diff options
| author | Christoph Hellwig <hch@lst.de> | 2021-06-16 15:46:58 +0200 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-06-16 16:53:58 +0200 |
| commit | b7fb14d3ac63117e0e8beabe75f4ea52051fbe3a (patch) | |
| tree | c41a62265a9e8fb40e8d3572a984c5ad8d313b7c | |
| parent | m68k: use libata instead of the legacy ide driver (diff) | |
| download | linux-b7fb14d3ac63117e0e8beabe75f4ea52051fbe3a.tar.xz linux-b7fb14d3ac63117e0e8beabe75f4ea52051fbe3a.zip | |
ide: remove the legacy ide driver
The legay ide driver has been replace with libata starting in 2003 and has
been scheduled for removal for a while. Finally kill it off so that we
can start cleaning up various bits of cruft it forced on the block layer.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
100 files changed, 2 insertions, 41173 deletions
diff --git a/Documentation/userspace-api/ioctl/hdio.rst b/Documentation/userspace-api/ioctl/hdio.rst index 817371bf94e9..6ee8fc88699f 100644 --- a/Documentation/userspace-api/ioctl/hdio.rst +++ b/Documentation/userspace-api/ioctl/hdio.rst @@ -7,8 +7,8 @@ Summary of `HDIO_` ioctl calls November, 2004 This document attempts to describe the ioctl(2) calls supported by -the HD/IDE layer. These are by-and-large implemented (as of Linux 2.6) -in drivers/ide/ide.c and drivers/block/scsi_ioctl.c +the HD/IDE layer. These are by-and-large implemented (as of Linux 5.11) +drivers/ata/libata-scsi.c. ioctl values are listed in <linux/hdreg.h>. As of this writing, they are as follows: @@ -17,50 +17,17 @@ are as follows: ======================= ======================================= HDIO_GETGEO get device geometry - HDIO_GET_UNMASKINTR get current unmask setting - HDIO_GET_MULTCOUNT get current IDE blockmode setting - HDIO_GET_QDMA get use-qdma flag - HDIO_SET_XFER set transfer rate via proc - HDIO_OBSOLETE_IDENTITY OBSOLETE, DO NOT USE - HDIO_GET_KEEPSETTINGS get keep-settings-on-reset flag HDIO_GET_32BIT get current io_32bit setting - HDIO_GET_NOWERR get ignore-write-error flag - HDIO_GET_DMA get use-dma flag - HDIO_GET_NICE get nice flags HDIO_GET_IDENTITY get IDE identification info - HDIO_GET_WCACHE get write cache mode on|off - HDIO_GET_ACOUSTIC get acoustic value - HDIO_GET_ADDRESS get sector addressing mode - HDIO_GET_BUSSTATE get the bus state of the hwif - HDIO_TRISTATE_HWIF execute a channel tristate - HDIO_DRIVE_RESET execute a device reset HDIO_DRIVE_TASKFILE execute raw taskfile HDIO_DRIVE_TASK execute task and special drive command HDIO_DRIVE_CMD execute a special drive command - HDIO_DRIVE_CMD_AEB HDIO_DRIVE_TASK ======================= ======================================= ioctls that pass non-pointer values: ======================= ======================================= - HDIO_SET_MULTCOUNT change IDE blockmode - HDIO_SET_UNMASKINTR permit other irqs during I/O - HDIO_SET_KEEPSETTINGS keep ioctl settings on reset HDIO_SET_32BIT change io_32bit flags - HDIO_SET_NOWERR change ignore-write-error flag - HDIO_SET_DMA change use-dma flag - HDIO_SET_PIO_MODE reconfig interface to new speed - HDIO_SCAN_HWIF register and (re)scan interface - HDIO_SET_NICE set nice flags - HDIO_UNREGISTER_HWIF unregister interface - HDIO_SET_WCACHE change write cache enable-disable - HDIO_SET_ACOUSTIC change acoustic behavior - HDIO_SET_BUSSTATE set the bus state of the hwif - HDIO_SET_QDMA change use-qdma flag - HDIO_SET_ADDRESS change lba addressing modes - - HDIO_SET_IDE_SCSI Set scsi emulation mode on/off - HDIO_SET_SCSI_IDE not implemented yet ======================= ======================================= @@ -137,143 +104,6 @@ HDIO_GETGEO - -HDIO_GET_UNMASKINTR - get current unmask setting - - - usage:: - - long val; - - ioctl(fd, HDIO_GET_UNMASKINTR, &val); - - inputs: - none - - - - outputs: - The value of the drive's current unmask setting - - - - - -HDIO_SET_UNMASKINTR - permit other irqs during I/O - - - usage:: - - unsigned long val; - - ioctl(fd, HDIO_SET_UNMASKINTR, val); - - inputs: - New value for unmask flag - - - - outputs: - none - - - - error return: - - EINVAL Called on a partition instead of the whole disk device - - EACCES Access denied: requires CAP_SYS_ADMIN - - EINVAL value out of range [0 1] - - EBUSY Controller busy - - - - -HDIO_GET_MULTCOUNT - get current IDE blockmode setting - - - usage:: - - long val; - - ioctl(fd, HDIO_GET_MULTCOUNT, &val); - - inputs: - none - - - - outputs: - The value of the current IDE block mode setting. This - controls how many sectors the drive will transfer per - interrupt. - - - -HDIO_SET_MULTCOUNT - change IDE blockmode - - - usage:: - - int val; - - ioctl(fd, HDIO_SET_MULTCOUNT, val); - - inputs: - New value for IDE block mode setting. This controls how many - sectors the drive will transfer per interrupt. - - outputs: - none - - - - error return: - - EINVAL Called on a partition instead of the whole disk device - - EACCES Access denied: requires CAP_SYS_ADMIN - - EINVAL value out of range supported by disk. - - EBUSY Controller busy or blockmode already set. - - EIO Drive did not accept new block mode. - - notes: - Source code comments read:: - - This is tightly woven into the driver->do_special cannot - touch. DON'T do it again until a total personality rewrite - is committed. - - If blockmode has already been set, this ioctl will fail with - -EBUSY - - - -HDIO_GET_QDMA - get use-qdma flag - - - Not implemented, as of 2.6.8.1 - - - -HDIO_SET_XFER - set transfer rate via proc - - - Not implemented, as of 2.6.8.1 - - - -HDIO_OBSOLETE_IDENTITY - OBSOLETE, DO NOT USE - - - Same as HDIO_GET_IDENTITY (see below), except that it only - returns the first 142 bytes of drive identity information. - - - HDIO_GET_IDENTITY get IDE identification info @@ -308,60 +138,6 @@ HDIO_GET_IDENTITY -HDIO_GET_KEEPSETTINGS - get keep-settings-on-reset flag - - - usage:: - - long val; - - ioctl(fd, HDIO_GET_KEEPSETTINGS, &val); - - inputs: - none - - - - outputs: - The value of the current "keep settings" flag - - - - notes: - When set, indicates that kernel should restore settings - after a drive reset. - - - -HDIO_SET_KEEPSETTINGS - keep ioctl settings on reset - - - usage:: - - long val; - - ioctl(fd, HDIO_SET_KEEPSETTINGS, val); - - inputs: - New value for keep_settings flag - - - - outputs: - none - - - - error return: - - EINVAL Called on a partition instead of the whole disk device - - EACCES Access denied: requires CAP_SYS_ADMIN - - EINVAL value out of range [0 1] - - EBUSY Controller busy - - - HDIO_GET_32BIT get current io_32bit setting @@ -387,288 +163,6 @@ HDIO_GET_32BIT - - -HDIO_GET_NOWERR - get ignore-write-error flag - - - usage:: - - long val; - - ioctl(fd, HDIO_GET_NOWERR, &val); - - inputs: - none - - - - outputs: - The value of the current ignore-write-error flag - - - - - -HDIO_GET_DMA - get use-dma flag - - - usage:: - - long val; - - ioctl(fd, HDIO_GET_DMA, &val); - - inputs: - none - - - - outputs: - The value of the current use-dma flag - - - - - -HDIO_GET_NICE - get nice flags - - - usage:: - - long nice; - - ioctl(fd, HDIO_GET_NICE, &nice); - - inputs: - none - - - - outputs: - The drive's "nice" values. - - - - notes: - Per-drive flags which determine when the system will give more - bandwidth to other devices sharing the same IDE bus. - - See <linux/hdreg.h>, near symbol IDE_NICE_DSC_OVERLAP. - - - - -HDIO_SET_NICE - set nice flags - - - usage:: - - unsigned long nice; - - ... - ioctl(fd, HDIO_SET_NICE, nice); - - inputs: - bitmask of nice flags. - - - - outputs: - none - - - - error returns: - - EACCES Access denied: requires CAP_SYS_ADMIN - - EPERM Flags other than DSC_OVERLAP and NICE_1 set. - - EPERM DSC_OVERLAP specified but not supported by drive - - notes: - This ioctl sets the DSC_OVERLAP and NICE_1 flags from values - provided by the user. - - Nice flags are listed in <linux/hdreg.h>, starting with - IDE_NICE_DSC_OVERLAP. These values represent shifts. - - - - - -HDIO_GET_WCACHE - get write cache mode on|off - - - usage:: - - long val; - - ioctl(fd, HDIO_GET_WCACHE, &val); - - inputs: - none - - - - outputs: - The value of the current write cache mode - - - - - -HDIO_GET_ACOUSTIC - get acoustic value - - - usage:: - - long val; - - ioctl(fd, HDIO_GET_ACOUSTIC, &val); - - inputs: - none - - - - outputs: - The value of the current acoustic settings - - - - notes: - See HDIO_SET_ACOUSTIC - - - - - -HDIO_GET_ADDRESS - usage:: - - - long val; - - ioctl(fd, HDIO_GET_ADDRESS, &val); - - inputs: - none - - - - outputs: - The value of the current addressing mode: - - = =================== - 0 28-bit - 1 48-bit - 2 48-bit doing 28-bit - 3 64-bit - = =================== - - - -HDIO_GET_BUSSTATE - get the bus state of the hwif - - - usage:: - - long state; - - ioctl(fd, HDIO_SCAN_HWIF, &state); - - inputs: - none - - - - outputs: - Current power state of the IDE bus. One of BUSSTATE_OFF, - BUSSTATE_ON, or BUSSTATE_TRISTATE - - error returns: - - EACCES Access denied: requires CAP_SYS_ADMIN - - - - -HDIO_SET_BUSSTATE - set the bus state of the hwif - - - usage:: - - int state; - - ... - ioctl(fd, HDIO_SCAN_HWIF, state); - - inputs: - Desired IDE power state. One of BUSSTATE_OFF, BUSSTATE_ON, - or BUSSTATE_TRISTATE - - outputs: - none - - - - error returns: - - EACCES Access denied: requires CAP_SYS_RAWIO - - EOPNOTSUPP Hardware interface does not support bus power control - - - - -HDIO_TRISTATE_HWIF - execute a channel tristate - - - Not implemented, as of 2.6.8.1. See HDIO_SET_BUSSTATE - - - -HDIO_DRIVE_RESET - execute a device reset - - - usage:: - - int args[3] - - ... - ioctl(fd, HDIO_DRIVE_RESET, args); - - inputs: - none - - - - outputs: - none - - - - error returns: - - EACCES Access denied: requires CAP_SYS_ADMIN - - ENXIO No such device: phy dead or ctl_addr == 0 - - EIO I/O error: reset timed out or hardware error - - notes: - - - Execute a reset on the device as soon as the current IO - operation has completed. - - - Executes an ATAPI soft reset if applicable, otherwise - executes an ATA soft reset on the controller. - - - HDIO_DRIVE_TASKFILE execute raw taskfile @@ -1026,14 +520,6 @@ HDIO_DRIVE_TASK -HDIO_DRIVE_CMD_AEB - HDIO_DRIVE_TASK - - - Not implemented, as of 2.6.8.1 - - - HDIO_SET_32BIT change io_32bit flags @@ -1059,284 +545,3 @@ HDIO_SET_32BIT - EACCES Access denied: requires CAP_SYS_ADMIN - EINVAL value out of range [0 3] - EBUSY Controller busy - - - - -HDIO_SET_NOWERR - change ignore-write-error flag - - - usage:: - - int val; - - ioctl(fd, HDIO_SET_NOWERR, val); - - inputs: - New value for ignore-write-error flag. Used for ignoring - - - WRERR_STAT - - outputs: - none - - - - error return: - - EINVAL Called on a partition instead of the whole disk device - - EACCES Access denied: requires CAP_SYS_ADMIN - - EINVAL value out of range [0 1] - - EBUSY Controller busy - - - -HDIO_SET_DMA - change use-dma flag - - - usage:: - - long val; - - ioctl(fd, HDIO_SET_DMA, val); - - inputs: - New value for use-dma flag - - - - outputs: - none - - - - error return: - - EINVAL Called on a partition instead of the whole disk device - - EACCES Access denied: requires CAP_SYS_ADMIN - - EINVAL value out of range [0 1] - - EBUSY Controller busy - - - -HDIO_SET_PIO_MODE - reconfig interface to new speed - - - usage:: - - long val; - - ioctl(fd, HDIO_SET_PIO_MODE, val); - - inputs: - New interface speed. - - - - outputs: - none - - - - error return: - - EINVAL Called on a partition instead of the whole disk device - - EACCES Access denied: requires CAP_SYS_ADMIN - - EINVAL value out of range [0 255] - - EBUSY Controller busy - - - -HDIO_SCAN_HWIF - register and (re)scan interface - - - usage:: - - int args[3] - - ... - ioctl(fd, HDIO_SCAN_HWIF, args); - - inputs: - - ======= ========================= - args[0] io address to probe - - - args[1] control address to probe - args[2] irq number - ======= ========================= - - outputs: - none - - - - error returns: - - EACCES Access denied: requires CAP_SYS_RAWIO - - EIO Probe failed. - - notes: - This ioctl initializes the addresses and irq for a disk - controller, probes for drives, and creates /proc/ide - interfaces as appropriate. - - - -HDIO_UNREGISTER_HWIF - unregister interface - - - usage:: - - int index; - - ioctl(fd, HDIO_UNREGISTER_HWIF, index); - - inputs: - index index of hardware interface to unregister - - - - outputs: - none - - - - error returns: - - EACCES Access denied: requires CAP_SYS_RAWIO - - notes: - This ioctl removes a hardware interface from the kernel. - - Currently (2.6.8) this ioctl silently fails if any drive on - the interface is busy. - - - -HDIO_SET_WCACHE - change write cache enable-disable - - - usage:: - - int val; - - ioctl(fd, HDIO_SET_WCACHE, val); - - inputs: - New value for write cache enable - - - - outputs: - none - - - - error return: - - EINVAL Called on a partition instead of the whole disk device - - EACCES Access denied: requires CAP_SYS_ADMIN - - EINVAL value out of range [0 1] - - EBUSY Controller busy - - - -HDIO_SET_ACOUSTIC - change acoustic behavior - - - usage:: - - int val; - - ioctl(fd, HDIO_SET_ACOUSTIC, val); - - inputs: - New value for drive acoustic settings - - - - outputs: - none - - - - error return: - - EINVAL Called on a partition instead of the whole disk device - - EACCES Access denied: requires CAP_SYS_ADMIN - - EINVAL value out of range [0 254] - - EBUSY Controller busy - - - -HDIO_SET_QDMA - change use-qdma flag - - - Not implemented, as of 2.6.8.1 - - - -HDIO_SET_ADDRESS - change lba addressing modes - - - usage:: - - int val; - - ioctl(fd, HDIO_SET_ADDRESS, val); - - inputs: - New value for addressing mode - - = =================== - 0 28-bit - 1 48-bit - 2 48-bit doing 28-bit - = =================== - - outputs: - none - - - - error return: - - EINVAL Called on a partition instead of the whole disk device - - EACCES Access denied: requires CAP_SYS_ADMIN - - EINVAL value out of range [0 2] - - EBUSY Controller busy - - EIO Drive does not support lba48 mode. - - -HDIO_SET_IDE_SCSI - usage:: - - - long val; - - ioctl(fd, HDIO_SET_IDE_SCSI, val); - - inputs: - New value for scsi emulation mode (?) - - - - outputs: - none - - - - error return: - - EINVAL Called on a partition instead of the whole disk device - - EACCES Access denied: requires CAP_SYS_ADMIN - - EINVAL value out of range [0 1] - - EBUSY Controller busy - - - -HDIO_SET_SCSI_IDE - Not implemented, as of 2.6.8.1 diff --git a/MAINTAINERS b/MAINTAINERS index 008fcad7ac00..4f3a7e3ce93f 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -8763,22 +8763,6 @@ L: linux-i2c@vger.kernel.org S: Maintained F: drivers/i2c/busses/i2c-icy.c -IDE SUBSYSTEM -M: "David S. Miller" <davem@davemloft.net> -L: linux-ide@vger.kernel.org -S: Maintained -Q: http://patchwork.ozlabs.org/project/linux-ide/list/ -T: git git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide.git -F: Documentation/ide/ -F: drivers/ide/ -F: include/linux/ide.h - -IDE/ATAPI DRIVERS -L: linux-ide@vger.kernel.org -S: Orphan -F: Documentation/cdrom/ide-cd.rst -F: drivers/ide/ide-cd* - IDEAPAD LAPTOP EXTRAS DRIVER M: Ike Panhc <ike.pan@canonical.com> L: platform-driver-x86@vger.kernel.org diff --git a/drivers/Kconfig b/drivers/Kconfig index 47980c6b1945..8bad63417a50 100644 --- a/drivers/Kconfig +++ b/drivers/Kconfig @@ -33,8 +33,6 @@ source "drivers/nvme/Kconfig" source "drivers/misc/Kconfig" -source "drivers/ide/Kconfig" - source "drivers/scsi/Kconfig" source "drivers/ata/Kconfig" diff --git a/drivers/Makefile b/drivers/Makefile index 5a6d613e868d..f85185f9139e 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -78,7 +78,6 @@ obj-$(CONFIG_CXL_BUS) += cxl/ obj-$(CONFIG_DMA_SHARED_BUFFER) += dma-buf/ obj-$(CONFIG_NUBUS) += nubus/ obj-y += macintosh/ -obj-$(CONFIG_IDE) += ide/ obj-y += scsi/ obj-y += nvme/ obj-$(CONFIG_ATA) += ata/ diff --git a/drivers/ide/Kconfig b/drivers/ide/Kconfig deleted file mode 100644 index 8af1ac69e5f8..000000000000 --- a/drivers/ide/Kconfig +++ /dev/null @@ -1,827 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0-only -# -# IDE ATA ATAPI Block device driver configuration -# - -# Select HAVE_IDE if IDE is supported -config HAVE_IDE - bool - -menuconfig IDE - tristate "ATA/ATAPI/MFM/RLL support (DEPRECATED)" - depends on HAVE_IDE - depends on BLOCK - select BLK_SCSI_REQUEST - help - If you say Y here, your kernel will be able to manage ATA/(E)IDE and - ATAPI units. The most common cases are IDE hard drives and ATAPI - CD-ROM drives. - - This subsystem is currently in maintenance mode with only bug fix - changes applied. Users of ATA hardware are encouraged to migrate to - the newer ATA subsystem ("Serial ATA (prod) and Parallel ATA - (experimental) drivers") which is more actively maintained. - - To compile this driver as a module, choose M here: the - module will be called ide-core. - - For further information, please read <file:Documentation/ide/ide.rst>. - - If unsure, say N. - -if IDE - -comment "Please see Documentation/ide/ide.rst for help/info on IDE drives" - -config IDE_XFER_MODE - bool - -config IDE_TIMINGS - bool - select IDE_XFER_MODE - -config IDE_ATAPI - bool - -config IDE_LEGACY - bool - -config BLK_DEV_IDE_SATA - bool "Support for SATA (deprecated; conflicts with libata SATA driver)" - default n - help - There are two drivers for Serial ATA controllers. - - The main driver, "libata", uses the SCSI subsystem - and supports most modern SATA controllers. In order to use it - you may take a look at "Serial ATA (prod) and Parallel ATA - (experimental) drivers". - - The IDE driver (which you are currently configuring) supports - a few first-generation SATA controllers. - - In order to eliminate conflicts between the two subsystems, - this config option enables the IDE driver's SATA support. - Normally this is disabled, as it is preferred that libata - supports SATA controllers, and this (IDE) driver supports - PATA controllers. - - If unsure, say N. - -config IDE_GD - tristate "generic ATA/ATAPI disk support" - default y - help - Support for ATA/ATAPI disks (including ATAPI floppy drives). - - To compile this driver as a module, choose M here. - The module will be called ide-gd_mod. - - If unsure, say Y. - -config IDE_GD_ATA - bool "ATA disk support" - depends on IDE_GD - default y - help - This will include support for ATA hard disks. - - If unsure, say Y. - -config IDE_GD_ATAPI - bool "ATAPI floppy support" - depends on IDE_GD - select IDE_ATAPI - help - This will include support for ATAPI floppy drives - (i.e. Iomega ZIP or MKE LS-120). - - For information about jumper settings and the question - of when a ZIP drive uses a partition table, see - <http://www.win.tue.nl/~aeb/linux/zip/zip-1.html>. - - If unsure, say N. - -config BLK_DEV_IDECS - tristate "PCMCIA IDE support" - depends on PCMCIA - help - Support for Compact Flash cards, outboard IDE disks, tape drives, - and CD-ROM drives connected through a PCMCIA card. - -config BLK_DEV_DELKIN - tristate "Cardbus IDE support (Delkin/ASKA/Workbit)" - depends on CARDBUS && PCI - help - Support for Delkin, ASKA, and Workbit Cardbus CompactFlash - Adapters. This may also work for similar SD and XD adapters. - -config BLK_DEV_IDECD - tristate "Include IDE/ATAPI CDROM support" - depends on BLK_DEV - select IDE_ATAPI - select CDROM - help - If you have a CD-ROM drive using the ATAPI protocol, say Y. ATAPI is - a newer protocol used by IDE CD-ROM and TAPE drives, similar to the - SCSI protocol. Most new CD-ROM drives use ATAPI, including the - NEC-260, Mitsumi FX400, Sony 55E, and just about all non-SCSI - double(2X) or better speed drives. - - If you say Y here, the CD-ROM drive will be identified at boot time - along with other IDE devices, as "hdb" or "hdc", or something - similar (check the boot messages with dmesg). If this is your only - CD-ROM drive, you can say N to all other CD-ROM options, but be sure - to say Y or M to "ISO 9660 CD-ROM file system support". - - To compile this driver as a module, choose M here: the - module will be called ide-cd. - -config BLK_DEV_IDECD_VERBOSE_ERRORS - bool "Verbose error logging for IDE/ATAPI CDROM driver" if EXPERT - depends on BLK_DEV_IDECD - default y - help - Turn this on to have the driver print out the meanings of the - ATAPI error codes. This will use up additional 8kB of kernel-space - memory, though. - -config BLK_DEV_IDETAPE - tristate "Include IDE/ATAPI TAPE support" - select IDE_ATAPI - help - If you have an IDE tape drive using the ATAPI protocol, say Y. - ATAPI is a newer protocol used by IDE tape and CD-ROM drives, - similar to the SCSI protocol. If you have an SCSI tape drive - however, you can say N here. - - You should also say Y if you have an OnStream DI-30 tape drive; this - will not work with the SCSI protocol, until there is support for the - SC-30 and SC-50 versions. - - If you say Y here, the tape drive will be identified at boot time - along with other IDE devices, as "hdb" or "hdc", or something - similar, and will be mapped to a character device such as "ht0" - (check the boot messages with dmesg). Be sure to consult the - <file:drivers/ide/ide-tape.c> and <file:Documentation/ide/ide.rst> - files for usage information. - - To compile this driver as a module, choose M here: the - module will be called ide-tape. - -config BLK_DEV_IDEACPI - bool "IDE ACPI support" - depends on ACPI - help - Implement ACPI support for generic IDE devices. On modern - machines ACPI support is required to properly handle ACPI S3 states. - -config IDE_TASK_IOCTL - bool "IDE Taskfile Access" - help - This is a direct raw access to the media. It is a complex but - elegant solution to test and validate the domain of the hardware and - perform below the driver data recovery if needed. This is the most - basic form of media-forensics. - - If you are unsure, say N here. - -config IDE_PROC_FS - bool "legacy /proc/ide/ support" - depends on IDE && PROC_FS - default y - help - This option enables support for the various files in - /proc/ide. In Linux 2.6 this has been superseded by - files in sysfs but many legacy applications rely on this. - - If unsure say Y. - -comment "IDE chipset support/bugfixes" - -config IDE_GENERIC - tristate "generic/default IDE chipset support" - depends on ALPHA || X86 || IA64 || MIPS || ARCH_RPC - default ARM && ARCH_RPC - help - This is the generic IDE driver. This driver attaches to the - fixed legacy ports (e.g. on PCs 0x1f0/0x170, 0x1e8/0x168 and - so on). Please note that if this driver is built into the - kernel or loaded before other ATA (IDE or libata) drivers - and the controller is located at legacy ports, this driver - may grab those ports and thus can prevent the controller - specific driver from attaching. - - Also, currently, IDE generic doesn't allow IRQ sharing - meaning that the IRQs it grabs won't be available to other - controllers sharing those IRQs which usually makes drivers - for those controllers fail. Generally, it's not a good idea - to load IDE generic driver on modern systems. - - If unsure, say N. - -config BLK_DEV_PLATFORM - tristate "Platform driver for IDE interfaces" - help - This is the platform IDE driver, used mostly for Memory Mapped - IDE devices, like Compact Flashes running in True IDE mode. - - If unsure, say N. - -config BLK_DEV_CMD640 - tristate "CMD640 chipset bugfix/support" - depends on X86 - select IDE_TIMINGS - help - The CMD-Technologies CMD640 IDE chip is used on many common 486 and - Pentium motherboards, usually in combination with a "Neptune" or - "SiS" chipset. Unfortunately, it has a number of rather nasty - design flaws that can cause severe data corruption under many common - conditions. Say Y here to include code which tries to automatically - detect and correct the problems under Linux. This option also - enables access to the secondary IDE ports in some CMD640 based - systems. - - This driver will work automatically in PCI based systems (most new - systems have PCI slots). But if your system uses VESA local bus - (VLB) instead of PCI, you must also supply a kernel boot parameter - to enable the CMD640 bugfix/support: "cmd640.probe_vlb". (Try "man - bootparam" or see the documentation of your boot loader about how to - pass options to the kernel.) - - The CMD640 chip is also used on add-in cards by Acculogic, and on - the "CSA-6400E PCI to IDE controller" that some people have. For - details, read <file:Documentation/ide/ide.rst>. - -config BLK_DEV_CMD640_ENHANCED - bool "CMD640 enhanced support" - depends on BLK_DEV_CMD640 - help - This option includes support for setting/autotuning PIO modes and - prefetch on CMD640 IDE interfaces. For details, read - <file:Documentation/ide/ide.rst>. If you have a CMD640 IDE interface - and your BIOS does not already do this for you, then say Y here. - Otherwise say N. - -config BLK_DEV_IDEPNP - tristate "PNP EIDE support" - depends on PNP - help - If you have a PnP (Plug and Play) compatible EIDE card and - would like the kernel to automatically detect and activate - it, say Y here. - -config BLK_DEV_IDEDMA_SFF - bool - -if PCI - -comment "PCI IDE chipsets support" - -config BLK_DEV_IDEPCI - bool - -config IDEPCI_PCIBUS_ORDER - bool "Probe IDE PCI devices in the PCI bus order (DEPRECATED)" - depends on IDE=y && BLK_DEV_IDEPCI - default y - help - Probe IDE PCI devices in the order in which they appear on the - PCI bus (i.e. 00:1f.1 PCI device before 02:01.0 PCI device) - instead of the order in which IDE PCI host drivers are loaded. - - Please note that this method of assuring stable naming of - IDE devices is unreliable and use other means for achieving - it (i.e. udev). - - If in doubt, say N. - -# TODO: split it on per host driver config options (or module parameters) -config BLK_DEV_OFFBOARD - bool "Boot off-board chipsets first support (DEPRECATED)" - depends on BLK_DEV_IDEPCI && (BLK_DEV_AEC62XX || BLK_DEV_GENERIC || BLK_DEV_HPT366 || BLK_DEV_PDC202XX_NEW || BLK_DEV_PDC202XX_OLD || BLK_DEV_TC86C001) - help - Normally, IDE controllers built into the motherboard (on-board - controllers) are assigned to ide0 and ide1 while those on add-in PCI - cards (off-board controllers) are relegated to ide2 and ide3. - Answering Y here will allow you to reverse the situation, with - off-board controllers on ide0/1 and on-board controllers on ide2/3. - This can improve the usability of some boot managers such as lilo - when booting from a drive on an off-board controller. - - Note that, if you do this, the order of the hd* devices will be - rearranged which may require modification of fstab and other files. - - Please also note that this method of assuring stable naming of - IDE devices is unreliable and use other means for achieving it - (i.e. udev). - - If in doubt, say N. - -config BLK_DEV_GENERIC - tristate "Generic PCI IDE Chipset Support" - select BLK_DEV_IDEPCI - help - This option provides generic support for various PCI IDE Chipsets - which otherwise might not be supported. - -config BLK_DEV_OPTI621 - tristate "OPTi 82C621 chipset enhanced support" - select BLK_DEV_IDEPCI - help - This is a driver for the OPTi 82C621 EIDE controller. - Please read the comments at the top of <file:drivers/ide/opti621.c>. - -config BLK_DEV_RZ1000 - tristate "RZ1000 chipset bugfix/support" - depends on X86 - select BLK_DEV_IDEPCI - help - The PC-Technologies RZ1000 IDE chip is used on many common 486 and - Pentium motherboards, usually along with the "Neptune" chipset. - Unfortunately, it has a rather nasty design flaw that can cause - severe data corruption under many conditions. Say Y here to include - code which automatically detects and corrects the problem under - Linux. This may slow disk throughput by a few percent, but at least - things will operate 100% reliably. - -config BLK_DEV_IDEDMA_PCI - bool - select BLK_DEV_IDEPCI - select BLK_DEV_IDEDMA_SFF - -config BLK_DEV_AEC62XX - tristate "AEC62XX chipset support" - select BLK_DEV_IDEDMA_PCI - help - This driver adds explicit support for Acard AEC62xx (Artop ATP8xx) - IDE controllers. This allows the kernel to change PIO, DMA and UDMA - speeds and to configure the chip to optimum performance. - -config BLK_DEV_ALI15X3 - tristate "ALI M15x3 chipset support" - select IDE_TIMINGS - select BLK_DEV_IDEDMA_PCI - help - This driver ensures (U)DMA support for ALI 1533, 1543 and 1543C - onboard chipsets. It also tests for Simplex mode and enables - normal dual channel support. - - Please read the comments at the top of - <file:drivers/ide/alim15x3.c>. - - If unsure, say N. - -config BLK_DEV_AMD74XX - tristate "AMD and nVidia IDE support" - depends on !ARM - select IDE_TIMINGS - select BLK_DEV_IDEDMA_PCI - help - This driver adds explicit support for AMD-7xx and AMD-8111 chips - and also for the nVidia nForce chip. This allows the kernel to - change PIO, DMA and UDMA speeds and to configure the chip to - optimum performance. - -config BLK_DEV_ATIIXP - tristate "ATI IXP chipset IDE support" - depends on X86 - select BLK_DEV_IDEDMA_PCI - help - This driver adds explicit support for ATI IXP chipset. - This allows the kernel to change PIO, DMA and UDMA speeds - and to configure the chip to optimum performance. - - Say Y here if you have an ATI IXP chipset IDE controller. - -config BLK_DEV_CMD64X - tristate "CMD64{3|6|8|9} chipset support" - select IDE_TIMINGS - select BLK_DEV_IDEDMA_PCI - help - Say Y here if you have an IDE controller which uses any of these - chipsets: CMD643, CMD646, or CMD648. - -config BLK_DEV_TRIFLEX - tristate "Compaq Triflex IDE support" - select BLK_DEV_IDEDMA_PCI - help - Say Y here if you have a Compaq Triflex IDE controller, such - as those commonly found on Compaq Pentium-Pro systems - -config BLK_DEV_CY82C693 - tristate "CY82C693 chipset support" - depends on ALPHA - select IDE_TIMINGS - select BLK_DEV_IDEDMA_PCI - help - This driver adds detection and support for the CY82C693 chipset - used on Digital's PC-Alpha 164SX boards. - -config BLK_DEV_CS5520 - tristate "Cyrix CS5510/20 MediaGX chipset support (VERY EXPERIMENTAL)" - depends on X86_32 || COMPILE_TEST - select BLK_DEV_IDEDMA_PCI - help - Include support for PIO tuning and virtual DMA on the Cyrix MediaGX - 5510/5520 chipset. This will automatically be detected and - configured if found. - - It is safe to say Y to this question. - -config BLK_DEV_CS5530 - tristate "Cyrix/National Semiconductor CS5530 MediaGX chipset support" - depends on X86_32 || COMPILE_TEST - select BLK_DEV_IDEDMA_PCI - help - Include support for UDMA on the Cyrix MediaGX 5530 chipset. This - will automatically be detected and configured if found. - - It is safe to say Y to this question. - -config BLK_DEV_CS5535 - tristate "AMD CS5535 chipset support" - depends on X86_32 - select BLK_DEV_IDEDMA_PCI - help - Include support for UDMA on the NSC/AMD CS5535 companion chipset. - This will automatically be detected and configured if found. - - It is safe to say Y to this question. - -config BLK_DEV_CS5536 - tristate "CS5536 chipset support" - depends on X86_32 - select BLK_DEV_IDEDMA_PCI - help - This option enables support for the AMD CS5536 - companion chip used with the Geode LX processor family. - - If unsure, say N. - -config BLK_DEV_HPT366 - tristate "HPT36X/37X chipset support" - select BLK_DEV_IDEDMA_PCI - help - HPT366 is an Ultra DMA chipset for ATA-66. - HPT368 is an Ultra DMA chipset for ATA-66 RAID Based. - HPT370 is an Ultra DMA chipset for ATA-100. - HPT372 is an Ultra DMA chipset for ATA-100. - HPT374 is an Ultra DMA chipset for ATA-100. - - This driver adds up to 4 more EIDE devices sharing a single - interrupt. - - The HPT366 chipset in its current form is bootable. One solution - for this problem are special LILO commands for redirecting the - reference to device 0x80. The other solution is to say Y to "Boot - off-board chipsets first support" (CONFIG_BLK_DEV_OFFBOARD) unless - your mother board has the chipset natively mounted. Regardless one - should use the fore mentioned option and call at LILO. - - This driver requires dynamic tuning of the chipset during the - ide-probe at boot. It is reported to support DVD II drives, by the - manufacturer. - -config BLK_DEV_JMICRON - tristate "JMicron JMB36x support" - select BLK_DEV_IDEDMA_PCI - help - Basic support for the JMicron ATA controllers. For full support - use the libata drivers. - -config BLK_DEV_SC1200 - tristate "National SCx200 chipset support" - depends on X86_32 || COMPILE_TEST - select BLK_DEV_IDEDMA_PCI - help - This driver adds support for the on-board IDE controller on the - National SCx200 series of embedded x86 "Geode" systems. - -config BLK_DEV_PIIX - tristate "Intel PIIX/ICH chipsets support" - select BLK_DEV_IDEDMA_PCI - help - This driver adds explicit support for Intel PIIX and ICH chips. - This allows the kernel to change PIO, DMA and UDMA speeds and to - configure the chip to optimum performance. - -config BLK_DEV_IT8172 - tristate "IT8172 IDE support" - select BLK_DEV_IDEDMA_PCI - help - This driver adds support for the IDE controller on the - IT8172 System Controller. - -config BLK_DEV_IT8213 - tristate "IT8213 IDE support" - select BLK_DEV_IDEDMA_PCI - help - This driver adds support for the ITE 8213 IDE controller. - -config BLK_DEV_IT821X - tristate "IT821X IDE support" - select BLK_DEV_IDEDMA_PCI - help - This driver adds support for the ITE 8211 IDE controller and the - IT 8212 IDE RAID controller in both RAID and pass-through mode. - -config BLK_DEV_NS87415 - tristate "NS87415 chipset support" - select BLK_DEV_IDEDMA_PCI - help - This driver adds detection and support for the NS87415 chip - (used mainly on SPARC64 and PA-RISC machines). - - Please read the comments at the top of <file:drivers/ide/ns87415.c>. - -config BLK_DEV_PDC202XX_OLD - tristate "PROMISE PDC202{46|62|65|67} support" - select BLK_DEV_IDEDMA_PCI - help - Promise Ultra33 or PDC20246 - Promise Ultra66 or PDC20262 - Promise Ultra100 or PDC20265/PDC20267/PDC20268 - - This driver adds up to 4 more EIDE devices sharing a single - interrupt. This add-on card is a bootable PCI UDMA controller. Since - multiple cards can be installed and there are BIOS ROM problems that - happen if the BIOS revisions of all installed cards (three-max) do - not match, the driver attempts to do dynamic tuning of the chipset - at boot-time for max-speed. Ultra33 BIOS 1.25 or newer is required - for more than one card. - - Please read the comments at the top of - <file:drivers/ide/pdc202xx_old.c>. - - If unsure, say N. - -config BLK_DEV_PDC202XX_NEW - tristate "PROMISE PDC202{68|69|70|71|75|76|77} support" - select BLK_DEV_IDEDMA_PCI - -config BLK_DEV_SVWKS - tristate "ServerWorks OSB4/CSB5/CSB6 chipsets support" - select BLK_DEV_IDEDMA_PCI - help - This driver adds PIO/(U)DMA support for the ServerWorks OSB4/CSB5 - chipsets. - -config BLK_DEV_SIIMAGE - tristate "Silicon Image chipset support" - select BLK_DEV_IDEDMA_PCI - help - This driver adds PIO/(U)DMA support for the SI CMD680 and SII - 3112 (Serial ATA) chips. - -config BLK_DEV_SIS5513 - tristate "SiS5513 chipset support" - depends on X86 - select BLK_DEV_IDEDMA_PCI - help - This driver ensures (U)DMA support for SIS5513 chipset family based - mainboards. - - The following chipsets are supported: - ATA16: SiS5511, SiS5513 - ATA33: SiS5591, SiS5597, SiS5598, SiS5600 - ATA66: SiS530, SiS540, SiS620, SiS630, SiS640 - ATA100: SiS635, SiS645, SiS650, SiS730, SiS735, SiS740, - SiS745, SiS750 - - Please read the comments at the top of <file:drivers/ide/sis5513.c>. - -config BLK_DEV_SL82C105 - tristate "Winbond SL82c105 support" - depends on (PPC || ARM) - select IDE_TIMINGS - select BLK_DEV_IDEDMA_PCI - help - If you have a Winbond SL82c105 IDE controller, say Y here to enable - special configuration for this chip. This is common on various CHRP - motherboards, but could be used elsewhere. If in doubt, say Y. - -config BLK_DEV_SLC90E66 - tristate "SLC90E66 chipset support" - select BLK_DEV_IDEDMA_PCI - help - This driver ensures (U)DMA support for Victory66 SouthBridges for - SMsC with Intel NorthBridges. This is an Ultra66 based chipset. - The nice thing about it is that you can mix Ultra/DMA/PIO devices - and it will handle timing cycles. Since this is an improved - look-a-like to the PIIX4 it should be a nice addition. - - Please read the comments at the top of - <file:drivers/ide/slc90e66.c>. - -config BLK_DEV_TRM290 - tristate "Tekram TRM290 chipset support" - select BLK_DEV_IDEDMA_PCI - help - This driver adds support for bus master DMA transfers - using the Tekram TRM290 PCI IDE chip. Volunteers are - needed for further tweaking and development. - Please read the comments at the top of <file:drivers/ide/trm290.c>. - -config BLK_DEV_VIA82CXXX - tristate "VIA82CXXX chipset support" - select IDE_TIMINGS - select BLK_DEV_IDEDMA_PCI - help - This driver adds explicit support for VIA BusMastering IDE chips. - This allows the kernel to change PIO, DMA and UDMA speeds and to - configure the chip to optimum performance. - -config BLK_DEV_TC86C001 - tristate "Toshiba TC86C001 support" - select BLK_DEV_IDEDMA_PCI - help - This driver adds support for Toshiba TC86C001 GOKU-S chip. - -endif - -# TODO: BLK_DEV_IDEDMA_PCI -> BLK_DEV_IDEDMA_SFF -config BLK_DEV_IDE_PMAC - tristate "PowerMac on-board IDE support" - depends on PPC_PMAC - select IDE_TIMINGS - select BLK_DEV_IDEDMA_PCI - help - This driver provides support for the on-board IDE controller on - most of the recent Apple Power Macintoshes and PowerBooks. - If unsure, say Y. - -config BLK_DEV_IDE_PMAC_ATA100FIRST - bool "Probe on-board ATA/100 (Kauai) first" - depends on BLK_DEV_IDE_PMAC - help - This option will cause the ATA/100 controller found in UniNorth2 - based machines (Windtunnel PowerMac, Aluminium PowerBooks, ...) - to be probed before the ATA/66 and ATA/33 controllers. Without - these, those machine used to have the hard disk on hdc and the - CD-ROM on hda. This option changes this to more natural hda for - hard disk and hdc for CD-ROM. - -config BLK_DEV_IDE_TX4938 - tristate "TX4938 internal IDE support" - depends on SOC_TX4938 - select IDE_TIMINGS - -config BLK_DEV_IDE_TX4939 - tristate "TX4939 internal IDE support" - depends on SOC_TX4939 - select BLK_DEV_IDEDMA_SFF - -config BLK_DEV_IDE_ICSIDE - tristate "ICS IDE interface support" - depends on ARM && ARCH_ACORN - help - On Acorn systems, say Y here if you wish to use the ICS IDE - interface card. This is not required for ICS partition support. - If you are unsure, say N to this. - -config BLK_DEV_IDEDMA_ICS - bool "ICS DMA support" - depends on BLK_DEV_IDE_ICSIDE - help - Say Y here if you want to add DMA (Direct Memory Access) support to - the ICS IDE driver. - -config BLK_DEV_IDE_RAPIDE - tristate "RapIDE interface support" - depends on ARM && ARCH_ACORN - help - Say Y here if you want to support the Yellowstone RapIDE controller - manufactured for use with Acorn computers. - -config BLK_DEV_GAYLE - tristate "Amiga Gayle IDE interface support" - depends on AMIGA - help - This is the IDE driver for the Amiga Gayle IDE interface. It supports - both the `A1200 style' and `A4000 style' of the Gayle IDE interface, - This includes on-board IDE interfaces on some Amiga models (A600, - A1200, A4000, and A4000T), and IDE interfaces on the Zorro expansion - bus (M-Tech E-Matrix 530 expansion card). - - It also provides support for the so-called `IDE doublers' (made - by various manufacturers, e.g. Eyetech) that can be connected to - the on-board IDE interface of some Amiga models. Using such an IDE - doubler, you can connect up to four instead of two IDE devices to - the Amiga's on-board IDE interface. The feature is enabled at kernel - runtime using the "gayle.doubler" kernel boot parameter. - - Say Y if you have an Amiga with a Gayle IDE interface and want to use - IDE devices (hard disks, CD-ROM drives, etc.) that are connected to - it. - - Note that you also have to enable Zorro bus support if you want to - use Gayle IDE interfaces on the Zorro expansion bus. - -config BLK_DEV_BUDDHA - tristate "Buddha/Catweasel/X-Surf IDE interface support" - depends on ZORRO - help - This is the IDE driver for the IDE interfaces on the Buddha, Catweasel - and X-Surf expansion boards. It supports up to two interfaces on the - Buddha, three on the Catweasel and two on the X-Surf. - - Say Y if you have a Buddha or Catweasel expansion board and want to - use IDE devices (hard disks, CD-ROM drives, etc.) that are connected - to one of its IDE interfaces. - -config BLK_DEV_FALCON_IDE - tristate "Falcon and Q40/Q60 IDE interface support" - depends on ATARI || Q40 - help - This is the IDE driver for the on-board IDE interface on the Atari - Falcon and Q40/Q60. Say Y if you have such a machine and want to use - IDE devices (hard disks, CD-ROM drives, etc.) that are connected to - the on-board IDE interface. - -config BLK_DEV_PALMCHIP_BK3710 - tristate "Palmchip bk3710 IDE controller support" - depends on ARCH_DAVINCI - select IDE_TIMINGS - select BLK_DEV_IDEDMA_SFF - help - Say Y here if you want to support the onchip IDE controller on the - TI DaVinci SoC - -# no isa -> no vlb -if ISA && (ALPHA || X86 || MIPS) - -comment "Other IDE chipsets support" -comment "Note: most of these also require special kernel boot parameters" - -config BLK_DEV_4DRIVES - tristate "Generic 4 drives/port support" - help - Certain older chipsets, including the Tekram 690CD, use a single set - of I/O ports at 0x1f0 to control up to four drives, instead of the - customary two drives per port. Support for this can be enabled at - runtime using the "ide-4drives.probe" kernel boot parameter if you - say Y here. - -config BLK_DEV_ALI14XX - tristate "ALI M14xx support" - select IDE_TIMINGS - select IDE_LEGACY - help - This driver is enabled at runtime using the "ali14xx.probe" kernel - boot parameter. It enables support for the secondary IDE interface - of the ALI M1439/1443/1445/1487/1489 chipsets, and permits faster - I/O speeds to be set as well. - See the files <file:Documentation/ide/ide.rst> and - <file:drivers/ide/ali14xx.c> for more info. - -config BLK_DEV_DTC2278 - tristate "DTC-2278 support" - select IDE_XFER_MODE - select IDE_LEGACY - help - This driver is enabled at runtime using the "dtc2278.probe" kernel - boot parameter. It enables support for the secondary IDE interface - of the DTC-2278 card, and permits faster I/O speeds to be set as - well. See the <file:Documentation/ide/ide.rst> and - <file:drivers/ide/dtc2278.c> files for more info. - -config BLK_DEV_HT6560B - tristate "Holtek HT6560B support" - select IDE_TIMINGS - select IDE_LEGACY - help - This driver is enabled at runtime using the "ht6560b.probe" kernel - boot parameter. It enables support for the secondary IDE interface - of the Holtek card, and permits faster I/O speeds to be set as well. - See the <file:Documentation/ide/ide.rst> and - <file:drivers/ide/ht6560b.c> files for more info. - -config BLK_DEV_QD65XX - tristate "QDI QD65xx support" - select IDE_TIMINGS - select IDE_LEGACY - help - This driver is enabled at runtime using the "qd65xx.probe" kernel - boot parameter. It permits faster I/O speeds to be set. See the - <file:Documentation/ide/ide.rst> and <file:drivers/ide/qd65xx.c> - for more info. - -config BLK_DEV_UMC8672 - tristate "UMC-8672 support" - select IDE_XFER_MODE - select IDE_LEGACY - help - This driver is enabled at runtime using the "umc8672.probe" kernel - boot parameter. It enables support for the secondary IDE interface - of the UMC-8672, and permits faster I/O speeds to be set as well. - See the files <file:Documentation/ide/ide.rst> and - <file:drivers/ide/umc8672.c> for more info. - -endif - -config BLK_DEV_IDEDMA - def_bool BLK_DEV_IDEDMA_SFF || BLK_DEV_IDEDMA_ICS - select IDE_XFER_MODE - -endif # IDE diff --git a/drivers/ide/Makefile b/drivers/ide/Makefile deleted file mode 100644 index 991eb72a786b..000000000000 --- a/drivers/ide/Makefile +++ /dev/null @@ -1,109 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# -# link order is important here -# - -ide-core-y += ide.o ide-ioctls.o ide-io.o ide-iops.o ide-lib.o ide-probe.o \ - ide-taskfile.o ide-pm.o ide-park.o ide-sysfs.o ide-devsets.o \ - ide-io-std.o ide-eh.o - -# core IDE code -ide-core-$(CONFIG_IDE_XFER_MODE) += ide-pio-blacklist.o ide-xfer-mode.o -ide-core-$(CONFIG_IDE_TIMINGS) += ide-timings.o -ide-core-$(CONFIG_IDE_ATAPI) += ide-atapi.o -ide-core-$(CONFIG_BLK_DEV_IDEPCI) += setup-pci.o -ide-core-$(CONFIG_BLK_DEV_IDEDMA) += ide-dma.o -ide-core-$(CONFIG_BLK_DEV_IDEDMA_SFF) += ide-dma-sff.o -ide-core-$(CONFIG_IDE_PROC_FS) += ide-proc.o -ide-core-$(CONFIG_BLK_DEV_IDEACPI) += ide-acpi.o -ide-core-$(CONFIG_IDE_LEGACY) += ide-legacy.o - -obj-$(CONFIG_IDE) += ide-core.o - -obj-$(CONFIG_BLK_DEV_ALI14XX) += ali14xx.o -obj-$(CONFIG_BLK_DEV_UMC8672) += umc8672.o -obj-$(CONFIG_BLK_DEV_DTC2278) += dtc2278.o -obj-$(CONFIG_BLK_DEV_HT6560B) += ht6560b.o -obj-$(CONFIG_BLK_DEV_QD65XX) += qd65xx.o -obj-$(CONFIG_BLK_DEV_4DRIVES) += ide-4drives.o - -obj-$(CONFIG_BLK_DEV_GAYLE) += gayle.o -obj-$(CONFIG_BLK_DEV_FALCON_IDE) += falconide.o -obj-$(CONFIG_BLK_DEV_BUDDHA) += buddha.o - -obj-$(CONFIG_BLK_DEV_AEC62XX) += aec62xx.o -obj-$(CONFIG_BLK_DEV_ALI15X3) += alim15x3.o -obj-$(CONFIG_BLK_DEV_AMD74XX) += amd74xx.o -obj-$(CONFIG_BLK_DEV_ATIIXP) += atiixp.o -obj-$(CONFIG_BLK_DEV_CMD64X) += cmd64x.o -obj-$(CONFIG_BLK_DEV_CS5520) += cs5520.o -obj-$(CONFIG_BLK_DEV_CS5530) += cs5530.o -obj-$(CONFIG_BLK_DEV_CS5535) += cs5535.o -obj-$(CONFIG_BLK_DEV_CS5536) += cs5536.o -obj-$(CONFIG_BLK_DEV_SC1200) += sc1200.o -obj-$(CONFIG_BLK_DEV_CY82C693) += cy82c693.o -obj-$(CONFIG_BLK_DEV_DELKIN) += delkin_cb.o -obj-$(CONFIG_BLK_DEV_HPT366) += hpt366.o -obj-$(CONFIG_BLK_DEV_IT8172) += it8172.o -obj-$(CONFIG_BLK_DEV_IT8213) += it8213.o -obj-$(CONFIG_BLK_DEV_IT821X) += it821x.o -obj-$(CONFIG_BLK_DEV_JMICRON) += jmicron.o -obj-$(CONFIG_BLK_DEV_NS87415) += ns87415.o -obj-$(CONFIG_BLK_DEV_OPTI621) += opti621.o -obj-$(CONFIG_BLK_DEV_PDC202XX_OLD) += pdc202xx_old.o -obj-$(CONFIG_BLK_DEV_PDC202XX_NEW) += pdc202xx_new.o -obj-$(CONFIG_BLK_DEV_PIIX) += piix.o -obj-$(CONFIG_BLK_DEV_RZ1000) += rz1000.o -obj-$(CONFIG_BLK_DEV_SVWKS) += serverworks.o -obj-$(CONFIG_BLK_DEV_SIIMAGE) += siimage.o -obj-$(CONFIG_BLK_DEV_SIS5513) += sis5513.o -obj-$(CONFIG_BLK_DEV_SL82C105) += sl82c105.o -obj-$(CONFIG_BLK_DEV_SLC90E66) += slc90e66.o -obj-$(CONFIG_BLK_DEV_TC86C001) += tc86c001.o -obj-$(CONFIG_BLK_DEV_TRIFLEX) += triflex.o -obj-$(CONFIG_BLK_DEV_TRM290) += trm290.o -obj-$(CONFIG_BLK_DEV_VIA82CXXX) += via82cxxx.o - -# Must appear at the end of the block -obj-$(CONFIG_BLK_DEV_GENERIC) += ide-pci-generic.o - -obj-$(CONFIG_IDEPCI_PCIBUS_ORDER) += ide-scan-pci.o - -obj-$(CONFIG_BLK_DEV_CMD640) += cmd640.o - -obj-$(CONFIG_BLK_DEV_IDE_PMAC) += pmac.o - -obj-$(CONFIG_IDE_GENERIC) += ide-generic.o -obj-$(CONFIG_BLK_DEV_IDEPNP) += ide-pnp.o - -ide-gd_mod-y += ide-gd.o -ide-cd_mod-y += ide-cd.o ide-cd_ioctl.o ide-cd_verbose.o - -ifeq ($(CONFIG_IDE_GD_ATA), y) - ide-gd_mod-y += ide-disk.o ide-disk_ioctl.o -ifeq ($(CONFIG_IDE_PROC_FS), y) - ide-gd_mod-y += ide-disk_proc.o -endif -endif - -ifeq ($(CONFIG_IDE_GD_ATAPI), y) - ide-gd_mod-y += ide-floppy.o ide-floppy_ioctl.o -ifeq ($(CONFIG_IDE_PROC_FS), y) - ide-gd_mod-y += ide-floppy_proc.o -endif -endif - -obj-$(CONFIG_IDE_GD) += ide-gd_mod.o -obj-$(CONFIG_BLK_DEV_IDECD) += ide-cd_mod.o -obj-$(CONFIG_BLK_DEV_IDETAPE) += ide-tape.o - -obj-$(CONFIG_BLK_DEV_IDECS) += ide-cs.o - -obj-$(CONFIG_BLK_DEV_PLATFORM) += ide_platform.o - -obj-$(CONFIG_BLK_DEV_IDE_ICSIDE) += icside.o -obj-$(CONFIG_BLK_DEV_IDE_RAPIDE) += rapide.o -obj-$(CONFIG_BLK_DEV_PALMCHIP_BK3710) += palm_bk3710.o - -obj-$(CONFIG_BLK_DEV_IDE_TX4938) += tx4938ide.o -obj-$(CONFIG_BLK_DEV_IDE_TX4939) += tx4939ide.o diff --git a/drivers/ide/aec62xx.c b/drivers/ide/aec62xx.c deleted file mode 100644 index 4c959ce41ba9..000000000000 --- a/drivers/ide/aec62xx.c +++ /dev/null @@ -1,331 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com> - * - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#include <asm/io.h> - -#define DRV_NAME "aec62xx" - -struct chipset_bus_clock_list_entry { - u8 xfer_speed; - u8 chipset_settings; - u8 ultra_settings; -}; - -static const struct chipset_bus_clock_list_entry aec6xxx_33_base [] = { - { XFER_UDMA_6, 0x31, 0x07 }, - { XFER_UDMA_5, 0x31, 0x06 }, - { XFER_UDMA_4, 0x31, 0x05 }, - { XFER_UDMA_3, 0x31, 0x04 }, - { XFER_UDMA_2, 0x31, 0x03 }, - { XFER_UDMA_1, 0x31, 0x02 }, - { XFER_UDMA_0, 0x31, 0x01 }, - - { XFER_MW_DMA_2, 0x31, 0x00 }, - { XFER_MW_DMA_1, 0x31, 0x00 }, - { XFER_MW_DMA_0, 0x0a, 0x00 }, - { XFER_PIO_4, 0x31, 0x00 }, - { XFER_PIO_3, 0x33, 0x00 }, - { XFER_PIO_2, 0x08, 0x00 }, - { XFER_PIO_1, 0x0a, 0x00 }, - { XFER_PIO_0, 0x00, 0x00 }, - { 0, 0x00, 0x00 } -}; - -static const struct chipset_bus_clock_list_entry aec6xxx_34_base [] = { - { XFER_UDMA_6, 0x41, 0x06 }, - { XFER_UDMA_5, 0x41, 0x05 }, - { XFER_UDMA_4, 0x41, 0x04 }, - { XFER_UDMA_3, 0x41, 0x03 }, - { XFER_UDMA_2, 0x41, 0x02 }, - { XFER_UDMA_1, 0x41, 0x01 }, - { XFER_UDMA_0, 0x41, 0x01 }, - - { XFER_MW_DMA_2, 0x41, 0x00 }, - { XFER_MW_DMA_1, 0x42, 0x00 }, - { XFER_MW_DMA_0, 0x7a, 0x00 }, - { XFER_PIO_4, 0x41, 0x00 }, - { XFER_PIO_3, 0x43, 0x00 }, - { XFER_PIO_2, 0x78, 0x00 }, - { XFER_PIO_1, 0x7a, 0x00 }, - { XFER_PIO_0, 0x70, 0x00 }, - { 0, 0x00, 0x00 } -}; - -/* - * TO DO: active tuning and correction of cards without a bios. - */ -static u8 pci_bus_clock_list (u8 speed, struct chipset_bus_clock_list_entry * chipset_table) -{ - for ( ; chipset_table->xfer_speed ; chipset_table++) - if (chipset_table->xfer_speed == speed) { - return chipset_table->chipset_settings; - } - return chipset_table->chipset_settings; -} - -static u8 pci_bus_clock_list_ultra (u8 speed, struct chipset_bus_clock_list_entry * chipset_table) -{ - for ( ; chipset_table->xfer_speed ; chipset_table++) - if (chipset_table->xfer_speed == speed) { - return chipset_table->ultra_settings; - } - return chipset_table->ultra_settings; -} - -static void aec6210_set_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct ide_host *host = pci_get_drvdata(dev); - struct chipset_bus_clock_list_entry *bus_clock = host->host_priv; - u16 d_conf = 0; - u8 ultra = 0, ultra_conf = 0; - u8 tmp0 = 0, tmp1 = 0, tmp2 = 0; - const u8 speed = drive->dma_mode; - unsigned long flags; - - local_irq_save(flags); - /* 0x40|(2*drive->dn): Active, 0x41|(2*drive->dn): Recovery */ - pci_read_config_word(dev, 0x40|(2*drive->dn), &d_conf); - tmp0 = pci_bus_clock_list(speed, bus_clock); - d_conf = ((tmp0 & 0xf0) << 4) | (tmp0 & 0xf); - pci_write_config_word(dev, 0x40|(2*drive->dn), d_conf); - - tmp1 = 0x00; - tmp2 = 0x00; - pci_read_config_byte(dev, 0x54, &ultra); - tmp1 = ((0x00 << (2*drive->dn)) | (ultra & ~(3 << (2*drive->dn)))); - ultra_conf = pci_bus_clock_list_ultra(speed, bus_clock); - tmp2 = ((ultra_conf << (2*drive->dn)) | (tmp1 & ~(3 << (2*drive->dn)))); - pci_write_config_byte(dev, 0x54, tmp2); - local_irq_restore(flags); -} - -static void aec6260_set_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct ide_host *host = pci_get_drvdata(dev); - struct chipset_bus_clock_list_entry *bus_clock = host->host_priv; - u8 unit = drive->dn & 1; - u8 tmp1 = 0, tmp2 = 0; - u8 ultra = 0, drive_conf = 0, ultra_conf = 0; - const u8 speed = drive->dma_mode; - unsigned long flags; - - local_irq_save(flags); - /* high 4-bits: Active, low 4-bits: Recovery */ - pci_read_config_byte(dev, 0x40|drive->dn, &drive_conf); - drive_conf = pci_bus_clock_list(speed, bus_clock); - pci_write_config_byte(dev, 0x40|drive->dn, drive_conf); - - pci_read_config_byte(dev, (0x44|hwif->channel), &ultra); - tmp1 = ((0x00 << (4*unit)) | (ultra & ~(7 << (4*unit)))); - ultra_conf = pci_bus_clock_list_ultra(speed, bus_clock); - tmp2 = ((ultra_conf << (4*unit)) | (tmp1 & ~(7 << (4*unit)))); - pci_write_config_byte(dev, (0x44|hwif->channel), tmp2); - local_irq_restore(flags); -} - -static void aec_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - drive->dma_mode = drive->pio_mode; - hwif->port_ops->set_dma_mode(hwif, drive); -} - -static int init_chipset_aec62xx(struct pci_dev *dev) -{ - /* These are necessary to get AEC6280 Macintosh cards to work */ - if ((dev->device == PCI_DEVICE_ID_ARTOP_ATP865) || - (dev->device == PCI_DEVICE_ID_ARTOP_ATP865R)) { - u8 reg49h = 0, reg4ah = 0; - /* Clear reset and test bits. */ - pci_read_config_byte(dev, 0x49, ®49h); - pci_write_config_byte(dev, 0x49, reg49h & ~0x30); - /* Enable chip interrupt output. */ - pci_read_config_byte(dev, 0x4a, ®4ah); - pci_write_config_byte(dev, 0x4a, reg4ah & ~0x01); - /* Enable burst mode. */ - pci_read_config_byte(dev, 0x4a, ®4ah); - pci_write_config_byte(dev, 0x4a, reg4ah | 0x80); - } - - return 0; -} - -static u8 atp86x_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 ata66 = 0, mask = hwif->channel ? 0x02 : 0x01; - - pci_read_config_byte(dev, 0x49, &ata66); - - return (ata66 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80; -} - -static const struct ide_port_ops atp850_port_ops = { - .set_pio_mode = aec_set_pio_mode, - .set_dma_mode = aec6210_set_mode, -}; - -static const struct ide_port_ops atp86x_port_ops = { - .set_pio_mode = aec_set_pio_mode, - .set_dma_mode = aec6260_set_mode, - .cable_detect = atp86x_cable_detect, -}; - -static const struct ide_port_info aec62xx_chipsets[] = { - { /* 0: AEC6210 */ - .name = DRV_NAME, - .init_chipset = init_chipset_aec62xx, - .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, - .port_ops = &atp850_port_ops, - .host_flags = IDE_HFLAG_SERIALIZE | - IDE_HFLAG_NO_ATAPI_DMA | - IDE_HFLAG_NO_DSC | - IDE_HFLAG_OFF_BOARD, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA2, - }, - { /* 1: AEC6260 */ - .name = DRV_NAME, - .init_chipset = init_chipset_aec62xx, - .port_ops = &atp86x_port_ops, - .host_flags = IDE_HFLAG_NO_ATAPI_DMA | IDE_HFLAG_NO_AUTODMA | - IDE_HFLAG_OFF_BOARD, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA4, - }, - { /* 2: AEC6260R */ - .name = DRV_NAME, - .init_chipset = init_chipset_aec62xx, - .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, - .port_ops = &atp86x_port_ops, - .host_flags = IDE_HFLAG_NO_ATAPI_DMA | - IDE_HFLAG_NON_BOOTABLE, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA4, - }, - { /* 3: AEC6280 */ - .name = DRV_NAME, - .init_chipset = init_chipset_aec62xx, - .port_ops = &atp86x_port_ops, - .host_flags = IDE_HFLAG_NO_ATAPI_DMA | - IDE_HFLAG_OFF_BOARD, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA5, - }, - { /* 4: AEC6280R */ - .name = DRV_NAME, - .init_chipset = init_chipset_aec62xx, - .enablebits = {{0x4a,0x02,0x02}, {0x4a,0x04,0x04}}, - .port_ops = &atp86x_port_ops, - .host_flags = IDE_HFLAG_NO_ATAPI_DMA | - IDE_HFLAG_OFF_BOARD, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA5, - } -}; - -/** - * aec62xx_init_one - called when a AEC is found - * @dev: the aec62xx device - * @id: the matching pci id - * - * Called when the PCI registration layer (or the IDE initialization) - * finds a device matching our IDE device tables. - * - * NOTE: since we're going to modify the 'name' field for AEC-6[26]80[R] - * chips, pass a local copy of 'struct ide_port_info' down the call chain. - */ - -static int aec62xx_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - const struct chipset_bus_clock_list_entry *bus_clock; - struct ide_port_info d; - u8 idx = id->driver_data; - int bus_speed = ide_pci_clk ? ide_pci_clk : 33; - int err; - - if (bus_speed <= 33) - bus_clock = aec6xxx_33_base; - else - bus_clock = aec6xxx_34_base; - - err = pci_enable_device(dev); - if (err) - return err; - - d = aec62xx_chipsets[idx]; - - if (idx == 3 || idx == 4) { - unsigned long dma_base = pci_resource_start(dev, 4); - - if (inb(dma_base + 2) & 0x10) { - printk(KERN_INFO DRV_NAME " %s: AEC6880%s card detected" - "\n", pci_name(dev), (idx == 4) ? "R" : ""); - d.udma_mask = ATA_UDMA6; - } - } - - err = ide_pci_init_one(dev, &d, (void *)bus_clock); - if (err) - pci_disable_device(dev); - - return err; -} - -static void aec62xx_remove(struct pci_dev *dev) -{ - ide_pci_remove(dev); - pci_disable_device(dev); -} - -static const struct pci_device_id aec62xx_pci_tbl[] = { - { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP850UF), 0 }, - { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860), 1 }, - { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP860R), 2 }, - { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865), 3 }, - { PCI_VDEVICE(ARTOP, PCI_DEVICE_ID_ARTOP_ATP865R), 4 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, aec62xx_pci_tbl); - -static struct pci_driver aec62xx_pci_driver = { - .name = "AEC62xx_IDE", - .id_table = aec62xx_pci_tbl, - .probe = aec62xx_init_one, - .remove = aec62xx_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init aec62xx_ide_init(void) -{ - return ide_pci_register_driver(&aec62xx_pci_driver); -} - -static void __exit aec62xx_ide_exit(void) -{ - pci_unregister_driver(&aec62xx_pci_driver); -} - -module_init(aec62xx_ide_init); -module_exit(aec62xx_ide_exit); - -MODULE_AUTHOR("Andre Hedrick"); -MODULE_DESCRIPTION("PCI driver module for ARTOP AEC62xx IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/ali14xx.c b/drivers/ide/ali14xx.c deleted file mode 100644 index 3268931c2c7a..000000000000 --- a/drivers/ide/ali14xx.c +++ /dev/null @@ -1,250 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1996 Linus Torvalds & author (see below) - */ - -/* - * ALI M14xx chipset EIDE controller - * - * Works for ALI M1439/1443/1445/1487/1489 chipsets. - * - * Adapted from code developed by derekn@vw.ece.cmu.edu. -ml - * Derek's notes follow: - * - * I think the code should be pretty understandable, - * but I'll be happy to (try to) answer questions. - * - * The critical part is in the setupDrive function. The initRegisters - * function doesn't seem to be necessary, but the DOS driver does it, so - * I threw it in. - * - * I've only tested this on my system, which only has one disk. I posted - * it to comp.sys.linux.hardware, so maybe some other people will try it - * out. - * - * Derek Noonburg (derekn@ece.cmu.edu) - * 95-sep-26 - * - * Update 96-jul-13: - * - * I've since upgraded to two disks and a CD-ROM, with no trouble, and - * I've also heard from several others who have used it successfully. - * This driver appears to work with both the 1443/1445 and the 1487/1489 - * chipsets. I've added support for PIO mode 4 for the 1487. This - * seems to work just fine on the 1443 also, although I'm not sure it's - * advertised as supporting mode 4. (I've been running a WDC AC21200 in - * mode 4 for a while now with no trouble.) -Derek - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/ioport.h> -#include <linux/blkdev.h> -#include <linux/ide.h> -#include <linux/init.h> - -#include <asm/io.h> - -#define DRV_NAME "ali14xx" - -/* port addresses for auto-detection */ -#define ALI_NUM_PORTS 4 -static const int ports[ALI_NUM_PORTS] __initconst = - { 0x074, 0x0f4, 0x034, 0x0e4 }; - -/* register initialization data */ -typedef struct { u8 reg, data; } RegInitializer; - -static const RegInitializer initData[] __initconst = { - {0x01, 0x0f}, {0x02, 0x00}, {0x03, 0x00}, {0x04, 0x00}, - {0x05, 0x00}, {0x06, 0x00}, {0x07, 0x2b}, {0x0a, 0x0f}, - {0x25, 0x00}, {0x26, 0x00}, {0x27, 0x00}, {0x28, 0x00}, - {0x29, 0x00}, {0x2a, 0x00}, {0x2f, 0x00}, {0x2b, 0x00}, - {0x2c, 0x00}, {0x2d, 0x00}, {0x2e, 0x00}, {0x30, 0x00}, - {0x31, 0x00}, {0x32, 0x00}, {0x33, 0x00}, {0x34, 0xff}, - {0x35, 0x03}, {0x00, 0x00} -}; - -/* timing parameter registers for each drive */ -static struct { u8 reg1, reg2, reg3, reg4; } regTab[4] = { - {0x03, 0x26, 0x04, 0x27}, /* drive 0 */ - {0x05, 0x28, 0x06, 0x29}, /* drive 1 */ - {0x2b, 0x30, 0x2c, 0x31}, /* drive 2 */ - {0x2d, 0x32, 0x2e, 0x33}, /* drive 3 */ -}; - -static int basePort; /* base port address */ -static int regPort; /* port for register number */ -static int dataPort; /* port for register data */ -static u8 regOn; /* output to base port to access registers */ -static u8 regOff; /* output to base port to close registers */ - -/*------------------------------------------------------------------------*/ - -/* - * Read a controller register. - */ -static inline u8 inReg(u8 reg) -{ - outb_p(reg, regPort); - return inb(dataPort); -} - -/* - * Write a controller register. - */ -static void outReg(u8 data, u8 reg) -{ - outb_p(reg, regPort); - outb_p(data, dataPort); -} - -static DEFINE_SPINLOCK(ali14xx_lock); - -/* - * Set PIO mode for the specified drive. - * This function computes timing parameters - * and sets controller registers accordingly. - */ -static void ali14xx_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - int driveNum; - int time1, time2; - u8 param1, param2, param3, param4; - unsigned long flags; - int bus_speed = ide_vlb_clk ? ide_vlb_clk : 50; - const u8 pio = drive->pio_mode - XFER_PIO_0; - struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); - - /* calculate timing, according to PIO mode */ - time1 = ide_pio_cycle_time(drive, pio); - time2 = t->active; - param3 = param1 = (time2 * bus_speed + 999) / 1000; - param4 = param2 = (time1 * bus_speed + 999) / 1000 - param1; - if (pio < 3) { - param3 += 8; - param4 += 8; - } - printk(KERN_DEBUG "%s: PIO mode%d, t1=%dns, t2=%dns, cycles = %d+%d, %d+%d\n", - drive->name, pio, time1, time2, param1, param2, param3, param4); - - /* stuff timing parameters into controller registers */ - driveNum = (drive->hwif->index << 1) + (drive->dn & 1); - spin_lock_irqsave(&ali14xx_lock, flags); - outb_p(regOn, basePort); - outReg(param1, regTab[driveNum].reg1); - outReg(param2, regTab[driveNum].reg2); - outReg(param3, regTab[driveNum].reg3); - outReg(param4, regTab[driveNum].reg4); - outb_p(regOff, basePort); - spin_unlock_irqrestore(&ali14xx_lock, flags); -} - -/* - * Auto-detect the IDE controller port. - */ -static int __init findPort(void) -{ - int i; - u8 t; - unsigned long flags; - - local_irq_save(flags); - for (i = 0; i < ALI_NUM_PORTS; ++i) { - basePort = ports[i]; - regOff = inb(basePort); - for (regOn = 0x30; regOn <= 0x33; ++regOn) { - outb_p(regOn, basePort); - if (inb(basePort) == regOn) { - regPort = basePort + 4; - dataPort = basePort + 8; - t = inReg(0) & 0xf0; - outb_p(regOff, basePort); - local_irq_restore(flags); - if (t != 0x50) - return 0; - return 1; /* success */ - } - } - outb_p(regOff, basePort); - } - local_irq_restore(flags); - return 0; -} - -/* - * Initialize controller registers with default values. - */ -static int __init initRegisters(void) -{ - const RegInitializer *p; - u8 t; - unsigned long flags; - - local_irq_save(flags); - outb_p(regOn, basePort); - for (p = initData; p->reg != 0; ++p) - outReg(p->data, p->reg); - outb_p(0x01, regPort); - t = inb(regPort) & 0x01; - outb_p(regOff, basePort); - local_irq_restore(flags); - return t; -} - -static const struct ide_port_ops ali14xx_port_ops = { - .set_pio_mode = ali14xx_set_pio_mode, -}; - -static const struct ide_port_info ali14xx_port_info = { - .name = DRV_NAME, - .chipset = ide_ali14xx, - .port_ops = &ali14xx_port_ops, - .host_flags = IDE_HFLAG_NO_DMA, - .pio_mask = ATA_PIO4, -}; - -static int __init ali14xx_probe(void) -{ - printk(KERN_DEBUG "ali14xx: base=0x%03x, regOn=0x%02x.\n", - basePort, regOn); - - /* initialize controller registers */ - if (!initRegisters()) { - printk(KERN_ERR "ali14xx: Chip initialization failed.\n"); - return 1; - } - - return ide_legacy_device_add(&ali14xx_port_info, 0); -} - -static bool probe_ali14xx; - -module_param_named(probe, probe_ali14xx, bool, 0); -MODULE_PARM_DESC(probe, "probe for ALI M14xx chipsets"); - -static int __init ali14xx_init(void) -{ - if (probe_ali14xx == 0) - goto out; - - /* auto-detect IDE controller port */ - if (findPort()) { - if (ali14xx_probe()) - return -ENODEV; - return 0; - } - printk(KERN_ERR "ali14xx: not found.\n"); -out: - return -ENODEV; -} - -module_init(ali14xx_init); - -MODULE_AUTHOR("see local file"); -MODULE_DESCRIPTION("support of ALI 14XX IDE chipsets"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c deleted file mode 100644 index 3265970aee34..000000000000 --- a/drivers/ide/alim15x3.c +++ /dev/null @@ -1,602 +0,0 @@ -/* - * Copyright (C) 1998-2000 Michel Aubry, Maintainer - * Copyright (C) 1998-2000 Andrzej Krzysztofowicz, Maintainer - * Copyright (C) 1999-2000 CJ, cjtsai@ali.com.tw, Maintainer - * - * Copyright (C) 1998-2000 Andre Hedrick (andre@linux-ide.org) - * May be copied or modified under the terms of the GNU General Public License - * Copyright (C) 2002 Alan Cox - * ALi (now ULi M5228) support by Clear Zhang <Clear.Zhang@ali.com.tw> - * Copyright (C) 2007 MontaVista Software, Inc. <source@mvista.com> - * Copyright (C) 2007-2010 Bartlomiej Zolnierkiewicz - * - * (U)DMA capable version of ali 1533/1543(C), 1535(D) - * - ********************************************************************** - * 9/7/99 --Parts from the above author are included and need to be - * converted into standard interface, once I finish the thought. - * - * Recent changes - * Don't use LBA48 mode on ALi <= 0xC4 - * Don't poke 0x79 with a non ALi northbridge - * Don't flip undefined bits on newer chipsets (fix Fujitsu laptop hang) - * Allow UDMA6 on revisions > 0xC4 - * - * Documentation - * Chipset documentation available under NDA only - * - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> -#include <linux/dmi.h> - -#include <asm/io.h> - -#define DRV_NAME "alim15x3" - -/* - * ALi devices are not plug in. Otherwise these static values would - * need to go. They ought to go away anyway - */ - -static u8 m5229_revision; -static u8 chip_is_1543c_e; -static struct pci_dev *isa_dev; - -static void ali_fifo_control(ide_hwif_t *hwif, ide_drive_t *drive, int on) -{ - struct pci_dev *pdev = to_pci_dev(hwif->dev); - int pio_fifo = 0x54 + hwif->channel; - u8 fifo; - int shift = 4 * (drive->dn & 1); - - pci_read_config_byte(pdev, pio_fifo, &fifo); - fifo &= ~(0x0F << shift); - fifo |= (on << shift); - pci_write_config_byte(pdev, pio_fifo, fifo); -} - -static void ali_program_timings(ide_hwif_t *hwif, ide_drive_t *drive, - struct ide_timing *t, u8 ultra) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - int port = hwif->channel ? 0x5c : 0x58; - int udmat = 0x56 + hwif->channel; - u8 unit = drive->dn & 1, udma; - int shift = 4 * unit; - - /* Set up the UDMA */ - pci_read_config_byte(dev, udmat, &udma); - udma &= ~(0x0F << shift); - udma |= ultra << shift; - pci_write_config_byte(dev, udmat, udma); - - if (t == NULL) - return; - - t->setup = clamp_val(t->setup, 1, 8) & 7; - t->act8b = clamp_val(t->act8b, 1, 8) & 7; - t->rec8b = clamp_val(t->rec8b, 1, 16) & 15; - t->active = clamp_val(t->active, 1, 8) & 7; - t->recover = clamp_val(t->recover, 1, 16) & 15; - - pci_write_config_byte(dev, port, t->setup); - pci_write_config_byte(dev, port + 1, (t->act8b << 4) | t->rec8b); - pci_write_config_byte(dev, port + unit + 2, - (t->active << 4) | t->recover); -} - -/** - * ali_set_pio_mode - set host controller for PIO mode - * @hwif: port - * @drive: drive - * - * Program the controller for the given PIO mode. - */ - -static void ali_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - ide_drive_t *pair = ide_get_pair_dev(drive); - int bus_speed = ide_pci_clk ? ide_pci_clk : 33; - unsigned long T = 1000000 / bus_speed; /* PCI clock based */ - struct ide_timing t; - - ide_timing_compute(drive, drive->pio_mode, &t, T, 1); - if (pair) { - struct ide_timing p; - - ide_timing_compute(pair, pair->pio_mode, &p, T, 1); - ide_timing_merge(&p, &t, &t, - IDE_TIMING_SETUP | IDE_TIMING_8BIT); - if (pair->dma_mode) { - ide_timing_compute(pair, pair->dma_mode, &p, T, 1); - ide_timing_merge(&p, &t, &t, - IDE_TIMING_SETUP | IDE_TIMING_8BIT); - } - } - - /* - * PIO mode => ATA FIFO on, ATAPI FIFO off - */ - ali_fifo_control(hwif, drive, (drive->media == ide_disk) ? 0x05 : 0x00); - - ali_program_timings(hwif, drive, &t, 0); -} - -/** - * ali_udma_filter - compute UDMA mask - * @drive: IDE device - * - * Return available UDMA modes. - * - * The actual rules for the ALi are: - * No UDMA on revisions <= 0x20 - * Disk only for revisions < 0xC2 - * Not WDC drives on M1543C-E (?) - */ - -static u8 ali_udma_filter(ide_drive_t *drive) -{ - if (m5229_revision > 0x20 && m5229_revision < 0xC2) { - if (drive->media != ide_disk) - return 0; - if (chip_is_1543c_e && - strstr((char *)&drive->id[ATA_ID_PROD], "WDC ")) - return 0; - } - - return drive->hwif->ultra_mask; -} - -/** - * ali_set_dma_mode - set host controller for DMA mode - * @hwif: port - * @drive: drive - * - * Configure the hardware for the desired IDE transfer mode. - */ - -static void ali_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - static u8 udma_timing[7] = { 0xC, 0xB, 0xA, 0x9, 0x8, 0xF, 0xD }; - struct pci_dev *dev = to_pci_dev(hwif->dev); - ide_drive_t *pair = ide_get_pair_dev(drive); - int bus_speed = ide_pci_clk ? ide_pci_clk : 33; - unsigned long T = 1000000 / bus_speed; /* PCI clock based */ - const u8 speed = drive->dma_mode; - u8 tmpbyte = 0x00; - struct ide_timing t; - - if (speed < XFER_UDMA_0) { - ide_timing_compute(drive, drive->dma_mode, &t, T, 1); - if (pair) { - struct ide_timing p; - - ide_timing_compute(pair, pair->pio_mode, &p, T, 1); - ide_timing_merge(&p, &t, &t, - IDE_TIMING_SETUP | IDE_TIMING_8BIT); - if (pair->dma_mode) { - ide_timing_compute(pair, pair->dma_mode, - &p, T, 1); - ide_timing_merge(&p, &t, &t, - IDE_TIMING_SETUP | IDE_TIMING_8BIT); - } - } - ali_program_timings(hwif, drive, &t, 0); - } else { - ali_program_timings(hwif, drive, NULL, - udma_timing[speed - XFER_UDMA_0]); - if (speed >= XFER_UDMA_3) { - pci_read_config_byte(dev, 0x4b, &tmpbyte); - tmpbyte |= 1; - pci_write_config_byte(dev, 0x4b, tmpbyte); - } - } -} - -/** - * ali_dma_check - DMA check - * @drive: target device - * @cmd: command - * - * Returns 1 if the DMA cannot be performed, zero on success. - */ - -static int ali_dma_check(ide_drive_t *drive, struct ide_cmd *cmd) -{ - if (m5229_revision < 0xC2 && drive->media != ide_disk) { - if (cmd->tf_flags & IDE_TFLAG_WRITE) - return 1; /* try PIO instead of DMA */ - } - return 0; -} - -/** - * init_chipset_ali15x3 - Initialise an ALi IDE controller - * @dev: PCI device - * - * This function initializes the ALI IDE controller and where - * appropriate also sets up the 1533 southbridge. - */ - -static int init_chipset_ali15x3(struct pci_dev *dev) -{ - unsigned long flags; - u8 tmpbyte; - struct pci_dev *north = pci_get_slot(dev->bus, PCI_DEVFN(0,0)); - - m5229_revision = dev->revision; - - isa_dev = pci_get_device(PCI_VENDOR_ID_AL, PCI_DEVICE_ID_AL_M1533, NULL); - - local_irq_save(flags); - - if (m5229_revision < 0xC2) { - /* - * revision 0x20 (1543-E, 1543-F) - * revision 0xC0, 0xC1 (1543C-C, 1543C-D, 1543C-E) - * clear CD-ROM DMA write bit, m5229, 0x4b, bit 7 - */ - pci_read_config_byte(dev, 0x4b, &tmpbyte); - /* - * clear bit 7 - */ - pci_write_config_byte(dev, 0x4b, tmpbyte & 0x7F); - /* - * check m1533, 0x5e, bit 1~4 == 1001 => & 00011110 = 00010010 - */ - if (m5229_revision >= 0x20 && isa_dev) { - pci_read_config_byte(isa_dev, 0x5e, &tmpbyte); - chip_is_1543c_e = ((tmpbyte & 0x1e) == 0x12) ? 1: 0; - } - goto out; - } - - /* - * 1543C-B?, 1535, 1535D, 1553 - * Note 1: not all "motherboard" support this detection - * Note 2: if no udma 66 device, the detection may "error". - * but in this case, we will not set the device to - * ultra 66, the detection result is not important - */ - - /* - * enable "Cable Detection", m5229, 0x4b, bit3 - */ - pci_read_config_byte(dev, 0x4b, &tmpbyte); - pci_write_config_byte(dev, 0x4b, tmpbyte | 0x08); - - /* - * We should only tune the 1533 enable if we are using an ALi - * North bridge. We might have no north found on some zany - * box without a device at 0:0.0. The ALi bridge will be at - * 0:0.0 so if we didn't find one we know what is cooking. - */ - if (north && north->vendor != PCI_VENDOR_ID_AL) - goto out; - - if (m5229_revision < 0xC5 && isa_dev) - { - /* - * set south-bridge's enable bit, m1533, 0x79 - */ - - pci_read_config_byte(isa_dev, 0x79, &tmpbyte); - if (m5229_revision == 0xC2) { - /* - * 1543C-B0 (m1533, 0x79, bit 2) - */ - pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04); - } else if (m5229_revision >= 0xC3) { - /* - * 1553/1535 (m1533, 0x79, bit 1) - */ - pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02); - } - } - -out: - /* - * CD_ROM DMA on (m5229, 0x53, bit0) - * Enable this bit even if we want to use PIO. - * PIO FIFO off (m5229, 0x53, bit1) - * The hardware will use 0x54h and 0x55h to control PIO FIFO. - * (Not on later devices it seems) - * - * 0x53 changes meaning on later revs - we must no touch - * bit 1 on them. Need to check if 0x20 is the right break. - */ - if (m5229_revision >= 0x20) { - pci_read_config_byte(dev, 0x53, &tmpbyte); - - if (m5229_revision <= 0x20) - tmpbyte = (tmpbyte & (~0x02)) | 0x01; - else if (m5229_revision == 0xc7 || m5229_revision == 0xc8) - tmpbyte |= 0x03; - else - tmpbyte |= 0x01; - - pci_write_config_byte(dev, 0x53, tmpbyte); - } - local_irq_restore(flags); - pci_dev_put(north); - pci_dev_put(isa_dev); - return 0; -} - -/* - * Cable special cases - */ - -static const struct dmi_system_id cable_dmi_table[] = { - { - .ident = "HP Pavilion N5430", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_BOARD_VERSION, "OmniBook N32N-736"), - }, - }, - { - .ident = "Toshiba Satellite S1800-814", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), - DMI_MATCH(DMI_PRODUCT_NAME, "S1800-814"), - }, - }, - { } -}; - -static int ali_cable_override(struct pci_dev *pdev) -{ - /* Fujitsu P2000 */ - if (pdev->subsystem_vendor == 0x10CF && - pdev->subsystem_device == 0x10AF) - return 1; - - /* Mitac 8317 (Winbook-A) and relatives */ - if (pdev->subsystem_vendor == 0x1071 && - pdev->subsystem_device == 0x8317) - return 1; - - /* Systems by DMI */ - if (dmi_check_system(cable_dmi_table)) - return 1; - - return 0; -} - -/** - * ali_cable_detect - cable detection - * @hwif: IDE interface - * - * This checks if the controller and the cable are capable - * of UDMA66 transfers. It doesn't check the drives. - */ - -static u8 ali_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 cbl = ATA_CBL_PATA40, tmpbyte; - - if (m5229_revision >= 0xC2) { - /* - * m5229 80-pin cable detection (from Host View) - * - * 0x4a bit0 is 0 => primary channel has 80-pin - * 0x4a bit1 is 0 => secondary channel has 80-pin - * - * Certain laptops use short but suitable cables - * and don't implement the detect logic. - */ - if (ali_cable_override(dev)) - cbl = ATA_CBL_PATA40_SHORT; - else { - pci_read_config_byte(dev, 0x4a, &tmpbyte); - if ((tmpbyte & (1 << hwif->channel)) == 0) - cbl = ATA_CBL_PATA80; - } - } - - return cbl; -} - -#ifndef CONFIG_SPARC64 -/** - * init_hwif_ali15x3 - Initialize the ALI IDE x86 stuff - * @hwif: interface to configure - * - * Obtain the IRQ tables for an ALi based IDE solution on the PC - * class platforms. This part of the code isn't applicable to the - * Sparc systems. - */ - -static void init_hwif_ali15x3(ide_hwif_t *hwif) -{ - u8 ideic, inmir; - s8 irq_routing_table[] = { -1, 9, 3, 10, 4, 5, 7, 6, - 1, 11, 0, 12, 0, 14, 0, 15 }; - int irq = -1; - - if (isa_dev) { - /* - * read IDE interface control - */ - pci_read_config_byte(isa_dev, 0x58, &ideic); - - /* bit0, bit1 */ - ideic = ideic & 0x03; - - /* get IRQ for IDE Controller */ - if ((hwif->channel && ideic == 0x03) || - (!hwif->channel && !ideic)) { - /* - * get SIRQ1 routing table - */ - pci_read_config_byte(isa_dev, 0x44, &inmir); - inmir = inmir & 0x0f; - irq = irq_routing_table[inmir]; - } else if (hwif->channel && !(ideic & 0x01)) { - /* - * get SIRQ2 routing table - */ - pci_read_config_byte(isa_dev, 0x75, &inmir); - inmir = inmir & 0x0f; - irq = irq_routing_table[inmir]; - } - if(irq >= 0) - hwif->irq = irq; - } -} -#else -#define init_hwif_ali15x3 NULL -#endif /* CONFIG_SPARC64 */ - -/** - * init_dma_ali15x3 - set up DMA on ALi15x3 - * @hwif: IDE interface - * @d: IDE port info - * - * Set up the DMA functionality on the ALi 15x3. - */ - -static int init_dma_ali15x3(ide_hwif_t *hwif, const struct ide_port_info *d) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long base = ide_pci_dma_base(hwif, d); - - if (base == 0) - return -1; - - hwif->dma_base = base; - - if (ide_pci_check_simplex(hwif, d) < 0) - return -1; - - if (ide_pci_set_master(dev, d->name) < 0) - return -1; - - if (!hwif->channel) - outb(inb(base + 2) & 0x60, base + 2); - - printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n", - hwif->name, base, base + 7); - - if (ide_allocate_dma_engine(hwif)) - return -1; - - return 0; -} - -static const struct ide_port_ops ali_port_ops = { - .set_pio_mode = ali_set_pio_mode, - .set_dma_mode = ali_set_dma_mode, - .udma_filter = ali_udma_filter, - .cable_detect = ali_cable_detect, -}; - -static const struct ide_dma_ops ali_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = ide_dma_start, - .dma_end = ide_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_check = ali_dma_check, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = ide_dma_sff_read_status, -}; - -static const struct ide_port_info ali15x3_chipset = { - .name = DRV_NAME, - .init_chipset = init_chipset_ali15x3, - .init_hwif = init_hwif_ali15x3, - .init_dma = init_dma_ali15x3, - .port_ops = &ali_port_ops, - .dma_ops = &sff_dma_ops, - .pio_mask = ATA_PIO5, - .swdma_mask = ATA_SWDMA2, - .mwdma_mask = ATA_MWDMA2, -}; - -/** - * alim15x3_init_one - set up an ALi15x3 IDE controller - * @dev: PCI device to set up - * - * Perform the actual set up for an ALi15x3 that has been found by the - * hot plug layer. - */ - -static int alim15x3_init_one(struct pci_dev *dev, - const struct pci_device_id *id) -{ - struct ide_port_info d = ali15x3_chipset; - u8 rev = dev->revision, idx = id->driver_data; - - /* don't use LBA48 DMA on ALi devices before rev 0xC5 */ - if (rev <= 0xC4) - d.host_flags |= IDE_HFLAG_NO_LBA48_DMA; - - if (rev >= 0x20) { - if (rev == 0x20) - d.host_flags |= IDE_HFLAG_NO_ATAPI_DMA; - - if (rev < 0xC2) - d.udma_mask = ATA_UDMA2; - else if (rev == 0xC2 || rev == 0xC3) - d.udma_mask = ATA_UDMA4; - else if (rev == 0xC4) - d.udma_mask = ATA_UDMA5; - else - d.udma_mask = ATA_UDMA6; - - d.dma_ops = &ali_dma_ops; - } else { - d.host_flags |= IDE_HFLAG_NO_DMA; - - d.mwdma_mask = d.swdma_mask = 0; - } - - if (idx == 0) - d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX; - - return ide_pci_init_one(dev, &d, NULL); -} - - -static const struct pci_device_id alim15x3_pci_tbl[] = { - { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5229), 0 }, - { PCI_VDEVICE(AL, PCI_DEVICE_ID_AL_M5228), 1 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, alim15x3_pci_tbl); - -static struct pci_driver alim15x3_pci_driver = { - .name = "ALI15x3_IDE", - .id_table = alim15x3_pci_tbl, - .probe = alim15x3_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init ali15x3_ide_init(void) -{ - return ide_pci_register_driver(&alim15x3_pci_driver); -} - -static void __exit ali15x3_ide_exit(void) -{ - pci_unregister_driver(&alim15x3_pci_driver); -} - -module_init(ali15x3_ide_init); -module_exit(ali15x3_ide_exit); - -MODULE_AUTHOR("Michael Aubry, Andrzej Krzysztofowicz, CJ, Andre Hedrick, Alan Cox, Bartlomiej Zolnierkiewicz"); -MODULE_DESCRIPTION("PCI driver module for ALi 15x3 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/amd74xx.c b/drivers/ide/amd74xx.c deleted file mode 100644 index 7340597a373e..000000000000 --- a/drivers/ide/amd74xx.c +++ /dev/null @@ -1,343 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * AMD 755/756/766/8111 and nVidia nForce/2/2s/3/3s/CK804/MCP04 - * IDE driver for Linux. - * - * Copyright (c) 2000-2002 Vojtech Pavlik - * Copyright (c) 2007-2010 Bartlomiej Zolnierkiewicz - * - * Based on the work of: - * Andre Hedrick - */ - - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ide.h> - -#define DRV_NAME "amd74xx" - -enum { - AMD_IDE_CONFIG = 0x41, - AMD_CABLE_DETECT = 0x42, - AMD_DRIVE_TIMING = 0x48, - AMD_8BIT_TIMING = 0x4e, - AMD_ADDRESS_SETUP = 0x4c, - AMD_UDMA_TIMING = 0x50, -}; - -static unsigned int amd_80w; -static unsigned int amd_clock; - -static char *amd_dma[] = { "16", "25", "33", "44", "66", "100", "133" }; -static unsigned char amd_cyc2udma[] = { 6, 6, 5, 4, 0, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 7 }; - -static inline u8 amd_offset(struct pci_dev *dev) -{ - return (dev->vendor == PCI_VENDOR_ID_NVIDIA) ? 0x10 : 0; -} - -/* - * amd_set_speed() writes timing values to the chipset registers - */ - -static void amd_set_speed(struct pci_dev *dev, u8 dn, u8 udma_mask, - struct ide_timing *timing) -{ - u8 t = 0, offset = amd_offset(dev); - - pci_read_config_byte(dev, AMD_ADDRESS_SETUP + offset, &t); - t = (t & ~(3 << ((3 - dn) << 1))) | ((clamp_val(timing->setup, 1, 4) - 1) << ((3 - dn) << 1)); - pci_write_config_byte(dev, AMD_ADDRESS_SETUP + offset, t); - - pci_write_config_byte(dev, AMD_8BIT_TIMING + offset + (1 - (dn >> 1)), - ((clamp_val(timing->act8b, 1, 16) - 1) << 4) | (clamp_val(timing->rec8b, 1, 16) - 1)); - - pci_write_config_byte(dev, AMD_DRIVE_TIMING + offset + (3 - dn), - ((clamp_val(timing->active, 1, 16) - 1) << 4) | (clamp_val(timing->recover, 1, 16) - 1)); - - switch (udma_mask) { - case ATA_UDMA2: t = timing->udma ? (0xc0 | (clamp_val(timing->udma, 2, 5) - 2)) : 0x03; break; - case ATA_UDMA4: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 2, 10)]) : 0x03; break; - case ATA_UDMA5: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 1, 10)]) : 0x03; break; - case ATA_UDMA6: t = timing->udma ? (0xc0 | amd_cyc2udma[clamp_val(timing->udma, 1, 15)]) : 0x03; break; - default: return; - } - - if (timing->udma) - pci_write_config_byte(dev, AMD_UDMA_TIMING + offset + 3 - dn, t); -} - -/* - * amd_set_drive() computes timing values and configures the chipset - * to a desired transfer mode. It also can be called by upper layers. - */ - -static void amd_set_drive(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - ide_drive_t *peer = ide_get_pair_dev(drive); - struct ide_timing t, p; - int T, UT; - u8 udma_mask = hwif->ultra_mask; - const u8 speed = drive->dma_mode; - - T = 1000000000 / amd_clock; - UT = (udma_mask == ATA_UDMA2) ? T : (T / 2); - - ide_timing_compute(drive, speed, &t, T, UT); - - if (peer) { - ide_timing_compute(peer, peer->pio_mode, &p, T, UT); - ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT); - } - - if (speed == XFER_UDMA_5 && amd_clock <= 33333) t.udma = 1; - if (speed == XFER_UDMA_6 && amd_clock <= 33333) t.udma = 15; - - amd_set_speed(dev, drive->dn, udma_mask, &t); -} - -/* - * amd_set_pio_mode() is a callback from upper layers for PIO-only tuning. - */ - -static void amd_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - drive->dma_mode = drive->pio_mode; - amd_set_drive(hwif, drive); -} - -static void amd7409_cable_detect(struct pci_dev *dev) -{ - /* no host side cable detection */ - amd_80w = 0x03; -} - -static void amd7411_cable_detect(struct pci_dev *dev) -{ - int i; - u32 u = 0; - u8 t = 0, offset = amd_offset(dev); - - pci_read_config_byte(dev, AMD_CABLE_DETECT + offset, &t); - pci_read_config_dword(dev, AMD_UDMA_TIMING + offset, &u); - amd_80w = ((t & 0x3) ? 1 : 0) | ((t & 0xc) ? 2 : 0); - for (i = 24; i >= 0; i -= 8) - if (((u >> i) & 4) && !(amd_80w & (1 << (1 - (i >> 4))))) { - printk(KERN_WARNING DRV_NAME " %s: BIOS didn't set " - "cable bits correctly. Enabling workaround.\n", - pci_name(dev)); - amd_80w |= (1 << (1 - (i >> 4))); - } -} - -/* - * The initialization callback. Initialize drive independent registers. - */ - -static int init_chipset_amd74xx(struct pci_dev *dev) -{ - u8 t = 0, offset = amd_offset(dev); - -/* - * Check 80-wire cable presence. - */ - - if (dev->vendor == PCI_VENDOR_ID_AMD && - dev->device == PCI_DEVICE_ID_AMD_COBRA_7401) - ; /* no UDMA > 2 */ - else if (dev->vendor == PCI_VENDOR_ID_AMD && - dev->device == PCI_DEVICE_ID_AMD_VIPER_7409) - amd7409_cable_detect(dev); - else - amd7411_cable_detect(dev); - -/* - * Take care of prefetch & postwrite. - */ - - pci_read_config_byte(dev, AMD_IDE_CONFIG + offset, &t); - /* - * Check for broken FIFO support. - */ - if (dev->vendor == PCI_VENDOR_ID_AMD && - dev->device == PCI_DEVICE_ID_AMD_VIPER_7411) - t &= 0x0f; - else - t |= 0xf0; - pci_write_config_byte(dev, AMD_IDE_CONFIG + offset, t); - - return 0; -} - -static u8 amd_cable_detect(ide_hwif_t *hwif) -{ - if ((amd_80w >> hwif->channel) & 1) - return ATA_CBL_PATA80; - else - return ATA_CBL_PATA40; -} - -static const struct ide_port_ops amd_port_ops = { - .set_pio_mode = amd_set_pio_mode, - .set_dma_mode = amd_set_drive, - .cable_detect = amd_cable_detect, -}; - -#define IDE_HFLAGS_AMD \ - (IDE_HFLAG_PIO_NO_BLACKLIST | \ - IDE_HFLAG_POST_SET_MODE | \ - IDE_HFLAG_IO_32BIT | \ - IDE_HFLAG_UNMASK_IRQS) - -#define DECLARE_AMD_DEV(swdma, udma) \ - { \ - .name = DRV_NAME, \ - .init_chipset = init_chipset_amd74xx, \ - .enablebits = {{0x40,0x02,0x02}, {0x40,0x01,0x01}}, \ - .port_ops = &amd_port_ops, \ - .host_flags = IDE_HFLAGS_AMD, \ - .pio_mask = ATA_PIO5, \ - .swdma_mask = swdma, \ - .mwdma_mask = ATA_MWDMA2, \ - .udma_mask = udma, \ - } - -#define DECLARE_NV_DEV(udma) \ - { \ - .name = DRV_NAME, \ - .init_chipset = init_chipset_amd74xx, \ - .enablebits = {{0x50,0x02,0x02}, {0x50,0x01,0x01}}, \ - .port_ops = &amd_port_ops, \ - .host_flags = IDE_HFLAGS_AMD, \ - .pio_mask = ATA_PIO5, \ - .swdma_mask = ATA_SWDMA2, \ - .mwdma_mask = ATA_MWDMA2, \ - .udma_mask = udma, \ - } - -static const struct ide_port_info amd74xx_chipsets[] = { - /* 0: AMD7401 */ DECLARE_AMD_DEV(0x00, ATA_UDMA2), - /* 1: AMD7409 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA4), - /* 2: AMD7411/7441 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA5), - /* 3: AMD8111 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA6), - - /* 4: NFORCE */ DECLARE_NV_DEV(ATA_UDMA5), - /* 5: >= NFORCE2 */ DECLARE_NV_DEV(ATA_UDMA6), - - /* 6: AMD5536 */ DECLARE_AMD_DEV(ATA_SWDMA2, ATA_UDMA5), -}; - -static int amd74xx_probe(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct ide_port_info d; - u8 idx = id->driver_data; - - d = amd74xx_chipsets[idx]; - - /* - * Check for bad SWDMA and incorrectly wired Serenade mainboards. - */ - if (idx == 1) { - if (dev->revision <= 7) - d.swdma_mask = 0; - d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX; - } else if (idx == 3) { - if (dev->subsystem_vendor == PCI_VENDOR_ID_AMD && - dev->subsystem_device == PCI_DEVICE_ID_AMD_SERENADE) - d.udma_mask = ATA_UDMA5; - } - - /* - * It seems that on some nVidia controllers using AltStatus - * register can be unreliable so default to Status register - * if the device is in Compatibility Mode. - */ - if (dev->vendor == PCI_VENDOR_ID_NVIDIA && - ide_pci_is_in_compatibility_mode(dev)) - d.host_flags |= IDE_HFLAG_BROKEN_ALTSTATUS; - - printk(KERN_INFO "%s %s: UDMA%s controller\n", - d.name, pci_name(dev), amd_dma[fls(d.udma_mask) - 1]); - - /* - * Determine the system bus clock. - */ - amd_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; - - switch (amd_clock) { - case 33000: amd_clock = 33333; break; - case 37000: amd_clock = 37500; break; - case 41000: amd_clock = 41666; break; - } - - if (amd_clock < 20000 || amd_clock > 50000) { - printk(KERN_WARNING "%s: User given PCI clock speed impossible" - " (%d), using 33 MHz instead.\n", - d.name, amd_clock); - amd_clock = 33333; - } - - return ide_pci_init_one(dev, &d, NULL); -} - -static const struct pci_device_id amd74xx_pci_tbl[] = { - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_COBRA_7401), 0 }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_VIPER_7409), 1 }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_VIPER_7411), 2 }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_OPUS_7441), 2 }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_8111_IDE), 3 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_IDE), 4 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2_IDE), 5 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_IDE), 5 }, -#ifdef CONFIG_BLK_DEV_IDE_SATA - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2S_SATA), 5 }, -#endif - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3_IDE), 5 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_IDE), 5 }, -#ifdef CONFIG_BLK_DEV_IDE_SATA - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA), 5 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE3S_SATA2), 5 }, -#endif - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_CK804_IDE), 5 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP04_IDE), 5 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP51_IDE), 5 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP55_IDE), 5 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP61_IDE), 5 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP65_IDE), 5 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP67_IDE), 5 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP73_IDE), 5 }, - { PCI_VDEVICE(NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE_MCP77_IDE), 5 }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5536_IDE), 6 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, amd74xx_pci_tbl); - -static struct pci_driver amd74xx_pci_driver = { - .name = "AMD_IDE", - .id_table = amd74xx_pci_tbl, - .probe = amd74xx_probe, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init amd74xx_ide_init(void) -{ - return ide_pci_register_driver(&amd74xx_pci_driver); -} - -static void __exit amd74xx_ide_exit(void) -{ - pci_unregister_driver(&amd74xx_pci_driver); -} - -module_init(amd74xx_ide_init); -module_exit(amd74xx_ide_exit); - -MODULE_AUTHOR("Vojtech Pavlik, Bartlomiej Zolnierkiewicz"); -MODULE_DESCRIPTION("AMD PCI IDE driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/atiixp.c b/drivers/ide/atiixp.c deleted file mode 100644 index e08b0aac08b9..000000000000 --- a/drivers/ide/atiixp.c +++ /dev/null @@ -1,212 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 2003 ATI Inc. <hyu@ati.com> - * Copyright (C) 2004,2007 Bartlomiej Zolnierkiewicz - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#define DRV_NAME "atiixp" - -#define ATIIXP_IDE_PIO_TIMING 0x40 -#define ATIIXP_IDE_MDMA_TIMING 0x44 -#define ATIIXP_IDE_PIO_CONTROL 0x48 -#define ATIIXP_IDE_PIO_MODE 0x4a -#define ATIIXP_IDE_UDMA_CONTROL 0x54 -#define ATIIXP_IDE_UDMA_MODE 0x56 - -struct atiixp_ide_timing { - u8 command_width; - u8 recover_width; -}; - -static struct atiixp_ide_timing pio_timing[] = { - { 0x05, 0x0d }, - { 0x04, 0x07 }, - { 0x03, 0x04 }, - { 0x02, 0x02 }, - { 0x02, 0x00 }, -}; - -static struct atiixp_ide_timing mdma_timing[] = { - { 0x07, 0x07 }, - { 0x02, 0x01 }, - { 0x02, 0x00 }, -}; - -static DEFINE_SPINLOCK(atiixp_lock); - -/** - * atiixp_set_pio_mode - set host controller for PIO mode - * @hwif: port - * @drive: drive - * - * Set the interface PIO mode. - */ - -static void atiixp_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long flags; - int timing_shift = (drive->dn ^ 1) * 8; - u32 pio_timing_data; - u16 pio_mode_data; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - spin_lock_irqsave(&atiixp_lock, flags); - - pci_read_config_word(dev, ATIIXP_IDE_PIO_MODE, &pio_mode_data); - pio_mode_data &= ~(0x07 << (drive->dn * 4)); - pio_mode_data |= (pio << (drive->dn * 4)); - pci_write_config_word(dev, ATIIXP_IDE_PIO_MODE, pio_mode_data); - - pci_read_config_dword(dev, ATIIXP_IDE_PIO_TIMING, &pio_timing_data); - pio_timing_data &= ~(0xff << timing_shift); - pio_timing_data |= (pio_timing[pio].recover_width << timing_shift) | - (pio_timing[pio].command_width << (timing_shift + 4)); - pci_write_config_dword(dev, ATIIXP_IDE_PIO_TIMING, pio_timing_data); - - spin_unlock_irqrestore(&atiixp_lock, flags); -} - -/** - * atiixp_set_dma_mode - set host controller for DMA mode - * @hwif: port - * @drive: drive - * - * Set a ATIIXP host controller to the desired DMA mode. This involves - * programming the right timing data into the PCI configuration space. - */ - -static void atiixp_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long flags; - int timing_shift = (drive->dn ^ 1) * 8; - u32 tmp32; - u16 tmp16; - u16 udma_ctl = 0; - const u8 speed = drive->dma_mode; - - spin_lock_irqsave(&atiixp_lock, flags); - - pci_read_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, &udma_ctl); - - if (speed >= XFER_UDMA_0) { - pci_read_config_word(dev, ATIIXP_IDE_UDMA_MODE, &tmp16); - tmp16 &= ~(0x07 << (drive->dn * 4)); - tmp16 |= ((speed & 0x07) << (drive->dn * 4)); - pci_write_config_word(dev, ATIIXP_IDE_UDMA_MODE, tmp16); - - udma_ctl |= (1 << drive->dn); - } else if (speed >= XFER_MW_DMA_0) { - u8 i = speed & 0x03; - - pci_read_config_dword(dev, ATIIXP_IDE_MDMA_TIMING, &tmp32); - tmp32 &= ~(0xff << timing_shift); - tmp32 |= (mdma_timing[i].recover_width << timing_shift) | - (mdma_timing[i].command_width << (timing_shift + 4)); - pci_write_config_dword(dev, ATIIXP_IDE_MDMA_TIMING, tmp32); - - udma_ctl &= ~(1 << drive->dn); - } - - pci_write_config_word(dev, ATIIXP_IDE_UDMA_CONTROL, udma_ctl); - - spin_unlock_irqrestore(&atiixp_lock, flags); -} - -static u8 atiixp_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *pdev = to_pci_dev(hwif->dev); - u8 udma_mode = 0, ch = hwif->channel; - - pci_read_config_byte(pdev, ATIIXP_IDE_UDMA_MODE + ch, &udma_mode); - - if ((udma_mode & 0x07) >= 0x04 || (udma_mode & 0x70) >= 0x40) - return ATA_CBL_PATA80; - else - return ATA_CBL_PATA40; -} - -static const struct ide_port_ops atiixp_port_ops = { - .set_pio_mode = atiixp_set_pio_mode, - .set_dma_mode = atiixp_set_dma_mode, - .cable_detect = atiixp_cable_detect, -}; - -static const struct ide_port_info atiixp_pci_info[] = { - { /* 0: IXP200/300/400/700 */ - .name = DRV_NAME, - .enablebits = {{0x48,0x01,0x00}, {0x48,0x08,0x00}}, - .port_ops = &atiixp_port_ops, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA5, - }, - { /* 1: IXP600 */ - .name = DRV_NAME, - .enablebits = {{0x48,0x01,0x00}, {0x00,0x00,0x00}}, - .port_ops = &atiixp_port_ops, - .host_flags = IDE_HFLAG_SINGLE, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA5, - }, -}; - -/** - * atiixp_init_one - called when a ATIIXP is found - * @dev: the atiixp device - * @id: the matching pci id - * - * Called when the PCI registration layer (or the IDE initialization) - * finds a device matching our IDE device tables. - */ - -static int atiixp_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - return ide_pci_init_one(dev, &atiixp_pci_info[id->driver_data], NULL); -} - -static const struct pci_device_id atiixp_pci_tbl[] = { - { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP200_IDE), 0 }, - { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP300_IDE), 0 }, - { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP400_IDE), 0 }, - { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP600_IDE), 1 }, - { PCI_VDEVICE(ATI, PCI_DEVICE_ID_ATI_IXP700_IDE), 0 }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_HUDSON2_IDE), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, atiixp_pci_tbl); - -static struct pci_driver atiixp_pci_driver = { - .name = "ATIIXP_IDE", - .id_table = atiixp_pci_tbl, - .probe = atiixp_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init atiixp_ide_init(void) -{ - return ide_pci_register_driver(&atiixp_pci_driver); -} - -static void __exit atiixp_ide_exit(void) -{ - pci_unregister_driver(&atiixp_pci_driver); -} - -module_init(atiixp_ide_init); -module_exit(atiixp_ide_exit); - -MODULE_AUTHOR("HUI YU"); -MODULE_DESCRIPTION("PCI driver module for ATI IXP IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/buddha.c b/drivers/ide/buddha.c deleted file mode 100644 index 46eaf58d881b..000000000000 --- a/drivers/ide/buddha.c +++ /dev/null @@ -1,238 +0,0 @@ -/* - * Amiga Buddha, Catweasel and X-Surf IDE Driver - * - * Copyright (C) 1997, 2001 by Geert Uytterhoeven and others - * - * This driver was written based on the specifications in README.buddha and - * the X-Surf info from Inside_XSurf.txt available at - * http://www.jschoenfeld.com - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive for - * more details. - * - * TODO: - * - test it :-) - * - tune the timings using the speed-register - */ - -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/blkdev.h> -#include <linux/zorro.h> -#include <linux/ide.h> -#include <linux/init.h> -#include <linux/module.h> - -#include <asm/amigahw.h> -#include <asm/amigaints.h> - - - /* - * The Buddha has 2 IDE interfaces, the Catweasel has 3, X-Surf has 2 - */ - -#define BUDDHA_NUM_HWIFS 2 -#define CATWEASEL_NUM_HWIFS 3 -#define XSURF_NUM_HWIFS 2 - -#define MAX_NUM_HWIFS 3 - - /* - * Bases of the IDE interfaces (relative to the board address) - */ - -#define BUDDHA_BASE1 0x800 -#define BUDDHA_BASE2 0xa00 -#define BUDDHA_BASE3 0xc00 - -#define XSURF_BASE1 0xb000 /* 2.5" Interface */ -#define XSURF_BASE2 0xd000 /* 3.5" Interface */ - -static u_int buddha_bases[CATWEASEL_NUM_HWIFS] __initdata = { - BUDDHA_BASE1, BUDDHA_BASE2, BUDDHA_BASE3 -}; - -static u_int xsurf_bases[XSURF_NUM_HWIFS] __initdata = { - XSURF_BASE1, XSURF_BASE2 -}; - - /* - * Offsets from one of the above bases - */ - -#define BUDDHA_CONTROL 0x11a - - /* - * Other registers - */ - -#define BUDDHA_IRQ1 0xf00 /* MSB = 1, Harddisk is source of */ -#define BUDDHA_IRQ2 0xf40 /* interrupt */ -#define BUDDHA_IRQ3 0xf80 - -#define XSURF_IRQ1 0x7e -#define XSURF_IRQ2 0x7e - -static int buddha_irqports[CATWEASEL_NUM_HWIFS] __initdata = { - BUDDHA_IRQ1, BUDDHA_IRQ2, BUDDHA_IRQ3 -}; - -static int xsurf_irqports[XSURF_NUM_HWIFS] __initdata = { - XSURF_IRQ1, XSURF_IRQ2 -}; - -#define BUDDHA_IRQ_MR 0xfc0 /* master interrupt enable */ - - - /* - * Board information - */ - -typedef enum BuddhaType_Enum { - BOARD_BUDDHA, BOARD_CATWEASEL, BOARD_XSURF -} BuddhaType; - -static const char *buddha_board_name[] = { "Buddha", "Catweasel", "X-Surf" }; - - /* - * Check and acknowledge the interrupt status - */ - -static int buddha_test_irq(ide_hwif_t *hwif) -{ - unsigned char ch; - - ch = z_readb(hwif->io_ports.irq_addr); - if (!(ch & 0x80)) - return 0; - return 1; -} - -static void xsurf_clear_irq(ide_drive_t *drive) -{ - /* - * X-Surf needs 0 written to IRQ register to ensure ISA bit A11 stays at 0 - */ - z_writeb(0, drive->hwif->io_ports.irq_addr); -} - -static void __init buddha_setup_ports(struct ide_hw *hw, unsigned long base, - unsigned long ctl, unsigned long irq_port) -{ - int i; - - memset(hw, 0, sizeof(*hw)); - - hw->io_ports.data_addr = base; - - for (i = 1; i < 8; i++) - hw->io_ports_array[i] = base + 2 + i * 4; - - hw->io_ports.ctl_addr = ctl; - hw->io_ports.irq_addr = irq_port; - - hw->irq = IRQ_AMIGA_PORTS; -} - -static const struct ide_port_ops buddha_port_ops = { - .test_irq = buddha_test_irq, -}; - -static const struct ide_port_ops xsurf_port_ops = { - .clear_irq = xsurf_clear_irq, - .test_irq = buddha_test_irq, -}; - -static const struct ide_port_info buddha_port_info = { - .port_ops = &buddha_port_ops, - .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA, - .irq_flags = IRQF_SHARED, - .chipset = ide_generic, -}; - - /* - * Probe for a Buddha or Catweasel IDE interface - */ - -static int __init buddha_init(void) -{ - struct zorro_dev *z = NULL; - u_long buddha_board = 0; - BuddhaType type; - int buddha_num_hwifs, i; - - while ((z = zorro_find_device(ZORRO_WILDCARD, z))) { - unsigned long board; - struct ide_hw hw[MAX_NUM_HWIFS], *hws[MAX_NUM_HWIFS]; - struct ide_port_info d = buddha_port_info; - - if (z->id == ZORRO_PROD_INDIVIDUAL_COMPUTERS_BUDDHA) { - buddha_num_hwifs = BUDDHA_NUM_HWIFS; - type=BOARD_BUDDHA; - } else if (z->id == ZORRO_PROD_INDIVIDUAL_COMPUTERS_CATWEASEL) { - buddha_num_hwifs = CATWEASEL_NUM_HWIFS; - type=BOARD_CATWEASEL; - } else if (z->id == ZORRO_PROD_INDIVIDUAL_COMPUTERS_X_SURF) { - buddha_num_hwifs = XSURF_NUM_HWIFS; - type=BOARD_XSURF; - d.port_ops = &xsurf_port_ops; - } else - continue; - - board = z->resource.start; - - if(type != BOARD_XSURF) { - if (!request_mem_region(board+BUDDHA_BASE1, 0x800, "IDE")) - continue; - } else { - if (!request_mem_region(board+XSURF_BASE1, 0x1000, "IDE")) - continue; - if (!request_mem_region(board+XSURF_BASE2, 0x1000, "IDE")) - goto fail_base2; - if (!request_mem_region(board+XSURF_IRQ1, 0x8, "IDE")) { - release_mem_region(board+XSURF_BASE2, 0x1000); -fail_base2: - release_mem_region(board+XSURF_BASE1, 0x1000); - continue; - } - } - buddha_board = (unsigned long)ZTWO_VADDR(board); - - /* write to BUDDHA_IRQ_MR to enable the board IRQ */ - /* X-Surf doesn't have this. IRQs are always on */ - if (type != BOARD_XSURF) - z_writeb(0, buddha_board+BUDDHA_IRQ_MR); - - printk(KERN_INFO "ide: %s IDE controller\n", - buddha_board_name[type]); - - for (i = 0; i < buddha_num_hwifs; i++) { - unsigned long base, ctl, irq_port; - - if (type != BOARD_XSURF) { - base = buddha_board + buddha_bases[i]; - ctl = base + BUDDHA_CONTROL; - irq_port = buddha_board + buddha_irqports[i]; - } else { - base = buddha_board + xsurf_bases[i]; - /* X-Surf has no CS1* (Control/AltStat) */ - ctl = 0; - irq_port = buddha_board + xsurf_irqports[i]; - } - - buddha_setup_ports(&hw[i], base, ctl, irq_port); - - hws[i] = &hw[i]; - } - - ide_host_add(&d, hws, i, NULL); - } - - return 0; -} - -module_init(buddha_init); - -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/cmd640.c b/drivers/ide/cmd640.c deleted file mode 100644 index f48decb9fac4..000000000000 --- a/drivers/ide/cmd640.c +++ /dev/null @@ -1,848 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1995-1996 Linus Torvalds & authors (see below) - */ - -/* - * Original authors: abramov@cecmow.enet.dec.com (Igor Abramov) - * mlord@pobox.com (Mark Lord) - * - * See linux/MAINTAINERS for address of current maintainer. - * - * This file provides support for the advanced features and bugs - * of IDE interfaces using the CMD Technologies 0640 IDE interface chip. - * - * These chips are basically fucked by design, and getting this driver - * to work on every motherboard design that uses this screwed chip seems - * bloody well impossible. However, we're still trying. - * - * Version 0.97 worked for everybody. - * - * User feedback is essential. Many thanks to the beta test team: - * - * A.Hartgers@stud.tue.nl, JZDQC@CUNYVM.CUNY.edu, abramov@cecmow.enet.dec.com, - * bardj@utopia.ppp.sn.no, bart@gaga.tue.nl, bbol001@cs.auckland.ac.nz, - * chrisc@dbass.demon.co.uk, dalecki@namu26.Num.Math.Uni-Goettingen.de, - * derekn@vw.ece.cmu.edu, florian@btp2x3.phy.uni-bayreuth.de, - * flynn@dei.unipd.it, gadio@netvision.net.il, godzilla@futuris.net, - * j@pobox.com, jkemp1@mises.uni-paderborn.de, jtoppe@hiwaay.net, - * kerouac@ssnet.com, meskes@informatik.rwth-aachen.de, hzoli@cs.elte.hu, - * peter@udgaard.isgtec.com, phil@tazenda.demon.co.uk, roadcapw@cfw.com, - * s0033las@sun10.vsz.bme.hu, schaffer@tam.cornell.edu, sjd@slip.net, - * steve@ei.org, ulrpeg@bigcomm.gun.de, ism@tardis.ed.ac.uk, mack@cray.com - * liug@mama.indstate.edu, and others. - * - * Version 0.01 Initial version, hacked out of ide.c, - * and #include'd rather than compiled separately. - * This will get cleaned up in a subsequent release. - * - * Version 0.02 Fixes for vlb initialization code, enable prefetch - * for versions 'B' and 'C' of chip by default, - * some code cleanup. - * - * Version 0.03 Added reset of secondary interface, - * and black list for devices which are not compatible - * with prefetch mode. Separate function for setting - * prefetch is added, possibly it will be called some - * day from ioctl processing code. - * - * Version 0.04 Now configs/compiles separate from ide.c - * - * Version 0.05 Major rewrite of interface timing code. - * Added new function cmd640_set_mode to set PIO mode - * from ioctl call. New drives added to black list. - * - * Version 0.06 More code cleanup. Prefetch is enabled only for - * detected hard drives, not included in prefetch - * black list. - * - * Version 0.07 Changed to more conservative drive tuning policy. - * Unknown drives, which report PIO < 4 are set to - * (reported_PIO - 1) if it is supported, or to PIO0. - * List of known drives extended by info provided by - * CMD at their ftp site. - * - * Version 0.08 Added autotune/noautotune support. - * - * Version 0.09 Try to be smarter about 2nd port enabling. - * Version 0.10 Be nice and don't reset 2nd port. - * Version 0.11 Try to handle more weird situations. - * - * Version 0.12 Lots of bug fixes from Laszlo Peter - * irq unmasking disabled for reliability. - * try to be even smarter about the second port. - * tidy up source code formatting. - * Version 0.13 permit irq unmasking again. - * Version 0.90 massive code cleanup, some bugs fixed. - * defaults all drives to PIO mode0, prefetch off. - * autotune is OFF by default, with compile time flag. - * prefetch can be turned OFF/ON using "hdparm -p8/-p9" - * (requires hdparm-3.1 or newer) - * Version 0.91 first release to linux-kernel list. - * Version 0.92 move initial reg dump to separate callable function - * change "readahead" to "prefetch" to avoid confusion - * Version 0.95 respect original BIOS timings unless autotuning. - * tons of code cleanup and rearrangement. - * added CONFIG_BLK_DEV_CMD640_ENHANCED option - * prevent use of unmask when prefetch is on - * Version 0.96 prevent use of io_32bit when prefetch is off - * Version 0.97 fix VLB secondary interface for sjd@slip.net - * other minor tune-ups: 0.96 was very good. - * Version 0.98 ignore PCI version when disabled by BIOS - * Version 0.99 display setup/active/recovery clocks with PIO mode - * Version 1.00 Mmm.. cannot depend on PCMD_ENA in all systems - * Version 1.01 slow/fast devsel can be selected with "hdparm -p6/-p7" - * ("fast" is necessary for 32bit I/O in some systems) - * Version 1.02 fix bug that resulted in slow "setup times" - * (patch courtesy of Zoltan Hidvegi) - */ - -#define CMD640_PREFETCH_MASKS 1 - -/*#define CMD640_DUMP_REGS */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/ide.h> -#include <linux/init.h> -#include <linux/module.h> - -#include <asm/io.h> - -#define DRV_NAME "cmd640" - -static bool cmd640_vlb; - -/* - * CMD640 specific registers definition. - */ - -#define VID 0x00 -#define DID 0x02 -#define PCMD 0x04 -#define PCMD_ENA 0x01 -#define PSTTS 0x06 -#define REVID 0x08 -#define PROGIF 0x09 -#define SUBCL 0x0a -#define BASCL 0x0b -#define BaseA0 0x10 -#define BaseA1 0x14 -#define BaseA2 0x18 -#define BaseA3 0x1c -#define INTLINE 0x3c -#define INPINE 0x3d - -#define CFR 0x50 -#define CFR_DEVREV 0x03 -#define CFR_IDE01INTR 0x04 -#define CFR_DEVID 0x18 -#define CFR_AT_VESA_078h 0x20 -#define CFR_DSA1 0x40 -#define CFR_DSA0 0x80 - -#define CNTRL 0x51 -#define CNTRL_DIS_RA0 0x40 -#define CNTRL_DIS_RA1 0x80 -#define CNTRL_ENA_2ND 0x08 - -#define CMDTIM 0x52 -#define ARTTIM0 0x53 -#define DRWTIM0 0x54 -#define ARTTIM1 0x55 -#define DRWTIM1 0x56 -#define ARTTIM23 0x57 -#define ARTTIM23_DIS_RA2 0x04 -#define ARTTIM23_DIS_RA3 0x08 -#define ARTTIM23_IDE23INTR 0x10 -#define DRWTIM23 0x58 -#define BRST 0x59 - -/* - * Registers and masks for easy access by drive index: - */ -static u8 prefetch_regs[4] = {CNTRL, CNTRL, ARTTIM23, ARTTIM23}; -static u8 prefetch_masks[4] = {CNTRL_DIS_RA0, CNTRL_DIS_RA1, ARTTIM23_DIS_RA2, ARTTIM23_DIS_RA3}; - -#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED - -static u8 arttim_regs[4] = {ARTTIM0, ARTTIM1, ARTTIM23, ARTTIM23}; -static u8 drwtim_regs[4] = {DRWTIM0, DRWTIM1, DRWTIM23, DRWTIM23}; - -/* - * Current cmd640 timing values for each drive. - * The defaults for each are the slowest possible timings. - */ -static u8 setup_counts[4] = {4, 4, 4, 4}; /* Address setup count (in clocks) */ -static u8 active_counts[4] = {16, 16, 16, 16}; /* Active count (encoded) */ -static u8 recovery_counts[4] = {16, 16, 16, 16}; /* Recovery count (encoded) */ - -#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */ - -static DEFINE_SPINLOCK(cmd640_lock); - -/* - * Interface to access cmd640x registers - */ -static unsigned int cmd640_key; -static void (*__put_cmd640_reg)(u16 reg, u8 val); -static u8 (*__get_cmd640_reg)(u16 reg); - -/* - * This is read from the CFR reg, and is used in several places. - */ -static unsigned int cmd640_chip_version; - -/* - * The CMD640x chip does not support DWORD config write cycles, but some - * of the BIOSes use them to implement the config services. - * Therefore, we must use direct IO instead. - */ - -/* PCI method 1 access */ - -static void put_cmd640_reg_pci1(u16 reg, u8 val) -{ - outl_p((reg & 0xfc) | cmd640_key, 0xcf8); - outb_p(val, (reg & 3) | 0xcfc); -} - -static u8 get_cmd640_reg_pci1(u16 reg) -{ - outl_p((reg & 0xfc) | cmd640_key, 0xcf8); - return inb_p((reg & 3) | 0xcfc); -} - -/* PCI method 2 access (from CMD datasheet) */ - -static void put_cmd640_reg_pci2(u16 reg, u8 val) -{ - outb_p(0x10, 0xcf8); - outb_p(val, cmd640_key + reg); - outb_p(0, 0xcf8); -} - -static u8 get_cmd640_reg_pci2(u16 reg) -{ - u8 b; - - outb_p(0x10, 0xcf8); - b = inb_p(cmd640_key + reg); - outb_p(0, 0xcf8); - return b; -} - -/* VLB access */ - -static void put_cmd640_reg_vlb(u16 reg, u8 val) -{ - outb_p(reg, cmd640_key); - outb_p(val, cmd640_key + 4); -} - -static u8 get_cmd640_reg_vlb(u16 reg) -{ - outb_p(reg, cmd640_key); - return inb_p(cmd640_key + 4); -} - -static u8 get_cmd640_reg(u16 reg) -{ - unsigned long flags; - u8 b; - - spin_lock_irqsave(&cmd640_lock, flags); - b = __get_cmd640_reg(reg); - spin_unlock_irqrestore(&cmd640_lock, flags); - return b; -} - -static void put_cmd640_reg(u16 reg, u8 val) -{ - unsigned long flags; - - spin_lock_irqsave(&cmd640_lock, flags); - __put_cmd640_reg(reg, val); - spin_unlock_irqrestore(&cmd640_lock, flags); -} - -static int __init match_pci_cmd640_device(void) -{ - const u8 ven_dev[4] = {0x95, 0x10, 0x40, 0x06}; - unsigned int i; - for (i = 0; i < 4; i++) { - if (get_cmd640_reg(i) != ven_dev[i]) - return 0; - } -#ifdef STUPIDLY_TRUST_BROKEN_PCMD_ENA_BIT - if ((get_cmd640_reg(PCMD) & PCMD_ENA) == 0) { - printk("ide: cmd640 on PCI disabled by BIOS\n"); - return 0; - } -#endif /* STUPIDLY_TRUST_BROKEN_PCMD_ENA_BIT */ - return 1; /* success */ -} - -/* - * Probe for CMD640x -- pci method 1 - */ -static int __init probe_for_cmd640_pci1(void) -{ - __get_cmd640_reg = get_cmd640_reg_pci1; - __put_cmd640_reg = put_cmd640_reg_pci1; - for (cmd640_key = 0x80000000; - cmd640_key <= 0x8000f800; - cmd640_key += 0x800) { - if (match_pci_cmd640_device()) - return 1; /* success */ - } - return 0; -} - -/* - * Probe for CMD640x -- pci method 2 - */ -static int __init probe_for_cmd640_pci2(void) -{ - __get_cmd640_reg = get_cmd640_reg_pci2; - __put_cmd640_reg = put_cmd640_reg_pci2; - for (cmd640_key = 0xc000; cmd640_key <= 0xcf00; cmd640_key += 0x100) { - if (match_pci_cmd640_device()) - return 1; /* success */ - } - return 0; -} - -/* - * Probe for CMD640x -- vlb - */ -static int __init probe_for_cmd640_vlb(void) -{ - u8 b; - - __get_cmd640_reg = get_cmd640_reg_vlb; - __put_cmd640_reg = put_cmd640_reg_vlb; - cmd640_key = 0x178; - b = get_cmd640_reg(CFR); - if (b == 0xff || b == 0x00 || (b & CFR_AT_VESA_078h)) { - cmd640_key = 0x78; - b = get_cmd640_reg(CFR); - if (b == 0xff || b == 0x00 || !(b & CFR_AT_VESA_078h)) - return 0; - } - return 1; /* success */ -} - -/* - * Returns 1 if an IDE interface/drive exists at 0x170, - * Returns 0 otherwise. - */ -static int __init secondary_port_responding(void) -{ - unsigned long flags; - - spin_lock_irqsave(&cmd640_lock, flags); - - outb_p(0x0a, 0x176); /* select drive0 */ - udelay(100); - if ((inb_p(0x176) & 0x1f) != 0x0a) { - outb_p(0x1a, 0x176); /* select drive1 */ - udelay(100); - if ((inb_p(0x176) & 0x1f) != 0x1a) { - spin_unlock_irqrestore(&cmd640_lock, flags); - return 0; /* nothing responded */ - } - } - spin_unlock_irqrestore(&cmd640_lock, flags); - return 1; /* success */ -} - -#ifdef CMD640_DUMP_REGS -/* - * Dump out all cmd640 registers. May be called from ide.c - */ -static void cmd640_dump_regs(void) -{ - unsigned int reg = cmd640_vlb ? 0x50 : 0x00; - - /* Dump current state of chip registers */ - printk("ide: cmd640 internal register dump:"); - for (; reg <= 0x59; reg++) { - if (!(reg & 0x0f)) - printk("\n%04x:", reg); - printk(" %02x", get_cmd640_reg(reg)); - } - printk("\n"); -} -#endif - -static void __set_prefetch_mode(ide_drive_t *drive, int mode) -{ - if (mode) { /* want prefetch on? */ -#if CMD640_PREFETCH_MASKS - drive->dev_flags |= IDE_DFLAG_NO_UNMASK; - drive->dev_flags &= ~IDE_DFLAG_UNMASK; -#endif - drive->dev_flags &= ~IDE_DFLAG_NO_IO_32BIT; - } else { - drive->dev_flags &= ~IDE_DFLAG_NO_UNMASK; - drive->dev_flags |= IDE_DFLAG_NO_IO_32BIT; - drive->io_32bit = 0; - } -} - -#ifndef CONFIG_BLK_DEV_CMD640_ENHANCED -/* - * Check whether prefetch is on for a drive, - * and initialize the unmask flags for safe operation. - */ -static void __init check_prefetch(ide_drive_t *drive, unsigned int index) -{ - u8 b = get_cmd640_reg(prefetch_regs[index]); - - __set_prefetch_mode(drive, (b & prefetch_masks[index]) ? 0 : 1); -} -#else - -/* - * Sets prefetch mode for a drive. - */ -static void set_prefetch_mode(ide_drive_t *drive, unsigned int index, int mode) -{ - unsigned long flags; - int reg = prefetch_regs[index]; - u8 b; - - spin_lock_irqsave(&cmd640_lock, flags); - b = __get_cmd640_reg(reg); - __set_prefetch_mode(drive, mode); - if (mode) - b &= ~prefetch_masks[index]; /* enable prefetch */ - else - b |= prefetch_masks[index]; /* disable prefetch */ - __put_cmd640_reg(reg, b); - spin_unlock_irqrestore(&cmd640_lock, flags); -} - -/* - * Dump out current drive clocks settings - */ -static void display_clocks(unsigned int index) -{ - u8 active_count, recovery_count; - - active_count = active_counts[index]; - if (active_count == 1) - ++active_count; - recovery_count = recovery_counts[index]; - if (active_count > 3 && recovery_count == 1) - ++recovery_count; - if (cmd640_chip_version > 1) - recovery_count += 1; /* cmd640b uses (count + 1)*/ - printk(", clocks=%d/%d/%d\n", setup_counts[index], active_count, recovery_count); -} - -/* - * Pack active and recovery counts into single byte representation - * used by controller - */ -static inline u8 pack_nibbles(u8 upper, u8 lower) -{ - return ((upper & 0x0f) << 4) | (lower & 0x0f); -} - -/* - * This routine writes the prepared setup/active/recovery counts - * for a drive into the cmd640 chipset registers to active them. - */ -static void program_drive_counts(ide_drive_t *drive, unsigned int index) -{ - unsigned long flags; - u8 setup_count = setup_counts[index]; - u8 active_count = active_counts[index]; - u8 recovery_count = recovery_counts[index]; - - /* - * Set up address setup count and drive read/write timing registers. - * Primary interface has individual count/timing registers for - * each drive. Secondary interface has one common set of registers, - * so we merge the timings, using the slowest value for each timing. - */ - if (index > 1) { - ide_drive_t *peer = ide_get_pair_dev(drive); - unsigned int mate = index ^ 1; - - if (peer) { - if (setup_count < setup_counts[mate]) - setup_count = setup_counts[mate]; - if (active_count < active_counts[mate]) - active_count = active_counts[mate]; - if (recovery_count < recovery_counts[mate]) - recovery_count = recovery_counts[mate]; - } - } - - /* - * Convert setup_count to internal chipset representation - */ - switch (setup_count) { - case 4: setup_count = 0x00; break; - case 3: setup_count = 0x80; break; - case 1: - case 2: setup_count = 0x40; break; - default: setup_count = 0xc0; /* case 5 */ - } - - /* - * Now that everything is ready, program the new timings - */ - spin_lock_irqsave(&cmd640_lock, flags); - /* - * Program the address_setup clocks into ARTTIM reg, - * and then the active/recovery counts into the DRWTIM reg - * (this converts counts of 16 into counts of zero -- okay). - */ - setup_count |= __get_cmd640_reg(arttim_regs[index]) & 0x3f; - __put_cmd640_reg(arttim_regs[index], setup_count); - __put_cmd640_reg(drwtim_regs[index], pack_nibbles(active_count, recovery_count)); - spin_unlock_irqrestore(&cmd640_lock, flags); -} - -/* - * Set a specific pio_mode for a drive - */ -static void cmd640_set_mode(ide_drive_t *drive, unsigned int index, - u8 pio_mode, unsigned int cycle_time) -{ - struct ide_timing *t; - int setup_time, active_time, recovery_time, clock_time; - u8 setup_count, active_count, recovery_count, recovery_count2, cycle_count; - int bus_speed; - - if (cmd640_vlb) - bus_speed = ide_vlb_clk ? ide_vlb_clk : 50; - else - bus_speed = ide_pci_clk ? ide_pci_clk : 33; - - if (pio_mode > 5) - pio_mode = 5; - - t = ide_timing_find_mode(XFER_PIO_0 + pio_mode); - setup_time = t->setup; - active_time = t->active; - - recovery_time = cycle_time - (setup_time + active_time); - clock_time = 1000 / bus_speed; - cycle_count = DIV_ROUND_UP(cycle_time, clock_time); - - setup_count = DIV_ROUND_UP(setup_time, clock_time); - - active_count = DIV_ROUND_UP(active_time, clock_time); - if (active_count < 2) - active_count = 2; /* minimum allowed by cmd640 */ - - recovery_count = DIV_ROUND_UP(recovery_time, clock_time); - recovery_count2 = cycle_count - (setup_count + active_count); - if (recovery_count2 > recovery_count) - recovery_count = recovery_count2; - if (recovery_count < 2) - recovery_count = 2; /* minimum allowed by cmd640 */ - if (recovery_count > 17) { - active_count += recovery_count - 17; - recovery_count = 17; - } - if (active_count > 16) - active_count = 16; /* maximum allowed by cmd640 */ - if (cmd640_chip_version > 1) - recovery_count -= 1; /* cmd640b uses (count + 1)*/ - if (recovery_count > 16) - recovery_count = 16; /* maximum allowed by cmd640 */ - - setup_counts[index] = setup_count; - active_counts[index] = active_count; - recovery_counts[index] = recovery_count; - - /* - * In a perfect world, we might set the drive pio mode here - * (using WIN_SETFEATURE) before continuing. - * - * But we do not, because: - * 1) this is the wrong place to do it (proper is do_special() in ide.c) - * 2) in practice this is rarely, if ever, necessary - */ - program_drive_counts(drive, index); -} - -static void cmd640_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - unsigned int index = 0, cycle_time; - const u8 pio = drive->pio_mode - XFER_PIO_0; - u8 b; - - switch (pio) { - case 6: /* set fast-devsel off */ - case 7: /* set fast-devsel on */ - b = get_cmd640_reg(CNTRL) & ~0x27; - if (pio & 1) - b |= 0x27; - put_cmd640_reg(CNTRL, b); - printk("%s: %sabled cmd640 fast host timing (devsel)\n", - drive->name, (pio & 1) ? "en" : "dis"); - return; - case 8: /* set prefetch off */ - case 9: /* set prefetch on */ - set_prefetch_mode(drive, index, pio & 1); - printk("%s: %sabled cmd640 prefetch\n", - drive->name, (pio & 1) ? "en" : "dis"); - return; - } - - cycle_time = ide_pio_cycle_time(drive, pio); - cmd640_set_mode(drive, index, pio, cycle_time); - - printk("%s: selected cmd640 PIO mode%d (%dns)", - drive->name, pio, cycle_time); - - display_clocks(index); -} -#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */ - -static void __init cmd640_init_dev(ide_drive_t *drive) -{ - unsigned int i = drive->hwif->channel * 2 + (drive->dn & 1); - -#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED - /* - * Reset timing to the slowest speed and turn off prefetch. - * This way, the drive identify code has a better chance. - */ - setup_counts[i] = 4; /* max possible */ - active_counts[i] = 16; /* max possible */ - recovery_counts[i] = 16; /* max possible */ - program_drive_counts(drive, i); - set_prefetch_mode(drive, i, 0); - printk(KERN_INFO DRV_NAME ": drive%d timings/prefetch cleared\n", i); -#else - /* - * Set the drive unmask flags to match the prefetch setting. - */ - check_prefetch(drive, i); - printk(KERN_INFO DRV_NAME ": drive%d timings/prefetch(%s) preserved\n", - i, (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT) ? "off" : "on"); -#endif /* CONFIG_BLK_DEV_CMD640_ENHANCED */ -} - -static int cmd640_test_irq(ide_hwif_t *hwif) -{ - int irq_reg = hwif->channel ? ARTTIM23 : CFR; - u8 irq_mask = hwif->channel ? ARTTIM23_IDE23INTR : - CFR_IDE01INTR; - u8 irq_stat = get_cmd640_reg(irq_reg); - - return (irq_stat & irq_mask) ? 1 : 0; -} - -static const struct ide_port_ops cmd640_port_ops = { - .init_dev = cmd640_init_dev, -#ifdef CONFIG_BLK_DEV_CMD640_ENHANCED - .set_pio_mode = cmd640_set_pio_mode, -#endif - .test_irq = cmd640_test_irq, -}; - -static int pci_conf1(void) -{ - unsigned long flags; - u32 tmp; - - spin_lock_irqsave(&cmd640_lock, flags); - outb(0x01, 0xCFB); - tmp = inl(0xCF8); - outl(0x80000000, 0xCF8); - if (inl(0xCF8) == 0x80000000) { - outl(tmp, 0xCF8); - spin_unlock_irqrestore(&cmd640_lock, flags); - return 1; - } - outl(tmp, 0xCF8); - spin_unlock_irqrestore(&cmd640_lock, flags); - return 0; -} - -static int pci_conf2(void) -{ - unsigned long flags; - - spin_lock_irqsave(&cmd640_lock, flags); - outb(0x00, 0xCFB); - outb(0x00, 0xCF8); - outb(0x00, 0xCFA); - if (inb(0xCF8) == 0x00 && inb(0xCF8) == 0x00) { - spin_unlock_irqrestore(&cmd640_lock, flags); - return 1; - } - spin_unlock_irqrestore(&cmd640_lock, flags); - return 0; -} - -static const struct ide_port_info cmd640_port_info __initconst = { - .chipset = ide_cmd640, - .host_flags = IDE_HFLAG_SERIALIZE | - IDE_HFLAG_NO_DMA | - IDE_HFLAG_ABUSE_PREFETCH | - IDE_HFLAG_ABUSE_FAST_DEVSEL, - .port_ops = &cmd640_port_ops, - .pio_mask = ATA_PIO5, -}; - -static int __init cmd640x_init_one(unsigned long base, unsigned long ctl) -{ - if (!request_region(base, 8, DRV_NAME)) { - printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", - DRV_NAME, base, base + 7); - return -EBUSY; - } - - if (!request_region(ctl, 1, DRV_NAME)) { - printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", - DRV_NAME, ctl); - release_region(base, 8); - return -EBUSY; - } - - return 0; -} - -/* - * Probe for a cmd640 chipset, and initialize it if found. - */ -static int __init cmd640x_init(void) -{ - int second_port_cmd640 = 0, rc; - const char *bus_type, *port2; - u8 b, cfr; - struct ide_hw hw[2], *hws[2]; - - if (cmd640_vlb && probe_for_cmd640_vlb()) { - bus_type = "VLB"; - } else { - cmd640_vlb = 0; - /* Find out what kind of PCI probing is supported otherwise - Justin Gibbs will sulk.. */ - if (pci_conf1() && probe_for_cmd640_pci1()) - bus_type = "PCI (type1)"; - else if (pci_conf2() && probe_for_cmd640_pci2()) - bus_type = "PCI (type2)"; - else - return 0; - } - /* - * Undocumented magic (there is no 0x5b reg in specs) - */ - put_cmd640_reg(0x5b, 0xbd); - if (get_cmd640_reg(0x5b) != 0xbd) { - printk(KERN_ERR "ide: cmd640 init failed: wrong value in reg 0x5b\n"); - return 0; - } - put_cmd640_reg(0x5b, 0); - -#ifdef CMD640_DUMP_REGS - cmd640_dump_regs(); -#endif - - /* - * Documented magic begins here - */ - cfr = get_cmd640_reg(CFR); - cmd640_chip_version = cfr & CFR_DEVREV; - if (cmd640_chip_version == 0) { - printk("ide: bad cmd640 revision: %d\n", cmd640_chip_version); - return 0; - } - - rc = cmd640x_init_one(0x1f0, 0x3f6); - if (rc) - return rc; - - rc = cmd640x_init_one(0x170, 0x376); - if (rc) { - release_region(0x3f6, 1); - release_region(0x1f0, 8); - return rc; - } - - memset(&hw, 0, sizeof(hw)); - - ide_std_init_ports(&hw[0], 0x1f0, 0x3f6); - hw[0].irq = 14; - - ide_std_init_ports(&hw[1], 0x170, 0x376); - hw[1].irq = 15; - - printk(KERN_INFO "cmd640: buggy cmd640%c interface on %s, config=0x%02x" - "\n", 'a' + cmd640_chip_version - 1, bus_type, cfr); - - /* - * Initialize data for primary port - */ - hws[0] = &hw[0]; - - /* - * Ensure compatibility by always using the slowest timings - * for access to the drive's command register block, - * and reset the prefetch burstsize to default (512 bytes). - * - * Maybe we need a way to NOT do these on *some* systems? - */ - put_cmd640_reg(CMDTIM, 0); - put_cmd640_reg(BRST, 0x40); - - b = get_cmd640_reg(CNTRL); - - /* - * Try to enable the secondary interface, if not already enabled - */ - if (secondary_port_responding()) { - if ((b & CNTRL_ENA_2ND)) { - second_port_cmd640 = 1; - port2 = "okay"; - } else if (cmd640_vlb) { - second_port_cmd640 = 1; - port2 = "alive"; - } else - port2 = "not cmd640"; - } else { - put_cmd640_reg(CNTRL, b ^ CNTRL_ENA_2ND); /* toggle the bit */ - if (secondary_port_responding()) { - second_port_cmd640 = 1; - port2 = "enabled"; - } else { - put_cmd640_reg(CNTRL, b); /* restore original setting */ - port2 = "not responding"; - } - } - - /* - * Initialize data for secondary cmd640 port, if enabled - */ - if (second_port_cmd640) - hws[1] = &hw[1]; - - printk(KERN_INFO "cmd640: %sserialized, secondary interface %s\n", - second_port_cmd640 ? "" : "not ", port2); - -#ifdef CMD640_DUMP_REGS - cmd640_dump_regs(); -#endif - - return ide_host_add(&cmd640_port_info, hws, second_port_cmd640 ? 2 : 1, - NULL); -} - -module_param_named(probe_vlb, cmd640_vlb, bool, 0); -MODULE_PARM_DESC(probe_vlb, "probe for VLB version of CMD640 chipset"); - -module_init(cmd640x_init); - -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/cmd64x.c b/drivers/ide/cmd64x.c deleted file mode 100644 index 943bf944bf72..000000000000 --- a/drivers/ide/cmd64x.c +++ /dev/null @@ -1,452 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * cmd64x.c: Enable interrupts at initialization time on Ultra/PCI machines. - * Due to massive hardware bugs, UltraDMA is only supported - * on the 646U2 and not on the 646U. - * - * Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be) - * Copyright (C) 1998 David S. Miller (davem@redhat.com) - * - * Copyright (C) 1999-2002 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2007-2010 Bartlomiej Zolnierkiewicz - * Copyright (C) 2007,2009 MontaVista Software, Inc. <source@mvista.com> - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#include <asm/io.h> - -#define DRV_NAME "cmd64x" - -/* - * CMD64x specific registers definition. - */ -#define CFR 0x50 -#define CFR_INTR_CH0 0x04 - -#define CMDTIM 0x52 -#define ARTTIM0 0x53 -#define DRWTIM0 0x54 -#define ARTTIM1 0x55 -#define DRWTIM1 0x56 -#define ARTTIM23 0x57 -#define ARTTIM23_DIS_RA2 0x04 -#define ARTTIM23_DIS_RA3 0x08 -#define ARTTIM23_INTR_CH1 0x10 -#define DRWTIM2 0x58 -#define BRST 0x59 -#define DRWTIM3 0x5b - -#define BMIDECR0 0x70 -#define MRDMODE 0x71 -#define MRDMODE_INTR_CH0 0x04 -#define MRDMODE_INTR_CH1 0x08 -#define UDIDETCR0 0x73 -#define DTPR0 0x74 -#define BMIDECR1 0x78 -#define BMIDECSR 0x79 -#define UDIDETCR1 0x7B -#define DTPR1 0x7C - -static void cmd64x_program_timings(ide_drive_t *drive, u8 mode) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - int bus_speed = ide_pci_clk ? ide_pci_clk : 33; - const unsigned long T = 1000000 / bus_speed; - static const u8 recovery_values[] = - {15, 15, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 0}; - static const u8 setup_values[] = {0x40, 0x40, 0x40, 0x80, 0, 0xc0}; - static const u8 arttim_regs[4] = {ARTTIM0, ARTTIM1, ARTTIM23, ARTTIM23}; - static const u8 drwtim_regs[4] = {DRWTIM0, DRWTIM1, DRWTIM2, DRWTIM3}; - struct ide_timing t; - u8 arttim = 0; - - if (drive->dn >= ARRAY_SIZE(drwtim_regs)) - return; - - ide_timing_compute(drive, mode, &t, T, 0); - - /* - * In case we've got too long recovery phase, try to lengthen - * the active phase - */ - if (t.recover > 16) { - t.active += t.recover - 16; - t.recover = 16; - } - if (t.active > 16) /* shouldn't actually happen... */ - t.active = 16; - - /* - * Convert values to internal chipset representation - */ - t.recover = recovery_values[t.recover]; - t.active &= 0x0f; - - /* Program the active/recovery counts into the DRWTIM register */ - pci_write_config_byte(dev, drwtim_regs[drive->dn], - (t.active << 4) | t.recover); - - /* - * The primary channel has individual address setup timing registers - * for each drive and the hardware selects the slowest timing itself. - * The secondary channel has one common register and we have to select - * the slowest address setup timing ourselves. - */ - if (hwif->channel) { - ide_drive_t *pair = ide_get_pair_dev(drive); - - if (pair) { - struct ide_timing tp; - - ide_timing_compute(pair, pair->pio_mode, &tp, T, 0); - ide_timing_merge(&t, &tp, &t, IDE_TIMING_SETUP); - if (pair->dma_mode) { - ide_timing_compute(pair, pair->dma_mode, - &tp, T, 0); - ide_timing_merge(&tp, &t, &t, IDE_TIMING_SETUP); - } - } - } - - if (t.setup > 5) /* shouldn't actually happen... */ - t.setup = 5; - - /* - * Program the address setup clocks into the ARTTIM registers. - * Avoid clearing the secondary channel's interrupt bit. - */ - (void) pci_read_config_byte (dev, arttim_regs[drive->dn], &arttim); - if (hwif->channel) - arttim &= ~ARTTIM23_INTR_CH1; - arttim &= ~0xc0; - arttim |= setup_values[t.setup]; - (void) pci_write_config_byte(dev, arttim_regs[drive->dn], arttim); -} - -/* - * Attempts to set drive's PIO mode. - * Special cases are 8: prefetch off, 9: prefetch on (both never worked) - */ - -static void cmd64x_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - const u8 pio = drive->pio_mode - XFER_PIO_0; - - /* - * Filter out the prefetch control values - * to prevent PIO5 from being programmed - */ - if (pio == 8 || pio == 9) - return; - - cmd64x_program_timings(drive, XFER_PIO_0 + pio); -} - -static void cmd64x_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 unit = drive->dn & 0x01; - u8 regU = 0, pciU = hwif->channel ? UDIDETCR1 : UDIDETCR0; - const u8 speed = drive->dma_mode; - - pci_read_config_byte(dev, pciU, ®U); - regU &= ~(unit ? 0xCA : 0x35); - - switch(speed) { - case XFER_UDMA_5: - regU |= unit ? 0x0A : 0x05; - break; - case XFER_UDMA_4: - regU |= unit ? 0x4A : 0x15; - break; - case XFER_UDMA_3: - regU |= unit ? 0x8A : 0x25; - break; - case XFER_UDMA_2: - regU |= unit ? 0x42 : 0x11; - break; - case XFER_UDMA_1: - regU |= unit ? 0x82 : 0x21; - break; - case XFER_UDMA_0: - regU |= unit ? 0xC2 : 0x31; - break; - case XFER_MW_DMA_2: - case XFER_MW_DMA_1: - case XFER_MW_DMA_0: - cmd64x_program_timings(drive, speed); - break; - } - - pci_write_config_byte(dev, pciU, regU); -} - -static void cmd648_clear_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long base = pci_resource_start(dev, 4); - u8 irq_mask = hwif->channel ? MRDMODE_INTR_CH1 : - MRDMODE_INTR_CH0; - u8 mrdmode = inb(base + 1); - - /* clear the interrupt bit */ - outb((mrdmode & ~(MRDMODE_INTR_CH0 | MRDMODE_INTR_CH1)) | irq_mask, - base + 1); -} - -static void cmd64x_clear_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - int irq_reg = hwif->channel ? ARTTIM23 : CFR; - u8 irq_mask = hwif->channel ? ARTTIM23_INTR_CH1 : - CFR_INTR_CH0; - u8 irq_stat = 0; - - (void) pci_read_config_byte(dev, irq_reg, &irq_stat); - /* clear the interrupt bit */ - (void) pci_write_config_byte(dev, irq_reg, irq_stat | irq_mask); -} - -static int cmd648_test_irq(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long base = pci_resource_start(dev, 4); - u8 irq_mask = hwif->channel ? MRDMODE_INTR_CH1 : - MRDMODE_INTR_CH0; - u8 mrdmode = inb(base + 1); - - pr_debug("%s: mrdmode: 0x%02x irq_mask: 0x%02x\n", - hwif->name, mrdmode, irq_mask); - - return (mrdmode & irq_mask) ? 1 : 0; -} - -static int cmd64x_test_irq(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - int irq_reg = hwif->channel ? ARTTIM23 : CFR; - u8 irq_mask = hwif->channel ? ARTTIM23_INTR_CH1 : - CFR_INTR_CH0; - u8 irq_stat = 0; - - (void) pci_read_config_byte(dev, irq_reg, &irq_stat); - - pr_debug("%s: irq_stat: 0x%02x irq_mask: 0x%02x\n", - hwif->name, irq_stat, irq_mask); - - return (irq_stat & irq_mask) ? 1 : 0; -} - -/* - * ASUS P55T2P4D with CMD646 chipset revision 0x01 requires the old - * event order for DMA transfers. - */ - -static int cmd646_1_dma_end(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 dma_stat = 0, dma_cmd = 0; - - /* get DMA status */ - dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); - /* read DMA command state */ - dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); - /* stop DMA */ - outb(dma_cmd & ~1, hwif->dma_base + ATA_DMA_CMD); - /* clear the INTR & ERROR bits */ - outb(dma_stat | 6, hwif->dma_base + ATA_DMA_STATUS); - /* verify good DMA status */ - return (dma_stat & 7) != 4; -} - -static int init_chipset_cmd64x(struct pci_dev *dev) -{ - u8 mrdmode = 0; - - /* Set a good latency timer and cache line size value. */ - (void) pci_write_config_byte(dev, PCI_LATENCY_TIMER, 64); - /* FIXME: pci_set_master() to ensure a good latency timer value */ - - /* - * Enable interrupts, select MEMORY READ LINE for reads. - * - * NOTE: although not mentioned in the PCI0646U specs, - * bits 0-1 are write only and won't be read back as - * set or not -- PCI0646U2 specs clarify this point. - */ - (void) pci_read_config_byte (dev, MRDMODE, &mrdmode); - mrdmode &= ~0x30; - (void) pci_write_config_byte(dev, MRDMODE, (mrdmode | 0x02)); - - return 0; -} - -static u8 cmd64x_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 bmidecsr = 0, mask = hwif->channel ? 0x02 : 0x01; - - switch (dev->device) { - case PCI_DEVICE_ID_CMD_648: - case PCI_DEVICE_ID_CMD_649: - pci_read_config_byte(dev, BMIDECSR, &bmidecsr); - return (bmidecsr & mask) ? ATA_CBL_PATA80 : ATA_CBL_PATA40; - default: - return ATA_CBL_PATA40; - } -} - -static const struct ide_port_ops cmd64x_port_ops = { - .set_pio_mode = cmd64x_set_pio_mode, - .set_dma_mode = cmd64x_set_dma_mode, - .clear_irq = cmd64x_clear_irq, - .test_irq = cmd64x_test_irq, - .cable_detect = cmd64x_cable_detect, -}; - -static const struct ide_port_ops cmd648_port_ops = { - .set_pio_mode = cmd64x_set_pio_mode, - .set_dma_mode = cmd64x_set_dma_mode, - .clear_irq = cmd648_clear_irq, - .test_irq = cmd648_test_irq, - .cable_detect = cmd64x_cable_detect, -}; - -static const struct ide_dma_ops cmd646_rev1_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = ide_dma_start, - .dma_end = cmd646_1_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = ide_dma_sff_read_status, -}; - -static const struct ide_port_info cmd64x_chipsets[] = { - { /* 0: CMD643 */ - .name = DRV_NAME, - .init_chipset = init_chipset_cmd64x, - .enablebits = {{0x00,0x00,0x00}, {0x51,0x08,0x08}}, - .port_ops = &cmd64x_port_ops, - .host_flags = IDE_HFLAG_CLEAR_SIMPLEX | - IDE_HFLAG_ABUSE_PREFETCH | - IDE_HFLAG_SERIALIZE, - .pio_mask = ATA_PIO5, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = 0x00, /* no udma */ - }, - { /* 1: CMD646 */ - .name = DRV_NAME, - .init_chipset = init_chipset_cmd64x, - .enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}}, - .port_ops = &cmd648_port_ops, - .host_flags = IDE_HFLAG_ABUSE_PREFETCH | - IDE_HFLAG_SERIALIZE, - .pio_mask = ATA_PIO5, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA2, - }, - { /* 2: CMD648 */ - .name = DRV_NAME, - .init_chipset = init_chipset_cmd64x, - .enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}}, - .port_ops = &cmd648_port_ops, - .host_flags = IDE_HFLAG_ABUSE_PREFETCH, - .pio_mask = ATA_PIO5, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA4, - }, - { /* 3: CMD649 */ - .name = DRV_NAME, - .init_chipset = init_chipset_cmd64x, - .enablebits = {{0x51,0x04,0x04}, {0x51,0x08,0x08}}, - .port_ops = &cmd648_port_ops, - .host_flags = IDE_HFLAG_ABUSE_PREFETCH, - .pio_mask = ATA_PIO5, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA5, - } -}; - -static int cmd64x_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct ide_port_info d; - u8 idx = id->driver_data; - - d = cmd64x_chipsets[idx]; - - if (idx == 1) { - /* - * UltraDMA only supported on PCI646U and PCI646U2, which - * correspond to revisions 0x03, 0x05 and 0x07 respectively. - * Actually, although the CMD tech support people won't - * tell me the details, the 0x03 revision cannot support - * UDMA correctly without hardware modifications, and even - * then it only works with Quantum disks due to some - * hold time assumptions in the 646U part which are fixed - * in the 646U2. - * - * So we only do UltraDMA on revision 0x05 and 0x07 chipsets. - */ - if (dev->revision < 5) { - d.udma_mask = 0x00; - /* - * The original PCI0646 didn't have the primary - * channel enable bit, it appeared starting with - * PCI0646U (i.e. revision ID 3). - */ - if (dev->revision < 3) { - d.enablebits[0].reg = 0; - d.port_ops = &cmd64x_port_ops; - if (dev->revision == 1) - d.dma_ops = &cmd646_rev1_dma_ops; - } - } - } - - return ide_pci_init_one(dev, &d, NULL); -} - -static const struct pci_device_id cmd64x_pci_tbl[] = { - { PCI_VDEVICE(CMD, PCI_DEVICE_ID_CMD_643), 0 }, - { PCI_VDEVICE(CMD, PCI_DEVICE_ID_CMD_646), 1 }, - { PCI_VDEVICE(CMD, PCI_DEVICE_ID_CMD_648), 2 }, - { PCI_VDEVICE(CMD, PCI_DEVICE_ID_CMD_649), 3 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, cmd64x_pci_tbl); - -static struct pci_driver cmd64x_pci_driver = { - .name = "CMD64x_IDE", - .id_table = cmd64x_pci_tbl, - .probe = cmd64x_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init cmd64x_ide_init(void) -{ - return ide_pci_register_driver(&cmd64x_pci_driver); -} - -static void __exit cmd64x_ide_exit(void) -{ - pci_unregister_driver(&cmd64x_pci_driver); -} - -module_init(cmd64x_ide_init); -module_exit(cmd64x_ide_exit); - -MODULE_AUTHOR("Eddie Dost, David Miller, Andre Hedrick, Bartlomiej Zolnierkiewicz"); -MODULE_DESCRIPTION("PCI driver module for CMD64x IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/cs5520.c b/drivers/ide/cs5520.c deleted file mode 100644 index 89a4ff100b7a..000000000000 --- a/drivers/ide/cs5520.c +++ /dev/null @@ -1,168 +0,0 @@ -/* - * IDE tuning and bus mastering support for the CS5510/CS5520 - * chipsets - * - * The CS5510/CS5520 are slightly unusual devices. Unlike the - * typical IDE controllers they do bus mastering with the drive in - * PIO mode and smarter silicon. - * - * The practical upshot of this is that we must always tune the - * drive for the right PIO mode. We must also ignore all the blacklists - * and the drive bus mastering DMA information. - * - * *** This driver is strictly experimental *** - * - * (c) Copyright Red Hat Inc 2002 - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * For the avoidance of doubt the "preferred form" of this code is one which - * is in an open non patent encumbered format. Where cryptographic key signing - * forms part of the process of creating an executable the information - * including keys needed to generate an equivalently functional executable - * are deemed to be part of the source code. - * - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/dma-mapping.h> - -#define DRV_NAME "cs5520" - -struct pio_clocks -{ - int address; - int assert; - int recovery; -}; - -static struct pio_clocks cs5520_pio_clocks[]={ - {3, 6, 11}, - {2, 5, 6}, - {1, 4, 3}, - {1, 3, 2}, - {1, 2, 1} -}; - -static void cs5520_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *pdev = to_pci_dev(hwif->dev); - int controller = drive->dn > 1 ? 1 : 0; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - /* 8bit CAT/CRT - 8bit command timing for channel */ - pci_write_config_byte(pdev, 0x62 + controller, - (cs5520_pio_clocks[pio].recovery << 4) | - (cs5520_pio_clocks[pio].assert)); - - /* 0x64 - 16bit Primary, 0x68 - 16bit Secondary */ - - /* FIXME: should these use address ? */ - /* Data read timing */ - pci_write_config_byte(pdev, 0x64 + 4*controller + (drive->dn&1), - (cs5520_pio_clocks[pio].recovery << 4) | - (cs5520_pio_clocks[pio].assert)); - /* Write command timing */ - pci_write_config_byte(pdev, 0x66 + 4*controller + (drive->dn&1), - (cs5520_pio_clocks[pio].recovery << 4) | - (cs5520_pio_clocks[pio].assert)); -} - -static void cs5520_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - printk(KERN_ERR "cs55x0: bad ide timing.\n"); - - drive->pio_mode = XFER_PIO_0 + 0; - cs5520_set_pio_mode(hwif, drive); -} - -static const struct ide_port_ops cs5520_port_ops = { - .set_pio_mode = cs5520_set_pio_mode, - .set_dma_mode = cs5520_set_dma_mode, -}; - -static const struct ide_port_info cyrix_chipset = { - .name = DRV_NAME, - .enablebits = { { 0x60, 0x01, 0x01 }, { 0x60, 0x02, 0x02 } }, - .port_ops = &cs5520_port_ops, - .host_flags = IDE_HFLAG_ISA_PORTS | IDE_HFLAG_CS5520, - .pio_mask = ATA_PIO4, -}; - -/* - * The 5510/5520 are a bit weird. They don't quite set up the way - * the PCI helper layer expects so we must do much of the set up - * work longhand. - */ - -static int cs5520_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - const struct ide_port_info *d = &cyrix_chipset; - struct ide_hw hw[2], *hws[] = { NULL, NULL }; - - ide_setup_pci_noise(dev, d); - - /* We must not grab the entire device, it has 'ISA' space in its - * BARS too and we will freak out other bits of the kernel - */ - if (pci_enable_device_io(dev)) { - printk(KERN_WARNING "%s: Unable to enable 55x0.\n", d->name); - return -ENODEV; - } - pci_set_master(dev); - if (dma_set_mask(&dev->dev, DMA_BIT_MASK(32))) { - printk(KERN_WARNING "%s: No suitable DMA available.\n", - d->name); - return -ENODEV; - } - - /* - * Now the chipset is configured we can let the core - * do all the device setup for us - */ - - ide_pci_setup_ports(dev, d, &hw[0], &hws[0]); - hw[0].irq = 14; - hw[1].irq = 15; - - return ide_host_add(d, hws, 2, NULL); -} - -static const struct pci_device_id cs5520_pci_tbl[] = { - { PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5510), 0 }, - { PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5520), 1 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, cs5520_pci_tbl); - -static struct pci_driver cs5520_pci_driver = { - .name = "Cyrix_IDE", - .id_table = cs5520_pci_tbl, - .probe = cs5520_init_one, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init cs5520_ide_init(void) -{ - return ide_pci_register_driver(&cs5520_pci_driver); -} - -module_init(cs5520_ide_init); - -MODULE_AUTHOR("Alan Cox"); -MODULE_DESCRIPTION("PCI driver module for Cyrix 5510/5520 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/cs5530.c b/drivers/ide/cs5530.c deleted file mode 100644 index 65371599b976..000000000000 --- a/drivers/ide/cs5530.c +++ /dev/null @@ -1,295 +0,0 @@ -/* - * Copyright (C) 2000 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2000 Mark Lord <mlord@pobox.com> - * Copyright (C) 2007 Bartlomiej Zolnierkiewicz - * - * May be copied or modified under the terms of the GNU General Public License - * - * Development of this chipset driver was funded - * by the nice folks at National Semiconductor. - * - * Documentation: - * CS5530 documentation available from National Semiconductor. - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ide.h> - -#include <asm/io.h> - -#define DRV_NAME "cs5530" - -/* - * Here are the standard PIO mode 0-4 timings for each "format". - * Format-0 uses fast data reg timings, with slower command reg timings. - * Format-1 uses fast timings for all registers, but won't work with all drives. - */ -static unsigned int cs5530_pio_timings[2][5] = { - {0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010}, - {0xd1329172, 0x71212171, 0x30200080, 0x20102010, 0x00100010} -}; - -/* - * After chip reset, the PIO timings are set to 0x0000e132, which is not valid. - */ -#define CS5530_BAD_PIO(timings) (((timings)&~0x80000000)==0x0000e132) -#define CS5530_BASEREG(hwif) (((hwif)->dma_base & ~0xf) + ((hwif)->channel ? 0x30 : 0x20)) - -/** - * cs5530_set_pio_mode - set host controller for PIO mode - * @hwif: port - * @drive: drive - * - * Handles setting of PIO mode for the chipset. - * - * The init_hwif_cs5530() routine guarantees that all drives - * will have valid default PIO timings set up before we get here. - */ - -static void cs5530_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - unsigned long basereg = CS5530_BASEREG(hwif); - unsigned int format = (inl(basereg + 4) >> 31) & 1; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - outl(cs5530_pio_timings[format][pio], basereg + ((drive->dn & 1)<<3)); -} - -/** - * cs5530_udma_filter - UDMA filter - * @drive: drive - * - * cs5530_udma_filter() does UDMA mask filtering for the given drive - * taking into the consideration capabilities of the mate device. - * - * The CS5530 specifies that two drives sharing a cable cannot mix - * UDMA/MDMA. It has to be one or the other, for the pair, though - * different timings can still be chosen for each drive. We could - * set the appropriate timing bits on the fly, but that might be - * a bit confusing. So, for now we statically handle this requirement - * by looking at our mate drive to see what it is capable of, before - * choosing a mode for our own drive. - * - * Note: This relies on the fact we never fail from UDMA to MWDMA2 - * but instead drop to PIO. - */ - -static u8 cs5530_udma_filter(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - ide_drive_t *mate = ide_get_pair_dev(drive); - u16 *mateid; - u8 mask = hwif->ultra_mask; - - if (mate == NULL) - goto out; - mateid = mate->id; - - if (ata_id_has_dma(mateid) && __ide_dma_bad_drive(mate) == 0) { - if ((mateid[ATA_ID_FIELD_VALID] & 4) && - (mateid[ATA_ID_UDMA_MODES] & 7)) - goto out; - if (mateid[ATA_ID_MWDMA_MODES] & 7) - mask = 0; - } -out: - return mask; -} - -static void cs5530_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - unsigned long basereg; - unsigned int reg, timings = 0; - - switch (drive->dma_mode) { - case XFER_UDMA_0: timings = 0x00921250; break; - case XFER_UDMA_1: timings = 0x00911140; break; - case XFER_UDMA_2: timings = 0x00911030; break; - case XFER_MW_DMA_0: timings = 0x00077771; break; - case XFER_MW_DMA_1: timings = 0x00012121; break; - case XFER_MW_DMA_2: timings = 0x00002020; break; - } - basereg = CS5530_BASEREG(hwif); - reg = inl(basereg + 4); /* get drive0 config register */ - timings |= reg & 0x80000000; /* preserve PIO format bit */ - if ((drive-> dn & 1) == 0) { /* are we configuring drive0? */ - outl(timings, basereg + 4); /* write drive0 config register */ - } else { - if (timings & 0x00100000) - reg |= 0x00100000; /* enable UDMA timings for both drives */ - else - reg &= ~0x00100000; /* disable UDMA timings for both drives */ - outl(reg, basereg + 4); /* write drive0 config register */ - outl(timings, basereg + 12); /* write drive1 config register */ - } -} - -/** - * init_chipset_5530 - set up 5530 bridge - * @dev: PCI device - * - * Initialize the cs5530 bridge for reliable IDE DMA operation. - */ - -static int init_chipset_cs5530(struct pci_dev *dev) -{ - struct pci_dev *master_0 = NULL, *cs5530_0 = NULL; - - if (pci_resource_start(dev, 4) == 0) - return -EFAULT; - - dev = NULL; - while ((dev = pci_get_device(PCI_VENDOR_ID_CYRIX, PCI_ANY_ID, dev)) != NULL) { - switch (dev->device) { - case PCI_DEVICE_ID_CYRIX_PCI_MASTER: - master_0 = pci_dev_get(dev); - break; - case PCI_DEVICE_ID_CYRIX_5530_LEGACY: - cs5530_0 = pci_dev_get(dev); - break; - } - } - if (!master_0) { - printk(KERN_ERR DRV_NAME ": unable to locate PCI MASTER function\n"); - goto out; - } - if (!cs5530_0) { - printk(KERN_ERR DRV_NAME ": unable to locate CS5530 LEGACY function\n"); - goto out; - } - - /* - * Enable BusMaster and MemoryWriteAndInvalidate for the cs5530: - * --> OR 0x14 into 16-bit PCI COMMAND reg of function 0 of the cs5530 - */ - - pci_set_master(cs5530_0); - pci_try_set_mwi(cs5530_0); - - /* - * Set PCI CacheLineSize to 16-bytes: - * --> Write 0x04 into 8-bit PCI CACHELINESIZE reg of function 0 of the cs5530 - */ - - pci_write_config_byte(cs5530_0, PCI_CACHE_LINE_SIZE, 0x04); - - /* - * Disable trapping of UDMA register accesses (Win98 hack): - * --> Write 0x5006 into 16-bit reg at offset 0xd0 of function 0 of the cs5530 - */ - - pci_write_config_word(cs5530_0, 0xd0, 0x5006); - - /* - * Bit-1 at 0x40 enables MemoryWriteAndInvalidate on internal X-bus: - * The other settings are what is necessary to get the register - * into a sane state for IDE DMA operation. - */ - - pci_write_config_byte(master_0, 0x40, 0x1e); - - /* - * Set max PCI burst size (16-bytes seems to work best): - * 16bytes: set bit-1 at 0x41 (reg value of 0x16) - * all others: clear bit-1 at 0x41, and do: - * 128bytes: OR 0x00 at 0x41 - * 256bytes: OR 0x04 at 0x41 - * 512bytes: OR 0x08 at 0x41 - * 1024bytes: OR 0x0c at 0x41 - */ - - pci_write_config_byte(master_0, 0x41, 0x14); - - /* - * These settings are necessary to get the chip - * into a sane state for IDE DMA operation. - */ - - pci_write_config_byte(master_0, 0x42, 0x00); - pci_write_config_byte(master_0, 0x43, 0xc1); - -out: - pci_dev_put(master_0); - pci_dev_put(cs5530_0); - return 0; -} - -/** - * init_hwif_cs5530 - initialise an IDE channel - * @hwif: IDE to initialize - * - * This gets invoked by the IDE driver once for each channel. It - * performs channel-specific pre-initialization before drive probing. - */ - -static void init_hwif_cs5530 (ide_hwif_t *hwif) -{ - unsigned long basereg; - u32 d0_timings; - - basereg = CS5530_BASEREG(hwif); - d0_timings = inl(basereg + 0); - if (CS5530_BAD_PIO(d0_timings)) - outl(cs5530_pio_timings[(d0_timings >> 31) & 1][0], basereg + 0); - if (CS5530_BAD_PIO(inl(basereg + 8))) - outl(cs5530_pio_timings[(d0_timings >> 31) & 1][0], basereg + 8); -} - -static const struct ide_port_ops cs5530_port_ops = { - .set_pio_mode = cs5530_set_pio_mode, - .set_dma_mode = cs5530_set_dma_mode, - .udma_filter = cs5530_udma_filter, -}; - -static const struct ide_port_info cs5530_chipset = { - .name = DRV_NAME, - .init_chipset = init_chipset_cs5530, - .init_hwif = init_hwif_cs5530, - .port_ops = &cs5530_port_ops, - .host_flags = IDE_HFLAG_SERIALIZE | - IDE_HFLAG_POST_SET_MODE, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA2, -}; - -static int cs5530_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - return ide_pci_init_one(dev, &cs5530_chipset, NULL); -} - -static const struct pci_device_id cs5530_pci_tbl[] = { - { PCI_VDEVICE(CYRIX, PCI_DEVICE_ID_CYRIX_5530_IDE), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, cs5530_pci_tbl); - -static struct pci_driver cs5530_pci_driver = { - .name = "CS5530 IDE", - .id_table = cs5530_pci_tbl, - .probe = cs5530_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init cs5530_ide_init(void) -{ - return ide_pci_register_driver(&cs5530_pci_driver); -} - -static void __exit cs5530_ide_exit(void) -{ - pci_unregister_driver(&cs5530_pci_driver); -} - -module_init(cs5530_ide_init); -module_exit(cs5530_ide_exit); - -MODULE_AUTHOR("Mark Lord"); -MODULE_DESCRIPTION("PCI driver module for Cyrix/NS 5530 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/cs5535.c b/drivers/ide/cs5535.c deleted file mode 100644 index 70fdbe3161f8..000000000000 --- a/drivers/ide/cs5535.c +++ /dev/null @@ -1,216 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 2004-2005 Advanced Micro Devices, Inc. - * Copyright (C) 2007 Bartlomiej Zolnierkiewicz - * - * History: - * 09/20/2005 - Jaya Kumar <jayakumar.ide@gmail.com> - * - Reworked tuneproc, set_drive, misc mods to prep for mainline - * - Work was sponsored by CIS (M) Sdn Bhd. - * Ported to Kernel 2.6.11 on June 26, 2005 by - * Wolfgang Zuleger <wolfgang.zuleger@gmx.de> - * Alexander Kiausch <alex.kiausch@t-online.de> - * Originally developed by AMD for 2.4/2.6 - * - * Development of this chipset driver was funded - * by the nice folks at National Semiconductor/AMD. - * - * Documentation: - * CS5535 documentation available from AMD - */ - -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/ide.h> - -#define DRV_NAME "cs5535" - -#define MSR_ATAC_BASE 0x51300000 -#define ATAC_GLD_MSR_CAP (MSR_ATAC_BASE+0) -#define ATAC_GLD_MSR_CONFIG (MSR_ATAC_BASE+0x01) -#define ATAC_GLD_MSR_SMI (MSR_ATAC_BASE+0x02) -#define ATAC_GLD_MSR_ERROR (MSR_ATAC_BASE+0x03) -#define ATAC_GLD_MSR_PM (MSR_ATAC_BASE+0x04) -#define ATAC_GLD_MSR_DIAG (MSR_ATAC_BASE+0x05) -#define ATAC_IO_BAR (MSR_ATAC_BASE+0x08) -#define ATAC_RESET (MSR_ATAC_BASE+0x10) -#define ATAC_CH0D0_PIO (MSR_ATAC_BASE+0x20) -#define ATAC_CH0D0_DMA (MSR_ATAC_BASE+0x21) -#define ATAC_CH0D1_PIO (MSR_ATAC_BASE+0x22) -#define ATAC_CH0D1_DMA (MSR_ATAC_BASE+0x23) -#define ATAC_PCI_ABRTERR (MSR_ATAC_BASE+0x24) -#define ATAC_BM0_CMD_PRIM 0x00 -#define ATAC_BM0_STS_PRIM 0x02 -#define ATAC_BM0_PRD 0x04 -#define CS5535_CABLE_DETECT 0x48 - -/* Format I PIO settings. We separate out cmd and data for safer timings */ - -static unsigned int cs5535_pio_cmd_timings[5] = -{ 0xF7F4, 0x53F3, 0x13F1, 0x5131, 0x1131 }; -static unsigned int cs5535_pio_dta_timings[5] = -{ 0xF7F4, 0xF173, 0x8141, 0x5131, 0x1131 }; - -static unsigned int cs5535_mwdma_timings[3] = -{ 0x7F0FFFF3, 0x7F035352, 0x7f024241 }; - -static unsigned int cs5535_udma_timings[5] = -{ 0x7F7436A1, 0x7F733481, 0x7F723261, 0x7F713161, 0x7F703061 }; - -/* Macros to check if the register is the reset value - reset value is an - invalid timing and indicates the register has not been set previously */ - -#define CS5535_BAD_PIO(timings) ( (timings&~0x80000000UL) == 0x00009172 ) -#define CS5535_BAD_DMA(timings) ( (timings & 0x000FFFFF) == 0x00077771 ) - -/**** - * cs5535_set_speed - Configure the chipset to the new speed - * @drive: Drive to set up - * @speed: desired speed - * - * cs5535_set_speed() configures the chipset to a new speed. - */ -static void cs5535_set_speed(ide_drive_t *drive, const u8 speed) -{ - u32 reg = 0, dummy; - u8 unit = drive->dn & 1; - - /* Set the PIO timings */ - if (speed < XFER_SW_DMA_0) { - ide_drive_t *pair = ide_get_pair_dev(drive); - u8 cmd, pioa; - - cmd = pioa = speed - XFER_PIO_0; - - if (pair) { - u8 piob = pair->pio_mode - XFER_PIO_0; - - if (piob < cmd) - cmd = piob; - } - - /* Write the speed of the current drive */ - reg = (cs5535_pio_cmd_timings[cmd] << 16) | - cs5535_pio_dta_timings[pioa]; - wrmsr(unit ? ATAC_CH0D1_PIO : ATAC_CH0D0_PIO, reg, 0); - - /* And if nessesary - change the speed of the other drive */ - rdmsr(unit ? ATAC_CH0D0_PIO : ATAC_CH0D1_PIO, reg, dummy); - - if (((reg >> 16) & cs5535_pio_cmd_timings[cmd]) != - cs5535_pio_cmd_timings[cmd]) { - reg &= 0x0000FFFF; - reg |= cs5535_pio_cmd_timings[cmd] << 16; - wrmsr(unit ? ATAC_CH0D0_PIO : ATAC_CH0D1_PIO, reg, 0); - } - - /* Set bit 31 of the DMA register for PIO format 1 timings */ - rdmsr(unit ? ATAC_CH0D1_DMA : ATAC_CH0D0_DMA, reg, dummy); - wrmsr(unit ? ATAC_CH0D1_DMA : ATAC_CH0D0_DMA, - reg | 0x80000000UL, 0); - } else { - rdmsr(unit ? ATAC_CH0D1_DMA : ATAC_CH0D0_DMA, reg, dummy); - - reg &= 0x80000000UL; /* Preserve the PIO format bit */ - - if (speed >= XFER_UDMA_0 && speed <= XFER_UDMA_4) - reg |= cs5535_udma_timings[speed - XFER_UDMA_0]; - else if (speed >= XFER_MW_DMA_0 && speed <= XFER_MW_DMA_2) - reg |= cs5535_mwdma_timings[speed - XFER_MW_DMA_0]; - else - return; - - wrmsr(unit ? ATAC_CH0D1_DMA : ATAC_CH0D0_DMA, reg, 0); - } -} - -/** - * cs5535_set_dma_mode - set host controller for DMA mode - * @hwif: port - * @drive: drive - * - * Programs the chipset for DMA mode. - */ - -static void cs5535_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - cs5535_set_speed(drive, drive->dma_mode); -} - -/** - * cs5535_set_pio_mode - set host controller for PIO mode - * @hwif: port - * @drive: drive - * - * A callback from the upper layers for PIO-only tuning. - */ - -static void cs5535_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - cs5535_set_speed(drive, drive->pio_mode); -} - -static u8 cs5535_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 bit; - - /* if a 80 wire cable was detected */ - pci_read_config_byte(dev, CS5535_CABLE_DETECT, &bit); - - return (bit & 1) ? ATA_CBL_PATA80 : ATA_CBL_PATA40; -} - -static const struct ide_port_ops cs5535_port_ops = { - .set_pio_mode = cs5535_set_pio_mode, - .set_dma_mode = cs5535_set_dma_mode, - .cable_detect = cs5535_cable_detect, -}; - -static const struct ide_port_info cs5535_chipset = { - .name = DRV_NAME, - .port_ops = &cs5535_port_ops, - .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_POST_SET_MODE, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA4, -}; - -static int cs5535_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - return ide_pci_init_one(dev, &cs5535_chipset, NULL); -} - -static const struct pci_device_id cs5535_pci_tbl[] = { - { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_CS5535_IDE), 0 }, - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5535_IDE), }, - { 0, }, -}; - -MODULE_DEVICE_TABLE(pci, cs5535_pci_tbl); - -static struct pci_driver cs5535_pci_driver = { - .name = "CS5535_IDE", - .id_table = cs5535_pci_tbl, - .probe = cs5535_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init cs5535_ide_init(void) -{ - return ide_pci_register_driver(&cs5535_pci_driver); -} - -static void __exit cs5535_ide_exit(void) -{ - pci_unregister_driver(&cs5535_pci_driver); -} - -module_init(cs5535_ide_init); -module_exit(cs5535_ide_exit); - -MODULE_AUTHOR("AMD"); -MODULE_DESCRIPTION("PCI driver module for AMD/NS CS5535 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/cs5536.c b/drivers/ide/cs5536.c deleted file mode 100644 index 8b5ca145191b..000000000000 --- a/drivers/ide/cs5536.c +++ /dev/null @@ -1,294 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * CS5536 PATA support - * (C) 2007 Martin K. Petersen <mkp@mkp.net> - * (C) 2009 Bartlomiej Zolnierkiewicz - * - * Documentation: - * Available from AMD web site. - * - * The IDE timing registers for the CS5536 live in the Geode Machine - * Specific Register file and not PCI config space. Most BIOSes - * virtualize the PCI registers so the chip looks like a standard IDE - * controller. Unfortunately not all implementations get this right. - * In particular some have problems with unaligned accesses to the - * virtualized PCI registers. This driver always does full dword - * writes to work around the issue. Also, in case of a bad BIOS this - * driver can be loaded with the "msr=1" parameter which forces using - * the Machine Specific Registers to configure the device. - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ide.h> -#include <asm/msr.h> - -#define DRV_NAME "cs5536" - -enum { - MSR_IDE_CFG = 0x51300010, - PCI_IDE_CFG = 0x40, - - CFG = 0, - DTC = 2, - CAST = 3, - ETC = 4, - - IDE_CFG_CHANEN = (1 << 1), - IDE_CFG_CABLE = (1 << 17) | (1 << 16), - - IDE_D0_SHIFT = 24, - IDE_D1_SHIFT = 16, - IDE_DRV_MASK = 0xff, - - IDE_CAST_D0_SHIFT = 6, - IDE_CAST_D1_SHIFT = 4, - IDE_CAST_DRV_MASK = 0x3, - - IDE_CAST_CMD_SHIFT = 24, - IDE_CAST_CMD_MASK = 0xff, - - IDE_ETC_UDMA_MASK = 0xc0, -}; - -static int use_msr; - -static int cs5536_read(struct pci_dev *pdev, int reg, u32 *val) -{ - if (unlikely(use_msr)) { - u32 dummy; - - rdmsr(MSR_IDE_CFG + reg, *val, dummy); - return 0; - } - - return pci_read_config_dword(pdev, PCI_IDE_CFG + reg * 4, val); -} - -static int cs5536_write(struct pci_dev *pdev, int reg, int val) -{ - if (unlikely(use_msr)) { - wrmsr(MSR_IDE_CFG + reg, val, 0); - return 0; - } - - return pci_write_config_dword(pdev, PCI_IDE_CFG + reg * 4, val); -} - -static void cs5536_program_dtc(ide_drive_t *drive, u8 tim) -{ - struct pci_dev *pdev = to_pci_dev(drive->hwif->dev); - int dshift = (drive->dn & 1) ? IDE_D1_SHIFT : IDE_D0_SHIFT; - u32 dtc; - - cs5536_read(pdev, DTC, &dtc); - dtc &= ~(IDE_DRV_MASK << dshift); - dtc |= tim << dshift; - cs5536_write(pdev, DTC, dtc); -} - -/** - * cs5536_cable_detect - detect cable type - * @hwif: Port to detect on - * - * Perform cable detection for ATA66 capable cable. - * - * Returns a cable type. - */ - -static u8 cs5536_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *pdev = to_pci_dev(hwif->dev); - u32 cfg; - - cs5536_read(pdev, CFG, &cfg); - - if (cfg & IDE_CFG_CABLE) - return ATA_CBL_PATA80; - else - return ATA_CBL_PATA40; -} - -/** - * cs5536_set_pio_mode - PIO timing setup - * @hwif: ATA port - * @drive: ATA device - */ - -static void cs5536_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - static const u8 drv_timings[5] = { - 0x98, 0x55, 0x32, 0x21, 0x20, - }; - - static const u8 addr_timings[5] = { - 0x2, 0x1, 0x0, 0x0, 0x0, - }; - - static const u8 cmd_timings[5] = { - 0x99, 0x92, 0x90, 0x22, 0x20, - }; - - struct pci_dev *pdev = to_pci_dev(hwif->dev); - ide_drive_t *pair = ide_get_pair_dev(drive); - int cshift = (drive->dn & 1) ? IDE_CAST_D1_SHIFT : IDE_CAST_D0_SHIFT; - unsigned long timings = (unsigned long)ide_get_drivedata(drive); - u32 cast; - const u8 pio = drive->pio_mode - XFER_PIO_0; - u8 cmd_pio = pio; - - if (pair) - cmd_pio = min_t(u8, pio, pair->pio_mode - XFER_PIO_0); - - timings &= (IDE_DRV_MASK << 8); - timings |= drv_timings[pio]; - ide_set_drivedata(drive, (void *)timings); - - cs5536_program_dtc(drive, drv_timings[pio]); - - cs5536_read(pdev, CAST, &cast); - - cast &= ~(IDE_CAST_DRV_MASK << cshift); - cast |= addr_timings[pio] << cshift; - - cast &= ~(IDE_CAST_CMD_MASK << IDE_CAST_CMD_SHIFT); - cast |= cmd_timings[cmd_pio] << IDE_CAST_CMD_SHIFT; - - cs5536_write(pdev, CAST, cast); -} - -/** - * cs5536_set_dma_mode - DMA timing setup - * @hwif: ATA port - * @drive: ATA device - */ - -static void cs5536_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - static const u8 udma_timings[6] = { - 0xc2, 0xc1, 0xc0, 0xc4, 0xc5, 0xc6, - }; - - static const u8 mwdma_timings[3] = { - 0x67, 0x21, 0x20, - }; - - struct pci_dev *pdev = to_pci_dev(hwif->dev); - int dshift = (drive->dn & 1) ? IDE_D1_SHIFT : IDE_D0_SHIFT; - unsigned long timings = (unsigned long)ide_get_drivedata(drive); - u32 etc; - const u8 mode = drive->dma_mode; - - cs5536_read(pdev, ETC, &etc); - - if (mode >= XFER_UDMA_0) { - etc &= ~(IDE_DRV_MASK << dshift); - etc |= udma_timings[mode - XFER_UDMA_0] << dshift; - } else { /* MWDMA */ - etc &= ~(IDE_ETC_UDMA_MASK << dshift); - timings &= IDE_DRV_MASK; - timings |= mwdma_timings[mode - XFER_MW_DMA_0] << 8; - ide_set_drivedata(drive, (void *)timings); - } - - cs5536_write(pdev, ETC, etc); -} - -static void cs5536_dma_start(ide_drive_t *drive) -{ - unsigned long timings = (unsigned long)ide_get_drivedata(drive); - - if (drive->current_speed < XFER_UDMA_0 && - (timings >> 8) != (timings & IDE_DRV_MASK)) - cs5536_program_dtc(drive, timings >> 8); - - ide_dma_start(drive); -} - -static int cs5536_dma_end(ide_drive_t *drive) -{ - int ret = ide_dma_end(drive); - unsigned long timings = (unsigned long)ide_get_drivedata(drive); - - if (drive->current_speed < XFER_UDMA_0 && - (timings >> 8) != (timings & IDE_DRV_MASK)) - cs5536_program_dtc(drive, timings & IDE_DRV_MASK); - - return ret; -} - -static const struct ide_port_ops cs5536_port_ops = { - .set_pio_mode = cs5536_set_pio_mode, - .set_dma_mode = cs5536_set_dma_mode, - .cable_detect = cs5536_cable_detect, -}; - -static const struct ide_dma_ops cs5536_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = cs5536_dma_start, - .dma_end = cs5536_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = ide_dma_sff_read_status, -}; - -static const struct ide_port_info cs5536_info = { - .name = DRV_NAME, - .port_ops = &cs5536_port_ops, - .dma_ops = &cs5536_dma_ops, - .host_flags = IDE_HFLAG_SINGLE, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA5, -}; - -/** - * cs5536_init_one - * @dev: PCI device - * @id: Entry in match table - */ - -static int cs5536_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - u32 cfg; - - if (use_msr) - printk(KERN_INFO DRV_NAME ": Using MSR regs instead of PCI\n"); - - cs5536_read(dev, CFG, &cfg); - - if ((cfg & IDE_CFG_CHANEN) == 0) { - printk(KERN_ERR DRV_NAME ": disabled by BIOS\n"); - return -ENODEV; - } - - return ide_pci_init_one(dev, &cs5536_info, NULL); -} - -static const struct pci_device_id cs5536_pci_tbl[] = { - { PCI_VDEVICE(AMD, PCI_DEVICE_ID_AMD_CS5536_IDE), }, - { }, -}; - -static struct pci_driver cs5536_pci_driver = { - .name = DRV_NAME, - .id_table = cs5536_pci_tbl, - .probe = cs5536_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -module_pci_driver(cs5536_pci_driver); - -MODULE_AUTHOR("Martin K. Petersen, Bartlomiej Zolnierkiewicz"); -MODULE_DESCRIPTION("low-level driver for the CS5536 IDE controller"); -MODULE_LICENSE("GPL"); -MODULE_DEVICE_TABLE(pci, cs5536_pci_tbl); - -module_param_named(msr, use_msr, int, 0644); -MODULE_PARM_DESC(msr, "Force using MSR to configure IDE function (Default: 0)"); diff --git a/drivers/ide/cy82c693.c b/drivers/ide/cy82c693.c deleted file mode 100644 index bc01660ee8fd..000000000000 --- a/drivers/ide/cy82c693.c +++ /dev/null @@ -1,234 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1998-2000 Andreas S. Krebs (akrebs@altavista.net), Maintainer - * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org>, Integrator - * Copyright (C) 2007-2011 Bartlomiej Zolnierkiewicz - * - * CYPRESS CY82C693 chipset IDE controller - * - * The CY82C693 chipset is used on Digital's PC-Alpha 164SX boards. - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#include <asm/io.h> - -#define DRV_NAME "cy82c693" - -/* - * NOTE: the value for busmaster timeout is tricky and I got it by - * trial and error! By using a to low value will cause DMA timeouts - * and drop IDE performance, and by using a to high value will cause - * audio playback to scatter. - * If you know a better value or how to calc it, please let me know. - */ - -/* twice the value written in cy82c693ub datasheet */ -#define BUSMASTER_TIMEOUT 0x50 -/* - * the value above was tested on my machine and it seems to work okay - */ - -/* here are the offset definitions for the registers */ -#define CY82_IDE_CMDREG 0x04 -#define CY82_IDE_ADDRSETUP 0x48 -#define CY82_IDE_MASTER_IOR 0x4C -#define CY82_IDE_MASTER_IOW 0x4D -#define CY82_IDE_SLAVE_IOR 0x4E -#define CY82_IDE_SLAVE_IOW 0x4F -#define CY82_IDE_MASTER_8BIT 0x50 -#define CY82_IDE_SLAVE_8BIT 0x51 - -#define CY82_INDEX_PORT 0x22 -#define CY82_DATA_PORT 0x23 - -#define CY82_INDEX_CHANNEL0 0x30 -#define CY82_INDEX_CHANNEL1 0x31 -#define CY82_INDEX_TIMEOUT 0x32 - -/* - * set DMA mode a specific channel for CY82C693 - */ - -static void cy82c693_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - const u8 mode = drive->dma_mode; - u8 single = (mode & 0x10) >> 4, index = 0, data = 0; - - index = hwif->channel ? CY82_INDEX_CHANNEL1 : CY82_INDEX_CHANNEL0; - - data = (mode & 3) | (single << 2); - - outb(index, CY82_INDEX_PORT); - outb(data, CY82_DATA_PORT); - - /* - * note: below we set the value for Bus Master IDE TimeOut Register - * I'm not absolutely sure what this does, but it solved my problem - * with IDE DMA and sound, so I now can play sound and work with - * my IDE driver at the same time :-) - * - * If you know the correct (best) value for this register please - * let me know - ASK - */ - - data = BUSMASTER_TIMEOUT; - outb(CY82_INDEX_TIMEOUT, CY82_INDEX_PORT); - outb(data, CY82_DATA_PORT); -} - -static void cy82c693_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - int bus_speed = ide_pci_clk ? ide_pci_clk : 33; - const unsigned long T = 1000000 / bus_speed; - unsigned int addrCtrl; - struct ide_timing t; - u8 time_16, time_8; - - /* select primary or secondary channel */ - if (drive->dn > 1) { /* drive is on the secondary channel */ - dev = pci_get_slot(dev->bus, dev->devfn+1); - if (!dev) { - printk(KERN_ERR "%s: tune_drive: " - "Cannot find secondary interface!\n", - drive->name); - return; - } - } - - ide_timing_compute(drive, drive->pio_mode, &t, T, 1); - - time_16 = clamp_val(t.recover - 1, 0, 15) | - (clamp_val(t.active - 1, 0, 15) << 4); - time_8 = clamp_val(t.act8b - 1, 0, 15) | - (clamp_val(t.rec8b - 1, 0, 15) << 4); - - /* now let's write the clocks registers */ - if ((drive->dn & 1) == 0) { - /* - * set master drive - * address setup control register - * is 32 bit !!! - */ - pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl); - - addrCtrl &= (~0xF); - addrCtrl |= clamp_val(t.setup - 1, 0, 15); - pci_write_config_dword(dev, CY82_IDE_ADDRSETUP, addrCtrl); - - /* now let's set the remaining registers */ - pci_write_config_byte(dev, CY82_IDE_MASTER_IOR, time_16); - pci_write_config_byte(dev, CY82_IDE_MASTER_IOW, time_16); - pci_write_config_byte(dev, CY82_IDE_MASTER_8BIT, time_8); - } else { - /* - * set slave drive - * address setup control register - * is 32 bit !!! - */ - pci_read_config_dword(dev, CY82_IDE_ADDRSETUP, &addrCtrl); - - addrCtrl &= (~0xF0); - addrCtrl |= (clamp_val(t.setup - 1, 0, 15) << 4); - pci_write_config_dword(dev, CY82_IDE_ADDRSETUP, addrCtrl); - - /* now let's set the remaining registers */ - pci_write_config_byte(dev, CY82_IDE_SLAVE_IOR, time_16); - pci_write_config_byte(dev, CY82_IDE_SLAVE_IOW, time_16); - pci_write_config_byte(dev, CY82_IDE_SLAVE_8BIT, time_8); - } - if (drive->dn > 1) - pci_dev_put(dev); -} - -static void init_iops_cy82c693(ide_hwif_t *hwif) -{ - static ide_hwif_t *primary; - struct pci_dev *dev = to_pci_dev(hwif->dev); - - if (PCI_FUNC(dev->devfn) == 1) - primary = hwif; - else { - hwif->mate = primary; - hwif->channel = 1; - } -} - -static const struct ide_port_ops cy82c693_port_ops = { - .set_pio_mode = cy82c693_set_pio_mode, - .set_dma_mode = cy82c693_set_dma_mode, -}; - -static const struct ide_port_info cy82c693_chipset = { - .name = DRV_NAME, - .init_iops = init_iops_cy82c693, - .port_ops = &cy82c693_port_ops, - .host_flags = IDE_HFLAG_SINGLE, - .pio_mask = ATA_PIO4, - .swdma_mask = ATA_SWDMA2, - .mwdma_mask = ATA_MWDMA2, -}; - -static int cy82c693_init_one(struct pci_dev *dev, - const struct pci_device_id *id) -{ - struct pci_dev *dev2; - int ret = -ENODEV; - - /* CY82C693 is more than only a IDE controller. - Function 1 is primary IDE channel, function 2 - secondary. */ - if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && - PCI_FUNC(dev->devfn) == 1) { - dev2 = pci_get_slot(dev->bus, dev->devfn + 1); - ret = ide_pci_init_two(dev, dev2, &cy82c693_chipset, NULL); - if (ret) - pci_dev_put(dev2); - } - return ret; -} - -static void cy82c693_remove(struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL; - - ide_pci_remove(dev); - pci_dev_put(dev2); -} - -static const struct pci_device_id cy82c693_pci_tbl[] = { - { PCI_VDEVICE(CONTAQ, PCI_DEVICE_ID_CONTAQ_82C693), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, cy82c693_pci_tbl); - -static struct pci_driver cy82c693_pci_driver = { - .name = "Cypress_IDE", - .id_table = cy82c693_pci_tbl, - .probe = cy82c693_init_one, - .remove = cy82c693_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init cy82c693_ide_init(void) -{ - return ide_pci_register_driver(&cy82c693_pci_driver); -} - -static void __exit cy82c693_ide_exit(void) -{ - pci_unregister_driver(&cy82c693_pci_driver); -} - -module_init(cy82c693_ide_init); -module_exit(cy82c693_ide_exit); - -MODULE_AUTHOR("Andreas Krebs, Andre Hedrick, Bartlomiej Zolnierkiewicz"); -MODULE_DESCRIPTION("PCI driver module for the Cypress CY82C693 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/delkin_cb.c b/drivers/ide/delkin_cb.c deleted file mode 100644 index 300daabaa575..000000000000 --- a/drivers/ide/delkin_cb.c +++ /dev/null @@ -1,181 +0,0 @@ -/* - * Created 20 Oct 2004 by Mark Lord - * - * Basic support for Delkin/ASKA/Workbit Cardbus CompactFlash adapter - * - * Modeled after the 16-bit PCMCIA driver: ide-cs.c - * - * This is slightly peculiar, in that it is a PCI driver, - * but is NOT an IDE PCI driver -- the IDE layer does not directly - * support hot insertion/removal of PCI interfaces, so this driver - * is unable to use the IDE PCI interfaces. Instead, it uses the - * same interfaces as the ide-cs (PCMCIA) driver uses. - * On the plus side, the driver is also smaller/simpler this way. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive for - * more details. - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/ide.h> -#include <linux/init.h> -#include <linux/pci.h> - -#include <asm/io.h> - -/* - * No chip documentation has yet been found, - * so these configuration values were pulled from - * a running Win98 system using "debug". - * This gives around 3MByte/second read performance, - * which is about 2/3 of what the chip is capable of. - * - * There is also a 4KByte mmio region on the card, - * but its purpose has yet to be reverse-engineered. - */ -static const u8 setup[] = { - 0x00, 0x05, 0xbe, 0x01, 0x20, 0x8f, 0x00, 0x00, - 0xa4, 0x1f, 0xb3, 0x1b, 0x00, 0x00, 0x00, 0x80, - 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, - 0x00, 0x00, 0x00, 0x00, 0xa4, 0x83, 0x02, 0x13, -}; - -static const struct ide_port_ops delkin_cb_port_ops = { - .quirkproc = ide_undecoded_slave, -}; - -static int delkin_cb_init_chipset(struct pci_dev *dev) -{ - unsigned long base = pci_resource_start(dev, 0); - int i; - - outb(0x02, base + 0x1e); /* set nIEN to block interrupts */ - inb(base + 0x17); /* read status to clear interrupts */ - - for (i = 0; i < sizeof(setup); ++i) { - if (setup[i]) - outb(setup[i], base + i); - } - - return 0; -} - -static const struct ide_port_info delkin_cb_port_info = { - .port_ops = &delkin_cb_port_ops, - .host_flags = IDE_HFLAG_IO_32BIT | IDE_HFLAG_UNMASK_IRQS | - IDE_HFLAG_NO_DMA, - .irq_flags = IRQF_SHARED, - .init_chipset = delkin_cb_init_chipset, - .chipset = ide_pci, -}; - -static int delkin_cb_probe(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct ide_host *host; - unsigned long base; - int rc; - struct ide_hw hw, *hws[] = { &hw }; - - rc = pci_enable_device(dev); - if (rc) { - printk(KERN_ERR "delkin_cb: pci_enable_device failed (%d)\n", rc); - return rc; - } - rc = pci_request_regions(dev, "delkin_cb"); - if (rc) { - printk(KERN_ERR "delkin_cb: pci_request_regions failed (%d)\n", rc); - pci_disable_device(dev); - return rc; - } - base = pci_resource_start(dev, 0); - - delkin_cb_init_chipset(dev); - - memset(&hw, 0, sizeof(hw)); - ide_std_init_ports(&hw, base + 0x10, base + 0x1e); - hw.irq = dev->irq; - hw.dev = &dev->dev; - - rc = ide_host_add(&delkin_cb_port_info, hws, 1, &host); - if (rc) - goto out_disable; - - pci_set_drvdata(dev, host); - - return 0; - -out_disable: - pci_release_regions(dev); - pci_disable_device(dev); - return rc; -} - -static void -delkin_cb_remove (struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - - ide_host_remove(host); - - pci_release_regions(dev); - pci_disable_device(dev); -} - -#ifdef CONFIG_PM -static int delkin_cb_suspend(struct pci_dev *dev, pm_message_t state) -{ - pci_save_state(dev); - pci_disable_device(dev); - pci_set_power_state(dev, pci_choose_state(dev, state)); - - return 0; -} - -static int delkin_cb_resume(struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - int rc; - - pci_set_power_state(dev, PCI_D0); - - rc = pci_enable_device(dev); - if (rc) - return rc; - - pci_restore_state(dev); - pci_set_master(dev); - - if (host->init_chipset) - host->init_chipset(dev); - - return 0; -} -#else -#define delkin_cb_suspend NULL -#define delkin_cb_resume NULL -#endif - -static struct pci_device_id delkin_cb_pci_tbl[] = { - { 0x1145, 0xf021, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - { 0x1145, 0xf024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, delkin_cb_pci_tbl); - -static struct pci_driver delkin_cb_pci_driver = { - .name = "Delkin-ASKA-Workbit Cardbus IDE", - .id_table = delkin_cb_pci_tbl, - .probe = delkin_cb_probe, - .remove = delkin_cb_remove, - .suspend = delkin_cb_suspend, - .resume = delkin_cb_resume, -}; - -module_pci_driver(delkin_cb_pci_driver); - -MODULE_AUTHOR("Mark Lord"); -MODULE_DESCRIPTION("Basic support for Delkin/ASKA/Workbit Cardbus IDE"); -MODULE_LICENSE("GPL"); - diff --git a/drivers/ide/dtc2278.c b/drivers/ide/dtc2278.c deleted file mode 100644 index 714e8cd0fa49..000000000000 --- a/drivers/ide/dtc2278.c +++ /dev/null @@ -1,155 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1996 Linus Torvalds & author (see below) - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/ioport.h> -#include <linux/blkdev.h> -#include <linux/ide.h> -#include <linux/init.h> - -#include <asm/io.h> - -#define DRV_NAME "dtc2278" - -/* - * Changing this #undef to #define may solve start up problems in some systems. - */ -#undef ALWAYS_SET_DTC2278_PIO_MODE - -/* - * From: andy@cercle.cts.com (Dyan Wile) - * - * Below is a patch for DTC-2278 - alike software-programmable controllers - * The code enables the secondary IDE controller and the PIO4 (3?) timings on - * the primary (EIDE). You may probably have to enable the 32-bit support to - * get the full speed. You better get the disk interrupts disabled ( hdparm -u0 - * /dev/hd.. ) for the drives connected to the EIDE interface. (I get my - * filesystem corrupted with -u1, but under heavy disk load only :-) - * - * This card is now forced to use the "serialize" feature, - * and irq-unmasking is disallowed. If io_32bit is enabled, - * it must be done for BOTH drives on each interface. - * - * This code was written for the DTC2278E, but might work with any of these: - * - * DTC2278S has only a single IDE interface. - * DTC2278D has two IDE interfaces and is otherwise identical to the S version. - * DTC2278E also has serial ports and a printer port - * DTC2278EB: has onboard BIOS, and "works like a charm" -- Kent Bradford <kent@theory.caltech.edu> - * - * There may be a fourth controller type. The S and D versions use the - * Winbond chip, and I think the E version does also. - * - */ - -static void sub22 (char b, char c) -{ - int i; - - for(i = 0; i < 3; ++i) { - inb(0x3f6); - outb_p(b,0xb0); - inb(0x3f6); - outb_p(c,0xb4); - inb(0x3f6); - if(inb(0xb4) == c) { - outb_p(7,0xb0); - inb(0x3f6); - return; /* success */ - } - } -} - -static DEFINE_SPINLOCK(dtc2278_lock); - -static void dtc2278_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - unsigned long flags; - - if (drive->pio_mode >= XFER_PIO_3) { - spin_lock_irqsave(&dtc2278_lock, flags); - /* - * This enables PIO mode4 (3?) on the first interface - */ - sub22(1,0xc3); - sub22(0,0xa0); - spin_unlock_irqrestore(&dtc2278_lock, flags); - } else { - /* we don't know how to set it back again.. */ - /* Actually we do - there is a data sheet available for the - Winbond but does anyone actually care */ - } -} - -static const struct ide_port_ops dtc2278_port_ops = { - .set_pio_mode = dtc2278_set_pio_mode, -}; - -static const struct ide_port_info dtc2278_port_info __initconst = { - .name = DRV_NAME, - .chipset = ide_dtc2278, - .port_ops = &dtc2278_port_ops, - .host_flags = IDE_HFLAG_SERIALIZE | - IDE_HFLAG_NO_UNMASK_IRQS | - IDE_HFLAG_IO_32BIT | - /* disallow ->io_32bit changes */ - IDE_HFLAG_NO_IO_32BIT | - IDE_HFLAG_NO_DMA | - IDE_HFLAG_DTC2278, - .pio_mask = ATA_PIO4, -}; - -static int __init dtc2278_probe(void) -{ - unsigned long flags; - - local_irq_save(flags); - /* - * This enables the second interface - */ - outb_p(4,0xb0); - inb(0x3f6); - outb_p(0x20,0xb4); - inb(0x3f6); -#ifdef ALWAYS_SET_DTC2278_PIO_MODE - /* - * This enables PIO mode4 (3?) on the first interface - * and may solve start-up problems for some people. - */ - sub22(1,0xc3); - sub22(0,0xa0); -#endif - local_irq_restore(flags); - - return ide_legacy_device_add(&dtc2278_port_info, 0); -} - -static bool probe_dtc2278; - -module_param_named(probe, probe_dtc2278, bool, 0); -MODULE_PARM_DESC(probe, "probe for DTC2278xx chipsets"); - -static int __init dtc2278_init(void) -{ - if (probe_dtc2278 == 0) - return -ENODEV; - - if (dtc2278_probe()) { - printk(KERN_ERR "dtc2278: ide interfaces already in use!\n"); - return -EBUSY; - } - return 0; -} - -module_init(dtc2278_init); - -MODULE_AUTHOR("See Local File"); -MODULE_DESCRIPTION("support of DTC-2278 VLB IDE chipsets"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/falconide.c b/drivers/ide/falconide.c deleted file mode 100644 index a73a9dc17e4d..000000000000 --- a/drivers/ide/falconide.c +++ /dev/null @@ -1,226 +0,0 @@ -/* - * Atari Falcon IDE Driver - * - * Created 12 Jul 1997 by Geert Uytterhoeven - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive for - * more details. - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/blkdev.h> -#include <linux/ide.h> -#include <linux/init.h> -#include <linux/platform_device.h> - -#include <asm/setup.h> -#include <asm/atarihw.h> -#include <asm/atariints.h> -#include <asm/atari_stdma.h> -#include <asm/ide.h> - -#define DRV_NAME "falconide" - -#ifdef CONFIG_ATARI - /* - * falconide_intr_lock is used to obtain access to the IDE interrupt, - * which is shared between several drivers. - */ - -static int falconide_intr_lock; - -static void falconide_release_lock(void) -{ - if (falconide_intr_lock == 0) { - printk(KERN_ERR "%s: bug\n", __func__); - return; - } - falconide_intr_lock = 0; - stdma_release(); -} - -static void falconide_get_lock(irq_handler_t handler, void *data) -{ - if (falconide_intr_lock == 0) { - stdma_lock(handler, data); - falconide_intr_lock = 1; - } -} -#endif - -static void falconide_input_data(ide_drive_t *drive, struct ide_cmd *cmd, - void *buf, unsigned int len) -{ - unsigned long data_addr = drive->hwif->io_ports.data_addr; - - if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS)) { - __ide_mm_insw(data_addr, buf, (len + 1) / 2); - return; - } - - raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2); -} - -static void falconide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, - void *buf, unsigned int len) -{ - unsigned long data_addr = drive->hwif->io_ports.data_addr; - - if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS)) { - __ide_mm_outsw(data_addr, buf, (len + 1) / 2); - return; - } - - raw_outsw_swapw((u16 *)data_addr, buf, (len + 1) / 2); -} - -/* Atari has a byte-swapped IDE interface */ -static const struct ide_tp_ops falconide_tp_ops = { - .exec_command = ide_exec_command, - .read_status = ide_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = ide_write_devctl, - - .dev_select = ide_dev_select, - .tf_load = ide_tf_load, - .tf_read = ide_tf_read, - - .input_data = falconide_input_data, - .output_data = falconide_output_data, -}; - -static const struct ide_port_info falconide_port_info = { -#ifdef CONFIG_ATARI - .get_lock = falconide_get_lock, - .release_lock = falconide_release_lock, -#endif - .tp_ops = &falconide_tp_ops, - .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE | - IDE_HFLAG_NO_DMA, - .irq_flags = IRQF_SHARED, - .chipset = ide_generic, -}; - -static void __init falconide_setup_ports(struct ide_hw *hw, unsigned long base, - unsigned long ctl, int irq) -{ - int i; - - memset(hw, 0, sizeof(*hw)); - - hw->io_ports.data_addr = base; - - for (i = 1; i < 8; i++) - hw->io_ports_array[i] = base + 1 + i * 4; - - hw->io_ports.ctl_addr = ctl + 1; - - hw->irq = irq; -} - - /* - * Probe for a Falcon IDE interface - */ - -static int __init falconide_init(struct platform_device *pdev) -{ - struct resource *base_mem_res, *ctl_mem_res; - struct resource *base_res, *ctl_res, *irq_res; - struct ide_host *host; - struct ide_hw hw, *hws[] = { &hw }; - int rc; - int irq; - - dev_info(&pdev->dev, "Atari Falcon and Q40/Q60 IDE controller\n"); - - base_res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (base_res && !devm_request_region(&pdev->dev, base_res->start, - resource_size(base_res), DRV_NAME)) { - dev_err(&pdev->dev, "resources busy\n"); - return -EBUSY; - } - - ctl_res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (ctl_res && !devm_request_region(&pdev->dev, ctl_res->start, - resource_size(ctl_res), DRV_NAME)) { - dev_err(&pdev->dev, "resources busy\n"); - return -EBUSY; - } - - base_mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!base_mem_res) - return -ENODEV; - - if (!devm_request_mem_region(&pdev->dev, base_mem_res->start, - resource_size(base_mem_res), DRV_NAME)) { - dev_err(&pdev->dev, "resources busy\n"); - return -EBUSY; - } - - ctl_mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (!ctl_mem_res) - return -ENODEV; - - if (MACH_IS_ATARI) { - irq = IRQ_MFP_IDE; - } else { - irq_res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (irq_res && irq_res->start > 0) - irq = irq_res->start; - else - return -ENODEV; - } - - falconide_setup_ports(&hw, base_mem_res->start, ctl_mem_res->start, irq); - - host = ide_host_alloc(&falconide_port_info, hws, 1); - if (!host) - return -ENOMEM; - - if (!MACH_IS_ATARI) { - host->get_lock = NULL; - host->release_lock = NULL; - } - - if (host->get_lock) - host->get_lock(NULL, NULL); - rc = ide_host_register(host, &falconide_port_info, hws); - if (host->release_lock) - host->release_lock(); - - if (rc) - goto err_free; - - platform_set_drvdata(pdev, host); - return 0; -err_free: - ide_host_free(host); - return rc; -} - -static int falconide_remove(struct platform_device *pdev) -{ - struct ide_host *host = platform_get_drvdata(pdev); - - ide_host_remove(host); - - return 0; -} - -static struct platform_driver ide_falcon_driver = { - .remove = falconide_remove, - .driver = { - .name = "atari-falcon-ide", - }, -}; - -module_platform_driver_probe(ide_falcon_driver, falconide_init); - -MODULE_AUTHOR("Geert Uytterhoeven"); -MODULE_DESCRIPTION("low-level driver for Atari Falcon IDE"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:atari-falcon-ide"); diff --git a/drivers/ide/gayle.c b/drivers/ide/gayle.c deleted file mode 100644 index 901e6ebfeb96..000000000000 --- a/drivers/ide/gayle.c +++ /dev/null @@ -1,188 +0,0 @@ -/* - * Amiga Gayle IDE Driver - * - * Created 9 Jul 1997 by Geert Uytterhoeven - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file COPYING in the main directory of this archive for - * more details. - */ - -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/blkdev.h> -#include <linux/ide.h> -#include <linux/init.h> -#include <linux/zorro.h> -#include <linux/module.h> -#include <linux/platform_device.h> - -#include <asm/setup.h> -#include <asm/amigahw.h> -#include <asm/amigaints.h> -#include <asm/amigayle.h> - - - /* - * Offsets from one of the above bases - */ - -#define GAYLE_CONTROL 0x101a - - /* - * These are at different offsets from the base - */ - -#define GAYLE_IRQ_4000 0xdd3020 /* MSB = 1, Harddisk is source of */ -#define GAYLE_IRQ_1200 0xda9000 /* interrupt */ - - - /* - * Offset of the secondary port for IDE doublers - * Note that GAYLE_CONTROL is NOT available then! - */ - -#define GAYLE_NEXT_PORT 0x1000 - -#define GAYLE_NUM_HWIFS 2 -#define GAYLE_NUM_PROBE_HWIFS (ide_doubler ? GAYLE_NUM_HWIFS : \ - GAYLE_NUM_HWIFS-1) -#define GAYLE_HAS_CONTROL_REG (!ide_doubler) - -static bool ide_doubler; -module_param_named(doubler, ide_doubler, bool, 0); -MODULE_PARM_DESC(doubler, "enable support for IDE doublers"); - - /* - * Check and acknowledge the interrupt status - */ - -static int gayle_test_irq(ide_hwif_t *hwif) -{ - unsigned char ch; - - ch = z_readb(hwif->io_ports.irq_addr); - if (!(ch & GAYLE_IRQ_IDE)) - return 0; - return 1; -} - -static void gayle_a1200_clear_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - - (void)z_readb(hwif->io_ports.status_addr); - z_writeb(0x7c, hwif->io_ports.irq_addr); -} - -static void __init gayle_setup_ports(struct ide_hw *hw, unsigned long base, - unsigned long ctl, unsigned long irq_port) -{ - int i; - - memset(hw, 0, sizeof(*hw)); - - hw->io_ports.data_addr = base; - - for (i = 1; i < 8; i++) - hw->io_ports_array[i] = base + 2 + i * 4; - - hw->io_ports.ctl_addr = ctl; - hw->io_ports.irq_addr = irq_port; - - hw->irq = IRQ_AMIGA_PORTS; -} - -static const struct ide_port_ops gayle_a4000_port_ops = { - .test_irq = gayle_test_irq, -}; - -static const struct ide_port_ops gayle_a1200_port_ops = { - .clear_irq = gayle_a1200_clear_irq, - .test_irq = gayle_test_irq, -}; - -static const struct ide_port_info gayle_port_info = { - .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_SERIALIZE | - IDE_HFLAG_NO_DMA, - .irq_flags = IRQF_SHARED, - .chipset = ide_generic, -}; - - /* - * Probe for a Gayle IDE interface (and optionally for an IDE doubler) - */ - -static int __init amiga_gayle_ide_probe(struct platform_device *pdev) -{ - struct resource *res; - struct gayle_ide_platform_data *pdata; - unsigned long base, ctrlport, irqport; - unsigned int i; - int error; - struct ide_hw hw[GAYLE_NUM_HWIFS], *hws[GAYLE_NUM_HWIFS]; - struct ide_port_info d = gayle_port_info; - struct ide_host *host; - - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; - - if (!request_mem_region(res->start, resource_size(res), "IDE")) - return -EBUSY; - - pdata = dev_get_platdata(&pdev->dev); - pr_info("ide: Gayle IDE controller (A%u style%s)\n", - pdata->explicit_ack ? 1200 : 4000, - ide_doubler ? ", IDE doubler" : ""); - - base = (unsigned long)ZTWO_VADDR(pdata->base); - ctrlport = 0; - irqport = (unsigned long)ZTWO_VADDR(pdata->irqport); - if (pdata->explicit_ack) - d.port_ops = &gayle_a1200_port_ops; - else - d.port_ops = &gayle_a4000_port_ops; - - for (i = 0; i < GAYLE_NUM_PROBE_HWIFS; i++, base += GAYLE_NEXT_PORT) { - if (GAYLE_HAS_CONTROL_REG) - ctrlport = base + GAYLE_CONTROL; - - gayle_setup_ports(&hw[i], base, ctrlport, irqport); - hws[i] = &hw[i]; - } - - error = ide_host_add(&d, hws, i, &host); - if (error) - goto out; - - platform_set_drvdata(pdev, host); - return 0; - -out: - release_mem_region(res->start, resource_size(res)); - return error; -} - -static int __exit amiga_gayle_ide_remove(struct platform_device *pdev) -{ - struct ide_host *host = platform_get_drvdata(pdev); - struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - - ide_host_remove(host); - release_mem_region(res->start, resource_size(res)); - return 0; -} - -static struct platform_driver amiga_gayle_ide_driver = { - .remove = __exit_p(amiga_gayle_ide_remove), - .driver = { - .name = "amiga-gayle-ide", - }, -}; - -module_platform_driver_probe(amiga_gayle_ide_driver, amiga_gayle_ide_probe); - -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:amiga-gayle-ide"); diff --git a/drivers/ide/hpt366.c b/drivers/ide/hpt366.c deleted file mode 100644 index 50c9a41467c8..000000000000 --- a/drivers/ide/hpt366.c +++ /dev/null @@ -1,1545 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1999-2003 Andre Hedrick <andre@linux-ide.org> - * Portions Copyright (C) 2001 Sun Microsystems, Inc. - * Portions Copyright (C) 2003 Red Hat Inc - * Portions Copyright (C) 2007 Bartlomiej Zolnierkiewicz - * Portions Copyright (C) 2005-2009 MontaVista Software, Inc. - * - * Thanks to HighPoint Technologies for their assistance, and hardware. - * Special Thanks to Jon Burchmore in SanDiego for the deep pockets, his - * donation of an ABit BP6 mainboard, processor, and memory acellerated - * development and support. - * - * - * HighPoint has its own drivers (open source except for the RAID part) - * available from http://www.highpoint-tech.com/USA_new/service_support.htm - * This may be useful to anyone wanting to work on this driver, however do not - * trust them too much since the code tends to become less and less meaningful - * as the time passes... :-/ - * - * Note that final HPT370 support was done by force extraction of GPL. - * - * - add function for getting/setting power status of drive - * - the HPT370's state machine can get confused. reset it before each dma - * xfer to prevent that from happening. - * - reset state engine whenever we get an error. - * - check for busmaster state at end of dma. - * - use new highpoint timings. - * - detect bus speed using highpoint register. - * - use pll if we don't have a clock table. added a 66MHz table that's - * just 2x the 33MHz table. - * - removed turnaround. NOTE: we never want to switch between pll and - * pci clocks as the chip can glitch in those cases. the highpoint - * approved workaround slows everything down too much to be useful. in - * addition, we would have to serialize access to each chip. - * Adrian Sun <a.sun@sun.com> - * - * add drive timings for 66MHz PCI bus, - * fix ATA Cable signal detection, fix incorrect /proc info - * add /proc display for per-drive PIO/DMA/UDMA mode and - * per-channel ATA-33/66 Cable detect. - * Duncan Laurie <void@sun.com> - * - * fixup /proc output for multiple controllers - * Tim Hockin <thockin@sun.com> - * - * On hpt366: - * Reset the hpt366 on error, reset on dma - * Fix disabling Fast Interrupt hpt366. - * Mike Waychison <crlf@sun.com> - * - * Added support for 372N clocking and clock switching. The 372N needs - * different clocks on read/write. This requires overloading rw_disk and - * other deeply crazy things. Thanks to <http://www.hoerstreich.de> for - * keeping me sane. - * Alan Cox <alan@lxorguk.ukuu.org.uk> - * - * - fix the clock turnaround code: it was writing to the wrong ports when - * called for the secondary channel, caching the current clock mode per- - * channel caused the cached register value to get out of sync with the - * actual one, the channels weren't serialized, the turnaround shouldn't - * be done on 66 MHz PCI bus - * - disable UltraATA/100 for HPT370 by default as the 33 MHz clock being used - * does not allow for this speed anyway - * - avoid touching disabled channels (e.g. HPT371/N are single channel chips, - * their primary channel is kind of virtual, it isn't tied to any pins) - * - fix/remove bad/unused timing tables and use one set of tables for the whole - * HPT37x chip family; save space by introducing the separate transfer mode - * table in which the mode lookup is done - * - use f_CNT value saved by the HighPoint BIOS as reading it directly gives - * the wrong PCI frequency since DPLL has already been calibrated by BIOS; - * read it only from the function 0 of HPT374 chips - * - fix the hotswap code: it caused RESET- to glitch when tristating the bus, - * and for HPT36x the obsolete HDIO_TRISTATE_HWIF handler was called instead - * - pass to init_chipset() handlers a copy of the IDE PCI device structure as - * they tamper with its fields - * - pass to the init_setup handlers a copy of the ide_pci_device_t structure - * since they may tamper with its fields - * - prefix the driver startup messages with the real chip name - * - claim the extra 240 bytes of I/O space for all chips - * - optimize the UltraDMA filtering and the drive list lookup code - * - use pci_get_slot() to get to the function 1 of HPT36x/374 - * - cache offset of the channel's misc. control registers (MCRs) being used - * throughout the driver - * - only touch the relevant MCR when detecting the cable type on HPT374's - * function 1 - * - rename all the register related variables consistently - * - move all the interrupt twiddling code from the speedproc handlers into - * init_hwif_hpt366(), also grouping all the DMA related code together there - * - merge HPT36x/HPT37x speedproc handlers, fix PIO timing register mask and - * separate the UltraDMA and MWDMA masks there to avoid changing PIO timings - * when setting an UltraDMA mode - * - fix hpt3xx_tune_drive() to set the PIO mode requested, not always select - * the best possible one - * - clean up DMA timeout handling for HPT370 - * - switch to using the enumeration type to differ between the numerous chip - * variants, matching PCI device/revision ID with the chip type early, at the - * init_setup stage - * - extend the hpt_info structure to hold the DPLL and PCI clock frequencies, - * stop duplicating it for each channel by storing the pointer in the pci_dev - * structure: first, at the init_setup stage, point it to a static "template" - * with only the chip type and its specific base DPLL frequency, the highest - * UltraDMA mode, and the chip settings table pointer filled, then, at the - * init_chipset stage, allocate per-chip instance and fill it with the rest - * of the necessary information - * - get rid of the constant thresholds in the HPT37x PCI clock detection code, - * switch to calculating PCI clock frequency based on the chip's base DPLL - * frequency - * - switch to using the DPLL clock and enable UltraATA/133 mode by default on - * anything newer than HPT370/A (except HPT374 that is not capable of this - * mode according to the manual) - * - fold PCI clock detection and DPLL setup code into init_chipset_hpt366(), - * also fixing the interchanged 25/40 MHz PCI clock cases for HPT36x chips; - * unify HPT36x/37x timing setup code and the speedproc handlers by joining - * the register setting lists into the table indexed by the clock selected - * - set the correct hwif->ultra_mask for each individual chip - * - add Ultra and MW DMA mode filtering for the HPT37[24] based SATA cards - * - stop resetting HPT370's state machine before each DMA transfer as that has - * caused more harm than good - * Sergei Shtylyov, <sshtylyov@ru.mvista.com> or <source@mvista.com> - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/blkdev.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ide.h> -#include <linux/slab.h> - -#include <linux/uaccess.h> -#include <asm/io.h> - -#define DRV_NAME "hpt366" - -/* various tuning parameters */ -#undef HPT_RESET_STATE_ENGINE -#undef HPT_DELAY_INTERRUPT - -static const char *bad_ata100_5[] = { - "IBM-DTLA-307075", - "IBM-DTLA-307060", - "IBM-DTLA-307045", - "IBM-DTLA-307030", - "IBM-DTLA-307020", - "IBM-DTLA-307015", - "IBM-DTLA-305040", - "IBM-DTLA-305030", - "IBM-DTLA-305020", - "IC35L010AVER07-0", - "IC35L020AVER07-0", - "IC35L030AVER07-0", - "IC35L040AVER07-0", - "IC35L060AVER07-0", - "WDC AC310200R", - NULL -}; - -static const char *bad_ata66_4[] = { - "IBM-DTLA-307075", - "IBM-DTLA-307060", - "IBM-DTLA-307045", - "IBM-DTLA-307030", - "IBM-DTLA-307020", - "IBM-DTLA-307015", - "IBM-DTLA-305040", - "IBM-DTLA-305030", - "IBM-DTLA-305020", - "IC35L010AVER07-0", - "IC35L020AVER07-0", - "IC35L030AVER07-0", - "IC35L040AVER07-0", - "IC35L060AVER07-0", - "WDC AC310200R", - "MAXTOR STM3320620A", - NULL -}; - -static const char *bad_ata66_3[] = { - "WDC AC310200R", - NULL -}; - -static const char *bad_ata33[] = { - "Maxtor 92720U8", "Maxtor 92040U6", "Maxtor 91360U4", "Maxtor 91020U3", "Maxtor 90845U3", "Maxtor 90650U2", - "Maxtor 91360D8", "Maxtor 91190D7", "Maxtor 91020D6", "Maxtor 90845D5", "Maxtor 90680D4", "Maxtor 90510D3", "Maxtor 90340D2", - "Maxtor 91152D8", "Maxtor 91008D7", "Maxtor 90845D6", "Maxtor 90840D6", "Maxtor 90720D5", "Maxtor 90648D5", "Maxtor 90576D4", - "Maxtor 90510D4", - "Maxtor 90432D3", "Maxtor 90288D2", "Maxtor 90256D2", - "Maxtor 91000D8", "Maxtor 90910D8", "Maxtor 90875D7", "Maxtor 90840D7", "Maxtor 90750D6", "Maxtor 90625D5", "Maxtor 90500D4", - "Maxtor 91728D8", "Maxtor 91512D7", "Maxtor 91303D6", "Maxtor 91080D5", "Maxtor 90845D4", "Maxtor 90680D4", "Maxtor 90648D3", "Maxtor 90432D2", - NULL -}; - -static u8 xfer_speeds[] = { - XFER_UDMA_6, - XFER_UDMA_5, - XFER_UDMA_4, - XFER_UDMA_3, - XFER_UDMA_2, - XFER_UDMA_1, - XFER_UDMA_0, - - XFER_MW_DMA_2, - XFER_MW_DMA_1, - XFER_MW_DMA_0, - - XFER_PIO_4, - XFER_PIO_3, - XFER_PIO_2, - XFER_PIO_1, - XFER_PIO_0 -}; - -/* Key for bus clock timings - * 36x 37x - * bits bits - * 0:3 0:3 data_high_time. Inactive time of DIOW_/DIOR_ for PIO and MW DMA. - * cycles = value + 1 - * 4:7 4:8 data_low_time. Active time of DIOW_/DIOR_ for PIO and MW DMA. - * cycles = value + 1 - * 8:11 9:12 cmd_high_time. Inactive time of DIOW_/DIOR_ during task file - * register access. - * 12:15 13:17 cmd_low_time. Active time of DIOW_/DIOR_ during task file - * register access. - * 16:18 18:20 udma_cycle_time. Clock cycles for UDMA xfer. - * - 21 CLK frequency: 0=ATA clock, 1=dual ATA clock. - * 19:21 22:24 pre_high_time. Time to initialize the 1st cycle for PIO and - * MW DMA xfer. - * 22:24 25:27 cmd_pre_high_time. Time to initialize the 1st PIO cycle for - * task file register access. - * 28 28 UDMA enable. - * 29 29 DMA enable. - * 30 30 PIO MST enable. If set, the chip is in bus master mode during - * PIO xfer. - * 31 31 FIFO enable. - */ - -static u32 forty_base_hpt36x[] = { - /* XFER_UDMA_6 */ 0x900fd943, - /* XFER_UDMA_5 */ 0x900fd943, - /* XFER_UDMA_4 */ 0x900fd943, - /* XFER_UDMA_3 */ 0x900ad943, - /* XFER_UDMA_2 */ 0x900bd943, - /* XFER_UDMA_1 */ 0x9008d943, - /* XFER_UDMA_0 */ 0x9008d943, - - /* XFER_MW_DMA_2 */ 0xa008d943, - /* XFER_MW_DMA_1 */ 0xa010d955, - /* XFER_MW_DMA_0 */ 0xa010d9fc, - - /* XFER_PIO_4 */ 0xc008d963, - /* XFER_PIO_3 */ 0xc010d974, - /* XFER_PIO_2 */ 0xc010d997, - /* XFER_PIO_1 */ 0xc010d9c7, - /* XFER_PIO_0 */ 0xc018d9d9 -}; - -static u32 thirty_three_base_hpt36x[] = { - /* XFER_UDMA_6 */ 0x90c9a731, - /* XFER_UDMA_5 */ 0x90c9a731, - /* XFER_UDMA_4 */ 0x90c9a731, - /* XFER_UDMA_3 */ 0x90cfa731, - /* XFER_UDMA_2 */ 0x90caa731, - /* XFER_UDMA_1 */ 0x90cba731, - /* XFER_UDMA_0 */ 0x90c8a731, - - /* XFER_MW_DMA_2 */ 0xa0c8a731, - /* XFER_MW_DMA_1 */ 0xa0c8a732, /* 0xa0c8a733 */ - /* XFER_MW_DMA_0 */ 0xa0c8a797, - - /* XFER_PIO_4 */ 0xc0c8a731, - /* XFER_PIO_3 */ 0xc0c8a742, - /* XFER_PIO_2 */ 0xc0d0a753, - /* XFER_PIO_1 */ 0xc0d0a7a3, /* 0xc0d0a793 */ - /* XFER_PIO_0 */ 0xc0d0a7aa /* 0xc0d0a7a7 */ -}; - -static u32 twenty_five_base_hpt36x[] = { - /* XFER_UDMA_6 */ 0x90c98521, - /* XFER_UDMA_5 */ 0x90c98521, - /* XFER_UDMA_4 */ 0x90c98521, - /* XFER_UDMA_3 */ 0x90cf8521, - /* XFER_UDMA_2 */ 0x90cf8521, - /* XFER_UDMA_1 */ 0x90cb8521, - /* XFER_UDMA_0 */ 0x90cb8521, - - /* XFER_MW_DMA_2 */ 0xa0ca8521, - /* XFER_MW_DMA_1 */ 0xa0ca8532, - /* XFER_MW_DMA_0 */ 0xa0ca8575, - - /* XFER_PIO_4 */ 0xc0ca8521, - /* XFER_PIO_3 */ 0xc0ca8532, - /* XFER_PIO_2 */ 0xc0ca8542, - /* XFER_PIO_1 */ 0xc0d08572, - /* XFER_PIO_0 */ 0xc0d08585 -}; - -/* - * The following are the new timing tables with PIO mode data/taskfile transfer - * overclocking fixed... - */ - -/* This table is taken from the HPT370 data manual rev. 1.02 */ -static u32 thirty_three_base_hpt37x[] = { - /* XFER_UDMA_6 */ 0x16455031, /* 0x16655031 ?? */ - /* XFER_UDMA_5 */ 0x16455031, - /* XFER_UDMA_4 */ 0x16455031, - /* XFER_UDMA_3 */ 0x166d5031, - /* XFER_UDMA_2 */ 0x16495031, - /* XFER_UDMA_1 */ 0x164d5033, - /* XFER_UDMA_0 */ 0x16515097, - - /* XFER_MW_DMA_2 */ 0x26515031, - /* XFER_MW_DMA_1 */ 0x26515033, - /* XFER_MW_DMA_0 */ 0x26515097, - - /* XFER_PIO_4 */ 0x06515021, - /* XFER_PIO_3 */ 0x06515022, - /* XFER_PIO_2 */ 0x06515033, - /* XFER_PIO_1 */ 0x06915065, - /* XFER_PIO_0 */ 0x06d1508a -}; - -static u32 fifty_base_hpt37x[] = { - /* XFER_UDMA_6 */ 0x1a861842, - /* XFER_UDMA_5 */ 0x1a861842, - /* XFER_UDMA_4 */ 0x1aae1842, - /* XFER_UDMA_3 */ 0x1a8e1842, - /* XFER_UDMA_2 */ 0x1a0e1842, - /* XFER_UDMA_1 */ 0x1a161854, - /* XFER_UDMA_0 */ 0x1a1a18ea, - - /* XFER_MW_DMA_2 */ 0x2a821842, - /* XFER_MW_DMA_1 */ 0x2a821854, - /* XFER_MW_DMA_0 */ 0x2a8218ea, - - /* XFER_PIO_4 */ 0x0a821842, - /* XFER_PIO_3 */ 0x0a821843, - /* XFER_PIO_2 */ 0x0a821855, - /* XFER_PIO_1 */ 0x0ac218a8, - /* XFER_PIO_0 */ 0x0b02190c -}; - -static u32 sixty_six_base_hpt37x[] = { - /* XFER_UDMA_6 */ 0x1c86fe62, - /* XFER_UDMA_5 */ 0x1caefe62, /* 0x1c8afe62 */ - /* XFER_UDMA_4 */ 0x1c8afe62, - /* XFER_UDMA_3 */ 0x1c8efe62, - /* XFER_UDMA_2 */ 0x1c92fe62, - /* XFER_UDMA_1 */ 0x1c9afe62, - /* XFER_UDMA_0 */ 0x1c82fe62, - - /* XFER_MW_DMA_2 */ 0x2c82fe62, - /* XFER_MW_DMA_1 */ 0x2c82fe66, - /* XFER_MW_DMA_0 */ 0x2c82ff2e, - - /* XFER_PIO_4 */ 0x0c82fe62, - /* XFER_PIO_3 */ 0x0c82fe84, - /* XFER_PIO_2 */ 0x0c82fea6, - /* XFER_PIO_1 */ 0x0d02ff26, - /* XFER_PIO_0 */ 0x0d42ff7f -}; - -#define HPT371_ALLOW_ATA133_6 1 -#define HPT302_ALLOW_ATA133_6 1 -#define HPT372_ALLOW_ATA133_6 1 -#define HPT370_ALLOW_ATA100_5 0 -#define HPT366_ALLOW_ATA66_4 1 -#define HPT366_ALLOW_ATA66_3 1 - -/* Supported ATA clock frequencies */ -enum ata_clock { - ATA_CLOCK_25MHZ, - ATA_CLOCK_33MHZ, - ATA_CLOCK_40MHZ, - ATA_CLOCK_50MHZ, - ATA_CLOCK_66MHZ, - NUM_ATA_CLOCKS -}; - -struct hpt_timings { - u32 pio_mask; - u32 dma_mask; - u32 ultra_mask; - u32 *clock_table[NUM_ATA_CLOCKS]; -}; - -/* - * Hold all the HighPoint chip information in one place. - */ - -struct hpt_info { - char *chip_name; /* Chip name */ - u8 chip_type; /* Chip type */ - u8 udma_mask; /* Allowed UltraDMA modes mask. */ - u8 dpll_clk; /* DPLL clock in MHz */ - u8 pci_clk; /* PCI clock in MHz */ - struct hpt_timings *timings; /* Chipset timing data */ - u8 clock; /* ATA clock selected */ -}; - -/* Supported HighPoint chips */ -enum { - HPT36x, - HPT370, - HPT370A, - HPT374, - HPT372, - HPT372A, - HPT302, - HPT371, - HPT372N, - HPT302N, - HPT371N -}; - -static struct hpt_timings hpt36x_timings = { - .pio_mask = 0xc1f8ffff, - .dma_mask = 0x303800ff, - .ultra_mask = 0x30070000, - .clock_table = { - [ATA_CLOCK_25MHZ] = twenty_five_base_hpt36x, - [ATA_CLOCK_33MHZ] = thirty_three_base_hpt36x, - [ATA_CLOCK_40MHZ] = forty_base_hpt36x, - [ATA_CLOCK_50MHZ] = NULL, - [ATA_CLOCK_66MHZ] = NULL - } -}; - -static struct hpt_timings hpt37x_timings = { - .pio_mask = 0xcfc3ffff, - .dma_mask = 0x31c001ff, - .ultra_mask = 0x303c0000, - .clock_table = { - [ATA_CLOCK_25MHZ] = NULL, - [ATA_CLOCK_33MHZ] = thirty_three_base_hpt37x, - [ATA_CLOCK_40MHZ] = NULL, - [ATA_CLOCK_50MHZ] = fifty_base_hpt37x, - [ATA_CLOCK_66MHZ] = sixty_six_base_hpt37x - } -}; - -static const struct hpt_info hpt36x = { - .chip_name = "HPT36x", - .chip_type = HPT36x, - .udma_mask = HPT366_ALLOW_ATA66_3 ? (HPT366_ALLOW_ATA66_4 ? ATA_UDMA4 : ATA_UDMA3) : ATA_UDMA2, - .dpll_clk = 0, /* no DPLL */ - .timings = &hpt36x_timings -}; - -static const struct hpt_info hpt370 = { - .chip_name = "HPT370", - .chip_type = HPT370, - .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4, - .dpll_clk = 48, - .timings = &hpt37x_timings -}; - -static const struct hpt_info hpt370a = { - .chip_name = "HPT370A", - .chip_type = HPT370A, - .udma_mask = HPT370_ALLOW_ATA100_5 ? ATA_UDMA5 : ATA_UDMA4, - .dpll_clk = 48, - .timings = &hpt37x_timings -}; - -static const struct hpt_info hpt374 = { - .chip_name = "HPT374", - .chip_type = HPT374, - .udma_mask = ATA_UDMA5, - .dpll_clk = 48, - .timings = &hpt37x_timings -}; - -static const struct hpt_info hpt372 = { - .chip_name = "HPT372", - .chip_type = HPT372, - .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, - .dpll_clk = 55, - .timings = &hpt37x_timings -}; - -static const struct hpt_info hpt372a = { - .chip_name = "HPT372A", - .chip_type = HPT372A, - .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, - .dpll_clk = 66, - .timings = &hpt37x_timings -}; - -static const struct hpt_info hpt302 = { - .chip_name = "HPT302", - .chip_type = HPT302, - .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, - .dpll_clk = 66, - .timings = &hpt37x_timings -}; - -static const struct hpt_info hpt371 = { - .chip_name = "HPT371", - .chip_type = HPT371, - .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, - .dpll_clk = 66, - .timings = &hpt37x_timings -}; - -static const struct hpt_info hpt372n = { - .chip_name = "HPT372N", - .chip_type = HPT372N, - .udma_mask = HPT372_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, - .dpll_clk = 77, - .timings = &hpt37x_timings -}; - -static const struct hpt_info hpt302n = { - .chip_name = "HPT302N", - .chip_type = HPT302N, - .udma_mask = HPT302_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, - .dpll_clk = 77, - .timings = &hpt37x_timings -}; - -static const struct hpt_info hpt371n = { - .chip_name = "HPT371N", - .chip_type = HPT371N, - .udma_mask = HPT371_ALLOW_ATA133_6 ? ATA_UDMA6 : ATA_UDMA5, - .dpll_clk = 77, - .timings = &hpt37x_timings -}; - -static bool check_in_drive_list(ide_drive_t *drive, const char **list) -{ - return match_string(list, -1, (char *)&drive->id[ATA_ID_PROD]) >= 0; -} - -static struct hpt_info *hpt3xx_get_info(struct device *dev) -{ - struct ide_host *host = dev_get_drvdata(dev); - struct hpt_info *info = (struct hpt_info *)host->host_priv; - - return dev == host->dev[1] ? info + 1 : info; -} - -/* - * The Marvell bridge chips used on the HighPoint SATA cards do not seem - * to support the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes... - */ - -static u8 hpt3xx_udma_filter(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct hpt_info *info = hpt3xx_get_info(hwif->dev); - u8 mask = hwif->ultra_mask; - - switch (info->chip_type) { - case HPT36x: - if (!HPT366_ALLOW_ATA66_4 || - check_in_drive_list(drive, bad_ata66_4)) - mask = ATA_UDMA3; - - if (!HPT366_ALLOW_ATA66_3 || - check_in_drive_list(drive, bad_ata66_3)) - mask = ATA_UDMA2; - break; - case HPT370: - if (!HPT370_ALLOW_ATA100_5 || - check_in_drive_list(drive, bad_ata100_5)) - mask = ATA_UDMA4; - break; - case HPT370A: - if (!HPT370_ALLOW_ATA100_5 || - check_in_drive_list(drive, bad_ata100_5)) - return ATA_UDMA4; - fallthrough; - case HPT372 : - case HPT372A: - case HPT372N: - case HPT374 : - if (ata_id_is_sata(drive->id)) - mask &= ~0x0e; - fallthrough; - default: - return mask; - } - - return check_in_drive_list(drive, bad_ata33) ? 0x00 : mask; -} - -static u8 hpt3xx_mdma_filter(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct hpt_info *info = hpt3xx_get_info(hwif->dev); - - switch (info->chip_type) { - case HPT372 : - case HPT372A: - case HPT372N: - case HPT374 : - if (ata_id_is_sata(drive->id)) - return 0x00; - fallthrough; - default: - return 0x07; - } -} - -static u32 get_speed_setting(u8 speed, struct hpt_info *info) -{ - int i; - - /* - * Lookup the transfer mode table to get the index into - * the timing table. - * - * NOTE: For XFER_PIO_SLOW, PIO mode 0 timings will be used. - */ - for (i = 0; i < ARRAY_SIZE(xfer_speeds) - 1; i++) - if (xfer_speeds[i] == speed) - break; - - return info->timings->clock_table[info->clock][i]; -} - -static void hpt3xx_set_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct hpt_info *info = hpt3xx_get_info(hwif->dev); - struct hpt_timings *t = info->timings; - u8 itr_addr = 0x40 + (drive->dn * 4); - u32 old_itr = 0; - const u8 speed = drive->dma_mode; - u32 new_itr = get_speed_setting(speed, info); - u32 itr_mask = speed < XFER_MW_DMA_0 ? t->pio_mask : - (speed < XFER_UDMA_0 ? t->dma_mask : - t->ultra_mask); - - pci_read_config_dword(dev, itr_addr, &old_itr); - new_itr = (old_itr & ~itr_mask) | (new_itr & itr_mask); - /* - * Disable on-chip PIO FIFO/buffer (and PIO MST mode as well) - * to avoid problems handling I/O errors later - */ - new_itr &= ~0xc0000000; - - pci_write_config_dword(dev, itr_addr, new_itr); -} - -static void hpt3xx_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - drive->dma_mode = drive->pio_mode; - hpt3xx_set_mode(hwif, drive); -} - -static void hpt3xx_maskproc(ide_drive_t *drive, int mask) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct hpt_info *info = hpt3xx_get_info(hwif->dev); - - if ((drive->dev_flags & IDE_DFLAG_NIEN_QUIRK) == 0) - return; - - if (info->chip_type >= HPT370) { - u8 scr1 = 0; - - pci_read_config_byte(dev, 0x5a, &scr1); - if (((scr1 & 0x10) >> 4) != mask) { - if (mask) - scr1 |= 0x10; - else - scr1 &= ~0x10; - pci_write_config_byte(dev, 0x5a, scr1); - } - } else if (mask) - disable_irq(hwif->irq); - else - enable_irq(hwif->irq); -} - -/* - * This is specific to the HPT366 UDMA chipset - * by HighPoint|Triones Technologies, Inc. - */ -static void hpt366_dma_lost_irq(ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - u8 mcr1 = 0, mcr3 = 0, scr1 = 0; - - pci_read_config_byte(dev, 0x50, &mcr1); - pci_read_config_byte(dev, 0x52, &mcr3); - pci_read_config_byte(dev, 0x5a, &scr1); - printk("%s: (%s) mcr1=0x%02x, mcr3=0x%02x, scr1=0x%02x\n", - drive->name, __func__, mcr1, mcr3, scr1); - if (scr1 & 0x10) - pci_write_config_byte(dev, 0x5a, scr1 & ~0x10); - ide_dma_lost_irq(drive); -} - -static void hpt370_clear_engine(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - - pci_write_config_byte(dev, hwif->select_data, 0x37); - udelay(10); -} - -static void hpt370_irq_timeout(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - u16 bfifo = 0; - u8 dma_cmd; - - pci_read_config_word(dev, hwif->select_data + 2, &bfifo); - printk(KERN_DEBUG "%s: %d bytes in FIFO\n", drive->name, bfifo & 0x1ff); - - /* get DMA command mode */ - dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); - /* stop DMA */ - outb(dma_cmd & ~ATA_DMA_START, hwif->dma_base + ATA_DMA_CMD); - hpt370_clear_engine(drive); -} - -static void hpt370_dma_start(ide_drive_t *drive) -{ -#ifdef HPT_RESET_STATE_ENGINE - hpt370_clear_engine(drive); -#endif - ide_dma_start(drive); -} - -static int hpt370_dma_end(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); - - if (dma_stat & ATA_DMA_ACTIVE) { - /* wait a little */ - udelay(20); - dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); - if (dma_stat & ATA_DMA_ACTIVE) - hpt370_irq_timeout(drive); - } - return ide_dma_end(drive); -} - -/* returns 1 if DMA IRQ issued, 0 otherwise */ -static int hpt374_dma_test_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - u16 bfifo = 0; - u8 dma_stat; - - pci_read_config_word(dev, hwif->select_data + 2, &bfifo); - if (bfifo & 0x1FF) { -// printk("%s: %d bytes in FIFO\n", drive->name, bfifo); - return 0; - } - - dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); - /* return 1 if INTR asserted */ - if (dma_stat & ATA_DMA_INTR) - return 1; - - return 0; -} - -static int hpt374_dma_end(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 mcr = 0, mcr_addr = hwif->select_data; - u8 bwsr = 0, mask = hwif->channel ? 0x02 : 0x01; - - pci_read_config_byte(dev, 0x6a, &bwsr); - pci_read_config_byte(dev, mcr_addr, &mcr); - if (bwsr & mask) - pci_write_config_byte(dev, mcr_addr, mcr | 0x30); - return ide_dma_end(drive); -} - -/** - * hpt3xxn_set_clock - perform clock switching dance - * @hwif: hwif to switch - * @mode: clocking mode (0x21 for write, 0x23 otherwise) - * - * Switch the DPLL clock on the HPT3xxN devices. This is a right mess. - */ - -static void hpt3xxn_set_clock(ide_hwif_t *hwif, u8 mode) -{ - unsigned long base = hwif->extra_base; - u8 scr2 = inb(base + 0x6b); - - if ((scr2 & 0x7f) == mode) - return; - - /* Tristate the bus */ - outb(0x80, base + 0x63); - outb(0x80, base + 0x67); - - /* Switch clock and reset channels */ - outb(mode, base + 0x6b); - outb(0xc0, base + 0x69); - - /* - * Reset the state machines. - * NOTE: avoid accidentally enabling the disabled channels. - */ - outb(inb(base + 0x60) | 0x32, base + 0x60); - outb(inb(base + 0x64) | 0x32, base + 0x64); - - /* Complete reset */ - outb(0x00, base + 0x69); - - /* Reconnect channels to bus */ - outb(0x00, base + 0x63); - outb(0x00, base + 0x67); -} - -/** - * hpt3xxn_rw_disk - prepare for I/O - * @drive: drive for command - * @rq: block request structure - * - * This is called when a disk I/O is issued to HPT3xxN. - * We need it because of the clock switching. - */ - -static void hpt3xxn_rw_disk(ide_drive_t *drive, struct request *rq) -{ - hpt3xxn_set_clock(drive->hwif, rq_data_dir(rq) ? 0x21 : 0x23); -} - -/** - * hpt37x_calibrate_dpll - calibrate the DPLL - * @dev: PCI device - * - * Perform a calibration cycle on the DPLL. - * Returns 1 if this succeeds - */ -static int hpt37x_calibrate_dpll(struct pci_dev *dev, u16 f_low, u16 f_high) -{ - u32 dpll = (f_high << 16) | f_low | 0x100; - u8 scr2; - int i; - - pci_write_config_dword(dev, 0x5c, dpll); - - /* Wait for oscillator ready */ - for(i = 0; i < 0x5000; ++i) { - udelay(50); - pci_read_config_byte(dev, 0x5b, &scr2); - if (scr2 & 0x80) - break; - } - /* See if it stays ready (we'll just bail out if it's not yet) */ - for(i = 0; i < 0x1000; ++i) { - pci_read_config_byte(dev, 0x5b, &scr2); - /* DPLL destabilized? */ - if(!(scr2 & 0x80)) - return 0; - } - /* Turn off tuning, we have the DPLL set */ - pci_read_config_dword (dev, 0x5c, &dpll); - pci_write_config_dword(dev, 0x5c, (dpll & ~0x100)); - return 1; -} - -static void hpt3xx_disable_fast_irq(struct pci_dev *dev, u8 mcr_addr) -{ - struct ide_host *host = pci_get_drvdata(dev); - struct hpt_info *info = host->host_priv + (&dev->dev == host->dev[1]); - u8 chip_type = info->chip_type; - u8 new_mcr, old_mcr = 0; - - /* - * Disable the "fast interrupt" prediction. Don't hold off - * on interrupts. (== 0x01 despite what the docs say) - */ - pci_read_config_byte(dev, mcr_addr + 1, &old_mcr); - - if (chip_type >= HPT374) - new_mcr = old_mcr & ~0x07; - else if (chip_type >= HPT370) { - new_mcr = old_mcr; - new_mcr &= ~0x02; -#ifdef HPT_DELAY_INTERRUPT - new_mcr &= ~0x01; -#else - new_mcr |= 0x01; -#endif - } else /* HPT366 and HPT368 */ - new_mcr = old_mcr & ~0x80; - - if (new_mcr != old_mcr) - pci_write_config_byte(dev, mcr_addr + 1, new_mcr); -} - -static int init_chipset_hpt366(struct pci_dev *dev) -{ - unsigned long io_base = pci_resource_start(dev, 4); - struct hpt_info *info = hpt3xx_get_info(&dev->dev); - const char *name = DRV_NAME; - u8 pci_clk, dpll_clk = 0; /* PCI and DPLL clock in MHz */ - u8 chip_type; - enum ata_clock clock; - - chip_type = info->chip_type; - - pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, (L1_CACHE_BYTES / 4)); - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x78); - pci_write_config_byte(dev, PCI_MIN_GNT, 0x08); - pci_write_config_byte(dev, PCI_MAX_LAT, 0x08); - - /* - * First, try to estimate the PCI clock frequency... - */ - if (chip_type >= HPT370) { - u8 scr1 = 0; - u16 f_cnt = 0; - u32 temp = 0; - - /* Interrupt force enable. */ - pci_read_config_byte(dev, 0x5a, &scr1); - if (scr1 & 0x10) - pci_write_config_byte(dev, 0x5a, scr1 & ~0x10); - - /* - * HighPoint does this for HPT372A. - * NOTE: This register is only writeable via I/O space. - */ - if (chip_type == HPT372A) - outb(0x0e, io_base + 0x9c); - - /* - * Default to PCI clock. Make sure MA15/16 are set to output - * to prevent drives having problems with 40-pin cables. - */ - pci_write_config_byte(dev, 0x5b, 0x23); - - /* - * We'll have to read f_CNT value in order to determine - * the PCI clock frequency according to the following ratio: - * - * f_CNT = Fpci * 192 / Fdpll - * - * First try reading the register in which the HighPoint BIOS - * saves f_CNT value before reprogramming the DPLL from its - * default setting (which differs for the various chips). - * - * NOTE: This register is only accessible via I/O space; - * HPT374 BIOS only saves it for the function 0, so we have to - * always read it from there -- no need to check the result of - * pci_get_slot() for the function 0 as the whole device has - * been already "pinned" (via function 1) in init_setup_hpt374() - */ - if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) { - struct pci_dev *dev1 = pci_get_slot(dev->bus, - dev->devfn - 1); - unsigned long io_base = pci_resource_start(dev1, 4); - - temp = inl(io_base + 0x90); - pci_dev_put(dev1); - } else - temp = inl(io_base + 0x90); - - /* - * In case the signature check fails, we'll have to - * resort to reading the f_CNT register itself in hopes - * that nobody has touched the DPLL yet... - */ - if ((temp & 0xFFFFF000) != 0xABCDE000) { - int i; - - printk(KERN_WARNING "%s %s: no clock data saved by " - "BIOS\n", name, pci_name(dev)); - - /* Calculate the average value of f_CNT. */ - for (temp = i = 0; i < 128; i++) { - pci_read_config_word(dev, 0x78, &f_cnt); - temp += f_cnt & 0x1ff; - mdelay(1); - } - f_cnt = temp / 128; - } else - f_cnt = temp & 0x1ff; - - dpll_clk = info->dpll_clk; - pci_clk = (f_cnt * dpll_clk) / 192; - - /* Clamp PCI clock to bands. */ - if (pci_clk < 40) - pci_clk = 33; - else if(pci_clk < 45) - pci_clk = 40; - else if(pci_clk < 55) - pci_clk = 50; - else - pci_clk = 66; - - printk(KERN_INFO "%s %s: DPLL base: %d MHz, f_CNT: %d, " - "assuming %d MHz PCI\n", name, pci_name(dev), - dpll_clk, f_cnt, pci_clk); - } else { - u32 itr1 = 0; - - pci_read_config_dword(dev, 0x40, &itr1); - - /* Detect PCI clock by looking at cmd_high_time. */ - switch ((itr1 >> 8) & 0x0f) { - case 0x09: - pci_clk = 40; - break; - case 0x05: - pci_clk = 25; - break; - case 0x07: - default: - pci_clk = 33; - break; - } - } - - /* Let's assume we'll use PCI clock for the ATA clock... */ - switch (pci_clk) { - case 25: - clock = ATA_CLOCK_25MHZ; - break; - case 33: - default: - clock = ATA_CLOCK_33MHZ; - break; - case 40: - clock = ATA_CLOCK_40MHZ; - break; - case 50: - clock = ATA_CLOCK_50MHZ; - break; - case 66: - clock = ATA_CLOCK_66MHZ; - break; - } - - /* - * Only try the DPLL if we don't have a table for the PCI clock that - * we are running at for HPT370/A, always use it for anything newer... - * - * NOTE: Using the internal DPLL results in slow reads on 33 MHz PCI. - * We also don't like using the DPLL because this causes glitches - * on PRST-/SRST- when the state engine gets reset... - */ - if (chip_type >= HPT374 || info->timings->clock_table[clock] == NULL) { - u16 f_low, delta = pci_clk < 50 ? 2 : 4; - int adjust; - - /* - * Select 66 MHz DPLL clock only if UltraATA/133 mode is - * supported/enabled, use 50 MHz DPLL clock otherwise... - */ - if (info->udma_mask == ATA_UDMA6) { - dpll_clk = 66; - clock = ATA_CLOCK_66MHZ; - } else if (dpll_clk) { /* HPT36x chips don't have DPLL */ - dpll_clk = 50; - clock = ATA_CLOCK_50MHZ; - } - - if (info->timings->clock_table[clock] == NULL) { - printk(KERN_ERR "%s %s: unknown bus timing!\n", - name, pci_name(dev)); - return -EIO; - } - - /* Select the DPLL clock. */ - pci_write_config_byte(dev, 0x5b, 0x21); - - /* - * Adjust the DPLL based upon PCI clock, enable it, - * and wait for stabilization... - */ - f_low = (pci_clk * 48) / dpll_clk; - - for (adjust = 0; adjust < 8; adjust++) { - if(hpt37x_calibrate_dpll(dev, f_low, f_low + delta)) - break; - - /* - * See if it'll settle at a fractionally different clock - */ - if (adjust & 1) - f_low -= adjust >> 1; - else - f_low += adjust >> 1; - } - if (adjust == 8) { - printk(KERN_ERR "%s %s: DPLL did not stabilize!\n", - name, pci_name(dev)); - return -EIO; - } - - printk(KERN_INFO "%s %s: using %d MHz DPLL clock\n", - name, pci_name(dev), dpll_clk); - } else { - /* Mark the fact that we're not using the DPLL. */ - dpll_clk = 0; - - printk(KERN_INFO "%s %s: using %d MHz PCI clock\n", - name, pci_name(dev), pci_clk); - } - - /* Store the clock frequencies. */ - info->dpll_clk = dpll_clk; - info->pci_clk = pci_clk; - info->clock = clock; - - if (chip_type >= HPT370) { - u8 mcr1, mcr4; - - /* - * Reset the state engines. - * NOTE: Avoid accidentally enabling the disabled channels. - */ - pci_read_config_byte (dev, 0x50, &mcr1); - pci_read_config_byte (dev, 0x54, &mcr4); - pci_write_config_byte(dev, 0x50, (mcr1 | 0x32)); - pci_write_config_byte(dev, 0x54, (mcr4 | 0x32)); - udelay(100); - } - - /* - * On HPT371N, if ATA clock is 66 MHz we must set bit 2 in - * the MISC. register to stretch the UltraDMA Tss timing. - * NOTE: This register is only writeable via I/O space. - */ - if (chip_type == HPT371N && clock == ATA_CLOCK_66MHZ) - outb(inb(io_base + 0x9c) | 0x04, io_base + 0x9c); - - hpt3xx_disable_fast_irq(dev, 0x50); - hpt3xx_disable_fast_irq(dev, 0x54); - - return 0; -} - -static u8 hpt3xx_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct hpt_info *info = hpt3xx_get_info(hwif->dev); - u8 chip_type = info->chip_type; - u8 scr1 = 0, ata66 = hwif->channel ? 0x01 : 0x02; - - /* - * The HPT37x uses the CBLID pins as outputs for MA15/MA16 - * address lines to access an external EEPROM. To read valid - * cable detect state the pins must be enabled as inputs. - */ - if (chip_type == HPT374 && (PCI_FUNC(dev->devfn) & 1)) { - /* - * HPT374 PCI function 1 - * - set bit 15 of reg 0x52 to enable TCBLID as input - * - set bit 15 of reg 0x56 to enable FCBLID as input - */ - u8 mcr_addr = hwif->select_data + 2; - u16 mcr; - - pci_read_config_word(dev, mcr_addr, &mcr); - pci_write_config_word(dev, mcr_addr, mcr | 0x8000); - /* Debounce, then read cable ID register */ - udelay(10); - pci_read_config_byte(dev, 0x5a, &scr1); - pci_write_config_word(dev, mcr_addr, mcr); - } else if (chip_type >= HPT370) { - /* - * HPT370/372 and 374 pcifn 0 - * - clear bit 0 of reg 0x5b to enable P/SCBLID as inputs - */ - u8 scr2 = 0; - - pci_read_config_byte(dev, 0x5b, &scr2); - pci_write_config_byte(dev, 0x5b, scr2 & ~1); - /* Debounce, then read cable ID register */ - udelay(10); - pci_read_config_byte(dev, 0x5a, &scr1); - pci_write_config_byte(dev, 0x5b, scr2); - } else - pci_read_config_byte(dev, 0x5a, &scr1); - - return (scr1 & ata66) ? ATA_CBL_PATA40 : ATA_CBL_PATA80; -} - -static void init_hwif_hpt366(ide_hwif_t *hwif) -{ - struct hpt_info *info = hpt3xx_get_info(hwif->dev); - u8 chip_type = info->chip_type; - - /* Cache the channel's MISC. control registers' offset */ - hwif->select_data = hwif->channel ? 0x54 : 0x50; - - /* - * HPT3xxN chips have some complications: - * - * - on 33 MHz PCI we must clock switch - * - on 66 MHz PCI we must NOT use the PCI clock - */ - if (chip_type >= HPT372N && info->dpll_clk && info->pci_clk < 66) { - /* - * Clock is shared between the channels, - * so we'll have to serialize them... :-( - */ - hwif->host->host_flags |= IDE_HFLAG_SERIALIZE; - hwif->rw_disk = &hpt3xxn_rw_disk; - } -} - -static int init_dma_hpt366(ide_hwif_t *hwif, - const struct ide_port_info *d) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long flags, base = ide_pci_dma_base(hwif, d); - u8 dma_old, dma_new, masterdma = 0, slavedma = 0; - - if (base == 0) - return -1; - - hwif->dma_base = base; - - if (ide_pci_check_simplex(hwif, d) < 0) - return -1; - - if (ide_pci_set_master(dev, d->name) < 0) - return -1; - - dma_old = inb(base + 2); - - local_irq_save(flags); - - dma_new = dma_old; - pci_read_config_byte(dev, hwif->channel ? 0x4b : 0x43, &masterdma); - pci_read_config_byte(dev, hwif->channel ? 0x4f : 0x47, &slavedma); - - if (masterdma & 0x30) dma_new |= 0x20; - if ( slavedma & 0x30) dma_new |= 0x40; - if (dma_new != dma_old) - outb(dma_new, base + 2); - - local_irq_restore(flags); - - printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n", - hwif->name, base, base + 7); - - hwif->extra_base = base + (hwif->channel ? 8 : 16); - - if (ide_allocate_dma_engine(hwif)) - return -1; - - return 0; -} - -static void hpt374_init(struct pci_dev *dev, struct pci_dev *dev2) -{ - if (dev2->irq != dev->irq) { - /* FIXME: we need a core pci_set_interrupt() */ - dev2->irq = dev->irq; - printk(KERN_INFO DRV_NAME " %s: PCI config space interrupt " - "fixed\n", pci_name(dev2)); - } -} - -static void hpt371_init(struct pci_dev *dev) -{ - u8 mcr1 = 0; - - /* - * HPT371 chips physically have only one channel, the secondary one, - * but the primary channel registers do exist! Go figure... - * So, we manually disable the non-existing channel here - * (if the BIOS hasn't done this already). - */ - pci_read_config_byte(dev, 0x50, &mcr1); - if (mcr1 & 0x04) - pci_write_config_byte(dev, 0x50, mcr1 & ~0x04); -} - -static int hpt36x_init(struct pci_dev *dev, struct pci_dev *dev2) -{ - u8 mcr1 = 0, pin1 = 0, pin2 = 0; - - /* - * Now we'll have to force both channels enabled if - * at least one of them has been enabled by BIOS... - */ - pci_read_config_byte(dev, 0x50, &mcr1); - if (mcr1 & 0x30) - pci_write_config_byte(dev, 0x50, mcr1 | 0x30); - - pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &pin1); - pci_read_config_byte(dev2, PCI_INTERRUPT_PIN, &pin2); - - if (pin1 != pin2 && dev->irq == dev2->irq) { - printk(KERN_INFO DRV_NAME " %s: onboard version of chipset, " - "pin1=%d pin2=%d\n", pci_name(dev), pin1, pin2); - return 1; - } - - return 0; -} - -#define IDE_HFLAGS_HPT3XX \ - (IDE_HFLAG_NO_ATAPI_DMA | \ - IDE_HFLAG_OFF_BOARD) - -static const struct ide_port_ops hpt3xx_port_ops = { - .set_pio_mode = hpt3xx_set_pio_mode, - .set_dma_mode = hpt3xx_set_mode, - .maskproc = hpt3xx_maskproc, - .mdma_filter = hpt3xx_mdma_filter, - .udma_filter = hpt3xx_udma_filter, - .cable_detect = hpt3xx_cable_detect, -}; - -static const struct ide_dma_ops hpt37x_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = ide_dma_start, - .dma_end = hpt374_dma_end, - .dma_test_irq = hpt374_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = ide_dma_sff_read_status, -}; - -static const struct ide_dma_ops hpt370_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = hpt370_dma_start, - .dma_end = hpt370_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_clear = hpt370_irq_timeout, - .dma_sff_read_status = ide_dma_sff_read_status, -}; - -static const struct ide_dma_ops hpt36x_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = ide_dma_start, - .dma_end = ide_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = hpt366_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = ide_dma_sff_read_status, -}; - -static const struct ide_port_info hpt366_chipsets[] = { - { /* 0: HPT36x */ - .name = DRV_NAME, - .init_chipset = init_chipset_hpt366, - .init_hwif = init_hwif_hpt366, - .init_dma = init_dma_hpt366, - /* - * HPT36x chips have one channel per function and have - * both channel enable bits located differently and visible - * to both functions -- really stupid design decision... :-( - * Bit 4 is for the primary channel, bit 5 for the secondary. - */ - .enablebits = {{0x50,0x10,0x10}, {0x54,0x04,0x04}}, - .port_ops = &hpt3xx_port_ops, - .dma_ops = &hpt36x_dma_ops, - .host_flags = IDE_HFLAGS_HPT3XX | IDE_HFLAG_SINGLE, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - }, - { /* 1: HPT3xx */ - .name = DRV_NAME, - .init_chipset = init_chipset_hpt366, - .init_hwif = init_hwif_hpt366, - .init_dma = init_dma_hpt366, - .enablebits = {{0x50,0x04,0x04}, {0x54,0x04,0x04}}, - .port_ops = &hpt3xx_port_ops, - .dma_ops = &hpt37x_dma_ops, - .host_flags = IDE_HFLAGS_HPT3XX, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - } -}; - -/** - * hpt366_init_one - called when an HPT366 is found - * @dev: the hpt366 device - * @id: the matching pci id - * - * Called when the PCI registration layer (or the IDE initialization) - * finds a device matching our IDE device tables. - */ -static int hpt366_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - const struct hpt_info *info = NULL; - struct hpt_info *dyn_info; - struct pci_dev *dev2 = NULL; - struct ide_port_info d; - u8 idx = id->driver_data; - u8 rev = dev->revision; - int ret; - - if ((idx == 0 || idx == 4) && (PCI_FUNC(dev->devfn) & 1)) - return -ENODEV; - - switch (idx) { - case 0: - if (rev < 3) - info = &hpt36x; - else { - switch (min_t(u8, rev, 6)) { - case 3: info = &hpt370; break; - case 4: info = &hpt370a; break; - case 5: info = &hpt372; break; - case 6: info = &hpt372n; break; - } - idx++; - } - break; - case 1: - info = (rev > 1) ? &hpt372n : &hpt372a; - break; - case 2: - info = (rev > 1) ? &hpt302n : &hpt302; - break; - case 3: - hpt371_init(dev); - info = (rev > 1) ? &hpt371n : &hpt371; - break; - case 4: - info = &hpt374; - break; - case 5: - info = &hpt372n; - break; - } - - printk(KERN_INFO DRV_NAME ": %s chipset detected\n", info->chip_name); - - d = hpt366_chipsets[min_t(u8, idx, 1)]; - - d.udma_mask = info->udma_mask; - - /* fixup ->dma_ops for HPT370/HPT370A */ - if (info == &hpt370 || info == &hpt370a) - d.dma_ops = &hpt370_dma_ops; - - if (info == &hpt36x || info == &hpt374) - dev2 = pci_get_slot(dev->bus, dev->devfn + 1); - - dyn_info = kcalloc(dev2 ? 2 : 1, sizeof(*dyn_info), GFP_KERNEL); - if (dyn_info == NULL) { - printk(KERN_ERR "%s %s: out of memory!\n", - d.name, pci_name(dev)); - pci_dev_put(dev2); - return -ENOMEM; - } - - /* - * Copy everything from a static "template" structure - * to just allocated per-chip hpt_info structure. - */ - memcpy(dyn_info, info, sizeof(*dyn_info)); - - if (dev2) { - memcpy(dyn_info + 1, info, sizeof(*dyn_info)); - - if (info == &hpt374) - hpt374_init(dev, dev2); - else { - if (hpt36x_init(dev, dev2)) - d.host_flags &= ~IDE_HFLAG_NON_BOOTABLE; - } - - ret = ide_pci_init_two(dev, dev2, &d, dyn_info); - if (ret < 0) { - pci_dev_put(dev2); - kfree(dyn_info); - } - return ret; - } - - ret = ide_pci_init_one(dev, &d, dyn_info); - if (ret < 0) - kfree(dyn_info); - - return ret; -} - -static void hpt366_remove(struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - struct ide_info *info = host->host_priv; - struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL; - - ide_pci_remove(dev); - pci_dev_put(dev2); - kfree(info); -} - -static const struct pci_device_id hpt366_pci_tbl[] = { - { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT366), 0 }, - { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372), 1 }, - { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT302), 2 }, - { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT371), 3 }, - { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT374), 4 }, - { PCI_VDEVICE(TTI, PCI_DEVICE_ID_TTI_HPT372N), 5 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, hpt366_pci_tbl); - -static struct pci_driver hpt366_pci_driver = { - .name = "HPT366_IDE", - .id_table = hpt366_pci_tbl, - .probe = hpt366_init_one, - .remove = hpt366_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init hpt366_ide_init(void) -{ - return ide_pci_register_driver(&hpt366_pci_driver); -} - -static void __exit hpt366_ide_exit(void) -{ - pci_unregister_driver(&hpt366_pci_driver); -} - -module_init(hpt366_ide_init); -module_exit(hpt366_ide_exit); - -MODULE_AUTHOR("Andre Hedrick"); -MODULE_DESCRIPTION("PCI driver module for Highpoint HPT366 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/ht6560b.c b/drivers/ide/ht6560b.c deleted file mode 100644 index 743bc3693ac8..000000000000 --- a/drivers/ide/ht6560b.c +++ /dev/null @@ -1,383 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1995-2000 Linus Torvalds & author (see below) - */ - -/* - * HT-6560B EIDE-controller support - * To activate controller support use kernel parameter "ide0=ht6560b". - * Use hdparm utility to enable PIO mode support. - * - * Author: Mikko Ala-Fossi <maf@iki.fi> - * Jan Evert van Grootheest <j.e.van.grootheest@caiway.nl> - * - */ - -#define DRV_NAME "ht6560b" -#define HT6560B_VERSION "v0.08" - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/ioport.h> -#include <linux/blkdev.h> -#include <linux/ide.h> -#include <linux/init.h> - -#include <asm/io.h> - -/* #define DEBUG */ /* remove comments for DEBUG messages */ - -/* - * The special i/o-port that HT-6560B uses to configuration: - * bit0 (0x01): "1" selects secondary interface - * bit2 (0x04): "1" enables FIFO function - * bit5 (0x20): "1" enables prefetched data read function (???) - * - * The special i/o-port that HT-6560A uses to configuration: - * bit0 (0x01): "1" selects secondary interface - * bit1 (0x02): "1" enables prefetched data read function - * bit2 (0x04): "0" enables multi-master system (?) - * bit3 (0x08): "1" 3 cycle time, "0" 2 cycle time (?) - */ -#define HT_CONFIG_PORT 0x3e6 - -static inline u8 HT_CONFIG(ide_drive_t *drive) -{ - return ((unsigned long)ide_get_drivedata(drive) & 0xff00) >> 8; -} - -/* - * FIFO + PREFETCH (both a/b-model) - */ -#define HT_CONFIG_DEFAULT 0x1c /* no prefetch */ -/* #define HT_CONFIG_DEFAULT 0x3c */ /* with prefetch */ -#define HT_SECONDARY_IF 0x01 -#define HT_PREFETCH_MODE 0x20 - -/* - * ht6560b Timing values: - * - * I reviewed some assembler source listings of htide drivers and found - * out how they setup those cycle time interfacing values, as they at Holtek - * call them. IDESETUP.COM that is supplied with the drivers figures out - * optimal values and fetches those values to drivers. I found out that - * they use Select register to fetch timings to the ide board right after - * interface switching. After that it was quite easy to add code to - * ht6560b.c. - * - * IDESETUP.COM gave me values 0x24, 0x45, 0xaa, 0xff that worked fine - * for hda and hdc. But hdb needed higher values to work, so I guess - * that sometimes it is necessary to give higher value than IDESETUP - * gives. [see cmd640.c for an extreme example of this. -ml] - * - * Perhaps I should explain something about these timing values: - * The higher nibble of value is the Recovery Time (rt) and the lower nibble - * of the value is the Active Time (at). Minimum value 2 is the fastest and - * the maximum value 15 is the slowest. Default values should be 15 for both. - * So 0x24 means 2 for rt and 4 for at. Each of the drives should have - * both values, and IDESETUP gives automatically rt=15 st=15 for CDROMs or - * similar. If value is too small there will be all sorts of failures. - * - * Timing byte consists of - * High nibble: Recovery Cycle Time (rt) - * The valid values range from 2 to 15. The default is 15. - * - * Low nibble: Active Cycle Time (at) - * The valid values range from 2 to 15. The default is 15. - * - * You can obtain optimized timing values by running Holtek IDESETUP.COM - * for DOS. DOS drivers get their timing values from command line, where - * the first value is the Recovery Time and the second value is the - * Active Time for each drive. Smaller value gives higher speed. - * In case of failures you should probably fall back to a higher value. - */ -static inline u8 HT_TIMING(ide_drive_t *drive) -{ - return (unsigned long)ide_get_drivedata(drive) & 0x00ff; -} - -#define HT_TIMING_DEFAULT 0xff - -/* - * This routine handles interface switching for the peculiar hardware design - * on the F.G.I./Holtek HT-6560B VLB IDE interface. - * The HT-6560B can only enable one IDE port at a time, and requires a - * silly sequence (below) whenever we switch between primary and secondary. - */ - -/* - * This routine is invoked from ide.c to prepare for access to a given drive. - */ -static void ht6560b_dev_select(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - unsigned long flags; - static u8 current_select = 0; - static u8 current_timing = 0; - u8 select, timing; - - local_irq_save(flags); - - select = HT_CONFIG(drive); - timing = HT_TIMING(drive); - - /* - * Need to enforce prefetch sometimes because otherwise - * it'll hang (hard). - */ - if (drive->media != ide_disk || - (drive->dev_flags & IDE_DFLAG_PRESENT) == 0) - select |= HT_PREFETCH_MODE; - - if (select != current_select || timing != current_timing) { - current_select = select; - current_timing = timing; - (void)inb(HT_CONFIG_PORT); - (void)inb(HT_CONFIG_PORT); - (void)inb(HT_CONFIG_PORT); - (void)inb(HT_CONFIG_PORT); - outb(select, HT_CONFIG_PORT); - /* - * Set timing for this drive: - */ - outb(timing, hwif->io_ports.device_addr); - (void)inb(hwif->io_ports.status_addr); -#ifdef DEBUG - printk("ht6560b: %s: select=%#x timing=%#x\n", - drive->name, select, timing); -#endif - } - local_irq_restore(flags); - - outb(drive->select | ATA_DEVICE_OBS, hwif->io_ports.device_addr); -} - -/* - * Autodetection and initialization of ht6560b - */ -static int __init try_to_init_ht6560b(void) -{ - u8 orig_value; - int i; - - /* Autodetect ht6560b */ - if ((orig_value = inb(HT_CONFIG_PORT)) == 0xff) - return 0; - - for (i=3;i>0;i--) { - outb(0x00, HT_CONFIG_PORT); - if (!( (~inb(HT_CONFIG_PORT)) & 0x3f )) { - outb(orig_value, HT_CONFIG_PORT); - return 0; - } - } - outb(0x00, HT_CONFIG_PORT); - if ((~inb(HT_CONFIG_PORT))& 0x3f) { - outb(orig_value, HT_CONFIG_PORT); - return 0; - } - /* - * Ht6560b autodetected - */ - outb(HT_CONFIG_DEFAULT, HT_CONFIG_PORT); - outb(HT_TIMING_DEFAULT, 0x1f6); /* Select register */ - (void)inb(0x1f7); /* Status register */ - - printk("ht6560b " HT6560B_VERSION - ": chipset detected and initialized" -#ifdef DEBUG - " with debug enabled" -#endif - "\n" - ); - return 1; -} - -static u8 ht_pio2timings(ide_drive_t *drive, const u8 pio) -{ - int active_time, recovery_time; - int active_cycles, recovery_cycles; - int bus_speed = ide_vlb_clk ? ide_vlb_clk : 50; - - if (pio) { - unsigned int cycle_time; - struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); - - cycle_time = ide_pio_cycle_time(drive, pio); - - /* - * Just like opti621.c we try to calculate the - * actual cycle time for recovery and activity - * according system bus speed. - */ - active_time = t->active; - recovery_time = cycle_time - active_time - t->setup; - /* - * Cycle times should be Vesa bus cycles - */ - active_cycles = (active_time * bus_speed + 999) / 1000; - recovery_cycles = (recovery_time * bus_speed + 999) / 1000; - /* - * Upper and lower limits - */ - if (active_cycles < 2) active_cycles = 2; - if (recovery_cycles < 2) recovery_cycles = 2; - if (active_cycles > 15) active_cycles = 15; - if (recovery_cycles > 15) recovery_cycles = 0; /* 0==16 */ - -#ifdef DEBUG - printk("ht6560b: drive %s setting pio=%d recovery=%d (%dns) active=%d (%dns)\n", drive->name, pio, recovery_cycles, recovery_time, active_cycles, active_time); -#endif - - return (u8)((recovery_cycles << 4) | active_cycles); - } else { - -#ifdef DEBUG - printk("ht6560b: drive %s setting pio=0\n", drive->name); -#endif - - return HT_TIMING_DEFAULT; /* default setting */ - } -} - -static DEFINE_SPINLOCK(ht6560b_lock); - -/* - * Enable/Disable so called prefetch mode - */ -static void ht_set_prefetch(ide_drive_t *drive, u8 state) -{ - unsigned long flags, config; - int t = HT_PREFETCH_MODE << 8; - - spin_lock_irqsave(&ht6560b_lock, flags); - - config = (unsigned long)ide_get_drivedata(drive); - - /* - * Prefetch mode and unmask irq seems to conflict - */ - if (state) { - config |= t; /* enable prefetch mode */ - drive->dev_flags |= IDE_DFLAG_NO_UNMASK; - drive->dev_flags &= ~IDE_DFLAG_UNMASK; - } else { - config &= ~t; /* disable prefetch mode */ - drive->dev_flags &= ~IDE_DFLAG_NO_UNMASK; - } - - ide_set_drivedata(drive, (void *)config); - - spin_unlock_irqrestore(&ht6560b_lock, flags); - -#ifdef DEBUG - printk("ht6560b: drive %s prefetch mode %sabled\n", drive->name, (state ? "en" : "dis")); -#endif -} - -static void ht6560b_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - unsigned long flags, config; - const u8 pio = drive->pio_mode - XFER_PIO_0; - u8 timing; - - switch (pio) { - case 8: /* set prefetch off */ - case 9: /* set prefetch on */ - ht_set_prefetch(drive, pio & 1); - return; - } - - timing = ht_pio2timings(drive, pio); - - spin_lock_irqsave(&ht6560b_lock, flags); - config = (unsigned long)ide_get_drivedata(drive); - config &= 0xff00; - config |= timing; - ide_set_drivedata(drive, (void *)config); - spin_unlock_irqrestore(&ht6560b_lock, flags); - -#ifdef DEBUG - printk("ht6560b: drive %s tuned to pio mode %#x timing=%#x\n", drive->name, pio, timing); -#endif -} - -static void __init ht6560b_init_dev(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - /* Setting default configurations for drives. */ - unsigned long t = (HT_CONFIG_DEFAULT << 8) | HT_TIMING_DEFAULT; - - if (hwif->channel) - t |= (HT_SECONDARY_IF << 8); - - ide_set_drivedata(drive, (void *)t); -} - -static bool probe_ht6560b; - -module_param_named(probe, probe_ht6560b, bool, 0); -MODULE_PARM_DESC(probe, "probe for HT6560B chipset"); - -static const struct ide_tp_ops ht6560b_tp_ops = { - .exec_command = ide_exec_command, - .read_status = ide_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = ide_write_devctl, - - .dev_select = ht6560b_dev_select, - .tf_load = ide_tf_load, - .tf_read = ide_tf_read, - - .input_data = ide_input_data, - .output_data = ide_output_data, -}; - -static const struct ide_port_ops ht6560b_port_ops = { - .init_dev = ht6560b_init_dev, - .set_pio_mode = ht6560b_set_pio_mode, -}; - -static const struct ide_port_info ht6560b_port_info __initconst = { - .name = DRV_NAME, - .chipset = ide_ht6560b, - .tp_ops = &ht6560b_tp_ops, - .port_ops = &ht6560b_port_ops, - .host_flags = IDE_HFLAG_SERIALIZE | /* is this needed? */ - IDE_HFLAG_NO_DMA | - IDE_HFLAG_ABUSE_PREFETCH, - .pio_mask = ATA_PIO4, -}; - -static int __init ht6560b_init(void) -{ - if (probe_ht6560b == 0) - return -ENODEV; - - if (!request_region(HT_CONFIG_PORT, 1, DRV_NAME)) { - printk(KERN_NOTICE "%s: HT_CONFIG_PORT not found\n", - __func__); - return -ENODEV; - } - - if (!try_to_init_ht6560b()) { - printk(KERN_NOTICE "%s: HBA not found\n", __func__); - goto release_region; - } - - return ide_legacy_device_add(&ht6560b_port_info, 0); - -release_region: - release_region(HT_CONFIG_PORT, 1); - return -ENODEV; -} - -module_init(ht6560b_init); - -MODULE_AUTHOR("See Local File"); -MODULE_DESCRIPTION("HT-6560B EIDE-controller support"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/icside.c b/drivers/ide/icside.c deleted file mode 100644 index 329c7e4bc9d0..000000000000 --- a/drivers/ide/icside.c +++ /dev/null @@ -1,692 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (c) 1996-2004 Russell King. - * - * Please note that this platform does not support 32-bit IDE IO. - */ - -#include <linux/string.h> -#include <linux/module.h> -#include <linux/ioport.h> -#include <linux/slab.h> -#include <linux/blkdev.h> -#include <linux/errno.h> -#include <linux/ide.h> -#include <linux/dma-mapping.h> -#include <linux/device.h> -#include <linux/init.h> -#include <linux/scatterlist.h> -#include <linux/io.h> - -#include <asm/dma.h> -#include <asm/ecard.h> - -#define DRV_NAME "icside" - -#define ICS_IDENT_OFFSET 0x2280 - -#define ICS_ARCIN_V5_INTRSTAT 0x0000 -#define ICS_ARCIN_V5_INTROFFSET 0x0004 -#define ICS_ARCIN_V5_IDEOFFSET 0x2800 -#define ICS_ARCIN_V5_IDEALTOFFSET 0x2b80 -#define ICS_ARCIN_V5_IDESTEPPING 6 - -#define ICS_ARCIN_V6_IDEOFFSET_1 0x2000 -#define ICS_ARCIN_V6_INTROFFSET_1 0x2200 -#define ICS_ARCIN_V6_INTRSTAT_1 0x2290 -#define ICS_ARCIN_V6_IDEALTOFFSET_1 0x2380 -#define ICS_ARCIN_V6_IDEOFFSET_2 0x3000 -#define ICS_ARCIN_V6_INTROFFSET_2 0x3200 -#define ICS_ARCIN_V6_INTRSTAT_2 0x3290 -#define ICS_ARCIN_V6_IDEALTOFFSET_2 0x3380 -#define ICS_ARCIN_V6_IDESTEPPING 6 - -struct cardinfo { - unsigned int dataoffset; - unsigned int ctrloffset; - unsigned int stepping; -}; - -static struct cardinfo icside_cardinfo_v5 = { - .dataoffset = ICS_ARCIN_V5_IDEOFFSET, - .ctrloffset = ICS_ARCIN_V5_IDEALTOFFSET, - .stepping = ICS_ARCIN_V5_IDESTEPPING, -}; - -static struct cardinfo icside_cardinfo_v6_1 = { - .dataoffset = ICS_ARCIN_V6_IDEOFFSET_1, - .ctrloffset = ICS_ARCIN_V6_IDEALTOFFSET_1, - .stepping = ICS_ARCIN_V6_IDESTEPPING, -}; - -static struct cardinfo icside_cardinfo_v6_2 = { - .dataoffset = ICS_ARCIN_V6_IDEOFFSET_2, - .ctrloffset = ICS_ARCIN_V6_IDEALTOFFSET_2, - .stepping = ICS_ARCIN_V6_IDESTEPPING, -}; - -struct icside_state { - unsigned int channel; - unsigned int enabled; - void __iomem *irq_port; - void __iomem *ioc_base; - unsigned int sel; - unsigned int type; - struct ide_host *host; -}; - -#define ICS_TYPE_A3IN 0 -#define ICS_TYPE_A3USER 1 -#define ICS_TYPE_V6 3 -#define ICS_TYPE_V5 15 -#define ICS_TYPE_NOTYPE ((unsigned int)-1) - -/* ---------------- Version 5 PCB Support Functions --------------------- */ -/* Prototype: icside_irqenable_arcin_v5 (struct expansion_card *ec, int irqnr) - * Purpose : enable interrupts from card - */ -static void icside_irqenable_arcin_v5 (struct expansion_card *ec, int irqnr) -{ - struct icside_state *state = ec->irq_data; - - writeb(0, state->irq_port + ICS_ARCIN_V5_INTROFFSET); -} - -/* Prototype: icside_irqdisable_arcin_v5 (struct expansion_card *ec, int irqnr) - * Purpose : disable interrupts from card - */ -static void icside_irqdisable_arcin_v5 (struct expansion_card *ec, int irqnr) -{ - struct icside_state *state = ec->irq_data; - - readb(state->irq_port + ICS_ARCIN_V5_INTROFFSET); -} - -static const expansioncard_ops_t icside_ops_arcin_v5 = { - .irqenable = icside_irqenable_arcin_v5, - .irqdisable = icside_irqdisable_arcin_v5, -}; - - -/* ---------------- Version 6 PCB Support Functions --------------------- */ -/* Prototype: icside_irqenable_arcin_v6 (struct expansion_card *ec, int irqnr) - * Purpose : enable interrupts from card - */ -static void icside_irqenable_arcin_v6 (struct expansion_card *ec, int irqnr) -{ - struct icside_state *state = ec->irq_data; - void __iomem *base = state->irq_port; - - state->enabled = 1; - - switch (state->channel) { - case 0: - writeb(0, base + ICS_ARCIN_V6_INTROFFSET_1); - readb(base + ICS_ARCIN_V6_INTROFFSET_2); - break; - case 1: - writeb(0, base + ICS_ARCIN_V6_INTROFFSET_2); - readb(base + ICS_ARCIN_V6_INTROFFSET_1); - break; - } -} - -/* Prototype: icside_irqdisable_arcin_v6 (struct expansion_card *ec, int irqnr) - * Purpose : disable interrupts from card - */ -static void icside_irqdisable_arcin_v6 (struct expansion_card *ec, int irqnr) -{ - struct icside_state *state = ec->irq_data; - - state->enabled = 0; - - readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_1); - readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_2); -} - -/* Prototype: icside_irqprobe(struct expansion_card *ec) - * Purpose : detect an active interrupt from card - */ -static int icside_irqpending_arcin_v6(struct expansion_card *ec) -{ - struct icside_state *state = ec->irq_data; - - return readb(state->irq_port + ICS_ARCIN_V6_INTRSTAT_1) & 1 || - readb(state->irq_port + ICS_ARCIN_V6_INTRSTAT_2) & 1; -} - -static const expansioncard_ops_t icside_ops_arcin_v6 = { - .irqenable = icside_irqenable_arcin_v6, - .irqdisable = icside_irqdisable_arcin_v6, - .irqpending = icside_irqpending_arcin_v6, -}; - -/* - * Handle routing of interrupts. This is called before - * we write the command to the drive. - */ -static void icside_maskproc(ide_drive_t *drive, int mask) -{ - ide_hwif_t *hwif = drive->hwif; - struct expansion_card *ec = ECARD_DEV(hwif->dev); - struct icside_state *state = ecard_get_drvdata(ec); - unsigned long flags; - - local_irq_save(flags); - - state->channel = hwif->channel; - - if (state->enabled && !mask) { - switch (hwif->channel) { - case 0: - writeb(0, state->irq_port + ICS_ARCIN_V6_INTROFFSET_1); - readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_2); - break; - case 1: - writeb(0, state->irq_port + ICS_ARCIN_V6_INTROFFSET_2); - readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_1); - break; - } - } else { - readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_2); - readb(state->irq_port + ICS_ARCIN_V6_INTROFFSET_1); - } - - local_irq_restore(flags); -} - -static const struct ide_port_ops icside_v6_no_dma_port_ops = { - .maskproc = icside_maskproc, -}; - -#ifdef CONFIG_BLK_DEV_IDEDMA_ICS -/* - * SG-DMA support. - * - * Similar to the BM-DMA, but we use the RiscPCs IOMD DMA controllers. - * There is only one DMA controller per card, which means that only - * one drive can be accessed at one time. NOTE! We do not enforce that - * here, but we rely on the main IDE driver spotting that both - * interfaces use the same IRQ, which should guarantee this. - */ - -/* - * Configure the IOMD to give the appropriate timings for the transfer - * mode being requested. We take the advice of the ATA standards, and - * calculate the cycle time based on the transfer mode, and the EIDE - * MW DMA specs that the drive provides in the IDENTIFY command. - * - * We have the following IOMD DMA modes to choose from: - * - * Type Active Recovery Cycle - * A 250 (250) 312 (550) 562 (800) - * B 187 250 437 - * C 125 (125) 125 (375) 250 (500) - * D 62 125 187 - * - * (figures in brackets are actual measured timings) - * - * However, we also need to take care of the read/write active and - * recovery timings: - * - * Read Write - * Mode Active -- Recovery -- Cycle IOMD type - * MW0 215 50 215 480 A - * MW1 80 50 50 150 C - * MW2 70 25 25 120 C - */ -static void icside_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - unsigned long cycle_time = 0; - int use_dma_info = 0; - const u8 xfer_mode = drive->dma_mode; - - switch (xfer_mode) { - case XFER_MW_DMA_2: - cycle_time = 250; - use_dma_info = 1; - break; - - case XFER_MW_DMA_1: - cycle_time = 250; - use_dma_info = 1; - break; - - case XFER_MW_DMA_0: - cycle_time = 480; - break; - - case XFER_SW_DMA_2: - case XFER_SW_DMA_1: - case XFER_SW_DMA_0: - cycle_time = 480; - break; - } - - /* - * If we're going to be doing MW_DMA_1 or MW_DMA_2, we should - * take care to note the values in the ID... - */ - if (use_dma_info && drive->id[ATA_ID_EIDE_DMA_TIME] > cycle_time) - cycle_time = drive->id[ATA_ID_EIDE_DMA_TIME]; - - ide_set_drivedata(drive, (void *)cycle_time); - - printk(KERN_INFO "%s: %s selected (peak %luMB/s)\n", - drive->name, ide_xfer_verbose(xfer_mode), - 2000 / (cycle_time ? cycle_time : (unsigned long) -1)); -} - -static const struct ide_port_ops icside_v6_port_ops = { - .set_dma_mode = icside_set_dma_mode, - .maskproc = icside_maskproc, -}; - -static void icside_dma_host_set(ide_drive_t *drive, int on) -{ -} - -static int icside_dma_end(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct expansion_card *ec = ECARD_DEV(hwif->dev); - - disable_dma(ec->dma); - - return get_dma_residue(ec->dma) != 0; -} - -static void icside_dma_start(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct expansion_card *ec = ECARD_DEV(hwif->dev); - - /* We can not enable DMA on both channels simultaneously. */ - BUG_ON(dma_channel_active(ec->dma)); - enable_dma(ec->dma); -} - -static int icside_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - struct expansion_card *ec = ECARD_DEV(hwif->dev); - struct icside_state *state = ecard_get_drvdata(ec); - unsigned int dma_mode; - - if (cmd->tf_flags & IDE_TFLAG_WRITE) - dma_mode = DMA_MODE_WRITE; - else - dma_mode = DMA_MODE_READ; - - /* - * We can not enable DMA on both channels. - */ - BUG_ON(dma_channel_active(ec->dma)); - - /* - * Ensure that we have the right interrupt routed. - */ - icside_maskproc(drive, 0); - - /* - * Route the DMA signals to the correct interface. - */ - writeb(state->sel | hwif->channel, state->ioc_base); - - /* - * Select the correct timing for this drive. - */ - set_dma_speed(ec->dma, (unsigned long)ide_get_drivedata(drive)); - - /* - * Tell the DMA engine about the SG table and - * data direction. - */ - set_dma_sg(ec->dma, hwif->sg_table, cmd->sg_nents); - set_dma_mode(ec->dma, dma_mode); - - return 0; -} - -static int icside_dma_test_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct expansion_card *ec = ECARD_DEV(hwif->dev); - struct icside_state *state = ecard_get_drvdata(ec); - - return readb(state->irq_port + - (hwif->channel ? - ICS_ARCIN_V6_INTRSTAT_2 : - ICS_ARCIN_V6_INTRSTAT_1)) & 1; -} - -static int icside_dma_init(ide_hwif_t *hwif, const struct ide_port_info *d) -{ - hwif->dmatable_cpu = NULL; - hwif->dmatable_dma = 0; - - return 0; -} - -static const struct ide_dma_ops icside_v6_dma_ops = { - .dma_host_set = icside_dma_host_set, - .dma_setup = icside_dma_setup, - .dma_start = icside_dma_start, - .dma_end = icside_dma_end, - .dma_test_irq = icside_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, -}; -#endif - -static int icside_dma_off_init(ide_hwif_t *hwif, const struct ide_port_info *d) -{ - return -EOPNOTSUPP; -} - -static void icside_setup_ports(struct ide_hw *hw, void __iomem *base, - struct cardinfo *info, struct expansion_card *ec) -{ - unsigned long port = (unsigned long)base + info->dataoffset; - - hw->io_ports.data_addr = port; - hw->io_ports.error_addr = port + (1 << info->stepping); - hw->io_ports.nsect_addr = port + (2 << info->stepping); - hw->io_ports.lbal_addr = port + (3 << info->stepping); - hw->io_ports.lbam_addr = port + (4 << info->stepping); - hw->io_ports.lbah_addr = port + (5 << info->stepping); - hw->io_ports.device_addr = port + (6 << info->stepping); - hw->io_ports.status_addr = port + (7 << info->stepping); - hw->io_ports.ctl_addr = (unsigned long)base + info->ctrloffset; - - hw->irq = ec->irq; - hw->dev = &ec->dev; -} - -static const struct ide_port_info icside_v5_port_info = { - .host_flags = IDE_HFLAG_NO_DMA, - .chipset = ide_acorn, -}; - -static int icside_register_v5(struct icside_state *state, - struct expansion_card *ec) -{ - void __iomem *base; - struct ide_host *host; - struct ide_hw hw, *hws[] = { &hw }; - int ret; - - base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0); - if (!base) - return -ENOMEM; - - state->irq_port = base; - - ec->irqaddr = base + ICS_ARCIN_V5_INTRSTAT; - ec->irqmask = 1; - - ecard_setirq(ec, &icside_ops_arcin_v5, state); - - /* - * Be on the safe side - disable interrupts - */ - icside_irqdisable_arcin_v5(ec, 0); - - icside_setup_ports(&hw, base, &icside_cardinfo_v5, ec); - - host = ide_host_alloc(&icside_v5_port_info, hws, 1); - if (host == NULL) - return -ENODEV; - - state->host = host; - - ecard_set_drvdata(ec, state); - - ret = ide_host_register(host, &icside_v5_port_info, hws); - if (ret) - goto err_free; - - return 0; -err_free: - ide_host_free(host); - ecard_set_drvdata(ec, NULL); - return ret; -} - -static const struct ide_port_info icside_v6_port_info = { - .init_dma = icside_dma_off_init, - .port_ops = &icside_v6_no_dma_port_ops, - .host_flags = IDE_HFLAG_SERIALIZE | IDE_HFLAG_MMIO, - .mwdma_mask = ATA_MWDMA2, - .swdma_mask = ATA_SWDMA2, - .chipset = ide_acorn, -}; - -static int icside_register_v6(struct icside_state *state, - struct expansion_card *ec) -{ - void __iomem *ioc_base, *easi_base; - struct ide_host *host; - unsigned int sel = 0; - int ret; - struct ide_hw hw[2], *hws[] = { &hw[0], &hw[1] }; - struct ide_port_info d = icside_v6_port_info; - - ioc_base = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0); - if (!ioc_base) { - ret = -ENOMEM; - goto out; - } - - easi_base = ioc_base; - - if (ecard_resource_flags(ec, ECARD_RES_EASI)) { - easi_base = ecardm_iomap(ec, ECARD_RES_EASI, 0, 0); - if (!easi_base) { - ret = -ENOMEM; - goto out; - } - - /* - * Enable access to the EASI region. - */ - sel = 1 << 5; - } - - writeb(sel, ioc_base); - - ecard_setirq(ec, &icside_ops_arcin_v6, state); - - state->irq_port = easi_base; - state->ioc_base = ioc_base; - state->sel = sel; - - /* - * Be on the safe side - disable interrupts - */ - icside_irqdisable_arcin_v6(ec, 0); - - icside_setup_ports(&hw[0], easi_base, &icside_cardinfo_v6_1, ec); - icside_setup_ports(&hw[1], easi_base, &icside_cardinfo_v6_2, ec); - - host = ide_host_alloc(&d, hws, 2); - if (host == NULL) - return -ENODEV; - - state->host = host; - - ecard_set_drvdata(ec, state); - -#ifdef CONFIG_BLK_DEV_IDEDMA_ICS - if (ec->dma != NO_DMA && !request_dma(ec->dma, DRV_NAME)) { - d.init_dma = icside_dma_init; - d.port_ops = &icside_v6_port_ops; - d.dma_ops = &icside_v6_dma_ops; - } -#endif - - ret = ide_host_register(host, &d, hws); - if (ret) - goto err_free; - - return 0; -err_free: - ide_host_free(host); - if (d.dma_ops) - free_dma(ec->dma); - ecard_set_drvdata(ec, NULL); -out: - return ret; -} - -static int icside_probe(struct expansion_card *ec, const struct ecard_id *id) -{ - struct icside_state *state; - void __iomem *idmem; - int ret; - - ret = ecard_request_resources(ec); - if (ret) - goto out; - - state = kzalloc(sizeof(struct icside_state), GFP_KERNEL); - if (!state) { - ret = -ENOMEM; - goto release; - } - - state->type = ICS_TYPE_NOTYPE; - - idmem = ecardm_iomap(ec, ECARD_RES_IOCFAST, 0, 0); - if (idmem) { - unsigned int type; - - type = readb(idmem + ICS_IDENT_OFFSET) & 1; - type |= (readb(idmem + ICS_IDENT_OFFSET + 4) & 1) << 1; - type |= (readb(idmem + ICS_IDENT_OFFSET + 8) & 1) << 2; - type |= (readb(idmem + ICS_IDENT_OFFSET + 12) & 1) << 3; - ecardm_iounmap(ec, idmem); - - state->type = type; - } - - switch (state->type) { - case ICS_TYPE_A3IN: - dev_warn(&ec->dev, "A3IN unsupported\n"); - ret = -ENODEV; - break; - - case ICS_TYPE_A3USER: - dev_warn(&ec->dev, "A3USER unsupported\n"); - ret = -ENODEV; - break; - - case ICS_TYPE_V5: - ret = icside_register_v5(state, ec); - break; - - case ICS_TYPE_V6: - ret = icside_register_v6(state, ec); - break; - - default: - dev_warn(&ec->dev, "unknown interface type\n"); - ret = -ENODEV; - break; - } - - if (ret == 0) - goto out; - - kfree(state); - release: - ecard_release_resources(ec); - out: - return ret; -} - -static void icside_remove(struct expansion_card *ec) -{ - struct icside_state *state = ecard_get_drvdata(ec); - - switch (state->type) { - case ICS_TYPE_V5: - /* FIXME: tell IDE to stop using the interface */ - - /* Disable interrupts */ - icside_irqdisable_arcin_v5(ec, 0); - break; - - case ICS_TYPE_V6: - /* FIXME: tell IDE to stop using the interface */ - if (ec->dma != NO_DMA) - free_dma(ec->dma); - - /* Disable interrupts */ - icside_irqdisable_arcin_v6(ec, 0); - - /* Reset the ROM pointer/EASI selection */ - writeb(0, state->ioc_base); - break; - } - - ecard_set_drvdata(ec, NULL); - - kfree(state); - ecard_release_resources(ec); -} - -static void icside_shutdown(struct expansion_card *ec) -{ - struct icside_state *state = ecard_get_drvdata(ec); - unsigned long flags; - - /* - * Disable interrupts from this card. We need to do - * this before disabling EASI since we may be accessing - * this register via that region. - */ - local_irq_save(flags); - ec->ops->irqdisable(ec, 0); - local_irq_restore(flags); - - /* - * Reset the ROM pointer so that we can read the ROM - * after a soft reboot. This also disables access to - * the IDE taskfile via the EASI region. - */ - if (state->ioc_base) - writeb(0, state->ioc_base); -} - -static const struct ecard_id icside_ids[] = { - { MANU_ICS, PROD_ICS_IDE }, - { MANU_ICS2, PROD_ICS2_IDE }, - { 0xffff, 0xffff } -}; - -static struct ecard_driver icside_driver = { - .probe = icside_probe, - .remove = icside_remove, - .shutdown = icside_shutdown, - .id_table = icside_ids, - .drv = { - .name = "icside", - }, -}; - -static int __init icside_init(void) -{ - return ecard_register_driver(&icside_driver); -} - -static void __exit icside_exit(void) -{ - ecard_remove_driver(&icside_driver); -} - -MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>"); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("ICS IDE driver"); - -module_init(icside_init); -module_exit(icside_exit); diff --git a/drivers/ide/ide-4drives.c b/drivers/ide/ide-4drives.c deleted file mode 100644 index 06c6215e0cbe..000000000000 --- a/drivers/ide/ide-4drives.c +++ /dev/null @@ -1,65 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/ide.h> - -#define DRV_NAME "ide-4drives" - -static bool probe_4drives; - -module_param_named(probe, probe_4drives, bool, 0); -MODULE_PARM_DESC(probe, "probe for generic IDE chipset with 4 drives/port"); - -static void ide_4drives_init_dev(ide_drive_t *drive) -{ - if (drive->hwif->channel) - drive->select ^= 0x20; -} - -static const struct ide_port_ops ide_4drives_port_ops = { - .init_dev = ide_4drives_init_dev, -}; - -static const struct ide_port_info ide_4drives_port_info = { - .port_ops = &ide_4drives_port_ops, - .host_flags = IDE_HFLAG_SERIALIZE | IDE_HFLAG_NO_DMA | - IDE_HFLAG_4DRIVES, - .chipset = ide_4drives, -}; - -static int __init ide_4drives_init(void) -{ - unsigned long base = 0x1f0, ctl = 0x3f6; - struct ide_hw hw, *hws[] = { &hw, &hw }; - - if (probe_4drives == 0) - return -ENODEV; - - if (!request_region(base, 8, DRV_NAME)) { - printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", - DRV_NAME, base, base + 7); - return -EBUSY; - } - - if (!request_region(ctl, 1, DRV_NAME)) { - printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", - DRV_NAME, ctl); - release_region(base, 8); - return -EBUSY; - } - - memset(&hw, 0, sizeof(hw)); - - ide_std_init_ports(&hw, base, ctl); - hw.irq = 14; - - return ide_host_add(&ide_4drives_port_info, hws, 2, NULL); -} - -module_init(ide_4drives_init); - -MODULE_AUTHOR("Bartlomiej Zolnierkiewicz"); -MODULE_DESCRIPTION("generic IDE chipset with 4 drives/port support"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c deleted file mode 100644 index 05e18d658141..000000000000 --- a/drivers/ide/ide-acpi.c +++ /dev/null @@ -1,622 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Provides ACPI support for IDE drives. - * - * Copyright (C) 2005 Intel Corp. - * Copyright (C) 2005 Randy Dunlap - * Copyright (C) 2006 SUSE Linux Products GmbH - * Copyright (C) 2006 Hannes Reinecke - */ - -#include <linux/acpi.h> -#include <linux/ata.h> -#include <linux/delay.h> -#include <linux/device.h> -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/ide.h> -#include <linux/pci.h> -#include <linux/dmi.h> -#include <linux/module.h> - -#define REGS_PER_GTF 7 - -struct GTM_buffer { - u32 PIO_speed0; - u32 DMA_speed0; - u32 PIO_speed1; - u32 DMA_speed1; - u32 GTM_flags; -}; - -struct ide_acpi_drive_link { - acpi_handle obj_handle; - u8 idbuff[512]; -}; - -struct ide_acpi_hwif_link { - ide_hwif_t *hwif; - acpi_handle obj_handle; - struct GTM_buffer gtm; - struct ide_acpi_drive_link master; - struct ide_acpi_drive_link slave; -}; - -#undef DEBUGGING -/* note: adds function name and KERN_DEBUG */ -#ifdef DEBUGGING -#define DEBPRINT(fmt, args...) \ - printk(KERN_DEBUG "%s: " fmt, __func__, ## args) -#else -#define DEBPRINT(fmt, args...) do {} while (0) -#endif /* DEBUGGING */ - -static bool ide_noacpi; -module_param_named(noacpi, ide_noacpi, bool, 0); -MODULE_PARM_DESC(noacpi, "disable IDE ACPI support"); - -static bool ide_acpigtf; -module_param_named(acpigtf, ide_acpigtf, bool, 0); -MODULE_PARM_DESC(acpigtf, "enable IDE ACPI _GTF support"); - -static bool ide_acpionboot; -module_param_named(acpionboot, ide_acpionboot, bool, 0); -MODULE_PARM_DESC(acpionboot, "call IDE ACPI methods on boot"); - -static bool ide_noacpi_psx; -static int no_acpi_psx(const struct dmi_system_id *id) -{ - ide_noacpi_psx = true; - printk(KERN_NOTICE"%s detected - disable ACPI _PSx.\n", id->ident); - return 0; -} - -static const struct dmi_system_id ide_acpi_dmi_table[] = { - /* Bug 9673. */ - /* We should check if this is because ACPI NVS isn't save/restored. */ - { - .callback = no_acpi_psx, - .ident = "HP nx9005", - .matches = { - DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies Ltd."), - DMI_MATCH(DMI_BIOS_VERSION, "KAM1.60") - }, - }, - - { } /* terminate list */ -}; - -int ide_acpi_init(void) -{ - dmi_check_system(ide_acpi_dmi_table); - return 0; -} - -bool ide_port_acpi(ide_hwif_t *hwif) -{ - return ide_noacpi == 0 && hwif->acpidata; -} - -static acpi_handle acpi_get_child(acpi_handle handle, u64 addr) -{ - struct acpi_device *adev; - - if (!handle || acpi_bus_get_device(handle, &adev)) - return NULL; - - adev = acpi_find_child_device(adev, addr, false); - return adev ? adev->handle : NULL; -} - -/** - * ide_get_dev_handle - finds acpi_handle and PCI device.function - * @dev: device to locate - * @handle: returned acpi_handle for @dev - * @pcidevfn: return PCI device.func for @dev - * - * Returns the ACPI object handle to the corresponding PCI device. - * - * Returns 0 on success, <0 on error. - */ -static int ide_get_dev_handle(struct device *dev, acpi_handle *handle, - u64 *pcidevfn) -{ - struct pci_dev *pdev = to_pci_dev(dev); - unsigned int bus, devnum, func; - u64 addr; - acpi_handle dev_handle; - acpi_status status; - struct acpi_device_info *dinfo = NULL; - int ret = -ENODEV; - - bus = pdev->bus->number; - devnum = PCI_SLOT(pdev->devfn); - func = PCI_FUNC(pdev->devfn); - /* ACPI _ADR encoding for PCI bus: */ - addr = (u64)(devnum << 16 | func); - - DEBPRINT("ENTER: pci %02x:%02x.%01x\n", bus, devnum, func); - - dev_handle = ACPI_HANDLE(dev); - if (!dev_handle) { - DEBPRINT("no acpi handle for device\n"); - goto err; - } - - status = acpi_get_object_info(dev_handle, &dinfo); - if (ACPI_FAILURE(status)) { - DEBPRINT("get_object_info for device failed\n"); - goto err; - } - if (dinfo && (dinfo->valid & ACPI_VALID_ADR) && - dinfo->address == addr) { - *pcidevfn = addr; - *handle = dev_handle; - } else { - DEBPRINT("get_object_info for device has wrong " - " address: %llu, should be %u\n", - dinfo ? (unsigned long long)dinfo->address : -1ULL, - (unsigned int)addr); - goto err; - } - - DEBPRINT("for dev=0x%x.%x, addr=0x%llx, *handle=0x%p\n", - devnum, func, (unsigned long long)addr, *handle); - ret = 0; -err: - kfree(dinfo); - return ret; -} - -/** - * ide_acpi_hwif_get_handle - Get ACPI object handle for a given hwif - * @hwif: device to locate - * - * Retrieves the object handle for a given hwif. - * - * Returns handle on success, 0 on error. - */ -static acpi_handle ide_acpi_hwif_get_handle(ide_hwif_t *hwif) -{ - struct device *dev = hwif->gendev.parent; - acpi_handle dev_handle; - u64 pcidevfn; - acpi_handle chan_handle; - int err; - - DEBPRINT("ENTER: device %s\n", hwif->name); - - if (!dev) { - DEBPRINT("no PCI device for %s\n", hwif->name); - return NULL; - } - - err = ide_get_dev_handle(dev, &dev_handle, &pcidevfn); - if (err < 0) { - DEBPRINT("ide_get_dev_handle failed (%d)\n", err); - return NULL; - } - - /* get child objects of dev_handle == channel objects, - * + _their_ children == drive objects */ - /* channel is hwif->channel */ - chan_handle = acpi_get_child(dev_handle, hwif->channel); - DEBPRINT("chan adr=%d: handle=0x%p\n", - hwif->channel, chan_handle); - - return chan_handle; -} - -/** - * do_drive_get_GTF - get the drive bootup default taskfile settings - * @drive: the drive for which the taskfile settings should be retrieved - * @gtf_length: number of bytes of _GTF data returned at @gtf_address - * @gtf_address: buffer containing _GTF taskfile arrays - * - * The _GTF method has no input parameters. - * It returns a variable number of register set values (registers - * hex 1F1..1F7, taskfiles). - * The <variable number> is not known in advance, so have ACPI-CA - * allocate the buffer as needed and return it, then free it later. - * - * The returned @gtf_length and @gtf_address are only valid if the - * function return value is 0. - */ -static int do_drive_get_GTF(ide_drive_t *drive, - unsigned int *gtf_length, unsigned long *gtf_address, - unsigned long *obj_loc) -{ - acpi_status status; - struct acpi_buffer output; - union acpi_object *out_obj; - int err = -ENODEV; - - *gtf_length = 0; - *gtf_address = 0UL; - *obj_loc = 0UL; - - if (!drive->acpidata->obj_handle) { - DEBPRINT("No ACPI object found for %s\n", drive->name); - goto out; - } - - /* Setting up output buffer */ - output.length = ACPI_ALLOCATE_BUFFER; - output.pointer = NULL; /* ACPI-CA sets this; save/free it later */ - - /* _GTF has no input parameters */ - err = -EIO; - status = acpi_evaluate_object(drive->acpidata->obj_handle, "_GTF", - NULL, &output); - if (ACPI_FAILURE(status)) { - printk(KERN_DEBUG - "%s: Run _GTF error: status = 0x%x\n", - __func__, status); - goto out; - } - - if (!output.length || !output.pointer) { - DEBPRINT("Run _GTF: " - "length or ptr is NULL (0x%llx, 0x%p)\n", - (unsigned long long)output.length, - output.pointer); - goto out; - } - - out_obj = output.pointer; - if (out_obj->type != ACPI_TYPE_BUFFER) { - DEBPRINT("Run _GTF: error: " - "expected object type of ACPI_TYPE_BUFFER, " - "got 0x%x\n", out_obj->type); - err = -ENOENT; - kfree(output.pointer); - goto out; - } - - if (!out_obj->buffer.length || !out_obj->buffer.pointer || - out_obj->buffer.length % REGS_PER_GTF) { - printk(KERN_ERR - "%s: unexpected GTF length (%d) or addr (0x%p)\n", - __func__, out_obj->buffer.length, - out_obj->buffer.pointer); - err = -ENOENT; - kfree(output.pointer); - goto out; - } - - *gtf_length = out_obj->buffer.length; - *gtf_address = (unsigned long)out_obj->buffer.pointer; - *obj_loc = (unsigned long)out_obj; - DEBPRINT("returning gtf_length=%d, gtf_address=0x%lx, obj_loc=0x%lx\n", - *gtf_length, *gtf_address, *obj_loc); - err = 0; -out: - return err; -} - -/** - * do_drive_set_taskfiles - write the drive taskfile settings from _GTF - * @drive: the drive to which the taskfile command should be sent - * @gtf_length: total number of bytes of _GTF taskfiles - * @gtf_address: location of _GTF taskfile arrays - * - * Write {gtf_address, length gtf_length} in groups of - * REGS_PER_GTF bytes. - */ -static int do_drive_set_taskfiles(ide_drive_t *drive, - unsigned int gtf_length, - unsigned long gtf_address) -{ - int rc = 0, err; - int gtf_count = gtf_length / REGS_PER_GTF; - int ix; - - DEBPRINT("total GTF bytes=%u (0x%x), gtf_count=%d, addr=0x%lx\n", - gtf_length, gtf_length, gtf_count, gtf_address); - - /* send all taskfile registers (0x1f1-0x1f7) *in*that*order* */ - for (ix = 0; ix < gtf_count; ix++) { - u8 *gtf = (u8 *)(gtf_address + ix * REGS_PER_GTF); - struct ide_cmd cmd; - - DEBPRINT("(0x1f1-1f7): " - "hex: %02x %02x %02x %02x %02x %02x %02x\n", - gtf[0], gtf[1], gtf[2], - gtf[3], gtf[4], gtf[5], gtf[6]); - - if (!ide_acpigtf) { - DEBPRINT("_GTF execution disabled\n"); - continue; - } - - /* convert GTF to taskfile */ - memset(&cmd, 0, sizeof(cmd)); - memcpy(&cmd.tf.feature, gtf, REGS_PER_GTF); - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - - err = ide_no_data_taskfile(drive, &cmd); - if (err) { - printk(KERN_ERR "%s: ide_no_data_taskfile failed: %u\n", - __func__, err); - rc = err; - } - } - - return rc; -} - -/** - * ide_acpi_exec_tfs - get then write drive taskfile settings - * @drive: the drive for which the taskfile settings should be - * written. - * - * According to the ACPI spec this should be called after _STM - * has been evaluated for the interface. Some ACPI vendors interpret - * that as a hard requirement and modify the taskfile according - * to the Identify Drive information passed down with _STM. - * So one should really make sure to call this only after _STM has - * been executed. - */ -int ide_acpi_exec_tfs(ide_drive_t *drive) -{ - int ret; - unsigned int gtf_length; - unsigned long gtf_address; - unsigned long obj_loc; - - DEBPRINT("call get_GTF, drive=%s port=%d\n", drive->name, drive->dn); - - ret = do_drive_get_GTF(drive, >f_length, >f_address, &obj_loc); - if (ret < 0) { - DEBPRINT("get_GTF error (%d)\n", ret); - return ret; - } - - DEBPRINT("call set_taskfiles, drive=%s\n", drive->name); - - ret = do_drive_set_taskfiles(drive, gtf_length, gtf_address); - kfree((void *)obj_loc); - if (ret < 0) { - DEBPRINT("set_taskfiles error (%d)\n", ret); - } - - DEBPRINT("ret=%d\n", ret); - - return ret; -} - -/** - * ide_acpi_get_timing - get the channel (controller) timings - * @hwif: target IDE interface (channel) - * - * This function executes the _GTM ACPI method for the target channel. - * - */ -void ide_acpi_get_timing(ide_hwif_t *hwif) -{ - acpi_status status; - struct acpi_buffer output; - union acpi_object *out_obj; - - /* Setting up output buffer for _GTM */ - output.length = ACPI_ALLOCATE_BUFFER; - output.pointer = NULL; /* ACPI-CA sets this; save/free it later */ - - /* _GTM has no input parameters */ - status = acpi_evaluate_object(hwif->acpidata->obj_handle, "_GTM", - NULL, &output); - - DEBPRINT("_GTM status: %d, outptr: 0x%p, outlen: 0x%llx\n", - status, output.pointer, - (unsigned long long)output.length); - - if (ACPI_FAILURE(status)) { - DEBPRINT("Run _GTM error: status = 0x%x\n", status); - return; - } - - if (!output.length || !output.pointer) { - DEBPRINT("Run _GTM: length or ptr is NULL (0x%llx, 0x%p)\n", - (unsigned long long)output.length, - output.pointer); - kfree(output.pointer); - return; - } - - out_obj = output.pointer; - if (out_obj->type != ACPI_TYPE_BUFFER) { - DEBPRINT("Run _GTM: error: " - "expected object type of ACPI_TYPE_BUFFER, " - "got 0x%x\n", out_obj->type); - kfree(output.pointer); - return; - } - - if (!out_obj->buffer.length || !out_obj->buffer.pointer || - out_obj->buffer.length != sizeof(struct GTM_buffer)) { - printk(KERN_ERR - "%s: unexpected _GTM length (0x%x)[should be 0x%zx] or " - "addr (0x%p)\n", - __func__, out_obj->buffer.length, - sizeof(struct GTM_buffer), out_obj->buffer.pointer); - kfree(output.pointer); - return; - } - - memcpy(&hwif->acpidata->gtm, out_obj->buffer.pointer, - sizeof(struct GTM_buffer)); - - DEBPRINT("_GTM info: ptr: 0x%p, len: 0x%x, exp.len: 0x%zx\n", - out_obj->buffer.pointer, out_obj->buffer.length, - sizeof(struct GTM_buffer)); - - DEBPRINT("_GTM fields: 0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n", - hwif->acpidata->gtm.PIO_speed0, - hwif->acpidata->gtm.DMA_speed0, - hwif->acpidata->gtm.PIO_speed1, - hwif->acpidata->gtm.DMA_speed1, - hwif->acpidata->gtm.GTM_flags); - - kfree(output.pointer); -} - -/** - * ide_acpi_push_timing - set the channel (controller) timings - * @hwif: target IDE interface (channel) - * - * This function executes the _STM ACPI method for the target channel. - * - * _STM requires Identify Drive data, which has to passed as an argument. - * Unfortunately drive->id is a mangled version which we can't readily - * use; hence we'll get the information afresh. - */ -void ide_acpi_push_timing(ide_hwif_t *hwif) -{ - acpi_status status; - struct acpi_object_list input; - union acpi_object in_params[3]; - struct ide_acpi_drive_link *master = &hwif->acpidata->master; - struct ide_acpi_drive_link *slave = &hwif->acpidata->slave; - - /* Give the GTM buffer + drive Identify data to the channel via the - * _STM method: */ - /* setup input parameters buffer for _STM */ - input.count = 3; - input.pointer = in_params; - in_params[0].type = ACPI_TYPE_BUFFER; - in_params[0].buffer.length = sizeof(struct GTM_buffer); - in_params[0].buffer.pointer = (u8 *)&hwif->acpidata->gtm; - in_params[1].type = ACPI_TYPE_BUFFER; - in_params[1].buffer.length = ATA_ID_WORDS * 2; - in_params[1].buffer.pointer = (u8 *)&master->idbuff; - in_params[2].type = ACPI_TYPE_BUFFER; - in_params[2].buffer.length = ATA_ID_WORDS * 2; - in_params[2].buffer.pointer = (u8 *)&slave->idbuff; - /* Output buffer: _STM has no output */ - - status = acpi_evaluate_object(hwif->acpidata->obj_handle, "_STM", - &input, NULL); - - if (ACPI_FAILURE(status)) { - DEBPRINT("Run _STM error: status = 0x%x\n", status); - } - DEBPRINT("_STM status: %d\n", status); -} - -/** - * ide_acpi_set_state - set the channel power state - * @hwif: target IDE interface - * @on: state, on/off - * - * This function executes the _PS0/_PS3 ACPI method to set the power state. - * ACPI spec requires _PS0 when IDE power on and _PS3 when power off - */ -void ide_acpi_set_state(ide_hwif_t *hwif, int on) -{ - ide_drive_t *drive; - int i; - - if (ide_noacpi_psx) - return; - - DEBPRINT("ENTER:\n"); - - /* channel first and then drives for power on and verse versa for power off */ - if (on) - acpi_bus_set_power(hwif->acpidata->obj_handle, ACPI_STATE_D0); - - ide_port_for_each_present_dev(i, drive, hwif) { - if (drive->acpidata->obj_handle) - acpi_bus_set_power(drive->acpidata->obj_handle, - on ? ACPI_STATE_D0 : ACPI_STATE_D3_COLD); - } - - if (!on) - acpi_bus_set_power(hwif->acpidata->obj_handle, - ACPI_STATE_D3_COLD); -} - -/** - * ide_acpi_init_port - initialize the ACPI link for an IDE interface - * @hwif: target IDE interface (channel) - * - * The ACPI spec is not quite clear when the drive identify buffer - * should be obtained. Calling IDENTIFY DEVICE during shutdown - * is not the best of ideas as the drive might already being put to - * sleep. And obviously we can't call it during resume. - * So we get the information during startup; but this means that - * any changes during run-time will be lost after resume. - */ -void ide_acpi_init_port(ide_hwif_t *hwif) -{ - hwif->acpidata = kzalloc(sizeof(struct ide_acpi_hwif_link), GFP_KERNEL); - if (!hwif->acpidata) - return; - - hwif->acpidata->obj_handle = ide_acpi_hwif_get_handle(hwif); - if (!hwif->acpidata->obj_handle) { - DEBPRINT("no ACPI object for %s found\n", hwif->name); - kfree(hwif->acpidata); - hwif->acpidata = NULL; - } -} - -void ide_acpi_port_init_devices(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - int i, err; - - if (hwif->acpidata == NULL) - return; - - /* - * The ACPI spec mandates that we send information - * for both drives, regardless whether they are connected - * or not. - */ - hwif->devices[0]->acpidata = &hwif->acpidata->master; - hwif->devices[1]->acpidata = &hwif->acpidata->slave; - - /* get _ADR info for each device */ - ide_port_for_each_present_dev(i, drive, hwif) { - acpi_handle dev_handle; - - DEBPRINT("ENTER: %s at channel#: %d port#: %d\n", - drive->name, hwif->channel, drive->dn & 1); - - /* TBD: could also check ACPI object VALID bits */ - dev_handle = acpi_get_child(hwif->acpidata->obj_handle, - drive->dn & 1); - - DEBPRINT("drive %s handle 0x%p\n", drive->name, dev_handle); - - drive->acpidata->obj_handle = dev_handle; - } - - /* send IDENTIFY for each device */ - ide_port_for_each_present_dev(i, drive, hwif) { - err = taskfile_lib_get_identify(drive, drive->acpidata->idbuff); - if (err) - DEBPRINT("identify device %s failed (%d)\n", - drive->name, err); - } - - if (ide_noacpi || ide_acpionboot == 0) { - DEBPRINT("ACPI methods disabled on boot\n"); - return; - } - - /* ACPI _PS0 before _STM */ - ide_acpi_set_state(hwif, 1); - /* - * ACPI requires us to call _STM on startup - */ - ide_acpi_get_timing(hwif); - ide_acpi_push_timing(hwif); - - ide_port_for_each_present_dev(i, drive, hwif) { - ide_acpi_exec_tfs(drive); - } -} diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c deleted file mode 100644 index a1ce9f5ac3aa..000000000000 --- a/drivers/ide/ide-atapi.c +++ /dev/null @@ -1,756 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * ATAPI support. - */ - -#include <linux/kernel.h> -#include <linux/cdrom.h> -#include <linux/delay.h> -#include <linux/export.h> -#include <linux/ide.h> -#include <linux/scatterlist.h> -#include <linux/gfp.h> - -#include <scsi/scsi.h> - -#define DRV_NAME "ide-atapi" -#define PFX DRV_NAME ": " - -#ifdef DEBUG -#define debug_log(fmt, args...) \ - printk(KERN_INFO "ide: " fmt, ## args) -#else -#define debug_log(fmt, args...) do {} while (0) -#endif - -#define ATAPI_MIN_CDB_BYTES 12 - -static inline int dev_is_idecd(ide_drive_t *drive) -{ - return drive->media == ide_cdrom || drive->media == ide_optical; -} - -/* - * Check whether we can support a device, - * based on the ATAPI IDENTIFY command results. - */ -int ide_check_atapi_device(ide_drive_t *drive, const char *s) -{ - u16 *id = drive->id; - u8 gcw[2], protocol, device_type, removable, drq_type, packet_size; - - *((u16 *)&gcw) = id[ATA_ID_CONFIG]; - - protocol = (gcw[1] & 0xC0) >> 6; - device_type = gcw[1] & 0x1F; - removable = (gcw[0] & 0x80) >> 7; - drq_type = (gcw[0] & 0x60) >> 5; - packet_size = gcw[0] & 0x03; - -#ifdef CONFIG_PPC - /* kludge for Apple PowerBook internal zip */ - if (drive->media == ide_floppy && device_type == 5 && - !strstr((char *)&id[ATA_ID_PROD], "CD-ROM") && - strstr((char *)&id[ATA_ID_PROD], "ZIP")) - device_type = 0; -#endif - - if (protocol != 2) - printk(KERN_ERR "%s: %s: protocol (0x%02x) is not ATAPI\n", - s, drive->name, protocol); - else if ((drive->media == ide_floppy && device_type != 0) || - (drive->media == ide_tape && device_type != 1)) - printk(KERN_ERR "%s: %s: invalid device type (0x%02x)\n", - s, drive->name, device_type); - else if (removable == 0) - printk(KERN_ERR "%s: %s: the removable flag is not set\n", - s, drive->name); - else if (drive->media == ide_floppy && drq_type == 3) - printk(KERN_ERR "%s: %s: sorry, DRQ type (0x%02x) not " - "supported\n", s, drive->name, drq_type); - else if (packet_size != 0) - printk(KERN_ERR "%s: %s: packet size (0x%02x) is not 12 " - "bytes\n", s, drive->name, packet_size); - else - return 1; - return 0; -} -EXPORT_SYMBOL_GPL(ide_check_atapi_device); - -void ide_init_pc(struct ide_atapi_pc *pc) -{ - memset(pc, 0, sizeof(*pc)); -} -EXPORT_SYMBOL_GPL(ide_init_pc); - -/* - * Add a special packet command request to the tail of the request queue, - * and wait for it to be serviced. - */ -int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk, - struct ide_atapi_pc *pc, void *buf, unsigned int bufflen) -{ - struct request *rq; - int error; - - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); - ide_req(rq)->type = ATA_PRIV_MISC; - ide_req(rq)->special = pc; - - if (buf && bufflen) { - error = blk_rq_map_kern(drive->queue, rq, buf, bufflen, - GFP_NOIO); - if (error) - goto put_req; - } - - memcpy(scsi_req(rq)->cmd, pc->c, 12); - if (drive->media == ide_tape) - scsi_req(rq)->cmd[13] = REQ_IDETAPE_PC1; - blk_execute_rq(disk, rq, 0); - error = scsi_req(rq)->result ? -EIO : 0; -put_req: - blk_put_request(rq); - return error; -} -EXPORT_SYMBOL_GPL(ide_queue_pc_tail); - -int ide_do_test_unit_ready(ide_drive_t *drive, struct gendisk *disk) -{ - struct ide_atapi_pc pc; - - ide_init_pc(&pc); - pc.c[0] = TEST_UNIT_READY; - - return ide_queue_pc_tail(drive, disk, &pc, NULL, 0); -} -EXPORT_SYMBOL_GPL(ide_do_test_unit_ready); - -int ide_do_start_stop(ide_drive_t *drive, struct gendisk *disk, int start) -{ - struct ide_atapi_pc pc; - - ide_init_pc(&pc); - pc.c[0] = START_STOP; - pc.c[4] = start; - - if (drive->media == ide_tape) - pc.flags |= PC_FLAG_WAIT_FOR_DSC; - - return ide_queue_pc_tail(drive, disk, &pc, NULL, 0); -} -EXPORT_SYMBOL_GPL(ide_do_start_stop); - -int ide_set_media_lock(ide_drive_t *drive, struct gendisk *disk, int on) -{ - struct ide_atapi_pc pc; - - if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) == 0) - return 0; - - ide_init_pc(&pc); - pc.c[0] = ALLOW_MEDIUM_REMOVAL; - pc.c[4] = on; - - return ide_queue_pc_tail(drive, disk, &pc, NULL, 0); -} -EXPORT_SYMBOL_GPL(ide_set_media_lock); - -void ide_create_request_sense_cmd(ide_drive_t *drive, struct ide_atapi_pc *pc) -{ - ide_init_pc(pc); - pc->c[0] = REQUEST_SENSE; - if (drive->media == ide_floppy) { - pc->c[4] = 255; - pc->req_xfer = 18; - } else { - pc->c[4] = 20; - pc->req_xfer = 20; - } -} -EXPORT_SYMBOL_GPL(ide_create_request_sense_cmd); - -void ide_prep_sense(ide_drive_t *drive, struct request *rq) -{ - struct request_sense *sense = &drive->sense_data; - struct request *sense_rq; - struct scsi_request *req; - unsigned int cmd_len, sense_len; - int err; - - switch (drive->media) { - case ide_floppy: - cmd_len = 255; - sense_len = 18; - break; - case ide_tape: - cmd_len = 20; - sense_len = 20; - break; - default: - cmd_len = 18; - sense_len = 18; - } - - BUG_ON(sense_len > sizeof(*sense)); - - if (ata_sense_request(rq) || drive->sense_rq_armed) - return; - - sense_rq = drive->sense_rq; - if (!sense_rq) { - sense_rq = blk_mq_alloc_request(drive->queue, REQ_OP_DRV_IN, - BLK_MQ_REQ_RESERVED | BLK_MQ_REQ_NOWAIT); - drive->sense_rq = sense_rq; - } - req = scsi_req(sense_rq); - - memset(sense, 0, sizeof(*sense)); - - scsi_req_init(req); - - err = blk_rq_map_kern(drive->queue, sense_rq, sense, sense_len, - GFP_NOIO); - if (unlikely(err)) { - if (printk_ratelimit()) - printk(KERN_WARNING PFX "%s: failed to map sense " - "buffer\n", drive->name); - blk_mq_free_request(sense_rq); - drive->sense_rq = NULL; - return; - } - - sense_rq->rq_disk = rq->rq_disk; - sense_rq->cmd_flags = REQ_OP_DRV_IN; - ide_req(sense_rq)->type = ATA_PRIV_SENSE; - - req->cmd[0] = GPCMD_REQUEST_SENSE; - req->cmd[4] = cmd_len; - if (drive->media == ide_tape) - req->cmd[13] = REQ_IDETAPE_PC1; - - drive->sense_rq_armed = true; -} -EXPORT_SYMBOL_GPL(ide_prep_sense); - -int ide_queue_sense_rq(ide_drive_t *drive, void *special) -{ - ide_hwif_t *hwif = drive->hwif; - struct request *sense_rq; - unsigned long flags; - - spin_lock_irqsave(&hwif->lock, flags); - - /* deferred failure from ide_prep_sense() */ - if (!drive->sense_rq_armed) { - printk(KERN_WARNING PFX "%s: error queuing a sense request\n", - drive->name); - spin_unlock_irqrestore(&hwif->lock, flags); - return -ENOMEM; - } - - sense_rq = drive->sense_rq; - ide_req(sense_rq)->special = special; - drive->sense_rq_armed = false; - - drive->hwif->rq = NULL; - - ide_insert_request_head(drive, sense_rq); - spin_unlock_irqrestore(&hwif->lock, flags); - return 0; -} -EXPORT_SYMBOL_GPL(ide_queue_sense_rq); - -/* - * Called when an error was detected during the last packet command. - * We queue a request sense packet command at the head of the request - * queue. - */ -void ide_retry_pc(ide_drive_t *drive) -{ - struct request *failed_rq = drive->hwif->rq; - struct request *sense_rq = drive->sense_rq; - struct ide_atapi_pc *pc = &drive->request_sense_pc; - - (void)ide_read_error(drive); - - /* init pc from sense_rq */ - ide_init_pc(pc); - memcpy(pc->c, scsi_req(sense_rq)->cmd, 12); - - if (drive->media == ide_tape) - drive->atapi_flags |= IDE_AFLAG_IGNORE_DSC; - - /* - * Push back the failed request and put request sense on top - * of it. The failed command will be retried after sense data - * is acquired. - */ - drive->hwif->rq = NULL; - ide_requeue_and_plug(drive, failed_rq); - if (ide_queue_sense_rq(drive, pc)) - ide_complete_rq(drive, BLK_STS_IOERR, blk_rq_bytes(failed_rq)); -} -EXPORT_SYMBOL_GPL(ide_retry_pc); - -int ide_cd_expiry(ide_drive_t *drive) -{ - struct request *rq = drive->hwif->rq; - unsigned long wait = 0; - - debug_log("%s: scsi_req(rq)->cmd[0]: 0x%x\n", __func__, scsi_req(rq)->cmd[0]); - - /* - * Some commands are *slow* and normally take a long time to complete. - * Usually we can use the ATAPI "disconnect" to bypass this, but not all - * commands/drives support that. Let ide_timer_expiry keep polling us - * for these. - */ - switch (scsi_req(rq)->cmd[0]) { - case GPCMD_BLANK: - case GPCMD_FORMAT_UNIT: - case GPCMD_RESERVE_RZONE_TRACK: - case GPCMD_CLOSE_TRACK: - case GPCMD_FLUSH_CACHE: - wait = ATAPI_WAIT_PC; - break; - default: - if (!(rq->rq_flags & RQF_QUIET)) - printk(KERN_INFO PFX "cmd 0x%x timed out\n", - scsi_req(rq)->cmd[0]); - wait = 0; - break; - } - return wait; -} -EXPORT_SYMBOL_GPL(ide_cd_expiry); - -int ide_cd_get_xferlen(struct request *rq) -{ - switch (req_op(rq)) { - default: - return 32768; - case REQ_OP_SCSI_IN: - case REQ_OP_SCSI_OUT: - return blk_rq_bytes(rq); - case REQ_OP_DRV_IN: - case REQ_OP_DRV_OUT: - switch (ide_req(rq)->type) { - case ATA_PRIV_PC: - case ATA_PRIV_SENSE: - return blk_rq_bytes(rq); - default: - return 0; - } - } -} -EXPORT_SYMBOL_GPL(ide_cd_get_xferlen); - -void ide_read_bcount_and_ireason(ide_drive_t *drive, u16 *bcount, u8 *ireason) -{ - struct ide_taskfile tf; - - drive->hwif->tp_ops->tf_read(drive, &tf, IDE_VALID_NSECT | - IDE_VALID_LBAM | IDE_VALID_LBAH); - - *bcount = (tf.lbah << 8) | tf.lbam; - *ireason = tf.nsect & 3; -} -EXPORT_SYMBOL_GPL(ide_read_bcount_and_ireason); - -/* - * Check the contents of the interrupt reason register and attempt to recover if - * there are problems. - * - * Returns: - * - 0 if everything's ok - * - 1 if the request has to be terminated. - */ -int ide_check_ireason(ide_drive_t *drive, struct request *rq, int len, - int ireason, int rw) -{ - ide_hwif_t *hwif = drive->hwif; - - debug_log("ireason: 0x%x, rw: 0x%x\n", ireason, rw); - - if (ireason == (!rw << 1)) - return 0; - else if (ireason == (rw << 1)) { - printk(KERN_ERR PFX "%s: %s: wrong transfer direction!\n", - drive->name, __func__); - - if (dev_is_idecd(drive)) - ide_pad_transfer(drive, rw, len); - } else if (!rw && ireason == ATAPI_COD) { - if (dev_is_idecd(drive)) { - /* - * Some drives (ASUS) seem to tell us that status info - * is available. Just get it and ignore. - */ - (void)hwif->tp_ops->read_status(hwif); - return 0; - } - } else { - if (ireason & ATAPI_COD) - printk(KERN_ERR PFX "%s: CoD != 0 in %s\n", drive->name, - __func__); - - /* drive wants a command packet, or invalid ireason... */ - printk(KERN_ERR PFX "%s: %s: bad interrupt reason 0x%02x\n", - drive->name, __func__, ireason); - } - - if (dev_is_idecd(drive) && ata_pc_request(rq)) - rq->rq_flags |= RQF_FAILED; - - return 1; -} -EXPORT_SYMBOL_GPL(ide_check_ireason); - -/* - * This is the usual interrupt handler which will be called during a packet - * command. We will transfer some of the data (as requested by the drive) - * and will re-point interrupt handler to us. - */ -static ide_startstop_t ide_pc_intr(ide_drive_t *drive) -{ - struct ide_atapi_pc *pc = drive->pc; - ide_hwif_t *hwif = drive->hwif; - struct ide_cmd *cmd = &hwif->cmd; - struct request *rq = hwif->rq; - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - unsigned int timeout, done; - u16 bcount; - u8 stat, ireason, dsc = 0; - u8 write = !!(pc->flags & PC_FLAG_WRITING); - - debug_log("Enter %s - interrupt handler\n", __func__); - - timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD - : WAIT_TAPE_CMD; - - /* Clear the interrupt */ - stat = tp_ops->read_status(hwif); - - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { - int rc; - - drive->waiting_for_dma = 0; - rc = hwif->dma_ops->dma_end(drive); - ide_dma_unmap_sg(drive, cmd); - - if (rc || (drive->media == ide_tape && (stat & ATA_ERR))) { - if (drive->media == ide_floppy) - printk(KERN_ERR PFX "%s: DMA %s error\n", - drive->name, rq_data_dir(pc->rq) - ? "write" : "read"); - pc->flags |= PC_FLAG_DMA_ERROR; - } else - scsi_req(rq)->resid_len = 0; - debug_log("%s: DMA finished\n", drive->name); - } - - /* No more interrupts */ - if ((stat & ATA_DRQ) == 0) { - int uptodate; - blk_status_t error; - - debug_log("Packet command completed, %d bytes transferred\n", - blk_rq_bytes(rq)); - - pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; - - local_irq_enable_in_hardirq(); - - if (drive->media == ide_tape && - (stat & ATA_ERR) && scsi_req(rq)->cmd[0] == REQUEST_SENSE) - stat &= ~ATA_ERR; - - if ((stat & ATA_ERR) || (pc->flags & PC_FLAG_DMA_ERROR)) { - /* Error detected */ - debug_log("%s: I/O error\n", drive->name); - - if (drive->media != ide_tape) - scsi_req(pc->rq)->result++; - - if (scsi_req(rq)->cmd[0] == REQUEST_SENSE) { - printk(KERN_ERR PFX "%s: I/O error in request " - "sense command\n", drive->name); - return ide_do_reset(drive); - } - - debug_log("[cmd %x]: check condition\n", scsi_req(rq)->cmd[0]); - - /* Retry operation */ - ide_retry_pc(drive); - - /* queued, but not started */ - return ide_stopped; - } - pc->error = 0; - - if ((pc->flags & PC_FLAG_WAIT_FOR_DSC) && (stat & ATA_DSC) == 0) - dsc = 1; - - /* - * ->pc_callback() might change rq->data_len for - * residual count, cache total length. - */ - done = blk_rq_bytes(rq); - - /* Command finished - Call the callback function */ - uptodate = drive->pc_callback(drive, dsc); - - if (uptodate == 0) - drive->failed_pc = NULL; - - if (ata_misc_request(rq)) { - scsi_req(rq)->result = 0; - error = BLK_STS_OK; - } else { - - if (blk_rq_is_passthrough(rq) && uptodate <= 0) { - if (scsi_req(rq)->result == 0) - scsi_req(rq)->result = -EIO; - } - - error = uptodate ? BLK_STS_OK : BLK_STS_IOERR; - } - - ide_complete_rq(drive, error, blk_rq_bytes(rq)); - return ide_stopped; - } - - if (pc->flags & PC_FLAG_DMA_IN_PROGRESS) { - pc->flags &= ~PC_FLAG_DMA_IN_PROGRESS; - printk(KERN_ERR PFX "%s: The device wants to issue more " - "interrupts in DMA mode\n", drive->name); - ide_dma_off(drive); - return ide_do_reset(drive); - } - - /* Get the number of bytes to transfer on this interrupt. */ - ide_read_bcount_and_ireason(drive, &bcount, &ireason); - - if (ide_check_ireason(drive, rq, bcount, ireason, write)) - return ide_do_reset(drive); - - done = min_t(unsigned int, bcount, cmd->nleft); - ide_pio_bytes(drive, cmd, write, done); - - /* Update transferred byte count */ - scsi_req(rq)->resid_len -= done; - - bcount -= done; - - if (bcount) - ide_pad_transfer(drive, write, bcount); - - debug_log("[cmd %x] transferred %d bytes, padded %d bytes, resid: %u\n", - scsi_req(rq)->cmd[0], done, bcount, scsi_req(rq)->resid_len); - - /* And set the interrupt handler again */ - ide_set_handler(drive, ide_pc_intr, timeout); - return ide_started; -} - -static void ide_init_packet_cmd(struct ide_cmd *cmd, u8 valid_tf, - u16 bcount, u8 dma) -{ - cmd->protocol = dma ? ATAPI_PROT_DMA : ATAPI_PROT_PIO; - cmd->valid.out.tf = IDE_VALID_LBAH | IDE_VALID_LBAM | - IDE_VALID_FEATURE | valid_tf; - cmd->tf.command = ATA_CMD_PACKET; - cmd->tf.feature = dma; /* Use PIO/DMA */ - cmd->tf.lbam = bcount & 0xff; - cmd->tf.lbah = (bcount >> 8) & 0xff; -} - -static u8 ide_read_ireason(ide_drive_t *drive) -{ - struct ide_taskfile tf; - - drive->hwif->tp_ops->tf_read(drive, &tf, IDE_VALID_NSECT); - - return tf.nsect & 3; -} - -static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason) -{ - int retries = 100; - - while (retries-- && ((ireason & ATAPI_COD) == 0 || - (ireason & ATAPI_IO))) { - printk(KERN_ERR PFX "%s: (IO,CoD != (0,1) while issuing " - "a packet command, retrying\n", drive->name); - udelay(100); - ireason = ide_read_ireason(drive); - if (retries == 0) { - printk(KERN_ERR PFX "%s: (IO,CoD != (0,1) while issuing" - " a packet command, ignoring\n", - drive->name); - ireason |= ATAPI_COD; - ireason &= ~ATAPI_IO; - } - } - - return ireason; -} - -static int ide_delayed_transfer_pc(ide_drive_t *drive) -{ - /* Send the actual packet */ - drive->hwif->tp_ops->output_data(drive, NULL, drive->pc->c, 12); - - /* Timeout for the packet command */ - return WAIT_FLOPPY_CMD; -} - -static ide_startstop_t ide_transfer_pc(ide_drive_t *drive) -{ - struct ide_atapi_pc *pc; - ide_hwif_t *hwif = drive->hwif; - struct request *rq = hwif->rq; - ide_expiry_t *expiry; - unsigned int timeout; - int cmd_len; - ide_startstop_t startstop; - u8 ireason; - - if (ide_wait_stat(&startstop, drive, ATA_DRQ, ATA_BUSY, WAIT_READY)) { - printk(KERN_ERR PFX "%s: Strange, packet command initiated yet " - "DRQ isn't asserted\n", drive->name); - return startstop; - } - - if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { - if (drive->dma) - drive->waiting_for_dma = 1; - } - - if (dev_is_idecd(drive)) { - /* ATAPI commands get padded out to 12 bytes minimum */ - cmd_len = COMMAND_SIZE(scsi_req(rq)->cmd[0]); - if (cmd_len < ATAPI_MIN_CDB_BYTES) - cmd_len = ATAPI_MIN_CDB_BYTES; - - timeout = rq->timeout; - expiry = ide_cd_expiry; - } else { - pc = drive->pc; - - cmd_len = ATAPI_MIN_CDB_BYTES; - - /* - * If necessary schedule the packet transfer to occur 'timeout' - * milliseconds later in ide_delayed_transfer_pc() after the - * device says it's ready for a packet. - */ - if (drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) { - timeout = drive->pc_delay; - expiry = &ide_delayed_transfer_pc; - } else { - timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD - : WAIT_TAPE_CMD; - expiry = NULL; - } - - ireason = ide_read_ireason(drive); - if (drive->media == ide_tape) - ireason = ide_wait_ireason(drive, ireason); - - if ((ireason & ATAPI_COD) == 0 || (ireason & ATAPI_IO)) { - printk(KERN_ERR PFX "%s: (IO,CoD) != (0,1) while " - "issuing a packet command\n", drive->name); - - return ide_do_reset(drive); - } - } - - hwif->expiry = expiry; - - /* Set the interrupt routine */ - ide_set_handler(drive, - (dev_is_idecd(drive) ? drive->irq_handler - : ide_pc_intr), - timeout); - - /* Send the actual packet */ - if ((drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) == 0) - hwif->tp_ops->output_data(drive, NULL, scsi_req(rq)->cmd, cmd_len); - - /* Begin DMA, if necessary */ - if (dev_is_idecd(drive)) { - if (drive->dma) - hwif->dma_ops->dma_start(drive); - } else { - if (pc->flags & PC_FLAG_DMA_OK) { - pc->flags |= PC_FLAG_DMA_IN_PROGRESS; - hwif->dma_ops->dma_start(drive); - } - } - - return ide_started; -} - -ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd) -{ - struct ide_atapi_pc *pc; - ide_hwif_t *hwif = drive->hwif; - ide_expiry_t *expiry = NULL; - struct request *rq = hwif->rq; - unsigned int timeout, bytes; - u16 bcount; - u8 valid_tf; - u8 drq_int = !!(drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT); - - if (dev_is_idecd(drive)) { - valid_tf = IDE_VALID_NSECT | IDE_VALID_LBAL; - bcount = ide_cd_get_xferlen(rq); - expiry = ide_cd_expiry; - timeout = ATAPI_WAIT_PC; - - if (drive->dma) - drive->dma = !ide_dma_prepare(drive, cmd); - } else { - pc = drive->pc; - - valid_tf = IDE_VALID_DEVICE; - bytes = blk_rq_bytes(rq); - bcount = ((drive->media == ide_tape) ? bytes - : min_t(unsigned int, - bytes, 63 * 1024)); - - /* We haven't transferred any data yet */ - scsi_req(rq)->resid_len = bcount; - - if (pc->flags & PC_FLAG_DMA_ERROR) { - pc->flags &= ~PC_FLAG_DMA_ERROR; - ide_dma_off(drive); - } - - if (pc->flags & PC_FLAG_DMA_OK) - drive->dma = !ide_dma_prepare(drive, cmd); - - if (!drive->dma) - pc->flags &= ~PC_FLAG_DMA_OK; - - timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD - : WAIT_TAPE_CMD; - } - - ide_init_packet_cmd(cmd, valid_tf, bcount, drive->dma); - - (void)do_rw_taskfile(drive, cmd); - - if (drq_int) { - if (drive->dma) - drive->waiting_for_dma = 0; - hwif->expiry = expiry; - } - - ide_execute_command(drive, cmd, ide_transfer_pc, timeout); - - return drq_int ? ide_started : ide_transfer_pc(drive); -} -EXPORT_SYMBOL_GPL(ide_issue_pc); diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c deleted file mode 100644 index cffbcc27a34c..000000000000 --- a/drivers/ide/ide-cd.c +++ /dev/null @@ -1,1858 +0,0 @@ -/* - * ATAPI CD-ROM driver. - * - * Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov> - * Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org> - * Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de> - * Copyright (C) 2005, 2007-2009 Bartlomiej Zolnierkiewicz - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. - * - * See Documentation/cdrom/ide-cd.rst for usage information. - * - * Suggestions are welcome. Patches that work are more welcome though. ;-) - * - * Documentation: - * Mt. Fuji (SFF8090 version 4) and ATAPI (SFF-8020i rev 2.6) standards. - * - * For historical changelog please see: - * Documentation/ide/ChangeLog.ide-cd.1994-2004 - */ - -#define DRV_NAME "ide-cd" -#define PFX DRV_NAME ": " - -#define IDECD_VERSION "5.00" - -#include <linux/compat.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/sched/task_stack.h> -#include <linux/delay.h> -#include <linux/timer.h> -#include <linux/seq_file.h> -#include <linux/slab.h> -#include <linux/interrupt.h> -#include <linux/errno.h> -#include <linux/cdrom.h> -#include <linux/ide.h> -#include <linux/completion.h> -#include <linux/mutex.h> -#include <linux/bcd.h> - -/* For SCSI -> ATAPI command conversion */ -#include <scsi/scsi.h> - -#include <linux/io.h> -#include <asm/byteorder.h> -#include <linux/uaccess.h> -#include <asm/unaligned.h> - -#include "ide-cd.h" - -static DEFINE_MUTEX(ide_cd_mutex); -static DEFINE_MUTEX(idecd_ref_mutex); - -static void ide_cd_release(struct device *); - -static struct cdrom_info *ide_cd_get(struct gendisk *disk) -{ - struct cdrom_info *cd = NULL; - - mutex_lock(&idecd_ref_mutex); - cd = ide_drv_g(disk, cdrom_info); - if (cd) { - if (ide_device_get(cd->drive)) - cd = NULL; - else - get_device(&cd->dev); - - } - mutex_unlock(&idecd_ref_mutex); - return cd; -} - -static void ide_cd_put(struct cdrom_info *cd) -{ - ide_drive_t *drive = cd->drive; - - mutex_lock(&idecd_ref_mutex); - put_device(&cd->dev); - ide_device_put(drive); - mutex_unlock(&idecd_ref_mutex); -} - -/* - * Generic packet command support and error handling routines. - */ - -/* Mark that we've seen a media change and invalidate our internal buffers. */ -static void cdrom_saw_media_change(ide_drive_t *drive) -{ - drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; - drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID; -} - -static int cdrom_log_sense(ide_drive_t *drive, struct request *rq) -{ - struct request_sense *sense = &drive->sense_data; - int log = 0; - - if (!sense || !rq || (rq->rq_flags & RQF_QUIET)) - return 0; - - ide_debug_log(IDE_DBG_SENSE, "sense_key: 0x%x", sense->sense_key); - - switch (sense->sense_key) { - case NO_SENSE: - case RECOVERED_ERROR: - break; - case NOT_READY: - /* - * don't care about tray state messages for e.g. capacity - * commands or in-progress or becoming ready - */ - if (sense->asc == 0x3a || sense->asc == 0x04) - break; - log = 1; - break; - case ILLEGAL_REQUEST: - /* - * don't log START_STOP unit with LoEj set, since we cannot - * reliably check if drive can auto-close - */ - if (scsi_req(rq)->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24) - break; - log = 1; - break; - case UNIT_ATTENTION: - /* - * Make good and sure we've seen this potential media change. - * Some drives (i.e. Creative) fail to present the correct sense - * key in the error register. - */ - cdrom_saw_media_change(drive); - break; - default: - log = 1; - break; - } - return log; -} - -static void cdrom_analyze_sense_data(ide_drive_t *drive, - struct request *failed_command) -{ - struct request_sense *sense = &drive->sense_data; - struct cdrom_info *info = drive->driver_data; - unsigned long sector; - unsigned long bio_sectors; - - ide_debug_log(IDE_DBG_SENSE, "error_code: 0x%x, sense_key: 0x%x", - sense->error_code, sense->sense_key); - - if (failed_command) - ide_debug_log(IDE_DBG_SENSE, "failed cmd: 0x%x", - failed_command->cmd[0]); - - if (!cdrom_log_sense(drive, failed_command)) - return; - - /* - * If a read toc is executed for a CD-R or CD-RW medium where the first - * toc has not been recorded yet, it will fail with 05/24/00 (which is a - * confusing error) - */ - if (failed_command && scsi_req(failed_command)->cmd[0] == GPCMD_READ_TOC_PMA_ATIP) - if (sense->sense_key == 0x05 && sense->asc == 0x24) - return; - - /* current error */ - if (sense->error_code == 0x70) { - switch (sense->sense_key) { - case MEDIUM_ERROR: - case VOLUME_OVERFLOW: - case ILLEGAL_REQUEST: - if (!sense->valid) - break; - if (failed_command == NULL || - blk_rq_is_passthrough(failed_command)) - break; - sector = (sense->information[0] << 24) | - (sense->information[1] << 16) | - (sense->information[2] << 8) | - (sense->information[3]); - - if (queue_logical_block_size(drive->queue) == 2048) - /* device sector size is 2K */ - sector <<= 2; - - bio_sectors = max(bio_sectors(failed_command->bio), 4U); - sector &= ~(bio_sectors - 1); - - /* - * The SCSI specification allows for the value - * returned by READ CAPACITY to be up to 75 2K - * sectors past the last readable block. - * Therefore, if we hit a medium error within the - * last 75 2K sectors, we decrease the saved size - * value. - */ - if (sector < get_capacity(info->disk) && - drive->probed_capacity - sector < 4 * 75) - set_capacity(info->disk, sector); - } - } - - ide_cd_log_error(drive->name, failed_command, sense); -} - -static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq) -{ - /* - * For ATA_PRIV_SENSE, "ide_req(rq)->special" points to the original - * failed request. Also, the sense data should be read - * directly from rq which might be different from the original - * sense buffer if it got copied during mapping. - */ - struct request *failed = ide_req(rq)->special; - void *sense = bio_data(rq->bio); - - if (failed) { - /* - * Sense is always read into drive->sense_data, copy back to the - * original request. - */ - memcpy(scsi_req(failed)->sense, sense, 18); - scsi_req(failed)->sense_len = scsi_req(rq)->sense_len; - cdrom_analyze_sense_data(drive, failed); - - if (ide_end_rq(drive, failed, BLK_STS_IOERR, blk_rq_bytes(failed))) - BUG(); - } else - cdrom_analyze_sense_data(drive, NULL); -} - - -/* - * Allow the drive 5 seconds to recover; some devices will return NOT_READY - * while flushing data from cache. - * - * returns: 0 failed (write timeout expired) - * 1 success - */ -static int ide_cd_breathe(ide_drive_t *drive, struct request *rq) -{ - - struct cdrom_info *info = drive->driver_data; - - if (!scsi_req(rq)->result) - info->write_timeout = jiffies + ATAPI_WAIT_WRITE_BUSY; - - scsi_req(rq)->result = 1; - - if (time_after(jiffies, info->write_timeout)) - return 0; - else { - /* - * take a breather - */ - blk_mq_requeue_request(rq, false); - blk_mq_delay_kick_requeue_list(drive->queue, 1); - return 1; - } -} - -static void ide_cd_free_sense(ide_drive_t *drive) -{ - if (!drive->sense_rq) - return; - - blk_mq_free_request(drive->sense_rq); - drive->sense_rq = NULL; - drive->sense_rq_armed = false; -} - -/** - * Returns: - * 0: if the request should be continued. - * 1: if the request will be going through error recovery. - * 2: if the request should be ended. - */ -static int cdrom_decode_status(ide_drive_t *drive, u8 stat) -{ - ide_hwif_t *hwif = drive->hwif; - struct request *rq = hwif->rq; - int err, sense_key, do_end_request = 0; - - /* get the IDE error register */ - err = ide_read_error(drive); - sense_key = err >> 4; - - ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, rq->cmd_type: 0x%x, err: 0x%x, " - "stat 0x%x", - rq->cmd[0], rq->cmd_type, err, stat); - - if (ata_sense_request(rq)) { - /* - * We got an error trying to get sense info from the drive - * (probably while trying to recover from a former error). - * Just give up. - */ - rq->rq_flags |= RQF_FAILED; - return 2; - } - - /* if we have an error, pass CHECK_CONDITION as the SCSI status byte */ - if (blk_rq_is_scsi(rq) && !scsi_req(rq)->result) - scsi_req(rq)->result = SAM_STAT_CHECK_CONDITION; - - if (blk_noretry_request(rq)) - do_end_request = 1; - - switch (sense_key) { - case NOT_READY: - if (req_op(rq) == REQ_OP_WRITE) { - if (ide_cd_breathe(drive, rq)) - return 1; - } else { - cdrom_saw_media_change(drive); - - if (!blk_rq_is_passthrough(rq) && - !(rq->rq_flags & RQF_QUIET)) - printk(KERN_ERR PFX "%s: tray open\n", - drive->name); - } - do_end_request = 1; - break; - case UNIT_ATTENTION: - cdrom_saw_media_change(drive); - - if (blk_rq_is_passthrough(rq)) - return 0; - - /* - * Arrange to retry the request but be sure to give up if we've - * retried too many times. - */ - if (++scsi_req(rq)->result > ERROR_MAX) - do_end_request = 1; - break; - case ILLEGAL_REQUEST: - /* - * Don't print error message for this condition -- SFF8090i - * indicates that 5/24/00 is the correct response to a request - * to close the tray if the drive doesn't have that capability. - * - * cdrom_log_sense() knows this! - */ - if (scsi_req(rq)->cmd[0] == GPCMD_START_STOP_UNIT) - break; - fallthrough; - case DATA_PROTECT: - /* - * No point in retrying after an illegal request or data - * protect error. - */ - if (!(rq->rq_flags & RQF_QUIET)) - ide_dump_status(drive, "command error", stat); - do_end_request = 1; - break; - case MEDIUM_ERROR: - /* - * No point in re-trying a zillion times on a bad sector. - * If we got here the error is not correctable. - */ - if (!(rq->rq_flags & RQF_QUIET)) - ide_dump_status(drive, "media error " - "(bad sector)", stat); - do_end_request = 1; - break; - case BLANK_CHECK: - /* disk appears blank? */ - if (!(rq->rq_flags & RQF_QUIET)) - ide_dump_status(drive, "media error (blank)", - stat); - do_end_request = 1; - break; - default: - if (blk_rq_is_passthrough(rq)) - break; - if (err & ~ATA_ABORTED) { - /* go to the default handler for other errors */ - ide_error(drive, "cdrom_decode_status", stat); - return 1; - } else if (++scsi_req(rq)->result > ERROR_MAX) - /* we've racked up too many retries, abort */ - do_end_request = 1; - } - - if (blk_rq_is_passthrough(rq)) { - rq->rq_flags |= RQF_FAILED; - do_end_request = 1; - } - - /* - * End a request through request sense analysis when we have sense data. - * We need this in order to perform end of media processing. - */ - if (do_end_request) - goto end_request; - - /* if we got a CHECK_CONDITION status, queue a request sense command */ - if (stat & ATA_ERR) - return ide_queue_sense_rq(drive, NULL) ? 2 : 1; - return 1; - -end_request: - if (stat & ATA_ERR) { - hwif->rq = NULL; - return ide_queue_sense_rq(drive, rq) ? 2 : 1; - } else - return 2; -} - -static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct ide_cmd *cmd) -{ - struct request *rq = cmd->rq; - - ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]); - - /* - * Some of the trailing request sense fields are optional, - * and some drives don't send them. Sigh. - */ - if (scsi_req(rq)->cmd[0] == GPCMD_REQUEST_SENSE && - cmd->nleft > 0 && cmd->nleft <= 5) - cmd->nleft = 0; -} - -int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, - int write, void *buffer, unsigned *bufflen, - struct scsi_sense_hdr *sshdr, int timeout, - req_flags_t rq_flags) -{ - struct cdrom_info *info = drive->driver_data; - struct scsi_sense_hdr local_sshdr; - int retries = 10; - bool failed; - - ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, " - "rq_flags: 0x%x", - cmd[0], write, timeout, rq_flags); - - if (!sshdr) - sshdr = &local_sshdr; - - /* start of retry loop */ - do { - struct request *rq; - int error; - bool delay = false; - - rq = blk_get_request(drive->queue, - write ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN, 0); - memcpy(scsi_req(rq)->cmd, cmd, BLK_MAX_CDB); - ide_req(rq)->type = ATA_PRIV_PC; - rq->rq_flags |= rq_flags; - rq->timeout = timeout; - if (buffer) { - error = blk_rq_map_kern(drive->queue, rq, buffer, - *bufflen, GFP_NOIO); - if (error) { - blk_put_request(rq); - return error; - } - } - - blk_execute_rq(info->disk, rq, 0); - error = scsi_req(rq)->result ? -EIO : 0; - - if (buffer) - *bufflen = scsi_req(rq)->resid_len; - scsi_normalize_sense(scsi_req(rq)->sense, - scsi_req(rq)->sense_len, sshdr); - - /* - * FIXME: we should probably abort/retry or something in case of - * failure. - */ - failed = (rq->rq_flags & RQF_FAILED) != 0; - if (failed) { - /* - * The request failed. Retry if it was due to a unit - * attention status (usually means media was changed). - */ - if (sshdr->sense_key == UNIT_ATTENTION) - cdrom_saw_media_change(drive); - else if (sshdr->sense_key == NOT_READY && - sshdr->asc == 4 && sshdr->ascq != 4) { - /* - * The drive is in the process of loading - * a disk. Retry, but wait a little to give - * the drive time to complete the load. - */ - delay = true; - } else { - /* otherwise, don't retry */ - retries = 0; - } - --retries; - } - blk_put_request(rq); - if (delay) - ssleep(2); - } while (failed && retries >= 0); - - /* return an error if the command failed */ - return failed ? -EIO : 0; -} - -/* - * returns true if rq has been completed - */ -static bool ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd) -{ - unsigned int nr_bytes = cmd->nbytes - cmd->nleft; - - if (cmd->tf_flags & IDE_TFLAG_WRITE) - nr_bytes -= cmd->last_xfer_len; - - if (nr_bytes > 0) { - ide_complete_rq(drive, BLK_STS_OK, nr_bytes); - return true; - } - - return false; -} - -/* standard prep_rq that builds 10 byte cmds */ -static bool ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) -{ - int hard_sect = queue_logical_block_size(q); - long block = (long)blk_rq_pos(rq) / (hard_sect >> 9); - unsigned long blocks = blk_rq_sectors(rq) / (hard_sect >> 9); - struct scsi_request *req = scsi_req(rq); - - if (rq_data_dir(rq) == READ) - req->cmd[0] = GPCMD_READ_10; - else - req->cmd[0] = GPCMD_WRITE_10; - - /* - * fill in lba - */ - req->cmd[2] = (block >> 24) & 0xff; - req->cmd[3] = (block >> 16) & 0xff; - req->cmd[4] = (block >> 8) & 0xff; - req->cmd[5] = block & 0xff; - - /* - * and transfer length - */ - req->cmd[7] = (blocks >> 8) & 0xff; - req->cmd[8] = blocks & 0xff; - req->cmd_len = 10; - return true; -} - -/* - * Most of the SCSI commands are supported directly by ATAPI devices. - * This transform handles the few exceptions. - */ -static bool ide_cdrom_prep_pc(struct request *rq) -{ - u8 *c = scsi_req(rq)->cmd; - - /* transform 6-byte read/write commands to the 10-byte version */ - if (c[0] == READ_6 || c[0] == WRITE_6) { - c[8] = c[4]; - c[5] = c[3]; - c[4] = c[2]; - c[3] = c[1] & 0x1f; - c[2] = 0; - c[1] &= 0xe0; - c[0] += (READ_10 - READ_6); - scsi_req(rq)->cmd_len = 10; - return true; - } - - /* - * it's silly to pretend we understand 6-byte sense commands, just - * reject with ILLEGAL_REQUEST and the caller should take the - * appropriate action - */ - if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { - scsi_req(rq)->result = ILLEGAL_REQUEST; - return false; - } - - return true; -} - -static bool ide_cdrom_prep_rq(ide_drive_t *drive, struct request *rq) -{ - if (!blk_rq_is_passthrough(rq)) { - scsi_req_init(scsi_req(rq)); - - return ide_cdrom_prep_fs(drive->queue, rq); - } else if (blk_rq_is_scsi(rq)) - return ide_cdrom_prep_pc(rq); - - return true; -} - -static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_cmd *cmd = &hwif->cmd; - struct request *rq = hwif->rq; - ide_expiry_t *expiry = NULL; - int dma_error = 0, dma, thislen, uptodate = 0; - int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc = 0; - int sense = ata_sense_request(rq); - unsigned int timeout; - u16 len; - u8 ireason, stat; - - ide_debug_log(IDE_DBG_PC, "cmd: 0x%x, write: 0x%x", rq->cmd[0], write); - - /* check for errors */ - dma = drive->dma; - if (dma) { - drive->dma = 0; - drive->waiting_for_dma = 0; - dma_error = hwif->dma_ops->dma_end(drive); - ide_dma_unmap_sg(drive, cmd); - if (dma_error) { - printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name, - write ? "write" : "read"); - ide_dma_off(drive); - } - } - - /* check status */ - stat = hwif->tp_ops->read_status(hwif); - - if (!OK_STAT(stat, 0, BAD_R_STAT)) { - rc = cdrom_decode_status(drive, stat); - if (rc) { - if (rc == 2) - goto out_end; - return ide_stopped; - } - } - - /* using dma, transfer is complete now */ - if (dma) { - if (dma_error) - return ide_error(drive, "dma error", stat); - uptodate = 1; - goto out_end; - } - - ide_read_bcount_and_ireason(drive, &len, &ireason); - - thislen = !blk_rq_is_passthrough(rq) ? len : cmd->nleft; - if (thislen > len) - thislen = len; - - ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d", - stat, thislen); - - /* If DRQ is clear, the command has completed. */ - if ((stat & ATA_DRQ) == 0) { - switch (req_op(rq)) { - default: - /* - * If we're not done reading/writing, complain. - * Otherwise, complete the command normally. - */ - uptodate = 1; - if (cmd->nleft > 0) { - printk(KERN_ERR PFX "%s: %s: data underrun " - "(%u bytes)\n", drive->name, __func__, - cmd->nleft); - if (!write) - rq->rq_flags |= RQF_FAILED; - uptodate = 0; - } - goto out_end; - case REQ_OP_DRV_IN: - case REQ_OP_DRV_OUT: - ide_cd_request_sense_fixup(drive, cmd); - - uptodate = cmd->nleft ? 0 : 1; - - /* - * suck out the remaining bytes from the drive in an - * attempt to complete the data xfer. (see BZ#13399) - */ - if (!(stat & ATA_ERR) && !uptodate && thislen) { - ide_pio_bytes(drive, cmd, write, thislen); - uptodate = cmd->nleft ? 0 : 1; - } - - if (!uptodate) - rq->rq_flags |= RQF_FAILED; - goto out_end; - case REQ_OP_SCSI_IN: - case REQ_OP_SCSI_OUT: - goto out_end; - } - } - - rc = ide_check_ireason(drive, rq, len, ireason, write); - if (rc) - goto out_end; - - cmd->last_xfer_len = 0; - - ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, " - "ireason: 0x%x", - rq->cmd_type, ireason); - - /* transfer data */ - while (thislen > 0) { - int blen = min_t(int, thislen, cmd->nleft); - - if (cmd->nleft == 0) - break; - - ide_pio_bytes(drive, cmd, write, blen); - cmd->last_xfer_len += blen; - - thislen -= blen; - len -= blen; - - if (sense && write == 0) - scsi_req(rq)->sense_len += blen; - } - - /* pad, if necessary */ - if (len > 0) { - if (blk_rq_is_passthrough(rq) || write == 0) - ide_pad_transfer(drive, write, len); - else { - printk(KERN_ERR PFX "%s: confused, missing data\n", - drive->name); - blk_dump_rq_flags(rq, "cdrom_newpc_intr"); - } - } - - switch (req_op(rq)) { - case REQ_OP_SCSI_IN: - case REQ_OP_SCSI_OUT: - timeout = rq->timeout; - break; - case REQ_OP_DRV_IN: - case REQ_OP_DRV_OUT: - expiry = ide_cd_expiry; - fallthrough; - default: - timeout = ATAPI_WAIT_PC; - break; - } - - hwif->expiry = expiry; - ide_set_handler(drive, cdrom_newpc_intr, timeout); - return ide_started; - -out_end: - if (blk_rq_is_scsi(rq) && rc == 0) { - scsi_req(rq)->resid_len = 0; - blk_mq_end_request(rq, BLK_STS_OK); - hwif->rq = NULL; - } else { - if (sense && uptodate) - ide_cd_complete_failed_rq(drive, rq); - - if (!blk_rq_is_passthrough(rq)) { - if (cmd->nleft == 0) - uptodate = 1; - } else { - if (uptodate <= 0 && scsi_req(rq)->result == 0) - scsi_req(rq)->result = -EIO; - } - - if (uptodate == 0 && rq->bio) - if (ide_cd_error_cmd(drive, cmd)) - return ide_stopped; - - /* make sure it's fully ended */ - if (blk_rq_is_passthrough(rq)) { - scsi_req(rq)->resid_len -= cmd->nbytes - cmd->nleft; - if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE)) - scsi_req(rq)->resid_len += cmd->last_xfer_len; - } - - ide_complete_rq(drive, uptodate ? BLK_STS_OK : BLK_STS_IOERR, blk_rq_bytes(rq)); - - if (sense && rc == 2) - ide_error(drive, "request sense failure", stat); - } - - ide_cd_free_sense(drive); - return ide_stopped; -} - -static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) -{ - struct cdrom_info *cd = drive->driver_data; - struct request_queue *q = drive->queue; - int write = rq_data_dir(rq) == WRITE; - unsigned short sectors_per_frame = - queue_logical_block_size(q) >> SECTOR_SHIFT; - - ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, " - "secs_per_frame: %u", - rq->cmd[0], rq->cmd_flags, sectors_per_frame); - - if (write) { - /* disk has become write protected */ - if (get_disk_ro(cd->disk)) - return ide_stopped; - } else { - /* - * We may be retrying this request after an error. Fix up any - * weirdness which might be present in the request packet. - */ - ide_cdrom_prep_rq(drive, rq); - } - - /* fs requests *must* be hardware frame aligned */ - if ((blk_rq_sectors(rq) & (sectors_per_frame - 1)) || - (blk_rq_pos(rq) & (sectors_per_frame - 1))) - return ide_stopped; - - /* use DMA, if possible */ - drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); - - if (write) - cd->devinfo.media_written = 1; - - rq->timeout = ATAPI_WAIT_PC; - - return ide_started; -} - -static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) -{ - - ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x", - rq->cmd[0], rq->cmd_type); - - if (blk_rq_is_scsi(rq)) - rq->rq_flags |= RQF_QUIET; - else - rq->rq_flags &= ~RQF_FAILED; - - drive->dma = 0; - - /* sg request */ - if (rq->bio) { - struct request_queue *q = drive->queue; - char *buf = bio_data(rq->bio); - unsigned int alignment; - - drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); - - /* - * check if dma is safe - * - * NOTE! The "len" and "addr" checks should possibly have - * separate masks. - */ - alignment = queue_dma_alignment(q) | q->dma_pad_mask; - if ((unsigned long)buf & alignment - || blk_rq_bytes(rq) & q->dma_pad_mask - || object_is_on_stack(buf)) - drive->dma = 0; - } -} - -static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, - sector_t block) -{ - struct ide_cmd cmd; - int uptodate = 0; - unsigned int nsectors; - - ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu", - rq->cmd[0], (unsigned long long)block); - - if (drive->debug_mask & IDE_DBG_RQ) - blk_dump_rq_flags(rq, "ide_cd_do_request"); - - switch (req_op(rq)) { - default: - if (cdrom_start_rw(drive, rq) == ide_stopped) - goto out_end; - break; - case REQ_OP_SCSI_IN: - case REQ_OP_SCSI_OUT: - handle_pc: - if (!rq->timeout) - rq->timeout = ATAPI_WAIT_PC; - cdrom_do_block_pc(drive, rq); - break; - case REQ_OP_DRV_IN: - case REQ_OP_DRV_OUT: - switch (ide_req(rq)->type) { - case ATA_PRIV_MISC: - /* right now this can only be a reset... */ - uptodate = 1; - goto out_end; - case ATA_PRIV_SENSE: - case ATA_PRIV_PC: - goto handle_pc; - default: - BUG(); - } - } - - /* prepare sense request for this command */ - ide_prep_sense(drive, rq); - - memset(&cmd, 0, sizeof(cmd)); - - if (rq_data_dir(rq)) - cmd.tf_flags |= IDE_TFLAG_WRITE; - - cmd.rq = rq; - - if (!blk_rq_is_passthrough(rq) || blk_rq_bytes(rq)) { - ide_init_sg_cmd(&cmd, blk_rq_bytes(rq)); - ide_map_sg(drive, &cmd); - } - - return ide_issue_pc(drive, &cmd); -out_end: - nsectors = blk_rq_sectors(rq); - - if (nsectors == 0) - nsectors = 1; - - ide_complete_rq(drive, uptodate ? BLK_STS_OK : BLK_STS_IOERR, nsectors << 9); - - return ide_stopped; -} - -/* - * Ioctl handling. - * - * Routines which queue packet commands take as a final argument a pointer to a - * request_sense struct. If execution of the command results in an error with a - * CHECK CONDITION status, this structure will be filled with the results of the - * subsequent request sense command. The pointer can also be NULL, in which case - * no sense information is returned. - */ -static void msf_from_bcd(struct atapi_msf *msf) -{ - msf->minute = bcd2bin(msf->minute); - msf->second = bcd2bin(msf->second); - msf->frame = bcd2bin(msf->frame); -} - -int cdrom_check_status(ide_drive_t *drive, struct scsi_sense_hdr *sshdr) -{ - struct cdrom_info *info = drive->driver_data; - struct cdrom_device_info *cdi; - unsigned char cmd[BLK_MAX_CDB]; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - if (!info) - return -EIO; - - cdi = &info->devinfo; - - memset(cmd, 0, BLK_MAX_CDB); - cmd[0] = GPCMD_TEST_UNIT_READY; - - /* - * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs - * instead of supporting the LOAD_UNLOAD opcode. - */ - cmd[7] = cdi->sanyo_slot % 3; - - return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sshdr, 0, RQF_QUIET); -} - -static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, - unsigned long *sectors_per_frame) -{ - struct { - __be32 lba; - __be32 blocklen; - } capbuf; - - int stat; - unsigned char cmd[BLK_MAX_CDB]; - unsigned len = sizeof(capbuf); - u32 blocklen; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - memset(cmd, 0, BLK_MAX_CDB); - cmd[0] = GPCMD_READ_CDVD_CAPACITY; - - stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, NULL, 0, - RQF_QUIET); - if (stat) - return stat; - - /* - * Sanity check the given block size, in so far as making - * sure the sectors_per_frame we give to the caller won't - * end up being bogus. - */ - blocklen = be32_to_cpu(capbuf.blocklen); - blocklen = (blocklen >> SECTOR_SHIFT) << SECTOR_SHIFT; - switch (blocklen) { - case 512: - case 1024: - case 2048: - case 4096: - break; - default: - printk_once(KERN_ERR PFX "%s: weird block size %u; " - "setting default block size to 2048\n", - drive->name, blocklen); - blocklen = 2048; - break; - } - - *capacity = 1 + be32_to_cpu(capbuf.lba); - *sectors_per_frame = blocklen >> SECTOR_SHIFT; - - ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu", - *capacity, *sectors_per_frame); - - return 0; -} - -static int ide_cdrom_read_tocentry(ide_drive_t *drive, int trackno, - int msf_flag, int format, char *buf, int buflen) -{ - unsigned char cmd[BLK_MAX_CDB]; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - memset(cmd, 0, BLK_MAX_CDB); - - cmd[0] = GPCMD_READ_TOC_PMA_ATIP; - cmd[6] = trackno; - cmd[7] = (buflen >> 8); - cmd[8] = (buflen & 0xff); - cmd[9] = (format << 6); - - if (msf_flag) - cmd[1] = 2; - - return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, NULL, 0, RQF_QUIET); -} - -/* Try to read the entire TOC for the disk into our internal buffer. */ -int ide_cd_read_toc(ide_drive_t *drive) -{ - int stat, ntracks, i; - struct cdrom_info *info = drive->driver_data; - struct cdrom_device_info *cdi = &info->devinfo; - struct atapi_toc *toc = info->toc; - struct { - struct atapi_toc_header hdr; - struct atapi_toc_entry ent; - } ms_tmp; - long last_written; - unsigned long sectors_per_frame = SECTORS_PER_FRAME; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - if (toc == NULL) { - /* try to allocate space */ - toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); - if (toc == NULL) { - printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n", - drive->name); - return -ENOMEM; - } - info->toc = toc; - } - - /* - * Check to see if the existing data is still valid. If it is, - * just return. - */ - (void) cdrom_check_status(drive, NULL); - - if (drive->atapi_flags & IDE_AFLAG_TOC_VALID) - return 0; - - /* try to get the total cdrom capacity and sector size */ - stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame); - if (stat) - toc->capacity = 0x1fffff; - - set_capacity(info->disk, toc->capacity * sectors_per_frame); - /* save a private copy of the TOC capacity for error handling */ - drive->probed_capacity = toc->capacity * sectors_per_frame; - - blk_queue_logical_block_size(drive->queue, - sectors_per_frame << SECTOR_SHIFT); - - /* first read just the header, so we know how long the TOC is */ - stat = ide_cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, - sizeof(struct atapi_toc_header)); - if (stat) - return stat; - - if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { - toc->hdr.first_track = bcd2bin(toc->hdr.first_track); - toc->hdr.last_track = bcd2bin(toc->hdr.last_track); - } - - ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; - if (ntracks <= 0) - return -EIO; - if (ntracks > MAX_TRACKS) - ntracks = MAX_TRACKS; - - /* now read the whole schmeer */ - stat = ide_cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, - (char *)&toc->hdr, - sizeof(struct atapi_toc_header) + - (ntracks + 1) * - sizeof(struct atapi_toc_entry)); - - if (stat && toc->hdr.first_track > 1) { - /* - * Cds with CDI tracks only don't have any TOC entries, despite - * of this the returned values are - * first_track == last_track = number of CDI tracks + 1, - * so that this case is indistinguishable from the same layout - * plus an additional audio track. If we get an error for the - * regular case, we assume a CDI without additional audio - * tracks. In this case the readable TOC is empty (CDI tracks - * are not included) and only holds the Leadout entry. - * - * Heiko Eißfeldt. - */ - ntracks = 0; - stat = ide_cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, - (char *)&toc->hdr, - sizeof(struct atapi_toc_header) + - (ntracks + 1) * - sizeof(struct atapi_toc_entry)); - if (stat) - return stat; - - if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { - toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT); - toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT); - } else { - toc->hdr.first_track = CDROM_LEADOUT; - toc->hdr.last_track = CDROM_LEADOUT; - } - } - - if (stat) - return stat; - - toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); - - if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { - toc->hdr.first_track = bcd2bin(toc->hdr.first_track); - toc->hdr.last_track = bcd2bin(toc->hdr.last_track); - } - - for (i = 0; i <= ntracks; i++) { - if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { - if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) - toc->ent[i].track = bcd2bin(toc->ent[i].track); - msf_from_bcd(&toc->ent[i].addr.msf); - } - toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, - toc->ent[i].addr.msf.second, - toc->ent[i].addr.msf.frame); - } - - if (toc->hdr.first_track != CDROM_LEADOUT) { - /* read the multisession information */ - stat = ide_cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, - sizeof(ms_tmp)); - if (stat) - return stat; - - toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); - } else { - ms_tmp.hdr.last_track = CDROM_LEADOUT; - ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; - toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ - } - - if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { - /* re-read multisession information using MSF format */ - stat = ide_cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, - sizeof(ms_tmp)); - if (stat) - return stat; - - msf_from_bcd(&ms_tmp.ent.addr.msf); - toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, - ms_tmp.ent.addr.msf.second, - ms_tmp.ent.addr.msf.frame); - } - - toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); - - /* now try to get the total cdrom capacity */ - stat = cdrom_get_last_written(cdi, &last_written); - if (!stat && (last_written > toc->capacity)) { - toc->capacity = last_written; - set_capacity(info->disk, toc->capacity * sectors_per_frame); - drive->probed_capacity = toc->capacity * sectors_per_frame; - } - - /* Remember that we've read this stuff. */ - drive->atapi_flags |= IDE_AFLAG_TOC_VALID; - - return 0; -} - -int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) -{ - struct cdrom_info *info = drive->driver_data; - struct cdrom_device_info *cdi = &info->devinfo; - struct packet_command cgc; - int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0) - size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; - - init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); - do { - /* we seem to get stat=0x01,err=0x00 the first time (??) */ - stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); - if (!stat) - break; - } while (--attempts); - return stat; -} - -void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) -{ - struct cdrom_info *cd = drive->driver_data; - u16 curspeed, maxspeed; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) { - curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]); - maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]); - } else { - curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]); - maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]); - } - - ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u", - curspeed, maxspeed); - - cd->current_speed = DIV_ROUND_CLOSEST(curspeed, 176); - cd->max_speed = DIV_ROUND_CLOSEST(maxspeed, 176); -} - -#define IDE_CD_CAPABILITIES \ - (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ - CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ - CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ - CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ - CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) - -static const struct cdrom_device_ops ide_cdrom_dops = { - .open = ide_cdrom_open_real, - .release = ide_cdrom_release_real, - .drive_status = ide_cdrom_drive_status, - .check_events = ide_cdrom_check_events_real, - .tray_move = ide_cdrom_tray_move, - .lock_door = ide_cdrom_lock_door, - .select_speed = ide_cdrom_select_speed, - .get_last_session = ide_cdrom_get_last_session, - .get_mcn = ide_cdrom_get_mcn, - .reset = ide_cdrom_reset, - .audio_ioctl = ide_cdrom_audio_ioctl, - .capability = IDE_CD_CAPABILITIES, - .generic_packet = ide_cdrom_packet, -}; - -static int ide_cdrom_register(ide_drive_t *drive, int nslots) -{ - struct cdrom_info *info = drive->driver_data; - struct cdrom_device_info *devinfo = &info->devinfo; - - ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots); - - devinfo->ops = &ide_cdrom_dops; - devinfo->speed = info->current_speed; - devinfo->capacity = nslots; - devinfo->handle = drive; - strcpy(devinfo->name, drive->name); - - if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT) - devinfo->mask |= CDC_SELECT_SPEED; - - return register_cdrom(info->disk, devinfo); -} - -static int ide_cdrom_probe_capabilities(ide_drive_t *drive) -{ - struct cdrom_info *cd = drive->driver_data; - struct cdrom_device_info *cdi = &cd->devinfo; - u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; - mechtype_t mechtype; - int nslots = 1; - - ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx", - drive->media, drive->atapi_flags); - - cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | - CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | - CDC_MO_DRIVE | CDC_RAM); - - if (drive->media == ide_optical) { - cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); - printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n", - drive->name); - return nslots; - } - - if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) { - drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; - cdi->mask &= ~CDC_PLAY_AUDIO; - return nslots; - } - - /* - * We have to cheat a little here. the packet will eventually be queued - * with ide_cdrom_packet(), which extracts the drive from cdi->handle. - * Since this device hasn't been registered with the Uniform layer yet, - * it can't do this. Same goes for cdi->ops. - */ - cdi->handle = drive; - cdi->ops = &ide_cdrom_dops; - - if (ide_cdrom_get_capabilities(drive, buf)) - return 0; - - if ((buf[8 + 6] & 0x01) == 0) - drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; - if (buf[8 + 6] & 0x08) - drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; - if (buf[8 + 3] & 0x01) - cdi->mask &= ~CDC_CD_R; - if (buf[8 + 3] & 0x02) - cdi->mask &= ~(CDC_CD_RW | CDC_RAM); - if (buf[8 + 2] & 0x38) - cdi->mask &= ~CDC_DVD; - if (buf[8 + 3] & 0x20) - cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); - if (buf[8 + 3] & 0x10) - cdi->mask &= ~CDC_DVD_R; - if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK)) - cdi->mask &= ~CDC_PLAY_AUDIO; - - mechtype = buf[8 + 6] >> 5; - if (mechtype == mechtype_caddy || - mechtype == mechtype_popup || - (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE)) - cdi->mask |= CDC_CLOSE_TRAY; - - if (cdi->sanyo_slot > 0) { - cdi->mask &= ~CDC_SELECT_DISC; - nslots = 3; - } else if (mechtype == mechtype_individual_changer || - mechtype == mechtype_cartridge_changer) { - nslots = cdrom_number_of_slots(cdi); - if (nslots > 1) - cdi->mask &= ~CDC_SELECT_DISC; - } - - ide_cdrom_update_speed(drive, buf); - - printk(KERN_INFO PFX "%s: ATAPI", drive->name); - - /* don't print speed if the drive reported 0 */ - if (cd->max_speed) - printk(KERN_CONT " %dX", cd->max_speed); - - printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); - - if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) - printk(KERN_CONT " DVD%s%s", - (cdi->mask & CDC_DVD_R) ? "" : "-R", - (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM"); - - if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) - printk(KERN_CONT " CD%s%s", - (cdi->mask & CDC_CD_R) ? "" : "-R", - (cdi->mask & CDC_CD_RW) ? "" : "/RW"); - - if ((cdi->mask & CDC_SELECT_DISC) == 0) - printk(KERN_CONT " changer w/%d slots", nslots); - else - printk(KERN_CONT " drive"); - - printk(KERN_CONT ", %dkB Cache\n", - be16_to_cpup((__be16 *)&buf[8 + 12])); - - return nslots; -} - -struct cd_list_entry { - const char *id_model; - const char *id_firmware; - unsigned int cd_flags; -}; - -#ifdef CONFIG_IDE_PROC_FS -static sector_t ide_cdrom_capacity(ide_drive_t *drive) -{ - unsigned long capacity, sectors_per_frame; - - if (cdrom_read_capacity(drive, &capacity, §ors_per_frame)) - return 0; - - return capacity * sectors_per_frame; -} - -static int idecd_capacity_proc_show(struct seq_file *m, void *v) -{ - ide_drive_t *drive = m->private; - - seq_printf(m, "%llu\n", (long long)ide_cdrom_capacity(drive)); - return 0; -} - -static ide_proc_entry_t idecd_proc[] = { - { "capacity", S_IFREG|S_IRUGO, idecd_capacity_proc_show }, - {} -}; - -static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive) -{ - return idecd_proc; -} - -static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive) -{ - return NULL; -} -#endif - -static const struct cd_list_entry ide_cd_quirks_list[] = { - /* SCR-3231 doesn't support the SET_CD_SPEED command. */ - { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT }, - /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ - { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD | - IDE_AFLAG_PRE_ATAPI12, }, - /* Vertos 300, some versions of this drive like to talk BCD. */ - { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, }, - /* Vertos 600 ESD. */ - { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, }, - /* - * Sanyo 3 CD changer uses a non-standard command for CD changing - * (by default standard ATAPI support for CD changers is used). - */ - { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD }, - { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD }, - { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD }, - /* Stingray 8X CD-ROM. */ - { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 }, - /* - * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length - * mode sense page capabilities size, but older drives break. - */ - { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, - { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, - /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ - { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS }, - /* - * Some drives used by Apple don't advertise audio play - * but they do support reading TOC & audio datas. - */ - { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, - { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, - { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, - { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, - { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, - { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, - { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE }, - { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE }, - { NULL, NULL, 0 } -}; - -static unsigned int ide_cd_flags(u16 *id) -{ - const struct cd_list_entry *cle = ide_cd_quirks_list; - - while (cle->id_model) { - if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 && - (cle->id_firmware == NULL || - strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware))) - return cle->cd_flags; - cle++; - } - - return 0; -} - -static int ide_cdrom_setup(ide_drive_t *drive) -{ - struct cdrom_info *cd = drive->driver_data; - struct cdrom_device_info *cdi = &cd->devinfo; - struct request_queue *q = drive->queue; - u16 *id = drive->id; - char *fw_rev = (char *)&id[ATA_ID_FW_REV]; - int nslots; - - ide_debug_log(IDE_DBG_PROBE, "enter"); - - drive->prep_rq = ide_cdrom_prep_rq; - blk_queue_dma_alignment(q, 31); - blk_queue_update_dma_pad(q, 15); - - drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; - drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id); - - if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) && - fw_rev[4] == '1' && fw_rev[6] <= '2') - drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD | - IDE_AFLAG_TOCADDR_AS_BCD); - else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) && - fw_rev[4] == '1' && fw_rev[6] <= '2') - drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD; - else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD) - /* 3 => use CD in slot 0 */ - cdi->sanyo_slot = 3; - - nslots = ide_cdrom_probe_capabilities(drive); - - blk_queue_logical_block_size(q, CD_FRAMESIZE); - - if (ide_cdrom_register(drive, nslots)) { - printk(KERN_ERR PFX "%s: %s failed to register device with the" - " cdrom driver.\n", drive->name, __func__); - cd->devinfo.handle = NULL; - return 1; - } - - ide_proc_register_driver(drive, cd->driver); - return 0; -} - -static void ide_cd_remove(ide_drive_t *drive) -{ - struct cdrom_info *info = drive->driver_data; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - ide_proc_unregister_driver(drive, info->driver); - device_del(&info->dev); - del_gendisk(info->disk); - - mutex_lock(&idecd_ref_mutex); - put_device(&info->dev); - mutex_unlock(&idecd_ref_mutex); -} - -static void ide_cd_release(struct device *dev) -{ - struct cdrom_info *info = to_ide_drv(dev, cdrom_info); - struct cdrom_device_info *devinfo = &info->devinfo; - ide_drive_t *drive = info->drive; - struct gendisk *g = info->disk; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - kfree(info->toc); - if (devinfo->handle == drive) - unregister_cdrom(devinfo); - drive->driver_data = NULL; - drive->prep_rq = NULL; - g->private_data = NULL; - put_disk(g); - kfree(info); -} - -static int ide_cd_probe(ide_drive_t *); - -static struct ide_driver ide_cdrom_driver = { - .gen_driver = { - .owner = THIS_MODULE, - .name = "ide-cdrom", - .bus = &ide_bus_type, - }, - .probe = ide_cd_probe, - .remove = ide_cd_remove, - .version = IDECD_VERSION, - .do_request = ide_cd_do_request, -#ifdef CONFIG_IDE_PROC_FS - .proc_entries = ide_cd_proc_entries, - .proc_devsets = ide_cd_proc_devsets, -#endif -}; - -static int idecd_open(struct block_device *bdev, fmode_t mode) -{ - struct cdrom_info *info; - int rc = -ENXIO; - - if (bdev_check_media_change(bdev)) { - info = ide_drv_g(bdev->bd_disk, cdrom_info); - - ide_cd_read_toc(info->drive); - } - - mutex_lock(&ide_cd_mutex); - info = ide_cd_get(bdev->bd_disk); - if (!info) - goto out; - - rc = cdrom_open(&info->devinfo, bdev, mode); - if (rc < 0) - ide_cd_put(info); -out: - mutex_unlock(&ide_cd_mutex); - return rc; -} - -static void idecd_release(struct gendisk *disk, fmode_t mode) -{ - struct cdrom_info *info = ide_drv_g(disk, cdrom_info); - - mutex_lock(&ide_cd_mutex); - cdrom_release(&info->devinfo, mode); - - ide_cd_put(info); - mutex_unlock(&ide_cd_mutex); -} - -static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) -{ - struct packet_command cgc; - char buffer[16]; - int stat; - char spindown; - - if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) - return -EFAULT; - - init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); - - stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); - if (stat) - return stat; - - buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); - return cdrom_mode_select(cdi, &cgc); -} - -static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) -{ - struct packet_command cgc; - char buffer[16]; - int stat; - char spindown; - - init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); - - stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); - if (stat) - return stat; - - spindown = buffer[11] & 0x0f; - if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) - return -EFAULT; - return 0; -} - -static int idecd_locked_ioctl(struct block_device *bdev, fmode_t mode, - unsigned int cmd, unsigned long arg) -{ - struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info); - int err; - - switch (cmd) { - case CDROMSETSPINDOWN: - return idecd_set_spindown(&info->devinfo, arg); - case CDROMGETSPINDOWN: - return idecd_get_spindown(&info->devinfo, arg); - default: - break; - } - - err = generic_ide_ioctl(info->drive, bdev, cmd, arg); - if (err == -EINVAL) - err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg); - - return err; -} - -static int idecd_ioctl(struct block_device *bdev, fmode_t mode, - unsigned int cmd, unsigned long arg) -{ - int ret; - - mutex_lock(&ide_cd_mutex); - ret = idecd_locked_ioctl(bdev, mode, cmd, arg); - mutex_unlock(&ide_cd_mutex); - - return ret; -} - -static int idecd_locked_compat_ioctl(struct block_device *bdev, fmode_t mode, - unsigned int cmd, unsigned long arg) -{ - struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info); - void __user *argp = compat_ptr(arg); - int err; - - switch (cmd) { - case CDROMSETSPINDOWN: - return idecd_set_spindown(&info->devinfo, (unsigned long)argp); - case CDROMGETSPINDOWN: - return idecd_get_spindown(&info->devinfo, (unsigned long)argp); - default: - break; - } - - err = generic_ide_ioctl(info->drive, bdev, cmd, arg); - if (err == -EINVAL) - err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, - (unsigned long)argp); - - return err; -} - -static int idecd_compat_ioctl(struct block_device *bdev, fmode_t mode, - unsigned int cmd, unsigned long arg) -{ - int ret; - - mutex_lock(&ide_cd_mutex); - ret = idecd_locked_compat_ioctl(bdev, mode, cmd, arg); - mutex_unlock(&ide_cd_mutex); - - return ret; -} - -static unsigned int idecd_check_events(struct gendisk *disk, - unsigned int clearing) -{ - struct cdrom_info *info = ide_drv_g(disk, cdrom_info); - return cdrom_check_events(&info->devinfo, clearing); -} - -static const struct block_device_operations idecd_ops = { - .owner = THIS_MODULE, - .open = idecd_open, - .release = idecd_release, - .ioctl = idecd_ioctl, - .compat_ioctl = IS_ENABLED(CONFIG_COMPAT) ? - idecd_compat_ioctl : NULL, - .check_events = idecd_check_events, -}; - -/* module options */ -static unsigned long debug_mask; -module_param(debug_mask, ulong, 0644); - -MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); - -static int ide_cd_probe(ide_drive_t *drive) -{ - struct cdrom_info *info; - struct gendisk *g; - - ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x", - drive->driver_req, drive->media); - - if (!strstr("ide-cdrom", drive->driver_req)) - goto failed; - - if (drive->media != ide_cdrom && drive->media != ide_optical) - goto failed; - - drive->debug_mask = debug_mask; - drive->irq_handler = cdrom_newpc_intr; - - info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); - if (info == NULL) { - printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n", - drive->name); - goto failed; - } - - g = alloc_disk(1 << PARTN_BITS); - if (!g) - goto out_free_cd; - - ide_init_disk(g, drive); - - info->dev.parent = &drive->gendev; - info->dev.release = ide_cd_release; - dev_set_name(&info->dev, "%s", dev_name(&drive->gendev)); - - if (device_register(&info->dev)) - goto out_free_disk; - - info->drive = drive; - info->driver = &ide_cdrom_driver; - info->disk = g; - - g->private_data = &info->driver; - - drive->driver_data = info; - - g->minors = 1; - g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; - if (ide_cdrom_setup(drive)) { - put_device(&info->dev); - goto failed; - } - - ide_cd_read_toc(drive); - g->fops = &idecd_ops; - g->flags |= GENHD_FL_REMOVABLE | GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE; - g->events = DISK_EVENT_MEDIA_CHANGE; - device_add_disk(&drive->gendev, g, NULL); - return 0; - -out_free_disk: - put_disk(g); -out_free_cd: - kfree(info); -failed: - return -ENODEV; -} - -static void __exit ide_cdrom_exit(void) -{ - driver_unregister(&ide_cdrom_driver.gen_driver); -} - -static int __init ide_cdrom_init(void) -{ - printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n"); - return driver_register(&ide_cdrom_driver.gen_driver); -} - -MODULE_ALIAS("ide:*m-cdrom*"); -MODULE_ALIAS("ide-cd"); -module_init(ide_cdrom_init); -module_exit(ide_cdrom_exit); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/ide-cd.h b/drivers/ide/ide-cd.h deleted file mode 100644 index a69dc7f61c4d..000000000000 --- a/drivers/ide/ide-cd.h +++ /dev/null @@ -1,123 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (C) 1996-98 Erik Andersen - * Copyright (C) 1998-2000 Jens Axboe - */ -#ifndef _IDE_CD_H -#define _IDE_CD_H - -#include <linux/cdrom.h> -#include <asm/byteorder.h> - -#define IDECD_DEBUG_LOG 0 - -#if IDECD_DEBUG_LOG -#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, ## args) -#else -#define ide_debug_log(lvl, fmt, args...) do {} while (0) -#endif - -#define ATAPI_WAIT_WRITE_BUSY (10 * HZ) - -/************************************************************************/ - -#define SECTORS_PER_FRAME (CD_FRAMESIZE >> SECTOR_SHIFT) -#define SECTOR_BUFFER_SIZE (CD_FRAMESIZE * 32) - -/* Capabilities Page size including 8 bytes of Mode Page Header */ -#define ATAPI_CAPABILITIES_PAGE_SIZE (8 + 20) -#define ATAPI_CAPABILITIES_PAGE_PAD_SIZE 4 - -/* Structure of a MSF cdrom address. */ -struct atapi_msf { - u8 reserved; - u8 minute; - u8 second; - u8 frame; -}; - -/* Space to hold the disk TOC. */ -#define MAX_TRACKS 99 -struct atapi_toc_header { - unsigned short toc_length; - u8 first_track; - u8 last_track; -}; - -struct atapi_toc_entry { - u8 reserved1; -#if defined(__BIG_ENDIAN_BITFIELD) - u8 adr : 4; - u8 control : 4; -#elif defined(__LITTLE_ENDIAN_BITFIELD) - u8 control : 4; - u8 adr : 4; -#else -#error "Please fix <asm/byteorder.h>" -#endif - u8 track; - u8 reserved2; - union { - unsigned lba; - struct atapi_msf msf; - } addr; -}; - -struct atapi_toc { - int last_session_lba; - int xa_flag; - unsigned long capacity; - struct atapi_toc_header hdr; - struct atapi_toc_entry ent[MAX_TRACKS+1]; - /* One extra for the leadout. */ -}; - -/* Extra per-device info for cdrom drives. */ -struct cdrom_info { - ide_drive_t *drive; - struct ide_driver *driver; - struct gendisk *disk; - struct device dev; - - /* Buffer for table of contents. NULL if we haven't allocated - a TOC buffer for this device yet. */ - - struct atapi_toc *toc; - - u8 max_speed; /* Max speed of the drive. */ - u8 current_speed; /* Current speed of the drive. */ - - /* Per-device info needed by cdrom.c generic driver. */ - struct cdrom_device_info devinfo; - - unsigned long write_timeout; -}; - -/* ide-cd_verbose.c */ -void ide_cd_log_error(const char *, struct request *, struct request_sense *); - -/* ide-cd.c functions used by ide-cd_ioctl.c */ -int ide_cd_queue_pc(ide_drive_t *, const unsigned char *, int, void *, - unsigned *, struct scsi_sense_hdr *, int, req_flags_t); -int ide_cd_read_toc(ide_drive_t *); -int ide_cdrom_get_capabilities(ide_drive_t *, u8 *); -void ide_cdrom_update_speed(ide_drive_t *, u8 *); -int cdrom_check_status(ide_drive_t *, struct scsi_sense_hdr *); - -/* ide-cd_ioctl.c */ -int ide_cdrom_open_real(struct cdrom_device_info *, int); -void ide_cdrom_release_real(struct cdrom_device_info *); -int ide_cdrom_drive_status(struct cdrom_device_info *, int); -unsigned int ide_cdrom_check_events_real(struct cdrom_device_info *, - unsigned int clearing, int slot_nr); -int ide_cdrom_tray_move(struct cdrom_device_info *, int); -int ide_cdrom_lock_door(struct cdrom_device_info *, int); -int ide_cdrom_select_speed(struct cdrom_device_info *, int); -int ide_cdrom_get_last_session(struct cdrom_device_info *, - struct cdrom_multisession *); -int ide_cdrom_get_mcn(struct cdrom_device_info *, struct cdrom_mcn *); -int ide_cdrom_reset(struct cdrom_device_info *cdi); -int ide_cdrom_audio_ioctl(struct cdrom_device_info *, unsigned int, void *); -int ide_cdrom_packet(struct cdrom_device_info *, struct packet_command *); - -#endif /* _IDE_CD_H */ diff --git a/drivers/ide/ide-cd_ioctl.c b/drivers/ide/ide-cd_ioctl.c deleted file mode 100644 index 011eab9c69b7..000000000000 --- a/drivers/ide/ide-cd_ioctl.c +++ /dev/null @@ -1,468 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * cdrom.c IOCTLs handling for ide-cd driver. - * - * Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov> - * Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org> - * Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de> - */ - -#include <linux/kernel.h> -#include <linux/cdrom.h> -#include <linux/gfp.h> -#include <linux/ide.h> -#include <scsi/scsi.h> - -#include "ide-cd.h" - -/**************************************************************************** - * Other driver requests (open, close, check media change). - */ -int ide_cdrom_open_real(struct cdrom_device_info *cdi, int purpose) -{ - return 0; -} - -/* - * Close down the device. Invalidate all cached blocks. - */ -void ide_cdrom_release_real(struct cdrom_device_info *cdi) -{ - ide_drive_t *drive = cdi->handle; - - if (!cdi->use_count) - drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID; -} - -/* - * add logic to try GET_EVENT command first to check for media and tray - * status. this should be supported by newer cd-r/w and all DVD etc - * drives - */ -int ide_cdrom_drive_status(struct cdrom_device_info *cdi, int slot_nr) -{ - ide_drive_t *drive = cdi->handle; - struct media_event_desc med; - struct scsi_sense_hdr sshdr; - int stat; - - if (slot_nr != CDSL_CURRENT) - return -EINVAL; - - stat = cdrom_check_status(drive, &sshdr); - if (!stat || sshdr.sense_key == UNIT_ATTENTION) - return CDS_DISC_OK; - - if (!cdrom_get_media_event(cdi, &med)) { - if (med.media_present) - return CDS_DISC_OK; - else if (med.door_open) - return CDS_TRAY_OPEN; - else - return CDS_NO_DISC; - } - - if (sshdr.sense_key == NOT_READY && sshdr.asc == 0x04 - && sshdr.ascq == 0x04) - return CDS_DISC_OK; - - /* - * If not using Mt Fuji extended media tray reports, - * just return TRAY_OPEN since ATAPI doesn't provide - * any other way to detect this... - */ - if (sshdr.sense_key == NOT_READY) { - if (sshdr.asc == 0x3a && sshdr.ascq == 1) - return CDS_NO_DISC; - else - return CDS_TRAY_OPEN; - } - return CDS_DRIVE_NOT_READY; -} - -/* - * ide-cd always generates media changed event if media is missing, which - * makes it impossible to use for proper event reporting, so - * DISK_EVENT_FLAG_UEVENT is cleared in disk->event_flags - * and the following function is used only to trigger - * revalidation and never propagated to userland. - */ -unsigned int ide_cdrom_check_events_real(struct cdrom_device_info *cdi, - unsigned int clearing, int slot_nr) -{ - ide_drive_t *drive = cdi->handle; - int retval; - - if (slot_nr == CDSL_CURRENT) { - (void) cdrom_check_status(drive, NULL); - retval = (drive->dev_flags & IDE_DFLAG_MEDIA_CHANGED) ? 1 : 0; - drive->dev_flags &= ~IDE_DFLAG_MEDIA_CHANGED; - return retval ? DISK_EVENT_MEDIA_CHANGE : 0; - } else { - return 0; - } -} - -/* Eject the disk if EJECTFLAG is 0. - If EJECTFLAG is 1, try to reload the disk. */ -static -int cdrom_eject(ide_drive_t *drive, int ejectflag) -{ - struct cdrom_info *cd = drive->driver_data; - struct cdrom_device_info *cdi = &cd->devinfo; - char loej = 0x02; - unsigned char cmd[BLK_MAX_CDB]; - - if ((drive->atapi_flags & IDE_AFLAG_NO_EJECT) && !ejectflag) - return -EDRIVE_CANT_DO_THIS; - - /* reload fails on some drives, if the tray is locked */ - if ((drive->atapi_flags & IDE_AFLAG_DOOR_LOCKED) && ejectflag) - return 0; - - /* only tell drive to close tray if open, if it can do that */ - if (ejectflag && (cdi->mask & CDC_CLOSE_TRAY)) - loej = 0; - - memset(cmd, 0, BLK_MAX_CDB); - - cmd[0] = GPCMD_START_STOP_UNIT; - cmd[4] = loej | (ejectflag != 0); - - return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, NULL, 0, 0); -} - -/* Lock the door if LOCKFLAG is nonzero; unlock it otherwise. */ -static -int ide_cd_lockdoor(ide_drive_t *drive, int lockflag) -{ - struct scsi_sense_hdr sshdr; - int stat; - - /* If the drive cannot lock the door, just pretend. */ - if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) == 0) { - stat = 0; - } else { - unsigned char cmd[BLK_MAX_CDB]; - - memset(cmd, 0, BLK_MAX_CDB); - - cmd[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL; - cmd[4] = lockflag ? 1 : 0; - - stat = ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, - &sshdr, 0, 0); - } - - /* If we got an illegal field error, the drive - probably cannot lock the door. */ - if (stat != 0 && - sshdr.sense_key == ILLEGAL_REQUEST && - (sshdr.asc == 0x24 || sshdr.asc == 0x20)) { - printk(KERN_ERR "%s: door locking not supported\n", - drive->name); - drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; - stat = 0; - } - - /* no medium, that's alright. */ - if (stat != 0 && sshdr.sense_key == NOT_READY && sshdr.asc == 0x3a) - stat = 0; - - if (stat == 0) { - if (lockflag) - drive->atapi_flags |= IDE_AFLAG_DOOR_LOCKED; - else - drive->atapi_flags &= ~IDE_AFLAG_DOOR_LOCKED; - } - - return stat; -} - -int ide_cdrom_tray_move(struct cdrom_device_info *cdi, int position) -{ - ide_drive_t *drive = cdi->handle; - - if (position) { - int stat = ide_cd_lockdoor(drive, 0); - - if (stat) - return stat; - } - - return cdrom_eject(drive, !position); -} - -int ide_cdrom_lock_door(struct cdrom_device_info *cdi, int lock) -{ - ide_drive_t *drive = cdi->handle; - - return ide_cd_lockdoor(drive, lock); -} - -/* - * ATAPI devices are free to select the speed you request or any slower - * rate. :-( Requesting too fast a speed will _not_ produce an error. - */ -int ide_cdrom_select_speed(struct cdrom_device_info *cdi, int speed) -{ - ide_drive_t *drive = cdi->handle; - struct cdrom_info *cd = drive->driver_data; - u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; - int stat; - unsigned char cmd[BLK_MAX_CDB]; - - if (speed == 0) - speed = 0xffff; /* set to max */ - else - speed *= 177; /* Nx to kbytes/s */ - - memset(cmd, 0, BLK_MAX_CDB); - - cmd[0] = GPCMD_SET_SPEED; - /* Read Drive speed in kbytes/second MSB/LSB */ - cmd[2] = (speed >> 8) & 0xff; - cmd[3] = speed & 0xff; - if ((cdi->mask & (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) != - (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) { - /* Write Drive speed in kbytes/second MSB/LSB */ - cmd[4] = (speed >> 8) & 0xff; - cmd[5] = speed & 0xff; - } - - stat = ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, NULL, 0, 0); - - if (!ide_cdrom_get_capabilities(drive, buf)) { - ide_cdrom_update_speed(drive, buf); - cdi->speed = cd->current_speed; - } - - return 0; -} - -int ide_cdrom_get_last_session(struct cdrom_device_info *cdi, - struct cdrom_multisession *ms_info) -{ - struct atapi_toc *toc; - ide_drive_t *drive = cdi->handle; - struct cdrom_info *info = drive->driver_data; - int ret; - - if ((drive->atapi_flags & IDE_AFLAG_TOC_VALID) == 0 || !info->toc) { - ret = ide_cd_read_toc(drive); - if (ret) - return ret; - } - - toc = info->toc; - ms_info->addr.lba = toc->last_session_lba; - ms_info->xa_flag = toc->xa_flag; - - return 0; -} - -int ide_cdrom_get_mcn(struct cdrom_device_info *cdi, - struct cdrom_mcn *mcn_info) -{ - ide_drive_t *drive = cdi->handle; - int stat, mcnlen; - char buf[24]; - unsigned char cmd[BLK_MAX_CDB]; - unsigned len = sizeof(buf); - - memset(cmd, 0, BLK_MAX_CDB); - - cmd[0] = GPCMD_READ_SUBCHANNEL; - cmd[1] = 2; /* MSF addressing */ - cmd[2] = 0x40; /* request subQ data */ - cmd[3] = 2; /* format */ - cmd[8] = len; - - stat = ide_cd_queue_pc(drive, cmd, 0, buf, &len, NULL, 0, 0); - if (stat) - return stat; - - mcnlen = sizeof(mcn_info->medium_catalog_number) - 1; - memcpy(mcn_info->medium_catalog_number, buf + 9, mcnlen); - mcn_info->medium_catalog_number[mcnlen] = '\0'; - - return 0; -} - -int ide_cdrom_reset(struct cdrom_device_info *cdi) -{ - ide_drive_t *drive = cdi->handle; - struct cdrom_info *cd = drive->driver_data; - struct request *rq; - int ret; - - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); - ide_req(rq)->type = ATA_PRIV_MISC; - rq->rq_flags = RQF_QUIET; - blk_execute_rq(cd->disk, rq, 0); - ret = scsi_req(rq)->result ? -EIO : 0; - blk_put_request(rq); - /* - * A reset will unlock the door. If it was previously locked, - * lock it again. - */ - if (drive->atapi_flags & IDE_AFLAG_DOOR_LOCKED) - (void)ide_cd_lockdoor(drive, 1); - - return ret; -} - -static int ide_cd_get_toc_entry(ide_drive_t *drive, int track, - struct atapi_toc_entry **ent) -{ - struct cdrom_info *info = drive->driver_data; - struct atapi_toc *toc = info->toc; - int ntracks; - - /* - * don't serve cached data, if the toc isn't valid - */ - if ((drive->atapi_flags & IDE_AFLAG_TOC_VALID) == 0) - return -EINVAL; - - /* Check validity of requested track number. */ - ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; - - if (toc->hdr.first_track == CDROM_LEADOUT) - ntracks = 0; - - if (track == CDROM_LEADOUT) - *ent = &toc->ent[ntracks]; - else if (track < toc->hdr.first_track || track > toc->hdr.last_track) - return -EINVAL; - else - *ent = &toc->ent[track - toc->hdr.first_track]; - - return 0; -} - -static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg) -{ - struct cdrom_ti *ti = arg; - struct atapi_toc_entry *first_toc, *last_toc; - unsigned long lba_start, lba_end; - int stat; - unsigned char cmd[BLK_MAX_CDB]; - - stat = ide_cd_get_toc_entry(drive, ti->cdti_trk0, &first_toc); - if (stat) - return stat; - - stat = ide_cd_get_toc_entry(drive, ti->cdti_trk1, &last_toc); - if (stat) - return stat; - - if (ti->cdti_trk1 != CDROM_LEADOUT) - ++last_toc; - lba_start = first_toc->addr.lba; - lba_end = last_toc->addr.lba; - - if (lba_end <= lba_start) - return -EINVAL; - - memset(cmd, 0, BLK_MAX_CDB); - - cmd[0] = GPCMD_PLAY_AUDIO_MSF; - lba_to_msf(lba_start, &cmd[3], &cmd[4], &cmd[5]); - lba_to_msf(lba_end - 1, &cmd[6], &cmd[7], &cmd[8]); - - return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, NULL, 0, 0); -} - -static int ide_cd_read_tochdr(ide_drive_t *drive, void *arg) -{ - struct cdrom_info *cd = drive->driver_data; - struct cdrom_tochdr *tochdr = arg; - struct atapi_toc *toc; - int stat; - - /* Make sure our saved TOC is valid. */ - stat = ide_cd_read_toc(drive); - if (stat) - return stat; - - toc = cd->toc; - tochdr->cdth_trk0 = toc->hdr.first_track; - tochdr->cdth_trk1 = toc->hdr.last_track; - - return 0; -} - -static int ide_cd_read_tocentry(ide_drive_t *drive, void *arg) -{ - struct cdrom_tocentry *tocentry = arg; - struct atapi_toc_entry *toce; - int stat; - - stat = ide_cd_get_toc_entry(drive, tocentry->cdte_track, &toce); - if (stat) - return stat; - - tocentry->cdte_ctrl = toce->control; - tocentry->cdte_adr = toce->adr; - if (tocentry->cdte_format == CDROM_MSF) { - lba_to_msf(toce->addr.lba, - &tocentry->cdte_addr.msf.minute, - &tocentry->cdte_addr.msf.second, - &tocentry->cdte_addr.msf.frame); - } else - tocentry->cdte_addr.lba = toce->addr.lba; - - return 0; -} - -int ide_cdrom_audio_ioctl(struct cdrom_device_info *cdi, - unsigned int cmd, void *arg) -{ - ide_drive_t *drive = cdi->handle; - - switch (cmd) { - /* - * emulate PLAY_AUDIO_TI command with PLAY_AUDIO_10, since - * atapi doesn't support it - */ - case CDROMPLAYTRKIND: - return ide_cd_fake_play_trkind(drive, arg); - case CDROMREADTOCHDR: - return ide_cd_read_tochdr(drive, arg); - case CDROMREADTOCENTRY: - return ide_cd_read_tocentry(drive, arg); - default: - return -EINVAL; - } -} - -/* the generic packet interface to cdrom.c */ -int ide_cdrom_packet(struct cdrom_device_info *cdi, - struct packet_command *cgc) -{ - ide_drive_t *drive = cdi->handle; - req_flags_t flags = 0; - unsigned len = cgc->buflen; - - if (cgc->timeout <= 0) - cgc->timeout = ATAPI_WAIT_PC; - - /* here we queue the commands from the uniform CD-ROM - layer. the packet must be complete, as we do not - touch it at all. */ - - if (cgc->sshdr) - memset(cgc->sshdr, 0, sizeof(*cgc->sshdr)); - - if (cgc->quiet) - flags |= RQF_QUIET; - - cgc->stat = ide_cd_queue_pc(drive, cgc->cmd, - cgc->data_direction == CGC_DATA_WRITE, - cgc->buffer, &len, - cgc->sshdr, cgc->timeout, flags); - if (!cgc->stat) - cgc->buflen -= len; - return cgc->stat; -} diff --git a/drivers/ide/ide-cd_verbose.c b/drivers/ide/ide-cd_verbose.c deleted file mode 100644 index 5ecd5b2f03a3..000000000000 --- a/drivers/ide/ide-cd_verbose.c +++ /dev/null @@ -1,362 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Verbose error logging for ATAPI CD/DVD devices. - * - * Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov> - * Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org> - * Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de> - */ - -#include <linux/kernel.h> -#include <linux/blkdev.h> -#include <linux/cdrom.h> -#include <linux/ide.h> -#include <scsi/scsi.h> -#include "ide-cd.h" - -#ifndef CONFIG_BLK_DEV_IDECD_VERBOSE_ERRORS -void ide_cd_log_error(const char *name, struct request *failed_command, - struct request_sense *sense) -{ - /* Suppress printing unit attention and `in progress of becoming ready' - errors when we're not being verbose. */ - if (sense->sense_key == UNIT_ATTENTION || - (sense->sense_key == NOT_READY && (sense->asc == 4 || - sense->asc == 0x3a))) - return; - - printk(KERN_ERR "%s: error code: 0x%02x sense_key: 0x%02x " - "asc: 0x%02x ascq: 0x%02x\n", - name, sense->error_code, sense->sense_key, - sense->asc, sense->ascq); -} -#else -/* The generic packet command opcodes for CD/DVD Logical Units, - * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */ -static const struct { - unsigned short packet_command; - const char * const text; -} packet_command_texts[] = { - { GPCMD_TEST_UNIT_READY, "Test Unit Ready" }, - { GPCMD_REQUEST_SENSE, "Request Sense" }, - { GPCMD_FORMAT_UNIT, "Format Unit" }, - { GPCMD_INQUIRY, "Inquiry" }, - { GPCMD_START_STOP_UNIT, "Start/Stop Unit" }, - { GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL, "Prevent/Allow Medium Removal" }, - { GPCMD_READ_FORMAT_CAPACITIES, "Read Format Capacities" }, - { GPCMD_READ_CDVD_CAPACITY, "Read Cd/Dvd Capacity" }, - { GPCMD_READ_10, "Read 10" }, - { GPCMD_WRITE_10, "Write 10" }, - { GPCMD_SEEK, "Seek" }, - { GPCMD_WRITE_AND_VERIFY_10, "Write and Verify 10" }, - { GPCMD_VERIFY_10, "Verify 10" }, - { GPCMD_FLUSH_CACHE, "Flush Cache" }, - { GPCMD_READ_SUBCHANNEL, "Read Subchannel" }, - { GPCMD_READ_TOC_PMA_ATIP, "Read Table of Contents" }, - { GPCMD_READ_HEADER, "Read Header" }, - { GPCMD_PLAY_AUDIO_10, "Play Audio 10" }, - { GPCMD_GET_CONFIGURATION, "Get Configuration" }, - { GPCMD_PLAY_AUDIO_MSF, "Play Audio MSF" }, - { GPCMD_PLAYAUDIO_TI, "Play Audio TrackIndex" }, - { GPCMD_GET_EVENT_STATUS_NOTIFICATION, - "Get Event Status Notification" }, - { GPCMD_PAUSE_RESUME, "Pause/Resume" }, - { GPCMD_STOP_PLAY_SCAN, "Stop Play/Scan" }, - { GPCMD_READ_DISC_INFO, "Read Disc Info" }, - { GPCMD_READ_TRACK_RZONE_INFO, "Read Track Rzone Info" }, - { GPCMD_RESERVE_RZONE_TRACK, "Reserve Rzone Track" }, - { GPCMD_SEND_OPC, "Send OPC" }, - { GPCMD_MODE_SELECT_10, "Mode Select 10" }, - { GPCMD_REPAIR_RZONE_TRACK, "Repair Rzone Track" }, - { GPCMD_MODE_SENSE_10, "Mode Sense 10" }, - { GPCMD_CLOSE_TRACK, "Close Track" }, - { GPCMD_BLANK, "Blank" }, - { GPCMD_SEND_EVENT, "Send Event" }, - { GPCMD_SEND_KEY, "Send Key" }, - { GPCMD_REPORT_KEY, "Report Key" }, - { GPCMD_LOAD_UNLOAD, "Load/Unload" }, - { GPCMD_SET_READ_AHEAD, "Set Read-ahead" }, - { GPCMD_READ_12, "Read 12" }, - { GPCMD_GET_PERFORMANCE, "Get Performance" }, - { GPCMD_SEND_DVD_STRUCTURE, "Send DVD Structure" }, - { GPCMD_READ_DVD_STRUCTURE, "Read DVD Structure" }, - { GPCMD_SET_STREAMING, "Set Streaming" }, - { GPCMD_READ_CD_MSF, "Read CD MSF" }, - { GPCMD_SCAN, "Scan" }, - { GPCMD_SET_SPEED, "Set Speed" }, - { GPCMD_PLAY_CD, "Play CD" }, - { GPCMD_MECHANISM_STATUS, "Mechanism Status" }, - { GPCMD_READ_CD, "Read CD" }, -}; - -/* From Table 303 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */ -static const char * const sense_key_texts[16] = { - "No sense data", - "Recovered error", - "Not ready", - "Medium error", - "Hardware error", - "Illegal request", - "Unit attention", - "Data protect", - "Blank check", - "(reserved)", - "(reserved)", - "Aborted command", - "(reserved)", - "(reserved)", - "Miscompare", - "(reserved)", -}; - -/* From Table 304 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */ -static const struct { - unsigned long asc_ascq; - const char * const text; -} sense_data_texts[] = { - { 0x000000, "No additional sense information" }, - { 0x000011, "Play operation in progress" }, - { 0x000012, "Play operation paused" }, - { 0x000013, "Play operation successfully completed" }, - { 0x000014, "Play operation stopped due to error" }, - { 0x000015, "No current audio status to return" }, - { 0x010c0a, "Write error - padding blocks added" }, - { 0x011700, "Recovered data with no error correction applied" }, - { 0x011701, "Recovered data with retries" }, - { 0x011702, "Recovered data with positive head offset" }, - { 0x011703, "Recovered data with negative head offset" }, - { 0x011704, "Recovered data with retries and/or CIRC applied" }, - { 0x011705, "Recovered data using previous sector ID" }, - { 0x011800, "Recovered data with error correction applied" }, - { 0x011801, "Recovered data with error correction and retries applied"}, - { 0x011802, "Recovered data - the data was auto-reallocated" }, - { 0x011803, "Recovered data with CIRC" }, - { 0x011804, "Recovered data with L-EC" }, - { 0x015d00, "Failure prediction threshold exceeded" - " - Predicted logical unit failure" }, - { 0x015d01, "Failure prediction threshold exceeded" - " - Predicted media failure" }, - { 0x015dff, "Failure prediction threshold exceeded - False" }, - { 0x017301, "Power calibration area almost full" }, - { 0x020400, "Logical unit not ready - cause not reportable" }, - /* Following is misspelled in ATAPI 2.6, _and_ in Mt. Fuji */ - { 0x020401, "Logical unit not ready" - " - in progress [sic] of becoming ready" }, - { 0x020402, "Logical unit not ready - initializing command required" }, - { 0x020403, "Logical unit not ready - manual intervention required" }, - { 0x020404, "Logical unit not ready - format in progress" }, - { 0x020407, "Logical unit not ready - operation in progress" }, - { 0x020408, "Logical unit not ready - long write in progress" }, - { 0x020600, "No reference position found (media may be upside down)" }, - { 0x023000, "Incompatible medium installed" }, - { 0x023a00, "Medium not present" }, - { 0x025300, "Media load or eject failed" }, - { 0x025700, "Unable to recover table of contents" }, - { 0x030300, "Peripheral device write fault" }, - { 0x030301, "No write current" }, - { 0x030302, "Excessive write errors" }, - { 0x030c00, "Write error" }, - { 0x030c01, "Write error - Recovered with auto reallocation" }, - { 0x030c02, "Write error - auto reallocation failed" }, - { 0x030c03, "Write error - recommend reassignment" }, - { 0x030c04, "Compression check miscompare error" }, - { 0x030c05, "Data expansion occurred during compress" }, - { 0x030c06, "Block not compressible" }, - { 0x030c07, "Write error - recovery needed" }, - { 0x030c08, "Write error - recovery failed" }, - { 0x030c09, "Write error - loss of streaming" }, - { 0x031100, "Unrecovered read error" }, - { 0x031106, "CIRC unrecovered error" }, - { 0x033101, "Format command failed" }, - { 0x033200, "No defect spare location available" }, - { 0x033201, "Defect list update failure" }, - { 0x035100, "Erase failure" }, - { 0x037200, "Session fixation error" }, - { 0x037201, "Session fixation error writin lead-in" }, - { 0x037202, "Session fixation error writin lead-out" }, - { 0x037300, "CD control error" }, - { 0x037302, "Power calibration area is full" }, - { 0x037303, "Power calibration area error" }, - { 0x037304, "Program memory area / RMA update failure" }, - { 0x037305, "Program memory area / RMA is full" }, - { 0x037306, "Program memory area / RMA is (almost) full" }, - { 0x040200, "No seek complete" }, - { 0x040300, "Write fault" }, - { 0x040900, "Track following error" }, - { 0x040901, "Tracking servo failure" }, - { 0x040902, "Focus servo failure" }, - { 0x040903, "Spindle servo failure" }, - { 0x041500, "Random positioning error" }, - { 0x041501, "Mechanical positioning or changer error" }, - { 0x041502, "Positioning error detected by read of medium" }, - { 0x043c00, "Mechanical positioning or changer error" }, - { 0x044000, "Diagnostic failure on component (ASCQ)" }, - { 0x044400, "Internal CD/DVD logical unit failure" }, - { 0x04b600, "Media load mechanism failed" }, - { 0x051a00, "Parameter list length error" }, - { 0x052000, "Invalid command operation code" }, - { 0x052100, "Logical block address out of range" }, - { 0x052102, "Invalid address for write" }, - { 0x052400, "Invalid field in command packet" }, - { 0x052600, "Invalid field in parameter list" }, - { 0x052601, "Parameter not supported" }, - { 0x052602, "Parameter value invalid" }, - { 0x052700, "Write protected media" }, - { 0x052c00, "Command sequence error" }, - { 0x052c03, "Current program area is not empty" }, - { 0x052c04, "Current program area is empty" }, - { 0x053001, "Cannot read medium - unknown format" }, - { 0x053002, "Cannot read medium - incompatible format" }, - { 0x053900, "Saving parameters not supported" }, - { 0x054e00, "Overlapped commands attempted" }, - { 0x055302, "Medium removal prevented" }, - { 0x055500, "System resource failure" }, - { 0x056300, "End of user area encountered on this track" }, - { 0x056400, "Illegal mode for this track or incompatible medium" }, - { 0x056f00, "Copy protection key exchange failure" - " - Authentication failure" }, - { 0x056f01, "Copy protection key exchange failure - Key not present" }, - { 0x056f02, "Copy protection key exchange failure" - " - Key not established" }, - { 0x056f03, "Read of scrambled sector without authentication" }, - { 0x056f04, "Media region code is mismatched to logical unit" }, - { 0x056f05, "Drive region must be permanent" - " / region reset count error" }, - { 0x057203, "Session fixation error - incomplete track in session" }, - { 0x057204, "Empty or partially written reserved track" }, - { 0x057205, "No more RZONE reservations are allowed" }, - { 0x05bf00, "Loss of streaming" }, - { 0x062800, "Not ready to ready transition, medium may have changed" }, - { 0x062900, "Power on, reset or hardware reset occurred" }, - { 0x062a00, "Parameters changed" }, - { 0x062a01, "Mode parameters changed" }, - { 0x062e00, "Insufficient time for operation" }, - { 0x063f00, "Logical unit operating conditions have changed" }, - { 0x063f01, "Microcode has been changed" }, - { 0x065a00, "Operator request or state change input (unspecified)" }, - { 0x065a01, "Operator medium removal request" }, - { 0x0bb900, "Play operation aborted" }, - /* Here we use 0xff for the key (not a valid key) to signify - * that these can have _any_ key value associated with them... */ - { 0xff0401, "Logical unit is in process of becoming ready" }, - { 0xff0400, "Logical unit not ready, cause not reportable" }, - { 0xff0402, "Logical unit not ready, initializing command required" }, - { 0xff0403, "Logical unit not ready, manual intervention required" }, - { 0xff0500, "Logical unit does not respond to selection" }, - { 0xff0800, "Logical unit communication failure" }, - { 0xff0802, "Logical unit communication parity error" }, - { 0xff0801, "Logical unit communication time-out" }, - { 0xff2500, "Logical unit not supported" }, - { 0xff4c00, "Logical unit failed self-configuration" }, - { 0xff3e00, "Logical unit has not self-configured yet" }, -}; - -void ide_cd_log_error(const char *name, struct request *failed_command, - struct request_sense *sense) -{ - int i; - const char *s = "bad sense key!"; - char buf[80]; - - printk(KERN_ERR "ATAPI device %s:\n", name); - if (sense->error_code == 0x70) - printk(KERN_CONT " Error: "); - else if (sense->error_code == 0x71) - printk(" Deferred Error: "); - else if (sense->error_code == 0x7f) - printk(KERN_CONT " Vendor-specific Error: "); - else - printk(KERN_CONT " Unknown Error Type: "); - - if (sense->sense_key < ARRAY_SIZE(sense_key_texts)) - s = sense_key_texts[sense->sense_key]; - - printk(KERN_CONT "%s -- (Sense key=0x%02x)\n", s, sense->sense_key); - - if (sense->asc == 0x40) { - sprintf(buf, "Diagnostic failure on component 0x%02x", - sense->ascq); - s = buf; - } else { - int lo = 0, mid, hi = ARRAY_SIZE(sense_data_texts); - unsigned long key = (sense->sense_key << 16); - - key |= (sense->asc << 8); - if (!(sense->ascq >= 0x80 && sense->ascq <= 0xdd)) - key |= sense->ascq; - s = NULL; - - while (hi > lo) { - mid = (lo + hi) / 2; - if (sense_data_texts[mid].asc_ascq == key || - sense_data_texts[mid].asc_ascq == (0xff0000|key)) { - s = sense_data_texts[mid].text; - break; - } else if (sense_data_texts[mid].asc_ascq > key) - hi = mid; - else - lo = mid + 1; - } - } - - if (s == NULL) { - if (sense->asc > 0x80) - s = "(vendor-specific error)"; - else - s = "(reserved error code)"; - } - - printk(KERN_ERR " %s -- (asc=0x%02x, ascq=0x%02x)\n", - s, sense->asc, sense->ascq); - - if (failed_command != NULL) { - int lo = 0, mid, hi = ARRAY_SIZE(packet_command_texts); - s = NULL; - - while (hi > lo) { - mid = (lo + hi) / 2; - if (packet_command_texts[mid].packet_command == - scsi_req(failed_command)->cmd[0]) { - s = packet_command_texts[mid].text; - break; - } - if (packet_command_texts[mid].packet_command > - scsi_req(failed_command)->cmd[0]) - hi = mid; - else - lo = mid + 1; - } - - printk(KERN_ERR " The failed \"%s\" packet command " - "was: \n \"", s); - for (i = 0; i < BLK_MAX_CDB; i++) - printk(KERN_CONT "%02x ", scsi_req(failed_command)->cmd[i]); - printk(KERN_CONT "\"\n"); - } - - /* The SKSV bit specifies validity of the sense_key_specific - * in the next two commands. It is bit 7 of the first byte. - * In the case of NOT_READY, if SKSV is set the drive can - * give us nice ETA readings. - */ - if (sense->sense_key == NOT_READY && (sense->sks[0] & 0x80)) { - int progress = (sense->sks[1] << 8 | sense->sks[2]) * 100; - - printk(KERN_ERR " Command is %02d%% complete\n", - progress / 0xffff); - } - - if (sense->sense_key == ILLEGAL_REQUEST && - (sense->sks[0] & 0x80) != 0) { - printk(KERN_ERR " Error in %s byte %d", - (sense->sks[0] & 0x40) != 0 ? - "command packet" : "command data", - (sense->sks[1] << 8) + sense->sks[2]); - - if ((sense->sks[0] & 0x40) != 0) - printk(KERN_CONT " bit %d", sense->sks[0] & 0x07); - - printk(KERN_CONT "\n"); - } -} -#endif diff --git a/drivers/ide/ide-cs.c b/drivers/ide/ide-cs.c deleted file mode 100644 index f1e922e2479a..000000000000 --- a/drivers/ide/ide-cs.c +++ /dev/null @@ -1,364 +0,0 @@ -/*====================================================================== - - A driver for PCMCIA IDE/ATA disk cards - - The contents of this file are subject to the Mozilla Public - License Version 1.1 (the "License"); you may not use this file - except in compliance with the License. You may obtain a copy of - the License at http://www.mozilla.org/MPL/ - - Software distributed under the License is distributed on an "AS - IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or - implied. See the License for the specific language governing - rights and limitations under the License. - - The initial developer of the original code is David A. Hinds - <dahinds@users.sourceforge.net>. Portions created by David A. Hinds - are Copyright (C) 1999 David A. Hinds. All Rights Reserved. - - Alternatively, the contents of this file may be used under the - terms of the GNU General Public License version 2 (the "GPL"), in - which case the provisions of the GPL are applicable instead of the - above. If you wish to allow the use of your version of this file - only under the terms of the GPL and not to allow others to use - your version of this file under the MPL, indicate your decision - by deleting the provisions above and replace them with the notice - and other provisions required by the GPL. If you do not delete - the provisions above, a recipient may use your version of this - file under either the MPL or the GPL. - -======================================================================*/ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/ptrace.h> -#include <linux/slab.h> -#include <linux/string.h> -#include <linux/timer.h> -#include <linux/ioport.h> -#include <linux/ide.h> -#include <linux/major.h> -#include <linux/delay.h> -#include <asm/io.h> - -#include <pcmcia/cistpl.h> -#include <pcmcia/ds.h> -#include <pcmcia/cisreg.h> -#include <pcmcia/ciscode.h> - -#define DRV_NAME "ide-cs" - -/*====================================================================*/ - -/* Module parameters */ - -MODULE_AUTHOR("David Hinds <dahinds@users.sourceforge.net>"); -MODULE_DESCRIPTION("PCMCIA ATA/IDE card driver"); -MODULE_LICENSE("Dual MPL/GPL"); - -/*====================================================================*/ - -typedef struct ide_info_t { - struct pcmcia_device *p_dev; - struct ide_host *host; - int ndev; -} ide_info_t; - -static void ide_release(struct pcmcia_device *); -static int ide_config(struct pcmcia_device *); - -static void ide_detach(struct pcmcia_device *p_dev); - -static int ide_probe(struct pcmcia_device *link) -{ - ide_info_t *info; - - dev_dbg(&link->dev, "ide_attach()\n"); - - /* Create new ide device */ - info = kzalloc(sizeof(*info), GFP_KERNEL); - if (!info) - return -ENOMEM; - - info->p_dev = link; - link->priv = info; - - link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO | - CONF_AUTO_SET_VPP | CONF_AUTO_CHECK_VCC; - - return ide_config(link); -} /* ide_attach */ - -static void ide_detach(struct pcmcia_device *link) -{ - ide_info_t *info = link->priv; - - dev_dbg(&link->dev, "ide_detach(0x%p)\n", link); - - ide_release(link); - - kfree(info); -} /* ide_detach */ - -static const struct ide_port_ops idecs_port_ops = { - .quirkproc = ide_undecoded_slave, -}; - -static const struct ide_port_info idecs_port_info = { - .port_ops = &idecs_port_ops, - .host_flags = IDE_HFLAG_NO_DMA, - .irq_flags = IRQF_SHARED, - .chipset = ide_pci, -}; - -static struct ide_host *idecs_register(unsigned long io, unsigned long ctl, - unsigned long irq, struct pcmcia_device *handle) -{ - struct ide_host *host; - ide_hwif_t *hwif; - int i, rc; - struct ide_hw hw, *hws[] = { &hw }; - - if (!request_region(io, 8, DRV_NAME)) { - printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", - DRV_NAME, io, io + 7); - return NULL; - } - - if (!request_region(ctl, 1, DRV_NAME)) { - printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", - DRV_NAME, ctl); - release_region(io, 8); - return NULL; - } - - memset(&hw, 0, sizeof(hw)); - ide_std_init_ports(&hw, io, ctl); - hw.irq = irq; - hw.dev = &handle->dev; - - rc = ide_host_add(&idecs_port_info, hws, 1, &host); - if (rc) - goto out_release; - - hwif = host->ports[0]; - - if (hwif->present) - return host; - - /* retry registration in case device is still spinning up */ - for (i = 0; i < 10; i++) { - msleep(100); - ide_port_scan(hwif); - if (hwif->present) - return host; - } - - return host; - -out_release: - release_region(ctl, 1); - release_region(io, 8); - return NULL; -} - -static int pcmcia_check_one_config(struct pcmcia_device *pdev, void *priv_data) -{ - int *is_kme = priv_data; - - if ((pdev->resource[0]->flags & IO_DATA_PATH_WIDTH) - != IO_DATA_PATH_WIDTH_8) { - pdev->resource[0]->flags &= ~IO_DATA_PATH_WIDTH; - pdev->resource[0]->flags |= IO_DATA_PATH_WIDTH_AUTO; - } - pdev->resource[1]->flags &= ~IO_DATA_PATH_WIDTH; - pdev->resource[1]->flags |= IO_DATA_PATH_WIDTH_8; - - if (pdev->resource[1]->end) { - pdev->resource[0]->end = 8; - pdev->resource[1]->end = (*is_kme) ? 2 : 1; - } else { - if (pdev->resource[0]->end < 16) - return -ENODEV; - } - - return pcmcia_request_io(pdev); -} - -static int ide_config(struct pcmcia_device *link) -{ - ide_info_t *info = link->priv; - int ret = 0, is_kme = 0; - unsigned long io_base, ctl_base; - struct ide_host *host; - - dev_dbg(&link->dev, "ide_config(0x%p)\n", link); - - is_kme = ((link->manf_id == MANFID_KME) && - ((link->card_id == PRODID_KME_KXLC005_A) || - (link->card_id == PRODID_KME_KXLC005_B))); - - if (pcmcia_loop_config(link, pcmcia_check_one_config, &is_kme)) { - link->config_flags &= ~CONF_AUTO_CHECK_VCC; - if (pcmcia_loop_config(link, pcmcia_check_one_config, &is_kme)) - goto failed; /* No suitable config found */ - } - io_base = link->resource[0]->start; - if (link->resource[1]->end) - ctl_base = link->resource[1]->start; - else - ctl_base = link->resource[0]->start + 0x0e; - - if (!link->irq) - goto failed; - - ret = pcmcia_enable_device(link); - if (ret) - goto failed; - - /* disable drive interrupts during IDE probe */ - outb(0x02, ctl_base); - - /* special setup for KXLC005 card */ - if (is_kme) - outb(0x81, ctl_base+1); - - host = idecs_register(io_base, ctl_base, link->irq, link); - if (host == NULL && resource_size(link->resource[0]) == 0x20) { - outb(0x02, ctl_base + 0x10); - host = idecs_register(io_base + 0x10, ctl_base + 0x10, - link->irq, link); - } - - if (host == NULL) - goto failed; - - info->ndev = 1; - info->host = host; - dev_info(&link->dev, "ide-cs: hd%c: Vpp = %d.%d\n", - 'a' + host->ports[0]->index * 2, - link->vpp / 10, link->vpp % 10); - - return 0; - -failed: - ide_release(link); - return -ENODEV; -} /* ide_config */ - -static void ide_release(struct pcmcia_device *link) -{ - ide_info_t *info = link->priv; - struct ide_host *host = info->host; - - dev_dbg(&link->dev, "ide_release(0x%p)\n", link); - - if (info->ndev) { - ide_hwif_t *hwif = host->ports[0]; - unsigned long data_addr, ctl_addr; - - data_addr = hwif->io_ports.data_addr; - ctl_addr = hwif->io_ports.ctl_addr; - - ide_host_remove(host); - info->ndev = 0; - - release_region(ctl_addr, 1); - release_region(data_addr, 8); - } - - pcmcia_disable_device(link); -} /* ide_release */ - - -static const struct pcmcia_device_id ide_ids[] = { - PCMCIA_DEVICE_FUNC_ID(4), - PCMCIA_DEVICE_MANF_CARD(0x0000, 0x0000), /* Corsair */ - PCMCIA_DEVICE_MANF_CARD(0x0007, 0x0000), /* Hitachi */ - PCMCIA_DEVICE_MANF_CARD(0x000a, 0x0000), /* I-O Data CFA */ - PCMCIA_DEVICE_MANF_CARD(0x001c, 0x0001), /* Mitsubishi CFA */ - PCMCIA_DEVICE_MANF_CARD(0x0032, 0x0704), - PCMCIA_DEVICE_MANF_CARD(0x0032, 0x2904), - PCMCIA_DEVICE_MANF_CARD(0x0045, 0x0401), /* SanDisk CFA */ - PCMCIA_DEVICE_MANF_CARD(0x004f, 0x0000), /* Kingston */ - PCMCIA_DEVICE_MANF_CARD(0x0097, 0x1620), /* TI emulated */ - PCMCIA_DEVICE_MANF_CARD(0x0098, 0x0000), /* Toshiba */ - PCMCIA_DEVICE_MANF_CARD(0x00a4, 0x002d), - PCMCIA_DEVICE_MANF_CARD(0x00ce, 0x0000), /* Samsung */ - PCMCIA_DEVICE_MANF_CARD(0x0319, 0x0000), /* Hitachi */ - PCMCIA_DEVICE_MANF_CARD(0x2080, 0x0001), - PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0100), /* Viking CFA */ - PCMCIA_DEVICE_MANF_CARD(0x4e01, 0x0200), /* Lexar, Viking CFA */ - PCMCIA_DEVICE_PROD_ID123("Caravelle", "PSC-IDE ", "PSC000", 0x8c36137c, 0xd0693ab8, 0x2768a9f0), - PCMCIA_DEVICE_PROD_ID123("CDROM", "IDE", "MCD-601p", 0x1b9179ca, 0xede88951, 0x0d902f74), - PCMCIA_DEVICE_PROD_ID123("PCMCIA", "IDE CARD", "F1", 0x281f1c5d, 0x1907960c, 0xf7fde8b9), - PCMCIA_DEVICE_PROD_ID12("ARGOSY", "CD-ROM", 0x78f308dc, 0x66536591), - PCMCIA_DEVICE_PROD_ID12("ARGOSY", "PnPIDE", 0x78f308dc, 0x0c694728), - PCMCIA_DEVICE_PROD_ID12("CNF ", "CD-ROM", 0x46d7db81, 0x66536591), - PCMCIA_DEVICE_PROD_ID12("CNF CD-M", "CD-ROM", 0x7d93b852, 0x66536591), - PCMCIA_DEVICE_PROD_ID12("Creative Technology Ltd.", "PCMCIA CD-ROM Interface Card", 0xff8c8a45, 0xfe8020c4), - PCMCIA_DEVICE_PROD_ID12("Digital Equipment Corporation.", "Digital Mobile Media CD-ROM", 0x17692a66, 0xef1dcbde), - PCMCIA_DEVICE_PROD_ID12("EXP", "CD+GAME", 0x6f58c983, 0x63c13aaf), - PCMCIA_DEVICE_PROD_ID12("EXP ", "CD-ROM", 0x0a5c52fd, 0x66536591), - PCMCIA_DEVICE_PROD_ID12("EXP ", "PnPIDE", 0x0a5c52fd, 0x0c694728), - PCMCIA_DEVICE_PROD_ID12("FREECOM", "PCCARD-IDE", 0x5714cbf7, 0x48e0ab8e), - PCMCIA_DEVICE_PROD_ID12("HITACHI", "FLASH", 0xf4f43949, 0x9eb86aae), - PCMCIA_DEVICE_PROD_ID12("HITACHI", "microdrive", 0xf4f43949, 0xa6d76178), - PCMCIA_DEVICE_PROD_ID12("Hyperstone", "Model1", 0x3d5b9ef5, 0xca6ab420), - PCMCIA_DEVICE_PROD_ID12("IBM", "microdrive", 0xb569a6e5, 0xa6d76178), - PCMCIA_DEVICE_PROD_ID12("IBM", "IBM17JSSFP20", 0xb569a6e5, 0xf2508753), - PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 1GB", 0x2e6d1829, 0x55d5bffb), - PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF CARD 4GB", 0x2e6d1829, 0x531e7d10), - PCMCIA_DEVICE_PROD_ID12("KINGSTON", "CF8GB", 0x2e6d1829, 0xacbe682e), - PCMCIA_DEVICE_PROD_ID12("IO DATA", "CBIDE2 ", 0x547e66dc, 0x8671043b), - PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDE", 0x547e66dc, 0x5c5ab149), - PCMCIA_DEVICE_PROD_ID12("IO DATA", "PCIDEII", 0x547e66dc, 0xb3662674), - PCMCIA_DEVICE_PROD_ID12("LOOKMEET", "CBIDE2 ", 0xe37be2b5, 0x8671043b), - PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF300", 0x7ed2ad87, 0x7e9e78ee), - PCMCIA_DEVICE_PROD_ID12("M-Systems", "CF500", 0x7ed2ad87, 0x7a13045c), - PCMCIA_DEVICE_PROD_ID2("NinjaATA-", 0xebe0bd79), - PCMCIA_DEVICE_PROD_ID12("PCMCIA", "CD-ROM", 0x281f1c5d, 0x66536591), - PCMCIA_DEVICE_PROD_ID12("PCMCIA", "PnPIDE", 0x281f1c5d, 0x0c694728), - PCMCIA_DEVICE_PROD_ID12("SHUTTLE TECHNOLOGY LTD.", "PCCARD-IDE/ATAPI Adapter", 0x4a3f0ba0, 0x322560e1), - PCMCIA_DEVICE_PROD_ID12("SEAGATE", "ST1", 0x87c1b330, 0xe1f30883), - PCMCIA_DEVICE_PROD_ID12("SAMSUNG", "04/05/06", 0x43d74cb4, 0x6a22777d), - PCMCIA_DEVICE_PROD_ID12("SMI VENDOR", "SMI PRODUCT", 0x30896c92, 0x703cc5f6), - PCMCIA_DEVICE_PROD_ID12("TOSHIBA", "MK2001MPL", 0xb4585a1a, 0x3489e003), - PCMCIA_DEVICE_PROD_ID1("TRANSCEND 512M ", 0xd0909443), - PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF45", 0x709b1bf1, 0xf68b6f32), - PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS1GCF80", 0x709b1bf1, 0x2a54d4b1), - PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS2GCF120", 0x709b1bf1, 0x969aa4f2), - PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF120", 0x709b1bf1, 0xf54a91c8), - PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS4GCF133", 0x709b1bf1, 0x7558f133), - PCMCIA_DEVICE_PROD_ID12("TRANSCEND", "TS8GCF133", 0x709b1bf1, 0xb2f89b47), - PCMCIA_DEVICE_PROD_ID12("WIT", "IDE16", 0x244e5994, 0x3e232852), - PCMCIA_DEVICE_PROD_ID12("WEIDA", "TWTTI", 0xcc7cf69c, 0x212bb918), - PCMCIA_DEVICE_PROD_ID1("STI Flash", 0xe4a13209), - PCMCIA_DEVICE_PROD_ID12("STI", "Flash 5.0", 0xbf2df18d, 0x8cb57a0e), - PCMCIA_MFC_DEVICE_PROD_ID12(1, "SanDisk", "ConnectPlus", 0x7a954bd9, 0x74be00c6), - PCMCIA_DEVICE_PROD_ID2("Flash Card", 0x5a362506), - PCMCIA_DEVICE_NULL, -}; -MODULE_DEVICE_TABLE(pcmcia, ide_ids); - -static struct pcmcia_driver ide_cs_driver = { - .owner = THIS_MODULE, - .name = "ide-cs", - .probe = ide_probe, - .remove = ide_detach, - .id_table = ide_ids, -}; - -static int __init init_ide_cs(void) -{ - return pcmcia_register_driver(&ide_cs_driver); -} - -static void __exit exit_ide_cs(void) -{ - pcmcia_unregister_driver(&ide_cs_driver); -} - -late_initcall(init_ide_cs); -module_exit(exit_ide_cs); diff --git a/drivers/ide/ide-devsets.c b/drivers/ide/ide-devsets.c deleted file mode 100644 index ca1d4b3d3878..000000000000 --- a/drivers/ide/ide-devsets.c +++ /dev/null @@ -1,192 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 - -#include <linux/kernel.h> -#include <linux/gfp.h> -#include <linux/ide.h> - -DEFINE_MUTEX(ide_setting_mtx); - -ide_devset_get(io_32bit, io_32bit); - -static int set_io_32bit(ide_drive_t *drive, int arg) -{ - if (drive->dev_flags & IDE_DFLAG_NO_IO_32BIT) - return -EPERM; - - if (arg < 0 || arg > 1 + (SUPPORT_VLB_SYNC << 1)) - return -EINVAL; - - drive->io_32bit = arg; - - return 0; -} - -ide_devset_get_flag(ksettings, IDE_DFLAG_KEEP_SETTINGS); - -static int set_ksettings(ide_drive_t *drive, int arg) -{ - if (arg < 0 || arg > 1) - return -EINVAL; - - if (arg) - drive->dev_flags |= IDE_DFLAG_KEEP_SETTINGS; - else - drive->dev_flags &= ~IDE_DFLAG_KEEP_SETTINGS; - - return 0; -} - -ide_devset_get_flag(using_dma, IDE_DFLAG_USING_DMA); - -static int set_using_dma(ide_drive_t *drive, int arg) -{ -#ifdef CONFIG_BLK_DEV_IDEDMA - int err = -EPERM; - - if (arg < 0 || arg > 1) - return -EINVAL; - - if (ata_id_has_dma(drive->id) == 0) - goto out; - - if (drive->hwif->dma_ops == NULL) - goto out; - - err = 0; - - if (arg) { - if (ide_set_dma(drive)) - err = -EIO; - } else - ide_dma_off(drive); - -out: - return err; -#else - if (arg < 0 || arg > 1) - return -EINVAL; - - return -EPERM; -#endif -} - -/* - * handle HDIO_SET_PIO_MODE ioctl abusers here, eventually it will go away - */ -static int set_pio_mode_abuse(ide_hwif_t *hwif, u8 req_pio) -{ - switch (req_pio) { - case 202: - case 201: - case 200: - case 102: - case 101: - case 100: - return (hwif->host_flags & IDE_HFLAG_ABUSE_DMA_MODES) ? 1 : 0; - case 9: - case 8: - return (hwif->host_flags & IDE_HFLAG_ABUSE_PREFETCH) ? 1 : 0; - case 7: - case 6: - return (hwif->host_flags & IDE_HFLAG_ABUSE_FAST_DEVSEL) ? 1 : 0; - default: - return 0; - } -} - -static int set_pio_mode(ide_drive_t *drive, int arg) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_port_ops *port_ops = hwif->port_ops; - - if (arg < 0 || arg > 255) - return -EINVAL; - - if (port_ops == NULL || port_ops->set_pio_mode == NULL || - (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)) - return -ENOSYS; - - if (set_pio_mode_abuse(drive->hwif, arg)) { - drive->pio_mode = arg + XFER_PIO_0; - - if (arg == 8 || arg == 9) { - unsigned long flags; - - /* take lock for IDE_DFLAG_[NO_]UNMASK/[NO_]IO_32BIT */ - spin_lock_irqsave(&hwif->lock, flags); - port_ops->set_pio_mode(hwif, drive); - spin_unlock_irqrestore(&hwif->lock, flags); - } else - port_ops->set_pio_mode(hwif, drive); - } else { - int keep_dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); - - ide_set_pio(drive, arg); - - if (hwif->host_flags & IDE_HFLAG_SET_PIO_MODE_KEEP_DMA) { - if (keep_dma) - ide_dma_on(drive); - } - } - - return 0; -} - -ide_devset_get_flag(unmaskirq, IDE_DFLAG_UNMASK); - -static int set_unmaskirq(ide_drive_t *drive, int arg) -{ - if (drive->dev_flags & IDE_DFLAG_NO_UNMASK) - return -EPERM; - - if (arg < 0 || arg > 1) - return -EINVAL; - - if (arg) - drive->dev_flags |= IDE_DFLAG_UNMASK; - else - drive->dev_flags &= ~IDE_DFLAG_UNMASK; - - return 0; -} - -ide_ext_devset_rw_sync(io_32bit, io_32bit); -ide_ext_devset_rw_sync(keepsettings, ksettings); -ide_ext_devset_rw_sync(unmaskirq, unmaskirq); -ide_ext_devset_rw_sync(using_dma, using_dma); -__IDE_DEVSET(pio_mode, DS_SYNC, NULL, set_pio_mode); - -int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting, - int arg) -{ - struct request_queue *q = drive->queue; - struct request *rq; - int ret = 0; - - if (!(setting->flags & DS_SYNC)) - return setting->set(drive, arg); - - rq = blk_get_request(q, REQ_OP_DRV_IN, 0); - ide_req(rq)->type = ATA_PRIV_MISC; - scsi_req(rq)->cmd_len = 5; - scsi_req(rq)->cmd[0] = REQ_DEVSET_EXEC; - *(int *)&scsi_req(rq)->cmd[1] = arg; - ide_req(rq)->special = setting->set; - - blk_execute_rq(NULL, rq, 0); - ret = scsi_req(rq)->result; - blk_put_request(rq); - - return ret; -} - -ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq) -{ - int err, (*setfunc)(ide_drive_t *, int) = ide_req(rq)->special; - - err = setfunc(drive, *(int *)&scsi_req(rq)->cmd[1]); - if (err) - scsi_req(rq)->result = err; - ide_complete_rq(drive, 0, blk_rq_bytes(rq)); - return ide_stopped; -} diff --git a/drivers/ide/ide-disk.c b/drivers/ide/ide-disk.c deleted file mode 100644 index 8413731c6259..000000000000 --- a/drivers/ide/ide-disk.c +++ /dev/null @@ -1,795 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (C) 1994-1998 Linus Torvalds & authors (see below) - * Copyright (C) 1998-2002 Linux ATA Development - * Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2003 Red Hat - * Copyright (C) 2003-2005, 2007 Bartlomiej Zolnierkiewicz - */ - -/* - * Mostly written by Mark Lord <mlord@pobox.com> - * and Gadi Oxman <gadio@netvision.net.il> - * and Andre Hedrick <andre@linux-ide.org> - * - * This is the IDE/ATA disk driver, as evolved from hd.c and ide.c. - */ - -#include <linux/types.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/major.h> -#include <linux/errno.h> -#include <linux/genhd.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/mutex.h> -#include <linux/leds.h> -#include <linux/ide.h> - -#include <asm/byteorder.h> -#include <asm/irq.h> -#include <linux/uaccess.h> -#include <asm/io.h> -#include <asm/div64.h> - -#include "ide-disk.h" - -static const u8 ide_rw_cmds[] = { - ATA_CMD_READ_MULTI, - ATA_CMD_WRITE_MULTI, - ATA_CMD_READ_MULTI_EXT, - ATA_CMD_WRITE_MULTI_EXT, - ATA_CMD_PIO_READ, - ATA_CMD_PIO_WRITE, - ATA_CMD_PIO_READ_EXT, - ATA_CMD_PIO_WRITE_EXT, - ATA_CMD_READ, - ATA_CMD_WRITE, - ATA_CMD_READ_EXT, - ATA_CMD_WRITE_EXT, -}; - -static void ide_tf_set_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 dma) -{ - u8 index, lba48, write; - - lba48 = (cmd->tf_flags & IDE_TFLAG_LBA48) ? 2 : 0; - write = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 1 : 0; - - if (dma) { - cmd->protocol = ATA_PROT_DMA; - index = 8; - } else { - cmd->protocol = ATA_PROT_PIO; - if (drive->mult_count) { - cmd->tf_flags |= IDE_TFLAG_MULTI_PIO; - index = 0; - } else - index = 4; - } - - cmd->tf.command = ide_rw_cmds[index + lba48 + write]; -} - -/* - * __ide_do_rw_disk() issues READ and WRITE commands to a disk, - * using LBA if supported, or CHS otherwise, to address sectors. - */ -static ide_startstop_t __ide_do_rw_disk(ide_drive_t *drive, struct request *rq, - sector_t block) -{ - ide_hwif_t *hwif = drive->hwif; - u16 nsectors = (u16)blk_rq_sectors(rq); - u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48); - u8 dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); - struct ide_cmd cmd; - struct ide_taskfile *tf = &cmd.tf; - ide_startstop_t rc; - - if ((hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA) && lba48 && dma) { - if (block + blk_rq_sectors(rq) > 1ULL << 28) - dma = 0; - else - lba48 = 0; - } - - memset(&cmd, 0, sizeof(cmd)); - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - - if (drive->dev_flags & IDE_DFLAG_LBA) { - if (lba48) { - pr_debug("%s: LBA=0x%012llx\n", drive->name, - (unsigned long long)block); - - tf->nsect = nsectors & 0xff; - tf->lbal = (u8) block; - tf->lbam = (u8)(block >> 8); - tf->lbah = (u8)(block >> 16); - tf->device = ATA_LBA; - - tf = &cmd.hob; - tf->nsect = (nsectors >> 8) & 0xff; - tf->lbal = (u8)(block >> 24); - if (sizeof(block) != 4) { - tf->lbam = (u8)((u64)block >> 32); - tf->lbah = (u8)((u64)block >> 40); - } - - cmd.valid.out.hob = IDE_VALID_OUT_HOB; - cmd.valid.in.hob = IDE_VALID_IN_HOB; - cmd.tf_flags |= IDE_TFLAG_LBA48; - } else { - tf->nsect = nsectors & 0xff; - tf->lbal = block; - tf->lbam = block >>= 8; - tf->lbah = block >>= 8; - tf->device = ((block >> 8) & 0xf) | ATA_LBA; - } - } else { - unsigned int sect, head, cyl, track; - - track = (int)block / drive->sect; - sect = (int)block % drive->sect + 1; - head = track % drive->head; - cyl = track / drive->head; - - pr_debug("%s: CHS=%u/%u/%u\n", drive->name, cyl, head, sect); - - tf->nsect = nsectors & 0xff; - tf->lbal = sect; - tf->lbam = cyl; - tf->lbah = cyl >> 8; - tf->device = head; - } - - cmd.tf_flags |= IDE_TFLAG_FS; - - if (rq_data_dir(rq)) - cmd.tf_flags |= IDE_TFLAG_WRITE; - - ide_tf_set_cmd(drive, &cmd, dma); - cmd.rq = rq; - - if (dma == 0) { - ide_init_sg_cmd(&cmd, nsectors << 9); - ide_map_sg(drive, &cmd); - } - - rc = do_rw_taskfile(drive, &cmd); - - if (rc == ide_stopped && dma) { - /* fallback to PIO */ - cmd.tf_flags |= IDE_TFLAG_DMA_PIO_FALLBACK; - ide_tf_set_cmd(drive, &cmd, 0); - ide_init_sg_cmd(&cmd, nsectors << 9); - rc = do_rw_taskfile(drive, &cmd); - } - - return rc; -} - -/* - * 268435455 == 137439 MB or 28bit limit - * 320173056 == 163929 MB or 48bit addressing - * 1073741822 == 549756 MB or 48bit addressing fake drive - */ - -static ide_startstop_t ide_do_rw_disk(ide_drive_t *drive, struct request *rq, - sector_t block) -{ - ide_hwif_t *hwif = drive->hwif; - - BUG_ON(drive->dev_flags & IDE_DFLAG_BLOCKED); - BUG_ON(blk_rq_is_passthrough(rq)); - - ledtrig_disk_activity(rq_data_dir(rq) == WRITE); - - pr_debug("%s: %sing: block=%llu, sectors=%u\n", - drive->name, rq_data_dir(rq) == READ ? "read" : "writ", - (unsigned long long)block, blk_rq_sectors(rq)); - - if (hwif->rw_disk) - hwif->rw_disk(drive, rq); - - return __ide_do_rw_disk(drive, rq, block); -} - -/* - * Queries for true maximum capacity of the drive. - * Returns maximum LBA address (> 0) of the drive, 0 if failed. - */ -static u64 idedisk_read_native_max_address(ide_drive_t *drive, int lba48) -{ - struct ide_cmd cmd; - struct ide_taskfile *tf = &cmd.tf; - u64 addr = 0; - - memset(&cmd, 0, sizeof(cmd)); - if (lba48) - tf->command = ATA_CMD_READ_NATIVE_MAX_EXT; - else - tf->command = ATA_CMD_READ_NATIVE_MAX; - tf->device = ATA_LBA; - - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - if (lba48) { - cmd.valid.out.hob = IDE_VALID_OUT_HOB; - cmd.valid.in.hob = IDE_VALID_IN_HOB; - cmd.tf_flags = IDE_TFLAG_LBA48; - } - - ide_no_data_taskfile(drive, &cmd); - - /* if OK, compute maximum address value */ - if (!(tf->status & ATA_ERR)) - addr = ide_get_lba_addr(&cmd, lba48) + 1; - - return addr; -} - -/* - * Sets maximum virtual LBA address of the drive. - * Returns new maximum virtual LBA address (> 0) or 0 on failure. - */ -static u64 idedisk_set_max_address(ide_drive_t *drive, u64 addr_req, int lba48) -{ - struct ide_cmd cmd; - struct ide_taskfile *tf = &cmd.tf; - u64 addr_set = 0; - - addr_req--; - - memset(&cmd, 0, sizeof(cmd)); - tf->lbal = (addr_req >> 0) & 0xff; - tf->lbam = (addr_req >>= 8) & 0xff; - tf->lbah = (addr_req >>= 8) & 0xff; - if (lba48) { - cmd.hob.lbal = (addr_req >>= 8) & 0xff; - cmd.hob.lbam = (addr_req >>= 8) & 0xff; - cmd.hob.lbah = (addr_req >>= 8) & 0xff; - tf->command = ATA_CMD_SET_MAX_EXT; - } else { - tf->device = (addr_req >>= 8) & 0x0f; - tf->command = ATA_CMD_SET_MAX; - } - tf->device |= ATA_LBA; - - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - if (lba48) { - cmd.valid.out.hob = IDE_VALID_OUT_HOB; - cmd.valid.in.hob = IDE_VALID_IN_HOB; - cmd.tf_flags = IDE_TFLAG_LBA48; - } - - ide_no_data_taskfile(drive, &cmd); - - /* if OK, compute maximum address value */ - if (!(tf->status & ATA_ERR)) - addr_set = ide_get_lba_addr(&cmd, lba48) + 1; - - return addr_set; -} - -static unsigned long long sectors_to_MB(unsigned long long n) -{ - n <<= 9; /* make it bytes */ - do_div(n, 1000000); /* make it MB */ - return n; -} - -/* - * Some disks report total number of sectors instead of - * maximum sector address. We list them here. - */ -static const struct drive_list_entry hpa_list[] = { - { "ST340823A", NULL }, - { "ST320413A", NULL }, - { "ST310211A", NULL }, - { NULL, NULL } -}; - -static u64 ide_disk_hpa_get_native_capacity(ide_drive_t *drive, int lba48) -{ - u64 capacity, set_max; - - capacity = drive->capacity64; - set_max = idedisk_read_native_max_address(drive, lba48); - - if (ide_in_drive_list(drive->id, hpa_list)) { - /* - * Since we are inclusive wrt to firmware revisions do this - * extra check and apply the workaround only when needed. - */ - if (set_max == capacity + 1) - set_max--; - } - - return set_max; -} - -static u64 ide_disk_hpa_set_capacity(ide_drive_t *drive, u64 set_max, int lba48) -{ - set_max = idedisk_set_max_address(drive, set_max, lba48); - if (set_max) - drive->capacity64 = set_max; - - return set_max; -} - -static void idedisk_check_hpa(ide_drive_t *drive) -{ - u64 capacity, set_max; - int lba48 = ata_id_lba48_enabled(drive->id); - - capacity = drive->capacity64; - set_max = ide_disk_hpa_get_native_capacity(drive, lba48); - - if (set_max <= capacity) - return; - - drive->probed_capacity = set_max; - - printk(KERN_INFO "%s: Host Protected Area detected.\n" - "\tcurrent capacity is %llu sectors (%llu MB)\n" - "\tnative capacity is %llu sectors (%llu MB)\n", - drive->name, - capacity, sectors_to_MB(capacity), - set_max, sectors_to_MB(set_max)); - - if ((drive->dev_flags & IDE_DFLAG_NOHPA) == 0) - return; - - set_max = ide_disk_hpa_set_capacity(drive, set_max, lba48); - if (set_max) - printk(KERN_INFO "%s: Host Protected Area disabled.\n", - drive->name); -} - -static int ide_disk_get_capacity(ide_drive_t *drive) -{ - u16 *id = drive->id; - int lba; - - if (ata_id_lba48_enabled(id)) { - /* drive speaks 48-bit LBA */ - lba = 1; - drive->capacity64 = ata_id_u64(id, ATA_ID_LBA_CAPACITY_2); - } else if (ata_id_has_lba(id) && ata_id_is_lba_capacity_ok(id)) { - /* drive speaks 28-bit LBA */ - lba = 1; - drive->capacity64 = ata_id_u32(id, ATA_ID_LBA_CAPACITY); - } else { - /* drive speaks boring old 28-bit CHS */ - lba = 0; - drive->capacity64 = drive->cyl * drive->head * drive->sect; - } - - drive->probed_capacity = drive->capacity64; - - if (lba) { - drive->dev_flags |= IDE_DFLAG_LBA; - - /* - * If this device supports the Host Protected Area feature set, - * then we may need to change our opinion about its capacity. - */ - if (ata_id_hpa_enabled(id)) - idedisk_check_hpa(drive); - } - - /* limit drive capacity to 137GB if LBA48 cannot be used */ - if ((drive->dev_flags & IDE_DFLAG_LBA48) == 0 && - drive->capacity64 > 1ULL << 28) { - printk(KERN_WARNING "%s: cannot use LBA48 - full capacity " - "%llu sectors (%llu MB)\n", - drive->name, (unsigned long long)drive->capacity64, - sectors_to_MB(drive->capacity64)); - drive->probed_capacity = drive->capacity64 = 1ULL << 28; - } - - if ((drive->hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA) && - (drive->dev_flags & IDE_DFLAG_LBA48)) { - if (drive->capacity64 > 1ULL << 28) { - printk(KERN_INFO "%s: cannot use LBA48 DMA - PIO mode" - " will be used for accessing sectors " - "> %u\n", drive->name, 1 << 28); - } else - drive->dev_flags &= ~IDE_DFLAG_LBA48; - } - - return 0; -} - -static void ide_disk_unlock_native_capacity(ide_drive_t *drive) -{ - u16 *id = drive->id; - int lba48 = ata_id_lba48_enabled(id); - - if ((drive->dev_flags & IDE_DFLAG_LBA) == 0 || - ata_id_hpa_enabled(id) == 0) - return; - - /* - * according to the spec the SET MAX ADDRESS command shall be - * immediately preceded by a READ NATIVE MAX ADDRESS command - */ - if (!ide_disk_hpa_get_native_capacity(drive, lba48)) - return; - - if (ide_disk_hpa_set_capacity(drive, drive->probed_capacity, lba48)) - drive->dev_flags |= IDE_DFLAG_NOHPA; /* disable HPA on resume */ -} - -static bool idedisk_prep_rq(ide_drive_t *drive, struct request *rq) -{ - struct ide_cmd *cmd; - - if (req_op(rq) != REQ_OP_FLUSH) - return true; - - if (ide_req(rq)->special) { - cmd = ide_req(rq)->special; - memset(cmd, 0, sizeof(*cmd)); - } else { - cmd = kzalloc(sizeof(*cmd), GFP_ATOMIC); - } - - /* FIXME: map struct ide_taskfile on rq->cmd[] */ - BUG_ON(cmd == NULL); - - if (ata_id_flush_ext_enabled(drive->id) && - (drive->capacity64 >= (1UL << 28))) - cmd->tf.command = ATA_CMD_FLUSH_EXT; - else - cmd->tf.command = ATA_CMD_FLUSH; - cmd->valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd->tf_flags = IDE_TFLAG_DYN; - cmd->protocol = ATA_PROT_NODATA; - rq->cmd_flags &= ~REQ_OP_MASK; - rq->cmd_flags |= REQ_OP_DRV_OUT; - ide_req(rq)->type = ATA_PRIV_TASKFILE; - ide_req(rq)->special = cmd; - cmd->rq = rq; - - return true; -} - -ide_devset_get(multcount, mult_count); - -/* - * This is tightly woven into the driver->do_special can not touch. - * DON'T do it again until a total personality rewrite is committed. - */ -static int set_multcount(ide_drive_t *drive, int arg) -{ - struct request *rq; - - if (arg < 0 || arg > (drive->id[ATA_ID_MAX_MULTSECT] & 0xff)) - return -EINVAL; - - if (drive->special_flags & IDE_SFLAG_SET_MULTMODE) - return -EBUSY; - - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); - ide_req(rq)->type = ATA_PRIV_TASKFILE; - - drive->mult_req = arg; - drive->special_flags |= IDE_SFLAG_SET_MULTMODE; - blk_execute_rq(NULL, rq, 0); - blk_put_request(rq); - - return (drive->mult_count == arg) ? 0 : -EIO; -} - -ide_devset_get_flag(nowerr, IDE_DFLAG_NOWERR); - -static int set_nowerr(ide_drive_t *drive, int arg) -{ - if (arg < 0 || arg > 1) - return -EINVAL; - - if (arg) - drive->dev_flags |= IDE_DFLAG_NOWERR; - else - drive->dev_flags &= ~IDE_DFLAG_NOWERR; - - drive->bad_wstat = arg ? BAD_R_STAT : BAD_W_STAT; - - return 0; -} - -static int ide_do_setfeature(ide_drive_t *drive, u8 feature, u8 nsect) -{ - struct ide_cmd cmd; - - memset(&cmd, 0, sizeof(cmd)); - cmd.tf.feature = feature; - cmd.tf.nsect = nsect; - cmd.tf.command = ATA_CMD_SET_FEATURES; - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - - return ide_no_data_taskfile(drive, &cmd); -} - -static void update_flush(ide_drive_t *drive) -{ - u16 *id = drive->id; - bool wc = false; - - if (drive->dev_flags & IDE_DFLAG_WCACHE) { - unsigned long long capacity; - int barrier; - /* - * We must avoid issuing commands a drive does not - * understand or we may crash it. We check flush cache - * is supported. We also check we have the LBA48 flush - * cache if the drive capacity is too large. By this - * time we have trimmed the drive capacity if LBA48 is - * not available so we don't need to recheck that. - */ - capacity = ide_gd_capacity(drive); - barrier = ata_id_flush_enabled(id) && - (drive->dev_flags & IDE_DFLAG_NOFLUSH) == 0 && - ((drive->dev_flags & IDE_DFLAG_LBA48) == 0 || - capacity <= (1ULL << 28) || - ata_id_flush_ext_enabled(id)); - - printk(KERN_INFO "%s: cache flushes %ssupported\n", - drive->name, barrier ? "" : "not "); - - if (barrier) { - wc = true; - drive->prep_rq = idedisk_prep_rq; - } - } - - blk_queue_write_cache(drive->queue, wc, false); -} - -ide_devset_get_flag(wcache, IDE_DFLAG_WCACHE); - -static int set_wcache(ide_drive_t *drive, int arg) -{ - int err = 1; - - if (arg < 0 || arg > 1) - return -EINVAL; - - if (ata_id_flush_enabled(drive->id)) { - err = ide_do_setfeature(drive, - arg ? SETFEATURES_WC_ON : SETFEATURES_WC_OFF, 0); - if (err == 0) { - if (arg) - drive->dev_flags |= IDE_DFLAG_WCACHE; - else - drive->dev_flags &= ~IDE_DFLAG_WCACHE; - } - } - - update_flush(drive); - - return err; -} - -static int do_idedisk_flushcache(ide_drive_t *drive) -{ - struct ide_cmd cmd; - - memset(&cmd, 0, sizeof(cmd)); - if (ata_id_flush_ext_enabled(drive->id)) - cmd.tf.command = ATA_CMD_FLUSH_EXT; - else - cmd.tf.command = ATA_CMD_FLUSH; - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - - return ide_no_data_taskfile(drive, &cmd); -} - -ide_devset_get(acoustic, acoustic); - -static int set_acoustic(ide_drive_t *drive, int arg) -{ - if (arg < 0 || arg > 254) - return -EINVAL; - - ide_do_setfeature(drive, - arg ? SETFEATURES_AAM_ON : SETFEATURES_AAM_OFF, arg); - - drive->acoustic = arg; - - return 0; -} - -ide_devset_get_flag(addressing, IDE_DFLAG_LBA48); - -/* - * drive->addressing: - * 0: 28-bit - * 1: 48-bit - * 2: 48-bit capable doing 28-bit - */ -static int set_addressing(ide_drive_t *drive, int arg) -{ - if (arg < 0 || arg > 2) - return -EINVAL; - - if (arg && ((drive->hwif->host_flags & IDE_HFLAG_NO_LBA48) || - ata_id_lba48_enabled(drive->id) == 0)) - return -EIO; - - if (arg == 2) - arg = 0; - - if (arg) - drive->dev_flags |= IDE_DFLAG_LBA48; - else - drive->dev_flags &= ~IDE_DFLAG_LBA48; - - return 0; -} - -ide_ext_devset_rw(acoustic, acoustic); -ide_ext_devset_rw(address, addressing); -ide_ext_devset_rw(multcount, multcount); -ide_ext_devset_rw(wcache, wcache); - -ide_ext_devset_rw_sync(nowerr, nowerr); - -static int ide_disk_check(ide_drive_t *drive, const char *s) -{ - return 1; -} - -static void ide_disk_setup(ide_drive_t *drive) -{ - struct ide_disk_obj *idkp = drive->driver_data; - struct request_queue *q = drive->queue; - ide_hwif_t *hwif = drive->hwif; - u16 *id = drive->id; - char *m = (char *)&id[ATA_ID_PROD]; - unsigned long long capacity; - - ide_proc_register_driver(drive, idkp->driver); - - if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) - return; - - if (drive->dev_flags & IDE_DFLAG_REMOVABLE) { - /* - * Removable disks (eg. SYQUEST); ignore 'WD' drives - */ - if (m[0] != 'W' || m[1] != 'D') - drive->dev_flags |= IDE_DFLAG_DOORLOCKING; - } - - (void)set_addressing(drive, 1); - - if (drive->dev_flags & IDE_DFLAG_LBA48) { - int max_s = 2048; - - if (max_s > hwif->rqsize) - max_s = hwif->rqsize; - - blk_queue_max_hw_sectors(q, max_s); - } - - printk(KERN_INFO "%s: max request size: %dKiB\n", drive->name, - queue_max_sectors(q) / 2); - - if (ata_id_is_ssd(id)) { - blk_queue_flag_set(QUEUE_FLAG_NONROT, q); - blk_queue_flag_clear(QUEUE_FLAG_ADD_RANDOM, q); - } - - /* calculate drive capacity, and select LBA if possible */ - ide_disk_get_capacity(drive); - - /* - * if possible, give fdisk access to more of the drive, - * by correcting bios_cyls: - */ - capacity = ide_gd_capacity(drive); - - if ((drive->dev_flags & IDE_DFLAG_FORCED_GEOM) == 0) { - if (ata_id_lba48_enabled(drive->id)) { - /* compatibility */ - drive->bios_sect = 63; - drive->bios_head = 255; - } - - if (drive->bios_sect && drive->bios_head) { - unsigned int cap0 = capacity; /* truncate to 32 bits */ - unsigned int cylsz, cyl; - - if (cap0 != capacity) - drive->bios_cyl = 65535; - else { - cylsz = drive->bios_sect * drive->bios_head; - cyl = cap0 / cylsz; - if (cyl > 65535) - cyl = 65535; - if (cyl > drive->bios_cyl) - drive->bios_cyl = cyl; - } - } - } - printk(KERN_INFO "%s: %llu sectors (%llu MB)", - drive->name, capacity, sectors_to_MB(capacity)); - - /* Only print cache size when it was specified */ - if (id[ATA_ID_BUF_SIZE]) - printk(KERN_CONT " w/%dKiB Cache", id[ATA_ID_BUF_SIZE] / 2); - - printk(KERN_CONT ", CHS=%d/%d/%d\n", - drive->bios_cyl, drive->bios_head, drive->bios_sect); - - /* write cache enabled? */ - if ((id[ATA_ID_CSFO] & 1) || ata_id_wcache_enabled(id)) - drive->dev_flags |= IDE_DFLAG_WCACHE; - - set_wcache(drive, 1); - - if ((drive->dev_flags & IDE_DFLAG_LBA) == 0 && - (drive->head == 0 || drive->head > 16)) - printk(KERN_ERR "%s: invalid geometry: %d physical heads?\n", - drive->name, drive->head); -} - -static void ide_disk_flush(ide_drive_t *drive) -{ - if (ata_id_flush_enabled(drive->id) == 0 || - (drive->dev_flags & IDE_DFLAG_WCACHE) == 0) - return; - - if (do_idedisk_flushcache(drive)) - printk(KERN_INFO "%s: wcache flush failed!\n", drive->name); -} - -static int ide_disk_init_media(ide_drive_t *drive, struct gendisk *disk) -{ - return 0; -} - -static int ide_disk_set_doorlock(ide_drive_t *drive, struct gendisk *disk, - int on) -{ - struct ide_cmd cmd; - int ret; - - if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) == 0) - return 0; - - memset(&cmd, 0, sizeof(cmd)); - cmd.tf.command = on ? ATA_CMD_MEDIA_LOCK : ATA_CMD_MEDIA_UNLOCK; - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - - ret = ide_no_data_taskfile(drive, &cmd); - - if (ret) - drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; - - return ret; -} - -const struct ide_disk_ops ide_ata_disk_ops = { - .check = ide_disk_check, - .unlock_native_capacity = ide_disk_unlock_native_capacity, - .get_capacity = ide_disk_get_capacity, - .setup = ide_disk_setup, - .flush = ide_disk_flush, - .init_media = ide_disk_init_media, - .set_doorlock = ide_disk_set_doorlock, - .do_request = ide_do_rw_disk, - .ioctl = ide_disk_ioctl, - .compat_ioctl = ide_disk_ioctl, -}; diff --git a/drivers/ide/ide-disk.h b/drivers/ide/ide-disk.h deleted file mode 100644 index 0e8cc18bfda6..000000000000 --- a/drivers/ide/ide-disk.h +++ /dev/null @@ -1,30 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __IDE_DISK_H -#define __IDE_DISK_H - -#include "ide-gd.h" - -#ifdef CONFIG_IDE_GD_ATA -/* ide-disk.c */ -extern const struct ide_disk_ops ide_ata_disk_ops; -ide_decl_devset(address); -ide_decl_devset(multcount); -ide_decl_devset(nowerr); -ide_decl_devset(wcache); -ide_decl_devset(acoustic); - -/* ide-disk_ioctl.c */ -int ide_disk_ioctl(ide_drive_t *, struct block_device *, fmode_t, unsigned int, - unsigned long); - -#ifdef CONFIG_IDE_PROC_FS -/* ide-disk_proc.c */ -extern ide_proc_entry_t ide_disk_proc[]; -extern const struct ide_proc_devset ide_disk_settings[]; -#endif -#else -#define ide_disk_proc NULL -#define ide_disk_settings NULL -#endif - -#endif /* __IDE_DISK_H */ diff --git a/drivers/ide/ide-disk_ioctl.c b/drivers/ide/ide-disk_ioctl.c deleted file mode 100644 index 2c45616cff4f..000000000000 --- a/drivers/ide/ide-disk_ioctl.c +++ /dev/null @@ -1,33 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/kernel.h> -#include <linux/ide.h> -#include <linux/hdreg.h> -#include <linux/mutex.h> - -#include "ide-disk.h" - -static DEFINE_MUTEX(ide_disk_ioctl_mutex); -static const struct ide_ioctl_devset ide_disk_ioctl_settings[] = { -{ HDIO_GET_ADDRESS, HDIO_SET_ADDRESS, &ide_devset_address }, -{ HDIO_GET_MULTCOUNT, HDIO_SET_MULTCOUNT, &ide_devset_multcount }, -{ HDIO_GET_NOWERR, HDIO_SET_NOWERR, &ide_devset_nowerr }, -{ HDIO_GET_WCACHE, HDIO_SET_WCACHE, &ide_devset_wcache }, -{ HDIO_GET_ACOUSTIC, HDIO_SET_ACOUSTIC, &ide_devset_acoustic }, -{ 0 } -}; - -int ide_disk_ioctl(ide_drive_t *drive, struct block_device *bdev, fmode_t mode, - unsigned int cmd, unsigned long arg) -{ - int err; - - mutex_lock(&ide_disk_ioctl_mutex); - err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_disk_ioctl_settings); - if (err != -EOPNOTSUPP) - goto out; - - err = generic_ide_ioctl(drive, bdev, cmd, arg); -out: - mutex_unlock(&ide_disk_ioctl_mutex); - return err; -} diff --git a/drivers/ide/ide-disk_proc.c b/drivers/ide/ide-disk_proc.c deleted file mode 100644 index 95d239b2f646..000000000000 --- a/drivers/ide/ide-disk_proc.c +++ /dev/null @@ -1,125 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/kernel.h> -#include <linux/ide.h> -#include <linux/slab.h> -#include <linux/export.h> -#include <linux/seq_file.h> - -#include "ide-disk.h" - -static int smart_enable(ide_drive_t *drive) -{ - struct ide_cmd cmd; - struct ide_taskfile *tf = &cmd.tf; - - memset(&cmd, 0, sizeof(cmd)); - tf->feature = ATA_SMART_ENABLE; - tf->lbam = ATA_SMART_LBAM_PASS; - tf->lbah = ATA_SMART_LBAH_PASS; - tf->command = ATA_CMD_SMART; - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - - return ide_no_data_taskfile(drive, &cmd); -} - -static int get_smart_data(ide_drive_t *drive, u8 *buf, u8 sub_cmd) -{ - struct ide_cmd cmd; - struct ide_taskfile *tf = &cmd.tf; - - memset(&cmd, 0, sizeof(cmd)); - tf->feature = sub_cmd; - tf->nsect = 0x01; - tf->lbam = ATA_SMART_LBAM_PASS; - tf->lbah = ATA_SMART_LBAH_PASS; - tf->command = ATA_CMD_SMART; - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - cmd.protocol = ATA_PROT_PIO; - - return ide_raw_taskfile(drive, &cmd, buf, 1); -} - -static int idedisk_cache_proc_show(struct seq_file *m, void *v) -{ - ide_drive_t *drive = (ide_drive_t *) m->private; - - if (drive->dev_flags & IDE_DFLAG_ID_READ) - seq_printf(m, "%i\n", drive->id[ATA_ID_BUF_SIZE] / 2); - else - seq_printf(m, "(none)\n"); - return 0; -} - -static int idedisk_capacity_proc_show(struct seq_file *m, void *v) -{ - ide_drive_t*drive = (ide_drive_t *)m->private; - - seq_printf(m, "%llu\n", (long long)ide_gd_capacity(drive)); - return 0; -} - -static int __idedisk_proc_show(struct seq_file *m, ide_drive_t *drive, u8 sub_cmd) -{ - u8 *buf; - - buf = kmalloc(SECTOR_SIZE, GFP_KERNEL); - if (!buf) - return -ENOMEM; - - (void)smart_enable(drive); - - if (get_smart_data(drive, buf, sub_cmd) == 0) { - __le16 *val = (__le16 *)buf; - int i; - - for (i = 0; i < SECTOR_SIZE / 2; i++) { - seq_printf(m, "%04x%c", le16_to_cpu(val[i]), - (i % 8) == 7 ? '\n' : ' '); - } - } - kfree(buf); - return 0; -} - -static int idedisk_sv_proc_show(struct seq_file *m, void *v) -{ - return __idedisk_proc_show(m, m->private, ATA_SMART_READ_VALUES); -} - -static int idedisk_st_proc_show(struct seq_file *m, void *v) -{ - return __idedisk_proc_show(m, m->private, ATA_SMART_READ_THRESHOLDS); -} - -ide_proc_entry_t ide_disk_proc[] = { - { "cache", S_IFREG|S_IRUGO, idedisk_cache_proc_show }, - { "capacity", S_IFREG|S_IRUGO, idedisk_capacity_proc_show }, - { "geometry", S_IFREG|S_IRUGO, ide_geometry_proc_show }, - { "smart_values", S_IFREG|S_IRUSR, idedisk_sv_proc_show }, - { "smart_thresholds", S_IFREG|S_IRUSR, idedisk_st_proc_show }, - {} -}; - -ide_devset_rw_field(bios_cyl, bios_cyl); -ide_devset_rw_field(bios_head, bios_head); -ide_devset_rw_field(bios_sect, bios_sect); -ide_devset_rw_field(failures, failures); -ide_devset_rw_field(lun, lun); -ide_devset_rw_field(max_failures, max_failures); - -const struct ide_proc_devset ide_disk_settings[] = { - IDE_PROC_DEVSET(acoustic, 0, 254), - IDE_PROC_DEVSET(address, 0, 2), - IDE_PROC_DEVSET(bios_cyl, 0, 65535), - IDE_PROC_DEVSET(bios_head, 0, 255), - IDE_PROC_DEVSET(bios_sect, 0, 63), - IDE_PROC_DEVSET(failures, 0, 65535), - IDE_PROC_DEVSET(lun, 0, 7), - IDE_PROC_DEVSET(max_failures, 0, 65535), - IDE_PROC_DEVSET(multcount, 0, 16), - IDE_PROC_DEVSET(nowerr, 0, 1), - IDE_PROC_DEVSET(wcache, 0, 1), - { NULL }, -}; diff --git a/drivers/ide/ide-dma-sff.c b/drivers/ide/ide-dma-sff.c deleted file mode 100644 index b7c2c0bd18b5..000000000000 --- a/drivers/ide/ide-dma-sff.c +++ /dev/null @@ -1,336 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/export.h> -#include <linux/ide.h> -#include <linux/scatterlist.h> -#include <linux/dma-mapping.h> -#include <linux/io.h> - -/** - * config_drive_for_dma - attempt to activate IDE DMA - * @drive: the drive to place in DMA mode - * - * If the drive supports at least mode 2 DMA or UDMA of any kind - * then attempt to place it into DMA mode. Drives that are known to - * support DMA but predate the DMA properties or that are known - * to have DMA handling bugs are also set up appropriately based - * on the good/bad drive lists. - */ - -int config_drive_for_dma(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u16 *id = drive->id; - - if (drive->media != ide_disk) { - if (hwif->host_flags & IDE_HFLAG_NO_ATAPI_DMA) - return 0; - } - - /* - * Enable DMA on any drive that has - * UltraDMA (mode 0/1/2/3/4/5/6) enabled - */ - if ((id[ATA_ID_FIELD_VALID] & 4) && - ((id[ATA_ID_UDMA_MODES] >> 8) & 0x7f)) - return 1; - - /* - * Enable DMA on any drive that has mode2 DMA - * (multi or single) enabled - */ - if ((id[ATA_ID_MWDMA_MODES] & 0x404) == 0x404 || - (id[ATA_ID_SWDMA_MODES] & 0x404) == 0x404) - return 1; - - /* Consult the list of known "good" drives */ - if (ide_dma_good_drive(drive)) - return 1; - - return 0; -} - -u8 ide_dma_sff_read_status(ide_hwif_t *hwif) -{ - unsigned long addr = hwif->dma_base + ATA_DMA_STATUS; - - if (hwif->host_flags & IDE_HFLAG_MMIO) - return readb((void __iomem *)addr); - else - return inb(addr); -} -EXPORT_SYMBOL_GPL(ide_dma_sff_read_status); - -static void ide_dma_sff_write_status(ide_hwif_t *hwif, u8 val) -{ - unsigned long addr = hwif->dma_base + ATA_DMA_STATUS; - - if (hwif->host_flags & IDE_HFLAG_MMIO) - writeb(val, (void __iomem *)addr); - else - outb(val, addr); -} - -/** - * ide_dma_host_set - Enable/disable DMA on a host - * @drive: drive to control - * - * Enable/disable DMA on an IDE controller following generic - * bus-mastering IDE controller behaviour. - */ - -void ide_dma_host_set(ide_drive_t *drive, int on) -{ - ide_hwif_t *hwif = drive->hwif; - u8 unit = drive->dn & 1; - u8 dma_stat = hwif->dma_ops->dma_sff_read_status(hwif); - - if (on) - dma_stat |= (1 << (5 + unit)); - else - dma_stat &= ~(1 << (5 + unit)); - - ide_dma_sff_write_status(hwif, dma_stat); -} -EXPORT_SYMBOL_GPL(ide_dma_host_set); - -/** - * ide_build_dmatable - build IDE DMA table - * - * ide_build_dmatable() prepares a dma request. We map the command - * to get the pci bus addresses of the buffers and then build up - * the PRD table that the IDE layer wants to be fed. - * - * Most chipsets correctly interpret a length of 0x0000 as 64KB, - * but at least one (e.g. CS5530) misinterprets it as zero (!). - * So we break the 64KB entry into two 32KB entries instead. - * - * Returns the number of built PRD entries if all went okay, - * returns 0 otherwise. - * - * May also be invoked from trm290.c - */ - -int ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - __le32 *table = (__le32 *)hwif->dmatable_cpu; - unsigned int count = 0; - int i; - struct scatterlist *sg; - u8 is_trm290 = !!(hwif->host_flags & IDE_HFLAG_TRM290); - - for_each_sg(hwif->sg_table, sg, cmd->sg_nents, i) { - u32 cur_addr, cur_len, xcount, bcount; - - cur_addr = sg_dma_address(sg); - cur_len = sg_dma_len(sg); - - /* - * Fill in the dma table, without crossing any 64kB boundaries. - * Most hardware requires 16-bit alignment of all blocks, - * but the trm290 requires 32-bit alignment. - */ - - while (cur_len) { - if (count++ >= PRD_ENTRIES) - goto use_pio_instead; - - bcount = 0x10000 - (cur_addr & 0xffff); - if (bcount > cur_len) - bcount = cur_len; - *table++ = cpu_to_le32(cur_addr); - xcount = bcount & 0xffff; - if (is_trm290) - xcount = ((xcount >> 2) - 1) << 16; - else if (xcount == 0x0000) { - if (count++ >= PRD_ENTRIES) - goto use_pio_instead; - *table++ = cpu_to_le32(0x8000); - *table++ = cpu_to_le32(cur_addr + 0x8000); - xcount = 0x8000; - } - *table++ = cpu_to_le32(xcount); - cur_addr += bcount; - cur_len -= bcount; - } - } - - if (count) { - if (!is_trm290) - *--table |= cpu_to_le32(0x80000000); - return count; - } - -use_pio_instead: - printk(KERN_ERR "%s: %s\n", drive->name, - count ? "DMA table too small" : "empty DMA table?"); - - return 0; /* revert to PIO for this request */ -} -EXPORT_SYMBOL_GPL(ide_build_dmatable); - -/** - * ide_dma_setup - begin a DMA phase - * @drive: target device - * @cmd: command - * - * Build an IDE DMA PRD (IDE speak for scatter gather table) - * and then set up the DMA transfer registers for a device - * that follows generic IDE PCI DMA behaviour. Controllers can - * override this function if they need to - * - * Returns 0 on success. If a PIO fallback is required then 1 - * is returned. - */ - -int ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; - u8 rw = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 0 : ATA_DMA_WR; - u8 dma_stat; - - /* fall back to pio! */ - if (ide_build_dmatable(drive, cmd) == 0) { - ide_map_sg(drive, cmd); - return 1; - } - - /* PRD table */ - if (mmio) - writel(hwif->dmatable_dma, - (void __iomem *)(hwif->dma_base + ATA_DMA_TABLE_OFS)); - else - outl(hwif->dmatable_dma, hwif->dma_base + ATA_DMA_TABLE_OFS); - - /* specify r/w */ - if (mmio) - writeb(rw, (void __iomem *)(hwif->dma_base + ATA_DMA_CMD)); - else - outb(rw, hwif->dma_base + ATA_DMA_CMD); - - /* read DMA status for INTR & ERROR flags */ - dma_stat = hwif->dma_ops->dma_sff_read_status(hwif); - - /* clear INTR & ERROR flags */ - ide_dma_sff_write_status(hwif, dma_stat | ATA_DMA_ERR | ATA_DMA_INTR); - - return 0; -} -EXPORT_SYMBOL_GPL(ide_dma_setup); - -/** - * ide_dma_sff_timer_expiry - handle a DMA timeout - * @drive: Drive that timed out - * - * An IDE DMA transfer timed out. In the event of an error we ask - * the driver to resolve the problem, if a DMA transfer is still - * in progress we continue to wait (arguably we need to add a - * secondary 'I don't care what the drive thinks' timeout here) - * Finally if we have an interrupt we let it complete the I/O. - * But only one time - we clear expiry and if it's still not - * completed after WAIT_CMD, we error and retry in PIO. - * This can occur if an interrupt is lost or due to hang or bugs. - */ - -int ide_dma_sff_timer_expiry(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 dma_stat = hwif->dma_ops->dma_sff_read_status(hwif); - - printk(KERN_WARNING "%s: %s: DMA status (0x%02x)\n", - drive->name, __func__, dma_stat); - - if ((dma_stat & 0x18) == 0x18) /* BUSY Stupid Early Timer !! */ - return WAIT_CMD; - - hwif->expiry = NULL; /* one free ride for now */ - - if (dma_stat & ATA_DMA_ERR) /* ERROR */ - return -1; - - if (dma_stat & ATA_DMA_ACTIVE) /* DMAing */ - return WAIT_CMD; - - if (dma_stat & ATA_DMA_INTR) /* Got an Interrupt */ - return WAIT_CMD; - - return 0; /* Status is unknown -- reset the bus */ -} -EXPORT_SYMBOL_GPL(ide_dma_sff_timer_expiry); - -void ide_dma_start(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 dma_cmd; - - /* Note that this is done *after* the cmd has - * been issued to the drive, as per the BM-IDE spec. - * The Promise Ultra33 doesn't work correctly when - * we do this part before issuing the drive cmd. - */ - if (hwif->host_flags & IDE_HFLAG_MMIO) { - dma_cmd = readb((void __iomem *)(hwif->dma_base + ATA_DMA_CMD)); - writeb(dma_cmd | ATA_DMA_START, - (void __iomem *)(hwif->dma_base + ATA_DMA_CMD)); - } else { - dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); - outb(dma_cmd | ATA_DMA_START, hwif->dma_base + ATA_DMA_CMD); - } -} -EXPORT_SYMBOL_GPL(ide_dma_start); - -/* returns 1 on error, 0 otherwise */ -int ide_dma_end(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 dma_stat = 0, dma_cmd = 0; - - /* stop DMA */ - if (hwif->host_flags & IDE_HFLAG_MMIO) { - dma_cmd = readb((void __iomem *)(hwif->dma_base + ATA_DMA_CMD)); - writeb(dma_cmd & ~ATA_DMA_START, - (void __iomem *)(hwif->dma_base + ATA_DMA_CMD)); - } else { - dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); - outb(dma_cmd & ~ATA_DMA_START, hwif->dma_base + ATA_DMA_CMD); - } - - /* get DMA status */ - dma_stat = hwif->dma_ops->dma_sff_read_status(hwif); - - /* clear INTR & ERROR bits */ - ide_dma_sff_write_status(hwif, dma_stat | ATA_DMA_ERR | ATA_DMA_INTR); - -#define CHECK_DMA_MASK (ATA_DMA_ACTIVE | ATA_DMA_ERR | ATA_DMA_INTR) - - /* verify good DMA status */ - if ((dma_stat & CHECK_DMA_MASK) != ATA_DMA_INTR) - return 0x10 | dma_stat; - return 0; -} -EXPORT_SYMBOL_GPL(ide_dma_end); - -/* returns 1 if dma irq issued, 0 otherwise */ -int ide_dma_test_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 dma_stat = hwif->dma_ops->dma_sff_read_status(hwif); - - return (dma_stat & ATA_DMA_INTR) ? 1 : 0; -} -EXPORT_SYMBOL_GPL(ide_dma_test_irq); - -const struct ide_dma_ops sff_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = ide_dma_start, - .dma_end = ide_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = ide_dma_sff_read_status, -}; -EXPORT_SYMBOL_GPL(sff_dma_ops); diff --git a/drivers/ide/ide-dma.c b/drivers/ide/ide-dma.c deleted file mode 100644 index 6f344654ef22..000000000000 --- a/drivers/ide/ide-dma.c +++ /dev/null @@ -1,551 +0,0 @@ -/* - * IDE DMA support (including IDE PCI BM-DMA). - * - * Copyright (C) 1995-1998 Mark Lord - * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2004, 2007 Bartlomiej Zolnierkiewicz - * - * May be copied or modified under the terms of the GNU General Public License - * - * DMA is supported for all IDE devices (disk drives, cdroms, tapes, floppies). - */ - -/* - * Special Thanks to Mark for his Six years of work. - */ - -/* - * Thanks to "Christopher J. Reimer" <reimer@doe.carleton.ca> for - * fixing the problem with the BIOS on some Acer motherboards. - * - * Thanks to "Benoit Poulot-Cazajous" <poulot@chorus.fr> for testing - * "TX" chipset compatibility and for providing patches for the "TX" chipset. - * - * Thanks to Christian Brunner <chb@muc.de> for taking a good first crack - * at generic DMA -- his patches were referred to when preparing this code. - * - * Most importantly, thanks to Robert Bringman <rob@mars.trion.com> - * for supplying a Promise UDMA board & WD UDMA drive for this work! - */ - -#include <linux/types.h> -#include <linux/gfp.h> -#include <linux/kernel.h> -#include <linux/export.h> -#include <linux/ide.h> -#include <linux/scatterlist.h> -#include <linux/dma-mapping.h> - -static const struct drive_list_entry drive_whitelist[] = { - { "Micropolis 2112A" , NULL }, - { "CONNER CTMA 4000" , NULL }, - { "CONNER CTT8000-A" , NULL }, - { "ST34342A" , NULL }, - { NULL , NULL } -}; - -static const struct drive_list_entry drive_blacklist[] = { - { "WDC AC11000H" , NULL }, - { "WDC AC22100H" , NULL }, - { "WDC AC32500H" , NULL }, - { "WDC AC33100H" , NULL }, - { "WDC AC31600H" , NULL }, - { "WDC AC32100H" , "24.09P07" }, - { "WDC AC23200L" , "21.10N21" }, - { "Compaq CRD-8241B" , NULL }, - { "CRD-8400B" , NULL }, - { "CRD-8480B", NULL }, - { "CRD-8482B", NULL }, - { "CRD-84" , NULL }, - { "SanDisk SDP3B" , NULL }, - { "SanDisk SDP3B-64" , NULL }, - { "SANYO CD-ROM CRD" , NULL }, - { "HITACHI CDR-8" , NULL }, - { "HITACHI CDR-8335" , NULL }, - { "HITACHI CDR-8435" , NULL }, - { "Toshiba CD-ROM XM-6202B" , NULL }, - { "TOSHIBA CD-ROM XM-1702BC", NULL }, - { "CD-532E-A" , NULL }, - { "E-IDE CD-ROM CR-840", NULL }, - { "CD-ROM Drive/F5A", NULL }, - { "WPI CDD-820", NULL }, - { "SAMSUNG CD-ROM SC-148C", NULL }, - { "SAMSUNG CD-ROM SC", NULL }, - { "ATAPI CD-ROM DRIVE 40X MAXIMUM", NULL }, - { "_NEC DV5800A", NULL }, - { "SAMSUNG CD-ROM SN-124", "N001" }, - { "Seagate STT20000A", NULL }, - { "CD-ROM CDR_U200", "1.09" }, - { NULL , NULL } - -}; - -/** - * ide_dma_intr - IDE DMA interrupt handler - * @drive: the drive the interrupt is for - * - * Handle an interrupt completing a read/write DMA transfer on an - * IDE device - */ - -ide_startstop_t ide_dma_intr(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_cmd *cmd = &hwif->cmd; - u8 stat = 0, dma_stat = 0; - - drive->waiting_for_dma = 0; - dma_stat = hwif->dma_ops->dma_end(drive); - ide_dma_unmap_sg(drive, cmd); - stat = hwif->tp_ops->read_status(hwif); - - if (OK_STAT(stat, DRIVE_READY, drive->bad_wstat | ATA_DRQ)) { - if (!dma_stat) { - if ((cmd->tf_flags & IDE_TFLAG_FS) == 0) - ide_finish_cmd(drive, cmd, stat); - else - ide_complete_rq(drive, BLK_STS_OK, - blk_rq_sectors(cmd->rq) << 9); - return ide_stopped; - } - printk(KERN_ERR "%s: %s: bad DMA status (0x%02x)\n", - drive->name, __func__, dma_stat); - } - return ide_error(drive, "dma_intr", stat); -} - -int ide_dma_good_drive(ide_drive_t *drive) -{ - return ide_in_drive_list(drive->id, drive_whitelist); -} - -/** - * ide_dma_map_sg - map IDE scatter gather for DMA I/O - * @drive: the drive to map the DMA table for - * @cmd: command - * - * Perform the DMA mapping magic necessary to access the source or - * target buffers of a request via DMA. The lower layers of the - * kernel provide the necessary cache management so that we can - * operate in a portable fashion. - */ - -static int ide_dma_map_sg(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - struct scatterlist *sg = hwif->sg_table; - int i; - - if (cmd->tf_flags & IDE_TFLAG_WRITE) - cmd->sg_dma_direction = DMA_TO_DEVICE; - else - cmd->sg_dma_direction = DMA_FROM_DEVICE; - - i = dma_map_sg(hwif->dev, sg, cmd->sg_nents, cmd->sg_dma_direction); - if (i) { - cmd->orig_sg_nents = cmd->sg_nents; - cmd->sg_nents = i; - } - - return i; -} - -/** - * ide_dma_unmap_sg - clean up DMA mapping - * @drive: The drive to unmap - * - * Teardown mappings after DMA has completed. This must be called - * after the completion of each use of ide_build_dmatable and before - * the next use of ide_build_dmatable. Failure to do so will cause - * an oops as only one mapping can be live for each target at a given - * time. - */ - -void ide_dma_unmap_sg(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - - dma_unmap_sg(hwif->dev, hwif->sg_table, cmd->orig_sg_nents, - cmd->sg_dma_direction); -} -EXPORT_SYMBOL_GPL(ide_dma_unmap_sg); - -/** - * ide_dma_off_quietly - Generic DMA kill - * @drive: drive to control - * - * Turn off the current DMA on this IDE controller. - */ - -void ide_dma_off_quietly(ide_drive_t *drive) -{ - drive->dev_flags &= ~IDE_DFLAG_USING_DMA; - - drive->hwif->dma_ops->dma_host_set(drive, 0); -} -EXPORT_SYMBOL(ide_dma_off_quietly); - -/** - * ide_dma_off - disable DMA on a device - * @drive: drive to disable DMA on - * - * Disable IDE DMA for a device on this IDE controller. - * Inform the user that DMA has been disabled. - */ - -void ide_dma_off(ide_drive_t *drive) -{ - printk(KERN_INFO "%s: DMA disabled\n", drive->name); - ide_dma_off_quietly(drive); -} -EXPORT_SYMBOL(ide_dma_off); - -/** - * ide_dma_on - Enable DMA on a device - * @drive: drive to enable DMA on - * - * Enable IDE DMA for a device on this IDE controller. - */ - -void ide_dma_on(ide_drive_t *drive) -{ - drive->dev_flags |= IDE_DFLAG_USING_DMA; - - drive->hwif->dma_ops->dma_host_set(drive, 1); -} - -int __ide_dma_bad_drive(ide_drive_t *drive) -{ - u16 *id = drive->id; - - int blacklist = ide_in_drive_list(id, drive_blacklist); - if (blacklist) { - printk(KERN_WARNING "%s: Disabling (U)DMA for %s (blacklisted)\n", - drive->name, (char *)&id[ATA_ID_PROD]); - return blacklist; - } - return 0; -} -EXPORT_SYMBOL(__ide_dma_bad_drive); - -static const u8 xfer_mode_bases[] = { - XFER_UDMA_0, - XFER_MW_DMA_0, - XFER_SW_DMA_0, -}; - -static unsigned int ide_get_mode_mask(ide_drive_t *drive, u8 base, u8 req_mode) -{ - u16 *id = drive->id; - ide_hwif_t *hwif = drive->hwif; - const struct ide_port_ops *port_ops = hwif->port_ops; - unsigned int mask = 0; - - switch (base) { - case XFER_UDMA_0: - if ((id[ATA_ID_FIELD_VALID] & 4) == 0) - break; - mask = id[ATA_ID_UDMA_MODES]; - if (port_ops && port_ops->udma_filter) - mask &= port_ops->udma_filter(drive); - else - mask &= hwif->ultra_mask; - - /* - * avoid false cable warning from eighty_ninty_three() - */ - if (req_mode > XFER_UDMA_2) { - if ((mask & 0x78) && (eighty_ninty_three(drive) == 0)) - mask &= 0x07; - } - break; - case XFER_MW_DMA_0: - mask = id[ATA_ID_MWDMA_MODES]; - - /* Also look for the CF specific MWDMA modes... */ - if (ata_id_is_cfa(id) && (id[ATA_ID_CFA_MODES] & 0x38)) { - u8 mode = ((id[ATA_ID_CFA_MODES] & 0x38) >> 3) - 1; - - mask |= ((2 << mode) - 1) << 3; - } - - if (port_ops && port_ops->mdma_filter) - mask &= port_ops->mdma_filter(drive); - else - mask &= hwif->mwdma_mask; - break; - case XFER_SW_DMA_0: - mask = id[ATA_ID_SWDMA_MODES]; - if (!(mask & ATA_SWDMA2) && (id[ATA_ID_OLD_DMA_MODES] >> 8)) { - u8 mode = id[ATA_ID_OLD_DMA_MODES] >> 8; - - /* - * if the mode is valid convert it to the mask - * (the maximum allowed mode is XFER_SW_DMA_2) - */ - if (mode <= 2) - mask = (2 << mode) - 1; - } - mask &= hwif->swdma_mask; - break; - default: - BUG(); - break; - } - - return mask; -} - -/** - * ide_find_dma_mode - compute DMA speed - * @drive: IDE device - * @req_mode: requested mode - * - * Checks the drive/host capabilities and finds the speed to use for - * the DMA transfer. The speed is then limited by the requested mode. - * - * Returns 0 if the drive/host combination is incapable of DMA transfers - * or if the requested mode is not a DMA mode. - */ - -u8 ide_find_dma_mode(ide_drive_t *drive, u8 req_mode) -{ - ide_hwif_t *hwif = drive->hwif; - unsigned int mask; - int x, i; - u8 mode = 0; - - if (drive->media != ide_disk) { - if (hwif->host_flags & IDE_HFLAG_NO_ATAPI_DMA) - return 0; - } - - for (i = 0; i < ARRAY_SIZE(xfer_mode_bases); i++) { - if (req_mode < xfer_mode_bases[i]) - continue; - mask = ide_get_mode_mask(drive, xfer_mode_bases[i], req_mode); - x = fls(mask) - 1; - if (x >= 0) { - mode = xfer_mode_bases[i] + x; - break; - } - } - - if (hwif->chipset == ide_acorn && mode == 0) { - /* - * is this correct? - */ - if (ide_dma_good_drive(drive) && - drive->id[ATA_ID_EIDE_DMA_TIME] < 150) - mode = XFER_MW_DMA_1; - } - - mode = min(mode, req_mode); - - printk(KERN_INFO "%s: %s mode selected\n", drive->name, - mode ? ide_xfer_verbose(mode) : "no DMA"); - - return mode; -} - -static int ide_tune_dma(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 speed; - - if (ata_id_has_dma(drive->id) == 0 || - (drive->dev_flags & IDE_DFLAG_NODMA)) - return 0; - - /* consult the list of known "bad" drives */ - if (__ide_dma_bad_drive(drive)) - return 0; - - if (hwif->host_flags & IDE_HFLAG_TRUST_BIOS_FOR_DMA) - return config_drive_for_dma(drive); - - speed = ide_max_dma_mode(drive); - - if (!speed) - return 0; - - if (ide_set_dma_mode(drive, speed)) - return 0; - - return 1; -} - -static int ide_dma_check(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - - if (ide_tune_dma(drive)) - return 0; - - /* TODO: always do PIO fallback */ - if (hwif->host_flags & IDE_HFLAG_TRUST_BIOS_FOR_DMA) - return -1; - - ide_set_max_pio(drive); - - return -1; -} - -int ide_set_dma(ide_drive_t *drive) -{ - int rc; - - /* - * Force DMAing for the beginning of the check. - * Some chipsets appear to do interesting - * things, if not checked and cleared. - * PARANOIA!!! - */ - ide_dma_off_quietly(drive); - - rc = ide_dma_check(drive); - if (rc) - return rc; - - ide_dma_on(drive); - - return 0; -} - -void ide_check_dma_crc(ide_drive_t *drive) -{ - u8 mode; - - ide_dma_off_quietly(drive); - drive->crc_count = 0; - mode = drive->current_speed; - /* - * Don't try non Ultra-DMA modes without iCRC's. Force the - * device to PIO and make the user enable SWDMA/MWDMA modes. - */ - if (mode > XFER_UDMA_0 && mode <= XFER_UDMA_7) - mode--; - else - mode = XFER_PIO_4; - ide_set_xfer_rate(drive, mode); - if (drive->current_speed >= XFER_SW_DMA_0) - ide_dma_on(drive); -} - -void ide_dma_lost_irq(ide_drive_t *drive) -{ - printk(KERN_ERR "%s: DMA interrupt recovery\n", drive->name); -} -EXPORT_SYMBOL_GPL(ide_dma_lost_irq); - -/* - * un-busy the port etc, and clear any pending DMA status. we want to - * retry the current request in pio mode instead of risking tossing it - * all away - */ -ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_dma_ops *dma_ops = hwif->dma_ops; - struct ide_cmd *cmd = &hwif->cmd; - ide_startstop_t ret = ide_stopped; - - /* - * end current dma transaction - */ - - if (error < 0) { - printk(KERN_WARNING "%s: DMA timeout error\n", drive->name); - drive->waiting_for_dma = 0; - (void)dma_ops->dma_end(drive); - ide_dma_unmap_sg(drive, cmd); - ret = ide_error(drive, "dma timeout error", - hwif->tp_ops->read_status(hwif)); - } else { - printk(KERN_WARNING "%s: DMA timeout retry\n", drive->name); - if (dma_ops->dma_clear) - dma_ops->dma_clear(drive); - printk(KERN_ERR "%s: timeout waiting for DMA\n", drive->name); - if (dma_ops->dma_test_irq(drive) == 0) { - ide_dump_status(drive, "DMA timeout", - hwif->tp_ops->read_status(hwif)); - drive->waiting_for_dma = 0; - (void)dma_ops->dma_end(drive); - ide_dma_unmap_sg(drive, cmd); - } - } - - /* - * disable dma for now, but remember that we did so because of - * a timeout -- we'll reenable after we finish this next request - * (or rather the first chunk of it) in pio. - */ - drive->dev_flags |= IDE_DFLAG_DMA_PIO_RETRY; - drive->retry_pio++; - ide_dma_off_quietly(drive); - - /* - * make sure request is sane - */ - if (hwif->rq) - scsi_req(hwif->rq)->result = 0; - return ret; -} - -void ide_release_dma_engine(ide_hwif_t *hwif) -{ - if (hwif->dmatable_cpu) { - int prd_size = hwif->prd_max_nents * hwif->prd_ent_size; - - dma_free_coherent(hwif->dev, prd_size, - hwif->dmatable_cpu, hwif->dmatable_dma); - hwif->dmatable_cpu = NULL; - } -} -EXPORT_SYMBOL_GPL(ide_release_dma_engine); - -int ide_allocate_dma_engine(ide_hwif_t *hwif) -{ - int prd_size; - - if (hwif->prd_max_nents == 0) - hwif->prd_max_nents = PRD_ENTRIES; - if (hwif->prd_ent_size == 0) - hwif->prd_ent_size = PRD_BYTES; - - prd_size = hwif->prd_max_nents * hwif->prd_ent_size; - - hwif->dmatable_cpu = dma_alloc_coherent(hwif->dev, prd_size, - &hwif->dmatable_dma, - GFP_ATOMIC); - if (hwif->dmatable_cpu == NULL) { - printk(KERN_ERR "%s: unable to allocate PRD table\n", - hwif->name); - return -ENOMEM; - } - - return 0; -} -EXPORT_SYMBOL_GPL(ide_allocate_dma_engine); - -int ide_dma_prepare(ide_drive_t *drive, struct ide_cmd *cmd) -{ - const struct ide_dma_ops *dma_ops = drive->hwif->dma_ops; - - if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0 || - (dma_ops->dma_check && dma_ops->dma_check(drive, cmd))) - goto out; - ide_map_sg(drive, cmd); - if (ide_dma_map_sg(drive, cmd) == 0) - goto out_map; - if (dma_ops->dma_setup(drive, cmd)) - goto out_dma_unmap; - drive->waiting_for_dma = 1; - return 0; -out_dma_unmap: - ide_dma_unmap_sg(drive, cmd); -out_map: - ide_map_sg(drive, cmd); -out: - return 1; -} diff --git a/drivers/ide/ide-eh.c b/drivers/ide/ide-eh.c deleted file mode 100644 index 2f378213e9b5..000000000000 --- a/drivers/ide/ide-eh.c +++ /dev/null @@ -1,443 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only - -#include <linux/kernel.h> -#include <linux/export.h> -#include <linux/ide.h> -#include <linux/delay.h> - -static ide_startstop_t ide_ata_error(ide_drive_t *drive, struct request *rq, - u8 stat, u8 err) -{ - ide_hwif_t *hwif = drive->hwif; - - if ((stat & ATA_BUSY) || - ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) { - /* other bits are useless when BUSY */ - scsi_req(rq)->result |= ERROR_RESET; - } else if (stat & ATA_ERR) { - /* err has different meaning on cdrom and tape */ - if (err == ATA_ABORTED) { - if ((drive->dev_flags & IDE_DFLAG_LBA) && - /* some newer drives don't support ATA_CMD_INIT_DEV_PARAMS */ - hwif->tp_ops->read_status(hwif) == ATA_CMD_INIT_DEV_PARAMS) - return ide_stopped; - } else if ((err & BAD_CRC) == BAD_CRC) { - /* UDMA crc error, just retry the operation */ - drive->crc_count++; - } else if (err & (ATA_BBK | ATA_UNC)) { - /* retries won't help these */ - scsi_req(rq)->result = ERROR_MAX; - } else if (err & ATA_TRK0NF) { - /* help it find track zero */ - scsi_req(rq)->result |= ERROR_RECAL; - } - } - - if ((stat & ATA_DRQ) && rq_data_dir(rq) == READ && - (hwif->host_flags & IDE_HFLAG_ERROR_STOPS_FIFO) == 0) { - int nsect = drive->mult_count ? drive->mult_count : 1; - - ide_pad_transfer(drive, READ, nsect * SECTOR_SIZE); - } - - if (scsi_req(rq)->result >= ERROR_MAX || blk_noretry_request(rq)) { - ide_kill_rq(drive, rq); - return ide_stopped; - } - - if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ)) - scsi_req(rq)->result |= ERROR_RESET; - - if ((scsi_req(rq)->result & ERROR_RESET) == ERROR_RESET) { - ++scsi_req(rq)->result; - return ide_do_reset(drive); - } - - if ((scsi_req(rq)->result & ERROR_RECAL) == ERROR_RECAL) - drive->special_flags |= IDE_SFLAG_RECALIBRATE; - - ++scsi_req(rq)->result; - - return ide_stopped; -} - -static ide_startstop_t ide_atapi_error(ide_drive_t *drive, struct request *rq, - u8 stat, u8 err) -{ - ide_hwif_t *hwif = drive->hwif; - - if ((stat & ATA_BUSY) || - ((stat & ATA_DF) && (drive->dev_flags & IDE_DFLAG_NOWERR) == 0)) { - /* other bits are useless when BUSY */ - scsi_req(rq)->result |= ERROR_RESET; - } else { - /* add decoding error stuff */ - } - - if (hwif->tp_ops->read_status(hwif) & (ATA_BUSY | ATA_DRQ)) - /* force an abort */ - hwif->tp_ops->exec_command(hwif, ATA_CMD_IDLEIMMEDIATE); - - if (scsi_req(rq)->result >= ERROR_MAX) { - ide_kill_rq(drive, rq); - } else { - if ((scsi_req(rq)->result & ERROR_RESET) == ERROR_RESET) { - ++scsi_req(rq)->result; - return ide_do_reset(drive); - } - ++scsi_req(rq)->result; - } - - return ide_stopped; -} - -static ide_startstop_t __ide_error(ide_drive_t *drive, struct request *rq, - u8 stat, u8 err) -{ - if (drive->media == ide_disk) - return ide_ata_error(drive, rq, stat, err); - return ide_atapi_error(drive, rq, stat, err); -} - -/** - * ide_error - handle an error on the IDE - * @drive: drive the error occurred on - * @msg: message to report - * @stat: status bits - * - * ide_error() takes action based on the error returned by the drive. - * For normal I/O that may well include retries. We deal with - * both new-style (taskfile) and old style command handling here. - * In the case of taskfile command handling there is work left to - * do - */ - -ide_startstop_t ide_error(ide_drive_t *drive, const char *msg, u8 stat) -{ - struct request *rq; - u8 err; - - err = ide_dump_status(drive, msg, stat); - - rq = drive->hwif->rq; - if (rq == NULL) - return ide_stopped; - - /* retry only "normal" I/O: */ - if (blk_rq_is_passthrough(rq)) { - if (ata_taskfile_request(rq)) { - struct ide_cmd *cmd = ide_req(rq)->special; - - if (cmd) - ide_complete_cmd(drive, cmd, stat, err); - } else if (ata_pm_request(rq)) { - scsi_req(rq)->result = 1; - ide_complete_pm_rq(drive, rq); - return ide_stopped; - } - scsi_req(rq)->result = err; - ide_complete_rq(drive, err ? BLK_STS_IOERR : BLK_STS_OK, blk_rq_bytes(rq)); - return ide_stopped; - } - - return __ide_error(drive, rq, stat, err); -} -EXPORT_SYMBOL_GPL(ide_error); - -static inline void ide_complete_drive_reset(ide_drive_t *drive, blk_status_t err) -{ - struct request *rq = drive->hwif->rq; - - if (rq && ata_misc_request(rq) && - scsi_req(rq)->cmd[0] == REQ_DRIVE_RESET) { - if (err <= 0 && scsi_req(rq)->result == 0) - scsi_req(rq)->result = -EIO; - ide_complete_rq(drive, err, blk_rq_bytes(rq)); - } -} - -/* needed below */ -static ide_startstop_t do_reset1(ide_drive_t *, int); - -/* - * atapi_reset_pollfunc() gets invoked to poll the interface for completion - * every 50ms during an atapi drive reset operation. If the drive has not yet - * responded, and we have not yet hit our maximum waiting time, then the timer - * is restarted for another 50ms. - */ -static ide_startstop_t atapi_reset_pollfunc(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - u8 stat; - - tp_ops->dev_select(drive); - udelay(10); - stat = tp_ops->read_status(hwif); - - if (OK_STAT(stat, 0, ATA_BUSY)) - printk(KERN_INFO "%s: ATAPI reset complete\n", drive->name); - else { - if (time_before(jiffies, hwif->poll_timeout)) { - ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20); - /* continue polling */ - return ide_started; - } - /* end of polling */ - hwif->polling = 0; - printk(KERN_ERR "%s: ATAPI reset timed-out, status=0x%02x\n", - drive->name, stat); - /* do it the old fashioned way */ - return do_reset1(drive, 1); - } - /* done polling */ - hwif->polling = 0; - ide_complete_drive_reset(drive, BLK_STS_OK); - return ide_stopped; -} - -static void ide_reset_report_error(ide_hwif_t *hwif, u8 err) -{ - static const char *err_master_vals[] = - { NULL, "passed", "formatter device error", - "sector buffer error", "ECC circuitry error", - "controlling MPU error" }; - - u8 err_master = err & 0x7f; - - printk(KERN_ERR "%s: reset: master: ", hwif->name); - if (err_master && err_master < 6) - printk(KERN_CONT "%s", err_master_vals[err_master]); - else - printk(KERN_CONT "error (0x%02x?)", err); - if (err & 0x80) - printk(KERN_CONT "; slave: failed"); - printk(KERN_CONT "\n"); -} - -/* - * reset_pollfunc() gets invoked to poll the interface for completion every 50ms - * during an ide reset operation. If the drives have not yet responded, - * and we have not yet hit our maximum waiting time, then the timer is restarted - * for another 50ms. - */ -static ide_startstop_t reset_pollfunc(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_port_ops *port_ops = hwif->port_ops; - u8 tmp; - blk_status_t err = BLK_STS_OK; - - if (port_ops && port_ops->reset_poll) { - err = port_ops->reset_poll(drive); - if (err) { - printk(KERN_ERR "%s: host reset_poll failure for %s.\n", - hwif->name, drive->name); - goto out; - } - } - - tmp = hwif->tp_ops->read_status(hwif); - - if (!OK_STAT(tmp, 0, ATA_BUSY)) { - if (time_before(jiffies, hwif->poll_timeout)) { - ide_set_handler(drive, &reset_pollfunc, HZ/20); - /* continue polling */ - return ide_started; - } - printk(KERN_ERR "%s: reset timed-out, status=0x%02x\n", - hwif->name, tmp); - drive->failures++; - err = BLK_STS_IOERR; - } else { - tmp = ide_read_error(drive); - - if (tmp == 1) { - printk(KERN_INFO "%s: reset: success\n", hwif->name); - drive->failures = 0; - } else { - ide_reset_report_error(hwif, tmp); - drive->failures++; - err = BLK_STS_IOERR; - } - } -out: - hwif->polling = 0; /* done polling */ - ide_complete_drive_reset(drive, err); - return ide_stopped; -} - -static void ide_disk_pre_reset(ide_drive_t *drive) -{ - int legacy = (drive->id[ATA_ID_CFS_ENABLE_2] & 0x0400) ? 0 : 1; - - drive->special_flags = - legacy ? (IDE_SFLAG_SET_GEOMETRY | IDE_SFLAG_RECALIBRATE) : 0; - - drive->mult_count = 0; - drive->dev_flags &= ~IDE_DFLAG_PARKED; - - if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0 && - (drive->dev_flags & IDE_DFLAG_USING_DMA) == 0) - drive->mult_req = 0; - - if (drive->mult_req != drive->mult_count) - drive->special_flags |= IDE_SFLAG_SET_MULTMODE; -} - -static void pre_reset(ide_drive_t *drive) -{ - const struct ide_port_ops *port_ops = drive->hwif->port_ops; - - if (drive->media == ide_disk) - ide_disk_pre_reset(drive); - else - drive->dev_flags |= IDE_DFLAG_POST_RESET; - - if (drive->dev_flags & IDE_DFLAG_USING_DMA) { - if (drive->crc_count) - ide_check_dma_crc(drive); - else - ide_dma_off(drive); - } - - if ((drive->dev_flags & IDE_DFLAG_KEEP_SETTINGS) == 0) { - if ((drive->dev_flags & IDE_DFLAG_USING_DMA) == 0) { - drive->dev_flags &= ~IDE_DFLAG_UNMASK; - drive->io_32bit = 0; - } - return; - } - - if (port_ops && port_ops->pre_reset) - port_ops->pre_reset(drive); - - if (drive->current_speed != 0xff) - drive->desired_speed = drive->current_speed; - drive->current_speed = 0xff; -} - -/* - * do_reset1() attempts to recover a confused drive by resetting it. - * Unfortunately, resetting a disk drive actually resets all devices on - * the same interface, so it can really be thought of as resetting the - * interface rather than resetting the drive. - * - * ATAPI devices have their own reset mechanism which allows them to be - * individually reset without clobbering other devices on the same interface. - * - * Unfortunately, the IDE interface does not generate an interrupt to let - * us know when the reset operation has finished, so we must poll for this. - * Equally poor, though, is the fact that this may a very long time to complete, - * (up to 30 seconds worstcase). So, instead of busy-waiting here for it, - * we set a timer to poll at 50ms intervals. - */ -static ide_startstop_t do_reset1(ide_drive_t *drive, int do_not_try_atapi) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_io_ports *io_ports = &hwif->io_ports; - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - const struct ide_port_ops *port_ops; - ide_drive_t *tdrive; - unsigned long flags, timeout; - int i; - DEFINE_WAIT(wait); - - spin_lock_irqsave(&hwif->lock, flags); - - /* We must not reset with running handlers */ - BUG_ON(hwif->handler != NULL); - - /* For an ATAPI device, first try an ATAPI SRST. */ - if (drive->media != ide_disk && !do_not_try_atapi) { - pre_reset(drive); - tp_ops->dev_select(drive); - udelay(20); - tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET); - ndelay(400); - hwif->poll_timeout = jiffies + WAIT_WORSTCASE; - hwif->polling = 1; - __ide_set_handler(drive, &atapi_reset_pollfunc, HZ/20); - spin_unlock_irqrestore(&hwif->lock, flags); - return ide_started; - } - - /* We must not disturb devices in the IDE_DFLAG_PARKED state. */ - do { - unsigned long now; - - prepare_to_wait(&ide_park_wq, &wait, TASK_UNINTERRUPTIBLE); - timeout = jiffies; - ide_port_for_each_present_dev(i, tdrive, hwif) { - if ((tdrive->dev_flags & IDE_DFLAG_PARKED) && - time_after(tdrive->sleep, timeout)) - timeout = tdrive->sleep; - } - - now = jiffies; - if (time_before_eq(timeout, now)) - break; - - spin_unlock_irqrestore(&hwif->lock, flags); - timeout = schedule_timeout_uninterruptible(timeout - now); - spin_lock_irqsave(&hwif->lock, flags); - } while (timeout); - finish_wait(&ide_park_wq, &wait); - - /* - * First, reset any device state data we were maintaining - * for any of the drives on this interface. - */ - ide_port_for_each_dev(i, tdrive, hwif) - pre_reset(tdrive); - - if (io_ports->ctl_addr == 0) { - spin_unlock_irqrestore(&hwif->lock, flags); - ide_complete_drive_reset(drive, BLK_STS_IOERR); - return ide_stopped; - } - - /* - * Note that we also set nIEN while resetting the device, - * to mask unwanted interrupts from the interface during the reset. - * However, due to the design of PC hardware, this will cause an - * immediate interrupt due to the edge transition it produces. - * This single interrupt gives us a "fast poll" for drives that - * recover from reset very quickly, saving us the first 50ms wait time. - */ - /* set SRST and nIEN */ - tp_ops->write_devctl(hwif, ATA_SRST | ATA_NIEN | ATA_DEVCTL_OBS); - /* more than enough time */ - udelay(10); - /* clear SRST, leave nIEN (unless device is on the quirk list) */ - tp_ops->write_devctl(hwif, - ((drive->dev_flags & IDE_DFLAG_NIEN_QUIRK) ? 0 : ATA_NIEN) | - ATA_DEVCTL_OBS); - /* more than enough time */ - udelay(10); - hwif->poll_timeout = jiffies + WAIT_WORSTCASE; - hwif->polling = 1; - __ide_set_handler(drive, &reset_pollfunc, HZ/20); - - /* - * Some weird controller like resetting themselves to a strange - * state when the disks are reset this way. At least, the Winbond - * 553 documentation says that - */ - port_ops = hwif->port_ops; - if (port_ops && port_ops->resetproc) - port_ops->resetproc(drive); - - spin_unlock_irqrestore(&hwif->lock, flags); - return ide_started; -} - -/* - * ide_do_reset() is the entry point to the drive/interface reset code. - */ - -ide_startstop_t ide_do_reset(ide_drive_t *drive) -{ - return do_reset1(drive, 0); -} -EXPORT_SYMBOL(ide_do_reset); diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c deleted file mode 100644 index f5a2870aaf54..000000000000 --- a/drivers/ide/ide-floppy.c +++ /dev/null @@ -1,551 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * IDE ATAPI floppy driver. - * - * Copyright (C) 1996-1999 Gadi Oxman <gadio@netvision.net.il> - * Copyright (C) 2000-2002 Paul Bristow <paul@paulbristow.net> - * Copyright (C) 2005 Bartlomiej Zolnierkiewicz - * - * This driver supports the following IDE floppy drives: - * - * LS-120/240 SuperDisk - * Iomega Zip 100/250 - * Iomega PC Card Clik!/PocketZip - * - * For a historical changelog see - * Documentation/ide/ChangeLog.ide-floppy.1996-2002 - */ - -#include <linux/types.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/compat.h> -#include <linux/delay.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/major.h> -#include <linux/errno.h> -#include <linux/genhd.h> -#include <linux/cdrom.h> -#include <linux/ide.h> -#include <linux/hdreg.h> -#include <linux/bitops.h> -#include <linux/mutex.h> -#include <linux/scatterlist.h> - -#include <scsi/scsi_ioctl.h> - -#include <asm/byteorder.h> -#include <linux/uaccess.h> -#include <linux/io.h> -#include <asm/unaligned.h> - -#include "ide-floppy.h" - -/* - * After each failed packet command we issue a request sense command and retry - * the packet command IDEFLOPPY_MAX_PC_RETRIES times. - */ -#define IDEFLOPPY_MAX_PC_RETRIES 3 - -/* format capacities descriptor codes */ -#define CAPACITY_INVALID 0x00 -#define CAPACITY_UNFORMATTED 0x01 -#define CAPACITY_CURRENT 0x02 -#define CAPACITY_NO_CARTRIDGE 0x03 - -/* - * The following delay solves a problem with ATAPI Zip 100 drive where BSY bit - * was apparently being deasserted before the unit was ready to receive data. - */ -#define IDEFLOPPY_PC_DELAY (HZ/20) /* default delay for ZIP 100 (50ms) */ - -static int ide_floppy_callback(ide_drive_t *drive, int dsc) -{ - struct ide_disk_obj *floppy = drive->driver_data; - struct ide_atapi_pc *pc = drive->pc; - struct request *rq = pc->rq; - int uptodate = pc->error ? 0 : 1; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - if (drive->failed_pc == pc) - drive->failed_pc = NULL; - - if (pc->c[0] == GPCMD_READ_10 || pc->c[0] == GPCMD_WRITE_10 || - blk_rq_is_scsi(rq)) - uptodate = 1; /* FIXME */ - else if (pc->c[0] == GPCMD_REQUEST_SENSE) { - - u8 *buf = bio_data(rq->bio); - - if (!pc->error) { - floppy->sense_key = buf[2] & 0x0F; - floppy->asc = buf[12]; - floppy->ascq = buf[13]; - floppy->progress_indication = buf[15] & 0x80 ? - (u16)get_unaligned((u16 *)&buf[16]) : 0x10000; - - if (drive->failed_pc) - ide_debug_log(IDE_DBG_PC, "pc = %x", - drive->failed_pc->c[0]); - - ide_debug_log(IDE_DBG_SENSE, "sense key = %x, asc = %x," - "ascq = %x", floppy->sense_key, - floppy->asc, floppy->ascq); - } else - printk(KERN_ERR PFX "Error in REQUEST SENSE itself - " - "Aborting request!\n"); - } - - if (ata_misc_request(rq)) - scsi_req(rq)->result = uptodate ? 0 : IDE_DRV_ERROR_GENERAL; - - return uptodate; -} - -static void ide_floppy_report_error(struct ide_disk_obj *floppy, - struct ide_atapi_pc *pc) -{ - /* suppress error messages resulting from Medium not present */ - if (floppy->sense_key == 0x02 && - floppy->asc == 0x3a && - floppy->ascq == 0x00) - return; - - printk(KERN_ERR PFX "%s: I/O error, pc = %2x, key = %2x, " - "asc = %2x, ascq = %2x\n", - floppy->drive->name, pc->c[0], floppy->sense_key, - floppy->asc, floppy->ascq); - -} - -static ide_startstop_t ide_floppy_issue_pc(ide_drive_t *drive, - struct ide_cmd *cmd, - struct ide_atapi_pc *pc) -{ - struct ide_disk_obj *floppy = drive->driver_data; - - if (drive->failed_pc == NULL && - pc->c[0] != GPCMD_REQUEST_SENSE) - drive->failed_pc = pc; - - /* Set the current packet command */ - drive->pc = pc; - - if (pc->retries > IDEFLOPPY_MAX_PC_RETRIES) { - unsigned int done = blk_rq_bytes(drive->hwif->rq); - - if (!(pc->flags & PC_FLAG_SUPPRESS_ERROR)) - ide_floppy_report_error(floppy, pc); - - /* Giving up */ - pc->error = IDE_DRV_ERROR_GENERAL; - - drive->failed_pc = NULL; - drive->pc_callback(drive, 0); - ide_complete_rq(drive, BLK_STS_IOERR, done); - return ide_stopped; - } - - ide_debug_log(IDE_DBG_FUNC, "retry #%d", pc->retries); - - pc->retries++; - - return ide_issue_pc(drive, cmd); -} - -void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *pc) -{ - ide_init_pc(pc); - pc->c[0] = GPCMD_READ_FORMAT_CAPACITIES; - pc->c[7] = 255; - pc->c[8] = 255; - pc->req_xfer = 255; -} - -/* A mode sense command is used to "sense" floppy parameters. */ -void ide_floppy_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code) -{ - u16 length = 8; /* sizeof(Mode Parameter Header) = 8 Bytes */ - - ide_init_pc(pc); - pc->c[0] = GPCMD_MODE_SENSE_10; - pc->c[1] = 0; - pc->c[2] = page_code; - - switch (page_code) { - case IDEFLOPPY_CAPABILITIES_PAGE: - length += 12; - break; - case IDEFLOPPY_FLEXIBLE_DISK_PAGE: - length += 32; - break; - default: - printk(KERN_ERR PFX "unsupported page code in %s\n", __func__); - } - put_unaligned(cpu_to_be16(length), (u16 *) &pc->c[7]); - pc->req_xfer = length; -} - -static void idefloppy_create_rw_cmd(ide_drive_t *drive, - struct ide_atapi_pc *pc, struct request *rq, - unsigned long sector) -{ - struct ide_disk_obj *floppy = drive->driver_data; - int block = sector / floppy->bs_factor; - int blocks = blk_rq_sectors(rq) / floppy->bs_factor; - int cmd = rq_data_dir(rq); - - ide_debug_log(IDE_DBG_FUNC, "block: %d, blocks: %d", block, blocks); - - ide_init_pc(pc); - pc->c[0] = cmd == READ ? GPCMD_READ_10 : GPCMD_WRITE_10; - put_unaligned(cpu_to_be16(blocks), (unsigned short *)&pc->c[7]); - put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[2]); - - memcpy(scsi_req(rq)->cmd, pc->c, 12); - - pc->rq = rq; - if (cmd == WRITE) - pc->flags |= PC_FLAG_WRITING; - - pc->flags |= PC_FLAG_DMA_OK; -} - -static void idefloppy_blockpc_cmd(struct ide_disk_obj *floppy, - struct ide_atapi_pc *pc, struct request *rq) -{ - ide_init_pc(pc); - memcpy(pc->c, scsi_req(rq)->cmd, sizeof(pc->c)); - pc->rq = rq; - if (blk_rq_bytes(rq)) { - pc->flags |= PC_FLAG_DMA_OK; - if (rq_data_dir(rq) == WRITE) - pc->flags |= PC_FLAG_WRITING; - } -} - -static ide_startstop_t ide_floppy_do_request(ide_drive_t *drive, - struct request *rq, sector_t block) -{ - struct ide_disk_obj *floppy = drive->driver_data; - struct ide_cmd cmd; - struct ide_atapi_pc *pc; - - ide_debug_log(IDE_DBG_FUNC, "enter, cmd: 0x%x\n", rq->cmd[0]); - - if (drive->debug_mask & IDE_DBG_RQ) - blk_dump_rq_flags(rq, (rq->rq_disk - ? rq->rq_disk->disk_name - : "dev?")); - - if (scsi_req(rq)->result >= ERROR_MAX) { - if (drive->failed_pc) { - ide_floppy_report_error(floppy, drive->failed_pc); - drive->failed_pc = NULL; - } else - printk(KERN_ERR PFX "%s: I/O error\n", drive->name); - - if (ata_misc_request(rq)) { - scsi_req(rq)->result = 0; - ide_complete_rq(drive, BLK_STS_OK, blk_rq_bytes(rq)); - return ide_stopped; - } else - goto out_end; - } - - switch (req_op(rq)) { - default: - if (((long)blk_rq_pos(rq) % floppy->bs_factor) || - (blk_rq_sectors(rq) % floppy->bs_factor)) { - printk(KERN_ERR PFX "%s: unsupported r/w rq size\n", - drive->name); - goto out_end; - } - pc = &floppy->queued_pc; - idefloppy_create_rw_cmd(drive, pc, rq, (unsigned long)block); - break; - case REQ_OP_SCSI_IN: - case REQ_OP_SCSI_OUT: - pc = &floppy->queued_pc; - idefloppy_blockpc_cmd(floppy, pc, rq); - break; - case REQ_OP_DRV_IN: - case REQ_OP_DRV_OUT: - switch (ide_req(rq)->type) { - case ATA_PRIV_MISC: - case ATA_PRIV_SENSE: - pc = (struct ide_atapi_pc *)ide_req(rq)->special; - break; - default: - BUG(); - } - } - - ide_prep_sense(drive, rq); - - memset(&cmd, 0, sizeof(cmd)); - - if (rq_data_dir(rq)) - cmd.tf_flags |= IDE_TFLAG_WRITE; - - cmd.rq = rq; - - if (!blk_rq_is_passthrough(rq) || blk_rq_bytes(rq)) { - ide_init_sg_cmd(&cmd, blk_rq_bytes(rq)); - ide_map_sg(drive, &cmd); - } - - pc->rq = rq; - - return ide_floppy_issue_pc(drive, &cmd, pc); -out_end: - drive->failed_pc = NULL; - if (blk_rq_is_passthrough(rq) && scsi_req(rq)->result == 0) - scsi_req(rq)->result = -EIO; - ide_complete_rq(drive, BLK_STS_IOERR, blk_rq_bytes(rq)); - return ide_stopped; -} - -/* - * Look at the flexible disk page parameters. We ignore the CHS capacity - * parameters and use the LBA parameters instead. - */ -static int ide_floppy_get_flexible_disk_page(ide_drive_t *drive, - struct ide_atapi_pc *pc) -{ - struct ide_disk_obj *floppy = drive->driver_data; - struct gendisk *disk = floppy->disk; - u8 *page, buf[40]; - int capacity, lba_capacity; - u16 transfer_rate, sector_size, cyls, rpm; - u8 heads, sectors; - - ide_floppy_create_mode_sense_cmd(pc, IDEFLOPPY_FLEXIBLE_DISK_PAGE); - - if (ide_queue_pc_tail(drive, disk, pc, buf, pc->req_xfer)) { - printk(KERN_ERR PFX "Can't get flexible disk page params\n"); - return 1; - } - - if (buf[3] & 0x80) - drive->dev_flags |= IDE_DFLAG_WP; - else - drive->dev_flags &= ~IDE_DFLAG_WP; - - set_disk_ro(disk, !!(drive->dev_flags & IDE_DFLAG_WP)); - - page = &buf[8]; - - transfer_rate = be16_to_cpup((__be16 *)&buf[8 + 2]); - sector_size = be16_to_cpup((__be16 *)&buf[8 + 6]); - cyls = be16_to_cpup((__be16 *)&buf[8 + 8]); - rpm = be16_to_cpup((__be16 *)&buf[8 + 28]); - heads = buf[8 + 4]; - sectors = buf[8 + 5]; - - capacity = cyls * heads * sectors * sector_size; - - if (memcmp(page, &floppy->flexible_disk_page, 32)) - printk(KERN_INFO PFX "%s: %dkB, %d/%d/%d CHS, %d kBps, " - "%d sector size, %d rpm\n", - drive->name, capacity / 1024, cyls, heads, - sectors, transfer_rate / 8, sector_size, rpm); - - memcpy(&floppy->flexible_disk_page, page, 32); - drive->bios_cyl = cyls; - drive->bios_head = heads; - drive->bios_sect = sectors; - lba_capacity = floppy->blocks * floppy->block_size; - - if (capacity < lba_capacity) { - printk(KERN_NOTICE PFX "%s: The disk reports a capacity of %d " - "bytes, but the drive only handles %d\n", - drive->name, lba_capacity, capacity); - floppy->blocks = floppy->block_size ? - capacity / floppy->block_size : 0; - drive->capacity64 = floppy->blocks * floppy->bs_factor; - } - - return 0; -} - -/* - * Determine if a media is present in the floppy drive, and if so, its LBA - * capacity. - */ -static int ide_floppy_get_capacity(ide_drive_t *drive) -{ - struct ide_disk_obj *floppy = drive->driver_data; - struct gendisk *disk = floppy->disk; - struct ide_atapi_pc pc; - u8 *cap_desc; - u8 pc_buf[256], header_len, desc_cnt; - int i, rc = 1, blocks, length; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - drive->bios_cyl = 0; - drive->bios_head = drive->bios_sect = 0; - floppy->blocks = 0; - floppy->bs_factor = 1; - drive->capacity64 = 0; - - ide_floppy_create_read_capacity_cmd(&pc); - if (ide_queue_pc_tail(drive, disk, &pc, pc_buf, pc.req_xfer)) { - printk(KERN_ERR PFX "Can't get floppy parameters\n"); - return 1; - } - header_len = pc_buf[3]; - cap_desc = &pc_buf[4]; - desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ - - for (i = 0; i < desc_cnt; i++) { - unsigned int desc_start = 4 + i*8; - - blocks = be32_to_cpup((__be32 *)&pc_buf[desc_start]); - length = be16_to_cpup((__be16 *)&pc_buf[desc_start + 6]); - - ide_debug_log(IDE_DBG_PROBE, "Descriptor %d: %dkB, %d blocks, " - "%d sector size", - i, blocks * length / 1024, - blocks, length); - - if (i) - continue; - /* - * the code below is valid only for the 1st descriptor, ie i=0 - */ - - switch (pc_buf[desc_start + 4] & 0x03) { - /* Clik! drive returns this instead of CAPACITY_CURRENT */ - case CAPACITY_UNFORMATTED: - if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) - /* - * If it is not a clik drive, break out - * (maintains previous driver behaviour) - */ - break; - fallthrough; - case CAPACITY_CURRENT: - /* Normal Zip/LS-120 disks */ - if (memcmp(cap_desc, &floppy->cap_desc, 8)) - printk(KERN_INFO PFX "%s: %dkB, %d blocks, %d " - "sector size\n", - drive->name, blocks * length / 1024, - blocks, length); - memcpy(&floppy->cap_desc, cap_desc, 8); - - if (!length || length % 512) { - printk(KERN_NOTICE PFX "%s: %d bytes block size" - " not supported\n", drive->name, length); - } else { - floppy->blocks = blocks; - floppy->block_size = length; - floppy->bs_factor = length / 512; - if (floppy->bs_factor != 1) - printk(KERN_NOTICE PFX "%s: Warning: " - "non 512 bytes block size not " - "fully supported\n", - drive->name); - drive->capacity64 = - floppy->blocks * floppy->bs_factor; - rc = 0; - } - break; - case CAPACITY_NO_CARTRIDGE: - /* - * This is a KERN_ERR so it appears on screen - * for the user to see - */ - printk(KERN_ERR PFX "%s: No disk in drive\n", - drive->name); - break; - case CAPACITY_INVALID: - printk(KERN_ERR PFX "%s: Invalid capacity for disk " - "in drive\n", drive->name); - break; - } - ide_debug_log(IDE_DBG_PROBE, "Descriptor 0 Code: %d", - pc_buf[desc_start + 4] & 0x03); - } - - /* Clik! disk does not support get_flexible_disk_page */ - if (!(drive->atapi_flags & IDE_AFLAG_CLIK_DRIVE)) - (void) ide_floppy_get_flexible_disk_page(drive, &pc); - - return rc; -} - -static void ide_floppy_setup(ide_drive_t *drive) -{ - struct ide_disk_obj *floppy = drive->driver_data; - u16 *id = drive->id; - - drive->pc_callback = ide_floppy_callback; - - /* - * We used to check revisions here. At this point however I'm giving up. - * Just assume they are all broken, its easier. - * - * The actual reason for the workarounds was likely a driver bug after - * all rather than a firmware bug, and the workaround below used to hide - * it. It should be fixed as of version 1.9, but to be on the safe side - * we'll leave the limitation below for the 2.2.x tree. - */ - if (strstarts((char *)&id[ATA_ID_PROD], "IOMEGA ZIP 100 ATAPI")) { - drive->atapi_flags |= IDE_AFLAG_ZIP_DRIVE; - /* This value will be visible in the /proc/ide/hdx/settings */ - drive->pc_delay = IDEFLOPPY_PC_DELAY; - blk_queue_max_hw_sectors(drive->queue, 64); - } - - /* - * Guess what? The IOMEGA Clik! drive also needs the above fix. It makes - * nasty clicking noises without it, so please don't remove this. - */ - if (strstarts((char *)&id[ATA_ID_PROD], "IOMEGA Clik!")) { - blk_queue_max_hw_sectors(drive->queue, 64); - drive->atapi_flags |= IDE_AFLAG_CLIK_DRIVE; - /* IOMEGA Clik! drives do not support lock/unlock commands */ - drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; - } - - (void) ide_floppy_get_capacity(drive); - - ide_proc_register_driver(drive, floppy->driver); -} - -static void ide_floppy_flush(ide_drive_t *drive) -{ -} - -static int ide_floppy_init_media(ide_drive_t *drive, struct gendisk *disk) -{ - int ret = 0; - - if (ide_do_test_unit_ready(drive, disk)) - ide_do_start_stop(drive, disk, 1); - - ret = ide_floppy_get_capacity(drive); - - set_capacity(disk, ide_gd_capacity(drive)); - - return ret; -} - -const struct ide_disk_ops ide_atapi_disk_ops = { - .check = ide_check_atapi_device, - .get_capacity = ide_floppy_get_capacity, - .setup = ide_floppy_setup, - .flush = ide_floppy_flush, - .init_media = ide_floppy_init_media, - .set_doorlock = ide_set_media_lock, - .do_request = ide_floppy_do_request, - .ioctl = ide_floppy_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = ide_floppy_compat_ioctl, -#endif -}; diff --git a/drivers/ide/ide-floppy.h b/drivers/ide/ide-floppy.h deleted file mode 100644 index 8505a5f58f4e..000000000000 --- a/drivers/ide/ide-floppy.h +++ /dev/null @@ -1,42 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __IDE_FLOPPY_H -#define __IDE_FLOPPY_H - -#include "ide-gd.h" - -#ifdef CONFIG_IDE_GD_ATAPI -/* - * Pages of the SELECT SENSE / MODE SENSE packet commands. - * See SFF-8070i spec. - */ -#define IDEFLOPPY_CAPABILITIES_PAGE 0x1b -#define IDEFLOPPY_FLEXIBLE_DISK_PAGE 0x05 - -/* IOCTLs used in low-level formatting. */ -#define IDEFLOPPY_IOCTL_FORMAT_SUPPORTED 0x4600 -#define IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY 0x4601 -#define IDEFLOPPY_IOCTL_FORMAT_START 0x4602 -#define IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS 0x4603 - -/* ide-floppy.c */ -extern const struct ide_disk_ops ide_atapi_disk_ops; -void ide_floppy_create_mode_sense_cmd(struct ide_atapi_pc *, u8); -void ide_floppy_create_read_capacity_cmd(struct ide_atapi_pc *); - -/* ide-floppy_ioctl.c */ -int ide_floppy_ioctl(ide_drive_t *, struct block_device *, fmode_t, - unsigned int, unsigned long); -int ide_floppy_compat_ioctl(ide_drive_t *, struct block_device *, fmode_t, - unsigned int, unsigned long); - -#ifdef CONFIG_IDE_PROC_FS -/* ide-floppy_proc.c */ -extern ide_proc_entry_t ide_floppy_proc[]; -extern const struct ide_proc_devset ide_floppy_settings[]; -#endif -#else -#define ide_floppy_proc NULL -#define ide_floppy_settings NULL -#endif - -#endif /*__IDE_FLOPPY_H */ diff --git a/drivers/ide/ide-floppy_ioctl.c b/drivers/ide/ide-floppy_ioctl.c deleted file mode 100644 index 39a790ac6cc3..000000000000 --- a/drivers/ide/ide-floppy_ioctl.c +++ /dev/null @@ -1,339 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * ide-floppy IOCTLs handling. - */ - -#include <linux/kernel.h> -#include <linux/ide.h> -#include <linux/compat.h> -#include <linux/cdrom.h> -#include <linux/mutex.h> - -#include <asm/unaligned.h> - -#include <scsi/scsi_ioctl.h> - -#include "ide-floppy.h" - -/* - * Obtain the list of formattable capacities. - * Very similar to ide_floppy_get_capacity, except that we push the capacity - * descriptors to userland, instead of our own structures. - * - * Userland gives us the following structure: - * - * struct idefloppy_format_capacities { - * int nformats; - * struct { - * int nblocks; - * int blocksize; - * } formats[]; - * }; - * - * userland initializes nformats to the number of allocated formats[] records. - * On exit we set nformats to the number of records we've actually initialized. - */ - -static DEFINE_MUTEX(ide_floppy_ioctl_mutex); -static int ide_floppy_get_format_capacities(ide_drive_t *drive, - struct ide_atapi_pc *pc, - int __user *arg) -{ - struct ide_disk_obj *floppy = drive->driver_data; - int i, blocks, length, u_array_size, u_index; - int __user *argp; - u8 pc_buf[256], header_len, desc_cnt; - - if (get_user(u_array_size, arg)) - return -EFAULT; - - if (u_array_size <= 0) - return -EINVAL; - - ide_floppy_create_read_capacity_cmd(pc); - - if (ide_queue_pc_tail(drive, floppy->disk, pc, pc_buf, pc->req_xfer)) { - printk(KERN_ERR "ide-floppy: Can't get floppy parameters\n"); - return -EIO; - } - - header_len = pc_buf[3]; - desc_cnt = header_len / 8; /* capacity descriptor of 8 bytes */ - - u_index = 0; - argp = arg + 1; - - /* - * We always skip the first capacity descriptor. That's the current - * capacity. We are interested in the remaining descriptors, the - * formattable capacities. - */ - for (i = 1; i < desc_cnt; i++) { - unsigned int desc_start = 4 + i*8; - - if (u_index >= u_array_size) - break; /* User-supplied buffer too small */ - - blocks = be32_to_cpup((__be32 *)&pc_buf[desc_start]); - length = be16_to_cpup((__be16 *)&pc_buf[desc_start + 6]); - - if (put_user(blocks, argp)) - return -EFAULT; - - ++argp; - - if (put_user(length, argp)) - return -EFAULT; - - ++argp; - - ++u_index; - } - - if (put_user(u_index, arg)) - return -EFAULT; - - return 0; -} - -static void ide_floppy_create_format_unit_cmd(struct ide_atapi_pc *pc, - u8 *buf, int b, int l, - int flags) -{ - ide_init_pc(pc); - pc->c[0] = GPCMD_FORMAT_UNIT; - pc->c[1] = 0x17; - - memset(buf, 0, 12); - buf[1] = 0xA2; - /* Default format list header, u8 1: FOV/DCRT/IMM bits set */ - - if (flags & 1) /* Verify bit on... */ - buf[1] ^= 0x20; /* ... turn off DCRT bit */ - buf[3] = 8; - - put_unaligned(cpu_to_be32(b), (unsigned int *)(&buf[4])); - put_unaligned(cpu_to_be32(l), (unsigned int *)(&buf[8])); - pc->req_xfer = 12; - pc->flags |= PC_FLAG_WRITING; -} - -static int ide_floppy_get_sfrp_bit(ide_drive_t *drive, struct ide_atapi_pc *pc) -{ - struct ide_disk_obj *floppy = drive->driver_data; - u8 buf[20]; - - drive->atapi_flags &= ~IDE_AFLAG_SRFP; - - ide_floppy_create_mode_sense_cmd(pc, IDEFLOPPY_CAPABILITIES_PAGE); - pc->flags |= PC_FLAG_SUPPRESS_ERROR; - - if (ide_queue_pc_tail(drive, floppy->disk, pc, buf, pc->req_xfer)) - return 1; - - if (buf[8 + 2] & 0x40) - drive->atapi_flags |= IDE_AFLAG_SRFP; - - return 0; -} - -static int ide_floppy_format_unit(ide_drive_t *drive, struct ide_atapi_pc *pc, - int __user *arg) -{ - struct ide_disk_obj *floppy = drive->driver_data; - u8 buf[12]; - int blocks, length, flags, err = 0; - - if (floppy->openers > 1) { - /* Don't format if someone is using the disk */ - drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS; - return -EBUSY; - } - - drive->dev_flags |= IDE_DFLAG_FORMAT_IN_PROGRESS; - - /* - * Send ATAPI_FORMAT_UNIT to the drive. - * - * Userland gives us the following structure: - * - * struct idefloppy_format_command { - * int nblocks; - * int blocksize; - * int flags; - * } ; - * - * flags is a bitmask, currently, the only defined flag is: - * - * 0x01 - verify media after format. - */ - if (get_user(blocks, arg) || - get_user(length, arg+1) || - get_user(flags, arg+2)) { - err = -EFAULT; - goto out; - } - - ide_floppy_get_sfrp_bit(drive, pc); - ide_floppy_create_format_unit_cmd(pc, buf, blocks, length, flags); - - if (ide_queue_pc_tail(drive, floppy->disk, pc, buf, pc->req_xfer)) - err = -EIO; - -out: - if (err) - drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS; - return err; -} - -/* - * Get ATAPI_FORMAT_UNIT progress indication. - * - * Userland gives a pointer to an int. The int is set to a progress - * indicator 0-65536, with 65536=100%. - * - * If the drive does not support format progress indication, we just check - * the dsc bit, and return either 0 or 65536. - */ - -static int ide_floppy_get_format_progress(ide_drive_t *drive, - struct ide_atapi_pc *pc, - int __user *arg) -{ - struct ide_disk_obj *floppy = drive->driver_data; - u8 sense_buf[18]; - int progress_indication = 0x10000; - - if (drive->atapi_flags & IDE_AFLAG_SRFP) { - ide_create_request_sense_cmd(drive, pc); - if (ide_queue_pc_tail(drive, floppy->disk, pc, sense_buf, - pc->req_xfer)) - return -EIO; - - if (floppy->sense_key == 2 && - floppy->asc == 4 && - floppy->ascq == 4) - progress_indication = floppy->progress_indication; - - /* Else assume format_unit has finished, and we're at 0x10000 */ - } else { - ide_hwif_t *hwif = drive->hwif; - unsigned long flags; - u8 stat; - - local_irq_save(flags); - stat = hwif->tp_ops->read_status(hwif); - local_irq_restore(flags); - - progress_indication = ((stat & ATA_DSC) == 0) ? 0 : 0x10000; - } - - if (put_user(progress_indication, arg)) - return -EFAULT; - - return 0; -} - -static int ide_floppy_lockdoor(ide_drive_t *drive, struct ide_atapi_pc *pc, - unsigned long arg, unsigned int cmd) -{ - struct ide_disk_obj *floppy = drive->driver_data; - struct gendisk *disk = floppy->disk; - int prevent = (arg && cmd != CDROMEJECT) ? 1 : 0; - - if (floppy->openers > 1) - return -EBUSY; - - ide_set_media_lock(drive, disk, prevent); - - if (cmd == CDROMEJECT) - ide_do_start_stop(drive, disk, 2); - - return 0; -} - -static int ide_floppy_format_ioctl(ide_drive_t *drive, struct ide_atapi_pc *pc, - fmode_t mode, unsigned int cmd, - void __user *argp) -{ - switch (cmd) { - case IDEFLOPPY_IOCTL_FORMAT_SUPPORTED: - return 0; - case IDEFLOPPY_IOCTL_FORMAT_GET_CAPACITY: - return ide_floppy_get_format_capacities(drive, pc, argp); - case IDEFLOPPY_IOCTL_FORMAT_START: - if (!(mode & FMODE_WRITE)) - return -EPERM; - return ide_floppy_format_unit(drive, pc, (int __user *)argp); - case IDEFLOPPY_IOCTL_FORMAT_GET_PROGRESS: - return ide_floppy_get_format_progress(drive, pc, argp); - default: - return -ENOTTY; - } -} - -int ide_floppy_ioctl(ide_drive_t *drive, struct block_device *bdev, - fmode_t mode, unsigned int cmd, unsigned long arg) -{ - struct ide_atapi_pc pc; - void __user *argp = (void __user *)arg; - int err; - - mutex_lock(&ide_floppy_ioctl_mutex); - if (cmd == CDROMEJECT || cmd == CDROM_LOCKDOOR) { - err = ide_floppy_lockdoor(drive, &pc, arg, cmd); - goto out; - } - - err = ide_floppy_format_ioctl(drive, &pc, mode, cmd, argp); - if (err != -ENOTTY) - goto out; - - /* - * skip SCSI_IOCTL_SEND_COMMAND (deprecated) - * and CDROM_SEND_PACKET (legacy) ioctls - */ - if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND) - err = scsi_cmd_blk_ioctl(bdev, mode, cmd, argp); - - if (err == -ENOTTY) - err = generic_ide_ioctl(drive, bdev, cmd, arg); - -out: - mutex_unlock(&ide_floppy_ioctl_mutex); - return err; -} - -#ifdef CONFIG_COMPAT -int ide_floppy_compat_ioctl(ide_drive_t *drive, struct block_device *bdev, - fmode_t mode, unsigned int cmd, unsigned long arg) -{ - struct ide_atapi_pc pc; - void __user *argp = compat_ptr(arg); - int err; - - mutex_lock(&ide_floppy_ioctl_mutex); - if (cmd == CDROMEJECT || cmd == CDROM_LOCKDOOR) { - err = ide_floppy_lockdoor(drive, &pc, arg, cmd); - goto out; - } - - err = ide_floppy_format_ioctl(drive, &pc, mode, cmd, argp); - if (err != -ENOTTY) - goto out; - - /* - * skip SCSI_IOCTL_SEND_COMMAND (deprecated) - * and CDROM_SEND_PACKET (legacy) ioctls - */ - if (cmd != CDROM_SEND_PACKET && cmd != SCSI_IOCTL_SEND_COMMAND) - err = scsi_cmd_blk_ioctl(bdev, mode, cmd, argp); - - if (err == -ENOTTY) - err = generic_ide_ioctl(drive, bdev, cmd, arg); - -out: - mutex_unlock(&ide_floppy_ioctl_mutex); - return err; -} -#endif diff --git a/drivers/ide/ide-floppy_proc.c b/drivers/ide/ide-floppy_proc.c deleted file mode 100644 index 7f697ddb5fe5..000000000000 --- a/drivers/ide/ide-floppy_proc.c +++ /dev/null @@ -1,34 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/kernel.h> -#include <linux/export.h> -#include <linux/ide.h> -#include <linux/seq_file.h> - -#include "ide-floppy.h" - -static int idefloppy_capacity_proc_show(struct seq_file *m, void *v) -{ - ide_drive_t*drive = (ide_drive_t *)m->private; - - seq_printf(m, "%llu\n", (long long)ide_gd_capacity(drive)); - return 0; -} - -ide_proc_entry_t ide_floppy_proc[] = { - { "capacity", S_IFREG|S_IRUGO, idefloppy_capacity_proc_show }, - { "geometry", S_IFREG|S_IRUGO, ide_geometry_proc_show }, - {} -}; - -ide_devset_rw_field(bios_cyl, bios_cyl); -ide_devset_rw_field(bios_head, bios_head); -ide_devset_rw_field(bios_sect, bios_sect); -ide_devset_rw_field(ticks, pc_delay); - -const struct ide_proc_devset ide_floppy_settings[] = { - IDE_PROC_DEVSET(bios_cyl, 0, 1023), - IDE_PROC_DEVSET(bios_head, 0, 255), - IDE_PROC_DEVSET(bios_sect, 0, 63), - IDE_PROC_DEVSET(ticks, 0, 255), - { NULL }, -}; diff --git a/drivers/ide/ide-gd.c b/drivers/ide/ide-gd.c deleted file mode 100644 index e2b6c82586ce..000000000000 --- a/drivers/ide/ide-gd.c +++ /dev/null @@ -1,432 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -#include <linux/module.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/genhd.h> -#include <linux/mutex.h> -#include <linux/ide.h> -#include <linux/hdreg.h> -#include <linux/dmi.h> -#include <linux/slab.h> - -#if !defined(CONFIG_DEBUG_BLOCK_EXT_DEVT) -#define IDE_DISK_MINORS (1 << PARTN_BITS) -#else -#define IDE_DISK_MINORS 0 -#endif - -#include "ide-disk.h" -#include "ide-floppy.h" - -#define IDE_GD_VERSION "1.18" - -/* module parameters */ -static DEFINE_MUTEX(ide_gd_mutex); -static unsigned long debug_mask; -module_param(debug_mask, ulong, 0644); - -static DEFINE_MUTEX(ide_disk_ref_mutex); - -static void ide_disk_release(struct device *); - -static struct ide_disk_obj *ide_disk_get(struct gendisk *disk) -{ - struct ide_disk_obj *idkp = NULL; - - mutex_lock(&ide_disk_ref_mutex); - idkp = ide_drv_g(disk, ide_disk_obj); - if (idkp) { - if (ide_device_get(idkp->drive)) - idkp = NULL; - else - get_device(&idkp->dev); - } - mutex_unlock(&ide_disk_ref_mutex); - return idkp; -} - -static void ide_disk_put(struct ide_disk_obj *idkp) -{ - ide_drive_t *drive = idkp->drive; - - mutex_lock(&ide_disk_ref_mutex); - put_device(&idkp->dev); - ide_device_put(drive); - mutex_unlock(&ide_disk_ref_mutex); -} - -sector_t ide_gd_capacity(ide_drive_t *drive) -{ - return drive->capacity64; -} - -static int ide_gd_probe(ide_drive_t *); - -static void ide_gd_remove(ide_drive_t *drive) -{ - struct ide_disk_obj *idkp = drive->driver_data; - struct gendisk *g = idkp->disk; - - ide_proc_unregister_driver(drive, idkp->driver); - device_del(&idkp->dev); - del_gendisk(g); - drive->disk_ops->flush(drive); - - mutex_lock(&ide_disk_ref_mutex); - put_device(&idkp->dev); - mutex_unlock(&ide_disk_ref_mutex); -} - -static void ide_disk_release(struct device *dev) -{ - struct ide_disk_obj *idkp = to_ide_drv(dev, ide_disk_obj); - ide_drive_t *drive = idkp->drive; - struct gendisk *g = idkp->disk; - - drive->disk_ops = NULL; - drive->driver_data = NULL; - g->private_data = NULL; - put_disk(g); - kfree(idkp); -} - -/* - * On HPA drives the capacity needs to be - * reinitialized on resume otherwise the disk - * can not be used and a hard reset is required - */ -static void ide_gd_resume(ide_drive_t *drive) -{ - if (ata_id_hpa_enabled(drive->id)) - (void)drive->disk_ops->get_capacity(drive); -} - -static const struct dmi_system_id ide_coldreboot_table[] = { - { - /* Acer TravelMate 66x cuts power during reboot */ - .ident = "Acer TravelMate 660", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Acer"), - DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 660"), - }, - }, - - { } /* terminate list */ -}; - -static void ide_gd_shutdown(ide_drive_t *drive) -{ -#ifdef CONFIG_ALPHA - /* On Alpha, halt(8) doesn't actually turn the machine off, - it puts you into the sort of firmware monitor. Typically, - it's used to boot another kernel image, so it's not much - different from reboot(8). Therefore, we don't need to - spin down the disk in this case, especially since Alpha - firmware doesn't handle disks in standby mode properly. - On the other hand, it's reasonably safe to turn the power - off when the shutdown process reaches the firmware prompt, - as the firmware initialization takes rather long time - - at least 10 seconds, which should be sufficient for - the disk to expire its write cache. */ - if (system_state != SYSTEM_POWER_OFF) { -#else - if (system_state == SYSTEM_RESTART && - !dmi_check_system(ide_coldreboot_table)) { -#endif - drive->disk_ops->flush(drive); - return; - } - - printk(KERN_INFO "Shutdown: %s\n", drive->name); - - drive->gendev.bus->suspend(&drive->gendev, PMSG_SUSPEND); -} - -#ifdef CONFIG_IDE_PROC_FS -static ide_proc_entry_t *ide_disk_proc_entries(ide_drive_t *drive) -{ - return (drive->media == ide_disk) ? ide_disk_proc : ide_floppy_proc; -} - -static const struct ide_proc_devset *ide_disk_proc_devsets(ide_drive_t *drive) -{ - return (drive->media == ide_disk) ? ide_disk_settings - : ide_floppy_settings; -} -#endif - -static ide_startstop_t ide_gd_do_request(ide_drive_t *drive, - struct request *rq, sector_t sector) -{ - return drive->disk_ops->do_request(drive, rq, sector); -} - -static struct ide_driver ide_gd_driver = { - .gen_driver = { - .owner = THIS_MODULE, - .name = "ide-gd", - .bus = &ide_bus_type, - }, - .probe = ide_gd_probe, - .remove = ide_gd_remove, - .resume = ide_gd_resume, - .shutdown = ide_gd_shutdown, - .version = IDE_GD_VERSION, - .do_request = ide_gd_do_request, -#ifdef CONFIG_IDE_PROC_FS - .proc_entries = ide_disk_proc_entries, - .proc_devsets = ide_disk_proc_devsets, -#endif -}; - -static int ide_gd_open(struct block_device *bdev, fmode_t mode) -{ - struct gendisk *disk = bdev->bd_disk; - struct ide_disk_obj *idkp; - ide_drive_t *drive; - int ret = 0; - - idkp = ide_disk_get(disk); - if (idkp == NULL) - return -ENXIO; - - drive = idkp->drive; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - idkp->openers++; - - if ((drive->dev_flags & IDE_DFLAG_REMOVABLE) && idkp->openers == 1) { - drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS; - /* Just in case */ - - ret = drive->disk_ops->init_media(drive, disk); - - /* - * Allow O_NDELAY to open a drive without a disk, or with an - * unreadable disk, so that we can get the format capacity - * of the drive or begin the format - Sam - */ - if (ret && (mode & FMODE_NDELAY) == 0) { - ret = -EIO; - goto out_put_idkp; - } - - if ((drive->dev_flags & IDE_DFLAG_WP) && (mode & FMODE_WRITE)) { - ret = -EROFS; - goto out_put_idkp; - } - - /* - * Ignore the return code from door_lock, - * since the open() has already succeeded, - * and the door_lock is irrelevant at this point. - */ - drive->disk_ops->set_doorlock(drive, disk, 1); - if (__invalidate_device(bdev, true)) - pr_warn("VFS: busy inodes on changed media %s\n", - bdev->bd_disk->disk_name); - drive->disk_ops->get_capacity(drive); - set_capacity(disk, ide_gd_capacity(drive)); - set_bit(GD_NEED_PART_SCAN, &disk->state); - } else if (drive->dev_flags & IDE_DFLAG_FORMAT_IN_PROGRESS) { - ret = -EBUSY; - goto out_put_idkp; - } - return 0; - -out_put_idkp: - idkp->openers--; - ide_disk_put(idkp); - return ret; -} - -static int ide_gd_unlocked_open(struct block_device *bdev, fmode_t mode) -{ - int ret; - - mutex_lock(&ide_gd_mutex); - ret = ide_gd_open(bdev, mode); - mutex_unlock(&ide_gd_mutex); - - return ret; -} - - -static void ide_gd_release(struct gendisk *disk, fmode_t mode) -{ - struct ide_disk_obj *idkp = ide_drv_g(disk, ide_disk_obj); - ide_drive_t *drive = idkp->drive; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - mutex_lock(&ide_gd_mutex); - if (idkp->openers == 1) - drive->disk_ops->flush(drive); - - if ((drive->dev_flags & IDE_DFLAG_REMOVABLE) && idkp->openers == 1) { - drive->disk_ops->set_doorlock(drive, disk, 0); - drive->dev_flags &= ~IDE_DFLAG_FORMAT_IN_PROGRESS; - } - - idkp->openers--; - - ide_disk_put(idkp); - mutex_unlock(&ide_gd_mutex); -} - -static int ide_gd_getgeo(struct block_device *bdev, struct hd_geometry *geo) -{ - struct ide_disk_obj *idkp = ide_drv_g(bdev->bd_disk, ide_disk_obj); - ide_drive_t *drive = idkp->drive; - - geo->heads = drive->bios_head; - geo->sectors = drive->bios_sect; - geo->cylinders = (u16)drive->bios_cyl; /* truncate */ - return 0; -} - -static void ide_gd_unlock_native_capacity(struct gendisk *disk) -{ - struct ide_disk_obj *idkp = ide_drv_g(disk, ide_disk_obj); - ide_drive_t *drive = idkp->drive; - const struct ide_disk_ops *disk_ops = drive->disk_ops; - - if (disk_ops->unlock_native_capacity) - disk_ops->unlock_native_capacity(drive); -} - -static int ide_gd_ioctl(struct block_device *bdev, fmode_t mode, - unsigned int cmd, unsigned long arg) -{ - struct ide_disk_obj *idkp = ide_drv_g(bdev->bd_disk, ide_disk_obj); - ide_drive_t *drive = idkp->drive; - - return drive->disk_ops->ioctl(drive, bdev, mode, cmd, arg); -} - -#ifdef CONFIG_COMPAT -static int ide_gd_compat_ioctl(struct block_device *bdev, fmode_t mode, - unsigned int cmd, unsigned long arg) -{ - struct ide_disk_obj *idkp = ide_drv_g(bdev->bd_disk, ide_disk_obj); - ide_drive_t *drive = idkp->drive; - - if (!drive->disk_ops->compat_ioctl) - return -ENOIOCTLCMD; - - return drive->disk_ops->compat_ioctl(drive, bdev, mode, cmd, arg); -} -#endif - -static const struct block_device_operations ide_gd_ops = { - .owner = THIS_MODULE, - .open = ide_gd_unlocked_open, - .release = ide_gd_release, - .ioctl = ide_gd_ioctl, -#ifdef CONFIG_COMPAT - .compat_ioctl = ide_gd_compat_ioctl, -#endif - .getgeo = ide_gd_getgeo, - .unlock_native_capacity = ide_gd_unlock_native_capacity, -}; - -static int ide_gd_probe(ide_drive_t *drive) -{ - const struct ide_disk_ops *disk_ops = NULL; - struct ide_disk_obj *idkp; - struct gendisk *g; - - /* strstr("foo", "") is non-NULL */ - if (!strstr("ide-gd", drive->driver_req)) - goto failed; - -#ifdef CONFIG_IDE_GD_ATA - if (drive->media == ide_disk) - disk_ops = &ide_ata_disk_ops; -#endif -#ifdef CONFIG_IDE_GD_ATAPI - if (drive->media == ide_floppy) - disk_ops = &ide_atapi_disk_ops; -#endif - if (disk_ops == NULL) - goto failed; - - if (disk_ops->check(drive, DRV_NAME) == 0) { - printk(KERN_ERR PFX "%s: not supported by this driver\n", - drive->name); - goto failed; - } - - idkp = kzalloc(sizeof(*idkp), GFP_KERNEL); - if (!idkp) { - printk(KERN_ERR PFX "%s: can't allocate a disk structure\n", - drive->name); - goto failed; - } - - g = alloc_disk_node(IDE_DISK_MINORS, hwif_to_node(drive->hwif)); - if (!g) - goto out_free_idkp; - - ide_init_disk(g, drive); - - idkp->dev.parent = &drive->gendev; - idkp->dev.release = ide_disk_release; - dev_set_name(&idkp->dev, "%s", dev_name(&drive->gendev)); - - if (device_register(&idkp->dev)) - goto out_free_disk; - - idkp->drive = drive; - idkp->driver = &ide_gd_driver; - idkp->disk = g; - - g->private_data = &idkp->driver; - - drive->driver_data = idkp; - drive->debug_mask = debug_mask; - drive->disk_ops = disk_ops; - - disk_ops->setup(drive); - - set_capacity(g, ide_gd_capacity(drive)); - - g->minors = IDE_DISK_MINORS; - g->flags |= GENHD_FL_EXT_DEVT; - if (drive->dev_flags & IDE_DFLAG_REMOVABLE) - g->flags = GENHD_FL_REMOVABLE; - g->fops = &ide_gd_ops; - g->events = DISK_EVENT_MEDIA_CHANGE; - device_add_disk(&drive->gendev, g, NULL); - return 0; - -out_free_disk: - put_disk(g); -out_free_idkp: - kfree(idkp); -failed: - return -ENODEV; -} - -static int __init ide_gd_init(void) -{ - printk(KERN_INFO DRV_NAME " driver " IDE_GD_VERSION "\n"); - return driver_register(&ide_gd_driver.gen_driver); -} - -static void __exit ide_gd_exit(void) -{ - driver_unregister(&ide_gd_driver.gen_driver); -} - -MODULE_ALIAS("ide:*m-disk*"); -MODULE_ALIAS("ide-disk"); -MODULE_ALIAS("ide:*m-floppy*"); -MODULE_ALIAS("ide-floppy"); -module_init(ide_gd_init); -module_exit(ide_gd_exit); -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("generic ATA/ATAPI disk driver"); diff --git a/drivers/ide/ide-gd.h b/drivers/ide/ide-gd.h deleted file mode 100644 index af3fe1880e9e..000000000000 --- a/drivers/ide/ide-gd.h +++ /dev/null @@ -1,43 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __IDE_GD_H -#define __IDE_GD_H - -#define DRV_NAME "ide-gd" -#define PFX DRV_NAME ": " - -/* define to see debug info */ -#define IDE_GD_DEBUG_LOG 0 - -#if IDE_GD_DEBUG_LOG -#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, ## args) -#else -#define ide_debug_log(lvl, fmt, args...) do {} while (0) -#endif - -struct ide_disk_obj { - ide_drive_t *drive; - struct ide_driver *driver; - struct gendisk *disk; - struct device dev; - unsigned int openers; /* protected by BKL for now */ - - /* used for blk_{fs,pc}_request() requests */ - struct ide_atapi_pc queued_pc; - - /* Last error information */ - u8 sense_key, asc, ascq; - - int progress_indication; - - /* Device information */ - /* Current format */ - int blocks, block_size, bs_factor; - /* Last format capacity descriptor */ - u8 cap_desc[8]; - /* Copy of the flexible disk page */ - u8 flexible_disk_page[32]; -}; - -sector_t ide_gd_capacity(ide_drive_t *); - -#endif /* __IDE_GD_H */ diff --git a/drivers/ide/ide-generic.c b/drivers/ide/ide-generic.c deleted file mode 100644 index 80c0d69b83ac..000000000000 --- a/drivers/ide/ide-generic.c +++ /dev/null @@ -1,139 +0,0 @@ -/* - * generic/default IDE host driver - * - * Copyright (C) 2004, 2008-2009 Bartlomiej Zolnierkiewicz - * This code was split off from ide.c. See it for original copyrights. - * - * May be copied or modified under the terms of the GNU General Public License. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/ide.h> -#include <linux/pci_ids.h> - -/* FIXME: convert arm to use ide_platform host driver */ -#ifdef CONFIG_ARM -#include <asm/irq.h> -#endif - -#define DRV_NAME "ide_generic" - -static int probe_mask; -module_param(probe_mask, int, 0); -MODULE_PARM_DESC(probe_mask, "probe mask for legacy ISA IDE ports"); - -static const struct ide_port_info ide_generic_port_info = { - .host_flags = IDE_HFLAG_NO_DMA, - .chipset = ide_generic, -}; - -#ifdef CONFIG_ARM -static const u16 legacy_bases[] = { 0x1f0 }; -static const int legacy_irqs[] = { IRQ_HARDDISK }; -#elif defined(CONFIG_ALPHA) -static const u16 legacy_bases[] = { 0x1f0, 0x170, 0x1e8, 0x168 }; -static const int legacy_irqs[] = { 14, 15, 11, 10 }; -#else -static const u16 legacy_bases[] = { 0x1f0, 0x170, 0x1e8, 0x168, 0x1e0, 0x160 }; -static const int legacy_irqs[] = { 14, 15, 11, 10, 8, 12 }; -#endif - -static void ide_generic_check_pci_legacy_iobases(int *primary, int *secondary) -{ -#ifdef CONFIG_PCI - struct pci_dev *p = NULL; - u16 val; - - for_each_pci_dev(p) { - if (pci_resource_start(p, 0) == 0x1f0) - *primary = 1; - if (pci_resource_start(p, 2) == 0x170) - *secondary = 1; - - /* Cyrix CS55{1,2}0 pre SFF MWDMA ATA on the bridge */ - if (p->vendor == PCI_VENDOR_ID_CYRIX && - (p->device == PCI_DEVICE_ID_CYRIX_5510 || - p->device == PCI_DEVICE_ID_CYRIX_5520)) - *primary = *secondary = 1; - - /* Intel MPIIX - PIO ATA on non PCI side of bridge */ - if (p->vendor == PCI_VENDOR_ID_INTEL && - p->device == PCI_DEVICE_ID_INTEL_82371MX) { - pci_read_config_word(p, 0x6C, &val); - if (val & 0x8000) { - /* ATA port enabled */ - if (val & 0x4000) - *secondary = 1; - else - *primary = 1; - } - } - } -#endif -} - -static int __init ide_generic_init(void) -{ - struct ide_hw hw, *hws[] = { &hw }; - unsigned long io_addr; - int i, rc = 0, primary = 0, secondary = 0; - - ide_generic_check_pci_legacy_iobases(&primary, &secondary); - - if (!probe_mask) { - printk(KERN_INFO DRV_NAME ": please use \"probe_mask=0x3f\" " - "module parameter for probing all legacy ISA IDE ports\n"); - - if (primary == 0) - probe_mask |= 0x1; - - if (secondary == 0) - probe_mask |= 0x2; - } else - printk(KERN_INFO DRV_NAME ": enforcing probing of I/O ports " - "upon user request\n"); - - for (i = 0; i < ARRAY_SIZE(legacy_bases); i++) { - io_addr = legacy_bases[i]; - - if ((probe_mask & (1 << i)) && io_addr) { - if (!request_region(io_addr, 8, DRV_NAME)) { - printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX " - "not free.\n", - DRV_NAME, io_addr, io_addr + 7); - rc = -EBUSY; - continue; - } - - if (!request_region(io_addr + 0x206, 1, DRV_NAME)) { - printk(KERN_ERR "%s: I/O resource 0x%lX " - "not free.\n", - DRV_NAME, io_addr + 0x206); - release_region(io_addr, 8); - rc = -EBUSY; - continue; - } - - memset(&hw, 0, sizeof(hw)); - ide_std_init_ports(&hw, io_addr, io_addr + 0x206); -#ifdef CONFIG_IA64 - hw.irq = isa_irq_to_vector(legacy_irqs[i]); -#else - hw.irq = legacy_irqs[i]; -#endif - rc = ide_host_add(&ide_generic_port_info, hws, 1, NULL); - if (rc) { - release_region(io_addr + 0x206, 1); - release_region(io_addr, 8); - } - } - } - - return rc; -} - -module_init(ide_generic_init); - -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/ide-io-std.c b/drivers/ide/ide-io-std.c deleted file mode 100644 index 94bdcf1ea186..000000000000 --- a/drivers/ide/ide-io-std.c +++ /dev/null @@ -1,262 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only - -#include <linux/kernel.h> -#include <linux/export.h> -#include <linux/ide.h> - -#if defined(CONFIG_ARM) || defined(CONFIG_M68K) || defined(CONFIG_MIPS) || \ - defined(CONFIG_PARISC) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) -#include <asm/ide.h> -#else -#include <asm-generic/ide_iops.h> -#endif - -/* - * Conventional PIO operations for ATA devices - */ - -static u8 ide_inb(unsigned long port) -{ - return (u8) inb(port); -} - -static void ide_outb(u8 val, unsigned long port) -{ - outb(val, port); -} - -/* - * MMIO operations, typically used for SATA controllers - */ - -static u8 ide_mm_inb(unsigned long port) -{ - return (u8) readb((void __iomem *) port); -} - -static void ide_mm_outb(u8 value, unsigned long port) -{ - writeb(value, (void __iomem *) port); -} - -void ide_exec_command(ide_hwif_t *hwif, u8 cmd) -{ - if (hwif->host_flags & IDE_HFLAG_MMIO) - writeb(cmd, (void __iomem *)hwif->io_ports.command_addr); - else - outb(cmd, hwif->io_ports.command_addr); -} -EXPORT_SYMBOL_GPL(ide_exec_command); - -u8 ide_read_status(ide_hwif_t *hwif) -{ - if (hwif->host_flags & IDE_HFLAG_MMIO) - return readb((void __iomem *)hwif->io_ports.status_addr); - else - return inb(hwif->io_ports.status_addr); -} -EXPORT_SYMBOL_GPL(ide_read_status); - -u8 ide_read_altstatus(ide_hwif_t *hwif) -{ - if (hwif->host_flags & IDE_HFLAG_MMIO) - return readb((void __iomem *)hwif->io_ports.ctl_addr); - else - return inb(hwif->io_ports.ctl_addr); -} -EXPORT_SYMBOL_GPL(ide_read_altstatus); - -void ide_write_devctl(ide_hwif_t *hwif, u8 ctl) -{ - if (hwif->host_flags & IDE_HFLAG_MMIO) - writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr); - else - outb(ctl, hwif->io_ports.ctl_addr); -} -EXPORT_SYMBOL_GPL(ide_write_devctl); - -void ide_dev_select(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 select = drive->select | ATA_DEVICE_OBS; - - if (hwif->host_flags & IDE_HFLAG_MMIO) - writeb(select, (void __iomem *)hwif->io_ports.device_addr); - else - outb(select, hwif->io_ports.device_addr); -} -EXPORT_SYMBOL_GPL(ide_dev_select); - -void ide_tf_load(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_io_ports *io_ports = &hwif->io_ports; - void (*tf_outb)(u8 addr, unsigned long port); - u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; - - if (mmio) - tf_outb = ide_mm_outb; - else - tf_outb = ide_outb; - - if (valid & IDE_VALID_FEATURE) - tf_outb(tf->feature, io_ports->feature_addr); - if (valid & IDE_VALID_NSECT) - tf_outb(tf->nsect, io_ports->nsect_addr); - if (valid & IDE_VALID_LBAL) - tf_outb(tf->lbal, io_ports->lbal_addr); - if (valid & IDE_VALID_LBAM) - tf_outb(tf->lbam, io_ports->lbam_addr); - if (valid & IDE_VALID_LBAH) - tf_outb(tf->lbah, io_ports->lbah_addr); - if (valid & IDE_VALID_DEVICE) - tf_outb(tf->device, io_ports->device_addr); -} -EXPORT_SYMBOL_GPL(ide_tf_load); - -void ide_tf_read(ide_drive_t *drive, struct ide_taskfile *tf, u8 valid) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_io_ports *io_ports = &hwif->io_ports; - u8 (*tf_inb)(unsigned long port); - u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; - - if (mmio) - tf_inb = ide_mm_inb; - else - tf_inb = ide_inb; - - if (valid & IDE_VALID_ERROR) - tf->error = tf_inb(io_ports->feature_addr); - if (valid & IDE_VALID_NSECT) - tf->nsect = tf_inb(io_ports->nsect_addr); - if (valid & IDE_VALID_LBAL) - tf->lbal = tf_inb(io_ports->lbal_addr); - if (valid & IDE_VALID_LBAM) - tf->lbam = tf_inb(io_ports->lbam_addr); - if (valid & IDE_VALID_LBAH) - tf->lbah = tf_inb(io_ports->lbah_addr); - if (valid & IDE_VALID_DEVICE) - tf->device = tf_inb(io_ports->device_addr); -} -EXPORT_SYMBOL_GPL(ide_tf_read); - -/* - * Some localbus EIDE interfaces require a special access sequence - * when using 32-bit I/O instructions to transfer data. We call this - * the "vlb_sync" sequence, which consists of three successive reads - * of the sector count register location, with interrupts disabled - * to ensure that the reads all happen together. - */ -static void ata_vlb_sync(unsigned long port) -{ - (void)inb(port); - (void)inb(port); - (void)inb(port); -} - -/* - * This is used for most PIO data transfers *from* the IDE interface - * - * These routines will round up any request for an odd number of bytes, - * so if an odd len is specified, be sure that there's at least one - * extra byte allocated for the buffer. - */ -void ide_input_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf, - unsigned int len) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_io_ports *io_ports = &hwif->io_ports; - unsigned long data_addr = io_ports->data_addr; - unsigned int words = (len + 1) >> 1; - u8 io_32bit = drive->io_32bit; - u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; - - if (io_32bit) { - unsigned long flags; - - if ((io_32bit & 2) && !mmio) { - local_irq_save(flags); - ata_vlb_sync(io_ports->nsect_addr); - } - - words >>= 1; - if (mmio) - __ide_mm_insl((void __iomem *)data_addr, buf, words); - else - insl(data_addr, buf, words); - - if ((io_32bit & 2) && !mmio) - local_irq_restore(flags); - - if (((len + 1) & 3) < 2) - return; - - buf += len & ~3; - words = 1; - } - - if (mmio) - __ide_mm_insw((void __iomem *)data_addr, buf, words); - else - insw(data_addr, buf, words); -} -EXPORT_SYMBOL_GPL(ide_input_data); - -/* - * This is used for most PIO data transfers *to* the IDE interface - */ -void ide_output_data(ide_drive_t *drive, struct ide_cmd *cmd, void *buf, - unsigned int len) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_io_ports *io_ports = &hwif->io_ports; - unsigned long data_addr = io_ports->data_addr; - unsigned int words = (len + 1) >> 1; - u8 io_32bit = drive->io_32bit; - u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; - - if (io_32bit) { - unsigned long flags; - - if ((io_32bit & 2) && !mmio) { - local_irq_save(flags); - ata_vlb_sync(io_ports->nsect_addr); - } - - words >>= 1; - if (mmio) - __ide_mm_outsl((void __iomem *)data_addr, buf, words); - else - outsl(data_addr, buf, words); - - if ((io_32bit & 2) && !mmio) - local_irq_restore(flags); - - if (((len + 1) & 3) < 2) - return; - - buf += len & ~3; - words = 1; - } - - if (mmio) - __ide_mm_outsw((void __iomem *)data_addr, buf, words); - else - outsw(data_addr, buf, words); -} -EXPORT_SYMBOL_GPL(ide_output_data); - -const struct ide_tp_ops default_tp_ops = { - .exec_command = ide_exec_command, - .read_status = ide_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = ide_write_devctl, - - .dev_select = ide_dev_select, - .tf_load = ide_tf_load, - .tf_read = ide_tf_read, - - .input_data = ide_input_data, - .output_data = ide_output_data, -}; diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c deleted file mode 100644 index 4867b67b60d6..000000000000 --- a/drivers/ide/ide-io.c +++ /dev/null @@ -1,904 +0,0 @@ -/* - * IDE I/O functions - * - * Basic PIO and command management functionality. - * - * This code was split off from ide.c. See ide.c for history and original - * copyrights. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * For the avoidance of doubt the "preferred form" of this code is one which - * is in an open non patent encumbered format. Where cryptographic key signing - * forms part of the process of creating an executable the information - * including keys needed to generate an equivalently functional executable - * are deemed to be part of the source code. - */ - - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/major.h> -#include <linux/errno.h> -#include <linux/genhd.h> -#include <linux/blkpg.h> -#include <linux/slab.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/ide.h> -#include <linux/completion.h> -#include <linux/reboot.h> -#include <linux/cdrom.h> -#include <linux/seq_file.h> -#include <linux/device.h> -#include <linux/kmod.h> -#include <linux/scatterlist.h> -#include <linux/bitops.h> - -#include <asm/byteorder.h> -#include <asm/irq.h> -#include <linux/uaccess.h> -#include <asm/io.h> - -int ide_end_rq(ide_drive_t *drive, struct request *rq, blk_status_t error, - unsigned int nr_bytes) -{ - /* - * decide whether to reenable DMA -- 3 is a random magic for now, - * if we DMA timeout more than 3 times, just stay in PIO - */ - if ((drive->dev_flags & IDE_DFLAG_DMA_PIO_RETRY) && - drive->retry_pio <= 3) { - drive->dev_flags &= ~IDE_DFLAG_DMA_PIO_RETRY; - ide_dma_on(drive); - } - - if (!blk_update_request(rq, error, nr_bytes)) { - if (rq == drive->sense_rq) { - drive->sense_rq = NULL; - drive->sense_rq_active = false; - } - - __blk_mq_end_request(rq, error); - return 0; - } - - return 1; -} -EXPORT_SYMBOL_GPL(ide_end_rq); - -void ide_complete_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat, u8 err) -{ - const struct ide_tp_ops *tp_ops = drive->hwif->tp_ops; - struct ide_taskfile *tf = &cmd->tf; - struct request *rq = cmd->rq; - u8 tf_cmd = tf->command; - - tf->error = err; - tf->status = stat; - - if (cmd->ftf_flags & IDE_FTFLAG_IN_DATA) { - u8 data[2]; - - tp_ops->input_data(drive, cmd, data, 2); - - cmd->tf.data = data[0]; - cmd->hob.data = data[1]; - } - - ide_tf_readback(drive, cmd); - - if ((cmd->tf_flags & IDE_TFLAG_CUSTOM_HANDLER) && - tf_cmd == ATA_CMD_IDLEIMMEDIATE) { - if (tf->lbal != 0xc4) { - printk(KERN_ERR "%s: head unload failed!\n", - drive->name); - ide_tf_dump(drive->name, cmd); - } else - drive->dev_flags |= IDE_DFLAG_PARKED; - } - - if (rq && ata_taskfile_request(rq)) { - struct ide_cmd *orig_cmd = ide_req(rq)->special; - - if (cmd->tf_flags & IDE_TFLAG_DYN) - kfree(orig_cmd); - else if (cmd != orig_cmd) - memcpy(orig_cmd, cmd, sizeof(*cmd)); - } -} - -int ide_complete_rq(ide_drive_t *drive, blk_status_t error, unsigned int nr_bytes) -{ - ide_hwif_t *hwif = drive->hwif; - struct request *rq = hwif->rq; - int rc; - - /* - * if failfast is set on a request, override number of sectors - * and complete the whole request right now - */ - if (blk_noretry_request(rq) && error) - nr_bytes = blk_rq_sectors(rq) << 9; - - rc = ide_end_rq(drive, rq, error, nr_bytes); - if (rc == 0) - hwif->rq = NULL; - - return rc; -} -EXPORT_SYMBOL(ide_complete_rq); - -void ide_kill_rq(ide_drive_t *drive, struct request *rq) -{ - u8 drv_req = ata_misc_request(rq) && rq->rq_disk; - u8 media = drive->media; - - drive->failed_pc = NULL; - - if ((media == ide_floppy || media == ide_tape) && drv_req) { - scsi_req(rq)->result = 0; - } else { - if (media == ide_tape) - scsi_req(rq)->result = IDE_DRV_ERROR_GENERAL; - else if (blk_rq_is_passthrough(rq) && scsi_req(rq)->result == 0) - scsi_req(rq)->result = -EIO; - } - - ide_complete_rq(drive, BLK_STS_IOERR, blk_rq_bytes(rq)); -} - -static void ide_tf_set_specify_cmd(ide_drive_t *drive, struct ide_taskfile *tf) -{ - tf->nsect = drive->sect; - tf->lbal = drive->sect; - tf->lbam = drive->cyl; - tf->lbah = drive->cyl >> 8; - tf->device = (drive->head - 1) | drive->select; - tf->command = ATA_CMD_INIT_DEV_PARAMS; -} - -static void ide_tf_set_restore_cmd(ide_drive_t *drive, struct ide_taskfile *tf) -{ - tf->nsect = drive->sect; - tf->command = ATA_CMD_RESTORE; -} - -static void ide_tf_set_setmult_cmd(ide_drive_t *drive, struct ide_taskfile *tf) -{ - tf->nsect = drive->mult_req; - tf->command = ATA_CMD_SET_MULTI; -} - -/** - * do_special - issue some special commands - * @drive: drive the command is for - * - * do_special() is used to issue ATA_CMD_INIT_DEV_PARAMS, - * ATA_CMD_RESTORE and ATA_CMD_SET_MULTI commands to a drive. - */ - -static ide_startstop_t do_special(ide_drive_t *drive) -{ - struct ide_cmd cmd; - -#ifdef DEBUG - printk(KERN_DEBUG "%s: %s: 0x%02x\n", drive->name, __func__, - drive->special_flags); -#endif - if (drive->media != ide_disk) { - drive->special_flags = 0; - drive->mult_req = 0; - return ide_stopped; - } - - memset(&cmd, 0, sizeof(cmd)); - cmd.protocol = ATA_PROT_NODATA; - - if (drive->special_flags & IDE_SFLAG_SET_GEOMETRY) { - drive->special_flags &= ~IDE_SFLAG_SET_GEOMETRY; - ide_tf_set_specify_cmd(drive, &cmd.tf); - } else if (drive->special_flags & IDE_SFLAG_RECALIBRATE) { - drive->special_flags &= ~IDE_SFLAG_RECALIBRATE; - ide_tf_set_restore_cmd(drive, &cmd.tf); - } else if (drive->special_flags & IDE_SFLAG_SET_MULTMODE) { - drive->special_flags &= ~IDE_SFLAG_SET_MULTMODE; - ide_tf_set_setmult_cmd(drive, &cmd.tf); - } else - BUG(); - - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - cmd.tf_flags = IDE_TFLAG_CUSTOM_HANDLER; - - do_rw_taskfile(drive, &cmd); - - return ide_started; -} - -void ide_map_sg(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - struct scatterlist *sg = hwif->sg_table, *last_sg = NULL; - struct request *rq = cmd->rq; - - cmd->sg_nents = __blk_rq_map_sg(drive->queue, rq, sg, &last_sg); - if (blk_rq_bytes(rq) && (blk_rq_bytes(rq) & rq->q->dma_pad_mask)) - last_sg->length += - (rq->q->dma_pad_mask & ~blk_rq_bytes(rq)) + 1; -} -EXPORT_SYMBOL_GPL(ide_map_sg); - -void ide_init_sg_cmd(struct ide_cmd *cmd, unsigned int nr_bytes) -{ - cmd->nbytes = cmd->nleft = nr_bytes; - cmd->cursg_ofs = 0; - cmd->cursg = NULL; -} -EXPORT_SYMBOL_GPL(ide_init_sg_cmd); - -/** - * execute_drive_command - issue special drive command - * @drive: the drive to issue the command on - * @rq: the request structure holding the command - * - * execute_drive_cmd() issues a special drive command, usually - * initiated by ioctl() from the external hdparm program. The - * command can be a drive command, drive task or taskfile - * operation. Weirdly you can call it with NULL to wait for - * all commands to finish. Don't do this as that is due to change - */ - -static ide_startstop_t execute_drive_cmd (ide_drive_t *drive, - struct request *rq) -{ - struct ide_cmd *cmd = ide_req(rq)->special; - - if (cmd) { - if (cmd->protocol == ATA_PROT_PIO) { - ide_init_sg_cmd(cmd, blk_rq_sectors(rq) << 9); - ide_map_sg(drive, cmd); - } - - return do_rw_taskfile(drive, cmd); - } - - /* - * NULL is actually a valid way of waiting for - * all current requests to be flushed from the queue. - */ -#ifdef DEBUG - printk("%s: DRIVE_CMD (null)\n", drive->name); -#endif - scsi_req(rq)->result = 0; - ide_complete_rq(drive, BLK_STS_OK, blk_rq_bytes(rq)); - - return ide_stopped; -} - -static ide_startstop_t ide_special_rq(ide_drive_t *drive, struct request *rq) -{ - u8 cmd = scsi_req(rq)->cmd[0]; - - switch (cmd) { - case REQ_PARK_HEADS: - case REQ_UNPARK_HEADS: - return ide_do_park_unpark(drive, rq); - case REQ_DEVSET_EXEC: - return ide_do_devset(drive, rq); - case REQ_DRIVE_RESET: - return ide_do_reset(drive); - default: - BUG(); - } -} - -/** - * start_request - start of I/O and command issuing for IDE - * - * start_request() initiates handling of a new I/O request. It - * accepts commands and I/O (read/write) requests. - * - * FIXME: this function needs a rename - */ - -static ide_startstop_t start_request (ide_drive_t *drive, struct request *rq) -{ - ide_startstop_t startstop; - -#ifdef DEBUG - printk("%s: start_request: current=0x%08lx\n", - drive->hwif->name, (unsigned long) rq); -#endif - - /* bail early if we've exceeded max_failures */ - if (drive->max_failures && (drive->failures > drive->max_failures)) { - rq->rq_flags |= RQF_FAILED; - goto kill_rq; - } - - if (drive->prep_rq && !drive->prep_rq(drive, rq)) - return ide_stopped; - - if (ata_pm_request(rq)) - ide_check_pm_state(drive, rq); - - drive->hwif->tp_ops->dev_select(drive); - if (ide_wait_stat(&startstop, drive, drive->ready_stat, - ATA_BUSY | ATA_DRQ, WAIT_READY)) { - printk(KERN_ERR "%s: drive not ready for command\n", drive->name); - return startstop; - } - - if (drive->special_flags == 0) { - struct ide_driver *drv; - - /* - * We reset the drive so we need to issue a SETFEATURES. - * Do it _after_ do_special() restored device parameters. - */ - if (drive->current_speed == 0xff) - ide_config_drive_speed(drive, drive->desired_speed); - - if (ata_taskfile_request(rq)) - return execute_drive_cmd(drive, rq); - else if (ata_pm_request(rq)) { - struct ide_pm_state *pm = ide_req(rq)->special; -#ifdef DEBUG_PM - printk("%s: start_power_step(step: %d)\n", - drive->name, pm->pm_step); -#endif - startstop = ide_start_power_step(drive, rq); - if (startstop == ide_stopped && - pm->pm_step == IDE_PM_COMPLETED) - ide_complete_pm_rq(drive, rq); - return startstop; - } else if (!rq->rq_disk && ata_misc_request(rq)) - /* - * TODO: Once all ULDs have been modified to - * check for specific op codes rather than - * blindly accepting any special request, the - * check for ->rq_disk above may be replaced - * by a more suitable mechanism or even - * dropped entirely. - */ - return ide_special_rq(drive, rq); - - drv = *(struct ide_driver **)rq->rq_disk->private_data; - - return drv->do_request(drive, rq, blk_rq_pos(rq)); - } - return do_special(drive); -kill_rq: - ide_kill_rq(drive, rq); - return ide_stopped; -} - -/** - * ide_stall_queue - pause an IDE device - * @drive: drive to stall - * @timeout: time to stall for (jiffies) - * - * ide_stall_queue() can be used by a drive to give excess bandwidth back - * to the port by sleeping for timeout jiffies. - */ - -void ide_stall_queue (ide_drive_t *drive, unsigned long timeout) -{ - if (timeout > WAIT_WORSTCASE) - timeout = WAIT_WORSTCASE; - drive->sleep = timeout + jiffies; - drive->dev_flags |= IDE_DFLAG_SLEEPING; -} -EXPORT_SYMBOL(ide_stall_queue); - -static inline int ide_lock_port(ide_hwif_t *hwif) -{ - if (hwif->busy) - return 1; - - hwif->busy = 1; - - return 0; -} - -static inline void ide_unlock_port(ide_hwif_t *hwif) -{ - hwif->busy = 0; -} - -static inline int ide_lock_host(struct ide_host *host, ide_hwif_t *hwif) -{ - int rc = 0; - - if (host->host_flags & IDE_HFLAG_SERIALIZE) { - rc = test_and_set_bit_lock(IDE_HOST_BUSY, &host->host_busy); - if (rc == 0) { - if (host->get_lock) - host->get_lock(ide_intr, hwif); - } - } - return rc; -} - -static inline void ide_unlock_host(struct ide_host *host) -{ - if (host->host_flags & IDE_HFLAG_SERIALIZE) { - if (host->release_lock) - host->release_lock(); - clear_bit_unlock(IDE_HOST_BUSY, &host->host_busy); - } -} - -void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq) -{ - struct request_queue *q = drive->queue; - - /* Use 3ms as that was the old plug delay */ - if (rq) { - blk_mq_requeue_request(rq, false); - blk_mq_delay_kick_requeue_list(q, 3); - } else - blk_mq_delay_run_hw_queue(q->queue_hw_ctx[0], 3); -} - -blk_status_t ide_issue_rq(ide_drive_t *drive, struct request *rq, - bool local_requeue) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_host *host = hwif->host; - ide_startstop_t startstop; - - if (!blk_rq_is_passthrough(rq) && !(rq->rq_flags & RQF_DONTPREP)) { - rq->rq_flags |= RQF_DONTPREP; - ide_req(rq)->special = NULL; - } - - /* HLD do_request() callback might sleep, make sure it's okay */ - might_sleep(); - - if (ide_lock_host(host, hwif)) - return BLK_STS_DEV_RESOURCE; - - spin_lock_irq(&hwif->lock); - - if (!ide_lock_port(hwif)) { - ide_hwif_t *prev_port; - - WARN_ON_ONCE(hwif->rq); -repeat: - prev_port = hwif->host->cur_port; - if (drive->dev_flags & IDE_DFLAG_SLEEPING && - time_after(drive->sleep, jiffies)) { - ide_unlock_port(hwif); - goto plug_device; - } - - if ((hwif->host->host_flags & IDE_HFLAG_SERIALIZE) && - hwif != prev_port) { - ide_drive_t *cur_dev = - prev_port ? prev_port->cur_dev : NULL; - - /* - * set nIEN for previous port, drives in the - * quirk list may not like intr setups/cleanups - */ - if (cur_dev && - (cur_dev->dev_flags & IDE_DFLAG_NIEN_QUIRK) == 0) - prev_port->tp_ops->write_devctl(prev_port, - ATA_NIEN | - ATA_DEVCTL_OBS); - - hwif->host->cur_port = hwif; - } - hwif->cur_dev = drive; - drive->dev_flags &= ~(IDE_DFLAG_SLEEPING | IDE_DFLAG_PARKED); - - /* - * Sanity: don't accept a request that isn't a PM request - * if we are currently power managed. This is very important as - * blk_stop_queue() doesn't prevent the blk_fetch_request() - * above to return us whatever is in the queue. Since we call - * ide_do_request() ourselves, we end up taking requests while - * the queue is blocked... - */ - if ((drive->dev_flags & IDE_DFLAG_BLOCKED) && - ata_pm_request(rq) == 0 && - (rq->rq_flags & RQF_PM) == 0) { - /* there should be no pending command at this point */ - ide_unlock_port(hwif); - goto plug_device; - } - - scsi_req(rq)->resid_len = blk_rq_bytes(rq); - hwif->rq = rq; - - spin_unlock_irq(&hwif->lock); - startstop = start_request(drive, rq); - spin_lock_irq(&hwif->lock); - - if (startstop == ide_stopped) { - rq = hwif->rq; - hwif->rq = NULL; - if (rq) - goto repeat; - ide_unlock_port(hwif); - goto out; - } - } else { -plug_device: - if (local_requeue) - list_add(&rq->queuelist, &drive->rq_list); - spin_unlock_irq(&hwif->lock); - ide_unlock_host(host); - if (!local_requeue) - ide_requeue_and_plug(drive, rq); - return BLK_STS_OK; - } - -out: - spin_unlock_irq(&hwif->lock); - if (rq == NULL) - ide_unlock_host(host); - return BLK_STS_OK; -} - -/* - * Issue a new request to a device. - */ -blk_status_t ide_queue_rq(struct blk_mq_hw_ctx *hctx, - const struct blk_mq_queue_data *bd) -{ - ide_drive_t *drive = hctx->queue->queuedata; - ide_hwif_t *hwif = drive->hwif; - - spin_lock_irq(&hwif->lock); - if (drive->sense_rq_active) { - spin_unlock_irq(&hwif->lock); - return BLK_STS_DEV_RESOURCE; - } - spin_unlock_irq(&hwif->lock); - - blk_mq_start_request(bd->rq); - return ide_issue_rq(drive, bd->rq, false); -} - -static int drive_is_ready(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 stat = 0; - - if (drive->waiting_for_dma) - return hwif->dma_ops->dma_test_irq(drive); - - if (hwif->io_ports.ctl_addr && - (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0) - stat = hwif->tp_ops->read_altstatus(hwif); - else - /* Note: this may clear a pending IRQ!! */ - stat = hwif->tp_ops->read_status(hwif); - - if (stat & ATA_BUSY) - /* drive busy: definitely not interrupting */ - return 0; - - /* drive ready: *might* be interrupting */ - return 1; -} - -/** - * ide_timer_expiry - handle lack of an IDE interrupt - * @data: timer callback magic (hwif) - * - * An IDE command has timed out before the expected drive return - * occurred. At this point we attempt to clean up the current - * mess. If the current handler includes an expiry handler then - * we invoke the expiry handler, and providing it is happy the - * work is done. If that fails we apply generic recovery rules - * invoking the handler and checking the drive DMA status. We - * have an excessively incestuous relationship with the DMA - * logic that wants cleaning up. - */ - -void ide_timer_expiry (struct timer_list *t) -{ - ide_hwif_t *hwif = from_timer(hwif, t, timer); - ide_drive_t *drive; - ide_handler_t *handler; - unsigned long flags; - int wait = -1; - int plug_device = 0; - struct request *rq_in_flight; - - spin_lock_irqsave(&hwif->lock, flags); - - handler = hwif->handler; - - if (handler == NULL || hwif->req_gen != hwif->req_gen_timer) { - /* - * Either a marginal timeout occurred - * (got the interrupt just as timer expired), - * or we were "sleeping" to give other devices a chance. - * Either way, we don't really want to complain about anything. - */ - } else { - ide_expiry_t *expiry = hwif->expiry; - ide_startstop_t startstop = ide_stopped; - - drive = hwif->cur_dev; - - if (expiry) { - wait = expiry(drive); - if (wait > 0) { /* continue */ - /* reset timer */ - hwif->timer.expires = jiffies + wait; - hwif->req_gen_timer = hwif->req_gen; - add_timer(&hwif->timer); - spin_unlock_irqrestore(&hwif->lock, flags); - return; - } - } - hwif->handler = NULL; - hwif->expiry = NULL; - /* - * We need to simulate a real interrupt when invoking - * the handler() function, which means we need to - * globally mask the specific IRQ: - */ - spin_unlock(&hwif->lock); - /* disable_irq_nosync ?? */ - disable_irq(hwif->irq); - - if (hwif->polling) { - startstop = handler(drive); - } else if (drive_is_ready(drive)) { - if (drive->waiting_for_dma) - hwif->dma_ops->dma_lost_irq(drive); - if (hwif->port_ops && hwif->port_ops->clear_irq) - hwif->port_ops->clear_irq(drive); - - printk(KERN_WARNING "%s: lost interrupt\n", - drive->name); - startstop = handler(drive); - } else { - if (drive->waiting_for_dma) - startstop = ide_dma_timeout_retry(drive, wait); - else - startstop = ide_error(drive, "irq timeout", - hwif->tp_ops->read_status(hwif)); - } - /* Disable interrupts again, `handler' might have enabled it */ - spin_lock_irq(&hwif->lock); - enable_irq(hwif->irq); - if (startstop == ide_stopped && hwif->polling == 0) { - rq_in_flight = hwif->rq; - hwif->rq = NULL; - ide_unlock_port(hwif); - plug_device = 1; - } - } - spin_unlock_irqrestore(&hwif->lock, flags); - - if (plug_device) { - ide_unlock_host(hwif->host); - ide_requeue_and_plug(drive, rq_in_flight); - } -} - -/** - * unexpected_intr - handle an unexpected IDE interrupt - * @irq: interrupt line - * @hwif: port being processed - * - * There's nothing really useful we can do with an unexpected interrupt, - * other than reading the status register (to clear it), and logging it. - * There should be no way that an irq can happen before we're ready for it, - * so we needn't worry much about losing an "important" interrupt here. - * - * On laptops (and "green" PCs), an unexpected interrupt occurs whenever - * the drive enters "idle", "standby", or "sleep" mode, so if the status - * looks "good", we just ignore the interrupt completely. - * - * This routine assumes __cli() is in effect when called. - * - * If an unexpected interrupt happens on irq15 while we are handling irq14 - * and if the two interfaces are "serialized" (CMD640), then it looks like - * we could screw up by interfering with a new request being set up for - * irq15. - * - * In reality, this is a non-issue. The new command is not sent unless - * the drive is ready to accept one, in which case we know the drive is - * not trying to interrupt us. And ide_set_handler() is always invoked - * before completing the issuance of any new drive command, so we will not - * be accidentally invoked as a result of any valid command completion - * interrupt. - */ - -static void unexpected_intr(int irq, ide_hwif_t *hwif) -{ - u8 stat = hwif->tp_ops->read_status(hwif); - - if (!OK_STAT(stat, ATA_DRDY, BAD_STAT)) { - /* Try to not flood the console with msgs */ - static unsigned long last_msgtime, count; - ++count; - - if (time_after(jiffies, last_msgtime + HZ)) { - last_msgtime = jiffies; - printk(KERN_ERR "%s: unexpected interrupt, " - "status=0x%02x, count=%ld\n", - hwif->name, stat, count); - } - } -} - -/** - * ide_intr - default IDE interrupt handler - * @irq: interrupt number - * @dev_id: hwif - * @regs: unused weirdness from the kernel irq layer - * - * This is the default IRQ handler for the IDE layer. You should - * not need to override it. If you do be aware it is subtle in - * places - * - * hwif is the interface in the group currently performing - * a command. hwif->cur_dev is the drive and hwif->handler is - * the IRQ handler to call. As we issue a command the handlers - * step through multiple states, reassigning the handler to the - * next step in the process. Unlike a smart SCSI controller IDE - * expects the main processor to sequence the various transfer - * stages. We also manage a poll timer to catch up with most - * timeout situations. There are still a few where the handlers - * don't ever decide to give up. - * - * The handler eventually returns ide_stopped to indicate the - * request completed. At this point we issue the next request - * on the port and the process begins again. - */ - -irqreturn_t ide_intr (int irq, void *dev_id) -{ - ide_hwif_t *hwif = (ide_hwif_t *)dev_id; - struct ide_host *host = hwif->host; - ide_drive_t *drive; - ide_handler_t *handler; - unsigned long flags; - ide_startstop_t startstop; - irqreturn_t irq_ret = IRQ_NONE; - int plug_device = 0; - struct request *rq_in_flight; - - if (host->host_flags & IDE_HFLAG_SERIALIZE) { - if (hwif != host->cur_port) - goto out_early; - } - - spin_lock_irqsave(&hwif->lock, flags); - - if (hwif->port_ops && hwif->port_ops->test_irq && - hwif->port_ops->test_irq(hwif) == 0) - goto out; - - handler = hwif->handler; - - if (handler == NULL || hwif->polling) { - /* - * Not expecting an interrupt from this drive. - * That means this could be: - * (1) an interrupt from another PCI device - * sharing the same PCI INT# as us. - * or (2) a drive just entered sleep or standby mode, - * and is interrupting to let us know. - * or (3) a spurious interrupt of unknown origin. - * - * For PCI, we cannot tell the difference, - * so in that case we just ignore it and hope it goes away. - */ - if ((host->irq_flags & IRQF_SHARED) == 0) { - /* - * Probably not a shared PCI interrupt, - * so we can safely try to do something about it: - */ - unexpected_intr(irq, hwif); - } else { - /* - * Whack the status register, just in case - * we have a leftover pending IRQ. - */ - (void)hwif->tp_ops->read_status(hwif); - } - goto out; - } - - drive = hwif->cur_dev; - - if (!drive_is_ready(drive)) - /* - * This happens regularly when we share a PCI IRQ with - * another device. Unfortunately, it can also happen - * with some buggy drives that trigger the IRQ before - * their status register is up to date. Hopefully we have - * enough advance overhead that the latter isn't a problem. - */ - goto out; - - hwif->handler = NULL; - hwif->expiry = NULL; - hwif->req_gen++; - del_timer(&hwif->timer); - spin_unlock(&hwif->lock); - - if (hwif->port_ops && hwif->port_ops->clear_irq) - hwif->port_ops->clear_irq(drive); - - if (drive->dev_flags & IDE_DFLAG_UNMASK) - local_irq_enable_in_hardirq(); - - /* service this interrupt, may set handler for next interrupt */ - startstop = handler(drive); - - spin_lock_irq(&hwif->lock); - /* - * Note that handler() may have set things up for another - * interrupt to occur soon, but it cannot happen until - * we exit from this routine, because it will be the - * same irq as is currently being serviced here, and Linux - * won't allow another of the same (on any CPU) until we return. - */ - if (startstop == ide_stopped && hwif->polling == 0) { - BUG_ON(hwif->handler); - rq_in_flight = hwif->rq; - hwif->rq = NULL; - ide_unlock_port(hwif); - plug_device = 1; - } - irq_ret = IRQ_HANDLED; -out: - spin_unlock_irqrestore(&hwif->lock, flags); -out_early: - if (plug_device) { - ide_unlock_host(hwif->host); - ide_requeue_and_plug(drive, rq_in_flight); - } - - return irq_ret; -} -EXPORT_SYMBOL_GPL(ide_intr); - -void ide_pad_transfer(ide_drive_t *drive, int write, int len) -{ - ide_hwif_t *hwif = drive->hwif; - u8 buf[4] = { 0 }; - - while (len > 0) { - if (write) - hwif->tp_ops->output_data(drive, NULL, buf, min(4, len)); - else - hwif->tp_ops->input_data(drive, NULL, buf, min(4, len)); - len -= 4; - } -} -EXPORT_SYMBOL_GPL(ide_pad_transfer); - -void ide_insert_request_head(ide_drive_t *drive, struct request *rq) -{ - drive->sense_rq_active = true; - list_add_tail(&rq->queuelist, &drive->rq_list); - kblockd_schedule_work(&drive->rq_work); -} -EXPORT_SYMBOL_GPL(ide_insert_request_head); diff --git a/drivers/ide/ide-ioctls.c b/drivers/ide/ide-ioctls.c deleted file mode 100644 index 43fbc37d85c3..000000000000 --- a/drivers/ide/ide-ioctls.c +++ /dev/null @@ -1,306 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * IDE ioctls handling. - */ - -#include <linux/compat.h> -#include <linux/export.h> -#include <linux/hdreg.h> -#include <linux/ide.h> -#include <linux/slab.h> - -static int put_user_long(long val, unsigned long arg) -{ - if (in_compat_syscall()) - return put_user(val, (compat_long_t __user *)compat_ptr(arg)); - - return put_user(val, (long __user *)arg); -} - -static const struct ide_ioctl_devset ide_ioctl_settings[] = { -{ HDIO_GET_32BIT, HDIO_SET_32BIT, &ide_devset_io_32bit }, -{ HDIO_GET_KEEPSETTINGS, HDIO_SET_KEEPSETTINGS, &ide_devset_keepsettings }, -{ HDIO_GET_UNMASKINTR, HDIO_SET_UNMASKINTR, &ide_devset_unmaskirq }, -{ HDIO_GET_DMA, HDIO_SET_DMA, &ide_devset_using_dma }, -{ -1, HDIO_SET_PIO_MODE, &ide_devset_pio_mode }, -{ 0 } -}; - -int ide_setting_ioctl(ide_drive_t *drive, struct block_device *bdev, - unsigned int cmd, unsigned long arg, - const struct ide_ioctl_devset *s) -{ - const struct ide_devset *ds; - int err = -EOPNOTSUPP; - - for (; (ds = s->setting); s++) { - if (ds->get && s->get_ioctl == cmd) - goto read_val; - else if (ds->set && s->set_ioctl == cmd) - goto set_val; - } - - return err; - -read_val: - mutex_lock(&ide_setting_mtx); - err = ds->get(drive); - mutex_unlock(&ide_setting_mtx); - return err >= 0 ? put_user_long(err, arg) : err; - -set_val: - if (bdev_is_partition(bdev)) - err = -EINVAL; - else { - if (!capable(CAP_SYS_ADMIN)) - err = -EACCES; - else { - mutex_lock(&ide_setting_mtx); - err = ide_devset_execute(drive, ds, arg); - mutex_unlock(&ide_setting_mtx); - } - } - return err; -} -EXPORT_SYMBOL_GPL(ide_setting_ioctl); - -static int ide_get_identity_ioctl(ide_drive_t *drive, unsigned int cmd, - void __user *argp) -{ - u16 *id = NULL; - int size = (cmd == HDIO_GET_IDENTITY) ? (ATA_ID_WORDS * 2) : 142; - int rc = 0; - - if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) { - rc = -ENOMSG; - goto out; - } - - /* ata_id_to_hd_driveid() relies on 'id' to be fully allocated. */ - id = kmalloc(ATA_ID_WORDS * 2, GFP_KERNEL); - if (id == NULL) { - rc = -ENOMEM; - goto out; - } - - memcpy(id, drive->id, size); - ata_id_to_hd_driveid(id); - - if (copy_to_user(argp, id, size)) - rc = -EFAULT; - - kfree(id); -out: - return rc; -} - -static int ide_get_nice_ioctl(ide_drive_t *drive, unsigned long arg) -{ - return put_user_long((!!(drive->dev_flags & IDE_DFLAG_DSC_OVERLAP) - << IDE_NICE_DSC_OVERLAP) | - (!!(drive->dev_flags & IDE_DFLAG_NICE1) - << IDE_NICE_1), arg); -} - -static int ide_set_nice_ioctl(ide_drive_t *drive, unsigned long arg) -{ - if (arg != (arg & ((1 << IDE_NICE_DSC_OVERLAP) | (1 << IDE_NICE_1)))) - return -EPERM; - - if (((arg >> IDE_NICE_DSC_OVERLAP) & 1) && - (drive->media != ide_tape)) - return -EPERM; - - if ((arg >> IDE_NICE_DSC_OVERLAP) & 1) - drive->dev_flags |= IDE_DFLAG_DSC_OVERLAP; - else - drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP; - - if ((arg >> IDE_NICE_1) & 1) - drive->dev_flags |= IDE_DFLAG_NICE1; - else - drive->dev_flags &= ~IDE_DFLAG_NICE1; - - return 0; -} - -static int ide_cmd_ioctl(ide_drive_t *drive, void __user *argp) -{ - u8 *buf = NULL; - int bufsize = 0, err = 0; - u8 args[4], xfer_rate = 0; - struct ide_cmd cmd; - struct ide_taskfile *tf = &cmd.tf; - - if (NULL == argp) { - struct request *rq; - - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); - ide_req(rq)->type = ATA_PRIV_TASKFILE; - blk_execute_rq(NULL, rq, 0); - err = scsi_req(rq)->result ? -EIO : 0; - blk_put_request(rq); - - return err; - } - - if (copy_from_user(args, argp, 4)) - return -EFAULT; - - memset(&cmd, 0, sizeof(cmd)); - tf->feature = args[2]; - if (args[0] == ATA_CMD_SMART) { - tf->nsect = args[3]; - tf->lbal = args[1]; - tf->lbam = ATA_SMART_LBAM_PASS; - tf->lbah = ATA_SMART_LBAH_PASS; - cmd.valid.out.tf = IDE_VALID_OUT_TF; - cmd.valid.in.tf = IDE_VALID_NSECT; - } else { - tf->nsect = args[1]; - cmd.valid.out.tf = IDE_VALID_FEATURE | IDE_VALID_NSECT; - cmd.valid.in.tf = IDE_VALID_NSECT; - } - tf->command = args[0]; - cmd.protocol = args[3] ? ATA_PROT_PIO : ATA_PROT_NODATA; - - if (args[3]) { - cmd.tf_flags |= IDE_TFLAG_IO_16BIT; - bufsize = SECTOR_SIZE * args[3]; - buf = kzalloc(bufsize, GFP_KERNEL); - if (buf == NULL) - return -ENOMEM; - } - - if (tf->command == ATA_CMD_SET_FEATURES && - tf->feature == SETFEATURES_XFER && - tf->nsect >= XFER_SW_DMA_0) { - xfer_rate = ide_find_dma_mode(drive, tf->nsect); - if (xfer_rate != tf->nsect) { - err = -EINVAL; - goto abort; - } - - cmd.tf_flags |= IDE_TFLAG_SET_XFER; - } - - err = ide_raw_taskfile(drive, &cmd, buf, args[3]); - - args[0] = tf->status; - args[1] = tf->error; - args[2] = tf->nsect; -abort: - if (copy_to_user(argp, &args, 4)) - err = -EFAULT; - if (buf) { - if (copy_to_user((argp + 4), buf, bufsize)) - err = -EFAULT; - kfree(buf); - } - return err; -} - -static int ide_task_ioctl(ide_drive_t *drive, void __user *p) -{ - int err = 0; - u8 args[7]; - struct ide_cmd cmd; - - if (copy_from_user(args, p, 7)) - return -EFAULT; - - memset(&cmd, 0, sizeof(cmd)); - memcpy(&cmd.tf.feature, &args[1], 6); - cmd.tf.command = args[0]; - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - - err = ide_no_data_taskfile(drive, &cmd); - - args[0] = cmd.tf.command; - memcpy(&args[1], &cmd.tf.feature, 6); - - if (copy_to_user(p, args, 7)) - err = -EFAULT; - - return err; -} - -static int generic_drive_reset(ide_drive_t *drive) -{ - struct request *rq; - int ret = 0; - - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); - ide_req(rq)->type = ATA_PRIV_MISC; - scsi_req(rq)->cmd_len = 1; - scsi_req(rq)->cmd[0] = REQ_DRIVE_RESET; - blk_execute_rq(NULL, rq, 1); - ret = scsi_req(rq)->result; - blk_put_request(rq); - return ret; -} - -int generic_ide_ioctl(ide_drive_t *drive, struct block_device *bdev, - unsigned int cmd, unsigned long arg) -{ - int err; - void __user *argp = (void __user *)arg; - - if (in_compat_syscall()) - argp = compat_ptr(arg); - - err = ide_setting_ioctl(drive, bdev, cmd, arg, ide_ioctl_settings); - if (err != -EOPNOTSUPP) - return err; - - switch (cmd) { - case HDIO_OBSOLETE_IDENTITY: - case HDIO_GET_IDENTITY: - if (bdev_is_partition(bdev)) - return -EINVAL; - return ide_get_identity_ioctl(drive, cmd, argp); - case HDIO_GET_NICE: - return ide_get_nice_ioctl(drive, arg); - case HDIO_SET_NICE: - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - return ide_set_nice_ioctl(drive, arg); -#ifdef CONFIG_IDE_TASK_IOCTL - case HDIO_DRIVE_TASKFILE: - if (!capable(CAP_SYS_ADMIN) || !capable(CAP_SYS_RAWIO)) - return -EACCES; - /* missing compat handler for HDIO_DRIVE_TASKFILE */ - if (in_compat_syscall()) - return -ENOTTY; - if (drive->media == ide_disk) - return ide_taskfile_ioctl(drive, arg); - return -ENOMSG; -#endif - case HDIO_DRIVE_CMD: - if (!capable(CAP_SYS_RAWIO)) - return -EACCES; - return ide_cmd_ioctl(drive, argp); - case HDIO_DRIVE_TASK: - if (!capable(CAP_SYS_RAWIO)) - return -EACCES; - return ide_task_ioctl(drive, argp); - case HDIO_DRIVE_RESET: - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - return generic_drive_reset(drive); - case HDIO_GET_BUSSTATE: - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - if (put_user_long(BUSSTATE_ON, arg)) - return -EFAULT; - return 0; - case HDIO_SET_BUSSTATE: - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - return -EOPNOTSUPP; - default: - return -EINVAL; - } -} -EXPORT_SYMBOL(generic_ide_ioctl); diff --git a/drivers/ide/ide-iops.c b/drivers/ide/ide-iops.c deleted file mode 100644 index f2be127ee96e..000000000000 --- a/drivers/ide/ide-iops.c +++ /dev/null @@ -1,536 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2003 Red Hat - * - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/major.h> -#include <linux/errno.h> -#include <linux/genhd.h> -#include <linux/blkpg.h> -#include <linux/slab.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/ide.h> -#include <linux/bitops.h> -#include <linux/nmi.h> - -#include <asm/byteorder.h> -#include <asm/irq.h> -#include <linux/uaccess.h> -#include <asm/io.h> - -void SELECT_MASK(ide_drive_t *drive, int mask) -{ - const struct ide_port_ops *port_ops = drive->hwif->port_ops; - - if (port_ops && port_ops->maskproc) - port_ops->maskproc(drive, mask); -} - -u8 ide_read_error(ide_drive_t *drive) -{ - struct ide_taskfile tf; - - drive->hwif->tp_ops->tf_read(drive, &tf, IDE_VALID_ERROR); - - return tf.error; -} -EXPORT_SYMBOL_GPL(ide_read_error); - -void ide_fix_driveid(u16 *id) -{ -#ifndef __LITTLE_ENDIAN -# ifdef __BIG_ENDIAN - int i; - - for (i = 0; i < 256; i++) - id[i] = __le16_to_cpu(id[i]); -# else -# error "Please fix <asm/byteorder.h>" -# endif -#endif -} - -/* - * ide_fixstring() cleans up and (optionally) byte-swaps a text string, - * removing leading/trailing blanks and compressing internal blanks. - * It is primarily used to tidy up the model name/number fields as - * returned by the ATA_CMD_ID_ATA[PI] commands. - */ - -void ide_fixstring(u8 *s, const int bytecount, const int byteswap) -{ - u8 *p, *end = &s[bytecount & ~1]; /* bytecount must be even */ - - if (byteswap) { - /* convert from big-endian to host byte order */ - for (p = s ; p != end ; p += 2) - be16_to_cpus((u16 *) p); - } - - /* strip leading blanks */ - p = s; - while (s != end && *s == ' ') - ++s; - /* compress internal blanks and strip trailing blanks */ - while (s != end && *s) { - if (*s++ != ' ' || (s != end && *s && *s != ' ')) - *p++ = *(s-1); - } - /* wipe out trailing garbage */ - while (p != end) - *p++ = '\0'; -} -EXPORT_SYMBOL(ide_fixstring); - -/* - * This routine busy-waits for the drive status to be not "busy". - * It then checks the status for all of the "good" bits and none - * of the "bad" bits, and if all is okay it returns 0. All other - * cases return error -- caller may then invoke ide_error(). - * - * This routine should get fixed to not hog the cpu during extra long waits.. - * That could be done by busy-waiting for the first jiffy or two, and then - * setting a timer to wake up at half second intervals thereafter, - * until timeout is achieved, before timing out. - */ -int __ide_wait_stat(ide_drive_t *drive, u8 good, u8 bad, - unsigned long timeout, u8 *rstat) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - unsigned long flags; - bool irqs_threaded = force_irqthreads; - int i; - u8 stat; - - udelay(1); /* spec allows drive 400ns to assert "BUSY" */ - stat = tp_ops->read_status(hwif); - - if (stat & ATA_BUSY) { - if (!irqs_threaded) { - local_save_flags(flags); - local_irq_enable_in_hardirq(); - } - timeout += jiffies; - while ((stat = tp_ops->read_status(hwif)) & ATA_BUSY) { - if (time_after(jiffies, timeout)) { - /* - * One last read after the timeout in case - * heavy interrupt load made us not make any - * progress during the timeout.. - */ - stat = tp_ops->read_status(hwif); - if ((stat & ATA_BUSY) == 0) - break; - - if (!irqs_threaded) - local_irq_restore(flags); - *rstat = stat; - return -EBUSY; - } - } - if (!irqs_threaded) - local_irq_restore(flags); - } - /* - * Allow status to settle, then read it again. - * A few rare drives vastly violate the 400ns spec here, - * so we'll wait up to 10usec for a "good" status - * rather than expensively fail things immediately. - * This fix courtesy of Matthew Faupel & Niccolo Rigacci. - */ - for (i = 0; i < 10; i++) { - udelay(1); - stat = tp_ops->read_status(hwif); - - if (OK_STAT(stat, good, bad)) { - *rstat = stat; - return 0; - } - } - *rstat = stat; - return -EFAULT; -} - -/* - * In case of error returns error value after doing "*startstop = ide_error()". - * The caller should return the updated value of "startstop" in this case, - * "startstop" is unchanged when the function returns 0. - */ -int ide_wait_stat(ide_startstop_t *startstop, ide_drive_t *drive, u8 good, - u8 bad, unsigned long timeout) -{ - int err; - u8 stat; - - /* bail early if we've exceeded max_failures */ - if (drive->max_failures && (drive->failures > drive->max_failures)) { - *startstop = ide_stopped; - return 1; - } - - err = __ide_wait_stat(drive, good, bad, timeout, &stat); - - if (err) { - char *s = (err == -EBUSY) ? "status timeout" : "status error"; - *startstop = ide_error(drive, s, stat); - } - - return err; -} -EXPORT_SYMBOL(ide_wait_stat); - -/** - * ide_in_drive_list - look for drive in black/white list - * @id: drive identifier - * @table: list to inspect - * - * Look for a drive in the blacklist and the whitelist tables - * Returns 1 if the drive is found in the table. - */ - -int ide_in_drive_list(u16 *id, const struct drive_list_entry *table) -{ - for ( ; table->id_model; table++) - if ((!strcmp(table->id_model, (char *)&id[ATA_ID_PROD])) && - (!table->id_firmware || - strstr((char *)&id[ATA_ID_FW_REV], table->id_firmware))) - return 1; - return 0; -} -EXPORT_SYMBOL_GPL(ide_in_drive_list); - -/* - * Early UDMA66 devices don't set bit14 to 1, only bit13 is valid. - * Some optical devices with the buggy firmwares have the same problem. - */ -static const struct drive_list_entry ivb_list[] = { - { "QUANTUM FIREBALLlct10 05" , "A03.0900" }, - { "QUANTUM FIREBALLlct20 30" , "APL.0900" }, - { "TSSTcorp CDDVDW SH-S202J" , "SB00" }, - { "TSSTcorp CDDVDW SH-S202J" , "SB01" }, - { "TSSTcorp CDDVDW SH-S202N" , "SB00" }, - { "TSSTcorp CDDVDW SH-S202N" , "SB01" }, - { "TSSTcorp CDDVDW SH-S202H" , "SB00" }, - { "TSSTcorp CDDVDW SH-S202H" , "SB01" }, - { "SAMSUNG SP0822N" , "WA100-10" }, - { NULL , NULL } -}; - -/* - * All hosts that use the 80c ribbon must use! - * The name is derived from upper byte of word 93 and the 80c ribbon. - */ -u8 eighty_ninty_three(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u16 *id = drive->id; - int ivb = ide_in_drive_list(id, ivb_list); - - if (hwif->cbl == ATA_CBL_SATA || hwif->cbl == ATA_CBL_PATA40_SHORT) - return 1; - - if (ivb) - printk(KERN_DEBUG "%s: skipping word 93 validity check\n", - drive->name); - - if (ata_id_is_sata(id) && !ivb) - return 1; - - if (hwif->cbl != ATA_CBL_PATA80 && !ivb) - goto no_80w; - - /* - * FIXME: - * - change master/slave IDENTIFY order - * - force bit13 (80c cable present) check also for !ivb devices - * (unless the slave device is pre-ATA3) - */ - if (id[ATA_ID_HW_CONFIG] & 0x4000) - return 1; - - if (ivb) { - const char *model = (char *)&id[ATA_ID_PROD]; - - if (strstr(model, "TSSTcorp CDDVDW SH-S202")) { - /* - * These ATAPI devices always report 80c cable - * so we have to depend on the host in this case. - */ - if (hwif->cbl == ATA_CBL_PATA80) - return 1; - } else { - /* Depend on the device side cable detection. */ - if (id[ATA_ID_HW_CONFIG] & 0x2000) - return 1; - } - } -no_80w: - if (drive->dev_flags & IDE_DFLAG_UDMA33_WARNED) - return 0; - - printk(KERN_WARNING "%s: %s side 80-wire cable detection failed, " - "limiting max speed to UDMA33\n", - drive->name, - hwif->cbl == ATA_CBL_PATA80 ? "drive" : "host"); - - drive->dev_flags |= IDE_DFLAG_UDMA33_WARNED; - - return 0; -} - -static const char *nien_quirk_list[] = { - "QUANTUM FIREBALLlct08 08", - "QUANTUM FIREBALLP KA6.4", - "QUANTUM FIREBALLP KA9.1", - "QUANTUM FIREBALLP KX13.6", - "QUANTUM FIREBALLP KX20.5", - "QUANTUM FIREBALLP KX27.3", - "QUANTUM FIREBALLP LM20.4", - "QUANTUM FIREBALLP LM20.5", - "FUJITSU MHZ2160BH G2", - NULL -}; - -void ide_check_nien_quirk_list(ide_drive_t *drive) -{ - const char **list, *m = (char *)&drive->id[ATA_ID_PROD]; - - for (list = nien_quirk_list; *list != NULL; list++) - if (strstr(m, *list) != NULL) { - drive->dev_flags |= IDE_DFLAG_NIEN_QUIRK; - return; - } -} - -int ide_driveid_update(ide_drive_t *drive) -{ - u16 *id; - int rc; - - id = kmalloc(SECTOR_SIZE, GFP_ATOMIC); - if (id == NULL) - return 0; - - SELECT_MASK(drive, 1); - rc = ide_dev_read_id(drive, ATA_CMD_ID_ATA, id, 1); - SELECT_MASK(drive, 0); - - if (rc) - goto out_err; - - drive->id[ATA_ID_UDMA_MODES] = id[ATA_ID_UDMA_MODES]; - drive->id[ATA_ID_MWDMA_MODES] = id[ATA_ID_MWDMA_MODES]; - drive->id[ATA_ID_SWDMA_MODES] = id[ATA_ID_SWDMA_MODES]; - drive->id[ATA_ID_CFA_MODES] = id[ATA_ID_CFA_MODES]; - /* anything more ? */ - - kfree(id); - - return 1; -out_err: - if (rc == 2) - printk(KERN_ERR "%s: %s: bad status\n", drive->name, __func__); - kfree(id); - return 0; -} - -int ide_config_drive_speed(ide_drive_t *drive, u8 speed) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - struct ide_taskfile tf; - u16 *id = drive->id, i; - int error = 0; - u8 stat; - -#ifdef CONFIG_BLK_DEV_IDEDMA - if (hwif->dma_ops) /* check if host supports DMA */ - hwif->dma_ops->dma_host_set(drive, 0); -#endif - - /* Skip setting PIO flow-control modes on pre-EIDE drives */ - if ((speed & 0xf8) == XFER_PIO_0 && ata_id_has_iordy(drive->id) == 0) - goto skip; - - /* - * Don't use ide_wait_cmd here - it will - * attempt to set_geometry and recalibrate, - * but for some reason these don't work at - * this point (lost interrupt). - */ - - udelay(1); - tp_ops->dev_select(drive); - SELECT_MASK(drive, 1); - udelay(1); - tp_ops->write_devctl(hwif, ATA_NIEN | ATA_DEVCTL_OBS); - - memset(&tf, 0, sizeof(tf)); - tf.feature = SETFEATURES_XFER; - tf.nsect = speed; - - tp_ops->tf_load(drive, &tf, IDE_VALID_FEATURE | IDE_VALID_NSECT); - - tp_ops->exec_command(hwif, ATA_CMD_SET_FEATURES); - - if (drive->dev_flags & IDE_DFLAG_NIEN_QUIRK) - tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); - - error = __ide_wait_stat(drive, drive->ready_stat, - ATA_BUSY | ATA_DRQ | ATA_ERR, - WAIT_CMD, &stat); - - SELECT_MASK(drive, 0); - - if (error) { - (void) ide_dump_status(drive, "set_drive_speed_status", stat); - return error; - } - - if (speed >= XFER_SW_DMA_0) { - id[ATA_ID_UDMA_MODES] &= ~0xFF00; - id[ATA_ID_MWDMA_MODES] &= ~0x0700; - id[ATA_ID_SWDMA_MODES] &= ~0x0700; - if (ata_id_is_cfa(id)) - id[ATA_ID_CFA_MODES] &= ~0x0E00; - } else if (ata_id_is_cfa(id)) - id[ATA_ID_CFA_MODES] &= ~0x01C0; - - skip: -#ifdef CONFIG_BLK_DEV_IDEDMA - if (speed >= XFER_SW_DMA_0 && (drive->dev_flags & IDE_DFLAG_USING_DMA)) - hwif->dma_ops->dma_host_set(drive, 1); - else if (hwif->dma_ops) /* check if host supports DMA */ - ide_dma_off_quietly(drive); -#endif - - if (speed >= XFER_UDMA_0) { - i = 1 << (speed - XFER_UDMA_0); - id[ATA_ID_UDMA_MODES] |= (i << 8 | i); - } else if (ata_id_is_cfa(id) && speed >= XFER_MW_DMA_3) { - i = speed - XFER_MW_DMA_2; - id[ATA_ID_CFA_MODES] |= i << 9; - } else if (speed >= XFER_MW_DMA_0) { - i = 1 << (speed - XFER_MW_DMA_0); - id[ATA_ID_MWDMA_MODES] |= (i << 8 | i); - } else if (speed >= XFER_SW_DMA_0) { - i = 1 << (speed - XFER_SW_DMA_0); - id[ATA_ID_SWDMA_MODES] |= (i << 8 | i); - } else if (ata_id_is_cfa(id) && speed >= XFER_PIO_5) { - i = speed - XFER_PIO_4; - id[ATA_ID_CFA_MODES] |= i << 6; - } - - if (!drive->init_speed) - drive->init_speed = speed; - drive->current_speed = speed; - return error; -} - -/* - * This should get invoked any time we exit the driver to - * wait for an interrupt response from a drive. handler() points - * at the appropriate code to handle the next interrupt, and a - * timer is started to prevent us from waiting forever in case - * something goes wrong (see the ide_timer_expiry() handler later on). - * - * See also ide_execute_command - */ -void __ide_set_handler(ide_drive_t *drive, ide_handler_t *handler, - unsigned int timeout) -{ - ide_hwif_t *hwif = drive->hwif; - - BUG_ON(hwif->handler); - hwif->handler = handler; - hwif->timer.expires = jiffies + timeout; - hwif->req_gen_timer = hwif->req_gen; - add_timer(&hwif->timer); -} - -void ide_set_handler(ide_drive_t *drive, ide_handler_t *handler, - unsigned int timeout) -{ - ide_hwif_t *hwif = drive->hwif; - unsigned long flags; - - spin_lock_irqsave(&hwif->lock, flags); - __ide_set_handler(drive, handler, timeout); - spin_unlock_irqrestore(&hwif->lock, flags); -} -EXPORT_SYMBOL(ide_set_handler); - -/** - * ide_execute_command - execute an IDE command - * @drive: IDE drive to issue the command against - * @cmd: command - * @handler: handler for next phase - * @timeout: timeout for command - * - * Helper function to issue an IDE command. This handles the - * atomicity requirements, command timing and ensures that the - * handler and IRQ setup do not race. All IDE command kick off - * should go via this function or do equivalent locking. - */ - -void ide_execute_command(ide_drive_t *drive, struct ide_cmd *cmd, - ide_handler_t *handler, unsigned timeout) -{ - ide_hwif_t *hwif = drive->hwif; - unsigned long flags; - - spin_lock_irqsave(&hwif->lock, flags); - if ((cmd->protocol != ATAPI_PROT_DMA && - cmd->protocol != ATAPI_PROT_PIO) || - (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT)) - __ide_set_handler(drive, handler, timeout); - hwif->tp_ops->exec_command(hwif, cmd->tf.command); - /* - * Drive takes 400nS to respond, we must avoid the IRQ being - * serviced before that. - * - * FIXME: we could skip this delay with care on non shared devices - */ - ndelay(400); - spin_unlock_irqrestore(&hwif->lock, flags); -} - -/* - * ide_wait_not_busy() waits for the currently selected device on the hwif - * to report a non-busy status, see comments in ide_probe_port(). - */ -int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout) -{ - u8 stat = 0; - - while (timeout--) { - /* - * Turn this into a schedule() sleep once I'm sure - * about locking issues (2.5 work ?). - */ - mdelay(1); - stat = hwif->tp_ops->read_status(hwif); - if ((stat & ATA_BUSY) == 0) - return 0; - /* - * Assume a value of 0xff means nothing is connected to - * the interface and it doesn't implement the pull-down - * resistor on D7. - */ - if (stat == 0xff) - return -ENODEV; - touch_nmi_watchdog(); - } - return -EBUSY; -} diff --git a/drivers/ide/ide-legacy.c b/drivers/ide/ide-legacy.c deleted file mode 100644 index be65b411ab53..000000000000 --- a/drivers/ide/ide-legacy.c +++ /dev/null @@ -1,59 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -#include <linux/kernel.h> -#include <linux/export.h> -#include <linux/ide.h> - -static void ide_legacy_init_one(struct ide_hw **hws, struct ide_hw *hw, - u8 port_no, const struct ide_port_info *d, - unsigned long config) -{ - unsigned long base, ctl; - int irq; - - if (port_no == 0) { - base = 0x1f0; - ctl = 0x3f6; - irq = 14; - } else { - base = 0x170; - ctl = 0x376; - irq = 15; - } - - if (!request_region(base, 8, d->name)) { - printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", - d->name, base, base + 7); - return; - } - - if (!request_region(ctl, 1, d->name)) { - printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", - d->name, ctl); - release_region(base, 8); - return; - } - - ide_std_init_ports(hw, base, ctl); - hw->irq = irq; - hw->config = config; - - hws[port_no] = hw; -} - -int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config) -{ - struct ide_hw hw[2], *hws[] = { NULL, NULL }; - - memset(&hw, 0, sizeof(hw)); - - if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0) - ide_legacy_init_one(hws, &hw[0], 0, d, config); - ide_legacy_init_one(hws, &hw[1], 1, d, config); - - if (hws[0] == NULL && hws[1] == NULL && - (d->host_flags & IDE_HFLAG_SINGLE)) - return -ENOENT; - - return ide_host_add(d, hws, 2, NULL); -} -EXPORT_SYMBOL_GPL(ide_legacy_device_add); diff --git a/drivers/ide/ide-lib.c b/drivers/ide/ide-lib.c deleted file mode 100644 index 7b9f655adbc2..000000000000 --- a/drivers/ide/ide-lib.c +++ /dev/null @@ -1,146 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -#include <linux/types.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/export.h> -#include <linux/interrupt.h> -#include <linux/ide.h> -#include <linux/bitops.h> - -u64 ide_get_lba_addr(struct ide_cmd *cmd, int lba48) -{ - struct ide_taskfile *tf = &cmd->tf; - u32 high, low; - - low = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal; - if (lba48) { - tf = &cmd->hob; - high = (tf->lbah << 16) | (tf->lbam << 8) | tf->lbal; - } else - high = tf->device & 0xf; - - return ((u64)high << 24) | low; -} -EXPORT_SYMBOL_GPL(ide_get_lba_addr); - -static void ide_dump_sector(ide_drive_t *drive) -{ - struct ide_cmd cmd; - struct ide_taskfile *tf = &cmd.tf; - u8 lba48 = !!(drive->dev_flags & IDE_DFLAG_LBA48); - - memset(&cmd, 0, sizeof(cmd)); - if (lba48) { - cmd.valid.in.tf = IDE_VALID_LBA; - cmd.valid.in.hob = IDE_VALID_LBA; - cmd.tf_flags = IDE_TFLAG_LBA48; - } else - cmd.valid.in.tf = IDE_VALID_LBA | IDE_VALID_DEVICE; - - ide_tf_readback(drive, &cmd); - - if (lba48 || (tf->device & ATA_LBA)) - printk(KERN_CONT ", LBAsect=%llu", - (unsigned long long)ide_get_lba_addr(&cmd, lba48)); - else - printk(KERN_CONT ", CHS=%d/%d/%d", (tf->lbah << 8) + tf->lbam, - tf->device & 0xf, tf->lbal); -} - -static void ide_dump_ata_error(ide_drive_t *drive, u8 err) -{ - printk(KERN_CONT "{ "); - if (err & ATA_ABORTED) - printk(KERN_CONT "DriveStatusError "); - if (err & ATA_ICRC) - printk(KERN_CONT "%s", - (err & ATA_ABORTED) ? "BadCRC " : "BadSector "); - if (err & ATA_UNC) - printk(KERN_CONT "UncorrectableError "); - if (err & ATA_IDNF) - printk(KERN_CONT "SectorIdNotFound "); - if (err & ATA_TRK0NF) - printk(KERN_CONT "TrackZeroNotFound "); - if (err & ATA_AMNF) - printk(KERN_CONT "AddrMarkNotFound "); - printk(KERN_CONT "}"); - if ((err & (ATA_BBK | ATA_ABORTED)) == ATA_BBK || - (err & (ATA_UNC | ATA_IDNF | ATA_AMNF))) { - struct request *rq = drive->hwif->rq; - - ide_dump_sector(drive); - - if (rq) - printk(KERN_CONT ", sector=%llu", - (unsigned long long)blk_rq_pos(rq)); - } - printk(KERN_CONT "\n"); -} - -static void ide_dump_atapi_error(ide_drive_t *drive, u8 err) -{ - printk(KERN_CONT "{ "); - if (err & ATAPI_ILI) - printk(KERN_CONT "IllegalLengthIndication "); - if (err & ATAPI_EOM) - printk(KERN_CONT "EndOfMedia "); - if (err & ATA_ABORTED) - printk(KERN_CONT "AbortedCommand "); - if (err & ATA_MCR) - printk(KERN_CONT "MediaChangeRequested "); - if (err & ATAPI_LFS) - printk(KERN_CONT "LastFailedSense=0x%02x ", - (err & ATAPI_LFS) >> 4); - printk(KERN_CONT "}\n"); -} - -/** - * ide_dump_status - translate ATA/ATAPI error - * @drive: drive that status applies to - * @msg: text message to print - * @stat: status byte to decode - * - * Error reporting, in human readable form (luxurious, but a memory hog). - * Combines the drive name, message and status byte to provide a - * user understandable explanation of the device error. - */ - -u8 ide_dump_status(ide_drive_t *drive, const char *msg, u8 stat) -{ - u8 err = 0; - - printk(KERN_ERR "%s: %s: status=0x%02x { ", drive->name, msg, stat); - if (stat & ATA_BUSY) - printk(KERN_CONT "Busy "); - else { - if (stat & ATA_DRDY) - printk(KERN_CONT "DriveReady "); - if (stat & ATA_DF) - printk(KERN_CONT "DeviceFault "); - if (stat & ATA_DSC) - printk(KERN_CONT "SeekComplete "); - if (stat & ATA_DRQ) - printk(KERN_CONT "DataRequest "); - if (stat & ATA_CORR) - printk(KERN_CONT "CorrectedError "); - if (stat & ATA_SENSE) - printk(KERN_CONT "Sense "); - if (stat & ATA_ERR) - printk(KERN_CONT "Error "); - } - printk(KERN_CONT "}\n"); - if ((stat & (ATA_BUSY | ATA_ERR)) == ATA_ERR) { - err = ide_read_error(drive); - printk(KERN_ERR "%s: %s: error=0x%02x ", drive->name, msg, err); - if (drive->media == ide_disk) - ide_dump_ata_error(drive, err); - else - ide_dump_atapi_error(drive, err); - } - - printk(KERN_ERR "%s: possibly failed opcode: 0x%02x\n", - drive->name, drive->hwif->cmd.tf.command); - - return err; -} -EXPORT_SYMBOL(ide_dump_status); diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c deleted file mode 100644 index a80a0f28f7b9..000000000000 --- a/drivers/ide/ide-park.c +++ /dev/null @@ -1,155 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/kernel.h> -#include <linux/gfp.h> -#include <linux/ide.h> -#include <linux/jiffies.h> -#include <linux/blkdev.h> - -DECLARE_WAIT_QUEUE_HEAD(ide_park_wq); - -static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout) -{ - ide_hwif_t *hwif = drive->hwif; - struct request_queue *q = drive->queue; - struct request *rq; - int rc; - - timeout += jiffies; - spin_lock_irq(&hwif->lock); - if (drive->dev_flags & IDE_DFLAG_PARKED) { - int reset_timer = time_before(timeout, drive->sleep); - int start_queue = 0; - - drive->sleep = timeout; - wake_up_all(&ide_park_wq); - if (reset_timer && del_timer(&hwif->timer)) - start_queue = 1; - spin_unlock_irq(&hwif->lock); - - if (start_queue) - blk_mq_run_hw_queues(q, true); - return; - } - spin_unlock_irq(&hwif->lock); - - rq = blk_get_request(q, REQ_OP_DRV_IN, 0); - scsi_req(rq)->cmd[0] = REQ_PARK_HEADS; - scsi_req(rq)->cmd_len = 1; - ide_req(rq)->type = ATA_PRIV_MISC; - ide_req(rq)->special = &timeout; - blk_execute_rq(NULL, rq, 1); - rc = scsi_req(rq)->result ? -EIO : 0; - blk_put_request(rq); - if (rc) - goto out; - - /* - * Make sure that *some* command is sent to the drive after the - * timeout has expired, so power management will be reenabled. - */ - rq = blk_get_request(q, REQ_OP_DRV_IN, BLK_MQ_REQ_NOWAIT); - if (IS_ERR(rq)) - goto out; - - scsi_req(rq)->cmd[0] = REQ_UNPARK_HEADS; - scsi_req(rq)->cmd_len = 1; - ide_req(rq)->type = ATA_PRIV_MISC; - spin_lock_irq(&hwif->lock); - ide_insert_request_head(drive, rq); - spin_unlock_irq(&hwif->lock); - -out: - return; -} - -ide_startstop_t ide_do_park_unpark(ide_drive_t *drive, struct request *rq) -{ - struct ide_cmd cmd; - struct ide_taskfile *tf = &cmd.tf; - - memset(&cmd, 0, sizeof(cmd)); - if (scsi_req(rq)->cmd[0] == REQ_PARK_HEADS) { - drive->sleep = *(unsigned long *)ide_req(rq)->special; - drive->dev_flags |= IDE_DFLAG_SLEEPING; - tf->command = ATA_CMD_IDLEIMMEDIATE; - tf->feature = 0x44; - tf->lbal = 0x4c; - tf->lbam = 0x4e; - tf->lbah = 0x55; - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - } else /* cmd == REQ_UNPARK_HEADS */ - tf->command = ATA_CMD_CHK_POWER; - - cmd.tf_flags |= IDE_TFLAG_CUSTOM_HANDLER; - cmd.protocol = ATA_PROT_NODATA; - - cmd.rq = rq; - - return do_rw_taskfile(drive, &cmd); -} - -ssize_t ide_park_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - ide_drive_t *drive = to_ide_device(dev); - ide_hwif_t *hwif = drive->hwif; - unsigned long now; - unsigned int msecs; - - if (drive->dev_flags & IDE_DFLAG_NO_UNLOAD) - return -EOPNOTSUPP; - - spin_lock_irq(&hwif->lock); - now = jiffies; - if (drive->dev_flags & IDE_DFLAG_PARKED && - time_after(drive->sleep, now)) - msecs = jiffies_to_msecs(drive->sleep - now); - else - msecs = 0; - spin_unlock_irq(&hwif->lock); - - return snprintf(buf, 20, "%u\n", msecs); -} - -ssize_t ide_park_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t len) -{ -#define MAX_PARK_TIMEOUT 30000 - ide_drive_t *drive = to_ide_device(dev); - long int input; - int rc; - - rc = kstrtol(buf, 10, &input); - if (rc) - return rc; - if (input < -2) - return -EINVAL; - if (input > MAX_PARK_TIMEOUT) { - input = MAX_PARK_TIMEOUT; - rc = -EOVERFLOW; - } - - mutex_lock(&ide_setting_mtx); - if (input >= 0) { - if (drive->dev_flags & IDE_DFLAG_NO_UNLOAD) - rc = -EOPNOTSUPP; - else if (input || drive->dev_flags & IDE_DFLAG_PARKED) - issue_park_cmd(drive, msecs_to_jiffies(input)); - } else { - if (drive->media == ide_disk) - switch (input) { - case -1: - drive->dev_flags &= ~IDE_DFLAG_NO_UNLOAD; - break; - case -2: - drive->dev_flags |= IDE_DFLAG_NO_UNLOAD; - break; - } - else - rc = -EOPNOTSUPP; - } - mutex_unlock(&ide_setting_mtx); - - return rc ? rc : len; -} diff --git a/drivers/ide/ide-pci-generic.c b/drivers/ide/ide-pci-generic.c deleted file mode 100644 index 673420db953f..000000000000 --- a/drivers/ide/ide-pci-generic.c +++ /dev/null @@ -1,203 +0,0 @@ -/* - * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org> - * Portions (C) Copyright 2002 Red Hat Inc - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2, or (at your option) any - * later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * For the avoidance of doubt the "preferred form" of this code is one which - * is in an open non patent encumbered format. Where cryptographic key signing - * forms part of the process of creating an executable the information - * including keys needed to generate an equivalently functional executable - * are deemed to be part of the source code. - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#define DRV_NAME "ide_pci_generic" - -static bool ide_generic_all; /* Set to claim all devices */ - -module_param_named(all_generic_ide, ide_generic_all, bool, 0444); -MODULE_PARM_DESC(all_generic_ide, "IDE generic will claim all unknown PCI IDE storage controllers."); - -static void netcell_quirkproc(ide_drive_t *drive) -{ - /* mark words 85-87 as valid */ - drive->id[ATA_ID_CSF_DEFAULT] |= 0x4000; -} - -static const struct ide_port_ops netcell_port_ops = { - .quirkproc = netcell_quirkproc, -}; - -#define DECLARE_GENERIC_PCI_DEV(extra_flags) \ - { \ - .name = DRV_NAME, \ - .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | \ - extra_flags, \ - .swdma_mask = ATA_SWDMA2, \ - .mwdma_mask = ATA_MWDMA2, \ - .udma_mask = ATA_UDMA6, \ - } - -static const struct ide_port_info generic_chipsets[] = { - /* 0: Unknown */ - DECLARE_GENERIC_PCI_DEV(0), - - { /* 1: NS87410 */ - .name = DRV_NAME, - .enablebits = { {0x43, 0x08, 0x08}, {0x47, 0x08, 0x08} }, - .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA, - .swdma_mask = ATA_SWDMA2, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA6, - }, - - /* 2: SAMURAI / HT6565 / HINT_IDE */ - DECLARE_GENERIC_PCI_DEV(0), - /* 3: UM8673F / UM8886A / UM8886BF */ - DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_DMA), - /* 4: VIA_IDE / OPTI621V / Piccolo010{2,3,5} */ - DECLARE_GENERIC_PCI_DEV(IDE_HFLAG_NO_AUTODMA), - - { /* 5: VIA8237SATA */ - .name = DRV_NAME, - .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | - IDE_HFLAG_OFF_BOARD, - .swdma_mask = ATA_SWDMA2, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA6, - }, - - { /* 6: Revolution */ - .name = DRV_NAME, - .port_ops = &netcell_port_ops, - .host_flags = IDE_HFLAG_CLEAR_SIMPLEX | - IDE_HFLAG_TRUST_BIOS_FOR_DMA | - IDE_HFLAG_OFF_BOARD, - .swdma_mask = ATA_SWDMA2, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA6, - } -}; - -/** - * generic_init_one - called when a PIIX is found - * @dev: the generic device - * @id: the matching pci id - * - * Called when the PCI registration layer (or the IDE initialization) - * finds a device matching our IDE device tables. - */ - -static int generic_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - const struct ide_port_info *d = &generic_chipsets[id->driver_data]; - int ret = -ENODEV; - - /* Don't use the generic entry unless instructed to do so */ - if (id->driver_data == 0 && ide_generic_all == 0) - goto out; - - switch (dev->vendor) { - case PCI_VENDOR_ID_UMC: - if (dev->device == PCI_DEVICE_ID_UMC_UM8886A && - !(PCI_FUNC(dev->devfn) & 1)) - goto out; /* UM8886A/BF pair */ - break; - case PCI_VENDOR_ID_OPTI: - if (dev->device == PCI_DEVICE_ID_OPTI_82C558 && - !(PCI_FUNC(dev->devfn) & 1)) - goto out; - break; - case PCI_VENDOR_ID_JMICRON: - if (dev->device != PCI_DEVICE_ID_JMICRON_JMB368 && - PCI_FUNC(dev->devfn) != 1) - goto out; - break; - case PCI_VENDOR_ID_NS: - if (dev->device == PCI_DEVICE_ID_NS_87410 && - (dev->class >> 8) != PCI_CLASS_STORAGE_IDE) - goto out; - break; - } - - if (dev->vendor != PCI_VENDOR_ID_JMICRON) { - u16 command; - pci_read_config_word(dev, PCI_COMMAND, &command); - if (!(command & PCI_COMMAND_IO)) { - printk(KERN_INFO "%s %s: skipping disabled " - "controller\n", d->name, pci_name(dev)); - goto out; - } - } - ret = ide_pci_init_one(dev, d, NULL); -out: - return ret; -} - -static const struct pci_device_id generic_pci_tbl[] = { - { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87410), 1 }, - { PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_SAMURAI_IDE), 2 }, - { PCI_VDEVICE(HOLTEK, PCI_DEVICE_ID_HOLTEK_6565), 2 }, - { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8673F), 3 }, - { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886A), 3 }, - { PCI_VDEVICE(UMC, PCI_DEVICE_ID_UMC_UM8886BF), 3 }, - { PCI_VDEVICE(HINT, PCI_DEVICE_ID_HINT_VXPROII_IDE), 2 }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C561), 4 }, - { PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C558), 4 }, -#ifdef CONFIG_BLK_DEV_IDE_SATA - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_8237_SATA), 5 }, -#endif - { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_1), 4 }, - { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_2), 4 }, - { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_3), 4 }, - { PCI_VDEVICE(TOSHIBA, PCI_DEVICE_ID_TOSHIBA_PICCOLO_5), 4 }, - { PCI_VDEVICE(NETCELL, PCI_DEVICE_ID_REVOLUTION), 6 }, - /* - * Must come last. If you add entries adjust - * this table and generic_chipsets[] appropriately. - */ - { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_IDE << 8, 0xFFFFFF00UL, 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, generic_pci_tbl); - -static struct pci_driver generic_pci_driver = { - .name = "PCI_IDE", - .id_table = generic_pci_tbl, - .probe = generic_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init generic_ide_init(void) -{ - return ide_pci_register_driver(&generic_pci_driver); -} - -static void __exit generic_ide_exit(void) -{ - pci_unregister_driver(&generic_pci_driver); -} - -module_init(generic_ide_init); -module_exit(generic_ide_exit); - -MODULE_AUTHOR("Andre Hedrick"); -MODULE_DESCRIPTION("PCI driver module for generic PCI IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/ide-pio-blacklist.c b/drivers/ide/ide-pio-blacklist.c deleted file mode 100644 index 1fd24798e5c9..000000000000 --- a/drivers/ide/ide-pio-blacklist.c +++ /dev/null @@ -1,96 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * PIO blacklist. Some drives incorrectly report their maximal PIO mode, - * at least in respect to CMD640. Here we keep info on some known drives. - * - * Changes to the ide_pio_blacklist[] should be made with EXTREME CAUTION - * to avoid breaking the fragile cmd640.c support. - */ - -#include <linux/string.h> -#include <linux/ide.h> - -static struct ide_pio_info { - const char *name; - int pio; -} ide_pio_blacklist [] = { - { "Conner Peripherals 540MB - CFS540A", 3 }, - - { "WDC AC2700", 3 }, - { "WDC AC2540", 3 }, - { "WDC AC2420", 3 }, - { "WDC AC2340", 3 }, - { "WDC AC2250", 0 }, - { "WDC AC2200", 0 }, - { "WDC AC21200", 4 }, - { "WDC AC2120", 0 }, - { "WDC AC2850", 3 }, - { "WDC AC1270", 3 }, - { "WDC AC1170", 1 }, - { "WDC AC1210", 1 }, - { "WDC AC280", 0 }, - { "WDC AC31000", 3 }, - { "WDC AC31200", 3 }, - - { "Maxtor 7131 AT", 1 }, - { "Maxtor 7171 AT", 1 }, - { "Maxtor 7213 AT", 1 }, - { "Maxtor 7245 AT", 1 }, - { "Maxtor 7345 AT", 1 }, - { "Maxtor 7546 AT", 3 }, - { "Maxtor 7540 AV", 3 }, - - { "SAMSUNG SHD-3121A", 1 }, - { "SAMSUNG SHD-3122A", 1 }, - { "SAMSUNG SHD-3172A", 1 }, - - { "ST5660A", 3 }, - { "ST3660A", 3 }, - { "ST3630A", 3 }, - { "ST3655A", 3 }, - { "ST3391A", 3 }, - { "ST3390A", 1 }, - { "ST3600A", 1 }, - { "ST3290A", 0 }, - { "ST3144A", 0 }, - { "ST3491A", 1 }, /* reports 3, should be 1 or 2 (depending on drive) - according to Seagate's FIND-ATA program */ - - { "QUANTUM ELS127A", 0 }, - { "QUANTUM ELS170A", 0 }, - { "QUANTUM LPS240A", 0 }, - { "QUANTUM LPS210A", 3 }, - { "QUANTUM LPS270A", 3 }, - { "QUANTUM LPS365A", 3 }, - { "QUANTUM LPS540A", 3 }, - { "QUANTUM LIGHTNING 540A", 3 }, - { "QUANTUM LIGHTNING 730A", 3 }, - - { "QUANTUM FIREBALL_540", 3 }, /* Older Quantum Fireballs don't work */ - { "QUANTUM FIREBALL_640", 3 }, - { "QUANTUM FIREBALL_1080", 3 }, - { "QUANTUM FIREBALL_1280", 3 }, - { NULL, 0 } -}; - -/** - * ide_scan_pio_blacklist - check for a blacklisted drive - * @model: Drive model string - * - * This routine searches the ide_pio_blacklist for an entry - * matching the start/whole of the supplied model name. - * - * Returns -1 if no match found. - * Otherwise returns the recommended PIO mode from ide_pio_blacklist[]. - */ - -int ide_scan_pio_blacklist(char *model) -{ - struct ide_pio_info *p; - - for (p = ide_pio_blacklist; p->name != NULL; p++) { - if (strncmp(p->name, model, strlen(p->name)) == 0) - return p->pio; - } - return -1; -} diff --git a/drivers/ide/ide-pm.c b/drivers/ide/ide-pm.c deleted file mode 100644 index d680b3e3295f..000000000000 --- a/drivers/ide/ide-pm.c +++ /dev/null @@ -1,261 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/kernel.h> -#include <linux/gfp.h> -#include <linux/ide.h> - -int generic_ide_suspend(struct device *dev, pm_message_t mesg) -{ - ide_drive_t *drive = to_ide_device(dev); - ide_drive_t *pair = ide_get_pair_dev(drive); - ide_hwif_t *hwif = drive->hwif; - struct request *rq; - struct ide_pm_state rqpm; - int ret; - - if (ide_port_acpi(hwif)) { - /* call ACPI _GTM only once */ - if ((drive->dn & 1) == 0 || pair == NULL) - ide_acpi_get_timing(hwif); - } - - memset(&rqpm, 0, sizeof(rqpm)); - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); - ide_req(rq)->type = ATA_PRIV_PM_SUSPEND; - ide_req(rq)->special = &rqpm; - rqpm.pm_step = IDE_PM_START_SUSPEND; - if (mesg.event == PM_EVENT_PRETHAW) - mesg.event = PM_EVENT_FREEZE; - rqpm.pm_state = mesg.event; - - blk_execute_rq(NULL, rq, 0); - ret = scsi_req(rq)->result ? -EIO : 0; - blk_put_request(rq); - - if (ret == 0 && ide_port_acpi(hwif)) { - /* call ACPI _PS3 only after both devices are suspended */ - if ((drive->dn & 1) || pair == NULL) - ide_acpi_set_state(hwif, 0); - } - - return ret; -} - -static int ide_pm_execute_rq(struct request *rq) -{ - struct request_queue *q = rq->q; - - if (unlikely(blk_queue_dying(q))) { - rq->rq_flags |= RQF_QUIET; - scsi_req(rq)->result = -ENXIO; - blk_mq_end_request(rq, BLK_STS_OK); - return -ENXIO; - } - blk_execute_rq(NULL, rq, true); - - return scsi_req(rq)->result ? -EIO : 0; -} - -int generic_ide_resume(struct device *dev) -{ - ide_drive_t *drive = to_ide_device(dev); - ide_drive_t *pair = ide_get_pair_dev(drive); - ide_hwif_t *hwif = drive->hwif; - struct request *rq; - struct ide_pm_state rqpm; - int err; - - blk_mq_start_stopped_hw_queues(drive->queue, true); - - if (ide_port_acpi(hwif)) { - /* call ACPI _PS0 / _STM only once */ - if ((drive->dn & 1) == 0 || pair == NULL) { - ide_acpi_set_state(hwif, 1); - ide_acpi_push_timing(hwif); - } - - ide_acpi_exec_tfs(drive); - } - - memset(&rqpm, 0, sizeof(rqpm)); - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, BLK_MQ_REQ_PM); - ide_req(rq)->type = ATA_PRIV_PM_RESUME; - ide_req(rq)->special = &rqpm; - rqpm.pm_step = IDE_PM_START_RESUME; - rqpm.pm_state = PM_EVENT_ON; - - err = ide_pm_execute_rq(rq); - blk_put_request(rq); - - if (err == 0 && dev->driver) { - struct ide_driver *drv = to_ide_driver(dev->driver); - - if (drv->resume) - drv->resume(drive); - } - - return err; -} - -void ide_complete_power_step(ide_drive_t *drive, struct request *rq) -{ - struct ide_pm_state *pm = ide_req(rq)->special; - -#ifdef DEBUG_PM - printk(KERN_INFO "%s: complete_power_step(step: %d)\n", - drive->name, pm->pm_step); -#endif - if (drive->media != ide_disk) - return; - - switch (pm->pm_step) { - case IDE_PM_FLUSH_CACHE: /* Suspend step 1 (flush cache) */ - if (pm->pm_state == PM_EVENT_FREEZE) - pm->pm_step = IDE_PM_COMPLETED; - else - pm->pm_step = IDE_PM_STANDBY; - break; - case IDE_PM_STANDBY: /* Suspend step 2 (standby) */ - pm->pm_step = IDE_PM_COMPLETED; - break; - case IDE_PM_RESTORE_PIO: /* Resume step 1 (restore PIO) */ - pm->pm_step = IDE_PM_IDLE; - break; - case IDE_PM_IDLE: /* Resume step 2 (idle)*/ - pm->pm_step = IDE_PM_RESTORE_DMA; - break; - } -} - -ide_startstop_t ide_start_power_step(ide_drive_t *drive, struct request *rq) -{ - struct ide_pm_state *pm = ide_req(rq)->special; - struct ide_cmd cmd = { }; - - switch (pm->pm_step) { - case IDE_PM_FLUSH_CACHE: /* Suspend step 1 (flush cache) */ - if (drive->media != ide_disk) - break; - /* Not supported? Switch to next step now. */ - if (ata_id_flush_enabled(drive->id) == 0 || - (drive->dev_flags & IDE_DFLAG_WCACHE) == 0) { - ide_complete_power_step(drive, rq); - return ide_stopped; - } - if (ata_id_flush_ext_enabled(drive->id)) - cmd.tf.command = ATA_CMD_FLUSH_EXT; - else - cmd.tf.command = ATA_CMD_FLUSH; - goto out_do_tf; - case IDE_PM_STANDBY: /* Suspend step 2 (standby) */ - cmd.tf.command = ATA_CMD_STANDBYNOW1; - goto out_do_tf; - case IDE_PM_RESTORE_PIO: /* Resume step 1 (restore PIO) */ - ide_set_max_pio(drive); - /* - * skip IDE_PM_IDLE for ATAPI devices - */ - if (drive->media != ide_disk) - pm->pm_step = IDE_PM_RESTORE_DMA; - else - ide_complete_power_step(drive, rq); - return ide_stopped; - case IDE_PM_IDLE: /* Resume step 2 (idle) */ - cmd.tf.command = ATA_CMD_IDLEIMMEDIATE; - goto out_do_tf; - case IDE_PM_RESTORE_DMA: /* Resume step 3 (restore DMA) */ - /* - * Right now, all we do is call ide_set_dma(drive), - * we could be smarter and check for current xfer_speed - * in struct drive etc... - */ - if (drive->hwif->dma_ops == NULL) - break; - /* - * TODO: respect IDE_DFLAG_USING_DMA - */ - ide_set_dma(drive); - break; - } - - pm->pm_step = IDE_PM_COMPLETED; - - return ide_stopped; - -out_do_tf: - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - cmd.protocol = ATA_PROT_NODATA; - - return do_rw_taskfile(drive, &cmd); -} - -/** - * ide_complete_pm_rq - end the current Power Management request - * @drive: target drive - * @rq: request - * - * This function cleans up the current PM request and stops the queue - * if necessary. - */ -void ide_complete_pm_rq(ide_drive_t *drive, struct request *rq) -{ - struct request_queue *q = drive->queue; - struct ide_pm_state *pm = ide_req(rq)->special; - - ide_complete_power_step(drive, rq); - if (pm->pm_step != IDE_PM_COMPLETED) - return; - -#ifdef DEBUG_PM - printk("%s: completing PM request, %s\n", drive->name, - (ide_req(rq)->type == ATA_PRIV_PM_SUSPEND) ? "suspend" : "resume"); -#endif - if (ide_req(rq)->type == ATA_PRIV_PM_SUSPEND) - blk_mq_stop_hw_queues(q); - else - drive->dev_flags &= ~IDE_DFLAG_BLOCKED; - - drive->hwif->rq = NULL; - - blk_mq_end_request(rq, BLK_STS_OK); -} - -void ide_check_pm_state(ide_drive_t *drive, struct request *rq) -{ - struct ide_pm_state *pm = ide_req(rq)->special; - - if (blk_rq_is_private(rq) && - ide_req(rq)->type == ATA_PRIV_PM_SUSPEND && - pm->pm_step == IDE_PM_START_SUSPEND) - /* Mark drive blocked when starting the suspend sequence. */ - drive->dev_flags |= IDE_DFLAG_BLOCKED; - else if (blk_rq_is_private(rq) && - ide_req(rq)->type == ATA_PRIV_PM_RESUME && - pm->pm_step == IDE_PM_START_RESUME) { - /* - * The first thing we do on wakeup is to wait for BSY bit to - * go away (with a looong timeout) as a drive on this hwif may - * just be POSTing itself. - * We do that before even selecting as the "other" device on - * the bus may be broken enough to walk on our toes at this - * point. - */ - ide_hwif_t *hwif = drive->hwif; - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - struct request_queue *q = drive->queue; - int rc; -#ifdef DEBUG_PM - printk("%s: Wakeup request inited, waiting for !BSY...\n", drive->name); -#endif - rc = ide_wait_not_busy(hwif, 35000); - if (rc) - printk(KERN_WARNING "%s: bus not ready on wakeup\n", drive->name); - tp_ops->dev_select(drive); - tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); - rc = ide_wait_not_busy(hwif, 100000); - if (rc) - printk(KERN_WARNING "%s: drive not ready on wakeup\n", drive->name); - - blk_mq_start_hw_queues(q); - } -} diff --git a/drivers/ide/ide-pnp.c b/drivers/ide/ide-pnp.c deleted file mode 100644 index fc541f1cf8de..000000000000 --- a/drivers/ide/ide-pnp.c +++ /dev/null @@ -1,92 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * This file provides autodetection for ISA PnP IDE interfaces. - * It was tested with "ESS ES1868 Plug and Play AudioDrive" IDE interface. - * - * Copyright (C) 2000 Andrey Panin <pazke@donpac.ru> - */ - -#include <linux/init.h> -#include <linux/pnp.h> -#include <linux/ide.h> -#include <linux/module.h> - -#define DRV_NAME "ide-pnp" - -/* Add your devices here :)) */ -static const struct pnp_device_id idepnp_devices[] = { - /* Generic ESDI/IDE/ATA compatible hard disk controller */ - {.id = "PNP0600", .driver_data = 0}, - {.id = ""} -}; - -static const struct ide_port_info ide_pnp_port_info = { - .host_flags = IDE_HFLAG_NO_DMA, - .chipset = ide_generic, -}; - -static int idepnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) -{ - struct ide_host *host; - unsigned long base, ctl; - int rc; - struct ide_hw hw, *hws[] = { &hw }; - - printk(KERN_INFO DRV_NAME ": generic PnP IDE interface\n"); - - if (!(pnp_port_valid(dev, 0) && pnp_port_valid(dev, 1) && pnp_irq_valid(dev, 0))) - return -1; - - base = pnp_port_start(dev, 0); - ctl = pnp_port_start(dev, 1); - - if (!request_region(base, 8, DRV_NAME)) { - printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n", - DRV_NAME, base, base + 7); - return -EBUSY; - } - - if (!request_region(ctl, 1, DRV_NAME)) { - printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n", - DRV_NAME, ctl); - release_region(base, 8); - return -EBUSY; - } - - memset(&hw, 0, sizeof(hw)); - ide_std_init_ports(&hw, base, ctl); - hw.irq = pnp_irq(dev, 0); - - rc = ide_host_add(&ide_pnp_port_info, hws, 1, &host); - if (rc) - goto out; - - pnp_set_drvdata(dev, host); - - return 0; -out: - release_region(ctl, 1); - release_region(base, 8); - - return rc; -} - -static void idepnp_remove(struct pnp_dev *dev) -{ - struct ide_host *host = pnp_get_drvdata(dev); - - ide_host_remove(host); - - release_region(pnp_port_start(dev, 1), 1); - release_region(pnp_port_start(dev, 0), 8); -} - -static struct pnp_driver idepnp_driver = { - .name = "ide", - .id_table = idepnp_devices, - .probe = idepnp_probe, - .remove = idepnp_remove, -}; - -module_pnp_driver(idepnp_driver); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/ide-probe.c b/drivers/ide/ide-probe.c deleted file mode 100644 index aefd74c0d862..000000000000 --- a/drivers/ide/ide-probe.c +++ /dev/null @@ -1,1623 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1994-1998 Linus Torvalds & authors (see below) - * Copyright (C) 2005, 2007 Bartlomiej Zolnierkiewicz - */ - -/* - * Mostly written by Mark Lord <mlord@pobox.com> - * and Gadi Oxman <gadio@netvision.net.il> - * and Andre Hedrick <andre@linux-ide.org> - * - * See linux/MAINTAINERS for address of current maintainer. - * - * This is the IDE probe module, as evolved from hd.c and ide.c. - * - * -- increase WAIT_PIDENTIFY to avoid CD-ROM locking at boot - * by Andrea Arcangeli - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/major.h> -#include <linux/errno.h> -#include <linux/genhd.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/ide.h> -#include <linux/spinlock.h> -#include <linux/kmod.h> -#include <linux/pci.h> -#include <linux/scatterlist.h> - -#include <asm/byteorder.h> -#include <asm/irq.h> -#include <linux/uaccess.h> -#include <asm/io.h> - -/** - * generic_id - add a generic drive id - * @drive: drive to make an ID block for - * - * Add a fake id field to the drive we are passed. This allows - * use to skip a ton of NULL checks (which people always miss) - * and make drive properties unconditional outside of this file - */ - -static void generic_id(ide_drive_t *drive) -{ - u16 *id = drive->id; - - id[ATA_ID_CUR_CYLS] = id[ATA_ID_CYLS] = drive->cyl; - id[ATA_ID_CUR_HEADS] = id[ATA_ID_HEADS] = drive->head; - id[ATA_ID_CUR_SECTORS] = id[ATA_ID_SECTORS] = drive->sect; -} - -static void ide_disk_init_chs(ide_drive_t *drive) -{ - u16 *id = drive->id; - - /* Extract geometry if we did not already have one for the drive */ - if (!drive->cyl || !drive->head || !drive->sect) { - drive->cyl = drive->bios_cyl = id[ATA_ID_CYLS]; - drive->head = drive->bios_head = id[ATA_ID_HEADS]; - drive->sect = drive->bios_sect = id[ATA_ID_SECTORS]; - } - - /* Handle logical geometry translation by the drive */ - if (ata_id_current_chs_valid(id)) { - drive->cyl = id[ATA_ID_CUR_CYLS]; - drive->head = id[ATA_ID_CUR_HEADS]; - drive->sect = id[ATA_ID_CUR_SECTORS]; - } - - /* Use physical geometry if what we have still makes no sense */ - if (drive->head > 16 && id[ATA_ID_HEADS] && id[ATA_ID_HEADS] <= 16) { - drive->cyl = id[ATA_ID_CYLS]; - drive->head = id[ATA_ID_HEADS]; - drive->sect = id[ATA_ID_SECTORS]; - } -} - -static void ide_disk_init_mult_count(ide_drive_t *drive) -{ - u16 *id = drive->id; - u8 max_multsect = id[ATA_ID_MAX_MULTSECT] & 0xff; - - if (max_multsect) { - if ((max_multsect / 2) > 1) - id[ATA_ID_MULTSECT] = max_multsect | 0x100; - else - id[ATA_ID_MULTSECT] &= ~0x1ff; - - drive->mult_req = id[ATA_ID_MULTSECT] & 0xff; - - if (drive->mult_req) - drive->special_flags |= IDE_SFLAG_SET_MULTMODE; - } -} - -static void ide_classify_ata_dev(ide_drive_t *drive) -{ - u16 *id = drive->id; - char *m = (char *)&id[ATA_ID_PROD]; - int is_cfa = ata_id_is_cfa(id); - - /* CF devices are *not* removable in Linux definition of the term */ - if (is_cfa == 0 && (id[ATA_ID_CONFIG] & (1 << 7))) - drive->dev_flags |= IDE_DFLAG_REMOVABLE; - - drive->media = ide_disk; - - if (!ata_id_has_unload(drive->id)) - drive->dev_flags |= IDE_DFLAG_NO_UNLOAD; - - printk(KERN_INFO "%s: %s, %s DISK drive\n", drive->name, m, - is_cfa ? "CFA" : "ATA"); -} - -static void ide_classify_atapi_dev(ide_drive_t *drive) -{ - u16 *id = drive->id; - char *m = (char *)&id[ATA_ID_PROD]; - u8 type = (id[ATA_ID_CONFIG] >> 8) & 0x1f; - - printk(KERN_INFO "%s: %s, ATAPI ", drive->name, m); - switch (type) { - case ide_floppy: - if (!strstr(m, "CD-ROM")) { - if (!strstr(m, "oppy") && - !strstr(m, "poyp") && - !strstr(m, "ZIP")) - printk(KERN_CONT "cdrom or floppy?, assuming "); - if (drive->media != ide_cdrom) { - printk(KERN_CONT "FLOPPY"); - drive->dev_flags |= IDE_DFLAG_REMOVABLE; - break; - } - } - /* Early cdrom models used zero */ - type = ide_cdrom; - fallthrough; - case ide_cdrom: - drive->dev_flags |= IDE_DFLAG_REMOVABLE; -#ifdef CONFIG_PPC - /* kludge for Apple PowerBook internal zip */ - if (!strstr(m, "CD-ROM") && strstr(m, "ZIP")) { - printk(KERN_CONT "FLOPPY"); - type = ide_floppy; - break; - } -#endif - printk(KERN_CONT "CD/DVD-ROM"); - break; - case ide_tape: - printk(KERN_CONT "TAPE"); - break; - case ide_optical: - printk(KERN_CONT "OPTICAL"); - drive->dev_flags |= IDE_DFLAG_REMOVABLE; - break; - default: - printk(KERN_CONT "UNKNOWN (type %d)", type); - break; - } - - printk(KERN_CONT " drive\n"); - drive->media = type; - /* an ATAPI device ignores DRDY */ - drive->ready_stat = 0; - if (ata_id_cdb_intr(id)) - drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT; - drive->dev_flags |= IDE_DFLAG_DOORLOCKING; - /* we don't do head unloading on ATAPI devices */ - drive->dev_flags |= IDE_DFLAG_NO_UNLOAD; -} - -/** - * do_identify - identify a drive - * @drive: drive to identify - * @cmd: command used - * @id: buffer for IDENTIFY data - * - * Called when we have issued a drive identify command to - * read and parse the results. This function is run with - * interrupts disabled. - */ - -static void do_identify(ide_drive_t *drive, u8 cmd, u16 *id) -{ - ide_hwif_t *hwif = drive->hwif; - char *m = (char *)&id[ATA_ID_PROD]; - unsigned long flags; - int bswap = 1; - - /* local CPU only; some systems need this */ - local_irq_save(flags); - /* read 512 bytes of id info */ - hwif->tp_ops->input_data(drive, NULL, id, SECTOR_SIZE); - local_irq_restore(flags); - - drive->dev_flags |= IDE_DFLAG_ID_READ; -#ifdef DEBUG - printk(KERN_INFO "%s: dumping identify data\n", drive->name); - ide_dump_identify((u8 *)id); -#endif - ide_fix_driveid(id); - - /* - * ATA_CMD_ID_ATA returns little-endian info, - * ATA_CMD_ID_ATAPI *usually* returns little-endian info. - */ - if (cmd == ATA_CMD_ID_ATAPI) { - if ((m[0] == 'N' && m[1] == 'E') || /* NEC */ - (m[0] == 'F' && m[1] == 'X') || /* Mitsumi */ - (m[0] == 'P' && m[1] == 'i')) /* Pioneer */ - /* Vertos drives may still be weird */ - bswap ^= 1; - } - - ide_fixstring(m, ATA_ID_PROD_LEN, bswap); - ide_fixstring((char *)&id[ATA_ID_FW_REV], ATA_ID_FW_REV_LEN, bswap); - ide_fixstring((char *)&id[ATA_ID_SERNO], ATA_ID_SERNO_LEN, bswap); - - /* we depend on this a lot! */ - m[ATA_ID_PROD_LEN - 1] = '\0'; - - if (strstr(m, "E X A B Y T E N E S T")) - drive->dev_flags &= ~IDE_DFLAG_PRESENT; - else - drive->dev_flags |= IDE_DFLAG_PRESENT; -} - -/** - * ide_dev_read_id - send ATA/ATAPI IDENTIFY command - * @drive: drive to identify - * @cmd: command to use - * @id: buffer for IDENTIFY data - * @irq_ctx: flag set when called from the IRQ context - * - * Sends an ATA(PI) IDENTIFY request to a drive and waits for a response. - * - * Returns: 0 device was identified - * 1 device timed-out (no response to identify request) - * 2 device aborted the command (refused to identify itself) - */ - -int ide_dev_read_id(ide_drive_t *drive, u8 cmd, u16 *id, int irq_ctx) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_io_ports *io_ports = &hwif->io_ports; - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - int use_altstatus = 0, rc; - unsigned long timeout; - u8 s = 0, a = 0; - - /* - * Disable device IRQ. Otherwise we'll get spurious interrupts - * during the identify phase that the IRQ handler isn't expecting. - */ - if (io_ports->ctl_addr) - tp_ops->write_devctl(hwif, ATA_NIEN | ATA_DEVCTL_OBS); - - /* take a deep breath */ - if (irq_ctx) - mdelay(50); - else - msleep(50); - - if (io_ports->ctl_addr && - (hwif->host_flags & IDE_HFLAG_BROKEN_ALTSTATUS) == 0) { - a = tp_ops->read_altstatus(hwif); - s = tp_ops->read_status(hwif); - if ((a ^ s) & ~ATA_SENSE) - /* ancient Seagate drives, broken interfaces */ - printk(KERN_INFO "%s: probing with STATUS(0x%02x) " - "instead of ALTSTATUS(0x%02x)\n", - drive->name, s, a); - else - /* use non-intrusive polling */ - use_altstatus = 1; - } - - /* set features register for atapi - * identify command to be sure of reply - */ - if (cmd == ATA_CMD_ID_ATAPI) { - struct ide_taskfile tf; - - memset(&tf, 0, sizeof(tf)); - /* disable DMA & overlap */ - tp_ops->tf_load(drive, &tf, IDE_VALID_FEATURE); - } - - /* ask drive for ID */ - tp_ops->exec_command(hwif, cmd); - - timeout = ((cmd == ATA_CMD_ID_ATA) ? WAIT_WORSTCASE : WAIT_PIDENTIFY) / 2; - - /* wait for IRQ and ATA_DRQ */ - if (irq_ctx) { - rc = __ide_wait_stat(drive, ATA_DRQ, BAD_R_STAT, timeout, &s); - if (rc) - return 1; - } else { - rc = ide_busy_sleep(drive, timeout, use_altstatus); - if (rc) - return 1; - - msleep(50); - s = tp_ops->read_status(hwif); - } - - if (OK_STAT(s, ATA_DRQ, BAD_R_STAT)) { - /* drive returned ID */ - do_identify(drive, cmd, id); - /* drive responded with ID */ - rc = 0; - /* clear drive IRQ */ - (void)tp_ops->read_status(hwif); - } else { - /* drive refused ID */ - rc = 2; - } - return rc; -} - -int ide_busy_sleep(ide_drive_t *drive, unsigned long timeout, int altstatus) -{ - ide_hwif_t *hwif = drive->hwif; - u8 stat; - - timeout += jiffies; - - do { - msleep(50); /* give drive a breather */ - stat = altstatus ? hwif->tp_ops->read_altstatus(hwif) - : hwif->tp_ops->read_status(hwif); - if ((stat & ATA_BUSY) == 0) - return 0; - } while (time_before(jiffies, timeout)); - - printk(KERN_ERR "%s: timeout in %s\n", drive->name, __func__); - - return 1; /* drive timed-out */ -} - -static u8 ide_read_device(ide_drive_t *drive) -{ - struct ide_taskfile tf; - - drive->hwif->tp_ops->tf_read(drive, &tf, IDE_VALID_DEVICE); - - return tf.device; -} - -/** - * do_probe - probe an IDE device - * @drive: drive to probe - * @cmd: command to use - * - * do_probe() has the difficult job of finding a drive if it exists, - * without getting hung up if it doesn't exist, without trampling on - * ethernet cards, and without leaving any IRQs dangling to haunt us later. - * - * If a drive is "known" to exist (from CMOS or kernel parameters), - * but does not respond right away, the probe will "hang in there" - * for the maximum wait time (about 30 seconds), otherwise it will - * exit much more quickly. - * - * Returns: 0 device was identified - * 1 device timed-out (no response to identify request) - * 2 device aborted the command (refused to identify itself) - * 3 bad status from device (possible for ATAPI drives) - * 4 probe was not attempted because failure was obvious - */ - -static int do_probe (ide_drive_t *drive, u8 cmd) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - u16 *id = drive->id; - int rc; - u8 present = !!(drive->dev_flags & IDE_DFLAG_PRESENT), stat; - - /* avoid waiting for inappropriate probes */ - if (present && drive->media != ide_disk && cmd == ATA_CMD_ID_ATA) - return 4; - -#ifdef DEBUG - printk(KERN_INFO "probing for %s: present=%d, media=%d, probetype=%s\n", - drive->name, present, drive->media, - (cmd == ATA_CMD_ID_ATA) ? "ATA" : "ATAPI"); -#endif - - /* needed for some systems - * (e.g. crw9624 as drive0 with disk as slave) - */ - msleep(50); - tp_ops->dev_select(drive); - msleep(50); - - if (ide_read_device(drive) != drive->select && present == 0) { - if (drive->dn & 1) { - /* exit with drive0 selected */ - tp_ops->dev_select(hwif->devices[0]); - /* allow ATA_BUSY to assert & clear */ - msleep(50); - } - /* no i/f present: mmm.. this should be a 4 -ml */ - return 3; - } - - stat = tp_ops->read_status(hwif); - - if (OK_STAT(stat, ATA_DRDY, ATA_BUSY) || - present || cmd == ATA_CMD_ID_ATAPI) { - rc = ide_dev_read_id(drive, cmd, id, 0); - if (rc) - /* failed: try again */ - rc = ide_dev_read_id(drive, cmd, id, 0); - - stat = tp_ops->read_status(hwif); - - if (stat == (ATA_BUSY | ATA_DRDY)) - return 4; - - if (rc == 1 && cmd == ATA_CMD_ID_ATAPI) { - printk(KERN_ERR "%s: no response (status = 0x%02x), " - "resetting drive\n", drive->name, stat); - msleep(50); - tp_ops->dev_select(drive); - msleep(50); - tp_ops->exec_command(hwif, ATA_CMD_DEV_RESET); - (void)ide_busy_sleep(drive, WAIT_WORSTCASE, 0); - rc = ide_dev_read_id(drive, cmd, id, 0); - } - - /* ensure drive IRQ is clear */ - stat = tp_ops->read_status(hwif); - - if (rc == 1) - printk(KERN_ERR "%s: no response (status = 0x%02x)\n", - drive->name, stat); - } else { - /* not present or maybe ATAPI */ - rc = 3; - } - if (drive->dn & 1) { - /* exit with drive0 selected */ - tp_ops->dev_select(hwif->devices[0]); - msleep(50); - /* ensure drive irq is clear */ - (void)tp_ops->read_status(hwif); - } - return rc; -} - -/** - * probe_for_drives - upper level drive probe - * @drive: drive to probe for - * - * probe_for_drive() tests for existence of a given drive using do_probe() - * and presents things to the user as needed. - * - * Returns: 0 no device was found - * 1 device was found - * (note: IDE_DFLAG_PRESENT might still be not set) - */ - -static u8 probe_for_drive(ide_drive_t *drive) -{ - char *m; - int rc; - u8 cmd; - - drive->dev_flags &= ~IDE_DFLAG_ID_READ; - - m = (char *)&drive->id[ATA_ID_PROD]; - strcpy(m, "UNKNOWN"); - - /* skip probing? */ - if ((drive->dev_flags & IDE_DFLAG_NOPROBE) == 0) { - /* if !(success||timed-out) */ - cmd = ATA_CMD_ID_ATA; - rc = do_probe(drive, cmd); - if (rc >= 2) { - /* look for ATAPI device */ - cmd = ATA_CMD_ID_ATAPI; - rc = do_probe(drive, cmd); - } - - if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) - return 0; - - /* identification failed? */ - if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) { - if (drive->media == ide_disk) { - printk(KERN_INFO "%s: non-IDE drive, CHS=%d/%d/%d\n", - drive->name, drive->cyl, - drive->head, drive->sect); - } else if (drive->media == ide_cdrom) { - printk(KERN_INFO "%s: ATAPI cdrom (?)\n", drive->name); - } else { - /* nuke it */ - printk(KERN_WARNING "%s: Unknown device on bus refused identification. Ignoring.\n", drive->name); - drive->dev_flags &= ~IDE_DFLAG_PRESENT; - } - } else { - if (cmd == ATA_CMD_ID_ATAPI) - ide_classify_atapi_dev(drive); - else - ide_classify_ata_dev(drive); - } - } - - if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) - return 0; - - /* The drive wasn't being helpful. Add generic info only */ - if ((drive->dev_flags & IDE_DFLAG_ID_READ) == 0) { - generic_id(drive); - return 1; - } - - if (drive->media == ide_disk) { - ide_disk_init_chs(drive); - ide_disk_init_mult_count(drive); - } - - return 1; -} - -static void hwif_release_dev(struct device *dev) -{ - ide_hwif_t *hwif = container_of(dev, ide_hwif_t, gendev); - - complete(&hwif->gendev_rel_comp); -} - -static int ide_register_port(ide_hwif_t *hwif) -{ - int ret; - - /* register with global device tree */ - dev_set_name(&hwif->gendev, "%s", hwif->name); - dev_set_drvdata(&hwif->gendev, hwif); - if (hwif->gendev.parent == NULL) - hwif->gendev.parent = hwif->dev; - hwif->gendev.release = hwif_release_dev; - - ret = device_register(&hwif->gendev); - if (ret < 0) { - printk(KERN_WARNING "IDE: %s: device_register error: %d\n", - __func__, ret); - goto out; - } - - hwif->portdev = device_create(ide_port_class, &hwif->gendev, - MKDEV(0, 0), hwif, "%s", hwif->name); - if (IS_ERR(hwif->portdev)) { - ret = PTR_ERR(hwif->portdev); - device_unregister(&hwif->gendev); - } -out: - return ret; -} - -/** - * ide_port_wait_ready - wait for port to become ready - * @hwif: IDE port - * - * This is needed on some PPCs and a bunch of BIOS-less embedded - * platforms. Typical cases are: - * - * - The firmware hard reset the disk before booting the kernel, - * the drive is still doing it's poweron-reset sequence, that - * can take up to 30 seconds. - * - * - The firmware does nothing (or no firmware), the device is - * still in POST state (same as above actually). - * - * - Some CD/DVD/Writer combo drives tend to drive the bus during - * their reset sequence even when they are non-selected slave - * devices, thus preventing discovery of the main HD. - * - * Doing this wait-for-non-busy should not harm any existing - * configuration and fix some issues like the above. - * - * BenH. - * - * Returns 0 on success, error code (< 0) otherwise. - */ - -static int ide_port_wait_ready(ide_hwif_t *hwif) -{ - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - ide_drive_t *drive; - int i, rc; - - printk(KERN_DEBUG "Probing IDE interface %s...\n", hwif->name); - - /* Let HW settle down a bit from whatever init state we - * come from */ - mdelay(2); - - /* Wait for BSY bit to go away, spec timeout is 30 seconds, - * I know of at least one disk who takes 31 seconds, I use 35 - * here to be safe - */ - rc = ide_wait_not_busy(hwif, 35000); - if (rc) - return rc; - - /* Now make sure both master & slave are ready */ - ide_port_for_each_dev(i, drive, hwif) { - /* Ignore disks that we will not probe for later. */ - if ((drive->dev_flags & IDE_DFLAG_NOPROBE) == 0 || - (drive->dev_flags & IDE_DFLAG_PRESENT)) { - tp_ops->dev_select(drive); - tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); - mdelay(2); - rc = ide_wait_not_busy(hwif, 35000); - if (rc) - goto out; - } else - printk(KERN_DEBUG "%s: ide_wait_not_busy() skipped\n", - drive->name); - } -out: - /* Exit function with master reselected (let's be sane) */ - if (i) - tp_ops->dev_select(hwif->devices[0]); - - return rc; -} - -/** - * ide_undecoded_slave - look for bad CF adapters - * @dev1: slave device - * - * Analyse the drives on the interface and attempt to decide if we - * have the same drive viewed twice. This occurs with crap CF adapters - * and PCMCIA sometimes. - */ - -void ide_undecoded_slave(ide_drive_t *dev1) -{ - ide_drive_t *dev0 = dev1->hwif->devices[0]; - - if ((dev1->dn & 1) == 0 || (dev0->dev_flags & IDE_DFLAG_PRESENT) == 0) - return; - - /* If the models don't match they are not the same product */ - if (strcmp((char *)&dev0->id[ATA_ID_PROD], - (char *)&dev1->id[ATA_ID_PROD])) - return; - - /* Serial numbers do not match */ - if (strncmp((char *)&dev0->id[ATA_ID_SERNO], - (char *)&dev1->id[ATA_ID_SERNO], ATA_ID_SERNO_LEN)) - return; - - /* No serial number, thankfully very rare for CF */ - if (*(char *)&dev0->id[ATA_ID_SERNO] == 0) - return; - - /* Appears to be an IDE flash adapter with decode bugs */ - printk(KERN_WARNING "ide-probe: ignoring undecoded slave\n"); - - dev1->dev_flags &= ~IDE_DFLAG_PRESENT; -} - -EXPORT_SYMBOL_GPL(ide_undecoded_slave); - -static int ide_probe_port(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - unsigned int irqd; - int i, rc = -ENODEV; - - BUG_ON(hwif->present); - - if ((hwif->devices[0]->dev_flags & IDE_DFLAG_NOPROBE) && - (hwif->devices[1]->dev_flags & IDE_DFLAG_NOPROBE)) - return -EACCES; - - /* - * We must always disable IRQ, as probe_for_drive will assert IRQ, but - * we'll install our IRQ driver much later... - */ - irqd = hwif->irq; - if (irqd) - disable_irq(hwif->irq); - - if (ide_port_wait_ready(hwif) == -EBUSY) - printk(KERN_DEBUG "%s: Wait for ready failed before probe !\n", hwif->name); - - /* - * Second drive should only exist if first drive was found, - * but a lot of cdrom drives are configured as single slaves. - */ - ide_port_for_each_dev(i, drive, hwif) { - (void) probe_for_drive(drive); - if (drive->dev_flags & IDE_DFLAG_PRESENT) - rc = 0; - } - - /* - * Use cached IRQ number. It might be (and is...) changed by probe - * code above - */ - if (irqd) - enable_irq(irqd); - - return rc; -} - -static void ide_port_tune_devices(ide_hwif_t *hwif) -{ - const struct ide_port_ops *port_ops = hwif->port_ops; - ide_drive_t *drive; - int i; - - ide_port_for_each_present_dev(i, drive, hwif) { - ide_check_nien_quirk_list(drive); - - if (port_ops && port_ops->quirkproc) - port_ops->quirkproc(drive); - } - - ide_port_for_each_present_dev(i, drive, hwif) { - ide_set_max_pio(drive); - - drive->dev_flags |= IDE_DFLAG_NICE1; - - if (hwif->dma_ops) - ide_set_dma(drive); - } -} - -static void ide_initialize_rq(struct request *rq) -{ - struct ide_request *req = blk_mq_rq_to_pdu(rq); - - req->special = NULL; - scsi_req_init(&req->sreq); - req->sreq.sense = req->sense; -} - -static const struct blk_mq_ops ide_mq_ops = { - .queue_rq = ide_queue_rq, - .initialize_rq_fn = ide_initialize_rq, -}; - -/* - * init request queue - */ -static int ide_init_queue(ide_drive_t *drive) -{ - struct request_queue *q; - ide_hwif_t *hwif = drive->hwif; - int max_sectors = 256; - int max_sg_entries = PRD_ENTRIES; - struct blk_mq_tag_set *set; - - /* - * Our default set up assumes the normal IDE case, - * that is 64K segmenting, standard PRD setup - * and LBA28. Some drivers then impose their own - * limits and LBA48 we could raise it but as yet - * do not. - */ - - set = &drive->tag_set; - set->ops = &ide_mq_ops; - set->nr_hw_queues = 1; - set->queue_depth = 32; - set->reserved_tags = 1; - set->cmd_size = sizeof(struct ide_request); - set->numa_node = hwif_to_node(hwif); - set->flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_BLOCKING; - if (blk_mq_alloc_tag_set(set)) - return 1; - - q = blk_mq_init_queue(set); - if (IS_ERR(q)) { - blk_mq_free_tag_set(set); - return 1; - } - - blk_queue_flag_set(QUEUE_FLAG_SCSI_PASSTHROUGH, q); - - q->queuedata = drive; - blk_queue_segment_boundary(q, 0xffff); - - if (hwif->rqsize < max_sectors) - max_sectors = hwif->rqsize; - blk_queue_max_hw_sectors(q, max_sectors); - -#ifdef CONFIG_PCI - /* When we have an IOMMU, we may have a problem where pci_map_sg() - * creates segments that don't completely match our boundary - * requirements and thus need to be broken up again. Because it - * doesn't align properly either, we may actually have to break up - * to more segments than what was we got in the first place, a max - * worst case is twice as many. - * This will be fixed once we teach pci_map_sg() about our boundary - * requirements, hopefully soon. *FIXME* - */ - max_sg_entries >>= 1; -#endif /* CONFIG_PCI */ - - blk_queue_max_segments(q, max_sg_entries); - - /* assign drive queue */ - drive->queue = q; - - return 0; -} - -static DEFINE_MUTEX(ide_cfg_mtx); - -/* - * For any present drive: - * - allocate the block device queue - */ -static int ide_port_setup_devices(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - int i, j = 0; - - mutex_lock(&ide_cfg_mtx); - ide_port_for_each_present_dev(i, drive, hwif) { - if (ide_init_queue(drive)) { - printk(KERN_ERR "ide: failed to init %s\n", - drive->name); - drive->dev_flags &= ~IDE_DFLAG_PRESENT; - continue; - } - - j++; - } - mutex_unlock(&ide_cfg_mtx); - - return j; -} - -static void ide_host_enable_irqs(struct ide_host *host) -{ - ide_hwif_t *hwif; - int i; - - ide_host_for_each_port(i, hwif, host) { - if (hwif == NULL) - continue; - - /* clear any pending IRQs */ - hwif->tp_ops->read_status(hwif); - - /* unmask IRQs */ - if (hwif->io_ports.ctl_addr) - hwif->tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); - } -} - -/* - * This routine sets up the IRQ for an IDE interface. - */ -static int init_irq (ide_hwif_t *hwif) -{ - struct ide_io_ports *io_ports = &hwif->io_ports; - struct ide_host *host = hwif->host; - irq_handler_t irq_handler = host->irq_handler; - int sa = host->irq_flags; - - if (irq_handler == NULL) - irq_handler = ide_intr; - - if (!host->get_lock) - if (request_irq(hwif->irq, irq_handler, sa, hwif->name, hwif)) - goto out_up; - -#if !defined(__mc68000__) - printk(KERN_INFO "%s at 0x%03lx-0x%03lx,0x%03lx on irq %d", hwif->name, - io_ports->data_addr, io_ports->status_addr, - io_ports->ctl_addr, hwif->irq); -#else - printk(KERN_INFO "%s at 0x%08lx on irq %d", hwif->name, - io_ports->data_addr, hwif->irq); -#endif /* __mc68000__ */ - if (hwif->host->host_flags & IDE_HFLAG_SERIALIZE) - printk(KERN_CONT " (serialized)"); - printk(KERN_CONT "\n"); - - return 0; -out_up: - return 1; -} - -static void ata_probe(dev_t dev) -{ - request_module("ide-disk"); - request_module("ide-cd"); - request_module("ide-tape"); - request_module("ide-floppy"); -} - -void ide_init_disk(struct gendisk *disk, ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - unsigned int unit = drive->dn & 1; - - disk->major = hwif->major; - disk->first_minor = unit << PARTN_BITS; - sprintf(disk->disk_name, "hd%c", 'a' + hwif->index * MAX_DRIVES + unit); - disk->queue = drive->queue; -} - -EXPORT_SYMBOL_GPL(ide_init_disk); - -static void drive_release_dev (struct device *dev) -{ - ide_drive_t *drive = container_of(dev, ide_drive_t, gendev); - - ide_proc_unregister_device(drive); - - if (drive->sense_rq) - blk_mq_free_request(drive->sense_rq); - - blk_cleanup_queue(drive->queue); - drive->queue = NULL; - blk_mq_free_tag_set(&drive->tag_set); - - drive->dev_flags &= ~IDE_DFLAG_PRESENT; - - complete(&drive->gendev_rel_comp); -} - -static int hwif_init(ide_hwif_t *hwif) -{ - if (!hwif->irq) { - printk(KERN_ERR "%s: disabled, no IRQ\n", hwif->name); - return 0; - } - - if (__register_blkdev(hwif->major, hwif->name, ata_probe)) - return 0; - - if (!hwif->sg_max_nents) - hwif->sg_max_nents = PRD_ENTRIES; - - hwif->sg_table = kmalloc_array(hwif->sg_max_nents, - sizeof(struct scatterlist), - GFP_KERNEL); - if (!hwif->sg_table) { - printk(KERN_ERR "%s: unable to allocate SG table.\n", hwif->name); - goto out; - } - - sg_init_table(hwif->sg_table, hwif->sg_max_nents); - - if (init_irq(hwif)) { - printk(KERN_ERR "%s: disabled, unable to get IRQ %d\n", - hwif->name, hwif->irq); - goto out; - } - - return 1; - -out: - unregister_blkdev(hwif->major, hwif->name); - return 0; -} - -static void hwif_register_devices(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - unsigned int i; - - ide_port_for_each_present_dev(i, drive, hwif) { - struct device *dev = &drive->gendev; - int ret; - - dev_set_name(dev, "%u.%u", hwif->index, i); - dev_set_drvdata(dev, drive); - dev->parent = &hwif->gendev; - dev->bus = &ide_bus_type; - dev->release = drive_release_dev; - - ret = device_register(dev); - if (ret < 0) - printk(KERN_WARNING "IDE: %s: device_register error: " - "%d\n", __func__, ret); - } -} - -static void ide_port_init_devices(ide_hwif_t *hwif) -{ - const struct ide_port_ops *port_ops = hwif->port_ops; - ide_drive_t *drive; - int i; - - ide_port_for_each_dev(i, drive, hwif) { - drive->dn = i + hwif->channel * 2; - - if (hwif->host_flags & IDE_HFLAG_IO_32BIT) - drive->io_32bit = 1; - if (hwif->host_flags & IDE_HFLAG_NO_IO_32BIT) - drive->dev_flags |= IDE_DFLAG_NO_IO_32BIT; - if (hwif->host_flags & IDE_HFLAG_UNMASK_IRQS) - drive->dev_flags |= IDE_DFLAG_UNMASK; - if (hwif->host_flags & IDE_HFLAG_NO_UNMASK_IRQS) - drive->dev_flags |= IDE_DFLAG_NO_UNMASK; - - drive->pio_mode = XFER_PIO_0; - - if (port_ops && port_ops->init_dev) - port_ops->init_dev(drive); - } -} - -static void ide_init_port(ide_hwif_t *hwif, unsigned int port, - const struct ide_port_info *d) -{ - hwif->channel = port; - - hwif->chipset = d->chipset ? d->chipset : ide_pci; - - if (d->init_iops) - d->init_iops(hwif); - - /* ->host_flags may be set by ->init_iops (or even earlier...) */ - hwif->host_flags |= d->host_flags; - hwif->pio_mask = d->pio_mask; - - if (d->tp_ops) - hwif->tp_ops = d->tp_ops; - - /* ->set_pio_mode for DTC2278 is currently limited to port 0 */ - if ((hwif->host_flags & IDE_HFLAG_DTC2278) == 0 || hwif->channel == 0) - hwif->port_ops = d->port_ops; - - hwif->swdma_mask = d->swdma_mask; - hwif->mwdma_mask = d->mwdma_mask; - hwif->ultra_mask = d->udma_mask; - - if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0) { - int rc; - - hwif->dma_ops = d->dma_ops; - - if (d->init_dma) - rc = d->init_dma(hwif, d); - else - rc = ide_hwif_setup_dma(hwif, d); - - if (rc < 0) { - printk(KERN_INFO "%s: DMA disabled\n", hwif->name); - - hwif->dma_ops = NULL; - hwif->dma_base = 0; - hwif->swdma_mask = 0; - hwif->mwdma_mask = 0; - hwif->ultra_mask = 0; - } - } - - if ((d->host_flags & IDE_HFLAG_SERIALIZE) || - ((d->host_flags & IDE_HFLAG_SERIALIZE_DMA) && hwif->dma_base)) - hwif->host->host_flags |= IDE_HFLAG_SERIALIZE; - - if (d->max_sectors) - hwif->rqsize = d->max_sectors; - else { - if ((hwif->host_flags & IDE_HFLAG_NO_LBA48) || - (hwif->host_flags & IDE_HFLAG_NO_LBA48_DMA)) - hwif->rqsize = 256; - else - hwif->rqsize = 65536; - } - - /* call chipset specific routine for each enabled port */ - if (d->init_hwif) - d->init_hwif(hwif); -} - -static void ide_port_cable_detect(ide_hwif_t *hwif) -{ - const struct ide_port_ops *port_ops = hwif->port_ops; - - if (port_ops && port_ops->cable_detect && (hwif->ultra_mask & 0x78)) { - if (hwif->cbl != ATA_CBL_PATA40_SHORT) - hwif->cbl = port_ops->cable_detect(hwif); - } -} - -/* - * Deferred request list insertion handler - */ -static void drive_rq_insert_work(struct work_struct *work) -{ - ide_drive_t *drive = container_of(work, ide_drive_t, rq_work); - ide_hwif_t *hwif = drive->hwif; - struct request *rq; - blk_status_t ret; - LIST_HEAD(list); - - blk_mq_quiesce_queue(drive->queue); - - ret = BLK_STS_OK; - spin_lock_irq(&hwif->lock); - while (!list_empty(&drive->rq_list)) { - rq = list_first_entry(&drive->rq_list, struct request, queuelist); - list_del_init(&rq->queuelist); - - spin_unlock_irq(&hwif->lock); - ret = ide_issue_rq(drive, rq, true); - spin_lock_irq(&hwif->lock); - } - spin_unlock_irq(&hwif->lock); - - blk_mq_unquiesce_queue(drive->queue); - - if (ret != BLK_STS_OK) - kblockd_schedule_work(&drive->rq_work); -} - -static const u8 ide_hwif_to_major[] = - { IDE0_MAJOR, IDE1_MAJOR, IDE2_MAJOR, IDE3_MAJOR, IDE4_MAJOR, - IDE5_MAJOR, IDE6_MAJOR, IDE7_MAJOR, IDE8_MAJOR, IDE9_MAJOR }; - -static void ide_port_init_devices_data(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - int i; - - ide_port_for_each_dev(i, drive, hwif) { - u8 j = (hwif->index * MAX_DRIVES) + i; - u16 *saved_id = drive->id; - - memset(drive, 0, sizeof(*drive)); - memset(saved_id, 0, SECTOR_SIZE); - drive->id = saved_id; - - drive->media = ide_disk; - drive->select = (i << 4) | ATA_DEVICE_OBS; - drive->hwif = hwif; - drive->ready_stat = ATA_DRDY; - drive->bad_wstat = BAD_W_STAT; - drive->special_flags = IDE_SFLAG_RECALIBRATE | - IDE_SFLAG_SET_GEOMETRY; - drive->name[0] = 'h'; - drive->name[1] = 'd'; - drive->name[2] = 'a' + j; - drive->max_failures = IDE_DEFAULT_MAX_FAILURES; - - INIT_LIST_HEAD(&drive->list); - init_completion(&drive->gendev_rel_comp); - - INIT_WORK(&drive->rq_work, drive_rq_insert_work); - INIT_LIST_HEAD(&drive->rq_list); - } -} - -static void ide_init_port_data(ide_hwif_t *hwif, unsigned int index) -{ - /* fill in any non-zero initial values */ - hwif->index = index; - hwif->major = ide_hwif_to_major[index]; - - hwif->name[0] = 'i'; - hwif->name[1] = 'd'; - hwif->name[2] = 'e'; - hwif->name[3] = '0' + index; - - spin_lock_init(&hwif->lock); - - timer_setup(&hwif->timer, ide_timer_expiry, 0); - - init_completion(&hwif->gendev_rel_comp); - - hwif->tp_ops = &default_tp_ops; - - ide_port_init_devices_data(hwif); -} - -static void ide_init_port_hw(ide_hwif_t *hwif, struct ide_hw *hw) -{ - memcpy(&hwif->io_ports, &hw->io_ports, sizeof(hwif->io_ports)); - hwif->irq = hw->irq; - hwif->dev = hw->dev; - hwif->gendev.parent = hw->parent ? hw->parent : hw->dev; - hwif->config_data = hw->config; -} - -static unsigned int ide_indexes; - -/** - * ide_find_port_slot - find free port slot - * @d: IDE port info - * - * Return the new port slot index or -ENOENT if we are out of free slots. - */ - -static int ide_find_port_slot(const struct ide_port_info *d) -{ - int idx = -ENOENT; - u8 bootable = (d && (d->host_flags & IDE_HFLAG_NON_BOOTABLE)) ? 0 : 1; - u8 i = (d && (d->host_flags & IDE_HFLAG_QD_2ND_PORT)) ? 1 : 0; - - /* - * Claim an unassigned slot. - * - * Give preference to claiming other slots before claiming ide0/ide1, - * just in case there's another interface yet-to-be-scanned - * which uses ports 0x1f0/0x170 (the ide0/ide1 defaults). - * - * Unless there is a bootable card that does not use the standard - * ports 0x1f0/0x170 (the ide0/ide1 defaults). - */ - mutex_lock(&ide_cfg_mtx); - if (bootable) { - if ((ide_indexes | i) != (1 << MAX_HWIFS) - 1) - idx = ffz(ide_indexes | i); - } else { - if ((ide_indexes | 3) != (1 << MAX_HWIFS) - 1) - idx = ffz(ide_indexes | 3); - else if ((ide_indexes & 3) != 3) - idx = ffz(ide_indexes); - } - if (idx >= 0) - ide_indexes |= (1 << idx); - mutex_unlock(&ide_cfg_mtx); - - return idx; -} - -static void ide_free_port_slot(int idx) -{ - mutex_lock(&ide_cfg_mtx); - ide_indexes &= ~(1 << idx); - mutex_unlock(&ide_cfg_mtx); -} - -static void ide_port_free_devices(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - int i; - - ide_port_for_each_dev(i, drive, hwif) { - kfree(drive->id); - kfree(drive); - } -} - -static int ide_port_alloc_devices(ide_hwif_t *hwif, int node) -{ - ide_drive_t *drive; - int i; - - for (i = 0; i < MAX_DRIVES; i++) { - drive = kzalloc_node(sizeof(*drive), GFP_KERNEL, node); - if (drive == NULL) - goto out_nomem; - - /* - * In order to keep things simple we have an id - * block for all drives at all times. If the device - * is pre ATA or refuses ATA/ATAPI identify we - * will add faked data to this. - * - * Also note that 0 everywhere means "can't do X" - */ - drive->id = kzalloc_node(SECTOR_SIZE, GFP_KERNEL, node); - if (drive->id == NULL) - goto out_free_drive; - - hwif->devices[i] = drive; - } - return 0; - -out_free_drive: - kfree(drive); -out_nomem: - ide_port_free_devices(hwif); - return -ENOMEM; -} - -struct ide_host *ide_host_alloc(const struct ide_port_info *d, - struct ide_hw **hws, unsigned int n_ports) -{ - struct ide_host *host; - struct device *dev = hws[0] ? hws[0]->dev : NULL; - int node = dev ? dev_to_node(dev) : -1; - int i; - - host = kzalloc_node(sizeof(*host), GFP_KERNEL, node); - if (host == NULL) - return NULL; - - for (i = 0; i < n_ports; i++) { - ide_hwif_t *hwif; - int idx; - - if (hws[i] == NULL) - continue; - - hwif = kzalloc_node(sizeof(*hwif), GFP_KERNEL, node); - if (hwif == NULL) - continue; - - if (ide_port_alloc_devices(hwif, node) < 0) { - kfree(hwif); - continue; - } - - idx = ide_find_port_slot(d); - if (idx < 0) { - printk(KERN_ERR "%s: no free slot for interface\n", - d ? d->name : "ide"); - ide_port_free_devices(hwif); - kfree(hwif); - continue; - } - - ide_init_port_data(hwif, idx); - - hwif->host = host; - - host->ports[i] = hwif; - host->n_ports++; - } - - if (host->n_ports == 0) { - kfree(host); - return NULL; - } - - host->dev[0] = dev; - - if (d) { - host->init_chipset = d->init_chipset; - host->get_lock = d->get_lock; - host->release_lock = d->release_lock; - host->host_flags = d->host_flags; - host->irq_flags = d->irq_flags; - } - - return host; -} -EXPORT_SYMBOL_GPL(ide_host_alloc); - -static void ide_port_free(ide_hwif_t *hwif) -{ - ide_port_free_devices(hwif); - ide_free_port_slot(hwif->index); - kfree(hwif); -} - -static void ide_disable_port(ide_hwif_t *hwif) -{ - struct ide_host *host = hwif->host; - int i; - - printk(KERN_INFO "%s: disabling port\n", hwif->name); - - for (i = 0; i < MAX_HOST_PORTS; i++) { - if (host->ports[i] == hwif) { - host->ports[i] = NULL; - host->n_ports--; - } - } - - ide_port_free(hwif); -} - -int ide_host_register(struct ide_host *host, const struct ide_port_info *d, - struct ide_hw **hws) -{ - ide_hwif_t *hwif, *mate = NULL; - int i, j = 0; - - pr_warn("legacy IDE will be removed in 2021, please switch to libata\n" - "Report any missing HW support to linux-ide@vger.kernel.org\n"); - - ide_host_for_each_port(i, hwif, host) { - if (hwif == NULL) { - mate = NULL; - continue; - } - - ide_init_port_hw(hwif, hws[i]); - ide_port_apply_params(hwif); - - if ((i & 1) && mate) { - hwif->mate = mate; - mate->mate = hwif; - } - - mate = (i & 1) ? NULL : hwif; - - ide_init_port(hwif, i & 1, d); - ide_port_cable_detect(hwif); - - hwif->port_flags |= IDE_PFLAG_PROBING; - - ide_port_init_devices(hwif); - } - - ide_host_for_each_port(i, hwif, host) { - if (hwif == NULL) - continue; - - if (ide_probe_port(hwif) == 0) - hwif->present = 1; - - hwif->port_flags &= ~IDE_PFLAG_PROBING; - - if ((hwif->host_flags & IDE_HFLAG_4DRIVES) == 0 || - hwif->mate == NULL || hwif->mate->present == 0) { - if (ide_register_port(hwif)) { - ide_disable_port(hwif); - continue; - } - } - - if (hwif->present) - ide_port_tune_devices(hwif); - } - - ide_host_enable_irqs(host); - - ide_host_for_each_port(i, hwif, host) { - if (hwif == NULL) - continue; - - if (hwif_init(hwif) == 0) { - printk(KERN_INFO "%s: failed to initialize IDE " - "interface\n", hwif->name); - device_unregister(hwif->portdev); - device_unregister(&hwif->gendev); - ide_disable_port(hwif); - continue; - } - - if (hwif->present) - if (ide_port_setup_devices(hwif) == 0) { - hwif->present = 0; - continue; - } - - j++; - - ide_acpi_init_port(hwif); - - if (hwif->present) - ide_acpi_port_init_devices(hwif); - } - - ide_host_for_each_port(i, hwif, host) { - if (hwif == NULL) - continue; - - ide_sysfs_register_port(hwif); - ide_proc_register_port(hwif); - - if (hwif->present) { - ide_proc_port_register_devices(hwif); - hwif_register_devices(hwif); - } - } - - return j ? 0 : -1; -} -EXPORT_SYMBOL_GPL(ide_host_register); - -int ide_host_add(const struct ide_port_info *d, struct ide_hw **hws, - unsigned int n_ports, struct ide_host **hostp) -{ - struct ide_host *host; - int rc; - - host = ide_host_alloc(d, hws, n_ports); - if (host == NULL) - return -ENOMEM; - - rc = ide_host_register(host, d, hws); - if (rc) { - ide_host_free(host); - return rc; - } - - if (hostp) - *hostp = host; - - return 0; -} -EXPORT_SYMBOL_GPL(ide_host_add); - -static void __ide_port_unregister_devices(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - int i; - - ide_port_for_each_present_dev(i, drive, hwif) { - device_unregister(&drive->gendev); - wait_for_completion(&drive->gendev_rel_comp); - } -} - -void ide_port_unregister_devices(ide_hwif_t *hwif) -{ - mutex_lock(&ide_cfg_mtx); - __ide_port_unregister_devices(hwif); - hwif->present = 0; - ide_port_init_devices_data(hwif); - mutex_unlock(&ide_cfg_mtx); -} -EXPORT_SYMBOL_GPL(ide_port_unregister_devices); - -/** - * ide_unregister - free an IDE interface - * @hwif: IDE interface - * - * Perform the final unregister of an IDE interface. - * - * Locking: - * The caller must not hold the IDE locks. - * - * It is up to the caller to be sure there is no pending I/O here, - * and that the interface will not be reopened (present/vanishing - * locking isn't yet done BTW). - */ - -static void ide_unregister(ide_hwif_t *hwif) -{ - mutex_lock(&ide_cfg_mtx); - - if (hwif->present) { - __ide_port_unregister_devices(hwif); - hwif->present = 0; - } - - ide_proc_unregister_port(hwif); - - if (!hwif->host->get_lock) - free_irq(hwif->irq, hwif); - - device_unregister(hwif->portdev); - device_unregister(&hwif->gendev); - wait_for_completion(&hwif->gendev_rel_comp); - - /* - * Remove us from the kernel's knowledge - */ - kfree(hwif->sg_table); - unregister_blkdev(hwif->major, hwif->name); - - ide_release_dma_engine(hwif); - - mutex_unlock(&ide_cfg_mtx); -} - -void ide_host_free(struct ide_host *host) -{ - ide_hwif_t *hwif; - int i; - - ide_host_for_each_port(i, hwif, host) { - if (hwif) - ide_port_free(hwif); - } - - kfree(host); -} -EXPORT_SYMBOL_GPL(ide_host_free); - -void ide_host_remove(struct ide_host *host) -{ - ide_hwif_t *hwif; - int i; - - ide_host_for_each_port(i, hwif, host) { - if (hwif) - ide_unregister(hwif); - } - - ide_host_free(host); -} -EXPORT_SYMBOL_GPL(ide_host_remove); - -void ide_port_scan(ide_hwif_t *hwif) -{ - int rc; - - ide_port_apply_params(hwif); - ide_port_cable_detect(hwif); - - hwif->port_flags |= IDE_PFLAG_PROBING; - - ide_port_init_devices(hwif); - - rc = ide_probe_port(hwif); - - hwif->port_flags &= ~IDE_PFLAG_PROBING; - - if (rc < 0) - return; - - hwif->present = 1; - - ide_port_tune_devices(hwif); - ide_port_setup_devices(hwif); - ide_acpi_port_init_devices(hwif); - hwif_register_devices(hwif); - ide_proc_port_register_devices(hwif); -} -EXPORT_SYMBOL_GPL(ide_port_scan); diff --git a/drivers/ide/ide-proc.c b/drivers/ide/ide-proc.c deleted file mode 100644 index 15c17f3781ee..000000000000 --- a/drivers/ide/ide-proc.c +++ /dev/null @@ -1,633 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1997-1998 Mark Lord - * Copyright (C) 2003 Red Hat - * - * Some code was moved here from ide.c, see it for original copyrights. - */ - -/* - * This is the /proc/ide/ filesystem implementation. - * - * Drive/Driver settings can be retrieved by reading the drive's - * "settings" files. e.g. "cat /proc/ide0/hda/settings" - * To write a new value "val" into a specific setting "name", use: - * echo "name:val" >/proc/ide/ide0/hda/settings - */ - -#include <linux/module.h> - -#include <linux/uaccess.h> -#include <linux/errno.h> -#include <linux/proc_fs.h> -#include <linux/stat.h> -#include <linux/mm.h> -#include <linux/pci.h> -#include <linux/ctype.h> -#include <linux/ide.h> -#include <linux/seq_file.h> -#include <linux/slab.h> - -#include <asm/io.h> - -static struct proc_dir_entry *proc_ide_root; - -static int ide_imodel_proc_show(struct seq_file *m, void *v) -{ - ide_hwif_t *hwif = (ide_hwif_t *) m->private; - const char *name; - - switch (hwif->chipset) { - case ide_generic: name = "generic"; break; - case ide_pci: name = "pci"; break; - case ide_cmd640: name = "cmd640"; break; - case ide_dtc2278: name = "dtc2278"; break; - case ide_ali14xx: name = "ali14xx"; break; - case ide_qd65xx: name = "qd65xx"; break; - case ide_umc8672: name = "umc8672"; break; - case ide_ht6560b: name = "ht6560b"; break; - case ide_4drives: name = "4drives"; break; - case ide_pmac: name = "mac-io"; break; - case ide_au1xxx: name = "au1xxx"; break; - case ide_palm3710: name = "palm3710"; break; - case ide_acorn: name = "acorn"; break; - default: name = "(unknown)"; break; - } - seq_printf(m, "%s\n", name); - return 0; -} - -static int ide_mate_proc_show(struct seq_file *m, void *v) -{ - ide_hwif_t *hwif = (ide_hwif_t *) m->private; - - if (hwif && hwif->mate) - seq_printf(m, "%s\n", hwif->mate->name); - else - seq_printf(m, "(none)\n"); - return 0; -} - -static int ide_channel_proc_show(struct seq_file *m, void *v) -{ - ide_hwif_t *hwif = (ide_hwif_t *) m->private; - - seq_printf(m, "%c\n", hwif->channel ? '1' : '0'); - return 0; -} - -static int ide_identify_proc_show(struct seq_file *m, void *v) -{ - ide_drive_t *drive = (ide_drive_t *)m->private; - u8 *buf; - - if (!drive) { - seq_putc(m, '\n'); - return 0; - } - - buf = kmalloc(SECTOR_SIZE, GFP_KERNEL); - if (!buf) - return -ENOMEM; - if (taskfile_lib_get_identify(drive, buf) == 0) { - __le16 *val = (__le16 *)buf; - int i; - - for (i = 0; i < SECTOR_SIZE / 2; i++) { - seq_printf(m, "%04x%c", le16_to_cpu(val[i]), - (i % 8) == 7 ? '\n' : ' '); - } - } else - seq_putc(m, buf[0]); - kfree(buf); - return 0; -} - -/** - * ide_find_setting - find a specific setting - * @st: setting table pointer - * @name: setting name - * - * Scan's the setting table for a matching entry and returns - * this or NULL if no entry is found. The caller must hold the - * setting semaphore - */ - -static -const struct ide_proc_devset *ide_find_setting(const struct ide_proc_devset *st, - char *name) -{ - while (st->name) { - if (strcmp(st->name, name) == 0) - break; - st++; - } - return st->name ? st : NULL; -} - -/** - * ide_read_setting - read an IDE setting - * @drive: drive to read from - * @setting: drive setting - * - * Read a drive setting and return the value. The caller - * must hold the ide_setting_mtx when making this call. - * - * BUGS: the data return and error are the same return value - * so an error -EINVAL and true return of the same value cannot - * be told apart - */ - -static int ide_read_setting(ide_drive_t *drive, - const struct ide_proc_devset *setting) -{ - const struct ide_devset *ds = setting->setting; - int val = -EINVAL; - - if (ds->get) - val = ds->get(drive); - - return val; -} - -/** - * ide_write_setting - read an IDE setting - * @drive: drive to read from - * @setting: drive setting - * @val: value - * - * Write a drive setting if it is possible. The caller - * must hold the ide_setting_mtx when making this call. - * - * BUGS: the data return and error are the same return value - * so an error -EINVAL and true return of the same value cannot - * be told apart - * - * FIXME: This should be changed to enqueue a special request - * to the driver to change settings, and then wait on a sema for completion. - * The current scheme of polling is kludgy, though safe enough. - */ - -static int ide_write_setting(ide_drive_t *drive, - const struct ide_proc_devset *setting, int val) -{ - const struct ide_devset *ds = setting->setting; - - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - if (!ds->set) - return -EPERM; - if ((ds->flags & DS_SYNC) - && (val < setting->min || val > setting->max)) - return -EINVAL; - return ide_devset_execute(drive, ds, val); -} - -ide_devset_get(xfer_rate, current_speed); - -static int set_xfer_rate (ide_drive_t *drive, int arg) -{ - struct ide_cmd cmd; - - if (arg < XFER_PIO_0 || arg > XFER_UDMA_6) - return -EINVAL; - - memset(&cmd, 0, sizeof(cmd)); - cmd.tf.command = ATA_CMD_SET_FEATURES; - cmd.tf.feature = SETFEATURES_XFER; - cmd.tf.nsect = (u8)arg; - cmd.valid.out.tf = IDE_VALID_FEATURE | IDE_VALID_NSECT; - cmd.valid.in.tf = IDE_VALID_NSECT; - cmd.tf_flags = IDE_TFLAG_SET_XFER; - - return ide_no_data_taskfile(drive, &cmd); -} - -ide_devset_rw(current_speed, xfer_rate); -ide_devset_rw_field(init_speed, init_speed); -ide_devset_rw_flag(nice1, IDE_DFLAG_NICE1); -ide_devset_ro_field(number, dn); - -static const struct ide_proc_devset ide_generic_settings[] = { - IDE_PROC_DEVSET(current_speed, 0, 70), - IDE_PROC_DEVSET(init_speed, 0, 70), - IDE_PROC_DEVSET(io_32bit, 0, 1 + (SUPPORT_VLB_SYNC << 1)), - IDE_PROC_DEVSET(keepsettings, 0, 1), - IDE_PROC_DEVSET(nice1, 0, 1), - IDE_PROC_DEVSET(number, 0, 3), - IDE_PROC_DEVSET(pio_mode, 0, 255), - IDE_PROC_DEVSET(unmaskirq, 0, 1), - IDE_PROC_DEVSET(using_dma, 0, 1), - { NULL }, -}; - -static void proc_ide_settings_warn(void) -{ - printk_once(KERN_WARNING "Warning: /proc/ide/hd?/settings interface is " - "obsolete, and will be removed soon!\n"); -} - -static int ide_settings_proc_show(struct seq_file *m, void *v) -{ - const struct ide_proc_devset *setting, *g, *d; - const struct ide_devset *ds; - ide_drive_t *drive = (ide_drive_t *) m->private; - int rc, mul_factor, div_factor; - - proc_ide_settings_warn(); - - mutex_lock(&ide_setting_mtx); - g = ide_generic_settings; - d = drive->settings; - seq_printf(m, "name\t\t\tvalue\t\tmin\t\tmax\t\tmode\n"); - seq_printf(m, "----\t\t\t-----\t\t---\t\t---\t\t----\n"); - while (g->name || (d && d->name)) { - /* read settings in the alphabetical order */ - if (g->name && d && d->name) { - if (strcmp(d->name, g->name) < 0) - setting = d++; - else - setting = g++; - } else if (d && d->name) { - setting = d++; - } else - setting = g++; - mul_factor = setting->mulf ? setting->mulf(drive) : 1; - div_factor = setting->divf ? setting->divf(drive) : 1; - seq_printf(m, "%-24s", setting->name); - rc = ide_read_setting(drive, setting); - if (rc >= 0) - seq_printf(m, "%-16d", rc * mul_factor / div_factor); - else - seq_printf(m, "%-16s", "write-only"); - seq_printf(m, "%-16d%-16d", (setting->min * mul_factor + div_factor - 1) / div_factor, setting->max * mul_factor / div_factor); - ds = setting->setting; - if (ds->get) - seq_printf(m, "r"); - if (ds->set) - seq_printf(m, "w"); - seq_printf(m, "\n"); - } - mutex_unlock(&ide_setting_mtx); - return 0; -} - -static int ide_settings_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ide_settings_proc_show, PDE_DATA(inode)); -} - -#define MAX_LEN 30 - -static ssize_t ide_settings_proc_write(struct file *file, const char __user *buffer, - size_t count, loff_t *pos) -{ - ide_drive_t *drive = PDE_DATA(file_inode(file)); - char name[MAX_LEN + 1]; - int for_real = 0, mul_factor, div_factor; - unsigned long n; - - const struct ide_proc_devset *setting; - char *buf, *s; - - if (!capable(CAP_SYS_ADMIN)) - return -EACCES; - - proc_ide_settings_warn(); - - if (count >= PAGE_SIZE) - return -EINVAL; - - s = buf = (char *)__get_free_page(GFP_USER); - if (!buf) - return -ENOMEM; - - if (copy_from_user(buf, buffer, count)) { - free_page((unsigned long)buf); - return -EFAULT; - } - - buf[count] = '\0'; - - /* - * Skip over leading whitespace - */ - while (count && isspace(*s)) { - --count; - ++s; - } - /* - * Do one full pass to verify all parameters, - * then do another to actually write the new settings. - */ - do { - char *p = s; - n = count; - while (n > 0) { - unsigned val; - char *q = p; - - while (n > 0 && *p != ':') { - --n; - p++; - } - if (*p != ':') - goto parse_error; - if (p - q > MAX_LEN) - goto parse_error; - memcpy(name, q, p - q); - name[p - q] = 0; - - if (n > 0) { - --n; - p++; - } else - goto parse_error; - - val = simple_strtoul(p, &q, 10); - n -= q - p; - p = q; - if (n > 0 && !isspace(*p)) - goto parse_error; - while (n > 0 && isspace(*p)) { - --n; - ++p; - } - - mutex_lock(&ide_setting_mtx); - /* generic settings first, then driver specific ones */ - setting = ide_find_setting(ide_generic_settings, name); - if (!setting) { - if (drive->settings) - setting = ide_find_setting(drive->settings, name); - if (!setting) { - mutex_unlock(&ide_setting_mtx); - goto parse_error; - } - } - if (for_real) { - mul_factor = setting->mulf ? setting->mulf(drive) : 1; - div_factor = setting->divf ? setting->divf(drive) : 1; - ide_write_setting(drive, setting, val * div_factor / mul_factor); - } - mutex_unlock(&ide_setting_mtx); - } - } while (!for_real++); - free_page((unsigned long)buf); - return count; -parse_error: - free_page((unsigned long)buf); - printk("%s(): parse error\n", __func__); - return -EINVAL; -} - -static const struct proc_ops ide_settings_proc_ops = { - .proc_open = ide_settings_proc_open, - .proc_read = seq_read, - .proc_lseek = seq_lseek, - .proc_release = single_release, - .proc_write = ide_settings_proc_write, -}; - -int ide_capacity_proc_show(struct seq_file *m, void *v) -{ - seq_printf(m, "%llu\n", (long long)0x7fffffff); - return 0; -} -EXPORT_SYMBOL_GPL(ide_capacity_proc_show); - -int ide_geometry_proc_show(struct seq_file *m, void *v) -{ - ide_drive_t *drive = (ide_drive_t *) m->private; - - seq_printf(m, "physical %d/%d/%d\n", - drive->cyl, drive->head, drive->sect); - seq_printf(m, "logical %d/%d/%d\n", - drive->bios_cyl, drive->bios_head, drive->bios_sect); - return 0; -} -EXPORT_SYMBOL(ide_geometry_proc_show); - -static int ide_dmodel_proc_show(struct seq_file *seq, void *v) -{ - ide_drive_t *drive = (ide_drive_t *) seq->private; - char *m = (char *)&drive->id[ATA_ID_PROD]; - - seq_printf(seq, "%.40s\n", m[0] ? m : "(none)"); - return 0; -} - -static int ide_driver_proc_show(struct seq_file *m, void *v) -{ - ide_drive_t *drive = (ide_drive_t *)m->private; - struct device *dev = &drive->gendev; - struct ide_driver *ide_drv; - - if (dev->driver) { - ide_drv = to_ide_driver(dev->driver); - seq_printf(m, "%s version %s\n", - dev->driver->name, ide_drv->version); - } else - seq_printf(m, "ide-default version 0.9.newide\n"); - return 0; -} - -static int ide_media_proc_show(struct seq_file *m, void *v) -{ - ide_drive_t *drive = (ide_drive_t *) m->private; - const char *media; - - switch (drive->media) { - case ide_disk: media = "disk\n"; break; - case ide_cdrom: media = "cdrom\n"; break; - case ide_tape: media = "tape\n"; break; - case ide_floppy: media = "floppy\n"; break; - case ide_optical: media = "optical\n"; break; - default: media = "UNKNOWN\n"; break; - } - seq_puts(m, media); - return 0; -} - -static int ide_media_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, ide_media_proc_show, PDE_DATA(inode)); -} - -static const struct file_operations ide_media_proc_fops = { - .owner = THIS_MODULE, - .open = ide_media_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static ide_proc_entry_t generic_drive_entries[] = { - { "driver", S_IFREG|S_IRUGO, ide_driver_proc_show }, - { "identify", S_IFREG|S_IRUSR, ide_identify_proc_show }, - { "media", S_IFREG|S_IRUGO, ide_media_proc_show }, - { "model", S_IFREG|S_IRUGO, ide_dmodel_proc_show }, - {} -}; - -static void ide_add_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p, void *data) -{ - struct proc_dir_entry *ent; - - if (!dir || !p) - return; - while (p->name != NULL) { - ent = proc_create_single_data(p->name, p->mode, dir, p->show, data); - if (!ent) return; - p++; - } -} - -static void ide_remove_proc_entries(struct proc_dir_entry *dir, ide_proc_entry_t *p) -{ - if (!dir || !p) - return; - while (p->name != NULL) { - remove_proc_entry(p->name, dir); - p++; - } -} - -void ide_proc_register_driver(ide_drive_t *drive, struct ide_driver *driver) -{ - mutex_lock(&ide_setting_mtx); - drive->settings = driver->proc_devsets(drive); - mutex_unlock(&ide_setting_mtx); - - ide_add_proc_entries(drive->proc, driver->proc_entries(drive), drive); -} - -EXPORT_SYMBOL(ide_proc_register_driver); - -/** - * ide_proc_unregister_driver - remove driver specific data - * @drive: drive - * @driver: driver - * - * Clean up the driver specific /proc files and IDE settings - * for a given drive. - * - * Takes ide_setting_mtx. - */ - -void ide_proc_unregister_driver(ide_drive_t *drive, struct ide_driver *driver) -{ - ide_remove_proc_entries(drive->proc, driver->proc_entries(drive)); - - mutex_lock(&ide_setting_mtx); - /* - * ide_setting_mtx protects both the settings list and the use - * of settings (we cannot take a setting out that is being used). - */ - drive->settings = NULL; - mutex_unlock(&ide_setting_mtx); -} -EXPORT_SYMBOL(ide_proc_unregister_driver); - -void ide_proc_port_register_devices(ide_hwif_t *hwif) -{ - struct proc_dir_entry *ent; - struct proc_dir_entry *parent = hwif->proc; - ide_drive_t *drive; - char name[64]; - int i; - - ide_port_for_each_dev(i, drive, hwif) { - if ((drive->dev_flags & IDE_DFLAG_PRESENT) == 0) - continue; - - drive->proc = proc_mkdir(drive->name, parent); - if (drive->proc) { - ide_add_proc_entries(drive->proc, generic_drive_entries, drive); - proc_create_data("settings", S_IFREG|S_IRUSR|S_IWUSR, - drive->proc, &ide_settings_proc_ops, - drive); - } - sprintf(name, "ide%d/%s", (drive->name[2]-'a')/2, drive->name); - ent = proc_symlink(drive->name, proc_ide_root, name); - if (!ent) return; - } -} - -void ide_proc_unregister_device(ide_drive_t *drive) -{ - if (drive->proc) { - remove_proc_entry("settings", drive->proc); - ide_remove_proc_entries(drive->proc, generic_drive_entries); - remove_proc_entry(drive->name, proc_ide_root); - remove_proc_entry(drive->name, drive->hwif->proc); - drive->proc = NULL; - } -} - -static ide_proc_entry_t hwif_entries[] = { - { "channel", S_IFREG|S_IRUGO, ide_channel_proc_show }, - { "mate", S_IFREG|S_IRUGO, ide_mate_proc_show }, - { "model", S_IFREG|S_IRUGO, ide_imodel_proc_show }, - {} -}; - -void ide_proc_register_port(ide_hwif_t *hwif) -{ - if (!hwif->proc) { - hwif->proc = proc_mkdir(hwif->name, proc_ide_root); - - if (!hwif->proc) - return; - - ide_add_proc_entries(hwif->proc, hwif_entries, hwif); - } -} - -void ide_proc_unregister_port(ide_hwif_t *hwif) -{ - if (hwif->proc) { - ide_remove_proc_entries(hwif->proc, hwif_entries); - remove_proc_entry(hwif->name, proc_ide_root); - hwif->proc = NULL; - } -} - -static int proc_print_driver(struct device_driver *drv, void *data) -{ - struct ide_driver *ide_drv = to_ide_driver(drv); - struct seq_file *s = data; - - seq_printf(s, "%s version %s\n", drv->name, ide_drv->version); - - return 0; -} - -static int ide_drivers_show(struct seq_file *s, void *p) -{ - int err; - - err = bus_for_each_drv(&ide_bus_type, NULL, s, proc_print_driver); - if (err < 0) - printk(KERN_WARNING "IDE: %s: bus_for_each_drv error: %d\n", - __func__, err); - return 0; -} - -DEFINE_PROC_SHOW_ATTRIBUTE(ide_drivers); - -void proc_ide_create(void) -{ - proc_ide_root = proc_mkdir("ide", NULL); - - if (!proc_ide_root) - return; - - proc_create("drivers", 0, proc_ide_root, &ide_drivers_proc_ops); -} - -void proc_ide_destroy(void) -{ - remove_proc_entry("drivers", proc_ide_root); - remove_proc_entry("ide", NULL); -} diff --git a/drivers/ide/ide-scan-pci.c b/drivers/ide/ide-scan-pci.c deleted file mode 100644 index b0411a1827a3..000000000000 --- a/drivers/ide/ide-scan-pci.c +++ /dev/null @@ -1,113 +0,0 @@ -/* - * support for probing IDE PCI devices in the PCI bus order - * - * Copyright (c) 1998-2000 Andre Hedrick <andre@linux-ide.org> - * Copyright (c) 1995-1998 Mark Lord - * - * May be copied or modified under the terms of the GNU General Public License - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/ide.h> - -/* - * Module interfaces - */ - -static int pre_init = 1; /* Before first ordered IDE scan */ -static LIST_HEAD(ide_pci_drivers); - -/* - * __ide_pci_register_driver - attach IDE driver - * @driver: pci driver - * @module: owner module of the driver - * - * Registers a driver with the IDE layer. The IDE layer arranges that - * boot time setup is done in the expected device order and then - * hands the controllers off to the core PCI code to do the rest of - * the work. - * - * Returns are the same as for pci_register_driver - */ - -int __ide_pci_register_driver(struct pci_driver *driver, struct module *module, - const char *mod_name) -{ - if (!pre_init) - return __pci_register_driver(driver, module, mod_name); - driver->driver.owner = module; - list_add_tail(&driver->node, &ide_pci_drivers); - return 0; -} -EXPORT_SYMBOL_GPL(__ide_pci_register_driver); - -/** - * ide_scan_pcidev - find an IDE driver for a device - * @dev: PCI device to check - * - * Look for an IDE driver to handle the device we are considering. - * This is only used during boot up to get the ordering correct. After - * boot up the pci layer takes over the job. - */ - -static int __init ide_scan_pcidev(struct pci_dev *dev) -{ - struct list_head *l; - struct pci_driver *d; - int ret; - - list_for_each(l, &ide_pci_drivers) { - d = list_entry(l, struct pci_driver, node); - if (d->id_table) { - const struct pci_device_id *id = - pci_match_id(d->id_table, dev); - - if (id != NULL) { - pci_assign_irq(dev); - ret = d->probe(dev, id); - if (ret >= 0) { - dev->driver = d; - pci_dev_get(dev); - return 1; - } - } - } - } - return 0; -} - -/** - * ide_scan_pcibus - perform the initial IDE driver scan - * - * Perform the initial bus rather than driver ordered scan of the - * PCI drivers. After this all IDE pci handling becomes standard - * module ordering not traditionally ordered. - */ - -static int __init ide_scan_pcibus(void) -{ - struct pci_dev *dev = NULL; - struct pci_driver *d, *tmp; - - pre_init = 0; - for_each_pci_dev(dev) - ide_scan_pcidev(dev); - - /* - * Hand the drivers over to the PCI layer now we - * are post init. - */ - - list_for_each_entry_safe(d, tmp, &ide_pci_drivers, node) { - list_del(&d->node); - if (__pci_register_driver(d, d->driver.owner, - d->driver.mod_name)) - printk(KERN_ERR "%s: failed to register %s driver\n", - __func__, d->driver.mod_name); - } - - return 0; -} -device_initcall(ide_scan_pcibus); diff --git a/drivers/ide/ide-sysfs.c b/drivers/ide/ide-sysfs.c deleted file mode 100644 index c08a8a0916e2..000000000000 --- a/drivers/ide/ide-sysfs.c +++ /dev/null @@ -1,143 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <linux/kernel.h> -#include <linux/ide.h> - -char *ide_media_string(ide_drive_t *drive) -{ - switch (drive->media) { - case ide_disk: - return "disk"; - case ide_cdrom: - return "cdrom"; - case ide_tape: - return "tape"; - case ide_floppy: - return "floppy"; - case ide_optical: - return "optical"; - default: - return "UNKNOWN"; - } -} - -static ssize_t media_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - ide_drive_t *drive = to_ide_device(dev); - return sprintf(buf, "%s\n", ide_media_string(drive)); -} -static DEVICE_ATTR_RO(media); - -static ssize_t drivename_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - ide_drive_t *drive = to_ide_device(dev); - return sprintf(buf, "%s\n", drive->name); -} -static DEVICE_ATTR_RO(drivename); - -static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - ide_drive_t *drive = to_ide_device(dev); - return sprintf(buf, "ide:m-%s\n", ide_media_string(drive)); -} -static DEVICE_ATTR_RO(modalias); - -static ssize_t model_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - ide_drive_t *drive = to_ide_device(dev); - return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_PROD]); -} -static DEVICE_ATTR_RO(model); - -static ssize_t firmware_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - ide_drive_t *drive = to_ide_device(dev); - return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_FW_REV]); -} -static DEVICE_ATTR_RO(firmware); - -static ssize_t serial_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - ide_drive_t *drive = to_ide_device(dev); - return sprintf(buf, "%s\n", (char *)&drive->id[ATA_ID_SERNO]); -} -static DEVICE_ATTR(serial, 0400, serial_show, NULL); - -static DEVICE_ATTR(unload_heads, 0644, ide_park_show, ide_park_store); - -static struct attribute *ide_attrs[] = { - &dev_attr_media.attr, - &dev_attr_drivename.attr, - &dev_attr_modalias.attr, - &dev_attr_model.attr, - &dev_attr_firmware.attr, - &dev_attr_serial.attr, - &dev_attr_unload_heads.attr, - NULL, -}; - -static const struct attribute_group ide_attr_group = { - .attrs = ide_attrs, -}; - -const struct attribute_group *ide_dev_groups[] = { - &ide_attr_group, - NULL, -}; - -static ssize_t store_delete_devices(struct device *portdev, - struct device_attribute *attr, - const char *buf, size_t n) -{ - ide_hwif_t *hwif = dev_get_drvdata(portdev); - - if (strncmp(buf, "1", n)) - return -EINVAL; - - ide_port_unregister_devices(hwif); - - return n; -}; - -static DEVICE_ATTR(delete_devices, S_IWUSR, NULL, store_delete_devices); - -static ssize_t store_scan(struct device *portdev, - struct device_attribute *attr, - const char *buf, size_t n) -{ - ide_hwif_t *hwif = dev_get_drvdata(portdev); - - if (strncmp(buf, "1", n)) - return -EINVAL; - - ide_port_unregister_devices(hwif); - ide_port_scan(hwif); - - return n; -}; - -static DEVICE_ATTR(scan, S_IWUSR, NULL, store_scan); - -static struct device_attribute *ide_port_attrs[] = { - &dev_attr_delete_devices, - &dev_attr_scan, - NULL -}; - -int ide_sysfs_register_port(ide_hwif_t *hwif) -{ - int i, rc; - - for (i = 0; ide_port_attrs[i]; i++) { - rc = device_create_file(hwif->portdev, ide_port_attrs[i]); - if (rc) - break; - } - - return rc; -} diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c deleted file mode 100644 index fa05e7e7d609..000000000000 --- a/drivers/ide/ide-tape.c +++ /dev/null @@ -1,2083 +0,0 @@ -/* - * IDE ATAPI streaming tape driver. - * - * Copyright (C) 1995-1999 Gadi Oxman <gadio@netvision.net.il> - * Copyright (C) 2003-2005 Bartlomiej Zolnierkiewicz - * - * This driver was constructed as a student project in the software laboratory - * of the faculty of electrical engineering in the Technion - Israel's - * Institute Of Technology, with the guide of Avner Lottem and Dr. Ilana David. - * - * It is hereby placed under the terms of the GNU general public license. - * (See linux/COPYING). - * - * For a historical changelog see - * Documentation/ide/ChangeLog.ide-tape.1995-2002 - */ - -#define DRV_NAME "ide-tape" - -#define IDETAPE_VERSION "1.20" - -#include <linux/compat.h> -#include <linux/module.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/interrupt.h> -#include <linux/jiffies.h> -#include <linux/major.h> -#include <linux/errno.h> -#include <linux/genhd.h> -#include <linux/seq_file.h> -#include <linux/slab.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/completion.h> -#include <linux/bitops.h> -#include <linux/mutex.h> -#include <scsi/scsi.h> - -#include <asm/byteorder.h> -#include <linux/uaccess.h> -#include <linux/io.h> -#include <asm/unaligned.h> -#include <linux/mtio.h> - -/* define to see debug info */ -#undef IDETAPE_DEBUG_LOG - -#ifdef IDETAPE_DEBUG_LOG -#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, ## args) -#else -#define ide_debug_log(lvl, fmt, args...) do {} while (0) -#endif - -/**************************** Tunable parameters *****************************/ -/* - * After each failed packet command we issue a request sense command and retry - * the packet command IDETAPE_MAX_PC_RETRIES times. - * - * Setting IDETAPE_MAX_PC_RETRIES to 0 will disable retries. - */ -#define IDETAPE_MAX_PC_RETRIES 3 - -/* - * The following parameter is used to select the point in the internal tape fifo - * in which we will start to refill the buffer. Decreasing the following - * parameter will improve the system's latency and interactive response, while - * using a high value might improve system throughput. - */ -#define IDETAPE_FIFO_THRESHOLD 2 - -/* - * DSC polling parameters. - * - * Polling for DSC (a single bit in the status register) is a very important - * function in ide-tape. There are two cases in which we poll for DSC: - * - * 1. Before a read/write packet command, to ensure that we can transfer data - * from/to the tape's data buffers, without causing an actual media access. - * In case the tape is not ready yet, we take out our request from the device - * request queue, so that ide.c could service requests from the other device - * on the same interface in the meantime. - * - * 2. After the successful initialization of a "media access packet command", - * which is a command that can take a long time to complete (the interval can - * range from several seconds to even an hour). Again, we postpone our request - * in the middle to free the bus for the other device. The polling frequency - * here should be lower than the read/write frequency since those media access - * commands are slow. We start from a "fast" frequency - IDETAPE_DSC_MA_FAST - * (1 second), and if we don't receive DSC after IDETAPE_DSC_MA_THRESHOLD - * (5 min), we switch it to a lower frequency - IDETAPE_DSC_MA_SLOW (1 min). - * - * We also set a timeout for the timer, in case something goes wrong. The - * timeout should be longer then the maximum execution time of a tape operation. - */ - -/* DSC timings. */ -#define IDETAPE_DSC_RW_MIN 5*HZ/100 /* 50 msec */ -#define IDETAPE_DSC_RW_MAX 40*HZ/100 /* 400 msec */ -#define IDETAPE_DSC_RW_TIMEOUT 2*60*HZ /* 2 minutes */ -#define IDETAPE_DSC_MA_FAST 2*HZ /* 2 seconds */ -#define IDETAPE_DSC_MA_THRESHOLD 5*60*HZ /* 5 minutes */ -#define IDETAPE_DSC_MA_SLOW 30*HZ /* 30 seconds */ -#define IDETAPE_DSC_MA_TIMEOUT 2*60*60*HZ /* 2 hours */ - -/*************************** End of tunable parameters ***********************/ - -/* tape directions */ -enum { - IDETAPE_DIR_NONE = (1 << 0), - IDETAPE_DIR_READ = (1 << 1), - IDETAPE_DIR_WRITE = (1 << 2), -}; - -/* Tape door status */ -#define DOOR_UNLOCKED 0 -#define DOOR_LOCKED 1 -#define DOOR_EXPLICITLY_LOCKED 2 - -/* Some defines for the SPACE command */ -#define IDETAPE_SPACE_OVER_FILEMARK 1 -#define IDETAPE_SPACE_TO_EOD 3 - -/* Some defines for the LOAD UNLOAD command */ -#define IDETAPE_LU_LOAD_MASK 1 -#define IDETAPE_LU_RETENSION_MASK 2 -#define IDETAPE_LU_EOT_MASK 4 - -/* Structures related to the SELECT SENSE / MODE SENSE packet commands. */ -#define IDETAPE_BLOCK_DESCRIPTOR 0 -#define IDETAPE_CAPABILITIES_PAGE 0x2a - -/* - * Most of our global data which we need to save even as we leave the driver due - * to an interrupt or a timer event is stored in the struct defined below. - */ -typedef struct ide_tape_obj { - ide_drive_t *drive; - struct ide_driver *driver; - struct gendisk *disk; - struct device dev; - - /* used by REQ_IDETAPE_{READ,WRITE} requests */ - struct ide_atapi_pc queued_pc; - - /* - * DSC polling variables. - * - * While polling for DSC we use postponed_rq to postpone the current - * request so that ide.c will be able to service pending requests on the - * other device. Note that at most we will have only one DSC (usually - * data transfer) request in the device request queue. - */ - bool postponed_rq; - - /* The time in which we started polling for DSC */ - unsigned long dsc_polling_start; - /* Timer used to poll for dsc */ - struct timer_list dsc_timer; - /* Read/Write dsc polling frequency */ - unsigned long best_dsc_rw_freq; - unsigned long dsc_poll_freq; - unsigned long dsc_timeout; - - /* Read position information */ - u8 partition; - /* Current block */ - unsigned int first_frame; - - /* Last error information */ - u8 sense_key, asc, ascq; - - /* Character device operation */ - unsigned int minor; - /* device name */ - char name[4]; - /* Current character device data transfer direction */ - u8 chrdev_dir; - - /* tape block size, usually 512 or 1024 bytes */ - unsigned short blk_size; - int user_bs_factor; - - /* Copy of the tape's Capabilities and Mechanical Page */ - u8 caps[20]; - - /* - * Active data transfer request parameters. - * - * At most, there is only one ide-tape originated data transfer request - * in the device request queue. This allows ide.c to easily service - * requests from the other device when we postpone our active request. - */ - - /* Data buffer size chosen based on the tape's recommendation */ - int buffer_size; - /* Staging buffer of buffer_size bytes */ - void *buf; - /* The read/write cursor */ - void *cur; - /* The number of valid bytes in buf */ - size_t valid; - - /* Measures average tape speed */ - unsigned long avg_time; - int avg_size; - int avg_speed; - - /* the door is currently locked */ - int door_locked; - /* the tape hardware is write protected */ - char drv_write_prot; - /* the tape is write protected (hardware or opened as read-only) */ - char write_prot; -} idetape_tape_t; - -static DEFINE_MUTEX(ide_tape_mutex); -static DEFINE_MUTEX(idetape_ref_mutex); - -static DEFINE_MUTEX(idetape_chrdev_mutex); - -static struct class *idetape_sysfs_class; - -static void ide_tape_release(struct device *); - -static struct ide_tape_obj *idetape_devs[MAX_HWIFS * MAX_DRIVES]; - -static struct ide_tape_obj *ide_tape_get(struct gendisk *disk, bool cdev, - unsigned int i) -{ - struct ide_tape_obj *tape = NULL; - - mutex_lock(&idetape_ref_mutex); - - if (cdev) - tape = idetape_devs[i]; - else - tape = ide_drv_g(disk, ide_tape_obj); - - if (tape) { - if (ide_device_get(tape->drive)) - tape = NULL; - else - get_device(&tape->dev); - } - - mutex_unlock(&idetape_ref_mutex); - return tape; -} - -static void ide_tape_put(struct ide_tape_obj *tape) -{ - ide_drive_t *drive = tape->drive; - - mutex_lock(&idetape_ref_mutex); - put_device(&tape->dev); - ide_device_put(drive); - mutex_unlock(&idetape_ref_mutex); -} - -/* - * called on each failed packet command retry to analyze the request sense. We - * currently do not utilize this information. - */ -static void idetape_analyze_error(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc *pc = drive->failed_pc; - struct request *rq = drive->hwif->rq; - u8 *sense = bio_data(rq->bio); - - tape->sense_key = sense[2] & 0xF; - tape->asc = sense[12]; - tape->ascq = sense[13]; - - ide_debug_log(IDE_DBG_FUNC, - "cmd: 0x%x, sense key = %x, asc = %x, ascq = %x", - rq->cmd[0], tape->sense_key, tape->asc, tape->ascq); - - /* correct remaining bytes to transfer */ - if (pc->flags & PC_FLAG_DMA_ERROR) - scsi_req(rq)->resid_len = tape->blk_size * get_unaligned_be32(&sense[3]); - - /* - * If error was the result of a zero-length read or write command, - * with sense key=5, asc=0x22, ascq=0, let it slide. Some drives - * (i.e. Seagate STT3401A Travan) don't support 0-length read/writes. - */ - if ((pc->c[0] == READ_6 || pc->c[0] == WRITE_6) - /* length == 0 */ - && pc->c[4] == 0 && pc->c[3] == 0 && pc->c[2] == 0) { - if (tape->sense_key == 5) { - /* don't report an error, everything's ok */ - pc->error = 0; - /* don't retry read/write */ - pc->flags |= PC_FLAG_ABORT; - } - } - if (pc->c[0] == READ_6 && (sense[2] & 0x80)) { - pc->error = IDE_DRV_ERROR_FILEMARK; - pc->flags |= PC_FLAG_ABORT; - } - if (pc->c[0] == WRITE_6) { - if ((sense[2] & 0x40) || (tape->sense_key == 0xd - && tape->asc == 0x0 && tape->ascq == 0x2)) { - pc->error = IDE_DRV_ERROR_EOD; - pc->flags |= PC_FLAG_ABORT; - } - } - if (pc->c[0] == READ_6 || pc->c[0] == WRITE_6) { - if (tape->sense_key == 8) { - pc->error = IDE_DRV_ERROR_EOD; - pc->flags |= PC_FLAG_ABORT; - } - if (!(pc->flags & PC_FLAG_ABORT) && - (blk_rq_bytes(rq) - scsi_req(rq)->resid_len)) - pc->retries = IDETAPE_MAX_PC_RETRIES + 1; - } -} - -static void ide_tape_handle_dsc(ide_drive_t *); - -static int ide_tape_callback(ide_drive_t *drive, int dsc) -{ - idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc *pc = drive->pc; - struct request *rq = drive->hwif->rq; - int uptodate = pc->error ? 0 : 1; - int err = uptodate ? 0 : IDE_DRV_ERROR_GENERAL; - - ide_debug_log(IDE_DBG_FUNC, "cmd: 0x%x, dsc: %d, err: %d", rq->cmd[0], - dsc, err); - - if (dsc) - ide_tape_handle_dsc(drive); - - if (drive->failed_pc == pc) - drive->failed_pc = NULL; - - if (pc->c[0] == REQUEST_SENSE) { - if (uptodate) - idetape_analyze_error(drive); - else - printk(KERN_ERR "ide-tape: Error in REQUEST SENSE " - "itself - Aborting request!\n"); - } else if (pc->c[0] == READ_6 || pc->c[0] == WRITE_6) { - unsigned int blocks = - (blk_rq_bytes(rq) - scsi_req(rq)->resid_len) / tape->blk_size; - - tape->avg_size += blocks * tape->blk_size; - - if (time_after_eq(jiffies, tape->avg_time + HZ)) { - tape->avg_speed = tape->avg_size * HZ / - (jiffies - tape->avg_time) / 1024; - tape->avg_size = 0; - tape->avg_time = jiffies; - } - - tape->first_frame += blocks; - - if (pc->error) { - uptodate = 0; - err = pc->error; - } - } - scsi_req(rq)->result = err; - - return uptodate; -} - -/* - * Postpone the current request so that ide.c will be able to service requests - * from another device on the same port while we are polling for DSC. - */ -static void ide_tape_stall_queue(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - - ide_debug_log(IDE_DBG_FUNC, "cmd: 0x%x, dsc_poll_freq: %lu", - drive->hwif->rq->cmd[0], tape->dsc_poll_freq); - - tape->postponed_rq = true; - - ide_stall_queue(drive, tape->dsc_poll_freq); -} - -static void ide_tape_handle_dsc(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - - /* Media access command */ - tape->dsc_polling_start = jiffies; - tape->dsc_poll_freq = IDETAPE_DSC_MA_FAST; - tape->dsc_timeout = jiffies + IDETAPE_DSC_MA_TIMEOUT; - /* Allow ide.c to handle other requests */ - ide_tape_stall_queue(drive); -} - -/* - * Packet Command Interface - * - * The current Packet Command is available in drive->pc, and will not change - * until we finish handling it. Each packet command is associated with a - * callback function that will be called when the command is finished. - * - * The handling will be done in three stages: - * - * 1. ide_tape_issue_pc will send the packet command to the drive, and will set - * the interrupt handler to ide_pc_intr. - * - * 2. On each interrupt, ide_pc_intr will be called. This step will be - * repeated until the device signals us that no more interrupts will be issued. - * - * 3. ATAPI Tape media access commands have immediate status with a delayed - * process. In case of a successful initiation of a media access packet command, - * the DSC bit will be set when the actual execution of the command is finished. - * Since the tape drive will not issue an interrupt, we have to poll for this - * event. In this case, we define the request as "low priority request" by - * setting rq_status to IDETAPE_RQ_POSTPONED, set a timer to poll for DSC and - * exit the driver. - * - * ide.c will then give higher priority to requests which originate from the - * other device, until will change rq_status to RQ_ACTIVE. - * - * 4. When the packet command is finished, it will be checked for errors. - * - * 5. In case an error was found, we queue a request sense packet command in - * front of the request queue and retry the operation up to - * IDETAPE_MAX_PC_RETRIES times. - * - * 6. In case no error was found, or we decided to give up and not to retry - * again, the callback function will be called and then we will handle the next - * request. - */ - -static ide_startstop_t ide_tape_issue_pc(ide_drive_t *drive, - struct ide_cmd *cmd, - struct ide_atapi_pc *pc) -{ - idetape_tape_t *tape = drive->driver_data; - struct request *rq = drive->hwif->rq; - - if (drive->failed_pc == NULL && pc->c[0] != REQUEST_SENSE) - drive->failed_pc = pc; - - /* Set the current packet command */ - drive->pc = pc; - - if (pc->retries > IDETAPE_MAX_PC_RETRIES || - (pc->flags & PC_FLAG_ABORT)) { - - /* - * We will "abort" retrying a packet command in case legitimate - * error code was received (crossing a filemark, or end of the - * media, for example). - */ - if (!(pc->flags & PC_FLAG_ABORT)) { - if (!(pc->c[0] == TEST_UNIT_READY && - tape->sense_key == 2 && tape->asc == 4 && - (tape->ascq == 1 || tape->ascq == 8))) { - printk(KERN_ERR "ide-tape: %s: I/O error, " - "pc = %2x, key = %2x, " - "asc = %2x, ascq = %2x\n", - tape->name, pc->c[0], - tape->sense_key, tape->asc, - tape->ascq); - } - /* Giving up */ - pc->error = IDE_DRV_ERROR_GENERAL; - } - - drive->failed_pc = NULL; - drive->pc_callback(drive, 0); - ide_complete_rq(drive, BLK_STS_IOERR, blk_rq_bytes(rq)); - return ide_stopped; - } - ide_debug_log(IDE_DBG_SENSE, "retry #%d, cmd: 0x%02x", pc->retries, - pc->c[0]); - - pc->retries++; - - return ide_issue_pc(drive, cmd); -} - -/* A mode sense command is used to "sense" tape parameters. */ -static void idetape_create_mode_sense_cmd(struct ide_atapi_pc *pc, u8 page_code) -{ - ide_init_pc(pc); - pc->c[0] = MODE_SENSE; - if (page_code != IDETAPE_BLOCK_DESCRIPTOR) - /* DBD = 1 - Don't return block descriptors */ - pc->c[1] = 8; - pc->c[2] = page_code; - /* - * Changed pc->c[3] to 0 (255 will at best return unused info). - * - * For SCSI this byte is defined as subpage instead of high byte - * of length and some IDE drives seem to interpret it this way - * and return an error when 255 is used. - */ - pc->c[3] = 0; - /* We will just discard data in that case */ - pc->c[4] = 255; - if (page_code == IDETAPE_BLOCK_DESCRIPTOR) - pc->req_xfer = 12; - else if (page_code == IDETAPE_CAPABILITIES_PAGE) - pc->req_xfer = 24; - else - pc->req_xfer = 50; -} - -static ide_startstop_t idetape_media_access_finished(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc *pc = drive->pc; - u8 stat; - - stat = hwif->tp_ops->read_status(hwif); - - if (stat & ATA_DSC) { - if (stat & ATA_ERR) { - /* Error detected */ - if (pc->c[0] != TEST_UNIT_READY) - printk(KERN_ERR "ide-tape: %s: I/O error, ", - tape->name); - /* Retry operation */ - ide_retry_pc(drive); - return ide_stopped; - } - pc->error = 0; - } else { - pc->error = IDE_DRV_ERROR_GENERAL; - drive->failed_pc = NULL; - } - drive->pc_callback(drive, 0); - return ide_stopped; -} - -static void ide_tape_create_rw_cmd(idetape_tape_t *tape, - struct ide_atapi_pc *pc, struct request *rq, - u8 opcode) -{ - unsigned int length = blk_rq_sectors(rq) / (tape->blk_size >> 9); - - ide_init_pc(pc); - put_unaligned(cpu_to_be32(length), (unsigned int *) &pc->c[1]); - pc->c[1] = 1; - - if (blk_rq_bytes(rq) == tape->buffer_size) - pc->flags |= PC_FLAG_DMA_OK; - - if (opcode == READ_6) - pc->c[0] = READ_6; - else if (opcode == WRITE_6) { - pc->c[0] = WRITE_6; - pc->flags |= PC_FLAG_WRITING; - } - - memcpy(scsi_req(rq)->cmd, pc->c, 12); -} - -static ide_startstop_t idetape_do_request(ide_drive_t *drive, - struct request *rq, sector_t block) -{ - ide_hwif_t *hwif = drive->hwif; - idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc *pc = NULL; - struct ide_cmd cmd; - struct scsi_request *req = scsi_req(rq); - u8 stat; - - ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, sector: %llu, nr_sectors: %u", - req->cmd[0], (unsigned long long)blk_rq_pos(rq), - blk_rq_sectors(rq)); - - BUG_ON(!blk_rq_is_private(rq)); - BUG_ON(ide_req(rq)->type != ATA_PRIV_MISC && - ide_req(rq)->type != ATA_PRIV_SENSE); - - /* Retry a failed packet command */ - if (drive->failed_pc && drive->pc->c[0] == REQUEST_SENSE) { - pc = drive->failed_pc; - goto out; - } - - /* - * If the tape is still busy, postpone our request and service - * the other device meanwhile. - */ - stat = hwif->tp_ops->read_status(hwif); - - if ((drive->dev_flags & IDE_DFLAG_DSC_OVERLAP) == 0 && - (req->cmd[13] & REQ_IDETAPE_PC2) == 0) - drive->atapi_flags |= IDE_AFLAG_IGNORE_DSC; - - if (drive->dev_flags & IDE_DFLAG_POST_RESET) { - drive->atapi_flags |= IDE_AFLAG_IGNORE_DSC; - drive->dev_flags &= ~IDE_DFLAG_POST_RESET; - } - - if (!(drive->atapi_flags & IDE_AFLAG_IGNORE_DSC) && - !(stat & ATA_DSC)) { - if (!tape->postponed_rq) { - tape->dsc_polling_start = jiffies; - tape->dsc_poll_freq = tape->best_dsc_rw_freq; - tape->dsc_timeout = jiffies + IDETAPE_DSC_RW_TIMEOUT; - } else if (time_after(jiffies, tape->dsc_timeout)) { - printk(KERN_ERR "ide-tape: %s: DSC timeout\n", - tape->name); - if (req->cmd[13] & REQ_IDETAPE_PC2) { - idetape_media_access_finished(drive); - return ide_stopped; - } else { - return ide_do_reset(drive); - } - } else if (time_after(jiffies, - tape->dsc_polling_start + - IDETAPE_DSC_MA_THRESHOLD)) - tape->dsc_poll_freq = IDETAPE_DSC_MA_SLOW; - ide_tape_stall_queue(drive); - return ide_stopped; - } else { - drive->atapi_flags &= ~IDE_AFLAG_IGNORE_DSC; - tape->postponed_rq = false; - } - - if (req->cmd[13] & REQ_IDETAPE_READ) { - pc = &tape->queued_pc; - ide_tape_create_rw_cmd(tape, pc, rq, READ_6); - goto out; - } - if (req->cmd[13] & REQ_IDETAPE_WRITE) { - pc = &tape->queued_pc; - ide_tape_create_rw_cmd(tape, pc, rq, WRITE_6); - goto out; - } - if (req->cmd[13] & REQ_IDETAPE_PC1) { - pc = (struct ide_atapi_pc *)ide_req(rq)->special; - req->cmd[13] &= ~(REQ_IDETAPE_PC1); - req->cmd[13] |= REQ_IDETAPE_PC2; - goto out; - } - if (req->cmd[13] & REQ_IDETAPE_PC2) { - idetape_media_access_finished(drive); - return ide_stopped; - } - BUG(); - -out: - /* prepare sense request for this command */ - ide_prep_sense(drive, rq); - - memset(&cmd, 0, sizeof(cmd)); - - if (rq_data_dir(rq)) - cmd.tf_flags |= IDE_TFLAG_WRITE; - - cmd.rq = rq; - - ide_init_sg_cmd(&cmd, blk_rq_bytes(rq)); - ide_map_sg(drive, &cmd); - - return ide_tape_issue_pc(drive, &cmd, pc); -} - -/* - * Write a filemark if write_filemark=1. Flush the device buffers without - * writing a filemark otherwise. - */ -static void idetape_create_write_filemark_cmd(ide_drive_t *drive, - struct ide_atapi_pc *pc, int write_filemark) -{ - ide_init_pc(pc); - pc->c[0] = WRITE_FILEMARKS; - pc->c[4] = write_filemark; - pc->flags |= PC_FLAG_WAIT_FOR_DSC; -} - -static int idetape_wait_ready(ide_drive_t *drive, unsigned long timeout) -{ - idetape_tape_t *tape = drive->driver_data; - struct gendisk *disk = tape->disk; - int load_attempted = 0; - - /* Wait for the tape to become ready */ - set_bit(ilog2(IDE_AFLAG_MEDIUM_PRESENT), &drive->atapi_flags); - timeout += jiffies; - while (time_before(jiffies, timeout)) { - if (ide_do_test_unit_ready(drive, disk) == 0) - return 0; - if ((tape->sense_key == 2 && tape->asc == 4 && tape->ascq == 2) - || (tape->asc == 0x3A)) { - /* no media */ - if (load_attempted) - return -ENOMEDIUM; - ide_do_start_stop(drive, disk, IDETAPE_LU_LOAD_MASK); - load_attempted = 1; - /* not about to be ready */ - } else if (!(tape->sense_key == 2 && tape->asc == 4 && - (tape->ascq == 1 || tape->ascq == 8))) - return -EIO; - msleep(100); - } - return -EIO; -} - -static int idetape_flush_tape_buffers(ide_drive_t *drive) -{ - struct ide_tape_obj *tape = drive->driver_data; - struct ide_atapi_pc pc; - int rc; - - idetape_create_write_filemark_cmd(drive, &pc, 0); - rc = ide_queue_pc_tail(drive, tape->disk, &pc, NULL, 0); - if (rc) - return rc; - idetape_wait_ready(drive, 60 * 5 * HZ); - return 0; -} - -static int ide_tape_read_position(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc pc; - u8 buf[20]; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - /* prep cmd */ - ide_init_pc(&pc); - pc.c[0] = READ_POSITION; - pc.req_xfer = 20; - - if (ide_queue_pc_tail(drive, tape->disk, &pc, buf, pc.req_xfer)) - return -1; - - if (!pc.error) { - ide_debug_log(IDE_DBG_FUNC, "BOP - %s", - (buf[0] & 0x80) ? "Yes" : "No"); - ide_debug_log(IDE_DBG_FUNC, "EOP - %s", - (buf[0] & 0x40) ? "Yes" : "No"); - - if (buf[0] & 0x4) { - printk(KERN_INFO "ide-tape: Block location is unknown" - "to the tape\n"); - clear_bit(ilog2(IDE_AFLAG_ADDRESS_VALID), - &drive->atapi_flags); - return -1; - } else { - ide_debug_log(IDE_DBG_FUNC, "Block Location: %u", - be32_to_cpup((__be32 *)&buf[4])); - - tape->partition = buf[1]; - tape->first_frame = be32_to_cpup((__be32 *)&buf[4]); - set_bit(ilog2(IDE_AFLAG_ADDRESS_VALID), - &drive->atapi_flags); - } - } - - return tape->first_frame; -} - -static void idetape_create_locate_cmd(ide_drive_t *drive, - struct ide_atapi_pc *pc, - unsigned int block, u8 partition, int skip) -{ - ide_init_pc(pc); - pc->c[0] = POSITION_TO_ELEMENT; - pc->c[1] = 2; - put_unaligned(cpu_to_be32(block), (unsigned int *) &pc->c[3]); - pc->c[8] = partition; - pc->flags |= PC_FLAG_WAIT_FOR_DSC; -} - -static void __ide_tape_discard_merge_buffer(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - - if (tape->chrdev_dir != IDETAPE_DIR_READ) - return; - - clear_bit(ilog2(IDE_AFLAG_FILEMARK), &drive->atapi_flags); - tape->valid = 0; - if (tape->buf != NULL) { - kfree(tape->buf); - tape->buf = NULL; - } - - tape->chrdev_dir = IDETAPE_DIR_NONE; -} - -/* - * Position the tape to the requested block using the LOCATE packet command. - * A READ POSITION command is then issued to check where we are positioned. Like - * all higher level operations, we queue the commands at the tail of the request - * queue and wait for their completion. - */ -static int idetape_position_tape(ide_drive_t *drive, unsigned int block, - u8 partition, int skip) -{ - idetape_tape_t *tape = drive->driver_data; - struct gendisk *disk = tape->disk; - int ret; - struct ide_atapi_pc pc; - - if (tape->chrdev_dir == IDETAPE_DIR_READ) - __ide_tape_discard_merge_buffer(drive); - idetape_wait_ready(drive, 60 * 5 * HZ); - idetape_create_locate_cmd(drive, &pc, block, partition, skip); - ret = ide_queue_pc_tail(drive, disk, &pc, NULL, 0); - if (ret) - return ret; - - ret = ide_tape_read_position(drive); - if (ret < 0) - return ret; - return 0; -} - -static void ide_tape_discard_merge_buffer(ide_drive_t *drive, - int restore_position) -{ - idetape_tape_t *tape = drive->driver_data; - int seek, position; - - __ide_tape_discard_merge_buffer(drive); - if (restore_position) { - position = ide_tape_read_position(drive); - seek = position > 0 ? position : 0; - if (idetape_position_tape(drive, seek, 0, 0)) { - printk(KERN_INFO "ide-tape: %s: position_tape failed in" - " %s\n", tape->name, __func__); - return; - } - } -} - -/* - * Generate a read/write request for the block device interface and wait for it - * to be serviced. - */ -static int idetape_queue_rw_tail(ide_drive_t *drive, int cmd, int size) -{ - idetape_tape_t *tape = drive->driver_data; - struct request *rq; - int ret; - - ide_debug_log(IDE_DBG_FUNC, "cmd: 0x%x, size: %d", cmd, size); - - BUG_ON(cmd != REQ_IDETAPE_READ && cmd != REQ_IDETAPE_WRITE); - BUG_ON(size < 0 || size % tape->blk_size); - - rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); - ide_req(rq)->type = ATA_PRIV_MISC; - scsi_req(rq)->cmd[13] = cmd; - rq->rq_disk = tape->disk; - rq->__sector = tape->first_frame; - - if (size) { - ret = blk_rq_map_kern(drive->queue, rq, tape->buf, size, - GFP_NOIO); - if (ret) - goto out_put; - } - - blk_execute_rq(tape->disk, rq, 0); - - /* calculate the number of transferred bytes and update buffer state */ - size -= scsi_req(rq)->resid_len; - tape->cur = tape->buf; - if (cmd == REQ_IDETAPE_READ) - tape->valid = size; - else - tape->valid = 0; - - ret = size; - if (scsi_req(rq)->result == IDE_DRV_ERROR_GENERAL) - ret = -EIO; -out_put: - blk_put_request(rq); - return ret; -} - -static void idetape_create_inquiry_cmd(struct ide_atapi_pc *pc) -{ - ide_init_pc(pc); - pc->c[0] = INQUIRY; - pc->c[4] = 254; - pc->req_xfer = 254; -} - -static void idetape_create_rewind_cmd(ide_drive_t *drive, - struct ide_atapi_pc *pc) -{ - ide_init_pc(pc); - pc->c[0] = REZERO_UNIT; - pc->flags |= PC_FLAG_WAIT_FOR_DSC; -} - -static void idetape_create_erase_cmd(struct ide_atapi_pc *pc) -{ - ide_init_pc(pc); - pc->c[0] = ERASE; - pc->c[1] = 1; - pc->flags |= PC_FLAG_WAIT_FOR_DSC; -} - -static void idetape_create_space_cmd(struct ide_atapi_pc *pc, int count, u8 cmd) -{ - ide_init_pc(pc); - pc->c[0] = SPACE; - put_unaligned(cpu_to_be32(count), (unsigned int *) &pc->c[1]); - pc->c[1] = cmd; - pc->flags |= PC_FLAG_WAIT_FOR_DSC; -} - -static void ide_tape_flush_merge_buffer(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - - if (tape->chrdev_dir != IDETAPE_DIR_WRITE) { - printk(KERN_ERR "ide-tape: bug: Trying to empty merge buffer" - " but we are not writing.\n"); - return; - } - if (tape->buf) { - size_t aligned = roundup(tape->valid, tape->blk_size); - - memset(tape->cur, 0, aligned - tape->valid); - idetape_queue_rw_tail(drive, REQ_IDETAPE_WRITE, aligned); - kfree(tape->buf); - tape->buf = NULL; - } - tape->chrdev_dir = IDETAPE_DIR_NONE; -} - -static int idetape_init_rw(ide_drive_t *drive, int dir) -{ - idetape_tape_t *tape = drive->driver_data; - int rc; - - BUG_ON(dir != IDETAPE_DIR_READ && dir != IDETAPE_DIR_WRITE); - - if (tape->chrdev_dir == dir) - return 0; - - if (tape->chrdev_dir == IDETAPE_DIR_READ) - ide_tape_discard_merge_buffer(drive, 1); - else if (tape->chrdev_dir == IDETAPE_DIR_WRITE) { - ide_tape_flush_merge_buffer(drive); - idetape_flush_tape_buffers(drive); - } - - if (tape->buf || tape->valid) { - printk(KERN_ERR "ide-tape: valid should be 0 now\n"); - tape->valid = 0; - } - - tape->buf = kmalloc(tape->buffer_size, GFP_KERNEL); - if (!tape->buf) - return -ENOMEM; - tape->chrdev_dir = dir; - tape->cur = tape->buf; - - /* - * Issue a 0 rw command to ensure that DSC handshake is - * switched from completion mode to buffer available mode. No - * point in issuing this if DSC overlap isn't supported, some - * drives (Seagate STT3401A) will return an error. - */ - if (drive->dev_flags & IDE_DFLAG_DSC_OVERLAP) { - int cmd = dir == IDETAPE_DIR_READ ? REQ_IDETAPE_READ - : REQ_IDETAPE_WRITE; - - rc = idetape_queue_rw_tail(drive, cmd, 0); - if (rc < 0) { - kfree(tape->buf); - tape->buf = NULL; - tape->chrdev_dir = IDETAPE_DIR_NONE; - return rc; - } - } - - return 0; -} - -static void idetape_pad_zeros(ide_drive_t *drive, int bcount) -{ - idetape_tape_t *tape = drive->driver_data; - - memset(tape->buf, 0, tape->buffer_size); - - while (bcount) { - unsigned int count = min(tape->buffer_size, bcount); - - idetape_queue_rw_tail(drive, REQ_IDETAPE_WRITE, count); - bcount -= count; - } -} - -/* - * Rewinds the tape to the Beginning Of the current Partition (BOP). We - * currently support only one partition. - */ -static int idetape_rewind_tape(ide_drive_t *drive) -{ - struct ide_tape_obj *tape = drive->driver_data; - struct gendisk *disk = tape->disk; - struct ide_atapi_pc pc; - int ret; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - idetape_create_rewind_cmd(drive, &pc); - ret = ide_queue_pc_tail(drive, disk, &pc, NULL, 0); - if (ret) - return ret; - - ret = ide_tape_read_position(drive); - if (ret < 0) - return ret; - return 0; -} - -/* mtio.h compatible commands should be issued to the chrdev interface. */ -static int idetape_blkdev_ioctl(ide_drive_t *drive, unsigned int cmd, - unsigned long arg) -{ - idetape_tape_t *tape = drive->driver_data; - void __user *argp = (void __user *)arg; - - struct idetape_config { - int dsc_rw_frequency; - int dsc_media_access_frequency; - int nr_stages; - } config; - - ide_debug_log(IDE_DBG_FUNC, "cmd: 0x%04x", cmd); - - switch (cmd) { - case 0x0340: - if (copy_from_user(&config, argp, sizeof(config))) - return -EFAULT; - tape->best_dsc_rw_freq = config.dsc_rw_frequency; - break; - case 0x0350: - memset(&config, 0, sizeof(config)); - config.dsc_rw_frequency = (int) tape->best_dsc_rw_freq; - config.nr_stages = 1; - if (copy_to_user(argp, &config, sizeof(config))) - return -EFAULT; - break; - default: - return -EIO; - } - return 0; -} - -static int idetape_space_over_filemarks(ide_drive_t *drive, short mt_op, - int mt_count) -{ - idetape_tape_t *tape = drive->driver_data; - struct gendisk *disk = tape->disk; - struct ide_atapi_pc pc; - int retval, count = 0; - int sprev = !!(tape->caps[4] & 0x20); - - - ide_debug_log(IDE_DBG_FUNC, "mt_op: %d, mt_count: %d", mt_op, mt_count); - - if (mt_count == 0) - return 0; - if (MTBSF == mt_op || MTBSFM == mt_op) { - if (!sprev) - return -EIO; - mt_count = -mt_count; - } - - if (tape->chrdev_dir == IDETAPE_DIR_READ) { - tape->valid = 0; - if (test_and_clear_bit(ilog2(IDE_AFLAG_FILEMARK), - &drive->atapi_flags)) - ++count; - ide_tape_discard_merge_buffer(drive, 0); - } - - switch (mt_op) { - case MTFSF: - case MTBSF: - idetape_create_space_cmd(&pc, mt_count - count, - IDETAPE_SPACE_OVER_FILEMARK); - return ide_queue_pc_tail(drive, disk, &pc, NULL, 0); - case MTFSFM: - case MTBSFM: - if (!sprev) - return -EIO; - retval = idetape_space_over_filemarks(drive, MTFSF, - mt_count - count); - if (retval) - return retval; - count = (MTBSFM == mt_op ? 1 : -1); - return idetape_space_over_filemarks(drive, MTFSF, count); - default: - printk(KERN_ERR "ide-tape: MTIO operation %d not supported\n", - mt_op); - return -EIO; - } -} - -/* - * Our character device read / write functions. - * - * The tape is optimized to maximize throughput when it is transferring an - * integral number of the "continuous transfer limit", which is a parameter of - * the specific tape (26kB on my particular tape, 32kB for Onstream). - * - * As of version 1.3 of the driver, the character device provides an abstract - * continuous view of the media - any mix of block sizes (even 1 byte) on the - * same backup/restore procedure is supported. The driver will internally - * convert the requests to the recommended transfer unit, so that an unmatch - * between the user's block size to the recommended size will only result in a - * (slightly) increased driver overhead, but will no longer hit performance. - * This is not applicable to Onstream. - */ -static ssize_t idetape_chrdev_read(struct file *file, char __user *buf, - size_t count, loff_t *ppos) -{ - struct ide_tape_obj *tape = file->private_data; - ide_drive_t *drive = tape->drive; - size_t done = 0; - ssize_t ret = 0; - int rc; - - ide_debug_log(IDE_DBG_FUNC, "count %zd", count); - - if (tape->chrdev_dir != IDETAPE_DIR_READ) { - if (test_bit(ilog2(IDE_AFLAG_DETECT_BS), &drive->atapi_flags)) - if (count > tape->blk_size && - (count % tape->blk_size) == 0) - tape->user_bs_factor = count / tape->blk_size; - } - - rc = idetape_init_rw(drive, IDETAPE_DIR_READ); - if (rc < 0) - return rc; - - while (done < count) { - size_t todo; - - /* refill if staging buffer is empty */ - if (!tape->valid) { - /* If we are at a filemark, nothing more to read */ - if (test_bit(ilog2(IDE_AFLAG_FILEMARK), - &drive->atapi_flags)) - break; - /* read */ - if (idetape_queue_rw_tail(drive, REQ_IDETAPE_READ, - tape->buffer_size) <= 0) - break; - } - - /* copy out */ - todo = min_t(size_t, count - done, tape->valid); - if (copy_to_user(buf + done, tape->cur, todo)) - ret = -EFAULT; - - tape->cur += todo; - tape->valid -= todo; - done += todo; - } - - if (!done && test_bit(ilog2(IDE_AFLAG_FILEMARK), &drive->atapi_flags)) { - idetape_space_over_filemarks(drive, MTFSF, 1); - return 0; - } - - return ret ? ret : done; -} - -static ssize_t idetape_chrdev_write(struct file *file, const char __user *buf, - size_t count, loff_t *ppos) -{ - struct ide_tape_obj *tape = file->private_data; - ide_drive_t *drive = tape->drive; - size_t done = 0; - ssize_t ret = 0; - int rc; - - /* The drive is write protected. */ - if (tape->write_prot) - return -EACCES; - - ide_debug_log(IDE_DBG_FUNC, "count %zd", count); - - /* Initialize write operation */ - rc = idetape_init_rw(drive, IDETAPE_DIR_WRITE); - if (rc < 0) - return rc; - - while (done < count) { - size_t todo; - - /* flush if staging buffer is full */ - if (tape->valid == tape->buffer_size && - idetape_queue_rw_tail(drive, REQ_IDETAPE_WRITE, - tape->buffer_size) <= 0) - return rc; - - /* copy in */ - todo = min_t(size_t, count - done, - tape->buffer_size - tape->valid); - if (copy_from_user(tape->cur, buf + done, todo)) - ret = -EFAULT; - - tape->cur += todo; - tape->valid += todo; - done += todo; - } - - return ret ? ret : done; -} - -static int idetape_write_filemark(ide_drive_t *drive) -{ - struct ide_tape_obj *tape = drive->driver_data; - struct ide_atapi_pc pc; - - /* Write a filemark */ - idetape_create_write_filemark_cmd(drive, &pc, 1); - if (ide_queue_pc_tail(drive, tape->disk, &pc, NULL, 0)) { - printk(KERN_ERR "ide-tape: Couldn't write a filemark\n"); - return -EIO; - } - return 0; -} - -/* - * Called from idetape_chrdev_ioctl when the general mtio MTIOCTOP ioctl is - * requested. - * - * Note: MTBSF and MTBSFM are not supported when the tape doesn't support - * spacing over filemarks in the reverse direction. In this case, MTFSFM is also - * usually not supported. - * - * The following commands are currently not supported: - * - * MTFSS, MTBSS, MTWSM, MTSETDENSITY, MTSETDRVBUFFER, MT_ST_BOOLEANS, - * MT_ST_WRITE_THRESHOLD. - */ -static int idetape_mtioctop(ide_drive_t *drive, short mt_op, int mt_count) -{ - idetape_tape_t *tape = drive->driver_data; - struct gendisk *disk = tape->disk; - struct ide_atapi_pc pc; - int i, retval; - - ide_debug_log(IDE_DBG_FUNC, "MTIOCTOP ioctl: mt_op: %d, mt_count: %d", - mt_op, mt_count); - - switch (mt_op) { - case MTFSF: - case MTFSFM: - case MTBSF: - case MTBSFM: - if (!mt_count) - return 0; - return idetape_space_over_filemarks(drive, mt_op, mt_count); - default: - break; - } - - switch (mt_op) { - case MTWEOF: - if (tape->write_prot) - return -EACCES; - ide_tape_discard_merge_buffer(drive, 1); - for (i = 0; i < mt_count; i++) { - retval = idetape_write_filemark(drive); - if (retval) - return retval; - } - return 0; - case MTREW: - ide_tape_discard_merge_buffer(drive, 0); - if (idetape_rewind_tape(drive)) - return -EIO; - return 0; - case MTLOAD: - ide_tape_discard_merge_buffer(drive, 0); - return ide_do_start_stop(drive, disk, IDETAPE_LU_LOAD_MASK); - case MTUNLOAD: - case MTOFFL: - /* - * If door is locked, attempt to unlock before - * attempting to eject. - */ - if (tape->door_locked) { - if (!ide_set_media_lock(drive, disk, 0)) - tape->door_locked = DOOR_UNLOCKED; - } - ide_tape_discard_merge_buffer(drive, 0); - retval = ide_do_start_stop(drive, disk, !IDETAPE_LU_LOAD_MASK); - if (!retval) - clear_bit(ilog2(IDE_AFLAG_MEDIUM_PRESENT), - &drive->atapi_flags); - return retval; - case MTNOP: - ide_tape_discard_merge_buffer(drive, 0); - return idetape_flush_tape_buffers(drive); - case MTRETEN: - ide_tape_discard_merge_buffer(drive, 0); - return ide_do_start_stop(drive, disk, - IDETAPE_LU_RETENSION_MASK | IDETAPE_LU_LOAD_MASK); - case MTEOM: - idetape_create_space_cmd(&pc, 0, IDETAPE_SPACE_TO_EOD); - return ide_queue_pc_tail(drive, disk, &pc, NULL, 0); - case MTERASE: - (void)idetape_rewind_tape(drive); - idetape_create_erase_cmd(&pc); - return ide_queue_pc_tail(drive, disk, &pc, NULL, 0); - case MTSETBLK: - if (mt_count) { - if (mt_count < tape->blk_size || - mt_count % tape->blk_size) - return -EIO; - tape->user_bs_factor = mt_count / tape->blk_size; - clear_bit(ilog2(IDE_AFLAG_DETECT_BS), - &drive->atapi_flags); - } else - set_bit(ilog2(IDE_AFLAG_DETECT_BS), - &drive->atapi_flags); - return 0; - case MTSEEK: - ide_tape_discard_merge_buffer(drive, 0); - return idetape_position_tape(drive, - mt_count * tape->user_bs_factor, tape->partition, 0); - case MTSETPART: - ide_tape_discard_merge_buffer(drive, 0); - return idetape_position_tape(drive, 0, mt_count, 0); - case MTFSR: - case MTBSR: - case MTLOCK: - retval = ide_set_media_lock(drive, disk, 1); - if (retval) - return retval; - tape->door_locked = DOOR_EXPLICITLY_LOCKED; - return 0; - case MTUNLOCK: - retval = ide_set_media_lock(drive, disk, 0); - if (retval) - return retval; - tape->door_locked = DOOR_UNLOCKED; - return 0; - default: - printk(KERN_ERR "ide-tape: MTIO operation %d not supported\n", - mt_op); - return -EIO; - } -} - -/* - * Our character device ioctls. General mtio.h magnetic io commands are - * supported here, and not in the corresponding block interface. Our own - * ide-tape ioctls are supported on both interfaces. - */ -static long do_idetape_chrdev_ioctl(struct file *file, - unsigned int cmd, unsigned long arg) -{ - struct ide_tape_obj *tape = file->private_data; - ide_drive_t *drive = tape->drive; - struct mtop mtop; - struct mtget mtget; - struct mtpos mtpos; - int block_offset = 0, position = tape->first_frame; - void __user *argp = (void __user *)arg; - - ide_debug_log(IDE_DBG_FUNC, "cmd: 0x%x", cmd); - - if (tape->chrdev_dir == IDETAPE_DIR_WRITE) { - ide_tape_flush_merge_buffer(drive); - idetape_flush_tape_buffers(drive); - } - if (cmd == MTIOCGET || cmd == MTIOCPOS) { - block_offset = tape->valid / - (tape->blk_size * tape->user_bs_factor); - position = ide_tape_read_position(drive); - if (position < 0) - return -EIO; - } - switch (cmd) { - case MTIOCTOP: - if (copy_from_user(&mtop, argp, sizeof(struct mtop))) - return -EFAULT; - return idetape_mtioctop(drive, mtop.mt_op, mtop.mt_count); - case MTIOCGET: - memset(&mtget, 0, sizeof(struct mtget)); - mtget.mt_type = MT_ISSCSI2; - mtget.mt_blkno = position / tape->user_bs_factor - block_offset; - mtget.mt_dsreg = - ((tape->blk_size * tape->user_bs_factor) - << MT_ST_BLKSIZE_SHIFT) & MT_ST_BLKSIZE_MASK; - - if (tape->drv_write_prot) - mtget.mt_gstat |= GMT_WR_PROT(0xffffffff); - - return put_user_mtget(argp, &mtget); - case MTIOCPOS: - mtpos.mt_blkno = position / tape->user_bs_factor - block_offset; - return put_user_mtpos(argp, &mtpos); - default: - if (tape->chrdev_dir == IDETAPE_DIR_READ) - ide_tape_discard_merge_buffer(drive, 1); - return idetape_blkdev_ioctl(drive, cmd, arg); - } -} - -static long idetape_chrdev_ioctl(struct file *file, - unsigned int cmd, unsigned long arg) -{ - long ret; - mutex_lock(&ide_tape_mutex); - ret = do_idetape_chrdev_ioctl(file, cmd, arg); - mutex_unlock(&ide_tape_mutex); - return ret; -} - -static long idetape_chrdev_compat_ioctl(struct file *file, - unsigned int cmd, unsigned long arg) -{ - long ret; - - if (cmd == MTIOCPOS32) - cmd = MTIOCPOS; - else if (cmd == MTIOCGET32) - cmd = MTIOCGET; - - mutex_lock(&ide_tape_mutex); - ret = do_idetape_chrdev_ioctl(file, cmd, arg); - mutex_unlock(&ide_tape_mutex); - return ret; -} - -/* - * Do a mode sense page 0 with block descriptor and if it succeeds set the tape - * block size with the reported value. - */ -static void ide_tape_get_bsize_from_bdesc(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc pc; - u8 buf[12]; - - idetape_create_mode_sense_cmd(&pc, IDETAPE_BLOCK_DESCRIPTOR); - if (ide_queue_pc_tail(drive, tape->disk, &pc, buf, pc.req_xfer)) { - printk(KERN_ERR "ide-tape: Can't get block descriptor\n"); - if (tape->blk_size == 0) { - printk(KERN_WARNING "ide-tape: Cannot deal with zero " - "block size, assuming 32k\n"); - tape->blk_size = 32768; - } - return; - } - tape->blk_size = (buf[4 + 5] << 16) + - (buf[4 + 6] << 8) + - buf[4 + 7]; - tape->drv_write_prot = (buf[2] & 0x80) >> 7; - - ide_debug_log(IDE_DBG_FUNC, "blk_size: %d, write_prot: %d", - tape->blk_size, tape->drv_write_prot); -} - -static int idetape_chrdev_open(struct inode *inode, struct file *filp) -{ - unsigned int minor = iminor(inode), i = minor & ~0xc0; - ide_drive_t *drive; - idetape_tape_t *tape; - int retval; - - if (i >= MAX_HWIFS * MAX_DRIVES) - return -ENXIO; - - mutex_lock(&idetape_chrdev_mutex); - - tape = ide_tape_get(NULL, true, i); - if (!tape) { - mutex_unlock(&idetape_chrdev_mutex); - return -ENXIO; - } - - drive = tape->drive; - filp->private_data = tape; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - /* - * We really want to do nonseekable_open(inode, filp); here, but some - * versions of tar incorrectly call lseek on tapes and bail out if that - * fails. So we disallow pread() and pwrite(), but permit lseeks. - */ - filp->f_mode &= ~(FMODE_PREAD | FMODE_PWRITE); - - - if (test_and_set_bit(ilog2(IDE_AFLAG_BUSY), &drive->atapi_flags)) { - retval = -EBUSY; - goto out_put_tape; - } - - retval = idetape_wait_ready(drive, 60 * HZ); - if (retval) { - clear_bit(ilog2(IDE_AFLAG_BUSY), &drive->atapi_flags); - printk(KERN_ERR "ide-tape: %s: drive not ready\n", tape->name); - goto out_put_tape; - } - - ide_tape_read_position(drive); - if (!test_bit(ilog2(IDE_AFLAG_ADDRESS_VALID), &drive->atapi_flags)) - (void)idetape_rewind_tape(drive); - - /* Read block size and write protect status from drive. */ - ide_tape_get_bsize_from_bdesc(drive); - - /* Set write protect flag if device is opened as read-only. */ - if ((filp->f_flags & O_ACCMODE) == O_RDONLY) - tape->write_prot = 1; - else - tape->write_prot = tape->drv_write_prot; - - /* Make sure drive isn't write protected if user wants to write. */ - if (tape->write_prot) { - if ((filp->f_flags & O_ACCMODE) == O_WRONLY || - (filp->f_flags & O_ACCMODE) == O_RDWR) { - clear_bit(ilog2(IDE_AFLAG_BUSY), &drive->atapi_flags); - retval = -EROFS; - goto out_put_tape; - } - } - - /* Lock the tape drive door so user can't eject. */ - if (tape->chrdev_dir == IDETAPE_DIR_NONE) { - if (!ide_set_media_lock(drive, tape->disk, 1)) { - if (tape->door_locked != DOOR_EXPLICITLY_LOCKED) - tape->door_locked = DOOR_LOCKED; - } - } - mutex_unlock(&idetape_chrdev_mutex); - - return 0; - -out_put_tape: - ide_tape_put(tape); - - mutex_unlock(&idetape_chrdev_mutex); - - return retval; -} - -static void idetape_write_release(ide_drive_t *drive, unsigned int minor) -{ - idetape_tape_t *tape = drive->driver_data; - - ide_tape_flush_merge_buffer(drive); - tape->buf = kmalloc(tape->buffer_size, GFP_KERNEL); - if (tape->buf != NULL) { - idetape_pad_zeros(drive, tape->blk_size * - (tape->user_bs_factor - 1)); - kfree(tape->buf); - tape->buf = NULL; - } - idetape_write_filemark(drive); - idetape_flush_tape_buffers(drive); - idetape_flush_tape_buffers(drive); -} - -static int idetape_chrdev_release(struct inode *inode, struct file *filp) -{ - struct ide_tape_obj *tape = filp->private_data; - ide_drive_t *drive = tape->drive; - unsigned int minor = iminor(inode); - - mutex_lock(&idetape_chrdev_mutex); - - tape = drive->driver_data; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - if (tape->chrdev_dir == IDETAPE_DIR_WRITE) - idetape_write_release(drive, minor); - if (tape->chrdev_dir == IDETAPE_DIR_READ) { - if (minor < 128) - ide_tape_discard_merge_buffer(drive, 1); - } - - if (minor < 128 && test_bit(ilog2(IDE_AFLAG_MEDIUM_PRESENT), - &drive->atapi_flags)) - (void) idetape_rewind_tape(drive); - - if (tape->chrdev_dir == IDETAPE_DIR_NONE) { - if (tape->door_locked == DOOR_LOCKED) { - if (!ide_set_media_lock(drive, tape->disk, 0)) - tape->door_locked = DOOR_UNLOCKED; - } - } - clear_bit(ilog2(IDE_AFLAG_BUSY), &drive->atapi_flags); - ide_tape_put(tape); - - mutex_unlock(&idetape_chrdev_mutex); - - return 0; -} - -static void idetape_get_inquiry_results(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc pc; - u8 pc_buf[256]; - char fw_rev[4], vendor_id[8], product_id[16]; - - idetape_create_inquiry_cmd(&pc); - if (ide_queue_pc_tail(drive, tape->disk, &pc, pc_buf, pc.req_xfer)) { - printk(KERN_ERR "ide-tape: %s: can't get INQUIRY results\n", - tape->name); - return; - } - memcpy(vendor_id, &pc_buf[8], 8); - memcpy(product_id, &pc_buf[16], 16); - memcpy(fw_rev, &pc_buf[32], 4); - - ide_fixstring(vendor_id, 8, 0); - ide_fixstring(product_id, 16, 0); - ide_fixstring(fw_rev, 4, 0); - - printk(KERN_INFO "ide-tape: %s <-> %s: %.8s %.16s rev %.4s\n", - drive->name, tape->name, vendor_id, product_id, fw_rev); -} - -/* - * Ask the tape about its various parameters. In particular, we will adjust our - * data transfer buffer size to the recommended value as returned by the tape. - */ -static void idetape_get_mode_sense_results(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - struct ide_atapi_pc pc; - u8 buf[24], *caps; - u8 speed, max_speed; - - idetape_create_mode_sense_cmd(&pc, IDETAPE_CAPABILITIES_PAGE); - if (ide_queue_pc_tail(drive, tape->disk, &pc, buf, pc.req_xfer)) { - printk(KERN_ERR "ide-tape: Can't get tape parameters - assuming" - " some default values\n"); - tape->blk_size = 512; - put_unaligned(52, (u16 *)&tape->caps[12]); - put_unaligned(540, (u16 *)&tape->caps[14]); - put_unaligned(6*52, (u16 *)&tape->caps[16]); - return; - } - caps = buf + 4 + buf[3]; - - /* convert to host order and save for later use */ - speed = be16_to_cpup((__be16 *)&caps[14]); - max_speed = be16_to_cpup((__be16 *)&caps[8]); - - *(u16 *)&caps[8] = max_speed; - *(u16 *)&caps[12] = be16_to_cpup((__be16 *)&caps[12]); - *(u16 *)&caps[14] = speed; - *(u16 *)&caps[16] = be16_to_cpup((__be16 *)&caps[16]); - - if (!speed) { - printk(KERN_INFO "ide-tape: %s: invalid tape speed " - "(assuming 650KB/sec)\n", drive->name); - *(u16 *)&caps[14] = 650; - } - if (!max_speed) { - printk(KERN_INFO "ide-tape: %s: invalid max_speed " - "(assuming 650KB/sec)\n", drive->name); - *(u16 *)&caps[8] = 650; - } - - memcpy(&tape->caps, caps, 20); - - /* device lacks locking support according to capabilities page */ - if ((caps[6] & 1) == 0) - drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; - - if (caps[7] & 0x02) - tape->blk_size = 512; - else if (caps[7] & 0x04) - tape->blk_size = 1024; -} - -#ifdef CONFIG_IDE_PROC_FS -#define ide_tape_devset_get(name, field) \ -static int get_##name(ide_drive_t *drive) \ -{ \ - idetape_tape_t *tape = drive->driver_data; \ - return tape->field; \ -} - -#define ide_tape_devset_set(name, field) \ -static int set_##name(ide_drive_t *drive, int arg) \ -{ \ - idetape_tape_t *tape = drive->driver_data; \ - tape->field = arg; \ - return 0; \ -} - -#define ide_tape_devset_rw_field(_name, _field) \ -ide_tape_devset_get(_name, _field) \ -ide_tape_devset_set(_name, _field) \ -IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) - -#define ide_tape_devset_r_field(_name, _field) \ -ide_tape_devset_get(_name, _field) \ -IDE_DEVSET(_name, 0, get_##_name, NULL) - -static int mulf_tdsc(ide_drive_t *drive) { return 1000; } -static int divf_tdsc(ide_drive_t *drive) { return HZ; } -static int divf_buffer(ide_drive_t *drive) { return 2; } -static int divf_buffer_size(ide_drive_t *drive) { return 1024; } - -ide_devset_rw_flag(dsc_overlap, IDE_DFLAG_DSC_OVERLAP); - -ide_tape_devset_rw_field(tdsc, best_dsc_rw_freq); - -ide_tape_devset_r_field(avg_speed, avg_speed); -ide_tape_devset_r_field(speed, caps[14]); -ide_tape_devset_r_field(buffer, caps[16]); -ide_tape_devset_r_field(buffer_size, buffer_size); - -static const struct ide_proc_devset idetape_settings[] = { - __IDE_PROC_DEVSET(avg_speed, 0, 0xffff, NULL, NULL), - __IDE_PROC_DEVSET(buffer, 0, 0xffff, NULL, divf_buffer), - __IDE_PROC_DEVSET(buffer_size, 0, 0xffff, NULL, divf_buffer_size), - __IDE_PROC_DEVSET(dsc_overlap, 0, 1, NULL, NULL), - __IDE_PROC_DEVSET(speed, 0, 0xffff, NULL, NULL), - __IDE_PROC_DEVSET(tdsc, IDETAPE_DSC_RW_MIN, IDETAPE_DSC_RW_MAX, - mulf_tdsc, divf_tdsc), - { NULL }, -}; -#endif - -/* - * The function below is called to: - * - * 1. Initialize our various state variables. - * 2. Ask the tape for its capabilities. - * 3. Allocate a buffer which will be used for data transfer. The buffer size - * is chosen based on the recommendation which we received in step 2. - * - * Note that at this point ide.c already assigned us an irq, so that we can - * queue requests here and wait for their completion. - */ -static void idetape_setup(ide_drive_t *drive, idetape_tape_t *tape, int minor) -{ - unsigned long t; - int speed; - u16 *ctl = (u16 *)&tape->caps[12]; - - ide_debug_log(IDE_DBG_FUNC, "minor: %d", minor); - - drive->pc_callback = ide_tape_callback; - - drive->dev_flags |= IDE_DFLAG_DSC_OVERLAP; - - if (drive->hwif->host_flags & IDE_HFLAG_NO_DSC) { - printk(KERN_INFO "ide-tape: %s: disabling DSC overlap\n", - tape->name); - drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP; - } - - /* Seagate Travan drives do not support DSC overlap. */ - if (strstr((char *)&drive->id[ATA_ID_PROD], "Seagate STT3401")) - drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP; - - tape->minor = minor; - tape->name[0] = 'h'; - tape->name[1] = 't'; - tape->name[2] = '0' + minor; - tape->chrdev_dir = IDETAPE_DIR_NONE; - - idetape_get_inquiry_results(drive); - idetape_get_mode_sense_results(drive); - ide_tape_get_bsize_from_bdesc(drive); - tape->user_bs_factor = 1; - tape->buffer_size = *ctl * tape->blk_size; - while (tape->buffer_size > 0xffff) { - printk(KERN_NOTICE "ide-tape: decreasing stage size\n"); - *ctl /= 2; - tape->buffer_size = *ctl * tape->blk_size; - } - - /* select the "best" DSC read/write polling freq */ - speed = max(*(u16 *)&tape->caps[14], *(u16 *)&tape->caps[8]); - - t = (IDETAPE_FIFO_THRESHOLD * tape->buffer_size * HZ) / (speed * 1000); - - /* - * Ensure that the number we got makes sense; limit it within - * IDETAPE_DSC_RW_MIN and IDETAPE_DSC_RW_MAX. - */ - tape->best_dsc_rw_freq = clamp_t(unsigned long, t, IDETAPE_DSC_RW_MIN, - IDETAPE_DSC_RW_MAX); - printk(KERN_INFO "ide-tape: %s <-> %s: %dKBps, %d*%dkB buffer, " - "%ums tDSC%s\n", - drive->name, tape->name, *(u16 *)&tape->caps[14], - (*(u16 *)&tape->caps[16] * 512) / tape->buffer_size, - tape->buffer_size / 1024, - jiffies_to_msecs(tape->best_dsc_rw_freq), - (drive->dev_flags & IDE_DFLAG_USING_DMA) ? ", DMA" : ""); - - ide_proc_register_driver(drive, tape->driver); -} - -static void ide_tape_remove(ide_drive_t *drive) -{ - idetape_tape_t *tape = drive->driver_data; - - ide_proc_unregister_driver(drive, tape->driver); - device_del(&tape->dev); - - mutex_lock(&idetape_ref_mutex); - put_device(&tape->dev); - mutex_unlock(&idetape_ref_mutex); -} - -static void ide_tape_release(struct device *dev) -{ - struct ide_tape_obj *tape = to_ide_drv(dev, ide_tape_obj); - ide_drive_t *drive = tape->drive; - struct gendisk *g = tape->disk; - - BUG_ON(tape->valid); - - drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP; - drive->driver_data = NULL; - device_destroy(idetape_sysfs_class, MKDEV(IDETAPE_MAJOR, tape->minor)); - device_destroy(idetape_sysfs_class, - MKDEV(IDETAPE_MAJOR, tape->minor + 128)); - idetape_devs[tape->minor] = NULL; - g->private_data = NULL; - put_disk(g); - kfree(tape); -} - -#ifdef CONFIG_IDE_PROC_FS -static int idetape_name_proc_show(struct seq_file *m, void *v) -{ - ide_drive_t *drive = (ide_drive_t *) m->private; - idetape_tape_t *tape = drive->driver_data; - - seq_printf(m, "%s\n", tape->name); - return 0; -} - -static ide_proc_entry_t idetape_proc[] = { - { "capacity", S_IFREG|S_IRUGO, ide_capacity_proc_show }, - { "name", S_IFREG|S_IRUGO, idetape_name_proc_show }, - {} -}; - -static ide_proc_entry_t *ide_tape_proc_entries(ide_drive_t *drive) -{ - return idetape_proc; -} - -static const struct ide_proc_devset *ide_tape_proc_devsets(ide_drive_t *drive) -{ - return idetape_settings; -} -#endif - -static int ide_tape_probe(ide_drive_t *); - -static struct ide_driver idetape_driver = { - .gen_driver = { - .owner = THIS_MODULE, - .name = "ide-tape", - .bus = &ide_bus_type, - }, - .probe = ide_tape_probe, - .remove = ide_tape_remove, - .version = IDETAPE_VERSION, - .do_request = idetape_do_request, -#ifdef CONFIG_IDE_PROC_FS - .proc_entries = ide_tape_proc_entries, - .proc_devsets = ide_tape_proc_devsets, -#endif -}; - -/* Our character device supporting functions, passed to register_chrdev. */ -static const struct file_operations idetape_fops = { - .owner = THIS_MODULE, - .read = idetape_chrdev_read, - .write = idetape_chrdev_write, - .unlocked_ioctl = idetape_chrdev_ioctl, - .compat_ioctl = IS_ENABLED(CONFIG_COMPAT) ? - idetape_chrdev_compat_ioctl : NULL, - .open = idetape_chrdev_open, - .release = idetape_chrdev_release, - .llseek = noop_llseek, -}; - -static int idetape_open(struct block_device *bdev, fmode_t mode) -{ - struct ide_tape_obj *tape; - - mutex_lock(&ide_tape_mutex); - tape = ide_tape_get(bdev->bd_disk, false, 0); - mutex_unlock(&ide_tape_mutex); - - if (!tape) - return -ENXIO; - - return 0; -} - -static void idetape_release(struct gendisk *disk, fmode_t mode) -{ - struct ide_tape_obj *tape = ide_drv_g(disk, ide_tape_obj); - - mutex_lock(&ide_tape_mutex); - ide_tape_put(tape); - mutex_unlock(&ide_tape_mutex); -} - -static int idetape_ioctl(struct block_device *bdev, fmode_t mode, - unsigned int cmd, unsigned long arg) -{ - struct ide_tape_obj *tape = ide_drv_g(bdev->bd_disk, ide_tape_obj); - ide_drive_t *drive = tape->drive; - int err; - - mutex_lock(&ide_tape_mutex); - err = generic_ide_ioctl(drive, bdev, cmd, arg); - if (err == -EINVAL) - err = idetape_blkdev_ioctl(drive, cmd, arg); - mutex_unlock(&ide_tape_mutex); - - return err; -} - -static int idetape_compat_ioctl(struct block_device *bdev, fmode_t mode, - unsigned int cmd, unsigned long arg) -{ - if (cmd == 0x0340 || cmd == 0x350) - arg = (unsigned long)compat_ptr(arg); - - return idetape_ioctl(bdev, mode, cmd, arg); -} - -static const struct block_device_operations idetape_block_ops = { - .owner = THIS_MODULE, - .open = idetape_open, - .release = idetape_release, - .ioctl = idetape_ioctl, - .compat_ioctl = IS_ENABLED(CONFIG_COMPAT) ? - idetape_compat_ioctl : NULL, -}; - -static int ide_tape_probe(ide_drive_t *drive) -{ - idetape_tape_t *tape; - struct gendisk *g; - int minor; - - ide_debug_log(IDE_DBG_FUNC, "enter"); - - if (!strstr(DRV_NAME, drive->driver_req)) - goto failed; - - if (drive->media != ide_tape) - goto failed; - - if ((drive->dev_flags & IDE_DFLAG_ID_READ) && - ide_check_atapi_device(drive, DRV_NAME) == 0) { - printk(KERN_ERR "ide-tape: %s: not supported by this version of" - " the driver\n", drive->name); - goto failed; - } - tape = kzalloc(sizeof(idetape_tape_t), GFP_KERNEL); - if (tape == NULL) { - printk(KERN_ERR "ide-tape: %s: Can't allocate a tape struct\n", - drive->name); - goto failed; - } - - g = alloc_disk(1 << PARTN_BITS); - if (!g) - goto out_free_tape; - - ide_init_disk(g, drive); - - tape->dev.parent = &drive->gendev; - tape->dev.release = ide_tape_release; - dev_set_name(&tape->dev, "%s", dev_name(&drive->gendev)); - - if (device_register(&tape->dev)) - goto out_free_disk; - - tape->drive = drive; - tape->driver = &idetape_driver; - tape->disk = g; - - g->private_data = &tape->driver; - - drive->driver_data = tape; - - mutex_lock(&idetape_ref_mutex); - for (minor = 0; idetape_devs[minor]; minor++) - ; - idetape_devs[minor] = tape; - mutex_unlock(&idetape_ref_mutex); - - idetape_setup(drive, tape, minor); - - device_create(idetape_sysfs_class, &drive->gendev, - MKDEV(IDETAPE_MAJOR, minor), NULL, "%s", tape->name); - device_create(idetape_sysfs_class, &drive->gendev, - MKDEV(IDETAPE_MAJOR, minor + 128), NULL, - "n%s", tape->name); - - g->fops = &idetape_block_ops; - - return 0; - -out_free_disk: - put_disk(g); -out_free_tape: - kfree(tape); -failed: - return -ENODEV; -} - -static void __exit idetape_exit(void) -{ - driver_unregister(&idetape_driver.gen_driver); - class_destroy(idetape_sysfs_class); - unregister_chrdev(IDETAPE_MAJOR, "ht"); -} - -static int __init idetape_init(void) -{ - int error = 1; - idetape_sysfs_class = class_create(THIS_MODULE, "ide_tape"); - if (IS_ERR(idetape_sysfs_class)) { - idetape_sysfs_class = NULL; - printk(KERN_ERR "Unable to create sysfs class for ide tapes\n"); - error = -EBUSY; - goto out; - } - - if (register_chrdev(IDETAPE_MAJOR, "ht", &idetape_fops)) { - printk(KERN_ERR "ide-tape: Failed to register chrdev" - " interface\n"); - error = -EBUSY; - goto out_free_class; - } - - error = driver_register(&idetape_driver.gen_driver); - if (error) - goto out_free_chrdev; - - return 0; - -out_free_chrdev: - unregister_chrdev(IDETAPE_MAJOR, "ht"); -out_free_class: - class_destroy(idetape_sysfs_class); -out: - return error; -} - -MODULE_ALIAS("ide:*m-tape*"); -module_init(idetape_init); -module_exit(idetape_exit); -MODULE_ALIAS_CHARDEV_MAJOR(IDETAPE_MAJOR); -MODULE_DESCRIPTION("ATAPI Streaming TAPE Driver"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c deleted file mode 100644 index 6665fc4724b9..000000000000 --- a/drivers/ide/ide-taskfile.c +++ /dev/null @@ -1,668 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 2000-2002 Michael Cornwell <cornwell@acm.org> - * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2001-2002 Klaus Smolin - * IBM Storage Technology Division - * Copyright (C) 2003-2004, 2007 Bartlomiej Zolnierkiewicz - * - * The big the bad and the ugly. - */ - -#include <linux/types.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/export.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/errno.h> -#include <linux/slab.h> -#include <linux/delay.h> -#include <linux/hdreg.h> -#include <linux/ide.h> -#include <linux/nmi.h> -#include <linux/scatterlist.h> -#include <linux/uaccess.h> - -#include <asm/io.h> - -void ide_tf_readback(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - - /* Be sure we're looking at the low order bytes */ - tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); - - tp_ops->tf_read(drive, &cmd->tf, cmd->valid.in.tf); - - if (cmd->tf_flags & IDE_TFLAG_LBA48) { - tp_ops->write_devctl(hwif, ATA_HOB | ATA_DEVCTL_OBS); - - tp_ops->tf_read(drive, &cmd->hob, cmd->valid.in.hob); - } -} - -void ide_tf_dump(const char *s, struct ide_cmd *cmd) -{ -#ifdef DEBUG - printk("%s: tf: feat 0x%02x nsect 0x%02x lbal 0x%02x " - "lbam 0x%02x lbah 0x%02x dev 0x%02x cmd 0x%02x\n", - s, cmd->tf.feature, cmd->tf.nsect, - cmd->tf.lbal, cmd->tf.lbam, cmd->tf.lbah, - cmd->tf.device, cmd->tf.command); - printk("%s: hob: nsect 0x%02x lbal 0x%02x lbam 0x%02x lbah 0x%02x\n", - s, cmd->hob.nsect, cmd->hob.lbal, cmd->hob.lbam, cmd->hob.lbah); -#endif -} - -int taskfile_lib_get_identify(ide_drive_t *drive, u8 *buf) -{ - struct ide_cmd cmd; - - memset(&cmd, 0, sizeof(cmd)); - cmd.tf.nsect = 0x01; - if (drive->media == ide_disk) - cmd.tf.command = ATA_CMD_ID_ATA; - else - cmd.tf.command = ATA_CMD_ID_ATAPI; - cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_IN_TF | IDE_VALID_DEVICE; - cmd.protocol = ATA_PROT_PIO; - - return ide_raw_taskfile(drive, &cmd, buf, 1); -} - -static ide_startstop_t task_no_data_intr(ide_drive_t *); -static ide_startstop_t pre_task_out_intr(ide_drive_t *, struct ide_cmd *); -static ide_startstop_t task_pio_intr(ide_drive_t *); - -ide_startstop_t do_rw_taskfile(ide_drive_t *drive, struct ide_cmd *orig_cmd) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_cmd *cmd = &hwif->cmd; - struct ide_taskfile *tf = &cmd->tf; - ide_handler_t *handler = NULL; - const struct ide_tp_ops *tp_ops = hwif->tp_ops; - const struct ide_dma_ops *dma_ops = hwif->dma_ops; - - if (orig_cmd->protocol == ATA_PROT_PIO && - (orig_cmd->tf_flags & IDE_TFLAG_MULTI_PIO) && - drive->mult_count == 0) { - pr_err("%s: multimode not set!\n", drive->name); - return ide_stopped; - } - - if (orig_cmd->ftf_flags & IDE_FTFLAG_FLAGGED) - orig_cmd->ftf_flags |= IDE_FTFLAG_SET_IN_FLAGS; - - memcpy(cmd, orig_cmd, sizeof(*cmd)); - - if ((cmd->tf_flags & IDE_TFLAG_DMA_PIO_FALLBACK) == 0) { - ide_tf_dump(drive->name, cmd); - tp_ops->write_devctl(hwif, ATA_DEVCTL_OBS); - - if (cmd->ftf_flags & IDE_FTFLAG_OUT_DATA) { - u8 data[2] = { cmd->tf.data, cmd->hob.data }; - - tp_ops->output_data(drive, cmd, data, 2); - } - - if (cmd->valid.out.tf & IDE_VALID_DEVICE) { - u8 HIHI = (cmd->tf_flags & IDE_TFLAG_LBA48) ? - 0xE0 : 0xEF; - - if (!(cmd->ftf_flags & IDE_FTFLAG_FLAGGED)) - cmd->tf.device &= HIHI; - cmd->tf.device |= drive->select; - } - - tp_ops->tf_load(drive, &cmd->hob, cmd->valid.out.hob); - tp_ops->tf_load(drive, &cmd->tf, cmd->valid.out.tf); - } - - switch (cmd->protocol) { - case ATA_PROT_PIO: - if (cmd->tf_flags & IDE_TFLAG_WRITE) { - tp_ops->exec_command(hwif, tf->command); - ndelay(400); /* FIXME */ - return pre_task_out_intr(drive, cmd); - } - handler = task_pio_intr; - fallthrough; - case ATA_PROT_NODATA: - if (handler == NULL) - handler = task_no_data_intr; - ide_execute_command(drive, cmd, handler, WAIT_WORSTCASE); - return ide_started; - case ATA_PROT_DMA: - if (ide_dma_prepare(drive, cmd)) - return ide_stopped; - hwif->expiry = dma_ops->dma_timer_expiry; - ide_execute_command(drive, cmd, ide_dma_intr, 2 * WAIT_CMD); - dma_ops->dma_start(drive); - fallthrough; - default: - return ide_started; - } -} -EXPORT_SYMBOL_GPL(do_rw_taskfile); - -static ide_startstop_t task_no_data_intr(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_cmd *cmd = &hwif->cmd; - struct ide_taskfile *tf = &cmd->tf; - int custom = (cmd->tf_flags & IDE_TFLAG_CUSTOM_HANDLER) ? 1 : 0; - int retries = (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) ? 5 : 1; - u8 stat; - - local_irq_enable_in_hardirq(); - - while (1) { - stat = hwif->tp_ops->read_status(hwif); - if ((stat & ATA_BUSY) == 0 || retries-- == 0) - break; - udelay(10); - }; - - if (!OK_STAT(stat, ATA_DRDY, BAD_STAT)) { - if (custom && tf->command == ATA_CMD_SET_MULTI) { - drive->mult_req = drive->mult_count = 0; - drive->special_flags |= IDE_SFLAG_RECALIBRATE; - (void)ide_dump_status(drive, __func__, stat); - return ide_stopped; - } else if (custom && tf->command == ATA_CMD_INIT_DEV_PARAMS) { - if ((stat & (ATA_ERR | ATA_DRQ)) == 0) { - ide_set_handler(drive, &task_no_data_intr, - WAIT_WORSTCASE); - return ide_started; - } - } - return ide_error(drive, "task_no_data_intr", stat); - } - - if (custom && tf->command == ATA_CMD_SET_MULTI) - drive->mult_count = drive->mult_req; - - if (custom == 0 || tf->command == ATA_CMD_IDLEIMMEDIATE || - tf->command == ATA_CMD_CHK_POWER) { - struct request *rq = hwif->rq; - - if (ata_pm_request(rq)) - ide_complete_pm_rq(drive, rq); - else - ide_finish_cmd(drive, cmd, stat); - } - - return ide_stopped; -} - -static u8 wait_drive_not_busy(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - int retries; - u8 stat; - - /* - * Last sector was transferred, wait until device is ready. This can - * take up to 6 ms on some ATAPI devices, so we will wait max 10 ms. - */ - for (retries = 0; retries < 1000; retries++) { - stat = hwif->tp_ops->read_status(hwif); - - if (stat & ATA_BUSY) - udelay(10); - else - break; - } - - if (stat & ATA_BUSY) - pr_err("%s: drive still BUSY!\n", drive->name); - - return stat; -} - -void ide_pio_bytes(ide_drive_t *drive, struct ide_cmd *cmd, - unsigned int write, unsigned int len) -{ - ide_hwif_t *hwif = drive->hwif; - struct scatterlist *sg = hwif->sg_table; - struct scatterlist *cursg = cmd->cursg; - struct page *page; - unsigned int offset; - u8 *buf; - - if (cursg == NULL) - cursg = cmd->cursg = sg; - - while (len) { - unsigned nr_bytes = min(len, cursg->length - cmd->cursg_ofs); - - page = sg_page(cursg); - offset = cursg->offset + cmd->cursg_ofs; - - /* get the current page and offset */ - page = nth_page(page, (offset >> PAGE_SHIFT)); - offset %= PAGE_SIZE; - - nr_bytes = min_t(unsigned, nr_bytes, (PAGE_SIZE - offset)); - - buf = kmap_atomic(page) + offset; - - cmd->nleft -= nr_bytes; - cmd->cursg_ofs += nr_bytes; - - if (cmd->cursg_ofs == cursg->length) { - cursg = cmd->cursg = sg_next(cmd->cursg); - cmd->cursg_ofs = 0; - } - - /* do the actual data transfer */ - if (write) - hwif->tp_ops->output_data(drive, cmd, buf, nr_bytes); - else - hwif->tp_ops->input_data(drive, cmd, buf, nr_bytes); - - kunmap_atomic(buf); - - len -= nr_bytes; - } -} -EXPORT_SYMBOL_GPL(ide_pio_bytes); - -static void ide_pio_datablock(ide_drive_t *drive, struct ide_cmd *cmd, - unsigned int write) -{ - unsigned int nr_bytes; - - u8 saved_io_32bit = drive->io_32bit; - - if (cmd->tf_flags & IDE_TFLAG_FS) - scsi_req(cmd->rq)->result = 0; - - if (cmd->tf_flags & IDE_TFLAG_IO_16BIT) - drive->io_32bit = 0; - - touch_softlockup_watchdog(); - - if (cmd->tf_flags & IDE_TFLAG_MULTI_PIO) - nr_bytes = min_t(unsigned, cmd->nleft, drive->mult_count << 9); - else - nr_bytes = SECTOR_SIZE; - - ide_pio_bytes(drive, cmd, write, nr_bytes); - - drive->io_32bit = saved_io_32bit; -} - -static void ide_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd) -{ - if (cmd->tf_flags & IDE_TFLAG_FS) { - int nr_bytes = cmd->nbytes - cmd->nleft; - - if (cmd->protocol == ATA_PROT_PIO && - ((cmd->tf_flags & IDE_TFLAG_WRITE) || cmd->nleft == 0)) { - if (cmd->tf_flags & IDE_TFLAG_MULTI_PIO) - nr_bytes -= drive->mult_count << 9; - else - nr_bytes -= SECTOR_SIZE; - } - - if (nr_bytes > 0) - ide_complete_rq(drive, BLK_STS_OK, nr_bytes); - } -} - -void ide_finish_cmd(ide_drive_t *drive, struct ide_cmd *cmd, u8 stat) -{ - struct request *rq = drive->hwif->rq; - u8 err = ide_read_error(drive), nsect = cmd->tf.nsect; - u8 set_xfer = !!(cmd->tf_flags & IDE_TFLAG_SET_XFER); - - ide_complete_cmd(drive, cmd, stat, err); - scsi_req(rq)->result = err; - - if (err == 0 && set_xfer) { - ide_set_xfer_rate(drive, nsect); - ide_driveid_update(drive); - } - - ide_complete_rq(drive, err ? BLK_STS_IOERR : BLK_STS_OK, blk_rq_bytes(rq)); -} - -/* - * Handler for command with PIO data phase. - */ -static ide_startstop_t task_pio_intr(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct ide_cmd *cmd = &drive->hwif->cmd; - u8 stat = hwif->tp_ops->read_status(hwif); - u8 write = !!(cmd->tf_flags & IDE_TFLAG_WRITE); - - if (write == 0) { - /* Error? */ - if (stat & ATA_ERR) - goto out_err; - - /* Didn't want any data? Odd. */ - if ((stat & ATA_DRQ) == 0) { - /* Command all done? */ - if (OK_STAT(stat, ATA_DRDY, ATA_BUSY)) - goto out_end; - - /* Assume it was a spurious irq */ - goto out_wait; - } - } else { - if (!OK_STAT(stat, DRIVE_READY, drive->bad_wstat)) - goto out_err; - - /* Deal with unexpected ATA data phase. */ - if (((stat & ATA_DRQ) == 0) ^ (cmd->nleft == 0)) - goto out_err; - } - - if (write && cmd->nleft == 0) - goto out_end; - - /* Still data left to transfer. */ - ide_pio_datablock(drive, cmd, write); - - /* Are we done? Check status and finish transfer. */ - if (write == 0 && cmd->nleft == 0) { - stat = wait_drive_not_busy(drive); - if (!OK_STAT(stat, 0, BAD_STAT)) - goto out_err; - - goto out_end; - } -out_wait: - /* Still data left to transfer. */ - ide_set_handler(drive, &task_pio_intr, WAIT_WORSTCASE); - return ide_started; -out_end: - if ((cmd->tf_flags & IDE_TFLAG_FS) == 0) - ide_finish_cmd(drive, cmd, stat); - else - ide_complete_rq(drive, BLK_STS_OK, blk_rq_sectors(cmd->rq) << 9); - return ide_stopped; -out_err: - ide_error_cmd(drive, cmd); - return ide_error(drive, __func__, stat); -} - -static ide_startstop_t pre_task_out_intr(ide_drive_t *drive, - struct ide_cmd *cmd) -{ - ide_startstop_t startstop; - - if (ide_wait_stat(&startstop, drive, ATA_DRQ, - drive->bad_wstat, WAIT_DRQ)) { - pr_err("%s: no DRQ after issuing %sWRITE%s\n", drive->name, - (cmd->tf_flags & IDE_TFLAG_MULTI_PIO) ? "MULT" : "", - (drive->dev_flags & IDE_DFLAG_LBA48) ? "_EXT" : ""); - return startstop; - } - - if (!force_irqthreads && (drive->dev_flags & IDE_DFLAG_UNMASK) == 0) - local_irq_disable(); - - ide_set_handler(drive, &task_pio_intr, WAIT_WORSTCASE); - - ide_pio_datablock(drive, cmd, 1); - - return ide_started; -} - -int ide_raw_taskfile(ide_drive_t *drive, struct ide_cmd *cmd, u8 *buf, - u16 nsect) -{ - struct request *rq; - int error; - - rq = blk_get_request(drive->queue, - (cmd->tf_flags & IDE_TFLAG_WRITE) ? - REQ_OP_DRV_OUT : REQ_OP_DRV_IN, 0); - ide_req(rq)->type = ATA_PRIV_TASKFILE; - - /* - * (ks) We transfer currently only whole sectors. - * This is suffient for now. But, it would be great, - * if we would find a solution to transfer any size. - * To support special commands like READ LONG. - */ - if (nsect) { - error = blk_rq_map_kern(drive->queue, rq, buf, - nsect * SECTOR_SIZE, GFP_NOIO); - if (error) - goto put_req; - } - - ide_req(rq)->special = cmd; - cmd->rq = rq; - - blk_execute_rq(NULL, rq, 0); - error = scsi_req(rq)->result ? -EIO : 0; -put_req: - blk_put_request(rq); - return error; -} -EXPORT_SYMBOL(ide_raw_taskfile); - -int ide_no_data_taskfile(ide_drive_t *drive, struct ide_cmd *cmd) -{ - cmd->protocol = ATA_PROT_NODATA; - - return ide_raw_taskfile(drive, cmd, NULL, 0); -} -EXPORT_SYMBOL_GPL(ide_no_data_taskfile); - -#ifdef CONFIG_IDE_TASK_IOCTL -int ide_taskfile_ioctl(ide_drive_t *drive, unsigned long arg) -{ - ide_task_request_t *req_task; - struct ide_cmd cmd; - u8 *outbuf = NULL; - u8 *inbuf = NULL; - u8 *data_buf = NULL; - int err = 0; - int tasksize = sizeof(struct ide_task_request_s); - unsigned int taskin = 0; - unsigned int taskout = 0; - u16 nsect = 0; - char __user *buf = (char __user *)arg; - - req_task = memdup_user(buf, tasksize); - if (IS_ERR(req_task)) - return PTR_ERR(req_task); - - taskout = req_task->out_size; - taskin = req_task->in_size; - - if (taskin > 65536 || taskout > 65536) { - err = -EINVAL; - goto abort; - } - - if (taskout) { - int outtotal = tasksize; - outbuf = kzalloc(taskout, GFP_KERNEL); - if (outbuf == NULL) { - err = -ENOMEM; - goto abort; - } - if (copy_from_user(outbuf, buf + outtotal, taskout)) { - err = -EFAULT; - goto abort; - } - } - - if (taskin) { - int intotal = tasksize + taskout; - inbuf = kzalloc(taskin, GFP_KERNEL); - if (inbuf == NULL) { - err = -ENOMEM; - goto abort; - } - if (copy_from_user(inbuf, buf + intotal, taskin)) { - err = -EFAULT; - goto abort; - } - } - - memset(&cmd, 0, sizeof(cmd)); - - memcpy(&cmd.hob, req_task->hob_ports, HDIO_DRIVE_HOB_HDR_SIZE - 2); - memcpy(&cmd.tf, req_task->io_ports, HDIO_DRIVE_TASK_HDR_SIZE); - - cmd.valid.out.tf = IDE_VALID_DEVICE; - cmd.valid.in.tf = IDE_VALID_DEVICE | IDE_VALID_IN_TF; - cmd.tf_flags = IDE_TFLAG_IO_16BIT; - - if (drive->dev_flags & IDE_DFLAG_LBA48) { - cmd.tf_flags |= IDE_TFLAG_LBA48; - cmd.valid.in.hob = IDE_VALID_IN_HOB; - } - - if (req_task->out_flags.all) { - cmd.ftf_flags |= IDE_FTFLAG_FLAGGED; - - if (req_task->out_flags.b.data) - cmd.ftf_flags |= IDE_FTFLAG_OUT_DATA; - - if (req_task->out_flags.b.nsector_hob) - cmd.valid.out.hob |= IDE_VALID_NSECT; - if (req_task->out_flags.b.sector_hob) - cmd.valid.out.hob |= IDE_VALID_LBAL; - if (req_task->out_flags.b.lcyl_hob) - cmd.valid.out.hob |= IDE_VALID_LBAM; - if (req_task->out_flags.b.hcyl_hob) - cmd.valid.out.hob |= IDE_VALID_LBAH; - - if (req_task->out_flags.b.error_feature) - cmd.valid.out.tf |= IDE_VALID_FEATURE; - if (req_task->out_flags.b.nsector) - cmd.valid.out.tf |= IDE_VALID_NSECT; - if (req_task->out_flags.b.sector) - cmd.valid.out.tf |= IDE_VALID_LBAL; - if (req_task->out_flags.b.lcyl) - cmd.valid.out.tf |= IDE_VALID_LBAM; - if (req_task->out_flags.b.hcyl) - cmd.valid.out.tf |= IDE_VALID_LBAH; - } else { - cmd.valid.out.tf |= IDE_VALID_OUT_TF; - if (cmd.tf_flags & IDE_TFLAG_LBA48) - cmd.valid.out.hob |= IDE_VALID_OUT_HOB; - } - - if (req_task->in_flags.b.data) - cmd.ftf_flags |= IDE_FTFLAG_IN_DATA; - - if (req_task->req_cmd == IDE_DRIVE_TASK_RAW_WRITE) { - /* fixup data phase if needed */ - if (req_task->data_phase == TASKFILE_IN_DMAQ || - req_task->data_phase == TASKFILE_IN_DMA) - cmd.tf_flags |= IDE_TFLAG_WRITE; - } - - cmd.protocol = ATA_PROT_DMA; - - switch (req_task->data_phase) { - case TASKFILE_MULTI_OUT: - if (!drive->mult_count) { - /* (hs): give up if multcount is not set */ - pr_err("%s: %s Multimode Write multcount is not set\n", - drive->name, __func__); - err = -EPERM; - goto abort; - } - cmd.tf_flags |= IDE_TFLAG_MULTI_PIO; - fallthrough; - case TASKFILE_OUT: - cmd.protocol = ATA_PROT_PIO; - fallthrough; - case TASKFILE_OUT_DMAQ: - case TASKFILE_OUT_DMA: - cmd.tf_flags |= IDE_TFLAG_WRITE; - nsect = taskout / SECTOR_SIZE; - data_buf = outbuf; - break; - case TASKFILE_MULTI_IN: - if (!drive->mult_count) { - /* (hs): give up if multcount is not set */ - pr_err("%s: %s Multimode Read multcount is not set\n", - drive->name, __func__); - err = -EPERM; - goto abort; - } - cmd.tf_flags |= IDE_TFLAG_MULTI_PIO; - fallthrough; - case TASKFILE_IN: - cmd.protocol = ATA_PROT_PIO; - fallthrough; - case TASKFILE_IN_DMAQ: - case TASKFILE_IN_DMA: - nsect = taskin / SECTOR_SIZE; - data_buf = inbuf; - break; - case TASKFILE_NO_DATA: - cmd.protocol = ATA_PROT_NODATA; - break; - default: - err = -EFAULT; - goto abort; - } - - if (req_task->req_cmd == IDE_DRIVE_TASK_NO_DATA) - nsect = 0; - else if (!nsect) { - nsect = (cmd.hob.nsect << 8) | cmd.tf.nsect; - - if (!nsect) { - pr_err("%s: in/out command without data\n", - drive->name); - err = -EFAULT; - goto abort; - } - } - - err = ide_raw_taskfile(drive, &cmd, data_buf, nsect); - - memcpy(req_task->hob_ports, &cmd.hob, HDIO_DRIVE_HOB_HDR_SIZE - 2); - memcpy(req_task->io_ports, &cmd.tf, HDIO_DRIVE_TASK_HDR_SIZE); - - if ((cmd.ftf_flags & IDE_FTFLAG_SET_IN_FLAGS) && - req_task->in_flags.all == 0) { - req_task->in_flags.all = IDE_TASKFILE_STD_IN_FLAGS; - if (drive->dev_flags & IDE_DFLAG_LBA48) - req_task->in_flags.all |= (IDE_HOB_STD_IN_FLAGS << 8); - } - - if (copy_to_user(buf, req_task, tasksize)) { - err = -EFAULT; - goto abort; - } - if (taskout) { - int outtotal = tasksize; - if (copy_to_user(buf + outtotal, outbuf, taskout)) { - err = -EFAULT; - goto abort; - } - } - if (taskin) { - int intotal = tasksize + taskout; - if (copy_to_user(buf + intotal, inbuf, taskin)) { - err = -EFAULT; - goto abort; - } - } -abort: - kfree(req_task); - kfree(outbuf); - kfree(inbuf); - - return err; -} -#endif diff --git a/drivers/ide/ide-timings.c b/drivers/ide/ide-timings.c deleted file mode 100644 index cfe78df74b7d..000000000000 --- a/drivers/ide/ide-timings.c +++ /dev/null @@ -1,198 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Copyright (c) 1999-2001 Vojtech Pavlik - * Copyright (c) 2007-2008 Bartlomiej Zolnierkiewicz - * - * Should you need to contact me, the author, you can do so either by - * e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail: - * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic - */ - -#include <linux/kernel.h> -#include <linux/ide.h> -#include <linux/module.h> - -/* - * PIO 0-5, MWDMA 0-2 and UDMA 0-6 timings (in nanoseconds). - * These were taken from ATA/ATAPI-6 standard, rev 0a, except - * for PIO 5, which is a nonstandard extension and UDMA6, which - * is currently supported only by Maxtor drives. - */ - -static struct ide_timing ide_timing[] = { - - { XFER_UDMA_6, 0, 0, 0, 0, 0, 0, 0, 15 }, - { XFER_UDMA_5, 0, 0, 0, 0, 0, 0, 0, 20 }, - { XFER_UDMA_4, 0, 0, 0, 0, 0, 0, 0, 30 }, - { XFER_UDMA_3, 0, 0, 0, 0, 0, 0, 0, 45 }, - - { XFER_UDMA_2, 0, 0, 0, 0, 0, 0, 0, 60 }, - { XFER_UDMA_1, 0, 0, 0, 0, 0, 0, 0, 80 }, - { XFER_UDMA_0, 0, 0, 0, 0, 0, 0, 0, 120 }, - - { XFER_MW_DMA_4, 25, 0, 0, 0, 55, 20, 80, 0 }, - { XFER_MW_DMA_3, 25, 0, 0, 0, 65, 25, 100, 0 }, - { XFER_MW_DMA_2, 25, 0, 0, 0, 70, 25, 120, 0 }, - { XFER_MW_DMA_1, 45, 0, 0, 0, 80, 50, 150, 0 }, - { XFER_MW_DMA_0, 60, 0, 0, 0, 215, 215, 480, 0 }, - - { XFER_SW_DMA_2, 60, 0, 0, 0, 120, 120, 240, 0 }, - { XFER_SW_DMA_1, 90, 0, 0, 0, 240, 240, 480, 0 }, - { XFER_SW_DMA_0, 120, 0, 0, 0, 480, 480, 960, 0 }, - - { XFER_PIO_6, 10, 55, 20, 80, 55, 20, 80, 0 }, - { XFER_PIO_5, 15, 65, 25, 100, 65, 25, 100, 0 }, - { XFER_PIO_4, 25, 70, 25, 120, 70, 25, 120, 0 }, - { XFER_PIO_3, 30, 80, 70, 180, 80, 70, 180, 0 }, - - { XFER_PIO_2, 30, 290, 40, 330, 100, 90, 240, 0 }, - { XFER_PIO_1, 50, 290, 93, 383, 125, 100, 383, 0 }, - { XFER_PIO_0, 70, 290, 240, 600, 165, 150, 600, 0 }, - - { XFER_PIO_SLOW, 120, 290, 240, 960, 290, 240, 960, 0 }, - - { 0xff } -}; - -struct ide_timing *ide_timing_find_mode(u8 speed) -{ - struct ide_timing *t; - - for (t = ide_timing; t->mode != speed; t++) - if (t->mode == 0xff) - return NULL; - return t; -} -EXPORT_SYMBOL_GPL(ide_timing_find_mode); - -u16 ide_pio_cycle_time(ide_drive_t *drive, u8 pio) -{ - u16 *id = drive->id; - struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); - u16 cycle = 0; - - if (id[ATA_ID_FIELD_VALID] & 2) { - if (ata_id_has_iordy(drive->id)) - cycle = id[ATA_ID_EIDE_PIO_IORDY]; - else - cycle = id[ATA_ID_EIDE_PIO]; - - /* conservative "downgrade" for all pre-ATA2 drives */ - if (pio < 3 && cycle < t->cycle) - cycle = 0; /* use standard timing */ - - /* Use the standard timing for the CF specific modes too */ - if (pio > 4 && ata_id_is_cfa(id)) - cycle = 0; - } - - return cycle ? cycle : t->cycle; -} -EXPORT_SYMBOL_GPL(ide_pio_cycle_time); - -#define ENOUGH(v, unit) (((v) - 1) / (unit) + 1) -#define EZ(v, unit) ((v) ? ENOUGH((v) * 1000, unit) : 0) - -static void ide_timing_quantize(struct ide_timing *t, struct ide_timing *q, - int T, int UT) -{ - q->setup = EZ(t->setup, T); - q->act8b = EZ(t->act8b, T); - q->rec8b = EZ(t->rec8b, T); - q->cyc8b = EZ(t->cyc8b, T); - q->active = EZ(t->active, T); - q->recover = EZ(t->recover, T); - q->cycle = EZ(t->cycle, T); - q->udma = EZ(t->udma, UT); -} - -void ide_timing_merge(struct ide_timing *a, struct ide_timing *b, - struct ide_timing *m, unsigned int what) -{ - if (what & IDE_TIMING_SETUP) - m->setup = max(a->setup, b->setup); - if (what & IDE_TIMING_ACT8B) - m->act8b = max(a->act8b, b->act8b); - if (what & IDE_TIMING_REC8B) - m->rec8b = max(a->rec8b, b->rec8b); - if (what & IDE_TIMING_CYC8B) - m->cyc8b = max(a->cyc8b, b->cyc8b); - if (what & IDE_TIMING_ACTIVE) - m->active = max(a->active, b->active); - if (what & IDE_TIMING_RECOVER) - m->recover = max(a->recover, b->recover); - if (what & IDE_TIMING_CYCLE) - m->cycle = max(a->cycle, b->cycle); - if (what & IDE_TIMING_UDMA) - m->udma = max(a->udma, b->udma); -} -EXPORT_SYMBOL_GPL(ide_timing_merge); - -int ide_timing_compute(ide_drive_t *drive, u8 speed, - struct ide_timing *t, int T, int UT) -{ - u16 *id = drive->id; - struct ide_timing *s, p; - - /* - * Find the mode. - */ - s = ide_timing_find_mode(speed); - if (s == NULL) - return -EINVAL; - - /* - * Copy the timing from the table. - */ - *t = *s; - - /* - * If the drive is an EIDE drive, it can tell us it needs extended - * PIO/MWDMA cycle timing. - */ - if (id[ATA_ID_FIELD_VALID] & 2) { /* EIDE drive */ - memset(&p, 0, sizeof(p)); - - if (speed >= XFER_PIO_0 && speed < XFER_SW_DMA_0) { - if (speed <= XFER_PIO_2) - p.cycle = p.cyc8b = id[ATA_ID_EIDE_PIO]; - else if ((speed <= XFER_PIO_4) || - (speed == XFER_PIO_5 && !ata_id_is_cfa(id))) - p.cycle = p.cyc8b = id[ATA_ID_EIDE_PIO_IORDY]; - } else if (speed >= XFER_MW_DMA_0 && speed <= XFER_MW_DMA_2) - p.cycle = id[ATA_ID_EIDE_DMA_MIN]; - - ide_timing_merge(&p, t, t, IDE_TIMING_CYCLE | IDE_TIMING_CYC8B); - } - - /* - * Convert the timing to bus clock counts. - */ - ide_timing_quantize(t, t, T, UT); - - /* - * Even in DMA/UDMA modes we still use PIO access for IDENTIFY, - * S.M.A.R.T and some other commands. We have to ensure that the - * DMA cycle timing is slower/equal than the current PIO timing. - */ - if (speed >= XFER_SW_DMA_0) { - ide_timing_compute(drive, drive->pio_mode, &p, T, UT); - ide_timing_merge(&p, t, t, IDE_TIMING_ALL); - } - - /* - * Lengthen active & recovery time so that cycle time is correct. - */ - if (t->act8b + t->rec8b < t->cyc8b) { - t->act8b += (t->cyc8b - (t->act8b + t->rec8b)) / 2; - t->rec8b = t->cyc8b - t->act8b; - } - - if (t->active + t->recover < t->cycle) { - t->active += (t->cycle - (t->active + t->recover)) / 2; - t->recover = t->cycle - t->active; - } - - return 0; -} -EXPORT_SYMBOL_GPL(ide_timing_compute); diff --git a/drivers/ide/ide-xfer-mode.c b/drivers/ide/ide-xfer-mode.c deleted file mode 100644 index 0b9709b489b7..000000000000 --- a/drivers/ide/ide-xfer-mode.c +++ /dev/null @@ -1,267 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -#include <linux/types.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/export.h> -#include <linux/interrupt.h> -#include <linux/ide.h> -#include <linux/bitops.h> - -static const char *udma_str[] = - { "UDMA/16", "UDMA/25", "UDMA/33", "UDMA/44", - "UDMA/66", "UDMA/100", "UDMA/133", "UDMA7" }; -static const char *mwdma_str[] = - { "MWDMA0", "MWDMA1", "MWDMA2", "MWDMA3", "MWDMA4" }; -static const char *swdma_str[] = - { "SWDMA0", "SWDMA1", "SWDMA2" }; -static const char *pio_str[] = - { "PIO0", "PIO1", "PIO2", "PIO3", "PIO4", "PIO5", "PIO6" }; - -/** - * ide_xfer_verbose - return IDE mode names - * @mode: transfer mode - * - * Returns a constant string giving the name of the mode - * requested. - */ - -const char *ide_xfer_verbose(u8 mode) -{ - const char *s; - u8 i = mode & 0xf; - - if (mode >= XFER_UDMA_0 && mode <= XFER_UDMA_7) - s = udma_str[i]; - else if (mode >= XFER_MW_DMA_0 && mode <= XFER_MW_DMA_4) - s = mwdma_str[i]; - else if (mode >= XFER_SW_DMA_0 && mode <= XFER_SW_DMA_2) - s = swdma_str[i]; - else if (mode >= XFER_PIO_0 && mode <= XFER_PIO_6) - s = pio_str[i & 0x7]; - else if (mode == XFER_PIO_SLOW) - s = "PIO SLOW"; - else - s = "XFER ERROR"; - - return s; -} -EXPORT_SYMBOL(ide_xfer_verbose); - -/** - * ide_get_best_pio_mode - get PIO mode from drive - * @drive: drive to consider - * @mode_wanted: preferred mode - * @max_mode: highest allowed mode - * - * This routine returns the recommended PIO settings for a given drive, - * based on the drive->id information and the ide_pio_blacklist[]. - * - * Drive PIO mode is auto-selected if 255 is passed as mode_wanted. - * This is used by most chipset support modules when "auto-tuning". - */ - -static u8 ide_get_best_pio_mode(ide_drive_t *drive, u8 mode_wanted, u8 max_mode) -{ - u16 *id = drive->id; - int pio_mode = -1, overridden = 0; - - if (mode_wanted != 255) - return min_t(u8, mode_wanted, max_mode); - - if ((drive->hwif->host_flags & IDE_HFLAG_PIO_NO_BLACKLIST) == 0) - pio_mode = ide_scan_pio_blacklist((char *)&id[ATA_ID_PROD]); - - if (pio_mode != -1) { - printk(KERN_INFO "%s: is on PIO blacklist\n", drive->name); - } else { - pio_mode = id[ATA_ID_OLD_PIO_MODES] >> 8; - if (pio_mode > 2) { /* 2 is maximum allowed tPIO value */ - pio_mode = 2; - overridden = 1; - } - - if (id[ATA_ID_FIELD_VALID] & 2) { /* ATA2? */ - if (ata_id_is_cfa(id) && (id[ATA_ID_CFA_MODES] & 7)) - pio_mode = 4 + min_t(int, 2, - id[ATA_ID_CFA_MODES] & 7); - else if (ata_id_has_iordy(id)) { - if (id[ATA_ID_PIO_MODES] & 7) { - overridden = 0; - if (id[ATA_ID_PIO_MODES] & 4) - pio_mode = 5; - else if (id[ATA_ID_PIO_MODES] & 2) - pio_mode = 4; - else - pio_mode = 3; - } - } - } - - if (overridden) - printk(KERN_INFO "%s: tPIO > 2, assuming tPIO = 2\n", - drive->name); - } - - if (pio_mode > max_mode) - pio_mode = max_mode; - - return pio_mode; -} - -int ide_pio_need_iordy(ide_drive_t *drive, const u8 pio) -{ - /* - * IORDY may lead to controller lock up on certain controllers - * if the port is not occupied. - */ - if (pio == 0 && (drive->hwif->port_flags & IDE_PFLAG_PROBING)) - return 0; - return ata_id_pio_need_iordy(drive->id, pio); -} -EXPORT_SYMBOL_GPL(ide_pio_need_iordy); - -int ide_set_pio_mode(ide_drive_t *drive, const u8 mode) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_port_ops *port_ops = hwif->port_ops; - - if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE) - return 0; - - if (port_ops == NULL || port_ops->set_pio_mode == NULL) - return -1; - - /* - * TODO: temporary hack for some legacy host drivers that didn't - * set transfer mode on the device in ->set_pio_mode method... - */ - if (port_ops->set_dma_mode == NULL) { - drive->pio_mode = mode; - port_ops->set_pio_mode(hwif, drive); - return 0; - } - - if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) { - if (ide_config_drive_speed(drive, mode)) - return -1; - drive->pio_mode = mode; - port_ops->set_pio_mode(hwif, drive); - return 0; - } else { - drive->pio_mode = mode; - port_ops->set_pio_mode(hwif, drive); - return ide_config_drive_speed(drive, mode); - } -} - -int ide_set_dma_mode(ide_drive_t *drive, const u8 mode) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_port_ops *port_ops = hwif->port_ops; - - if (hwif->host_flags & IDE_HFLAG_NO_SET_MODE) - return 0; - - if (port_ops == NULL || port_ops->set_dma_mode == NULL) - return -1; - - if (hwif->host_flags & IDE_HFLAG_POST_SET_MODE) { - if (ide_config_drive_speed(drive, mode)) - return -1; - drive->dma_mode = mode; - port_ops->set_dma_mode(hwif, drive); - return 0; - } else { - drive->dma_mode = mode; - port_ops->set_dma_mode(hwif, drive); - return ide_config_drive_speed(drive, mode); - } -} -EXPORT_SYMBOL_GPL(ide_set_dma_mode); - -/* req_pio == "255" for auto-tune */ -void ide_set_pio(ide_drive_t *drive, u8 req_pio) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_port_ops *port_ops = hwif->port_ops; - u8 host_pio, pio; - - if (port_ops == NULL || port_ops->set_pio_mode == NULL || - (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)) - return; - - BUG_ON(hwif->pio_mask == 0x00); - - host_pio = fls(hwif->pio_mask) - 1; - - pio = ide_get_best_pio_mode(drive, req_pio, host_pio); - - /* - * TODO: - * - report device max PIO mode - * - check req_pio != 255 against device max PIO mode - */ - printk(KERN_DEBUG "%s: host max PIO%d wanted PIO%d%s selected PIO%d\n", - drive->name, host_pio, req_pio, - req_pio == 255 ? "(auto-tune)" : "", pio); - - (void)ide_set_pio_mode(drive, XFER_PIO_0 + pio); -} -EXPORT_SYMBOL_GPL(ide_set_pio); - -/** - * ide_rate_filter - filter transfer mode - * @drive: IDE device - * @speed: desired speed - * - * Given the available transfer modes this function returns - * the best available speed at or below the speed requested. - * - * TODO: check device PIO capabilities - */ - -static u8 ide_rate_filter(ide_drive_t *drive, u8 speed) -{ - ide_hwif_t *hwif = drive->hwif; - u8 mode = ide_find_dma_mode(drive, speed); - - if (mode == 0) { - if (hwif->pio_mask) - mode = fls(hwif->pio_mask) - 1 + XFER_PIO_0; - else - mode = XFER_PIO_4; - } - -/* printk("%s: mode 0x%02x, speed 0x%02x\n", __func__, mode, speed); */ - - return min(speed, mode); -} - -/** - * ide_set_xfer_rate - set transfer rate - * @drive: drive to set - * @rate: speed to attempt to set - * - * General helper for setting the speed of an IDE device. This - * function knows about user enforced limits from the configuration - * which ->set_pio_mode/->set_dma_mode does not. - */ - -int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) -{ - ide_hwif_t *hwif = drive->hwif; - const struct ide_port_ops *port_ops = hwif->port_ops; - - if (port_ops == NULL || port_ops->set_dma_mode == NULL || - (hwif->host_flags & IDE_HFLAG_NO_SET_MODE)) - return -1; - - rate = ide_rate_filter(drive, rate); - - BUG_ON(rate < XFER_PIO_0); - - if (rate >= XFER_PIO_0 && rate <= XFER_PIO_6) - return ide_set_pio_mode(drive, rate); - - return ide_set_dma_mode(drive, rate); -} diff --git a/drivers/ide/ide.c b/drivers/ide/ide.c deleted file mode 100644 index 9a9c64fd1032..000000000000 --- a/drivers/ide/ide.c +++ /dev/null @@ -1,415 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1994-1998 Linus Torvalds & authors (see below) - * Copyright (C) 2003-2005, 2007 Bartlomiej Zolnierkiewicz - */ - -/* - * Mostly written by Mark Lord <mlord@pobox.com> - * and Gadi Oxman <gadio@netvision.net.il> - * and Andre Hedrick <andre@linux-ide.org> - * - * See linux/MAINTAINERS for address of current maintainer. - * - * This is the multiple IDE interface driver, as evolved from hd.c. - * It supports up to MAX_HWIFS IDE interfaces, on one or more IRQs - * (usually 14 & 15). - * There can be up to two drives per interface, as per the ATA-2 spec. - * - * ... - * - * From hd.c: - * | - * | It traverses the request-list, using interrupts to jump between functions. - * | As nearly all functions can be called within interrupts, we may not sleep. - * | Special care is recommended. Have Fun! - * | - * | modified by Drew Eckhardt to check nr of hd's from the CMOS. - * | - * | Thanks to Branko Lankester, lankeste@fwi.uva.nl, who found a bug - * | in the early extended-partition checks and added DM partitions. - * | - * | Early work on error handling by Mika Liljeberg (liljeber@cs.Helsinki.FI). - * | - * | IRQ-unmask, drive-id, multiple-mode, support for ">16 heads", - * | and general streamlining by Mark Lord (mlord@pobox.com). - * - * October, 1994 -- Complete line-by-line overhaul for linux 1.1.x, by: - * - * Mark Lord (mlord@pobox.com) (IDE Perf.Pkg) - * Delman Lee (delman@ieee.org) ("Mr. atdisk2") - * Scott Snyder (snyder@fnald0.fnal.gov) (ATAPI IDE cd-rom) - * - * This was a rewrite of just about everything from hd.c, though some original - * code is still sprinkled about. Think of it as a major evolution, with - * inspiration from lots of linux users, esp. hamish@zot.apana.org.au - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/string.h> -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/major.h> -#include <linux/errno.h> -#include <linux/genhd.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/hdreg.h> -#include <linux/completion.h> -#include <linux/device.h> - -struct class *ide_port_class; - -/** - * ide_device_get - get an additional reference to a ide_drive_t - * @drive: device to get a reference to - * - * Gets a reference to the ide_drive_t and increments the use count of the - * underlying LLDD module. - */ -int ide_device_get(ide_drive_t *drive) -{ - struct device *host_dev; - struct module *module; - - if (!get_device(&drive->gendev)) - return -ENXIO; - - host_dev = drive->hwif->host->dev[0]; - module = host_dev ? host_dev->driver->owner : NULL; - - if (module && !try_module_get(module)) { - put_device(&drive->gendev); - return -ENXIO; - } - - return 0; -} -EXPORT_SYMBOL_GPL(ide_device_get); - -/** - * ide_device_put - release a reference to a ide_drive_t - * @drive: device to release a reference on - * - * Release a reference to the ide_drive_t and decrements the use count of - * the underlying LLDD module. - */ -void ide_device_put(ide_drive_t *drive) -{ -#ifdef CONFIG_MODULE_UNLOAD - struct device *host_dev = drive->hwif->host->dev[0]; - struct module *module = host_dev ? host_dev->driver->owner : NULL; - - module_put(module); -#endif - put_device(&drive->gendev); -} -EXPORT_SYMBOL_GPL(ide_device_put); - -static int ide_bus_match(struct device *dev, struct device_driver *drv) -{ - return 1; -} - -static int ide_uevent(struct device *dev, struct kobj_uevent_env *env) -{ - ide_drive_t *drive = to_ide_device(dev); - - add_uevent_var(env, "MEDIA=%s", ide_media_string(drive)); - add_uevent_var(env, "DRIVENAME=%s", drive->name); - add_uevent_var(env, "MODALIAS=ide:m-%s", ide_media_string(drive)); - return 0; -} - -static int generic_ide_probe(struct device *dev) -{ - ide_drive_t *drive = to_ide_device(dev); - struct ide_driver *drv = to_ide_driver(dev->driver); - - return drv->probe ? drv->probe(drive) : -ENODEV; -} - -static int generic_ide_remove(struct device *dev) -{ - ide_drive_t *drive = to_ide_device(dev); - struct ide_driver *drv = to_ide_driver(dev->driver); - - if (drv->remove) - drv->remove(drive); - - return 0; -} - -static void generic_ide_shutdown(struct device *dev) -{ - ide_drive_t *drive = to_ide_device(dev); - struct ide_driver *drv = to_ide_driver(dev->driver); - - if (dev->driver && drv->shutdown) - drv->shutdown(drive); -} - -struct bus_type ide_bus_type = { - .name = "ide", - .match = ide_bus_match, - .uevent = ide_uevent, - .probe = generic_ide_probe, - .remove = generic_ide_remove, - .shutdown = generic_ide_shutdown, - .dev_groups = ide_dev_groups, - .suspend = generic_ide_suspend, - .resume = generic_ide_resume, -}; - -EXPORT_SYMBOL_GPL(ide_bus_type); - -int ide_vlb_clk; -EXPORT_SYMBOL_GPL(ide_vlb_clk); - -module_param_named(vlb_clock, ide_vlb_clk, int, 0); -MODULE_PARM_DESC(vlb_clock, "VLB clock frequency (in MHz)"); - -int ide_pci_clk; -EXPORT_SYMBOL_GPL(ide_pci_clk); - -module_param_named(pci_clock, ide_pci_clk, int, 0); -MODULE_PARM_DESC(pci_clock, "PCI bus clock frequency (in MHz)"); - -static int ide_set_dev_param_mask(const char *s, const struct kernel_param *kp) -{ - unsigned int a, b, i, j = 1; - unsigned int *dev_param_mask = (unsigned int *)kp->arg; - - /* controller . device (0 or 1) [ : 1 (set) | 0 (clear) ] */ - if (sscanf(s, "%u.%u:%u", &a, &b, &j) != 3 && - sscanf(s, "%u.%u", &a, &b) != 2) - return -EINVAL; - - i = a * MAX_DRIVES + b; - - if (i >= MAX_HWIFS * MAX_DRIVES || j > 1) - return -EINVAL; - - if (j) - *dev_param_mask |= (1 << i); - else - *dev_param_mask &= ~(1 << i); - - return 0; -} - -static const struct kernel_param_ops param_ops_ide_dev_mask = { - .set = ide_set_dev_param_mask -}; - -#define param_check_ide_dev_mask(name, p) param_check_uint(name, p) - -static unsigned int ide_nodma; - -module_param_named(nodma, ide_nodma, ide_dev_mask, 0); -MODULE_PARM_DESC(nodma, "disallow DMA for a device"); - -static unsigned int ide_noflush; - -module_param_named(noflush, ide_noflush, ide_dev_mask, 0); -MODULE_PARM_DESC(noflush, "disable flush requests for a device"); - -static unsigned int ide_nohpa; - -module_param_named(nohpa, ide_nohpa, ide_dev_mask, 0); -MODULE_PARM_DESC(nohpa, "disable Host Protected Area for a device"); - -static unsigned int ide_noprobe; - -module_param_named(noprobe, ide_noprobe, ide_dev_mask, 0); -MODULE_PARM_DESC(noprobe, "skip probing for a device"); - -static unsigned int ide_nowerr; - -module_param_named(nowerr, ide_nowerr, ide_dev_mask, 0); -MODULE_PARM_DESC(nowerr, "ignore the ATA_DF bit for a device"); - -static unsigned int ide_cdroms; - -module_param_named(cdrom, ide_cdroms, ide_dev_mask, 0); -MODULE_PARM_DESC(cdrom, "force device as a CD-ROM"); - -struct chs_geom { - unsigned int cyl; - u8 head; - u8 sect; -}; - -static unsigned int ide_disks; -static struct chs_geom ide_disks_chs[MAX_HWIFS * MAX_DRIVES]; - -static int ide_set_disk_chs(const char *str, const struct kernel_param *kp) -{ - unsigned int a, b, c = 0, h = 0, s = 0, i, j = 1; - - /* controller . device (0 or 1) : Cylinders , Heads , Sectors */ - /* controller . device (0 or 1) : 1 (use CHS) | 0 (ignore CHS) */ - if (sscanf(str, "%u.%u:%u,%u,%u", &a, &b, &c, &h, &s) != 5 && - sscanf(str, "%u.%u:%u", &a, &b, &j) != 3) - return -EINVAL; - - i = a * MAX_DRIVES + b; - - if (i >= MAX_HWIFS * MAX_DRIVES || j > 1) - return -EINVAL; - - if (c > INT_MAX || h > 255 || s > 255) - return -EINVAL; - - if (j) - ide_disks |= (1 << i); - else - ide_disks &= ~(1 << i); - - ide_disks_chs[i].cyl = c; - ide_disks_chs[i].head = h; - ide_disks_chs[i].sect = s; - - return 0; -} - -module_param_call(chs, ide_set_disk_chs, NULL, NULL, 0); -MODULE_PARM_DESC(chs, "force device as a disk (using CHS)"); - -static void ide_dev_apply_params(ide_drive_t *drive, u8 unit) -{ - int i = drive->hwif->index * MAX_DRIVES + unit; - - if (ide_nodma & (1 << i)) { - printk(KERN_INFO "ide: disallowing DMA for %s\n", drive->name); - drive->dev_flags |= IDE_DFLAG_NODMA; - } - if (ide_noflush & (1 << i)) { - printk(KERN_INFO "ide: disabling flush requests for %s\n", - drive->name); - drive->dev_flags |= IDE_DFLAG_NOFLUSH; - } - if (ide_nohpa & (1 << i)) { - printk(KERN_INFO "ide: disabling Host Protected Area for %s\n", - drive->name); - drive->dev_flags |= IDE_DFLAG_NOHPA; - } - if (ide_noprobe & (1 << i)) { - printk(KERN_INFO "ide: skipping probe for %s\n", drive->name); - drive->dev_flags |= IDE_DFLAG_NOPROBE; - } - if (ide_nowerr & (1 << i)) { - printk(KERN_INFO "ide: ignoring the ATA_DF bit for %s\n", - drive->name); - drive->bad_wstat = BAD_R_STAT; - } - if (ide_cdroms & (1 << i)) { - printk(KERN_INFO "ide: forcing %s as a CD-ROM\n", drive->name); - drive->dev_flags |= IDE_DFLAG_PRESENT; - drive->media = ide_cdrom; - /* an ATAPI device ignores DRDY */ - drive->ready_stat = 0; - } - if (ide_disks & (1 << i)) { - drive->cyl = drive->bios_cyl = ide_disks_chs[i].cyl; - drive->head = drive->bios_head = ide_disks_chs[i].head; - drive->sect = drive->bios_sect = ide_disks_chs[i].sect; - - printk(KERN_INFO "ide: forcing %s as a disk (%d/%d/%d)\n", - drive->name, - drive->cyl, drive->head, drive->sect); - - drive->dev_flags |= IDE_DFLAG_FORCED_GEOM | IDE_DFLAG_PRESENT; - drive->media = ide_disk; - drive->ready_stat = ATA_DRDY; - } -} - -static unsigned int ide_ignore_cable; - -static int ide_set_ignore_cable(const char *s, const struct kernel_param *kp) -{ - int i, j = 1; - - /* controller (ignore) */ - /* controller : 1 (ignore) | 0 (use) */ - if (sscanf(s, "%d:%d", &i, &j) != 2 && sscanf(s, "%d", &i) != 1) - return -EINVAL; - - if (i >= MAX_HWIFS || j < 0 || j > 1) - return -EINVAL; - - if (j) - ide_ignore_cable |= (1 << i); - else - ide_ignore_cable &= ~(1 << i); - - return 0; -} - -module_param_call(ignore_cable, ide_set_ignore_cable, NULL, NULL, 0); -MODULE_PARM_DESC(ignore_cable, "ignore cable detection"); - -void ide_port_apply_params(ide_hwif_t *hwif) -{ - ide_drive_t *drive; - int i; - - if (ide_ignore_cable & (1 << hwif->index)) { - printk(KERN_INFO "ide: ignoring cable detection for %s\n", - hwif->name); - hwif->cbl = ATA_CBL_PATA40_SHORT; - } - - ide_port_for_each_dev(i, drive, hwif) - ide_dev_apply_params(drive, i); -} - -/* - * This is gets invoked once during initialization, to set *everything* up - */ -static int __init ide_init(void) -{ - int ret; - - printk(KERN_INFO "Uniform Multi-Platform E-IDE driver\n"); - - ret = bus_register(&ide_bus_type); - if (ret < 0) { - printk(KERN_WARNING "IDE: bus_register error: %d\n", ret); - return ret; - } - - ide_port_class = class_create(THIS_MODULE, "ide_port"); - if (IS_ERR(ide_port_class)) { - ret = PTR_ERR(ide_port_class); - goto out_port_class; - } - - ide_acpi_init(); - - proc_ide_create(); - - return 0; - -out_port_class: - bus_unregister(&ide_bus_type); - - return ret; -} - -static void __exit ide_exit(void) -{ - proc_ide_destroy(); - - class_destroy(ide_port_class); - - bus_unregister(&ide_bus_type); -} - -module_init(ide_init); -module_exit(ide_exit); - -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/ide_platform.c b/drivers/ide/ide_platform.c deleted file mode 100644 index 91639fd6c276..000000000000 --- a/drivers/ide/ide_platform.c +++ /dev/null @@ -1,133 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Platform IDE driver - * - * Copyright (C) 2007 MontaVista Software - * - * Maintainer: Kumar Gala <galak@kernel.crashing.org> - */ - -#include <linux/types.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/ide.h> -#include <linux/ioport.h> -#include <linux/module.h> -#include <linux/ata_platform.h> -#include <linux/platform_device.h> -#include <linux/interrupt.h> -#include <linux/io.h> - -static void plat_ide_setup_ports(struct ide_hw *hw, void __iomem *base, - void __iomem *ctrl, - struct pata_platform_info *pdata, int irq) -{ - unsigned long port = (unsigned long)base; - int i; - - hw->io_ports.data_addr = port; - - port += (1 << pdata->ioport_shift); - for (i = 1; i <= 7; - i++, port += (1 << pdata->ioport_shift)) - hw->io_ports_array[i] = port; - - hw->io_ports.ctl_addr = (unsigned long)ctrl; - - hw->irq = irq; -} - -static const struct ide_port_info platform_ide_port_info = { - .host_flags = IDE_HFLAG_NO_DMA, - .chipset = ide_generic, -}; - -static int plat_ide_probe(struct platform_device *pdev) -{ - struct resource *res_base, *res_alt, *res_irq; - void __iomem *base, *alt_base; - struct pata_platform_info *pdata; - struct ide_host *host; - int ret = 0, mmio = 0; - struct ide_hw hw, *hws[] = { &hw }; - struct ide_port_info d = platform_ide_port_info; - - pdata = dev_get_platdata(&pdev->dev); - - /* get a pointer to the register memory */ - res_base = platform_get_resource(pdev, IORESOURCE_IO, 0); - res_alt = platform_get_resource(pdev, IORESOURCE_IO, 1); - - if (!res_base || !res_alt) { - res_base = platform_get_resource(pdev, IORESOURCE_MEM, 0); - res_alt = platform_get_resource(pdev, IORESOURCE_MEM, 1); - if (!res_base || !res_alt) { - ret = -ENOMEM; - goto out; - } - mmio = 1; - } - - res_irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (!res_irq) { - ret = -EINVAL; - goto out; - } - - if (mmio) { - base = devm_ioremap(&pdev->dev, - res_base->start, resource_size(res_base)); - alt_base = devm_ioremap(&pdev->dev, - res_alt->start, resource_size(res_alt)); - } else { - base = devm_ioport_map(&pdev->dev, - res_base->start, resource_size(res_base)); - alt_base = devm_ioport_map(&pdev->dev, - res_alt->start, resource_size(res_alt)); - } - - memset(&hw, 0, sizeof(hw)); - plat_ide_setup_ports(&hw, base, alt_base, pdata, res_irq->start); - hw.dev = &pdev->dev; - - d.irq_flags = res_irq->flags & IRQF_TRIGGER_MASK; - if (res_irq->flags & IORESOURCE_IRQ_SHAREABLE) - d.irq_flags |= IRQF_SHARED; - - if (mmio) - d.host_flags |= IDE_HFLAG_MMIO; - - ret = ide_host_add(&d, hws, 1, &host); - if (ret) - goto out; - - platform_set_drvdata(pdev, host); - - return 0; - -out: - return ret; -} - -static int plat_ide_remove(struct platform_device *pdev) -{ - struct ide_host *host = dev_get_drvdata(&pdev->dev); - - ide_host_remove(host); - - return 0; -} - -static struct platform_driver platform_ide_driver = { - .driver = { - .name = "pata_platform", - }, - .probe = plat_ide_probe, - .remove = plat_ide_remove, -}; - -module_platform_driver(platform_ide_driver); - -MODULE_DESCRIPTION("Platform IDE driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:pata_platform"); diff --git a/drivers/ide/it8172.c b/drivers/ide/it8172.c deleted file mode 100644 index b6f674ab4fb7..000000000000 --- a/drivers/ide/it8172.c +++ /dev/null @@ -1,165 +0,0 @@ -/* - * - * BRIEF MODULE DESCRIPTION - * IT8172 IDE controller support - * - * Copyright (C) 2000 MontaVista Software Inc. - * Copyright (C) 2008 Shane McDonald - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; either version 2 of the License, or (at your - * option) any later version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN - * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, - * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON - * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/ioport.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#define DRV_NAME "IT8172" - -static void it8172_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u16 drive_enables; - u32 drive_timing; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - /* - * The highest value of DIOR/DIOW pulse width and recovery time - * that can be set in the IT8172 is 8 PCI clock cycles. As a result, - * it cannot be configured for PIO mode 0. This table sets these - * parameters to the maximum supported by the IT8172. - */ - static const u8 timings[] = { 0x3f, 0x3c, 0x1b, 0x12, 0x0a }; - - pci_read_config_word(dev, 0x40, &drive_enables); - pci_read_config_dword(dev, 0x44, &drive_timing); - - /* - * Enable port 0x44. The IT8172 spec is confused; it calls - * this register the "Slave IDE Timing Register", but in fact, - * it controls timing for both master and slave drives. - */ - drive_enables |= 0x4000; - - drive_enables &= drive->dn ? 0xc006 : 0xc060; - if (drive->media == ide_disk) - /* enable prefetch */ - drive_enables |= 0x0004 << (drive->dn * 4); - if (ide_pio_need_iordy(drive, pio)) - /* enable IORDY sample-point */ - drive_enables |= 0x0002 << (drive->dn * 4); - - drive_timing &= drive->dn ? 0x00003f00 : 0x000fc000; - drive_timing |= timings[pio] << (drive->dn * 6 + 8); - - pci_write_config_word(dev, 0x40, drive_enables); - pci_write_config_dword(dev, 0x44, drive_timing); -} - -static void it8172_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - int a_speed = 3 << (drive->dn * 4); - int u_flag = 1 << drive->dn; - int u_speed = 0; - u8 reg48, reg4a; - const u8 speed = drive->dma_mode; - - pci_read_config_byte(dev, 0x48, ®48); - pci_read_config_byte(dev, 0x4a, ®4a); - - if (speed >= XFER_UDMA_0) { - u8 udma = speed - XFER_UDMA_0; - u_speed = udma << (drive->dn * 4); - - pci_write_config_byte(dev, 0x48, reg48 | u_flag); - reg4a &= ~a_speed; - pci_write_config_byte(dev, 0x4a, reg4a | u_speed); - } else { - const u8 mwdma_to_pio[] = { 0, 3, 4 }; - - pci_write_config_byte(dev, 0x48, reg48 & ~u_flag); - pci_write_config_byte(dev, 0x4a, reg4a & ~a_speed); - - drive->pio_mode = - mwdma_to_pio[speed - XFER_MW_DMA_0] + XFER_PIO_0; - - it8172_set_pio_mode(hwif, drive); - } -} - - -static const struct ide_port_ops it8172_port_ops = { - .set_pio_mode = it8172_set_pio_mode, - .set_dma_mode = it8172_set_dma_mode, -}; - -static const struct ide_port_info it8172_port_info = { - .name = DRV_NAME, - .port_ops = &it8172_port_ops, - .enablebits = { {0x41, 0x80, 0x80}, {0x00, 0x00, 0x00} }, - .host_flags = IDE_HFLAG_SINGLE, - .pio_mask = ATA_PIO4 & ~ATA_PIO0, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA2, -}; - -static int it8172_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE) - return -ENODEV; /* IT8172 is more than an IDE controller */ - return ide_pci_init_one(dev, &it8172_port_info, NULL); -} - -static struct pci_device_id it8172_pci_tbl[] = { - { PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8172), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, it8172_pci_tbl); - -static struct pci_driver it8172_pci_driver = { - .name = "IT8172_IDE", - .id_table = it8172_pci_tbl, - .probe = it8172_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init it8172_ide_init(void) -{ - return ide_pci_register_driver(&it8172_pci_driver); -} - -static void __exit it8172_ide_exit(void) -{ - pci_unregister_driver(&it8172_pci_driver); -} - -module_init(it8172_ide_init); -module_exit(it8172_ide_exit); - -MODULE_AUTHOR("Steve Longerbeam"); -MODULE_DESCRIPTION("PCI driver module for ITE 8172 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/it8213.c b/drivers/ide/it8213.c deleted file mode 100644 index d0bf4430c437..000000000000 --- a/drivers/ide/it8213.c +++ /dev/null @@ -1,217 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * ITE 8213 IDE driver - * - * Copyright (C) 2006 Jack Lee - * Copyright (C) 2006 Alan Cox - * Copyright (C) 2007 Bartlomiej Zolnierkiewicz - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#define DRV_NAME "it8213" - -/** - * it8213_set_pio_mode - set host controller for PIO mode - * @hwif: port - * @drive: drive - * - * Set the interface PIO mode. - */ - -static void it8213_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - int is_slave = drive->dn & 1; - int master_port = 0x40; - int slave_port = 0x44; - unsigned long flags; - u16 master_data; - u8 slave_data; - static DEFINE_SPINLOCK(tune_lock); - int control = 0; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - static const u8 timings[][2] = { - { 0, 0 }, - { 0, 0 }, - { 1, 0 }, - { 2, 1 }, - { 2, 3 }, }; - - spin_lock_irqsave(&tune_lock, flags); - pci_read_config_word(dev, master_port, &master_data); - - if (pio > 1) - control |= 1; /* Programmable timing on */ - if (drive->media != ide_disk) - control |= 4; /* ATAPI */ - if (ide_pio_need_iordy(drive, pio)) - control |= 2; /* IORDY */ - if (is_slave) { - master_data |= 0x4000; - master_data &= ~0x0070; - if (pio > 1) - master_data = master_data | (control << 4); - pci_read_config_byte(dev, slave_port, &slave_data); - slave_data = slave_data & 0xf0; - slave_data = slave_data | (timings[pio][0] << 2) | timings[pio][1]; - } else { - master_data &= ~0x3307; - if (pio > 1) - master_data = master_data | control; - master_data = master_data | (timings[pio][0] << 12) | (timings[pio][1] << 8); - } - pci_write_config_word(dev, master_port, master_data); - if (is_slave) - pci_write_config_byte(dev, slave_port, slave_data); - spin_unlock_irqrestore(&tune_lock, flags); -} - -/** - * it8213_set_dma_mode - set host controller for DMA mode - * @hwif: port - * @drive: drive - * - * Tune the ITE chipset for the DMA mode. - */ - -static void it8213_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 maslave = 0x40; - int a_speed = 3 << (drive->dn * 4); - int u_flag = 1 << drive->dn; - int v_flag = 0x01 << drive->dn; - int w_flag = 0x10 << drive->dn; - int u_speed = 0; - u16 reg4042, reg4a; - u8 reg48, reg54, reg55; - const u8 speed = drive->dma_mode; - - pci_read_config_word(dev, maslave, ®4042); - pci_read_config_byte(dev, 0x48, ®48); - pci_read_config_word(dev, 0x4a, ®4a); - pci_read_config_byte(dev, 0x54, ®54); - pci_read_config_byte(dev, 0x55, ®55); - - if (speed >= XFER_UDMA_0) { - u8 udma = speed - XFER_UDMA_0; - - u_speed = min_t(u8, 2 - (udma & 1), udma) << (drive->dn * 4); - - if (!(reg48 & u_flag)) - pci_write_config_byte(dev, 0x48, reg48 | u_flag); - if (speed >= XFER_UDMA_5) - pci_write_config_byte(dev, 0x55, (u8) reg55|w_flag); - else - pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag); - - if ((reg4a & a_speed) != u_speed) - pci_write_config_word(dev, 0x4a, (reg4a & ~a_speed) | u_speed); - if (speed > XFER_UDMA_2) { - if (!(reg54 & v_flag)) - pci_write_config_byte(dev, 0x54, reg54 | v_flag); - } else - pci_write_config_byte(dev, 0x54, reg54 & ~v_flag); - } else { - const u8 mwdma_to_pio[] = { 0, 3, 4 }; - - if (reg48 & u_flag) - pci_write_config_byte(dev, 0x48, reg48 & ~u_flag); - if (reg4a & a_speed) - pci_write_config_word(dev, 0x4a, reg4a & ~a_speed); - if (reg54 & v_flag) - pci_write_config_byte(dev, 0x54, reg54 & ~v_flag); - if (reg55 & w_flag) - pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag); - - if (speed >= XFER_MW_DMA_0) - drive->pio_mode = - mwdma_to_pio[speed - XFER_MW_DMA_0] + XFER_PIO_0; - else - drive->pio_mode = XFER_PIO_2; /* for SWDMA2 */ - - it8213_set_pio_mode(hwif, drive); - } -} - -static u8 it8213_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 reg42h = 0; - - pci_read_config_byte(dev, 0x42, ®42h); - - return (reg42h & 0x02) ? ATA_CBL_PATA40 : ATA_CBL_PATA80; -} - -static const struct ide_port_ops it8213_port_ops = { - .set_pio_mode = it8213_set_pio_mode, - .set_dma_mode = it8213_set_dma_mode, - .cable_detect = it8213_cable_detect, -}; - -static const struct ide_port_info it8213_chipset = { - .name = DRV_NAME, - .enablebits = { {0x41, 0x80, 0x80} }, - .port_ops = &it8213_port_ops, - .host_flags = IDE_HFLAG_SINGLE, - .pio_mask = ATA_PIO4, - .swdma_mask = ATA_SWDMA2_ONLY, - .mwdma_mask = ATA_MWDMA12_ONLY, - .udma_mask = ATA_UDMA6, -}; - -/** - * it8213_init_one - pci layer discovery entry - * @dev: PCI device - * @id: ident table entry - * - * Called by the PCI code when it finds an ITE8213 controller. As - * this device follows the standard interfaces we can use the - * standard helper functions to do almost all the work for us. - */ - -static int it8213_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - return ide_pci_init_one(dev, &it8213_chipset, NULL); -} - -static const struct pci_device_id it8213_pci_tbl[] = { - { PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8213), 0 }, - { 0, }, -}; - -MODULE_DEVICE_TABLE(pci, it8213_pci_tbl); - -static struct pci_driver it8213_pci_driver = { - .name = "ITE8213_IDE", - .id_table = it8213_pci_tbl, - .probe = it8213_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init it8213_ide_init(void) -{ - return ide_pci_register_driver(&it8213_pci_driver); -} - -static void __exit it8213_ide_exit(void) -{ - pci_unregister_driver(&it8213_pci_driver); -} - -module_init(it8213_ide_init); -module_exit(it8213_ide_exit); - -MODULE_AUTHOR("Jack Lee, Alan Cox"); -MODULE_DESCRIPTION("PCI driver module for the ITE 8213"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/it821x.c b/drivers/ide/it821x.c deleted file mode 100644 index 36a64c8ea575..000000000000 --- a/drivers/ide/it821x.c +++ /dev/null @@ -1,715 +0,0 @@ -/* - * Copyright (C) 2004 Red Hat - * Copyright (C) 2007 Bartlomiej Zolnierkiewicz - * - * May be copied or modified under the terms of the GNU General Public License - * Based in part on the ITE vendor provided SCSI driver. - * - * Documentation: - * Datasheet is freely available, some other documents under NDA. - * - * The ITE8212 isn't exactly a standard IDE controller. It has two - * modes. In pass through mode then it is an IDE controller. In its smart - * mode its actually quite a capable hardware raid controller disguised - * as an IDE controller. Smart mode only understands DMA read/write and - * identify, none of the fancier commands apply. The IT8211 is identical - * in other respects but lacks the raid mode. - * - * Errata: - * o Rev 0x10 also requires master/slave hold the same DMA timings and - * cannot do ATAPI MWDMA. - * o The identify data for raid volumes lacks CHS info (technically ok) - * but also fails to set the LBA28 and other bits. We fix these in - * the IDE probe quirk code. - * o If you write LBA48 sized I/O's (ie > 256 sector) in smart mode - * raid then the controller firmware dies - * o Smart mode without RAID doesn't clear all the necessary identify - * bits to reduce the command set to the one used - * - * This has a few impacts on the driver - * - In pass through mode we do all the work you would expect - * - In smart mode the clocking set up is done by the controller generally - * but we must watch the other limits and filter. - * - There are a few extra vendor commands that actually talk to the - * controller but only work PIO with no IRQ. - * - * Vendor areas of the identify block in smart mode are used for the - * timing and policy set up. Each HDD in raid mode also has a serial - * block on the disk. The hardware extra commands are get/set chip status, - * rebuild, get rebuild status. - * - * In Linux the driver supports pass through mode as if the device was - * just another IDE controller. If the smart mode is running then - * volumes are managed by the controller firmware and each IDE "disk" - * is a raid volume. Even more cute - the controller can do automated - * hotplug and rebuild. - * - * The pass through controller itself is a little demented. It has a - * flaw that it has a single set of PIO/MWDMA timings per channel so - * non UDMA devices restrict each others performance. It also has a - * single clock source per channel so mixed UDMA100/133 performance - * isn't perfect and we have to pick a clock. Thankfully none of this - * matters in smart mode. ATAPI DMA is not currently supported. - * - * It seems the smart mode is a win for RAID1/RAID10 but otherwise not. - * - * TODO - * - ATAPI UDMA is ok but not MWDMA it seems - * - RAID configuration ioctls - * - Move to libata once it grows up - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/slab.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#define DRV_NAME "it821x" - -#define QUIRK_VORTEX86 1 - -struct it821x_dev -{ - unsigned int smart:1, /* Are we in smart raid mode */ - timing10:1; /* Rev 0x10 */ - u8 clock_mode; /* 0, ATA_50 or ATA_66 */ - u8 want[2][2]; /* Mode/Pri log for master slave */ - /* We need these for switching the clock when DMA goes on/off - The high byte is the 66Mhz timing */ - u16 pio[2]; /* Cached PIO values */ - u16 mwdma[2]; /* Cached MWDMA values */ - u16 udma[2]; /* Cached UDMA values (per drive) */ - u16 quirks; -}; - -#define ATA_66 0 -#define ATA_50 1 -#define ATA_ANY 2 - -#define UDMA_OFF 0 -#define MWDMA_OFF 0 - -/* - * We allow users to force the card into non raid mode without - * flashing the alternative BIOS. This is also necessary right now - * for embedded platforms that cannot run a PC BIOS but are using this - * device. - */ - -static int it8212_noraid; - -/** - * it821x_program - program the PIO/MWDMA registers - * @drive: drive to tune - * @timing: timing info - * - * Program the PIO/MWDMA timing for this channel according to the - * current clock. - */ - -static void it821x_program(ide_drive_t *drive, u16 timing) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct it821x_dev *itdev = ide_get_hwifdata(hwif); - int channel = hwif->channel; - u8 conf; - - /* Program PIO/MWDMA timing bits */ - if(itdev->clock_mode == ATA_66) - conf = timing >> 8; - else - conf = timing & 0xFF; - - pci_write_config_byte(dev, 0x54 + 4 * channel, conf); -} - -/** - * it821x_program_udma - program the UDMA registers - * @drive: drive to tune - * @timing: timing info - * - * Program the UDMA timing for this drive according to the - * current clock. - */ - -static void it821x_program_udma(ide_drive_t *drive, u16 timing) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct it821x_dev *itdev = ide_get_hwifdata(hwif); - int channel = hwif->channel; - u8 unit = drive->dn & 1, conf; - - /* Program UDMA timing bits */ - if(itdev->clock_mode == ATA_66) - conf = timing >> 8; - else - conf = timing & 0xFF; - - if (itdev->timing10 == 0) - pci_write_config_byte(dev, 0x56 + 4 * channel + unit, conf); - else { - pci_write_config_byte(dev, 0x56 + 4 * channel, conf); - pci_write_config_byte(dev, 0x56 + 4 * channel + 1, conf); - } -} - -/** - * it821x_clock_strategy - * @drive: drive to set up - * - * Select between the 50 and 66Mhz base clocks to get the best - * results for this interface. - */ - -static void it821x_clock_strategy(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct it821x_dev *itdev = ide_get_hwifdata(hwif); - ide_drive_t *pair = ide_get_pair_dev(drive); - int clock, altclock, sel = 0; - u8 unit = drive->dn & 1, v; - - if(itdev->want[0][0] > itdev->want[1][0]) { - clock = itdev->want[0][1]; - altclock = itdev->want[1][1]; - } else { - clock = itdev->want[1][1]; - altclock = itdev->want[0][1]; - } - - /* - * if both clocks can be used for the mode with the higher priority - * use the clock needed by the mode with the lower priority - */ - if (clock == ATA_ANY) - clock = altclock; - - /* Nobody cares - keep the same clock */ - if(clock == ATA_ANY) - return; - /* No change */ - if(clock == itdev->clock_mode) - return; - - /* Load this into the controller ? */ - if(clock == ATA_66) - itdev->clock_mode = ATA_66; - else { - itdev->clock_mode = ATA_50; - sel = 1; - } - - pci_read_config_byte(dev, 0x50, &v); - v &= ~(1 << (1 + hwif->channel)); - v |= sel << (1 + hwif->channel); - pci_write_config_byte(dev, 0x50, v); - - /* - * Reprogram the UDMA/PIO of the pair drive for the switch - * MWDMA will be dealt with by the dma switcher - */ - if(pair && itdev->udma[1-unit] != UDMA_OFF) { - it821x_program_udma(pair, itdev->udma[1-unit]); - it821x_program(pair, itdev->pio[1-unit]); - } - /* - * Reprogram the UDMA/PIO of our drive for the switch. - * MWDMA will be dealt with by the dma switcher - */ - if(itdev->udma[unit] != UDMA_OFF) { - it821x_program_udma(drive, itdev->udma[unit]); - it821x_program(drive, itdev->pio[unit]); - } -} - -/** - * it821x_set_pio_mode - set host controller for PIO mode - * @hwif: port - * @drive: drive - * - * Tune the host to the desired PIO mode taking into the consideration - * the maximum PIO mode supported by the other device on the cable. - */ - -static void it821x_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct it821x_dev *itdev = ide_get_hwifdata(hwif); - ide_drive_t *pair = ide_get_pair_dev(drive); - const u8 pio = drive->pio_mode - XFER_PIO_0; - u8 unit = drive->dn & 1, set_pio = pio; - - /* Spec says 89 ref driver uses 88 */ - static u16 pio_timings[]= { 0xAA88, 0xA382, 0xA181, 0x3332, 0x3121 }; - static u8 pio_want[] = { ATA_66, ATA_66, ATA_66, ATA_66, ATA_ANY }; - - /* - * Compute the best PIO mode we can for a given device. We must - * pick a speed that does not cause problems with the other device - * on the cable. - */ - if (pair) { - u8 pair_pio = pair->pio_mode - XFER_PIO_0; - /* trim PIO to the slowest of the master/slave */ - if (pair_pio < set_pio) - set_pio = pair_pio; - } - - /* We prefer 66Mhz clock for PIO 0-3, don't care for PIO4 */ - itdev->want[unit][1] = pio_want[set_pio]; - itdev->want[unit][0] = 1; /* PIO is lowest priority */ - itdev->pio[unit] = pio_timings[set_pio]; - it821x_clock_strategy(drive); - it821x_program(drive, itdev->pio[unit]); -} - -/** - * it821x_tune_mwdma - tune a channel for MWDMA - * @drive: drive to set up - * @mode_wanted: the target operating mode - * - * Load the timing settings for this device mode into the - * controller when doing MWDMA in pass through mode. The caller - * must manage the whole lack of per device MWDMA/PIO timings and - * the shared MWDMA/PIO timing register. - */ - -static void it821x_tune_mwdma(ide_drive_t *drive, u8 mode_wanted) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct it821x_dev *itdev = (void *)ide_get_hwifdata(hwif); - u8 unit = drive->dn & 1, channel = hwif->channel, conf; - - static u16 dma[] = { 0x8866, 0x3222, 0x3121 }; - static u8 mwdma_want[] = { ATA_ANY, ATA_66, ATA_ANY }; - - itdev->want[unit][1] = mwdma_want[mode_wanted]; - itdev->want[unit][0] = 2; /* MWDMA is low priority */ - itdev->mwdma[unit] = dma[mode_wanted]; - itdev->udma[unit] = UDMA_OFF; - - /* UDMA bits off - Revision 0x10 do them in pairs */ - pci_read_config_byte(dev, 0x50, &conf); - if (itdev->timing10) - conf |= channel ? 0x60: 0x18; - else - conf |= 1 << (3 + 2 * channel + unit); - pci_write_config_byte(dev, 0x50, conf); - - it821x_clock_strategy(drive); - /* FIXME: do we need to program this ? */ - /* it821x_program(drive, itdev->mwdma[unit]); */ -} - -/** - * it821x_tune_udma - tune a channel for UDMA - * @drive: drive to set up - * @mode_wanted: the target operating mode - * - * Load the timing settings for this device mode into the - * controller when doing UDMA modes in pass through. - */ - -static void it821x_tune_udma(ide_drive_t *drive, u8 mode_wanted) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct it821x_dev *itdev = ide_get_hwifdata(hwif); - u8 unit = drive->dn & 1, channel = hwif->channel, conf; - - static u16 udma[] = { 0x4433, 0x4231, 0x3121, 0x2121, 0x1111, 0x2211, 0x1111 }; - static u8 udma_want[] = { ATA_ANY, ATA_50, ATA_ANY, ATA_66, ATA_66, ATA_50, ATA_66 }; - - itdev->want[unit][1] = udma_want[mode_wanted]; - itdev->want[unit][0] = 3; /* UDMA is high priority */ - itdev->mwdma[unit] = MWDMA_OFF; - itdev->udma[unit] = udma[mode_wanted]; - if(mode_wanted >= 5) - itdev->udma[unit] |= 0x8080; /* UDMA 5/6 select on */ - - /* UDMA on. Again revision 0x10 must do the pair */ - pci_read_config_byte(dev, 0x50, &conf); - if (itdev->timing10) - conf &= channel ? 0x9F: 0xE7; - else - conf &= ~ (1 << (3 + 2 * channel + unit)); - pci_write_config_byte(dev, 0x50, conf); - - it821x_clock_strategy(drive); - it821x_program_udma(drive, itdev->udma[unit]); - -} - -/** - * it821x_dma_read - DMA hook - * @drive: drive for DMA - * - * The IT821x has a single timing register for MWDMA and for PIO - * operations. As we flip back and forth we have to reload the - * clock. In addition the rev 0x10 device only works if the same - * timing value is loaded into the master and slave UDMA clock - * so we must also reload that. - * - * FIXME: we could figure out in advance if we need to do reloads - */ - -static void it821x_dma_start(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct it821x_dev *itdev = ide_get_hwifdata(hwif); - u8 unit = drive->dn & 1; - - if(itdev->mwdma[unit] != MWDMA_OFF) - it821x_program(drive, itdev->mwdma[unit]); - else if(itdev->udma[unit] != UDMA_OFF && itdev->timing10) - it821x_program_udma(drive, itdev->udma[unit]); - ide_dma_start(drive); -} - -/** - * it821x_dma_write - DMA hook - * @drive: drive for DMA stop - * - * The IT821x has a single timing register for MWDMA and for PIO - * operations. As we flip back and forth we have to reload the - * clock. - */ - -static int it821x_dma_end(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct it821x_dev *itdev = ide_get_hwifdata(hwif); - int ret = ide_dma_end(drive); - u8 unit = drive->dn & 1; - - if(itdev->mwdma[unit] != MWDMA_OFF) - it821x_program(drive, itdev->pio[unit]); - return ret; -} - -/** - * it821x_set_dma_mode - set host controller for DMA mode - * @hwif: port - * @drive: drive - * - * Tune the ITE chipset for the desired DMA mode. - */ - -static void it821x_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - const u8 speed = drive->dma_mode; - - /* - * MWDMA tuning is really hard because our MWDMA and PIO - * timings are kept in the same place. We can switch in the - * host dma on/off callbacks. - */ - if (speed >= XFER_UDMA_0 && speed <= XFER_UDMA_6) - it821x_tune_udma(drive, speed - XFER_UDMA_0); - else if (speed >= XFER_MW_DMA_0 && speed <= XFER_MW_DMA_2) - it821x_tune_mwdma(drive, speed - XFER_MW_DMA_0); -} - -/** - * it821x_cable_detect - cable detection - * @hwif: interface to check - * - * Check for the presence of an ATA66 capable cable on the - * interface. Problematic as it seems some cards don't have - * the needed logic onboard. - */ - -static u8 it821x_cable_detect(ide_hwif_t *hwif) -{ - /* The reference driver also only does disk side */ - return ATA_CBL_PATA80; -} - -/** - * it821x_quirkproc - post init callback - * @drive: drive - * - * This callback is run after the drive has been probed but - * before anything gets attached. It allows drivers to do any - * final tuning that is needed, or fixups to work around bugs. - */ - -static void it821x_quirkproc(ide_drive_t *drive) -{ - struct it821x_dev *itdev = ide_get_hwifdata(drive->hwif); - u16 *id = drive->id; - - if (!itdev->smart) { - /* - * If we are in pass through mode then not much - * needs to be done, but we do bother to clear the - * IRQ mask as we may well be in PIO (eg rev 0x10) - * for now and we know unmasking is safe on this chipset. - */ - drive->dev_flags |= IDE_DFLAG_UNMASK; - } else { - /* - * Perform fixups on smart mode. We need to "lose" some - * capabilities the firmware lacks but does not filter, and - * also patch up some capability bits that it forgets to set - * in RAID mode. - */ - - /* Check for RAID v native */ - if (strstr((char *)&id[ATA_ID_PROD], - "Integrated Technology Express")) { - /* In raid mode the ident block is slightly buggy - We need to set the bits so that the IDE layer knows - LBA28. LBA48 and DMA ar valid */ - id[ATA_ID_CAPABILITY] |= (3 << 8); /* LBA28, DMA */ - id[ATA_ID_COMMAND_SET_2] |= 0x0400; /* LBA48 valid */ - id[ATA_ID_CFS_ENABLE_2] |= 0x0400; /* LBA48 on */ - /* Reporting logic */ - printk(KERN_INFO "%s: IT8212 %sRAID %d volume", - drive->name, id[147] ? "Bootable " : "", - id[ATA_ID_CSFO]); - if (id[ATA_ID_CSFO] != 1) - printk(KERN_CONT "(%dK stripe)", id[146]); - printk(KERN_CONT ".\n"); - } else { - /* Non RAID volume. Fixups to stop the core code - doing unsupported things */ - id[ATA_ID_FIELD_VALID] &= 3; - id[ATA_ID_QUEUE_DEPTH] = 0; - id[ATA_ID_COMMAND_SET_1] = 0; - id[ATA_ID_COMMAND_SET_2] &= 0xC400; - id[ATA_ID_CFSSE] &= 0xC000; - id[ATA_ID_CFS_ENABLE_1] = 0; - id[ATA_ID_CFS_ENABLE_2] &= 0xC400; - id[ATA_ID_CSF_DEFAULT] &= 0xC000; - id[127] = 0; - id[ATA_ID_DLF] = 0; - id[ATA_ID_CSFO] = 0; - id[ATA_ID_CFA_POWER] = 0; - printk(KERN_INFO "%s: Performing identify fixups.\n", - drive->name); - } - - /* - * Set MWDMA0 mode as enabled/support - just to tell - * IDE core that DMA is supported (it821x hardware - * takes care of DMA mode programming). - */ - if (ata_id_has_dma(id)) { - id[ATA_ID_MWDMA_MODES] |= 0x0101; - drive->current_speed = XFER_MW_DMA_0; - } - } - -} - -static const struct ide_dma_ops it821x_pass_through_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = it821x_dma_start, - .dma_end = it821x_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = ide_dma_sff_read_status, -}; - -/** - * init_hwif_it821x - set up hwif structs - * @hwif: interface to set up - * - * We do the basic set up of the interface structure. The IT8212 - * requires several custom handlers so we override the default - * ide DMA handlers appropriately - */ - -static void init_hwif_it821x(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct ide_host *host = pci_get_drvdata(dev); - struct it821x_dev *itdevs = host->host_priv; - struct it821x_dev *idev = itdevs + hwif->channel; - u8 conf; - - ide_set_hwifdata(hwif, idev); - - pci_read_config_byte(dev, 0x50, &conf); - if (conf & 1) { - idev->smart = 1; - hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA; - /* Long I/O's although allowed in LBA48 space cause the - onboard firmware to enter the twighlight zone */ - hwif->rqsize = 256; - } - - /* Pull the current clocks from 0x50 also */ - if (conf & (1 << (1 + hwif->channel))) - idev->clock_mode = ATA_50; - else - idev->clock_mode = ATA_66; - - idev->want[0][1] = ATA_ANY; - idev->want[1][1] = ATA_ANY; - - /* - * Not in the docs but according to the reference driver - * this is necessary. - */ - - if (dev->revision == 0x10) { - idev->timing10 = 1; - hwif->host_flags |= IDE_HFLAG_NO_ATAPI_DMA; - if (idev->smart == 0) - printk(KERN_WARNING DRV_NAME " %s: revision 0x10, " - "workarounds activated\n", pci_name(dev)); - } - - if (idev->smart == 0) { - /* MWDMA/PIO clock switching for pass through mode */ - hwif->dma_ops = &it821x_pass_through_dma_ops; - } else - hwif->host_flags |= IDE_HFLAG_NO_SET_MODE; - - if (hwif->dma_base == 0) - return; - - hwif->ultra_mask = ATA_UDMA6; - hwif->mwdma_mask = ATA_MWDMA2; - - /* Vortex86SX quirk: prevent Ultra-DMA mode to fix BadCRC issue */ - if (idev->quirks & QUIRK_VORTEX86) { - if (dev->revision == 0x11) - hwif->ultra_mask = 0; - } -} - -static void it8212_disable_raid(struct pci_dev *dev) -{ - /* Reset local CPU, and set BIOS not ready */ - pci_write_config_byte(dev, 0x5E, 0x01); - - /* Set to bypass mode, and reset PCI bus */ - pci_write_config_byte(dev, 0x50, 0x00); - pci_write_config_word(dev, PCI_COMMAND, - PCI_COMMAND_PARITY | PCI_COMMAND_IO | - PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); - pci_write_config_word(dev, 0x40, 0xA0F3); - - pci_write_config_dword(dev,0x4C, 0x02040204); - pci_write_config_byte(dev, 0x42, 0x36); - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x20); -} - -static int init_chipset_it821x(struct pci_dev *dev) -{ - u8 conf; - static char *mode[2] = { "pass through", "smart" }; - - /* Force the card into bypass mode if so requested */ - if (it8212_noraid) { - printk(KERN_INFO DRV_NAME " %s: forcing bypass mode\n", - pci_name(dev)); - it8212_disable_raid(dev); - } - pci_read_config_byte(dev, 0x50, &conf); - printk(KERN_INFO DRV_NAME " %s: controller in %s mode\n", - pci_name(dev), mode[conf & 1]); - return 0; -} - -static const struct ide_port_ops it821x_port_ops = { - /* it821x_set_{pio,dma}_mode() are only used in pass-through mode */ - .set_pio_mode = it821x_set_pio_mode, - .set_dma_mode = it821x_set_dma_mode, - .quirkproc = it821x_quirkproc, - .cable_detect = it821x_cable_detect, -}; - -static const struct ide_port_info it821x_chipset = { - .name = DRV_NAME, - .init_chipset = init_chipset_it821x, - .init_hwif = init_hwif_it821x, - .port_ops = &it821x_port_ops, - .pio_mask = ATA_PIO4, -}; - -/** - * it821x_init_one - pci layer discovery entry - * @dev: PCI device - * @id: ident table entry - * - * Called by the PCI code when it finds an ITE821x controller. - * We then use the IDE PCI generic helper to do most of the work. - */ - -static int it821x_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct it821x_dev *itdevs; - int rc; - - itdevs = kcalloc(2, sizeof(*itdevs), GFP_KERNEL); - if (itdevs == NULL) { - printk(KERN_ERR DRV_NAME " %s: out of memory\n", pci_name(dev)); - return -ENOMEM; - } - - itdevs->quirks = id->driver_data; - - rc = ide_pci_init_one(dev, &it821x_chipset, itdevs); - if (rc) - kfree(itdevs); - - return rc; -} - -static void it821x_remove(struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - struct it821x_dev *itdevs = host->host_priv; - - ide_pci_remove(dev); - kfree(itdevs); -} - -static const struct pci_device_id it821x_pci_tbl[] = { - { PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8211), 0 }, - { PCI_VDEVICE(ITE, PCI_DEVICE_ID_ITE_8212), 0 }, - { PCI_VDEVICE(RDC, PCI_DEVICE_ID_RDC_D1010), QUIRK_VORTEX86 }, - { 0, }, -}; - -MODULE_DEVICE_TABLE(pci, it821x_pci_tbl); - -static struct pci_driver it821x_pci_driver = { - .name = "ITE821x IDE", - .id_table = it821x_pci_tbl, - .probe = it821x_init_one, - .remove = it821x_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init it821x_ide_init(void) -{ - return ide_pci_register_driver(&it821x_pci_driver); -} - -static void __exit it821x_ide_exit(void) -{ - pci_unregister_driver(&it821x_pci_driver); -} - -module_init(it821x_ide_init); -module_exit(it821x_ide_exit); - -module_param_named(noraid, it8212_noraid, int, S_IRUGO); -MODULE_PARM_DESC(noraid, "Force card into bypass mode"); - -MODULE_AUTHOR("Alan Cox"); -MODULE_DESCRIPTION("PCI driver module for the ITE 821x"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/jmicron.c b/drivers/ide/jmicron.c deleted file mode 100644 index ae6480dcbadf..000000000000 --- a/drivers/ide/jmicron.c +++ /dev/null @@ -1,176 +0,0 @@ - -/* - * Copyright (C) 2006 Red Hat - * - * May be copied or modified under the terms of the GNU General Public License - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#define DRV_NAME "jmicron" - -typedef enum { - PORT_PATA0 = 0, - PORT_PATA1 = 1, - PORT_SATA = 2, -} port_type; - -/** - * jmicron_cable_detect - cable detection - * @hwif: IDE port - * - * Returns the cable type. - */ - -static u8 jmicron_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *pdev = to_pci_dev(hwif->dev); - - u32 control; - u32 control5; - - int port = hwif->channel; - port_type port_map[2]; - - pci_read_config_dword(pdev, 0x40, &control); - - /* There are two basic mappings. One has the two SATA ports merged - as master/slave and the secondary as PATA, the other has only the - SATA port mapped */ - if (control & (1 << 23)) { - port_map[0] = PORT_SATA; - port_map[1] = PORT_PATA0; - } else { - port_map[0] = PORT_SATA; - port_map[1] = PORT_SATA; - } - - /* The 365/366 may have this bit set to map the second PATA port - as the internal primary channel */ - pci_read_config_dword(pdev, 0x80, &control5); - if (control5 & (1<<24)) - port_map[0] = PORT_PATA1; - - /* The two ports may then be logically swapped by the firmware */ - if (control & (1 << 22)) - port = port ^ 1; - - /* - * Now we know which physical port we are talking about we can - * actually do our cable checking etc. Thankfully we don't need - * to do the plumbing for other cases. - */ - switch (port_map[port]) { - case PORT_PATA0: - if (control & (1 << 3)) /* 40/80 pin primary */ - return ATA_CBL_PATA40; - return ATA_CBL_PATA80; - case PORT_PATA1: - if (control5 & (1 << 19)) /* 40/80 pin secondary */ - return ATA_CBL_PATA40; - return ATA_CBL_PATA80; - case PORT_SATA: - break; - } - /* Avoid bogus "control reaches end of non-void function" */ - return ATA_CBL_PATA80; -} - -static void jmicron_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ -} - -/** - * jmicron_set_dma_mode - set host controller for DMA mode - * @hwif: port - * @drive: drive - * - * As the JMicron snoops for timings we don't need to do anything here. - */ - -static void jmicron_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ -} - -static const struct ide_port_ops jmicron_port_ops = { - .set_pio_mode = jmicron_set_pio_mode, - .set_dma_mode = jmicron_set_dma_mode, - .cable_detect = jmicron_cable_detect, -}; - -static const struct ide_port_info jmicron_chipset = { - .name = DRV_NAME, - .enablebits = { { 0x40, 0x01, 0x01 }, { 0x40, 0x10, 0x10 } }, - .port_ops = &jmicron_port_ops, - .pio_mask = ATA_PIO5, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA6, -}; - -/** - * jmicron_init_one - pci layer discovery entry - * @dev: PCI device - * @id: ident table entry - * - * Called by the PCI code when it finds a Jmicron controller. - * We then use the IDE PCI generic helper to do most of the work. - */ - -static int jmicron_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - return ide_pci_init_one(dev, &jmicron_chipset, NULL); -} - -/* All JMB PATA controllers have and will continue to have the same - * interface. Matching vendor and device class is enough for all - * current and future controllers if the controller is programmed - * properly. - * - * If libata is configured, jmicron PCI quirk programs the controller - * into the correct mode. If libata isn't configured, match known - * device IDs too to maintain backward compatibility. - */ -static struct pci_device_id jmicron_pci_tbl[] = { -#if !defined(CONFIG_ATA) && !defined(CONFIG_ATA_MODULE) - { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB361) }, - { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB363) }, - { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB365) }, - { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB366) }, - { PCI_VDEVICE(JMICRON, PCI_DEVICE_ID_JMICRON_JMB368) }, -#endif - { PCI_VENDOR_ID_JMICRON, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, - PCI_CLASS_STORAGE_IDE << 8, 0xffff00, 0 }, - { 0, }, -}; - -MODULE_DEVICE_TABLE(pci, jmicron_pci_tbl); - -static struct pci_driver jmicron_pci_driver = { - .name = "JMicron IDE", - .id_table = jmicron_pci_tbl, - .probe = jmicron_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init jmicron_ide_init(void) -{ - return ide_pci_register_driver(&jmicron_pci_driver); -} - -static void __exit jmicron_ide_exit(void) -{ - pci_unregister_driver(&jmicron_pci_driver); -} - -module_init(jmicron_ide_init); -module_exit(jmicron_ide_exit); - -MODULE_AUTHOR("Alan Cox"); -MODULE_DESCRIPTION("PCI driver module for the JMicron in legacy modes"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/ns87415.c b/drivers/ide/ns87415.c deleted file mode 100644 index 11a672aba6ee..000000000000 --- a/drivers/ide/ns87415.c +++ /dev/null @@ -1,350 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1997-1998 Mark Lord <mlord@pobox.com> - * Copyright (C) 1998 Eddie C. Dost <ecd@skynet.be> - * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2004 Grant Grundler <grundler at parisc-linux.org> - * - * Inspired by an earlier effort from David S. Miller <davem@redhat.com> - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/pci.h> -#include <linux/delay.h> -#include <linux/ide.h> -#include <linux/init.h> - -#include <asm/io.h> - -#define DRV_NAME "ns87415" - -#ifdef CONFIG_SUPERIO -/* SUPERIO 87560 is a PoS chip that NatSem denies exists. - * Unfortunately, it's built-in on all Astro-based PA-RISC workstations - * which use the integrated NS87514 cell for CD-ROM support. - * i.e we have to support for CD-ROM installs. - * See drivers/parisc/superio.c for more gory details. - */ -#include <asm/superio.h> - -#define SUPERIO_IDE_MAX_RETRIES 25 - -/* Because of a defect in Super I/O, all reads of the PCI DMA status - * registers, IDE status register and the IDE select register need to be - * retried - */ -static u8 superio_ide_inb (unsigned long port) -{ - u8 tmp; - int retries = SUPERIO_IDE_MAX_RETRIES; - - /* printk(" [ reading port 0x%x with retry ] ", port); */ - - do { - tmp = inb(port); - if (tmp == 0) - udelay(50); - } while (tmp == 0 && retries-- > 0); - - return tmp; -} - -static u8 superio_read_status(ide_hwif_t *hwif) -{ - return superio_ide_inb(hwif->io_ports.status_addr); -} - -static u8 superio_dma_sff_read_status(ide_hwif_t *hwif) -{ - return superio_ide_inb(hwif->dma_base + ATA_DMA_STATUS); -} - -static void superio_tf_read(ide_drive_t *drive, struct ide_taskfile *tf, - u8 valid) -{ - struct ide_io_ports *io_ports = &drive->hwif->io_ports; - - if (valid & IDE_VALID_ERROR) - tf->error = inb(io_ports->feature_addr); - if (valid & IDE_VALID_NSECT) - tf->nsect = inb(io_ports->nsect_addr); - if (valid & IDE_VALID_LBAL) - tf->lbal = inb(io_ports->lbal_addr); - if (valid & IDE_VALID_LBAM) - tf->lbam = inb(io_ports->lbam_addr); - if (valid & IDE_VALID_LBAH) - tf->lbah = inb(io_ports->lbah_addr); - if (valid & IDE_VALID_DEVICE) - tf->device = superio_ide_inb(io_ports->device_addr); -} - -static void ns87415_dev_select(ide_drive_t *drive); - -static const struct ide_tp_ops superio_tp_ops = { - .exec_command = ide_exec_command, - .read_status = superio_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = ide_write_devctl, - - .dev_select = ns87415_dev_select, - .tf_load = ide_tf_load, - .tf_read = superio_tf_read, - - .input_data = ide_input_data, - .output_data = ide_output_data, -}; - -static void superio_init_iops(struct hwif_s *hwif) -{ - struct pci_dev *pdev = to_pci_dev(hwif->dev); - u32 dma_stat; - u8 port = hwif->channel, tmp; - - dma_stat = (pci_resource_start(pdev, 4) & ~3) + (!port ? 2 : 0xa); - - /* Clear error/interrupt, enable dma */ - tmp = superio_ide_inb(dma_stat); - outb(tmp | 0x66, dma_stat); -} -#else -#define superio_dma_sff_read_status ide_dma_sff_read_status -#endif - -static unsigned int ns87415_count = 0, ns87415_control[MAX_HWIFS] = { 0 }; - -/* - * This routine either enables/disables (according to IDE_DFLAG_PRESENT) - * the IRQ associated with the port, - * and selects either PIO or DMA handshaking for the next I/O operation. - */ -static void ns87415_prepare_drive (ide_drive_t *drive, unsigned int use_dma) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned int bit, other, new, *old = (unsigned int *) hwif->select_data; - unsigned long flags; - - local_irq_save(flags); - new = *old; - - /* Adjust IRQ enable bit */ - bit = 1 << (8 + hwif->channel); - - if (drive->dev_flags & IDE_DFLAG_PRESENT) - new &= ~bit; - else - new |= bit; - - /* Select PIO or DMA, DMA may only be selected for one drive/channel. */ - bit = 1 << (20 + (drive->dn & 1) + (hwif->channel << 1)); - other = 1 << (20 + (1 - (drive->dn & 1)) + (hwif->channel << 1)); - new = use_dma ? ((new & ~other) | bit) : (new & ~bit); - - if (new != *old) { - unsigned char stat; - - /* - * Don't change DMA engine settings while Write Buffers - * are busy. - */ - (void) pci_read_config_byte(dev, 0x43, &stat); - while (stat & 0x03) { - udelay(1); - (void) pci_read_config_byte(dev, 0x43, &stat); - } - - *old = new; - (void) pci_write_config_dword(dev, 0x40, new); - - /* - * And let things settle... - */ - udelay(10); - } - - local_irq_restore(flags); -} - -static void ns87415_dev_select(ide_drive_t *drive) -{ - ns87415_prepare_drive(drive, - !!(drive->dev_flags & IDE_DFLAG_USING_DMA)); - - outb(drive->select | ATA_DEVICE_OBS, drive->hwif->io_ports.device_addr); -} - -static void ns87415_dma_start(ide_drive_t *drive) -{ - ns87415_prepare_drive(drive, 1); - ide_dma_start(drive); -} - -static int ns87415_dma_end(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 dma_stat = 0, dma_cmd = 0; - - dma_stat = hwif->dma_ops->dma_sff_read_status(hwif); - /* get DMA command mode */ - dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); - /* stop DMA */ - outb(dma_cmd & ~1, hwif->dma_base + ATA_DMA_CMD); - /* from ERRATA: clear the INTR & ERROR bits */ - dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); - outb(dma_cmd | 6, hwif->dma_base + ATA_DMA_CMD); - - ns87415_prepare_drive(drive, 0); - - /* verify good DMA status */ - return (dma_stat & 7) != 4; -} - -static void init_hwif_ns87415 (ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned int ctrl, using_inta; - u8 progif; -#ifdef __sparc_v9__ - int timeout; - u8 stat; -#endif - - /* - * We cannot probe for IRQ: both ports share common IRQ on INTA. - * Also, leave IRQ masked during drive probing, to prevent infinite - * interrupts from a potentially floating INTA.. - * - * IRQs get unmasked in dev_select() when drive is first used. - */ - (void) pci_read_config_dword(dev, 0x40, &ctrl); - (void) pci_read_config_byte(dev, 0x09, &progif); - /* is irq in "native" mode? */ - using_inta = progif & (1 << (hwif->channel << 1)); - if (!using_inta) - using_inta = ctrl & (1 << (4 + hwif->channel)); - if (hwif->mate) { - hwif->select_data = hwif->mate->select_data; - } else { - hwif->select_data = (unsigned long) - &ns87415_control[ns87415_count++]; - ctrl |= (1 << 8) | (1 << 9); /* mask both IRQs */ - if (using_inta) - ctrl &= ~(1 << 6); /* unmask INTA */ - *((unsigned int *)hwif->select_data) = ctrl; - (void) pci_write_config_dword(dev, 0x40, ctrl); - - /* - * Set prefetch size to 512 bytes for both ports, - * but don't turn on/off prefetching here. - */ - pci_write_config_byte(dev, 0x55, 0xee); - -#ifdef __sparc_v9__ - /* - * XXX: Reset the device, if we don't it will not respond to - * dev_select() properly during first ide_probe_port(). - */ - timeout = 10000; - outb(12, hwif->io_ports.ctl_addr); - udelay(10); - outb(8, hwif->io_ports.ctl_addr); - do { - udelay(50); - stat = hwif->tp_ops->read_status(hwif); - if (stat == 0xff) - break; - } while ((stat & ATA_BUSY) && --timeout); -#endif - } - - if (!using_inta) - hwif->irq = pci_get_legacy_ide_irq(dev, hwif->channel); - - if (!hwif->dma_base) - return; - - outb(0x60, hwif->dma_base + ATA_DMA_STATUS); -} - -static const struct ide_tp_ops ns87415_tp_ops = { - .exec_command = ide_exec_command, - .read_status = ide_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = ide_write_devctl, - - .dev_select = ns87415_dev_select, - .tf_load = ide_tf_load, - .tf_read = ide_tf_read, - - .input_data = ide_input_data, - .output_data = ide_output_data, -}; - -static const struct ide_dma_ops ns87415_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = ns87415_dma_start, - .dma_end = ns87415_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = superio_dma_sff_read_status, -}; - -static const struct ide_port_info ns87415_chipset = { - .name = DRV_NAME, - .init_hwif = init_hwif_ns87415, - .tp_ops = &ns87415_tp_ops, - .dma_ops = &ns87415_dma_ops, - .host_flags = IDE_HFLAG_TRUST_BIOS_FOR_DMA | - IDE_HFLAG_NO_ATAPI_DMA, -}; - -static int ns87415_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct ide_port_info d = ns87415_chipset; - -#ifdef CONFIG_SUPERIO - if (PCI_SLOT(dev->devfn) == 0xE) { - /* Built-in - assume it's under superio. */ - d.init_iops = superio_init_iops; - d.tp_ops = &superio_tp_ops; - } -#endif - return ide_pci_init_one(dev, &d, NULL); -} - -static const struct pci_device_id ns87415_pci_tbl[] = { - { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_87415), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, ns87415_pci_tbl); - -static struct pci_driver ns87415_pci_driver = { - .name = "NS87415_IDE", - .id_table = ns87415_pci_tbl, - .probe = ns87415_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init ns87415_ide_init(void) -{ - return ide_pci_register_driver(&ns87415_pci_driver); -} - -static void __exit ns87415_ide_exit(void) -{ - pci_unregister_driver(&ns87415_pci_driver); -} - -module_init(ns87415_ide_init); -module_exit(ns87415_ide_exit); - -MODULE_AUTHOR("Mark Lord, Eddie Dost, Andre Hedrick"); -MODULE_DESCRIPTION("PCI driver module for NS87415 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/opti621.c b/drivers/ide/opti621.c deleted file mode 100644 index c374f82333c6..000000000000 --- a/drivers/ide/opti621.c +++ /dev/null @@ -1,179 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1996-1998 Linus Torvalds & authors (see below) - */ - -/* - * Authors: - * Jaromir Koutek <miri@punknet.cz>, - * Jan Harkes <jaharkes@cwi.nl>, - * Mark Lord <mlord@pobox.com> - * Some parts of code are from ali14xx.c and from rz1000.c. - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/ide.h> - -#include <asm/io.h> - -#define DRV_NAME "opti621" - -#define READ_REG 0 /* index of Read cycle timing register */ -#define WRITE_REG 1 /* index of Write cycle timing register */ -#define CNTRL_REG 3 /* index of Control register */ -#define STRAP_REG 5 /* index of Strap register */ -#define MISC_REG 6 /* index of Miscellaneous register */ - -static int reg_base; - -static DEFINE_SPINLOCK(opti621_lock); - -/* Write value to register reg, base of register - * is at reg_base (0x1f0 primary, 0x170 secondary, - * if not changed by PCI configuration). - * This is from setupvic.exe program. - */ -static void write_reg(u8 value, int reg) -{ - inw(reg_base + 1); - inw(reg_base + 1); - outb(3, reg_base + 2); - outb(value, reg_base + reg); - outb(0x83, reg_base + 2); -} - -/* Read value from register reg, base of register - * is at reg_base (0x1f0 primary, 0x170 secondary, - * if not changed by PCI configuration). - * This is from setupvic.exe program. - */ -static u8 read_reg(int reg) -{ - u8 ret = 0; - - inw(reg_base + 1); - inw(reg_base + 1); - outb(3, reg_base + 2); - ret = inb(reg_base + reg); - outb(0x83, reg_base + 2); - - return ret; -} - -static void opti621_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - ide_drive_t *pair = ide_get_pair_dev(drive); - unsigned long flags; - unsigned long mode = drive->pio_mode, pair_mode; - const u8 pio = mode - XFER_PIO_0; - u8 tim, misc, addr_pio = pio, clk; - - /* DRDY is default 2 (by OPTi Databook) */ - static const u8 addr_timings[2][5] = { - { 0x20, 0x10, 0x00, 0x00, 0x00 }, /* 33 MHz */ - { 0x10, 0x10, 0x00, 0x00, 0x00 }, /* 25 MHz */ - }; - static const u8 data_rec_timings[2][5] = { - { 0x5b, 0x45, 0x32, 0x21, 0x20 }, /* 33 MHz */ - { 0x48, 0x34, 0x21, 0x10, 0x10 } /* 25 MHz */ - }; - - ide_set_drivedata(drive, (void *)mode); - - if (pair) { - pair_mode = (unsigned long)ide_get_drivedata(pair); - if (pair_mode && pair_mode < mode) - addr_pio = pair_mode - XFER_PIO_0; - } - - spin_lock_irqsave(&opti621_lock, flags); - - reg_base = hwif->io_ports.data_addr; - - /* allow Register-B */ - outb(0xc0, reg_base + CNTRL_REG); - /* hmm, setupvic.exe does this ;-) */ - outb(0xff, reg_base + 5); - /* if reads 0xff, adapter not exist? */ - (void)inb(reg_base + CNTRL_REG); - /* if reads 0xc0, no interface exist? */ - read_reg(CNTRL_REG); - - /* check CLK speed */ - clk = read_reg(STRAP_REG) & 1; - - printk(KERN_INFO "%s: CLK = %d MHz\n", hwif->name, clk ? 25 : 33); - - tim = data_rec_timings[clk][pio]; - misc = addr_timings[clk][addr_pio]; - - /* select Index-0/1 for Register-A/B */ - write_reg(drive->dn & 1, MISC_REG); - /* set read cycle timings */ - write_reg(tim, READ_REG); - /* set write cycle timings */ - write_reg(tim, WRITE_REG); - - /* use Register-A for drive 0 */ - /* use Register-B for drive 1 */ - write_reg(0x85, CNTRL_REG); - - /* set address setup, DRDY timings, */ - /* and read prefetch for both drives */ - write_reg(misc, MISC_REG); - - spin_unlock_irqrestore(&opti621_lock, flags); -} - -static const struct ide_port_ops opti621_port_ops = { - .set_pio_mode = opti621_set_pio_mode, -}; - -static const struct ide_port_info opti621_chipset = { - .name = DRV_NAME, - .enablebits = { {0x45, 0x80, 0x00}, {0x40, 0x08, 0x00} }, - .port_ops = &opti621_port_ops, - .host_flags = IDE_HFLAG_NO_DMA, - .pio_mask = ATA_PIO4, -}; - -static int opti621_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - return ide_pci_init_one(dev, &opti621_chipset, NULL); -} - -static const struct pci_device_id opti621_pci_tbl[] = { - { PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C621), 0 }, - { PCI_VDEVICE(OPTI, PCI_DEVICE_ID_OPTI_82C825), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, opti621_pci_tbl); - -static struct pci_driver opti621_pci_driver = { - .name = "Opti621_IDE", - .id_table = opti621_pci_tbl, - .probe = opti621_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init opti621_ide_init(void) -{ - return ide_pci_register_driver(&opti621_pci_driver); -} - -static void __exit opti621_ide_exit(void) -{ - pci_unregister_driver(&opti621_pci_driver); -} - -module_init(opti621_ide_init); -module_exit(opti621_ide_exit); - -MODULE_AUTHOR("Jaromir Koutek, Jan Harkes, Mark Lord"); -MODULE_DESCRIPTION("PCI driver module for Opti621 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/palm_bk3710.c b/drivers/ide/palm_bk3710.c deleted file mode 100644 index d1fe4c13e35c..000000000000 --- a/drivers/ide/palm_bk3710.c +++ /dev/null @@ -1,387 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Palmchip bk3710 IDE controller - * - * Copyright (C) 2006 Texas Instruments. - * Copyright (C) 2007 MontaVista Software, Inc., <source@mvista.com> - * - * ---------------------------------------------------------------------------- - * - * ---------------------------------------------------------------------------- - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/ioport.h> -#include <linux/ide.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/clk.h> -#include <linux/platform_device.h> - -/* Offset of the primary interface registers */ -#define IDE_PALM_ATA_PRI_REG_OFFSET 0x1F0 - -/* Primary Control Offset */ -#define IDE_PALM_ATA_PRI_CTL_OFFSET 0x3F6 - -#define BK3710_BMICP 0x00 -#define BK3710_BMISP 0x02 -#define BK3710_BMIDTP 0x04 -#define BK3710_IDETIMP 0x40 -#define BK3710_IDESTATUS 0x47 -#define BK3710_UDMACTL 0x48 -#define BK3710_MISCCTL 0x50 -#define BK3710_REGSTB 0x54 -#define BK3710_REGRCVR 0x58 -#define BK3710_DATSTB 0x5C -#define BK3710_DATRCVR 0x60 -#define BK3710_DMASTB 0x64 -#define BK3710_DMARCVR 0x68 -#define BK3710_UDMASTB 0x6C -#define BK3710_UDMATRP 0x70 -#define BK3710_UDMAENV 0x74 -#define BK3710_IORDYTMP 0x78 - -static unsigned ideclk_period; /* in nanoseconds */ - -struct palm_bk3710_udmatiming { - unsigned int rptime; /* tRP -- Ready to pause time (nsec) */ - unsigned int cycletime; /* tCYCTYP2/2 -- avg Cycle Time (nsec) */ - /* tENV is always a minimum of 20 nsec */ -}; - -static const struct palm_bk3710_udmatiming palm_bk3710_udmatimings[6] = { - { 160, 240 / 2 }, /* UDMA Mode 0 */ - { 125, 160 / 2 }, /* UDMA Mode 1 */ - { 100, 120 / 2 }, /* UDMA Mode 2 */ - { 100, 90 / 2 }, /* UDMA Mode 3 */ - { 100, 60 / 2 }, /* UDMA Mode 4 */ - { 85, 40 / 2 }, /* UDMA Mode 5 */ -}; - -static void palm_bk3710_setudmamode(void __iomem *base, unsigned int dev, - unsigned int mode) -{ - u8 tenv, trp, t0; - u32 val32; - u16 val16; - - /* DMA Data Setup */ - t0 = DIV_ROUND_UP(palm_bk3710_udmatimings[mode].cycletime, - ideclk_period) - 1; - tenv = DIV_ROUND_UP(20, ideclk_period) - 1; - trp = DIV_ROUND_UP(palm_bk3710_udmatimings[mode].rptime, - ideclk_period) - 1; - - /* udmastb Ultra DMA Access Strobe Width */ - val32 = readl(base + BK3710_UDMASTB) & (0xFF << (dev ? 0 : 8)); - val32 |= (t0 << (dev ? 8 : 0)); - writel(val32, base + BK3710_UDMASTB); - - /* udmatrp Ultra DMA Ready to Pause Time */ - val32 = readl(base + BK3710_UDMATRP) & (0xFF << (dev ? 0 : 8)); - val32 |= (trp << (dev ? 8 : 0)); - writel(val32, base + BK3710_UDMATRP); - - /* udmaenv Ultra DMA envelop Time */ - val32 = readl(base + BK3710_UDMAENV) & (0xFF << (dev ? 0 : 8)); - val32 |= (tenv << (dev ? 8 : 0)); - writel(val32, base + BK3710_UDMAENV); - - /* Enable UDMA for Device */ - val16 = readw(base + BK3710_UDMACTL) | (1 << dev); - writew(val16, base + BK3710_UDMACTL); -} - -static void palm_bk3710_setdmamode(void __iomem *base, unsigned int dev, - unsigned short min_cycle, - unsigned int mode) -{ - u8 td, tkw, t0; - u32 val32; - u16 val16; - struct ide_timing *t; - int cycletime; - - t = ide_timing_find_mode(mode); - cycletime = max_t(int, t->cycle, min_cycle); - - /* DMA Data Setup */ - t0 = DIV_ROUND_UP(cycletime, ideclk_period); - td = DIV_ROUND_UP(t->active, ideclk_period); - tkw = t0 - td - 1; - td -= 1; - - val32 = readl(base + BK3710_DMASTB) & (0xFF << (dev ? 0 : 8)); - val32 |= (td << (dev ? 8 : 0)); - writel(val32, base + BK3710_DMASTB); - - val32 = readl(base + BK3710_DMARCVR) & (0xFF << (dev ? 0 : 8)); - val32 |= (tkw << (dev ? 8 : 0)); - writel(val32, base + BK3710_DMARCVR); - - /* Disable UDMA for Device */ - val16 = readw(base + BK3710_UDMACTL) & ~(1 << dev); - writew(val16, base + BK3710_UDMACTL); -} - -static void palm_bk3710_setpiomode(void __iomem *base, ide_drive_t *mate, - unsigned int dev, unsigned int cycletime, - unsigned int mode) -{ - u8 t2, t2i, t0; - u32 val32; - struct ide_timing *t; - - t = ide_timing_find_mode(XFER_PIO_0 + mode); - - /* PIO Data Setup */ - t0 = DIV_ROUND_UP(cycletime, ideclk_period); - t2 = DIV_ROUND_UP(t->active, ideclk_period); - - t2i = t0 - t2 - 1; - t2 -= 1; - - val32 = readl(base + BK3710_DATSTB) & (0xFF << (dev ? 0 : 8)); - val32 |= (t2 << (dev ? 8 : 0)); - writel(val32, base + BK3710_DATSTB); - - val32 = readl(base + BK3710_DATRCVR) & (0xFF << (dev ? 0 : 8)); - val32 |= (t2i << (dev ? 8 : 0)); - writel(val32, base + BK3710_DATRCVR); - - if (mate) { - u8 mode2 = mate->pio_mode - XFER_PIO_0; - - if (mode2 < mode) - mode = mode2; - } - - /* TASKFILE Setup */ - t0 = DIV_ROUND_UP(t->cyc8b, ideclk_period); - t2 = DIV_ROUND_UP(t->act8b, ideclk_period); - - t2i = t0 - t2 - 1; - t2 -= 1; - - val32 = readl(base + BK3710_REGSTB) & (0xFF << (dev ? 0 : 8)); - val32 |= (t2 << (dev ? 8 : 0)); - writel(val32, base + BK3710_REGSTB); - - val32 = readl(base + BK3710_REGRCVR) & (0xFF << (dev ? 0 : 8)); - val32 |= (t2i << (dev ? 8 : 0)); - writel(val32, base + BK3710_REGRCVR); -} - -static void palm_bk3710_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - int is_slave = drive->dn & 1; - void __iomem *base = (void __iomem *)hwif->dma_base; - const u8 xferspeed = drive->dma_mode; - - if (xferspeed >= XFER_UDMA_0) { - palm_bk3710_setudmamode(base, is_slave, - xferspeed - XFER_UDMA_0); - } else { - palm_bk3710_setdmamode(base, is_slave, - drive->id[ATA_ID_EIDE_DMA_MIN], - xferspeed); - } -} - -static void palm_bk3710_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - unsigned int cycle_time; - int is_slave = drive->dn & 1; - ide_drive_t *mate; - void __iomem *base = (void __iomem *)hwif->dma_base; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - /* - * Obtain the drive PIO data for tuning the Palm Chip registers - */ - cycle_time = ide_pio_cycle_time(drive, pio); - mate = ide_get_pair_dev(drive); - palm_bk3710_setpiomode(base, mate, is_slave, cycle_time, pio); -} - -static void palm_bk3710_chipinit(void __iomem *base) -{ - /* - * REVISIT: the ATA reset signal needs to be managed through a - * GPIO, which means it should come from platform_data. Until - * we get and use such information, we have to trust that things - * have been reset before we get here. - */ - - /* - * Program the IDETIMP Register Value based on the following assumptions - * - * (ATA_IDETIMP_IDEEN , ENABLE ) | - * (ATA_IDETIMP_PREPOST1 , DISABLE) | - * (ATA_IDETIMP_PREPOST0 , DISABLE) | - * - * DM6446 silicon rev 2.1 and earlier have no observed net benefit - * from enabling prefetch/postwrite. - */ - writew(BIT(15), base + BK3710_IDETIMP); - - /* - * UDMACTL Ultra-ATA DMA Control - * (ATA_UDMACTL_UDMAP1 , 0 ) | - * (ATA_UDMACTL_UDMAP0 , 0 ) - * - */ - writew(0, base + BK3710_UDMACTL); - - /* - * MISCCTL Miscellaneous Conrol Register - * (ATA_MISCCTL_HWNHLD1P , 1 cycle) - * (ATA_MISCCTL_HWNHLD0P , 1 cycle) - * (ATA_MISCCTL_TIMORIDE , 1) - */ - writel(0x001, base + BK3710_MISCCTL); - - /* - * IORDYTMP IORDY Timer for Primary Register - * (ATA_IORDYTMP_IORDYTMP , 0xffff ) - */ - writel(0xFFFF, base + BK3710_IORDYTMP); - - /* - * Configure BMISP Register - * (ATA_BMISP_DMAEN1 , DISABLE ) | - * (ATA_BMISP_DMAEN0 , DISABLE ) | - * (ATA_BMISP_IORDYINT , CLEAR) | - * (ATA_BMISP_INTRSTAT , CLEAR) | - * (ATA_BMISP_DMAERROR , CLEAR) - */ - writew(0, base + BK3710_BMISP); - - palm_bk3710_setpiomode(base, NULL, 0, 600, 0); - palm_bk3710_setpiomode(base, NULL, 1, 600, 0); -} - -static u8 palm_bk3710_cable_detect(ide_hwif_t *hwif) -{ - return ATA_CBL_PATA80; -} - -static int palm_bk3710_init_dma(ide_hwif_t *hwif, const struct ide_port_info *d) -{ - printk(KERN_INFO " %s: MMIO-DMA\n", hwif->name); - - if (ide_allocate_dma_engine(hwif)) - return -1; - - hwif->dma_base = hwif->io_ports.data_addr - IDE_PALM_ATA_PRI_REG_OFFSET; - - return 0; -} - -static const struct ide_port_ops palm_bk3710_ports_ops = { - .set_pio_mode = palm_bk3710_set_pio_mode, - .set_dma_mode = palm_bk3710_set_dma_mode, - .cable_detect = palm_bk3710_cable_detect, -}; - -static struct ide_port_info palm_bk3710_port_info __initdata = { - .init_dma = palm_bk3710_init_dma, - .port_ops = &palm_bk3710_ports_ops, - .dma_ops = &sff_dma_ops, - .host_flags = IDE_HFLAG_MMIO, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .chipset = ide_palm3710, -}; - -static int __init palm_bk3710_probe(struct platform_device *pdev) -{ - struct clk *clk; - struct resource *mem, *irq; - void __iomem *base; - unsigned long rate, mem_size; - int i, rc; - struct ide_hw hw, *hws[] = { &hw }; - - clk = clk_get(&pdev->dev, NULL); - if (IS_ERR(clk)) - return -ENODEV; - - clk_enable(clk); - rate = clk_get_rate(clk); - if (!rate) - return -EINVAL; - - /* NOTE: round *down* to meet minimum timings; we count in clocks */ - ideclk_period = 1000000000UL / rate; - - mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (mem == NULL) { - printk(KERN_ERR "failed to get memory region resource\n"); - return -ENODEV; - } - - irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); - if (irq == NULL) { - printk(KERN_ERR "failed to get IRQ resource\n"); - return -ENODEV; - } - - mem_size = resource_size(mem); - if (request_mem_region(mem->start, mem_size, "palm_bk3710") == NULL) { - printk(KERN_ERR "failed to request memory region\n"); - return -EBUSY; - } - - base = ioremap(mem->start, mem_size); - if (!base) { - printk(KERN_ERR "failed to map IO memory\n"); - release_mem_region(mem->start, mem_size); - return -ENOMEM; - } - - /* Configure the Palm Chip controller */ - palm_bk3710_chipinit(base); - - memset(&hw, 0, sizeof(hw)); - for (i = 0; i < IDE_NR_PORTS - 2; i++) - hw.io_ports_array[i] = (unsigned long) - (base + IDE_PALM_ATA_PRI_REG_OFFSET + i); - hw.io_ports.ctl_addr = (unsigned long) - (base + IDE_PALM_ATA_PRI_CTL_OFFSET); - hw.irq = irq->start; - hw.dev = &pdev->dev; - - palm_bk3710_port_info.udma_mask = rate < 100000000 ? ATA_UDMA4 : - ATA_UDMA5; - - /* Register the IDE interface with Linux */ - rc = ide_host_add(&palm_bk3710_port_info, hws, 1, NULL); - if (rc) - goto out; - - return 0; -out: - printk(KERN_WARNING "Palm Chip BK3710 IDE Register Fail\n"); - return rc; -} - -/* work with hotplug and coldplug */ -MODULE_ALIAS("platform:palm_bk3710"); - -static struct platform_driver platform_bk_driver = { - .driver = { - .name = "palm_bk3710", - }, -}; - -static int __init palm_bk3710_init(void) -{ - return platform_driver_probe(&platform_bk_driver, palm_bk3710_probe); -} - -module_init(palm_bk3710_init); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/pdc202xx_new.c b/drivers/ide/pdc202xx_new.c deleted file mode 100644 index 4fcafb9121e0..000000000000 --- a/drivers/ide/pdc202xx_new.c +++ /dev/null @@ -1,557 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Promise TX2/TX4/TX2000/133 IDE driver - * - * Split from: - * linux/drivers/ide/pdc202xx.c Version 0.35 Mar. 30, 2002 - * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2005-2007 MontaVista Software, Inc. - * Portions Copyright (C) 1999 Promise Technology, Inc. - * Author: Frank Tiernan (frankt@promise.com) - * Released under terms of General Public License - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ide.h> -#include <linux/ktime.h> - -#include <asm/io.h> - -#ifdef CONFIG_PPC_PMAC -#include <asm/prom.h> -#endif - -#define DRV_NAME "pdc202xx_new" - -#undef DEBUG - -#ifdef DEBUG -#define DBG(fmt, args...) printk("%s: " fmt, __func__, ## args) -#else -#define DBG(fmt, args...) -#endif - -static u8 max_dma_rate(struct pci_dev *pdev) -{ - u8 mode; - - switch(pdev->device) { - case PCI_DEVICE_ID_PROMISE_20277: - case PCI_DEVICE_ID_PROMISE_20276: - case PCI_DEVICE_ID_PROMISE_20275: - case PCI_DEVICE_ID_PROMISE_20271: - case PCI_DEVICE_ID_PROMISE_20269: - mode = 4; - break; - case PCI_DEVICE_ID_PROMISE_20270: - case PCI_DEVICE_ID_PROMISE_20268: - mode = 3; - break; - default: - return 0; - } - - return mode; -} - -/** - * get_indexed_reg - Get indexed register - * @hwif: for the port address - * @index: index of the indexed register - */ -static u8 get_indexed_reg(ide_hwif_t *hwif, u8 index) -{ - u8 value; - - outb(index, hwif->dma_base + 1); - value = inb(hwif->dma_base + 3); - - DBG("index[%02X] value[%02X]\n", index, value); - return value; -} - -/** - * set_indexed_reg - Set indexed register - * @hwif: for the port address - * @index: index of the indexed register - */ -static void set_indexed_reg(ide_hwif_t *hwif, u8 index, u8 value) -{ - outb(index, hwif->dma_base + 1); - outb(value, hwif->dma_base + 3); - DBG("index[%02X] value[%02X]\n", index, value); -} - -/* - * ATA Timing Tables based on 133 MHz PLL output clock. - * - * If the PLL outputs 100 MHz clock, the ASIC hardware will set - * the timing registers automatically when "set features" command is - * issued to the device. However, if the PLL output clock is 133 MHz, - * the following tables must be used. - */ -static struct pio_timing { - u8 reg0c, reg0d, reg13; -} pio_timings [] = { - { 0xfb, 0x2b, 0xac }, /* PIO mode 0, IORDY off, Prefetch off */ - { 0x46, 0x29, 0xa4 }, /* PIO mode 1, IORDY off, Prefetch off */ - { 0x23, 0x26, 0x64 }, /* PIO mode 2, IORDY off, Prefetch off */ - { 0x27, 0x0d, 0x35 }, /* PIO mode 3, IORDY on, Prefetch off */ - { 0x23, 0x09, 0x25 }, /* PIO mode 4, IORDY on, Prefetch off */ -}; - -static struct mwdma_timing { - u8 reg0e, reg0f; -} mwdma_timings [] = { - { 0xdf, 0x5f }, /* MWDMA mode 0 */ - { 0x6b, 0x27 }, /* MWDMA mode 1 */ - { 0x69, 0x25 }, /* MWDMA mode 2 */ -}; - -static struct udma_timing { - u8 reg10, reg11, reg12; -} udma_timings [] = { - { 0x4a, 0x0f, 0xd5 }, /* UDMA mode 0 */ - { 0x3a, 0x0a, 0xd0 }, /* UDMA mode 1 */ - { 0x2a, 0x07, 0xcd }, /* UDMA mode 2 */ - { 0x1a, 0x05, 0xcd }, /* UDMA mode 3 */ - { 0x1a, 0x03, 0xcd }, /* UDMA mode 4 */ - { 0x1a, 0x02, 0xcb }, /* UDMA mode 5 */ - { 0x1a, 0x01, 0xcb }, /* UDMA mode 6 */ -}; - -static void pdcnew_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 adj = (drive->dn & 1) ? 0x08 : 0x00; - const u8 speed = drive->dma_mode; - - /* - * IDE core issues SETFEATURES_XFER to the drive first (thanks to - * IDE_HFLAG_POST_SET_MODE in ->host_flags). PDC202xx hardware will - * automatically set the timing registers based on 100 MHz PLL output. - * - * As we set up the PLL to output 133 MHz for UltraDMA/133 capable - * chips, we must override the default register settings... - */ - if (max_dma_rate(dev) == 4) { - u8 mode = speed & 0x07; - - if (speed >= XFER_UDMA_0) { - set_indexed_reg(hwif, 0x10 + adj, - udma_timings[mode].reg10); - set_indexed_reg(hwif, 0x11 + adj, - udma_timings[mode].reg11); - set_indexed_reg(hwif, 0x12 + adj, - udma_timings[mode].reg12); - } else { - set_indexed_reg(hwif, 0x0e + adj, - mwdma_timings[mode].reg0e); - set_indexed_reg(hwif, 0x0f + adj, - mwdma_timings[mode].reg0f); - } - } else if (speed == XFER_UDMA_2) { - /* Set tHOLD bit to 0 if using UDMA mode 2 */ - u8 tmp = get_indexed_reg(hwif, 0x10 + adj); - - set_indexed_reg(hwif, 0x10 + adj, tmp & 0x7f); - } -} - -static void pdcnew_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 adj = (drive->dn & 1) ? 0x08 : 0x00; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - if (max_dma_rate(dev) == 4) { - set_indexed_reg(hwif, 0x0c + adj, pio_timings[pio].reg0c); - set_indexed_reg(hwif, 0x0d + adj, pio_timings[pio].reg0d); - set_indexed_reg(hwif, 0x13 + adj, pio_timings[pio].reg13); - } -} - -static u8 pdcnew_cable_detect(ide_hwif_t *hwif) -{ - if (get_indexed_reg(hwif, 0x0b) & 0x04) - return ATA_CBL_PATA40; - else - return ATA_CBL_PATA80; -} - -static void pdcnew_reset(ide_drive_t *drive) -{ - /* - * Deleted this because it is redundant from the caller. - */ - printk(KERN_WARNING "pdc202xx_new: %s channel reset.\n", - drive->hwif->channel ? "Secondary" : "Primary"); -} - -/** - * read_counter - Read the byte count registers - * @dma_base: for the port address - */ -static long read_counter(u32 dma_base) -{ - u32 pri_dma_base = dma_base, sec_dma_base = dma_base + 0x08; - u8 cnt0, cnt1, cnt2, cnt3; - long count = 0, last; - int retry = 3; - - do { - last = count; - - /* Read the current count */ - outb(0x20, pri_dma_base + 0x01); - cnt0 = inb(pri_dma_base + 0x03); - outb(0x21, pri_dma_base + 0x01); - cnt1 = inb(pri_dma_base + 0x03); - outb(0x20, sec_dma_base + 0x01); - cnt2 = inb(sec_dma_base + 0x03); - outb(0x21, sec_dma_base + 0x01); - cnt3 = inb(sec_dma_base + 0x03); - - count = (cnt3 << 23) | (cnt2 << 15) | (cnt1 << 8) | cnt0; - - /* - * The 30-bit decrementing counter is read in 4 pieces. - * Incorrect value may be read when the most significant bytes - * are changing... - */ - } while (retry-- && (((last ^ count) & 0x3fff8000) || last < count)); - - DBG("cnt0[%02X] cnt1[%02X] cnt2[%02X] cnt3[%02X]\n", - cnt0, cnt1, cnt2, cnt3); - - return count; -} - -/** - * detect_pll_input_clock - Detect the PLL input clock in Hz. - * @dma_base: for the port address - * E.g. 16949000 on 33 MHz PCI bus, i.e. half of the PCI clock. - */ -static long detect_pll_input_clock(unsigned long dma_base) -{ - ktime_t start_time, end_time; - long start_count, end_count; - long pll_input, usec_elapsed; - u8 scr1; - - start_count = read_counter(dma_base); - start_time = ktime_get(); - - /* Start the test mode */ - outb(0x01, dma_base + 0x01); - scr1 = inb(dma_base + 0x03); - DBG("scr1[%02X]\n", scr1); - outb(scr1 | 0x40, dma_base + 0x03); - - /* Let the counter run for 10 ms. */ - mdelay(10); - - end_count = read_counter(dma_base); - end_time = ktime_get(); - - /* Stop the test mode */ - outb(0x01, dma_base + 0x01); - scr1 = inb(dma_base + 0x03); - DBG("scr1[%02X]\n", scr1); - outb(scr1 & ~0x40, dma_base + 0x03); - - /* - * Calculate the input clock in Hz - * (the clock counter is 30 bit wide and counts down) - */ - usec_elapsed = ktime_us_delta(end_time, start_time); - pll_input = ((start_count - end_count) & 0x3fffffff) / 10 * - (10000000 / usec_elapsed); - - DBG("start[%ld] end[%ld]\n", start_count, end_count); - - return pll_input; -} - -#ifdef CONFIG_PPC_PMAC -static void apple_kiwi_init(struct pci_dev *pdev) -{ - struct device_node *np = pci_device_to_OF_node(pdev); - u8 conf; - - if (np == NULL || !of_device_is_compatible(np, "kiwi-root")) - return; - - if (pdev->revision >= 0x03) { - /* Setup chip magic config stuff (from darwin) */ - pci_read_config_byte (pdev, 0x40, &conf); - pci_write_config_byte(pdev, 0x40, (conf | 0x01)); - } -} -#endif /* CONFIG_PPC_PMAC */ - -static int init_chipset_pdcnew(struct pci_dev *dev) -{ - const char *name = DRV_NAME; - unsigned long dma_base = pci_resource_start(dev, 4); - unsigned long sec_dma_base = dma_base + 0x08; - long pll_input, pll_output, ratio; - int f, r; - u8 pll_ctl0, pll_ctl1; - - if (dma_base == 0) - return -EFAULT; - -#ifdef CONFIG_PPC_PMAC - apple_kiwi_init(dev); -#endif - - /* Calculate the required PLL output frequency */ - switch(max_dma_rate(dev)) { - case 4: /* it's 133 MHz for Ultra133 chips */ - pll_output = 133333333; - break; - case 3: /* and 100 MHz for Ultra100 chips */ - default: - pll_output = 100000000; - break; - } - - /* - * Detect PLL input clock. - * On some systems, where PCI bus is running at non-standard clock rate - * (e.g. 25 or 40 MHz), we have to adjust the cycle time. - * PDC20268 and newer chips employ PLL circuit to help correct timing - * registers setting. - */ - pll_input = detect_pll_input_clock(dma_base); - printk(KERN_INFO "%s %s: PLL input clock is %ld kHz\n", - name, pci_name(dev), pll_input / 1000); - - /* Sanity check */ - if (unlikely(pll_input < 5000000L || pll_input > 70000000L)) { - printk(KERN_ERR "%s %s: Bad PLL input clock %ld Hz, giving up!" - "\n", name, pci_name(dev), pll_input); - goto out; - } - -#ifdef DEBUG - DBG("pll_output is %ld Hz\n", pll_output); - - /* Show the current clock value of PLL control register - * (maybe already configured by the BIOS) - */ - outb(0x02, sec_dma_base + 0x01); - pll_ctl0 = inb(sec_dma_base + 0x03); - outb(0x03, sec_dma_base + 0x01); - pll_ctl1 = inb(sec_dma_base + 0x03); - - DBG("pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1); -#endif - - /* - * Calculate the ratio of F, R and NO - * POUT = (F + 2) / (( R + 2) * NO) - */ - ratio = pll_output / (pll_input / 1000); - if (ratio < 8600L) { /* 8.6x */ - /* Using NO = 0x01, R = 0x0d */ - r = 0x0d; - } else if (ratio < 12900L) { /* 12.9x */ - /* Using NO = 0x01, R = 0x08 */ - r = 0x08; - } else if (ratio < 16100L) { /* 16.1x */ - /* Using NO = 0x01, R = 0x06 */ - r = 0x06; - } else if (ratio < 64000L) { /* 64x */ - r = 0x00; - } else { - /* Invalid ratio */ - printk(KERN_ERR "%s %s: Bad ratio %ld, giving up!\n", - name, pci_name(dev), ratio); - goto out; - } - - f = (ratio * (r + 2)) / 1000 - 2; - - DBG("F[%d] R[%d] ratio*1000[%ld]\n", f, r, ratio); - - if (unlikely(f < 0 || f > 127)) { - /* Invalid F */ - printk(KERN_ERR "%s %s: F[%d] invalid!\n", - name, pci_name(dev), f); - goto out; - } - - pll_ctl0 = (u8) f; - pll_ctl1 = (u8) r; - - DBG("Writing pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1); - - outb(0x02, sec_dma_base + 0x01); - outb(pll_ctl0, sec_dma_base + 0x03); - outb(0x03, sec_dma_base + 0x01); - outb(pll_ctl1, sec_dma_base + 0x03); - - /* Wait the PLL circuit to be stable */ - mdelay(30); - -#ifdef DEBUG - /* - * Show the current clock value of PLL control register - */ - outb(0x02, sec_dma_base + 0x01); - pll_ctl0 = inb(sec_dma_base + 0x03); - outb(0x03, sec_dma_base + 0x01); - pll_ctl1 = inb(sec_dma_base + 0x03); - - DBG("pll_ctl[%02X][%02X]\n", pll_ctl0, pll_ctl1); -#endif - - out: - return 0; -} - -static struct pci_dev *pdc20270_get_dev2(struct pci_dev *dev) -{ - struct pci_dev *dev2; - - dev2 = pci_get_slot(dev->bus, PCI_DEVFN(PCI_SLOT(dev->devfn) + 1, - PCI_FUNC(dev->devfn))); - - if (dev2 && - dev2->vendor == dev->vendor && - dev2->device == dev->device) { - - if (dev2->irq != dev->irq) { - dev2->irq = dev->irq; - printk(KERN_INFO DRV_NAME " %s: PCI config space " - "interrupt fixed\n", pci_name(dev)); - } - - return dev2; - } - - return NULL; -} - -static const struct ide_port_ops pdcnew_port_ops = { - .set_pio_mode = pdcnew_set_pio_mode, - .set_dma_mode = pdcnew_set_dma_mode, - .resetproc = pdcnew_reset, - .cable_detect = pdcnew_cable_detect, -}; - -#define DECLARE_PDCNEW_DEV(udma) \ - { \ - .name = DRV_NAME, \ - .init_chipset = init_chipset_pdcnew, \ - .port_ops = &pdcnew_port_ops, \ - .host_flags = IDE_HFLAG_POST_SET_MODE | \ - IDE_HFLAG_ERROR_STOPS_FIFO | \ - IDE_HFLAG_OFF_BOARD, \ - .pio_mask = ATA_PIO4, \ - .mwdma_mask = ATA_MWDMA2, \ - .udma_mask = udma, \ - } - -static const struct ide_port_info pdcnew_chipsets[] = { - /* 0: PDC202{68,70} */ DECLARE_PDCNEW_DEV(ATA_UDMA5), - /* 1: PDC202{69,71,75,76,77} */ DECLARE_PDCNEW_DEV(ATA_UDMA6), -}; - -/** - * pdc202new_init_one - called when a pdc202xx is found - * @dev: the pdc202new device - * @id: the matching pci id - * - * Called when the PCI registration layer (or the IDE initialization) - * finds a device matching our IDE device tables. - */ - -static int pdc202new_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - const struct ide_port_info *d = &pdcnew_chipsets[id->driver_data]; - struct pci_dev *bridge = dev->bus->self; - - if (dev->device == PCI_DEVICE_ID_PROMISE_20270 && bridge && - bridge->vendor == PCI_VENDOR_ID_DEC && - bridge->device == PCI_DEVICE_ID_DEC_21150) { - struct pci_dev *dev2; - - if (PCI_SLOT(dev->devfn) & 2) - return -ENODEV; - - dev2 = pdc20270_get_dev2(dev); - - if (dev2) { - int ret = ide_pci_init_two(dev, dev2, d, NULL); - if (ret < 0) - pci_dev_put(dev2); - return ret; - } - } - - if (dev->device == PCI_DEVICE_ID_PROMISE_20276 && bridge && - bridge->vendor == PCI_VENDOR_ID_INTEL && - (bridge->device == PCI_DEVICE_ID_INTEL_I960 || - bridge->device == PCI_DEVICE_ID_INTEL_I960RM)) { - printk(KERN_INFO DRV_NAME " %s: attached to I2O RAID controller," - " skipping\n", pci_name(dev)); - return -ENODEV; - } - - return ide_pci_init_one(dev, d, NULL); -} - -static void pdc202new_remove(struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL; - - ide_pci_remove(dev); - pci_dev_put(dev2); -} - -static const struct pci_device_id pdc202new_pci_tbl[] = { - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20268), 0 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20269), 1 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20270), 0 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20271), 1 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20275), 1 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20276), 1 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20277), 1 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, pdc202new_pci_tbl); - -static struct pci_driver pdc202new_pci_driver = { - .name = "Promise_IDE", - .id_table = pdc202new_pci_tbl, - .probe = pdc202new_init_one, - .remove = pdc202new_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init pdc202new_ide_init(void) -{ - return ide_pci_register_driver(&pdc202new_pci_driver); -} - -static void __exit pdc202new_ide_exit(void) -{ - pci_unregister_driver(&pdc202new_pci_driver); -} - -module_init(pdc202new_ide_init); -module_exit(pdc202new_ide_exit); - -MODULE_AUTHOR("Andre Hedrick, Frank Tiernan"); -MODULE_DESCRIPTION("PCI driver module for Promise PDC20268 and higher"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/pdc202xx_old.c b/drivers/ide/pdc202xx_old.c deleted file mode 100644 index 5248ac064e6e..000000000000 --- a/drivers/ide/pdc202xx_old.c +++ /dev/null @@ -1,362 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1998-2002 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2006-2007, 2009 MontaVista Software, Inc. - * Copyright (C) 2007-2010 Bartlomiej Zolnierkiewicz - * - * Portions Copyright (C) 1999 Promise Technology, Inc. - * Author: Frank Tiernan (frankt@promise.com) - * Released under terms of General Public License - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/blkdev.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ide.h> - -#include <asm/io.h> - -#define DRV_NAME "pdc202xx_old" - -static void pdc202xx_set_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 drive_pci = 0x60 + (drive->dn << 2); - const u8 speed = drive->dma_mode; - - u8 AP = 0, BP = 0, CP = 0; - u8 TA = 0, TB = 0, TC = 0; - - pci_read_config_byte(dev, drive_pci, &AP); - pci_read_config_byte(dev, drive_pci + 1, &BP); - pci_read_config_byte(dev, drive_pci + 2, &CP); - - switch(speed) { - case XFER_UDMA_5: - case XFER_UDMA_4: TB = 0x20; TC = 0x01; break; - case XFER_UDMA_2: TB = 0x20; TC = 0x01; break; - case XFER_UDMA_3: - case XFER_UDMA_1: TB = 0x40; TC = 0x02; break; - case XFER_UDMA_0: - case XFER_MW_DMA_2: TB = 0x60; TC = 0x03; break; - case XFER_MW_DMA_1: TB = 0x60; TC = 0x04; break; - case XFER_MW_DMA_0: TB = 0xE0; TC = 0x0F; break; - case XFER_PIO_4: TA = 0x01; TB = 0x04; break; - case XFER_PIO_3: TA = 0x02; TB = 0x06; break; - case XFER_PIO_2: TA = 0x03; TB = 0x08; break; - case XFER_PIO_1: TA = 0x05; TB = 0x0C; break; - case XFER_PIO_0: - default: TA = 0x09; TB = 0x13; break; - } - - if (speed < XFER_SW_DMA_0) { - /* - * preserve SYNC_INT / ERDDY_EN bits while clearing - * Prefetch_EN / IORDY_EN / PA[3:0] bits of register A - */ - AP &= ~0x3f; - if (ide_pio_need_iordy(drive, speed - XFER_PIO_0)) - AP |= 0x20; /* set IORDY_EN bit */ - if (drive->media == ide_disk) - AP |= 0x10; /* set Prefetch_EN bit */ - /* clear PB[4:0] bits of register B */ - BP &= ~0x1f; - pci_write_config_byte(dev, drive_pci, AP | TA); - pci_write_config_byte(dev, drive_pci + 1, BP | TB); - } else { - /* clear MB[2:0] bits of register B */ - BP &= ~0xe0; - /* clear MC[3:0] bits of register C */ - CP &= ~0x0f; - pci_write_config_byte(dev, drive_pci + 1, BP | TB); - pci_write_config_byte(dev, drive_pci + 2, CP | TC); - } -} - -static void pdc202xx_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - drive->dma_mode = drive->pio_mode; - pdc202xx_set_mode(hwif, drive); -} - -static int pdc202xx_test_irq(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long high_16 = pci_resource_start(dev, 4); - u8 sc1d = inb(high_16 + 0x1d); - - if (hwif->channel) { - /* - * bit 7: error, bit 6: interrupting, - * bit 5: FIFO full, bit 4: FIFO empty - */ - return (sc1d & 0x40) ? 1 : 0; - } else { - /* - * bit 3: error, bit 2: interrupting, - * bit 1: FIFO full, bit 0: FIFO empty - */ - return (sc1d & 0x04) ? 1 : 0; - } -} - -static u8 pdc2026x_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u16 CIS, mask = hwif->channel ? (1 << 11) : (1 << 10); - - pci_read_config_word(dev, 0x50, &CIS); - - return (CIS & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80; -} - -/* - * Set the control register to use the 66MHz system - * clock for UDMA 3/4/5 mode operation when necessary. - * - * FIXME: this register is shared by both channels, some locking is needed - * - * It may also be possible to leave the 66MHz clock on - * and readjust the timing parameters. - */ -static void pdc_old_enable_66MHz_clock(ide_hwif_t *hwif) -{ - unsigned long clock_reg = hwif->extra_base + 0x01; - u8 clock = inb(clock_reg); - - outb(clock | (hwif->channel ? 0x08 : 0x02), clock_reg); -} - -static void pdc_old_disable_66MHz_clock(ide_hwif_t *hwif) -{ - unsigned long clock_reg = hwif->extra_base + 0x01; - u8 clock = inb(clock_reg); - - outb(clock & ~(hwif->channel ? 0x08 : 0x02), clock_reg); -} - -static void pdc2026x_init_hwif(ide_hwif_t *hwif) -{ - pdc_old_disable_66MHz_clock(hwif); -} - -static void pdc202xx_dma_start(ide_drive_t *drive) -{ - if (drive->current_speed > XFER_UDMA_2) - pdc_old_enable_66MHz_clock(drive->hwif); - if (drive->media != ide_disk || (drive->dev_flags & IDE_DFLAG_LBA48)) { - ide_hwif_t *hwif = drive->hwif; - struct request *rq = hwif->rq; - unsigned long high_16 = hwif->extra_base - 16; - unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20); - u32 word_count = 0; - u8 clock = inb(high_16 + 0x11); - - outb(clock | (hwif->channel ? 0x08 : 0x02), high_16 + 0x11); - word_count = (blk_rq_sectors(rq) << 8); - word_count = (rq_data_dir(rq) == READ) ? - word_count | 0x05000000 : - word_count | 0x06000000; - outl(word_count, atapi_reg); - } - ide_dma_start(drive); -} - -static int pdc202xx_dma_end(ide_drive_t *drive) -{ - if (drive->media != ide_disk || (drive->dev_flags & IDE_DFLAG_LBA48)) { - ide_hwif_t *hwif = drive->hwif; - unsigned long high_16 = hwif->extra_base - 16; - unsigned long atapi_reg = high_16 + (hwif->channel ? 0x24 : 0x20); - u8 clock = 0; - - outl(0, atapi_reg); /* zero out extra */ - clock = inb(high_16 + 0x11); - outb(clock & ~(hwif->channel ? 0x08:0x02), high_16 + 0x11); - } - if (drive->current_speed > XFER_UDMA_2) - pdc_old_disable_66MHz_clock(drive->hwif); - return ide_dma_end(drive); -} - -static int init_chipset_pdc202xx(struct pci_dev *dev) -{ - unsigned long dmabase = pci_resource_start(dev, 4); - u8 udma_speed_flag = 0, primary_mode = 0, secondary_mode = 0; - - if (dmabase == 0) - goto out; - - udma_speed_flag = inb(dmabase | 0x1f); - primary_mode = inb(dmabase | 0x1a); - secondary_mode = inb(dmabase | 0x1b); - printk(KERN_INFO "%s: (U)DMA Burst Bit %sABLED " \ - "Primary %s Mode " \ - "Secondary %s Mode.\n", pci_name(dev), - (udma_speed_flag & 1) ? "EN" : "DIS", - (primary_mode & 1) ? "MASTER" : "PCI", - (secondary_mode & 1) ? "MASTER" : "PCI" ); - - if (!(udma_speed_flag & 1)) { - printk(KERN_INFO "%s: FORCING BURST BIT 0x%02x->0x%02x ", - pci_name(dev), udma_speed_flag, - (udma_speed_flag|1)); - outb(udma_speed_flag | 1, dmabase | 0x1f); - printk("%sACTIVE\n", (inb(dmabase | 0x1f) & 1) ? "" : "IN"); - } -out: - return 0; -} - -static void pdc202ata4_fixup_irq(struct pci_dev *dev, const char *name) -{ - if ((dev->class >> 8) != PCI_CLASS_STORAGE_IDE) { - u8 irq = 0, irq2 = 0; - pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq); - /* 0xbc */ - pci_read_config_byte(dev, (PCI_INTERRUPT_LINE)|0x80, &irq2); - if (irq != irq2) { - pci_write_config_byte(dev, - (PCI_INTERRUPT_LINE)|0x80, irq); /* 0xbc */ - printk(KERN_INFO "%s %s: PCI config space interrupt " - "mirror fixed\n", name, pci_name(dev)); - } - } -} - -#define IDE_HFLAGS_PDC202XX \ - (IDE_HFLAG_ERROR_STOPS_FIFO | \ - IDE_HFLAG_OFF_BOARD) - -static const struct ide_port_ops pdc20246_port_ops = { - .set_pio_mode = pdc202xx_set_pio_mode, - .set_dma_mode = pdc202xx_set_mode, - .test_irq = pdc202xx_test_irq, -}; - -static const struct ide_port_ops pdc2026x_port_ops = { - .set_pio_mode = pdc202xx_set_pio_mode, - .set_dma_mode = pdc202xx_set_mode, - .test_irq = pdc202xx_test_irq, - .cable_detect = pdc2026x_cable_detect, -}; - -static const struct ide_dma_ops pdc2026x_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = pdc202xx_dma_start, - .dma_end = pdc202xx_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = ide_dma_sff_read_status, -}; - -#define DECLARE_PDC2026X_DEV(udma, sectors) \ - { \ - .name = DRV_NAME, \ - .init_chipset = init_chipset_pdc202xx, \ - .init_hwif = pdc2026x_init_hwif, \ - .port_ops = &pdc2026x_port_ops, \ - .dma_ops = &pdc2026x_dma_ops, \ - .host_flags = IDE_HFLAGS_PDC202XX, \ - .pio_mask = ATA_PIO4, \ - .mwdma_mask = ATA_MWDMA2, \ - .udma_mask = udma, \ - .max_sectors = sectors, \ - } - -static const struct ide_port_info pdc202xx_chipsets[] = { - { /* 0: PDC20246 */ - .name = DRV_NAME, - .init_chipset = init_chipset_pdc202xx, - .port_ops = &pdc20246_port_ops, - .dma_ops = &sff_dma_ops, - .host_flags = IDE_HFLAGS_PDC202XX, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA2, - }, - - /* 1: PDC2026{2,3} */ - DECLARE_PDC2026X_DEV(ATA_UDMA4, 0), - /* 2: PDC2026{5,7}: UDMA5, limit LBA48 requests to 256 sectors */ - DECLARE_PDC2026X_DEV(ATA_UDMA5, 256), -}; - -/** - * pdc202xx_init_one - called when a PDC202xx is found - * @dev: the pdc202xx device - * @id: the matching pci id - * - * Called when the PCI registration layer (or the IDE initialization) - * finds a device matching our IDE device tables. - */ - -static int pdc202xx_init_one(struct pci_dev *dev, - const struct pci_device_id *id) -{ - const struct ide_port_info *d; - u8 idx = id->driver_data; - - d = &pdc202xx_chipsets[idx]; - - if (idx < 2) - pdc202ata4_fixup_irq(dev, d->name); - - if (dev->vendor == PCI_DEVICE_ID_PROMISE_20265) { - struct pci_dev *bridge = dev->bus->self; - - if (bridge && - bridge->vendor == PCI_VENDOR_ID_INTEL && - (bridge->device == PCI_DEVICE_ID_INTEL_I960 || - bridge->device == PCI_DEVICE_ID_INTEL_I960RM)) { - printk(KERN_INFO DRV_NAME " %s: skipping Promise " - "PDC20265 attached to I2O RAID controller\n", - pci_name(dev)); - return -ENODEV; - } - } - - return ide_pci_init_one(dev, d, NULL); -} - -static const struct pci_device_id pdc202xx_pci_tbl[] = { - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20246), 0 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20262), 1 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20263), 1 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20265), 2 }, - { PCI_VDEVICE(PROMISE, PCI_DEVICE_ID_PROMISE_20267), 2 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, pdc202xx_pci_tbl); - -static struct pci_driver pdc202xx_pci_driver = { - .name = "Promise_Old_IDE", - .id_table = pdc202xx_pci_tbl, - .probe = pdc202xx_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init pdc202xx_ide_init(void) -{ - return ide_pci_register_driver(&pdc202xx_pci_driver); -} - -static void __exit pdc202xx_ide_exit(void) -{ - pci_unregister_driver(&pdc202xx_pci_driver); -} - -module_init(pdc202xx_ide_init); -module_exit(pdc202xx_ide_exit); - -MODULE_AUTHOR("Andre Hedrick, Frank Tiernan, Bartlomiej Zolnierkiewicz"); -MODULE_DESCRIPTION("PCI driver module for older Promise IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/piix.c b/drivers/ide/piix.c deleted file mode 100644 index a671cead6ae7..000000000000 --- a/drivers/ide/piix.c +++ /dev/null @@ -1,476 +0,0 @@ -/* - * Copyright (C) 1998-1999 Andrzej Krzysztofowicz, Author and Maintainer - * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2003 Red Hat - * Copyright (C) 2006-2007 MontaVista Software, Inc. <source@mvista.com> - * - * May be copied or modified under the terms of the GNU General Public License - * - * Documentation: - * - * Publicly available from Intel web site. Errata documentation - * is also publicly available. As an aide to anyone hacking on this - * driver the list of errata that are relevant is below.going back to - * PIIX4. Older device documentation is now a bit tricky to find. - * - * Errata of note: - * - * Unfixable - * PIIX4 errata #9 - Only on ultra obscure hw - * ICH3 errata #13 - Not observed to affect real hw - * by Intel - * - * Things we must deal with - * PIIX4 errata #10 - BM IDE hang with non UDMA - * (must stop/start dma to recover) - * 440MX errata #15 - As PIIX4 errata #10 - * PIIX4 errata #15 - Must not read control registers - * during a PIO transfer - * 440MX errata #13 - As PIIX4 errata #15 - * ICH2 errata #21 - DMA mode 0 doesn't work right - * ICH0/1 errata #55 - As ICH2 errata #21 - * ICH2 spec c #9 - Extra operations needed to handle - * drive hotswap [NOT YET SUPPORTED] - * ICH2 spec c #20 - IDE PRD must not cross a 64K boundary - * and must be dword aligned - * ICH2 spec c #24 - UDMA mode 4,5 t85/86 should be 6ns not 3.3 - * - * Should have been BIOS fixed: - * 450NX: errata #19 - DMA hangs on old 450NX - * 450NX: errata #20 - DMA hangs on old 450NX - * 450NX: errata #25 - Corruption with DMA on old 450NX - * ICH3 errata #15 - IDE deadlock under high load - * (BIOS must set dev 31 fn 0 bit 23) - * ICH3 errata #18 - Don't use native mode - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#include <asm/io.h> - -#define DRV_NAME "piix" - -static int no_piix_dma; - -/** - * piix_set_pio_mode - set host controller for PIO mode - * @port: port - * @drive: drive - * - * Set the interface PIO mode based upon the settings done by AMI BIOS. - */ - -static void piix_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - int is_slave = drive->dn & 1; - int master_port = hwif->channel ? 0x42 : 0x40; - int slave_port = 0x44; - unsigned long flags; - u16 master_data; - u8 slave_data; - static DEFINE_SPINLOCK(tune_lock); - int control = 0; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - /* ISP RTC */ - static const u8 timings[][2]= { - { 0, 0 }, - { 0, 0 }, - { 1, 0 }, - { 2, 1 }, - { 2, 3 }, }; - - /* - * Master vs slave is synchronized above us but the slave register is - * shared by the two hwifs so the corner case of two slave timeouts in - * parallel must be locked. - */ - spin_lock_irqsave(&tune_lock, flags); - pci_read_config_word(dev, master_port, &master_data); - - if (pio > 1) - control |= 1; /* Programmable timing on */ - if (drive->media == ide_disk) - control |= 4; /* Prefetch, post write */ - if (ide_pio_need_iordy(drive, pio)) - control |= 2; /* IORDY */ - if (is_slave) { - master_data |= 0x4000; - master_data &= ~0x0070; - if (pio > 1) { - /* Set PPE, IE and TIME */ - master_data |= control << 4; - } - pci_read_config_byte(dev, slave_port, &slave_data); - slave_data &= hwif->channel ? 0x0f : 0xf0; - slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << - (hwif->channel ? 4 : 0); - } else { - master_data &= ~0x3307; - if (pio > 1) { - /* enable PPE, IE and TIME */ - master_data |= control; - } - master_data |= (timings[pio][0] << 12) | (timings[pio][1] << 8); - } - pci_write_config_word(dev, master_port, master_data); - if (is_slave) - pci_write_config_byte(dev, slave_port, slave_data); - spin_unlock_irqrestore(&tune_lock, flags); -} - -/** - * piix_set_dma_mode - set host controller for DMA mode - * @hwif: port - * @drive: drive - * - * Set a PIIX host controller to the desired DMA mode. This involves - * programming the right timing data into the PCI configuration space. - */ - -static void piix_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 maslave = hwif->channel ? 0x42 : 0x40; - int a_speed = 3 << (drive->dn * 4); - int u_flag = 1 << drive->dn; - int v_flag = 0x01 << drive->dn; - int w_flag = 0x10 << drive->dn; - int u_speed = 0; - int sitre; - u16 reg4042, reg4a; - u8 reg48, reg54, reg55; - const u8 speed = drive->dma_mode; - - pci_read_config_word(dev, maslave, ®4042); - sitre = (reg4042 & 0x4000) ? 1 : 0; - pci_read_config_byte(dev, 0x48, ®48); - pci_read_config_word(dev, 0x4a, ®4a); - pci_read_config_byte(dev, 0x54, ®54); - pci_read_config_byte(dev, 0x55, ®55); - - if (speed >= XFER_UDMA_0) { - u8 udma = speed - XFER_UDMA_0; - - u_speed = min_t(u8, 2 - (udma & 1), udma) << (drive->dn * 4); - - if (!(reg48 & u_flag)) - pci_write_config_byte(dev, 0x48, reg48 | u_flag); - if (speed == XFER_UDMA_5) { - pci_write_config_byte(dev, 0x55, (u8) reg55|w_flag); - } else { - pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag); - } - if ((reg4a & a_speed) != u_speed) - pci_write_config_word(dev, 0x4a, (reg4a & ~a_speed) | u_speed); - if (speed > XFER_UDMA_2) { - if (!(reg54 & v_flag)) - pci_write_config_byte(dev, 0x54, reg54 | v_flag); - } else - pci_write_config_byte(dev, 0x54, reg54 & ~v_flag); - } else { - const u8 mwdma_to_pio[] = { 0, 3, 4 }; - - if (reg48 & u_flag) - pci_write_config_byte(dev, 0x48, reg48 & ~u_flag); - if (reg4a & a_speed) - pci_write_config_word(dev, 0x4a, reg4a & ~a_speed); - if (reg54 & v_flag) - pci_write_config_byte(dev, 0x54, reg54 & ~v_flag); - if (reg55 & w_flag) - pci_write_config_byte(dev, 0x55, (u8) reg55 & ~w_flag); - - if (speed >= XFER_MW_DMA_0) - drive->pio_mode = - mwdma_to_pio[speed - XFER_MW_DMA_0] + XFER_PIO_0; - else - drive->pio_mode = XFER_PIO_2; /* for SWDMA2 */ - - piix_set_pio_mode(hwif, drive); - } -} - -/** - * init_chipset_ich - set up the ICH chipset - * @dev: PCI device to set up - * - * Initialize the PCI device as required. For the ICH this turns - * out to be nice and simple. - */ - -static int init_chipset_ich(struct pci_dev *dev) -{ - u32 extra = 0; - - pci_read_config_dword(dev, 0x54, &extra); - pci_write_config_dword(dev, 0x54, extra | 0x400); - - return 0; -} - -/** - * ich_clear_irq - clear BMDMA status - * @drive: IDE drive - * - * ICHx contollers set DMA INTR no matter DMA or PIO. - * BMDMA status might need to be cleared even for - * PIO interrupts to prevent spurious/lost IRQ. - */ -static void ich_clear_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 dma_stat; - - /* - * ide_dma_end() needs BMDMA status for error checking. - * So, skip clearing BMDMA status here and leave it - * to ide_dma_end() if this is DMA interrupt. - */ - if (drive->waiting_for_dma || hwif->dma_base == 0) - return; - - /* clear the INTR & ERROR bits */ - dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); - /* Should we force the bit as well ? */ - outb(dma_stat, hwif->dma_base + ATA_DMA_STATUS); -} - -struct ich_laptop { - u16 device; - u16 subvendor; - u16 subdevice; -}; - -/* - * List of laptops that use short cables rather than 80 wire - */ - -static const struct ich_laptop ich_laptop[] = { - /* devid, subvendor, subdev */ - { 0x27DF, 0x1025, 0x0102 }, /* ICH7 on Acer 5602aWLMi */ - { 0x27DF, 0x0005, 0x0280 }, /* ICH7 on Acer 5602WLMi */ - { 0x27DF, 0x1025, 0x0110 }, /* ICH7 on Acer 3682WLMi */ - { 0x27DF, 0x1043, 0x1267 }, /* ICH7 on Asus W5F */ - { 0x27DF, 0x103C, 0x30A1 }, /* ICH7 on HP Compaq nc2400 */ - { 0x27DF, 0x1071, 0xD221 }, /* ICH7 on Hercules EC-900 */ - { 0x24CA, 0x1025, 0x0061 }, /* ICH4 on Acer Aspire 2023WLMi */ - { 0x24CA, 0x1025, 0x003d }, /* ICH4 on ACER TM290 */ - { 0x266F, 0x1025, 0x0066 }, /* ICH6 on ACER Aspire 1694WLMi */ - { 0x2653, 0x1043, 0x82D8 }, /* ICH6M on Asus Eee 701 */ - { 0x27df, 0x104d, 0x900e }, /* ICH7 on Sony TZ-90 */ - /* end marker */ - { 0, } -}; - -static u8 piix_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *pdev = to_pci_dev(hwif->dev); - const struct ich_laptop *lap = &ich_laptop[0]; - u8 reg54h = 0, mask = hwif->channel ? 0xc0 : 0x30; - - /* check for specials */ - while (lap->device) { - if (lap->device == pdev->device && - lap->subvendor == pdev->subsystem_vendor && - lap->subdevice == pdev->subsystem_device) { - return ATA_CBL_PATA40_SHORT; - } - lap++; - } - - pci_read_config_byte(pdev, 0x54, ®54h); - - return (reg54h & mask) ? ATA_CBL_PATA80 : ATA_CBL_PATA40; -} - -/** - * init_hwif_piix - fill in the hwif for the PIIX - * @hwif: IDE interface - * - * Set up the ide_hwif_t for the PIIX interface according to the - * capabilities of the hardware. - */ - -static void init_hwif_piix(ide_hwif_t *hwif) -{ - if (!hwif->dma_base) - return; - - if (no_piix_dma) - hwif->ultra_mask = hwif->mwdma_mask = hwif->swdma_mask = 0; -} - -static const struct ide_port_ops piix_port_ops = { - .set_pio_mode = piix_set_pio_mode, - .set_dma_mode = piix_set_dma_mode, - .cable_detect = piix_cable_detect, -}; - -static const struct ide_port_ops ich_port_ops = { - .set_pio_mode = piix_set_pio_mode, - .set_dma_mode = piix_set_dma_mode, - .clear_irq = ich_clear_irq, - .cable_detect = piix_cable_detect, -}; - -#define DECLARE_PIIX_DEV(udma) \ - { \ - .name = DRV_NAME, \ - .init_hwif = init_hwif_piix, \ - .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \ - .port_ops = &piix_port_ops, \ - .pio_mask = ATA_PIO4, \ - .swdma_mask = ATA_SWDMA2_ONLY, \ - .mwdma_mask = ATA_MWDMA12_ONLY, \ - .udma_mask = udma, \ - } - -#define DECLARE_ICH_DEV(mwdma, udma) \ - { \ - .name = DRV_NAME, \ - .init_chipset = init_chipset_ich, \ - .init_hwif = init_hwif_piix, \ - .enablebits = {{0x41,0x80,0x80}, {0x43,0x80,0x80}}, \ - .port_ops = &ich_port_ops, \ - .pio_mask = ATA_PIO4, \ - .swdma_mask = ATA_SWDMA2_ONLY, \ - .mwdma_mask = mwdma, \ - .udma_mask = udma, \ - } - -static const struct ide_port_info piix_pci_info[] = { - /* 0: MPIIX */ - { /* - * MPIIX actually has only a single IDE channel mapped to - * the primary or secondary ports depending on the value - * of the bit 14 of the IDETIM register at offset 0x6c - */ - .name = DRV_NAME, - .enablebits = {{0x6d,0xc0,0x80}, {0x6d,0xc0,0xc0}}, - .host_flags = IDE_HFLAG_ISA_PORTS | IDE_HFLAG_NO_DMA, - .pio_mask = ATA_PIO4, - /* This is a painful system best to let it self tune for now */ - }, - /* 1: PIIXa/PIIXb/PIIX3 */ - DECLARE_PIIX_DEV(0x00), /* no udma */ - /* 2: PIIX4 */ - DECLARE_PIIX_DEV(ATA_UDMA2), - /* 3: ICH0 */ - DECLARE_ICH_DEV(ATA_MWDMA12_ONLY, ATA_UDMA2), - /* 4: ICH */ - DECLARE_ICH_DEV(ATA_MWDMA12_ONLY, ATA_UDMA4), - /* 5: PIIX4 */ - DECLARE_PIIX_DEV(ATA_UDMA4), - /* 6: ICH[2-6]/ICH[2-3]M/C-ICH/ICH5-SATA/ESB2/ICH8M */ - DECLARE_ICH_DEV(ATA_MWDMA12_ONLY, ATA_UDMA5), - /* 7: ICH7/7-R, no MWDMA1 */ - DECLARE_ICH_DEV(ATA_MWDMA2_ONLY, ATA_UDMA5), -}; - -/** - * piix_init_one - called when a PIIX is found - * @dev: the piix device - * @id: the matching pci id - * - * Called when the PCI registration layer (or the IDE initialization) - * finds a device matching our IDE device tables. - */ - -static int piix_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - return ide_pci_init_one(dev, &piix_pci_info[id->driver_data], NULL); -} - -/** - * piix_check_450nx - Check for problem 450NX setup - * - * Check for the present of 450NX errata #19 and errata #25. If - * they are found, disable use of DMA IDE - */ - -static void piix_check_450nx(void) -{ - struct pci_dev *pdev = NULL; - u16 cfg; - while((pdev=pci_get_device(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82454NX, pdev))!=NULL) - { - /* Look for 450NX PXB. Check for problem configurations - A PCI quirk checks bit 6 already */ - pci_read_config_word(pdev, 0x41, &cfg); - /* Only on the original revision: IDE DMA can hang */ - if (pdev->revision == 0x00) - no_piix_dma = 1; - /* On all revisions below 5 PXB bus lock must be disabled for IDE */ - else if (cfg & (1<<14) && pdev->revision < 5) - no_piix_dma = 2; - } - if(no_piix_dma) - printk(KERN_WARNING DRV_NAME ": 450NX errata present, disabling IDE DMA.\n"); - if(no_piix_dma == 2) - printk(KERN_WARNING DRV_NAME ": A BIOS update may resolve this.\n"); -} - -static const struct pci_device_id piix_pci_tbl[] = { - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371FB_0), 1 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371FB_1), 1 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371MX), 0 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371SB_1), 1 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82371AB), 2 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801AB_1), 3 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82443MX_1), 2 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801AA_1), 4 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82372FB_1), 5 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82451NX), 2 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801BA_9), 6 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801BA_8), 6 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801CA_10), 6 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801CA_11), 6 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_11), 6 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801EB_11), 6 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801E_11), 6 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_10), 6 }, -#ifdef CONFIG_BLK_DEV_IDE_SATA - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801EB_1), 6 }, -#endif - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ESB_2), 6 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH6_19), 6 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH7_21), 7 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_82801DB_1), 6 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ESB2_18), 7 }, - { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_INTEL_ICH8_6), 6 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, piix_pci_tbl); - -static struct pci_driver piix_pci_driver = { - .name = "PIIX_IDE", - .id_table = piix_pci_tbl, - .probe = piix_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init piix_ide_init(void) -{ - piix_check_450nx(); - return ide_pci_register_driver(&piix_pci_driver); -} - -static void __exit piix_ide_exit(void) -{ - pci_unregister_driver(&piix_pci_driver); -} - -module_init(piix_ide_init); -module_exit(piix_ide_exit); - -MODULE_AUTHOR("Andre Hedrick, Andrzej Krzysztofowicz"); -MODULE_DESCRIPTION("PCI driver module for Intel PIIX IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/pmac.c b/drivers/ide/pmac.c deleted file mode 100644 index ea0b064b5f56..000000000000 --- a/drivers/ide/pmac.c +++ /dev/null @@ -1,1703 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Support for IDE interfaces on PowerMacs. - * - * These IDE interfaces are memory-mapped and have a DBDMA channel - * for doing DMA. - * - * Copyright (C) 1998-2003 Paul Mackerras & Ben. Herrenschmidt - * Copyright (C) 2007-2008 Bartlomiej Zolnierkiewicz - * - * Some code taken from drivers/ide/ide-dma.c: - * - * Copyright (c) 1995-1998 Mark Lord - * - * TODO: - Use pre-calculated (kauai) timing tables all the time and - * get rid of the "rounded" tables used previously, so we have the - * same table format for all controllers and can then just have one - * big table - */ -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/ide.h> -#include <linux/notifier.h> -#include <linux/module.h> -#include <linux/reboot.h> -#include <linux/pci.h> -#include <linux/adb.h> -#include <linux/pmu.h> -#include <linux/scatterlist.h> -#include <linux/slab.h> - -#include <asm/prom.h> -#include <asm/io.h> -#include <asm/dbdma.h> -#include <asm/ide.h> -#include <asm/machdep.h> -#include <asm/pmac_feature.h> -#include <asm/sections.h> -#include <asm/irq.h> -#include <asm/mediabay.h> - -#define DRV_NAME "ide-pmac" - -#undef IDE_PMAC_DEBUG - -#define DMA_WAIT_TIMEOUT 50 - -typedef struct pmac_ide_hwif { - unsigned long regbase; - int irq; - int kind; - int aapl_bus_id; - unsigned broken_dma : 1; - unsigned broken_dma_warn : 1; - struct device_node* node; - struct macio_dev *mdev; - u32 timings[4]; - volatile u32 __iomem * *kauai_fcr; - ide_hwif_t *hwif; - - /* Those fields are duplicating what is in hwif. We currently - * can't use the hwif ones because of some assumptions that are - * beeing done by the generic code about the kind of dma controller - * and format of the dma table. This will have to be fixed though. - */ - volatile struct dbdma_regs __iomem * dma_regs; - struct dbdma_cmd* dma_table_cpu; -} pmac_ide_hwif_t; - -enum { - controller_ohare, /* OHare based */ - controller_heathrow, /* Heathrow/Paddington */ - controller_kl_ata3, /* KeyLargo ATA-3 */ - controller_kl_ata4, /* KeyLargo ATA-4 */ - controller_un_ata6, /* UniNorth2 ATA-6 */ - controller_k2_ata6, /* K2 ATA-6 */ - controller_sh_ata6, /* Shasta ATA-6 */ -}; - -static const char* model_name[] = { - "OHare ATA", /* OHare based */ - "Heathrow ATA", /* Heathrow/Paddington */ - "KeyLargo ATA-3", /* KeyLargo ATA-3 (MDMA only) */ - "KeyLargo ATA-4", /* KeyLargo ATA-4 (UDMA/66) */ - "UniNorth ATA-6", /* UniNorth2 ATA-6 (UDMA/100) */ - "K2 ATA-6", /* K2 ATA-6 (UDMA/100) */ - "Shasta ATA-6", /* Shasta ATA-6 (UDMA/133) */ -}; - -/* - * Extra registers, both 32-bit little-endian - */ -#define IDE_TIMING_CONFIG 0x200 -#define IDE_INTERRUPT 0x300 - -/* Kauai (U2) ATA has different register setup */ -#define IDE_KAUAI_PIO_CONFIG 0x200 -#define IDE_KAUAI_ULTRA_CONFIG 0x210 -#define IDE_KAUAI_POLL_CONFIG 0x220 - -/* - * Timing configuration register definitions - */ - -/* Number of IDE_SYSCLK_NS ticks, argument is in nanoseconds */ -#define SYSCLK_TICKS(t) (((t) + IDE_SYSCLK_NS - 1) / IDE_SYSCLK_NS) -#define SYSCLK_TICKS_66(t) (((t) + IDE_SYSCLK_66_NS - 1) / IDE_SYSCLK_66_NS) -#define IDE_SYSCLK_NS 30 /* 33Mhz cell */ -#define IDE_SYSCLK_66_NS 15 /* 66Mhz cell */ - -/* 133Mhz cell, found in shasta. - * See comments about 100 Mhz Uninorth 2... - * Note that PIO_MASK and MDMA_MASK seem to overlap - */ -#define TR_133_PIOREG_PIO_MASK 0xff000fff -#define TR_133_PIOREG_MDMA_MASK 0x00fff800 -#define TR_133_UDMAREG_UDMA_MASK 0x0003ffff -#define TR_133_UDMAREG_UDMA_EN 0x00000001 - -/* 100Mhz cell, found in Uninorth 2. I don't have much infos about - * this one yet, it appears as a pci device (106b/0033) on uninorth - * internal PCI bus and it's clock is controlled like gem or fw. It - * appears to be an evolution of keylargo ATA4 with a timing register - * extended to 2 32bits registers and a similar DBDMA channel. Other - * registers seem to exist but I can't tell much about them. - * - * So far, I'm using pre-calculated tables for this extracted from - * the values used by the MacOS X driver. - * - * The "PIO" register controls PIO and MDMA timings, the "ULTRA" - * register controls the UDMA timings. At least, it seems bit 0 - * of this one enables UDMA vs. MDMA, and bits 4..7 are the - * cycle time in units of 10ns. Bits 8..15 are used by I don't - * know their meaning yet - */ -#define TR_100_PIOREG_PIO_MASK 0xff000fff -#define TR_100_PIOREG_MDMA_MASK 0x00fff000 -#define TR_100_UDMAREG_UDMA_MASK 0x0000ffff -#define TR_100_UDMAREG_UDMA_EN 0x00000001 - - -/* 66Mhz cell, found in KeyLargo. Can do ultra mode 0 to 2 on - * 40 connector cable and to 4 on 80 connector one. - * Clock unit is 15ns (66Mhz) - * - * 3 Values can be programmed: - * - Write data setup, which appears to match the cycle time. They - * also call it DIOW setup. - * - Ready to pause time (from spec) - * - Address setup. That one is weird. I don't see where exactly - * it fits in UDMA cycles, I got it's name from an obscure piece - * of commented out code in Darwin. They leave it to 0, we do as - * well, despite a comment that would lead to think it has a - * min value of 45ns. - * Apple also add 60ns to the write data setup (or cycle time ?) on - * reads. - */ -#define TR_66_UDMA_MASK 0xfff00000 -#define TR_66_UDMA_EN 0x00100000 /* Enable Ultra mode for DMA */ -#define TR_66_UDMA_ADDRSETUP_MASK 0xe0000000 /* Address setup */ -#define TR_66_UDMA_ADDRSETUP_SHIFT 29 -#define TR_66_UDMA_RDY2PAUS_MASK 0x1e000000 /* Ready 2 pause time */ -#define TR_66_UDMA_RDY2PAUS_SHIFT 25 -#define TR_66_UDMA_WRDATASETUP_MASK 0x01e00000 /* Write data setup time */ -#define TR_66_UDMA_WRDATASETUP_SHIFT 21 -#define TR_66_MDMA_MASK 0x000ffc00 -#define TR_66_MDMA_RECOVERY_MASK 0x000f8000 -#define TR_66_MDMA_RECOVERY_SHIFT 15 -#define TR_66_MDMA_ACCESS_MASK 0x00007c00 -#define TR_66_MDMA_ACCESS_SHIFT 10 -#define TR_66_PIO_MASK 0x000003ff -#define TR_66_PIO_RECOVERY_MASK 0x000003e0 -#define TR_66_PIO_RECOVERY_SHIFT 5 -#define TR_66_PIO_ACCESS_MASK 0x0000001f -#define TR_66_PIO_ACCESS_SHIFT 0 - -/* 33Mhz cell, found in OHare, Heathrow (& Paddington) and KeyLargo - * Can do pio & mdma modes, clock unit is 30ns (33Mhz) - * - * The access time and recovery time can be programmed. Some older - * Darwin code base limit OHare to 150ns cycle time. I decided to do - * the same here fore safety against broken old hardware ;) - * The HalfTick bit, when set, adds half a clock (15ns) to the access - * time and removes one from recovery. It's not supported on KeyLargo - * implementation afaik. The E bit appears to be set for PIO mode 0 and - * is used to reach long timings used in this mode. - */ -#define TR_33_MDMA_MASK 0x003ff800 -#define TR_33_MDMA_RECOVERY_MASK 0x001f0000 -#define TR_33_MDMA_RECOVERY_SHIFT 16 -#define TR_33_MDMA_ACCESS_MASK 0x0000f800 -#define TR_33_MDMA_ACCESS_SHIFT 11 -#define TR_33_MDMA_HALFTICK 0x00200000 -#define TR_33_PIO_MASK 0x000007ff -#define TR_33_PIO_E 0x00000400 -#define TR_33_PIO_RECOVERY_MASK 0x000003e0 -#define TR_33_PIO_RECOVERY_SHIFT 5 -#define TR_33_PIO_ACCESS_MASK 0x0000001f -#define TR_33_PIO_ACCESS_SHIFT 0 - -/* - * Interrupt register definitions - */ -#define IDE_INTR_DMA 0x80000000 -#define IDE_INTR_DEVICE 0x40000000 - -/* - * FCR Register on Kauai. Not sure what bit 0x4 is ... - */ -#define KAUAI_FCR_UATA_MAGIC 0x00000004 -#define KAUAI_FCR_UATA_RESET_N 0x00000002 -#define KAUAI_FCR_UATA_ENABLE 0x00000001 - -/* Rounded Multiword DMA timings - * - * I gave up finding a generic formula for all controller - * types and instead, built tables based on timing values - * used by Apple in Darwin's implementation. - */ -struct mdma_timings_t { - int accessTime; - int recoveryTime; - int cycleTime; -}; - -struct mdma_timings_t mdma_timings_33[] = -{ - { 240, 240, 480 }, - { 180, 180, 360 }, - { 135, 135, 270 }, - { 120, 120, 240 }, - { 105, 105, 210 }, - { 90, 90, 180 }, - { 75, 75, 150 }, - { 75, 45, 120 }, - { 0, 0, 0 } -}; - -struct mdma_timings_t mdma_timings_33k[] = -{ - { 240, 240, 480 }, - { 180, 180, 360 }, - { 150, 150, 300 }, - { 120, 120, 240 }, - { 90, 120, 210 }, - { 90, 90, 180 }, - { 90, 60, 150 }, - { 90, 30, 120 }, - { 0, 0, 0 } -}; - -struct mdma_timings_t mdma_timings_66[] = -{ - { 240, 240, 480 }, - { 180, 180, 360 }, - { 135, 135, 270 }, - { 120, 120, 240 }, - { 105, 105, 210 }, - { 90, 90, 180 }, - { 90, 75, 165 }, - { 75, 45, 120 }, - { 0, 0, 0 } -}; - -/* KeyLargo ATA-4 Ultra DMA timings (rounded) */ -struct { - int addrSetup; /* ??? */ - int rdy2pause; - int wrDataSetup; -} kl66_udma_timings[] = -{ - { 0, 180, 120 }, /* Mode 0 */ - { 0, 150, 90 }, /* 1 */ - { 0, 120, 60 }, /* 2 */ - { 0, 90, 45 }, /* 3 */ - { 0, 90, 30 } /* 4 */ -}; - -/* UniNorth 2 ATA/100 timings */ -struct kauai_timing { - int cycle_time; - u32 timing_reg; -}; - -static struct kauai_timing kauai_pio_timings[] = -{ - { 930 , 0x08000fff }, - { 600 , 0x08000a92 }, - { 383 , 0x0800060f }, - { 360 , 0x08000492 }, - { 330 , 0x0800048f }, - { 300 , 0x080003cf }, - { 270 , 0x080003cc }, - { 240 , 0x0800038b }, - { 239 , 0x0800030c }, - { 180 , 0x05000249 }, - { 120 , 0x04000148 }, - { 0 , 0 }, -}; - -static struct kauai_timing kauai_mdma_timings[] = -{ - { 1260 , 0x00fff000 }, - { 480 , 0x00618000 }, - { 360 , 0x00492000 }, - { 270 , 0x0038e000 }, - { 240 , 0x0030c000 }, - { 210 , 0x002cb000 }, - { 180 , 0x00249000 }, - { 150 , 0x00209000 }, - { 120 , 0x00148000 }, - { 0 , 0 }, -}; - -static struct kauai_timing kauai_udma_timings[] = -{ - { 120 , 0x000070c0 }, - { 90 , 0x00005d80 }, - { 60 , 0x00004a60 }, - { 45 , 0x00003a50 }, - { 30 , 0x00002a30 }, - { 20 , 0x00002921 }, - { 0 , 0 }, -}; - -static struct kauai_timing shasta_pio_timings[] = -{ - { 930 , 0x08000fff }, - { 600 , 0x0A000c97 }, - { 383 , 0x07000712 }, - { 360 , 0x040003cd }, - { 330 , 0x040003cd }, - { 300 , 0x040003cd }, - { 270 , 0x040003cd }, - { 240 , 0x040003cd }, - { 239 , 0x040003cd }, - { 180 , 0x0400028b }, - { 120 , 0x0400010a }, - { 0 , 0 }, -}; - -static struct kauai_timing shasta_mdma_timings[] = -{ - { 1260 , 0x00fff000 }, - { 480 , 0x00820800 }, - { 360 , 0x00820800 }, - { 270 , 0x00820800 }, - { 240 , 0x00820800 }, - { 210 , 0x00820800 }, - { 180 , 0x00820800 }, - { 150 , 0x0028b000 }, - { 120 , 0x001ca000 }, - { 0 , 0 }, -}; - -static struct kauai_timing shasta_udma133_timings[] = -{ - { 120 , 0x00035901, }, - { 90 , 0x000348b1, }, - { 60 , 0x00033881, }, - { 45 , 0x00033861, }, - { 30 , 0x00033841, }, - { 20 , 0x00033031, }, - { 15 , 0x00033021, }, - { 0 , 0 }, -}; - - -static inline u32 -kauai_lookup_timing(struct kauai_timing* table, int cycle_time) -{ - int i; - - for (i=0; table[i].cycle_time; i++) - if (cycle_time > table[i+1].cycle_time) - return table[i].timing_reg; - BUG(); - return 0; -} - -/* allow up to 256 DBDMA commands per xfer */ -#define MAX_DCMDS 256 - -/* - * Wait 1s for disk to answer on IDE bus after a hard reset - * of the device (via GPIO/FCR). - * - * Some devices seem to "pollute" the bus even after dropping - * the BSY bit (typically some combo drives slave on the UDMA - * bus) after a hard reset. Since we hard reset all drives on - * KeyLargo ATA66, we have to keep that delay around. I may end - * up not hard resetting anymore on these and keep the delay only - * for older interfaces instead (we have to reset when coming - * from MacOS...) --BenH. - */ -#define IDE_WAKEUP_DELAY (1*HZ) - -static int pmac_ide_init_dma(ide_hwif_t *, const struct ide_port_info *); - -#define PMAC_IDE_REG(x) \ - ((void __iomem *)((drive)->hwif->io_ports.data_addr + (x))) - -/* - * Apply the timings of the proper unit (master/slave) to the shared - * timing register when selecting that unit. This version is for - * ASICs with a single timing register - */ -static void pmac_ide_apply_timings(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - - if (drive->dn & 1) - writel(pmif->timings[1], PMAC_IDE_REG(IDE_TIMING_CONFIG)); - else - writel(pmif->timings[0], PMAC_IDE_REG(IDE_TIMING_CONFIG)); - (void)readl(PMAC_IDE_REG(IDE_TIMING_CONFIG)); -} - -/* - * Apply the timings of the proper unit (master/slave) to the shared - * timing register when selecting that unit. This version is for - * ASICs with a dual timing register (Kauai) - */ -static void pmac_ide_kauai_apply_timings(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - - if (drive->dn & 1) { - writel(pmif->timings[1], PMAC_IDE_REG(IDE_KAUAI_PIO_CONFIG)); - writel(pmif->timings[3], PMAC_IDE_REG(IDE_KAUAI_ULTRA_CONFIG)); - } else { - writel(pmif->timings[0], PMAC_IDE_REG(IDE_KAUAI_PIO_CONFIG)); - writel(pmif->timings[2], PMAC_IDE_REG(IDE_KAUAI_ULTRA_CONFIG)); - } - (void)readl(PMAC_IDE_REG(IDE_KAUAI_PIO_CONFIG)); -} - -/* - * Force an update of controller timing values for a given drive - */ -static void -pmac_ide_do_update_timings(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - - if (pmif->kind == controller_sh_ata6 || - pmif->kind == controller_un_ata6 || - pmif->kind == controller_k2_ata6) - pmac_ide_kauai_apply_timings(drive); - else - pmac_ide_apply_timings(drive); -} - -static void pmac_dev_select(ide_drive_t *drive) -{ - pmac_ide_apply_timings(drive); - - writeb(drive->select | ATA_DEVICE_OBS, - (void __iomem *)drive->hwif->io_ports.device_addr); -} - -static void pmac_kauai_dev_select(ide_drive_t *drive) -{ - pmac_ide_kauai_apply_timings(drive); - - writeb(drive->select | ATA_DEVICE_OBS, - (void __iomem *)drive->hwif->io_ports.device_addr); -} - -static void pmac_exec_command(ide_hwif_t *hwif, u8 cmd) -{ - writeb(cmd, (void __iomem *)hwif->io_ports.command_addr); - (void)readl((void __iomem *)(hwif->io_ports.data_addr - + IDE_TIMING_CONFIG)); -} - -static void pmac_write_devctl(ide_hwif_t *hwif, u8 ctl) -{ - writeb(ctl, (void __iomem *)hwif->io_ports.ctl_addr); - (void)readl((void __iomem *)(hwif->io_ports.data_addr - + IDE_TIMING_CONFIG)); -} - -/* - * Old tuning functions (called on hdparm -p), sets up drive PIO timings - */ -static void pmac_ide_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - const u8 pio = drive->pio_mode - XFER_PIO_0; - struct ide_timing *tim = ide_timing_find_mode(XFER_PIO_0 + pio); - u32 *timings, t; - unsigned accessTicks, recTicks; - unsigned accessTime, recTime; - unsigned int cycle_time; - - /* which drive is it ? */ - timings = &pmif->timings[drive->dn & 1]; - t = *timings; - - cycle_time = ide_pio_cycle_time(drive, pio); - - switch (pmif->kind) { - case controller_sh_ata6: { - /* 133Mhz cell */ - u32 tr = kauai_lookup_timing(shasta_pio_timings, cycle_time); - t = (t & ~TR_133_PIOREG_PIO_MASK) | tr; - break; - } - case controller_un_ata6: - case controller_k2_ata6: { - /* 100Mhz cell */ - u32 tr = kauai_lookup_timing(kauai_pio_timings, cycle_time); - t = (t & ~TR_100_PIOREG_PIO_MASK) | tr; - break; - } - case controller_kl_ata4: - /* 66Mhz cell */ - recTime = cycle_time - tim->active - tim->setup; - recTime = max(recTime, 150U); - accessTime = tim->active; - accessTime = max(accessTime, 150U); - accessTicks = SYSCLK_TICKS_66(accessTime); - accessTicks = min(accessTicks, 0x1fU); - recTicks = SYSCLK_TICKS_66(recTime); - recTicks = min(recTicks, 0x1fU); - t = (t & ~TR_66_PIO_MASK) | - (accessTicks << TR_66_PIO_ACCESS_SHIFT) | - (recTicks << TR_66_PIO_RECOVERY_SHIFT); - break; - default: { - /* 33Mhz cell */ - int ebit = 0; - recTime = cycle_time - tim->active - tim->setup; - recTime = max(recTime, 150U); - accessTime = tim->active; - accessTime = max(accessTime, 150U); - accessTicks = SYSCLK_TICKS(accessTime); - accessTicks = min(accessTicks, 0x1fU); - accessTicks = max(accessTicks, 4U); - recTicks = SYSCLK_TICKS(recTime); - recTicks = min(recTicks, 0x1fU); - recTicks = max(recTicks, 5U) - 4; - if (recTicks > 9) { - recTicks--; /* guess, but it's only for PIO0, so... */ - ebit = 1; - } - t = (t & ~TR_33_PIO_MASK) | - (accessTicks << TR_33_PIO_ACCESS_SHIFT) | - (recTicks << TR_33_PIO_RECOVERY_SHIFT); - if (ebit) - t |= TR_33_PIO_E; - break; - } - } - -#ifdef IDE_PMAC_DEBUG - printk(KERN_ERR "%s: Set PIO timing for mode %d, reg: 0x%08x\n", - drive->name, pio, *timings); -#endif - - *timings = t; - pmac_ide_do_update_timings(drive); -} - -/* - * Calculate KeyLargo ATA/66 UDMA timings - */ -static int -set_timings_udma_ata4(u32 *timings, u8 speed) -{ - unsigned rdyToPauseTicks, wrDataSetupTicks, addrTicks; - - if (speed > XFER_UDMA_4) - return 1; - - rdyToPauseTicks = SYSCLK_TICKS_66(kl66_udma_timings[speed & 0xf].rdy2pause); - wrDataSetupTicks = SYSCLK_TICKS_66(kl66_udma_timings[speed & 0xf].wrDataSetup); - addrTicks = SYSCLK_TICKS_66(kl66_udma_timings[speed & 0xf].addrSetup); - - *timings = ((*timings) & ~(TR_66_UDMA_MASK | TR_66_MDMA_MASK)) | - (wrDataSetupTicks << TR_66_UDMA_WRDATASETUP_SHIFT) | - (rdyToPauseTicks << TR_66_UDMA_RDY2PAUS_SHIFT) | - (addrTicks <<TR_66_UDMA_ADDRSETUP_SHIFT) | - TR_66_UDMA_EN; -#ifdef IDE_PMAC_DEBUG - printk(KERN_ERR "ide_pmac: Set UDMA timing for mode %d, reg: 0x%08x\n", - speed & 0xf, *timings); -#endif - - return 0; -} - -/* - * Calculate Kauai ATA/100 UDMA timings - */ -static int -set_timings_udma_ata6(u32 *pio_timings, u32 *ultra_timings, u8 speed) -{ - struct ide_timing *t = ide_timing_find_mode(speed); - u32 tr; - - if (speed > XFER_UDMA_5 || t == NULL) - return 1; - tr = kauai_lookup_timing(kauai_udma_timings, (int)t->udma); - *ultra_timings = ((*ultra_timings) & ~TR_100_UDMAREG_UDMA_MASK) | tr; - *ultra_timings = (*ultra_timings) | TR_100_UDMAREG_UDMA_EN; - - return 0; -} - -/* - * Calculate Shasta ATA/133 UDMA timings - */ -static int -set_timings_udma_shasta(u32 *pio_timings, u32 *ultra_timings, u8 speed) -{ - struct ide_timing *t = ide_timing_find_mode(speed); - u32 tr; - - if (speed > XFER_UDMA_6 || t == NULL) - return 1; - tr = kauai_lookup_timing(shasta_udma133_timings, (int)t->udma); - *ultra_timings = ((*ultra_timings) & ~TR_133_UDMAREG_UDMA_MASK) | tr; - *ultra_timings = (*ultra_timings) | TR_133_UDMAREG_UDMA_EN; - - return 0; -} - -/* - * Calculate MDMA timings for all cells - */ -static void -set_timings_mdma(ide_drive_t *drive, int intf_type, u32 *timings, u32 *timings2, - u8 speed) -{ - u16 *id = drive->id; - int cycleTime, accessTime = 0, recTime = 0; - unsigned accessTicks, recTicks; - struct mdma_timings_t* tm = NULL; - int i; - - /* Get default cycle time for mode */ - switch(speed & 0xf) { - case 0: cycleTime = 480; break; - case 1: cycleTime = 150; break; - case 2: cycleTime = 120; break; - default: - BUG(); - break; - } - - /* Check if drive provides explicit DMA cycle time */ - if ((id[ATA_ID_FIELD_VALID] & 2) && id[ATA_ID_EIDE_DMA_TIME]) - cycleTime = max_t(int, id[ATA_ID_EIDE_DMA_TIME], cycleTime); - - /* OHare limits according to some old Apple sources */ - if ((intf_type == controller_ohare) && (cycleTime < 150)) - cycleTime = 150; - /* Get the proper timing array for this controller */ - switch(intf_type) { - case controller_sh_ata6: - case controller_un_ata6: - case controller_k2_ata6: - break; - case controller_kl_ata4: - tm = mdma_timings_66; - break; - case controller_kl_ata3: - tm = mdma_timings_33k; - break; - default: - tm = mdma_timings_33; - break; - } - if (tm != NULL) { - /* Lookup matching access & recovery times */ - i = -1; - for (;;) { - if (tm[i+1].cycleTime < cycleTime) - break; - i++; - } - cycleTime = tm[i].cycleTime; - accessTime = tm[i].accessTime; - recTime = tm[i].recoveryTime; - -#ifdef IDE_PMAC_DEBUG - printk(KERN_ERR "%s: MDMA, cycleTime: %d, accessTime: %d, recTime: %d\n", - drive->name, cycleTime, accessTime, recTime); -#endif - } - switch(intf_type) { - case controller_sh_ata6: { - /* 133Mhz cell */ - u32 tr = kauai_lookup_timing(shasta_mdma_timings, cycleTime); - *timings = ((*timings) & ~TR_133_PIOREG_MDMA_MASK) | tr; - *timings2 = (*timings2) & ~TR_133_UDMAREG_UDMA_EN; - } - break; - case controller_un_ata6: - case controller_k2_ata6: { - /* 100Mhz cell */ - u32 tr = kauai_lookup_timing(kauai_mdma_timings, cycleTime); - *timings = ((*timings) & ~TR_100_PIOREG_MDMA_MASK) | tr; - *timings2 = (*timings2) & ~TR_100_UDMAREG_UDMA_EN; - } - break; - case controller_kl_ata4: - /* 66Mhz cell */ - accessTicks = SYSCLK_TICKS_66(accessTime); - accessTicks = min(accessTicks, 0x1fU); - accessTicks = max(accessTicks, 0x1U); - recTicks = SYSCLK_TICKS_66(recTime); - recTicks = min(recTicks, 0x1fU); - recTicks = max(recTicks, 0x3U); - /* Clear out mdma bits and disable udma */ - *timings = ((*timings) & ~(TR_66_MDMA_MASK | TR_66_UDMA_MASK)) | - (accessTicks << TR_66_MDMA_ACCESS_SHIFT) | - (recTicks << TR_66_MDMA_RECOVERY_SHIFT); - break; - case controller_kl_ata3: - /* 33Mhz cell on KeyLargo */ - accessTicks = SYSCLK_TICKS(accessTime); - accessTicks = max(accessTicks, 1U); - accessTicks = min(accessTicks, 0x1fU); - accessTime = accessTicks * IDE_SYSCLK_NS; - recTicks = SYSCLK_TICKS(recTime); - recTicks = max(recTicks, 1U); - recTicks = min(recTicks, 0x1fU); - *timings = ((*timings) & ~TR_33_MDMA_MASK) | - (accessTicks << TR_33_MDMA_ACCESS_SHIFT) | - (recTicks << TR_33_MDMA_RECOVERY_SHIFT); - break; - default: { - /* 33Mhz cell on others */ - int halfTick = 0; - int origAccessTime = accessTime; - int origRecTime = recTime; - - accessTicks = SYSCLK_TICKS(accessTime); - accessTicks = max(accessTicks, 1U); - accessTicks = min(accessTicks, 0x1fU); - accessTime = accessTicks * IDE_SYSCLK_NS; - recTicks = SYSCLK_TICKS(recTime); - recTicks = max(recTicks, 2U) - 1; - recTicks = min(recTicks, 0x1fU); - recTime = (recTicks + 1) * IDE_SYSCLK_NS; - if ((accessTicks > 1) && - ((accessTime - IDE_SYSCLK_NS/2) >= origAccessTime) && - ((recTime - IDE_SYSCLK_NS/2) >= origRecTime)) { - halfTick = 1; - accessTicks--; - } - *timings = ((*timings) & ~TR_33_MDMA_MASK) | - (accessTicks << TR_33_MDMA_ACCESS_SHIFT) | - (recTicks << TR_33_MDMA_RECOVERY_SHIFT); - if (halfTick) - *timings |= TR_33_MDMA_HALFTICK; - } - } -#ifdef IDE_PMAC_DEBUG - printk(KERN_ERR "%s: Set MDMA timing for mode %d, reg: 0x%08x\n", - drive->name, speed & 0xf, *timings); -#endif -} - -static void pmac_ide_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - int ret = 0; - u32 *timings, *timings2, tl[2]; - u8 unit = drive->dn & 1; - const u8 speed = drive->dma_mode; - - timings = &pmif->timings[unit]; - timings2 = &pmif->timings[unit+2]; - - /* Copy timings to local image */ - tl[0] = *timings; - tl[1] = *timings2; - - if (speed >= XFER_UDMA_0) { - if (pmif->kind == controller_kl_ata4) - ret = set_timings_udma_ata4(&tl[0], speed); - else if (pmif->kind == controller_un_ata6 - || pmif->kind == controller_k2_ata6) - ret = set_timings_udma_ata6(&tl[0], &tl[1], speed); - else if (pmif->kind == controller_sh_ata6) - ret = set_timings_udma_shasta(&tl[0], &tl[1], speed); - else - ret = -1; - } else - set_timings_mdma(drive, pmif->kind, &tl[0], &tl[1], speed); - - if (ret) - return; - - /* Apply timings to controller */ - *timings = tl[0]; - *timings2 = tl[1]; - - pmac_ide_do_update_timings(drive); -} - -/* - * Blast some well known "safe" values to the timing registers at init or - * wakeup from sleep time, before we do real calculation - */ -static void -sanitize_timings(pmac_ide_hwif_t *pmif) -{ - unsigned int value, value2 = 0; - - switch(pmif->kind) { - case controller_sh_ata6: - value = 0x0a820c97; - value2 = 0x00033031; - break; - case controller_un_ata6: - case controller_k2_ata6: - value = 0x08618a92; - value2 = 0x00002921; - break; - case controller_kl_ata4: - value = 0x0008438c; - break; - case controller_kl_ata3: - value = 0x00084526; - break; - case controller_heathrow: - case controller_ohare: - default: - value = 0x00074526; - break; - } - pmif->timings[0] = pmif->timings[1] = value; - pmif->timings[2] = pmif->timings[3] = value2; -} - -static int on_media_bay(pmac_ide_hwif_t *pmif) -{ - return pmif->mdev && pmif->mdev->media_bay != NULL; -} - -/* Suspend call back, should be called after the child devices - * have actually been suspended - */ -static int pmac_ide_do_suspend(pmac_ide_hwif_t *pmif) -{ - /* We clear the timings */ - pmif->timings[0] = 0; - pmif->timings[1] = 0; - - disable_irq(pmif->irq); - - /* The media bay will handle itself just fine */ - if (on_media_bay(pmif)) - return 0; - - /* Kauai has bus control FCRs directly here */ - if (pmif->kauai_fcr) { - u32 fcr = readl(pmif->kauai_fcr); - fcr &= ~(KAUAI_FCR_UATA_RESET_N | KAUAI_FCR_UATA_ENABLE); - writel(fcr, pmif->kauai_fcr); - } - - /* Disable the bus on older machines and the cell on kauai */ - ppc_md.feature_call(PMAC_FTR_IDE_ENABLE, pmif->node, pmif->aapl_bus_id, - 0); - - return 0; -} - -/* Resume call back, should be called before the child devices - * are resumed - */ -static int pmac_ide_do_resume(pmac_ide_hwif_t *pmif) -{ - /* Hard reset & re-enable controller (do we really need to reset ? -BenH) */ - if (!on_media_bay(pmif)) { - ppc_md.feature_call(PMAC_FTR_IDE_RESET, pmif->node, pmif->aapl_bus_id, 1); - ppc_md.feature_call(PMAC_FTR_IDE_ENABLE, pmif->node, pmif->aapl_bus_id, 1); - msleep(10); - ppc_md.feature_call(PMAC_FTR_IDE_RESET, pmif->node, pmif->aapl_bus_id, 0); - - /* Kauai has it different */ - if (pmif->kauai_fcr) { - u32 fcr = readl(pmif->kauai_fcr); - fcr |= KAUAI_FCR_UATA_RESET_N | KAUAI_FCR_UATA_ENABLE; - writel(fcr, pmif->kauai_fcr); - } - - msleep(jiffies_to_msecs(IDE_WAKEUP_DELAY)); - } - - /* Sanitize drive timings */ - sanitize_timings(pmif); - - enable_irq(pmif->irq); - - return 0; -} - -static u8 pmac_ide_cable_detect(ide_hwif_t *hwif) -{ - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - struct device_node *np = pmif->node; - const char *cable = of_get_property(np, "cable-type", NULL); - struct device_node *root = of_find_node_by_path("/"); - const char *model = of_get_property(root, "model", NULL); - - of_node_put(root); - /* Get cable type from device-tree. */ - if (cable && !strncmp(cable, "80-", 3)) { - /* Some drives fail to detect 80c cable in PowerBook */ - /* These machine use proprietary short IDE cable anyway */ - if (!strncmp(model, "PowerBook", 9)) - return ATA_CBL_PATA40_SHORT; - else - return ATA_CBL_PATA80; - } - - /* - * G5's seem to have incorrect cable type in device-tree. - * Let's assume they have a 80 conductor cable, this seem - * to be always the case unless the user mucked around. - */ - if (of_device_is_compatible(np, "K2-UATA") || - of_device_is_compatible(np, "shasta-ata")) - return ATA_CBL_PATA80; - - return ATA_CBL_PATA40; -} - -static void pmac_ide_init_dev(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - - if (on_media_bay(pmif)) { - if (check_media_bay(pmif->mdev->media_bay) == MB_CD) { - drive->dev_flags &= ~IDE_DFLAG_NOPROBE; - return; - } - drive->dev_flags |= IDE_DFLAG_NOPROBE; - } -} - -static const struct ide_tp_ops pmac_tp_ops = { - .exec_command = pmac_exec_command, - .read_status = ide_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = pmac_write_devctl, - - .dev_select = pmac_dev_select, - .tf_load = ide_tf_load, - .tf_read = ide_tf_read, - - .input_data = ide_input_data, - .output_data = ide_output_data, -}; - -static const struct ide_tp_ops pmac_ata6_tp_ops = { - .exec_command = pmac_exec_command, - .read_status = ide_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = pmac_write_devctl, - - .dev_select = pmac_kauai_dev_select, - .tf_load = ide_tf_load, - .tf_read = ide_tf_read, - - .input_data = ide_input_data, - .output_data = ide_output_data, -}; - -static const struct ide_port_ops pmac_ide_ata4_port_ops = { - .init_dev = pmac_ide_init_dev, - .set_pio_mode = pmac_ide_set_pio_mode, - .set_dma_mode = pmac_ide_set_dma_mode, - .cable_detect = pmac_ide_cable_detect, -}; - -static const struct ide_port_ops pmac_ide_port_ops = { - .init_dev = pmac_ide_init_dev, - .set_pio_mode = pmac_ide_set_pio_mode, - .set_dma_mode = pmac_ide_set_dma_mode, -}; - -static const struct ide_dma_ops pmac_dma_ops; - -static const struct ide_port_info pmac_port_info = { - .name = DRV_NAME, - .init_dma = pmac_ide_init_dma, - .chipset = ide_pmac, - .tp_ops = &pmac_tp_ops, - .port_ops = &pmac_ide_port_ops, - .dma_ops = &pmac_dma_ops, - .host_flags = IDE_HFLAG_SET_PIO_MODE_KEEP_DMA | - IDE_HFLAG_POST_SET_MODE | - IDE_HFLAG_MMIO | - IDE_HFLAG_UNMASK_IRQS, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, -}; - -/* - * Setup, register & probe an IDE channel driven by this driver, this is - * called by one of the 2 probe functions (macio or PCI). - */ -static int pmac_ide_setup_device(pmac_ide_hwif_t *pmif, struct ide_hw *hw) -{ - struct device_node *np = pmif->node; - const int *bidp; - struct ide_host *host; - struct ide_hw *hws[] = { hw }; - struct ide_port_info d = pmac_port_info; - int rc; - - pmif->broken_dma = pmif->broken_dma_warn = 0; - if (of_device_is_compatible(np, "shasta-ata")) { - pmif->kind = controller_sh_ata6; - d.tp_ops = &pmac_ata6_tp_ops; - d.port_ops = &pmac_ide_ata4_port_ops; - d.udma_mask = ATA_UDMA6; - } else if (of_device_is_compatible(np, "kauai-ata")) { - pmif->kind = controller_un_ata6; - d.tp_ops = &pmac_ata6_tp_ops; - d.port_ops = &pmac_ide_ata4_port_ops; - d.udma_mask = ATA_UDMA5; - } else if (of_device_is_compatible(np, "K2-UATA")) { - pmif->kind = controller_k2_ata6; - d.tp_ops = &pmac_ata6_tp_ops; - d.port_ops = &pmac_ide_ata4_port_ops; - d.udma_mask = ATA_UDMA5; - } else if (of_device_is_compatible(np, "keylargo-ata")) { - if (of_node_name_eq(np, "ata-4")) { - pmif->kind = controller_kl_ata4; - d.port_ops = &pmac_ide_ata4_port_ops; - d.udma_mask = ATA_UDMA4; - } else - pmif->kind = controller_kl_ata3; - } else if (of_device_is_compatible(np, "heathrow-ata")) { - pmif->kind = controller_heathrow; - } else { - pmif->kind = controller_ohare; - pmif->broken_dma = 1; - } - - bidp = of_get_property(np, "AAPL,bus-id", NULL); - pmif->aapl_bus_id = bidp ? *bidp : 0; - - /* On Kauai-type controllers, we make sure the FCR is correct */ - if (pmif->kauai_fcr) - writel(KAUAI_FCR_UATA_MAGIC | - KAUAI_FCR_UATA_RESET_N | - KAUAI_FCR_UATA_ENABLE, pmif->kauai_fcr); - - /* Make sure we have sane timings */ - sanitize_timings(pmif); - - /* If we are on a media bay, wait for it to settle and lock it */ - if (pmif->mdev) - lock_media_bay(pmif->mdev->media_bay); - - host = ide_host_alloc(&d, hws, 1); - if (host == NULL) { - rc = -ENOMEM; - goto bail; - } - pmif->hwif = host->ports[0]; - - if (on_media_bay(pmif)) { - /* Fixup bus ID for media bay */ - if (!bidp) - pmif->aapl_bus_id = 1; - } else if (pmif->kind == controller_ohare) { - /* The code below is having trouble on some ohare machines - * (timing related ?). Until I can put my hand on one of these - * units, I keep the old way - */ - ppc_md.feature_call(PMAC_FTR_IDE_ENABLE, np, 0, 1); - } else { - /* This is necessary to enable IDE when net-booting */ - ppc_md.feature_call(PMAC_FTR_IDE_RESET, np, pmif->aapl_bus_id, 1); - ppc_md.feature_call(PMAC_FTR_IDE_ENABLE, np, pmif->aapl_bus_id, 1); - msleep(10); - ppc_md.feature_call(PMAC_FTR_IDE_RESET, np, pmif->aapl_bus_id, 0); - msleep(jiffies_to_msecs(IDE_WAKEUP_DELAY)); - } - - printk(KERN_INFO DRV_NAME ": Found Apple %s controller (%s), " - "bus ID %d%s, irq %d\n", model_name[pmif->kind], - pmif->mdev ? "macio" : "PCI", pmif->aapl_bus_id, - on_media_bay(pmif) ? " (mediabay)" : "", hw->irq); - - rc = ide_host_register(host, &d, hws); - if (rc) - pmif->hwif = NULL; - - if (pmif->mdev) - unlock_media_bay(pmif->mdev->media_bay); - - bail: - if (rc && host) - ide_host_free(host); - return rc; -} - -static void pmac_ide_init_ports(struct ide_hw *hw, unsigned long base) -{ - int i; - - for (i = 0; i < 8; ++i) - hw->io_ports_array[i] = base + i * 0x10; - - hw->io_ports.ctl_addr = base + 0x160; -} - -/* - * Attach to a macio probed interface - */ -static int pmac_ide_macio_attach(struct macio_dev *mdev, - const struct of_device_id *match) -{ - void __iomem *base; - unsigned long regbase; - pmac_ide_hwif_t *pmif; - int irq, rc; - struct ide_hw hw; - - pmif = kzalloc(sizeof(*pmif), GFP_KERNEL); - if (pmif == NULL) - return -ENOMEM; - - if (macio_resource_count(mdev) == 0) { - printk(KERN_WARNING "ide-pmac: no address for %pOF\n", - mdev->ofdev.dev.of_node); - rc = -ENXIO; - goto out_free_pmif; - } - - /* Request memory resource for IO ports */ - if (macio_request_resource(mdev, 0, "ide-pmac (ports)")) { - printk(KERN_ERR "ide-pmac: can't request MMIO resource for " - "%pOF!\n", mdev->ofdev.dev.of_node); - rc = -EBUSY; - goto out_free_pmif; - } - - /* XXX This is bogus. Should be fixed in the registry by checking - * the kind of host interrupt controller, a bit like gatwick - * fixes in irq.c. That works well enough for the single case - * where that happens though... - */ - if (macio_irq_count(mdev) == 0) { - printk(KERN_WARNING "ide-pmac: no intrs for device %pOF, using " - "13\n", mdev->ofdev.dev.of_node); - irq = irq_create_mapping(NULL, 13); - } else - irq = macio_irq(mdev, 0); - - base = ioremap(macio_resource_start(mdev, 0), 0x400); - regbase = (unsigned long) base; - - pmif->mdev = mdev; - pmif->node = mdev->ofdev.dev.of_node; - pmif->regbase = regbase; - pmif->irq = irq; - pmif->kauai_fcr = NULL; - - if (macio_resource_count(mdev) >= 2) { - if (macio_request_resource(mdev, 1, "ide-pmac (dma)")) - printk(KERN_WARNING "ide-pmac: can't request DMA " - "resource for %pOF!\n", - mdev->ofdev.dev.of_node); - else - pmif->dma_regs = ioremap(macio_resource_start(mdev, 1), 0x1000); - } else - pmif->dma_regs = NULL; - - dev_set_drvdata(&mdev->ofdev.dev, pmif); - - memset(&hw, 0, sizeof(hw)); - pmac_ide_init_ports(&hw, pmif->regbase); - hw.irq = irq; - hw.dev = &mdev->bus->pdev->dev; - hw.parent = &mdev->ofdev.dev; - - rc = pmac_ide_setup_device(pmif, &hw); - if (rc != 0) { - /* The inteface is released to the common IDE layer */ - dev_set_drvdata(&mdev->ofdev.dev, NULL); - iounmap(base); - if (pmif->dma_regs) { - iounmap(pmif->dma_regs); - macio_release_resource(mdev, 1); - } - macio_release_resource(mdev, 0); - kfree(pmif); - } - - return rc; - -out_free_pmif: - kfree(pmif); - return rc; -} - -static int -pmac_ide_macio_suspend(struct macio_dev *mdev, pm_message_t mesg) -{ - pmac_ide_hwif_t *pmif = dev_get_drvdata(&mdev->ofdev.dev); - int rc = 0; - - if (mesg.event != mdev->ofdev.dev.power.power_state.event - && (mesg.event & PM_EVENT_SLEEP)) { - rc = pmac_ide_do_suspend(pmif); - if (rc == 0) - mdev->ofdev.dev.power.power_state = mesg; - } - - return rc; -} - -static int -pmac_ide_macio_resume(struct macio_dev *mdev) -{ - pmac_ide_hwif_t *pmif = dev_get_drvdata(&mdev->ofdev.dev); - int rc = 0; - - if (mdev->ofdev.dev.power.power_state.event != PM_EVENT_ON) { - rc = pmac_ide_do_resume(pmif); - if (rc == 0) - mdev->ofdev.dev.power.power_state = PMSG_ON; - } - - return rc; -} - -/* - * Attach to a PCI probed interface - */ -static int pmac_ide_pci_attach(struct pci_dev *pdev, - const struct pci_device_id *id) -{ - struct device_node *np; - pmac_ide_hwif_t *pmif; - void __iomem *base; - unsigned long rbase, rlen; - int rc; - struct ide_hw hw; - - np = pci_device_to_OF_node(pdev); - if (np == NULL) { - printk(KERN_ERR "ide-pmac: cannot find MacIO node for Kauai ATA interface\n"); - return -ENODEV; - } - - pmif = kzalloc(sizeof(*pmif), GFP_KERNEL); - if (pmif == NULL) - return -ENOMEM; - - if (pci_enable_device(pdev)) { - printk(KERN_WARNING "ide-pmac: Can't enable PCI device for " - "%pOF\n", np); - rc = -ENXIO; - goto out_free_pmif; - } - pci_set_master(pdev); - - if (pci_request_regions(pdev, "Kauai ATA")) { - printk(KERN_ERR "ide-pmac: Cannot obtain PCI resources for " - "%pOF\n", np); - rc = -ENXIO; - goto out_free_pmif; - } - - pmif->mdev = NULL; - pmif->node = np; - - rbase = pci_resource_start(pdev, 0); - rlen = pci_resource_len(pdev, 0); - - base = ioremap(rbase, rlen); - pmif->regbase = (unsigned long) base + 0x2000; - pmif->dma_regs = base + 0x1000; - pmif->kauai_fcr = base; - pmif->irq = pdev->irq; - - pci_set_drvdata(pdev, pmif); - - memset(&hw, 0, sizeof(hw)); - pmac_ide_init_ports(&hw, pmif->regbase); - hw.irq = pdev->irq; - hw.dev = &pdev->dev; - - rc = pmac_ide_setup_device(pmif, &hw); - if (rc != 0) { - /* The inteface is released to the common IDE layer */ - iounmap(base); - pci_release_regions(pdev); - kfree(pmif); - } - - return rc; - -out_free_pmif: - kfree(pmif); - return rc; -} - -static int -pmac_ide_pci_suspend(struct pci_dev *pdev, pm_message_t mesg) -{ - pmac_ide_hwif_t *pmif = pci_get_drvdata(pdev); - int rc = 0; - - if (mesg.event != pdev->dev.power.power_state.event - && (mesg.event & PM_EVENT_SLEEP)) { - rc = pmac_ide_do_suspend(pmif); - if (rc == 0) - pdev->dev.power.power_state = mesg; - } - - return rc; -} - -static int -pmac_ide_pci_resume(struct pci_dev *pdev) -{ - pmac_ide_hwif_t *pmif = pci_get_drvdata(pdev); - int rc = 0; - - if (pdev->dev.power.power_state.event != PM_EVENT_ON) { - rc = pmac_ide_do_resume(pmif); - if (rc == 0) - pdev->dev.power.power_state = PMSG_ON; - } - - return rc; -} - -#ifdef CONFIG_PMAC_MEDIABAY -static void pmac_ide_macio_mb_event(struct macio_dev* mdev, int mb_state) -{ - pmac_ide_hwif_t *pmif = dev_get_drvdata(&mdev->ofdev.dev); - - switch(mb_state) { - case MB_CD: - if (!pmif->hwif->present) - ide_port_scan(pmif->hwif); - break; - default: - if (pmif->hwif->present) - ide_port_unregister_devices(pmif->hwif); - } -} -#endif /* CONFIG_PMAC_MEDIABAY */ - - -static struct of_device_id pmac_ide_macio_match[] = -{ - { - .name = "IDE", - }, - { - .name = "ATA", - }, - { - .type = "ide", - }, - { - .type = "ata", - }, - {}, -}; - -static struct macio_driver pmac_ide_macio_driver = -{ - .driver = { - .name = "ide-pmac", - .owner = THIS_MODULE, - .of_match_table = pmac_ide_macio_match, - }, - .probe = pmac_ide_macio_attach, - .suspend = pmac_ide_macio_suspend, - .resume = pmac_ide_macio_resume, -#ifdef CONFIG_PMAC_MEDIABAY - .mediabay_event = pmac_ide_macio_mb_event, -#endif -}; - -static const struct pci_device_id pmac_ide_pci_match[] = { - { PCI_VDEVICE(APPLE, PCI_DEVICE_ID_APPLE_UNI_N_ATA), 0 }, - { PCI_VDEVICE(APPLE, PCI_DEVICE_ID_APPLE_IPID_ATA100), 0 }, - { PCI_VDEVICE(APPLE, PCI_DEVICE_ID_APPLE_K2_ATA100), 0 }, - { PCI_VDEVICE(APPLE, PCI_DEVICE_ID_APPLE_SH_ATA), 0 }, - { PCI_VDEVICE(APPLE, PCI_DEVICE_ID_APPLE_IPID2_ATA), 0 }, - {}, -}; - -static struct pci_driver pmac_ide_pci_driver = { - .name = "ide-pmac", - .id_table = pmac_ide_pci_match, - .probe = pmac_ide_pci_attach, - .suspend = pmac_ide_pci_suspend, - .resume = pmac_ide_pci_resume, -}; -MODULE_DEVICE_TABLE(pci, pmac_ide_pci_match); - -int __init pmac_ide_probe(void) -{ - int error; - - if (!machine_is(powermac)) - return -ENODEV; - -#ifdef CONFIG_BLK_DEV_IDE_PMAC_ATA100FIRST - error = pci_register_driver(&pmac_ide_pci_driver); - if (error) - goto out; - error = macio_register_driver(&pmac_ide_macio_driver); - if (error) { - pci_unregister_driver(&pmac_ide_pci_driver); - goto out; - } -#else - error = macio_register_driver(&pmac_ide_macio_driver); - if (error) - goto out; - error = pci_register_driver(&pmac_ide_pci_driver); - if (error) { - macio_unregister_driver(&pmac_ide_macio_driver); - goto out; - } -#endif -out: - return error; -} - -/* - * pmac_ide_build_dmatable builds the DBDMA command list - * for a transfer and sets the DBDMA channel to point to it. - */ -static int pmac_ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - struct dbdma_cmd *table; - volatile struct dbdma_regs __iomem *dma = pmif->dma_regs; - struct scatterlist *sg; - int wr = !!(cmd->tf_flags & IDE_TFLAG_WRITE); - int i = cmd->sg_nents, count = 0; - - /* DMA table is already aligned */ - table = (struct dbdma_cmd *) pmif->dma_table_cpu; - - /* Make sure DMA controller is stopped (necessary ?) */ - writel((RUN|PAUSE|FLUSH|WAKE|DEAD) << 16, &dma->control); - while (readl(&dma->status) & RUN) - udelay(1); - - /* Build DBDMA commands list */ - sg = hwif->sg_table; - while (i && sg_dma_len(sg)) { - u32 cur_addr; - u32 cur_len; - - cur_addr = sg_dma_address(sg); - cur_len = sg_dma_len(sg); - - if (pmif->broken_dma && cur_addr & (L1_CACHE_BYTES - 1)) { - if (pmif->broken_dma_warn == 0) { - printk(KERN_WARNING "%s: DMA on non aligned address, " - "switching to PIO on Ohare chipset\n", drive->name); - pmif->broken_dma_warn = 1; - } - return 0; - } - while (cur_len) { - unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00; - - if (count++ >= MAX_DCMDS) { - printk(KERN_WARNING "%s: DMA table too small\n", - drive->name); - return 0; - } - table->command = cpu_to_le16(wr? OUTPUT_MORE: INPUT_MORE); - table->req_count = cpu_to_le16(tc); - table->phy_addr = cpu_to_le32(cur_addr); - table->cmd_dep = 0; - table->xfer_status = 0; - table->res_count = 0; - cur_addr += tc; - cur_len -= tc; - ++table; - } - sg = sg_next(sg); - i--; - } - - /* convert the last command to an input/output last command */ - if (count) { - table[-1].command = cpu_to_le16(wr? OUTPUT_LAST: INPUT_LAST); - /* add the stop command to the end of the list */ - memset(table, 0, sizeof(struct dbdma_cmd)); - table->command = cpu_to_le16(DBDMA_STOP); - mb(); - writel(hwif->dmatable_dma, &dma->cmdptr); - return 1; - } - - printk(KERN_DEBUG "%s: empty DMA table?\n", drive->name); - - return 0; /* revert to PIO for this request */ -} - -/* - * Prepare a DMA transfer. We build the DMA table, adjust the timings for - * a read on KeyLargo ATA/66 and mark us as waiting for DMA completion - */ -static int pmac_ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - u8 unit = drive->dn & 1, ata4 = (pmif->kind == controller_kl_ata4); - u8 write = !!(cmd->tf_flags & IDE_TFLAG_WRITE); - - if (pmac_ide_build_dmatable(drive, cmd) == 0) - return 1; - - /* Apple adds 60ns to wrDataSetup on reads */ - if (ata4 && (pmif->timings[unit] & TR_66_UDMA_EN)) { - writel(pmif->timings[unit] + (write ? 0 : 0x00800000UL), - PMAC_IDE_REG(IDE_TIMING_CONFIG)); - (void)readl(PMAC_IDE_REG(IDE_TIMING_CONFIG)); - } - - return 0; -} - -/* - * Kick the DMA controller into life after the DMA command has been issued - * to the drive. - */ -static void -pmac_ide_dma_start(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - volatile struct dbdma_regs __iomem *dma; - - dma = pmif->dma_regs; - - writel((RUN << 16) | RUN, &dma->control); - /* Make sure it gets to the controller right now */ - (void)readl(&dma->control); -} - -/* - * After a DMA transfer, make sure the controller is stopped - */ -static int -pmac_ide_dma_end (ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - volatile struct dbdma_regs __iomem *dma = pmif->dma_regs; - u32 dstat; - - dstat = readl(&dma->status); - writel(((RUN|WAKE|DEAD) << 16), &dma->control); - - /* verify good dma status. we don't check for ACTIVE beeing 0. We should... - * in theory, but with ATAPI decices doing buffer underruns, that would - * cause us to disable DMA, which isn't what we want - */ - return (dstat & (RUN|DEAD)) != RUN; -} - -/* - * Check out that the interrupt we got was for us. We can't always know this - * for sure with those Apple interfaces (well, we could on the recent ones but - * that's not implemented yet), on the other hand, we don't have shared interrupts - * so it's not really a problem - */ -static int -pmac_ide_dma_test_irq (ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - volatile struct dbdma_regs __iomem *dma = pmif->dma_regs; - unsigned long status, timeout; - - /* We have to things to deal with here: - * - * - The dbdma won't stop if the command was started - * but completed with an error without transferring all - * datas. This happens when bad blocks are met during - * a multi-block transfer. - * - * - The dbdma fifo hasn't yet finished flushing to - * to system memory when the disk interrupt occurs. - * - */ - - /* If ACTIVE is cleared, the STOP command have passed and - * transfer is complete. - */ - status = readl(&dma->status); - if (!(status & ACTIVE)) - return 1; - - /* If dbdma didn't execute the STOP command yet, the - * active bit is still set. We consider that we aren't - * sharing interrupts (which is hopefully the case with - * those controllers) and so we just try to flush the - * channel for pending data in the fifo - */ - udelay(1); - writel((FLUSH << 16) | FLUSH, &dma->control); - timeout = 0; - for (;;) { - udelay(1); - status = readl(&dma->status); - if ((status & FLUSH) == 0) - break; - if (++timeout > 100) { - printk(KERN_WARNING "ide%d, ide_dma_test_irq timeout flushing channel\n", - hwif->index); - break; - } - } - return 1; -} - -static void pmac_ide_dma_host_set(ide_drive_t *drive, int on) -{ -} - -static void -pmac_ide_dma_lost_irq (ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - volatile struct dbdma_regs __iomem *dma = pmif->dma_regs; - unsigned long status = readl(&dma->status); - - printk(KERN_ERR "ide-pmac lost interrupt, dma status: %lx\n", status); -} - -static const struct ide_dma_ops pmac_dma_ops = { - .dma_host_set = pmac_ide_dma_host_set, - .dma_setup = pmac_ide_dma_setup, - .dma_start = pmac_ide_dma_start, - .dma_end = pmac_ide_dma_end, - .dma_test_irq = pmac_ide_dma_test_irq, - .dma_lost_irq = pmac_ide_dma_lost_irq, -}; - -/* - * Allocate the data structures needed for using DMA with an interface - * and fill the proper list of functions pointers - */ -static int pmac_ide_init_dma(ide_hwif_t *hwif, const struct ide_port_info *d) -{ - pmac_ide_hwif_t *pmif = dev_get_drvdata(hwif->gendev.parent); - struct pci_dev *dev = to_pci_dev(hwif->dev); - - /* We won't need pci_dev if we switch to generic consistent - * DMA routines ... - */ - if (dev == NULL || pmif->dma_regs == 0) - return -ENODEV; - /* - * Allocate space for the DBDMA commands. - * The +2 is +1 for the stop command and +1 to allow for - * aligning the start address to a multiple of 16 bytes. - */ - pmif->dma_table_cpu = dma_alloc_coherent(&dev->dev, - (MAX_DCMDS + 2) * sizeof(struct dbdma_cmd), - &hwif->dmatable_dma, GFP_KERNEL); - if (pmif->dma_table_cpu == NULL) { - printk(KERN_ERR "%s: unable to allocate DMA command list\n", - hwif->name); - return -ENOMEM; - } - - hwif->sg_max_nents = MAX_DCMDS; - - return 0; -} - -module_init(pmac_ide_probe); - -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/qd65xx.c b/drivers/ide/qd65xx.c deleted file mode 100644 index ab79b6289464..000000000000 --- a/drivers/ide/qd65xx.c +++ /dev/null @@ -1,446 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1996-2001 Linus Torvalds & author (see below) - */ - -/* - * Version 0.03 Cleaned auto-tune, added probe - * Version 0.04 Added second channel tuning - * Version 0.05 Enhanced tuning ; added qd6500 support - * Version 0.06 Added dos driver's list - * Version 0.07 Second channel bug fix - * - * QDI QD6500/QD6580 EIDE controller fast support - * - * To activate controller support, use "ide0=qd65xx" - */ - -/* - * Rewritten from the work of Colten Edwards <pje120@cs.usask.ca> by - * Samuel Thibault <samuel.thibault@ens-lyon.org> - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/ioport.h> -#include <linux/blkdev.h> -#include <linux/ide.h> -#include <linux/init.h> -#include <asm/io.h> - -#define DRV_NAME "qd65xx" - -#include "qd65xx.h" - -/* - * I/O ports are 0x30-0x31 (and 0x32-0x33 for qd6580) - * or 0xb0-0xb1 (and 0xb2-0xb3 for qd6580) - * -- qd6500 is a single IDE interface - * -- qd6580 is a dual IDE interface - * - * More research on qd6580 being done by willmore@cig.mot.com (David) - * More Information given by Petr Soucek (petr@ryston.cz) - * http://www.ryston.cz/petr/vlb - */ - -/* - * base: Timer1 - * - * - * base+0x01: Config (R/O) - * - * bit 0: ide baseport: 1 = 0x1f0 ; 0 = 0x170 (only useful for qd6500) - * bit 1: qd65xx baseport: 1 = 0xb0 ; 0 = 0x30 - * bit 2: ID3: bus speed: 1 = <=33MHz ; 0 = >33MHz - * bit 3: qd6500: 1 = disabled, 0 = enabled - * qd6580: 1 - * upper nibble: - * qd6500: 1100 - * qd6580: either 1010 or 0101 - * - * - * base+0x02: Timer2 (qd6580 only) - * - * - * base+0x03: Control (qd6580 only) - * - * bits 0-3 must always be set 1 - * bit 4 must be set 1, but is set 0 by dos driver while measuring vlb clock - * bit 0 : 1 = Only primary port enabled : channel 0 for hda, channel 1 for hdb - * 0 = Primary and Secondary ports enabled : channel 0 for hda & hdb - * channel 1 for hdc & hdd - * bit 1 : 1 = only disks on primary port - * 0 = disks & ATAPI devices on primary port - * bit 2-4 : always 0 - * bit 5 : status, but of what ? - * bit 6 : always set 1 by dos driver - * bit 7 : set 1 for non-ATAPI devices on primary port - * (maybe read-ahead and post-write buffer ?) - */ - -static int timings[4]={-1,-1,-1,-1}; /* stores current timing for each timer */ - -/* - * qd65xx_select: - * - * This routine is invoked to prepare for access to a given drive. - */ - -static void qd65xx_dev_select(ide_drive_t *drive) -{ - u8 index = (( (QD_TIMREG(drive)) & 0x80 ) >> 7) | - (QD_TIMREG(drive) & 0x02); - - if (timings[index] != QD_TIMING(drive)) - outb(timings[index] = QD_TIMING(drive), QD_TIMREG(drive)); - - outb(drive->select | ATA_DEVICE_OBS, drive->hwif->io_ports.device_addr); -} - -/* - * qd6500_compute_timing - * - * computes the timing value where - * lower nibble represents active time, in count of VLB clocks - * upper nibble represents recovery time, in count of VLB clocks - */ - -static u8 qd6500_compute_timing (ide_hwif_t *hwif, int active_time, int recovery_time) -{ - int clk = ide_vlb_clk ? ide_vlb_clk : 50; - u8 act_cyc, rec_cyc; - - if (clk <= 33) { - act_cyc = 9 - IDE_IN(active_time * clk / 1000 + 1, 2, 9); - rec_cyc = 15 - IDE_IN(recovery_time * clk / 1000 + 1, 0, 15); - } else { - act_cyc = 8 - IDE_IN(active_time * clk / 1000 + 1, 1, 8); - rec_cyc = 18 - IDE_IN(recovery_time * clk / 1000 + 1, 3, 18); - } - - return (rec_cyc << 4) | 0x08 | act_cyc; -} - -/* - * qd6580_compute_timing - * - * idem for qd6580 - */ - -static u8 qd6580_compute_timing (int active_time, int recovery_time) -{ - int clk = ide_vlb_clk ? ide_vlb_clk : 50; - u8 act_cyc, rec_cyc; - - act_cyc = 17 - IDE_IN(active_time * clk / 1000 + 1, 2, 17); - rec_cyc = 15 - IDE_IN(recovery_time * clk / 1000 + 1, 2, 15); - - return (rec_cyc << 4) | act_cyc; -} - -/* - * qd_find_disk_type - * - * tries to find timing from dos driver's table - */ - -static int qd_find_disk_type (ide_drive_t *drive, - int *active_time, int *recovery_time) -{ - struct qd65xx_timing_s *p; - char *m = (char *)&drive->id[ATA_ID_PROD]; - char model[ATA_ID_PROD_LEN]; - - if (*m == 0) - return 0; - - strncpy(model, m, ATA_ID_PROD_LEN); - ide_fixstring(model, ATA_ID_PROD_LEN, 1); /* byte-swap */ - - for (p = qd65xx_timing ; p->offset != -1 ; p++) { - if (!strncmp(p->model, model+p->offset, 4)) { - printk(KERN_DEBUG "%s: listed !\n", drive->name); - *active_time = p->active; - *recovery_time = p->recovery; - return 1; - } - } - return 0; -} - -/* - * qd_set_timing: - * - * records the timing - */ - -static void qd_set_timing (ide_drive_t *drive, u8 timing) -{ - unsigned long data = (unsigned long)ide_get_drivedata(drive); - - data &= 0xff00; - data |= timing; - ide_set_drivedata(drive, (void *)data); - - printk(KERN_DEBUG "%s: %#x\n", drive->name, timing); -} - -static void qd6500_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - u16 *id = drive->id; - int active_time = 175; - int recovery_time = 415; /* worst case values from the dos driver */ - - /* FIXME: use drive->pio_mode value */ - if (!qd_find_disk_type(drive, &active_time, &recovery_time) && - (id[ATA_ID_OLD_PIO_MODES] & 0xff) && (id[ATA_ID_FIELD_VALID] & 2) && - id[ATA_ID_EIDE_PIO] >= 240) { - printk(KERN_INFO "%s: PIO mode%d\n", drive->name, - id[ATA_ID_OLD_PIO_MODES] & 0xff); - active_time = 110; - recovery_time = drive->id[ATA_ID_EIDE_PIO] - 120; - } - - qd_set_timing(drive, qd6500_compute_timing(drive->hwif, - active_time, recovery_time)); -} - -static void qd6580_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - const u8 pio = drive->pio_mode - XFER_PIO_0; - struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); - unsigned int cycle_time; - int active_time = 175; - int recovery_time = 415; /* worst case values from the dos driver */ - u8 base = (hwif->config_data & 0xff00) >> 8; - - if (drive->id && !qd_find_disk_type(drive, &active_time, &recovery_time)) { - cycle_time = ide_pio_cycle_time(drive, pio); - - switch (pio) { - case 0: break; - case 3: - if (cycle_time >= 110) { - active_time = 86; - recovery_time = cycle_time - 102; - } else - printk(KERN_WARNING "%s: Strange recovery time !\n",drive->name); - break; - case 4: - if (cycle_time >= 69) { - active_time = 70; - recovery_time = cycle_time - 61; - } else - printk(KERN_WARNING "%s: Strange recovery time !\n",drive->name); - break; - default: - if (cycle_time >= 180) { - active_time = 110; - recovery_time = cycle_time - 120; - } else { - active_time = t->active; - recovery_time = cycle_time - active_time; - } - } - printk(KERN_INFO "%s: PIO mode%d\n", drive->name,pio); - } - - if (!hwif->channel && drive->media != ide_disk) { - outb(0x5f, QD_CONTROL_PORT); - printk(KERN_WARNING "%s: ATAPI: disabled read-ahead FIFO " - "and post-write buffer on %s.\n", - drive->name, hwif->name); - } - - qd_set_timing(drive, qd6580_compute_timing(active_time, recovery_time)); -} - -/* - * qd_testreg - * - * tests if the given port is a register - */ - -static int __init qd_testreg(int port) -{ - unsigned long flags; - u8 savereg, readreg; - - local_irq_save(flags); - savereg = inb_p(port); - outb_p(QD_TESTVAL, port); /* safe value */ - readreg = inb_p(port); - outb(savereg, port); - local_irq_restore(flags); - - if (savereg == QD_TESTVAL) { - printk(KERN_ERR "Outch ! the probe for qd65xx isn't reliable !\n"); - printk(KERN_ERR "Please contact maintainers to tell about your hardware\n"); - printk(KERN_ERR "Assuming qd65xx is not present.\n"); - return 1; - } - - return (readreg != QD_TESTVAL); -} - -static void __init qd6500_init_dev(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 base = (hwif->config_data & 0xff00) >> 8; - u8 config = QD_CONFIG(hwif); - - ide_set_drivedata(drive, (void *)QD6500_DEF_DATA); -} - -static void __init qd6580_init_dev(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - unsigned long t1, t2; - u8 base = (hwif->config_data & 0xff00) >> 8; - u8 config = QD_CONFIG(hwif); - - if (hwif->host_flags & IDE_HFLAG_SINGLE) { - t1 = QD6580_DEF_DATA; - t2 = QD6580_DEF_DATA2; - } else - t2 = t1 = hwif->channel ? QD6580_DEF_DATA2 : QD6580_DEF_DATA; - - ide_set_drivedata(drive, (void *)((drive->dn & 1) ? t2 : t1)); -} - -static const struct ide_tp_ops qd65xx_tp_ops = { - .exec_command = ide_exec_command, - .read_status = ide_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = ide_write_devctl, - - .dev_select = qd65xx_dev_select, - .tf_load = ide_tf_load, - .tf_read = ide_tf_read, - - .input_data = ide_input_data, - .output_data = ide_output_data, -}; - -static const struct ide_port_ops qd6500_port_ops = { - .init_dev = qd6500_init_dev, - .set_pio_mode = qd6500_set_pio_mode, -}; - -static const struct ide_port_ops qd6580_port_ops = { - .init_dev = qd6580_init_dev, - .set_pio_mode = qd6580_set_pio_mode, -}; - -static const struct ide_port_info qd65xx_port_info __initconst = { - .name = DRV_NAME, - .tp_ops = &qd65xx_tp_ops, - .chipset = ide_qd65xx, - .host_flags = IDE_HFLAG_IO_32BIT | - IDE_HFLAG_NO_DMA, - .pio_mask = ATA_PIO4, -}; - -/* - * qd_probe: - * - * looks at the specified baseport, and if qd found, registers & initialises it - * return 1 if another qd may be probed - */ - -static int __init qd_probe(int base) -{ - int rc; - u8 config, unit, control; - struct ide_port_info d = qd65xx_port_info; - - config = inb(QD_CONFIG_PORT); - - if (! ((config & QD_CONFIG_BASEPORT) >> 1 == (base == 0xb0)) ) - return -ENODEV; - - unit = ! (config & QD_CONFIG_IDE_BASEPORT); - - if (unit) - d.host_flags |= IDE_HFLAG_QD_2ND_PORT; - - switch (config & 0xf0) { - case QD_CONFIG_QD6500: - if (qd_testreg(base)) - return -ENODEV; /* bad register */ - - if (config & QD_CONFIG_DISABLED) { - printk(KERN_WARNING "qd6500 is disabled !\n"); - return -ENODEV; - } - - printk(KERN_NOTICE "qd6500 at %#x\n", base); - printk(KERN_DEBUG "qd6500: config=%#x, ID3=%u\n", - config, QD_ID3); - - d.port_ops = &qd6500_port_ops; - d.host_flags |= IDE_HFLAG_SINGLE; - break; - case QD_CONFIG_QD6580_A: - case QD_CONFIG_QD6580_B: - if (qd_testreg(base) || qd_testreg(base + 0x02)) - return -ENODEV; /* bad registers */ - - control = inb(QD_CONTROL_PORT); - - printk(KERN_NOTICE "qd6580 at %#x\n", base); - printk(KERN_DEBUG "qd6580: config=%#x, control=%#x, ID3=%u\n", - config, control, QD_ID3); - - outb(QD_DEF_CONTR, QD_CONTROL_PORT); - - d.port_ops = &qd6580_port_ops; - if (control & QD_CONTR_SEC_DISABLED) - d.host_flags |= IDE_HFLAG_SINGLE; - - printk(KERN_INFO "qd6580: %s IDE board\n", - (control & QD_CONTR_SEC_DISABLED) ? "single" : "dual"); - break; - default: - return -ENODEV; - } - - rc = ide_legacy_device_add(&d, (base << 8) | config); - - if (d.host_flags & IDE_HFLAG_SINGLE) - return (rc == 0) ? 1 : rc; - - return rc; -} - -static bool probe_qd65xx; - -module_param_named(probe, probe_qd65xx, bool, 0); -MODULE_PARM_DESC(probe, "probe for QD65xx chipsets"); - -static int __init qd65xx_init(void) -{ - int rc1, rc2 = -ENODEV; - - if (probe_qd65xx == 0) - return -ENODEV; - - rc1 = qd_probe(0x30); - if (rc1) - rc2 = qd_probe(0xb0); - - if (rc1 < 0 && rc2 < 0) - return -ENODEV; - - return 0; -} - -module_init(qd65xx_init); - -MODULE_AUTHOR("Samuel Thibault"); -MODULE_DESCRIPTION("support of qd65xx vlb ide chipset"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/qd65xx.h b/drivers/ide/qd65xx.h deleted file mode 100644 index 01a43ab45e0e..000000000000 --- a/drivers/ide/qd65xx.h +++ /dev/null @@ -1,145 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (c) 2000 Linus Torvalds & authors - */ - -/* - * Authors: Petr Soucek <petr@ryston.cz> - * Samuel Thibault <samuel.thibault@ens-lyon.org> - */ - -/* truncates a in [b,c] */ -#define IDE_IN(a,b,c) ( ((a)<(b)) ? (b) : ( (a)>(c) ? (c) : (a)) ) - -#define IDE_IMPLY(a,b) ((!(a)) || (b)) - -#define QD_TIM1_PORT (base) -#define QD_CONFIG_PORT (base+0x01) -#define QD_TIM2_PORT (base+0x02) -#define QD_CONTROL_PORT (base+0x03) - -#define QD_CONFIG_IDE_BASEPORT 0x01 -#define QD_CONFIG_BASEPORT 0x02 -#define QD_CONFIG_ID3 0x04 -#define QD_CONFIG_DISABLED 0x08 -#define QD_CONFIG_QD6500 0xc0 -#define QD_CONFIG_QD6580_A 0xa0 -#define QD_CONFIG_QD6580_B 0x50 - -#define QD_CONTR_SEC_DISABLED 0x01 - -#define QD_ID3 ((config & QD_CONFIG_ID3)!=0) - -#define QD_CONFIG(hwif) ((hwif)->config_data & 0x00ff) - -static inline u8 QD_TIMING(ide_drive_t *drive) -{ - return (unsigned long)ide_get_drivedata(drive) & 0x00ff; -} - -static inline u8 QD_TIMREG(ide_drive_t *drive) -{ - return ((unsigned long)ide_get_drivedata(drive) & 0xff00) >> 8; -} - -#define QD6500_DEF_DATA ((QD_TIM1_PORT<<8) | (QD_ID3 ? 0x0c : 0x08)) -#define QD6580_DEF_DATA ((QD_TIM1_PORT<<8) | (QD_ID3 ? 0x0a : 0x00)) -#define QD6580_DEF_DATA2 ((QD_TIM2_PORT<<8) | (QD_ID3 ? 0x0a : 0x00)) -#define QD_DEF_CONTR (0x40 | ((control & 0x02) ? 0x9f : 0x1f)) - -#define QD_TESTVAL 0x19 /* safe value */ - -/* Drive specific timing taken from DOS driver v3.7 */ - -static struct qd65xx_timing_s { - s8 offset; /* ofset from the beginning of Model Number" */ - char model[4]; /* 4 chars from Model number, no conversion */ - s16 active; /* active time */ - s16 recovery; /* recovery time */ -} qd65xx_timing [] = { - { 30, "2040", 110, 225 }, /* Conner CP30204 */ - { 30, "2045", 135, 225 }, /* Conner CP30254 */ - { 30, "1040", 155, 325 }, /* Conner CP30104 */ - { 30, "1047", 135, 265 }, /* Conner CP30174 */ - { 30, "5344", 135, 225 }, /* Conner CP3544 */ - { 30, "01 4", 175, 405 }, /* Conner CP-3104 */ - { 27, "C030", 175, 375 }, /* Conner CP3000 */ - { 8, "PL42", 110, 295 }, /* Quantum LP240 */ - { 8, "PL21", 110, 315 }, /* Quantum LP120 */ - { 8, "PL25", 175, 385 }, /* Quantum LP52 */ - { 4, "PA24", 110, 285 }, /* WD Piranha SP4200 */ - { 6, "2200", 110, 260 }, /* WD Caviar AC2200 */ - { 6, "3204", 110, 235 }, /* WD Caviar AC2340 */ - { 6, "1202", 110, 265 }, /* WD Caviar AC2120 */ - { 0, "DS3-", 135, 315 }, /* Teac SD340 */ - { 8, "KM32", 175, 355 }, /* Toshiba MK234 */ - { 2, "53A1", 175, 355 }, /* Seagate ST351A */ - { 2, "4108", 175, 295 }, /* Seagate ST1480A */ - { 2, "1344", 175, 335 }, /* Seagate ST3144A */ - { 6, "7 12", 110, 225 }, /* Maxtor 7213A */ - { 30, "02F4", 145, 295 }, /* Conner 3204F */ - { 2, "1302", 175, 335 }, /* Seagate ST3120A */ - { 2, "2334", 145, 265 }, /* Seagate ST3243A */ - { 2, "2338", 145, 275 }, /* Seagate ST3283A */ - { 2, "3309", 145, 275 }, /* Seagate ST3390A */ - { 2, "5305", 145, 275 }, /* Seagate ST3550A */ - { 2, "4100", 175, 295 }, /* Seagate ST1400A */ - { 2, "4110", 175, 295 }, /* Seagate ST1401A */ - { 2, "6300", 135, 265 }, /* Seagate ST3600A */ - { 2, "5300", 135, 265 }, /* Seagate ST3500A */ - { 6, "7 31", 135, 225 }, /* Maxtor 7131 AT */ - { 6, "7 43", 115, 265 }, /* Maxtor 7345 AT */ - { 6, "7 42", 110, 255 }, /* Maxtor 7245 AT */ - { 6, "3 04", 135, 265 }, /* Maxtor 340 AT */ - { 6, "61 0", 135, 285 }, /* WD AC160 */ - { 6, "1107", 135, 235 }, /* WD AC1170 */ - { 6, "2101", 110, 220 }, /* WD AC1210 */ - { 6, "4202", 135, 245 }, /* WD AC2420 */ - { 6, "41 0", 175, 355 }, /* WD Caviar 140 */ - { 6, "82 0", 175, 355 }, /* WD Caviar 280 */ - { 8, "PL01", 175, 375 }, /* Quantum LP105 */ - { 8, "PL25", 110, 295 }, /* Quantum LP525 */ - { 10, "4S 2", 175, 385 }, /* Quantum ELS42 */ - { 10, "8S 5", 175, 385 }, /* Quantum ELS85 */ - { 10, "1S72", 175, 385 }, /* Quantum ELS127 */ - { 10, "1S07", 175, 385 }, /* Quantum ELS170 */ - { 8, "ZE42", 135, 295 }, /* Quantum EZ240 */ - { 8, "ZE21", 175, 385 }, /* Quantum EZ127 */ - { 8, "ZE58", 175, 385 }, /* Quantum EZ85 */ - { 8, "ZE24", 175, 385 }, /* Quantum EZ42 */ - { 27, "C036", 155, 325 }, /* Conner CP30064 */ - { 27, "C038", 155, 325 }, /* Conner CP30084 */ - { 6, "2205", 110, 255 }, /* WDC AC2250 */ - { 2, " CHA", 140, 415 }, /* WDC AH series; WDC AH260, WDC */ - { 2, " CLA", 140, 415 }, /* WDC AL series: WDC AL2120, 2170, */ - { 4, "UC41", 140, 415 }, /* WDC CU140 */ - { 6, "1207", 130, 275 }, /* WDC AC2170 */ - { 6, "2107", 130, 275 }, /* WDC AC1270 */ - { 6, "5204", 130, 275 }, /* WDC AC2540 */ - { 30, "3004", 110, 235 }, /* Conner CP30340 */ - { 30, "0345", 135, 255 }, /* Conner CP30544 */ - { 12, "12A3", 175, 320 }, /* MAXTOR LXT-213A */ - { 12, "43A0", 145, 240 }, /* MAXTOR LXT-340A */ - { 6, "7 21", 180, 290 }, /* Maxtor 7120 AT */ - { 6, "7 71", 135, 240 }, /* Maxtor 7170 AT */ - { 12, "45\0000", 110, 205 }, /* MAXTOR MXT-540 */ - { 8, "PL11", 180, 290 }, /* QUANTUM LP110A */ - { 8, "OG21", 150, 275 }, /* QUANTUM GO120 */ - { 12, "42A5", 175, 320 }, /* MAXTOR LXT-245A */ - { 2, "2309", 175, 295 }, /* ST3290A */ - { 2, "3358", 180, 310 }, /* ST3385A */ - { 2, "6355", 180, 310 }, /* ST3655A */ - { 2, "1900", 175, 270 }, /* ST9100A */ - { 2, "1954", 175, 270 }, /* ST9145A */ - { 2, "1909", 175, 270 }, /* ST9190AG */ - { 2, "2953", 175, 270 }, /* ST9235A */ - { 2, "1359", 175, 270 }, /* ST3195A */ - { 24, "3R11", 175, 290 }, /* ALPS ELECTRIC Co.,LTD, DR311C */ - { 0, "2M26", 175, 215 }, /* M262XT-0Ah */ - { 4, "2253", 175, 300 }, /* HP C2235A */ - { 4, "-32A", 145, 245 }, /* H3133-A2 */ - { 30, "0326", 150, 270 }, /* Samsung Electronics 120MB */ - { 30, "3044", 110, 195 }, /* Conner CFA340A */ - { 30, "43A0", 110, 195 }, /* Conner CFA340A */ - { -1, " ", 175, 415 } /* unknown disk name */ -}; diff --git a/drivers/ide/rapide.c b/drivers/ide/rapide.c deleted file mode 100644 index 0ab8b86b7ed7..000000000000 --- a/drivers/ide/rapide.c +++ /dev/null @@ -1,106 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (c) 1996-2002 Russell King. - */ - -#include <linux/module.h> -#include <linux/blkdev.h> -#include <linux/errno.h> -#include <linux/ide.h> -#include <linux/init.h> - -#include <asm/ecard.h> - -static const struct ide_port_info rapide_port_info = { - .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA, - .chipset = ide_generic, -}; - -static void rapide_setup_ports(struct ide_hw *hw, void __iomem *base, - void __iomem *ctrl, unsigned int sz, int irq) -{ - unsigned long port = (unsigned long)base; - int i; - - for (i = 0; i <= 7; i++) { - hw->io_ports_array[i] = port; - port += sz; - } - hw->io_ports.ctl_addr = (unsigned long)ctrl; - hw->irq = irq; -} - -static int rapide_probe(struct expansion_card *ec, const struct ecard_id *id) -{ - void __iomem *base; - struct ide_host *host; - int ret; - struct ide_hw hw, *hws[] = { &hw }; - - ret = ecard_request_resources(ec); - if (ret) - goto out; - - base = ecardm_iomap(ec, ECARD_RES_MEMC, 0, 0); - if (!base) { - ret = -ENOMEM; - goto release; - } - - memset(&hw, 0, sizeof(hw)); - rapide_setup_ports(&hw, base, base + 0x818, 1 << 6, ec->irq); - hw.dev = &ec->dev; - - ret = ide_host_add(&rapide_port_info, hws, 1, &host); - if (ret) - goto release; - - ecard_set_drvdata(ec, host); - goto out; - - release: - ecard_release_resources(ec); - out: - return ret; -} - -static void rapide_remove(struct expansion_card *ec) -{ - struct ide_host *host = ecard_get_drvdata(ec); - - ecard_set_drvdata(ec, NULL); - - ide_host_remove(host); - - ecard_release_resources(ec); -} - -static struct ecard_id rapide_ids[] = { - { MANU_YELLOWSTONE, PROD_YELLOWSTONE_RAPIDE32 }, - { 0xffff, 0xffff } -}; - -static struct ecard_driver rapide_driver = { - .probe = rapide_probe, - .remove = rapide_remove, - .id_table = rapide_ids, - .drv = { - .name = "rapide", - }, -}; - -static int __init rapide_init(void) -{ - return ecard_register_driver(&rapide_driver); -} - -static void __exit rapide_exit(void) -{ - ecard_remove_driver(&rapide_driver); -} - -MODULE_LICENSE("GPL"); -MODULE_DESCRIPTION("Yellowstone RAPIDE driver"); - -module_init(rapide_init); -module_exit(rapide_exit); diff --git a/drivers/ide/rz1000.c b/drivers/ide/rz1000.c deleted file mode 100644 index fce2b7de5a19..000000000000 --- a/drivers/ide/rz1000.c +++ /dev/null @@ -1,100 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1995-1998 Linus Torvalds & author (see below) - */ - -/* - * Principal Author: mlord@pobox.com (Mark Lord) - * - * See linux/MAINTAINERS for address of current maintainer. - * - * This file provides support for disabling the buggy read-ahead - * mode of the RZ1000 IDE chipset, commonly used on Intel motherboards. - * - * Dunno if this fixes both ports, or only the primary port (?). - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#define DRV_NAME "rz1000" - -static int rz1000_disable_readahead(struct pci_dev *dev) -{ - u16 reg; - - if (!pci_read_config_word (dev, 0x40, ®) && - !pci_write_config_word(dev, 0x40, reg & 0xdfff)) { - printk(KERN_INFO "%s: disabled chipset read-ahead " - "(buggy RZ1000/RZ1001)\n", pci_name(dev)); - return 0; - } else { - printk(KERN_INFO "%s: serialized, disabled unmasking " - "(buggy RZ1000/RZ1001)\n", pci_name(dev)); - return 1; - } -} - -static const struct ide_port_info rz1000_chipset = { - .name = DRV_NAME, - .host_flags = IDE_HFLAG_NO_DMA, -}; - -static int rz1000_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct ide_port_info d = rz1000_chipset; - int rc; - - rc = pci_enable_device(dev); - if (rc) - return rc; - - if (rz1000_disable_readahead(dev)) { - d.host_flags |= IDE_HFLAG_SERIALIZE; - d.host_flags |= IDE_HFLAG_NO_UNMASK_IRQS; - } - - return ide_pci_init_one(dev, &d, NULL); -} - -static void rz1000_remove(struct pci_dev *dev) -{ - ide_pci_remove(dev); - pci_disable_device(dev); -} - -static const struct pci_device_id rz1000_pci_tbl[] = { - { PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_RZ1000), 0 }, - { PCI_VDEVICE(PCTECH, PCI_DEVICE_ID_PCTECH_RZ1001), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, rz1000_pci_tbl); - -static struct pci_driver rz1000_pci_driver = { - .name = "RZ1000_IDE", - .id_table = rz1000_pci_tbl, - .probe = rz1000_init_one, - .remove = rz1000_remove, -}; - -static int __init rz1000_ide_init(void) -{ - return ide_pci_register_driver(&rz1000_pci_driver); -} - -static void __exit rz1000_ide_exit(void) -{ - pci_unregister_driver(&rz1000_pci_driver); -} - -module_init(rz1000_ide_init); -module_exit(rz1000_ide_exit); - -MODULE_AUTHOR("Andre Hedrick"); -MODULE_DESCRIPTION("PCI driver module for RZ1000 IDE"); -MODULE_LICENSE("GPL"); - diff --git a/drivers/ide/sc1200.c b/drivers/ide/sc1200.c deleted file mode 100644 index a5b701818405..000000000000 --- a/drivers/ide/sc1200.c +++ /dev/null @@ -1,355 +0,0 @@ -/* - * Copyright (C) 2000-2002 Mark Lord <mlord@pobox.com> - * Copyright (C) 2007 Bartlomiej Zolnierkiewicz - * - * May be copied or modified under the terms of the GNU General Public License - * - * Development of this chipset driver was funded - * by the nice folks at National Semiconductor. - * - * Documentation: - * Available from National Semiconductor - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ide.h> -#include <linux/pm.h> - -#include <asm/io.h> - -#define DRV_NAME "sc1200" - -#define SC1200_REV_A 0x00 -#define SC1200_REV_B1 0x01 -#define SC1200_REV_B3 0x02 -#define SC1200_REV_C1 0x03 -#define SC1200_REV_D1 0x04 - -#define PCI_CLK_33 0x00 -#define PCI_CLK_48 0x01 -#define PCI_CLK_66 0x02 -#define PCI_CLK_33A 0x03 - -static unsigned short sc1200_get_pci_clock (void) -{ - unsigned char chip_id, silicon_revision; - unsigned int pci_clock; - /* - * Check the silicon revision, as not all versions of the chip - * have the register with the fast PCI bus timings. - */ - chip_id = inb (0x903c); - silicon_revision = inb (0x903d); - - // Read the fast pci clock frequency - if (chip_id == 0x04 && silicon_revision < SC1200_REV_B1) { - pci_clock = PCI_CLK_33; - } else { - // check clock generator configuration (cfcc) - // the clock is in bits 8 and 9 of this word - - pci_clock = inw (0x901e); - pci_clock >>= 8; - pci_clock &= 0x03; - if (pci_clock == PCI_CLK_33A) - pci_clock = PCI_CLK_33; - } - return pci_clock; -} - -/* - * Here are the standard PIO mode 0-4 timings for each "format". - * Format-0 uses fast data reg timings, with slower command reg timings. - * Format-1 uses fast timings for all registers, but won't work with all drives. - */ -static const unsigned int sc1200_pio_timings[4][5] = - {{0x00009172, 0x00012171, 0x00020080, 0x00032010, 0x00040010}, // format0 33Mhz - {0xd1329172, 0x71212171, 0x30200080, 0x20102010, 0x00100010}, // format1, 33Mhz - {0xfaa3f4f3, 0xc23232b2, 0x513101c1, 0x31213121, 0x10211021}, // format1, 48Mhz - {0xfff4fff4, 0xf35353d3, 0x814102f1, 0x42314231, 0x11311131}}; // format1, 66Mhz - -/* - * After chip reset, the PIO timings are set to 0x00009172, which is not valid. - */ -//#define SC1200_BAD_PIO(timings) (((timings)&~0x80000000)==0x00009172) - -static void sc1200_tunepio(ide_drive_t *drive, u8 pio) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *pdev = to_pci_dev(hwif->dev); - unsigned int basereg = hwif->channel ? 0x50 : 0x40, format = 0; - - pci_read_config_dword(pdev, basereg + 4, &format); - format = (format >> 31) & 1; - if (format) - format += sc1200_get_pci_clock(); - pci_write_config_dword(pdev, basereg + ((drive->dn & 1) << 3), - sc1200_pio_timings[format][pio]); -} - -/* - * The SC1200 specifies that two drives sharing a cable cannot mix - * UDMA/MDMA. It has to be one or the other, for the pair, though - * different timings can still be chosen for each drive. We could - * set the appropriate timing bits on the fly, but that might be - * a bit confusing. So, for now we statically handle this requirement - * by looking at our mate drive to see what it is capable of, before - * choosing a mode for our own drive. - */ -static u8 sc1200_udma_filter(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - ide_drive_t *mate = ide_get_pair_dev(drive); - u16 *mateid; - u8 mask = hwif->ultra_mask; - - if (mate == NULL) - goto out; - mateid = mate->id; - - if (ata_id_has_dma(mateid) && __ide_dma_bad_drive(mate) == 0) { - if ((mateid[ATA_ID_FIELD_VALID] & 4) && - (mateid[ATA_ID_UDMA_MODES] & 7)) - goto out; - if (mateid[ATA_ID_MWDMA_MODES] & 7) - mask = 0; - } -out: - return mask; -} - -static void sc1200_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned int reg, timings; - unsigned short pci_clock; - unsigned int basereg = hwif->channel ? 0x50 : 0x40; - const u8 mode = drive->dma_mode; - - static const u32 udma_timing[3][3] = { - { 0x00921250, 0x00911140, 0x00911030 }, - { 0x00932470, 0x00922260, 0x00922140 }, - { 0x009436a1, 0x00933481, 0x00923261 }, - }; - - static const u32 mwdma_timing[3][3] = { - { 0x00077771, 0x00012121, 0x00002020 }, - { 0x000bbbb2, 0x00024241, 0x00013131 }, - { 0x000ffff3, 0x00035352, 0x00015151 }, - }; - - pci_clock = sc1200_get_pci_clock(); - - /* - * Note that each DMA mode has several timings associated with it. - * The correct timing depends on the fast PCI clock freq. - */ - - if (mode >= XFER_UDMA_0) - timings = udma_timing[pci_clock][mode - XFER_UDMA_0]; - else - timings = mwdma_timing[pci_clock][mode - XFER_MW_DMA_0]; - - if ((drive->dn & 1) == 0) { - pci_read_config_dword(dev, basereg + 4, ®); - timings |= reg & 0x80000000; /* preserve PIO format bit */ - pci_write_config_dword(dev, basereg + 4, timings); - } else - pci_write_config_dword(dev, basereg + 12, timings); -} - -/* Replacement for the standard ide_dma_end action in - * dma_proc. - * - * returns 1 on error, 0 otherwise - */ -static int sc1200_dma_end(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - unsigned long dma_base = hwif->dma_base; - u8 dma_stat; - - dma_stat = inb(dma_base+2); /* get DMA status */ - - if (!(dma_stat & 4)) - printk(" ide_dma_end dma_stat=%0x err=%x newerr=%x\n", - dma_stat, ((dma_stat&7)!=4), ((dma_stat&2)==2)); - - outb(dma_stat|0x1b, dma_base+2); /* clear the INTR & ERROR bits */ - outb(inb(dma_base)&~1, dma_base); /* !! DO THIS HERE !! stop DMA */ - - return (dma_stat & 7) != 4; /* verify good DMA status */ -} - -/* - * sc1200_set_pio_mode() handles setting of PIO modes - * for both the chipset and drive. - * - * All existing BIOSs for this chipset guarantee that all drives - * will have valid default PIO timings set up before we get here. - */ - -static void sc1200_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - int mode = -1; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - /* - * bad abuse of ->set_pio_mode interface - */ - switch (pio) { - case 200: mode = XFER_UDMA_0; break; - case 201: mode = XFER_UDMA_1; break; - case 202: mode = XFER_UDMA_2; break; - case 100: mode = XFER_MW_DMA_0; break; - case 101: mode = XFER_MW_DMA_1; break; - case 102: mode = XFER_MW_DMA_2; break; - } - if (mode != -1) { - printk("SC1200: %s: changing (U)DMA mode\n", drive->name); - ide_dma_off_quietly(drive); - if (ide_set_dma_mode(drive, mode) == 0 && - (drive->dev_flags & IDE_DFLAG_USING_DMA)) - hwif->dma_ops->dma_host_set(drive, 1); - return; - } - - sc1200_tunepio(drive, pio); -} - -#ifdef CONFIG_PM -struct sc1200_saved_state { - u32 regs[8]; -}; - -static int sc1200_suspend (struct pci_dev *dev, pm_message_t state) -{ - printk("SC1200: suspend(%u)\n", state.event); - - /* - * we only save state when going from full power to less - */ - if (state.event == PM_EVENT_ON) { - struct ide_host *host = pci_get_drvdata(dev); - struct sc1200_saved_state *ss = host->host_priv; - unsigned int r; - - /* - * save timing registers - * (this may be unnecessary if BIOS also does it) - */ - for (r = 0; r < 8; r++) - pci_read_config_dword(dev, 0x40 + r * 4, &ss->regs[r]); - } - - pci_disable_device(dev); - pci_set_power_state(dev, pci_choose_state(dev, state)); - return 0; -} - -static int sc1200_resume (struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - struct sc1200_saved_state *ss = host->host_priv; - unsigned int r; - int i; - - i = pci_enable_device(dev); - if (i) - return i; - - /* - * restore timing registers - * (this may be unnecessary if BIOS also does it) - */ - for (r = 0; r < 8; r++) - pci_write_config_dword(dev, 0x40 + r * 4, ss->regs[r]); - - return 0; -} -#endif - -static const struct ide_port_ops sc1200_port_ops = { - .set_pio_mode = sc1200_set_pio_mode, - .set_dma_mode = sc1200_set_dma_mode, - .udma_filter = sc1200_udma_filter, -}; - -static const struct ide_dma_ops sc1200_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = ide_dma_start, - .dma_end = sc1200_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = ide_dma_sff_read_status, -}; - -static const struct ide_port_info sc1200_chipset = { - .name = DRV_NAME, - .port_ops = &sc1200_port_ops, - .dma_ops = &sc1200_dma_ops, - .host_flags = IDE_HFLAG_SERIALIZE | - IDE_HFLAG_POST_SET_MODE | - IDE_HFLAG_ABUSE_DMA_MODES, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA2, -}; - -static int sc1200_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct sc1200_saved_state *ss = NULL; - int rc; - -#ifdef CONFIG_PM - ss = kmalloc(sizeof(*ss), GFP_KERNEL); - if (ss == NULL) - return -ENOMEM; -#endif - rc = ide_pci_init_one(dev, &sc1200_chipset, ss); - if (rc) - kfree(ss); - - return rc; -} - -static const struct pci_device_id sc1200_pci_tbl[] = { - { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_SCx200_IDE), 0}, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, sc1200_pci_tbl); - -static struct pci_driver sc1200_pci_driver = { - .name = "SC1200_IDE", - .id_table = sc1200_pci_tbl, - .probe = sc1200_init_one, - .remove = ide_pci_remove, -#ifdef CONFIG_PM - .suspend = sc1200_suspend, - .resume = sc1200_resume, -#endif -}; - -static int __init sc1200_ide_init(void) -{ - return ide_pci_register_driver(&sc1200_pci_driver); -} - -static void __exit sc1200_ide_exit(void) -{ - pci_unregister_driver(&sc1200_pci_driver); -} - -module_init(sc1200_ide_init); -module_exit(sc1200_ide_exit); - -MODULE_AUTHOR("Mark Lord"); -MODULE_DESCRIPTION("PCI driver module for NS SC1200 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/serverworks.c b/drivers/ide/serverworks.c deleted file mode 100644 index 458e72e034b0..000000000000 --- a/drivers/ide/serverworks.c +++ /dev/null @@ -1,456 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1998-2000 Michel Aubry - * Copyright (C) 1998-2000 Andrzej Krzysztofowicz - * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2007-2010 Bartlomiej Zolnierkiewicz - * Portions copyright (c) 2001 Sun Microsystems - * - * - * RCC/ServerWorks IDE driver for Linux - * - * OSB4: `Open South Bridge' IDE Interface (fn 1) - * supports UDMA mode 2 (33 MB/s) - * - * CSB5: `Champion South Bridge' IDE Interface (fn 1) - * all revisions support UDMA mode 4 (66 MB/s) - * revision A2.0 and up support UDMA mode 5 (100 MB/s) - * - * *** The CSB5 does not provide ANY register *** - * *** to detect 80-conductor cable presence. *** - * - * CSB6: `Champion South Bridge' IDE Interface (optional: third channel) - * - * HT1000: AKA BCM5785 - Hypertransport Southbridge for Opteron systems. IDE - * controller same as the CSB6. Single channel ATA100 only. - * - * Documentation: - * Available under NDA only. Errata info very hard to get. - * - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#include <asm/io.h> - -#define DRV_NAME "serverworks" - -#define SVWKS_CSB5_REVISION_NEW 0x92 /* min PCI_REVISION_ID for UDMA5 (A2.0) */ -#define SVWKS_CSB6_REVISION 0xa0 /* min PCI_REVISION_ID for UDMA4 (A1.0) */ - -/* Seagate Barracuda ATA IV Family drives in UDMA mode 5 - * can overrun their FIFOs when used with the CSB5 */ -static const char *svwks_bad_ata100[] = { - "ST320011A", - "ST340016A", - "ST360021A", - "ST380021A", - NULL -}; - -static int check_in_drive_lists (ide_drive_t *drive, const char **list) -{ - char *m = (char *)&drive->id[ATA_ID_PROD]; - - while (*list) - if (!strcmp(*list++, m)) - return 1; - return 0; -} - -static u8 svwks_udma_filter(ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - - if (dev->device == PCI_DEVICE_ID_SERVERWORKS_HT1000IDE) { - return 0x1f; - } else if (dev->revision < SVWKS_CSB5_REVISION_NEW) { - return 0x07; - } else { - u8 btr = 0, mode, mask; - - pci_read_config_byte(dev, 0x5A, &btr); - mode = btr & 0x3; - - /* If someone decides to do UDMA133 on CSB5 the same - issue will bite so be inclusive */ - if (mode > 2 && check_in_drive_lists(drive, svwks_bad_ata100)) - mode = 2; - - switch(mode) { - case 3: mask = 0x3f; break; - case 2: mask = 0x1f; break; - case 1: mask = 0x07; break; - default: mask = 0x00; break; - } - - return mask; - } -} - -static u8 svwks_csb_check (struct pci_dev *dev) -{ - switch (dev->device) { - case PCI_DEVICE_ID_SERVERWORKS_CSB5IDE: - case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE: - case PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2: - case PCI_DEVICE_ID_SERVERWORKS_HT1000IDE: - return 1; - default: - break; - } - return 0; -} - -static void svwks_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - static const u8 pio_modes[] = { 0x5d, 0x47, 0x34, 0x22, 0x20 }; - static const u8 drive_pci[] = { 0x41, 0x40, 0x43, 0x42 }; - - struct pci_dev *dev = to_pci_dev(hwif->dev); - const u8 pio = drive->pio_mode - XFER_PIO_0; - - if (drive->dn >= ARRAY_SIZE(drive_pci)) - return; - - pci_write_config_byte(dev, drive_pci[drive->dn], pio_modes[pio]); - - if (svwks_csb_check(dev)) { - u16 csb_pio = 0; - - pci_read_config_word(dev, 0x4a, &csb_pio); - - csb_pio &= ~(0x0f << (4 * drive->dn)); - csb_pio |= (pio << (4 * drive->dn)); - - pci_write_config_word(dev, 0x4a, csb_pio); - } -} - -static void svwks_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - static const u8 udma_modes[] = { 0x00, 0x01, 0x02, 0x03, 0x04, 0x05 }; - static const u8 dma_modes[] = { 0x77, 0x21, 0x20 }; - static const u8 drive_pci2[] = { 0x45, 0x44, 0x47, 0x46 }; - - struct pci_dev *dev = to_pci_dev(hwif->dev); - const u8 speed = drive->dma_mode; - u8 unit = drive->dn & 1; - - u8 ultra_enable = 0, ultra_timing = 0, dma_timing = 0; - - if (drive->dn >= ARRAY_SIZE(drive_pci2)) - return; - - pci_read_config_byte(dev, (0x56|hwif->channel), &ultra_timing); - pci_read_config_byte(dev, 0x54, &ultra_enable); - - ultra_timing &= ~(0x0F << (4*unit)); - ultra_enable &= ~(0x01 << drive->dn); - - if (speed >= XFER_UDMA_0) { - dma_timing |= dma_modes[2]; - ultra_timing |= (udma_modes[speed - XFER_UDMA_0] << (4 * unit)); - ultra_enable |= (0x01 << drive->dn); - } else if (speed >= XFER_MW_DMA_0) - dma_timing |= dma_modes[speed - XFER_MW_DMA_0]; - - pci_write_config_byte(dev, drive_pci2[drive->dn], dma_timing); - pci_write_config_byte(dev, (0x56|hwif->channel), ultra_timing); - pci_write_config_byte(dev, 0x54, ultra_enable); -} - -static int init_chipset_svwks(struct pci_dev *dev) -{ - unsigned int reg; - u8 btr; - - /* force Master Latency Timer value to 64 PCICLKs */ - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x40); - - /* OSB4 : South Bridge and IDE */ - if (dev->device == PCI_DEVICE_ID_SERVERWORKS_OSB4IDE) { - struct pci_dev *isa_dev = - pci_get_device(PCI_VENDOR_ID_SERVERWORKS, - PCI_DEVICE_ID_SERVERWORKS_OSB4, NULL); - if (isa_dev) { - pci_read_config_dword(isa_dev, 0x64, ®); - reg &= ~0x00002000; /* disable 600ns interrupt mask */ - if(!(reg & 0x00004000)) - printk(KERN_DEBUG DRV_NAME " %s: UDMA not BIOS " - "enabled.\n", pci_name(dev)); - reg |= 0x00004000; /* enable UDMA/33 support */ - pci_write_config_dword(isa_dev, 0x64, reg); - pci_dev_put(isa_dev); - } - } - - /* setup CSB5/CSB6 : South Bridge and IDE option RAID */ - else if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) || - (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) || - (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) { - - /* Third Channel Test */ - if (!(PCI_FUNC(dev->devfn) & 1)) { - struct pci_dev * findev = NULL; - u32 reg4c = 0; - findev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS, - PCI_DEVICE_ID_SERVERWORKS_CSB5, NULL); - if (findev) { - pci_read_config_dword(findev, 0x4C, ®4c); - reg4c &= ~0x000007FF; - reg4c |= 0x00000040; - reg4c |= 0x00000020; - pci_write_config_dword(findev, 0x4C, reg4c); - pci_dev_put(findev); - } - outb_p(0x06, 0x0c00); - dev->irq = inb_p(0x0c01); - } else { - struct pci_dev * findev = NULL; - u8 reg41 = 0; - - findev = pci_get_device(PCI_VENDOR_ID_SERVERWORKS, - PCI_DEVICE_ID_SERVERWORKS_CSB6, NULL); - if (findev) { - pci_read_config_byte(findev, 0x41, ®41); - reg41 &= ~0x40; - pci_write_config_byte(findev, 0x41, reg41); - pci_dev_put(findev); - } - /* - * This is a device pin issue on CSB6. - * Since there will be a future raid mode, - * early versions of the chipset require the - * interrupt pin to be set, and it is a compatibility - * mode issue. - */ - if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE) - dev->irq = 0; - } -// pci_read_config_dword(dev, 0x40, &pioreg) -// pci_write_config_dword(dev, 0x40, 0x99999999); -// pci_read_config_dword(dev, 0x44, &dmareg); -// pci_write_config_dword(dev, 0x44, 0xFFFFFFFF); - /* setup the UDMA Control register - * - * 1. clear bit 6 to enable DMA - * 2. enable DMA modes with bits 0-1 - * 00 : legacy - * 01 : udma2 - * 10 : udma2/udma4 - * 11 : udma2/udma4/udma5 - */ - pci_read_config_byte(dev, 0x5A, &btr); - btr &= ~0x40; - if (!(PCI_FUNC(dev->devfn) & 1)) - btr |= 0x2; - else - btr |= (dev->revision >= SVWKS_CSB5_REVISION_NEW) ? 0x3 : 0x2; - pci_write_config_byte(dev, 0x5A, btr); - } - /* Setup HT1000 SouthBridge Controller - Single Channel Only */ - else if (dev->device == PCI_DEVICE_ID_SERVERWORKS_HT1000IDE) { - pci_read_config_byte(dev, 0x5A, &btr); - btr &= ~0x40; - btr |= 0x3; - pci_write_config_byte(dev, 0x5A, btr); - } - - return 0; -} - -static u8 ata66_svwks_svwks(ide_hwif_t *hwif) -{ - return ATA_CBL_PATA80; -} - -/* On Dell PowerEdge servers with a CSB5/CSB6, the top two bits - * of the subsystem device ID indicate presence of an 80-pin cable. - * Bit 15 clear = secondary IDE channel does not have 80-pin cable. - * Bit 15 set = secondary IDE channel has 80-pin cable. - * Bit 14 clear = primary IDE channel does not have 80-pin cable. - * Bit 14 set = primary IDE channel has 80-pin cable. - */ -static u8 ata66_svwks_dell(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - - if (dev->subsystem_vendor == PCI_VENDOR_ID_DELL && - dev->vendor == PCI_VENDOR_ID_SERVERWORKS && - (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE || - dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE)) - return ((1 << (hwif->channel + 14)) & - dev->subsystem_device) ? ATA_CBL_PATA80 : ATA_CBL_PATA40; - return ATA_CBL_PATA40; -} - -/* Sun Cobalt Alpine hardware avoids the 80-pin cable - * detect issue by attaching the drives directly to the board. - * This check follows the Dell precedent (how scary is that?!) - * - * WARNING: this only works on Alpine hardware! - */ -static u8 ata66_svwks_cobalt(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - - if (dev->subsystem_vendor == PCI_VENDOR_ID_SUN && - dev->vendor == PCI_VENDOR_ID_SERVERWORKS && - dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB5IDE) - return ((1 << (hwif->channel + 14)) & - dev->subsystem_device) ? ATA_CBL_PATA80 : ATA_CBL_PATA40; - return ATA_CBL_PATA40; -} - -static u8 svwks_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - - /* Server Works */ - if (dev->subsystem_vendor == PCI_VENDOR_ID_SERVERWORKS) - return ata66_svwks_svwks (hwif); - - /* Dell PowerEdge */ - if (dev->subsystem_vendor == PCI_VENDOR_ID_DELL) - return ata66_svwks_dell (hwif); - - /* Cobalt Alpine */ - if (dev->subsystem_vendor == PCI_VENDOR_ID_SUN) - return ata66_svwks_cobalt (hwif); - - /* Per Specified Design by OEM, and ASIC Architect */ - if ((dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE) || - (dev->device == PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2)) - return ATA_CBL_PATA80; - - return ATA_CBL_PATA40; -} - -static const struct ide_port_ops osb4_port_ops = { - .set_pio_mode = svwks_set_pio_mode, - .set_dma_mode = svwks_set_dma_mode, -}; - -static const struct ide_port_ops svwks_port_ops = { - .set_pio_mode = svwks_set_pio_mode, - .set_dma_mode = svwks_set_dma_mode, - .udma_filter = svwks_udma_filter, - .cable_detect = svwks_cable_detect, -}; - -static const struct ide_port_info serverworks_chipsets[] = { - { /* 0: OSB4 */ - .name = DRV_NAME, - .init_chipset = init_chipset_svwks, - .port_ops = &osb4_port_ops, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = 0x00, /* UDMA is problematic on OSB4 */ - }, - { /* 1: CSB5 */ - .name = DRV_NAME, - .init_chipset = init_chipset_svwks, - .port_ops = &svwks_port_ops, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA5, - }, - { /* 2: CSB6 */ - .name = DRV_NAME, - .init_chipset = init_chipset_svwks, - .port_ops = &svwks_port_ops, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA5, - }, - { /* 3: CSB6-2 */ - .name = DRV_NAME, - .init_chipset = init_chipset_svwks, - .port_ops = &svwks_port_ops, - .host_flags = IDE_HFLAG_SINGLE, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA5, - }, - { /* 4: HT1000 */ - .name = DRV_NAME, - .init_chipset = init_chipset_svwks, - .port_ops = &svwks_port_ops, - .host_flags = IDE_HFLAG_SINGLE, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA5, - } -}; - -/** - * svwks_init_one - called when a OSB/CSB is found - * @dev: the svwks device - * @id: the matching pci id - * - * Called when the PCI registration layer (or the IDE initialization) - * finds a device matching our IDE device tables. - */ - -static int svwks_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct ide_port_info d; - u8 idx = id->driver_data; - - d = serverworks_chipsets[idx]; - - if (idx == 1) - d.host_flags |= IDE_HFLAG_CLEAR_SIMPLEX; - else if (idx == 2 || idx == 3) { - if ((PCI_FUNC(dev->devfn) & 1) == 0) { - if (pci_resource_start(dev, 0) != 0x01f1) - d.host_flags |= IDE_HFLAG_NON_BOOTABLE; - d.host_flags |= IDE_HFLAG_SINGLE; - } else - d.host_flags &= ~IDE_HFLAG_SINGLE; - } - - return ide_pci_init_one(dev, &d, NULL); -} - -static const struct pci_device_id svwks_pci_tbl[] = { - { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_OSB4IDE), 0 }, - { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB5IDE), 1 }, - { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE), 2 }, - { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_CSB6IDE2), 3 }, - { PCI_VDEVICE(SERVERWORKS, PCI_DEVICE_ID_SERVERWORKS_HT1000IDE), 4 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, svwks_pci_tbl); - -static struct pci_driver svwks_pci_driver = { - .name = "Serverworks_IDE", - .id_table = svwks_pci_tbl, - .probe = svwks_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init svwks_ide_init(void) -{ - return ide_pci_register_driver(&svwks_pci_driver); -} - -static void __exit svwks_ide_exit(void) -{ - pci_unregister_driver(&svwks_pci_driver); -} - -module_init(svwks_ide_init); -module_exit(svwks_ide_exit); - -MODULE_AUTHOR("Michael Aubry. Andrzej Krzysztofowicz, Andre Hedrick, Bartlomiej Zolnierkiewicz"); -MODULE_DESCRIPTION("PCI driver module for Serverworks OSB4/CSB5/CSB6 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/setup-pci.c b/drivers/ide/setup-pci.c deleted file mode 100644 index fdc8e813170c..000000000000 --- a/drivers/ide/setup-pci.c +++ /dev/null @@ -1,682 +0,0 @@ -/* - * Copyright (C) 1998-2000 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 1995-1998 Mark Lord - * Copyright (C) 2007-2009 Bartlomiej Zolnierkiewicz - * - * May be copied or modified under the terms of the GNU General Public License - */ - -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/export.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/ide.h> -#include <linux/dma-mapping.h> - -#include <asm/io.h> - -/** - * ide_setup_pci_baseregs - place a PCI IDE controller native - * @dev: PCI device of interface to switch native - * @name: Name of interface - * - * We attempt to place the PCI interface into PCI native mode. If - * we succeed the BARs are ok and the controller is in PCI mode. - * Returns 0 on success or an errno code. - * - * FIXME: if we program the interface and then fail to set the BARS - * we don't switch it back to legacy mode. Do we actually care ?? - */ - -static int ide_setup_pci_baseregs(struct pci_dev *dev, const char *name) -{ - u8 progif = 0; - - /* - * Place both IDE interfaces into PCI "native" mode: - */ - if (pci_read_config_byte(dev, PCI_CLASS_PROG, &progif) || - (progif & 5) != 5) { - if ((progif & 0xa) != 0xa) { - printk(KERN_INFO "%s %s: device not capable of full " - "native PCI mode\n", name, pci_name(dev)); - return -EOPNOTSUPP; - } - printk(KERN_INFO "%s %s: placing both ports into native PCI " - "mode\n", name, pci_name(dev)); - (void) pci_write_config_byte(dev, PCI_CLASS_PROG, progif|5); - if (pci_read_config_byte(dev, PCI_CLASS_PROG, &progif) || - (progif & 5) != 5) { - printk(KERN_ERR "%s %s: rewrite of PROGIF failed, " - "wanted 0x%04x, got 0x%04x\n", - name, pci_name(dev), progif | 5, progif); - return -EOPNOTSUPP; - } - } - return 0; -} - -#ifdef CONFIG_BLK_DEV_IDEDMA_PCI -static int ide_pci_clear_simplex(unsigned long dma_base, const char *name) -{ - u8 dma_stat = inb(dma_base + 2); - - outb(dma_stat & 0x60, dma_base + 2); - dma_stat = inb(dma_base + 2); - - return (dma_stat & 0x80) ? 1 : 0; -} - -/** - * ide_pci_dma_base - setup BMIBA - * @hwif: IDE interface - * @d: IDE port info - * - * Fetch the DMA Bus-Master-I/O-Base-Address (BMIBA) from PCI space. - */ - -unsigned long ide_pci_dma_base(ide_hwif_t *hwif, const struct ide_port_info *d) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long dma_base = 0; - - if (hwif->host_flags & IDE_HFLAG_MMIO) - return hwif->dma_base; - - if (hwif->mate && hwif->mate->dma_base) { - dma_base = hwif->mate->dma_base - (hwif->channel ? 0 : 8); - } else { - u8 baridx = (d->host_flags & IDE_HFLAG_CS5520) ? 2 : 4; - - dma_base = pci_resource_start(dev, baridx); - - if (dma_base == 0) { - printk(KERN_ERR "%s %s: DMA base is invalid\n", - d->name, pci_name(dev)); - return 0; - } - } - - if (hwif->channel) - dma_base += 8; - - return dma_base; -} -EXPORT_SYMBOL_GPL(ide_pci_dma_base); - -int ide_pci_check_simplex(ide_hwif_t *hwif, const struct ide_port_info *d) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 dma_stat; - - if (d->host_flags & (IDE_HFLAG_MMIO | IDE_HFLAG_CS5520)) - goto out; - - if (d->host_flags & IDE_HFLAG_CLEAR_SIMPLEX) { - if (ide_pci_clear_simplex(hwif->dma_base, d->name)) - printk(KERN_INFO "%s %s: simplex device: DMA forced\n", - d->name, pci_name(dev)); - goto out; - } - - /* - * If the device claims "simplex" DMA, this means that only one of - * the two interfaces can be trusted with DMA at any point in time - * (so we should enable DMA only on one of the two interfaces). - * - * FIXME: At this point we haven't probed the drives so we can't make - * the appropriate decision. Really we should defer this problem until - * we tune the drive then try to grab DMA ownership if we want to be - * the DMA end. This has to be become dynamic to handle hot-plug. - */ - dma_stat = hwif->dma_ops->dma_sff_read_status(hwif); - if ((dma_stat & 0x80) && hwif->mate && hwif->mate->dma_base) { - printk(KERN_INFO "%s %s: simplex device: DMA disabled\n", - d->name, pci_name(dev)); - return -1; - } -out: - return 0; -} -EXPORT_SYMBOL_GPL(ide_pci_check_simplex); - -/* - * Set up BM-DMA capability (PnP BIOS should have done this) - */ -int ide_pci_set_master(struct pci_dev *dev, const char *name) -{ - u16 pcicmd; - - pci_read_config_word(dev, PCI_COMMAND, &pcicmd); - - if ((pcicmd & PCI_COMMAND_MASTER) == 0) { - pci_set_master(dev); - - if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd) || - (pcicmd & PCI_COMMAND_MASTER) == 0) { - printk(KERN_ERR "%s %s: error updating PCICMD\n", - name, pci_name(dev)); - return -EIO; - } - } - - return 0; -} -EXPORT_SYMBOL_GPL(ide_pci_set_master); -#endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ - -void ide_setup_pci_noise(struct pci_dev *dev, const struct ide_port_info *d) -{ - printk(KERN_INFO "%s %s: IDE controller (0x%04x:0x%04x rev 0x%02x)\n", - d->name, pci_name(dev), - dev->vendor, dev->device, dev->revision); -} -EXPORT_SYMBOL_GPL(ide_setup_pci_noise); - - -/** - * ide_pci_enable - do PCI enables - * @dev: PCI device - * @bars: PCI BARs mask - * @d: IDE port info - * - * Enable the IDE PCI device. We attempt to enable the device in full - * but if that fails then we only need IO space. The PCI code should - * have setup the proper resources for us already for controllers in - * legacy mode. - * - * Returns zero on success or an error code - */ - -static int ide_pci_enable(struct pci_dev *dev, int bars, - const struct ide_port_info *d) -{ - int ret; - - if (pci_enable_device(dev)) { - ret = pci_enable_device_io(dev); - if (ret < 0) { - printk(KERN_WARNING "%s %s: couldn't enable device\n", - d->name, pci_name(dev)); - goto out; - } - printk(KERN_WARNING "%s %s: BIOS configuration fixed\n", - d->name, pci_name(dev)); - } - - /* - * assume all devices can do 32-bit DMA for now, we can add - * a DMA mask field to the struct ide_port_info if we need it - * (or let lower level driver set the DMA mask) - */ - ret = dma_set_mask(&dev->dev, DMA_BIT_MASK(32)); - if (ret < 0) { - printk(KERN_ERR "%s %s: can't set DMA mask\n", - d->name, pci_name(dev)); - goto out; - } - - ret = pci_request_selected_regions(dev, bars, d->name); - if (ret < 0) - printk(KERN_ERR "%s %s: can't reserve resources\n", - d->name, pci_name(dev)); -out: - return ret; -} - -/** - * ide_pci_configure - configure an unconfigured device - * @dev: PCI device - * @d: IDE port info - * - * Enable and configure the PCI device we have been passed. - * Returns zero on success or an error code. - */ - -static int ide_pci_configure(struct pci_dev *dev, const struct ide_port_info *d) -{ - u16 pcicmd = 0; - /* - * PnP BIOS was *supposed* to have setup this device, but we - * can do it ourselves, so long as the BIOS has assigned an IRQ - * (or possibly the device is using a "legacy header" for IRQs). - * Maybe the user deliberately *disabled* the device, - * but we'll eventually ignore it again if no drives respond. - */ - if (ide_setup_pci_baseregs(dev, d->name) || - pci_write_config_word(dev, PCI_COMMAND, pcicmd | PCI_COMMAND_IO)) { - printk(KERN_INFO "%s %s: device disabled (BIOS)\n", - d->name, pci_name(dev)); - return -ENODEV; - } - if (pci_read_config_word(dev, PCI_COMMAND, &pcicmd)) { - printk(KERN_ERR "%s %s: error accessing PCI regs\n", - d->name, pci_name(dev)); - return -EIO; - } - if (!(pcicmd & PCI_COMMAND_IO)) { - printk(KERN_ERR "%s %s: unable to enable IDE controller\n", - d->name, pci_name(dev)); - return -ENXIO; - } - return 0; -} - -/** - * ide_pci_check_iomem - check a register is I/O - * @dev: PCI device - * @d: IDE port info - * @bar: BAR number - * - * Checks if a BAR is configured and points to MMIO space. If so, - * return an error code. Otherwise return 0 - */ - -static int ide_pci_check_iomem(struct pci_dev *dev, const struct ide_port_info *d, - int bar) -{ - ulong flags = pci_resource_flags(dev, bar); - - /* Unconfigured ? */ - if (!flags || pci_resource_len(dev, bar) == 0) - return 0; - - /* I/O space */ - if (flags & IORESOURCE_IO) - return 0; - - /* Bad */ - return -EINVAL; -} - -/** - * ide_hw_configure - configure a struct ide_hw instance - * @dev: PCI device holding interface - * @d: IDE port info - * @port: port number - * @hw: struct ide_hw instance corresponding to this port - * - * Perform the initial set up for the hardware interface structure. This - * is done per interface port rather than per PCI device. There may be - * more than one port per device. - * - * Returns zero on success or an error code. - */ - -static int ide_hw_configure(struct pci_dev *dev, const struct ide_port_info *d, - unsigned int port, struct ide_hw *hw) -{ - unsigned long ctl = 0, base = 0; - - if ((d->host_flags & IDE_HFLAG_ISA_PORTS) == 0) { - if (ide_pci_check_iomem(dev, d, 2 * port) || - ide_pci_check_iomem(dev, d, 2 * port + 1)) { - printk(KERN_ERR "%s %s: I/O baseregs (BIOS) are " - "reported as MEM for port %d!\n", - d->name, pci_name(dev), port); - return -EINVAL; - } - - ctl = pci_resource_start(dev, 2*port+1); - base = pci_resource_start(dev, 2*port); - } else { - /* Use default values */ - ctl = port ? 0x374 : 0x3f4; - base = port ? 0x170 : 0x1f0; - } - - if (!base || !ctl) { - printk(KERN_ERR "%s %s: bad PCI BARs for port %d, skipping\n", - d->name, pci_name(dev), port); - return -EINVAL; - } - - memset(hw, 0, sizeof(*hw)); - hw->dev = &dev->dev; - ide_std_init_ports(hw, base, ctl | 2); - - return 0; -} - -#ifdef CONFIG_BLK_DEV_IDEDMA_PCI -/** - * ide_hwif_setup_dma - configure DMA interface - * @hwif: IDE interface - * @d: IDE port info - * - * Set up the DMA base for the interface. Enable the master bits as - * necessary and attempt to bring the device DMA into a ready to use - * state - */ - -int ide_hwif_setup_dma(ide_hwif_t *hwif, const struct ide_port_info *d) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - - if ((d->host_flags & IDE_HFLAG_NO_AUTODMA) == 0 || - ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && - (dev->class & 0x80))) { - unsigned long base = ide_pci_dma_base(hwif, d); - - if (base == 0) - return -1; - - hwif->dma_base = base; - - if (hwif->dma_ops == NULL) - hwif->dma_ops = &sff_dma_ops; - - if (ide_pci_check_simplex(hwif, d) < 0) - return -1; - - if (ide_pci_set_master(dev, d->name) < 0) - return -1; - - if (hwif->host_flags & IDE_HFLAG_MMIO) - printk(KERN_INFO " %s: MMIO-DMA\n", hwif->name); - else - printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n", - hwif->name, base, base + 7); - - hwif->extra_base = base + (hwif->channel ? 8 : 16); - - if (ide_allocate_dma_engine(hwif)) - return -1; - } - - return 0; -} -#endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ - -/** - * ide_setup_pci_controller - set up IDE PCI - * @dev: PCI device - * @bars: PCI BARs mask - * @d: IDE port info - * @noisy: verbose flag - * - * Set up the PCI and controller side of the IDE interface. This brings - * up the PCI side of the device, checks that the device is enabled - * and enables it if need be - */ - -static int ide_setup_pci_controller(struct pci_dev *dev, int bars, - const struct ide_port_info *d, int noisy) -{ - int ret; - u16 pcicmd; - - if (noisy) - ide_setup_pci_noise(dev, d); - - ret = ide_pci_enable(dev, bars, d); - if (ret < 0) - goto out; - - ret = pci_read_config_word(dev, PCI_COMMAND, &pcicmd); - if (ret < 0) { - printk(KERN_ERR "%s %s: error accessing PCI regs\n", - d->name, pci_name(dev)); - goto out_free_bars; - } - if (!(pcicmd & PCI_COMMAND_IO)) { /* is device disabled? */ - ret = ide_pci_configure(dev, d); - if (ret < 0) - goto out_free_bars; - printk(KERN_INFO "%s %s: device enabled (Linux)\n", - d->name, pci_name(dev)); - } - - goto out; - -out_free_bars: - pci_release_selected_regions(dev, bars); -out: - return ret; -} - -/** - * ide_pci_setup_ports - configure ports/devices on PCI IDE - * @dev: PCI device - * @d: IDE port info - * @hw: struct ide_hw instances corresponding to this PCI IDE device - * @hws: struct ide_hw pointers table to update - * - * Scan the interfaces attached to this device and do any - * necessary per port setup. Attach the devices and ask the - * generic DMA layer to do its work for us. - * - * Normally called automaticall from do_ide_pci_setup_device, - * but is also used directly as a helper function by some controllers - * where the chipset setup is not the default PCI IDE one. - */ - -void ide_pci_setup_ports(struct pci_dev *dev, const struct ide_port_info *d, - struct ide_hw *hw, struct ide_hw **hws) -{ - int channels = (d->host_flags & IDE_HFLAG_SINGLE) ? 1 : 2, port; - u8 tmp; - - /* - * Set up the IDE ports - */ - - for (port = 0; port < channels; ++port) { - const struct ide_pci_enablebit *e = &d->enablebits[port]; - - if (e->reg && (pci_read_config_byte(dev, e->reg, &tmp) || - (tmp & e->mask) != e->val)) { - printk(KERN_INFO "%s %s: IDE port disabled\n", - d->name, pci_name(dev)); - continue; /* port not enabled */ - } - - if (ide_hw_configure(dev, d, port, hw + port)) - continue; - - *(hws + port) = hw + port; - } -} -EXPORT_SYMBOL_GPL(ide_pci_setup_ports); - -/* - * ide_setup_pci_device() looks at the primary/secondary interfaces - * on a PCI IDE device and, if they are enabled, prepares the IDE driver - * for use with them. This generic code works for most PCI chipsets. - * - * One thing that is not standardized is the location of the - * primary/secondary interface "enable/disable" bits. For chipsets that - * we "know" about, this information is in the struct ide_port_info; - * for all other chipsets, we just assume both interfaces are enabled. - */ -static int do_ide_setup_pci_device(struct pci_dev *dev, - const struct ide_port_info *d, - u8 noisy) -{ - int pciirq, ret; - - /* - * Can we trust the reported IRQ? - */ - pciirq = dev->irq; - - /* - * This allows offboard ide-pci cards the enable a BIOS, - * verify interrupt settings of split-mirror pci-config - * space, place chipset into init-mode, and/or preserve - * an interrupt if the card is not native ide support. - */ - ret = d->init_chipset ? d->init_chipset(dev) : 0; - if (ret < 0) - goto out; - - if (ide_pci_is_in_compatibility_mode(dev)) { - if (noisy) - printk(KERN_INFO "%s %s: not 100%% native mode: will " - "probe irqs later\n", d->name, pci_name(dev)); - pciirq = 0; - } else if (!pciirq && noisy) { - printk(KERN_WARNING "%s %s: bad irq (%d): will probe later\n", - d->name, pci_name(dev), pciirq); - } else if (noisy) { - printk(KERN_INFO "%s %s: 100%% native mode on irq %d\n", - d->name, pci_name(dev), pciirq); - } - - ret = pciirq; -out: - return ret; -} - -int ide_pci_init_two(struct pci_dev *dev1, struct pci_dev *dev2, - const struct ide_port_info *d, void *priv) -{ - struct pci_dev *pdev[] = { dev1, dev2 }; - struct ide_host *host; - int ret, i, n_ports = dev2 ? 4 : 2, bars; - struct ide_hw hw[4], *hws[] = { NULL, NULL, NULL, NULL }; - - if (d->host_flags & IDE_HFLAG_SINGLE) - bars = (1 << 2) - 1; - else - bars = (1 << 4) - 1; - - if ((d->host_flags & IDE_HFLAG_NO_DMA) == 0) { - if (d->host_flags & IDE_HFLAG_CS5520) - bars |= (1 << 2); - else - bars |= (1 << 4); - } - - for (i = 0; i < n_ports / 2; i++) { - ret = ide_setup_pci_controller(pdev[i], bars, d, !i); - if (ret < 0) { - if (i == 1) - pci_release_selected_regions(pdev[0], bars); - goto out; - } - - ide_pci_setup_ports(pdev[i], d, &hw[i*2], &hws[i*2]); - } - - host = ide_host_alloc(d, hws, n_ports); - if (host == NULL) { - ret = -ENOMEM; - goto out_free_bars; - } - - host->dev[0] = &dev1->dev; - if (dev2) - host->dev[1] = &dev2->dev; - - host->host_priv = priv; - host->irq_flags = IRQF_SHARED; - - pci_set_drvdata(pdev[0], host); - if (dev2) - pci_set_drvdata(pdev[1], host); - - for (i = 0; i < n_ports / 2; i++) { - ret = do_ide_setup_pci_device(pdev[i], d, !i); - - /* - * FIXME: Mom, mom, they stole me the helper function to undo - * do_ide_setup_pci_device() on the first device! - */ - if (ret < 0) - goto out_free_bars; - - /* fixup IRQ */ - if (ide_pci_is_in_compatibility_mode(pdev[i])) { - hw[i*2].irq = pci_get_legacy_ide_irq(pdev[i], 0); - hw[i*2 + 1].irq = pci_get_legacy_ide_irq(pdev[i], 1); - } else - hw[i*2 + 1].irq = hw[i*2].irq = ret; - } - - ret = ide_host_register(host, d, hws); - if (ret) - ide_host_free(host); - else - goto out; - -out_free_bars: - i = n_ports / 2; - while (i--) - pci_release_selected_regions(pdev[i], bars); -out: - return ret; -} -EXPORT_SYMBOL_GPL(ide_pci_init_two); - -int ide_pci_init_one(struct pci_dev *dev, const struct ide_port_info *d, - void *priv) -{ - return ide_pci_init_two(dev, NULL, d, priv); -} -EXPORT_SYMBOL_GPL(ide_pci_init_one); - -void ide_pci_remove(struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - struct pci_dev *dev2 = host->dev[1] ? to_pci_dev(host->dev[1]) : NULL; - int bars; - - if (host->host_flags & IDE_HFLAG_SINGLE) - bars = (1 << 2) - 1; - else - bars = (1 << 4) - 1; - - if ((host->host_flags & IDE_HFLAG_NO_DMA) == 0) { - if (host->host_flags & IDE_HFLAG_CS5520) - bars |= (1 << 2); - else - bars |= (1 << 4); - } - - ide_host_remove(host); - - if (dev2) - pci_release_selected_regions(dev2, bars); - pci_release_selected_regions(dev, bars); - - if (dev2) - pci_disable_device(dev2); - pci_disable_device(dev); -} -EXPORT_SYMBOL_GPL(ide_pci_remove); - -#ifdef CONFIG_PM -int ide_pci_suspend(struct pci_dev *dev, pm_message_t state) -{ - pci_save_state(dev); - pci_disable_device(dev); - pci_set_power_state(dev, pci_choose_state(dev, state)); - - return 0; -} -EXPORT_SYMBOL_GPL(ide_pci_suspend); - -int ide_pci_resume(struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - int rc; - - pci_set_power_state(dev, PCI_D0); - - rc = pci_enable_device(dev); - if (rc) - return rc; - - pci_restore_state(dev); - pci_set_master(dev); - - if (host->init_chipset) - host->init_chipset(dev); - - return 0; -} -EXPORT_SYMBOL_GPL(ide_pci_resume); -#endif diff --git a/drivers/ide/siimage.c b/drivers/ide/siimage.c deleted file mode 100644 index c4b20f350b84..000000000000 --- a/drivers/ide/siimage.c +++ /dev/null @@ -1,843 +0,0 @@ -/* - * Copyright (C) 2001-2002 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2003 Red Hat - * Copyright (C) 2007-2008 MontaVista Software, Inc. - * Copyright (C) 2007-2008 Bartlomiej Zolnierkiewicz - * - * May be copied or modified under the terms of the GNU General Public License - * - * Documentation for CMD680: - * http://gkernel.sourceforge.net/specs/sii/sii-0680a-v1.31.pdf.bz2 - * - * Documentation for SiI 3112: - * http://gkernel.sourceforge.net/specs/sii/3112A_SiI-DS-0095-B2.pdf.bz2 - * - * Errata and other documentation only available under NDA. - * - * - * FAQ Items: - * If you are using Marvell SATA-IDE adapters with Maxtor drives - * ensure the system is set up for ATA100/UDMA5, not UDMA6. - * - * If you are using WD drives with SATA bridges you must set the - * drive to "Single". "Master" will hang. - * - * If you have strange problems with nVidia chipset systems please - * see the SI support documentation and update your system BIOS - * if necessary - * - * The Dell DRAC4 has some interesting features including effectively hot - * unplugging/replugging the virtual CD interface when the DRAC is reset. - * This often causes drivers/ide/siimage to panic but is ok with the rather - * smarter code in libata. - * - * TODO: - * - VDMA support - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> -#include <linux/io.h> - -#define DRV_NAME "siimage" - -/** - * pdev_is_sata - check if device is SATA - * @pdev: PCI device to check - * - * Returns true if this is a SATA controller - */ - -static int pdev_is_sata(struct pci_dev *pdev) -{ -#ifdef CONFIG_BLK_DEV_IDE_SATA - switch (pdev->device) { - case PCI_DEVICE_ID_SII_3112: - case PCI_DEVICE_ID_SII_1210SA: - return 1; - case PCI_DEVICE_ID_SII_680: - return 0; - } - BUG(); -#endif - return 0; -} - -/** - * is_sata - check if hwif is SATA - * @hwif: interface to check - * - * Returns true if this is a SATA controller - */ - -static inline int is_sata(ide_hwif_t *hwif) -{ - return pdev_is_sata(to_pci_dev(hwif->dev)); -} - -/** - * siimage_selreg - return register base - * @hwif: interface - * @r: config offset - * - * Turn a config register offset into the right address in either - * PCI space or MMIO space to access the control register in question - * Thankfully this is a configuration operation, so isn't performance - * critical. - */ - -static unsigned long siimage_selreg(ide_hwif_t *hwif, int r) -{ - unsigned long base = (unsigned long)hwif->hwif_data; - - base += 0xA0 + r; - if (hwif->host_flags & IDE_HFLAG_MMIO) - base += hwif->channel << 6; - else - base += hwif->channel << 4; - return base; -} - -/** - * siimage_seldev - return register base - * @hwif: interface - * @r: config offset - * - * Turn a config register offset into the right address in either - * PCI space or MMIO space to access the control register in question - * including accounting for the unit shift. - */ - -static inline unsigned long siimage_seldev(ide_drive_t *drive, int r) -{ - ide_hwif_t *hwif = drive->hwif; - unsigned long base = (unsigned long)hwif->hwif_data; - u8 unit = drive->dn & 1; - - base += 0xA0 + r; - if (hwif->host_flags & IDE_HFLAG_MMIO) - base += hwif->channel << 6; - else - base += hwif->channel << 4; - base |= unit << unit; - return base; -} - -static u8 sil_ioread8(struct pci_dev *dev, unsigned long addr) -{ - struct ide_host *host = pci_get_drvdata(dev); - u8 tmp = 0; - - if (host->host_priv) - tmp = readb((void __iomem *)addr); - else - pci_read_config_byte(dev, addr, &tmp); - - return tmp; -} - -static u16 sil_ioread16(struct pci_dev *dev, unsigned long addr) -{ - struct ide_host *host = pci_get_drvdata(dev); - u16 tmp = 0; - - if (host->host_priv) - tmp = readw((void __iomem *)addr); - else - pci_read_config_word(dev, addr, &tmp); - - return tmp; -} - -static void sil_iowrite8(struct pci_dev *dev, u8 val, unsigned long addr) -{ - struct ide_host *host = pci_get_drvdata(dev); - - if (host->host_priv) - writeb(val, (void __iomem *)addr); - else - pci_write_config_byte(dev, addr, val); -} - -static void sil_iowrite16(struct pci_dev *dev, u16 val, unsigned long addr) -{ - struct ide_host *host = pci_get_drvdata(dev); - - if (host->host_priv) - writew(val, (void __iomem *)addr); - else - pci_write_config_word(dev, addr, val); -} - -static void sil_iowrite32(struct pci_dev *dev, u32 val, unsigned long addr) -{ - struct ide_host *host = pci_get_drvdata(dev); - - if (host->host_priv) - writel(val, (void __iomem *)addr); - else - pci_write_config_dword(dev, addr, val); -} - -/** - * sil_udma_filter - compute UDMA mask - * @drive: IDE device - * - * Compute the available UDMA speeds for the device on the interface. - * - * For the CMD680 this depends on the clocking mode (scsc), for the - * SI3112 SATA controller life is a bit simpler. - */ - -static u8 sil_pata_udma_filter(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long base = (unsigned long)hwif->hwif_data; - u8 scsc, mask = 0; - - base += (hwif->host_flags & IDE_HFLAG_MMIO) ? 0x4A : 0x8A; - - scsc = sil_ioread8(dev, base); - - switch (scsc & 0x30) { - case 0x10: /* 133 */ - mask = ATA_UDMA6; - break; - case 0x20: /* 2xPCI */ - mask = ATA_UDMA6; - break; - case 0x00: /* 100 */ - mask = ATA_UDMA5; - break; - default: /* Disabled ? */ - BUG(); - } - - return mask; -} - -static u8 sil_sata_udma_filter(ide_drive_t *drive) -{ - char *m = (char *)&drive->id[ATA_ID_PROD]; - - return strstr(m, "Maxtor") ? ATA_UDMA5 : ATA_UDMA6; -} - -/** - * sil_set_pio_mode - set host controller for PIO mode - * @hwif: port - * @drive: drive - * - * Load the timing settings for this device mode into the - * controller. - */ - -static void sil_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - static const u16 tf_speed[] = { 0x328a, 0x2283, 0x1281, 0x10c3, 0x10c1 }; - static const u16 data_speed[] = { 0x328a, 0x2283, 0x1104, 0x10c3, 0x10c1 }; - - struct pci_dev *dev = to_pci_dev(hwif->dev); - ide_drive_t *pair = ide_get_pair_dev(drive); - u32 speedt = 0; - u16 speedp = 0; - unsigned long addr = siimage_seldev(drive, 0x04); - unsigned long tfaddr = siimage_selreg(hwif, 0x02); - unsigned long base = (unsigned long)hwif->hwif_data; - const u8 pio = drive->pio_mode - XFER_PIO_0; - u8 tf_pio = pio; - u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; - u8 addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84) - : (mmio ? 0xB4 : 0x80); - u8 mode = 0; - u8 unit = drive->dn & 1; - - /* trim *taskfile* PIO to the slowest of the master/slave */ - if (pair) { - u8 pair_pio = pair->pio_mode - XFER_PIO_0; - - if (pair_pio < tf_pio) - tf_pio = pair_pio; - } - - /* cheat for now and use the docs */ - speedp = data_speed[pio]; - speedt = tf_speed[tf_pio]; - - sil_iowrite16(dev, speedp, addr); - sil_iowrite16(dev, speedt, tfaddr); - - /* now set up IORDY */ - speedp = sil_ioread16(dev, tfaddr - 2); - speedp &= ~0x200; - - mode = sil_ioread8(dev, base + addr_mask); - mode &= ~(unit ? 0x30 : 0x03); - - if (ide_pio_need_iordy(drive, pio)) { - speedp |= 0x200; - mode |= unit ? 0x10 : 0x01; - } - - sil_iowrite16(dev, speedp, tfaddr - 2); - sil_iowrite8(dev, mode, base + addr_mask); -} - -/** - * sil_set_dma_mode - set host controller for DMA mode - * @hwif: port - * @drive: drive - * - * Tune the SiI chipset for the desired DMA mode. - */ - -static void sil_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - static const u8 ultra6[] = { 0x0F, 0x0B, 0x07, 0x05, 0x03, 0x02, 0x01 }; - static const u8 ultra5[] = { 0x0C, 0x07, 0x05, 0x04, 0x02, 0x01 }; - static const u16 dma[] = { 0x2208, 0x10C2, 0x10C1 }; - - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long base = (unsigned long)hwif->hwif_data; - u16 ultra = 0, multi = 0; - u8 mode = 0, unit = drive->dn & 1; - u8 mmio = (hwif->host_flags & IDE_HFLAG_MMIO) ? 1 : 0; - u8 scsc = 0, addr_mask = hwif->channel ? (mmio ? 0xF4 : 0x84) - : (mmio ? 0xB4 : 0x80); - unsigned long ma = siimage_seldev(drive, 0x08); - unsigned long ua = siimage_seldev(drive, 0x0C); - const u8 speed = drive->dma_mode; - - scsc = sil_ioread8 (dev, base + (mmio ? 0x4A : 0x8A)); - mode = sil_ioread8 (dev, base + addr_mask); - multi = sil_ioread16(dev, ma); - ultra = sil_ioread16(dev, ua); - - mode &= ~(unit ? 0x30 : 0x03); - ultra &= ~0x3F; - scsc = ((scsc & 0x30) == 0x00) ? 0 : 1; - - scsc = is_sata(hwif) ? 1 : scsc; - - if (speed >= XFER_UDMA_0) { - multi = dma[2]; - ultra |= scsc ? ultra6[speed - XFER_UDMA_0] : - ultra5[speed - XFER_UDMA_0]; - mode |= unit ? 0x30 : 0x03; - } else { - multi = dma[speed - XFER_MW_DMA_0]; - mode |= unit ? 0x20 : 0x02; - } - - sil_iowrite8 (dev, mode, base + addr_mask); - sil_iowrite16(dev, multi, ma); - sil_iowrite16(dev, ultra, ua); -} - -static int sil_test_irq(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long addr = siimage_selreg(hwif, 1); - u8 val = sil_ioread8(dev, addr); - - /* Return 1 if INTRQ asserted */ - return (val & 8) ? 1 : 0; -} - -/** - * siimage_mmio_dma_test_irq - check we caused an IRQ - * @drive: drive we are testing - * - * Check if we caused an IDE DMA interrupt. We may also have caused - * SATA status interrupts, if so we clean them up and continue. - */ - -static int siimage_mmio_dma_test_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - void __iomem *sata_error_addr - = (void __iomem *)hwif->sata_scr[SATA_ERROR_OFFSET]; - - if (sata_error_addr) { - unsigned long base = (unsigned long)hwif->hwif_data; - u32 ext_stat = readl((void __iomem *)(base + 0x10)); - u8 watchdog = 0; - - if (ext_stat & ((hwif->channel) ? 0x40 : 0x10)) { - u32 sata_error = readl(sata_error_addr); - - writel(sata_error, sata_error_addr); - watchdog = (sata_error & 0x00680000) ? 1 : 0; - printk(KERN_WARNING "%s: sata_error = 0x%08x, " - "watchdog = %d, %s\n", - drive->name, sata_error, watchdog, __func__); - } else - watchdog = (ext_stat & 0x8000) ? 1 : 0; - - ext_stat >>= 16; - if (!(ext_stat & 0x0404) && !watchdog) - return 0; - } - - /* return 1 if INTR asserted */ - if (readb((void __iomem *)(hwif->dma_base + ATA_DMA_STATUS)) & 4) - return 1; - - return 0; -} - -static int siimage_dma_test_irq(ide_drive_t *drive) -{ - if (drive->hwif->host_flags & IDE_HFLAG_MMIO) - return siimage_mmio_dma_test_irq(drive); - else - return ide_dma_test_irq(drive); -} - -/** - * sil_sata_reset_poll - wait for SATA reset - * @drive: drive we are resetting - * - * Poll the SATA phy and see whether it has come back from the dead - * yet. - */ - -static blk_status_t sil_sata_reset_poll(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - void __iomem *sata_status_addr - = (void __iomem *)hwif->sata_scr[SATA_STATUS_OFFSET]; - - if (sata_status_addr) { - /* SATA Status is available only when in MMIO mode */ - u32 sata_stat = readl(sata_status_addr); - - if ((sata_stat & 0x03) != 0x03) { - printk(KERN_WARNING "%s: reset phy dead, status=0x%08x\n", - hwif->name, sata_stat); - return BLK_STS_IOERR; - } - } - - return BLK_STS_OK; -} - -/** - * sil_sata_pre_reset - reset hook - * @drive: IDE device being reset - * - * For the SATA devices we need to handle recalibration/geometry - * differently - */ - -static void sil_sata_pre_reset(ide_drive_t *drive) -{ - if (drive->media == ide_disk) { - drive->special_flags &= - ~(IDE_SFLAG_SET_GEOMETRY | IDE_SFLAG_RECALIBRATE); - } -} - -/** - * init_chipset_siimage - set up an SI device - * @dev: PCI device - * - * Perform the initial PCI set up for this device. Attempt to switch - * to 133 MHz clocking if the system isn't already set up to do it. - */ - -static int init_chipset_siimage(struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - void __iomem *ioaddr = host->host_priv; - unsigned long base, scsc_addr; - u8 rev = dev->revision, tmp; - - pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE, rev ? 1 : 255); - - if (ioaddr) - pci_set_master(dev); - - base = (unsigned long)ioaddr; - - if (ioaddr && pdev_is_sata(dev)) { - u32 tmp32, irq_mask; - - /* make sure IDE0/1 interrupts are not masked */ - irq_mask = (1 << 22) | (1 << 23); - tmp32 = readl(ioaddr + 0x48); - if (tmp32 & irq_mask) { - tmp32 &= ~irq_mask; - writel(tmp32, ioaddr + 0x48); - readl(ioaddr + 0x48); /* flush */ - } - writel(0, ioaddr + 0x148); - writel(0, ioaddr + 0x1C8); - } - - sil_iowrite8(dev, 0, base ? (base + 0xB4) : 0x80); - sil_iowrite8(dev, 0, base ? (base + 0xF4) : 0x84); - - scsc_addr = base ? (base + 0x4A) : 0x8A; - tmp = sil_ioread8(dev, scsc_addr); - - switch (tmp & 0x30) { - case 0x00: - /* On 100 MHz clocking, try and switch to 133 MHz */ - sil_iowrite8(dev, tmp | 0x10, scsc_addr); - break; - case 0x30: - /* Clocking is disabled, attempt to force 133MHz clocking. */ - sil_iowrite8(dev, tmp & ~0x20, scsc_addr); - case 0x10: - /* On 133Mhz clocking. */ - break; - case 0x20: - /* On PCIx2 clocking. */ - break; - } - - tmp = sil_ioread8(dev, scsc_addr); - - sil_iowrite8 (dev, 0x72, base + 0xA1); - sil_iowrite16(dev, 0x328A, base + 0xA2); - sil_iowrite32(dev, 0x62DD62DD, base + 0xA4); - sil_iowrite32(dev, 0x43924392, base + 0xA8); - sil_iowrite32(dev, 0x40094009, base + 0xAC); - sil_iowrite8 (dev, 0x72, base ? (base + 0xE1) : 0xB1); - sil_iowrite16(dev, 0x328A, base ? (base + 0xE2) : 0xB2); - sil_iowrite32(dev, 0x62DD62DD, base ? (base + 0xE4) : 0xB4); - sil_iowrite32(dev, 0x43924392, base ? (base + 0xE8) : 0xB8); - sil_iowrite32(dev, 0x40094009, base ? (base + 0xEC) : 0xBC); - - if (base && pdev_is_sata(dev)) { - writel(0xFFFF0000, ioaddr + 0x108); - writel(0xFFFF0000, ioaddr + 0x188); - writel(0x00680000, ioaddr + 0x148); - writel(0x00680000, ioaddr + 0x1C8); - } - - /* report the clocking mode of the controller */ - if (!pdev_is_sata(dev)) { - static const char *clk_str[] = - { "== 100", "== 133", "== 2X PCI", "DISABLED!" }; - - tmp >>= 4; - printk(KERN_INFO DRV_NAME " %s: BASE CLOCK %s\n", - pci_name(dev), clk_str[tmp & 3]); - } - - return 0; -} - -/** - * init_mmio_iops_siimage - set up the iops for MMIO - * @hwif: interface to set up - * - * The basic setup here is fairly simple, we can use standard MMIO - * operations. However we do have to set the taskfile register offsets - * by hand as there isn't a standard defined layout for them this time. - * - * The hardware supports buffered taskfiles and also some rather nice - * extended PRD tables. For better SI3112 support use the libata driver - */ - -static void init_mmio_iops_siimage(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct ide_host *host = pci_get_drvdata(dev); - void *addr = host->host_priv; - u8 ch = hwif->channel; - struct ide_io_ports *io_ports = &hwif->io_ports; - unsigned long base; - - /* - * Fill in the basic hwif bits - */ - hwif->host_flags |= IDE_HFLAG_MMIO; - - hwif->hwif_data = addr; - - /* - * Now set up the hw. We have to do this ourselves as the - * MMIO layout isn't the same as the standard port based I/O. - */ - memset(io_ports, 0, sizeof(*io_ports)); - - base = (unsigned long)addr; - if (ch) - base += 0xC0; - else - base += 0x80; - - /* - * The buffered task file doesn't have status/control, so we - * can't currently use it sanely since we want to use LBA48 mode. - */ - io_ports->data_addr = base; - io_ports->error_addr = base + 1; - io_ports->nsect_addr = base + 2; - io_ports->lbal_addr = base + 3; - io_ports->lbam_addr = base + 4; - io_ports->lbah_addr = base + 5; - io_ports->device_addr = base + 6; - io_ports->status_addr = base + 7; - io_ports->ctl_addr = base + 10; - - if (pdev_is_sata(dev)) { - base = (unsigned long)addr; - if (ch) - base += 0x80; - hwif->sata_scr[SATA_STATUS_OFFSET] = base + 0x104; - hwif->sata_scr[SATA_ERROR_OFFSET] = base + 0x108; - hwif->sata_scr[SATA_CONTROL_OFFSET] = base + 0x100; - } - - hwif->irq = dev->irq; - - hwif->dma_base = (unsigned long)addr + (ch ? 0x08 : 0x00); -} - -static int is_dev_seagate_sata(ide_drive_t *drive) -{ - const char *s = (const char *)&drive->id[ATA_ID_PROD]; - unsigned len = strnlen(s, ATA_ID_PROD_LEN); - - if ((len > 4) && (!memcmp(s, "ST", 2))) - if ((!memcmp(s + len - 2, "AS", 2)) || - (!memcmp(s + len - 3, "ASL", 3))) { - printk(KERN_INFO "%s: applying pessimistic Seagate " - "errata fix\n", drive->name); - return 1; - } - - return 0; -} - -/** - * sil_quirkproc - post probe fixups - * @drive: drive - * - * Called after drive probe we use this to decide whether the - * Seagate fixup must be applied. This used to be in init_iops but - * that can occur before we know what drives are present. - */ - -static void sil_quirkproc(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - - /* Try and rise the rqsize */ - if (!is_sata(hwif) || !is_dev_seagate_sata(drive)) - hwif->rqsize = 128; -} - -/** - * init_iops_siimage - set up iops - * @hwif: interface to set up - * - * Do the basic setup for the SIIMAGE hardware interface - * and then do the MMIO setup if we can. This is the first - * look in we get for setting up the hwif so that we - * can get the iops right before using them. - */ - -static void init_iops_siimage(ide_hwif_t *hwif) -{ - struct ide_host *host = dev_get_drvdata(hwif->dev); - - hwif->hwif_data = NULL; - - /* Pessimal until we finish probing */ - hwif->rqsize = 15; - - if (host->host_priv) - init_mmio_iops_siimage(hwif); -} - -/** - * sil_cable_detect - cable detection - * @hwif: interface to check - * - * Check for the presence of an ATA66 capable cable on the interface. - */ - -static u8 sil_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long addr = siimage_selreg(hwif, 0); - u8 ata66 = sil_ioread8(dev, addr); - - return (ata66 & 0x01) ? ATA_CBL_PATA80 : ATA_CBL_PATA40; -} - -static const struct ide_port_ops sil_pata_port_ops = { - .set_pio_mode = sil_set_pio_mode, - .set_dma_mode = sil_set_dma_mode, - .quirkproc = sil_quirkproc, - .test_irq = sil_test_irq, - .udma_filter = sil_pata_udma_filter, - .cable_detect = sil_cable_detect, -}; - -static const struct ide_port_ops sil_sata_port_ops = { - .set_pio_mode = sil_set_pio_mode, - .set_dma_mode = sil_set_dma_mode, - .reset_poll = sil_sata_reset_poll, - .pre_reset = sil_sata_pre_reset, - .quirkproc = sil_quirkproc, - .test_irq = sil_test_irq, - .udma_filter = sil_sata_udma_filter, - .cable_detect = sil_cable_detect, -}; - -static const struct ide_dma_ops sil_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = ide_dma_start, - .dma_end = ide_dma_end, - .dma_test_irq = siimage_dma_test_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_lost_irq = ide_dma_lost_irq, - .dma_sff_read_status = ide_dma_sff_read_status, -}; - -#define DECLARE_SII_DEV(p_ops) \ - { \ - .name = DRV_NAME, \ - .init_chipset = init_chipset_siimage, \ - .init_iops = init_iops_siimage, \ - .port_ops = p_ops, \ - .dma_ops = &sil_dma_ops, \ - .pio_mask = ATA_PIO4, \ - .mwdma_mask = ATA_MWDMA2, \ - .udma_mask = ATA_UDMA6, \ - } - -static const struct ide_port_info siimage_chipsets[] = { - /* 0: SiI680 */ DECLARE_SII_DEV(&sil_pata_port_ops), - /* 1: SiI3112 */ DECLARE_SII_DEV(&sil_sata_port_ops) -}; - -/** - * siimage_init_one - PCI layer discovery entry - * @dev: PCI device - * @id: ident table entry - * - * Called by the PCI code when it finds an SiI680 or SiI3112 controller. - * We then use the IDE PCI generic helper to do most of the work. - */ - -static int siimage_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - void __iomem *ioaddr = NULL; - resource_size_t bar5 = pci_resource_start(dev, 5); - unsigned long barsize = pci_resource_len(dev, 5); - int rc; - struct ide_port_info d; - u8 idx = id->driver_data; - u8 BA5_EN; - - d = siimage_chipsets[idx]; - - if (idx) { - static int first = 1; - - if (first) { - printk(KERN_INFO DRV_NAME ": For full SATA support you " - "should use the libata sata_sil module.\n"); - first = 0; - } - - d.host_flags |= IDE_HFLAG_NO_ATAPI_DMA; - } - - rc = pci_enable_device(dev); - if (rc) - return rc; - - pci_read_config_byte(dev, 0x8A, &BA5_EN); - if ((BA5_EN & 0x01) || bar5) { - /* - * Drop back to PIO if we can't map the MMIO. Some systems - * seem to get terminally confused in the PCI spaces. - */ - if (!request_mem_region(bar5, barsize, d.name)) { - printk(KERN_WARNING DRV_NAME " %s: MMIO ports not " - "available\n", pci_name(dev)); - } else { - ioaddr = pci_ioremap_bar(dev, 5); - if (ioaddr == NULL) - release_mem_region(bar5, barsize); - } - } - - rc = ide_pci_init_one(dev, &d, ioaddr); - if (rc) { - if (ioaddr) { - iounmap(ioaddr); - release_mem_region(bar5, barsize); - } - pci_disable_device(dev); - } - - return rc; -} - -static void siimage_remove(struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - void __iomem *ioaddr = host->host_priv; - - ide_pci_remove(dev); - - if (ioaddr) { - resource_size_t bar5 = pci_resource_start(dev, 5); - unsigned long barsize = pci_resource_len(dev, 5); - - iounmap(ioaddr); - release_mem_region(bar5, barsize); - } - - pci_disable_device(dev); -} - -static const struct pci_device_id siimage_pci_tbl[] = { - { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_680), 0 }, -#ifdef CONFIG_BLK_DEV_IDE_SATA - { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_3112), 1 }, - { PCI_VDEVICE(CMD, PCI_DEVICE_ID_SII_1210SA), 1 }, -#endif - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, siimage_pci_tbl); - -static struct pci_driver siimage_pci_driver = { - .name = "SiI_IDE", - .id_table = siimage_pci_tbl, - .probe = siimage_init_one, - .remove = siimage_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init siimage_ide_init(void) -{ - return ide_pci_register_driver(&siimage_pci_driver); -} - -static void __exit siimage_ide_exit(void) -{ - pci_unregister_driver(&siimage_pci_driver); -} - -module_init(siimage_ide_init); -module_exit(siimage_ide_exit); - -MODULE_AUTHOR("Andre Hedrick, Alan Cox"); -MODULE_DESCRIPTION("PCI driver module for SiI IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/sis5513.c b/drivers/ide/sis5513.c deleted file mode 100644 index 1a700bef6c56..000000000000 --- a/drivers/ide/sis5513.c +++ /dev/null @@ -1,637 +0,0 @@ -/* - * Copyright (C) 1999-2000 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2002 Lionel Bouton <Lionel.Bouton@inet6.fr>, Maintainer - * Copyright (C) 2003 Vojtech Pavlik <vojtech@suse.cz> - * Copyright (C) 2007-2009 Bartlomiej Zolnierkiewicz - * - * May be copied or modified under the terms of the GNU General Public License - * - * - * Thanks : - * - * SiS Taiwan : for direct support and hardware. - * Daniela Engert : for initial ATA100 advices and numerous others. - * John Fremlin, Manfred Spraul, Dave Morgan, Peter Kjellerstedt : - * for checking code correctness, providing patches. - * - * - * Original tests and design on the SiS620 chipset. - * ATA100 tests and design on the SiS735 chipset. - * ATA16/33 support from specs - * ATA133 support for SiS961/962 by L.C. Chang <lcchang@sis.com.tw> - * ATA133 961/962/963 fixes by Vojtech Pavlik <vojtech@suse.cz> - * - * Documentation: - * SiS chipset documentation available under NDA to companies only - * (not to individuals). - */ - -/* - * The original SiS5513 comes from a SiS5511/55112/5513 chipset. The original - * SiS5513 was also used in the SiS5596/5513 chipset. Thus if we see a SiS5511 - * or SiS5596, we can assume we see the first MWDMA-16 capable SiS5513 chip. - * - * Later SiS chipsets integrated the 5513 functionality into the NorthBridge, - * starting with SiS5571 and up to SiS745. The PCI ID didn't change, though. We - * can figure out that we have a more modern and more capable 5513 by looking - * for the respective NorthBridge IDs. - * - * Even later (96x family) SiS chipsets use the MuTIOL link and place the 5513 - * into the SouthBrige. Here we cannot rely on looking up the NorthBridge PCI - * ID, while the now ATA-133 capable 5513 still has the same PCI ID. - * Fortunately the 5513 can be 'unmasked' by fiddling with some config space - * bits, changing its device id to the true one - 5517 for 961 and 5518 for - * 962/963. - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ide.h> - -#define DRV_NAME "sis5513" - -/* registers layout and init values are chipset family dependent */ -#undef ATA_16 -#define ATA_16 0x01 -#define ATA_33 0x02 -#define ATA_66 0x03 -#define ATA_100a 0x04 /* SiS730/SiS550 is ATA100 with ATA66 layout */ -#define ATA_100 0x05 -#define ATA_133a 0x06 /* SiS961b with 133 support */ -#define ATA_133 0x07 /* SiS962/963 */ - -static u8 chipset_family; - -/* - * Devices supported - */ -static const struct { - const char *name; - u16 host_id; - u8 chipset_family; - u8 flags; -} SiSHostChipInfo[] = { - { "SiS968", PCI_DEVICE_ID_SI_968, ATA_133 }, - { "SiS966", PCI_DEVICE_ID_SI_966, ATA_133 }, - { "SiS965", PCI_DEVICE_ID_SI_965, ATA_133 }, - { "SiS745", PCI_DEVICE_ID_SI_745, ATA_100 }, - { "SiS735", PCI_DEVICE_ID_SI_735, ATA_100 }, - { "SiS733", PCI_DEVICE_ID_SI_733, ATA_100 }, - { "SiS635", PCI_DEVICE_ID_SI_635, ATA_100 }, - { "SiS633", PCI_DEVICE_ID_SI_633, ATA_100 }, - - { "SiS730", PCI_DEVICE_ID_SI_730, ATA_100a }, - { "SiS550", PCI_DEVICE_ID_SI_550, ATA_100a }, - - { "SiS640", PCI_DEVICE_ID_SI_640, ATA_66 }, - { "SiS630", PCI_DEVICE_ID_SI_630, ATA_66 }, - { "SiS620", PCI_DEVICE_ID_SI_620, ATA_66 }, - { "SiS540", PCI_DEVICE_ID_SI_540, ATA_66 }, - { "SiS530", PCI_DEVICE_ID_SI_530, ATA_66 }, - - { "SiS5600", PCI_DEVICE_ID_SI_5600, ATA_33 }, - { "SiS5598", PCI_DEVICE_ID_SI_5598, ATA_33 }, - { "SiS5597", PCI_DEVICE_ID_SI_5597, ATA_33 }, - { "SiS5591/2", PCI_DEVICE_ID_SI_5591, ATA_33 }, - { "SiS5582", PCI_DEVICE_ID_SI_5582, ATA_33 }, - { "SiS5581", PCI_DEVICE_ID_SI_5581, ATA_33 }, - - { "SiS5596", PCI_DEVICE_ID_SI_5596, ATA_16 }, - { "SiS5571", PCI_DEVICE_ID_SI_5571, ATA_16 }, - { "SiS5517", PCI_DEVICE_ID_SI_5517, ATA_16 }, - { "SiS551x", PCI_DEVICE_ID_SI_5511, ATA_16 }, -}; - -/* Cycle time bits and values vary across chip dma capabilities - These three arrays hold the register layout and the values to set. - Indexed by chipset_family and (dma_mode - XFER_UDMA_0) */ - -/* {0, ATA_16, ATA_33, ATA_66, ATA_100a, ATA_100, ATA_133} */ -static u8 cycle_time_offset[] = { 0, 0, 5, 4, 4, 0, 0 }; -static u8 cycle_time_range[] = { 0, 0, 2, 3, 3, 4, 4 }; -static u8 cycle_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = { - { 0, 0, 0, 0, 0, 0, 0 }, /* no UDMA */ - { 0, 0, 0, 0, 0, 0, 0 }, /* no UDMA */ - { 3, 2, 1, 0, 0, 0, 0 }, /* ATA_33 */ - { 7, 5, 3, 2, 1, 0, 0 }, /* ATA_66 */ - { 7, 5, 3, 2, 1, 0, 0 }, /* ATA_100a (730 specific), - different cycle_time range and offset */ - { 11, 7, 5, 4, 2, 1, 0 }, /* ATA_100 */ - { 15, 10, 7, 5, 3, 2, 1 }, /* ATA_133a (earliest 691 southbridges) */ - { 15, 10, 7, 5, 3, 2, 1 }, /* ATA_133 */ -}; -/* CRC Valid Setup Time vary across IDE clock setting 33/66/100/133 - See SiS962 data sheet for more detail */ -static u8 cvs_time_value[][XFER_UDMA_6 - XFER_UDMA_0 + 1] = { - { 0, 0, 0, 0, 0, 0, 0 }, /* no UDMA */ - { 0, 0, 0, 0, 0, 0, 0 }, /* no UDMA */ - { 2, 1, 1, 0, 0, 0, 0 }, - { 4, 3, 2, 1, 0, 0, 0 }, - { 4, 3, 2, 1, 0, 0, 0 }, - { 6, 4, 3, 1, 1, 1, 0 }, - { 9, 6, 4, 2, 2, 2, 2 }, - { 9, 6, 4, 2, 2, 2, 2 }, -}; -/* Initialize time, Active time, Recovery time vary across - IDE clock settings. These 3 arrays hold the register value - for PIO0/1/2/3/4 and DMA0/1/2 mode in order */ -static u8 ini_time_value[][8] = { - { 0, 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0, 0 }, - { 2, 1, 0, 0, 0, 1, 0, 0 }, - { 4, 3, 1, 1, 1, 3, 1, 1 }, - { 4, 3, 1, 1, 1, 3, 1, 1 }, - { 6, 4, 2, 2, 2, 4, 2, 2 }, - { 9, 6, 3, 3, 3, 6, 3, 3 }, - { 9, 6, 3, 3, 3, 6, 3, 3 }, -}; -static u8 act_time_value[][8] = { - { 0, 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0, 0 }, - { 9, 9, 9, 2, 2, 7, 2, 2 }, - { 19, 19, 19, 5, 4, 14, 5, 4 }, - { 19, 19, 19, 5, 4, 14, 5, 4 }, - { 28, 28, 28, 7, 6, 21, 7, 6 }, - { 38, 38, 38, 10, 9, 28, 10, 9 }, - { 38, 38, 38, 10, 9, 28, 10, 9 }, -}; -static u8 rco_time_value[][8] = { - { 0, 0, 0, 0, 0, 0, 0, 0 }, - { 0, 0, 0, 0, 0, 0, 0, 0 }, - { 9, 2, 0, 2, 0, 7, 1, 1 }, - { 19, 5, 1, 5, 2, 16, 3, 2 }, - { 19, 5, 1, 5, 2, 16, 3, 2 }, - { 30, 9, 3, 9, 4, 25, 6, 4 }, - { 40, 12, 4, 12, 5, 34, 12, 5 }, - { 40, 12, 4, 12, 5, 34, 12, 5 }, -}; - -/* - * Printing configuration - */ -/* Used for chipset type printing at boot time */ -static char *chipset_capability[] = { - "ATA", "ATA 16", - "ATA 33", "ATA 66", - "ATA 100 (1st gen)", "ATA 100 (2nd gen)", - "ATA 133 (1st gen)", "ATA 133 (2nd gen)" -}; - -/* - * Configuration functions - */ - -static u8 sis_ata133_get_base(ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - u32 reg54 = 0; - - pci_read_config_dword(dev, 0x54, ®54); - - return ((reg54 & 0x40000000) ? 0x70 : 0x40) + drive->dn * 4; -} - -static void sis_ata16_program_timings(ide_drive_t *drive, const u8 mode) -{ - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - u16 t1 = 0; - u8 drive_pci = 0x40 + drive->dn * 2; - - const u16 pio_timings[] = { 0x000, 0x607, 0x404, 0x303, 0x301 }; - const u16 mwdma_timings[] = { 0x008, 0x302, 0x301 }; - - pci_read_config_word(dev, drive_pci, &t1); - - /* clear active/recovery timings */ - t1 &= ~0x070f; - if (mode >= XFER_MW_DMA_0) { - if (chipset_family > ATA_16) - t1 &= ~0x8000; /* disable UDMA */ - t1 |= mwdma_timings[mode - XFER_MW_DMA_0]; - } else - t1 |= pio_timings[mode - XFER_PIO_0]; - - pci_write_config_word(dev, drive_pci, t1); -} - -static void sis_ata100_program_timings(ide_drive_t *drive, const u8 mode) -{ - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - u8 t1, drive_pci = 0x40 + drive->dn * 2; - - /* timing bits: 7:4 active 3:0 recovery */ - const u8 pio_timings[] = { 0x00, 0x67, 0x44, 0x33, 0x31 }; - const u8 mwdma_timings[] = { 0x08, 0x32, 0x31 }; - - if (mode >= XFER_MW_DMA_0) { - u8 t2 = 0; - - pci_read_config_byte(dev, drive_pci, &t2); - t2 &= ~0x80; /* disable UDMA */ - pci_write_config_byte(dev, drive_pci, t2); - - t1 = mwdma_timings[mode - XFER_MW_DMA_0]; - } else - t1 = pio_timings[mode - XFER_PIO_0]; - - pci_write_config_byte(dev, drive_pci + 1, t1); -} - -static void sis_ata133_program_timings(ide_drive_t *drive, const u8 mode) -{ - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - u32 t1 = 0; - u8 drive_pci = sis_ata133_get_base(drive), clk, idx; - - pci_read_config_dword(dev, drive_pci, &t1); - - t1 &= 0xc0c00fff; - clk = (t1 & 0x08) ? ATA_133 : ATA_100; - if (mode >= XFER_MW_DMA_0) { - t1 &= ~0x04; /* disable UDMA */ - idx = mode - XFER_MW_DMA_0 + 5; - } else - idx = mode - XFER_PIO_0; - t1 |= ini_time_value[clk][idx] << 12; - t1 |= act_time_value[clk][idx] << 16; - t1 |= rco_time_value[clk][idx] << 24; - - pci_write_config_dword(dev, drive_pci, t1); -} - -static void sis_program_timings(ide_drive_t *drive, const u8 mode) -{ - if (chipset_family < ATA_100) /* ATA_16/33/66/100a */ - sis_ata16_program_timings(drive, mode); - else if (chipset_family < ATA_133) /* ATA_100/133a */ - sis_ata100_program_timings(drive, mode); - else /* ATA_133 */ - sis_ata133_program_timings(drive, mode); -} - -static void config_drive_art_rwp(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 reg4bh = 0; - u8 rw_prefetch = 0; - - pci_read_config_byte(dev, 0x4b, ®4bh); - - rw_prefetch = reg4bh & ~(0x11 << drive->dn); - - if (drive->media == ide_disk) - rw_prefetch |= 0x11 << drive->dn; - - if (reg4bh != rw_prefetch) - pci_write_config_byte(dev, 0x4b, rw_prefetch); -} - -static void sis_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - config_drive_art_rwp(drive); - sis_program_timings(drive, drive->pio_mode); -} - -static void sis_ata133_program_udma_timings(ide_drive_t *drive, const u8 mode) -{ - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - u32 regdw = 0; - u8 drive_pci = sis_ata133_get_base(drive), clk, idx; - - pci_read_config_dword(dev, drive_pci, ®dw); - - regdw |= 0x04; - regdw &= 0xfffff00f; - /* check if ATA133 enable */ - clk = (regdw & 0x08) ? ATA_133 : ATA_100; - idx = mode - XFER_UDMA_0; - regdw |= cycle_time_value[clk][idx] << 4; - regdw |= cvs_time_value[clk][idx] << 8; - - pci_write_config_dword(dev, drive_pci, regdw); -} - -static void sis_ata33_program_udma_timings(ide_drive_t *drive, const u8 mode) -{ - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - u8 drive_pci = 0x40 + drive->dn * 2, reg = 0, i = chipset_family; - - pci_read_config_byte(dev, drive_pci + 1, ®); - - /* force the UDMA bit on if we want to use UDMA */ - reg |= 0x80; - /* clean reg cycle time bits */ - reg &= ~((0xff >> (8 - cycle_time_range[i])) << cycle_time_offset[i]); - /* set reg cycle time bits */ - reg |= cycle_time_value[i][mode - XFER_UDMA_0] << cycle_time_offset[i]; - - pci_write_config_byte(dev, drive_pci + 1, reg); -} - -static void sis_program_udma_timings(ide_drive_t *drive, const u8 mode) -{ - if (chipset_family >= ATA_133) /* ATA_133 */ - sis_ata133_program_udma_timings(drive, mode); - else /* ATA_33/66/100a/100/133a */ - sis_ata33_program_udma_timings(drive, mode); -} - -static void sis_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - const u8 speed = drive->dma_mode; - - if (speed >= XFER_UDMA_0) - sis_program_udma_timings(drive, speed); - else - sis_program_timings(drive, speed); -} - -static u8 sis_ata133_udma_filter(ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - u32 regdw = 0; - u8 drive_pci = sis_ata133_get_base(drive); - - pci_read_config_dword(dev, drive_pci, ®dw); - - /* if ATA133 disable, we should not set speed above UDMA5 */ - return (regdw & 0x08) ? ATA_UDMA6 : ATA_UDMA5; -} - -static int sis_find_family(struct pci_dev *dev) -{ - struct pci_dev *host; - int i = 0; - - chipset_family = 0; - - for (i = 0; i < ARRAY_SIZE(SiSHostChipInfo) && !chipset_family; i++) { - - host = pci_get_device(PCI_VENDOR_ID_SI, SiSHostChipInfo[i].host_id, NULL); - - if (!host) - continue; - - chipset_family = SiSHostChipInfo[i].chipset_family; - - /* Special case for SiS630 : 630S/ET is ATA_100a */ - if (SiSHostChipInfo[i].host_id == PCI_DEVICE_ID_SI_630) { - if (host->revision >= 0x30) - chipset_family = ATA_100a; - } - pci_dev_put(host); - - printk(KERN_INFO DRV_NAME " %s: %s %s controller\n", - pci_name(dev), SiSHostChipInfo[i].name, - chipset_capability[chipset_family]); - } - - if (!chipset_family) { /* Belongs to pci-quirks */ - - u32 idemisc; - u16 trueid; - - /* Disable ID masking and register remapping */ - pci_read_config_dword(dev, 0x54, &idemisc); - pci_write_config_dword(dev, 0x54, (idemisc & 0x7fffffff)); - pci_read_config_word(dev, PCI_DEVICE_ID, &trueid); - pci_write_config_dword(dev, 0x54, idemisc); - - if (trueid == 0x5518) { - printk(KERN_INFO DRV_NAME " %s: SiS 962/963 MuTIOL IDE UDMA133 controller\n", - pci_name(dev)); - chipset_family = ATA_133; - - /* Check for 5513 compatibility mapping - * We must use this, else the port enabled code will fail, - * as it expects the enablebits at 0x4a. - */ - if ((idemisc & 0x40000000) == 0) { - pci_write_config_dword(dev, 0x54, idemisc | 0x40000000); - printk(KERN_INFO DRV_NAME " %s: Switching to 5513 register mapping\n", - pci_name(dev)); - } - } - } - - if (!chipset_family) { /* Belongs to pci-quirks */ - - struct pci_dev *lpc_bridge; - u16 trueid; - u8 prefctl; - u8 idecfg; - - pci_read_config_byte(dev, 0x4a, &idecfg); - pci_write_config_byte(dev, 0x4a, idecfg | 0x10); - pci_read_config_word(dev, PCI_DEVICE_ID, &trueid); - pci_write_config_byte(dev, 0x4a, idecfg); - - if (trueid == 0x5517) { /* SiS 961/961B */ - - lpc_bridge = pci_get_slot(dev->bus, 0x10); /* Bus 0, Dev 2, Fn 0 */ - pci_read_config_byte(dev, 0x49, &prefctl); - pci_dev_put(lpc_bridge); - - if (lpc_bridge->revision == 0x10 && (prefctl & 0x80)) { - printk(KERN_INFO DRV_NAME " %s: SiS 961B MuTIOL IDE UDMA133 controller\n", - pci_name(dev)); - chipset_family = ATA_133a; - } else { - printk(KERN_INFO DRV_NAME " %s: SiS 961 MuTIOL IDE UDMA100 controller\n", - pci_name(dev)); - chipset_family = ATA_100; - } - } - } - - return chipset_family; -} - -static int init_chipset_sis5513(struct pci_dev *dev) -{ - /* Make general config ops here - 1/ tell IDE channels to operate in Compatibility mode only - 2/ tell old chips to allow per drive IDE timings */ - - u8 reg; - u16 regw; - - switch (chipset_family) { - case ATA_133: - /* SiS962 operation mode */ - pci_read_config_word(dev, 0x50, ®w); - if (regw & 0x08) - pci_write_config_word(dev, 0x50, regw&0xfff7); - pci_read_config_word(dev, 0x52, ®w); - if (regw & 0x08) - pci_write_config_word(dev, 0x52, regw&0xfff7); - break; - case ATA_133a: - case ATA_100: - /* Fixup latency */ - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x80); - /* Set compatibility bit */ - pci_read_config_byte(dev, 0x49, ®); - if (!(reg & 0x01)) - pci_write_config_byte(dev, 0x49, reg|0x01); - break; - case ATA_100a: - case ATA_66: - /* Fixup latency */ - pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0x10); - - /* On ATA_66 chips the bit was elsewhere */ - pci_read_config_byte(dev, 0x52, ®); - if (!(reg & 0x04)) - pci_write_config_byte(dev, 0x52, reg|0x04); - break; - case ATA_33: - /* On ATA_33 we didn't have a single bit to set */ - pci_read_config_byte(dev, 0x09, ®); - if ((reg & 0x0f) != 0x00) - pci_write_config_byte(dev, 0x09, reg&0xf0); - fallthrough; - case ATA_16: - /* force per drive recovery and active timings - needed on ATA_33 and below chips */ - pci_read_config_byte(dev, 0x52, ®); - if (!(reg & 0x08)) - pci_write_config_byte(dev, 0x52, reg|0x08); - break; - } - - return 0; -} - -struct sis_laptop { - u16 device; - u16 subvendor; - u16 subdevice; -}; - -static const struct sis_laptop sis_laptop[] = { - /* devid, subvendor, subdev */ - { 0x5513, 0x1043, 0x1107 }, /* ASUS A6K */ - { 0x5513, 0x1734, 0x105f }, /* FSC Amilo A1630 */ - { 0x5513, 0x1071, 0x8640 }, /* EasyNote K5305 */ - /* end marker */ - { 0, } -}; - -static u8 sis_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *pdev = to_pci_dev(hwif->dev); - const struct sis_laptop *lap = &sis_laptop[0]; - u8 ata66 = 0; - - while (lap->device) { - if (lap->device == pdev->device && - lap->subvendor == pdev->subsystem_vendor && - lap->subdevice == pdev->subsystem_device) - return ATA_CBL_PATA40_SHORT; - lap++; - } - - if (chipset_family >= ATA_133) { - u16 regw = 0; - u16 reg_addr = hwif->channel ? 0x52: 0x50; - pci_read_config_word(pdev, reg_addr, ®w); - ata66 = (regw & 0x8000) ? 0 : 1; - } else if (chipset_family >= ATA_66) { - u8 reg48h = 0; - u8 mask = hwif->channel ? 0x20 : 0x10; - pci_read_config_byte(pdev, 0x48, ®48h); - ata66 = (reg48h & mask) ? 0 : 1; - } - - return ata66 ? ATA_CBL_PATA80 : ATA_CBL_PATA40; -} - -static const struct ide_port_ops sis_port_ops = { - .set_pio_mode = sis_set_pio_mode, - .set_dma_mode = sis_set_dma_mode, - .cable_detect = sis_cable_detect, -}; - -static const struct ide_port_ops sis_ata133_port_ops = { - .set_pio_mode = sis_set_pio_mode, - .set_dma_mode = sis_set_dma_mode, - .udma_filter = sis_ata133_udma_filter, - .cable_detect = sis_cable_detect, -}; - -static const struct ide_port_info sis5513_chipset = { - .name = DRV_NAME, - .init_chipset = init_chipset_sis5513, - .enablebits = { {0x4a, 0x02, 0x02}, {0x4a, 0x04, 0x04} }, - .host_flags = IDE_HFLAG_NO_AUTODMA, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, -}; - -static int sis5513_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct ide_port_info d = sis5513_chipset; - u8 udma_rates[] = { 0x00, 0x00, 0x07, 0x1f, 0x3f, 0x3f, 0x7f, 0x7f }; - int rc; - - rc = pci_enable_device(dev); - if (rc) - return rc; - - if (sis_find_family(dev) == 0) - return -ENOTSUPP; - - if (chipset_family >= ATA_133) - d.port_ops = &sis_ata133_port_ops; - else - d.port_ops = &sis_port_ops; - - d.udma_mask = udma_rates[chipset_family]; - - return ide_pci_init_one(dev, &d, NULL); -} - -static void sis5513_remove(struct pci_dev *dev) -{ - ide_pci_remove(dev); - pci_disable_device(dev); -} - -static const struct pci_device_id sis5513_pci_tbl[] = { - { PCI_VDEVICE(SI, PCI_DEVICE_ID_SI_5513), 0 }, - { PCI_VDEVICE(SI, PCI_DEVICE_ID_SI_5518), 0 }, - { PCI_VDEVICE(SI, PCI_DEVICE_ID_SI_1180), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, sis5513_pci_tbl); - -static struct pci_driver sis5513_pci_driver = { - .name = "SIS_IDE", - .id_table = sis5513_pci_tbl, - .probe = sis5513_init_one, - .remove = sis5513_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init sis5513_ide_init(void) -{ - return ide_pci_register_driver(&sis5513_pci_driver); -} - -static void __exit sis5513_ide_exit(void) -{ - pci_unregister_driver(&sis5513_pci_driver); -} - -module_init(sis5513_ide_init); -module_exit(sis5513_ide_exit); - -MODULE_AUTHOR("Lionel Bouton, L C Chang, Andre Hedrick, Vojtech Pavlik"); -MODULE_DESCRIPTION("PCI driver module for SIS IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/sl82c105.c b/drivers/ide/sl82c105.c deleted file mode 100644 index 5c24c420c438..000000000000 --- a/drivers/ide/sl82c105.c +++ /dev/null @@ -1,367 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * SL82C105/Winbond 553 IDE driver - * - * Maintainer unknown. - * - * Drive tuning added from Rebel.com's kernel sources - * -- Russell King (15/11/98) linux@arm.linux.org.uk - * - * Merge in Russell's HW workarounds, fix various problems - * with the timing registers setup. - * -- Benjamin Herrenschmidt (01/11/03) benh@kernel.crashing.org - * - * Copyright (C) 2006-2007,2009 MontaVista Software, Inc. <source@mvista.com> - * Copyright (C) 2007 Bartlomiej Zolnierkiewicz - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/ide.h> - -#include <asm/io.h> - -#define DRV_NAME "sl82c105" - -/* - * SL82C105 PCI config register 0x40 bits. - */ -#define CTRL_IDE_IRQB (1 << 30) -#define CTRL_IDE_IRQA (1 << 28) -#define CTRL_LEGIRQ (1 << 11) -#define CTRL_P1F16 (1 << 5) -#define CTRL_P1EN (1 << 4) -#define CTRL_P0F16 (1 << 1) -#define CTRL_P0EN (1 << 0) - -/* - * Convert a PIO mode and cycle time to the required on/off times - * for the interface. This has protection against runaway timings. - */ -static unsigned int get_pio_timings(ide_drive_t *drive, u8 pio) -{ - struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); - unsigned int cmd_on, cmd_off; - u8 iordy = 0; - - cmd_on = (t->active + 29) / 30; - cmd_off = (ide_pio_cycle_time(drive, pio) - 30 * cmd_on + 29) / 30; - - if (cmd_on == 0) - cmd_on = 1; - - if (cmd_off == 0) - cmd_off = 1; - - if (ide_pio_need_iordy(drive, pio)) - iordy = 0x40; - - return (cmd_on - 1) << 8 | (cmd_off - 1) | iordy; -} - -/* - * Configure the chipset for PIO mode. - */ -static void sl82c105_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long timings = (unsigned long)ide_get_drivedata(drive); - int reg = 0x44 + drive->dn * 4; - u16 drv_ctrl; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - drv_ctrl = get_pio_timings(drive, pio); - - /* - * Store the PIO timings so that we can restore them - * in case DMA will be turned off... - */ - timings &= 0xffff0000; - timings |= drv_ctrl; - ide_set_drivedata(drive, (void *)timings); - - pci_write_config_word(dev, reg, drv_ctrl); - pci_read_config_word (dev, reg, &drv_ctrl); - - printk(KERN_DEBUG "%s: selected %s (%dns) (%04X)\n", drive->name, - ide_xfer_verbose(pio + XFER_PIO_0), - ide_pio_cycle_time(drive, pio), drv_ctrl); -} - -/* - * Configure the chipset for DMA mode. - */ -static void sl82c105_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - static u16 mwdma_timings[] = {0x0707, 0x0201, 0x0200}; - unsigned long timings = (unsigned long)ide_get_drivedata(drive); - u16 drv_ctrl; - const u8 speed = drive->dma_mode; - - drv_ctrl = mwdma_timings[speed - XFER_MW_DMA_0]; - - /* - * Store the DMA timings so that we can actually program - * them when DMA will be turned on... - */ - timings &= 0x0000ffff; - timings |= (unsigned long)drv_ctrl << 16; - ide_set_drivedata(drive, (void *)timings); -} - -static int sl82c105_test_irq(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u32 val, mask = hwif->channel ? CTRL_IDE_IRQB : CTRL_IDE_IRQA; - - pci_read_config_dword(dev, 0x40, &val); - - return (val & mask) ? 1 : 0; -} - -/* - * The SL82C105 holds off all IDE interrupts while in DMA mode until - * all DMA activity is completed. Sometimes this causes problems (eg, - * when the drive wants to report an error condition). - * - * 0x7e is a "chip testing" register. Bit 2 resets the DMA controller - * state machine. We need to kick this to work around various bugs. - */ -static inline void sl82c105_reset_host(struct pci_dev *dev) -{ - u16 val; - - pci_read_config_word(dev, 0x7e, &val); - pci_write_config_word(dev, 0x7e, val | (1 << 2)); - pci_write_config_word(dev, 0x7e, val & ~(1 << 2)); -} - -/* - * If we get an IRQ timeout, it might be that the DMA state machine - * got confused. Fix from Todd Inglett. Details from Winbond. - * - * This function is called when the IDE timer expires, the drive - * indicates that it is READY, and we were waiting for DMA to complete. - */ -static void sl82c105_dma_lost_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - u32 val, mask = hwif->channel ? CTRL_IDE_IRQB : CTRL_IDE_IRQA; - u8 dma_cmd; - - printk(KERN_WARNING "sl82c105: lost IRQ, resetting host\n"); - - /* - * Check the raw interrupt from the drive. - */ - pci_read_config_dword(dev, 0x40, &val); - if (val & mask) - printk(KERN_INFO "sl82c105: drive was requesting IRQ, " - "but host lost it\n"); - - /* - * Was DMA enabled? If so, disable it - we're resetting the - * host. The IDE layer will be handling the drive for us. - */ - dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); - if (dma_cmd & 1) { - outb(dma_cmd & ~1, hwif->dma_base + ATA_DMA_CMD); - printk(KERN_INFO "sl82c105: DMA was enabled\n"); - } - - sl82c105_reset_host(dev); -} - -/* - * ATAPI devices can cause the SL82C105 DMA state machine to go gaga. - * Winbond recommend that the DMA state machine is reset prior to - * setting the bus master DMA enable bit. - * - * The generic IDE core will have disabled the BMEN bit before this - * function is called. - */ -static void sl82c105_dma_start(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - struct pci_dev *dev = to_pci_dev(hwif->dev); - int reg = 0x44 + drive->dn * 4; - - pci_write_config_word(dev, reg, - (unsigned long)ide_get_drivedata(drive) >> 16); - - sl82c105_reset_host(dev); - ide_dma_start(drive); -} - -static void sl82c105_dma_clear(ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - - sl82c105_reset_host(dev); -} - -static int sl82c105_dma_end(ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - int reg = 0x44 + drive->dn * 4; - int ret = ide_dma_end(drive); - - pci_write_config_word(dev, reg, - (unsigned long)ide_get_drivedata(drive)); - - return ret; -} - -/* - * ATA reset will clear the 16 bits mode in the control - * register, we need to reprogram it - */ -static void sl82c105_resetproc(ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(drive->hwif->dev); - u32 val; - - pci_read_config_dword(dev, 0x40, &val); - val |= (CTRL_P1F16 | CTRL_P0F16); - pci_write_config_dword(dev, 0x40, val); -} - -/* - * Return the revision of the Winbond bridge - * which this function is part of. - */ -static u8 sl82c105_bridge_revision(struct pci_dev *dev) -{ - struct pci_dev *bridge; - - /* - * The bridge should be part of the same device, but function 0. - */ - bridge = pci_get_domain_bus_and_slot(pci_domain_nr(dev->bus), - dev->bus->number, - PCI_DEVFN(PCI_SLOT(dev->devfn), 0)); - if (!bridge) - return -1; - - /* - * Make sure it is a Winbond 553 and is an ISA bridge. - */ - if (bridge->vendor != PCI_VENDOR_ID_WINBOND || - bridge->device != PCI_DEVICE_ID_WINBOND_83C553 || - bridge->class >> 8 != PCI_CLASS_BRIDGE_ISA) { - pci_dev_put(bridge); - return -1; - } - /* - * We need to find function 0's revision, not function 1 - */ - pci_dev_put(bridge); - - return bridge->revision; -} - -/* - * Enable the PCI device - * - * --BenH: It's arch fixup code that should enable channels that - * have not been enabled by firmware. I decided we can still enable - * channel 0 here at least, but channel 1 has to be enabled by - * firmware or arch code. We still set both to 16 bits mode. - */ -static int init_chipset_sl82c105(struct pci_dev *dev) -{ - u32 val; - - pci_read_config_dword(dev, 0x40, &val); - val |= CTRL_P0EN | CTRL_P0F16 | CTRL_P1F16; - pci_write_config_dword(dev, 0x40, val); - - return 0; -} - -static const struct ide_port_ops sl82c105_port_ops = { - .set_pio_mode = sl82c105_set_pio_mode, - .set_dma_mode = sl82c105_set_dma_mode, - .resetproc = sl82c105_resetproc, - .test_irq = sl82c105_test_irq, -}; - -static const struct ide_dma_ops sl82c105_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = sl82c105_dma_start, - .dma_end = sl82c105_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = sl82c105_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_clear = sl82c105_dma_clear, - .dma_sff_read_status = ide_dma_sff_read_status, -}; - -static const struct ide_port_info sl82c105_chipset = { - .name = DRV_NAME, - .init_chipset = init_chipset_sl82c105, - .enablebits = {{0x40,0x01,0x01}, {0x40,0x10,0x10}}, - .port_ops = &sl82c105_port_ops, - .dma_ops = &sl82c105_dma_ops, - .host_flags = IDE_HFLAG_IO_32BIT | - IDE_HFLAG_UNMASK_IRQS | - IDE_HFLAG_SERIALIZE_DMA | - IDE_HFLAG_NO_AUTODMA, - .pio_mask = ATA_PIO5, - .mwdma_mask = ATA_MWDMA2, -}; - -static int sl82c105_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct ide_port_info d = sl82c105_chipset; - u8 rev = sl82c105_bridge_revision(dev); - - if (rev <= 5) { - /* - * Never ever EVER under any circumstances enable - * DMA when the bridge is this old. - */ - printk(KERN_INFO DRV_NAME ": Winbond W83C553 bridge " - "revision %d, BM-DMA disabled\n", rev); - d.dma_ops = NULL; - d.mwdma_mask = 0; - d.host_flags &= ~IDE_HFLAG_SERIALIZE_DMA; - } - - return ide_pci_init_one(dev, &d, NULL); -} - -static const struct pci_device_id sl82c105_pci_tbl[] = { - { PCI_VDEVICE(WINBOND, PCI_DEVICE_ID_WINBOND_82C105), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, sl82c105_pci_tbl); - -static struct pci_driver sl82c105_pci_driver = { - .name = "W82C105_IDE", - .id_table = sl82c105_pci_tbl, - .probe = sl82c105_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init sl82c105_ide_init(void) -{ - return ide_pci_register_driver(&sl82c105_pci_driver); -} - -static void __exit sl82c105_ide_exit(void) -{ - pci_unregister_driver(&sl82c105_pci_driver); -} - -module_init(sl82c105_ide_init); -module_exit(sl82c105_ide_exit); - -MODULE_DESCRIPTION("PCI driver module for W82C105 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/slc90e66.c b/drivers/ide/slc90e66.c deleted file mode 100644 index f521d5ebf916..000000000000 --- a/drivers/ide/slc90e66.c +++ /dev/null @@ -1,182 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 2000-2002 Andre Hedrick <andre@linux-ide.org> - * Copyright (C) 2006-2007 MontaVista Software, Inc. <source@mvista.com> - * - * This is a look-alike variation of the ICH0 PIIX4 Ultra-66, - * but this keeps the ISA-Bridge and slots alive. - * - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#define DRV_NAME "slc90e66" - -static DEFINE_SPINLOCK(slc90e66_lock); - -static void slc90e66_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - int is_slave = drive->dn & 1; - int master_port = hwif->channel ? 0x42 : 0x40; - int slave_port = 0x44; - unsigned long flags; - u16 master_data; - u8 slave_data; - int control = 0; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - /* ISP RTC */ - static const u8 timings[][2] = { - { 0, 0 }, - { 0, 0 }, - { 1, 0 }, - { 2, 1 }, - { 2, 3 }, }; - - spin_lock_irqsave(&slc90e66_lock, flags); - pci_read_config_word(dev, master_port, &master_data); - - if (pio > 1) - control |= 1; /* Programmable timing on */ - if (drive->media == ide_disk) - control |= 4; /* Prefetch, post write */ - if (ide_pio_need_iordy(drive, pio)) - control |= 2; /* IORDY */ - if (is_slave) { - master_data |= 0x4000; - master_data &= ~0x0070; - if (pio > 1) { - /* Set PPE, IE and TIME */ - master_data |= control << 4; - } - pci_read_config_byte(dev, slave_port, &slave_data); - slave_data &= hwif->channel ? 0x0f : 0xf0; - slave_data |= ((timings[pio][0] << 2) | timings[pio][1]) << - (hwif->channel ? 4 : 0); - } else { - master_data &= ~0x3307; - if (pio > 1) { - /* enable PPE, IE and TIME */ - master_data |= control; - } - master_data |= (timings[pio][0] << 12) | (timings[pio][1] << 8); - } - pci_write_config_word(dev, master_port, master_data); - if (is_slave) - pci_write_config_byte(dev, slave_port, slave_data); - spin_unlock_irqrestore(&slc90e66_lock, flags); -} - -static void slc90e66_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 maslave = hwif->channel ? 0x42 : 0x40; - int sitre = 0, a_speed = 7 << (drive->dn * 4); - int u_speed = 0, u_flag = 1 << drive->dn; - u16 reg4042, reg44, reg48, reg4a; - const u8 speed = drive->dma_mode; - - pci_read_config_word(dev, maslave, ®4042); - sitre = (reg4042 & 0x4000) ? 1 : 0; - pci_read_config_word(dev, 0x44, ®44); - pci_read_config_word(dev, 0x48, ®48); - pci_read_config_word(dev, 0x4a, ®4a); - - if (speed >= XFER_UDMA_0) { - u_speed = (speed - XFER_UDMA_0) << (drive->dn * 4); - - if (!(reg48 & u_flag)) - pci_write_config_word(dev, 0x48, reg48|u_flag); - if ((reg4a & a_speed) != u_speed) { - pci_write_config_word(dev, 0x4a, reg4a & ~a_speed); - pci_read_config_word(dev, 0x4a, ®4a); - pci_write_config_word(dev, 0x4a, reg4a|u_speed); - } - } else { - const u8 mwdma_to_pio[] = { 0, 3, 4 }; - - if (reg48 & u_flag) - pci_write_config_word(dev, 0x48, reg48 & ~u_flag); - if (reg4a & a_speed) - pci_write_config_word(dev, 0x4a, reg4a & ~a_speed); - - if (speed >= XFER_MW_DMA_0) - drive->pio_mode = - mwdma_to_pio[speed - XFER_MW_DMA_0] + XFER_PIO_0; - else - drive->pio_mode = XFER_PIO_2; /* for SWDMA2 */ - - slc90e66_set_pio_mode(hwif, drive); - } -} - -static u8 slc90e66_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u8 reg47 = 0, mask = hwif->channel ? 0x01 : 0x02; - - pci_read_config_byte(dev, 0x47, ®47); - - /* bit[0(1)]: 0:80, 1:40 */ - return (reg47 & mask) ? ATA_CBL_PATA40 : ATA_CBL_PATA80; -} - -static const struct ide_port_ops slc90e66_port_ops = { - .set_pio_mode = slc90e66_set_pio_mode, - .set_dma_mode = slc90e66_set_dma_mode, - .cable_detect = slc90e66_cable_detect, -}; - -static const struct ide_port_info slc90e66_chipset = { - .name = DRV_NAME, - .enablebits = { {0x41, 0x80, 0x80}, {0x43, 0x80, 0x80} }, - .port_ops = &slc90e66_port_ops, - .pio_mask = ATA_PIO4, - .swdma_mask = ATA_SWDMA2_ONLY, - .mwdma_mask = ATA_MWDMA12_ONLY, - .udma_mask = ATA_UDMA4, -}; - -static int slc90e66_init_one(struct pci_dev *dev, - const struct pci_device_id *id) -{ - return ide_pci_init_one(dev, &slc90e66_chipset, NULL); -} - -static const struct pci_device_id slc90e66_pci_tbl[] = { - { PCI_VDEVICE(EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, slc90e66_pci_tbl); - -static struct pci_driver slc90e66_pci_driver = { - .name = "SLC90e66_IDE", - .id_table = slc90e66_pci_tbl, - .probe = slc90e66_init_one, - .remove = ide_pci_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init slc90e66_ide_init(void) -{ - return ide_pci_register_driver(&slc90e66_pci_driver); -} - -static void __exit slc90e66_ide_exit(void) -{ - pci_unregister_driver(&slc90e66_pci_driver); -} - -module_init(slc90e66_ide_init); -module_exit(slc90e66_ide_exit); - -MODULE_AUTHOR("Andre Hedrick"); -MODULE_DESCRIPTION("PCI driver module for SLC90E66 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/tc86c001.c b/drivers/ide/tc86c001.c deleted file mode 100644 index 17e6132b99bf..000000000000 --- a/drivers/ide/tc86c001.c +++ /dev/null @@ -1,270 +0,0 @@ -/* - * Copyright (C) 2002 Toshiba Corporation - * Copyright (C) 2005-2006 MontaVista Software, Inc. <source@mvista.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#include <linux/types.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/module.h> - -#define DRV_NAME "tc86c001" - -static void tc86c001_set_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - unsigned long scr_port = hwif->config_data + (drive->dn ? 0x02 : 0x00); - u16 mode, scr = inw(scr_port); - const u8 speed = drive->dma_mode; - - switch (speed) { - case XFER_UDMA_4: mode = 0x00c0; break; - case XFER_UDMA_3: mode = 0x00b0; break; - case XFER_UDMA_2: mode = 0x00a0; break; - case XFER_UDMA_1: mode = 0x0090; break; - case XFER_UDMA_0: mode = 0x0080; break; - case XFER_MW_DMA_2: mode = 0x0070; break; - case XFER_MW_DMA_1: mode = 0x0060; break; - case XFER_MW_DMA_0: mode = 0x0050; break; - case XFER_PIO_4: mode = 0x0400; break; - case XFER_PIO_3: mode = 0x0300; break; - case XFER_PIO_2: mode = 0x0200; break; - case XFER_PIO_1: mode = 0x0100; break; - case XFER_PIO_0: - default: mode = 0x0000; break; - } - - scr &= (speed < XFER_MW_DMA_0) ? 0xf8ff : 0xff0f; - scr |= mode; - outw(scr, scr_port); -} - -static void tc86c001_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - drive->dma_mode = drive->pio_mode; - tc86c001_set_mode(hwif, drive); -} - -/* - * HACKITY HACK - * - * This is a workaround for the limitation 5 of the TC86C001 IDE controller: - * if a DMA transfer terminates prematurely, the controller leaves the device's - * interrupt request (INTRQ) pending and does not generate a PCI interrupt (or - * set the interrupt bit in the DMA status register), thus no PCI interrupt - * will occur until a DMA transfer has been successfully completed. - * - * We work around this by initiating dummy, zero-length DMA transfer on - * a DMA timeout expiration. I found no better way to do this with the current - * IDE core than to temporarily replace a higher level driver's timer expiry - * handler with our own backing up to that handler in case our recovery fails. - */ -static int tc86c001_timer_expiry(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - ide_expiry_t *expiry = ide_get_hwifdata(hwif); - u8 dma_stat = inb(hwif->dma_base + ATA_DMA_STATUS); - - /* Restore a higher level driver's expiry handler first. */ - hwif->expiry = expiry; - - if ((dma_stat & 5) == 1) { /* DMA active and no interrupt */ - unsigned long sc_base = hwif->config_data; - unsigned long twcr_port = sc_base + (drive->dn ? 0x06 : 0x04); - u8 dma_cmd = inb(hwif->dma_base + ATA_DMA_CMD); - - printk(KERN_WARNING "%s: DMA interrupt possibly stuck, " - "attempting recovery...\n", drive->name); - - /* Stop DMA */ - outb(dma_cmd & ~0x01, hwif->dma_base + ATA_DMA_CMD); - - /* Setup the dummy DMA transfer */ - outw(0, sc_base + 0x0a); /* Sector Count */ - outw(0, twcr_port); /* Transfer Word Count 1 or 2 */ - - /* Start the dummy DMA transfer */ - - /* clear R_OR_WCTR for write */ - outb(0x00, hwif->dma_base + ATA_DMA_CMD); - /* set START_STOPBM */ - outb(0x01, hwif->dma_base + ATA_DMA_CMD); - - /* - * If an interrupt was pending, it should come thru shortly. - * If not, a higher level driver's expiry handler should - * eventually cause some kind of recovery from the DMA stall. - */ - return WAIT_MIN_SLEEP; - } - - /* Chain to the restored expiry handler if DMA wasn't active. */ - if (likely(expiry != NULL)) - return expiry(drive); - - /* If there was no handler, "emulate" that for ide_timer_expiry()... */ - return -1; -} - -static void tc86c001_dma_start(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - unsigned long sc_base = hwif->config_data; - unsigned long twcr_port = sc_base + (drive->dn ? 0x06 : 0x04); - unsigned long nsectors = blk_rq_sectors(hwif->rq); - - /* - * We have to manually load the sector count and size into - * the appropriate system control registers for DMA to work - * with LBA48 and ATAPI devices... - */ - outw(nsectors, sc_base + 0x0a); /* Sector Count */ - outw(SECTOR_SIZE / 2, twcr_port); /* Transfer Word Count 1/2 */ - - /* Install our timeout expiry hook, saving the current handler... */ - ide_set_hwifdata(hwif, hwif->expiry); - hwif->expiry = &tc86c001_timer_expiry; - - ide_dma_start(drive); -} - -static u8 tc86c001_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long sc_base = pci_resource_start(dev, 5); - u16 scr1 = inw(sc_base + 0x00); - - /* - * System Control 1 Register bit 13 (PDIAGN): - * 0=80-pin cable, 1=40-pin cable - */ - return (scr1 & 0x2000) ? ATA_CBL_PATA40 : ATA_CBL_PATA80; -} - -static void init_hwif_tc86c001(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned long sc_base = pci_resource_start(dev, 5); - u16 scr1 = inw(sc_base + 0x00); - - /* System Control 1 Register bit 15 (Soft Reset) set */ - outw(scr1 | 0x8000, sc_base + 0x00); - - /* System Control 1 Register bit 14 (FIFO Reset) set */ - outw(scr1 | 0x4000, sc_base + 0x00); - - /* System Control 1 Register: reset clear */ - outw(scr1 & ~0xc000, sc_base + 0x00); - - /* Store the system control register base for convenience... */ - hwif->config_data = sc_base; - - if (!hwif->dma_base) - return; - - /* - * Sector Count Control Register bits 0 and 1 set: - * software sets Sector Count Register for master and slave device - */ - outw(0x0003, sc_base + 0x0c); - - /* Sector Count Register limit */ - hwif->rqsize = 0xffff; -} - -static const struct ide_port_ops tc86c001_port_ops = { - .set_pio_mode = tc86c001_set_pio_mode, - .set_dma_mode = tc86c001_set_mode, - .cable_detect = tc86c001_cable_detect, -}; - -static const struct ide_dma_ops tc86c001_dma_ops = { - .dma_host_set = ide_dma_host_set, - .dma_setup = ide_dma_setup, - .dma_start = tc86c001_dma_start, - .dma_end = ide_dma_end, - .dma_test_irq = ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = ide_dma_sff_read_status, -}; - -static const struct ide_port_info tc86c001_chipset = { - .name = DRV_NAME, - .init_hwif = init_hwif_tc86c001, - .port_ops = &tc86c001_port_ops, - .dma_ops = &tc86c001_dma_ops, - .host_flags = IDE_HFLAG_SINGLE | IDE_HFLAG_OFF_BOARD, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA4, -}; - -static int tc86c001_init_one(struct pci_dev *dev, - const struct pci_device_id *id) -{ - int rc; - - rc = pci_enable_device(dev); - if (rc) - goto out; - - rc = pci_request_region(dev, 5, DRV_NAME); - if (rc) { - printk(KERN_ERR DRV_NAME ": system control regs already in use"); - goto out_disable; - } - - rc = ide_pci_init_one(dev, &tc86c001_chipset, NULL); - if (rc) - goto out_release; - - goto out; - -out_release: - pci_release_region(dev, 5); -out_disable: - pci_disable_device(dev); -out: - return rc; -} - -static void tc86c001_remove(struct pci_dev *dev) -{ - ide_pci_remove(dev); - pci_release_region(dev, 5); - pci_disable_device(dev); -} - -static const struct pci_device_id tc86c001_pci_tbl[] = { - { PCI_VDEVICE(TOSHIBA_2, PCI_DEVICE_ID_TOSHIBA_TC86C001_IDE), 0 }, - { 0, } -}; -MODULE_DEVICE_TABLE(pci, tc86c001_pci_tbl); - -static struct pci_driver tc86c001_pci_driver = { - .name = "TC86C001", - .id_table = tc86c001_pci_tbl, - .probe = tc86c001_init_one, - .remove = tc86c001_remove, -}; - -static int __init tc86c001_ide_init(void) -{ - return ide_pci_register_driver(&tc86c001_pci_driver); -} - -static void __exit tc86c001_ide_exit(void) -{ - pci_unregister_driver(&tc86c001_pci_driver); -} - -module_init(tc86c001_ide_init); -module_exit(tc86c001_ide_exit); - -MODULE_AUTHOR("MontaVista Software, Inc. <source@mvista.com>"); -MODULE_DESCRIPTION("PCI driver module for TC86C001 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/triflex.c b/drivers/ide/triflex.c deleted file mode 100644 index 16ddd0956832..000000000000 --- a/drivers/ide/triflex.c +++ /dev/null @@ -1,143 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * IDE Chipset driver for the Compaq TriFlex IDE controller. - * - * Known to work with the Compaq Workstation 5x00 series. - * - * Copyright (C) 2002 Hewlett-Packard Development Group, L.P. - * Author: Torben Mathiasen <torben.mathiasen@hp.com> - * - * Loosely based on the piix & svwks drivers. - * - * Documentation: - * Not publicly available. - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/ide.h> -#include <linux/init.h> - -#define DRV_NAME "triflex" - -static void triflex_set_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - u32 triflex_timings = 0; - u16 timing = 0; - u8 channel_offset = hwif->channel ? 0x74 : 0x70, unit = drive->dn & 1; - - pci_read_config_dword(dev, channel_offset, &triflex_timings); - - switch (drive->dma_mode) { - case XFER_MW_DMA_2: - timing = 0x0103; - break; - case XFER_MW_DMA_1: - timing = 0x0203; - break; - case XFER_MW_DMA_0: - timing = 0x0808; - break; - case XFER_SW_DMA_2: - case XFER_SW_DMA_1: - case XFER_SW_DMA_0: - timing = 0x0f0f; - break; - case XFER_PIO_4: - timing = 0x0202; - break; - case XFER_PIO_3: - timing = 0x0204; - break; - case XFER_PIO_2: - timing = 0x0404; - break; - case XFER_PIO_1: - timing = 0x0508; - break; - case XFER_PIO_0: - timing = 0x0808; - break; - } - - triflex_timings &= ~(0xFFFF << (16 * unit)); - triflex_timings |= (timing << (16 * unit)); - - pci_write_config_dword(dev, channel_offset, triflex_timings); -} - -static void triflex_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - drive->dma_mode = drive->pio_mode; - triflex_set_mode(hwif, drive); -} - -static const struct ide_port_ops triflex_port_ops = { - .set_pio_mode = triflex_set_pio_mode, - .set_dma_mode = triflex_set_mode, -}; - -static const struct ide_port_info triflex_device = { - .name = DRV_NAME, - .enablebits = {{0x80, 0x01, 0x01}, {0x80, 0x02, 0x02}}, - .port_ops = &triflex_port_ops, - .pio_mask = ATA_PIO4, - .swdma_mask = ATA_SWDMA2, - .mwdma_mask = ATA_MWDMA2, -}; - -static int triflex_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - return ide_pci_init_one(dev, &triflex_device, NULL); -} - -static const struct pci_device_id triflex_pci_tbl[] = { - { PCI_VDEVICE(COMPAQ, PCI_DEVICE_ID_COMPAQ_TRIFLEX_IDE), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, triflex_pci_tbl); - -#ifdef CONFIG_PM -static int triflex_ide_pci_suspend(struct pci_dev *dev, pm_message_t state) -{ - /* - * We must not disable or powerdown the device. - * APM bios refuses to suspend if IDE is not accessible. - */ - pci_save_state(dev); - return 0; -} -#else -#define triflex_ide_pci_suspend NULL -#endif - -static struct pci_driver triflex_pci_driver = { - .name = "TRIFLEX_IDE", - .id_table = triflex_pci_tbl, - .probe = triflex_init_one, - .remove = ide_pci_remove, - .suspend = triflex_ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init triflex_ide_init(void) -{ - return ide_pci_register_driver(&triflex_pci_driver); -} - -static void __exit triflex_ide_exit(void) -{ - pci_unregister_driver(&triflex_pci_driver); -} - -module_init(triflex_ide_init); -module_exit(triflex_ide_exit); - -MODULE_AUTHOR("Torben Mathiasen"); -MODULE_DESCRIPTION("PCI driver module for Compaq Triflex IDE"); -MODULE_LICENSE("GPL"); - - diff --git a/drivers/ide/trm290.c b/drivers/ide/trm290.c deleted file mode 100644 index d550b379b0f1..000000000000 --- a/drivers/ide/trm290.c +++ /dev/null @@ -1,374 +0,0 @@ -/* - * Copyright (c) 1997-1998 Mark Lord - * Copyright (c) 2007 MontaVista Software, Inc. <source@mvista.com> - * - * May be copied or modified under the terms of the GNU General Public License - * - * June 22, 2004 - get rid of check_region - * - Jesper Juhl - * - */ - -/* - * This module provides support for the bus-master IDE DMA function - * of the Tekram TRM290 chip, used on a variety of PCI IDE add-on boards, - * including a "Precision Instruments" board. The TRM290 pre-dates - * the sff-8038 standard (ide-dma.c) by a few months, and differs - * significantly enough to warrant separate routines for some functions, - * while re-using others from ide-dma.c. - * - * EXPERIMENTAL! It works for me (a sample of one). - * - * Works reliably for me in DMA mode (READs only), - * DMA WRITEs are disabled by default (see #define below); - * - * DMA is not enabled automatically for this chipset, - * but can be turned on manually (with "hdparm -d1") at run time. - * - * I need volunteers with "spare" drives for further testing - * and development, and maybe to help figure out the peculiarities. - * Even knowing the registers (below), some things behave strangely. - */ - -#define TRM290_NO_DMA_WRITES /* DMA writes seem unreliable sometimes */ - -/* - * TRM-290 PCI-IDE2 Bus Master Chip - * ================================ - * The configuration registers are addressed in normal I/O port space - * and are used as follows: - * - * trm290_base depends on jumper settings, and is probed for by ide-dma.c - * - * trm290_base+2 when WRITTEN: chiptest register (byte, write-only) - * bit7 must always be written as "1" - * bits6-2 undefined - * bit1 1=legacy_compatible_mode, 0=native_pci_mode - * bit0 1=test_mode, 0=normal(default) - * - * trm290_base+2 when READ: status register (byte, read-only) - * bits7-2 undefined - * bit1 channel0 busmaster interrupt status 0=none, 1=asserted - * bit0 channel0 interrupt status 0=none, 1=asserted - * - * trm290_base+3 Interrupt mask register - * bits7-5 undefined - * bit4 legacy_header: 1=present, 0=absent - * bit3 channel1 busmaster interrupt status 0=none, 1=asserted (read only) - * bit2 channel1 interrupt status 0=none, 1=asserted (read only) - * bit1 channel1 interrupt mask: 1=masked, 0=unmasked(default) - * bit0 channel0 interrupt mask: 1=masked, 0=unmasked(default) - * - * trm290_base+1 "CPR" Config Pointer Register (byte) - * bit7 1=autoincrement CPR bits 2-0 after each access of CDR - * bit6 1=min. 1 wait-state posted write cycle (default), 0=0 wait-state - * bit5 0=enabled master burst access (default), 1=disable (write only) - * bit4 PCI DEVSEL# timing select: 1=medium(default), 0=fast - * bit3 0=primary IDE channel, 1=secondary IDE channel - * bits2-0 register index for accesses through CDR port - * - * trm290_base+0 "CDR" Config Data Register (word) - * two sets of seven config registers, - * selected by CPR bit 3 (channel) and CPR bits 2-0 (index 0 to 6), - * each index defined below: - * - * Index-0 Base address register for command block (word) - * defaults: 0x1f0 for primary, 0x170 for secondary - * - * Index-1 general config register (byte) - * bit7 1=DMA enable, 0=DMA disable - * bit6 1=activate IDE_RESET, 0=no action (default) - * bit5 1=enable IORDY, 0=disable IORDY (default) - * bit4 0=16-bit data port(default), 1=8-bit (XT) data port - * bit3 interrupt polarity: 1=active_low, 0=active_high(default) - * bit2 power-saving-mode(?): 1=enable, 0=disable(default) (write only) - * bit1 bus_master_mode(?): 1=enable, 0=disable(default) - * bit0 enable_io_ports: 1=enable(default), 0=disable - * - * Index-2 read-ahead counter preload bits 0-7 (byte, write only) - * bits7-0 bits7-0 of readahead count - * - * Index-3 read-ahead config register (byte, write only) - * bit7 1=enable_readahead, 0=disable_readahead(default) - * bit6 1=clear_FIFO, 0=no_action - * bit5 undefined - * bit4 mode4 timing control: 1=enable, 0=disable(default) - * bit3 undefined - * bit2 undefined - * bits1-0 bits9-8 of read-ahead count - * - * Index-4 base address register for control block (word) - * defaults: 0x3f6 for primary, 0x376 for secondary - * - * Index-5 data port timings (shared by both drives) (byte) - * standard PCI "clk" (clock) counts, default value = 0xf5 - * - * bits7-6 setup time: 00=1clk, 01=2clk, 10=3clk, 11=4clk - * bits5-3 hold time: 000=1clk, 001=2clk, 010=3clk, - * 011=4clk, 100=5clk, 101=6clk, - * 110=8clk, 111=12clk - * bits2-0 active time: 000=2clk, 001=3clk, 010=4clk, - * 011=5clk, 100=6clk, 101=8clk, - * 110=12clk, 111=16clk - * - * Index-6 command/control port timings (shared by both drives) (byte) - * same layout as Index-5, default value = 0xde - * - * Suggested CDR programming for PIO mode0 (600ns): - * 0x01f0,0x21,0xff,0x80,0x03f6,0xf5,0xde ; primary - * 0x0170,0x21,0xff,0x80,0x0376,0xf5,0xde ; secondary - * - * Suggested CDR programming for PIO mode3 (180ns): - * 0x01f0,0x21,0xff,0x80,0x03f6,0x09,0xde ; primary - * 0x0170,0x21,0xff,0x80,0x0376,0x09,0xde ; secondary - * - * Suggested CDR programming for PIO mode4 (120ns): - * 0x01f0,0x21,0xff,0x80,0x03f6,0x00,0xde ; primary - * 0x0170,0x21,0xff,0x80,0x0376,0x00,0xde ; secondary - * - */ - -#include <linux/types.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/ioport.h> -#include <linux/interrupt.h> -#include <linux/blkdev.h> -#include <linux/init.h> -#include <linux/pci.h> -#include <linux/ide.h> - -#include <asm/io.h> - -#define DRV_NAME "trm290" - -static void trm290_prepare_drive (ide_drive_t *drive, unsigned int use_dma) -{ - ide_hwif_t *hwif = drive->hwif; - u16 reg = 0; - unsigned long flags; - - /* select PIO or DMA */ - reg = use_dma ? (0x21 | 0x82) : (0x21 & ~0x82); - - local_irq_save(flags); - - if (reg != hwif->select_data) { - hwif->select_data = reg; - /* set PIO/DMA */ - outb(0x51 | (hwif->channel << 3), hwif->config_data + 1); - outw(reg & 0xff, hwif->config_data); - } - - /* enable IRQ if not probing */ - if (drive->dev_flags & IDE_DFLAG_PRESENT) { - reg = inw(hwif->config_data + 3); - reg &= 0x13; - reg &= ~(1 << hwif->channel); - outw(reg, hwif->config_data + 3); - } - - local_irq_restore(flags); -} - -static void trm290_dev_select(ide_drive_t *drive) -{ - trm290_prepare_drive(drive, !!(drive->dev_flags & IDE_DFLAG_USING_DMA)); - - outb(drive->select | ATA_DEVICE_OBS, drive->hwif->io_ports.device_addr); -} - -static int trm290_dma_check(ide_drive_t *drive, struct ide_cmd *cmd) -{ - if (cmd->tf_flags & IDE_TFLAG_WRITE) { -#ifdef TRM290_NO_DMA_WRITES - /* always use PIO for writes */ - return 1; -#endif - } - return 0; -} - -static int trm290_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - unsigned int count, rw = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 1 : 2; - - count = ide_build_dmatable(drive, cmd); - if (count == 0) - /* try PIO instead of DMA */ - return 1; - - outl(hwif->dmatable_dma | rw, hwif->dma_base); - /* start DMA */ - outw(count * 2 - 1, hwif->dma_base + 2); - - return 0; -} - -static void trm290_dma_start(ide_drive_t *drive) -{ - trm290_prepare_drive(drive, 1); -} - -static int trm290_dma_end(ide_drive_t *drive) -{ - u16 status = inw(drive->hwif->dma_base + 2); - - trm290_prepare_drive(drive, 0); - - return status != 0x00ff; -} - -static int trm290_dma_test_irq(ide_drive_t *drive) -{ - u16 status = inw(drive->hwif->dma_base + 2); - - return status == 0x00ff; -} - -static void trm290_dma_host_set(ide_drive_t *drive, int on) -{ -} - -static void init_hwif_trm290(ide_hwif_t *hwif) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - unsigned int cfg_base = pci_resource_start(dev, 4); - unsigned long flags; - u8 reg = 0; - - if ((dev->class & 5) && cfg_base) - printk(KERN_INFO DRV_NAME " %s: chip", pci_name(dev)); - else { - cfg_base = 0x3df0; - printk(KERN_INFO DRV_NAME " %s: using default", pci_name(dev)); - } - printk(KERN_CONT " config base at 0x%04x\n", cfg_base); - hwif->config_data = cfg_base; - hwif->dma_base = (cfg_base + 4) ^ (hwif->channel ? 0x80 : 0); - - printk(KERN_INFO " %s: BM-DMA at 0x%04lx-0x%04lx\n", - hwif->name, hwif->dma_base, hwif->dma_base + 3); - - if (ide_allocate_dma_engine(hwif)) - return; - - local_irq_save(flags); - /* put config reg into first byte of hwif->select_data */ - outb(0x51 | (hwif->channel << 3), hwif->config_data + 1); - /* select PIO as default */ - hwif->select_data = 0x21; - outb(hwif->select_data, hwif->config_data); - /* get IRQ info */ - reg = inb(hwif->config_data + 3); - /* mask IRQs for both ports */ - reg = (reg & 0x10) | 0x03; - outb(reg, hwif->config_data + 3); - local_irq_restore(flags); - - if (reg & 0x10) - /* legacy mode */ - hwif->irq = hwif->channel ? 15 : 14; - -#if 1 - { - /* - * My trm290-based card doesn't seem to work with all possible values - * for the control basereg, so this kludge ensures that we use only - * values that are known to work. Ugh. -ml - */ - u16 new, old, compat = hwif->channel ? 0x374 : 0x3f4; - static u16 next_offset = 0; - u8 old_mask; - - outb(0x54 | (hwif->channel << 3), hwif->config_data + 1); - old = inw(hwif->config_data); - old &= ~1; - old_mask = inb(old + 2); - if (old != compat && old_mask == 0xff) { - /* leave lower 10 bits untouched */ - compat += (next_offset += 0x400); - hwif->io_ports.ctl_addr = compat + 2; - outw(compat | 1, hwif->config_data); - new = inw(hwif->config_data); - printk(KERN_INFO "%s: control basereg workaround: " - "old=0x%04x, new=0x%04x\n", - hwif->name, old, new & ~1); - } - } -#endif -} - -static const struct ide_tp_ops trm290_tp_ops = { - .exec_command = ide_exec_command, - .read_status = ide_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = ide_write_devctl, - - .dev_select = trm290_dev_select, - .tf_load = ide_tf_load, - .tf_read = ide_tf_read, - - .input_data = ide_input_data, - .output_data = ide_output_data, -}; - -static const struct ide_dma_ops trm290_dma_ops = { - .dma_host_set = trm290_dma_host_set, - .dma_setup = trm290_dma_setup, - .dma_start = trm290_dma_start, - .dma_end = trm290_dma_end, - .dma_test_irq = trm290_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_check = trm290_dma_check, -}; - -static const struct ide_port_info trm290_chipset = { - .name = DRV_NAME, - .init_hwif = init_hwif_trm290, - .tp_ops = &trm290_tp_ops, - .dma_ops = &trm290_dma_ops, - .host_flags = IDE_HFLAG_TRM290 | - IDE_HFLAG_NO_ATAPI_DMA | -#if 0 /* play it safe for now */ - IDE_HFLAG_TRUST_BIOS_FOR_DMA | -#endif - IDE_HFLAG_NO_AUTODMA | - IDE_HFLAG_NO_LBA48, -}; - -static int trm290_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - return ide_pci_init_one(dev, &trm290_chipset, NULL); -} - -static const struct pci_device_id trm290_pci_tbl[] = { - { PCI_VDEVICE(TEKRAM, PCI_DEVICE_ID_TEKRAM_DC290), 0 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, trm290_pci_tbl); - -static struct pci_driver trm290_pci_driver = { - .name = "TRM290_IDE", - .id_table = trm290_pci_tbl, - .probe = trm290_init_one, - .remove = ide_pci_remove, -}; - -static int __init trm290_ide_init(void) -{ - return ide_pci_register_driver(&trm290_pci_driver); -} - -static void __exit trm290_ide_exit(void) -{ - pci_unregister_driver(&trm290_pci_driver); -} - -module_init(trm290_ide_init); -module_exit(trm290_ide_exit); - -MODULE_AUTHOR("Mark Lord"); -MODULE_DESCRIPTION("PCI driver module for Tekram TRM290 IDE"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/tx4938ide.c b/drivers/ide/tx4938ide.c deleted file mode 100644 index 962eb92501b5..000000000000 --- a/drivers/ide/tx4938ide.c +++ /dev/null @@ -1,209 +0,0 @@ -/* - * TX4938 internal IDE driver - * Based on tx4939ide.c. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * (C) Copyright TOSHIBA CORPORATION 2005-2007 - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/ide.h> -#include <linux/init.h> -#include <linux/platform_device.h> -#include <linux/io.h> - -#include <asm/ide.h> -#include <asm/txx9/tx4938.h> - -static void tx4938ide_tune_ebusc(unsigned int ebus_ch, - unsigned int gbus_clock, - u8 pio) -{ - struct ide_timing *t = ide_timing_find_mode(XFER_PIO_0 + pio); - u64 cr = __raw_readq(&tx4938_ebuscptr->cr[ebus_ch]); - unsigned int sp = (cr >> 4) & 3; - unsigned int clock = gbus_clock / (4 - sp); - unsigned int cycle = 1000000000 / clock; - unsigned int shwt; - int wt; - - /* Minimum DIOx- active time */ - wt = DIV_ROUND_UP(t->act8b, cycle) - 2; - /* IORDY setup time: 35ns */ - wt = max_t(int, wt, DIV_ROUND_UP(35, cycle)); - /* actual wait-cycle is max(wt & ~1, 1) */ - if (wt > 2 && (wt & 1)) - wt++; - wt &= ~1; - /* Address-valid to DIOR/DIOW setup */ - shwt = DIV_ROUND_UP(t->setup, cycle); - - /* -DIOx recovery time (SHWT * 4) and cycle time requirement */ - while ((shwt * 4 + wt + (wt ? 2 : 3)) * cycle < t->cycle) - shwt++; - if (shwt > 7) { - pr_warn("tx4938ide: SHWT violation (%d)\n", shwt); - shwt = 7; - } - pr_debug("tx4938ide: ebus %d, bus cycle %dns, WT %d, SHWT %d\n", - ebus_ch, cycle, wt, shwt); - - __raw_writeq((cr & ~0x3f007ull) | (wt << 12) | shwt, - &tx4938_ebuscptr->cr[ebus_ch]); -} - -static void tx4938ide_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - struct tx4938ide_platform_info *pdata = dev_get_platdata(hwif->dev); - u8 safe = drive->pio_mode - XFER_PIO_0; - ide_drive_t *pair; - - pair = ide_get_pair_dev(drive); - if (pair) - safe = min_t(u8, safe, pair->pio_mode - XFER_PIO_0); - tx4938ide_tune_ebusc(pdata->ebus_ch, pdata->gbus_clock, safe); -} - -#ifdef __BIG_ENDIAN - -/* custom iops (independent from SWAP_IO_SPACE) */ -static void tx4938ide_input_data_swap(ide_drive_t *drive, struct ide_cmd *cmd, - void *buf, unsigned int len) -{ - unsigned long port = drive->hwif->io_ports.data_addr; - unsigned short *ptr = buf; - unsigned int count = (len + 1) / 2; - - while (count--) - *ptr++ = cpu_to_le16(__raw_readw((void __iomem *)port)); - __ide_flush_dcache_range((unsigned long)buf, roundup(len, 2)); -} - -static void tx4938ide_output_data_swap(ide_drive_t *drive, struct ide_cmd *cmd, - void *buf, unsigned int len) -{ - unsigned long port = drive->hwif->io_ports.data_addr; - unsigned short *ptr = buf; - unsigned int count = (len + 1) / 2; - - while (count--) { - __raw_writew(le16_to_cpu(*ptr), (void __iomem *)port); - ptr++; - } - __ide_flush_dcache_range((unsigned long)buf, roundup(len, 2)); -} - -static const struct ide_tp_ops tx4938ide_tp_ops = { - .exec_command = ide_exec_command, - .read_status = ide_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = ide_write_devctl, - - .dev_select = ide_dev_select, - .tf_load = ide_tf_load, - .tf_read = ide_tf_read, - - .input_data = tx4938ide_input_data_swap, - .output_data = tx4938ide_output_data_swap, -}; - -#endif /* __BIG_ENDIAN */ - -static const struct ide_port_ops tx4938ide_port_ops = { - .set_pio_mode = tx4938ide_set_pio_mode, -}; - -static const struct ide_port_info tx4938ide_port_info __initconst = { - .port_ops = &tx4938ide_port_ops, -#ifdef __BIG_ENDIAN - .tp_ops = &tx4938ide_tp_ops, -#endif - .host_flags = IDE_HFLAG_MMIO | IDE_HFLAG_NO_DMA, - .pio_mask = ATA_PIO5, - .chipset = ide_generic, -}; - -static int __init tx4938ide_probe(struct platform_device *pdev) -{ - struct ide_hw hw, *hws[] = { &hw }; - struct ide_host *host; - struct resource *res; - struct tx4938ide_platform_info *pdata = dev_get_platdata(&pdev->dev); - int irq, ret, i; - unsigned long mapbase, mapctl; - struct ide_port_info d = tx4938ide_port_info; - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return -ENODEV; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; - - if (!devm_request_mem_region(&pdev->dev, res->start, - resource_size(res), "tx4938ide")) - return -EBUSY; - mapbase = (unsigned long)devm_ioremap(&pdev->dev, res->start, - 8 << pdata->ioport_shift); - mapctl = (unsigned long)devm_ioremap(&pdev->dev, - res->start + 0x10000 + - (6 << pdata->ioport_shift), - 1 << pdata->ioport_shift); - if (!mapbase || !mapctl) - return -EBUSY; - - memset(&hw, 0, sizeof(hw)); - if (pdata->ioport_shift) { - unsigned long port = mapbase; - unsigned long ctl = mapctl; - - hw.io_ports_array[0] = port; -#ifdef __BIG_ENDIAN - port++; - ctl++; -#endif - for (i = 1; i <= 7; i++) - hw.io_ports_array[i] = - port + (i << pdata->ioport_shift); - hw.io_ports.ctl_addr = ctl; - } else - ide_std_init_ports(&hw, mapbase, mapctl); - hw.irq = irq; - hw.dev = &pdev->dev; - - pr_info("TX4938 IDE interface (base %#lx, ctl %#lx, irq %d)\n", - mapbase, mapctl, hw.irq); - if (pdata->gbus_clock) - tx4938ide_tune_ebusc(pdata->ebus_ch, pdata->gbus_clock, 0); - else - d.port_ops = NULL; - ret = ide_host_add(&d, hws, 1, &host); - if (!ret) - platform_set_drvdata(pdev, host); - return ret; -} - -static int __exit tx4938ide_remove(struct platform_device *pdev) -{ - struct ide_host *host = platform_get_drvdata(pdev); - - ide_host_remove(host); - return 0; -} - -static struct platform_driver tx4938ide_driver = { - .driver = { - .name = "tx4938ide", - }, - .remove = __exit_p(tx4938ide_remove), -}; - -module_platform_driver_probe(tx4938ide_driver, tx4938ide_probe); - -MODULE_DESCRIPTION("TX4938 internal IDE driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:tx4938ide"); diff --git a/drivers/ide/tx4939ide.c b/drivers/ide/tx4939ide.c deleted file mode 100644 index b1bbf807bb3d..000000000000 --- a/drivers/ide/tx4939ide.c +++ /dev/null @@ -1,628 +0,0 @@ -/* - * TX4939 internal IDE driver - * Based on RBTX49xx patch from CELF patch archive. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * (C) Copyright TOSHIBA CORPORATION 2005-2007 - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/ide.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/platform_device.h> -#include <linux/io.h> -#include <linux/scatterlist.h> - -#include <asm/ide.h> - -#define MODNAME "tx4939ide" - -/* ATA Shadow Registers (8-bit except for Data which is 16-bit) */ -#define TX4939IDE_Data 0x000 -#define TX4939IDE_Error_Feature 0x001 -#define TX4939IDE_Sec 0x002 -#define TX4939IDE_LBA0 0x003 -#define TX4939IDE_LBA1 0x004 -#define TX4939IDE_LBA2 0x005 -#define TX4939IDE_DevHead 0x006 -#define TX4939IDE_Stat_Cmd 0x007 -#define TX4939IDE_AltStat_DevCtl 0x402 -/* H/W DMA Registers */ -#define TX4939IDE_DMA_Cmd 0x800 /* 8-bit */ -#define TX4939IDE_DMA_Stat 0x802 /* 8-bit */ -#define TX4939IDE_PRD_Ptr 0x804 /* 32-bit */ -/* ATA100 CORE Registers (16-bit) */ -#define TX4939IDE_Sys_Ctl 0xc00 -#define TX4939IDE_Xfer_Cnt_1 0xc08 -#define TX4939IDE_Xfer_Cnt_2 0xc0a -#define TX4939IDE_Sec_Cnt 0xc10 -#define TX4939IDE_Start_Lo_Addr 0xc18 -#define TX4939IDE_Start_Up_Addr 0xc20 -#define TX4939IDE_Add_Ctl 0xc28 -#define TX4939IDE_Lo_Burst_Cnt 0xc30 -#define TX4939IDE_Up_Burst_Cnt 0xc38 -#define TX4939IDE_PIO_Addr 0xc88 -#define TX4939IDE_H_Rst_Tim 0xc90 -#define TX4939IDE_Int_Ctl 0xc98 -#define TX4939IDE_Pkt_Cmd 0xcb8 -#define TX4939IDE_Bxfer_Cnt_Hi 0xcc0 -#define TX4939IDE_Bxfer_Cnt_Lo 0xcc8 -#define TX4939IDE_Dev_TErr 0xcd0 -#define TX4939IDE_Pkt_Xfer_Ctl 0xcd8 -#define TX4939IDE_Start_TAddr 0xce0 - -/* bits for Int_Ctl */ -#define TX4939IDE_INT_ADDRERR 0x80 -#define TX4939IDE_INT_REACHMUL 0x40 -#define TX4939IDE_INT_DEVTIMING 0x20 -#define TX4939IDE_INT_UDMATERM 0x10 -#define TX4939IDE_INT_TIMER 0x08 -#define TX4939IDE_INT_BUSERR 0x04 -#define TX4939IDE_INT_XFEREND 0x02 -#define TX4939IDE_INT_HOST 0x01 - -#define TX4939IDE_IGNORE_INTS \ - (TX4939IDE_INT_ADDRERR | TX4939IDE_INT_REACHMUL | \ - TX4939IDE_INT_DEVTIMING | TX4939IDE_INT_UDMATERM | \ - TX4939IDE_INT_TIMER | TX4939IDE_INT_XFEREND) - -#ifdef __BIG_ENDIAN -#define tx4939ide_swizzlel(a) ((a) ^ 4) -#define tx4939ide_swizzlew(a) ((a) ^ 6) -#define tx4939ide_swizzleb(a) ((a) ^ 7) -#else -#define tx4939ide_swizzlel(a) (a) -#define tx4939ide_swizzlew(a) (a) -#define tx4939ide_swizzleb(a) (a) -#endif - -static u16 tx4939ide_readw(void __iomem *base, u32 reg) -{ - return __raw_readw(base + tx4939ide_swizzlew(reg)); -} -static u8 tx4939ide_readb(void __iomem *base, u32 reg) -{ - return __raw_readb(base + tx4939ide_swizzleb(reg)); -} -static void tx4939ide_writel(u32 val, void __iomem *base, u32 reg) -{ - __raw_writel(val, base + tx4939ide_swizzlel(reg)); -} -static void tx4939ide_writew(u16 val, void __iomem *base, u32 reg) -{ - __raw_writew(val, base + tx4939ide_swizzlew(reg)); -} -static void tx4939ide_writeb(u8 val, void __iomem *base, u32 reg) -{ - __raw_writeb(val, base + tx4939ide_swizzleb(reg)); -} - -#define TX4939IDE_BASE(hwif) ((void __iomem *)(hwif)->extra_base) - -static void tx4939ide_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - int is_slave = drive->dn; - u32 mask, val; - const u8 pio = drive->pio_mode - XFER_PIO_0; - u8 safe = pio; - ide_drive_t *pair; - - pair = ide_get_pair_dev(drive); - if (pair) - safe = min_t(u8, safe, pair->pio_mode - XFER_PIO_0); - /* - * Update Command Transfer Mode for master/slave and Data - * Transfer Mode for this drive. - */ - mask = is_slave ? 0x07f00000 : 0x000007f0; - val = ((safe << 8) | (pio << 4)) << (is_slave ? 16 : 0); - hwif->select_data = (hwif->select_data & ~mask) | val; - /* tx4939ide_tf_load_fixup() will set the Sys_Ctl register */ -} - -static void tx4939ide_set_dma_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - u32 mask, val; - const u8 mode = drive->dma_mode; - - /* Update Data Transfer Mode for this drive. */ - if (mode >= XFER_UDMA_0) - val = mode - XFER_UDMA_0 + 8; - else - val = mode - XFER_MW_DMA_0 + 5; - if (drive->dn) { - mask = 0x00f00000; - val <<= 20; - } else { - mask = 0x000000f0; - val <<= 4; - } - hwif->select_data = (hwif->select_data & ~mask) | val; - /* tx4939ide_tf_load_fixup() will set the Sys_Ctl register */ -} - -static u16 tx4939ide_check_error_ints(ide_hwif_t *hwif) -{ - void __iomem *base = TX4939IDE_BASE(hwif); - u16 ctl = tx4939ide_readw(base, TX4939IDE_Int_Ctl); - - if (ctl & TX4939IDE_INT_BUSERR) { - /* reset FIFO */ - u16 sysctl = tx4939ide_readw(base, TX4939IDE_Sys_Ctl); - - tx4939ide_writew(sysctl | 0x4000, base, TX4939IDE_Sys_Ctl); - /* wait 12GBUSCLK (typ. 60ns @ GBUS200MHz, max 270ns) */ - ndelay(270); - tx4939ide_writew(sysctl, base, TX4939IDE_Sys_Ctl); - } - if (ctl & (TX4939IDE_INT_ADDRERR | - TX4939IDE_INT_DEVTIMING | TX4939IDE_INT_BUSERR)) - pr_err("%s: Error interrupt %#x (%s%s%s )\n", - hwif->name, ctl, - ctl & TX4939IDE_INT_ADDRERR ? " Address-Error" : "", - ctl & TX4939IDE_INT_DEVTIMING ? " DEV-Timing" : "", - ctl & TX4939IDE_INT_BUSERR ? " Bus-Error" : ""); - return ctl; -} - -static void tx4939ide_clear_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif; - void __iomem *base; - u16 ctl; - - /* - * tx4939ide_dma_test_irq() and tx4939ide_dma_end() do all job - * for DMA case. - */ - if (drive->waiting_for_dma) - return; - hwif = drive->hwif; - base = TX4939IDE_BASE(hwif); - ctl = tx4939ide_check_error_ints(hwif); - tx4939ide_writew(ctl, base, TX4939IDE_Int_Ctl); -} - -static u8 tx4939ide_cable_detect(ide_hwif_t *hwif) -{ - void __iomem *base = TX4939IDE_BASE(hwif); - - return tx4939ide_readw(base, TX4939IDE_Sys_Ctl) & 0x2000 ? - ATA_CBL_PATA40 : ATA_CBL_PATA80; -} - -#ifdef __BIG_ENDIAN -static void tx4939ide_dma_host_set(ide_drive_t *drive, int on) -{ - ide_hwif_t *hwif = drive->hwif; - u8 unit = drive->dn; - void __iomem *base = TX4939IDE_BASE(hwif); - u8 dma_stat = tx4939ide_readb(base, TX4939IDE_DMA_Stat); - - if (on) - dma_stat |= (1 << (5 + unit)); - else - dma_stat &= ~(1 << (5 + unit)); - - tx4939ide_writeb(dma_stat, base, TX4939IDE_DMA_Stat); -} -#else -#define tx4939ide_dma_host_set ide_dma_host_set -#endif - -static u8 tx4939ide_clear_dma_status(void __iomem *base) -{ - u8 dma_stat; - - /* read DMA status for INTR & ERROR flags */ - dma_stat = tx4939ide_readb(base, TX4939IDE_DMA_Stat); - /* clear INTR & ERROR flags */ - tx4939ide_writeb(dma_stat | ATA_DMA_INTR | ATA_DMA_ERR, base, - TX4939IDE_DMA_Stat); - /* recover intmask cleared by writing to bit2 of DMA_Stat */ - tx4939ide_writew(TX4939IDE_IGNORE_INTS << 8, base, TX4939IDE_Int_Ctl); - return dma_stat; -} - -#ifdef __BIG_ENDIAN -/* custom ide_build_dmatable to handle swapped layout */ -static int tx4939ide_build_dmatable(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - u32 *table = (u32 *)hwif->dmatable_cpu; - unsigned int count = 0; - int i; - struct scatterlist *sg; - - for_each_sg(hwif->sg_table, sg, cmd->sg_nents, i) { - u32 cur_addr, cur_len, bcount; - - cur_addr = sg_dma_address(sg); - cur_len = sg_dma_len(sg); - - /* - * Fill in the DMA table, without crossing any 64kB boundaries. - */ - - while (cur_len) { - if (count++ >= PRD_ENTRIES) - goto use_pio_instead; - - bcount = 0x10000 - (cur_addr & 0xffff); - if (bcount > cur_len) - bcount = cur_len; - /* - * This workaround for zero count seems required. - * (standard ide_build_dmatable does it too) - */ - if (bcount == 0x10000) - bcount = 0x8000; - *table++ = bcount & 0xffff; - *table++ = cur_addr; - cur_addr += bcount; - cur_len -= bcount; - } - } - - if (count) { - *(table - 2) |= 0x80000000; - return count; - } - -use_pio_instead: - printk(KERN_ERR "%s: %s\n", drive->name, - count ? "DMA table too small" : "empty DMA table?"); - - return 0; /* revert to PIO for this request */ -} -#else -#define tx4939ide_build_dmatable ide_build_dmatable -#endif - -static int tx4939ide_dma_setup(ide_drive_t *drive, struct ide_cmd *cmd) -{ - ide_hwif_t *hwif = drive->hwif; - void __iomem *base = TX4939IDE_BASE(hwif); - u8 rw = (cmd->tf_flags & IDE_TFLAG_WRITE) ? 0 : ATA_DMA_WR; - - /* fall back to PIO! */ - if (tx4939ide_build_dmatable(drive, cmd) == 0) - return 1; - - /* PRD table */ - tx4939ide_writel(hwif->dmatable_dma, base, TX4939IDE_PRD_Ptr); - - /* specify r/w */ - tx4939ide_writeb(rw, base, TX4939IDE_DMA_Cmd); - - /* clear INTR & ERROR flags */ - tx4939ide_clear_dma_status(base); - - tx4939ide_writew(SECTOR_SIZE / 2, base, drive->dn ? - TX4939IDE_Xfer_Cnt_2 : TX4939IDE_Xfer_Cnt_1); - - tx4939ide_writew(blk_rq_sectors(cmd->rq), base, TX4939IDE_Sec_Cnt); - - return 0; -} - -static int tx4939ide_dma_end(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - u8 dma_stat, dma_cmd; - void __iomem *base = TX4939IDE_BASE(hwif); - u16 ctl = tx4939ide_readw(base, TX4939IDE_Int_Ctl); - - /* get DMA command mode */ - dma_cmd = tx4939ide_readb(base, TX4939IDE_DMA_Cmd); - /* stop DMA */ - tx4939ide_writeb(dma_cmd & ~ATA_DMA_START, base, TX4939IDE_DMA_Cmd); - - /* read and clear the INTR & ERROR bits */ - dma_stat = tx4939ide_clear_dma_status(base); - -#define CHECK_DMA_MASK (ATA_DMA_ACTIVE | ATA_DMA_ERR | ATA_DMA_INTR) - - /* verify good DMA status */ - if ((dma_stat & CHECK_DMA_MASK) == 0 && - (ctl & (TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST)) == - (TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST)) - /* INT_IDE lost... bug? */ - return 0; - return ((dma_stat & CHECK_DMA_MASK) != - ATA_DMA_INTR) ? 0x10 | dma_stat : 0; -} - -/* returns 1 if DMA IRQ issued, 0 otherwise */ -static int tx4939ide_dma_test_irq(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - void __iomem *base = TX4939IDE_BASE(hwif); - u16 ctl, ide_int; - u8 dma_stat, stat; - int found = 0; - - ctl = tx4939ide_check_error_ints(hwif); - ide_int = ctl & (TX4939IDE_INT_XFEREND | TX4939IDE_INT_HOST); - switch (ide_int) { - case TX4939IDE_INT_HOST: - /* On error, XFEREND might not be asserted. */ - stat = tx4939ide_readb(base, TX4939IDE_AltStat_DevCtl); - if ((stat & (ATA_BUSY | ATA_DRQ | ATA_ERR)) == ATA_ERR) - found = 1; - else - /* Wait for XFEREND (Mask HOST and unmask XFEREND) */ - ctl &= ~TX4939IDE_INT_XFEREND << 8; - ctl |= ide_int << 8; - break; - case TX4939IDE_INT_HOST | TX4939IDE_INT_XFEREND: - dma_stat = tx4939ide_readb(base, TX4939IDE_DMA_Stat); - if (!(dma_stat & ATA_DMA_INTR)) - pr_warn("%s: weird interrupt status. " - "DMA_Stat %#02x int_ctl %#04x\n", - hwif->name, dma_stat, ctl); - found = 1; - break; - } - /* - * Do not clear XFEREND, HOST now. They will be cleared by - * clearing bit2 of DMA_Stat. - */ - ctl &= ~ide_int; - tx4939ide_writew(ctl, base, TX4939IDE_Int_Ctl); - return found; -} - -#ifdef __BIG_ENDIAN -static u8 tx4939ide_dma_sff_read_status(ide_hwif_t *hwif) -{ - void __iomem *base = TX4939IDE_BASE(hwif); - - return tx4939ide_readb(base, TX4939IDE_DMA_Stat); -} -#else -#define tx4939ide_dma_sff_read_status ide_dma_sff_read_status -#endif - -static void tx4939ide_init_hwif(ide_hwif_t *hwif) -{ - void __iomem *base = TX4939IDE_BASE(hwif); - - /* Soft Reset */ - tx4939ide_writew(0x8000, base, TX4939IDE_Sys_Ctl); - /* at least 20 GBUSCLK (typ. 100ns @ GBUS200MHz, max 450ns) */ - ndelay(450); - tx4939ide_writew(0x0000, base, TX4939IDE_Sys_Ctl); - /* mask some interrupts and clear all interrupts */ - tx4939ide_writew((TX4939IDE_IGNORE_INTS << 8) | 0xff, base, - TX4939IDE_Int_Ctl); - - tx4939ide_writew(0x0008, base, TX4939IDE_Lo_Burst_Cnt); - tx4939ide_writew(0, base, TX4939IDE_Up_Burst_Cnt); -} - -static int tx4939ide_init_dma(ide_hwif_t *hwif, const struct ide_port_info *d) -{ - hwif->dma_base = - hwif->extra_base + tx4939ide_swizzleb(TX4939IDE_DMA_Cmd); - /* - * Note that we cannot use ATA_DMA_TABLE_OFS, ATA_DMA_STATUS - * for big endian. - */ - return ide_allocate_dma_engine(hwif); -} - -static void tx4939ide_tf_load_fixup(ide_drive_t *drive) -{ - ide_hwif_t *hwif = drive->hwif; - void __iomem *base = TX4939IDE_BASE(hwif); - u16 sysctl = hwif->select_data >> (drive->dn ? 16 : 0); - - /* - * Fix ATA100 CORE System Control Register. (The write to the - * Device/Head register may write wrong data to the System - * Control Register) - * While Sys_Ctl is written here, dev_select() is not needed. - */ - tx4939ide_writew(sysctl, base, TX4939IDE_Sys_Ctl); -} - -static void tx4939ide_tf_load(ide_drive_t *drive, struct ide_taskfile *tf, - u8 valid) -{ - ide_tf_load(drive, tf, valid); - - if (valid & IDE_VALID_DEVICE) - tx4939ide_tf_load_fixup(drive); -} - -#ifdef __BIG_ENDIAN - -/* custom iops (independent from SWAP_IO_SPACE) */ -static void tx4939ide_input_data_swap(ide_drive_t *drive, struct ide_cmd *cmd, - void *buf, unsigned int len) -{ - unsigned long port = drive->hwif->io_ports.data_addr; - unsigned short *ptr = buf; - unsigned int count = (len + 1) / 2; - - while (count--) - *ptr++ = cpu_to_le16(__raw_readw((void __iomem *)port)); - __ide_flush_dcache_range((unsigned long)buf, roundup(len, 2)); -} - -static void tx4939ide_output_data_swap(ide_drive_t *drive, struct ide_cmd *cmd, - void *buf, unsigned int len) -{ - unsigned long port = drive->hwif->io_ports.data_addr; - unsigned short *ptr = buf; - unsigned int count = (len + 1) / 2; - - while (count--) { - __raw_writew(le16_to_cpu(*ptr), (void __iomem *)port); - ptr++; - } - __ide_flush_dcache_range((unsigned long)buf, roundup(len, 2)); -} - -static const struct ide_tp_ops tx4939ide_tp_ops = { - .exec_command = ide_exec_command, - .read_status = ide_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = ide_write_devctl, - - .dev_select = ide_dev_select, - .tf_load = tx4939ide_tf_load, - .tf_read = ide_tf_read, - - .input_data = tx4939ide_input_data_swap, - .output_data = tx4939ide_output_data_swap, -}; - -#else /* __LITTLE_ENDIAN */ - -static const struct ide_tp_ops tx4939ide_tp_ops = { - .exec_command = ide_exec_command, - .read_status = ide_read_status, - .read_altstatus = ide_read_altstatus, - .write_devctl = ide_write_devctl, - - .dev_select = ide_dev_select, - .tf_load = tx4939ide_tf_load, - .tf_read = ide_tf_read, - - .input_data = ide_input_data, - .output_data = ide_output_data, -}; - -#endif /* __LITTLE_ENDIAN */ - -static const struct ide_port_ops tx4939ide_port_ops = { - .set_pio_mode = tx4939ide_set_pio_mode, - .set_dma_mode = tx4939ide_set_dma_mode, - .clear_irq = tx4939ide_clear_irq, - .cable_detect = tx4939ide_cable_detect, -}; - -static const struct ide_dma_ops tx4939ide_dma_ops = { - .dma_host_set = tx4939ide_dma_host_set, - .dma_setup = tx4939ide_dma_setup, - .dma_start = ide_dma_start, - .dma_end = tx4939ide_dma_end, - .dma_test_irq = tx4939ide_dma_test_irq, - .dma_lost_irq = ide_dma_lost_irq, - .dma_timer_expiry = ide_dma_sff_timer_expiry, - .dma_sff_read_status = tx4939ide_dma_sff_read_status, -}; - -static const struct ide_port_info tx4939ide_port_info __initconst = { - .init_hwif = tx4939ide_init_hwif, - .init_dma = tx4939ide_init_dma, - .port_ops = &tx4939ide_port_ops, - .dma_ops = &tx4939ide_dma_ops, - .tp_ops = &tx4939ide_tp_ops, - .host_flags = IDE_HFLAG_MMIO, - .pio_mask = ATA_PIO4, - .mwdma_mask = ATA_MWDMA2, - .udma_mask = ATA_UDMA5, - .chipset = ide_generic, -}; - -static int __init tx4939ide_probe(struct platform_device *pdev) -{ - struct ide_hw hw, *hws[] = { &hw }; - struct ide_host *host; - struct resource *res; - int irq, ret; - unsigned long mapbase; - - irq = platform_get_irq(pdev, 0); - if (irq < 0) - return -ENODEV; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; - - if (!devm_request_mem_region(&pdev->dev, res->start, - resource_size(res), MODNAME)) - return -EBUSY; - mapbase = (unsigned long)devm_ioremap(&pdev->dev, res->start, - resource_size(res)); - if (!mapbase) - return -EBUSY; - memset(&hw, 0, sizeof(hw)); - hw.io_ports.data_addr = - mapbase + tx4939ide_swizzlew(TX4939IDE_Data); - hw.io_ports.error_addr = - mapbase + tx4939ide_swizzleb(TX4939IDE_Error_Feature); - hw.io_ports.nsect_addr = - mapbase + tx4939ide_swizzleb(TX4939IDE_Sec); - hw.io_ports.lbal_addr = - mapbase + tx4939ide_swizzleb(TX4939IDE_LBA0); - hw.io_ports.lbam_addr = - mapbase + tx4939ide_swizzleb(TX4939IDE_LBA1); - hw.io_ports.lbah_addr = - mapbase + tx4939ide_swizzleb(TX4939IDE_LBA2); - hw.io_ports.device_addr = - mapbase + tx4939ide_swizzleb(TX4939IDE_DevHead); - hw.io_ports.command_addr = - mapbase + tx4939ide_swizzleb(TX4939IDE_Stat_Cmd); - hw.io_ports.ctl_addr = - mapbase + tx4939ide_swizzleb(TX4939IDE_AltStat_DevCtl); - hw.irq = irq; - hw.dev = &pdev->dev; - - pr_info("TX4939 IDE interface (base %#lx, irq %d)\n", mapbase, irq); - host = ide_host_alloc(&tx4939ide_port_info, hws, 1); - if (!host) - return -ENOMEM; - /* use extra_base for base address of the all registers */ - host->ports[0]->extra_base = mapbase; - ret = ide_host_register(host, &tx4939ide_port_info, hws); - if (ret) { - ide_host_free(host); - return ret; - } - platform_set_drvdata(pdev, host); - return 0; -} - -static int __exit tx4939ide_remove(struct platform_device *pdev) -{ - struct ide_host *host = platform_get_drvdata(pdev); - - ide_host_remove(host); - return 0; -} - -#ifdef CONFIG_PM -static int tx4939ide_resume(struct platform_device *dev) -{ - struct ide_host *host = platform_get_drvdata(dev); - ide_hwif_t *hwif = host->ports[0]; - - tx4939ide_init_hwif(hwif); - return 0; -} -#else -#define tx4939ide_resume NULL -#endif - -static struct platform_driver tx4939ide_driver = { - .driver = { - .name = MODNAME, - }, - .remove = __exit_p(tx4939ide_remove), - .resume = tx4939ide_resume, -}; - -module_platform_driver_probe(tx4939ide_driver, tx4939ide_probe); - -MODULE_DESCRIPTION("TX4939 internal IDE driver"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("platform:tx4939ide"); diff --git a/drivers/ide/umc8672.c b/drivers/ide/umc8672.c deleted file mode 100644 index cf996f788292..000000000000 --- a/drivers/ide/umc8672.c +++ /dev/null @@ -1,184 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * Copyright (C) 1995-1996 Linus Torvalds & author (see below) - */ - -/* - * Principal Author/Maintainer: PODIEN@hml2.atlas.de (Wolfram Podien) - * - * This file provides support for the advanced features - * of the UMC 8672 IDE interface. - * - * Version 0.01 Initial version, hacked out of ide.c, - * and #include'd rather than compiled separately. - * This will get cleaned up in a subsequent release. - * - * Version 0.02 now configs/compiles separate from ide.c -ml - * Version 0.03 enhanced auto-tune, fix display bug - * Version 0.05 replace sti() with restore_flags() -ml - * add detection of possible race condition -ml - */ - -/* - * VLB Controller Support from - * Wolfram Podien - * Rohoefe 3 - * D28832 Achim - * Germany - * - * To enable UMC8672 support there must a lilo line like - * append="ide0=umc8672"... - * To set the speed according to the abilities of the hardware there must be a - * line like - * #define UMC_DRIVE0 11 - * in the beginning of the driver, which sets the speed of drive 0 to 11 (there - * are some lines present). 0 - 11 are allowed speed values. These values are - * the results from the DOS speed test program supplied from UMC. 11 is the - * highest speed (about PIO mode 3) - */ -#define REALLY_SLOW_IO /* some systems can safely undef this */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/ioport.h> -#include <linux/blkdev.h> -#include <linux/ide.h> -#include <linux/init.h> - -#include <asm/io.h> - -#define DRV_NAME "umc8672" - -/* - * Default speeds. These can be changed with "auto-tune" and/or hdparm. - */ -#define UMC_DRIVE0 1 /* DOS measured drive speeds */ -#define UMC_DRIVE1 1 /* 0 to 11 allowed */ -#define UMC_DRIVE2 1 /* 11 = Fastest Speed */ -#define UMC_DRIVE3 1 /* In case of crash reduce speed */ - -static u8 current_speeds[4] = {UMC_DRIVE0, UMC_DRIVE1, UMC_DRIVE2, UMC_DRIVE3}; -static const u8 pio_to_umc [5] = {0, 3, 7, 10, 11}; /* rough guesses */ - -/* 0 1 2 3 4 5 6 7 8 9 10 11 */ -static const u8 speedtab [3][12] = { - {0x0f, 0x0b, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x1}, - {0x03, 0x02, 0x02, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x01, 0x01, 0x1}, - {0xff, 0xcb, 0xc0, 0x58, 0x36, 0x33, 0x23, 0x22, 0x21, 0x11, 0x10, 0x0} -}; - -static void out_umc(char port, char wert) -{ - outb_p(port, 0x108); - outb_p(wert, 0x109); -} - -static inline u8 in_umc(char port) -{ - outb_p(port, 0x108); - return inb_p(0x109); -} - -static void umc_set_speeds(u8 speeds[]) -{ - int i, tmp; - - outb_p(0x5A, 0x108); /* enable umc */ - - out_umc(0xd7, (speedtab[0][speeds[2]] | (speedtab[0][speeds[3]]<<4))); - out_umc(0xd6, (speedtab[0][speeds[0]] | (speedtab[0][speeds[1]]<<4))); - tmp = 0; - for (i = 3; i >= 0; i--) - tmp = (tmp << 2) | speedtab[1][speeds[i]]; - out_umc(0xdc, tmp); - for (i = 0; i < 4; i++) { - out_umc(0xd0 + i, speedtab[2][speeds[i]]); - out_umc(0xd8 + i, speedtab[2][speeds[i]]); - } - outb_p(0xa5, 0x108); /* disable umc */ - - printk("umc8672: drive speeds [0 to 11]: %d %d %d %d\n", - speeds[0], speeds[1], speeds[2], speeds[3]); -} - -static void umc_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - ide_hwif_t *mate = hwif->mate; - unsigned long flags; - const u8 pio = drive->pio_mode - XFER_PIO_0; - - printk("%s: setting umc8672 to PIO mode%d (speed %d)\n", - drive->name, pio, pio_to_umc[pio]); - if (mate) - spin_lock_irqsave(&mate->lock, flags); - if (mate && mate->handler) { - printk(KERN_ERR "umc8672: other interface is busy: exiting tune_umc()\n"); - } else { - current_speeds[drive->name[2] - 'a'] = pio_to_umc[pio]; - umc_set_speeds(current_speeds); - } - if (mate) - spin_unlock_irqrestore(&mate->lock, flags); -} - -static const struct ide_port_ops umc8672_port_ops = { - .set_pio_mode = umc_set_pio_mode, -}; - -static const struct ide_port_info umc8672_port_info __initconst = { - .name = DRV_NAME, - .chipset = ide_umc8672, - .port_ops = &umc8672_port_ops, - .host_flags = IDE_HFLAG_NO_DMA, - .pio_mask = ATA_PIO4, -}; - -static int __init umc8672_probe(void) -{ - unsigned long flags; - - if (!request_region(0x108, 2, "umc8672")) { - printk(KERN_ERR "umc8672: ports 0x108-0x109 already in use.\n"); - return 1; - } - local_irq_save(flags); - outb_p(0x5A, 0x108); /* enable umc */ - if (in_umc (0xd5) != 0xa0) { - local_irq_restore(flags); - printk(KERN_ERR "umc8672: not found\n"); - release_region(0x108, 2); - return 1; - } - outb_p(0xa5, 0x108); /* disable umc */ - - umc_set_speeds(current_speeds); - local_irq_restore(flags); - - return ide_legacy_device_add(&umc8672_port_info, 0); -} - -static bool probe_umc8672; - -module_param_named(probe, probe_umc8672, bool, 0); -MODULE_PARM_DESC(probe, "probe for UMC8672 chipset"); - -static int __init umc8672_init(void) -{ - if (probe_umc8672 == 0) - goto out; - - if (umc8672_probe() == 0) - return 0; -out: - return -ENODEV; -} - -module_init(umc8672_init); - -MODULE_AUTHOR("Wolfram Podien"); -MODULE_DESCRIPTION("Support for UMC 8672 IDE chipset"); -MODULE_LICENSE("GPL"); diff --git a/drivers/ide/via82cxxx.c b/drivers/ide/via82cxxx.c deleted file mode 100644 index 63a3aca506fc..000000000000 --- a/drivers/ide/via82cxxx.c +++ /dev/null @@ -1,532 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * VIA IDE driver for Linux. Supported southbridges: - * - * vt82c576, vt82c586, vt82c586a, vt82c586b, vt82c596a, vt82c596b, - * vt82c686, vt82c686a, vt82c686b, vt8231, vt8233, vt8233c, vt8233a, - * vt8235, vt8237, vt8237a - * - * Copyright (c) 2000-2002 Vojtech Pavlik - * Copyright (c) 2007-2010 Bartlomiej Zolnierkiewicz - * - * Based on the work of: - * Michel Aubry - * Jeff Garzik - * Andre Hedrick - * - * Documentation: - * Obsolete device documentation publicly available from via.com.tw - * Current device documentation available under NDA only - */ - - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/ide.h> -#include <linux/dmi.h> - -#ifdef CONFIG_PPC_CHRP -#include <asm/processor.h> -#endif - -#define DRV_NAME "via82cxxx" - -#define VIA_IDE_ENABLE 0x40 -#define VIA_IDE_CONFIG 0x41 -#define VIA_FIFO_CONFIG 0x43 -#define VIA_MISC_1 0x44 -#define VIA_MISC_2 0x45 -#define VIA_MISC_3 0x46 -#define VIA_DRIVE_TIMING 0x48 -#define VIA_8BIT_TIMING 0x4e -#define VIA_ADDRESS_SETUP 0x4c -#define VIA_UDMA_TIMING 0x50 - -#define VIA_BAD_PREQ 0x01 /* Crashes if PREQ# till DDACK# set */ -#define VIA_BAD_CLK66 0x02 /* 66 MHz clock doesn't work correctly */ -#define VIA_SET_FIFO 0x04 /* Needs to have FIFO split set */ -#define VIA_NO_UNMASK 0x08 /* Doesn't work with IRQ unmasking on */ -#define VIA_BAD_ID 0x10 /* Has wrong vendor ID (0x1107) */ -#define VIA_BAD_AST 0x20 /* Don't touch Address Setup Timing */ -#define VIA_SATA_PATA 0x80 /* SATA/PATA combined configuration */ - -enum { - VIA_IDFLAG_SINGLE = (1 << 1), /* single channel controller */ -}; - -/* - * VIA SouthBridge chips. - */ - -static struct via_isa_bridge { - char *name; - u16 id; - u8 rev_min; - u8 rev_max; - u8 udma_mask; - u8 flags; -} via_isa_bridges[] = { - { "vx855", PCI_DEVICE_ID_VIA_VX855, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_SATA_PATA }, - { "vx800", PCI_DEVICE_ID_VIA_VX800, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_SATA_PATA }, - { "cx700", PCI_DEVICE_ID_VIA_CX700, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST | VIA_SATA_PATA }, - { "vt8261", PCI_DEVICE_ID_VIA_8261, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, - { "vt8237s", PCI_DEVICE_ID_VIA_8237S, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, - { "vt6410", PCI_DEVICE_ID_VIA_6410, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, - { "vt6415", PCI_DEVICE_ID_VIA_6415, 0x00, 0xff, ATA_UDMA6, VIA_BAD_AST }, - { "vt8251", PCI_DEVICE_ID_VIA_8251, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, - { "vt8237", PCI_DEVICE_ID_VIA_8237, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, - { "vt8237a", PCI_DEVICE_ID_VIA_8237A, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, - { "vt8235", PCI_DEVICE_ID_VIA_8235, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, - { "vt8233a", PCI_DEVICE_ID_VIA_8233A, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, - { "vt8233c", PCI_DEVICE_ID_VIA_8233C_0, 0x00, 0x2f, ATA_UDMA5, }, - { "vt8233", PCI_DEVICE_ID_VIA_8233_0, 0x00, 0x2f, ATA_UDMA5, }, - { "vt8231", PCI_DEVICE_ID_VIA_8231, 0x00, 0x2f, ATA_UDMA5, }, - { "vt82c686b", PCI_DEVICE_ID_VIA_82C686, 0x40, 0x4f, ATA_UDMA5, }, - { "vt82c686a", PCI_DEVICE_ID_VIA_82C686, 0x10, 0x2f, ATA_UDMA4, }, - { "vt82c686", PCI_DEVICE_ID_VIA_82C686, 0x00, 0x0f, ATA_UDMA2, VIA_BAD_CLK66 }, - { "vt82c596b", PCI_DEVICE_ID_VIA_82C596, 0x10, 0x2f, ATA_UDMA4, }, - { "vt82c596a", PCI_DEVICE_ID_VIA_82C596, 0x00, 0x0f, ATA_UDMA2, VIA_BAD_CLK66 }, - { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x47, 0x4f, ATA_UDMA2, VIA_SET_FIFO }, - { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x40, 0x46, ATA_UDMA2, VIA_SET_FIFO | VIA_BAD_PREQ }, - { "vt82c586b", PCI_DEVICE_ID_VIA_82C586_0, 0x30, 0x3f, ATA_UDMA2, VIA_SET_FIFO }, - { "vt82c586a", PCI_DEVICE_ID_VIA_82C586_0, 0x20, 0x2f, ATA_UDMA2, VIA_SET_FIFO }, - { "vt82c586", PCI_DEVICE_ID_VIA_82C586_0, 0x00, 0x0f, 0x00, VIA_SET_FIFO }, - { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, 0x00, VIA_SET_FIFO | VIA_NO_UNMASK }, - { "vt82c576", PCI_DEVICE_ID_VIA_82C576, 0x00, 0x2f, 0x00, VIA_SET_FIFO | VIA_NO_UNMASK | VIA_BAD_ID }, - { "vtxxxx", PCI_DEVICE_ID_VIA_ANON, 0x00, 0x2f, ATA_UDMA6, VIA_BAD_AST }, - { NULL } -}; - -static unsigned int via_clock; -static char *via_dma[] = { "16", "25", "33", "44", "66", "100", "133" }; - -struct via82cxxx_dev -{ - struct via_isa_bridge *via_config; - unsigned int via_80w; -}; - -/** - * via_set_speed - write timing registers - * @dev: PCI device - * @dn: device - * @timing: IDE timing data to use - * - * via_set_speed writes timing values to the chipset registers - */ - -static void via_set_speed(ide_hwif_t *hwif, u8 dn, struct ide_timing *timing) -{ - struct pci_dev *dev = to_pci_dev(hwif->dev); - struct ide_host *host = pci_get_drvdata(dev); - struct via82cxxx_dev *vdev = host->host_priv; - u8 t; - - if (~vdev->via_config->flags & VIA_BAD_AST) { - pci_read_config_byte(dev, VIA_ADDRESS_SETUP, &t); - t = (t & ~(3 << ((3 - dn) << 1))) | ((clamp_val(timing->setup, 1, 4) - 1) << ((3 - dn) << 1)); - pci_write_config_byte(dev, VIA_ADDRESS_SETUP, t); - } - - pci_write_config_byte(dev, VIA_8BIT_TIMING + (1 - (dn >> 1)), - ((clamp_val(timing->act8b, 1, 16) - 1) << 4) | (clamp_val(timing->rec8b, 1, 16) - 1)); - - pci_write_config_byte(dev, VIA_DRIVE_TIMING + (3 - dn), - ((clamp_val(timing->active, 1, 16) - 1) << 4) | (clamp_val(timing->recover, 1, 16) - 1)); - - switch (vdev->via_config->udma_mask) { - case ATA_UDMA2: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 5) - 2)) : 0x03; break; - case ATA_UDMA4: t = timing->udma ? (0xe8 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x0f; break; - case ATA_UDMA5: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x07; break; - case ATA_UDMA6: t = timing->udma ? (0xe0 | (clamp_val(timing->udma, 2, 9) - 2)) : 0x07; break; - } - - /* Set UDMA unless device is not UDMA capable */ - if (vdev->via_config->udma_mask) { - u8 udma_etc; - - pci_read_config_byte(dev, VIA_UDMA_TIMING + 3 - dn, &udma_etc); - - /* clear transfer mode bit */ - udma_etc &= ~0x20; - - if (timing->udma) { - /* preserve 80-wire cable detection bit */ - udma_etc &= 0x10; - udma_etc |= t; - } - - pci_write_config_byte(dev, VIA_UDMA_TIMING + 3 - dn, udma_etc); - } -} - -/** - * via_set_drive - configure transfer mode - * @hwif: port - * @drive: Drive to set up - * - * via_set_drive() computes timing values configures the chipset to - * a desired transfer mode. It also can be called by upper layers. - */ - -static void via_set_drive(ide_hwif_t *hwif, ide_drive_t *drive) -{ - ide_drive_t *peer = ide_get_pair_dev(drive); - struct ide_host *host = dev_get_drvdata(hwif->dev); - struct via82cxxx_dev *vdev = host->host_priv; - struct ide_timing t, p; - unsigned int T, UT; - const u8 speed = drive->dma_mode; - - T = 1000000000 / via_clock; - - switch (vdev->via_config->udma_mask) { - case ATA_UDMA2: UT = T; break; - case ATA_UDMA4: UT = T/2; break; - case ATA_UDMA5: UT = T/3; break; - case ATA_UDMA6: UT = T/4; break; - default: UT = T; - } - - ide_timing_compute(drive, speed, &t, T, UT); - - if (peer) { - ide_timing_compute(peer, peer->pio_mode, &p, T, UT); - ide_timing_merge(&p, &t, &t, IDE_TIMING_8BIT); - } - - via_set_speed(hwif, drive->dn, &t); -} - -/** - * via_set_pio_mode - set host controller for PIO mode - * @hwif: port - * @drive: drive - * - * A callback from the upper layers for PIO-only tuning. - */ - -static void via_set_pio_mode(ide_hwif_t *hwif, ide_drive_t *drive) -{ - drive->dma_mode = drive->pio_mode; - via_set_drive(hwif, drive); -} - -static struct via_isa_bridge *via_config_find(struct pci_dev **isa) -{ - struct via_isa_bridge *via_config; - - for (via_config = via_isa_bridges; - via_config->id != PCI_DEVICE_ID_VIA_ANON; via_config++) - if ((*isa = pci_get_device(PCI_VENDOR_ID_VIA + - !!(via_config->flags & VIA_BAD_ID), - via_config->id, NULL))) { - - if ((*isa)->revision >= via_config->rev_min && - (*isa)->revision <= via_config->rev_max) - break; - pci_dev_put(*isa); - } - - return via_config; -} - -/* - * Check and handle 80-wire cable presence - */ -static void via_cable_detect(struct via82cxxx_dev *vdev, u32 u) -{ - int i; - - switch (vdev->via_config->udma_mask) { - case ATA_UDMA4: - for (i = 24; i >= 0; i -= 8) - if (((u >> (i & 16)) & 8) && - ((u >> i) & 0x20) && - (((u >> i) & 7) < 2)) { - /* - * 2x PCI clock and - * UDMA w/ < 3T/cycle - */ - vdev->via_80w |= (1 << (1 - (i >> 4))); - } - break; - - case ATA_UDMA5: - for (i = 24; i >= 0; i -= 8) - if (((u >> i) & 0x10) || - (((u >> i) & 0x20) && - (((u >> i) & 7) < 4))) { - /* BIOS 80-wire bit or - * UDMA w/ < 60ns/cycle - */ - vdev->via_80w |= (1 << (1 - (i >> 4))); - } - break; - - case ATA_UDMA6: - for (i = 24; i >= 0; i -= 8) - if (((u >> i) & 0x10) || - (((u >> i) & 0x20) && - (((u >> i) & 7) < 6))) { - /* BIOS 80-wire bit or - * UDMA w/ < 60ns/cycle - */ - vdev->via_80w |= (1 << (1 - (i >> 4))); - } - break; - } -} - -/** - * init_chipset_via82cxxx - initialization handler - * @dev: PCI device - * - * The initialization callback. Here we determine the IDE chip type - * and initialize its drive independent registers. - */ - -static int init_chipset_via82cxxx(struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - struct via82cxxx_dev *vdev = host->host_priv; - struct via_isa_bridge *via_config = vdev->via_config; - u8 t, v; - u32 u; - - /* - * Detect cable and configure Clk66 - */ - pci_read_config_dword(dev, VIA_UDMA_TIMING, &u); - - via_cable_detect(vdev, u); - - if (via_config->udma_mask == ATA_UDMA4) { - /* Enable Clk66 */ - pci_write_config_dword(dev, VIA_UDMA_TIMING, u|0x80008); - } else if (via_config->flags & VIA_BAD_CLK66) { - /* Would cause trouble on 596a and 686 */ - pci_write_config_dword(dev, VIA_UDMA_TIMING, u & ~0x80008); - } - - /* - * Check whether interfaces are enabled. - */ - - pci_read_config_byte(dev, VIA_IDE_ENABLE, &v); - - /* - * Set up FIFO sizes and thresholds. - */ - - pci_read_config_byte(dev, VIA_FIFO_CONFIG, &t); - - /* Disable PREQ# till DDACK# */ - if (via_config->flags & VIA_BAD_PREQ) { - /* Would crash on 586b rev 41 */ - t &= 0x7f; - } - - /* Fix FIFO split between channels */ - if (via_config->flags & VIA_SET_FIFO) { - t &= (t & 0x9f); - switch (v & 3) { - case 2: t |= 0x00; break; /* 16 on primary */ - case 1: t |= 0x60; break; /* 16 on secondary */ - case 3: t |= 0x20; break; /* 8 pri 8 sec */ - } - } - - pci_write_config_byte(dev, VIA_FIFO_CONFIG, t); - - return 0; -} - -/* - * Cable special cases - */ - -static const struct dmi_system_id cable_dmi_table[] = { - { - .ident = "Acer Ferrari 3400", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Acer,Inc."), - DMI_MATCH(DMI_BOARD_NAME, "Ferrari 3400"), - }, - }, - { } -}; - -static int via_cable_override(struct pci_dev *pdev) -{ - /* Systems by DMI */ - if (dmi_check_system(cable_dmi_table)) - return 1; - - /* Arima W730-K8/Targa Visionary 811/... */ - if (pdev->subsystem_vendor == 0x161F && - pdev->subsystem_device == 0x2032) - return 1; - - return 0; -} - -static u8 via82cxxx_cable_detect(ide_hwif_t *hwif) -{ - struct pci_dev *pdev = to_pci_dev(hwif->dev); - struct ide_host *host = pci_get_drvdata(pdev); - struct via82cxxx_dev *vdev = host->host_priv; - - if (via_cable_override(pdev)) - return ATA_CBL_PATA40_SHORT; - - if ((vdev->via_config->flags & VIA_SATA_PATA) && hwif->channel == 0) - return ATA_CBL_SATA; - - if ((vdev->via_80w >> hwif->channel) & 1) - return ATA_CBL_PATA80; - else - return ATA_CBL_PATA40; -} - -static const struct ide_port_ops via_port_ops = { - .set_pio_mode = via_set_pio_mode, - .set_dma_mode = via_set_drive, - .cable_detect = via82cxxx_cable_detect, -}; - -static const struct ide_port_info via82cxxx_chipset = { - .name = DRV_NAME, - .init_chipset = init_chipset_via82cxxx, - .enablebits = { { 0x40, 0x02, 0x02 }, { 0x40, 0x01, 0x01 } }, - .port_ops = &via_port_ops, - .host_flags = IDE_HFLAG_PIO_NO_BLACKLIST | - IDE_HFLAG_POST_SET_MODE | - IDE_HFLAG_IO_32BIT, - .pio_mask = ATA_PIO5, - .swdma_mask = ATA_SWDMA2, - .mwdma_mask = ATA_MWDMA2, -}; - -static int via_init_one(struct pci_dev *dev, const struct pci_device_id *id) -{ - struct pci_dev *isa = NULL; - struct via_isa_bridge *via_config; - struct via82cxxx_dev *vdev; - int rc; - u8 idx = id->driver_data; - struct ide_port_info d; - - d = via82cxxx_chipset; - - /* - * Find the ISA bridge and check we know what it is. - */ - via_config = via_config_find(&isa); - - /* - * Print the boot message. - */ - printk(KERN_INFO DRV_NAME " %s: VIA %s (rev %02x) IDE %sDMA%s\n", - pci_name(dev), via_config->name, isa->revision, - via_config->udma_mask ? "U" : "MW", - via_dma[via_config->udma_mask ? - (fls(via_config->udma_mask) - 1) : 0]); - - pci_dev_put(isa); - - /* - * Determine system bus clock. - */ - via_clock = (ide_pci_clk ? ide_pci_clk : 33) * 1000; - - switch (via_clock) { - case 33000: via_clock = 33333; break; - case 37000: via_clock = 37500; break; - case 41000: via_clock = 41666; break; - } - - if (via_clock < 20000 || via_clock > 50000) { - printk(KERN_WARNING DRV_NAME ": User given PCI clock speed " - "impossible (%d), using 33 MHz instead.\n", via_clock); - via_clock = 33333; - } - - if (idx == 1) - d.enablebits[1].reg = d.enablebits[0].reg = 0; - else - d.host_flags |= IDE_HFLAG_NO_AUTODMA; - - if (idx == VIA_IDFLAG_SINGLE) - d.host_flags |= IDE_HFLAG_SINGLE; - - if ((via_config->flags & VIA_NO_UNMASK) == 0) - d.host_flags |= IDE_HFLAG_UNMASK_IRQS; - - d.udma_mask = via_config->udma_mask; - - vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); - if (!vdev) { - printk(KERN_ERR DRV_NAME " %s: out of memory :(\n", - pci_name(dev)); - return -ENOMEM; - } - - vdev->via_config = via_config; - - rc = ide_pci_init_one(dev, &d, vdev); - if (rc) - kfree(vdev); - - return rc; -} - -static void via_remove(struct pci_dev *dev) -{ - struct ide_host *host = pci_get_drvdata(dev); - struct via82cxxx_dev *vdev = host->host_priv; - - ide_pci_remove(dev); - kfree(vdev); -} - -static const struct pci_device_id via_pci_tbl[] = { - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C576_1), 0 }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_82C586_1), 0 }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_CX700_IDE), 0 }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_VX855_IDE), VIA_IDFLAG_SINGLE }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_6410), 1 }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_6415), 1 }, - { PCI_VDEVICE(VIA, PCI_DEVICE_ID_VIA_SATA_EIDE), 1 }, - { 0, }, -}; -MODULE_DEVICE_TABLE(pci, via_pci_tbl); - -static struct pci_driver via_pci_driver = { - .name = "VIA_IDE", - .id_table = via_pci_tbl, - .probe = via_init_one, - .remove = via_remove, - .suspend = ide_pci_suspend, - .resume = ide_pci_resume, -}; - -static int __init via_ide_init(void) -{ - return ide_pci_register_driver(&via_pci_driver); -} - -static void __exit via_ide_exit(void) -{ - pci_unregister_driver(&via_pci_driver); -} - -module_init(via_ide_init); -module_exit(via_ide_exit); - -MODULE_AUTHOR("Vojtech Pavlik, Bartlomiej Zolnierkiewicz, Michel Aubry, Jeff Garzik, Andre Hedrick"); -MODULE_DESCRIPTION("PCI driver module for VIA IDE"); -MODULE_LICENSE("GPL"); diff --git a/include/linux/ide.h b/include/linux/ide.h deleted file mode 100644 index 2c300689a51a..000000000000 --- a/include/linux/ide.h +++ /dev/null @@ -1,1623 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _IDE_H -#define _IDE_H -/* - * linux/include/linux/ide.h - * - * Copyright (C) 1994-2002 Linus Torvalds & authors - */ - -#include <linux/init.h> -#include <linux/ioport.h> -#include <linux/ata.h> -#include <linux/blk-mq.h> -#include <linux/proc_fs.h> -#include <linux/interrupt.h> -#include <linux/bitops.h> -#include <linux/bio.h> -#include <linux/pci.h> -#include <linux/completion.h> -#include <linux/pm.h> -#include <linux/mutex.h> -/* for request_sense */ -#include <linux/cdrom.h> -#include <scsi/scsi_cmnd.h> -#include <asm/byteorder.h> -#include <asm/io.h> - -/* - * Probably not wise to fiddle with these - */ -#define SUPPORT_VLB_SYNC 1 -#define IDE_DEFAULT_MAX_FAILURES 1 -#define ERROR_MAX 8 /* Max read/write errors per sector */ -#define ERROR_RESET 3 /* Reset controller every 4th retry */ -#define ERROR_RECAL 1 /* Recalibrate every 2nd retry */ - -struct device; - -/* values for ide_request.type */ -enum ata_priv_type { - ATA_PRIV_MISC, - ATA_PRIV_TASKFILE, - ATA_PRIV_PC, - ATA_PRIV_SENSE, /* sense request */ - ATA_PRIV_PM_SUSPEND, /* suspend request */ - ATA_PRIV_PM_RESUME, /* resume request */ -}; - -struct ide_request { - struct scsi_request sreq; - u8 sense[SCSI_SENSE_BUFFERSIZE]; - u8 type; - void *special; -}; - -static inline struct ide_request *ide_req(struct request *rq) -{ - return blk_mq_rq_to_pdu(rq); -} - -static inline bool ata_misc_request(struct request *rq) -{ - return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_MISC; -} - -static inline bool ata_taskfile_request(struct request *rq) -{ - return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_TASKFILE; -} - -static inline bool ata_pc_request(struct request *rq) -{ - return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_PC; -} - -static inline bool ata_sense_request(struct request *rq) -{ - return blk_rq_is_private(rq) && ide_req(rq)->type == ATA_PRIV_SENSE; -} - -static inline bool ata_pm_request(struct request *rq) -{ - return blk_rq_is_private(rq) && - (ide_req(rq)->type == ATA_PRIV_PM_SUSPEND || - ide_req(rq)->type == ATA_PRIV_PM_RESUME); -} - -/* Error codes returned in result to the higher part of the driver. */ -enum { - IDE_DRV_ERROR_GENERAL = 101, - IDE_DRV_ERROR_FILEMARK = 102, - IDE_DRV_ERROR_EOD = 103, -}; - -/* - * Definitions for accessing IDE controller registers - */ -#define IDE_NR_PORTS (10) - -struct ide_io_ports { - unsigned long data_addr; - - union { - unsigned long error_addr; /* read: error */ - unsigned long feature_addr; /* write: feature */ - }; - - unsigned long nsect_addr; - unsigned long lbal_addr; - unsigned long lbam_addr; - unsigned long lbah_addr; - - unsigned long device_addr; - - union { - unsigned long status_addr; /*  read: status  */ - unsigned long command_addr; /* write: command */ - }; - - unsigned long ctl_addr; - - unsigned long irq_addr; -}; - -#define OK_STAT(stat,good,bad) (((stat)&((good)|(bad)))==(good)) - -#define BAD_R_STAT (ATA_BUSY | ATA_ERR) -#define BAD_W_STAT (BAD_R_STAT | ATA_DF) -#define BAD_STAT (BAD_R_STAT | ATA_DRQ) -#define DRIVE_READY (ATA_DRDY | ATA_DSC) - -#define BAD_CRC (ATA_ABORTED | ATA_ICRC) - -#define SATA_NR_PORTS (3) /* 16 possible ?? */ - -#define SATA_STATUS_OFFSET (0) -#define SATA_ERROR_OFFSET (1) -#define SATA_CONTROL_OFFSET (2) - -/* - * Our Physical Region Descriptor (PRD) table should be large enough - * to handle the biggest I/O request we are likely to see. Since requests - * can have no more than 256 sectors, and since the typical blocksize is - * two or more sectors, we could get by with a limit of 128 entries here for - * the usual worst case. Most requests seem to include some contiguous blocks, - * further reducing the number of table entries required. - * - * The driver reverts to PIO mode for individual requests that exceed - * this limit (possible with 512 byte blocksizes, eg. MSDOS f/s), so handling - * 100% of all crazy scenarios here is not necessary. - * - * As it turns out though, we must allocate a full 4KB page for this, - * so the two PRD tables (ide0 & ide1) will each get half of that, - * allowing each to have about 256 entries (8 bytes each) from this. - */ -#define PRD_BYTES 8 -#define PRD_ENTRIES 256 - -/* - * Some more useful definitions - */ -#define PARTN_BITS 6 /* number of minor dev bits for partitions */ -#define MAX_DRIVES 2 /* per interface; 2 assumed by lots of code */ - -/* - * Timeouts for various operations: - */ -enum { - /* spec allows up to 20ms, but CF cards and SSD drives need more */ - WAIT_DRQ = 1 * HZ, /* 1s */ - /* some laptops are very slow */ - WAIT_READY = 5 * HZ, /* 5s */ - /* should be less than 3ms (?), if all ATAPI CD is closed at boot */ - WAIT_PIDENTIFY = 10 * HZ, /* 10s */ - /* worst case when spinning up */ - WAIT_WORSTCASE = 30 * HZ, /* 30s */ - /* maximum wait for an IRQ to happen */ - WAIT_CMD = 10 * HZ, /* 10s */ - /* Some drives require a longer IRQ timeout. */ - WAIT_FLOPPY_CMD = 50 * HZ, /* 50s */ - /* - * Some drives (for example, Seagate STT3401A Travan) require a very - * long timeout, because they don't return an interrupt or clear their - * BSY bit until after the command completes (even retension commands). - */ - WAIT_TAPE_CMD = 900 * HZ, /* 900s */ - /* minimum sleep time */ - WAIT_MIN_SLEEP = HZ / 50, /* 20ms */ -}; - -/* - * Op codes for special requests to be handled by ide_special_rq(). - * Values should be in the range of 0x20 to 0x3f. - */ -#define REQ_DRIVE_RESET 0x20 -#define REQ_DEVSET_EXEC 0x21 -#define REQ_PARK_HEADS 0x22 -#define REQ_UNPARK_HEADS 0x23 - -/* - * hwif_chipset_t is used to keep track of the specific hardware - * chipset used by each IDE interface, if known. - */ -enum { ide_unknown, ide_generic, ide_pci, - ide_cmd640, ide_dtc2278, ide_ali14xx, - ide_qd65xx, ide_umc8672, ide_ht6560b, - ide_4drives, ide_pmac, ide_acorn, - ide_au1xxx, ide_palm3710 -}; - -typedef u8 hwif_chipset_t; - -/* - * Structure to hold all information about the location of this port - */ -struct ide_hw { - union { - struct ide_io_ports io_ports; - unsigned long io_ports_array[IDE_NR_PORTS]; - }; - - int irq; /* our irq number */ - struct device *dev, *parent; - unsigned long config; -}; - -static inline void ide_std_init_ports(struct ide_hw *hw, - unsigned long io_addr, - unsigned long ctl_addr) -{ - unsigned int i; - - for (i = 0; i <= 7; i++) - hw->io_ports_array[i] = io_addr++; - - hw->io_ports.ctl_addr = ctl_addr; -} - -#define MAX_HWIFS 10 - -/* - * Now for the data we need to maintain per-drive: ide_drive_t - */ - -#define ide_scsi 0x21 -#define ide_disk 0x20 -#define ide_optical 0x7 -#define ide_cdrom 0x5 -#define ide_tape 0x1 -#define ide_floppy 0x0 - -/* - * Special Driver Flags - */ -enum { - IDE_SFLAG_SET_GEOMETRY = BIT(0), - IDE_SFLAG_RECALIBRATE = BIT(1), - IDE_SFLAG_SET_MULTMODE = BIT(2), -}; - -/* - * Status returned from various ide_ functions - */ -typedef enum { - ide_stopped, /* no drive operation was started */ - ide_started, /* a drive operation was started, handler was set */ -} ide_startstop_t; - -enum { - IDE_VALID_ERROR = BIT(1), - IDE_VALID_FEATURE = IDE_VALID_ERROR, - IDE_VALID_NSECT = BIT(2), - IDE_VALID_LBAL = BIT(3), - IDE_VALID_LBAM = BIT(4), - IDE_VALID_LBAH = BIT(5), - IDE_VALID_DEVICE = BIT(6), - IDE_VALID_LBA = IDE_VALID_LBAL | - IDE_VALID_LBAM | - IDE_VALID_LBAH, - IDE_VALID_OUT_TF = IDE_VALID_FEATURE | - IDE_VALID_NSECT | - IDE_VALID_LBA, - IDE_VALID_IN_TF = IDE_VALID_NSECT | - IDE_VALID_LBA, - IDE_VALID_OUT_HOB = IDE_VALID_OUT_TF, - IDE_VALID_IN_HOB = IDE_VALID_ERROR | - IDE_VALID_NSECT | - IDE_VALID_LBA, -}; - -enum { - IDE_TFLAG_LBA48 = BIT(0), - IDE_TFLAG_WRITE = BIT(1), - IDE_TFLAG_CUSTOM_HANDLER = BIT(2), - IDE_TFLAG_DMA_PIO_FALLBACK = BIT(3), - /* force 16-bit I/O operations */ - IDE_TFLAG_IO_16BIT = BIT(4), - /* struct ide_cmd was allocated using kmalloc() */ - IDE_TFLAG_DYN = BIT(5), - IDE_TFLAG_FS = BIT(6), - IDE_TFLAG_MULTI_PIO = BIT(7), - IDE_TFLAG_SET_XFER = BIT(8), -}; - -enum { - IDE_FTFLAG_FLAGGED = BIT(0), - IDE_FTFLAG_SET_IN_FLAGS = BIT(1), - IDE_FTFLAG_OUT_DATA = BIT(2), - IDE_FTFLAG_IN_DATA = BIT(3), -}; - -struct ide_taskfile { - u8 data; /* 0: data byte (for TASKFILE ioctl) */ - union { /* 1: */ - u8 error; /* read: error */ - u8 feature; /* write: feature */ - }; - u8 nsect; /* 2: number of sectors */ - u8 lbal; /* 3: LBA low */ - u8 lbam; /* 4: LBA mid */ - u8 lbah; /* 5: LBA high */ - u8 device; /* 6: device select */ - union { /* 7: */ - u8 status; /* read: status */ - u8 command; /* write: command */ - }; -}; - -struct ide_cmd { - struct ide_taskfile tf; - struct ide_taskfile hob; - struct { - struct { - u8 tf; - u8 hob; - } out, in; - } valid; - - u16 tf_flags; - u8 ftf_flags; /* for TASKFILE ioctl */ - int protocol; - - int sg_nents; /* number of sg entries */ - int orig_sg_nents; - int sg_dma_direction; /* DMA transfer direction */ - - unsigned int nbytes; - unsigned int nleft; - unsigned int last_xfer_len; - - struct scatterlist *cursg; - unsigned int cursg_ofs; - - struct request *rq; /* copy of request */ -}; - -/* ATAPI packet command flags */ -enum { - /* set when an error is considered normal - no retry (ide-tape) */ - PC_FLAG_ABORT = BIT(0), - PC_FLAG_SUPPRESS_ERROR = BIT(1), - PC_FLAG_WAIT_FOR_DSC = BIT(2), - PC_FLAG_DMA_OK = BIT(3), - PC_FLAG_DMA_IN_PROGRESS = BIT(4), - PC_FLAG_DMA_ERROR = BIT(5), - PC_FLAG_WRITING = BIT(6), -}; - -#define ATAPI_WAIT_PC (60 * HZ) - -struct ide_atapi_pc { - /* actual packet bytes */ - u8 c[12]; - /* incremented on each retry */ - int retries; - int error; - - /* bytes to transfer */ - int req_xfer; - - /* the corresponding request */ - struct request *rq; - - unsigned long flags; - - /* - * those are more or less driver-specific and some of them are subject - * to change/removal later. - */ - unsigned long timeout; -}; - -struct ide_devset; -struct ide_driver; - -#ifdef CONFIG_BLK_DEV_IDEACPI -struct ide_acpi_drive_link; -struct ide_acpi_hwif_link; -#endif - -struct ide_drive_s; - -struct ide_disk_ops { - int (*check)(struct ide_drive_s *, const char *); - int (*get_capacity)(struct ide_drive_s *); - void (*unlock_native_capacity)(struct ide_drive_s *); - void (*setup)(struct ide_drive_s *); - void (*flush)(struct ide_drive_s *); - int (*init_media)(struct ide_drive_s *, struct gendisk *); - int (*set_doorlock)(struct ide_drive_s *, struct gendisk *, - int); - ide_startstop_t (*do_request)(struct ide_drive_s *, struct request *, - sector_t); - int (*ioctl)(struct ide_drive_s *, struct block_device *, - fmode_t, unsigned int, unsigned long); - int (*compat_ioctl)(struct ide_drive_s *, struct block_device *, - fmode_t, unsigned int, unsigned long); -}; - -/* ATAPI device flags */ -enum { - IDE_AFLAG_DRQ_INTERRUPT = BIT(0), - - /* ide-cd */ - /* Drive cannot eject the disc. */ - IDE_AFLAG_NO_EJECT = BIT(1), - /* Drive is a pre ATAPI 1.2 drive. */ - IDE_AFLAG_PRE_ATAPI12 = BIT(2), - /* TOC addresses are in BCD. */ - IDE_AFLAG_TOCADDR_AS_BCD = BIT(3), - /* TOC track numbers are in BCD. */ - IDE_AFLAG_TOCTRACKS_AS_BCD = BIT(4), - /* Saved TOC information is current. */ - IDE_AFLAG_TOC_VALID = BIT(6), - /* We think that the drive door is locked. */ - IDE_AFLAG_DOOR_LOCKED = BIT(7), - /* SET_CD_SPEED command is unsupported. */ - IDE_AFLAG_NO_SPEED_SELECT = BIT(8), - IDE_AFLAG_VERTOS_300_SSD = BIT(9), - IDE_AFLAG_VERTOS_600_ESD = BIT(10), - IDE_AFLAG_SANYO_3CD = BIT(11), - IDE_AFLAG_FULL_CAPS_PAGE = BIT(12), - IDE_AFLAG_PLAY_AUDIO_OK = BIT(13), - IDE_AFLAG_LE_SPEED_FIELDS = BIT(14), - - /* ide-floppy */ - /* Avoid commands not supported in Clik drive */ - IDE_AFLAG_CLIK_DRIVE = BIT(15), - /* Requires BH algorithm for packets */ - IDE_AFLAG_ZIP_DRIVE = BIT(16), - /* Supports format progress report */ - IDE_AFLAG_SRFP = BIT(17), - - /* ide-tape */ - IDE_AFLAG_IGNORE_DSC = BIT(18), - /* 0 When the tape position is unknown */ - IDE_AFLAG_ADDRESS_VALID = BIT(19), - /* Device already opened */ - IDE_AFLAG_BUSY = BIT(20), - /* Attempt to auto-detect the current user block size */ - IDE_AFLAG_DETECT_BS = BIT(21), - /* Currently on a filemark */ - IDE_AFLAG_FILEMARK = BIT(22), - /* 0 = no tape is loaded, so we don't rewind after ejecting */ - IDE_AFLAG_MEDIUM_PRESENT = BIT(23), - - IDE_AFLAG_NO_AUTOCLOSE = BIT(24), -}; - -/* device flags */ -enum { - /* restore settings after device reset */ - IDE_DFLAG_KEEP_SETTINGS = BIT(0), - /* device is using DMA for read/write */ - IDE_DFLAG_USING_DMA = BIT(1), - /* okay to unmask other IRQs */ - IDE_DFLAG_UNMASK = BIT(2), - /* don't attempt flushes */ - IDE_DFLAG_NOFLUSH = BIT(3), - /* DSC overlap */ - IDE_DFLAG_DSC_OVERLAP = BIT(4), - /* give potential excess bandwidth */ - IDE_DFLAG_NICE1 = BIT(5), - /* device is physically present */ - IDE_DFLAG_PRESENT = BIT(6), - /* disable Host Protected Area */ - IDE_DFLAG_NOHPA = BIT(7), - /* id read from device (synthetic if not set) */ - IDE_DFLAG_ID_READ = BIT(8), - IDE_DFLAG_NOPROBE = BIT(9), - /* need to do check_media_change() */ - IDE_DFLAG_REMOVABLE = BIT(10), - IDE_DFLAG_FORCED_GEOM = BIT(12), - /* disallow setting unmask bit */ - IDE_DFLAG_NO_UNMASK = BIT(13), - /* disallow enabling 32-bit I/O */ - IDE_DFLAG_NO_IO_32BIT = BIT(14), - /* for removable only: door lock/unlock works */ - IDE_DFLAG_DOORLOCKING = BIT(15), - /* disallow DMA */ - IDE_DFLAG_NODMA = BIT(16), - /* powermanagement told us not to do anything, so sleep nicely */ - IDE_DFLAG_BLOCKED = BIT(17), - /* sleeping & sleep field valid */ - IDE_DFLAG_SLEEPING = BIT(18), - IDE_DFLAG_POST_RESET = BIT(19), - IDE_DFLAG_UDMA33_WARNED = BIT(20), - IDE_DFLAG_LBA48 = BIT(21), - /* status of write cache */ - IDE_DFLAG_WCACHE = BIT(22), - /* used for ignoring ATA_DF */ - IDE_DFLAG_NOWERR = BIT(23), - /* retrying in PIO */ - IDE_DFLAG_DMA_PIO_RETRY = BIT(24), - IDE_DFLAG_LBA = BIT(25), - /* don't unload heads */ - IDE_DFLAG_NO_UNLOAD = BIT(26), - /* heads unloaded, please don't reset port */ - IDE_DFLAG_PARKED = BIT(27), - IDE_DFLAG_MEDIA_CHANGED = BIT(28), - /* write protect */ - IDE_DFLAG_WP = BIT(29), - IDE_DFLAG_FORMAT_IN_PROGRESS = BIT(30), - IDE_DFLAG_NIEN_QUIRK = BIT(31), -}; - -struct ide_drive_s { - char name[4]; /* drive name, such as "hda" */ - char driver_req[10]; /* requests specific driver */ - - struct request_queue *queue; /* request queue */ - - bool (*prep_rq)(struct ide_drive_s *, struct request *); - - struct blk_mq_tag_set tag_set; - - struct request *rq; /* current request */ - void *driver_data; /* extra driver data */ - u16 *id; /* identification info */ -#ifdef CONFIG_IDE_PROC_FS - struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ - const struct ide_proc_devset *settings; /* /proc/ide/ drive settings */ -#endif - struct hwif_s *hwif; /* actually (ide_hwif_t *) */ - - const struct ide_disk_ops *disk_ops; - - unsigned long dev_flags; - - unsigned long sleep; /* sleep until this time */ - unsigned long timeout; /* max time to wait for irq */ - - u8 special_flags; /* special action flags */ - - u8 select; /* basic drive/head select reg value */ - u8 retry_pio; /* retrying dma capable host in pio */ - u8 waiting_for_dma; /* dma currently in progress */ - u8 dma; /* atapi dma flag */ - - u8 init_speed; /* transfer rate set at boot */ - u8 current_speed; /* current transfer rate set */ - u8 desired_speed; /* desired transfer rate set */ - u8 pio_mode; /* for ->set_pio_mode _only_ */ - u8 dma_mode; /* for ->set_dma_mode _only_ */ - u8 dn; /* now wide spread use */ - u8 acoustic; /* acoustic management */ - u8 media; /* disk, cdrom, tape, floppy, ... */ - u8 ready_stat; /* min status value for drive ready */ - u8 mult_count; /* current multiple sector setting */ - u8 mult_req; /* requested multiple sector setting */ - u8 io_32bit; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */ - u8 bad_wstat; /* used for ignoring ATA_DF */ - u8 head; /* "real" number of heads */ - u8 sect; /* "real" sectors per track */ - u8 bios_head; /* BIOS/fdisk/LILO number of heads */ - u8 bios_sect; /* BIOS/fdisk/LILO sectors per track */ - - /* delay this long before sending packet command */ - u8 pc_delay; - - unsigned int bios_cyl; /* BIOS/fdisk/LILO number of cyls */ - unsigned int cyl; /* "real" number of cyls */ - void *drive_data; /* used by set_pio_mode/dev_select() */ - unsigned int failures; /* current failure count */ - unsigned int max_failures; /* maximum allowed failure count */ - u64 probed_capacity;/* initial/native media capacity */ - u64 capacity64; /* total number of sectors */ - - int lun; /* logical unit */ - int crc_count; /* crc counter to reduce drive speed */ - - unsigned long debug_mask; /* debugging levels switch */ - -#ifdef CONFIG_BLK_DEV_IDEACPI - struct ide_acpi_drive_link *acpidata; -#endif - struct list_head list; - struct device gendev; - struct completion gendev_rel_comp; /* to deal with device release() */ - - /* current packet command */ - struct ide_atapi_pc *pc; - - /* last failed packet command */ - struct ide_atapi_pc *failed_pc; - - /* callback for packet commands */ - int (*pc_callback)(struct ide_drive_s *, int); - - ide_startstop_t (*irq_handler)(struct ide_drive_s *); - - unsigned long atapi_flags; - - struct ide_atapi_pc request_sense_pc; - - /* current sense rq and buffer */ - bool sense_rq_armed; - bool sense_rq_active; - struct request *sense_rq; - struct request_sense sense_data; - - /* async sense insertion */ - struct work_struct rq_work; - struct list_head rq_list; -}; - -typedef struct ide_drive_s ide_drive_t; - -#define to_ide_device(dev) container_of(dev, ide_drive_t, gendev) - -#define to_ide_drv(obj, cont_type) \ - container_of(obj, struct cont_type, dev) - -#define ide_drv_g(disk, cont_type) \ - container_of((disk)->private_data, struct cont_type, driver) - -struct ide_port_info; - -struct ide_tp_ops { - void (*exec_command)(struct hwif_s *, u8); - u8 (*read_status)(struct hwif_s *); - u8 (*read_altstatus)(struct hwif_s *); - void (*write_devctl)(struct hwif_s *, u8); - - void (*dev_select)(ide_drive_t *); - void (*tf_load)(ide_drive_t *, struct ide_taskfile *, u8); - void (*tf_read)(ide_drive_t *, struct ide_taskfile *, u8); - - void (*input_data)(ide_drive_t *, struct ide_cmd *, - void *, unsigned int); - void (*output_data)(ide_drive_t *, struct ide_cmd *, - void *, unsigned int); -}; - -extern const struct ide_tp_ops default_tp_ops; - -/** - * struct ide_port_ops - IDE port operations - * - * @init_dev: host specific initialization of a device - * @set_pio_mode: routine to program host for PIO mode - * @set_dma_mode: routine to program host for DMA mode - * @reset_poll: chipset polling based on hba specifics - * @pre_reset: chipset specific changes to default for device-hba resets - * @resetproc: routine to reset controller after a disk reset - * @maskproc: special host masking for drive selection - * @quirkproc: check host's drive quirk list - * @clear_irq: clear IRQ - * - * @mdma_filter: filter MDMA modes - * @udma_filter: filter UDMA modes - * - * @cable_detect: detect cable type - */ -struct ide_port_ops { - void (*init_dev)(ide_drive_t *); - void (*set_pio_mode)(struct hwif_s *, ide_drive_t *); - void (*set_dma_mode)(struct hwif_s *, ide_drive_t *); - blk_status_t (*reset_poll)(ide_drive_t *); - void (*pre_reset)(ide_drive_t *); - void (*resetproc)(ide_drive_t *); - void (*maskproc)(ide_drive_t *, int); - void (*quirkproc)(ide_drive_t *); - void (*clear_irq)(ide_drive_t *); - int (*test_irq)(struct hwif_s *); - - u8 (*mdma_filter)(ide_drive_t *); - u8 (*udma_filter)(ide_drive_t *); - - u8 (*cable_detect)(struct hwif_s *); -}; - -struct ide_dma_ops { - void (*dma_host_set)(struct ide_drive_s *, int); - int (*dma_setup)(struct ide_drive_s *, struct ide_cmd *); - void (*dma_start)(struct ide_drive_s *); - int (*dma_end)(struct ide_drive_s *); - int (*dma_test_irq)(struct ide_drive_s *); - void (*dma_lost_irq)(struct ide_drive_s *); - /* below ones are optional */ - int (*dma_check)(struct ide_drive_s *, struct ide_cmd *); - int (*dma_timer_expiry)(struct ide_drive_s *); - void (*dma_clear)(struct ide_drive_s *); - /* - * The following method is optional and only required to be - * implemented for the SFF-8038i compatible controllers. - */ - u8 (*dma_sff_read_status)(struct hwif_s *); -}; - -enum { - IDE_PFLAG_PROBING = BIT(0), -}; - -struct ide_host; - -typedef struct hwif_s { - struct hwif_s *mate; /* other hwif from same PCI chip */ - struct proc_dir_entry *proc; /* /proc/ide/ directory entry */ - - struct ide_host *host; - - char name[6]; /* name of interface, eg. "ide0" */ - - struct ide_io_ports io_ports; - - unsigned long sata_scr[SATA_NR_PORTS]; - - ide_drive_t *devices[MAX_DRIVES + 1]; - - unsigned long port_flags; - - u8 major; /* our major number */ - u8 index; /* 0 for ide0; 1 for ide1; ... */ - u8 channel; /* for dual-port chips: 0=primary, 1=secondary */ - - u32 host_flags; - - u8 pio_mask; - - u8 ultra_mask; - u8 mwdma_mask; - u8 swdma_mask; - - u8 cbl; /* cable type */ - - hwif_chipset_t chipset; /* sub-module for tuning.. */ - - struct device *dev; - - void (*rw_disk)(ide_drive_t *, struct request *); - - const struct ide_tp_ops *tp_ops; - const struct ide_port_ops *port_ops; - const struct ide_dma_ops *dma_ops; - - /* dma physical region descriptor table (cpu view) */ - unsigned int *dmatable_cpu; - /* dma physical region descriptor table (dma view) */ - dma_addr_t dmatable_dma; - - /* maximum number of PRD table entries */ - int prd_max_nents; - /* PRD entry size in bytes */ - int prd_ent_size; - - /* Scatter-gather list used to build the above */ - struct scatterlist *sg_table; - int sg_max_nents; /* Maximum number of entries in it */ - - struct ide_cmd cmd; /* current command */ - - int rqsize; /* max sectors per request */ - int irq; /* our irq number */ - - unsigned long dma_base; /* base addr for dma ports */ - - unsigned long config_data; /* for use by chipset-specific code */ - unsigned long select_data; /* for use by chipset-specific code */ - - unsigned long extra_base; /* extra addr for dma ports */ - unsigned extra_ports; /* number of extra dma ports */ - - unsigned present : 1; /* this interface exists */ - unsigned busy : 1; /* serializes devices on a port */ - - struct device gendev; - struct device *portdev; - - struct completion gendev_rel_comp; /* To deal with device release() */ - - void *hwif_data; /* extra hwif data */ - -#ifdef CONFIG_BLK_DEV_IDEACPI - struct ide_acpi_hwif_link *acpidata; -#endif - - /* IRQ handler, if active */ - ide_startstop_t (*handler)(ide_drive_t *); - - /* BOOL: polling active & poll_timeout field valid */ - unsigned int polling : 1; - - /* current drive */ - ide_drive_t *cur_dev; - - /* current request */ - struct request *rq; - - /* failsafe timer */ - struct timer_list timer; - /* timeout value during long polls */ - unsigned long poll_timeout; - /* queried upon timeouts */ - int (*expiry)(ide_drive_t *); - - int req_gen; - int req_gen_timer; - - spinlock_t lock; -} ____cacheline_internodealigned_in_smp ide_hwif_t; - -#define MAX_HOST_PORTS 4 - -struct ide_host { - ide_hwif_t *ports[MAX_HOST_PORTS + 1]; - unsigned int n_ports; - struct device *dev[2]; - - int (*init_chipset)(struct pci_dev *); - - void (*get_lock)(irq_handler_t, void *); - void (*release_lock)(void); - - irq_handler_t irq_handler; - - unsigned long host_flags; - - int irq_flags; - - void *host_priv; - ide_hwif_t *cur_port; /* for hosts requiring serialization */ - - /* used for hosts requiring serialization */ - volatile unsigned long host_busy; -}; - -#define IDE_HOST_BUSY 0 - -/* - * internal ide interrupt handler type - */ -typedef ide_startstop_t (ide_handler_t)(ide_drive_t *); -typedef int (ide_expiry_t)(ide_drive_t *); - -/* used by ide-cd, ide-floppy, etc. */ -typedef void (xfer_func_t)(ide_drive_t *, struct ide_cmd *, void *, unsigned); - -extern struct mutex ide_setting_mtx; - -/* - * configurable drive settings - */ - -#define DS_SYNC BIT(0) - -struct ide_devset { - int (*get)(ide_drive_t *); - int (*set)(ide_drive_t *, int); - unsigned int flags; -}; - -#define __DEVSET(_flags, _get, _set) { \ - .flags = _flags, \ - .get = _get, \ - .set = _set, \ -} - -#define ide_devset_get(name, field) \ -static int get_##name(ide_drive_t *drive) \ -{ \ - return drive->field; \ -} - -#define ide_devset_set(name, field) \ -static int set_##name(ide_drive_t *drive, int arg) \ -{ \ - drive->field = arg; \ - return 0; \ -} - -#define ide_devset_get_flag(name, flag) \ -static int get_##name(ide_drive_t *drive) \ -{ \ - return !!(drive->dev_flags & flag); \ -} - -#define ide_devset_set_flag(name, flag) \ -static int set_##name(ide_drive_t *drive, int arg) \ -{ \ - if (arg) \ - drive->dev_flags |= flag; \ - else \ - drive->dev_flags &= ~flag; \ - return 0; \ -} - -#define __IDE_DEVSET(_name, _flags, _get, _set) \ -const struct ide_devset ide_devset_##_name = \ - __DEVSET(_flags, _get, _set) - -#define IDE_DEVSET(_name, _flags, _get, _set) \ -static __IDE_DEVSET(_name, _flags, _get, _set) - -#define ide_devset_rw(_name, _func) \ -IDE_DEVSET(_name, 0, get_##_func, set_##_func) - -#define ide_devset_w(_name, _func) \ -IDE_DEVSET(_name, 0, NULL, set_##_func) - -#define ide_ext_devset_rw(_name, _func) \ -__IDE_DEVSET(_name, 0, get_##_func, set_##_func) - -#define ide_ext_devset_rw_sync(_name, _func) \ -__IDE_DEVSET(_name, DS_SYNC, get_##_func, set_##_func) - -#define ide_decl_devset(_name) \ -extern const struct ide_devset ide_devset_##_name - -ide_decl_devset(io_32bit); -ide_decl_devset(keepsettings); -ide_decl_devset(pio_mode); -ide_decl_devset(unmaskirq); -ide_decl_devset(using_dma); - -#ifdef CONFIG_IDE_PROC_FS -/* - * /proc/ide interface - */ - -#define ide_devset_rw_field(_name, _field) \ -ide_devset_get(_name, _field); \ -ide_devset_set(_name, _field); \ -IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) - -#define ide_devset_ro_field(_name, _field) \ -ide_devset_get(_name, _field); \ -IDE_DEVSET(_name, 0, get_##_name, NULL) - -#define ide_devset_rw_flag(_name, _field) \ -ide_devset_get_flag(_name, _field); \ -ide_devset_set_flag(_name, _field); \ -IDE_DEVSET(_name, DS_SYNC, get_##_name, set_##_name) - -struct ide_proc_devset { - const char *name; - const struct ide_devset *setting; - int min, max; - int (*mulf)(ide_drive_t *); - int (*divf)(ide_drive_t *); -}; - -#define __IDE_PROC_DEVSET(_name, _min, _max, _mulf, _divf) { \ - .name = __stringify(_name), \ - .setting = &ide_devset_##_name, \ - .min = _min, \ - .max = _max, \ - .mulf = _mulf, \ - .divf = _divf, \ -} - -#define IDE_PROC_DEVSET(_name, _min, _max) \ -__IDE_PROC_DEVSET(_name, _min, _max, NULL, NULL) - -typedef struct { - const char *name; - umode_t mode; - int (*show)(struct seq_file *, void *); -} ide_proc_entry_t; - -void proc_ide_create(void); -void proc_ide_destroy(void); -void ide_proc_register_port(ide_hwif_t *); -void ide_proc_port_register_devices(ide_hwif_t *); -void ide_proc_unregister_device(ide_drive_t *); -void ide_proc_unregister_port(ide_hwif_t *); -void ide_proc_register_driver(ide_drive_t *, struct ide_driver *); -void ide_proc_unregister_driver(ide_drive_t *, struct ide_driver *); - -int ide_capacity_proc_show(struct seq_file *m, void *v); -int ide_geometry_proc_show(struct seq_file *m, void *v); -#else -static inline void proc_ide_create(void) { ; } -static inline void proc_ide_destroy(void) { ; } -static inline void ide_proc_register_port(ide_hwif_t *hwif) { ; } -static inline void ide_proc_port_register_devices(ide_hwif_t *hwif) { ; } -static inline void ide_proc_unregister_device(ide_drive_t *drive) { ; } -static inline void ide_proc_unregister_port(ide_hwif_t *hwif) { ; } -static inline void ide_proc_register_driver(ide_drive_t *drive, - struct ide_driver *driver) { ; } -static inline void ide_proc_unregister_driver(ide_drive_t *drive, - struct ide_driver *driver) { ; } -#endif - -enum { - /* enter/exit functions */ - IDE_DBG_FUNC = BIT(0), - /* sense key/asc handling */ - IDE_DBG_SENSE = BIT(1), - /* packet commands handling */ - IDE_DBG_PC = BIT(2), - /* request handling */ - IDE_DBG_RQ = BIT(3), - /* driver probing/setup */ - IDE_DBG_PROBE = BIT(4), -}; - -/* DRV_NAME has to be defined in the driver before using the macro below */ -#define __ide_debug_log(lvl, fmt, args...) \ -{ \ - if (unlikely(drive->debug_mask & lvl)) \ - printk(KERN_INFO DRV_NAME ": %s: " fmt "\n", \ - __func__, ## args); \ -} - -/* - * Power Management state machine (rq->pm->pm_step). - * - * For each step, the core calls ide_start_power_step() first. - * This can return: - * - ide_stopped : In this case, the core calls us back again unless - * step have been set to ide_power_state_completed. - * - ide_started : In this case, the channel is left busy until an - * async event (interrupt) occurs. - * Typically, ide_start_power_step() will issue a taskfile request with - * do_rw_taskfile(). - * - * Upon reception of the interrupt, the core will call ide_complete_power_step() - * with the error code if any. This routine should update the step value - * and return. It should not start a new request. The core will call - * ide_start_power_step() for the new step value, unless step have been - * set to IDE_PM_COMPLETED. - */ -enum { - IDE_PM_START_SUSPEND, - IDE_PM_FLUSH_CACHE = IDE_PM_START_SUSPEND, - IDE_PM_STANDBY, - - IDE_PM_START_RESUME, - IDE_PM_RESTORE_PIO = IDE_PM_START_RESUME, - IDE_PM_IDLE, - IDE_PM_RESTORE_DMA, - - IDE_PM_COMPLETED, -}; - -int generic_ide_suspend(struct device *, pm_message_t); -int generic_ide_resume(struct device *); - -void ide_complete_power_step(ide_drive_t *, struct request *); -ide_startstop_t ide_start_power_step(ide_drive_t *, struct request *); -void ide_complete_pm_rq(ide_drive_t *, struct request *); -void ide_check_pm_state(ide_drive_t *, struct request *); - -/* - * Subdrivers support. - * - * The gendriver.owner field should be set to the module owner of this driver. - * The gendriver.name field should be set to the name of this driver - */ -struct ide_driver { - const char *version; - ide_startstop_t (*do_request)(ide_drive_t *, struct request *, sector_t); - struct device_driver gen_driver; - int (*probe)(ide_drive_t *); - void (*remove)(ide_drive_t *); - void (*resume)(ide_drive_t *); - void (*shutdown)(ide_drive_t *); -#ifdef CONFIG_IDE_PROC_FS - ide_proc_entry_t * (*proc_entries)(ide_drive_t *); - const struct ide_proc_devset * (*proc_devsets)(ide_drive_t *); -#endif -}; - -#define to_ide_driver(drv) container_of(drv, struct ide_driver, gen_driver) - -int ide_device_get(ide_drive_t *); -void ide_device_put(ide_drive_t *); - -struct ide_ioctl_devset { - unsigned int get_ioctl; - unsigned int set_ioctl; - const struct ide_devset *setting; -}; - -int ide_setting_ioctl(ide_drive_t *, struct block_device *, unsigned int, - unsigned long, const struct ide_ioctl_devset *); - -int generic_ide_ioctl(ide_drive_t *, struct block_device *, unsigned, unsigned long); - -extern int ide_vlb_clk; -extern int ide_pci_clk; - -int ide_end_rq(ide_drive_t *, struct request *, blk_status_t, unsigned int); -void ide_kill_rq(ide_drive_t *, struct request *); -void ide_insert_request_head(ide_drive_t *, struct request *); - -void __ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int); -void ide_set_handler(ide_drive_t *, ide_handler_t *, unsigned int); - -void ide_execute_command(ide_drive_t *, struct ide_cmd *, ide_handler_t *, - unsigned int); - -void ide_pad_transfer(ide_drive_t *, int, int); - -ide_startstop_t ide_error(ide_drive_t *, const char *, u8); - -void ide_fix_driveid(u16 *); - -extern void ide_fixstring(u8 *, const int, const int); - -int ide_busy_sleep(ide_drive_t *, unsigned long, int); - -int __ide_wait_stat(ide_drive_t *, u8, u8, unsigned long, u8 *); -int ide_wait_stat(ide_startstop_t *, ide_drive_t *, u8, u8, unsigned long); - -ide_startstop_t ide_do_park_unpark(ide_drive_t *, struct request *); -ide_startstop_t ide_do_devset(ide_drive_t *, struct request *); - -extern ide_startstop_t ide_do_reset (ide_drive_t *); - -extern int ide_devset_execute(ide_drive_t *drive, - const struct ide_devset *setting, int arg); - -void ide_complete_cmd(ide_drive_t *, struct ide_cmd *, u8, u8); -int ide_complete_rq(ide_drive_t *, blk_status_t, unsigned int); - -void ide_tf_readback(ide_drive_t *drive, struct ide_cmd *cmd); -void ide_tf_dump(const char *, struct ide_cmd *); - -void ide_exec_command(ide_hwif_t *, u8); -u8 ide_read_status(ide_hwif_t *); -u8 ide_read_altstatus(ide_hwif_t *); -void ide_write_devctl(ide_hwif_t *, u8); - -void ide_dev_select(ide_drive_t *); -void ide_tf_load(ide_drive_t *, struct ide_taskfile *, u8); -void ide_tf_read(ide_drive_t *, struct ide_taskfile *, u8); - -void ide_input_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int); -void ide_output_data(ide_drive_t *, struct ide_cmd *, void *, unsigned int); - -void SELECT_MASK(ide_drive_t *, int); - -u8 ide_read_error(ide_drive_t *); -void ide_read_bcount_and_ireason(ide_drive_t *, u16 *, u8 *); - -int ide_check_ireason(ide_drive_t *, struct request *, int, int, int); - -int ide_check_atapi_device(ide_drive_t *, const char *); - -void ide_init_pc(struct ide_atapi_pc *); - -/* Disk head parking */ -extern wait_queue_head_t ide_park_wq; -ssize_t ide_park_show(struct device *dev, struct device_attribute *attr, - char *buf); -ssize_t ide_park_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t len); - -/* - * Special requests for ide-tape block device strategy routine. - * - * In order to service a character device command, we add special requests to - * the tail of our block device request queue and wait for their completion. - */ -enum { - REQ_IDETAPE_PC1 = BIT(0), /* packet command (first stage) */ - REQ_IDETAPE_PC2 = BIT(1), /* packet command (second stage) */ - REQ_IDETAPE_READ = BIT(2), - REQ_IDETAPE_WRITE = BIT(3), -}; - -int ide_queue_pc_tail(ide_drive_t *, struct gendisk *, struct ide_atapi_pc *, - void *, unsigned int); - -int ide_do_test_unit_ready(ide_drive_t *, struct gendisk *); -int ide_do_start_stop(ide_drive_t *, struct gendisk *, int); -int ide_set_media_lock(ide_drive_t *, struct gendisk *, int); -void ide_create_request_sense_cmd(ide_drive_t *, struct ide_atapi_pc *); -void ide_retry_pc(ide_drive_t *drive); - -void ide_prep_sense(ide_drive_t *drive, struct request *rq); -int ide_queue_sense_rq(ide_drive_t *drive, void *special); - -int ide_cd_expiry(ide_drive_t *); - -int ide_cd_get_xferlen(struct request *); - -ide_startstop_t ide_issue_pc(ide_drive_t *, struct ide_cmd *); - -ide_startstop_t do_rw_taskfile(ide_drive_t *, struct ide_cmd *); - -void ide_pio_bytes(ide_drive_t *, struct ide_cmd *, unsigned int, unsigned int); - -void ide_finish_cmd(ide_drive_t *, struct ide_cmd *, u8); - -int ide_raw_taskfile(ide_drive_t *, struct ide_cmd *, u8 *, u16); -int ide_no_data_taskfile(ide_drive_t *, struct ide_cmd *); - -int ide_taskfile_ioctl(ide_drive_t *, unsigned long); - -int ide_dev_read_id(ide_drive_t *, u8, u16 *, int); - -extern int ide_driveid_update(ide_drive_t *); -extern int ide_config_drive_speed(ide_drive_t *, u8); -extern u8 eighty_ninty_three (ide_drive_t *); -extern int taskfile_lib_get_identify(ide_drive_t *drive, u8 *); - -extern int ide_wait_not_busy(ide_hwif_t *hwif, unsigned long timeout); - -extern void ide_stall_queue(ide_drive_t *drive, unsigned long timeout); - -extern void ide_timer_expiry(struct timer_list *t); -extern irqreturn_t ide_intr(int irq, void *dev_id); -extern blk_status_t ide_queue_rq(struct blk_mq_hw_ctx *, const struct blk_mq_queue_data *); -extern blk_status_t ide_issue_rq(ide_drive_t *, struct request *, bool); -extern void ide_requeue_and_plug(ide_drive_t *drive, struct request *rq); - -void ide_init_disk(struct gendisk *, ide_drive_t *); - -#ifdef CONFIG_IDEPCI_PCIBUS_ORDER -extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *owner, const char *mod_name); -#define ide_pci_register_driver(d) __ide_pci_register_driver(d, THIS_MODULE, KBUILD_MODNAME) -#else -#define ide_pci_register_driver(d) pci_register_driver(d) -#endif - -static inline int ide_pci_is_in_compatibility_mode(struct pci_dev *dev) -{ - if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5) - return 1; - return 0; -} - -void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, - struct ide_hw *, struct ide_hw **); -void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *); - -#ifdef CONFIG_BLK_DEV_IDEDMA_PCI -int ide_pci_set_master(struct pci_dev *, const char *); -unsigned long ide_pci_dma_base(ide_hwif_t *, const struct ide_port_info *); -int ide_pci_check_simplex(ide_hwif_t *, const struct ide_port_info *); -int ide_hwif_setup_dma(ide_hwif_t *, const struct ide_port_info *); -#else -static inline int ide_hwif_setup_dma(ide_hwif_t *hwif, - const struct ide_port_info *d) -{ - return -EINVAL; -} -#endif - -struct ide_pci_enablebit { - u8 reg; /* byte pci reg holding the enable-bit */ - u8 mask; /* mask to isolate the enable-bit */ - u8 val; /* value of masked reg when "enabled" */ -}; - -enum { - /* Uses ISA control ports not PCI ones. */ - IDE_HFLAG_ISA_PORTS = BIT(0), - /* single port device */ - IDE_HFLAG_SINGLE = BIT(1), - /* don't use legacy PIO blacklist */ - IDE_HFLAG_PIO_NO_BLACKLIST = BIT(2), - /* set for the second port of QD65xx */ - IDE_HFLAG_QD_2ND_PORT = BIT(3), - /* use PIO8/9 for prefetch off/on */ - IDE_HFLAG_ABUSE_PREFETCH = BIT(4), - /* use PIO6/7 for fast-devsel off/on */ - IDE_HFLAG_ABUSE_FAST_DEVSEL = BIT(5), - /* use 100-102 and 200-202 PIO values to set DMA modes */ - IDE_HFLAG_ABUSE_DMA_MODES = BIT(6), - /* - * keep DMA setting when programming PIO mode, may be used only - * for hosts which have separate PIO and DMA timings (ie. PMAC) - */ - IDE_HFLAG_SET_PIO_MODE_KEEP_DMA = BIT(7), - /* program host for the transfer mode after programming device */ - IDE_HFLAG_POST_SET_MODE = BIT(8), - /* don't program host/device for the transfer mode ("smart" hosts) */ - IDE_HFLAG_NO_SET_MODE = BIT(9), - /* trust BIOS for programming chipset/device for DMA */ - IDE_HFLAG_TRUST_BIOS_FOR_DMA = BIT(10), - /* host is CS5510/CS5520 */ - IDE_HFLAG_CS5520 = BIT(11), - /* ATAPI DMA is unsupported */ - IDE_HFLAG_NO_ATAPI_DMA = BIT(12), - /* set if host is a "non-bootable" controller */ - IDE_HFLAG_NON_BOOTABLE = BIT(13), - /* host doesn't support DMA */ - IDE_HFLAG_NO_DMA = BIT(14), - /* check if host is PCI IDE device before allowing DMA */ - IDE_HFLAG_NO_AUTODMA = BIT(15), - /* host uses MMIO */ - IDE_HFLAG_MMIO = BIT(16), - /* no LBA48 */ - IDE_HFLAG_NO_LBA48 = BIT(17), - /* no LBA48 DMA */ - IDE_HFLAG_NO_LBA48_DMA = BIT(18), - /* data FIFO is cleared by an error */ - IDE_HFLAG_ERROR_STOPS_FIFO = BIT(19), - /* serialize ports */ - IDE_HFLAG_SERIALIZE = BIT(20), - /* host is DTC2278 */ - IDE_HFLAG_DTC2278 = BIT(21), - /* 4 devices on a single set of I/O ports */ - IDE_HFLAG_4DRIVES = BIT(22), - /* host is TRM290 */ - IDE_HFLAG_TRM290 = BIT(23), - /* use 32-bit I/O ops */ - IDE_HFLAG_IO_32BIT = BIT(24), - /* unmask IRQs */ - IDE_HFLAG_UNMASK_IRQS = BIT(25), - IDE_HFLAG_BROKEN_ALTSTATUS = BIT(26), - /* serialize ports if DMA is possible (for sl82c105) */ - IDE_HFLAG_SERIALIZE_DMA = BIT(27), - /* force host out of "simplex" mode */ - IDE_HFLAG_CLEAR_SIMPLEX = BIT(28), - /* DSC overlap is unsupported */ - IDE_HFLAG_NO_DSC = BIT(29), - /* never use 32-bit I/O ops */ - IDE_HFLAG_NO_IO_32BIT = BIT(30), - /* never unmask IRQs */ - IDE_HFLAG_NO_UNMASK_IRQS = BIT(31), -}; - -#ifdef CONFIG_BLK_DEV_OFFBOARD -# define IDE_HFLAG_OFF_BOARD 0 -#else -# define IDE_HFLAG_OFF_BOARD IDE_HFLAG_NON_BOOTABLE -#endif - -struct ide_port_info { - char *name; - - int (*init_chipset)(struct pci_dev *); - - void (*get_lock)(irq_handler_t, void *); - void (*release_lock)(void); - - void (*init_iops)(ide_hwif_t *); - void (*init_hwif)(ide_hwif_t *); - int (*init_dma)(ide_hwif_t *, - const struct ide_port_info *); - - const struct ide_tp_ops *tp_ops; - const struct ide_port_ops *port_ops; - const struct ide_dma_ops *dma_ops; - - struct ide_pci_enablebit enablebits[2]; - - hwif_chipset_t chipset; - - u16 max_sectors; /* if < than the default one */ - - u32 host_flags; - - int irq_flags; - - u8 pio_mask; - u8 swdma_mask; - u8 mwdma_mask; - u8 udma_mask; -}; - -/* - * State information carried for REQ_TYPE_ATA_PM_SUSPEND and REQ_TYPE_ATA_PM_RESUME - * requests. - */ -struct ide_pm_state { - /* PM state machine step value, currently driver specific */ - int pm_step; - /* requested PM state value (S1, S2, S3, S4, ...) */ - u32 pm_state; - void* data; /* for driver use */ -}; - - -int ide_pci_init_one(struct pci_dev *, const struct ide_port_info *, void *); -int ide_pci_init_two(struct pci_dev *, struct pci_dev *, - const struct ide_port_info *, void *); -void ide_pci_remove(struct pci_dev *); - -#ifdef CONFIG_PM -int ide_pci_suspend(struct pci_dev *, pm_message_t); -int ide_pci_resume(struct pci_dev *); -#else -#define ide_pci_suspend NULL -#define ide_pci_resume NULL -#endif - -void ide_map_sg(ide_drive_t *, struct ide_cmd *); -void ide_init_sg_cmd(struct ide_cmd *, unsigned int); - -#define BAD_DMA_DRIVE 0 -#define GOOD_DMA_DRIVE 1 - -struct drive_list_entry { - const char *id_model; - const char *id_firmware; -}; - -int ide_in_drive_list(u16 *, const struct drive_list_entry *); - -#ifdef CONFIG_BLK_DEV_IDEDMA -int ide_dma_good_drive(ide_drive_t *); -int __ide_dma_bad_drive(ide_drive_t *); - -u8 ide_find_dma_mode(ide_drive_t *, u8); - -static inline u8 ide_max_dma_mode(ide_drive_t *drive) -{ - return ide_find_dma_mode(drive, XFER_UDMA_6); -} - -void ide_dma_off_quietly(ide_drive_t *); -void ide_dma_off(ide_drive_t *); -void ide_dma_on(ide_drive_t *); -int ide_set_dma(ide_drive_t *); -void ide_check_dma_crc(ide_drive_t *); -ide_startstop_t ide_dma_intr(ide_drive_t *); - -int ide_allocate_dma_engine(ide_hwif_t *); -void ide_release_dma_engine(ide_hwif_t *); - -int ide_dma_prepare(ide_drive_t *, struct ide_cmd *); -void ide_dma_unmap_sg(ide_drive_t *, struct ide_cmd *); - -#ifdef CONFIG_BLK_DEV_IDEDMA_SFF -int config_drive_for_dma(ide_drive_t *); -int ide_build_dmatable(ide_drive_t *, struct ide_cmd *); -void ide_dma_host_set(ide_drive_t *, int); -int ide_dma_setup(ide_drive_t *, struct ide_cmd *); -extern void ide_dma_start(ide_drive_t *); -int ide_dma_end(ide_drive_t *); -int ide_dma_test_irq(ide_drive_t *); -int ide_dma_sff_timer_expiry(ide_drive_t *); -u8 ide_dma_sff_read_status(ide_hwif_t *); -extern const struct ide_dma_ops sff_dma_ops; -#else -static inline int config_drive_for_dma(ide_drive_t *drive) { return 0; } -#endif /* CONFIG_BLK_DEV_IDEDMA_SFF */ - -void ide_dma_lost_irq(ide_drive_t *); -ide_startstop_t ide_dma_timeout_retry(ide_drive_t *, int); - -#else -static inline u8 ide_find_dma_mode(ide_drive_t *drive, u8 speed) { return 0; } -static inline u8 ide_max_dma_mode(ide_drive_t *drive) { return 0; } -static inline void ide_dma_off_quietly(ide_drive_t *drive) { ; } -static inline void ide_dma_off(ide_drive_t *drive) { ; } -static inline void ide_dma_on(ide_drive_t *drive) { ; } -static inline void ide_dma_verbose(ide_drive_t *drive) { ; } -static inline int ide_set_dma(ide_drive_t *drive) { return 1; } -static inline void ide_check_dma_crc(ide_drive_t *drive) { ; } -static inline ide_startstop_t ide_dma_intr(ide_drive_t *drive) { return ide_stopped; } -static inline ide_startstop_t ide_dma_timeout_retry(ide_drive_t *drive, int error) { return ide_stopped; } -static inline void ide_release_dma_engine(ide_hwif_t *hwif) { ; } -static inline int ide_dma_prepare(ide_drive_t *drive, - struct ide_cmd *cmd) { return 1; } -static inline void ide_dma_unmap_sg(ide_drive_t *drive, - struct ide_cmd *cmd) { ; } -#endif /* CONFIG_BLK_DEV_IDEDMA */ - -#ifdef CONFIG_BLK_DEV_IDEACPI -int ide_acpi_init(void); -bool ide_port_acpi(ide_hwif_t *hwif); -extern int ide_acpi_exec_tfs(ide_drive_t *drive); -extern void ide_acpi_get_timing(ide_hwif_t *hwif); -extern void ide_acpi_push_timing(ide_hwif_t *hwif); -void ide_acpi_init_port(ide_hwif_t *); -void ide_acpi_port_init_devices(ide_hwif_t *); -extern void ide_acpi_set_state(ide_hwif_t *hwif, int on); -#else -static inline int ide_acpi_init(void) { return 0; } -static inline bool ide_port_acpi(ide_hwif_t *hwif) { return 0; } -static inline int ide_acpi_exec_tfs(ide_drive_t *drive) { return 0; } -static inline void ide_acpi_get_timing(ide_hwif_t *hwif) { ; } -static inline void ide_acpi_push_timing(ide_hwif_t *hwif) { ; } -static inline void ide_acpi_init_port(ide_hwif_t *hwif) { ; } -static inline void ide_acpi_port_init_devices(ide_hwif_t *hwif) { ; } -static inline void ide_acpi_set_state(ide_hwif_t *hwif, int on) {} -#endif - -void ide_check_nien_quirk_list(ide_drive_t *); -void ide_undecoded_slave(ide_drive_t *); - -void ide_port_apply_params(ide_hwif_t *); -int ide_sysfs_register_port(ide_hwif_t *); - -struct ide_host *ide_host_alloc(const struct ide_port_info *, struct ide_hw **, - unsigned int); -void ide_host_free(struct ide_host *); -int ide_host_register(struct ide_host *, const struct ide_port_info *, - struct ide_hw **); -int ide_host_add(const struct ide_port_info *, struct ide_hw **, unsigned int, - struct ide_host **); -void ide_host_remove(struct ide_host *); -int ide_legacy_device_add(const struct ide_port_info *, unsigned long); -void ide_port_unregister_devices(ide_hwif_t *); -void ide_port_scan(ide_hwif_t *); - -static inline void *ide_get_hwifdata (ide_hwif_t * hwif) -{ - return hwif->hwif_data; -} - -static inline void ide_set_hwifdata (ide_hwif_t * hwif, void *data) -{ - hwif->hwif_data = data; -} - -u64 ide_get_lba_addr(struct ide_cmd *, int); -u8 ide_dump_status(ide_drive_t *, const char *, u8); - -struct ide_timing { - u8 mode; - u8 setup; /* t1 */ - u16 act8b; /* t2 for 8-bit io */ - u16 rec8b; /* t2i for 8-bit io */ - u16 cyc8b; /* t0 for 8-bit io */ - u16 active; /* t2 or tD */ - u16 recover; /* t2i or tK */ - u16 cycle; /* t0 */ - u16 udma; /* t2CYCTYP/2 */ -}; - -enum { - IDE_TIMING_SETUP = BIT(0), - IDE_TIMING_ACT8B = BIT(1), - IDE_TIMING_REC8B = BIT(2), - IDE_TIMING_CYC8B = BIT(3), - IDE_TIMING_8BIT = IDE_TIMING_ACT8B | IDE_TIMING_REC8B | - IDE_TIMING_CYC8B, - IDE_TIMING_ACTIVE = BIT(4), - IDE_TIMING_RECOVER = BIT(5), - IDE_TIMING_CYCLE = BIT(6), - IDE_TIMING_UDMA = BIT(7), - IDE_TIMING_ALL = IDE_TIMING_SETUP | IDE_TIMING_8BIT | - IDE_TIMING_ACTIVE | IDE_TIMING_RECOVER | - IDE_TIMING_CYCLE | IDE_TIMING_UDMA, -}; - -struct ide_timing *ide_timing_find_mode(u8); -u16 ide_pio_cycle_time(ide_drive_t *, u8); -void ide_timing_merge(struct ide_timing *, struct ide_timing *, - struct ide_timing *, unsigned int); -int ide_timing_compute(ide_drive_t *, u8, struct ide_timing *, int, int); - -#ifdef CONFIG_IDE_XFER_MODE -int ide_scan_pio_blacklist(char *); -const char *ide_xfer_verbose(u8); -int ide_pio_need_iordy(ide_drive_t *, const u8); -int ide_set_pio_mode(ide_drive_t *, u8); -int ide_set_dma_mode(ide_drive_t *, u8); -void ide_set_pio(ide_drive_t *, u8); -int ide_set_xfer_rate(ide_drive_t *, u8); -#else -static inline void ide_set_pio(ide_drive_t *drive, u8 pio) { ; } -static inline int ide_set_xfer_rate(ide_drive_t *drive, u8 rate) { return -1; } -#endif - -static inline void ide_set_max_pio(ide_drive_t *drive) -{ - ide_set_pio(drive, 255); -} - -char *ide_media_string(ide_drive_t *); - -extern const struct attribute_group *ide_dev_groups[]; -extern struct bus_type ide_bus_type; -extern struct class *ide_port_class; - -static inline void ide_dump_identify(u8 *id) -{ - print_hex_dump(KERN_INFO, "", DUMP_PREFIX_NONE, 16, 2, id, 512, 0); -} - -static inline int hwif_to_node(ide_hwif_t *hwif) -{ - return hwif->dev ? dev_to_node(hwif->dev) : -1; -} - -static inline ide_drive_t *ide_get_pair_dev(ide_drive_t *drive) -{ - ide_drive_t *peer = drive->hwif->devices[(drive->dn ^ 1) & 1]; - - return (peer->dev_flags & IDE_DFLAG_PRESENT) ? peer : NULL; -} - -static inline void *ide_get_drivedata(ide_drive_t *drive) -{ - return drive->drive_data; -} - -static inline void ide_set_drivedata(ide_drive_t *drive, void *data) -{ - drive->drive_data = data; -} - -#define ide_port_for_each_dev(i, dev, port) \ - for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) - -#define ide_port_for_each_present_dev(i, dev, port) \ - for ((i) = 0; ((dev) = (port)->devices[i]) || (i) < MAX_DRIVES; (i)++) \ - if ((dev)->dev_flags & IDE_DFLAG_PRESENT) - -#define ide_host_for_each_port(i, port, host) \ - for ((i) = 0; ((port) = (host)->ports[i]) || (i) < MAX_HOST_PORTS; (i)++) - - -#endif /* _IDE_H */ |