diff options
Diffstat (limited to 'drivers/ide/atiixp.c')
| -rw-r--r-- | drivers/ide/atiixp.c | 212 |
1 files changed, 0 insertions, 212 deletions
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"); |