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-rw-r--r--drivers/ide/mips/Makefile3
-rw-r--r--drivers/ide/mips/au1xxx-ide.c1498
2 files changed, 535 insertions, 966 deletions
diff --git a/drivers/ide/mips/Makefile b/drivers/ide/mips/Makefile
index 578e52a59588..677c7b2bac92 100644
--- a/drivers/ide/mips/Makefile
+++ b/drivers/ide/mips/Makefile
@@ -1 +1,4 @@
obj-$(CONFIG_BLK_DEV_IDE_SWARM) += swarm.o
+obj-$(CONFIG_BLK_DEV_IDE_AU1XXX) += au1xxx-ide.o
+
+EXTRA_CFLAGS := -Idrivers/ide
diff --git a/drivers/ide/mips/au1xxx-ide.c b/drivers/ide/mips/au1xxx-ide.c
index 2b6327c576b9..32431dcf5d8e 100644
--- a/drivers/ide/mips/au1xxx-ide.c
+++ b/drivers/ide/mips/au1xxx-ide.c
@@ -31,865 +31,638 @@
*/
#undef REALLY_SLOW_IO /* most systems can safely undef this */
-#include <linux/config.h> /* for CONFIG_BLK_DEV_IDEPCI */
#include <linux/types.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/delay.h>
-#include <linux/timer.h>
-#include <linux/mm.h>
-#include <linux/ioport.h>
-#include <linux/hdreg.h>
+#include <linux/platform_device.h>
+
#include <linux/init.h>
#include <linux/ide.h>
#include <linux/sysdev.h>
#include <linux/dma-mapping.h>
+#include "ide-timing.h"
+
#include <asm/io.h>
#include <asm/mach-au1x00/au1xxx.h>
#include <asm/mach-au1x00/au1xxx_dbdma.h>
-#if CONFIG_PM
-#include <asm/mach-au1x00/au1xxx_pm.h>
-#endif
-
#include <asm/mach-au1x00/au1xxx_ide.h>
#define DRV_NAME "au1200-ide"
#define DRV_VERSION "1.0"
-#define DRV_AUTHOR "AMD PCS / Pete Popov <ppopov@embeddedalley.com>"
-#define DRV_DESC "Au1200 IDE"
-
-static _auide_hwif auide_hwif;
-static spinlock_t ide_tune_drive_spin_lock = SPIN_LOCK_UNLOCKED;
-static spinlock_t ide_tune_chipset_spin_lock = SPIN_LOCK_UNLOCKED;
-static int dbdma_init_done = 0;
-
-/*
- * local I/O functions
- */
-u8 auide_inb(unsigned long port)
-{
- return (au_readb(port));
-}
+#define DRV_AUTHOR "Enrico Walther <enrico.walther@amd.com> / Pete Popov <ppopov@embeddedalley.com>"
-u16 auide_inw(unsigned long port)
-{
- return (au_readw(port));
-}
+/* enable the burstmode in the dbdma */
+#define IDE_AU1XXX_BURSTMODE 1
-u32 auide_inl(unsigned long port)
-{
- return (au_readl(port));
-}
+static _auide_hwif auide_hwif;
+static int dbdma_init_done;
-void auide_insw(unsigned long port, void *addr, u32 count)
-{
#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA)
- _auide_hwif *ahwif = &auide_hwif;
- chan_tab_t *ctp;
- au1x_ddma_desc_t *dp;
-
- if(!put_dest_flags(ahwif->rx_chan, (void*)addr, count << 1,
- DDMA_FLAGS_NOIE)) {
- printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__);
- return;
- }
- ctp = *((chan_tab_t **)ahwif->rx_chan);
- dp = ctp->cur_ptr;
- while (dp->dscr_cmd0 & DSCR_CMD0_V)
- ;
- ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp);
-#else
- while (count--)
- {
- *(u16 *)addr = au_readw(port);
- addr +=2 ;
- }
-#endif
-}
-
-void auide_insl(unsigned long port, void *addr, u32 count)
-{
- while (count--)
- {
- *(u32 *)addr = au_readl(port);
- /* NOTE: For IDE interfaces over PCMCIA,
- * 32-bit access does not work
- */
- addr += 4;
- }
-}
-
-void auide_outb(u8 addr, unsigned long port)
+void auide_insw(unsigned long port, void *addr, u32 count)
{
- return (au_writeb(addr, port));
-}
+ _auide_hwif *ahwif = &auide_hwif;
+ chan_tab_t *ctp;
+ au1x_ddma_desc_t *dp;
-void auide_outbsync(ide_drive_t *drive, u8 addr, unsigned long port)
-{
- return (au_writeb(addr, port));
+ if(!put_dest_flags(ahwif->rx_chan, (void*)addr, count << 1,
+ DDMA_FLAGS_NOIE)) {
+ printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__);
+ return;
+ }
+ ctp = *((chan_tab_t **)ahwif->rx_chan);
+ dp = ctp->cur_ptr;
+ while (dp->dscr_cmd0 & DSCR_CMD0_V)
+ ;
+ ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp);
}
-void auide_outw(u16 addr, unsigned long port)
+void auide_outsw(unsigned long port, void *addr, u32 count)
{
- return (au_writew(addr, port));
-}
+ _auide_hwif *ahwif = &auide_hwif;
+ chan_tab_t *ctp;
+ au1x_ddma_desc_t *dp;
-void auide_outl(u32 addr, unsigned long port)
-{
- return (au_writel(addr, port));
+ if(!put_source_flags(ahwif->tx_chan, (void*)addr,
+ count << 1, DDMA_FLAGS_NOIE)) {
+ printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__);
+ return;
+ }
+ ctp = *((chan_tab_t **)ahwif->tx_chan);
+ dp = ctp->cur_ptr;
+ while (dp->dscr_cmd0 & DSCR_CMD0_V)
+ ;
+ ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp);
}
-void auide_outsw(unsigned long port, void *addr, u32 count)
-{
-#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA)
- _auide_hwif *ahwif = &auide_hwif;
- chan_tab_t *ctp;
- au1x_ddma_desc_t *dp;
-
- if(!put_source_flags(ahwif->tx_chan, (void*)addr,
- count << 1, DDMA_FLAGS_NOIE)) {
- printk(KERN_ERR "%s failed %d\n", __FUNCTION__, __LINE__);
- return;
- }
- ctp = *((chan_tab_t **)ahwif->tx_chan);
- dp = ctp->cur_ptr;
- while (dp->dscr_cmd0 & DSCR_CMD0_V)
- ;
- ctp->cur_ptr = au1xxx_ddma_get_nextptr_virt(dp);
-#else
- while (count--)
- {
- au_writew(*(u16 *)addr, port);
- addr += 2;
- }
#endif
-}
-
-void auide_outsl(unsigned long port, void *addr, u32 count)
-{
- while (count--)
- {
- au_writel(*(u32 *)addr, port);
- /* NOTE: For IDE interfaces over PCMCIA,
- * 32-bit access does not work
- */
- addr += 4;
- }
-}
static void auide_tune_drive(ide_drive_t *drive, byte pio)
{
- int mem_sttime;
- int mem_stcfg;
- unsigned long flags;
- u8 speed;
-
- /* get the best pio mode for the drive */
- pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
-
- printk("%s: setting Au1XXX IDE to PIO mode%d\n",
- drive->name, pio);
-
- spin_lock_irqsave(&ide_tune_drive_spin_lock, flags);
-
- mem_sttime = 0;
- mem_stcfg = au_readl(MEM_STCFG2);
-
- /* set pio mode! */
- switch(pio) {
- case 0:
- /* set timing parameters for RCS2# */
- mem_sttime = SBC_IDE_PIO0_TWCS
- | SBC_IDE_PIO0_TCSH
- | SBC_IDE_PIO0_TCSOFF
- | SBC_IDE_PIO0_TWP
- | SBC_IDE_PIO0_TCSW
- | SBC_IDE_PIO0_TPM
- | SBC_IDE_PIO0_TA;
- /* set configuration for RCS2# */
- mem_stcfg |= TS_MASK;
- mem_stcfg &= ~TCSOE_MASK;
- mem_stcfg &= ~TOECS_MASK;
- mem_stcfg |= SBC_IDE_PIO0_TCSOE | SBC_IDE_PIO0_TOECS;
-
- au_writel(mem_sttime,MEM_STTIME2);
- au_writel(mem_stcfg,MEM_STCFG2);
- break;
-
- case 1:
- /* set timing parameters for RCS2# */
- mem_sttime = SBC_IDE_PIO1_TWCS
- | SBC_IDE_PIO1_TCSH
- | SBC_IDE_PIO1_TCSOFF
- | SBC_IDE_PIO1_TWP
- | SBC_IDE_PIO1_TCSW
- | SBC_IDE_PIO1_TPM
- | SBC_IDE_PIO1_TA;
- /* set configuration for RCS2# */
- mem_stcfg |= TS_MASK;
- mem_stcfg &= ~TCSOE_MASK;
- mem_stcfg &= ~TOECS_MASK;
- mem_stcfg |= SBC_IDE_PIO1_TCSOE | SBC_IDE_PIO1_TOECS;
- break;
-
- case 2:
- /* set timing parameters for RCS2# */
- mem_sttime = SBC_IDE_PIO2_TWCS
- | SBC_IDE_PIO2_TCSH
- | SBC_IDE_PIO2_TCSOFF
- | SBC_IDE_PIO2_TWP
- | SBC_IDE_PIO2_TCSW
- | SBC_IDE_PIO2_TPM
- | SBC_IDE_PIO2_TA;
- /* set configuration for RCS2# */
- mem_stcfg &= ~TS_MASK;
- mem_stcfg &= ~TCSOE_MASK;
- mem_stcfg &= ~TOECS_MASK;
- mem_stcfg |= SBC_IDE_PIO2_TCSOE | SBC_IDE_PIO2_TOECS;
- break;
-
- case 3:
- /* set timing parameters for RCS2# */
- mem_sttime = SBC_IDE_PIO3_TWCS
- | SBC_IDE_PIO3_TCSH
- | SBC_IDE_PIO3_TCSOFF
- | SBC_IDE_PIO3_TWP
- | SBC_IDE_PIO3_TCSW
- | SBC_IDE_PIO3_TPM
- | SBC_IDE_PIO3_TA;
- /* set configuration for RCS2# */
- mem_stcfg |= TS_MASK;
- mem_stcfg &= ~TS_MASK;
- mem_stcfg &= ~TCSOE_MASK;
- mem_stcfg &= ~TOECS_MASK;
- mem_stcfg |= SBC_IDE_PIO3_TCSOE | SBC_IDE_PIO3_TOECS;
-
- break;
-
- case 4:
- /* set timing parameters for RCS2# */
- mem_sttime = SBC_IDE_PIO4_TWCS
- | SBC_IDE_PIO4_TCSH
- | SBC_IDE_PIO4_TCSOFF
- | SBC_IDE_PIO4_TWP
- | SBC_IDE_PIO4_TCSW
- | SBC_IDE_PIO4_TPM
- | SBC_IDE_PIO4_TA;
- /* set configuration for RCS2# */
- mem_stcfg &= ~TS_MASK;
- mem_stcfg &= ~TCSOE_MASK;
- mem_stcfg &= ~TOECS_MASK;
- mem_stcfg |= SBC_IDE_PIO4_TCSOE | SBC_IDE_PIO4_TOECS;
- break;
- }
-
- au_writel(mem_sttime,MEM_STTIME2);
- au_writel(mem_stcfg,MEM_STCFG2);
-
- spin_unlock_irqrestore(&ide_tune_drive_spin_lock, flags);
-
- speed = pio + XFER_PIO_0;
- ide_config_drive_speed(drive, speed);
+ int mem_sttime;
+ int mem_stcfg;
+ u8 speed;
+
+ /* get the best pio mode for the drive */
+ pio = ide_get_best_pio_mode(drive, pio, 4, NULL);
+
+ printk(KERN_INFO "%s: setting Au1XXX IDE to PIO mode%d\n",
+ drive->name, pio);
+
+ mem_sttime = 0;
+ mem_stcfg = au_readl(MEM_STCFG2);
+
+ /* set pio mode! */
+ switch(pio) {
+ case 0:
+ mem_sttime = SBC_IDE_TIMING(PIO0);
+
+ /* set configuration for RCS2# */
+ mem_stcfg |= TS_MASK;
+ mem_stcfg &= ~TCSOE_MASK;
+ mem_stcfg &= ~TOECS_MASK;
+ mem_stcfg |= SBC_IDE_PIO0_TCSOE | SBC_IDE_PIO0_TOECS;
+ break;
+
+ case 1:
+ mem_sttime = SBC_IDE_TIMING(PIO1);
+
+ /* set configuration for RCS2# */
+ mem_stcfg |= TS_MASK;
+ mem_stcfg &= ~TCSOE_MASK;
+ mem_stcfg &= ~TOECS_MASK;
+ mem_stcfg |= SBC_IDE_PIO1_TCSOE | SBC_IDE_PIO1_TOECS;
+ break;
+
+ case 2:
+ mem_sttime = SBC_IDE_TIMING(PIO2);
+
+ /* set configuration for RCS2# */
+ mem_stcfg &= ~TS_MASK;
+ mem_stcfg &= ~TCSOE_MASK;
+ mem_stcfg &= ~TOECS_MASK;
+ mem_stcfg |= SBC_IDE_PIO2_TCSOE | SBC_IDE_PIO2_TOECS;
+ break;
+
+ case 3:
+ mem_sttime = SBC_IDE_TIMING(PIO3);
+
+ /* set configuration for RCS2# */
+ mem_stcfg &= ~TS_MASK;
+ mem_stcfg &= ~TCSOE_MASK;
+ mem_stcfg &= ~TOECS_MASK;
+ mem_stcfg |= SBC_IDE_PIO3_TCSOE | SBC_IDE_PIO3_TOECS;
+
+ break;
+
+ case 4:
+ mem_sttime = SBC_IDE_TIMING(PIO4);
+
+ /* set configuration for RCS2# */
+ mem_stcfg &= ~TS_MASK;
+ mem_stcfg &= ~TCSOE_MASK;
+ mem_stcfg &= ~TOECS_MASK;
+ mem_stcfg |= SBC_IDE_PIO4_TCSOE | SBC_IDE_PIO4_TOECS;
+ break;
+ }
+
+ au_writel(mem_sttime,MEM_STTIME2);
+ au_writel(mem_stcfg,MEM_STCFG2);
+
+ speed = pio + XFER_PIO_0;
+ ide_config_drive_speed(drive, speed);
}
static int auide_tune_chipset (ide_drive_t *drive, u8 speed)
{
- u8 mode = 0;
- int mem_sttime;
- int mem_stcfg;
- unsigned long flags;
+ int mem_sttime;
+ int mem_stcfg;
+ unsigned long mode;
+
#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
- struct hd_driveid *id = drive->id;
-
- /*
- * Now see what the current drive is capable of,
- * selecting UDMA only if the mate said it was ok.
- */
- if (id && (id->capability & 1) && drive->autodma &&
- !__ide_dma_bad_drive(drive)) {
- if (!mode && (id->field_valid & 2) && (id->dma_mword & 7)) {
- if (id->dma_mword & 4)
- mode = XFER_MW_DMA_2;
- else if (id->dma_mword & 2)
- mode = XFER_MW_DMA_1;
- else if (id->dma_mword & 1)
- mode = XFER_MW_DMA_0;
- }
- }
+ if (ide_use_dma(drive))
+ mode = ide_dma_speed(drive, 0);
#endif
- spin_lock_irqsave(&ide_tune_chipset_spin_lock, flags);
+ mem_sttime = 0;
+ mem_stcfg = au_readl(MEM_STCFG2);
- mem_sttime = 0;
- mem_stcfg = au_readl(MEM_STCFG2);
-
- switch(speed) {
- case XFER_PIO_4:
- case XFER_PIO_3:
- case XFER_PIO_2:
- case XFER_PIO_1:
- case XFER_PIO_0:
- auide_tune_drive(drive, (speed - XFER_PIO_0));
- break;
+ if (speed >= XFER_PIO_0 && speed <= XFER_PIO_4) {
+ auide_tune_drive(drive, speed - XFER_PIO_0);
+ return 0;
+ }
+
+ switch(speed) {
#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
- case XFER_MW_DMA_2:
- /* set timing parameters for RCS2# */
- mem_sttime = SBC_IDE_MDMA2_TWCS
- | SBC_IDE_MDMA2_TCSH
- | SBC_IDE_MDMA2_TCSOFF
- | SBC_IDE_MDMA2_TWP
- | SBC_IDE_MDMA2_TCSW
- | SBC_IDE_MDMA2_TPM
- | SBC_IDE_MDMA2_TA;
- /* set configuration for RCS2# */
- mem_stcfg &= ~TS_MASK;
- mem_stcfg &= ~TCSOE_MASK;
- mem_stcfg &= ~TOECS_MASK;
- mem_stcfg |= SBC_IDE_MDMA2_TCSOE | SBC_IDE_MDMA2_TOECS;
-
- mode = XFER_MW_DMA_2;
- break;
- case XFER_MW_DMA_1:
- /* set timing parameters for RCS2# */
- mem_sttime = SBC_IDE_MDMA1_TWCS
- | SBC_IDE_MDMA1_TCSH
- | SBC_IDE_MDMA1_TCSOFF
- | SBC_IDE_MDMA1_TWP
- | SBC_IDE_MDMA1_TCSW
- | SBC_IDE_MDMA1_TPM
- | SBC_IDE_MDMA1_TA;
- /* set configuration for RCS2# */
- mem_stcfg &= ~TS_MASK;
- mem_stcfg &= ~TCSOE_MASK;
- mem_stcfg &= ~TOECS_MASK;
- mem_stcfg |= SBC_IDE_MDMA1_TCSOE | SBC_IDE_MDMA1_TOECS;
-
- mode = XFER_MW_DMA_1;
- break;
- case XFER_MW_DMA_0:
- /* set timing parameters for RCS2# */
- mem_sttime = SBC_IDE_MDMA0_TWCS
- | SBC_IDE_MDMA0_TCSH
- | SBC_IDE_MDMA0_TCSOFF
- | SBC_IDE_MDMA0_TWP
- | SBC_IDE_MDMA0_TCSW
- | SBC_IDE_MDMA0_TPM
- | SBC_IDE_MDMA0_TA;
- /* set configuration for RCS2# */
- mem_stcfg |= TS_MASK;
- mem_stcfg &= ~TCSOE_MASK;
- mem_stcfg &= ~TOECS_MASK;
- mem_stcfg |= SBC_IDE_MDMA0_TCSOE | SBC_IDE_MDMA0_TOECS;
-
- mode = XFER_MW_DMA_0;
- break;
+ case XFER_MW_DMA_2:
+ mem_sttime = SBC_IDE_TIMING(MDMA2);
+
+ /* set configuration for RCS2# */
+ mem_stcfg &= ~TS_MASK;
+ mem_stcfg &= ~TCSOE_MASK;
+ mem_stcfg &= ~TOECS_MASK;
+ mem_stcfg |= SBC_IDE_MDMA2_TCSOE | SBC_IDE_MDMA2_TOECS;
+
+ mode = XFER_MW_DMA_2;
+ break;
+ case XFER_MW_DMA_1:
+ mem_sttime = SBC_IDE_TIMING(MDMA1);
+
+ /* set configuration for RCS2# */
+ mem_stcfg &= ~TS_MASK;
+ mem_stcfg &= ~TCSOE_MASK;
+ mem_stcfg &= ~TOECS_MASK;
+ mem_stcfg |= SBC_IDE_MDMA1_TCSOE | SBC_IDE_MDMA1_TOECS;
+
+ mode = XFER_MW_DMA_1;
+ break;
+ case XFER_MW_DMA_0:
+ mem_sttime = SBC_IDE_TIMING(MDMA0);
+
+ /* set configuration for RCS2# */
+ mem_stcfg |= TS_MASK;
+ mem_stcfg &= ~TCSOE_MASK;
+ mem_stcfg &= ~TOECS_MASK;
+ mem_stcfg |= SBC_IDE_MDMA0_TCSOE | SBC_IDE_MDMA0_TOECS;
+
+ mode = XFER_MW_DMA_0;
+ break;
#endif
- default:
- return 1;
- }
-
- /*
- * Tell the drive to switch to the new mode; abort on failure.
- */
- if (!mode || ide_config_drive_speed(drive, mode))
- {
- return 1; /* failure */
- }
-
-
- au_writel(mem_sttime,MEM_STTIME2);
- au_writel(mem_stcfg,MEM_STCFG2);
+ default:
+ return 1;
+ }
+
+ if (ide_config_drive_speed(drive, mode))
+ return 1;
- spin_unlock_irqrestore(&ide_tune_chipset_spin_lock, flags);
+ au_writel(mem_sttime,MEM_STTIME2);
+ au_writel(mem_stcfg,MEM_STCFG2);
- return 0;
+ return 0;
}
/*
* Multi-Word DMA + DbDMA functions
*/
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
-static int in_drive_list(struct hd_driveid *id,
- const struct drive_list_entry *drive_table)
-{
- for ( ; drive_table->id_model ; drive_table++){
- if ((!strcmp(drive_table->id_model, id->model)) &&
- ((strstr(drive_table->id_firmware, id->fw_rev)) ||
- (!strcmp(drive_table->id_firmware, "ALL")))
- )
- return 1;
- }
- return 0;
-}
+#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
static int auide_build_sglist(ide_drive_t *drive, struct request *rq)
{
- ide_hwif_t *hwif = drive->hwif;
- _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
- struct scatterlist *sg = hwif->sg_table;
+ ide_hwif_t *hwif = drive->hwif;
+ _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
+ struct scatterlist *sg = hwif->sg_table;
- ide_map_sg(drive, rq);
+ ide_map_sg(drive, rq);
- if (rq_data_dir(rq) == READ)
- hwif->sg_dma_direction = DMA_FROM_DEVICE;
- else
- hwif->sg_dma_direction = DMA_TO_DEVICE;
+ if (rq_data_dir(rq) == READ)
+ hwif->sg_dma_direction = DMA_FROM_DEVICE;
+ else
+ hwif->sg_dma_direction = DMA_TO_DEVICE;
- return dma_map_sg(ahwif->dev, sg, hwif->sg_nents,
- hwif->sg_dma_direction);
+ return dma_map_sg(ahwif->dev, sg, hwif->sg_nents,
+ hwif->sg_dma_direction);
}
static int auide_build_dmatable(ide_drive_t *drive)
{
- int i, iswrite, count = 0;
- ide_hwif_t *hwif = HWIF(drive);
-
- struct request *rq = HWGROUP(drive)->rq;
-
- _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
- struct scatterlist *sg;
-
- iswrite = (rq_data_dir(rq) == WRITE);
- /* Save for interrupt context */
- ahwif->drive = drive;
-
- /* Build sglist */
- hwif->sg_nents = i = auide_build_sglist(drive, rq);
-
- if (!i)
- return 0;
-
- /* fill the descriptors */
- 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);
-
- while (cur_len) {
- u32 flags = DDMA_FLAGS_NOIE;
- unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00;
-
- if (++count >= PRD_ENTRIES) {
- printk(KERN_WARNING "%s: DMA table too small\n",
- drive->name);
- goto use_pio_instead;
- }
-
- /* Lets enable intr for the last descriptor only */
- if (1==i)
- flags = DDMA_FLAGS_IE;
- else
- flags = DDMA_FLAGS_NOIE;
-
- if (iswrite) {
- if(!put_source_flags(ahwif->tx_chan,
- (void*)(page_address(sg->page)
- + sg->offset),
- tc, flags)) {
- printk(KERN_ERR "%s failed %d\n",
- __FUNCTION__, __LINE__);
+ int i, iswrite, count = 0;
+ ide_hwif_t *hwif = HWIF(drive);
+
+ struct request *rq = HWGROUP(drive)->rq;
+
+ _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
+ struct scatterlist *sg;
+
+ iswrite = (rq_data_dir(rq) == WRITE);
+ /* Save for interrupt context */
+ ahwif->drive = drive;
+
+ /* Build sglist */
+ hwif->sg_nents = i = auide_build_sglist(drive, rq);
+
+ if (!i)
+ return 0;
+
+ /* fill the descriptors */
+ 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);
+
+ while (cur_len) {
+ u32 flags = DDMA_FLAGS_NOIE;
+ unsigned int tc = (cur_len < 0xfe00)? cur_len: 0xfe00;
+
+ if (++count >= PRD_ENTRIES) {
+ printk(KERN_WARNING "%s: DMA table too small\n",
+ drive->name);
+ goto use_pio_instead;
+ }
+
+ /* Lets enable intr for the last descriptor only */
+ if (1==i)
+ flags = DDMA_FLAGS_IE;
+ else
+ flags = DDMA_FLAGS_NOIE;
+
+ if (iswrite) {
+ if(!put_source_flags(ahwif->tx_chan,
+ (void*)(page_address(sg->page)
+ + sg->offset),
+ tc, flags)) {
+ printk(KERN_ERR "%s failed %d\n",
+ __FUNCTION__, __LINE__);
}
- } else
+ } else
{
- if(!put_dest_flags(ahwif->rx_chan,
- (void*)(page_address(sg->page)
- + sg->offset),
- tc, flags)) {
- printk(KERN_ERR "%s failed %d\n",
- __FUNCTION__, __LINE__);
+ if(!put_dest_flags(ahwif->rx_chan,
+ (void*)(page_address(sg->page)
+ + sg->offset),
+ tc, flags)) {
+ printk(KERN_ERR "%s failed %d\n",
+ __FUNCTION__, __LINE__);
}
- }
+ }
- cur_addr += tc;
- cur_len -= tc;
- }
- sg++;
- i--;
- }
+ cur_addr += tc;
+ cur_len -= tc;
+ }
+ sg++;
+ i--;
+ }
- if (count)
- return 1;
+ if (count)
+ return 1;
-use_pio_instead:
- dma_unmap_sg(ahwif->dev,
- hwif->sg_table,
- hwif->sg_nents,
- hwif->sg_dma_direction);
+ use_pio_instead:
+ dma_unmap_sg(ahwif->dev,
+ hwif->sg_table,
+ hwif->sg_nents,
+ hwif->sg_dma_direction);
- return 0; /* revert to PIO for this request */
+ return 0; /* revert to PIO for this request */
}
static int auide_dma_end(ide_drive_t *drive)
{
- ide_hwif_t *hwif = HWIF(drive);
- _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
+ ide_hwif_t *hwif = HWIF(drive);
+ _auide_hwif *ahwif = (_auide_hwif*)hwif->hwif_data;
- if (hwif->sg_nents) {
- dma_unmap_sg(ahwif->dev, hwif->sg_table, hwif->sg_nents,
- hwif->sg_dma_direction);
- hwif->sg_nents = 0;
- }
+ if (hwif->sg_nents) {
+ dma_unmap_sg(ahwif->dev, hwif->sg_table, hwif->sg_nents,
+ hwif->sg_dma_direction);
+ hwif->sg_nents = 0;
+ }
- return 0;
+ return 0;
}
static void auide_dma_start(ide_drive_t *drive )
{
-// printk("%s\n", __FUNCTION__);
}
-ide_startstop_t auide_dma_intr(ide_drive_t *drive)
-{
- //printk("%s\n", __FUNCTION__);
-
- u8 stat = 0, dma_stat = 0;
-
- dma_stat = HWIF(drive)->ide_dma_end(drive);
- stat = HWIF(drive)->INB(IDE_STATUS_REG); /* get drive status */
- if (OK_STAT(stat,DRIVE_READY,drive->bad_wstat|DRQ_STAT)) {
- if (!dma_stat) {
- struct request *rq = HWGROUP(drive)->rq;
-
- ide_end_request(drive, 1, rq->nr_sectors);
- return ide_stopped;
- }
- printk(KERN_ERR "%s: dma_intr: bad DMA status (dma_stat=%x)\n",
- drive->name, dma_stat);
- }
- return ide_error(drive, "dma_intr", stat);
-}
static void auide_dma_exec_cmd(ide_drive_t *drive, u8 command)
{
- //printk("%s\n", __FUNCTION__);
-
- /* issue cmd to drive */
- ide_execute_command(drive, command, &auide_dma_intr,
- (2*WAIT_CMD), NULL);
+ /* issue cmd to drive */
+ ide_execute_command(drive, command, &ide_dma_intr,
+ (2*WAIT_CMD), NULL);
}
static int auide_dma_setup(ide_drive_t *drive)
-{
-// printk("%s\n", __FUNCTION__);
-
- if (drive->media != ide_disk)
- return 1;
-
- if (!auide_build_dmatable(drive))
- /* try PIO instead of DMA */
- return 1;
+{
+ struct request *rq = HWGROUP(drive)->rq;
- drive->waiting_for_dma = 1;
+ if (!auide_build_dmatable(drive)) {
+ ide_map_sg(drive, rq);
+ return 1;
+ }
- return 0;
+ drive->waiting_for_dma = 1;
+ return 0;
}
static int auide_dma_check(ide_drive_t *drive)
{
-// printk("%s\n", __FUNCTION__);
+ u8 speed;
#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
- if( !dbdma_init_done ){
- auide_hwif.white_list = in_drive_list(drive->id,
- dma_white_list);
- auide_hwif.black_list = in_drive_list(drive->id,
- dma_black_list);
- auide_hwif.drive = drive;
- auide_ddma_init(&auide_hwif);
- dbdma_init_done = 1;
- }
+
+ if( dbdma_init_done == 0 ){
+ auide_hwif.white_list = ide_in_drive_list(drive->id,
+ dma_white_list);
+ auide_hwif.black_list = ide_in_drive_list(drive->id,
+ dma_black_list);
+ auide_hwif.drive = drive;
+ auide_ddma_init(&auide_hwif);
+ dbdma_init_done = 1;
+ }
#endif
- /* Is the drive in our DMA black list? */
- if ( auide_hwif.black_list ) {
- drive->using_dma = 0;
- printk("%s found in dma_blacklist[]! Disabling DMA.\n",
- drive->id->model);
- }
- else
- drive->using_dma = 1;
+ /* Is the drive in our DMA black list? */
+
+ if ( auide_hwif.black_list ) {
+ drive->using_dma = 0;
+
+ /* Borrowed the warning message from ide-dma.c */
- return HWIF(drive)->ide_dma_host_on(drive);
+ printk(KERN_WARNING "%s: Disabling DMA for %s (blacklisted)\n",
+ drive->name, drive->id->model);
+ }
+ else
+ drive->using_dma = 1;
+
+ speed = ide_find_best_mode(drive, XFER_PIO | XFER_MWDMA);
+
+ if (drive->autodma && (speed & XFER_MODE) != XFER_PIO)
+ return HWIF(drive)->ide_dma_on(drive);
+
+ return HWIF(drive)->ide_dma_off_quietly(drive);
}
static int auide_dma_test_irq(ide_drive_t *drive)
-{
-// printk("%s\n", __FUNCTION__);
-
- if (!drive->waiting_for_dma)
- printk(KERN_WARNING "%s: ide_dma_test_irq \
+{
+ if (drive->waiting_for_dma == 0)
+ printk(KERN_WARNING "%s: ide_dma_test_irq \
called while not waiting\n", drive->name);
- /* If dbdma didn't execute the STOP command yet, the
- * active bit is still set
+ /* If dbdma didn't execute the STOP command yet, the
+ * active bit is still set
*/
- drive->waiting_for_dma++;
- if (drive->waiting_for_dma >= DMA_WAIT_TIMEOUT) {
- printk(KERN_WARNING "%s: timeout waiting for ddma to \
+ drive->waiting_for_dma++;
+ if (drive->waiting_for_dma >= DMA_WAIT_TIMEOUT) {
+ printk(KERN_WARNING "%s: timeout waiting for ddma to \
complete\n", drive->name);
- return 1;
- }
- udelay(10);
- return 0;
+ return 1;
+ }
+ udelay(10);
+ return 0;
}
static int auide_dma_host_on(ide_drive_t *drive)
{
-// printk("%s\n", __FUNCTION__);
- return 0;
+ return 0;
}
static int auide_dma_on(ide_drive_t *drive)
{
-// printk("%s\n", __FUNCTION__);
- drive->using_dma = 1;
- return auide_dma_host_on(drive);
+ drive->using_dma = 1;
+ return auide_dma_host_on(drive);
}
static int auide_dma_host_off(ide_drive_t *drive)
{
-// printk("%s\n", __FUNCTION__);
- return 0;
+ return 0;
}
static int auide_dma_off_quietly(ide_drive_t *drive)
{
-// printk("%s\n", __FUNCTION__);
- drive->using_dma = 0;
- return auide_dma_host_off(drive);
+ drive->using_dma = 0;
+ return auide_dma_host_off(drive);
}
static int auide_dma_lostirq(ide_drive_t *drive)
{
-// printk("%s\n", __FUNCTION__);
-
- printk(KERN_ERR "%s: IRQ lost\n", drive->name);
- return 0;
+ printk(KERN_ERR "%s: IRQ lost\n", drive->name);
+ return 0;
}
static void auide_ddma_tx_callback(int irq, void *param, struct pt_regs *regs)
{
-// printk("%s\n", __FUNCTION__);
-
- _auide_hwif *ahwif = (_auide_hwif*)param;
- ahwif->drive->waiting_for_dma = 0;
- return;
+ _auide_hwif *ahwif = (_auide_hwif*)param;
+ ahwif->drive->waiting_for_dma = 0;
}
static void auide_ddma_rx_callback(int irq, void *param, struct pt_regs *regs)
{
-// printk("%s\n", __FUNCTION__);
+ _auide_hwif *ahwif = (_auide_hwif*)param;
+ ahwif->drive->waiting_for_dma = 0;
+}
+
+#endif /* end CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */
- _auide_hwif *ahwif = (_auide_hwif*)param;
- ahwif->drive->waiting_for_dma = 0;
- return;
+static void auide_init_dbdma_dev(dbdev_tab_t *dev, u32 dev_id, u32 tsize, u32 devwidth, u32 flags)
+{
+ dev->dev_id = dev_id;
+ dev->dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR;
+ dev->dev_intlevel = 0;
+ dev->dev_intpolarity = 0;
+ dev->dev_tsize = tsize;
+ dev->dev_devwidth = devwidth;
+ dev->dev_flags = flags;
}
+
+#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA)
static int auide_dma_timeout(ide_drive_t *drive)
{
// printk("%s\n", __FUNCTION__);
- printk(KERN_ERR "%s: DMA timeout occurred: ", drive->name);
+ printk(KERN_ERR "%s: DMA timeout occurred: ", drive->name);
- if (HWIF(drive)->ide_dma_test_irq(drive))
- return 0;
+ if (HWIF(drive)->ide_dma_test_irq(drive))
+ return 0;
- return HWIF(drive)->ide_dma_end(drive);
+ return HWIF(drive)->ide_dma_end(drive);
}
-#endif /* end CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */
+
+static int auide_ddma_init(_auide_hwif *auide) {
+
+ dbdev_tab_t source_dev_tab, target_dev_tab;
+ u32 dev_id, tsize, devwidth, flags;
+ ide_hwif_t *hwif = auide->hwif;
-static int auide_ddma_init( _auide_hwif *auide )
-{
-// printk("%s\n", __FUNCTION__);
+ dev_id = AU1XXX_ATA_DDMA_REQ;
- dbdev_tab_t source_dev_tab;
-#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA)
- dbdev_tab_t target_dev_tab;
- ide_hwif_t *hwif = auide->hwif;
- char warning_output [2][80];
- int i;
-#endif
+ if (auide->white_list || auide->black_list) {
+ tsize = 8;
+ devwidth = 32;
+ }
+ else {
+ tsize = 1;
+ devwidth = 16;
+
+ printk(KERN_ERR "au1xxx-ide: %s is not on ide driver whitelist.\n",auide_hwif.drive->id->model);
+ printk(KERN_ERR " please read 'Documentation/mips/AU1xxx_IDE.README'");
+ }
- /* Add our custom device to DDMA device table */
- /* Create our new device entries in the table */
-#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA)
- source_dev_tab.dev_id = AU1XXX_ATA_DDMA_REQ;
-
- if( auide->white_list || auide->black_list ){
- source_dev_tab.dev_tsize = 8;
- source_dev_tab.dev_devwidth = 32;
- source_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR;
- source_dev_tab.dev_intlevel = 0;
- source_dev_tab.dev_intpolarity = 0;
-
- /* init device table for target - static bus controller - */
- target_dev_tab.dev_id = DSCR_CMD0_ALWAYS;
- target_dev_tab.dev_tsize = 8;
- target_dev_tab.dev_devwidth = 32;
- target_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR;
- target_dev_tab.dev_intlevel = 0;
- target_dev_tab.dev_intpolarity = 0;
- target_dev_tab.dev_flags = DEV_FLAGS_ANYUSE;
- }
- else{
- source_dev_tab.dev_tsize = 1;
- source_dev_tab.dev_devwidth = 16;
- source_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR;
- source_dev_tab.dev_intlevel = 0;
- source_dev_tab.dev_intpolarity = 0;
-
- /* init device table for target - static bus controller - */
- target_dev_tab.dev_id = DSCR_CMD0_ALWAYS;
- target_dev_tab.dev_tsize = 1;
- target_dev_tab.dev_devwidth = 16;
- target_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR;
- target_dev_tab.dev_intlevel = 0;
- target_dev_tab.dev_intpolarity = 0;
- target_dev_tab.dev_flags = DEV_FLAGS_ANYUSE;
-
- sprintf(&warning_output[0][0],
- "%s is not on ide driver white list.",
- auide_hwif.drive->id->model);
- for ( i=strlen(&warning_output[0][0]) ; i<76; i++ ){
- sprintf(&warning_output[0][i]," ");
- }
-
- sprintf(&warning_output[1][0],
- "To add %s please read 'Documentation/mips/AU1xxx_IDE.README'.",
- auide_hwif.drive->id->model);
- for ( i=strlen(&warning_output[1][0]) ; i<76; i++ ){
- sprintf(&warning_output[1][i]," ");
- }
-
- printk("\n****************************************");
- printk("****************************************\n");
- printk("* %s *\n",&warning_output[0][0]);
- printk("* Switch to safe MWDMA Mode! ");
- printk(" *\n");
- printk("* %s *\n",&warning_output[1][0]);
- printk("****************************************");
- printk("****************************************\n\n");
- }
+#ifdef IDE_AU1XXX_BURSTMODE
+ flags = DEV_FLAGS_SYNC | DEV_FLAGS_BURSTABLE;
#else
- source_dev_tab.dev_id = DSCR_CMD0_ALWAYS;
- source_dev_tab.dev_tsize = 8;
- source_dev_tab.dev_devwidth = 32;
- source_dev_tab.dev_physaddr = (u32)AU1XXX_ATA_PHYS_ADDR;
- source_dev_tab.dev_intlevel = 0;
- source_dev_tab.dev_intpolarity = 0;
+ flags = DEV_FLAGS_SYNC;
#endif
-#if CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON
- /* set flags for tx channel */
- source_dev_tab.dev_flags = DEV_FLAGS_OUT
- | DEV_FLAGS_SYNC
- | DEV_FLAGS_BURSTABLE;
- auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
- /* set flags for rx channel */
- source_dev_tab.dev_flags = DEV_FLAGS_IN
- | DEV_FLAGS_SYNC
- | DEV_FLAGS_BURSTABLE;
- auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
+ /* setup dev_tab for tx channel */
+ auide_init_dbdma_dev( &source_dev_tab,
+ dev_id,
+ tsize, devwidth, DEV_FLAGS_OUT | flags);
+ auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
+
+ auide_init_dbdma_dev( &source_dev_tab,
+ dev_id,
+ tsize, devwidth, DEV_FLAGS_IN | flags);
+ auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
+
+ /* We also need to add a target device for the DMA */
+ auide_init_dbdma_dev( &target_dev_tab,
+ (u32)DSCR_CMD0_ALWAYS,
+ tsize, devwidth, DEV_FLAGS_ANYUSE);
+ auide->target_dev_id = au1xxx_ddma_add_device(&target_dev_tab);
+
+ /* Get a channel for TX */
+ auide->tx_chan = au1xxx_dbdma_chan_alloc(auide->target_dev_id,
+ auide->tx_dev_id,
+ auide_ddma_tx_callback,
+ (void*)auide);
+
+ /* Get a channel for RX */
+ auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id,
+ auide->target_dev_id,
+ auide_ddma_rx_callback,
+ (void*)auide);
+
+ auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan,
+ NUM_DESCRIPTORS);
+ auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan,
+ NUM_DESCRIPTORS);
+
+ hwif->dmatable_cpu = dma_alloc_coherent(auide->dev,
+ PRD_ENTRIES * PRD_BYTES, /* 1 Page */
+ &hwif->dmatable_dma, GFP_KERNEL);
+
+ au1xxx_dbdma_start( auide->tx_chan );
+ au1xxx_dbdma_start( auide->rx_chan );
+
+ return 0;
+}
#else
- /* set flags for tx channel */
- source_dev_tab.dev_flags = DEV_FLAGS_OUT | DEV_FLAGS_SYNC;
- auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
- /* set flags for rx channel */
- source_dev_tab.dev_flags = DEV_FLAGS_IN | DEV_FLAGS_SYNC;
- auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
-#endif
+
+static int auide_ddma_init( _auide_hwif *auide )
+{
+ dbdev_tab_t source_dev_tab;
+ int flags;
-#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA)
-
- auide->target_dev_id = au1xxx_ddma_add_device(&target_dev_tab);
-
- /* Get a channel for TX */
- auide->tx_chan = au1xxx_dbdma_chan_alloc(auide->target_dev_id,
- auide->tx_dev_id,
- auide_ddma_tx_callback,
- (void*)auide);
- /* Get a channel for RX */
- auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id,
- auide->target_dev_id,
- auide_ddma_rx_callback,
- (void*)auide);
-#else /* CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA */
- /*
- * Note: if call back is not enabled, update ctp->cur_ptr manually
- */
- auide->tx_chan = au1xxx_dbdma_chan_alloc(DSCR_CMD0_ALWAYS,
- auide->tx_dev_id,
- NULL,
- (void*)auide);
- auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id,
- DSCR_CMD0_ALWAYS,
- NULL,
- (void*)auide);
+#ifdef IDE_AU1XXX_BURSTMODE
+ flags = DEV_FLAGS_SYNC | DEV_FLAGS_BURSTABLE;
+#else
+ flags = DEV_FLAGS_SYNC;
#endif
- auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan,
- NUM_DESCRIPTORS);
- auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan,
- NUM_DESCRIPTORS);
-#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA)
- hwif->dmatable_cpu = dma_alloc_coherent(auide->dev,
- PRD_ENTRIES * PRD_BYTES, /* 1 Page */
- &hwif->dmatable_dma, GFP_KERNEL);
-
- auide->sg_table = kmalloc(sizeof(struct scatterlist) * PRD_ENTRIES,
- GFP_KERNEL|GFP_DMA);
- if (auide->sg_table == NULL) {
- return -ENOMEM;
- }
-#endif
- au1xxx_dbdma_start( auide->tx_chan );
- au1xxx_dbdma_start( auide->rx_chan );
- return 0;
+ /* setup dev_tab for tx channel */
+ auide_init_dbdma_dev( &source_dev_tab,
+ (u32)DSCR_CMD0_ALWAYS,
+ 8, 32, DEV_FLAGS_OUT | flags);
+ auide->tx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
+
+ auide_init_dbdma_dev( &source_dev_tab,
+ (u32)DSCR_CMD0_ALWAYS,
+ 8, 32, DEV_FLAGS_IN | flags);
+ auide->rx_dev_id = au1xxx_ddma_add_device( &source_dev_tab );
+
+ /* Get a channel for TX */
+ auide->tx_chan = au1xxx_dbdma_chan_alloc(DSCR_CMD0_ALWAYS,
+ auide->tx_dev_id,
+ NULL,
+ (void*)auide);
+
+ /* Get a channel for RX */
+ auide->rx_chan = au1xxx_dbdma_chan_alloc(auide->rx_dev_id,
+ DSCR_CMD0_ALWAYS,
+ NULL,
+ (void*)auide);
+
+ auide->tx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->tx_chan,
+ NUM_DESCRIPTORS);
+ auide->rx_desc_head = (void*)au1xxx_dbdma_ring_alloc(auide->rx_chan,
+ NUM_DESCRIPTORS);
+
+ au1xxx_dbdma_start( auide->tx_chan );
+ au1xxx_dbdma_start( auide->rx_chan );
+
+ return 0;
}
+#endif
static void auide_setup_ports(hw_regs_t *hw, _auide_hwif *ahwif)
{
- int i;
-#define ide_ioreg_t unsigned long
- ide_ioreg_t *ata_regs = hw->io_ports;
-
- /* fixme */
- for (i = 0; i < IDE_CONTROL_OFFSET; i++) {
- *ata_regs++ = (ide_ioreg_t) ahwif->regbase
- + (ide_ioreg_t)(i << AU1XXX_ATA_REG_OFFSET);
- }
-
- /* set the Alternative Status register */
- *ata_regs = (ide_ioreg_t) ahwif->regbase
- + (ide_ioreg_t)(14 << AU1XXX_ATA_REG_OFFSET);
+ int i;
+ unsigned long *ata_regs = hw->io_ports;
+
+ /* FIXME? */
+ for (i = 0; i < IDE_CONTROL_OFFSET; i++) {
+ *ata_regs++ = ahwif->regbase + (i << AU1XXX_ATA_REG_OFFSET);
+ }
+
+ /* set the Alternative Status register */
+ *ata_regs = ahwif->regbase + (14 << AU1XXX_ATA_REG_OFFSET);
}
static int au_ide_probe(struct device *dev)
{
struct platform_device *pdev = to_platform_device(dev);
- _auide_hwif *ahwif = &auide_hwif;
- ide_hwif_t *hwif;
+ _auide_hwif *ahwif = &auide_hwif;
+ ide_hwif_t *hwif;
struct resource *res;
int ret = 0;
#if defined(CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA)
- char *mode = "MWDMA2";
+ char *mode = "MWDMA2";
#elif defined(CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA)
- char *mode = "PIO+DDMA(offload)";
+ char *mode = "PIO+DDMA(offload)";
#endif
- memset(&auide_hwif, 0, sizeof(_auide_hwif));
- auide_hwif.dev = 0;
+ memset(&auide_hwif, 0, sizeof(_auide_hwif));
+ auide_hwif.dev = 0;
ahwif->dev = dev;
ahwif->irq = platform_get_irq(pdev, 0);
@@ -902,11 +675,11 @@ static int au_ide_probe(struct device *dev)
goto out;
}
- if (!request_mem_region (res->start, res->end-res->start, pdev->name)) {
+ if (!request_mem_region (res->start, res->end-res->start, pdev->name)) {
pr_debug("%s: request_mem_region failed\n", DRV_NAME);
- ret = -EBUSY;
+ ret = -EBUSY;
goto out;
- }
+ }
ahwif->regbase = (u32)ioremap(res->start, res->end-res->start);
if (ahwif->regbase == 0) {
@@ -914,130 +687,92 @@ static int au_ide_probe(struct device *dev)
goto out;
}
- hwif = &ide_hwifs[pdev->id];
+ /* FIXME: This might possibly break PCMCIA IDE devices */
+
+ hwif = &ide_hwifs[pdev->id];
hw_regs_t *hw = &hwif->hw;
- hwif->irq = hw->irq = ahwif->irq;
- hwif->chipset = ide_au1xxx;
+ hwif->irq = hw->irq = ahwif->irq;
+ hwif->chipset = ide_au1xxx;
- auide_setup_ports(hw, ahwif);
+ auide_setup_ports(hw, ahwif);
memcpy(hwif->io_ports, hw->io_ports, sizeof(hwif->io_ports));
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ
- hwif->rqsize = CONFIG_BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ;
- hwif->rqsize = ((hwif->rqsize > AU1XXX_ATA_RQSIZE)
- || (hwif->rqsize < 32)) ? AU1XXX_ATA_RQSIZE : hwif->rqsize;
-#else /* if kernel config is not set */
- hwif->rqsize = AU1XXX_ATA_RQSIZE;
-#endif
-
- hwif->ultra_mask = 0x0; /* Disable Ultra DMA */
+ hwif->ultra_mask = 0x0; /* Disable Ultra DMA */
#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
- hwif->mwdma_mask = 0x07; /* Multimode-2 DMA */
- hwif->swdma_mask = 0x07;
+ hwif->mwdma_mask = 0x07; /* Multimode-2 DMA */
+ hwif->swdma_mask = 0x00;
#else
- hwif->mwdma_mask = 0x0;
- hwif->swdma_mask = 0x0;
+ hwif->mwdma_mask = 0x0;
+ hwif->swdma_mask = 0x0;
+#endif
+
+ hwif->noprobe = 0;
+ hwif->drives[0].unmask = 1;
+ hwif->drives[1].unmask = 1;
+
+ /* hold should be on in all cases */
+ hwif->hold = 1;
+ hwif->mmio = 2;
+
+ /* If the user has selected DDMA assisted copies,
+ then set up a few local I/O function entry points
+ */
+
+#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
+ hwif->INSW = auide_insw;
+ hwif->OUTSW = auide_outsw;
#endif
- //hwif->noprobe = !hwif->io_ports[IDE_DATA_OFFSET];
- hwif->noprobe = 0;
- hwif->drives[0].unmask = 1;
- hwif->drives[1].unmask = 1;
-
- /* hold should be on in all cases */
- hwif->hold = 1;
- hwif->mmio = 2;
-
- /* set up local I/O function entry points */
- hwif->INB = auide_inb;
- hwif->INW = auide_inw;
- hwif->INL = auide_inl;
- hwif->INSW = auide_insw;
- hwif->INSL = auide_insl;
- hwif->OUTB = auide_outb;
- hwif->OUTBSYNC = auide_outbsync;
- hwif->OUTW = auide_outw;
- hwif->OUTL = auide_outl;
- hwif->OUTSW = auide_outsw;
- hwif->OUTSL = auide_outsl;
-
- hwif->tuneproc = &auide_tune_drive;
- hwif->speedproc = &auide_tune_chipset;
+
+ hwif->tuneproc = &auide_tune_drive;
+ hwif->speedproc = &auide_tune_chipset;
#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
- hwif->ide_dma_off_quietly = &auide_dma_off_quietly;
- hwif->ide_dma_timeout = &auide_dma_timeout;
-
- hwif->ide_dma_check = &auide_dma_check;
- hwif->dma_exec_cmd = &auide_dma_exec_cmd;
- hwif->dma_start = &auide_dma_start;
- hwif->ide_dma_end = &auide_dma_end;
- hwif->dma_setup = &auide_dma_setup;
- hwif->ide_dma_test_irq = &auide_dma_test_irq;
- hwif->ide_dma_host_off = &auide_dma_host_off;
- hwif->ide_dma_host_on = &auide_dma_host_on;
- hwif->ide_dma_lostirq = &auide_dma_lostirq;
- hwif->ide_dma_on = &auide_dma_on;
-
- hwif->autodma = 1;
- hwif->drives[0].autodma = hwif->autodma;
- hwif->drives[1].autodma = hwif->autodma;
- hwif->atapi_dma = 1;
- hwif->drives[0].using_dma = 1;
- hwif->drives[1].using_dma = 1;
+ hwif->ide_dma_off_quietly = &auide_dma_off_quietly;
+ hwif->ide_dma_timeout = &auide_dma_timeout;
+
+ hwif->ide_dma_check = &auide_dma_check;
+ hwif->dma_exec_cmd = &auide_dma_exec_cmd;
+ hwif->dma_start = &auide_dma_start;
+ hwif->ide_dma_end = &auide_dma_end;
+ hwif->dma_setup = &auide_dma_setup;
+ hwif->ide_dma_test_irq = &auide_dma_test_irq;
+ hwif->ide_dma_host_off = &auide_dma_host_off;
+ hwif->ide_dma_host_on = &auide_dma_host_on;
+ hwif->ide_dma_lostirq = &auide_dma_lostirq;
+ hwif->ide_dma_on = &auide_dma_on;
+
+ hwif->autodma = 1;
+ hwif->drives[0].autodma = hwif->autodma;
+ hwif->drives[1].autodma = hwif->autodma;
+ hwif->atapi_dma = 1;
+
#else /* !CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA */
- hwif->autodma = 0;
- hwif->channel = 0;
- hwif->hold = 1;
- hwif->select_data = 0; /* no chipset-specific code */
- hwif->config_data = 0; /* no chipset-specific code */
-
- hwif->drives[0].autodma = 0;
- hwif->drives[0].drive_data = 0; /* no drive data */
- hwif->drives[0].using_dma = 0;
- hwif->drives[0].waiting_for_dma = 0;
- hwif->drives[0].autotune = 1; /* 1=autotune, 2=noautotune, 0=default */
- /* secondary hdd not supported */
- hwif->drives[1].autodma = 0;
-
- hwif->drives[1].drive_data = 0;
- hwif->drives[1].using_dma = 0;
- hwif->drives[1].waiting_for_dma = 0;
- hwif->drives[1].autotune = 2; /* 1=autotune, 2=noautotune, 0=default */
-#endif
- hwif->drives[0].io_32bit = 0; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */
- hwif->drives[1].io_32bit = 0; /* 0=16-bit, 1=32-bit, 2/3=32bit+sync */
-
- /*Register Driver with PM Framework*/
-#ifdef CONFIG_PM
- auide_hwif.pm.lock = SPIN_LOCK_UNLOCKED;
- auide_hwif.pm.stopped = 0;
-
- auide_hwif.pm.dev = new_au1xxx_power_device( "ide",
- &au1200ide_pm_callback,
- NULL);
- if ( auide_hwif.pm.dev == NULL )
- printk(KERN_INFO "Unable to create a power management \
- device entry for the au1200-IDE.\n");
- else
- printk(KERN_INFO "Power management device entry for the \
- au1200-IDE loaded.\n");
+ hwif->autodma = 0;
+ hwif->channel = 0;
+ hwif->hold = 1;
+ hwif->select_data = 0; /* no chipset-specific code */
+ hwif->config_data = 0; /* no chipset-specific code */
+
+ hwif->drives[0].autodma = 0;
+ hwif->drives[0].autotune = 1; /* 1=autotune, 2=noautotune, 0=default */
#endif
+ hwif->drives[0].no_io_32bit = 1;
- auide_hwif.hwif = hwif;
- hwif->hwif_data = &auide_hwif;
+ auide_hwif.hwif = hwif;
+ hwif->hwif_data = &auide_hwif;
-#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
- auide_ddma_init(&auide_hwif);
- dbdma_init_done = 1;
+#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
+ auide_ddma_init(&auide_hwif);
+ dbdma_init_done = 1;
#endif
probe_hwif_init(hwif);
dev_set_drvdata(dev, hwif);
- printk(KERN_INFO "Au1xxx IDE(builtin) configured for %s\n", mode );
+ printk(KERN_INFO "Au1xxx IDE(builtin) configured for %s\n", mode );
-out:
- return ret;
+ out:
+ return ret;
}
static int au_ide_remove(struct device *dev)
@@ -1045,7 +780,7 @@ static int au_ide_remove(struct device *dev)
struct platform_device *pdev = to_platform_device(dev);
struct resource *res;
ide_hwif_t *hwif = dev_get_drvdata(dev);
- _auide_hwif *ahwif = &auide_hwif;
+ _auide_hwif *ahwif = &auide_hwif;
ide_unregister(hwif - ide_hwifs);
@@ -1069,180 +804,11 @@ static int __init au_ide_init(void)
return driver_register(&au1200_ide_driver);
}
-static void __init au_ide_exit(void)
+static void __exit au_ide_exit(void)
{
driver_unregister(&au1200_ide_driver);
}
-#ifdef CONFIG_PM
-int au1200ide_pm_callback( au1xxx_power_dev_t *dev,\
- au1xxx_request_t request, void *data) {
-
- unsigned int d, err = 0;
- unsigned long flags;
-
- spin_lock_irqsave(auide_hwif.pm.lock, flags);
-
- switch (request){
- case AU1XXX_PM_SLEEP:
- err = au1xxxide_pm_sleep(dev);
- break;
- case AU1XXX_PM_WAKEUP:
- d = *((unsigned int*)data);
- if ( d > 0 && d <= 99) {
- err = au1xxxide_pm_standby(dev);
- }
- else {
- err = au1xxxide_pm_resume(dev);
- }
- break;
- case AU1XXX_PM_GETSTATUS:
- err = au1xxxide_pm_getstatus(dev);
- break;
- case AU1XXX_PM_ACCESS:
- err = au1xxxide_pm_access(dev);
- break;
- case AU1XXX_PM_IDLE:
- err = au1xxxide_pm_idle(dev);
- break;
- case AU1XXX_PM_CLEANUP:
- err = au1xxxide_pm_cleanup(dev);
- break;
- default:
- err = -1;
- break;
- }
-
- spin_unlock_irqrestore(auide_hwif.pm.lock, flags);
-
- return err;
-}
-
-static int au1xxxide_pm_standby( au1xxx_power_dev_t *dev ) {
- return 0;
-}
-
-static int au1xxxide_pm_sleep( au1xxx_power_dev_t *dev ) {
-
- int retval;
- ide_hwif_t *hwif = auide_hwif.hwif;
- struct request rq;
- struct request_pm_state rqpm;
- ide_task_t args;
-
- if(auide_hwif.pm.stopped)
- return -1;
-
- /*
- * wait until hard disc is ready
- */
- if ( wait_for_ready(&hwif->drives[0], 35000) ) {
- printk("Wait for drive sleep timeout!\n");
- retval = -1;
- }
-
- /*
- * sequenz to tell the high level ide driver that pm is resuming
- */
- memset(&rq, 0, sizeof(rq));
- memset(&rqpm, 0, sizeof(rqpm));
- memset(&args, 0, sizeof(args));
- rq.flags = REQ_PM_SUSPEND;
- rq.special = &args;
- rq.pm = &rqpm;
- rqpm.pm_step = ide_pm_state_start_suspend;
- rqpm.pm_state = PMSG_SUSPEND;
-
- retval = ide_do_drive_cmd(&hwif->drives[0], &rq, ide_wait);
-
- if (wait_for_ready (&hwif->drives[0], 35000)) {
- printk("Wait for drive sleep timeout!\n");
- retval = -1;
- }
-
- /*
- * stop dbdma channels
- */
- au1xxx_dbdma_reset(auide_hwif.tx_chan);
- au1xxx_dbdma_reset(auide_hwif.rx_chan);
-
- auide_hwif.pm.stopped = 1;
-
- return retval;
-}
-
-static int au1xxxide_pm_resume( au1xxx_power_dev_t *dev ) {
-
- int retval;
- ide_hwif_t *hwif = auide_hwif.hwif;
- struct request rq;
- struct request_pm_state rqpm;
- ide_task_t args;
-
- if(!auide_hwif.pm.stopped)
- return -1;
-
- /*
- * start dbdma channels
- */
- au1xxx_dbdma_start(auide_hwif.tx_chan);
- au1xxx_dbdma_start(auide_hwif.rx_chan);
-
- /*
- * wait until hard disc is ready
- */
- if (wait_for_ready ( &hwif->drives[0], 35000)) {
- printk("Wait for drive wake up timeout!\n");
- retval = -1;
- }
-
- /*
- * sequenz to tell the high level ide driver that pm is resuming
- */
- memset(&rq, 0, sizeof(rq));
- memset(&rqpm, 0, sizeof(rqpm));
- memset(&args, 0, sizeof(args));
- rq.flags = REQ_PM_RESUME;
- rq.special = &args;
- rq.pm = &rqpm;
- rqpm.pm_step = ide_pm_state_start_resume;
- rqpm.pm_state = PMSG_ON;
-
- retval = ide_do_drive_cmd(&hwif->drives[0], &rq, ide_head_wait);
-
- /*
- * wait for hard disc
- */
- if ( wait_for_ready(&hwif->drives[0], 35000) ) {
- printk("Wait for drive wake up timeout!\n");
- retval = -1;
- }
-
- auide_hwif.pm.stopped = 0;
-
- return retval;
-}
-
-static int au1xxxide_pm_getstatus( au1xxx_power_dev_t *dev ) {
- return dev->cur_state;
-}
-
-static int au1xxxide_pm_access( au1xxx_power_dev_t *dev ) {
- if (dev->cur_state != AWAKE_STATE)
- return 0;
- else
- return -1;
-}
-
-static int au1xxxide_pm_idle( au1xxx_power_dev_t *dev ) {
- return 0;
-}
-
-static int au1xxxide_pm_cleanup( au1xxx_power_dev_t *dev ) {
- return 0;
-}
-#endif /* CONFIG_PM */
-
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("AU1200 IDE driver");
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 11:57:04 +0100