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ide: move check_dma_crc() to ide-dma.c 

* Move check_dma_crc() to ide-dma.c and add inline version for
  CONFIG_BLK_DEV_IDEDMA=n case.

* Rename check_dma_crc() to ide_check_dma_crc().

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2008-02-02 19:56:47 +01:00
parent 296921a4ca
commit 578cfa0d72
3 changed files with 23 additions and 23 deletions
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20
drivers/ide/ide-dma.c
View File

@ -819,6 +819,26 @@ int ide_set_dma(ide_drive_t *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);
}
#ifdef CONFIG_BLK_DEV_IDEDMA_PCI
void ide_dma_lost_irq (ide_drive_t *drive)
{

24
drivers/ide/ide-iops.c
View File

@ -938,28 +938,6 @@ static ide_startstop_t reset_pollfunc (ide_drive_t *drive)
return ide_stopped;
}
static void check_dma_crc(ide_drive_t *drive)
{
#ifdef CONFIG_BLK_DEV_IDEDMA
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);
#endif
}
static void ide_disk_pre_reset(ide_drive_t *drive)
{
int legacy = (drive->id->cfs_enable_2 & 0x0400) ? 0 : 1;
@ -983,7 +961,7 @@ static void pre_reset(ide_drive_t *drive)
if (drive->using_dma) {
if (drive->crc_count)
check_dma_crc(drive);
ide_check_dma_crc(drive);
else
ide_dma_off(drive);
}

2
include/linux/ide.h
View File

@ -1155,6 +1155,7 @@ 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_build_sglist(ide_drive_t *, struct request *);
@ -1182,6 +1183,7 @@ 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) { ; }
#endif /* CONFIG_BLK_DEV_IDEDMA */
#ifndef CONFIG_BLK_DEV_IDEDMA_PCI