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sgiioc4: fix sgiioc4_ide_dma_check() to enable/disable DMA properly

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* use sgiioc4_ide_dma_{on,off_quietly}() instead of changing
  drive->using_dma directly
* fix warning message
* add FIXME

Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Bartlomiej Zolnierkiewicz 2007-02-17 02:40:26 +01:00
parent d8f4469d5f
commit 9ef5791e1b
1 changed files with 11 additions and 15 deletions
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26
drivers/ide/pci/sgiioc4.c
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@ -274,21 +274,6 @@ sgiioc4_ide_dma_end(ide_drive_t * drive)
return dma_stat;
}
static int
sgiioc4_ide_dma_check(ide_drive_t * drive)
{
if (ide_config_drive_speed(drive, XFER_MW_DMA_2) != 0) {
printk(KERN_INFO
"Couldnot set %s in Multimode-2 DMA mode | "
"Drive %s using PIO instead\n",
drive->name, drive->name);
drive->using_dma = 0;
} else
drive->using_dma = 1;
return 0;
}
static int
sgiioc4_ide_dma_on(ide_drive_t * drive)
{
@ -305,6 +290,17 @@ sgiioc4_ide_dma_off_quietly(ide_drive_t * drive)
return HWIF(drive)->ide_dma_host_off(drive);
}
static int sgiioc4_ide_dma_check(ide_drive_t *drive)
{
/* FIXME: check for available DMA modes */
if (ide_config_drive_speed(drive, XFER_MW_DMA_2) != 0) {
printk(KERN_WARNING "%s: couldn't set MWDMA2 mode, "
"using PIO instead\n", drive->name);
return sgiioc4_ide_dma_off_quietly(drive);
} else
return sgiioc4_ide_dma_on(drive);
}
/* returns 1 if dma irq issued, 0 otherwise */
static int
sgiioc4_ide_dma_test_irq(ide_drive_t * drive)