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ide-atapi: start dma in a drive-specific way 

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <petkovbb@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This commit is contained in:
Borislav Petkov 2009-01-02 16:12:56 +01:00 committed by Bartlomiej Zolnierkiewicz
parent 06cc2778a1
commit b16aabc937
1 changed files with 11 additions and 4 deletions
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15
drivers/ide/ide-atapi.c
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@ -489,7 +489,7 @@ static int ide_delayed_transfer_pc(ide_drive_t *drive)
static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)
{
struct ide_atapi_pc *pc = drive->pc;
struct ide_atapi_pc *uninitialized_var(pc);
ide_hwif_t *hwif = drive->hwif;
struct request *rq = hwif->hwgroup->rq;
ide_expiry_t *expiry;
@ -518,6 +518,8 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)
timeout = rq->timeout;
expiry = ide_cd_expiry;
} else {
pc = drive->pc;
cmd_len = ATAPI_MIN_CDB_BYTES;
/*
@ -550,9 +552,14 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)
ide_set_handler(drive, ide_pc_intr, timeout, expiry);
/* Begin DMA, if necessary */
if (pc->flags & PC_FLAG_DMA_OK) {
pc->flags |= PC_FLAG_DMA_IN_PROGRESS;
hwif->dma_ops->dma_start(drive);
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);
}
}
/* Send the actual packet */