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ide: add ide_drive_t.dma flag

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This flag is to accomodate ide-cd functionality into ide atapi.

There should be no functionality change resulting from this patch.

Signed-off-by: Borislav Petkov <[email protected]>
Signed-off-by: Bartlomiej Zolnierkiewicz <[email protected]>
This commit is contained in:
Borislav Petkov 2008-10-13 21:39:49 +02:00 • committed by Bartlomiej Zolnierkiewicz
commit 0a9b6f8864
2 changed files with 6 additions and 4 deletions
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9
drivers/ide/ide-atapi.c
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@ -545,7 +545,7 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout,
struct ide_atapi_pc *pc = drive->pc;
ide_hwif_t *hwif = drive->hwif;
u16 bcount;
u8 dma = 0, scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI);
u8 scsi = !!(drive->dev_flags & IDE_DFLAG_SCSI);
/* We haven't transferred any data yet */
pc->xferred = 0;
@ -566,15 +566,16 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout,
(drive->dev_flags & IDE_DFLAG_USING_DMA)) {
if (scsi)
hwif->sg_mapped = 1;
dma = !hwif->dma_ops->dma_setup(drive);
drive->dma = !hwif->dma_ops->dma_setup(drive);
if (scsi)
hwif->sg_mapped = 0;
}
if (!dma)
if (!drive->dma)
pc->flags &= ~PC_FLAG_DMA_OK;
ide_pktcmd_tf_load(drive, scsi ? 0 : IDE_TFLAG_OUT_DEVICE, bcount, dma);
ide_pktcmd_tf_load(drive, scsi ? 0 : IDE_TFLAG_OUT_DEVICE, bcount,
drive->dma);
/* Issue the packet command */
if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) {