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ide-atapi: split drive-specific functionality in ide_issue_pc 

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 16:12:55 +01:00 committed by Bartlomiej Zolnierkiewicz
parent def860d061
commit d77612ab0a
1 changed files with 22 additions and 18 deletions
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40
drivers/ide/ide-atapi.c
View File

@ -564,40 +564,44 @@ static ide_startstop_t ide_transfer_pc(ide_drive_t *drive)
ide_startstop_t ide_issue_pc(ide_drive_t *drive, unsigned int timeout)
{
struct ide_atapi_pc *pc = drive->pc;
struct ide_atapi_pc *pc;
ide_hwif_t *hwif = drive->hwif;
ide_expiry_t *expiry = NULL;
u32 tf_flags;
u16 bcount;
/* We haven't transferred any data yet */
pc->xferred = 0;
pc->cur_pos = pc->buf;
if (dev_is_idecd(drive)) {
tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
bcount = ide_cd_get_xferlen(hwif->hwgroup->rq);
expiry = ide_cd_expiry;
if (drive->dma)
drive->dma = !hwif->dma_ops->dma_setup(drive);
} else {
pc = drive->pc;
/* We haven't transferred any data yet */
pc->xferred = 0;
pc->cur_pos = pc->buf;
tf_flags = IDE_TFLAG_OUT_DEVICE;
bcount = ((drive->media == ide_tape) ?
pc->req_xfer :
min(pc->req_xfer, 63 * 1024));
if (pc->flags & PC_FLAG_DMA_ERROR) {
pc->flags &= ~PC_FLAG_DMA_ERROR;
ide_dma_off(drive);
}
if ((pc->flags & PC_FLAG_DMA_OK) &&
(drive->dev_flags & IDE_DFLAG_USING_DMA))
drive->dma = !hwif->dma_ops->dma_setup(drive);
if (!drive->dma)
pc->flags &= ~PC_FLAG_DMA_OK;
}
if (pc->flags & PC_FLAG_DMA_ERROR) {
pc->flags &= ~PC_FLAG_DMA_ERROR;
ide_dma_off(drive);
}
if (((pc->flags & PC_FLAG_DMA_OK) &&
(drive->dev_flags & IDE_DFLAG_USING_DMA)) ||
drive->dma)
drive->dma = !hwif->dma_ops->dma_setup(drive);
if (!drive->dma)
pc->flags &= ~PC_FLAG_DMA_OK;
ide_pktcmd_tf_load(drive, tf_flags, bcount, drive->dma);
/* Issue the packet command */