diff options
| author | Borislav Petkov <petkovbb@googlemail.com> | 2009-01-02 16:12:55 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2009-01-02 16:12:55 +0100 |
| commit | d77612ab0ad7515623b084b952dfefd547073ada (patch) | |
| tree | cce9e341c9241ca831ed92839348296385b27852 /drivers/ide/ide-atapi.c | |
| parent | def860d061d0fcab7fbbe193c0b8b8f0b9b4c828 (diff) | |
| download | linux-d77612ab0ad7515623b084b952dfefd547073ada.tar.bz2 | |
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>
Diffstat (limited to 'drivers/ide/ide-atapi.c')
| -rw-r--r-- | drivers/ide/ide-atapi.c | 36 |
1 files changed, 20 insertions, 16 deletions
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index cf2b99c37364..fa7a70a3f24c 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -564,39 +564,43 @@ 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_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 ((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 (!drive->dma) + pc->flags &= ~PC_FLAG_DMA_OK; + } ide_pktcmd_tf_load(drive, tf_flags, bcount, drive->dma); |