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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-27 12:46:46 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-27 12:46:46 +0100
commit2298169418f43ba5e0919762a4bab95a1227872a (patch)
tree67cf3133c7bae747ad957c68a650534105a7d8e7 /drivers/ide/ide-atapi.c
parent130e886708d6e11f3d54e5d27c266578de56f343 (diff)
ide: pass command to ide_map_sg()
* Set IDE_TFLAG_WRITE flag and ->rq also for ATA_CMD_PACKET commands. * Pass command to ->dma_setup method and update all its implementations accordingly. * Pass command instead of request to ide_build_sglist(), *_build_dmatable() and ide_map_sg(). While at it: * Fix scc_dma_setup() documentation + use ATA_DMA_WR define. * Rename sgiioc4_build_dma_table() to sgiioc4_build_dmatable(), change return value type to 'int' and drop unused 'ddir' argument. * Do some minor cleanups in [tx4939]ide_dma_setup(). There should be no functional changes caused by this patch. Acked-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.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index c3fd528a1b4..b56af49f876 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -638,12 +638,20 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
{
struct ide_atapi_pc *pc;
ide_hwif_t *hwif = drive->hwif;
+ const struct ide_dma_ops *dma_ops = hwif->dma_ops;
+ struct ide_cmd *cmd = &hwif->cmd;
ide_expiry_t *expiry = NULL;
struct request *rq = hwif->rq;
unsigned int timeout;
u32 tf_flags;
u16 bcount;
+ if (drive->media != ide_floppy) {
+ if (rq_data_dir(rq))
+ cmd->tf_flags |= IDE_TFLAG_WRITE;
+ cmd->rq = rq;
+ }
+
if (dev_is_idecd(drive)) {
tf_flags = IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL;
bcount = ide_cd_get_xferlen(rq);
@@ -651,8 +659,8 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
timeout = ATAPI_WAIT_PC;
if (drive->dma) {
- if (ide_build_sglist(drive, rq))
- drive->dma = !hwif->dma_ops->dma_setup(drive);
+ if (ide_build_sglist(drive, cmd))
+ drive->dma = !dma_ops->dma_setup(drive, cmd);
else
drive->dma = 0;
}
@@ -675,8 +683,8 @@ ide_startstop_t ide_issue_pc(ide_drive_t *drive)
if ((pc->flags & PC_FLAG_DMA_OK) &&
(drive->dev_flags & IDE_DFLAG_USING_DMA)) {
- if (ide_build_sglist(drive, rq))
- drive->dma = !hwif->dma_ops->dma_setup(drive);
+ if (ide_build_sglist(drive, cmd))
+ drive->dma = !dma_ops->dma_setup(drive, cmd);
else
drive->dma = 0;
}