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authorBorislav Petkov <petkovbb@googlemail.com>2008-10-13 21:39:49 +0200
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-10-13 21:39:49 +0200
commit0a9b6f8864362e31e348b12922a92b48b1b8cc94 (patch)
tree00aac30c355cf10cd5e2db7f99dd7cfb587c70db
parent35d9b17fe2dc48514fa3fbeec910e54103d13333 (diff)
ide: add ide_drive_t.dma flag
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 <petkovbb@gmail.com> Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
-rw-r--r--drivers/ide/ide-atapi.c9
-rw-r--r--include/linux/ide.h1
2 files changed, 6 insertions, 4 deletions
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c
index a1d8c3557a4..d55784173a7 100644
--- a/drivers/ide/ide-atapi.c
+++ b/drivers/ide/ide-atapi.c
@@ -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) {
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 5a39dab2cc9..8247b286838 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -603,6 +603,7 @@ struct ide_drive_s {
u8 select; /* basic drive/head select reg value */
u8 retry_pio; /* retrying dma capable host in pio */
u8 waiting_for_dma; /* dma currently in progress */
+ u8 dma; /* atapi dma flag */
u8 quirk_list; /* considered quirky, set for a specific host */
u8 init_speed; /* transfer rate set at boot */