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| author | Borislav Petkov <petkovbb@googlemail.com> | 2008-10-13 21:39:49 +0200 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-10-13 21:39:49 +0200 |
| commit | 0a9b6f8864362e31e348b12922a92b48b1b8cc94 (patch) | |
| tree | 00aac30c355cf10cd5e2db7f99dd7cfb587c70db | |
| parent | 35d9b17fe2dc48514fa3fbeec910e54103d13333 (diff) | |
| download | kernel_samsung_crespo-0a9b6f8864362e31e348b12922a92b48b1b8cc94.zip kernel_samsung_crespo-0a9b6f8864362e31e348b12922a92b48b1b8cc94.tar.gz kernel_samsung_crespo-0a9b6f8864362e31e348b12922a92b48b1b8cc94.tar.bz2 | |
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.c | 9 | ||||
| -rw-r--r-- | include/linux/ide.h | 1 |
2 files changed, 6 insertions, 4 deletions
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index a1d8c35..d557841 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 5a39dab..8247b28 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 */ |