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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-01-26 00:17:13 +0300 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-01-26 00:17:13 +0300 |
| commit | 2fc573881957337c4ea1c84b92d2f27d076cad57 (patch) | |
| tree | 790726063934a7ea8c384f2314d44bc03b22f779 /drivers/ide/ide-io.c | |
| parent | 932aead6d21b631b2058255981824008a6eae32e (diff) | |
| download | linux-2fc573881957337c4ea1c84b92d2f27d076cad57.tar.xz | |
ide: add ide_pktcmd_tf_load() helper
Add ide_pktcmd_tf_load() helper and convert ATAPI device drivers to use it.
There should be no functionality changes caused by this patch.
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-io.c')
| -rw-r--r-- | drivers/ide/ide-io.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c index d36df77c7519..1ed7a8627cca 100644 --- a/drivers/ide/ide-io.c +++ b/drivers/ide/ide-io.c @@ -1734,3 +1734,19 @@ int ide_do_drive_cmd (ide_drive_t *drive, struct request *rq, ide_action_t actio } EXPORT_SYMBOL(ide_do_drive_cmd); + +void ide_pktcmd_tf_load(ide_drive_t *drive, u32 tf_flags, u16 bcount, u8 dma) +{ + ide_task_t task; + + memset(&task, 0, sizeof(task)); + task.tf_flags = IDE_TFLAG_OUT_LBAH | IDE_TFLAG_OUT_LBAM | + IDE_TFLAG_OUT_FEATURE | tf_flags; + task.tf.feature = dma; /* Use PIO/DMA */ + task.tf.lbam = bcount & 0xff; + task.tf.lbah = (bcount >> 8) & 0xff; + + ide_tf_load(drive, &task); +} + +EXPORT_SYMBOL_GPL(ide_pktcmd_tf_load); |