lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

ide: add ide_pktcmd_tf_load() helper

Browse Source 
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>
This commit is contained in:
Bartlomiej Zolnierkiewicz
2008-01-25 22:17:13 +01:00
parent 932aead6d2
commit 2fc5738819
6 changed files with 26 additions and 26 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
drivers/ide/ide-io.c
View File

@@ -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);