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| author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-01-25 22:17:10 +0100 |
|---|---|---|
| committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-01-25 22:17:10 +0100 |
| commit | 807e35d695690011faa1ce3ad67dfc23c1e39bdc (patch) | |
| tree | 4b9b8328ea27896ea6050a90949d79f6e158d573 /drivers/ide/ide-taskfile.c | |
| parent | 54688aa372cbc83c4361bfb9236f9bfe02168e19 (diff) | |
| download | lwn-807e35d695690011faa1ce3ad67dfc23c1e39bdc.tar.gz lwn-807e35d695690011faa1ce3ad67dfc23c1e39bdc.zip | |
ide: use ide_tf_load() in execute_drive_cmd()
* Add IDE_TFLAG_OUT_DEVICE taskfile flag to indicate the need of writing
the Device register and handle it in ide_tf_load().
Update ide_tf_load() and {do_rw,flagged}_taskfile() users accordingly.
* Use struct ide_taskfile and ide_tf_load() in execute_drive_cmd().
* Make the debugging code dump all taskfile registers for both
REQ_ATA_TYPE_{CMD,TASK} requests and move it to ide_tf_load()
so it also covers REQ_ATA_TYPE_TASKFILE requests.
There should be no functionality changes caused by this patch
(unless DEBUG is defined).
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide/ide-taskfile.c')
| -rw-r--r-- | drivers/ide/ide-taskfile.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/ide/ide-taskfile.c b/drivers/ide/ide-taskfile.c index a7668b459fe1..8a5a10fdcfcb 100644 --- a/drivers/ide/ide-taskfile.c +++ b/drivers/ide/ide-taskfile.c @@ -72,6 +72,13 @@ void ide_tf_load(ide_drive_t *drive, ide_task_t *task) if (task->tf_flags & IDE_TFLAG_FLAGGED) HIHI = 0xFF; +#ifdef DEBUG + printk("%s: tf: feat 0x%02x nsect 0x%02x lbal 0x%02x " + "lbam 0x%02x lbah 0x%02x dev 0x%02x cmd 0x%02x\n", + drive->name, tf->feature, tf->nsect, tf->lbal, + tf->lbam, tf->lbah, tf->device, tf->command); +#endif + if (IDE_CONTROL_REG) hwif->OUTB(drive->ctl, IDE_CONTROL_REG); /* clear nIEN */ @@ -103,7 +110,8 @@ void ide_tf_load(ide_drive_t *drive, ide_task_t *task) if (task->tf_flags & IDE_TFLAG_OUT_LBAH) hwif->OUTB(tf->lbah, IDE_HCYL_REG); - hwif->OUTB((tf->device & HIHI) | drive->select.all, IDE_SELECT_REG); + if (task->tf_flags & IDE_TFLAG_OUT_DEVICE) + hwif->OUTB((tf->device & HIHI) | drive->select.all, IDE_SELECT_REG); } EXPORT_SYMBOL_GPL(ide_tf_load); |