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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-01-26 00:17:10 +0300
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2008-01-26 00:17:10 +0300
commit807e35d695690011faa1ce3ad67dfc23c1e39bdc (patch)
tree4b9b8328ea27896ea6050a90949d79f6e158d573 /drivers/ide/ide-taskfile.c
parent54688aa372cbc83c4361bfb9236f9bfe02168e19 (diff)
downloadlinux-807e35d695690011faa1ce3ad67dfc23c1e39bdc.tar.xz
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.c10
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);