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authorBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-24 23:22:44 +0100
committerBartlomiej Zolnierkiewicz <bzolnier@gmail.com>2009-03-24 23:22:44 +0100
commit1bc6daae4aba9194f8ff6801af8367a1a4718965 (patch)
treea2b2023bb19555658b940dd046330061f0f6a7fe /drivers/ide
parent1866082339597930c5b77aad8de34ab4fbb5724f (diff)
ide: factor out processing of special commands from ide_special_rq()
Factor out processing of special commands from ide_special_rq() to ide_do_devset() and ide_do_park_unpark(). There should be no functional changes caused by this patch. Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers/ide')
-rw-r--r--drivers/ide/ide-io.c75
1 files changed, 41 insertions, 34 deletions
diff --git a/drivers/ide/ide-io.c b/drivers/ide/ide-io.c
index 56be3375bee..c37883ae266 100644
--- a/drivers/ide/ide-io.c
+++ b/drivers/ide/ide-io.c
@@ -514,46 +514,53 @@ int ide_devset_execute(ide_drive_t *drive, const struct ide_devset *setting,
return ret;
}
+static ide_startstop_t ide_do_devset(ide_drive_t *drive, struct request *rq)
+{
+ int err, (*setfunc)(ide_drive_t *, int) = rq->special;
+
+ err = setfunc(drive, *(int *)&rq->cmd[1]);
+ if (err)
+ rq->errors = err;
+ else
+ err = 1;
+ ide_end_request(drive, err, 0);
+ return ide_stopped;
+}
+
+static ide_startstop_t ide_do_park_unpark(ide_drive_t *drive, struct request *rq)
+{
+ ide_task_t task;
+ struct ide_taskfile *tf = &task.tf;
+
+ memset(&task, 0, sizeof(task));
+ if (rq->cmd[0] == REQ_PARK_HEADS) {
+ drive->sleep = *(unsigned long *)rq->special;
+ drive->dev_flags |= IDE_DFLAG_SLEEPING;
+ tf->command = ATA_CMD_IDLEIMMEDIATE;
+ tf->feature = 0x44;
+ tf->lbal = 0x4c;
+ tf->lbam = 0x4e;
+ tf->lbah = 0x55;
+ task.tf_flags |= IDE_TFLAG_CUSTOM_HANDLER;
+ } else /* cmd == REQ_UNPARK_HEADS */
+ tf->command = ATA_CMD_CHK_POWER;
+
+ task.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
+ task.rq = rq;
+ drive->hwif->data_phase = task.data_phase = TASKFILE_NO_DATA;
+ return do_rw_taskfile(drive, &task);
+}
+
static ide_startstop_t ide_special_rq(ide_drive_t *drive, struct request *rq)
{
u8 cmd = rq->cmd[0];
- if (cmd == REQ_PARK_HEADS || cmd == REQ_UNPARK_HEADS) {
- ide_task_t task;
- struct ide_taskfile *tf = &task.tf;
-
- memset(&task, 0, sizeof(task));
- if (cmd == REQ_PARK_HEADS) {
- drive->sleep = *(unsigned long *)rq->special;
- drive->dev_flags |= IDE_DFLAG_SLEEPING;
- tf->command = ATA_CMD_IDLEIMMEDIATE;
- tf->feature = 0x44;
- tf->lbal = 0x4c;
- tf->lbam = 0x4e;
- tf->lbah = 0x55;
- task.tf_flags |= IDE_TFLAG_CUSTOM_HANDLER;
- } else /* cmd == REQ_UNPARK_HEADS */
- tf->command = ATA_CMD_CHK_POWER;
-
- task.tf_flags |= IDE_TFLAG_TF | IDE_TFLAG_DEVICE;
- task.rq = rq;
- drive->hwif->data_phase = task.data_phase = TASKFILE_NO_DATA;
- return do_rw_taskfile(drive, &task);
- }
-
switch (cmd) {
+ case REQ_PARK_HEADS:
+ case REQ_UNPARK_HEADS:
+ return ide_do_park_unpark(drive, rq);
case REQ_DEVSET_EXEC:
- {
- int err, (*setfunc)(ide_drive_t *, int) = rq->special;
-
- err = setfunc(drive, *(int *)&rq->cmd[1]);
- if (err)
- rq->errors = err;
- else
- err = 1;
- ide_end_request(drive, err, 0);
- return ide_stopped;
- }
+ return ide_do_devset(drive, rq);
case REQ_DRIVE_RESET:
return ide_do_reset(drive);
default: