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| author | James Morris <jmorris@namei.org> | 2009-03-27 00:28:11 +0300 |
|---|---|---|
| committer | James Morris <jmorris@namei.org> | 2009-03-27 00:28:11 +0300 |
| commit | 1987f17d2266e882862528841429b5bf67bc8fe5 (patch) | |
| tree | 5c3fbee88018ab7259a18c10e6320e575d0ed679 /drivers/ide/ide-park.c | |
| parent | 7198e2eeb44b3fe7cc97f997824002da47a9c644 (diff) | |
| parent | 0384e2959127a56d0640505d004d8dd92f9c29f5 (diff) | |
| download | linux-1987f17d2266e882862528841429b5bf67bc8fe5.tar.xz | |
Merge branch 'master' into next
Diffstat (limited to 'drivers/ide/ide-park.c')
| -rw-r--r-- | drivers/ide/ide-park.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c index c875a957596c..f30e52152fcb 100644 --- a/drivers/ide/ide-park.c +++ b/drivers/ide/ide-park.c @@ -1,5 +1,6 @@ #include <linux/kernel.h> #include <linux/ide.h> +#include <linux/hdreg.h> #include <linux/jiffies.h> #include <linux/blkdev.h> @@ -60,6 +61,30 @@ out: return; } +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); +} + ssize_t ide_park_show(struct device *dev, struct device_attribute *attr, char *buf) { |