ide: remove the legacy ide driver

[linux-2.6-block.git] / drivers / ide / ide-park.c

diff --git a/drivers/ide/ide-park.c b/drivers/ide/ide-park.c
deleted file mode 100644 (file)
index a80a0f2..0000000
--- a/drivers/ide/ide-park.c
+++ /dev/null
@@ -1,155 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/kernel.h>
-#include <linux/gfp.h>
-#include <linux/ide.h>
-#include <linux/jiffies.h>
-#include <linux/blkdev.h>
-
-DECLARE_WAIT_QUEUE_HEAD(ide_park_wq);
-
-static void issue_park_cmd(ide_drive_t *drive, unsigned long timeout)
-{
-       ide_hwif_t *hwif = drive->hwif;
-       struct request_queue *q = drive->queue;
-       struct request *rq;
-       int rc;
-
-       timeout += jiffies;
-       spin_lock_irq(&hwif->lock);
-       if (drive->dev_flags & IDE_DFLAG_PARKED) {
-               int reset_timer = time_before(timeout, drive->sleep);
-               int start_queue = 0;
-
-               drive->sleep = timeout;
-               wake_up_all(&ide_park_wq);
-               if (reset_timer && del_timer(&hwif->timer))
-                       start_queue = 1;
-               spin_unlock_irq(&hwif->lock);
-
-               if (start_queue)
-                       blk_mq_run_hw_queues(q, true);
-               return;
-       }
-       spin_unlock_irq(&hwif->lock);
-
-       rq = blk_get_request(q, REQ_OP_DRV_IN, 0);
-       scsi_req(rq)->cmd[0] = REQ_PARK_HEADS;
-       scsi_req(rq)->cmd_len = 1;
-       ide_req(rq)->type = ATA_PRIV_MISC;
-       ide_req(rq)->special = &timeout;
-       blk_execute_rq(NULL, rq, 1);
-       rc = scsi_req(rq)->result ? -EIO : 0;
-       blk_put_request(rq);
-       if (rc)
-               goto out;
-
-       /*
-        * Make sure that *some* command is sent to the drive after the
-        * timeout has expired, so power management will be reenabled.
-        */
-       rq = blk_get_request(q, REQ_OP_DRV_IN, BLK_MQ_REQ_NOWAIT);
-       if (IS_ERR(rq))
-               goto out;
-
-       scsi_req(rq)->cmd[0] = REQ_UNPARK_HEADS;
-       scsi_req(rq)->cmd_len = 1;
-       ide_req(rq)->type = ATA_PRIV_MISC;
-       spin_lock_irq(&hwif->lock);
-       ide_insert_request_head(drive, rq);
-       spin_unlock_irq(&hwif->lock);
-
-out:
-       return;
-}
-
-ide_startstop_t ide_do_park_unpark(ide_drive_t *drive, struct request *rq)
-{
-       struct ide_cmd cmd;
-       struct ide_taskfile *tf = &cmd.tf;
-
-       memset(&cmd, 0, sizeof(cmd));
-       if (scsi_req(rq)->cmd[0] == REQ_PARK_HEADS) {
-               drive->sleep = *(unsigned long *)ide_req(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;
-               cmd.valid.out.tf = IDE_VALID_OUT_TF | IDE_VALID_DEVICE;
-               cmd.valid.in.tf  = IDE_VALID_IN_TF  | IDE_VALID_DEVICE;
-       } else          /* cmd == REQ_UNPARK_HEADS */
-               tf->command = ATA_CMD_CHK_POWER;
-
-       cmd.tf_flags |= IDE_TFLAG_CUSTOM_HANDLER;
-       cmd.protocol = ATA_PROT_NODATA;
-
-       cmd.rq = rq;
-
-       return do_rw_taskfile(drive, &cmd);
-}
-
-ssize_t ide_park_show(struct device *dev, struct device_attribute *attr,
-                     char *buf)
-{
-       ide_drive_t *drive = to_ide_device(dev);
-       ide_hwif_t *hwif = drive->hwif;
-       unsigned long now;
-       unsigned int msecs;
-
-       if (drive->dev_flags & IDE_DFLAG_NO_UNLOAD)
-               return -EOPNOTSUPP;
-
-       spin_lock_irq(&hwif->lock);
-       now = jiffies;
-       if (drive->dev_flags & IDE_DFLAG_PARKED &&
-           time_after(drive->sleep, now))
-               msecs = jiffies_to_msecs(drive->sleep - now);
-       else
-               msecs = 0;
-       spin_unlock_irq(&hwif->lock);
-
-       return snprintf(buf, 20, "%u\n", msecs);
-}
-
-ssize_t ide_park_store(struct device *dev, struct device_attribute *attr,
-                      const char *buf, size_t len)
-{
-#define MAX_PARK_TIMEOUT 30000
-       ide_drive_t *drive = to_ide_device(dev);
-       long int input;
-       int rc;
-
-       rc = kstrtol(buf, 10, &input);
-       if (rc)
-               return rc;
-       if (input < -2)
-               return -EINVAL;
-       if (input > MAX_PARK_TIMEOUT) {
-               input = MAX_PARK_TIMEOUT;
-               rc = -EOVERFLOW;
-       }
-
-       mutex_lock(&ide_setting_mtx);
-       if (input >= 0) {
-               if (drive->dev_flags & IDE_DFLAG_NO_UNLOAD)
-                       rc = -EOPNOTSUPP;
-               else if (input || drive->dev_flags & IDE_DFLAG_PARKED)
-                       issue_park_cmd(drive, msecs_to_jiffies(input));
-       } else {
-               if (drive->media == ide_disk)
-                       switch (input) {
-                       case -1:
-                               drive->dev_flags &= ~IDE_DFLAG_NO_UNLOAD;
-                               break;
-                       case -2:
-                               drive->dev_flags |= IDE_DFLAG_NO_UNLOAD;
-                               break;
-                       }
-               else
-                       rc = -EOPNOTSUPP;
-       }
-       mutex_unlock(&ide_setting_mtx);
-
-       return rc ? rc : len;
-}