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path: root/drivers/ide/ide-cd.c
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Diffstat (limited to 'drivers/ide/ide-cd.c')
-rw-r--r--drivers/ide/ide-cd.c142
1 files changed, 26 insertions, 116 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 42ab6d8715f..5daa4dd1b01 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -262,7 +262,6 @@ static void cdrom_end_request(ide_drive_t *drive, int uptodate)
struct request *failed = (struct request *) rq->buffer;
struct cdrom_info *info = drive->driver_data;
void *sense = &info->sense_data;
- unsigned long flags;
if (failed) {
if (failed->sense) {
@@ -278,11 +277,9 @@ static void cdrom_end_request(ide_drive_t *drive, int uptodate)
failed->hard_nr_sectors))
BUG();
} else {
- spin_lock_irqsave(&ide_lock, flags);
- if (__blk_end_request(failed, -EIO,
- failed->data_len))
+ if (blk_end_request(failed, -EIO,
+ failed->data_len))
BUG();
- spin_unlock_irqrestore(&ide_lock, flags);
}
} else
cdrom_analyze_sense_data(drive, NULL, sense);
@@ -317,7 +314,8 @@ static void ide_dump_status_no_sense(ide_drive_t *drive, const char *msg, u8 st)
static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
{
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = hwif->hwgroup->rq;
+ ide_hwgroup_t *hwgroup = hwif->hwgroup;
+ struct request *rq = hwgroup->rq;
int stat, err, sense_key;
/* check for errors */
@@ -426,16 +424,17 @@ static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
if (time_after(jiffies, info->write_timeout))
do_end_request = 1;
else {
+ struct request_queue *q = drive->queue;
unsigned long flags;
/*
* take a breather relying on the unplug
* timer to kick us again
*/
- spin_lock_irqsave(&ide_lock, flags);
- blk_plug_device(drive->queue);
- spin_unlock_irqrestore(&ide_lock,
- flags);
+ spin_lock_irqsave(q->queue_lock, flags);
+ blk_plug_device(q);
+ spin_unlock_irqrestore(q->queue_lock, flags);
+
return 1;
}
}
@@ -504,12 +503,14 @@ static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
end_request:
if (stat & ATA_ERR) {
+ struct request_queue *q = drive->queue;
unsigned long flags;
- spin_lock_irqsave(&ide_lock, flags);
+ spin_lock_irqsave(q->queue_lock, flags);
blkdev_dequeue_request(rq);
- HWGROUP(drive)->rq = NULL;
- spin_unlock_irqrestore(&ide_lock, flags);
+ spin_unlock_irqrestore(q->queue_lock, flags);
+
+ hwgroup->rq = NULL;
cdrom_queue_request_sense(drive, rq->sense, rq);
} else
@@ -773,52 +774,6 @@ static ide_startstop_t cdrom_start_rw_cont(ide_drive_t *drive)
return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr);
}
-#define IDECD_SEEK_THRESHOLD (1000) /* 1000 blocks */
-#define IDECD_SEEK_TIMER (5 * WAIT_MIN_SLEEP) /* 100 ms */
-#define IDECD_SEEK_TIMEOUT (2 * WAIT_CMD) /* 20 sec */
-
-static ide_startstop_t cdrom_seek_intr(ide_drive_t *drive)
-{
- struct cdrom_info *info = drive->driver_data;
- int stat;
- static int retry = 10;
-
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
-
- if (cdrom_decode_status(drive, 0, &stat))
- return ide_stopped;
-
- drive->atapi_flags |= IDE_AFLAG_SEEKING;
-
- if (retry && time_after(jiffies, info->start_seek + IDECD_SEEK_TIMER)) {
- if (--retry == 0)
- drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP;
- }
- return ide_stopped;
-}
-
-static void ide_cd_prepare_seek_request(ide_drive_t *drive, struct request *rq)
-{
- sector_t frame = rq->sector;
-
- ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__);
-
- sector_div(frame, queue_hardsect_size(drive->queue) >> SECTOR_BITS);
-
- memset(rq->cmd, 0, BLK_MAX_CDB);
- rq->cmd[0] = GPCMD_SEEK;
- put_unaligned(cpu_to_be32(frame), (unsigned int *) &rq->cmd[2]);
-
- rq->timeout = ATAPI_WAIT_PC;
-}
-
-static ide_startstop_t cdrom_start_seek_continuation(ide_drive_t *drive)
-{
- struct request *rq = drive->hwif->hwgroup->rq;
-
- return cdrom_transfer_packet_command(drive, rq, &cdrom_seek_intr);
-}
-
/*
* Fix up a possibly partially-processed request so that we can start it over
* entirely, or even put it back on the request queue.
@@ -950,7 +905,8 @@ static int cdrom_newpc_intr_dummy_cb(struct request *rq)
static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
- struct request *rq = HWGROUP(drive)->rq;
+ ide_hwgroup_t *hwgroup = hwif->hwgroup;
+ struct request *rq = hwgroup->rq;
xfer_func_t *xferfunc;
ide_expiry_t *expiry = NULL;
int dma_error = 0, dma, stat, thislen, uptodate = 0;
@@ -1148,17 +1104,15 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
end_request:
if (blk_pc_request(rq)) {
- unsigned long flags;
unsigned int dlen = rq->data_len;
if (dma)
rq->data_len = 0;
- spin_lock_irqsave(&ide_lock, flags);
- if (__blk_end_request(rq, 0, dlen))
+ if (blk_end_request(rq, 0, dlen))
BUG();
- HWGROUP(drive)->rq = NULL;
- spin_unlock_irqrestore(&ide_lock, flags);
+
+ hwgroup->rq = NULL;
} else {
if (!uptodate)
rq->cmd_flags |= REQ_FAILED;
@@ -1260,7 +1214,6 @@ static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
sector_t block)
{
- struct cdrom_info *info = drive->driver_data;
ide_handler_t *fn;
int xferlen;
@@ -1270,44 +1223,14 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
(unsigned long long)block);
if (blk_fs_request(rq)) {
- if (drive->atapi_flags & IDE_AFLAG_SEEKING) {
- ide_hwif_t *hwif = drive->hwif;
- unsigned long elapsed = jiffies - info->start_seek;
- int stat = hwif->tp_ops->read_status(hwif);
-
- if ((stat & ATA_DSC) != ATA_DSC) {
- if (elapsed < IDECD_SEEK_TIMEOUT) {
- ide_stall_queue(drive,
- IDECD_SEEK_TIMER);
- return ide_stopped;
- }
- printk(KERN_ERR PFX "%s: DSC timeout\n",
- drive->name);
- }
- drive->atapi_flags &= ~IDE_AFLAG_SEEKING;
- }
- if (rq_data_dir(rq) == READ &&
- IDE_LARGE_SEEK(info->last_block, block,
- IDECD_SEEK_THRESHOLD) &&
- (drive->dev_flags & IDE_DFLAG_DSC_OVERLAP)) {
- xferlen = 0;
- fn = cdrom_start_seek_continuation;
+ xferlen = 32768;
+ fn = cdrom_start_rw_cont;
- drive->dma = 0;
- info->start_seek = jiffies;
-
- ide_cd_prepare_seek_request(drive, rq);
- } else {
- xferlen = 32768;
- fn = cdrom_start_rw_cont;
-
- if (cdrom_start_rw(drive, rq) == ide_stopped)
- return ide_stopped;
+ if (cdrom_start_rw(drive, rq) == ide_stopped)
+ return ide_stopped;
- if (ide_cd_prepare_rw_request(drive, rq) == ide_stopped)
- return ide_stopped;
- }
- info->last_block = block;
+ if (ide_cd_prepare_rw_request(drive, rq) == ide_stopped)
+ return ide_stopped;
} else if (blk_sense_request(rq) || blk_pc_request(rq) ||
rq->cmd_type == REQ_TYPE_ATA_PC) {
xferlen = rq->data_len;
@@ -1908,13 +1831,6 @@ static ide_proc_entry_t idecd_proc[] = {
{ NULL, 0, NULL, NULL }
};
-ide_devset_rw_flag(dsc_overlap, IDE_DFLAG_DSC_OVERLAP);
-
-static const struct ide_proc_devset idecd_settings[] = {
- IDE_PROC_DEVSET(dsc_overlap, 0, 1),
- { 0 },
-};
-
static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive)
{
return idecd_proc;
@@ -1922,7 +1838,7 @@ static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive)
static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive)
{
- return idecd_settings;
+ return NULL;
}
#endif
@@ -2022,11 +1938,6 @@ static int ide_cdrom_setup(ide_drive_t *drive)
/* set correct block size */
blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE);
- if (drive->next != drive)
- drive->dev_flags |= IDE_DFLAG_DSC_OVERLAP;
- else
- drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP;
-
if (ide_cdrom_register(drive, nslots)) {
printk(KERN_ERR PFX "%s: %s failed to register device with the"
" cdrom driver.\n", drive->name, __func__);
@@ -2063,7 +1974,6 @@ static void ide_cd_release(struct kref *kref)
kfree(info->toc);
if (devinfo->handle == drive)
unregister_cdrom(devinfo);
- drive->dev_flags &= ~IDE_DFLAG_DSC_OVERLAP;
drive->driver_data = NULL;
blk_queue_prep_rq(drive->queue, NULL);
g->private_data = NULL;