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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.c99
1 files changed, 16 insertions, 83 deletions
diff --git a/drivers/ide/ide-cd.c b/drivers/ide/ide-cd.c
index 5daa4dd1b01..1a7410f8824 100644
--- a/drivers/ide/ide-cd.c
+++ b/drivers/ide/ide-cd.c
@@ -53,14 +53,6 @@
#include "ide-cd.h"
-#define IDECD_DEBUG_LOG 1
-
-#if IDECD_DEBUG_LOG
-#define ide_debug_log(lvl, fmt, args...) __ide_debug_log(lvl, fmt, args)
-#else
-#define ide_debug_log(lvl, fmt, args...) do {} while (0)
-#endif
-
static DEFINE_MUTEX(idecd_ref_mutex);
static void ide_cd_release(struct kref *);
@@ -519,37 +511,8 @@ end_request:
return 1;
}
-static int cdrom_timer_expiry(ide_drive_t *drive)
-{
- struct request *rq = HWGROUP(drive)->rq;
- unsigned long wait = 0;
-
- ide_debug_log(IDE_DBG_RQ, "Call %s: rq->cmd[0]: 0x%x\n", __func__,
- rq->cmd[0]);
-
- /*
- * Some commands are *slow* and normally take a long time to complete.
- * Usually we can use the ATAPI "disconnect" to bypass this, but not all
- * commands/drives support that. Let ide_timer_expiry keep polling us
- * for these.
- */
- switch (rq->cmd[0]) {
- case GPCMD_BLANK:
- case GPCMD_FORMAT_UNIT:
- case GPCMD_RESERVE_RZONE_TRACK:
- case GPCMD_CLOSE_TRACK:
- case GPCMD_FLUSH_CACHE:
- wait = ATAPI_WAIT_PC;
- break;
- default:
- if (!(rq->cmd_flags & REQ_QUIET))
- printk(KERN_INFO PFX "cmd 0x%x timed out\n",
- rq->cmd[0]);
- wait = 0;
- break;
- }
- return wait;
-}
+static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *);
+static ide_startstop_t cdrom_newpc_intr(ide_drive_t *);
/*
* Set up the device registers for transferring a packet command on DEV,
@@ -559,11 +522,13 @@ static int cdrom_timer_expiry(ide_drive_t *drive)
* called when the interrupt from the drive arrives. Otherwise, HANDLER
* will be called immediately after the drive is prepared for the transfer.
*/
-static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive,
- int xferlen,
- ide_handler_t *handler)
+static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
+ struct request *rq = hwif->hwgroup->rq;
+ int xferlen;
+
+ xferlen = ide_cd_get_xferlen(rq);
ide_debug_log(IDE_DBG_PC, "Call %s, xferlen: %d\n", __func__, xferlen);
@@ -581,13 +546,14 @@ static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive,
drive->waiting_for_dma = 0;
/* packet command */
- ide_execute_command(drive, ATA_CMD_PACKET, handler,
- ATAPI_WAIT_PC, cdrom_timer_expiry);
+ ide_execute_command(drive, ATA_CMD_PACKET,
+ cdrom_transfer_packet_command,
+ ATAPI_WAIT_PC, ide_cd_expiry);
return ide_started;
} else {
ide_execute_pkt_cmd(drive);
- return (*handler) (drive);
+ return cdrom_transfer_packet_command(drive);
}
}
@@ -598,11 +564,10 @@ static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive,
* there's data ready.
*/
#define ATAPI_MIN_CDB_BYTES 12
-static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive,
- struct request *rq,
- ide_handler_t *handler)
+static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive)
{
ide_hwif_t *hwif = drive->hwif;
+ struct request *rq = hwif->hwgroup->rq;
int cmd_len;
ide_startstop_t startstop;
@@ -629,7 +594,7 @@ static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive,
}
/* arm the interrupt handler */
- ide_set_handler(drive, handler, rq->timeout, cdrom_timer_expiry);
+ ide_set_handler(drive, cdrom_newpc_intr, rq->timeout, ide_cd_expiry);
/* ATAPI commands get padded out to 12 bytes minimum */
cmd_len = COMMAND_SIZE(rq->cmd[0]);
@@ -717,8 +682,6 @@ static int ide_cd_check_transfer_size(ide_drive_t *drive, int len)
return 1;
}
-static ide_startstop_t cdrom_newpc_intr(ide_drive_t *);
-
static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive,
struct request *rq)
{
@@ -761,20 +724,6 @@ static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive,
}
/*
- * Routine to send a read/write packet command to the drive. This is usually
- * called directly from cdrom_start_{read,write}(). However, for drq_interrupt
- * devices, it is called from an interrupt when the drive is ready to accept
- * the command.
- */
-static ide_startstop_t cdrom_start_rw_cont(ide_drive_t *drive)
-{
- struct request *rq = drive->hwif->hwgroup->rq;
-
- /* send the command to the drive and return */
- return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_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.
*/
@@ -1096,7 +1045,7 @@ static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
} else {
timeout = ATAPI_WAIT_PC;
if (!blk_fs_request(rq))
- expiry = cdrom_timer_expiry;
+ expiry = ide_cd_expiry;
}
ide_set_handler(drive, cdrom_newpc_intr, timeout, expiry);
@@ -1163,13 +1112,6 @@ static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
return ide_started;
}
-static ide_startstop_t cdrom_do_newpc_cont(ide_drive_t *drive)
-{
- struct request *rq = HWGROUP(drive)->rq;
-
- return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr);
-}
-
static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
{
@@ -1214,18 +1156,12 @@ 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)
{
- ide_handler_t *fn;
- int xferlen;
-
ide_debug_log(IDE_DBG_RQ, "Call %s, rq->cmd[0]: 0x%x, "
"rq->cmd_type: 0x%x, block: %llu\n",
__func__, rq->cmd[0], rq->cmd_type,
(unsigned long long)block);
if (blk_fs_request(rq)) {
- xferlen = 32768;
- fn = cdrom_start_rw_cont;
-
if (cdrom_start_rw(drive, rq) == ide_stopped)
return ide_stopped;
@@ -1233,9 +1169,6 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
return ide_stopped;
} else if (blk_sense_request(rq) || blk_pc_request(rq) ||
rq->cmd_type == REQ_TYPE_ATA_PC) {
- xferlen = rq->data_len;
- fn = cdrom_do_newpc_cont;
-
if (!rq->timeout)
rq->timeout = ATAPI_WAIT_PC;
@@ -1250,7 +1183,7 @@ static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
return ide_stopped;
}
- return cdrom_start_packet_command(drive, xferlen, fn);
+ return cdrom_start_packet_command(drive);
}
/*