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author | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-10-10 22:39:37 +0200 |
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committer | Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> | 2008-10-10 22:39:37 +0200 |
commit | 7645c1514c7d34ebdf3ea0e8ee3a935c08abceb2 (patch) | |
tree | 98e51341f3f1a259ca89baf7d2e83b7357dc8a22 /drivers | |
parent | ide: add ide_init_pc() helper (diff) | |
download | linux-7645c1514c7d34ebdf3ea0e8ee3a935c08abceb2.tar.xz linux-7645c1514c7d34ebdf3ea0e8ee3a935c08abceb2.zip |
ide: add ide_queue_pc_head() helper
* Move REQ_IDETAPE_* enums to <linux/ide.h>.
* Add ide_queue_pc_head() and convert ide-{floppy,tape}.c to use it
instead of ide*_queue_pc_head().
* Remove no longer used ide*_queue_pc_head().
There should be no functional changes caused by this patch.
Acked-by: Borislav Petkov <petkovbb@gmail.com>
Acked-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/ide/ide-atapi.c | 20 | ||||
-rw-r--r-- | drivers/ide/ide-floppy.c | 21 | ||||
-rw-r--r-- | drivers/ide/ide-tape.c | 36 |
3 files changed, 22 insertions, 55 deletions
diff --git a/drivers/ide/ide-atapi.c b/drivers/ide/ide-atapi.c index 8f0842ce77f5..da71bfce92e8 100644 --- a/drivers/ide/ide-atapi.c +++ b/drivers/ide/ide-atapi.c @@ -119,6 +119,26 @@ void ide_init_pc(struct ide_atapi_pc *pc) } EXPORT_SYMBOL_GPL(ide_init_pc); +/* + * Generate a new packet command request in front of the request queue, before + * the current request, so that it will be processed immediately, on the next + * pass through the driver. + */ +void ide_queue_pc_head(ide_drive_t *drive, struct gendisk *disk, + struct ide_atapi_pc *pc, struct request *rq) +{ + blk_rq_init(NULL, rq); + rq->cmd_type = REQ_TYPE_SPECIAL; + rq->cmd_flags |= REQ_PREEMPT; + rq->buffer = (char *)pc; + rq->rq_disk = disk; + memcpy(rq->cmd, pc->c, 12); + if (drive->media == ide_tape) + rq->cmd[13] = REQ_IDETAPE_PC1; + ide_do_drive_cmd(drive, rq); +} +EXPORT_SYMBOL_GPL(ide_queue_pc_head); + /* TODO: unify the code thus making some arguments go away */ ide_startstop_t ide_pc_intr(ide_drive_t *drive, struct ide_atapi_pc *pc, ide_handler_t *handler, unsigned int timeout, ide_expiry_t *expiry, diff --git a/drivers/ide/ide-floppy.c b/drivers/ide/ide-floppy.c index e04eaa49a8bf..ddce28e77a4e 100644 --- a/drivers/ide/ide-floppy.c +++ b/drivers/ide/ide-floppy.c @@ -212,25 +212,6 @@ static void idefloppy_update_buffers(ide_drive_t *drive, idefloppy_end_request(drive, 1, 0); } -/* - * Generate a new packet command request in front of the request queue, before - * the current request so that it will be processed immediately, on the next - * pass through the driver. - */ -static void idefloppy_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc, - struct request *rq) -{ - struct ide_floppy_obj *floppy = drive->driver_data; - - blk_rq_init(NULL, rq); - rq->buffer = (char *) pc; - rq->cmd_type = REQ_TYPE_SPECIAL; - rq->cmd_flags |= REQ_PREEMPT; - rq->rq_disk = floppy->disk; - memcpy(rq->cmd, pc->c, 12); - ide_do_drive_cmd(drive, rq); -} - static void ide_floppy_callback(ide_drive_t *drive) { idefloppy_floppy_t *floppy = drive->driver_data; @@ -288,7 +269,7 @@ static void idefloppy_retry_pc(ide_drive_t *drive) (void)ide_read_error(drive); idefloppy_create_request_sense_cmd(pc); - idefloppy_queue_pc_head(drive, pc, rq); + ide_queue_pc_head(drive, floppy->disk, pc, rq); } /* The usual interrupt handler called during a packet command. */ diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index 5c879fbcca87..7103b98eb53a 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -159,20 +159,6 @@ struct idetape_bh { #define IDETAPE_LU_RETENSION_MASK 2 #define IDETAPE_LU_EOT_MASK 4 -/* - * Special requests for our block device strategy routine. - * - * In order to service a character device command, we add special requests to - * the tail of our block device request queue and wait for their completion. - */ - -enum { - REQ_IDETAPE_PC1 = (1 << 0), /* packet command (first stage) */ - REQ_IDETAPE_PC2 = (1 << 1), /* packet command (second stage) */ - REQ_IDETAPE_READ = (1 << 2), - REQ_IDETAPE_WRITE = (1 << 3), -}; - /* Error codes returned in rq->errors to the higher part of the driver. */ #define IDETAPE_ERROR_GENERAL 101 #define IDETAPE_ERROR_FILEMARK 102 @@ -613,26 +599,6 @@ static void idetape_create_request_sense_cmd(struct ide_atapi_pc *pc) } /* - * Generate a new packet command request in front of the request queue, before - * the current request, so that it will be processed immediately, on the next - * pass through the driver. - */ -static void idetape_queue_pc_head(ide_drive_t *drive, struct ide_atapi_pc *pc, - struct request *rq) -{ - struct ide_tape_obj *tape = drive->driver_data; - - blk_rq_init(NULL, rq); - rq->cmd_type = REQ_TYPE_SPECIAL; - rq->cmd_flags |= REQ_PREEMPT; - rq->buffer = (char *) pc; - rq->rq_disk = tape->disk; - memcpy(rq->cmd, pc->c, 12); - rq->cmd[13] = REQ_IDETAPE_PC1; - ide_do_drive_cmd(drive, rq); -} - -/* * idetape_retry_pc is called when an error was detected during the * last packet command. We queue a request sense packet command in * the head of the request list. @@ -646,7 +612,7 @@ static void idetape_retry_pc(ide_drive_t *drive) (void)ide_read_error(drive); idetape_create_request_sense_cmd(pc); set_bit(IDE_AFLAG_IGNORE_DSC, &drive->atapi_flags); - idetape_queue_pc_head(drive, pc, rq); + ide_queue_pc_head(drive, tape->disk, pc, rq); } /* |