Lines Matching refs:drive
27 static inline int dev_is_idecd(ide_drive_t *drive) in dev_is_idecd() argument
29 return drive->media == ide_cdrom || drive->media == ide_optical; in dev_is_idecd()
36 int ide_check_atapi_device(ide_drive_t *drive, const char *s) in ide_check_atapi_device() argument
38 u16 *id = drive->id; in ide_check_atapi_device()
51 if (drive->media == ide_floppy && device_type == 5 && in ide_check_atapi_device()
59 s, drive->name, protocol); in ide_check_atapi_device()
60 else if ((drive->media == ide_floppy && device_type != 0) || in ide_check_atapi_device()
61 (drive->media == ide_tape && device_type != 1)) in ide_check_atapi_device()
63 s, drive->name, device_type); in ide_check_atapi_device()
66 s, drive->name); in ide_check_atapi_device()
67 else if (drive->media == ide_floppy && drq_type == 3) in ide_check_atapi_device()
69 "supported\n", s, drive->name, drq_type); in ide_check_atapi_device()
72 "bytes\n", s, drive->name, packet_size); in ide_check_atapi_device()
89 int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk, in ide_queue_pc_tail() argument
95 rq = blk_get_request(drive->queue, READ, __GFP_RECLAIM); in ide_queue_pc_tail()
100 error = blk_rq_map_kern(drive->queue, rq, buf, bufflen, in ide_queue_pc_tail()
107 if (drive->media == ide_tape) in ide_queue_pc_tail()
109 error = blk_execute_rq(drive->queue, disk, rq, 0); in ide_queue_pc_tail()
116 int ide_do_test_unit_ready(ide_drive_t *drive, struct gendisk *disk) in ide_do_test_unit_ready() argument
123 return ide_queue_pc_tail(drive, disk, &pc, NULL, 0); in ide_do_test_unit_ready()
127 int ide_do_start_stop(ide_drive_t *drive, struct gendisk *disk, int start) in ide_do_start_stop() argument
135 if (drive->media == ide_tape) in ide_do_start_stop()
138 return ide_queue_pc_tail(drive, disk, &pc, NULL, 0); in ide_do_start_stop()
142 int ide_set_media_lock(ide_drive_t *drive, struct gendisk *disk, int on) in ide_set_media_lock() argument
146 if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) == 0) in ide_set_media_lock()
153 return ide_queue_pc_tail(drive, disk, &pc, NULL, 0); in ide_set_media_lock()
157 void ide_create_request_sense_cmd(ide_drive_t *drive, struct ide_atapi_pc *pc) in ide_create_request_sense_cmd() argument
161 if (drive->media == ide_floppy) { in ide_create_request_sense_cmd()
171 void ide_prep_sense(ide_drive_t *drive, struct request *rq) in ide_prep_sense() argument
173 struct request_sense *sense = &drive->sense_data; in ide_prep_sense()
174 struct request *sense_rq = &drive->sense_rq; in ide_prep_sense()
178 switch (drive->media) { in ide_prep_sense()
194 if (rq->cmd_type == REQ_TYPE_ATA_SENSE || drive->sense_rq_armed) in ide_prep_sense()
201 err = blk_rq_map_kern(drive->queue, sense_rq, sense, sense_len, in ide_prep_sense()
206 "buffer\n", drive->name); in ide_prep_sense()
216 if (drive->media == ide_tape) in ide_prep_sense()
219 drive->sense_rq_armed = true; in ide_prep_sense()
223 int ide_queue_sense_rq(ide_drive_t *drive, void *special) in ide_queue_sense_rq() argument
226 if (!drive->sense_rq_armed) { in ide_queue_sense_rq()
228 drive->name); in ide_queue_sense_rq()
232 drive->sense_rq.special = special; in ide_queue_sense_rq()
233 drive->sense_rq_armed = false; in ide_queue_sense_rq()
235 drive->hwif->rq = NULL; in ide_queue_sense_rq()
237 elv_add_request(drive->queue, &drive->sense_rq, ELEVATOR_INSERT_FRONT); in ide_queue_sense_rq()
247 void ide_retry_pc(ide_drive_t *drive) in ide_retry_pc() argument
249 struct request *failed_rq = drive->hwif->rq; in ide_retry_pc()
250 struct request *sense_rq = &drive->sense_rq; in ide_retry_pc()
251 struct ide_atapi_pc *pc = &drive->request_sense_pc; in ide_retry_pc()
253 (void)ide_read_error(drive); in ide_retry_pc()
259 if (drive->media == ide_tape) in ide_retry_pc()
260 drive->atapi_flags |= IDE_AFLAG_IGNORE_DSC; in ide_retry_pc()
267 drive->hwif->rq = NULL; in ide_retry_pc()
268 ide_requeue_and_plug(drive, failed_rq); in ide_retry_pc()
269 if (ide_queue_sense_rq(drive, pc)) { in ide_retry_pc()
271 ide_complete_rq(drive, -EIO, blk_rq_bytes(failed_rq)); in ide_retry_pc()
276 int ide_cd_expiry(ide_drive_t *drive) in ide_cd_expiry() argument
278 struct request *rq = drive->hwif->rq; in ide_cd_expiry()
323 void ide_read_bcount_and_ireason(ide_drive_t *drive, u16 *bcount, u8 *ireason) in ide_read_bcount_and_ireason() argument
327 drive->hwif->tp_ops->tf_read(drive, &tf, IDE_VALID_NSECT | in ide_read_bcount_and_ireason()
343 int ide_check_ireason(ide_drive_t *drive, struct request *rq, int len, in ide_check_ireason() argument
346 ide_hwif_t *hwif = drive->hwif; in ide_check_ireason()
354 drive->name, __func__); in ide_check_ireason()
356 if (dev_is_idecd(drive)) in ide_check_ireason()
357 ide_pad_transfer(drive, rw, len); in ide_check_ireason()
359 if (dev_is_idecd(drive)) { in ide_check_ireason()
369 printk(KERN_ERR PFX "%s: CoD != 0 in %s\n", drive->name, in ide_check_ireason()
374 drive->name, __func__, ireason); in ide_check_ireason()
377 if (dev_is_idecd(drive) && rq->cmd_type == REQ_TYPE_ATA_PC) in ide_check_ireason()
389 static ide_startstop_t ide_pc_intr(ide_drive_t *drive) in ide_pc_intr() argument
391 struct ide_atapi_pc *pc = drive->pc; in ide_pc_intr()
392 ide_hwif_t *hwif = drive->hwif; in ide_pc_intr()
403 timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD in ide_pc_intr()
412 drive->waiting_for_dma = 0; in ide_pc_intr()
413 rc = hwif->dma_ops->dma_end(drive); in ide_pc_intr()
414 ide_dma_unmap_sg(drive, cmd); in ide_pc_intr()
416 if (rc || (drive->media == ide_tape && (stat & ATA_ERR))) { in ide_pc_intr()
417 if (drive->media == ide_floppy) in ide_pc_intr()
419 drive->name, rq_data_dir(pc->rq) in ide_pc_intr()
424 debug_log("%s: DMA finished\n", drive->name); in ide_pc_intr()
438 if (drive->media == ide_tape && in ide_pc_intr()
444 debug_log("%s: I/O error\n", drive->name); in ide_pc_intr()
446 if (drive->media != ide_tape) in ide_pc_intr()
451 "sense command\n", drive->name); in ide_pc_intr()
452 return ide_do_reset(drive); in ide_pc_intr()
458 ide_retry_pc(drive); in ide_pc_intr()
475 uptodate = drive->pc_callback(drive, dsc); in ide_pc_intr()
478 drive->failed_pc = NULL; in ide_pc_intr()
493 ide_complete_rq(drive, error, blk_rq_bytes(rq)); in ide_pc_intr()
500 "interrupts in DMA mode\n", drive->name); in ide_pc_intr()
501 ide_dma_off(drive); in ide_pc_intr()
502 return ide_do_reset(drive); in ide_pc_intr()
506 ide_read_bcount_and_ireason(drive, &bcount, &ireason); in ide_pc_intr()
508 if (ide_check_ireason(drive, rq, bcount, ireason, write)) in ide_pc_intr()
509 return ide_do_reset(drive); in ide_pc_intr()
512 ide_pio_bytes(drive, cmd, write, done); in ide_pc_intr()
520 ide_pad_transfer(drive, write, bcount); in ide_pc_intr()
526 ide_set_handler(drive, ide_pc_intr, timeout); in ide_pc_intr()
542 static u8 ide_read_ireason(ide_drive_t *drive) in ide_read_ireason() argument
546 drive->hwif->tp_ops->tf_read(drive, &tf, IDE_VALID_NSECT); in ide_read_ireason()
551 static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason) in ide_wait_ireason() argument
558 "a packet command, retrying\n", drive->name); in ide_wait_ireason()
560 ireason = ide_read_ireason(drive); in ide_wait_ireason()
564 drive->name); in ide_wait_ireason()
573 static int ide_delayed_transfer_pc(ide_drive_t *drive) in ide_delayed_transfer_pc() argument
576 drive->hwif->tp_ops->output_data(drive, NULL, drive->pc->c, 12); in ide_delayed_transfer_pc()
582 static ide_startstop_t ide_transfer_pc(ide_drive_t *drive) in ide_transfer_pc() argument
585 ide_hwif_t *hwif = drive->hwif; in ide_transfer_pc()
593 if (ide_wait_stat(&startstop, drive, ATA_DRQ, ATA_BUSY, WAIT_READY)) { in ide_transfer_pc()
595 "DRQ isn't asserted\n", drive->name); in ide_transfer_pc()
599 if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { in ide_transfer_pc()
600 if (drive->dma) in ide_transfer_pc()
601 drive->waiting_for_dma = 1; in ide_transfer_pc()
604 if (dev_is_idecd(drive)) { in ide_transfer_pc()
613 pc = drive->pc; in ide_transfer_pc()
622 if (drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) { in ide_transfer_pc()
623 timeout = drive->pc_delay; in ide_transfer_pc()
626 timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD in ide_transfer_pc()
631 ireason = ide_read_ireason(drive); in ide_transfer_pc()
632 if (drive->media == ide_tape) in ide_transfer_pc()
633 ireason = ide_wait_ireason(drive, ireason); in ide_transfer_pc()
637 "issuing a packet command\n", drive->name); in ide_transfer_pc()
639 return ide_do_reset(drive); in ide_transfer_pc()
646 ide_set_handler(drive, in ide_transfer_pc()
647 (dev_is_idecd(drive) ? drive->irq_handler in ide_transfer_pc()
652 if ((drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) == 0) in ide_transfer_pc()
653 hwif->tp_ops->output_data(drive, NULL, rq->cmd, cmd_len); in ide_transfer_pc()
656 if (dev_is_idecd(drive)) { in ide_transfer_pc()
657 if (drive->dma) in ide_transfer_pc()
658 hwif->dma_ops->dma_start(drive); in ide_transfer_pc()
662 hwif->dma_ops->dma_start(drive); in ide_transfer_pc()
669 ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd) in ide_issue_pc() argument
672 ide_hwif_t *hwif = drive->hwif; in ide_issue_pc()
678 u8 drq_int = !!(drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT); in ide_issue_pc()
680 if (dev_is_idecd(drive)) { in ide_issue_pc()
686 if (drive->dma) in ide_issue_pc()
687 drive->dma = !ide_dma_prepare(drive, cmd); in ide_issue_pc()
689 pc = drive->pc; in ide_issue_pc()
693 bcount = ((drive->media == ide_tape) ? bytes in ide_issue_pc()
702 ide_dma_off(drive); in ide_issue_pc()
706 drive->dma = !ide_dma_prepare(drive, cmd); in ide_issue_pc()
708 if (!drive->dma) in ide_issue_pc()
711 timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD in ide_issue_pc()
715 ide_init_packet_cmd(cmd, valid_tf, bcount, drive->dma); in ide_issue_pc()
717 (void)do_rw_taskfile(drive, cmd); in ide_issue_pc()
720 if (drive->dma) in ide_issue_pc()
721 drive->waiting_for_dma = 0; in ide_issue_pc()
725 ide_execute_command(drive, cmd, ide_transfer_pc, timeout); in ide_issue_pc()
727 return drq_int ? ide_started : ide_transfer_pc(drive); in ide_issue_pc()