Lines Matching refs:drive
28 static inline int dev_is_idecd(ide_drive_t *drive) in dev_is_idecd() argument
30 return drive->media == ide_cdrom || drive->media == ide_optical; in dev_is_idecd()
37 int ide_check_atapi_device(ide_drive_t *drive, const char *s) in ide_check_atapi_device() argument
39 u16 *id = drive->id; in ide_check_atapi_device()
52 if (drive->media == ide_floppy && device_type == 5 && in ide_check_atapi_device()
60 s, drive->name, protocol); in ide_check_atapi_device()
61 else if ((drive->media == ide_floppy && device_type != 0) || in ide_check_atapi_device()
62 (drive->media == ide_tape && device_type != 1)) in ide_check_atapi_device()
64 s, drive->name, device_type); in ide_check_atapi_device()
67 s, drive->name); in ide_check_atapi_device()
68 else if (drive->media == ide_floppy && drq_type == 3) in ide_check_atapi_device()
70 "supported\n", s, drive->name, drq_type); in ide_check_atapi_device()
73 "bytes\n", s, drive->name, packet_size); in ide_check_atapi_device()
90 int ide_queue_pc_tail(ide_drive_t *drive, struct gendisk *disk, in ide_queue_pc_tail() argument
96 rq = blk_get_request(drive->queue, REQ_OP_DRV_IN, 0); in ide_queue_pc_tail()
101 error = blk_rq_map_kern(drive->queue, rq, buf, bufflen, in ide_queue_pc_tail()
108 if (drive->media == ide_tape) in ide_queue_pc_tail()
118 int ide_do_test_unit_ready(ide_drive_t *drive, struct gendisk *disk) in ide_do_test_unit_ready() argument
125 return ide_queue_pc_tail(drive, disk, &pc, NULL, 0); in ide_do_test_unit_ready()
129 int ide_do_start_stop(ide_drive_t *drive, struct gendisk *disk, int start) in ide_do_start_stop() argument
137 if (drive->media == ide_tape) in ide_do_start_stop()
140 return ide_queue_pc_tail(drive, disk, &pc, NULL, 0); in ide_do_start_stop()
144 int ide_set_media_lock(ide_drive_t *drive, struct gendisk *disk, int on) in ide_set_media_lock() argument
148 if ((drive->dev_flags & IDE_DFLAG_DOORLOCKING) == 0) in ide_set_media_lock()
155 return ide_queue_pc_tail(drive, disk, &pc, NULL, 0); in ide_set_media_lock()
159 void ide_create_request_sense_cmd(ide_drive_t *drive, struct ide_atapi_pc *pc) in ide_create_request_sense_cmd() argument
163 if (drive->media == ide_floppy) { in ide_create_request_sense_cmd()
173 void ide_prep_sense(ide_drive_t *drive, struct request *rq) in ide_prep_sense() argument
175 struct request_sense *sense = &drive->sense_data; in ide_prep_sense()
181 switch (drive->media) { in ide_prep_sense()
197 if (ata_sense_request(rq) || drive->sense_rq_armed) in ide_prep_sense()
200 sense_rq = drive->sense_rq; in ide_prep_sense()
202 sense_rq = blk_mq_alloc_request(drive->queue, REQ_OP_DRV_IN, in ide_prep_sense()
204 drive->sense_rq = sense_rq; in ide_prep_sense()
212 err = blk_rq_map_kern(drive->queue, sense_rq, sense, sense_len, in ide_prep_sense()
217 "buffer\n", drive->name); in ide_prep_sense()
219 drive->sense_rq = NULL; in ide_prep_sense()
229 if (drive->media == ide_tape) in ide_prep_sense()
232 drive->sense_rq_armed = true; in ide_prep_sense()
236 int ide_queue_sense_rq(ide_drive_t *drive, void *special) in ide_queue_sense_rq() argument
238 ide_hwif_t *hwif = drive->hwif; in ide_queue_sense_rq()
245 if (!drive->sense_rq_armed) { in ide_queue_sense_rq()
247 drive->name); in ide_queue_sense_rq()
252 sense_rq = drive->sense_rq; in ide_queue_sense_rq()
254 drive->sense_rq_armed = false; in ide_queue_sense_rq()
256 drive->hwif->rq = NULL; in ide_queue_sense_rq()
258 ide_insert_request_head(drive, sense_rq); in ide_queue_sense_rq()
269 void ide_retry_pc(ide_drive_t *drive) in ide_retry_pc() argument
271 struct request *failed_rq = drive->hwif->rq; in ide_retry_pc()
272 struct request *sense_rq = drive->sense_rq; in ide_retry_pc()
273 struct ide_atapi_pc *pc = &drive->request_sense_pc; in ide_retry_pc()
275 (void)ide_read_error(drive); in ide_retry_pc()
281 if (drive->media == ide_tape) in ide_retry_pc()
282 drive->atapi_flags |= IDE_AFLAG_IGNORE_DSC; in ide_retry_pc()
289 drive->hwif->rq = NULL; in ide_retry_pc()
290 ide_requeue_and_plug(drive, failed_rq); in ide_retry_pc()
291 if (ide_queue_sense_rq(drive, pc)) in ide_retry_pc()
292 ide_complete_rq(drive, BLK_STS_IOERR, blk_rq_bytes(failed_rq)); in ide_retry_pc()
296 int ide_cd_expiry(ide_drive_t *drive) in ide_cd_expiry() argument
298 struct request *rq = drive->hwif->rq; in ide_cd_expiry()
349 void ide_read_bcount_and_ireason(ide_drive_t *drive, u16 *bcount, u8 *ireason) in ide_read_bcount_and_ireason() argument
353 drive->hwif->tp_ops->tf_read(drive, &tf, IDE_VALID_NSECT | in ide_read_bcount_and_ireason()
369 int ide_check_ireason(ide_drive_t *drive, struct request *rq, int len, in ide_check_ireason() argument
372 ide_hwif_t *hwif = drive->hwif; in ide_check_ireason()
380 drive->name, __func__); in ide_check_ireason()
382 if (dev_is_idecd(drive)) in ide_check_ireason()
383 ide_pad_transfer(drive, rw, len); in ide_check_ireason()
385 if (dev_is_idecd(drive)) { in ide_check_ireason()
395 printk(KERN_ERR PFX "%s: CoD != 0 in %s\n", drive->name, in ide_check_ireason()
400 drive->name, __func__, ireason); in ide_check_ireason()
403 if (dev_is_idecd(drive) && ata_pc_request(rq)) in ide_check_ireason()
415 static ide_startstop_t ide_pc_intr(ide_drive_t *drive) in ide_pc_intr() argument
417 struct ide_atapi_pc *pc = drive->pc; in ide_pc_intr()
418 ide_hwif_t *hwif = drive->hwif; in ide_pc_intr()
429 timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD in ide_pc_intr()
438 drive->waiting_for_dma = 0; in ide_pc_intr()
439 rc = hwif->dma_ops->dma_end(drive); in ide_pc_intr()
440 ide_dma_unmap_sg(drive, cmd); in ide_pc_intr()
442 if (rc || (drive->media == ide_tape && (stat & ATA_ERR))) { in ide_pc_intr()
443 if (drive->media == ide_floppy) in ide_pc_intr()
445 drive->name, rq_data_dir(pc->rq) in ide_pc_intr()
450 debug_log("%s: DMA finished\n", drive->name); in ide_pc_intr()
465 if (drive->media == ide_tape && in ide_pc_intr()
471 debug_log("%s: I/O error\n", drive->name); in ide_pc_intr()
473 if (drive->media != ide_tape) in ide_pc_intr()
478 "sense command\n", drive->name); in ide_pc_intr()
479 return ide_do_reset(drive); in ide_pc_intr()
485 ide_retry_pc(drive); in ide_pc_intr()
502 uptodate = drive->pc_callback(drive, dsc); in ide_pc_intr()
505 drive->failed_pc = NULL; in ide_pc_intr()
520 ide_complete_rq(drive, error, blk_rq_bytes(rq)); in ide_pc_intr()
527 "interrupts in DMA mode\n", drive->name); in ide_pc_intr()
528 ide_dma_off(drive); in ide_pc_intr()
529 return ide_do_reset(drive); in ide_pc_intr()
533 ide_read_bcount_and_ireason(drive, &bcount, &ireason); in ide_pc_intr()
535 if (ide_check_ireason(drive, rq, bcount, ireason, write)) in ide_pc_intr()
536 return ide_do_reset(drive); in ide_pc_intr()
539 ide_pio_bytes(drive, cmd, write, done); in ide_pc_intr()
547 ide_pad_transfer(drive, write, bcount); in ide_pc_intr()
553 ide_set_handler(drive, ide_pc_intr, timeout); in ide_pc_intr()
569 static u8 ide_read_ireason(ide_drive_t *drive) in ide_read_ireason() argument
573 drive->hwif->tp_ops->tf_read(drive, &tf, IDE_VALID_NSECT); in ide_read_ireason()
578 static u8 ide_wait_ireason(ide_drive_t *drive, u8 ireason) in ide_wait_ireason() argument
585 "a packet command, retrying\n", drive->name); in ide_wait_ireason()
587 ireason = ide_read_ireason(drive); in ide_wait_ireason()
591 drive->name); in ide_wait_ireason()
600 static int ide_delayed_transfer_pc(ide_drive_t *drive) in ide_delayed_transfer_pc() argument
603 drive->hwif->tp_ops->output_data(drive, NULL, drive->pc->c, 12); in ide_delayed_transfer_pc()
609 static ide_startstop_t ide_transfer_pc(ide_drive_t *drive) in ide_transfer_pc() argument
612 ide_hwif_t *hwif = drive->hwif; in ide_transfer_pc()
620 if (ide_wait_stat(&startstop, drive, ATA_DRQ, ATA_BUSY, WAIT_READY)) { in ide_transfer_pc()
622 "DRQ isn't asserted\n", drive->name); in ide_transfer_pc()
626 if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { in ide_transfer_pc()
627 if (drive->dma) in ide_transfer_pc()
628 drive->waiting_for_dma = 1; in ide_transfer_pc()
631 if (dev_is_idecd(drive)) { in ide_transfer_pc()
640 pc = drive->pc; in ide_transfer_pc()
649 if (drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) { in ide_transfer_pc()
650 timeout = drive->pc_delay; in ide_transfer_pc()
653 timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD in ide_transfer_pc()
658 ireason = ide_read_ireason(drive); in ide_transfer_pc()
659 if (drive->media == ide_tape) in ide_transfer_pc()
660 ireason = ide_wait_ireason(drive, ireason); in ide_transfer_pc()
664 "issuing a packet command\n", drive->name); in ide_transfer_pc()
666 return ide_do_reset(drive); in ide_transfer_pc()
673 ide_set_handler(drive, in ide_transfer_pc()
674 (dev_is_idecd(drive) ? drive->irq_handler in ide_transfer_pc()
679 if ((drive->atapi_flags & IDE_AFLAG_ZIP_DRIVE) == 0) in ide_transfer_pc()
680 hwif->tp_ops->output_data(drive, NULL, scsi_req(rq)->cmd, cmd_len); in ide_transfer_pc()
683 if (dev_is_idecd(drive)) { in ide_transfer_pc()
684 if (drive->dma) in ide_transfer_pc()
685 hwif->dma_ops->dma_start(drive); in ide_transfer_pc()
689 hwif->dma_ops->dma_start(drive); in ide_transfer_pc()
696 ide_startstop_t ide_issue_pc(ide_drive_t *drive, struct ide_cmd *cmd) in ide_issue_pc() argument
699 ide_hwif_t *hwif = drive->hwif; in ide_issue_pc()
705 u8 drq_int = !!(drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT); in ide_issue_pc()
707 if (dev_is_idecd(drive)) { in ide_issue_pc()
713 if (drive->dma) in ide_issue_pc()
714 drive->dma = !ide_dma_prepare(drive, cmd); in ide_issue_pc()
716 pc = drive->pc; in ide_issue_pc()
720 bcount = ((drive->media == ide_tape) ? bytes in ide_issue_pc()
729 ide_dma_off(drive); in ide_issue_pc()
733 drive->dma = !ide_dma_prepare(drive, cmd); in ide_issue_pc()
735 if (!drive->dma) in ide_issue_pc()
738 timeout = (drive->media == ide_floppy) ? WAIT_FLOPPY_CMD in ide_issue_pc()
742 ide_init_packet_cmd(cmd, valid_tf, bcount, drive->dma); in ide_issue_pc()
744 (void)do_rw_taskfile(drive, cmd); in ide_issue_pc()
747 if (drive->dma) in ide_issue_pc()
748 drive->waiting_for_dma = 0; in ide_issue_pc()
752 ide_execute_command(drive, cmd, ide_transfer_pc, timeout); in ide_issue_pc()
754 return drq_int ? ide_started : ide_transfer_pc(drive); in ide_issue_pc()