4 * Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov>
5 * Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org>
6 * Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de>
7 * Copyright (C) 2005, 2007-2009 Bartlomiej Zolnierkiewicz
9 * May be copied or modified under the terms of the GNU General Public
10 * License. See linux/COPYING for more information.
12 * See Documentation/cdrom/ide-cd for usage information.
14 * Suggestions are welcome. Patches that work are more welcome though. ;-)
17 * Mt. Fuji (SFF8090 version 4) and ATAPI (SFF-8020i rev 2.6) standards.
19 * For historical changelog please see:
20 * Documentation/ide/ChangeLog.ide-cd.1994-2004
23 #define DRV_NAME "ide-cd"
24 #define PFX DRV_NAME ": "
26 #define IDECD_VERSION "5.00"
28 #include <linux/module.h>
29 #include <linux/types.h>
30 #include <linux/kernel.h>
31 #include <linux/sched/task_stack.h>
32 #include <linux/delay.h>
33 #include <linux/timer.h>
34 #include <linux/seq_file.h>
35 #include <linux/slab.h>
36 #include <linux/interrupt.h>
37 #include <linux/errno.h>
38 #include <linux/cdrom.h>
39 #include <linux/ide.h>
40 #include <linux/completion.h>
41 #include <linux/mutex.h>
42 #include <linux/bcd.h>
44 /* For SCSI -> ATAPI command conversion */
45 #include <scsi/scsi.h>
48 #include <asm/byteorder.h>
49 #include <linux/uaccess.h>
50 #include <asm/unaligned.h>
54 static DEFINE_MUTEX(ide_cd_mutex
);
55 static DEFINE_MUTEX(idecd_ref_mutex
);
57 static void ide_cd_release(struct device
*);
59 static struct cdrom_info
*ide_cd_get(struct gendisk
*disk
)
61 struct cdrom_info
*cd
= NULL
;
63 mutex_lock(&idecd_ref_mutex
);
64 cd
= ide_drv_g(disk
, cdrom_info
);
66 if (ide_device_get(cd
->drive
))
72 mutex_unlock(&idecd_ref_mutex
);
76 static void ide_cd_put(struct cdrom_info
*cd
)
78 ide_drive_t
*drive
= cd
->drive
;
80 mutex_lock(&idecd_ref_mutex
);
82 ide_device_put(drive
);
83 mutex_unlock(&idecd_ref_mutex
);
87 * Generic packet command support and error handling routines.
90 /* Mark that we've seen a media change and invalidate our internal buffers. */
91 static void cdrom_saw_media_change(ide_drive_t
*drive
)
93 drive
->dev_flags
|= IDE_DFLAG_MEDIA_CHANGED
;
94 drive
->atapi_flags
&= ~IDE_AFLAG_TOC_VALID
;
97 static int cdrom_log_sense(ide_drive_t
*drive
, struct request
*rq
)
99 struct request_sense
*sense
= &drive
->sense_data
;
102 if (!sense
|| !rq
|| (rq
->rq_flags
& RQF_QUIET
))
105 ide_debug_log(IDE_DBG_SENSE
, "sense_key: 0x%x", sense
->sense_key
);
107 switch (sense
->sense_key
) {
109 case RECOVERED_ERROR
:
113 * don't care about tray state messages for e.g. capacity
114 * commands or in-progress or becoming ready
116 if (sense
->asc
== 0x3a || sense
->asc
== 0x04)
120 case ILLEGAL_REQUEST
:
122 * don't log START_STOP unit with LoEj set, since we cannot
123 * reliably check if drive can auto-close
125 if (scsi_req(rq
)->cmd
[0] == GPCMD_START_STOP_UNIT
&& sense
->asc
== 0x24)
131 * Make good and sure we've seen this potential media change.
132 * Some drives (i.e. Creative) fail to present the correct sense
133 * key in the error register.
135 cdrom_saw_media_change(drive
);
144 static void cdrom_analyze_sense_data(ide_drive_t
*drive
,
145 struct request
*failed_command
)
147 struct request_sense
*sense
= &drive
->sense_data
;
148 struct cdrom_info
*info
= drive
->driver_data
;
149 unsigned long sector
;
150 unsigned long bio_sectors
;
152 ide_debug_log(IDE_DBG_SENSE
, "error_code: 0x%x, sense_key: 0x%x",
153 sense
->error_code
, sense
->sense_key
);
156 ide_debug_log(IDE_DBG_SENSE
, "failed cmd: 0x%x",
157 failed_command
->cmd
[0]);
159 if (!cdrom_log_sense(drive
, failed_command
))
163 * If a read toc is executed for a CD-R or CD-RW medium where the first
164 * toc has not been recorded yet, it will fail with 05/24/00 (which is a
167 if (failed_command
&& scsi_req(failed_command
)->cmd
[0] == GPCMD_READ_TOC_PMA_ATIP
)
168 if (sense
->sense_key
== 0x05 && sense
->asc
== 0x24)
172 if (sense
->error_code
== 0x70) {
173 switch (sense
->sense_key
) {
175 case VOLUME_OVERFLOW
:
176 case ILLEGAL_REQUEST
:
179 if (failed_command
== NULL
||
180 blk_rq_is_passthrough(failed_command
))
182 sector
= (sense
->information
[0] << 24) |
183 (sense
->information
[1] << 16) |
184 (sense
->information
[2] << 8) |
185 (sense
->information
[3]);
187 if (queue_logical_block_size(drive
->queue
) == 2048)
188 /* device sector size is 2K */
191 bio_sectors
= max(bio_sectors(failed_command
->bio
), 4U);
192 sector
&= ~(bio_sectors
- 1);
195 * The SCSI specification allows for the value
196 * returned by READ CAPACITY to be up to 75 2K
197 * sectors past the last readable block.
198 * Therefore, if we hit a medium error within the
199 * last 75 2K sectors, we decrease the saved size
202 if (sector
< get_capacity(info
->disk
) &&
203 drive
->probed_capacity
- sector
< 4 * 75)
204 set_capacity(info
->disk
, sector
);
208 ide_cd_log_error(drive
->name
, failed_command
, sense
);
211 static void ide_cd_complete_failed_rq(ide_drive_t
*drive
, struct request
*rq
)
214 * For ATA_PRIV_SENSE, "rq->special" points to the original
215 * failed request. Also, the sense data should be read
216 * directly from rq which might be different from the original
217 * sense buffer if it got copied during mapping.
219 struct request
*failed
= (struct request
*)rq
->special
;
220 void *sense
= bio_data(rq
->bio
);
224 * Sense is always read into drive->sense_data, copy back to the
227 memcpy(scsi_req(failed
)->sense
, sense
, 18);
228 scsi_req(failed
)->sense_len
= scsi_req(rq
)->sense_len
;
229 cdrom_analyze_sense_data(drive
, failed
);
231 if (ide_end_rq(drive
, failed
, -EIO
, blk_rq_bytes(failed
)))
234 cdrom_analyze_sense_data(drive
, NULL
);
239 * Allow the drive 5 seconds to recover; some devices will return NOT_READY
240 * while flushing data from cache.
242 * returns: 0 failed (write timeout expired)
245 static int ide_cd_breathe(ide_drive_t
*drive
, struct request
*rq
)
248 struct cdrom_info
*info
= drive
->driver_data
;
251 info
->write_timeout
= jiffies
+ ATAPI_WAIT_WRITE_BUSY
;
255 if (time_after(jiffies
, info
->write_timeout
))
261 blk_delay_queue(drive
->queue
, 1);
268 * 0: if the request should be continued.
269 * 1: if the request will be going through error recovery.
270 * 2: if the request should be ended.
272 static int cdrom_decode_status(ide_drive_t
*drive
, u8 stat
)
274 ide_hwif_t
*hwif
= drive
->hwif
;
275 struct request
*rq
= hwif
->rq
;
276 int err
, sense_key
, do_end_request
= 0;
278 /* get the IDE error register */
279 err
= ide_read_error(drive
);
280 sense_key
= err
>> 4;
282 ide_debug_log(IDE_DBG_RQ
, "cmd: 0x%x, rq->cmd_type: 0x%x, err: 0x%x, "
284 rq
->cmd
[0], rq
->cmd_type
, err
, stat
);
286 if (ata_sense_request(rq
)) {
288 * We got an error trying to get sense info from the drive
289 * (probably while trying to recover from a former error).
292 rq
->rq_flags
|= RQF_FAILED
;
296 /* if we have an error, pass CHECK_CONDITION as the SCSI status byte */
297 if (blk_rq_is_scsi(rq
) && !rq
->errors
)
298 rq
->errors
= SAM_STAT_CHECK_CONDITION
;
300 if (blk_noretry_request(rq
))
305 if (req_op(rq
) == REQ_OP_WRITE
) {
306 if (ide_cd_breathe(drive
, rq
))
309 cdrom_saw_media_change(drive
);
311 if (!blk_rq_is_passthrough(rq
) &&
312 !(rq
->rq_flags
& RQF_QUIET
))
313 printk(KERN_ERR PFX
"%s: tray open\n",
319 cdrom_saw_media_change(drive
);
321 if (blk_rq_is_passthrough(rq
))
325 * Arrange to retry the request but be sure to give up if we've
326 * retried too many times.
328 if (++rq
->errors
> ERROR_MAX
)
331 case ILLEGAL_REQUEST
:
333 * Don't print error message for this condition -- SFF8090i
334 * indicates that 5/24/00 is the correct response to a request
335 * to close the tray if the drive doesn't have that capability.
337 * cdrom_log_sense() knows this!
339 if (scsi_req(rq
)->cmd
[0] == GPCMD_START_STOP_UNIT
)
344 * No point in retrying after an illegal request or data
347 if (!(rq
->rq_flags
& RQF_QUIET
))
348 ide_dump_status(drive
, "command error", stat
);
353 * No point in re-trying a zillion times on a bad sector.
354 * If we got here the error is not correctable.
356 if (!(rq
->rq_flags
& RQF_QUIET
))
357 ide_dump_status(drive
, "media error "
358 "(bad sector)", stat
);
362 /* disk appears blank? */
363 if (!(rq
->rq_flags
& RQF_QUIET
))
364 ide_dump_status(drive
, "media error (blank)",
369 if (blk_rq_is_passthrough(rq
))
371 if (err
& ~ATA_ABORTED
) {
372 /* go to the default handler for other errors */
373 ide_error(drive
, "cdrom_decode_status", stat
);
375 } else if (++rq
->errors
> ERROR_MAX
)
376 /* we've racked up too many retries, abort */
380 if (blk_rq_is_passthrough(rq
)) {
381 rq
->rq_flags
|= RQF_FAILED
;
386 * End a request through request sense analysis when we have sense data.
387 * We need this in order to perform end of media processing.
392 /* if we got a CHECK_CONDITION status, queue a request sense command */
394 return ide_queue_sense_rq(drive
, NULL
) ? 2 : 1;
398 if (stat
& ATA_ERR
) {
400 return ide_queue_sense_rq(drive
, rq
) ? 2 : 1;
405 static void ide_cd_request_sense_fixup(ide_drive_t
*drive
, struct ide_cmd
*cmd
)
407 struct request
*rq
= cmd
->rq
;
409 ide_debug_log(IDE_DBG_FUNC
, "rq->cmd[0]: 0x%x", rq
->cmd
[0]);
412 * Some of the trailing request sense fields are optional,
413 * and some drives don't send them. Sigh.
415 if (scsi_req(rq
)->cmd
[0] == GPCMD_REQUEST_SENSE
&&
416 cmd
->nleft
> 0 && cmd
->nleft
<= 5)
420 int ide_cd_queue_pc(ide_drive_t
*drive
, const unsigned char *cmd
,
421 int write
, void *buffer
, unsigned *bufflen
,
422 struct request_sense
*sense
, int timeout
,
423 req_flags_t rq_flags
)
425 struct cdrom_info
*info
= drive
->driver_data
;
429 ide_debug_log(IDE_DBG_PC
, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, "
431 cmd
[0], write
, timeout
, rq_flags
);
433 /* start of retry loop */
439 rq
= blk_get_request(drive
->queue
,
440 write
? REQ_OP_DRV_OUT
: REQ_OP_DRV_IN
, __GFP_RECLAIM
);
442 memcpy(scsi_req(rq
)->cmd
, cmd
, BLK_MAX_CDB
);
443 ide_req(rq
)->type
= ATA_PRIV_PC
;
444 rq
->rq_flags
|= rq_flags
;
445 rq
->timeout
= timeout
;
447 error
= blk_rq_map_kern(drive
->queue
, rq
, buffer
,
455 blk_execute_rq(drive
->queue
, info
->disk
, rq
, 0);
456 error
= rq
->errors
? -EIO
: 0;
459 *bufflen
= scsi_req(rq
)->resid_len
;
461 memcpy(sense
, scsi_req(rq
)->sense
, sizeof(*sense
));
464 * FIXME: we should probably abort/retry or something in case of
467 failed
= (rq
->rq_flags
& RQF_FAILED
) != 0;
470 * The request failed. Retry if it was due to a unit
471 * attention status (usually means media was changed).
473 struct request_sense
*reqbuf
= scsi_req(rq
)->sense
;
475 if (reqbuf
->sense_key
== UNIT_ATTENTION
)
476 cdrom_saw_media_change(drive
);
477 else if (reqbuf
->sense_key
== NOT_READY
&&
478 reqbuf
->asc
== 4 && reqbuf
->ascq
!= 4) {
480 * The drive is in the process of loading
481 * a disk. Retry, but wait a little to give
482 * the drive time to complete the load.
486 /* otherwise, don't retry */
494 } while (failed
&& retries
>= 0);
496 /* return an error if the command failed */
497 return failed
? -EIO
: 0;
501 * returns true if rq has been completed
503 static bool ide_cd_error_cmd(ide_drive_t
*drive
, struct ide_cmd
*cmd
)
505 unsigned int nr_bytes
= cmd
->nbytes
- cmd
->nleft
;
507 if (cmd
->tf_flags
& IDE_TFLAG_WRITE
)
508 nr_bytes
-= cmd
->last_xfer_len
;
511 ide_complete_rq(drive
, 0, nr_bytes
);
518 static ide_startstop_t
cdrom_newpc_intr(ide_drive_t
*drive
)
520 ide_hwif_t
*hwif
= drive
->hwif
;
521 struct ide_cmd
*cmd
= &hwif
->cmd
;
522 struct request
*rq
= hwif
->rq
;
523 ide_expiry_t
*expiry
= NULL
;
524 int dma_error
= 0, dma
, thislen
, uptodate
= 0;
525 int write
= (rq_data_dir(rq
) == WRITE
) ? 1 : 0, rc
= 0;
526 int sense
= ata_sense_request(rq
);
527 unsigned int timeout
;
531 ide_debug_log(IDE_DBG_PC
, "cmd: 0x%x, write: 0x%x", rq
->cmd
[0], write
);
533 /* check for errors */
537 drive
->waiting_for_dma
= 0;
538 dma_error
= hwif
->dma_ops
->dma_end(drive
);
539 ide_dma_unmap_sg(drive
, cmd
);
541 printk(KERN_ERR PFX
"%s: DMA %s error\n", drive
->name
,
542 write
? "write" : "read");
548 stat
= hwif
->tp_ops
->read_status(hwif
);
550 if (!OK_STAT(stat
, 0, BAD_R_STAT
)) {
551 rc
= cdrom_decode_status(drive
, stat
);
559 /* using dma, transfer is complete now */
562 return ide_error(drive
, "dma error", stat
);
567 ide_read_bcount_and_ireason(drive
, &len
, &ireason
);
569 thislen
= !blk_rq_is_passthrough(rq
) ? len
: cmd
->nleft
;
573 ide_debug_log(IDE_DBG_PC
, "DRQ: stat: 0x%x, thislen: %d",
576 /* If DRQ is clear, the command has completed. */
577 if ((stat
& ATA_DRQ
) == 0) {
578 switch (req_op(rq
)) {
581 * If we're not done reading/writing, complain.
582 * Otherwise, complete the command normally.
585 if (cmd
->nleft
> 0) {
586 printk(KERN_ERR PFX
"%s: %s: data underrun "
587 "(%u bytes)\n", drive
->name
, __func__
,
590 rq
->rq_flags
|= RQF_FAILED
;
596 ide_cd_request_sense_fixup(drive
, cmd
);
598 uptodate
= cmd
->nleft
? 0 : 1;
601 * suck out the remaining bytes from the drive in an
602 * attempt to complete the data xfer. (see BZ#13399)
604 if (!(stat
& ATA_ERR
) && !uptodate
&& thislen
) {
605 ide_pio_bytes(drive
, cmd
, write
, thislen
);
606 uptodate
= cmd
->nleft
? 0 : 1;
610 rq
->rq_flags
|= RQF_FAILED
;
613 case REQ_OP_SCSI_OUT
:
618 rc
= ide_check_ireason(drive
, rq
, len
, ireason
, write
);
622 cmd
->last_xfer_len
= 0;
624 ide_debug_log(IDE_DBG_PC
, "data transfer, rq->cmd_type: 0x%x, "
626 rq
->cmd_type
, ireason
);
629 while (thislen
> 0) {
630 int blen
= min_t(int, thislen
, cmd
->nleft
);
635 ide_pio_bytes(drive
, cmd
, write
, blen
);
636 cmd
->last_xfer_len
+= blen
;
641 if (sense
&& write
== 0)
642 scsi_req(rq
)->sense_len
+= blen
;
645 /* pad, if necessary */
647 if (blk_rq_is_passthrough(rq
) || write
== 0)
648 ide_pad_transfer(drive
, write
, len
);
650 printk(KERN_ERR PFX
"%s: confused, missing data\n",
652 blk_dump_rq_flags(rq
, "cdrom_newpc_intr");
656 switch (req_op(rq
)) {
658 case REQ_OP_SCSI_OUT
:
659 timeout
= rq
->timeout
;
663 expiry
= ide_cd_expiry
;
666 timeout
= ATAPI_WAIT_PC
;
670 hwif
->expiry
= expiry
;
671 ide_set_handler(drive
, cdrom_newpc_intr
, timeout
);
675 if (blk_rq_is_scsi(rq
) && rc
== 0) {
676 scsi_req(rq
)->resid_len
= 0;
677 blk_end_request_all(rq
, 0);
680 if (sense
&& uptodate
)
681 ide_cd_complete_failed_rq(drive
, rq
);
683 if (!blk_rq_is_passthrough(rq
)) {
687 if (uptodate
<= 0 && rq
->errors
== 0)
691 if (uptodate
== 0 && rq
->bio
)
692 if (ide_cd_error_cmd(drive
, cmd
))
695 /* make sure it's fully ended */
696 if (blk_rq_is_passthrough(rq
)) {
697 scsi_req(rq
)->resid_len
-= cmd
->nbytes
- cmd
->nleft
;
698 if (uptodate
== 0 && (cmd
->tf_flags
& IDE_TFLAG_WRITE
))
699 scsi_req(rq
)->resid_len
+= cmd
->last_xfer_len
;
702 ide_complete_rq(drive
, uptodate
? 0 : -EIO
, blk_rq_bytes(rq
));
704 if (sense
&& rc
== 2)
705 ide_error(drive
, "request sense failure", stat
);
710 static ide_startstop_t
cdrom_start_rw(ide_drive_t
*drive
, struct request
*rq
)
712 struct cdrom_info
*cd
= drive
->driver_data
;
713 struct request_queue
*q
= drive
->queue
;
714 int write
= rq_data_dir(rq
) == WRITE
;
715 unsigned short sectors_per_frame
=
716 queue_logical_block_size(q
) >> SECTOR_BITS
;
718 ide_debug_log(IDE_DBG_RQ
, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, "
719 "secs_per_frame: %u",
720 rq
->cmd
[0], rq
->cmd_flags
, sectors_per_frame
);
723 /* disk has become write protected */
724 if (get_disk_ro(cd
->disk
))
728 * We may be retrying this request after an error. Fix up any
729 * weirdness which might be present in the request packet.
731 q
->prep_rq_fn(q
, rq
);
734 /* fs requests *must* be hardware frame aligned */
735 if ((blk_rq_sectors(rq
) & (sectors_per_frame
- 1)) ||
736 (blk_rq_pos(rq
) & (sectors_per_frame
- 1)))
739 /* use DMA, if possible */
740 drive
->dma
= !!(drive
->dev_flags
& IDE_DFLAG_USING_DMA
);
743 cd
->devinfo
.media_written
= 1;
745 rq
->timeout
= ATAPI_WAIT_PC
;
750 static void cdrom_do_block_pc(ide_drive_t
*drive
, struct request
*rq
)
753 ide_debug_log(IDE_DBG_PC
, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x",
754 rq
->cmd
[0], rq
->cmd_type
);
756 if (blk_rq_is_scsi(rq
))
757 rq
->rq_flags
|= RQF_QUIET
;
759 rq
->rq_flags
&= ~RQF_FAILED
;
765 struct request_queue
*q
= drive
->queue
;
766 char *buf
= bio_data(rq
->bio
);
767 unsigned int alignment
;
769 drive
->dma
= !!(drive
->dev_flags
& IDE_DFLAG_USING_DMA
);
772 * check if dma is safe
774 * NOTE! The "len" and "addr" checks should possibly have
777 alignment
= queue_dma_alignment(q
) | q
->dma_pad_mask
;
778 if ((unsigned long)buf
& alignment
779 || blk_rq_bytes(rq
) & q
->dma_pad_mask
780 || object_is_on_stack(buf
))
785 static ide_startstop_t
ide_cd_do_request(ide_drive_t
*drive
, struct request
*rq
,
790 unsigned int nsectors
;
792 ide_debug_log(IDE_DBG_RQ
, "cmd: 0x%x, block: %llu",
793 rq
->cmd
[0], (unsigned long long)block
);
795 if (drive
->debug_mask
& IDE_DBG_RQ
)
796 blk_dump_rq_flags(rq
, "ide_cd_do_request");
798 switch (req_op(rq
)) {
800 if (cdrom_start_rw(drive
, rq
) == ide_stopped
)
804 case REQ_OP_SCSI_OUT
:
807 rq
->timeout
= ATAPI_WAIT_PC
;
808 cdrom_do_block_pc(drive
, rq
);
812 switch (ide_req(rq
)->type
) {
814 /* right now this can only be a reset... */
825 /* prepare sense request for this command */
826 ide_prep_sense(drive
, rq
);
828 memset(&cmd
, 0, sizeof(cmd
));
831 cmd
.tf_flags
|= IDE_TFLAG_WRITE
;
835 if (!blk_rq_is_passthrough(rq
) || blk_rq_bytes(rq
)) {
836 ide_init_sg_cmd(&cmd
, blk_rq_bytes(rq
));
837 ide_map_sg(drive
, &cmd
);
840 return ide_issue_pc(drive
, &cmd
);
842 nsectors
= blk_rq_sectors(rq
);
847 ide_complete_rq(drive
, uptodate
? 0 : -EIO
, nsectors
<< 9);
855 * Routines which queue packet commands take as a final argument a pointer to a
856 * request_sense struct. If execution of the command results in an error with a
857 * CHECK CONDITION status, this structure will be filled with the results of the
858 * subsequent request sense command. The pointer can also be NULL, in which case
859 * no sense information is returned.
861 static void msf_from_bcd(struct atapi_msf
*msf
)
863 msf
->minute
= bcd2bin(msf
->minute
);
864 msf
->second
= bcd2bin(msf
->second
);
865 msf
->frame
= bcd2bin(msf
->frame
);
868 int cdrom_check_status(ide_drive_t
*drive
, struct request_sense
*sense
)
870 struct cdrom_info
*info
= drive
->driver_data
;
871 struct cdrom_device_info
*cdi
= &info
->devinfo
;
872 unsigned char cmd
[BLK_MAX_CDB
];
874 ide_debug_log(IDE_DBG_FUNC
, "enter");
876 memset(cmd
, 0, BLK_MAX_CDB
);
877 cmd
[0] = GPCMD_TEST_UNIT_READY
;
880 * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs
881 * instead of supporting the LOAD_UNLOAD opcode.
883 cmd
[7] = cdi
->sanyo_slot
% 3;
885 return ide_cd_queue_pc(drive
, cmd
, 0, NULL
, NULL
, sense
, 0, RQF_QUIET
);
888 static int cdrom_read_capacity(ide_drive_t
*drive
, unsigned long *capacity
,
889 unsigned long *sectors_per_frame
,
890 struct request_sense
*sense
)
898 unsigned char cmd
[BLK_MAX_CDB
];
899 unsigned len
= sizeof(capbuf
);
902 ide_debug_log(IDE_DBG_FUNC
, "enter");
904 memset(cmd
, 0, BLK_MAX_CDB
);
905 cmd
[0] = GPCMD_READ_CDVD_CAPACITY
;
907 stat
= ide_cd_queue_pc(drive
, cmd
, 0, &capbuf
, &len
, sense
, 0,
913 * Sanity check the given block size, in so far as making
914 * sure the sectors_per_frame we give to the caller won't
915 * end up being bogus.
917 blocklen
= be32_to_cpu(capbuf
.blocklen
);
918 blocklen
= (blocklen
>> SECTOR_BITS
) << SECTOR_BITS
;
926 printk_once(KERN_ERR PFX
"%s: weird block size %u; "
927 "setting default block size to 2048\n",
928 drive
->name
, blocklen
);
933 *capacity
= 1 + be32_to_cpu(capbuf
.lba
);
934 *sectors_per_frame
= blocklen
>> SECTOR_BITS
;
936 ide_debug_log(IDE_DBG_PROBE
, "cap: %lu, sectors_per_frame: %lu",
937 *capacity
, *sectors_per_frame
);
942 static int cdrom_read_tocentry(ide_drive_t
*drive
, int trackno
, int msf_flag
,
943 int format
, char *buf
, int buflen
,
944 struct request_sense
*sense
)
946 unsigned char cmd
[BLK_MAX_CDB
];
948 ide_debug_log(IDE_DBG_FUNC
, "enter");
950 memset(cmd
, 0, BLK_MAX_CDB
);
952 cmd
[0] = GPCMD_READ_TOC_PMA_ATIP
;
954 cmd
[7] = (buflen
>> 8);
955 cmd
[8] = (buflen
& 0xff);
956 cmd
[9] = (format
<< 6);
961 return ide_cd_queue_pc(drive
, cmd
, 0, buf
, &buflen
, sense
, 0, RQF_QUIET
);
964 /* Try to read the entire TOC for the disk into our internal buffer. */
965 int ide_cd_read_toc(ide_drive_t
*drive
, struct request_sense
*sense
)
967 int stat
, ntracks
, i
;
968 struct cdrom_info
*info
= drive
->driver_data
;
969 struct cdrom_device_info
*cdi
= &info
->devinfo
;
970 struct atapi_toc
*toc
= info
->toc
;
972 struct atapi_toc_header hdr
;
973 struct atapi_toc_entry ent
;
976 unsigned long sectors_per_frame
= SECTORS_PER_FRAME
;
978 ide_debug_log(IDE_DBG_FUNC
, "enter");
981 /* try to allocate space */
982 toc
= kmalloc(sizeof(struct atapi_toc
), GFP_KERNEL
);
984 printk(KERN_ERR PFX
"%s: No cdrom TOC buffer!\n",
992 * Check to see if the existing data is still valid. If it is,
995 (void) cdrom_check_status(drive
, sense
);
997 if (drive
->atapi_flags
& IDE_AFLAG_TOC_VALID
)
1000 /* try to get the total cdrom capacity and sector size */
1001 stat
= cdrom_read_capacity(drive
, &toc
->capacity
, §ors_per_frame
,
1004 toc
->capacity
= 0x1fffff;
1006 set_capacity(info
->disk
, toc
->capacity
* sectors_per_frame
);
1007 /* save a private copy of the TOC capacity for error handling */
1008 drive
->probed_capacity
= toc
->capacity
* sectors_per_frame
;
1010 blk_queue_logical_block_size(drive
->queue
,
1011 sectors_per_frame
<< SECTOR_BITS
);
1013 /* first read just the header, so we know how long the TOC is */
1014 stat
= cdrom_read_tocentry(drive
, 0, 1, 0, (char *) &toc
->hdr
,
1015 sizeof(struct atapi_toc_header
), sense
);
1019 if (drive
->atapi_flags
& IDE_AFLAG_TOCTRACKS_AS_BCD
) {
1020 toc
->hdr
.first_track
= bcd2bin(toc
->hdr
.first_track
);
1021 toc
->hdr
.last_track
= bcd2bin(toc
->hdr
.last_track
);
1024 ntracks
= toc
->hdr
.last_track
- toc
->hdr
.first_track
+ 1;
1027 if (ntracks
> MAX_TRACKS
)
1028 ntracks
= MAX_TRACKS
;
1030 /* now read the whole schmeer */
1031 stat
= cdrom_read_tocentry(drive
, toc
->hdr
.first_track
, 1, 0,
1033 sizeof(struct atapi_toc_header
) +
1035 sizeof(struct atapi_toc_entry
), sense
);
1037 if (stat
&& toc
->hdr
.first_track
> 1) {
1039 * Cds with CDI tracks only don't have any TOC entries, despite
1040 * of this the returned values are
1041 * first_track == last_track = number of CDI tracks + 1,
1042 * so that this case is indistinguishable from the same layout
1043 * plus an additional audio track. If we get an error for the
1044 * regular case, we assume a CDI without additional audio
1045 * tracks. In this case the readable TOC is empty (CDI tracks
1046 * are not included) and only holds the Leadout entry.
1051 stat
= cdrom_read_tocentry(drive
, CDROM_LEADOUT
, 1, 0,
1053 sizeof(struct atapi_toc_header
) +
1055 sizeof(struct atapi_toc_entry
),
1060 if (drive
->atapi_flags
& IDE_AFLAG_TOCTRACKS_AS_BCD
) {
1061 toc
->hdr
.first_track
= (u8
)bin2bcd(CDROM_LEADOUT
);
1062 toc
->hdr
.last_track
= (u8
)bin2bcd(CDROM_LEADOUT
);
1064 toc
->hdr
.first_track
= CDROM_LEADOUT
;
1065 toc
->hdr
.last_track
= CDROM_LEADOUT
;
1072 toc
->hdr
.toc_length
= be16_to_cpu(toc
->hdr
.toc_length
);
1074 if (drive
->atapi_flags
& IDE_AFLAG_TOCTRACKS_AS_BCD
) {
1075 toc
->hdr
.first_track
= bcd2bin(toc
->hdr
.first_track
);
1076 toc
->hdr
.last_track
= bcd2bin(toc
->hdr
.last_track
);
1079 for (i
= 0; i
<= ntracks
; i
++) {
1080 if (drive
->atapi_flags
& IDE_AFLAG_TOCADDR_AS_BCD
) {
1081 if (drive
->atapi_flags
& IDE_AFLAG_TOCTRACKS_AS_BCD
)
1082 toc
->ent
[i
].track
= bcd2bin(toc
->ent
[i
].track
);
1083 msf_from_bcd(&toc
->ent
[i
].addr
.msf
);
1085 toc
->ent
[i
].addr
.lba
= msf_to_lba(toc
->ent
[i
].addr
.msf
.minute
,
1086 toc
->ent
[i
].addr
.msf
.second
,
1087 toc
->ent
[i
].addr
.msf
.frame
);
1090 if (toc
->hdr
.first_track
!= CDROM_LEADOUT
) {
1091 /* read the multisession information */
1092 stat
= cdrom_read_tocentry(drive
, 0, 0, 1, (char *)&ms_tmp
,
1093 sizeof(ms_tmp
), sense
);
1097 toc
->last_session_lba
= be32_to_cpu(ms_tmp
.ent
.addr
.lba
);
1099 ms_tmp
.hdr
.last_track
= CDROM_LEADOUT
;
1100 ms_tmp
.hdr
.first_track
= ms_tmp
.hdr
.last_track
;
1101 toc
->last_session_lba
= msf_to_lba(0, 2, 0); /* 0m 2s 0f */
1104 if (drive
->atapi_flags
& IDE_AFLAG_TOCADDR_AS_BCD
) {
1105 /* re-read multisession information using MSF format */
1106 stat
= cdrom_read_tocentry(drive
, 0, 1, 1, (char *)&ms_tmp
,
1107 sizeof(ms_tmp
), sense
);
1111 msf_from_bcd(&ms_tmp
.ent
.addr
.msf
);
1112 toc
->last_session_lba
= msf_to_lba(ms_tmp
.ent
.addr
.msf
.minute
,
1113 ms_tmp
.ent
.addr
.msf
.second
,
1114 ms_tmp
.ent
.addr
.msf
.frame
);
1117 toc
->xa_flag
= (ms_tmp
.hdr
.first_track
!= ms_tmp
.hdr
.last_track
);
1119 /* now try to get the total cdrom capacity */
1120 stat
= cdrom_get_last_written(cdi
, &last_written
);
1121 if (!stat
&& (last_written
> toc
->capacity
)) {
1122 toc
->capacity
= last_written
;
1123 set_capacity(info
->disk
, toc
->capacity
* sectors_per_frame
);
1124 drive
->probed_capacity
= toc
->capacity
* sectors_per_frame
;
1127 /* Remember that we've read this stuff. */
1128 drive
->atapi_flags
|= IDE_AFLAG_TOC_VALID
;
1133 int ide_cdrom_get_capabilities(ide_drive_t
*drive
, u8
*buf
)
1135 struct cdrom_info
*info
= drive
->driver_data
;
1136 struct cdrom_device_info
*cdi
= &info
->devinfo
;
1137 struct packet_command cgc
;
1138 int stat
, attempts
= 3, size
= ATAPI_CAPABILITIES_PAGE_SIZE
;
1140 ide_debug_log(IDE_DBG_FUNC
, "enter");
1142 if ((drive
->atapi_flags
& IDE_AFLAG_FULL_CAPS_PAGE
) == 0)
1143 size
-= ATAPI_CAPABILITIES_PAGE_PAD_SIZE
;
1145 init_cdrom_command(&cgc
, buf
, size
, CGC_DATA_UNKNOWN
);
1147 /* we seem to get stat=0x01,err=0x00 the first time (??) */
1148 stat
= cdrom_mode_sense(cdi
, &cgc
, GPMODE_CAPABILITIES_PAGE
, 0);
1151 } while (--attempts
);
1155 void ide_cdrom_update_speed(ide_drive_t
*drive
, u8
*buf
)
1157 struct cdrom_info
*cd
= drive
->driver_data
;
1158 u16 curspeed
, maxspeed
;
1160 ide_debug_log(IDE_DBG_FUNC
, "enter");
1162 if (drive
->atapi_flags
& IDE_AFLAG_LE_SPEED_FIELDS
) {
1163 curspeed
= le16_to_cpup((__le16
*)&buf
[8 + 14]);
1164 maxspeed
= le16_to_cpup((__le16
*)&buf
[8 + 8]);
1166 curspeed
= be16_to_cpup((__be16
*)&buf
[8 + 14]);
1167 maxspeed
= be16_to_cpup((__be16
*)&buf
[8 + 8]);
1170 ide_debug_log(IDE_DBG_PROBE
, "curspeed: %u, maxspeed: %u",
1171 curspeed
, maxspeed
);
1173 cd
->current_speed
= DIV_ROUND_CLOSEST(curspeed
, 176);
1174 cd
->max_speed
= DIV_ROUND_CLOSEST(maxspeed
, 176);
1177 #define IDE_CD_CAPABILITIES \
1178 (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \
1179 CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \
1180 CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \
1181 CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \
1182 CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM)
1184 static const struct cdrom_device_ops ide_cdrom_dops
= {
1185 .open
= ide_cdrom_open_real
,
1186 .release
= ide_cdrom_release_real
,
1187 .drive_status
= ide_cdrom_drive_status
,
1188 .check_events
= ide_cdrom_check_events_real
,
1189 .tray_move
= ide_cdrom_tray_move
,
1190 .lock_door
= ide_cdrom_lock_door
,
1191 .select_speed
= ide_cdrom_select_speed
,
1192 .get_last_session
= ide_cdrom_get_last_session
,
1193 .get_mcn
= ide_cdrom_get_mcn
,
1194 .reset
= ide_cdrom_reset
,
1195 .audio_ioctl
= ide_cdrom_audio_ioctl
,
1196 .capability
= IDE_CD_CAPABILITIES
,
1197 .generic_packet
= ide_cdrom_packet
,
1200 static int ide_cdrom_register(ide_drive_t
*drive
, int nslots
)
1202 struct cdrom_info
*info
= drive
->driver_data
;
1203 struct cdrom_device_info
*devinfo
= &info
->devinfo
;
1205 ide_debug_log(IDE_DBG_PROBE
, "nslots: %d", nslots
);
1207 devinfo
->ops
= &ide_cdrom_dops
;
1208 devinfo
->speed
= info
->current_speed
;
1209 devinfo
->capacity
= nslots
;
1210 devinfo
->handle
= drive
;
1211 strcpy(devinfo
->name
, drive
->name
);
1213 if (drive
->atapi_flags
& IDE_AFLAG_NO_SPEED_SELECT
)
1214 devinfo
->mask
|= CDC_SELECT_SPEED
;
1216 devinfo
->disk
= info
->disk
;
1217 return register_cdrom(devinfo
);
1220 static int ide_cdrom_probe_capabilities(ide_drive_t
*drive
)
1222 struct cdrom_info
*cd
= drive
->driver_data
;
1223 struct cdrom_device_info
*cdi
= &cd
->devinfo
;
1224 u8 buf
[ATAPI_CAPABILITIES_PAGE_SIZE
];
1225 mechtype_t mechtype
;
1228 ide_debug_log(IDE_DBG_PROBE
, "media: 0x%x, atapi_flags: 0x%lx",
1229 drive
->media
, drive
->atapi_flags
);
1231 cdi
->mask
= (CDC_CD_R
| CDC_CD_RW
| CDC_DVD
| CDC_DVD_R
|
1232 CDC_DVD_RAM
| CDC_SELECT_DISC
| CDC_PLAY_AUDIO
|
1233 CDC_MO_DRIVE
| CDC_RAM
);
1235 if (drive
->media
== ide_optical
) {
1236 cdi
->mask
&= ~(CDC_MO_DRIVE
| CDC_RAM
);
1237 printk(KERN_ERR PFX
"%s: ATAPI magneto-optical drive\n",
1242 if (drive
->atapi_flags
& IDE_AFLAG_PRE_ATAPI12
) {
1243 drive
->atapi_flags
&= ~IDE_AFLAG_NO_EJECT
;
1244 cdi
->mask
&= ~CDC_PLAY_AUDIO
;
1249 * We have to cheat a little here. the packet will eventually be queued
1250 * with ide_cdrom_packet(), which extracts the drive from cdi->handle.
1251 * Since this device hasn't been registered with the Uniform layer yet,
1252 * it can't do this. Same goes for cdi->ops.
1254 cdi
->handle
= drive
;
1255 cdi
->ops
= &ide_cdrom_dops
;
1257 if (ide_cdrom_get_capabilities(drive
, buf
))
1260 if ((buf
[8 + 6] & 0x01) == 0)
1261 drive
->dev_flags
&= ~IDE_DFLAG_DOORLOCKING
;
1262 if (buf
[8 + 6] & 0x08)
1263 drive
->atapi_flags
&= ~IDE_AFLAG_NO_EJECT
;
1264 if (buf
[8 + 3] & 0x01)
1265 cdi
->mask
&= ~CDC_CD_R
;
1266 if (buf
[8 + 3] & 0x02)
1267 cdi
->mask
&= ~(CDC_CD_RW
| CDC_RAM
);
1268 if (buf
[8 + 2] & 0x38)
1269 cdi
->mask
&= ~CDC_DVD
;
1270 if (buf
[8 + 3] & 0x20)
1271 cdi
->mask
&= ~(CDC_DVD_RAM
| CDC_RAM
);
1272 if (buf
[8 + 3] & 0x10)
1273 cdi
->mask
&= ~CDC_DVD_R
;
1274 if ((buf
[8 + 4] & 0x01) || (drive
->atapi_flags
& IDE_AFLAG_PLAY_AUDIO_OK
))
1275 cdi
->mask
&= ~CDC_PLAY_AUDIO
;
1277 mechtype
= buf
[8 + 6] >> 5;
1278 if (mechtype
== mechtype_caddy
||
1279 mechtype
== mechtype_popup
||
1280 (drive
->atapi_flags
& IDE_AFLAG_NO_AUTOCLOSE
))
1281 cdi
->mask
|= CDC_CLOSE_TRAY
;
1283 if (cdi
->sanyo_slot
> 0) {
1284 cdi
->mask
&= ~CDC_SELECT_DISC
;
1286 } else if (mechtype
== mechtype_individual_changer
||
1287 mechtype
== mechtype_cartridge_changer
) {
1288 nslots
= cdrom_number_of_slots(cdi
);
1290 cdi
->mask
&= ~CDC_SELECT_DISC
;
1293 ide_cdrom_update_speed(drive
, buf
);
1295 printk(KERN_INFO PFX
"%s: ATAPI", drive
->name
);
1297 /* don't print speed if the drive reported 0 */
1299 printk(KERN_CONT
" %dX", cd
->max_speed
);
1301 printk(KERN_CONT
" %s", (cdi
->mask
& CDC_DVD
) ? "CD-ROM" : "DVD-ROM");
1303 if ((cdi
->mask
& CDC_DVD_R
) == 0 || (cdi
->mask
& CDC_DVD_RAM
) == 0)
1304 printk(KERN_CONT
" DVD%s%s",
1305 (cdi
->mask
& CDC_DVD_R
) ? "" : "-R",
1306 (cdi
->mask
& CDC_DVD_RAM
) ? "" : "/RAM");
1308 if ((cdi
->mask
& CDC_CD_R
) == 0 || (cdi
->mask
& CDC_CD_RW
) == 0)
1309 printk(KERN_CONT
" CD%s%s",
1310 (cdi
->mask
& CDC_CD_R
) ? "" : "-R",
1311 (cdi
->mask
& CDC_CD_RW
) ? "" : "/RW");
1313 if ((cdi
->mask
& CDC_SELECT_DISC
) == 0)
1314 printk(KERN_CONT
" changer w/%d slots", nslots
);
1316 printk(KERN_CONT
" drive");
1318 printk(KERN_CONT
", %dkB Cache\n",
1319 be16_to_cpup((__be16
*)&buf
[8 + 12]));
1324 /* standard prep_rq_fn that builds 10 byte cmds */
1325 static int ide_cdrom_prep_fs(struct request_queue
*q
, struct request
*rq
)
1327 int hard_sect
= queue_logical_block_size(q
);
1328 long block
= (long)blk_rq_pos(rq
) / (hard_sect
>> 9);
1329 unsigned long blocks
= blk_rq_sectors(rq
) / (hard_sect
>> 9);
1330 struct scsi_request
*req
= scsi_req(rq
);
1332 memset(req
->cmd
, 0, BLK_MAX_CDB
);
1334 if (rq_data_dir(rq
) == READ
)
1335 req
->cmd
[0] = GPCMD_READ_10
;
1337 req
->cmd
[0] = GPCMD_WRITE_10
;
1342 req
->cmd
[2] = (block
>> 24) & 0xff;
1343 req
->cmd
[3] = (block
>> 16) & 0xff;
1344 req
->cmd
[4] = (block
>> 8) & 0xff;
1345 req
->cmd
[5] = block
& 0xff;
1348 * and transfer length
1350 req
->cmd
[7] = (blocks
>> 8) & 0xff;
1351 req
->cmd
[8] = blocks
& 0xff;
1357 * Most of the SCSI commands are supported directly by ATAPI devices.
1358 * This transform handles the few exceptions.
1360 static int ide_cdrom_prep_pc(struct request
*rq
)
1362 u8
*c
= scsi_req(rq
)->cmd
;
1364 /* transform 6-byte read/write commands to the 10-byte version */
1365 if (c
[0] == READ_6
|| c
[0] == WRITE_6
) {
1372 c
[0] += (READ_10
- READ_6
);
1373 scsi_req(rq
)->cmd_len
= 10;
1378 * it's silly to pretend we understand 6-byte sense commands, just
1379 * reject with ILLEGAL_REQUEST and the caller should take the
1380 * appropriate action
1382 if (c
[0] == MODE_SENSE
|| c
[0] == MODE_SELECT
) {
1383 rq
->errors
= ILLEGAL_REQUEST
;
1384 return BLKPREP_KILL
;
1390 static int ide_cdrom_prep_fn(struct request_queue
*q
, struct request
*rq
)
1392 if (!blk_rq_is_passthrough(rq
))
1393 return ide_cdrom_prep_fs(q
, rq
);
1394 else if (blk_rq_is_scsi(rq
))
1395 return ide_cdrom_prep_pc(rq
);
1400 struct cd_list_entry
{
1401 const char *id_model
;
1402 const char *id_firmware
;
1403 unsigned int cd_flags
;
1406 #ifdef CONFIG_IDE_PROC_FS
1407 static sector_t
ide_cdrom_capacity(ide_drive_t
*drive
)
1409 unsigned long capacity
, sectors_per_frame
;
1411 if (cdrom_read_capacity(drive
, &capacity
, §ors_per_frame
, NULL
))
1414 return capacity
* sectors_per_frame
;
1417 static int idecd_capacity_proc_show(struct seq_file
*m
, void *v
)
1419 ide_drive_t
*drive
= m
->private;
1421 seq_printf(m
, "%llu\n", (long long)ide_cdrom_capacity(drive
));
1425 static int idecd_capacity_proc_open(struct inode
*inode
, struct file
*file
)
1427 return single_open(file
, idecd_capacity_proc_show
, PDE_DATA(inode
));
1430 static const struct file_operations idecd_capacity_proc_fops
= {
1431 .owner
= THIS_MODULE
,
1432 .open
= idecd_capacity_proc_open
,
1434 .llseek
= seq_lseek
,
1435 .release
= single_release
,
1438 static ide_proc_entry_t idecd_proc
[] = {
1439 { "capacity", S_IFREG
|S_IRUGO
, &idecd_capacity_proc_fops
},
1443 static ide_proc_entry_t
*ide_cd_proc_entries(ide_drive_t
*drive
)
1448 static const struct ide_proc_devset
*ide_cd_proc_devsets(ide_drive_t
*drive
)
1454 static const struct cd_list_entry ide_cd_quirks_list
[] = {
1455 /* SCR-3231 doesn't support the SET_CD_SPEED command. */
1456 { "SAMSUNG CD-ROM SCR-3231", NULL
, IDE_AFLAG_NO_SPEED_SELECT
},
1457 /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */
1458 { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD
|
1459 IDE_AFLAG_PRE_ATAPI12
, },
1460 /* Vertos 300, some versions of this drive like to talk BCD. */
1461 { "V003S0DS", NULL
, IDE_AFLAG_VERTOS_300_SSD
, },
1462 /* Vertos 600 ESD. */
1463 { "V006E0DS", NULL
, IDE_AFLAG_VERTOS_600_ESD
, },
1465 * Sanyo 3 CD changer uses a non-standard command for CD changing
1466 * (by default standard ATAPI support for CD changers is used).
1468 { "CD-ROM CDR-C3 G", NULL
, IDE_AFLAG_SANYO_3CD
},
1469 { "CD-ROM CDR-C3G", NULL
, IDE_AFLAG_SANYO_3CD
},
1470 { "CD-ROM CDR_C36", NULL
, IDE_AFLAG_SANYO_3CD
},
1471 /* Stingray 8X CD-ROM. */
1472 { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL
, IDE_AFLAG_PRE_ATAPI12
},
1474 * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length
1475 * mode sense page capabilities size, but older drives break.
1477 { "ATAPI CD ROM DRIVE 50X MAX", NULL
, IDE_AFLAG_FULL_CAPS_PAGE
},
1478 { "WPI CDS-32X", NULL
, IDE_AFLAG_FULL_CAPS_PAGE
},
1479 /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */
1480 { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS
},
1482 * Some drives used by Apple don't advertise audio play
1483 * but they do support reading TOC & audio datas.
1485 { "MATSHITADVD-ROM SR-8187", NULL
, IDE_AFLAG_PLAY_AUDIO_OK
},
1486 { "MATSHITADVD-ROM SR-8186", NULL
, IDE_AFLAG_PLAY_AUDIO_OK
},
1487 { "MATSHITADVD-ROM SR-8176", NULL
, IDE_AFLAG_PLAY_AUDIO_OK
},
1488 { "MATSHITADVD-ROM SR-8174", NULL
, IDE_AFLAG_PLAY_AUDIO_OK
},
1489 { "Optiarc DVD RW AD-5200A", NULL
, IDE_AFLAG_PLAY_AUDIO_OK
},
1490 { "Optiarc DVD RW AD-7200A", NULL
, IDE_AFLAG_PLAY_AUDIO_OK
},
1491 { "Optiarc DVD RW AD-7543A", NULL
, IDE_AFLAG_NO_AUTOCLOSE
},
1492 { "TEAC CD-ROM CD-224E", NULL
, IDE_AFLAG_NO_AUTOCLOSE
},
1496 static unsigned int ide_cd_flags(u16
*id
)
1498 const struct cd_list_entry
*cle
= ide_cd_quirks_list
;
1500 while (cle
->id_model
) {
1501 if (strcmp(cle
->id_model
, (char *)&id
[ATA_ID_PROD
]) == 0 &&
1502 (cle
->id_firmware
== NULL
||
1503 strstr((char *)&id
[ATA_ID_FW_REV
], cle
->id_firmware
)))
1504 return cle
->cd_flags
;
1511 static int ide_cdrom_setup(ide_drive_t
*drive
)
1513 struct cdrom_info
*cd
= drive
->driver_data
;
1514 struct cdrom_device_info
*cdi
= &cd
->devinfo
;
1515 struct request_queue
*q
= drive
->queue
;
1516 u16
*id
= drive
->id
;
1517 char *fw_rev
= (char *)&id
[ATA_ID_FW_REV
];
1520 ide_debug_log(IDE_DBG_PROBE
, "enter");
1522 blk_queue_prep_rq(q
, ide_cdrom_prep_fn
);
1523 blk_queue_dma_alignment(q
, 31);
1524 blk_queue_update_dma_pad(q
, 15);
1526 drive
->dev_flags
|= IDE_DFLAG_MEDIA_CHANGED
;
1527 drive
->atapi_flags
= IDE_AFLAG_NO_EJECT
| ide_cd_flags(id
);
1529 if ((drive
->atapi_flags
& IDE_AFLAG_VERTOS_300_SSD
) &&
1530 fw_rev
[4] == '1' && fw_rev
[6] <= '2')
1531 drive
->atapi_flags
|= (IDE_AFLAG_TOCTRACKS_AS_BCD
|
1532 IDE_AFLAG_TOCADDR_AS_BCD
);
1533 else if ((drive
->atapi_flags
& IDE_AFLAG_VERTOS_600_ESD
) &&
1534 fw_rev
[4] == '1' && fw_rev
[6] <= '2')
1535 drive
->atapi_flags
|= IDE_AFLAG_TOCTRACKS_AS_BCD
;
1536 else if (drive
->atapi_flags
& IDE_AFLAG_SANYO_3CD
)
1537 /* 3 => use CD in slot 0 */
1538 cdi
->sanyo_slot
= 3;
1540 nslots
= ide_cdrom_probe_capabilities(drive
);
1542 blk_queue_logical_block_size(q
, CD_FRAMESIZE
);
1544 if (ide_cdrom_register(drive
, nslots
)) {
1545 printk(KERN_ERR PFX
"%s: %s failed to register device with the"
1546 " cdrom driver.\n", drive
->name
, __func__
);
1547 cd
->devinfo
.handle
= NULL
;
1551 ide_proc_register_driver(drive
, cd
->driver
);
1555 static void ide_cd_remove(ide_drive_t
*drive
)
1557 struct cdrom_info
*info
= drive
->driver_data
;
1559 ide_debug_log(IDE_DBG_FUNC
, "enter");
1561 ide_proc_unregister_driver(drive
, info
->driver
);
1562 device_del(&info
->dev
);
1563 del_gendisk(info
->disk
);
1565 mutex_lock(&idecd_ref_mutex
);
1566 put_device(&info
->dev
);
1567 mutex_unlock(&idecd_ref_mutex
);
1570 static void ide_cd_release(struct device
*dev
)
1572 struct cdrom_info
*info
= to_ide_drv(dev
, cdrom_info
);
1573 struct cdrom_device_info
*devinfo
= &info
->devinfo
;
1574 ide_drive_t
*drive
= info
->drive
;
1575 struct gendisk
*g
= info
->disk
;
1577 ide_debug_log(IDE_DBG_FUNC
, "enter");
1580 if (devinfo
->handle
== drive
)
1581 unregister_cdrom(devinfo
);
1582 drive
->driver_data
= NULL
;
1583 blk_queue_prep_rq(drive
->queue
, NULL
);
1584 g
->private_data
= NULL
;
1589 static int ide_cd_probe(ide_drive_t
*);
1591 static struct ide_driver ide_cdrom_driver
= {
1593 .owner
= THIS_MODULE
,
1594 .name
= "ide-cdrom",
1595 .bus
= &ide_bus_type
,
1597 .probe
= ide_cd_probe
,
1598 .remove
= ide_cd_remove
,
1599 .version
= IDECD_VERSION
,
1600 .do_request
= ide_cd_do_request
,
1601 #ifdef CONFIG_IDE_PROC_FS
1602 .proc_entries
= ide_cd_proc_entries
,
1603 .proc_devsets
= ide_cd_proc_devsets
,
1607 static int idecd_open(struct block_device
*bdev
, fmode_t mode
)
1609 struct cdrom_info
*info
;
1612 mutex_lock(&ide_cd_mutex
);
1613 info
= ide_cd_get(bdev
->bd_disk
);
1617 rc
= cdrom_open(&info
->devinfo
, bdev
, mode
);
1621 mutex_unlock(&ide_cd_mutex
);
1625 static void idecd_release(struct gendisk
*disk
, fmode_t mode
)
1627 struct cdrom_info
*info
= ide_drv_g(disk
, cdrom_info
);
1629 mutex_lock(&ide_cd_mutex
);
1630 cdrom_release(&info
->devinfo
, mode
);
1633 mutex_unlock(&ide_cd_mutex
);
1636 static int idecd_set_spindown(struct cdrom_device_info
*cdi
, unsigned long arg
)
1638 struct packet_command cgc
;
1643 if (copy_from_user(&spindown
, (void __user
*)arg
, sizeof(char)))
1646 init_cdrom_command(&cgc
, buffer
, sizeof(buffer
), CGC_DATA_UNKNOWN
);
1648 stat
= cdrom_mode_sense(cdi
, &cgc
, GPMODE_CDROM_PAGE
, 0);
1652 buffer
[11] = (buffer
[11] & 0xf0) | (spindown
& 0x0f);
1653 return cdrom_mode_select(cdi
, &cgc
);
1656 static int idecd_get_spindown(struct cdrom_device_info
*cdi
, unsigned long arg
)
1658 struct packet_command cgc
;
1663 init_cdrom_command(&cgc
, buffer
, sizeof(buffer
), CGC_DATA_UNKNOWN
);
1665 stat
= cdrom_mode_sense(cdi
, &cgc
, GPMODE_CDROM_PAGE
, 0);
1669 spindown
= buffer
[11] & 0x0f;
1670 if (copy_to_user((void __user
*)arg
, &spindown
, sizeof(char)))
1675 static int idecd_locked_ioctl(struct block_device
*bdev
, fmode_t mode
,
1676 unsigned int cmd
, unsigned long arg
)
1678 struct cdrom_info
*info
= ide_drv_g(bdev
->bd_disk
, cdrom_info
);
1682 case CDROMSETSPINDOWN
:
1683 return idecd_set_spindown(&info
->devinfo
, arg
);
1684 case CDROMGETSPINDOWN
:
1685 return idecd_get_spindown(&info
->devinfo
, arg
);
1690 err
= generic_ide_ioctl(info
->drive
, bdev
, cmd
, arg
);
1692 err
= cdrom_ioctl(&info
->devinfo
, bdev
, mode
, cmd
, arg
);
1697 static int idecd_ioctl(struct block_device
*bdev
, fmode_t mode
,
1698 unsigned int cmd
, unsigned long arg
)
1702 mutex_lock(&ide_cd_mutex
);
1703 ret
= idecd_locked_ioctl(bdev
, mode
, cmd
, arg
);
1704 mutex_unlock(&ide_cd_mutex
);
1710 static unsigned int idecd_check_events(struct gendisk
*disk
,
1711 unsigned int clearing
)
1713 struct cdrom_info
*info
= ide_drv_g(disk
, cdrom_info
);
1714 return cdrom_check_events(&info
->devinfo
, clearing
);
1717 static int idecd_revalidate_disk(struct gendisk
*disk
)
1719 struct cdrom_info
*info
= ide_drv_g(disk
, cdrom_info
);
1720 struct request_sense sense
;
1722 ide_cd_read_toc(info
->drive
, &sense
);
1727 static const struct block_device_operations idecd_ops
= {
1728 .owner
= THIS_MODULE
,
1730 .release
= idecd_release
,
1731 .ioctl
= idecd_ioctl
,
1732 .check_events
= idecd_check_events
,
1733 .revalidate_disk
= idecd_revalidate_disk
1736 /* module options */
1737 static unsigned long debug_mask
;
1738 module_param(debug_mask
, ulong
, 0644);
1740 MODULE_DESCRIPTION("ATAPI CD-ROM Driver");
1742 static int ide_cd_probe(ide_drive_t
*drive
)
1744 struct cdrom_info
*info
;
1746 struct request_sense sense
;
1748 ide_debug_log(IDE_DBG_PROBE
, "driver_req: %s, media: 0x%x",
1749 drive
->driver_req
, drive
->media
);
1751 if (!strstr("ide-cdrom", drive
->driver_req
))
1754 if (drive
->media
!= ide_cdrom
&& drive
->media
!= ide_optical
)
1757 drive
->debug_mask
= debug_mask
;
1758 drive
->irq_handler
= cdrom_newpc_intr
;
1760 info
= kzalloc(sizeof(struct cdrom_info
), GFP_KERNEL
);
1762 printk(KERN_ERR PFX
"%s: Can't allocate a cdrom structure\n",
1767 g
= alloc_disk(1 << PARTN_BITS
);
1771 ide_init_disk(g
, drive
);
1773 info
->dev
.parent
= &drive
->gendev
;
1774 info
->dev
.release
= ide_cd_release
;
1775 dev_set_name(&info
->dev
, "%s", dev_name(&drive
->gendev
));
1777 if (device_register(&info
->dev
))
1780 info
->drive
= drive
;
1781 info
->driver
= &ide_cdrom_driver
;
1784 g
->private_data
= &info
->driver
;
1786 drive
->driver_data
= info
;
1789 g
->flags
= GENHD_FL_CD
| GENHD_FL_REMOVABLE
;
1790 if (ide_cdrom_setup(drive
)) {
1791 put_device(&info
->dev
);
1795 ide_cd_read_toc(drive
, &sense
);
1796 g
->fops
= &idecd_ops
;
1797 g
->flags
|= GENHD_FL_REMOVABLE
| GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE
;
1798 device_add_disk(&drive
->gendev
, g
);
1809 static void __exit
ide_cdrom_exit(void)
1811 driver_unregister(&ide_cdrom_driver
.gen_driver
);
1814 static int __init
ide_cdrom_init(void)
1816 printk(KERN_INFO DRV_NAME
" driver " IDECD_VERSION
"\n");
1817 return driver_register(&ide_cdrom_driver
.gen_driver
);
1820 MODULE_ALIAS("ide:*m-cdrom*");
1821 MODULE_ALIAS("ide-cd");
1822 module_init(ide_cdrom_init
);
1823 module_exit(ide_cdrom_exit
);
1824 MODULE_LICENSE("GPL");