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22
23#define DRV_NAME "ide-cd"
24#define PFX DRV_NAME ": "
25
26#define IDECD_VERSION "5.00"
27
28#include <linux/module.h>
29#include <linux/types.h>
30#include <linux/kernel.h>
31#include <linux/delay.h>
32#include <linux/timer.h>
33#include <linux/seq_file.h>
34#include <linux/slab.h>
35#include <linux/interrupt.h>
36#include <linux/errno.h>
37#include <linux/cdrom.h>
38#include <linux/ide.h>
39#include <linux/completion.h>
40#include <linux/mutex.h>
41#include <linux/bcd.h>
42
43
44#include <scsi/scsi.h>
45
46#include <linux/irq.h>
47#include <linux/io.h>
48#include <asm/byteorder.h>
49#include <linux/uaccess.h>
50#include <asm/unaligned.h>
51
52#include "ide-cd.h"
53
54static DEFINE_MUTEX(idecd_ref_mutex);
55
56static void ide_cd_release(struct device *);
57
58static struct cdrom_info *ide_cd_get(struct gendisk *disk)
59{
60 struct cdrom_info *cd = NULL;
61
62 mutex_lock(&idecd_ref_mutex);
63 cd = ide_drv_g(disk, cdrom_info);
64 if (cd) {
65 if (ide_device_get(cd->drive))
66 cd = NULL;
67 else
68 get_device(&cd->dev);
69
70 }
71 mutex_unlock(&idecd_ref_mutex);
72 return cd;
73}
74
75static void ide_cd_put(struct cdrom_info *cd)
76{
77 ide_drive_t *drive = cd->drive;
78
79 mutex_lock(&idecd_ref_mutex);
80 put_device(&cd->dev);
81 ide_device_put(drive);
82 mutex_unlock(&idecd_ref_mutex);
83}
84
85
86
87
88
89
90static void cdrom_saw_media_change(ide_drive_t *drive)
91{
92 drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
93 drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID;
94}
95
96static int cdrom_log_sense(ide_drive_t *drive, struct request *rq)
97{
98 struct request_sense *sense = &drive->sense_data;
99 int log = 0;
100
101 if (!sense || !rq || (rq->cmd_flags & REQ_QUIET))
102 return 0;
103
104 ide_debug_log(IDE_DBG_SENSE, "sense_key: 0x%x", sense->sense_key);
105
106 switch (sense->sense_key) {
107 case NO_SENSE:
108 case RECOVERED_ERROR:
109 break;
110 case NOT_READY:
111
112
113
114
115 if (sense->asc == 0x3a || sense->asc == 0x04)
116 break;
117 log = 1;
118 break;
119 case ILLEGAL_REQUEST:
120
121
122
123
124 if (rq->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24)
125 break;
126 log = 1;
127 break;
128 case UNIT_ATTENTION:
129
130
131
132
133
134 cdrom_saw_media_change(drive);
135 break;
136 default:
137 log = 1;
138 break;
139 }
140 return log;
141}
142
143static void cdrom_analyze_sense_data(ide_drive_t *drive,
144 struct request *failed_command)
145{
146 struct request_sense *sense = &drive->sense_data;
147 struct cdrom_info *info = drive->driver_data;
148 unsigned long sector;
149 unsigned long bio_sectors;
150
151 ide_debug_log(IDE_DBG_SENSE, "error_code: 0x%x, sense_key: 0x%x",
152 sense->error_code, sense->sense_key);
153
154 if (failed_command)
155 ide_debug_log(IDE_DBG_SENSE, "failed cmd: 0x%x",
156 failed_command->cmd[0]);
157
158 if (!cdrom_log_sense(drive, failed_command))
159 return;
160
161
162
163
164
165
166 if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP)
167 if (sense->sense_key == 0x05 && sense->asc == 0x24)
168 return;
169
170
171 if (sense->error_code == 0x70) {
172 switch (sense->sense_key) {
173 case MEDIUM_ERROR:
174 case VOLUME_OVERFLOW:
175 case ILLEGAL_REQUEST:
176 if (!sense->valid)
177 break;
178 if (failed_command == NULL ||
179 !blk_fs_request(failed_command))
180 break;
181 sector = (sense->information[0] << 24) |
182 (sense->information[1] << 16) |
183 (sense->information[2] << 8) |
184 (sense->information[3]);
185
186 if (queue_logical_block_size(drive->queue) == 2048)
187
188 sector <<= 2;
189
190 bio_sectors = max(bio_sectors(failed_command->bio), 4U);
191 sector &= ~(bio_sectors - 1);
192
193
194
195
196
197
198
199
200
201 if (sector < get_capacity(info->disk) &&
202 drive->probed_capacity - sector < 4 * 75)
203 set_capacity(info->disk, sector);
204 }
205 }
206
207 ide_cd_log_error(drive->name, failed_command, sense);
208}
209
210static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq)
211{
212
213
214
215
216
217
218 struct request *failed = (struct request *)rq->special;
219 void *sense = bio_data(rq->bio);
220
221 if (failed) {
222 if (failed->sense) {
223
224
225
226
227
228 memcpy(failed->sense, sense, 18);
229 failed->sense_len = rq->sense_len;
230 }
231 cdrom_analyze_sense_data(drive, failed);
232
233 if (ide_end_rq(drive, failed, -EIO, blk_rq_bytes(failed)))
234 BUG();
235 } else
236 cdrom_analyze_sense_data(drive, NULL);
237}
238
239
240
241
242
243
244
245
246
247static int ide_cd_breathe(ide_drive_t *drive, struct request *rq)
248{
249
250 struct cdrom_info *info = drive->driver_data;
251
252 if (!rq->errors)
253 info->write_timeout = jiffies + ATAPI_WAIT_WRITE_BUSY;
254
255 rq->errors = 1;
256
257 if (time_after(jiffies, info->write_timeout))
258 return 0;
259 else {
260 struct request_queue *q = drive->queue;
261 unsigned long flags;
262
263
264
265
266
267 spin_lock_irqsave(q->queue_lock, flags);
268 blk_plug_device(q);
269 spin_unlock_irqrestore(q->queue_lock, flags);
270
271 return 1;
272 }
273}
274
275
276
277
278
279
280
281static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
282{
283 ide_hwif_t *hwif = drive->hwif;
284 struct request *rq = hwif->rq;
285 int err, sense_key, do_end_request = 0;
286
287
288 err = ide_read_error(drive);
289 sense_key = err >> 4;
290
291 ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, rq->cmd_type: 0x%x, err: 0x%x, "
292 "stat 0x%x",
293 rq->cmd[0], rq->cmd_type, err, stat);
294
295 if (blk_sense_request(rq)) {
296
297
298
299
300
301 rq->cmd_flags |= REQ_FAILED;
302 return 2;
303 }
304
305
306 if (blk_pc_request(rq) && !rq->errors)
307 rq->errors = SAM_STAT_CHECK_CONDITION;
308
309 if (blk_noretry_request(rq))
310 do_end_request = 1;
311
312 switch (sense_key) {
313 case NOT_READY:
314 if (blk_fs_request(rq) && rq_data_dir(rq) == WRITE) {
315 if (ide_cd_breathe(drive, rq))
316 return 1;
317 } else {
318 cdrom_saw_media_change(drive);
319
320 if (blk_fs_request(rq) && !blk_rq_quiet(rq))
321 printk(KERN_ERR PFX "%s: tray open\n",
322 drive->name);
323 }
324 do_end_request = 1;
325 break;
326 case UNIT_ATTENTION:
327 cdrom_saw_media_change(drive);
328
329 if (blk_fs_request(rq) == 0)
330 return 0;
331
332
333
334
335
336 if (++rq->errors > ERROR_MAX)
337 do_end_request = 1;
338 break;
339 case ILLEGAL_REQUEST:
340
341
342
343
344
345
346
347 if (rq->cmd[0] == GPCMD_START_STOP_UNIT)
348 break;
349
350 case DATA_PROTECT:
351
352
353
354
355 if (!blk_rq_quiet(rq))
356 ide_dump_status(drive, "command error", stat);
357 do_end_request = 1;
358 break;
359 case MEDIUM_ERROR:
360
361
362
363
364 if (!blk_rq_quiet(rq))
365 ide_dump_status(drive, "media error "
366 "(bad sector)", stat);
367 do_end_request = 1;
368 break;
369 case BLANK_CHECK:
370
371 if (!blk_rq_quiet(rq))
372 ide_dump_status(drive, "media error (blank)",
373 stat);
374 do_end_request = 1;
375 break;
376 default:
377 if (blk_fs_request(rq) == 0)
378 break;
379 if (err & ~ATA_ABORTED) {
380
381 ide_error(drive, "cdrom_decode_status", stat);
382 return 1;
383 } else if (++rq->errors > ERROR_MAX)
384
385 do_end_request = 1;
386 }
387
388 if (blk_fs_request(rq) == 0) {
389 rq->cmd_flags |= REQ_FAILED;
390 do_end_request = 1;
391 }
392
393
394
395
396
397 if (do_end_request)
398 goto end_request;
399
400
401 if (stat & ATA_ERR)
402 return ide_queue_sense_rq(drive, NULL) ? 2 : 1;
403 return 1;
404
405end_request:
406 if (stat & ATA_ERR) {
407 hwif->rq = NULL;
408 return ide_queue_sense_rq(drive, rq) ? 2 : 1;
409 } else
410 return 2;
411}
412
413static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct ide_cmd *cmd)
414{
415 struct request *rq = cmd->rq;
416
417 ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]);
418
419
420
421
422
423 if (rq->cmd[0] == GPCMD_REQUEST_SENSE &&
424 cmd->nleft > 0 && cmd->nleft <= 5)
425 cmd->nleft = 0;
426}
427
428int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd,
429 int write, void *buffer, unsigned *bufflen,
430 struct request_sense *sense, int timeout,
431 unsigned int cmd_flags)
432{
433 struct cdrom_info *info = drive->driver_data;
434 struct request_sense local_sense;
435 int retries = 10;
436 unsigned int flags = 0;
437
438 if (!sense)
439 sense = &local_sense;
440
441 ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, "
442 "cmd_flags: 0x%x",
443 cmd[0], write, timeout, cmd_flags);
444
445
446 do {
447 struct request *rq;
448 int error;
449
450 rq = blk_get_request(drive->queue, write, __GFP_WAIT);
451
452 memcpy(rq->cmd, cmd, BLK_MAX_CDB);
453 rq->cmd_type = REQ_TYPE_ATA_PC;
454 rq->sense = sense;
455 rq->cmd_flags |= cmd_flags;
456 rq->timeout = timeout;
457 if (buffer) {
458 error = blk_rq_map_kern(drive->queue, rq, buffer,
459 *bufflen, GFP_NOIO);
460 if (error) {
461 blk_put_request(rq);
462 return error;
463 }
464 }
465
466 error = blk_execute_rq(drive->queue, info->disk, rq, 0);
467
468 if (buffer)
469 *bufflen = rq->resid_len;
470
471 flags = rq->cmd_flags;
472 blk_put_request(rq);
473
474
475
476
477
478 if (flags & REQ_FAILED) {
479
480
481
482
483 struct request_sense *reqbuf = sense;
484
485 if (reqbuf->sense_key == UNIT_ATTENTION)
486 cdrom_saw_media_change(drive);
487 else if (reqbuf->sense_key == NOT_READY &&
488 reqbuf->asc == 4 && reqbuf->ascq != 4) {
489
490
491
492
493
494 ssleep(2);
495 } else {
496
497 retries = 0;
498 }
499 --retries;
500 }
501
502
503 } while ((flags & REQ_FAILED) && retries >= 0);
504
505
506 return (flags & REQ_FAILED) ? -EIO : 0;
507}
508
509static void ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd)
510{
511 unsigned int nr_bytes = cmd->nbytes - cmd->nleft;
512
513 if (cmd->tf_flags & IDE_TFLAG_WRITE)
514 nr_bytes -= cmd->last_xfer_len;
515
516 if (nr_bytes > 0)
517 ide_complete_rq(drive, 0, nr_bytes);
518}
519
520static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
521{
522 ide_hwif_t *hwif = drive->hwif;
523 struct ide_cmd *cmd = &hwif->cmd;
524 struct request *rq = hwif->rq;
525 ide_expiry_t *expiry = NULL;
526 int dma_error = 0, dma, thislen, uptodate = 0;
527 int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc = 0;
528 int sense = blk_sense_request(rq);
529 unsigned int timeout;
530 u16 len;
531 u8 ireason, stat;
532
533 ide_debug_log(IDE_DBG_PC, "cmd: 0x%x, write: 0x%x", rq->cmd[0], write);
534
535
536 dma = drive->dma;
537 if (dma) {
538 drive->dma = 0;
539 drive->waiting_for_dma = 0;
540 dma_error = hwif->dma_ops->dma_end(drive);
541 ide_dma_unmap_sg(drive, cmd);
542 if (dma_error) {
543 printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name,
544 write ? "write" : "read");
545 ide_dma_off(drive);
546 }
547 }
548
549
550 stat = hwif->tp_ops->read_status(hwif);
551
552 if (!OK_STAT(stat, 0, BAD_R_STAT)) {
553 rc = cdrom_decode_status(drive, stat);
554 if (rc) {
555 if (rc == 2)
556 goto out_end;
557 return ide_stopped;
558 }
559 }
560
561
562 if (dma) {
563 if (dma_error)
564 return ide_error(drive, "dma error", stat);
565 uptodate = 1;
566 goto out_end;
567 }
568
569 ide_read_bcount_and_ireason(drive, &len, &ireason);
570
571 thislen = blk_fs_request(rq) ? len : cmd->nleft;
572 if (thislen > len)
573 thislen = len;
574
575 ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d",
576 stat, thislen);
577
578
579 if ((stat & ATA_DRQ) == 0) {
580 if (blk_fs_request(rq)) {
581
582
583
584
585 uptodate = 1;
586 if (cmd->nleft > 0) {
587 printk(KERN_ERR PFX "%s: %s: data underrun "
588 "(%u bytes)\n", drive->name, __func__,
589 cmd->nleft);
590 if (!write)
591 rq->cmd_flags |= REQ_FAILED;
592 uptodate = 0;
593 }
594 } else if (!blk_pc_request(rq)) {
595 ide_cd_request_sense_fixup(drive, cmd);
596
597 uptodate = cmd->nleft ? 0 : 1;
598
599
600
601
602
603 if (!(stat & ATA_ERR) && !uptodate && thislen) {
604 ide_pio_bytes(drive, cmd, write, thislen);
605 uptodate = cmd->nleft ? 0 : 1;
606 }
607
608 if (!uptodate)
609 rq->cmd_flags |= REQ_FAILED;
610 }
611 goto out_end;
612 }
613
614 rc = ide_check_ireason(drive, rq, len, ireason, write);
615 if (rc)
616 goto out_end;
617
618 cmd->last_xfer_len = 0;
619
620 ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, "
621 "ireason: 0x%x",
622 rq->cmd_type, ireason);
623
624
625 while (thislen > 0) {
626 int blen = min_t(int, thislen, cmd->nleft);
627
628 if (cmd->nleft == 0)
629 break;
630
631 ide_pio_bytes(drive, cmd, write, blen);
632 cmd->last_xfer_len += blen;
633
634 thislen -= blen;
635 len -= blen;
636
637 if (sense && write == 0)
638 rq->sense_len += blen;
639 }
640
641
642 if (len > 0) {
643 if (blk_fs_request(rq) == 0 || write == 0)
644 ide_pad_transfer(drive, write, len);
645 else {
646 printk(KERN_ERR PFX "%s: confused, missing data\n",
647 drive->name);
648 blk_dump_rq_flags(rq, "cdrom_newpc_intr");
649 }
650 }
651
652 if (blk_pc_request(rq)) {
653 timeout = rq->timeout;
654 } else {
655 timeout = ATAPI_WAIT_PC;
656 if (!blk_fs_request(rq))
657 expiry = ide_cd_expiry;
658 }
659
660 hwif->expiry = expiry;
661 ide_set_handler(drive, cdrom_newpc_intr, timeout);
662 return ide_started;
663
664out_end:
665 if (blk_pc_request(rq) && rc == 0) {
666 rq->resid_len = 0;
667 blk_end_request_all(rq, 0);
668 hwif->rq = NULL;
669 } else {
670 if (sense && uptodate)
671 ide_cd_complete_failed_rq(drive, rq);
672
673 if (blk_fs_request(rq)) {
674 if (cmd->nleft == 0)
675 uptodate = 1;
676 } else {
677 if (uptodate <= 0 && rq->errors == 0)
678 rq->errors = -EIO;
679 }
680
681 if (uptodate == 0 && rq->bio)
682 ide_cd_error_cmd(drive, cmd);
683
684
685 if (blk_fs_request(rq) == 0) {
686 rq->resid_len -= cmd->nbytes - cmd->nleft;
687 if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE))
688 rq->resid_len += cmd->last_xfer_len;
689 }
690
691 ide_complete_rq(drive, uptodate ? 0 : -EIO, blk_rq_bytes(rq));
692
693 if (sense && rc == 2)
694 ide_error(drive, "request sense failure", stat);
695 }
696 return ide_stopped;
697}
698
699static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
700{
701 struct cdrom_info *cd = drive->driver_data;
702 struct request_queue *q = drive->queue;
703 int write = rq_data_dir(rq) == WRITE;
704 unsigned short sectors_per_frame =
705 queue_logical_block_size(q) >> SECTOR_BITS;
706
707 ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, "
708 "secs_per_frame: %u",
709 rq->cmd[0], rq->cmd_flags, sectors_per_frame);
710
711 if (write) {
712
713 if (get_disk_ro(cd->disk))
714 return ide_stopped;
715 } else {
716
717
718
719
720 q->prep_rq_fn(q, rq);
721 }
722
723
724 if ((blk_rq_sectors(rq) & (sectors_per_frame - 1)) ||
725 (blk_rq_pos(rq) & (sectors_per_frame - 1)))
726 return ide_stopped;
727
728
729 drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
730
731 if (write)
732 cd->devinfo.media_written = 1;
733
734 rq->timeout = ATAPI_WAIT_PC;
735
736 return ide_started;
737}
738
739static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
740{
741
742 ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x",
743 rq->cmd[0], rq->cmd_type);
744
745 if (blk_pc_request(rq))
746 rq->cmd_flags |= REQ_QUIET;
747 else
748 rq->cmd_flags &= ~REQ_FAILED;
749
750 drive->dma = 0;
751
752
753 if (rq->bio) {
754 struct request_queue *q = drive->queue;
755 char *buf = bio_data(rq->bio);
756 unsigned int alignment;
757
758 drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
759
760
761
762
763
764
765
766 alignment = queue_dma_alignment(q) | q->dma_pad_mask;
767 if ((unsigned long)buf & alignment
768 || blk_rq_bytes(rq) & q->dma_pad_mask
769 || object_is_on_stack(buf))
770 drive->dma = 0;
771 }
772}
773
774static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
775 sector_t block)
776{
777 struct ide_cmd cmd;
778 int uptodate = 0, nsectors;
779
780 ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu",
781 rq->cmd[0], (unsigned long long)block);
782
783 if (drive->debug_mask & IDE_DBG_RQ)
784 blk_dump_rq_flags(rq, "ide_cd_do_request");
785
786 if (blk_fs_request(rq)) {
787 if (cdrom_start_rw(drive, rq) == ide_stopped)
788 goto out_end;
789 } else if (blk_sense_request(rq) || blk_pc_request(rq) ||
790 rq->cmd_type == REQ_TYPE_ATA_PC) {
791 if (!rq->timeout)
792 rq->timeout = ATAPI_WAIT_PC;
793
794 cdrom_do_block_pc(drive, rq);
795 } else if (blk_special_request(rq)) {
796
797 uptodate = 1;
798 goto out_end;
799 } else
800 BUG();
801
802
803 ide_prep_sense(drive, rq);
804
805 memset(&cmd, 0, sizeof(cmd));
806
807 if (rq_data_dir(rq))
808 cmd.tf_flags |= IDE_TFLAG_WRITE;
809
810 cmd.rq = rq;
811
812 if (blk_fs_request(rq) || blk_rq_bytes(rq)) {
813 ide_init_sg_cmd(&cmd, blk_rq_bytes(rq));
814 ide_map_sg(drive, &cmd);
815 }
816
817 return ide_issue_pc(drive, &cmd);
818out_end:
819 nsectors = blk_rq_sectors(rq);
820
821 if (nsectors == 0)
822 nsectors = 1;
823
824 ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9);
825
826 return ide_stopped;
827}
828
829
830
831
832
833
834
835
836
837
838static void msf_from_bcd(struct atapi_msf *msf)
839{
840 msf->minute = bcd2bin(msf->minute);
841 msf->second = bcd2bin(msf->second);
842 msf->frame = bcd2bin(msf->frame);
843}
844
845int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
846{
847 struct cdrom_info *info = drive->driver_data;
848 struct cdrom_device_info *cdi = &info->devinfo;
849 unsigned char cmd[BLK_MAX_CDB];
850
851 ide_debug_log(IDE_DBG_FUNC, "enter");
852
853 memset(cmd, 0, BLK_MAX_CDB);
854 cmd[0] = GPCMD_TEST_UNIT_READY;
855
856
857
858
859
860 cmd[7] = cdi->sanyo_slot % 3;
861
862 return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET);
863}
864
865static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
866 unsigned long *sectors_per_frame,
867 struct request_sense *sense)
868{
869 struct {
870 __be32 lba;
871 __be32 blocklen;
872 } capbuf;
873
874 int stat;
875 unsigned char cmd[BLK_MAX_CDB];
876 unsigned len = sizeof(capbuf);
877 u32 blocklen;
878
879 ide_debug_log(IDE_DBG_FUNC, "enter");
880
881 memset(cmd, 0, BLK_MAX_CDB);
882 cmd[0] = GPCMD_READ_CDVD_CAPACITY;
883
884 stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0,
885 REQ_QUIET);
886 if (stat)
887 return stat;
888
889
890
891
892
893
894 blocklen = be32_to_cpu(capbuf.blocklen);
895 blocklen = (blocklen >> SECTOR_BITS) << SECTOR_BITS;
896 switch (blocklen) {
897 case 512:
898 case 1024:
899 case 2048:
900 case 4096:
901 break;
902 default:
903 printk_once(KERN_ERR PFX "%s: weird block size %u; "
904 "setting default block size to 2048\n",
905 drive->name, blocklen);
906 blocklen = 2048;
907 break;
908 }
909
910 *capacity = 1 + be32_to_cpu(capbuf.lba);
911 *sectors_per_frame = blocklen >> SECTOR_BITS;
912
913 ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu",
914 *capacity, *sectors_per_frame);
915
916 return 0;
917}
918
919static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag,
920 int format, char *buf, int buflen,
921 struct request_sense *sense)
922{
923 unsigned char cmd[BLK_MAX_CDB];
924
925 ide_debug_log(IDE_DBG_FUNC, "enter");
926
927 memset(cmd, 0, BLK_MAX_CDB);
928
929 cmd[0] = GPCMD_READ_TOC_PMA_ATIP;
930 cmd[6] = trackno;
931 cmd[7] = (buflen >> 8);
932 cmd[8] = (buflen & 0xff);
933 cmd[9] = (format << 6);
934
935 if (msf_flag)
936 cmd[1] = 2;
937
938 return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET);
939}
940
941
942int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense)
943{
944 int stat, ntracks, i;
945 struct cdrom_info *info = drive->driver_data;
946 struct cdrom_device_info *cdi = &info->devinfo;
947 struct atapi_toc *toc = info->toc;
948 struct {
949 struct atapi_toc_header hdr;
950 struct atapi_toc_entry ent;
951 } ms_tmp;
952 long last_written;
953 unsigned long sectors_per_frame = SECTORS_PER_FRAME;
954
955 ide_debug_log(IDE_DBG_FUNC, "enter");
956
957 if (toc == NULL) {
958
959 toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL);
960 if (toc == NULL) {
961 printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n",
962 drive->name);
963 return -ENOMEM;
964 }
965 info->toc = toc;
966 }
967
968
969
970
971
972 (void) cdrom_check_status(drive, sense);
973
974 if (drive->atapi_flags & IDE_AFLAG_TOC_VALID)
975 return 0;
976
977
978 stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame,
979 sense);
980 if (stat)
981 toc->capacity = 0x1fffff;
982
983 set_capacity(info->disk, toc->capacity * sectors_per_frame);
984
985 drive->probed_capacity = toc->capacity * sectors_per_frame;
986
987 blk_queue_logical_block_size(drive->queue,
988 sectors_per_frame << SECTOR_BITS);
989
990
991 stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr,
992 sizeof(struct atapi_toc_header), sense);
993 if (stat)
994 return stat;
995
996 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
997 toc->hdr.first_track = bcd2bin(toc->hdr.first_track);
998 toc->hdr.last_track = bcd2bin(toc->hdr.last_track);
999 }
1000
1001 ntracks = toc->hdr.last_track - toc->hdr.first_track + 1;
1002 if (ntracks <= 0)
1003 return -EIO;
1004 if (ntracks > MAX_TRACKS)
1005 ntracks = MAX_TRACKS;
1006
1007
1008 stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0,
1009 (char *)&toc->hdr,
1010 sizeof(struct atapi_toc_header) +
1011 (ntracks + 1) *
1012 sizeof(struct atapi_toc_entry), sense);
1013
1014 if (stat && toc->hdr.first_track > 1) {
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027 ntracks = 0;
1028 stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0,
1029 (char *)&toc->hdr,
1030 sizeof(struct atapi_toc_header) +
1031 (ntracks + 1) *
1032 sizeof(struct atapi_toc_entry),
1033 sense);
1034 if (stat)
1035 return stat;
1036
1037 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
1038 toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT);
1039 toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT);
1040 } else {
1041 toc->hdr.first_track = CDROM_LEADOUT;
1042 toc->hdr.last_track = CDROM_LEADOUT;
1043 }
1044 }
1045
1046 if (stat)
1047 return stat;
1048
1049 toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length);
1050
1051 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
1052 toc->hdr.first_track = bcd2bin(toc->hdr.first_track);
1053 toc->hdr.last_track = bcd2bin(toc->hdr.last_track);
1054 }
1055
1056 for (i = 0; i <= ntracks; i++) {
1057 if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {
1058 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD)
1059 toc->ent[i].track = bcd2bin(toc->ent[i].track);
1060 msf_from_bcd(&toc->ent[i].addr.msf);
1061 }
1062 toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute,
1063 toc->ent[i].addr.msf.second,
1064 toc->ent[i].addr.msf.frame);
1065 }
1066
1067 if (toc->hdr.first_track != CDROM_LEADOUT) {
1068
1069 stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp,
1070 sizeof(ms_tmp), sense);
1071 if (stat)
1072 return stat;
1073
1074 toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba);
1075 } else {
1076 ms_tmp.hdr.last_track = CDROM_LEADOUT;
1077 ms_tmp.hdr.first_track = ms_tmp.hdr.last_track;
1078 toc->last_session_lba = msf_to_lba(0, 2, 0);
1079 }
1080
1081 if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {
1082
1083 stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp,
1084 sizeof(ms_tmp), sense);
1085 if (stat)
1086 return stat;
1087
1088 msf_from_bcd(&ms_tmp.ent.addr.msf);
1089 toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute,
1090 ms_tmp.ent.addr.msf.second,
1091 ms_tmp.ent.addr.msf.frame);
1092 }
1093
1094 toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track);
1095
1096
1097 stat = cdrom_get_last_written(cdi, &last_written);
1098 if (!stat && (last_written > toc->capacity)) {
1099 toc->capacity = last_written;
1100 set_capacity(info->disk, toc->capacity * sectors_per_frame);
1101 drive->probed_capacity = toc->capacity * sectors_per_frame;
1102 }
1103
1104
1105 drive->atapi_flags |= IDE_AFLAG_TOC_VALID;
1106
1107 return 0;
1108}
1109
1110int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf)
1111{
1112 struct cdrom_info *info = drive->driver_data;
1113 struct cdrom_device_info *cdi = &info->devinfo;
1114 struct packet_command cgc;
1115 int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE;
1116
1117 ide_debug_log(IDE_DBG_FUNC, "enter");
1118
1119 if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0)
1120 size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE;
1121
1122 init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN);
1123 do {
1124
1125 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0);
1126 if (!stat)
1127 break;
1128 } while (--attempts);
1129 return stat;
1130}
1131
1132void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf)
1133{
1134 struct cdrom_info *cd = drive->driver_data;
1135 u16 curspeed, maxspeed;
1136
1137 ide_debug_log(IDE_DBG_FUNC, "enter");
1138
1139 if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) {
1140 curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]);
1141 maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]);
1142 } else {
1143 curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]);
1144 maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]);
1145 }
1146
1147 ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u",
1148 curspeed, maxspeed);
1149
1150 cd->current_speed = DIV_ROUND_CLOSEST(curspeed, 176);
1151 cd->max_speed = DIV_ROUND_CLOSEST(maxspeed, 176);
1152}
1153
1154#define IDE_CD_CAPABILITIES \
1155 (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \
1156 CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \
1157 CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \
1158 CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \
1159 CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM)
1160
1161static struct cdrom_device_ops ide_cdrom_dops = {
1162 .open = ide_cdrom_open_real,
1163 .release = ide_cdrom_release_real,
1164 .drive_status = ide_cdrom_drive_status,
1165 .media_changed = ide_cdrom_check_media_change_real,
1166 .tray_move = ide_cdrom_tray_move,
1167 .lock_door = ide_cdrom_lock_door,
1168 .select_speed = ide_cdrom_select_speed,
1169 .get_last_session = ide_cdrom_get_last_session,
1170 .get_mcn = ide_cdrom_get_mcn,
1171 .reset = ide_cdrom_reset,
1172 .audio_ioctl = ide_cdrom_audio_ioctl,
1173 .capability = IDE_CD_CAPABILITIES,
1174 .generic_packet = ide_cdrom_packet,
1175};
1176
1177static int ide_cdrom_register(ide_drive_t *drive, int nslots)
1178{
1179 struct cdrom_info *info = drive->driver_data;
1180 struct cdrom_device_info *devinfo = &info->devinfo;
1181
1182 ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots);
1183
1184 devinfo->ops = &ide_cdrom_dops;
1185 devinfo->speed = info->current_speed;
1186 devinfo->capacity = nslots;
1187 devinfo->handle = drive;
1188 strcpy(devinfo->name, drive->name);
1189
1190 if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT)
1191 devinfo->mask |= CDC_SELECT_SPEED;
1192
1193 devinfo->disk = info->disk;
1194 return register_cdrom(devinfo);
1195}
1196
1197static int ide_cdrom_probe_capabilities(ide_drive_t *drive)
1198{
1199 struct cdrom_info *cd = drive->driver_data;
1200 struct cdrom_device_info *cdi = &cd->devinfo;
1201 u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE];
1202 mechtype_t mechtype;
1203 int nslots = 1;
1204
1205 ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx",
1206 drive->media, drive->atapi_flags);
1207
1208 cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R |
1209 CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO |
1210 CDC_MO_DRIVE | CDC_RAM);
1211
1212 if (drive->media == ide_optical) {
1213 cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM);
1214 printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n",
1215 drive->name);
1216 return nslots;
1217 }
1218
1219 if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) {
1220 drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT;
1221 cdi->mask &= ~CDC_PLAY_AUDIO;
1222 return nslots;
1223 }
1224
1225
1226
1227
1228
1229
1230
1231 cdi->handle = drive;
1232 cdi->ops = &ide_cdrom_dops;
1233
1234 if (ide_cdrom_get_capabilities(drive, buf))
1235 return 0;
1236
1237 if ((buf[8 + 6] & 0x01) == 0)
1238 drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
1239 if (buf[8 + 6] & 0x08)
1240 drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT;
1241 if (buf[8 + 3] & 0x01)
1242 cdi->mask &= ~CDC_CD_R;
1243 if (buf[8 + 3] & 0x02)
1244 cdi->mask &= ~(CDC_CD_RW | CDC_RAM);
1245 if (buf[8 + 2] & 0x38)
1246 cdi->mask &= ~CDC_DVD;
1247 if (buf[8 + 3] & 0x20)
1248 cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM);
1249 if (buf[8 + 3] & 0x10)
1250 cdi->mask &= ~CDC_DVD_R;
1251 if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK))
1252 cdi->mask &= ~CDC_PLAY_AUDIO;
1253
1254 mechtype = buf[8 + 6] >> 5;
1255 if (mechtype == mechtype_caddy ||
1256 mechtype == mechtype_popup ||
1257 (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE))
1258 cdi->mask |= CDC_CLOSE_TRAY;
1259
1260 if (cdi->sanyo_slot > 0) {
1261 cdi->mask &= ~CDC_SELECT_DISC;
1262 nslots = 3;
1263 } else if (mechtype == mechtype_individual_changer ||
1264 mechtype == mechtype_cartridge_changer) {
1265 nslots = cdrom_number_of_slots(cdi);
1266 if (nslots > 1)
1267 cdi->mask &= ~CDC_SELECT_DISC;
1268 }
1269
1270 ide_cdrom_update_speed(drive, buf);
1271
1272 printk(KERN_INFO PFX "%s: ATAPI", drive->name);
1273
1274
1275 if (cd->max_speed)
1276 printk(KERN_CONT " %dX", cd->max_speed);
1277
1278 printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM");
1279
1280 if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0)
1281 printk(KERN_CONT " DVD%s%s",
1282 (cdi->mask & CDC_DVD_R) ? "" : "-R",
1283 (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM");
1284
1285 if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0)
1286 printk(KERN_CONT " CD%s%s",
1287 (cdi->mask & CDC_CD_R) ? "" : "-R",
1288 (cdi->mask & CDC_CD_RW) ? "" : "/RW");
1289
1290 if ((cdi->mask & CDC_SELECT_DISC) == 0)
1291 printk(KERN_CONT " changer w/%d slots", nslots);
1292 else
1293 printk(KERN_CONT " drive");
1294
1295 printk(KERN_CONT ", %dkB Cache\n",
1296 be16_to_cpup((__be16 *)&buf[8 + 12]));
1297
1298 return nslots;
1299}
1300
1301
1302static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq)
1303{
1304 int hard_sect = queue_logical_block_size(q);
1305 long block = (long)blk_rq_pos(rq) / (hard_sect >> 9);
1306 unsigned long blocks = blk_rq_sectors(rq) / (hard_sect >> 9);
1307
1308 memset(rq->cmd, 0, BLK_MAX_CDB);
1309
1310 if (rq_data_dir(rq) == READ)
1311 rq->cmd[0] = GPCMD_READ_10;
1312 else
1313 rq->cmd[0] = GPCMD_WRITE_10;
1314
1315
1316
1317
1318 rq->cmd[2] = (block >> 24) & 0xff;
1319 rq->cmd[3] = (block >> 16) & 0xff;
1320 rq->cmd[4] = (block >> 8) & 0xff;
1321 rq->cmd[5] = block & 0xff;
1322
1323
1324
1325
1326 rq->cmd[7] = (blocks >> 8) & 0xff;
1327 rq->cmd[8] = blocks & 0xff;
1328 rq->cmd_len = 10;
1329 return BLKPREP_OK;
1330}
1331
1332
1333
1334
1335
1336static int ide_cdrom_prep_pc(struct request *rq)
1337{
1338 u8 *c = rq->cmd;
1339
1340
1341 if (c[0] == READ_6 || c[0] == WRITE_6) {
1342 c[8] = c[4];
1343 c[5] = c[3];
1344 c[4] = c[2];
1345 c[3] = c[1] & 0x1f;
1346 c[2] = 0;
1347 c[1] &= 0xe0;
1348 c[0] += (READ_10 - READ_6);
1349 rq->cmd_len = 10;
1350 return BLKPREP_OK;
1351 }
1352
1353
1354
1355
1356
1357
1358 if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) {
1359 rq->errors = ILLEGAL_REQUEST;
1360 return BLKPREP_KILL;
1361 }
1362
1363 return BLKPREP_OK;
1364}
1365
1366static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq)
1367{
1368 if (blk_fs_request(rq))
1369 return ide_cdrom_prep_fs(q, rq);
1370 else if (blk_pc_request(rq))
1371 return ide_cdrom_prep_pc(rq);
1372
1373 return 0;
1374}
1375
1376struct cd_list_entry {
1377 const char *id_model;
1378 const char *id_firmware;
1379 unsigned int cd_flags;
1380};
1381
1382#ifdef CONFIG_IDE_PROC_FS
1383static sector_t ide_cdrom_capacity(ide_drive_t *drive)
1384{
1385 unsigned long capacity, sectors_per_frame;
1386
1387 if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL))
1388 return 0;
1389
1390 return capacity * sectors_per_frame;
1391}
1392
1393static int idecd_capacity_proc_show(struct seq_file *m, void *v)
1394{
1395 ide_drive_t *drive = m->private;
1396
1397 seq_printf(m, "%llu\n", (long long)ide_cdrom_capacity(drive));
1398 return 0;
1399}
1400
1401static int idecd_capacity_proc_open(struct inode *inode, struct file *file)
1402{
1403 return single_open(file, idecd_capacity_proc_show, PDE(inode)->data);
1404}
1405
1406static const struct file_operations idecd_capacity_proc_fops = {
1407 .owner = THIS_MODULE,
1408 .open = idecd_capacity_proc_open,
1409 .read = seq_read,
1410 .llseek = seq_lseek,
1411 .release = single_release,
1412};
1413
1414static ide_proc_entry_t idecd_proc[] = {
1415 { "capacity", S_IFREG|S_IRUGO, &idecd_capacity_proc_fops },
1416 {}
1417};
1418
1419static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive)
1420{
1421 return idecd_proc;
1422}
1423
1424static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive)
1425{
1426 return NULL;
1427}
1428#endif
1429
1430static const struct cd_list_entry ide_cd_quirks_list[] = {
1431
1432 { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT },
1433
1434 { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD |
1435 IDE_AFLAG_PRE_ATAPI12, },
1436
1437 { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, },
1438
1439 { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, },
1440
1441
1442
1443
1444 { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD },
1445 { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD },
1446 { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD },
1447
1448 { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 },
1449
1450
1451
1452
1453 { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE },
1454 { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE },
1455
1456 { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS },
1457
1458
1459
1460
1461 { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1462 { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1463 { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1464 { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1465 { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1466 { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1467 { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE },
1468 { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE },
1469 { NULL, NULL, 0 }
1470};
1471
1472static unsigned int ide_cd_flags(u16 *id)
1473{
1474 const struct cd_list_entry *cle = ide_cd_quirks_list;
1475
1476 while (cle->id_model) {
1477 if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 &&
1478 (cle->id_firmware == NULL ||
1479 strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware)))
1480 return cle->cd_flags;
1481 cle++;
1482 }
1483
1484 return 0;
1485}
1486
1487static int ide_cdrom_setup(ide_drive_t *drive)
1488{
1489 struct cdrom_info *cd = drive->driver_data;
1490 struct cdrom_device_info *cdi = &cd->devinfo;
1491 struct request_queue *q = drive->queue;
1492 u16 *id = drive->id;
1493 char *fw_rev = (char *)&id[ATA_ID_FW_REV];
1494 int nslots;
1495
1496 ide_debug_log(IDE_DBG_PROBE, "enter");
1497
1498 blk_queue_prep_rq(q, ide_cdrom_prep_fn);
1499 blk_queue_dma_alignment(q, 31);
1500 blk_queue_update_dma_pad(q, 15);
1501
1502 q->unplug_delay = max((1 * HZ) / 1000, 1);
1503
1504 drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
1505 drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id);
1506
1507 if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) &&
1508 fw_rev[4] == '1' && fw_rev[6] <= '2')
1509 drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD |
1510 IDE_AFLAG_TOCADDR_AS_BCD);
1511 else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) &&
1512 fw_rev[4] == '1' && fw_rev[6] <= '2')
1513 drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD;
1514 else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD)
1515
1516 cdi->sanyo_slot = 3;
1517
1518 nslots = ide_cdrom_probe_capabilities(drive);
1519
1520 blk_queue_logical_block_size(q, CD_FRAMESIZE);
1521
1522 if (ide_cdrom_register(drive, nslots)) {
1523 printk(KERN_ERR PFX "%s: %s failed to register device with the"
1524 " cdrom driver.\n", drive->name, __func__);
1525 cd->devinfo.handle = NULL;
1526 return 1;
1527 }
1528
1529 ide_proc_register_driver(drive, cd->driver);
1530 return 0;
1531}
1532
1533static void ide_cd_remove(ide_drive_t *drive)
1534{
1535 struct cdrom_info *info = drive->driver_data;
1536
1537 ide_debug_log(IDE_DBG_FUNC, "enter");
1538
1539 ide_proc_unregister_driver(drive, info->driver);
1540 device_del(&info->dev);
1541 del_gendisk(info->disk);
1542
1543 mutex_lock(&idecd_ref_mutex);
1544 put_device(&info->dev);
1545 mutex_unlock(&idecd_ref_mutex);
1546}
1547
1548static void ide_cd_release(struct device *dev)
1549{
1550 struct cdrom_info *info = to_ide_drv(dev, cdrom_info);
1551 struct cdrom_device_info *devinfo = &info->devinfo;
1552 ide_drive_t *drive = info->drive;
1553 struct gendisk *g = info->disk;
1554
1555 ide_debug_log(IDE_DBG_FUNC, "enter");
1556
1557 kfree(info->toc);
1558 if (devinfo->handle == drive)
1559 unregister_cdrom(devinfo);
1560 drive->driver_data = NULL;
1561 blk_queue_prep_rq(drive->queue, NULL);
1562 g->private_data = NULL;
1563 put_disk(g);
1564 kfree(info);
1565}
1566
1567static int ide_cd_probe(ide_drive_t *);
1568
1569static struct ide_driver ide_cdrom_driver = {
1570 .gen_driver = {
1571 .owner = THIS_MODULE,
1572 .name = "ide-cdrom",
1573 .bus = &ide_bus_type,
1574 },
1575 .probe = ide_cd_probe,
1576 .remove = ide_cd_remove,
1577 .version = IDECD_VERSION,
1578 .do_request = ide_cd_do_request,
1579#ifdef CONFIG_IDE_PROC_FS
1580 .proc_entries = ide_cd_proc_entries,
1581 .proc_devsets = ide_cd_proc_devsets,
1582#endif
1583};
1584
1585static int idecd_open(struct block_device *bdev, fmode_t mode)
1586{
1587 struct cdrom_info *info = ide_cd_get(bdev->bd_disk);
1588 int rc = -ENOMEM;
1589
1590 if (!info)
1591 return -ENXIO;
1592
1593 rc = cdrom_open(&info->devinfo, bdev, mode);
1594
1595 if (rc < 0)
1596 ide_cd_put(info);
1597
1598 return rc;
1599}
1600
1601static int idecd_release(struct gendisk *disk, fmode_t mode)
1602{
1603 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
1604
1605 cdrom_release(&info->devinfo, mode);
1606
1607 ide_cd_put(info);
1608
1609 return 0;
1610}
1611
1612static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg)
1613{
1614 struct packet_command cgc;
1615 char buffer[16];
1616 int stat;
1617 char spindown;
1618
1619 if (copy_from_user(&spindown, (void __user *)arg, sizeof(char)))
1620 return -EFAULT;
1621
1622 init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
1623
1624 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0);
1625 if (stat)
1626 return stat;
1627
1628 buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f);
1629 return cdrom_mode_select(cdi, &cgc);
1630}
1631
1632static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg)
1633{
1634 struct packet_command cgc;
1635 char buffer[16];
1636 int stat;
1637 char spindown;
1638
1639 init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
1640
1641 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0);
1642 if (stat)
1643 return stat;
1644
1645 spindown = buffer[11] & 0x0f;
1646 if (copy_to_user((void __user *)arg, &spindown, sizeof(char)))
1647 return -EFAULT;
1648 return 0;
1649}
1650
1651static int idecd_ioctl(struct block_device *bdev, fmode_t mode,
1652 unsigned int cmd, unsigned long arg)
1653{
1654 struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info);
1655 int err;
1656
1657 switch (cmd) {
1658 case CDROMSETSPINDOWN:
1659 return idecd_set_spindown(&info->devinfo, arg);
1660 case CDROMGETSPINDOWN:
1661 return idecd_get_spindown(&info->devinfo, arg);
1662 default:
1663 break;
1664 }
1665
1666 err = generic_ide_ioctl(info->drive, bdev, cmd, arg);
1667 if (err == -EINVAL)
1668 err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg);
1669
1670 return err;
1671}
1672
1673static int idecd_media_changed(struct gendisk *disk)
1674{
1675 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
1676 return cdrom_media_changed(&info->devinfo);
1677}
1678
1679static int idecd_revalidate_disk(struct gendisk *disk)
1680{
1681 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
1682 struct request_sense sense;
1683
1684 ide_cd_read_toc(info->drive, &sense);
1685
1686 return 0;
1687}
1688
1689static const struct block_device_operations idecd_ops = {
1690 .owner = THIS_MODULE,
1691 .open = idecd_open,
1692 .release = idecd_release,
1693 .locked_ioctl = idecd_ioctl,
1694 .media_changed = idecd_media_changed,
1695 .revalidate_disk = idecd_revalidate_disk
1696};
1697
1698
1699static unsigned long debug_mask;
1700module_param(debug_mask, ulong, 0644);
1701
1702MODULE_DESCRIPTION("ATAPI CD-ROM Driver");
1703
1704static int ide_cd_probe(ide_drive_t *drive)
1705{
1706 struct cdrom_info *info;
1707 struct gendisk *g;
1708 struct request_sense sense;
1709
1710 ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x",
1711 drive->driver_req, drive->media);
1712
1713 if (!strstr("ide-cdrom", drive->driver_req))
1714 goto failed;
1715
1716 if (drive->media != ide_cdrom && drive->media != ide_optical)
1717 goto failed;
1718
1719 drive->debug_mask = debug_mask;
1720 drive->irq_handler = cdrom_newpc_intr;
1721
1722 info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL);
1723 if (info == NULL) {
1724 printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n",
1725 drive->name);
1726 goto failed;
1727 }
1728
1729 g = alloc_disk(1 << PARTN_BITS);
1730 if (!g)
1731 goto out_free_cd;
1732
1733 ide_init_disk(g, drive);
1734
1735 info->dev.parent = &drive->gendev;
1736 info->dev.release = ide_cd_release;
1737 dev_set_name(&info->dev, dev_name(&drive->gendev));
1738
1739 if (device_register(&info->dev))
1740 goto out_free_disk;
1741
1742 info->drive = drive;
1743 info->driver = &ide_cdrom_driver;
1744 info->disk = g;
1745
1746 g->private_data = &info->driver;
1747
1748 drive->driver_data = info;
1749
1750 g->minors = 1;
1751 g->driverfs_dev = &drive->gendev;
1752 g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;
1753 if (ide_cdrom_setup(drive)) {
1754 put_device(&info->dev);
1755 goto failed;
1756 }
1757
1758 ide_cd_read_toc(drive, &sense);
1759 g->fops = &idecd_ops;
1760 g->flags |= GENHD_FL_REMOVABLE;
1761 add_disk(g);
1762 return 0;
1763
1764out_free_disk:
1765 put_disk(g);
1766out_free_cd:
1767 kfree(info);
1768failed:
1769 return -ENODEV;
1770}
1771
1772static void __exit ide_cdrom_exit(void)
1773{
1774 driver_unregister(&ide_cdrom_driver.gen_driver);
1775}
1776
1777static int __init ide_cdrom_init(void)
1778{
1779 printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n");
1780 return driver_register(&ide_cdrom_driver.gen_driver);
1781}
1782
1783MODULE_ALIAS("ide:*m-cdrom*");
1784MODULE_ALIAS("ide-cd");
1785module_init(ide_cdrom_init);
1786module_exit(ide_cdrom_exit);
1787MODULE_LICENSE("GPL");
1788