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 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/delay.h>
32 #include <linux/timer.h>
33 #include <linux/slab.h>
34 #include <linux/interrupt.h>
35 #include <linux/errno.h>
36 #include <linux/cdrom.h>
37 #include <linux/ide.h>
38 #include <linux/completion.h>
39 #include <linux/mutex.h>
40 #include <linux/bcd.h>
42 /* For SCSI -> ATAPI command conversion */
43 #include <scsi/scsi.h>
45 #include <linux/irq.h>
47 #include <asm/byteorder.h>
48 #include <linux/uaccess.h>
49 #include <asm/unaligned.h>
53 static DEFINE_MUTEX(idecd_ref_mutex);
55 static void ide_cd_release(struct device *);
57 static struct cdrom_info *ide_cd_get(struct gendisk *disk)
59 struct cdrom_info *cd = NULL;
61 mutex_lock(&idecd_ref_mutex);
62 cd = ide_drv_g(disk, cdrom_info);
64 if (ide_device_get(cd->drive))
70 mutex_unlock(&idecd_ref_mutex);
74 static void ide_cd_put(struct cdrom_info *cd)
76 ide_drive_t *drive = cd->drive;
78 mutex_lock(&idecd_ref_mutex);
80 ide_device_put(drive);
81 mutex_unlock(&idecd_ref_mutex);
85 * Generic packet command support and error handling routines.
88 /* Mark that we've seen a media change and invalidate our internal buffers. */
89 static void cdrom_saw_media_change(ide_drive_t *drive)
91 drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
92 drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID;
95 static int cdrom_log_sense(ide_drive_t *drive, struct request *rq,
96 struct request_sense *sense)
100 ide_debug_log(IDE_DBG_SENSE, "sense_key: 0x%x", sense->sense_key);
102 if (!sense || !rq || (rq->cmd_flags & REQ_QUIET))
105 switch (sense->sense_key) {
107 case RECOVERED_ERROR:
111 * don't care about tray state messages for e.g. capacity
112 * commands or in-progress or becoming ready
114 if (sense->asc == 0x3a || sense->asc == 0x04)
118 case ILLEGAL_REQUEST:
120 * don't log START_STOP unit with LoEj set, since we cannot
121 * reliably check if drive can auto-close
123 if (rq->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24)
129 * Make good and sure we've seen this potential media change.
130 * Some drives (i.e. Creative) fail to present the correct sense
131 * key in the error register.
133 cdrom_saw_media_change(drive);
142 static void cdrom_analyze_sense_data(ide_drive_t *drive,
143 struct request *failed_command,
144 struct request_sense *sense)
146 unsigned long sector;
147 unsigned long bio_sectors;
148 struct cdrom_info *info = drive->driver_data;
150 ide_debug_log(IDE_DBG_SENSE, "error_code: 0x%x, sense_key: 0x%x",
151 sense->error_code, sense->sense_key);
154 ide_debug_log(IDE_DBG_SENSE, "failed cmd: 0x%x",
155 failed_command->cmd[0]);
157 if (!cdrom_log_sense(drive, failed_command, sense))
161 * If a read toc is executed for a CD-R or CD-RW medium where the first
162 * toc has not been recorded yet, it will fail with 05/24/00 (which is a
165 if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP)
166 if (sense->sense_key == 0x05 && sense->asc == 0x24)
170 if (sense->error_code == 0x70) {
171 switch (sense->sense_key) {
173 case VOLUME_OVERFLOW:
174 case ILLEGAL_REQUEST:
177 if (failed_command == NULL ||
178 !blk_fs_request(failed_command))
180 sector = (sense->information[0] << 24) |
181 (sense->information[1] << 16) |
182 (sense->information[2] << 8) |
183 (sense->information[3]);
185 if (drive->queue->hardsect_size == 2048)
186 /* device sector size is 2K */
189 bio_sectors = max(bio_sectors(failed_command->bio), 4U);
190 sector &= ~(bio_sectors - 1);
193 * The SCSI specification allows for the value
194 * returned by READ CAPACITY to be up to 75 2K
195 * sectors past the last readable block.
196 * Therefore, if we hit a medium error within the
197 * last 75 2K sectors, we decrease the saved size
200 if (sector < get_capacity(info->disk) &&
201 drive->probed_capacity - sector < 4 * 75)
202 set_capacity(info->disk, sector);
206 ide_cd_log_error(drive->name, failed_command, sense);
209 static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense,
210 struct request *failed_command)
212 struct cdrom_info *info = drive->driver_data;
213 struct request *rq = &drive->request_sense_rq;
215 ide_debug_log(IDE_DBG_SENSE, "enter");
218 sense = &info->sense_data;
220 /* stuff the sense request in front of our current request */
221 blk_rq_init(NULL, rq);
222 rq->cmd_type = REQ_TYPE_ATA_PC;
223 rq->rq_disk = info->disk;
226 rq->cmd[0] = GPCMD_REQUEST_SENSE;
230 rq->cmd_type = REQ_TYPE_SENSE;
231 rq->cmd_flags |= REQ_PREEMPT;
233 /* NOTE! Save the failed command in "rq->buffer" */
234 rq->buffer = (void *) failed_command;
237 ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x",
238 failed_command->cmd[0]);
240 drive->hwif->rq = NULL;
242 elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0);
245 static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq)
248 * For REQ_TYPE_SENSE, "rq->buffer" points to the original
251 struct request *failed = (struct request *)rq->buffer;
252 struct cdrom_info *info = drive->driver_data;
253 void *sense = &info->sense_data;
257 sense = failed->sense;
258 failed->sense_len = rq->sense_len;
260 cdrom_analyze_sense_data(drive, failed, sense);
262 if (ide_end_rq(drive, failed, -EIO, blk_rq_bytes(failed)))
265 cdrom_analyze_sense_data(drive, NULL, sense);
270 * 0: if the request should be continued.
271 * 1: if the request will be going through error recovery.
272 * 2: if the request should be ended.
274 static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret)
276 ide_hwif_t *hwif = drive->hwif;
277 struct request *rq = hwif->rq;
278 int stat, err, sense_key;
280 /* check for errors */
281 stat = hwif->tp_ops->read_status(hwif);
286 if (OK_STAT(stat, good_stat, BAD_R_STAT))
289 /* get the IDE error register */
290 err = ide_read_error(drive);
291 sense_key = err >> 4;
293 ide_debug_log(IDE_DBG_RQ, "stat: 0x%x, good_stat: 0x%x, cmd[0]: 0x%x, "
294 "rq->cmd_type: 0x%x, err: 0x%x",
295 stat, good_stat, rq->cmd[0], rq->cmd_type,
298 if (blk_sense_request(rq)) {
300 * We got an error trying to get sense info from the drive
301 * (probably while trying to recover from a former error).
304 rq->cmd_flags |= REQ_FAILED;
306 } else if (blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) {
307 /* All other functions, except for READ. */
310 * if we have an error, pass back CHECK_CONDITION as the
313 if (blk_pc_request(rq) && !rq->errors)
314 rq->errors = SAM_STAT_CHECK_CONDITION;
316 /* check for tray open */
317 if (sense_key == NOT_READY) {
318 cdrom_saw_media_change(drive);
319 } else if (sense_key == UNIT_ATTENTION) {
320 /* check for media change */
321 cdrom_saw_media_change(drive);
323 } else if (sense_key == ILLEGAL_REQUEST &&
324 rq->cmd[0] == GPCMD_START_STOP_UNIT) {
326 * Don't print error message for this condition--
327 * SFF8090i indicates that 5/24/00 is the correct
328 * response to a request to close the tray if the
329 * drive doesn't have that capability.
330 * cdrom_log_sense() knows this!
332 } else if (!(rq->cmd_flags & REQ_QUIET)) {
333 /* otherwise, print an error */
334 ide_dump_status(drive, "packet command error", stat);
337 rq->cmd_flags |= REQ_FAILED;
340 * instead of playing games with moving completions around,
341 * remove failed request completely and end it when the
342 * request sense has completed
346 } else if (blk_fs_request(rq)) {
347 int do_end_request = 0;
349 /* handle errors from READ and WRITE requests */
351 if (blk_noretry_request(rq))
354 if (sense_key == NOT_READY) {
356 if (rq_data_dir(rq) == READ) {
357 cdrom_saw_media_change(drive);
359 /* fail the request */
360 printk(KERN_ERR PFX "%s: tray open\n",
364 struct cdrom_info *info = drive->driver_data;
367 * Allow the drive 5 seconds to recover, some
368 * devices will return this error while flushing
372 info->write_timeout = jiffies +
373 ATAPI_WAIT_WRITE_BUSY;
375 if (time_after(jiffies, info->write_timeout))
378 struct request_queue *q = drive->queue;
382 * take a breather relying on the unplug
383 * timer to kick us again
385 spin_lock_irqsave(q->queue_lock, flags);
387 spin_unlock_irqrestore(q->queue_lock, flags);
392 } else if (sense_key == UNIT_ATTENTION) {
394 cdrom_saw_media_change(drive);
397 * Arrange to retry the request but be sure to give up
398 * if we've retried too many times.
400 if (++rq->errors > ERROR_MAX)
402 } else if (sense_key == ILLEGAL_REQUEST ||
403 sense_key == DATA_PROTECT) {
405 * No point in retrying after an illegal request or data
408 ide_dump_status(drive, "command error", stat);
410 } else if (sense_key == MEDIUM_ERROR) {
412 * No point in re-trying a zillion times on a bad
413 * sector. If we got here the error is not correctable.
415 ide_dump_status(drive, "media error (bad sector)",
418 } else if (sense_key == BLANK_CHECK) {
419 /* disk appears blank ?? */
420 ide_dump_status(drive, "media error (blank)", stat);
422 } else if ((err & ~ATA_ABORTED) != 0) {
423 /* go to the default handler for other errors */
424 ide_error(drive, "cdrom_decode_status", stat);
426 } else if ((++rq->errors > ERROR_MAX)) {
427 /* we've racked up too many retries, abort */
432 * End a request through request sense analysis when we have
433 * sense data. We need this in order to perform end of media
440 * If we got a CHECK_CONDITION status, queue
441 * a request sense command.
444 cdrom_queue_request_sense(drive, NULL, NULL);
447 blk_dump_rq_flags(rq, PFX "bad rq");
452 if (stat & ATA_ERR) {
453 struct request_queue *q = drive->queue;
456 spin_lock_irqsave(q->queue_lock, flags);
457 blkdev_dequeue_request(rq);
458 spin_unlock_irqrestore(q->queue_lock, flags);
462 cdrom_queue_request_sense(drive, rq->sense, rq);
469 * Check the contents of the interrupt reason register from the cdrom
470 * and attempt to recover if there are problems. Returns 0 if everything's
471 * ok; nonzero if the request has been terminated.
473 static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq,
474 int len, int ireason, int rw)
476 ide_hwif_t *hwif = drive->hwif;
478 ide_debug_log(IDE_DBG_FUNC, "ireason: 0x%x, rw: 0x%x", ireason, rw);
481 * ireason == 0: the drive wants to receive data from us
482 * ireason == 2: the drive is expecting to transfer data to us
484 if (ireason == (!rw << 1))
486 else if (ireason == (rw << 1)) {
489 printk(KERN_ERR PFX "%s: %s: wrong transfer direction!\n",
490 drive->name, __func__);
492 ide_pad_transfer(drive, rw, len);
493 } else if (rw == 0 && ireason == 1) {
495 * Some drives (ASUS) seem to tell us that status info is
496 * available. Just get it and ignore.
498 (void)hwif->tp_ops->read_status(hwif);
501 /* drive wants a command packet, or invalid ireason... */
502 printk(KERN_ERR PFX "%s: %s: bad interrupt reason 0x%02x\n",
503 drive->name, __func__, ireason);
506 if (rq->cmd_type == REQ_TYPE_ATA_PC)
507 rq->cmd_flags |= REQ_FAILED;
512 static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive,
515 ide_debug_log(IDE_DBG_RQ, "rq->cmd_flags: 0x%x", rq->cmd_flags);
517 /* set up the command */
518 rq->timeout = ATAPI_WAIT_PC;
523 static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct request *rq)
525 ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]);
528 * Some of the trailing request sense fields are optional,
529 * and some drives don't send them. Sigh.
531 if (rq->cmd[0] == GPCMD_REQUEST_SENSE &&
532 rq->data_len > 0 && rq->data_len <= 5)
533 while (rq->data_len > 0) {
534 *(u8 *)rq->data++ = 0;
539 int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd,
540 int write, void *buffer, unsigned *bufflen,
541 struct request_sense *sense, int timeout,
542 unsigned int cmd_flags)
544 struct cdrom_info *info = drive->driver_data;
545 struct request_sense local_sense;
547 unsigned int flags = 0;
550 sense = &local_sense;
552 ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, "
554 cmd[0], write, timeout, cmd_flags);
556 /* start of retry loop */
561 rq = blk_get_request(drive->queue, write, __GFP_WAIT);
563 memcpy(rq->cmd, cmd, BLK_MAX_CDB);
564 rq->cmd_type = REQ_TYPE_ATA_PC;
566 rq->cmd_flags |= cmd_flags;
567 rq->timeout = timeout;
570 rq->data_len = *bufflen;
573 error = blk_execute_rq(drive->queue, info->disk, rq, 0);
576 *bufflen = rq->data_len;
578 flags = rq->cmd_flags;
582 * FIXME: we should probably abort/retry or something in case of
585 if (flags & REQ_FAILED) {
587 * The request failed. Retry if it was due to a unit
588 * attention status (usually means media was changed).
590 struct request_sense *reqbuf = sense;
592 if (reqbuf->sense_key == UNIT_ATTENTION)
593 cdrom_saw_media_change(drive);
594 else if (reqbuf->sense_key == NOT_READY &&
595 reqbuf->asc == 4 && reqbuf->ascq != 4) {
597 * The drive is in the process of loading
598 * a disk. Retry, but wait a little to give
599 * the drive time to complete the load.
603 /* otherwise, don't retry */
609 /* end of retry loop */
610 } while ((flags & REQ_FAILED) && retries >= 0);
612 /* return an error if the command failed */
613 return (flags & REQ_FAILED) ? -EIO : 0;
616 static void ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd)
618 unsigned int nr_bytes = cmd->nbytes - cmd->nleft;
620 if (cmd->tf_flags & IDE_TFLAG_WRITE)
621 nr_bytes -= cmd->last_xfer_len;
624 ide_complete_rq(drive, 0, nr_bytes);
628 * Called from blk_end_request_callback() after the data of the request is
629 * completed and before the request itself is completed. By returning value '1',
630 * blk_end_request_callback() returns immediately without completing it.
632 static int cdrom_newpc_intr_dummy_cb(struct request *rq)
637 static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
639 ide_hwif_t *hwif = drive->hwif;
640 struct ide_cmd *cmd = &hwif->cmd;
641 struct request *rq = hwif->rq;
642 xfer_func_t *xferfunc;
643 ide_expiry_t *expiry = NULL;
644 int dma_error = 0, dma, stat, thislen, uptodate = 0;
645 int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc, nsectors;
646 int sense = blk_sense_request(rq);
647 unsigned int timeout;
651 ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x",
654 /* check for errors */
658 dma_error = hwif->dma_ops->dma_end(drive);
660 printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name,
661 write ? "write" : "read");
666 rc = cdrom_decode_status(drive, 0, &stat);
673 /* using dma, transfer is complete now */
676 return ide_error(drive, "dma error", stat);
677 if (blk_fs_request(rq)) {
678 ide_complete_rq(drive, 0, rq->nr_sectors
679 ? (rq->nr_sectors << 9) : ide_rq_bytes(rq));
681 } else if (rq->cmd_type == REQ_TYPE_ATA_PC && !rq->bio) {
682 ide_complete_rq(drive, 0, 512);
685 if (blk_pc_request(rq) == 0 && uptodate == 0)
686 rq->cmd_flags |= REQ_FAILED;
690 ide_read_bcount_and_ireason(drive, &len, &ireason);
692 thislen = blk_fs_request(rq) ? len : rq->data_len;
696 ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d",
699 /* If DRQ is clear, the command has completed. */
700 if ((stat & ATA_DRQ) == 0) {
701 if (blk_fs_request(rq)) {
703 * If we're not done reading/writing, complain.
704 * Otherwise, complete the command normally.
707 if (cmd->nleft > 0) {
708 printk(KERN_ERR PFX "%s: %s: data underrun "
709 "(%u bytes)\n", drive->name, __func__,
712 rq->cmd_flags |= REQ_FAILED;
715 } else if (!blk_pc_request(rq)) {
716 ide_cd_request_sense_fixup(drive, rq);
717 /* complain if we still have data left to transfer */
718 uptodate = rq->data_len ? 0 : 1;
720 rq->cmd_flags |= REQ_FAILED;
725 /* check which way to transfer data */
726 rc = ide_cd_check_ireason(drive, rq, len, ireason, write);
730 cmd->last_xfer_len = 0;
734 xferfunc = hwif->tp_ops->output_data;
737 xferfunc = hwif->tp_ops->input_data;
740 ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, "
742 rq->cmd_type, ireason);
745 while (thislen > 0) {
746 u8 *ptr = blk_fs_request(rq) ? NULL : rq->data;
747 int blen = rq->data_len;
751 if (blk_fs_request(rq)) {
752 blen = min_t(int, thislen, cmd->nleft);
754 ptr = bio_data(rq->bio);
755 blen = bio_iovec(rq->bio)->bv_len;
759 if ((blk_fs_request(rq) && cmd->nleft == 0) ||
760 (blk_fs_request(rq) == 0 && ptr == NULL)) {
761 if (blk_fs_request(rq) && !write)
763 * If the buffers are full, pipe the rest into
766 ide_pad_transfer(drive, 0, thislen);
768 printk(KERN_ERR PFX "%s: confused, missing data\n",
770 blk_dump_rq_flags(rq, rq_data_dir(rq)
771 ? "cdrom_newpc_intr, write"
772 : "cdrom_newpc_intr, read");
780 if (blk_fs_request(rq)) {
781 ide_pio_bytes(drive, cmd, write, blen);
782 cmd->last_xfer_len += blen;
784 xferfunc(drive, NULL, ptr, blen);
789 if (blk_fs_request(rq) == 0) {
790 rq->data_len -= blen;
793 * The request can't be completed until DRQ is cleared.
794 * So complete the data, but don't complete the request
795 * using the dummy function for the callback feature
796 * of blk_end_request_callback().
799 blk_end_request_callback(rq, 0, blen,
800 cdrom_newpc_intr_dummy_cb);
804 if (sense && write == 0)
805 rq->sense_len += blen;
808 /* pad, if necessary */
809 if (!blk_fs_request(rq) && len > 0)
810 ide_pad_transfer(drive, write, len);
812 if (blk_pc_request(rq)) {
813 timeout = rq->timeout;
815 timeout = ATAPI_WAIT_PC;
816 if (!blk_fs_request(rq))
817 expiry = ide_cd_expiry;
820 hwif->expiry = expiry;
821 ide_set_handler(drive, cdrom_newpc_intr, timeout);
825 if (blk_pc_request(rq) && rc == 0) {
826 unsigned int dlen = rq->data_len;
831 if (blk_end_request(rq, 0, dlen))
836 if (sense && uptodate)
837 ide_cd_complete_failed_rq(drive, rq);
839 if (blk_fs_request(rq)) {
843 ide_cd_error_cmd(drive, cmd);
845 if (uptodate <= 0 && rq->errors == 0)
849 /* make sure it's fully ended */
850 if (blk_pc_request(rq))
851 nsectors = (rq->data_len + 511) >> 9;
853 nsectors = rq->hard_nr_sectors;
858 ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9);
860 if (sense && rc == 2)
861 ide_error(drive, "request sense failure", stat);
866 static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
868 struct cdrom_info *cd = drive->driver_data;
869 struct request_queue *q = drive->queue;
870 int write = rq_data_dir(rq) == WRITE;
871 unsigned short sectors_per_frame =
872 queue_hardsect_size(q) >> SECTOR_BITS;
874 ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, write: 0x%x, "
875 "secs_per_frame: %u",
876 rq->cmd[0], write, sectors_per_frame);
879 /* disk has become write protected */
880 if (get_disk_ro(cd->disk))
884 * We may be retrying this request after an error. Fix up any
885 * weirdness which might be present in the request packet.
887 q->prep_rq_fn(q, rq);
890 /* fs requests *must* be hardware frame aligned */
891 if ((rq->nr_sectors & (sectors_per_frame - 1)) ||
892 (rq->sector & (sectors_per_frame - 1)))
895 /* use DMA, if possible */
896 drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
899 cd->devinfo.media_written = 1;
904 static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
907 ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x",
908 rq->cmd[0], rq->cmd_type);
910 if (blk_pc_request(rq))
911 rq->cmd_flags |= REQ_QUIET;
913 rq->cmd_flags &= ~REQ_FAILED;
918 if (rq->bio || ((rq->cmd_type == REQ_TYPE_ATA_PC) && rq->data_len)) {
919 struct request_queue *q = drive->queue;
920 unsigned int alignment;
924 buf = bio_data(rq->bio);
928 drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
931 * check if dma is safe
933 * NOTE! The "len" and "addr" checks should possibly have
936 alignment = queue_dma_alignment(q) | q->dma_pad_mask;
937 if ((unsigned long)buf & alignment
938 || rq->data_len & q->dma_pad_mask
939 || object_is_on_stack(buf))
944 static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
948 int uptodate = 0, nsectors;
950 ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu",
951 rq->cmd[0], (unsigned long long)block);
953 if (drive->debug_mask & IDE_DBG_RQ)
954 blk_dump_rq_flags(rq, "ide_cd_do_request");
956 if (blk_fs_request(rq)) {
957 if (cdrom_start_rw(drive, rq) == ide_stopped ||
958 ide_cd_prepare_rw_request(drive, rq) == ide_stopped) {
961 } else if (blk_sense_request(rq) || blk_pc_request(rq) ||
962 rq->cmd_type == REQ_TYPE_ATA_PC) {
964 rq->timeout = ATAPI_WAIT_PC;
966 cdrom_do_block_pc(drive, rq);
967 } else if (blk_special_request(rq)) {
968 /* right now this can only be a reset... */
972 blk_dump_rq_flags(rq, DRV_NAME " bad flags");
978 memset(&cmd, 0, sizeof(cmd));
981 cmd.tf_flags |= IDE_TFLAG_WRITE;
985 if (blk_fs_request(rq)) {
986 ide_init_sg_cmd(&cmd, rq->nr_sectors << 9);
987 ide_map_sg(drive, &cmd);
990 return ide_issue_pc(drive, &cmd);
992 nsectors = rq->hard_nr_sectors;
997 ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9);
1005 * Routines which queue packet commands take as a final argument a pointer to a
1006 * request_sense struct. If execution of the command results in an error with a
1007 * CHECK CONDITION status, this structure will be filled with the results of the
1008 * subsequent request sense command. The pointer can also be NULL, in which case
1009 * no sense information is returned.
1011 static void msf_from_bcd(struct atapi_msf *msf)
1013 msf->minute = bcd2bin(msf->minute);
1014 msf->second = bcd2bin(msf->second);
1015 msf->frame = bcd2bin(msf->frame);
1018 int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
1020 struct cdrom_info *info = drive->driver_data;
1021 struct cdrom_device_info *cdi = &info->devinfo;
1022 unsigned char cmd[BLK_MAX_CDB];
1024 ide_debug_log(IDE_DBG_FUNC, "enter");
1026 memset(cmd, 0, BLK_MAX_CDB);
1027 cmd[0] = GPCMD_TEST_UNIT_READY;
1030 * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs
1031 * instead of supporting the LOAD_UNLOAD opcode.
1033 cmd[7] = cdi->sanyo_slot % 3;
1035 return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET);
1038 static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
1039 unsigned long *sectors_per_frame,
1040 struct request_sense *sense)
1048 unsigned char cmd[BLK_MAX_CDB];
1049 unsigned len = sizeof(capbuf);
1052 ide_debug_log(IDE_DBG_FUNC, "enter");
1054 memset(cmd, 0, BLK_MAX_CDB);
1055 cmd[0] = GPCMD_READ_CDVD_CAPACITY;
1057 stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0,
1063 * Sanity check the given block size
1065 blocklen = be32_to_cpu(capbuf.blocklen);
1073 printk(KERN_ERR PFX "%s: weird block size %u\n",
1074 drive->name, blocklen);
1075 printk(KERN_ERR PFX "%s: default to 2kb block size\n",
1081 *capacity = 1 + be32_to_cpu(capbuf.lba);
1082 *sectors_per_frame = blocklen >> SECTOR_BITS;
1084 ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu",
1085 *capacity, *sectors_per_frame);
1090 static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag,
1091 int format, char *buf, int buflen,
1092 struct request_sense *sense)
1094 unsigned char cmd[BLK_MAX_CDB];
1096 ide_debug_log(IDE_DBG_FUNC, "enter");
1098 memset(cmd, 0, BLK_MAX_CDB);
1100 cmd[0] = GPCMD_READ_TOC_PMA_ATIP;
1102 cmd[7] = (buflen >> 8);
1103 cmd[8] = (buflen & 0xff);
1104 cmd[9] = (format << 6);
1109 return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET);
1112 /* Try to read the entire TOC for the disk into our internal buffer. */
1113 int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense)
1115 int stat, ntracks, i;
1116 struct cdrom_info *info = drive->driver_data;
1117 struct cdrom_device_info *cdi = &info->devinfo;
1118 struct atapi_toc *toc = info->toc;
1120 struct atapi_toc_header hdr;
1121 struct atapi_toc_entry ent;
1124 unsigned long sectors_per_frame = SECTORS_PER_FRAME;
1126 ide_debug_log(IDE_DBG_FUNC, "enter");
1129 /* try to allocate space */
1130 toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL);
1132 printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n",
1140 * Check to see if the existing data is still valid. If it is,
1143 (void) cdrom_check_status(drive, sense);
1145 if (drive->atapi_flags & IDE_AFLAG_TOC_VALID)
1148 /* try to get the total cdrom capacity and sector size */
1149 stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame,
1152 toc->capacity = 0x1fffff;
1154 set_capacity(info->disk, toc->capacity * sectors_per_frame);
1155 /* save a private copy of the TOC capacity for error handling */
1156 drive->probed_capacity = toc->capacity * sectors_per_frame;
1158 blk_queue_hardsect_size(drive->queue,
1159 sectors_per_frame << SECTOR_BITS);
1161 /* first read just the header, so we know how long the TOC is */
1162 stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr,
1163 sizeof(struct atapi_toc_header), sense);
1167 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
1168 toc->hdr.first_track = bcd2bin(toc->hdr.first_track);
1169 toc->hdr.last_track = bcd2bin(toc->hdr.last_track);
1172 ntracks = toc->hdr.last_track - toc->hdr.first_track + 1;
1175 if (ntracks > MAX_TRACKS)
1176 ntracks = MAX_TRACKS;
1178 /* now read the whole schmeer */
1179 stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0,
1181 sizeof(struct atapi_toc_header) +
1183 sizeof(struct atapi_toc_entry), sense);
1185 if (stat && toc->hdr.first_track > 1) {
1187 * Cds with CDI tracks only don't have any TOC entries, despite
1188 * of this the returned values are
1189 * first_track == last_track = number of CDI tracks + 1,
1190 * so that this case is indistinguishable from the same layout
1191 * plus an additional audio track. If we get an error for the
1192 * regular case, we assume a CDI without additional audio
1193 * tracks. In this case the readable TOC is empty (CDI tracks
1194 * are not included) and only holds the Leadout entry.
1199 stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0,
1201 sizeof(struct atapi_toc_header) +
1203 sizeof(struct atapi_toc_entry),
1208 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
1209 toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT);
1210 toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT);
1212 toc->hdr.first_track = CDROM_LEADOUT;
1213 toc->hdr.last_track = CDROM_LEADOUT;
1220 toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length);
1222 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
1223 toc->hdr.first_track = bcd2bin(toc->hdr.first_track);
1224 toc->hdr.last_track = bcd2bin(toc->hdr.last_track);
1227 for (i = 0; i <= ntracks; i++) {
1228 if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {
1229 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD)
1230 toc->ent[i].track = bcd2bin(toc->ent[i].track);
1231 msf_from_bcd(&toc->ent[i].addr.msf);
1233 toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute,
1234 toc->ent[i].addr.msf.second,
1235 toc->ent[i].addr.msf.frame);
1238 if (toc->hdr.first_track != CDROM_LEADOUT) {
1239 /* read the multisession information */
1240 stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp,
1241 sizeof(ms_tmp), sense);
1245 toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba);
1247 ms_tmp.hdr.last_track = CDROM_LEADOUT;
1248 ms_tmp.hdr.first_track = ms_tmp.hdr.last_track;
1249 toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */
1252 if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {
1253 /* re-read multisession information using MSF format */
1254 stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp,
1255 sizeof(ms_tmp), sense);
1259 msf_from_bcd(&ms_tmp.ent.addr.msf);
1260 toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute,
1261 ms_tmp.ent.addr.msf.second,
1262 ms_tmp.ent.addr.msf.frame);
1265 toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track);
1267 /* now try to get the total cdrom capacity */
1268 stat = cdrom_get_last_written(cdi, &last_written);
1269 if (!stat && (last_written > toc->capacity)) {
1270 toc->capacity = last_written;
1271 set_capacity(info->disk, toc->capacity * sectors_per_frame);
1272 drive->probed_capacity = toc->capacity * sectors_per_frame;
1275 /* Remember that we've read this stuff. */
1276 drive->atapi_flags |= IDE_AFLAG_TOC_VALID;
1281 int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf)
1283 struct cdrom_info *info = drive->driver_data;
1284 struct cdrom_device_info *cdi = &info->devinfo;
1285 struct packet_command cgc;
1286 int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE;
1288 ide_debug_log(IDE_DBG_FUNC, "enter");
1290 if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0)
1291 size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE;
1293 init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN);
1295 /* we seem to get stat=0x01,err=0x00 the first time (??) */
1296 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0);
1299 } while (--attempts);
1303 void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf)
1305 struct cdrom_info *cd = drive->driver_data;
1306 u16 curspeed, maxspeed;
1308 ide_debug_log(IDE_DBG_FUNC, "enter");
1310 if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) {
1311 curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]);
1312 maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]);
1314 curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]);
1315 maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]);
1318 ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u",
1319 curspeed, maxspeed);
1321 cd->current_speed = (curspeed + (176/2)) / 176;
1322 cd->max_speed = (maxspeed + (176/2)) / 176;
1325 #define IDE_CD_CAPABILITIES \
1326 (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \
1327 CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \
1328 CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \
1329 CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \
1330 CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM)
1332 static struct cdrom_device_ops ide_cdrom_dops = {
1333 .open = ide_cdrom_open_real,
1334 .release = ide_cdrom_release_real,
1335 .drive_status = ide_cdrom_drive_status,
1336 .media_changed = ide_cdrom_check_media_change_real,
1337 .tray_move = ide_cdrom_tray_move,
1338 .lock_door = ide_cdrom_lock_door,
1339 .select_speed = ide_cdrom_select_speed,
1340 .get_last_session = ide_cdrom_get_last_session,
1341 .get_mcn = ide_cdrom_get_mcn,
1342 .reset = ide_cdrom_reset,
1343 .audio_ioctl = ide_cdrom_audio_ioctl,
1344 .capability = IDE_CD_CAPABILITIES,
1345 .generic_packet = ide_cdrom_packet,
1348 static int ide_cdrom_register(ide_drive_t *drive, int nslots)
1350 struct cdrom_info *info = drive->driver_data;
1351 struct cdrom_device_info *devinfo = &info->devinfo;
1353 ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots);
1355 devinfo->ops = &ide_cdrom_dops;
1356 devinfo->speed = info->current_speed;
1357 devinfo->capacity = nslots;
1358 devinfo->handle = drive;
1359 strcpy(devinfo->name, drive->name);
1361 if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT)
1362 devinfo->mask |= CDC_SELECT_SPEED;
1364 devinfo->disk = info->disk;
1365 return register_cdrom(devinfo);
1368 static int ide_cdrom_probe_capabilities(ide_drive_t *drive)
1370 struct cdrom_info *cd = drive->driver_data;
1371 struct cdrom_device_info *cdi = &cd->devinfo;
1372 u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE];
1373 mechtype_t mechtype;
1376 ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx",
1377 drive->media, drive->atapi_flags);
1379 cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R |
1380 CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO |
1381 CDC_MO_DRIVE | CDC_RAM);
1383 if (drive->media == ide_optical) {
1384 cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM);
1385 printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n",
1390 if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) {
1391 drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT;
1392 cdi->mask &= ~CDC_PLAY_AUDIO;
1397 * We have to cheat a little here. the packet will eventually be queued
1398 * with ide_cdrom_packet(), which extracts the drive from cdi->handle.
1399 * Since this device hasn't been registered with the Uniform layer yet,
1400 * it can't do this. Same goes for cdi->ops.
1402 cdi->handle = drive;
1403 cdi->ops = &ide_cdrom_dops;
1405 if (ide_cdrom_get_capabilities(drive, buf))
1408 if ((buf[8 + 6] & 0x01) == 0)
1409 drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
1410 if (buf[8 + 6] & 0x08)
1411 drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT;
1412 if (buf[8 + 3] & 0x01)
1413 cdi->mask &= ~CDC_CD_R;
1414 if (buf[8 + 3] & 0x02)
1415 cdi->mask &= ~(CDC_CD_RW | CDC_RAM);
1416 if (buf[8 + 2] & 0x38)
1417 cdi->mask &= ~CDC_DVD;
1418 if (buf[8 + 3] & 0x20)
1419 cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM);
1420 if (buf[8 + 3] & 0x10)
1421 cdi->mask &= ~CDC_DVD_R;
1422 if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK))
1423 cdi->mask &= ~CDC_PLAY_AUDIO;
1425 mechtype = buf[8 + 6] >> 5;
1426 if (mechtype == mechtype_caddy ||
1427 mechtype == mechtype_popup ||
1428 (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE))
1429 cdi->mask |= CDC_CLOSE_TRAY;
1431 if (cdi->sanyo_slot > 0) {
1432 cdi->mask &= ~CDC_SELECT_DISC;
1434 } else if (mechtype == mechtype_individual_changer ||
1435 mechtype == mechtype_cartridge_changer) {
1436 nslots = cdrom_number_of_slots(cdi);
1438 cdi->mask &= ~CDC_SELECT_DISC;
1441 ide_cdrom_update_speed(drive, buf);
1443 printk(KERN_INFO PFX "%s: ATAPI", drive->name);
1445 /* don't print speed if the drive reported 0 */
1447 printk(KERN_CONT " %dX", cd->max_speed);
1449 printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM");
1451 if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0)
1452 printk(KERN_CONT " DVD%s%s",
1453 (cdi->mask & CDC_DVD_R) ? "" : "-R",
1454 (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM");
1456 if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0)
1457 printk(KERN_CONT " CD%s%s",
1458 (cdi->mask & CDC_CD_R) ? "" : "-R",
1459 (cdi->mask & CDC_CD_RW) ? "" : "/RW");
1461 if ((cdi->mask & CDC_SELECT_DISC) == 0)
1462 printk(KERN_CONT " changer w/%d slots", nslots);
1464 printk(KERN_CONT " drive");
1466 printk(KERN_CONT ", %dkB Cache\n",
1467 be16_to_cpup((__be16 *)&buf[8 + 12]));
1472 /* standard prep_rq_fn that builds 10 byte cmds */
1473 static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq)
1475 int hard_sect = queue_hardsect_size(q);
1476 long block = (long)rq->hard_sector / (hard_sect >> 9);
1477 unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9);
1479 memset(rq->cmd, 0, BLK_MAX_CDB);
1481 if (rq_data_dir(rq) == READ)
1482 rq->cmd[0] = GPCMD_READ_10;
1484 rq->cmd[0] = GPCMD_WRITE_10;
1489 rq->cmd[2] = (block >> 24) & 0xff;
1490 rq->cmd[3] = (block >> 16) & 0xff;
1491 rq->cmd[4] = (block >> 8) & 0xff;
1492 rq->cmd[5] = block & 0xff;
1495 * and transfer length
1497 rq->cmd[7] = (blocks >> 8) & 0xff;
1498 rq->cmd[8] = blocks & 0xff;
1504 * Most of the SCSI commands are supported directly by ATAPI devices.
1505 * This transform handles the few exceptions.
1507 static int ide_cdrom_prep_pc(struct request *rq)
1511 /* transform 6-byte read/write commands to the 10-byte version */
1512 if (c[0] == READ_6 || c[0] == WRITE_6) {
1519 c[0] += (READ_10 - READ_6);
1525 * it's silly to pretend we understand 6-byte sense commands, just
1526 * reject with ILLEGAL_REQUEST and the caller should take the
1527 * appropriate action
1529 if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) {
1530 rq->errors = ILLEGAL_REQUEST;
1531 return BLKPREP_KILL;
1537 static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq)
1539 if (blk_fs_request(rq))
1540 return ide_cdrom_prep_fs(q, rq);
1541 else if (blk_pc_request(rq))
1542 return ide_cdrom_prep_pc(rq);
1547 struct cd_list_entry {
1548 const char *id_model;
1549 const char *id_firmware;
1550 unsigned int cd_flags;
1553 #ifdef CONFIG_IDE_PROC_FS
1554 static sector_t ide_cdrom_capacity(ide_drive_t *drive)
1556 unsigned long capacity, sectors_per_frame;
1558 if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL))
1561 return capacity * sectors_per_frame;
1564 static int proc_idecd_read_capacity(char *page, char **start, off_t off,
1565 int count, int *eof, void *data)
1567 ide_drive_t *drive = data;
1570 len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive));
1571 PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
1574 static ide_proc_entry_t idecd_proc[] = {
1575 { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL },
1576 { NULL, 0, NULL, NULL }
1579 static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive)
1584 static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive)
1590 static const struct cd_list_entry ide_cd_quirks_list[] = {
1591 /* SCR-3231 doesn't support the SET_CD_SPEED command. */
1592 { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT },
1593 /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */
1594 { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD |
1595 IDE_AFLAG_PRE_ATAPI12, },
1596 /* Vertos 300, some versions of this drive like to talk BCD. */
1597 { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, },
1598 /* Vertos 600 ESD. */
1599 { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, },
1601 * Sanyo 3 CD changer uses a non-standard command for CD changing
1602 * (by default standard ATAPI support for CD changers is used).
1604 { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD },
1605 { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD },
1606 { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD },
1607 /* Stingray 8X CD-ROM. */
1608 { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 },
1610 * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length
1611 * mode sense page capabilities size, but older drives break.
1613 { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE },
1614 { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE },
1615 /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */
1616 { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS },
1618 * Some drives used by Apple don't advertise audio play
1619 * but they do support reading TOC & audio datas.
1621 { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1622 { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1623 { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1624 { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1625 { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1626 { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1627 { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE },
1628 { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE },
1632 static unsigned int ide_cd_flags(u16 *id)
1634 const struct cd_list_entry *cle = ide_cd_quirks_list;
1636 while (cle->id_model) {
1637 if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 &&
1638 (cle->id_firmware == NULL ||
1639 strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware)))
1640 return cle->cd_flags;
1647 static int ide_cdrom_setup(ide_drive_t *drive)
1649 struct cdrom_info *cd = drive->driver_data;
1650 struct cdrom_device_info *cdi = &cd->devinfo;
1651 u16 *id = drive->id;
1652 char *fw_rev = (char *)&id[ATA_ID_FW_REV];
1655 ide_debug_log(IDE_DBG_PROBE, "enter");
1657 blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn);
1658 blk_queue_dma_alignment(drive->queue, 31);
1659 blk_queue_update_dma_pad(drive->queue, 15);
1660 drive->queue->unplug_delay = (1 * HZ) / 1000;
1661 if (!drive->queue->unplug_delay)
1662 drive->queue->unplug_delay = 1;
1664 drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
1665 drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id);
1667 if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) &&
1668 fw_rev[4] == '1' && fw_rev[6] <= '2')
1669 drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD |
1670 IDE_AFLAG_TOCADDR_AS_BCD);
1671 else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) &&
1672 fw_rev[4] == '1' && fw_rev[6] <= '2')
1673 drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD;
1674 else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD)
1675 /* 3 => use CD in slot 0 */
1676 cdi->sanyo_slot = 3;
1678 nslots = ide_cdrom_probe_capabilities(drive);
1680 /* set correct block size */
1681 blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE);
1683 if (ide_cdrom_register(drive, nslots)) {
1684 printk(KERN_ERR PFX "%s: %s failed to register device with the"
1685 " cdrom driver.\n", drive->name, __func__);
1686 cd->devinfo.handle = NULL;
1690 ide_proc_register_driver(drive, cd->driver);
1694 static void ide_cd_remove(ide_drive_t *drive)
1696 struct cdrom_info *info = drive->driver_data;
1698 ide_debug_log(IDE_DBG_FUNC, "enter");
1700 ide_proc_unregister_driver(drive, info->driver);
1701 device_del(&info->dev);
1702 del_gendisk(info->disk);
1704 mutex_lock(&idecd_ref_mutex);
1705 put_device(&info->dev);
1706 mutex_unlock(&idecd_ref_mutex);
1709 static void ide_cd_release(struct device *dev)
1711 struct cdrom_info *info = to_ide_drv(dev, cdrom_info);
1712 struct cdrom_device_info *devinfo = &info->devinfo;
1713 ide_drive_t *drive = info->drive;
1714 struct gendisk *g = info->disk;
1716 ide_debug_log(IDE_DBG_FUNC, "enter");
1719 if (devinfo->handle == drive)
1720 unregister_cdrom(devinfo);
1721 drive->driver_data = NULL;
1722 blk_queue_prep_rq(drive->queue, NULL);
1723 g->private_data = NULL;
1728 static int ide_cd_probe(ide_drive_t *);
1730 static struct ide_driver ide_cdrom_driver = {
1732 .owner = THIS_MODULE,
1733 .name = "ide-cdrom",
1734 .bus = &ide_bus_type,
1736 .probe = ide_cd_probe,
1737 .remove = ide_cd_remove,
1738 .version = IDECD_VERSION,
1739 .do_request = ide_cd_do_request,
1740 #ifdef CONFIG_IDE_PROC_FS
1741 .proc_entries = ide_cd_proc_entries,
1742 .proc_devsets = ide_cd_proc_devsets,
1746 static int idecd_open(struct block_device *bdev, fmode_t mode)
1748 struct cdrom_info *info = ide_cd_get(bdev->bd_disk);
1754 rc = cdrom_open(&info->devinfo, bdev, mode);
1762 static int idecd_release(struct gendisk *disk, fmode_t mode)
1764 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
1766 cdrom_release(&info->devinfo, mode);
1773 static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg)
1775 struct packet_command cgc;
1780 if (copy_from_user(&spindown, (void __user *)arg, sizeof(char)))
1783 init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
1785 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0);
1789 buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f);
1790 return cdrom_mode_select(cdi, &cgc);
1793 static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg)
1795 struct packet_command cgc;
1800 init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
1802 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0);
1806 spindown = buffer[11] & 0x0f;
1807 if (copy_to_user((void __user *)arg, &spindown, sizeof(char)))
1812 static int idecd_ioctl(struct block_device *bdev, fmode_t mode,
1813 unsigned int cmd, unsigned long arg)
1815 struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info);
1819 case CDROMSETSPINDOWN:
1820 return idecd_set_spindown(&info->devinfo, arg);
1821 case CDROMGETSPINDOWN:
1822 return idecd_get_spindown(&info->devinfo, arg);
1827 err = generic_ide_ioctl(info->drive, bdev, cmd, arg);
1829 err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg);
1834 static int idecd_media_changed(struct gendisk *disk)
1836 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
1837 return cdrom_media_changed(&info->devinfo);
1840 static int idecd_revalidate_disk(struct gendisk *disk)
1842 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
1843 struct request_sense sense;
1845 ide_cd_read_toc(info->drive, &sense);
1850 static struct block_device_operations idecd_ops = {
1851 .owner = THIS_MODULE,
1853 .release = idecd_release,
1854 .locked_ioctl = idecd_ioctl,
1855 .media_changed = idecd_media_changed,
1856 .revalidate_disk = idecd_revalidate_disk
1859 /* module options */
1860 static unsigned long debug_mask;
1861 module_param(debug_mask, ulong, 0644);
1863 MODULE_DESCRIPTION("ATAPI CD-ROM Driver");
1865 static int ide_cd_probe(ide_drive_t *drive)
1867 struct cdrom_info *info;
1869 struct request_sense sense;
1871 ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x",
1872 drive->driver_req, drive->media);
1874 if (!strstr("ide-cdrom", drive->driver_req))
1877 if (drive->media != ide_cdrom && drive->media != ide_optical)
1880 drive->debug_mask = debug_mask;
1881 drive->irq_handler = cdrom_newpc_intr;
1883 info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL);
1885 printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n",
1890 g = alloc_disk(1 << PARTN_BITS);
1894 ide_init_disk(g, drive);
1896 info->dev.parent = &drive->gendev;
1897 info->dev.release = ide_cd_release;
1898 dev_set_name(&info->dev, dev_name(&drive->gendev));
1900 if (device_register(&info->dev))
1903 info->drive = drive;
1904 info->driver = &ide_cdrom_driver;
1907 g->private_data = &info->driver;
1909 drive->driver_data = info;
1912 g->driverfs_dev = &drive->gendev;
1913 g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;
1914 if (ide_cdrom_setup(drive)) {
1915 put_device(&info->dev);
1919 ide_cd_read_toc(drive, &sense);
1920 g->fops = &idecd_ops;
1921 g->flags |= GENHD_FL_REMOVABLE;
1933 static void __exit ide_cdrom_exit(void)
1935 driver_unregister(&ide_cdrom_driver.gen_driver);
1938 static int __init ide_cdrom_init(void)
1940 printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n");
1941 return driver_register(&ide_cdrom_driver.gen_driver);
1944 MODULE_ALIAS("ide:*m-cdrom*");
1945 MODULE_ALIAS("ide-cd");
1946 module_init(ide_cdrom_init);
1947 module_exit(ide_cdrom_exit);
1948 MODULE_LICENSE("GPL");