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/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 memset(sense, 0, 18);
222 /* stuff the sense request in front of our current request */
223 blk_rq_init(NULL, rq);
224 rq->cmd_type = REQ_TYPE_ATA_PC;
225 rq->rq_disk = info->disk;
228 rq->cmd[0] = GPCMD_REQUEST_SENSE;
232 rq->cmd_type = REQ_TYPE_SENSE;
233 rq->cmd_flags |= REQ_PREEMPT;
235 /* NOTE! Save the failed command in "rq->buffer" */
236 rq->buffer = (void *) failed_command;
239 ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x",
240 failed_command->cmd[0]);
242 drive->hwif->rq = NULL;
244 elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0);
247 static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq)
250 * For REQ_TYPE_SENSE, "rq->buffer" points to the original
253 struct request *failed = (struct request *)rq->buffer;
254 struct cdrom_info *info = drive->driver_data;
255 void *sense = &info->sense_data;
259 sense = failed->sense;
260 failed->sense_len = rq->sense_len;
262 cdrom_analyze_sense_data(drive, failed, sense);
264 if (ide_end_rq(drive, failed, -EIO, blk_rq_bytes(failed)))
267 cdrom_analyze_sense_data(drive, NULL, sense);
272 * Allow the drive 5 seconds to recover; some devices will return NOT_READY
273 * while flushing data from cache.
275 * returns: 0 failed (write timeout expired)
278 static int ide_cd_breathe(ide_drive_t *drive, struct request *rq)
281 struct cdrom_info *info = drive->driver_data;
284 info->write_timeout = jiffies + ATAPI_WAIT_WRITE_BUSY;
288 if (time_after(jiffies, info->write_timeout))
291 struct request_queue *q = drive->queue;
295 * take a breather relying on the unplug timer to kick us again
298 spin_lock_irqsave(q->queue_lock, flags);
300 spin_unlock_irqrestore(q->queue_lock, flags);
308 * 0: if the request should be continued.
309 * 1: if the request will be going through error recovery.
310 * 2: if the request should be ended.
312 static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
314 ide_hwif_t *hwif = drive->hwif;
315 struct request *rq = hwif->rq;
316 int err, sense_key, do_end_request = 0;
317 u8 quiet = rq->cmd_flags & REQ_QUIET;
319 /* get the IDE error register */
320 err = ide_read_error(drive);
321 sense_key = err >> 4;
323 ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, rq->cmd_type: 0x%x, err: 0x%x, "
325 rq->cmd[0], rq->cmd_type, err, stat);
327 if (blk_sense_request(rq)) {
329 * We got an error trying to get sense info from the drive
330 * (probably while trying to recover from a former error).
333 rq->cmd_flags |= REQ_FAILED;
337 /* if we have an error, pass CHECK_CONDITION as the SCSI status byte */
338 if (blk_pc_request(rq) && !rq->errors)
339 rq->errors = SAM_STAT_CHECK_CONDITION;
341 if (blk_noretry_request(rq))
346 if (blk_fs_request(rq) && rq_data_dir(rq) == WRITE) {
347 if (ide_cd_breathe(drive, rq))
350 cdrom_saw_media_change(drive);
352 if (blk_fs_request(rq) && !quiet)
353 printk(KERN_ERR PFX "%s: tray open\n",
359 cdrom_saw_media_change(drive);
361 if (blk_fs_request(rq) == 0)
365 * Arrange to retry the request but be sure to give up if we've
366 * retried too many times.
368 if (++rq->errors > ERROR_MAX)
371 case ILLEGAL_REQUEST:
373 * Don't print error message for this condition -- SFF8090i
374 * indicates that 5/24/00 is the correct response to a request
375 * to close the tray if the drive doesn't have that capability.
377 * cdrom_log_sense() knows this!
379 if (rq->cmd[0] == GPCMD_START_STOP_UNIT)
384 * No point in retrying after an illegal request or data
388 ide_dump_status(drive, "command error", stat);
393 * No point in re-trying a zillion times on a bad sector.
394 * If we got here the error is not correctable.
397 ide_dump_status(drive, "media error "
398 "(bad sector)", stat);
402 /* disk appears blank? */
404 ide_dump_status(drive, "media error (blank)",
409 if (blk_fs_request(rq) == 0)
411 if (err & ~ATA_ABORTED) {
412 /* go to the default handler for other errors */
413 ide_error(drive, "cdrom_decode_status", stat);
415 } else if (++rq->errors > ERROR_MAX)
416 /* we've racked up too many retries, abort */
420 if (blk_fs_request(rq) == 0) {
421 rq->cmd_flags |= REQ_FAILED;
426 * End a request through request sense analysis when we have sense data.
427 * We need this in order to perform end of media processing.
432 /* if we got a CHECK_CONDITION status, queue a request sense command */
434 cdrom_queue_request_sense(drive, NULL, NULL);
438 if (stat & ATA_ERR) {
439 struct request_queue *q = drive->queue;
442 spin_lock_irqsave(q->queue_lock, flags);
443 blkdev_dequeue_request(rq);
444 spin_unlock_irqrestore(q->queue_lock, flags);
448 cdrom_queue_request_sense(drive, rq->sense, rq);
455 * Check the contents of the interrupt reason register from the cdrom
456 * and attempt to recover if there are problems. Returns 0 if everything's
457 * ok; nonzero if the request has been terminated.
459 static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq,
460 int len, int ireason, int rw)
462 ide_hwif_t *hwif = drive->hwif;
464 ide_debug_log(IDE_DBG_FUNC, "ireason: 0x%x, rw: 0x%x", ireason, rw);
467 * ireason == 0: the drive wants to receive data from us
468 * ireason == 2: the drive is expecting to transfer data to us
470 if (ireason == (!rw << 1))
472 else if (ireason == (rw << 1)) {
475 printk(KERN_ERR PFX "%s: %s: wrong transfer direction!\n",
476 drive->name, __func__);
478 ide_pad_transfer(drive, rw, len);
479 } else if (rw == 0 && ireason == 1) {
481 * Some drives (ASUS) seem to tell us that status info is
482 * available. Just get it and ignore.
484 (void)hwif->tp_ops->read_status(hwif);
487 /* drive wants a command packet, or invalid ireason... */
488 printk(KERN_ERR PFX "%s: %s: bad interrupt reason 0x%02x\n",
489 drive->name, __func__, ireason);
492 if (rq->cmd_type == REQ_TYPE_ATA_PC)
493 rq->cmd_flags |= REQ_FAILED;
498 static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct ide_cmd *cmd)
500 struct request *rq = cmd->rq;
502 ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]);
505 * Some of the trailing request sense fields are optional,
506 * and some drives don't send them. Sigh.
508 if (rq->cmd[0] == GPCMD_REQUEST_SENSE &&
509 cmd->nleft > 0 && cmd->nleft <= 5)
513 int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd,
514 int write, void *buffer, unsigned *bufflen,
515 struct request_sense *sense, int timeout,
516 unsigned int cmd_flags)
518 struct cdrom_info *info = drive->driver_data;
519 struct request_sense local_sense;
521 unsigned int flags = 0;
524 sense = &local_sense;
526 ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, "
528 cmd[0], write, timeout, cmd_flags);
530 /* start of retry loop */
535 rq = blk_get_request(drive->queue, write, __GFP_WAIT);
537 memcpy(rq->cmd, cmd, BLK_MAX_CDB);
538 rq->cmd_type = REQ_TYPE_ATA_PC;
540 rq->cmd_flags |= cmd_flags;
541 rq->timeout = timeout;
544 rq->data_len = *bufflen;
547 error = blk_execute_rq(drive->queue, info->disk, rq, 0);
550 *bufflen = rq->data_len;
552 flags = rq->cmd_flags;
556 * FIXME: we should probably abort/retry or something in case of
559 if (flags & REQ_FAILED) {
561 * The request failed. Retry if it was due to a unit
562 * attention status (usually means media was changed).
564 struct request_sense *reqbuf = sense;
566 if (reqbuf->sense_key == UNIT_ATTENTION)
567 cdrom_saw_media_change(drive);
568 else if (reqbuf->sense_key == NOT_READY &&
569 reqbuf->asc == 4 && reqbuf->ascq != 4) {
571 * The drive is in the process of loading
572 * a disk. Retry, but wait a little to give
573 * the drive time to complete the load.
577 /* otherwise, don't retry */
583 /* end of retry loop */
584 } while ((flags & REQ_FAILED) && retries >= 0);
586 /* return an error if the command failed */
587 return (flags & REQ_FAILED) ? -EIO : 0;
590 static void ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd)
592 unsigned int nr_bytes = cmd->nbytes - cmd->nleft;
594 if (cmd->tf_flags & IDE_TFLAG_WRITE)
595 nr_bytes -= cmd->last_xfer_len;
598 ide_complete_rq(drive, 0, nr_bytes);
601 static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
603 ide_hwif_t *hwif = drive->hwif;
604 struct ide_cmd *cmd = &hwif->cmd;
605 struct request *rq = hwif->rq;
606 ide_expiry_t *expiry = NULL;
607 int dma_error = 0, dma, thislen, uptodate = 0;
608 int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc = 0, nsectors;
609 int sense = blk_sense_request(rq);
610 unsigned int timeout;
614 ide_debug_log(IDE_DBG_PC, "cmd: 0x%x, write: 0x%x", rq->cmd[0], write);
616 /* check for errors */
620 drive->waiting_for_dma = 0;
621 dma_error = hwif->dma_ops->dma_end(drive);
622 ide_dma_unmap_sg(drive, cmd);
624 printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name,
625 write ? "write" : "read");
631 stat = hwif->tp_ops->read_status(hwif);
633 if (!OK_STAT(stat, 0, BAD_R_STAT)) {
634 rc = cdrom_decode_status(drive, stat);
642 /* using dma, transfer is complete now */
645 return ide_error(drive, "dma error", stat);
650 ide_read_bcount_and_ireason(drive, &len, &ireason);
652 thislen = blk_fs_request(rq) ? len : cmd->nleft;
656 ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d",
659 /* If DRQ is clear, the command has completed. */
660 if ((stat & ATA_DRQ) == 0) {
661 if (blk_fs_request(rq)) {
663 * If we're not done reading/writing, complain.
664 * Otherwise, complete the command normally.
667 if (cmd->nleft > 0) {
668 printk(KERN_ERR PFX "%s: %s: data underrun "
669 "(%u bytes)\n", drive->name, __func__,
672 rq->cmd_flags |= REQ_FAILED;
675 } else if (!blk_pc_request(rq)) {
676 ide_cd_request_sense_fixup(drive, cmd);
677 /* complain if we still have data left to transfer */
678 uptodate = cmd->nleft ? 0 : 1;
680 rq->cmd_flags |= REQ_FAILED;
685 /* check which way to transfer data */
686 rc = ide_cd_check_ireason(drive, rq, len, ireason, write);
690 cmd->last_xfer_len = 0;
692 ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, "
694 rq->cmd_type, ireason);
697 while (thislen > 0) {
698 int blen = min_t(int, thislen, cmd->nleft);
703 ide_pio_bytes(drive, cmd, write, blen);
704 cmd->last_xfer_len += blen;
709 if (sense && write == 0)
710 rq->sense_len += blen;
713 /* pad, if necessary */
715 if (blk_fs_request(rq) == 0 || write == 0)
716 ide_pad_transfer(drive, write, len);
718 printk(KERN_ERR PFX "%s: confused, missing data\n",
720 blk_dump_rq_flags(rq, "cdrom_newpc_intr");
724 if (blk_pc_request(rq)) {
725 timeout = rq->timeout;
727 timeout = ATAPI_WAIT_PC;
728 if (!blk_fs_request(rq))
729 expiry = ide_cd_expiry;
732 hwif->expiry = expiry;
733 ide_set_handler(drive, cdrom_newpc_intr, timeout);
737 if (blk_pc_request(rq) && rc == 0) {
738 unsigned int dlen = rq->data_len;
742 if (blk_end_request(rq, 0, dlen))
747 if (sense && uptodate)
748 ide_cd_complete_failed_rq(drive, rq);
750 if (blk_fs_request(rq)) {
754 if (uptodate <= 0 && rq->errors == 0)
759 ide_cd_error_cmd(drive, cmd);
761 /* make sure it's fully ended */
762 if (blk_pc_request(rq))
763 nsectors = (rq->data_len + 511) >> 9;
765 nsectors = rq->hard_nr_sectors;
770 if (blk_fs_request(rq) == 0) {
771 rq->data_len -= (cmd->nbytes - cmd->nleft);
772 if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE))
773 rq->data_len += cmd->last_xfer_len;
776 ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9);
778 if (sense && rc == 2)
779 ide_error(drive, "request sense failure", stat);
784 static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
786 struct cdrom_info *cd = drive->driver_data;
787 struct request_queue *q = drive->queue;
788 int write = rq_data_dir(rq) == WRITE;
789 unsigned short sectors_per_frame =
790 queue_hardsect_size(q) >> SECTOR_BITS;
792 ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, "
793 "secs_per_frame: %u",
794 rq->cmd[0], rq->cmd_flags, sectors_per_frame);
797 /* disk has become write protected */
798 if (get_disk_ro(cd->disk))
802 * We may be retrying this request after an error. Fix up any
803 * weirdness which might be present in the request packet.
805 q->prep_rq_fn(q, rq);
808 /* fs requests *must* be hardware frame aligned */
809 if ((rq->nr_sectors & (sectors_per_frame - 1)) ||
810 (rq->sector & (sectors_per_frame - 1)))
813 /* use DMA, if possible */
814 drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
817 cd->devinfo.media_written = 1;
819 rq->timeout = ATAPI_WAIT_PC;
824 static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
827 ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x",
828 rq->cmd[0], rq->cmd_type);
830 if (blk_pc_request(rq))
831 rq->cmd_flags |= REQ_QUIET;
833 rq->cmd_flags &= ~REQ_FAILED;
838 if (rq->bio || ((rq->cmd_type == REQ_TYPE_ATA_PC) && rq->data_len)) {
839 struct request_queue *q = drive->queue;
840 unsigned int alignment;
844 buf = bio_data(rq->bio);
848 drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
851 * check if dma is safe
853 * NOTE! The "len" and "addr" checks should possibly have
856 alignment = queue_dma_alignment(q) | q->dma_pad_mask;
857 if ((unsigned long)buf & alignment
858 || rq->data_len & q->dma_pad_mask
859 || object_is_on_stack(buf))
864 static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
868 int uptodate = 0, nsectors;
870 ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu",
871 rq->cmd[0], (unsigned long long)block);
873 if (drive->debug_mask & IDE_DBG_RQ)
874 blk_dump_rq_flags(rq, "ide_cd_do_request");
876 if (blk_fs_request(rq)) {
877 if (cdrom_start_rw(drive, rq) == ide_stopped)
879 } else if (blk_sense_request(rq) || blk_pc_request(rq) ||
880 rq->cmd_type == REQ_TYPE_ATA_PC) {
882 rq->timeout = ATAPI_WAIT_PC;
884 cdrom_do_block_pc(drive, rq);
885 } else if (blk_special_request(rq)) {
886 /* right now this can only be a reset... */
890 blk_dump_rq_flags(rq, DRV_NAME " bad flags");
896 memset(&cmd, 0, sizeof(cmd));
899 cmd.tf_flags |= IDE_TFLAG_WRITE;
903 if (blk_fs_request(rq) || rq->data_len) {
904 ide_init_sg_cmd(&cmd, blk_fs_request(rq) ? (rq->nr_sectors << 9)
906 ide_map_sg(drive, &cmd);
909 return ide_issue_pc(drive, &cmd);
911 nsectors = rq->hard_nr_sectors;
916 ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9);
924 * Routines which queue packet commands take as a final argument a pointer to a
925 * request_sense struct. If execution of the command results in an error with a
926 * CHECK CONDITION status, this structure will be filled with the results of the
927 * subsequent request sense command. The pointer can also be NULL, in which case
928 * no sense information is returned.
930 static void msf_from_bcd(struct atapi_msf *msf)
932 msf->minute = bcd2bin(msf->minute);
933 msf->second = bcd2bin(msf->second);
934 msf->frame = bcd2bin(msf->frame);
937 int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
939 struct cdrom_info *info = drive->driver_data;
940 struct cdrom_device_info *cdi = &info->devinfo;
941 unsigned char cmd[BLK_MAX_CDB];
943 ide_debug_log(IDE_DBG_FUNC, "enter");
945 memset(cmd, 0, BLK_MAX_CDB);
946 cmd[0] = GPCMD_TEST_UNIT_READY;
949 * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs
950 * instead of supporting the LOAD_UNLOAD opcode.
952 cmd[7] = cdi->sanyo_slot % 3;
954 return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET);
957 static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
958 unsigned long *sectors_per_frame,
959 struct request_sense *sense)
967 unsigned char cmd[BLK_MAX_CDB];
968 unsigned len = sizeof(capbuf);
971 ide_debug_log(IDE_DBG_FUNC, "enter");
973 memset(cmd, 0, BLK_MAX_CDB);
974 cmd[0] = GPCMD_READ_CDVD_CAPACITY;
976 stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0,
982 * Sanity check the given block size
984 blocklen = be32_to_cpu(capbuf.blocklen);
992 printk(KERN_ERR PFX "%s: weird block size %u\n",
993 drive->name, blocklen);
994 printk(KERN_ERR PFX "%s: default to 2kb block size\n",
1000 *capacity = 1 + be32_to_cpu(capbuf.lba);
1001 *sectors_per_frame = blocklen >> SECTOR_BITS;
1003 ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu",
1004 *capacity, *sectors_per_frame);
1009 static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag,
1010 int format, char *buf, int buflen,
1011 struct request_sense *sense)
1013 unsigned char cmd[BLK_MAX_CDB];
1015 ide_debug_log(IDE_DBG_FUNC, "enter");
1017 memset(cmd, 0, BLK_MAX_CDB);
1019 cmd[0] = GPCMD_READ_TOC_PMA_ATIP;
1021 cmd[7] = (buflen >> 8);
1022 cmd[8] = (buflen & 0xff);
1023 cmd[9] = (format << 6);
1028 return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET);
1031 /* Try to read the entire TOC for the disk into our internal buffer. */
1032 int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense)
1034 int stat, ntracks, i;
1035 struct cdrom_info *info = drive->driver_data;
1036 struct cdrom_device_info *cdi = &info->devinfo;
1037 struct atapi_toc *toc = info->toc;
1039 struct atapi_toc_header hdr;
1040 struct atapi_toc_entry ent;
1043 unsigned long sectors_per_frame = SECTORS_PER_FRAME;
1045 ide_debug_log(IDE_DBG_FUNC, "enter");
1048 /* try to allocate space */
1049 toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL);
1051 printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n",
1059 * Check to see if the existing data is still valid. If it is,
1062 (void) cdrom_check_status(drive, sense);
1064 if (drive->atapi_flags & IDE_AFLAG_TOC_VALID)
1067 /* try to get the total cdrom capacity and sector size */
1068 stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame,
1071 toc->capacity = 0x1fffff;
1073 set_capacity(info->disk, toc->capacity * sectors_per_frame);
1074 /* save a private copy of the TOC capacity for error handling */
1075 drive->probed_capacity = toc->capacity * sectors_per_frame;
1077 blk_queue_hardsect_size(drive->queue,
1078 sectors_per_frame << SECTOR_BITS);
1080 /* first read just the header, so we know how long the TOC is */
1081 stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr,
1082 sizeof(struct atapi_toc_header), sense);
1086 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
1087 toc->hdr.first_track = bcd2bin(toc->hdr.first_track);
1088 toc->hdr.last_track = bcd2bin(toc->hdr.last_track);
1091 ntracks = toc->hdr.last_track - toc->hdr.first_track + 1;
1094 if (ntracks > MAX_TRACKS)
1095 ntracks = MAX_TRACKS;
1097 /* now read the whole schmeer */
1098 stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0,
1100 sizeof(struct atapi_toc_header) +
1102 sizeof(struct atapi_toc_entry), sense);
1104 if (stat && toc->hdr.first_track > 1) {
1106 * Cds with CDI tracks only don't have any TOC entries, despite
1107 * of this the returned values are
1108 * first_track == last_track = number of CDI tracks + 1,
1109 * so that this case is indistinguishable from the same layout
1110 * plus an additional audio track. If we get an error for the
1111 * regular case, we assume a CDI without additional audio
1112 * tracks. In this case the readable TOC is empty (CDI tracks
1113 * are not included) and only holds the Leadout entry.
1118 stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0,
1120 sizeof(struct atapi_toc_header) +
1122 sizeof(struct atapi_toc_entry),
1127 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
1128 toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT);
1129 toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT);
1131 toc->hdr.first_track = CDROM_LEADOUT;
1132 toc->hdr.last_track = CDROM_LEADOUT;
1139 toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length);
1141 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
1142 toc->hdr.first_track = bcd2bin(toc->hdr.first_track);
1143 toc->hdr.last_track = bcd2bin(toc->hdr.last_track);
1146 for (i = 0; i <= ntracks; i++) {
1147 if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {
1148 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD)
1149 toc->ent[i].track = bcd2bin(toc->ent[i].track);
1150 msf_from_bcd(&toc->ent[i].addr.msf);
1152 toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute,
1153 toc->ent[i].addr.msf.second,
1154 toc->ent[i].addr.msf.frame);
1157 if (toc->hdr.first_track != CDROM_LEADOUT) {
1158 /* read the multisession information */
1159 stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp,
1160 sizeof(ms_tmp), sense);
1164 toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba);
1166 ms_tmp.hdr.last_track = CDROM_LEADOUT;
1167 ms_tmp.hdr.first_track = ms_tmp.hdr.last_track;
1168 toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */
1171 if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {
1172 /* re-read multisession information using MSF format */
1173 stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp,
1174 sizeof(ms_tmp), sense);
1178 msf_from_bcd(&ms_tmp.ent.addr.msf);
1179 toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute,
1180 ms_tmp.ent.addr.msf.second,
1181 ms_tmp.ent.addr.msf.frame);
1184 toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track);
1186 /* now try to get the total cdrom capacity */
1187 stat = cdrom_get_last_written(cdi, &last_written);
1188 if (!stat && (last_written > toc->capacity)) {
1189 toc->capacity = last_written;
1190 set_capacity(info->disk, toc->capacity * sectors_per_frame);
1191 drive->probed_capacity = toc->capacity * sectors_per_frame;
1194 /* Remember that we've read this stuff. */
1195 drive->atapi_flags |= IDE_AFLAG_TOC_VALID;
1200 int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf)
1202 struct cdrom_info *info = drive->driver_data;
1203 struct cdrom_device_info *cdi = &info->devinfo;
1204 struct packet_command cgc;
1205 int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE;
1207 ide_debug_log(IDE_DBG_FUNC, "enter");
1209 if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0)
1210 size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE;
1212 init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN);
1214 /* we seem to get stat=0x01,err=0x00 the first time (??) */
1215 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0);
1218 } while (--attempts);
1222 void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf)
1224 struct cdrom_info *cd = drive->driver_data;
1225 u16 curspeed, maxspeed;
1227 ide_debug_log(IDE_DBG_FUNC, "enter");
1229 if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) {
1230 curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]);
1231 maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]);
1233 curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]);
1234 maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]);
1237 ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u",
1238 curspeed, maxspeed);
1240 cd->current_speed = (curspeed + (176/2)) / 176;
1241 cd->max_speed = (maxspeed + (176/2)) / 176;
1244 #define IDE_CD_CAPABILITIES \
1245 (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \
1246 CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \
1247 CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \
1248 CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \
1249 CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM)
1251 static struct cdrom_device_ops ide_cdrom_dops = {
1252 .open = ide_cdrom_open_real,
1253 .release = ide_cdrom_release_real,
1254 .drive_status = ide_cdrom_drive_status,
1255 .media_changed = ide_cdrom_check_media_change_real,
1256 .tray_move = ide_cdrom_tray_move,
1257 .lock_door = ide_cdrom_lock_door,
1258 .select_speed = ide_cdrom_select_speed,
1259 .get_last_session = ide_cdrom_get_last_session,
1260 .get_mcn = ide_cdrom_get_mcn,
1261 .reset = ide_cdrom_reset,
1262 .audio_ioctl = ide_cdrom_audio_ioctl,
1263 .capability = IDE_CD_CAPABILITIES,
1264 .generic_packet = ide_cdrom_packet,
1267 static int ide_cdrom_register(ide_drive_t *drive, int nslots)
1269 struct cdrom_info *info = drive->driver_data;
1270 struct cdrom_device_info *devinfo = &info->devinfo;
1272 ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots);
1274 devinfo->ops = &ide_cdrom_dops;
1275 devinfo->speed = info->current_speed;
1276 devinfo->capacity = nslots;
1277 devinfo->handle = drive;
1278 strcpy(devinfo->name, drive->name);
1280 if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT)
1281 devinfo->mask |= CDC_SELECT_SPEED;
1283 devinfo->disk = info->disk;
1284 return register_cdrom(devinfo);
1287 static int ide_cdrom_probe_capabilities(ide_drive_t *drive)
1289 struct cdrom_info *cd = drive->driver_data;
1290 struct cdrom_device_info *cdi = &cd->devinfo;
1291 u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE];
1292 mechtype_t mechtype;
1295 ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx",
1296 drive->media, drive->atapi_flags);
1298 cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R |
1299 CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO |
1300 CDC_MO_DRIVE | CDC_RAM);
1302 if (drive->media == ide_optical) {
1303 cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM);
1304 printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n",
1309 if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) {
1310 drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT;
1311 cdi->mask &= ~CDC_PLAY_AUDIO;
1316 * We have to cheat a little here. the packet will eventually be queued
1317 * with ide_cdrom_packet(), which extracts the drive from cdi->handle.
1318 * Since this device hasn't been registered with the Uniform layer yet,
1319 * it can't do this. Same goes for cdi->ops.
1321 cdi->handle = drive;
1322 cdi->ops = &ide_cdrom_dops;
1324 if (ide_cdrom_get_capabilities(drive, buf))
1327 if ((buf[8 + 6] & 0x01) == 0)
1328 drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
1329 if (buf[8 + 6] & 0x08)
1330 drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT;
1331 if (buf[8 + 3] & 0x01)
1332 cdi->mask &= ~CDC_CD_R;
1333 if (buf[8 + 3] & 0x02)
1334 cdi->mask &= ~(CDC_CD_RW | CDC_RAM);
1335 if (buf[8 + 2] & 0x38)
1336 cdi->mask &= ~CDC_DVD;
1337 if (buf[8 + 3] & 0x20)
1338 cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM);
1339 if (buf[8 + 3] & 0x10)
1340 cdi->mask &= ~CDC_DVD_R;
1341 if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK))
1342 cdi->mask &= ~CDC_PLAY_AUDIO;
1344 mechtype = buf[8 + 6] >> 5;
1345 if (mechtype == mechtype_caddy ||
1346 mechtype == mechtype_popup ||
1347 (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE))
1348 cdi->mask |= CDC_CLOSE_TRAY;
1350 if (cdi->sanyo_slot > 0) {
1351 cdi->mask &= ~CDC_SELECT_DISC;
1353 } else if (mechtype == mechtype_individual_changer ||
1354 mechtype == mechtype_cartridge_changer) {
1355 nslots = cdrom_number_of_slots(cdi);
1357 cdi->mask &= ~CDC_SELECT_DISC;
1360 ide_cdrom_update_speed(drive, buf);
1362 printk(KERN_INFO PFX "%s: ATAPI", drive->name);
1364 /* don't print speed if the drive reported 0 */
1366 printk(KERN_CONT " %dX", cd->max_speed);
1368 printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM");
1370 if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0)
1371 printk(KERN_CONT " DVD%s%s",
1372 (cdi->mask & CDC_DVD_R) ? "" : "-R",
1373 (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM");
1375 if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0)
1376 printk(KERN_CONT " CD%s%s",
1377 (cdi->mask & CDC_CD_R) ? "" : "-R",
1378 (cdi->mask & CDC_CD_RW) ? "" : "/RW");
1380 if ((cdi->mask & CDC_SELECT_DISC) == 0)
1381 printk(KERN_CONT " changer w/%d slots", nslots);
1383 printk(KERN_CONT " drive");
1385 printk(KERN_CONT ", %dkB Cache\n",
1386 be16_to_cpup((__be16 *)&buf[8 + 12]));
1391 /* standard prep_rq_fn that builds 10 byte cmds */
1392 static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq)
1394 int hard_sect = queue_hardsect_size(q);
1395 long block = (long)rq->hard_sector / (hard_sect >> 9);
1396 unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9);
1398 memset(rq->cmd, 0, BLK_MAX_CDB);
1400 if (rq_data_dir(rq) == READ)
1401 rq->cmd[0] = GPCMD_READ_10;
1403 rq->cmd[0] = GPCMD_WRITE_10;
1408 rq->cmd[2] = (block >> 24) & 0xff;
1409 rq->cmd[3] = (block >> 16) & 0xff;
1410 rq->cmd[4] = (block >> 8) & 0xff;
1411 rq->cmd[5] = block & 0xff;
1414 * and transfer length
1416 rq->cmd[7] = (blocks >> 8) & 0xff;
1417 rq->cmd[8] = blocks & 0xff;
1423 * Most of the SCSI commands are supported directly by ATAPI devices.
1424 * This transform handles the few exceptions.
1426 static int ide_cdrom_prep_pc(struct request *rq)
1430 /* transform 6-byte read/write commands to the 10-byte version */
1431 if (c[0] == READ_6 || c[0] == WRITE_6) {
1438 c[0] += (READ_10 - READ_6);
1444 * it's silly to pretend we understand 6-byte sense commands, just
1445 * reject with ILLEGAL_REQUEST and the caller should take the
1446 * appropriate action
1448 if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) {
1449 rq->errors = ILLEGAL_REQUEST;
1450 return BLKPREP_KILL;
1456 static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq)
1458 if (blk_fs_request(rq))
1459 return ide_cdrom_prep_fs(q, rq);
1460 else if (blk_pc_request(rq))
1461 return ide_cdrom_prep_pc(rq);
1466 struct cd_list_entry {
1467 const char *id_model;
1468 const char *id_firmware;
1469 unsigned int cd_flags;
1472 #ifdef CONFIG_IDE_PROC_FS
1473 static sector_t ide_cdrom_capacity(ide_drive_t *drive)
1475 unsigned long capacity, sectors_per_frame;
1477 if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL))
1480 return capacity * sectors_per_frame;
1483 static int proc_idecd_read_capacity(char *page, char **start, off_t off,
1484 int count, int *eof, void *data)
1486 ide_drive_t *drive = data;
1489 len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive));
1490 PROC_IDE_READ_RETURN(page, start, off, count, eof, len);
1493 static ide_proc_entry_t idecd_proc[] = {
1494 { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL },
1495 { NULL, 0, NULL, NULL }
1498 static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive)
1503 static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive)
1509 static const struct cd_list_entry ide_cd_quirks_list[] = {
1510 /* SCR-3231 doesn't support the SET_CD_SPEED command. */
1511 { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT },
1512 /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */
1513 { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD |
1514 IDE_AFLAG_PRE_ATAPI12, },
1515 /* Vertos 300, some versions of this drive like to talk BCD. */
1516 { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, },
1517 /* Vertos 600 ESD. */
1518 { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, },
1520 * Sanyo 3 CD changer uses a non-standard command for CD changing
1521 * (by default standard ATAPI support for CD changers is used).
1523 { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD },
1524 { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD },
1525 { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD },
1526 /* Stingray 8X CD-ROM. */
1527 { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 },
1529 * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length
1530 * mode sense page capabilities size, but older drives break.
1532 { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE },
1533 { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE },
1534 /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */
1535 { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS },
1537 * Some drives used by Apple don't advertise audio play
1538 * but they do support reading TOC & audio datas.
1540 { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1541 { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1542 { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1543 { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1544 { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1545 { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1546 { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE },
1547 { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE },
1551 static unsigned int ide_cd_flags(u16 *id)
1553 const struct cd_list_entry *cle = ide_cd_quirks_list;
1555 while (cle->id_model) {
1556 if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 &&
1557 (cle->id_firmware == NULL ||
1558 strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware)))
1559 return cle->cd_flags;
1566 static int ide_cdrom_setup(ide_drive_t *drive)
1568 struct cdrom_info *cd = drive->driver_data;
1569 struct cdrom_device_info *cdi = &cd->devinfo;
1570 struct request_queue *q = drive->queue;
1571 u16 *id = drive->id;
1572 char *fw_rev = (char *)&id[ATA_ID_FW_REV];
1575 ide_debug_log(IDE_DBG_PROBE, "enter");
1577 blk_queue_prep_rq(q, ide_cdrom_prep_fn);
1578 blk_queue_dma_alignment(q, 31);
1579 blk_queue_update_dma_pad(q, 15);
1581 q->unplug_delay = max((1 * HZ) / 1000, 1);
1583 drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
1584 drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id);
1586 if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) &&
1587 fw_rev[4] == '1' && fw_rev[6] <= '2')
1588 drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD |
1589 IDE_AFLAG_TOCADDR_AS_BCD);
1590 else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) &&
1591 fw_rev[4] == '1' && fw_rev[6] <= '2')
1592 drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD;
1593 else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD)
1594 /* 3 => use CD in slot 0 */
1595 cdi->sanyo_slot = 3;
1597 nslots = ide_cdrom_probe_capabilities(drive);
1599 blk_queue_hardsect_size(q, CD_FRAMESIZE);
1601 if (ide_cdrom_register(drive, nslots)) {
1602 printk(KERN_ERR PFX "%s: %s failed to register device with the"
1603 " cdrom driver.\n", drive->name, __func__);
1604 cd->devinfo.handle = NULL;
1608 ide_proc_register_driver(drive, cd->driver);
1612 static void ide_cd_remove(ide_drive_t *drive)
1614 struct cdrom_info *info = drive->driver_data;
1616 ide_debug_log(IDE_DBG_FUNC, "enter");
1618 ide_proc_unregister_driver(drive, info->driver);
1619 device_del(&info->dev);
1620 del_gendisk(info->disk);
1622 mutex_lock(&idecd_ref_mutex);
1623 put_device(&info->dev);
1624 mutex_unlock(&idecd_ref_mutex);
1627 static void ide_cd_release(struct device *dev)
1629 struct cdrom_info *info = to_ide_drv(dev, cdrom_info);
1630 struct cdrom_device_info *devinfo = &info->devinfo;
1631 ide_drive_t *drive = info->drive;
1632 struct gendisk *g = info->disk;
1634 ide_debug_log(IDE_DBG_FUNC, "enter");
1637 if (devinfo->handle == drive)
1638 unregister_cdrom(devinfo);
1639 drive->driver_data = NULL;
1640 blk_queue_prep_rq(drive->queue, NULL);
1641 g->private_data = NULL;
1646 static int ide_cd_probe(ide_drive_t *);
1648 static struct ide_driver ide_cdrom_driver = {
1650 .owner = THIS_MODULE,
1651 .name = "ide-cdrom",
1652 .bus = &ide_bus_type,
1654 .probe = ide_cd_probe,
1655 .remove = ide_cd_remove,
1656 .version = IDECD_VERSION,
1657 .do_request = ide_cd_do_request,
1658 #ifdef CONFIG_IDE_PROC_FS
1659 .proc_entries = ide_cd_proc_entries,
1660 .proc_devsets = ide_cd_proc_devsets,
1664 static int idecd_open(struct block_device *bdev, fmode_t mode)
1666 struct cdrom_info *info = ide_cd_get(bdev->bd_disk);
1672 rc = cdrom_open(&info->devinfo, bdev, mode);
1680 static int idecd_release(struct gendisk *disk, fmode_t mode)
1682 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
1684 cdrom_release(&info->devinfo, mode);
1691 static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg)
1693 struct packet_command cgc;
1698 if (copy_from_user(&spindown, (void __user *)arg, sizeof(char)))
1701 init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
1703 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0);
1707 buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f);
1708 return cdrom_mode_select(cdi, &cgc);
1711 static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg)
1713 struct packet_command cgc;
1718 init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
1720 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0);
1724 spindown = buffer[11] & 0x0f;
1725 if (copy_to_user((void __user *)arg, &spindown, sizeof(char)))
1730 static int idecd_ioctl(struct block_device *bdev, fmode_t mode,
1731 unsigned int cmd, unsigned long arg)
1733 struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info);
1737 case CDROMSETSPINDOWN:
1738 return idecd_set_spindown(&info->devinfo, arg);
1739 case CDROMGETSPINDOWN:
1740 return idecd_get_spindown(&info->devinfo, arg);
1745 err = generic_ide_ioctl(info->drive, bdev, cmd, arg);
1747 err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg);
1752 static int idecd_media_changed(struct gendisk *disk)
1754 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
1755 return cdrom_media_changed(&info->devinfo);
1758 static int idecd_revalidate_disk(struct gendisk *disk)
1760 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
1761 struct request_sense sense;
1763 ide_cd_read_toc(info->drive, &sense);
1768 static struct block_device_operations idecd_ops = {
1769 .owner = THIS_MODULE,
1771 .release = idecd_release,
1772 .locked_ioctl = idecd_ioctl,
1773 .media_changed = idecd_media_changed,
1774 .revalidate_disk = idecd_revalidate_disk
1777 /* module options */
1778 static unsigned long debug_mask;
1779 module_param(debug_mask, ulong, 0644);
1781 MODULE_DESCRIPTION("ATAPI CD-ROM Driver");
1783 static int ide_cd_probe(ide_drive_t *drive)
1785 struct cdrom_info *info;
1787 struct request_sense sense;
1789 ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x",
1790 drive->driver_req, drive->media);
1792 if (!strstr("ide-cdrom", drive->driver_req))
1795 if (drive->media != ide_cdrom && drive->media != ide_optical)
1798 drive->debug_mask = debug_mask;
1799 drive->irq_handler = cdrom_newpc_intr;
1801 info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL);
1803 printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n",
1808 g = alloc_disk(1 << PARTN_BITS);
1812 ide_init_disk(g, drive);
1814 info->dev.parent = &drive->gendev;
1815 info->dev.release = ide_cd_release;
1816 dev_set_name(&info->dev, dev_name(&drive->gendev));
1818 if (device_register(&info->dev))
1821 info->drive = drive;
1822 info->driver = &ide_cdrom_driver;
1825 g->private_data = &info->driver;
1827 drive->driver_data = info;
1830 g->driverfs_dev = &drive->gendev;
1831 g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;
1832 if (ide_cdrom_setup(drive)) {
1833 put_device(&info->dev);
1837 ide_cd_read_toc(drive, &sense);
1838 g->fops = &idecd_ops;
1839 g->flags |= GENHD_FL_REMOVABLE;
1851 static void __exit ide_cdrom_exit(void)
1853 driver_unregister(&ide_cdrom_driver.gen_driver);
1856 static int __init ide_cdrom_init(void)
1858 printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n");
1859 return driver_register(&ide_cdrom_driver.gen_driver);
1862 MODULE_ALIAS("ide:*m-cdrom*");
1863 MODULE_ALIAS("ide-cd");
1864 module_init(ide_cdrom_init);
1865 module_exit(ide_cdrom_exit);
1866 MODULE_LICENSE("GPL");