2  * ATAPI CD-ROM driver.
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
12  * See Documentation/cdrom/ide-cd.rst 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.
20  *	Documentation/ide/ChangeLog.ide-cd.1994-2004
23 #define DRV_NAME "ide-cd"
45 /* For SCSI -> ATAPI command conversion */
53 #include "ide-cd.h"
67 		if (ide_device_get(cd->drive))  in ide_cd_get()
70 			get_device(&cd->dev);  in ide_cd_get()
79 	ide_drive_t *drive = cd->drive;  in ide_cd_put()
82 	put_device(&cd->dev);  in ide_cd_put()
94 	drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;  in cdrom_saw_media_change()
95 	drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID;  in cdrom_saw_media_change()
100 	struct request_sense *sense = &drive->sense_data;  in cdrom_log_sense()  local
103 	if (!sense || !rq || (rq->rq_flags & RQF_QUIET))  in cdrom_log_sense()
106 	ide_debug_log(IDE_DBG_SENSE, "sense_key: 0x%x", sense->sense_key);  in cdrom_log_sense()
108 	switch (sense->sense_key) {  in cdrom_log_sense()
115 		 * commands or in-progress or becoming ready  in cdrom_log_sense()
117 		if (sense->asc == 0x3a || sense->asc == 0x04)  in cdrom_log_sense()
124 		 * reliably check if drive can auto-close  in cdrom_log_sense()
126 		if (scsi_req(rq)->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24)  in cdrom_log_sense()
133 		 * Some drives (i.e. Creative) fail to present the correct sense  in cdrom_log_sense()
148 	struct request_sense *sense = &drive->sense_data;  in cdrom_analyze_sense_data()  local
149 	struct cdrom_info *info = drive->driver_data;  in cdrom_analyze_sense_data()
154 				     sense->error_code, sense->sense_key);  in cdrom_analyze_sense_data()
158 					     failed_command->cmd[0]);  in cdrom_analyze_sense_data()
164 	 * If a read toc is executed for a CD-R or CD-RW medium where the first  in cdrom_analyze_sense_data()
168 	if (failed_command && scsi_req(failed_command)->cmd[0] == GPCMD_READ_TOC_PMA_ATIP)  in cdrom_analyze_sense_data()
169 		if (sense->sense_key == 0x05 && sense->asc == 0x24)  in cdrom_analyze_sense_data()
173 	if (sense->error_code == 0x70) {  in cdrom_analyze_sense_data()
174 		switch (sense->sense_key) {  in cdrom_analyze_sense_data()
178 			if (!sense->valid)  in cdrom_analyze_sense_data()
183 			sector = (sense->information[0] << 24) |  in cdrom_analyze_sense_data()
184 				 (sense->information[1] << 16) |  in cdrom_analyze_sense_data()
185 				 (sense->information[2] <<  8) |  in cdrom_analyze_sense_data()
186 				 (sense->information[3]);  in cdrom_analyze_sense_data()
188 			if (queue_logical_block_size(drive->queue) == 2048)  in cdrom_analyze_sense_data()
192 			bio_sectors = max(bio_sectors(failed_command->bio), 4U);  in cdrom_analyze_sense_data()
193 			sector &= ~(bio_sectors - 1);  in cdrom_analyze_sense_data()
203 			if (sector < get_capacity(info->disk) &&  in cdrom_analyze_sense_data()
204 			    drive->probed_capacity - sector < 4 * 75)  in cdrom_analyze_sense_data()
205 				set_capacity(info->disk, sector);  in cdrom_analyze_sense_data()
209 	ide_cd_log_error(drive->name, failed_command, sense);  in cdrom_analyze_sense_data()
215 	 * For ATA_PRIV_SENSE, "ide_req(rq)->special" points to the original  in ide_cd_complete_failed_rq()
216 	 * failed request.  Also, the sense data should be read  in ide_cd_complete_failed_rq()
218 	 * sense buffer if it got copied during mapping.  in ide_cd_complete_failed_rq()
220 	struct request *failed = ide_req(rq)->special;  in ide_cd_complete_failed_rq()
221 	void *sense = bio_data(rq->bio);  in ide_cd_complete_failed_rq()  local
225 		 * Sense is always read into drive->sense_data, copy back to the  in ide_cd_complete_failed_rq()
228 		memcpy(scsi_req(failed)->sense, sense, 18);  in ide_cd_complete_failed_rq()
229 		scsi_req(failed)->sense_len = scsi_req(rq)->sense_len;  in ide_cd_complete_failed_rq()
249 	struct cdrom_info *info = drive->driver_data;  in ide_cd_breathe()
251 	if (!scsi_req(rq)->result)  in ide_cd_breathe()
252 		info->write_timeout = jiffies +	ATAPI_WAIT_WRITE_BUSY;  in ide_cd_breathe()
254 	scsi_req(rq)->result = 1;  in ide_cd_breathe()
256 	if (time_after(jiffies, info->write_timeout))  in ide_cd_breathe()
263 		blk_mq_delay_kick_requeue_list(drive->queue, 1);  in ide_cd_breathe()
270 	if (!drive->sense_rq)  in ide_cd_free_sense()
273 	blk_mq_free_request(drive->sense_rq);  in ide_cd_free_sense()
274 	drive->sense_rq = NULL;  in ide_cd_free_sense()
275 	drive->sense_rq_armed = false;  in ide_cd_free_sense()
286 	ide_hwif_t *hwif = drive->hwif;  in cdrom_decode_status()
287 	struct request *rq = hwif->rq;  in cdrom_decode_status()
294 	ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, rq->cmd_type: 0x%x, err: 0x%x, "  in cdrom_decode_status()
296 				  rq->cmd[0], rq->cmd_type, err, stat);  in cdrom_decode_status()
300 		 * We got an error trying to get sense info from the drive  in cdrom_decode_status()
304 		rq->rq_flags |= RQF_FAILED;  in cdrom_decode_status()
309 	if (blk_rq_is_scsi(rq) && !scsi_req(rq)->result)  in cdrom_decode_status()
310 		scsi_req(rq)->result = SAM_STAT_CHECK_CONDITION;  in cdrom_decode_status()
324 			    !(rq->rq_flags & RQF_QUIET))  in cdrom_decode_status()
326 					drive->name);  in cdrom_decode_status()
340 		if (++scsi_req(rq)->result > ERROR_MAX)  in cdrom_decode_status()
345 		 * Don't print error message for this condition -- SFF8090i  in cdrom_decode_status()
351 		if (scsi_req(rq)->cmd[0] == GPCMD_START_STOP_UNIT)  in cdrom_decode_status()
359 		if (!(rq->rq_flags & RQF_QUIET))  in cdrom_decode_status()
365 		 * No point in re-trying a zillion times on a bad sector.  in cdrom_decode_status()
368 		if (!(rq->rq_flags & RQF_QUIET))  in cdrom_decode_status()
375 		if (!(rq->rq_flags & RQF_QUIET))  in cdrom_decode_status()
387 		} else if (++scsi_req(rq)->result > ERROR_MAX)  in cdrom_decode_status()
393 		rq->rq_flags |= RQF_FAILED;  in cdrom_decode_status()
398 	 * End a request through request sense analysis when we have sense data.  in cdrom_decode_status()
404 	/* if we got a CHECK_CONDITION status, queue a request sense command */  in cdrom_decode_status()
411 		hwif->rq = NULL;  in cdrom_decode_status()
419 	struct request *rq = cmd->rq;  in ide_cd_request_sense_fixup()
421 	ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]);  in ide_cd_request_sense_fixup()
424 	 * Some of the trailing request sense fields are optional,  in ide_cd_request_sense_fixup()
427 	if (scsi_req(rq)->cmd[0] == GPCMD_REQUEST_SENSE &&  in ide_cd_request_sense_fixup()
428 	    cmd->nleft > 0 && cmd->nleft <= 5)  in ide_cd_request_sense_fixup()
429 		cmd->nleft = 0;  in ide_cd_request_sense_fixup()
437 	struct cdrom_info *info = drive->driver_data;  in ide_cd_queue_pc()
455 		rq = blk_get_request(drive->queue,  in ide_cd_queue_pc()
457 		memcpy(scsi_req(rq)->cmd, cmd, BLK_MAX_CDB);  in ide_cd_queue_pc()
458 		ide_req(rq)->type = ATA_PRIV_PC;  in ide_cd_queue_pc()
459 		rq->rq_flags |= rq_flags;  in ide_cd_queue_pc()
460 		rq->timeout = timeout;  in ide_cd_queue_pc()
462 			error = blk_rq_map_kern(drive->queue, rq, buffer,  in ide_cd_queue_pc()
470 		blk_execute_rq(drive->queue, info->disk, rq, 0);  in ide_cd_queue_pc()
471 		error = scsi_req(rq)->result ? -EIO : 0;  in ide_cd_queue_pc()
474 			*bufflen = scsi_req(rq)->resid_len;  in ide_cd_queue_pc()
475 		scsi_normalize_sense(scsi_req(rq)->sense,  in ide_cd_queue_pc()
476 				     scsi_req(rq)->sense_len, sshdr);  in ide_cd_queue_pc()
482 		failed = (rq->rq_flags & RQF_FAILED) != 0;  in ide_cd_queue_pc()
488 			if (sshdr->sense_key == UNIT_ATTENTION)  in ide_cd_queue_pc()
490 			else if (sshdr->sense_key == NOT_READY &&  in ide_cd_queue_pc()
491 				 sshdr->asc == 4 && sshdr->ascq != 4) {  in ide_cd_queue_pc()
502 			--retries;  in ide_cd_queue_pc()
510 	return failed ? -EIO : 0;  in ide_cd_queue_pc()
518 	unsigned int nr_bytes = cmd->nbytes - cmd->nleft;  in ide_cd_error_cmd()
520 	if (cmd->tf_flags & IDE_TFLAG_WRITE)  in ide_cd_error_cmd()
521 		nr_bytes -= cmd->last_xfer_len;  in ide_cd_error_cmd()
540 		req->cmd[0] = GPCMD_READ_10;  in ide_cdrom_prep_fs()
542 		req->cmd[0] = GPCMD_WRITE_10;  in ide_cdrom_prep_fs()
547 	req->cmd[2] = (block >> 24) & 0xff;  in ide_cdrom_prep_fs()
548 	req->cmd[3] = (block >> 16) & 0xff;  in ide_cdrom_prep_fs()
549 	req->cmd[4] = (block >>  8) & 0xff;  in ide_cdrom_prep_fs()
550 	req->cmd[5] = block & 0xff;  in ide_cdrom_prep_fs()
555 	req->cmd[7] = (blocks >> 8) & 0xff;  in ide_cdrom_prep_fs()
556 	req->cmd[8] = blocks & 0xff;  in ide_cdrom_prep_fs()
557 	req->cmd_len = 10;  in ide_cdrom_prep_fs()
567 	u8 *c = scsi_req(rq)->cmd;  in ide_cdrom_prep_pc()
569 	/* transform 6-byte read/write commands to the 10-byte version */  in ide_cdrom_prep_pc()
577 		c[0] += (READ_10 - READ_6);  in ide_cdrom_prep_pc()
578 		scsi_req(rq)->cmd_len = 10;  in ide_cdrom_prep_pc()
583 	 * it's silly to pretend we understand 6-byte sense commands, just  in ide_cdrom_prep_pc()
588 		scsi_req(rq)->result = ILLEGAL_REQUEST;  in ide_cdrom_prep_pc()
600 		return ide_cdrom_prep_fs(drive->queue, rq);  in ide_cdrom_prep_rq()
609 	ide_hwif_t *hwif = drive->hwif;  in cdrom_newpc_intr()
610 	struct ide_cmd *cmd = &hwif->cmd;  in cdrom_newpc_intr()
611 	struct request *rq = hwif->rq;  in cdrom_newpc_intr()
615 	int sense = ata_sense_request(rq);  in cdrom_newpc_intr()  local
620 	ide_debug_log(IDE_DBG_PC, "cmd: 0x%x, write: 0x%x", rq->cmd[0], write);  in cdrom_newpc_intr()
623 	dma = drive->dma;  in cdrom_newpc_intr()
625 		drive->dma = 0;  in cdrom_newpc_intr()
626 		drive->waiting_for_dma = 0;  in cdrom_newpc_intr()
627 		dma_error = hwif->dma_ops->dma_end(drive);  in cdrom_newpc_intr()
630 			printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name,  in cdrom_newpc_intr()
637 	stat = hwif->tp_ops->read_status(hwif);  in cdrom_newpc_intr()
658 	thislen = !blk_rq_is_passthrough(rq) ? len : cmd->nleft;  in cdrom_newpc_intr()
674 			if (cmd->nleft > 0) {  in cdrom_newpc_intr()
676 					"(%u bytes)\n", drive->name, __func__,  in cdrom_newpc_intr()
677 					cmd->nleft);  in cdrom_newpc_intr()
679 					rq->rq_flags |= RQF_FAILED;  in cdrom_newpc_intr()
687 			uptodate = cmd->nleft ? 0 : 1;  in cdrom_newpc_intr()
695 				uptodate = cmd->nleft ? 0 : 1;  in cdrom_newpc_intr()
699 				rq->rq_flags |= RQF_FAILED;  in cdrom_newpc_intr()
711 	cmd->last_xfer_len = 0;  in cdrom_newpc_intr()
713 	ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, "  in cdrom_newpc_intr()
715 				  rq->cmd_type, ireason);  in cdrom_newpc_intr()
719 		int blen = min_t(int, thislen, cmd->nleft);  in cdrom_newpc_intr()
721 		if (cmd->nleft == 0)  in cdrom_newpc_intr()
725 		cmd->last_xfer_len += blen;  in cdrom_newpc_intr()
727 		thislen -= blen;  in cdrom_newpc_intr()
728 		len -= blen;  in cdrom_newpc_intr()
730 		if (sense && write == 0)  in cdrom_newpc_intr()
731 			scsi_req(rq)->sense_len += blen;  in cdrom_newpc_intr()
740 				drive->name);  in cdrom_newpc_intr()
748 		timeout = rq->timeout;  in cdrom_newpc_intr()
759 	hwif->expiry = expiry;  in cdrom_newpc_intr()
765 		scsi_req(rq)->resid_len = 0;  in cdrom_newpc_intr()
767 		hwif->rq = NULL;  in cdrom_newpc_intr()
769 		if (sense && uptodate)  in cdrom_newpc_intr()
773 			if (cmd->nleft == 0)  in cdrom_newpc_intr()
776 			if (uptodate <= 0 && scsi_req(rq)->result == 0)  in cdrom_newpc_intr()
777 				scsi_req(rq)->result = -EIO;  in cdrom_newpc_intr()
780 		if (uptodate == 0 && rq->bio)  in cdrom_newpc_intr()
786 			scsi_req(rq)->resid_len -= cmd->nbytes - cmd->nleft;  in cdrom_newpc_intr()
787 			if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE))  in cdrom_newpc_intr()
788 				scsi_req(rq)->resid_len += cmd->last_xfer_len;  in cdrom_newpc_intr()
793 		if (sense && rc == 2)  in cdrom_newpc_intr()
794 			ide_error(drive, "request sense failure", stat);  in cdrom_newpc_intr()
803 	struct cdrom_info *cd = drive->driver_data;  in cdrom_start_rw()
804 	struct request_queue *q = drive->queue;  in cdrom_start_rw()
809 	ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, "  in cdrom_start_rw()
811 				  rq->cmd[0], rq->cmd_flags, sectors_per_frame);  in cdrom_start_rw()
815 		if (get_disk_ro(cd->disk))  in cdrom_start_rw()
826 	if ((blk_rq_sectors(rq) & (sectors_per_frame - 1)) ||  in cdrom_start_rw()
827 	    (blk_rq_pos(rq) & (sectors_per_frame - 1)))  in cdrom_start_rw()
831 	drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);  in cdrom_start_rw()
834 		cd->devinfo.media_written = 1;  in cdrom_start_rw()
836 	rq->timeout = ATAPI_WAIT_PC;  in cdrom_start_rw()
844 	ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x",  in cdrom_do_block_pc()
845 				  rq->cmd[0], rq->cmd_type);  in cdrom_do_block_pc()
848 		rq->rq_flags |= RQF_QUIET;  in cdrom_do_block_pc()
850 		rq->rq_flags &= ~RQF_FAILED;  in cdrom_do_block_pc()
852 	drive->dma = 0;  in cdrom_do_block_pc()
855 	if (rq->bio) {  in cdrom_do_block_pc()
856 		struct request_queue *q = drive->queue;  in cdrom_do_block_pc()
857 		char *buf = bio_data(rq->bio);  in cdrom_do_block_pc()
860 		drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);  in cdrom_do_block_pc()
868 		alignment = queue_dma_alignment(q) | q->dma_pad_mask;  in cdrom_do_block_pc()
870 		    || blk_rq_bytes(rq) & q->dma_pad_mask  in cdrom_do_block_pc()
872 			drive->dma = 0;  in cdrom_do_block_pc()
884 				  rq->cmd[0], (unsigned long long)block);  in ide_cd_do_request()
886 	if (drive->debug_mask & IDE_DBG_RQ)  in ide_cd_do_request()
897 		if (!rq->timeout)  in ide_cd_do_request()
898 			rq->timeout = ATAPI_WAIT_PC;  in ide_cd_do_request()
903 		switch (ide_req(rq)->type) {  in ide_cd_do_request()
916 	/* prepare sense request for this command */  in ide_cd_do_request()
949  * subsequent request sense command. The pointer can also be NULL, in which case
950  * no sense information is returned.
954 	msf->minute = bcd2bin(msf->minute);  in msf_from_bcd()
955 	msf->second = bcd2bin(msf->second);  in msf_from_bcd()
956 	msf->frame  = bcd2bin(msf->frame);  in msf_from_bcd()
961 	struct cdrom_info *info = drive->driver_data;  in cdrom_check_status()
968 		return -EIO;  in cdrom_check_status()
970 	cdi = &info->devinfo;  in cdrom_check_status()
979 	cmd[7] = cdi->sanyo_slot % 3;  in cdrom_check_status()
1023 				drive->name, blocklen);  in cdrom_read_capacity()
1062 	struct cdrom_info *info = drive->driver_data;  in ide_cd_read_toc()
1063 	struct cdrom_device_info *cdi = &info->devinfo;  in ide_cd_read_toc()
1064 	struct atapi_toc *toc = info->toc;  in ide_cd_read_toc()
1079 					drive->name);  in ide_cd_read_toc()
1080 			return -ENOMEM;  in ide_cd_read_toc()
1082 		info->toc = toc;  in ide_cd_read_toc()
1091 	if (drive->atapi_flags & IDE_AFLAG_TOC_VALID)  in ide_cd_read_toc()
1095 	stat = cdrom_read_capacity(drive, &toc->capacity, &sectors_per_frame);  in ide_cd_read_toc()
1097 		toc->capacity = 0x1fffff;  in ide_cd_read_toc()
1099 	set_capacity(info->disk, toc->capacity * sectors_per_frame);  in ide_cd_read_toc()
1101 	drive->probed_capacity = toc->capacity * sectors_per_frame;  in ide_cd_read_toc()
1103 	blk_queue_logical_block_size(drive->queue,  in ide_cd_read_toc()
1107 	stat = ide_cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr,  in ide_cd_read_toc()
1112 	if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {  in ide_cd_read_toc()
1113 		toc->hdr.first_track = bcd2bin(toc->hdr.first_track);  in ide_cd_read_toc()
1114 		toc->hdr.last_track  = bcd2bin(toc->hdr.last_track);  in ide_cd_read_toc()
1117 	ntracks = toc->hdr.last_track - toc->hdr.first_track + 1;  in ide_cd_read_toc()
1119 		return -EIO;  in ide_cd_read_toc()
1124 	stat = ide_cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0,  in ide_cd_read_toc()
1125 				  (char *)&toc->hdr,  in ide_cd_read_toc()
1130 	if (stat && toc->hdr.first_track > 1) {  in ide_cd_read_toc()
1145 					   (char *)&toc->hdr,  in ide_cd_read_toc()
1152 		if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {  in ide_cd_read_toc()
1153 			toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT);  in ide_cd_read_toc()
1154 			toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT);  in ide_cd_read_toc()
1156 			toc->hdr.first_track = CDROM_LEADOUT;  in ide_cd_read_toc()
1157 			toc->hdr.last_track = CDROM_LEADOUT;  in ide_cd_read_toc()
1164 	toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length);  in ide_cd_read_toc()
1166 	if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {  in ide_cd_read_toc()
1167 		toc->hdr.first_track = bcd2bin(toc->hdr.first_track);  in ide_cd_read_toc()
1168 		toc->hdr.last_track  = bcd2bin(toc->hdr.last_track);  in ide_cd_read_toc()
1172 		if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {  in ide_cd_read_toc()
1173 			if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD)  in ide_cd_read_toc()
1174 				toc->ent[i].track = bcd2bin(toc->ent[i].track);  in ide_cd_read_toc()
1175 			msf_from_bcd(&toc->ent[i].addr.msf);  in ide_cd_read_toc()
1177 		toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute,  in ide_cd_read_toc()
1178 						  toc->ent[i].addr.msf.second,  in ide_cd_read_toc()
1179 						  toc->ent[i].addr.msf.frame);  in ide_cd_read_toc()
1182 	if (toc->hdr.first_track != CDROM_LEADOUT) {  in ide_cd_read_toc()
1189 		toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba);  in ide_cd_read_toc()
1193 		toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */  in ide_cd_read_toc()
1196 	if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {  in ide_cd_read_toc()
1197 		/* re-read multisession information using MSF format */  in ide_cd_read_toc()
1204 		toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute,  in ide_cd_read_toc()
1209 	toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track);  in ide_cd_read_toc()
1213 	if (!stat && (last_written > toc->capacity)) {  in ide_cd_read_toc()
1214 		toc->capacity = last_written;  in ide_cd_read_toc()
1215 		set_capacity(info->disk, toc->capacity * sectors_per_frame);  in ide_cd_read_toc()
1216 		drive->probed_capacity = toc->capacity * sectors_per_frame;  in ide_cd_read_toc()
1220 	drive->atapi_flags |= IDE_AFLAG_TOC_VALID;  in ide_cd_read_toc()
1227 	struct cdrom_info *info = drive->driver_data;  in ide_cdrom_get_capabilities()
1228 	struct cdrom_device_info *cdi = &info->devinfo;  in ide_cdrom_get_capabilities()
1234 	if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0)  in ide_cdrom_get_capabilities()
1235 		size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE;  in ide_cdrom_get_capabilities()
1243 	} while (--attempts);  in ide_cdrom_get_capabilities()
1249 	struct cdrom_info *cd = drive->driver_data;  in ide_cdrom_update_speed()
1254 	if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) {  in ide_cdrom_update_speed()
1265 	cd->current_speed = DIV_ROUND_CLOSEST(curspeed, 176);  in ide_cdrom_update_speed()
1266 	cd->max_speed = DIV_ROUND_CLOSEST(maxspeed, 176);  in ide_cdrom_update_speed()
1294 	struct cdrom_info *info = drive->driver_data;  in ide_cdrom_register()
1295 	struct cdrom_device_info *devinfo = &info->devinfo;  in ide_cdrom_register()
1299 	devinfo->ops = &ide_cdrom_dops;  in ide_cdrom_register()
1300 	devinfo->speed = info->current_speed;  in ide_cdrom_register()
1301 	devinfo->capacity = nslots;  in ide_cdrom_register()
1302 	devinfo->handle = drive;  in ide_cdrom_register()
1303 	strcpy(devinfo->name, drive->name);  in ide_cdrom_register()
1305 	if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT)  in ide_cdrom_register()
1306 		devinfo->mask |= CDC_SELECT_SPEED;  in ide_cdrom_register()
1308 	return register_cdrom(info->disk, devinfo);  in ide_cdrom_register()
1313 	struct cdrom_info *cd = drive->driver_data;  in ide_cdrom_probe_capabilities()
1314 	struct cdrom_device_info *cdi = &cd->devinfo;  in ide_cdrom_probe_capabilities()
1320 				     drive->media, drive->atapi_flags);  in ide_cdrom_probe_capabilities()
1322 	cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R |  in ide_cdrom_probe_capabilities()
1326 	if (drive->media == ide_optical) {  in ide_cdrom_probe_capabilities()
1327 		cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM);  in ide_cdrom_probe_capabilities()
1328 		printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n",  in ide_cdrom_probe_capabilities()
1329 				drive->name);  in ide_cdrom_probe_capabilities()
1333 	if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) {  in ide_cdrom_probe_capabilities()
1334 		drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT;  in ide_cdrom_probe_capabilities()
1335 		cdi->mask &= ~CDC_PLAY_AUDIO;  in ide_cdrom_probe_capabilities()
1341 	 * with ide_cdrom_packet(), which extracts the drive from cdi->handle.  in ide_cdrom_probe_capabilities()
1343 	 * it can't do this. Same goes for cdi->ops.  in ide_cdrom_probe_capabilities()
1345 	cdi->handle = drive;  in ide_cdrom_probe_capabilities()
1346 	cdi->ops = &ide_cdrom_dops;  in ide_cdrom_probe_capabilities()
1352 		drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;  in ide_cdrom_probe_capabilities()
1354 		drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT;  in ide_cdrom_probe_capabilities()
1356 		cdi->mask &= ~CDC_CD_R;  in ide_cdrom_probe_capabilities()
1358 		cdi->mask &= ~(CDC_CD_RW | CDC_RAM);  in ide_cdrom_probe_capabilities()
1360 		cdi->mask &= ~CDC_DVD;  in ide_cdrom_probe_capabilities()
1362 		cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM);  in ide_cdrom_probe_capabilities()
1364 		cdi->mask &= ~CDC_DVD_R;  in ide_cdrom_probe_capabilities()
1365 	if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK))  in ide_cdrom_probe_capabilities()
1366 		cdi->mask &= ~CDC_PLAY_AUDIO;  in ide_cdrom_probe_capabilities()
1371 	    (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE))  in ide_cdrom_probe_capabilities()
1372 		cdi->mask |= CDC_CLOSE_TRAY;  in ide_cdrom_probe_capabilities()
1374 	if (cdi->sanyo_slot > 0) {  in ide_cdrom_probe_capabilities()
1375 		cdi->mask &= ~CDC_SELECT_DISC;  in ide_cdrom_probe_capabilities()
1381 			cdi->mask &= ~CDC_SELECT_DISC;  in ide_cdrom_probe_capabilities()
1386 	printk(KERN_INFO PFX "%s: ATAPI", drive->name);  in ide_cdrom_probe_capabilities()
1389 	if (cd->max_speed)  in ide_cdrom_probe_capabilities()
1390 		printk(KERN_CONT " %dX", cd->max_speed);  in ide_cdrom_probe_capabilities()
1392 	printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM");  in ide_cdrom_probe_capabilities()
1394 	if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0)  in ide_cdrom_probe_capabilities()
1396 				 (cdi->mask & CDC_DVD_R) ? "" : "-R",  in ide_cdrom_probe_capabilities()
1397 				 (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM");  in ide_cdrom_probe_capabilities()
1399 	if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0)  in ide_cdrom_probe_capabilities()
1401 				 (cdi->mask & CDC_CD_R) ? "" : "-R",  in ide_cdrom_probe_capabilities()
1402 				 (cdi->mask & CDC_CD_RW) ? "" : "/RW");  in ide_cdrom_probe_capabilities()
1404 	if ((cdi->mask & CDC_SELECT_DISC) == 0)  in ide_cdrom_probe_capabilities()
1434 	ide_drive_t *drive = m->private;  in idecd_capacity_proc_show()
1457 	/* SCR-3231 doesn't support the SET_CD_SPEED command. */
1458 	{ "SAMSUNG CD-ROM SCR-3231", NULL,   IDE_AFLAG_NO_SPEED_SELECT	     },
1460 	{ "NEC CD-ROM DRIVE:260",    "1.01", IDE_AFLAG_TOCADDR_AS_BCD |
1467 	 * Sanyo 3 CD changer uses a non-standard command for CD changing
1470 	{ "CD-ROM CDR-C3 G",	     NULL,   IDE_AFLAG_SANYO_3CD	     },
1471 	{ "CD-ROM CDR-C3G",	     NULL,   IDE_AFLAG_SANYO_3CD	     },
1472 	{ "CD-ROM CDR_C36",	     NULL,   IDE_AFLAG_SANYO_3CD	     },
1473 	/* Stingray 8X CD-ROM. */
1474 	{ "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 },
1476 	 * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length
1477 	 * mode sense page capabilities size, but older drives break.
1480 	{ "WPI CDS-32X",		NULL,	IDE_AFLAG_FULL_CAPS_PAGE     },
1481 	/* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */
1487 	{ "MATSHITADVD-ROM SR-8187", NULL,   IDE_AFLAG_PLAY_AUDIO_OK	     },
1488 	{ "MATSHITADVD-ROM SR-8186", NULL,   IDE_AFLAG_PLAY_AUDIO_OK	     },
1489 	{ "MATSHITADVD-ROM SR-8176", NULL,   IDE_AFLAG_PLAY_AUDIO_OK	     },
1490 	{ "MATSHITADVD-ROM SR-8174", NULL,   IDE_AFLAG_PLAY_AUDIO_OK	     },
1491 	{ "Optiarc DVD RW AD-5200A", NULL,   IDE_AFLAG_PLAY_AUDIO_OK	     },
1492 	{ "Optiarc DVD RW AD-7200A", NULL,   IDE_AFLAG_PLAY_AUDIO_OK	     },
1493 	{ "Optiarc DVD RW AD-7543A", NULL,   IDE_AFLAG_NO_AUTOCLOSE	     },
1494 	{ "TEAC CD-ROM CD-224E",     NULL,   IDE_AFLAG_NO_AUTOCLOSE	     },
1502 	while (cle->id_model) {  in ide_cd_flags()
1503 		if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 &&  in ide_cd_flags()
1504 		    (cle->id_firmware == NULL ||  in ide_cd_flags()
1505 		     strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware)))  in ide_cd_flags()
1506 			return cle->cd_flags;  in ide_cd_flags()
1515 	struct cdrom_info *cd = drive->driver_data;  in ide_cdrom_setup()
1516 	struct cdrom_device_info *cdi = &cd->devinfo;  in ide_cdrom_setup()
1517 	struct request_queue *q = drive->queue;  in ide_cdrom_setup()
1518 	u16 *id = drive->id;  in ide_cdrom_setup()
1524 	drive->prep_rq = ide_cdrom_prep_rq;  in ide_cdrom_setup()
1528 	drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;  in ide_cdrom_setup()
1529 	drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id);  in ide_cdrom_setup()
1531 	if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) &&  in ide_cdrom_setup()
1533 		drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD |  in ide_cdrom_setup()
1535 	else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) &&  in ide_cdrom_setup()
1537 		drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD;  in ide_cdrom_setup()
1538 	else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD)  in ide_cdrom_setup()
1540 		cdi->sanyo_slot = 3;  in ide_cdrom_setup()
1548 				" cdrom driver.\n", drive->name, __func__);  in ide_cdrom_setup()
1549 		cd->devinfo.handle = NULL;  in ide_cdrom_setup()
1553 	ide_proc_register_driver(drive, cd->driver);  in ide_cdrom_setup()
1559 	struct cdrom_info *info = drive->driver_data;  in ide_cd_remove()
1563 	ide_proc_unregister_driver(drive, info->driver);  in ide_cd_remove()
1564 	device_del(&info->dev);  in ide_cd_remove()
1565 	del_gendisk(info->disk);  in ide_cd_remove()
1568 	put_device(&info->dev);  in ide_cd_remove()
1575 	struct cdrom_device_info *devinfo = &info->devinfo;  in ide_cd_release()
1576 	ide_drive_t *drive = info->drive;  in ide_cd_release()
1577 	struct gendisk *g = info->disk;  in ide_cd_release()
1581 	kfree(info->toc);  in ide_cd_release()
1582 	if (devinfo->handle == drive)  in ide_cd_release()
1584 	drive->driver_data = NULL;  in ide_cd_release()
1585 	drive->prep_rq = NULL;  in ide_cd_release()
1586 	g->private_data = NULL;  in ide_cd_release()
1596 		.name		= "ide-cdrom",
1609 static int idecd_open(struct block_device *bdev, fmode_t mode)  in idecd_open()  argument
1612 	int rc = -ENXIO;  in idecd_open()
1615 		info = ide_drv_g(bdev->bd_disk, cdrom_info);  in idecd_open()
1617 		ide_cd_read_toc(info->drive);  in idecd_open()
1621 	info = ide_cd_get(bdev->bd_disk);  in idecd_open()
1625 	rc = cdrom_open(&info->devinfo, bdev, mode);  in idecd_open()
1633 static void idecd_release(struct gendisk *disk, fmode_t mode)  in idecd_release()  argument
1638 	cdrom_release(&info->devinfo, mode);  in idecd_release()
1652 		return -EFAULT;  in idecd_set_spindown()
1679 		return -EFAULT;  in idecd_get_spindown()
1683 static int idecd_locked_ioctl(struct block_device *bdev, fmode_t mode,  in idecd_locked_ioctl()  argument
1686 	struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info);  in idecd_locked_ioctl()
1691 		return idecd_set_spindown(&info->devinfo, arg);  in idecd_locked_ioctl()
1693 		return idecd_get_spindown(&info->devinfo, arg);  in idecd_locked_ioctl()
1698 	err = generic_ide_ioctl(info->drive, bdev, cmd, arg);  in idecd_locked_ioctl()
1699 	if (err == -EINVAL)  in idecd_locked_ioctl()
1700 		err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg);  in idecd_locked_ioctl()
1705 static int idecd_ioctl(struct block_device *bdev, fmode_t mode,  in idecd_ioctl()  argument
1711 	ret = idecd_locked_ioctl(bdev, mode, cmd, arg);  in idecd_ioctl()
1717 static int idecd_locked_compat_ioctl(struct block_device *bdev, fmode_t mode,  in idecd_locked_compat_ioctl()  argument
1720 	struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info);  in idecd_locked_compat_ioctl()
1726 		return idecd_set_spindown(&info->devinfo, (unsigned long)argp);  in idecd_locked_compat_ioctl()
1728 		return idecd_get_spindown(&info->devinfo, (unsigned long)argp);  in idecd_locked_compat_ioctl()
1733 	err = generic_ide_ioctl(info->drive, bdev, cmd, arg);  in idecd_locked_compat_ioctl()
1734 	if (err == -EINVAL)  in idecd_locked_compat_ioctl()
1735 		err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd,  in idecd_locked_compat_ioctl()
1741 static int idecd_compat_ioctl(struct block_device *bdev, fmode_t mode,  in idecd_compat_ioctl()  argument
1747 	ret = idecd_locked_compat_ioctl(bdev, mode, cmd, arg);  in idecd_compat_ioctl()
1757 	return cdrom_check_events(&info->devinfo, clearing);  in idecd_check_events()
1774 MODULE_DESCRIPTION("ATAPI CD-ROM Driver");
1782 				     drive->driver_req, drive->media);  in ide_cd_probe()
1784 	if (!strstr("ide-cdrom", drive->driver_req))  in ide_cd_probe()
1787 	if (drive->media != ide_cdrom && drive->media != ide_optical)  in ide_cd_probe()
1790 	drive->debug_mask = debug_mask;  in ide_cd_probe()
1791 	drive->irq_handler = cdrom_newpc_intr;  in ide_cd_probe()
1796 				drive->name);  in ide_cd_probe()
1806 	info->dev.parent = &drive->gendev;  in ide_cd_probe()
1807 	info->dev.release = ide_cd_release;  in ide_cd_probe()
1808 	dev_set_name(&info->dev, "%s", dev_name(&drive->gendev));  in ide_cd_probe()
1810 	if (device_register(&info->dev))  in ide_cd_probe()
1813 	info->drive = drive;  in ide_cd_probe()
1814 	info->driver = &ide_cdrom_driver;  in ide_cd_probe()
1815 	info->disk = g;  in ide_cd_probe()
1817 	g->private_data = &info->driver;  in ide_cd_probe()
1819 	drive->driver_data = info;  in ide_cd_probe()
1821 	g->minors = 1;  in ide_cd_probe()
1822 	g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;  in ide_cd_probe()
1824 		put_device(&info->dev);  in ide_cd_probe()
1829 	g->fops = &idecd_ops;  in ide_cd_probe()
1830 	g->flags |= GENHD_FL_REMOVABLE | GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE;  in ide_cd_probe()
1831 	g->events = DISK_EVENT_MEDIA_CHANGE;  in ide_cd_probe()
1832 	device_add_disk(&drive->gendev, g, NULL);  in ide_cd_probe()
1840 	return -ENODEV;  in ide_cd_probe()
1854 MODULE_ALIAS("ide:*m-cdrom*");
1855 MODULE_ALIAS("ide-cd");