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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
Bartlomiej Zolnierkiewicz3bb46632008-02-01 23:09:28 +01002 * ATAPI CD-ROM driver.
Linus Torvalds1da177e2005-04-16 15:20:36 -07003 *
Bartlomiej Zolnierkiewicz59bca8c2008-02-01 23:09:33 +01004 * 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>
Bartlomiej Zolnierkiewicz14fa91c2009-03-31 20:15:16 +02007 * Copyright (C) 2005, 2007-2009 Bartlomiej Zolnierkiewicz
Linus Torvalds1da177e2005-04-16 15:20:36 -07008 *
9 * May be copied or modified under the terms of the GNU General Public
10 * License. See linux/COPYING for more information.
11 *
Linus Torvalds1da177e2005-04-16 15:20:36 -070012 * See Documentation/cdrom/ide-cd for usage information.
13 *
14 * Suggestions are welcome. Patches that work are more welcome though. ;-)
Bartlomiej Zolnierkiewicz116e6902009-03-31 20:14:59 +020015 *
16 * Documentation:
17 * Mt. Fuji (SFF8090 version 4) and ATAPI (SFF-8020i rev 2.6) standards.
Linus Torvalds1da177e2005-04-16 15:20:36 -070018 *
Bartlomiej Zolnierkiewicz03553352008-02-01 23:09:18 +010019 * For historical changelog please see:
20 * Documentation/ide/ChangeLog.ide-cd.1994-2004
21 */
22
Borislav Petkovfc8323f2008-10-13 21:39:48 +020023#define DRV_NAME "ide-cd"
24#define PFX DRV_NAME ": "
25
Bartlomiej Zolnierkiewicz3bb46632008-02-01 23:09:28 +010026#define IDECD_VERSION "5.00"
Linus Torvalds1da177e2005-04-16 15:20:36 -070027
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#include <linux/module.h>
29#include <linux/types.h>
30#include <linux/kernel.h>
31#include <linux/delay.h>
32#include <linux/timer.h>
Alexey Dobriyan6d703a82009-09-01 17:52:57 -070033#include <linux/seq_file.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070034#include <linux/slab.h>
35#include <linux/interrupt.h>
36#include <linux/errno.h>
37#include <linux/cdrom.h>
38#include <linux/ide.h>
39#include <linux/completion.h>
Arjan van de Vencf8b8972006-03-23 03:00:45 -080040#include <linux/mutex.h>
Bartlomiej Zolnierkiewicz9a6dc662008-02-01 23:09:22 +010041#include <linux/bcd.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070042
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +020043/* For SCSI -> ATAPI command conversion */
44#include <scsi/scsi.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070045
Borislav Petkov9aba4682008-04-26 22:25:15 +020046#include <linux/irq.h>
47#include <linux/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070048#include <asm/byteorder.h>
Borislav Petkov9aba4682008-04-26 22:25:15 +020049#include <linux/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070050#include <asm/unaligned.h>
51
52#include "ide-cd.h"
53
Arnd Bergmann2a48fc02010-06-02 14:28:52 +020054static DEFINE_MUTEX(ide_cd_mutex);
Arjan van de Vencf8b8972006-03-23 03:00:45 -080055static DEFINE_MUTEX(idecd_ref_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -070056
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +010057static void ide_cd_release(struct device *);
Bartlomiej Zolnierkiewicz08da5912008-07-24 22:53:15 +020058
Linus Torvalds1da177e2005-04-16 15:20:36 -070059static struct cdrom_info *ide_cd_get(struct gendisk *disk)
60{
61 struct cdrom_info *cd = NULL;
62
Arjan van de Vencf8b8972006-03-23 03:00:45 -080063 mutex_lock(&idecd_ref_mutex);
Borislav Petkov5aeddf92008-10-13 21:39:34 +020064 cd = ide_drv_g(disk, cdrom_info);
Bartlomiej Zolnierkiewicz08da5912008-07-24 22:53:15 +020065 if (cd) {
Bartlomiej Zolnierkiewiczd3e33ff2008-08-05 18:16:59 +020066 if (ide_device_get(cd->drive))
Bartlomiej Zolnierkiewicz08da5912008-07-24 22:53:15 +020067 cd = NULL;
Bartlomiej Zolnierkiewiczd3e33ff2008-08-05 18:16:59 +020068 else
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +010069 get_device(&cd->dev);
Bartlomiej Zolnierkiewiczd3e33ff2008-08-05 18:16:59 +020070
Bartlomiej Zolnierkiewicz08da5912008-07-24 22:53:15 +020071 }
Arjan van de Vencf8b8972006-03-23 03:00:45 -080072 mutex_unlock(&idecd_ref_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -070073 return cd;
74}
75
Linus Torvalds1da177e2005-04-16 15:20:36 -070076static void ide_cd_put(struct cdrom_info *cd)
77{
Bartlomiej Zolnierkiewiczd3e33ff2008-08-05 18:16:59 +020078 ide_drive_t *drive = cd->drive;
79
Arjan van de Vencf8b8972006-03-23 03:00:45 -080080 mutex_lock(&idecd_ref_mutex);
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +010081 put_device(&cd->dev);
Bartlomiej Zolnierkiewiczd3e33ff2008-08-05 18:16:59 +020082 ide_device_put(drive);
Arjan van de Vencf8b8972006-03-23 03:00:45 -080083 mutex_unlock(&idecd_ref_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -070084}
85
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +020086/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070087 * Generic packet command support and error handling routines.
88 */
89
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +020090/* Mark that we've seen a media change and invalidate our internal buffers. */
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +020091static void cdrom_saw_media_change(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -070092{
Bartlomiej Zolnierkiewiczfe11edf2008-10-17 18:09:11 +020093 drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
Borislav Petkov570f89e2008-07-23 19:56:02 +020094 drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID;
Linus Torvalds1da177e2005-04-16 15:20:36 -070095}
96
Borislav Petkov239f7e22009-04-23 08:30:29 +020097static int cdrom_log_sense(ide_drive_t *drive, struct request *rq)
Linus Torvalds1da177e2005-04-16 15:20:36 -070098{
Borislav Petkov239f7e22009-04-23 08:30:29 +020099 struct request_sense *sense = &drive->sense_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700100 int log = 0;
101
Jens Axboe4aff5e22006-08-10 08:44:47 +0200102 if (!sense || !rq || (rq->cmd_flags & REQ_QUIET))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103 return 0;
104
Borislav Petkov239f7e22009-04-23 08:30:29 +0200105 ide_debug_log(IDE_DBG_SENSE, "sense_key: 0x%x", sense->sense_key);
106
Linus Torvalds1da177e2005-04-16 15:20:36 -0700107 switch (sense->sense_key) {
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200108 case NO_SENSE:
109 case RECOVERED_ERROR:
110 break;
111 case NOT_READY:
112 /*
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200113 * don't care about tray state messages for e.g. capacity
114 * commands or in-progress or becoming ready
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200115 */
116 if (sense->asc == 0x3a || sense->asc == 0x04)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117 break;
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200118 log = 1;
119 break;
120 case ILLEGAL_REQUEST:
121 /*
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200122 * don't log START_STOP unit with LoEj set, since we cannot
123 * reliably check if drive can auto-close
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200124 */
125 if (rq->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126 break;
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200127 log = 1;
128 break;
129 case UNIT_ATTENTION:
130 /*
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200131 * Make good and sure we've seen this potential media change.
132 * Some drives (i.e. Creative) fail to present the correct sense
133 * key in the error register.
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200134 */
135 cdrom_saw_media_change(drive);
136 break;
137 default:
138 log = 1;
139 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700140 }
141 return log;
142}
143
Borislav Petkove5e076a2008-04-26 22:25:15 +0200144static void cdrom_analyze_sense_data(ide_drive_t *drive,
Borislav Petkov239f7e22009-04-23 08:30:29 +0200145 struct request *failed_command)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700146{
Borislav Petkov239f7e22009-04-23 08:30:29 +0200147 struct request_sense *sense = &drive->sense_data;
148 struct cdrom_info *info = drive->driver_data;
Alan Coxdbe217a2006-06-25 05:47:44 -0700149 unsigned long sector;
150 unsigned long bio_sectors;
Alan Coxdbe217a2006-06-25 05:47:44 -0700151
Borislav Petkov088b1b82009-01-02 13:34:47 +0100152 ide_debug_log(IDE_DBG_SENSE, "error_code: 0x%x, sense_key: 0x%x",
153 sense->error_code, sense->sense_key);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200154
155 if (failed_command)
Borislav Petkov088b1b82009-01-02 13:34:47 +0100156 ide_debug_log(IDE_DBG_SENSE, "failed cmd: 0x%x",
157 failed_command->cmd[0]);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200158
Borislav Petkov239f7e22009-04-23 08:30:29 +0200159 if (!cdrom_log_sense(drive, failed_command))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160 return;
161
162 /*
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200163 * If a read toc is executed for a CD-R or CD-RW medium where the first
164 * toc has not been recorded yet, it will fail with 05/24/00 (which is a
165 * confusing error)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700166 */
167 if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP)
168 if (sense->sense_key == 0x05 && sense->asc == 0x24)
169 return;
170
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200171 /* current error */
172 if (sense->error_code == 0x70) {
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200173 switch (sense->sense_key) {
Alan Coxdbe217a2006-06-25 05:47:44 -0700174 case MEDIUM_ERROR:
175 case VOLUME_OVERFLOW:
176 case ILLEGAL_REQUEST:
177 if (!sense->valid)
178 break;
179 if (failed_command == NULL ||
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200180 failed_command->cmd_type != REQ_TYPE_FS)
Alan Coxdbe217a2006-06-25 05:47:44 -0700181 break;
182 sector = (sense->information[0] << 24) |
183 (sense->information[1] << 16) |
184 (sense->information[2] << 8) |
185 (sense->information[3]);
186
Martin K. Petersene1defc42009-05-22 17:17:49 -0400187 if (queue_logical_block_size(drive->queue) == 2048)
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200188 /* device sector size is 2K */
189 sector <<= 2;
Roel Kluineee49292008-04-28 23:44:43 +0200190
191 bio_sectors = max(bio_sectors(failed_command->bio), 4U);
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200192 sector &= ~(bio_sectors - 1);
Alan Coxdbe217a2006-06-25 05:47:44 -0700193
Bartlomiej Zolnierkiewiczd3dd7102009-02-25 20:28:23 +0100194 /*
195 * The SCSI specification allows for the value
196 * returned by READ CAPACITY to be up to 75 2K
197 * sectors past the last readable block.
198 * Therefore, if we hit a medium error within the
199 * last 75 2K sectors, we decrease the saved size
200 * value.
201 */
Alan Coxdbe217a2006-06-25 05:47:44 -0700202 if (sector < get_capacity(info->disk) &&
Borislav Petkove5e076a2008-04-26 22:25:15 +0200203 drive->probed_capacity - sector < 4 * 75)
Alan Coxdbe217a2006-06-25 05:47:44 -0700204 set_capacity(info->disk, sector);
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200205 }
206 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700207
Bartlomiej Zolnierkiewicz972560f2008-02-01 23:09:23 +0100208 ide_cd_log_error(drive->name, failed_command, sense);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700209}
210
Bartlomiej Zolnierkiewicz299c4852009-03-31 20:15:01 +0200211static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq)
212{
213 /*
Tejun Heo1f181d22009-04-19 07:00:42 +0900214 * For REQ_TYPE_SENSE, "rq->special" points to the original
Tejun Heo02e7cf82009-04-19 07:00:42 +0900215 * failed request. Also, the sense data should be read
216 * directly from rq which might be different from the original
217 * sense buffer if it got copied during mapping.
Bartlomiej Zolnierkiewicz299c4852009-03-31 20:15:01 +0200218 */
Tejun Heo1f181d22009-04-19 07:00:42 +0900219 struct request *failed = (struct request *)rq->special;
Tejun Heo02e7cf82009-04-19 07:00:42 +0900220 void *sense = bio_data(rq->bio);
Bartlomiej Zolnierkiewicz299c4852009-03-31 20:15:01 +0200221
222 if (failed) {
223 if (failed->sense) {
Borislav Petkovc457ce82009-04-19 07:00:42 +0900224 /*
225 * Sense is always read into drive->sense_data.
226 * Copy back if the failed request has its
227 * sense pointer set.
228 */
229 memcpy(failed->sense, sense, 18);
Bartlomiej Zolnierkiewicz299c4852009-03-31 20:15:01 +0200230 failed->sense_len = rq->sense_len;
231 }
Borislav Petkov239f7e22009-04-23 08:30:29 +0200232 cdrom_analyze_sense_data(drive, failed);
Bartlomiej Zolnierkiewicz299c4852009-03-31 20:15:01 +0200233
234 if (ide_end_rq(drive, failed, -EIO, blk_rq_bytes(failed)))
235 BUG();
236 } else
Borislav Petkov239f7e22009-04-23 08:30:29 +0200237 cdrom_analyze_sense_data(drive, NULL);
Bartlomiej Zolnierkiewicz299c4852009-03-31 20:15:01 +0200238}
239
Borislav Petkov805ec582009-04-08 14:12:52 +0200240
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200241/*
Borislav Petkov805ec582009-04-08 14:12:52 +0200242 * Allow the drive 5 seconds to recover; some devices will return NOT_READY
243 * while flushing data from cache.
244 *
245 * returns: 0 failed (write timeout expired)
246 * 1 success
247 */
248static int ide_cd_breathe(ide_drive_t *drive, struct request *rq)
249{
250
251 struct cdrom_info *info = drive->driver_data;
252
253 if (!rq->errors)
254 info->write_timeout = jiffies + ATAPI_WAIT_WRITE_BUSY;
255
256 rq->errors = 1;
257
258 if (time_after(jiffies, info->write_timeout))
259 return 0;
260 else {
Borislav Petkov805ec582009-04-08 14:12:52 +0200261 /*
Jens Axboe0a41e902010-04-16 21:11:21 +0200262 * take a breather
Borislav Petkov805ec582009-04-08 14:12:52 +0200263 */
Jens Axboe0a41e902010-04-16 21:11:21 +0200264 blk_delay_queue(drive->queue, 1);
Borislav Petkov805ec582009-04-08 14:12:52 +0200265 return 1;
266 }
267}
268
269/**
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200270 * Returns:
271 * 0: if the request should be continued.
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200272 * 1: if the request will be going through error recovery.
273 * 2: if the request should be ended.
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200274 */
Borislav Petkov8e59bfd2009-04-08 14:12:51 +0200275static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700276{
Bartlomiej Zolnierkiewiczb73c7ee2008-07-23 19:55:52 +0200277 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewiczb65fac32009-01-06 17:20:50 +0100278 struct request *rq = hwif->rq;
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200279 int err, sense_key, do_end_request = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700280
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200281 /* get the IDE error register */
Bartlomiej Zolnierkiewicz64a57fe2008-02-06 02:57:51 +0100282 err = ide_read_error(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 sense_key = err >> 4;
284
Borislav Petkov98036ab2009-04-08 14:12:53 +0200285 ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, rq->cmd_type: 0x%x, err: 0x%x, "
286 "stat 0x%x",
287 rq->cmd[0], rq->cmd_type, err, stat);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200288
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200289 if (rq->cmd_type == REQ_TYPE_SENSE) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200290 /*
291 * We got an error trying to get sense info from the drive
292 * (probably while trying to recover from a former error).
293 * Just give up.
294 */
Jens Axboe4aff5e22006-08-10 08:44:47 +0200295 rq->cmd_flags |= REQ_FAILED;
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200296 return 2;
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200297 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200299 /* if we have an error, pass CHECK_CONDITION as the SCSI status byte */
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200300 if (rq->cmd_type == REQ_TYPE_BLOCK_PC && !rq->errors)
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200301 rq->errors = SAM_STAT_CHECK_CONDITION;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700302
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200303 if (blk_noretry_request(rq))
304 do_end_request = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700305
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200306 switch (sense_key) {
307 case NOT_READY:
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200308 if (rq->cmd_type == REQ_TYPE_FS && rq_data_dir(rq) == WRITE) {
Borislav Petkov3c8a48e2009-04-08 14:13:03 +0200309 if (ide_cd_breathe(drive, rq))
310 return 1;
311 } else {
Borislav Petkove5e076a2008-04-26 22:25:15 +0200312 cdrom_saw_media_change(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200314 if (rq->cmd_type == REQ_TYPE_FS &&
Christoph Hellwig4c4762d2010-06-19 17:26:47 +0200315 !(rq->cmd_flags & REQ_QUIET))
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200316 printk(KERN_ERR PFX "%s: tray open\n",
317 drive->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700318 }
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200319 do_end_request = 1;
320 break;
321 case UNIT_ATTENTION:
322 cdrom_saw_media_change(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700323
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200324 if (rq->cmd_type != REQ_TYPE_FS)
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200325 return 0;
326
327 /*
328 * Arrange to retry the request but be sure to give up if we've
329 * retried too many times.
330 */
331 if (++rq->errors > ERROR_MAX)
Bartlomiej Zolnierkiewicz1920c482009-04-08 14:12:54 +0200332 do_end_request = 1;
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200333 break;
334 case ILLEGAL_REQUEST:
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200335 /*
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200336 * Don't print error message for this condition -- SFF8090i
337 * indicates that 5/24/00 is the correct response to a request
338 * to close the tray if the drive doesn't have that capability.
339 *
340 * cdrom_log_sense() knows this!
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200341 */
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200342 if (rq->cmd[0] == GPCMD_START_STOP_UNIT)
343 break;
344 /* fall-through */
345 case DATA_PROTECT:
Bartlomiej Zolnierkiewiczbbb89e32008-02-01 23:09:28 +0100346 /*
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200347 * No point in retrying after an illegal request or data
348 * protect error.
Bartlomiej Zolnierkiewiczbbb89e32008-02-01 23:09:28 +0100349 */
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200350 if (!(rq->cmd_flags & REQ_QUIET))
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200351 ide_dump_status(drive, "command error", stat);
352 do_end_request = 1;
353 break;
354 case MEDIUM_ERROR:
355 /*
356 * No point in re-trying a zillion times on a bad sector.
357 * If we got here the error is not correctable.
358 */
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200359 if (!(rq->cmd_flags & REQ_QUIET))
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200360 ide_dump_status(drive, "media error "
361 "(bad sector)", stat);
362 do_end_request = 1;
363 break;
364 case BLANK_CHECK:
365 /* disk appears blank? */
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200366 if (!(rq->cmd_flags & REQ_QUIET))
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200367 ide_dump_status(drive, "media error (blank)",
368 stat);
369 do_end_request = 1;
370 break;
371 default:
Christoph Hellwig4c4762d2010-06-19 17:26:47 +0200372 if (rq->cmd_type != REQ_TYPE_FS)
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200373 break;
374 if (err & ~ATA_ABORTED) {
375 /* go to the default handler for other errors */
376 ide_error(drive, "cdrom_decode_status", stat);
377 return 1;
378 } else if (++rq->errors > ERROR_MAX)
379 /* we've racked up too many retries, abort */
380 do_end_request = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381 }
382
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200383 if (rq->cmd_type != REQ_TYPE_FS) {
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200384 rq->cmd_flags |= REQ_FAILED;
385 do_end_request = 1;
386 }
387
388 /*
389 * End a request through request sense analysis when we have sense data.
390 * We need this in order to perform end of media processing.
391 */
392 if (do_end_request)
393 goto end_request;
394
395 /* if we got a CHECK_CONDITION status, queue a request sense command */
396 if (stat & ATA_ERR)
Tejun Heo02e7cf82009-04-19 07:00:42 +0900397 return ide_queue_sense_rq(drive, NULL) ? 2 : 1;
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200398 return 1;
399
Bartlomiej Zolnierkiewiczbbb89e32008-02-01 23:09:28 +0100400end_request:
Bartlomiej Zolnierkiewicz3a7d2482008-10-10 22:39:21 +0200401 if (stat & ATA_ERR) {
Bartlomiej Zolnierkiewiczb65fac32009-01-06 17:20:50 +0100402 hwif->rq = NULL;
Tejun Heo02e7cf82009-04-19 07:00:42 +0900403 return ide_queue_sense_rq(drive, rq) ? 2 : 1;
Bartlomiej Zolnierkiewiczbbb89e32008-02-01 23:09:28 +0100404 } else
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200405 return 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406}
407
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200408static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct ide_cmd *cmd)
Bartlomiej Zolnierkiewicz8ee69f52008-02-01 23:09:25 +0100409{
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200410 struct request *rq = cmd->rq;
411
Borislav Petkov088b1b82009-01-02 13:34:47 +0100412 ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200413
Bartlomiej Zolnierkiewicz8ee69f52008-02-01 23:09:25 +0100414 /*
415 * Some of the trailing request sense fields are optional,
416 * and some drives don't send them. Sigh.
417 */
418 if (rq->cmd[0] == GPCMD_REQUEST_SENSE &&
Tejun Heo59a4f6f2009-04-19 07:00:41 +0900419 cmd->nleft > 0 && cmd->nleft <= 5)
420 cmd->nleft = 0;
Bartlomiej Zolnierkiewicz8ee69f52008-02-01 23:09:25 +0100421}
422
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200423int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd,
424 int write, void *buffer, unsigned *bufflen,
425 struct request_sense *sense, int timeout,
426 unsigned int cmd_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700427{
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200428 struct cdrom_info *info = drive->driver_data;
429 struct request_sense local_sense;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430 int retries = 10;
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200431 unsigned int flags = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700432
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200433 if (!sense)
434 sense = &local_sense;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435
Borislav Petkov088b1b82009-01-02 13:34:47 +0100436 ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, "
437 "cmd_flags: 0x%x",
438 cmd[0], write, timeout, cmd_flags);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200439
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200440 /* start of retry loop */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700441 do {
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200442 struct request *rq;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443 int error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200445 rq = blk_get_request(drive->queue, write, __GFP_WAIT);
446
447 memcpy(rq->cmd, cmd, BLK_MAX_CDB);
448 rq->cmd_type = REQ_TYPE_ATA_PC;
449 rq->sense = sense;
450 rq->cmd_flags |= cmd_flags;
451 rq->timeout = timeout;
452 if (buffer) {
Tejun Heo02e7cf82009-04-19 07:00:42 +0900453 error = blk_rq_map_kern(drive->queue, rq, buffer,
454 *bufflen, GFP_NOIO);
455 if (error) {
456 blk_put_request(rq);
457 return error;
458 }
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200459 }
460
461 error = blk_execute_rq(drive->queue, info->disk, rq, 0);
462
463 if (buffer)
Tejun Heoc3a4d782009-05-07 22:24:37 +0900464 *bufflen = rq->resid_len;
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200465
466 flags = rq->cmd_flags;
467 blk_put_request(rq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200469 /*
470 * FIXME: we should probably abort/retry or something in case of
471 * failure.
472 */
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200473 if (flags & REQ_FAILED) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200474 /*
475 * The request failed. Retry if it was due to a unit
476 * attention status (usually means media was changed).
477 */
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200478 struct request_sense *reqbuf = sense;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479
480 if (reqbuf->sense_key == UNIT_ATTENTION)
481 cdrom_saw_media_change(drive);
482 else if (reqbuf->sense_key == NOT_READY &&
483 reqbuf->asc == 4 && reqbuf->ascq != 4) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200484 /*
485 * The drive is in the process of loading
486 * a disk. Retry, but wait a little to give
487 * the drive time to complete the load.
488 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489 ssleep(2);
490 } else {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200491 /* otherwise, don't retry */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492 retries = 0;
493 }
494 --retries;
495 }
496
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200497 /* end of retry loop */
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200498 } while ((flags & REQ_FAILED) && retries >= 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700499
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200500 /* return an error if the command failed */
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200501 return (flags & REQ_FAILED) ? -EIO : 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700502}
503
Borislav Petkov11071282010-07-05 21:23:52 -0700504/*
505 * returns true if rq has been completed
506 */
507static bool ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd)
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200508{
509 unsigned int nr_bytes = cmd->nbytes - cmd->nleft;
510
511 if (cmd->tf_flags & IDE_TFLAG_WRITE)
512 nr_bytes -= cmd->last_xfer_len;
513
Borislav Petkov11071282010-07-05 21:23:52 -0700514 if (nr_bytes > 0) {
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200515 ide_complete_rq(drive, 0, nr_bytes);
Borislav Petkov11071282010-07-05 21:23:52 -0700516 return true;
517 }
518
519 return false;
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200520}
521
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
523{
Bartlomiej Zolnierkiewicz23579a22008-04-18 00:46:26 +0200524 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200525 struct ide_cmd *cmd = &hwif->cmd;
Bartlomiej Zolnierkiewiczb65fac32009-01-06 17:20:50 +0100526 struct request *rq = hwif->rq;
Bartlomiej Zolnierkiewicz0041e7c2008-02-01 23:09:28 +0100527 ide_expiry_t *expiry = NULL;
Borislav Petkov8e59bfd2009-04-08 14:12:51 +0200528 int dma_error = 0, dma, thislen, uptodate = 0;
Tejun Heo34b7d2c2009-05-07 22:24:43 +0900529 int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc = 0;
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200530 int sense = (rq->cmd_type == REQ_TYPE_SENSE);
Bartlomiej Zolnierkiewiczff1bfbc2008-02-01 23:09:25 +0100531 unsigned int timeout;
Bartlomiej Zolnierkiewicz18236492008-07-23 19:55:54 +0200532 u16 len;
Borislav Petkov8e59bfd2009-04-08 14:12:51 +0200533 u8 ireason, stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700534
Borislav Petkov98036ab2009-04-08 14:12:53 +0200535 ide_debug_log(IDE_DBG_PC, "cmd: 0x%x, write: 0x%x", rq->cmd[0], write);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200536
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200537 /* check for errors */
Borislav Petkov12469ac2008-10-13 21:39:49 +0200538 dma = drive->dma;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539 if (dma) {
Borislav Petkov12469ac2008-10-13 21:39:49 +0200540 drive->dma = 0;
Bartlomiej Zolnierkiewicz88b41322009-03-31 20:15:22 +0200541 drive->waiting_for_dma = 0;
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200542 dma_error = hwif->dma_ops->dma_end(drive);
Bartlomiej Zolnierkiewiczf094d4d2009-03-31 20:15:24 +0200543 ide_dma_unmap_sg(drive, cmd);
Bartlomiej Zolnierkiewiczeba15fb2008-02-01 23:09:17 +0100544 if (dma_error) {
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200545 printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name,
Bartlomiej Zolnierkiewiczff1bfbc2008-02-01 23:09:25 +0100546 write ? "write" : "read");
Bartlomiej Zolnierkiewiczeba15fb2008-02-01 23:09:17 +0100547 ide_dma_off(drive);
548 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700549 }
550
Borislav Petkov8e59bfd2009-04-08 14:12:51 +0200551 /* check status */
552 stat = hwif->tp_ops->read_status(hwif);
553
554 if (!OK_STAT(stat, 0, BAD_R_STAT)) {
555 rc = cdrom_decode_status(drive, stat);
556 if (rc) {
557 if (rc == 2)
558 goto out_end;
559 return ide_stopped;
560 }
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200561 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700562
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200563 /* using dma, transfer is complete now */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700564 if (dma) {
Bartlomiej Zolnierkiewiczeba15fb2008-02-01 23:09:17 +0100565 if (dma_error)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566 return ide_error(drive, "dma error", stat);
Bartlomiej Zolnierkiewicz4a3d8cf2009-03-31 20:15:15 +0200567 uptodate = 1;
Bartlomiej Zolnierkiewicz984c5e52009-03-31 20:15:03 +0200568 goto out_end;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700569 }
570
Bartlomiej Zolnierkiewicz18236492008-07-23 19:55:54 +0200571 ide_read_bcount_and_ireason(drive, &len, &ireason);
Bartlomiej Zolnierkiewicz0041e7c2008-02-01 23:09:28 +0100572
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200573 thislen = (rq->cmd_type == REQ_TYPE_FS) ? len : cmd->nleft;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574 if (thislen > len)
575 thislen = len;
576
Borislav Petkov088b1b82009-01-02 13:34:47 +0100577 ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d",
578 stat, thislen);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200579
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200580 /* If DRQ is clear, the command has completed. */
Bartlomiej Zolnierkiewicz3a7d2482008-10-10 22:39:21 +0200581 if ((stat & ATA_DRQ) == 0) {
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200582 if (rq->cmd_type == REQ_TYPE_FS) {
Bartlomiej Zolnierkiewicz0041e7c2008-02-01 23:09:28 +0100583 /*
584 * If we're not done reading/writing, complain.
585 * Otherwise, complete the command normally.
586 */
587 uptodate = 1;
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200588 if (cmd->nleft > 0) {
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200589 printk(KERN_ERR PFX "%s: %s: data underrun "
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200590 "(%u bytes)\n", drive->name, __func__,
591 cmd->nleft);
Bartlomiej Zolnierkiewicz0041e7c2008-02-01 23:09:28 +0100592 if (!write)
593 rq->cmd_flags |= REQ_FAILED;
594 uptodate = 0;
595 }
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200596 } else if (rq->cmd_type != REQ_TYPE_BLOCK_PC) {
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200597 ide_cd_request_sense_fixup(drive, cmd);
Borislav Petkov9c72ebe2009-06-26 11:22:37 -0700598
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200599 uptodate = cmd->nleft ? 0 : 1;
Borislav Petkov9c72ebe2009-06-26 11:22:37 -0700600
601 /*
602 * suck out the remaining bytes from the drive in an
603 * attempt to complete the data xfer. (see BZ#13399)
604 */
605 if (!(stat & ATA_ERR) && !uptodate && thislen) {
606 ide_pio_bytes(drive, cmd, write, thislen);
607 uptodate = cmd->nleft ? 0 : 1;
608 }
609
610 if (!uptodate)
Bartlomiej Zolnierkiewicz984c5e52009-03-31 20:15:03 +0200611 rq->cmd_flags |= REQ_FAILED;
Bartlomiej Zolnierkiewiczff1bfbc2008-02-01 23:09:25 +0100612 }
Bartlomiej Zolnierkiewicz984c5e52009-03-31 20:15:03 +0200613 goto out_end;
Kiyoshi Uedaaaa04c22007-12-11 17:51:23 -0500614 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700615
Borislav Petkov103f7032009-04-26 10:39:07 +0200616 rc = ide_check_ireason(drive, rq, len, ireason, write);
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200617 if (rc)
618 goto out_end;
Bartlomiej Zolnierkiewicz0041e7c2008-02-01 23:09:28 +0100619
Bartlomiej Zolnierkiewicz06a449e2009-03-31 20:15:13 +0200620 cmd->last_xfer_len = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700621
Borislav Petkov088b1b82009-01-02 13:34:47 +0100622 ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, "
623 "ireason: 0x%x",
624 rq->cmd_type, ireason);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200625
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200626 /* transfer data */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627 while (thislen > 0) {
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200628 int blen = min_t(int, thislen, cmd->nleft);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700629
Bartlomiej Zolnierkiewicz14fa91c2009-03-31 20:15:16 +0200630 if (cmd->nleft == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200633 ide_pio_bytes(drive, cmd, write, blen);
634 cmd->last_xfer_len += blen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635
636 thislen -= blen;
637 len -= blen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200639 if (sense && write == 0)
Andreas Schwabbcd88ac2008-02-26 21:50:35 +0100640 rq->sense_len += blen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641 }
642
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200643 /* pad, if necessary */
Bartlomiej Zolnierkiewicz14fa91c2009-03-31 20:15:16 +0200644 if (len > 0) {
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200645 if (rq->cmd_type != REQ_TYPE_FS || write == 0)
Bartlomiej Zolnierkiewicz14fa91c2009-03-31 20:15:16 +0200646 ide_pad_transfer(drive, write, len);
647 else {
648 printk(KERN_ERR PFX "%s: confused, missing data\n",
649 drive->name);
650 blk_dump_rq_flags(rq, "cdrom_newpc_intr");
651 }
652 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700653
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200654 if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {
Bartlomiej Zolnierkiewiczff1bfbc2008-02-01 23:09:25 +0100655 timeout = rq->timeout;
Bartlomiej Zolnierkiewiczff1bfbc2008-02-01 23:09:25 +0100656 } else {
657 timeout = ATAPI_WAIT_PC;
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200658 if (rq->cmd_type != REQ_TYPE_FS)
Borislav Petkov4cad0852009-01-02 16:12:53 +0100659 expiry = ide_cd_expiry;
Bartlomiej Zolnierkiewiczff1bfbc2008-02-01 23:09:25 +0100660 }
661
Bartlomiej Zolnierkiewicz60c0cd02009-03-27 12:46:46 +0100662 hwif->expiry = expiry;
663 ide_set_handler(drive, cdrom_newpc_intr, timeout);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700664 return ide_started;
Bartlomiej Zolnierkiewiczff1bfbc2008-02-01 23:09:25 +0100665
Bartlomiej Zolnierkiewicz984c5e52009-03-31 20:15:03 +0200666out_end:
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200667 if (rq->cmd_type == REQ_TYPE_BLOCK_PC && rc == 0) {
Tejun Heo5f49f632009-05-19 18:33:05 +0900668 rq->resid_len = 0;
Tejun Heo34b7d2c2009-05-07 22:24:43 +0900669 blk_end_request_all(rq, 0);
Bartlomiej Zolnierkiewiczb65fac32009-01-06 17:20:50 +0100670 hwif->rq = NULL;
Bartlomiej Zolnierkiewiczff1bfbc2008-02-01 23:09:25 +0100671 } else {
Bartlomiej Zolnierkiewiczf63174e2009-03-31 20:15:04 +0200672 if (sense && uptodate)
673 ide_cd_complete_failed_rq(drive, rq);
674
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200675 if (rq->cmd_type == REQ_TYPE_FS) {
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200676 if (cmd->nleft == 0)
Bartlomiej Zolnierkiewiczf63174e2009-03-31 20:15:04 +0200677 uptodate = 1;
678 } else {
679 if (uptodate <= 0 && rq->errors == 0)
680 rq->errors = -EIO;
681 }
682
Rainer Weikusat39c58f32009-06-18 17:04:00 +0200683 if (uptodate == 0 && rq->bio)
Borislav Petkov11071282010-07-05 21:23:52 -0700684 if (ide_cd_error_cmd(drive, cmd))
685 return ide_stopped;
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200686
Bartlomiej Zolnierkiewiczf63174e2009-03-31 20:15:04 +0200687 /* make sure it's fully ended */
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200688 if (rq->cmd_type != REQ_TYPE_FS) {
Tejun Heo5f49f632009-05-19 18:33:05 +0900689 rq->resid_len -= cmd->nbytes - cmd->nleft;
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200690 if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE))
Tejun Heoc3a4d782009-05-07 22:24:37 +0900691 rq->resid_len += cmd->last_xfer_len;
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200692 }
693
Tejun Heo34b7d2c2009-05-07 22:24:43 +0900694 ide_complete_rq(drive, uptodate ? 0 : -EIO, blk_rq_bytes(rq));
Bartlomiej Zolnierkiewiczf63174e2009-03-31 20:15:04 +0200695
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200696 if (sense && rc == 2)
697 ide_error(drive, "request sense failure", stat);
Bartlomiej Zolnierkiewiczff1bfbc2008-02-01 23:09:25 +0100698 }
699 return ide_stopped;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700700}
701
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100702static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700703{
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100704 struct cdrom_info *cd = drive->driver_data;
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200705 struct request_queue *q = drive->queue;
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100706 int write = rq_data_dir(rq) == WRITE;
707 unsigned short sectors_per_frame =
Martin K. Petersene1defc42009-05-22 17:17:49 -0400708 queue_logical_block_size(q) >> SECTOR_BITS;
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100709
Bartlomiej Zolnierkiewicz8652b312009-03-31 20:15:14 +0200710 ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, "
Borislav Petkov088b1b82009-01-02 13:34:47 +0100711 "secs_per_frame: %u",
Bartlomiej Zolnierkiewicz8652b312009-03-31 20:15:14 +0200712 rq->cmd[0], rq->cmd_flags, sectors_per_frame);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200713
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100714 if (write) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200715 /* disk has become write protected */
Bartlomiej Zolnierkiewicze0458cc2009-03-31 20:15:02 +0200716 if (get_disk_ro(cd->disk))
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100717 return ide_stopped;
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100718 } else {
719 /*
720 * We may be retrying this request after an error. Fix up any
721 * weirdness which might be present in the request packet.
722 */
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200723 q->prep_rq_fn(q, rq);
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100724 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200726 /* fs requests *must* be hardware frame aligned */
Tejun Heo9780e2d2009-05-07 22:24:40 +0900727 if ((blk_rq_sectors(rq) & (sectors_per_frame - 1)) ||
728 (blk_rq_pos(rq) & (sectors_per_frame - 1)))
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200729 return ide_stopped;
730
731 /* use DMA, if possible */
732 drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700733
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100734 if (write)
735 cd->devinfo.media_written = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736
Bartlomiej Zolnierkiewicz8652b312009-03-31 20:15:14 +0200737 rq->timeout = ATAPI_WAIT_PC;
738
Borislav Petkovb6ca4402008-07-16 20:33:46 +0200739 return ide_started;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740}
741
Borislav Petkovb6ca4402008-07-16 20:33:46 +0200742static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744
Borislav Petkov088b1b82009-01-02 13:34:47 +0100745 ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x",
746 rq->cmd[0], rq->cmd_type);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200747
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200748 if (rq->cmd_type == REQ_TYPE_BLOCK_PC)
Bartlomiej Zolnierkiewiczc9f56a82008-02-01 23:09:26 +0100749 rq->cmd_flags |= REQ_QUIET;
750 else
751 rq->cmd_flags &= ~REQ_FAILED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700752
Borislav Petkov12469ac2008-10-13 21:39:49 +0200753 drive->dma = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700754
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200755 /* sg request */
Tejun Heo02e7cf82009-04-19 07:00:42 +0900756 if (rq->bio) {
FUJITA Tomonorie5318b52008-07-16 20:33:35 +0200757 struct request_queue *q = drive->queue;
Tejun Heo02e7cf82009-04-19 07:00:42 +0900758 char *buf = bio_data(rq->bio);
FUJITA Tomonorie5318b52008-07-16 20:33:35 +0200759 unsigned int alignment;
FUJITA Tomonorie5318b52008-07-16 20:33:35 +0200760
Borislav Petkov12469ac2008-10-13 21:39:49 +0200761 drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762
763 /*
764 * check if dma is safe
Linus Torvalds5d9e4ea2005-05-27 07:36:17 -0700765 *
766 * NOTE! The "len" and "addr" checks should possibly have
767 * separate masks.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700768 */
FUJITA Tomonorie5318b52008-07-16 20:33:35 +0200769 alignment = queue_dma_alignment(q) | q->dma_pad_mask;
Borislav Petkov9bd27cb2008-11-02 21:40:07 +0100770 if ((unsigned long)buf & alignment
Tejun Heo34b7d2c2009-05-07 22:24:43 +0900771 || blk_rq_bytes(rq) & q->dma_pad_mask
FUJITA Tomonoriefa402d2008-10-10 22:39:22 +0200772 || object_is_on_stack(buf))
Borislav Petkov12469ac2008-10-13 21:39:49 +0200773 drive->dma = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700775}
776
Borislav Petkov99384ae2008-07-16 20:33:45 +0200777static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
Borislav Petkove5e076a2008-04-26 22:25:15 +0200778 sector_t block)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779{
Bartlomiej Zolnierkiewiczb788ee92009-03-27 12:46:46 +0100780 struct ide_cmd cmd;
Connor Hansen3307d0d2011-06-11 15:06:48 -0700781 int uptodate = 0;
782 unsigned int nsectors;
Bartlomiej Zolnierkiewiczb788ee92009-03-27 12:46:46 +0100783
Borislav Petkov088b1b82009-01-02 13:34:47 +0100784 ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu",
785 rq->cmd[0], (unsigned long long)block);
786
787 if (drive->debug_mask & IDE_DBG_RQ)
788 blk_dump_rq_flags(rq, "ide_cd_do_request");
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200789
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200790 switch (rq->cmd_type) {
791 case REQ_TYPE_FS:
Bartlomiej Zolnierkiewicz8652b312009-03-31 20:15:14 +0200792 if (cdrom_start_rw(drive, rq) == ide_stopped)
Bartlomiej Zolnierkiewicze0458cc2009-03-31 20:15:02 +0200793 goto out_end;
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200794 break;
795 case REQ_TYPE_SENSE:
796 case REQ_TYPE_BLOCK_PC:
797 case REQ_TYPE_ATA_PC:
Borislav Petkov7fcebda2008-07-16 20:33:46 +0200798 if (!rq->timeout)
799 rq->timeout = ATAPI_WAIT_PC;
800
Borislav Petkovb6ca4402008-07-16 20:33:46 +0200801 cdrom_do_block_pc(drive, rq);
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200802 break;
803 case REQ_TYPE_SPECIAL:
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200804 /* right now this can only be a reset... */
Bartlomiej Zolnierkiewicze0458cc2009-03-31 20:15:02 +0200805 uptodate = 1;
806 goto out_end;
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200807 default:
Bartlomiej Zolnierkiewicz2c7eaa42009-06-15 22:16:10 +0200808 BUG();
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200809 }
Borislav Petkovb6ca4402008-07-16 20:33:46 +0200810
Borislav Petkovc457ce82009-04-19 07:00:42 +0900811 /* prepare sense request for this command */
812 ide_prep_sense(drive, rq);
813
Bartlomiej Zolnierkiewiczb788ee92009-03-27 12:46:46 +0100814 memset(&cmd, 0, sizeof(cmd));
815
816 if (rq_data_dir(rq))
817 cmd.tf_flags |= IDE_TFLAG_WRITE;
818
819 cmd.rq = rq;
820
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200821 if (rq->cmd_type == REQ_TYPE_FS || blk_rq_bytes(rq)) {
Tejun Heo34b7d2c2009-05-07 22:24:43 +0900822 ide_init_sg_cmd(&cmd, blk_rq_bytes(rq));
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200823 ide_map_sg(drive, &cmd);
824 }
825
Bartlomiej Zolnierkiewiczb788ee92009-03-27 12:46:46 +0100826 return ide_issue_pc(drive, &cmd);
Bartlomiej Zolnierkiewicze0458cc2009-03-31 20:15:02 +0200827out_end:
Tejun Heo5b936292009-05-07 22:24:38 +0900828 nsectors = blk_rq_sectors(rq);
Bartlomiej Zolnierkiewiczf63174e2009-03-31 20:15:04 +0200829
830 if (nsectors == 0)
831 nsectors = 1;
832
833 ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9);
834
Bartlomiej Zolnierkiewicze0458cc2009-03-31 20:15:02 +0200835 return ide_stopped;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700836}
837
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200838/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839 * Ioctl handling.
840 *
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200841 * Routines which queue packet commands take as a final argument a pointer to a
842 * request_sense struct. If execution of the command results in an error with a
843 * CHECK CONDITION status, this structure will be filled with the results of the
844 * subsequent request sense command. The pointer can also be NULL, in which case
845 * no sense information is returned.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700846 */
Borislav Petkove5e076a2008-04-26 22:25:15 +0200847static void msf_from_bcd(struct atapi_msf *msf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848{
Adrian Bunkfc99856a2008-08-18 21:40:04 +0200849 msf->minute = bcd2bin(msf->minute);
850 msf->second = bcd2bin(msf->second);
851 msf->frame = bcd2bin(msf->frame);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700852}
853
Borislav Petkovf9afd182008-02-01 23:09:29 +0100854int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700856 struct cdrom_info *info = drive->driver_data;
857 struct cdrom_device_info *cdi = &info->devinfo;
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200858 unsigned char cmd[BLK_MAX_CDB];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700859
Borislav Petkov088b1b82009-01-02 13:34:47 +0100860 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200861
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200862 memset(cmd, 0, BLK_MAX_CDB);
863 cmd[0] = GPCMD_TEST_UNIT_READY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +0100865 /*
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200866 * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs
867 * instead of supporting the LOAD_UNLOAD opcode.
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +0100868 */
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200869 cmd[7] = cdi->sanyo_slot % 3;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700870
Harvey Harrison141d3b22008-07-23 19:56:02 +0200871 return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700872}
873
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
875 unsigned long *sectors_per_frame,
876 struct request_sense *sense)
877{
878 struct {
Harvey Harrison141d3b22008-07-23 19:56:02 +0200879 __be32 lba;
880 __be32 blocklen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700881 } capbuf;
882
883 int stat;
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200884 unsigned char cmd[BLK_MAX_CDB];
885 unsigned len = sizeof(capbuf);
Petr Tesarik938bb032008-08-05 18:17:02 +0200886 u32 blocklen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700887
Borislav Petkov088b1b82009-01-02 13:34:47 +0100888 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200889
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200890 memset(cmd, 0, BLK_MAX_CDB);
891 cmd[0] = GPCMD_READ_CDVD_CAPACITY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700892
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200893 stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0,
894 REQ_QUIET);
Jens Axboee8e7b9e2008-07-24 22:53:35 +0200895 if (stat)
896 return stat;
897
898 /*
David S. Milleraf054ed2009-06-23 16:01:06 -0700899 * Sanity check the given block size, in so far as making
900 * sure the sectors_per_frame we give to the caller won't
901 * end up being bogus.
Jens Axboee8e7b9e2008-07-24 22:53:35 +0200902 */
Petr Tesarik938bb032008-08-05 18:17:02 +0200903 blocklen = be32_to_cpu(capbuf.blocklen);
David S. Milleraf054ed2009-06-23 16:01:06 -0700904 blocklen = (blocklen >> SECTOR_BITS) << SECTOR_BITS;
Petr Tesarik938bb032008-08-05 18:17:02 +0200905 switch (blocklen) {
906 case 512:
907 case 1024:
908 case 2048:
909 case 4096:
Jens Axboee8e7b9e2008-07-24 22:53:35 +0200910 break;
911 default:
Frans Popd9ae6242009-06-23 16:02:58 -0700912 printk_once(KERN_ERR PFX "%s: weird block size %u; "
913 "setting default block size to 2048\n",
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200914 drive->name, blocklen);
Petr Tesarik938bb032008-08-05 18:17:02 +0200915 blocklen = 2048;
Jens Axboee8e7b9e2008-07-24 22:53:35 +0200916 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917 }
918
Jens Axboee8e7b9e2008-07-24 22:53:35 +0200919 *capacity = 1 + be32_to_cpu(capbuf.lba);
Petr Tesarik938bb032008-08-05 18:17:02 +0200920 *sectors_per_frame = blocklen >> SECTOR_BITS;
Borislav Petkov71b429ca2008-10-17 18:09:14 +0200921
Borislav Petkov088b1b82009-01-02 13:34:47 +0100922 ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu",
923 *capacity, *sectors_per_frame);
Borislav Petkov71b429ca2008-10-17 18:09:14 +0200924
Jens Axboee8e7b9e2008-07-24 22:53:35 +0200925 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700926}
927
928static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag,
929 int format, char *buf, int buflen,
930 struct request_sense *sense)
931{
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200932 unsigned char cmd[BLK_MAX_CDB];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933
Borislav Petkov088b1b82009-01-02 13:34:47 +0100934 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200935
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200936 memset(cmd, 0, BLK_MAX_CDB);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700937
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200938 cmd[0] = GPCMD_READ_TOC_PMA_ATIP;
939 cmd[6] = trackno;
940 cmd[7] = (buflen >> 8);
941 cmd[8] = (buflen & 0xff);
942 cmd[9] = (format << 6);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943
944 if (msf_flag)
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200945 cmd[1] = 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200947 return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948}
949
Linus Torvalds1da177e2005-04-16 15:20:36 -0700950/* Try to read the entire TOC for the disk into our internal buffer. */
Bartlomiej Zolnierkiewicz17802992008-02-01 23:09:25 +0100951int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700952{
953 int stat, ntracks, i;
954 struct cdrom_info *info = drive->driver_data;
955 struct cdrom_device_info *cdi = &info->devinfo;
956 struct atapi_toc *toc = info->toc;
957 struct {
958 struct atapi_toc_header hdr;
959 struct atapi_toc_entry ent;
960 } ms_tmp;
961 long last_written;
962 unsigned long sectors_per_frame = SECTORS_PER_FRAME;
963
Borislav Petkov088b1b82009-01-02 13:34:47 +0100964 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200965
Linus Torvalds1da177e2005-04-16 15:20:36 -0700966 if (toc == NULL) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200967 /* try to allocate space */
Jesper Juhl2a91f3e2005-10-30 15:02:45 -0800968 toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700969 if (toc == NULL) {
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200970 printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n",
Borislav Petkov83c85652008-04-26 22:25:15 +0200971 drive->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700972 return -ENOMEM;
973 }
Jesper Juhl2a91f3e2005-10-30 15:02:45 -0800974 info->toc = toc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700975 }
976
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200977 /*
978 * Check to see if the existing data is still valid. If it is,
979 * just return.
980 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700981 (void) cdrom_check_status(drive, sense);
982
Borislav Petkov570f89e2008-07-23 19:56:02 +0200983 if (drive->atapi_flags & IDE_AFLAG_TOC_VALID)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984 return 0;
985
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200986 /* try to get the total cdrom capacity and sector size */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700987 stat = cdrom_read_capacity(drive, &toc->capacity, &sectors_per_frame,
988 sense);
989 if (stat)
990 toc->capacity = 0x1fffff;
991
992 set_capacity(info->disk, toc->capacity * sectors_per_frame);
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200993 /* save a private copy of the TOC capacity for error handling */
Alan Coxdbe217a2006-06-25 05:47:44 -0700994 drive->probed_capacity = toc->capacity * sectors_per_frame;
995
Martin K. Petersene1defc42009-05-22 17:17:49 -0400996 blk_queue_logical_block_size(drive->queue,
997 sectors_per_frame << SECTOR_BITS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700998
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200999 /* first read just the header, so we know how long the TOC is */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001000 stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr,
1001 sizeof(struct atapi_toc_header), sense);
Jesper Juhl2a91f3e2005-10-30 15:02:45 -08001002 if (stat)
1003 return stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001004
Borislav Petkov570f89e2008-07-23 19:56:02 +02001005 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
Adrian Bunkfc99856a2008-08-18 21:40:04 +02001006 toc->hdr.first_track = bcd2bin(toc->hdr.first_track);
1007 toc->hdr.last_track = bcd2bin(toc->hdr.last_track);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001009
1010 ntracks = toc->hdr.last_track - toc->hdr.first_track + 1;
1011 if (ntracks <= 0)
1012 return -EIO;
1013 if (ntracks > MAX_TRACKS)
1014 ntracks = MAX_TRACKS;
1015
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001016 /* now read the whole schmeer */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001017 stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0,
1018 (char *)&toc->hdr,
1019 sizeof(struct atapi_toc_header) +
1020 (ntracks + 1) *
1021 sizeof(struct atapi_toc_entry), sense);
1022
1023 if (stat && toc->hdr.first_track > 1) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001024 /*
1025 * Cds with CDI tracks only don't have any TOC entries, despite
1026 * of this the returned values are
1027 * first_track == last_track = number of CDI tracks + 1,
1028 * so that this case is indistinguishable from the same layout
1029 * plus an additional audio track. If we get an error for the
1030 * regular case, we assume a CDI without additional audio
1031 * tracks. In this case the readable TOC is empty (CDI tracks
1032 * are not included) and only holds the Leadout entry.
1033 *
1034 * Heiko Eißfeldt.
1035 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001036 ntracks = 0;
1037 stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0,
1038 (char *)&toc->hdr,
1039 sizeof(struct atapi_toc_header) +
1040 (ntracks + 1) *
1041 sizeof(struct atapi_toc_entry),
1042 sense);
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +01001043 if (stat)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001044 return stat;
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +01001045
Borislav Petkov570f89e2008-07-23 19:56:02 +02001046 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
Adrian Bunkfc99856a2008-08-18 21:40:04 +02001047 toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT);
1048 toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT);
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +01001049 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001050 toc->hdr.first_track = CDROM_LEADOUT;
1051 toc->hdr.last_track = CDROM_LEADOUT;
1052 }
1053 }
1054
1055 if (stat)
1056 return stat;
1057
Borislav Petkov7eb43fd2008-02-11 00:32:13 +01001058 toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001059
Borislav Petkov570f89e2008-07-23 19:56:02 +02001060 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
Adrian Bunkfc99856a2008-08-18 21:40:04 +02001061 toc->hdr.first_track = bcd2bin(toc->hdr.first_track);
1062 toc->hdr.last_track = bcd2bin(toc->hdr.last_track);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001064
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +01001065 for (i = 0; i <= ntracks; i++) {
Borislav Petkov570f89e2008-07-23 19:56:02 +02001066 if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {
1067 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD)
Adrian Bunkfc99856a2008-08-18 21:40:04 +02001068 toc->ent[i].track = bcd2bin(toc->ent[i].track);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001069 msf_from_bcd(&toc->ent[i].addr.msf);
1070 }
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001071 toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute,
1072 toc->ent[i].addr.msf.second,
1073 toc->ent[i].addr.msf.frame);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001074 }
1075
Linus Torvalds1da177e2005-04-16 15:20:36 -07001076 if (toc->hdr.first_track != CDROM_LEADOUT) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001077 /* read the multisession information */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001078 stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp,
1079 sizeof(ms_tmp), sense);
Jesper Juhl2a91f3e2005-10-30 15:02:45 -08001080 if (stat)
1081 return stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001082
1083 toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba);
1084 } else {
Borislav Petkove5e076a2008-04-26 22:25:15 +02001085 ms_tmp.hdr.last_track = CDROM_LEADOUT;
1086 ms_tmp.hdr.first_track = ms_tmp.hdr.last_track;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001087 toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */
1088 }
1089
Borislav Petkov570f89e2008-07-23 19:56:02 +02001090 if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001091 /* re-read multisession information using MSF format */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001092 stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp,
1093 sizeof(ms_tmp), sense);
1094 if (stat)
1095 return stat;
1096
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001097 msf_from_bcd(&ms_tmp.ent.addr.msf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001098 toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute,
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001099 ms_tmp.ent.addr.msf.second,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001100 ms_tmp.ent.addr.msf.frame);
1101 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001102
1103 toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track);
1104
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001105 /* now try to get the total cdrom capacity */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001106 stat = cdrom_get_last_written(cdi, &last_written);
1107 if (!stat && (last_written > toc->capacity)) {
1108 toc->capacity = last_written;
1109 set_capacity(info->disk, toc->capacity * sectors_per_frame);
Alan Coxdbe217a2006-06-25 05:47:44 -07001110 drive->probed_capacity = toc->capacity * sectors_per_frame;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001111 }
1112
1113 /* Remember that we've read this stuff. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001114 drive->atapi_flags |= IDE_AFLAG_TOC_VALID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001115
1116 return 0;
1117}
1118
Bartlomiej Zolnierkiewicz17802992008-02-01 23:09:25 +01001119int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf)
Eric Piel9235e682005-06-23 00:10:29 -07001120{
1121 struct cdrom_info *info = drive->driver_data;
1122 struct cdrom_device_info *cdi = &info->devinfo;
1123 struct packet_command cgc;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001124 int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE;
Eric Piel9235e682005-06-23 00:10:29 -07001125
Borislav Petkov088b1b82009-01-02 13:34:47 +01001126 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001127
Borislav Petkov570f89e2008-07-23 19:56:02 +02001128 if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0)
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001129 size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE;
Eric Piel9235e682005-06-23 00:10:29 -07001130
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001131 init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN);
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001132 do {
1133 /* we seem to get stat=0x01,err=0x00 the first time (??) */
Eric Piel9235e682005-06-23 00:10:29 -07001134 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0);
1135 if (!stat)
1136 break;
1137 } while (--attempts);
1138 return stat;
1139}
1140
Bartlomiej Zolnierkiewicz17802992008-02-01 23:09:25 +01001141void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf)
Eric Piel9235e682005-06-23 00:10:29 -07001142{
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001143 struct cdrom_info *cd = drive->driver_data;
Bartlomiej Zolnierkiewicz481c8c62008-02-01 23:09:20 +01001144 u16 curspeed, maxspeed;
1145
Borislav Petkov088b1b82009-01-02 13:34:47 +01001146 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001147
Borislav Petkov570f89e2008-07-23 19:56:02 +02001148 if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) {
Harvey Harrison141d3b22008-07-23 19:56:02 +02001149 curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]);
1150 maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]);
Eric Piel9235e682005-06-23 00:10:29 -07001151 } else {
Harvey Harrison141d3b22008-07-23 19:56:02 +02001152 curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]);
1153 maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]);
Eric Piel9235e682005-06-23 00:10:29 -07001154 }
Bartlomiej Zolnierkiewicz481c8c62008-02-01 23:09:20 +01001155
Borislav Petkov088b1b82009-01-02 13:34:47 +01001156 ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u",
1157 curspeed, maxspeed);
Borislav Petkov71b429ca2008-10-17 18:09:14 +02001158
Julia Lawall72db37b2009-08-02 13:19:05 -07001159 cd->current_speed = DIV_ROUND_CLOSEST(curspeed, 176);
1160 cd->max_speed = DIV_ROUND_CLOSEST(maxspeed, 176);
Eric Piel9235e682005-06-23 00:10:29 -07001161}
1162
Bartlomiej Zolnierkiewicz20e7f7e2008-02-01 23:09:20 +01001163#define IDE_CD_CAPABILITIES \
1164 (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \
1165 CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \
1166 CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \
1167 CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \
1168 CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169
Linus Torvalds1da177e2005-04-16 15:20:36 -07001170static struct cdrom_device_ops ide_cdrom_dops = {
1171 .open = ide_cdrom_open_real,
1172 .release = ide_cdrom_release_real,
1173 .drive_status = ide_cdrom_drive_status,
Tejun Heo5b03a1b2011-03-09 19:54:27 +01001174 .check_events = ide_cdrom_check_events_real,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001175 .tray_move = ide_cdrom_tray_move,
1176 .lock_door = ide_cdrom_lock_door,
1177 .select_speed = ide_cdrom_select_speed,
1178 .get_last_session = ide_cdrom_get_last_session,
1179 .get_mcn = ide_cdrom_get_mcn,
1180 .reset = ide_cdrom_reset,
1181 .audio_ioctl = ide_cdrom_audio_ioctl,
Bartlomiej Zolnierkiewicz20e7f7e2008-02-01 23:09:20 +01001182 .capability = IDE_CD_CAPABILITIES,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001183 .generic_packet = ide_cdrom_packet,
1184};
1185
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001186static int ide_cdrom_register(ide_drive_t *drive, int nslots)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001187{
1188 struct cdrom_info *info = drive->driver_data;
1189 struct cdrom_device_info *devinfo = &info->devinfo;
1190
Borislav Petkov088b1b82009-01-02 13:34:47 +01001191 ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots);
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001192
Linus Torvalds1da177e2005-04-16 15:20:36 -07001193 devinfo->ops = &ide_cdrom_dops;
Bartlomiej Zolnierkiewicz2bc4cf22008-02-01 23:09:22 +01001194 devinfo->speed = info->current_speed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001195 devinfo->capacity = nslots;
Jesper Juhl2a91f3e2005-10-30 15:02:45 -08001196 devinfo->handle = drive;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197 strcpy(devinfo->name, drive->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001198
Borislav Petkov570f89e2008-07-23 19:56:02 +02001199 if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT)
Bartlomiej Zolnierkiewicz3cbd8142007-12-24 15:23:43 +01001200 devinfo->mask |= CDC_SELECT_SPEED;
1201
Linus Torvalds1da177e2005-04-16 15:20:36 -07001202 devinfo->disk = info->disk;
1203 return register_cdrom(devinfo);
1204}
1205
Borislav Petkove5e076a2008-04-26 22:25:15 +02001206static int ide_cdrom_probe_capabilities(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001207{
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001208 struct cdrom_info *cd = drive->driver_data;
1209 struct cdrom_device_info *cdi = &cd->devinfo;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001210 u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE];
1211 mechtype_t mechtype;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001212 int nslots = 1;
1213
Borislav Petkov088b1b82009-01-02 13:34:47 +01001214 ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx",
1215 drive->media, drive->atapi_flags);
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001216
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001217 cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R |
1218 CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO |
1219 CDC_MO_DRIVE | CDC_RAM);
1220
Linus Torvalds1da177e2005-04-16 15:20:36 -07001221 if (drive->media == ide_optical) {
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001222 cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM);
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001223 printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n",
Borislav Petkov83c85652008-04-26 22:25:15 +02001224 drive->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001225 return nslots;
1226 }
1227
Borislav Petkov570f89e2008-07-23 19:56:02 +02001228 if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) {
1229 drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT;
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001230 cdi->mask &= ~CDC_PLAY_AUDIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001231 return nslots;
1232 }
1233
1234 /*
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001235 * We have to cheat a little here. the packet will eventually be queued
1236 * with ide_cdrom_packet(), which extracts the drive from cdi->handle.
1237 * Since this device hasn't been registered with the Uniform layer yet,
1238 * it can't do this. Same goes for cdi->ops.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001239 */
Jesper Juhl2a91f3e2005-10-30 15:02:45 -08001240 cdi->handle = drive;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001241 cdi->ops = &ide_cdrom_dops;
1242
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001243 if (ide_cdrom_get_capabilities(drive, buf))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001244 return 0;
1245
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001246 if ((buf[8 + 6] & 0x01) == 0)
Bartlomiej Zolnierkiewicz42619d32008-10-17 18:09:11 +02001247 drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001248 if (buf[8 + 6] & 0x08)
Borislav Petkov570f89e2008-07-23 19:56:02 +02001249 drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001250 if (buf[8 + 3] & 0x01)
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001251 cdi->mask &= ~CDC_CD_R;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001252 if (buf[8 + 3] & 0x02)
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001253 cdi->mask &= ~(CDC_CD_RW | CDC_RAM);
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001254 if (buf[8 + 2] & 0x38)
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001255 cdi->mask &= ~CDC_DVD;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001256 if (buf[8 + 3] & 0x20)
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001257 cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM);
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001258 if (buf[8 + 3] & 0x10)
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001259 cdi->mask &= ~CDC_DVD_R;
Borislav Petkov570f89e2008-07-23 19:56:02 +02001260 if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK))
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001261 cdi->mask &= ~CDC_PLAY_AUDIO;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001262
1263 mechtype = buf[8 + 6] >> 5;
Borislav Petkovf20f2582008-10-05 18:23:27 +02001264 if (mechtype == mechtype_caddy ||
1265 mechtype == mechtype_popup ||
1266 (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE))
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001267 cdi->mask |= CDC_CLOSE_TRAY;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268
Linus Torvalds1da177e2005-04-16 15:20:36 -07001269 if (cdi->sanyo_slot > 0) {
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001270 cdi->mask &= ~CDC_SELECT_DISC;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001271 nslots = 3;
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +01001272 } else if (mechtype == mechtype_individual_changer ||
1273 mechtype == mechtype_cartridge_changer) {
Bartlomiej Zolnierkiewicz2609d062008-02-01 23:09:19 +01001274 nslots = cdrom_number_of_slots(cdi);
1275 if (nslots > 1)
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001276 cdi->mask &= ~CDC_SELECT_DISC;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001277 }
1278
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001279 ide_cdrom_update_speed(drive, buf);
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001280
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001281 printk(KERN_INFO PFX "%s: ATAPI", drive->name);
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001282
1283 /* don't print speed if the drive reported 0 */
Bartlomiej Zolnierkiewicz2bc4cf22008-02-01 23:09:22 +01001284 if (cd->max_speed)
1285 printk(KERN_CONT " %dX", cd->max_speed);
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001286
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001287 printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001288
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001289 if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0)
1290 printk(KERN_CONT " DVD%s%s",
1291 (cdi->mask & CDC_DVD_R) ? "" : "-R",
Borislav Petkov419a5b62008-10-17 18:09:14 +02001292 (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001293
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001294 if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0)
1295 printk(KERN_CONT " CD%s%s",
1296 (cdi->mask & CDC_CD_R) ? "" : "-R",
1297 (cdi->mask & CDC_CD_RW) ? "" : "/RW");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001298
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001299 if ((cdi->mask & CDC_SELECT_DISC) == 0)
1300 printk(KERN_CONT " changer w/%d slots", nslots);
1301 else
1302 printk(KERN_CONT " drive");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001303
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001304 printk(KERN_CONT ", %dkB Cache\n",
1305 be16_to_cpup((__be16 *)&buf[8 + 12]));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001306
1307 return nslots;
1308}
1309
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001310/* standard prep_rq_fn that builds 10 byte cmds */
Jens Axboe165125e2007-07-24 09:28:11 +02001311static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001312{
Martin K. Petersene1defc42009-05-22 17:17:49 -04001313 int hard_sect = queue_logical_block_size(q);
Tejun Heo5b936292009-05-07 22:24:38 +09001314 long block = (long)blk_rq_pos(rq) / (hard_sect >> 9);
1315 unsigned long blocks = blk_rq_sectors(rq) / (hard_sect >> 9);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001316
FUJITA Tomonorid34c87e2008-04-29 14:37:52 +02001317 memset(rq->cmd, 0, BLK_MAX_CDB);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001318
1319 if (rq_data_dir(rq) == READ)
1320 rq->cmd[0] = GPCMD_READ_10;
1321 else
1322 rq->cmd[0] = GPCMD_WRITE_10;
1323
1324 /*
1325 * fill in lba
1326 */
1327 rq->cmd[2] = (block >> 24) & 0xff;
1328 rq->cmd[3] = (block >> 16) & 0xff;
1329 rq->cmd[4] = (block >> 8) & 0xff;
1330 rq->cmd[5] = block & 0xff;
1331
1332 /*
1333 * and transfer length
1334 */
1335 rq->cmd[7] = (blocks >> 8) & 0xff;
1336 rq->cmd[8] = blocks & 0xff;
1337 rq->cmd_len = 10;
1338 return BLKPREP_OK;
1339}
1340
1341/*
1342 * Most of the SCSI commands are supported directly by ATAPI devices.
1343 * This transform handles the few exceptions.
1344 */
1345static int ide_cdrom_prep_pc(struct request *rq)
1346{
1347 u8 *c = rq->cmd;
1348
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001349 /* transform 6-byte read/write commands to the 10-byte version */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001350 if (c[0] == READ_6 || c[0] == WRITE_6) {
1351 c[8] = c[4];
1352 c[5] = c[3];
1353 c[4] = c[2];
1354 c[3] = c[1] & 0x1f;
1355 c[2] = 0;
1356 c[1] &= 0xe0;
1357 c[0] += (READ_10 - READ_6);
1358 rq->cmd_len = 10;
1359 return BLKPREP_OK;
1360 }
1361
1362 /*
1363 * it's silly to pretend we understand 6-byte sense commands, just
1364 * reject with ILLEGAL_REQUEST and the caller should take the
1365 * appropriate action
1366 */
1367 if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) {
1368 rq->errors = ILLEGAL_REQUEST;
1369 return BLKPREP_KILL;
1370 }
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001371
Linus Torvalds1da177e2005-04-16 15:20:36 -07001372 return BLKPREP_OK;
1373}
1374
Jens Axboe165125e2007-07-24 09:28:11 +02001375static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001376{
Christoph Hellwig33659eb2010-08-07 18:17:56 +02001377 if (rq->cmd_type == REQ_TYPE_FS)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001378 return ide_cdrom_prep_fs(q, rq);
Christoph Hellwig33659eb2010-08-07 18:17:56 +02001379 else if (rq->cmd_type == REQ_TYPE_BLOCK_PC)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001380 return ide_cdrom_prep_pc(rq);
1381
1382 return 0;
1383}
1384
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001385struct cd_list_entry {
1386 const char *id_model;
1387 const char *id_firmware;
1388 unsigned int cd_flags;
1389};
1390
Borislav Petkov5e657a92008-04-26 22:25:15 +02001391#ifdef CONFIG_IDE_PROC_FS
1392static sector_t ide_cdrom_capacity(ide_drive_t *drive)
1393{
1394 unsigned long capacity, sectors_per_frame;
1395
1396 if (cdrom_read_capacity(drive, &capacity, &sectors_per_frame, NULL))
1397 return 0;
1398
1399 return capacity * sectors_per_frame;
1400}
1401
Alexey Dobriyan6d703a82009-09-01 17:52:57 -07001402static int idecd_capacity_proc_show(struct seq_file *m, void *v)
Borislav Petkov5e657a92008-04-26 22:25:15 +02001403{
Alexey Dobriyan6d703a82009-09-01 17:52:57 -07001404 ide_drive_t *drive = m->private;
Borislav Petkov5e657a92008-04-26 22:25:15 +02001405
Alexey Dobriyan6d703a82009-09-01 17:52:57 -07001406 seq_printf(m, "%llu\n", (long long)ide_cdrom_capacity(drive));
1407 return 0;
Borislav Petkov5e657a92008-04-26 22:25:15 +02001408}
1409
Alexey Dobriyan6d703a82009-09-01 17:52:57 -07001410static int idecd_capacity_proc_open(struct inode *inode, struct file *file)
1411{
1412 return single_open(file, idecd_capacity_proc_show, PDE(inode)->data);
1413}
1414
1415static const struct file_operations idecd_capacity_proc_fops = {
1416 .owner = THIS_MODULE,
1417 .open = idecd_capacity_proc_open,
1418 .read = seq_read,
1419 .llseek = seq_lseek,
1420 .release = single_release,
1421};
1422
Borislav Petkov5e657a92008-04-26 22:25:15 +02001423static ide_proc_entry_t idecd_proc[] = {
Alexey Dobriyan6d703a82009-09-01 17:52:57 -07001424 { "capacity", S_IFREG|S_IRUGO, &idecd_capacity_proc_fops },
1425 {}
Borislav Petkov5e657a92008-04-26 22:25:15 +02001426};
1427
Bartlomiej Zolnierkiewicz79cb3802008-10-17 18:09:13 +02001428static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive)
1429{
1430 return idecd_proc;
1431}
1432
1433static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive)
1434{
Bartlomiej Zolnierkiewicz519d6802008-12-29 20:27:38 +01001435 return NULL;
Bartlomiej Zolnierkiewicz79cb3802008-10-17 18:09:13 +02001436}
Borislav Petkov5e657a92008-04-26 22:25:15 +02001437#endif
1438
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001439static const struct cd_list_entry ide_cd_quirks_list[] = {
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001440 /* SCR-3231 doesn't support the SET_CD_SPEED command. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001441 { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001442 /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001443 { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD |
1444 IDE_AFLAG_PRE_ATAPI12, },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001445 /* Vertos 300, some versions of this drive like to talk BCD. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001446 { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001447 /* Vertos 600 ESD. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001448 { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001449 /*
1450 * Sanyo 3 CD changer uses a non-standard command for CD changing
1451 * (by default standard ATAPI support for CD changers is used).
1452 */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001453 { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD },
1454 { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD },
1455 { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001456 /* Stingray 8X CD-ROM. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001457 { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001458 /*
1459 * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length
1460 * mode sense page capabilities size, but older drives break.
1461 */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001462 { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE },
1463 { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001464 /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001465 { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001466 /*
1467 * Some drives used by Apple don't advertise audio play
1468 * but they do support reading TOC & audio datas.
1469 */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001470 { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1471 { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1472 { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1473 { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1474 { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
Bodo Eggertf3e85ee2008-10-05 18:23:28 +02001475 { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
Borislav Petkovf20f2582008-10-05 18:23:27 +02001476 { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE },
Márton Németh64c2eae2008-10-23 23:22:09 +02001477 { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001478 { NULL, NULL, 0 }
1479};
1480
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +02001481static unsigned int ide_cd_flags(u16 *id)
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001482{
1483 const struct cd_list_entry *cle = ide_cd_quirks_list;
1484
1485 while (cle->id_model) {
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +02001486 if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 &&
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001487 (cle->id_firmware == NULL ||
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +02001488 strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware)))
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001489 return cle->cd_flags;
1490 cle++;
1491 }
1492
1493 return 0;
1494}
1495
Borislav Petkove5e076a2008-04-26 22:25:15 +02001496static int ide_cdrom_setup(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001497{
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001498 struct cdrom_info *cd = drive->driver_data;
1499 struct cdrom_device_info *cdi = &cd->devinfo;
Bartlomiej Zolnierkiewicze698ea82009-03-31 20:15:16 +02001500 struct request_queue *q = drive->queue;
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +02001501 u16 *id = drive->id;
1502 char *fw_rev = (char *)&id[ATA_ID_FW_REV];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001503 int nslots;
1504
Borislav Petkov088b1b82009-01-02 13:34:47 +01001505 ide_debug_log(IDE_DBG_PROBE, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001506
Bartlomiej Zolnierkiewicze698ea82009-03-31 20:15:16 +02001507 blk_queue_prep_rq(q, ide_cdrom_prep_fn);
1508 blk_queue_dma_alignment(q, 31);
1509 blk_queue_update_dma_pad(q, 15);
1510
Bartlomiej Zolnierkiewiczfe11edf2008-10-17 18:09:11 +02001511 drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
1512 drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001513
Borislav Petkov570f89e2008-07-23 19:56:02 +02001514 if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) &&
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +02001515 fw_rev[4] == '1' && fw_rev[6] <= '2')
Borislav Petkov570f89e2008-07-23 19:56:02 +02001516 drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD |
1517 IDE_AFLAG_TOCADDR_AS_BCD);
1518 else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) &&
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +02001519 fw_rev[4] == '1' && fw_rev[6] <= '2')
Borislav Petkov570f89e2008-07-23 19:56:02 +02001520 drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD;
1521 else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD)
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001522 /* 3 => use CD in slot 0 */
1523 cdi->sanyo_slot = 3;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001524
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001525 nslots = ide_cdrom_probe_capabilities(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001526
Martin K. Petersene1defc42009-05-22 17:17:49 -04001527 blk_queue_logical_block_size(q, CD_FRAMESIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001528
Linus Torvalds1da177e2005-04-16 15:20:36 -07001529 if (ide_cdrom_register(drive, nslots)) {
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001530 printk(KERN_ERR PFX "%s: %s failed to register device with the"
Borislav Petkov83c85652008-04-26 22:25:15 +02001531 " cdrom driver.\n", drive->name, __func__);
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001532 cd->devinfo.handle = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001533 return 1;
1534 }
Bartlomiej Zolnierkiewicz1e874f42008-10-10 22:39:27 +02001535
1536 ide_proc_register_driver(drive, cd->driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001537 return 0;
1538}
1539
Russell King4031bbe2006-01-06 11:41:00 +00001540static void ide_cd_remove(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001541{
1542 struct cdrom_info *info = drive->driver_data;
1543
Borislav Petkov088b1b82009-01-02 13:34:47 +01001544 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001545
Bartlomiej Zolnierkiewicz7662d042007-05-10 00:01:10 +02001546 ide_proc_unregister_driver(drive, info->driver);
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001547 device_del(&info->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001548 del_gendisk(info->disk);
1549
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001550 mutex_lock(&idecd_ref_mutex);
1551 put_device(&info->dev);
1552 mutex_unlock(&idecd_ref_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001553}
1554
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001555static void ide_cd_release(struct device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001556{
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001557 struct cdrom_info *info = to_ide_drv(dev, cdrom_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001558 struct cdrom_device_info *devinfo = &info->devinfo;
1559 ide_drive_t *drive = info->drive;
1560 struct gendisk *g = info->disk;
1561
Borislav Petkov088b1b82009-01-02 13:34:47 +01001562 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001563
Jesper Juhl6044ec82005-11-07 01:01:32 -08001564 kfree(info->toc);
Akinobu Mita0a0c4112008-03-26 12:09:02 +01001565 if (devinfo->handle == drive)
1566 unregister_cdrom(devinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001567 drive->driver_data = NULL;
1568 blk_queue_prep_rq(drive->queue, NULL);
1569 g->private_data = NULL;
1570 put_disk(g);
1571 kfree(info);
1572}
1573
Russell King4031bbe2006-01-06 11:41:00 +00001574static int ide_cd_probe(ide_drive_t *);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001575
Bartlomiej Zolnierkiewicz7f3c8682009-01-06 17:20:53 +01001576static struct ide_driver ide_cdrom_driver = {
Bartlomiej Zolnierkiewicz8604aff2005-05-26 14:55:34 +02001577 .gen_driver = {
Laurent Riffard4ef3b8f2005-11-18 22:15:40 +01001578 .owner = THIS_MODULE,
Bartlomiej Zolnierkiewicz8604aff2005-05-26 14:55:34 +02001579 .name = "ide-cdrom",
1580 .bus = &ide_bus_type,
Bartlomiej Zolnierkiewicz8604aff2005-05-26 14:55:34 +02001581 },
Russell King4031bbe2006-01-06 11:41:00 +00001582 .probe = ide_cd_probe,
1583 .remove = ide_cd_remove,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001584 .version = IDECD_VERSION,
Borislav Petkov99384ae2008-07-16 20:33:45 +02001585 .do_request = ide_cd_do_request,
Bartlomiej Zolnierkiewicz7662d042007-05-10 00:01:10 +02001586#ifdef CONFIG_IDE_PROC_FS
Bartlomiej Zolnierkiewicz79cb3802008-10-17 18:09:13 +02001587 .proc_entries = ide_cd_proc_entries,
1588 .proc_devsets = ide_cd_proc_devsets,
Bartlomiej Zolnierkiewicz7662d042007-05-10 00:01:10 +02001589#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001590};
1591
Al Viro488ca602008-03-02 10:26:23 -05001592static int idecd_open(struct block_device *bdev, fmode_t mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001593{
Arnd Bergmann6e9624b2010-08-07 18:25:34 +02001594 struct cdrom_info *info;
1595 int rc = -ENXIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001596
Arnd Bergmann2a48fc02010-06-02 14:28:52 +02001597 mutex_lock(&ide_cd_mutex);
Arnd Bergmann6e9624b2010-08-07 18:25:34 +02001598 info = ide_cd_get(bdev->bd_disk);
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001599 if (!info)
Arnd Bergmann6e9624b2010-08-07 18:25:34 +02001600 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001601
Al Viro488ca602008-03-02 10:26:23 -05001602 rc = cdrom_open(&info->devinfo, bdev, mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001603 if (rc < 0)
1604 ide_cd_put(info);
Arnd Bergmann6e9624b2010-08-07 18:25:34 +02001605out:
Arnd Bergmann2a48fc02010-06-02 14:28:52 +02001606 mutex_unlock(&ide_cd_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001607 return rc;
1608}
1609
Al Viro488ca602008-03-02 10:26:23 -05001610static int idecd_release(struct gendisk *disk, fmode_t mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001611{
Borislav Petkov5aeddf92008-10-13 21:39:34 +02001612 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001613
Arnd Bergmann2a48fc02010-06-02 14:28:52 +02001614 mutex_lock(&ide_cd_mutex);
Al Viro488ca602008-03-02 10:26:23 -05001615 cdrom_release(&info->devinfo, mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001616
1617 ide_cd_put(info);
Arnd Bergmann2a48fc02010-06-02 14:28:52 +02001618 mutex_unlock(&ide_cd_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001619
1620 return 0;
1621}
1622
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001623static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg)
1624{
1625 struct packet_command cgc;
1626 char buffer[16];
1627 int stat;
1628 char spindown;
1629
1630 if (copy_from_user(&spindown, (void __user *)arg, sizeof(char)))
1631 return -EFAULT;
1632
1633 init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
1634
1635 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0);
1636 if (stat)
1637 return stat;
1638
1639 buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f);
1640 return cdrom_mode_select(cdi, &cgc);
1641}
1642
1643static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg)
1644{
1645 struct packet_command cgc;
1646 char buffer[16];
1647 int stat;
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001648 char spindown;
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001649
1650 init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
1651
1652 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0);
1653 if (stat)
1654 return stat;
1655
1656 spindown = buffer[11] & 0x0f;
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001657 if (copy_to_user((void __user *)arg, &spindown, sizeof(char)))
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001658 return -EFAULT;
1659 return 0;
1660}
1661
Arnd Bergmann8a6cfeb2010-07-08 10:18:46 +02001662static int idecd_locked_ioctl(struct block_device *bdev, fmode_t mode,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001663 unsigned int cmd, unsigned long arg)
1664{
Borislav Petkov5aeddf92008-10-13 21:39:34 +02001665 struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001666 int err;
1667
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001668 switch (cmd) {
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001669 case CDROMSETSPINDOWN:
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001670 return idecd_set_spindown(&info->devinfo, arg);
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001671 case CDROMGETSPINDOWN:
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001672 return idecd_get_spindown(&info->devinfo, arg);
1673 default:
1674 break;
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001675 }
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001676
Al Viro1bddd9e2008-09-02 17:19:43 -04001677 err = generic_ide_ioctl(info->drive, bdev, cmd, arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001678 if (err == -EINVAL)
Al Viro488ca602008-03-02 10:26:23 -05001679 err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001680
1681 return err;
1682}
1683
Arnd Bergmann8a6cfeb2010-07-08 10:18:46 +02001684static int idecd_ioctl(struct block_device *bdev, fmode_t mode,
1685 unsigned int cmd, unsigned long arg)
1686{
1687 int ret;
1688
Arnd Bergmann2a48fc02010-06-02 14:28:52 +02001689 mutex_lock(&ide_cd_mutex);
Arnd Bergmann8a6cfeb2010-07-08 10:18:46 +02001690 ret = idecd_locked_ioctl(bdev, mode, cmd, arg);
Arnd Bergmann2a48fc02010-06-02 14:28:52 +02001691 mutex_unlock(&ide_cd_mutex);
Arnd Bergmann8a6cfeb2010-07-08 10:18:46 +02001692
1693 return ret;
1694}
1695
1696
Tejun Heo5b03a1b2011-03-09 19:54:27 +01001697static unsigned int idecd_check_events(struct gendisk *disk,
1698 unsigned int clearing)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001699{
Borislav Petkov5aeddf92008-10-13 21:39:34 +02001700 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
Tejun Heo5b03a1b2011-03-09 19:54:27 +01001701 return cdrom_check_events(&info->devinfo, clearing);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001702}
1703
1704static int idecd_revalidate_disk(struct gendisk *disk)
1705{
Borislav Petkov5aeddf92008-10-13 21:39:34 +02001706 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001707 struct request_sense sense;
Bartlomiej Zolnierkiewicz139c8292008-02-01 23:09:24 +01001708
1709 ide_cd_read_toc(info->drive, &sense);
1710
Linus Torvalds1da177e2005-04-16 15:20:36 -07001711 return 0;
1712}
1713
Alexey Dobriyan83d5cde2009-09-21 17:01:13 -07001714static const struct block_device_operations idecd_ops = {
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001715 .owner = THIS_MODULE,
Al Viro488ca602008-03-02 10:26:23 -05001716 .open = idecd_open,
1717 .release = idecd_release,
Arnd Bergmann8a6cfeb2010-07-08 10:18:46 +02001718 .ioctl = idecd_ioctl,
Tejun Heo5b03a1b2011-03-09 19:54:27 +01001719 .check_events = idecd_check_events,
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001720 .revalidate_disk = idecd_revalidate_disk
Linus Torvalds1da177e2005-04-16 15:20:36 -07001721};
1722
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001723/* module options */
Borislav Petkov35d9b172008-10-13 21:39:49 +02001724static unsigned long debug_mask;
1725module_param(debug_mask, ulong, 0644);
1726
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727MODULE_DESCRIPTION("ATAPI CD-ROM Driver");
1728
Russell King4031bbe2006-01-06 11:41:00 +00001729static int ide_cd_probe(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001730{
1731 struct cdrom_info *info;
1732 struct gendisk *g;
1733 struct request_sense sense;
1734
Borislav Petkov088b1b82009-01-02 13:34:47 +01001735 ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x",
1736 drive->driver_req, drive->media);
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001737
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738 if (!strstr("ide-cdrom", drive->driver_req))
1739 goto failed;
Bartlomiej Zolnierkiewicz2a924662008-10-10 22:39:24 +02001740
Linus Torvalds1da177e2005-04-16 15:20:36 -07001741 if (drive->media != ide_cdrom && drive->media != ide_optical)
1742 goto failed;
Bartlomiej Zolnierkiewicz2a924662008-10-10 22:39:24 +02001743
Borislav Petkov35d9b172008-10-13 21:39:49 +02001744 drive->debug_mask = debug_mask;
Borislav Petkovd6251d42009-01-06 17:20:58 +01001745 drive->irq_handler = cdrom_newpc_intr;
Borislav Petkov35d9b172008-10-13 21:39:49 +02001746
Deepak Saxenaf5e3c2f2005-11-07 01:01:25 -08001747 info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001748 if (info == NULL) {
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001749 printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n",
Borislav Petkov83c85652008-04-26 22:25:15 +02001750 drive->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001751 goto failed;
1752 }
1753
1754 g = alloc_disk(1 << PARTN_BITS);
1755 if (!g)
1756 goto out_free_cd;
1757
1758 ide_init_disk(g, drive);
1759
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001760 info->dev.parent = &drive->gendev;
1761 info->dev.release = ide_cd_release;
1762 dev_set_name(&info->dev, dev_name(&drive->gendev));
1763
1764 if (device_register(&info->dev))
1765 goto out_free_disk;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001766
1767 info->drive = drive;
1768 info->driver = &ide_cdrom_driver;
1769 info->disk = g;
1770
1771 g->private_data = &info->driver;
1772
1773 drive->driver_data = info;
1774
Linus Torvalds1da177e2005-04-16 15:20:36 -07001775 g->minors = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001776 g->driverfs_dev = &drive->gendev;
1777 g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;
1778 if (ide_cdrom_setup(drive)) {
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001779 put_device(&info->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001780 goto failed;
1781 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001782
Bartlomiej Zolnierkiewicz139c8292008-02-01 23:09:24 +01001783 ide_cd_read_toc(drive, &sense);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001784 g->fops = &idecd_ops;
Tejun Heod4dc2102011-04-21 20:54:46 +02001785 g->flags |= GENHD_FL_REMOVABLE | GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001786 add_disk(g);
1787 return 0;
1788
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001789out_free_disk:
1790 put_disk(g);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001791out_free_cd:
1792 kfree(info);
1793failed:
Bartlomiej Zolnierkiewicz8604aff2005-05-26 14:55:34 +02001794 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001795}
1796
1797static void __exit ide_cdrom_exit(void)
1798{
Bartlomiej Zolnierkiewicz8604aff2005-05-26 14:55:34 +02001799 driver_unregister(&ide_cdrom_driver.gen_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001800}
Bartlomiej Zolnierkiewicz17514e82005-11-19 22:24:35 +01001801
1802static int __init ide_cdrom_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001803{
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001804 printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n");
Bartlomiej Zolnierkiewicz8604aff2005-05-26 14:55:34 +02001805 return driver_register(&ide_cdrom_driver.gen_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001806}
1807
Kay Sievers263756e2005-12-12 18:03:44 +01001808MODULE_ALIAS("ide:*m-cdrom*");
Bartlomiej Zolnierkiewicz972560f2008-02-01 23:09:23 +01001809MODULE_ALIAS("ide-cd");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001810module_init(ide_cdrom_init);
1811module_exit(ide_cdrom_exit);
1812MODULE_LICENSE("GPL");