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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/io.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070047#include <asm/byteorder.h>
Borislav Petkov9aba4682008-04-26 22:25:15 +020048#include <linux/uaccess.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070049#include <asm/unaligned.h>
50
51#include "ide-cd.h"
52
Arnd Bergmann2a48fc02010-06-02 14:28:52 +020053static DEFINE_MUTEX(ide_cd_mutex);
Arjan van de Vencf8b8972006-03-23 03:00:45 -080054static DEFINE_MUTEX(idecd_ref_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -070055
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +010056static void ide_cd_release(struct device *);
Bartlomiej Zolnierkiewicz08da5912008-07-24 22:53:15 +020057
Linus Torvalds1da177e2005-04-16 15:20:36 -070058static struct cdrom_info *ide_cd_get(struct gendisk *disk)
59{
60 struct cdrom_info *cd = NULL;
61
Arjan van de Vencf8b8972006-03-23 03:00:45 -080062 mutex_lock(&idecd_ref_mutex);
Borislav Petkov5aeddf92008-10-13 21:39:34 +020063 cd = ide_drv_g(disk, cdrom_info);
Bartlomiej Zolnierkiewicz08da5912008-07-24 22:53:15 +020064 if (cd) {
Bartlomiej Zolnierkiewiczd3e33ff2008-08-05 18:16:59 +020065 if (ide_device_get(cd->drive))
Bartlomiej Zolnierkiewicz08da5912008-07-24 22:53:15 +020066 cd = NULL;
Bartlomiej Zolnierkiewiczd3e33ff2008-08-05 18:16:59 +020067 else
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +010068 get_device(&cd->dev);
Bartlomiej Zolnierkiewiczd3e33ff2008-08-05 18:16:59 +020069
Bartlomiej Zolnierkiewicz08da5912008-07-24 22:53:15 +020070 }
Arjan van de Vencf8b8972006-03-23 03:00:45 -080071 mutex_unlock(&idecd_ref_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -070072 return cd;
73}
74
Linus Torvalds1da177e2005-04-16 15:20:36 -070075static void ide_cd_put(struct cdrom_info *cd)
76{
Bartlomiej Zolnierkiewiczd3e33ff2008-08-05 18:16:59 +020077 ide_drive_t *drive = cd->drive;
78
Arjan van de Vencf8b8972006-03-23 03:00:45 -080079 mutex_lock(&idecd_ref_mutex);
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +010080 put_device(&cd->dev);
Bartlomiej Zolnierkiewiczd3e33ff2008-08-05 18:16:59 +020081 ide_device_put(drive);
Arjan van de Vencf8b8972006-03-23 03:00:45 -080082 mutex_unlock(&idecd_ref_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -070083}
84
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +020085/*
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 * Generic packet command support and error handling routines.
87 */
88
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +020089/* Mark that we've seen a media change and invalidate our internal buffers. */
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +020090static void cdrom_saw_media_change(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -070091{
Bartlomiej Zolnierkiewiczfe11edf2008-10-17 18:09:11 +020092 drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
Borislav Petkov570f89e2008-07-23 19:56:02 +020093 drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID;
Linus Torvalds1da177e2005-04-16 15:20:36 -070094}
95
Borislav Petkov239f7e252009-04-23 08:30:29 +020096static int cdrom_log_sense(ide_drive_t *drive, struct request *rq)
Linus Torvalds1da177e2005-04-16 15:20:36 -070097{
Borislav Petkov239f7e252009-04-23 08:30:29 +020098 struct request_sense *sense = &drive->sense_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -070099 int log = 0;
100
Jens Axboe4aff5e22006-08-10 08:44:47 +0200101 if (!sense || !rq || (rq->cmd_flags & REQ_QUIET))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700102 return 0;
103
Borislav Petkov239f7e252009-04-23 08:30:29 +0200104 ide_debug_log(IDE_DBG_SENSE, "sense_key: 0x%x", sense->sense_key);
105
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106 switch (sense->sense_key) {
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200107 case NO_SENSE:
108 case RECOVERED_ERROR:
109 break;
110 case NOT_READY:
111 /*
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200112 * don't care about tray state messages for e.g. capacity
113 * commands or in-progress or becoming ready
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200114 */
115 if (sense->asc == 0x3a || sense->asc == 0x04)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 break;
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200117 log = 1;
118 break;
119 case ILLEGAL_REQUEST:
120 /*
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200121 * don't log START_STOP unit with LoEj set, since we cannot
122 * reliably check if drive can auto-close
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200123 */
124 if (rq->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125 break;
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200126 log = 1;
127 break;
128 case UNIT_ATTENTION:
129 /*
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200130 * Make good and sure we've seen this potential media change.
131 * Some drives (i.e. Creative) fail to present the correct sense
132 * key in the error register.
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200133 */
134 cdrom_saw_media_change(drive);
135 break;
136 default:
137 log = 1;
138 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700139 }
140 return log;
141}
142
Borislav Petkove5e076a2008-04-26 22:25:15 +0200143static void cdrom_analyze_sense_data(ide_drive_t *drive,
Borislav Petkov239f7e252009-04-23 08:30:29 +0200144 struct request *failed_command)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700145{
Borislav Petkov239f7e252009-04-23 08:30:29 +0200146 struct request_sense *sense = &drive->sense_data;
147 struct cdrom_info *info = drive->driver_data;
Alan Coxdbe217a2006-06-25 05:47:44 -0700148 unsigned long sector;
149 unsigned long bio_sectors;
Alan Coxdbe217a2006-06-25 05:47:44 -0700150
Borislav Petkov088b1b82009-01-02 13:34:47 +0100151 ide_debug_log(IDE_DBG_SENSE, "error_code: 0x%x, sense_key: 0x%x",
152 sense->error_code, sense->sense_key);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200153
154 if (failed_command)
Borislav Petkov088b1b82009-01-02 13:34:47 +0100155 ide_debug_log(IDE_DBG_SENSE, "failed cmd: 0x%x",
156 failed_command->cmd[0]);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200157
Borislav Petkov239f7e252009-04-23 08:30:29 +0200158 if (!cdrom_log_sense(drive, failed_command))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 return;
160
161 /*
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200162 * If a read toc is executed for a CD-R or CD-RW medium where the first
163 * toc has not been recorded yet, it will fail with 05/24/00 (which is a
164 * confusing error)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 */
166 if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP)
167 if (sense->sense_key == 0x05 && sense->asc == 0x24)
168 return;
169
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200170 /* current error */
171 if (sense->error_code == 0x70) {
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200172 switch (sense->sense_key) {
Alan Coxdbe217a2006-06-25 05:47:44 -0700173 case MEDIUM_ERROR:
174 case VOLUME_OVERFLOW:
175 case ILLEGAL_REQUEST:
176 if (!sense->valid)
177 break;
178 if (failed_command == NULL ||
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200179 failed_command->cmd_type != REQ_TYPE_FS)
Alan Coxdbe217a2006-06-25 05:47:44 -0700180 break;
181 sector = (sense->information[0] << 24) |
182 (sense->information[1] << 16) |
183 (sense->information[2] << 8) |
184 (sense->information[3]);
185
Martin K. Petersene1defc42009-05-22 17:17:49 -0400186 if (queue_logical_block_size(drive->queue) == 2048)
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200187 /* device sector size is 2K */
188 sector <<= 2;
Roel Kluineee49292008-04-28 23:44:43 +0200189
190 bio_sectors = max(bio_sectors(failed_command->bio), 4U);
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200191 sector &= ~(bio_sectors - 1);
Alan Coxdbe217a2006-06-25 05:47:44 -0700192
Bartlomiej Zolnierkiewiczd3dd7102009-02-25 20:28:23 +0100193 /*
194 * The SCSI specification allows for the value
195 * returned by READ CAPACITY to be up to 75 2K
196 * sectors past the last readable block.
197 * Therefore, if we hit a medium error within the
198 * last 75 2K sectors, we decrease the saved size
199 * value.
200 */
Alan Coxdbe217a2006-06-25 05:47:44 -0700201 if (sector < get_capacity(info->disk) &&
Borislav Petkove5e076a2008-04-26 22:25:15 +0200202 drive->probed_capacity - sector < 4 * 75)
Alan Coxdbe217a2006-06-25 05:47:44 -0700203 set_capacity(info->disk, sector);
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +0200204 }
205 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700206
Bartlomiej Zolnierkiewicz972560f2008-02-01 23:09:23 +0100207 ide_cd_log_error(drive->name, failed_command, sense);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208}
209
Bartlomiej Zolnierkiewicz299c4852009-03-31 20:15:01 +0200210static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq)
211{
212 /*
Tejun Heo1f181d22009-04-19 07:00:42 +0900213 * For REQ_TYPE_SENSE, "rq->special" points to the original
Tejun Heo02e7cf82009-04-19 07:00:42 +0900214 * failed request. Also, the sense data should be read
215 * directly from rq which might be different from the original
216 * sense buffer if it got copied during mapping.
Bartlomiej Zolnierkiewicz299c4852009-03-31 20:15:01 +0200217 */
Tejun Heo1f181d22009-04-19 07:00:42 +0900218 struct request *failed = (struct request *)rq->special;
Tejun Heo02e7cf82009-04-19 07:00:42 +0900219 void *sense = bio_data(rq->bio);
Bartlomiej Zolnierkiewicz299c4852009-03-31 20:15:01 +0200220
221 if (failed) {
222 if (failed->sense) {
Borislav Petkovc457ce82009-04-19 07:00:42 +0900223 /*
224 * Sense is always read into drive->sense_data.
225 * Copy back if the failed request has its
226 * sense pointer set.
227 */
228 memcpy(failed->sense, sense, 18);
Bartlomiej Zolnierkiewicz299c4852009-03-31 20:15:01 +0200229 failed->sense_len = rq->sense_len;
230 }
Borislav Petkov239f7e252009-04-23 08:30:29 +0200231 cdrom_analyze_sense_data(drive, failed);
Bartlomiej Zolnierkiewicz299c4852009-03-31 20:15:01 +0200232
233 if (ide_end_rq(drive, failed, -EIO, blk_rq_bytes(failed)))
234 BUG();
235 } else
Borislav Petkov239f7e252009-04-23 08:30:29 +0200236 cdrom_analyze_sense_data(drive, NULL);
Bartlomiej Zolnierkiewicz299c4852009-03-31 20:15:01 +0200237}
238
Borislav Petkov805ec582009-04-08 14:12:52 +0200239
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200240/*
Borislav Petkov805ec582009-04-08 14:12:52 +0200241 * Allow the drive 5 seconds to recover; some devices will return NOT_READY
242 * while flushing data from cache.
243 *
244 * returns: 0 failed (write timeout expired)
245 * 1 success
246 */
247static int ide_cd_breathe(ide_drive_t *drive, struct request *rq)
248{
249
250 struct cdrom_info *info = drive->driver_data;
251
252 if (!rq->errors)
253 info->write_timeout = jiffies + ATAPI_WAIT_WRITE_BUSY;
254
255 rq->errors = 1;
256
257 if (time_after(jiffies, info->write_timeout))
258 return 0;
259 else {
Borislav Petkov805ec582009-04-08 14:12:52 +0200260 /*
Jens Axboe0a41e902010-04-16 21:11:21 +0200261 * take a breather
Borislav Petkov805ec582009-04-08 14:12:52 +0200262 */
Jens Axboe0a41e902010-04-16 21:11:21 +0200263 blk_delay_queue(drive->queue, 1);
Borislav Petkov805ec582009-04-08 14:12:52 +0200264 return 1;
265 }
266}
267
268/**
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200269 * Returns:
270 * 0: if the request should be continued.
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200271 * 1: if the request will be going through error recovery.
272 * 2: if the request should be ended.
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200273 */
Borislav Petkov8e59bfd2009-04-08 14:12:51 +0200274static int cdrom_decode_status(ide_drive_t *drive, u8 stat)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700275{
Bartlomiej Zolnierkiewiczb73c7ee2008-07-23 19:55:52 +0200276 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewiczb65fac32009-01-06 17:20:50 +0100277 struct request *rq = hwif->rq;
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200278 int err, sense_key, do_end_request = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700279
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200280 /* get the IDE error register */
Bartlomiej Zolnierkiewicz64a57fe2008-02-06 02:57:51 +0100281 err = ide_read_error(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282 sense_key = err >> 4;
283
Borislav Petkov98036ab2009-04-08 14:12:53 +0200284 ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, rq->cmd_type: 0x%x, err: 0x%x, "
285 "stat 0x%x",
286 rq->cmd[0], rq->cmd_type, err, stat);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200287
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200288 if (rq->cmd_type == REQ_TYPE_SENSE) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200289 /*
290 * We got an error trying to get sense info from the drive
291 * (probably while trying to recover from a former error).
292 * Just give up.
293 */
Jens Axboe4aff5e22006-08-10 08:44:47 +0200294 rq->cmd_flags |= REQ_FAILED;
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200295 return 2;
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200296 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200298 /* if we have an error, pass CHECK_CONDITION as the SCSI status byte */
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200299 if (rq->cmd_type == REQ_TYPE_BLOCK_PC && !rq->errors)
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200300 rq->errors = SAM_STAT_CHECK_CONDITION;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700301
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200302 if (blk_noretry_request(rq))
303 do_end_request = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700304
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200305 switch (sense_key) {
306 case NOT_READY:
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200307 if (rq->cmd_type == REQ_TYPE_FS && rq_data_dir(rq) == WRITE) {
Borislav Petkov3c8a48e2009-04-08 14:13:03 +0200308 if (ide_cd_breathe(drive, rq))
309 return 1;
310 } else {
Borislav Petkove5e076a2008-04-26 22:25:15 +0200311 cdrom_saw_media_change(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700312
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200313 if (rq->cmd_type == REQ_TYPE_FS &&
Christoph Hellwig4c4762d2010-06-19 17:26:47 +0200314 !(rq->cmd_flags & REQ_QUIET))
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200315 printk(KERN_ERR PFX "%s: tray open\n",
316 drive->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317 }
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200318 do_end_request = 1;
319 break;
320 case UNIT_ATTENTION:
321 cdrom_saw_media_change(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700322
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200323 if (rq->cmd_type != REQ_TYPE_FS)
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200324 return 0;
325
326 /*
327 * Arrange to retry the request but be sure to give up if we've
328 * retried too many times.
329 */
330 if (++rq->errors > ERROR_MAX)
Bartlomiej Zolnierkiewicz1920c482009-04-08 14:12:54 +0200331 do_end_request = 1;
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200332 break;
333 case ILLEGAL_REQUEST:
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200334 /*
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200335 * Don't print error message for this condition -- SFF8090i
336 * indicates that 5/24/00 is the correct response to a request
337 * to close the tray if the drive doesn't have that capability.
338 *
339 * cdrom_log_sense() knows this!
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200340 */
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200341 if (rq->cmd[0] == GPCMD_START_STOP_UNIT)
342 break;
343 /* fall-through */
344 case DATA_PROTECT:
Bartlomiej Zolnierkiewiczbbb89e32008-02-01 23:09:28 +0100345 /*
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200346 * No point in retrying after an illegal request or data
347 * protect error.
Bartlomiej Zolnierkiewiczbbb89e32008-02-01 23:09:28 +0100348 */
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200349 if (!(rq->cmd_flags & REQ_QUIET))
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200350 ide_dump_status(drive, "command error", stat);
351 do_end_request = 1;
352 break;
353 case MEDIUM_ERROR:
354 /*
355 * No point in re-trying a zillion times on a bad sector.
356 * If we got here the error is not correctable.
357 */
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200358 if (!(rq->cmd_flags & REQ_QUIET))
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200359 ide_dump_status(drive, "media error "
360 "(bad sector)", stat);
361 do_end_request = 1;
362 break;
363 case BLANK_CHECK:
364 /* disk appears blank? */
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200365 if (!(rq->cmd_flags & REQ_QUIET))
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200366 ide_dump_status(drive, "media error (blank)",
367 stat);
368 do_end_request = 1;
369 break;
370 default:
Christoph Hellwig4c4762d2010-06-19 17:26:47 +0200371 if (rq->cmd_type != REQ_TYPE_FS)
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200372 break;
373 if (err & ~ATA_ABORTED) {
374 /* go to the default handler for other errors */
375 ide_error(drive, "cdrom_decode_status", stat);
376 return 1;
377 } else if (++rq->errors > ERROR_MAX)
378 /* we've racked up too many retries, abort */
379 do_end_request = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700380 }
381
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200382 if (rq->cmd_type != REQ_TYPE_FS) {
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200383 rq->cmd_flags |= REQ_FAILED;
384 do_end_request = 1;
385 }
386
387 /*
388 * End a request through request sense analysis when we have sense data.
389 * We need this in order to perform end of media processing.
390 */
391 if (do_end_request)
392 goto end_request;
393
394 /* if we got a CHECK_CONDITION status, queue a request sense command */
395 if (stat & ATA_ERR)
Tejun Heo02e7cf82009-04-19 07:00:42 +0900396 return ide_queue_sense_rq(drive, NULL) ? 2 : 1;
Bartlomiej Zolnierkiewicz674f0ea2009-04-08 14:12:54 +0200397 return 1;
398
Bartlomiej Zolnierkiewiczbbb89e32008-02-01 23:09:28 +0100399end_request:
Bartlomiej Zolnierkiewicz3a7d2482008-10-10 22:39:21 +0200400 if (stat & ATA_ERR) {
Bartlomiej Zolnierkiewiczb65fac32009-01-06 17:20:50 +0100401 hwif->rq = NULL;
Tejun Heo02e7cf82009-04-19 07:00:42 +0900402 return ide_queue_sense_rq(drive, rq) ? 2 : 1;
Bartlomiej Zolnierkiewiczbbb89e32008-02-01 23:09:28 +0100403 } else
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200404 return 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405}
406
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200407static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct ide_cmd *cmd)
Bartlomiej Zolnierkiewicz8ee69f52008-02-01 23:09:25 +0100408{
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200409 struct request *rq = cmd->rq;
410
Borislav Petkov088b1b82009-01-02 13:34:47 +0100411 ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200412
Bartlomiej Zolnierkiewicz8ee69f52008-02-01 23:09:25 +0100413 /*
414 * Some of the trailing request sense fields are optional,
415 * and some drives don't send them. Sigh.
416 */
417 if (rq->cmd[0] == GPCMD_REQUEST_SENSE &&
Tejun Heo59a4f6f2009-04-19 07:00:41 +0900418 cmd->nleft > 0 && cmd->nleft <= 5)
419 cmd->nleft = 0;
Bartlomiej Zolnierkiewicz8ee69f52008-02-01 23:09:25 +0100420}
421
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200422int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd,
423 int write, void *buffer, unsigned *bufflen,
424 struct request_sense *sense, int timeout,
425 unsigned int cmd_flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426{
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200427 struct cdrom_info *info = drive->driver_data;
428 struct request_sense local_sense;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429 int retries = 10;
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200430 unsigned int flags = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200432 if (!sense)
433 sense = &local_sense;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700434
Borislav Petkov088b1b82009-01-02 13:34:47 +0100435 ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, "
436 "cmd_flags: 0x%x",
437 cmd[0], write, timeout, cmd_flags);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200438
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200439 /* start of retry loop */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440 do {
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200441 struct request *rq;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700442 int error;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700443
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200444 rq = blk_get_request(drive->queue, write, __GFP_WAIT);
445
446 memcpy(rq->cmd, cmd, BLK_MAX_CDB);
447 rq->cmd_type = REQ_TYPE_ATA_PC;
448 rq->sense = sense;
449 rq->cmd_flags |= cmd_flags;
450 rq->timeout = timeout;
451 if (buffer) {
Tejun Heo02e7cf82009-04-19 07:00:42 +0900452 error = blk_rq_map_kern(drive->queue, rq, buffer,
453 *bufflen, GFP_NOIO);
454 if (error) {
455 blk_put_request(rq);
456 return error;
457 }
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200458 }
459
460 error = blk_execute_rq(drive->queue, info->disk, rq, 0);
461
462 if (buffer)
Tejun Heoc3a4d782009-05-07 22:24:37 +0900463 *bufflen = rq->resid_len;
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200464
465 flags = rq->cmd_flags;
466 blk_put_request(rq);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700467
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200468 /*
469 * FIXME: we should probably abort/retry or something in case of
470 * failure.
471 */
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200472 if (flags & REQ_FAILED) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200473 /*
474 * The request failed. Retry if it was due to a unit
475 * attention status (usually means media was changed).
476 */
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200477 struct request_sense *reqbuf = sense;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700478
479 if (reqbuf->sense_key == UNIT_ATTENTION)
480 cdrom_saw_media_change(drive);
481 else if (reqbuf->sense_key == NOT_READY &&
482 reqbuf->asc == 4 && reqbuf->ascq != 4) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200483 /*
484 * The drive is in the process of loading
485 * a disk. Retry, but wait a little to give
486 * the drive time to complete the load.
487 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700488 ssleep(2);
489 } else {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200490 /* otherwise, don't retry */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700491 retries = 0;
492 }
493 --retries;
494 }
495
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200496 /* end of retry loop */
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200497 } while ((flags & REQ_FAILED) && retries >= 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200499 /* return an error if the command failed */
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200500 return (flags & REQ_FAILED) ? -EIO : 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700501}
502
Borislav Petkov11071282010-07-05 21:23:52 -0700503/*
504 * returns true if rq has been completed
505 */
506static bool ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd)
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200507{
508 unsigned int nr_bytes = cmd->nbytes - cmd->nleft;
509
510 if (cmd->tf_flags & IDE_TFLAG_WRITE)
511 nr_bytes -= cmd->last_xfer_len;
512
Borislav Petkov11071282010-07-05 21:23:52 -0700513 if (nr_bytes > 0) {
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200514 ide_complete_rq(drive, 0, nr_bytes);
Borislav Petkov11071282010-07-05 21:23:52 -0700515 return true;
516 }
517
518 return false;
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200519}
520
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive)
522{
Bartlomiej Zolnierkiewicz23579a22008-04-18 00:46:26 +0200523 ide_hwif_t *hwif = drive->hwif;
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200524 struct ide_cmd *cmd = &hwif->cmd;
Bartlomiej Zolnierkiewiczb65fac32009-01-06 17:20:50 +0100525 struct request *rq = hwif->rq;
Bartlomiej Zolnierkiewicz0041e7c2008-02-01 23:09:28 +0100526 ide_expiry_t *expiry = NULL;
Borislav Petkov8e59bfd2009-04-08 14:12:51 +0200527 int dma_error = 0, dma, thislen, uptodate = 0;
Tejun Heo34b7d2c2009-05-07 22:24:43 +0900528 int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc = 0;
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200529 int sense = (rq->cmd_type == REQ_TYPE_SENSE);
Bartlomiej Zolnierkiewiczff1bfbc12008-02-01 23:09:25 +0100530 unsigned int timeout;
Bartlomiej Zolnierkiewicz18236492008-07-23 19:55:54 +0200531 u16 len;
Borislav Petkov8e59bfd2009-04-08 14:12:51 +0200532 u8 ireason, stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533
Borislav Petkov98036ab2009-04-08 14:12:53 +0200534 ide_debug_log(IDE_DBG_PC, "cmd: 0x%x, write: 0x%x", rq->cmd[0], write);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200535
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200536 /* check for errors */
Borislav Petkov12469ac2008-10-13 21:39:49 +0200537 dma = drive->dma;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700538 if (dma) {
Borislav Petkov12469ac2008-10-13 21:39:49 +0200539 drive->dma = 0;
Bartlomiej Zolnierkiewicz88b41322009-03-31 20:15:22 +0200540 drive->waiting_for_dma = 0;
Bartlomiej Zolnierkiewicz5e37bdc2008-04-26 22:25:24 +0200541 dma_error = hwif->dma_ops->dma_end(drive);
Bartlomiej Zolnierkiewiczf094d4d82009-03-31 20:15:24 +0200542 ide_dma_unmap_sg(drive, cmd);
Bartlomiej Zolnierkiewiczeba15fb2008-02-01 23:09:17 +0100543 if (dma_error) {
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200544 printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name,
Bartlomiej Zolnierkiewiczff1bfbc12008-02-01 23:09:25 +0100545 write ? "write" : "read");
Bartlomiej Zolnierkiewiczeba15fb2008-02-01 23:09:17 +0100546 ide_dma_off(drive);
547 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548 }
549
Borislav Petkov8e59bfd2009-04-08 14:12:51 +0200550 /* check status */
551 stat = hwif->tp_ops->read_status(hwif);
552
553 if (!OK_STAT(stat, 0, BAD_R_STAT)) {
554 rc = cdrom_decode_status(drive, stat);
555 if (rc) {
556 if (rc == 2)
557 goto out_end;
558 return ide_stopped;
559 }
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200560 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700561
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200562 /* using dma, transfer is complete now */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563 if (dma) {
Bartlomiej Zolnierkiewiczeba15fb2008-02-01 23:09:17 +0100564 if (dma_error)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700565 return ide_error(drive, "dma error", stat);
Bartlomiej Zolnierkiewicz4a3d8cf2009-03-31 20:15:15 +0200566 uptodate = 1;
Bartlomiej Zolnierkiewicz984c5e52009-03-31 20:15:03 +0200567 goto out_end;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700568 }
569
Bartlomiej Zolnierkiewicz18236492008-07-23 19:55:54 +0200570 ide_read_bcount_and_ireason(drive, &len, &ireason);
Bartlomiej Zolnierkiewicz0041e7c2008-02-01 23:09:28 +0100571
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200572 thislen = (rq->cmd_type == REQ_TYPE_FS) ? len : cmd->nleft;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700573 if (thislen > len)
574 thislen = len;
575
Borislav Petkov088b1b82009-01-02 13:34:47 +0100576 ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d",
577 stat, thislen);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200578
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200579 /* If DRQ is clear, the command has completed. */
Bartlomiej Zolnierkiewicz3a7d2482008-10-10 22:39:21 +0200580 if ((stat & ATA_DRQ) == 0) {
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200581 if (rq->cmd_type == REQ_TYPE_FS) {
Bartlomiej Zolnierkiewicz0041e7c2008-02-01 23:09:28 +0100582 /*
583 * If we're not done reading/writing, complain.
584 * Otherwise, complete the command normally.
585 */
586 uptodate = 1;
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200587 if (cmd->nleft > 0) {
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200588 printk(KERN_ERR PFX "%s: %s: data underrun "
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200589 "(%u bytes)\n", drive->name, __func__,
590 cmd->nleft);
Bartlomiej Zolnierkiewicz0041e7c2008-02-01 23:09:28 +0100591 if (!write)
592 rq->cmd_flags |= REQ_FAILED;
593 uptodate = 0;
594 }
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200595 } else if (rq->cmd_type != REQ_TYPE_BLOCK_PC) {
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200596 ide_cd_request_sense_fixup(drive, cmd);
Borislav Petkov9c72ebe2009-06-26 11:22:37 -0700597
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200598 uptodate = cmd->nleft ? 0 : 1;
Borislav Petkov9c72ebe2009-06-26 11:22:37 -0700599
600 /*
601 * suck out the remaining bytes from the drive in an
602 * attempt to complete the data xfer. (see BZ#13399)
603 */
604 if (!(stat & ATA_ERR) && !uptodate && thislen) {
605 ide_pio_bytes(drive, cmd, write, thislen);
606 uptodate = cmd->nleft ? 0 : 1;
607 }
608
609 if (!uptodate)
Bartlomiej Zolnierkiewicz984c5e52009-03-31 20:15:03 +0200610 rq->cmd_flags |= REQ_FAILED;
Bartlomiej Zolnierkiewiczff1bfbc12008-02-01 23:09:25 +0100611 }
Bartlomiej Zolnierkiewicz984c5e52009-03-31 20:15:03 +0200612 goto out_end;
Kiyoshi Uedaaaa04c22007-12-11 17:51:23 -0500613 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700614
Borislav Petkov103f7032009-04-26 10:39:07 +0200615 rc = ide_check_ireason(drive, rq, len, ireason, write);
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200616 if (rc)
617 goto out_end;
Bartlomiej Zolnierkiewicz0041e7c2008-02-01 23:09:28 +0100618
Bartlomiej Zolnierkiewicz06a449e2009-03-31 20:15:13 +0200619 cmd->last_xfer_len = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700620
Borislav Petkov088b1b82009-01-02 13:34:47 +0100621 ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, "
622 "ireason: 0x%x",
623 rq->cmd_type, ireason);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200624
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200625 /* transfer data */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626 while (thislen > 0) {
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200627 int blen = min_t(int, thislen, cmd->nleft);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628
Bartlomiej Zolnierkiewicz14fa91c2009-03-31 20:15:16 +0200629 if (cmd->nleft == 0)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700631
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200632 ide_pio_bytes(drive, cmd, write, blen);
633 cmd->last_xfer_len += blen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634
635 thislen -= blen;
636 len -= blen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200638 if (sense && write == 0)
Andreas Schwabbcd88ac2008-02-26 21:50:35 +0100639 rq->sense_len += blen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700640 }
641
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200642 /* pad, if necessary */
Bartlomiej Zolnierkiewicz14fa91c2009-03-31 20:15:16 +0200643 if (len > 0) {
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200644 if (rq->cmd_type != REQ_TYPE_FS || write == 0)
Bartlomiej Zolnierkiewicz14fa91c2009-03-31 20:15:16 +0200645 ide_pad_transfer(drive, write, len);
646 else {
647 printk(KERN_ERR PFX "%s: confused, missing data\n",
648 drive->name);
649 blk_dump_rq_flags(rq, "cdrom_newpc_intr");
650 }
651 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700652
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200653 if (rq->cmd_type == REQ_TYPE_BLOCK_PC) {
Bartlomiej Zolnierkiewiczff1bfbc12008-02-01 23:09:25 +0100654 timeout = rq->timeout;
Bartlomiej Zolnierkiewiczff1bfbc12008-02-01 23:09:25 +0100655 } else {
656 timeout = ATAPI_WAIT_PC;
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200657 if (rq->cmd_type != REQ_TYPE_FS)
Borislav Petkov4cad0852009-01-02 16:12:53 +0100658 expiry = ide_cd_expiry;
Bartlomiej Zolnierkiewiczff1bfbc12008-02-01 23:09:25 +0100659 }
660
Bartlomiej Zolnierkiewicz60c0cd02009-03-27 12:46:46 +0100661 hwif->expiry = expiry;
662 ide_set_handler(drive, cdrom_newpc_intr, timeout);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663 return ide_started;
Bartlomiej Zolnierkiewiczff1bfbc12008-02-01 23:09:25 +0100664
Bartlomiej Zolnierkiewicz984c5e52009-03-31 20:15:03 +0200665out_end:
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200666 if (rq->cmd_type == REQ_TYPE_BLOCK_PC && rc == 0) {
Tejun Heo5f49f632009-05-19 18:33:05 +0900667 rq->resid_len = 0;
Tejun Heo34b7d2c2009-05-07 22:24:43 +0900668 blk_end_request_all(rq, 0);
Bartlomiej Zolnierkiewiczb65fac32009-01-06 17:20:50 +0100669 hwif->rq = NULL;
Bartlomiej Zolnierkiewiczff1bfbc12008-02-01 23:09:25 +0100670 } else {
Bartlomiej Zolnierkiewiczf63174e2009-03-31 20:15:04 +0200671 if (sense && uptodate)
672 ide_cd_complete_failed_rq(drive, rq);
673
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200674 if (rq->cmd_type == REQ_TYPE_FS) {
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200675 if (cmd->nleft == 0)
Bartlomiej Zolnierkiewiczf63174e2009-03-31 20:15:04 +0200676 uptodate = 1;
677 } else {
678 if (uptodate <= 0 && rq->errors == 0)
679 rq->errors = -EIO;
680 }
681
Rainer Weikusat39c58f32009-06-18 17:04:00 +0200682 if (uptodate == 0 && rq->bio)
Borislav Petkov11071282010-07-05 21:23:52 -0700683 if (ide_cd_error_cmd(drive, cmd))
684 return ide_stopped;
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200685
Bartlomiej Zolnierkiewiczf63174e2009-03-31 20:15:04 +0200686 /* make sure it's fully ended */
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200687 if (rq->cmd_type != REQ_TYPE_FS) {
Tejun Heo5f49f632009-05-19 18:33:05 +0900688 rq->resid_len -= cmd->nbytes - cmd->nleft;
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200689 if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE))
Tejun Heoc3a4d782009-05-07 22:24:37 +0900690 rq->resid_len += cmd->last_xfer_len;
Bartlomiej Zolnierkiewiczc7ec8992009-03-31 20:15:15 +0200691 }
692
Tejun Heo34b7d2c2009-05-07 22:24:43 +0900693 ide_complete_rq(drive, uptodate ? 0 : -EIO, blk_rq_bytes(rq));
Bartlomiej Zolnierkiewiczf63174e2009-03-31 20:15:04 +0200694
Bartlomiej Zolnierkiewicz8a116972009-03-31 20:15:03 +0200695 if (sense && rc == 2)
696 ide_error(drive, "request sense failure", stat);
Bartlomiej Zolnierkiewiczff1bfbc12008-02-01 23:09:25 +0100697 }
698 return ide_stopped;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700699}
700
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100701static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700702{
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100703 struct cdrom_info *cd = drive->driver_data;
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200704 struct request_queue *q = drive->queue;
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100705 int write = rq_data_dir(rq) == WRITE;
706 unsigned short sectors_per_frame =
Martin K. Petersene1defc42009-05-22 17:17:49 -0400707 queue_logical_block_size(q) >> SECTOR_BITS;
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100708
Bartlomiej Zolnierkiewicz8652b312009-03-31 20:15:14 +0200709 ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, "
Borislav Petkov088b1b82009-01-02 13:34:47 +0100710 "secs_per_frame: %u",
Bartlomiej Zolnierkiewicz8652b312009-03-31 20:15:14 +0200711 rq->cmd[0], rq->cmd_flags, sectors_per_frame);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200712
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100713 if (write) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200714 /* disk has become write protected */
Bartlomiej Zolnierkiewicze0458cc2009-03-31 20:15:02 +0200715 if (get_disk_ro(cd->disk))
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100716 return ide_stopped;
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100717 } else {
718 /*
719 * We may be retrying this request after an error. Fix up any
720 * weirdness which might be present in the request packet.
721 */
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200722 q->prep_rq_fn(q, rq);
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100723 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200725 /* fs requests *must* be hardware frame aligned */
Tejun Heo9780e2d2009-05-07 22:24:40 +0900726 if ((blk_rq_sectors(rq) & (sectors_per_frame - 1)) ||
727 (blk_rq_pos(rq) & (sectors_per_frame - 1)))
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200728 return ide_stopped;
729
730 /* use DMA, if possible */
731 drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700732
Bartlomiej Zolnierkiewicz21ea1f02008-02-01 23:09:27 +0100733 if (write)
734 cd->devinfo.media_written = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735
Bartlomiej Zolnierkiewicz8652b312009-03-31 20:15:14 +0200736 rq->timeout = ATAPI_WAIT_PC;
737
Borislav Petkovb6ca4402008-07-16 20:33:46 +0200738 return ide_started;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700739}
740
Borislav Petkovb6ca4402008-07-16 20:33:46 +0200741static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700742{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743
Borislav Petkov088b1b82009-01-02 13:34:47 +0100744 ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x",
745 rq->cmd[0], rq->cmd_type);
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200746
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200747 if (rq->cmd_type == REQ_TYPE_BLOCK_PC)
Bartlomiej Zolnierkiewiczc9f56a82008-02-01 23:09:26 +0100748 rq->cmd_flags |= REQ_QUIET;
749 else
750 rq->cmd_flags &= ~REQ_FAILED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700751
Borislav Petkov12469ac2008-10-13 21:39:49 +0200752 drive->dma = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700753
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200754 /* sg request */
Tejun Heo02e7cf82009-04-19 07:00:42 +0900755 if (rq->bio) {
FUJITA Tomonorie5318b52008-07-16 20:33:35 +0200756 struct request_queue *q = drive->queue;
Tejun Heo02e7cf82009-04-19 07:00:42 +0900757 char *buf = bio_data(rq->bio);
FUJITA Tomonorie5318b52008-07-16 20:33:35 +0200758 unsigned int alignment;
FUJITA Tomonorie5318b52008-07-16 20:33:35 +0200759
Borislav Petkov12469ac2008-10-13 21:39:49 +0200760 drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761
762 /*
763 * check if dma is safe
Linus Torvalds5d9e4ea2005-05-27 07:36:17 -0700764 *
765 * NOTE! The "len" and "addr" checks should possibly have
766 * separate masks.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700767 */
FUJITA Tomonorie5318b52008-07-16 20:33:35 +0200768 alignment = queue_dma_alignment(q) | q->dma_pad_mask;
Borislav Petkov9bd27cb2008-11-02 21:40:07 +0100769 if ((unsigned long)buf & alignment
Tejun Heo34b7d2c2009-05-07 22:24:43 +0900770 || blk_rq_bytes(rq) & q->dma_pad_mask
FUJITA Tomonoriefa402d2008-10-10 22:39:22 +0200771 || object_is_on_stack(buf))
Borislav Petkov12469ac2008-10-13 21:39:49 +0200772 drive->dma = 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700774}
775
Borislav Petkov99384ae2008-07-16 20:33:45 +0200776static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq,
Borislav Petkove5e076a2008-04-26 22:25:15 +0200777 sector_t block)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778{
Bartlomiej Zolnierkiewiczb788ee92009-03-27 12:46:46 +0100779 struct ide_cmd cmd;
Connor Hansen3307d0d2011-06-11 15:06:48 -0700780 int uptodate = 0;
781 unsigned int nsectors;
Bartlomiej Zolnierkiewiczb788ee92009-03-27 12:46:46 +0100782
Borislav Petkov088b1b82009-01-02 13:34:47 +0100783 ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu",
784 rq->cmd[0], (unsigned long long)block);
785
786 if (drive->debug_mask & IDE_DBG_RQ)
787 blk_dump_rq_flags(rq, "ide_cd_do_request");
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200788
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200789 switch (rq->cmd_type) {
790 case REQ_TYPE_FS:
Bartlomiej Zolnierkiewicz8652b312009-03-31 20:15:14 +0200791 if (cdrom_start_rw(drive, rq) == ide_stopped)
Bartlomiej Zolnierkiewicze0458cc2009-03-31 20:15:02 +0200792 goto out_end;
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200793 break;
794 case REQ_TYPE_SENSE:
795 case REQ_TYPE_BLOCK_PC:
796 case REQ_TYPE_ATA_PC:
Borislav Petkov7fcebda2008-07-16 20:33:46 +0200797 if (!rq->timeout)
798 rq->timeout = ATAPI_WAIT_PC;
799
Borislav Petkovb6ca4402008-07-16 20:33:46 +0200800 cdrom_do_block_pc(drive, rq);
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200801 break;
802 case REQ_TYPE_SPECIAL:
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200803 /* right now this can only be a reset... */
Bartlomiej Zolnierkiewicze0458cc2009-03-31 20:15:02 +0200804 uptodate = 1;
805 goto out_end;
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200806 default:
Bartlomiej Zolnierkiewicz2c7eaa42009-06-15 22:16:10 +0200807 BUG();
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200808 }
Borislav Petkovb6ca4402008-07-16 20:33:46 +0200809
Borislav Petkovc457ce82009-04-19 07:00:42 +0900810 /* prepare sense request for this command */
811 ide_prep_sense(drive, rq);
812
Bartlomiej Zolnierkiewiczb788ee92009-03-27 12:46:46 +0100813 memset(&cmd, 0, sizeof(cmd));
814
815 if (rq_data_dir(rq))
816 cmd.tf_flags |= IDE_TFLAG_WRITE;
817
818 cmd.rq = rq;
819
Christoph Hellwig33659eb2010-08-07 18:17:56 +0200820 if (rq->cmd_type == REQ_TYPE_FS || blk_rq_bytes(rq)) {
Tejun Heo34b7d2c2009-05-07 22:24:43 +0900821 ide_init_sg_cmd(&cmd, blk_rq_bytes(rq));
Bartlomiej Zolnierkiewicza08915b2009-03-31 20:15:13 +0200822 ide_map_sg(drive, &cmd);
823 }
824
Bartlomiej Zolnierkiewiczb788ee92009-03-27 12:46:46 +0100825 return ide_issue_pc(drive, &cmd);
Bartlomiej Zolnierkiewicze0458cc2009-03-31 20:15:02 +0200826out_end:
Tejun Heo5b936292009-05-07 22:24:38 +0900827 nsectors = blk_rq_sectors(rq);
Bartlomiej Zolnierkiewiczf63174e2009-03-31 20:15:04 +0200828
829 if (nsectors == 0)
830 nsectors = 1;
831
832 ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9);
833
Bartlomiej Zolnierkiewicze0458cc2009-03-31 20:15:02 +0200834 return ide_stopped;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835}
836
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200837/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700838 * Ioctl handling.
839 *
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200840 * Routines which queue packet commands take as a final argument a pointer to a
841 * request_sense struct. If execution of the command results in an error with a
842 * CHECK CONDITION status, this structure will be filled with the results of the
843 * subsequent request sense command. The pointer can also be NULL, in which case
844 * no sense information is returned.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845 */
Borislav Petkove5e076a2008-04-26 22:25:15 +0200846static void msf_from_bcd(struct atapi_msf *msf)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700847{
Adrian Bunkfc99856a2008-08-18 21:40:04 +0200848 msf->minute = bcd2bin(msf->minute);
849 msf->second = bcd2bin(msf->second);
850 msf->frame = bcd2bin(msf->frame);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851}
852
Borislav Petkovf9afd182008-02-01 23:09:29 +0100853int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700855 struct cdrom_info *info = drive->driver_data;
856 struct cdrom_device_info *cdi = &info->devinfo;
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200857 unsigned char cmd[BLK_MAX_CDB];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700858
Borislav Petkov088b1b82009-01-02 13:34:47 +0100859 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200860
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200861 memset(cmd, 0, BLK_MAX_CDB);
862 cmd[0] = GPCMD_TEST_UNIT_READY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700863
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +0100864 /*
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200865 * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs
866 * instead of supporting the LOAD_UNLOAD opcode.
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +0100867 */
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200868 cmd[7] = cdi->sanyo_slot % 3;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700869
Harvey Harrison141d3b22008-07-23 19:56:02 +0200870 return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700871}
872
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity,
874 unsigned long *sectors_per_frame,
875 struct request_sense *sense)
876{
877 struct {
Harvey Harrison141d3b22008-07-23 19:56:02 +0200878 __be32 lba;
879 __be32 blocklen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700880 } capbuf;
881
882 int stat;
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200883 unsigned char cmd[BLK_MAX_CDB];
884 unsigned len = sizeof(capbuf);
Petr Tesarik938bb032008-08-05 18:17:02 +0200885 u32 blocklen;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700886
Borislav Petkov088b1b82009-01-02 13:34:47 +0100887 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200888
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200889 memset(cmd, 0, BLK_MAX_CDB);
890 cmd[0] = GPCMD_READ_CDVD_CAPACITY;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700891
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200892 stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0,
893 REQ_QUIET);
Jens Axboee8e7b9e2008-07-24 22:53:35 +0200894 if (stat)
895 return stat;
896
897 /*
David S. Milleraf054ed2009-06-23 16:01:06 -0700898 * Sanity check the given block size, in so far as making
899 * sure the sectors_per_frame we give to the caller won't
900 * end up being bogus.
Jens Axboee8e7b9e2008-07-24 22:53:35 +0200901 */
Petr Tesarik938bb032008-08-05 18:17:02 +0200902 blocklen = be32_to_cpu(capbuf.blocklen);
David S. Milleraf054ed2009-06-23 16:01:06 -0700903 blocklen = (blocklen >> SECTOR_BITS) << SECTOR_BITS;
Petr Tesarik938bb032008-08-05 18:17:02 +0200904 switch (blocklen) {
905 case 512:
906 case 1024:
907 case 2048:
908 case 4096:
Jens Axboee8e7b9e2008-07-24 22:53:35 +0200909 break;
910 default:
Frans Popd9ae6242009-06-23 16:02:58 -0700911 printk_once(KERN_ERR PFX "%s: weird block size %u; "
912 "setting default block size to 2048\n",
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200913 drive->name, blocklen);
Petr Tesarik938bb032008-08-05 18:17:02 +0200914 blocklen = 2048;
Jens Axboee8e7b9e2008-07-24 22:53:35 +0200915 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700916 }
917
Jens Axboee8e7b9e2008-07-24 22:53:35 +0200918 *capacity = 1 + be32_to_cpu(capbuf.lba);
Petr Tesarik938bb032008-08-05 18:17:02 +0200919 *sectors_per_frame = blocklen >> SECTOR_BITS;
Borislav Petkov71b429ca2008-10-17 18:09:14 +0200920
Borislav Petkov088b1b82009-01-02 13:34:47 +0100921 ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu",
922 *capacity, *sectors_per_frame);
Borislav Petkov71b429ca2008-10-17 18:09:14 +0200923
Jens Axboee8e7b9e2008-07-24 22:53:35 +0200924 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925}
926
927static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag,
928 int format, char *buf, int buflen,
929 struct request_sense *sense)
930{
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200931 unsigned char cmd[BLK_MAX_CDB];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700932
Borislav Petkov088b1b82009-01-02 13:34:47 +0100933 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200934
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200935 memset(cmd, 0, BLK_MAX_CDB);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700936
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200937 cmd[0] = GPCMD_READ_TOC_PMA_ATIP;
938 cmd[6] = trackno;
939 cmd[7] = (buflen >> 8);
940 cmd[8] = (buflen & 0xff);
941 cmd[9] = (format << 6);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942
943 if (msf_flag)
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200944 cmd[1] = 2;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700945
FUJITA Tomonori5f828542008-07-15 21:21:42 +0200946 return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700947}
948
Linus Torvalds1da177e2005-04-16 15:20:36 -0700949/* Try to read the entire TOC for the disk into our internal buffer. */
Bartlomiej Zolnierkiewicz17802992008-02-01 23:09:25 +0100950int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951{
952 int stat, ntracks, i;
953 struct cdrom_info *info = drive->driver_data;
954 struct cdrom_device_info *cdi = &info->devinfo;
955 struct atapi_toc *toc = info->toc;
956 struct {
957 struct atapi_toc_header hdr;
958 struct atapi_toc_entry ent;
959 } ms_tmp;
960 long last_written;
961 unsigned long sectors_per_frame = SECTORS_PER_FRAME;
962
Borislav Petkov088b1b82009-01-02 13:34:47 +0100963 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200964
Linus Torvalds1da177e2005-04-16 15:20:36 -0700965 if (toc == NULL) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200966 /* try to allocate space */
Jesper Juhl2a91f3e2005-10-30 15:02:45 -0800967 toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700968 if (toc == NULL) {
Borislav Petkovfc8323f2008-10-13 21:39:48 +0200969 printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n",
Borislav Petkov83c85652008-04-26 22:25:15 +0200970 drive->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971 return -ENOMEM;
972 }
Jesper Juhl2a91f3e2005-10-30 15:02:45 -0800973 info->toc = toc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974 }
975
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200976 /*
977 * Check to see if the existing data is still valid. If it is,
978 * just return.
979 */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700980 (void) cdrom_check_status(drive, sense);
981
Borislav Petkov570f89e2008-07-23 19:56:02 +0200982 if (drive->atapi_flags & IDE_AFLAG_TOC_VALID)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983 return 0;
984
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200985 /* try to get the total cdrom capacity and sector size */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986 stat = cdrom_read_capacity(drive, &toc->capacity, &sectors_per_frame,
987 sense);
988 if (stat)
989 toc->capacity = 0x1fffff;
990
991 set_capacity(info->disk, toc->capacity * sectors_per_frame);
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200992 /* save a private copy of the TOC capacity for error handling */
Alan Coxdbe217a2006-06-25 05:47:44 -0700993 drive->probed_capacity = toc->capacity * sectors_per_frame;
994
Martin K. Petersene1defc42009-05-22 17:17:49 -0400995 blk_queue_logical_block_size(drive->queue,
996 sectors_per_frame << SECTOR_BITS);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700997
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +0200998 /* first read just the header, so we know how long the TOC is */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999 stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr,
1000 sizeof(struct atapi_toc_header), sense);
Jesper Juhl2a91f3e2005-10-30 15:02:45 -08001001 if (stat)
1002 return stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003
Borislav Petkov570f89e2008-07-23 19:56:02 +02001004 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
Adrian Bunkfc99856a2008-08-18 21:40:04 +02001005 toc->hdr.first_track = bcd2bin(toc->hdr.first_track);
1006 toc->hdr.last_track = bcd2bin(toc->hdr.last_track);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001007 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001008
1009 ntracks = toc->hdr.last_track - toc->hdr.first_track + 1;
1010 if (ntracks <= 0)
1011 return -EIO;
1012 if (ntracks > MAX_TRACKS)
1013 ntracks = MAX_TRACKS;
1014
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001015 /* now read the whole schmeer */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001016 stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0,
1017 (char *)&toc->hdr,
1018 sizeof(struct atapi_toc_header) +
1019 (ntracks + 1) *
1020 sizeof(struct atapi_toc_entry), sense);
1021
1022 if (stat && toc->hdr.first_track > 1) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001023 /*
1024 * Cds with CDI tracks only don't have any TOC entries, despite
1025 * of this the returned values are
1026 * first_track == last_track = number of CDI tracks + 1,
1027 * so that this case is indistinguishable from the same layout
1028 * plus an additional audio track. If we get an error for the
1029 * regular case, we assume a CDI without additional audio
1030 * tracks. In this case the readable TOC is empty (CDI tracks
1031 * are not included) and only holds the Leadout entry.
1032 *
1033 * Heiko Eißfeldt.
1034 */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001035 ntracks = 0;
1036 stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0,
1037 (char *)&toc->hdr,
1038 sizeof(struct atapi_toc_header) +
1039 (ntracks + 1) *
1040 sizeof(struct atapi_toc_entry),
1041 sense);
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +01001042 if (stat)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001043 return stat;
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +01001044
Borislav Petkov570f89e2008-07-23 19:56:02 +02001045 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
Adrian Bunkfc99856a2008-08-18 21:40:04 +02001046 toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT);
1047 toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT);
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +01001048 } else {
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049 toc->hdr.first_track = CDROM_LEADOUT;
1050 toc->hdr.last_track = CDROM_LEADOUT;
1051 }
1052 }
1053
1054 if (stat)
1055 return stat;
1056
Borislav Petkov7eb43fd2008-02-11 00:32:13 +01001057 toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058
Borislav Petkov570f89e2008-07-23 19:56:02 +02001059 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) {
Adrian Bunkfc99856a2008-08-18 21:40:04 +02001060 toc->hdr.first_track = bcd2bin(toc->hdr.first_track);
1061 toc->hdr.last_track = bcd2bin(toc->hdr.last_track);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001062 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001063
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +01001064 for (i = 0; i <= ntracks; i++) {
Borislav Petkov570f89e2008-07-23 19:56:02 +02001065 if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {
1066 if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD)
Adrian Bunkfc99856a2008-08-18 21:40:04 +02001067 toc->ent[i].track = bcd2bin(toc->ent[i].track);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001068 msf_from_bcd(&toc->ent[i].addr.msf);
1069 }
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001070 toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute,
1071 toc->ent[i].addr.msf.second,
1072 toc->ent[i].addr.msf.frame);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001073 }
1074
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075 if (toc->hdr.first_track != CDROM_LEADOUT) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001076 /* read the multisession information */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001077 stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp,
1078 sizeof(ms_tmp), sense);
Jesper Juhl2a91f3e2005-10-30 15:02:45 -08001079 if (stat)
1080 return stat;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001081
1082 toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba);
1083 } else {
Borislav Petkove5e076a2008-04-26 22:25:15 +02001084 ms_tmp.hdr.last_track = CDROM_LEADOUT;
1085 ms_tmp.hdr.first_track = ms_tmp.hdr.last_track;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001086 toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */
1087 }
1088
Borislav Petkov570f89e2008-07-23 19:56:02 +02001089 if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) {
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001090 /* re-read multisession information using MSF format */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001091 stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp,
1092 sizeof(ms_tmp), sense);
1093 if (stat)
1094 return stat;
1095
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001096 msf_from_bcd(&ms_tmp.ent.addr.msf);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097 toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute,
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001098 ms_tmp.ent.addr.msf.second,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001099 ms_tmp.ent.addr.msf.frame);
1100 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001101
1102 toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track);
1103
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001104 /* now try to get the total cdrom capacity */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001105 stat = cdrom_get_last_written(cdi, &last_written);
1106 if (!stat && (last_written > toc->capacity)) {
1107 toc->capacity = last_written;
1108 set_capacity(info->disk, toc->capacity * sectors_per_frame);
Alan Coxdbe217a2006-06-25 05:47:44 -07001109 drive->probed_capacity = toc->capacity * sectors_per_frame;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001110 }
1111
1112 /* Remember that we've read this stuff. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001113 drive->atapi_flags |= IDE_AFLAG_TOC_VALID;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001114
1115 return 0;
1116}
1117
Bartlomiej Zolnierkiewicz17802992008-02-01 23:09:25 +01001118int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf)
Eric Piel9235e682005-06-23 00:10:29 -07001119{
1120 struct cdrom_info *info = drive->driver_data;
1121 struct cdrom_device_info *cdi = &info->devinfo;
1122 struct packet_command cgc;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001123 int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE;
Eric Piel9235e682005-06-23 00:10:29 -07001124
Borislav Petkov088b1b82009-01-02 13:34:47 +01001125 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001126
Borislav Petkov570f89e2008-07-23 19:56:02 +02001127 if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0)
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001128 size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE;
Eric Piel9235e682005-06-23 00:10:29 -07001129
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001130 init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN);
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001131 do {
1132 /* we seem to get stat=0x01,err=0x00 the first time (??) */
Eric Piel9235e682005-06-23 00:10:29 -07001133 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0);
1134 if (!stat)
1135 break;
1136 } while (--attempts);
1137 return stat;
1138}
1139
Bartlomiej Zolnierkiewicz17802992008-02-01 23:09:25 +01001140void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf)
Eric Piel9235e682005-06-23 00:10:29 -07001141{
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001142 struct cdrom_info *cd = drive->driver_data;
Bartlomiej Zolnierkiewicz481c8c62008-02-01 23:09:20 +01001143 u16 curspeed, maxspeed;
1144
Borislav Petkov088b1b82009-01-02 13:34:47 +01001145 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001146
Borislav Petkov570f89e2008-07-23 19:56:02 +02001147 if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) {
Harvey Harrison141d3b22008-07-23 19:56:02 +02001148 curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]);
1149 maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]);
Eric Piel9235e682005-06-23 00:10:29 -07001150 } else {
Harvey Harrison141d3b22008-07-23 19:56:02 +02001151 curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]);
1152 maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]);
Eric Piel9235e682005-06-23 00:10:29 -07001153 }
Bartlomiej Zolnierkiewicz481c8c62008-02-01 23:09:20 +01001154
Borislav Petkov088b1b82009-01-02 13:34:47 +01001155 ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u",
1156 curspeed, maxspeed);
Borislav Petkov71b429ca2008-10-17 18:09:14 +02001157
Julia Lawall72db37b2009-08-02 13:19:05 -07001158 cd->current_speed = DIV_ROUND_CLOSEST(curspeed, 176);
1159 cd->max_speed = DIV_ROUND_CLOSEST(maxspeed, 176);
Eric Piel9235e682005-06-23 00:10:29 -07001160}
1161
Bartlomiej Zolnierkiewicz20e7f7e2008-02-01 23:09:20 +01001162#define IDE_CD_CAPABILITIES \
1163 (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \
1164 CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \
1165 CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \
1166 CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \
1167 CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001168
Linus Torvalds1da177e2005-04-16 15:20:36 -07001169static struct cdrom_device_ops ide_cdrom_dops = {
1170 .open = ide_cdrom_open_real,
1171 .release = ide_cdrom_release_real,
1172 .drive_status = ide_cdrom_drive_status,
Tejun Heo5b03a1b2011-03-09 19:54:27 +01001173 .check_events = ide_cdrom_check_events_real,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001174 .tray_move = ide_cdrom_tray_move,
1175 .lock_door = ide_cdrom_lock_door,
1176 .select_speed = ide_cdrom_select_speed,
1177 .get_last_session = ide_cdrom_get_last_session,
1178 .get_mcn = ide_cdrom_get_mcn,
1179 .reset = ide_cdrom_reset,
1180 .audio_ioctl = ide_cdrom_audio_ioctl,
Bartlomiej Zolnierkiewicz20e7f7e2008-02-01 23:09:20 +01001181 .capability = IDE_CD_CAPABILITIES,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001182 .generic_packet = ide_cdrom_packet,
1183};
1184
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001185static int ide_cdrom_register(ide_drive_t *drive, int nslots)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001186{
1187 struct cdrom_info *info = drive->driver_data;
1188 struct cdrom_device_info *devinfo = &info->devinfo;
1189
Borislav Petkov088b1b82009-01-02 13:34:47 +01001190 ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots);
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001191
Linus Torvalds1da177e2005-04-16 15:20:36 -07001192 devinfo->ops = &ide_cdrom_dops;
Bartlomiej Zolnierkiewicz2bc4cf22008-02-01 23:09:22 +01001193 devinfo->speed = info->current_speed;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001194 devinfo->capacity = nslots;
Jesper Juhl2a91f3e2005-10-30 15:02:45 -08001195 devinfo->handle = drive;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001196 strcpy(devinfo->name, drive->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001197
Borislav Petkov570f89e2008-07-23 19:56:02 +02001198 if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT)
Bartlomiej Zolnierkiewicz3cbd8142007-12-24 15:23:43 +01001199 devinfo->mask |= CDC_SELECT_SPEED;
1200
Linus Torvalds1da177e2005-04-16 15:20:36 -07001201 devinfo->disk = info->disk;
1202 return register_cdrom(devinfo);
1203}
1204
Borislav Petkove5e076a2008-04-26 22:25:15 +02001205static int ide_cdrom_probe_capabilities(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206{
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001207 struct cdrom_info *cd = drive->driver_data;
1208 struct cdrom_device_info *cdi = &cd->devinfo;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001209 u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE];
1210 mechtype_t mechtype;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001211 int nslots = 1;
1212
Borislav Petkov088b1b82009-01-02 13:34:47 +01001213 ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx",
1214 drive->media, drive->atapi_flags);
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001215
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001216 cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R |
1217 CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO |
1218 CDC_MO_DRIVE | CDC_RAM);
1219
Linus Torvalds1da177e2005-04-16 15:20:36 -07001220 if (drive->media == ide_optical) {
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001221 cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM);
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001222 printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n",
Borislav Petkov83c85652008-04-26 22:25:15 +02001223 drive->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001224 return nslots;
1225 }
1226
Borislav Petkov570f89e2008-07-23 19:56:02 +02001227 if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) {
1228 drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT;
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001229 cdi->mask &= ~CDC_PLAY_AUDIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001230 return nslots;
1231 }
1232
1233 /*
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001234 * We have to cheat a little here. the packet will eventually be queued
1235 * with ide_cdrom_packet(), which extracts the drive from cdi->handle.
1236 * Since this device hasn't been registered with the Uniform layer yet,
1237 * it can't do this. Same goes for cdi->ops.
Linus Torvalds1da177e2005-04-16 15:20:36 -07001238 */
Jesper Juhl2a91f3e2005-10-30 15:02:45 -08001239 cdi->handle = drive;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001240 cdi->ops = &ide_cdrom_dops;
1241
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001242 if (ide_cdrom_get_capabilities(drive, buf))
Linus Torvalds1da177e2005-04-16 15:20:36 -07001243 return 0;
1244
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001245 if ((buf[8 + 6] & 0x01) == 0)
Bartlomiej Zolnierkiewicz42619d32008-10-17 18:09:11 +02001246 drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001247 if (buf[8 + 6] & 0x08)
Borislav Petkov570f89e2008-07-23 19:56:02 +02001248 drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001249 if (buf[8 + 3] & 0x01)
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001250 cdi->mask &= ~CDC_CD_R;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001251 if (buf[8 + 3] & 0x02)
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001252 cdi->mask &= ~(CDC_CD_RW | CDC_RAM);
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001253 if (buf[8 + 2] & 0x38)
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001254 cdi->mask &= ~CDC_DVD;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001255 if (buf[8 + 3] & 0x20)
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001256 cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM);
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001257 if (buf[8 + 3] & 0x10)
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001258 cdi->mask &= ~CDC_DVD_R;
Borislav Petkov570f89e2008-07-23 19:56:02 +02001259 if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK))
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001260 cdi->mask &= ~CDC_PLAY_AUDIO;
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001261
1262 mechtype = buf[8 + 6] >> 5;
Borislav Petkovf20f2582008-10-05 18:23:27 +02001263 if (mechtype == mechtype_caddy ||
1264 mechtype == mechtype_popup ||
1265 (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE))
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001266 cdi->mask |= CDC_CLOSE_TRAY;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001267
Linus Torvalds1da177e2005-04-16 15:20:36 -07001268 if (cdi->sanyo_slot > 0) {
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001269 cdi->mask &= ~CDC_SELECT_DISC;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001270 nslots = 3;
Bartlomiej Zolnierkiewiczcdf60002008-02-01 23:09:22 +01001271 } else if (mechtype == mechtype_individual_changer ||
1272 mechtype == mechtype_cartridge_changer) {
Bartlomiej Zolnierkiewicz2609d062008-02-01 23:09:19 +01001273 nslots = cdrom_number_of_slots(cdi);
1274 if (nslots > 1)
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001275 cdi->mask &= ~CDC_SELECT_DISC;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001276 }
1277
Bartlomiej Zolnierkiewicz455d80a2008-02-01 23:09:21 +01001278 ide_cdrom_update_speed(drive, buf);
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001279
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001280 printk(KERN_INFO PFX "%s: ATAPI", drive->name);
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001281
1282 /* don't print speed if the drive reported 0 */
Bartlomiej Zolnierkiewicz2bc4cf22008-02-01 23:09:22 +01001283 if (cd->max_speed)
1284 printk(KERN_CONT " %dX", cd->max_speed);
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001285
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001286 printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001287
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001288 if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0)
1289 printk(KERN_CONT " DVD%s%s",
1290 (cdi->mask & CDC_DVD_R) ? "" : "-R",
Borislav Petkov419a5b62008-10-17 18:09:14 +02001291 (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001292
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001293 if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0)
1294 printk(KERN_CONT " CD%s%s",
1295 (cdi->mask & CDC_CD_R) ? "" : "-R",
1296 (cdi->mask & CDC_CD_RW) ? "" : "/RW");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001297
Bartlomiej Zolnierkiewicz3f1b86d2008-02-01 23:09:20 +01001298 if ((cdi->mask & CDC_SELECT_DISC) == 0)
1299 printk(KERN_CONT " changer w/%d slots", nslots);
1300 else
1301 printk(KERN_CONT " drive");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001302
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001303 printk(KERN_CONT ", %dkB Cache\n",
1304 be16_to_cpup((__be16 *)&buf[8 + 12]));
Linus Torvalds1da177e2005-04-16 15:20:36 -07001305
1306 return nslots;
1307}
1308
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001309/* standard prep_rq_fn that builds 10 byte cmds */
Jens Axboe165125e2007-07-24 09:28:11 +02001310static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001311{
Martin K. Petersene1defc42009-05-22 17:17:49 -04001312 int hard_sect = queue_logical_block_size(q);
Tejun Heo5b936292009-05-07 22:24:38 +09001313 long block = (long)blk_rq_pos(rq) / (hard_sect >> 9);
1314 unsigned long blocks = blk_rq_sectors(rq) / (hard_sect >> 9);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001315
FUJITA Tomonorid34c87e2008-04-29 14:37:52 +02001316 memset(rq->cmd, 0, BLK_MAX_CDB);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001317
1318 if (rq_data_dir(rq) == READ)
1319 rq->cmd[0] = GPCMD_READ_10;
1320 else
1321 rq->cmd[0] = GPCMD_WRITE_10;
1322
1323 /*
1324 * fill in lba
1325 */
1326 rq->cmd[2] = (block >> 24) & 0xff;
1327 rq->cmd[3] = (block >> 16) & 0xff;
1328 rq->cmd[4] = (block >> 8) & 0xff;
1329 rq->cmd[5] = block & 0xff;
1330
1331 /*
1332 * and transfer length
1333 */
1334 rq->cmd[7] = (blocks >> 8) & 0xff;
1335 rq->cmd[8] = blocks & 0xff;
1336 rq->cmd_len = 10;
1337 return BLKPREP_OK;
1338}
1339
1340/*
1341 * Most of the SCSI commands are supported directly by ATAPI devices.
1342 * This transform handles the few exceptions.
1343 */
1344static int ide_cdrom_prep_pc(struct request *rq)
1345{
1346 u8 *c = rq->cmd;
1347
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001348 /* transform 6-byte read/write commands to the 10-byte version */
Linus Torvalds1da177e2005-04-16 15:20:36 -07001349 if (c[0] == READ_6 || c[0] == WRITE_6) {
1350 c[8] = c[4];
1351 c[5] = c[3];
1352 c[4] = c[2];
1353 c[3] = c[1] & 0x1f;
1354 c[2] = 0;
1355 c[1] &= 0xe0;
1356 c[0] += (READ_10 - READ_6);
1357 rq->cmd_len = 10;
1358 return BLKPREP_OK;
1359 }
1360
1361 /*
1362 * it's silly to pretend we understand 6-byte sense commands, just
1363 * reject with ILLEGAL_REQUEST and the caller should take the
1364 * appropriate action
1365 */
1366 if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) {
1367 rq->errors = ILLEGAL_REQUEST;
1368 return BLKPREP_KILL;
1369 }
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001370
Linus Torvalds1da177e2005-04-16 15:20:36 -07001371 return BLKPREP_OK;
1372}
1373
Jens Axboe165125e2007-07-24 09:28:11 +02001374static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001375{
Christoph Hellwig33659eb2010-08-07 18:17:56 +02001376 if (rq->cmd_type == REQ_TYPE_FS)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001377 return ide_cdrom_prep_fs(q, rq);
Christoph Hellwig33659eb2010-08-07 18:17:56 +02001378 else if (rq->cmd_type == REQ_TYPE_BLOCK_PC)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001379 return ide_cdrom_prep_pc(rq);
1380
1381 return 0;
1382}
1383
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001384struct cd_list_entry {
1385 const char *id_model;
1386 const char *id_firmware;
1387 unsigned int cd_flags;
1388};
1389
Borislav Petkov5e657a92008-04-26 22:25:15 +02001390#ifdef CONFIG_IDE_PROC_FS
1391static sector_t ide_cdrom_capacity(ide_drive_t *drive)
1392{
1393 unsigned long capacity, sectors_per_frame;
1394
1395 if (cdrom_read_capacity(drive, &capacity, &sectors_per_frame, NULL))
1396 return 0;
1397
1398 return capacity * sectors_per_frame;
1399}
1400
Alexey Dobriyan6d703a82009-09-01 17:52:57 -07001401static int idecd_capacity_proc_show(struct seq_file *m, void *v)
Borislav Petkov5e657a92008-04-26 22:25:15 +02001402{
Alexey Dobriyan6d703a82009-09-01 17:52:57 -07001403 ide_drive_t *drive = m->private;
Borislav Petkov5e657a92008-04-26 22:25:15 +02001404
Alexey Dobriyan6d703a82009-09-01 17:52:57 -07001405 seq_printf(m, "%llu\n", (long long)ide_cdrom_capacity(drive));
1406 return 0;
Borislav Petkov5e657a92008-04-26 22:25:15 +02001407}
1408
Alexey Dobriyan6d703a82009-09-01 17:52:57 -07001409static int idecd_capacity_proc_open(struct inode *inode, struct file *file)
1410{
Al Virod9dda782013-03-31 18:16:14 -04001411 return single_open(file, idecd_capacity_proc_show, PDE_DATA(inode));
Alexey Dobriyan6d703a82009-09-01 17:52:57 -07001412}
1413
1414static const struct file_operations idecd_capacity_proc_fops = {
1415 .owner = THIS_MODULE,
1416 .open = idecd_capacity_proc_open,
1417 .read = seq_read,
1418 .llseek = seq_lseek,
1419 .release = single_release,
1420};
1421
Borislav Petkov5e657a92008-04-26 22:25:15 +02001422static ide_proc_entry_t idecd_proc[] = {
Alexey Dobriyan6d703a82009-09-01 17:52:57 -07001423 { "capacity", S_IFREG|S_IRUGO, &idecd_capacity_proc_fops },
1424 {}
Borislav Petkov5e657a92008-04-26 22:25:15 +02001425};
1426
Bartlomiej Zolnierkiewicz79cb3802008-10-17 18:09:13 +02001427static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive)
1428{
1429 return idecd_proc;
1430}
1431
1432static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive)
1433{
Bartlomiej Zolnierkiewicz519d6802008-12-29 20:27:38 +01001434 return NULL;
Bartlomiej Zolnierkiewicz79cb3802008-10-17 18:09:13 +02001435}
Borislav Petkov5e657a92008-04-26 22:25:15 +02001436#endif
1437
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001438static const struct cd_list_entry ide_cd_quirks_list[] = {
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001439 /* SCR-3231 doesn't support the SET_CD_SPEED command. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001440 { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001441 /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001442 { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD |
1443 IDE_AFLAG_PRE_ATAPI12, },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001444 /* Vertos 300, some versions of this drive like to talk BCD. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001445 { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001446 /* Vertos 600 ESD. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001447 { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001448 /*
1449 * Sanyo 3 CD changer uses a non-standard command for CD changing
1450 * (by default standard ATAPI support for CD changers is used).
1451 */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001452 { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD },
1453 { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD },
1454 { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001455 /* Stingray 8X CD-ROM. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001456 { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001457 /*
1458 * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length
1459 * mode sense page capabilities size, but older drives break.
1460 */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001461 { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE },
1462 { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001463 /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001464 { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001465 /*
1466 * Some drives used by Apple don't advertise audio play
1467 * but they do support reading TOC & audio datas.
1468 */
Borislav Petkov570f89e2008-07-23 19:56:02 +02001469 { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1470 { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1471 { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1472 { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
1473 { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
Bodo Eggertf3e85ee2008-10-05 18:23:28 +02001474 { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK },
Borislav Petkovf20f2582008-10-05 18:23:27 +02001475 { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE },
Márton Németh64c2eae2008-10-23 23:22:09 +02001476 { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE },
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001477 { NULL, NULL, 0 }
1478};
1479
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +02001480static unsigned int ide_cd_flags(u16 *id)
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001481{
1482 const struct cd_list_entry *cle = ide_cd_quirks_list;
1483
1484 while (cle->id_model) {
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +02001485 if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 &&
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001486 (cle->id_firmware == NULL ||
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +02001487 strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware)))
Bartlomiej Zolnierkiewicze59724c2008-02-01 23:09:22 +01001488 return cle->cd_flags;
1489 cle++;
1490 }
1491
1492 return 0;
1493}
1494
Borislav Petkove5e076a2008-04-26 22:25:15 +02001495static int ide_cdrom_setup(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001496{
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001497 struct cdrom_info *cd = drive->driver_data;
1498 struct cdrom_device_info *cdi = &cd->devinfo;
Bartlomiej Zolnierkiewicze698ea82009-03-31 20:15:16 +02001499 struct request_queue *q = drive->queue;
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +02001500 u16 *id = drive->id;
1501 char *fw_rev = (char *)&id[ATA_ID_FW_REV];
Linus Torvalds1da177e2005-04-16 15:20:36 -07001502 int nslots;
1503
Borislav Petkov088b1b82009-01-02 13:34:47 +01001504 ide_debug_log(IDE_DBG_PROBE, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001505
Bartlomiej Zolnierkiewicze698ea82009-03-31 20:15:16 +02001506 blk_queue_prep_rq(q, ide_cdrom_prep_fn);
1507 blk_queue_dma_alignment(q, 31);
1508 blk_queue_update_dma_pad(q, 15);
1509
Bartlomiej Zolnierkiewiczfe11edf2008-10-17 18:09:11 +02001510 drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED;
1511 drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001512
Borislav Petkov570f89e2008-07-23 19:56:02 +02001513 if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) &&
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +02001514 fw_rev[4] == '1' && fw_rev[6] <= '2')
Borislav Petkov570f89e2008-07-23 19:56:02 +02001515 drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD |
1516 IDE_AFLAG_TOCADDR_AS_BCD);
1517 else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) &&
Bartlomiej Zolnierkiewicz4dde4492008-10-10 22:39:19 +02001518 fw_rev[4] == '1' && fw_rev[6] <= '2')
Borislav Petkov570f89e2008-07-23 19:56:02 +02001519 drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD;
1520 else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD)
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001521 /* 3 => use CD in slot 0 */
1522 cdi->sanyo_slot = 3;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001523
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001524 nslots = ide_cdrom_probe_capabilities(drive);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001525
Martin K. Petersene1defc42009-05-22 17:17:49 -04001526 blk_queue_logical_block_size(q, CD_FRAMESIZE);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001527
Linus Torvalds1da177e2005-04-16 15:20:36 -07001528 if (ide_cdrom_register(drive, nslots)) {
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001529 printk(KERN_ERR PFX "%s: %s failed to register device with the"
Borislav Petkov83c85652008-04-26 22:25:15 +02001530 " cdrom driver.\n", drive->name, __func__);
Bartlomiej Zolnierkiewicz4fe67172008-02-01 23:09:21 +01001531 cd->devinfo.handle = NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001532 return 1;
1533 }
Bartlomiej Zolnierkiewicz1e874f42008-10-10 22:39:27 +02001534
1535 ide_proc_register_driver(drive, cd->driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001536 return 0;
1537}
1538
Russell King4031bbe2006-01-06 11:41:00 +00001539static void ide_cd_remove(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001540{
1541 struct cdrom_info *info = drive->driver_data;
1542
Borislav Petkov088b1b82009-01-02 13:34:47 +01001543 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001544
Bartlomiej Zolnierkiewicz7662d042007-05-10 00:01:10 +02001545 ide_proc_unregister_driver(drive, info->driver);
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001546 device_del(&info->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001547 del_gendisk(info->disk);
1548
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001549 mutex_lock(&idecd_ref_mutex);
1550 put_device(&info->dev);
1551 mutex_unlock(&idecd_ref_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001552}
1553
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001554static void ide_cd_release(struct device *dev)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001555{
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001556 struct cdrom_info *info = to_ide_drv(dev, cdrom_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001557 struct cdrom_device_info *devinfo = &info->devinfo;
1558 ide_drive_t *drive = info->drive;
1559 struct gendisk *g = info->disk;
1560
Borislav Petkov088b1b82009-01-02 13:34:47 +01001561 ide_debug_log(IDE_DBG_FUNC, "enter");
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001562
Jesper Juhl6044ec82005-11-07 01:01:32 -08001563 kfree(info->toc);
Akinobu Mita0a0c4112008-03-26 12:09:02 +01001564 if (devinfo->handle == drive)
1565 unregister_cdrom(devinfo);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001566 drive->driver_data = NULL;
1567 blk_queue_prep_rq(drive->queue, NULL);
1568 g->private_data = NULL;
1569 put_disk(g);
1570 kfree(info);
1571}
1572
Russell King4031bbe2006-01-06 11:41:00 +00001573static int ide_cd_probe(ide_drive_t *);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001574
Bartlomiej Zolnierkiewicz7f3c8682009-01-06 17:20:53 +01001575static struct ide_driver ide_cdrom_driver = {
Bartlomiej Zolnierkiewicz8604aff2005-05-26 14:55:34 +02001576 .gen_driver = {
Laurent Riffard4ef3b8f2005-11-18 22:15:40 +01001577 .owner = THIS_MODULE,
Bartlomiej Zolnierkiewicz8604aff2005-05-26 14:55:34 +02001578 .name = "ide-cdrom",
1579 .bus = &ide_bus_type,
Bartlomiej Zolnierkiewicz8604aff2005-05-26 14:55:34 +02001580 },
Russell King4031bbe2006-01-06 11:41:00 +00001581 .probe = ide_cd_probe,
1582 .remove = ide_cd_remove,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001583 .version = IDECD_VERSION,
Borislav Petkov99384ae2008-07-16 20:33:45 +02001584 .do_request = ide_cd_do_request,
Bartlomiej Zolnierkiewicz7662d042007-05-10 00:01:10 +02001585#ifdef CONFIG_IDE_PROC_FS
Bartlomiej Zolnierkiewicz79cb3802008-10-17 18:09:13 +02001586 .proc_entries = ide_cd_proc_entries,
1587 .proc_devsets = ide_cd_proc_devsets,
Bartlomiej Zolnierkiewicz7662d042007-05-10 00:01:10 +02001588#endif
Linus Torvalds1da177e2005-04-16 15:20:36 -07001589};
1590
Al Viro488ca602008-03-02 10:26:23 -05001591static int idecd_open(struct block_device *bdev, fmode_t mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001592{
Arnd Bergmann6e9624b2010-08-07 18:25:34 +02001593 struct cdrom_info *info;
1594 int rc = -ENXIO;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001595
Arnd Bergmann2a48fc02010-06-02 14:28:52 +02001596 mutex_lock(&ide_cd_mutex);
Arnd Bergmann6e9624b2010-08-07 18:25:34 +02001597 info = ide_cd_get(bdev->bd_disk);
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001598 if (!info)
Arnd Bergmann6e9624b2010-08-07 18:25:34 +02001599 goto out;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001600
Al Viro488ca602008-03-02 10:26:23 -05001601 rc = cdrom_open(&info->devinfo, bdev, mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001602 if (rc < 0)
1603 ide_cd_put(info);
Arnd Bergmann6e9624b2010-08-07 18:25:34 +02001604out:
Arnd Bergmann2a48fc02010-06-02 14:28:52 +02001605 mutex_unlock(&ide_cd_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001606 return rc;
1607}
1608
Al Virodb2a1442013-05-05 21:52:57 -04001609static void idecd_release(struct gendisk *disk, fmode_t mode)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001610{
Borislav Petkov5aeddf92008-10-13 21:39:34 +02001611 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001612
Arnd Bergmann2a48fc02010-06-02 14:28:52 +02001613 mutex_lock(&ide_cd_mutex);
Al Viro488ca602008-03-02 10:26:23 -05001614 cdrom_release(&info->devinfo, mode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001615
1616 ide_cd_put(info);
Arnd Bergmann2a48fc02010-06-02 14:28:52 +02001617 mutex_unlock(&ide_cd_mutex);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001618}
1619
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001620static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg)
1621{
1622 struct packet_command cgc;
1623 char buffer[16];
1624 int stat;
1625 char spindown;
1626
1627 if (copy_from_user(&spindown, (void __user *)arg, sizeof(char)))
1628 return -EFAULT;
1629
1630 init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
1631
1632 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0);
1633 if (stat)
1634 return stat;
1635
1636 buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f);
1637 return cdrom_mode_select(cdi, &cgc);
1638}
1639
1640static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg)
1641{
1642 struct packet_command cgc;
1643 char buffer[16];
1644 int stat;
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001645 char spindown;
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001646
1647 init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN);
1648
1649 stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0);
1650 if (stat)
1651 return stat;
1652
1653 spindown = buffer[11] & 0x0f;
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001654 if (copy_to_user((void __user *)arg, &spindown, sizeof(char)))
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001655 return -EFAULT;
1656 return 0;
1657}
1658
Arnd Bergmann8a6cfeb2010-07-08 10:18:46 +02001659static int idecd_locked_ioctl(struct block_device *bdev, fmode_t mode,
Linus Torvalds1da177e2005-04-16 15:20:36 -07001660 unsigned int cmd, unsigned long arg)
1661{
Borislav Petkov5aeddf92008-10-13 21:39:34 +02001662 struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001663 int err;
1664
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001665 switch (cmd) {
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001666 case CDROMSETSPINDOWN:
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001667 return idecd_set_spindown(&info->devinfo, arg);
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001668 case CDROMGETSPINDOWN:
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001669 return idecd_get_spindown(&info->devinfo, arg);
1670 default:
1671 break;
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001672 }
Christoph Hellwig6a2900b2006-03-23 03:00:15 -08001673
Al Viro1bddd9e2008-09-02 17:19:43 -04001674 err = generic_ide_ioctl(info->drive, bdev, cmd, arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001675 if (err == -EINVAL)
Al Viro488ca602008-03-02 10:26:23 -05001676 err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001677
1678 return err;
1679}
1680
Arnd Bergmann8a6cfeb2010-07-08 10:18:46 +02001681static int idecd_ioctl(struct block_device *bdev, fmode_t mode,
1682 unsigned int cmd, unsigned long arg)
1683{
1684 int ret;
1685
Arnd Bergmann2a48fc02010-06-02 14:28:52 +02001686 mutex_lock(&ide_cd_mutex);
Arnd Bergmann8a6cfeb2010-07-08 10:18:46 +02001687 ret = idecd_locked_ioctl(bdev, mode, cmd, arg);
Arnd Bergmann2a48fc02010-06-02 14:28:52 +02001688 mutex_unlock(&ide_cd_mutex);
Arnd Bergmann8a6cfeb2010-07-08 10:18:46 +02001689
1690 return ret;
1691}
1692
1693
Tejun Heo5b03a1b2011-03-09 19:54:27 +01001694static unsigned int idecd_check_events(struct gendisk *disk,
1695 unsigned int clearing)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001696{
Borislav Petkov5aeddf92008-10-13 21:39:34 +02001697 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
Tejun Heo5b03a1b2011-03-09 19:54:27 +01001698 return cdrom_check_events(&info->devinfo, clearing);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001699}
1700
1701static int idecd_revalidate_disk(struct gendisk *disk)
1702{
Borislav Petkov5aeddf92008-10-13 21:39:34 +02001703 struct cdrom_info *info = ide_drv_g(disk, cdrom_info);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001704 struct request_sense sense;
Bartlomiej Zolnierkiewicz139c8292008-02-01 23:09:24 +01001705
1706 ide_cd_read_toc(info->drive, &sense);
1707
Linus Torvalds1da177e2005-04-16 15:20:36 -07001708 return 0;
1709}
1710
Alexey Dobriyan83d5cde2009-09-21 17:01:13 -07001711static const struct block_device_operations idecd_ops = {
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001712 .owner = THIS_MODULE,
Al Viro488ca602008-03-02 10:26:23 -05001713 .open = idecd_open,
1714 .release = idecd_release,
Arnd Bergmann8a6cfeb2010-07-08 10:18:46 +02001715 .ioctl = idecd_ioctl,
Tejun Heo5b03a1b2011-03-09 19:54:27 +01001716 .check_events = idecd_check_events,
Paolo Ciarrocchi9ce70fb2008-04-26 17:36:42 +02001717 .revalidate_disk = idecd_revalidate_disk
Linus Torvalds1da177e2005-04-16 15:20:36 -07001718};
1719
Borislav Petkov5a3ea3b2008-04-26 22:25:15 +02001720/* module options */
Borislav Petkov35d9b172008-10-13 21:39:49 +02001721static unsigned long debug_mask;
1722module_param(debug_mask, ulong, 0644);
1723
Linus Torvalds1da177e2005-04-16 15:20:36 -07001724MODULE_DESCRIPTION("ATAPI CD-ROM Driver");
1725
Russell King4031bbe2006-01-06 11:41:00 +00001726static int ide_cd_probe(ide_drive_t *drive)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001727{
1728 struct cdrom_info *info;
1729 struct gendisk *g;
1730 struct request_sense sense;
1731
Borislav Petkov088b1b82009-01-02 13:34:47 +01001732 ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x",
1733 drive->driver_req, drive->media);
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001734
Linus Torvalds1da177e2005-04-16 15:20:36 -07001735 if (!strstr("ide-cdrom", drive->driver_req))
1736 goto failed;
Bartlomiej Zolnierkiewicz2a924662008-10-10 22:39:24 +02001737
Linus Torvalds1da177e2005-04-16 15:20:36 -07001738 if (drive->media != ide_cdrom && drive->media != ide_optical)
1739 goto failed;
Bartlomiej Zolnierkiewicz2a924662008-10-10 22:39:24 +02001740
Borislav Petkov35d9b172008-10-13 21:39:49 +02001741 drive->debug_mask = debug_mask;
Borislav Petkovd6251d42009-01-06 17:20:58 +01001742 drive->irq_handler = cdrom_newpc_intr;
Borislav Petkov35d9b172008-10-13 21:39:49 +02001743
Deepak Saxenaf5e3c2f2005-11-07 01:01:25 -08001744 info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001745 if (info == NULL) {
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001746 printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n",
Borislav Petkov83c85652008-04-26 22:25:15 +02001747 drive->name);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001748 goto failed;
1749 }
1750
1751 g = alloc_disk(1 << PARTN_BITS);
1752 if (!g)
1753 goto out_free_cd;
1754
1755 ide_init_disk(g, drive);
1756
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001757 info->dev.parent = &drive->gendev;
1758 info->dev.release = ide_cd_release;
1759 dev_set_name(&info->dev, dev_name(&drive->gendev));
1760
1761 if (device_register(&info->dev))
1762 goto out_free_disk;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001763
1764 info->drive = drive;
1765 info->driver = &ide_cdrom_driver;
1766 info->disk = g;
1767
1768 g->private_data = &info->driver;
1769
1770 drive->driver_data = info;
1771
Linus Torvalds1da177e2005-04-16 15:20:36 -07001772 g->minors = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001773 g->driverfs_dev = &drive->gendev;
1774 g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE;
1775 if (ide_cdrom_setup(drive)) {
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001776 put_device(&info->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001777 goto failed;
1778 }
Linus Torvalds1da177e2005-04-16 15:20:36 -07001779
Bartlomiej Zolnierkiewicz139c8292008-02-01 23:09:24 +01001780 ide_cd_read_toc(drive, &sense);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001781 g->fops = &idecd_ops;
Tejun Heod4dc2102011-04-21 20:54:46 +02001782 g->flags |= GENHD_FL_REMOVABLE | GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001783 add_disk(g);
1784 return 0;
1785
Bartlomiej Zolnierkiewicz8fed4362009-02-25 20:28:24 +01001786out_free_disk:
1787 put_disk(g);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001788out_free_cd:
1789 kfree(info);
1790failed:
Bartlomiej Zolnierkiewicz8604aff2005-05-26 14:55:34 +02001791 return -ENODEV;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001792}
1793
1794static void __exit ide_cdrom_exit(void)
1795{
Bartlomiej Zolnierkiewicz8604aff2005-05-26 14:55:34 +02001796 driver_unregister(&ide_cdrom_driver.gen_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001797}
Bartlomiej Zolnierkiewicz17514e82005-11-19 22:24:35 +01001798
1799static int __init ide_cdrom_init(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001800{
Borislav Petkovfc8323f2008-10-13 21:39:48 +02001801 printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n");
Bartlomiej Zolnierkiewicz8604aff2005-05-26 14:55:34 +02001802 return driver_register(&ide_cdrom_driver.gen_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001803}
1804
Kay Sievers263756e2005-12-12 18:03:44 +01001805MODULE_ALIAS("ide:*m-cdrom*");
Bartlomiej Zolnierkiewicz972560f2008-02-01 23:09:23 +01001806MODULE_ALIAS("ide-cd");
Linus Torvalds1da177e2005-04-16 15:20:36 -07001807module_init(ide_cdrom_init);
1808module_exit(ide_cdrom_exit);
1809MODULE_LICENSE("GPL");