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Commit | Line | Data |
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1da177e4 | 1 | /* |
3bb4663b | 2 | * ATAPI CD-ROM driver. |
1da177e4 | 3 | * |
59bca8cc BZ |
4 | * Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov> |
5 | * Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org> | |
6 | * Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de> | |
14fa91cc | 7 | * Copyright (C) 2005, 2007-2009 Bartlomiej Zolnierkiewicz |
1da177e4 LT |
8 | * |
9 | * May be copied or modified under the terms of the GNU General Public | |
10 | * License. See linux/COPYING for more information. | |
11 | * | |
1da177e4 LT |
12 | * See Documentation/cdrom/ide-cd for usage information. |
13 | * | |
14 | * Suggestions are welcome. Patches that work are more welcome though. ;-) | |
116e690f BZ |
15 | * |
16 | * Documentation: | |
17 | * Mt. Fuji (SFF8090 version 4) and ATAPI (SFF-8020i rev 2.6) standards. | |
1da177e4 | 18 | * |
03553353 BZ |
19 | * For historical changelog please see: |
20 | * Documentation/ide/ChangeLog.ide-cd.1994-2004 | |
21 | */ | |
22 | ||
fc8323f7 BP |
23 | #define DRV_NAME "ide-cd" |
24 | #define PFX DRV_NAME ": " | |
25 | ||
3bb4663b | 26 | #define IDECD_VERSION "5.00" |
1da177e4 | 27 | |
1da177e4 LT |
28 | #include <linux/module.h> |
29 | #include <linux/types.h> | |
30 | #include <linux/kernel.h> | |
68db0cf1 | 31 | #include <linux/sched/task_stack.h> |
1da177e4 LT |
32 | #include <linux/delay.h> |
33 | #include <linux/timer.h> | |
6d703a81 | 34 | #include <linux/seq_file.h> |
1da177e4 LT |
35 | #include <linux/slab.h> |
36 | #include <linux/interrupt.h> | |
37 | #include <linux/errno.h> | |
38 | #include <linux/cdrom.h> | |
39 | #include <linux/ide.h> | |
40 | #include <linux/completion.h> | |
cf8b8975 | 41 | #include <linux/mutex.h> |
9a6dc668 | 42 | #include <linux/bcd.h> |
1da177e4 | 43 | |
5a3ea3b4 BP |
44 | /* For SCSI -> ATAPI command conversion */ |
45 | #include <scsi/scsi.h> | |
1da177e4 | 46 | |
9aba468e | 47 | #include <linux/io.h> |
1da177e4 | 48 | #include <asm/byteorder.h> |
9aba468e | 49 | #include <linux/uaccess.h> |
1da177e4 LT |
50 | #include <asm/unaligned.h> |
51 | ||
52 | #include "ide-cd.h" | |
53 | ||
2a48fc0a | 54 | static DEFINE_MUTEX(ide_cd_mutex); |
cf8b8975 | 55 | static DEFINE_MUTEX(idecd_ref_mutex); |
1da177e4 | 56 | |
8fed4368 | 57 | static void ide_cd_release(struct device *); |
08da591e | 58 | |
1da177e4 LT |
59 | static struct cdrom_info *ide_cd_get(struct gendisk *disk) |
60 | { | |
61 | struct cdrom_info *cd = NULL; | |
62 | ||
cf8b8975 | 63 | mutex_lock(&idecd_ref_mutex); |
5aeddf90 | 64 | cd = ide_drv_g(disk, cdrom_info); |
08da591e | 65 | if (cd) { |
d3e33ff5 | 66 | if (ide_device_get(cd->drive)) |
08da591e | 67 | cd = NULL; |
d3e33ff5 | 68 | else |
8fed4368 | 69 | get_device(&cd->dev); |
d3e33ff5 | 70 | |
08da591e | 71 | } |
cf8b8975 | 72 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
73 | return cd; |
74 | } | |
75 | ||
1da177e4 LT |
76 | static void ide_cd_put(struct cdrom_info *cd) |
77 | { | |
d3e33ff5 BZ |
78 | ide_drive_t *drive = cd->drive; |
79 | ||
cf8b8975 | 80 | mutex_lock(&idecd_ref_mutex); |
8fed4368 | 81 | put_device(&cd->dev); |
d3e33ff5 | 82 | ide_device_put(drive); |
cf8b8975 | 83 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
84 | } |
85 | ||
5a3ea3b4 | 86 | /* |
1da177e4 LT |
87 | * Generic packet command support and error handling routines. |
88 | */ | |
89 | ||
5a3ea3b4 | 90 | /* Mark that we've seen a media change and invalidate our internal buffers. */ |
9ce70fb2 | 91 | static void cdrom_saw_media_change(ide_drive_t *drive) |
1da177e4 | 92 | { |
fe11edfa | 93 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
570f89ea | 94 | drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
95 | } |
96 | ||
239f7e25 | 97 | static int cdrom_log_sense(ide_drive_t *drive, struct request *rq) |
1da177e4 | 98 | { |
239f7e25 | 99 | struct request_sense *sense = &drive->sense_data; |
1da177e4 LT |
100 | int log = 0; |
101 | ||
e8064021 | 102 | if (!sense || !rq || (rq->rq_flags & RQF_QUIET)) |
1da177e4 LT |
103 | return 0; |
104 | ||
239f7e25 BP |
105 | ide_debug_log(IDE_DBG_SENSE, "sense_key: 0x%x", sense->sense_key); |
106 | ||
1da177e4 | 107 | switch (sense->sense_key) { |
9ce70fb2 PC |
108 | case NO_SENSE: |
109 | case RECOVERED_ERROR: | |
110 | break; | |
111 | case NOT_READY: | |
112 | /* | |
5a3ea3b4 BP |
113 | * don't care about tray state messages for e.g. capacity |
114 | * commands or in-progress or becoming ready | |
9ce70fb2 PC |
115 | */ |
116 | if (sense->asc == 0x3a || sense->asc == 0x04) | |
1da177e4 | 117 | break; |
9ce70fb2 PC |
118 | log = 1; |
119 | break; | |
120 | case ILLEGAL_REQUEST: | |
121 | /* | |
5a3ea3b4 BP |
122 | * don't log START_STOP unit with LoEj set, since we cannot |
123 | * reliably check if drive can auto-close | |
9ce70fb2 | 124 | */ |
82ed4db4 | 125 | if (scsi_req(rq)->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24) |
1da177e4 | 126 | break; |
9ce70fb2 PC |
127 | log = 1; |
128 | break; | |
129 | case UNIT_ATTENTION: | |
130 | /* | |
5a3ea3b4 BP |
131 | * Make good and sure we've seen this potential media change. |
132 | * Some drives (i.e. Creative) fail to present the correct sense | |
133 | * key in the error register. | |
9ce70fb2 PC |
134 | */ |
135 | cdrom_saw_media_change(drive); | |
136 | break; | |
137 | default: | |
138 | log = 1; | |
139 | break; | |
1da177e4 LT |
140 | } |
141 | return log; | |
142 | } | |
143 | ||
e5e076a3 | 144 | static void cdrom_analyze_sense_data(ide_drive_t *drive, |
239f7e25 | 145 | struct request *failed_command) |
1da177e4 | 146 | { |
239f7e25 BP |
147 | struct request_sense *sense = &drive->sense_data; |
148 | struct cdrom_info *info = drive->driver_data; | |
dbe217af AC |
149 | unsigned long sector; |
150 | unsigned long bio_sectors; | |
dbe217af | 151 | |
088b1b88 BP |
152 | ide_debug_log(IDE_DBG_SENSE, "error_code: 0x%x, sense_key: 0x%x", |
153 | sense->error_code, sense->sense_key); | |
fc8323f7 BP |
154 | |
155 | if (failed_command) | |
088b1b88 BP |
156 | ide_debug_log(IDE_DBG_SENSE, "failed cmd: 0x%x", |
157 | failed_command->cmd[0]); | |
fc8323f7 | 158 | |
239f7e25 | 159 | if (!cdrom_log_sense(drive, failed_command)) |
1da177e4 LT |
160 | return; |
161 | ||
162 | /* | |
5a3ea3b4 BP |
163 | * If a read toc is executed for a CD-R or CD-RW medium where the first |
164 | * toc has not been recorded yet, it will fail with 05/24/00 (which is a | |
165 | * confusing error) | |
1da177e4 | 166 | */ |
82ed4db4 | 167 | if (failed_command && scsi_req(failed_command)->cmd[0] == GPCMD_READ_TOC_PMA_ATIP) |
1da177e4 LT |
168 | if (sense->sense_key == 0x05 && sense->asc == 0x24) |
169 | return; | |
170 | ||
5a3ea3b4 BP |
171 | /* current error */ |
172 | if (sense->error_code == 0x70) { | |
9ce70fb2 | 173 | switch (sense->sense_key) { |
dbe217af AC |
174 | case MEDIUM_ERROR: |
175 | case VOLUME_OVERFLOW: | |
176 | case ILLEGAL_REQUEST: | |
177 | if (!sense->valid) | |
178 | break; | |
179 | if (failed_command == NULL || | |
aebf526b | 180 | blk_rq_is_passthrough(failed_command)) |
dbe217af AC |
181 | break; |
182 | sector = (sense->information[0] << 24) | | |
183 | (sense->information[1] << 16) | | |
184 | (sense->information[2] << 8) | | |
185 | (sense->information[3]); | |
186 | ||
e1defc4f | 187 | if (queue_logical_block_size(drive->queue) == 2048) |
5a3ea3b4 BP |
188 | /* device sector size is 2K */ |
189 | sector <<= 2; | |
eee49298 RK |
190 | |
191 | bio_sectors = max(bio_sectors(failed_command->bio), 4U); | |
9ce70fb2 | 192 | sector &= ~(bio_sectors - 1); |
dbe217af | 193 | |
d3dd7107 BZ |
194 | /* |
195 | * The SCSI specification allows for the value | |
196 | * returned by READ CAPACITY to be up to 75 2K | |
197 | * sectors past the last readable block. | |
198 | * Therefore, if we hit a medium error within the | |
199 | * last 75 2K sectors, we decrease the saved size | |
200 | * value. | |
201 | */ | |
dbe217af | 202 | if (sector < get_capacity(info->disk) && |
e5e076a3 | 203 | drive->probed_capacity - sector < 4 * 75) |
dbe217af | 204 | set_capacity(info->disk, sector); |
9ce70fb2 PC |
205 | } |
206 | } | |
1da177e4 | 207 | |
972560fb | 208 | ide_cd_log_error(drive->name, failed_command, sense); |
1da177e4 LT |
209 | } |
210 | ||
299c4852 BZ |
211 | static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq) |
212 | { | |
213 | /* | |
2f5a8e80 | 214 | * For ATA_PRIV_SENSE, "rq->special" points to the original |
02e7cf8f TH |
215 | * failed request. Also, the sense data should be read |
216 | * directly from rq which might be different from the original | |
217 | * sense buffer if it got copied during mapping. | |
299c4852 | 218 | */ |
1f181d2b | 219 | struct request *failed = (struct request *)rq->special; |
02e7cf8f | 220 | void *sense = bio_data(rq->bio); |
299c4852 BZ |
221 | |
222 | if (failed) { | |
82ed4db4 CH |
223 | /* |
224 | * Sense is always read into drive->sense_data, copy back to the | |
225 | * original request. | |
226 | */ | |
227 | memcpy(scsi_req(failed)->sense, sense, 18); | |
228 | scsi_req(failed)->sense_len = scsi_req(rq)->sense_len; | |
239f7e25 | 229 | cdrom_analyze_sense_data(drive, failed); |
299c4852 BZ |
230 | |
231 | if (ide_end_rq(drive, failed, -EIO, blk_rq_bytes(failed))) | |
232 | BUG(); | |
233 | } else | |
239f7e25 | 234 | cdrom_analyze_sense_data(drive, NULL); |
299c4852 BZ |
235 | } |
236 | ||
805ec58a | 237 | |
5a3ea3b4 | 238 | /* |
805ec58a BP |
239 | * Allow the drive 5 seconds to recover; some devices will return NOT_READY |
240 | * while flushing data from cache. | |
241 | * | |
242 | * returns: 0 failed (write timeout expired) | |
243 | * 1 success | |
244 | */ | |
245 | static int ide_cd_breathe(ide_drive_t *drive, struct request *rq) | |
246 | { | |
247 | ||
248 | struct cdrom_info *info = drive->driver_data; | |
249 | ||
250 | if (!rq->errors) | |
251 | info->write_timeout = jiffies + ATAPI_WAIT_WRITE_BUSY; | |
252 | ||
253 | rq->errors = 1; | |
254 | ||
255 | if (time_after(jiffies, info->write_timeout)) | |
256 | return 0; | |
257 | else { | |
805ec58a | 258 | /* |
0a41e90b | 259 | * take a breather |
805ec58a | 260 | */ |
0a41e90b | 261 | blk_delay_queue(drive->queue, 1); |
805ec58a BP |
262 | return 1; |
263 | } | |
264 | } | |
265 | ||
266 | /** | |
5a3ea3b4 BP |
267 | * Returns: |
268 | * 0: if the request should be continued. | |
8a116974 BZ |
269 | * 1: if the request will be going through error recovery. |
270 | * 2: if the request should be ended. | |
5a3ea3b4 | 271 | */ |
8e59bfde | 272 | static int cdrom_decode_status(ide_drive_t *drive, u8 stat) |
1da177e4 | 273 | { |
b73c7ee2 | 274 | ide_hwif_t *hwif = drive->hwif; |
b65fac32 | 275 | struct request *rq = hwif->rq; |
674f0ea1 | 276 | int err, sense_key, do_end_request = 0; |
1da177e4 | 277 | |
5a3ea3b4 | 278 | /* get the IDE error register */ |
64a57fe4 | 279 | err = ide_read_error(drive); |
1da177e4 LT |
280 | sense_key = err >> 4; |
281 | ||
98036abf BP |
282 | ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, rq->cmd_type: 0x%x, err: 0x%x, " |
283 | "stat 0x%x", | |
284 | rq->cmd[0], rq->cmd_type, err, stat); | |
fc8323f7 | 285 | |
2f5a8e80 | 286 | if (ata_sense_request(rq)) { |
5a3ea3b4 BP |
287 | /* |
288 | * We got an error trying to get sense info from the drive | |
289 | * (probably while trying to recover from a former error). | |
290 | * Just give up. | |
291 | */ | |
e8064021 | 292 | rq->rq_flags |= RQF_FAILED; |
8a116974 | 293 | return 2; |
674f0ea1 | 294 | } |
1da177e4 | 295 | |
674f0ea1 | 296 | /* if we have an error, pass CHECK_CONDITION as the SCSI status byte */ |
aebf526b | 297 | if (blk_rq_is_scsi(rq) && !rq->errors) |
674f0ea1 | 298 | rq->errors = SAM_STAT_CHECK_CONDITION; |
1da177e4 | 299 | |
674f0ea1 BZ |
300 | if (blk_noretry_request(rq)) |
301 | do_end_request = 1; | |
1da177e4 | 302 | |
674f0ea1 BZ |
303 | switch (sense_key) { |
304 | case NOT_READY: | |
aebf526b | 305 | if (req_op(rq) == REQ_OP_WRITE) { |
3c8a48e9 BP |
306 | if (ide_cd_breathe(drive, rq)) |
307 | return 1; | |
308 | } else { | |
e5e076a3 | 309 | cdrom_saw_media_change(drive); |
1da177e4 | 310 | |
aebf526b | 311 | if (!blk_rq_is_passthrough(rq) && |
e8064021 | 312 | !(rq->rq_flags & RQF_QUIET)) |
674f0ea1 BZ |
313 | printk(KERN_ERR PFX "%s: tray open\n", |
314 | drive->name); | |
1da177e4 | 315 | } |
674f0ea1 BZ |
316 | do_end_request = 1; |
317 | break; | |
318 | case UNIT_ATTENTION: | |
319 | cdrom_saw_media_change(drive); | |
1da177e4 | 320 | |
aebf526b | 321 | if (blk_rq_is_passthrough(rq)) |
674f0ea1 | 322 | return 0; |
1920c48d | 323 | |
5a3ea3b4 | 324 | /* |
674f0ea1 BZ |
325 | * Arrange to retry the request but be sure to give up if we've |
326 | * retried too many times. | |
5a3ea3b4 | 327 | */ |
674f0ea1 BZ |
328 | if (++rq->errors > ERROR_MAX) |
329 | do_end_request = 1; | |
330 | break; | |
331 | case ILLEGAL_REQUEST: | |
bbb89e3d | 332 | /* |
674f0ea1 BZ |
333 | * Don't print error message for this condition -- SFF8090i |
334 | * indicates that 5/24/00 is the correct response to a request | |
335 | * to close the tray if the drive doesn't have that capability. | |
336 | * | |
337 | * cdrom_log_sense() knows this! | |
bbb89e3d | 338 | */ |
82ed4db4 | 339 | if (scsi_req(rq)->cmd[0] == GPCMD_START_STOP_UNIT) |
674f0ea1 BZ |
340 | break; |
341 | /* fall-through */ | |
342 | case DATA_PROTECT: | |
343 | /* | |
344 | * No point in retrying after an illegal request or data | |
345 | * protect error. | |
346 | */ | |
e8064021 | 347 | if (!(rq->rq_flags & RQF_QUIET)) |
674f0ea1 BZ |
348 | ide_dump_status(drive, "command error", stat); |
349 | do_end_request = 1; | |
350 | break; | |
351 | case MEDIUM_ERROR: | |
352 | /* | |
353 | * No point in re-trying a zillion times on a bad sector. | |
354 | * If we got here the error is not correctable. | |
355 | */ | |
e8064021 | 356 | if (!(rq->rq_flags & RQF_QUIET)) |
674f0ea1 BZ |
357 | ide_dump_status(drive, "media error " |
358 | "(bad sector)", stat); | |
359 | do_end_request = 1; | |
360 | break; | |
361 | case BLANK_CHECK: | |
362 | /* disk appears blank? */ | |
e8064021 | 363 | if (!(rq->rq_flags & RQF_QUIET)) |
674f0ea1 BZ |
364 | ide_dump_status(drive, "media error (blank)", |
365 | stat); | |
366 | do_end_request = 1; | |
367 | break; | |
368 | default: | |
aebf526b | 369 | if (blk_rq_is_passthrough(rq)) |
674f0ea1 BZ |
370 | break; |
371 | if (err & ~ATA_ABORTED) { | |
372 | /* go to the default handler for other errors */ | |
373 | ide_error(drive, "cdrom_decode_status", stat); | |
374 | return 1; | |
375 | } else if (++rq->errors > ERROR_MAX) | |
376 | /* we've racked up too many retries, abort */ | |
377 | do_end_request = 1; | |
1da177e4 LT |
378 | } |
379 | ||
aebf526b | 380 | if (blk_rq_is_passthrough(rq)) { |
e8064021 | 381 | rq->rq_flags |= RQF_FAILED; |
674f0ea1 BZ |
382 | do_end_request = 1; |
383 | } | |
384 | ||
385 | /* | |
386 | * End a request through request sense analysis when we have sense data. | |
387 | * We need this in order to perform end of media processing. | |
388 | */ | |
389 | if (do_end_request) | |
390 | goto end_request; | |
391 | ||
392 | /* if we got a CHECK_CONDITION status, queue a request sense command */ | |
393 | if (stat & ATA_ERR) | |
02e7cf8f | 394 | return ide_queue_sense_rq(drive, NULL) ? 2 : 1; |
674f0ea1 BZ |
395 | return 1; |
396 | ||
bbb89e3d | 397 | end_request: |
3a7d2484 | 398 | if (stat & ATA_ERR) { |
b65fac32 | 399 | hwif->rq = NULL; |
02e7cf8f | 400 | return ide_queue_sense_rq(drive, rq) ? 2 : 1; |
bbb89e3d | 401 | } else |
8a116974 | 402 | return 2; |
1da177e4 LT |
403 | } |
404 | ||
c7ec8999 | 405 | static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct ide_cmd *cmd) |
8ee69f5a | 406 | { |
c7ec8999 BZ |
407 | struct request *rq = cmd->rq; |
408 | ||
088b1b88 | 409 | ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]); |
fc8323f7 | 410 | |
8ee69f5a BZ |
411 | /* |
412 | * Some of the trailing request sense fields are optional, | |
413 | * and some drives don't send them. Sigh. | |
414 | */ | |
82ed4db4 | 415 | if (scsi_req(rq)->cmd[0] == GPCMD_REQUEST_SENSE && |
59a4f6f3 TH |
416 | cmd->nleft > 0 && cmd->nleft <= 5) |
417 | cmd->nleft = 0; | |
8ee69f5a BZ |
418 | } |
419 | ||
5f828546 FT |
420 | int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, |
421 | int write, void *buffer, unsigned *bufflen, | |
422 | struct request_sense *sense, int timeout, | |
e8064021 | 423 | req_flags_t rq_flags) |
1da177e4 | 424 | { |
5f828546 | 425 | struct cdrom_info *info = drive->driver_data; |
1da177e4 | 426 | int retries = 10; |
82ed4db4 | 427 | bool failed; |
1da177e4 | 428 | |
088b1b88 | 429 | ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, " |
e8064021 CH |
430 | "rq_flags: 0x%x", |
431 | cmd[0], write, timeout, rq_flags); | |
fc8323f7 | 432 | |
5a3ea3b4 | 433 | /* start of retry loop */ |
1da177e4 | 434 | do { |
5f828546 | 435 | struct request *rq; |
1da177e4 | 436 | int error; |
82ed4db4 | 437 | bool delay = false; |
1da177e4 | 438 | |
aebf526b CH |
439 | rq = blk_get_request(drive->queue, |
440 | write ? REQ_OP_DRV_OUT : REQ_OP_DRV_IN, __GFP_RECLAIM); | |
82ed4db4 CH |
441 | scsi_req_init(rq); |
442 | memcpy(scsi_req(rq)->cmd, cmd, BLK_MAX_CDB); | |
2f5a8e80 | 443 | ide_req(rq)->type = ATA_PRIV_PC; |
e8064021 | 444 | rq->rq_flags |= rq_flags; |
5f828546 FT |
445 | rq->timeout = timeout; |
446 | if (buffer) { | |
02e7cf8f TH |
447 | error = blk_rq_map_kern(drive->queue, rq, buffer, |
448 | *bufflen, GFP_NOIO); | |
449 | if (error) { | |
450 | blk_put_request(rq); | |
451 | return error; | |
452 | } | |
5f828546 FT |
453 | } |
454 | ||
b7819b92 CH |
455 | blk_execute_rq(drive->queue, info->disk, rq, 0); |
456 | error = rq->errors ? -EIO : 0; | |
5f828546 FT |
457 | |
458 | if (buffer) | |
82ed4db4 CH |
459 | *bufflen = scsi_req(rq)->resid_len; |
460 | if (sense) | |
461 | memcpy(sense, scsi_req(rq)->sense, sizeof(*sense)); | |
1da177e4 | 462 | |
5a3ea3b4 BP |
463 | /* |
464 | * FIXME: we should probably abort/retry or something in case of | |
465 | * failure. | |
466 | */ | |
82ed4db4 CH |
467 | failed = (rq->rq_flags & RQF_FAILED) != 0; |
468 | if (failed) { | |
5a3ea3b4 BP |
469 | /* |
470 | * The request failed. Retry if it was due to a unit | |
471 | * attention status (usually means media was changed). | |
472 | */ | |
82ed4db4 | 473 | struct request_sense *reqbuf = scsi_req(rq)->sense; |
1da177e4 LT |
474 | |
475 | if (reqbuf->sense_key == UNIT_ATTENTION) | |
476 | cdrom_saw_media_change(drive); | |
477 | else if (reqbuf->sense_key == NOT_READY && | |
478 | reqbuf->asc == 4 && reqbuf->ascq != 4) { | |
5a3ea3b4 BP |
479 | /* |
480 | * The drive is in the process of loading | |
481 | * a disk. Retry, but wait a little to give | |
482 | * the drive time to complete the load. | |
483 | */ | |
82ed4db4 | 484 | delay = true; |
1da177e4 | 485 | } else { |
5a3ea3b4 | 486 | /* otherwise, don't retry */ |
1da177e4 LT |
487 | retries = 0; |
488 | } | |
489 | --retries; | |
490 | } | |
82ed4db4 CH |
491 | blk_put_request(rq); |
492 | if (delay) | |
493 | ssleep(2); | |
494 | } while (failed && retries >= 0); | |
1da177e4 | 495 | |
5a3ea3b4 | 496 | /* return an error if the command failed */ |
82ed4db4 | 497 | return failed ? -EIO : 0; |
1da177e4 LT |
498 | } |
499 | ||
11071282 BP |
500 | /* |
501 | * returns true if rq has been completed | |
502 | */ | |
503 | static bool ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd) | |
a08915ba BZ |
504 | { |
505 | unsigned int nr_bytes = cmd->nbytes - cmd->nleft; | |
506 | ||
507 | if (cmd->tf_flags & IDE_TFLAG_WRITE) | |
508 | nr_bytes -= cmd->last_xfer_len; | |
509 | ||
11071282 | 510 | if (nr_bytes > 0) { |
a08915ba | 511 | ide_complete_rq(drive, 0, nr_bytes); |
11071282 BP |
512 | return true; |
513 | } | |
514 | ||
515 | return false; | |
a08915ba BZ |
516 | } |
517 | ||
1da177e4 LT |
518 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) |
519 | { | |
23579a2a | 520 | ide_hwif_t *hwif = drive->hwif; |
a08915ba | 521 | struct ide_cmd *cmd = &hwif->cmd; |
b65fac32 | 522 | struct request *rq = hwif->rq; |
0041e7c6 | 523 | ide_expiry_t *expiry = NULL; |
8e59bfde | 524 | int dma_error = 0, dma, thislen, uptodate = 0; |
34b7d2c9 | 525 | int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc = 0; |
2f5a8e80 | 526 | int sense = ata_sense_request(rq); |
ff1bfbc1 | 527 | unsigned int timeout; |
1823649b | 528 | u16 len; |
8e59bfde | 529 | u8 ireason, stat; |
1da177e4 | 530 | |
98036abf | 531 | ide_debug_log(IDE_DBG_PC, "cmd: 0x%x, write: 0x%x", rq->cmd[0], write); |
fc8323f7 | 532 | |
5a3ea3b4 | 533 | /* check for errors */ |
12469ac0 | 534 | dma = drive->dma; |
1da177e4 | 535 | if (dma) { |
12469ac0 | 536 | drive->dma = 0; |
88b4132e | 537 | drive->waiting_for_dma = 0; |
5e37bdc0 | 538 | dma_error = hwif->dma_ops->dma_end(drive); |
f094d4d8 | 539 | ide_dma_unmap_sg(drive, cmd); |
eba15fba | 540 | if (dma_error) { |
fc8323f7 | 541 | printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name, |
ff1bfbc1 | 542 | write ? "write" : "read"); |
eba15fba BZ |
543 | ide_dma_off(drive); |
544 | } | |
1da177e4 LT |
545 | } |
546 | ||
8e59bfde BP |
547 | /* check status */ |
548 | stat = hwif->tp_ops->read_status(hwif); | |
549 | ||
550 | if (!OK_STAT(stat, 0, BAD_R_STAT)) { | |
551 | rc = cdrom_decode_status(drive, stat); | |
552 | if (rc) { | |
553 | if (rc == 2) | |
554 | goto out_end; | |
555 | return ide_stopped; | |
556 | } | |
8a116974 | 557 | } |
1da177e4 | 558 | |
5a3ea3b4 | 559 | /* using dma, transfer is complete now */ |
1da177e4 | 560 | if (dma) { |
eba15fba | 561 | if (dma_error) |
1da177e4 | 562 | return ide_error(drive, "dma error", stat); |
4a3d8cf4 | 563 | uptodate = 1; |
984c5e59 | 564 | goto out_end; |
1da177e4 LT |
565 | } |
566 | ||
1823649b | 567 | ide_read_bcount_and_ireason(drive, &len, &ireason); |
0041e7c6 | 568 | |
aebf526b | 569 | thislen = !blk_rq_is_passthrough(rq) ? len : cmd->nleft; |
1da177e4 LT |
570 | if (thislen > len) |
571 | thislen = len; | |
572 | ||
088b1b88 BP |
573 | ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d", |
574 | stat, thislen); | |
fc8323f7 | 575 | |
5a3ea3b4 | 576 | /* If DRQ is clear, the command has completed. */ |
3a7d2484 | 577 | if ((stat & ATA_DRQ) == 0) { |
aebf526b CH |
578 | switch (req_op(rq)) { |
579 | default: | |
0041e7c6 BZ |
580 | /* |
581 | * If we're not done reading/writing, complain. | |
582 | * Otherwise, complete the command normally. | |
583 | */ | |
584 | uptodate = 1; | |
a08915ba | 585 | if (cmd->nleft > 0) { |
fc8323f7 | 586 | printk(KERN_ERR PFX "%s: %s: data underrun " |
a08915ba BZ |
587 | "(%u bytes)\n", drive->name, __func__, |
588 | cmd->nleft); | |
0041e7c6 | 589 | if (!write) |
e8064021 | 590 | rq->rq_flags |= RQF_FAILED; |
0041e7c6 BZ |
591 | uptodate = 0; |
592 | } | |
aebf526b CH |
593 | goto out_end; |
594 | case REQ_OP_DRV_IN: | |
595 | case REQ_OP_DRV_OUT: | |
c7ec8999 | 596 | ide_cd_request_sense_fixup(drive, cmd); |
9c72ebef | 597 | |
c7ec8999 | 598 | uptodate = cmd->nleft ? 0 : 1; |
9c72ebef BP |
599 | |
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) | |
e8064021 | 610 | rq->rq_flags |= RQF_FAILED; |
aebf526b CH |
611 | goto out_end; |
612 | case REQ_OP_SCSI_IN: | |
613 | case REQ_OP_SCSI_OUT: | |
614 | goto out_end; | |
ff1bfbc1 | 615 | } |
aaa04c28 | 616 | } |
1da177e4 | 617 | |
103f7033 | 618 | rc = ide_check_ireason(drive, rq, len, ireason, write); |
8a116974 BZ |
619 | if (rc) |
620 | goto out_end; | |
0041e7c6 | 621 | |
06a449e3 | 622 | cmd->last_xfer_len = 0; |
1da177e4 | 623 | |
088b1b88 BP |
624 | ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, " |
625 | "ireason: 0x%x", | |
626 | rq->cmd_type, ireason); | |
fc8323f7 | 627 | |
5a3ea3b4 | 628 | /* transfer data */ |
1da177e4 | 629 | while (thislen > 0) { |
c7ec8999 | 630 | int blen = min_t(int, thislen, cmd->nleft); |
1da177e4 | 631 | |
14fa91cc | 632 | if (cmd->nleft == 0) |
1da177e4 | 633 | break; |
1da177e4 | 634 | |
c7ec8999 BZ |
635 | ide_pio_bytes(drive, cmd, write, blen); |
636 | cmd->last_xfer_len += blen; | |
1da177e4 LT |
637 | |
638 | thislen -= blen; | |
639 | len -= blen; | |
1da177e4 | 640 | |
8a116974 | 641 | if (sense && write == 0) |
82ed4db4 | 642 | scsi_req(rq)->sense_len += blen; |
1da177e4 LT |
643 | } |
644 | ||
5a3ea3b4 | 645 | /* pad, if necessary */ |
14fa91cc | 646 | if (len > 0) { |
aebf526b | 647 | if (blk_rq_is_passthrough(rq) || write == 0) |
14fa91cc BZ |
648 | ide_pad_transfer(drive, write, len); |
649 | else { | |
650 | printk(KERN_ERR PFX "%s: confused, missing data\n", | |
651 | drive->name); | |
652 | blk_dump_rq_flags(rq, "cdrom_newpc_intr"); | |
653 | } | |
654 | } | |
1da177e4 | 655 | |
aebf526b CH |
656 | switch (req_op(rq)) { |
657 | case REQ_OP_SCSI_IN: | |
658 | case REQ_OP_SCSI_OUT: | |
ff1bfbc1 | 659 | timeout = rq->timeout; |
aebf526b CH |
660 | break; |
661 | case REQ_OP_DRV_IN: | |
662 | case REQ_OP_DRV_OUT: | |
663 | expiry = ide_cd_expiry; | |
664 | /*FALLTHRU*/ | |
665 | default: | |
ff1bfbc1 | 666 | timeout = ATAPI_WAIT_PC; |
aebf526b | 667 | break; |
ff1bfbc1 BZ |
668 | } |
669 | ||
60c0cd02 BZ |
670 | hwif->expiry = expiry; |
671 | ide_set_handler(drive, cdrom_newpc_intr, timeout); | |
1da177e4 | 672 | return ide_started; |
ff1bfbc1 | 673 | |
984c5e59 | 674 | out_end: |
aebf526b | 675 | if (blk_rq_is_scsi(rq) && rc == 0) { |
82ed4db4 | 676 | scsi_req(rq)->resid_len = 0; |
34b7d2c9 | 677 | blk_end_request_all(rq, 0); |
b65fac32 | 678 | hwif->rq = NULL; |
ff1bfbc1 | 679 | } else { |
f63174e7 BZ |
680 | if (sense && uptodate) |
681 | ide_cd_complete_failed_rq(drive, rq); | |
682 | ||
aebf526b | 683 | if (!blk_rq_is_passthrough(rq)) { |
a08915ba | 684 | if (cmd->nleft == 0) |
f63174e7 BZ |
685 | uptodate = 1; |
686 | } else { | |
687 | if (uptodate <= 0 && rq->errors == 0) | |
688 | rq->errors = -EIO; | |
689 | } | |
690 | ||
39c58f37 | 691 | if (uptodate == 0 && rq->bio) |
11071282 BP |
692 | if (ide_cd_error_cmd(drive, cmd)) |
693 | return ide_stopped; | |
c7ec8999 | 694 | |
f63174e7 | 695 | /* make sure it's fully ended */ |
aebf526b | 696 | if (blk_rq_is_passthrough(rq)) { |
82ed4db4 | 697 | scsi_req(rq)->resid_len -= cmd->nbytes - cmd->nleft; |
c7ec8999 | 698 | if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE)) |
82ed4db4 | 699 | scsi_req(rq)->resid_len += cmd->last_xfer_len; |
c7ec8999 BZ |
700 | } |
701 | ||
34b7d2c9 | 702 | ide_complete_rq(drive, uptodate ? 0 : -EIO, blk_rq_bytes(rq)); |
f63174e7 | 703 | |
8a116974 BZ |
704 | if (sense && rc == 2) |
705 | ide_error(drive, "request sense failure", stat); | |
ff1bfbc1 BZ |
706 | } |
707 | return ide_stopped; | |
1da177e4 LT |
708 | } |
709 | ||
21ea1f0f | 710 | static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) |
1da177e4 | 711 | { |
21ea1f0f | 712 | struct cdrom_info *cd = drive->driver_data; |
a08915ba | 713 | struct request_queue *q = drive->queue; |
21ea1f0f BZ |
714 | int write = rq_data_dir(rq) == WRITE; |
715 | unsigned short sectors_per_frame = | |
e1defc4f | 716 | queue_logical_block_size(q) >> SECTOR_BITS; |
1da177e4 | 717 | |
8652b31a | 718 | ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, " |
088b1b88 | 719 | "secs_per_frame: %u", |
8652b31a | 720 | rq->cmd[0], rq->cmd_flags, sectors_per_frame); |
fc8323f7 | 721 | |
21ea1f0f | 722 | if (write) { |
5a3ea3b4 | 723 | /* disk has become write protected */ |
e0458ccb | 724 | if (get_disk_ro(cd->disk)) |
21ea1f0f | 725 | return ide_stopped; |
21ea1f0f BZ |
726 | } else { |
727 | /* | |
728 | * We may be retrying this request after an error. Fix up any | |
729 | * weirdness which might be present in the request packet. | |
730 | */ | |
a08915ba | 731 | q->prep_rq_fn(q, rq); |
1da177e4 LT |
732 | } |
733 | ||
a08915ba | 734 | /* fs requests *must* be hardware frame aligned */ |
9780e2dd TH |
735 | if ((blk_rq_sectors(rq) & (sectors_per_frame - 1)) || |
736 | (blk_rq_pos(rq) & (sectors_per_frame - 1))) | |
a08915ba BZ |
737 | return ide_stopped; |
738 | ||
739 | /* use DMA, if possible */ | |
740 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); | |
1da177e4 | 741 | |
21ea1f0f BZ |
742 | if (write) |
743 | cd->devinfo.media_written = 1; | |
1da177e4 | 744 | |
8652b31a BZ |
745 | rq->timeout = ATAPI_WAIT_PC; |
746 | ||
b6ca440a | 747 | return ide_started; |
1da177e4 LT |
748 | } |
749 | ||
b6ca440a | 750 | static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) |
1da177e4 | 751 | { |
1da177e4 | 752 | |
088b1b88 BP |
753 | ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x", |
754 | rq->cmd[0], rq->cmd_type); | |
fc8323f7 | 755 | |
aebf526b | 756 | if (blk_rq_is_scsi(rq)) |
e8064021 | 757 | rq->rq_flags |= RQF_QUIET; |
c9f56a80 | 758 | else |
e8064021 | 759 | rq->rq_flags &= ~RQF_FAILED; |
1da177e4 | 760 | |
12469ac0 | 761 | drive->dma = 0; |
1da177e4 | 762 | |
5a3ea3b4 | 763 | /* sg request */ |
02e7cf8f | 764 | if (rq->bio) { |
e5318b53 | 765 | struct request_queue *q = drive->queue; |
02e7cf8f | 766 | char *buf = bio_data(rq->bio); |
e5318b53 | 767 | unsigned int alignment; |
e5318b53 | 768 | |
12469ac0 | 769 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
1da177e4 LT |
770 | |
771 | /* | |
772 | * check if dma is safe | |
5d9e4ea5 LT |
773 | * |
774 | * NOTE! The "len" and "addr" checks should possibly have | |
775 | * separate masks. | |
1da177e4 | 776 | */ |
e5318b53 | 777 | alignment = queue_dma_alignment(q) | q->dma_pad_mask; |
9bd27cba | 778 | if ((unsigned long)buf & alignment |
34b7d2c9 | 779 | || blk_rq_bytes(rq) & q->dma_pad_mask |
efa402d5 | 780 | || object_is_on_stack(buf)) |
12469ac0 | 781 | drive->dma = 0; |
1da177e4 | 782 | } |
1da177e4 LT |
783 | } |
784 | ||
99384aea | 785 | static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, |
e5e076a3 | 786 | sector_t block) |
1da177e4 | 787 | { |
b788ee9c | 788 | struct ide_cmd cmd; |
3307d0d8 CH |
789 | int uptodate = 0; |
790 | unsigned int nsectors; | |
b788ee9c | 791 | |
088b1b88 BP |
792 | ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu", |
793 | rq->cmd[0], (unsigned long long)block); | |
794 | ||
795 | if (drive->debug_mask & IDE_DBG_RQ) | |
796 | blk_dump_rq_flags(rq, "ide_cd_do_request"); | |
fc8323f7 | 797 | |
aebf526b CH |
798 | switch (req_op(rq)) { |
799 | default: | |
8652b31a | 800 | if (cdrom_start_rw(drive, rq) == ide_stopped) |
e0458ccb | 801 | goto out_end; |
33659ebb | 802 | break; |
aebf526b CH |
803 | case REQ_OP_SCSI_IN: |
804 | case REQ_OP_SCSI_OUT: | |
2f5a8e80 | 805 | handle_pc: |
7fcebda5 BP |
806 | if (!rq->timeout) |
807 | rq->timeout = ATAPI_WAIT_PC; | |
b6ca440a | 808 | cdrom_do_block_pc(drive, rq); |
33659ebb | 809 | break; |
aebf526b CH |
810 | case REQ_OP_DRV_IN: |
811 | case REQ_OP_DRV_OUT: | |
2f5a8e80 CH |
812 | switch (ide_req(rq)->type) { |
813 | case ATA_PRIV_MISC: | |
814 | /* right now this can only be a reset... */ | |
815 | uptodate = 1; | |
816 | goto out_end; | |
817 | case ATA_PRIV_SENSE: | |
818 | case ATA_PRIV_PC: | |
819 | goto handle_pc; | |
aebf526b CH |
820 | default: |
821 | BUG(); | |
2f5a8e80 | 822 | } |
33659ebb | 823 | } |
b6ca440a | 824 | |
c457ce87 BP |
825 | /* prepare sense request for this command */ |
826 | ide_prep_sense(drive, rq); | |
827 | ||
b788ee9c BZ |
828 | memset(&cmd, 0, sizeof(cmd)); |
829 | ||
830 | if (rq_data_dir(rq)) | |
831 | cmd.tf_flags |= IDE_TFLAG_WRITE; | |
832 | ||
833 | cmd.rq = rq; | |
834 | ||
aebf526b | 835 | if (!blk_rq_is_passthrough(rq) || blk_rq_bytes(rq)) { |
34b7d2c9 | 836 | ide_init_sg_cmd(&cmd, blk_rq_bytes(rq)); |
a08915ba BZ |
837 | ide_map_sg(drive, &cmd); |
838 | } | |
839 | ||
b788ee9c | 840 | return ide_issue_pc(drive, &cmd); |
e0458ccb | 841 | out_end: |
5b93629b | 842 | nsectors = blk_rq_sectors(rq); |
f63174e7 BZ |
843 | |
844 | if (nsectors == 0) | |
845 | nsectors = 1; | |
846 | ||
847 | ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9); | |
848 | ||
e0458ccb | 849 | return ide_stopped; |
1da177e4 LT |
850 | } |
851 | ||
5a3ea3b4 | 852 | /* |
1da177e4 LT |
853 | * Ioctl handling. |
854 | * | |
5a3ea3b4 BP |
855 | * Routines which queue packet commands take as a final argument a pointer to a |
856 | * request_sense struct. If execution of the command results in an error with a | |
857 | * CHECK CONDITION status, this structure will be filled with the results of the | |
858 | * subsequent request sense command. The pointer can also be NULL, in which case | |
859 | * no sense information is returned. | |
1da177e4 | 860 | */ |
e5e076a3 | 861 | static void msf_from_bcd(struct atapi_msf *msf) |
1da177e4 | 862 | { |
fc99856a AB |
863 | msf->minute = bcd2bin(msf->minute); |
864 | msf->second = bcd2bin(msf->second); | |
865 | msf->frame = bcd2bin(msf->frame); | |
1da177e4 LT |
866 | } |
867 | ||
f9afd18b | 868 | int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 | 869 | { |
1da177e4 LT |
870 | struct cdrom_info *info = drive->driver_data; |
871 | struct cdrom_device_info *cdi = &info->devinfo; | |
5f828546 | 872 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 873 | |
088b1b88 | 874 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 875 | |
5f828546 FT |
876 | memset(cmd, 0, BLK_MAX_CDB); |
877 | cmd[0] = GPCMD_TEST_UNIT_READY; | |
1da177e4 | 878 | |
cdf6000d | 879 | /* |
5a3ea3b4 BP |
880 | * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs |
881 | * instead of supporting the LOAD_UNLOAD opcode. | |
cdf6000d | 882 | */ |
5f828546 | 883 | cmd[7] = cdi->sanyo_slot % 3; |
1da177e4 | 884 | |
e8064021 | 885 | return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, RQF_QUIET); |
1da177e4 LT |
886 | } |
887 | ||
1da177e4 LT |
888 | static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, |
889 | unsigned long *sectors_per_frame, | |
890 | struct request_sense *sense) | |
891 | { | |
892 | struct { | |
141d3b27 HH |
893 | __be32 lba; |
894 | __be32 blocklen; | |
1da177e4 LT |
895 | } capbuf; |
896 | ||
897 | int stat; | |
5f828546 FT |
898 | unsigned char cmd[BLK_MAX_CDB]; |
899 | unsigned len = sizeof(capbuf); | |
938bb03d | 900 | u32 blocklen; |
1da177e4 | 901 | |
088b1b88 | 902 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 903 | |
5f828546 FT |
904 | memset(cmd, 0, BLK_MAX_CDB); |
905 | cmd[0] = GPCMD_READ_CDVD_CAPACITY; | |
1da177e4 | 906 | |
5f828546 | 907 | stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, |
e8064021 | 908 | RQF_QUIET); |
e8e7b9eb JA |
909 | if (stat) |
910 | return stat; | |
911 | ||
912 | /* | |
af054ed0 DM |
913 | * Sanity check the given block size, in so far as making |
914 | * sure the sectors_per_frame we give to the caller won't | |
915 | * end up being bogus. | |
e8e7b9eb | 916 | */ |
938bb03d | 917 | blocklen = be32_to_cpu(capbuf.blocklen); |
af054ed0 | 918 | blocklen = (blocklen >> SECTOR_BITS) << SECTOR_BITS; |
938bb03d PT |
919 | switch (blocklen) { |
920 | case 512: | |
921 | case 1024: | |
922 | case 2048: | |
923 | case 4096: | |
e8e7b9eb JA |
924 | break; |
925 | default: | |
d9ae6243 FP |
926 | printk_once(KERN_ERR PFX "%s: weird block size %u; " |
927 | "setting default block size to 2048\n", | |
fc8323f7 | 928 | drive->name, blocklen); |
938bb03d | 929 | blocklen = 2048; |
e8e7b9eb | 930 | break; |
1da177e4 LT |
931 | } |
932 | ||
e8e7b9eb | 933 | *capacity = 1 + be32_to_cpu(capbuf.lba); |
938bb03d | 934 | *sectors_per_frame = blocklen >> SECTOR_BITS; |
71b429ca | 935 | |
088b1b88 BP |
936 | ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu", |
937 | *capacity, *sectors_per_frame); | |
71b429ca | 938 | |
e8e7b9eb | 939 | return 0; |
1da177e4 LT |
940 | } |
941 | ||
942 | static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, | |
943 | int format, char *buf, int buflen, | |
944 | struct request_sense *sense) | |
945 | { | |
5f828546 | 946 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 947 | |
088b1b88 | 948 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 949 | |
5f828546 | 950 | memset(cmd, 0, BLK_MAX_CDB); |
1da177e4 | 951 | |
5f828546 FT |
952 | cmd[0] = GPCMD_READ_TOC_PMA_ATIP; |
953 | cmd[6] = trackno; | |
954 | cmd[7] = (buflen >> 8); | |
955 | cmd[8] = (buflen & 0xff); | |
956 | cmd[9] = (format << 6); | |
1da177e4 LT |
957 | |
958 | if (msf_flag) | |
5f828546 | 959 | cmd[1] = 2; |
1da177e4 | 960 | |
e8064021 | 961 | return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, RQF_QUIET); |
1da177e4 LT |
962 | } |
963 | ||
1da177e4 | 964 | /* Try to read the entire TOC for the disk into our internal buffer. */ |
17802998 | 965 | int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 LT |
966 | { |
967 | int stat, ntracks, i; | |
968 | struct cdrom_info *info = drive->driver_data; | |
969 | struct cdrom_device_info *cdi = &info->devinfo; | |
970 | struct atapi_toc *toc = info->toc; | |
971 | struct { | |
972 | struct atapi_toc_header hdr; | |
973 | struct atapi_toc_entry ent; | |
974 | } ms_tmp; | |
975 | long last_written; | |
976 | unsigned long sectors_per_frame = SECTORS_PER_FRAME; | |
977 | ||
088b1b88 | 978 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 979 | |
1da177e4 | 980 | if (toc == NULL) { |
5a3ea3b4 | 981 | /* try to allocate space */ |
2a91f3e5 | 982 | toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); |
1da177e4 | 983 | if (toc == NULL) { |
fc8323f7 | 984 | printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n", |
83c8565d | 985 | drive->name); |
1da177e4 LT |
986 | return -ENOMEM; |
987 | } | |
2a91f3e5 | 988 | info->toc = toc; |
1da177e4 LT |
989 | } |
990 | ||
5a3ea3b4 BP |
991 | /* |
992 | * Check to see if the existing data is still valid. If it is, | |
993 | * just return. | |
994 | */ | |
1da177e4 LT |
995 | (void) cdrom_check_status(drive, sense); |
996 | ||
570f89ea | 997 | if (drive->atapi_flags & IDE_AFLAG_TOC_VALID) |
1da177e4 LT |
998 | return 0; |
999 | ||
5a3ea3b4 | 1000 | /* try to get the total cdrom capacity and sector size */ |
1da177e4 LT |
1001 | stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame, |
1002 | sense); | |
1003 | if (stat) | |
1004 | toc->capacity = 0x1fffff; | |
1005 | ||
1006 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
5a3ea3b4 | 1007 | /* save a private copy of the TOC capacity for error handling */ |
dbe217af AC |
1008 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1009 | ||
e1defc4f MP |
1010 | blk_queue_logical_block_size(drive->queue, |
1011 | sectors_per_frame << SECTOR_BITS); | |
1da177e4 | 1012 | |
5a3ea3b4 | 1013 | /* first read just the header, so we know how long the TOC is */ |
1da177e4 LT |
1014 | stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, |
1015 | sizeof(struct atapi_toc_header), sense); | |
2a91f3e5 JJ |
1016 | if (stat) |
1017 | return stat; | |
1da177e4 | 1018 | |
570f89ea | 1019 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1020 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1021 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1022 | } |
1da177e4 LT |
1023 | |
1024 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; | |
1025 | if (ntracks <= 0) | |
1026 | return -EIO; | |
1027 | if (ntracks > MAX_TRACKS) | |
1028 | ntracks = MAX_TRACKS; | |
1029 | ||
5a3ea3b4 | 1030 | /* now read the whole schmeer */ |
1da177e4 LT |
1031 | stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, |
1032 | (char *)&toc->hdr, | |
1033 | sizeof(struct atapi_toc_header) + | |
1034 | (ntracks + 1) * | |
1035 | sizeof(struct atapi_toc_entry), sense); | |
1036 | ||
1037 | if (stat && toc->hdr.first_track > 1) { | |
5a3ea3b4 BP |
1038 | /* |
1039 | * Cds with CDI tracks only don't have any TOC entries, despite | |
1040 | * of this the returned values are | |
1041 | * first_track == last_track = number of CDI tracks + 1, | |
1042 | * so that this case is indistinguishable from the same layout | |
1043 | * plus an additional audio track. If we get an error for the | |
1044 | * regular case, we assume a CDI without additional audio | |
1045 | * tracks. In this case the readable TOC is empty (CDI tracks | |
1046 | * are not included) and only holds the Leadout entry. | |
1047 | * | |
1048 | * Heiko Eißfeldt. | |
1049 | */ | |
1da177e4 LT |
1050 | ntracks = 0; |
1051 | stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, | |
1052 | (char *)&toc->hdr, | |
1053 | sizeof(struct atapi_toc_header) + | |
1054 | (ntracks + 1) * | |
1055 | sizeof(struct atapi_toc_entry), | |
1056 | sense); | |
cdf6000d | 1057 | if (stat) |
1da177e4 | 1058 | return stat; |
cdf6000d | 1059 | |
570f89ea | 1060 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1061 | toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT); |
1062 | toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT); | |
cdf6000d | 1063 | } else { |
1da177e4 LT |
1064 | toc->hdr.first_track = CDROM_LEADOUT; |
1065 | toc->hdr.last_track = CDROM_LEADOUT; | |
1066 | } | |
1067 | } | |
1068 | ||
1069 | if (stat) | |
1070 | return stat; | |
1071 | ||
7eb43fd2 | 1072 | toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); |
1da177e4 | 1073 | |
570f89ea | 1074 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1075 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1076 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1077 | } |
1da177e4 | 1078 | |
cdf6000d | 1079 | for (i = 0; i <= ntracks; i++) { |
570f89ea BP |
1080 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
1081 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) | |
fc99856a | 1082 | toc->ent[i].track = bcd2bin(toc->ent[i].track); |
1da177e4 LT |
1083 | msf_from_bcd(&toc->ent[i].addr.msf); |
1084 | } | |
9ce70fb2 PC |
1085 | toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, |
1086 | toc->ent[i].addr.msf.second, | |
1087 | toc->ent[i].addr.msf.frame); | |
1da177e4 LT |
1088 | } |
1089 | ||
1da177e4 | 1090 | if (toc->hdr.first_track != CDROM_LEADOUT) { |
5a3ea3b4 | 1091 | /* read the multisession information */ |
1da177e4 LT |
1092 | stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, |
1093 | sizeof(ms_tmp), sense); | |
2a91f3e5 JJ |
1094 | if (stat) |
1095 | return stat; | |
1da177e4 LT |
1096 | |
1097 | toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); | |
1098 | } else { | |
e5e076a3 BP |
1099 | ms_tmp.hdr.last_track = CDROM_LEADOUT; |
1100 | ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; | |
1da177e4 LT |
1101 | toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ |
1102 | } | |
1103 | ||
570f89ea | 1104 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
5a3ea3b4 | 1105 | /* re-read multisession information using MSF format */ |
1da177e4 LT |
1106 | stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, |
1107 | sizeof(ms_tmp), sense); | |
1108 | if (stat) | |
1109 | return stat; | |
1110 | ||
9ce70fb2 | 1111 | msf_from_bcd(&ms_tmp.ent.addr.msf); |
1da177e4 | 1112 | toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, |
9ce70fb2 | 1113 | ms_tmp.ent.addr.msf.second, |
1da177e4 LT |
1114 | ms_tmp.ent.addr.msf.frame); |
1115 | } | |
1da177e4 LT |
1116 | |
1117 | toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); | |
1118 | ||
5a3ea3b4 | 1119 | /* now try to get the total cdrom capacity */ |
1da177e4 LT |
1120 | stat = cdrom_get_last_written(cdi, &last_written); |
1121 | if (!stat && (last_written > toc->capacity)) { | |
1122 | toc->capacity = last_written; | |
1123 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
dbe217af | 1124 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1da177e4 LT |
1125 | } |
1126 | ||
1127 | /* Remember that we've read this stuff. */ | |
570f89ea | 1128 | drive->atapi_flags |= IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
1129 | |
1130 | return 0; | |
1131 | } | |
1132 | ||
17802998 | 1133 | int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) |
9235e68b EP |
1134 | { |
1135 | struct cdrom_info *info = drive->driver_data; | |
1136 | struct cdrom_device_info *cdi = &info->devinfo; | |
1137 | struct packet_command cgc; | |
455d80a9 | 1138 | int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; |
9235e68b | 1139 | |
088b1b88 | 1140 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1141 | |
570f89ea | 1142 | if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0) |
455d80a9 | 1143 | size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; |
9235e68b | 1144 | |
455d80a9 | 1145 | init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); |
5a3ea3b4 BP |
1146 | do { |
1147 | /* we seem to get stat=0x01,err=0x00 the first time (??) */ | |
9235e68b EP |
1148 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); |
1149 | if (!stat) | |
1150 | break; | |
1151 | } while (--attempts); | |
1152 | return stat; | |
1153 | } | |
1154 | ||
17802998 | 1155 | void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) |
9235e68b | 1156 | { |
4fe67178 | 1157 | struct cdrom_info *cd = drive->driver_data; |
481c8c64 BZ |
1158 | u16 curspeed, maxspeed; |
1159 | ||
088b1b88 | 1160 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1161 | |
570f89ea | 1162 | if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) { |
141d3b27 HH |
1163 | curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]); |
1164 | maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]); | |
9235e68b | 1165 | } else { |
141d3b27 HH |
1166 | curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]); |
1167 | maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]); | |
9235e68b | 1168 | } |
481c8c64 | 1169 | |
088b1b88 BP |
1170 | ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u", |
1171 | curspeed, maxspeed); | |
71b429ca | 1172 | |
72db37b2 JL |
1173 | cd->current_speed = DIV_ROUND_CLOSEST(curspeed, 176); |
1174 | cd->max_speed = DIV_ROUND_CLOSEST(maxspeed, 176); | |
9235e68b EP |
1175 | } |
1176 | ||
20e7f7ef BZ |
1177 | #define IDE_CD_CAPABILITIES \ |
1178 | (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ | |
1179 | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ | |
1180 | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ | |
1181 | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ | |
1182 | CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) | |
1da177e4 | 1183 | |
853fe1bf | 1184 | static const struct cdrom_device_ops ide_cdrom_dops = { |
1da177e4 LT |
1185 | .open = ide_cdrom_open_real, |
1186 | .release = ide_cdrom_release_real, | |
1187 | .drive_status = ide_cdrom_drive_status, | |
5b03a1b1 | 1188 | .check_events = ide_cdrom_check_events_real, |
1da177e4 LT |
1189 | .tray_move = ide_cdrom_tray_move, |
1190 | .lock_door = ide_cdrom_lock_door, | |
1191 | .select_speed = ide_cdrom_select_speed, | |
1192 | .get_last_session = ide_cdrom_get_last_session, | |
1193 | .get_mcn = ide_cdrom_get_mcn, | |
1194 | .reset = ide_cdrom_reset, | |
1195 | .audio_ioctl = ide_cdrom_audio_ioctl, | |
20e7f7ef | 1196 | .capability = IDE_CD_CAPABILITIES, |
1da177e4 LT |
1197 | .generic_packet = ide_cdrom_packet, |
1198 | }; | |
1199 | ||
9ce70fb2 | 1200 | static int ide_cdrom_register(ide_drive_t *drive, int nslots) |
1da177e4 LT |
1201 | { |
1202 | struct cdrom_info *info = drive->driver_data; | |
1203 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1204 | ||
088b1b88 | 1205 | ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots); |
fc8323f7 | 1206 | |
1da177e4 | 1207 | devinfo->ops = &ide_cdrom_dops; |
2bc4cf2d | 1208 | devinfo->speed = info->current_speed; |
1da177e4 | 1209 | devinfo->capacity = nslots; |
2a91f3e5 | 1210 | devinfo->handle = drive; |
1da177e4 | 1211 | strcpy(devinfo->name, drive->name); |
1da177e4 | 1212 | |
570f89ea | 1213 | if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT) |
3cbd814e BZ |
1214 | devinfo->mask |= CDC_SELECT_SPEED; |
1215 | ||
1da177e4 LT |
1216 | devinfo->disk = info->disk; |
1217 | return register_cdrom(devinfo); | |
1218 | } | |
1219 | ||
e5e076a3 | 1220 | static int ide_cdrom_probe_capabilities(ide_drive_t *drive) |
1da177e4 | 1221 | { |
4fe67178 BZ |
1222 | struct cdrom_info *cd = drive->driver_data; |
1223 | struct cdrom_device_info *cdi = &cd->devinfo; | |
455d80a9 BZ |
1224 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; |
1225 | mechtype_t mechtype; | |
1da177e4 LT |
1226 | int nslots = 1; |
1227 | ||
088b1b88 BP |
1228 | ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx", |
1229 | drive->media, drive->atapi_flags); | |
fc8323f7 | 1230 | |
3f1b86d8 BZ |
1231 | cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | |
1232 | CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | | |
1233 | CDC_MO_DRIVE | CDC_RAM); | |
1234 | ||
1da177e4 | 1235 | if (drive->media == ide_optical) { |
3f1b86d8 | 1236 | cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); |
fc8323f7 | 1237 | printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n", |
83c8565d | 1238 | drive->name); |
1da177e4 LT |
1239 | return nslots; |
1240 | } | |
1241 | ||
570f89ea BP |
1242 | if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) { |
1243 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; | |
3f1b86d8 | 1244 | cdi->mask &= ~CDC_PLAY_AUDIO; |
1da177e4 LT |
1245 | return nslots; |
1246 | } | |
1247 | ||
1248 | /* | |
5a3ea3b4 BP |
1249 | * We have to cheat a little here. the packet will eventually be queued |
1250 | * with ide_cdrom_packet(), which extracts the drive from cdi->handle. | |
1251 | * Since this device hasn't been registered with the Uniform layer yet, | |
1252 | * it can't do this. Same goes for cdi->ops. | |
1da177e4 | 1253 | */ |
2a91f3e5 | 1254 | cdi->handle = drive; |
1da177e4 LT |
1255 | cdi->ops = &ide_cdrom_dops; |
1256 | ||
455d80a9 | 1257 | if (ide_cdrom_get_capabilities(drive, buf)) |
1da177e4 LT |
1258 | return 0; |
1259 | ||
455d80a9 | 1260 | if ((buf[8 + 6] & 0x01) == 0) |
42619d35 | 1261 | drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; |
455d80a9 | 1262 | if (buf[8 + 6] & 0x08) |
570f89ea | 1263 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; |
455d80a9 | 1264 | if (buf[8 + 3] & 0x01) |
3f1b86d8 | 1265 | cdi->mask &= ~CDC_CD_R; |
455d80a9 | 1266 | if (buf[8 + 3] & 0x02) |
3f1b86d8 | 1267 | cdi->mask &= ~(CDC_CD_RW | CDC_RAM); |
455d80a9 | 1268 | if (buf[8 + 2] & 0x38) |
3f1b86d8 | 1269 | cdi->mask &= ~CDC_DVD; |
455d80a9 | 1270 | if (buf[8 + 3] & 0x20) |
3f1b86d8 | 1271 | cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); |
455d80a9 | 1272 | if (buf[8 + 3] & 0x10) |
3f1b86d8 | 1273 | cdi->mask &= ~CDC_DVD_R; |
570f89ea | 1274 | if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK)) |
3f1b86d8 | 1275 | cdi->mask &= ~CDC_PLAY_AUDIO; |
455d80a9 BZ |
1276 | |
1277 | mechtype = buf[8 + 6] >> 5; | |
f20f2586 BP |
1278 | if (mechtype == mechtype_caddy || |
1279 | mechtype == mechtype_popup || | |
1280 | (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE)) | |
3f1b86d8 | 1281 | cdi->mask |= CDC_CLOSE_TRAY; |
1da177e4 | 1282 | |
1da177e4 | 1283 | if (cdi->sanyo_slot > 0) { |
3f1b86d8 | 1284 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 | 1285 | nslots = 3; |
cdf6000d BZ |
1286 | } else if (mechtype == mechtype_individual_changer || |
1287 | mechtype == mechtype_cartridge_changer) { | |
2609d06d BZ |
1288 | nslots = cdrom_number_of_slots(cdi); |
1289 | if (nslots > 1) | |
3f1b86d8 | 1290 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 LT |
1291 | } |
1292 | ||
455d80a9 | 1293 | ide_cdrom_update_speed(drive, buf); |
4fe67178 | 1294 | |
fc8323f7 | 1295 | printk(KERN_INFO PFX "%s: ATAPI", drive->name); |
4fe67178 BZ |
1296 | |
1297 | /* don't print speed if the drive reported 0 */ | |
2bc4cf2d BZ |
1298 | if (cd->max_speed) |
1299 | printk(KERN_CONT " %dX", cd->max_speed); | |
4fe67178 | 1300 | |
3f1b86d8 | 1301 | printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); |
1da177e4 | 1302 | |
3f1b86d8 BZ |
1303 | if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) |
1304 | printk(KERN_CONT " DVD%s%s", | |
1305 | (cdi->mask & CDC_DVD_R) ? "" : "-R", | |
419a5b67 | 1306 | (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM"); |
1da177e4 | 1307 | |
3f1b86d8 BZ |
1308 | if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) |
1309 | printk(KERN_CONT " CD%s%s", | |
1310 | (cdi->mask & CDC_CD_R) ? "" : "-R", | |
1311 | (cdi->mask & CDC_CD_RW) ? "" : "/RW"); | |
1da177e4 | 1312 | |
3f1b86d8 BZ |
1313 | if ((cdi->mask & CDC_SELECT_DISC) == 0) |
1314 | printk(KERN_CONT " changer w/%d slots", nslots); | |
1315 | else | |
1316 | printk(KERN_CONT " drive"); | |
1da177e4 | 1317 | |
fc8323f7 BP |
1318 | printk(KERN_CONT ", %dkB Cache\n", |
1319 | be16_to_cpup((__be16 *)&buf[8 + 12])); | |
1da177e4 LT |
1320 | |
1321 | return nslots; | |
1322 | } | |
1323 | ||
5a3ea3b4 | 1324 | /* standard prep_rq_fn that builds 10 byte cmds */ |
165125e1 | 1325 | static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) |
1da177e4 | 1326 | { |
e1defc4f | 1327 | int hard_sect = queue_logical_block_size(q); |
5b93629b TH |
1328 | long block = (long)blk_rq_pos(rq) / (hard_sect >> 9); |
1329 | unsigned long blocks = blk_rq_sectors(rq) / (hard_sect >> 9); | |
82ed4db4 | 1330 | struct scsi_request *req = scsi_req(rq); |
1da177e4 | 1331 | |
82ed4db4 | 1332 | memset(req->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
1333 | |
1334 | if (rq_data_dir(rq) == READ) | |
82ed4db4 | 1335 | req->cmd[0] = GPCMD_READ_10; |
1da177e4 | 1336 | else |
82ed4db4 | 1337 | req->cmd[0] = GPCMD_WRITE_10; |
1da177e4 LT |
1338 | |
1339 | /* | |
1340 | * fill in lba | |
1341 | */ | |
82ed4db4 CH |
1342 | req->cmd[2] = (block >> 24) & 0xff; |
1343 | req->cmd[3] = (block >> 16) & 0xff; | |
1344 | req->cmd[4] = (block >> 8) & 0xff; | |
1345 | req->cmd[5] = block & 0xff; | |
1da177e4 LT |
1346 | |
1347 | /* | |
1348 | * and transfer length | |
1349 | */ | |
82ed4db4 CH |
1350 | req->cmd[7] = (blocks >> 8) & 0xff; |
1351 | req->cmd[8] = blocks & 0xff; | |
1352 | req->cmd_len = 10; | |
1da177e4 LT |
1353 | return BLKPREP_OK; |
1354 | } | |
1355 | ||
1356 | /* | |
1357 | * Most of the SCSI commands are supported directly by ATAPI devices. | |
1358 | * This transform handles the few exceptions. | |
1359 | */ | |
1360 | static int ide_cdrom_prep_pc(struct request *rq) | |
1361 | { | |
82ed4db4 | 1362 | u8 *c = scsi_req(rq)->cmd; |
1da177e4 | 1363 | |
5a3ea3b4 | 1364 | /* transform 6-byte read/write commands to the 10-byte version */ |
1da177e4 LT |
1365 | if (c[0] == READ_6 || c[0] == WRITE_6) { |
1366 | c[8] = c[4]; | |
1367 | c[5] = c[3]; | |
1368 | c[4] = c[2]; | |
1369 | c[3] = c[1] & 0x1f; | |
1370 | c[2] = 0; | |
1371 | c[1] &= 0xe0; | |
1372 | c[0] += (READ_10 - READ_6); | |
82ed4db4 | 1373 | scsi_req(rq)->cmd_len = 10; |
1da177e4 LT |
1374 | return BLKPREP_OK; |
1375 | } | |
1376 | ||
1377 | /* | |
1378 | * it's silly to pretend we understand 6-byte sense commands, just | |
1379 | * reject with ILLEGAL_REQUEST and the caller should take the | |
1380 | * appropriate action | |
1381 | */ | |
1382 | if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { | |
1383 | rq->errors = ILLEGAL_REQUEST; | |
1384 | return BLKPREP_KILL; | |
1385 | } | |
9ce70fb2 | 1386 | |
1da177e4 LT |
1387 | return BLKPREP_OK; |
1388 | } | |
1389 | ||
165125e1 | 1390 | static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) |
1da177e4 | 1391 | { |
aebf526b | 1392 | if (!blk_rq_is_passthrough(rq)) |
1da177e4 | 1393 | return ide_cdrom_prep_fs(q, rq); |
aebf526b | 1394 | else if (blk_rq_is_scsi(rq)) |
1da177e4 LT |
1395 | return ide_cdrom_prep_pc(rq); |
1396 | ||
1397 | return 0; | |
1398 | } | |
1399 | ||
e59724c7 BZ |
1400 | struct cd_list_entry { |
1401 | const char *id_model; | |
1402 | const char *id_firmware; | |
1403 | unsigned int cd_flags; | |
1404 | }; | |
1405 | ||
5e657a9e BP |
1406 | #ifdef CONFIG_IDE_PROC_FS |
1407 | static sector_t ide_cdrom_capacity(ide_drive_t *drive) | |
1408 | { | |
1409 | unsigned long capacity, sectors_per_frame; | |
1410 | ||
1411 | if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL)) | |
1412 | return 0; | |
1413 | ||
1414 | return capacity * sectors_per_frame; | |
1415 | } | |
1416 | ||
6d703a81 | 1417 | static int idecd_capacity_proc_show(struct seq_file *m, void *v) |
5e657a9e | 1418 | { |
6d703a81 | 1419 | ide_drive_t *drive = m->private; |
5e657a9e | 1420 | |
6d703a81 AD |
1421 | seq_printf(m, "%llu\n", (long long)ide_cdrom_capacity(drive)); |
1422 | return 0; | |
1423 | } | |
1424 | ||
1425 | static int idecd_capacity_proc_open(struct inode *inode, struct file *file) | |
1426 | { | |
d9dda78b | 1427 | return single_open(file, idecd_capacity_proc_show, PDE_DATA(inode)); |
5e657a9e BP |
1428 | } |
1429 | ||
6d703a81 AD |
1430 | static const struct file_operations idecd_capacity_proc_fops = { |
1431 | .owner = THIS_MODULE, | |
1432 | .open = idecd_capacity_proc_open, | |
1433 | .read = seq_read, | |
1434 | .llseek = seq_lseek, | |
1435 | .release = single_release, | |
1436 | }; | |
1437 | ||
5e657a9e | 1438 | static ide_proc_entry_t idecd_proc[] = { |
6d703a81 AD |
1439 | { "capacity", S_IFREG|S_IRUGO, &idecd_capacity_proc_fops }, |
1440 | {} | |
5e657a9e BP |
1441 | }; |
1442 | ||
79cb3803 BZ |
1443 | static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive) |
1444 | { | |
1445 | return idecd_proc; | |
1446 | } | |
1447 | ||
1448 | static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive) | |
1449 | { | |
519d6808 | 1450 | return NULL; |
79cb3803 | 1451 | } |
5e657a9e BP |
1452 | #endif |
1453 | ||
e59724c7 | 1454 | static const struct cd_list_entry ide_cd_quirks_list[] = { |
e59724c7 | 1455 | /* SCR-3231 doesn't support the SET_CD_SPEED command. */ |
570f89ea | 1456 | { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT }, |
e59724c7 | 1457 | /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ |
570f89ea BP |
1458 | { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD | |
1459 | IDE_AFLAG_PRE_ATAPI12, }, | |
e59724c7 | 1460 | /* Vertos 300, some versions of this drive like to talk BCD. */ |
570f89ea | 1461 | { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, }, |
e59724c7 | 1462 | /* Vertos 600 ESD. */ |
570f89ea | 1463 | { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, }, |
e59724c7 BZ |
1464 | /* |
1465 | * Sanyo 3 CD changer uses a non-standard command for CD changing | |
1466 | * (by default standard ATAPI support for CD changers is used). | |
1467 | */ | |
570f89ea BP |
1468 | { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD }, |
1469 | { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD }, | |
1470 | { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD }, | |
e59724c7 | 1471 | /* Stingray 8X CD-ROM. */ |
570f89ea | 1472 | { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 }, |
e59724c7 BZ |
1473 | /* |
1474 | * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length | |
1475 | * mode sense page capabilities size, but older drives break. | |
1476 | */ | |
570f89ea BP |
1477 | { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, |
1478 | { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, | |
e59724c7 | 1479 | /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ |
570f89ea | 1480 | { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS }, |
e59724c7 BZ |
1481 | /* |
1482 | * Some drives used by Apple don't advertise audio play | |
1483 | * but they do support reading TOC & audio datas. | |
1484 | */ | |
570f89ea BP |
1485 | { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
1486 | { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1487 | { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1488 | { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1489 | { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
f3e85ee7 | 1490 | { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
f20f2586 | 1491 | { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
64c2eae2 | 1492 | { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
e59724c7 BZ |
1493 | { NULL, NULL, 0 } |
1494 | }; | |
1495 | ||
4dde4492 | 1496 | static unsigned int ide_cd_flags(u16 *id) |
e59724c7 BZ |
1497 | { |
1498 | const struct cd_list_entry *cle = ide_cd_quirks_list; | |
1499 | ||
1500 | while (cle->id_model) { | |
4dde4492 | 1501 | if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 && |
e59724c7 | 1502 | (cle->id_firmware == NULL || |
4dde4492 | 1503 | strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware))) |
e59724c7 BZ |
1504 | return cle->cd_flags; |
1505 | cle++; | |
1506 | } | |
1507 | ||
1508 | return 0; | |
1509 | } | |
1510 | ||
e5e076a3 | 1511 | static int ide_cdrom_setup(ide_drive_t *drive) |
1da177e4 | 1512 | { |
4fe67178 BZ |
1513 | struct cdrom_info *cd = drive->driver_data; |
1514 | struct cdrom_device_info *cdi = &cd->devinfo; | |
e698ea83 | 1515 | struct request_queue *q = drive->queue; |
4dde4492 BZ |
1516 | u16 *id = drive->id; |
1517 | char *fw_rev = (char *)&id[ATA_ID_FW_REV]; | |
1da177e4 LT |
1518 | int nslots; |
1519 | ||
088b1b88 | 1520 | ide_debug_log(IDE_DBG_PROBE, "enter"); |
fc8323f7 | 1521 | |
e698ea83 BZ |
1522 | blk_queue_prep_rq(q, ide_cdrom_prep_fn); |
1523 | blk_queue_dma_alignment(q, 31); | |
1524 | blk_queue_update_dma_pad(q, 15); | |
1525 | ||
fe11edfa BZ |
1526 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
1527 | drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id); | |
1da177e4 | 1528 | |
570f89ea | 1529 | if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) && |
4dde4492 | 1530 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1531 | drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD | |
1532 | IDE_AFLAG_TOCADDR_AS_BCD); | |
1533 | else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) && | |
4dde4492 | 1534 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1535 | drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD; |
1536 | else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD) | |
5a3ea3b4 BP |
1537 | /* 3 => use CD in slot 0 */ |
1538 | cdi->sanyo_slot = 3; | |
1da177e4 | 1539 | |
9ce70fb2 | 1540 | nslots = ide_cdrom_probe_capabilities(drive); |
1da177e4 | 1541 | |
e1defc4f | 1542 | blk_queue_logical_block_size(q, CD_FRAMESIZE); |
1da177e4 | 1543 | |
1da177e4 | 1544 | if (ide_cdrom_register(drive, nslots)) { |
fc8323f7 | 1545 | printk(KERN_ERR PFX "%s: %s failed to register device with the" |
83c8565d | 1546 | " cdrom driver.\n", drive->name, __func__); |
4fe67178 | 1547 | cd->devinfo.handle = NULL; |
1da177e4 LT |
1548 | return 1; |
1549 | } | |
1e874f44 BZ |
1550 | |
1551 | ide_proc_register_driver(drive, cd->driver); | |
1da177e4 LT |
1552 | return 0; |
1553 | } | |
1554 | ||
4031bbe4 | 1555 | static void ide_cd_remove(ide_drive_t *drive) |
1da177e4 LT |
1556 | { |
1557 | struct cdrom_info *info = drive->driver_data; | |
1558 | ||
088b1b88 | 1559 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1560 | |
7662d046 | 1561 | ide_proc_unregister_driver(drive, info->driver); |
8fed4368 | 1562 | device_del(&info->dev); |
1da177e4 LT |
1563 | del_gendisk(info->disk); |
1564 | ||
8fed4368 BZ |
1565 | mutex_lock(&idecd_ref_mutex); |
1566 | put_device(&info->dev); | |
1567 | mutex_unlock(&idecd_ref_mutex); | |
1da177e4 LT |
1568 | } |
1569 | ||
8fed4368 | 1570 | static void ide_cd_release(struct device *dev) |
1da177e4 | 1571 | { |
8fed4368 | 1572 | struct cdrom_info *info = to_ide_drv(dev, cdrom_info); |
1da177e4 LT |
1573 | struct cdrom_device_info *devinfo = &info->devinfo; |
1574 | ide_drive_t *drive = info->drive; | |
1575 | struct gendisk *g = info->disk; | |
1576 | ||
088b1b88 | 1577 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1578 | |
6044ec88 | 1579 | kfree(info->toc); |
0a0c4114 AM |
1580 | if (devinfo->handle == drive) |
1581 | unregister_cdrom(devinfo); | |
1da177e4 LT |
1582 | drive->driver_data = NULL; |
1583 | blk_queue_prep_rq(drive->queue, NULL); | |
1584 | g->private_data = NULL; | |
1585 | put_disk(g); | |
1586 | kfree(info); | |
1587 | } | |
1588 | ||
4031bbe4 | 1589 | static int ide_cd_probe(ide_drive_t *); |
1da177e4 | 1590 | |
7f3c868b | 1591 | static struct ide_driver ide_cdrom_driver = { |
8604affd | 1592 | .gen_driver = { |
4ef3b8f4 | 1593 | .owner = THIS_MODULE, |
8604affd BZ |
1594 | .name = "ide-cdrom", |
1595 | .bus = &ide_bus_type, | |
8604affd | 1596 | }, |
4031bbe4 RK |
1597 | .probe = ide_cd_probe, |
1598 | .remove = ide_cd_remove, | |
1da177e4 | 1599 | .version = IDECD_VERSION, |
99384aea | 1600 | .do_request = ide_cd_do_request, |
7662d046 | 1601 | #ifdef CONFIG_IDE_PROC_FS |
79cb3803 BZ |
1602 | .proc_entries = ide_cd_proc_entries, |
1603 | .proc_devsets = ide_cd_proc_devsets, | |
7662d046 | 1604 | #endif |
1da177e4 LT |
1605 | }; |
1606 | ||
488ca606 | 1607 | static int idecd_open(struct block_device *bdev, fmode_t mode) |
1da177e4 | 1608 | { |
6e9624b8 AB |
1609 | struct cdrom_info *info; |
1610 | int rc = -ENXIO; | |
1da177e4 | 1611 | |
2a48fc0a | 1612 | mutex_lock(&ide_cd_mutex); |
6e9624b8 | 1613 | info = ide_cd_get(bdev->bd_disk); |
9ce70fb2 | 1614 | if (!info) |
6e9624b8 | 1615 | goto out; |
1da177e4 | 1616 | |
488ca606 | 1617 | rc = cdrom_open(&info->devinfo, bdev, mode); |
1da177e4 LT |
1618 | if (rc < 0) |
1619 | ide_cd_put(info); | |
6e9624b8 | 1620 | out: |
2a48fc0a | 1621 | mutex_unlock(&ide_cd_mutex); |
1da177e4 LT |
1622 | return rc; |
1623 | } | |
1624 | ||
db2a144b | 1625 | static void idecd_release(struct gendisk *disk, fmode_t mode) |
1da177e4 | 1626 | { |
5aeddf90 | 1627 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1628 | |
2a48fc0a | 1629 | mutex_lock(&ide_cd_mutex); |
488ca606 | 1630 | cdrom_release(&info->devinfo, mode); |
1da177e4 LT |
1631 | |
1632 | ide_cd_put(info); | |
2a48fc0a | 1633 | mutex_unlock(&ide_cd_mutex); |
1da177e4 LT |
1634 | } |
1635 | ||
6a2900b6 CH |
1636 | static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
1637 | { | |
1638 | struct packet_command cgc; | |
1639 | char buffer[16]; | |
1640 | int stat; | |
1641 | char spindown; | |
1642 | ||
1643 | if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) | |
1644 | return -EFAULT; | |
1645 | ||
1646 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1647 | ||
1648 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1649 | if (stat) | |
1650 | return stat; | |
1651 | ||
1652 | buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); | |
1653 | return cdrom_mode_select(cdi, &cgc); | |
1654 | } | |
1655 | ||
1656 | static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) | |
1657 | { | |
1658 | struct packet_command cgc; | |
1659 | char buffer[16]; | |
1660 | int stat; | |
9ce70fb2 | 1661 | char spindown; |
6a2900b6 CH |
1662 | |
1663 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1664 | ||
1665 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1666 | if (stat) | |
1667 | return stat; | |
1668 | ||
1669 | spindown = buffer[11] & 0x0f; | |
9ce70fb2 | 1670 | if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) |
6a2900b6 CH |
1671 | return -EFAULT; |
1672 | return 0; | |
1673 | } | |
1674 | ||
8a6cfeb6 | 1675 | static int idecd_locked_ioctl(struct block_device *bdev, fmode_t mode, |
1da177e4 LT |
1676 | unsigned int cmd, unsigned long arg) |
1677 | { | |
5aeddf90 | 1678 | struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info); |
1da177e4 LT |
1679 | int err; |
1680 | ||
6a2900b6 | 1681 | switch (cmd) { |
9ce70fb2 | 1682 | case CDROMSETSPINDOWN: |
6a2900b6 | 1683 | return idecd_set_spindown(&info->devinfo, arg); |
9ce70fb2 | 1684 | case CDROMGETSPINDOWN: |
6a2900b6 CH |
1685 | return idecd_get_spindown(&info->devinfo, arg); |
1686 | default: | |
1687 | break; | |
9ce70fb2 | 1688 | } |
6a2900b6 | 1689 | |
1bddd9e6 | 1690 | err = generic_ide_ioctl(info->drive, bdev, cmd, arg); |
1da177e4 | 1691 | if (err == -EINVAL) |
488ca606 | 1692 | err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg); |
1da177e4 LT |
1693 | |
1694 | return err; | |
1695 | } | |
1696 | ||
8a6cfeb6 AB |
1697 | static int idecd_ioctl(struct block_device *bdev, fmode_t mode, |
1698 | unsigned int cmd, unsigned long arg) | |
1699 | { | |
1700 | int ret; | |
1701 | ||
2a48fc0a | 1702 | mutex_lock(&ide_cd_mutex); |
8a6cfeb6 | 1703 | ret = idecd_locked_ioctl(bdev, mode, cmd, arg); |
2a48fc0a | 1704 | mutex_unlock(&ide_cd_mutex); |
8a6cfeb6 AB |
1705 | |
1706 | return ret; | |
1707 | } | |
1708 | ||
1709 | ||
5b03a1b1 TH |
1710 | static unsigned int idecd_check_events(struct gendisk *disk, |
1711 | unsigned int clearing) | |
1da177e4 | 1712 | { |
5aeddf90 | 1713 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
5b03a1b1 | 1714 | return cdrom_check_events(&info->devinfo, clearing); |
1da177e4 LT |
1715 | } |
1716 | ||
1717 | static int idecd_revalidate_disk(struct gendisk *disk) | |
1718 | { | |
5aeddf90 | 1719 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1720 | struct request_sense sense; |
139c829d BZ |
1721 | |
1722 | ide_cd_read_toc(info->drive, &sense); | |
1723 | ||
1da177e4 LT |
1724 | return 0; |
1725 | } | |
1726 | ||
83d5cde4 | 1727 | static const struct block_device_operations idecd_ops = { |
9ce70fb2 | 1728 | .owner = THIS_MODULE, |
488ca606 AV |
1729 | .open = idecd_open, |
1730 | .release = idecd_release, | |
8a6cfeb6 | 1731 | .ioctl = idecd_ioctl, |
5b03a1b1 | 1732 | .check_events = idecd_check_events, |
9ce70fb2 | 1733 | .revalidate_disk = idecd_revalidate_disk |
1da177e4 LT |
1734 | }; |
1735 | ||
5a3ea3b4 | 1736 | /* module options */ |
35d9b17f BP |
1737 | static unsigned long debug_mask; |
1738 | module_param(debug_mask, ulong, 0644); | |
1739 | ||
1da177e4 LT |
1740 | MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); |
1741 | ||
4031bbe4 | 1742 | static int ide_cd_probe(ide_drive_t *drive) |
1da177e4 LT |
1743 | { |
1744 | struct cdrom_info *info; | |
1745 | struct gendisk *g; | |
1746 | struct request_sense sense; | |
1747 | ||
088b1b88 BP |
1748 | ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x", |
1749 | drive->driver_req, drive->media); | |
fc8323f7 | 1750 | |
1da177e4 LT |
1751 | if (!strstr("ide-cdrom", drive->driver_req)) |
1752 | goto failed; | |
2a924662 | 1753 | |
1da177e4 LT |
1754 | if (drive->media != ide_cdrom && drive->media != ide_optical) |
1755 | goto failed; | |
2a924662 | 1756 | |
35d9b17f | 1757 | drive->debug_mask = debug_mask; |
d6251d44 | 1758 | drive->irq_handler = cdrom_newpc_intr; |
35d9b17f | 1759 | |
f5e3c2fa | 1760 | info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); |
1da177e4 | 1761 | if (info == NULL) { |
fc8323f7 | 1762 | printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n", |
83c8565d | 1763 | drive->name); |
1da177e4 LT |
1764 | goto failed; |
1765 | } | |
1766 | ||
1767 | g = alloc_disk(1 << PARTN_BITS); | |
1768 | if (!g) | |
1769 | goto out_free_cd; | |
1770 | ||
1771 | ide_init_disk(g, drive); | |
1772 | ||
8fed4368 BZ |
1773 | info->dev.parent = &drive->gendev; |
1774 | info->dev.release = ide_cd_release; | |
02aa2a37 | 1775 | dev_set_name(&info->dev, "%s", dev_name(&drive->gendev)); |
8fed4368 BZ |
1776 | |
1777 | if (device_register(&info->dev)) | |
1778 | goto out_free_disk; | |
1da177e4 LT |
1779 | |
1780 | info->drive = drive; | |
1781 | info->driver = &ide_cdrom_driver; | |
1782 | info->disk = g; | |
1783 | ||
1784 | g->private_data = &info->driver; | |
1785 | ||
1786 | drive->driver_data = info; | |
1787 | ||
1da177e4 | 1788 | g->minors = 1; |
1da177e4 LT |
1789 | g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; |
1790 | if (ide_cdrom_setup(drive)) { | |
8fed4368 | 1791 | put_device(&info->dev); |
1da177e4 LT |
1792 | goto failed; |
1793 | } | |
1da177e4 | 1794 | |
139c829d | 1795 | ide_cd_read_toc(drive, &sense); |
1da177e4 | 1796 | g->fops = &idecd_ops; |
d4dc210f | 1797 | g->flags |= GENHD_FL_REMOVABLE | GENHD_FL_BLOCK_EVENTS_ON_EXCL_WRITE; |
0d52c756 | 1798 | device_add_disk(&drive->gendev, g); |
1da177e4 LT |
1799 | return 0; |
1800 | ||
8fed4368 BZ |
1801 | out_free_disk: |
1802 | put_disk(g); | |
1da177e4 LT |
1803 | out_free_cd: |
1804 | kfree(info); | |
1805 | failed: | |
8604affd | 1806 | return -ENODEV; |
1da177e4 LT |
1807 | } |
1808 | ||
1809 | static void __exit ide_cdrom_exit(void) | |
1810 | { | |
8604affd | 1811 | driver_unregister(&ide_cdrom_driver.gen_driver); |
1da177e4 | 1812 | } |
17514e8a BZ |
1813 | |
1814 | static int __init ide_cdrom_init(void) | |
1da177e4 | 1815 | { |
fc8323f7 | 1816 | printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n"); |
8604affd | 1817 | return driver_register(&ide_cdrom_driver.gen_driver); |
1da177e4 LT |
1818 | } |
1819 | ||
263756ec | 1820 | MODULE_ALIAS("ide:*m-cdrom*"); |
972560fb | 1821 | MODULE_ALIAS("ide-cd"); |
1da177e4 LT |
1822 | module_init(ide_cdrom_init); |
1823 | module_exit(ide_cdrom_exit); | |
1824 | MODULE_LICENSE("GPL"); |