Commit | Line | Data |
---|---|---|
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> | |
31 | #include <linux/delay.h> | |
32 | #include <linux/timer.h> | |
6d703a81 | 33 | #include <linux/seq_file.h> |
8a6cfeb6 | 34 | #include <linux/smp_lock.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 BP |
47 | #include <linux/irq.h> |
48 | #include <linux/io.h> | |
1da177e4 | 49 | #include <asm/byteorder.h> |
9aba468e | 50 | #include <linux/uaccess.h> |
1da177e4 LT |
51 | #include <asm/unaligned.h> |
52 | ||
53 | #include "ide-cd.h" | |
54 | ||
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 | ||
4aff5e23 | 102 | if (!sense || !rq || (rq->cmd_flags & REQ_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 PC |
124 | */ |
125 | if (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 LT |
166 | */ |
167 | if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP) | |
168 | if (sense->sense_key == 0x05 && sense->asc == 0x24) | |
169 | return; | |
170 | ||
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 || | |
33659ebb | 180 | failed_command->cmd_type != REQ_TYPE_FS) |
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 | /* | |
1f181d2b | 214 | * For REQ_TYPE_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) { | |
223 | if (failed->sense) { | |
c457ce87 BP |
224 | /* |
225 | * Sense is always read into drive->sense_data. | |
226 | * Copy back if the failed request has its | |
227 | * sense pointer set. | |
228 | */ | |
229 | memcpy(failed->sense, sense, 18); | |
299c4852 BZ |
230 | failed->sense_len = rq->sense_len; |
231 | } | |
239f7e25 | 232 | cdrom_analyze_sense_data(drive, failed); |
299c4852 BZ |
233 | |
234 | if (ide_end_rq(drive, failed, -EIO, blk_rq_bytes(failed))) | |
235 | BUG(); | |
236 | } else | |
239f7e25 | 237 | cdrom_analyze_sense_data(drive, NULL); |
299c4852 BZ |
238 | } |
239 | ||
805ec58a | 240 | |
5a3ea3b4 | 241 | /* |
805ec58a BP |
242 | * Allow the drive 5 seconds to recover; some devices will return NOT_READY |
243 | * while flushing data from cache. | |
244 | * | |
245 | * returns: 0 failed (write timeout expired) | |
246 | * 1 success | |
247 | */ | |
248 | static int ide_cd_breathe(ide_drive_t *drive, struct request *rq) | |
249 | { | |
250 | ||
251 | struct cdrom_info *info = drive->driver_data; | |
252 | ||
253 | if (!rq->errors) | |
254 | info->write_timeout = jiffies + ATAPI_WAIT_WRITE_BUSY; | |
255 | ||
256 | rq->errors = 1; | |
257 | ||
258 | if (time_after(jiffies, info->write_timeout)) | |
259 | return 0; | |
260 | else { | |
261 | struct request_queue *q = drive->queue; | |
262 | unsigned long flags; | |
263 | ||
264 | /* | |
265 | * take a breather relying on the unplug timer to kick us again | |
266 | */ | |
267 | ||
268 | spin_lock_irqsave(q->queue_lock, flags); | |
269 | blk_plug_device(q); | |
270 | spin_unlock_irqrestore(q->queue_lock, flags); | |
271 | ||
272 | return 1; | |
273 | } | |
274 | } | |
275 | ||
276 | /** | |
5a3ea3b4 BP |
277 | * Returns: |
278 | * 0: if the request should be continued. | |
8a116974 BZ |
279 | * 1: if the request will be going through error recovery. |
280 | * 2: if the request should be ended. | |
5a3ea3b4 | 281 | */ |
8e59bfde | 282 | static int cdrom_decode_status(ide_drive_t *drive, u8 stat) |
1da177e4 | 283 | { |
b73c7ee2 | 284 | ide_hwif_t *hwif = drive->hwif; |
b65fac32 | 285 | struct request *rq = hwif->rq; |
674f0ea1 | 286 | int err, sense_key, do_end_request = 0; |
1da177e4 | 287 | |
5a3ea3b4 | 288 | /* get the IDE error register */ |
64a57fe4 | 289 | err = ide_read_error(drive); |
1da177e4 LT |
290 | sense_key = err >> 4; |
291 | ||
98036abf BP |
292 | ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, rq->cmd_type: 0x%x, err: 0x%x, " |
293 | "stat 0x%x", | |
294 | rq->cmd[0], rq->cmd_type, err, stat); | |
fc8323f7 | 295 | |
33659ebb | 296 | if (rq->cmd_type == REQ_TYPE_SENSE) { |
5a3ea3b4 BP |
297 | /* |
298 | * We got an error trying to get sense info from the drive | |
299 | * (probably while trying to recover from a former error). | |
300 | * Just give up. | |
301 | */ | |
4aff5e23 | 302 | rq->cmd_flags |= REQ_FAILED; |
8a116974 | 303 | return 2; |
674f0ea1 | 304 | } |
1da177e4 | 305 | |
674f0ea1 | 306 | /* if we have an error, pass CHECK_CONDITION as the SCSI status byte */ |
33659ebb | 307 | if (rq->cmd_type == REQ_TYPE_BLOCK_PC && !rq->errors) |
674f0ea1 | 308 | rq->errors = SAM_STAT_CHECK_CONDITION; |
1da177e4 | 309 | |
674f0ea1 BZ |
310 | if (blk_noretry_request(rq)) |
311 | do_end_request = 1; | |
1da177e4 | 312 | |
674f0ea1 BZ |
313 | switch (sense_key) { |
314 | case NOT_READY: | |
33659ebb | 315 | if (rq->cmd_type == REQ_TYPE_FS && rq_data_dir(rq) == WRITE) { |
3c8a48e9 BP |
316 | if (ide_cd_breathe(drive, rq)) |
317 | return 1; | |
318 | } else { | |
e5e076a3 | 319 | cdrom_saw_media_change(drive); |
1da177e4 | 320 | |
33659ebb | 321 | if (rq->cmd_type == REQ_TYPE_FS && |
4c4762d1 | 322 | !(rq->cmd_flags & REQ_QUIET)) |
674f0ea1 BZ |
323 | printk(KERN_ERR PFX "%s: tray open\n", |
324 | drive->name); | |
1da177e4 | 325 | } |
674f0ea1 BZ |
326 | do_end_request = 1; |
327 | break; | |
328 | case UNIT_ATTENTION: | |
329 | cdrom_saw_media_change(drive); | |
1da177e4 | 330 | |
33659ebb | 331 | if (rq->cmd_type != REQ_TYPE_FS) |
674f0ea1 | 332 | return 0; |
1920c48d | 333 | |
5a3ea3b4 | 334 | /* |
674f0ea1 BZ |
335 | * Arrange to retry the request but be sure to give up if we've |
336 | * retried too many times. | |
5a3ea3b4 | 337 | */ |
674f0ea1 BZ |
338 | if (++rq->errors > ERROR_MAX) |
339 | do_end_request = 1; | |
340 | break; | |
341 | case ILLEGAL_REQUEST: | |
bbb89e3d | 342 | /* |
674f0ea1 BZ |
343 | * Don't print error message for this condition -- SFF8090i |
344 | * indicates that 5/24/00 is the correct response to a request | |
345 | * to close the tray if the drive doesn't have that capability. | |
346 | * | |
347 | * cdrom_log_sense() knows this! | |
bbb89e3d | 348 | */ |
674f0ea1 BZ |
349 | if (rq->cmd[0] == GPCMD_START_STOP_UNIT) |
350 | break; | |
351 | /* fall-through */ | |
352 | case DATA_PROTECT: | |
353 | /* | |
354 | * No point in retrying after an illegal request or data | |
355 | * protect error. | |
356 | */ | |
33659ebb | 357 | if (!(rq->cmd_flags & REQ_QUIET)) |
674f0ea1 BZ |
358 | ide_dump_status(drive, "command error", stat); |
359 | do_end_request = 1; | |
360 | break; | |
361 | case MEDIUM_ERROR: | |
362 | /* | |
363 | * No point in re-trying a zillion times on a bad sector. | |
364 | * If we got here the error is not correctable. | |
365 | */ | |
33659ebb | 366 | if (!(rq->cmd_flags & REQ_QUIET)) |
674f0ea1 BZ |
367 | ide_dump_status(drive, "media error " |
368 | "(bad sector)", stat); | |
369 | do_end_request = 1; | |
370 | break; | |
371 | case BLANK_CHECK: | |
372 | /* disk appears blank? */ | |
33659ebb | 373 | if (!(rq->cmd_flags & REQ_QUIET)) |
674f0ea1 BZ |
374 | ide_dump_status(drive, "media error (blank)", |
375 | stat); | |
376 | do_end_request = 1; | |
377 | break; | |
378 | default: | |
4c4762d1 | 379 | if (rq->cmd_type != REQ_TYPE_FS) |
674f0ea1 BZ |
380 | break; |
381 | if (err & ~ATA_ABORTED) { | |
382 | /* go to the default handler for other errors */ | |
383 | ide_error(drive, "cdrom_decode_status", stat); | |
384 | return 1; | |
385 | } else if (++rq->errors > ERROR_MAX) | |
386 | /* we've racked up too many retries, abort */ | |
387 | do_end_request = 1; | |
1da177e4 LT |
388 | } |
389 | ||
33659ebb | 390 | if (rq->cmd_type != REQ_TYPE_FS) { |
674f0ea1 BZ |
391 | rq->cmd_flags |= REQ_FAILED; |
392 | do_end_request = 1; | |
393 | } | |
394 | ||
395 | /* | |
396 | * End a request through request sense analysis when we have sense data. | |
397 | * We need this in order to perform end of media processing. | |
398 | */ | |
399 | if (do_end_request) | |
400 | goto end_request; | |
401 | ||
402 | /* if we got a CHECK_CONDITION status, queue a request sense command */ | |
403 | if (stat & ATA_ERR) | |
02e7cf8f | 404 | return ide_queue_sense_rq(drive, NULL) ? 2 : 1; |
674f0ea1 BZ |
405 | return 1; |
406 | ||
bbb89e3d | 407 | end_request: |
3a7d2484 | 408 | if (stat & ATA_ERR) { |
b65fac32 | 409 | hwif->rq = NULL; |
02e7cf8f | 410 | return ide_queue_sense_rq(drive, rq) ? 2 : 1; |
bbb89e3d | 411 | } else |
8a116974 | 412 | return 2; |
1da177e4 LT |
413 | } |
414 | ||
c7ec8999 | 415 | static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct ide_cmd *cmd) |
8ee69f5a | 416 | { |
c7ec8999 BZ |
417 | struct request *rq = cmd->rq; |
418 | ||
088b1b88 | 419 | ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]); |
fc8323f7 | 420 | |
8ee69f5a BZ |
421 | /* |
422 | * Some of the trailing request sense fields are optional, | |
423 | * and some drives don't send them. Sigh. | |
424 | */ | |
425 | if (rq->cmd[0] == GPCMD_REQUEST_SENSE && | |
59a4f6f3 TH |
426 | cmd->nleft > 0 && cmd->nleft <= 5) |
427 | cmd->nleft = 0; | |
8ee69f5a BZ |
428 | } |
429 | ||
5f828546 FT |
430 | int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, |
431 | int write, void *buffer, unsigned *bufflen, | |
432 | struct request_sense *sense, int timeout, | |
433 | unsigned int cmd_flags) | |
1da177e4 | 434 | { |
5f828546 FT |
435 | struct cdrom_info *info = drive->driver_data; |
436 | struct request_sense local_sense; | |
1da177e4 | 437 | int retries = 10; |
5f828546 | 438 | unsigned int flags = 0; |
1da177e4 | 439 | |
5f828546 FT |
440 | if (!sense) |
441 | sense = &local_sense; | |
1da177e4 | 442 | |
088b1b88 BP |
443 | ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, " |
444 | "cmd_flags: 0x%x", | |
445 | cmd[0], write, timeout, cmd_flags); | |
fc8323f7 | 446 | |
5a3ea3b4 | 447 | /* start of retry loop */ |
1da177e4 | 448 | do { |
5f828546 | 449 | struct request *rq; |
1da177e4 | 450 | int error; |
1da177e4 | 451 | |
5f828546 FT |
452 | rq = blk_get_request(drive->queue, write, __GFP_WAIT); |
453 | ||
454 | memcpy(rq->cmd, cmd, BLK_MAX_CDB); | |
455 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
456 | rq->sense = sense; | |
457 | rq->cmd_flags |= cmd_flags; | |
458 | rq->timeout = timeout; | |
459 | if (buffer) { | |
02e7cf8f TH |
460 | error = blk_rq_map_kern(drive->queue, rq, buffer, |
461 | *bufflen, GFP_NOIO); | |
462 | if (error) { | |
463 | blk_put_request(rq); | |
464 | return error; | |
465 | } | |
5f828546 FT |
466 | } |
467 | ||
468 | error = blk_execute_rq(drive->queue, info->disk, rq, 0); | |
469 | ||
470 | if (buffer) | |
c3a4d78c | 471 | *bufflen = rq->resid_len; |
5f828546 FT |
472 | |
473 | flags = rq->cmd_flags; | |
474 | blk_put_request(rq); | |
1da177e4 | 475 | |
5a3ea3b4 BP |
476 | /* |
477 | * FIXME: we should probably abort/retry or something in case of | |
478 | * failure. | |
479 | */ | |
5f828546 | 480 | if (flags & REQ_FAILED) { |
5a3ea3b4 BP |
481 | /* |
482 | * The request failed. Retry if it was due to a unit | |
483 | * attention status (usually means media was changed). | |
484 | */ | |
5f828546 | 485 | struct request_sense *reqbuf = sense; |
1da177e4 LT |
486 | |
487 | if (reqbuf->sense_key == UNIT_ATTENTION) | |
488 | cdrom_saw_media_change(drive); | |
489 | else if (reqbuf->sense_key == NOT_READY && | |
490 | reqbuf->asc == 4 && reqbuf->ascq != 4) { | |
5a3ea3b4 BP |
491 | /* |
492 | * The drive is in the process of loading | |
493 | * a disk. Retry, but wait a little to give | |
494 | * the drive time to complete the load. | |
495 | */ | |
1da177e4 LT |
496 | ssleep(2); |
497 | } else { | |
5a3ea3b4 | 498 | /* otherwise, don't retry */ |
1da177e4 LT |
499 | retries = 0; |
500 | } | |
501 | --retries; | |
502 | } | |
503 | ||
5a3ea3b4 | 504 | /* end of retry loop */ |
5f828546 | 505 | } while ((flags & REQ_FAILED) && retries >= 0); |
1da177e4 | 506 | |
5a3ea3b4 | 507 | /* return an error if the command failed */ |
5f828546 | 508 | return (flags & REQ_FAILED) ? -EIO : 0; |
1da177e4 LT |
509 | } |
510 | ||
11071282 BP |
511 | /* |
512 | * returns true if rq has been completed | |
513 | */ | |
514 | static bool ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd) | |
a08915ba BZ |
515 | { |
516 | unsigned int nr_bytes = cmd->nbytes - cmd->nleft; | |
517 | ||
518 | if (cmd->tf_flags & IDE_TFLAG_WRITE) | |
519 | nr_bytes -= cmd->last_xfer_len; | |
520 | ||
11071282 | 521 | if (nr_bytes > 0) { |
a08915ba | 522 | ide_complete_rq(drive, 0, nr_bytes); |
11071282 BP |
523 | return true; |
524 | } | |
525 | ||
526 | return false; | |
a08915ba BZ |
527 | } |
528 | ||
1da177e4 LT |
529 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) |
530 | { | |
23579a2a | 531 | ide_hwif_t *hwif = drive->hwif; |
a08915ba | 532 | struct ide_cmd *cmd = &hwif->cmd; |
b65fac32 | 533 | struct request *rq = hwif->rq; |
0041e7c6 | 534 | ide_expiry_t *expiry = NULL; |
8e59bfde | 535 | int dma_error = 0, dma, thislen, uptodate = 0; |
34b7d2c9 | 536 | int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc = 0; |
33659ebb | 537 | int sense = (rq->cmd_type == REQ_TYPE_SENSE); |
ff1bfbc1 | 538 | unsigned int timeout; |
1823649b | 539 | u16 len; |
8e59bfde | 540 | u8 ireason, stat; |
1da177e4 | 541 | |
98036abf | 542 | ide_debug_log(IDE_DBG_PC, "cmd: 0x%x, write: 0x%x", rq->cmd[0], write); |
fc8323f7 | 543 | |
5a3ea3b4 | 544 | /* check for errors */ |
12469ac0 | 545 | dma = drive->dma; |
1da177e4 | 546 | if (dma) { |
12469ac0 | 547 | drive->dma = 0; |
88b4132e | 548 | drive->waiting_for_dma = 0; |
5e37bdc0 | 549 | dma_error = hwif->dma_ops->dma_end(drive); |
f094d4d8 | 550 | ide_dma_unmap_sg(drive, cmd); |
eba15fba | 551 | if (dma_error) { |
fc8323f7 | 552 | printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name, |
ff1bfbc1 | 553 | write ? "write" : "read"); |
eba15fba BZ |
554 | ide_dma_off(drive); |
555 | } | |
1da177e4 LT |
556 | } |
557 | ||
8e59bfde BP |
558 | /* check status */ |
559 | stat = hwif->tp_ops->read_status(hwif); | |
560 | ||
561 | if (!OK_STAT(stat, 0, BAD_R_STAT)) { | |
562 | rc = cdrom_decode_status(drive, stat); | |
563 | if (rc) { | |
564 | if (rc == 2) | |
565 | goto out_end; | |
566 | return ide_stopped; | |
567 | } | |
8a116974 | 568 | } |
1da177e4 | 569 | |
5a3ea3b4 | 570 | /* using dma, transfer is complete now */ |
1da177e4 | 571 | if (dma) { |
eba15fba | 572 | if (dma_error) |
1da177e4 | 573 | return ide_error(drive, "dma error", stat); |
4a3d8cf4 | 574 | uptodate = 1; |
984c5e59 | 575 | goto out_end; |
1da177e4 LT |
576 | } |
577 | ||
1823649b | 578 | ide_read_bcount_and_ireason(drive, &len, &ireason); |
0041e7c6 | 579 | |
33659ebb | 580 | thislen = (rq->cmd_type == REQ_TYPE_FS) ? len : cmd->nleft; |
1da177e4 LT |
581 | if (thislen > len) |
582 | thislen = len; | |
583 | ||
088b1b88 BP |
584 | ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d", |
585 | stat, thislen); | |
fc8323f7 | 586 | |
5a3ea3b4 | 587 | /* If DRQ is clear, the command has completed. */ |
3a7d2484 | 588 | if ((stat & ATA_DRQ) == 0) { |
33659ebb | 589 | if (rq->cmd_type == REQ_TYPE_FS) { |
0041e7c6 BZ |
590 | /* |
591 | * If we're not done reading/writing, complain. | |
592 | * Otherwise, complete the command normally. | |
593 | */ | |
594 | uptodate = 1; | |
a08915ba | 595 | if (cmd->nleft > 0) { |
fc8323f7 | 596 | printk(KERN_ERR PFX "%s: %s: data underrun " |
a08915ba BZ |
597 | "(%u bytes)\n", drive->name, __func__, |
598 | cmd->nleft); | |
0041e7c6 BZ |
599 | if (!write) |
600 | rq->cmd_flags |= REQ_FAILED; | |
601 | uptodate = 0; | |
602 | } | |
33659ebb | 603 | } else if (rq->cmd_type != REQ_TYPE_BLOCK_PC) { |
c7ec8999 | 604 | ide_cd_request_sense_fixup(drive, cmd); |
9c72ebef | 605 | |
c7ec8999 | 606 | uptodate = cmd->nleft ? 0 : 1; |
9c72ebef BP |
607 | |
608 | /* | |
609 | * suck out the remaining bytes from the drive in an | |
610 | * attempt to complete the data xfer. (see BZ#13399) | |
611 | */ | |
612 | if (!(stat & ATA_ERR) && !uptodate && thislen) { | |
613 | ide_pio_bytes(drive, cmd, write, thislen); | |
614 | uptodate = cmd->nleft ? 0 : 1; | |
615 | } | |
616 | ||
617 | if (!uptodate) | |
984c5e59 | 618 | rq->cmd_flags |= REQ_FAILED; |
ff1bfbc1 | 619 | } |
984c5e59 | 620 | goto out_end; |
aaa04c28 | 621 | } |
1da177e4 | 622 | |
103f7033 | 623 | rc = ide_check_ireason(drive, rq, len, ireason, write); |
8a116974 BZ |
624 | if (rc) |
625 | goto out_end; | |
0041e7c6 | 626 | |
06a449e3 | 627 | cmd->last_xfer_len = 0; |
1da177e4 | 628 | |
088b1b88 BP |
629 | ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, " |
630 | "ireason: 0x%x", | |
631 | rq->cmd_type, ireason); | |
fc8323f7 | 632 | |
5a3ea3b4 | 633 | /* transfer data */ |
1da177e4 | 634 | while (thislen > 0) { |
c7ec8999 | 635 | int blen = min_t(int, thislen, cmd->nleft); |
1da177e4 | 636 | |
14fa91cc | 637 | if (cmd->nleft == 0) |
1da177e4 | 638 | break; |
1da177e4 | 639 | |
c7ec8999 BZ |
640 | ide_pio_bytes(drive, cmd, write, blen); |
641 | cmd->last_xfer_len += blen; | |
1da177e4 LT |
642 | |
643 | thislen -= blen; | |
644 | len -= blen; | |
1da177e4 | 645 | |
8a116974 | 646 | if (sense && write == 0) |
bcd88ac3 | 647 | rq->sense_len += blen; |
1da177e4 LT |
648 | } |
649 | ||
5a3ea3b4 | 650 | /* pad, if necessary */ |
14fa91cc | 651 | if (len > 0) { |
33659ebb | 652 | if (rq->cmd_type != REQ_TYPE_FS || write == 0) |
14fa91cc BZ |
653 | ide_pad_transfer(drive, write, len); |
654 | else { | |
655 | printk(KERN_ERR PFX "%s: confused, missing data\n", | |
656 | drive->name); | |
657 | blk_dump_rq_flags(rq, "cdrom_newpc_intr"); | |
658 | } | |
659 | } | |
1da177e4 | 660 | |
33659ebb | 661 | if (rq->cmd_type == REQ_TYPE_BLOCK_PC) { |
ff1bfbc1 | 662 | timeout = rq->timeout; |
ff1bfbc1 BZ |
663 | } else { |
664 | timeout = ATAPI_WAIT_PC; | |
33659ebb | 665 | if (rq->cmd_type != REQ_TYPE_FS) |
4cad085e | 666 | expiry = ide_cd_expiry; |
ff1bfbc1 BZ |
667 | } |
668 | ||
60c0cd02 BZ |
669 | hwif->expiry = expiry; |
670 | ide_set_handler(drive, cdrom_newpc_intr, timeout); | |
1da177e4 | 671 | return ide_started; |
ff1bfbc1 | 672 | |
984c5e59 | 673 | out_end: |
33659ebb | 674 | if (rq->cmd_type == REQ_TYPE_BLOCK_PC && rc == 0) { |
5f49f631 | 675 | rq->resid_len = 0; |
34b7d2c9 | 676 | blk_end_request_all(rq, 0); |
b65fac32 | 677 | hwif->rq = NULL; |
ff1bfbc1 | 678 | } else { |
f63174e7 BZ |
679 | if (sense && uptodate) |
680 | ide_cd_complete_failed_rq(drive, rq); | |
681 | ||
33659ebb | 682 | if (rq->cmd_type == REQ_TYPE_FS) { |
a08915ba | 683 | if (cmd->nleft == 0) |
f63174e7 BZ |
684 | uptodate = 1; |
685 | } else { | |
686 | if (uptodate <= 0 && rq->errors == 0) | |
687 | rq->errors = -EIO; | |
688 | } | |
689 | ||
39c58f37 | 690 | if (uptodate == 0 && rq->bio) |
11071282 BP |
691 | if (ide_cd_error_cmd(drive, cmd)) |
692 | return ide_stopped; | |
c7ec8999 | 693 | |
f63174e7 | 694 | /* make sure it's fully ended */ |
33659ebb | 695 | if (rq->cmd_type != REQ_TYPE_FS) { |
5f49f631 | 696 | rq->resid_len -= cmd->nbytes - cmd->nleft; |
c7ec8999 | 697 | if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE)) |
c3a4d78c | 698 | rq->resid_len += cmd->last_xfer_len; |
c7ec8999 BZ |
699 | } |
700 | ||
34b7d2c9 | 701 | ide_complete_rq(drive, uptodate ? 0 : -EIO, blk_rq_bytes(rq)); |
f63174e7 | 702 | |
8a116974 BZ |
703 | if (sense && rc == 2) |
704 | ide_error(drive, "request sense failure", stat); | |
ff1bfbc1 BZ |
705 | } |
706 | return ide_stopped; | |
1da177e4 LT |
707 | } |
708 | ||
21ea1f0f | 709 | static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) |
1da177e4 | 710 | { |
21ea1f0f | 711 | struct cdrom_info *cd = drive->driver_data; |
a08915ba | 712 | struct request_queue *q = drive->queue; |
21ea1f0f BZ |
713 | int write = rq_data_dir(rq) == WRITE; |
714 | unsigned short sectors_per_frame = | |
e1defc4f | 715 | queue_logical_block_size(q) >> SECTOR_BITS; |
1da177e4 | 716 | |
8652b31a | 717 | ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, " |
088b1b88 | 718 | "secs_per_frame: %u", |
8652b31a | 719 | rq->cmd[0], rq->cmd_flags, sectors_per_frame); |
fc8323f7 | 720 | |
21ea1f0f | 721 | if (write) { |
5a3ea3b4 | 722 | /* disk has become write protected */ |
e0458ccb | 723 | if (get_disk_ro(cd->disk)) |
21ea1f0f | 724 | return ide_stopped; |
21ea1f0f BZ |
725 | } else { |
726 | /* | |
727 | * We may be retrying this request after an error. Fix up any | |
728 | * weirdness which might be present in the request packet. | |
729 | */ | |
a08915ba | 730 | q->prep_rq_fn(q, rq); |
1da177e4 LT |
731 | } |
732 | ||
a08915ba | 733 | /* fs requests *must* be hardware frame aligned */ |
9780e2dd TH |
734 | if ((blk_rq_sectors(rq) & (sectors_per_frame - 1)) || |
735 | (blk_rq_pos(rq) & (sectors_per_frame - 1))) | |
a08915ba BZ |
736 | return ide_stopped; |
737 | ||
738 | /* use DMA, if possible */ | |
739 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); | |
1da177e4 | 740 | |
21ea1f0f BZ |
741 | if (write) |
742 | cd->devinfo.media_written = 1; | |
1da177e4 | 743 | |
8652b31a BZ |
744 | rq->timeout = ATAPI_WAIT_PC; |
745 | ||
b6ca440a | 746 | return ide_started; |
1da177e4 LT |
747 | } |
748 | ||
b6ca440a | 749 | static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) |
1da177e4 | 750 | { |
1da177e4 | 751 | |
088b1b88 BP |
752 | ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x", |
753 | rq->cmd[0], rq->cmd_type); | |
fc8323f7 | 754 | |
33659ebb | 755 | if (rq->cmd_type == REQ_TYPE_BLOCK_PC) |
c9f56a80 BZ |
756 | rq->cmd_flags |= REQ_QUIET; |
757 | else | |
758 | rq->cmd_flags &= ~REQ_FAILED; | |
1da177e4 | 759 | |
12469ac0 | 760 | drive->dma = 0; |
1da177e4 | 761 | |
5a3ea3b4 | 762 | /* sg request */ |
02e7cf8f | 763 | if (rq->bio) { |
e5318b53 | 764 | struct request_queue *q = drive->queue; |
02e7cf8f | 765 | char *buf = bio_data(rq->bio); |
e5318b53 | 766 | unsigned int alignment; |
e5318b53 | 767 | |
12469ac0 | 768 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
1da177e4 LT |
769 | |
770 | /* | |
771 | * check if dma is safe | |
5d9e4ea5 LT |
772 | * |
773 | * NOTE! The "len" and "addr" checks should possibly have | |
774 | * separate masks. | |
1da177e4 | 775 | */ |
e5318b53 | 776 | alignment = queue_dma_alignment(q) | q->dma_pad_mask; |
9bd27cba | 777 | if ((unsigned long)buf & alignment |
34b7d2c9 | 778 | || blk_rq_bytes(rq) & q->dma_pad_mask |
efa402d5 | 779 | || object_is_on_stack(buf)) |
12469ac0 | 780 | drive->dma = 0; |
1da177e4 | 781 | } |
1da177e4 LT |
782 | } |
783 | ||
99384aea | 784 | static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, |
e5e076a3 | 785 | sector_t block) |
1da177e4 | 786 | { |
b788ee9c | 787 | struct ide_cmd cmd; |
f63174e7 | 788 | int uptodate = 0, nsectors; |
b788ee9c | 789 | |
088b1b88 BP |
790 | ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu", |
791 | rq->cmd[0], (unsigned long long)block); | |
792 | ||
793 | if (drive->debug_mask & IDE_DBG_RQ) | |
794 | blk_dump_rq_flags(rq, "ide_cd_do_request"); | |
fc8323f7 | 795 | |
33659ebb CH |
796 | switch (rq->cmd_type) { |
797 | case REQ_TYPE_FS: | |
8652b31a | 798 | if (cdrom_start_rw(drive, rq) == ide_stopped) |
e0458ccb | 799 | goto out_end; |
33659ebb CH |
800 | break; |
801 | case REQ_TYPE_SENSE: | |
802 | case REQ_TYPE_BLOCK_PC: | |
803 | case REQ_TYPE_ATA_PC: | |
7fcebda5 BP |
804 | if (!rq->timeout) |
805 | rq->timeout = ATAPI_WAIT_PC; | |
806 | ||
b6ca440a | 807 | cdrom_do_block_pc(drive, rq); |
33659ebb CH |
808 | break; |
809 | case REQ_TYPE_SPECIAL: | |
5a3ea3b4 | 810 | /* right now this can only be a reset... */ |
e0458ccb BZ |
811 | uptodate = 1; |
812 | goto out_end; | |
33659ebb | 813 | default: |
2c7eaa43 | 814 | BUG(); |
33659ebb | 815 | } |
b6ca440a | 816 | |
c457ce87 BP |
817 | /* prepare sense request for this command */ |
818 | ide_prep_sense(drive, rq); | |
819 | ||
b788ee9c BZ |
820 | memset(&cmd, 0, sizeof(cmd)); |
821 | ||
822 | if (rq_data_dir(rq)) | |
823 | cmd.tf_flags |= IDE_TFLAG_WRITE; | |
824 | ||
825 | cmd.rq = rq; | |
826 | ||
33659ebb | 827 | if (rq->cmd_type == REQ_TYPE_FS || blk_rq_bytes(rq)) { |
34b7d2c9 | 828 | ide_init_sg_cmd(&cmd, blk_rq_bytes(rq)); |
a08915ba BZ |
829 | ide_map_sg(drive, &cmd); |
830 | } | |
831 | ||
b788ee9c | 832 | return ide_issue_pc(drive, &cmd); |
e0458ccb | 833 | out_end: |
5b93629b | 834 | nsectors = blk_rq_sectors(rq); |
f63174e7 BZ |
835 | |
836 | if (nsectors == 0) | |
837 | nsectors = 1; | |
838 | ||
839 | ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9); | |
840 | ||
e0458ccb | 841 | return ide_stopped; |
1da177e4 LT |
842 | } |
843 | ||
5a3ea3b4 | 844 | /* |
1da177e4 LT |
845 | * Ioctl handling. |
846 | * | |
5a3ea3b4 BP |
847 | * Routines which queue packet commands take as a final argument a pointer to a |
848 | * request_sense struct. If execution of the command results in an error with a | |
849 | * CHECK CONDITION status, this structure will be filled with the results of the | |
850 | * subsequent request sense command. The pointer can also be NULL, in which case | |
851 | * no sense information is returned. | |
1da177e4 | 852 | */ |
e5e076a3 | 853 | static void msf_from_bcd(struct atapi_msf *msf) |
1da177e4 | 854 | { |
fc99856a AB |
855 | msf->minute = bcd2bin(msf->minute); |
856 | msf->second = bcd2bin(msf->second); | |
857 | msf->frame = bcd2bin(msf->frame); | |
1da177e4 LT |
858 | } |
859 | ||
f9afd18b | 860 | int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 | 861 | { |
1da177e4 LT |
862 | struct cdrom_info *info = drive->driver_data; |
863 | struct cdrom_device_info *cdi = &info->devinfo; | |
5f828546 | 864 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 865 | |
088b1b88 | 866 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 867 | |
5f828546 FT |
868 | memset(cmd, 0, BLK_MAX_CDB); |
869 | cmd[0] = GPCMD_TEST_UNIT_READY; | |
1da177e4 | 870 | |
cdf6000d | 871 | /* |
5a3ea3b4 BP |
872 | * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs |
873 | * instead of supporting the LOAD_UNLOAD opcode. | |
cdf6000d | 874 | */ |
5f828546 | 875 | cmd[7] = cdi->sanyo_slot % 3; |
1da177e4 | 876 | |
141d3b27 | 877 | return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET); |
1da177e4 LT |
878 | } |
879 | ||
1da177e4 LT |
880 | static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, |
881 | unsigned long *sectors_per_frame, | |
882 | struct request_sense *sense) | |
883 | { | |
884 | struct { | |
141d3b27 HH |
885 | __be32 lba; |
886 | __be32 blocklen; | |
1da177e4 LT |
887 | } capbuf; |
888 | ||
889 | int stat; | |
5f828546 FT |
890 | unsigned char cmd[BLK_MAX_CDB]; |
891 | unsigned len = sizeof(capbuf); | |
938bb03d | 892 | u32 blocklen; |
1da177e4 | 893 | |
088b1b88 | 894 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 895 | |
5f828546 FT |
896 | memset(cmd, 0, BLK_MAX_CDB); |
897 | cmd[0] = GPCMD_READ_CDVD_CAPACITY; | |
1da177e4 | 898 | |
5f828546 FT |
899 | stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, |
900 | REQ_QUIET); | |
e8e7b9eb JA |
901 | if (stat) |
902 | return stat; | |
903 | ||
904 | /* | |
af054ed0 DM |
905 | * Sanity check the given block size, in so far as making |
906 | * sure the sectors_per_frame we give to the caller won't | |
907 | * end up being bogus. | |
e8e7b9eb | 908 | */ |
938bb03d | 909 | blocklen = be32_to_cpu(capbuf.blocklen); |
af054ed0 | 910 | blocklen = (blocklen >> SECTOR_BITS) << SECTOR_BITS; |
938bb03d PT |
911 | switch (blocklen) { |
912 | case 512: | |
913 | case 1024: | |
914 | case 2048: | |
915 | case 4096: | |
e8e7b9eb JA |
916 | break; |
917 | default: | |
d9ae6243 FP |
918 | printk_once(KERN_ERR PFX "%s: weird block size %u; " |
919 | "setting default block size to 2048\n", | |
fc8323f7 | 920 | drive->name, blocklen); |
938bb03d | 921 | blocklen = 2048; |
e8e7b9eb | 922 | break; |
1da177e4 LT |
923 | } |
924 | ||
e8e7b9eb | 925 | *capacity = 1 + be32_to_cpu(capbuf.lba); |
938bb03d | 926 | *sectors_per_frame = blocklen >> SECTOR_BITS; |
71b429ca | 927 | |
088b1b88 BP |
928 | ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu", |
929 | *capacity, *sectors_per_frame); | |
71b429ca | 930 | |
e8e7b9eb | 931 | return 0; |
1da177e4 LT |
932 | } |
933 | ||
934 | static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, | |
935 | int format, char *buf, int buflen, | |
936 | struct request_sense *sense) | |
937 | { | |
5f828546 | 938 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 939 | |
088b1b88 | 940 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 941 | |
5f828546 | 942 | memset(cmd, 0, BLK_MAX_CDB); |
1da177e4 | 943 | |
5f828546 FT |
944 | cmd[0] = GPCMD_READ_TOC_PMA_ATIP; |
945 | cmd[6] = trackno; | |
946 | cmd[7] = (buflen >> 8); | |
947 | cmd[8] = (buflen & 0xff); | |
948 | cmd[9] = (format << 6); | |
1da177e4 LT |
949 | |
950 | if (msf_flag) | |
5f828546 | 951 | cmd[1] = 2; |
1da177e4 | 952 | |
5f828546 | 953 | return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); |
1da177e4 LT |
954 | } |
955 | ||
1da177e4 | 956 | /* Try to read the entire TOC for the disk into our internal buffer. */ |
17802998 | 957 | int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 LT |
958 | { |
959 | int stat, ntracks, i; | |
960 | struct cdrom_info *info = drive->driver_data; | |
961 | struct cdrom_device_info *cdi = &info->devinfo; | |
962 | struct atapi_toc *toc = info->toc; | |
963 | struct { | |
964 | struct atapi_toc_header hdr; | |
965 | struct atapi_toc_entry ent; | |
966 | } ms_tmp; | |
967 | long last_written; | |
968 | unsigned long sectors_per_frame = SECTORS_PER_FRAME; | |
969 | ||
088b1b88 | 970 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 971 | |
1da177e4 | 972 | if (toc == NULL) { |
5a3ea3b4 | 973 | /* try to allocate space */ |
2a91f3e5 | 974 | toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); |
1da177e4 | 975 | if (toc == NULL) { |
fc8323f7 | 976 | printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n", |
83c8565d | 977 | drive->name); |
1da177e4 LT |
978 | return -ENOMEM; |
979 | } | |
2a91f3e5 | 980 | info->toc = toc; |
1da177e4 LT |
981 | } |
982 | ||
5a3ea3b4 BP |
983 | /* |
984 | * Check to see if the existing data is still valid. If it is, | |
985 | * just return. | |
986 | */ | |
1da177e4 LT |
987 | (void) cdrom_check_status(drive, sense); |
988 | ||
570f89ea | 989 | if (drive->atapi_flags & IDE_AFLAG_TOC_VALID) |
1da177e4 LT |
990 | return 0; |
991 | ||
5a3ea3b4 | 992 | /* try to get the total cdrom capacity and sector size */ |
1da177e4 LT |
993 | stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame, |
994 | sense); | |
995 | if (stat) | |
996 | toc->capacity = 0x1fffff; | |
997 | ||
998 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
5a3ea3b4 | 999 | /* save a private copy of the TOC capacity for error handling */ |
dbe217af AC |
1000 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1001 | ||
e1defc4f MP |
1002 | blk_queue_logical_block_size(drive->queue, |
1003 | sectors_per_frame << SECTOR_BITS); | |
1da177e4 | 1004 | |
5a3ea3b4 | 1005 | /* first read just the header, so we know how long the TOC is */ |
1da177e4 LT |
1006 | stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, |
1007 | sizeof(struct atapi_toc_header), sense); | |
2a91f3e5 JJ |
1008 | if (stat) |
1009 | return stat; | |
1da177e4 | 1010 | |
570f89ea | 1011 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1012 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1013 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1014 | } |
1da177e4 LT |
1015 | |
1016 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; | |
1017 | if (ntracks <= 0) | |
1018 | return -EIO; | |
1019 | if (ntracks > MAX_TRACKS) | |
1020 | ntracks = MAX_TRACKS; | |
1021 | ||
5a3ea3b4 | 1022 | /* now read the whole schmeer */ |
1da177e4 LT |
1023 | stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, |
1024 | (char *)&toc->hdr, | |
1025 | sizeof(struct atapi_toc_header) + | |
1026 | (ntracks + 1) * | |
1027 | sizeof(struct atapi_toc_entry), sense); | |
1028 | ||
1029 | if (stat && toc->hdr.first_track > 1) { | |
5a3ea3b4 BP |
1030 | /* |
1031 | * Cds with CDI tracks only don't have any TOC entries, despite | |
1032 | * of this the returned values are | |
1033 | * first_track == last_track = number of CDI tracks + 1, | |
1034 | * so that this case is indistinguishable from the same layout | |
1035 | * plus an additional audio track. If we get an error for the | |
1036 | * regular case, we assume a CDI without additional audio | |
1037 | * tracks. In this case the readable TOC is empty (CDI tracks | |
1038 | * are not included) and only holds the Leadout entry. | |
1039 | * | |
1040 | * Heiko Eißfeldt. | |
1041 | */ | |
1da177e4 LT |
1042 | ntracks = 0; |
1043 | stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, | |
1044 | (char *)&toc->hdr, | |
1045 | sizeof(struct atapi_toc_header) + | |
1046 | (ntracks + 1) * | |
1047 | sizeof(struct atapi_toc_entry), | |
1048 | sense); | |
cdf6000d | 1049 | if (stat) |
1da177e4 | 1050 | return stat; |
cdf6000d | 1051 | |
570f89ea | 1052 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1053 | toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT); |
1054 | toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT); | |
cdf6000d | 1055 | } else { |
1da177e4 LT |
1056 | toc->hdr.first_track = CDROM_LEADOUT; |
1057 | toc->hdr.last_track = CDROM_LEADOUT; | |
1058 | } | |
1059 | } | |
1060 | ||
1061 | if (stat) | |
1062 | return stat; | |
1063 | ||
7eb43fd2 | 1064 | toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); |
1da177e4 | 1065 | |
570f89ea | 1066 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1067 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1068 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1069 | } |
1da177e4 | 1070 | |
cdf6000d | 1071 | for (i = 0; i <= ntracks; i++) { |
570f89ea BP |
1072 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
1073 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) | |
fc99856a | 1074 | toc->ent[i].track = bcd2bin(toc->ent[i].track); |
1da177e4 LT |
1075 | msf_from_bcd(&toc->ent[i].addr.msf); |
1076 | } | |
9ce70fb2 PC |
1077 | toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, |
1078 | toc->ent[i].addr.msf.second, | |
1079 | toc->ent[i].addr.msf.frame); | |
1da177e4 LT |
1080 | } |
1081 | ||
1da177e4 | 1082 | if (toc->hdr.first_track != CDROM_LEADOUT) { |
5a3ea3b4 | 1083 | /* read the multisession information */ |
1da177e4 LT |
1084 | stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, |
1085 | sizeof(ms_tmp), sense); | |
2a91f3e5 JJ |
1086 | if (stat) |
1087 | return stat; | |
1da177e4 LT |
1088 | |
1089 | toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); | |
1090 | } else { | |
e5e076a3 BP |
1091 | ms_tmp.hdr.last_track = CDROM_LEADOUT; |
1092 | ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; | |
1da177e4 LT |
1093 | toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ |
1094 | } | |
1095 | ||
570f89ea | 1096 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
5a3ea3b4 | 1097 | /* re-read multisession information using MSF format */ |
1da177e4 LT |
1098 | stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, |
1099 | sizeof(ms_tmp), sense); | |
1100 | if (stat) | |
1101 | return stat; | |
1102 | ||
9ce70fb2 | 1103 | msf_from_bcd(&ms_tmp.ent.addr.msf); |
1da177e4 | 1104 | toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, |
9ce70fb2 | 1105 | ms_tmp.ent.addr.msf.second, |
1da177e4 LT |
1106 | ms_tmp.ent.addr.msf.frame); |
1107 | } | |
1da177e4 LT |
1108 | |
1109 | toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); | |
1110 | ||
5a3ea3b4 | 1111 | /* now try to get the total cdrom capacity */ |
1da177e4 LT |
1112 | stat = cdrom_get_last_written(cdi, &last_written); |
1113 | if (!stat && (last_written > toc->capacity)) { | |
1114 | toc->capacity = last_written; | |
1115 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
dbe217af | 1116 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1da177e4 LT |
1117 | } |
1118 | ||
1119 | /* Remember that we've read this stuff. */ | |
570f89ea | 1120 | drive->atapi_flags |= IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
1121 | |
1122 | return 0; | |
1123 | } | |
1124 | ||
17802998 | 1125 | int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) |
9235e68b EP |
1126 | { |
1127 | struct cdrom_info *info = drive->driver_data; | |
1128 | struct cdrom_device_info *cdi = &info->devinfo; | |
1129 | struct packet_command cgc; | |
455d80a9 | 1130 | int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; |
9235e68b | 1131 | |
088b1b88 | 1132 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1133 | |
570f89ea | 1134 | if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0) |
455d80a9 | 1135 | size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; |
9235e68b | 1136 | |
455d80a9 | 1137 | init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); |
5a3ea3b4 BP |
1138 | do { |
1139 | /* we seem to get stat=0x01,err=0x00 the first time (??) */ | |
9235e68b EP |
1140 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); |
1141 | if (!stat) | |
1142 | break; | |
1143 | } while (--attempts); | |
1144 | return stat; | |
1145 | } | |
1146 | ||
17802998 | 1147 | void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) |
9235e68b | 1148 | { |
4fe67178 | 1149 | struct cdrom_info *cd = drive->driver_data; |
481c8c64 BZ |
1150 | u16 curspeed, maxspeed; |
1151 | ||
088b1b88 | 1152 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1153 | |
570f89ea | 1154 | if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) { |
141d3b27 HH |
1155 | curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]); |
1156 | maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]); | |
9235e68b | 1157 | } else { |
141d3b27 HH |
1158 | curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]); |
1159 | maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]); | |
9235e68b | 1160 | } |
481c8c64 | 1161 | |
088b1b88 BP |
1162 | ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u", |
1163 | curspeed, maxspeed); | |
71b429ca | 1164 | |
72db37b2 JL |
1165 | cd->current_speed = DIV_ROUND_CLOSEST(curspeed, 176); |
1166 | cd->max_speed = DIV_ROUND_CLOSEST(maxspeed, 176); | |
9235e68b EP |
1167 | } |
1168 | ||
20e7f7ef BZ |
1169 | #define IDE_CD_CAPABILITIES \ |
1170 | (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ | |
1171 | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ | |
1172 | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ | |
1173 | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ | |
1174 | CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) | |
1da177e4 | 1175 | |
1da177e4 LT |
1176 | static struct cdrom_device_ops ide_cdrom_dops = { |
1177 | .open = ide_cdrom_open_real, | |
1178 | .release = ide_cdrom_release_real, | |
1179 | .drive_status = ide_cdrom_drive_status, | |
1180 | .media_changed = ide_cdrom_check_media_change_real, | |
1181 | .tray_move = ide_cdrom_tray_move, | |
1182 | .lock_door = ide_cdrom_lock_door, | |
1183 | .select_speed = ide_cdrom_select_speed, | |
1184 | .get_last_session = ide_cdrom_get_last_session, | |
1185 | .get_mcn = ide_cdrom_get_mcn, | |
1186 | .reset = ide_cdrom_reset, | |
1187 | .audio_ioctl = ide_cdrom_audio_ioctl, | |
20e7f7ef | 1188 | .capability = IDE_CD_CAPABILITIES, |
1da177e4 LT |
1189 | .generic_packet = ide_cdrom_packet, |
1190 | }; | |
1191 | ||
9ce70fb2 | 1192 | static int ide_cdrom_register(ide_drive_t *drive, int nslots) |
1da177e4 LT |
1193 | { |
1194 | struct cdrom_info *info = drive->driver_data; | |
1195 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1196 | ||
088b1b88 | 1197 | ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots); |
fc8323f7 | 1198 | |
1da177e4 | 1199 | devinfo->ops = &ide_cdrom_dops; |
2bc4cf2d | 1200 | devinfo->speed = info->current_speed; |
1da177e4 | 1201 | devinfo->capacity = nslots; |
2a91f3e5 | 1202 | devinfo->handle = drive; |
1da177e4 | 1203 | strcpy(devinfo->name, drive->name); |
1da177e4 | 1204 | |
570f89ea | 1205 | if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT) |
3cbd814e BZ |
1206 | devinfo->mask |= CDC_SELECT_SPEED; |
1207 | ||
1da177e4 LT |
1208 | devinfo->disk = info->disk; |
1209 | return register_cdrom(devinfo); | |
1210 | } | |
1211 | ||
e5e076a3 | 1212 | static int ide_cdrom_probe_capabilities(ide_drive_t *drive) |
1da177e4 | 1213 | { |
4fe67178 BZ |
1214 | struct cdrom_info *cd = drive->driver_data; |
1215 | struct cdrom_device_info *cdi = &cd->devinfo; | |
455d80a9 BZ |
1216 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; |
1217 | mechtype_t mechtype; | |
1da177e4 LT |
1218 | int nslots = 1; |
1219 | ||
088b1b88 BP |
1220 | ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx", |
1221 | drive->media, drive->atapi_flags); | |
fc8323f7 | 1222 | |
3f1b86d8 BZ |
1223 | cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | |
1224 | CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | | |
1225 | CDC_MO_DRIVE | CDC_RAM); | |
1226 | ||
1da177e4 | 1227 | if (drive->media == ide_optical) { |
3f1b86d8 | 1228 | cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); |
fc8323f7 | 1229 | printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n", |
83c8565d | 1230 | drive->name); |
1da177e4 LT |
1231 | return nslots; |
1232 | } | |
1233 | ||
570f89ea BP |
1234 | if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) { |
1235 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; | |
3f1b86d8 | 1236 | cdi->mask &= ~CDC_PLAY_AUDIO; |
1da177e4 LT |
1237 | return nslots; |
1238 | } | |
1239 | ||
1240 | /* | |
5a3ea3b4 BP |
1241 | * We have to cheat a little here. the packet will eventually be queued |
1242 | * with ide_cdrom_packet(), which extracts the drive from cdi->handle. | |
1243 | * Since this device hasn't been registered with the Uniform layer yet, | |
1244 | * it can't do this. Same goes for cdi->ops. | |
1da177e4 | 1245 | */ |
2a91f3e5 | 1246 | cdi->handle = drive; |
1da177e4 LT |
1247 | cdi->ops = &ide_cdrom_dops; |
1248 | ||
455d80a9 | 1249 | if (ide_cdrom_get_capabilities(drive, buf)) |
1da177e4 LT |
1250 | return 0; |
1251 | ||
455d80a9 | 1252 | if ((buf[8 + 6] & 0x01) == 0) |
42619d35 | 1253 | drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; |
455d80a9 | 1254 | if (buf[8 + 6] & 0x08) |
570f89ea | 1255 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; |
455d80a9 | 1256 | if (buf[8 + 3] & 0x01) |
3f1b86d8 | 1257 | cdi->mask &= ~CDC_CD_R; |
455d80a9 | 1258 | if (buf[8 + 3] & 0x02) |
3f1b86d8 | 1259 | cdi->mask &= ~(CDC_CD_RW | CDC_RAM); |
455d80a9 | 1260 | if (buf[8 + 2] & 0x38) |
3f1b86d8 | 1261 | cdi->mask &= ~CDC_DVD; |
455d80a9 | 1262 | if (buf[8 + 3] & 0x20) |
3f1b86d8 | 1263 | cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); |
455d80a9 | 1264 | if (buf[8 + 3] & 0x10) |
3f1b86d8 | 1265 | cdi->mask &= ~CDC_DVD_R; |
570f89ea | 1266 | if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK)) |
3f1b86d8 | 1267 | cdi->mask &= ~CDC_PLAY_AUDIO; |
455d80a9 BZ |
1268 | |
1269 | mechtype = buf[8 + 6] >> 5; | |
f20f2586 BP |
1270 | if (mechtype == mechtype_caddy || |
1271 | mechtype == mechtype_popup || | |
1272 | (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE)) | |
3f1b86d8 | 1273 | cdi->mask |= CDC_CLOSE_TRAY; |
1da177e4 | 1274 | |
1da177e4 | 1275 | if (cdi->sanyo_slot > 0) { |
3f1b86d8 | 1276 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 | 1277 | nslots = 3; |
cdf6000d BZ |
1278 | } else if (mechtype == mechtype_individual_changer || |
1279 | mechtype == mechtype_cartridge_changer) { | |
2609d06d BZ |
1280 | nslots = cdrom_number_of_slots(cdi); |
1281 | if (nslots > 1) | |
3f1b86d8 | 1282 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 LT |
1283 | } |
1284 | ||
455d80a9 | 1285 | ide_cdrom_update_speed(drive, buf); |
4fe67178 | 1286 | |
fc8323f7 | 1287 | printk(KERN_INFO PFX "%s: ATAPI", drive->name); |
4fe67178 BZ |
1288 | |
1289 | /* don't print speed if the drive reported 0 */ | |
2bc4cf2d BZ |
1290 | if (cd->max_speed) |
1291 | printk(KERN_CONT " %dX", cd->max_speed); | |
4fe67178 | 1292 | |
3f1b86d8 | 1293 | printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); |
1da177e4 | 1294 | |
3f1b86d8 BZ |
1295 | if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) |
1296 | printk(KERN_CONT " DVD%s%s", | |
1297 | (cdi->mask & CDC_DVD_R) ? "" : "-R", | |
419a5b67 | 1298 | (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM"); |
1da177e4 | 1299 | |
3f1b86d8 BZ |
1300 | if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) |
1301 | printk(KERN_CONT " CD%s%s", | |
1302 | (cdi->mask & CDC_CD_R) ? "" : "-R", | |
1303 | (cdi->mask & CDC_CD_RW) ? "" : "/RW"); | |
1da177e4 | 1304 | |
3f1b86d8 BZ |
1305 | if ((cdi->mask & CDC_SELECT_DISC) == 0) |
1306 | printk(KERN_CONT " changer w/%d slots", nslots); | |
1307 | else | |
1308 | printk(KERN_CONT " drive"); | |
1da177e4 | 1309 | |
fc8323f7 BP |
1310 | printk(KERN_CONT ", %dkB Cache\n", |
1311 | be16_to_cpup((__be16 *)&buf[8 + 12])); | |
1da177e4 LT |
1312 | |
1313 | return nslots; | |
1314 | } | |
1315 | ||
5a3ea3b4 | 1316 | /* standard prep_rq_fn that builds 10 byte cmds */ |
165125e1 | 1317 | static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) |
1da177e4 | 1318 | { |
e1defc4f | 1319 | int hard_sect = queue_logical_block_size(q); |
5b93629b TH |
1320 | long block = (long)blk_rq_pos(rq) / (hard_sect >> 9); |
1321 | unsigned long blocks = blk_rq_sectors(rq) / (hard_sect >> 9); | |
1da177e4 | 1322 | |
d34c87e4 | 1323 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
1324 | |
1325 | if (rq_data_dir(rq) == READ) | |
1326 | rq->cmd[0] = GPCMD_READ_10; | |
1327 | else | |
1328 | rq->cmd[0] = GPCMD_WRITE_10; | |
1329 | ||
1330 | /* | |
1331 | * fill in lba | |
1332 | */ | |
1333 | rq->cmd[2] = (block >> 24) & 0xff; | |
1334 | rq->cmd[3] = (block >> 16) & 0xff; | |
1335 | rq->cmd[4] = (block >> 8) & 0xff; | |
1336 | rq->cmd[5] = block & 0xff; | |
1337 | ||
1338 | /* | |
1339 | * and transfer length | |
1340 | */ | |
1341 | rq->cmd[7] = (blocks >> 8) & 0xff; | |
1342 | rq->cmd[8] = blocks & 0xff; | |
1343 | rq->cmd_len = 10; | |
1344 | return BLKPREP_OK; | |
1345 | } | |
1346 | ||
1347 | /* | |
1348 | * Most of the SCSI commands are supported directly by ATAPI devices. | |
1349 | * This transform handles the few exceptions. | |
1350 | */ | |
1351 | static int ide_cdrom_prep_pc(struct request *rq) | |
1352 | { | |
1353 | u8 *c = rq->cmd; | |
1354 | ||
5a3ea3b4 | 1355 | /* transform 6-byte read/write commands to the 10-byte version */ |
1da177e4 LT |
1356 | if (c[0] == READ_6 || c[0] == WRITE_6) { |
1357 | c[8] = c[4]; | |
1358 | c[5] = c[3]; | |
1359 | c[4] = c[2]; | |
1360 | c[3] = c[1] & 0x1f; | |
1361 | c[2] = 0; | |
1362 | c[1] &= 0xe0; | |
1363 | c[0] += (READ_10 - READ_6); | |
1364 | rq->cmd_len = 10; | |
1365 | return BLKPREP_OK; | |
1366 | } | |
1367 | ||
1368 | /* | |
1369 | * it's silly to pretend we understand 6-byte sense commands, just | |
1370 | * reject with ILLEGAL_REQUEST and the caller should take the | |
1371 | * appropriate action | |
1372 | */ | |
1373 | if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { | |
1374 | rq->errors = ILLEGAL_REQUEST; | |
1375 | return BLKPREP_KILL; | |
1376 | } | |
9ce70fb2 | 1377 | |
1da177e4 LT |
1378 | return BLKPREP_OK; |
1379 | } | |
1380 | ||
165125e1 | 1381 | static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) |
1da177e4 | 1382 | { |
33659ebb | 1383 | if (rq->cmd_type == REQ_TYPE_FS) |
1da177e4 | 1384 | return ide_cdrom_prep_fs(q, rq); |
33659ebb | 1385 | else if (rq->cmd_type == REQ_TYPE_BLOCK_PC) |
1da177e4 LT |
1386 | return ide_cdrom_prep_pc(rq); |
1387 | ||
1388 | return 0; | |
1389 | } | |
1390 | ||
e59724c7 BZ |
1391 | struct cd_list_entry { |
1392 | const char *id_model; | |
1393 | const char *id_firmware; | |
1394 | unsigned int cd_flags; | |
1395 | }; | |
1396 | ||
5e657a9e BP |
1397 | #ifdef CONFIG_IDE_PROC_FS |
1398 | static sector_t ide_cdrom_capacity(ide_drive_t *drive) | |
1399 | { | |
1400 | unsigned long capacity, sectors_per_frame; | |
1401 | ||
1402 | if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL)) | |
1403 | return 0; | |
1404 | ||
1405 | return capacity * sectors_per_frame; | |
1406 | } | |
1407 | ||
6d703a81 | 1408 | static int idecd_capacity_proc_show(struct seq_file *m, void *v) |
5e657a9e | 1409 | { |
6d703a81 | 1410 | ide_drive_t *drive = m->private; |
5e657a9e | 1411 | |
6d703a81 AD |
1412 | seq_printf(m, "%llu\n", (long long)ide_cdrom_capacity(drive)); |
1413 | return 0; | |
1414 | } | |
1415 | ||
1416 | static int idecd_capacity_proc_open(struct inode *inode, struct file *file) | |
1417 | { | |
1418 | return single_open(file, idecd_capacity_proc_show, PDE(inode)->data); | |
5e657a9e BP |
1419 | } |
1420 | ||
6d703a81 AD |
1421 | static const struct file_operations idecd_capacity_proc_fops = { |
1422 | .owner = THIS_MODULE, | |
1423 | .open = idecd_capacity_proc_open, | |
1424 | .read = seq_read, | |
1425 | .llseek = seq_lseek, | |
1426 | .release = single_release, | |
1427 | }; | |
1428 | ||
5e657a9e | 1429 | static ide_proc_entry_t idecd_proc[] = { |
6d703a81 AD |
1430 | { "capacity", S_IFREG|S_IRUGO, &idecd_capacity_proc_fops }, |
1431 | {} | |
5e657a9e BP |
1432 | }; |
1433 | ||
79cb3803 BZ |
1434 | static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive) |
1435 | { | |
1436 | return idecd_proc; | |
1437 | } | |
1438 | ||
1439 | static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive) | |
1440 | { | |
519d6808 | 1441 | return NULL; |
79cb3803 | 1442 | } |
5e657a9e BP |
1443 | #endif |
1444 | ||
e59724c7 | 1445 | static const struct cd_list_entry ide_cd_quirks_list[] = { |
e59724c7 | 1446 | /* SCR-3231 doesn't support the SET_CD_SPEED command. */ |
570f89ea | 1447 | { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT }, |
e59724c7 | 1448 | /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ |
570f89ea BP |
1449 | { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD | |
1450 | IDE_AFLAG_PRE_ATAPI12, }, | |
e59724c7 | 1451 | /* Vertos 300, some versions of this drive like to talk BCD. */ |
570f89ea | 1452 | { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, }, |
e59724c7 | 1453 | /* Vertos 600 ESD. */ |
570f89ea | 1454 | { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, }, |
e59724c7 BZ |
1455 | /* |
1456 | * Sanyo 3 CD changer uses a non-standard command for CD changing | |
1457 | * (by default standard ATAPI support for CD changers is used). | |
1458 | */ | |
570f89ea BP |
1459 | { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD }, |
1460 | { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD }, | |
1461 | { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD }, | |
e59724c7 | 1462 | /* Stingray 8X CD-ROM. */ |
570f89ea | 1463 | { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 }, |
e59724c7 BZ |
1464 | /* |
1465 | * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length | |
1466 | * mode sense page capabilities size, but older drives break. | |
1467 | */ | |
570f89ea BP |
1468 | { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, |
1469 | { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, | |
e59724c7 | 1470 | /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ |
570f89ea | 1471 | { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS }, |
e59724c7 BZ |
1472 | /* |
1473 | * Some drives used by Apple don't advertise audio play | |
1474 | * but they do support reading TOC & audio datas. | |
1475 | */ | |
570f89ea BP |
1476 | { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
1477 | { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1478 | { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1479 | { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1480 | { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
f3e85ee7 | 1481 | { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
f20f2586 | 1482 | { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
64c2eae2 | 1483 | { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
e59724c7 BZ |
1484 | { NULL, NULL, 0 } |
1485 | }; | |
1486 | ||
4dde4492 | 1487 | static unsigned int ide_cd_flags(u16 *id) |
e59724c7 BZ |
1488 | { |
1489 | const struct cd_list_entry *cle = ide_cd_quirks_list; | |
1490 | ||
1491 | while (cle->id_model) { | |
4dde4492 | 1492 | if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 && |
e59724c7 | 1493 | (cle->id_firmware == NULL || |
4dde4492 | 1494 | strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware))) |
e59724c7 BZ |
1495 | return cle->cd_flags; |
1496 | cle++; | |
1497 | } | |
1498 | ||
1499 | return 0; | |
1500 | } | |
1501 | ||
e5e076a3 | 1502 | static int ide_cdrom_setup(ide_drive_t *drive) |
1da177e4 | 1503 | { |
4fe67178 BZ |
1504 | struct cdrom_info *cd = drive->driver_data; |
1505 | struct cdrom_device_info *cdi = &cd->devinfo; | |
e698ea83 | 1506 | struct request_queue *q = drive->queue; |
4dde4492 BZ |
1507 | u16 *id = drive->id; |
1508 | char *fw_rev = (char *)&id[ATA_ID_FW_REV]; | |
1da177e4 LT |
1509 | int nslots; |
1510 | ||
088b1b88 | 1511 | ide_debug_log(IDE_DBG_PROBE, "enter"); |
fc8323f7 | 1512 | |
e698ea83 BZ |
1513 | blk_queue_prep_rq(q, ide_cdrom_prep_fn); |
1514 | blk_queue_dma_alignment(q, 31); | |
1515 | blk_queue_update_dma_pad(q, 15); | |
1516 | ||
1517 | q->unplug_delay = max((1 * HZ) / 1000, 1); | |
1da177e4 | 1518 | |
fe11edfa BZ |
1519 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
1520 | drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id); | |
1da177e4 | 1521 | |
570f89ea | 1522 | if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) && |
4dde4492 | 1523 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1524 | drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD | |
1525 | IDE_AFLAG_TOCADDR_AS_BCD); | |
1526 | else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) && | |
4dde4492 | 1527 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1528 | drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD; |
1529 | else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD) | |
5a3ea3b4 BP |
1530 | /* 3 => use CD in slot 0 */ |
1531 | cdi->sanyo_slot = 3; | |
1da177e4 | 1532 | |
9ce70fb2 | 1533 | nslots = ide_cdrom_probe_capabilities(drive); |
1da177e4 | 1534 | |
e1defc4f | 1535 | blk_queue_logical_block_size(q, CD_FRAMESIZE); |
1da177e4 | 1536 | |
1da177e4 | 1537 | if (ide_cdrom_register(drive, nslots)) { |
fc8323f7 | 1538 | printk(KERN_ERR PFX "%s: %s failed to register device with the" |
83c8565d | 1539 | " cdrom driver.\n", drive->name, __func__); |
4fe67178 | 1540 | cd->devinfo.handle = NULL; |
1da177e4 LT |
1541 | return 1; |
1542 | } | |
1e874f44 BZ |
1543 | |
1544 | ide_proc_register_driver(drive, cd->driver); | |
1da177e4 LT |
1545 | return 0; |
1546 | } | |
1547 | ||
4031bbe4 | 1548 | static void ide_cd_remove(ide_drive_t *drive) |
1da177e4 LT |
1549 | { |
1550 | struct cdrom_info *info = drive->driver_data; | |
1551 | ||
088b1b88 | 1552 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1553 | |
7662d046 | 1554 | ide_proc_unregister_driver(drive, info->driver); |
8fed4368 | 1555 | device_del(&info->dev); |
1da177e4 LT |
1556 | del_gendisk(info->disk); |
1557 | ||
8fed4368 BZ |
1558 | mutex_lock(&idecd_ref_mutex); |
1559 | put_device(&info->dev); | |
1560 | mutex_unlock(&idecd_ref_mutex); | |
1da177e4 LT |
1561 | } |
1562 | ||
8fed4368 | 1563 | static void ide_cd_release(struct device *dev) |
1da177e4 | 1564 | { |
8fed4368 | 1565 | struct cdrom_info *info = to_ide_drv(dev, cdrom_info); |
1da177e4 LT |
1566 | struct cdrom_device_info *devinfo = &info->devinfo; |
1567 | ide_drive_t *drive = info->drive; | |
1568 | struct gendisk *g = info->disk; | |
1569 | ||
088b1b88 | 1570 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1571 | |
6044ec88 | 1572 | kfree(info->toc); |
0a0c4114 AM |
1573 | if (devinfo->handle == drive) |
1574 | unregister_cdrom(devinfo); | |
1da177e4 LT |
1575 | drive->driver_data = NULL; |
1576 | blk_queue_prep_rq(drive->queue, NULL); | |
1577 | g->private_data = NULL; | |
1578 | put_disk(g); | |
1579 | kfree(info); | |
1580 | } | |
1581 | ||
4031bbe4 | 1582 | static int ide_cd_probe(ide_drive_t *); |
1da177e4 | 1583 | |
7f3c868b | 1584 | static struct ide_driver ide_cdrom_driver = { |
8604affd | 1585 | .gen_driver = { |
4ef3b8f4 | 1586 | .owner = THIS_MODULE, |
8604affd BZ |
1587 | .name = "ide-cdrom", |
1588 | .bus = &ide_bus_type, | |
8604affd | 1589 | }, |
4031bbe4 RK |
1590 | .probe = ide_cd_probe, |
1591 | .remove = ide_cd_remove, | |
1da177e4 | 1592 | .version = IDECD_VERSION, |
99384aea | 1593 | .do_request = ide_cd_do_request, |
7662d046 | 1594 | #ifdef CONFIG_IDE_PROC_FS |
79cb3803 BZ |
1595 | .proc_entries = ide_cd_proc_entries, |
1596 | .proc_devsets = ide_cd_proc_devsets, | |
7662d046 | 1597 | #endif |
1da177e4 LT |
1598 | }; |
1599 | ||
488ca606 | 1600 | static int idecd_open(struct block_device *bdev, fmode_t mode) |
1da177e4 | 1601 | { |
6e9624b8 AB |
1602 | struct cdrom_info *info; |
1603 | int rc = -ENXIO; | |
1da177e4 | 1604 | |
6e9624b8 AB |
1605 | lock_kernel(); |
1606 | info = ide_cd_get(bdev->bd_disk); | |
9ce70fb2 | 1607 | if (!info) |
6e9624b8 | 1608 | goto out; |
1da177e4 | 1609 | |
488ca606 | 1610 | rc = cdrom_open(&info->devinfo, bdev, mode); |
1da177e4 LT |
1611 | if (rc < 0) |
1612 | ide_cd_put(info); | |
6e9624b8 AB |
1613 | out: |
1614 | unlock_kernel(); | |
1da177e4 LT |
1615 | return rc; |
1616 | } | |
1617 | ||
488ca606 | 1618 | static int idecd_release(struct gendisk *disk, fmode_t mode) |
1da177e4 | 1619 | { |
5aeddf90 | 1620 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1621 | |
6e9624b8 | 1622 | lock_kernel(); |
488ca606 | 1623 | cdrom_release(&info->devinfo, mode); |
1da177e4 LT |
1624 | |
1625 | ide_cd_put(info); | |
6e9624b8 | 1626 | unlock_kernel(); |
1da177e4 LT |
1627 | |
1628 | return 0; | |
1629 | } | |
1630 | ||
6a2900b6 CH |
1631 | static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
1632 | { | |
1633 | struct packet_command cgc; | |
1634 | char buffer[16]; | |
1635 | int stat; | |
1636 | char spindown; | |
1637 | ||
1638 | if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) | |
1639 | return -EFAULT; | |
1640 | ||
1641 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1642 | ||
1643 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1644 | if (stat) | |
1645 | return stat; | |
1646 | ||
1647 | buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); | |
1648 | return cdrom_mode_select(cdi, &cgc); | |
1649 | } | |
1650 | ||
1651 | static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) | |
1652 | { | |
1653 | struct packet_command cgc; | |
1654 | char buffer[16]; | |
1655 | int stat; | |
9ce70fb2 | 1656 | char spindown; |
6a2900b6 CH |
1657 | |
1658 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1659 | ||
1660 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1661 | if (stat) | |
1662 | return stat; | |
1663 | ||
1664 | spindown = buffer[11] & 0x0f; | |
9ce70fb2 | 1665 | if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) |
6a2900b6 CH |
1666 | return -EFAULT; |
1667 | return 0; | |
1668 | } | |
1669 | ||
8a6cfeb6 | 1670 | static int idecd_locked_ioctl(struct block_device *bdev, fmode_t mode, |
1da177e4 LT |
1671 | unsigned int cmd, unsigned long arg) |
1672 | { | |
5aeddf90 | 1673 | struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info); |
1da177e4 LT |
1674 | int err; |
1675 | ||
6a2900b6 | 1676 | switch (cmd) { |
9ce70fb2 | 1677 | case CDROMSETSPINDOWN: |
6a2900b6 | 1678 | return idecd_set_spindown(&info->devinfo, arg); |
9ce70fb2 | 1679 | case CDROMGETSPINDOWN: |
6a2900b6 CH |
1680 | return idecd_get_spindown(&info->devinfo, arg); |
1681 | default: | |
1682 | break; | |
9ce70fb2 | 1683 | } |
6a2900b6 | 1684 | |
1bddd9e6 | 1685 | err = generic_ide_ioctl(info->drive, bdev, cmd, arg); |
1da177e4 | 1686 | if (err == -EINVAL) |
488ca606 | 1687 | err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg); |
1da177e4 LT |
1688 | |
1689 | return err; | |
1690 | } | |
1691 | ||
8a6cfeb6 AB |
1692 | static int idecd_ioctl(struct block_device *bdev, fmode_t mode, |
1693 | unsigned int cmd, unsigned long arg) | |
1694 | { | |
1695 | int ret; | |
1696 | ||
1697 | lock_kernel(); | |
1698 | ret = idecd_locked_ioctl(bdev, mode, cmd, arg); | |
1699 | unlock_kernel(); | |
1700 | ||
1701 | return ret; | |
1702 | } | |
1703 | ||
1704 | ||
1da177e4 LT |
1705 | static int idecd_media_changed(struct gendisk *disk) |
1706 | { | |
5aeddf90 | 1707 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 LT |
1708 | return cdrom_media_changed(&info->devinfo); |
1709 | } | |
1710 | ||
1711 | static int idecd_revalidate_disk(struct gendisk *disk) | |
1712 | { | |
5aeddf90 | 1713 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1714 | struct request_sense sense; |
139c829d BZ |
1715 | |
1716 | ide_cd_read_toc(info->drive, &sense); | |
1717 | ||
1da177e4 LT |
1718 | return 0; |
1719 | } | |
1720 | ||
83d5cde4 | 1721 | static const struct block_device_operations idecd_ops = { |
9ce70fb2 | 1722 | .owner = THIS_MODULE, |
488ca606 AV |
1723 | .open = idecd_open, |
1724 | .release = idecd_release, | |
8a6cfeb6 | 1725 | .ioctl = idecd_ioctl, |
9ce70fb2 PC |
1726 | .media_changed = idecd_media_changed, |
1727 | .revalidate_disk = idecd_revalidate_disk | |
1da177e4 LT |
1728 | }; |
1729 | ||
5a3ea3b4 | 1730 | /* module options */ |
35d9b17f BP |
1731 | static unsigned long debug_mask; |
1732 | module_param(debug_mask, ulong, 0644); | |
1733 | ||
1da177e4 LT |
1734 | MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); |
1735 | ||
4031bbe4 | 1736 | static int ide_cd_probe(ide_drive_t *drive) |
1da177e4 LT |
1737 | { |
1738 | struct cdrom_info *info; | |
1739 | struct gendisk *g; | |
1740 | struct request_sense sense; | |
1741 | ||
088b1b88 BP |
1742 | ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x", |
1743 | drive->driver_req, drive->media); | |
fc8323f7 | 1744 | |
1da177e4 LT |
1745 | if (!strstr("ide-cdrom", drive->driver_req)) |
1746 | goto failed; | |
2a924662 | 1747 | |
1da177e4 LT |
1748 | if (drive->media != ide_cdrom && drive->media != ide_optical) |
1749 | goto failed; | |
2a924662 | 1750 | |
35d9b17f | 1751 | drive->debug_mask = debug_mask; |
d6251d44 | 1752 | drive->irq_handler = cdrom_newpc_intr; |
35d9b17f | 1753 | |
f5e3c2fa | 1754 | info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); |
1da177e4 | 1755 | if (info == NULL) { |
fc8323f7 | 1756 | printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n", |
83c8565d | 1757 | drive->name); |
1da177e4 LT |
1758 | goto failed; |
1759 | } | |
1760 | ||
1761 | g = alloc_disk(1 << PARTN_BITS); | |
1762 | if (!g) | |
1763 | goto out_free_cd; | |
1764 | ||
1765 | ide_init_disk(g, drive); | |
1766 | ||
8fed4368 BZ |
1767 | info->dev.parent = &drive->gendev; |
1768 | info->dev.release = ide_cd_release; | |
1769 | dev_set_name(&info->dev, dev_name(&drive->gendev)); | |
1770 | ||
1771 | if (device_register(&info->dev)) | |
1772 | goto out_free_disk; | |
1da177e4 LT |
1773 | |
1774 | info->drive = drive; | |
1775 | info->driver = &ide_cdrom_driver; | |
1776 | info->disk = g; | |
1777 | ||
1778 | g->private_data = &info->driver; | |
1779 | ||
1780 | drive->driver_data = info; | |
1781 | ||
1da177e4 | 1782 | g->minors = 1; |
1da177e4 LT |
1783 | g->driverfs_dev = &drive->gendev; |
1784 | g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; | |
1785 | if (ide_cdrom_setup(drive)) { | |
8fed4368 | 1786 | put_device(&info->dev); |
1da177e4 LT |
1787 | goto failed; |
1788 | } | |
1da177e4 | 1789 | |
139c829d | 1790 | ide_cd_read_toc(drive, &sense); |
1da177e4 LT |
1791 | g->fops = &idecd_ops; |
1792 | g->flags |= GENHD_FL_REMOVABLE; | |
1793 | add_disk(g); | |
1794 | return 0; | |
1795 | ||
8fed4368 BZ |
1796 | out_free_disk: |
1797 | put_disk(g); | |
1da177e4 LT |
1798 | out_free_cd: |
1799 | kfree(info); | |
1800 | failed: | |
8604affd | 1801 | return -ENODEV; |
1da177e4 LT |
1802 | } |
1803 | ||
1804 | static void __exit ide_cdrom_exit(void) | |
1805 | { | |
8604affd | 1806 | driver_unregister(&ide_cdrom_driver.gen_driver); |
1da177e4 | 1807 | } |
17514e8a BZ |
1808 | |
1809 | static int __init ide_cdrom_init(void) | |
1da177e4 | 1810 | { |
fc8323f7 | 1811 | printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n"); |
8604affd | 1812 | return driver_register(&ide_cdrom_driver.gen_driver); |
1da177e4 LT |
1813 | } |
1814 | ||
263756ec | 1815 | MODULE_ALIAS("ide:*m-cdrom*"); |
972560fb | 1816 | MODULE_ALIAS("ide-cd"); |
1da177e4 LT |
1817 | module_init(ide_cdrom_init); |
1818 | module_exit(ide_cdrom_exit); | |
1819 | MODULE_LICENSE("GPL"); |