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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> | |
31 | #include <linux/delay.h> | |
32 | #include <linux/timer.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/interrupt.h> | |
35 | #include <linux/errno.h> | |
36 | #include <linux/cdrom.h> | |
37 | #include <linux/ide.h> | |
38 | #include <linux/completion.h> | |
cf8b8975 | 39 | #include <linux/mutex.h> |
9a6dc668 | 40 | #include <linux/bcd.h> |
1da177e4 | 41 | |
5a3ea3b4 BP |
42 | /* For SCSI -> ATAPI command conversion */ |
43 | #include <scsi/scsi.h> | |
1da177e4 | 44 | |
9aba468e BP |
45 | #include <linux/irq.h> |
46 | #include <linux/io.h> | |
1da177e4 | 47 | #include <asm/byteorder.h> |
9aba468e | 48 | #include <linux/uaccess.h> |
1da177e4 LT |
49 | #include <asm/unaligned.h> |
50 | ||
51 | #include "ide-cd.h" | |
52 | ||
cf8b8975 | 53 | static DEFINE_MUTEX(idecd_ref_mutex); |
1da177e4 | 54 | |
8fed4368 | 55 | static void ide_cd_release(struct device *); |
08da591e | 56 | |
1da177e4 LT |
57 | static struct cdrom_info *ide_cd_get(struct gendisk *disk) |
58 | { | |
59 | struct cdrom_info *cd = NULL; | |
60 | ||
cf8b8975 | 61 | mutex_lock(&idecd_ref_mutex); |
5aeddf90 | 62 | cd = ide_drv_g(disk, cdrom_info); |
08da591e | 63 | if (cd) { |
d3e33ff5 | 64 | if (ide_device_get(cd->drive)) |
08da591e | 65 | cd = NULL; |
d3e33ff5 | 66 | else |
8fed4368 | 67 | get_device(&cd->dev); |
d3e33ff5 | 68 | |
08da591e | 69 | } |
cf8b8975 | 70 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
71 | return cd; |
72 | } | |
73 | ||
1da177e4 LT |
74 | static void ide_cd_put(struct cdrom_info *cd) |
75 | { | |
d3e33ff5 BZ |
76 | ide_drive_t *drive = cd->drive; |
77 | ||
cf8b8975 | 78 | mutex_lock(&idecd_ref_mutex); |
8fed4368 | 79 | put_device(&cd->dev); |
d3e33ff5 | 80 | ide_device_put(drive); |
cf8b8975 | 81 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
82 | } |
83 | ||
5a3ea3b4 | 84 | /* |
1da177e4 LT |
85 | * Generic packet command support and error handling routines. |
86 | */ | |
87 | ||
5a3ea3b4 | 88 | /* Mark that we've seen a media change and invalidate our internal buffers. */ |
9ce70fb2 | 89 | static void cdrom_saw_media_change(ide_drive_t *drive) |
1da177e4 | 90 | { |
fe11edfa | 91 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
570f89ea | 92 | drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
93 | } |
94 | ||
95 | static int cdrom_log_sense(ide_drive_t *drive, struct request *rq, | |
96 | struct request_sense *sense) | |
97 | { | |
98 | int log = 0; | |
99 | ||
088b1b88 | 100 | ide_debug_log(IDE_DBG_SENSE, "sense_key: 0x%x", sense->sense_key); |
fc8323f7 | 101 | |
4aff5e23 | 102 | if (!sense || !rq || (rq->cmd_flags & REQ_QUIET)) |
1da177e4 LT |
103 | return 0; |
104 | ||
105 | switch (sense->sense_key) { | |
9ce70fb2 PC |
106 | case NO_SENSE: |
107 | case RECOVERED_ERROR: | |
108 | break; | |
109 | case NOT_READY: | |
110 | /* | |
5a3ea3b4 BP |
111 | * don't care about tray state messages for e.g. capacity |
112 | * commands or in-progress or becoming ready | |
9ce70fb2 PC |
113 | */ |
114 | if (sense->asc == 0x3a || sense->asc == 0x04) | |
1da177e4 | 115 | break; |
9ce70fb2 PC |
116 | log = 1; |
117 | break; | |
118 | case ILLEGAL_REQUEST: | |
119 | /* | |
5a3ea3b4 BP |
120 | * don't log START_STOP unit with LoEj set, since we cannot |
121 | * reliably check if drive can auto-close | |
9ce70fb2 PC |
122 | */ |
123 | if (rq->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24) | |
1da177e4 | 124 | break; |
9ce70fb2 PC |
125 | log = 1; |
126 | break; | |
127 | case UNIT_ATTENTION: | |
128 | /* | |
5a3ea3b4 BP |
129 | * Make good and sure we've seen this potential media change. |
130 | * Some drives (i.e. Creative) fail to present the correct sense | |
131 | * key in the error register. | |
9ce70fb2 PC |
132 | */ |
133 | cdrom_saw_media_change(drive); | |
134 | break; | |
135 | default: | |
136 | log = 1; | |
137 | break; | |
1da177e4 LT |
138 | } |
139 | return log; | |
140 | } | |
141 | ||
e5e076a3 | 142 | static void cdrom_analyze_sense_data(ide_drive_t *drive, |
1da177e4 LT |
143 | struct request *failed_command, |
144 | struct request_sense *sense) | |
145 | { | |
dbe217af AC |
146 | unsigned long sector; |
147 | unsigned long bio_sectors; | |
dbe217af AC |
148 | struct cdrom_info *info = drive->driver_data; |
149 | ||
088b1b88 BP |
150 | ide_debug_log(IDE_DBG_SENSE, "error_code: 0x%x, sense_key: 0x%x", |
151 | sense->error_code, sense->sense_key); | |
fc8323f7 BP |
152 | |
153 | if (failed_command) | |
088b1b88 BP |
154 | ide_debug_log(IDE_DBG_SENSE, "failed cmd: 0x%x", |
155 | failed_command->cmd[0]); | |
fc8323f7 | 156 | |
1da177e4 LT |
157 | if (!cdrom_log_sense(drive, failed_command, sense)) |
158 | return; | |
159 | ||
160 | /* | |
5a3ea3b4 BP |
161 | * If a read toc is executed for a CD-R or CD-RW medium where the first |
162 | * toc has not been recorded yet, it will fail with 05/24/00 (which is a | |
163 | * confusing error) | |
1da177e4 LT |
164 | */ |
165 | if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP) | |
166 | if (sense->sense_key == 0x05 && sense->asc == 0x24) | |
167 | return; | |
168 | ||
5a3ea3b4 BP |
169 | /* current error */ |
170 | if (sense->error_code == 0x70) { | |
9ce70fb2 | 171 | switch (sense->sense_key) { |
dbe217af AC |
172 | case MEDIUM_ERROR: |
173 | case VOLUME_OVERFLOW: | |
174 | case ILLEGAL_REQUEST: | |
175 | if (!sense->valid) | |
176 | break; | |
177 | if (failed_command == NULL || | |
178 | !blk_fs_request(failed_command)) | |
179 | break; | |
180 | sector = (sense->information[0] << 24) | | |
181 | (sense->information[1] << 16) | | |
182 | (sense->information[2] << 8) | | |
183 | (sense->information[3]); | |
184 | ||
dbe217af | 185 | if (drive->queue->hardsect_size == 2048) |
5a3ea3b4 BP |
186 | /* device sector size is 2K */ |
187 | sector <<= 2; | |
eee49298 RK |
188 | |
189 | bio_sectors = max(bio_sectors(failed_command->bio), 4U); | |
9ce70fb2 | 190 | sector &= ~(bio_sectors - 1); |
dbe217af | 191 | |
d3dd7107 BZ |
192 | /* |
193 | * The SCSI specification allows for the value | |
194 | * returned by READ CAPACITY to be up to 75 2K | |
195 | * sectors past the last readable block. | |
196 | * Therefore, if we hit a medium error within the | |
197 | * last 75 2K sectors, we decrease the saved size | |
198 | * value. | |
199 | */ | |
dbe217af | 200 | if (sector < get_capacity(info->disk) && |
e5e076a3 | 201 | drive->probed_capacity - sector < 4 * 75) |
dbe217af | 202 | set_capacity(info->disk, sector); |
9ce70fb2 PC |
203 | } |
204 | } | |
1da177e4 | 205 | |
972560fb | 206 | ide_cd_log_error(drive->name, failed_command, sense); |
1da177e4 LT |
207 | } |
208 | ||
299c4852 BZ |
209 | static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq) |
210 | { | |
211 | /* | |
1f181d2b | 212 | * For REQ_TYPE_SENSE, "rq->special" points to the original |
02e7cf8f TH |
213 | * failed request. Also, the sense data should be read |
214 | * directly from rq which might be different from the original | |
215 | * sense buffer if it got copied during mapping. | |
299c4852 | 216 | */ |
1f181d2b | 217 | struct request *failed = (struct request *)rq->special; |
02e7cf8f | 218 | void *sense = bio_data(rq->bio); |
299c4852 BZ |
219 | |
220 | if (failed) { | |
221 | if (failed->sense) { | |
c457ce87 BP |
222 | /* |
223 | * Sense is always read into drive->sense_data. | |
224 | * Copy back if the failed request has its | |
225 | * sense pointer set. | |
226 | */ | |
227 | memcpy(failed->sense, sense, 18); | |
299c4852 BZ |
228 | sense = failed->sense; |
229 | failed->sense_len = rq->sense_len; | |
230 | } | |
231 | cdrom_analyze_sense_data(drive, failed, sense); | |
232 | ||
233 | if (ide_end_rq(drive, failed, -EIO, blk_rq_bytes(failed))) | |
234 | BUG(); | |
235 | } else | |
236 | cdrom_analyze_sense_data(drive, NULL, sense); | |
237 | } | |
238 | ||
805ec58a | 239 | |
5a3ea3b4 | 240 | /* |
805ec58a BP |
241 | * Allow the drive 5 seconds to recover; some devices will return NOT_READY |
242 | * while flushing data from cache. | |
243 | * | |
244 | * returns: 0 failed (write timeout expired) | |
245 | * 1 success | |
246 | */ | |
247 | static int ide_cd_breathe(ide_drive_t *drive, struct request *rq) | |
248 | { | |
249 | ||
250 | struct cdrom_info *info = drive->driver_data; | |
251 | ||
252 | if (!rq->errors) | |
253 | info->write_timeout = jiffies + ATAPI_WAIT_WRITE_BUSY; | |
254 | ||
255 | rq->errors = 1; | |
256 | ||
257 | if (time_after(jiffies, info->write_timeout)) | |
258 | return 0; | |
259 | else { | |
260 | struct request_queue *q = drive->queue; | |
261 | unsigned long flags; | |
262 | ||
263 | /* | |
264 | * take a breather relying on the unplug timer to kick us again | |
265 | */ | |
266 | ||
267 | spin_lock_irqsave(q->queue_lock, flags); | |
268 | blk_plug_device(q); | |
269 | spin_unlock_irqrestore(q->queue_lock, flags); | |
270 | ||
271 | return 1; | |
272 | } | |
273 | } | |
274 | ||
275 | /** | |
5a3ea3b4 BP |
276 | * Returns: |
277 | * 0: if the request should be continued. | |
8a116974 BZ |
278 | * 1: if the request will be going through error recovery. |
279 | * 2: if the request should be ended. | |
5a3ea3b4 | 280 | */ |
8e59bfde | 281 | static int cdrom_decode_status(ide_drive_t *drive, u8 stat) |
1da177e4 | 282 | { |
b73c7ee2 | 283 | ide_hwif_t *hwif = drive->hwif; |
b65fac32 | 284 | struct request *rq = hwif->rq; |
674f0ea1 | 285 | int err, sense_key, do_end_request = 0; |
dfa4411c | 286 | u8 quiet = rq->cmd_flags & REQ_QUIET; |
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 | |
4aff5e23 | 296 | if (blk_sense_request(rq)) { |
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 BZ |
306 | /* if we have an error, pass CHECK_CONDITION as the SCSI status byte */ |
307 | if (blk_pc_request(rq) && !rq->errors) | |
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: | |
3c8a48e9 BP |
315 | if (blk_fs_request(rq) && rq_data_dir(rq) == WRITE) { |
316 | if (ide_cd_breathe(drive, rq)) | |
317 | return 1; | |
318 | } else { | |
e5e076a3 | 319 | cdrom_saw_media_change(drive); |
1da177e4 | 320 | |
674f0ea1 BZ |
321 | if (blk_fs_request(rq) && !quiet) |
322 | printk(KERN_ERR PFX "%s: tray open\n", | |
323 | drive->name); | |
1da177e4 | 324 | } |
674f0ea1 BZ |
325 | do_end_request = 1; |
326 | break; | |
327 | case UNIT_ATTENTION: | |
328 | cdrom_saw_media_change(drive); | |
1da177e4 | 329 | |
674f0ea1 BZ |
330 | if (blk_fs_request(rq) == 0) |
331 | return 0; | |
1920c48d | 332 | |
5a3ea3b4 | 333 | /* |
674f0ea1 BZ |
334 | * Arrange to retry the request but be sure to give up if we've |
335 | * retried too many times. | |
5a3ea3b4 | 336 | */ |
674f0ea1 BZ |
337 | if (++rq->errors > ERROR_MAX) |
338 | do_end_request = 1; | |
339 | break; | |
340 | case ILLEGAL_REQUEST: | |
bbb89e3d | 341 | /* |
674f0ea1 BZ |
342 | * Don't print error message for this condition -- SFF8090i |
343 | * indicates that 5/24/00 is the correct response to a request | |
344 | * to close the tray if the drive doesn't have that capability. | |
345 | * | |
346 | * cdrom_log_sense() knows this! | |
bbb89e3d | 347 | */ |
674f0ea1 BZ |
348 | if (rq->cmd[0] == GPCMD_START_STOP_UNIT) |
349 | break; | |
350 | /* fall-through */ | |
351 | case DATA_PROTECT: | |
352 | /* | |
353 | * No point in retrying after an illegal request or data | |
354 | * protect error. | |
355 | */ | |
356 | if (!quiet) | |
357 | ide_dump_status(drive, "command error", stat); | |
358 | do_end_request = 1; | |
359 | break; | |
360 | case MEDIUM_ERROR: | |
361 | /* | |
362 | * No point in re-trying a zillion times on a bad sector. | |
363 | * If we got here the error is not correctable. | |
364 | */ | |
365 | if (!quiet) | |
366 | ide_dump_status(drive, "media error " | |
367 | "(bad sector)", stat); | |
368 | do_end_request = 1; | |
369 | break; | |
370 | case BLANK_CHECK: | |
371 | /* disk appears blank? */ | |
372 | if (!quiet) | |
373 | ide_dump_status(drive, "media error (blank)", | |
374 | stat); | |
375 | do_end_request = 1; | |
376 | break; | |
377 | default: | |
378 | if (blk_fs_request(rq) == 0) | |
379 | break; | |
380 | if (err & ~ATA_ABORTED) { | |
381 | /* go to the default handler for other errors */ | |
382 | ide_error(drive, "cdrom_decode_status", stat); | |
383 | return 1; | |
384 | } else if (++rq->errors > ERROR_MAX) | |
385 | /* we've racked up too many retries, abort */ | |
386 | do_end_request = 1; | |
1da177e4 LT |
387 | } |
388 | ||
674f0ea1 BZ |
389 | if (blk_fs_request(rq) == 0) { |
390 | rq->cmd_flags |= REQ_FAILED; | |
391 | do_end_request = 1; | |
392 | } | |
393 | ||
394 | /* | |
395 | * End a request through request sense analysis when we have sense data. | |
396 | * We need this in order to perform end of media processing. | |
397 | */ | |
398 | if (do_end_request) | |
399 | goto end_request; | |
400 | ||
401 | /* if we got a CHECK_CONDITION status, queue a request sense command */ | |
402 | if (stat & ATA_ERR) | |
02e7cf8f | 403 | return ide_queue_sense_rq(drive, NULL) ? 2 : 1; |
674f0ea1 BZ |
404 | return 1; |
405 | ||
bbb89e3d | 406 | end_request: |
3a7d2484 | 407 | if (stat & ATA_ERR) { |
b65fac32 | 408 | hwif->rq = NULL; |
02e7cf8f | 409 | return ide_queue_sense_rq(drive, rq) ? 2 : 1; |
bbb89e3d | 410 | } else |
8a116974 | 411 | return 2; |
1da177e4 LT |
412 | } |
413 | ||
1da177e4 LT |
414 | /* |
415 | * Check the contents of the interrupt reason register from the cdrom | |
416 | * and attempt to recover if there are problems. Returns 0 if everything's | |
417 | * ok; nonzero if the request has been terminated. | |
418 | */ | |
9f10d9ee BZ |
419 | static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, |
420 | int len, int ireason, int rw) | |
1da177e4 | 421 | { |
b73c7ee2 BZ |
422 | ide_hwif_t *hwif = drive->hwif; |
423 | ||
088b1b88 | 424 | ide_debug_log(IDE_DBG_FUNC, "ireason: 0x%x, rw: 0x%x", ireason, rw); |
fc8323f7 | 425 | |
0d6f7e3a BZ |
426 | /* |
427 | * ireason == 0: the drive wants to receive data from us | |
428 | * ireason == 2: the drive is expecting to transfer data to us | |
429 | */ | |
430 | if (ireason == (!rw << 1)) | |
1da177e4 | 431 | return 0; |
0d6f7e3a | 432 | else if (ireason == (rw << 1)) { |
5a5222d9 | 433 | |
5a3ea3b4 | 434 | /* whoops... */ |
fc8323f7 | 435 | printk(KERN_ERR PFX "%s: %s: wrong transfer direction!\n", |
177773ed | 436 | drive->name, __func__); |
1da177e4 | 437 | |
ae8789f0 | 438 | ide_pad_transfer(drive, rw, len); |
0d6f7e3a | 439 | } else if (rw == 0 && ireason == 1) { |
5a3ea3b4 BP |
440 | /* |
441 | * Some drives (ASUS) seem to tell us that status info is | |
442 | * available. Just get it and ignore. | |
1da177e4 | 443 | */ |
374e042c | 444 | (void)hwif->tp_ops->read_status(hwif); |
1da177e4 LT |
445 | return 0; |
446 | } else { | |
5a3ea3b4 | 447 | /* drive wants a command packet, or invalid ireason... */ |
fc8323f7 | 448 | printk(KERN_ERR PFX "%s: %s: bad interrupt reason 0x%02x\n", |
177773ed | 449 | drive->name, __func__, ireason); |
1da177e4 LT |
450 | } |
451 | ||
9f10d9ee BZ |
452 | if (rq->cmd_type == REQ_TYPE_ATA_PC) |
453 | rq->cmd_flags |= REQ_FAILED; | |
454 | ||
1da177e4 LT |
455 | return -1; |
456 | } | |
457 | ||
c7ec8999 | 458 | static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct ide_cmd *cmd) |
8ee69f5a | 459 | { |
c7ec8999 BZ |
460 | struct request *rq = cmd->rq; |
461 | ||
088b1b88 | 462 | ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]); |
fc8323f7 | 463 | |
8ee69f5a BZ |
464 | /* |
465 | * Some of the trailing request sense fields are optional, | |
466 | * and some drives don't send them. Sigh. | |
467 | */ | |
468 | if (rq->cmd[0] == GPCMD_REQUEST_SENSE && | |
59a4f6f3 TH |
469 | cmd->nleft > 0 && cmd->nleft <= 5) |
470 | cmd->nleft = 0; | |
8ee69f5a BZ |
471 | } |
472 | ||
5f828546 FT |
473 | int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, |
474 | int write, void *buffer, unsigned *bufflen, | |
475 | struct request_sense *sense, int timeout, | |
476 | unsigned int cmd_flags) | |
1da177e4 | 477 | { |
5f828546 FT |
478 | struct cdrom_info *info = drive->driver_data; |
479 | struct request_sense local_sense; | |
1da177e4 | 480 | int retries = 10; |
5f828546 | 481 | unsigned int flags = 0; |
1da177e4 | 482 | |
5f828546 FT |
483 | if (!sense) |
484 | sense = &local_sense; | |
1da177e4 | 485 | |
088b1b88 BP |
486 | ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, " |
487 | "cmd_flags: 0x%x", | |
488 | cmd[0], write, timeout, cmd_flags); | |
fc8323f7 | 489 | |
5a3ea3b4 | 490 | /* start of retry loop */ |
1da177e4 | 491 | do { |
5f828546 | 492 | struct request *rq; |
1da177e4 | 493 | int error; |
1da177e4 | 494 | |
5f828546 FT |
495 | rq = blk_get_request(drive->queue, write, __GFP_WAIT); |
496 | ||
497 | memcpy(rq->cmd, cmd, BLK_MAX_CDB); | |
498 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
499 | rq->sense = sense; | |
500 | rq->cmd_flags |= cmd_flags; | |
501 | rq->timeout = timeout; | |
502 | if (buffer) { | |
02e7cf8f TH |
503 | error = blk_rq_map_kern(drive->queue, rq, buffer, |
504 | *bufflen, GFP_NOIO); | |
505 | if (error) { | |
506 | blk_put_request(rq); | |
507 | return error; | |
508 | } | |
5f828546 FT |
509 | } |
510 | ||
511 | error = blk_execute_rq(drive->queue, info->disk, rq, 0); | |
512 | ||
513 | if (buffer) | |
c3a4d78c | 514 | *bufflen = rq->resid_len; |
5f828546 FT |
515 | |
516 | flags = rq->cmd_flags; | |
517 | blk_put_request(rq); | |
1da177e4 | 518 | |
5a3ea3b4 BP |
519 | /* |
520 | * FIXME: we should probably abort/retry or something in case of | |
521 | * failure. | |
522 | */ | |
5f828546 | 523 | if (flags & REQ_FAILED) { |
5a3ea3b4 BP |
524 | /* |
525 | * The request failed. Retry if it was due to a unit | |
526 | * attention status (usually means media was changed). | |
527 | */ | |
5f828546 | 528 | struct request_sense *reqbuf = sense; |
1da177e4 LT |
529 | |
530 | if (reqbuf->sense_key == UNIT_ATTENTION) | |
531 | cdrom_saw_media_change(drive); | |
532 | else if (reqbuf->sense_key == NOT_READY && | |
533 | reqbuf->asc == 4 && reqbuf->ascq != 4) { | |
5a3ea3b4 BP |
534 | /* |
535 | * The drive is in the process of loading | |
536 | * a disk. Retry, but wait a little to give | |
537 | * the drive time to complete the load. | |
538 | */ | |
1da177e4 LT |
539 | ssleep(2); |
540 | } else { | |
5a3ea3b4 | 541 | /* otherwise, don't retry */ |
1da177e4 LT |
542 | retries = 0; |
543 | } | |
544 | --retries; | |
545 | } | |
546 | ||
5a3ea3b4 | 547 | /* end of retry loop */ |
5f828546 | 548 | } while ((flags & REQ_FAILED) && retries >= 0); |
1da177e4 | 549 | |
5a3ea3b4 | 550 | /* return an error if the command failed */ |
5f828546 | 551 | return (flags & REQ_FAILED) ? -EIO : 0; |
1da177e4 LT |
552 | } |
553 | ||
a08915ba BZ |
554 | static void ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd) |
555 | { | |
556 | unsigned int nr_bytes = cmd->nbytes - cmd->nleft; | |
557 | ||
558 | if (cmd->tf_flags & IDE_TFLAG_WRITE) | |
559 | nr_bytes -= cmd->last_xfer_len; | |
560 | ||
561 | if (nr_bytes > 0) | |
562 | ide_complete_rq(drive, 0, nr_bytes); | |
563 | } | |
564 | ||
1da177e4 LT |
565 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) |
566 | { | |
23579a2a | 567 | ide_hwif_t *hwif = drive->hwif; |
a08915ba | 568 | struct ide_cmd *cmd = &hwif->cmd; |
b65fac32 | 569 | struct request *rq = hwif->rq; |
0041e7c6 | 570 | ide_expiry_t *expiry = NULL; |
8e59bfde | 571 | int dma_error = 0, dma, thislen, uptodate = 0; |
34b7d2c9 | 572 | int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc = 0; |
8a116974 | 573 | int sense = blk_sense_request(rq); |
ff1bfbc1 | 574 | unsigned int timeout; |
1823649b | 575 | u16 len; |
8e59bfde | 576 | u8 ireason, stat; |
1da177e4 | 577 | |
98036abf | 578 | ide_debug_log(IDE_DBG_PC, "cmd: 0x%x, write: 0x%x", rq->cmd[0], write); |
fc8323f7 | 579 | |
5a3ea3b4 | 580 | /* check for errors */ |
12469ac0 | 581 | dma = drive->dma; |
1da177e4 | 582 | if (dma) { |
12469ac0 | 583 | drive->dma = 0; |
88b4132e | 584 | drive->waiting_for_dma = 0; |
5e37bdc0 | 585 | dma_error = hwif->dma_ops->dma_end(drive); |
f094d4d8 | 586 | ide_dma_unmap_sg(drive, cmd); |
eba15fba | 587 | if (dma_error) { |
fc8323f7 | 588 | printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name, |
ff1bfbc1 | 589 | write ? "write" : "read"); |
eba15fba BZ |
590 | ide_dma_off(drive); |
591 | } | |
1da177e4 LT |
592 | } |
593 | ||
8e59bfde BP |
594 | /* check status */ |
595 | stat = hwif->tp_ops->read_status(hwif); | |
596 | ||
597 | if (!OK_STAT(stat, 0, BAD_R_STAT)) { | |
598 | rc = cdrom_decode_status(drive, stat); | |
599 | if (rc) { | |
600 | if (rc == 2) | |
601 | goto out_end; | |
602 | return ide_stopped; | |
603 | } | |
8a116974 | 604 | } |
1da177e4 | 605 | |
5a3ea3b4 | 606 | /* using dma, transfer is complete now */ |
1da177e4 | 607 | if (dma) { |
eba15fba | 608 | if (dma_error) |
1da177e4 | 609 | return ide_error(drive, "dma error", stat); |
4a3d8cf4 | 610 | uptodate = 1; |
984c5e59 | 611 | goto out_end; |
1da177e4 LT |
612 | } |
613 | ||
1823649b | 614 | ide_read_bcount_and_ireason(drive, &len, &ireason); |
0041e7c6 | 615 | |
c7ec8999 | 616 | thislen = blk_fs_request(rq) ? len : cmd->nleft; |
1da177e4 LT |
617 | if (thislen > len) |
618 | thislen = len; | |
619 | ||
088b1b88 BP |
620 | ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d", |
621 | stat, thislen); | |
fc8323f7 | 622 | |
5a3ea3b4 | 623 | /* If DRQ is clear, the command has completed. */ |
3a7d2484 | 624 | if ((stat & ATA_DRQ) == 0) { |
0041e7c6 BZ |
625 | if (blk_fs_request(rq)) { |
626 | /* | |
627 | * If we're not done reading/writing, complain. | |
628 | * Otherwise, complete the command normally. | |
629 | */ | |
630 | uptodate = 1; | |
a08915ba | 631 | if (cmd->nleft > 0) { |
fc8323f7 | 632 | printk(KERN_ERR PFX "%s: %s: data underrun " |
a08915ba BZ |
633 | "(%u bytes)\n", drive->name, __func__, |
634 | cmd->nleft); | |
0041e7c6 BZ |
635 | if (!write) |
636 | rq->cmd_flags |= REQ_FAILED; | |
637 | uptodate = 0; | |
638 | } | |
0041e7c6 | 639 | } else if (!blk_pc_request(rq)) { |
c7ec8999 | 640 | ide_cd_request_sense_fixup(drive, cmd); |
5a3ea3b4 | 641 | /* complain if we still have data left to transfer */ |
c7ec8999 | 642 | uptodate = cmd->nleft ? 0 : 1; |
984c5e59 BZ |
643 | if (uptodate == 0) |
644 | rq->cmd_flags |= REQ_FAILED; | |
ff1bfbc1 | 645 | } |
984c5e59 | 646 | goto out_end; |
aaa04c28 | 647 | } |
1da177e4 | 648 | |
5a3ea3b4 | 649 | /* check which way to transfer data */ |
8a116974 BZ |
650 | rc = ide_cd_check_ireason(drive, rq, len, ireason, write); |
651 | if (rc) | |
652 | goto out_end; | |
0041e7c6 | 653 | |
06a449e3 | 654 | cmd->last_xfer_len = 0; |
1da177e4 | 655 | |
088b1b88 BP |
656 | ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, " |
657 | "ireason: 0x%x", | |
658 | rq->cmd_type, ireason); | |
fc8323f7 | 659 | |
5a3ea3b4 | 660 | /* transfer data */ |
1da177e4 | 661 | while (thislen > 0) { |
c7ec8999 | 662 | int blen = min_t(int, thislen, cmd->nleft); |
1da177e4 | 663 | |
14fa91cc | 664 | if (cmd->nleft == 0) |
1da177e4 | 665 | break; |
1da177e4 | 666 | |
c7ec8999 BZ |
667 | ide_pio_bytes(drive, cmd, write, blen); |
668 | cmd->last_xfer_len += blen; | |
1da177e4 LT |
669 | |
670 | thislen -= blen; | |
671 | len -= blen; | |
1da177e4 | 672 | |
8a116974 | 673 | if (sense && write == 0) |
bcd88ac3 | 674 | rq->sense_len += blen; |
1da177e4 LT |
675 | } |
676 | ||
5a3ea3b4 | 677 | /* pad, if necessary */ |
14fa91cc BZ |
678 | if (len > 0) { |
679 | if (blk_fs_request(rq) == 0 || write == 0) | |
680 | ide_pad_transfer(drive, write, len); | |
681 | else { | |
682 | printk(KERN_ERR PFX "%s: confused, missing data\n", | |
683 | drive->name); | |
684 | blk_dump_rq_flags(rq, "cdrom_newpc_intr"); | |
685 | } | |
686 | } | |
1da177e4 | 687 | |
ff1bfbc1 BZ |
688 | if (blk_pc_request(rq)) { |
689 | timeout = rq->timeout; | |
ff1bfbc1 BZ |
690 | } else { |
691 | timeout = ATAPI_WAIT_PC; | |
0041e7c6 | 692 | if (!blk_fs_request(rq)) |
4cad085e | 693 | expiry = ide_cd_expiry; |
ff1bfbc1 BZ |
694 | } |
695 | ||
60c0cd02 BZ |
696 | hwif->expiry = expiry; |
697 | ide_set_handler(drive, cdrom_newpc_intr, timeout); | |
1da177e4 | 698 | return ide_started; |
ff1bfbc1 | 699 | |
984c5e59 | 700 | out_end: |
8a116974 | 701 | if (blk_pc_request(rq) && rc == 0) { |
34b7d2c9 | 702 | blk_end_request_all(rq, 0); |
b65fac32 | 703 | hwif->rq = NULL; |
ff1bfbc1 | 704 | } else { |
f63174e7 BZ |
705 | if (sense && uptodate) |
706 | ide_cd_complete_failed_rq(drive, rq); | |
707 | ||
708 | if (blk_fs_request(rq)) { | |
a08915ba | 709 | if (cmd->nleft == 0) |
f63174e7 BZ |
710 | uptodate = 1; |
711 | } else { | |
712 | if (uptodate <= 0 && rq->errors == 0) | |
713 | rq->errors = -EIO; | |
714 | } | |
715 | ||
c7ec8999 BZ |
716 | if (uptodate == 0) |
717 | ide_cd_error_cmd(drive, cmd); | |
718 | ||
f63174e7 | 719 | /* make sure it's fully ended */ |
c7ec8999 | 720 | if (blk_fs_request(rq) == 0) { |
34b7d2c9 | 721 | rq->resid_len = blk_rq_bytes(rq) - |
c3a4d78c | 722 | (cmd->nbytes - cmd->nleft); |
c7ec8999 | 723 | if (uptodate == 0 && (cmd->tf_flags & IDE_TFLAG_WRITE)) |
c3a4d78c | 724 | rq->resid_len += cmd->last_xfer_len; |
c7ec8999 BZ |
725 | } |
726 | ||
34b7d2c9 | 727 | ide_complete_rq(drive, uptodate ? 0 : -EIO, blk_rq_bytes(rq)); |
f63174e7 | 728 | |
8a116974 BZ |
729 | if (sense && rc == 2) |
730 | ide_error(drive, "request sense failure", stat); | |
ff1bfbc1 BZ |
731 | } |
732 | return ide_stopped; | |
1da177e4 LT |
733 | } |
734 | ||
21ea1f0f | 735 | static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) |
1da177e4 | 736 | { |
21ea1f0f | 737 | struct cdrom_info *cd = drive->driver_data; |
a08915ba | 738 | struct request_queue *q = drive->queue; |
21ea1f0f BZ |
739 | int write = rq_data_dir(rq) == WRITE; |
740 | unsigned short sectors_per_frame = | |
a08915ba | 741 | queue_hardsect_size(q) >> SECTOR_BITS; |
1da177e4 | 742 | |
8652b31a | 743 | ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, rq->cmd_flags: 0x%x, " |
088b1b88 | 744 | "secs_per_frame: %u", |
8652b31a | 745 | rq->cmd[0], rq->cmd_flags, sectors_per_frame); |
fc8323f7 | 746 | |
21ea1f0f | 747 | if (write) { |
5a3ea3b4 | 748 | /* disk has become write protected */ |
e0458ccb | 749 | if (get_disk_ro(cd->disk)) |
21ea1f0f | 750 | return ide_stopped; |
21ea1f0f BZ |
751 | } else { |
752 | /* | |
753 | * We may be retrying this request after an error. Fix up any | |
754 | * weirdness which might be present in the request packet. | |
755 | */ | |
a08915ba | 756 | q->prep_rq_fn(q, rq); |
1da177e4 LT |
757 | } |
758 | ||
a08915ba | 759 | /* fs requests *must* be hardware frame aligned */ |
9780e2dd TH |
760 | if ((blk_rq_sectors(rq) & (sectors_per_frame - 1)) || |
761 | (blk_rq_pos(rq) & (sectors_per_frame - 1))) | |
a08915ba BZ |
762 | return ide_stopped; |
763 | ||
764 | /* use DMA, if possible */ | |
765 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); | |
1da177e4 | 766 | |
21ea1f0f BZ |
767 | if (write) |
768 | cd->devinfo.media_written = 1; | |
1da177e4 | 769 | |
8652b31a BZ |
770 | rq->timeout = ATAPI_WAIT_PC; |
771 | ||
b6ca440a | 772 | return ide_started; |
1da177e4 LT |
773 | } |
774 | ||
b6ca440a | 775 | static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) |
1da177e4 | 776 | { |
1da177e4 | 777 | |
088b1b88 BP |
778 | ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x", |
779 | rq->cmd[0], rq->cmd_type); | |
fc8323f7 | 780 | |
c9f56a80 BZ |
781 | if (blk_pc_request(rq)) |
782 | rq->cmd_flags |= REQ_QUIET; | |
783 | else | |
784 | rq->cmd_flags &= ~REQ_FAILED; | |
1da177e4 | 785 | |
12469ac0 | 786 | drive->dma = 0; |
1da177e4 | 787 | |
5a3ea3b4 | 788 | /* sg request */ |
02e7cf8f | 789 | if (rq->bio) { |
e5318b53 | 790 | struct request_queue *q = drive->queue; |
02e7cf8f | 791 | char *buf = bio_data(rq->bio); |
e5318b53 | 792 | unsigned int alignment; |
e5318b53 | 793 | |
12469ac0 | 794 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
1da177e4 LT |
795 | |
796 | /* | |
797 | * check if dma is safe | |
5d9e4ea5 LT |
798 | * |
799 | * NOTE! The "len" and "addr" checks should possibly have | |
800 | * separate masks. | |
1da177e4 | 801 | */ |
e5318b53 | 802 | alignment = queue_dma_alignment(q) | q->dma_pad_mask; |
9bd27cba | 803 | if ((unsigned long)buf & alignment |
34b7d2c9 | 804 | || blk_rq_bytes(rq) & q->dma_pad_mask |
efa402d5 | 805 | || object_is_on_stack(buf)) |
12469ac0 | 806 | drive->dma = 0; |
1da177e4 | 807 | } |
1da177e4 LT |
808 | } |
809 | ||
99384aea | 810 | static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, |
e5e076a3 | 811 | sector_t block) |
1da177e4 | 812 | { |
b788ee9c | 813 | struct ide_cmd cmd; |
f63174e7 | 814 | int uptodate = 0, nsectors; |
b788ee9c | 815 | |
088b1b88 BP |
816 | ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu", |
817 | rq->cmd[0], (unsigned long long)block); | |
818 | ||
819 | if (drive->debug_mask & IDE_DBG_RQ) | |
820 | blk_dump_rq_flags(rq, "ide_cd_do_request"); | |
fc8323f7 | 821 | |
1da177e4 | 822 | if (blk_fs_request(rq)) { |
8652b31a | 823 | if (cdrom_start_rw(drive, rq) == ide_stopped) |
e0458ccb | 824 | goto out_end; |
c9f56a80 | 825 | } else if (blk_sense_request(rq) || blk_pc_request(rq) || |
cea2885a | 826 | rq->cmd_type == REQ_TYPE_ATA_PC) { |
7fcebda5 BP |
827 | if (!rq->timeout) |
828 | rq->timeout = ATAPI_WAIT_PC; | |
829 | ||
b6ca440a | 830 | cdrom_do_block_pc(drive, rq); |
4aff5e23 | 831 | } else if (blk_special_request(rq)) { |
5a3ea3b4 | 832 | /* right now this can only be a reset... */ |
e0458ccb BZ |
833 | uptodate = 1; |
834 | goto out_end; | |
ab9d6e33 | 835 | } else { |
fc8323f7 | 836 | blk_dump_rq_flags(rq, DRV_NAME " bad flags"); |
5ed57ad7 BZ |
837 | if (rq->errors == 0) |
838 | rq->errors = -EIO; | |
e0458ccb | 839 | goto out_end; |
1da177e4 | 840 | } |
b6ca440a | 841 | |
c457ce87 BP |
842 | /* prepare sense request for this command */ |
843 | ide_prep_sense(drive, rq); | |
844 | ||
b788ee9c BZ |
845 | memset(&cmd, 0, sizeof(cmd)); |
846 | ||
847 | if (rq_data_dir(rq)) | |
848 | cmd.tf_flags |= IDE_TFLAG_WRITE; | |
849 | ||
850 | cmd.rq = rq; | |
851 | ||
34b7d2c9 TH |
852 | if (blk_fs_request(rq) || blk_rq_bytes(rq)) { |
853 | ide_init_sg_cmd(&cmd, blk_rq_bytes(rq)); | |
a08915ba BZ |
854 | ide_map_sg(drive, &cmd); |
855 | } | |
856 | ||
b788ee9c | 857 | return ide_issue_pc(drive, &cmd); |
e0458ccb | 858 | out_end: |
5b93629b | 859 | nsectors = blk_rq_sectors(rq); |
f63174e7 BZ |
860 | |
861 | if (nsectors == 0) | |
862 | nsectors = 1; | |
863 | ||
864 | ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9); | |
865 | ||
e0458ccb | 866 | return ide_stopped; |
1da177e4 LT |
867 | } |
868 | ||
5a3ea3b4 | 869 | /* |
1da177e4 LT |
870 | * Ioctl handling. |
871 | * | |
5a3ea3b4 BP |
872 | * Routines which queue packet commands take as a final argument a pointer to a |
873 | * request_sense struct. If execution of the command results in an error with a | |
874 | * CHECK CONDITION status, this structure will be filled with the results of the | |
875 | * subsequent request sense command. The pointer can also be NULL, in which case | |
876 | * no sense information is returned. | |
1da177e4 | 877 | */ |
e5e076a3 | 878 | static void msf_from_bcd(struct atapi_msf *msf) |
1da177e4 | 879 | { |
fc99856a AB |
880 | msf->minute = bcd2bin(msf->minute); |
881 | msf->second = bcd2bin(msf->second); | |
882 | msf->frame = bcd2bin(msf->frame); | |
1da177e4 LT |
883 | } |
884 | ||
f9afd18b | 885 | int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 | 886 | { |
1da177e4 LT |
887 | struct cdrom_info *info = drive->driver_data; |
888 | struct cdrom_device_info *cdi = &info->devinfo; | |
5f828546 | 889 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 890 | |
088b1b88 | 891 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 892 | |
5f828546 FT |
893 | memset(cmd, 0, BLK_MAX_CDB); |
894 | cmd[0] = GPCMD_TEST_UNIT_READY; | |
1da177e4 | 895 | |
cdf6000d | 896 | /* |
5a3ea3b4 BP |
897 | * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs |
898 | * instead of supporting the LOAD_UNLOAD opcode. | |
cdf6000d | 899 | */ |
5f828546 | 900 | cmd[7] = cdi->sanyo_slot % 3; |
1da177e4 | 901 | |
141d3b27 | 902 | return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET); |
1da177e4 LT |
903 | } |
904 | ||
1da177e4 LT |
905 | static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, |
906 | unsigned long *sectors_per_frame, | |
907 | struct request_sense *sense) | |
908 | { | |
909 | struct { | |
141d3b27 HH |
910 | __be32 lba; |
911 | __be32 blocklen; | |
1da177e4 LT |
912 | } capbuf; |
913 | ||
914 | int stat; | |
5f828546 FT |
915 | unsigned char cmd[BLK_MAX_CDB]; |
916 | unsigned len = sizeof(capbuf); | |
938bb03d | 917 | u32 blocklen; |
1da177e4 | 918 | |
088b1b88 | 919 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 920 | |
5f828546 FT |
921 | memset(cmd, 0, BLK_MAX_CDB); |
922 | cmd[0] = GPCMD_READ_CDVD_CAPACITY; | |
1da177e4 | 923 | |
5f828546 FT |
924 | stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, |
925 | REQ_QUIET); | |
e8e7b9eb JA |
926 | if (stat) |
927 | return stat; | |
928 | ||
929 | /* | |
930 | * Sanity check the given block size | |
931 | */ | |
938bb03d PT |
932 | blocklen = be32_to_cpu(capbuf.blocklen); |
933 | switch (blocklen) { | |
934 | case 512: | |
935 | case 1024: | |
936 | case 2048: | |
937 | case 4096: | |
e8e7b9eb JA |
938 | break; |
939 | default: | |
fc8323f7 BP |
940 | printk(KERN_ERR PFX "%s: weird block size %u\n", |
941 | drive->name, blocklen); | |
942 | printk(KERN_ERR PFX "%s: default to 2kb block size\n", | |
943 | drive->name); | |
938bb03d | 944 | blocklen = 2048; |
e8e7b9eb | 945 | break; |
1da177e4 LT |
946 | } |
947 | ||
e8e7b9eb | 948 | *capacity = 1 + be32_to_cpu(capbuf.lba); |
938bb03d | 949 | *sectors_per_frame = blocklen >> SECTOR_BITS; |
71b429ca | 950 | |
088b1b88 BP |
951 | ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu", |
952 | *capacity, *sectors_per_frame); | |
71b429ca | 953 | |
e8e7b9eb | 954 | return 0; |
1da177e4 LT |
955 | } |
956 | ||
957 | static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, | |
958 | int format, char *buf, int buflen, | |
959 | struct request_sense *sense) | |
960 | { | |
5f828546 | 961 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 962 | |
088b1b88 | 963 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 964 | |
5f828546 | 965 | memset(cmd, 0, BLK_MAX_CDB); |
1da177e4 | 966 | |
5f828546 FT |
967 | cmd[0] = GPCMD_READ_TOC_PMA_ATIP; |
968 | cmd[6] = trackno; | |
969 | cmd[7] = (buflen >> 8); | |
970 | cmd[8] = (buflen & 0xff); | |
971 | cmd[9] = (format << 6); | |
1da177e4 LT |
972 | |
973 | if (msf_flag) | |
5f828546 | 974 | cmd[1] = 2; |
1da177e4 | 975 | |
5f828546 | 976 | return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); |
1da177e4 LT |
977 | } |
978 | ||
1da177e4 | 979 | /* Try to read the entire TOC for the disk into our internal buffer. */ |
17802998 | 980 | int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 LT |
981 | { |
982 | int stat, ntracks, i; | |
983 | struct cdrom_info *info = drive->driver_data; | |
984 | struct cdrom_device_info *cdi = &info->devinfo; | |
985 | struct atapi_toc *toc = info->toc; | |
986 | struct { | |
987 | struct atapi_toc_header hdr; | |
988 | struct atapi_toc_entry ent; | |
989 | } ms_tmp; | |
990 | long last_written; | |
991 | unsigned long sectors_per_frame = SECTORS_PER_FRAME; | |
992 | ||
088b1b88 | 993 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 994 | |
1da177e4 | 995 | if (toc == NULL) { |
5a3ea3b4 | 996 | /* try to allocate space */ |
2a91f3e5 | 997 | toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); |
1da177e4 | 998 | if (toc == NULL) { |
fc8323f7 | 999 | printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n", |
83c8565d | 1000 | drive->name); |
1da177e4 LT |
1001 | return -ENOMEM; |
1002 | } | |
2a91f3e5 | 1003 | info->toc = toc; |
1da177e4 LT |
1004 | } |
1005 | ||
5a3ea3b4 BP |
1006 | /* |
1007 | * Check to see if the existing data is still valid. If it is, | |
1008 | * just return. | |
1009 | */ | |
1da177e4 LT |
1010 | (void) cdrom_check_status(drive, sense); |
1011 | ||
570f89ea | 1012 | if (drive->atapi_flags & IDE_AFLAG_TOC_VALID) |
1da177e4 LT |
1013 | return 0; |
1014 | ||
5a3ea3b4 | 1015 | /* try to get the total cdrom capacity and sector size */ |
1da177e4 LT |
1016 | stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame, |
1017 | sense); | |
1018 | if (stat) | |
1019 | toc->capacity = 0x1fffff; | |
1020 | ||
1021 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
5a3ea3b4 | 1022 | /* save a private copy of the TOC capacity for error handling */ |
dbe217af AC |
1023 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1024 | ||
1da177e4 LT |
1025 | blk_queue_hardsect_size(drive->queue, |
1026 | sectors_per_frame << SECTOR_BITS); | |
1027 | ||
5a3ea3b4 | 1028 | /* first read just the header, so we know how long the TOC is */ |
1da177e4 LT |
1029 | stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, |
1030 | sizeof(struct atapi_toc_header), sense); | |
2a91f3e5 JJ |
1031 | if (stat) |
1032 | return stat; | |
1da177e4 | 1033 | |
570f89ea | 1034 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1035 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1036 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1037 | } |
1da177e4 LT |
1038 | |
1039 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; | |
1040 | if (ntracks <= 0) | |
1041 | return -EIO; | |
1042 | if (ntracks > MAX_TRACKS) | |
1043 | ntracks = MAX_TRACKS; | |
1044 | ||
5a3ea3b4 | 1045 | /* now read the whole schmeer */ |
1da177e4 LT |
1046 | stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, |
1047 | (char *)&toc->hdr, | |
1048 | sizeof(struct atapi_toc_header) + | |
1049 | (ntracks + 1) * | |
1050 | sizeof(struct atapi_toc_entry), sense); | |
1051 | ||
1052 | if (stat && toc->hdr.first_track > 1) { | |
5a3ea3b4 BP |
1053 | /* |
1054 | * Cds with CDI tracks only don't have any TOC entries, despite | |
1055 | * of this the returned values are | |
1056 | * first_track == last_track = number of CDI tracks + 1, | |
1057 | * so that this case is indistinguishable from the same layout | |
1058 | * plus an additional audio track. If we get an error for the | |
1059 | * regular case, we assume a CDI without additional audio | |
1060 | * tracks. In this case the readable TOC is empty (CDI tracks | |
1061 | * are not included) and only holds the Leadout entry. | |
1062 | * | |
1063 | * Heiko Eißfeldt. | |
1064 | */ | |
1da177e4 LT |
1065 | ntracks = 0; |
1066 | stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, | |
1067 | (char *)&toc->hdr, | |
1068 | sizeof(struct atapi_toc_header) + | |
1069 | (ntracks + 1) * | |
1070 | sizeof(struct atapi_toc_entry), | |
1071 | sense); | |
cdf6000d | 1072 | if (stat) |
1da177e4 | 1073 | return stat; |
cdf6000d | 1074 | |
570f89ea | 1075 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1076 | toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT); |
1077 | toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT); | |
cdf6000d | 1078 | } else { |
1da177e4 LT |
1079 | toc->hdr.first_track = CDROM_LEADOUT; |
1080 | toc->hdr.last_track = CDROM_LEADOUT; | |
1081 | } | |
1082 | } | |
1083 | ||
1084 | if (stat) | |
1085 | return stat; | |
1086 | ||
7eb43fd2 | 1087 | toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); |
1da177e4 | 1088 | |
570f89ea | 1089 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1090 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1091 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1092 | } |
1da177e4 | 1093 | |
cdf6000d | 1094 | for (i = 0; i <= ntracks; i++) { |
570f89ea BP |
1095 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
1096 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) | |
fc99856a | 1097 | toc->ent[i].track = bcd2bin(toc->ent[i].track); |
1da177e4 LT |
1098 | msf_from_bcd(&toc->ent[i].addr.msf); |
1099 | } | |
9ce70fb2 PC |
1100 | toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, |
1101 | toc->ent[i].addr.msf.second, | |
1102 | toc->ent[i].addr.msf.frame); | |
1da177e4 LT |
1103 | } |
1104 | ||
1da177e4 | 1105 | if (toc->hdr.first_track != CDROM_LEADOUT) { |
5a3ea3b4 | 1106 | /* read the multisession information */ |
1da177e4 LT |
1107 | stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, |
1108 | sizeof(ms_tmp), sense); | |
2a91f3e5 JJ |
1109 | if (stat) |
1110 | return stat; | |
1da177e4 LT |
1111 | |
1112 | toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); | |
1113 | } else { | |
e5e076a3 BP |
1114 | ms_tmp.hdr.last_track = CDROM_LEADOUT; |
1115 | ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; | |
1da177e4 LT |
1116 | toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ |
1117 | } | |
1118 | ||
570f89ea | 1119 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
5a3ea3b4 | 1120 | /* re-read multisession information using MSF format */ |
1da177e4 LT |
1121 | stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, |
1122 | sizeof(ms_tmp), sense); | |
1123 | if (stat) | |
1124 | return stat; | |
1125 | ||
9ce70fb2 | 1126 | msf_from_bcd(&ms_tmp.ent.addr.msf); |
1da177e4 | 1127 | toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, |
9ce70fb2 | 1128 | ms_tmp.ent.addr.msf.second, |
1da177e4 LT |
1129 | ms_tmp.ent.addr.msf.frame); |
1130 | } | |
1da177e4 LT |
1131 | |
1132 | toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); | |
1133 | ||
5a3ea3b4 | 1134 | /* now try to get the total cdrom capacity */ |
1da177e4 LT |
1135 | stat = cdrom_get_last_written(cdi, &last_written); |
1136 | if (!stat && (last_written > toc->capacity)) { | |
1137 | toc->capacity = last_written; | |
1138 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
dbe217af | 1139 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1da177e4 LT |
1140 | } |
1141 | ||
1142 | /* Remember that we've read this stuff. */ | |
570f89ea | 1143 | drive->atapi_flags |= IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
1144 | |
1145 | return 0; | |
1146 | } | |
1147 | ||
17802998 | 1148 | int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) |
9235e68b EP |
1149 | { |
1150 | struct cdrom_info *info = drive->driver_data; | |
1151 | struct cdrom_device_info *cdi = &info->devinfo; | |
1152 | struct packet_command cgc; | |
455d80a9 | 1153 | int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; |
9235e68b | 1154 | |
088b1b88 | 1155 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1156 | |
570f89ea | 1157 | if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0) |
455d80a9 | 1158 | size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; |
9235e68b | 1159 | |
455d80a9 | 1160 | init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); |
5a3ea3b4 BP |
1161 | do { |
1162 | /* we seem to get stat=0x01,err=0x00 the first time (??) */ | |
9235e68b EP |
1163 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); |
1164 | if (!stat) | |
1165 | break; | |
1166 | } while (--attempts); | |
1167 | return stat; | |
1168 | } | |
1169 | ||
17802998 | 1170 | void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) |
9235e68b | 1171 | { |
4fe67178 | 1172 | struct cdrom_info *cd = drive->driver_data; |
481c8c64 BZ |
1173 | u16 curspeed, maxspeed; |
1174 | ||
088b1b88 | 1175 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1176 | |
570f89ea | 1177 | if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) { |
141d3b27 HH |
1178 | curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]); |
1179 | maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]); | |
9235e68b | 1180 | } else { |
141d3b27 HH |
1181 | curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]); |
1182 | maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]); | |
9235e68b | 1183 | } |
481c8c64 | 1184 | |
088b1b88 BP |
1185 | ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u", |
1186 | curspeed, maxspeed); | |
71b429ca | 1187 | |
2bc4cf2d BZ |
1188 | cd->current_speed = (curspeed + (176/2)) / 176; |
1189 | cd->max_speed = (maxspeed + (176/2)) / 176; | |
9235e68b EP |
1190 | } |
1191 | ||
20e7f7ef BZ |
1192 | #define IDE_CD_CAPABILITIES \ |
1193 | (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ | |
1194 | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ | |
1195 | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ | |
1196 | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ | |
1197 | CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) | |
1da177e4 | 1198 | |
1da177e4 LT |
1199 | static struct cdrom_device_ops ide_cdrom_dops = { |
1200 | .open = ide_cdrom_open_real, | |
1201 | .release = ide_cdrom_release_real, | |
1202 | .drive_status = ide_cdrom_drive_status, | |
1203 | .media_changed = ide_cdrom_check_media_change_real, | |
1204 | .tray_move = ide_cdrom_tray_move, | |
1205 | .lock_door = ide_cdrom_lock_door, | |
1206 | .select_speed = ide_cdrom_select_speed, | |
1207 | .get_last_session = ide_cdrom_get_last_session, | |
1208 | .get_mcn = ide_cdrom_get_mcn, | |
1209 | .reset = ide_cdrom_reset, | |
1210 | .audio_ioctl = ide_cdrom_audio_ioctl, | |
20e7f7ef | 1211 | .capability = IDE_CD_CAPABILITIES, |
1da177e4 LT |
1212 | .generic_packet = ide_cdrom_packet, |
1213 | }; | |
1214 | ||
9ce70fb2 | 1215 | static int ide_cdrom_register(ide_drive_t *drive, int nslots) |
1da177e4 LT |
1216 | { |
1217 | struct cdrom_info *info = drive->driver_data; | |
1218 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1219 | ||
088b1b88 | 1220 | ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots); |
fc8323f7 | 1221 | |
1da177e4 | 1222 | devinfo->ops = &ide_cdrom_dops; |
2bc4cf2d | 1223 | devinfo->speed = info->current_speed; |
1da177e4 | 1224 | devinfo->capacity = nslots; |
2a91f3e5 | 1225 | devinfo->handle = drive; |
1da177e4 | 1226 | strcpy(devinfo->name, drive->name); |
1da177e4 | 1227 | |
570f89ea | 1228 | if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT) |
3cbd814e BZ |
1229 | devinfo->mask |= CDC_SELECT_SPEED; |
1230 | ||
1da177e4 LT |
1231 | devinfo->disk = info->disk; |
1232 | return register_cdrom(devinfo); | |
1233 | } | |
1234 | ||
e5e076a3 | 1235 | static int ide_cdrom_probe_capabilities(ide_drive_t *drive) |
1da177e4 | 1236 | { |
4fe67178 BZ |
1237 | struct cdrom_info *cd = drive->driver_data; |
1238 | struct cdrom_device_info *cdi = &cd->devinfo; | |
455d80a9 BZ |
1239 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; |
1240 | mechtype_t mechtype; | |
1da177e4 LT |
1241 | int nslots = 1; |
1242 | ||
088b1b88 BP |
1243 | ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx", |
1244 | drive->media, drive->atapi_flags); | |
fc8323f7 | 1245 | |
3f1b86d8 BZ |
1246 | cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | |
1247 | CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | | |
1248 | CDC_MO_DRIVE | CDC_RAM); | |
1249 | ||
1da177e4 | 1250 | if (drive->media == ide_optical) { |
3f1b86d8 | 1251 | cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); |
fc8323f7 | 1252 | printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n", |
83c8565d | 1253 | drive->name); |
1da177e4 LT |
1254 | return nslots; |
1255 | } | |
1256 | ||
570f89ea BP |
1257 | if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) { |
1258 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; | |
3f1b86d8 | 1259 | cdi->mask &= ~CDC_PLAY_AUDIO; |
1da177e4 LT |
1260 | return nslots; |
1261 | } | |
1262 | ||
1263 | /* | |
5a3ea3b4 BP |
1264 | * We have to cheat a little here. the packet will eventually be queued |
1265 | * with ide_cdrom_packet(), which extracts the drive from cdi->handle. | |
1266 | * Since this device hasn't been registered with the Uniform layer yet, | |
1267 | * it can't do this. Same goes for cdi->ops. | |
1da177e4 | 1268 | */ |
2a91f3e5 | 1269 | cdi->handle = drive; |
1da177e4 LT |
1270 | cdi->ops = &ide_cdrom_dops; |
1271 | ||
455d80a9 | 1272 | if (ide_cdrom_get_capabilities(drive, buf)) |
1da177e4 LT |
1273 | return 0; |
1274 | ||
455d80a9 | 1275 | if ((buf[8 + 6] & 0x01) == 0) |
42619d35 | 1276 | drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; |
455d80a9 | 1277 | if (buf[8 + 6] & 0x08) |
570f89ea | 1278 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; |
455d80a9 | 1279 | if (buf[8 + 3] & 0x01) |
3f1b86d8 | 1280 | cdi->mask &= ~CDC_CD_R; |
455d80a9 | 1281 | if (buf[8 + 3] & 0x02) |
3f1b86d8 | 1282 | cdi->mask &= ~(CDC_CD_RW | CDC_RAM); |
455d80a9 | 1283 | if (buf[8 + 2] & 0x38) |
3f1b86d8 | 1284 | cdi->mask &= ~CDC_DVD; |
455d80a9 | 1285 | if (buf[8 + 3] & 0x20) |
3f1b86d8 | 1286 | cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); |
455d80a9 | 1287 | if (buf[8 + 3] & 0x10) |
3f1b86d8 | 1288 | cdi->mask &= ~CDC_DVD_R; |
570f89ea | 1289 | if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK)) |
3f1b86d8 | 1290 | cdi->mask &= ~CDC_PLAY_AUDIO; |
455d80a9 BZ |
1291 | |
1292 | mechtype = buf[8 + 6] >> 5; | |
f20f2586 BP |
1293 | if (mechtype == mechtype_caddy || |
1294 | mechtype == mechtype_popup || | |
1295 | (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE)) | |
3f1b86d8 | 1296 | cdi->mask |= CDC_CLOSE_TRAY; |
1da177e4 | 1297 | |
1da177e4 | 1298 | if (cdi->sanyo_slot > 0) { |
3f1b86d8 | 1299 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 | 1300 | nslots = 3; |
cdf6000d BZ |
1301 | } else if (mechtype == mechtype_individual_changer || |
1302 | mechtype == mechtype_cartridge_changer) { | |
2609d06d BZ |
1303 | nslots = cdrom_number_of_slots(cdi); |
1304 | if (nslots > 1) | |
3f1b86d8 | 1305 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 LT |
1306 | } |
1307 | ||
455d80a9 | 1308 | ide_cdrom_update_speed(drive, buf); |
4fe67178 | 1309 | |
fc8323f7 | 1310 | printk(KERN_INFO PFX "%s: ATAPI", drive->name); |
4fe67178 BZ |
1311 | |
1312 | /* don't print speed if the drive reported 0 */ | |
2bc4cf2d BZ |
1313 | if (cd->max_speed) |
1314 | printk(KERN_CONT " %dX", cd->max_speed); | |
4fe67178 | 1315 | |
3f1b86d8 | 1316 | printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); |
1da177e4 | 1317 | |
3f1b86d8 BZ |
1318 | if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) |
1319 | printk(KERN_CONT " DVD%s%s", | |
1320 | (cdi->mask & CDC_DVD_R) ? "" : "-R", | |
419a5b67 | 1321 | (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM"); |
1da177e4 | 1322 | |
3f1b86d8 BZ |
1323 | if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) |
1324 | printk(KERN_CONT " CD%s%s", | |
1325 | (cdi->mask & CDC_CD_R) ? "" : "-R", | |
1326 | (cdi->mask & CDC_CD_RW) ? "" : "/RW"); | |
1da177e4 | 1327 | |
3f1b86d8 BZ |
1328 | if ((cdi->mask & CDC_SELECT_DISC) == 0) |
1329 | printk(KERN_CONT " changer w/%d slots", nslots); | |
1330 | else | |
1331 | printk(KERN_CONT " drive"); | |
1da177e4 | 1332 | |
fc8323f7 BP |
1333 | printk(KERN_CONT ", %dkB Cache\n", |
1334 | be16_to_cpup((__be16 *)&buf[8 + 12])); | |
1da177e4 LT |
1335 | |
1336 | return nslots; | |
1337 | } | |
1338 | ||
5a3ea3b4 | 1339 | /* standard prep_rq_fn that builds 10 byte cmds */ |
165125e1 | 1340 | static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) |
1da177e4 LT |
1341 | { |
1342 | int hard_sect = queue_hardsect_size(q); | |
5b93629b TH |
1343 | long block = (long)blk_rq_pos(rq) / (hard_sect >> 9); |
1344 | unsigned long blocks = blk_rq_sectors(rq) / (hard_sect >> 9); | |
1da177e4 | 1345 | |
d34c87e4 | 1346 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
1347 | |
1348 | if (rq_data_dir(rq) == READ) | |
1349 | rq->cmd[0] = GPCMD_READ_10; | |
1350 | else | |
1351 | rq->cmd[0] = GPCMD_WRITE_10; | |
1352 | ||
1353 | /* | |
1354 | * fill in lba | |
1355 | */ | |
1356 | rq->cmd[2] = (block >> 24) & 0xff; | |
1357 | rq->cmd[3] = (block >> 16) & 0xff; | |
1358 | rq->cmd[4] = (block >> 8) & 0xff; | |
1359 | rq->cmd[5] = block & 0xff; | |
1360 | ||
1361 | /* | |
1362 | * and transfer length | |
1363 | */ | |
1364 | rq->cmd[7] = (blocks >> 8) & 0xff; | |
1365 | rq->cmd[8] = blocks & 0xff; | |
1366 | rq->cmd_len = 10; | |
1367 | return BLKPREP_OK; | |
1368 | } | |
1369 | ||
1370 | /* | |
1371 | * Most of the SCSI commands are supported directly by ATAPI devices. | |
1372 | * This transform handles the few exceptions. | |
1373 | */ | |
1374 | static int ide_cdrom_prep_pc(struct request *rq) | |
1375 | { | |
1376 | u8 *c = rq->cmd; | |
1377 | ||
5a3ea3b4 | 1378 | /* transform 6-byte read/write commands to the 10-byte version */ |
1da177e4 LT |
1379 | if (c[0] == READ_6 || c[0] == WRITE_6) { |
1380 | c[8] = c[4]; | |
1381 | c[5] = c[3]; | |
1382 | c[4] = c[2]; | |
1383 | c[3] = c[1] & 0x1f; | |
1384 | c[2] = 0; | |
1385 | c[1] &= 0xe0; | |
1386 | c[0] += (READ_10 - READ_6); | |
1387 | rq->cmd_len = 10; | |
1388 | return BLKPREP_OK; | |
1389 | } | |
1390 | ||
1391 | /* | |
1392 | * it's silly to pretend we understand 6-byte sense commands, just | |
1393 | * reject with ILLEGAL_REQUEST and the caller should take the | |
1394 | * appropriate action | |
1395 | */ | |
1396 | if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { | |
1397 | rq->errors = ILLEGAL_REQUEST; | |
1398 | return BLKPREP_KILL; | |
1399 | } | |
9ce70fb2 | 1400 | |
1da177e4 LT |
1401 | return BLKPREP_OK; |
1402 | } | |
1403 | ||
165125e1 | 1404 | static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) |
1da177e4 | 1405 | { |
4aff5e23 | 1406 | if (blk_fs_request(rq)) |
1da177e4 | 1407 | return ide_cdrom_prep_fs(q, rq); |
4aff5e23 | 1408 | else if (blk_pc_request(rq)) |
1da177e4 LT |
1409 | return ide_cdrom_prep_pc(rq); |
1410 | ||
1411 | return 0; | |
1412 | } | |
1413 | ||
e59724c7 BZ |
1414 | struct cd_list_entry { |
1415 | const char *id_model; | |
1416 | const char *id_firmware; | |
1417 | unsigned int cd_flags; | |
1418 | }; | |
1419 | ||
5e657a9e BP |
1420 | #ifdef CONFIG_IDE_PROC_FS |
1421 | static sector_t ide_cdrom_capacity(ide_drive_t *drive) | |
1422 | { | |
1423 | unsigned long capacity, sectors_per_frame; | |
1424 | ||
1425 | if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL)) | |
1426 | return 0; | |
1427 | ||
1428 | return capacity * sectors_per_frame; | |
1429 | } | |
1430 | ||
e5e076a3 BP |
1431 | static int proc_idecd_read_capacity(char *page, char **start, off_t off, |
1432 | int count, int *eof, void *data) | |
5e657a9e BP |
1433 | { |
1434 | ide_drive_t *drive = data; | |
1435 | int len; | |
1436 | ||
1437 | len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive)); | |
1438 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); | |
1439 | } | |
1440 | ||
1441 | static ide_proc_entry_t idecd_proc[] = { | |
1442 | { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL }, | |
1443 | { NULL, 0, NULL, NULL } | |
1444 | }; | |
1445 | ||
79cb3803 BZ |
1446 | static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive) |
1447 | { | |
1448 | return idecd_proc; | |
1449 | } | |
1450 | ||
1451 | static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive) | |
1452 | { | |
519d6808 | 1453 | return NULL; |
79cb3803 | 1454 | } |
5e657a9e BP |
1455 | #endif |
1456 | ||
e59724c7 | 1457 | static const struct cd_list_entry ide_cd_quirks_list[] = { |
e59724c7 | 1458 | /* SCR-3231 doesn't support the SET_CD_SPEED command. */ |
570f89ea | 1459 | { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT }, |
e59724c7 | 1460 | /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ |
570f89ea BP |
1461 | { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD | |
1462 | IDE_AFLAG_PRE_ATAPI12, }, | |
e59724c7 | 1463 | /* Vertos 300, some versions of this drive like to talk BCD. */ |
570f89ea | 1464 | { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, }, |
e59724c7 | 1465 | /* Vertos 600 ESD. */ |
570f89ea | 1466 | { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, }, |
e59724c7 BZ |
1467 | /* |
1468 | * Sanyo 3 CD changer uses a non-standard command for CD changing | |
1469 | * (by default standard ATAPI support for CD changers is used). | |
1470 | */ | |
570f89ea BP |
1471 | { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD }, |
1472 | { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD }, | |
1473 | { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD }, | |
e59724c7 | 1474 | /* Stingray 8X CD-ROM. */ |
570f89ea | 1475 | { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 }, |
e59724c7 BZ |
1476 | /* |
1477 | * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length | |
1478 | * mode sense page capabilities size, but older drives break. | |
1479 | */ | |
570f89ea BP |
1480 | { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, |
1481 | { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, | |
e59724c7 | 1482 | /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ |
570f89ea | 1483 | { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS }, |
e59724c7 BZ |
1484 | /* |
1485 | * Some drives used by Apple don't advertise audio play | |
1486 | * but they do support reading TOC & audio datas. | |
1487 | */ | |
570f89ea BP |
1488 | { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
1489 | { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1490 | { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1491 | { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1492 | { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
f3e85ee7 | 1493 | { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
f20f2586 | 1494 | { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
64c2eae2 | 1495 | { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
e59724c7 BZ |
1496 | { NULL, NULL, 0 } |
1497 | }; | |
1498 | ||
4dde4492 | 1499 | static unsigned int ide_cd_flags(u16 *id) |
e59724c7 BZ |
1500 | { |
1501 | const struct cd_list_entry *cle = ide_cd_quirks_list; | |
1502 | ||
1503 | while (cle->id_model) { | |
4dde4492 | 1504 | if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 && |
e59724c7 | 1505 | (cle->id_firmware == NULL || |
4dde4492 | 1506 | strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware))) |
e59724c7 BZ |
1507 | return cle->cd_flags; |
1508 | cle++; | |
1509 | } | |
1510 | ||
1511 | return 0; | |
1512 | } | |
1513 | ||
e5e076a3 | 1514 | static int ide_cdrom_setup(ide_drive_t *drive) |
1da177e4 | 1515 | { |
4fe67178 BZ |
1516 | struct cdrom_info *cd = drive->driver_data; |
1517 | struct cdrom_device_info *cdi = &cd->devinfo; | |
e698ea83 | 1518 | struct request_queue *q = drive->queue; |
4dde4492 BZ |
1519 | u16 *id = drive->id; |
1520 | char *fw_rev = (char *)&id[ATA_ID_FW_REV]; | |
1da177e4 LT |
1521 | int nslots; |
1522 | ||
088b1b88 | 1523 | ide_debug_log(IDE_DBG_PROBE, "enter"); |
fc8323f7 | 1524 | |
e698ea83 BZ |
1525 | blk_queue_prep_rq(q, ide_cdrom_prep_fn); |
1526 | blk_queue_dma_alignment(q, 31); | |
1527 | blk_queue_update_dma_pad(q, 15); | |
1528 | ||
1529 | q->unplug_delay = max((1 * HZ) / 1000, 1); | |
1da177e4 | 1530 | |
fe11edfa BZ |
1531 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
1532 | drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id); | |
1da177e4 | 1533 | |
570f89ea | 1534 | if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) && |
4dde4492 | 1535 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1536 | drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD | |
1537 | IDE_AFLAG_TOCADDR_AS_BCD); | |
1538 | else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) && | |
4dde4492 | 1539 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1540 | drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD; |
1541 | else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD) | |
5a3ea3b4 BP |
1542 | /* 3 => use CD in slot 0 */ |
1543 | cdi->sanyo_slot = 3; | |
1da177e4 | 1544 | |
9ce70fb2 | 1545 | nslots = ide_cdrom_probe_capabilities(drive); |
1da177e4 | 1546 | |
e698ea83 | 1547 | blk_queue_hardsect_size(q, CD_FRAMESIZE); |
1da177e4 | 1548 | |
1da177e4 | 1549 | if (ide_cdrom_register(drive, nslots)) { |
fc8323f7 | 1550 | printk(KERN_ERR PFX "%s: %s failed to register device with the" |
83c8565d | 1551 | " cdrom driver.\n", drive->name, __func__); |
4fe67178 | 1552 | cd->devinfo.handle = NULL; |
1da177e4 LT |
1553 | return 1; |
1554 | } | |
1e874f44 BZ |
1555 | |
1556 | ide_proc_register_driver(drive, cd->driver); | |
1da177e4 LT |
1557 | return 0; |
1558 | } | |
1559 | ||
4031bbe4 | 1560 | static void ide_cd_remove(ide_drive_t *drive) |
1da177e4 LT |
1561 | { |
1562 | struct cdrom_info *info = drive->driver_data; | |
1563 | ||
088b1b88 | 1564 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1565 | |
7662d046 | 1566 | ide_proc_unregister_driver(drive, info->driver); |
8fed4368 | 1567 | device_del(&info->dev); |
1da177e4 LT |
1568 | del_gendisk(info->disk); |
1569 | ||
8fed4368 BZ |
1570 | mutex_lock(&idecd_ref_mutex); |
1571 | put_device(&info->dev); | |
1572 | mutex_unlock(&idecd_ref_mutex); | |
1da177e4 LT |
1573 | } |
1574 | ||
8fed4368 | 1575 | static void ide_cd_release(struct device *dev) |
1da177e4 | 1576 | { |
8fed4368 | 1577 | struct cdrom_info *info = to_ide_drv(dev, cdrom_info); |
1da177e4 LT |
1578 | struct cdrom_device_info *devinfo = &info->devinfo; |
1579 | ide_drive_t *drive = info->drive; | |
1580 | struct gendisk *g = info->disk; | |
1581 | ||
088b1b88 | 1582 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1583 | |
6044ec88 | 1584 | kfree(info->toc); |
0a0c4114 AM |
1585 | if (devinfo->handle == drive) |
1586 | unregister_cdrom(devinfo); | |
1da177e4 LT |
1587 | drive->driver_data = NULL; |
1588 | blk_queue_prep_rq(drive->queue, NULL); | |
1589 | g->private_data = NULL; | |
1590 | put_disk(g); | |
1591 | kfree(info); | |
1592 | } | |
1593 | ||
4031bbe4 | 1594 | static int ide_cd_probe(ide_drive_t *); |
1da177e4 | 1595 | |
7f3c868b | 1596 | static struct ide_driver ide_cdrom_driver = { |
8604affd | 1597 | .gen_driver = { |
4ef3b8f4 | 1598 | .owner = THIS_MODULE, |
8604affd BZ |
1599 | .name = "ide-cdrom", |
1600 | .bus = &ide_bus_type, | |
8604affd | 1601 | }, |
4031bbe4 RK |
1602 | .probe = ide_cd_probe, |
1603 | .remove = ide_cd_remove, | |
1da177e4 | 1604 | .version = IDECD_VERSION, |
99384aea | 1605 | .do_request = ide_cd_do_request, |
7662d046 | 1606 | #ifdef CONFIG_IDE_PROC_FS |
79cb3803 BZ |
1607 | .proc_entries = ide_cd_proc_entries, |
1608 | .proc_devsets = ide_cd_proc_devsets, | |
7662d046 | 1609 | #endif |
1da177e4 LT |
1610 | }; |
1611 | ||
488ca606 | 1612 | static int idecd_open(struct block_device *bdev, fmode_t mode) |
1da177e4 | 1613 | { |
488ca606 | 1614 | struct cdrom_info *info = ide_cd_get(bdev->bd_disk); |
1da177e4 LT |
1615 | int rc = -ENOMEM; |
1616 | ||
9ce70fb2 | 1617 | if (!info) |
1da177e4 LT |
1618 | return -ENXIO; |
1619 | ||
488ca606 | 1620 | rc = cdrom_open(&info->devinfo, bdev, mode); |
1da177e4 LT |
1621 | |
1622 | if (rc < 0) | |
1623 | ide_cd_put(info); | |
1624 | ||
1625 | return rc; | |
1626 | } | |
1627 | ||
488ca606 | 1628 | static int idecd_release(struct gendisk *disk, fmode_t mode) |
1da177e4 | 1629 | { |
5aeddf90 | 1630 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1631 | |
488ca606 | 1632 | cdrom_release(&info->devinfo, mode); |
1da177e4 LT |
1633 | |
1634 | ide_cd_put(info); | |
1635 | ||
1636 | return 0; | |
1637 | } | |
1638 | ||
6a2900b6 CH |
1639 | static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
1640 | { | |
1641 | struct packet_command cgc; | |
1642 | char buffer[16]; | |
1643 | int stat; | |
1644 | char spindown; | |
1645 | ||
1646 | if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) | |
1647 | return -EFAULT; | |
1648 | ||
1649 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1650 | ||
1651 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1652 | if (stat) | |
1653 | return stat; | |
1654 | ||
1655 | buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); | |
1656 | return cdrom_mode_select(cdi, &cgc); | |
1657 | } | |
1658 | ||
1659 | static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) | |
1660 | { | |
1661 | struct packet_command cgc; | |
1662 | char buffer[16]; | |
1663 | int stat; | |
9ce70fb2 | 1664 | char spindown; |
6a2900b6 CH |
1665 | |
1666 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1667 | ||
1668 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1669 | if (stat) | |
1670 | return stat; | |
1671 | ||
1672 | spindown = buffer[11] & 0x0f; | |
9ce70fb2 | 1673 | if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) |
6a2900b6 CH |
1674 | return -EFAULT; |
1675 | return 0; | |
1676 | } | |
1677 | ||
488ca606 | 1678 | static int idecd_ioctl(struct block_device *bdev, fmode_t mode, |
1da177e4 LT |
1679 | unsigned int cmd, unsigned long arg) |
1680 | { | |
5aeddf90 | 1681 | struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info); |
1da177e4 LT |
1682 | int err; |
1683 | ||
6a2900b6 | 1684 | switch (cmd) { |
9ce70fb2 | 1685 | case CDROMSETSPINDOWN: |
6a2900b6 | 1686 | return idecd_set_spindown(&info->devinfo, arg); |
9ce70fb2 | 1687 | case CDROMGETSPINDOWN: |
6a2900b6 CH |
1688 | return idecd_get_spindown(&info->devinfo, arg); |
1689 | default: | |
1690 | break; | |
9ce70fb2 | 1691 | } |
6a2900b6 | 1692 | |
1bddd9e6 | 1693 | err = generic_ide_ioctl(info->drive, bdev, cmd, arg); |
1da177e4 | 1694 | if (err == -EINVAL) |
488ca606 | 1695 | err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg); |
1da177e4 LT |
1696 | |
1697 | return err; | |
1698 | } | |
1699 | ||
1700 | static int idecd_media_changed(struct gendisk *disk) | |
1701 | { | |
5aeddf90 | 1702 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 LT |
1703 | return cdrom_media_changed(&info->devinfo); |
1704 | } | |
1705 | ||
1706 | static int idecd_revalidate_disk(struct gendisk *disk) | |
1707 | { | |
5aeddf90 | 1708 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1709 | struct request_sense sense; |
139c829d BZ |
1710 | |
1711 | ide_cd_read_toc(info->drive, &sense); | |
1712 | ||
1da177e4 LT |
1713 | return 0; |
1714 | } | |
1715 | ||
1716 | static struct block_device_operations idecd_ops = { | |
9ce70fb2 | 1717 | .owner = THIS_MODULE, |
488ca606 AV |
1718 | .open = idecd_open, |
1719 | .release = idecd_release, | |
1720 | .locked_ioctl = idecd_ioctl, | |
9ce70fb2 PC |
1721 | .media_changed = idecd_media_changed, |
1722 | .revalidate_disk = idecd_revalidate_disk | |
1da177e4 LT |
1723 | }; |
1724 | ||
5a3ea3b4 | 1725 | /* module options */ |
35d9b17f BP |
1726 | static unsigned long debug_mask; |
1727 | module_param(debug_mask, ulong, 0644); | |
1728 | ||
1da177e4 LT |
1729 | MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); |
1730 | ||
4031bbe4 | 1731 | static int ide_cd_probe(ide_drive_t *drive) |
1da177e4 LT |
1732 | { |
1733 | struct cdrom_info *info; | |
1734 | struct gendisk *g; | |
1735 | struct request_sense sense; | |
1736 | ||
088b1b88 BP |
1737 | ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x", |
1738 | drive->driver_req, drive->media); | |
fc8323f7 | 1739 | |
1da177e4 LT |
1740 | if (!strstr("ide-cdrom", drive->driver_req)) |
1741 | goto failed; | |
2a924662 | 1742 | |
1da177e4 LT |
1743 | if (drive->media != ide_cdrom && drive->media != ide_optical) |
1744 | goto failed; | |
2a924662 | 1745 | |
35d9b17f | 1746 | drive->debug_mask = debug_mask; |
d6251d44 | 1747 | drive->irq_handler = cdrom_newpc_intr; |
35d9b17f | 1748 | |
f5e3c2fa | 1749 | info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); |
1da177e4 | 1750 | if (info == NULL) { |
fc8323f7 | 1751 | printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n", |
83c8565d | 1752 | drive->name); |
1da177e4 LT |
1753 | goto failed; |
1754 | } | |
1755 | ||
1756 | g = alloc_disk(1 << PARTN_BITS); | |
1757 | if (!g) | |
1758 | goto out_free_cd; | |
1759 | ||
1760 | ide_init_disk(g, drive); | |
1761 | ||
8fed4368 BZ |
1762 | info->dev.parent = &drive->gendev; |
1763 | info->dev.release = ide_cd_release; | |
1764 | dev_set_name(&info->dev, dev_name(&drive->gendev)); | |
1765 | ||
1766 | if (device_register(&info->dev)) | |
1767 | goto out_free_disk; | |
1da177e4 LT |
1768 | |
1769 | info->drive = drive; | |
1770 | info->driver = &ide_cdrom_driver; | |
1771 | info->disk = g; | |
1772 | ||
1773 | g->private_data = &info->driver; | |
1774 | ||
1775 | drive->driver_data = info; | |
1776 | ||
1da177e4 | 1777 | g->minors = 1; |
1da177e4 LT |
1778 | g->driverfs_dev = &drive->gendev; |
1779 | g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; | |
1780 | if (ide_cdrom_setup(drive)) { | |
8fed4368 | 1781 | put_device(&info->dev); |
1da177e4 LT |
1782 | goto failed; |
1783 | } | |
1da177e4 | 1784 | |
139c829d | 1785 | ide_cd_read_toc(drive, &sense); |
1da177e4 LT |
1786 | g->fops = &idecd_ops; |
1787 | g->flags |= GENHD_FL_REMOVABLE; | |
1788 | add_disk(g); | |
1789 | return 0; | |
1790 | ||
8fed4368 BZ |
1791 | out_free_disk: |
1792 | put_disk(g); | |
1da177e4 LT |
1793 | out_free_cd: |
1794 | kfree(info); | |
1795 | failed: | |
8604affd | 1796 | return -ENODEV; |
1da177e4 LT |
1797 | } |
1798 | ||
1799 | static void __exit ide_cdrom_exit(void) | |
1800 | { | |
8604affd | 1801 | driver_unregister(&ide_cdrom_driver.gen_driver); |
1da177e4 | 1802 | } |
17514e8a BZ |
1803 | |
1804 | static int __init ide_cdrom_init(void) | |
1da177e4 | 1805 | { |
fc8323f7 | 1806 | printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n"); |
8604affd | 1807 | return driver_register(&ide_cdrom_driver.gen_driver); |
1da177e4 LT |
1808 | } |
1809 | ||
263756ec | 1810 | MODULE_ALIAS("ide:*m-cdrom*"); |
972560fb | 1811 | MODULE_ALIAS("ide-cd"); |
1da177e4 LT |
1812 | module_init(ide_cdrom_init); |
1813 | module_exit(ide_cdrom_exit); | |
1814 | MODULE_LICENSE("GPL"); |