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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> | |
7 | * Copyright (C) 2005, 2007 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 | ||
1da177e4 LT |
209 | static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, |
210 | struct request *failed_command) | |
211 | { | |
212 | struct cdrom_info *info = drive->driver_data; | |
3f2154d7 | 213 | struct request *rq = &drive->request_sense_rq; |
1da177e4 | 214 | |
088b1b88 | 215 | ide_debug_log(IDE_DBG_SENSE, "enter"); |
fc8323f7 | 216 | |
1da177e4 LT |
217 | if (sense == NULL) |
218 | sense = &info->sense_data; | |
219 | ||
220 | /* stuff the sense request in front of our current request */ | |
ed820f19 FT |
221 | blk_rq_init(NULL, rq); |
222 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
223 | rq->rq_disk = info->disk; | |
1da177e4 LT |
224 | |
225 | rq->data = sense; | |
226 | rq->cmd[0] = GPCMD_REQUEST_SENSE; | |
e5e076a3 BP |
227 | rq->cmd[4] = 18; |
228 | rq->data_len = 18; | |
1da177e4 | 229 | |
4aff5e23 | 230 | rq->cmd_type = REQ_TYPE_SENSE; |
e8a96aa7 | 231 | rq->cmd_flags |= REQ_PREEMPT; |
1da177e4 LT |
232 | |
233 | /* NOTE! Save the failed command in "rq->buffer" */ | |
234 | rq->buffer = (void *) failed_command; | |
235 | ||
fc8323f7 | 236 | if (failed_command) |
088b1b88 BP |
237 | ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x", |
238 | failed_command->cmd[0]); | |
fc8323f7 | 239 | |
18660823 BZ |
240 | drive->hwif->rq = NULL; |
241 | ||
242 | elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0); | |
1da177e4 LT |
243 | } |
244 | ||
299c4852 BZ |
245 | static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq) |
246 | { | |
247 | /* | |
248 | * For REQ_TYPE_SENSE, "rq->buffer" points to the original | |
249 | * failed request | |
250 | */ | |
251 | struct request *failed = (struct request *)rq->buffer; | |
252 | struct cdrom_info *info = drive->driver_data; | |
253 | void *sense = &info->sense_data; | |
254 | ||
255 | if (failed) { | |
256 | if (failed->sense) { | |
257 | sense = failed->sense; | |
258 | failed->sense_len = rq->sense_len; | |
259 | } | |
260 | cdrom_analyze_sense_data(drive, failed, sense); | |
261 | ||
262 | if (ide_end_rq(drive, failed, -EIO, blk_rq_bytes(failed))) | |
263 | BUG(); | |
264 | } else | |
265 | cdrom_analyze_sense_data(drive, NULL, sense); | |
266 | } | |
267 | ||
9ce70fb2 | 268 | static void cdrom_end_request(ide_drive_t *drive, int uptodate) |
1da177e4 | 269 | { |
b65fac32 | 270 | struct request *rq = drive->hwif->rq; |
1da177e4 LT |
271 | int nsectors = rq->hard_cur_sectors; |
272 | ||
088b1b88 BP |
273 | ide_debug_log(IDE_DBG_FUNC, "cmd: 0x%x, uptodate: 0x%x, nsectors: %d", |
274 | rq->cmd[0], uptodate, nsectors); | |
fc8323f7 | 275 | |
299c4852 BZ |
276 | if (blk_sense_request(rq) && uptodate) |
277 | ide_cd_complete_failed_rq(drive, rq); | |
1da177e4 LT |
278 | |
279 | if (!rq->current_nr_sectors && blk_fs_request(rq)) | |
280 | uptodate = 1; | |
281 | /* make sure it's fully ended */ | |
282 | if (blk_pc_request(rq)) | |
283 | nsectors = (rq->data_len + 511) >> 9; | |
284 | if (!nsectors) | |
285 | nsectors = 1; | |
286 | ||
088b1b88 BP |
287 | ide_debug_log(IDE_DBG_FUNC, "uptodate: 0x%x, nsectors: %d", |
288 | uptodate, nsectors); | |
fc8323f7 | 289 | |
89f78b32 BZ |
290 | if (blk_fs_request(rq) == 0 && uptodate <= 0 && rq->errors == 0) |
291 | rq->errors = -EIO; | |
292 | ||
130e8867 | 293 | ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9); |
1da177e4 LT |
294 | } |
295 | ||
5a3ea3b4 BP |
296 | /* |
297 | * Returns: | |
298 | * 0: if the request should be continued. | |
8a116974 BZ |
299 | * 1: if the request will be going through error recovery. |
300 | * 2: if the request should be ended. | |
5a3ea3b4 | 301 | */ |
1da177e4 LT |
302 | static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) |
303 | { | |
b73c7ee2 | 304 | ide_hwif_t *hwif = drive->hwif; |
b65fac32 | 305 | struct request *rq = hwif->rq; |
1da177e4 | 306 | int stat, err, sense_key; |
9ce70fb2 | 307 | |
5a3ea3b4 | 308 | /* check for errors */ |
374e042c | 309 | stat = hwif->tp_ops->read_status(hwif); |
c47137a9 | 310 | |
1da177e4 LT |
311 | if (stat_ret) |
312 | *stat_ret = stat; | |
313 | ||
314 | if (OK_STAT(stat, good_stat, BAD_R_STAT)) | |
315 | return 0; | |
316 | ||
5a3ea3b4 | 317 | /* get the IDE error register */ |
64a57fe4 | 318 | err = ide_read_error(drive); |
1da177e4 LT |
319 | sense_key = err >> 4; |
320 | ||
088b1b88 BP |
321 | ide_debug_log(IDE_DBG_RQ, "stat: 0x%x, good_stat: 0x%x, cmd[0]: 0x%x, " |
322 | "rq->cmd_type: 0x%x, err: 0x%x", | |
323 | stat, good_stat, rq->cmd[0], rq->cmd_type, | |
324 | err); | |
fc8323f7 | 325 | |
4aff5e23 | 326 | if (blk_sense_request(rq)) { |
5a3ea3b4 BP |
327 | /* |
328 | * We got an error trying to get sense info from the drive | |
329 | * (probably while trying to recover from a former error). | |
330 | * Just give up. | |
331 | */ | |
4aff5e23 | 332 | rq->cmd_flags |= REQ_FAILED; |
8a116974 | 333 | return 2; |
8770c018 | 334 | } else if (blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) { |
1da177e4 | 335 | /* All other functions, except for READ. */ |
1da177e4 LT |
336 | |
337 | /* | |
338 | * if we have an error, pass back CHECK_CONDITION as the | |
339 | * scsi status byte | |
340 | */ | |
b7156731 | 341 | if (blk_pc_request(rq) && !rq->errors) |
1da177e4 LT |
342 | rq->errors = SAM_STAT_CHECK_CONDITION; |
343 | ||
5a3ea3b4 | 344 | /* check for tray open */ |
1da177e4 | 345 | if (sense_key == NOT_READY) { |
9ce70fb2 | 346 | cdrom_saw_media_change(drive); |
1da177e4 | 347 | } else if (sense_key == UNIT_ATTENTION) { |
5a3ea3b4 | 348 | /* check for media change */ |
9ce70fb2 | 349 | cdrom_saw_media_change(drive); |
1da177e4 | 350 | return 0; |
9ce70fb2 PC |
351 | } else if (sense_key == ILLEGAL_REQUEST && |
352 | rq->cmd[0] == GPCMD_START_STOP_UNIT) { | |
353 | /* | |
354 | * Don't print error message for this condition-- | |
355 | * SFF8090i indicates that 5/24/00 is the correct | |
356 | * response to a request to close the tray if the | |
357 | * drive doesn't have that capability. | |
358 | * cdrom_log_sense() knows this! | |
359 | */ | |
4aff5e23 | 360 | } else if (!(rq->cmd_flags & REQ_QUIET)) { |
5a3ea3b4 | 361 | /* otherwise, print an error */ |
1da177e4 LT |
362 | ide_dump_status(drive, "packet command error", stat); |
363 | } | |
9ce70fb2 | 364 | |
4aff5e23 | 365 | rq->cmd_flags |= REQ_FAILED; |
1da177e4 LT |
366 | |
367 | /* | |
368 | * instead of playing games with moving completions around, | |
369 | * remove failed request completely and end it when the | |
370 | * request sense has completed | |
371 | */ | |
bbb89e3d | 372 | goto end_request; |
1da177e4 LT |
373 | |
374 | } else if (blk_fs_request(rq)) { | |
375 | int do_end_request = 0; | |
376 | ||
5a3ea3b4 | 377 | /* handle errors from READ and WRITE requests */ |
1da177e4 LT |
378 | |
379 | if (blk_noretry_request(rq)) | |
380 | do_end_request = 1; | |
381 | ||
382 | if (sense_key == NOT_READY) { | |
5a3ea3b4 | 383 | /* tray open */ |
1da177e4 | 384 | if (rq_data_dir(rq) == READ) { |
9ce70fb2 | 385 | cdrom_saw_media_change(drive); |
1da177e4 | 386 | |
5a3ea3b4 | 387 | /* fail the request */ |
fc8323f7 BP |
388 | printk(KERN_ERR PFX "%s: tray open\n", |
389 | drive->name); | |
1da177e4 LT |
390 | do_end_request = 1; |
391 | } else { | |
392 | struct cdrom_info *info = drive->driver_data; | |
393 | ||
5a3ea3b4 BP |
394 | /* |
395 | * Allow the drive 5 seconds to recover, some | |
1da177e4 | 396 | * devices will return this error while flushing |
5a3ea3b4 BP |
397 | * data from cache. |
398 | */ | |
1da177e4 | 399 | if (!rq->errors) |
83c8565d BP |
400 | info->write_timeout = jiffies + |
401 | ATAPI_WAIT_WRITE_BUSY; | |
1da177e4 LT |
402 | rq->errors = 1; |
403 | if (time_after(jiffies, info->write_timeout)) | |
404 | do_end_request = 1; | |
405 | else { | |
6ea52226 | 406 | struct request_queue *q = drive->queue; |
1da177e4 LT |
407 | unsigned long flags; |
408 | ||
409 | /* | |
5a3ea3b4 BP |
410 | * take a breather relying on the unplug |
411 | * timer to kick us again | |
1da177e4 | 412 | */ |
6ea52226 BZ |
413 | spin_lock_irqsave(q->queue_lock, flags); |
414 | blk_plug_device(q); | |
415 | spin_unlock_irqrestore(q->queue_lock, flags); | |
416 | ||
1da177e4 LT |
417 | return 1; |
418 | } | |
419 | } | |
420 | } else if (sense_key == UNIT_ATTENTION) { | |
5a3ea3b4 | 421 | /* media change */ |
e5e076a3 | 422 | cdrom_saw_media_change(drive); |
1da177e4 | 423 | |
9ce70fb2 | 424 | /* |
5a3ea3b4 BP |
425 | * Arrange to retry the request but be sure to give up |
426 | * if we've retried too many times. | |
9ce70fb2 | 427 | */ |
1da177e4 LT |
428 | if (++rq->errors > ERROR_MAX) |
429 | do_end_request = 1; | |
430 | } else if (sense_key == ILLEGAL_REQUEST || | |
431 | sense_key == DATA_PROTECT) { | |
9ce70fb2 | 432 | /* |
5a3ea3b4 BP |
433 | * No point in retrying after an illegal request or data |
434 | * protect error. | |
9ce70fb2 | 435 | */ |
1ab6d745 | 436 | ide_dump_status(drive, "command error", stat); |
1da177e4 LT |
437 | do_end_request = 1; |
438 | } else if (sense_key == MEDIUM_ERROR) { | |
9ce70fb2 PC |
439 | /* |
440 | * No point in re-trying a zillion times on a bad | |
5a3ea3b4 | 441 | * sector. If we got here the error is not correctable. |
9ce70fb2 | 442 | */ |
1ab6d745 BZ |
443 | ide_dump_status(drive, "media error (bad sector)", |
444 | stat); | |
1da177e4 LT |
445 | do_end_request = 1; |
446 | } else if (sense_key == BLANK_CHECK) { | |
5a3ea3b4 | 447 | /* disk appears blank ?? */ |
1ab6d745 | 448 | ide_dump_status(drive, "media error (blank)", stat); |
1da177e4 | 449 | do_end_request = 1; |
3a7d2484 | 450 | } else if ((err & ~ATA_ABORTED) != 0) { |
5a3ea3b4 | 451 | /* go to the default handler for other errors */ |
1da177e4 LT |
452 | ide_error(drive, "cdrom_decode_status", stat); |
453 | return 1; | |
454 | } else if ((++rq->errors > ERROR_MAX)) { | |
5a3ea3b4 | 455 | /* we've racked up too many retries, abort */ |
1da177e4 LT |
456 | do_end_request = 1; |
457 | } | |
458 | ||
5a3ea3b4 BP |
459 | /* |
460 | * End a request through request sense analysis when we have | |
461 | * sense data. We need this in order to perform end of media | |
462 | * processing. | |
463 | */ | |
bbb89e3d BZ |
464 | if (do_end_request) |
465 | goto end_request; | |
dbe217af | 466 | |
bbb89e3d | 467 | /* |
5a3ea3b4 BP |
468 | * If we got a CHECK_CONDITION status, queue |
469 | * a request sense command. | |
bbb89e3d | 470 | */ |
3a7d2484 | 471 | if (stat & ATA_ERR) |
bbb89e3d | 472 | cdrom_queue_request_sense(drive, NULL, NULL); |
8a116974 | 473 | return 1; |
1da177e4 | 474 | } else { |
fc8323f7 | 475 | blk_dump_rq_flags(rq, PFX "bad rq"); |
8a116974 | 476 | return 2; |
1da177e4 LT |
477 | } |
478 | ||
bbb89e3d | 479 | end_request: |
3a7d2484 | 480 | if (stat & ATA_ERR) { |
6ea52226 | 481 | struct request_queue *q = drive->queue; |
bbb89e3d BZ |
482 | unsigned long flags; |
483 | ||
6ea52226 | 484 | spin_lock_irqsave(q->queue_lock, flags); |
bbb89e3d | 485 | blkdev_dequeue_request(rq); |
6ea52226 | 486 | spin_unlock_irqrestore(q->queue_lock, flags); |
bbb89e3d | 487 | |
b65fac32 | 488 | hwif->rq = NULL; |
1d0bf587 | 489 | |
bbb89e3d | 490 | cdrom_queue_request_sense(drive, rq->sense, rq); |
8a116974 | 491 | return 1; |
bbb89e3d | 492 | } else |
8a116974 | 493 | return 2; |
1da177e4 LT |
494 | } |
495 | ||
1da177e4 LT |
496 | /* |
497 | * Check the contents of the interrupt reason register from the cdrom | |
498 | * and attempt to recover if there are problems. Returns 0 if everything's | |
499 | * ok; nonzero if the request has been terminated. | |
500 | */ | |
9f10d9ee BZ |
501 | static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, |
502 | int len, int ireason, int rw) | |
1da177e4 | 503 | { |
b73c7ee2 BZ |
504 | ide_hwif_t *hwif = drive->hwif; |
505 | ||
088b1b88 | 506 | ide_debug_log(IDE_DBG_FUNC, "ireason: 0x%x, rw: 0x%x", ireason, rw); |
fc8323f7 | 507 | |
0d6f7e3a BZ |
508 | /* |
509 | * ireason == 0: the drive wants to receive data from us | |
510 | * ireason == 2: the drive is expecting to transfer data to us | |
511 | */ | |
512 | if (ireason == (!rw << 1)) | |
1da177e4 | 513 | return 0; |
0d6f7e3a | 514 | else if (ireason == (rw << 1)) { |
5a5222d9 | 515 | |
5a3ea3b4 | 516 | /* whoops... */ |
fc8323f7 | 517 | printk(KERN_ERR PFX "%s: %s: wrong transfer direction!\n", |
177773ed | 518 | drive->name, __func__); |
1da177e4 | 519 | |
ae8789f0 | 520 | ide_pad_transfer(drive, rw, len); |
0d6f7e3a | 521 | } else if (rw == 0 && ireason == 1) { |
5a3ea3b4 BP |
522 | /* |
523 | * Some drives (ASUS) seem to tell us that status info is | |
524 | * available. Just get it and ignore. | |
1da177e4 | 525 | */ |
374e042c | 526 | (void)hwif->tp_ops->read_status(hwif); |
1da177e4 LT |
527 | return 0; |
528 | } else { | |
5a3ea3b4 | 529 | /* drive wants a command packet, or invalid ireason... */ |
fc8323f7 | 530 | printk(KERN_ERR PFX "%s: %s: bad interrupt reason 0x%02x\n", |
177773ed | 531 | drive->name, __func__, ireason); |
1da177e4 LT |
532 | } |
533 | ||
9f10d9ee BZ |
534 | if (rq->cmd_type == REQ_TYPE_ATA_PC) |
535 | rq->cmd_flags |= REQ_FAILED; | |
536 | ||
1da177e4 LT |
537 | return -1; |
538 | } | |
539 | ||
64814f23 BZ |
540 | /* |
541 | * Assume that the drive will always provide data in multiples of at least | |
542 | * SECTOR_SIZE, as it gets hairy to keep track of the transfers otherwise. | |
543 | */ | |
544 | static int ide_cd_check_transfer_size(ide_drive_t *drive, int len) | |
545 | { | |
088b1b88 | 546 | ide_debug_log(IDE_DBG_FUNC, "len: %d", len); |
fc8323f7 | 547 | |
64814f23 BZ |
548 | if ((len % SECTOR_SIZE) == 0) |
549 | return 0; | |
550 | ||
fc8323f7 BP |
551 | printk(KERN_ERR PFX "%s: %s: Bad transfer size %d\n", drive->name, |
552 | __func__, len); | |
64814f23 | 553 | |
570f89ea | 554 | if (drive->atapi_flags & IDE_AFLAG_LIMIT_NFRAMES) |
fc8323f7 BP |
555 | printk(KERN_ERR PFX "This drive is not supported by this " |
556 | "version of the driver\n"); | |
64814f23 | 557 | else { |
fc8323f7 | 558 | printk(KERN_ERR PFX "Trying to limit transfer sizes\n"); |
570f89ea | 559 | drive->atapi_flags |= IDE_AFLAG_LIMIT_NFRAMES; |
64814f23 BZ |
560 | } |
561 | ||
562 | return 1; | |
563 | } | |
564 | ||
90eb808e BP |
565 | static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive, |
566 | struct request *rq) | |
1da177e4 | 567 | { |
088b1b88 | 568 | ide_debug_log(IDE_DBG_RQ, "rq->cmd_flags: 0x%x", rq->cmd_flags); |
fc8323f7 | 569 | |
29f3aaca BZ |
570 | if (rq_data_dir(rq) == READ) { |
571 | unsigned short sectors_per_frame = | |
572 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
573 | int nskip = rq->sector & (sectors_per_frame - 1); | |
1da177e4 | 574 | |
29f3aaca BZ |
575 | /* |
576 | * If the requested sector doesn't start on a frame boundary, | |
577 | * we must adjust the start of the transfer so that it does, | |
578 | * and remember to skip the first few sectors. | |
579 | * | |
580 | * If the rq->current_nr_sectors field is larger than the size | |
581 | * of the buffer, it will mean that we're to skip a number of | |
582 | * sectors equal to the amount by which rq->current_nr_sectors | |
583 | * is larger than the buffer size. | |
584 | */ | |
585 | if (nskip > 0) { | |
5a3ea3b4 | 586 | /* sanity check... */ |
29f3aaca BZ |
587 | if (rq->current_nr_sectors != |
588 | bio_cur_sectors(rq->bio)) { | |
fc8323f7 | 589 | printk(KERN_ERR PFX "%s: %s: buffer botch (%u)\n", |
177773ed | 590 | drive->name, __func__, |
29f3aaca | 591 | rq->current_nr_sectors); |
29f3aaca BZ |
592 | return ide_stopped; |
593 | } | |
594 | rq->current_nr_sectors += nskip; | |
1da177e4 | 595 | } |
1da177e4 | 596 | } |
fc8323f7 | 597 | |
5a3ea3b4 | 598 | /* set up the command */ |
1da177e4 LT |
599 | rq->timeout = ATAPI_WAIT_PC; |
600 | ||
90eb808e BP |
601 | return ide_started; |
602 | } | |
603 | ||
9ce70fb2 | 604 | /* |
5a3ea3b4 BP |
605 | * Fix up a possibly partially-processed request so that we can start it over |
606 | * entirely, or even put it back on the request queue. | |
9ce70fb2 | 607 | */ |
fc8323f7 | 608 | static void ide_cd_restore_request(ide_drive_t *drive, struct request *rq) |
1da177e4 | 609 | { |
fc8323f7 | 610 | |
088b1b88 | 611 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 612 | |
1da177e4 | 613 | if (rq->buffer != bio_data(rq->bio)) { |
83c8565d BP |
614 | sector_t n = |
615 | (rq->buffer - (char *)bio_data(rq->bio)) / SECTOR_SIZE; | |
1da177e4 LT |
616 | |
617 | rq->buffer = bio_data(rq->bio); | |
618 | rq->nr_sectors += n; | |
619 | rq->sector -= n; | |
620 | } | |
83c8565d BP |
621 | rq->current_nr_sectors = bio_cur_sectors(rq->bio); |
622 | rq->hard_cur_sectors = rq->current_nr_sectors; | |
1da177e4 LT |
623 | rq->hard_nr_sectors = rq->nr_sectors; |
624 | rq->hard_sector = rq->sector; | |
625 | rq->q->prep_rq_fn(rq->q, rq); | |
626 | } | |
627 | ||
fc8323f7 | 628 | static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct request *rq) |
8ee69f5a | 629 | { |
088b1b88 | 630 | ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]); |
fc8323f7 | 631 | |
8ee69f5a BZ |
632 | /* |
633 | * Some of the trailing request sense fields are optional, | |
634 | * and some drives don't send them. Sigh. | |
635 | */ | |
636 | if (rq->cmd[0] == GPCMD_REQUEST_SENSE && | |
637 | rq->data_len > 0 && rq->data_len <= 5) | |
638 | while (rq->data_len > 0) { | |
639 | *(u8 *)rq->data++ = 0; | |
640 | --rq->data_len; | |
641 | } | |
642 | } | |
643 | ||
5f828546 FT |
644 | int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, |
645 | int write, void *buffer, unsigned *bufflen, | |
646 | struct request_sense *sense, int timeout, | |
647 | unsigned int cmd_flags) | |
1da177e4 | 648 | { |
5f828546 FT |
649 | struct cdrom_info *info = drive->driver_data; |
650 | struct request_sense local_sense; | |
1da177e4 | 651 | int retries = 10; |
5f828546 | 652 | unsigned int flags = 0; |
1da177e4 | 653 | |
5f828546 FT |
654 | if (!sense) |
655 | sense = &local_sense; | |
1da177e4 | 656 | |
088b1b88 BP |
657 | ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, " |
658 | "cmd_flags: 0x%x", | |
659 | cmd[0], write, timeout, cmd_flags); | |
fc8323f7 | 660 | |
5a3ea3b4 | 661 | /* start of retry loop */ |
1da177e4 | 662 | do { |
5f828546 | 663 | struct request *rq; |
1da177e4 | 664 | int error; |
1da177e4 | 665 | |
5f828546 FT |
666 | rq = blk_get_request(drive->queue, write, __GFP_WAIT); |
667 | ||
668 | memcpy(rq->cmd, cmd, BLK_MAX_CDB); | |
669 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
670 | rq->sense = sense; | |
671 | rq->cmd_flags |= cmd_flags; | |
672 | rq->timeout = timeout; | |
673 | if (buffer) { | |
674 | rq->data = buffer; | |
675 | rq->data_len = *bufflen; | |
676 | } | |
677 | ||
678 | error = blk_execute_rq(drive->queue, info->disk, rq, 0); | |
679 | ||
680 | if (buffer) | |
681 | *bufflen = rq->data_len; | |
682 | ||
683 | flags = rq->cmd_flags; | |
684 | blk_put_request(rq); | |
1da177e4 | 685 | |
5a3ea3b4 BP |
686 | /* |
687 | * FIXME: we should probably abort/retry or something in case of | |
688 | * failure. | |
689 | */ | |
5f828546 | 690 | if (flags & REQ_FAILED) { |
5a3ea3b4 BP |
691 | /* |
692 | * The request failed. Retry if it was due to a unit | |
693 | * attention status (usually means media was changed). | |
694 | */ | |
5f828546 | 695 | struct request_sense *reqbuf = sense; |
1da177e4 LT |
696 | |
697 | if (reqbuf->sense_key == UNIT_ATTENTION) | |
698 | cdrom_saw_media_change(drive); | |
699 | else if (reqbuf->sense_key == NOT_READY && | |
700 | reqbuf->asc == 4 && reqbuf->ascq != 4) { | |
5a3ea3b4 BP |
701 | /* |
702 | * The drive is in the process of loading | |
703 | * a disk. Retry, but wait a little to give | |
704 | * the drive time to complete the load. | |
705 | */ | |
1da177e4 LT |
706 | ssleep(2); |
707 | } else { | |
5a3ea3b4 | 708 | /* otherwise, don't retry */ |
1da177e4 LT |
709 | retries = 0; |
710 | } | |
711 | --retries; | |
712 | } | |
713 | ||
5a3ea3b4 | 714 | /* end of retry loop */ |
5f828546 | 715 | } while ((flags & REQ_FAILED) && retries >= 0); |
1da177e4 | 716 | |
5a3ea3b4 | 717 | /* return an error if the command failed */ |
5f828546 | 718 | return (flags & REQ_FAILED) ? -EIO : 0; |
1da177e4 LT |
719 | } |
720 | ||
aaa04c28 | 721 | /* |
5a3ea3b4 BP |
722 | * Called from blk_end_request_callback() after the data of the request is |
723 | * completed and before the request itself is completed. By returning value '1', | |
724 | * blk_end_request_callback() returns immediately without completing it. | |
aaa04c28 KU |
725 | */ |
726 | static int cdrom_newpc_intr_dummy_cb(struct request *rq) | |
727 | { | |
728 | return 1; | |
729 | } | |
730 | ||
1da177e4 LT |
731 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) |
732 | { | |
23579a2a | 733 | ide_hwif_t *hwif = drive->hwif; |
b65fac32 | 734 | struct request *rq = hwif->rq; |
1da177e4 | 735 | xfer_func_t *xferfunc; |
0041e7c6 | 736 | ide_expiry_t *expiry = NULL; |
1823649b | 737 | int dma_error = 0, dma, stat, thislen, uptodate = 0; |
8a116974 BZ |
738 | int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc; |
739 | int sense = blk_sense_request(rq); | |
ff1bfbc1 | 740 | unsigned int timeout; |
1823649b BZ |
741 | u16 len; |
742 | u8 ireason; | |
1da177e4 | 743 | |
088b1b88 BP |
744 | ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x", |
745 | rq->cmd[0], write); | |
fc8323f7 | 746 | |
5a3ea3b4 | 747 | /* check for errors */ |
12469ac0 | 748 | dma = drive->dma; |
1da177e4 | 749 | if (dma) { |
12469ac0 | 750 | drive->dma = 0; |
5e37bdc0 | 751 | dma_error = hwif->dma_ops->dma_end(drive); |
eba15fba | 752 | if (dma_error) { |
fc8323f7 | 753 | printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name, |
ff1bfbc1 | 754 | write ? "write" : "read"); |
eba15fba BZ |
755 | ide_dma_off(drive); |
756 | } | |
1da177e4 LT |
757 | } |
758 | ||
8a116974 BZ |
759 | rc = cdrom_decode_status(drive, 0, &stat); |
760 | if (rc) { | |
761 | if (rc == 2) | |
762 | goto out_end; | |
1da177e4 | 763 | return ide_stopped; |
8a116974 | 764 | } |
1da177e4 | 765 | |
5a3ea3b4 | 766 | /* using dma, transfer is complete now */ |
1da177e4 | 767 | if (dma) { |
eba15fba | 768 | if (dma_error) |
1da177e4 | 769 | return ide_error(drive, "dma error", stat); |
0041e7c6 | 770 | if (blk_fs_request(rq)) { |
130e8867 BZ |
771 | ide_complete_rq(drive, 0, rq->nr_sectors |
772 | ? (rq->nr_sectors << 9) : ide_rq_bytes(rq)); | |
0041e7c6 | 773 | return ide_stopped; |
9e772d01 | 774 | } else if (rq->cmd_type == REQ_TYPE_ATA_PC && !rq->bio) { |
130e8867 | 775 | ide_complete_rq(drive, 0, 512); |
9e772d01 | 776 | return ide_stopped; |
0041e7c6 | 777 | } |
984c5e59 BZ |
778 | if (blk_pc_request(rq) == 0 && uptodate == 0) |
779 | rq->cmd_flags |= REQ_FAILED; | |
780 | goto out_end; | |
1da177e4 LT |
781 | } |
782 | ||
1823649b | 783 | ide_read_bcount_and_ireason(drive, &len, &ireason); |
0041e7c6 BZ |
784 | |
785 | thislen = blk_fs_request(rq) ? len : rq->data_len; | |
1da177e4 LT |
786 | if (thislen > len) |
787 | thislen = len; | |
788 | ||
088b1b88 BP |
789 | ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d", |
790 | stat, thislen); | |
fc8323f7 | 791 | |
5a3ea3b4 | 792 | /* If DRQ is clear, the command has completed. */ |
3a7d2484 | 793 | if ((stat & ATA_DRQ) == 0) { |
0041e7c6 BZ |
794 | if (blk_fs_request(rq)) { |
795 | /* | |
796 | * If we're not done reading/writing, complain. | |
797 | * Otherwise, complete the command normally. | |
798 | */ | |
799 | uptodate = 1; | |
800 | if (rq->current_nr_sectors > 0) { | |
fc8323f7 | 801 | printk(KERN_ERR PFX "%s: %s: data underrun " |
0041e7c6 | 802 | "(%d blocks)\n", |
177773ed | 803 | drive->name, __func__, |
0041e7c6 BZ |
804 | rq->current_nr_sectors); |
805 | if (!write) | |
806 | rq->cmd_flags |= REQ_FAILED; | |
807 | uptodate = 0; | |
808 | } | |
0041e7c6 | 809 | } else if (!blk_pc_request(rq)) { |
fc8323f7 | 810 | ide_cd_request_sense_fixup(drive, rq); |
5a3ea3b4 | 811 | /* complain if we still have data left to transfer */ |
ff1bfbc1 | 812 | uptodate = rq->data_len ? 0 : 1; |
984c5e59 BZ |
813 | if (uptodate == 0) |
814 | rq->cmd_flags |= REQ_FAILED; | |
ff1bfbc1 | 815 | } |
984c5e59 | 816 | goto out_end; |
aaa04c28 | 817 | } |
1da177e4 | 818 | |
5a3ea3b4 | 819 | /* check which way to transfer data */ |
8a116974 BZ |
820 | rc = ide_cd_check_ireason(drive, rq, len, ireason, write); |
821 | if (rc) | |
822 | goto out_end; | |
0041e7c6 | 823 | |
9f10d9ee BZ |
824 | if (blk_fs_request(rq)) { |
825 | if (write == 0) { | |
0041e7c6 BZ |
826 | int nskip; |
827 | ||
8a116974 BZ |
828 | if (ide_cd_check_transfer_size(drive, len)) |
829 | goto out_end; | |
0041e7c6 BZ |
830 | |
831 | /* | |
832 | * First, figure out if we need to bit-bucket | |
833 | * any of the leading sectors. | |
834 | */ | |
835 | nskip = min_t(int, rq->current_nr_sectors | |
836 | - bio_cur_sectors(rq->bio), | |
837 | thislen >> 9); | |
838 | if (nskip > 0) { | |
ae8789f0 | 839 | ide_pad_transfer(drive, write, nskip << 9); |
0041e7c6 BZ |
840 | rq->current_nr_sectors -= nskip; |
841 | thislen -= (nskip << 9); | |
842 | } | |
843 | } | |
ff1bfbc1 | 844 | } |
1da177e4 | 845 | |
ff1bfbc1 BZ |
846 | if (ireason == 0) { |
847 | write = 1; | |
374e042c | 848 | xferfunc = hwif->tp_ops->output_data; |
9f10d9ee | 849 | } else { |
ff1bfbc1 | 850 | write = 0; |
374e042c | 851 | xferfunc = hwif->tp_ops->input_data; |
1da177e4 LT |
852 | } |
853 | ||
088b1b88 BP |
854 | ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, " |
855 | "ireason: 0x%x", | |
856 | rq->cmd_type, ireason); | |
fc8323f7 | 857 | |
5a3ea3b4 | 858 | /* transfer data */ |
1da177e4 | 859 | while (thislen > 0) { |
0041e7c6 | 860 | u8 *ptr = blk_fs_request(rq) ? NULL : rq->data; |
a11e77db | 861 | int blen = rq->data_len; |
1da177e4 | 862 | |
5a3ea3b4 | 863 | /* bio backed? */ |
1da177e4 | 864 | if (rq->bio) { |
0041e7c6 BZ |
865 | if (blk_fs_request(rq)) { |
866 | ptr = rq->buffer; | |
867 | blen = rq->current_nr_sectors << 9; | |
868 | } else { | |
869 | ptr = bio_data(rq->bio); | |
870 | blen = bio_iovec(rq->bio)->bv_len; | |
871 | } | |
1da177e4 LT |
872 | } |
873 | ||
874 | if (!ptr) { | |
0041e7c6 BZ |
875 | if (blk_fs_request(rq) && !write) |
876 | /* | |
968c4964 | 877 | * If the buffers are full, pipe the rest into |
5a3ea3b4 BP |
878 | * oblivion. |
879 | */ | |
ae8789f0 | 880 | ide_pad_transfer(drive, 0, thislen); |
0041e7c6 | 881 | else { |
fc8323f7 | 882 | printk(KERN_ERR PFX "%s: confused, missing data\n", |
0041e7c6 BZ |
883 | drive->name); |
884 | blk_dump_rq_flags(rq, rq_data_dir(rq) | |
885 | ? "cdrom_newpc_intr, write" | |
886 | : "cdrom_newpc_intr, read"); | |
887 | } | |
1da177e4 LT |
888 | break; |
889 | } | |
890 | ||
891 | if (blen > thislen) | |
892 | blen = thislen; | |
893 | ||
9567b349 | 894 | xferfunc(drive, NULL, ptr, blen); |
1da177e4 LT |
895 | |
896 | thislen -= blen; | |
897 | len -= blen; | |
1da177e4 | 898 | |
0041e7c6 BZ |
899 | if (blk_fs_request(rq)) { |
900 | rq->buffer += blen; | |
901 | rq->nr_sectors -= (blen >> 9); | |
902 | rq->current_nr_sectors -= (blen >> 9); | |
903 | rq->sector += (blen >> 9); | |
904 | ||
905 | if (rq->current_nr_sectors == 0 && rq->nr_sectors) | |
906 | cdrom_end_request(drive, 1); | |
907 | } else { | |
908 | rq->data_len -= blen; | |
909 | ||
aaa04c28 KU |
910 | /* |
911 | * The request can't be completed until DRQ is cleared. | |
912 | * So complete the data, but don't complete the request | |
913 | * using the dummy function for the callback feature | |
914 | * of blk_end_request_callback(). | |
915 | */ | |
0041e7c6 BZ |
916 | if (rq->bio) |
917 | blk_end_request_callback(rq, 0, blen, | |
aaa04c28 | 918 | cdrom_newpc_intr_dummy_cb); |
0041e7c6 BZ |
919 | else |
920 | rq->data += blen; | |
921 | } | |
8a116974 | 922 | if (sense && write == 0) |
bcd88ac3 | 923 | rq->sense_len += blen; |
1da177e4 LT |
924 | } |
925 | ||
5a3ea3b4 | 926 | /* pad, if necessary */ |
0041e7c6 | 927 | if (!blk_fs_request(rq) && len > 0) |
ae8789f0 | 928 | ide_pad_transfer(drive, write, len); |
1da177e4 | 929 | |
ff1bfbc1 BZ |
930 | if (blk_pc_request(rq)) { |
931 | timeout = rq->timeout; | |
ff1bfbc1 BZ |
932 | } else { |
933 | timeout = ATAPI_WAIT_PC; | |
0041e7c6 | 934 | if (!blk_fs_request(rq)) |
4cad085e | 935 | expiry = ide_cd_expiry; |
ff1bfbc1 BZ |
936 | } |
937 | ||
60c0cd02 BZ |
938 | hwif->expiry = expiry; |
939 | ide_set_handler(drive, cdrom_newpc_intr, timeout); | |
1da177e4 | 940 | return ide_started; |
ff1bfbc1 | 941 | |
984c5e59 | 942 | out_end: |
8a116974 | 943 | if (blk_pc_request(rq) && rc == 0) { |
14e04c3f KU |
944 | unsigned int dlen = rq->data_len; |
945 | ||
946 | if (dma) | |
947 | rq->data_len = 0; | |
ff1bfbc1 | 948 | |
3c8a2cce | 949 | if (blk_end_request(rq, 0, dlen)) |
ff1bfbc1 | 950 | BUG(); |
1d0bf587 | 951 | |
b65fac32 | 952 | hwif->rq = NULL; |
ff1bfbc1 | 953 | } else { |
ff1bfbc1 | 954 | cdrom_end_request(drive, uptodate); |
8a116974 BZ |
955 | if (sense && rc == 2) |
956 | ide_error(drive, "request sense failure", stat); | |
ff1bfbc1 BZ |
957 | } |
958 | return ide_stopped; | |
1da177e4 LT |
959 | } |
960 | ||
21ea1f0f | 961 | static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) |
1da177e4 | 962 | { |
21ea1f0f BZ |
963 | struct cdrom_info *cd = drive->driver_data; |
964 | int write = rq_data_dir(rq) == WRITE; | |
965 | unsigned short sectors_per_frame = | |
966 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
1da177e4 | 967 | |
088b1b88 BP |
968 | ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, write: 0x%x, " |
969 | "secs_per_frame: %u", | |
970 | rq->cmd[0], write, sectors_per_frame); | |
fc8323f7 | 971 | |
21ea1f0f | 972 | if (write) { |
5a3ea3b4 | 973 | /* disk has become write protected */ |
e0458ccb | 974 | if (get_disk_ro(cd->disk)) |
21ea1f0f | 975 | return ide_stopped; |
21ea1f0f BZ |
976 | } else { |
977 | /* | |
978 | * We may be retrying this request after an error. Fix up any | |
979 | * weirdness which might be present in the request packet. | |
980 | */ | |
fc8323f7 | 981 | ide_cd_restore_request(drive, rq); |
1da177e4 LT |
982 | } |
983 | ||
5a3ea3b4 | 984 | /* use DMA, if possible / writes *must* be hardware frame aligned */ |
21ea1f0f BZ |
985 | if ((rq->nr_sectors & (sectors_per_frame - 1)) || |
986 | (rq->sector & (sectors_per_frame - 1))) { | |
e0458ccb | 987 | if (write) |
21ea1f0f | 988 | return ide_stopped; |
12469ac0 | 989 | drive->dma = 0; |
21ea1f0f | 990 | } else |
12469ac0 | 991 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
1da177e4 | 992 | |
21ea1f0f BZ |
993 | if (write) |
994 | cd->devinfo.media_written = 1; | |
1da177e4 | 995 | |
b6ca440a | 996 | return ide_started; |
1da177e4 LT |
997 | } |
998 | ||
b6ca440a | 999 | static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) |
1da177e4 | 1000 | { |
1da177e4 | 1001 | |
088b1b88 BP |
1002 | ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x", |
1003 | rq->cmd[0], rq->cmd_type); | |
fc8323f7 | 1004 | |
c9f56a80 BZ |
1005 | if (blk_pc_request(rq)) |
1006 | rq->cmd_flags |= REQ_QUIET; | |
1007 | else | |
1008 | rq->cmd_flags &= ~REQ_FAILED; | |
1da177e4 | 1009 | |
12469ac0 | 1010 | drive->dma = 0; |
1da177e4 | 1011 | |
5a3ea3b4 | 1012 | /* sg request */ |
e5318b53 FT |
1013 | if (rq->bio || ((rq->cmd_type == REQ_TYPE_ATA_PC) && rq->data_len)) { |
1014 | struct request_queue *q = drive->queue; | |
1015 | unsigned int alignment; | |
efa402d5 | 1016 | char *buf; |
1da177e4 | 1017 | |
e5318b53 | 1018 | if (rq->bio) |
efa402d5 | 1019 | buf = bio_data(rq->bio); |
e5318b53 | 1020 | else |
efa402d5 | 1021 | buf = rq->data; |
e5318b53 | 1022 | |
12469ac0 | 1023 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
1da177e4 LT |
1024 | |
1025 | /* | |
1026 | * check if dma is safe | |
5d9e4ea5 LT |
1027 | * |
1028 | * NOTE! The "len" and "addr" checks should possibly have | |
1029 | * separate masks. | |
1da177e4 | 1030 | */ |
e5318b53 | 1031 | alignment = queue_dma_alignment(q) | q->dma_pad_mask; |
9bd27cba BP |
1032 | if ((unsigned long)buf & alignment |
1033 | || rq->data_len & q->dma_pad_mask | |
efa402d5 | 1034 | || object_is_on_stack(buf)) |
12469ac0 | 1035 | drive->dma = 0; |
1da177e4 | 1036 | } |
1da177e4 LT |
1037 | } |
1038 | ||
99384aea | 1039 | static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, |
e5e076a3 | 1040 | sector_t block) |
1da177e4 | 1041 | { |
b788ee9c | 1042 | struct ide_cmd cmd; |
e0458ccb | 1043 | int uptodate = 0; |
b788ee9c | 1044 | |
088b1b88 BP |
1045 | ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu", |
1046 | rq->cmd[0], (unsigned long long)block); | |
1047 | ||
1048 | if (drive->debug_mask & IDE_DBG_RQ) | |
1049 | blk_dump_rq_flags(rq, "ide_cd_do_request"); | |
fc8323f7 | 1050 | |
1da177e4 | 1051 | if (blk_fs_request(rq)) { |
e0458ccb BZ |
1052 | if (cdrom_start_rw(drive, rq) == ide_stopped || |
1053 | ide_cd_prepare_rw_request(drive, rq) == ide_stopped) | |
1054 | goto out_end; | |
c9f56a80 | 1055 | } else if (blk_sense_request(rq) || blk_pc_request(rq) || |
cea2885a | 1056 | rq->cmd_type == REQ_TYPE_ATA_PC) { |
7fcebda5 BP |
1057 | if (!rq->timeout) |
1058 | rq->timeout = ATAPI_WAIT_PC; | |
1059 | ||
b6ca440a | 1060 | cdrom_do_block_pc(drive, rq); |
4aff5e23 | 1061 | } else if (blk_special_request(rq)) { |
5a3ea3b4 | 1062 | /* right now this can only be a reset... */ |
e0458ccb BZ |
1063 | uptodate = 1; |
1064 | goto out_end; | |
ab9d6e33 | 1065 | } else { |
fc8323f7 | 1066 | blk_dump_rq_flags(rq, DRV_NAME " bad flags"); |
e0458ccb | 1067 | goto out_end; |
1da177e4 | 1068 | } |
b6ca440a | 1069 | |
b788ee9c BZ |
1070 | memset(&cmd, 0, sizeof(cmd)); |
1071 | ||
1072 | if (rq_data_dir(rq)) | |
1073 | cmd.tf_flags |= IDE_TFLAG_WRITE; | |
1074 | ||
1075 | cmd.rq = rq; | |
1076 | ||
1077 | return ide_issue_pc(drive, &cmd); | |
e0458ccb BZ |
1078 | out_end: |
1079 | cdrom_end_request(drive, uptodate); | |
1080 | return ide_stopped; | |
1da177e4 LT |
1081 | } |
1082 | ||
5a3ea3b4 | 1083 | /* |
1da177e4 LT |
1084 | * Ioctl handling. |
1085 | * | |
5a3ea3b4 BP |
1086 | * Routines which queue packet commands take as a final argument a pointer to a |
1087 | * request_sense struct. If execution of the command results in an error with a | |
1088 | * CHECK CONDITION status, this structure will be filled with the results of the | |
1089 | * subsequent request sense command. The pointer can also be NULL, in which case | |
1090 | * no sense information is returned. | |
1da177e4 | 1091 | */ |
e5e076a3 | 1092 | static void msf_from_bcd(struct atapi_msf *msf) |
1da177e4 | 1093 | { |
fc99856a AB |
1094 | msf->minute = bcd2bin(msf->minute); |
1095 | msf->second = bcd2bin(msf->second); | |
1096 | msf->frame = bcd2bin(msf->frame); | |
1da177e4 LT |
1097 | } |
1098 | ||
f9afd18b | 1099 | int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 | 1100 | { |
1da177e4 LT |
1101 | struct cdrom_info *info = drive->driver_data; |
1102 | struct cdrom_device_info *cdi = &info->devinfo; | |
5f828546 | 1103 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1104 | |
088b1b88 | 1105 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1106 | |
5f828546 FT |
1107 | memset(cmd, 0, BLK_MAX_CDB); |
1108 | cmd[0] = GPCMD_TEST_UNIT_READY; | |
1da177e4 | 1109 | |
cdf6000d | 1110 | /* |
5a3ea3b4 BP |
1111 | * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs |
1112 | * instead of supporting the LOAD_UNLOAD opcode. | |
cdf6000d | 1113 | */ |
5f828546 | 1114 | cmd[7] = cdi->sanyo_slot % 3; |
1da177e4 | 1115 | |
141d3b27 | 1116 | return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET); |
1da177e4 LT |
1117 | } |
1118 | ||
1da177e4 LT |
1119 | static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, |
1120 | unsigned long *sectors_per_frame, | |
1121 | struct request_sense *sense) | |
1122 | { | |
1123 | struct { | |
141d3b27 HH |
1124 | __be32 lba; |
1125 | __be32 blocklen; | |
1da177e4 LT |
1126 | } capbuf; |
1127 | ||
1128 | int stat; | |
5f828546 FT |
1129 | unsigned char cmd[BLK_MAX_CDB]; |
1130 | unsigned len = sizeof(capbuf); | |
938bb03d | 1131 | u32 blocklen; |
1da177e4 | 1132 | |
088b1b88 | 1133 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1134 | |
5f828546 FT |
1135 | memset(cmd, 0, BLK_MAX_CDB); |
1136 | cmd[0] = GPCMD_READ_CDVD_CAPACITY; | |
1da177e4 | 1137 | |
5f828546 FT |
1138 | stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, |
1139 | REQ_QUIET); | |
e8e7b9eb JA |
1140 | if (stat) |
1141 | return stat; | |
1142 | ||
1143 | /* | |
1144 | * Sanity check the given block size | |
1145 | */ | |
938bb03d PT |
1146 | blocklen = be32_to_cpu(capbuf.blocklen); |
1147 | switch (blocklen) { | |
1148 | case 512: | |
1149 | case 1024: | |
1150 | case 2048: | |
1151 | case 4096: | |
e8e7b9eb JA |
1152 | break; |
1153 | default: | |
fc8323f7 BP |
1154 | printk(KERN_ERR PFX "%s: weird block size %u\n", |
1155 | drive->name, blocklen); | |
1156 | printk(KERN_ERR PFX "%s: default to 2kb block size\n", | |
1157 | drive->name); | |
938bb03d | 1158 | blocklen = 2048; |
e8e7b9eb | 1159 | break; |
1da177e4 LT |
1160 | } |
1161 | ||
e8e7b9eb | 1162 | *capacity = 1 + be32_to_cpu(capbuf.lba); |
938bb03d | 1163 | *sectors_per_frame = blocklen >> SECTOR_BITS; |
71b429ca | 1164 | |
088b1b88 BP |
1165 | ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu", |
1166 | *capacity, *sectors_per_frame); | |
71b429ca | 1167 | |
e8e7b9eb | 1168 | return 0; |
1da177e4 LT |
1169 | } |
1170 | ||
1171 | static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, | |
1172 | int format, char *buf, int buflen, | |
1173 | struct request_sense *sense) | |
1174 | { | |
5f828546 | 1175 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1176 | |
088b1b88 | 1177 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1178 | |
5f828546 | 1179 | memset(cmd, 0, BLK_MAX_CDB); |
1da177e4 | 1180 | |
5f828546 FT |
1181 | cmd[0] = GPCMD_READ_TOC_PMA_ATIP; |
1182 | cmd[6] = trackno; | |
1183 | cmd[7] = (buflen >> 8); | |
1184 | cmd[8] = (buflen & 0xff); | |
1185 | cmd[9] = (format << 6); | |
1da177e4 LT |
1186 | |
1187 | if (msf_flag) | |
5f828546 | 1188 | cmd[1] = 2; |
1da177e4 | 1189 | |
5f828546 | 1190 | return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); |
1da177e4 LT |
1191 | } |
1192 | ||
1da177e4 | 1193 | /* Try to read the entire TOC for the disk into our internal buffer. */ |
17802998 | 1194 | int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 LT |
1195 | { |
1196 | int stat, ntracks, i; | |
1197 | struct cdrom_info *info = drive->driver_data; | |
1198 | struct cdrom_device_info *cdi = &info->devinfo; | |
1199 | struct atapi_toc *toc = info->toc; | |
1200 | struct { | |
1201 | struct atapi_toc_header hdr; | |
1202 | struct atapi_toc_entry ent; | |
1203 | } ms_tmp; | |
1204 | long last_written; | |
1205 | unsigned long sectors_per_frame = SECTORS_PER_FRAME; | |
1206 | ||
088b1b88 | 1207 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1208 | |
1da177e4 | 1209 | if (toc == NULL) { |
5a3ea3b4 | 1210 | /* try to allocate space */ |
2a91f3e5 | 1211 | toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); |
1da177e4 | 1212 | if (toc == NULL) { |
fc8323f7 | 1213 | printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n", |
83c8565d | 1214 | drive->name); |
1da177e4 LT |
1215 | return -ENOMEM; |
1216 | } | |
2a91f3e5 | 1217 | info->toc = toc; |
1da177e4 LT |
1218 | } |
1219 | ||
5a3ea3b4 BP |
1220 | /* |
1221 | * Check to see if the existing data is still valid. If it is, | |
1222 | * just return. | |
1223 | */ | |
1da177e4 LT |
1224 | (void) cdrom_check_status(drive, sense); |
1225 | ||
570f89ea | 1226 | if (drive->atapi_flags & IDE_AFLAG_TOC_VALID) |
1da177e4 LT |
1227 | return 0; |
1228 | ||
5a3ea3b4 | 1229 | /* try to get the total cdrom capacity and sector size */ |
1da177e4 LT |
1230 | stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame, |
1231 | sense); | |
1232 | if (stat) | |
1233 | toc->capacity = 0x1fffff; | |
1234 | ||
1235 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
5a3ea3b4 | 1236 | /* save a private copy of the TOC capacity for error handling */ |
dbe217af AC |
1237 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1238 | ||
1da177e4 LT |
1239 | blk_queue_hardsect_size(drive->queue, |
1240 | sectors_per_frame << SECTOR_BITS); | |
1241 | ||
5a3ea3b4 | 1242 | /* first read just the header, so we know how long the TOC is */ |
1da177e4 LT |
1243 | stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, |
1244 | sizeof(struct atapi_toc_header), sense); | |
2a91f3e5 JJ |
1245 | if (stat) |
1246 | return stat; | |
1da177e4 | 1247 | |
570f89ea | 1248 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1249 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1250 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1251 | } |
1da177e4 LT |
1252 | |
1253 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; | |
1254 | if (ntracks <= 0) | |
1255 | return -EIO; | |
1256 | if (ntracks > MAX_TRACKS) | |
1257 | ntracks = MAX_TRACKS; | |
1258 | ||
5a3ea3b4 | 1259 | /* now read the whole schmeer */ |
1da177e4 LT |
1260 | stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, |
1261 | (char *)&toc->hdr, | |
1262 | sizeof(struct atapi_toc_header) + | |
1263 | (ntracks + 1) * | |
1264 | sizeof(struct atapi_toc_entry), sense); | |
1265 | ||
1266 | if (stat && toc->hdr.first_track > 1) { | |
5a3ea3b4 BP |
1267 | /* |
1268 | * Cds with CDI tracks only don't have any TOC entries, despite | |
1269 | * of this the returned values are | |
1270 | * first_track == last_track = number of CDI tracks + 1, | |
1271 | * so that this case is indistinguishable from the same layout | |
1272 | * plus an additional audio track. If we get an error for the | |
1273 | * regular case, we assume a CDI without additional audio | |
1274 | * tracks. In this case the readable TOC is empty (CDI tracks | |
1275 | * are not included) and only holds the Leadout entry. | |
1276 | * | |
1277 | * Heiko Eißfeldt. | |
1278 | */ | |
1da177e4 LT |
1279 | ntracks = 0; |
1280 | stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, | |
1281 | (char *)&toc->hdr, | |
1282 | sizeof(struct atapi_toc_header) + | |
1283 | (ntracks + 1) * | |
1284 | sizeof(struct atapi_toc_entry), | |
1285 | sense); | |
cdf6000d | 1286 | if (stat) |
1da177e4 | 1287 | return stat; |
cdf6000d | 1288 | |
570f89ea | 1289 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1290 | toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT); |
1291 | toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT); | |
cdf6000d | 1292 | } else { |
1da177e4 LT |
1293 | toc->hdr.first_track = CDROM_LEADOUT; |
1294 | toc->hdr.last_track = CDROM_LEADOUT; | |
1295 | } | |
1296 | } | |
1297 | ||
1298 | if (stat) | |
1299 | return stat; | |
1300 | ||
7eb43fd2 | 1301 | toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); |
1da177e4 | 1302 | |
570f89ea | 1303 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1304 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1305 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1306 | } |
1da177e4 | 1307 | |
cdf6000d | 1308 | for (i = 0; i <= ntracks; i++) { |
570f89ea BP |
1309 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
1310 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) | |
fc99856a | 1311 | toc->ent[i].track = bcd2bin(toc->ent[i].track); |
1da177e4 LT |
1312 | msf_from_bcd(&toc->ent[i].addr.msf); |
1313 | } | |
9ce70fb2 PC |
1314 | toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, |
1315 | toc->ent[i].addr.msf.second, | |
1316 | toc->ent[i].addr.msf.frame); | |
1da177e4 LT |
1317 | } |
1318 | ||
1da177e4 | 1319 | if (toc->hdr.first_track != CDROM_LEADOUT) { |
5a3ea3b4 | 1320 | /* read the multisession information */ |
1da177e4 LT |
1321 | stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, |
1322 | sizeof(ms_tmp), sense); | |
2a91f3e5 JJ |
1323 | if (stat) |
1324 | return stat; | |
1da177e4 LT |
1325 | |
1326 | toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); | |
1327 | } else { | |
e5e076a3 BP |
1328 | ms_tmp.hdr.last_track = CDROM_LEADOUT; |
1329 | ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; | |
1da177e4 LT |
1330 | toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ |
1331 | } | |
1332 | ||
570f89ea | 1333 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
5a3ea3b4 | 1334 | /* re-read multisession information using MSF format */ |
1da177e4 LT |
1335 | stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, |
1336 | sizeof(ms_tmp), sense); | |
1337 | if (stat) | |
1338 | return stat; | |
1339 | ||
9ce70fb2 | 1340 | msf_from_bcd(&ms_tmp.ent.addr.msf); |
1da177e4 | 1341 | toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, |
9ce70fb2 | 1342 | ms_tmp.ent.addr.msf.second, |
1da177e4 LT |
1343 | ms_tmp.ent.addr.msf.frame); |
1344 | } | |
1da177e4 LT |
1345 | |
1346 | toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); | |
1347 | ||
5a3ea3b4 | 1348 | /* now try to get the total cdrom capacity */ |
1da177e4 LT |
1349 | stat = cdrom_get_last_written(cdi, &last_written); |
1350 | if (!stat && (last_written > toc->capacity)) { | |
1351 | toc->capacity = last_written; | |
1352 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
dbe217af | 1353 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1da177e4 LT |
1354 | } |
1355 | ||
1356 | /* Remember that we've read this stuff. */ | |
570f89ea | 1357 | drive->atapi_flags |= IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
1358 | |
1359 | return 0; | |
1360 | } | |
1361 | ||
17802998 | 1362 | int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) |
9235e68b EP |
1363 | { |
1364 | struct cdrom_info *info = drive->driver_data; | |
1365 | struct cdrom_device_info *cdi = &info->devinfo; | |
1366 | struct packet_command cgc; | |
455d80a9 | 1367 | int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; |
9235e68b | 1368 | |
088b1b88 | 1369 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1370 | |
570f89ea | 1371 | if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0) |
455d80a9 | 1372 | size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; |
9235e68b | 1373 | |
455d80a9 | 1374 | init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); |
5a3ea3b4 BP |
1375 | do { |
1376 | /* we seem to get stat=0x01,err=0x00 the first time (??) */ | |
9235e68b EP |
1377 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); |
1378 | if (!stat) | |
1379 | break; | |
1380 | } while (--attempts); | |
1381 | return stat; | |
1382 | } | |
1383 | ||
17802998 | 1384 | void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) |
9235e68b | 1385 | { |
4fe67178 | 1386 | struct cdrom_info *cd = drive->driver_data; |
481c8c64 BZ |
1387 | u16 curspeed, maxspeed; |
1388 | ||
088b1b88 | 1389 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1390 | |
570f89ea | 1391 | if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) { |
141d3b27 HH |
1392 | curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]); |
1393 | maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]); | |
9235e68b | 1394 | } else { |
141d3b27 HH |
1395 | curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]); |
1396 | maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]); | |
9235e68b | 1397 | } |
481c8c64 | 1398 | |
088b1b88 BP |
1399 | ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u", |
1400 | curspeed, maxspeed); | |
71b429ca | 1401 | |
2bc4cf2d BZ |
1402 | cd->current_speed = (curspeed + (176/2)) / 176; |
1403 | cd->max_speed = (maxspeed + (176/2)) / 176; | |
9235e68b EP |
1404 | } |
1405 | ||
20e7f7ef BZ |
1406 | #define IDE_CD_CAPABILITIES \ |
1407 | (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ | |
1408 | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ | |
1409 | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ | |
1410 | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ | |
1411 | CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) | |
1da177e4 | 1412 | |
1da177e4 LT |
1413 | static struct cdrom_device_ops ide_cdrom_dops = { |
1414 | .open = ide_cdrom_open_real, | |
1415 | .release = ide_cdrom_release_real, | |
1416 | .drive_status = ide_cdrom_drive_status, | |
1417 | .media_changed = ide_cdrom_check_media_change_real, | |
1418 | .tray_move = ide_cdrom_tray_move, | |
1419 | .lock_door = ide_cdrom_lock_door, | |
1420 | .select_speed = ide_cdrom_select_speed, | |
1421 | .get_last_session = ide_cdrom_get_last_session, | |
1422 | .get_mcn = ide_cdrom_get_mcn, | |
1423 | .reset = ide_cdrom_reset, | |
1424 | .audio_ioctl = ide_cdrom_audio_ioctl, | |
20e7f7ef | 1425 | .capability = IDE_CD_CAPABILITIES, |
1da177e4 LT |
1426 | .generic_packet = ide_cdrom_packet, |
1427 | }; | |
1428 | ||
9ce70fb2 | 1429 | static int ide_cdrom_register(ide_drive_t *drive, int nslots) |
1da177e4 LT |
1430 | { |
1431 | struct cdrom_info *info = drive->driver_data; | |
1432 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1433 | ||
088b1b88 | 1434 | ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots); |
fc8323f7 | 1435 | |
1da177e4 | 1436 | devinfo->ops = &ide_cdrom_dops; |
2bc4cf2d | 1437 | devinfo->speed = info->current_speed; |
1da177e4 | 1438 | devinfo->capacity = nslots; |
2a91f3e5 | 1439 | devinfo->handle = drive; |
1da177e4 | 1440 | strcpy(devinfo->name, drive->name); |
1da177e4 | 1441 | |
570f89ea | 1442 | if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT) |
3cbd814e BZ |
1443 | devinfo->mask |= CDC_SELECT_SPEED; |
1444 | ||
1da177e4 LT |
1445 | devinfo->disk = info->disk; |
1446 | return register_cdrom(devinfo); | |
1447 | } | |
1448 | ||
e5e076a3 | 1449 | static int ide_cdrom_probe_capabilities(ide_drive_t *drive) |
1da177e4 | 1450 | { |
4fe67178 BZ |
1451 | struct cdrom_info *cd = drive->driver_data; |
1452 | struct cdrom_device_info *cdi = &cd->devinfo; | |
455d80a9 BZ |
1453 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; |
1454 | mechtype_t mechtype; | |
1da177e4 LT |
1455 | int nslots = 1; |
1456 | ||
088b1b88 BP |
1457 | ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx", |
1458 | drive->media, drive->atapi_flags); | |
fc8323f7 | 1459 | |
3f1b86d8 BZ |
1460 | cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | |
1461 | CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | | |
1462 | CDC_MO_DRIVE | CDC_RAM); | |
1463 | ||
1da177e4 | 1464 | if (drive->media == ide_optical) { |
3f1b86d8 | 1465 | cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); |
fc8323f7 | 1466 | printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n", |
83c8565d | 1467 | drive->name); |
1da177e4 LT |
1468 | return nslots; |
1469 | } | |
1470 | ||
570f89ea BP |
1471 | if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) { |
1472 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; | |
3f1b86d8 | 1473 | cdi->mask &= ~CDC_PLAY_AUDIO; |
1da177e4 LT |
1474 | return nslots; |
1475 | } | |
1476 | ||
1477 | /* | |
5a3ea3b4 BP |
1478 | * We have to cheat a little here. the packet will eventually be queued |
1479 | * with ide_cdrom_packet(), which extracts the drive from cdi->handle. | |
1480 | * Since this device hasn't been registered with the Uniform layer yet, | |
1481 | * it can't do this. Same goes for cdi->ops. | |
1da177e4 | 1482 | */ |
2a91f3e5 | 1483 | cdi->handle = drive; |
1da177e4 LT |
1484 | cdi->ops = &ide_cdrom_dops; |
1485 | ||
455d80a9 | 1486 | if (ide_cdrom_get_capabilities(drive, buf)) |
1da177e4 LT |
1487 | return 0; |
1488 | ||
455d80a9 | 1489 | if ((buf[8 + 6] & 0x01) == 0) |
42619d35 | 1490 | drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; |
455d80a9 | 1491 | if (buf[8 + 6] & 0x08) |
570f89ea | 1492 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; |
455d80a9 | 1493 | if (buf[8 + 3] & 0x01) |
3f1b86d8 | 1494 | cdi->mask &= ~CDC_CD_R; |
455d80a9 | 1495 | if (buf[8 + 3] & 0x02) |
3f1b86d8 | 1496 | cdi->mask &= ~(CDC_CD_RW | CDC_RAM); |
455d80a9 | 1497 | if (buf[8 + 2] & 0x38) |
3f1b86d8 | 1498 | cdi->mask &= ~CDC_DVD; |
455d80a9 | 1499 | if (buf[8 + 3] & 0x20) |
3f1b86d8 | 1500 | cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); |
455d80a9 | 1501 | if (buf[8 + 3] & 0x10) |
3f1b86d8 | 1502 | cdi->mask &= ~CDC_DVD_R; |
570f89ea | 1503 | if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK)) |
3f1b86d8 | 1504 | cdi->mask &= ~CDC_PLAY_AUDIO; |
455d80a9 BZ |
1505 | |
1506 | mechtype = buf[8 + 6] >> 5; | |
f20f2586 BP |
1507 | if (mechtype == mechtype_caddy || |
1508 | mechtype == mechtype_popup || | |
1509 | (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE)) | |
3f1b86d8 | 1510 | cdi->mask |= CDC_CLOSE_TRAY; |
1da177e4 | 1511 | |
1da177e4 | 1512 | if (cdi->sanyo_slot > 0) { |
3f1b86d8 | 1513 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 | 1514 | nslots = 3; |
cdf6000d BZ |
1515 | } else if (mechtype == mechtype_individual_changer || |
1516 | mechtype == mechtype_cartridge_changer) { | |
2609d06d BZ |
1517 | nslots = cdrom_number_of_slots(cdi); |
1518 | if (nslots > 1) | |
3f1b86d8 | 1519 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 LT |
1520 | } |
1521 | ||
455d80a9 | 1522 | ide_cdrom_update_speed(drive, buf); |
4fe67178 | 1523 | |
fc8323f7 | 1524 | printk(KERN_INFO PFX "%s: ATAPI", drive->name); |
4fe67178 BZ |
1525 | |
1526 | /* don't print speed if the drive reported 0 */ | |
2bc4cf2d BZ |
1527 | if (cd->max_speed) |
1528 | printk(KERN_CONT " %dX", cd->max_speed); | |
4fe67178 | 1529 | |
3f1b86d8 | 1530 | printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); |
1da177e4 | 1531 | |
3f1b86d8 BZ |
1532 | if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) |
1533 | printk(KERN_CONT " DVD%s%s", | |
1534 | (cdi->mask & CDC_DVD_R) ? "" : "-R", | |
419a5b67 | 1535 | (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM"); |
1da177e4 | 1536 | |
3f1b86d8 BZ |
1537 | if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) |
1538 | printk(KERN_CONT " CD%s%s", | |
1539 | (cdi->mask & CDC_CD_R) ? "" : "-R", | |
1540 | (cdi->mask & CDC_CD_RW) ? "" : "/RW"); | |
1da177e4 | 1541 | |
3f1b86d8 BZ |
1542 | if ((cdi->mask & CDC_SELECT_DISC) == 0) |
1543 | printk(KERN_CONT " changer w/%d slots", nslots); | |
1544 | else | |
1545 | printk(KERN_CONT " drive"); | |
1da177e4 | 1546 | |
fc8323f7 BP |
1547 | printk(KERN_CONT ", %dkB Cache\n", |
1548 | be16_to_cpup((__be16 *)&buf[8 + 12])); | |
1da177e4 LT |
1549 | |
1550 | return nslots; | |
1551 | } | |
1552 | ||
5a3ea3b4 | 1553 | /* standard prep_rq_fn that builds 10 byte cmds */ |
165125e1 | 1554 | static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) |
1da177e4 LT |
1555 | { |
1556 | int hard_sect = queue_hardsect_size(q); | |
1557 | long block = (long)rq->hard_sector / (hard_sect >> 9); | |
1558 | unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9); | |
1559 | ||
d34c87e4 | 1560 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
1561 | |
1562 | if (rq_data_dir(rq) == READ) | |
1563 | rq->cmd[0] = GPCMD_READ_10; | |
1564 | else | |
1565 | rq->cmd[0] = GPCMD_WRITE_10; | |
1566 | ||
1567 | /* | |
1568 | * fill in lba | |
1569 | */ | |
1570 | rq->cmd[2] = (block >> 24) & 0xff; | |
1571 | rq->cmd[3] = (block >> 16) & 0xff; | |
1572 | rq->cmd[4] = (block >> 8) & 0xff; | |
1573 | rq->cmd[5] = block & 0xff; | |
1574 | ||
1575 | /* | |
1576 | * and transfer length | |
1577 | */ | |
1578 | rq->cmd[7] = (blocks >> 8) & 0xff; | |
1579 | rq->cmd[8] = blocks & 0xff; | |
1580 | rq->cmd_len = 10; | |
1581 | return BLKPREP_OK; | |
1582 | } | |
1583 | ||
1584 | /* | |
1585 | * Most of the SCSI commands are supported directly by ATAPI devices. | |
1586 | * This transform handles the few exceptions. | |
1587 | */ | |
1588 | static int ide_cdrom_prep_pc(struct request *rq) | |
1589 | { | |
1590 | u8 *c = rq->cmd; | |
1591 | ||
5a3ea3b4 | 1592 | /* transform 6-byte read/write commands to the 10-byte version */ |
1da177e4 LT |
1593 | if (c[0] == READ_6 || c[0] == WRITE_6) { |
1594 | c[8] = c[4]; | |
1595 | c[5] = c[3]; | |
1596 | c[4] = c[2]; | |
1597 | c[3] = c[1] & 0x1f; | |
1598 | c[2] = 0; | |
1599 | c[1] &= 0xe0; | |
1600 | c[0] += (READ_10 - READ_6); | |
1601 | rq->cmd_len = 10; | |
1602 | return BLKPREP_OK; | |
1603 | } | |
1604 | ||
1605 | /* | |
1606 | * it's silly to pretend we understand 6-byte sense commands, just | |
1607 | * reject with ILLEGAL_REQUEST and the caller should take the | |
1608 | * appropriate action | |
1609 | */ | |
1610 | if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { | |
1611 | rq->errors = ILLEGAL_REQUEST; | |
1612 | return BLKPREP_KILL; | |
1613 | } | |
9ce70fb2 | 1614 | |
1da177e4 LT |
1615 | return BLKPREP_OK; |
1616 | } | |
1617 | ||
165125e1 | 1618 | static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) |
1da177e4 | 1619 | { |
4aff5e23 | 1620 | if (blk_fs_request(rq)) |
1da177e4 | 1621 | return ide_cdrom_prep_fs(q, rq); |
4aff5e23 | 1622 | else if (blk_pc_request(rq)) |
1da177e4 LT |
1623 | return ide_cdrom_prep_pc(rq); |
1624 | ||
1625 | return 0; | |
1626 | } | |
1627 | ||
e59724c7 BZ |
1628 | struct cd_list_entry { |
1629 | const char *id_model; | |
1630 | const char *id_firmware; | |
1631 | unsigned int cd_flags; | |
1632 | }; | |
1633 | ||
5e657a9e BP |
1634 | #ifdef CONFIG_IDE_PROC_FS |
1635 | static sector_t ide_cdrom_capacity(ide_drive_t *drive) | |
1636 | { | |
1637 | unsigned long capacity, sectors_per_frame; | |
1638 | ||
1639 | if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL)) | |
1640 | return 0; | |
1641 | ||
1642 | return capacity * sectors_per_frame; | |
1643 | } | |
1644 | ||
e5e076a3 BP |
1645 | static int proc_idecd_read_capacity(char *page, char **start, off_t off, |
1646 | int count, int *eof, void *data) | |
5e657a9e BP |
1647 | { |
1648 | ide_drive_t *drive = data; | |
1649 | int len; | |
1650 | ||
1651 | len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive)); | |
1652 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); | |
1653 | } | |
1654 | ||
1655 | static ide_proc_entry_t idecd_proc[] = { | |
1656 | { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL }, | |
1657 | { NULL, 0, NULL, NULL } | |
1658 | }; | |
1659 | ||
79cb3803 BZ |
1660 | static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive) |
1661 | { | |
1662 | return idecd_proc; | |
1663 | } | |
1664 | ||
1665 | static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive) | |
1666 | { | |
519d6808 | 1667 | return NULL; |
79cb3803 | 1668 | } |
5e657a9e BP |
1669 | #endif |
1670 | ||
e59724c7 BZ |
1671 | static const struct cd_list_entry ide_cd_quirks_list[] = { |
1672 | /* Limit transfer size per interrupt. */ | |
570f89ea BP |
1673 | { "SAMSUNG CD-ROM SCR-2430", NULL, IDE_AFLAG_LIMIT_NFRAMES }, |
1674 | { "SAMSUNG CD-ROM SCR-2432", NULL, IDE_AFLAG_LIMIT_NFRAMES }, | |
e59724c7 | 1675 | /* SCR-3231 doesn't support the SET_CD_SPEED command. */ |
570f89ea | 1676 | { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT }, |
e59724c7 | 1677 | /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ |
570f89ea BP |
1678 | { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD | |
1679 | IDE_AFLAG_PRE_ATAPI12, }, | |
e59724c7 | 1680 | /* Vertos 300, some versions of this drive like to talk BCD. */ |
570f89ea | 1681 | { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, }, |
e59724c7 | 1682 | /* Vertos 600 ESD. */ |
570f89ea | 1683 | { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, }, |
e59724c7 BZ |
1684 | /* |
1685 | * Sanyo 3 CD changer uses a non-standard command for CD changing | |
1686 | * (by default standard ATAPI support for CD changers is used). | |
1687 | */ | |
570f89ea BP |
1688 | { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD }, |
1689 | { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD }, | |
1690 | { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD }, | |
e59724c7 | 1691 | /* Stingray 8X CD-ROM. */ |
570f89ea | 1692 | { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 }, |
e59724c7 BZ |
1693 | /* |
1694 | * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length | |
1695 | * mode sense page capabilities size, but older drives break. | |
1696 | */ | |
570f89ea BP |
1697 | { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, |
1698 | { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, | |
e59724c7 | 1699 | /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ |
570f89ea | 1700 | { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS }, |
e59724c7 BZ |
1701 | /* |
1702 | * Some drives used by Apple don't advertise audio play | |
1703 | * but they do support reading TOC & audio datas. | |
1704 | */ | |
570f89ea BP |
1705 | { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
1706 | { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1707 | { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1708 | { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1709 | { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
f3e85ee7 | 1710 | { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
f20f2586 | 1711 | { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
64c2eae2 | 1712 | { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
e59724c7 BZ |
1713 | { NULL, NULL, 0 } |
1714 | }; | |
1715 | ||
4dde4492 | 1716 | static unsigned int ide_cd_flags(u16 *id) |
e59724c7 BZ |
1717 | { |
1718 | const struct cd_list_entry *cle = ide_cd_quirks_list; | |
1719 | ||
1720 | while (cle->id_model) { | |
4dde4492 | 1721 | if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 && |
e59724c7 | 1722 | (cle->id_firmware == NULL || |
4dde4492 | 1723 | strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware))) |
e59724c7 BZ |
1724 | return cle->cd_flags; |
1725 | cle++; | |
1726 | } | |
1727 | ||
1728 | return 0; | |
1729 | } | |
1730 | ||
e5e076a3 | 1731 | static int ide_cdrom_setup(ide_drive_t *drive) |
1da177e4 | 1732 | { |
4fe67178 BZ |
1733 | struct cdrom_info *cd = drive->driver_data; |
1734 | struct cdrom_device_info *cdi = &cd->devinfo; | |
4dde4492 BZ |
1735 | u16 *id = drive->id; |
1736 | char *fw_rev = (char *)&id[ATA_ID_FW_REV]; | |
1da177e4 LT |
1737 | int nslots; |
1738 | ||
088b1b88 | 1739 | ide_debug_log(IDE_DBG_PROBE, "enter"); |
fc8323f7 | 1740 | |
1da177e4 LT |
1741 | blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn); |
1742 | blk_queue_dma_alignment(drive->queue, 31); | |
e5318b53 | 1743 | blk_queue_update_dma_pad(drive->queue, 15); |
1da177e4 LT |
1744 | drive->queue->unplug_delay = (1 * HZ) / 1000; |
1745 | if (!drive->queue->unplug_delay) | |
1746 | drive->queue->unplug_delay = 1; | |
1747 | ||
fe11edfa BZ |
1748 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
1749 | drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id); | |
1da177e4 | 1750 | |
570f89ea | 1751 | if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) && |
4dde4492 | 1752 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1753 | drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD | |
1754 | IDE_AFLAG_TOCADDR_AS_BCD); | |
1755 | else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) && | |
4dde4492 | 1756 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1757 | drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD; |
1758 | else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD) | |
5a3ea3b4 BP |
1759 | /* 3 => use CD in slot 0 */ |
1760 | cdi->sanyo_slot = 3; | |
1da177e4 | 1761 | |
9ce70fb2 | 1762 | nslots = ide_cdrom_probe_capabilities(drive); |
1da177e4 | 1763 | |
5a3ea3b4 | 1764 | /* set correct block size */ |
1da177e4 LT |
1765 | blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE); |
1766 | ||
1da177e4 | 1767 | if (ide_cdrom_register(drive, nslots)) { |
fc8323f7 | 1768 | printk(KERN_ERR PFX "%s: %s failed to register device with the" |
83c8565d | 1769 | " cdrom driver.\n", drive->name, __func__); |
4fe67178 | 1770 | cd->devinfo.handle = NULL; |
1da177e4 LT |
1771 | return 1; |
1772 | } | |
1e874f44 BZ |
1773 | |
1774 | ide_proc_register_driver(drive, cd->driver); | |
1da177e4 LT |
1775 | return 0; |
1776 | } | |
1777 | ||
4031bbe4 | 1778 | static void ide_cd_remove(ide_drive_t *drive) |
1da177e4 LT |
1779 | { |
1780 | struct cdrom_info *info = drive->driver_data; | |
1781 | ||
088b1b88 | 1782 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1783 | |
7662d046 | 1784 | ide_proc_unregister_driver(drive, info->driver); |
8fed4368 | 1785 | device_del(&info->dev); |
1da177e4 LT |
1786 | del_gendisk(info->disk); |
1787 | ||
8fed4368 BZ |
1788 | mutex_lock(&idecd_ref_mutex); |
1789 | put_device(&info->dev); | |
1790 | mutex_unlock(&idecd_ref_mutex); | |
1da177e4 LT |
1791 | } |
1792 | ||
8fed4368 | 1793 | static void ide_cd_release(struct device *dev) |
1da177e4 | 1794 | { |
8fed4368 | 1795 | struct cdrom_info *info = to_ide_drv(dev, cdrom_info); |
1da177e4 LT |
1796 | struct cdrom_device_info *devinfo = &info->devinfo; |
1797 | ide_drive_t *drive = info->drive; | |
1798 | struct gendisk *g = info->disk; | |
1799 | ||
088b1b88 | 1800 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1801 | |
6044ec88 | 1802 | kfree(info->toc); |
0a0c4114 AM |
1803 | if (devinfo->handle == drive) |
1804 | unregister_cdrom(devinfo); | |
1da177e4 LT |
1805 | drive->driver_data = NULL; |
1806 | blk_queue_prep_rq(drive->queue, NULL); | |
1807 | g->private_data = NULL; | |
1808 | put_disk(g); | |
1809 | kfree(info); | |
1810 | } | |
1811 | ||
4031bbe4 | 1812 | static int ide_cd_probe(ide_drive_t *); |
1da177e4 | 1813 | |
7f3c868b | 1814 | static struct ide_driver ide_cdrom_driver = { |
8604affd | 1815 | .gen_driver = { |
4ef3b8f4 | 1816 | .owner = THIS_MODULE, |
8604affd BZ |
1817 | .name = "ide-cdrom", |
1818 | .bus = &ide_bus_type, | |
8604affd | 1819 | }, |
4031bbe4 RK |
1820 | .probe = ide_cd_probe, |
1821 | .remove = ide_cd_remove, | |
1da177e4 | 1822 | .version = IDECD_VERSION, |
99384aea | 1823 | .do_request = ide_cd_do_request, |
7662d046 | 1824 | #ifdef CONFIG_IDE_PROC_FS |
79cb3803 BZ |
1825 | .proc_entries = ide_cd_proc_entries, |
1826 | .proc_devsets = ide_cd_proc_devsets, | |
7662d046 | 1827 | #endif |
1da177e4 LT |
1828 | }; |
1829 | ||
488ca606 | 1830 | static int idecd_open(struct block_device *bdev, fmode_t mode) |
1da177e4 | 1831 | { |
488ca606 | 1832 | struct cdrom_info *info = ide_cd_get(bdev->bd_disk); |
1da177e4 LT |
1833 | int rc = -ENOMEM; |
1834 | ||
9ce70fb2 | 1835 | if (!info) |
1da177e4 LT |
1836 | return -ENXIO; |
1837 | ||
488ca606 | 1838 | rc = cdrom_open(&info->devinfo, bdev, mode); |
1da177e4 LT |
1839 | |
1840 | if (rc < 0) | |
1841 | ide_cd_put(info); | |
1842 | ||
1843 | return rc; | |
1844 | } | |
1845 | ||
488ca606 | 1846 | static int idecd_release(struct gendisk *disk, fmode_t mode) |
1da177e4 | 1847 | { |
5aeddf90 | 1848 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1849 | |
488ca606 | 1850 | cdrom_release(&info->devinfo, mode); |
1da177e4 LT |
1851 | |
1852 | ide_cd_put(info); | |
1853 | ||
1854 | return 0; | |
1855 | } | |
1856 | ||
6a2900b6 CH |
1857 | static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
1858 | { | |
1859 | struct packet_command cgc; | |
1860 | char buffer[16]; | |
1861 | int stat; | |
1862 | char spindown; | |
1863 | ||
1864 | if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) | |
1865 | return -EFAULT; | |
1866 | ||
1867 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1868 | ||
1869 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1870 | if (stat) | |
1871 | return stat; | |
1872 | ||
1873 | buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); | |
1874 | return cdrom_mode_select(cdi, &cgc); | |
1875 | } | |
1876 | ||
1877 | static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) | |
1878 | { | |
1879 | struct packet_command cgc; | |
1880 | char buffer[16]; | |
1881 | int stat; | |
9ce70fb2 | 1882 | char spindown; |
6a2900b6 CH |
1883 | |
1884 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1885 | ||
1886 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1887 | if (stat) | |
1888 | return stat; | |
1889 | ||
1890 | spindown = buffer[11] & 0x0f; | |
9ce70fb2 | 1891 | if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) |
6a2900b6 CH |
1892 | return -EFAULT; |
1893 | return 0; | |
1894 | } | |
1895 | ||
488ca606 | 1896 | static int idecd_ioctl(struct block_device *bdev, fmode_t mode, |
1da177e4 LT |
1897 | unsigned int cmd, unsigned long arg) |
1898 | { | |
5aeddf90 | 1899 | struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info); |
1da177e4 LT |
1900 | int err; |
1901 | ||
6a2900b6 | 1902 | switch (cmd) { |
9ce70fb2 | 1903 | case CDROMSETSPINDOWN: |
6a2900b6 | 1904 | return idecd_set_spindown(&info->devinfo, arg); |
9ce70fb2 | 1905 | case CDROMGETSPINDOWN: |
6a2900b6 CH |
1906 | return idecd_get_spindown(&info->devinfo, arg); |
1907 | default: | |
1908 | break; | |
9ce70fb2 | 1909 | } |
6a2900b6 | 1910 | |
1bddd9e6 | 1911 | err = generic_ide_ioctl(info->drive, bdev, cmd, arg); |
1da177e4 | 1912 | if (err == -EINVAL) |
488ca606 | 1913 | err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg); |
1da177e4 LT |
1914 | |
1915 | return err; | |
1916 | } | |
1917 | ||
1918 | static int idecd_media_changed(struct gendisk *disk) | |
1919 | { | |
5aeddf90 | 1920 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 LT |
1921 | return cdrom_media_changed(&info->devinfo); |
1922 | } | |
1923 | ||
1924 | static int idecd_revalidate_disk(struct gendisk *disk) | |
1925 | { | |
5aeddf90 | 1926 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1927 | struct request_sense sense; |
139c829d BZ |
1928 | |
1929 | ide_cd_read_toc(info->drive, &sense); | |
1930 | ||
1da177e4 LT |
1931 | return 0; |
1932 | } | |
1933 | ||
1934 | static struct block_device_operations idecd_ops = { | |
9ce70fb2 | 1935 | .owner = THIS_MODULE, |
488ca606 AV |
1936 | .open = idecd_open, |
1937 | .release = idecd_release, | |
1938 | .locked_ioctl = idecd_ioctl, | |
9ce70fb2 PC |
1939 | .media_changed = idecd_media_changed, |
1940 | .revalidate_disk = idecd_revalidate_disk | |
1da177e4 LT |
1941 | }; |
1942 | ||
5a3ea3b4 | 1943 | /* module options */ |
35d9b17f BP |
1944 | static unsigned long debug_mask; |
1945 | module_param(debug_mask, ulong, 0644); | |
1946 | ||
1da177e4 LT |
1947 | MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); |
1948 | ||
4031bbe4 | 1949 | static int ide_cd_probe(ide_drive_t *drive) |
1da177e4 LT |
1950 | { |
1951 | struct cdrom_info *info; | |
1952 | struct gendisk *g; | |
1953 | struct request_sense sense; | |
1954 | ||
088b1b88 BP |
1955 | ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x", |
1956 | drive->driver_req, drive->media); | |
fc8323f7 | 1957 | |
1da177e4 LT |
1958 | if (!strstr("ide-cdrom", drive->driver_req)) |
1959 | goto failed; | |
2a924662 | 1960 | |
1da177e4 LT |
1961 | if (drive->media != ide_cdrom && drive->media != ide_optical) |
1962 | goto failed; | |
2a924662 | 1963 | |
35d9b17f | 1964 | drive->debug_mask = debug_mask; |
d6251d44 | 1965 | drive->irq_handler = cdrom_newpc_intr; |
35d9b17f | 1966 | |
f5e3c2fa | 1967 | info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); |
1da177e4 | 1968 | if (info == NULL) { |
fc8323f7 | 1969 | printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n", |
83c8565d | 1970 | drive->name); |
1da177e4 LT |
1971 | goto failed; |
1972 | } | |
1973 | ||
1974 | g = alloc_disk(1 << PARTN_BITS); | |
1975 | if (!g) | |
1976 | goto out_free_cd; | |
1977 | ||
1978 | ide_init_disk(g, drive); | |
1979 | ||
8fed4368 BZ |
1980 | info->dev.parent = &drive->gendev; |
1981 | info->dev.release = ide_cd_release; | |
1982 | dev_set_name(&info->dev, dev_name(&drive->gendev)); | |
1983 | ||
1984 | if (device_register(&info->dev)) | |
1985 | goto out_free_disk; | |
1da177e4 LT |
1986 | |
1987 | info->drive = drive; | |
1988 | info->driver = &ide_cdrom_driver; | |
1989 | info->disk = g; | |
1990 | ||
1991 | g->private_data = &info->driver; | |
1992 | ||
1993 | drive->driver_data = info; | |
1994 | ||
1da177e4 | 1995 | g->minors = 1; |
1da177e4 LT |
1996 | g->driverfs_dev = &drive->gendev; |
1997 | g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; | |
1998 | if (ide_cdrom_setup(drive)) { | |
8fed4368 | 1999 | put_device(&info->dev); |
1da177e4 LT |
2000 | goto failed; |
2001 | } | |
1da177e4 | 2002 | |
139c829d | 2003 | ide_cd_read_toc(drive, &sense); |
1da177e4 LT |
2004 | g->fops = &idecd_ops; |
2005 | g->flags |= GENHD_FL_REMOVABLE; | |
2006 | add_disk(g); | |
2007 | return 0; | |
2008 | ||
8fed4368 BZ |
2009 | out_free_disk: |
2010 | put_disk(g); | |
1da177e4 LT |
2011 | out_free_cd: |
2012 | kfree(info); | |
2013 | failed: | |
8604affd | 2014 | return -ENODEV; |
1da177e4 LT |
2015 | } |
2016 | ||
2017 | static void __exit ide_cdrom_exit(void) | |
2018 | { | |
8604affd | 2019 | driver_unregister(&ide_cdrom_driver.gen_driver); |
1da177e4 | 2020 | } |
17514e8a BZ |
2021 | |
2022 | static int __init ide_cdrom_init(void) | |
1da177e4 | 2023 | { |
fc8323f7 | 2024 | printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n"); |
8604affd | 2025 | return driver_register(&ide_cdrom_driver.gen_driver); |
1da177e4 LT |
2026 | } |
2027 | ||
263756ec | 2028 | MODULE_ALIAS("ide:*m-cdrom*"); |
972560fb | 2029 | MODULE_ALIAS("ide-cd"); |
1da177e4 LT |
2030 | module_init(ide_cdrom_init); |
2031 | module_exit(ide_cdrom_exit); | |
2032 | MODULE_LICENSE("GPL"); |