Commit | Line | Data |
---|---|---|
1da177e4 | 1 | /* |
3bb4663b | 2 | * ATAPI CD-ROM driver. |
1da177e4 | 3 | * |
59bca8cc BZ |
4 | * Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov> |
5 | * Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org> | |
6 | * Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de> | |
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. ;-) | |
15 | * For those wishing to work on this driver, please be sure you download | |
9ce70fb2 PC |
16 | * and comply with the latest Mt. Fuji (SFF8090 version 4) and ATAPI |
17 | * (SFF-8020i rev 2.6) standards. These documents can be obtained by | |
1da177e4 LT |
18 | * anonymous ftp from: |
19 | * ftp://fission.dt.wdc.com/pub/standards/SFF_atapi/spec/SFF8020-r2.6/PS/8020r26.ps | |
20 | * ftp://ftp.avc-pioneer.com/Mtfuji4/Spec/Fuji4r10.pdf | |
21 | * | |
03553353 BZ |
22 | * For historical changelog please see: |
23 | * Documentation/ide/ChangeLog.ide-cd.1994-2004 | |
24 | */ | |
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 | |
9ce70fb2 | 55 | #define to_ide_cd(obj) container_of(obj, struct cdrom_info, kref) |
1da177e4 LT |
56 | |
57 | #define ide_cd_g(disk) \ | |
58 | container_of((disk)->private_data, struct cdrom_info, driver) | |
59 | ||
60 | static struct cdrom_info *ide_cd_get(struct gendisk *disk) | |
61 | { | |
62 | struct cdrom_info *cd = NULL; | |
63 | ||
cf8b8975 | 64 | mutex_lock(&idecd_ref_mutex); |
1da177e4 LT |
65 | cd = ide_cd_g(disk); |
66 | if (cd) | |
67 | kref_get(&cd->kref); | |
cf8b8975 | 68 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
69 | return cd; |
70 | } | |
71 | ||
72 | static void ide_cd_release(struct kref *); | |
73 | ||
74 | static void ide_cd_put(struct cdrom_info *cd) | |
75 | { | |
cf8b8975 | 76 | mutex_lock(&idecd_ref_mutex); |
1da177e4 | 77 | kref_put(&cd->kref, ide_cd_release); |
cf8b8975 | 78 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
79 | } |
80 | ||
5a3ea3b4 | 81 | /* |
1da177e4 LT |
82 | * Generic packet command support and error handling routines. |
83 | */ | |
84 | ||
5a3ea3b4 | 85 | /* Mark that we've seen a media change and invalidate our internal buffers. */ |
9ce70fb2 | 86 | static void cdrom_saw_media_change(ide_drive_t *drive) |
1da177e4 | 87 | { |
0ba11211 BZ |
88 | struct cdrom_info *cd = drive->driver_data; |
89 | ||
2bc4cf2d BZ |
90 | cd->cd_flags |= IDE_CD_FLAG_MEDIA_CHANGED; |
91 | cd->cd_flags &= ~IDE_CD_FLAG_TOC_VALID; | |
1da177e4 LT |
92 | } |
93 | ||
94 | static int cdrom_log_sense(ide_drive_t *drive, struct request *rq, | |
95 | struct request_sense *sense) | |
96 | { | |
97 | int log = 0; | |
98 | ||
4aff5e23 | 99 | if (!sense || !rq || (rq->cmd_flags & REQ_QUIET)) |
1da177e4 LT |
100 | return 0; |
101 | ||
102 | switch (sense->sense_key) { | |
9ce70fb2 PC |
103 | case NO_SENSE: |
104 | case RECOVERED_ERROR: | |
105 | break; | |
106 | case NOT_READY: | |
107 | /* | |
5a3ea3b4 BP |
108 | * don't care about tray state messages for e.g. capacity |
109 | * commands or in-progress or becoming ready | |
9ce70fb2 PC |
110 | */ |
111 | if (sense->asc == 0x3a || sense->asc == 0x04) | |
1da177e4 | 112 | break; |
9ce70fb2 PC |
113 | log = 1; |
114 | break; | |
115 | case ILLEGAL_REQUEST: | |
116 | /* | |
5a3ea3b4 BP |
117 | * don't log START_STOP unit with LoEj set, since we cannot |
118 | * reliably check if drive can auto-close | |
9ce70fb2 PC |
119 | */ |
120 | if (rq->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24) | |
1da177e4 | 121 | break; |
9ce70fb2 PC |
122 | log = 1; |
123 | break; | |
124 | case UNIT_ATTENTION: | |
125 | /* | |
5a3ea3b4 BP |
126 | * Make good and sure we've seen this potential media change. |
127 | * Some drives (i.e. Creative) fail to present the correct sense | |
128 | * key in the error register. | |
9ce70fb2 PC |
129 | */ |
130 | cdrom_saw_media_change(drive); | |
131 | break; | |
132 | default: | |
133 | log = 1; | |
134 | break; | |
1da177e4 LT |
135 | } |
136 | return log; | |
137 | } | |
138 | ||
e5e076a3 | 139 | static void cdrom_analyze_sense_data(ide_drive_t *drive, |
1da177e4 LT |
140 | struct request *failed_command, |
141 | struct request_sense *sense) | |
142 | { | |
dbe217af AC |
143 | unsigned long sector; |
144 | unsigned long bio_sectors; | |
dbe217af AC |
145 | struct cdrom_info *info = drive->driver_data; |
146 | ||
1da177e4 LT |
147 | if (!cdrom_log_sense(drive, failed_command, sense)) |
148 | return; | |
149 | ||
150 | /* | |
5a3ea3b4 BP |
151 | * If a read toc is executed for a CD-R or CD-RW medium where the first |
152 | * toc has not been recorded yet, it will fail with 05/24/00 (which is a | |
153 | * confusing error) | |
1da177e4 LT |
154 | */ |
155 | if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP) | |
156 | if (sense->sense_key == 0x05 && sense->asc == 0x24) | |
157 | return; | |
158 | ||
5a3ea3b4 BP |
159 | /* current error */ |
160 | if (sense->error_code == 0x70) { | |
9ce70fb2 | 161 | switch (sense->sense_key) { |
dbe217af AC |
162 | case MEDIUM_ERROR: |
163 | case VOLUME_OVERFLOW: | |
164 | case ILLEGAL_REQUEST: | |
165 | if (!sense->valid) | |
166 | break; | |
167 | if (failed_command == NULL || | |
168 | !blk_fs_request(failed_command)) | |
169 | break; | |
170 | sector = (sense->information[0] << 24) | | |
171 | (sense->information[1] << 16) | | |
172 | (sense->information[2] << 8) | | |
173 | (sense->information[3]); | |
174 | ||
dbe217af | 175 | if (drive->queue->hardsect_size == 2048) |
5a3ea3b4 BP |
176 | /* device sector size is 2K */ |
177 | sector <<= 2; | |
eee49298 RK |
178 | |
179 | bio_sectors = max(bio_sectors(failed_command->bio), 4U); | |
9ce70fb2 | 180 | sector &= ~(bio_sectors - 1); |
dbe217af | 181 | |
dbe217af | 182 | if (sector < get_capacity(info->disk) && |
e5e076a3 | 183 | drive->probed_capacity - sector < 4 * 75) |
dbe217af | 184 | set_capacity(info->disk, sector); |
9ce70fb2 PC |
185 | } |
186 | } | |
1da177e4 | 187 | |
972560fb | 188 | ide_cd_log_error(drive->name, failed_command, sense); |
1da177e4 LT |
189 | } |
190 | ||
5a3ea3b4 | 191 | /* Initialize a ide-cd packet command request */ |
17802998 | 192 | void ide_cd_init_rq(ide_drive_t *drive, struct request *rq) |
1da177e4 LT |
193 | { |
194 | struct cdrom_info *cd = drive->driver_data; | |
195 | ||
196 | ide_init_drive_cmd(rq); | |
cea2885a | 197 | rq->cmd_type = REQ_TYPE_ATA_PC; |
1da177e4 LT |
198 | rq->rq_disk = cd->disk; |
199 | } | |
200 | ||
201 | static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, | |
202 | struct request *failed_command) | |
203 | { | |
204 | struct cdrom_info *info = drive->driver_data; | |
205 | struct request *rq = &info->request_sense_request; | |
206 | ||
207 | if (sense == NULL) | |
208 | sense = &info->sense_data; | |
209 | ||
210 | /* stuff the sense request in front of our current request */ | |
139c829d | 211 | ide_cd_init_rq(drive, rq); |
1da177e4 LT |
212 | |
213 | rq->data = sense; | |
214 | rq->cmd[0] = GPCMD_REQUEST_SENSE; | |
e5e076a3 BP |
215 | rq->cmd[4] = 18; |
216 | rq->data_len = 18; | |
1da177e4 | 217 | |
4aff5e23 | 218 | rq->cmd_type = REQ_TYPE_SENSE; |
1da177e4 LT |
219 | |
220 | /* NOTE! Save the failed command in "rq->buffer" */ | |
221 | rq->buffer = (void *) failed_command; | |
222 | ||
223 | (void) ide_do_drive_cmd(drive, rq, ide_preempt); | |
224 | } | |
225 | ||
9ce70fb2 | 226 | static void cdrom_end_request(ide_drive_t *drive, int uptodate) |
1da177e4 LT |
227 | { |
228 | struct request *rq = HWGROUP(drive)->rq; | |
229 | int nsectors = rq->hard_cur_sectors; | |
230 | ||
4aff5e23 | 231 | if (blk_sense_request(rq) && uptodate) { |
1da177e4 | 232 | /* |
4aff5e23 JA |
233 | * For REQ_TYPE_SENSE, "rq->buffer" points to the original |
234 | * failed request | |
1da177e4 LT |
235 | */ |
236 | struct request *failed = (struct request *) rq->buffer; | |
237 | struct cdrom_info *info = drive->driver_data; | |
238 | void *sense = &info->sense_data; | |
239 | unsigned long flags; | |
240 | ||
241 | if (failed) { | |
242 | if (failed->sense) { | |
243 | sense = failed->sense; | |
244 | failed->sense_len = rq->sense_len; | |
245 | } | |
dbe217af | 246 | cdrom_analyze_sense_data(drive, failed, sense); |
1da177e4 | 247 | /* |
5a3ea3b4 | 248 | * now end the failed request |
1da177e4 | 249 | */ |
dbe217af AC |
250 | if (blk_fs_request(failed)) { |
251 | if (ide_end_dequeued_request(drive, failed, 0, | |
252 | failed->hard_nr_sectors)) | |
253 | BUG(); | |
254 | } else { | |
255 | spin_lock_irqsave(&ide_lock, flags); | |
5e36bb6e KU |
256 | if (__blk_end_request(failed, -EIO, |
257 | failed->data_len)) | |
258 | BUG(); | |
dbe217af AC |
259 | spin_unlock_irqrestore(&ide_lock, flags); |
260 | } | |
261 | } else | |
262 | cdrom_analyze_sense_data(drive, NULL, sense); | |
1da177e4 LT |
263 | } |
264 | ||
265 | if (!rq->current_nr_sectors && blk_fs_request(rq)) | |
266 | uptodate = 1; | |
267 | /* make sure it's fully ended */ | |
268 | if (blk_pc_request(rq)) | |
269 | nsectors = (rq->data_len + 511) >> 9; | |
270 | if (!nsectors) | |
271 | nsectors = 1; | |
272 | ||
273 | ide_end_request(drive, uptodate, nsectors); | |
274 | } | |
275 | ||
83c8565d | 276 | static void ide_dump_status_no_sense(ide_drive_t *drive, const char *msg, u8 st) |
dbe217af | 277 | { |
83c8565d | 278 | if (st & 0x80) |
dbe217af | 279 | return; |
83c8565d | 280 | ide_dump_status(drive, msg, st); |
dbe217af AC |
281 | } |
282 | ||
5a3ea3b4 BP |
283 | /* |
284 | * Returns: | |
285 | * 0: if the request should be continued. | |
286 | * 1: if the request was ended. | |
287 | */ | |
1da177e4 LT |
288 | static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) |
289 | { | |
290 | struct request *rq = HWGROUP(drive)->rq; | |
291 | int stat, err, sense_key; | |
9ce70fb2 | 292 | |
5a3ea3b4 | 293 | /* check for errors */ |
c47137a9 BZ |
294 | stat = ide_read_status(drive); |
295 | ||
1da177e4 LT |
296 | if (stat_ret) |
297 | *stat_ret = stat; | |
298 | ||
299 | if (OK_STAT(stat, good_stat, BAD_R_STAT)) | |
300 | return 0; | |
301 | ||
5a3ea3b4 | 302 | /* get the IDE error register */ |
64a57fe4 | 303 | err = ide_read_error(drive); |
1da177e4 LT |
304 | sense_key = err >> 4; |
305 | ||
306 | if (rq == NULL) { | |
e5e076a3 BP |
307 | printk(KERN_ERR "%s: missing rq in %s\n", |
308 | drive->name, __func__); | |
1da177e4 LT |
309 | return 1; |
310 | } | |
311 | ||
4aff5e23 | 312 | if (blk_sense_request(rq)) { |
5a3ea3b4 BP |
313 | /* |
314 | * We got an error trying to get sense info from the drive | |
315 | * (probably while trying to recover from a former error). | |
316 | * Just give up. | |
317 | */ | |
4aff5e23 | 318 | rq->cmd_flags |= REQ_FAILED; |
1da177e4 LT |
319 | cdrom_end_request(drive, 0); |
320 | ide_error(drive, "request sense failure", stat); | |
321 | return 1; | |
322 | ||
8770c018 | 323 | } else if (blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) { |
1da177e4 | 324 | /* All other functions, except for READ. */ |
1da177e4 LT |
325 | |
326 | /* | |
327 | * if we have an error, pass back CHECK_CONDITION as the | |
328 | * scsi status byte | |
329 | */ | |
b7156731 | 330 | if (blk_pc_request(rq) && !rq->errors) |
1da177e4 LT |
331 | rq->errors = SAM_STAT_CHECK_CONDITION; |
332 | ||
5a3ea3b4 | 333 | /* check for tray open */ |
1da177e4 | 334 | if (sense_key == NOT_READY) { |
9ce70fb2 | 335 | cdrom_saw_media_change(drive); |
1da177e4 | 336 | } else if (sense_key == UNIT_ATTENTION) { |
5a3ea3b4 | 337 | /* check for media change */ |
9ce70fb2 | 338 | cdrom_saw_media_change(drive); |
1da177e4 | 339 | return 0; |
9ce70fb2 PC |
340 | } else if (sense_key == ILLEGAL_REQUEST && |
341 | rq->cmd[0] == GPCMD_START_STOP_UNIT) { | |
342 | /* | |
343 | * Don't print error message for this condition-- | |
344 | * SFF8090i indicates that 5/24/00 is the correct | |
345 | * response to a request to close the tray if the | |
346 | * drive doesn't have that capability. | |
347 | * cdrom_log_sense() knows this! | |
348 | */ | |
4aff5e23 | 349 | } else if (!(rq->cmd_flags & REQ_QUIET)) { |
5a3ea3b4 | 350 | /* otherwise, print an error */ |
1da177e4 LT |
351 | ide_dump_status(drive, "packet command error", stat); |
352 | } | |
9ce70fb2 | 353 | |
4aff5e23 | 354 | rq->cmd_flags |= REQ_FAILED; |
1da177e4 LT |
355 | |
356 | /* | |
357 | * instead of playing games with moving completions around, | |
358 | * remove failed request completely and end it when the | |
359 | * request sense has completed | |
360 | */ | |
bbb89e3d | 361 | goto end_request; |
1da177e4 LT |
362 | |
363 | } else if (blk_fs_request(rq)) { | |
364 | int do_end_request = 0; | |
365 | ||
5a3ea3b4 | 366 | /* handle errors from READ and WRITE requests */ |
1da177e4 LT |
367 | |
368 | if (blk_noretry_request(rq)) | |
369 | do_end_request = 1; | |
370 | ||
371 | if (sense_key == NOT_READY) { | |
5a3ea3b4 | 372 | /* tray open */ |
1da177e4 | 373 | if (rq_data_dir(rq) == READ) { |
9ce70fb2 | 374 | cdrom_saw_media_change(drive); |
1da177e4 | 375 | |
5a3ea3b4 | 376 | /* fail the request */ |
e5e076a3 | 377 | printk(KERN_ERR "%s: tray open\n", drive->name); |
1da177e4 LT |
378 | do_end_request = 1; |
379 | } else { | |
380 | struct cdrom_info *info = drive->driver_data; | |
381 | ||
5a3ea3b4 BP |
382 | /* |
383 | * Allow the drive 5 seconds to recover, some | |
1da177e4 | 384 | * devices will return this error while flushing |
5a3ea3b4 BP |
385 | * data from cache. |
386 | */ | |
1da177e4 | 387 | if (!rq->errors) |
83c8565d BP |
388 | info->write_timeout = jiffies + |
389 | ATAPI_WAIT_WRITE_BUSY; | |
1da177e4 LT |
390 | rq->errors = 1; |
391 | if (time_after(jiffies, info->write_timeout)) | |
392 | do_end_request = 1; | |
393 | else { | |
394 | unsigned long flags; | |
395 | ||
396 | /* | |
5a3ea3b4 BP |
397 | * take a breather relying on the unplug |
398 | * timer to kick us again | |
1da177e4 LT |
399 | */ |
400 | spin_lock_irqsave(&ide_lock, flags); | |
401 | blk_plug_device(drive->queue); | |
83c8565d BP |
402 | spin_unlock_irqrestore(&ide_lock, |
403 | flags); | |
1da177e4 LT |
404 | return 1; |
405 | } | |
406 | } | |
407 | } else if (sense_key == UNIT_ATTENTION) { | |
5a3ea3b4 | 408 | /* media change */ |
e5e076a3 | 409 | cdrom_saw_media_change(drive); |
1da177e4 | 410 | |
9ce70fb2 | 411 | /* |
5a3ea3b4 BP |
412 | * Arrange to retry the request but be sure to give up |
413 | * if we've retried too many times. | |
9ce70fb2 | 414 | */ |
1da177e4 LT |
415 | if (++rq->errors > ERROR_MAX) |
416 | do_end_request = 1; | |
417 | } else if (sense_key == ILLEGAL_REQUEST || | |
418 | sense_key == DATA_PROTECT) { | |
9ce70fb2 | 419 | /* |
5a3ea3b4 BP |
420 | * No point in retrying after an illegal request or data |
421 | * protect error. | |
9ce70fb2 PC |
422 | */ |
423 | ide_dump_status_no_sense(drive, "command error", stat); | |
1da177e4 LT |
424 | do_end_request = 1; |
425 | } else if (sense_key == MEDIUM_ERROR) { | |
9ce70fb2 PC |
426 | /* |
427 | * No point in re-trying a zillion times on a bad | |
5a3ea3b4 | 428 | * sector. If we got here the error is not correctable. |
9ce70fb2 | 429 | */ |
83c8565d BP |
430 | ide_dump_status_no_sense(drive, |
431 | "media error (bad sector)", | |
432 | stat); | |
1da177e4 LT |
433 | do_end_request = 1; |
434 | } else if (sense_key == BLANK_CHECK) { | |
5a3ea3b4 | 435 | /* disk appears blank ?? */ |
83c8565d BP |
436 | ide_dump_status_no_sense(drive, "media error (blank)", |
437 | stat); | |
1da177e4 LT |
438 | do_end_request = 1; |
439 | } else if ((err & ~ABRT_ERR) != 0) { | |
5a3ea3b4 | 440 | /* go to the default handler for other errors */ |
1da177e4 LT |
441 | ide_error(drive, "cdrom_decode_status", stat); |
442 | return 1; | |
443 | } else if ((++rq->errors > ERROR_MAX)) { | |
5a3ea3b4 | 444 | /* we've racked up too many retries, abort */ |
1da177e4 LT |
445 | do_end_request = 1; |
446 | } | |
447 | ||
5a3ea3b4 BP |
448 | /* |
449 | * End a request through request sense analysis when we have | |
450 | * sense data. We need this in order to perform end of media | |
451 | * processing. | |
452 | */ | |
bbb89e3d BZ |
453 | if (do_end_request) |
454 | goto end_request; | |
dbe217af | 455 | |
bbb89e3d | 456 | /* |
5a3ea3b4 BP |
457 | * If we got a CHECK_CONDITION status, queue |
458 | * a request sense command. | |
bbb89e3d BZ |
459 | */ |
460 | if (stat & ERR_STAT) | |
461 | cdrom_queue_request_sense(drive, NULL, NULL); | |
1da177e4 LT |
462 | } else { |
463 | blk_dump_rq_flags(rq, "ide-cd: bad rq"); | |
464 | cdrom_end_request(drive, 0); | |
465 | } | |
466 | ||
5a3ea3b4 | 467 | /* retry, or handle the next request */ |
1da177e4 | 468 | return 1; |
bbb89e3d BZ |
469 | |
470 | end_request: | |
471 | if (stat & ERR_STAT) { | |
472 | unsigned long flags; | |
473 | ||
474 | spin_lock_irqsave(&ide_lock, flags); | |
475 | blkdev_dequeue_request(rq); | |
476 | HWGROUP(drive)->rq = NULL; | |
477 | spin_unlock_irqrestore(&ide_lock, flags); | |
478 | ||
479 | cdrom_queue_request_sense(drive, rq->sense, rq); | |
480 | } else | |
481 | cdrom_end_request(drive, 0); | |
482 | ||
483 | return 1; | |
1da177e4 LT |
484 | } |
485 | ||
486 | static int cdrom_timer_expiry(ide_drive_t *drive) | |
487 | { | |
488 | struct request *rq = HWGROUP(drive)->rq; | |
489 | unsigned long wait = 0; | |
490 | ||
491 | /* | |
5a3ea3b4 BP |
492 | * Some commands are *slow* and normally take a long time to complete. |
493 | * Usually we can use the ATAPI "disconnect" to bypass this, but not all | |
494 | * commands/drives support that. Let ide_timer_expiry keep polling us | |
495 | * for these. | |
1da177e4 LT |
496 | */ |
497 | switch (rq->cmd[0]) { | |
9ce70fb2 PC |
498 | case GPCMD_BLANK: |
499 | case GPCMD_FORMAT_UNIT: | |
500 | case GPCMD_RESERVE_RZONE_TRACK: | |
501 | case GPCMD_CLOSE_TRACK: | |
502 | case GPCMD_FLUSH_CACHE: | |
503 | wait = ATAPI_WAIT_PC; | |
504 | break; | |
505 | default: | |
506 | if (!(rq->cmd_flags & REQ_QUIET)) | |
83c8565d BP |
507 | printk(KERN_INFO "ide-cd: cmd 0x%x timed out\n", |
508 | rq->cmd[0]); | |
9ce70fb2 PC |
509 | wait = 0; |
510 | break; | |
1da177e4 LT |
511 | } |
512 | return wait; | |
513 | } | |
514 | ||
5a3ea3b4 BP |
515 | /* |
516 | * Set up the device registers for transferring a packet command on DEV, | |
517 | * expecting to later transfer XFERLEN bytes. HANDLER is the routine | |
518 | * which actually transfers the command to the drive. If this is a | |
519 | * drq_interrupt device, this routine will arrange for HANDLER to be | |
520 | * called when the interrupt from the drive arrives. Otherwise, HANDLER | |
521 | * will be called immediately after the drive is prepared for the transfer. | |
522 | */ | |
1da177e4 LT |
523 | static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive, |
524 | int xferlen, | |
525 | ide_handler_t *handler) | |
526 | { | |
527 | ide_startstop_t startstop; | |
528 | struct cdrom_info *info = drive->driver_data; | |
529 | ide_hwif_t *hwif = drive->hwif; | |
530 | ||
5a3ea3b4 | 531 | /* wait for the controller to be idle */ |
1da177e4 LT |
532 | if (ide_wait_stat(&startstop, drive, 0, BUSY_STAT, WAIT_READY)) |
533 | return startstop; | |
534 | ||
3a6a3549 | 535 | /* FIXME: for Virtual DMA we must check harder */ |
1da177e4 | 536 | if (info->dma) |
5e37bdc0 | 537 | info->dma = !hwif->dma_ops->dma_setup(drive); |
1da177e4 | 538 | |
5a3ea3b4 | 539 | /* set up the controller registers */ |
2fc57388 BZ |
540 | ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL | |
541 | IDE_TFLAG_NO_SELECT_MASK, xferlen, info->dma); | |
4fe67178 | 542 | |
2bc4cf2d | 543 | if (info->cd_flags & IDE_CD_FLAG_DRQ_INTERRUPT) { |
f0dd8712 AL |
544 | /* waiting for CDB interrupt, not DMA yet. */ |
545 | if (info->dma) | |
546 | drive->waiting_for_dma = 0; | |
547 | ||
1da177e4 | 548 | /* packet command */ |
83c8565d BP |
549 | ide_execute_command(drive, WIN_PACKETCMD, handler, |
550 | ATAPI_WAIT_PC, cdrom_timer_expiry); | |
1da177e4 LT |
551 | return ide_started; |
552 | } else { | |
1fc14258 | 553 | ide_execute_pkt_cmd(drive); |
1da177e4 LT |
554 | |
555 | return (*handler) (drive); | |
556 | } | |
557 | } | |
558 | ||
5a3ea3b4 BP |
559 | /* |
560 | * Send a packet command to DRIVE described by CMD_BUF and CMD_LEN. The device | |
561 | * registers must have already been prepared by cdrom_start_packet_command. | |
562 | * HANDLER is the interrupt handler to call when the command completes or | |
563 | * there's data ready. | |
564 | */ | |
1da177e4 | 565 | #define ATAPI_MIN_CDB_BYTES 12 |
9ce70fb2 | 566 | static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive, |
1da177e4 LT |
567 | struct request *rq, |
568 | ide_handler_t *handler) | |
569 | { | |
570 | ide_hwif_t *hwif = drive->hwif; | |
571 | int cmd_len; | |
572 | struct cdrom_info *info = drive->driver_data; | |
573 | ide_startstop_t startstop; | |
574 | ||
2bc4cf2d | 575 | if (info->cd_flags & IDE_CD_FLAG_DRQ_INTERRUPT) { |
5a3ea3b4 BP |
576 | /* |
577 | * Here we should have been called after receiving an interrupt | |
578 | * from the device. DRQ should how be set. | |
579 | */ | |
1da177e4 | 580 | |
5a3ea3b4 | 581 | /* check for errors */ |
1da177e4 LT |
582 | if (cdrom_decode_status(drive, DRQ_STAT, NULL)) |
583 | return ide_stopped; | |
f0dd8712 | 584 | |
5a3ea3b4 | 585 | /* ok, next interrupt will be DMA interrupt */ |
f0dd8712 AL |
586 | if (info->dma) |
587 | drive->waiting_for_dma = 1; | |
1da177e4 | 588 | } else { |
5a3ea3b4 | 589 | /* otherwise, we must wait for DRQ to get set */ |
1da177e4 LT |
590 | if (ide_wait_stat(&startstop, drive, DRQ_STAT, |
591 | BUSY_STAT, WAIT_READY)) | |
592 | return startstop; | |
593 | } | |
594 | ||
5a3ea3b4 | 595 | /* arm the interrupt handler */ |
1da177e4 LT |
596 | ide_set_handler(drive, handler, rq->timeout, cdrom_timer_expiry); |
597 | ||
598 | /* ATAPI commands get padded out to 12 bytes minimum */ | |
599 | cmd_len = COMMAND_SIZE(rq->cmd[0]); | |
600 | if (cmd_len < ATAPI_MIN_CDB_BYTES) | |
601 | cmd_len = ATAPI_MIN_CDB_BYTES; | |
602 | ||
5a3ea3b4 | 603 | /* send the command to the device */ |
9567b349 | 604 | hwif->output_data(drive, NULL, rq->cmd, cmd_len); |
1da177e4 | 605 | |
5a3ea3b4 | 606 | /* start the DMA if need be */ |
1da177e4 | 607 | if (info->dma) |
5e37bdc0 | 608 | hwif->dma_ops->dma_start(drive); |
1da177e4 LT |
609 | |
610 | return ide_started; | |
611 | } | |
612 | ||
5a3ea3b4 | 613 | /* |
1da177e4 LT |
614 | * Block read functions. |
615 | */ | |
5a5222d9 BZ |
616 | static void ide_cd_pad_transfer(ide_drive_t *drive, xfer_func_t *xf, int len) |
617 | { | |
618 | while (len > 0) { | |
619 | int dum = 0; | |
9567b349 | 620 | xf(drive, NULL, &dum, sizeof(dum)); |
5a5222d9 BZ |
621 | len -= sizeof(dum); |
622 | } | |
623 | } | |
624 | ||
b4ab726c BZ |
625 | static void ide_cd_drain_data(ide_drive_t *drive, int nsects) |
626 | { | |
627 | while (nsects > 0) { | |
628 | static char dum[SECTOR_SIZE]; | |
629 | ||
9567b349 | 630 | drive->hwif->input_data(drive, NULL, dum, sizeof(dum)); |
b4ab726c BZ |
631 | nsects--; |
632 | } | |
633 | } | |
634 | ||
1da177e4 LT |
635 | /* |
636 | * Check the contents of the interrupt reason register from the cdrom | |
637 | * and attempt to recover if there are problems. Returns 0 if everything's | |
638 | * ok; nonzero if the request has been terminated. | |
639 | */ | |
9f10d9ee BZ |
640 | static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, |
641 | int len, int ireason, int rw) | |
1da177e4 | 642 | { |
0d6f7e3a BZ |
643 | /* |
644 | * ireason == 0: the drive wants to receive data from us | |
645 | * ireason == 2: the drive is expecting to transfer data to us | |
646 | */ | |
647 | if (ireason == (!rw << 1)) | |
1da177e4 | 648 | return 0; |
0d6f7e3a | 649 | else if (ireason == (rw << 1)) { |
5a5222d9 | 650 | ide_hwif_t *hwif = drive->hwif; |
0d6f7e3a | 651 | xfer_func_t *xf; |
5a5222d9 | 652 | |
5a3ea3b4 | 653 | /* whoops... */ |
35379c07 | 654 | printk(KERN_ERR "%s: %s: wrong transfer direction!\n", |
177773ed | 655 | drive->name, __func__); |
1da177e4 | 656 | |
9567b349 | 657 | xf = rw ? hwif->output_data : hwif->input_data; |
0d6f7e3a BZ |
658 | ide_cd_pad_transfer(drive, xf, len); |
659 | } else if (rw == 0 && ireason == 1) { | |
5a3ea3b4 BP |
660 | /* |
661 | * Some drives (ASUS) seem to tell us that status info is | |
662 | * available. Just get it and ignore. | |
1da177e4 | 663 | */ |
c47137a9 | 664 | (void)ide_read_status(drive); |
1da177e4 LT |
665 | return 0; |
666 | } else { | |
5a3ea3b4 | 667 | /* drive wants a command packet, or invalid ireason... */ |
35379c07 | 668 | printk(KERN_ERR "%s: %s: bad interrupt reason 0x%02x\n", |
177773ed | 669 | drive->name, __func__, ireason); |
1da177e4 LT |
670 | } |
671 | ||
9f10d9ee BZ |
672 | if (rq->cmd_type == REQ_TYPE_ATA_PC) |
673 | rq->cmd_flags |= REQ_FAILED; | |
674 | ||
1da177e4 LT |
675 | cdrom_end_request(drive, 0); |
676 | return -1; | |
677 | } | |
678 | ||
64814f23 BZ |
679 | /* |
680 | * Assume that the drive will always provide data in multiples of at least | |
681 | * SECTOR_SIZE, as it gets hairy to keep track of the transfers otherwise. | |
682 | */ | |
683 | static int ide_cd_check_transfer_size(ide_drive_t *drive, int len) | |
684 | { | |
685 | struct cdrom_info *cd = drive->driver_data; | |
686 | ||
687 | if ((len % SECTOR_SIZE) == 0) | |
688 | return 0; | |
689 | ||
690 | printk(KERN_ERR "%s: %s: Bad transfer size %d\n", | |
177773ed | 691 | drive->name, __func__, len); |
64814f23 BZ |
692 | |
693 | if (cd->cd_flags & IDE_CD_FLAG_LIMIT_NFRAMES) | |
694 | printk(KERN_ERR " This drive is not supported by " | |
695 | "this version of the driver\n"); | |
696 | else { | |
697 | printk(KERN_ERR " Trying to limit transfer sizes\n"); | |
698 | cd->cd_flags |= IDE_CD_FLAG_LIMIT_NFRAMES; | |
699 | } | |
700 | ||
701 | return 1; | |
702 | } | |
703 | ||
0041e7c6 | 704 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *); |
94f5a86d | 705 | |
1da177e4 | 706 | /* |
5a3ea3b4 BP |
707 | * Routine to send a read/write packet command to the drive. This is usually |
708 | * called directly from cdrom_start_{read,write}(). However, for drq_interrupt | |
709 | * devices, it is called from an interrupt when the drive is ready to accept | |
710 | * the command. | |
1da177e4 | 711 | */ |
29f3aaca | 712 | static ide_startstop_t cdrom_start_rw_cont(ide_drive_t *drive) |
1da177e4 LT |
713 | { |
714 | struct request *rq = HWGROUP(drive)->rq; | |
1da177e4 | 715 | |
29f3aaca BZ |
716 | if (rq_data_dir(rq) == READ) { |
717 | unsigned short sectors_per_frame = | |
718 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
719 | int nskip = rq->sector & (sectors_per_frame - 1); | |
1da177e4 | 720 | |
29f3aaca BZ |
721 | /* |
722 | * If the requested sector doesn't start on a frame boundary, | |
723 | * we must adjust the start of the transfer so that it does, | |
724 | * and remember to skip the first few sectors. | |
725 | * | |
726 | * If the rq->current_nr_sectors field is larger than the size | |
727 | * of the buffer, it will mean that we're to skip a number of | |
728 | * sectors equal to the amount by which rq->current_nr_sectors | |
729 | * is larger than the buffer size. | |
730 | */ | |
731 | if (nskip > 0) { | |
5a3ea3b4 | 732 | /* sanity check... */ |
29f3aaca BZ |
733 | if (rq->current_nr_sectors != |
734 | bio_cur_sectors(rq->bio)) { | |
735 | printk(KERN_ERR "%s: %s: buffer botch (%u)\n", | |
177773ed | 736 | drive->name, __func__, |
29f3aaca BZ |
737 | rq->current_nr_sectors); |
738 | cdrom_end_request(drive, 0); | |
739 | return ide_stopped; | |
740 | } | |
741 | rq->current_nr_sectors += nskip; | |
1da177e4 | 742 | } |
1da177e4 | 743 | } |
29f3aaca BZ |
744 | #if 0 |
745 | else | |
746 | /* the immediate bit */ | |
747 | rq->cmd[1] = 1 << 3; | |
748 | #endif | |
5a3ea3b4 | 749 | /* set up the command */ |
1da177e4 LT |
750 | rq->timeout = ATAPI_WAIT_PC; |
751 | ||
5a3ea3b4 | 752 | /* send the command to the drive and return */ |
0041e7c6 | 753 | return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr); |
1da177e4 LT |
754 | } |
755 | ||
1da177e4 LT |
756 | #define IDECD_SEEK_THRESHOLD (1000) /* 1000 blocks */ |
757 | #define IDECD_SEEK_TIMER (5 * WAIT_MIN_SLEEP) /* 100 ms */ | |
758 | #define IDECD_SEEK_TIMEOUT (2 * WAIT_CMD) /* 20 sec */ | |
759 | ||
9ce70fb2 | 760 | static ide_startstop_t cdrom_seek_intr(ide_drive_t *drive) |
1da177e4 LT |
761 | { |
762 | struct cdrom_info *info = drive->driver_data; | |
763 | int stat; | |
764 | static int retry = 10; | |
765 | ||
766 | if (cdrom_decode_status(drive, 0, &stat)) | |
767 | return ide_stopped; | |
4fe67178 | 768 | |
2bc4cf2d | 769 | info->cd_flags |= IDE_CD_FLAG_SEEKING; |
1da177e4 LT |
770 | |
771 | if (retry && time_after(jiffies, info->start_seek + IDECD_SEEK_TIMER)) { | |
5a3ea3b4 | 772 | if (--retry == 0) |
1da177e4 | 773 | drive->dsc_overlap = 0; |
1da177e4 LT |
774 | } |
775 | return ide_stopped; | |
776 | } | |
777 | ||
9ce70fb2 | 778 | static ide_startstop_t cdrom_start_seek_continuation(ide_drive_t *drive) |
1da177e4 LT |
779 | { |
780 | struct request *rq = HWGROUP(drive)->rq; | |
781 | sector_t frame = rq->sector; | |
782 | ||
783 | sector_div(frame, queue_hardsect_size(drive->queue) >> SECTOR_BITS); | |
784 | ||
d34c87e4 | 785 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
786 | rq->cmd[0] = GPCMD_SEEK; |
787 | put_unaligned(cpu_to_be32(frame), (unsigned int *) &rq->cmd[2]); | |
788 | ||
789 | rq->timeout = ATAPI_WAIT_PC; | |
790 | return cdrom_transfer_packet_command(drive, rq, &cdrom_seek_intr); | |
791 | } | |
792 | ||
9ce70fb2 | 793 | static ide_startstop_t cdrom_start_seek(ide_drive_t *drive, unsigned int block) |
1da177e4 LT |
794 | { |
795 | struct cdrom_info *info = drive->driver_data; | |
796 | ||
797 | info->dma = 0; | |
1da177e4 | 798 | info->start_seek = jiffies; |
83c8565d BP |
799 | return cdrom_start_packet_command(drive, 0, |
800 | cdrom_start_seek_continuation); | |
1da177e4 LT |
801 | } |
802 | ||
9ce70fb2 | 803 | /* |
5a3ea3b4 BP |
804 | * Fix up a possibly partially-processed request so that we can start it over |
805 | * entirely, or even put it back on the request queue. | |
9ce70fb2 PC |
806 | */ |
807 | static void restore_request(struct request *rq) | |
1da177e4 LT |
808 | { |
809 | if (rq->buffer != bio_data(rq->bio)) { | |
83c8565d BP |
810 | sector_t n = |
811 | (rq->buffer - (char *)bio_data(rq->bio)) / SECTOR_SIZE; | |
1da177e4 LT |
812 | |
813 | rq->buffer = bio_data(rq->bio); | |
814 | rq->nr_sectors += n; | |
815 | rq->sector -= n; | |
816 | } | |
83c8565d BP |
817 | rq->current_nr_sectors = bio_cur_sectors(rq->bio); |
818 | rq->hard_cur_sectors = rq->current_nr_sectors; | |
1da177e4 LT |
819 | rq->hard_nr_sectors = rq->nr_sectors; |
820 | rq->hard_sector = rq->sector; | |
821 | rq->q->prep_rq_fn(rq->q, rq); | |
822 | } | |
823 | ||
5a3ea3b4 BP |
824 | /* |
825 | * All other packet commands. | |
1da177e4 | 826 | */ |
8ee69f5a BZ |
827 | static void ide_cd_request_sense_fixup(struct request *rq) |
828 | { | |
829 | /* | |
830 | * Some of the trailing request sense fields are optional, | |
831 | * and some drives don't send them. Sigh. | |
832 | */ | |
833 | if (rq->cmd[0] == GPCMD_REQUEST_SENSE && | |
834 | rq->data_len > 0 && rq->data_len <= 5) | |
835 | while (rq->data_len > 0) { | |
836 | *(u8 *)rq->data++ = 0; | |
837 | --rq->data_len; | |
838 | } | |
839 | } | |
840 | ||
17802998 | 841 | int ide_cd_queue_pc(ide_drive_t *drive, struct request *rq) |
1da177e4 LT |
842 | { |
843 | struct request_sense sense; | |
844 | int retries = 10; | |
4aff5e23 | 845 | unsigned int flags = rq->cmd_flags; |
1da177e4 LT |
846 | |
847 | if (rq->sense == NULL) | |
848 | rq->sense = &sense; | |
849 | ||
5a3ea3b4 | 850 | /* start of retry loop */ |
1da177e4 LT |
851 | do { |
852 | int error; | |
853 | unsigned long time = jiffies; | |
4aff5e23 | 854 | rq->cmd_flags = flags; |
1da177e4 LT |
855 | |
856 | error = ide_do_drive_cmd(drive, rq, ide_wait); | |
857 | time = jiffies - time; | |
858 | ||
5a3ea3b4 BP |
859 | /* |
860 | * FIXME: we should probably abort/retry or something in case of | |
861 | * failure. | |
862 | */ | |
4aff5e23 | 863 | if (rq->cmd_flags & REQ_FAILED) { |
5a3ea3b4 BP |
864 | /* |
865 | * The request failed. Retry if it was due to a unit | |
866 | * attention status (usually means media was changed). | |
867 | */ | |
1da177e4 LT |
868 | struct request_sense *reqbuf = rq->sense; |
869 | ||
870 | if (reqbuf->sense_key == UNIT_ATTENTION) | |
871 | cdrom_saw_media_change(drive); | |
872 | else if (reqbuf->sense_key == NOT_READY && | |
873 | reqbuf->asc == 4 && reqbuf->ascq != 4) { | |
5a3ea3b4 BP |
874 | /* |
875 | * The drive is in the process of loading | |
876 | * a disk. Retry, but wait a little to give | |
877 | * the drive time to complete the load. | |
878 | */ | |
1da177e4 LT |
879 | ssleep(2); |
880 | } else { | |
5a3ea3b4 | 881 | /* otherwise, don't retry */ |
1da177e4 LT |
882 | retries = 0; |
883 | } | |
884 | --retries; | |
885 | } | |
886 | ||
5a3ea3b4 | 887 | /* end of retry loop */ |
4aff5e23 | 888 | } while ((rq->cmd_flags & REQ_FAILED) && retries >= 0); |
1da177e4 | 889 | |
5a3ea3b4 | 890 | /* return an error if the command failed */ |
4aff5e23 | 891 | return (rq->cmd_flags & REQ_FAILED) ? -EIO : 0; |
1da177e4 LT |
892 | } |
893 | ||
aaa04c28 | 894 | /* |
5a3ea3b4 BP |
895 | * Called from blk_end_request_callback() after the data of the request is |
896 | * completed and before the request itself is completed. By returning value '1', | |
897 | * blk_end_request_callback() returns immediately without completing it. | |
aaa04c28 KU |
898 | */ |
899 | static int cdrom_newpc_intr_dummy_cb(struct request *rq) | |
900 | { | |
901 | return 1; | |
902 | } | |
903 | ||
1da177e4 LT |
904 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) |
905 | { | |
23579a2a | 906 | ide_hwif_t *hwif = drive->hwif; |
1da177e4 LT |
907 | struct cdrom_info *info = drive->driver_data; |
908 | struct request *rq = HWGROUP(drive)->rq; | |
1da177e4 | 909 | xfer_func_t *xferfunc; |
0041e7c6 | 910 | ide_expiry_t *expiry = NULL; |
ff1bfbc1 BZ |
911 | int dma_error = 0, dma, stat, ireason, len, thislen, uptodate = 0; |
912 | int write = (rq_data_dir(rq) == WRITE) ? 1 : 0; | |
913 | unsigned int timeout; | |
914 | u8 lowcyl, highcyl; | |
1da177e4 | 915 | |
5a3ea3b4 | 916 | /* check for errors */ |
1da177e4 LT |
917 | dma = info->dma; |
918 | if (dma) { | |
919 | info->dma = 0; | |
5e37bdc0 | 920 | dma_error = hwif->dma_ops->dma_end(drive); |
eba15fba BZ |
921 | if (dma_error) { |
922 | printk(KERN_ERR "%s: DMA %s error\n", drive->name, | |
ff1bfbc1 | 923 | write ? "write" : "read"); |
eba15fba BZ |
924 | ide_dma_off(drive); |
925 | } | |
1da177e4 LT |
926 | } |
927 | ||
928 | if (cdrom_decode_status(drive, 0, &stat)) | |
929 | return ide_stopped; | |
930 | ||
5a3ea3b4 | 931 | /* using dma, transfer is complete now */ |
1da177e4 | 932 | if (dma) { |
eba15fba | 933 | if (dma_error) |
1da177e4 | 934 | return ide_error(drive, "dma error", stat); |
0041e7c6 BZ |
935 | if (blk_fs_request(rq)) { |
936 | ide_end_request(drive, 1, rq->nr_sectors); | |
937 | return ide_stopped; | |
938 | } | |
ff1bfbc1 | 939 | goto end_request; |
1da177e4 LT |
940 | } |
941 | ||
5a3ea3b4 | 942 | /* ok we fall to pio :/ */ |
4c3032d8 BZ |
943 | ireason = hwif->INB(hwif->io_ports.nsect_addr) & 0x3; |
944 | lowcyl = hwif->INB(hwif->io_ports.lbam_addr); | |
945 | highcyl = hwif->INB(hwif->io_ports.lbah_addr); | |
1da177e4 LT |
946 | |
947 | len = lowcyl + (256 * highcyl); | |
0041e7c6 BZ |
948 | |
949 | thislen = blk_fs_request(rq) ? len : rq->data_len; | |
1da177e4 LT |
950 | if (thislen > len) |
951 | thislen = len; | |
952 | ||
5a3ea3b4 | 953 | /* If DRQ is clear, the command has completed. */ |
aaa04c28 | 954 | if ((stat & DRQ_STAT) == 0) { |
0041e7c6 BZ |
955 | if (blk_fs_request(rq)) { |
956 | /* | |
957 | * If we're not done reading/writing, complain. | |
958 | * Otherwise, complete the command normally. | |
959 | */ | |
960 | uptodate = 1; | |
961 | if (rq->current_nr_sectors > 0) { | |
962 | printk(KERN_ERR "%s: %s: data underrun " | |
963 | "(%d blocks)\n", | |
177773ed | 964 | drive->name, __func__, |
0041e7c6 BZ |
965 | rq->current_nr_sectors); |
966 | if (!write) | |
967 | rq->cmd_flags |= REQ_FAILED; | |
968 | uptodate = 0; | |
969 | } | |
970 | cdrom_end_request(drive, uptodate); | |
971 | return ide_stopped; | |
972 | } else if (!blk_pc_request(rq)) { | |
ff1bfbc1 | 973 | ide_cd_request_sense_fixup(rq); |
5a3ea3b4 | 974 | /* complain if we still have data left to transfer */ |
ff1bfbc1 BZ |
975 | uptodate = rq->data_len ? 0 : 1; |
976 | } | |
977 | goto end_request; | |
aaa04c28 | 978 | } |
1da177e4 | 979 | |
5a3ea3b4 | 980 | /* check which way to transfer data */ |
9f10d9ee BZ |
981 | if (ide_cd_check_ireason(drive, rq, len, ireason, write)) |
982 | return ide_stopped; | |
0041e7c6 | 983 | |
9f10d9ee BZ |
984 | if (blk_fs_request(rq)) { |
985 | if (write == 0) { | |
0041e7c6 BZ |
986 | int nskip; |
987 | ||
988 | if (ide_cd_check_transfer_size(drive, len)) { | |
989 | cdrom_end_request(drive, 0); | |
990 | return ide_stopped; | |
991 | } | |
992 | ||
993 | /* | |
994 | * First, figure out if we need to bit-bucket | |
995 | * any of the leading sectors. | |
996 | */ | |
997 | nskip = min_t(int, rq->current_nr_sectors | |
998 | - bio_cur_sectors(rq->bio), | |
999 | thislen >> 9); | |
1000 | if (nskip > 0) { | |
1001 | ide_cd_drain_data(drive, nskip); | |
1002 | rq->current_nr_sectors -= nskip; | |
1003 | thislen -= (nskip << 9); | |
1004 | } | |
1005 | } | |
ff1bfbc1 | 1006 | } |
1da177e4 | 1007 | |
ff1bfbc1 BZ |
1008 | if (ireason == 0) { |
1009 | write = 1; | |
9567b349 | 1010 | xferfunc = hwif->output_data; |
9f10d9ee | 1011 | } else { |
ff1bfbc1 | 1012 | write = 0; |
9567b349 | 1013 | xferfunc = hwif->input_data; |
1da177e4 LT |
1014 | } |
1015 | ||
5a3ea3b4 | 1016 | /* transfer data */ |
1da177e4 | 1017 | while (thislen > 0) { |
0041e7c6 | 1018 | u8 *ptr = blk_fs_request(rq) ? NULL : rq->data; |
a11e77db | 1019 | int blen = rq->data_len; |
1da177e4 | 1020 | |
5a3ea3b4 | 1021 | /* bio backed? */ |
1da177e4 | 1022 | if (rq->bio) { |
0041e7c6 BZ |
1023 | if (blk_fs_request(rq)) { |
1024 | ptr = rq->buffer; | |
1025 | blen = rq->current_nr_sectors << 9; | |
1026 | } else { | |
1027 | ptr = bio_data(rq->bio); | |
1028 | blen = bio_iovec(rq->bio)->bv_len; | |
1029 | } | |
1da177e4 LT |
1030 | } |
1031 | ||
1032 | if (!ptr) { | |
0041e7c6 BZ |
1033 | if (blk_fs_request(rq) && !write) |
1034 | /* | |
968c4964 | 1035 | * If the buffers are full, pipe the rest into |
5a3ea3b4 BP |
1036 | * oblivion. |
1037 | */ | |
968c4964 | 1038 | ide_cd_drain_data(drive, thislen >> 9); |
0041e7c6 BZ |
1039 | else { |
1040 | printk(KERN_ERR "%s: confused, missing data\n", | |
1041 | drive->name); | |
1042 | blk_dump_rq_flags(rq, rq_data_dir(rq) | |
1043 | ? "cdrom_newpc_intr, write" | |
1044 | : "cdrom_newpc_intr, read"); | |
1045 | } | |
1da177e4 LT |
1046 | break; |
1047 | } | |
1048 | ||
1049 | if (blen > thislen) | |
1050 | blen = thislen; | |
1051 | ||
9567b349 | 1052 | xferfunc(drive, NULL, ptr, blen); |
1da177e4 LT |
1053 | |
1054 | thislen -= blen; | |
1055 | len -= blen; | |
1da177e4 | 1056 | |
0041e7c6 BZ |
1057 | if (blk_fs_request(rq)) { |
1058 | rq->buffer += blen; | |
1059 | rq->nr_sectors -= (blen >> 9); | |
1060 | rq->current_nr_sectors -= (blen >> 9); | |
1061 | rq->sector += (blen >> 9); | |
1062 | ||
1063 | if (rq->current_nr_sectors == 0 && rq->nr_sectors) | |
1064 | cdrom_end_request(drive, 1); | |
1065 | } else { | |
1066 | rq->data_len -= blen; | |
1067 | ||
aaa04c28 KU |
1068 | /* |
1069 | * The request can't be completed until DRQ is cleared. | |
1070 | * So complete the data, but don't complete the request | |
1071 | * using the dummy function for the callback feature | |
1072 | * of blk_end_request_callback(). | |
1073 | */ | |
0041e7c6 BZ |
1074 | if (rq->bio) |
1075 | blk_end_request_callback(rq, 0, blen, | |
aaa04c28 | 1076 | cdrom_newpc_intr_dummy_cb); |
0041e7c6 BZ |
1077 | else |
1078 | rq->data += blen; | |
1079 | } | |
bcd88ac3 AS |
1080 | if (!write && blk_sense_request(rq)) |
1081 | rq->sense_len += blen; | |
1da177e4 LT |
1082 | } |
1083 | ||
5a3ea3b4 | 1084 | /* pad, if necessary */ |
0041e7c6 | 1085 | if (!blk_fs_request(rq) && len > 0) |
5a5222d9 | 1086 | ide_cd_pad_transfer(drive, xferfunc, len); |
1da177e4 | 1087 | |
ff1bfbc1 BZ |
1088 | if (blk_pc_request(rq)) { |
1089 | timeout = rq->timeout; | |
ff1bfbc1 BZ |
1090 | } else { |
1091 | timeout = ATAPI_WAIT_PC; | |
0041e7c6 BZ |
1092 | if (!blk_fs_request(rq)) |
1093 | expiry = cdrom_timer_expiry; | |
ff1bfbc1 BZ |
1094 | } |
1095 | ||
1096 | ide_set_handler(drive, cdrom_newpc_intr, timeout, expiry); | |
1da177e4 | 1097 | return ide_started; |
ff1bfbc1 BZ |
1098 | |
1099 | end_request: | |
1100 | if (blk_pc_request(rq)) { | |
1101 | unsigned long flags; | |
14e04c3f KU |
1102 | unsigned int dlen = rq->data_len; |
1103 | ||
1104 | if (dma) | |
1105 | rq->data_len = 0; | |
ff1bfbc1 BZ |
1106 | |
1107 | spin_lock_irqsave(&ide_lock, flags); | |
14e04c3f | 1108 | if (__blk_end_request(rq, 0, dlen)) |
ff1bfbc1 BZ |
1109 | BUG(); |
1110 | HWGROUP(drive)->rq = NULL; | |
1111 | spin_unlock_irqrestore(&ide_lock, flags); | |
1112 | } else { | |
1113 | if (!uptodate) | |
1114 | rq->cmd_flags |= REQ_FAILED; | |
1115 | cdrom_end_request(drive, uptodate); | |
1116 | } | |
1117 | return ide_stopped; | |
1da177e4 LT |
1118 | } |
1119 | ||
21ea1f0f | 1120 | static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) |
1da177e4 | 1121 | { |
21ea1f0f BZ |
1122 | struct cdrom_info *cd = drive->driver_data; |
1123 | int write = rq_data_dir(rq) == WRITE; | |
1124 | unsigned short sectors_per_frame = | |
1125 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
1da177e4 | 1126 | |
21ea1f0f | 1127 | if (write) { |
5a3ea3b4 | 1128 | /* disk has become write protected */ |
21ea1f0f BZ |
1129 | if (cd->disk->policy) { |
1130 | cdrom_end_request(drive, 0); | |
1131 | return ide_stopped; | |
1132 | } | |
1133 | } else { | |
1134 | /* | |
1135 | * We may be retrying this request after an error. Fix up any | |
1136 | * weirdness which might be present in the request packet. | |
1137 | */ | |
1138 | restore_request(rq); | |
1da177e4 LT |
1139 | } |
1140 | ||
5a3ea3b4 | 1141 | /* use DMA, if possible / writes *must* be hardware frame aligned */ |
21ea1f0f BZ |
1142 | if ((rq->nr_sectors & (sectors_per_frame - 1)) || |
1143 | (rq->sector & (sectors_per_frame - 1))) { | |
1144 | if (write) { | |
1145 | cdrom_end_request(drive, 0); | |
1146 | return ide_stopped; | |
1147 | } | |
1148 | cd->dma = 0; | |
1149 | } else | |
1150 | cd->dma = drive->using_dma; | |
1da177e4 | 1151 | |
21ea1f0f BZ |
1152 | if (write) |
1153 | cd->devinfo.media_written = 1; | |
1da177e4 | 1154 | |
5a3ea3b4 | 1155 | /* start sending the read/write request to the drive */ |
29f3aaca | 1156 | return cdrom_start_packet_command(drive, 32768, cdrom_start_rw_cont); |
1da177e4 LT |
1157 | } |
1158 | ||
1159 | static ide_startstop_t cdrom_do_newpc_cont(ide_drive_t *drive) | |
1160 | { | |
1161 | struct request *rq = HWGROUP(drive)->rq; | |
1162 | ||
1163 | if (!rq->timeout) | |
1164 | rq->timeout = ATAPI_WAIT_PC; | |
1165 | ||
1166 | return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr); | |
1167 | } | |
1168 | ||
1169 | static ide_startstop_t cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) | |
1170 | { | |
1171 | struct cdrom_info *info = drive->driver_data; | |
1172 | ||
c9f56a80 BZ |
1173 | if (blk_pc_request(rq)) |
1174 | rq->cmd_flags |= REQ_QUIET; | |
1175 | else | |
1176 | rq->cmd_flags &= ~REQ_FAILED; | |
1da177e4 LT |
1177 | |
1178 | info->dma = 0; | |
1da177e4 | 1179 | |
5a3ea3b4 | 1180 | /* sg request */ |
1da177e4 LT |
1181 | if (rq->bio) { |
1182 | int mask = drive->queue->dma_alignment; | |
83c8565d BP |
1183 | unsigned long addr = |
1184 | (unsigned long)page_address(bio_page(rq->bio)); | |
1da177e4 | 1185 | |
1da177e4 LT |
1186 | info->dma = drive->using_dma; |
1187 | ||
1188 | /* | |
1189 | * check if dma is safe | |
5d9e4ea5 LT |
1190 | * |
1191 | * NOTE! The "len" and "addr" checks should possibly have | |
1192 | * separate masks. | |
1da177e4 | 1193 | */ |
4e7c6816 | 1194 | if ((rq->data_len & 15) || (addr & mask)) |
1da177e4 LT |
1195 | info->dma = 0; |
1196 | } | |
1197 | ||
5a3ea3b4 | 1198 | /* start sending the command to the drive */ |
83c8565d BP |
1199 | return cdrom_start_packet_command(drive, rq->data_len, |
1200 | cdrom_do_newpc_cont); | |
1da177e4 LT |
1201 | } |
1202 | ||
5a3ea3b4 | 1203 | /* |
1da177e4 LT |
1204 | * cdrom driver request routine. |
1205 | */ | |
e5e076a3 BP |
1206 | static ide_startstop_t ide_do_rw_cdrom(ide_drive_t *drive, struct request *rq, |
1207 | sector_t block) | |
1da177e4 LT |
1208 | { |
1209 | ide_startstop_t action; | |
1210 | struct cdrom_info *info = drive->driver_data; | |
1211 | ||
1212 | if (blk_fs_request(rq)) { | |
2bc4cf2d | 1213 | if (info->cd_flags & IDE_CD_FLAG_SEEKING) { |
1da177e4 | 1214 | unsigned long elapsed = jiffies - info->start_seek; |
c47137a9 | 1215 | int stat = ide_read_status(drive); |
1da177e4 LT |
1216 | |
1217 | if ((stat & SEEK_STAT) != SEEK_STAT) { | |
1218 | if (elapsed < IDECD_SEEK_TIMEOUT) { | |
83c8565d BP |
1219 | ide_stall_queue(drive, |
1220 | IDECD_SEEK_TIMER); | |
1da177e4 LT |
1221 | return ide_stopped; |
1222 | } | |
83c8565d BP |
1223 | printk(KERN_ERR "%s: DSC timeout\n", |
1224 | drive->name); | |
1da177e4 | 1225 | } |
2bc4cf2d | 1226 | info->cd_flags &= ~IDE_CD_FLAG_SEEKING; |
1da177e4 | 1227 | } |
83c8565d BP |
1228 | if (rq_data_dir(rq) == READ && |
1229 | IDE_LARGE_SEEK(info->last_block, block, | |
1230 | IDECD_SEEK_THRESHOLD) && | |
1231 | drive->dsc_overlap) | |
1da177e4 | 1232 | action = cdrom_start_seek(drive, block); |
9ce70fb2 | 1233 | else |
21ea1f0f | 1234 | action = cdrom_start_rw(drive, rq); |
1da177e4 LT |
1235 | info->last_block = block; |
1236 | return action; | |
c9f56a80 | 1237 | } else if (blk_sense_request(rq) || blk_pc_request(rq) || |
cea2885a | 1238 | rq->cmd_type == REQ_TYPE_ATA_PC) { |
1da177e4 | 1239 | return cdrom_do_block_pc(drive, rq); |
4aff5e23 | 1240 | } else if (blk_special_request(rq)) { |
5a3ea3b4 | 1241 | /* right now this can only be a reset... */ |
1da177e4 LT |
1242 | cdrom_end_request(drive, 1); |
1243 | return ide_stopped; | |
1244 | } | |
1245 | ||
1246 | blk_dump_rq_flags(rq, "ide-cd bad flags"); | |
1247 | cdrom_end_request(drive, 0); | |
1248 | return ide_stopped; | |
1249 | } | |
1250 | ||
1251 | ||
1252 | ||
5a3ea3b4 | 1253 | /* |
1da177e4 LT |
1254 | * Ioctl handling. |
1255 | * | |
5a3ea3b4 BP |
1256 | * Routines which queue packet commands take as a final argument a pointer to a |
1257 | * request_sense struct. If execution of the command results in an error with a | |
1258 | * CHECK CONDITION status, this structure will be filled with the results of the | |
1259 | * subsequent request sense command. The pointer can also be NULL, in which case | |
1260 | * no sense information is returned. | |
1da177e4 | 1261 | */ |
e5e076a3 | 1262 | static void msf_from_bcd(struct atapi_msf *msf) |
1da177e4 | 1263 | { |
9a6dc668 BZ |
1264 | msf->minute = BCD2BIN(msf->minute); |
1265 | msf->second = BCD2BIN(msf->second); | |
1266 | msf->frame = BCD2BIN(msf->frame); | |
1da177e4 LT |
1267 | } |
1268 | ||
f9afd18b | 1269 | int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 LT |
1270 | { |
1271 | struct request req; | |
1272 | struct cdrom_info *info = drive->driver_data; | |
1273 | struct cdrom_device_info *cdi = &info->devinfo; | |
1274 | ||
139c829d | 1275 | ide_cd_init_rq(drive, &req); |
1da177e4 LT |
1276 | |
1277 | req.sense = sense; | |
1278 | req.cmd[0] = GPCMD_TEST_UNIT_READY; | |
4aff5e23 | 1279 | req.cmd_flags |= REQ_QUIET; |
1da177e4 | 1280 | |
cdf6000d | 1281 | /* |
5a3ea3b4 BP |
1282 | * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs |
1283 | * instead of supporting the LOAD_UNLOAD opcode. | |
cdf6000d | 1284 | */ |
1da177e4 | 1285 | req.cmd[7] = cdi->sanyo_slot % 3; |
1da177e4 | 1286 | |
139c829d | 1287 | return ide_cd_queue_pc(drive, &req); |
1da177e4 LT |
1288 | } |
1289 | ||
1da177e4 LT |
1290 | static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, |
1291 | unsigned long *sectors_per_frame, | |
1292 | struct request_sense *sense) | |
1293 | { | |
1294 | struct { | |
1295 | __u32 lba; | |
1296 | __u32 blocklen; | |
1297 | } capbuf; | |
1298 | ||
1299 | int stat; | |
1300 | struct request req; | |
1301 | ||
139c829d | 1302 | ide_cd_init_rq(drive, &req); |
1da177e4 LT |
1303 | |
1304 | req.sense = sense; | |
1305 | req.cmd[0] = GPCMD_READ_CDVD_CAPACITY; | |
1306 | req.data = (char *)&capbuf; | |
1307 | req.data_len = sizeof(capbuf); | |
4aff5e23 | 1308 | req.cmd_flags |= REQ_QUIET; |
1da177e4 | 1309 | |
139c829d | 1310 | stat = ide_cd_queue_pc(drive, &req); |
1da177e4 LT |
1311 | if (stat == 0) { |
1312 | *capacity = 1 + be32_to_cpu(capbuf.lba); | |
1313 | *sectors_per_frame = | |
1314 | be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS; | |
1315 | } | |
1316 | ||
1317 | return stat; | |
1318 | } | |
1319 | ||
1320 | static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, | |
1321 | int format, char *buf, int buflen, | |
1322 | struct request_sense *sense) | |
1323 | { | |
1324 | struct request req; | |
1325 | ||
139c829d | 1326 | ide_cd_init_rq(drive, &req); |
1da177e4 LT |
1327 | |
1328 | req.sense = sense; | |
1329 | req.data = buf; | |
1330 | req.data_len = buflen; | |
4aff5e23 | 1331 | req.cmd_flags |= REQ_QUIET; |
1da177e4 LT |
1332 | req.cmd[0] = GPCMD_READ_TOC_PMA_ATIP; |
1333 | req.cmd[6] = trackno; | |
1334 | req.cmd[7] = (buflen >> 8); | |
1335 | req.cmd[8] = (buflen & 0xff); | |
1336 | req.cmd[9] = (format << 6); | |
1337 | ||
1338 | if (msf_flag) | |
1339 | req.cmd[1] = 2; | |
1340 | ||
139c829d | 1341 | return ide_cd_queue_pc(drive, &req); |
1da177e4 LT |
1342 | } |
1343 | ||
1da177e4 | 1344 | /* Try to read the entire TOC for the disk into our internal buffer. */ |
17802998 | 1345 | int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 LT |
1346 | { |
1347 | int stat, ntracks, i; | |
1348 | struct cdrom_info *info = drive->driver_data; | |
1349 | struct cdrom_device_info *cdi = &info->devinfo; | |
1350 | struct atapi_toc *toc = info->toc; | |
1351 | struct { | |
1352 | struct atapi_toc_header hdr; | |
1353 | struct atapi_toc_entry ent; | |
1354 | } ms_tmp; | |
1355 | long last_written; | |
1356 | unsigned long sectors_per_frame = SECTORS_PER_FRAME; | |
1357 | ||
1358 | if (toc == NULL) { | |
5a3ea3b4 | 1359 | /* try to allocate space */ |
2a91f3e5 | 1360 | toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); |
1da177e4 | 1361 | if (toc == NULL) { |
83c8565d BP |
1362 | printk(KERN_ERR "%s: No cdrom TOC buffer!\n", |
1363 | drive->name); | |
1da177e4 LT |
1364 | return -ENOMEM; |
1365 | } | |
2a91f3e5 | 1366 | info->toc = toc; |
1da177e4 LT |
1367 | } |
1368 | ||
5a3ea3b4 BP |
1369 | /* |
1370 | * Check to see if the existing data is still valid. If it is, | |
1371 | * just return. | |
1372 | */ | |
1da177e4 LT |
1373 | (void) cdrom_check_status(drive, sense); |
1374 | ||
2bc4cf2d | 1375 | if (info->cd_flags & IDE_CD_FLAG_TOC_VALID) |
1da177e4 LT |
1376 | return 0; |
1377 | ||
5a3ea3b4 | 1378 | /* try to get the total cdrom capacity and sector size */ |
1da177e4 LT |
1379 | stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame, |
1380 | sense); | |
1381 | if (stat) | |
1382 | toc->capacity = 0x1fffff; | |
1383 | ||
1384 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
5a3ea3b4 | 1385 | /* save a private copy of the TOC capacity for error handling */ |
dbe217af AC |
1386 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1387 | ||
1da177e4 LT |
1388 | blk_queue_hardsect_size(drive->queue, |
1389 | sectors_per_frame << SECTOR_BITS); | |
1390 | ||
5a3ea3b4 | 1391 | /* first read just the header, so we know how long the TOC is */ |
1da177e4 LT |
1392 | stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, |
1393 | sizeof(struct atapi_toc_header), sense); | |
2a91f3e5 JJ |
1394 | if (stat) |
1395 | return stat; | |
1da177e4 | 1396 | |
2bc4cf2d | 1397 | if (info->cd_flags & IDE_CD_FLAG_TOCTRACKS_AS_BCD) { |
9a6dc668 BZ |
1398 | toc->hdr.first_track = BCD2BIN(toc->hdr.first_track); |
1399 | toc->hdr.last_track = BCD2BIN(toc->hdr.last_track); | |
1da177e4 | 1400 | } |
1da177e4 LT |
1401 | |
1402 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; | |
1403 | if (ntracks <= 0) | |
1404 | return -EIO; | |
1405 | if (ntracks > MAX_TRACKS) | |
1406 | ntracks = MAX_TRACKS; | |
1407 | ||
5a3ea3b4 | 1408 | /* now read the whole schmeer */ |
1da177e4 LT |
1409 | stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, |
1410 | (char *)&toc->hdr, | |
1411 | sizeof(struct atapi_toc_header) + | |
1412 | (ntracks + 1) * | |
1413 | sizeof(struct atapi_toc_entry), sense); | |
1414 | ||
1415 | if (stat && toc->hdr.first_track > 1) { | |
5a3ea3b4 BP |
1416 | /* |
1417 | * Cds with CDI tracks only don't have any TOC entries, despite | |
1418 | * of this the returned values are | |
1419 | * first_track == last_track = number of CDI tracks + 1, | |
1420 | * so that this case is indistinguishable from the same layout | |
1421 | * plus an additional audio track. If we get an error for the | |
1422 | * regular case, we assume a CDI without additional audio | |
1423 | * tracks. In this case the readable TOC is empty (CDI tracks | |
1424 | * are not included) and only holds the Leadout entry. | |
1425 | * | |
1426 | * Heiko Eißfeldt. | |
1427 | */ | |
1da177e4 LT |
1428 | ntracks = 0; |
1429 | stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, | |
1430 | (char *)&toc->hdr, | |
1431 | sizeof(struct atapi_toc_header) + | |
1432 | (ntracks + 1) * | |
1433 | sizeof(struct atapi_toc_entry), | |
1434 | sense); | |
cdf6000d | 1435 | if (stat) |
1da177e4 | 1436 | return stat; |
cdf6000d | 1437 | |
2bc4cf2d | 1438 | if (info->cd_flags & IDE_CD_FLAG_TOCTRACKS_AS_BCD) { |
9a6dc668 BZ |
1439 | toc->hdr.first_track = (u8)BIN2BCD(CDROM_LEADOUT); |
1440 | toc->hdr.last_track = (u8)BIN2BCD(CDROM_LEADOUT); | |
cdf6000d | 1441 | } else { |
1da177e4 LT |
1442 | toc->hdr.first_track = CDROM_LEADOUT; |
1443 | toc->hdr.last_track = CDROM_LEADOUT; | |
1444 | } | |
1445 | } | |
1446 | ||
1447 | if (stat) | |
1448 | return stat; | |
1449 | ||
7eb43fd2 | 1450 | toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); |
1da177e4 | 1451 | |
2bc4cf2d | 1452 | if (info->cd_flags & IDE_CD_FLAG_TOCTRACKS_AS_BCD) { |
9a6dc668 BZ |
1453 | toc->hdr.first_track = BCD2BIN(toc->hdr.first_track); |
1454 | toc->hdr.last_track = BCD2BIN(toc->hdr.last_track); | |
1da177e4 | 1455 | } |
1da177e4 | 1456 | |
cdf6000d | 1457 | for (i = 0; i <= ntracks; i++) { |
2bc4cf2d BZ |
1458 | if (info->cd_flags & IDE_CD_FLAG_TOCADDR_AS_BCD) { |
1459 | if (info->cd_flags & IDE_CD_FLAG_TOCTRACKS_AS_BCD) | |
9a6dc668 | 1460 | toc->ent[i].track = BCD2BIN(toc->ent[i].track); |
1da177e4 LT |
1461 | msf_from_bcd(&toc->ent[i].addr.msf); |
1462 | } | |
9ce70fb2 PC |
1463 | toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, |
1464 | toc->ent[i].addr.msf.second, | |
1465 | toc->ent[i].addr.msf.frame); | |
1da177e4 LT |
1466 | } |
1467 | ||
1da177e4 | 1468 | if (toc->hdr.first_track != CDROM_LEADOUT) { |
5a3ea3b4 | 1469 | /* read the multisession information */ |
1da177e4 LT |
1470 | stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, |
1471 | sizeof(ms_tmp), sense); | |
2a91f3e5 JJ |
1472 | if (stat) |
1473 | return stat; | |
1da177e4 LT |
1474 | |
1475 | toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); | |
1476 | } else { | |
e5e076a3 BP |
1477 | ms_tmp.hdr.last_track = CDROM_LEADOUT; |
1478 | ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; | |
1da177e4 LT |
1479 | toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ |
1480 | } | |
1481 | ||
2bc4cf2d | 1482 | if (info->cd_flags & IDE_CD_FLAG_TOCADDR_AS_BCD) { |
5a3ea3b4 | 1483 | /* re-read multisession information using MSF format */ |
1da177e4 LT |
1484 | stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, |
1485 | sizeof(ms_tmp), sense); | |
1486 | if (stat) | |
1487 | return stat; | |
1488 | ||
9ce70fb2 | 1489 | msf_from_bcd(&ms_tmp.ent.addr.msf); |
1da177e4 | 1490 | toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, |
9ce70fb2 | 1491 | ms_tmp.ent.addr.msf.second, |
1da177e4 LT |
1492 | ms_tmp.ent.addr.msf.frame); |
1493 | } | |
1da177e4 LT |
1494 | |
1495 | toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); | |
1496 | ||
5a3ea3b4 | 1497 | /* now try to get the total cdrom capacity */ |
1da177e4 LT |
1498 | stat = cdrom_get_last_written(cdi, &last_written); |
1499 | if (!stat && (last_written > toc->capacity)) { | |
1500 | toc->capacity = last_written; | |
1501 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
dbe217af | 1502 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1da177e4 LT |
1503 | } |
1504 | ||
1505 | /* Remember that we've read this stuff. */ | |
2bc4cf2d | 1506 | info->cd_flags |= IDE_CD_FLAG_TOC_VALID; |
1da177e4 LT |
1507 | |
1508 | return 0; | |
1509 | } | |
1510 | ||
17802998 | 1511 | int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) |
9235e68b EP |
1512 | { |
1513 | struct cdrom_info *info = drive->driver_data; | |
1514 | struct cdrom_device_info *cdi = &info->devinfo; | |
1515 | struct packet_command cgc; | |
455d80a9 | 1516 | int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; |
9235e68b | 1517 | |
e59724c7 | 1518 | if ((info->cd_flags & IDE_CD_FLAG_FULL_CAPS_PAGE) == 0) |
455d80a9 | 1519 | size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; |
9235e68b | 1520 | |
455d80a9 | 1521 | init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); |
5a3ea3b4 BP |
1522 | do { |
1523 | /* we seem to get stat=0x01,err=0x00 the first time (??) */ | |
9235e68b EP |
1524 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); |
1525 | if (!stat) | |
1526 | break; | |
1527 | } while (--attempts); | |
1528 | return stat; | |
1529 | } | |
1530 | ||
17802998 | 1531 | void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) |
9235e68b | 1532 | { |
4fe67178 | 1533 | struct cdrom_info *cd = drive->driver_data; |
481c8c64 BZ |
1534 | u16 curspeed, maxspeed; |
1535 | ||
455d80a9 BZ |
1536 | curspeed = *(u16 *)&buf[8 + 14]; |
1537 | maxspeed = *(u16 *)&buf[8 + 8]; | |
1538 | ||
e59724c7 | 1539 | if (cd->cd_flags & IDE_CD_FLAG_LE_SPEED_FIELDS) { |
455d80a9 BZ |
1540 | curspeed = le16_to_cpu(curspeed); |
1541 | maxspeed = le16_to_cpu(maxspeed); | |
9235e68b | 1542 | } else { |
455d80a9 BZ |
1543 | curspeed = be16_to_cpu(curspeed); |
1544 | maxspeed = be16_to_cpu(maxspeed); | |
9235e68b | 1545 | } |
481c8c64 | 1546 | |
2bc4cf2d BZ |
1547 | cd->current_speed = (curspeed + (176/2)) / 176; |
1548 | cd->max_speed = (maxspeed + (176/2)) / 176; | |
9235e68b EP |
1549 | } |
1550 | ||
20e7f7ef BZ |
1551 | #define IDE_CD_CAPABILITIES \ |
1552 | (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ | |
1553 | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ | |
1554 | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ | |
1555 | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ | |
1556 | CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) | |
1da177e4 | 1557 | |
1da177e4 LT |
1558 | static struct cdrom_device_ops ide_cdrom_dops = { |
1559 | .open = ide_cdrom_open_real, | |
1560 | .release = ide_cdrom_release_real, | |
1561 | .drive_status = ide_cdrom_drive_status, | |
1562 | .media_changed = ide_cdrom_check_media_change_real, | |
1563 | .tray_move = ide_cdrom_tray_move, | |
1564 | .lock_door = ide_cdrom_lock_door, | |
1565 | .select_speed = ide_cdrom_select_speed, | |
1566 | .get_last_session = ide_cdrom_get_last_session, | |
1567 | .get_mcn = ide_cdrom_get_mcn, | |
1568 | .reset = ide_cdrom_reset, | |
1569 | .audio_ioctl = ide_cdrom_audio_ioctl, | |
20e7f7ef | 1570 | .capability = IDE_CD_CAPABILITIES, |
1da177e4 LT |
1571 | .generic_packet = ide_cdrom_packet, |
1572 | }; | |
1573 | ||
9ce70fb2 | 1574 | static int ide_cdrom_register(ide_drive_t *drive, int nslots) |
1da177e4 LT |
1575 | { |
1576 | struct cdrom_info *info = drive->driver_data; | |
1577 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1578 | ||
1579 | devinfo->ops = &ide_cdrom_dops; | |
2bc4cf2d | 1580 | devinfo->speed = info->current_speed; |
1da177e4 | 1581 | devinfo->capacity = nslots; |
2a91f3e5 | 1582 | devinfo->handle = drive; |
1da177e4 | 1583 | strcpy(devinfo->name, drive->name); |
1da177e4 | 1584 | |
2bc4cf2d | 1585 | if (info->cd_flags & IDE_CD_FLAG_NO_SPEED_SELECT) |
3cbd814e BZ |
1586 | devinfo->mask |= CDC_SELECT_SPEED; |
1587 | ||
1da177e4 LT |
1588 | devinfo->disk = info->disk; |
1589 | return register_cdrom(devinfo); | |
1590 | } | |
1591 | ||
e5e076a3 | 1592 | static int ide_cdrom_probe_capabilities(ide_drive_t *drive) |
1da177e4 | 1593 | { |
4fe67178 BZ |
1594 | struct cdrom_info *cd = drive->driver_data; |
1595 | struct cdrom_device_info *cdi = &cd->devinfo; | |
455d80a9 BZ |
1596 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; |
1597 | mechtype_t mechtype; | |
1da177e4 LT |
1598 | int nslots = 1; |
1599 | ||
3f1b86d8 BZ |
1600 | cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | |
1601 | CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | | |
1602 | CDC_MO_DRIVE | CDC_RAM); | |
1603 | ||
1da177e4 | 1604 | if (drive->media == ide_optical) { |
3f1b86d8 | 1605 | cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); |
83c8565d BP |
1606 | printk(KERN_ERR "%s: ATAPI magneto-optical drive\n", |
1607 | drive->name); | |
1da177e4 LT |
1608 | return nslots; |
1609 | } | |
1610 | ||
e59724c7 | 1611 | if (cd->cd_flags & IDE_CD_FLAG_PRE_ATAPI12) { |
2bc4cf2d | 1612 | cd->cd_flags &= ~IDE_CD_FLAG_NO_EJECT; |
3f1b86d8 | 1613 | cdi->mask &= ~CDC_PLAY_AUDIO; |
1da177e4 LT |
1614 | return nslots; |
1615 | } | |
1616 | ||
1617 | /* | |
5a3ea3b4 BP |
1618 | * We have to cheat a little here. the packet will eventually be queued |
1619 | * with ide_cdrom_packet(), which extracts the drive from cdi->handle. | |
1620 | * Since this device hasn't been registered with the Uniform layer yet, | |
1621 | * it can't do this. Same goes for cdi->ops. | |
1da177e4 | 1622 | */ |
2a91f3e5 | 1623 | cdi->handle = drive; |
1da177e4 LT |
1624 | cdi->ops = &ide_cdrom_dops; |
1625 | ||
455d80a9 | 1626 | if (ide_cdrom_get_capabilities(drive, buf)) |
1da177e4 LT |
1627 | return 0; |
1628 | ||
455d80a9 | 1629 | if ((buf[8 + 6] & 0x01) == 0) |
2bc4cf2d | 1630 | cd->cd_flags |= IDE_CD_FLAG_NO_DOORLOCK; |
455d80a9 | 1631 | if (buf[8 + 6] & 0x08) |
2bc4cf2d | 1632 | cd->cd_flags &= ~IDE_CD_FLAG_NO_EJECT; |
455d80a9 | 1633 | if (buf[8 + 3] & 0x01) |
3f1b86d8 | 1634 | cdi->mask &= ~CDC_CD_R; |
455d80a9 | 1635 | if (buf[8 + 3] & 0x02) |
3f1b86d8 | 1636 | cdi->mask &= ~(CDC_CD_RW | CDC_RAM); |
455d80a9 | 1637 | if (buf[8 + 2] & 0x38) |
3f1b86d8 | 1638 | cdi->mask &= ~CDC_DVD; |
455d80a9 | 1639 | if (buf[8 + 3] & 0x20) |
3f1b86d8 | 1640 | cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); |
455d80a9 | 1641 | if (buf[8 + 3] & 0x10) |
3f1b86d8 | 1642 | cdi->mask &= ~CDC_DVD_R; |
e59724c7 | 1643 | if ((buf[8 + 4] & 0x01) || (cd->cd_flags & IDE_CD_FLAG_PLAY_AUDIO_OK)) |
3f1b86d8 | 1644 | cdi->mask &= ~CDC_PLAY_AUDIO; |
455d80a9 BZ |
1645 | |
1646 | mechtype = buf[8 + 6] >> 5; | |
1647 | if (mechtype == mechtype_caddy || mechtype == mechtype_popup) | |
3f1b86d8 | 1648 | cdi->mask |= CDC_CLOSE_TRAY; |
1da177e4 | 1649 | |
1da177e4 | 1650 | if (cdi->sanyo_slot > 0) { |
3f1b86d8 | 1651 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 | 1652 | nslots = 3; |
cdf6000d BZ |
1653 | } else if (mechtype == mechtype_individual_changer || |
1654 | mechtype == mechtype_cartridge_changer) { | |
2609d06d BZ |
1655 | nslots = cdrom_number_of_slots(cdi); |
1656 | if (nslots > 1) | |
3f1b86d8 | 1657 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 LT |
1658 | } |
1659 | ||
455d80a9 | 1660 | ide_cdrom_update_speed(drive, buf); |
4fe67178 | 1661 | |
1da177e4 | 1662 | printk(KERN_INFO "%s: ATAPI", drive->name); |
4fe67178 BZ |
1663 | |
1664 | /* don't print speed if the drive reported 0 */ | |
2bc4cf2d BZ |
1665 | if (cd->max_speed) |
1666 | printk(KERN_CONT " %dX", cd->max_speed); | |
4fe67178 | 1667 | |
3f1b86d8 | 1668 | printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); |
1da177e4 | 1669 | |
3f1b86d8 BZ |
1670 | if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) |
1671 | printk(KERN_CONT " DVD%s%s", | |
1672 | (cdi->mask & CDC_DVD_R) ? "" : "-R", | |
1673 | (cdi->mask & CDC_DVD_RAM) ? "" : "-RAM"); | |
1da177e4 | 1674 | |
3f1b86d8 BZ |
1675 | if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) |
1676 | printk(KERN_CONT " CD%s%s", | |
1677 | (cdi->mask & CDC_CD_R) ? "" : "-R", | |
1678 | (cdi->mask & CDC_CD_RW) ? "" : "/RW"); | |
1da177e4 | 1679 | |
3f1b86d8 BZ |
1680 | if ((cdi->mask & CDC_SELECT_DISC) == 0) |
1681 | printk(KERN_CONT " changer w/%d slots", nslots); | |
1682 | else | |
1683 | printk(KERN_CONT " drive"); | |
1da177e4 | 1684 | |
455d80a9 | 1685 | printk(KERN_CONT ", %dkB Cache\n", be16_to_cpu(*(u16 *)&buf[8 + 12])); |
1da177e4 LT |
1686 | |
1687 | return nslots; | |
1688 | } | |
1689 | ||
5a3ea3b4 | 1690 | /* standard prep_rq_fn that builds 10 byte cmds */ |
165125e1 | 1691 | static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) |
1da177e4 LT |
1692 | { |
1693 | int hard_sect = queue_hardsect_size(q); | |
1694 | long block = (long)rq->hard_sector / (hard_sect >> 9); | |
1695 | unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9); | |
1696 | ||
d34c87e4 | 1697 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
1698 | |
1699 | if (rq_data_dir(rq) == READ) | |
1700 | rq->cmd[0] = GPCMD_READ_10; | |
1701 | else | |
1702 | rq->cmd[0] = GPCMD_WRITE_10; | |
1703 | ||
1704 | /* | |
1705 | * fill in lba | |
1706 | */ | |
1707 | rq->cmd[2] = (block >> 24) & 0xff; | |
1708 | rq->cmd[3] = (block >> 16) & 0xff; | |
1709 | rq->cmd[4] = (block >> 8) & 0xff; | |
1710 | rq->cmd[5] = block & 0xff; | |
1711 | ||
1712 | /* | |
1713 | * and transfer length | |
1714 | */ | |
1715 | rq->cmd[7] = (blocks >> 8) & 0xff; | |
1716 | rq->cmd[8] = blocks & 0xff; | |
1717 | rq->cmd_len = 10; | |
1718 | return BLKPREP_OK; | |
1719 | } | |
1720 | ||
1721 | /* | |
1722 | * Most of the SCSI commands are supported directly by ATAPI devices. | |
1723 | * This transform handles the few exceptions. | |
1724 | */ | |
1725 | static int ide_cdrom_prep_pc(struct request *rq) | |
1726 | { | |
1727 | u8 *c = rq->cmd; | |
1728 | ||
5a3ea3b4 | 1729 | /* transform 6-byte read/write commands to the 10-byte version */ |
1da177e4 LT |
1730 | if (c[0] == READ_6 || c[0] == WRITE_6) { |
1731 | c[8] = c[4]; | |
1732 | c[5] = c[3]; | |
1733 | c[4] = c[2]; | |
1734 | c[3] = c[1] & 0x1f; | |
1735 | c[2] = 0; | |
1736 | c[1] &= 0xe0; | |
1737 | c[0] += (READ_10 - READ_6); | |
1738 | rq->cmd_len = 10; | |
1739 | return BLKPREP_OK; | |
1740 | } | |
1741 | ||
1742 | /* | |
1743 | * it's silly to pretend we understand 6-byte sense commands, just | |
1744 | * reject with ILLEGAL_REQUEST and the caller should take the | |
1745 | * appropriate action | |
1746 | */ | |
1747 | if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { | |
1748 | rq->errors = ILLEGAL_REQUEST; | |
1749 | return BLKPREP_KILL; | |
1750 | } | |
9ce70fb2 | 1751 | |
1da177e4 LT |
1752 | return BLKPREP_OK; |
1753 | } | |
1754 | ||
165125e1 | 1755 | static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) |
1da177e4 | 1756 | { |
4aff5e23 | 1757 | if (blk_fs_request(rq)) |
1da177e4 | 1758 | return ide_cdrom_prep_fs(q, rq); |
4aff5e23 | 1759 | else if (blk_pc_request(rq)) |
1da177e4 LT |
1760 | return ide_cdrom_prep_pc(rq); |
1761 | ||
1762 | return 0; | |
1763 | } | |
1764 | ||
e59724c7 BZ |
1765 | struct cd_list_entry { |
1766 | const char *id_model; | |
1767 | const char *id_firmware; | |
1768 | unsigned int cd_flags; | |
1769 | }; | |
1770 | ||
5e657a9e BP |
1771 | #ifdef CONFIG_IDE_PROC_FS |
1772 | static sector_t ide_cdrom_capacity(ide_drive_t *drive) | |
1773 | { | |
1774 | unsigned long capacity, sectors_per_frame; | |
1775 | ||
1776 | if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL)) | |
1777 | return 0; | |
1778 | ||
1779 | return capacity * sectors_per_frame; | |
1780 | } | |
1781 | ||
e5e076a3 BP |
1782 | static int proc_idecd_read_capacity(char *page, char **start, off_t off, |
1783 | int count, int *eof, void *data) | |
5e657a9e BP |
1784 | { |
1785 | ide_drive_t *drive = data; | |
1786 | int len; | |
1787 | ||
1788 | len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive)); | |
1789 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); | |
1790 | } | |
1791 | ||
1792 | static ide_proc_entry_t idecd_proc[] = { | |
1793 | { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL }, | |
1794 | { NULL, 0, NULL, NULL } | |
1795 | }; | |
1796 | ||
1797 | static void ide_cdrom_add_settings(ide_drive_t *drive) | |
1798 | { | |
1799 | ide_add_setting(drive, "dsc_overlap", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, | |
1800 | &drive->dsc_overlap, NULL); | |
1801 | } | |
1802 | #else | |
1803 | static inline void ide_cdrom_add_settings(ide_drive_t *drive) { ; } | |
1804 | #endif | |
1805 | ||
e59724c7 BZ |
1806 | static const struct cd_list_entry ide_cd_quirks_list[] = { |
1807 | /* Limit transfer size per interrupt. */ | |
1808 | { "SAMSUNG CD-ROM SCR-2430", NULL, IDE_CD_FLAG_LIMIT_NFRAMES }, | |
1809 | { "SAMSUNG CD-ROM SCR-2432", NULL, IDE_CD_FLAG_LIMIT_NFRAMES }, | |
1810 | /* SCR-3231 doesn't support the SET_CD_SPEED command. */ | |
1811 | { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_CD_FLAG_NO_SPEED_SELECT }, | |
1812 | /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ | |
1813 | { "NEC CD-ROM DRIVE:260", "1.01", IDE_CD_FLAG_TOCADDR_AS_BCD | | |
1814 | IDE_CD_FLAG_PRE_ATAPI12, }, | |
1815 | /* Vertos 300, some versions of this drive like to talk BCD. */ | |
1816 | { "V003S0DS", NULL, IDE_CD_FLAG_VERTOS_300_SSD, }, | |
1817 | /* Vertos 600 ESD. */ | |
1818 | { "V006E0DS", NULL, IDE_CD_FLAG_VERTOS_600_ESD, }, | |
1819 | /* | |
1820 | * Sanyo 3 CD changer uses a non-standard command for CD changing | |
1821 | * (by default standard ATAPI support for CD changers is used). | |
1822 | */ | |
1823 | { "CD-ROM CDR-C3 G", NULL, IDE_CD_FLAG_SANYO_3CD }, | |
1824 | { "CD-ROM CDR-C3G", NULL, IDE_CD_FLAG_SANYO_3CD }, | |
1825 | { "CD-ROM CDR_C36", NULL, IDE_CD_FLAG_SANYO_3CD }, | |
1826 | /* Stingray 8X CD-ROM. */ | |
1827 | { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_CD_FLAG_PRE_ATAPI12}, | |
1828 | /* | |
1829 | * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length | |
1830 | * mode sense page capabilities size, but older drives break. | |
1831 | */ | |
1832 | { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_CD_FLAG_FULL_CAPS_PAGE }, | |
1833 | { "WPI CDS-32X", NULL, IDE_CD_FLAG_FULL_CAPS_PAGE }, | |
1834 | /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ | |
1835 | { "", "241N", IDE_CD_FLAG_LE_SPEED_FIELDS }, | |
1836 | /* | |
1837 | * Some drives used by Apple don't advertise audio play | |
1838 | * but they do support reading TOC & audio datas. | |
1839 | */ | |
1840 | { "MATSHITADVD-ROM SR-8187", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK }, | |
1841 | { "MATSHITADVD-ROM SR-8186", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK }, | |
1842 | { "MATSHITADVD-ROM SR-8176", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK }, | |
1843 | { "MATSHITADVD-ROM SR-8174", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK }, | |
acbe44e6 | 1844 | { "Optiarc DVD RW AD-5200A", NULL, IDE_CD_FLAG_PLAY_AUDIO_OK }, |
e59724c7 BZ |
1845 | { NULL, NULL, 0 } |
1846 | }; | |
1847 | ||
1848 | static unsigned int ide_cd_flags(struct hd_driveid *id) | |
1849 | { | |
1850 | const struct cd_list_entry *cle = ide_cd_quirks_list; | |
1851 | ||
1852 | while (cle->id_model) { | |
1853 | if (strcmp(cle->id_model, id->model) == 0 && | |
1854 | (cle->id_firmware == NULL || | |
1855 | strstr(id->fw_rev, cle->id_firmware))) | |
1856 | return cle->cd_flags; | |
1857 | cle++; | |
1858 | } | |
1859 | ||
1860 | return 0; | |
1861 | } | |
1862 | ||
e5e076a3 | 1863 | static int ide_cdrom_setup(ide_drive_t *drive) |
1da177e4 | 1864 | { |
4fe67178 BZ |
1865 | struct cdrom_info *cd = drive->driver_data; |
1866 | struct cdrom_device_info *cdi = &cd->devinfo; | |
e59724c7 | 1867 | struct hd_driveid *id = drive->id; |
1da177e4 LT |
1868 | int nslots; |
1869 | ||
1870 | blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn); | |
1871 | blk_queue_dma_alignment(drive->queue, 31); | |
1872 | drive->queue->unplug_delay = (1 * HZ) / 1000; | |
1873 | if (!drive->queue->unplug_delay) | |
1874 | drive->queue->unplug_delay = 1; | |
1875 | ||
1876 | drive->special.all = 0; | |
1877 | ||
e59724c7 BZ |
1878 | cd->cd_flags = IDE_CD_FLAG_MEDIA_CHANGED | IDE_CD_FLAG_NO_EJECT | |
1879 | ide_cd_flags(id); | |
1da177e4 | 1880 | |
e59724c7 | 1881 | if ((id->config & 0x0060) == 0x20) |
2bc4cf2d | 1882 | cd->cd_flags |= IDE_CD_FLAG_DRQ_INTERRUPT; |
e59724c7 BZ |
1883 | |
1884 | if ((cd->cd_flags & IDE_CD_FLAG_VERTOS_300_SSD) && | |
1885 | id->fw_rev[4] == '1' && id->fw_rev[6] <= '2') | |
2bc4cf2d BZ |
1886 | cd->cd_flags |= (IDE_CD_FLAG_TOCTRACKS_AS_BCD | |
1887 | IDE_CD_FLAG_TOCADDR_AS_BCD); | |
e59724c7 BZ |
1888 | else if ((cd->cd_flags & IDE_CD_FLAG_VERTOS_600_ESD) && |
1889 | id->fw_rev[4] == '1' && id->fw_rev[6] <= '2') | |
2bc4cf2d | 1890 | cd->cd_flags |= IDE_CD_FLAG_TOCTRACKS_AS_BCD; |
e59724c7 | 1891 | else if (cd->cd_flags & IDE_CD_FLAG_SANYO_3CD) |
5a3ea3b4 BP |
1892 | /* 3 => use CD in slot 0 */ |
1893 | cdi->sanyo_slot = 3; | |
1da177e4 | 1894 | |
9ce70fb2 | 1895 | nslots = ide_cdrom_probe_capabilities(drive); |
1da177e4 | 1896 | |
5a3ea3b4 | 1897 | /* set correct block size */ |
1da177e4 LT |
1898 | blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE); |
1899 | ||
cc12175f | 1900 | drive->dsc_overlap = (drive->next != drive); |
1da177e4 LT |
1901 | |
1902 | if (ide_cdrom_register(drive, nslots)) { | |
83c8565d BP |
1903 | printk(KERN_ERR "%s: %s failed to register device with the" |
1904 | " cdrom driver.\n", drive->name, __func__); | |
4fe67178 | 1905 | cd->devinfo.handle = NULL; |
1da177e4 LT |
1906 | return 1; |
1907 | } | |
1908 | ide_cdrom_add_settings(drive); | |
1909 | return 0; | |
1910 | } | |
1911 | ||
4031bbe4 | 1912 | static void ide_cd_remove(ide_drive_t *drive) |
1da177e4 LT |
1913 | { |
1914 | struct cdrom_info *info = drive->driver_data; | |
1915 | ||
7662d046 | 1916 | ide_proc_unregister_driver(drive, info->driver); |
1da177e4 LT |
1917 | |
1918 | del_gendisk(info->disk); | |
1919 | ||
1920 | ide_cd_put(info); | |
1da177e4 LT |
1921 | } |
1922 | ||
1923 | static void ide_cd_release(struct kref *kref) | |
1924 | { | |
1925 | struct cdrom_info *info = to_ide_cd(kref); | |
1926 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1927 | ide_drive_t *drive = info->drive; | |
1928 | struct gendisk *g = info->disk; | |
1929 | ||
6044ec88 | 1930 | kfree(info->toc); |
0a0c4114 AM |
1931 | if (devinfo->handle == drive) |
1932 | unregister_cdrom(devinfo); | |
1da177e4 LT |
1933 | drive->dsc_overlap = 0; |
1934 | drive->driver_data = NULL; | |
1935 | blk_queue_prep_rq(drive->queue, NULL); | |
1936 | g->private_data = NULL; | |
1937 | put_disk(g); | |
1938 | kfree(info); | |
1939 | } | |
1940 | ||
4031bbe4 | 1941 | static int ide_cd_probe(ide_drive_t *); |
1da177e4 | 1942 | |
1da177e4 | 1943 | static ide_driver_t ide_cdrom_driver = { |
8604affd | 1944 | .gen_driver = { |
4ef3b8f4 | 1945 | .owner = THIS_MODULE, |
8604affd BZ |
1946 | .name = "ide-cdrom", |
1947 | .bus = &ide_bus_type, | |
8604affd | 1948 | }, |
4031bbe4 RK |
1949 | .probe = ide_cd_probe, |
1950 | .remove = ide_cd_remove, | |
1da177e4 LT |
1951 | .version = IDECD_VERSION, |
1952 | .media = ide_cdrom, | |
1da177e4 | 1953 | .supports_dsc_overlap = 1, |
1da177e4 LT |
1954 | .do_request = ide_do_rw_cdrom, |
1955 | .end_request = ide_end_request, | |
1956 | .error = __ide_error, | |
1957 | .abort = __ide_abort, | |
7662d046 | 1958 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 | 1959 | .proc = idecd_proc, |
7662d046 | 1960 | #endif |
1da177e4 LT |
1961 | }; |
1962 | ||
9ce70fb2 | 1963 | static int idecd_open(struct inode *inode, struct file *file) |
1da177e4 LT |
1964 | { |
1965 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
1966 | struct cdrom_info *info; | |
1da177e4 LT |
1967 | int rc = -ENOMEM; |
1968 | ||
9ce70fb2 PC |
1969 | info = ide_cd_get(disk); |
1970 | if (!info) | |
1da177e4 LT |
1971 | return -ENXIO; |
1972 | ||
968c4964 | 1973 | rc = cdrom_open(&info->devinfo, inode, file); |
1da177e4 LT |
1974 | |
1975 | if (rc < 0) | |
1976 | ide_cd_put(info); | |
1977 | ||
1978 | return rc; | |
1979 | } | |
1980 | ||
9ce70fb2 | 1981 | static int idecd_release(struct inode *inode, struct file *file) |
1da177e4 LT |
1982 | { |
1983 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
1984 | struct cdrom_info *info = ide_cd_g(disk); | |
1da177e4 | 1985 | |
9ce70fb2 | 1986 | cdrom_release(&info->devinfo, file); |
1da177e4 LT |
1987 | |
1988 | ide_cd_put(info); | |
1989 | ||
1990 | return 0; | |
1991 | } | |
1992 | ||
6a2900b6 CH |
1993 | static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
1994 | { | |
1995 | struct packet_command cgc; | |
1996 | char buffer[16]; | |
1997 | int stat; | |
1998 | char spindown; | |
1999 | ||
2000 | if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) | |
2001 | return -EFAULT; | |
2002 | ||
2003 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
2004 | ||
2005 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
2006 | if (stat) | |
2007 | return stat; | |
2008 | ||
2009 | buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); | |
2010 | return cdrom_mode_select(cdi, &cgc); | |
2011 | } | |
2012 | ||
2013 | static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) | |
2014 | { | |
2015 | struct packet_command cgc; | |
2016 | char buffer[16]; | |
2017 | int stat; | |
9ce70fb2 | 2018 | char spindown; |
6a2900b6 CH |
2019 | |
2020 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
2021 | ||
2022 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
2023 | if (stat) | |
2024 | return stat; | |
2025 | ||
2026 | spindown = buffer[11] & 0x0f; | |
9ce70fb2 | 2027 | if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) |
6a2900b6 CH |
2028 | return -EFAULT; |
2029 | return 0; | |
2030 | } | |
2031 | ||
9ce70fb2 | 2032 | static int idecd_ioctl(struct inode *inode, struct file *file, |
1da177e4 LT |
2033 | unsigned int cmd, unsigned long arg) |
2034 | { | |
2035 | struct block_device *bdev = inode->i_bdev; | |
2036 | struct cdrom_info *info = ide_cd_g(bdev->bd_disk); | |
2037 | int err; | |
2038 | ||
6a2900b6 | 2039 | switch (cmd) { |
9ce70fb2 | 2040 | case CDROMSETSPINDOWN: |
6a2900b6 | 2041 | return idecd_set_spindown(&info->devinfo, arg); |
9ce70fb2 | 2042 | case CDROMGETSPINDOWN: |
6a2900b6 CH |
2043 | return idecd_get_spindown(&info->devinfo, arg); |
2044 | default: | |
2045 | break; | |
9ce70fb2 | 2046 | } |
6a2900b6 CH |
2047 | |
2048 | err = generic_ide_ioctl(info->drive, file, bdev, cmd, arg); | |
1da177e4 LT |
2049 | if (err == -EINVAL) |
2050 | err = cdrom_ioctl(file, &info->devinfo, inode, cmd, arg); | |
2051 | ||
2052 | return err; | |
2053 | } | |
2054 | ||
2055 | static int idecd_media_changed(struct gendisk *disk) | |
2056 | { | |
2057 | struct cdrom_info *info = ide_cd_g(disk); | |
2058 | return cdrom_media_changed(&info->devinfo); | |
2059 | } | |
2060 | ||
2061 | static int idecd_revalidate_disk(struct gendisk *disk) | |
2062 | { | |
2063 | struct cdrom_info *info = ide_cd_g(disk); | |
2064 | struct request_sense sense; | |
139c829d BZ |
2065 | |
2066 | ide_cd_read_toc(info->drive, &sense); | |
2067 | ||
1da177e4 LT |
2068 | return 0; |
2069 | } | |
2070 | ||
2071 | static struct block_device_operations idecd_ops = { | |
9ce70fb2 PC |
2072 | .owner = THIS_MODULE, |
2073 | .open = idecd_open, | |
2074 | .release = idecd_release, | |
2075 | .ioctl = idecd_ioctl, | |
2076 | .media_changed = idecd_media_changed, | |
2077 | .revalidate_disk = idecd_revalidate_disk | |
1da177e4 LT |
2078 | }; |
2079 | ||
5a3ea3b4 | 2080 | /* module options */ |
9ce70fb2 | 2081 | static char *ignore; |
1da177e4 LT |
2082 | |
2083 | module_param(ignore, charp, 0400); | |
2084 | MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); | |
2085 | ||
4031bbe4 | 2086 | static int ide_cd_probe(ide_drive_t *drive) |
1da177e4 LT |
2087 | { |
2088 | struct cdrom_info *info; | |
2089 | struct gendisk *g; | |
2090 | struct request_sense sense; | |
2091 | ||
2092 | if (!strstr("ide-cdrom", drive->driver_req)) | |
2093 | goto failed; | |
2094 | if (!drive->present) | |
2095 | goto failed; | |
2096 | if (drive->media != ide_cdrom && drive->media != ide_optical) | |
2097 | goto failed; | |
2098 | /* skip drives that we were told to ignore */ | |
2099 | if (ignore != NULL) { | |
2100 | if (strstr(ignore, drive->name)) { | |
83c8565d BP |
2101 | printk(KERN_INFO "ide-cd: ignoring drive %s\n", |
2102 | drive->name); | |
1da177e4 LT |
2103 | goto failed; |
2104 | } | |
2105 | } | |
2106 | if (drive->scsi) { | |
83c8565d BP |
2107 | printk(KERN_INFO "ide-cd: passing drive %s to ide-scsi " |
2108 | "emulation.\n", drive->name); | |
1da177e4 LT |
2109 | goto failed; |
2110 | } | |
f5e3c2fa | 2111 | info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); |
1da177e4 | 2112 | if (info == NULL) { |
83c8565d BP |
2113 | printk(KERN_ERR "%s: Can't allocate a cdrom structure\n", |
2114 | drive->name); | |
1da177e4 LT |
2115 | goto failed; |
2116 | } | |
2117 | ||
2118 | g = alloc_disk(1 << PARTN_BITS); | |
2119 | if (!g) | |
2120 | goto out_free_cd; | |
2121 | ||
2122 | ide_init_disk(g, drive); | |
2123 | ||
7662d046 | 2124 | ide_proc_register_driver(drive, &ide_cdrom_driver); |
8604affd | 2125 | |
1da177e4 LT |
2126 | kref_init(&info->kref); |
2127 | ||
2128 | info->drive = drive; | |
2129 | info->driver = &ide_cdrom_driver; | |
2130 | info->disk = g; | |
2131 | ||
2132 | g->private_data = &info->driver; | |
2133 | ||
2134 | drive->driver_data = info; | |
2135 | ||
1da177e4 | 2136 | g->minors = 1; |
1da177e4 LT |
2137 | g->driverfs_dev = &drive->gendev; |
2138 | g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; | |
2139 | if (ide_cdrom_setup(drive)) { | |
7662d046 | 2140 | ide_proc_unregister_driver(drive, &ide_cdrom_driver); |
05017db3 | 2141 | ide_cd_release(&info->kref); |
1da177e4 LT |
2142 | goto failed; |
2143 | } | |
1da177e4 | 2144 | |
139c829d | 2145 | ide_cd_read_toc(drive, &sense); |
1da177e4 LT |
2146 | g->fops = &idecd_ops; |
2147 | g->flags |= GENHD_FL_REMOVABLE; | |
2148 | add_disk(g); | |
2149 | return 0; | |
2150 | ||
1da177e4 LT |
2151 | out_free_cd: |
2152 | kfree(info); | |
2153 | failed: | |
8604affd | 2154 | return -ENODEV; |
1da177e4 LT |
2155 | } |
2156 | ||
2157 | static void __exit ide_cdrom_exit(void) | |
2158 | { | |
8604affd | 2159 | driver_unregister(&ide_cdrom_driver.gen_driver); |
1da177e4 | 2160 | } |
17514e8a BZ |
2161 | |
2162 | static int __init ide_cdrom_init(void) | |
1da177e4 | 2163 | { |
8604affd | 2164 | return driver_register(&ide_cdrom_driver.gen_driver); |
1da177e4 LT |
2165 | } |
2166 | ||
263756ec | 2167 | MODULE_ALIAS("ide:*m-cdrom*"); |
972560fb | 2168 | MODULE_ALIAS("ide-cd"); |
1da177e4 LT |
2169 | module_init(ide_cdrom_init); |
2170 | module_exit(ide_cdrom_exit); | |
2171 | MODULE_LICENSE("GPL"); |