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Commit | Line | Data |
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1da177e4 | 1 | /* |
3bb4663b | 2 | * ATAPI CD-ROM driver. |
1da177e4 | 3 | * |
59bca8cc BZ |
4 | * Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov> |
5 | * Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org> | |
6 | * Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de> | |
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 | { |
570f89ea BP |
88 | drive->atapi_flags |= IDE_AFLAG_MEDIA_CHANGED; |
89 | drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID; | |
1da177e4 LT |
90 | } |
91 | ||
92 | static int cdrom_log_sense(ide_drive_t *drive, struct request *rq, | |
93 | struct request_sense *sense) | |
94 | { | |
95 | int log = 0; | |
96 | ||
4aff5e23 | 97 | if (!sense || !rq || (rq->cmd_flags & REQ_QUIET)) |
1da177e4 LT |
98 | return 0; |
99 | ||
100 | switch (sense->sense_key) { | |
9ce70fb2 PC |
101 | case NO_SENSE: |
102 | case RECOVERED_ERROR: | |
103 | break; | |
104 | case NOT_READY: | |
105 | /* | |
5a3ea3b4 BP |
106 | * don't care about tray state messages for e.g. capacity |
107 | * commands or in-progress or becoming ready | |
9ce70fb2 PC |
108 | */ |
109 | if (sense->asc == 0x3a || sense->asc == 0x04) | |
1da177e4 | 110 | break; |
9ce70fb2 PC |
111 | log = 1; |
112 | break; | |
113 | case ILLEGAL_REQUEST: | |
114 | /* | |
5a3ea3b4 BP |
115 | * don't log START_STOP unit with LoEj set, since we cannot |
116 | * reliably check if drive can auto-close | |
9ce70fb2 PC |
117 | */ |
118 | if (rq->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24) | |
1da177e4 | 119 | break; |
9ce70fb2 PC |
120 | log = 1; |
121 | break; | |
122 | case UNIT_ATTENTION: | |
123 | /* | |
5a3ea3b4 BP |
124 | * Make good and sure we've seen this potential media change. |
125 | * Some drives (i.e. Creative) fail to present the correct sense | |
126 | * key in the error register. | |
9ce70fb2 PC |
127 | */ |
128 | cdrom_saw_media_change(drive); | |
129 | break; | |
130 | default: | |
131 | log = 1; | |
132 | break; | |
1da177e4 LT |
133 | } |
134 | return log; | |
135 | } | |
136 | ||
e5e076a3 | 137 | static void cdrom_analyze_sense_data(ide_drive_t *drive, |
1da177e4 LT |
138 | struct request *failed_command, |
139 | struct request_sense *sense) | |
140 | { | |
dbe217af AC |
141 | unsigned long sector; |
142 | unsigned long bio_sectors; | |
dbe217af AC |
143 | struct cdrom_info *info = drive->driver_data; |
144 | ||
1da177e4 LT |
145 | if (!cdrom_log_sense(drive, failed_command, sense)) |
146 | return; | |
147 | ||
148 | /* | |
5a3ea3b4 BP |
149 | * If a read toc is executed for a CD-R or CD-RW medium where the first |
150 | * toc has not been recorded yet, it will fail with 05/24/00 (which is a | |
151 | * confusing error) | |
1da177e4 LT |
152 | */ |
153 | if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP) | |
154 | if (sense->sense_key == 0x05 && sense->asc == 0x24) | |
155 | return; | |
156 | ||
5a3ea3b4 BP |
157 | /* current error */ |
158 | if (sense->error_code == 0x70) { | |
9ce70fb2 | 159 | switch (sense->sense_key) { |
dbe217af AC |
160 | case MEDIUM_ERROR: |
161 | case VOLUME_OVERFLOW: | |
162 | case ILLEGAL_REQUEST: | |
163 | if (!sense->valid) | |
164 | break; | |
165 | if (failed_command == NULL || | |
166 | !blk_fs_request(failed_command)) | |
167 | break; | |
168 | sector = (sense->information[0] << 24) | | |
169 | (sense->information[1] << 16) | | |
170 | (sense->information[2] << 8) | | |
171 | (sense->information[3]); | |
172 | ||
dbe217af | 173 | if (drive->queue->hardsect_size == 2048) |
5a3ea3b4 BP |
174 | /* device sector size is 2K */ |
175 | sector <<= 2; | |
eee49298 RK |
176 | |
177 | bio_sectors = max(bio_sectors(failed_command->bio), 4U); | |
9ce70fb2 | 178 | sector &= ~(bio_sectors - 1); |
dbe217af | 179 | |
dbe217af | 180 | if (sector < get_capacity(info->disk) && |
e5e076a3 | 181 | drive->probed_capacity - sector < 4 * 75) |
dbe217af | 182 | set_capacity(info->disk, sector); |
9ce70fb2 PC |
183 | } |
184 | } | |
1da177e4 | 185 | |
972560fb | 186 | ide_cd_log_error(drive->name, failed_command, sense); |
1da177e4 LT |
187 | } |
188 | ||
1da177e4 LT |
189 | static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, |
190 | struct request *failed_command) | |
191 | { | |
192 | struct cdrom_info *info = drive->driver_data; | |
193 | struct request *rq = &info->request_sense_request; | |
194 | ||
195 | if (sense == NULL) | |
196 | sense = &info->sense_data; | |
197 | ||
198 | /* stuff the sense request in front of our current request */ | |
ed820f19 FT |
199 | blk_rq_init(NULL, rq); |
200 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
201 | rq->rq_disk = info->disk; | |
1da177e4 LT |
202 | |
203 | rq->data = sense; | |
204 | rq->cmd[0] = GPCMD_REQUEST_SENSE; | |
e5e076a3 BP |
205 | rq->cmd[4] = 18; |
206 | rq->data_len = 18; | |
1da177e4 | 207 | |
4aff5e23 | 208 | rq->cmd_type = REQ_TYPE_SENSE; |
e8a96aa7 | 209 | rq->cmd_flags |= REQ_PREEMPT; |
1da177e4 LT |
210 | |
211 | /* NOTE! Save the failed command in "rq->buffer" */ | |
212 | rq->buffer = (void *) failed_command; | |
213 | ||
63f5abb0 | 214 | ide_do_drive_cmd(drive, rq); |
1da177e4 LT |
215 | } |
216 | ||
9ce70fb2 | 217 | static void cdrom_end_request(ide_drive_t *drive, int uptodate) |
1da177e4 LT |
218 | { |
219 | struct request *rq = HWGROUP(drive)->rq; | |
220 | int nsectors = rq->hard_cur_sectors; | |
221 | ||
4aff5e23 | 222 | if (blk_sense_request(rq) && uptodate) { |
1da177e4 | 223 | /* |
4aff5e23 JA |
224 | * For REQ_TYPE_SENSE, "rq->buffer" points to the original |
225 | * failed request | |
1da177e4 LT |
226 | */ |
227 | struct request *failed = (struct request *) rq->buffer; | |
228 | struct cdrom_info *info = drive->driver_data; | |
229 | void *sense = &info->sense_data; | |
230 | unsigned long flags; | |
231 | ||
232 | if (failed) { | |
233 | if (failed->sense) { | |
234 | sense = failed->sense; | |
235 | failed->sense_len = rq->sense_len; | |
236 | } | |
dbe217af | 237 | cdrom_analyze_sense_data(drive, failed, sense); |
1da177e4 | 238 | /* |
5a3ea3b4 | 239 | * now end the failed request |
1da177e4 | 240 | */ |
dbe217af AC |
241 | if (blk_fs_request(failed)) { |
242 | if (ide_end_dequeued_request(drive, failed, 0, | |
243 | failed->hard_nr_sectors)) | |
244 | BUG(); | |
245 | } else { | |
246 | spin_lock_irqsave(&ide_lock, flags); | |
5e36bb6e KU |
247 | if (__blk_end_request(failed, -EIO, |
248 | failed->data_len)) | |
249 | BUG(); | |
dbe217af AC |
250 | spin_unlock_irqrestore(&ide_lock, flags); |
251 | } | |
252 | } else | |
253 | cdrom_analyze_sense_data(drive, NULL, sense); | |
1da177e4 LT |
254 | } |
255 | ||
256 | if (!rq->current_nr_sectors && blk_fs_request(rq)) | |
257 | uptodate = 1; | |
258 | /* make sure it's fully ended */ | |
259 | if (blk_pc_request(rq)) | |
260 | nsectors = (rq->data_len + 511) >> 9; | |
261 | if (!nsectors) | |
262 | nsectors = 1; | |
263 | ||
264 | ide_end_request(drive, uptodate, nsectors); | |
265 | } | |
266 | ||
83c8565d | 267 | static void ide_dump_status_no_sense(ide_drive_t *drive, const char *msg, u8 st) |
dbe217af | 268 | { |
83c8565d | 269 | if (st & 0x80) |
dbe217af | 270 | return; |
83c8565d | 271 | ide_dump_status(drive, msg, st); |
dbe217af AC |
272 | } |
273 | ||
5a3ea3b4 BP |
274 | /* |
275 | * Returns: | |
276 | * 0: if the request should be continued. | |
277 | * 1: if the request was ended. | |
278 | */ | |
1da177e4 LT |
279 | static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) |
280 | { | |
b73c7ee2 BZ |
281 | ide_hwif_t *hwif = drive->hwif; |
282 | struct request *rq = hwif->hwgroup->rq; | |
1da177e4 | 283 | int stat, err, sense_key; |
9ce70fb2 | 284 | |
5a3ea3b4 | 285 | /* check for errors */ |
374e042c | 286 | stat = hwif->tp_ops->read_status(hwif); |
c47137a9 | 287 | |
1da177e4 LT |
288 | if (stat_ret) |
289 | *stat_ret = stat; | |
290 | ||
291 | if (OK_STAT(stat, good_stat, BAD_R_STAT)) | |
292 | return 0; | |
293 | ||
5a3ea3b4 | 294 | /* get the IDE error register */ |
64a57fe4 | 295 | err = ide_read_error(drive); |
1da177e4 LT |
296 | sense_key = err >> 4; |
297 | ||
298 | if (rq == NULL) { | |
e5e076a3 BP |
299 | printk(KERN_ERR "%s: missing rq in %s\n", |
300 | drive->name, __func__); | |
1da177e4 LT |
301 | return 1; |
302 | } | |
303 | ||
4aff5e23 | 304 | if (blk_sense_request(rq)) { |
5a3ea3b4 BP |
305 | /* |
306 | * We got an error trying to get sense info from the drive | |
307 | * (probably while trying to recover from a former error). | |
308 | * Just give up. | |
309 | */ | |
4aff5e23 | 310 | rq->cmd_flags |= REQ_FAILED; |
1da177e4 LT |
311 | cdrom_end_request(drive, 0); |
312 | ide_error(drive, "request sense failure", stat); | |
313 | return 1; | |
314 | ||
8770c018 | 315 | } else if (blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) { |
1da177e4 | 316 | /* All other functions, except for READ. */ |
1da177e4 LT |
317 | |
318 | /* | |
319 | * if we have an error, pass back CHECK_CONDITION as the | |
320 | * scsi status byte | |
321 | */ | |
b7156731 | 322 | if (blk_pc_request(rq) && !rq->errors) |
1da177e4 LT |
323 | rq->errors = SAM_STAT_CHECK_CONDITION; |
324 | ||
5a3ea3b4 | 325 | /* check for tray open */ |
1da177e4 | 326 | if (sense_key == NOT_READY) { |
9ce70fb2 | 327 | cdrom_saw_media_change(drive); |
1da177e4 | 328 | } else if (sense_key == UNIT_ATTENTION) { |
5a3ea3b4 | 329 | /* check for media change */ |
9ce70fb2 | 330 | cdrom_saw_media_change(drive); |
1da177e4 | 331 | return 0; |
9ce70fb2 PC |
332 | } else if (sense_key == ILLEGAL_REQUEST && |
333 | rq->cmd[0] == GPCMD_START_STOP_UNIT) { | |
334 | /* | |
335 | * Don't print error message for this condition-- | |
336 | * SFF8090i indicates that 5/24/00 is the correct | |
337 | * response to a request to close the tray if the | |
338 | * drive doesn't have that capability. | |
339 | * cdrom_log_sense() knows this! | |
340 | */ | |
4aff5e23 | 341 | } else if (!(rq->cmd_flags & REQ_QUIET)) { |
5a3ea3b4 | 342 | /* otherwise, print an error */ |
1da177e4 LT |
343 | ide_dump_status(drive, "packet command error", stat); |
344 | } | |
9ce70fb2 | 345 | |
4aff5e23 | 346 | rq->cmd_flags |= REQ_FAILED; |
1da177e4 LT |
347 | |
348 | /* | |
349 | * instead of playing games with moving completions around, | |
350 | * remove failed request completely and end it when the | |
351 | * request sense has completed | |
352 | */ | |
bbb89e3d | 353 | goto end_request; |
1da177e4 LT |
354 | |
355 | } else if (blk_fs_request(rq)) { | |
356 | int do_end_request = 0; | |
357 | ||
5a3ea3b4 | 358 | /* handle errors from READ and WRITE requests */ |
1da177e4 LT |
359 | |
360 | if (blk_noretry_request(rq)) | |
361 | do_end_request = 1; | |
362 | ||
363 | if (sense_key == NOT_READY) { | |
5a3ea3b4 | 364 | /* tray open */ |
1da177e4 | 365 | if (rq_data_dir(rq) == READ) { |
9ce70fb2 | 366 | cdrom_saw_media_change(drive); |
1da177e4 | 367 | |
5a3ea3b4 | 368 | /* fail the request */ |
e5e076a3 | 369 | printk(KERN_ERR "%s: tray open\n", drive->name); |
1da177e4 LT |
370 | do_end_request = 1; |
371 | } else { | |
372 | struct cdrom_info *info = drive->driver_data; | |
373 | ||
5a3ea3b4 BP |
374 | /* |
375 | * Allow the drive 5 seconds to recover, some | |
1da177e4 | 376 | * devices will return this error while flushing |
5a3ea3b4 BP |
377 | * data from cache. |
378 | */ | |
1da177e4 | 379 | if (!rq->errors) |
83c8565d BP |
380 | info->write_timeout = jiffies + |
381 | ATAPI_WAIT_WRITE_BUSY; | |
1da177e4 LT |
382 | rq->errors = 1; |
383 | if (time_after(jiffies, info->write_timeout)) | |
384 | do_end_request = 1; | |
385 | else { | |
386 | unsigned long flags; | |
387 | ||
388 | /* | |
5a3ea3b4 BP |
389 | * take a breather relying on the unplug |
390 | * timer to kick us again | |
1da177e4 LT |
391 | */ |
392 | spin_lock_irqsave(&ide_lock, flags); | |
393 | blk_plug_device(drive->queue); | |
83c8565d BP |
394 | spin_unlock_irqrestore(&ide_lock, |
395 | flags); | |
1da177e4 LT |
396 | return 1; |
397 | } | |
398 | } | |
399 | } else if (sense_key == UNIT_ATTENTION) { | |
5a3ea3b4 | 400 | /* media change */ |
e5e076a3 | 401 | cdrom_saw_media_change(drive); |
1da177e4 | 402 | |
9ce70fb2 | 403 | /* |
5a3ea3b4 BP |
404 | * Arrange to retry the request but be sure to give up |
405 | * if we've retried too many times. | |
9ce70fb2 | 406 | */ |
1da177e4 LT |
407 | if (++rq->errors > ERROR_MAX) |
408 | do_end_request = 1; | |
409 | } else if (sense_key == ILLEGAL_REQUEST || | |
410 | sense_key == DATA_PROTECT) { | |
9ce70fb2 | 411 | /* |
5a3ea3b4 BP |
412 | * No point in retrying after an illegal request or data |
413 | * protect error. | |
9ce70fb2 PC |
414 | */ |
415 | ide_dump_status_no_sense(drive, "command error", stat); | |
1da177e4 LT |
416 | do_end_request = 1; |
417 | } else if (sense_key == MEDIUM_ERROR) { | |
9ce70fb2 PC |
418 | /* |
419 | * No point in re-trying a zillion times on a bad | |
5a3ea3b4 | 420 | * sector. If we got here the error is not correctable. |
9ce70fb2 | 421 | */ |
83c8565d BP |
422 | ide_dump_status_no_sense(drive, |
423 | "media error (bad sector)", | |
424 | stat); | |
1da177e4 LT |
425 | do_end_request = 1; |
426 | } else if (sense_key == BLANK_CHECK) { | |
5a3ea3b4 | 427 | /* disk appears blank ?? */ |
83c8565d BP |
428 | ide_dump_status_no_sense(drive, "media error (blank)", |
429 | stat); | |
1da177e4 LT |
430 | do_end_request = 1; |
431 | } else if ((err & ~ABRT_ERR) != 0) { | |
5a3ea3b4 | 432 | /* go to the default handler for other errors */ |
1da177e4 LT |
433 | ide_error(drive, "cdrom_decode_status", stat); |
434 | return 1; | |
435 | } else if ((++rq->errors > ERROR_MAX)) { | |
5a3ea3b4 | 436 | /* we've racked up too many retries, abort */ |
1da177e4 LT |
437 | do_end_request = 1; |
438 | } | |
439 | ||
5a3ea3b4 BP |
440 | /* |
441 | * End a request through request sense analysis when we have | |
442 | * sense data. We need this in order to perform end of media | |
443 | * processing. | |
444 | */ | |
bbb89e3d BZ |
445 | if (do_end_request) |
446 | goto end_request; | |
dbe217af | 447 | |
bbb89e3d | 448 | /* |
5a3ea3b4 BP |
449 | * If we got a CHECK_CONDITION status, queue |
450 | * a request sense command. | |
bbb89e3d BZ |
451 | */ |
452 | if (stat & ERR_STAT) | |
453 | cdrom_queue_request_sense(drive, NULL, NULL); | |
1da177e4 LT |
454 | } else { |
455 | blk_dump_rq_flags(rq, "ide-cd: bad rq"); | |
456 | cdrom_end_request(drive, 0); | |
457 | } | |
458 | ||
5a3ea3b4 | 459 | /* retry, or handle the next request */ |
1da177e4 | 460 | return 1; |
bbb89e3d BZ |
461 | |
462 | end_request: | |
463 | if (stat & ERR_STAT) { | |
464 | unsigned long flags; | |
465 | ||
466 | spin_lock_irqsave(&ide_lock, flags); | |
467 | blkdev_dequeue_request(rq); | |
468 | HWGROUP(drive)->rq = NULL; | |
469 | spin_unlock_irqrestore(&ide_lock, flags); | |
470 | ||
471 | cdrom_queue_request_sense(drive, rq->sense, rq); | |
472 | } else | |
473 | cdrom_end_request(drive, 0); | |
474 | ||
475 | return 1; | |
1da177e4 LT |
476 | } |
477 | ||
478 | static int cdrom_timer_expiry(ide_drive_t *drive) | |
479 | { | |
480 | struct request *rq = HWGROUP(drive)->rq; | |
481 | unsigned long wait = 0; | |
482 | ||
483 | /* | |
5a3ea3b4 BP |
484 | * Some commands are *slow* and normally take a long time to complete. |
485 | * Usually we can use the ATAPI "disconnect" to bypass this, but not all | |
486 | * commands/drives support that. Let ide_timer_expiry keep polling us | |
487 | * for these. | |
1da177e4 LT |
488 | */ |
489 | switch (rq->cmd[0]) { | |
9ce70fb2 PC |
490 | case GPCMD_BLANK: |
491 | case GPCMD_FORMAT_UNIT: | |
492 | case GPCMD_RESERVE_RZONE_TRACK: | |
493 | case GPCMD_CLOSE_TRACK: | |
494 | case GPCMD_FLUSH_CACHE: | |
495 | wait = ATAPI_WAIT_PC; | |
496 | break; | |
497 | default: | |
498 | if (!(rq->cmd_flags & REQ_QUIET)) | |
83c8565d BP |
499 | printk(KERN_INFO "ide-cd: cmd 0x%x timed out\n", |
500 | rq->cmd[0]); | |
9ce70fb2 PC |
501 | wait = 0; |
502 | break; | |
1da177e4 LT |
503 | } |
504 | return wait; | |
505 | } | |
506 | ||
5a3ea3b4 BP |
507 | /* |
508 | * Set up the device registers for transferring a packet command on DEV, | |
509 | * expecting to later transfer XFERLEN bytes. HANDLER is the routine | |
510 | * which actually transfers the command to the drive. If this is a | |
511 | * drq_interrupt device, this routine will arrange for HANDLER to be | |
512 | * called when the interrupt from the drive arrives. Otherwise, HANDLER | |
513 | * will be called immediately after the drive is prepared for the transfer. | |
514 | */ | |
1da177e4 LT |
515 | static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive, |
516 | int xferlen, | |
517 | ide_handler_t *handler) | |
518 | { | |
1da177e4 LT |
519 | struct cdrom_info *info = drive->driver_data; |
520 | ide_hwif_t *hwif = drive->hwif; | |
521 | ||
3a6a3549 | 522 | /* FIXME: for Virtual DMA we must check harder */ |
1da177e4 | 523 | if (info->dma) |
5e37bdc0 | 524 | info->dma = !hwif->dma_ops->dma_setup(drive); |
1da177e4 | 525 | |
5a3ea3b4 | 526 | /* set up the controller registers */ |
9a410e79 BZ |
527 | ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL, |
528 | xferlen, info->dma); | |
4fe67178 | 529 | |
570f89ea | 530 | if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { |
f0dd8712 AL |
531 | /* waiting for CDB interrupt, not DMA yet. */ |
532 | if (info->dma) | |
533 | drive->waiting_for_dma = 0; | |
534 | ||
1da177e4 | 535 | /* packet command */ |
83c8565d BP |
536 | ide_execute_command(drive, WIN_PACKETCMD, handler, |
537 | ATAPI_WAIT_PC, cdrom_timer_expiry); | |
1da177e4 LT |
538 | return ide_started; |
539 | } else { | |
1fc14258 | 540 | ide_execute_pkt_cmd(drive); |
1da177e4 LT |
541 | |
542 | return (*handler) (drive); | |
543 | } | |
544 | } | |
545 | ||
5a3ea3b4 BP |
546 | /* |
547 | * Send a packet command to DRIVE described by CMD_BUF and CMD_LEN. The device | |
548 | * registers must have already been prepared by cdrom_start_packet_command. | |
549 | * HANDLER is the interrupt handler to call when the command completes or | |
550 | * there's data ready. | |
551 | */ | |
1da177e4 | 552 | #define ATAPI_MIN_CDB_BYTES 12 |
9ce70fb2 | 553 | static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive, |
1da177e4 LT |
554 | struct request *rq, |
555 | ide_handler_t *handler) | |
556 | { | |
557 | ide_hwif_t *hwif = drive->hwif; | |
558 | int cmd_len; | |
559 | struct cdrom_info *info = drive->driver_data; | |
560 | ide_startstop_t startstop; | |
561 | ||
570f89ea | 562 | if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { |
5a3ea3b4 BP |
563 | /* |
564 | * Here we should have been called after receiving an interrupt | |
565 | * from the device. DRQ should how be set. | |
566 | */ | |
1da177e4 | 567 | |
5a3ea3b4 | 568 | /* check for errors */ |
1da177e4 LT |
569 | if (cdrom_decode_status(drive, DRQ_STAT, NULL)) |
570 | return ide_stopped; | |
f0dd8712 | 571 | |
5a3ea3b4 | 572 | /* ok, next interrupt will be DMA interrupt */ |
f0dd8712 AL |
573 | if (info->dma) |
574 | drive->waiting_for_dma = 1; | |
1da177e4 | 575 | } else { |
5a3ea3b4 | 576 | /* otherwise, we must wait for DRQ to get set */ |
1da177e4 LT |
577 | if (ide_wait_stat(&startstop, drive, DRQ_STAT, |
578 | BUSY_STAT, WAIT_READY)) | |
579 | return startstop; | |
580 | } | |
581 | ||
5a3ea3b4 | 582 | /* arm the interrupt handler */ |
1da177e4 LT |
583 | ide_set_handler(drive, handler, rq->timeout, cdrom_timer_expiry); |
584 | ||
585 | /* ATAPI commands get padded out to 12 bytes minimum */ | |
586 | cmd_len = COMMAND_SIZE(rq->cmd[0]); | |
587 | if (cmd_len < ATAPI_MIN_CDB_BYTES) | |
588 | cmd_len = ATAPI_MIN_CDB_BYTES; | |
589 | ||
5a3ea3b4 | 590 | /* send the command to the device */ |
374e042c | 591 | hwif->tp_ops->output_data(drive, NULL, rq->cmd, cmd_len); |
1da177e4 | 592 | |
5a3ea3b4 | 593 | /* start the DMA if need be */ |
1da177e4 | 594 | if (info->dma) |
5e37bdc0 | 595 | hwif->dma_ops->dma_start(drive); |
1da177e4 LT |
596 | |
597 | return ide_started; | |
598 | } | |
599 | ||
1da177e4 LT |
600 | /* |
601 | * Check the contents of the interrupt reason register from the cdrom | |
602 | * and attempt to recover if there are problems. Returns 0 if everything's | |
603 | * ok; nonzero if the request has been terminated. | |
604 | */ | |
9f10d9ee BZ |
605 | static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, |
606 | int len, int ireason, int rw) | |
1da177e4 | 607 | { |
b73c7ee2 BZ |
608 | ide_hwif_t *hwif = drive->hwif; |
609 | ||
0d6f7e3a BZ |
610 | /* |
611 | * ireason == 0: the drive wants to receive data from us | |
612 | * ireason == 2: the drive is expecting to transfer data to us | |
613 | */ | |
614 | if (ireason == (!rw << 1)) | |
1da177e4 | 615 | return 0; |
0d6f7e3a | 616 | else if (ireason == (rw << 1)) { |
5a5222d9 | 617 | |
5a3ea3b4 | 618 | /* whoops... */ |
35379c07 | 619 | printk(KERN_ERR "%s: %s: wrong transfer direction!\n", |
177773ed | 620 | drive->name, __func__); |
1da177e4 | 621 | |
ae8789f0 | 622 | ide_pad_transfer(drive, rw, len); |
0d6f7e3a | 623 | } else if (rw == 0 && ireason == 1) { |
5a3ea3b4 BP |
624 | /* |
625 | * Some drives (ASUS) seem to tell us that status info is | |
626 | * available. Just get it and ignore. | |
1da177e4 | 627 | */ |
374e042c | 628 | (void)hwif->tp_ops->read_status(hwif); |
1da177e4 LT |
629 | return 0; |
630 | } else { | |
5a3ea3b4 | 631 | /* drive wants a command packet, or invalid ireason... */ |
35379c07 | 632 | printk(KERN_ERR "%s: %s: bad interrupt reason 0x%02x\n", |
177773ed | 633 | drive->name, __func__, ireason); |
1da177e4 LT |
634 | } |
635 | ||
9f10d9ee BZ |
636 | if (rq->cmd_type == REQ_TYPE_ATA_PC) |
637 | rq->cmd_flags |= REQ_FAILED; | |
638 | ||
1da177e4 LT |
639 | cdrom_end_request(drive, 0); |
640 | return -1; | |
641 | } | |
642 | ||
64814f23 BZ |
643 | /* |
644 | * Assume that the drive will always provide data in multiples of at least | |
645 | * SECTOR_SIZE, as it gets hairy to keep track of the transfers otherwise. | |
646 | */ | |
647 | static int ide_cd_check_transfer_size(ide_drive_t *drive, int len) | |
648 | { | |
64814f23 BZ |
649 | if ((len % SECTOR_SIZE) == 0) |
650 | return 0; | |
651 | ||
652 | printk(KERN_ERR "%s: %s: Bad transfer size %d\n", | |
177773ed | 653 | drive->name, __func__, len); |
64814f23 | 654 | |
570f89ea | 655 | if (drive->atapi_flags & IDE_AFLAG_LIMIT_NFRAMES) |
64814f23 BZ |
656 | printk(KERN_ERR " This drive is not supported by " |
657 | "this version of the driver\n"); | |
658 | else { | |
659 | printk(KERN_ERR " Trying to limit transfer sizes\n"); | |
570f89ea | 660 | drive->atapi_flags |= IDE_AFLAG_LIMIT_NFRAMES; |
64814f23 BZ |
661 | } |
662 | ||
663 | return 1; | |
664 | } | |
665 | ||
0041e7c6 | 666 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *); |
94f5a86d | 667 | |
90eb808e BP |
668 | static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive, |
669 | struct request *rq) | |
1da177e4 | 670 | { |
29f3aaca BZ |
671 | if (rq_data_dir(rq) == READ) { |
672 | unsigned short sectors_per_frame = | |
673 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
674 | int nskip = rq->sector & (sectors_per_frame - 1); | |
1da177e4 | 675 | |
29f3aaca BZ |
676 | /* |
677 | * If the requested sector doesn't start on a frame boundary, | |
678 | * we must adjust the start of the transfer so that it does, | |
679 | * and remember to skip the first few sectors. | |
680 | * | |
681 | * If the rq->current_nr_sectors field is larger than the size | |
682 | * of the buffer, it will mean that we're to skip a number of | |
683 | * sectors equal to the amount by which rq->current_nr_sectors | |
684 | * is larger than the buffer size. | |
685 | */ | |
686 | if (nskip > 0) { | |
5a3ea3b4 | 687 | /* sanity check... */ |
29f3aaca BZ |
688 | if (rq->current_nr_sectors != |
689 | bio_cur_sectors(rq->bio)) { | |
690 | printk(KERN_ERR "%s: %s: buffer botch (%u)\n", | |
177773ed | 691 | drive->name, __func__, |
29f3aaca BZ |
692 | rq->current_nr_sectors); |
693 | cdrom_end_request(drive, 0); | |
694 | return ide_stopped; | |
695 | } | |
696 | rq->current_nr_sectors += nskip; | |
1da177e4 | 697 | } |
1da177e4 | 698 | } |
29f3aaca BZ |
699 | #if 0 |
700 | else | |
701 | /* the immediate bit */ | |
702 | rq->cmd[1] = 1 << 3; | |
703 | #endif | |
5a3ea3b4 | 704 | /* set up the command */ |
1da177e4 LT |
705 | rq->timeout = ATAPI_WAIT_PC; |
706 | ||
90eb808e BP |
707 | return ide_started; |
708 | } | |
709 | ||
710 | /* | |
711 | * Routine to send a read/write packet command to the drive. This is usually | |
712 | * called directly from cdrom_start_{read,write}(). However, for drq_interrupt | |
713 | * devices, it is called from an interrupt when the drive is ready to accept | |
714 | * the command. | |
715 | */ | |
716 | static ide_startstop_t cdrom_start_rw_cont(ide_drive_t *drive) | |
717 | { | |
718 | struct request *rq = drive->hwif->hwgroup->rq; | |
719 | ||
5a3ea3b4 | 720 | /* send the command to the drive and return */ |
0041e7c6 | 721 | return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr); |
1da177e4 LT |
722 | } |
723 | ||
1da177e4 LT |
724 | #define IDECD_SEEK_THRESHOLD (1000) /* 1000 blocks */ |
725 | #define IDECD_SEEK_TIMER (5 * WAIT_MIN_SLEEP) /* 100 ms */ | |
726 | #define IDECD_SEEK_TIMEOUT (2 * WAIT_CMD) /* 20 sec */ | |
727 | ||
9ce70fb2 | 728 | static ide_startstop_t cdrom_seek_intr(ide_drive_t *drive) |
1da177e4 LT |
729 | { |
730 | struct cdrom_info *info = drive->driver_data; | |
731 | int stat; | |
732 | static int retry = 10; | |
733 | ||
734 | if (cdrom_decode_status(drive, 0, &stat)) | |
735 | return ide_stopped; | |
4fe67178 | 736 | |
570f89ea | 737 | drive->atapi_flags |= IDE_AFLAG_SEEKING; |
1da177e4 LT |
738 | |
739 | if (retry && time_after(jiffies, info->start_seek + IDECD_SEEK_TIMER)) { | |
5a3ea3b4 | 740 | if (--retry == 0) |
1da177e4 | 741 | drive->dsc_overlap = 0; |
1da177e4 LT |
742 | } |
743 | return ide_stopped; | |
744 | } | |
745 | ||
e529c608 | 746 | static void ide_cd_prepare_seek_request(ide_drive_t *drive, struct request *rq) |
1da177e4 | 747 | { |
1da177e4 LT |
748 | sector_t frame = rq->sector; |
749 | ||
750 | sector_div(frame, queue_hardsect_size(drive->queue) >> SECTOR_BITS); | |
751 | ||
d34c87e4 | 752 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
753 | rq->cmd[0] = GPCMD_SEEK; |
754 | put_unaligned(cpu_to_be32(frame), (unsigned int *) &rq->cmd[2]); | |
755 | ||
756 | rq->timeout = ATAPI_WAIT_PC; | |
e529c608 BP |
757 | } |
758 | ||
759 | static ide_startstop_t cdrom_start_seek_continuation(ide_drive_t *drive) | |
760 | { | |
761 | struct request *rq = drive->hwif->hwgroup->rq; | |
762 | ||
1da177e4 LT |
763 | return cdrom_transfer_packet_command(drive, rq, &cdrom_seek_intr); |
764 | } | |
765 | ||
9ce70fb2 | 766 | /* |
5a3ea3b4 BP |
767 | * Fix up a possibly partially-processed request so that we can start it over |
768 | * entirely, or even put it back on the request queue. | |
9ce70fb2 PC |
769 | */ |
770 | static void restore_request(struct request *rq) | |
1da177e4 LT |
771 | { |
772 | if (rq->buffer != bio_data(rq->bio)) { | |
83c8565d BP |
773 | sector_t n = |
774 | (rq->buffer - (char *)bio_data(rq->bio)) / SECTOR_SIZE; | |
1da177e4 LT |
775 | |
776 | rq->buffer = bio_data(rq->bio); | |
777 | rq->nr_sectors += n; | |
778 | rq->sector -= n; | |
779 | } | |
83c8565d BP |
780 | rq->current_nr_sectors = bio_cur_sectors(rq->bio); |
781 | rq->hard_cur_sectors = rq->current_nr_sectors; | |
1da177e4 LT |
782 | rq->hard_nr_sectors = rq->nr_sectors; |
783 | rq->hard_sector = rq->sector; | |
784 | rq->q->prep_rq_fn(rq->q, rq); | |
785 | } | |
786 | ||
5a3ea3b4 BP |
787 | /* |
788 | * All other packet commands. | |
1da177e4 | 789 | */ |
8ee69f5a BZ |
790 | static void ide_cd_request_sense_fixup(struct request *rq) |
791 | { | |
792 | /* | |
793 | * Some of the trailing request sense fields are optional, | |
794 | * and some drives don't send them. Sigh. | |
795 | */ | |
796 | if (rq->cmd[0] == GPCMD_REQUEST_SENSE && | |
797 | rq->data_len > 0 && rq->data_len <= 5) | |
798 | while (rq->data_len > 0) { | |
799 | *(u8 *)rq->data++ = 0; | |
800 | --rq->data_len; | |
801 | } | |
802 | } | |
803 | ||
5f828546 FT |
804 | int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, |
805 | int write, void *buffer, unsigned *bufflen, | |
806 | struct request_sense *sense, int timeout, | |
807 | unsigned int cmd_flags) | |
1da177e4 | 808 | { |
5f828546 FT |
809 | struct cdrom_info *info = drive->driver_data; |
810 | struct request_sense local_sense; | |
1da177e4 | 811 | int retries = 10; |
5f828546 | 812 | unsigned int flags = 0; |
1da177e4 | 813 | |
5f828546 FT |
814 | if (!sense) |
815 | sense = &local_sense; | |
1da177e4 | 816 | |
5a3ea3b4 | 817 | /* start of retry loop */ |
1da177e4 | 818 | do { |
5f828546 | 819 | struct request *rq; |
1da177e4 | 820 | int error; |
1da177e4 | 821 | |
5f828546 FT |
822 | rq = blk_get_request(drive->queue, write, __GFP_WAIT); |
823 | ||
824 | memcpy(rq->cmd, cmd, BLK_MAX_CDB); | |
825 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
826 | rq->sense = sense; | |
827 | rq->cmd_flags |= cmd_flags; | |
828 | rq->timeout = timeout; | |
829 | if (buffer) { | |
830 | rq->data = buffer; | |
831 | rq->data_len = *bufflen; | |
832 | } | |
833 | ||
834 | error = blk_execute_rq(drive->queue, info->disk, rq, 0); | |
835 | ||
836 | if (buffer) | |
837 | *bufflen = rq->data_len; | |
838 | ||
839 | flags = rq->cmd_flags; | |
840 | blk_put_request(rq); | |
1da177e4 | 841 | |
5a3ea3b4 BP |
842 | /* |
843 | * FIXME: we should probably abort/retry or something in case of | |
844 | * failure. | |
845 | */ | |
5f828546 | 846 | if (flags & REQ_FAILED) { |
5a3ea3b4 BP |
847 | /* |
848 | * The request failed. Retry if it was due to a unit | |
849 | * attention status (usually means media was changed). | |
850 | */ | |
5f828546 | 851 | struct request_sense *reqbuf = sense; |
1da177e4 LT |
852 | |
853 | if (reqbuf->sense_key == UNIT_ATTENTION) | |
854 | cdrom_saw_media_change(drive); | |
855 | else if (reqbuf->sense_key == NOT_READY && | |
856 | reqbuf->asc == 4 && reqbuf->ascq != 4) { | |
5a3ea3b4 BP |
857 | /* |
858 | * The drive is in the process of loading | |
859 | * a disk. Retry, but wait a little to give | |
860 | * the drive time to complete the load. | |
861 | */ | |
1da177e4 LT |
862 | ssleep(2); |
863 | } else { | |
5a3ea3b4 | 864 | /* otherwise, don't retry */ |
1da177e4 LT |
865 | retries = 0; |
866 | } | |
867 | --retries; | |
868 | } | |
869 | ||
5a3ea3b4 | 870 | /* end of retry loop */ |
5f828546 | 871 | } while ((flags & REQ_FAILED) && retries >= 0); |
1da177e4 | 872 | |
5a3ea3b4 | 873 | /* return an error if the command failed */ |
5f828546 | 874 | return (flags & REQ_FAILED) ? -EIO : 0; |
1da177e4 LT |
875 | } |
876 | ||
aaa04c28 | 877 | /* |
5a3ea3b4 BP |
878 | * Called from blk_end_request_callback() after the data of the request is |
879 | * completed and before the request itself is completed. By returning value '1', | |
880 | * blk_end_request_callback() returns immediately without completing it. | |
aaa04c28 KU |
881 | */ |
882 | static int cdrom_newpc_intr_dummy_cb(struct request *rq) | |
883 | { | |
884 | return 1; | |
885 | } | |
886 | ||
1da177e4 LT |
887 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) |
888 | { | |
23579a2a | 889 | ide_hwif_t *hwif = drive->hwif; |
1da177e4 LT |
890 | struct cdrom_info *info = drive->driver_data; |
891 | struct request *rq = HWGROUP(drive)->rq; | |
1da177e4 | 892 | xfer_func_t *xferfunc; |
0041e7c6 | 893 | ide_expiry_t *expiry = NULL; |
1823649b | 894 | int dma_error = 0, dma, stat, thislen, uptodate = 0; |
ff1bfbc1 BZ |
895 | int write = (rq_data_dir(rq) == WRITE) ? 1 : 0; |
896 | unsigned int timeout; | |
1823649b BZ |
897 | u16 len; |
898 | u8 ireason; | |
1da177e4 | 899 | |
5a3ea3b4 | 900 | /* check for errors */ |
1da177e4 LT |
901 | dma = info->dma; |
902 | if (dma) { | |
903 | info->dma = 0; | |
5e37bdc0 | 904 | dma_error = hwif->dma_ops->dma_end(drive); |
eba15fba BZ |
905 | if (dma_error) { |
906 | printk(KERN_ERR "%s: DMA %s error\n", drive->name, | |
ff1bfbc1 | 907 | write ? "write" : "read"); |
eba15fba BZ |
908 | ide_dma_off(drive); |
909 | } | |
1da177e4 LT |
910 | } |
911 | ||
912 | if (cdrom_decode_status(drive, 0, &stat)) | |
913 | return ide_stopped; | |
914 | ||
5a3ea3b4 | 915 | /* using dma, transfer is complete now */ |
1da177e4 | 916 | if (dma) { |
eba15fba | 917 | if (dma_error) |
1da177e4 | 918 | return ide_error(drive, "dma error", stat); |
0041e7c6 BZ |
919 | if (blk_fs_request(rq)) { |
920 | ide_end_request(drive, 1, rq->nr_sectors); | |
921 | return ide_stopped; | |
922 | } | |
ff1bfbc1 | 923 | goto end_request; |
1da177e4 LT |
924 | } |
925 | ||
1823649b | 926 | ide_read_bcount_and_ireason(drive, &len, &ireason); |
0041e7c6 BZ |
927 | |
928 | thislen = blk_fs_request(rq) ? len : rq->data_len; | |
1da177e4 LT |
929 | if (thislen > len) |
930 | thislen = len; | |
931 | ||
5a3ea3b4 | 932 | /* If DRQ is clear, the command has completed. */ |
aaa04c28 | 933 | if ((stat & DRQ_STAT) == 0) { |
0041e7c6 BZ |
934 | if (blk_fs_request(rq)) { |
935 | /* | |
936 | * If we're not done reading/writing, complain. | |
937 | * Otherwise, complete the command normally. | |
938 | */ | |
939 | uptodate = 1; | |
940 | if (rq->current_nr_sectors > 0) { | |
941 | printk(KERN_ERR "%s: %s: data underrun " | |
942 | "(%d blocks)\n", | |
177773ed | 943 | drive->name, __func__, |
0041e7c6 BZ |
944 | rq->current_nr_sectors); |
945 | if (!write) | |
946 | rq->cmd_flags |= REQ_FAILED; | |
947 | uptodate = 0; | |
948 | } | |
949 | cdrom_end_request(drive, uptodate); | |
950 | return ide_stopped; | |
951 | } else if (!blk_pc_request(rq)) { | |
ff1bfbc1 | 952 | ide_cd_request_sense_fixup(rq); |
5a3ea3b4 | 953 | /* complain if we still have data left to transfer */ |
ff1bfbc1 BZ |
954 | uptodate = rq->data_len ? 0 : 1; |
955 | } | |
956 | goto end_request; | |
aaa04c28 | 957 | } |
1da177e4 | 958 | |
5a3ea3b4 | 959 | /* check which way to transfer data */ |
9f10d9ee BZ |
960 | if (ide_cd_check_ireason(drive, rq, len, ireason, write)) |
961 | return ide_stopped; | |
0041e7c6 | 962 | |
9f10d9ee BZ |
963 | if (blk_fs_request(rq)) { |
964 | if (write == 0) { | |
0041e7c6 BZ |
965 | int nskip; |
966 | ||
967 | if (ide_cd_check_transfer_size(drive, len)) { | |
968 | cdrom_end_request(drive, 0); | |
969 | return ide_stopped; | |
970 | } | |
971 | ||
972 | /* | |
973 | * First, figure out if we need to bit-bucket | |
974 | * any of the leading sectors. | |
975 | */ | |
976 | nskip = min_t(int, rq->current_nr_sectors | |
977 | - bio_cur_sectors(rq->bio), | |
978 | thislen >> 9); | |
979 | if (nskip > 0) { | |
ae8789f0 | 980 | ide_pad_transfer(drive, write, nskip << 9); |
0041e7c6 BZ |
981 | rq->current_nr_sectors -= nskip; |
982 | thislen -= (nskip << 9); | |
983 | } | |
984 | } | |
ff1bfbc1 | 985 | } |
1da177e4 | 986 | |
ff1bfbc1 BZ |
987 | if (ireason == 0) { |
988 | write = 1; | |
374e042c | 989 | xferfunc = hwif->tp_ops->output_data; |
9f10d9ee | 990 | } else { |
ff1bfbc1 | 991 | write = 0; |
374e042c | 992 | xferfunc = hwif->tp_ops->input_data; |
1da177e4 LT |
993 | } |
994 | ||
5a3ea3b4 | 995 | /* transfer data */ |
1da177e4 | 996 | while (thislen > 0) { |
0041e7c6 | 997 | u8 *ptr = blk_fs_request(rq) ? NULL : rq->data; |
a11e77db | 998 | int blen = rq->data_len; |
1da177e4 | 999 | |
5a3ea3b4 | 1000 | /* bio backed? */ |
1da177e4 | 1001 | if (rq->bio) { |
0041e7c6 BZ |
1002 | if (blk_fs_request(rq)) { |
1003 | ptr = rq->buffer; | |
1004 | blen = rq->current_nr_sectors << 9; | |
1005 | } else { | |
1006 | ptr = bio_data(rq->bio); | |
1007 | blen = bio_iovec(rq->bio)->bv_len; | |
1008 | } | |
1da177e4 LT |
1009 | } |
1010 | ||
1011 | if (!ptr) { | |
0041e7c6 BZ |
1012 | if (blk_fs_request(rq) && !write) |
1013 | /* | |
968c4964 | 1014 | * If the buffers are full, pipe the rest into |
5a3ea3b4 BP |
1015 | * oblivion. |
1016 | */ | |
ae8789f0 | 1017 | ide_pad_transfer(drive, 0, thislen); |
0041e7c6 BZ |
1018 | else { |
1019 | printk(KERN_ERR "%s: confused, missing data\n", | |
1020 | drive->name); | |
1021 | blk_dump_rq_flags(rq, rq_data_dir(rq) | |
1022 | ? "cdrom_newpc_intr, write" | |
1023 | : "cdrom_newpc_intr, read"); | |
1024 | } | |
1da177e4 LT |
1025 | break; |
1026 | } | |
1027 | ||
1028 | if (blen > thislen) | |
1029 | blen = thislen; | |
1030 | ||
9567b349 | 1031 | xferfunc(drive, NULL, ptr, blen); |
1da177e4 LT |
1032 | |
1033 | thislen -= blen; | |
1034 | len -= blen; | |
1da177e4 | 1035 | |
0041e7c6 BZ |
1036 | if (blk_fs_request(rq)) { |
1037 | rq->buffer += blen; | |
1038 | rq->nr_sectors -= (blen >> 9); | |
1039 | rq->current_nr_sectors -= (blen >> 9); | |
1040 | rq->sector += (blen >> 9); | |
1041 | ||
1042 | if (rq->current_nr_sectors == 0 && rq->nr_sectors) | |
1043 | cdrom_end_request(drive, 1); | |
1044 | } else { | |
1045 | rq->data_len -= blen; | |
1046 | ||
aaa04c28 KU |
1047 | /* |
1048 | * The request can't be completed until DRQ is cleared. | |
1049 | * So complete the data, but don't complete the request | |
1050 | * using the dummy function for the callback feature | |
1051 | * of blk_end_request_callback(). | |
1052 | */ | |
0041e7c6 BZ |
1053 | if (rq->bio) |
1054 | blk_end_request_callback(rq, 0, blen, | |
aaa04c28 | 1055 | cdrom_newpc_intr_dummy_cb); |
0041e7c6 BZ |
1056 | else |
1057 | rq->data += blen; | |
1058 | } | |
bcd88ac3 AS |
1059 | if (!write && blk_sense_request(rq)) |
1060 | rq->sense_len += blen; | |
1da177e4 LT |
1061 | } |
1062 | ||
5a3ea3b4 | 1063 | /* pad, if necessary */ |
0041e7c6 | 1064 | if (!blk_fs_request(rq) && len > 0) |
ae8789f0 | 1065 | ide_pad_transfer(drive, write, len); |
1da177e4 | 1066 | |
ff1bfbc1 BZ |
1067 | if (blk_pc_request(rq)) { |
1068 | timeout = rq->timeout; | |
ff1bfbc1 BZ |
1069 | } else { |
1070 | timeout = ATAPI_WAIT_PC; | |
0041e7c6 BZ |
1071 | if (!blk_fs_request(rq)) |
1072 | expiry = cdrom_timer_expiry; | |
ff1bfbc1 BZ |
1073 | } |
1074 | ||
1075 | ide_set_handler(drive, cdrom_newpc_intr, timeout, expiry); | |
1da177e4 | 1076 | return ide_started; |
ff1bfbc1 BZ |
1077 | |
1078 | end_request: | |
1079 | if (blk_pc_request(rq)) { | |
1080 | unsigned long flags; | |
14e04c3f KU |
1081 | unsigned int dlen = rq->data_len; |
1082 | ||
1083 | if (dma) | |
1084 | rq->data_len = 0; | |
ff1bfbc1 BZ |
1085 | |
1086 | spin_lock_irqsave(&ide_lock, flags); | |
14e04c3f | 1087 | if (__blk_end_request(rq, 0, dlen)) |
ff1bfbc1 BZ |
1088 | BUG(); |
1089 | HWGROUP(drive)->rq = NULL; | |
1090 | spin_unlock_irqrestore(&ide_lock, flags); | |
1091 | } else { | |
1092 | if (!uptodate) | |
1093 | rq->cmd_flags |= REQ_FAILED; | |
1094 | cdrom_end_request(drive, uptodate); | |
1095 | } | |
1096 | return ide_stopped; | |
1da177e4 LT |
1097 | } |
1098 | ||
21ea1f0f | 1099 | static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) |
1da177e4 | 1100 | { |
21ea1f0f BZ |
1101 | struct cdrom_info *cd = drive->driver_data; |
1102 | int write = rq_data_dir(rq) == WRITE; | |
1103 | unsigned short sectors_per_frame = | |
1104 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
1da177e4 | 1105 | |
21ea1f0f | 1106 | if (write) { |
5a3ea3b4 | 1107 | /* disk has become write protected */ |
21ea1f0f BZ |
1108 | if (cd->disk->policy) { |
1109 | cdrom_end_request(drive, 0); | |
1110 | return ide_stopped; | |
1111 | } | |
1112 | } else { | |
1113 | /* | |
1114 | * We may be retrying this request after an error. Fix up any | |
1115 | * weirdness which might be present in the request packet. | |
1116 | */ | |
1117 | restore_request(rq); | |
1da177e4 LT |
1118 | } |
1119 | ||
5a3ea3b4 | 1120 | /* use DMA, if possible / writes *must* be hardware frame aligned */ |
21ea1f0f BZ |
1121 | if ((rq->nr_sectors & (sectors_per_frame - 1)) || |
1122 | (rq->sector & (sectors_per_frame - 1))) { | |
1123 | if (write) { | |
1124 | cdrom_end_request(drive, 0); | |
1125 | return ide_stopped; | |
1126 | } | |
1127 | cd->dma = 0; | |
1128 | } else | |
1129 | cd->dma = drive->using_dma; | |
1da177e4 | 1130 | |
21ea1f0f BZ |
1131 | if (write) |
1132 | cd->devinfo.media_written = 1; | |
1da177e4 | 1133 | |
b6ca440a | 1134 | return ide_started; |
1da177e4 LT |
1135 | } |
1136 | ||
1137 | static ide_startstop_t cdrom_do_newpc_cont(ide_drive_t *drive) | |
1138 | { | |
1139 | struct request *rq = HWGROUP(drive)->rq; | |
1140 | ||
1da177e4 LT |
1141 | return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr); |
1142 | } | |
1143 | ||
b6ca440a | 1144 | static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) |
1da177e4 LT |
1145 | { |
1146 | struct cdrom_info *info = drive->driver_data; | |
1147 | ||
c9f56a80 BZ |
1148 | if (blk_pc_request(rq)) |
1149 | rq->cmd_flags |= REQ_QUIET; | |
1150 | else | |
1151 | rq->cmd_flags &= ~REQ_FAILED; | |
1da177e4 LT |
1152 | |
1153 | info->dma = 0; | |
1da177e4 | 1154 | |
5a3ea3b4 | 1155 | /* sg request */ |
e5318b53 FT |
1156 | if (rq->bio || ((rq->cmd_type == REQ_TYPE_ATA_PC) && rq->data_len)) { |
1157 | struct request_queue *q = drive->queue; | |
1158 | unsigned int alignment; | |
1159 | unsigned long addr; | |
0b6abc17 | 1160 | unsigned long stack_mask = ~(THREAD_SIZE - 1); |
1da177e4 | 1161 | |
e5318b53 FT |
1162 | if (rq->bio) |
1163 | addr = (unsigned long)bio_data(rq->bio); | |
1164 | else | |
1165 | addr = (unsigned long)rq->data; | |
1166 | ||
1da177e4 LT |
1167 | info->dma = drive->using_dma; |
1168 | ||
1169 | /* | |
1170 | * check if dma is safe | |
5d9e4ea5 LT |
1171 | * |
1172 | * NOTE! The "len" and "addr" checks should possibly have | |
1173 | * separate masks. | |
1da177e4 | 1174 | */ |
e5318b53 FT |
1175 | alignment = queue_dma_alignment(q) | q->dma_pad_mask; |
1176 | if (addr & alignment || rq->data_len & alignment) | |
1da177e4 | 1177 | info->dma = 0; |
0b6abc17 FT |
1178 | |
1179 | if (!((addr & stack_mask) ^ | |
1180 | ((unsigned long)current->stack & stack_mask))) | |
1181 | info->dma = 0; | |
1da177e4 | 1182 | } |
1da177e4 LT |
1183 | } |
1184 | ||
5a3ea3b4 | 1185 | /* |
1da177e4 LT |
1186 | * cdrom driver request routine. |
1187 | */ | |
99384aea | 1188 | static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, |
e5e076a3 | 1189 | sector_t block) |
1da177e4 | 1190 | { |
1da177e4 | 1191 | struct cdrom_info *info = drive->driver_data; |
b6ca440a BP |
1192 | ide_handler_t *fn; |
1193 | int xferlen; | |
1da177e4 LT |
1194 | |
1195 | if (blk_fs_request(rq)) { | |
570f89ea | 1196 | if (drive->atapi_flags & IDE_AFLAG_SEEKING) { |
b73c7ee2 | 1197 | ide_hwif_t *hwif = drive->hwif; |
1da177e4 | 1198 | unsigned long elapsed = jiffies - info->start_seek; |
374e042c | 1199 | int stat = hwif->tp_ops->read_status(hwif); |
1da177e4 LT |
1200 | |
1201 | if ((stat & SEEK_STAT) != SEEK_STAT) { | |
1202 | if (elapsed < IDECD_SEEK_TIMEOUT) { | |
83c8565d BP |
1203 | ide_stall_queue(drive, |
1204 | IDECD_SEEK_TIMER); | |
1da177e4 LT |
1205 | return ide_stopped; |
1206 | } | |
83c8565d BP |
1207 | printk(KERN_ERR "%s: DSC timeout\n", |
1208 | drive->name); | |
1da177e4 | 1209 | } |
570f89ea | 1210 | drive->atapi_flags &= ~IDE_AFLAG_SEEKING; |
1da177e4 | 1211 | } |
83c8565d BP |
1212 | if (rq_data_dir(rq) == READ && |
1213 | IDE_LARGE_SEEK(info->last_block, block, | |
b6ca440a BP |
1214 | IDECD_SEEK_THRESHOLD) && |
1215 | drive->dsc_overlap) { | |
1216 | xferlen = 0; | |
1217 | fn = cdrom_start_seek_continuation; | |
e529c608 | 1218 | |
4b01fcbb BP |
1219 | info->dma = 0; |
1220 | info->start_seek = jiffies; | |
e529c608 BP |
1221 | |
1222 | ide_cd_prepare_seek_request(drive, rq); | |
b6ca440a BP |
1223 | } else { |
1224 | xferlen = 32768; | |
1225 | fn = cdrom_start_rw_cont; | |
90eb808e | 1226 | |
b6ca440a BP |
1227 | if (cdrom_start_rw(drive, rq) == ide_stopped) |
1228 | return ide_stopped; | |
90eb808e BP |
1229 | |
1230 | if (ide_cd_prepare_rw_request(drive, rq) == ide_stopped) | |
1231 | return ide_stopped; | |
b6ca440a | 1232 | } |
1da177e4 | 1233 | info->last_block = block; |
c9f56a80 | 1234 | } else if (blk_sense_request(rq) || blk_pc_request(rq) || |
cea2885a | 1235 | rq->cmd_type == REQ_TYPE_ATA_PC) { |
b6ca440a BP |
1236 | xferlen = rq->data_len; |
1237 | fn = cdrom_do_newpc_cont; | |
7fcebda5 BP |
1238 | |
1239 | if (!rq->timeout) | |
1240 | rq->timeout = ATAPI_WAIT_PC; | |
1241 | ||
b6ca440a | 1242 | cdrom_do_block_pc(drive, rq); |
4aff5e23 | 1243 | } else if (blk_special_request(rq)) { |
5a3ea3b4 | 1244 | /* right now this can only be a reset... */ |
1da177e4 LT |
1245 | cdrom_end_request(drive, 1); |
1246 | return ide_stopped; | |
ab9d6e33 BP |
1247 | } else { |
1248 | blk_dump_rq_flags(rq, "ide-cd bad flags"); | |
1249 | cdrom_end_request(drive, 0); | |
1250 | return ide_stopped; | |
1da177e4 | 1251 | } |
b6ca440a BP |
1252 | |
1253 | return cdrom_start_packet_command(drive, xferlen, fn); | |
1da177e4 LT |
1254 | } |
1255 | ||
5a3ea3b4 | 1256 | /* |
1da177e4 LT |
1257 | * Ioctl handling. |
1258 | * | |
5a3ea3b4 BP |
1259 | * Routines which queue packet commands take as a final argument a pointer to a |
1260 | * request_sense struct. If execution of the command results in an error with a | |
1261 | * CHECK CONDITION status, this structure will be filled with the results of the | |
1262 | * subsequent request sense command. The pointer can also be NULL, in which case | |
1263 | * no sense information is returned. | |
1da177e4 | 1264 | */ |
e5e076a3 | 1265 | static void msf_from_bcd(struct atapi_msf *msf) |
1da177e4 | 1266 | { |
9a6dc668 BZ |
1267 | msf->minute = BCD2BIN(msf->minute); |
1268 | msf->second = BCD2BIN(msf->second); | |
1269 | msf->frame = BCD2BIN(msf->frame); | |
1da177e4 LT |
1270 | } |
1271 | ||
f9afd18b | 1272 | int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 | 1273 | { |
1da177e4 LT |
1274 | struct cdrom_info *info = drive->driver_data; |
1275 | struct cdrom_device_info *cdi = &info->devinfo; | |
5f828546 | 1276 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1277 | |
5f828546 FT |
1278 | memset(cmd, 0, BLK_MAX_CDB); |
1279 | cmd[0] = GPCMD_TEST_UNIT_READY; | |
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 | */ |
5f828546 | 1285 | cmd[7] = cdi->sanyo_slot % 3; |
1da177e4 | 1286 | |
141d3b27 | 1287 | return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET); |
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 { | |
141d3b27 HH |
1295 | __be32 lba; |
1296 | __be32 blocklen; | |
1da177e4 LT |
1297 | } capbuf; |
1298 | ||
1299 | int stat; | |
5f828546 FT |
1300 | unsigned char cmd[BLK_MAX_CDB]; |
1301 | unsigned len = sizeof(capbuf); | |
1da177e4 | 1302 | |
5f828546 FT |
1303 | memset(cmd, 0, BLK_MAX_CDB); |
1304 | cmd[0] = GPCMD_READ_CDVD_CAPACITY; | |
1da177e4 | 1305 | |
5f828546 FT |
1306 | stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, |
1307 | REQ_QUIET); | |
1da177e4 LT |
1308 | if (stat == 0) { |
1309 | *capacity = 1 + be32_to_cpu(capbuf.lba); | |
1310 | *sectors_per_frame = | |
1311 | be32_to_cpu(capbuf.blocklen) >> SECTOR_BITS; | |
1312 | } | |
1313 | ||
1314 | return stat; | |
1315 | } | |
1316 | ||
1317 | static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, | |
1318 | int format, char *buf, int buflen, | |
1319 | struct request_sense *sense) | |
1320 | { | |
5f828546 | 1321 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1322 | |
5f828546 | 1323 | memset(cmd, 0, BLK_MAX_CDB); |
1da177e4 | 1324 | |
5f828546 FT |
1325 | cmd[0] = GPCMD_READ_TOC_PMA_ATIP; |
1326 | cmd[6] = trackno; | |
1327 | cmd[7] = (buflen >> 8); | |
1328 | cmd[8] = (buflen & 0xff); | |
1329 | cmd[9] = (format << 6); | |
1da177e4 LT |
1330 | |
1331 | if (msf_flag) | |
5f828546 | 1332 | cmd[1] = 2; |
1da177e4 | 1333 | |
5f828546 | 1334 | return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); |
1da177e4 LT |
1335 | } |
1336 | ||
1da177e4 | 1337 | /* Try to read the entire TOC for the disk into our internal buffer. */ |
17802998 | 1338 | int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 LT |
1339 | { |
1340 | int stat, ntracks, i; | |
1341 | struct cdrom_info *info = drive->driver_data; | |
1342 | struct cdrom_device_info *cdi = &info->devinfo; | |
1343 | struct atapi_toc *toc = info->toc; | |
1344 | struct { | |
1345 | struct atapi_toc_header hdr; | |
1346 | struct atapi_toc_entry ent; | |
1347 | } ms_tmp; | |
1348 | long last_written; | |
1349 | unsigned long sectors_per_frame = SECTORS_PER_FRAME; | |
1350 | ||
1351 | if (toc == NULL) { | |
5a3ea3b4 | 1352 | /* try to allocate space */ |
2a91f3e5 | 1353 | toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); |
1da177e4 | 1354 | if (toc == NULL) { |
83c8565d BP |
1355 | printk(KERN_ERR "%s: No cdrom TOC buffer!\n", |
1356 | drive->name); | |
1da177e4 LT |
1357 | return -ENOMEM; |
1358 | } | |
2a91f3e5 | 1359 | info->toc = toc; |
1da177e4 LT |
1360 | } |
1361 | ||
5a3ea3b4 BP |
1362 | /* |
1363 | * Check to see if the existing data is still valid. If it is, | |
1364 | * just return. | |
1365 | */ | |
1da177e4 LT |
1366 | (void) cdrom_check_status(drive, sense); |
1367 | ||
570f89ea | 1368 | if (drive->atapi_flags & IDE_AFLAG_TOC_VALID) |
1da177e4 LT |
1369 | return 0; |
1370 | ||
5a3ea3b4 | 1371 | /* try to get the total cdrom capacity and sector size */ |
1da177e4 LT |
1372 | stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame, |
1373 | sense); | |
1374 | if (stat) | |
1375 | toc->capacity = 0x1fffff; | |
1376 | ||
1377 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
5a3ea3b4 | 1378 | /* save a private copy of the TOC capacity for error handling */ |
dbe217af AC |
1379 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1380 | ||
1da177e4 LT |
1381 | blk_queue_hardsect_size(drive->queue, |
1382 | sectors_per_frame << SECTOR_BITS); | |
1383 | ||
5a3ea3b4 | 1384 | /* first read just the header, so we know how long the TOC is */ |
1da177e4 LT |
1385 | stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, |
1386 | sizeof(struct atapi_toc_header), sense); | |
2a91f3e5 JJ |
1387 | if (stat) |
1388 | return stat; | |
1da177e4 | 1389 | |
570f89ea | 1390 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
9a6dc668 BZ |
1391 | toc->hdr.first_track = BCD2BIN(toc->hdr.first_track); |
1392 | toc->hdr.last_track = BCD2BIN(toc->hdr.last_track); | |
1da177e4 | 1393 | } |
1da177e4 LT |
1394 | |
1395 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; | |
1396 | if (ntracks <= 0) | |
1397 | return -EIO; | |
1398 | if (ntracks > MAX_TRACKS) | |
1399 | ntracks = MAX_TRACKS; | |
1400 | ||
5a3ea3b4 | 1401 | /* now read the whole schmeer */ |
1da177e4 LT |
1402 | stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, |
1403 | (char *)&toc->hdr, | |
1404 | sizeof(struct atapi_toc_header) + | |
1405 | (ntracks + 1) * | |
1406 | sizeof(struct atapi_toc_entry), sense); | |
1407 | ||
1408 | if (stat && toc->hdr.first_track > 1) { | |
5a3ea3b4 BP |
1409 | /* |
1410 | * Cds with CDI tracks only don't have any TOC entries, despite | |
1411 | * of this the returned values are | |
1412 | * first_track == last_track = number of CDI tracks + 1, | |
1413 | * so that this case is indistinguishable from the same layout | |
1414 | * plus an additional audio track. If we get an error for the | |
1415 | * regular case, we assume a CDI without additional audio | |
1416 | * tracks. In this case the readable TOC is empty (CDI tracks | |
1417 | * are not included) and only holds the Leadout entry. | |
1418 | * | |
1419 | * Heiko Eißfeldt. | |
1420 | */ | |
1da177e4 LT |
1421 | ntracks = 0; |
1422 | stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, | |
1423 | (char *)&toc->hdr, | |
1424 | sizeof(struct atapi_toc_header) + | |
1425 | (ntracks + 1) * | |
1426 | sizeof(struct atapi_toc_entry), | |
1427 | sense); | |
cdf6000d | 1428 | if (stat) |
1da177e4 | 1429 | return stat; |
cdf6000d | 1430 | |
570f89ea | 1431 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
9a6dc668 BZ |
1432 | toc->hdr.first_track = (u8)BIN2BCD(CDROM_LEADOUT); |
1433 | toc->hdr.last_track = (u8)BIN2BCD(CDROM_LEADOUT); | |
cdf6000d | 1434 | } else { |
1da177e4 LT |
1435 | toc->hdr.first_track = CDROM_LEADOUT; |
1436 | toc->hdr.last_track = CDROM_LEADOUT; | |
1437 | } | |
1438 | } | |
1439 | ||
1440 | if (stat) | |
1441 | return stat; | |
1442 | ||
7eb43fd2 | 1443 | toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); |
1da177e4 | 1444 | |
570f89ea | 1445 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
9a6dc668 BZ |
1446 | toc->hdr.first_track = BCD2BIN(toc->hdr.first_track); |
1447 | toc->hdr.last_track = BCD2BIN(toc->hdr.last_track); | |
1da177e4 | 1448 | } |
1da177e4 | 1449 | |
cdf6000d | 1450 | for (i = 0; i <= ntracks; i++) { |
570f89ea BP |
1451 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
1452 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) | |
9a6dc668 | 1453 | toc->ent[i].track = BCD2BIN(toc->ent[i].track); |
1da177e4 LT |
1454 | msf_from_bcd(&toc->ent[i].addr.msf); |
1455 | } | |
9ce70fb2 PC |
1456 | toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, |
1457 | toc->ent[i].addr.msf.second, | |
1458 | toc->ent[i].addr.msf.frame); | |
1da177e4 LT |
1459 | } |
1460 | ||
1da177e4 | 1461 | if (toc->hdr.first_track != CDROM_LEADOUT) { |
5a3ea3b4 | 1462 | /* read the multisession information */ |
1da177e4 LT |
1463 | stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, |
1464 | sizeof(ms_tmp), sense); | |
2a91f3e5 JJ |
1465 | if (stat) |
1466 | return stat; | |
1da177e4 LT |
1467 | |
1468 | toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); | |
1469 | } else { | |
e5e076a3 BP |
1470 | ms_tmp.hdr.last_track = CDROM_LEADOUT; |
1471 | ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; | |
1da177e4 LT |
1472 | toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ |
1473 | } | |
1474 | ||
570f89ea | 1475 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
5a3ea3b4 | 1476 | /* re-read multisession information using MSF format */ |
1da177e4 LT |
1477 | stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, |
1478 | sizeof(ms_tmp), sense); | |
1479 | if (stat) | |
1480 | return stat; | |
1481 | ||
9ce70fb2 | 1482 | msf_from_bcd(&ms_tmp.ent.addr.msf); |
1da177e4 | 1483 | toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, |
9ce70fb2 | 1484 | ms_tmp.ent.addr.msf.second, |
1da177e4 LT |
1485 | ms_tmp.ent.addr.msf.frame); |
1486 | } | |
1da177e4 LT |
1487 | |
1488 | toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); | |
1489 | ||
5a3ea3b4 | 1490 | /* now try to get the total cdrom capacity */ |
1da177e4 LT |
1491 | stat = cdrom_get_last_written(cdi, &last_written); |
1492 | if (!stat && (last_written > toc->capacity)) { | |
1493 | toc->capacity = last_written; | |
1494 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
dbe217af | 1495 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1da177e4 LT |
1496 | } |
1497 | ||
1498 | /* Remember that we've read this stuff. */ | |
570f89ea | 1499 | drive->atapi_flags |= IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
1500 | |
1501 | return 0; | |
1502 | } | |
1503 | ||
17802998 | 1504 | int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) |
9235e68b EP |
1505 | { |
1506 | struct cdrom_info *info = drive->driver_data; | |
1507 | struct cdrom_device_info *cdi = &info->devinfo; | |
1508 | struct packet_command cgc; | |
455d80a9 | 1509 | int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; |
9235e68b | 1510 | |
570f89ea | 1511 | if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0) |
455d80a9 | 1512 | size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; |
9235e68b | 1513 | |
455d80a9 | 1514 | init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); |
5a3ea3b4 BP |
1515 | do { |
1516 | /* we seem to get stat=0x01,err=0x00 the first time (??) */ | |
9235e68b EP |
1517 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); |
1518 | if (!stat) | |
1519 | break; | |
1520 | } while (--attempts); | |
1521 | return stat; | |
1522 | } | |
1523 | ||
17802998 | 1524 | void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) |
9235e68b | 1525 | { |
4fe67178 | 1526 | struct cdrom_info *cd = drive->driver_data; |
481c8c64 BZ |
1527 | u16 curspeed, maxspeed; |
1528 | ||
570f89ea | 1529 | if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) { |
141d3b27 HH |
1530 | curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]); |
1531 | maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]); | |
9235e68b | 1532 | } else { |
141d3b27 HH |
1533 | curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]); |
1534 | maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]); | |
9235e68b | 1535 | } |
481c8c64 | 1536 | |
2bc4cf2d BZ |
1537 | cd->current_speed = (curspeed + (176/2)) / 176; |
1538 | cd->max_speed = (maxspeed + (176/2)) / 176; | |
9235e68b EP |
1539 | } |
1540 | ||
20e7f7ef BZ |
1541 | #define IDE_CD_CAPABILITIES \ |
1542 | (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ | |
1543 | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ | |
1544 | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ | |
1545 | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ | |
1546 | CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) | |
1da177e4 | 1547 | |
1da177e4 LT |
1548 | static struct cdrom_device_ops ide_cdrom_dops = { |
1549 | .open = ide_cdrom_open_real, | |
1550 | .release = ide_cdrom_release_real, | |
1551 | .drive_status = ide_cdrom_drive_status, | |
1552 | .media_changed = ide_cdrom_check_media_change_real, | |
1553 | .tray_move = ide_cdrom_tray_move, | |
1554 | .lock_door = ide_cdrom_lock_door, | |
1555 | .select_speed = ide_cdrom_select_speed, | |
1556 | .get_last_session = ide_cdrom_get_last_session, | |
1557 | .get_mcn = ide_cdrom_get_mcn, | |
1558 | .reset = ide_cdrom_reset, | |
1559 | .audio_ioctl = ide_cdrom_audio_ioctl, | |
20e7f7ef | 1560 | .capability = IDE_CD_CAPABILITIES, |
1da177e4 LT |
1561 | .generic_packet = ide_cdrom_packet, |
1562 | }; | |
1563 | ||
9ce70fb2 | 1564 | static int ide_cdrom_register(ide_drive_t *drive, int nslots) |
1da177e4 LT |
1565 | { |
1566 | struct cdrom_info *info = drive->driver_data; | |
1567 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1568 | ||
1569 | devinfo->ops = &ide_cdrom_dops; | |
2bc4cf2d | 1570 | devinfo->speed = info->current_speed; |
1da177e4 | 1571 | devinfo->capacity = nslots; |
2a91f3e5 | 1572 | devinfo->handle = drive; |
1da177e4 | 1573 | strcpy(devinfo->name, drive->name); |
1da177e4 | 1574 | |
570f89ea | 1575 | if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT) |
3cbd814e BZ |
1576 | devinfo->mask |= CDC_SELECT_SPEED; |
1577 | ||
1da177e4 LT |
1578 | devinfo->disk = info->disk; |
1579 | return register_cdrom(devinfo); | |
1580 | } | |
1581 | ||
e5e076a3 | 1582 | static int ide_cdrom_probe_capabilities(ide_drive_t *drive) |
1da177e4 | 1583 | { |
4fe67178 BZ |
1584 | struct cdrom_info *cd = drive->driver_data; |
1585 | struct cdrom_device_info *cdi = &cd->devinfo; | |
455d80a9 BZ |
1586 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; |
1587 | mechtype_t mechtype; | |
1da177e4 LT |
1588 | int nslots = 1; |
1589 | ||
3f1b86d8 BZ |
1590 | cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | |
1591 | CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | | |
1592 | CDC_MO_DRIVE | CDC_RAM); | |
1593 | ||
1da177e4 | 1594 | if (drive->media == ide_optical) { |
3f1b86d8 | 1595 | cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); |
83c8565d BP |
1596 | printk(KERN_ERR "%s: ATAPI magneto-optical drive\n", |
1597 | drive->name); | |
1da177e4 LT |
1598 | return nslots; |
1599 | } | |
1600 | ||
570f89ea BP |
1601 | if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) { |
1602 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; | |
3f1b86d8 | 1603 | cdi->mask &= ~CDC_PLAY_AUDIO; |
1da177e4 LT |
1604 | return nslots; |
1605 | } | |
1606 | ||
1607 | /* | |
5a3ea3b4 BP |
1608 | * We have to cheat a little here. the packet will eventually be queued |
1609 | * with ide_cdrom_packet(), which extracts the drive from cdi->handle. | |
1610 | * Since this device hasn't been registered with the Uniform layer yet, | |
1611 | * it can't do this. Same goes for cdi->ops. | |
1da177e4 | 1612 | */ |
2a91f3e5 | 1613 | cdi->handle = drive; |
1da177e4 LT |
1614 | cdi->ops = &ide_cdrom_dops; |
1615 | ||
455d80a9 | 1616 | if (ide_cdrom_get_capabilities(drive, buf)) |
1da177e4 LT |
1617 | return 0; |
1618 | ||
455d80a9 | 1619 | if ((buf[8 + 6] & 0x01) == 0) |
570f89ea | 1620 | drive->atapi_flags |= IDE_AFLAG_NO_DOORLOCK; |
455d80a9 | 1621 | if (buf[8 + 6] & 0x08) |
570f89ea | 1622 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; |
455d80a9 | 1623 | if (buf[8 + 3] & 0x01) |
3f1b86d8 | 1624 | cdi->mask &= ~CDC_CD_R; |
455d80a9 | 1625 | if (buf[8 + 3] & 0x02) |
3f1b86d8 | 1626 | cdi->mask &= ~(CDC_CD_RW | CDC_RAM); |
455d80a9 | 1627 | if (buf[8 + 2] & 0x38) |
3f1b86d8 | 1628 | cdi->mask &= ~CDC_DVD; |
455d80a9 | 1629 | if (buf[8 + 3] & 0x20) |
3f1b86d8 | 1630 | cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); |
455d80a9 | 1631 | if (buf[8 + 3] & 0x10) |
3f1b86d8 | 1632 | cdi->mask &= ~CDC_DVD_R; |
570f89ea | 1633 | if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK)) |
3f1b86d8 | 1634 | cdi->mask &= ~CDC_PLAY_AUDIO; |
455d80a9 BZ |
1635 | |
1636 | mechtype = buf[8 + 6] >> 5; | |
1637 | if (mechtype == mechtype_caddy || mechtype == mechtype_popup) | |
3f1b86d8 | 1638 | cdi->mask |= CDC_CLOSE_TRAY; |
1da177e4 | 1639 | |
1da177e4 | 1640 | if (cdi->sanyo_slot > 0) { |
3f1b86d8 | 1641 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 | 1642 | nslots = 3; |
cdf6000d BZ |
1643 | } else if (mechtype == mechtype_individual_changer || |
1644 | mechtype == mechtype_cartridge_changer) { | |
2609d06d BZ |
1645 | nslots = cdrom_number_of_slots(cdi); |
1646 | if (nslots > 1) | |
3f1b86d8 | 1647 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 LT |
1648 | } |
1649 | ||
455d80a9 | 1650 | ide_cdrom_update_speed(drive, buf); |
4fe67178 | 1651 | |
1da177e4 | 1652 | printk(KERN_INFO "%s: ATAPI", drive->name); |
4fe67178 BZ |
1653 | |
1654 | /* don't print speed if the drive reported 0 */ | |
2bc4cf2d BZ |
1655 | if (cd->max_speed) |
1656 | printk(KERN_CONT " %dX", cd->max_speed); | |
4fe67178 | 1657 | |
3f1b86d8 | 1658 | printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); |
1da177e4 | 1659 | |
3f1b86d8 BZ |
1660 | if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) |
1661 | printk(KERN_CONT " DVD%s%s", | |
1662 | (cdi->mask & CDC_DVD_R) ? "" : "-R", | |
1663 | (cdi->mask & CDC_DVD_RAM) ? "" : "-RAM"); | |
1da177e4 | 1664 | |
3f1b86d8 BZ |
1665 | if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) |
1666 | printk(KERN_CONT " CD%s%s", | |
1667 | (cdi->mask & CDC_CD_R) ? "" : "-R", | |
1668 | (cdi->mask & CDC_CD_RW) ? "" : "/RW"); | |
1da177e4 | 1669 | |
3f1b86d8 BZ |
1670 | if ((cdi->mask & CDC_SELECT_DISC) == 0) |
1671 | printk(KERN_CONT " changer w/%d slots", nslots); | |
1672 | else | |
1673 | printk(KERN_CONT " drive"); | |
1da177e4 | 1674 | |
141d3b27 | 1675 | printk(KERN_CONT ", %dkB Cache\n", be16_to_cpup((__be16 *)&buf[8 + 12])); |
1da177e4 LT |
1676 | |
1677 | return nslots; | |
1678 | } | |
1679 | ||
5a3ea3b4 | 1680 | /* standard prep_rq_fn that builds 10 byte cmds */ |
165125e1 | 1681 | static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) |
1da177e4 LT |
1682 | { |
1683 | int hard_sect = queue_hardsect_size(q); | |
1684 | long block = (long)rq->hard_sector / (hard_sect >> 9); | |
1685 | unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9); | |
1686 | ||
d34c87e4 | 1687 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
1688 | |
1689 | if (rq_data_dir(rq) == READ) | |
1690 | rq->cmd[0] = GPCMD_READ_10; | |
1691 | else | |
1692 | rq->cmd[0] = GPCMD_WRITE_10; | |
1693 | ||
1694 | /* | |
1695 | * fill in lba | |
1696 | */ | |
1697 | rq->cmd[2] = (block >> 24) & 0xff; | |
1698 | rq->cmd[3] = (block >> 16) & 0xff; | |
1699 | rq->cmd[4] = (block >> 8) & 0xff; | |
1700 | rq->cmd[5] = block & 0xff; | |
1701 | ||
1702 | /* | |
1703 | * and transfer length | |
1704 | */ | |
1705 | rq->cmd[7] = (blocks >> 8) & 0xff; | |
1706 | rq->cmd[8] = blocks & 0xff; | |
1707 | rq->cmd_len = 10; | |
1708 | return BLKPREP_OK; | |
1709 | } | |
1710 | ||
1711 | /* | |
1712 | * Most of the SCSI commands are supported directly by ATAPI devices. | |
1713 | * This transform handles the few exceptions. | |
1714 | */ | |
1715 | static int ide_cdrom_prep_pc(struct request *rq) | |
1716 | { | |
1717 | u8 *c = rq->cmd; | |
1718 | ||
5a3ea3b4 | 1719 | /* transform 6-byte read/write commands to the 10-byte version */ |
1da177e4 LT |
1720 | if (c[0] == READ_6 || c[0] == WRITE_6) { |
1721 | c[8] = c[4]; | |
1722 | c[5] = c[3]; | |
1723 | c[4] = c[2]; | |
1724 | c[3] = c[1] & 0x1f; | |
1725 | c[2] = 0; | |
1726 | c[1] &= 0xe0; | |
1727 | c[0] += (READ_10 - READ_6); | |
1728 | rq->cmd_len = 10; | |
1729 | return BLKPREP_OK; | |
1730 | } | |
1731 | ||
1732 | /* | |
1733 | * it's silly to pretend we understand 6-byte sense commands, just | |
1734 | * reject with ILLEGAL_REQUEST and the caller should take the | |
1735 | * appropriate action | |
1736 | */ | |
1737 | if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { | |
1738 | rq->errors = ILLEGAL_REQUEST; | |
1739 | return BLKPREP_KILL; | |
1740 | } | |
9ce70fb2 | 1741 | |
1da177e4 LT |
1742 | return BLKPREP_OK; |
1743 | } | |
1744 | ||
165125e1 | 1745 | static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) |
1da177e4 | 1746 | { |
4aff5e23 | 1747 | if (blk_fs_request(rq)) |
1da177e4 | 1748 | return ide_cdrom_prep_fs(q, rq); |
4aff5e23 | 1749 | else if (blk_pc_request(rq)) |
1da177e4 LT |
1750 | return ide_cdrom_prep_pc(rq); |
1751 | ||
1752 | return 0; | |
1753 | } | |
1754 | ||
e59724c7 BZ |
1755 | struct cd_list_entry { |
1756 | const char *id_model; | |
1757 | const char *id_firmware; | |
1758 | unsigned int cd_flags; | |
1759 | }; | |
1760 | ||
5e657a9e BP |
1761 | #ifdef CONFIG_IDE_PROC_FS |
1762 | static sector_t ide_cdrom_capacity(ide_drive_t *drive) | |
1763 | { | |
1764 | unsigned long capacity, sectors_per_frame; | |
1765 | ||
1766 | if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL)) | |
1767 | return 0; | |
1768 | ||
1769 | return capacity * sectors_per_frame; | |
1770 | } | |
1771 | ||
e5e076a3 BP |
1772 | static int proc_idecd_read_capacity(char *page, char **start, off_t off, |
1773 | int count, int *eof, void *data) | |
5e657a9e BP |
1774 | { |
1775 | ide_drive_t *drive = data; | |
1776 | int len; | |
1777 | ||
1778 | len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive)); | |
1779 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); | |
1780 | } | |
1781 | ||
1782 | static ide_proc_entry_t idecd_proc[] = { | |
1783 | { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL }, | |
1784 | { NULL, 0, NULL, NULL } | |
1785 | }; | |
1786 | ||
1787 | static void ide_cdrom_add_settings(ide_drive_t *drive) | |
1788 | { | |
1789 | ide_add_setting(drive, "dsc_overlap", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, | |
1790 | &drive->dsc_overlap, NULL); | |
1791 | } | |
1792 | #else | |
1793 | static inline void ide_cdrom_add_settings(ide_drive_t *drive) { ; } | |
1794 | #endif | |
1795 | ||
e59724c7 BZ |
1796 | static const struct cd_list_entry ide_cd_quirks_list[] = { |
1797 | /* Limit transfer size per interrupt. */ | |
570f89ea BP |
1798 | { "SAMSUNG CD-ROM SCR-2430", NULL, IDE_AFLAG_LIMIT_NFRAMES }, |
1799 | { "SAMSUNG CD-ROM SCR-2432", NULL, IDE_AFLAG_LIMIT_NFRAMES }, | |
e59724c7 | 1800 | /* SCR-3231 doesn't support the SET_CD_SPEED command. */ |
570f89ea | 1801 | { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT }, |
e59724c7 | 1802 | /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ |
570f89ea BP |
1803 | { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD | |
1804 | IDE_AFLAG_PRE_ATAPI12, }, | |
e59724c7 | 1805 | /* Vertos 300, some versions of this drive like to talk BCD. */ |
570f89ea | 1806 | { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, }, |
e59724c7 | 1807 | /* Vertos 600 ESD. */ |
570f89ea | 1808 | { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, }, |
e59724c7 BZ |
1809 | /* |
1810 | * Sanyo 3 CD changer uses a non-standard command for CD changing | |
1811 | * (by default standard ATAPI support for CD changers is used). | |
1812 | */ | |
570f89ea BP |
1813 | { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD }, |
1814 | { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD }, | |
1815 | { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD }, | |
e59724c7 | 1816 | /* Stingray 8X CD-ROM. */ |
570f89ea | 1817 | { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 }, |
e59724c7 BZ |
1818 | /* |
1819 | * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length | |
1820 | * mode sense page capabilities size, but older drives break. | |
1821 | */ | |
570f89ea BP |
1822 | { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, |
1823 | { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, | |
e59724c7 | 1824 | /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ |
570f89ea | 1825 | { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS }, |
e59724c7 BZ |
1826 | /* |
1827 | * Some drives used by Apple don't advertise audio play | |
1828 | * but they do support reading TOC & audio datas. | |
1829 | */ | |
570f89ea BP |
1830 | { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
1831 | { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1832 | { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1833 | { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1834 | { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
e59724c7 BZ |
1835 | { NULL, NULL, 0 } |
1836 | }; | |
1837 | ||
1838 | static unsigned int ide_cd_flags(struct hd_driveid *id) | |
1839 | { | |
1840 | const struct cd_list_entry *cle = ide_cd_quirks_list; | |
1841 | ||
1842 | while (cle->id_model) { | |
1843 | if (strcmp(cle->id_model, id->model) == 0 && | |
1844 | (cle->id_firmware == NULL || | |
1845 | strstr(id->fw_rev, cle->id_firmware))) | |
1846 | return cle->cd_flags; | |
1847 | cle++; | |
1848 | } | |
1849 | ||
1850 | return 0; | |
1851 | } | |
1852 | ||
e5e076a3 | 1853 | static int ide_cdrom_setup(ide_drive_t *drive) |
1da177e4 | 1854 | { |
4fe67178 BZ |
1855 | struct cdrom_info *cd = drive->driver_data; |
1856 | struct cdrom_device_info *cdi = &cd->devinfo; | |
e59724c7 | 1857 | struct hd_driveid *id = drive->id; |
1da177e4 LT |
1858 | int nslots; |
1859 | ||
1860 | blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn); | |
1861 | blk_queue_dma_alignment(drive->queue, 31); | |
e5318b53 | 1862 | blk_queue_update_dma_pad(drive->queue, 15); |
1da177e4 LT |
1863 | drive->queue->unplug_delay = (1 * HZ) / 1000; |
1864 | if (!drive->queue->unplug_delay) | |
1865 | drive->queue->unplug_delay = 1; | |
1866 | ||
1867 | drive->special.all = 0; | |
1868 | ||
570f89ea | 1869 | drive->atapi_flags = IDE_AFLAG_MEDIA_CHANGED | IDE_AFLAG_NO_EJECT | |
e59724c7 | 1870 | ide_cd_flags(id); |
1da177e4 | 1871 | |
e59724c7 | 1872 | if ((id->config & 0x0060) == 0x20) |
570f89ea | 1873 | drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT; |
e59724c7 | 1874 | |
570f89ea | 1875 | if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) && |
e59724c7 | 1876 | id->fw_rev[4] == '1' && id->fw_rev[6] <= '2') |
570f89ea BP |
1877 | drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD | |
1878 | IDE_AFLAG_TOCADDR_AS_BCD); | |
1879 | else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) && | |
e59724c7 | 1880 | id->fw_rev[4] == '1' && id->fw_rev[6] <= '2') |
570f89ea BP |
1881 | drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD; |
1882 | else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD) | |
5a3ea3b4 BP |
1883 | /* 3 => use CD in slot 0 */ |
1884 | cdi->sanyo_slot = 3; | |
1da177e4 | 1885 | |
9ce70fb2 | 1886 | nslots = ide_cdrom_probe_capabilities(drive); |
1da177e4 | 1887 | |
5a3ea3b4 | 1888 | /* set correct block size */ |
1da177e4 LT |
1889 | blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE); |
1890 | ||
cc12175f | 1891 | drive->dsc_overlap = (drive->next != drive); |
1da177e4 LT |
1892 | |
1893 | if (ide_cdrom_register(drive, nslots)) { | |
83c8565d BP |
1894 | printk(KERN_ERR "%s: %s failed to register device with the" |
1895 | " cdrom driver.\n", drive->name, __func__); | |
4fe67178 | 1896 | cd->devinfo.handle = NULL; |
1da177e4 LT |
1897 | return 1; |
1898 | } | |
1899 | ide_cdrom_add_settings(drive); | |
1900 | return 0; | |
1901 | } | |
1902 | ||
4031bbe4 | 1903 | static void ide_cd_remove(ide_drive_t *drive) |
1da177e4 LT |
1904 | { |
1905 | struct cdrom_info *info = drive->driver_data; | |
1906 | ||
7662d046 | 1907 | ide_proc_unregister_driver(drive, info->driver); |
1da177e4 LT |
1908 | |
1909 | del_gendisk(info->disk); | |
1910 | ||
1911 | ide_cd_put(info); | |
1da177e4 LT |
1912 | } |
1913 | ||
1914 | static void ide_cd_release(struct kref *kref) | |
1915 | { | |
1916 | struct cdrom_info *info = to_ide_cd(kref); | |
1917 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1918 | ide_drive_t *drive = info->drive; | |
1919 | struct gendisk *g = info->disk; | |
1920 | ||
6044ec88 | 1921 | kfree(info->toc); |
0a0c4114 AM |
1922 | if (devinfo->handle == drive) |
1923 | unregister_cdrom(devinfo); | |
1da177e4 LT |
1924 | drive->dsc_overlap = 0; |
1925 | drive->driver_data = NULL; | |
1926 | blk_queue_prep_rq(drive->queue, NULL); | |
1927 | g->private_data = NULL; | |
1928 | put_disk(g); | |
1929 | kfree(info); | |
1930 | } | |
1931 | ||
4031bbe4 | 1932 | static int ide_cd_probe(ide_drive_t *); |
1da177e4 | 1933 | |
1da177e4 | 1934 | static ide_driver_t ide_cdrom_driver = { |
8604affd | 1935 | .gen_driver = { |
4ef3b8f4 | 1936 | .owner = THIS_MODULE, |
8604affd BZ |
1937 | .name = "ide-cdrom", |
1938 | .bus = &ide_bus_type, | |
8604affd | 1939 | }, |
4031bbe4 RK |
1940 | .probe = ide_cd_probe, |
1941 | .remove = ide_cd_remove, | |
1da177e4 LT |
1942 | .version = IDECD_VERSION, |
1943 | .media = ide_cdrom, | |
1da177e4 | 1944 | .supports_dsc_overlap = 1, |
99384aea | 1945 | .do_request = ide_cd_do_request, |
1da177e4 LT |
1946 | .end_request = ide_end_request, |
1947 | .error = __ide_error, | |
7662d046 | 1948 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 | 1949 | .proc = idecd_proc, |
7662d046 | 1950 | #endif |
1da177e4 LT |
1951 | }; |
1952 | ||
9ce70fb2 | 1953 | static int idecd_open(struct inode *inode, struct file *file) |
1da177e4 LT |
1954 | { |
1955 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
1956 | struct cdrom_info *info; | |
1da177e4 LT |
1957 | int rc = -ENOMEM; |
1958 | ||
9ce70fb2 PC |
1959 | info = ide_cd_get(disk); |
1960 | if (!info) | |
1da177e4 LT |
1961 | return -ENXIO; |
1962 | ||
968c4964 | 1963 | rc = cdrom_open(&info->devinfo, inode, file); |
1da177e4 LT |
1964 | |
1965 | if (rc < 0) | |
1966 | ide_cd_put(info); | |
1967 | ||
1968 | return rc; | |
1969 | } | |
1970 | ||
9ce70fb2 | 1971 | static int idecd_release(struct inode *inode, struct file *file) |
1da177e4 LT |
1972 | { |
1973 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
1974 | struct cdrom_info *info = ide_cd_g(disk); | |
1da177e4 | 1975 | |
9ce70fb2 | 1976 | cdrom_release(&info->devinfo, file); |
1da177e4 LT |
1977 | |
1978 | ide_cd_put(info); | |
1979 | ||
1980 | return 0; | |
1981 | } | |
1982 | ||
6a2900b6 CH |
1983 | static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
1984 | { | |
1985 | struct packet_command cgc; | |
1986 | char buffer[16]; | |
1987 | int stat; | |
1988 | char spindown; | |
1989 | ||
1990 | if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) | |
1991 | return -EFAULT; | |
1992 | ||
1993 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1994 | ||
1995 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1996 | if (stat) | |
1997 | return stat; | |
1998 | ||
1999 | buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); | |
2000 | return cdrom_mode_select(cdi, &cgc); | |
2001 | } | |
2002 | ||
2003 | static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) | |
2004 | { | |
2005 | struct packet_command cgc; | |
2006 | char buffer[16]; | |
2007 | int stat; | |
9ce70fb2 | 2008 | char spindown; |
6a2900b6 CH |
2009 | |
2010 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
2011 | ||
2012 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
2013 | if (stat) | |
2014 | return stat; | |
2015 | ||
2016 | spindown = buffer[11] & 0x0f; | |
9ce70fb2 | 2017 | if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) |
6a2900b6 CH |
2018 | return -EFAULT; |
2019 | return 0; | |
2020 | } | |
2021 | ||
9ce70fb2 | 2022 | static int idecd_ioctl(struct inode *inode, struct file *file, |
1da177e4 LT |
2023 | unsigned int cmd, unsigned long arg) |
2024 | { | |
2025 | struct block_device *bdev = inode->i_bdev; | |
2026 | struct cdrom_info *info = ide_cd_g(bdev->bd_disk); | |
2027 | int err; | |
2028 | ||
6a2900b6 | 2029 | switch (cmd) { |
9ce70fb2 | 2030 | case CDROMSETSPINDOWN: |
6a2900b6 | 2031 | return idecd_set_spindown(&info->devinfo, arg); |
9ce70fb2 | 2032 | case CDROMGETSPINDOWN: |
6a2900b6 CH |
2033 | return idecd_get_spindown(&info->devinfo, arg); |
2034 | default: | |
2035 | break; | |
9ce70fb2 | 2036 | } |
6a2900b6 CH |
2037 | |
2038 | err = generic_ide_ioctl(info->drive, file, bdev, cmd, arg); | |
1da177e4 LT |
2039 | if (err == -EINVAL) |
2040 | err = cdrom_ioctl(file, &info->devinfo, inode, cmd, arg); | |
2041 | ||
2042 | return err; | |
2043 | } | |
2044 | ||
2045 | static int idecd_media_changed(struct gendisk *disk) | |
2046 | { | |
2047 | struct cdrom_info *info = ide_cd_g(disk); | |
2048 | return cdrom_media_changed(&info->devinfo); | |
2049 | } | |
2050 | ||
2051 | static int idecd_revalidate_disk(struct gendisk *disk) | |
2052 | { | |
2053 | struct cdrom_info *info = ide_cd_g(disk); | |
2054 | struct request_sense sense; | |
139c829d BZ |
2055 | |
2056 | ide_cd_read_toc(info->drive, &sense); | |
2057 | ||
1da177e4 LT |
2058 | return 0; |
2059 | } | |
2060 | ||
2061 | static struct block_device_operations idecd_ops = { | |
9ce70fb2 PC |
2062 | .owner = THIS_MODULE, |
2063 | .open = idecd_open, | |
2064 | .release = idecd_release, | |
2065 | .ioctl = idecd_ioctl, | |
2066 | .media_changed = idecd_media_changed, | |
2067 | .revalidate_disk = idecd_revalidate_disk | |
1da177e4 LT |
2068 | }; |
2069 | ||
5a3ea3b4 | 2070 | /* module options */ |
9ce70fb2 | 2071 | static char *ignore; |
1da177e4 LT |
2072 | |
2073 | module_param(ignore, charp, 0400); | |
2074 | MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); | |
2075 | ||
4031bbe4 | 2076 | static int ide_cd_probe(ide_drive_t *drive) |
1da177e4 LT |
2077 | { |
2078 | struct cdrom_info *info; | |
2079 | struct gendisk *g; | |
2080 | struct request_sense sense; | |
2081 | ||
2082 | if (!strstr("ide-cdrom", drive->driver_req)) | |
2083 | goto failed; | |
2084 | if (!drive->present) | |
2085 | goto failed; | |
2086 | if (drive->media != ide_cdrom && drive->media != ide_optical) | |
2087 | goto failed; | |
2088 | /* skip drives that we were told to ignore */ | |
2089 | if (ignore != NULL) { | |
2090 | if (strstr(ignore, drive->name)) { | |
83c8565d BP |
2091 | printk(KERN_INFO "ide-cd: ignoring drive %s\n", |
2092 | drive->name); | |
1da177e4 LT |
2093 | goto failed; |
2094 | } | |
2095 | } | |
f5e3c2fa | 2096 | info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); |
1da177e4 | 2097 | if (info == NULL) { |
83c8565d BP |
2098 | printk(KERN_ERR "%s: Can't allocate a cdrom structure\n", |
2099 | drive->name); | |
1da177e4 LT |
2100 | goto failed; |
2101 | } | |
2102 | ||
2103 | g = alloc_disk(1 << PARTN_BITS); | |
2104 | if (!g) | |
2105 | goto out_free_cd; | |
2106 | ||
2107 | ide_init_disk(g, drive); | |
2108 | ||
7662d046 | 2109 | ide_proc_register_driver(drive, &ide_cdrom_driver); |
8604affd | 2110 | |
1da177e4 LT |
2111 | kref_init(&info->kref); |
2112 | ||
2113 | info->drive = drive; | |
2114 | info->driver = &ide_cdrom_driver; | |
2115 | info->disk = g; | |
2116 | ||
2117 | g->private_data = &info->driver; | |
2118 | ||
2119 | drive->driver_data = info; | |
2120 | ||
1da177e4 | 2121 | g->minors = 1; |
1da177e4 LT |
2122 | g->driverfs_dev = &drive->gendev; |
2123 | g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; | |
2124 | if (ide_cdrom_setup(drive)) { | |
7662d046 | 2125 | ide_proc_unregister_driver(drive, &ide_cdrom_driver); |
05017db3 | 2126 | ide_cd_release(&info->kref); |
1da177e4 LT |
2127 | goto failed; |
2128 | } | |
1da177e4 | 2129 | |
139c829d | 2130 | ide_cd_read_toc(drive, &sense); |
1da177e4 LT |
2131 | g->fops = &idecd_ops; |
2132 | g->flags |= GENHD_FL_REMOVABLE; | |
2133 | add_disk(g); | |
2134 | return 0; | |
2135 | ||
1da177e4 LT |
2136 | out_free_cd: |
2137 | kfree(info); | |
2138 | failed: | |
8604affd | 2139 | return -ENODEV; |
1da177e4 LT |
2140 | } |
2141 | ||
2142 | static void __exit ide_cdrom_exit(void) | |
2143 | { | |
8604affd | 2144 | driver_unregister(&ide_cdrom_driver.gen_driver); |
1da177e4 | 2145 | } |
17514e8a BZ |
2146 | |
2147 | static int __init ide_cdrom_init(void) | |
1da177e4 | 2148 | { |
8604affd | 2149 | return driver_register(&ide_cdrom_driver.gen_driver); |
1da177e4 LT |
2150 | } |
2151 | ||
263756ec | 2152 | MODULE_ALIAS("ide:*m-cdrom*"); |
972560fb | 2153 | MODULE_ALIAS("ide-cd"); |
1da177e4 LT |
2154 | module_init(ide_cdrom_init); |
2155 | module_exit(ide_cdrom_exit); | |
2156 | MODULE_LICENSE("GPL"); |