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 | ||
08da591e BZ |
60 | static void ide_cd_release(struct kref *); |
61 | ||
1da177e4 LT |
62 | static struct cdrom_info *ide_cd_get(struct gendisk *disk) |
63 | { | |
64 | struct cdrom_info *cd = NULL; | |
65 | ||
cf8b8975 | 66 | mutex_lock(&idecd_ref_mutex); |
1da177e4 | 67 | cd = ide_cd_g(disk); |
08da591e | 68 | if (cd) { |
d3e33ff5 | 69 | if (ide_device_get(cd->drive)) |
08da591e | 70 | cd = NULL; |
d3e33ff5 BZ |
71 | else |
72 | kref_get(&cd->kref); | |
73 | ||
08da591e | 74 | } |
cf8b8975 | 75 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
76 | return cd; |
77 | } | |
78 | ||
1da177e4 LT |
79 | static void ide_cd_put(struct cdrom_info *cd) |
80 | { | |
d3e33ff5 BZ |
81 | ide_drive_t *drive = cd->drive; |
82 | ||
cf8b8975 | 83 | mutex_lock(&idecd_ref_mutex); |
1da177e4 | 84 | kref_put(&cd->kref, ide_cd_release); |
d3e33ff5 | 85 | ide_device_put(drive); |
cf8b8975 | 86 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
87 | } |
88 | ||
5a3ea3b4 | 89 | /* |
1da177e4 LT |
90 | * Generic packet command support and error handling routines. |
91 | */ | |
92 | ||
5a3ea3b4 | 93 | /* Mark that we've seen a media change and invalidate our internal buffers. */ |
9ce70fb2 | 94 | static void cdrom_saw_media_change(ide_drive_t *drive) |
1da177e4 | 95 | { |
570f89ea BP |
96 | drive->atapi_flags |= IDE_AFLAG_MEDIA_CHANGED; |
97 | drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID; | |
1da177e4 LT |
98 | } |
99 | ||
100 | static int cdrom_log_sense(ide_drive_t *drive, struct request *rq, | |
101 | struct request_sense *sense) | |
102 | { | |
103 | int log = 0; | |
104 | ||
4aff5e23 | 105 | if (!sense || !rq || (rq->cmd_flags & REQ_QUIET)) |
1da177e4 LT |
106 | return 0; |
107 | ||
108 | switch (sense->sense_key) { | |
9ce70fb2 PC |
109 | case NO_SENSE: |
110 | case RECOVERED_ERROR: | |
111 | break; | |
112 | case NOT_READY: | |
113 | /* | |
5a3ea3b4 BP |
114 | * don't care about tray state messages for e.g. capacity |
115 | * commands or in-progress or becoming ready | |
9ce70fb2 PC |
116 | */ |
117 | if (sense->asc == 0x3a || sense->asc == 0x04) | |
1da177e4 | 118 | break; |
9ce70fb2 PC |
119 | log = 1; |
120 | break; | |
121 | case ILLEGAL_REQUEST: | |
122 | /* | |
5a3ea3b4 BP |
123 | * don't log START_STOP unit with LoEj set, since we cannot |
124 | * reliably check if drive can auto-close | |
9ce70fb2 PC |
125 | */ |
126 | if (rq->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24) | |
1da177e4 | 127 | break; |
9ce70fb2 PC |
128 | log = 1; |
129 | break; | |
130 | case UNIT_ATTENTION: | |
131 | /* | |
5a3ea3b4 BP |
132 | * Make good and sure we've seen this potential media change. |
133 | * Some drives (i.e. Creative) fail to present the correct sense | |
134 | * key in the error register. | |
9ce70fb2 PC |
135 | */ |
136 | cdrom_saw_media_change(drive); | |
137 | break; | |
138 | default: | |
139 | log = 1; | |
140 | break; | |
1da177e4 LT |
141 | } |
142 | return log; | |
143 | } | |
144 | ||
e5e076a3 | 145 | static void cdrom_analyze_sense_data(ide_drive_t *drive, |
1da177e4 LT |
146 | struct request *failed_command, |
147 | struct request_sense *sense) | |
148 | { | |
dbe217af AC |
149 | unsigned long sector; |
150 | unsigned long bio_sectors; | |
dbe217af AC |
151 | struct cdrom_info *info = drive->driver_data; |
152 | ||
1da177e4 LT |
153 | if (!cdrom_log_sense(drive, failed_command, sense)) |
154 | return; | |
155 | ||
156 | /* | |
5a3ea3b4 BP |
157 | * If a read toc is executed for a CD-R or CD-RW medium where the first |
158 | * toc has not been recorded yet, it will fail with 05/24/00 (which is a | |
159 | * confusing error) | |
1da177e4 LT |
160 | */ |
161 | if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP) | |
162 | if (sense->sense_key == 0x05 && sense->asc == 0x24) | |
163 | return; | |
164 | ||
5a3ea3b4 BP |
165 | /* current error */ |
166 | if (sense->error_code == 0x70) { | |
9ce70fb2 | 167 | switch (sense->sense_key) { |
dbe217af AC |
168 | case MEDIUM_ERROR: |
169 | case VOLUME_OVERFLOW: | |
170 | case ILLEGAL_REQUEST: | |
171 | if (!sense->valid) | |
172 | break; | |
173 | if (failed_command == NULL || | |
174 | !blk_fs_request(failed_command)) | |
175 | break; | |
176 | sector = (sense->information[0] << 24) | | |
177 | (sense->information[1] << 16) | | |
178 | (sense->information[2] << 8) | | |
179 | (sense->information[3]); | |
180 | ||
dbe217af | 181 | if (drive->queue->hardsect_size == 2048) |
5a3ea3b4 BP |
182 | /* device sector size is 2K */ |
183 | sector <<= 2; | |
eee49298 RK |
184 | |
185 | bio_sectors = max(bio_sectors(failed_command->bio), 4U); | |
9ce70fb2 | 186 | sector &= ~(bio_sectors - 1); |
dbe217af | 187 | |
dbe217af | 188 | if (sector < get_capacity(info->disk) && |
e5e076a3 | 189 | drive->probed_capacity - sector < 4 * 75) |
dbe217af | 190 | set_capacity(info->disk, sector); |
9ce70fb2 PC |
191 | } |
192 | } | |
1da177e4 | 193 | |
972560fb | 194 | ide_cd_log_error(drive->name, failed_command, sense); |
1da177e4 LT |
195 | } |
196 | ||
1da177e4 LT |
197 | static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, |
198 | struct request *failed_command) | |
199 | { | |
200 | struct cdrom_info *info = drive->driver_data; | |
201 | struct request *rq = &info->request_sense_request; | |
202 | ||
203 | if (sense == NULL) | |
204 | sense = &info->sense_data; | |
205 | ||
206 | /* stuff the sense request in front of our current request */ | |
ed820f19 FT |
207 | blk_rq_init(NULL, rq); |
208 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
209 | rq->rq_disk = info->disk; | |
1da177e4 LT |
210 | |
211 | rq->data = sense; | |
212 | rq->cmd[0] = GPCMD_REQUEST_SENSE; | |
e5e076a3 BP |
213 | rq->cmd[4] = 18; |
214 | rq->data_len = 18; | |
1da177e4 | 215 | |
4aff5e23 | 216 | rq->cmd_type = REQ_TYPE_SENSE; |
e8a96aa7 | 217 | rq->cmd_flags |= REQ_PREEMPT; |
1da177e4 LT |
218 | |
219 | /* NOTE! Save the failed command in "rq->buffer" */ | |
220 | rq->buffer = (void *) failed_command; | |
221 | ||
63f5abb0 | 222 | ide_do_drive_cmd(drive, rq); |
1da177e4 LT |
223 | } |
224 | ||
9ce70fb2 | 225 | static void cdrom_end_request(ide_drive_t *drive, int uptodate) |
1da177e4 LT |
226 | { |
227 | struct request *rq = HWGROUP(drive)->rq; | |
228 | int nsectors = rq->hard_cur_sectors; | |
229 | ||
4aff5e23 | 230 | if (blk_sense_request(rq) && uptodate) { |
1da177e4 | 231 | /* |
4aff5e23 JA |
232 | * For REQ_TYPE_SENSE, "rq->buffer" points to the original |
233 | * failed request | |
1da177e4 LT |
234 | */ |
235 | struct request *failed = (struct request *) rq->buffer; | |
236 | struct cdrom_info *info = drive->driver_data; | |
237 | void *sense = &info->sense_data; | |
238 | unsigned long flags; | |
239 | ||
240 | if (failed) { | |
241 | if (failed->sense) { | |
242 | sense = failed->sense; | |
243 | failed->sense_len = rq->sense_len; | |
244 | } | |
dbe217af | 245 | cdrom_analyze_sense_data(drive, failed, sense); |
1da177e4 | 246 | /* |
5a3ea3b4 | 247 | * now end the failed request |
1da177e4 | 248 | */ |
dbe217af AC |
249 | if (blk_fs_request(failed)) { |
250 | if (ide_end_dequeued_request(drive, failed, 0, | |
251 | failed->hard_nr_sectors)) | |
252 | BUG(); | |
253 | } else { | |
254 | spin_lock_irqsave(&ide_lock, flags); | |
5e36bb6e KU |
255 | if (__blk_end_request(failed, -EIO, |
256 | failed->data_len)) | |
257 | BUG(); | |
dbe217af AC |
258 | spin_unlock_irqrestore(&ide_lock, flags); |
259 | } | |
260 | } else | |
261 | cdrom_analyze_sense_data(drive, NULL, sense); | |
1da177e4 LT |
262 | } |
263 | ||
264 | if (!rq->current_nr_sectors && blk_fs_request(rq)) | |
265 | uptodate = 1; | |
266 | /* make sure it's fully ended */ | |
267 | if (blk_pc_request(rq)) | |
268 | nsectors = (rq->data_len + 511) >> 9; | |
269 | if (!nsectors) | |
270 | nsectors = 1; | |
271 | ||
272 | ide_end_request(drive, uptodate, nsectors); | |
273 | } | |
274 | ||
83c8565d | 275 | static void ide_dump_status_no_sense(ide_drive_t *drive, const char *msg, u8 st) |
dbe217af | 276 | { |
83c8565d | 277 | if (st & 0x80) |
dbe217af | 278 | return; |
83c8565d | 279 | ide_dump_status(drive, msg, st); |
dbe217af AC |
280 | } |
281 | ||
5a3ea3b4 BP |
282 | /* |
283 | * Returns: | |
284 | * 0: if the request should be continued. | |
285 | * 1: if the request was ended. | |
286 | */ | |
1da177e4 LT |
287 | static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) |
288 | { | |
b73c7ee2 BZ |
289 | ide_hwif_t *hwif = drive->hwif; |
290 | struct request *rq = hwif->hwgroup->rq; | |
1da177e4 | 291 | int stat, err, sense_key; |
9ce70fb2 | 292 | |
5a3ea3b4 | 293 | /* check for errors */ |
374e042c | 294 | stat = hwif->tp_ops->read_status(hwif); |
c47137a9 | 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 | { | |
1da177e4 LT |
527 | struct cdrom_info *info = drive->driver_data; |
528 | ide_hwif_t *hwif = drive->hwif; | |
529 | ||
3a6a3549 | 530 | /* FIXME: for Virtual DMA we must check harder */ |
1da177e4 | 531 | if (info->dma) |
5e37bdc0 | 532 | info->dma = !hwif->dma_ops->dma_setup(drive); |
1da177e4 | 533 | |
5a3ea3b4 | 534 | /* set up the controller registers */ |
9a410e79 BZ |
535 | ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL, |
536 | xferlen, info->dma); | |
4fe67178 | 537 | |
570f89ea | 538 | if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { |
f0dd8712 AL |
539 | /* waiting for CDB interrupt, not DMA yet. */ |
540 | if (info->dma) | |
541 | drive->waiting_for_dma = 0; | |
542 | ||
1da177e4 | 543 | /* packet command */ |
83c8565d BP |
544 | ide_execute_command(drive, WIN_PACKETCMD, handler, |
545 | ATAPI_WAIT_PC, cdrom_timer_expiry); | |
1da177e4 LT |
546 | return ide_started; |
547 | } else { | |
1fc14258 | 548 | ide_execute_pkt_cmd(drive); |
1da177e4 LT |
549 | |
550 | return (*handler) (drive); | |
551 | } | |
552 | } | |
553 | ||
5a3ea3b4 BP |
554 | /* |
555 | * Send a packet command to DRIVE described by CMD_BUF and CMD_LEN. The device | |
556 | * registers must have already been prepared by cdrom_start_packet_command. | |
557 | * HANDLER is the interrupt handler to call when the command completes or | |
558 | * there's data ready. | |
559 | */ | |
1da177e4 | 560 | #define ATAPI_MIN_CDB_BYTES 12 |
9ce70fb2 | 561 | static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive, |
1da177e4 LT |
562 | struct request *rq, |
563 | ide_handler_t *handler) | |
564 | { | |
565 | ide_hwif_t *hwif = drive->hwif; | |
566 | int cmd_len; | |
567 | struct cdrom_info *info = drive->driver_data; | |
568 | ide_startstop_t startstop; | |
569 | ||
570f89ea | 570 | if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { |
5a3ea3b4 BP |
571 | /* |
572 | * Here we should have been called after receiving an interrupt | |
573 | * from the device. DRQ should how be set. | |
574 | */ | |
1da177e4 | 575 | |
5a3ea3b4 | 576 | /* check for errors */ |
1da177e4 LT |
577 | if (cdrom_decode_status(drive, DRQ_STAT, NULL)) |
578 | return ide_stopped; | |
f0dd8712 | 579 | |
5a3ea3b4 | 580 | /* ok, next interrupt will be DMA interrupt */ |
f0dd8712 AL |
581 | if (info->dma) |
582 | drive->waiting_for_dma = 1; | |
1da177e4 | 583 | } else { |
5a3ea3b4 | 584 | /* otherwise, we must wait for DRQ to get set */ |
1da177e4 LT |
585 | if (ide_wait_stat(&startstop, drive, DRQ_STAT, |
586 | BUSY_STAT, WAIT_READY)) | |
587 | return startstop; | |
588 | } | |
589 | ||
5a3ea3b4 | 590 | /* arm the interrupt handler */ |
1da177e4 LT |
591 | ide_set_handler(drive, handler, rq->timeout, cdrom_timer_expiry); |
592 | ||
593 | /* ATAPI commands get padded out to 12 bytes minimum */ | |
594 | cmd_len = COMMAND_SIZE(rq->cmd[0]); | |
595 | if (cmd_len < ATAPI_MIN_CDB_BYTES) | |
596 | cmd_len = ATAPI_MIN_CDB_BYTES; | |
597 | ||
5a3ea3b4 | 598 | /* send the command to the device */ |
374e042c | 599 | hwif->tp_ops->output_data(drive, NULL, rq->cmd, cmd_len); |
1da177e4 | 600 | |
5a3ea3b4 | 601 | /* start the DMA if need be */ |
1da177e4 | 602 | if (info->dma) |
5e37bdc0 | 603 | hwif->dma_ops->dma_start(drive); |
1da177e4 LT |
604 | |
605 | return ide_started; | |
606 | } | |
607 | ||
1da177e4 LT |
608 | /* |
609 | * Check the contents of the interrupt reason register from the cdrom | |
610 | * and attempt to recover if there are problems. Returns 0 if everything's | |
611 | * ok; nonzero if the request has been terminated. | |
612 | */ | |
9f10d9ee BZ |
613 | static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, |
614 | int len, int ireason, int rw) | |
1da177e4 | 615 | { |
b73c7ee2 BZ |
616 | ide_hwif_t *hwif = drive->hwif; |
617 | ||
0d6f7e3a BZ |
618 | /* |
619 | * ireason == 0: the drive wants to receive data from us | |
620 | * ireason == 2: the drive is expecting to transfer data to us | |
621 | */ | |
622 | if (ireason == (!rw << 1)) | |
1da177e4 | 623 | return 0; |
0d6f7e3a | 624 | else if (ireason == (rw << 1)) { |
5a5222d9 | 625 | |
5a3ea3b4 | 626 | /* whoops... */ |
35379c07 | 627 | printk(KERN_ERR "%s: %s: wrong transfer direction!\n", |
177773ed | 628 | drive->name, __func__); |
1da177e4 | 629 | |
ae8789f0 | 630 | ide_pad_transfer(drive, rw, len); |
0d6f7e3a | 631 | } else if (rw == 0 && ireason == 1) { |
5a3ea3b4 BP |
632 | /* |
633 | * Some drives (ASUS) seem to tell us that status info is | |
634 | * available. Just get it and ignore. | |
1da177e4 | 635 | */ |
374e042c | 636 | (void)hwif->tp_ops->read_status(hwif); |
1da177e4 LT |
637 | return 0; |
638 | } else { | |
5a3ea3b4 | 639 | /* drive wants a command packet, or invalid ireason... */ |
35379c07 | 640 | printk(KERN_ERR "%s: %s: bad interrupt reason 0x%02x\n", |
177773ed | 641 | drive->name, __func__, ireason); |
1da177e4 LT |
642 | } |
643 | ||
9f10d9ee BZ |
644 | if (rq->cmd_type == REQ_TYPE_ATA_PC) |
645 | rq->cmd_flags |= REQ_FAILED; | |
646 | ||
1da177e4 LT |
647 | cdrom_end_request(drive, 0); |
648 | return -1; | |
649 | } | |
650 | ||
64814f23 BZ |
651 | /* |
652 | * Assume that the drive will always provide data in multiples of at least | |
653 | * SECTOR_SIZE, as it gets hairy to keep track of the transfers otherwise. | |
654 | */ | |
655 | static int ide_cd_check_transfer_size(ide_drive_t *drive, int len) | |
656 | { | |
64814f23 BZ |
657 | if ((len % SECTOR_SIZE) == 0) |
658 | return 0; | |
659 | ||
660 | printk(KERN_ERR "%s: %s: Bad transfer size %d\n", | |
177773ed | 661 | drive->name, __func__, len); |
64814f23 | 662 | |
570f89ea | 663 | if (drive->atapi_flags & IDE_AFLAG_LIMIT_NFRAMES) |
64814f23 BZ |
664 | printk(KERN_ERR " This drive is not supported by " |
665 | "this version of the driver\n"); | |
666 | else { | |
667 | printk(KERN_ERR " Trying to limit transfer sizes\n"); | |
570f89ea | 668 | drive->atapi_flags |= IDE_AFLAG_LIMIT_NFRAMES; |
64814f23 BZ |
669 | } |
670 | ||
671 | return 1; | |
672 | } | |
673 | ||
0041e7c6 | 674 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *); |
94f5a86d | 675 | |
90eb808e BP |
676 | static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive, |
677 | struct request *rq) | |
1da177e4 | 678 | { |
29f3aaca BZ |
679 | if (rq_data_dir(rq) == READ) { |
680 | unsigned short sectors_per_frame = | |
681 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
682 | int nskip = rq->sector & (sectors_per_frame - 1); | |
1da177e4 | 683 | |
29f3aaca BZ |
684 | /* |
685 | * If the requested sector doesn't start on a frame boundary, | |
686 | * we must adjust the start of the transfer so that it does, | |
687 | * and remember to skip the first few sectors. | |
688 | * | |
689 | * If the rq->current_nr_sectors field is larger than the size | |
690 | * of the buffer, it will mean that we're to skip a number of | |
691 | * sectors equal to the amount by which rq->current_nr_sectors | |
692 | * is larger than the buffer size. | |
693 | */ | |
694 | if (nskip > 0) { | |
5a3ea3b4 | 695 | /* sanity check... */ |
29f3aaca BZ |
696 | if (rq->current_nr_sectors != |
697 | bio_cur_sectors(rq->bio)) { | |
698 | printk(KERN_ERR "%s: %s: buffer botch (%u)\n", | |
177773ed | 699 | drive->name, __func__, |
29f3aaca BZ |
700 | rq->current_nr_sectors); |
701 | cdrom_end_request(drive, 0); | |
702 | return ide_stopped; | |
703 | } | |
704 | rq->current_nr_sectors += nskip; | |
1da177e4 | 705 | } |
1da177e4 | 706 | } |
29f3aaca BZ |
707 | #if 0 |
708 | else | |
709 | /* the immediate bit */ | |
710 | rq->cmd[1] = 1 << 3; | |
711 | #endif | |
5a3ea3b4 | 712 | /* set up the command */ |
1da177e4 LT |
713 | rq->timeout = ATAPI_WAIT_PC; |
714 | ||
90eb808e BP |
715 | return ide_started; |
716 | } | |
717 | ||
718 | /* | |
719 | * Routine to send a read/write packet command to the drive. This is usually | |
720 | * called directly from cdrom_start_{read,write}(). However, for drq_interrupt | |
721 | * devices, it is called from an interrupt when the drive is ready to accept | |
722 | * the command. | |
723 | */ | |
724 | static ide_startstop_t cdrom_start_rw_cont(ide_drive_t *drive) | |
725 | { | |
726 | struct request *rq = drive->hwif->hwgroup->rq; | |
727 | ||
5a3ea3b4 | 728 | /* send the command to the drive and return */ |
0041e7c6 | 729 | return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr); |
1da177e4 LT |
730 | } |
731 | ||
1da177e4 LT |
732 | #define IDECD_SEEK_THRESHOLD (1000) /* 1000 blocks */ |
733 | #define IDECD_SEEK_TIMER (5 * WAIT_MIN_SLEEP) /* 100 ms */ | |
734 | #define IDECD_SEEK_TIMEOUT (2 * WAIT_CMD) /* 20 sec */ | |
735 | ||
9ce70fb2 | 736 | static ide_startstop_t cdrom_seek_intr(ide_drive_t *drive) |
1da177e4 LT |
737 | { |
738 | struct cdrom_info *info = drive->driver_data; | |
739 | int stat; | |
740 | static int retry = 10; | |
741 | ||
742 | if (cdrom_decode_status(drive, 0, &stat)) | |
743 | return ide_stopped; | |
4fe67178 | 744 | |
570f89ea | 745 | drive->atapi_flags |= IDE_AFLAG_SEEKING; |
1da177e4 LT |
746 | |
747 | if (retry && time_after(jiffies, info->start_seek + IDECD_SEEK_TIMER)) { | |
5a3ea3b4 | 748 | if (--retry == 0) |
1da177e4 | 749 | drive->dsc_overlap = 0; |
1da177e4 LT |
750 | } |
751 | return ide_stopped; | |
752 | } | |
753 | ||
e529c608 | 754 | static void ide_cd_prepare_seek_request(ide_drive_t *drive, struct request *rq) |
1da177e4 | 755 | { |
1da177e4 LT |
756 | sector_t frame = rq->sector; |
757 | ||
758 | sector_div(frame, queue_hardsect_size(drive->queue) >> SECTOR_BITS); | |
759 | ||
d34c87e4 | 760 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
761 | rq->cmd[0] = GPCMD_SEEK; |
762 | put_unaligned(cpu_to_be32(frame), (unsigned int *) &rq->cmd[2]); | |
763 | ||
764 | rq->timeout = ATAPI_WAIT_PC; | |
e529c608 BP |
765 | } |
766 | ||
767 | static ide_startstop_t cdrom_start_seek_continuation(ide_drive_t *drive) | |
768 | { | |
769 | struct request *rq = drive->hwif->hwgroup->rq; | |
770 | ||
1da177e4 LT |
771 | return cdrom_transfer_packet_command(drive, rq, &cdrom_seek_intr); |
772 | } | |
773 | ||
9ce70fb2 | 774 | /* |
5a3ea3b4 BP |
775 | * Fix up a possibly partially-processed request so that we can start it over |
776 | * entirely, or even put it back on the request queue. | |
9ce70fb2 PC |
777 | */ |
778 | static void restore_request(struct request *rq) | |
1da177e4 LT |
779 | { |
780 | if (rq->buffer != bio_data(rq->bio)) { | |
83c8565d BP |
781 | sector_t n = |
782 | (rq->buffer - (char *)bio_data(rq->bio)) / SECTOR_SIZE; | |
1da177e4 LT |
783 | |
784 | rq->buffer = bio_data(rq->bio); | |
785 | rq->nr_sectors += n; | |
786 | rq->sector -= n; | |
787 | } | |
83c8565d BP |
788 | rq->current_nr_sectors = bio_cur_sectors(rq->bio); |
789 | rq->hard_cur_sectors = rq->current_nr_sectors; | |
1da177e4 LT |
790 | rq->hard_nr_sectors = rq->nr_sectors; |
791 | rq->hard_sector = rq->sector; | |
792 | rq->q->prep_rq_fn(rq->q, rq); | |
793 | } | |
794 | ||
5a3ea3b4 BP |
795 | /* |
796 | * All other packet commands. | |
1da177e4 | 797 | */ |
8ee69f5a BZ |
798 | static void ide_cd_request_sense_fixup(struct request *rq) |
799 | { | |
800 | /* | |
801 | * Some of the trailing request sense fields are optional, | |
802 | * and some drives don't send them. Sigh. | |
803 | */ | |
804 | if (rq->cmd[0] == GPCMD_REQUEST_SENSE && | |
805 | rq->data_len > 0 && rq->data_len <= 5) | |
806 | while (rq->data_len > 0) { | |
807 | *(u8 *)rq->data++ = 0; | |
808 | --rq->data_len; | |
809 | } | |
810 | } | |
811 | ||
5f828546 FT |
812 | int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, |
813 | int write, void *buffer, unsigned *bufflen, | |
814 | struct request_sense *sense, int timeout, | |
815 | unsigned int cmd_flags) | |
1da177e4 | 816 | { |
5f828546 FT |
817 | struct cdrom_info *info = drive->driver_data; |
818 | struct request_sense local_sense; | |
1da177e4 | 819 | int retries = 10; |
5f828546 | 820 | unsigned int flags = 0; |
1da177e4 | 821 | |
5f828546 FT |
822 | if (!sense) |
823 | sense = &local_sense; | |
1da177e4 | 824 | |
5a3ea3b4 | 825 | /* start of retry loop */ |
1da177e4 | 826 | do { |
5f828546 | 827 | struct request *rq; |
1da177e4 | 828 | int error; |
1da177e4 | 829 | |
5f828546 FT |
830 | rq = blk_get_request(drive->queue, write, __GFP_WAIT); |
831 | ||
832 | memcpy(rq->cmd, cmd, BLK_MAX_CDB); | |
833 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
834 | rq->sense = sense; | |
835 | rq->cmd_flags |= cmd_flags; | |
836 | rq->timeout = timeout; | |
837 | if (buffer) { | |
838 | rq->data = buffer; | |
839 | rq->data_len = *bufflen; | |
840 | } | |
841 | ||
842 | error = blk_execute_rq(drive->queue, info->disk, rq, 0); | |
843 | ||
844 | if (buffer) | |
845 | *bufflen = rq->data_len; | |
846 | ||
847 | flags = rq->cmd_flags; | |
848 | blk_put_request(rq); | |
1da177e4 | 849 | |
5a3ea3b4 BP |
850 | /* |
851 | * FIXME: we should probably abort/retry or something in case of | |
852 | * failure. | |
853 | */ | |
5f828546 | 854 | if (flags & REQ_FAILED) { |
5a3ea3b4 BP |
855 | /* |
856 | * The request failed. Retry if it was due to a unit | |
857 | * attention status (usually means media was changed). | |
858 | */ | |
5f828546 | 859 | struct request_sense *reqbuf = sense; |
1da177e4 LT |
860 | |
861 | if (reqbuf->sense_key == UNIT_ATTENTION) | |
862 | cdrom_saw_media_change(drive); | |
863 | else if (reqbuf->sense_key == NOT_READY && | |
864 | reqbuf->asc == 4 && reqbuf->ascq != 4) { | |
5a3ea3b4 BP |
865 | /* |
866 | * The drive is in the process of loading | |
867 | * a disk. Retry, but wait a little to give | |
868 | * the drive time to complete the load. | |
869 | */ | |
1da177e4 LT |
870 | ssleep(2); |
871 | } else { | |
5a3ea3b4 | 872 | /* otherwise, don't retry */ |
1da177e4 LT |
873 | retries = 0; |
874 | } | |
875 | --retries; | |
876 | } | |
877 | ||
5a3ea3b4 | 878 | /* end of retry loop */ |
5f828546 | 879 | } while ((flags & REQ_FAILED) && retries >= 0); |
1da177e4 | 880 | |
5a3ea3b4 | 881 | /* return an error if the command failed */ |
5f828546 | 882 | return (flags & REQ_FAILED) ? -EIO : 0; |
1da177e4 LT |
883 | } |
884 | ||
aaa04c28 | 885 | /* |
5a3ea3b4 BP |
886 | * Called from blk_end_request_callback() after the data of the request is |
887 | * completed and before the request itself is completed. By returning value '1', | |
888 | * blk_end_request_callback() returns immediately without completing it. | |
aaa04c28 KU |
889 | */ |
890 | static int cdrom_newpc_intr_dummy_cb(struct request *rq) | |
891 | { | |
892 | return 1; | |
893 | } | |
894 | ||
1da177e4 LT |
895 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) |
896 | { | |
23579a2a | 897 | ide_hwif_t *hwif = drive->hwif; |
1da177e4 LT |
898 | struct cdrom_info *info = drive->driver_data; |
899 | struct request *rq = HWGROUP(drive)->rq; | |
1da177e4 | 900 | xfer_func_t *xferfunc; |
0041e7c6 | 901 | ide_expiry_t *expiry = NULL; |
1823649b | 902 | int dma_error = 0, dma, stat, thislen, uptodate = 0; |
ff1bfbc1 BZ |
903 | int write = (rq_data_dir(rq) == WRITE) ? 1 : 0; |
904 | unsigned int timeout; | |
1823649b BZ |
905 | u16 len; |
906 | u8 ireason; | |
1da177e4 | 907 | |
5a3ea3b4 | 908 | /* check for errors */ |
1da177e4 LT |
909 | dma = info->dma; |
910 | if (dma) { | |
911 | info->dma = 0; | |
5e37bdc0 | 912 | dma_error = hwif->dma_ops->dma_end(drive); |
eba15fba BZ |
913 | if (dma_error) { |
914 | printk(KERN_ERR "%s: DMA %s error\n", drive->name, | |
ff1bfbc1 | 915 | write ? "write" : "read"); |
eba15fba BZ |
916 | ide_dma_off(drive); |
917 | } | |
1da177e4 LT |
918 | } |
919 | ||
920 | if (cdrom_decode_status(drive, 0, &stat)) | |
921 | return ide_stopped; | |
922 | ||
5a3ea3b4 | 923 | /* using dma, transfer is complete now */ |
1da177e4 | 924 | if (dma) { |
eba15fba | 925 | if (dma_error) |
1da177e4 | 926 | return ide_error(drive, "dma error", stat); |
0041e7c6 BZ |
927 | if (blk_fs_request(rq)) { |
928 | ide_end_request(drive, 1, rq->nr_sectors); | |
929 | return ide_stopped; | |
930 | } | |
ff1bfbc1 | 931 | goto end_request; |
1da177e4 LT |
932 | } |
933 | ||
1823649b | 934 | ide_read_bcount_and_ireason(drive, &len, &ireason); |
0041e7c6 BZ |
935 | |
936 | thislen = blk_fs_request(rq) ? len : rq->data_len; | |
1da177e4 LT |
937 | if (thislen > len) |
938 | thislen = len; | |
939 | ||
5a3ea3b4 | 940 | /* If DRQ is clear, the command has completed. */ |
aaa04c28 | 941 | if ((stat & DRQ_STAT) == 0) { |
0041e7c6 BZ |
942 | if (blk_fs_request(rq)) { |
943 | /* | |
944 | * If we're not done reading/writing, complain. | |
945 | * Otherwise, complete the command normally. | |
946 | */ | |
947 | uptodate = 1; | |
948 | if (rq->current_nr_sectors > 0) { | |
949 | printk(KERN_ERR "%s: %s: data underrun " | |
950 | "(%d blocks)\n", | |
177773ed | 951 | drive->name, __func__, |
0041e7c6 BZ |
952 | rq->current_nr_sectors); |
953 | if (!write) | |
954 | rq->cmd_flags |= REQ_FAILED; | |
955 | uptodate = 0; | |
956 | } | |
957 | cdrom_end_request(drive, uptodate); | |
958 | return ide_stopped; | |
959 | } else if (!blk_pc_request(rq)) { | |
ff1bfbc1 | 960 | ide_cd_request_sense_fixup(rq); |
5a3ea3b4 | 961 | /* complain if we still have data left to transfer */ |
ff1bfbc1 BZ |
962 | uptodate = rq->data_len ? 0 : 1; |
963 | } | |
964 | goto end_request; | |
aaa04c28 | 965 | } |
1da177e4 | 966 | |
5a3ea3b4 | 967 | /* check which way to transfer data */ |
9f10d9ee BZ |
968 | if (ide_cd_check_ireason(drive, rq, len, ireason, write)) |
969 | return ide_stopped; | |
0041e7c6 | 970 | |
9f10d9ee BZ |
971 | if (blk_fs_request(rq)) { |
972 | if (write == 0) { | |
0041e7c6 BZ |
973 | int nskip; |
974 | ||
975 | if (ide_cd_check_transfer_size(drive, len)) { | |
976 | cdrom_end_request(drive, 0); | |
977 | return ide_stopped; | |
978 | } | |
979 | ||
980 | /* | |
981 | * First, figure out if we need to bit-bucket | |
982 | * any of the leading sectors. | |
983 | */ | |
984 | nskip = min_t(int, rq->current_nr_sectors | |
985 | - bio_cur_sectors(rq->bio), | |
986 | thislen >> 9); | |
987 | if (nskip > 0) { | |
ae8789f0 | 988 | ide_pad_transfer(drive, write, nskip << 9); |
0041e7c6 BZ |
989 | rq->current_nr_sectors -= nskip; |
990 | thislen -= (nskip << 9); | |
991 | } | |
992 | } | |
ff1bfbc1 | 993 | } |
1da177e4 | 994 | |
ff1bfbc1 BZ |
995 | if (ireason == 0) { |
996 | write = 1; | |
374e042c | 997 | xferfunc = hwif->tp_ops->output_data; |
9f10d9ee | 998 | } else { |
ff1bfbc1 | 999 | write = 0; |
374e042c | 1000 | xferfunc = hwif->tp_ops->input_data; |
1da177e4 LT |
1001 | } |
1002 | ||
5a3ea3b4 | 1003 | /* transfer data */ |
1da177e4 | 1004 | while (thislen > 0) { |
0041e7c6 | 1005 | u8 *ptr = blk_fs_request(rq) ? NULL : rq->data; |
a11e77db | 1006 | int blen = rq->data_len; |
1da177e4 | 1007 | |
5a3ea3b4 | 1008 | /* bio backed? */ |
1da177e4 | 1009 | if (rq->bio) { |
0041e7c6 BZ |
1010 | if (blk_fs_request(rq)) { |
1011 | ptr = rq->buffer; | |
1012 | blen = rq->current_nr_sectors << 9; | |
1013 | } else { | |
1014 | ptr = bio_data(rq->bio); | |
1015 | blen = bio_iovec(rq->bio)->bv_len; | |
1016 | } | |
1da177e4 LT |
1017 | } |
1018 | ||
1019 | if (!ptr) { | |
0041e7c6 BZ |
1020 | if (blk_fs_request(rq) && !write) |
1021 | /* | |
968c4964 | 1022 | * If the buffers are full, pipe the rest into |
5a3ea3b4 BP |
1023 | * oblivion. |
1024 | */ | |
ae8789f0 | 1025 | ide_pad_transfer(drive, 0, thislen); |
0041e7c6 BZ |
1026 | else { |
1027 | printk(KERN_ERR "%s: confused, missing data\n", | |
1028 | drive->name); | |
1029 | blk_dump_rq_flags(rq, rq_data_dir(rq) | |
1030 | ? "cdrom_newpc_intr, write" | |
1031 | : "cdrom_newpc_intr, read"); | |
1032 | } | |
1da177e4 LT |
1033 | break; |
1034 | } | |
1035 | ||
1036 | if (blen > thislen) | |
1037 | blen = thislen; | |
1038 | ||
9567b349 | 1039 | xferfunc(drive, NULL, ptr, blen); |
1da177e4 LT |
1040 | |
1041 | thislen -= blen; | |
1042 | len -= blen; | |
1da177e4 | 1043 | |
0041e7c6 BZ |
1044 | if (blk_fs_request(rq)) { |
1045 | rq->buffer += blen; | |
1046 | rq->nr_sectors -= (blen >> 9); | |
1047 | rq->current_nr_sectors -= (blen >> 9); | |
1048 | rq->sector += (blen >> 9); | |
1049 | ||
1050 | if (rq->current_nr_sectors == 0 && rq->nr_sectors) | |
1051 | cdrom_end_request(drive, 1); | |
1052 | } else { | |
1053 | rq->data_len -= blen; | |
1054 | ||
aaa04c28 KU |
1055 | /* |
1056 | * The request can't be completed until DRQ is cleared. | |
1057 | * So complete the data, but don't complete the request | |
1058 | * using the dummy function for the callback feature | |
1059 | * of blk_end_request_callback(). | |
1060 | */ | |
0041e7c6 BZ |
1061 | if (rq->bio) |
1062 | blk_end_request_callback(rq, 0, blen, | |
aaa04c28 | 1063 | cdrom_newpc_intr_dummy_cb); |
0041e7c6 BZ |
1064 | else |
1065 | rq->data += blen; | |
1066 | } | |
bcd88ac3 AS |
1067 | if (!write && blk_sense_request(rq)) |
1068 | rq->sense_len += blen; | |
1da177e4 LT |
1069 | } |
1070 | ||
5a3ea3b4 | 1071 | /* pad, if necessary */ |
0041e7c6 | 1072 | if (!blk_fs_request(rq) && len > 0) |
ae8789f0 | 1073 | ide_pad_transfer(drive, write, len); |
1da177e4 | 1074 | |
ff1bfbc1 BZ |
1075 | if (blk_pc_request(rq)) { |
1076 | timeout = rq->timeout; | |
ff1bfbc1 BZ |
1077 | } else { |
1078 | timeout = ATAPI_WAIT_PC; | |
0041e7c6 BZ |
1079 | if (!blk_fs_request(rq)) |
1080 | expiry = cdrom_timer_expiry; | |
ff1bfbc1 BZ |
1081 | } |
1082 | ||
1083 | ide_set_handler(drive, cdrom_newpc_intr, timeout, expiry); | |
1da177e4 | 1084 | return ide_started; |
ff1bfbc1 BZ |
1085 | |
1086 | end_request: | |
1087 | if (blk_pc_request(rq)) { | |
1088 | unsigned long flags; | |
14e04c3f KU |
1089 | unsigned int dlen = rq->data_len; |
1090 | ||
1091 | if (dma) | |
1092 | rq->data_len = 0; | |
ff1bfbc1 BZ |
1093 | |
1094 | spin_lock_irqsave(&ide_lock, flags); | |
14e04c3f | 1095 | if (__blk_end_request(rq, 0, dlen)) |
ff1bfbc1 BZ |
1096 | BUG(); |
1097 | HWGROUP(drive)->rq = NULL; | |
1098 | spin_unlock_irqrestore(&ide_lock, flags); | |
1099 | } else { | |
1100 | if (!uptodate) | |
1101 | rq->cmd_flags |= REQ_FAILED; | |
1102 | cdrom_end_request(drive, uptodate); | |
1103 | } | |
1104 | return ide_stopped; | |
1da177e4 LT |
1105 | } |
1106 | ||
21ea1f0f | 1107 | static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) |
1da177e4 | 1108 | { |
21ea1f0f BZ |
1109 | struct cdrom_info *cd = drive->driver_data; |
1110 | int write = rq_data_dir(rq) == WRITE; | |
1111 | unsigned short sectors_per_frame = | |
1112 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
1da177e4 | 1113 | |
21ea1f0f | 1114 | if (write) { |
5a3ea3b4 | 1115 | /* disk has become write protected */ |
21ea1f0f BZ |
1116 | if (cd->disk->policy) { |
1117 | cdrom_end_request(drive, 0); | |
1118 | return ide_stopped; | |
1119 | } | |
1120 | } else { | |
1121 | /* | |
1122 | * We may be retrying this request after an error. Fix up any | |
1123 | * weirdness which might be present in the request packet. | |
1124 | */ | |
1125 | restore_request(rq); | |
1da177e4 LT |
1126 | } |
1127 | ||
5a3ea3b4 | 1128 | /* use DMA, if possible / writes *must* be hardware frame aligned */ |
21ea1f0f BZ |
1129 | if ((rq->nr_sectors & (sectors_per_frame - 1)) || |
1130 | (rq->sector & (sectors_per_frame - 1))) { | |
1131 | if (write) { | |
1132 | cdrom_end_request(drive, 0); | |
1133 | return ide_stopped; | |
1134 | } | |
1135 | cd->dma = 0; | |
1136 | } else | |
1137 | cd->dma = drive->using_dma; | |
1da177e4 | 1138 | |
21ea1f0f BZ |
1139 | if (write) |
1140 | cd->devinfo.media_written = 1; | |
1da177e4 | 1141 | |
b6ca440a | 1142 | return ide_started; |
1da177e4 LT |
1143 | } |
1144 | ||
1145 | static ide_startstop_t cdrom_do_newpc_cont(ide_drive_t *drive) | |
1146 | { | |
1147 | struct request *rq = HWGROUP(drive)->rq; | |
1148 | ||
1da177e4 LT |
1149 | return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr); |
1150 | } | |
1151 | ||
b6ca440a | 1152 | static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) |
1da177e4 LT |
1153 | { |
1154 | struct cdrom_info *info = drive->driver_data; | |
1155 | ||
c9f56a80 BZ |
1156 | if (blk_pc_request(rq)) |
1157 | rq->cmd_flags |= REQ_QUIET; | |
1158 | else | |
1159 | rq->cmd_flags &= ~REQ_FAILED; | |
1da177e4 LT |
1160 | |
1161 | info->dma = 0; | |
1da177e4 | 1162 | |
5a3ea3b4 | 1163 | /* sg request */ |
e5318b53 FT |
1164 | if (rq->bio || ((rq->cmd_type == REQ_TYPE_ATA_PC) && rq->data_len)) { |
1165 | struct request_queue *q = drive->queue; | |
1166 | unsigned int alignment; | |
1167 | unsigned long addr; | |
0b6abc17 | 1168 | unsigned long stack_mask = ~(THREAD_SIZE - 1); |
1da177e4 | 1169 | |
e5318b53 FT |
1170 | if (rq->bio) |
1171 | addr = (unsigned long)bio_data(rq->bio); | |
1172 | else | |
1173 | addr = (unsigned long)rq->data; | |
1174 | ||
1da177e4 LT |
1175 | info->dma = drive->using_dma; |
1176 | ||
1177 | /* | |
1178 | * check if dma is safe | |
5d9e4ea5 LT |
1179 | * |
1180 | * NOTE! The "len" and "addr" checks should possibly have | |
1181 | * separate masks. | |
1da177e4 | 1182 | */ |
e5318b53 FT |
1183 | alignment = queue_dma_alignment(q) | q->dma_pad_mask; |
1184 | if (addr & alignment || rq->data_len & alignment) | |
1da177e4 | 1185 | info->dma = 0; |
0b6abc17 FT |
1186 | |
1187 | if (!((addr & stack_mask) ^ | |
1188 | ((unsigned long)current->stack & stack_mask))) | |
1189 | info->dma = 0; | |
1da177e4 | 1190 | } |
1da177e4 LT |
1191 | } |
1192 | ||
5a3ea3b4 | 1193 | /* |
1da177e4 LT |
1194 | * cdrom driver request routine. |
1195 | */ | |
99384aea | 1196 | static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, |
e5e076a3 | 1197 | sector_t block) |
1da177e4 | 1198 | { |
1da177e4 | 1199 | struct cdrom_info *info = drive->driver_data; |
b6ca440a BP |
1200 | ide_handler_t *fn; |
1201 | int xferlen; | |
1da177e4 LT |
1202 | |
1203 | if (blk_fs_request(rq)) { | |
570f89ea | 1204 | if (drive->atapi_flags & IDE_AFLAG_SEEKING) { |
b73c7ee2 | 1205 | ide_hwif_t *hwif = drive->hwif; |
1da177e4 | 1206 | unsigned long elapsed = jiffies - info->start_seek; |
374e042c | 1207 | int stat = hwif->tp_ops->read_status(hwif); |
1da177e4 LT |
1208 | |
1209 | if ((stat & SEEK_STAT) != SEEK_STAT) { | |
1210 | if (elapsed < IDECD_SEEK_TIMEOUT) { | |
83c8565d BP |
1211 | ide_stall_queue(drive, |
1212 | IDECD_SEEK_TIMER); | |
1da177e4 LT |
1213 | return ide_stopped; |
1214 | } | |
83c8565d BP |
1215 | printk(KERN_ERR "%s: DSC timeout\n", |
1216 | drive->name); | |
1da177e4 | 1217 | } |
570f89ea | 1218 | drive->atapi_flags &= ~IDE_AFLAG_SEEKING; |
1da177e4 | 1219 | } |
83c8565d BP |
1220 | if (rq_data_dir(rq) == READ && |
1221 | IDE_LARGE_SEEK(info->last_block, block, | |
b6ca440a BP |
1222 | IDECD_SEEK_THRESHOLD) && |
1223 | drive->dsc_overlap) { | |
1224 | xferlen = 0; | |
1225 | fn = cdrom_start_seek_continuation; | |
e529c608 | 1226 | |
4b01fcbb BP |
1227 | info->dma = 0; |
1228 | info->start_seek = jiffies; | |
e529c608 BP |
1229 | |
1230 | ide_cd_prepare_seek_request(drive, rq); | |
b6ca440a BP |
1231 | } else { |
1232 | xferlen = 32768; | |
1233 | fn = cdrom_start_rw_cont; | |
90eb808e | 1234 | |
b6ca440a BP |
1235 | if (cdrom_start_rw(drive, rq) == ide_stopped) |
1236 | return ide_stopped; | |
90eb808e BP |
1237 | |
1238 | if (ide_cd_prepare_rw_request(drive, rq) == ide_stopped) | |
1239 | return ide_stopped; | |
b6ca440a | 1240 | } |
1da177e4 | 1241 | info->last_block = block; |
c9f56a80 | 1242 | } else if (blk_sense_request(rq) || blk_pc_request(rq) || |
cea2885a | 1243 | rq->cmd_type == REQ_TYPE_ATA_PC) { |
b6ca440a BP |
1244 | xferlen = rq->data_len; |
1245 | fn = cdrom_do_newpc_cont; | |
7fcebda5 BP |
1246 | |
1247 | if (!rq->timeout) | |
1248 | rq->timeout = ATAPI_WAIT_PC; | |
1249 | ||
b6ca440a | 1250 | cdrom_do_block_pc(drive, rq); |
4aff5e23 | 1251 | } else if (blk_special_request(rq)) { |
5a3ea3b4 | 1252 | /* right now this can only be a reset... */ |
1da177e4 LT |
1253 | cdrom_end_request(drive, 1); |
1254 | return ide_stopped; | |
ab9d6e33 BP |
1255 | } else { |
1256 | blk_dump_rq_flags(rq, "ide-cd bad flags"); | |
1257 | cdrom_end_request(drive, 0); | |
1258 | return ide_stopped; | |
1da177e4 | 1259 | } |
b6ca440a BP |
1260 | |
1261 | return cdrom_start_packet_command(drive, xferlen, fn); | |
1da177e4 LT |
1262 | } |
1263 | ||
5a3ea3b4 | 1264 | /* |
1da177e4 LT |
1265 | * Ioctl handling. |
1266 | * | |
5a3ea3b4 BP |
1267 | * Routines which queue packet commands take as a final argument a pointer to a |
1268 | * request_sense struct. If execution of the command results in an error with a | |
1269 | * CHECK CONDITION status, this structure will be filled with the results of the | |
1270 | * subsequent request sense command. The pointer can also be NULL, in which case | |
1271 | * no sense information is returned. | |
1da177e4 | 1272 | */ |
e5e076a3 | 1273 | static void msf_from_bcd(struct atapi_msf *msf) |
1da177e4 | 1274 | { |
fc99856a AB |
1275 | msf->minute = bcd2bin(msf->minute); |
1276 | msf->second = bcd2bin(msf->second); | |
1277 | msf->frame = bcd2bin(msf->frame); | |
1da177e4 LT |
1278 | } |
1279 | ||
f9afd18b | 1280 | int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 | 1281 | { |
1da177e4 LT |
1282 | struct cdrom_info *info = drive->driver_data; |
1283 | struct cdrom_device_info *cdi = &info->devinfo; | |
5f828546 | 1284 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1285 | |
5f828546 FT |
1286 | memset(cmd, 0, BLK_MAX_CDB); |
1287 | cmd[0] = GPCMD_TEST_UNIT_READY; | |
1da177e4 | 1288 | |
cdf6000d | 1289 | /* |
5a3ea3b4 BP |
1290 | * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs |
1291 | * instead of supporting the LOAD_UNLOAD opcode. | |
cdf6000d | 1292 | */ |
5f828546 | 1293 | cmd[7] = cdi->sanyo_slot % 3; |
1da177e4 | 1294 | |
141d3b27 | 1295 | return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET); |
1da177e4 LT |
1296 | } |
1297 | ||
1da177e4 LT |
1298 | static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, |
1299 | unsigned long *sectors_per_frame, | |
1300 | struct request_sense *sense) | |
1301 | { | |
1302 | struct { | |
141d3b27 HH |
1303 | __be32 lba; |
1304 | __be32 blocklen; | |
1da177e4 LT |
1305 | } capbuf; |
1306 | ||
1307 | int stat; | |
5f828546 FT |
1308 | unsigned char cmd[BLK_MAX_CDB]; |
1309 | unsigned len = sizeof(capbuf); | |
938bb03d | 1310 | u32 blocklen; |
1da177e4 | 1311 | |
5f828546 FT |
1312 | memset(cmd, 0, BLK_MAX_CDB); |
1313 | cmd[0] = GPCMD_READ_CDVD_CAPACITY; | |
1da177e4 | 1314 | |
5f828546 FT |
1315 | stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, |
1316 | REQ_QUIET); | |
e8e7b9eb JA |
1317 | if (stat) |
1318 | return stat; | |
1319 | ||
1320 | /* | |
1321 | * Sanity check the given block size | |
1322 | */ | |
938bb03d PT |
1323 | blocklen = be32_to_cpu(capbuf.blocklen); |
1324 | switch (blocklen) { | |
1325 | case 512: | |
1326 | case 1024: | |
1327 | case 2048: | |
1328 | case 4096: | |
e8e7b9eb JA |
1329 | break; |
1330 | default: | |
1331 | printk(KERN_ERR "%s: weird block size %u\n", | |
938bb03d | 1332 | drive->name, blocklen); |
e8e7b9eb JA |
1333 | printk(KERN_ERR "%s: default to 2kb block size\n", |
1334 | drive->name); | |
938bb03d | 1335 | blocklen = 2048; |
e8e7b9eb | 1336 | break; |
1da177e4 LT |
1337 | } |
1338 | ||
e8e7b9eb | 1339 | *capacity = 1 + be32_to_cpu(capbuf.lba); |
938bb03d | 1340 | *sectors_per_frame = blocklen >> SECTOR_BITS; |
e8e7b9eb | 1341 | return 0; |
1da177e4 LT |
1342 | } |
1343 | ||
1344 | static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, | |
1345 | int format, char *buf, int buflen, | |
1346 | struct request_sense *sense) | |
1347 | { | |
5f828546 | 1348 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1349 | |
5f828546 | 1350 | memset(cmd, 0, BLK_MAX_CDB); |
1da177e4 | 1351 | |
5f828546 FT |
1352 | cmd[0] = GPCMD_READ_TOC_PMA_ATIP; |
1353 | cmd[6] = trackno; | |
1354 | cmd[7] = (buflen >> 8); | |
1355 | cmd[8] = (buflen & 0xff); | |
1356 | cmd[9] = (format << 6); | |
1da177e4 LT |
1357 | |
1358 | if (msf_flag) | |
5f828546 | 1359 | cmd[1] = 2; |
1da177e4 | 1360 | |
5f828546 | 1361 | return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); |
1da177e4 LT |
1362 | } |
1363 | ||
1da177e4 | 1364 | /* Try to read the entire TOC for the disk into our internal buffer. */ |
17802998 | 1365 | int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 LT |
1366 | { |
1367 | int stat, ntracks, i; | |
1368 | struct cdrom_info *info = drive->driver_data; | |
1369 | struct cdrom_device_info *cdi = &info->devinfo; | |
1370 | struct atapi_toc *toc = info->toc; | |
1371 | struct { | |
1372 | struct atapi_toc_header hdr; | |
1373 | struct atapi_toc_entry ent; | |
1374 | } ms_tmp; | |
1375 | long last_written; | |
1376 | unsigned long sectors_per_frame = SECTORS_PER_FRAME; | |
1377 | ||
1378 | if (toc == NULL) { | |
5a3ea3b4 | 1379 | /* try to allocate space */ |
2a91f3e5 | 1380 | toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); |
1da177e4 | 1381 | if (toc == NULL) { |
83c8565d BP |
1382 | printk(KERN_ERR "%s: No cdrom TOC buffer!\n", |
1383 | drive->name); | |
1da177e4 LT |
1384 | return -ENOMEM; |
1385 | } | |
2a91f3e5 | 1386 | info->toc = toc; |
1da177e4 LT |
1387 | } |
1388 | ||
5a3ea3b4 BP |
1389 | /* |
1390 | * Check to see if the existing data is still valid. If it is, | |
1391 | * just return. | |
1392 | */ | |
1da177e4 LT |
1393 | (void) cdrom_check_status(drive, sense); |
1394 | ||
570f89ea | 1395 | if (drive->atapi_flags & IDE_AFLAG_TOC_VALID) |
1da177e4 LT |
1396 | return 0; |
1397 | ||
5a3ea3b4 | 1398 | /* try to get the total cdrom capacity and sector size */ |
1da177e4 LT |
1399 | stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame, |
1400 | sense); | |
1401 | if (stat) | |
1402 | toc->capacity = 0x1fffff; | |
1403 | ||
1404 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
5a3ea3b4 | 1405 | /* save a private copy of the TOC capacity for error handling */ |
dbe217af AC |
1406 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1407 | ||
1da177e4 LT |
1408 | blk_queue_hardsect_size(drive->queue, |
1409 | sectors_per_frame << SECTOR_BITS); | |
1410 | ||
5a3ea3b4 | 1411 | /* first read just the header, so we know how long the TOC is */ |
1da177e4 LT |
1412 | stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, |
1413 | sizeof(struct atapi_toc_header), sense); | |
2a91f3e5 JJ |
1414 | if (stat) |
1415 | return stat; | |
1da177e4 | 1416 | |
570f89ea | 1417 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1418 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1419 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1420 | } |
1da177e4 LT |
1421 | |
1422 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; | |
1423 | if (ntracks <= 0) | |
1424 | return -EIO; | |
1425 | if (ntracks > MAX_TRACKS) | |
1426 | ntracks = MAX_TRACKS; | |
1427 | ||
5a3ea3b4 | 1428 | /* now read the whole schmeer */ |
1da177e4 LT |
1429 | stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, |
1430 | (char *)&toc->hdr, | |
1431 | sizeof(struct atapi_toc_header) + | |
1432 | (ntracks + 1) * | |
1433 | sizeof(struct atapi_toc_entry), sense); | |
1434 | ||
1435 | if (stat && toc->hdr.first_track > 1) { | |
5a3ea3b4 BP |
1436 | /* |
1437 | * Cds with CDI tracks only don't have any TOC entries, despite | |
1438 | * of this the returned values are | |
1439 | * first_track == last_track = number of CDI tracks + 1, | |
1440 | * so that this case is indistinguishable from the same layout | |
1441 | * plus an additional audio track. If we get an error for the | |
1442 | * regular case, we assume a CDI without additional audio | |
1443 | * tracks. In this case the readable TOC is empty (CDI tracks | |
1444 | * are not included) and only holds the Leadout entry. | |
1445 | * | |
1446 | * Heiko Eißfeldt. | |
1447 | */ | |
1da177e4 LT |
1448 | ntracks = 0; |
1449 | stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, | |
1450 | (char *)&toc->hdr, | |
1451 | sizeof(struct atapi_toc_header) + | |
1452 | (ntracks + 1) * | |
1453 | sizeof(struct atapi_toc_entry), | |
1454 | sense); | |
cdf6000d | 1455 | if (stat) |
1da177e4 | 1456 | return stat; |
cdf6000d | 1457 | |
570f89ea | 1458 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1459 | toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT); |
1460 | toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT); | |
cdf6000d | 1461 | } else { |
1da177e4 LT |
1462 | toc->hdr.first_track = CDROM_LEADOUT; |
1463 | toc->hdr.last_track = CDROM_LEADOUT; | |
1464 | } | |
1465 | } | |
1466 | ||
1467 | if (stat) | |
1468 | return stat; | |
1469 | ||
7eb43fd2 | 1470 | toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); |
1da177e4 | 1471 | |
570f89ea | 1472 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1473 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1474 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1475 | } |
1da177e4 | 1476 | |
cdf6000d | 1477 | for (i = 0; i <= ntracks; i++) { |
570f89ea BP |
1478 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
1479 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) | |
fc99856a | 1480 | toc->ent[i].track = bcd2bin(toc->ent[i].track); |
1da177e4 LT |
1481 | msf_from_bcd(&toc->ent[i].addr.msf); |
1482 | } | |
9ce70fb2 PC |
1483 | toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, |
1484 | toc->ent[i].addr.msf.second, | |
1485 | toc->ent[i].addr.msf.frame); | |
1da177e4 LT |
1486 | } |
1487 | ||
1da177e4 | 1488 | if (toc->hdr.first_track != CDROM_LEADOUT) { |
5a3ea3b4 | 1489 | /* read the multisession information */ |
1da177e4 LT |
1490 | stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, |
1491 | sizeof(ms_tmp), sense); | |
2a91f3e5 JJ |
1492 | if (stat) |
1493 | return stat; | |
1da177e4 LT |
1494 | |
1495 | toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); | |
1496 | } else { | |
e5e076a3 BP |
1497 | ms_tmp.hdr.last_track = CDROM_LEADOUT; |
1498 | ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; | |
1da177e4 LT |
1499 | toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ |
1500 | } | |
1501 | ||
570f89ea | 1502 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
5a3ea3b4 | 1503 | /* re-read multisession information using MSF format */ |
1da177e4 LT |
1504 | stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, |
1505 | sizeof(ms_tmp), sense); | |
1506 | if (stat) | |
1507 | return stat; | |
1508 | ||
9ce70fb2 | 1509 | msf_from_bcd(&ms_tmp.ent.addr.msf); |
1da177e4 | 1510 | toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, |
9ce70fb2 | 1511 | ms_tmp.ent.addr.msf.second, |
1da177e4 LT |
1512 | ms_tmp.ent.addr.msf.frame); |
1513 | } | |
1da177e4 LT |
1514 | |
1515 | toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); | |
1516 | ||
5a3ea3b4 | 1517 | /* now try to get the total cdrom capacity */ |
1da177e4 LT |
1518 | stat = cdrom_get_last_written(cdi, &last_written); |
1519 | if (!stat && (last_written > toc->capacity)) { | |
1520 | toc->capacity = last_written; | |
1521 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
dbe217af | 1522 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1da177e4 LT |
1523 | } |
1524 | ||
1525 | /* Remember that we've read this stuff. */ | |
570f89ea | 1526 | drive->atapi_flags |= IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
1527 | |
1528 | return 0; | |
1529 | } | |
1530 | ||
17802998 | 1531 | int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) |
9235e68b EP |
1532 | { |
1533 | struct cdrom_info *info = drive->driver_data; | |
1534 | struct cdrom_device_info *cdi = &info->devinfo; | |
1535 | struct packet_command cgc; | |
455d80a9 | 1536 | int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; |
9235e68b | 1537 | |
570f89ea | 1538 | if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0) |
455d80a9 | 1539 | size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; |
9235e68b | 1540 | |
455d80a9 | 1541 | init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); |
5a3ea3b4 BP |
1542 | do { |
1543 | /* we seem to get stat=0x01,err=0x00 the first time (??) */ | |
9235e68b EP |
1544 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); |
1545 | if (!stat) | |
1546 | break; | |
1547 | } while (--attempts); | |
1548 | return stat; | |
1549 | } | |
1550 | ||
17802998 | 1551 | void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) |
9235e68b | 1552 | { |
4fe67178 | 1553 | struct cdrom_info *cd = drive->driver_data; |
481c8c64 BZ |
1554 | u16 curspeed, maxspeed; |
1555 | ||
570f89ea | 1556 | if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) { |
141d3b27 HH |
1557 | curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]); |
1558 | maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]); | |
9235e68b | 1559 | } else { |
141d3b27 HH |
1560 | curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]); |
1561 | maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]); | |
9235e68b | 1562 | } |
481c8c64 | 1563 | |
2bc4cf2d BZ |
1564 | cd->current_speed = (curspeed + (176/2)) / 176; |
1565 | cd->max_speed = (maxspeed + (176/2)) / 176; | |
9235e68b EP |
1566 | } |
1567 | ||
20e7f7ef BZ |
1568 | #define IDE_CD_CAPABILITIES \ |
1569 | (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ | |
1570 | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ | |
1571 | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ | |
1572 | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ | |
1573 | CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) | |
1da177e4 | 1574 | |
1da177e4 LT |
1575 | static struct cdrom_device_ops ide_cdrom_dops = { |
1576 | .open = ide_cdrom_open_real, | |
1577 | .release = ide_cdrom_release_real, | |
1578 | .drive_status = ide_cdrom_drive_status, | |
1579 | .media_changed = ide_cdrom_check_media_change_real, | |
1580 | .tray_move = ide_cdrom_tray_move, | |
1581 | .lock_door = ide_cdrom_lock_door, | |
1582 | .select_speed = ide_cdrom_select_speed, | |
1583 | .get_last_session = ide_cdrom_get_last_session, | |
1584 | .get_mcn = ide_cdrom_get_mcn, | |
1585 | .reset = ide_cdrom_reset, | |
1586 | .audio_ioctl = ide_cdrom_audio_ioctl, | |
20e7f7ef | 1587 | .capability = IDE_CD_CAPABILITIES, |
1da177e4 LT |
1588 | .generic_packet = ide_cdrom_packet, |
1589 | }; | |
1590 | ||
9ce70fb2 | 1591 | static int ide_cdrom_register(ide_drive_t *drive, int nslots) |
1da177e4 LT |
1592 | { |
1593 | struct cdrom_info *info = drive->driver_data; | |
1594 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1595 | ||
1596 | devinfo->ops = &ide_cdrom_dops; | |
2bc4cf2d | 1597 | devinfo->speed = info->current_speed; |
1da177e4 | 1598 | devinfo->capacity = nslots; |
2a91f3e5 | 1599 | devinfo->handle = drive; |
1da177e4 | 1600 | strcpy(devinfo->name, drive->name); |
1da177e4 | 1601 | |
570f89ea | 1602 | if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT) |
3cbd814e BZ |
1603 | devinfo->mask |= CDC_SELECT_SPEED; |
1604 | ||
1da177e4 LT |
1605 | devinfo->disk = info->disk; |
1606 | return register_cdrom(devinfo); | |
1607 | } | |
1608 | ||
e5e076a3 | 1609 | static int ide_cdrom_probe_capabilities(ide_drive_t *drive) |
1da177e4 | 1610 | { |
4fe67178 BZ |
1611 | struct cdrom_info *cd = drive->driver_data; |
1612 | struct cdrom_device_info *cdi = &cd->devinfo; | |
455d80a9 BZ |
1613 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; |
1614 | mechtype_t mechtype; | |
1da177e4 LT |
1615 | int nslots = 1; |
1616 | ||
3f1b86d8 BZ |
1617 | cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | |
1618 | CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | | |
1619 | CDC_MO_DRIVE | CDC_RAM); | |
1620 | ||
1da177e4 | 1621 | if (drive->media == ide_optical) { |
3f1b86d8 | 1622 | cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); |
83c8565d BP |
1623 | printk(KERN_ERR "%s: ATAPI magneto-optical drive\n", |
1624 | drive->name); | |
1da177e4 LT |
1625 | return nslots; |
1626 | } | |
1627 | ||
570f89ea BP |
1628 | if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) { |
1629 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; | |
3f1b86d8 | 1630 | cdi->mask &= ~CDC_PLAY_AUDIO; |
1da177e4 LT |
1631 | return nslots; |
1632 | } | |
1633 | ||
1634 | /* | |
5a3ea3b4 BP |
1635 | * We have to cheat a little here. the packet will eventually be queued |
1636 | * with ide_cdrom_packet(), which extracts the drive from cdi->handle. | |
1637 | * Since this device hasn't been registered with the Uniform layer yet, | |
1638 | * it can't do this. Same goes for cdi->ops. | |
1da177e4 | 1639 | */ |
2a91f3e5 | 1640 | cdi->handle = drive; |
1da177e4 LT |
1641 | cdi->ops = &ide_cdrom_dops; |
1642 | ||
455d80a9 | 1643 | if (ide_cdrom_get_capabilities(drive, buf)) |
1da177e4 LT |
1644 | return 0; |
1645 | ||
455d80a9 | 1646 | if ((buf[8 + 6] & 0x01) == 0) |
570f89ea | 1647 | drive->atapi_flags |= IDE_AFLAG_NO_DOORLOCK; |
455d80a9 | 1648 | if (buf[8 + 6] & 0x08) |
570f89ea | 1649 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; |
455d80a9 | 1650 | if (buf[8 + 3] & 0x01) |
3f1b86d8 | 1651 | cdi->mask &= ~CDC_CD_R; |
455d80a9 | 1652 | if (buf[8 + 3] & 0x02) |
3f1b86d8 | 1653 | cdi->mask &= ~(CDC_CD_RW | CDC_RAM); |
455d80a9 | 1654 | if (buf[8 + 2] & 0x38) |
3f1b86d8 | 1655 | cdi->mask &= ~CDC_DVD; |
455d80a9 | 1656 | if (buf[8 + 3] & 0x20) |
3f1b86d8 | 1657 | cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); |
455d80a9 | 1658 | if (buf[8 + 3] & 0x10) |
3f1b86d8 | 1659 | cdi->mask &= ~CDC_DVD_R; |
570f89ea | 1660 | if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK)) |
3f1b86d8 | 1661 | cdi->mask &= ~CDC_PLAY_AUDIO; |
455d80a9 BZ |
1662 | |
1663 | mechtype = buf[8 + 6] >> 5; | |
f20f2586 BP |
1664 | if (mechtype == mechtype_caddy || |
1665 | mechtype == mechtype_popup || | |
1666 | (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE)) | |
3f1b86d8 | 1667 | cdi->mask |= CDC_CLOSE_TRAY; |
1da177e4 | 1668 | |
1da177e4 | 1669 | if (cdi->sanyo_slot > 0) { |
3f1b86d8 | 1670 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 | 1671 | nslots = 3; |
cdf6000d BZ |
1672 | } else if (mechtype == mechtype_individual_changer || |
1673 | mechtype == mechtype_cartridge_changer) { | |
2609d06d BZ |
1674 | nslots = cdrom_number_of_slots(cdi); |
1675 | if (nslots > 1) | |
3f1b86d8 | 1676 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 LT |
1677 | } |
1678 | ||
455d80a9 | 1679 | ide_cdrom_update_speed(drive, buf); |
4fe67178 | 1680 | |
1da177e4 | 1681 | printk(KERN_INFO "%s: ATAPI", drive->name); |
4fe67178 BZ |
1682 | |
1683 | /* don't print speed if the drive reported 0 */ | |
2bc4cf2d BZ |
1684 | if (cd->max_speed) |
1685 | printk(KERN_CONT " %dX", cd->max_speed); | |
4fe67178 | 1686 | |
3f1b86d8 | 1687 | printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); |
1da177e4 | 1688 | |
3f1b86d8 BZ |
1689 | if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) |
1690 | printk(KERN_CONT " DVD%s%s", | |
1691 | (cdi->mask & CDC_DVD_R) ? "" : "-R", | |
1692 | (cdi->mask & CDC_DVD_RAM) ? "" : "-RAM"); | |
1da177e4 | 1693 | |
3f1b86d8 BZ |
1694 | if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) |
1695 | printk(KERN_CONT " CD%s%s", | |
1696 | (cdi->mask & CDC_CD_R) ? "" : "-R", | |
1697 | (cdi->mask & CDC_CD_RW) ? "" : "/RW"); | |
1da177e4 | 1698 | |
3f1b86d8 BZ |
1699 | if ((cdi->mask & CDC_SELECT_DISC) == 0) |
1700 | printk(KERN_CONT " changer w/%d slots", nslots); | |
1701 | else | |
1702 | printk(KERN_CONT " drive"); | |
1da177e4 | 1703 | |
141d3b27 | 1704 | printk(KERN_CONT ", %dkB Cache\n", be16_to_cpup((__be16 *)&buf[8 + 12])); |
1da177e4 LT |
1705 | |
1706 | return nslots; | |
1707 | } | |
1708 | ||
5a3ea3b4 | 1709 | /* standard prep_rq_fn that builds 10 byte cmds */ |
165125e1 | 1710 | static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) |
1da177e4 LT |
1711 | { |
1712 | int hard_sect = queue_hardsect_size(q); | |
1713 | long block = (long)rq->hard_sector / (hard_sect >> 9); | |
1714 | unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9); | |
1715 | ||
d34c87e4 | 1716 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
1717 | |
1718 | if (rq_data_dir(rq) == READ) | |
1719 | rq->cmd[0] = GPCMD_READ_10; | |
1720 | else | |
1721 | rq->cmd[0] = GPCMD_WRITE_10; | |
1722 | ||
1723 | /* | |
1724 | * fill in lba | |
1725 | */ | |
1726 | rq->cmd[2] = (block >> 24) & 0xff; | |
1727 | rq->cmd[3] = (block >> 16) & 0xff; | |
1728 | rq->cmd[4] = (block >> 8) & 0xff; | |
1729 | rq->cmd[5] = block & 0xff; | |
1730 | ||
1731 | /* | |
1732 | * and transfer length | |
1733 | */ | |
1734 | rq->cmd[7] = (blocks >> 8) & 0xff; | |
1735 | rq->cmd[8] = blocks & 0xff; | |
1736 | rq->cmd_len = 10; | |
1737 | return BLKPREP_OK; | |
1738 | } | |
1739 | ||
1740 | /* | |
1741 | * Most of the SCSI commands are supported directly by ATAPI devices. | |
1742 | * This transform handles the few exceptions. | |
1743 | */ | |
1744 | static int ide_cdrom_prep_pc(struct request *rq) | |
1745 | { | |
1746 | u8 *c = rq->cmd; | |
1747 | ||
5a3ea3b4 | 1748 | /* transform 6-byte read/write commands to the 10-byte version */ |
1da177e4 LT |
1749 | if (c[0] == READ_6 || c[0] == WRITE_6) { |
1750 | c[8] = c[4]; | |
1751 | c[5] = c[3]; | |
1752 | c[4] = c[2]; | |
1753 | c[3] = c[1] & 0x1f; | |
1754 | c[2] = 0; | |
1755 | c[1] &= 0xe0; | |
1756 | c[0] += (READ_10 - READ_6); | |
1757 | rq->cmd_len = 10; | |
1758 | return BLKPREP_OK; | |
1759 | } | |
1760 | ||
1761 | /* | |
1762 | * it's silly to pretend we understand 6-byte sense commands, just | |
1763 | * reject with ILLEGAL_REQUEST and the caller should take the | |
1764 | * appropriate action | |
1765 | */ | |
1766 | if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { | |
1767 | rq->errors = ILLEGAL_REQUEST; | |
1768 | return BLKPREP_KILL; | |
1769 | } | |
9ce70fb2 | 1770 | |
1da177e4 LT |
1771 | return BLKPREP_OK; |
1772 | } | |
1773 | ||
165125e1 | 1774 | static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) |
1da177e4 | 1775 | { |
4aff5e23 | 1776 | if (blk_fs_request(rq)) |
1da177e4 | 1777 | return ide_cdrom_prep_fs(q, rq); |
4aff5e23 | 1778 | else if (blk_pc_request(rq)) |
1da177e4 LT |
1779 | return ide_cdrom_prep_pc(rq); |
1780 | ||
1781 | return 0; | |
1782 | } | |
1783 | ||
e59724c7 BZ |
1784 | struct cd_list_entry { |
1785 | const char *id_model; | |
1786 | const char *id_firmware; | |
1787 | unsigned int cd_flags; | |
1788 | }; | |
1789 | ||
5e657a9e BP |
1790 | #ifdef CONFIG_IDE_PROC_FS |
1791 | static sector_t ide_cdrom_capacity(ide_drive_t *drive) | |
1792 | { | |
1793 | unsigned long capacity, sectors_per_frame; | |
1794 | ||
1795 | if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL)) | |
1796 | return 0; | |
1797 | ||
1798 | return capacity * sectors_per_frame; | |
1799 | } | |
1800 | ||
e5e076a3 BP |
1801 | static int proc_idecd_read_capacity(char *page, char **start, off_t off, |
1802 | int count, int *eof, void *data) | |
5e657a9e BP |
1803 | { |
1804 | ide_drive_t *drive = data; | |
1805 | int len; | |
1806 | ||
1807 | len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive)); | |
1808 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); | |
1809 | } | |
1810 | ||
1811 | static ide_proc_entry_t idecd_proc[] = { | |
1812 | { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL }, | |
1813 | { NULL, 0, NULL, NULL } | |
1814 | }; | |
1815 | ||
1816 | static void ide_cdrom_add_settings(ide_drive_t *drive) | |
1817 | { | |
1818 | ide_add_setting(drive, "dsc_overlap", SETTING_RW, TYPE_BYTE, 0, 1, 1, 1, | |
1819 | &drive->dsc_overlap, NULL); | |
1820 | } | |
1821 | #else | |
1822 | static inline void ide_cdrom_add_settings(ide_drive_t *drive) { ; } | |
1823 | #endif | |
1824 | ||
e59724c7 BZ |
1825 | static const struct cd_list_entry ide_cd_quirks_list[] = { |
1826 | /* Limit transfer size per interrupt. */ | |
570f89ea BP |
1827 | { "SAMSUNG CD-ROM SCR-2430", NULL, IDE_AFLAG_LIMIT_NFRAMES }, |
1828 | { "SAMSUNG CD-ROM SCR-2432", NULL, IDE_AFLAG_LIMIT_NFRAMES }, | |
e59724c7 | 1829 | /* SCR-3231 doesn't support the SET_CD_SPEED command. */ |
570f89ea | 1830 | { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT }, |
e59724c7 | 1831 | /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ |
570f89ea BP |
1832 | { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD | |
1833 | IDE_AFLAG_PRE_ATAPI12, }, | |
e59724c7 | 1834 | /* Vertos 300, some versions of this drive like to talk BCD. */ |
570f89ea | 1835 | { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, }, |
e59724c7 | 1836 | /* Vertos 600 ESD. */ |
570f89ea | 1837 | { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, }, |
e59724c7 BZ |
1838 | /* |
1839 | * Sanyo 3 CD changer uses a non-standard command for CD changing | |
1840 | * (by default standard ATAPI support for CD changers is used). | |
1841 | */ | |
570f89ea BP |
1842 | { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD }, |
1843 | { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD }, | |
1844 | { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD }, | |
e59724c7 | 1845 | /* Stingray 8X CD-ROM. */ |
570f89ea | 1846 | { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 }, |
e59724c7 BZ |
1847 | /* |
1848 | * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length | |
1849 | * mode sense page capabilities size, but older drives break. | |
1850 | */ | |
570f89ea BP |
1851 | { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, |
1852 | { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, | |
e59724c7 | 1853 | /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ |
570f89ea | 1854 | { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS }, |
e59724c7 BZ |
1855 | /* |
1856 | * Some drives used by Apple don't advertise audio play | |
1857 | * but they do support reading TOC & audio datas. | |
1858 | */ | |
570f89ea BP |
1859 | { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
1860 | { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1861 | { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1862 | { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1863 | { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
f3e85ee7 | 1864 | { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
f20f2586 | 1865 | { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
e59724c7 BZ |
1866 | { NULL, NULL, 0 } |
1867 | }; | |
1868 | ||
1869 | static unsigned int ide_cd_flags(struct hd_driveid *id) | |
1870 | { | |
1871 | const struct cd_list_entry *cle = ide_cd_quirks_list; | |
1872 | ||
1873 | while (cle->id_model) { | |
1874 | if (strcmp(cle->id_model, id->model) == 0 && | |
1875 | (cle->id_firmware == NULL || | |
1876 | strstr(id->fw_rev, cle->id_firmware))) | |
1877 | return cle->cd_flags; | |
1878 | cle++; | |
1879 | } | |
1880 | ||
1881 | return 0; | |
1882 | } | |
1883 | ||
e5e076a3 | 1884 | static int ide_cdrom_setup(ide_drive_t *drive) |
1da177e4 | 1885 | { |
4fe67178 BZ |
1886 | struct cdrom_info *cd = drive->driver_data; |
1887 | struct cdrom_device_info *cdi = &cd->devinfo; | |
e59724c7 | 1888 | struct hd_driveid *id = drive->id; |
1da177e4 LT |
1889 | int nslots; |
1890 | ||
1891 | blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn); | |
1892 | blk_queue_dma_alignment(drive->queue, 31); | |
e5318b53 | 1893 | blk_queue_update_dma_pad(drive->queue, 15); |
1da177e4 LT |
1894 | drive->queue->unplug_delay = (1 * HZ) / 1000; |
1895 | if (!drive->queue->unplug_delay) | |
1896 | drive->queue->unplug_delay = 1; | |
1897 | ||
1898 | drive->special.all = 0; | |
1899 | ||
570f89ea | 1900 | drive->atapi_flags = IDE_AFLAG_MEDIA_CHANGED | IDE_AFLAG_NO_EJECT | |
e59724c7 | 1901 | ide_cd_flags(id); |
1da177e4 | 1902 | |
e59724c7 | 1903 | if ((id->config & 0x0060) == 0x20) |
570f89ea | 1904 | drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT; |
e59724c7 | 1905 | |
570f89ea | 1906 | if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) && |
e59724c7 | 1907 | id->fw_rev[4] == '1' && id->fw_rev[6] <= '2') |
570f89ea BP |
1908 | drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD | |
1909 | IDE_AFLAG_TOCADDR_AS_BCD); | |
1910 | else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) && | |
e59724c7 | 1911 | id->fw_rev[4] == '1' && id->fw_rev[6] <= '2') |
570f89ea BP |
1912 | drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD; |
1913 | else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD) | |
5a3ea3b4 BP |
1914 | /* 3 => use CD in slot 0 */ |
1915 | cdi->sanyo_slot = 3; | |
1da177e4 | 1916 | |
9ce70fb2 | 1917 | nslots = ide_cdrom_probe_capabilities(drive); |
1da177e4 | 1918 | |
5a3ea3b4 | 1919 | /* set correct block size */ |
1da177e4 LT |
1920 | blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE); |
1921 | ||
cc12175f | 1922 | drive->dsc_overlap = (drive->next != drive); |
1da177e4 LT |
1923 | |
1924 | if (ide_cdrom_register(drive, nslots)) { | |
83c8565d BP |
1925 | printk(KERN_ERR "%s: %s failed to register device with the" |
1926 | " cdrom driver.\n", drive->name, __func__); | |
4fe67178 | 1927 | cd->devinfo.handle = NULL; |
1da177e4 LT |
1928 | return 1; |
1929 | } | |
1930 | ide_cdrom_add_settings(drive); | |
1931 | return 0; | |
1932 | } | |
1933 | ||
4031bbe4 | 1934 | static void ide_cd_remove(ide_drive_t *drive) |
1da177e4 LT |
1935 | { |
1936 | struct cdrom_info *info = drive->driver_data; | |
1937 | ||
7662d046 | 1938 | ide_proc_unregister_driver(drive, info->driver); |
1da177e4 LT |
1939 | |
1940 | del_gendisk(info->disk); | |
1941 | ||
1942 | ide_cd_put(info); | |
1da177e4 LT |
1943 | } |
1944 | ||
1945 | static void ide_cd_release(struct kref *kref) | |
1946 | { | |
1947 | struct cdrom_info *info = to_ide_cd(kref); | |
1948 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1949 | ide_drive_t *drive = info->drive; | |
1950 | struct gendisk *g = info->disk; | |
1951 | ||
6044ec88 | 1952 | kfree(info->toc); |
0a0c4114 AM |
1953 | if (devinfo->handle == drive) |
1954 | unregister_cdrom(devinfo); | |
1da177e4 LT |
1955 | drive->dsc_overlap = 0; |
1956 | drive->driver_data = NULL; | |
1957 | blk_queue_prep_rq(drive->queue, NULL); | |
1958 | g->private_data = NULL; | |
1959 | put_disk(g); | |
1960 | kfree(info); | |
1961 | } | |
1962 | ||
4031bbe4 | 1963 | static int ide_cd_probe(ide_drive_t *); |
1da177e4 | 1964 | |
1da177e4 | 1965 | static ide_driver_t ide_cdrom_driver = { |
8604affd | 1966 | .gen_driver = { |
4ef3b8f4 | 1967 | .owner = THIS_MODULE, |
8604affd BZ |
1968 | .name = "ide-cdrom", |
1969 | .bus = &ide_bus_type, | |
8604affd | 1970 | }, |
4031bbe4 RK |
1971 | .probe = ide_cd_probe, |
1972 | .remove = ide_cd_remove, | |
1da177e4 LT |
1973 | .version = IDECD_VERSION, |
1974 | .media = ide_cdrom, | |
1da177e4 | 1975 | .supports_dsc_overlap = 1, |
99384aea | 1976 | .do_request = ide_cd_do_request, |
1da177e4 LT |
1977 | .end_request = ide_end_request, |
1978 | .error = __ide_error, | |
7662d046 | 1979 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 | 1980 | .proc = idecd_proc, |
7662d046 | 1981 | #endif |
1da177e4 LT |
1982 | }; |
1983 | ||
9ce70fb2 | 1984 | static int idecd_open(struct inode *inode, struct file *file) |
1da177e4 LT |
1985 | { |
1986 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
1987 | struct cdrom_info *info; | |
1da177e4 LT |
1988 | int rc = -ENOMEM; |
1989 | ||
9ce70fb2 PC |
1990 | info = ide_cd_get(disk); |
1991 | if (!info) | |
1da177e4 LT |
1992 | return -ENXIO; |
1993 | ||
968c4964 | 1994 | rc = cdrom_open(&info->devinfo, inode, file); |
1da177e4 LT |
1995 | |
1996 | if (rc < 0) | |
1997 | ide_cd_put(info); | |
1998 | ||
1999 | return rc; | |
2000 | } | |
2001 | ||
9ce70fb2 | 2002 | static int idecd_release(struct inode *inode, struct file *file) |
1da177e4 LT |
2003 | { |
2004 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
2005 | struct cdrom_info *info = ide_cd_g(disk); | |
1da177e4 | 2006 | |
9ce70fb2 | 2007 | cdrom_release(&info->devinfo, file); |
1da177e4 LT |
2008 | |
2009 | ide_cd_put(info); | |
2010 | ||
2011 | return 0; | |
2012 | } | |
2013 | ||
6a2900b6 CH |
2014 | static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
2015 | { | |
2016 | struct packet_command cgc; | |
2017 | char buffer[16]; | |
2018 | int stat; | |
2019 | char spindown; | |
2020 | ||
2021 | if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) | |
2022 | return -EFAULT; | |
2023 | ||
2024 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
2025 | ||
2026 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
2027 | if (stat) | |
2028 | return stat; | |
2029 | ||
2030 | buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); | |
2031 | return cdrom_mode_select(cdi, &cgc); | |
2032 | } | |
2033 | ||
2034 | static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) | |
2035 | { | |
2036 | struct packet_command cgc; | |
2037 | char buffer[16]; | |
2038 | int stat; | |
9ce70fb2 | 2039 | char spindown; |
6a2900b6 CH |
2040 | |
2041 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
2042 | ||
2043 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
2044 | if (stat) | |
2045 | return stat; | |
2046 | ||
2047 | spindown = buffer[11] & 0x0f; | |
9ce70fb2 | 2048 | if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) |
6a2900b6 CH |
2049 | return -EFAULT; |
2050 | return 0; | |
2051 | } | |
2052 | ||
9ce70fb2 | 2053 | static int idecd_ioctl(struct inode *inode, struct file *file, |
1da177e4 LT |
2054 | unsigned int cmd, unsigned long arg) |
2055 | { | |
2056 | struct block_device *bdev = inode->i_bdev; | |
2057 | struct cdrom_info *info = ide_cd_g(bdev->bd_disk); | |
2058 | int err; | |
2059 | ||
6a2900b6 | 2060 | switch (cmd) { |
9ce70fb2 | 2061 | case CDROMSETSPINDOWN: |
6a2900b6 | 2062 | return idecd_set_spindown(&info->devinfo, arg); |
9ce70fb2 | 2063 | case CDROMGETSPINDOWN: |
6a2900b6 CH |
2064 | return idecd_get_spindown(&info->devinfo, arg); |
2065 | default: | |
2066 | break; | |
9ce70fb2 | 2067 | } |
6a2900b6 CH |
2068 | |
2069 | err = generic_ide_ioctl(info->drive, file, bdev, cmd, arg); | |
1da177e4 LT |
2070 | if (err == -EINVAL) |
2071 | err = cdrom_ioctl(file, &info->devinfo, inode, cmd, arg); | |
2072 | ||
2073 | return err; | |
2074 | } | |
2075 | ||
2076 | static int idecd_media_changed(struct gendisk *disk) | |
2077 | { | |
2078 | struct cdrom_info *info = ide_cd_g(disk); | |
2079 | return cdrom_media_changed(&info->devinfo); | |
2080 | } | |
2081 | ||
2082 | static int idecd_revalidate_disk(struct gendisk *disk) | |
2083 | { | |
2084 | struct cdrom_info *info = ide_cd_g(disk); | |
2085 | struct request_sense sense; | |
139c829d BZ |
2086 | |
2087 | ide_cd_read_toc(info->drive, &sense); | |
2088 | ||
1da177e4 LT |
2089 | return 0; |
2090 | } | |
2091 | ||
2092 | static struct block_device_operations idecd_ops = { | |
9ce70fb2 PC |
2093 | .owner = THIS_MODULE, |
2094 | .open = idecd_open, | |
2095 | .release = idecd_release, | |
2096 | .ioctl = idecd_ioctl, | |
2097 | .media_changed = idecd_media_changed, | |
2098 | .revalidate_disk = idecd_revalidate_disk | |
1da177e4 LT |
2099 | }; |
2100 | ||
5a3ea3b4 | 2101 | /* module options */ |
9ce70fb2 | 2102 | static char *ignore; |
1da177e4 LT |
2103 | |
2104 | module_param(ignore, charp, 0400); | |
2105 | MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); | |
2106 | ||
4031bbe4 | 2107 | static int ide_cd_probe(ide_drive_t *drive) |
1da177e4 LT |
2108 | { |
2109 | struct cdrom_info *info; | |
2110 | struct gendisk *g; | |
2111 | struct request_sense sense; | |
2112 | ||
2113 | if (!strstr("ide-cdrom", drive->driver_req)) | |
2114 | goto failed; | |
2115 | if (!drive->present) | |
2116 | goto failed; | |
2117 | if (drive->media != ide_cdrom && drive->media != ide_optical) | |
2118 | goto failed; | |
2119 | /* skip drives that we were told to ignore */ | |
2120 | if (ignore != NULL) { | |
2121 | if (strstr(ignore, drive->name)) { | |
83c8565d BP |
2122 | printk(KERN_INFO "ide-cd: ignoring drive %s\n", |
2123 | drive->name); | |
1da177e4 LT |
2124 | goto failed; |
2125 | } | |
2126 | } | |
f5e3c2fa | 2127 | info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); |
1da177e4 | 2128 | if (info == NULL) { |
83c8565d BP |
2129 | printk(KERN_ERR "%s: Can't allocate a cdrom structure\n", |
2130 | drive->name); | |
1da177e4 LT |
2131 | goto failed; |
2132 | } | |
2133 | ||
2134 | g = alloc_disk(1 << PARTN_BITS); | |
2135 | if (!g) | |
2136 | goto out_free_cd; | |
2137 | ||
2138 | ide_init_disk(g, drive); | |
2139 | ||
7662d046 | 2140 | ide_proc_register_driver(drive, &ide_cdrom_driver); |
8604affd | 2141 | |
1da177e4 LT |
2142 | kref_init(&info->kref); |
2143 | ||
2144 | info->drive = drive; | |
2145 | info->driver = &ide_cdrom_driver; | |
2146 | info->disk = g; | |
2147 | ||
2148 | g->private_data = &info->driver; | |
2149 | ||
2150 | drive->driver_data = info; | |
2151 | ||
1da177e4 | 2152 | g->minors = 1; |
1da177e4 LT |
2153 | g->driverfs_dev = &drive->gendev; |
2154 | g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; | |
2155 | if (ide_cdrom_setup(drive)) { | |
7662d046 | 2156 | ide_proc_unregister_driver(drive, &ide_cdrom_driver); |
05017db3 | 2157 | ide_cd_release(&info->kref); |
1da177e4 LT |
2158 | goto failed; |
2159 | } | |
1da177e4 | 2160 | |
139c829d | 2161 | ide_cd_read_toc(drive, &sense); |
1da177e4 LT |
2162 | g->fops = &idecd_ops; |
2163 | g->flags |= GENHD_FL_REMOVABLE; | |
2164 | add_disk(g); | |
2165 | return 0; | |
2166 | ||
1da177e4 LT |
2167 | out_free_cd: |
2168 | kfree(info); | |
2169 | failed: | |
8604affd | 2170 | return -ENODEV; |
1da177e4 LT |
2171 | } |
2172 | ||
2173 | static void __exit ide_cdrom_exit(void) | |
2174 | { | |
8604affd | 2175 | driver_unregister(&ide_cdrom_driver.gen_driver); |
1da177e4 | 2176 | } |
17514e8a BZ |
2177 | |
2178 | static int __init ide_cdrom_init(void) | |
1da177e4 | 2179 | { |
8604affd | 2180 | return driver_register(&ide_cdrom_driver.gen_driver); |
1da177e4 LT |
2181 | } |
2182 | ||
263756ec | 2183 | MODULE_ALIAS("ide:*m-cdrom*"); |
972560fb | 2184 | MODULE_ALIAS("ide-cd"); |
1da177e4 LT |
2185 | module_init(ide_cdrom_init); |
2186 | module_exit(ide_cdrom_exit); | |
2187 | MODULE_LICENSE("GPL"); |