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 | |
08da591e BZ |
55 | static void ide_cd_release(struct kref *); |
56 | ||
1da177e4 LT |
57 | static struct cdrom_info *ide_cd_get(struct gendisk *disk) |
58 | { | |
59 | struct cdrom_info *cd = NULL; | |
60 | ||
cf8b8975 | 61 | mutex_lock(&idecd_ref_mutex); |
5aeddf90 | 62 | cd = ide_drv_g(disk, cdrom_info); |
08da591e | 63 | if (cd) { |
d3e33ff5 | 64 | if (ide_device_get(cd->drive)) |
08da591e | 65 | cd = NULL; |
d3e33ff5 BZ |
66 | else |
67 | kref_get(&cd->kref); | |
68 | ||
08da591e | 69 | } |
cf8b8975 | 70 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
71 | return cd; |
72 | } | |
73 | ||
1da177e4 LT |
74 | static void ide_cd_put(struct cdrom_info *cd) |
75 | { | |
d3e33ff5 BZ |
76 | ide_drive_t *drive = cd->drive; |
77 | ||
cf8b8975 | 78 | mutex_lock(&idecd_ref_mutex); |
1da177e4 | 79 | kref_put(&cd->kref, ide_cd_release); |
d3e33ff5 | 80 | ide_device_put(drive); |
cf8b8975 | 81 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
82 | } |
83 | ||
5a3ea3b4 | 84 | /* |
1da177e4 LT |
85 | * Generic packet command support and error handling routines. |
86 | */ | |
87 | ||
5a3ea3b4 | 88 | /* Mark that we've seen a media change and invalidate our internal buffers. */ |
9ce70fb2 | 89 | static void cdrom_saw_media_change(ide_drive_t *drive) |
1da177e4 | 90 | { |
570f89ea BP |
91 | drive->atapi_flags |= IDE_AFLAG_MEDIA_CHANGED; |
92 | drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID; | |
1da177e4 LT |
93 | } |
94 | ||
95 | static int cdrom_log_sense(ide_drive_t *drive, struct request *rq, | |
96 | struct request_sense *sense) | |
97 | { | |
98 | int log = 0; | |
99 | ||
4aff5e23 | 100 | if (!sense || !rq || (rq->cmd_flags & REQ_QUIET)) |
1da177e4 LT |
101 | return 0; |
102 | ||
103 | switch (sense->sense_key) { | |
9ce70fb2 PC |
104 | case NO_SENSE: |
105 | case RECOVERED_ERROR: | |
106 | break; | |
107 | case NOT_READY: | |
108 | /* | |
5a3ea3b4 BP |
109 | * don't care about tray state messages for e.g. capacity |
110 | * commands or in-progress or becoming ready | |
9ce70fb2 PC |
111 | */ |
112 | if (sense->asc == 0x3a || sense->asc == 0x04) | |
1da177e4 | 113 | break; |
9ce70fb2 PC |
114 | log = 1; |
115 | break; | |
116 | case ILLEGAL_REQUEST: | |
117 | /* | |
5a3ea3b4 BP |
118 | * don't log START_STOP unit with LoEj set, since we cannot |
119 | * reliably check if drive can auto-close | |
9ce70fb2 PC |
120 | */ |
121 | if (rq->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24) | |
1da177e4 | 122 | break; |
9ce70fb2 PC |
123 | log = 1; |
124 | break; | |
125 | case UNIT_ATTENTION: | |
126 | /* | |
5a3ea3b4 BP |
127 | * Make good and sure we've seen this potential media change. |
128 | * Some drives (i.e. Creative) fail to present the correct sense | |
129 | * key in the error register. | |
9ce70fb2 PC |
130 | */ |
131 | cdrom_saw_media_change(drive); | |
132 | break; | |
133 | default: | |
134 | log = 1; | |
135 | break; | |
1da177e4 LT |
136 | } |
137 | return log; | |
138 | } | |
139 | ||
e5e076a3 | 140 | static void cdrom_analyze_sense_data(ide_drive_t *drive, |
1da177e4 LT |
141 | struct request *failed_command, |
142 | struct request_sense *sense) | |
143 | { | |
dbe217af AC |
144 | unsigned long sector; |
145 | unsigned long bio_sectors; | |
dbe217af AC |
146 | struct cdrom_info *info = drive->driver_data; |
147 | ||
1da177e4 LT |
148 | if (!cdrom_log_sense(drive, failed_command, sense)) |
149 | return; | |
150 | ||
151 | /* | |
5a3ea3b4 BP |
152 | * If a read toc is executed for a CD-R or CD-RW medium where the first |
153 | * toc has not been recorded yet, it will fail with 05/24/00 (which is a | |
154 | * confusing error) | |
1da177e4 LT |
155 | */ |
156 | if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP) | |
157 | if (sense->sense_key == 0x05 && sense->asc == 0x24) | |
158 | return; | |
159 | ||
5a3ea3b4 BP |
160 | /* current error */ |
161 | if (sense->error_code == 0x70) { | |
9ce70fb2 | 162 | switch (sense->sense_key) { |
dbe217af AC |
163 | case MEDIUM_ERROR: |
164 | case VOLUME_OVERFLOW: | |
165 | case ILLEGAL_REQUEST: | |
166 | if (!sense->valid) | |
167 | break; | |
168 | if (failed_command == NULL || | |
169 | !blk_fs_request(failed_command)) | |
170 | break; | |
171 | sector = (sense->information[0] << 24) | | |
172 | (sense->information[1] << 16) | | |
173 | (sense->information[2] << 8) | | |
174 | (sense->information[3]); | |
175 | ||
dbe217af | 176 | if (drive->queue->hardsect_size == 2048) |
5a3ea3b4 BP |
177 | /* device sector size is 2K */ |
178 | sector <<= 2; | |
eee49298 RK |
179 | |
180 | bio_sectors = max(bio_sectors(failed_command->bio), 4U); | |
9ce70fb2 | 181 | sector &= ~(bio_sectors - 1); |
dbe217af | 182 | |
dbe217af | 183 | if (sector < get_capacity(info->disk) && |
e5e076a3 | 184 | drive->probed_capacity - sector < 4 * 75) |
dbe217af | 185 | set_capacity(info->disk, sector); |
9ce70fb2 PC |
186 | } |
187 | } | |
1da177e4 | 188 | |
972560fb | 189 | ide_cd_log_error(drive->name, failed_command, sense); |
1da177e4 LT |
190 | } |
191 | ||
1da177e4 LT |
192 | static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, |
193 | struct request *failed_command) | |
194 | { | |
195 | struct cdrom_info *info = drive->driver_data; | |
196 | struct request *rq = &info->request_sense_request; | |
197 | ||
198 | if (sense == NULL) | |
199 | sense = &info->sense_data; | |
200 | ||
201 | /* stuff the sense request in front of our current request */ | |
ed820f19 FT |
202 | blk_rq_init(NULL, rq); |
203 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
204 | rq->rq_disk = info->disk; | |
1da177e4 LT |
205 | |
206 | rq->data = sense; | |
207 | rq->cmd[0] = GPCMD_REQUEST_SENSE; | |
e5e076a3 BP |
208 | rq->cmd[4] = 18; |
209 | rq->data_len = 18; | |
1da177e4 | 210 | |
4aff5e23 | 211 | rq->cmd_type = REQ_TYPE_SENSE; |
e8a96aa7 | 212 | rq->cmd_flags |= REQ_PREEMPT; |
1da177e4 LT |
213 | |
214 | /* NOTE! Save the failed command in "rq->buffer" */ | |
215 | rq->buffer = (void *) failed_command; | |
216 | ||
63f5abb0 | 217 | ide_do_drive_cmd(drive, rq); |
1da177e4 LT |
218 | } |
219 | ||
9ce70fb2 | 220 | static void cdrom_end_request(ide_drive_t *drive, int uptodate) |
1da177e4 LT |
221 | { |
222 | struct request *rq = HWGROUP(drive)->rq; | |
223 | int nsectors = rq->hard_cur_sectors; | |
224 | ||
4aff5e23 | 225 | if (blk_sense_request(rq) && uptodate) { |
1da177e4 | 226 | /* |
4aff5e23 JA |
227 | * For REQ_TYPE_SENSE, "rq->buffer" points to the original |
228 | * failed request | |
1da177e4 LT |
229 | */ |
230 | struct request *failed = (struct request *) rq->buffer; | |
231 | struct cdrom_info *info = drive->driver_data; | |
232 | void *sense = &info->sense_data; | |
233 | unsigned long flags; | |
234 | ||
235 | if (failed) { | |
236 | if (failed->sense) { | |
237 | sense = failed->sense; | |
238 | failed->sense_len = rq->sense_len; | |
239 | } | |
dbe217af | 240 | cdrom_analyze_sense_data(drive, failed, sense); |
1da177e4 | 241 | /* |
5a3ea3b4 | 242 | * now end the failed request |
1da177e4 | 243 | */ |
dbe217af AC |
244 | if (blk_fs_request(failed)) { |
245 | if (ide_end_dequeued_request(drive, failed, 0, | |
246 | failed->hard_nr_sectors)) | |
247 | BUG(); | |
248 | } else { | |
249 | spin_lock_irqsave(&ide_lock, flags); | |
5e36bb6e KU |
250 | if (__blk_end_request(failed, -EIO, |
251 | failed->data_len)) | |
252 | BUG(); | |
dbe217af AC |
253 | spin_unlock_irqrestore(&ide_lock, flags); |
254 | } | |
255 | } else | |
256 | cdrom_analyze_sense_data(drive, NULL, sense); | |
1da177e4 LT |
257 | } |
258 | ||
259 | if (!rq->current_nr_sectors && blk_fs_request(rq)) | |
260 | uptodate = 1; | |
261 | /* make sure it's fully ended */ | |
262 | if (blk_pc_request(rq)) | |
263 | nsectors = (rq->data_len + 511) >> 9; | |
264 | if (!nsectors) | |
265 | nsectors = 1; | |
266 | ||
267 | ide_end_request(drive, uptodate, nsectors); | |
268 | } | |
269 | ||
83c8565d | 270 | static void ide_dump_status_no_sense(ide_drive_t *drive, const char *msg, u8 st) |
dbe217af | 271 | { |
83c8565d | 272 | if (st & 0x80) |
dbe217af | 273 | return; |
83c8565d | 274 | ide_dump_status(drive, msg, st); |
dbe217af AC |
275 | } |
276 | ||
5a3ea3b4 BP |
277 | /* |
278 | * Returns: | |
279 | * 0: if the request should be continued. | |
280 | * 1: if the request was ended. | |
281 | */ | |
1da177e4 LT |
282 | static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) |
283 | { | |
b73c7ee2 BZ |
284 | ide_hwif_t *hwif = drive->hwif; |
285 | struct request *rq = hwif->hwgroup->rq; | |
1da177e4 | 286 | int stat, err, sense_key; |
9ce70fb2 | 287 | |
5a3ea3b4 | 288 | /* check for errors */ |
374e042c | 289 | stat = hwif->tp_ops->read_status(hwif); |
c47137a9 | 290 | |
1da177e4 LT |
291 | if (stat_ret) |
292 | *stat_ret = stat; | |
293 | ||
294 | if (OK_STAT(stat, good_stat, BAD_R_STAT)) | |
295 | return 0; | |
296 | ||
5a3ea3b4 | 297 | /* get the IDE error register */ |
64a57fe4 | 298 | err = ide_read_error(drive); |
1da177e4 LT |
299 | sense_key = err >> 4; |
300 | ||
301 | if (rq == NULL) { | |
e5e076a3 BP |
302 | printk(KERN_ERR "%s: missing rq in %s\n", |
303 | drive->name, __func__); | |
1da177e4 LT |
304 | return 1; |
305 | } | |
306 | ||
4aff5e23 | 307 | if (blk_sense_request(rq)) { |
5a3ea3b4 BP |
308 | /* |
309 | * We got an error trying to get sense info from the drive | |
310 | * (probably while trying to recover from a former error). | |
311 | * Just give up. | |
312 | */ | |
4aff5e23 | 313 | rq->cmd_flags |= REQ_FAILED; |
1da177e4 LT |
314 | cdrom_end_request(drive, 0); |
315 | ide_error(drive, "request sense failure", stat); | |
316 | return 1; | |
317 | ||
8770c018 | 318 | } else if (blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) { |
1da177e4 | 319 | /* All other functions, except for READ. */ |
1da177e4 LT |
320 | |
321 | /* | |
322 | * if we have an error, pass back CHECK_CONDITION as the | |
323 | * scsi status byte | |
324 | */ | |
b7156731 | 325 | if (blk_pc_request(rq) && !rq->errors) |
1da177e4 LT |
326 | rq->errors = SAM_STAT_CHECK_CONDITION; |
327 | ||
5a3ea3b4 | 328 | /* check for tray open */ |
1da177e4 | 329 | if (sense_key == NOT_READY) { |
9ce70fb2 | 330 | cdrom_saw_media_change(drive); |
1da177e4 | 331 | } else if (sense_key == UNIT_ATTENTION) { |
5a3ea3b4 | 332 | /* check for media change */ |
9ce70fb2 | 333 | cdrom_saw_media_change(drive); |
1da177e4 | 334 | return 0; |
9ce70fb2 PC |
335 | } else if (sense_key == ILLEGAL_REQUEST && |
336 | rq->cmd[0] == GPCMD_START_STOP_UNIT) { | |
337 | /* | |
338 | * Don't print error message for this condition-- | |
339 | * SFF8090i indicates that 5/24/00 is the correct | |
340 | * response to a request to close the tray if the | |
341 | * drive doesn't have that capability. | |
342 | * cdrom_log_sense() knows this! | |
343 | */ | |
4aff5e23 | 344 | } else if (!(rq->cmd_flags & REQ_QUIET)) { |
5a3ea3b4 | 345 | /* otherwise, print an error */ |
1da177e4 LT |
346 | ide_dump_status(drive, "packet command error", stat); |
347 | } | |
9ce70fb2 | 348 | |
4aff5e23 | 349 | rq->cmd_flags |= REQ_FAILED; |
1da177e4 LT |
350 | |
351 | /* | |
352 | * instead of playing games with moving completions around, | |
353 | * remove failed request completely and end it when the | |
354 | * request sense has completed | |
355 | */ | |
bbb89e3d | 356 | goto end_request; |
1da177e4 LT |
357 | |
358 | } else if (blk_fs_request(rq)) { | |
359 | int do_end_request = 0; | |
360 | ||
5a3ea3b4 | 361 | /* handle errors from READ and WRITE requests */ |
1da177e4 LT |
362 | |
363 | if (blk_noretry_request(rq)) | |
364 | do_end_request = 1; | |
365 | ||
366 | if (sense_key == NOT_READY) { | |
5a3ea3b4 | 367 | /* tray open */ |
1da177e4 | 368 | if (rq_data_dir(rq) == READ) { |
9ce70fb2 | 369 | cdrom_saw_media_change(drive); |
1da177e4 | 370 | |
5a3ea3b4 | 371 | /* fail the request */ |
e5e076a3 | 372 | printk(KERN_ERR "%s: tray open\n", drive->name); |
1da177e4 LT |
373 | do_end_request = 1; |
374 | } else { | |
375 | struct cdrom_info *info = drive->driver_data; | |
376 | ||
5a3ea3b4 BP |
377 | /* |
378 | * Allow the drive 5 seconds to recover, some | |
1da177e4 | 379 | * devices will return this error while flushing |
5a3ea3b4 BP |
380 | * data from cache. |
381 | */ | |
1da177e4 | 382 | if (!rq->errors) |
83c8565d BP |
383 | info->write_timeout = jiffies + |
384 | ATAPI_WAIT_WRITE_BUSY; | |
1da177e4 LT |
385 | rq->errors = 1; |
386 | if (time_after(jiffies, info->write_timeout)) | |
387 | do_end_request = 1; | |
388 | else { | |
389 | unsigned long flags; | |
390 | ||
391 | /* | |
5a3ea3b4 BP |
392 | * take a breather relying on the unplug |
393 | * timer to kick us again | |
1da177e4 LT |
394 | */ |
395 | spin_lock_irqsave(&ide_lock, flags); | |
396 | blk_plug_device(drive->queue); | |
83c8565d BP |
397 | spin_unlock_irqrestore(&ide_lock, |
398 | flags); | |
1da177e4 LT |
399 | return 1; |
400 | } | |
401 | } | |
402 | } else if (sense_key == UNIT_ATTENTION) { | |
5a3ea3b4 | 403 | /* media change */ |
e5e076a3 | 404 | cdrom_saw_media_change(drive); |
1da177e4 | 405 | |
9ce70fb2 | 406 | /* |
5a3ea3b4 BP |
407 | * Arrange to retry the request but be sure to give up |
408 | * if we've retried too many times. | |
9ce70fb2 | 409 | */ |
1da177e4 LT |
410 | if (++rq->errors > ERROR_MAX) |
411 | do_end_request = 1; | |
412 | } else if (sense_key == ILLEGAL_REQUEST || | |
413 | sense_key == DATA_PROTECT) { | |
9ce70fb2 | 414 | /* |
5a3ea3b4 BP |
415 | * No point in retrying after an illegal request or data |
416 | * protect error. | |
9ce70fb2 PC |
417 | */ |
418 | ide_dump_status_no_sense(drive, "command error", stat); | |
1da177e4 LT |
419 | do_end_request = 1; |
420 | } else if (sense_key == MEDIUM_ERROR) { | |
9ce70fb2 PC |
421 | /* |
422 | * No point in re-trying a zillion times on a bad | |
5a3ea3b4 | 423 | * sector. If we got here the error is not correctable. |
9ce70fb2 | 424 | */ |
83c8565d BP |
425 | ide_dump_status_no_sense(drive, |
426 | "media error (bad sector)", | |
427 | stat); | |
1da177e4 LT |
428 | do_end_request = 1; |
429 | } else if (sense_key == BLANK_CHECK) { | |
5a3ea3b4 | 430 | /* disk appears blank ?? */ |
83c8565d BP |
431 | ide_dump_status_no_sense(drive, "media error (blank)", |
432 | stat); | |
1da177e4 | 433 | do_end_request = 1; |
3a7d2484 | 434 | } else if ((err & ~ATA_ABORTED) != 0) { |
5a3ea3b4 | 435 | /* go to the default handler for other errors */ |
1da177e4 LT |
436 | ide_error(drive, "cdrom_decode_status", stat); |
437 | return 1; | |
438 | } else if ((++rq->errors > ERROR_MAX)) { | |
5a3ea3b4 | 439 | /* we've racked up too many retries, abort */ |
1da177e4 LT |
440 | do_end_request = 1; |
441 | } | |
442 | ||
5a3ea3b4 BP |
443 | /* |
444 | * End a request through request sense analysis when we have | |
445 | * sense data. We need this in order to perform end of media | |
446 | * processing. | |
447 | */ | |
bbb89e3d BZ |
448 | if (do_end_request) |
449 | goto end_request; | |
dbe217af | 450 | |
bbb89e3d | 451 | /* |
5a3ea3b4 BP |
452 | * If we got a CHECK_CONDITION status, queue |
453 | * a request sense command. | |
bbb89e3d | 454 | */ |
3a7d2484 | 455 | if (stat & ATA_ERR) |
bbb89e3d | 456 | cdrom_queue_request_sense(drive, NULL, NULL); |
1da177e4 LT |
457 | } else { |
458 | blk_dump_rq_flags(rq, "ide-cd: bad rq"); | |
459 | cdrom_end_request(drive, 0); | |
460 | } | |
461 | ||
5a3ea3b4 | 462 | /* retry, or handle the next request */ |
1da177e4 | 463 | return 1; |
bbb89e3d BZ |
464 | |
465 | end_request: | |
3a7d2484 | 466 | if (stat & ATA_ERR) { |
bbb89e3d BZ |
467 | unsigned long flags; |
468 | ||
469 | spin_lock_irqsave(&ide_lock, flags); | |
470 | blkdev_dequeue_request(rq); | |
471 | HWGROUP(drive)->rq = NULL; | |
472 | spin_unlock_irqrestore(&ide_lock, flags); | |
473 | ||
474 | cdrom_queue_request_sense(drive, rq->sense, rq); | |
475 | } else | |
476 | cdrom_end_request(drive, 0); | |
477 | ||
478 | return 1; | |
1da177e4 LT |
479 | } |
480 | ||
481 | static int cdrom_timer_expiry(ide_drive_t *drive) | |
482 | { | |
483 | struct request *rq = HWGROUP(drive)->rq; | |
484 | unsigned long wait = 0; | |
485 | ||
486 | /* | |
5a3ea3b4 BP |
487 | * Some commands are *slow* and normally take a long time to complete. |
488 | * Usually we can use the ATAPI "disconnect" to bypass this, but not all | |
489 | * commands/drives support that. Let ide_timer_expiry keep polling us | |
490 | * for these. | |
1da177e4 LT |
491 | */ |
492 | switch (rq->cmd[0]) { | |
9ce70fb2 PC |
493 | case GPCMD_BLANK: |
494 | case GPCMD_FORMAT_UNIT: | |
495 | case GPCMD_RESERVE_RZONE_TRACK: | |
496 | case GPCMD_CLOSE_TRACK: | |
497 | case GPCMD_FLUSH_CACHE: | |
498 | wait = ATAPI_WAIT_PC; | |
499 | break; | |
500 | default: | |
501 | if (!(rq->cmd_flags & REQ_QUIET)) | |
83c8565d BP |
502 | printk(KERN_INFO "ide-cd: cmd 0x%x timed out\n", |
503 | rq->cmd[0]); | |
9ce70fb2 PC |
504 | wait = 0; |
505 | break; | |
1da177e4 LT |
506 | } |
507 | return wait; | |
508 | } | |
509 | ||
5a3ea3b4 BP |
510 | /* |
511 | * Set up the device registers for transferring a packet command on DEV, | |
512 | * expecting to later transfer XFERLEN bytes. HANDLER is the routine | |
513 | * which actually transfers the command to the drive. If this is a | |
514 | * drq_interrupt device, this routine will arrange for HANDLER to be | |
515 | * called when the interrupt from the drive arrives. Otherwise, HANDLER | |
516 | * will be called immediately after the drive is prepared for the transfer. | |
517 | */ | |
1da177e4 LT |
518 | static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive, |
519 | int xferlen, | |
520 | ide_handler_t *handler) | |
521 | { | |
1da177e4 LT |
522 | struct cdrom_info *info = drive->driver_data; |
523 | ide_hwif_t *hwif = drive->hwif; | |
524 | ||
3a6a3549 | 525 | /* FIXME: for Virtual DMA we must check harder */ |
1da177e4 | 526 | if (info->dma) |
5e37bdc0 | 527 | info->dma = !hwif->dma_ops->dma_setup(drive); |
1da177e4 | 528 | |
5a3ea3b4 | 529 | /* set up the controller registers */ |
9a410e79 BZ |
530 | ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL, |
531 | xferlen, info->dma); | |
4fe67178 | 532 | |
570f89ea | 533 | if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { |
f0dd8712 AL |
534 | /* waiting for CDB interrupt, not DMA yet. */ |
535 | if (info->dma) | |
536 | drive->waiting_for_dma = 0; | |
537 | ||
1da177e4 | 538 | /* packet command */ |
aaaade3f | 539 | ide_execute_command(drive, ATA_CMD_PACKET, handler, |
83c8565d | 540 | ATAPI_WAIT_PC, cdrom_timer_expiry); |
1da177e4 LT |
541 | return ide_started; |
542 | } else { | |
1fc14258 | 543 | ide_execute_pkt_cmd(drive); |
1da177e4 LT |
544 | |
545 | return (*handler) (drive); | |
546 | } | |
547 | } | |
548 | ||
5a3ea3b4 BP |
549 | /* |
550 | * Send a packet command to DRIVE described by CMD_BUF and CMD_LEN. The device | |
551 | * registers must have already been prepared by cdrom_start_packet_command. | |
552 | * HANDLER is the interrupt handler to call when the command completes or | |
553 | * there's data ready. | |
554 | */ | |
1da177e4 | 555 | #define ATAPI_MIN_CDB_BYTES 12 |
9ce70fb2 | 556 | static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive, |
1da177e4 LT |
557 | struct request *rq, |
558 | ide_handler_t *handler) | |
559 | { | |
560 | ide_hwif_t *hwif = drive->hwif; | |
561 | int cmd_len; | |
562 | struct cdrom_info *info = drive->driver_data; | |
563 | ide_startstop_t startstop; | |
564 | ||
570f89ea | 565 | if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { |
5a3ea3b4 BP |
566 | /* |
567 | * Here we should have been called after receiving an interrupt | |
568 | * from the device. DRQ should how be set. | |
569 | */ | |
1da177e4 | 570 | |
5a3ea3b4 | 571 | /* check for errors */ |
3a7d2484 | 572 | if (cdrom_decode_status(drive, ATA_DRQ, NULL)) |
1da177e4 | 573 | return ide_stopped; |
f0dd8712 | 574 | |
5a3ea3b4 | 575 | /* ok, next interrupt will be DMA interrupt */ |
f0dd8712 AL |
576 | if (info->dma) |
577 | drive->waiting_for_dma = 1; | |
1da177e4 | 578 | } else { |
5a3ea3b4 | 579 | /* otherwise, we must wait for DRQ to get set */ |
3a7d2484 BZ |
580 | if (ide_wait_stat(&startstop, drive, ATA_DRQ, |
581 | ATA_BUSY, WAIT_READY)) | |
1da177e4 LT |
582 | return startstop; |
583 | } | |
584 | ||
5a3ea3b4 | 585 | /* arm the interrupt handler */ |
1da177e4 LT |
586 | ide_set_handler(drive, handler, rq->timeout, cdrom_timer_expiry); |
587 | ||
588 | /* ATAPI commands get padded out to 12 bytes minimum */ | |
589 | cmd_len = COMMAND_SIZE(rq->cmd[0]); | |
590 | if (cmd_len < ATAPI_MIN_CDB_BYTES) | |
591 | cmd_len = ATAPI_MIN_CDB_BYTES; | |
592 | ||
5a3ea3b4 | 593 | /* send the command to the device */ |
374e042c | 594 | hwif->tp_ops->output_data(drive, NULL, rq->cmd, cmd_len); |
1da177e4 | 595 | |
5a3ea3b4 | 596 | /* start the DMA if need be */ |
1da177e4 | 597 | if (info->dma) |
5e37bdc0 | 598 | hwif->dma_ops->dma_start(drive); |
1da177e4 LT |
599 | |
600 | return ide_started; | |
601 | } | |
602 | ||
1da177e4 LT |
603 | /* |
604 | * Check the contents of the interrupt reason register from the cdrom | |
605 | * and attempt to recover if there are problems. Returns 0 if everything's | |
606 | * ok; nonzero if the request has been terminated. | |
607 | */ | |
9f10d9ee BZ |
608 | static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, |
609 | int len, int ireason, int rw) | |
1da177e4 | 610 | { |
b73c7ee2 BZ |
611 | ide_hwif_t *hwif = drive->hwif; |
612 | ||
0d6f7e3a BZ |
613 | /* |
614 | * ireason == 0: the drive wants to receive data from us | |
615 | * ireason == 2: the drive is expecting to transfer data to us | |
616 | */ | |
617 | if (ireason == (!rw << 1)) | |
1da177e4 | 618 | return 0; |
0d6f7e3a | 619 | else if (ireason == (rw << 1)) { |
5a5222d9 | 620 | |
5a3ea3b4 | 621 | /* whoops... */ |
35379c07 | 622 | printk(KERN_ERR "%s: %s: wrong transfer direction!\n", |
177773ed | 623 | drive->name, __func__); |
1da177e4 | 624 | |
ae8789f0 | 625 | ide_pad_transfer(drive, rw, len); |
0d6f7e3a | 626 | } else if (rw == 0 && ireason == 1) { |
5a3ea3b4 BP |
627 | /* |
628 | * Some drives (ASUS) seem to tell us that status info is | |
629 | * available. Just get it and ignore. | |
1da177e4 | 630 | */ |
374e042c | 631 | (void)hwif->tp_ops->read_status(hwif); |
1da177e4 LT |
632 | return 0; |
633 | } else { | |
5a3ea3b4 | 634 | /* drive wants a command packet, or invalid ireason... */ |
35379c07 | 635 | printk(KERN_ERR "%s: %s: bad interrupt reason 0x%02x\n", |
177773ed | 636 | drive->name, __func__, ireason); |
1da177e4 LT |
637 | } |
638 | ||
9f10d9ee BZ |
639 | if (rq->cmd_type == REQ_TYPE_ATA_PC) |
640 | rq->cmd_flags |= REQ_FAILED; | |
641 | ||
1da177e4 LT |
642 | cdrom_end_request(drive, 0); |
643 | return -1; | |
644 | } | |
645 | ||
64814f23 BZ |
646 | /* |
647 | * Assume that the drive will always provide data in multiples of at least | |
648 | * SECTOR_SIZE, as it gets hairy to keep track of the transfers otherwise. | |
649 | */ | |
650 | static int ide_cd_check_transfer_size(ide_drive_t *drive, int len) | |
651 | { | |
64814f23 BZ |
652 | if ((len % SECTOR_SIZE) == 0) |
653 | return 0; | |
654 | ||
655 | printk(KERN_ERR "%s: %s: Bad transfer size %d\n", | |
177773ed | 656 | drive->name, __func__, len); |
64814f23 | 657 | |
570f89ea | 658 | if (drive->atapi_flags & IDE_AFLAG_LIMIT_NFRAMES) |
64814f23 BZ |
659 | printk(KERN_ERR " This drive is not supported by " |
660 | "this version of the driver\n"); | |
661 | else { | |
662 | printk(KERN_ERR " Trying to limit transfer sizes\n"); | |
570f89ea | 663 | drive->atapi_flags |= IDE_AFLAG_LIMIT_NFRAMES; |
64814f23 BZ |
664 | } |
665 | ||
666 | return 1; | |
667 | } | |
668 | ||
0041e7c6 | 669 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *); |
94f5a86d | 670 | |
90eb808e BP |
671 | static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive, |
672 | struct request *rq) | |
1da177e4 | 673 | { |
29f3aaca BZ |
674 | if (rq_data_dir(rq) == READ) { |
675 | unsigned short sectors_per_frame = | |
676 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
677 | int nskip = rq->sector & (sectors_per_frame - 1); | |
1da177e4 | 678 | |
29f3aaca BZ |
679 | /* |
680 | * If the requested sector doesn't start on a frame boundary, | |
681 | * we must adjust the start of the transfer so that it does, | |
682 | * and remember to skip the first few sectors. | |
683 | * | |
684 | * If the rq->current_nr_sectors field is larger than the size | |
685 | * of the buffer, it will mean that we're to skip a number of | |
686 | * sectors equal to the amount by which rq->current_nr_sectors | |
687 | * is larger than the buffer size. | |
688 | */ | |
689 | if (nskip > 0) { | |
5a3ea3b4 | 690 | /* sanity check... */ |
29f3aaca BZ |
691 | if (rq->current_nr_sectors != |
692 | bio_cur_sectors(rq->bio)) { | |
693 | printk(KERN_ERR "%s: %s: buffer botch (%u)\n", | |
177773ed | 694 | drive->name, __func__, |
29f3aaca BZ |
695 | rq->current_nr_sectors); |
696 | cdrom_end_request(drive, 0); | |
697 | return ide_stopped; | |
698 | } | |
699 | rq->current_nr_sectors += nskip; | |
1da177e4 | 700 | } |
1da177e4 | 701 | } |
29f3aaca BZ |
702 | #if 0 |
703 | else | |
704 | /* the immediate bit */ | |
705 | rq->cmd[1] = 1 << 3; | |
706 | #endif | |
5a3ea3b4 | 707 | /* set up the command */ |
1da177e4 LT |
708 | rq->timeout = ATAPI_WAIT_PC; |
709 | ||
90eb808e BP |
710 | return ide_started; |
711 | } | |
712 | ||
713 | /* | |
714 | * Routine to send a read/write packet command to the drive. This is usually | |
715 | * called directly from cdrom_start_{read,write}(). However, for drq_interrupt | |
716 | * devices, it is called from an interrupt when the drive is ready to accept | |
717 | * the command. | |
718 | */ | |
719 | static ide_startstop_t cdrom_start_rw_cont(ide_drive_t *drive) | |
720 | { | |
721 | struct request *rq = drive->hwif->hwgroup->rq; | |
722 | ||
5a3ea3b4 | 723 | /* send the command to the drive and return */ |
0041e7c6 | 724 | return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr); |
1da177e4 LT |
725 | } |
726 | ||
1da177e4 LT |
727 | #define IDECD_SEEK_THRESHOLD (1000) /* 1000 blocks */ |
728 | #define IDECD_SEEK_TIMER (5 * WAIT_MIN_SLEEP) /* 100 ms */ | |
729 | #define IDECD_SEEK_TIMEOUT (2 * WAIT_CMD) /* 20 sec */ | |
730 | ||
9ce70fb2 | 731 | static ide_startstop_t cdrom_seek_intr(ide_drive_t *drive) |
1da177e4 LT |
732 | { |
733 | struct cdrom_info *info = drive->driver_data; | |
734 | int stat; | |
735 | static int retry = 10; | |
736 | ||
737 | if (cdrom_decode_status(drive, 0, &stat)) | |
738 | return ide_stopped; | |
4fe67178 | 739 | |
570f89ea | 740 | drive->atapi_flags |= IDE_AFLAG_SEEKING; |
1da177e4 LT |
741 | |
742 | if (retry && time_after(jiffies, info->start_seek + IDECD_SEEK_TIMER)) { | |
5a3ea3b4 | 743 | if (--retry == 0) |
1da177e4 | 744 | drive->dsc_overlap = 0; |
1da177e4 LT |
745 | } |
746 | return ide_stopped; | |
747 | } | |
748 | ||
e529c608 | 749 | static void ide_cd_prepare_seek_request(ide_drive_t *drive, struct request *rq) |
1da177e4 | 750 | { |
1da177e4 LT |
751 | sector_t frame = rq->sector; |
752 | ||
753 | sector_div(frame, queue_hardsect_size(drive->queue) >> SECTOR_BITS); | |
754 | ||
d34c87e4 | 755 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
756 | rq->cmd[0] = GPCMD_SEEK; |
757 | put_unaligned(cpu_to_be32(frame), (unsigned int *) &rq->cmd[2]); | |
758 | ||
759 | rq->timeout = ATAPI_WAIT_PC; | |
e529c608 BP |
760 | } |
761 | ||
762 | static ide_startstop_t cdrom_start_seek_continuation(ide_drive_t *drive) | |
763 | { | |
764 | struct request *rq = drive->hwif->hwgroup->rq; | |
765 | ||
1da177e4 LT |
766 | return cdrom_transfer_packet_command(drive, rq, &cdrom_seek_intr); |
767 | } | |
768 | ||
9ce70fb2 | 769 | /* |
5a3ea3b4 BP |
770 | * Fix up a possibly partially-processed request so that we can start it over |
771 | * entirely, or even put it back on the request queue. | |
9ce70fb2 PC |
772 | */ |
773 | static void restore_request(struct request *rq) | |
1da177e4 LT |
774 | { |
775 | if (rq->buffer != bio_data(rq->bio)) { | |
83c8565d BP |
776 | sector_t n = |
777 | (rq->buffer - (char *)bio_data(rq->bio)) / SECTOR_SIZE; | |
1da177e4 LT |
778 | |
779 | rq->buffer = bio_data(rq->bio); | |
780 | rq->nr_sectors += n; | |
781 | rq->sector -= n; | |
782 | } | |
83c8565d BP |
783 | rq->current_nr_sectors = bio_cur_sectors(rq->bio); |
784 | rq->hard_cur_sectors = rq->current_nr_sectors; | |
1da177e4 LT |
785 | rq->hard_nr_sectors = rq->nr_sectors; |
786 | rq->hard_sector = rq->sector; | |
787 | rq->q->prep_rq_fn(rq->q, rq); | |
788 | } | |
789 | ||
5a3ea3b4 BP |
790 | /* |
791 | * All other packet commands. | |
1da177e4 | 792 | */ |
8ee69f5a BZ |
793 | static void ide_cd_request_sense_fixup(struct request *rq) |
794 | { | |
795 | /* | |
796 | * Some of the trailing request sense fields are optional, | |
797 | * and some drives don't send them. Sigh. | |
798 | */ | |
799 | if (rq->cmd[0] == GPCMD_REQUEST_SENSE && | |
800 | rq->data_len > 0 && rq->data_len <= 5) | |
801 | while (rq->data_len > 0) { | |
802 | *(u8 *)rq->data++ = 0; | |
803 | --rq->data_len; | |
804 | } | |
805 | } | |
806 | ||
5f828546 FT |
807 | int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, |
808 | int write, void *buffer, unsigned *bufflen, | |
809 | struct request_sense *sense, int timeout, | |
810 | unsigned int cmd_flags) | |
1da177e4 | 811 | { |
5f828546 FT |
812 | struct cdrom_info *info = drive->driver_data; |
813 | struct request_sense local_sense; | |
1da177e4 | 814 | int retries = 10; |
5f828546 | 815 | unsigned int flags = 0; |
1da177e4 | 816 | |
5f828546 FT |
817 | if (!sense) |
818 | sense = &local_sense; | |
1da177e4 | 819 | |
5a3ea3b4 | 820 | /* start of retry loop */ |
1da177e4 | 821 | do { |
5f828546 | 822 | struct request *rq; |
1da177e4 | 823 | int error; |
1da177e4 | 824 | |
5f828546 FT |
825 | rq = blk_get_request(drive->queue, write, __GFP_WAIT); |
826 | ||
827 | memcpy(rq->cmd, cmd, BLK_MAX_CDB); | |
828 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
829 | rq->sense = sense; | |
830 | rq->cmd_flags |= cmd_flags; | |
831 | rq->timeout = timeout; | |
832 | if (buffer) { | |
833 | rq->data = buffer; | |
834 | rq->data_len = *bufflen; | |
835 | } | |
836 | ||
837 | error = blk_execute_rq(drive->queue, info->disk, rq, 0); | |
838 | ||
839 | if (buffer) | |
840 | *bufflen = rq->data_len; | |
841 | ||
842 | flags = rq->cmd_flags; | |
843 | blk_put_request(rq); | |
1da177e4 | 844 | |
5a3ea3b4 BP |
845 | /* |
846 | * FIXME: we should probably abort/retry or something in case of | |
847 | * failure. | |
848 | */ | |
5f828546 | 849 | if (flags & REQ_FAILED) { |
5a3ea3b4 BP |
850 | /* |
851 | * The request failed. Retry if it was due to a unit | |
852 | * attention status (usually means media was changed). | |
853 | */ | |
5f828546 | 854 | struct request_sense *reqbuf = sense; |
1da177e4 LT |
855 | |
856 | if (reqbuf->sense_key == UNIT_ATTENTION) | |
857 | cdrom_saw_media_change(drive); | |
858 | else if (reqbuf->sense_key == NOT_READY && | |
859 | reqbuf->asc == 4 && reqbuf->ascq != 4) { | |
5a3ea3b4 BP |
860 | /* |
861 | * The drive is in the process of loading | |
862 | * a disk. Retry, but wait a little to give | |
863 | * the drive time to complete the load. | |
864 | */ | |
1da177e4 LT |
865 | ssleep(2); |
866 | } else { | |
5a3ea3b4 | 867 | /* otherwise, don't retry */ |
1da177e4 LT |
868 | retries = 0; |
869 | } | |
870 | --retries; | |
871 | } | |
872 | ||
5a3ea3b4 | 873 | /* end of retry loop */ |
5f828546 | 874 | } while ((flags & REQ_FAILED) && retries >= 0); |
1da177e4 | 875 | |
5a3ea3b4 | 876 | /* return an error if the command failed */ |
5f828546 | 877 | return (flags & REQ_FAILED) ? -EIO : 0; |
1da177e4 LT |
878 | } |
879 | ||
aaa04c28 | 880 | /* |
5a3ea3b4 BP |
881 | * Called from blk_end_request_callback() after the data of the request is |
882 | * completed and before the request itself is completed. By returning value '1', | |
883 | * blk_end_request_callback() returns immediately without completing it. | |
aaa04c28 KU |
884 | */ |
885 | static int cdrom_newpc_intr_dummy_cb(struct request *rq) | |
886 | { | |
887 | return 1; | |
888 | } | |
889 | ||
1da177e4 LT |
890 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) |
891 | { | |
23579a2a | 892 | ide_hwif_t *hwif = drive->hwif; |
1da177e4 LT |
893 | struct cdrom_info *info = drive->driver_data; |
894 | struct request *rq = HWGROUP(drive)->rq; | |
1da177e4 | 895 | xfer_func_t *xferfunc; |
0041e7c6 | 896 | ide_expiry_t *expiry = NULL; |
1823649b | 897 | int dma_error = 0, dma, stat, thislen, uptodate = 0; |
ff1bfbc1 BZ |
898 | int write = (rq_data_dir(rq) == WRITE) ? 1 : 0; |
899 | unsigned int timeout; | |
1823649b BZ |
900 | u16 len; |
901 | u8 ireason; | |
1da177e4 | 902 | |
5a3ea3b4 | 903 | /* check for errors */ |
1da177e4 LT |
904 | dma = info->dma; |
905 | if (dma) { | |
906 | info->dma = 0; | |
5e37bdc0 | 907 | dma_error = hwif->dma_ops->dma_end(drive); |
eba15fba BZ |
908 | if (dma_error) { |
909 | printk(KERN_ERR "%s: DMA %s error\n", drive->name, | |
ff1bfbc1 | 910 | write ? "write" : "read"); |
eba15fba BZ |
911 | ide_dma_off(drive); |
912 | } | |
1da177e4 LT |
913 | } |
914 | ||
915 | if (cdrom_decode_status(drive, 0, &stat)) | |
916 | return ide_stopped; | |
917 | ||
5a3ea3b4 | 918 | /* using dma, transfer is complete now */ |
1da177e4 | 919 | if (dma) { |
eba15fba | 920 | if (dma_error) |
1da177e4 | 921 | return ide_error(drive, "dma error", stat); |
0041e7c6 BZ |
922 | if (blk_fs_request(rq)) { |
923 | ide_end_request(drive, 1, rq->nr_sectors); | |
924 | return ide_stopped; | |
925 | } | |
ff1bfbc1 | 926 | goto end_request; |
1da177e4 LT |
927 | } |
928 | ||
1823649b | 929 | ide_read_bcount_and_ireason(drive, &len, &ireason); |
0041e7c6 BZ |
930 | |
931 | thislen = blk_fs_request(rq) ? len : rq->data_len; | |
1da177e4 LT |
932 | if (thislen > len) |
933 | thislen = len; | |
934 | ||
5a3ea3b4 | 935 | /* If DRQ is clear, the command has completed. */ |
3a7d2484 | 936 | if ((stat & ATA_DRQ) == 0) { |
0041e7c6 BZ |
937 | if (blk_fs_request(rq)) { |
938 | /* | |
939 | * If we're not done reading/writing, complain. | |
940 | * Otherwise, complete the command normally. | |
941 | */ | |
942 | uptodate = 1; | |
943 | if (rq->current_nr_sectors > 0) { | |
944 | printk(KERN_ERR "%s: %s: data underrun " | |
945 | "(%d blocks)\n", | |
177773ed | 946 | drive->name, __func__, |
0041e7c6 BZ |
947 | rq->current_nr_sectors); |
948 | if (!write) | |
949 | rq->cmd_flags |= REQ_FAILED; | |
950 | uptodate = 0; | |
951 | } | |
952 | cdrom_end_request(drive, uptodate); | |
953 | return ide_stopped; | |
954 | } else if (!blk_pc_request(rq)) { | |
ff1bfbc1 | 955 | ide_cd_request_sense_fixup(rq); |
5a3ea3b4 | 956 | /* complain if we still have data left to transfer */ |
ff1bfbc1 BZ |
957 | uptodate = rq->data_len ? 0 : 1; |
958 | } | |
959 | goto end_request; | |
aaa04c28 | 960 | } |
1da177e4 | 961 | |
5a3ea3b4 | 962 | /* check which way to transfer data */ |
9f10d9ee BZ |
963 | if (ide_cd_check_ireason(drive, rq, len, ireason, write)) |
964 | return ide_stopped; | |
0041e7c6 | 965 | |
9f10d9ee BZ |
966 | if (blk_fs_request(rq)) { |
967 | if (write == 0) { | |
0041e7c6 BZ |
968 | int nskip; |
969 | ||
970 | if (ide_cd_check_transfer_size(drive, len)) { | |
971 | cdrom_end_request(drive, 0); | |
972 | return ide_stopped; | |
973 | } | |
974 | ||
975 | /* | |
976 | * First, figure out if we need to bit-bucket | |
977 | * any of the leading sectors. | |
978 | */ | |
979 | nskip = min_t(int, rq->current_nr_sectors | |
980 | - bio_cur_sectors(rq->bio), | |
981 | thislen >> 9); | |
982 | if (nskip > 0) { | |
ae8789f0 | 983 | ide_pad_transfer(drive, write, nskip << 9); |
0041e7c6 BZ |
984 | rq->current_nr_sectors -= nskip; |
985 | thislen -= (nskip << 9); | |
986 | } | |
987 | } | |
ff1bfbc1 | 988 | } |
1da177e4 | 989 | |
ff1bfbc1 BZ |
990 | if (ireason == 0) { |
991 | write = 1; | |
374e042c | 992 | xferfunc = hwif->tp_ops->output_data; |
9f10d9ee | 993 | } else { |
ff1bfbc1 | 994 | write = 0; |
374e042c | 995 | xferfunc = hwif->tp_ops->input_data; |
1da177e4 LT |
996 | } |
997 | ||
5a3ea3b4 | 998 | /* transfer data */ |
1da177e4 | 999 | while (thislen > 0) { |
0041e7c6 | 1000 | u8 *ptr = blk_fs_request(rq) ? NULL : rq->data; |
a11e77db | 1001 | int blen = rq->data_len; |
1da177e4 | 1002 | |
5a3ea3b4 | 1003 | /* bio backed? */ |
1da177e4 | 1004 | if (rq->bio) { |
0041e7c6 BZ |
1005 | if (blk_fs_request(rq)) { |
1006 | ptr = rq->buffer; | |
1007 | blen = rq->current_nr_sectors << 9; | |
1008 | } else { | |
1009 | ptr = bio_data(rq->bio); | |
1010 | blen = bio_iovec(rq->bio)->bv_len; | |
1011 | } | |
1da177e4 LT |
1012 | } |
1013 | ||
1014 | if (!ptr) { | |
0041e7c6 BZ |
1015 | if (blk_fs_request(rq) && !write) |
1016 | /* | |
968c4964 | 1017 | * If the buffers are full, pipe the rest into |
5a3ea3b4 BP |
1018 | * oblivion. |
1019 | */ | |
ae8789f0 | 1020 | ide_pad_transfer(drive, 0, thislen); |
0041e7c6 BZ |
1021 | else { |
1022 | printk(KERN_ERR "%s: confused, missing data\n", | |
1023 | drive->name); | |
1024 | blk_dump_rq_flags(rq, rq_data_dir(rq) | |
1025 | ? "cdrom_newpc_intr, write" | |
1026 | : "cdrom_newpc_intr, read"); | |
1027 | } | |
1da177e4 LT |
1028 | break; |
1029 | } | |
1030 | ||
1031 | if (blen > thislen) | |
1032 | blen = thislen; | |
1033 | ||
9567b349 | 1034 | xferfunc(drive, NULL, ptr, blen); |
1da177e4 LT |
1035 | |
1036 | thislen -= blen; | |
1037 | len -= blen; | |
1da177e4 | 1038 | |
0041e7c6 BZ |
1039 | if (blk_fs_request(rq)) { |
1040 | rq->buffer += blen; | |
1041 | rq->nr_sectors -= (blen >> 9); | |
1042 | rq->current_nr_sectors -= (blen >> 9); | |
1043 | rq->sector += (blen >> 9); | |
1044 | ||
1045 | if (rq->current_nr_sectors == 0 && rq->nr_sectors) | |
1046 | cdrom_end_request(drive, 1); | |
1047 | } else { | |
1048 | rq->data_len -= blen; | |
1049 | ||
aaa04c28 KU |
1050 | /* |
1051 | * The request can't be completed until DRQ is cleared. | |
1052 | * So complete the data, but don't complete the request | |
1053 | * using the dummy function for the callback feature | |
1054 | * of blk_end_request_callback(). | |
1055 | */ | |
0041e7c6 BZ |
1056 | if (rq->bio) |
1057 | blk_end_request_callback(rq, 0, blen, | |
aaa04c28 | 1058 | cdrom_newpc_intr_dummy_cb); |
0041e7c6 BZ |
1059 | else |
1060 | rq->data += blen; | |
1061 | } | |
bcd88ac3 AS |
1062 | if (!write && blk_sense_request(rq)) |
1063 | rq->sense_len += blen; | |
1da177e4 LT |
1064 | } |
1065 | ||
5a3ea3b4 | 1066 | /* pad, if necessary */ |
0041e7c6 | 1067 | if (!blk_fs_request(rq) && len > 0) |
ae8789f0 | 1068 | ide_pad_transfer(drive, write, len); |
1da177e4 | 1069 | |
ff1bfbc1 BZ |
1070 | if (blk_pc_request(rq)) { |
1071 | timeout = rq->timeout; | |
ff1bfbc1 BZ |
1072 | } else { |
1073 | timeout = ATAPI_WAIT_PC; | |
0041e7c6 BZ |
1074 | if (!blk_fs_request(rq)) |
1075 | expiry = cdrom_timer_expiry; | |
ff1bfbc1 BZ |
1076 | } |
1077 | ||
1078 | ide_set_handler(drive, cdrom_newpc_intr, timeout, expiry); | |
1da177e4 | 1079 | return ide_started; |
ff1bfbc1 BZ |
1080 | |
1081 | end_request: | |
1082 | if (blk_pc_request(rq)) { | |
1083 | unsigned long flags; | |
14e04c3f KU |
1084 | unsigned int dlen = rq->data_len; |
1085 | ||
1086 | if (dma) | |
1087 | rq->data_len = 0; | |
ff1bfbc1 BZ |
1088 | |
1089 | spin_lock_irqsave(&ide_lock, flags); | |
14e04c3f | 1090 | if (__blk_end_request(rq, 0, dlen)) |
ff1bfbc1 BZ |
1091 | BUG(); |
1092 | HWGROUP(drive)->rq = NULL; | |
1093 | spin_unlock_irqrestore(&ide_lock, flags); | |
1094 | } else { | |
1095 | if (!uptodate) | |
1096 | rq->cmd_flags |= REQ_FAILED; | |
1097 | cdrom_end_request(drive, uptodate); | |
1098 | } | |
1099 | return ide_stopped; | |
1da177e4 LT |
1100 | } |
1101 | ||
21ea1f0f | 1102 | static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) |
1da177e4 | 1103 | { |
21ea1f0f BZ |
1104 | struct cdrom_info *cd = drive->driver_data; |
1105 | int write = rq_data_dir(rq) == WRITE; | |
1106 | unsigned short sectors_per_frame = | |
1107 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
1da177e4 | 1108 | |
21ea1f0f | 1109 | if (write) { |
5a3ea3b4 | 1110 | /* disk has become write protected */ |
b7db9956 | 1111 | if (get_disk_ro(cd->disk)) { |
21ea1f0f BZ |
1112 | cdrom_end_request(drive, 0); |
1113 | return ide_stopped; | |
1114 | } | |
1115 | } else { | |
1116 | /* | |
1117 | * We may be retrying this request after an error. Fix up any | |
1118 | * weirdness which might be present in the request packet. | |
1119 | */ | |
1120 | restore_request(rq); | |
1da177e4 LT |
1121 | } |
1122 | ||
5a3ea3b4 | 1123 | /* use DMA, if possible / writes *must* be hardware frame aligned */ |
21ea1f0f BZ |
1124 | if ((rq->nr_sectors & (sectors_per_frame - 1)) || |
1125 | (rq->sector & (sectors_per_frame - 1))) { | |
1126 | if (write) { | |
1127 | cdrom_end_request(drive, 0); | |
1128 | return ide_stopped; | |
1129 | } | |
1130 | cd->dma = 0; | |
1131 | } else | |
1132 | cd->dma = drive->using_dma; | |
1da177e4 | 1133 | |
21ea1f0f BZ |
1134 | if (write) |
1135 | cd->devinfo.media_written = 1; | |
1da177e4 | 1136 | |
b6ca440a | 1137 | return ide_started; |
1da177e4 LT |
1138 | } |
1139 | ||
1140 | static ide_startstop_t cdrom_do_newpc_cont(ide_drive_t *drive) | |
1141 | { | |
1142 | struct request *rq = HWGROUP(drive)->rq; | |
1143 | ||
1da177e4 LT |
1144 | return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr); |
1145 | } | |
1146 | ||
b6ca440a | 1147 | static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) |
1da177e4 LT |
1148 | { |
1149 | struct cdrom_info *info = drive->driver_data; | |
1150 | ||
c9f56a80 BZ |
1151 | if (blk_pc_request(rq)) |
1152 | rq->cmd_flags |= REQ_QUIET; | |
1153 | else | |
1154 | rq->cmd_flags &= ~REQ_FAILED; | |
1da177e4 LT |
1155 | |
1156 | info->dma = 0; | |
1da177e4 | 1157 | |
5a3ea3b4 | 1158 | /* sg request */ |
e5318b53 FT |
1159 | if (rq->bio || ((rq->cmd_type == REQ_TYPE_ATA_PC) && rq->data_len)) { |
1160 | struct request_queue *q = drive->queue; | |
1161 | unsigned int alignment; | |
efa402d5 | 1162 | char *buf; |
1da177e4 | 1163 | |
e5318b53 | 1164 | if (rq->bio) |
efa402d5 | 1165 | buf = bio_data(rq->bio); |
e5318b53 | 1166 | else |
efa402d5 | 1167 | buf = rq->data; |
e5318b53 | 1168 | |
1da177e4 LT |
1169 | info->dma = drive->using_dma; |
1170 | ||
1171 | /* | |
1172 | * check if dma is safe | |
5d9e4ea5 LT |
1173 | * |
1174 | * NOTE! The "len" and "addr" checks should possibly have | |
1175 | * separate masks. | |
1da177e4 | 1176 | */ |
e5318b53 | 1177 | alignment = queue_dma_alignment(q) | q->dma_pad_mask; |
efa402d5 FT |
1178 | if ((unsigned long)buf & alignment || rq->data_len & alignment |
1179 | || object_is_on_stack(buf)) | |
0b6abc17 | 1180 | info->dma = 0; |
1da177e4 | 1181 | } |
1da177e4 LT |
1182 | } |
1183 | ||
5a3ea3b4 | 1184 | /* |
1da177e4 LT |
1185 | * cdrom driver request routine. |
1186 | */ | |
99384aea | 1187 | static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, |
e5e076a3 | 1188 | sector_t block) |
1da177e4 | 1189 | { |
1da177e4 | 1190 | struct cdrom_info *info = drive->driver_data; |
b6ca440a BP |
1191 | ide_handler_t *fn; |
1192 | int xferlen; | |
1da177e4 LT |
1193 | |
1194 | if (blk_fs_request(rq)) { | |
570f89ea | 1195 | if (drive->atapi_flags & IDE_AFLAG_SEEKING) { |
b73c7ee2 | 1196 | ide_hwif_t *hwif = drive->hwif; |
1da177e4 | 1197 | unsigned long elapsed = jiffies - info->start_seek; |
374e042c | 1198 | int stat = hwif->tp_ops->read_status(hwif); |
1da177e4 | 1199 | |
3a7d2484 | 1200 | if ((stat & ATA_DSC) != ATA_DSC) { |
1da177e4 | 1201 | if (elapsed < IDECD_SEEK_TIMEOUT) { |
83c8565d BP |
1202 | ide_stall_queue(drive, |
1203 | IDECD_SEEK_TIMER); | |
1da177e4 LT |
1204 | return ide_stopped; |
1205 | } | |
83c8565d BP |
1206 | printk(KERN_ERR "%s: DSC timeout\n", |
1207 | drive->name); | |
1da177e4 | 1208 | } |
570f89ea | 1209 | drive->atapi_flags &= ~IDE_AFLAG_SEEKING; |
1da177e4 | 1210 | } |
83c8565d BP |
1211 | if (rq_data_dir(rq) == READ && |
1212 | IDE_LARGE_SEEK(info->last_block, block, | |
b6ca440a BP |
1213 | IDECD_SEEK_THRESHOLD) && |
1214 | drive->dsc_overlap) { | |
1215 | xferlen = 0; | |
1216 | fn = cdrom_start_seek_continuation; | |
e529c608 | 1217 | |
4b01fcbb BP |
1218 | info->dma = 0; |
1219 | info->start_seek = jiffies; | |
e529c608 BP |
1220 | |
1221 | ide_cd_prepare_seek_request(drive, rq); | |
b6ca440a BP |
1222 | } else { |
1223 | xferlen = 32768; | |
1224 | fn = cdrom_start_rw_cont; | |
90eb808e | 1225 | |
b6ca440a BP |
1226 | if (cdrom_start_rw(drive, rq) == ide_stopped) |
1227 | return ide_stopped; | |
90eb808e BP |
1228 | |
1229 | if (ide_cd_prepare_rw_request(drive, rq) == ide_stopped) | |
1230 | return ide_stopped; | |
b6ca440a | 1231 | } |
1da177e4 | 1232 | info->last_block = block; |
c9f56a80 | 1233 | } else if (blk_sense_request(rq) || blk_pc_request(rq) || |
cea2885a | 1234 | rq->cmd_type == REQ_TYPE_ATA_PC) { |
b6ca440a BP |
1235 | xferlen = rq->data_len; |
1236 | fn = cdrom_do_newpc_cont; | |
7fcebda5 BP |
1237 | |
1238 | if (!rq->timeout) | |
1239 | rq->timeout = ATAPI_WAIT_PC; | |
1240 | ||
b6ca440a | 1241 | cdrom_do_block_pc(drive, rq); |
4aff5e23 | 1242 | } else if (blk_special_request(rq)) { |
5a3ea3b4 | 1243 | /* right now this can only be a reset... */ |
1da177e4 LT |
1244 | cdrom_end_request(drive, 1); |
1245 | return ide_stopped; | |
ab9d6e33 BP |
1246 | } else { |
1247 | blk_dump_rq_flags(rq, "ide-cd bad flags"); | |
1248 | cdrom_end_request(drive, 0); | |
1249 | return ide_stopped; | |
1da177e4 | 1250 | } |
b6ca440a BP |
1251 | |
1252 | return cdrom_start_packet_command(drive, xferlen, fn); | |
1da177e4 LT |
1253 | } |
1254 | ||
5a3ea3b4 | 1255 | /* |
1da177e4 LT |
1256 | * Ioctl handling. |
1257 | * | |
5a3ea3b4 BP |
1258 | * Routines which queue packet commands take as a final argument a pointer to a |
1259 | * request_sense struct. If execution of the command results in an error with a | |
1260 | * CHECK CONDITION status, this structure will be filled with the results of the | |
1261 | * subsequent request sense command. The pointer can also be NULL, in which case | |
1262 | * no sense information is returned. | |
1da177e4 | 1263 | */ |
e5e076a3 | 1264 | static void msf_from_bcd(struct atapi_msf *msf) |
1da177e4 | 1265 | { |
fc99856a AB |
1266 | msf->minute = bcd2bin(msf->minute); |
1267 | msf->second = bcd2bin(msf->second); | |
1268 | msf->frame = bcd2bin(msf->frame); | |
1da177e4 LT |
1269 | } |
1270 | ||
f9afd18b | 1271 | int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 | 1272 | { |
1da177e4 LT |
1273 | struct cdrom_info *info = drive->driver_data; |
1274 | struct cdrom_device_info *cdi = &info->devinfo; | |
5f828546 | 1275 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1276 | |
5f828546 FT |
1277 | memset(cmd, 0, BLK_MAX_CDB); |
1278 | cmd[0] = GPCMD_TEST_UNIT_READY; | |
1da177e4 | 1279 | |
cdf6000d | 1280 | /* |
5a3ea3b4 BP |
1281 | * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs |
1282 | * instead of supporting the LOAD_UNLOAD opcode. | |
cdf6000d | 1283 | */ |
5f828546 | 1284 | cmd[7] = cdi->sanyo_slot % 3; |
1da177e4 | 1285 | |
141d3b27 | 1286 | return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET); |
1da177e4 LT |
1287 | } |
1288 | ||
1da177e4 LT |
1289 | static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, |
1290 | unsigned long *sectors_per_frame, | |
1291 | struct request_sense *sense) | |
1292 | { | |
1293 | struct { | |
141d3b27 HH |
1294 | __be32 lba; |
1295 | __be32 blocklen; | |
1da177e4 LT |
1296 | } capbuf; |
1297 | ||
1298 | int stat; | |
5f828546 FT |
1299 | unsigned char cmd[BLK_MAX_CDB]; |
1300 | unsigned len = sizeof(capbuf); | |
938bb03d | 1301 | u32 blocklen; |
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); | |
e8e7b9eb JA |
1308 | if (stat) |
1309 | return stat; | |
1310 | ||
1311 | /* | |
1312 | * Sanity check the given block size | |
1313 | */ | |
938bb03d PT |
1314 | blocklen = be32_to_cpu(capbuf.blocklen); |
1315 | switch (blocklen) { | |
1316 | case 512: | |
1317 | case 1024: | |
1318 | case 2048: | |
1319 | case 4096: | |
e8e7b9eb JA |
1320 | break; |
1321 | default: | |
1322 | printk(KERN_ERR "%s: weird block size %u\n", | |
938bb03d | 1323 | drive->name, blocklen); |
e8e7b9eb JA |
1324 | printk(KERN_ERR "%s: default to 2kb block size\n", |
1325 | drive->name); | |
938bb03d | 1326 | blocklen = 2048; |
e8e7b9eb | 1327 | break; |
1da177e4 LT |
1328 | } |
1329 | ||
e8e7b9eb | 1330 | *capacity = 1 + be32_to_cpu(capbuf.lba); |
938bb03d | 1331 | *sectors_per_frame = blocklen >> SECTOR_BITS; |
e8e7b9eb | 1332 | return 0; |
1da177e4 LT |
1333 | } |
1334 | ||
1335 | static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, | |
1336 | int format, char *buf, int buflen, | |
1337 | struct request_sense *sense) | |
1338 | { | |
5f828546 | 1339 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1340 | |
5f828546 | 1341 | memset(cmd, 0, BLK_MAX_CDB); |
1da177e4 | 1342 | |
5f828546 FT |
1343 | cmd[0] = GPCMD_READ_TOC_PMA_ATIP; |
1344 | cmd[6] = trackno; | |
1345 | cmd[7] = (buflen >> 8); | |
1346 | cmd[8] = (buflen & 0xff); | |
1347 | cmd[9] = (format << 6); | |
1da177e4 LT |
1348 | |
1349 | if (msf_flag) | |
5f828546 | 1350 | cmd[1] = 2; |
1da177e4 | 1351 | |
5f828546 | 1352 | return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); |
1da177e4 LT |
1353 | } |
1354 | ||
1da177e4 | 1355 | /* Try to read the entire TOC for the disk into our internal buffer. */ |
17802998 | 1356 | int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 LT |
1357 | { |
1358 | int stat, ntracks, i; | |
1359 | struct cdrom_info *info = drive->driver_data; | |
1360 | struct cdrom_device_info *cdi = &info->devinfo; | |
1361 | struct atapi_toc *toc = info->toc; | |
1362 | struct { | |
1363 | struct atapi_toc_header hdr; | |
1364 | struct atapi_toc_entry ent; | |
1365 | } ms_tmp; | |
1366 | long last_written; | |
1367 | unsigned long sectors_per_frame = SECTORS_PER_FRAME; | |
1368 | ||
1369 | if (toc == NULL) { | |
5a3ea3b4 | 1370 | /* try to allocate space */ |
2a91f3e5 | 1371 | toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); |
1da177e4 | 1372 | if (toc == NULL) { |
83c8565d BP |
1373 | printk(KERN_ERR "%s: No cdrom TOC buffer!\n", |
1374 | drive->name); | |
1da177e4 LT |
1375 | return -ENOMEM; |
1376 | } | |
2a91f3e5 | 1377 | info->toc = toc; |
1da177e4 LT |
1378 | } |
1379 | ||
5a3ea3b4 BP |
1380 | /* |
1381 | * Check to see if the existing data is still valid. If it is, | |
1382 | * just return. | |
1383 | */ | |
1da177e4 LT |
1384 | (void) cdrom_check_status(drive, sense); |
1385 | ||
570f89ea | 1386 | if (drive->atapi_flags & IDE_AFLAG_TOC_VALID) |
1da177e4 LT |
1387 | return 0; |
1388 | ||
5a3ea3b4 | 1389 | /* try to get the total cdrom capacity and sector size */ |
1da177e4 LT |
1390 | stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame, |
1391 | sense); | |
1392 | if (stat) | |
1393 | toc->capacity = 0x1fffff; | |
1394 | ||
1395 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
5a3ea3b4 | 1396 | /* save a private copy of the TOC capacity for error handling */ |
dbe217af AC |
1397 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1398 | ||
1da177e4 LT |
1399 | blk_queue_hardsect_size(drive->queue, |
1400 | sectors_per_frame << SECTOR_BITS); | |
1401 | ||
5a3ea3b4 | 1402 | /* first read just the header, so we know how long the TOC is */ |
1da177e4 LT |
1403 | stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, |
1404 | sizeof(struct atapi_toc_header), sense); | |
2a91f3e5 JJ |
1405 | if (stat) |
1406 | return stat; | |
1da177e4 | 1407 | |
570f89ea | 1408 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1409 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1410 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1411 | } |
1da177e4 LT |
1412 | |
1413 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; | |
1414 | if (ntracks <= 0) | |
1415 | return -EIO; | |
1416 | if (ntracks > MAX_TRACKS) | |
1417 | ntracks = MAX_TRACKS; | |
1418 | ||
5a3ea3b4 | 1419 | /* now read the whole schmeer */ |
1da177e4 LT |
1420 | stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, |
1421 | (char *)&toc->hdr, | |
1422 | sizeof(struct atapi_toc_header) + | |
1423 | (ntracks + 1) * | |
1424 | sizeof(struct atapi_toc_entry), sense); | |
1425 | ||
1426 | if (stat && toc->hdr.first_track > 1) { | |
5a3ea3b4 BP |
1427 | /* |
1428 | * Cds with CDI tracks only don't have any TOC entries, despite | |
1429 | * of this the returned values are | |
1430 | * first_track == last_track = number of CDI tracks + 1, | |
1431 | * so that this case is indistinguishable from the same layout | |
1432 | * plus an additional audio track. If we get an error for the | |
1433 | * regular case, we assume a CDI without additional audio | |
1434 | * tracks. In this case the readable TOC is empty (CDI tracks | |
1435 | * are not included) and only holds the Leadout entry. | |
1436 | * | |
1437 | * Heiko Eißfeldt. | |
1438 | */ | |
1da177e4 LT |
1439 | ntracks = 0; |
1440 | stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, | |
1441 | (char *)&toc->hdr, | |
1442 | sizeof(struct atapi_toc_header) + | |
1443 | (ntracks + 1) * | |
1444 | sizeof(struct atapi_toc_entry), | |
1445 | sense); | |
cdf6000d | 1446 | if (stat) |
1da177e4 | 1447 | return stat; |
cdf6000d | 1448 | |
570f89ea | 1449 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1450 | toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT); |
1451 | toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT); | |
cdf6000d | 1452 | } else { |
1da177e4 LT |
1453 | toc->hdr.first_track = CDROM_LEADOUT; |
1454 | toc->hdr.last_track = CDROM_LEADOUT; | |
1455 | } | |
1456 | } | |
1457 | ||
1458 | if (stat) | |
1459 | return stat; | |
1460 | ||
7eb43fd2 | 1461 | toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); |
1da177e4 | 1462 | |
570f89ea | 1463 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1464 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1465 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1466 | } |
1da177e4 | 1467 | |
cdf6000d | 1468 | for (i = 0; i <= ntracks; i++) { |
570f89ea BP |
1469 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
1470 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) | |
fc99856a | 1471 | toc->ent[i].track = bcd2bin(toc->ent[i].track); |
1da177e4 LT |
1472 | msf_from_bcd(&toc->ent[i].addr.msf); |
1473 | } | |
9ce70fb2 PC |
1474 | toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, |
1475 | toc->ent[i].addr.msf.second, | |
1476 | toc->ent[i].addr.msf.frame); | |
1da177e4 LT |
1477 | } |
1478 | ||
1da177e4 | 1479 | if (toc->hdr.first_track != CDROM_LEADOUT) { |
5a3ea3b4 | 1480 | /* read the multisession information */ |
1da177e4 LT |
1481 | stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, |
1482 | sizeof(ms_tmp), sense); | |
2a91f3e5 JJ |
1483 | if (stat) |
1484 | return stat; | |
1da177e4 LT |
1485 | |
1486 | toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); | |
1487 | } else { | |
e5e076a3 BP |
1488 | ms_tmp.hdr.last_track = CDROM_LEADOUT; |
1489 | ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; | |
1da177e4 LT |
1490 | toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ |
1491 | } | |
1492 | ||
570f89ea | 1493 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
5a3ea3b4 | 1494 | /* re-read multisession information using MSF format */ |
1da177e4 LT |
1495 | stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, |
1496 | sizeof(ms_tmp), sense); | |
1497 | if (stat) | |
1498 | return stat; | |
1499 | ||
9ce70fb2 | 1500 | msf_from_bcd(&ms_tmp.ent.addr.msf); |
1da177e4 | 1501 | toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, |
9ce70fb2 | 1502 | ms_tmp.ent.addr.msf.second, |
1da177e4 LT |
1503 | ms_tmp.ent.addr.msf.frame); |
1504 | } | |
1da177e4 LT |
1505 | |
1506 | toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); | |
1507 | ||
5a3ea3b4 | 1508 | /* now try to get the total cdrom capacity */ |
1da177e4 LT |
1509 | stat = cdrom_get_last_written(cdi, &last_written); |
1510 | if (!stat && (last_written > toc->capacity)) { | |
1511 | toc->capacity = last_written; | |
1512 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
dbe217af | 1513 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1da177e4 LT |
1514 | } |
1515 | ||
1516 | /* Remember that we've read this stuff. */ | |
570f89ea | 1517 | drive->atapi_flags |= IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
1518 | |
1519 | return 0; | |
1520 | } | |
1521 | ||
17802998 | 1522 | int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) |
9235e68b EP |
1523 | { |
1524 | struct cdrom_info *info = drive->driver_data; | |
1525 | struct cdrom_device_info *cdi = &info->devinfo; | |
1526 | struct packet_command cgc; | |
455d80a9 | 1527 | int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; |
9235e68b | 1528 | |
570f89ea | 1529 | if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0) |
455d80a9 | 1530 | size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; |
9235e68b | 1531 | |
455d80a9 | 1532 | init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); |
5a3ea3b4 BP |
1533 | do { |
1534 | /* we seem to get stat=0x01,err=0x00 the first time (??) */ | |
9235e68b EP |
1535 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); |
1536 | if (!stat) | |
1537 | break; | |
1538 | } while (--attempts); | |
1539 | return stat; | |
1540 | } | |
1541 | ||
17802998 | 1542 | void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) |
9235e68b | 1543 | { |
4fe67178 | 1544 | struct cdrom_info *cd = drive->driver_data; |
481c8c64 BZ |
1545 | u16 curspeed, maxspeed; |
1546 | ||
570f89ea | 1547 | if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) { |
141d3b27 HH |
1548 | curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]); |
1549 | maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]); | |
9235e68b | 1550 | } else { |
141d3b27 HH |
1551 | curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]); |
1552 | maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]); | |
9235e68b | 1553 | } |
481c8c64 | 1554 | |
2bc4cf2d BZ |
1555 | cd->current_speed = (curspeed + (176/2)) / 176; |
1556 | cd->max_speed = (maxspeed + (176/2)) / 176; | |
9235e68b EP |
1557 | } |
1558 | ||
20e7f7ef BZ |
1559 | #define IDE_CD_CAPABILITIES \ |
1560 | (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ | |
1561 | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ | |
1562 | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ | |
1563 | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ | |
1564 | CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) | |
1da177e4 | 1565 | |
1da177e4 LT |
1566 | static struct cdrom_device_ops ide_cdrom_dops = { |
1567 | .open = ide_cdrom_open_real, | |
1568 | .release = ide_cdrom_release_real, | |
1569 | .drive_status = ide_cdrom_drive_status, | |
1570 | .media_changed = ide_cdrom_check_media_change_real, | |
1571 | .tray_move = ide_cdrom_tray_move, | |
1572 | .lock_door = ide_cdrom_lock_door, | |
1573 | .select_speed = ide_cdrom_select_speed, | |
1574 | .get_last_session = ide_cdrom_get_last_session, | |
1575 | .get_mcn = ide_cdrom_get_mcn, | |
1576 | .reset = ide_cdrom_reset, | |
1577 | .audio_ioctl = ide_cdrom_audio_ioctl, | |
20e7f7ef | 1578 | .capability = IDE_CD_CAPABILITIES, |
1da177e4 LT |
1579 | .generic_packet = ide_cdrom_packet, |
1580 | }; | |
1581 | ||
9ce70fb2 | 1582 | static int ide_cdrom_register(ide_drive_t *drive, int nslots) |
1da177e4 LT |
1583 | { |
1584 | struct cdrom_info *info = drive->driver_data; | |
1585 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1586 | ||
1587 | devinfo->ops = &ide_cdrom_dops; | |
2bc4cf2d | 1588 | devinfo->speed = info->current_speed; |
1da177e4 | 1589 | devinfo->capacity = nslots; |
2a91f3e5 | 1590 | devinfo->handle = drive; |
1da177e4 | 1591 | strcpy(devinfo->name, drive->name); |
1da177e4 | 1592 | |
570f89ea | 1593 | if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT) |
3cbd814e BZ |
1594 | devinfo->mask |= CDC_SELECT_SPEED; |
1595 | ||
1da177e4 LT |
1596 | devinfo->disk = info->disk; |
1597 | return register_cdrom(devinfo); | |
1598 | } | |
1599 | ||
e5e076a3 | 1600 | static int ide_cdrom_probe_capabilities(ide_drive_t *drive) |
1da177e4 | 1601 | { |
4fe67178 BZ |
1602 | struct cdrom_info *cd = drive->driver_data; |
1603 | struct cdrom_device_info *cdi = &cd->devinfo; | |
455d80a9 BZ |
1604 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; |
1605 | mechtype_t mechtype; | |
1da177e4 LT |
1606 | int nslots = 1; |
1607 | ||
3f1b86d8 BZ |
1608 | cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | |
1609 | CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | | |
1610 | CDC_MO_DRIVE | CDC_RAM); | |
1611 | ||
1da177e4 | 1612 | if (drive->media == ide_optical) { |
3f1b86d8 | 1613 | cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); |
83c8565d BP |
1614 | printk(KERN_ERR "%s: ATAPI magneto-optical drive\n", |
1615 | drive->name); | |
1da177e4 LT |
1616 | return nslots; |
1617 | } | |
1618 | ||
570f89ea BP |
1619 | if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) { |
1620 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; | |
3f1b86d8 | 1621 | cdi->mask &= ~CDC_PLAY_AUDIO; |
1da177e4 LT |
1622 | return nslots; |
1623 | } | |
1624 | ||
1625 | /* | |
5a3ea3b4 BP |
1626 | * We have to cheat a little here. the packet will eventually be queued |
1627 | * with ide_cdrom_packet(), which extracts the drive from cdi->handle. | |
1628 | * Since this device hasn't been registered with the Uniform layer yet, | |
1629 | * it can't do this. Same goes for cdi->ops. | |
1da177e4 | 1630 | */ |
2a91f3e5 | 1631 | cdi->handle = drive; |
1da177e4 LT |
1632 | cdi->ops = &ide_cdrom_dops; |
1633 | ||
455d80a9 | 1634 | if (ide_cdrom_get_capabilities(drive, buf)) |
1da177e4 LT |
1635 | return 0; |
1636 | ||
455d80a9 | 1637 | if ((buf[8 + 6] & 0x01) == 0) |
570f89ea | 1638 | drive->atapi_flags |= IDE_AFLAG_NO_DOORLOCK; |
455d80a9 | 1639 | if (buf[8 + 6] & 0x08) |
570f89ea | 1640 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; |
455d80a9 | 1641 | if (buf[8 + 3] & 0x01) |
3f1b86d8 | 1642 | cdi->mask &= ~CDC_CD_R; |
455d80a9 | 1643 | if (buf[8 + 3] & 0x02) |
3f1b86d8 | 1644 | cdi->mask &= ~(CDC_CD_RW | CDC_RAM); |
455d80a9 | 1645 | if (buf[8 + 2] & 0x38) |
3f1b86d8 | 1646 | cdi->mask &= ~CDC_DVD; |
455d80a9 | 1647 | if (buf[8 + 3] & 0x20) |
3f1b86d8 | 1648 | cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); |
455d80a9 | 1649 | if (buf[8 + 3] & 0x10) |
3f1b86d8 | 1650 | cdi->mask &= ~CDC_DVD_R; |
570f89ea | 1651 | if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK)) |
3f1b86d8 | 1652 | cdi->mask &= ~CDC_PLAY_AUDIO; |
455d80a9 BZ |
1653 | |
1654 | mechtype = buf[8 + 6] >> 5; | |
f20f2586 BP |
1655 | if (mechtype == mechtype_caddy || |
1656 | mechtype == mechtype_popup || | |
1657 | (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE)) | |
3f1b86d8 | 1658 | cdi->mask |= CDC_CLOSE_TRAY; |
1da177e4 | 1659 | |
1da177e4 | 1660 | if (cdi->sanyo_slot > 0) { |
3f1b86d8 | 1661 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 | 1662 | nslots = 3; |
cdf6000d BZ |
1663 | } else if (mechtype == mechtype_individual_changer || |
1664 | mechtype == mechtype_cartridge_changer) { | |
2609d06d BZ |
1665 | nslots = cdrom_number_of_slots(cdi); |
1666 | if (nslots > 1) | |
3f1b86d8 | 1667 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 LT |
1668 | } |
1669 | ||
455d80a9 | 1670 | ide_cdrom_update_speed(drive, buf); |
4fe67178 | 1671 | |
1da177e4 | 1672 | printk(KERN_INFO "%s: ATAPI", drive->name); |
4fe67178 BZ |
1673 | |
1674 | /* don't print speed if the drive reported 0 */ | |
2bc4cf2d BZ |
1675 | if (cd->max_speed) |
1676 | printk(KERN_CONT " %dX", cd->max_speed); | |
4fe67178 | 1677 | |
3f1b86d8 | 1678 | printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); |
1da177e4 | 1679 | |
3f1b86d8 BZ |
1680 | if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) |
1681 | printk(KERN_CONT " DVD%s%s", | |
1682 | (cdi->mask & CDC_DVD_R) ? "" : "-R", | |
1683 | (cdi->mask & CDC_DVD_RAM) ? "" : "-RAM"); | |
1da177e4 | 1684 | |
3f1b86d8 BZ |
1685 | if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) |
1686 | printk(KERN_CONT " CD%s%s", | |
1687 | (cdi->mask & CDC_CD_R) ? "" : "-R", | |
1688 | (cdi->mask & CDC_CD_RW) ? "" : "/RW"); | |
1da177e4 | 1689 | |
3f1b86d8 BZ |
1690 | if ((cdi->mask & CDC_SELECT_DISC) == 0) |
1691 | printk(KERN_CONT " changer w/%d slots", nslots); | |
1692 | else | |
1693 | printk(KERN_CONT " drive"); | |
1da177e4 | 1694 | |
141d3b27 | 1695 | printk(KERN_CONT ", %dkB Cache\n", be16_to_cpup((__be16 *)&buf[8 + 12])); |
1da177e4 LT |
1696 | |
1697 | return nslots; | |
1698 | } | |
1699 | ||
5a3ea3b4 | 1700 | /* standard prep_rq_fn that builds 10 byte cmds */ |
165125e1 | 1701 | static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) |
1da177e4 LT |
1702 | { |
1703 | int hard_sect = queue_hardsect_size(q); | |
1704 | long block = (long)rq->hard_sector / (hard_sect >> 9); | |
1705 | unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9); | |
1706 | ||
d34c87e4 | 1707 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
1708 | |
1709 | if (rq_data_dir(rq) == READ) | |
1710 | rq->cmd[0] = GPCMD_READ_10; | |
1711 | else | |
1712 | rq->cmd[0] = GPCMD_WRITE_10; | |
1713 | ||
1714 | /* | |
1715 | * fill in lba | |
1716 | */ | |
1717 | rq->cmd[2] = (block >> 24) & 0xff; | |
1718 | rq->cmd[3] = (block >> 16) & 0xff; | |
1719 | rq->cmd[4] = (block >> 8) & 0xff; | |
1720 | rq->cmd[5] = block & 0xff; | |
1721 | ||
1722 | /* | |
1723 | * and transfer length | |
1724 | */ | |
1725 | rq->cmd[7] = (blocks >> 8) & 0xff; | |
1726 | rq->cmd[8] = blocks & 0xff; | |
1727 | rq->cmd_len = 10; | |
1728 | return BLKPREP_OK; | |
1729 | } | |
1730 | ||
1731 | /* | |
1732 | * Most of the SCSI commands are supported directly by ATAPI devices. | |
1733 | * This transform handles the few exceptions. | |
1734 | */ | |
1735 | static int ide_cdrom_prep_pc(struct request *rq) | |
1736 | { | |
1737 | u8 *c = rq->cmd; | |
1738 | ||
5a3ea3b4 | 1739 | /* transform 6-byte read/write commands to the 10-byte version */ |
1da177e4 LT |
1740 | if (c[0] == READ_6 || c[0] == WRITE_6) { |
1741 | c[8] = c[4]; | |
1742 | c[5] = c[3]; | |
1743 | c[4] = c[2]; | |
1744 | c[3] = c[1] & 0x1f; | |
1745 | c[2] = 0; | |
1746 | c[1] &= 0xe0; | |
1747 | c[0] += (READ_10 - READ_6); | |
1748 | rq->cmd_len = 10; | |
1749 | return BLKPREP_OK; | |
1750 | } | |
1751 | ||
1752 | /* | |
1753 | * it's silly to pretend we understand 6-byte sense commands, just | |
1754 | * reject with ILLEGAL_REQUEST and the caller should take the | |
1755 | * appropriate action | |
1756 | */ | |
1757 | if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { | |
1758 | rq->errors = ILLEGAL_REQUEST; | |
1759 | return BLKPREP_KILL; | |
1760 | } | |
9ce70fb2 | 1761 | |
1da177e4 LT |
1762 | return BLKPREP_OK; |
1763 | } | |
1764 | ||
165125e1 | 1765 | static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) |
1da177e4 | 1766 | { |
4aff5e23 | 1767 | if (blk_fs_request(rq)) |
1da177e4 | 1768 | return ide_cdrom_prep_fs(q, rq); |
4aff5e23 | 1769 | else if (blk_pc_request(rq)) |
1da177e4 LT |
1770 | return ide_cdrom_prep_pc(rq); |
1771 | ||
1772 | return 0; | |
1773 | } | |
1774 | ||
e59724c7 BZ |
1775 | struct cd_list_entry { |
1776 | const char *id_model; | |
1777 | const char *id_firmware; | |
1778 | unsigned int cd_flags; | |
1779 | }; | |
1780 | ||
5e657a9e BP |
1781 | #ifdef CONFIG_IDE_PROC_FS |
1782 | static sector_t ide_cdrom_capacity(ide_drive_t *drive) | |
1783 | { | |
1784 | unsigned long capacity, sectors_per_frame; | |
1785 | ||
1786 | if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL)) | |
1787 | return 0; | |
1788 | ||
1789 | return capacity * sectors_per_frame; | |
1790 | } | |
1791 | ||
e5e076a3 BP |
1792 | static int proc_idecd_read_capacity(char *page, char **start, off_t off, |
1793 | int count, int *eof, void *data) | |
5e657a9e BP |
1794 | { |
1795 | ide_drive_t *drive = data; | |
1796 | int len; | |
1797 | ||
1798 | len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive)); | |
1799 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); | |
1800 | } | |
1801 | ||
1802 | static ide_proc_entry_t idecd_proc[] = { | |
1803 | { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL }, | |
1804 | { NULL, 0, NULL, NULL } | |
1805 | }; | |
1806 | ||
92f1f8fd | 1807 | ide_devset_rw_field(dsc_overlap, dsc_overlap); |
8185d5aa | 1808 | |
92f1f8fd EO |
1809 | static const struct ide_proc_devset idecd_settings[] = { |
1810 | IDE_PROC_DEVSET(dsc_overlap, 0, 1), | |
1811 | { 0 }, | |
8185d5aa | 1812 | }; |
5e657a9e BP |
1813 | #endif |
1814 | ||
e59724c7 BZ |
1815 | static const struct cd_list_entry ide_cd_quirks_list[] = { |
1816 | /* Limit transfer size per interrupt. */ | |
570f89ea BP |
1817 | { "SAMSUNG CD-ROM SCR-2430", NULL, IDE_AFLAG_LIMIT_NFRAMES }, |
1818 | { "SAMSUNG CD-ROM SCR-2432", NULL, IDE_AFLAG_LIMIT_NFRAMES }, | |
e59724c7 | 1819 | /* SCR-3231 doesn't support the SET_CD_SPEED command. */ |
570f89ea | 1820 | { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT }, |
e59724c7 | 1821 | /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ |
570f89ea BP |
1822 | { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD | |
1823 | IDE_AFLAG_PRE_ATAPI12, }, | |
e59724c7 | 1824 | /* Vertos 300, some versions of this drive like to talk BCD. */ |
570f89ea | 1825 | { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, }, |
e59724c7 | 1826 | /* Vertos 600 ESD. */ |
570f89ea | 1827 | { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, }, |
e59724c7 BZ |
1828 | /* |
1829 | * Sanyo 3 CD changer uses a non-standard command for CD changing | |
1830 | * (by default standard ATAPI support for CD changers is used). | |
1831 | */ | |
570f89ea BP |
1832 | { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD }, |
1833 | { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD }, | |
1834 | { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD }, | |
e59724c7 | 1835 | /* Stingray 8X CD-ROM. */ |
570f89ea | 1836 | { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 }, |
e59724c7 BZ |
1837 | /* |
1838 | * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length | |
1839 | * mode sense page capabilities size, but older drives break. | |
1840 | */ | |
570f89ea BP |
1841 | { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, |
1842 | { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, | |
e59724c7 | 1843 | /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ |
570f89ea | 1844 | { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS }, |
e59724c7 BZ |
1845 | /* |
1846 | * Some drives used by Apple don't advertise audio play | |
1847 | * but they do support reading TOC & audio datas. | |
1848 | */ | |
570f89ea BP |
1849 | { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
1850 | { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1851 | { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1852 | { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1853 | { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
f3e85ee7 | 1854 | { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
f20f2586 | 1855 | { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
e59724c7 BZ |
1856 | { NULL, NULL, 0 } |
1857 | }; | |
1858 | ||
4dde4492 | 1859 | static unsigned int ide_cd_flags(u16 *id) |
e59724c7 BZ |
1860 | { |
1861 | const struct cd_list_entry *cle = ide_cd_quirks_list; | |
1862 | ||
1863 | while (cle->id_model) { | |
4dde4492 | 1864 | if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 && |
e59724c7 | 1865 | (cle->id_firmware == NULL || |
4dde4492 | 1866 | strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware))) |
e59724c7 BZ |
1867 | return cle->cd_flags; |
1868 | cle++; | |
1869 | } | |
1870 | ||
1871 | return 0; | |
1872 | } | |
1873 | ||
e5e076a3 | 1874 | static int ide_cdrom_setup(ide_drive_t *drive) |
1da177e4 | 1875 | { |
4fe67178 BZ |
1876 | struct cdrom_info *cd = drive->driver_data; |
1877 | struct cdrom_device_info *cdi = &cd->devinfo; | |
4dde4492 BZ |
1878 | u16 *id = drive->id; |
1879 | char *fw_rev = (char *)&id[ATA_ID_FW_REV]; | |
1da177e4 LT |
1880 | int nslots; |
1881 | ||
1882 | blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn); | |
1883 | blk_queue_dma_alignment(drive->queue, 31); | |
e5318b53 | 1884 | blk_queue_update_dma_pad(drive->queue, 15); |
1da177e4 LT |
1885 | drive->queue->unplug_delay = (1 * HZ) / 1000; |
1886 | if (!drive->queue->unplug_delay) | |
1887 | drive->queue->unplug_delay = 1; | |
1888 | ||
1889 | drive->special.all = 0; | |
1890 | ||
570f89ea | 1891 | drive->atapi_flags = IDE_AFLAG_MEDIA_CHANGED | IDE_AFLAG_NO_EJECT | |
e59724c7 | 1892 | ide_cd_flags(id); |
1da177e4 | 1893 | |
4dde4492 | 1894 | if ((id[ATA_ID_CONFIG] & 0x0060) == 0x20) |
570f89ea | 1895 | drive->atapi_flags |= IDE_AFLAG_DRQ_INTERRUPT; |
e59724c7 | 1896 | |
570f89ea | 1897 | if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) && |
4dde4492 | 1898 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1899 | drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD | |
1900 | IDE_AFLAG_TOCADDR_AS_BCD); | |
1901 | else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) && | |
4dde4492 | 1902 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1903 | drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD; |
1904 | else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD) | |
5a3ea3b4 BP |
1905 | /* 3 => use CD in slot 0 */ |
1906 | cdi->sanyo_slot = 3; | |
1da177e4 | 1907 | |
9ce70fb2 | 1908 | nslots = ide_cdrom_probe_capabilities(drive); |
1da177e4 | 1909 | |
5a3ea3b4 | 1910 | /* set correct block size */ |
1da177e4 LT |
1911 | blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE); |
1912 | ||
cc12175f | 1913 | drive->dsc_overlap = (drive->next != drive); |
1da177e4 LT |
1914 | |
1915 | if (ide_cdrom_register(drive, nslots)) { | |
83c8565d BP |
1916 | printk(KERN_ERR "%s: %s failed to register device with the" |
1917 | " cdrom driver.\n", drive->name, __func__); | |
4fe67178 | 1918 | cd->devinfo.handle = NULL; |
1da177e4 LT |
1919 | return 1; |
1920 | } | |
1e874f44 BZ |
1921 | |
1922 | ide_proc_register_driver(drive, cd->driver); | |
1da177e4 LT |
1923 | return 0; |
1924 | } | |
1925 | ||
4031bbe4 | 1926 | static void ide_cd_remove(ide_drive_t *drive) |
1da177e4 LT |
1927 | { |
1928 | struct cdrom_info *info = drive->driver_data; | |
1929 | ||
7662d046 | 1930 | ide_proc_unregister_driver(drive, info->driver); |
1da177e4 LT |
1931 | |
1932 | del_gendisk(info->disk); | |
1933 | ||
1934 | ide_cd_put(info); | |
1da177e4 LT |
1935 | } |
1936 | ||
1937 | static void ide_cd_release(struct kref *kref) | |
1938 | { | |
5aeddf90 | 1939 | struct cdrom_info *info = to_ide_drv(kref, cdrom_info); |
1da177e4 LT |
1940 | struct cdrom_device_info *devinfo = &info->devinfo; |
1941 | ide_drive_t *drive = info->drive; | |
1942 | struct gendisk *g = info->disk; | |
1943 | ||
6044ec88 | 1944 | kfree(info->toc); |
0a0c4114 AM |
1945 | if (devinfo->handle == drive) |
1946 | unregister_cdrom(devinfo); | |
1da177e4 LT |
1947 | drive->dsc_overlap = 0; |
1948 | drive->driver_data = NULL; | |
1949 | blk_queue_prep_rq(drive->queue, NULL); | |
1950 | g->private_data = NULL; | |
1951 | put_disk(g); | |
1952 | kfree(info); | |
1953 | } | |
1954 | ||
4031bbe4 | 1955 | static int ide_cd_probe(ide_drive_t *); |
1da177e4 | 1956 | |
1da177e4 | 1957 | static ide_driver_t ide_cdrom_driver = { |
8604affd | 1958 | .gen_driver = { |
4ef3b8f4 | 1959 | .owner = THIS_MODULE, |
8604affd BZ |
1960 | .name = "ide-cdrom", |
1961 | .bus = &ide_bus_type, | |
8604affd | 1962 | }, |
4031bbe4 RK |
1963 | .probe = ide_cd_probe, |
1964 | .remove = ide_cd_remove, | |
1da177e4 LT |
1965 | .version = IDECD_VERSION, |
1966 | .media = ide_cdrom, | |
99384aea | 1967 | .do_request = ide_cd_do_request, |
1da177e4 LT |
1968 | .end_request = ide_end_request, |
1969 | .error = __ide_error, | |
7662d046 | 1970 | #ifdef CONFIG_IDE_PROC_FS |
1da177e4 | 1971 | .proc = idecd_proc, |
8185d5aa | 1972 | .settings = idecd_settings, |
7662d046 | 1973 | #endif |
1da177e4 LT |
1974 | }; |
1975 | ||
9ce70fb2 | 1976 | static int idecd_open(struct inode *inode, struct file *file) |
1da177e4 LT |
1977 | { |
1978 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
1979 | struct cdrom_info *info; | |
1da177e4 LT |
1980 | int rc = -ENOMEM; |
1981 | ||
9ce70fb2 PC |
1982 | info = ide_cd_get(disk); |
1983 | if (!info) | |
1da177e4 LT |
1984 | return -ENXIO; |
1985 | ||
968c4964 | 1986 | rc = cdrom_open(&info->devinfo, inode, file); |
1da177e4 LT |
1987 | |
1988 | if (rc < 0) | |
1989 | ide_cd_put(info); | |
1990 | ||
1991 | return rc; | |
1992 | } | |
1993 | ||
9ce70fb2 | 1994 | static int idecd_release(struct inode *inode, struct file *file) |
1da177e4 LT |
1995 | { |
1996 | struct gendisk *disk = inode->i_bdev->bd_disk; | |
5aeddf90 | 1997 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1998 | |
9ce70fb2 | 1999 | cdrom_release(&info->devinfo, file); |
1da177e4 LT |
2000 | |
2001 | ide_cd_put(info); | |
2002 | ||
2003 | return 0; | |
2004 | } | |
2005 | ||
6a2900b6 CH |
2006 | static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
2007 | { | |
2008 | struct packet_command cgc; | |
2009 | char buffer[16]; | |
2010 | int stat; | |
2011 | char spindown; | |
2012 | ||
2013 | if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) | |
2014 | return -EFAULT; | |
2015 | ||
2016 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
2017 | ||
2018 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
2019 | if (stat) | |
2020 | return stat; | |
2021 | ||
2022 | buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); | |
2023 | return cdrom_mode_select(cdi, &cgc); | |
2024 | } | |
2025 | ||
2026 | static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) | |
2027 | { | |
2028 | struct packet_command cgc; | |
2029 | char buffer[16]; | |
2030 | int stat; | |
9ce70fb2 | 2031 | char spindown; |
6a2900b6 CH |
2032 | |
2033 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
2034 | ||
2035 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
2036 | if (stat) | |
2037 | return stat; | |
2038 | ||
2039 | spindown = buffer[11] & 0x0f; | |
9ce70fb2 | 2040 | if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) |
6a2900b6 CH |
2041 | return -EFAULT; |
2042 | return 0; | |
2043 | } | |
2044 | ||
9ce70fb2 | 2045 | static int idecd_ioctl(struct inode *inode, struct file *file, |
1da177e4 LT |
2046 | unsigned int cmd, unsigned long arg) |
2047 | { | |
2048 | struct block_device *bdev = inode->i_bdev; | |
5aeddf90 | 2049 | struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info); |
1da177e4 LT |
2050 | int err; |
2051 | ||
6a2900b6 | 2052 | switch (cmd) { |
9ce70fb2 | 2053 | case CDROMSETSPINDOWN: |
6a2900b6 | 2054 | return idecd_set_spindown(&info->devinfo, arg); |
9ce70fb2 | 2055 | case CDROMGETSPINDOWN: |
6a2900b6 CH |
2056 | return idecd_get_spindown(&info->devinfo, arg); |
2057 | default: | |
2058 | break; | |
9ce70fb2 | 2059 | } |
6a2900b6 CH |
2060 | |
2061 | err = generic_ide_ioctl(info->drive, file, bdev, cmd, arg); | |
1da177e4 LT |
2062 | if (err == -EINVAL) |
2063 | err = cdrom_ioctl(file, &info->devinfo, inode, cmd, arg); | |
2064 | ||
2065 | return err; | |
2066 | } | |
2067 | ||
2068 | static int idecd_media_changed(struct gendisk *disk) | |
2069 | { | |
5aeddf90 | 2070 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 LT |
2071 | return cdrom_media_changed(&info->devinfo); |
2072 | } | |
2073 | ||
2074 | static int idecd_revalidate_disk(struct gendisk *disk) | |
2075 | { | |
5aeddf90 | 2076 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 2077 | struct request_sense sense; |
139c829d BZ |
2078 | |
2079 | ide_cd_read_toc(info->drive, &sense); | |
2080 | ||
1da177e4 LT |
2081 | return 0; |
2082 | } | |
2083 | ||
2084 | static struct block_device_operations idecd_ops = { | |
9ce70fb2 PC |
2085 | .owner = THIS_MODULE, |
2086 | .open = idecd_open, | |
2087 | .release = idecd_release, | |
2088 | .ioctl = idecd_ioctl, | |
2089 | .media_changed = idecd_media_changed, | |
2090 | .revalidate_disk = idecd_revalidate_disk | |
1da177e4 LT |
2091 | }; |
2092 | ||
5a3ea3b4 | 2093 | /* module options */ |
9ce70fb2 | 2094 | static char *ignore; |
1da177e4 LT |
2095 | |
2096 | module_param(ignore, charp, 0400); | |
2097 | MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); | |
2098 | ||
4031bbe4 | 2099 | static int ide_cd_probe(ide_drive_t *drive) |
1da177e4 LT |
2100 | { |
2101 | struct cdrom_info *info; | |
2102 | struct gendisk *g; | |
2103 | struct request_sense sense; | |
2104 | ||
2105 | if (!strstr("ide-cdrom", drive->driver_req)) | |
2106 | goto failed; | |
2a924662 | 2107 | |
1da177e4 LT |
2108 | if (drive->media != ide_cdrom && drive->media != ide_optical) |
2109 | goto failed; | |
2a924662 | 2110 | |
1da177e4 LT |
2111 | /* skip drives that we were told to ignore */ |
2112 | if (ignore != NULL) { | |
2113 | if (strstr(ignore, drive->name)) { | |
83c8565d BP |
2114 | printk(KERN_INFO "ide-cd: ignoring drive %s\n", |
2115 | drive->name); | |
1da177e4 LT |
2116 | goto failed; |
2117 | } | |
2118 | } | |
f5e3c2fa | 2119 | info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); |
1da177e4 | 2120 | if (info == NULL) { |
83c8565d BP |
2121 | printk(KERN_ERR "%s: Can't allocate a cdrom structure\n", |
2122 | drive->name); | |
1da177e4 LT |
2123 | goto failed; |
2124 | } | |
2125 | ||
2126 | g = alloc_disk(1 << PARTN_BITS); | |
2127 | if (!g) | |
2128 | goto out_free_cd; | |
2129 | ||
2130 | ide_init_disk(g, drive); | |
2131 | ||
1da177e4 LT |
2132 | kref_init(&info->kref); |
2133 | ||
2134 | info->drive = drive; | |
2135 | info->driver = &ide_cdrom_driver; | |
2136 | info->disk = g; | |
2137 | ||
2138 | g->private_data = &info->driver; | |
2139 | ||
2140 | drive->driver_data = info; | |
2141 | ||
1da177e4 | 2142 | g->minors = 1; |
1da177e4 LT |
2143 | g->driverfs_dev = &drive->gendev; |
2144 | g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; | |
2145 | if (ide_cdrom_setup(drive)) { | |
05017db3 | 2146 | ide_cd_release(&info->kref); |
1da177e4 LT |
2147 | goto failed; |
2148 | } | |
1da177e4 | 2149 | |
139c829d | 2150 | ide_cd_read_toc(drive, &sense); |
1da177e4 LT |
2151 | g->fops = &idecd_ops; |
2152 | g->flags |= GENHD_FL_REMOVABLE; | |
2153 | add_disk(g); | |
2154 | return 0; | |
2155 | ||
1da177e4 LT |
2156 | out_free_cd: |
2157 | kfree(info); | |
2158 | failed: | |
8604affd | 2159 | return -ENODEV; |
1da177e4 LT |
2160 | } |
2161 | ||
2162 | static void __exit ide_cdrom_exit(void) | |
2163 | { | |
8604affd | 2164 | driver_unregister(&ide_cdrom_driver.gen_driver); |
1da177e4 | 2165 | } |
17514e8a BZ |
2166 | |
2167 | static int __init ide_cdrom_init(void) | |
1da177e4 | 2168 | { |
8604affd | 2169 | return driver_register(&ide_cdrom_driver.gen_driver); |
1da177e4 LT |
2170 | } |
2171 | ||
263756ec | 2172 | MODULE_ALIAS("ide:*m-cdrom*"); |
972560fb | 2173 | MODULE_ALIAS("ide-cd"); |
1da177e4 LT |
2174 | module_init(ide_cdrom_init); |
2175 | module_exit(ide_cdrom_exit); | |
2176 | MODULE_LICENSE("GPL"); |