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Commit | Line | Data |
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1da177e4 | 1 | /* |
3bb4663b | 2 | * ATAPI CD-ROM driver. |
1da177e4 | 3 | * |
59bca8cc BZ |
4 | * Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov> |
5 | * Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org> | |
6 | * Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de> | |
7 | * Copyright (C) 2005, 2007 Bartlomiej Zolnierkiewicz | |
1da177e4 LT |
8 | * |
9 | * May be copied or modified under the terms of the GNU General Public | |
10 | * License. See linux/COPYING for more information. | |
11 | * | |
1da177e4 LT |
12 | * See Documentation/cdrom/ide-cd for usage information. |
13 | * | |
14 | * Suggestions are welcome. Patches that work are more welcome though. ;-) | |
116e690f BZ |
15 | * |
16 | * Documentation: | |
17 | * Mt. Fuji (SFF8090 version 4) and ATAPI (SFF-8020i rev 2.6) standards. | |
1da177e4 | 18 | * |
03553353 BZ |
19 | * For historical changelog please see: |
20 | * Documentation/ide/ChangeLog.ide-cd.1994-2004 | |
21 | */ | |
22 | ||
fc8323f7 BP |
23 | #define DRV_NAME "ide-cd" |
24 | #define PFX DRV_NAME ": " | |
25 | ||
3bb4663b | 26 | #define IDECD_VERSION "5.00" |
1da177e4 | 27 | |
1da177e4 LT |
28 | #include <linux/module.h> |
29 | #include <linux/types.h> | |
30 | #include <linux/kernel.h> | |
31 | #include <linux/delay.h> | |
32 | #include <linux/timer.h> | |
33 | #include <linux/slab.h> | |
34 | #include <linux/interrupt.h> | |
35 | #include <linux/errno.h> | |
36 | #include <linux/cdrom.h> | |
37 | #include <linux/ide.h> | |
38 | #include <linux/completion.h> | |
cf8b8975 | 39 | #include <linux/mutex.h> |
9a6dc668 | 40 | #include <linux/bcd.h> |
1da177e4 | 41 | |
5a3ea3b4 BP |
42 | /* For SCSI -> ATAPI command conversion */ |
43 | #include <scsi/scsi.h> | |
1da177e4 | 44 | |
9aba468e BP |
45 | #include <linux/irq.h> |
46 | #include <linux/io.h> | |
1da177e4 | 47 | #include <asm/byteorder.h> |
9aba468e | 48 | #include <linux/uaccess.h> |
1da177e4 LT |
49 | #include <asm/unaligned.h> |
50 | ||
51 | #include "ide-cd.h" | |
52 | ||
cf8b8975 | 53 | static DEFINE_MUTEX(idecd_ref_mutex); |
1da177e4 | 54 | |
8fed4368 | 55 | static void ide_cd_release(struct device *); |
08da591e | 56 | |
1da177e4 LT |
57 | static struct cdrom_info *ide_cd_get(struct gendisk *disk) |
58 | { | |
59 | struct cdrom_info *cd = NULL; | |
60 | ||
cf8b8975 | 61 | mutex_lock(&idecd_ref_mutex); |
5aeddf90 | 62 | cd = ide_drv_g(disk, cdrom_info); |
08da591e | 63 | if (cd) { |
d3e33ff5 | 64 | if (ide_device_get(cd->drive)) |
08da591e | 65 | cd = NULL; |
d3e33ff5 | 66 | else |
8fed4368 | 67 | get_device(&cd->dev); |
d3e33ff5 | 68 | |
08da591e | 69 | } |
cf8b8975 | 70 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
71 | return cd; |
72 | } | |
73 | ||
1da177e4 LT |
74 | static void ide_cd_put(struct cdrom_info *cd) |
75 | { | |
d3e33ff5 BZ |
76 | ide_drive_t *drive = cd->drive; |
77 | ||
cf8b8975 | 78 | mutex_lock(&idecd_ref_mutex); |
8fed4368 | 79 | put_device(&cd->dev); |
d3e33ff5 | 80 | ide_device_put(drive); |
cf8b8975 | 81 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
82 | } |
83 | ||
5a3ea3b4 | 84 | /* |
1da177e4 LT |
85 | * Generic packet command support and error handling routines. |
86 | */ | |
87 | ||
5a3ea3b4 | 88 | /* Mark that we've seen a media change and invalidate our internal buffers. */ |
9ce70fb2 | 89 | static void cdrom_saw_media_change(ide_drive_t *drive) |
1da177e4 | 90 | { |
fe11edfa | 91 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
570f89ea | 92 | drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
93 | } |
94 | ||
95 | static int cdrom_log_sense(ide_drive_t *drive, struct request *rq, | |
96 | struct request_sense *sense) | |
97 | { | |
98 | int log = 0; | |
99 | ||
088b1b88 | 100 | ide_debug_log(IDE_DBG_SENSE, "sense_key: 0x%x", sense->sense_key); |
fc8323f7 | 101 | |
4aff5e23 | 102 | if (!sense || !rq || (rq->cmd_flags & REQ_QUIET)) |
1da177e4 LT |
103 | return 0; |
104 | ||
105 | switch (sense->sense_key) { | |
9ce70fb2 PC |
106 | case NO_SENSE: |
107 | case RECOVERED_ERROR: | |
108 | break; | |
109 | case NOT_READY: | |
110 | /* | |
5a3ea3b4 BP |
111 | * don't care about tray state messages for e.g. capacity |
112 | * commands or in-progress or becoming ready | |
9ce70fb2 PC |
113 | */ |
114 | if (sense->asc == 0x3a || sense->asc == 0x04) | |
1da177e4 | 115 | break; |
9ce70fb2 PC |
116 | log = 1; |
117 | break; | |
118 | case ILLEGAL_REQUEST: | |
119 | /* | |
5a3ea3b4 BP |
120 | * don't log START_STOP unit with LoEj set, since we cannot |
121 | * reliably check if drive can auto-close | |
9ce70fb2 PC |
122 | */ |
123 | if (rq->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24) | |
1da177e4 | 124 | break; |
9ce70fb2 PC |
125 | log = 1; |
126 | break; | |
127 | case UNIT_ATTENTION: | |
128 | /* | |
5a3ea3b4 BP |
129 | * Make good and sure we've seen this potential media change. |
130 | * Some drives (i.e. Creative) fail to present the correct sense | |
131 | * key in the error register. | |
9ce70fb2 PC |
132 | */ |
133 | cdrom_saw_media_change(drive); | |
134 | break; | |
135 | default: | |
136 | log = 1; | |
137 | break; | |
1da177e4 LT |
138 | } |
139 | return log; | |
140 | } | |
141 | ||
e5e076a3 | 142 | static void cdrom_analyze_sense_data(ide_drive_t *drive, |
1da177e4 LT |
143 | struct request *failed_command, |
144 | struct request_sense *sense) | |
145 | { | |
dbe217af AC |
146 | unsigned long sector; |
147 | unsigned long bio_sectors; | |
dbe217af AC |
148 | struct cdrom_info *info = drive->driver_data; |
149 | ||
088b1b88 BP |
150 | ide_debug_log(IDE_DBG_SENSE, "error_code: 0x%x, sense_key: 0x%x", |
151 | sense->error_code, sense->sense_key); | |
fc8323f7 BP |
152 | |
153 | if (failed_command) | |
088b1b88 BP |
154 | ide_debug_log(IDE_DBG_SENSE, "failed cmd: 0x%x", |
155 | failed_command->cmd[0]); | |
fc8323f7 | 156 | |
1da177e4 LT |
157 | if (!cdrom_log_sense(drive, failed_command, sense)) |
158 | return; | |
159 | ||
160 | /* | |
5a3ea3b4 BP |
161 | * If a read toc is executed for a CD-R or CD-RW medium where the first |
162 | * toc has not been recorded yet, it will fail with 05/24/00 (which is a | |
163 | * confusing error) | |
1da177e4 LT |
164 | */ |
165 | if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP) | |
166 | if (sense->sense_key == 0x05 && sense->asc == 0x24) | |
167 | return; | |
168 | ||
5a3ea3b4 BP |
169 | /* current error */ |
170 | if (sense->error_code == 0x70) { | |
9ce70fb2 | 171 | switch (sense->sense_key) { |
dbe217af AC |
172 | case MEDIUM_ERROR: |
173 | case VOLUME_OVERFLOW: | |
174 | case ILLEGAL_REQUEST: | |
175 | if (!sense->valid) | |
176 | break; | |
177 | if (failed_command == NULL || | |
178 | !blk_fs_request(failed_command)) | |
179 | break; | |
180 | sector = (sense->information[0] << 24) | | |
181 | (sense->information[1] << 16) | | |
182 | (sense->information[2] << 8) | | |
183 | (sense->information[3]); | |
184 | ||
dbe217af | 185 | if (drive->queue->hardsect_size == 2048) |
5a3ea3b4 BP |
186 | /* device sector size is 2K */ |
187 | sector <<= 2; | |
eee49298 RK |
188 | |
189 | bio_sectors = max(bio_sectors(failed_command->bio), 4U); | |
9ce70fb2 | 190 | sector &= ~(bio_sectors - 1); |
dbe217af | 191 | |
d3dd7107 BZ |
192 | /* |
193 | * The SCSI specification allows for the value | |
194 | * returned by READ CAPACITY to be up to 75 2K | |
195 | * sectors past the last readable block. | |
196 | * Therefore, if we hit a medium error within the | |
197 | * last 75 2K sectors, we decrease the saved size | |
198 | * value. | |
199 | */ | |
dbe217af | 200 | if (sector < get_capacity(info->disk) && |
e5e076a3 | 201 | drive->probed_capacity - sector < 4 * 75) |
dbe217af | 202 | set_capacity(info->disk, sector); |
9ce70fb2 PC |
203 | } |
204 | } | |
1da177e4 | 205 | |
972560fb | 206 | ide_cd_log_error(drive->name, failed_command, sense); |
1da177e4 LT |
207 | } |
208 | ||
1da177e4 LT |
209 | static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, |
210 | struct request *failed_command) | |
211 | { | |
212 | struct cdrom_info *info = drive->driver_data; | |
3f2154d7 | 213 | struct request *rq = &drive->request_sense_rq; |
1da177e4 | 214 | |
088b1b88 | 215 | ide_debug_log(IDE_DBG_SENSE, "enter"); |
fc8323f7 | 216 | |
1da177e4 LT |
217 | if (sense == NULL) |
218 | sense = &info->sense_data; | |
219 | ||
220 | /* stuff the sense request in front of our current request */ | |
ed820f19 FT |
221 | blk_rq_init(NULL, rq); |
222 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
223 | rq->rq_disk = info->disk; | |
1da177e4 LT |
224 | |
225 | rq->data = sense; | |
226 | rq->cmd[0] = GPCMD_REQUEST_SENSE; | |
e5e076a3 BP |
227 | rq->cmd[4] = 18; |
228 | rq->data_len = 18; | |
1da177e4 | 229 | |
4aff5e23 | 230 | rq->cmd_type = REQ_TYPE_SENSE; |
e8a96aa7 | 231 | rq->cmd_flags |= REQ_PREEMPT; |
1da177e4 LT |
232 | |
233 | /* NOTE! Save the failed command in "rq->buffer" */ | |
234 | rq->buffer = (void *) failed_command; | |
235 | ||
fc8323f7 | 236 | if (failed_command) |
088b1b88 BP |
237 | ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x", |
238 | failed_command->cmd[0]); | |
fc8323f7 | 239 | |
18660823 BZ |
240 | drive->hwif->rq = NULL; |
241 | ||
242 | elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0); | |
1da177e4 LT |
243 | } |
244 | ||
299c4852 BZ |
245 | static void ide_cd_complete_failed_rq(ide_drive_t *drive, struct request *rq) |
246 | { | |
247 | /* | |
248 | * For REQ_TYPE_SENSE, "rq->buffer" points to the original | |
249 | * failed request | |
250 | */ | |
251 | struct request *failed = (struct request *)rq->buffer; | |
252 | struct cdrom_info *info = drive->driver_data; | |
253 | void *sense = &info->sense_data; | |
254 | ||
255 | if (failed) { | |
256 | if (failed->sense) { | |
257 | sense = failed->sense; | |
258 | failed->sense_len = rq->sense_len; | |
259 | } | |
260 | cdrom_analyze_sense_data(drive, failed, sense); | |
261 | ||
262 | if (ide_end_rq(drive, failed, -EIO, blk_rq_bytes(failed))) | |
263 | BUG(); | |
264 | } else | |
265 | cdrom_analyze_sense_data(drive, NULL, sense); | |
266 | } | |
267 | ||
5a3ea3b4 BP |
268 | /* |
269 | * Returns: | |
270 | * 0: if the request should be continued. | |
8a116974 BZ |
271 | * 1: if the request will be going through error recovery. |
272 | * 2: if the request should be ended. | |
5a3ea3b4 | 273 | */ |
1da177e4 LT |
274 | static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) |
275 | { | |
b73c7ee2 | 276 | ide_hwif_t *hwif = drive->hwif; |
b65fac32 | 277 | struct request *rq = hwif->rq; |
1da177e4 | 278 | int stat, err, sense_key; |
9ce70fb2 | 279 | |
5a3ea3b4 | 280 | /* check for errors */ |
374e042c | 281 | stat = hwif->tp_ops->read_status(hwif); |
c47137a9 | 282 | |
1da177e4 LT |
283 | if (stat_ret) |
284 | *stat_ret = stat; | |
285 | ||
286 | if (OK_STAT(stat, good_stat, BAD_R_STAT)) | |
287 | return 0; | |
288 | ||
5a3ea3b4 | 289 | /* get the IDE error register */ |
64a57fe4 | 290 | err = ide_read_error(drive); |
1da177e4 LT |
291 | sense_key = err >> 4; |
292 | ||
088b1b88 BP |
293 | ide_debug_log(IDE_DBG_RQ, "stat: 0x%x, good_stat: 0x%x, cmd[0]: 0x%x, " |
294 | "rq->cmd_type: 0x%x, err: 0x%x", | |
295 | stat, good_stat, rq->cmd[0], rq->cmd_type, | |
296 | err); | |
fc8323f7 | 297 | |
4aff5e23 | 298 | if (blk_sense_request(rq)) { |
5a3ea3b4 BP |
299 | /* |
300 | * We got an error trying to get sense info from the drive | |
301 | * (probably while trying to recover from a former error). | |
302 | * Just give up. | |
303 | */ | |
4aff5e23 | 304 | rq->cmd_flags |= REQ_FAILED; |
8a116974 | 305 | return 2; |
8770c018 | 306 | } else if (blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) { |
1da177e4 | 307 | /* All other functions, except for READ. */ |
1da177e4 LT |
308 | |
309 | /* | |
310 | * if we have an error, pass back CHECK_CONDITION as the | |
311 | * scsi status byte | |
312 | */ | |
b7156731 | 313 | if (blk_pc_request(rq) && !rq->errors) |
1da177e4 LT |
314 | rq->errors = SAM_STAT_CHECK_CONDITION; |
315 | ||
5a3ea3b4 | 316 | /* check for tray open */ |
1da177e4 | 317 | if (sense_key == NOT_READY) { |
9ce70fb2 | 318 | cdrom_saw_media_change(drive); |
1da177e4 | 319 | } else if (sense_key == UNIT_ATTENTION) { |
5a3ea3b4 | 320 | /* check for media change */ |
9ce70fb2 | 321 | cdrom_saw_media_change(drive); |
1da177e4 | 322 | return 0; |
9ce70fb2 PC |
323 | } else if (sense_key == ILLEGAL_REQUEST && |
324 | rq->cmd[0] == GPCMD_START_STOP_UNIT) { | |
325 | /* | |
326 | * Don't print error message for this condition-- | |
327 | * SFF8090i indicates that 5/24/00 is the correct | |
328 | * response to a request to close the tray if the | |
329 | * drive doesn't have that capability. | |
330 | * cdrom_log_sense() knows this! | |
331 | */ | |
4aff5e23 | 332 | } else if (!(rq->cmd_flags & REQ_QUIET)) { |
5a3ea3b4 | 333 | /* otherwise, print an error */ |
1da177e4 LT |
334 | ide_dump_status(drive, "packet command error", stat); |
335 | } | |
9ce70fb2 | 336 | |
4aff5e23 | 337 | rq->cmd_flags |= REQ_FAILED; |
1da177e4 LT |
338 | |
339 | /* | |
340 | * instead of playing games with moving completions around, | |
341 | * remove failed request completely and end it when the | |
342 | * request sense has completed | |
343 | */ | |
bbb89e3d | 344 | goto end_request; |
1da177e4 LT |
345 | |
346 | } else if (blk_fs_request(rq)) { | |
347 | int do_end_request = 0; | |
348 | ||
5a3ea3b4 | 349 | /* handle errors from READ and WRITE requests */ |
1da177e4 LT |
350 | |
351 | if (blk_noretry_request(rq)) | |
352 | do_end_request = 1; | |
353 | ||
354 | if (sense_key == NOT_READY) { | |
5a3ea3b4 | 355 | /* tray open */ |
1da177e4 | 356 | if (rq_data_dir(rq) == READ) { |
9ce70fb2 | 357 | cdrom_saw_media_change(drive); |
1da177e4 | 358 | |
5a3ea3b4 | 359 | /* fail the request */ |
fc8323f7 BP |
360 | printk(KERN_ERR PFX "%s: tray open\n", |
361 | drive->name); | |
1da177e4 LT |
362 | do_end_request = 1; |
363 | } else { | |
364 | struct cdrom_info *info = drive->driver_data; | |
365 | ||
5a3ea3b4 BP |
366 | /* |
367 | * Allow the drive 5 seconds to recover, some | |
1da177e4 | 368 | * devices will return this error while flushing |
5a3ea3b4 BP |
369 | * data from cache. |
370 | */ | |
1da177e4 | 371 | if (!rq->errors) |
83c8565d BP |
372 | info->write_timeout = jiffies + |
373 | ATAPI_WAIT_WRITE_BUSY; | |
1da177e4 LT |
374 | rq->errors = 1; |
375 | if (time_after(jiffies, info->write_timeout)) | |
376 | do_end_request = 1; | |
377 | else { | |
6ea52226 | 378 | struct request_queue *q = drive->queue; |
1da177e4 LT |
379 | unsigned long flags; |
380 | ||
381 | /* | |
5a3ea3b4 BP |
382 | * take a breather relying on the unplug |
383 | * timer to kick us again | |
1da177e4 | 384 | */ |
6ea52226 BZ |
385 | spin_lock_irqsave(q->queue_lock, flags); |
386 | blk_plug_device(q); | |
387 | spin_unlock_irqrestore(q->queue_lock, flags); | |
388 | ||
1da177e4 LT |
389 | return 1; |
390 | } | |
391 | } | |
392 | } else if (sense_key == UNIT_ATTENTION) { | |
5a3ea3b4 | 393 | /* media change */ |
e5e076a3 | 394 | cdrom_saw_media_change(drive); |
1da177e4 | 395 | |
9ce70fb2 | 396 | /* |
5a3ea3b4 BP |
397 | * Arrange to retry the request but be sure to give up |
398 | * if we've retried too many times. | |
9ce70fb2 | 399 | */ |
1da177e4 LT |
400 | if (++rq->errors > ERROR_MAX) |
401 | do_end_request = 1; | |
402 | } else if (sense_key == ILLEGAL_REQUEST || | |
403 | sense_key == DATA_PROTECT) { | |
9ce70fb2 | 404 | /* |
5a3ea3b4 BP |
405 | * No point in retrying after an illegal request or data |
406 | * protect error. | |
9ce70fb2 | 407 | */ |
1ab6d745 | 408 | ide_dump_status(drive, "command error", stat); |
1da177e4 LT |
409 | do_end_request = 1; |
410 | } else if (sense_key == MEDIUM_ERROR) { | |
9ce70fb2 PC |
411 | /* |
412 | * No point in re-trying a zillion times on a bad | |
5a3ea3b4 | 413 | * sector. If we got here the error is not correctable. |
9ce70fb2 | 414 | */ |
1ab6d745 BZ |
415 | ide_dump_status(drive, "media error (bad sector)", |
416 | stat); | |
1da177e4 LT |
417 | do_end_request = 1; |
418 | } else if (sense_key == BLANK_CHECK) { | |
5a3ea3b4 | 419 | /* disk appears blank ?? */ |
1ab6d745 | 420 | ide_dump_status(drive, "media error (blank)", stat); |
1da177e4 | 421 | do_end_request = 1; |
3a7d2484 | 422 | } else if ((err & ~ATA_ABORTED) != 0) { |
5a3ea3b4 | 423 | /* go to the default handler for other errors */ |
1da177e4 LT |
424 | ide_error(drive, "cdrom_decode_status", stat); |
425 | return 1; | |
426 | } else if ((++rq->errors > ERROR_MAX)) { | |
5a3ea3b4 | 427 | /* we've racked up too many retries, abort */ |
1da177e4 LT |
428 | do_end_request = 1; |
429 | } | |
430 | ||
5a3ea3b4 BP |
431 | /* |
432 | * End a request through request sense analysis when we have | |
433 | * sense data. We need this in order to perform end of media | |
434 | * processing. | |
435 | */ | |
bbb89e3d BZ |
436 | if (do_end_request) |
437 | goto end_request; | |
dbe217af | 438 | |
bbb89e3d | 439 | /* |
5a3ea3b4 BP |
440 | * If we got a CHECK_CONDITION status, queue |
441 | * a request sense command. | |
bbb89e3d | 442 | */ |
3a7d2484 | 443 | if (stat & ATA_ERR) |
bbb89e3d | 444 | cdrom_queue_request_sense(drive, NULL, NULL); |
8a116974 | 445 | return 1; |
1da177e4 | 446 | } else { |
fc8323f7 | 447 | blk_dump_rq_flags(rq, PFX "bad rq"); |
8a116974 | 448 | return 2; |
1da177e4 LT |
449 | } |
450 | ||
bbb89e3d | 451 | end_request: |
3a7d2484 | 452 | if (stat & ATA_ERR) { |
6ea52226 | 453 | struct request_queue *q = drive->queue; |
bbb89e3d BZ |
454 | unsigned long flags; |
455 | ||
6ea52226 | 456 | spin_lock_irqsave(q->queue_lock, flags); |
bbb89e3d | 457 | blkdev_dequeue_request(rq); |
6ea52226 | 458 | spin_unlock_irqrestore(q->queue_lock, flags); |
bbb89e3d | 459 | |
b65fac32 | 460 | hwif->rq = NULL; |
1d0bf587 | 461 | |
bbb89e3d | 462 | cdrom_queue_request_sense(drive, rq->sense, rq); |
8a116974 | 463 | return 1; |
bbb89e3d | 464 | } else |
8a116974 | 465 | return 2; |
1da177e4 LT |
466 | } |
467 | ||
1da177e4 LT |
468 | /* |
469 | * Check the contents of the interrupt reason register from the cdrom | |
470 | * and attempt to recover if there are problems. Returns 0 if everything's | |
471 | * ok; nonzero if the request has been terminated. | |
472 | */ | |
9f10d9ee BZ |
473 | static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, |
474 | int len, int ireason, int rw) | |
1da177e4 | 475 | { |
b73c7ee2 BZ |
476 | ide_hwif_t *hwif = drive->hwif; |
477 | ||
088b1b88 | 478 | ide_debug_log(IDE_DBG_FUNC, "ireason: 0x%x, rw: 0x%x", ireason, rw); |
fc8323f7 | 479 | |
0d6f7e3a BZ |
480 | /* |
481 | * ireason == 0: the drive wants to receive data from us | |
482 | * ireason == 2: the drive is expecting to transfer data to us | |
483 | */ | |
484 | if (ireason == (!rw << 1)) | |
1da177e4 | 485 | return 0; |
0d6f7e3a | 486 | else if (ireason == (rw << 1)) { |
5a5222d9 | 487 | |
5a3ea3b4 | 488 | /* whoops... */ |
fc8323f7 | 489 | printk(KERN_ERR PFX "%s: %s: wrong transfer direction!\n", |
177773ed | 490 | drive->name, __func__); |
1da177e4 | 491 | |
ae8789f0 | 492 | ide_pad_transfer(drive, rw, len); |
0d6f7e3a | 493 | } else if (rw == 0 && ireason == 1) { |
5a3ea3b4 BP |
494 | /* |
495 | * Some drives (ASUS) seem to tell us that status info is | |
496 | * available. Just get it and ignore. | |
1da177e4 | 497 | */ |
374e042c | 498 | (void)hwif->tp_ops->read_status(hwif); |
1da177e4 LT |
499 | return 0; |
500 | } else { | |
5a3ea3b4 | 501 | /* drive wants a command packet, or invalid ireason... */ |
fc8323f7 | 502 | printk(KERN_ERR PFX "%s: %s: bad interrupt reason 0x%02x\n", |
177773ed | 503 | drive->name, __func__, ireason); |
1da177e4 LT |
504 | } |
505 | ||
9f10d9ee BZ |
506 | if (rq->cmd_type == REQ_TYPE_ATA_PC) |
507 | rq->cmd_flags |= REQ_FAILED; | |
508 | ||
1da177e4 LT |
509 | return -1; |
510 | } | |
511 | ||
64814f23 BZ |
512 | /* |
513 | * Assume that the drive will always provide data in multiples of at least | |
514 | * SECTOR_SIZE, as it gets hairy to keep track of the transfers otherwise. | |
515 | */ | |
516 | static int ide_cd_check_transfer_size(ide_drive_t *drive, int len) | |
517 | { | |
088b1b88 | 518 | ide_debug_log(IDE_DBG_FUNC, "len: %d", len); |
fc8323f7 | 519 | |
64814f23 BZ |
520 | if ((len % SECTOR_SIZE) == 0) |
521 | return 0; | |
522 | ||
fc8323f7 BP |
523 | printk(KERN_ERR PFX "%s: %s: Bad transfer size %d\n", drive->name, |
524 | __func__, len); | |
64814f23 | 525 | |
570f89ea | 526 | if (drive->atapi_flags & IDE_AFLAG_LIMIT_NFRAMES) |
fc8323f7 BP |
527 | printk(KERN_ERR PFX "This drive is not supported by this " |
528 | "version of the driver\n"); | |
64814f23 | 529 | else { |
fc8323f7 | 530 | printk(KERN_ERR PFX "Trying to limit transfer sizes\n"); |
570f89ea | 531 | drive->atapi_flags |= IDE_AFLAG_LIMIT_NFRAMES; |
64814f23 BZ |
532 | } |
533 | ||
534 | return 1; | |
535 | } | |
536 | ||
90eb808e BP |
537 | static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive, |
538 | struct request *rq) | |
1da177e4 | 539 | { |
088b1b88 | 540 | ide_debug_log(IDE_DBG_RQ, "rq->cmd_flags: 0x%x", rq->cmd_flags); |
fc8323f7 | 541 | |
5a3ea3b4 | 542 | /* set up the command */ |
1da177e4 LT |
543 | rq->timeout = ATAPI_WAIT_PC; |
544 | ||
90eb808e BP |
545 | return ide_started; |
546 | } | |
547 | ||
fc8323f7 | 548 | static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct request *rq) |
8ee69f5a | 549 | { |
088b1b88 | 550 | ide_debug_log(IDE_DBG_FUNC, "rq->cmd[0]: 0x%x", rq->cmd[0]); |
fc8323f7 | 551 | |
8ee69f5a BZ |
552 | /* |
553 | * Some of the trailing request sense fields are optional, | |
554 | * and some drives don't send them. Sigh. | |
555 | */ | |
556 | if (rq->cmd[0] == GPCMD_REQUEST_SENSE && | |
557 | rq->data_len > 0 && rq->data_len <= 5) | |
558 | while (rq->data_len > 0) { | |
559 | *(u8 *)rq->data++ = 0; | |
560 | --rq->data_len; | |
561 | } | |
562 | } | |
563 | ||
5f828546 FT |
564 | int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, |
565 | int write, void *buffer, unsigned *bufflen, | |
566 | struct request_sense *sense, int timeout, | |
567 | unsigned int cmd_flags) | |
1da177e4 | 568 | { |
5f828546 FT |
569 | struct cdrom_info *info = drive->driver_data; |
570 | struct request_sense local_sense; | |
1da177e4 | 571 | int retries = 10; |
5f828546 | 572 | unsigned int flags = 0; |
1da177e4 | 573 | |
5f828546 FT |
574 | if (!sense) |
575 | sense = &local_sense; | |
1da177e4 | 576 | |
088b1b88 BP |
577 | ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x, timeout: %d, " |
578 | "cmd_flags: 0x%x", | |
579 | cmd[0], write, timeout, cmd_flags); | |
fc8323f7 | 580 | |
5a3ea3b4 | 581 | /* start of retry loop */ |
1da177e4 | 582 | do { |
5f828546 | 583 | struct request *rq; |
1da177e4 | 584 | int error; |
1da177e4 | 585 | |
5f828546 FT |
586 | rq = blk_get_request(drive->queue, write, __GFP_WAIT); |
587 | ||
588 | memcpy(rq->cmd, cmd, BLK_MAX_CDB); | |
589 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
590 | rq->sense = sense; | |
591 | rq->cmd_flags |= cmd_flags; | |
592 | rq->timeout = timeout; | |
593 | if (buffer) { | |
594 | rq->data = buffer; | |
595 | rq->data_len = *bufflen; | |
596 | } | |
597 | ||
598 | error = blk_execute_rq(drive->queue, info->disk, rq, 0); | |
599 | ||
600 | if (buffer) | |
601 | *bufflen = rq->data_len; | |
602 | ||
603 | flags = rq->cmd_flags; | |
604 | blk_put_request(rq); | |
1da177e4 | 605 | |
5a3ea3b4 BP |
606 | /* |
607 | * FIXME: we should probably abort/retry or something in case of | |
608 | * failure. | |
609 | */ | |
5f828546 | 610 | if (flags & REQ_FAILED) { |
5a3ea3b4 BP |
611 | /* |
612 | * The request failed. Retry if it was due to a unit | |
613 | * attention status (usually means media was changed). | |
614 | */ | |
5f828546 | 615 | struct request_sense *reqbuf = sense; |
1da177e4 LT |
616 | |
617 | if (reqbuf->sense_key == UNIT_ATTENTION) | |
618 | cdrom_saw_media_change(drive); | |
619 | else if (reqbuf->sense_key == NOT_READY && | |
620 | reqbuf->asc == 4 && reqbuf->ascq != 4) { | |
5a3ea3b4 BP |
621 | /* |
622 | * The drive is in the process of loading | |
623 | * a disk. Retry, but wait a little to give | |
624 | * the drive time to complete the load. | |
625 | */ | |
1da177e4 LT |
626 | ssleep(2); |
627 | } else { | |
5a3ea3b4 | 628 | /* otherwise, don't retry */ |
1da177e4 LT |
629 | retries = 0; |
630 | } | |
631 | --retries; | |
632 | } | |
633 | ||
5a3ea3b4 | 634 | /* end of retry loop */ |
5f828546 | 635 | } while ((flags & REQ_FAILED) && retries >= 0); |
1da177e4 | 636 | |
5a3ea3b4 | 637 | /* return an error if the command failed */ |
5f828546 | 638 | return (flags & REQ_FAILED) ? -EIO : 0; |
1da177e4 LT |
639 | } |
640 | ||
a08915ba BZ |
641 | static void ide_cd_error_cmd(ide_drive_t *drive, struct ide_cmd *cmd) |
642 | { | |
643 | unsigned int nr_bytes = cmd->nbytes - cmd->nleft; | |
644 | ||
645 | if (cmd->tf_flags & IDE_TFLAG_WRITE) | |
646 | nr_bytes -= cmd->last_xfer_len; | |
647 | ||
648 | if (nr_bytes > 0) | |
649 | ide_complete_rq(drive, 0, nr_bytes); | |
650 | } | |
651 | ||
aaa04c28 | 652 | /* |
5a3ea3b4 BP |
653 | * Called from blk_end_request_callback() after the data of the request is |
654 | * completed and before the request itself is completed. By returning value '1', | |
655 | * blk_end_request_callback() returns immediately without completing it. | |
aaa04c28 KU |
656 | */ |
657 | static int cdrom_newpc_intr_dummy_cb(struct request *rq) | |
658 | { | |
659 | return 1; | |
660 | } | |
661 | ||
1da177e4 LT |
662 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) |
663 | { | |
23579a2a | 664 | ide_hwif_t *hwif = drive->hwif; |
a08915ba | 665 | struct ide_cmd *cmd = &hwif->cmd; |
b65fac32 | 666 | struct request *rq = hwif->rq; |
1da177e4 | 667 | xfer_func_t *xferfunc; |
0041e7c6 | 668 | ide_expiry_t *expiry = NULL; |
1823649b | 669 | int dma_error = 0, dma, stat, thislen, uptodate = 0; |
f63174e7 | 670 | int write = (rq_data_dir(rq) == WRITE) ? 1 : 0, rc, nsectors; |
8a116974 | 671 | int sense = blk_sense_request(rq); |
ff1bfbc1 | 672 | unsigned int timeout; |
1823649b BZ |
673 | u16 len; |
674 | u8 ireason; | |
1da177e4 | 675 | |
088b1b88 BP |
676 | ide_debug_log(IDE_DBG_PC, "cmd[0]: 0x%x, write: 0x%x", |
677 | rq->cmd[0], write); | |
fc8323f7 | 678 | |
5a3ea3b4 | 679 | /* check for errors */ |
12469ac0 | 680 | dma = drive->dma; |
1da177e4 | 681 | if (dma) { |
12469ac0 | 682 | drive->dma = 0; |
5e37bdc0 | 683 | dma_error = hwif->dma_ops->dma_end(drive); |
eba15fba | 684 | if (dma_error) { |
fc8323f7 | 685 | printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name, |
ff1bfbc1 | 686 | write ? "write" : "read"); |
eba15fba BZ |
687 | ide_dma_off(drive); |
688 | } | |
1da177e4 LT |
689 | } |
690 | ||
8a116974 BZ |
691 | rc = cdrom_decode_status(drive, 0, &stat); |
692 | if (rc) { | |
693 | if (rc == 2) | |
694 | goto out_end; | |
1da177e4 | 695 | return ide_stopped; |
8a116974 | 696 | } |
1da177e4 | 697 | |
5a3ea3b4 | 698 | /* using dma, transfer is complete now */ |
1da177e4 | 699 | if (dma) { |
eba15fba | 700 | if (dma_error) |
1da177e4 | 701 | return ide_error(drive, "dma error", stat); |
0041e7c6 | 702 | if (blk_fs_request(rq)) { |
130e8867 BZ |
703 | ide_complete_rq(drive, 0, rq->nr_sectors |
704 | ? (rq->nr_sectors << 9) : ide_rq_bytes(rq)); | |
0041e7c6 | 705 | return ide_stopped; |
9e772d01 | 706 | } else if (rq->cmd_type == REQ_TYPE_ATA_PC && !rq->bio) { |
130e8867 | 707 | ide_complete_rq(drive, 0, 512); |
9e772d01 | 708 | return ide_stopped; |
0041e7c6 | 709 | } |
984c5e59 BZ |
710 | if (blk_pc_request(rq) == 0 && uptodate == 0) |
711 | rq->cmd_flags |= REQ_FAILED; | |
712 | goto out_end; | |
1da177e4 LT |
713 | } |
714 | ||
1823649b | 715 | ide_read_bcount_and_ireason(drive, &len, &ireason); |
0041e7c6 BZ |
716 | |
717 | thislen = blk_fs_request(rq) ? len : rq->data_len; | |
1da177e4 LT |
718 | if (thislen > len) |
719 | thislen = len; | |
720 | ||
088b1b88 BP |
721 | ide_debug_log(IDE_DBG_PC, "DRQ: stat: 0x%x, thislen: %d", |
722 | stat, thislen); | |
fc8323f7 | 723 | |
5a3ea3b4 | 724 | /* If DRQ is clear, the command has completed. */ |
3a7d2484 | 725 | if ((stat & ATA_DRQ) == 0) { |
0041e7c6 BZ |
726 | if (blk_fs_request(rq)) { |
727 | /* | |
728 | * If we're not done reading/writing, complain. | |
729 | * Otherwise, complete the command normally. | |
730 | */ | |
731 | uptodate = 1; | |
a08915ba | 732 | if (cmd->nleft > 0) { |
fc8323f7 | 733 | printk(KERN_ERR PFX "%s: %s: data underrun " |
a08915ba BZ |
734 | "(%u bytes)\n", drive->name, __func__, |
735 | cmd->nleft); | |
0041e7c6 BZ |
736 | if (!write) |
737 | rq->cmd_flags |= REQ_FAILED; | |
738 | uptodate = 0; | |
739 | } | |
0041e7c6 | 740 | } else if (!blk_pc_request(rq)) { |
fc8323f7 | 741 | ide_cd_request_sense_fixup(drive, rq); |
5a3ea3b4 | 742 | /* complain if we still have data left to transfer */ |
ff1bfbc1 | 743 | uptodate = rq->data_len ? 0 : 1; |
984c5e59 BZ |
744 | if (uptodate == 0) |
745 | rq->cmd_flags |= REQ_FAILED; | |
ff1bfbc1 | 746 | } |
984c5e59 | 747 | goto out_end; |
aaa04c28 | 748 | } |
1da177e4 | 749 | |
5a3ea3b4 | 750 | /* check which way to transfer data */ |
8a116974 BZ |
751 | rc = ide_cd_check_ireason(drive, rq, len, ireason, write); |
752 | if (rc) | |
753 | goto out_end; | |
0041e7c6 | 754 | |
9f10d9ee BZ |
755 | if (blk_fs_request(rq)) { |
756 | if (write == 0) { | |
8a116974 BZ |
757 | if (ide_cd_check_transfer_size(drive, len)) |
758 | goto out_end; | |
0041e7c6 | 759 | } |
a08915ba | 760 | cmd->last_xfer_len = 0; |
ff1bfbc1 | 761 | } |
1da177e4 | 762 | |
ff1bfbc1 BZ |
763 | if (ireason == 0) { |
764 | write = 1; | |
374e042c | 765 | xferfunc = hwif->tp_ops->output_data; |
9f10d9ee | 766 | } else { |
ff1bfbc1 | 767 | write = 0; |
374e042c | 768 | xferfunc = hwif->tp_ops->input_data; |
1da177e4 LT |
769 | } |
770 | ||
088b1b88 BP |
771 | ide_debug_log(IDE_DBG_PC, "data transfer, rq->cmd_type: 0x%x, " |
772 | "ireason: 0x%x", | |
773 | rq->cmd_type, ireason); | |
fc8323f7 | 774 | |
5a3ea3b4 | 775 | /* transfer data */ |
1da177e4 | 776 | while (thislen > 0) { |
0041e7c6 | 777 | u8 *ptr = blk_fs_request(rq) ? NULL : rq->data; |
a11e77db | 778 | int blen = rq->data_len; |
1da177e4 | 779 | |
5a3ea3b4 | 780 | /* bio backed? */ |
1da177e4 | 781 | if (rq->bio) { |
0041e7c6 | 782 | if (blk_fs_request(rq)) { |
a08915ba | 783 | blen = min_t(int, thislen, cmd->nleft); |
0041e7c6 BZ |
784 | } else { |
785 | ptr = bio_data(rq->bio); | |
786 | blen = bio_iovec(rq->bio)->bv_len; | |
787 | } | |
1da177e4 LT |
788 | } |
789 | ||
a08915ba BZ |
790 | if ((blk_fs_request(rq) && cmd->nleft == 0) || |
791 | (blk_fs_request(rq) == 0 && ptr == NULL)) { | |
0041e7c6 BZ |
792 | if (blk_fs_request(rq) && !write) |
793 | /* | |
968c4964 | 794 | * If the buffers are full, pipe the rest into |
5a3ea3b4 BP |
795 | * oblivion. |
796 | */ | |
ae8789f0 | 797 | ide_pad_transfer(drive, 0, thislen); |
0041e7c6 | 798 | else { |
fc8323f7 | 799 | printk(KERN_ERR PFX "%s: confused, missing data\n", |
0041e7c6 BZ |
800 | drive->name); |
801 | blk_dump_rq_flags(rq, rq_data_dir(rq) | |
802 | ? "cdrom_newpc_intr, write" | |
803 | : "cdrom_newpc_intr, read"); | |
804 | } | |
1da177e4 LT |
805 | break; |
806 | } | |
807 | ||
808 | if (blen > thislen) | |
809 | blen = thislen; | |
810 | ||
a08915ba BZ |
811 | if (blk_fs_request(rq)) { |
812 | ide_pio_bytes(drive, cmd, write, blen); | |
813 | cmd->last_xfer_len += blen; | |
814 | } else | |
815 | xferfunc(drive, NULL, ptr, blen); | |
1da177e4 LT |
816 | |
817 | thislen -= blen; | |
818 | len -= blen; | |
1da177e4 | 819 | |
a08915ba | 820 | if (blk_fs_request(rq) == 0) { |
0041e7c6 BZ |
821 | rq->data_len -= blen; |
822 | ||
aaa04c28 KU |
823 | /* |
824 | * The request can't be completed until DRQ is cleared. | |
825 | * So complete the data, but don't complete the request | |
826 | * using the dummy function for the callback feature | |
827 | * of blk_end_request_callback(). | |
828 | */ | |
0041e7c6 BZ |
829 | if (rq->bio) |
830 | blk_end_request_callback(rq, 0, blen, | |
aaa04c28 | 831 | cdrom_newpc_intr_dummy_cb); |
0041e7c6 BZ |
832 | else |
833 | rq->data += blen; | |
834 | } | |
8a116974 | 835 | if (sense && write == 0) |
bcd88ac3 | 836 | rq->sense_len += blen; |
1da177e4 LT |
837 | } |
838 | ||
5a3ea3b4 | 839 | /* pad, if necessary */ |
0041e7c6 | 840 | if (!blk_fs_request(rq) && len > 0) |
ae8789f0 | 841 | ide_pad_transfer(drive, write, len); |
1da177e4 | 842 | |
ff1bfbc1 BZ |
843 | if (blk_pc_request(rq)) { |
844 | timeout = rq->timeout; | |
ff1bfbc1 BZ |
845 | } else { |
846 | timeout = ATAPI_WAIT_PC; | |
0041e7c6 | 847 | if (!blk_fs_request(rq)) |
4cad085e | 848 | expiry = ide_cd_expiry; |
ff1bfbc1 BZ |
849 | } |
850 | ||
60c0cd02 BZ |
851 | hwif->expiry = expiry; |
852 | ide_set_handler(drive, cdrom_newpc_intr, timeout); | |
1da177e4 | 853 | return ide_started; |
ff1bfbc1 | 854 | |
984c5e59 | 855 | out_end: |
8a116974 | 856 | if (blk_pc_request(rq) && rc == 0) { |
14e04c3f KU |
857 | unsigned int dlen = rq->data_len; |
858 | ||
859 | if (dma) | |
860 | rq->data_len = 0; | |
ff1bfbc1 | 861 | |
3c8a2cce | 862 | if (blk_end_request(rq, 0, dlen)) |
ff1bfbc1 | 863 | BUG(); |
1d0bf587 | 864 | |
b65fac32 | 865 | hwif->rq = NULL; |
ff1bfbc1 | 866 | } else { |
f63174e7 BZ |
867 | if (sense && uptodate) |
868 | ide_cd_complete_failed_rq(drive, rq); | |
869 | ||
870 | if (blk_fs_request(rq)) { | |
a08915ba | 871 | if (cmd->nleft == 0) |
f63174e7 | 872 | uptodate = 1; |
a08915ba BZ |
873 | if (uptodate == 0) |
874 | ide_cd_error_cmd(drive, cmd); | |
f63174e7 BZ |
875 | } else { |
876 | if (uptodate <= 0 && rq->errors == 0) | |
877 | rq->errors = -EIO; | |
878 | } | |
879 | ||
880 | /* make sure it's fully ended */ | |
881 | if (blk_pc_request(rq)) | |
882 | nsectors = (rq->data_len + 511) >> 9; | |
883 | else | |
a08915ba | 884 | nsectors = rq->hard_nr_sectors; |
f63174e7 BZ |
885 | |
886 | if (nsectors == 0) | |
887 | nsectors = 1; | |
888 | ||
889 | ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9); | |
890 | ||
8a116974 BZ |
891 | if (sense && rc == 2) |
892 | ide_error(drive, "request sense failure", stat); | |
ff1bfbc1 BZ |
893 | } |
894 | return ide_stopped; | |
1da177e4 LT |
895 | } |
896 | ||
21ea1f0f | 897 | static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) |
1da177e4 | 898 | { |
21ea1f0f | 899 | struct cdrom_info *cd = drive->driver_data; |
a08915ba | 900 | struct request_queue *q = drive->queue; |
21ea1f0f BZ |
901 | int write = rq_data_dir(rq) == WRITE; |
902 | unsigned short sectors_per_frame = | |
a08915ba | 903 | queue_hardsect_size(q) >> SECTOR_BITS; |
1da177e4 | 904 | |
088b1b88 BP |
905 | ide_debug_log(IDE_DBG_RQ, "rq->cmd[0]: 0x%x, write: 0x%x, " |
906 | "secs_per_frame: %u", | |
907 | rq->cmd[0], write, sectors_per_frame); | |
fc8323f7 | 908 | |
21ea1f0f | 909 | if (write) { |
5a3ea3b4 | 910 | /* disk has become write protected */ |
e0458ccb | 911 | if (get_disk_ro(cd->disk)) |
21ea1f0f | 912 | return ide_stopped; |
21ea1f0f BZ |
913 | } else { |
914 | /* | |
915 | * We may be retrying this request after an error. Fix up any | |
916 | * weirdness which might be present in the request packet. | |
917 | */ | |
a08915ba | 918 | q->prep_rq_fn(q, rq); |
1da177e4 LT |
919 | } |
920 | ||
a08915ba | 921 | /* fs requests *must* be hardware frame aligned */ |
21ea1f0f | 922 | if ((rq->nr_sectors & (sectors_per_frame - 1)) || |
a08915ba BZ |
923 | (rq->sector & (sectors_per_frame - 1))) |
924 | return ide_stopped; | |
925 | ||
926 | /* use DMA, if possible */ | |
927 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); | |
1da177e4 | 928 | |
21ea1f0f BZ |
929 | if (write) |
930 | cd->devinfo.media_written = 1; | |
1da177e4 | 931 | |
b6ca440a | 932 | return ide_started; |
1da177e4 LT |
933 | } |
934 | ||
b6ca440a | 935 | static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) |
1da177e4 | 936 | { |
1da177e4 | 937 | |
088b1b88 BP |
938 | ide_debug_log(IDE_DBG_PC, "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x", |
939 | rq->cmd[0], rq->cmd_type); | |
fc8323f7 | 940 | |
c9f56a80 BZ |
941 | if (blk_pc_request(rq)) |
942 | rq->cmd_flags |= REQ_QUIET; | |
943 | else | |
944 | rq->cmd_flags &= ~REQ_FAILED; | |
1da177e4 | 945 | |
12469ac0 | 946 | drive->dma = 0; |
1da177e4 | 947 | |
5a3ea3b4 | 948 | /* sg request */ |
e5318b53 FT |
949 | if (rq->bio || ((rq->cmd_type == REQ_TYPE_ATA_PC) && rq->data_len)) { |
950 | struct request_queue *q = drive->queue; | |
951 | unsigned int alignment; | |
efa402d5 | 952 | char *buf; |
1da177e4 | 953 | |
e5318b53 | 954 | if (rq->bio) |
efa402d5 | 955 | buf = bio_data(rq->bio); |
e5318b53 | 956 | else |
efa402d5 | 957 | buf = rq->data; |
e5318b53 | 958 | |
12469ac0 | 959 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
1da177e4 LT |
960 | |
961 | /* | |
962 | * check if dma is safe | |
5d9e4ea5 LT |
963 | * |
964 | * NOTE! The "len" and "addr" checks should possibly have | |
965 | * separate masks. | |
1da177e4 | 966 | */ |
e5318b53 | 967 | alignment = queue_dma_alignment(q) | q->dma_pad_mask; |
9bd27cba BP |
968 | if ((unsigned long)buf & alignment |
969 | || rq->data_len & q->dma_pad_mask | |
efa402d5 | 970 | || object_is_on_stack(buf)) |
12469ac0 | 971 | drive->dma = 0; |
1da177e4 | 972 | } |
1da177e4 LT |
973 | } |
974 | ||
99384aea | 975 | static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, |
e5e076a3 | 976 | sector_t block) |
1da177e4 | 977 | { |
b788ee9c | 978 | struct ide_cmd cmd; |
f63174e7 | 979 | int uptodate = 0, nsectors; |
b788ee9c | 980 | |
088b1b88 BP |
981 | ide_debug_log(IDE_DBG_RQ, "cmd: 0x%x, block: %llu", |
982 | rq->cmd[0], (unsigned long long)block); | |
983 | ||
984 | if (drive->debug_mask & IDE_DBG_RQ) | |
985 | blk_dump_rq_flags(rq, "ide_cd_do_request"); | |
fc8323f7 | 986 | |
1da177e4 | 987 | if (blk_fs_request(rq)) { |
e0458ccb | 988 | if (cdrom_start_rw(drive, rq) == ide_stopped || |
5ed57ad7 | 989 | ide_cd_prepare_rw_request(drive, rq) == ide_stopped) { |
e0458ccb | 990 | goto out_end; |
5ed57ad7 | 991 | } |
c9f56a80 | 992 | } else if (blk_sense_request(rq) || blk_pc_request(rq) || |
cea2885a | 993 | rq->cmd_type == REQ_TYPE_ATA_PC) { |
7fcebda5 BP |
994 | if (!rq->timeout) |
995 | rq->timeout = ATAPI_WAIT_PC; | |
996 | ||
b6ca440a | 997 | cdrom_do_block_pc(drive, rq); |
4aff5e23 | 998 | } else if (blk_special_request(rq)) { |
5a3ea3b4 | 999 | /* right now this can only be a reset... */ |
e0458ccb BZ |
1000 | uptodate = 1; |
1001 | goto out_end; | |
ab9d6e33 | 1002 | } else { |
fc8323f7 | 1003 | blk_dump_rq_flags(rq, DRV_NAME " bad flags"); |
5ed57ad7 BZ |
1004 | if (rq->errors == 0) |
1005 | rq->errors = -EIO; | |
e0458ccb | 1006 | goto out_end; |
1da177e4 | 1007 | } |
b6ca440a | 1008 | |
b788ee9c BZ |
1009 | memset(&cmd, 0, sizeof(cmd)); |
1010 | ||
1011 | if (rq_data_dir(rq)) | |
1012 | cmd.tf_flags |= IDE_TFLAG_WRITE; | |
1013 | ||
1014 | cmd.rq = rq; | |
1015 | ||
a08915ba BZ |
1016 | if (blk_fs_request(rq)) { |
1017 | ide_init_sg_cmd(&cmd, rq->nr_sectors << 9); | |
1018 | ide_map_sg(drive, &cmd); | |
1019 | } | |
1020 | ||
b788ee9c | 1021 | return ide_issue_pc(drive, &cmd); |
e0458ccb | 1022 | out_end: |
c4c69e21 | 1023 | nsectors = rq->hard_nr_sectors; |
f63174e7 BZ |
1024 | |
1025 | if (nsectors == 0) | |
1026 | nsectors = 1; | |
1027 | ||
1028 | ide_complete_rq(drive, uptodate ? 0 : -EIO, nsectors << 9); | |
1029 | ||
e0458ccb | 1030 | return ide_stopped; |
1da177e4 LT |
1031 | } |
1032 | ||
5a3ea3b4 | 1033 | /* |
1da177e4 LT |
1034 | * Ioctl handling. |
1035 | * | |
5a3ea3b4 BP |
1036 | * Routines which queue packet commands take as a final argument a pointer to a |
1037 | * request_sense struct. If execution of the command results in an error with a | |
1038 | * CHECK CONDITION status, this structure will be filled with the results of the | |
1039 | * subsequent request sense command. The pointer can also be NULL, in which case | |
1040 | * no sense information is returned. | |
1da177e4 | 1041 | */ |
e5e076a3 | 1042 | static void msf_from_bcd(struct atapi_msf *msf) |
1da177e4 | 1043 | { |
fc99856a AB |
1044 | msf->minute = bcd2bin(msf->minute); |
1045 | msf->second = bcd2bin(msf->second); | |
1046 | msf->frame = bcd2bin(msf->frame); | |
1da177e4 LT |
1047 | } |
1048 | ||
f9afd18b | 1049 | int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 | 1050 | { |
1da177e4 LT |
1051 | struct cdrom_info *info = drive->driver_data; |
1052 | struct cdrom_device_info *cdi = &info->devinfo; | |
5f828546 | 1053 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1054 | |
088b1b88 | 1055 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1056 | |
5f828546 FT |
1057 | memset(cmd, 0, BLK_MAX_CDB); |
1058 | cmd[0] = GPCMD_TEST_UNIT_READY; | |
1da177e4 | 1059 | |
cdf6000d | 1060 | /* |
5a3ea3b4 BP |
1061 | * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs |
1062 | * instead of supporting the LOAD_UNLOAD opcode. | |
cdf6000d | 1063 | */ |
5f828546 | 1064 | cmd[7] = cdi->sanyo_slot % 3; |
1da177e4 | 1065 | |
141d3b27 | 1066 | return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET); |
1da177e4 LT |
1067 | } |
1068 | ||
1da177e4 LT |
1069 | static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, |
1070 | unsigned long *sectors_per_frame, | |
1071 | struct request_sense *sense) | |
1072 | { | |
1073 | struct { | |
141d3b27 HH |
1074 | __be32 lba; |
1075 | __be32 blocklen; | |
1da177e4 LT |
1076 | } capbuf; |
1077 | ||
1078 | int stat; | |
5f828546 FT |
1079 | unsigned char cmd[BLK_MAX_CDB]; |
1080 | unsigned len = sizeof(capbuf); | |
938bb03d | 1081 | u32 blocklen; |
1da177e4 | 1082 | |
088b1b88 | 1083 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1084 | |
5f828546 FT |
1085 | memset(cmd, 0, BLK_MAX_CDB); |
1086 | cmd[0] = GPCMD_READ_CDVD_CAPACITY; | |
1da177e4 | 1087 | |
5f828546 FT |
1088 | stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, |
1089 | REQ_QUIET); | |
e8e7b9eb JA |
1090 | if (stat) |
1091 | return stat; | |
1092 | ||
1093 | /* | |
1094 | * Sanity check the given block size | |
1095 | */ | |
938bb03d PT |
1096 | blocklen = be32_to_cpu(capbuf.blocklen); |
1097 | switch (blocklen) { | |
1098 | case 512: | |
1099 | case 1024: | |
1100 | case 2048: | |
1101 | case 4096: | |
e8e7b9eb JA |
1102 | break; |
1103 | default: | |
fc8323f7 BP |
1104 | printk(KERN_ERR PFX "%s: weird block size %u\n", |
1105 | drive->name, blocklen); | |
1106 | printk(KERN_ERR PFX "%s: default to 2kb block size\n", | |
1107 | drive->name); | |
938bb03d | 1108 | blocklen = 2048; |
e8e7b9eb | 1109 | break; |
1da177e4 LT |
1110 | } |
1111 | ||
e8e7b9eb | 1112 | *capacity = 1 + be32_to_cpu(capbuf.lba); |
938bb03d | 1113 | *sectors_per_frame = blocklen >> SECTOR_BITS; |
71b429ca | 1114 | |
088b1b88 BP |
1115 | ide_debug_log(IDE_DBG_PROBE, "cap: %lu, sectors_per_frame: %lu", |
1116 | *capacity, *sectors_per_frame); | |
71b429ca | 1117 | |
e8e7b9eb | 1118 | return 0; |
1da177e4 LT |
1119 | } |
1120 | ||
1121 | static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, | |
1122 | int format, char *buf, int buflen, | |
1123 | struct request_sense *sense) | |
1124 | { | |
5f828546 | 1125 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1126 | |
088b1b88 | 1127 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1128 | |
5f828546 | 1129 | memset(cmd, 0, BLK_MAX_CDB); |
1da177e4 | 1130 | |
5f828546 FT |
1131 | cmd[0] = GPCMD_READ_TOC_PMA_ATIP; |
1132 | cmd[6] = trackno; | |
1133 | cmd[7] = (buflen >> 8); | |
1134 | cmd[8] = (buflen & 0xff); | |
1135 | cmd[9] = (format << 6); | |
1da177e4 LT |
1136 | |
1137 | if (msf_flag) | |
5f828546 | 1138 | cmd[1] = 2; |
1da177e4 | 1139 | |
5f828546 | 1140 | return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); |
1da177e4 LT |
1141 | } |
1142 | ||
1da177e4 | 1143 | /* Try to read the entire TOC for the disk into our internal buffer. */ |
17802998 | 1144 | int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 LT |
1145 | { |
1146 | int stat, ntracks, i; | |
1147 | struct cdrom_info *info = drive->driver_data; | |
1148 | struct cdrom_device_info *cdi = &info->devinfo; | |
1149 | struct atapi_toc *toc = info->toc; | |
1150 | struct { | |
1151 | struct atapi_toc_header hdr; | |
1152 | struct atapi_toc_entry ent; | |
1153 | } ms_tmp; | |
1154 | long last_written; | |
1155 | unsigned long sectors_per_frame = SECTORS_PER_FRAME; | |
1156 | ||
088b1b88 | 1157 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1158 | |
1da177e4 | 1159 | if (toc == NULL) { |
5a3ea3b4 | 1160 | /* try to allocate space */ |
2a91f3e5 | 1161 | toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); |
1da177e4 | 1162 | if (toc == NULL) { |
fc8323f7 | 1163 | printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n", |
83c8565d | 1164 | drive->name); |
1da177e4 LT |
1165 | return -ENOMEM; |
1166 | } | |
2a91f3e5 | 1167 | info->toc = toc; |
1da177e4 LT |
1168 | } |
1169 | ||
5a3ea3b4 BP |
1170 | /* |
1171 | * Check to see if the existing data is still valid. If it is, | |
1172 | * just return. | |
1173 | */ | |
1da177e4 LT |
1174 | (void) cdrom_check_status(drive, sense); |
1175 | ||
570f89ea | 1176 | if (drive->atapi_flags & IDE_AFLAG_TOC_VALID) |
1da177e4 LT |
1177 | return 0; |
1178 | ||
5a3ea3b4 | 1179 | /* try to get the total cdrom capacity and sector size */ |
1da177e4 LT |
1180 | stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame, |
1181 | sense); | |
1182 | if (stat) | |
1183 | toc->capacity = 0x1fffff; | |
1184 | ||
1185 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
5a3ea3b4 | 1186 | /* save a private copy of the TOC capacity for error handling */ |
dbe217af AC |
1187 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1188 | ||
1da177e4 LT |
1189 | blk_queue_hardsect_size(drive->queue, |
1190 | sectors_per_frame << SECTOR_BITS); | |
1191 | ||
5a3ea3b4 | 1192 | /* first read just the header, so we know how long the TOC is */ |
1da177e4 LT |
1193 | stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, |
1194 | sizeof(struct atapi_toc_header), sense); | |
2a91f3e5 JJ |
1195 | if (stat) |
1196 | return stat; | |
1da177e4 | 1197 | |
570f89ea | 1198 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1199 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1200 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1201 | } |
1da177e4 LT |
1202 | |
1203 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; | |
1204 | if (ntracks <= 0) | |
1205 | return -EIO; | |
1206 | if (ntracks > MAX_TRACKS) | |
1207 | ntracks = MAX_TRACKS; | |
1208 | ||
5a3ea3b4 | 1209 | /* now read the whole schmeer */ |
1da177e4 LT |
1210 | stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, |
1211 | (char *)&toc->hdr, | |
1212 | sizeof(struct atapi_toc_header) + | |
1213 | (ntracks + 1) * | |
1214 | sizeof(struct atapi_toc_entry), sense); | |
1215 | ||
1216 | if (stat && toc->hdr.first_track > 1) { | |
5a3ea3b4 BP |
1217 | /* |
1218 | * Cds with CDI tracks only don't have any TOC entries, despite | |
1219 | * of this the returned values are | |
1220 | * first_track == last_track = number of CDI tracks + 1, | |
1221 | * so that this case is indistinguishable from the same layout | |
1222 | * plus an additional audio track. If we get an error for the | |
1223 | * regular case, we assume a CDI without additional audio | |
1224 | * tracks. In this case the readable TOC is empty (CDI tracks | |
1225 | * are not included) and only holds the Leadout entry. | |
1226 | * | |
1227 | * Heiko Eißfeldt. | |
1228 | */ | |
1da177e4 LT |
1229 | ntracks = 0; |
1230 | stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, | |
1231 | (char *)&toc->hdr, | |
1232 | sizeof(struct atapi_toc_header) + | |
1233 | (ntracks + 1) * | |
1234 | sizeof(struct atapi_toc_entry), | |
1235 | sense); | |
cdf6000d | 1236 | if (stat) |
1da177e4 | 1237 | return stat; |
cdf6000d | 1238 | |
570f89ea | 1239 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1240 | toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT); |
1241 | toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT); | |
cdf6000d | 1242 | } else { |
1da177e4 LT |
1243 | toc->hdr.first_track = CDROM_LEADOUT; |
1244 | toc->hdr.last_track = CDROM_LEADOUT; | |
1245 | } | |
1246 | } | |
1247 | ||
1248 | if (stat) | |
1249 | return stat; | |
1250 | ||
7eb43fd2 | 1251 | toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); |
1da177e4 | 1252 | |
570f89ea | 1253 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1254 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1255 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1256 | } |
1da177e4 | 1257 | |
cdf6000d | 1258 | for (i = 0; i <= ntracks; i++) { |
570f89ea BP |
1259 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
1260 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) | |
fc99856a | 1261 | toc->ent[i].track = bcd2bin(toc->ent[i].track); |
1da177e4 LT |
1262 | msf_from_bcd(&toc->ent[i].addr.msf); |
1263 | } | |
9ce70fb2 PC |
1264 | toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, |
1265 | toc->ent[i].addr.msf.second, | |
1266 | toc->ent[i].addr.msf.frame); | |
1da177e4 LT |
1267 | } |
1268 | ||
1da177e4 | 1269 | if (toc->hdr.first_track != CDROM_LEADOUT) { |
5a3ea3b4 | 1270 | /* read the multisession information */ |
1da177e4 LT |
1271 | stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, |
1272 | sizeof(ms_tmp), sense); | |
2a91f3e5 JJ |
1273 | if (stat) |
1274 | return stat; | |
1da177e4 LT |
1275 | |
1276 | toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); | |
1277 | } else { | |
e5e076a3 BP |
1278 | ms_tmp.hdr.last_track = CDROM_LEADOUT; |
1279 | ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; | |
1da177e4 LT |
1280 | toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ |
1281 | } | |
1282 | ||
570f89ea | 1283 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
5a3ea3b4 | 1284 | /* re-read multisession information using MSF format */ |
1da177e4 LT |
1285 | stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, |
1286 | sizeof(ms_tmp), sense); | |
1287 | if (stat) | |
1288 | return stat; | |
1289 | ||
9ce70fb2 | 1290 | msf_from_bcd(&ms_tmp.ent.addr.msf); |
1da177e4 | 1291 | toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, |
9ce70fb2 | 1292 | ms_tmp.ent.addr.msf.second, |
1da177e4 LT |
1293 | ms_tmp.ent.addr.msf.frame); |
1294 | } | |
1da177e4 LT |
1295 | |
1296 | toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); | |
1297 | ||
5a3ea3b4 | 1298 | /* now try to get the total cdrom capacity */ |
1da177e4 LT |
1299 | stat = cdrom_get_last_written(cdi, &last_written); |
1300 | if (!stat && (last_written > toc->capacity)) { | |
1301 | toc->capacity = last_written; | |
1302 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
dbe217af | 1303 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1da177e4 LT |
1304 | } |
1305 | ||
1306 | /* Remember that we've read this stuff. */ | |
570f89ea | 1307 | drive->atapi_flags |= IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
1308 | |
1309 | return 0; | |
1310 | } | |
1311 | ||
17802998 | 1312 | int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) |
9235e68b EP |
1313 | { |
1314 | struct cdrom_info *info = drive->driver_data; | |
1315 | struct cdrom_device_info *cdi = &info->devinfo; | |
1316 | struct packet_command cgc; | |
455d80a9 | 1317 | int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; |
9235e68b | 1318 | |
088b1b88 | 1319 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1320 | |
570f89ea | 1321 | if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0) |
455d80a9 | 1322 | size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; |
9235e68b | 1323 | |
455d80a9 | 1324 | init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); |
5a3ea3b4 BP |
1325 | do { |
1326 | /* we seem to get stat=0x01,err=0x00 the first time (??) */ | |
9235e68b EP |
1327 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); |
1328 | if (!stat) | |
1329 | break; | |
1330 | } while (--attempts); | |
1331 | return stat; | |
1332 | } | |
1333 | ||
17802998 | 1334 | void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) |
9235e68b | 1335 | { |
4fe67178 | 1336 | struct cdrom_info *cd = drive->driver_data; |
481c8c64 BZ |
1337 | u16 curspeed, maxspeed; |
1338 | ||
088b1b88 | 1339 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1340 | |
570f89ea | 1341 | if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) { |
141d3b27 HH |
1342 | curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]); |
1343 | maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]); | |
9235e68b | 1344 | } else { |
141d3b27 HH |
1345 | curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]); |
1346 | maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]); | |
9235e68b | 1347 | } |
481c8c64 | 1348 | |
088b1b88 BP |
1349 | ide_debug_log(IDE_DBG_PROBE, "curspeed: %u, maxspeed: %u", |
1350 | curspeed, maxspeed); | |
71b429ca | 1351 | |
2bc4cf2d BZ |
1352 | cd->current_speed = (curspeed + (176/2)) / 176; |
1353 | cd->max_speed = (maxspeed + (176/2)) / 176; | |
9235e68b EP |
1354 | } |
1355 | ||
20e7f7ef BZ |
1356 | #define IDE_CD_CAPABILITIES \ |
1357 | (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ | |
1358 | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ | |
1359 | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ | |
1360 | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ | |
1361 | CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) | |
1da177e4 | 1362 | |
1da177e4 LT |
1363 | static struct cdrom_device_ops ide_cdrom_dops = { |
1364 | .open = ide_cdrom_open_real, | |
1365 | .release = ide_cdrom_release_real, | |
1366 | .drive_status = ide_cdrom_drive_status, | |
1367 | .media_changed = ide_cdrom_check_media_change_real, | |
1368 | .tray_move = ide_cdrom_tray_move, | |
1369 | .lock_door = ide_cdrom_lock_door, | |
1370 | .select_speed = ide_cdrom_select_speed, | |
1371 | .get_last_session = ide_cdrom_get_last_session, | |
1372 | .get_mcn = ide_cdrom_get_mcn, | |
1373 | .reset = ide_cdrom_reset, | |
1374 | .audio_ioctl = ide_cdrom_audio_ioctl, | |
20e7f7ef | 1375 | .capability = IDE_CD_CAPABILITIES, |
1da177e4 LT |
1376 | .generic_packet = ide_cdrom_packet, |
1377 | }; | |
1378 | ||
9ce70fb2 | 1379 | static int ide_cdrom_register(ide_drive_t *drive, int nslots) |
1da177e4 LT |
1380 | { |
1381 | struct cdrom_info *info = drive->driver_data; | |
1382 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1383 | ||
088b1b88 | 1384 | ide_debug_log(IDE_DBG_PROBE, "nslots: %d", nslots); |
fc8323f7 | 1385 | |
1da177e4 | 1386 | devinfo->ops = &ide_cdrom_dops; |
2bc4cf2d | 1387 | devinfo->speed = info->current_speed; |
1da177e4 | 1388 | devinfo->capacity = nslots; |
2a91f3e5 | 1389 | devinfo->handle = drive; |
1da177e4 | 1390 | strcpy(devinfo->name, drive->name); |
1da177e4 | 1391 | |
570f89ea | 1392 | if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT) |
3cbd814e BZ |
1393 | devinfo->mask |= CDC_SELECT_SPEED; |
1394 | ||
1da177e4 LT |
1395 | devinfo->disk = info->disk; |
1396 | return register_cdrom(devinfo); | |
1397 | } | |
1398 | ||
e5e076a3 | 1399 | static int ide_cdrom_probe_capabilities(ide_drive_t *drive) |
1da177e4 | 1400 | { |
4fe67178 BZ |
1401 | struct cdrom_info *cd = drive->driver_data; |
1402 | struct cdrom_device_info *cdi = &cd->devinfo; | |
455d80a9 BZ |
1403 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; |
1404 | mechtype_t mechtype; | |
1da177e4 LT |
1405 | int nslots = 1; |
1406 | ||
088b1b88 BP |
1407 | ide_debug_log(IDE_DBG_PROBE, "media: 0x%x, atapi_flags: 0x%lx", |
1408 | drive->media, drive->atapi_flags); | |
fc8323f7 | 1409 | |
3f1b86d8 BZ |
1410 | cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | |
1411 | CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | | |
1412 | CDC_MO_DRIVE | CDC_RAM); | |
1413 | ||
1da177e4 | 1414 | if (drive->media == ide_optical) { |
3f1b86d8 | 1415 | cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); |
fc8323f7 | 1416 | printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n", |
83c8565d | 1417 | drive->name); |
1da177e4 LT |
1418 | return nslots; |
1419 | } | |
1420 | ||
570f89ea BP |
1421 | if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) { |
1422 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; | |
3f1b86d8 | 1423 | cdi->mask &= ~CDC_PLAY_AUDIO; |
1da177e4 LT |
1424 | return nslots; |
1425 | } | |
1426 | ||
1427 | /* | |
5a3ea3b4 BP |
1428 | * We have to cheat a little here. the packet will eventually be queued |
1429 | * with ide_cdrom_packet(), which extracts the drive from cdi->handle. | |
1430 | * Since this device hasn't been registered with the Uniform layer yet, | |
1431 | * it can't do this. Same goes for cdi->ops. | |
1da177e4 | 1432 | */ |
2a91f3e5 | 1433 | cdi->handle = drive; |
1da177e4 LT |
1434 | cdi->ops = &ide_cdrom_dops; |
1435 | ||
455d80a9 | 1436 | if (ide_cdrom_get_capabilities(drive, buf)) |
1da177e4 LT |
1437 | return 0; |
1438 | ||
455d80a9 | 1439 | if ((buf[8 + 6] & 0x01) == 0) |
42619d35 | 1440 | drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; |
455d80a9 | 1441 | if (buf[8 + 6] & 0x08) |
570f89ea | 1442 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; |
455d80a9 | 1443 | if (buf[8 + 3] & 0x01) |
3f1b86d8 | 1444 | cdi->mask &= ~CDC_CD_R; |
455d80a9 | 1445 | if (buf[8 + 3] & 0x02) |
3f1b86d8 | 1446 | cdi->mask &= ~(CDC_CD_RW | CDC_RAM); |
455d80a9 | 1447 | if (buf[8 + 2] & 0x38) |
3f1b86d8 | 1448 | cdi->mask &= ~CDC_DVD; |
455d80a9 | 1449 | if (buf[8 + 3] & 0x20) |
3f1b86d8 | 1450 | cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); |
455d80a9 | 1451 | if (buf[8 + 3] & 0x10) |
3f1b86d8 | 1452 | cdi->mask &= ~CDC_DVD_R; |
570f89ea | 1453 | if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK)) |
3f1b86d8 | 1454 | cdi->mask &= ~CDC_PLAY_AUDIO; |
455d80a9 BZ |
1455 | |
1456 | mechtype = buf[8 + 6] >> 5; | |
f20f2586 BP |
1457 | if (mechtype == mechtype_caddy || |
1458 | mechtype == mechtype_popup || | |
1459 | (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE)) | |
3f1b86d8 | 1460 | cdi->mask |= CDC_CLOSE_TRAY; |
1da177e4 | 1461 | |
1da177e4 | 1462 | if (cdi->sanyo_slot > 0) { |
3f1b86d8 | 1463 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 | 1464 | nslots = 3; |
cdf6000d BZ |
1465 | } else if (mechtype == mechtype_individual_changer || |
1466 | mechtype == mechtype_cartridge_changer) { | |
2609d06d BZ |
1467 | nslots = cdrom_number_of_slots(cdi); |
1468 | if (nslots > 1) | |
3f1b86d8 | 1469 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 LT |
1470 | } |
1471 | ||
455d80a9 | 1472 | ide_cdrom_update_speed(drive, buf); |
4fe67178 | 1473 | |
fc8323f7 | 1474 | printk(KERN_INFO PFX "%s: ATAPI", drive->name); |
4fe67178 BZ |
1475 | |
1476 | /* don't print speed if the drive reported 0 */ | |
2bc4cf2d BZ |
1477 | if (cd->max_speed) |
1478 | printk(KERN_CONT " %dX", cd->max_speed); | |
4fe67178 | 1479 | |
3f1b86d8 | 1480 | printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); |
1da177e4 | 1481 | |
3f1b86d8 BZ |
1482 | if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) |
1483 | printk(KERN_CONT " DVD%s%s", | |
1484 | (cdi->mask & CDC_DVD_R) ? "" : "-R", | |
419a5b67 | 1485 | (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM"); |
1da177e4 | 1486 | |
3f1b86d8 BZ |
1487 | if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) |
1488 | printk(KERN_CONT " CD%s%s", | |
1489 | (cdi->mask & CDC_CD_R) ? "" : "-R", | |
1490 | (cdi->mask & CDC_CD_RW) ? "" : "/RW"); | |
1da177e4 | 1491 | |
3f1b86d8 BZ |
1492 | if ((cdi->mask & CDC_SELECT_DISC) == 0) |
1493 | printk(KERN_CONT " changer w/%d slots", nslots); | |
1494 | else | |
1495 | printk(KERN_CONT " drive"); | |
1da177e4 | 1496 | |
fc8323f7 BP |
1497 | printk(KERN_CONT ", %dkB Cache\n", |
1498 | be16_to_cpup((__be16 *)&buf[8 + 12])); | |
1da177e4 LT |
1499 | |
1500 | return nslots; | |
1501 | } | |
1502 | ||
5a3ea3b4 | 1503 | /* standard prep_rq_fn that builds 10 byte cmds */ |
165125e1 | 1504 | static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) |
1da177e4 LT |
1505 | { |
1506 | int hard_sect = queue_hardsect_size(q); | |
1507 | long block = (long)rq->hard_sector / (hard_sect >> 9); | |
1508 | unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9); | |
1509 | ||
d34c87e4 | 1510 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
1511 | |
1512 | if (rq_data_dir(rq) == READ) | |
1513 | rq->cmd[0] = GPCMD_READ_10; | |
1514 | else | |
1515 | rq->cmd[0] = GPCMD_WRITE_10; | |
1516 | ||
1517 | /* | |
1518 | * fill in lba | |
1519 | */ | |
1520 | rq->cmd[2] = (block >> 24) & 0xff; | |
1521 | rq->cmd[3] = (block >> 16) & 0xff; | |
1522 | rq->cmd[4] = (block >> 8) & 0xff; | |
1523 | rq->cmd[5] = block & 0xff; | |
1524 | ||
1525 | /* | |
1526 | * and transfer length | |
1527 | */ | |
1528 | rq->cmd[7] = (blocks >> 8) & 0xff; | |
1529 | rq->cmd[8] = blocks & 0xff; | |
1530 | rq->cmd_len = 10; | |
1531 | return BLKPREP_OK; | |
1532 | } | |
1533 | ||
1534 | /* | |
1535 | * Most of the SCSI commands are supported directly by ATAPI devices. | |
1536 | * This transform handles the few exceptions. | |
1537 | */ | |
1538 | static int ide_cdrom_prep_pc(struct request *rq) | |
1539 | { | |
1540 | u8 *c = rq->cmd; | |
1541 | ||
5a3ea3b4 | 1542 | /* transform 6-byte read/write commands to the 10-byte version */ |
1da177e4 LT |
1543 | if (c[0] == READ_6 || c[0] == WRITE_6) { |
1544 | c[8] = c[4]; | |
1545 | c[5] = c[3]; | |
1546 | c[4] = c[2]; | |
1547 | c[3] = c[1] & 0x1f; | |
1548 | c[2] = 0; | |
1549 | c[1] &= 0xe0; | |
1550 | c[0] += (READ_10 - READ_6); | |
1551 | rq->cmd_len = 10; | |
1552 | return BLKPREP_OK; | |
1553 | } | |
1554 | ||
1555 | /* | |
1556 | * it's silly to pretend we understand 6-byte sense commands, just | |
1557 | * reject with ILLEGAL_REQUEST and the caller should take the | |
1558 | * appropriate action | |
1559 | */ | |
1560 | if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { | |
1561 | rq->errors = ILLEGAL_REQUEST; | |
1562 | return BLKPREP_KILL; | |
1563 | } | |
9ce70fb2 | 1564 | |
1da177e4 LT |
1565 | return BLKPREP_OK; |
1566 | } | |
1567 | ||
165125e1 | 1568 | static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) |
1da177e4 | 1569 | { |
4aff5e23 | 1570 | if (blk_fs_request(rq)) |
1da177e4 | 1571 | return ide_cdrom_prep_fs(q, rq); |
4aff5e23 | 1572 | else if (blk_pc_request(rq)) |
1da177e4 LT |
1573 | return ide_cdrom_prep_pc(rq); |
1574 | ||
1575 | return 0; | |
1576 | } | |
1577 | ||
e59724c7 BZ |
1578 | struct cd_list_entry { |
1579 | const char *id_model; | |
1580 | const char *id_firmware; | |
1581 | unsigned int cd_flags; | |
1582 | }; | |
1583 | ||
5e657a9e BP |
1584 | #ifdef CONFIG_IDE_PROC_FS |
1585 | static sector_t ide_cdrom_capacity(ide_drive_t *drive) | |
1586 | { | |
1587 | unsigned long capacity, sectors_per_frame; | |
1588 | ||
1589 | if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL)) | |
1590 | return 0; | |
1591 | ||
1592 | return capacity * sectors_per_frame; | |
1593 | } | |
1594 | ||
e5e076a3 BP |
1595 | static int proc_idecd_read_capacity(char *page, char **start, off_t off, |
1596 | int count, int *eof, void *data) | |
5e657a9e BP |
1597 | { |
1598 | ide_drive_t *drive = data; | |
1599 | int len; | |
1600 | ||
1601 | len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive)); | |
1602 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); | |
1603 | } | |
1604 | ||
1605 | static ide_proc_entry_t idecd_proc[] = { | |
1606 | { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL }, | |
1607 | { NULL, 0, NULL, NULL } | |
1608 | }; | |
1609 | ||
79cb3803 BZ |
1610 | static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive) |
1611 | { | |
1612 | return idecd_proc; | |
1613 | } | |
1614 | ||
1615 | static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive) | |
1616 | { | |
519d6808 | 1617 | return NULL; |
79cb3803 | 1618 | } |
5e657a9e BP |
1619 | #endif |
1620 | ||
e59724c7 BZ |
1621 | static const struct cd_list_entry ide_cd_quirks_list[] = { |
1622 | /* Limit transfer size per interrupt. */ | |
570f89ea BP |
1623 | { "SAMSUNG CD-ROM SCR-2430", NULL, IDE_AFLAG_LIMIT_NFRAMES }, |
1624 | { "SAMSUNG CD-ROM SCR-2432", NULL, IDE_AFLAG_LIMIT_NFRAMES }, | |
e59724c7 | 1625 | /* SCR-3231 doesn't support the SET_CD_SPEED command. */ |
570f89ea | 1626 | { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT }, |
e59724c7 | 1627 | /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ |
570f89ea BP |
1628 | { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD | |
1629 | IDE_AFLAG_PRE_ATAPI12, }, | |
e59724c7 | 1630 | /* Vertos 300, some versions of this drive like to talk BCD. */ |
570f89ea | 1631 | { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, }, |
e59724c7 | 1632 | /* Vertos 600 ESD. */ |
570f89ea | 1633 | { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, }, |
e59724c7 BZ |
1634 | /* |
1635 | * Sanyo 3 CD changer uses a non-standard command for CD changing | |
1636 | * (by default standard ATAPI support for CD changers is used). | |
1637 | */ | |
570f89ea BP |
1638 | { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD }, |
1639 | { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD }, | |
1640 | { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD }, | |
e59724c7 | 1641 | /* Stingray 8X CD-ROM. */ |
570f89ea | 1642 | { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 }, |
e59724c7 BZ |
1643 | /* |
1644 | * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length | |
1645 | * mode sense page capabilities size, but older drives break. | |
1646 | */ | |
570f89ea BP |
1647 | { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, |
1648 | { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, | |
e59724c7 | 1649 | /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ |
570f89ea | 1650 | { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS }, |
e59724c7 BZ |
1651 | /* |
1652 | * Some drives used by Apple don't advertise audio play | |
1653 | * but they do support reading TOC & audio datas. | |
1654 | */ | |
570f89ea BP |
1655 | { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
1656 | { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1657 | { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1658 | { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1659 | { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
f3e85ee7 | 1660 | { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
f20f2586 | 1661 | { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
64c2eae2 | 1662 | { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
e59724c7 BZ |
1663 | { NULL, NULL, 0 } |
1664 | }; | |
1665 | ||
4dde4492 | 1666 | static unsigned int ide_cd_flags(u16 *id) |
e59724c7 BZ |
1667 | { |
1668 | const struct cd_list_entry *cle = ide_cd_quirks_list; | |
1669 | ||
1670 | while (cle->id_model) { | |
4dde4492 | 1671 | if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 && |
e59724c7 | 1672 | (cle->id_firmware == NULL || |
4dde4492 | 1673 | strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware))) |
e59724c7 BZ |
1674 | return cle->cd_flags; |
1675 | cle++; | |
1676 | } | |
1677 | ||
1678 | return 0; | |
1679 | } | |
1680 | ||
e5e076a3 | 1681 | static int ide_cdrom_setup(ide_drive_t *drive) |
1da177e4 | 1682 | { |
4fe67178 BZ |
1683 | struct cdrom_info *cd = drive->driver_data; |
1684 | struct cdrom_device_info *cdi = &cd->devinfo; | |
4dde4492 BZ |
1685 | u16 *id = drive->id; |
1686 | char *fw_rev = (char *)&id[ATA_ID_FW_REV]; | |
1da177e4 LT |
1687 | int nslots; |
1688 | ||
088b1b88 | 1689 | ide_debug_log(IDE_DBG_PROBE, "enter"); |
fc8323f7 | 1690 | |
1da177e4 LT |
1691 | blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn); |
1692 | blk_queue_dma_alignment(drive->queue, 31); | |
e5318b53 | 1693 | blk_queue_update_dma_pad(drive->queue, 15); |
1da177e4 LT |
1694 | drive->queue->unplug_delay = (1 * HZ) / 1000; |
1695 | if (!drive->queue->unplug_delay) | |
1696 | drive->queue->unplug_delay = 1; | |
1697 | ||
fe11edfa BZ |
1698 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
1699 | drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id); | |
1da177e4 | 1700 | |
570f89ea | 1701 | if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) && |
4dde4492 | 1702 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1703 | drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD | |
1704 | IDE_AFLAG_TOCADDR_AS_BCD); | |
1705 | else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) && | |
4dde4492 | 1706 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1707 | drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD; |
1708 | else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD) | |
5a3ea3b4 BP |
1709 | /* 3 => use CD in slot 0 */ |
1710 | cdi->sanyo_slot = 3; | |
1da177e4 | 1711 | |
9ce70fb2 | 1712 | nslots = ide_cdrom_probe_capabilities(drive); |
1da177e4 | 1713 | |
5a3ea3b4 | 1714 | /* set correct block size */ |
1da177e4 LT |
1715 | blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE); |
1716 | ||
1da177e4 | 1717 | if (ide_cdrom_register(drive, nslots)) { |
fc8323f7 | 1718 | printk(KERN_ERR PFX "%s: %s failed to register device with the" |
83c8565d | 1719 | " cdrom driver.\n", drive->name, __func__); |
4fe67178 | 1720 | cd->devinfo.handle = NULL; |
1da177e4 LT |
1721 | return 1; |
1722 | } | |
1e874f44 BZ |
1723 | |
1724 | ide_proc_register_driver(drive, cd->driver); | |
1da177e4 LT |
1725 | return 0; |
1726 | } | |
1727 | ||
4031bbe4 | 1728 | static void ide_cd_remove(ide_drive_t *drive) |
1da177e4 LT |
1729 | { |
1730 | struct cdrom_info *info = drive->driver_data; | |
1731 | ||
088b1b88 | 1732 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1733 | |
7662d046 | 1734 | ide_proc_unregister_driver(drive, info->driver); |
8fed4368 | 1735 | device_del(&info->dev); |
1da177e4 LT |
1736 | del_gendisk(info->disk); |
1737 | ||
8fed4368 BZ |
1738 | mutex_lock(&idecd_ref_mutex); |
1739 | put_device(&info->dev); | |
1740 | mutex_unlock(&idecd_ref_mutex); | |
1da177e4 LT |
1741 | } |
1742 | ||
8fed4368 | 1743 | static void ide_cd_release(struct device *dev) |
1da177e4 | 1744 | { |
8fed4368 | 1745 | struct cdrom_info *info = to_ide_drv(dev, cdrom_info); |
1da177e4 LT |
1746 | struct cdrom_device_info *devinfo = &info->devinfo; |
1747 | ide_drive_t *drive = info->drive; | |
1748 | struct gendisk *g = info->disk; | |
1749 | ||
088b1b88 | 1750 | ide_debug_log(IDE_DBG_FUNC, "enter"); |
fc8323f7 | 1751 | |
6044ec88 | 1752 | kfree(info->toc); |
0a0c4114 AM |
1753 | if (devinfo->handle == drive) |
1754 | unregister_cdrom(devinfo); | |
1da177e4 LT |
1755 | drive->driver_data = NULL; |
1756 | blk_queue_prep_rq(drive->queue, NULL); | |
1757 | g->private_data = NULL; | |
1758 | put_disk(g); | |
1759 | kfree(info); | |
1760 | } | |
1761 | ||
4031bbe4 | 1762 | static int ide_cd_probe(ide_drive_t *); |
1da177e4 | 1763 | |
7f3c868b | 1764 | static struct ide_driver ide_cdrom_driver = { |
8604affd | 1765 | .gen_driver = { |
4ef3b8f4 | 1766 | .owner = THIS_MODULE, |
8604affd BZ |
1767 | .name = "ide-cdrom", |
1768 | .bus = &ide_bus_type, | |
8604affd | 1769 | }, |
4031bbe4 RK |
1770 | .probe = ide_cd_probe, |
1771 | .remove = ide_cd_remove, | |
1da177e4 | 1772 | .version = IDECD_VERSION, |
99384aea | 1773 | .do_request = ide_cd_do_request, |
7662d046 | 1774 | #ifdef CONFIG_IDE_PROC_FS |
79cb3803 BZ |
1775 | .proc_entries = ide_cd_proc_entries, |
1776 | .proc_devsets = ide_cd_proc_devsets, | |
7662d046 | 1777 | #endif |
1da177e4 LT |
1778 | }; |
1779 | ||
488ca606 | 1780 | static int idecd_open(struct block_device *bdev, fmode_t mode) |
1da177e4 | 1781 | { |
488ca606 | 1782 | struct cdrom_info *info = ide_cd_get(bdev->bd_disk); |
1da177e4 LT |
1783 | int rc = -ENOMEM; |
1784 | ||
9ce70fb2 | 1785 | if (!info) |
1da177e4 LT |
1786 | return -ENXIO; |
1787 | ||
488ca606 | 1788 | rc = cdrom_open(&info->devinfo, bdev, mode); |
1da177e4 LT |
1789 | |
1790 | if (rc < 0) | |
1791 | ide_cd_put(info); | |
1792 | ||
1793 | return rc; | |
1794 | } | |
1795 | ||
488ca606 | 1796 | static int idecd_release(struct gendisk *disk, fmode_t mode) |
1da177e4 | 1797 | { |
5aeddf90 | 1798 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1799 | |
488ca606 | 1800 | cdrom_release(&info->devinfo, mode); |
1da177e4 LT |
1801 | |
1802 | ide_cd_put(info); | |
1803 | ||
1804 | return 0; | |
1805 | } | |
1806 | ||
6a2900b6 CH |
1807 | static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
1808 | { | |
1809 | struct packet_command cgc; | |
1810 | char buffer[16]; | |
1811 | int stat; | |
1812 | char spindown; | |
1813 | ||
1814 | if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) | |
1815 | return -EFAULT; | |
1816 | ||
1817 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1818 | ||
1819 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1820 | if (stat) | |
1821 | return stat; | |
1822 | ||
1823 | buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); | |
1824 | return cdrom_mode_select(cdi, &cgc); | |
1825 | } | |
1826 | ||
1827 | static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) | |
1828 | { | |
1829 | struct packet_command cgc; | |
1830 | char buffer[16]; | |
1831 | int stat; | |
9ce70fb2 | 1832 | char spindown; |
6a2900b6 CH |
1833 | |
1834 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1835 | ||
1836 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1837 | if (stat) | |
1838 | return stat; | |
1839 | ||
1840 | spindown = buffer[11] & 0x0f; | |
9ce70fb2 | 1841 | if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) |
6a2900b6 CH |
1842 | return -EFAULT; |
1843 | return 0; | |
1844 | } | |
1845 | ||
488ca606 | 1846 | static int idecd_ioctl(struct block_device *bdev, fmode_t mode, |
1da177e4 LT |
1847 | unsigned int cmd, unsigned long arg) |
1848 | { | |
5aeddf90 | 1849 | struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info); |
1da177e4 LT |
1850 | int err; |
1851 | ||
6a2900b6 | 1852 | switch (cmd) { |
9ce70fb2 | 1853 | case CDROMSETSPINDOWN: |
6a2900b6 | 1854 | return idecd_set_spindown(&info->devinfo, arg); |
9ce70fb2 | 1855 | case CDROMGETSPINDOWN: |
6a2900b6 CH |
1856 | return idecd_get_spindown(&info->devinfo, arg); |
1857 | default: | |
1858 | break; | |
9ce70fb2 | 1859 | } |
6a2900b6 | 1860 | |
1bddd9e6 | 1861 | err = generic_ide_ioctl(info->drive, bdev, cmd, arg); |
1da177e4 | 1862 | if (err == -EINVAL) |
488ca606 | 1863 | err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg); |
1da177e4 LT |
1864 | |
1865 | return err; | |
1866 | } | |
1867 | ||
1868 | static int idecd_media_changed(struct gendisk *disk) | |
1869 | { | |
5aeddf90 | 1870 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 LT |
1871 | return cdrom_media_changed(&info->devinfo); |
1872 | } | |
1873 | ||
1874 | static int idecd_revalidate_disk(struct gendisk *disk) | |
1875 | { | |
5aeddf90 | 1876 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1877 | struct request_sense sense; |
139c829d BZ |
1878 | |
1879 | ide_cd_read_toc(info->drive, &sense); | |
1880 | ||
1da177e4 LT |
1881 | return 0; |
1882 | } | |
1883 | ||
1884 | static struct block_device_operations idecd_ops = { | |
9ce70fb2 | 1885 | .owner = THIS_MODULE, |
488ca606 AV |
1886 | .open = idecd_open, |
1887 | .release = idecd_release, | |
1888 | .locked_ioctl = idecd_ioctl, | |
9ce70fb2 PC |
1889 | .media_changed = idecd_media_changed, |
1890 | .revalidate_disk = idecd_revalidate_disk | |
1da177e4 LT |
1891 | }; |
1892 | ||
5a3ea3b4 | 1893 | /* module options */ |
35d9b17f BP |
1894 | static unsigned long debug_mask; |
1895 | module_param(debug_mask, ulong, 0644); | |
1896 | ||
1da177e4 LT |
1897 | MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); |
1898 | ||
4031bbe4 | 1899 | static int ide_cd_probe(ide_drive_t *drive) |
1da177e4 LT |
1900 | { |
1901 | struct cdrom_info *info; | |
1902 | struct gendisk *g; | |
1903 | struct request_sense sense; | |
1904 | ||
088b1b88 BP |
1905 | ide_debug_log(IDE_DBG_PROBE, "driver_req: %s, media: 0x%x", |
1906 | drive->driver_req, drive->media); | |
fc8323f7 | 1907 | |
1da177e4 LT |
1908 | if (!strstr("ide-cdrom", drive->driver_req)) |
1909 | goto failed; | |
2a924662 | 1910 | |
1da177e4 LT |
1911 | if (drive->media != ide_cdrom && drive->media != ide_optical) |
1912 | goto failed; | |
2a924662 | 1913 | |
35d9b17f | 1914 | drive->debug_mask = debug_mask; |
d6251d44 | 1915 | drive->irq_handler = cdrom_newpc_intr; |
35d9b17f | 1916 | |
f5e3c2fa | 1917 | info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); |
1da177e4 | 1918 | if (info == NULL) { |
fc8323f7 | 1919 | printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n", |
83c8565d | 1920 | drive->name); |
1da177e4 LT |
1921 | goto failed; |
1922 | } | |
1923 | ||
1924 | g = alloc_disk(1 << PARTN_BITS); | |
1925 | if (!g) | |
1926 | goto out_free_cd; | |
1927 | ||
1928 | ide_init_disk(g, drive); | |
1929 | ||
8fed4368 BZ |
1930 | info->dev.parent = &drive->gendev; |
1931 | info->dev.release = ide_cd_release; | |
1932 | dev_set_name(&info->dev, dev_name(&drive->gendev)); | |
1933 | ||
1934 | if (device_register(&info->dev)) | |
1935 | goto out_free_disk; | |
1da177e4 LT |
1936 | |
1937 | info->drive = drive; | |
1938 | info->driver = &ide_cdrom_driver; | |
1939 | info->disk = g; | |
1940 | ||
1941 | g->private_data = &info->driver; | |
1942 | ||
1943 | drive->driver_data = info; | |
1944 | ||
1da177e4 | 1945 | g->minors = 1; |
1da177e4 LT |
1946 | g->driverfs_dev = &drive->gendev; |
1947 | g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; | |
1948 | if (ide_cdrom_setup(drive)) { | |
8fed4368 | 1949 | put_device(&info->dev); |
1da177e4 LT |
1950 | goto failed; |
1951 | } | |
1da177e4 | 1952 | |
139c829d | 1953 | ide_cd_read_toc(drive, &sense); |
1da177e4 LT |
1954 | g->fops = &idecd_ops; |
1955 | g->flags |= GENHD_FL_REMOVABLE; | |
1956 | add_disk(g); | |
1957 | return 0; | |
1958 | ||
8fed4368 BZ |
1959 | out_free_disk: |
1960 | put_disk(g); | |
1da177e4 LT |
1961 | out_free_cd: |
1962 | kfree(info); | |
1963 | failed: | |
8604affd | 1964 | return -ENODEV; |
1da177e4 LT |
1965 | } |
1966 | ||
1967 | static void __exit ide_cdrom_exit(void) | |
1968 | { | |
8604affd | 1969 | driver_unregister(&ide_cdrom_driver.gen_driver); |
1da177e4 | 1970 | } |
17514e8a BZ |
1971 | |
1972 | static int __init ide_cdrom_init(void) | |
1da177e4 | 1973 | { |
fc8323f7 | 1974 | printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n"); |
8604affd | 1975 | return driver_register(&ide_cdrom_driver.gen_driver); |
1da177e4 LT |
1976 | } |
1977 | ||
263756ec | 1978 | MODULE_ALIAS("ide:*m-cdrom*"); |
972560fb | 1979 | MODULE_ALIAS("ide-cd"); |
1da177e4 LT |
1980 | module_init(ide_cdrom_init); |
1981 | module_exit(ide_cdrom_exit); | |
1982 | MODULE_LICENSE("GPL"); |