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Commit | Line | Data |
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1da177e4 | 1 | /* |
3bb4663b | 2 | * ATAPI CD-ROM driver. |
1da177e4 | 3 | * |
59bca8cc BZ |
4 | * Copyright (C) 1994-1996 Scott Snyder <snyder@fnald0.fnal.gov> |
5 | * Copyright (C) 1996-1998 Erik Andersen <andersee@debian.org> | |
6 | * Copyright (C) 1998-2000 Jens Axboe <axboe@suse.de> | |
7 | * Copyright (C) 2005, 2007 Bartlomiej Zolnierkiewicz | |
1da177e4 LT |
8 | * |
9 | * May be copied or modified under the terms of the GNU General Public | |
10 | * License. See linux/COPYING for more information. | |
11 | * | |
1da177e4 LT |
12 | * See Documentation/cdrom/ide-cd for usage information. |
13 | * | |
14 | * Suggestions are welcome. Patches that work are more welcome though. ;-) | |
15 | * For those wishing to work on this driver, please be sure you download | |
9ce70fb2 PC |
16 | * and comply with the latest Mt. Fuji (SFF8090 version 4) and ATAPI |
17 | * (SFF-8020i rev 2.6) standards. These documents can be obtained by | |
1da177e4 LT |
18 | * anonymous ftp from: |
19 | * ftp://fission.dt.wdc.com/pub/standards/SFF_atapi/spec/SFF8020-r2.6/PS/8020r26.ps | |
20 | * ftp://ftp.avc-pioneer.com/Mtfuji4/Spec/Fuji4r10.pdf | |
21 | * | |
03553353 BZ |
22 | * For historical changelog please see: |
23 | * Documentation/ide/ChangeLog.ide-cd.1994-2004 | |
24 | */ | |
25 | ||
fc8323f7 BP |
26 | #define DRV_NAME "ide-cd" |
27 | #define PFX DRV_NAME ": " | |
28 | ||
3bb4663b | 29 | #define IDECD_VERSION "5.00" |
1da177e4 | 30 | |
1da177e4 LT |
31 | #include <linux/module.h> |
32 | #include <linux/types.h> | |
33 | #include <linux/kernel.h> | |
34 | #include <linux/delay.h> | |
35 | #include <linux/timer.h> | |
36 | #include <linux/slab.h> | |
37 | #include <linux/interrupt.h> | |
38 | #include <linux/errno.h> | |
39 | #include <linux/cdrom.h> | |
40 | #include <linux/ide.h> | |
41 | #include <linux/completion.h> | |
cf8b8975 | 42 | #include <linux/mutex.h> |
9a6dc668 | 43 | #include <linux/bcd.h> |
1da177e4 | 44 | |
5a3ea3b4 BP |
45 | /* For SCSI -> ATAPI command conversion */ |
46 | #include <scsi/scsi.h> | |
1da177e4 | 47 | |
9aba468e BP |
48 | #include <linux/irq.h> |
49 | #include <linux/io.h> | |
1da177e4 | 50 | #include <asm/byteorder.h> |
9aba468e | 51 | #include <linux/uaccess.h> |
1da177e4 LT |
52 | #include <asm/unaligned.h> |
53 | ||
54 | #include "ide-cd.h" | |
55 | ||
cf8b8975 | 56 | static DEFINE_MUTEX(idecd_ref_mutex); |
1da177e4 | 57 | |
8fed4368 | 58 | static void ide_cd_release(struct device *); |
08da591e | 59 | |
1da177e4 LT |
60 | static struct cdrom_info *ide_cd_get(struct gendisk *disk) |
61 | { | |
62 | struct cdrom_info *cd = NULL; | |
63 | ||
cf8b8975 | 64 | mutex_lock(&idecd_ref_mutex); |
5aeddf90 | 65 | cd = ide_drv_g(disk, cdrom_info); |
08da591e | 66 | if (cd) { |
d3e33ff5 | 67 | if (ide_device_get(cd->drive)) |
08da591e | 68 | cd = NULL; |
d3e33ff5 | 69 | else |
8fed4368 | 70 | get_device(&cd->dev); |
d3e33ff5 | 71 | |
08da591e | 72 | } |
cf8b8975 | 73 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
74 | return cd; |
75 | } | |
76 | ||
1da177e4 LT |
77 | static void ide_cd_put(struct cdrom_info *cd) |
78 | { | |
d3e33ff5 BZ |
79 | ide_drive_t *drive = cd->drive; |
80 | ||
cf8b8975 | 81 | mutex_lock(&idecd_ref_mutex); |
8fed4368 | 82 | put_device(&cd->dev); |
d3e33ff5 | 83 | ide_device_put(drive); |
cf8b8975 | 84 | mutex_unlock(&idecd_ref_mutex); |
1da177e4 LT |
85 | } |
86 | ||
5a3ea3b4 | 87 | /* |
1da177e4 LT |
88 | * Generic packet command support and error handling routines. |
89 | */ | |
90 | ||
5a3ea3b4 | 91 | /* Mark that we've seen a media change and invalidate our internal buffers. */ |
9ce70fb2 | 92 | static void cdrom_saw_media_change(ide_drive_t *drive) |
1da177e4 | 93 | { |
fe11edfa | 94 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
570f89ea | 95 | drive->atapi_flags &= ~IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
96 | } |
97 | ||
98 | static int cdrom_log_sense(ide_drive_t *drive, struct request *rq, | |
99 | struct request_sense *sense) | |
100 | { | |
101 | int log = 0; | |
102 | ||
fc8323f7 BP |
103 | ide_debug_log(IDE_DBG_SENSE, "Call %s, sense_key: 0x%x\n", __func__, |
104 | sense->sense_key); | |
105 | ||
4aff5e23 | 106 | if (!sense || !rq || (rq->cmd_flags & REQ_QUIET)) |
1da177e4 LT |
107 | return 0; |
108 | ||
109 | switch (sense->sense_key) { | |
9ce70fb2 PC |
110 | case NO_SENSE: |
111 | case RECOVERED_ERROR: | |
112 | break; | |
113 | case NOT_READY: | |
114 | /* | |
5a3ea3b4 BP |
115 | * don't care about tray state messages for e.g. capacity |
116 | * commands or in-progress or becoming ready | |
9ce70fb2 PC |
117 | */ |
118 | if (sense->asc == 0x3a || sense->asc == 0x04) | |
1da177e4 | 119 | break; |
9ce70fb2 PC |
120 | log = 1; |
121 | break; | |
122 | case ILLEGAL_REQUEST: | |
123 | /* | |
5a3ea3b4 BP |
124 | * don't log START_STOP unit with LoEj set, since we cannot |
125 | * reliably check if drive can auto-close | |
9ce70fb2 PC |
126 | */ |
127 | if (rq->cmd[0] == GPCMD_START_STOP_UNIT && sense->asc == 0x24) | |
1da177e4 | 128 | break; |
9ce70fb2 PC |
129 | log = 1; |
130 | break; | |
131 | case UNIT_ATTENTION: | |
132 | /* | |
5a3ea3b4 BP |
133 | * Make good and sure we've seen this potential media change. |
134 | * Some drives (i.e. Creative) fail to present the correct sense | |
135 | * key in the error register. | |
9ce70fb2 PC |
136 | */ |
137 | cdrom_saw_media_change(drive); | |
138 | break; | |
139 | default: | |
140 | log = 1; | |
141 | break; | |
1da177e4 LT |
142 | } |
143 | return log; | |
144 | } | |
145 | ||
e5e076a3 | 146 | static void cdrom_analyze_sense_data(ide_drive_t *drive, |
1da177e4 LT |
147 | struct request *failed_command, |
148 | struct request_sense *sense) | |
149 | { | |
dbe217af AC |
150 | unsigned long sector; |
151 | unsigned long bio_sectors; | |
dbe217af AC |
152 | struct cdrom_info *info = drive->driver_data; |
153 | ||
fc8323f7 BP |
154 | ide_debug_log(IDE_DBG_SENSE, "Call %s, error_code: 0x%x, " |
155 | "sense_key: 0x%x\n", __func__, sense->error_code, | |
156 | sense->sense_key); | |
157 | ||
158 | if (failed_command) | |
159 | ide_debug_log(IDE_DBG_SENSE, "%s: failed cmd: 0x%x\n", | |
160 | __func__, failed_command->cmd[0]); | |
161 | ||
1da177e4 LT |
162 | if (!cdrom_log_sense(drive, failed_command, sense)) |
163 | return; | |
164 | ||
165 | /* | |
5a3ea3b4 BP |
166 | * If a read toc is executed for a CD-R or CD-RW medium where the first |
167 | * toc has not been recorded yet, it will fail with 05/24/00 (which is a | |
168 | * confusing error) | |
1da177e4 LT |
169 | */ |
170 | if (failed_command && failed_command->cmd[0] == GPCMD_READ_TOC_PMA_ATIP) | |
171 | if (sense->sense_key == 0x05 && sense->asc == 0x24) | |
172 | return; | |
173 | ||
5a3ea3b4 BP |
174 | /* current error */ |
175 | if (sense->error_code == 0x70) { | |
9ce70fb2 | 176 | switch (sense->sense_key) { |
dbe217af AC |
177 | case MEDIUM_ERROR: |
178 | case VOLUME_OVERFLOW: | |
179 | case ILLEGAL_REQUEST: | |
180 | if (!sense->valid) | |
181 | break; | |
182 | if (failed_command == NULL || | |
183 | !blk_fs_request(failed_command)) | |
184 | break; | |
185 | sector = (sense->information[0] << 24) | | |
186 | (sense->information[1] << 16) | | |
187 | (sense->information[2] << 8) | | |
188 | (sense->information[3]); | |
189 | ||
dbe217af | 190 | if (drive->queue->hardsect_size == 2048) |
5a3ea3b4 BP |
191 | /* device sector size is 2K */ |
192 | sector <<= 2; | |
eee49298 RK |
193 | |
194 | bio_sectors = max(bio_sectors(failed_command->bio), 4U); | |
9ce70fb2 | 195 | sector &= ~(bio_sectors - 1); |
dbe217af | 196 | |
d3dd7107 BZ |
197 | /* |
198 | * The SCSI specification allows for the value | |
199 | * returned by READ CAPACITY to be up to 75 2K | |
200 | * sectors past the last readable block. | |
201 | * Therefore, if we hit a medium error within the | |
202 | * last 75 2K sectors, we decrease the saved size | |
203 | * value. | |
204 | */ | |
dbe217af | 205 | if (sector < get_capacity(info->disk) && |
e5e076a3 | 206 | drive->probed_capacity - sector < 4 * 75) |
dbe217af | 207 | set_capacity(info->disk, sector); |
9ce70fb2 PC |
208 | } |
209 | } | |
1da177e4 | 210 | |
972560fb | 211 | ide_cd_log_error(drive->name, failed_command, sense); |
1da177e4 LT |
212 | } |
213 | ||
1da177e4 LT |
214 | static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, |
215 | struct request *failed_command) | |
216 | { | |
217 | struct cdrom_info *info = drive->driver_data; | |
218 | struct request *rq = &info->request_sense_request; | |
219 | ||
fc8323f7 BP |
220 | ide_debug_log(IDE_DBG_SENSE, "Call %s\n", __func__); |
221 | ||
1da177e4 LT |
222 | if (sense == NULL) |
223 | sense = &info->sense_data; | |
224 | ||
225 | /* stuff the sense request in front of our current request */ | |
ed820f19 FT |
226 | blk_rq_init(NULL, rq); |
227 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
228 | rq->rq_disk = info->disk; | |
1da177e4 LT |
229 | |
230 | rq->data = sense; | |
231 | rq->cmd[0] = GPCMD_REQUEST_SENSE; | |
e5e076a3 BP |
232 | rq->cmd[4] = 18; |
233 | rq->data_len = 18; | |
1da177e4 | 234 | |
4aff5e23 | 235 | rq->cmd_type = REQ_TYPE_SENSE; |
e8a96aa7 | 236 | rq->cmd_flags |= REQ_PREEMPT; |
1da177e4 LT |
237 | |
238 | /* NOTE! Save the failed command in "rq->buffer" */ | |
239 | rq->buffer = (void *) failed_command; | |
240 | ||
fc8323f7 BP |
241 | if (failed_command) |
242 | ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x\n", | |
243 | failed_command->cmd[0]); | |
244 | ||
18660823 BZ |
245 | drive->hwif->rq = NULL; |
246 | ||
247 | elv_add_request(drive->queue, rq, ELEVATOR_INSERT_FRONT, 0); | |
1da177e4 LT |
248 | } |
249 | ||
9ce70fb2 | 250 | static void cdrom_end_request(ide_drive_t *drive, int uptodate) |
1da177e4 | 251 | { |
b65fac32 | 252 | struct request *rq = drive->hwif->rq; |
1da177e4 LT |
253 | int nsectors = rq->hard_cur_sectors; |
254 | ||
fc8323f7 BP |
255 | ide_debug_log(IDE_DBG_FUNC, "Call %s, cmd: 0x%x, uptodate: 0x%x, " |
256 | "nsectors: %d\n", __func__, rq->cmd[0], uptodate, | |
257 | nsectors); | |
258 | ||
4aff5e23 | 259 | if (blk_sense_request(rq) && uptodate) { |
1da177e4 | 260 | /* |
4aff5e23 JA |
261 | * For REQ_TYPE_SENSE, "rq->buffer" points to the original |
262 | * failed request | |
1da177e4 LT |
263 | */ |
264 | struct request *failed = (struct request *) rq->buffer; | |
265 | struct cdrom_info *info = drive->driver_data; | |
266 | void *sense = &info->sense_data; | |
1da177e4 LT |
267 | |
268 | if (failed) { | |
269 | if (failed->sense) { | |
270 | sense = failed->sense; | |
271 | failed->sense_len = rq->sense_len; | |
272 | } | |
dbe217af | 273 | cdrom_analyze_sense_data(drive, failed, sense); |
1da177e4 | 274 | /* |
5a3ea3b4 | 275 | * now end the failed request |
1da177e4 | 276 | */ |
dbe217af AC |
277 | if (blk_fs_request(failed)) { |
278 | if (ide_end_dequeued_request(drive, failed, 0, | |
279 | failed->hard_nr_sectors)) | |
280 | BUG(); | |
281 | } else { | |
3c8a2cce BZ |
282 | if (blk_end_request(failed, -EIO, |
283 | failed->data_len)) | |
5e36bb6e | 284 | BUG(); |
dbe217af AC |
285 | } |
286 | } else | |
287 | cdrom_analyze_sense_data(drive, NULL, sense); | |
1da177e4 LT |
288 | } |
289 | ||
290 | if (!rq->current_nr_sectors && blk_fs_request(rq)) | |
291 | uptodate = 1; | |
292 | /* make sure it's fully ended */ | |
293 | if (blk_pc_request(rq)) | |
294 | nsectors = (rq->data_len + 511) >> 9; | |
295 | if (!nsectors) | |
296 | nsectors = 1; | |
297 | ||
fc8323f7 BP |
298 | ide_debug_log(IDE_DBG_FUNC, "Exit %s, uptodate: 0x%x, nsectors: %d\n", |
299 | __func__, uptodate, nsectors); | |
300 | ||
1da177e4 LT |
301 | ide_end_request(drive, uptodate, nsectors); |
302 | } | |
303 | ||
83c8565d | 304 | static void ide_dump_status_no_sense(ide_drive_t *drive, const char *msg, u8 st) |
dbe217af | 305 | { |
83c8565d | 306 | if (st & 0x80) |
dbe217af | 307 | return; |
83c8565d | 308 | ide_dump_status(drive, msg, st); |
dbe217af AC |
309 | } |
310 | ||
5a3ea3b4 BP |
311 | /* |
312 | * Returns: | |
313 | * 0: if the request should be continued. | |
314 | * 1: if the request was ended. | |
315 | */ | |
1da177e4 LT |
316 | static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) |
317 | { | |
b73c7ee2 | 318 | ide_hwif_t *hwif = drive->hwif; |
b65fac32 | 319 | struct request *rq = hwif->rq; |
1da177e4 | 320 | int stat, err, sense_key; |
9ce70fb2 | 321 | |
5a3ea3b4 | 322 | /* check for errors */ |
374e042c | 323 | stat = hwif->tp_ops->read_status(hwif); |
c47137a9 | 324 | |
1da177e4 LT |
325 | if (stat_ret) |
326 | *stat_ret = stat; | |
327 | ||
328 | if (OK_STAT(stat, good_stat, BAD_R_STAT)) | |
329 | return 0; | |
330 | ||
5a3ea3b4 | 331 | /* get the IDE error register */ |
64a57fe4 | 332 | err = ide_read_error(drive); |
1da177e4 LT |
333 | sense_key = err >> 4; |
334 | ||
335 | if (rq == NULL) { | |
fc8323f7 | 336 | printk(KERN_ERR PFX "%s: missing rq in %s\n", |
e5e076a3 | 337 | drive->name, __func__); |
1da177e4 LT |
338 | return 1; |
339 | } | |
340 | ||
fc8323f7 | 341 | ide_debug_log(IDE_DBG_RQ, "%s: stat: 0x%x, good_stat: 0x%x, " |
71b429ca BP |
342 | "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x, err: 0x%x\n", |
343 | __func__, stat, good_stat, rq->cmd[0], rq->cmd_type, err); | |
fc8323f7 | 344 | |
4aff5e23 | 345 | if (blk_sense_request(rq)) { |
5a3ea3b4 BP |
346 | /* |
347 | * We got an error trying to get sense info from the drive | |
348 | * (probably while trying to recover from a former error). | |
349 | * Just give up. | |
350 | */ | |
4aff5e23 | 351 | rq->cmd_flags |= REQ_FAILED; |
1da177e4 LT |
352 | cdrom_end_request(drive, 0); |
353 | ide_error(drive, "request sense failure", stat); | |
354 | return 1; | |
355 | ||
8770c018 | 356 | } else if (blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) { |
1da177e4 | 357 | /* All other functions, except for READ. */ |
1da177e4 LT |
358 | |
359 | /* | |
360 | * if we have an error, pass back CHECK_CONDITION as the | |
361 | * scsi status byte | |
362 | */ | |
b7156731 | 363 | if (blk_pc_request(rq) && !rq->errors) |
1da177e4 LT |
364 | rq->errors = SAM_STAT_CHECK_CONDITION; |
365 | ||
5a3ea3b4 | 366 | /* check for tray open */ |
1da177e4 | 367 | if (sense_key == NOT_READY) { |
9ce70fb2 | 368 | cdrom_saw_media_change(drive); |
1da177e4 | 369 | } else if (sense_key == UNIT_ATTENTION) { |
5a3ea3b4 | 370 | /* check for media change */ |
9ce70fb2 | 371 | cdrom_saw_media_change(drive); |
1da177e4 | 372 | return 0; |
9ce70fb2 PC |
373 | } else if (sense_key == ILLEGAL_REQUEST && |
374 | rq->cmd[0] == GPCMD_START_STOP_UNIT) { | |
375 | /* | |
376 | * Don't print error message for this condition-- | |
377 | * SFF8090i indicates that 5/24/00 is the correct | |
378 | * response to a request to close the tray if the | |
379 | * drive doesn't have that capability. | |
380 | * cdrom_log_sense() knows this! | |
381 | */ | |
4aff5e23 | 382 | } else if (!(rq->cmd_flags & REQ_QUIET)) { |
5a3ea3b4 | 383 | /* otherwise, print an error */ |
1da177e4 LT |
384 | ide_dump_status(drive, "packet command error", stat); |
385 | } | |
9ce70fb2 | 386 | |
4aff5e23 | 387 | rq->cmd_flags |= REQ_FAILED; |
1da177e4 LT |
388 | |
389 | /* | |
390 | * instead of playing games with moving completions around, | |
391 | * remove failed request completely and end it when the | |
392 | * request sense has completed | |
393 | */ | |
bbb89e3d | 394 | goto end_request; |
1da177e4 LT |
395 | |
396 | } else if (blk_fs_request(rq)) { | |
397 | int do_end_request = 0; | |
398 | ||
5a3ea3b4 | 399 | /* handle errors from READ and WRITE requests */ |
1da177e4 LT |
400 | |
401 | if (blk_noretry_request(rq)) | |
402 | do_end_request = 1; | |
403 | ||
404 | if (sense_key == NOT_READY) { | |
5a3ea3b4 | 405 | /* tray open */ |
1da177e4 | 406 | if (rq_data_dir(rq) == READ) { |
9ce70fb2 | 407 | cdrom_saw_media_change(drive); |
1da177e4 | 408 | |
5a3ea3b4 | 409 | /* fail the request */ |
fc8323f7 BP |
410 | printk(KERN_ERR PFX "%s: tray open\n", |
411 | drive->name); | |
1da177e4 LT |
412 | do_end_request = 1; |
413 | } else { | |
414 | struct cdrom_info *info = drive->driver_data; | |
415 | ||
5a3ea3b4 BP |
416 | /* |
417 | * Allow the drive 5 seconds to recover, some | |
1da177e4 | 418 | * devices will return this error while flushing |
5a3ea3b4 BP |
419 | * data from cache. |
420 | */ | |
1da177e4 | 421 | if (!rq->errors) |
83c8565d BP |
422 | info->write_timeout = jiffies + |
423 | ATAPI_WAIT_WRITE_BUSY; | |
1da177e4 LT |
424 | rq->errors = 1; |
425 | if (time_after(jiffies, info->write_timeout)) | |
426 | do_end_request = 1; | |
427 | else { | |
6ea52226 | 428 | struct request_queue *q = drive->queue; |
1da177e4 LT |
429 | unsigned long flags; |
430 | ||
431 | /* | |
5a3ea3b4 BP |
432 | * take a breather relying on the unplug |
433 | * timer to kick us again | |
1da177e4 | 434 | */ |
6ea52226 BZ |
435 | spin_lock_irqsave(q->queue_lock, flags); |
436 | blk_plug_device(q); | |
437 | spin_unlock_irqrestore(q->queue_lock, flags); | |
438 | ||
1da177e4 LT |
439 | return 1; |
440 | } | |
441 | } | |
442 | } else if (sense_key == UNIT_ATTENTION) { | |
5a3ea3b4 | 443 | /* media change */ |
e5e076a3 | 444 | cdrom_saw_media_change(drive); |
1da177e4 | 445 | |
9ce70fb2 | 446 | /* |
5a3ea3b4 BP |
447 | * Arrange to retry the request but be sure to give up |
448 | * if we've retried too many times. | |
9ce70fb2 | 449 | */ |
1da177e4 LT |
450 | if (++rq->errors > ERROR_MAX) |
451 | do_end_request = 1; | |
452 | } else if (sense_key == ILLEGAL_REQUEST || | |
453 | sense_key == DATA_PROTECT) { | |
9ce70fb2 | 454 | /* |
5a3ea3b4 BP |
455 | * No point in retrying after an illegal request or data |
456 | * protect error. | |
9ce70fb2 PC |
457 | */ |
458 | ide_dump_status_no_sense(drive, "command error", stat); | |
1da177e4 LT |
459 | do_end_request = 1; |
460 | } else if (sense_key == MEDIUM_ERROR) { | |
9ce70fb2 PC |
461 | /* |
462 | * No point in re-trying a zillion times on a bad | |
5a3ea3b4 | 463 | * sector. If we got here the error is not correctable. |
9ce70fb2 | 464 | */ |
83c8565d BP |
465 | ide_dump_status_no_sense(drive, |
466 | "media error (bad sector)", | |
467 | stat); | |
1da177e4 LT |
468 | do_end_request = 1; |
469 | } else if (sense_key == BLANK_CHECK) { | |
5a3ea3b4 | 470 | /* disk appears blank ?? */ |
83c8565d BP |
471 | ide_dump_status_no_sense(drive, "media error (blank)", |
472 | stat); | |
1da177e4 | 473 | do_end_request = 1; |
3a7d2484 | 474 | } else if ((err & ~ATA_ABORTED) != 0) { |
5a3ea3b4 | 475 | /* go to the default handler for other errors */ |
1da177e4 LT |
476 | ide_error(drive, "cdrom_decode_status", stat); |
477 | return 1; | |
478 | } else if ((++rq->errors > ERROR_MAX)) { | |
5a3ea3b4 | 479 | /* we've racked up too many retries, abort */ |
1da177e4 LT |
480 | do_end_request = 1; |
481 | } | |
482 | ||
5a3ea3b4 BP |
483 | /* |
484 | * End a request through request sense analysis when we have | |
485 | * sense data. We need this in order to perform end of media | |
486 | * processing. | |
487 | */ | |
bbb89e3d BZ |
488 | if (do_end_request) |
489 | goto end_request; | |
dbe217af | 490 | |
bbb89e3d | 491 | /* |
5a3ea3b4 BP |
492 | * If we got a CHECK_CONDITION status, queue |
493 | * a request sense command. | |
bbb89e3d | 494 | */ |
3a7d2484 | 495 | if (stat & ATA_ERR) |
bbb89e3d | 496 | cdrom_queue_request_sense(drive, NULL, NULL); |
1da177e4 | 497 | } else { |
fc8323f7 | 498 | blk_dump_rq_flags(rq, PFX "bad rq"); |
1da177e4 LT |
499 | cdrom_end_request(drive, 0); |
500 | } | |
501 | ||
5a3ea3b4 | 502 | /* retry, or handle the next request */ |
1da177e4 | 503 | return 1; |
bbb89e3d BZ |
504 | |
505 | end_request: | |
3a7d2484 | 506 | if (stat & ATA_ERR) { |
6ea52226 | 507 | struct request_queue *q = drive->queue; |
bbb89e3d BZ |
508 | unsigned long flags; |
509 | ||
6ea52226 | 510 | spin_lock_irqsave(q->queue_lock, flags); |
bbb89e3d | 511 | blkdev_dequeue_request(rq); |
6ea52226 | 512 | spin_unlock_irqrestore(q->queue_lock, flags); |
bbb89e3d | 513 | |
b65fac32 | 514 | hwif->rq = NULL; |
1d0bf587 | 515 | |
bbb89e3d BZ |
516 | cdrom_queue_request_sense(drive, rq->sense, rq); |
517 | } else | |
518 | cdrom_end_request(drive, 0); | |
519 | ||
520 | return 1; | |
1da177e4 LT |
521 | } |
522 | ||
1da177e4 LT |
523 | /* |
524 | * Check the contents of the interrupt reason register from the cdrom | |
525 | * and attempt to recover if there are problems. Returns 0 if everything's | |
526 | * ok; nonzero if the request has been terminated. | |
527 | */ | |
9f10d9ee BZ |
528 | static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, |
529 | int len, int ireason, int rw) | |
1da177e4 | 530 | { |
b73c7ee2 BZ |
531 | ide_hwif_t *hwif = drive->hwif; |
532 | ||
fc8323f7 BP |
533 | ide_debug_log(IDE_DBG_FUNC, "Call %s, ireason: 0x%x, rw: 0x%x\n", |
534 | __func__, ireason, rw); | |
535 | ||
0d6f7e3a BZ |
536 | /* |
537 | * ireason == 0: the drive wants to receive data from us | |
538 | * ireason == 2: the drive is expecting to transfer data to us | |
539 | */ | |
540 | if (ireason == (!rw << 1)) | |
1da177e4 | 541 | return 0; |
0d6f7e3a | 542 | else if (ireason == (rw << 1)) { |
5a5222d9 | 543 | |
5a3ea3b4 | 544 | /* whoops... */ |
fc8323f7 | 545 | printk(KERN_ERR PFX "%s: %s: wrong transfer direction!\n", |
177773ed | 546 | drive->name, __func__); |
1da177e4 | 547 | |
ae8789f0 | 548 | ide_pad_transfer(drive, rw, len); |
0d6f7e3a | 549 | } else if (rw == 0 && ireason == 1) { |
5a3ea3b4 BP |
550 | /* |
551 | * Some drives (ASUS) seem to tell us that status info is | |
552 | * available. Just get it and ignore. | |
1da177e4 | 553 | */ |
374e042c | 554 | (void)hwif->tp_ops->read_status(hwif); |
1da177e4 LT |
555 | return 0; |
556 | } else { | |
5a3ea3b4 | 557 | /* drive wants a command packet, or invalid ireason... */ |
fc8323f7 | 558 | printk(KERN_ERR PFX "%s: %s: bad interrupt reason 0x%02x\n", |
177773ed | 559 | drive->name, __func__, ireason); |
1da177e4 LT |
560 | } |
561 | ||
9f10d9ee BZ |
562 | if (rq->cmd_type == REQ_TYPE_ATA_PC) |
563 | rq->cmd_flags |= REQ_FAILED; | |
564 | ||
1da177e4 LT |
565 | cdrom_end_request(drive, 0); |
566 | return -1; | |
567 | } | |
568 | ||
64814f23 BZ |
569 | /* |
570 | * Assume that the drive will always provide data in multiples of at least | |
571 | * SECTOR_SIZE, as it gets hairy to keep track of the transfers otherwise. | |
572 | */ | |
573 | static int ide_cd_check_transfer_size(ide_drive_t *drive, int len) | |
574 | { | |
fc8323f7 BP |
575 | ide_debug_log(IDE_DBG_FUNC, "Call %s, len: %d\n", __func__, len); |
576 | ||
64814f23 BZ |
577 | if ((len % SECTOR_SIZE) == 0) |
578 | return 0; | |
579 | ||
fc8323f7 BP |
580 | printk(KERN_ERR PFX "%s: %s: Bad transfer size %d\n", drive->name, |
581 | __func__, len); | |
64814f23 | 582 | |
570f89ea | 583 | if (drive->atapi_flags & IDE_AFLAG_LIMIT_NFRAMES) |
fc8323f7 BP |
584 | printk(KERN_ERR PFX "This drive is not supported by this " |
585 | "version of the driver\n"); | |
64814f23 | 586 | else { |
fc8323f7 | 587 | printk(KERN_ERR PFX "Trying to limit transfer sizes\n"); |
570f89ea | 588 | drive->atapi_flags |= IDE_AFLAG_LIMIT_NFRAMES; |
64814f23 BZ |
589 | } |
590 | ||
591 | return 1; | |
592 | } | |
593 | ||
90eb808e BP |
594 | static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive, |
595 | struct request *rq) | |
1da177e4 | 596 | { |
fc8323f7 BP |
597 | ide_debug_log(IDE_DBG_RQ, "Call %s: rq->cmd_flags: 0x%x\n", __func__, |
598 | rq->cmd_flags); | |
599 | ||
29f3aaca BZ |
600 | if (rq_data_dir(rq) == READ) { |
601 | unsigned short sectors_per_frame = | |
602 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
603 | int nskip = rq->sector & (sectors_per_frame - 1); | |
1da177e4 | 604 | |
29f3aaca BZ |
605 | /* |
606 | * If the requested sector doesn't start on a frame boundary, | |
607 | * we must adjust the start of the transfer so that it does, | |
608 | * and remember to skip the first few sectors. | |
609 | * | |
610 | * If the rq->current_nr_sectors field is larger than the size | |
611 | * of the buffer, it will mean that we're to skip a number of | |
612 | * sectors equal to the amount by which rq->current_nr_sectors | |
613 | * is larger than the buffer size. | |
614 | */ | |
615 | if (nskip > 0) { | |
5a3ea3b4 | 616 | /* sanity check... */ |
29f3aaca BZ |
617 | if (rq->current_nr_sectors != |
618 | bio_cur_sectors(rq->bio)) { | |
fc8323f7 | 619 | printk(KERN_ERR PFX "%s: %s: buffer botch (%u)\n", |
177773ed | 620 | drive->name, __func__, |
29f3aaca BZ |
621 | rq->current_nr_sectors); |
622 | cdrom_end_request(drive, 0); | |
623 | return ide_stopped; | |
624 | } | |
625 | rq->current_nr_sectors += nskip; | |
1da177e4 | 626 | } |
1da177e4 | 627 | } |
fc8323f7 | 628 | |
5a3ea3b4 | 629 | /* set up the command */ |
1da177e4 LT |
630 | rq->timeout = ATAPI_WAIT_PC; |
631 | ||
90eb808e BP |
632 | return ide_started; |
633 | } | |
634 | ||
9ce70fb2 | 635 | /* |
5a3ea3b4 BP |
636 | * Fix up a possibly partially-processed request so that we can start it over |
637 | * entirely, or even put it back on the request queue. | |
9ce70fb2 | 638 | */ |
fc8323f7 | 639 | static void ide_cd_restore_request(ide_drive_t *drive, struct request *rq) |
1da177e4 | 640 | { |
fc8323f7 BP |
641 | |
642 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); | |
643 | ||
1da177e4 | 644 | if (rq->buffer != bio_data(rq->bio)) { |
83c8565d BP |
645 | sector_t n = |
646 | (rq->buffer - (char *)bio_data(rq->bio)) / SECTOR_SIZE; | |
1da177e4 LT |
647 | |
648 | rq->buffer = bio_data(rq->bio); | |
649 | rq->nr_sectors += n; | |
650 | rq->sector -= n; | |
651 | } | |
83c8565d BP |
652 | rq->current_nr_sectors = bio_cur_sectors(rq->bio); |
653 | rq->hard_cur_sectors = rq->current_nr_sectors; | |
1da177e4 LT |
654 | rq->hard_nr_sectors = rq->nr_sectors; |
655 | rq->hard_sector = rq->sector; | |
656 | rq->q->prep_rq_fn(rq->q, rq); | |
657 | } | |
658 | ||
fc8323f7 | 659 | static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct request *rq) |
8ee69f5a | 660 | { |
71b429ca BP |
661 | ide_debug_log(IDE_DBG_FUNC, "Call %s, rq->cmd[0]: 0x%x\n", |
662 | __func__, rq->cmd[0]); | |
fc8323f7 | 663 | |
8ee69f5a BZ |
664 | /* |
665 | * Some of the trailing request sense fields are optional, | |
666 | * and some drives don't send them. Sigh. | |
667 | */ | |
668 | if (rq->cmd[0] == GPCMD_REQUEST_SENSE && | |
669 | rq->data_len > 0 && rq->data_len <= 5) | |
670 | while (rq->data_len > 0) { | |
671 | *(u8 *)rq->data++ = 0; | |
672 | --rq->data_len; | |
673 | } | |
674 | } | |
675 | ||
5f828546 FT |
676 | int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, |
677 | int write, void *buffer, unsigned *bufflen, | |
678 | struct request_sense *sense, int timeout, | |
679 | unsigned int cmd_flags) | |
1da177e4 | 680 | { |
5f828546 FT |
681 | struct cdrom_info *info = drive->driver_data; |
682 | struct request_sense local_sense; | |
1da177e4 | 683 | int retries = 10; |
5f828546 | 684 | unsigned int flags = 0; |
1da177e4 | 685 | |
5f828546 FT |
686 | if (!sense) |
687 | sense = &local_sense; | |
1da177e4 | 688 | |
71b429ca | 689 | ide_debug_log(IDE_DBG_PC, "Call %s, cmd[0]: 0x%x, write: 0x%x, " |
fc8323f7 BP |
690 | "timeout: %d, cmd_flags: 0x%x\n", __func__, cmd[0], write, |
691 | timeout, cmd_flags); | |
692 | ||
5a3ea3b4 | 693 | /* start of retry loop */ |
1da177e4 | 694 | do { |
5f828546 | 695 | struct request *rq; |
1da177e4 | 696 | int error; |
1da177e4 | 697 | |
5f828546 FT |
698 | rq = blk_get_request(drive->queue, write, __GFP_WAIT); |
699 | ||
700 | memcpy(rq->cmd, cmd, BLK_MAX_CDB); | |
701 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
702 | rq->sense = sense; | |
703 | rq->cmd_flags |= cmd_flags; | |
704 | rq->timeout = timeout; | |
705 | if (buffer) { | |
706 | rq->data = buffer; | |
707 | rq->data_len = *bufflen; | |
708 | } | |
709 | ||
710 | error = blk_execute_rq(drive->queue, info->disk, rq, 0); | |
711 | ||
712 | if (buffer) | |
713 | *bufflen = rq->data_len; | |
714 | ||
715 | flags = rq->cmd_flags; | |
716 | blk_put_request(rq); | |
1da177e4 | 717 | |
5a3ea3b4 BP |
718 | /* |
719 | * FIXME: we should probably abort/retry or something in case of | |
720 | * failure. | |
721 | */ | |
5f828546 | 722 | if (flags & REQ_FAILED) { |
5a3ea3b4 BP |
723 | /* |
724 | * The request failed. Retry if it was due to a unit | |
725 | * attention status (usually means media was changed). | |
726 | */ | |
5f828546 | 727 | struct request_sense *reqbuf = sense; |
1da177e4 LT |
728 | |
729 | if (reqbuf->sense_key == UNIT_ATTENTION) | |
730 | cdrom_saw_media_change(drive); | |
731 | else if (reqbuf->sense_key == NOT_READY && | |
732 | reqbuf->asc == 4 && reqbuf->ascq != 4) { | |
5a3ea3b4 BP |
733 | /* |
734 | * The drive is in the process of loading | |
735 | * a disk. Retry, but wait a little to give | |
736 | * the drive time to complete the load. | |
737 | */ | |
1da177e4 LT |
738 | ssleep(2); |
739 | } else { | |
5a3ea3b4 | 740 | /* otherwise, don't retry */ |
1da177e4 LT |
741 | retries = 0; |
742 | } | |
743 | --retries; | |
744 | } | |
745 | ||
5a3ea3b4 | 746 | /* end of retry loop */ |
5f828546 | 747 | } while ((flags & REQ_FAILED) && retries >= 0); |
1da177e4 | 748 | |
5a3ea3b4 | 749 | /* return an error if the command failed */ |
5f828546 | 750 | return (flags & REQ_FAILED) ? -EIO : 0; |
1da177e4 LT |
751 | } |
752 | ||
aaa04c28 | 753 | /* |
5a3ea3b4 BP |
754 | * Called from blk_end_request_callback() after the data of the request is |
755 | * completed and before the request itself is completed. By returning value '1', | |
756 | * blk_end_request_callback() returns immediately without completing it. | |
aaa04c28 KU |
757 | */ |
758 | static int cdrom_newpc_intr_dummy_cb(struct request *rq) | |
759 | { | |
760 | return 1; | |
761 | } | |
762 | ||
1da177e4 LT |
763 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) |
764 | { | |
23579a2a | 765 | ide_hwif_t *hwif = drive->hwif; |
b65fac32 | 766 | struct request *rq = hwif->rq; |
1da177e4 | 767 | xfer_func_t *xferfunc; |
0041e7c6 | 768 | ide_expiry_t *expiry = NULL; |
1823649b | 769 | int dma_error = 0, dma, stat, thislen, uptodate = 0; |
ff1bfbc1 BZ |
770 | int write = (rq_data_dir(rq) == WRITE) ? 1 : 0; |
771 | unsigned int timeout; | |
1823649b BZ |
772 | u16 len; |
773 | u8 ireason; | |
1da177e4 | 774 | |
fc8323f7 BP |
775 | ide_debug_log(IDE_DBG_PC, "Call %s, rq->cmd[0]: 0x%x, write: 0x%x\n", |
776 | __func__, rq->cmd[0], write); | |
777 | ||
5a3ea3b4 | 778 | /* check for errors */ |
12469ac0 | 779 | dma = drive->dma; |
1da177e4 | 780 | if (dma) { |
12469ac0 | 781 | drive->dma = 0; |
5e37bdc0 | 782 | dma_error = hwif->dma_ops->dma_end(drive); |
eba15fba | 783 | if (dma_error) { |
fc8323f7 | 784 | printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name, |
ff1bfbc1 | 785 | write ? "write" : "read"); |
eba15fba BZ |
786 | ide_dma_off(drive); |
787 | } | |
1da177e4 LT |
788 | } |
789 | ||
790 | if (cdrom_decode_status(drive, 0, &stat)) | |
791 | return ide_stopped; | |
792 | ||
5a3ea3b4 | 793 | /* using dma, transfer is complete now */ |
1da177e4 | 794 | if (dma) { |
eba15fba | 795 | if (dma_error) |
1da177e4 | 796 | return ide_error(drive, "dma error", stat); |
0041e7c6 BZ |
797 | if (blk_fs_request(rq)) { |
798 | ide_end_request(drive, 1, rq->nr_sectors); | |
799 | return ide_stopped; | |
9e772d01 BP |
800 | } else if (rq->cmd_type == REQ_TYPE_ATA_PC && !rq->bio) { |
801 | ide_end_request(drive, 1, 1); | |
802 | return ide_stopped; | |
0041e7c6 | 803 | } |
ff1bfbc1 | 804 | goto end_request; |
1da177e4 LT |
805 | } |
806 | ||
1823649b | 807 | ide_read_bcount_and_ireason(drive, &len, &ireason); |
0041e7c6 BZ |
808 | |
809 | thislen = blk_fs_request(rq) ? len : rq->data_len; | |
1da177e4 LT |
810 | if (thislen > len) |
811 | thislen = len; | |
812 | ||
fc8323f7 BP |
813 | ide_debug_log(IDE_DBG_PC, "%s: DRQ: stat: 0x%x, thislen: %d\n", |
814 | __func__, stat, thislen); | |
815 | ||
5a3ea3b4 | 816 | /* If DRQ is clear, the command has completed. */ |
3a7d2484 | 817 | if ((stat & ATA_DRQ) == 0) { |
0041e7c6 BZ |
818 | if (blk_fs_request(rq)) { |
819 | /* | |
820 | * If we're not done reading/writing, complain. | |
821 | * Otherwise, complete the command normally. | |
822 | */ | |
823 | uptodate = 1; | |
824 | if (rq->current_nr_sectors > 0) { | |
fc8323f7 | 825 | printk(KERN_ERR PFX "%s: %s: data underrun " |
0041e7c6 | 826 | "(%d blocks)\n", |
177773ed | 827 | drive->name, __func__, |
0041e7c6 BZ |
828 | rq->current_nr_sectors); |
829 | if (!write) | |
830 | rq->cmd_flags |= REQ_FAILED; | |
831 | uptodate = 0; | |
832 | } | |
833 | cdrom_end_request(drive, uptodate); | |
834 | return ide_stopped; | |
835 | } else if (!blk_pc_request(rq)) { | |
fc8323f7 | 836 | ide_cd_request_sense_fixup(drive, rq); |
5a3ea3b4 | 837 | /* complain if we still have data left to transfer */ |
ff1bfbc1 BZ |
838 | uptodate = rq->data_len ? 0 : 1; |
839 | } | |
840 | goto end_request; | |
aaa04c28 | 841 | } |
1da177e4 | 842 | |
5a3ea3b4 | 843 | /* check which way to transfer data */ |
9f10d9ee BZ |
844 | if (ide_cd_check_ireason(drive, rq, len, ireason, write)) |
845 | return ide_stopped; | |
0041e7c6 | 846 | |
9f10d9ee BZ |
847 | if (blk_fs_request(rq)) { |
848 | if (write == 0) { | |
0041e7c6 BZ |
849 | int nskip; |
850 | ||
851 | if (ide_cd_check_transfer_size(drive, len)) { | |
852 | cdrom_end_request(drive, 0); | |
853 | return ide_stopped; | |
854 | } | |
855 | ||
856 | /* | |
857 | * First, figure out if we need to bit-bucket | |
858 | * any of the leading sectors. | |
859 | */ | |
860 | nskip = min_t(int, rq->current_nr_sectors | |
861 | - bio_cur_sectors(rq->bio), | |
862 | thislen >> 9); | |
863 | if (nskip > 0) { | |
ae8789f0 | 864 | ide_pad_transfer(drive, write, nskip << 9); |
0041e7c6 BZ |
865 | rq->current_nr_sectors -= nskip; |
866 | thislen -= (nskip << 9); | |
867 | } | |
868 | } | |
ff1bfbc1 | 869 | } |
1da177e4 | 870 | |
ff1bfbc1 BZ |
871 | if (ireason == 0) { |
872 | write = 1; | |
374e042c | 873 | xferfunc = hwif->tp_ops->output_data; |
9f10d9ee | 874 | } else { |
ff1bfbc1 | 875 | write = 0; |
374e042c | 876 | xferfunc = hwif->tp_ops->input_data; |
1da177e4 LT |
877 | } |
878 | ||
fc8323f7 BP |
879 | ide_debug_log(IDE_DBG_PC, "%s: data transfer, rq->cmd_type: 0x%x, " |
880 | "ireason: 0x%x\n", __func__, rq->cmd_type, ireason); | |
881 | ||
5a3ea3b4 | 882 | /* transfer data */ |
1da177e4 | 883 | while (thislen > 0) { |
0041e7c6 | 884 | u8 *ptr = blk_fs_request(rq) ? NULL : rq->data; |
a11e77db | 885 | int blen = rq->data_len; |
1da177e4 | 886 | |
5a3ea3b4 | 887 | /* bio backed? */ |
1da177e4 | 888 | if (rq->bio) { |
0041e7c6 BZ |
889 | if (blk_fs_request(rq)) { |
890 | ptr = rq->buffer; | |
891 | blen = rq->current_nr_sectors << 9; | |
892 | } else { | |
893 | ptr = bio_data(rq->bio); | |
894 | blen = bio_iovec(rq->bio)->bv_len; | |
895 | } | |
1da177e4 LT |
896 | } |
897 | ||
898 | if (!ptr) { | |
0041e7c6 BZ |
899 | if (blk_fs_request(rq) && !write) |
900 | /* | |
968c4964 | 901 | * If the buffers are full, pipe the rest into |
5a3ea3b4 BP |
902 | * oblivion. |
903 | */ | |
ae8789f0 | 904 | ide_pad_transfer(drive, 0, thislen); |
0041e7c6 | 905 | else { |
fc8323f7 | 906 | printk(KERN_ERR PFX "%s: confused, missing data\n", |
0041e7c6 BZ |
907 | drive->name); |
908 | blk_dump_rq_flags(rq, rq_data_dir(rq) | |
909 | ? "cdrom_newpc_intr, write" | |
910 | : "cdrom_newpc_intr, read"); | |
911 | } | |
1da177e4 LT |
912 | break; |
913 | } | |
914 | ||
915 | if (blen > thislen) | |
916 | blen = thislen; | |
917 | ||
9567b349 | 918 | xferfunc(drive, NULL, ptr, blen); |
1da177e4 LT |
919 | |
920 | thislen -= blen; | |
921 | len -= blen; | |
1da177e4 | 922 | |
0041e7c6 BZ |
923 | if (blk_fs_request(rq)) { |
924 | rq->buffer += blen; | |
925 | rq->nr_sectors -= (blen >> 9); | |
926 | rq->current_nr_sectors -= (blen >> 9); | |
927 | rq->sector += (blen >> 9); | |
928 | ||
929 | if (rq->current_nr_sectors == 0 && rq->nr_sectors) | |
930 | cdrom_end_request(drive, 1); | |
931 | } else { | |
932 | rq->data_len -= blen; | |
933 | ||
aaa04c28 KU |
934 | /* |
935 | * The request can't be completed until DRQ is cleared. | |
936 | * So complete the data, but don't complete the request | |
937 | * using the dummy function for the callback feature | |
938 | * of blk_end_request_callback(). | |
939 | */ | |
0041e7c6 BZ |
940 | if (rq->bio) |
941 | blk_end_request_callback(rq, 0, blen, | |
aaa04c28 | 942 | cdrom_newpc_intr_dummy_cb); |
0041e7c6 BZ |
943 | else |
944 | rq->data += blen; | |
945 | } | |
bcd88ac3 AS |
946 | if (!write && blk_sense_request(rq)) |
947 | rq->sense_len += blen; | |
1da177e4 LT |
948 | } |
949 | ||
5a3ea3b4 | 950 | /* pad, if necessary */ |
0041e7c6 | 951 | if (!blk_fs_request(rq) && len > 0) |
ae8789f0 | 952 | ide_pad_transfer(drive, write, len); |
1da177e4 | 953 | |
ff1bfbc1 BZ |
954 | if (blk_pc_request(rq)) { |
955 | timeout = rq->timeout; | |
ff1bfbc1 BZ |
956 | } else { |
957 | timeout = ATAPI_WAIT_PC; | |
0041e7c6 | 958 | if (!blk_fs_request(rq)) |
4cad085e | 959 | expiry = ide_cd_expiry; |
ff1bfbc1 BZ |
960 | } |
961 | ||
962 | ide_set_handler(drive, cdrom_newpc_intr, timeout, expiry); | |
1da177e4 | 963 | return ide_started; |
ff1bfbc1 BZ |
964 | |
965 | end_request: | |
966 | if (blk_pc_request(rq)) { | |
14e04c3f KU |
967 | unsigned int dlen = rq->data_len; |
968 | ||
969 | if (dma) | |
970 | rq->data_len = 0; | |
ff1bfbc1 | 971 | |
3c8a2cce | 972 | if (blk_end_request(rq, 0, dlen)) |
ff1bfbc1 | 973 | BUG(); |
1d0bf587 | 974 | |
b65fac32 | 975 | hwif->rq = NULL; |
ff1bfbc1 BZ |
976 | } else { |
977 | if (!uptodate) | |
978 | rq->cmd_flags |= REQ_FAILED; | |
979 | cdrom_end_request(drive, uptodate); | |
980 | } | |
981 | return ide_stopped; | |
1da177e4 LT |
982 | } |
983 | ||
21ea1f0f | 984 | static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) |
1da177e4 | 985 | { |
21ea1f0f BZ |
986 | struct cdrom_info *cd = drive->driver_data; |
987 | int write = rq_data_dir(rq) == WRITE; | |
988 | unsigned short sectors_per_frame = | |
989 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
1da177e4 | 990 | |
71b429ca BP |
991 | ide_debug_log(IDE_DBG_RQ, "Call %s, rq->cmd[0]: 0x%x, write: 0x%x, " |
992 | "secs_per_frame: %u\n", | |
993 | __func__, rq->cmd[0], write, sectors_per_frame); | |
fc8323f7 | 994 | |
21ea1f0f | 995 | if (write) { |
5a3ea3b4 | 996 | /* disk has become write protected */ |
b7db9956 | 997 | if (get_disk_ro(cd->disk)) { |
21ea1f0f BZ |
998 | cdrom_end_request(drive, 0); |
999 | return ide_stopped; | |
1000 | } | |
1001 | } else { | |
1002 | /* | |
1003 | * We may be retrying this request after an error. Fix up any | |
1004 | * weirdness which might be present in the request packet. | |
1005 | */ | |
fc8323f7 | 1006 | ide_cd_restore_request(drive, rq); |
1da177e4 LT |
1007 | } |
1008 | ||
5a3ea3b4 | 1009 | /* use DMA, if possible / writes *must* be hardware frame aligned */ |
21ea1f0f BZ |
1010 | if ((rq->nr_sectors & (sectors_per_frame - 1)) || |
1011 | (rq->sector & (sectors_per_frame - 1))) { | |
1012 | if (write) { | |
1013 | cdrom_end_request(drive, 0); | |
1014 | return ide_stopped; | |
1015 | } | |
12469ac0 | 1016 | drive->dma = 0; |
21ea1f0f | 1017 | } else |
12469ac0 | 1018 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
1da177e4 | 1019 | |
21ea1f0f BZ |
1020 | if (write) |
1021 | cd->devinfo.media_written = 1; | |
1da177e4 | 1022 | |
b6ca440a | 1023 | return ide_started; |
1da177e4 LT |
1024 | } |
1025 | ||
b6ca440a | 1026 | static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) |
1da177e4 | 1027 | { |
1da177e4 | 1028 | |
71b429ca BP |
1029 | ide_debug_log(IDE_DBG_PC, "Call %s, rq->cmd[0]: 0x%x, " |
1030 | "rq->cmd_type: 0x%x\n", __func__, rq->cmd[0], | |
fc8323f7 BP |
1031 | rq->cmd_type); |
1032 | ||
c9f56a80 BZ |
1033 | if (blk_pc_request(rq)) |
1034 | rq->cmd_flags |= REQ_QUIET; | |
1035 | else | |
1036 | rq->cmd_flags &= ~REQ_FAILED; | |
1da177e4 | 1037 | |
12469ac0 | 1038 | drive->dma = 0; |
1da177e4 | 1039 | |
5a3ea3b4 | 1040 | /* sg request */ |
e5318b53 FT |
1041 | if (rq->bio || ((rq->cmd_type == REQ_TYPE_ATA_PC) && rq->data_len)) { |
1042 | struct request_queue *q = drive->queue; | |
1043 | unsigned int alignment; | |
efa402d5 | 1044 | char *buf; |
1da177e4 | 1045 | |
e5318b53 | 1046 | if (rq->bio) |
efa402d5 | 1047 | buf = bio_data(rq->bio); |
e5318b53 | 1048 | else |
efa402d5 | 1049 | buf = rq->data; |
e5318b53 | 1050 | |
12469ac0 | 1051 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
1da177e4 LT |
1052 | |
1053 | /* | |
1054 | * check if dma is safe | |
5d9e4ea5 LT |
1055 | * |
1056 | * NOTE! The "len" and "addr" checks should possibly have | |
1057 | * separate masks. | |
1da177e4 | 1058 | */ |
e5318b53 | 1059 | alignment = queue_dma_alignment(q) | q->dma_pad_mask; |
9bd27cba BP |
1060 | if ((unsigned long)buf & alignment |
1061 | || rq->data_len & q->dma_pad_mask | |
efa402d5 | 1062 | || object_is_on_stack(buf)) |
12469ac0 | 1063 | drive->dma = 0; |
1da177e4 | 1064 | } |
1da177e4 LT |
1065 | } |
1066 | ||
99384aea | 1067 | static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, |
e5e076a3 | 1068 | sector_t block) |
1da177e4 | 1069 | { |
71b429ca BP |
1070 | ide_debug_log(IDE_DBG_RQ, "Call %s, rq->cmd[0]: 0x%x, " |
1071 | "rq->cmd_type: 0x%x, block: %llu\n", | |
1072 | __func__, rq->cmd[0], rq->cmd_type, | |
1073 | (unsigned long long)block); | |
fc8323f7 | 1074 | |
1da177e4 | 1075 | if (blk_fs_request(rq)) { |
27c01c2d BZ |
1076 | if (cdrom_start_rw(drive, rq) == ide_stopped) |
1077 | return ide_stopped; | |
90eb808e | 1078 | |
27c01c2d BZ |
1079 | if (ide_cd_prepare_rw_request(drive, rq) == ide_stopped) |
1080 | return ide_stopped; | |
c9f56a80 | 1081 | } else if (blk_sense_request(rq) || blk_pc_request(rq) || |
cea2885a | 1082 | rq->cmd_type == REQ_TYPE_ATA_PC) { |
7fcebda5 BP |
1083 | if (!rq->timeout) |
1084 | rq->timeout = ATAPI_WAIT_PC; | |
1085 | ||
b6ca440a | 1086 | cdrom_do_block_pc(drive, rq); |
4aff5e23 | 1087 | } else if (blk_special_request(rq)) { |
5a3ea3b4 | 1088 | /* right now this can only be a reset... */ |
1da177e4 LT |
1089 | cdrom_end_request(drive, 1); |
1090 | return ide_stopped; | |
ab9d6e33 | 1091 | } else { |
fc8323f7 | 1092 | blk_dump_rq_flags(rq, DRV_NAME " bad flags"); |
ab9d6e33 BP |
1093 | cdrom_end_request(drive, 0); |
1094 | return ide_stopped; | |
1da177e4 | 1095 | } |
b6ca440a | 1096 | |
d6251d44 | 1097 | return ide_issue_pc(drive); |
1da177e4 LT |
1098 | } |
1099 | ||
5a3ea3b4 | 1100 | /* |
1da177e4 LT |
1101 | * Ioctl handling. |
1102 | * | |
5a3ea3b4 BP |
1103 | * Routines which queue packet commands take as a final argument a pointer to a |
1104 | * request_sense struct. If execution of the command results in an error with a | |
1105 | * CHECK CONDITION status, this structure will be filled with the results of the | |
1106 | * subsequent request sense command. The pointer can also be NULL, in which case | |
1107 | * no sense information is returned. | |
1da177e4 | 1108 | */ |
e5e076a3 | 1109 | static void msf_from_bcd(struct atapi_msf *msf) |
1da177e4 | 1110 | { |
fc99856a AB |
1111 | msf->minute = bcd2bin(msf->minute); |
1112 | msf->second = bcd2bin(msf->second); | |
1113 | msf->frame = bcd2bin(msf->frame); | |
1da177e4 LT |
1114 | } |
1115 | ||
f9afd18b | 1116 | int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 | 1117 | { |
1da177e4 LT |
1118 | struct cdrom_info *info = drive->driver_data; |
1119 | struct cdrom_device_info *cdi = &info->devinfo; | |
5f828546 | 1120 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1121 | |
fc8323f7 BP |
1122 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1123 | ||
5f828546 FT |
1124 | memset(cmd, 0, BLK_MAX_CDB); |
1125 | cmd[0] = GPCMD_TEST_UNIT_READY; | |
1da177e4 | 1126 | |
cdf6000d | 1127 | /* |
5a3ea3b4 BP |
1128 | * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs |
1129 | * instead of supporting the LOAD_UNLOAD opcode. | |
cdf6000d | 1130 | */ |
5f828546 | 1131 | cmd[7] = cdi->sanyo_slot % 3; |
1da177e4 | 1132 | |
141d3b27 | 1133 | return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET); |
1da177e4 LT |
1134 | } |
1135 | ||
1da177e4 LT |
1136 | static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, |
1137 | unsigned long *sectors_per_frame, | |
1138 | struct request_sense *sense) | |
1139 | { | |
1140 | struct { | |
141d3b27 HH |
1141 | __be32 lba; |
1142 | __be32 blocklen; | |
1da177e4 LT |
1143 | } capbuf; |
1144 | ||
1145 | int stat; | |
5f828546 FT |
1146 | unsigned char cmd[BLK_MAX_CDB]; |
1147 | unsigned len = sizeof(capbuf); | |
938bb03d | 1148 | u32 blocklen; |
1da177e4 | 1149 | |
fc8323f7 BP |
1150 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1151 | ||
5f828546 FT |
1152 | memset(cmd, 0, BLK_MAX_CDB); |
1153 | cmd[0] = GPCMD_READ_CDVD_CAPACITY; | |
1da177e4 | 1154 | |
5f828546 FT |
1155 | stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, |
1156 | REQ_QUIET); | |
e8e7b9eb JA |
1157 | if (stat) |
1158 | return stat; | |
1159 | ||
1160 | /* | |
1161 | * Sanity check the given block size | |
1162 | */ | |
938bb03d PT |
1163 | blocklen = be32_to_cpu(capbuf.blocklen); |
1164 | switch (blocklen) { | |
1165 | case 512: | |
1166 | case 1024: | |
1167 | case 2048: | |
1168 | case 4096: | |
e8e7b9eb JA |
1169 | break; |
1170 | default: | |
fc8323f7 BP |
1171 | printk(KERN_ERR PFX "%s: weird block size %u\n", |
1172 | drive->name, blocklen); | |
1173 | printk(KERN_ERR PFX "%s: default to 2kb block size\n", | |
1174 | drive->name); | |
938bb03d | 1175 | blocklen = 2048; |
e8e7b9eb | 1176 | break; |
1da177e4 LT |
1177 | } |
1178 | ||
e8e7b9eb | 1179 | *capacity = 1 + be32_to_cpu(capbuf.lba); |
938bb03d | 1180 | *sectors_per_frame = blocklen >> SECTOR_BITS; |
71b429ca BP |
1181 | |
1182 | ide_debug_log(IDE_DBG_PROBE, "%s: cap: %lu, sectors_per_frame: %lu\n", | |
1183 | __func__, *capacity, *sectors_per_frame); | |
1184 | ||
e8e7b9eb | 1185 | return 0; |
1da177e4 LT |
1186 | } |
1187 | ||
1188 | static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, | |
1189 | int format, char *buf, int buflen, | |
1190 | struct request_sense *sense) | |
1191 | { | |
5f828546 | 1192 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1193 | |
fc8323f7 BP |
1194 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1195 | ||
5f828546 | 1196 | memset(cmd, 0, BLK_MAX_CDB); |
1da177e4 | 1197 | |
5f828546 FT |
1198 | cmd[0] = GPCMD_READ_TOC_PMA_ATIP; |
1199 | cmd[6] = trackno; | |
1200 | cmd[7] = (buflen >> 8); | |
1201 | cmd[8] = (buflen & 0xff); | |
1202 | cmd[9] = (format << 6); | |
1da177e4 LT |
1203 | |
1204 | if (msf_flag) | |
5f828546 | 1205 | cmd[1] = 2; |
1da177e4 | 1206 | |
5f828546 | 1207 | return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); |
1da177e4 LT |
1208 | } |
1209 | ||
1da177e4 | 1210 | /* Try to read the entire TOC for the disk into our internal buffer. */ |
17802998 | 1211 | int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 LT |
1212 | { |
1213 | int stat, ntracks, i; | |
1214 | struct cdrom_info *info = drive->driver_data; | |
1215 | struct cdrom_device_info *cdi = &info->devinfo; | |
1216 | struct atapi_toc *toc = info->toc; | |
1217 | struct { | |
1218 | struct atapi_toc_header hdr; | |
1219 | struct atapi_toc_entry ent; | |
1220 | } ms_tmp; | |
1221 | long last_written; | |
1222 | unsigned long sectors_per_frame = SECTORS_PER_FRAME; | |
1223 | ||
fc8323f7 BP |
1224 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1225 | ||
1da177e4 | 1226 | if (toc == NULL) { |
5a3ea3b4 | 1227 | /* try to allocate space */ |
2a91f3e5 | 1228 | toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); |
1da177e4 | 1229 | if (toc == NULL) { |
fc8323f7 | 1230 | printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n", |
83c8565d | 1231 | drive->name); |
1da177e4 LT |
1232 | return -ENOMEM; |
1233 | } | |
2a91f3e5 | 1234 | info->toc = toc; |
1da177e4 LT |
1235 | } |
1236 | ||
5a3ea3b4 BP |
1237 | /* |
1238 | * Check to see if the existing data is still valid. If it is, | |
1239 | * just return. | |
1240 | */ | |
1da177e4 LT |
1241 | (void) cdrom_check_status(drive, sense); |
1242 | ||
570f89ea | 1243 | if (drive->atapi_flags & IDE_AFLAG_TOC_VALID) |
1da177e4 LT |
1244 | return 0; |
1245 | ||
5a3ea3b4 | 1246 | /* try to get the total cdrom capacity and sector size */ |
1da177e4 LT |
1247 | stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame, |
1248 | sense); | |
1249 | if (stat) | |
1250 | toc->capacity = 0x1fffff; | |
1251 | ||
1252 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
5a3ea3b4 | 1253 | /* save a private copy of the TOC capacity for error handling */ |
dbe217af AC |
1254 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1255 | ||
1da177e4 LT |
1256 | blk_queue_hardsect_size(drive->queue, |
1257 | sectors_per_frame << SECTOR_BITS); | |
1258 | ||
5a3ea3b4 | 1259 | /* first read just the header, so we know how long the TOC is */ |
1da177e4 LT |
1260 | stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, |
1261 | sizeof(struct atapi_toc_header), sense); | |
2a91f3e5 JJ |
1262 | if (stat) |
1263 | return stat; | |
1da177e4 | 1264 | |
570f89ea | 1265 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1266 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1267 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1268 | } |
1da177e4 LT |
1269 | |
1270 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; | |
1271 | if (ntracks <= 0) | |
1272 | return -EIO; | |
1273 | if (ntracks > MAX_TRACKS) | |
1274 | ntracks = MAX_TRACKS; | |
1275 | ||
5a3ea3b4 | 1276 | /* now read the whole schmeer */ |
1da177e4 LT |
1277 | stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, |
1278 | (char *)&toc->hdr, | |
1279 | sizeof(struct atapi_toc_header) + | |
1280 | (ntracks + 1) * | |
1281 | sizeof(struct atapi_toc_entry), sense); | |
1282 | ||
1283 | if (stat && toc->hdr.first_track > 1) { | |
5a3ea3b4 BP |
1284 | /* |
1285 | * Cds with CDI tracks only don't have any TOC entries, despite | |
1286 | * of this the returned values are | |
1287 | * first_track == last_track = number of CDI tracks + 1, | |
1288 | * so that this case is indistinguishable from the same layout | |
1289 | * plus an additional audio track. If we get an error for the | |
1290 | * regular case, we assume a CDI without additional audio | |
1291 | * tracks. In this case the readable TOC is empty (CDI tracks | |
1292 | * are not included) and only holds the Leadout entry. | |
1293 | * | |
1294 | * Heiko Eißfeldt. | |
1295 | */ | |
1da177e4 LT |
1296 | ntracks = 0; |
1297 | stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, | |
1298 | (char *)&toc->hdr, | |
1299 | sizeof(struct atapi_toc_header) + | |
1300 | (ntracks + 1) * | |
1301 | sizeof(struct atapi_toc_entry), | |
1302 | sense); | |
cdf6000d | 1303 | if (stat) |
1da177e4 | 1304 | return stat; |
cdf6000d | 1305 | |
570f89ea | 1306 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1307 | toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT); |
1308 | toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT); | |
cdf6000d | 1309 | } else { |
1da177e4 LT |
1310 | toc->hdr.first_track = CDROM_LEADOUT; |
1311 | toc->hdr.last_track = CDROM_LEADOUT; | |
1312 | } | |
1313 | } | |
1314 | ||
1315 | if (stat) | |
1316 | return stat; | |
1317 | ||
7eb43fd2 | 1318 | toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); |
1da177e4 | 1319 | |
570f89ea | 1320 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1321 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1322 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1323 | } |
1da177e4 | 1324 | |
cdf6000d | 1325 | for (i = 0; i <= ntracks; i++) { |
570f89ea BP |
1326 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
1327 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) | |
fc99856a | 1328 | toc->ent[i].track = bcd2bin(toc->ent[i].track); |
1da177e4 LT |
1329 | msf_from_bcd(&toc->ent[i].addr.msf); |
1330 | } | |
9ce70fb2 PC |
1331 | toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, |
1332 | toc->ent[i].addr.msf.second, | |
1333 | toc->ent[i].addr.msf.frame); | |
1da177e4 LT |
1334 | } |
1335 | ||
1da177e4 | 1336 | if (toc->hdr.first_track != CDROM_LEADOUT) { |
5a3ea3b4 | 1337 | /* read the multisession information */ |
1da177e4 LT |
1338 | stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, |
1339 | sizeof(ms_tmp), sense); | |
2a91f3e5 JJ |
1340 | if (stat) |
1341 | return stat; | |
1da177e4 LT |
1342 | |
1343 | toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); | |
1344 | } else { | |
e5e076a3 BP |
1345 | ms_tmp.hdr.last_track = CDROM_LEADOUT; |
1346 | ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; | |
1da177e4 LT |
1347 | toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ |
1348 | } | |
1349 | ||
570f89ea | 1350 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
5a3ea3b4 | 1351 | /* re-read multisession information using MSF format */ |
1da177e4 LT |
1352 | stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, |
1353 | sizeof(ms_tmp), sense); | |
1354 | if (stat) | |
1355 | return stat; | |
1356 | ||
9ce70fb2 | 1357 | msf_from_bcd(&ms_tmp.ent.addr.msf); |
1da177e4 | 1358 | toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, |
9ce70fb2 | 1359 | ms_tmp.ent.addr.msf.second, |
1da177e4 LT |
1360 | ms_tmp.ent.addr.msf.frame); |
1361 | } | |
1da177e4 LT |
1362 | |
1363 | toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); | |
1364 | ||
5a3ea3b4 | 1365 | /* now try to get the total cdrom capacity */ |
1da177e4 LT |
1366 | stat = cdrom_get_last_written(cdi, &last_written); |
1367 | if (!stat && (last_written > toc->capacity)) { | |
1368 | toc->capacity = last_written; | |
1369 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
dbe217af | 1370 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1da177e4 LT |
1371 | } |
1372 | ||
1373 | /* Remember that we've read this stuff. */ | |
570f89ea | 1374 | drive->atapi_flags |= IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
1375 | |
1376 | return 0; | |
1377 | } | |
1378 | ||
17802998 | 1379 | int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) |
9235e68b EP |
1380 | { |
1381 | struct cdrom_info *info = drive->driver_data; | |
1382 | struct cdrom_device_info *cdi = &info->devinfo; | |
1383 | struct packet_command cgc; | |
455d80a9 | 1384 | int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; |
9235e68b | 1385 | |
fc8323f7 BP |
1386 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1387 | ||
570f89ea | 1388 | if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0) |
455d80a9 | 1389 | size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; |
9235e68b | 1390 | |
455d80a9 | 1391 | init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); |
5a3ea3b4 BP |
1392 | do { |
1393 | /* we seem to get stat=0x01,err=0x00 the first time (??) */ | |
9235e68b EP |
1394 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); |
1395 | if (!stat) | |
1396 | break; | |
1397 | } while (--attempts); | |
1398 | return stat; | |
1399 | } | |
1400 | ||
17802998 | 1401 | void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) |
9235e68b | 1402 | { |
4fe67178 | 1403 | struct cdrom_info *cd = drive->driver_data; |
481c8c64 BZ |
1404 | u16 curspeed, maxspeed; |
1405 | ||
fc8323f7 BP |
1406 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1407 | ||
570f89ea | 1408 | if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) { |
141d3b27 HH |
1409 | curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]); |
1410 | maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]); | |
9235e68b | 1411 | } else { |
141d3b27 HH |
1412 | curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]); |
1413 | maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]); | |
9235e68b | 1414 | } |
481c8c64 | 1415 | |
71b429ca BP |
1416 | ide_debug_log(IDE_DBG_PROBE, "%s: curspeed: %u, maxspeed: %u\n", |
1417 | __func__, curspeed, maxspeed); | |
1418 | ||
2bc4cf2d BZ |
1419 | cd->current_speed = (curspeed + (176/2)) / 176; |
1420 | cd->max_speed = (maxspeed + (176/2)) / 176; | |
9235e68b EP |
1421 | } |
1422 | ||
20e7f7ef BZ |
1423 | #define IDE_CD_CAPABILITIES \ |
1424 | (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ | |
1425 | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ | |
1426 | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ | |
1427 | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ | |
1428 | CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) | |
1da177e4 | 1429 | |
1da177e4 LT |
1430 | static struct cdrom_device_ops ide_cdrom_dops = { |
1431 | .open = ide_cdrom_open_real, | |
1432 | .release = ide_cdrom_release_real, | |
1433 | .drive_status = ide_cdrom_drive_status, | |
1434 | .media_changed = ide_cdrom_check_media_change_real, | |
1435 | .tray_move = ide_cdrom_tray_move, | |
1436 | .lock_door = ide_cdrom_lock_door, | |
1437 | .select_speed = ide_cdrom_select_speed, | |
1438 | .get_last_session = ide_cdrom_get_last_session, | |
1439 | .get_mcn = ide_cdrom_get_mcn, | |
1440 | .reset = ide_cdrom_reset, | |
1441 | .audio_ioctl = ide_cdrom_audio_ioctl, | |
20e7f7ef | 1442 | .capability = IDE_CD_CAPABILITIES, |
1da177e4 LT |
1443 | .generic_packet = ide_cdrom_packet, |
1444 | }; | |
1445 | ||
9ce70fb2 | 1446 | static int ide_cdrom_register(ide_drive_t *drive, int nslots) |
1da177e4 LT |
1447 | { |
1448 | struct cdrom_info *info = drive->driver_data; | |
1449 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1450 | ||
fc8323f7 BP |
1451 | ide_debug_log(IDE_DBG_PROBE, "Call %s, nslots: %d\n", __func__, nslots); |
1452 | ||
1da177e4 | 1453 | devinfo->ops = &ide_cdrom_dops; |
2bc4cf2d | 1454 | devinfo->speed = info->current_speed; |
1da177e4 | 1455 | devinfo->capacity = nslots; |
2a91f3e5 | 1456 | devinfo->handle = drive; |
1da177e4 | 1457 | strcpy(devinfo->name, drive->name); |
1da177e4 | 1458 | |
570f89ea | 1459 | if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT) |
3cbd814e BZ |
1460 | devinfo->mask |= CDC_SELECT_SPEED; |
1461 | ||
1da177e4 LT |
1462 | devinfo->disk = info->disk; |
1463 | return register_cdrom(devinfo); | |
1464 | } | |
1465 | ||
e5e076a3 | 1466 | static int ide_cdrom_probe_capabilities(ide_drive_t *drive) |
1da177e4 | 1467 | { |
4fe67178 BZ |
1468 | struct cdrom_info *cd = drive->driver_data; |
1469 | struct cdrom_device_info *cdi = &cd->devinfo; | |
455d80a9 BZ |
1470 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; |
1471 | mechtype_t mechtype; | |
1da177e4 LT |
1472 | int nslots = 1; |
1473 | ||
fc8323f7 BP |
1474 | ide_debug_log(IDE_DBG_PROBE, "Call %s, drive->media: 0x%x, " |
1475 | "drive->atapi_flags: 0x%lx\n", __func__, drive->media, | |
1476 | drive->atapi_flags); | |
1477 | ||
3f1b86d8 BZ |
1478 | cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | |
1479 | CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | | |
1480 | CDC_MO_DRIVE | CDC_RAM); | |
1481 | ||
1da177e4 | 1482 | if (drive->media == ide_optical) { |
3f1b86d8 | 1483 | cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); |
fc8323f7 | 1484 | printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n", |
83c8565d | 1485 | drive->name); |
1da177e4 LT |
1486 | return nslots; |
1487 | } | |
1488 | ||
570f89ea BP |
1489 | if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) { |
1490 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; | |
3f1b86d8 | 1491 | cdi->mask &= ~CDC_PLAY_AUDIO; |
1da177e4 LT |
1492 | return nslots; |
1493 | } | |
1494 | ||
1495 | /* | |
5a3ea3b4 BP |
1496 | * We have to cheat a little here. the packet will eventually be queued |
1497 | * with ide_cdrom_packet(), which extracts the drive from cdi->handle. | |
1498 | * Since this device hasn't been registered with the Uniform layer yet, | |
1499 | * it can't do this. Same goes for cdi->ops. | |
1da177e4 | 1500 | */ |
2a91f3e5 | 1501 | cdi->handle = drive; |
1da177e4 LT |
1502 | cdi->ops = &ide_cdrom_dops; |
1503 | ||
455d80a9 | 1504 | if (ide_cdrom_get_capabilities(drive, buf)) |
1da177e4 LT |
1505 | return 0; |
1506 | ||
455d80a9 | 1507 | if ((buf[8 + 6] & 0x01) == 0) |
42619d35 | 1508 | drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; |
455d80a9 | 1509 | if (buf[8 + 6] & 0x08) |
570f89ea | 1510 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; |
455d80a9 | 1511 | if (buf[8 + 3] & 0x01) |
3f1b86d8 | 1512 | cdi->mask &= ~CDC_CD_R; |
455d80a9 | 1513 | if (buf[8 + 3] & 0x02) |
3f1b86d8 | 1514 | cdi->mask &= ~(CDC_CD_RW | CDC_RAM); |
455d80a9 | 1515 | if (buf[8 + 2] & 0x38) |
3f1b86d8 | 1516 | cdi->mask &= ~CDC_DVD; |
455d80a9 | 1517 | if (buf[8 + 3] & 0x20) |
3f1b86d8 | 1518 | cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); |
455d80a9 | 1519 | if (buf[8 + 3] & 0x10) |
3f1b86d8 | 1520 | cdi->mask &= ~CDC_DVD_R; |
570f89ea | 1521 | if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK)) |
3f1b86d8 | 1522 | cdi->mask &= ~CDC_PLAY_AUDIO; |
455d80a9 BZ |
1523 | |
1524 | mechtype = buf[8 + 6] >> 5; | |
f20f2586 BP |
1525 | if (mechtype == mechtype_caddy || |
1526 | mechtype == mechtype_popup || | |
1527 | (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE)) | |
3f1b86d8 | 1528 | cdi->mask |= CDC_CLOSE_TRAY; |
1da177e4 | 1529 | |
1da177e4 | 1530 | if (cdi->sanyo_slot > 0) { |
3f1b86d8 | 1531 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 | 1532 | nslots = 3; |
cdf6000d BZ |
1533 | } else if (mechtype == mechtype_individual_changer || |
1534 | mechtype == mechtype_cartridge_changer) { | |
2609d06d BZ |
1535 | nslots = cdrom_number_of_slots(cdi); |
1536 | if (nslots > 1) | |
3f1b86d8 | 1537 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 LT |
1538 | } |
1539 | ||
455d80a9 | 1540 | ide_cdrom_update_speed(drive, buf); |
4fe67178 | 1541 | |
fc8323f7 | 1542 | printk(KERN_INFO PFX "%s: ATAPI", drive->name); |
4fe67178 BZ |
1543 | |
1544 | /* don't print speed if the drive reported 0 */ | |
2bc4cf2d BZ |
1545 | if (cd->max_speed) |
1546 | printk(KERN_CONT " %dX", cd->max_speed); | |
4fe67178 | 1547 | |
3f1b86d8 | 1548 | printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); |
1da177e4 | 1549 | |
3f1b86d8 BZ |
1550 | if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) |
1551 | printk(KERN_CONT " DVD%s%s", | |
1552 | (cdi->mask & CDC_DVD_R) ? "" : "-R", | |
419a5b67 | 1553 | (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM"); |
1da177e4 | 1554 | |
3f1b86d8 BZ |
1555 | if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) |
1556 | printk(KERN_CONT " CD%s%s", | |
1557 | (cdi->mask & CDC_CD_R) ? "" : "-R", | |
1558 | (cdi->mask & CDC_CD_RW) ? "" : "/RW"); | |
1da177e4 | 1559 | |
3f1b86d8 BZ |
1560 | if ((cdi->mask & CDC_SELECT_DISC) == 0) |
1561 | printk(KERN_CONT " changer w/%d slots", nslots); | |
1562 | else | |
1563 | printk(KERN_CONT " drive"); | |
1da177e4 | 1564 | |
fc8323f7 BP |
1565 | printk(KERN_CONT ", %dkB Cache\n", |
1566 | be16_to_cpup((__be16 *)&buf[8 + 12])); | |
1da177e4 LT |
1567 | |
1568 | return nslots; | |
1569 | } | |
1570 | ||
5a3ea3b4 | 1571 | /* standard prep_rq_fn that builds 10 byte cmds */ |
165125e1 | 1572 | static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) |
1da177e4 LT |
1573 | { |
1574 | int hard_sect = queue_hardsect_size(q); | |
1575 | long block = (long)rq->hard_sector / (hard_sect >> 9); | |
1576 | unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9); | |
1577 | ||
d34c87e4 | 1578 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
1579 | |
1580 | if (rq_data_dir(rq) == READ) | |
1581 | rq->cmd[0] = GPCMD_READ_10; | |
1582 | else | |
1583 | rq->cmd[0] = GPCMD_WRITE_10; | |
1584 | ||
1585 | /* | |
1586 | * fill in lba | |
1587 | */ | |
1588 | rq->cmd[2] = (block >> 24) & 0xff; | |
1589 | rq->cmd[3] = (block >> 16) & 0xff; | |
1590 | rq->cmd[4] = (block >> 8) & 0xff; | |
1591 | rq->cmd[5] = block & 0xff; | |
1592 | ||
1593 | /* | |
1594 | * and transfer length | |
1595 | */ | |
1596 | rq->cmd[7] = (blocks >> 8) & 0xff; | |
1597 | rq->cmd[8] = blocks & 0xff; | |
1598 | rq->cmd_len = 10; | |
1599 | return BLKPREP_OK; | |
1600 | } | |
1601 | ||
1602 | /* | |
1603 | * Most of the SCSI commands are supported directly by ATAPI devices. | |
1604 | * This transform handles the few exceptions. | |
1605 | */ | |
1606 | static int ide_cdrom_prep_pc(struct request *rq) | |
1607 | { | |
1608 | u8 *c = rq->cmd; | |
1609 | ||
5a3ea3b4 | 1610 | /* transform 6-byte read/write commands to the 10-byte version */ |
1da177e4 LT |
1611 | if (c[0] == READ_6 || c[0] == WRITE_6) { |
1612 | c[8] = c[4]; | |
1613 | c[5] = c[3]; | |
1614 | c[4] = c[2]; | |
1615 | c[3] = c[1] & 0x1f; | |
1616 | c[2] = 0; | |
1617 | c[1] &= 0xe0; | |
1618 | c[0] += (READ_10 - READ_6); | |
1619 | rq->cmd_len = 10; | |
1620 | return BLKPREP_OK; | |
1621 | } | |
1622 | ||
1623 | /* | |
1624 | * it's silly to pretend we understand 6-byte sense commands, just | |
1625 | * reject with ILLEGAL_REQUEST and the caller should take the | |
1626 | * appropriate action | |
1627 | */ | |
1628 | if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { | |
1629 | rq->errors = ILLEGAL_REQUEST; | |
1630 | return BLKPREP_KILL; | |
1631 | } | |
9ce70fb2 | 1632 | |
1da177e4 LT |
1633 | return BLKPREP_OK; |
1634 | } | |
1635 | ||
165125e1 | 1636 | static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) |
1da177e4 | 1637 | { |
4aff5e23 | 1638 | if (blk_fs_request(rq)) |
1da177e4 | 1639 | return ide_cdrom_prep_fs(q, rq); |
4aff5e23 | 1640 | else if (blk_pc_request(rq)) |
1da177e4 LT |
1641 | return ide_cdrom_prep_pc(rq); |
1642 | ||
1643 | return 0; | |
1644 | } | |
1645 | ||
e59724c7 BZ |
1646 | struct cd_list_entry { |
1647 | const char *id_model; | |
1648 | const char *id_firmware; | |
1649 | unsigned int cd_flags; | |
1650 | }; | |
1651 | ||
5e657a9e BP |
1652 | #ifdef CONFIG_IDE_PROC_FS |
1653 | static sector_t ide_cdrom_capacity(ide_drive_t *drive) | |
1654 | { | |
1655 | unsigned long capacity, sectors_per_frame; | |
1656 | ||
1657 | if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL)) | |
1658 | return 0; | |
1659 | ||
1660 | return capacity * sectors_per_frame; | |
1661 | } | |
1662 | ||
e5e076a3 BP |
1663 | static int proc_idecd_read_capacity(char *page, char **start, off_t off, |
1664 | int count, int *eof, void *data) | |
5e657a9e BP |
1665 | { |
1666 | ide_drive_t *drive = data; | |
1667 | int len; | |
1668 | ||
1669 | len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive)); | |
1670 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); | |
1671 | } | |
1672 | ||
1673 | static ide_proc_entry_t idecd_proc[] = { | |
1674 | { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL }, | |
1675 | { NULL, 0, NULL, NULL } | |
1676 | }; | |
1677 | ||
79cb3803 BZ |
1678 | static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive) |
1679 | { | |
1680 | return idecd_proc; | |
1681 | } | |
1682 | ||
1683 | static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive) | |
1684 | { | |
519d6808 | 1685 | return NULL; |
79cb3803 | 1686 | } |
5e657a9e BP |
1687 | #endif |
1688 | ||
e59724c7 BZ |
1689 | static const struct cd_list_entry ide_cd_quirks_list[] = { |
1690 | /* Limit transfer size per interrupt. */ | |
570f89ea BP |
1691 | { "SAMSUNG CD-ROM SCR-2430", NULL, IDE_AFLAG_LIMIT_NFRAMES }, |
1692 | { "SAMSUNG CD-ROM SCR-2432", NULL, IDE_AFLAG_LIMIT_NFRAMES }, | |
e59724c7 | 1693 | /* SCR-3231 doesn't support the SET_CD_SPEED command. */ |
570f89ea | 1694 | { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT }, |
e59724c7 | 1695 | /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ |
570f89ea BP |
1696 | { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD | |
1697 | IDE_AFLAG_PRE_ATAPI12, }, | |
e59724c7 | 1698 | /* Vertos 300, some versions of this drive like to talk BCD. */ |
570f89ea | 1699 | { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, }, |
e59724c7 | 1700 | /* Vertos 600 ESD. */ |
570f89ea | 1701 | { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, }, |
e59724c7 BZ |
1702 | /* |
1703 | * Sanyo 3 CD changer uses a non-standard command for CD changing | |
1704 | * (by default standard ATAPI support for CD changers is used). | |
1705 | */ | |
570f89ea BP |
1706 | { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD }, |
1707 | { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD }, | |
1708 | { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD }, | |
e59724c7 | 1709 | /* Stingray 8X CD-ROM. */ |
570f89ea | 1710 | { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 }, |
e59724c7 BZ |
1711 | /* |
1712 | * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length | |
1713 | * mode sense page capabilities size, but older drives break. | |
1714 | */ | |
570f89ea BP |
1715 | { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, |
1716 | { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, | |
e59724c7 | 1717 | /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ |
570f89ea | 1718 | { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS }, |
e59724c7 BZ |
1719 | /* |
1720 | * Some drives used by Apple don't advertise audio play | |
1721 | * but they do support reading TOC & audio datas. | |
1722 | */ | |
570f89ea BP |
1723 | { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
1724 | { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1725 | { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1726 | { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1727 | { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
f3e85ee7 | 1728 | { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
f20f2586 | 1729 | { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
64c2eae2 | 1730 | { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
e59724c7 BZ |
1731 | { NULL, NULL, 0 } |
1732 | }; | |
1733 | ||
4dde4492 | 1734 | static unsigned int ide_cd_flags(u16 *id) |
e59724c7 BZ |
1735 | { |
1736 | const struct cd_list_entry *cle = ide_cd_quirks_list; | |
1737 | ||
1738 | while (cle->id_model) { | |
4dde4492 | 1739 | if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 && |
e59724c7 | 1740 | (cle->id_firmware == NULL || |
4dde4492 | 1741 | strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware))) |
e59724c7 BZ |
1742 | return cle->cd_flags; |
1743 | cle++; | |
1744 | } | |
1745 | ||
1746 | return 0; | |
1747 | } | |
1748 | ||
e5e076a3 | 1749 | static int ide_cdrom_setup(ide_drive_t *drive) |
1da177e4 | 1750 | { |
4fe67178 BZ |
1751 | struct cdrom_info *cd = drive->driver_data; |
1752 | struct cdrom_device_info *cdi = &cd->devinfo; | |
4dde4492 BZ |
1753 | u16 *id = drive->id; |
1754 | char *fw_rev = (char *)&id[ATA_ID_FW_REV]; | |
1da177e4 LT |
1755 | int nslots; |
1756 | ||
fc8323f7 BP |
1757 | ide_debug_log(IDE_DBG_PROBE, "Call %s\n", __func__); |
1758 | ||
1da177e4 LT |
1759 | blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn); |
1760 | blk_queue_dma_alignment(drive->queue, 31); | |
e5318b53 | 1761 | blk_queue_update_dma_pad(drive->queue, 15); |
1da177e4 LT |
1762 | drive->queue->unplug_delay = (1 * HZ) / 1000; |
1763 | if (!drive->queue->unplug_delay) | |
1764 | drive->queue->unplug_delay = 1; | |
1765 | ||
fe11edfa BZ |
1766 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
1767 | drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id); | |
1da177e4 | 1768 | |
570f89ea | 1769 | if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) && |
4dde4492 | 1770 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1771 | drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD | |
1772 | IDE_AFLAG_TOCADDR_AS_BCD); | |
1773 | else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) && | |
4dde4492 | 1774 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1775 | drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD; |
1776 | else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD) | |
5a3ea3b4 BP |
1777 | /* 3 => use CD in slot 0 */ |
1778 | cdi->sanyo_slot = 3; | |
1da177e4 | 1779 | |
9ce70fb2 | 1780 | nslots = ide_cdrom_probe_capabilities(drive); |
1da177e4 | 1781 | |
5a3ea3b4 | 1782 | /* set correct block size */ |
1da177e4 LT |
1783 | blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE); |
1784 | ||
1da177e4 | 1785 | if (ide_cdrom_register(drive, nslots)) { |
fc8323f7 | 1786 | printk(KERN_ERR PFX "%s: %s failed to register device with the" |
83c8565d | 1787 | " cdrom driver.\n", drive->name, __func__); |
4fe67178 | 1788 | cd->devinfo.handle = NULL; |
1da177e4 LT |
1789 | return 1; |
1790 | } | |
1e874f44 BZ |
1791 | |
1792 | ide_proc_register_driver(drive, cd->driver); | |
1da177e4 LT |
1793 | return 0; |
1794 | } | |
1795 | ||
4031bbe4 | 1796 | static void ide_cd_remove(ide_drive_t *drive) |
1da177e4 LT |
1797 | { |
1798 | struct cdrom_info *info = drive->driver_data; | |
1799 | ||
fc8323f7 BP |
1800 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1801 | ||
7662d046 | 1802 | ide_proc_unregister_driver(drive, info->driver); |
8fed4368 | 1803 | device_del(&info->dev); |
1da177e4 LT |
1804 | del_gendisk(info->disk); |
1805 | ||
8fed4368 BZ |
1806 | mutex_lock(&idecd_ref_mutex); |
1807 | put_device(&info->dev); | |
1808 | mutex_unlock(&idecd_ref_mutex); | |
1da177e4 LT |
1809 | } |
1810 | ||
8fed4368 | 1811 | static void ide_cd_release(struct device *dev) |
1da177e4 | 1812 | { |
8fed4368 | 1813 | struct cdrom_info *info = to_ide_drv(dev, cdrom_info); |
1da177e4 LT |
1814 | struct cdrom_device_info *devinfo = &info->devinfo; |
1815 | ide_drive_t *drive = info->drive; | |
1816 | struct gendisk *g = info->disk; | |
1817 | ||
fc8323f7 BP |
1818 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1819 | ||
6044ec88 | 1820 | kfree(info->toc); |
0a0c4114 AM |
1821 | if (devinfo->handle == drive) |
1822 | unregister_cdrom(devinfo); | |
1da177e4 LT |
1823 | drive->driver_data = NULL; |
1824 | blk_queue_prep_rq(drive->queue, NULL); | |
1825 | g->private_data = NULL; | |
1826 | put_disk(g); | |
1827 | kfree(info); | |
1828 | } | |
1829 | ||
4031bbe4 | 1830 | static int ide_cd_probe(ide_drive_t *); |
1da177e4 | 1831 | |
7f3c868b | 1832 | static struct ide_driver ide_cdrom_driver = { |
8604affd | 1833 | .gen_driver = { |
4ef3b8f4 | 1834 | .owner = THIS_MODULE, |
8604affd BZ |
1835 | .name = "ide-cdrom", |
1836 | .bus = &ide_bus_type, | |
8604affd | 1837 | }, |
4031bbe4 RK |
1838 | .probe = ide_cd_probe, |
1839 | .remove = ide_cd_remove, | |
1da177e4 | 1840 | .version = IDECD_VERSION, |
99384aea | 1841 | .do_request = ide_cd_do_request, |
1da177e4 | 1842 | .end_request = ide_end_request, |
7662d046 | 1843 | #ifdef CONFIG_IDE_PROC_FS |
79cb3803 BZ |
1844 | .proc_entries = ide_cd_proc_entries, |
1845 | .proc_devsets = ide_cd_proc_devsets, | |
7662d046 | 1846 | #endif |
1da177e4 LT |
1847 | }; |
1848 | ||
488ca606 | 1849 | static int idecd_open(struct block_device *bdev, fmode_t mode) |
1da177e4 | 1850 | { |
488ca606 | 1851 | struct cdrom_info *info = ide_cd_get(bdev->bd_disk); |
1da177e4 LT |
1852 | int rc = -ENOMEM; |
1853 | ||
9ce70fb2 | 1854 | if (!info) |
1da177e4 LT |
1855 | return -ENXIO; |
1856 | ||
488ca606 | 1857 | rc = cdrom_open(&info->devinfo, bdev, mode); |
1da177e4 LT |
1858 | |
1859 | if (rc < 0) | |
1860 | ide_cd_put(info); | |
1861 | ||
1862 | return rc; | |
1863 | } | |
1864 | ||
488ca606 | 1865 | static int idecd_release(struct gendisk *disk, fmode_t mode) |
1da177e4 | 1866 | { |
5aeddf90 | 1867 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1868 | |
488ca606 | 1869 | cdrom_release(&info->devinfo, mode); |
1da177e4 LT |
1870 | |
1871 | ide_cd_put(info); | |
1872 | ||
1873 | return 0; | |
1874 | } | |
1875 | ||
6a2900b6 CH |
1876 | static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
1877 | { | |
1878 | struct packet_command cgc; | |
1879 | char buffer[16]; | |
1880 | int stat; | |
1881 | char spindown; | |
1882 | ||
1883 | if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) | |
1884 | return -EFAULT; | |
1885 | ||
1886 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1887 | ||
1888 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1889 | if (stat) | |
1890 | return stat; | |
1891 | ||
1892 | buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); | |
1893 | return cdrom_mode_select(cdi, &cgc); | |
1894 | } | |
1895 | ||
1896 | static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) | |
1897 | { | |
1898 | struct packet_command cgc; | |
1899 | char buffer[16]; | |
1900 | int stat; | |
9ce70fb2 | 1901 | char spindown; |
6a2900b6 CH |
1902 | |
1903 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
1904 | ||
1905 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
1906 | if (stat) | |
1907 | return stat; | |
1908 | ||
1909 | spindown = buffer[11] & 0x0f; | |
9ce70fb2 | 1910 | if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) |
6a2900b6 CH |
1911 | return -EFAULT; |
1912 | return 0; | |
1913 | } | |
1914 | ||
488ca606 | 1915 | static int idecd_ioctl(struct block_device *bdev, fmode_t mode, |
1da177e4 LT |
1916 | unsigned int cmd, unsigned long arg) |
1917 | { | |
5aeddf90 | 1918 | struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info); |
1da177e4 LT |
1919 | int err; |
1920 | ||
6a2900b6 | 1921 | switch (cmd) { |
9ce70fb2 | 1922 | case CDROMSETSPINDOWN: |
6a2900b6 | 1923 | return idecd_set_spindown(&info->devinfo, arg); |
9ce70fb2 | 1924 | case CDROMGETSPINDOWN: |
6a2900b6 CH |
1925 | return idecd_get_spindown(&info->devinfo, arg); |
1926 | default: | |
1927 | break; | |
9ce70fb2 | 1928 | } |
6a2900b6 | 1929 | |
1bddd9e6 | 1930 | err = generic_ide_ioctl(info->drive, bdev, cmd, arg); |
1da177e4 | 1931 | if (err == -EINVAL) |
488ca606 | 1932 | err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg); |
1da177e4 LT |
1933 | |
1934 | return err; | |
1935 | } | |
1936 | ||
1937 | static int idecd_media_changed(struct gendisk *disk) | |
1938 | { | |
5aeddf90 | 1939 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 LT |
1940 | return cdrom_media_changed(&info->devinfo); |
1941 | } | |
1942 | ||
1943 | static int idecd_revalidate_disk(struct gendisk *disk) | |
1944 | { | |
5aeddf90 | 1945 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 1946 | struct request_sense sense; |
139c829d BZ |
1947 | |
1948 | ide_cd_read_toc(info->drive, &sense); | |
1949 | ||
1da177e4 LT |
1950 | return 0; |
1951 | } | |
1952 | ||
1953 | static struct block_device_operations idecd_ops = { | |
9ce70fb2 | 1954 | .owner = THIS_MODULE, |
488ca606 AV |
1955 | .open = idecd_open, |
1956 | .release = idecd_release, | |
1957 | .locked_ioctl = idecd_ioctl, | |
9ce70fb2 PC |
1958 | .media_changed = idecd_media_changed, |
1959 | .revalidate_disk = idecd_revalidate_disk | |
1da177e4 LT |
1960 | }; |
1961 | ||
5a3ea3b4 | 1962 | /* module options */ |
9ce70fb2 | 1963 | static char *ignore; |
1da177e4 | 1964 | module_param(ignore, charp, 0400); |
35d9b17f BP |
1965 | |
1966 | static unsigned long debug_mask; | |
1967 | module_param(debug_mask, ulong, 0644); | |
1968 | ||
1da177e4 LT |
1969 | MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); |
1970 | ||
4031bbe4 | 1971 | static int ide_cd_probe(ide_drive_t *drive) |
1da177e4 LT |
1972 | { |
1973 | struct cdrom_info *info; | |
1974 | struct gendisk *g; | |
1975 | struct request_sense sense; | |
1976 | ||
fc8323f7 BP |
1977 | ide_debug_log(IDE_DBG_PROBE, "Call %s, drive->driver_req: %s, " |
1978 | "drive->media: 0x%x\n", __func__, drive->driver_req, | |
1979 | drive->media); | |
1980 | ||
1da177e4 LT |
1981 | if (!strstr("ide-cdrom", drive->driver_req)) |
1982 | goto failed; | |
2a924662 | 1983 | |
1da177e4 LT |
1984 | if (drive->media != ide_cdrom && drive->media != ide_optical) |
1985 | goto failed; | |
2a924662 | 1986 | |
1da177e4 LT |
1987 | /* skip drives that we were told to ignore */ |
1988 | if (ignore != NULL) { | |
1989 | if (strstr(ignore, drive->name)) { | |
fc8323f7 | 1990 | printk(KERN_INFO PFX "ignoring drive %s\n", |
83c8565d | 1991 | drive->name); |
1da177e4 LT |
1992 | goto failed; |
1993 | } | |
1994 | } | |
35d9b17f BP |
1995 | |
1996 | drive->debug_mask = debug_mask; | |
d6251d44 | 1997 | drive->irq_handler = cdrom_newpc_intr; |
35d9b17f | 1998 | |
f5e3c2fa | 1999 | info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); |
1da177e4 | 2000 | if (info == NULL) { |
fc8323f7 | 2001 | printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n", |
83c8565d | 2002 | drive->name); |
1da177e4 LT |
2003 | goto failed; |
2004 | } | |
2005 | ||
2006 | g = alloc_disk(1 << PARTN_BITS); | |
2007 | if (!g) | |
2008 | goto out_free_cd; | |
2009 | ||
2010 | ide_init_disk(g, drive); | |
2011 | ||
8fed4368 BZ |
2012 | info->dev.parent = &drive->gendev; |
2013 | info->dev.release = ide_cd_release; | |
2014 | dev_set_name(&info->dev, dev_name(&drive->gendev)); | |
2015 | ||
2016 | if (device_register(&info->dev)) | |
2017 | goto out_free_disk; | |
1da177e4 LT |
2018 | |
2019 | info->drive = drive; | |
2020 | info->driver = &ide_cdrom_driver; | |
2021 | info->disk = g; | |
2022 | ||
2023 | g->private_data = &info->driver; | |
2024 | ||
2025 | drive->driver_data = info; | |
2026 | ||
1da177e4 | 2027 | g->minors = 1; |
1da177e4 LT |
2028 | g->driverfs_dev = &drive->gendev; |
2029 | g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; | |
2030 | if (ide_cdrom_setup(drive)) { | |
8fed4368 | 2031 | put_device(&info->dev); |
1da177e4 LT |
2032 | goto failed; |
2033 | } | |
1da177e4 | 2034 | |
139c829d | 2035 | ide_cd_read_toc(drive, &sense); |
1da177e4 LT |
2036 | g->fops = &idecd_ops; |
2037 | g->flags |= GENHD_FL_REMOVABLE; | |
2038 | add_disk(g); | |
2039 | return 0; | |
2040 | ||
8fed4368 BZ |
2041 | out_free_disk: |
2042 | put_disk(g); | |
1da177e4 LT |
2043 | out_free_cd: |
2044 | kfree(info); | |
2045 | failed: | |
8604affd | 2046 | return -ENODEV; |
1da177e4 LT |
2047 | } |
2048 | ||
2049 | static void __exit ide_cdrom_exit(void) | |
2050 | { | |
8604affd | 2051 | driver_unregister(&ide_cdrom_driver.gen_driver); |
1da177e4 | 2052 | } |
17514e8a BZ |
2053 | |
2054 | static int __init ide_cdrom_init(void) | |
1da177e4 | 2055 | { |
fc8323f7 | 2056 | printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n"); |
8604affd | 2057 | return driver_register(&ide_cdrom_driver.gen_driver); |
1da177e4 LT |
2058 | } |
2059 | ||
263756ec | 2060 | MODULE_ALIAS("ide:*m-cdrom*"); |
972560fb | 2061 | MODULE_ALIAS("ide-cd"); |
1da177e4 LT |
2062 | module_init(ide_cdrom_init); |
2063 | module_exit(ide_cdrom_exit); | |
2064 | MODULE_LICENSE("GPL"); |