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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 | |
08da591e BZ |
58 | static void ide_cd_release(struct kref *); |
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 BZ |
69 | else |
70 | kref_get(&cd->kref); | |
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); |
1da177e4 | 82 | kref_put(&cd->kref, ide_cd_release); |
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 | |
dbe217af | 197 | if (sector < get_capacity(info->disk) && |
e5e076a3 | 198 | drive->probed_capacity - sector < 4 * 75) |
dbe217af | 199 | set_capacity(info->disk, sector); |
9ce70fb2 PC |
200 | } |
201 | } | |
1da177e4 | 202 | |
972560fb | 203 | ide_cd_log_error(drive->name, failed_command, sense); |
1da177e4 LT |
204 | } |
205 | ||
1da177e4 LT |
206 | static void cdrom_queue_request_sense(ide_drive_t *drive, void *sense, |
207 | struct request *failed_command) | |
208 | { | |
209 | struct cdrom_info *info = drive->driver_data; | |
210 | struct request *rq = &info->request_sense_request; | |
211 | ||
fc8323f7 BP |
212 | ide_debug_log(IDE_DBG_SENSE, "Call %s\n", __func__); |
213 | ||
1da177e4 LT |
214 | if (sense == NULL) |
215 | sense = &info->sense_data; | |
216 | ||
217 | /* stuff the sense request in front of our current request */ | |
ed820f19 FT |
218 | blk_rq_init(NULL, rq); |
219 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
220 | rq->rq_disk = info->disk; | |
1da177e4 LT |
221 | |
222 | rq->data = sense; | |
223 | rq->cmd[0] = GPCMD_REQUEST_SENSE; | |
e5e076a3 BP |
224 | rq->cmd[4] = 18; |
225 | rq->data_len = 18; | |
1da177e4 | 226 | |
4aff5e23 | 227 | rq->cmd_type = REQ_TYPE_SENSE; |
e8a96aa7 | 228 | rq->cmd_flags |= REQ_PREEMPT; |
1da177e4 LT |
229 | |
230 | /* NOTE! Save the failed command in "rq->buffer" */ | |
231 | rq->buffer = (void *) failed_command; | |
232 | ||
fc8323f7 BP |
233 | if (failed_command) |
234 | ide_debug_log(IDE_DBG_SENSE, "failed_cmd: 0x%x\n", | |
235 | failed_command->cmd[0]); | |
236 | ||
63f5abb0 | 237 | ide_do_drive_cmd(drive, rq); |
1da177e4 LT |
238 | } |
239 | ||
9ce70fb2 | 240 | static void cdrom_end_request(ide_drive_t *drive, int uptodate) |
1da177e4 LT |
241 | { |
242 | struct request *rq = HWGROUP(drive)->rq; | |
243 | int nsectors = rq->hard_cur_sectors; | |
244 | ||
fc8323f7 BP |
245 | ide_debug_log(IDE_DBG_FUNC, "Call %s, cmd: 0x%x, uptodate: 0x%x, " |
246 | "nsectors: %d\n", __func__, rq->cmd[0], uptodate, | |
247 | nsectors); | |
248 | ||
4aff5e23 | 249 | if (blk_sense_request(rq) && uptodate) { |
1da177e4 | 250 | /* |
4aff5e23 JA |
251 | * For REQ_TYPE_SENSE, "rq->buffer" points to the original |
252 | * failed request | |
1da177e4 LT |
253 | */ |
254 | struct request *failed = (struct request *) rq->buffer; | |
255 | struct cdrom_info *info = drive->driver_data; | |
256 | void *sense = &info->sense_data; | |
1da177e4 LT |
257 | |
258 | if (failed) { | |
259 | if (failed->sense) { | |
260 | sense = failed->sense; | |
261 | failed->sense_len = rq->sense_len; | |
262 | } | |
dbe217af | 263 | cdrom_analyze_sense_data(drive, failed, sense); |
1da177e4 | 264 | /* |
5a3ea3b4 | 265 | * now end the failed request |
1da177e4 | 266 | */ |
dbe217af AC |
267 | if (blk_fs_request(failed)) { |
268 | if (ide_end_dequeued_request(drive, failed, 0, | |
269 | failed->hard_nr_sectors)) | |
270 | BUG(); | |
271 | } else { | |
3c8a2cce BZ |
272 | if (blk_end_request(failed, -EIO, |
273 | failed->data_len)) | |
5e36bb6e | 274 | BUG(); |
dbe217af AC |
275 | } |
276 | } else | |
277 | cdrom_analyze_sense_data(drive, NULL, sense); | |
1da177e4 LT |
278 | } |
279 | ||
280 | if (!rq->current_nr_sectors && blk_fs_request(rq)) | |
281 | uptodate = 1; | |
282 | /* make sure it's fully ended */ | |
283 | if (blk_pc_request(rq)) | |
284 | nsectors = (rq->data_len + 511) >> 9; | |
285 | if (!nsectors) | |
286 | nsectors = 1; | |
287 | ||
fc8323f7 BP |
288 | ide_debug_log(IDE_DBG_FUNC, "Exit %s, uptodate: 0x%x, nsectors: %d\n", |
289 | __func__, uptodate, nsectors); | |
290 | ||
1da177e4 LT |
291 | ide_end_request(drive, uptodate, nsectors); |
292 | } | |
293 | ||
83c8565d | 294 | static void ide_dump_status_no_sense(ide_drive_t *drive, const char *msg, u8 st) |
dbe217af | 295 | { |
83c8565d | 296 | if (st & 0x80) |
dbe217af | 297 | return; |
83c8565d | 298 | ide_dump_status(drive, msg, st); |
dbe217af AC |
299 | } |
300 | ||
5a3ea3b4 BP |
301 | /* |
302 | * Returns: | |
303 | * 0: if the request should be continued. | |
304 | * 1: if the request was ended. | |
305 | */ | |
1da177e4 LT |
306 | static int cdrom_decode_status(ide_drive_t *drive, int good_stat, int *stat_ret) |
307 | { | |
b73c7ee2 | 308 | ide_hwif_t *hwif = drive->hwif; |
1d0bf587 BZ |
309 | ide_hwgroup_t *hwgroup = hwif->hwgroup; |
310 | struct request *rq = hwgroup->rq; | |
1da177e4 | 311 | int stat, err, sense_key; |
9ce70fb2 | 312 | |
5a3ea3b4 | 313 | /* check for errors */ |
374e042c | 314 | stat = hwif->tp_ops->read_status(hwif); |
c47137a9 | 315 | |
1da177e4 LT |
316 | if (stat_ret) |
317 | *stat_ret = stat; | |
318 | ||
319 | if (OK_STAT(stat, good_stat, BAD_R_STAT)) | |
320 | return 0; | |
321 | ||
5a3ea3b4 | 322 | /* get the IDE error register */ |
64a57fe4 | 323 | err = ide_read_error(drive); |
1da177e4 LT |
324 | sense_key = err >> 4; |
325 | ||
326 | if (rq == NULL) { | |
fc8323f7 | 327 | printk(KERN_ERR PFX "%s: missing rq in %s\n", |
e5e076a3 | 328 | drive->name, __func__); |
1da177e4 LT |
329 | return 1; |
330 | } | |
331 | ||
fc8323f7 | 332 | ide_debug_log(IDE_DBG_RQ, "%s: stat: 0x%x, good_stat: 0x%x, " |
71b429ca BP |
333 | "rq->cmd[0]: 0x%x, rq->cmd_type: 0x%x, err: 0x%x\n", |
334 | __func__, stat, good_stat, rq->cmd[0], rq->cmd_type, err); | |
fc8323f7 | 335 | |
4aff5e23 | 336 | if (blk_sense_request(rq)) { |
5a3ea3b4 BP |
337 | /* |
338 | * We got an error trying to get sense info from the drive | |
339 | * (probably while trying to recover from a former error). | |
340 | * Just give up. | |
341 | */ | |
4aff5e23 | 342 | rq->cmd_flags |= REQ_FAILED; |
1da177e4 LT |
343 | cdrom_end_request(drive, 0); |
344 | ide_error(drive, "request sense failure", stat); | |
345 | return 1; | |
346 | ||
8770c018 | 347 | } else if (blk_pc_request(rq) || rq->cmd_type == REQ_TYPE_ATA_PC) { |
1da177e4 | 348 | /* All other functions, except for READ. */ |
1da177e4 LT |
349 | |
350 | /* | |
351 | * if we have an error, pass back CHECK_CONDITION as the | |
352 | * scsi status byte | |
353 | */ | |
b7156731 | 354 | if (blk_pc_request(rq) && !rq->errors) |
1da177e4 LT |
355 | rq->errors = SAM_STAT_CHECK_CONDITION; |
356 | ||
5a3ea3b4 | 357 | /* check for tray open */ |
1da177e4 | 358 | if (sense_key == NOT_READY) { |
9ce70fb2 | 359 | cdrom_saw_media_change(drive); |
1da177e4 | 360 | } else if (sense_key == UNIT_ATTENTION) { |
5a3ea3b4 | 361 | /* check for media change */ |
9ce70fb2 | 362 | cdrom_saw_media_change(drive); |
1da177e4 | 363 | return 0; |
9ce70fb2 PC |
364 | } else if (sense_key == ILLEGAL_REQUEST && |
365 | rq->cmd[0] == GPCMD_START_STOP_UNIT) { | |
366 | /* | |
367 | * Don't print error message for this condition-- | |
368 | * SFF8090i indicates that 5/24/00 is the correct | |
369 | * response to a request to close the tray if the | |
370 | * drive doesn't have that capability. | |
371 | * cdrom_log_sense() knows this! | |
372 | */ | |
4aff5e23 | 373 | } else if (!(rq->cmd_flags & REQ_QUIET)) { |
5a3ea3b4 | 374 | /* otherwise, print an error */ |
1da177e4 LT |
375 | ide_dump_status(drive, "packet command error", stat); |
376 | } | |
9ce70fb2 | 377 | |
4aff5e23 | 378 | rq->cmd_flags |= REQ_FAILED; |
1da177e4 LT |
379 | |
380 | /* | |
381 | * instead of playing games with moving completions around, | |
382 | * remove failed request completely and end it when the | |
383 | * request sense has completed | |
384 | */ | |
bbb89e3d | 385 | goto end_request; |
1da177e4 LT |
386 | |
387 | } else if (blk_fs_request(rq)) { | |
388 | int do_end_request = 0; | |
389 | ||
5a3ea3b4 | 390 | /* handle errors from READ and WRITE requests */ |
1da177e4 LT |
391 | |
392 | if (blk_noretry_request(rq)) | |
393 | do_end_request = 1; | |
394 | ||
395 | if (sense_key == NOT_READY) { | |
5a3ea3b4 | 396 | /* tray open */ |
1da177e4 | 397 | if (rq_data_dir(rq) == READ) { |
9ce70fb2 | 398 | cdrom_saw_media_change(drive); |
1da177e4 | 399 | |
5a3ea3b4 | 400 | /* fail the request */ |
fc8323f7 BP |
401 | printk(KERN_ERR PFX "%s: tray open\n", |
402 | drive->name); | |
1da177e4 LT |
403 | do_end_request = 1; |
404 | } else { | |
405 | struct cdrom_info *info = drive->driver_data; | |
406 | ||
5a3ea3b4 BP |
407 | /* |
408 | * Allow the drive 5 seconds to recover, some | |
1da177e4 | 409 | * devices will return this error while flushing |
5a3ea3b4 BP |
410 | * data from cache. |
411 | */ | |
1da177e4 | 412 | if (!rq->errors) |
83c8565d BP |
413 | info->write_timeout = jiffies + |
414 | ATAPI_WAIT_WRITE_BUSY; | |
1da177e4 LT |
415 | rq->errors = 1; |
416 | if (time_after(jiffies, info->write_timeout)) | |
417 | do_end_request = 1; | |
418 | else { | |
6ea52226 | 419 | struct request_queue *q = drive->queue; |
1da177e4 LT |
420 | unsigned long flags; |
421 | ||
422 | /* | |
5a3ea3b4 BP |
423 | * take a breather relying on the unplug |
424 | * timer to kick us again | |
1da177e4 | 425 | */ |
6ea52226 BZ |
426 | spin_lock_irqsave(q->queue_lock, flags); |
427 | blk_plug_device(q); | |
428 | spin_unlock_irqrestore(q->queue_lock, flags); | |
429 | ||
1da177e4 LT |
430 | return 1; |
431 | } | |
432 | } | |
433 | } else if (sense_key == UNIT_ATTENTION) { | |
5a3ea3b4 | 434 | /* media change */ |
e5e076a3 | 435 | cdrom_saw_media_change(drive); |
1da177e4 | 436 | |
9ce70fb2 | 437 | /* |
5a3ea3b4 BP |
438 | * Arrange to retry the request but be sure to give up |
439 | * if we've retried too many times. | |
9ce70fb2 | 440 | */ |
1da177e4 LT |
441 | if (++rq->errors > ERROR_MAX) |
442 | do_end_request = 1; | |
443 | } else if (sense_key == ILLEGAL_REQUEST || | |
444 | sense_key == DATA_PROTECT) { | |
9ce70fb2 | 445 | /* |
5a3ea3b4 BP |
446 | * No point in retrying after an illegal request or data |
447 | * protect error. | |
9ce70fb2 PC |
448 | */ |
449 | ide_dump_status_no_sense(drive, "command error", stat); | |
1da177e4 LT |
450 | do_end_request = 1; |
451 | } else if (sense_key == MEDIUM_ERROR) { | |
9ce70fb2 PC |
452 | /* |
453 | * No point in re-trying a zillion times on a bad | |
5a3ea3b4 | 454 | * sector. If we got here the error is not correctable. |
9ce70fb2 | 455 | */ |
83c8565d BP |
456 | ide_dump_status_no_sense(drive, |
457 | "media error (bad sector)", | |
458 | stat); | |
1da177e4 LT |
459 | do_end_request = 1; |
460 | } else if (sense_key == BLANK_CHECK) { | |
5a3ea3b4 | 461 | /* disk appears blank ?? */ |
83c8565d BP |
462 | ide_dump_status_no_sense(drive, "media error (blank)", |
463 | stat); | |
1da177e4 | 464 | do_end_request = 1; |
3a7d2484 | 465 | } else if ((err & ~ATA_ABORTED) != 0) { |
5a3ea3b4 | 466 | /* go to the default handler for other errors */ |
1da177e4 LT |
467 | ide_error(drive, "cdrom_decode_status", stat); |
468 | return 1; | |
469 | } else if ((++rq->errors > ERROR_MAX)) { | |
5a3ea3b4 | 470 | /* we've racked up too many retries, abort */ |
1da177e4 LT |
471 | do_end_request = 1; |
472 | } | |
473 | ||
5a3ea3b4 BP |
474 | /* |
475 | * End a request through request sense analysis when we have | |
476 | * sense data. We need this in order to perform end of media | |
477 | * processing. | |
478 | */ | |
bbb89e3d BZ |
479 | if (do_end_request) |
480 | goto end_request; | |
dbe217af | 481 | |
bbb89e3d | 482 | /* |
5a3ea3b4 BP |
483 | * If we got a CHECK_CONDITION status, queue |
484 | * a request sense command. | |
bbb89e3d | 485 | */ |
3a7d2484 | 486 | if (stat & ATA_ERR) |
bbb89e3d | 487 | cdrom_queue_request_sense(drive, NULL, NULL); |
1da177e4 | 488 | } else { |
fc8323f7 | 489 | blk_dump_rq_flags(rq, PFX "bad rq"); |
1da177e4 LT |
490 | cdrom_end_request(drive, 0); |
491 | } | |
492 | ||
5a3ea3b4 | 493 | /* retry, or handle the next request */ |
1da177e4 | 494 | return 1; |
bbb89e3d BZ |
495 | |
496 | end_request: | |
3a7d2484 | 497 | if (stat & ATA_ERR) { |
6ea52226 | 498 | struct request_queue *q = drive->queue; |
bbb89e3d BZ |
499 | unsigned long flags; |
500 | ||
6ea52226 | 501 | spin_lock_irqsave(q->queue_lock, flags); |
bbb89e3d | 502 | blkdev_dequeue_request(rq); |
6ea52226 | 503 | spin_unlock_irqrestore(q->queue_lock, flags); |
bbb89e3d | 504 | |
1d0bf587 BZ |
505 | hwgroup->rq = NULL; |
506 | ||
bbb89e3d BZ |
507 | cdrom_queue_request_sense(drive, rq->sense, rq); |
508 | } else | |
509 | cdrom_end_request(drive, 0); | |
510 | ||
511 | return 1; | |
1da177e4 LT |
512 | } |
513 | ||
514 | static int cdrom_timer_expiry(ide_drive_t *drive) | |
515 | { | |
516 | struct request *rq = HWGROUP(drive)->rq; | |
517 | unsigned long wait = 0; | |
518 | ||
fc8323f7 BP |
519 | ide_debug_log(IDE_DBG_RQ, "Call %s: rq->cmd[0]: 0x%x\n", __func__, |
520 | rq->cmd[0]); | |
521 | ||
1da177e4 | 522 | /* |
5a3ea3b4 BP |
523 | * Some commands are *slow* and normally take a long time to complete. |
524 | * Usually we can use the ATAPI "disconnect" to bypass this, but not all | |
525 | * commands/drives support that. Let ide_timer_expiry keep polling us | |
526 | * for these. | |
1da177e4 LT |
527 | */ |
528 | switch (rq->cmd[0]) { | |
9ce70fb2 PC |
529 | case GPCMD_BLANK: |
530 | case GPCMD_FORMAT_UNIT: | |
531 | case GPCMD_RESERVE_RZONE_TRACK: | |
532 | case GPCMD_CLOSE_TRACK: | |
533 | case GPCMD_FLUSH_CACHE: | |
534 | wait = ATAPI_WAIT_PC; | |
535 | break; | |
536 | default: | |
537 | if (!(rq->cmd_flags & REQ_QUIET)) | |
fc8323f7 | 538 | printk(KERN_INFO PFX "cmd 0x%x timed out\n", |
83c8565d | 539 | rq->cmd[0]); |
9ce70fb2 PC |
540 | wait = 0; |
541 | break; | |
1da177e4 LT |
542 | } |
543 | return wait; | |
544 | } | |
545 | ||
5a3ea3b4 BP |
546 | /* |
547 | * Set up the device registers for transferring a packet command on DEV, | |
548 | * expecting to later transfer XFERLEN bytes. HANDLER is the routine | |
549 | * which actually transfers the command to the drive. If this is a | |
550 | * drq_interrupt device, this routine will arrange for HANDLER to be | |
551 | * called when the interrupt from the drive arrives. Otherwise, HANDLER | |
552 | * will be called immediately after the drive is prepared for the transfer. | |
553 | */ | |
1da177e4 LT |
554 | static ide_startstop_t cdrom_start_packet_command(ide_drive_t *drive, |
555 | int xferlen, | |
556 | ide_handler_t *handler) | |
557 | { | |
1da177e4 LT |
558 | ide_hwif_t *hwif = drive->hwif; |
559 | ||
fc8323f7 BP |
560 | ide_debug_log(IDE_DBG_PC, "Call %s, xferlen: %d\n", __func__, xferlen); |
561 | ||
3a6a3549 | 562 | /* FIXME: for Virtual DMA we must check harder */ |
12469ac0 BP |
563 | if (drive->dma) |
564 | drive->dma = !hwif->dma_ops->dma_setup(drive); | |
1da177e4 | 565 | |
5a3ea3b4 | 566 | /* set up the controller registers */ |
9a410e79 | 567 | ide_pktcmd_tf_load(drive, IDE_TFLAG_OUT_NSECT | IDE_TFLAG_OUT_LBAL, |
12469ac0 | 568 | xferlen, drive->dma); |
4fe67178 | 569 | |
570f89ea | 570 | if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { |
f0dd8712 | 571 | /* waiting for CDB interrupt, not DMA yet. */ |
12469ac0 | 572 | if (drive->dma) |
f0dd8712 AL |
573 | drive->waiting_for_dma = 0; |
574 | ||
1da177e4 | 575 | /* packet command */ |
aaaade3f | 576 | ide_execute_command(drive, ATA_CMD_PACKET, handler, |
83c8565d | 577 | ATAPI_WAIT_PC, cdrom_timer_expiry); |
1da177e4 LT |
578 | return ide_started; |
579 | } else { | |
1fc14258 | 580 | ide_execute_pkt_cmd(drive); |
1da177e4 LT |
581 | |
582 | return (*handler) (drive); | |
583 | } | |
584 | } | |
585 | ||
5a3ea3b4 BP |
586 | /* |
587 | * Send a packet command to DRIVE described by CMD_BUF and CMD_LEN. The device | |
588 | * registers must have already been prepared by cdrom_start_packet_command. | |
589 | * HANDLER is the interrupt handler to call when the command completes or | |
590 | * there's data ready. | |
591 | */ | |
1da177e4 | 592 | #define ATAPI_MIN_CDB_BYTES 12 |
9ce70fb2 | 593 | static ide_startstop_t cdrom_transfer_packet_command(ide_drive_t *drive, |
1da177e4 LT |
594 | struct request *rq, |
595 | ide_handler_t *handler) | |
596 | { | |
597 | ide_hwif_t *hwif = drive->hwif; | |
598 | int cmd_len; | |
1da177e4 LT |
599 | ide_startstop_t startstop; |
600 | ||
fc8323f7 BP |
601 | ide_debug_log(IDE_DBG_PC, "Call %s\n", __func__); |
602 | ||
570f89ea | 603 | if (drive->atapi_flags & IDE_AFLAG_DRQ_INTERRUPT) { |
5a3ea3b4 BP |
604 | /* |
605 | * Here we should have been called after receiving an interrupt | |
606 | * from the device. DRQ should how be set. | |
607 | */ | |
1da177e4 | 608 | |
5a3ea3b4 | 609 | /* check for errors */ |
3a7d2484 | 610 | if (cdrom_decode_status(drive, ATA_DRQ, NULL)) |
1da177e4 | 611 | return ide_stopped; |
f0dd8712 | 612 | |
5a3ea3b4 | 613 | /* ok, next interrupt will be DMA interrupt */ |
12469ac0 | 614 | if (drive->dma) |
f0dd8712 | 615 | drive->waiting_for_dma = 1; |
1da177e4 | 616 | } else { |
5a3ea3b4 | 617 | /* otherwise, we must wait for DRQ to get set */ |
3a7d2484 BZ |
618 | if (ide_wait_stat(&startstop, drive, ATA_DRQ, |
619 | ATA_BUSY, WAIT_READY)) | |
1da177e4 LT |
620 | return startstop; |
621 | } | |
622 | ||
5a3ea3b4 | 623 | /* arm the interrupt handler */ |
1da177e4 LT |
624 | ide_set_handler(drive, handler, rq->timeout, cdrom_timer_expiry); |
625 | ||
626 | /* ATAPI commands get padded out to 12 bytes minimum */ | |
627 | cmd_len = COMMAND_SIZE(rq->cmd[0]); | |
628 | if (cmd_len < ATAPI_MIN_CDB_BYTES) | |
629 | cmd_len = ATAPI_MIN_CDB_BYTES; | |
630 | ||
5a3ea3b4 | 631 | /* send the command to the device */ |
374e042c | 632 | hwif->tp_ops->output_data(drive, NULL, rq->cmd, cmd_len); |
1da177e4 | 633 | |
5a3ea3b4 | 634 | /* start the DMA if need be */ |
12469ac0 | 635 | if (drive->dma) |
5e37bdc0 | 636 | hwif->dma_ops->dma_start(drive); |
1da177e4 LT |
637 | |
638 | return ide_started; | |
639 | } | |
640 | ||
1da177e4 LT |
641 | /* |
642 | * Check the contents of the interrupt reason register from the cdrom | |
643 | * and attempt to recover if there are problems. Returns 0 if everything's | |
644 | * ok; nonzero if the request has been terminated. | |
645 | */ | |
9f10d9ee BZ |
646 | static int ide_cd_check_ireason(ide_drive_t *drive, struct request *rq, |
647 | int len, int ireason, int rw) | |
1da177e4 | 648 | { |
b73c7ee2 BZ |
649 | ide_hwif_t *hwif = drive->hwif; |
650 | ||
fc8323f7 BP |
651 | ide_debug_log(IDE_DBG_FUNC, "Call %s, ireason: 0x%x, rw: 0x%x\n", |
652 | __func__, ireason, rw); | |
653 | ||
0d6f7e3a BZ |
654 | /* |
655 | * ireason == 0: the drive wants to receive data from us | |
656 | * ireason == 2: the drive is expecting to transfer data to us | |
657 | */ | |
658 | if (ireason == (!rw << 1)) | |
1da177e4 | 659 | return 0; |
0d6f7e3a | 660 | else if (ireason == (rw << 1)) { |
5a5222d9 | 661 | |
5a3ea3b4 | 662 | /* whoops... */ |
fc8323f7 | 663 | printk(KERN_ERR PFX "%s: %s: wrong transfer direction!\n", |
177773ed | 664 | drive->name, __func__); |
1da177e4 | 665 | |
ae8789f0 | 666 | ide_pad_transfer(drive, rw, len); |
0d6f7e3a | 667 | } else if (rw == 0 && ireason == 1) { |
5a3ea3b4 BP |
668 | /* |
669 | * Some drives (ASUS) seem to tell us that status info is | |
670 | * available. Just get it and ignore. | |
1da177e4 | 671 | */ |
374e042c | 672 | (void)hwif->tp_ops->read_status(hwif); |
1da177e4 LT |
673 | return 0; |
674 | } else { | |
5a3ea3b4 | 675 | /* drive wants a command packet, or invalid ireason... */ |
fc8323f7 | 676 | printk(KERN_ERR PFX "%s: %s: bad interrupt reason 0x%02x\n", |
177773ed | 677 | drive->name, __func__, ireason); |
1da177e4 LT |
678 | } |
679 | ||
9f10d9ee BZ |
680 | if (rq->cmd_type == REQ_TYPE_ATA_PC) |
681 | rq->cmd_flags |= REQ_FAILED; | |
682 | ||
1da177e4 LT |
683 | cdrom_end_request(drive, 0); |
684 | return -1; | |
685 | } | |
686 | ||
64814f23 BZ |
687 | /* |
688 | * Assume that the drive will always provide data in multiples of at least | |
689 | * SECTOR_SIZE, as it gets hairy to keep track of the transfers otherwise. | |
690 | */ | |
691 | static int ide_cd_check_transfer_size(ide_drive_t *drive, int len) | |
692 | { | |
fc8323f7 BP |
693 | ide_debug_log(IDE_DBG_FUNC, "Call %s, len: %d\n", __func__, len); |
694 | ||
64814f23 BZ |
695 | if ((len % SECTOR_SIZE) == 0) |
696 | return 0; | |
697 | ||
fc8323f7 BP |
698 | printk(KERN_ERR PFX "%s: %s: Bad transfer size %d\n", drive->name, |
699 | __func__, len); | |
64814f23 | 700 | |
570f89ea | 701 | if (drive->atapi_flags & IDE_AFLAG_LIMIT_NFRAMES) |
fc8323f7 BP |
702 | printk(KERN_ERR PFX "This drive is not supported by this " |
703 | "version of the driver\n"); | |
64814f23 | 704 | else { |
fc8323f7 | 705 | printk(KERN_ERR PFX "Trying to limit transfer sizes\n"); |
570f89ea | 706 | drive->atapi_flags |= IDE_AFLAG_LIMIT_NFRAMES; |
64814f23 BZ |
707 | } |
708 | ||
709 | return 1; | |
710 | } | |
711 | ||
0041e7c6 | 712 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *); |
94f5a86d | 713 | |
90eb808e BP |
714 | static ide_startstop_t ide_cd_prepare_rw_request(ide_drive_t *drive, |
715 | struct request *rq) | |
1da177e4 | 716 | { |
fc8323f7 BP |
717 | ide_debug_log(IDE_DBG_RQ, "Call %s: rq->cmd_flags: 0x%x\n", __func__, |
718 | rq->cmd_flags); | |
719 | ||
29f3aaca BZ |
720 | if (rq_data_dir(rq) == READ) { |
721 | unsigned short sectors_per_frame = | |
722 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
723 | int nskip = rq->sector & (sectors_per_frame - 1); | |
1da177e4 | 724 | |
29f3aaca BZ |
725 | /* |
726 | * If the requested sector doesn't start on a frame boundary, | |
727 | * we must adjust the start of the transfer so that it does, | |
728 | * and remember to skip the first few sectors. | |
729 | * | |
730 | * If the rq->current_nr_sectors field is larger than the size | |
731 | * of the buffer, it will mean that we're to skip a number of | |
732 | * sectors equal to the amount by which rq->current_nr_sectors | |
733 | * is larger than the buffer size. | |
734 | */ | |
735 | if (nskip > 0) { | |
5a3ea3b4 | 736 | /* sanity check... */ |
29f3aaca BZ |
737 | if (rq->current_nr_sectors != |
738 | bio_cur_sectors(rq->bio)) { | |
fc8323f7 | 739 | printk(KERN_ERR PFX "%s: %s: buffer botch (%u)\n", |
177773ed | 740 | drive->name, __func__, |
29f3aaca BZ |
741 | rq->current_nr_sectors); |
742 | cdrom_end_request(drive, 0); | |
743 | return ide_stopped; | |
744 | } | |
745 | rq->current_nr_sectors += nskip; | |
1da177e4 | 746 | } |
1da177e4 | 747 | } |
fc8323f7 | 748 | |
5a3ea3b4 | 749 | /* set up the command */ |
1da177e4 LT |
750 | rq->timeout = ATAPI_WAIT_PC; |
751 | ||
90eb808e BP |
752 | return ide_started; |
753 | } | |
754 | ||
755 | /* | |
756 | * Routine to send a read/write packet command to the drive. This is usually | |
757 | * called directly from cdrom_start_{read,write}(). However, for drq_interrupt | |
758 | * devices, it is called from an interrupt when the drive is ready to accept | |
759 | * the command. | |
760 | */ | |
761 | static ide_startstop_t cdrom_start_rw_cont(ide_drive_t *drive) | |
762 | { | |
763 | struct request *rq = drive->hwif->hwgroup->rq; | |
764 | ||
5a3ea3b4 | 765 | /* send the command to the drive and return */ |
0041e7c6 | 766 | return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr); |
1da177e4 LT |
767 | } |
768 | ||
9ce70fb2 | 769 | /* |
5a3ea3b4 BP |
770 | * Fix up a possibly partially-processed request so that we can start it over |
771 | * entirely, or even put it back on the request queue. | |
9ce70fb2 | 772 | */ |
fc8323f7 | 773 | static void ide_cd_restore_request(ide_drive_t *drive, struct request *rq) |
1da177e4 | 774 | { |
fc8323f7 BP |
775 | |
776 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); | |
777 | ||
1da177e4 | 778 | if (rq->buffer != bio_data(rq->bio)) { |
83c8565d BP |
779 | sector_t n = |
780 | (rq->buffer - (char *)bio_data(rq->bio)) / SECTOR_SIZE; | |
1da177e4 LT |
781 | |
782 | rq->buffer = bio_data(rq->bio); | |
783 | rq->nr_sectors += n; | |
784 | rq->sector -= n; | |
785 | } | |
83c8565d BP |
786 | rq->current_nr_sectors = bio_cur_sectors(rq->bio); |
787 | rq->hard_cur_sectors = rq->current_nr_sectors; | |
1da177e4 LT |
788 | rq->hard_nr_sectors = rq->nr_sectors; |
789 | rq->hard_sector = rq->sector; | |
790 | rq->q->prep_rq_fn(rq->q, rq); | |
791 | } | |
792 | ||
fc8323f7 | 793 | static void ide_cd_request_sense_fixup(ide_drive_t *drive, struct request *rq) |
8ee69f5a | 794 | { |
71b429ca BP |
795 | ide_debug_log(IDE_DBG_FUNC, "Call %s, rq->cmd[0]: 0x%x\n", |
796 | __func__, rq->cmd[0]); | |
fc8323f7 | 797 | |
8ee69f5a BZ |
798 | /* |
799 | * Some of the trailing request sense fields are optional, | |
800 | * and some drives don't send them. Sigh. | |
801 | */ | |
802 | if (rq->cmd[0] == GPCMD_REQUEST_SENSE && | |
803 | rq->data_len > 0 && rq->data_len <= 5) | |
804 | while (rq->data_len > 0) { | |
805 | *(u8 *)rq->data++ = 0; | |
806 | --rq->data_len; | |
807 | } | |
808 | } | |
809 | ||
5f828546 FT |
810 | int ide_cd_queue_pc(ide_drive_t *drive, const unsigned char *cmd, |
811 | int write, void *buffer, unsigned *bufflen, | |
812 | struct request_sense *sense, int timeout, | |
813 | unsigned int cmd_flags) | |
1da177e4 | 814 | { |
5f828546 FT |
815 | struct cdrom_info *info = drive->driver_data; |
816 | struct request_sense local_sense; | |
1da177e4 | 817 | int retries = 10; |
5f828546 | 818 | unsigned int flags = 0; |
1da177e4 | 819 | |
5f828546 FT |
820 | if (!sense) |
821 | sense = &local_sense; | |
1da177e4 | 822 | |
71b429ca | 823 | ide_debug_log(IDE_DBG_PC, "Call %s, cmd[0]: 0x%x, write: 0x%x, " |
fc8323f7 BP |
824 | "timeout: %d, cmd_flags: 0x%x\n", __func__, cmd[0], write, |
825 | timeout, cmd_flags); | |
826 | ||
5a3ea3b4 | 827 | /* start of retry loop */ |
1da177e4 | 828 | do { |
5f828546 | 829 | struct request *rq; |
1da177e4 | 830 | int error; |
1da177e4 | 831 | |
5f828546 FT |
832 | rq = blk_get_request(drive->queue, write, __GFP_WAIT); |
833 | ||
834 | memcpy(rq->cmd, cmd, BLK_MAX_CDB); | |
835 | rq->cmd_type = REQ_TYPE_ATA_PC; | |
836 | rq->sense = sense; | |
837 | rq->cmd_flags |= cmd_flags; | |
838 | rq->timeout = timeout; | |
839 | if (buffer) { | |
840 | rq->data = buffer; | |
841 | rq->data_len = *bufflen; | |
842 | } | |
843 | ||
844 | error = blk_execute_rq(drive->queue, info->disk, rq, 0); | |
845 | ||
846 | if (buffer) | |
847 | *bufflen = rq->data_len; | |
848 | ||
849 | flags = rq->cmd_flags; | |
850 | blk_put_request(rq); | |
1da177e4 | 851 | |
5a3ea3b4 BP |
852 | /* |
853 | * FIXME: we should probably abort/retry or something in case of | |
854 | * failure. | |
855 | */ | |
5f828546 | 856 | if (flags & REQ_FAILED) { |
5a3ea3b4 BP |
857 | /* |
858 | * The request failed. Retry if it was due to a unit | |
859 | * attention status (usually means media was changed). | |
860 | */ | |
5f828546 | 861 | struct request_sense *reqbuf = sense; |
1da177e4 LT |
862 | |
863 | if (reqbuf->sense_key == UNIT_ATTENTION) | |
864 | cdrom_saw_media_change(drive); | |
865 | else if (reqbuf->sense_key == NOT_READY && | |
866 | reqbuf->asc == 4 && reqbuf->ascq != 4) { | |
5a3ea3b4 BP |
867 | /* |
868 | * The drive is in the process of loading | |
869 | * a disk. Retry, but wait a little to give | |
870 | * the drive time to complete the load. | |
871 | */ | |
1da177e4 LT |
872 | ssleep(2); |
873 | } else { | |
5a3ea3b4 | 874 | /* otherwise, don't retry */ |
1da177e4 LT |
875 | retries = 0; |
876 | } | |
877 | --retries; | |
878 | } | |
879 | ||
5a3ea3b4 | 880 | /* end of retry loop */ |
5f828546 | 881 | } while ((flags & REQ_FAILED) && retries >= 0); |
1da177e4 | 882 | |
5a3ea3b4 | 883 | /* return an error if the command failed */ |
5f828546 | 884 | return (flags & REQ_FAILED) ? -EIO : 0; |
1da177e4 LT |
885 | } |
886 | ||
aaa04c28 | 887 | /* |
5a3ea3b4 BP |
888 | * Called from blk_end_request_callback() after the data of the request is |
889 | * completed and before the request itself is completed. By returning value '1', | |
890 | * blk_end_request_callback() returns immediately without completing it. | |
aaa04c28 KU |
891 | */ |
892 | static int cdrom_newpc_intr_dummy_cb(struct request *rq) | |
893 | { | |
894 | return 1; | |
895 | } | |
896 | ||
1da177e4 LT |
897 | static ide_startstop_t cdrom_newpc_intr(ide_drive_t *drive) |
898 | { | |
23579a2a | 899 | ide_hwif_t *hwif = drive->hwif; |
1d0bf587 BZ |
900 | ide_hwgroup_t *hwgroup = hwif->hwgroup; |
901 | struct request *rq = hwgroup->rq; | |
1da177e4 | 902 | xfer_func_t *xferfunc; |
0041e7c6 | 903 | ide_expiry_t *expiry = NULL; |
1823649b | 904 | int dma_error = 0, dma, stat, thislen, uptodate = 0; |
ff1bfbc1 BZ |
905 | int write = (rq_data_dir(rq) == WRITE) ? 1 : 0; |
906 | unsigned int timeout; | |
1823649b BZ |
907 | u16 len; |
908 | u8 ireason; | |
1da177e4 | 909 | |
fc8323f7 BP |
910 | ide_debug_log(IDE_DBG_PC, "Call %s, rq->cmd[0]: 0x%x, write: 0x%x\n", |
911 | __func__, rq->cmd[0], write); | |
912 | ||
5a3ea3b4 | 913 | /* check for errors */ |
12469ac0 | 914 | dma = drive->dma; |
1da177e4 | 915 | if (dma) { |
12469ac0 | 916 | drive->dma = 0; |
5e37bdc0 | 917 | dma_error = hwif->dma_ops->dma_end(drive); |
eba15fba | 918 | if (dma_error) { |
fc8323f7 | 919 | printk(KERN_ERR PFX "%s: DMA %s error\n", drive->name, |
ff1bfbc1 | 920 | write ? "write" : "read"); |
eba15fba BZ |
921 | ide_dma_off(drive); |
922 | } | |
1da177e4 LT |
923 | } |
924 | ||
925 | if (cdrom_decode_status(drive, 0, &stat)) | |
926 | return ide_stopped; | |
927 | ||
5a3ea3b4 | 928 | /* using dma, transfer is complete now */ |
1da177e4 | 929 | if (dma) { |
eba15fba | 930 | if (dma_error) |
1da177e4 | 931 | return ide_error(drive, "dma error", stat); |
0041e7c6 BZ |
932 | if (blk_fs_request(rq)) { |
933 | ide_end_request(drive, 1, rq->nr_sectors); | |
934 | return ide_stopped; | |
935 | } | |
ff1bfbc1 | 936 | goto end_request; |
1da177e4 LT |
937 | } |
938 | ||
1823649b | 939 | ide_read_bcount_and_ireason(drive, &len, &ireason); |
0041e7c6 BZ |
940 | |
941 | thislen = blk_fs_request(rq) ? len : rq->data_len; | |
1da177e4 LT |
942 | if (thislen > len) |
943 | thislen = len; | |
944 | ||
fc8323f7 BP |
945 | ide_debug_log(IDE_DBG_PC, "%s: DRQ: stat: 0x%x, thislen: %d\n", |
946 | __func__, stat, thislen); | |
947 | ||
5a3ea3b4 | 948 | /* If DRQ is clear, the command has completed. */ |
3a7d2484 | 949 | if ((stat & ATA_DRQ) == 0) { |
0041e7c6 BZ |
950 | if (blk_fs_request(rq)) { |
951 | /* | |
952 | * If we're not done reading/writing, complain. | |
953 | * Otherwise, complete the command normally. | |
954 | */ | |
955 | uptodate = 1; | |
956 | if (rq->current_nr_sectors > 0) { | |
fc8323f7 | 957 | printk(KERN_ERR PFX "%s: %s: data underrun " |
0041e7c6 | 958 | "(%d blocks)\n", |
177773ed | 959 | drive->name, __func__, |
0041e7c6 BZ |
960 | rq->current_nr_sectors); |
961 | if (!write) | |
962 | rq->cmd_flags |= REQ_FAILED; | |
963 | uptodate = 0; | |
964 | } | |
965 | cdrom_end_request(drive, uptodate); | |
966 | return ide_stopped; | |
967 | } else if (!blk_pc_request(rq)) { | |
fc8323f7 | 968 | ide_cd_request_sense_fixup(drive, rq); |
5a3ea3b4 | 969 | /* complain if we still have data left to transfer */ |
ff1bfbc1 BZ |
970 | uptodate = rq->data_len ? 0 : 1; |
971 | } | |
972 | goto end_request; | |
aaa04c28 | 973 | } |
1da177e4 | 974 | |
5a3ea3b4 | 975 | /* check which way to transfer data */ |
9f10d9ee BZ |
976 | if (ide_cd_check_ireason(drive, rq, len, ireason, write)) |
977 | return ide_stopped; | |
0041e7c6 | 978 | |
9f10d9ee BZ |
979 | if (blk_fs_request(rq)) { |
980 | if (write == 0) { | |
0041e7c6 BZ |
981 | int nskip; |
982 | ||
983 | if (ide_cd_check_transfer_size(drive, len)) { | |
984 | cdrom_end_request(drive, 0); | |
985 | return ide_stopped; | |
986 | } | |
987 | ||
988 | /* | |
989 | * First, figure out if we need to bit-bucket | |
990 | * any of the leading sectors. | |
991 | */ | |
992 | nskip = min_t(int, rq->current_nr_sectors | |
993 | - bio_cur_sectors(rq->bio), | |
994 | thislen >> 9); | |
995 | if (nskip > 0) { | |
ae8789f0 | 996 | ide_pad_transfer(drive, write, nskip << 9); |
0041e7c6 BZ |
997 | rq->current_nr_sectors -= nskip; |
998 | thislen -= (nskip << 9); | |
999 | } | |
1000 | } | |
ff1bfbc1 | 1001 | } |
1da177e4 | 1002 | |
ff1bfbc1 BZ |
1003 | if (ireason == 0) { |
1004 | write = 1; | |
374e042c | 1005 | xferfunc = hwif->tp_ops->output_data; |
9f10d9ee | 1006 | } else { |
ff1bfbc1 | 1007 | write = 0; |
374e042c | 1008 | xferfunc = hwif->tp_ops->input_data; |
1da177e4 LT |
1009 | } |
1010 | ||
fc8323f7 BP |
1011 | ide_debug_log(IDE_DBG_PC, "%s: data transfer, rq->cmd_type: 0x%x, " |
1012 | "ireason: 0x%x\n", __func__, rq->cmd_type, ireason); | |
1013 | ||
5a3ea3b4 | 1014 | /* transfer data */ |
1da177e4 | 1015 | while (thislen > 0) { |
0041e7c6 | 1016 | u8 *ptr = blk_fs_request(rq) ? NULL : rq->data; |
a11e77db | 1017 | int blen = rq->data_len; |
1da177e4 | 1018 | |
5a3ea3b4 | 1019 | /* bio backed? */ |
1da177e4 | 1020 | if (rq->bio) { |
0041e7c6 BZ |
1021 | if (blk_fs_request(rq)) { |
1022 | ptr = rq->buffer; | |
1023 | blen = rq->current_nr_sectors << 9; | |
1024 | } else { | |
1025 | ptr = bio_data(rq->bio); | |
1026 | blen = bio_iovec(rq->bio)->bv_len; | |
1027 | } | |
1da177e4 LT |
1028 | } |
1029 | ||
1030 | if (!ptr) { | |
0041e7c6 BZ |
1031 | if (blk_fs_request(rq) && !write) |
1032 | /* | |
968c4964 | 1033 | * If the buffers are full, pipe the rest into |
5a3ea3b4 BP |
1034 | * oblivion. |
1035 | */ | |
ae8789f0 | 1036 | ide_pad_transfer(drive, 0, thislen); |
0041e7c6 | 1037 | else { |
fc8323f7 | 1038 | printk(KERN_ERR PFX "%s: confused, missing data\n", |
0041e7c6 BZ |
1039 | drive->name); |
1040 | blk_dump_rq_flags(rq, rq_data_dir(rq) | |
1041 | ? "cdrom_newpc_intr, write" | |
1042 | : "cdrom_newpc_intr, read"); | |
1043 | } | |
1da177e4 LT |
1044 | break; |
1045 | } | |
1046 | ||
1047 | if (blen > thislen) | |
1048 | blen = thislen; | |
1049 | ||
9567b349 | 1050 | xferfunc(drive, NULL, ptr, blen); |
1da177e4 LT |
1051 | |
1052 | thislen -= blen; | |
1053 | len -= blen; | |
1da177e4 | 1054 | |
0041e7c6 BZ |
1055 | if (blk_fs_request(rq)) { |
1056 | rq->buffer += blen; | |
1057 | rq->nr_sectors -= (blen >> 9); | |
1058 | rq->current_nr_sectors -= (blen >> 9); | |
1059 | rq->sector += (blen >> 9); | |
1060 | ||
1061 | if (rq->current_nr_sectors == 0 && rq->nr_sectors) | |
1062 | cdrom_end_request(drive, 1); | |
1063 | } else { | |
1064 | rq->data_len -= blen; | |
1065 | ||
aaa04c28 KU |
1066 | /* |
1067 | * The request can't be completed until DRQ is cleared. | |
1068 | * So complete the data, but don't complete the request | |
1069 | * using the dummy function for the callback feature | |
1070 | * of blk_end_request_callback(). | |
1071 | */ | |
0041e7c6 BZ |
1072 | if (rq->bio) |
1073 | blk_end_request_callback(rq, 0, blen, | |
aaa04c28 | 1074 | cdrom_newpc_intr_dummy_cb); |
0041e7c6 BZ |
1075 | else |
1076 | rq->data += blen; | |
1077 | } | |
bcd88ac3 AS |
1078 | if (!write && blk_sense_request(rq)) |
1079 | rq->sense_len += blen; | |
1da177e4 LT |
1080 | } |
1081 | ||
5a3ea3b4 | 1082 | /* pad, if necessary */ |
0041e7c6 | 1083 | if (!blk_fs_request(rq) && len > 0) |
ae8789f0 | 1084 | ide_pad_transfer(drive, write, len); |
1da177e4 | 1085 | |
ff1bfbc1 BZ |
1086 | if (blk_pc_request(rq)) { |
1087 | timeout = rq->timeout; | |
ff1bfbc1 BZ |
1088 | } else { |
1089 | timeout = ATAPI_WAIT_PC; | |
0041e7c6 BZ |
1090 | if (!blk_fs_request(rq)) |
1091 | expiry = cdrom_timer_expiry; | |
ff1bfbc1 BZ |
1092 | } |
1093 | ||
1094 | ide_set_handler(drive, cdrom_newpc_intr, timeout, expiry); | |
1da177e4 | 1095 | return ide_started; |
ff1bfbc1 BZ |
1096 | |
1097 | end_request: | |
1098 | if (blk_pc_request(rq)) { | |
14e04c3f KU |
1099 | unsigned int dlen = rq->data_len; |
1100 | ||
1101 | if (dma) | |
1102 | rq->data_len = 0; | |
ff1bfbc1 | 1103 | |
3c8a2cce | 1104 | if (blk_end_request(rq, 0, dlen)) |
ff1bfbc1 | 1105 | BUG(); |
1d0bf587 BZ |
1106 | |
1107 | hwgroup->rq = NULL; | |
ff1bfbc1 BZ |
1108 | } else { |
1109 | if (!uptodate) | |
1110 | rq->cmd_flags |= REQ_FAILED; | |
1111 | cdrom_end_request(drive, uptodate); | |
1112 | } | |
1113 | return ide_stopped; | |
1da177e4 LT |
1114 | } |
1115 | ||
21ea1f0f | 1116 | static ide_startstop_t cdrom_start_rw(ide_drive_t *drive, struct request *rq) |
1da177e4 | 1117 | { |
21ea1f0f BZ |
1118 | struct cdrom_info *cd = drive->driver_data; |
1119 | int write = rq_data_dir(rq) == WRITE; | |
1120 | unsigned short sectors_per_frame = | |
1121 | queue_hardsect_size(drive->queue) >> SECTOR_BITS; | |
1da177e4 | 1122 | |
71b429ca BP |
1123 | ide_debug_log(IDE_DBG_RQ, "Call %s, rq->cmd[0]: 0x%x, write: 0x%x, " |
1124 | "secs_per_frame: %u\n", | |
1125 | __func__, rq->cmd[0], write, sectors_per_frame); | |
fc8323f7 | 1126 | |
21ea1f0f | 1127 | if (write) { |
5a3ea3b4 | 1128 | /* disk has become write protected */ |
b7db9956 | 1129 | if (get_disk_ro(cd->disk)) { |
21ea1f0f BZ |
1130 | cdrom_end_request(drive, 0); |
1131 | return ide_stopped; | |
1132 | } | |
1133 | } else { | |
1134 | /* | |
1135 | * We may be retrying this request after an error. Fix up any | |
1136 | * weirdness which might be present in the request packet. | |
1137 | */ | |
fc8323f7 | 1138 | ide_cd_restore_request(drive, rq); |
1da177e4 LT |
1139 | } |
1140 | ||
5a3ea3b4 | 1141 | /* use DMA, if possible / writes *must* be hardware frame aligned */ |
21ea1f0f BZ |
1142 | if ((rq->nr_sectors & (sectors_per_frame - 1)) || |
1143 | (rq->sector & (sectors_per_frame - 1))) { | |
1144 | if (write) { | |
1145 | cdrom_end_request(drive, 0); | |
1146 | return ide_stopped; | |
1147 | } | |
12469ac0 | 1148 | drive->dma = 0; |
21ea1f0f | 1149 | } else |
12469ac0 | 1150 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
1da177e4 | 1151 | |
21ea1f0f BZ |
1152 | if (write) |
1153 | cd->devinfo.media_written = 1; | |
1da177e4 | 1154 | |
b6ca440a | 1155 | return ide_started; |
1da177e4 LT |
1156 | } |
1157 | ||
1158 | static ide_startstop_t cdrom_do_newpc_cont(ide_drive_t *drive) | |
1159 | { | |
1160 | struct request *rq = HWGROUP(drive)->rq; | |
1161 | ||
1da177e4 LT |
1162 | return cdrom_transfer_packet_command(drive, rq, cdrom_newpc_intr); |
1163 | } | |
1164 | ||
b6ca440a | 1165 | static void cdrom_do_block_pc(ide_drive_t *drive, struct request *rq) |
1da177e4 | 1166 | { |
1da177e4 | 1167 | |
71b429ca BP |
1168 | ide_debug_log(IDE_DBG_PC, "Call %s, rq->cmd[0]: 0x%x, " |
1169 | "rq->cmd_type: 0x%x\n", __func__, rq->cmd[0], | |
fc8323f7 BP |
1170 | rq->cmd_type); |
1171 | ||
c9f56a80 BZ |
1172 | if (blk_pc_request(rq)) |
1173 | rq->cmd_flags |= REQ_QUIET; | |
1174 | else | |
1175 | rq->cmd_flags &= ~REQ_FAILED; | |
1da177e4 | 1176 | |
12469ac0 | 1177 | drive->dma = 0; |
1da177e4 | 1178 | |
5a3ea3b4 | 1179 | /* sg request */ |
e5318b53 FT |
1180 | if (rq->bio || ((rq->cmd_type == REQ_TYPE_ATA_PC) && rq->data_len)) { |
1181 | struct request_queue *q = drive->queue; | |
1182 | unsigned int alignment; | |
efa402d5 | 1183 | char *buf; |
1da177e4 | 1184 | |
e5318b53 | 1185 | if (rq->bio) |
efa402d5 | 1186 | buf = bio_data(rq->bio); |
e5318b53 | 1187 | else |
efa402d5 | 1188 | buf = rq->data; |
e5318b53 | 1189 | |
12469ac0 | 1190 | drive->dma = !!(drive->dev_flags & IDE_DFLAG_USING_DMA); |
1da177e4 LT |
1191 | |
1192 | /* | |
1193 | * check if dma is safe | |
5d9e4ea5 LT |
1194 | * |
1195 | * NOTE! The "len" and "addr" checks should possibly have | |
1196 | * separate masks. | |
1da177e4 | 1197 | */ |
e5318b53 | 1198 | alignment = queue_dma_alignment(q) | q->dma_pad_mask; |
9bd27cba BP |
1199 | if ((unsigned long)buf & alignment |
1200 | || rq->data_len & q->dma_pad_mask | |
efa402d5 | 1201 | || object_is_on_stack(buf)) |
12469ac0 | 1202 | drive->dma = 0; |
1da177e4 | 1203 | } |
1da177e4 LT |
1204 | } |
1205 | ||
99384aea | 1206 | static ide_startstop_t ide_cd_do_request(ide_drive_t *drive, struct request *rq, |
e5e076a3 | 1207 | sector_t block) |
1da177e4 | 1208 | { |
b6ca440a BP |
1209 | ide_handler_t *fn; |
1210 | int xferlen; | |
1da177e4 | 1211 | |
71b429ca BP |
1212 | ide_debug_log(IDE_DBG_RQ, "Call %s, rq->cmd[0]: 0x%x, " |
1213 | "rq->cmd_type: 0x%x, block: %llu\n", | |
1214 | __func__, rq->cmd[0], rq->cmd_type, | |
1215 | (unsigned long long)block); | |
fc8323f7 | 1216 | |
392de1d5 BP |
1217 | xferlen = ide_cd_get_xferlen(rq); |
1218 | ||
1da177e4 | 1219 | if (blk_fs_request(rq)) { |
27c01c2d | 1220 | fn = cdrom_start_rw_cont; |
90eb808e | 1221 | |
27c01c2d BZ |
1222 | if (cdrom_start_rw(drive, rq) == ide_stopped) |
1223 | return ide_stopped; | |
90eb808e | 1224 | |
27c01c2d BZ |
1225 | if (ide_cd_prepare_rw_request(drive, rq) == ide_stopped) |
1226 | return ide_stopped; | |
c9f56a80 | 1227 | } else if (blk_sense_request(rq) || blk_pc_request(rq) || |
cea2885a | 1228 | rq->cmd_type == REQ_TYPE_ATA_PC) { |
b6ca440a | 1229 | fn = cdrom_do_newpc_cont; |
7fcebda5 BP |
1230 | |
1231 | if (!rq->timeout) | |
1232 | rq->timeout = ATAPI_WAIT_PC; | |
1233 | ||
b6ca440a | 1234 | cdrom_do_block_pc(drive, rq); |
4aff5e23 | 1235 | } else if (blk_special_request(rq)) { |
5a3ea3b4 | 1236 | /* right now this can only be a reset... */ |
1da177e4 LT |
1237 | cdrom_end_request(drive, 1); |
1238 | return ide_stopped; | |
ab9d6e33 | 1239 | } else { |
fc8323f7 | 1240 | blk_dump_rq_flags(rq, DRV_NAME " bad flags"); |
ab9d6e33 BP |
1241 | cdrom_end_request(drive, 0); |
1242 | return ide_stopped; | |
1da177e4 | 1243 | } |
b6ca440a BP |
1244 | |
1245 | return cdrom_start_packet_command(drive, xferlen, fn); | |
1da177e4 LT |
1246 | } |
1247 | ||
5a3ea3b4 | 1248 | /* |
1da177e4 LT |
1249 | * Ioctl handling. |
1250 | * | |
5a3ea3b4 BP |
1251 | * Routines which queue packet commands take as a final argument a pointer to a |
1252 | * request_sense struct. If execution of the command results in an error with a | |
1253 | * CHECK CONDITION status, this structure will be filled with the results of the | |
1254 | * subsequent request sense command. The pointer can also be NULL, in which case | |
1255 | * no sense information is returned. | |
1da177e4 | 1256 | */ |
e5e076a3 | 1257 | static void msf_from_bcd(struct atapi_msf *msf) |
1da177e4 | 1258 | { |
fc99856a AB |
1259 | msf->minute = bcd2bin(msf->minute); |
1260 | msf->second = bcd2bin(msf->second); | |
1261 | msf->frame = bcd2bin(msf->frame); | |
1da177e4 LT |
1262 | } |
1263 | ||
f9afd18b | 1264 | int cdrom_check_status(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 | 1265 | { |
1da177e4 LT |
1266 | struct cdrom_info *info = drive->driver_data; |
1267 | struct cdrom_device_info *cdi = &info->devinfo; | |
5f828546 | 1268 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1269 | |
fc8323f7 BP |
1270 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1271 | ||
5f828546 FT |
1272 | memset(cmd, 0, BLK_MAX_CDB); |
1273 | cmd[0] = GPCMD_TEST_UNIT_READY; | |
1da177e4 | 1274 | |
cdf6000d | 1275 | /* |
5a3ea3b4 BP |
1276 | * Sanyo 3 CD changer uses byte 7 of TEST_UNIT_READY to switch CDs |
1277 | * instead of supporting the LOAD_UNLOAD opcode. | |
cdf6000d | 1278 | */ |
5f828546 | 1279 | cmd[7] = cdi->sanyo_slot % 3; |
1da177e4 | 1280 | |
141d3b27 | 1281 | return ide_cd_queue_pc(drive, cmd, 0, NULL, NULL, sense, 0, REQ_QUIET); |
1da177e4 LT |
1282 | } |
1283 | ||
1da177e4 LT |
1284 | static int cdrom_read_capacity(ide_drive_t *drive, unsigned long *capacity, |
1285 | unsigned long *sectors_per_frame, | |
1286 | struct request_sense *sense) | |
1287 | { | |
1288 | struct { | |
141d3b27 HH |
1289 | __be32 lba; |
1290 | __be32 blocklen; | |
1da177e4 LT |
1291 | } capbuf; |
1292 | ||
1293 | int stat; | |
5f828546 FT |
1294 | unsigned char cmd[BLK_MAX_CDB]; |
1295 | unsigned len = sizeof(capbuf); | |
938bb03d | 1296 | u32 blocklen; |
1da177e4 | 1297 | |
fc8323f7 BP |
1298 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1299 | ||
5f828546 FT |
1300 | memset(cmd, 0, BLK_MAX_CDB); |
1301 | cmd[0] = GPCMD_READ_CDVD_CAPACITY; | |
1da177e4 | 1302 | |
5f828546 FT |
1303 | stat = ide_cd_queue_pc(drive, cmd, 0, &capbuf, &len, sense, 0, |
1304 | REQ_QUIET); | |
e8e7b9eb JA |
1305 | if (stat) |
1306 | return stat; | |
1307 | ||
1308 | /* | |
1309 | * Sanity check the given block size | |
1310 | */ | |
938bb03d PT |
1311 | blocklen = be32_to_cpu(capbuf.blocklen); |
1312 | switch (blocklen) { | |
1313 | case 512: | |
1314 | case 1024: | |
1315 | case 2048: | |
1316 | case 4096: | |
e8e7b9eb JA |
1317 | break; |
1318 | default: | |
fc8323f7 BP |
1319 | printk(KERN_ERR PFX "%s: weird block size %u\n", |
1320 | drive->name, blocklen); | |
1321 | printk(KERN_ERR PFX "%s: default to 2kb block size\n", | |
1322 | drive->name); | |
938bb03d | 1323 | blocklen = 2048; |
e8e7b9eb | 1324 | break; |
1da177e4 LT |
1325 | } |
1326 | ||
e8e7b9eb | 1327 | *capacity = 1 + be32_to_cpu(capbuf.lba); |
938bb03d | 1328 | *sectors_per_frame = blocklen >> SECTOR_BITS; |
71b429ca BP |
1329 | |
1330 | ide_debug_log(IDE_DBG_PROBE, "%s: cap: %lu, sectors_per_frame: %lu\n", | |
1331 | __func__, *capacity, *sectors_per_frame); | |
1332 | ||
e8e7b9eb | 1333 | return 0; |
1da177e4 LT |
1334 | } |
1335 | ||
1336 | static int cdrom_read_tocentry(ide_drive_t *drive, int trackno, int msf_flag, | |
1337 | int format, char *buf, int buflen, | |
1338 | struct request_sense *sense) | |
1339 | { | |
5f828546 | 1340 | unsigned char cmd[BLK_MAX_CDB]; |
1da177e4 | 1341 | |
fc8323f7 BP |
1342 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1343 | ||
5f828546 | 1344 | memset(cmd, 0, BLK_MAX_CDB); |
1da177e4 | 1345 | |
5f828546 FT |
1346 | cmd[0] = GPCMD_READ_TOC_PMA_ATIP; |
1347 | cmd[6] = trackno; | |
1348 | cmd[7] = (buflen >> 8); | |
1349 | cmd[8] = (buflen & 0xff); | |
1350 | cmd[9] = (format << 6); | |
1da177e4 LT |
1351 | |
1352 | if (msf_flag) | |
5f828546 | 1353 | cmd[1] = 2; |
1da177e4 | 1354 | |
5f828546 | 1355 | return ide_cd_queue_pc(drive, cmd, 0, buf, &buflen, sense, 0, REQ_QUIET); |
1da177e4 LT |
1356 | } |
1357 | ||
1da177e4 | 1358 | /* Try to read the entire TOC for the disk into our internal buffer. */ |
17802998 | 1359 | int ide_cd_read_toc(ide_drive_t *drive, struct request_sense *sense) |
1da177e4 LT |
1360 | { |
1361 | int stat, ntracks, i; | |
1362 | struct cdrom_info *info = drive->driver_data; | |
1363 | struct cdrom_device_info *cdi = &info->devinfo; | |
1364 | struct atapi_toc *toc = info->toc; | |
1365 | struct { | |
1366 | struct atapi_toc_header hdr; | |
1367 | struct atapi_toc_entry ent; | |
1368 | } ms_tmp; | |
1369 | long last_written; | |
1370 | unsigned long sectors_per_frame = SECTORS_PER_FRAME; | |
1371 | ||
fc8323f7 BP |
1372 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1373 | ||
1da177e4 | 1374 | if (toc == NULL) { |
5a3ea3b4 | 1375 | /* try to allocate space */ |
2a91f3e5 | 1376 | toc = kmalloc(sizeof(struct atapi_toc), GFP_KERNEL); |
1da177e4 | 1377 | if (toc == NULL) { |
fc8323f7 | 1378 | printk(KERN_ERR PFX "%s: No cdrom TOC buffer!\n", |
83c8565d | 1379 | drive->name); |
1da177e4 LT |
1380 | return -ENOMEM; |
1381 | } | |
2a91f3e5 | 1382 | info->toc = toc; |
1da177e4 LT |
1383 | } |
1384 | ||
5a3ea3b4 BP |
1385 | /* |
1386 | * Check to see if the existing data is still valid. If it is, | |
1387 | * just return. | |
1388 | */ | |
1da177e4 LT |
1389 | (void) cdrom_check_status(drive, sense); |
1390 | ||
570f89ea | 1391 | if (drive->atapi_flags & IDE_AFLAG_TOC_VALID) |
1da177e4 LT |
1392 | return 0; |
1393 | ||
5a3ea3b4 | 1394 | /* try to get the total cdrom capacity and sector size */ |
1da177e4 LT |
1395 | stat = cdrom_read_capacity(drive, &toc->capacity, §ors_per_frame, |
1396 | sense); | |
1397 | if (stat) | |
1398 | toc->capacity = 0x1fffff; | |
1399 | ||
1400 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
5a3ea3b4 | 1401 | /* save a private copy of the TOC capacity for error handling */ |
dbe217af AC |
1402 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1403 | ||
1da177e4 LT |
1404 | blk_queue_hardsect_size(drive->queue, |
1405 | sectors_per_frame << SECTOR_BITS); | |
1406 | ||
5a3ea3b4 | 1407 | /* first read just the header, so we know how long the TOC is */ |
1da177e4 LT |
1408 | stat = cdrom_read_tocentry(drive, 0, 1, 0, (char *) &toc->hdr, |
1409 | sizeof(struct atapi_toc_header), sense); | |
2a91f3e5 JJ |
1410 | if (stat) |
1411 | return stat; | |
1da177e4 | 1412 | |
570f89ea | 1413 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1414 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1415 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1416 | } |
1da177e4 LT |
1417 | |
1418 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; | |
1419 | if (ntracks <= 0) | |
1420 | return -EIO; | |
1421 | if (ntracks > MAX_TRACKS) | |
1422 | ntracks = MAX_TRACKS; | |
1423 | ||
5a3ea3b4 | 1424 | /* now read the whole schmeer */ |
1da177e4 LT |
1425 | stat = cdrom_read_tocentry(drive, toc->hdr.first_track, 1, 0, |
1426 | (char *)&toc->hdr, | |
1427 | sizeof(struct atapi_toc_header) + | |
1428 | (ntracks + 1) * | |
1429 | sizeof(struct atapi_toc_entry), sense); | |
1430 | ||
1431 | if (stat && toc->hdr.first_track > 1) { | |
5a3ea3b4 BP |
1432 | /* |
1433 | * Cds with CDI tracks only don't have any TOC entries, despite | |
1434 | * of this the returned values are | |
1435 | * first_track == last_track = number of CDI tracks + 1, | |
1436 | * so that this case is indistinguishable from the same layout | |
1437 | * plus an additional audio track. If we get an error for the | |
1438 | * regular case, we assume a CDI without additional audio | |
1439 | * tracks. In this case the readable TOC is empty (CDI tracks | |
1440 | * are not included) and only holds the Leadout entry. | |
1441 | * | |
1442 | * Heiko Eißfeldt. | |
1443 | */ | |
1da177e4 LT |
1444 | ntracks = 0; |
1445 | stat = cdrom_read_tocentry(drive, CDROM_LEADOUT, 1, 0, | |
1446 | (char *)&toc->hdr, | |
1447 | sizeof(struct atapi_toc_header) + | |
1448 | (ntracks + 1) * | |
1449 | sizeof(struct atapi_toc_entry), | |
1450 | sense); | |
cdf6000d | 1451 | if (stat) |
1da177e4 | 1452 | return stat; |
cdf6000d | 1453 | |
570f89ea | 1454 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1455 | toc->hdr.first_track = (u8)bin2bcd(CDROM_LEADOUT); |
1456 | toc->hdr.last_track = (u8)bin2bcd(CDROM_LEADOUT); | |
cdf6000d | 1457 | } else { |
1da177e4 LT |
1458 | toc->hdr.first_track = CDROM_LEADOUT; |
1459 | toc->hdr.last_track = CDROM_LEADOUT; | |
1460 | } | |
1461 | } | |
1462 | ||
1463 | if (stat) | |
1464 | return stat; | |
1465 | ||
7eb43fd2 | 1466 | toc->hdr.toc_length = be16_to_cpu(toc->hdr.toc_length); |
1da177e4 | 1467 | |
570f89ea | 1468 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) { |
fc99856a AB |
1469 | toc->hdr.first_track = bcd2bin(toc->hdr.first_track); |
1470 | toc->hdr.last_track = bcd2bin(toc->hdr.last_track); | |
1da177e4 | 1471 | } |
1da177e4 | 1472 | |
cdf6000d | 1473 | for (i = 0; i <= ntracks; i++) { |
570f89ea BP |
1474 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
1475 | if (drive->atapi_flags & IDE_AFLAG_TOCTRACKS_AS_BCD) | |
fc99856a | 1476 | toc->ent[i].track = bcd2bin(toc->ent[i].track); |
1da177e4 LT |
1477 | msf_from_bcd(&toc->ent[i].addr.msf); |
1478 | } | |
9ce70fb2 PC |
1479 | toc->ent[i].addr.lba = msf_to_lba(toc->ent[i].addr.msf.minute, |
1480 | toc->ent[i].addr.msf.second, | |
1481 | toc->ent[i].addr.msf.frame); | |
1da177e4 LT |
1482 | } |
1483 | ||
1da177e4 | 1484 | if (toc->hdr.first_track != CDROM_LEADOUT) { |
5a3ea3b4 | 1485 | /* read the multisession information */ |
1da177e4 LT |
1486 | stat = cdrom_read_tocentry(drive, 0, 0, 1, (char *)&ms_tmp, |
1487 | sizeof(ms_tmp), sense); | |
2a91f3e5 JJ |
1488 | if (stat) |
1489 | return stat; | |
1da177e4 LT |
1490 | |
1491 | toc->last_session_lba = be32_to_cpu(ms_tmp.ent.addr.lba); | |
1492 | } else { | |
e5e076a3 BP |
1493 | ms_tmp.hdr.last_track = CDROM_LEADOUT; |
1494 | ms_tmp.hdr.first_track = ms_tmp.hdr.last_track; | |
1da177e4 LT |
1495 | toc->last_session_lba = msf_to_lba(0, 2, 0); /* 0m 2s 0f */ |
1496 | } | |
1497 | ||
570f89ea | 1498 | if (drive->atapi_flags & IDE_AFLAG_TOCADDR_AS_BCD) { |
5a3ea3b4 | 1499 | /* re-read multisession information using MSF format */ |
1da177e4 LT |
1500 | stat = cdrom_read_tocentry(drive, 0, 1, 1, (char *)&ms_tmp, |
1501 | sizeof(ms_tmp), sense); | |
1502 | if (stat) | |
1503 | return stat; | |
1504 | ||
9ce70fb2 | 1505 | msf_from_bcd(&ms_tmp.ent.addr.msf); |
1da177e4 | 1506 | toc->last_session_lba = msf_to_lba(ms_tmp.ent.addr.msf.minute, |
9ce70fb2 | 1507 | ms_tmp.ent.addr.msf.second, |
1da177e4 LT |
1508 | ms_tmp.ent.addr.msf.frame); |
1509 | } | |
1da177e4 LT |
1510 | |
1511 | toc->xa_flag = (ms_tmp.hdr.first_track != ms_tmp.hdr.last_track); | |
1512 | ||
5a3ea3b4 | 1513 | /* now try to get the total cdrom capacity */ |
1da177e4 LT |
1514 | stat = cdrom_get_last_written(cdi, &last_written); |
1515 | if (!stat && (last_written > toc->capacity)) { | |
1516 | toc->capacity = last_written; | |
1517 | set_capacity(info->disk, toc->capacity * sectors_per_frame); | |
dbe217af | 1518 | drive->probed_capacity = toc->capacity * sectors_per_frame; |
1da177e4 LT |
1519 | } |
1520 | ||
1521 | /* Remember that we've read this stuff. */ | |
570f89ea | 1522 | drive->atapi_flags |= IDE_AFLAG_TOC_VALID; |
1da177e4 LT |
1523 | |
1524 | return 0; | |
1525 | } | |
1526 | ||
17802998 | 1527 | int ide_cdrom_get_capabilities(ide_drive_t *drive, u8 *buf) |
9235e68b EP |
1528 | { |
1529 | struct cdrom_info *info = drive->driver_data; | |
1530 | struct cdrom_device_info *cdi = &info->devinfo; | |
1531 | struct packet_command cgc; | |
455d80a9 | 1532 | int stat, attempts = 3, size = ATAPI_CAPABILITIES_PAGE_SIZE; |
9235e68b | 1533 | |
fc8323f7 BP |
1534 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1535 | ||
570f89ea | 1536 | if ((drive->atapi_flags & IDE_AFLAG_FULL_CAPS_PAGE) == 0) |
455d80a9 | 1537 | size -= ATAPI_CAPABILITIES_PAGE_PAD_SIZE; |
9235e68b | 1538 | |
455d80a9 | 1539 | init_cdrom_command(&cgc, buf, size, CGC_DATA_UNKNOWN); |
5a3ea3b4 BP |
1540 | do { |
1541 | /* we seem to get stat=0x01,err=0x00 the first time (??) */ | |
9235e68b EP |
1542 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CAPABILITIES_PAGE, 0); |
1543 | if (!stat) | |
1544 | break; | |
1545 | } while (--attempts); | |
1546 | return stat; | |
1547 | } | |
1548 | ||
17802998 | 1549 | void ide_cdrom_update_speed(ide_drive_t *drive, u8 *buf) |
9235e68b | 1550 | { |
4fe67178 | 1551 | struct cdrom_info *cd = drive->driver_data; |
481c8c64 BZ |
1552 | u16 curspeed, maxspeed; |
1553 | ||
fc8323f7 BP |
1554 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1555 | ||
570f89ea | 1556 | if (drive->atapi_flags & IDE_AFLAG_LE_SPEED_FIELDS) { |
141d3b27 HH |
1557 | curspeed = le16_to_cpup((__le16 *)&buf[8 + 14]); |
1558 | maxspeed = le16_to_cpup((__le16 *)&buf[8 + 8]); | |
9235e68b | 1559 | } else { |
141d3b27 HH |
1560 | curspeed = be16_to_cpup((__be16 *)&buf[8 + 14]); |
1561 | maxspeed = be16_to_cpup((__be16 *)&buf[8 + 8]); | |
9235e68b | 1562 | } |
481c8c64 | 1563 | |
71b429ca BP |
1564 | ide_debug_log(IDE_DBG_PROBE, "%s: curspeed: %u, maxspeed: %u\n", |
1565 | __func__, curspeed, maxspeed); | |
1566 | ||
2bc4cf2d BZ |
1567 | cd->current_speed = (curspeed + (176/2)) / 176; |
1568 | cd->max_speed = (maxspeed + (176/2)) / 176; | |
9235e68b EP |
1569 | } |
1570 | ||
20e7f7ef BZ |
1571 | #define IDE_CD_CAPABILITIES \ |
1572 | (CDC_CLOSE_TRAY | CDC_OPEN_TRAY | CDC_LOCK | CDC_SELECT_SPEED | \ | |
1573 | CDC_SELECT_DISC | CDC_MULTI_SESSION | CDC_MCN | CDC_MEDIA_CHANGED | \ | |
1574 | CDC_PLAY_AUDIO | CDC_RESET | CDC_DRIVE_STATUS | CDC_CD_R | \ | |
1575 | CDC_CD_RW | CDC_DVD | CDC_DVD_R | CDC_DVD_RAM | CDC_GENERIC_PACKET | \ | |
1576 | CDC_MO_DRIVE | CDC_MRW | CDC_MRW_W | CDC_RAM) | |
1da177e4 | 1577 | |
1da177e4 LT |
1578 | static struct cdrom_device_ops ide_cdrom_dops = { |
1579 | .open = ide_cdrom_open_real, | |
1580 | .release = ide_cdrom_release_real, | |
1581 | .drive_status = ide_cdrom_drive_status, | |
1582 | .media_changed = ide_cdrom_check_media_change_real, | |
1583 | .tray_move = ide_cdrom_tray_move, | |
1584 | .lock_door = ide_cdrom_lock_door, | |
1585 | .select_speed = ide_cdrom_select_speed, | |
1586 | .get_last_session = ide_cdrom_get_last_session, | |
1587 | .get_mcn = ide_cdrom_get_mcn, | |
1588 | .reset = ide_cdrom_reset, | |
1589 | .audio_ioctl = ide_cdrom_audio_ioctl, | |
20e7f7ef | 1590 | .capability = IDE_CD_CAPABILITIES, |
1da177e4 LT |
1591 | .generic_packet = ide_cdrom_packet, |
1592 | }; | |
1593 | ||
9ce70fb2 | 1594 | static int ide_cdrom_register(ide_drive_t *drive, int nslots) |
1da177e4 LT |
1595 | { |
1596 | struct cdrom_info *info = drive->driver_data; | |
1597 | struct cdrom_device_info *devinfo = &info->devinfo; | |
1598 | ||
fc8323f7 BP |
1599 | ide_debug_log(IDE_DBG_PROBE, "Call %s, nslots: %d\n", __func__, nslots); |
1600 | ||
1da177e4 | 1601 | devinfo->ops = &ide_cdrom_dops; |
2bc4cf2d | 1602 | devinfo->speed = info->current_speed; |
1da177e4 | 1603 | devinfo->capacity = nslots; |
2a91f3e5 | 1604 | devinfo->handle = drive; |
1da177e4 | 1605 | strcpy(devinfo->name, drive->name); |
1da177e4 | 1606 | |
570f89ea | 1607 | if (drive->atapi_flags & IDE_AFLAG_NO_SPEED_SELECT) |
3cbd814e BZ |
1608 | devinfo->mask |= CDC_SELECT_SPEED; |
1609 | ||
1da177e4 LT |
1610 | devinfo->disk = info->disk; |
1611 | return register_cdrom(devinfo); | |
1612 | } | |
1613 | ||
e5e076a3 | 1614 | static int ide_cdrom_probe_capabilities(ide_drive_t *drive) |
1da177e4 | 1615 | { |
4fe67178 BZ |
1616 | struct cdrom_info *cd = drive->driver_data; |
1617 | struct cdrom_device_info *cdi = &cd->devinfo; | |
455d80a9 BZ |
1618 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; |
1619 | mechtype_t mechtype; | |
1da177e4 LT |
1620 | int nslots = 1; |
1621 | ||
fc8323f7 BP |
1622 | ide_debug_log(IDE_DBG_PROBE, "Call %s, drive->media: 0x%x, " |
1623 | "drive->atapi_flags: 0x%lx\n", __func__, drive->media, | |
1624 | drive->atapi_flags); | |
1625 | ||
3f1b86d8 BZ |
1626 | cdi->mask = (CDC_CD_R | CDC_CD_RW | CDC_DVD | CDC_DVD_R | |
1627 | CDC_DVD_RAM | CDC_SELECT_DISC | CDC_PLAY_AUDIO | | |
1628 | CDC_MO_DRIVE | CDC_RAM); | |
1629 | ||
1da177e4 | 1630 | if (drive->media == ide_optical) { |
3f1b86d8 | 1631 | cdi->mask &= ~(CDC_MO_DRIVE | CDC_RAM); |
fc8323f7 | 1632 | printk(KERN_ERR PFX "%s: ATAPI magneto-optical drive\n", |
83c8565d | 1633 | drive->name); |
1da177e4 LT |
1634 | return nslots; |
1635 | } | |
1636 | ||
570f89ea BP |
1637 | if (drive->atapi_flags & IDE_AFLAG_PRE_ATAPI12) { |
1638 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; | |
3f1b86d8 | 1639 | cdi->mask &= ~CDC_PLAY_AUDIO; |
1da177e4 LT |
1640 | return nslots; |
1641 | } | |
1642 | ||
1643 | /* | |
5a3ea3b4 BP |
1644 | * We have to cheat a little here. the packet will eventually be queued |
1645 | * with ide_cdrom_packet(), which extracts the drive from cdi->handle. | |
1646 | * Since this device hasn't been registered with the Uniform layer yet, | |
1647 | * it can't do this. Same goes for cdi->ops. | |
1da177e4 | 1648 | */ |
2a91f3e5 | 1649 | cdi->handle = drive; |
1da177e4 LT |
1650 | cdi->ops = &ide_cdrom_dops; |
1651 | ||
455d80a9 | 1652 | if (ide_cdrom_get_capabilities(drive, buf)) |
1da177e4 LT |
1653 | return 0; |
1654 | ||
455d80a9 | 1655 | if ((buf[8 + 6] & 0x01) == 0) |
42619d35 | 1656 | drive->dev_flags &= ~IDE_DFLAG_DOORLOCKING; |
455d80a9 | 1657 | if (buf[8 + 6] & 0x08) |
570f89ea | 1658 | drive->atapi_flags &= ~IDE_AFLAG_NO_EJECT; |
455d80a9 | 1659 | if (buf[8 + 3] & 0x01) |
3f1b86d8 | 1660 | cdi->mask &= ~CDC_CD_R; |
455d80a9 | 1661 | if (buf[8 + 3] & 0x02) |
3f1b86d8 | 1662 | cdi->mask &= ~(CDC_CD_RW | CDC_RAM); |
455d80a9 | 1663 | if (buf[8 + 2] & 0x38) |
3f1b86d8 | 1664 | cdi->mask &= ~CDC_DVD; |
455d80a9 | 1665 | if (buf[8 + 3] & 0x20) |
3f1b86d8 | 1666 | cdi->mask &= ~(CDC_DVD_RAM | CDC_RAM); |
455d80a9 | 1667 | if (buf[8 + 3] & 0x10) |
3f1b86d8 | 1668 | cdi->mask &= ~CDC_DVD_R; |
570f89ea | 1669 | if ((buf[8 + 4] & 0x01) || (drive->atapi_flags & IDE_AFLAG_PLAY_AUDIO_OK)) |
3f1b86d8 | 1670 | cdi->mask &= ~CDC_PLAY_AUDIO; |
455d80a9 BZ |
1671 | |
1672 | mechtype = buf[8 + 6] >> 5; | |
f20f2586 BP |
1673 | if (mechtype == mechtype_caddy || |
1674 | mechtype == mechtype_popup || | |
1675 | (drive->atapi_flags & IDE_AFLAG_NO_AUTOCLOSE)) | |
3f1b86d8 | 1676 | cdi->mask |= CDC_CLOSE_TRAY; |
1da177e4 | 1677 | |
1da177e4 | 1678 | if (cdi->sanyo_slot > 0) { |
3f1b86d8 | 1679 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 | 1680 | nslots = 3; |
cdf6000d BZ |
1681 | } else if (mechtype == mechtype_individual_changer || |
1682 | mechtype == mechtype_cartridge_changer) { | |
2609d06d BZ |
1683 | nslots = cdrom_number_of_slots(cdi); |
1684 | if (nslots > 1) | |
3f1b86d8 | 1685 | cdi->mask &= ~CDC_SELECT_DISC; |
1da177e4 LT |
1686 | } |
1687 | ||
455d80a9 | 1688 | ide_cdrom_update_speed(drive, buf); |
4fe67178 | 1689 | |
fc8323f7 | 1690 | printk(KERN_INFO PFX "%s: ATAPI", drive->name); |
4fe67178 BZ |
1691 | |
1692 | /* don't print speed if the drive reported 0 */ | |
2bc4cf2d BZ |
1693 | if (cd->max_speed) |
1694 | printk(KERN_CONT " %dX", cd->max_speed); | |
4fe67178 | 1695 | |
3f1b86d8 | 1696 | printk(KERN_CONT " %s", (cdi->mask & CDC_DVD) ? "CD-ROM" : "DVD-ROM"); |
1da177e4 | 1697 | |
3f1b86d8 BZ |
1698 | if ((cdi->mask & CDC_DVD_R) == 0 || (cdi->mask & CDC_DVD_RAM) == 0) |
1699 | printk(KERN_CONT " DVD%s%s", | |
1700 | (cdi->mask & CDC_DVD_R) ? "" : "-R", | |
419a5b67 | 1701 | (cdi->mask & CDC_DVD_RAM) ? "" : "/RAM"); |
1da177e4 | 1702 | |
3f1b86d8 BZ |
1703 | if ((cdi->mask & CDC_CD_R) == 0 || (cdi->mask & CDC_CD_RW) == 0) |
1704 | printk(KERN_CONT " CD%s%s", | |
1705 | (cdi->mask & CDC_CD_R) ? "" : "-R", | |
1706 | (cdi->mask & CDC_CD_RW) ? "" : "/RW"); | |
1da177e4 | 1707 | |
3f1b86d8 BZ |
1708 | if ((cdi->mask & CDC_SELECT_DISC) == 0) |
1709 | printk(KERN_CONT " changer w/%d slots", nslots); | |
1710 | else | |
1711 | printk(KERN_CONT " drive"); | |
1da177e4 | 1712 | |
fc8323f7 BP |
1713 | printk(KERN_CONT ", %dkB Cache\n", |
1714 | be16_to_cpup((__be16 *)&buf[8 + 12])); | |
1da177e4 LT |
1715 | |
1716 | return nslots; | |
1717 | } | |
1718 | ||
5a3ea3b4 | 1719 | /* standard prep_rq_fn that builds 10 byte cmds */ |
165125e1 | 1720 | static int ide_cdrom_prep_fs(struct request_queue *q, struct request *rq) |
1da177e4 LT |
1721 | { |
1722 | int hard_sect = queue_hardsect_size(q); | |
1723 | long block = (long)rq->hard_sector / (hard_sect >> 9); | |
1724 | unsigned long blocks = rq->hard_nr_sectors / (hard_sect >> 9); | |
1725 | ||
d34c87e4 | 1726 | memset(rq->cmd, 0, BLK_MAX_CDB); |
1da177e4 LT |
1727 | |
1728 | if (rq_data_dir(rq) == READ) | |
1729 | rq->cmd[0] = GPCMD_READ_10; | |
1730 | else | |
1731 | rq->cmd[0] = GPCMD_WRITE_10; | |
1732 | ||
1733 | /* | |
1734 | * fill in lba | |
1735 | */ | |
1736 | rq->cmd[2] = (block >> 24) & 0xff; | |
1737 | rq->cmd[3] = (block >> 16) & 0xff; | |
1738 | rq->cmd[4] = (block >> 8) & 0xff; | |
1739 | rq->cmd[5] = block & 0xff; | |
1740 | ||
1741 | /* | |
1742 | * and transfer length | |
1743 | */ | |
1744 | rq->cmd[7] = (blocks >> 8) & 0xff; | |
1745 | rq->cmd[8] = blocks & 0xff; | |
1746 | rq->cmd_len = 10; | |
1747 | return BLKPREP_OK; | |
1748 | } | |
1749 | ||
1750 | /* | |
1751 | * Most of the SCSI commands are supported directly by ATAPI devices. | |
1752 | * This transform handles the few exceptions. | |
1753 | */ | |
1754 | static int ide_cdrom_prep_pc(struct request *rq) | |
1755 | { | |
1756 | u8 *c = rq->cmd; | |
1757 | ||
5a3ea3b4 | 1758 | /* transform 6-byte read/write commands to the 10-byte version */ |
1da177e4 LT |
1759 | if (c[0] == READ_6 || c[0] == WRITE_6) { |
1760 | c[8] = c[4]; | |
1761 | c[5] = c[3]; | |
1762 | c[4] = c[2]; | |
1763 | c[3] = c[1] & 0x1f; | |
1764 | c[2] = 0; | |
1765 | c[1] &= 0xe0; | |
1766 | c[0] += (READ_10 - READ_6); | |
1767 | rq->cmd_len = 10; | |
1768 | return BLKPREP_OK; | |
1769 | } | |
1770 | ||
1771 | /* | |
1772 | * it's silly to pretend we understand 6-byte sense commands, just | |
1773 | * reject with ILLEGAL_REQUEST and the caller should take the | |
1774 | * appropriate action | |
1775 | */ | |
1776 | if (c[0] == MODE_SENSE || c[0] == MODE_SELECT) { | |
1777 | rq->errors = ILLEGAL_REQUEST; | |
1778 | return BLKPREP_KILL; | |
1779 | } | |
9ce70fb2 | 1780 | |
1da177e4 LT |
1781 | return BLKPREP_OK; |
1782 | } | |
1783 | ||
165125e1 | 1784 | static int ide_cdrom_prep_fn(struct request_queue *q, struct request *rq) |
1da177e4 | 1785 | { |
4aff5e23 | 1786 | if (blk_fs_request(rq)) |
1da177e4 | 1787 | return ide_cdrom_prep_fs(q, rq); |
4aff5e23 | 1788 | else if (blk_pc_request(rq)) |
1da177e4 LT |
1789 | return ide_cdrom_prep_pc(rq); |
1790 | ||
1791 | return 0; | |
1792 | } | |
1793 | ||
e59724c7 BZ |
1794 | struct cd_list_entry { |
1795 | const char *id_model; | |
1796 | const char *id_firmware; | |
1797 | unsigned int cd_flags; | |
1798 | }; | |
1799 | ||
5e657a9e BP |
1800 | #ifdef CONFIG_IDE_PROC_FS |
1801 | static sector_t ide_cdrom_capacity(ide_drive_t *drive) | |
1802 | { | |
1803 | unsigned long capacity, sectors_per_frame; | |
1804 | ||
1805 | if (cdrom_read_capacity(drive, &capacity, §ors_per_frame, NULL)) | |
1806 | return 0; | |
1807 | ||
1808 | return capacity * sectors_per_frame; | |
1809 | } | |
1810 | ||
e5e076a3 BP |
1811 | static int proc_idecd_read_capacity(char *page, char **start, off_t off, |
1812 | int count, int *eof, void *data) | |
5e657a9e BP |
1813 | { |
1814 | ide_drive_t *drive = data; | |
1815 | int len; | |
1816 | ||
1817 | len = sprintf(page, "%llu\n", (long long)ide_cdrom_capacity(drive)); | |
1818 | PROC_IDE_READ_RETURN(page, start, off, count, eof, len); | |
1819 | } | |
1820 | ||
1821 | static ide_proc_entry_t idecd_proc[] = { | |
1822 | { "capacity", S_IFREG|S_IRUGO, proc_idecd_read_capacity, NULL }, | |
1823 | { NULL, 0, NULL, NULL } | |
1824 | }; | |
1825 | ||
79cb3803 BZ |
1826 | static ide_proc_entry_t *ide_cd_proc_entries(ide_drive_t *drive) |
1827 | { | |
1828 | return idecd_proc; | |
1829 | } | |
1830 | ||
1831 | static const struct ide_proc_devset *ide_cd_proc_devsets(ide_drive_t *drive) | |
1832 | { | |
519d6808 | 1833 | return NULL; |
79cb3803 | 1834 | } |
5e657a9e BP |
1835 | #endif |
1836 | ||
e59724c7 BZ |
1837 | static const struct cd_list_entry ide_cd_quirks_list[] = { |
1838 | /* Limit transfer size per interrupt. */ | |
570f89ea BP |
1839 | { "SAMSUNG CD-ROM SCR-2430", NULL, IDE_AFLAG_LIMIT_NFRAMES }, |
1840 | { "SAMSUNG CD-ROM SCR-2432", NULL, IDE_AFLAG_LIMIT_NFRAMES }, | |
e59724c7 | 1841 | /* SCR-3231 doesn't support the SET_CD_SPEED command. */ |
570f89ea | 1842 | { "SAMSUNG CD-ROM SCR-3231", NULL, IDE_AFLAG_NO_SPEED_SELECT }, |
e59724c7 | 1843 | /* Old NEC260 (not R) was released before ATAPI 1.2 spec. */ |
570f89ea BP |
1844 | { "NEC CD-ROM DRIVE:260", "1.01", IDE_AFLAG_TOCADDR_AS_BCD | |
1845 | IDE_AFLAG_PRE_ATAPI12, }, | |
e59724c7 | 1846 | /* Vertos 300, some versions of this drive like to talk BCD. */ |
570f89ea | 1847 | { "V003S0DS", NULL, IDE_AFLAG_VERTOS_300_SSD, }, |
e59724c7 | 1848 | /* Vertos 600 ESD. */ |
570f89ea | 1849 | { "V006E0DS", NULL, IDE_AFLAG_VERTOS_600_ESD, }, |
e59724c7 BZ |
1850 | /* |
1851 | * Sanyo 3 CD changer uses a non-standard command for CD changing | |
1852 | * (by default standard ATAPI support for CD changers is used). | |
1853 | */ | |
570f89ea BP |
1854 | { "CD-ROM CDR-C3 G", NULL, IDE_AFLAG_SANYO_3CD }, |
1855 | { "CD-ROM CDR-C3G", NULL, IDE_AFLAG_SANYO_3CD }, | |
1856 | { "CD-ROM CDR_C36", NULL, IDE_AFLAG_SANYO_3CD }, | |
e59724c7 | 1857 | /* Stingray 8X CD-ROM. */ |
570f89ea | 1858 | { "STINGRAY 8422 IDE 8X CD-ROM 7-27-95", NULL, IDE_AFLAG_PRE_ATAPI12 }, |
e59724c7 BZ |
1859 | /* |
1860 | * ACER 50X CD-ROM and WPI 32X CD-ROM require the full spec length | |
1861 | * mode sense page capabilities size, but older drives break. | |
1862 | */ | |
570f89ea BP |
1863 | { "ATAPI CD ROM DRIVE 50X MAX", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, |
1864 | { "WPI CDS-32X", NULL, IDE_AFLAG_FULL_CAPS_PAGE }, | |
e59724c7 | 1865 | /* ACER/AOpen 24X CD-ROM has the speed fields byte-swapped. */ |
570f89ea | 1866 | { "", "241N", IDE_AFLAG_LE_SPEED_FIELDS }, |
e59724c7 BZ |
1867 | /* |
1868 | * Some drives used by Apple don't advertise audio play | |
1869 | * but they do support reading TOC & audio datas. | |
1870 | */ | |
570f89ea BP |
1871 | { "MATSHITADVD-ROM SR-8187", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
1872 | { "MATSHITADVD-ROM SR-8186", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1873 | { "MATSHITADVD-ROM SR-8176", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1874 | { "MATSHITADVD-ROM SR-8174", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
1875 | { "Optiarc DVD RW AD-5200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, | |
f3e85ee7 | 1876 | { "Optiarc DVD RW AD-7200A", NULL, IDE_AFLAG_PLAY_AUDIO_OK }, |
f20f2586 | 1877 | { "Optiarc DVD RW AD-7543A", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
64c2eae2 | 1878 | { "TEAC CD-ROM CD-224E", NULL, IDE_AFLAG_NO_AUTOCLOSE }, |
e59724c7 BZ |
1879 | { NULL, NULL, 0 } |
1880 | }; | |
1881 | ||
4dde4492 | 1882 | static unsigned int ide_cd_flags(u16 *id) |
e59724c7 BZ |
1883 | { |
1884 | const struct cd_list_entry *cle = ide_cd_quirks_list; | |
1885 | ||
1886 | while (cle->id_model) { | |
4dde4492 | 1887 | if (strcmp(cle->id_model, (char *)&id[ATA_ID_PROD]) == 0 && |
e59724c7 | 1888 | (cle->id_firmware == NULL || |
4dde4492 | 1889 | strstr((char *)&id[ATA_ID_FW_REV], cle->id_firmware))) |
e59724c7 BZ |
1890 | return cle->cd_flags; |
1891 | cle++; | |
1892 | } | |
1893 | ||
1894 | return 0; | |
1895 | } | |
1896 | ||
e5e076a3 | 1897 | static int ide_cdrom_setup(ide_drive_t *drive) |
1da177e4 | 1898 | { |
4fe67178 BZ |
1899 | struct cdrom_info *cd = drive->driver_data; |
1900 | struct cdrom_device_info *cdi = &cd->devinfo; | |
4dde4492 BZ |
1901 | u16 *id = drive->id; |
1902 | char *fw_rev = (char *)&id[ATA_ID_FW_REV]; | |
1da177e4 LT |
1903 | int nslots; |
1904 | ||
fc8323f7 BP |
1905 | ide_debug_log(IDE_DBG_PROBE, "Call %s\n", __func__); |
1906 | ||
1da177e4 LT |
1907 | blk_queue_prep_rq(drive->queue, ide_cdrom_prep_fn); |
1908 | blk_queue_dma_alignment(drive->queue, 31); | |
e5318b53 | 1909 | blk_queue_update_dma_pad(drive->queue, 15); |
1da177e4 LT |
1910 | drive->queue->unplug_delay = (1 * HZ) / 1000; |
1911 | if (!drive->queue->unplug_delay) | |
1912 | drive->queue->unplug_delay = 1; | |
1913 | ||
fe11edfa BZ |
1914 | drive->dev_flags |= IDE_DFLAG_MEDIA_CHANGED; |
1915 | drive->atapi_flags = IDE_AFLAG_NO_EJECT | ide_cd_flags(id); | |
1da177e4 | 1916 | |
570f89ea | 1917 | if ((drive->atapi_flags & IDE_AFLAG_VERTOS_300_SSD) && |
4dde4492 | 1918 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1919 | drive->atapi_flags |= (IDE_AFLAG_TOCTRACKS_AS_BCD | |
1920 | IDE_AFLAG_TOCADDR_AS_BCD); | |
1921 | else if ((drive->atapi_flags & IDE_AFLAG_VERTOS_600_ESD) && | |
4dde4492 | 1922 | fw_rev[4] == '1' && fw_rev[6] <= '2') |
570f89ea BP |
1923 | drive->atapi_flags |= IDE_AFLAG_TOCTRACKS_AS_BCD; |
1924 | else if (drive->atapi_flags & IDE_AFLAG_SANYO_3CD) | |
5a3ea3b4 BP |
1925 | /* 3 => use CD in slot 0 */ |
1926 | cdi->sanyo_slot = 3; | |
1da177e4 | 1927 | |
9ce70fb2 | 1928 | nslots = ide_cdrom_probe_capabilities(drive); |
1da177e4 | 1929 | |
5a3ea3b4 | 1930 | /* set correct block size */ |
1da177e4 LT |
1931 | blk_queue_hardsect_size(drive->queue, CD_FRAMESIZE); |
1932 | ||
1da177e4 | 1933 | if (ide_cdrom_register(drive, nslots)) { |
fc8323f7 | 1934 | printk(KERN_ERR PFX "%s: %s failed to register device with the" |
83c8565d | 1935 | " cdrom driver.\n", drive->name, __func__); |
4fe67178 | 1936 | cd->devinfo.handle = NULL; |
1da177e4 LT |
1937 | return 1; |
1938 | } | |
1e874f44 BZ |
1939 | |
1940 | ide_proc_register_driver(drive, cd->driver); | |
1da177e4 LT |
1941 | return 0; |
1942 | } | |
1943 | ||
4031bbe4 | 1944 | static void ide_cd_remove(ide_drive_t *drive) |
1da177e4 LT |
1945 | { |
1946 | struct cdrom_info *info = drive->driver_data; | |
1947 | ||
fc8323f7 BP |
1948 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1949 | ||
7662d046 | 1950 | ide_proc_unregister_driver(drive, info->driver); |
1da177e4 LT |
1951 | |
1952 | del_gendisk(info->disk); | |
1953 | ||
1954 | ide_cd_put(info); | |
1da177e4 LT |
1955 | } |
1956 | ||
1957 | static void ide_cd_release(struct kref *kref) | |
1958 | { | |
5aeddf90 | 1959 | struct cdrom_info *info = to_ide_drv(kref, cdrom_info); |
1da177e4 LT |
1960 | struct cdrom_device_info *devinfo = &info->devinfo; |
1961 | ide_drive_t *drive = info->drive; | |
1962 | struct gendisk *g = info->disk; | |
1963 | ||
fc8323f7 BP |
1964 | ide_debug_log(IDE_DBG_FUNC, "Call %s\n", __func__); |
1965 | ||
6044ec88 | 1966 | kfree(info->toc); |
0a0c4114 AM |
1967 | if (devinfo->handle == drive) |
1968 | unregister_cdrom(devinfo); | |
1da177e4 LT |
1969 | drive->driver_data = NULL; |
1970 | blk_queue_prep_rq(drive->queue, NULL); | |
1971 | g->private_data = NULL; | |
1972 | put_disk(g); | |
1973 | kfree(info); | |
1974 | } | |
1975 | ||
4031bbe4 | 1976 | static int ide_cd_probe(ide_drive_t *); |
1da177e4 | 1977 | |
1da177e4 | 1978 | static ide_driver_t ide_cdrom_driver = { |
8604affd | 1979 | .gen_driver = { |
4ef3b8f4 | 1980 | .owner = THIS_MODULE, |
8604affd BZ |
1981 | .name = "ide-cdrom", |
1982 | .bus = &ide_bus_type, | |
8604affd | 1983 | }, |
4031bbe4 RK |
1984 | .probe = ide_cd_probe, |
1985 | .remove = ide_cd_remove, | |
1da177e4 | 1986 | .version = IDECD_VERSION, |
99384aea | 1987 | .do_request = ide_cd_do_request, |
1da177e4 LT |
1988 | .end_request = ide_end_request, |
1989 | .error = __ide_error, | |
7662d046 | 1990 | #ifdef CONFIG_IDE_PROC_FS |
79cb3803 BZ |
1991 | .proc_entries = ide_cd_proc_entries, |
1992 | .proc_devsets = ide_cd_proc_devsets, | |
7662d046 | 1993 | #endif |
1da177e4 LT |
1994 | }; |
1995 | ||
488ca606 | 1996 | static int idecd_open(struct block_device *bdev, fmode_t mode) |
1da177e4 | 1997 | { |
488ca606 | 1998 | struct cdrom_info *info = ide_cd_get(bdev->bd_disk); |
1da177e4 LT |
1999 | int rc = -ENOMEM; |
2000 | ||
9ce70fb2 | 2001 | if (!info) |
1da177e4 LT |
2002 | return -ENXIO; |
2003 | ||
488ca606 | 2004 | rc = cdrom_open(&info->devinfo, bdev, mode); |
1da177e4 LT |
2005 | |
2006 | if (rc < 0) | |
2007 | ide_cd_put(info); | |
2008 | ||
2009 | return rc; | |
2010 | } | |
2011 | ||
488ca606 | 2012 | static int idecd_release(struct gendisk *disk, fmode_t mode) |
1da177e4 | 2013 | { |
5aeddf90 | 2014 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 2015 | |
488ca606 | 2016 | cdrom_release(&info->devinfo, mode); |
1da177e4 LT |
2017 | |
2018 | ide_cd_put(info); | |
2019 | ||
2020 | return 0; | |
2021 | } | |
2022 | ||
6a2900b6 CH |
2023 | static int idecd_set_spindown(struct cdrom_device_info *cdi, unsigned long arg) |
2024 | { | |
2025 | struct packet_command cgc; | |
2026 | char buffer[16]; | |
2027 | int stat; | |
2028 | char spindown; | |
2029 | ||
2030 | if (copy_from_user(&spindown, (void __user *)arg, sizeof(char))) | |
2031 | return -EFAULT; | |
2032 | ||
2033 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
2034 | ||
2035 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
2036 | if (stat) | |
2037 | return stat; | |
2038 | ||
2039 | buffer[11] = (buffer[11] & 0xf0) | (spindown & 0x0f); | |
2040 | return cdrom_mode_select(cdi, &cgc); | |
2041 | } | |
2042 | ||
2043 | static int idecd_get_spindown(struct cdrom_device_info *cdi, unsigned long arg) | |
2044 | { | |
2045 | struct packet_command cgc; | |
2046 | char buffer[16]; | |
2047 | int stat; | |
9ce70fb2 | 2048 | char spindown; |
6a2900b6 CH |
2049 | |
2050 | init_cdrom_command(&cgc, buffer, sizeof(buffer), CGC_DATA_UNKNOWN); | |
2051 | ||
2052 | stat = cdrom_mode_sense(cdi, &cgc, GPMODE_CDROM_PAGE, 0); | |
2053 | if (stat) | |
2054 | return stat; | |
2055 | ||
2056 | spindown = buffer[11] & 0x0f; | |
9ce70fb2 | 2057 | if (copy_to_user((void __user *)arg, &spindown, sizeof(char))) |
6a2900b6 CH |
2058 | return -EFAULT; |
2059 | return 0; | |
2060 | } | |
2061 | ||
488ca606 | 2062 | static int idecd_ioctl(struct block_device *bdev, fmode_t mode, |
1da177e4 LT |
2063 | unsigned int cmd, unsigned long arg) |
2064 | { | |
5aeddf90 | 2065 | struct cdrom_info *info = ide_drv_g(bdev->bd_disk, cdrom_info); |
1da177e4 LT |
2066 | int err; |
2067 | ||
6a2900b6 | 2068 | switch (cmd) { |
9ce70fb2 | 2069 | case CDROMSETSPINDOWN: |
6a2900b6 | 2070 | return idecd_set_spindown(&info->devinfo, arg); |
9ce70fb2 | 2071 | case CDROMGETSPINDOWN: |
6a2900b6 CH |
2072 | return idecd_get_spindown(&info->devinfo, arg); |
2073 | default: | |
2074 | break; | |
9ce70fb2 | 2075 | } |
6a2900b6 | 2076 | |
1bddd9e6 | 2077 | err = generic_ide_ioctl(info->drive, bdev, cmd, arg); |
1da177e4 | 2078 | if (err == -EINVAL) |
488ca606 | 2079 | err = cdrom_ioctl(&info->devinfo, bdev, mode, cmd, arg); |
1da177e4 LT |
2080 | |
2081 | return err; | |
2082 | } | |
2083 | ||
2084 | static int idecd_media_changed(struct gendisk *disk) | |
2085 | { | |
5aeddf90 | 2086 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 LT |
2087 | return cdrom_media_changed(&info->devinfo); |
2088 | } | |
2089 | ||
2090 | static int idecd_revalidate_disk(struct gendisk *disk) | |
2091 | { | |
5aeddf90 | 2092 | struct cdrom_info *info = ide_drv_g(disk, cdrom_info); |
1da177e4 | 2093 | struct request_sense sense; |
139c829d BZ |
2094 | |
2095 | ide_cd_read_toc(info->drive, &sense); | |
2096 | ||
1da177e4 LT |
2097 | return 0; |
2098 | } | |
2099 | ||
2100 | static struct block_device_operations idecd_ops = { | |
9ce70fb2 | 2101 | .owner = THIS_MODULE, |
488ca606 AV |
2102 | .open = idecd_open, |
2103 | .release = idecd_release, | |
2104 | .locked_ioctl = idecd_ioctl, | |
9ce70fb2 PC |
2105 | .media_changed = idecd_media_changed, |
2106 | .revalidate_disk = idecd_revalidate_disk | |
1da177e4 LT |
2107 | }; |
2108 | ||
5a3ea3b4 | 2109 | /* module options */ |
9ce70fb2 | 2110 | static char *ignore; |
1da177e4 | 2111 | module_param(ignore, charp, 0400); |
35d9b17f BP |
2112 | |
2113 | static unsigned long debug_mask; | |
2114 | module_param(debug_mask, ulong, 0644); | |
2115 | ||
1da177e4 LT |
2116 | MODULE_DESCRIPTION("ATAPI CD-ROM Driver"); |
2117 | ||
4031bbe4 | 2118 | static int ide_cd_probe(ide_drive_t *drive) |
1da177e4 LT |
2119 | { |
2120 | struct cdrom_info *info; | |
2121 | struct gendisk *g; | |
2122 | struct request_sense sense; | |
2123 | ||
fc8323f7 BP |
2124 | ide_debug_log(IDE_DBG_PROBE, "Call %s, drive->driver_req: %s, " |
2125 | "drive->media: 0x%x\n", __func__, drive->driver_req, | |
2126 | drive->media); | |
2127 | ||
1da177e4 LT |
2128 | if (!strstr("ide-cdrom", drive->driver_req)) |
2129 | goto failed; | |
2a924662 | 2130 | |
1da177e4 LT |
2131 | if (drive->media != ide_cdrom && drive->media != ide_optical) |
2132 | goto failed; | |
2a924662 | 2133 | |
1da177e4 LT |
2134 | /* skip drives that we were told to ignore */ |
2135 | if (ignore != NULL) { | |
2136 | if (strstr(ignore, drive->name)) { | |
fc8323f7 | 2137 | printk(KERN_INFO PFX "ignoring drive %s\n", |
83c8565d | 2138 | drive->name); |
1da177e4 LT |
2139 | goto failed; |
2140 | } | |
2141 | } | |
35d9b17f BP |
2142 | |
2143 | drive->debug_mask = debug_mask; | |
2144 | ||
f5e3c2fa | 2145 | info = kzalloc(sizeof(struct cdrom_info), GFP_KERNEL); |
1da177e4 | 2146 | if (info == NULL) { |
fc8323f7 | 2147 | printk(KERN_ERR PFX "%s: Can't allocate a cdrom structure\n", |
83c8565d | 2148 | drive->name); |
1da177e4 LT |
2149 | goto failed; |
2150 | } | |
2151 | ||
2152 | g = alloc_disk(1 << PARTN_BITS); | |
2153 | if (!g) | |
2154 | goto out_free_cd; | |
2155 | ||
2156 | ide_init_disk(g, drive); | |
2157 | ||
1da177e4 LT |
2158 | kref_init(&info->kref); |
2159 | ||
2160 | info->drive = drive; | |
2161 | info->driver = &ide_cdrom_driver; | |
2162 | info->disk = g; | |
2163 | ||
2164 | g->private_data = &info->driver; | |
2165 | ||
2166 | drive->driver_data = info; | |
2167 | ||
1da177e4 | 2168 | g->minors = 1; |
1da177e4 LT |
2169 | g->driverfs_dev = &drive->gendev; |
2170 | g->flags = GENHD_FL_CD | GENHD_FL_REMOVABLE; | |
2171 | if (ide_cdrom_setup(drive)) { | |
05017db3 | 2172 | ide_cd_release(&info->kref); |
1da177e4 LT |
2173 | goto failed; |
2174 | } | |
1da177e4 | 2175 | |
139c829d | 2176 | ide_cd_read_toc(drive, &sense); |
1da177e4 LT |
2177 | g->fops = &idecd_ops; |
2178 | g->flags |= GENHD_FL_REMOVABLE; | |
2179 | add_disk(g); | |
2180 | return 0; | |
2181 | ||
1da177e4 LT |
2182 | out_free_cd: |
2183 | kfree(info); | |
2184 | failed: | |
8604affd | 2185 | return -ENODEV; |
1da177e4 LT |
2186 | } |
2187 | ||
2188 | static void __exit ide_cdrom_exit(void) | |
2189 | { | |
8604affd | 2190 | driver_unregister(&ide_cdrom_driver.gen_driver); |
1da177e4 | 2191 | } |
17514e8a BZ |
2192 | |
2193 | static int __init ide_cdrom_init(void) | |
1da177e4 | 2194 | { |
fc8323f7 | 2195 | printk(KERN_INFO DRV_NAME " driver " IDECD_VERSION "\n"); |
8604affd | 2196 | return driver_register(&ide_cdrom_driver.gen_driver); |
1da177e4 LT |
2197 | } |
2198 | ||
263756ec | 2199 | MODULE_ALIAS("ide:*m-cdrom*"); |
972560fb | 2200 | MODULE_ALIAS("ide-cd"); |
1da177e4 LT |
2201 | module_init(ide_cdrom_init); |
2202 | module_exit(ide_cdrom_exit); | |
2203 | MODULE_LICENSE("GPL"); |