Commit | Line | Data |
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17802998 BZ |
1 | /* |
2 | * cdrom.c IOCTLs handling for ide-cd driver. | |
3 | * | |
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 | */ | |
8 | ||
9 | #include <linux/kernel.h> | |
10 | #include <linux/cdrom.h> | |
11 | #include <linux/ide.h> | |
f9afd18b | 12 | #include <scsi/scsi.h> |
17802998 BZ |
13 | |
14 | #include "ide-cd.h" | |
15 | ||
f9afd18b BP |
16 | /**************************************************************************** |
17 | * Other driver requests (open, close, check media change). | |
18 | */ | |
19 | int ide_cdrom_open_real(struct cdrom_device_info *cdi, int purpose) | |
20 | { | |
21 | return 0; | |
22 | } | |
23 | ||
24 | /* | |
25 | * Close down the device. Invalidate all cached blocks. | |
26 | */ | |
27 | void ide_cdrom_release_real(struct cdrom_device_info *cdi) | |
28 | { | |
29 | ide_drive_t *drive = cdi->handle; | |
30 | struct cdrom_info *cd = drive->driver_data; | |
31 | ||
32 | if (!cdi->use_count) | |
33 | cd->cd_flags &= ~IDE_CD_FLAG_TOC_VALID; | |
34 | } | |
35 | ||
36 | /* | |
37 | * add logic to try GET_EVENT command first to check for media and tray | |
38 | * status. this should be supported by newer cd-r/w and all DVD etc | |
39 | * drives | |
40 | */ | |
41 | int ide_cdrom_drive_status(struct cdrom_device_info *cdi, int slot_nr) | |
42 | { | |
43 | ide_drive_t *drive = cdi->handle; | |
44 | struct media_event_desc med; | |
45 | struct request_sense sense; | |
46 | int stat; | |
47 | ||
48 | if (slot_nr != CDSL_CURRENT) | |
49 | return -EINVAL; | |
50 | ||
51 | stat = cdrom_check_status(drive, &sense); | |
52 | if (!stat || sense.sense_key == UNIT_ATTENTION) | |
53 | return CDS_DISC_OK; | |
54 | ||
55 | if (!cdrom_get_media_event(cdi, &med)) { | |
56 | if (med.media_present) | |
57 | return CDS_DISC_OK; | |
58 | else if (med.door_open) | |
59 | return CDS_TRAY_OPEN; | |
60 | else | |
61 | return CDS_NO_DISC; | |
62 | } | |
63 | ||
64 | if (sense.sense_key == NOT_READY && sense.asc == 0x04 | |
65 | && sense.ascq == 0x04) | |
66 | return CDS_DISC_OK; | |
67 | ||
68 | /* | |
69 | * If not using Mt Fuji extended media tray reports, | |
70 | * just return TRAY_OPEN since ATAPI doesn't provide | |
71 | * any other way to detect this... | |
72 | */ | |
73 | if (sense.sense_key == NOT_READY) { | |
74 | if (sense.asc == 0x3a && sense.ascq == 1) | |
75 | return CDS_NO_DISC; | |
76 | else | |
77 | return CDS_TRAY_OPEN; | |
78 | } | |
79 | return CDS_DRIVE_NOT_READY; | |
80 | } | |
81 | ||
82 | int ide_cdrom_check_media_change_real(struct cdrom_device_info *cdi, | |
83 | int slot_nr) | |
84 | { | |
85 | ide_drive_t *drive = cdi->handle; | |
86 | struct cdrom_info *cd = drive->driver_data; | |
87 | int retval; | |
88 | ||
89 | if (slot_nr == CDSL_CURRENT) { | |
90 | (void) cdrom_check_status(drive, NULL); | |
91 | retval = (cd->cd_flags & IDE_CD_FLAG_MEDIA_CHANGED) ? 1 : 0; | |
92 | cd->cd_flags &= ~IDE_CD_FLAG_MEDIA_CHANGED; | |
93 | return retval; | |
94 | } else { | |
95 | return -EINVAL; | |
96 | } | |
97 | } | |
98 | ||
99 | /* Eject the disk if EJECTFLAG is 0. | |
100 | If EJECTFLAG is 1, try to reload the disk. */ | |
101 | static | |
102 | int cdrom_eject(ide_drive_t *drive, int ejectflag, | |
103 | struct request_sense *sense) | |
104 | { | |
105 | struct cdrom_info *cd = drive->driver_data; | |
106 | struct cdrom_device_info *cdi = &cd->devinfo; | |
f9afd18b | 107 | char loej = 0x02; |
5f828546 | 108 | unsigned char cmd[BLK_MAX_CDB]; |
f9afd18b BP |
109 | |
110 | if ((cd->cd_flags & IDE_CD_FLAG_NO_EJECT) && !ejectflag) | |
111 | return -EDRIVE_CANT_DO_THIS; | |
112 | ||
113 | /* reload fails on some drives, if the tray is locked */ | |
114 | if ((cd->cd_flags & IDE_CD_FLAG_DOOR_LOCKED) && ejectflag) | |
115 | return 0; | |
116 | ||
f9afd18b BP |
117 | /* only tell drive to close tray if open, if it can do that */ |
118 | if (ejectflag && (cdi->mask & CDC_CLOSE_TRAY)) | |
119 | loej = 0; | |
120 | ||
5f828546 FT |
121 | memset(cmd, 0, BLK_MAX_CDB); |
122 | ||
123 | cmd[0] = GPCMD_START_STOP_UNIT; | |
124 | cmd[4] = loej | (ejectflag != 0); | |
f9afd18b | 125 | |
5f828546 | 126 | return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, sense, 0, 0); |
f9afd18b BP |
127 | } |
128 | ||
129 | /* Lock the door if LOCKFLAG is nonzero; unlock it otherwise. */ | |
130 | static | |
131 | int ide_cd_lockdoor(ide_drive_t *drive, int lockflag, | |
132 | struct request_sense *sense) | |
133 | { | |
134 | struct cdrom_info *cd = drive->driver_data; | |
135 | struct request_sense my_sense; | |
f9afd18b BP |
136 | int stat; |
137 | ||
138 | if (sense == NULL) | |
139 | sense = &my_sense; | |
140 | ||
141 | /* If the drive cannot lock the door, just pretend. */ | |
142 | if (cd->cd_flags & IDE_CD_FLAG_NO_DOORLOCK) { | |
143 | stat = 0; | |
144 | } else { | |
5f828546 FT |
145 | unsigned char cmd[BLK_MAX_CDB]; |
146 | ||
147 | memset(cmd, 0, BLK_MAX_CDB); | |
148 | ||
149 | cmd[0] = GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL; | |
150 | cmd[4] = lockflag ? 1 : 0; | |
151 | ||
152 | stat = ide_cd_queue_pc(drive, cmd, 0, NULL, 0, | |
153 | sense, 0, 0); | |
f9afd18b BP |
154 | } |
155 | ||
156 | /* If we got an illegal field error, the drive | |
157 | probably cannot lock the door. */ | |
158 | if (stat != 0 && | |
159 | sense->sense_key == ILLEGAL_REQUEST && | |
160 | (sense->asc == 0x24 || sense->asc == 0x20)) { | |
161 | printk(KERN_ERR "%s: door locking not supported\n", | |
162 | drive->name); | |
163 | cd->cd_flags |= IDE_CD_FLAG_NO_DOORLOCK; | |
164 | stat = 0; | |
165 | } | |
166 | ||
167 | /* no medium, that's alright. */ | |
168 | if (stat != 0 && sense->sense_key == NOT_READY && sense->asc == 0x3a) | |
169 | stat = 0; | |
170 | ||
171 | if (stat == 0) { | |
172 | if (lockflag) | |
173 | cd->cd_flags |= IDE_CD_FLAG_DOOR_LOCKED; | |
174 | else | |
175 | cd->cd_flags &= ~IDE_CD_FLAG_DOOR_LOCKED; | |
176 | } | |
177 | ||
178 | return stat; | |
179 | } | |
180 | ||
181 | int ide_cdrom_tray_move(struct cdrom_device_info *cdi, int position) | |
182 | { | |
183 | ide_drive_t *drive = cdi->handle; | |
184 | struct request_sense sense; | |
185 | ||
186 | if (position) { | |
187 | int stat = ide_cd_lockdoor(drive, 0, &sense); | |
188 | ||
189 | if (stat) | |
190 | return stat; | |
191 | } | |
192 | ||
193 | return cdrom_eject(drive, !position, &sense); | |
194 | } | |
195 | ||
17802998 BZ |
196 | int ide_cdrom_lock_door(struct cdrom_device_info *cdi, int lock) |
197 | { | |
198 | ide_drive_t *drive = cdi->handle; | |
199 | ||
200 | return ide_cd_lockdoor(drive, lock, NULL); | |
201 | } | |
202 | ||
203 | /* | |
204 | * ATAPI devices are free to select the speed you request or any slower | |
205 | * rate. :-( Requesting too fast a speed will _not_ produce an error. | |
206 | */ | |
207 | int ide_cdrom_select_speed(struct cdrom_device_info *cdi, int speed) | |
208 | { | |
209 | ide_drive_t *drive = cdi->handle; | |
210 | struct cdrom_info *cd = drive->driver_data; | |
17802998 BZ |
211 | struct request_sense sense; |
212 | u8 buf[ATAPI_CAPABILITIES_PAGE_SIZE]; | |
213 | int stat; | |
5f828546 | 214 | unsigned char cmd[BLK_MAX_CDB]; |
17802998 BZ |
215 | |
216 | if (speed == 0) | |
217 | speed = 0xffff; /* set to max */ | |
218 | else | |
219 | speed *= 177; /* Nx to kbytes/s */ | |
220 | ||
5f828546 FT |
221 | memset(cmd, 0, BLK_MAX_CDB); |
222 | ||
223 | cmd[0] = GPCMD_SET_SPEED; | |
17802998 | 224 | /* Read Drive speed in kbytes/second MSB/LSB */ |
5f828546 FT |
225 | cmd[2] = (speed >> 8) & 0xff; |
226 | cmd[3] = speed & 0xff; | |
17802998 BZ |
227 | if ((cdi->mask & (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) != |
228 | (CDC_CD_R | CDC_CD_RW | CDC_DVD_R)) { | |
229 | /* Write Drive speed in kbytes/second MSB/LSB */ | |
5f828546 FT |
230 | cmd[4] = (speed >> 8) & 0xff; |
231 | cmd[5] = speed & 0xff; | |
17802998 BZ |
232 | } |
233 | ||
5f828546 | 234 | stat = ide_cd_queue_pc(drive, cmd, 0, NULL, 0, &sense, 0, 0); |
17802998 BZ |
235 | |
236 | if (!ide_cdrom_get_capabilities(drive, buf)) { | |
237 | ide_cdrom_update_speed(drive, buf); | |
238 | cdi->speed = cd->current_speed; | |
239 | } | |
240 | ||
241 | return 0; | |
242 | } | |
243 | ||
244 | int ide_cdrom_get_last_session(struct cdrom_device_info *cdi, | |
245 | struct cdrom_multisession *ms_info) | |
246 | { | |
247 | struct atapi_toc *toc; | |
248 | ide_drive_t *drive = cdi->handle; | |
249 | struct cdrom_info *info = drive->driver_data; | |
250 | struct request_sense sense; | |
251 | int ret; | |
252 | ||
253 | if ((info->cd_flags & IDE_CD_FLAG_TOC_VALID) == 0 || !info->toc) { | |
254 | ret = ide_cd_read_toc(drive, &sense); | |
255 | if (ret) | |
256 | return ret; | |
257 | } | |
258 | ||
259 | toc = info->toc; | |
260 | ms_info->addr.lba = toc->last_session_lba; | |
261 | ms_info->xa_flag = toc->xa_flag; | |
262 | ||
263 | return 0; | |
264 | } | |
265 | ||
266 | int ide_cdrom_get_mcn(struct cdrom_device_info *cdi, | |
267 | struct cdrom_mcn *mcn_info) | |
268 | { | |
269 | ide_drive_t *drive = cdi->handle; | |
270 | int stat, mcnlen; | |
17802998 | 271 | char buf[24]; |
5f828546 FT |
272 | unsigned char cmd[BLK_MAX_CDB]; |
273 | unsigned len = sizeof(buf); | |
17802998 | 274 | |
5f828546 | 275 | memset(cmd, 0, BLK_MAX_CDB); |
17802998 | 276 | |
5f828546 FT |
277 | cmd[0] = GPCMD_READ_SUBCHANNEL; |
278 | cmd[1] = 2; /* MSF addressing */ | |
279 | cmd[2] = 0x40; /* request subQ data */ | |
280 | cmd[3] = 2; /* format */ | |
281 | cmd[8] = len; | |
17802998 | 282 | |
5f828546 | 283 | stat = ide_cd_queue_pc(drive, cmd, 0, buf, &len, NULL, 0, 0); |
17802998 BZ |
284 | if (stat) |
285 | return stat; | |
286 | ||
287 | mcnlen = sizeof(mcn_info->medium_catalog_number) - 1; | |
288 | memcpy(mcn_info->medium_catalog_number, buf + 9, mcnlen); | |
289 | mcn_info->medium_catalog_number[mcnlen] = '\0'; | |
290 | ||
291 | return 0; | |
292 | } | |
293 | ||
294 | int ide_cdrom_reset(struct cdrom_device_info *cdi) | |
295 | { | |
296 | ide_drive_t *drive = cdi->handle; | |
297 | struct cdrom_info *cd = drive->driver_data; | |
298 | struct request_sense sense; | |
0ef4c4db | 299 | struct request *rq; |
17802998 BZ |
300 | int ret; |
301 | ||
0ef4c4db FT |
302 | rq = blk_get_request(drive->queue, READ, __GFP_WAIT); |
303 | rq->cmd_type = REQ_TYPE_SPECIAL; | |
304 | rq->cmd_flags = REQ_QUIET; | |
305 | ret = blk_execute_rq(drive->queue, cd->disk, rq, 0); | |
306 | blk_put_request(rq); | |
17802998 BZ |
307 | /* |
308 | * A reset will unlock the door. If it was previously locked, | |
309 | * lock it again. | |
310 | */ | |
311 | if (cd->cd_flags & IDE_CD_FLAG_DOOR_LOCKED) | |
312 | (void)ide_cd_lockdoor(drive, 1, &sense); | |
313 | ||
314 | return ret; | |
315 | } | |
316 | ||
317 | static int ide_cd_get_toc_entry(ide_drive_t *drive, int track, | |
318 | struct atapi_toc_entry **ent) | |
319 | { | |
320 | struct cdrom_info *info = drive->driver_data; | |
321 | struct atapi_toc *toc = info->toc; | |
322 | int ntracks; | |
323 | ||
324 | /* | |
325 | * don't serve cached data, if the toc isn't valid | |
326 | */ | |
327 | if ((info->cd_flags & IDE_CD_FLAG_TOC_VALID) == 0) | |
328 | return -EINVAL; | |
329 | ||
330 | /* Check validity of requested track number. */ | |
331 | ntracks = toc->hdr.last_track - toc->hdr.first_track + 1; | |
332 | ||
333 | if (toc->hdr.first_track == CDROM_LEADOUT) | |
334 | ntracks = 0; | |
335 | ||
336 | if (track == CDROM_LEADOUT) | |
337 | *ent = &toc->ent[ntracks]; | |
338 | else if (track < toc->hdr.first_track || track > toc->hdr.last_track) | |
339 | return -EINVAL; | |
340 | else | |
341 | *ent = &toc->ent[track - toc->hdr.first_track]; | |
342 | ||
343 | return 0; | |
344 | } | |
345 | ||
346 | static int ide_cd_fake_play_trkind(ide_drive_t *drive, void *arg) | |
347 | { | |
348 | struct cdrom_ti *ti = arg; | |
349 | struct atapi_toc_entry *first_toc, *last_toc; | |
350 | unsigned long lba_start, lba_end; | |
351 | int stat; | |
17802998 | 352 | struct request_sense sense; |
5f828546 | 353 | unsigned char cmd[BLK_MAX_CDB]; |
17802998 BZ |
354 | |
355 | stat = ide_cd_get_toc_entry(drive, ti->cdti_trk0, &first_toc); | |
356 | if (stat) | |
357 | return stat; | |
358 | ||
359 | stat = ide_cd_get_toc_entry(drive, ti->cdti_trk1, &last_toc); | |
360 | if (stat) | |
361 | return stat; | |
362 | ||
363 | if (ti->cdti_trk1 != CDROM_LEADOUT) | |
364 | ++last_toc; | |
365 | lba_start = first_toc->addr.lba; | |
366 | lba_end = last_toc->addr.lba; | |
367 | ||
368 | if (lba_end <= lba_start) | |
369 | return -EINVAL; | |
370 | ||
5f828546 | 371 | memset(cmd, 0, BLK_MAX_CDB); |
17802998 | 372 | |
5f828546 FT |
373 | cmd[0] = GPCMD_PLAY_AUDIO_MSF; |
374 | lba_to_msf(lba_start, &cmd[3], &cmd[4], &cmd[5]); | |
375 | lba_to_msf(lba_end - 1, &cmd[6], &cmd[7], &cmd[8]); | |
17802998 | 376 | |
5f828546 | 377 | return ide_cd_queue_pc(drive, cmd, 0, NULL, 0, &sense, 0, 0); |
17802998 BZ |
378 | } |
379 | ||
380 | static int ide_cd_read_tochdr(ide_drive_t *drive, void *arg) | |
381 | { | |
382 | struct cdrom_info *cd = drive->driver_data; | |
383 | struct cdrom_tochdr *tochdr = arg; | |
384 | struct atapi_toc *toc; | |
385 | int stat; | |
386 | ||
387 | /* Make sure our saved TOC is valid. */ | |
388 | stat = ide_cd_read_toc(drive, NULL); | |
389 | if (stat) | |
390 | return stat; | |
391 | ||
392 | toc = cd->toc; | |
393 | tochdr->cdth_trk0 = toc->hdr.first_track; | |
394 | tochdr->cdth_trk1 = toc->hdr.last_track; | |
395 | ||
396 | return 0; | |
397 | } | |
398 | ||
399 | static int ide_cd_read_tocentry(ide_drive_t *drive, void *arg) | |
400 | { | |
401 | struct cdrom_tocentry *tocentry = arg; | |
402 | struct atapi_toc_entry *toce; | |
403 | int stat; | |
404 | ||
405 | stat = ide_cd_get_toc_entry(drive, tocentry->cdte_track, &toce); | |
406 | if (stat) | |
407 | return stat; | |
408 | ||
409 | tocentry->cdte_ctrl = toce->control; | |
410 | tocentry->cdte_adr = toce->adr; | |
411 | if (tocentry->cdte_format == CDROM_MSF) { | |
412 | lba_to_msf(toce->addr.lba, | |
413 | &tocentry->cdte_addr.msf.minute, | |
414 | &tocentry->cdte_addr.msf.second, | |
415 | &tocentry->cdte_addr.msf.frame); | |
416 | } else | |
417 | tocentry->cdte_addr.lba = toce->addr.lba; | |
418 | ||
419 | return 0; | |
420 | } | |
421 | ||
422 | int ide_cdrom_audio_ioctl(struct cdrom_device_info *cdi, | |
423 | unsigned int cmd, void *arg) | |
424 | { | |
425 | ide_drive_t *drive = cdi->handle; | |
426 | ||
427 | switch (cmd) { | |
428 | /* | |
429 | * emulate PLAY_AUDIO_TI command with PLAY_AUDIO_10, since | |
430 | * atapi doesn't support it | |
431 | */ | |
432 | case CDROMPLAYTRKIND: | |
433 | return ide_cd_fake_play_trkind(drive, arg); | |
434 | case CDROMREADTOCHDR: | |
435 | return ide_cd_read_tochdr(drive, arg); | |
436 | case CDROMREADTOCENTRY: | |
437 | return ide_cd_read_tocentry(drive, arg); | |
438 | default: | |
439 | return -EINVAL; | |
440 | } | |
441 | } | |
f9afd18b BP |
442 | |
443 | /* the generic packet interface to cdrom.c */ | |
444 | int ide_cdrom_packet(struct cdrom_device_info *cdi, | |
445 | struct packet_command *cgc) | |
446 | { | |
f9afd18b | 447 | ide_drive_t *drive = cdi->handle; |
5f828546 FT |
448 | unsigned int flags = 0; |
449 | unsigned len = cgc->buflen; | |
f9afd18b BP |
450 | |
451 | if (cgc->timeout <= 0) | |
452 | cgc->timeout = ATAPI_WAIT_PC; | |
453 | ||
454 | /* here we queue the commands from the uniform CD-ROM | |
455 | layer. the packet must be complete, as we do not | |
456 | touch it at all. */ | |
b348487f BZ |
457 | |
458 | if (cgc->data_direction == CGC_DATA_WRITE) | |
5f828546 | 459 | flags |= REQ_RW; |
b348487f | 460 | |
f9afd18b BP |
461 | if (cgc->sense) |
462 | memset(cgc->sense, 0, sizeof(struct request_sense)); | |
f9afd18b BP |
463 | |
464 | if (cgc->quiet) | |
5f828546 | 465 | flags |= REQ_QUIET; |
f9afd18b | 466 | |
5f828546 FT |
467 | cgc->stat = ide_cd_queue_pc(drive, cgc->cmd, |
468 | cgc->data_direction == CGC_DATA_WRITE, | |
469 | cgc->buffer, &len, | |
470 | cgc->sense, cgc->timeout, flags); | |
f9afd18b | 471 | if (!cgc->stat) |
5f828546 | 472 | cgc->buflen -= len; |
f9afd18b BP |
473 | return cgc->stat; |
474 | } |