1 /*
2 * -- <linux/cdrom.h>
3 * General header file for linux CD-ROM drivers
4 * Copyright (C) 1992 David Giller, rafetmad@oxy.edu
5 * 1994, 1995 Eberhard Moenkeberg, emoenke@gwdg.de
6 * 1996 David van Leeuwen, david@tm.tno.nl
7 * 1997, 1998 Erik Andersen, andersee@debian.org
8 * 1998-2000 Jens Axboe, axboe@suse.de
9 */
10
11 #ifndef _LINUX_CDROM_H
12 #define _LINUX_CDROM_H
13
14 #include <asm/byteorder.h>
15
16 /*******************************************************
17 * As of Linux 2.1.x, all Linux CD-ROM application programs will use this
18 * (and only this) include file. It is my hope to provide Linux with
19 * a uniform interface between software accessing CD-ROMs and the various
20 * device drivers that actually talk to the drives. There may still be
21 * 23 different kinds of strange CD-ROM drives, but at least there will
22 * now be one, and only one, Linux CD-ROM interface.
23 *
24 * Additionally, as of Linux 2.1.x, all Linux application programs
25 * should use the O_NONBLOCK option when opening a CD-ROM device
26 * for subsequent ioctl commands. This allows for neat system errors
27 * like "No medium found" or "Wrong medium type" upon attempting to
28 * mount or play an empty slot, mount an audio disc, or play a data disc.
29 * Generally, changing an application program to support O_NONBLOCK
30 * is as easy as the following:
31 * - drive = open("/dev/cdrom", O_RDONLY);
32 * + drive = open("/dev/cdrom", O_RDONLY | O_NONBLOCK);
33 * It is worth the small change.
34 *
35 * Patches for many common CD programs (provided by David A. van Leeuwen)
36 * can be found at: ftp://ftp.gwdg.de/pub/linux/cdrom/drivers/cm206/
37 *
38 *******************************************************/
39
40 /* When a driver supports a certain function, but the cdrom drive we are
41 * using doesn't, we will return the error EDRIVE_CANT_DO_THIS. We will
42 * borrow the "Operation not supported" error from the network folks to
43 * accomplish this. Maybe someday we will get a more targeted error code,
44 * but this will do for now... */
45 #define EDRIVE_CANT_DO_THIS EOPNOTSUPP
46
47 /*******************************************************
48 * The CD-ROM IOCTL commands -- these should be supported by
49 * all the various cdrom drivers. For the CD-ROM ioctls, we
50 * will commandeer byte 0x53, or 'S'.
51 *******************************************************/
52 #define CDROMPAUSE 0x5301 /* Pause Audio Operation */
53 #define CDROMRESUME 0x5302 /* Resume paused Audio Operation */
54 #define CDROMPLAYMSF 0x5303 /* Play Audio MSF (struct cdrom_msf) */
55 #define CDROMPLAYTRKIND 0x5304 /* Play Audio Track/index
56 (struct cdrom_ti) */
57 #define CDROMREADTOCHDR 0x5305 /* Read TOC header
58 (struct cdrom_tochdr) */
59 #define CDROMREADTOCENTRY 0x5306 /* Read TOC entry
60 (struct cdrom_tocentry) */
61 #define CDROMSTOP 0x5307 /* Stop the cdrom drive */
62 #define CDROMSTART 0x5308 /* Start the cdrom drive */
63 #define CDROMEJECT 0x5309 /* Ejects the cdrom media */
64 #define CDROMVOLCTRL 0x530a /* Control output volume
65 (struct cdrom_volctrl) */
66 #define CDROMSUBCHNL 0x530b /* Read subchannel data
67 (struct cdrom_subchnl) */
68 #define CDROMREADMODE2 0x530c /* Read CDROM mode 2 data (2336 Bytes)
69 (struct cdrom_read) */
70 #define CDROMREADMODE1 0x530d /* Read CDROM mode 1 data (2048 Bytes)
71 (struct cdrom_read) */
72 #define CDROMREADAUDIO 0x530e /* (struct cdrom_read_audio) */
73 #define CDROMEJECT_SW 0x530f /* enable(1)/disable(0) auto-ejecting */
74 #define CDROMMULTISESSION 0x5310 /* Obtain the start-of-last-session
75 address of multi session disks
76 (struct cdrom_multisession) */
77 #define CDROM_GET_MCN 0x5311 /* Obtain the "Universal Product Code"
78 if available (struct cdrom_mcn) */
79 #define CDROM_GET_UPC CDROM_GET_MCN /* This one is depricated,
80 but here anyway for compatability */
81 #define CDROMRESET 0x5312 /* hard-reset the drive */
82 #define CDROMVOLREAD 0x5313 /* Get the drive's volume setting
83 (struct cdrom_volctrl) */
84 #define CDROMREADRAW 0x5314 /* read data in raw mode (2352 Bytes)
85 (struct cdrom_read) */
86 /*
87 * These ioctls are used only used in aztcd.c and optcd.c
88 */
89 #define CDROMREADCOOKED 0x5315 /* read data in cooked mode */
90 #define CDROMSEEK 0x5316 /* seek msf address */
91
92 /*
93 * This ioctl is only used by the scsi-cd driver.
94 It is for playing audio in logical block addressing mode.
95 */
96 #define CDROMPLAYBLK 0x5317 /* (struct cdrom_blk) */
97
98 /*
99 * These ioctls are only used in optcd.c
100 */
101 #define CDROMREADALL 0x5318 /* read all 2646 bytes */
102
103 /*
104 * These ioctls are (now) only in ide-cd.c for controlling
105 * drive spindown time. They should be implemented in the
106 * Uniform driver, via generic packet commands, GPCMD_MODE_SELECT_10,
107 * GPCMD_MODE_SENSE_10 and the GPMODE_POWER_PAGE...
108 * -Erik
109 */
110 #define CDROMGETSPINDOWN 0x531d
111 #define CDROMSETSPINDOWN 0x531e
112
113 /*
114 * These ioctls are implemented through the uniform CD-ROM driver
115 * They _will_ be adopted by all CD-ROM drivers, when all the CD-ROM
116 * drivers are eventually ported to the uniform CD-ROM driver interface.
117 */
118 #define CDROMCLOSETRAY 0x5319 /* pendant of CDROMEJECT */
119 #define CDROM_SET_OPTIONS 0x5320 /* Set behavior options */
120 #define CDROM_CLEAR_OPTIONS 0x5321 /* Clear behavior options */
121 #define CDROM_SELECT_SPEED 0x5322 /* Set the CD-ROM speed */
122 #define CDROM_SELECT_DISC 0x5323 /* Select disc (for juke-boxes) */
123 #define CDROM_MEDIA_CHANGED 0x5325 /* Check is media changed */
124 #define CDROM_DRIVE_STATUS 0x5326 /* Get tray position, etc. */
125 #define CDROM_DISC_STATUS 0x5327 /* Get disc type, etc. */
126 #define CDROM_CHANGER_NSLOTS 0x5328 /* Get number of slots */
127 #define CDROM_LOCKDOOR 0x5329 /* lock or unlock door */
128 #define CDROM_DEBUG 0x5330 /* Turn debug messages on/off */
129 #define CDROM_GET_CAPABILITY 0x5331 /* get capabilities */
130
131 /* Note that scsi/scsi_ioctl.h also uses 0x5382 - 0x5386.
132 * Future CDROM ioctls should be kept below 0x537F
133 */
134
135 /* This ioctl is only used by sbpcd at the moment */
136 #define CDROMAUDIOBUFSIZ 0x5382 /* set the audio buffer size */
137 /* conflict with SCSI_IOCTL_GET_IDLUN */
138
139 /* DVD-ROM Specific ioctls */
140 #define DVD_READ_STRUCT 0x5390 /* Read structure */
141 #define DVD_WRITE_STRUCT 0x5391 /* Write structure */
142 #define DVD_AUTH 0x5392 /* Authentication */
143
144 #define CDROM_SEND_PACKET 0x5393 /* send a packet to the drive */
145 #define CDROM_NEXT_WRITABLE 0x5394 /* get next writable block */
146 #define CDROM_LAST_WRITTEN 0x5395 /* get last block written on disc */
147
148 /*******************************************************
149 * CDROM IOCTL structures
150 *******************************************************/
151
152 /* Address in MSF format */
153 struct cdrom_msf0
154 {
155 __u8 minute;
156 __u8 second;
157 __u8 frame;
158 };
159
160 /* Address in either MSF or logical format */
161 union cdrom_addr
162 {
163 struct cdrom_msf0 msf;
164 int lba;
165 };
166
167 /* This struct is used by the CDROMPLAYMSF ioctl */
168 struct cdrom_msf
169 {
170 __u8 cdmsf_min0; /* start minute */
171 __u8 cdmsf_sec0; /* start second */
172 __u8 cdmsf_frame0; /* start frame */
173 __u8 cdmsf_min1; /* end minute */
174 __u8 cdmsf_sec1; /* end second */
175 __u8 cdmsf_frame1; /* end frame */
176 };
177
178 /* This struct is used by the CDROMPLAYTRKIND ioctl */
179 struct cdrom_ti
180 {
181 __u8 cdti_trk0; /* start track */
182 __u8 cdti_ind0; /* start index */
183 __u8 cdti_trk1; /* end track */
184 __u8 cdti_ind1; /* end index */
185 };
186
187 /* This struct is used by the CDROMREADTOCHDR ioctl */
188 struct cdrom_tochdr
189 {
190 __u8 cdth_trk0; /* start track */
191 __u8 cdth_trk1; /* end track */
192 };
193
194 /* This struct is used by the CDROMVOLCTRL and CDROMVOLREAD ioctls */
195 struct cdrom_volctrl
196 {
197 __u8 channel0;
198 __u8 channel1;
199 __u8 channel2;
200 __u8 channel3;
201 };
202
203 /* This struct is used by the CDROMSUBCHNL ioctl */
204 struct cdrom_subchnl
205 {
206 __u8 cdsc_format;
207 __u8 cdsc_audiostatus;
208 __u8 cdsc_adr: 4;
209 __u8 cdsc_ctrl: 4;
210 __u8 cdsc_trk;
211 __u8 cdsc_ind;
212 union cdrom_addr cdsc_absaddr;
213 union cdrom_addr cdsc_reladdr;
214 };
215
216
217 /* This struct is used by the CDROMREADTOCENTRY ioctl */
218 struct cdrom_tocentry
219 {
220 __u8 cdte_track;
221 __u8 cdte_adr :4;
222 __u8 cdte_ctrl :4;
223 __u8 cdte_format;
224 union cdrom_addr cdte_addr;
225 __u8 cdte_datamode;
226 };
227
228 /* This struct is used by the CDROMREADMODE1, and CDROMREADMODE2 ioctls */
229 struct cdrom_read
230 {
231 int cdread_lba;
232 char *cdread_bufaddr;
233 int cdread_buflen;
234 };
235
236 /* This struct is used by the CDROMREADAUDIO ioctl */
237 struct cdrom_read_audio
238 {
239 union cdrom_addr addr; /* frame address */
240 __u8 addr_format; /* CDROM_LBA or CDROM_MSF */
241 int nframes; /* number of 2352-byte-frames to read at once */
242 __u8 *buf; /* frame buffer (size: nframes*2352 bytes) */
243 };
244
245 /* This struct is used with the CDROMMULTISESSION ioctl */
246 struct cdrom_multisession
247 {
248 union cdrom_addr addr; /* frame address: start-of-last-session
249 (not the new "frame 16"!). Only valid
250 if the "xa_flag" is true. */
251 __u8 xa_flag; /* 1: "is XA disk" */
252 __u8 addr_format; /* CDROM_LBA or CDROM_MSF */
253 };
254
255 /* This struct is used with the CDROM_GET_MCN ioctl.
256 * Very few audio discs actually have Universal Product Code information,
257 * which should just be the Medium Catalog Number on the box. Also note
258 * that the way the codeis written on CD is _not_ uniform across all discs!
259 */
260 struct cdrom_mcn
261 {
262 __u8 medium_catalog_number[14]; /* 13 ASCII digits, null-terminated */
263 };
264
265 /* This is used by the CDROMPLAYBLK ioctl */
266 struct cdrom_blk
267 {
268 unsigned from;
269 unsigned short len;
270 };
271
272 #define CDROM_PACKET_SIZE 12
273
274 #define CGC_DATA_UNKNOWN 0
275 #define CGC_DATA_WRITE 1
276 #define CGC_DATA_READ 2
277 #define CGC_DATA_NONE 3
278
279 /* for CDROM_PACKET_COMMAND ioctl */
280 struct cdrom_generic_command
281 {
282 unsigned char cmd[CDROM_PACKET_SIZE];
283 unsigned char *buffer;
284 unsigned int buflen;
285 int stat;
286 struct request_sense *sense;
287 unsigned char data_direction;
288 int quiet;
289 int timeout;
290 void *reserved[1];
291 };
292
293
294 /*
295 * A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336,
296 * 2340, or 2352 bytes long.
297
298 * Sector types of the standard CD-ROM data formats:
299 *
300 * format sector type user data size (bytes)
301 * -----------------------------------------------------------------------------
302 * 1 (Red Book) CD-DA 2352 (CD_FRAMESIZE_RAW)
303 * 2 (Yellow Book) Mode1 Form1 2048 (CD_FRAMESIZE)
304 * 3 (Yellow Book) Mode1 Form2 2336 (CD_FRAMESIZE_RAW0)
305 * 4 (Green Book) Mode2 Form1 2048 (CD_FRAMESIZE)
306 * 5 (Green Book) Mode2 Form2 2328 (2324+4 spare bytes)
307 *
308 *
309 * The layout of the standard CD-ROM data formats:
310 * -----------------------------------------------------------------------------
311 * - audio (red): | audio_sample_bytes |
312 * | 2352 |
313 *
314 * - data (yellow, mode1): | sync - head - data - EDC - zero - ECC |
315 * | 12 - 4 - 2048 - 4 - 8 - 276 |
316 *
317 * - data (yellow, mode2): | sync - head - data |
318 * | 12 - 4 - 2336 |
319 *
320 * - XA data (green, mode2 form1): | sync - head - sub - data - EDC - ECC |
321 * | 12 - 4 - 8 - 2048 - 4 - 276 |
322 *
323 * - XA data (green, mode2 form2): | sync - head - sub - data - Spare |
324 * | 12 - 4 - 8 - 2324 - 4 |
325 *
326 */
327
328 /* Some generally useful CD-ROM information -- mostly based on the above */
329 #define CD_MINS 74 /* max. minutes per CD, not really a limit */
330 #define CD_SECS 60 /* seconds per minute */
331 #define CD_FRAMES 75 /* frames per second */
332 #define CD_SYNC_SIZE 12 /* 12 sync bytes per raw data frame */
333 #define CD_MSF_OFFSET 150 /* MSF numbering offset of first frame */
334 #define CD_CHUNK_SIZE 24 /* lowest-level "data bytes piece" */
335 #define CD_NUM_OF_CHUNKS 98 /* chunks per frame */
336 #define CD_FRAMESIZE_SUB 96 /* subchannel data "frame" size */
337 #define CD_HEAD_SIZE 4 /* header (address) bytes per raw data frame */
338 #define CD_SUBHEAD_SIZE 8 /* subheader bytes per raw XA data frame */
339 #define CD_EDC_SIZE 4 /* bytes EDC per most raw data frame types */
340 #define CD_ZERO_SIZE 8 /* bytes zero per yellow book mode 1 frame */
341 #define CD_ECC_SIZE 276 /* bytes ECC per most raw data frame types */
342 #define CD_FRAMESIZE 2048 /* bytes per frame, "cooked" mode */
343 #define CD_FRAMESIZE_RAW 2352 /* bytes per frame, "raw" mode */
344 #define CD_FRAMESIZE_RAWER 2646 /* The maximum possible returned bytes */
345 /* most drives don't deliver everything: */
346 #define CD_FRAMESIZE_RAW1 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE) /*2340*/
347 #define CD_FRAMESIZE_RAW0 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE-CD_HEAD_SIZE) /*2336*/
348
349 #define CD_XA_HEAD (CD_HEAD_SIZE+CD_SUBHEAD_SIZE) /* "before data" part of raw XA frame */
350 #define CD_XA_TAIL (CD_EDC_SIZE+CD_ECC_SIZE) /* "after data" part of raw XA frame */
351 #define CD_XA_SYNC_HEAD (CD_SYNC_SIZE+CD_XA_HEAD) /* sync bytes + header of XA frame */
352
353 /* CD-ROM address types (cdrom_tocentry.cdte_format) */
354 #define CDROM_LBA 0x01 /* "logical block": first frame is #0 */
355 #define CDROM_MSF 0x02 /* "minute-second-frame": binary, not bcd here! */
356
357 /* bit to tell whether track is data or audio (cdrom_tocentry.cdte_ctrl) */
358 #define CDROM_DATA_TRACK 0x04
359
360 /* The leadout track is always 0xAA, regardless of # of tracks on disc */
361 #define CDROM_LEADOUT 0xAA
362
363 /* audio states (from SCSI-2, but seen with other drives, too) */
364 #define CDROM_AUDIO_INVALID 0x00 /* audio status not supported */
365 #define CDROM_AUDIO_PLAY 0x11 /* audio play operation in progress */
366 #define CDROM_AUDIO_PAUSED 0x12 /* audio play operation paused */
367 #define CDROM_AUDIO_COMPLETED 0x13 /* audio play successfully completed */
368 #define CDROM_AUDIO_ERROR 0x14 /* audio play stopped due to error */
369 #define CDROM_AUDIO_NO_STATUS 0x15 /* no current audio status to return */
370
371 /* capability flags used with the uniform CD-ROM driver */
372 #define CDC_CLOSE_TRAY 0x1 /* caddy systems _can't_ close */
373 #define CDC_OPEN_TRAY 0x2 /* but _can_ eject. */
374 #define CDC_LOCK 0x4 /* disable manual eject */
375 #define CDC_SELECT_SPEED 0x8 /* programmable speed */
376 #define CDC_SELECT_DISC 0x10 /* select disc from juke-box */
377 #define CDC_MULTI_SESSION 0x20 /* read sessions>1 */
378 #define CDC_MCN 0x40 /* Medium Catalog Number */
379 #define CDC_MEDIA_CHANGED 0x80 /* media changed */
380 #define CDC_PLAY_AUDIO 0x100 /* audio functions */
381 #define CDC_RESET 0x200 /* hard reset device */
382 #define CDC_IOCTLS 0x400 /* driver has non-standard ioctls */
383 #define CDC_DRIVE_STATUS 0x800 /* driver implements drive status */
384 #define CDC_GENERIC_PACKET 0x1000 /* driver implements generic packets */
385 #define CDC_CD_R 0x2000 /* drive is a CD-R */
386 #define CDC_CD_RW 0x4000 /* drive is a CD-RW */
387 #define CDC_DVD 0x8000 /* drive is a DVD */
388 #define CDC_DVD_R 0x10000 /* drive can write DVD-R */
389 #define CDC_DVD_RAM 0x20000 /* drive can write DVD-RAM */
390
391 /* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */
392 #define CDS_NO_INFO 0 /* if not implemented */
393 #define CDS_NO_DISC 1
394 #define CDS_TRAY_OPEN 2
395 #define CDS_DRIVE_NOT_READY 3
396 #define CDS_DISC_OK 4
397
398 /* return values for the CDROM_DISC_STATUS ioctl */
399 /* can also return CDS_NO_[INFO|DISC], from above */
400 #define CDS_AUDIO 100
401 #define CDS_DATA_1 101
402 #define CDS_DATA_2 102
403 #define CDS_XA_2_1 103
404 #define CDS_XA_2_2 104
405 #define CDS_MIXED 105
406
407 /* User-configurable behavior options for the uniform CD-ROM driver */
408 #define CDO_AUTO_CLOSE 0x1 /* close tray on first open() */
409 #define CDO_AUTO_EJECT 0x2 /* open tray on last release() */
410 #define CDO_USE_FFLAGS 0x4 /* use O_NONBLOCK information on open */
411 #define CDO_LOCK 0x8 /* lock tray on open files */
412 #define CDO_CHECK_TYPE 0x10 /* check type on open for data */
413
414 /* Special codes used when specifying changer slots. */
415 #define CDSL_NONE ((int) (~0U>>1)-1)
416 #define CDSL_CURRENT ((int) (~0U>>1))
417
418 /* For partition based multisession access. IDE can handle 64 partitions
419 * per drive - SCSI CD-ROM's use minors to differentiate between the
420 * various drives, so we can't do multisessions the same way there.
421 * Use the -o session=x option to mount on them.
422 */
423 #define CD_PART_MAX 64
424 #define CD_PART_MASK (CD_PART_MAX - 1)
425
426 /*********************************************************************
427 * Generic Packet commands, MMC commands, and such
428 *********************************************************************/
429
430 /* The generic packet command opcodes for CD/DVD Logical Units,
431 * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
432 #define GPCMD_BLANK 0xa1
433 #define GPCMD_CLOSE_TRACK 0x5b
434 #define GPCMD_FLUSH_CACHE 0x35
435 #define GPCMD_FORMAT_UNIT 0x04
436 #define GPCMD_GET_CONFIGURATION 0x46
437 #define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
438 #define GPCMD_GET_PERFORMANCE 0xac
439 #define GPCMD_INQUIRY 0x12
440 #define GPCMD_LOAD_UNLOAD 0xa6
441 #define GPCMD_MECHANISM_STATUS 0xbd
442 #define GPCMD_MODE_SELECT_10 0x55
443 #define GPCMD_MODE_SENSE_10 0x5a
444 #define GPCMD_PAUSE_RESUME 0x4b
445 #define GPCMD_PLAY_AUDIO_10 0x45
446 #define GPCMD_PLAY_AUDIO_MSF 0x47
447 #define GPCMD_PLAY_AUDIO_TI 0x48
448 #define GPCMD_PLAY_CD 0xbc
449 #define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
450 #define GPCMD_READ_10 0x28
451 #define GPCMD_READ_12 0xa8
452 #define GPCMD_READ_CDVD_CAPACITY 0x25
453 #define GPCMD_READ_CD 0xbe
454 #define GPCMD_READ_CD_MSF 0xb9
455 #define GPCMD_READ_DISC_INFO 0x51
456 #define GPCMD_READ_DVD_STRUCTURE 0xad
457 #define GPCMD_READ_FORMAT_CAPACITIES 0x23
458 #define GPCMD_READ_HEADER 0x44
459 #define GPCMD_READ_TRACK_RZONE_INFO 0x52
460 #define GPCMD_READ_SUBCHANNEL 0x42
461 #define GPCMD_READ_TOC_PMA_ATIP 0x43
462 #define GPCMD_REPAIR_RZONE_TRACK 0x58
463 #define GPCMD_REPORT_KEY 0xa4
464 #define GPCMD_REQUEST_SENSE 0x03
465 #define GPCMD_RESERVE_RZONE_TRACK 0x53
466 #define GPCMD_SCAN 0xba
467 #define GPCMD_SEEK 0x2b
468 #define GPCMD_SEND_DVD_STRUCTURE 0xad
469 #define GPCMD_SEND_EVENT 0xa2
470 #define GPCMD_SEND_KEY 0xa3
471 #define GPCMD_SEND_OPC 0x54
472 #define GPCMD_SET_READ_AHEAD 0xa7
473 #define GPCMD_SET_STREAMING 0xb6
474 #define GPCMD_START_STOP_UNIT 0x1b
475 #define GPCMD_STOP_PLAY_SCAN 0x4e
476 #define GPCMD_TEST_UNIT_READY 0x00
477 #define GPCMD_VERIFY_10 0x2f
478 #define GPCMD_WRITE_10 0x2a
479 #define GPCMD_WRITE_AND_VERIFY_10 0x2e
480 /* This is listed as optional in ATAPI 2.6, but is (curiously)
481 * missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji
482 * Table 377 as an MMC command for SCSi devices though... Most ATAPI
483 * drives support it. */
484 #define GPCMD_SET_SPEED 0xbb
485 /* This seems to be a SCSI specific CD-ROM opcode
486 * to play data at track/index */
487 #define GPCMD_PLAYAUDIO_TI 0x48
488 /*
489 * From MS Media Status Notification Support Specification. For
490 * older drives only.
491 */
492 #define GPCMD_GET_MEDIA_STATUS 0xda
493
494 /* Mode page codes for mode sense/set */
495 #define GPMODE_R_W_ERROR_PAGE 0x01
496 #define GPMODE_WRITE_PARMS_PAGE 0x05
497 #define GPMODE_AUDIO_CTL_PAGE 0x0e
498 #define GPMODE_POWER_PAGE 0x1a
499 #define GPMODE_FAULT_FAIL_PAGE 0x1c
500 #define GPMODE_TO_PROTECT_PAGE 0x1d
501 #define GPMODE_CAPABILITIES_PAGE 0x2a
502 #define GPMODE_ALL_PAGES 0x3f
503 /* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor
504 * of MODE_SENSE_POWER_PAGE */
505 #define GPMODE_CDROM_PAGE 0x0d
506
507
508
509 /* DVD struct types */
510 #define DVD_STRUCT_PHYSICAL 0x00
511 #define DVD_STRUCT_COPYRIGHT 0x01
512 #define DVD_STRUCT_DISCKEY 0x02
513 #define DVD_STRUCT_BCA 0x03
514 #define DVD_STRUCT_MANUFACT 0x04
515
516 struct dvd_layer {
517 __u8 book_version : 4;
518 __u8 book_type : 4;
519 __u8 min_rate : 4;
520 __u8 disc_size : 4;
521 __u8 layer_type : 4;
522 __u8 track_path : 1;
523 __u8 nlayers : 2;
524 __u8 track_density : 4;
525 __u8 linear_density : 4;
526 __u8 bca : 1;
527 __u32 start_sector;
528 __u32 end_sector;
529 __u32 end_sector_l0;
530 };
531
532 #define DVD_LAYERS 4
533
534 struct dvd_physical {
535 __u8 type;
536 __u8 layer_num;
537 struct dvd_layer layer[DVD_LAYERS];
538 };
539
540 struct dvd_copyright {
541 __u8 type;
542
543 __u8 layer_num;
544 __u8 cpst;
545 __u8 rmi;
546 };
547
548 struct dvd_disckey {
549 __u8 type;
550
551 unsigned agid : 2;
552 __u8 value[2048];
553 };
554
555 struct dvd_bca {
556 __u8 type;
557
558 int len;
559 __u8 value[188];
560 };
561
562 struct dvd_manufact {
563 __u8 type;
564
565 __u8 layer_num;
566 int len;
567 __u8 value[2048];
568 };
569
570 typedef union {
571 __u8 type;
572
573 struct dvd_physical physical;
574 struct dvd_copyright copyright;
575 struct dvd_disckey disckey;
576 struct dvd_bca bca;
577 struct dvd_manufact manufact;
578 } dvd_struct;
579
580 /*
581 * DVD authentication ioctl
582 */
583
584 /* Authentication states */
585 #define DVD_LU_SEND_AGID 0
586 #define DVD_HOST_SEND_CHALLENGE 1
587 #define DVD_LU_SEND_KEY1 2
588 #define DVD_LU_SEND_CHALLENGE 3
589 #define DVD_HOST_SEND_KEY2 4
590
591 /* Termination states */
592 #define DVD_AUTH_ESTABLISHED 5
593 #define DVD_AUTH_FAILURE 6
594
595 /* Other functions */
596 #define DVD_LU_SEND_TITLE_KEY 7
597 #define DVD_LU_SEND_ASF 8
598 #define DVD_INVALIDATE_AGID 9
599 #define DVD_LU_SEND_RPC_STATE 10
600 #define DVD_HOST_SEND_RPC_STATE 11
601
602 /* State data */
603 typedef __u8 dvd_key[5]; /* 40-bit value, MSB is first elem. */
604 typedef __u8 dvd_challenge[10]; /* 80-bit value, MSB is first elem. */
605
606 struct dvd_lu_send_agid {
607 __u8 type;
608 unsigned agid : 2;
609 };
610
611 struct dvd_host_send_challenge {
612 __u8 type;
613 unsigned agid : 2;
614
615 dvd_challenge chal;
616 };
617
618 struct dvd_send_key {
619 __u8 type;
620 unsigned agid : 2;
621
622 dvd_key key;
623 };
624
625 struct dvd_lu_send_challenge {
626 __u8 type;
627 unsigned agid : 2;
628
629 dvd_challenge chal;
630 };
631
632 #define DVD_CPM_NO_COPYRIGHT 0
633 #define DVD_CPM_COPYRIGHTED 1
634
635 #define DVD_CP_SEC_NONE 0
636 #define DVD_CP_SEC_EXIST 1
637
638 #define DVD_CGMS_UNRESTRICTED 0
639 #define DVD_CGMS_SINGLE 2
640 #define DVD_CGMS_RESTRICTED 3
641
642 struct dvd_lu_send_title_key {
643 __u8 type;
644 unsigned agid : 2;
645
646 dvd_key title_key;
647 int lba;
648 unsigned cpm : 1;
649 unsigned cp_sec : 1;
650 unsigned cgms : 2;
651 };
652
653 struct dvd_lu_send_asf {
654 __u8 type;
655 unsigned agid : 2;
656
657 unsigned asf : 1;
658 };
659
660 struct dvd_host_send_rpcstate {
661 __u8 type;
662 __u8 pdrc;
663 };
664
665 struct dvd_lu_send_rpcstate {
666 __u8 type : 2;
667 __u8 vra : 3;
668 __u8 ucca : 3;
669 __u8 region_mask;
670 __u8 rpc_scheme;
671 };
672
673 typedef union {
674 __u8 type;
675
676 struct dvd_lu_send_agid lsa;
677 struct dvd_host_send_challenge hsc;
678 struct dvd_send_key lsk;
679 struct dvd_lu_send_challenge lsc;
680 struct dvd_send_key hsk;
681 struct dvd_lu_send_title_key lstk;
682 struct dvd_lu_send_asf lsasf;
683 struct dvd_host_send_rpcstate hrpcs;
684 struct dvd_lu_send_rpcstate lrpcs;
685 } dvd_authinfo;
686
687 struct request_sense {
688 #if defined(__BIG_ENDIAN_BITFIELD)
689 __u8 valid : 1;
690 __u8 error_code : 7;
691 #elif defined(__LITTLE_ENDIAN_BITFIELD)
692 __u8 error_code : 7;
693 __u8 valid : 1;
694 #endif
695 __u8 segment_number;
696 #if defined(__BIG_ENDIAN_BITFIELD)
697 __u8 reserved1 : 2;
698 __u8 ili : 1;
699 __u8 reserved2 : 1;
700 __u8 sense_key : 4;
701 #elif defined(__LITTLE_ENDIAN_BITFIELD)
702 __u8 sense_key : 4;
703 __u8 reserved2 : 1;
704 __u8 ili : 1;
705 __u8 reserved1 : 2;
706 #endif
707 __u8 information[4];
708 __u8 add_sense_len;
709 __u8 command_info[4];
710 __u8 asc;
711 __u8 ascq;
712 __u8 fruc;
713 __u8 sks[3];
714 __u8 asb[46];
715 };
716
717 #ifdef __KERNEL__
718 #include <linux/devfs_fs_kernel.h>
719
720 struct cdrom_write_settings {
721 unsigned char fpacket; /* fixed/variable packets */
722 unsigned long packet_size; /* write out this number of packets */
723 unsigned long nwa; /* next writeable address */
724 unsigned char writeable; /* cdrom is writeable */
725 };
726
727 /* Uniform cdrom data structures for cdrom.c */
728 struct cdrom_device_info {
729 struct cdrom_device_ops *ops; /* link to device_ops */
730 struct cdrom_device_info *next; /* next device_info for this major */
731 void *handle; /* driver-dependent data */
732 devfs_handle_t de; /* real driver should create this */
733 int number; /* generic driver updates this */
734 /* specifications */
735 kdev_t dev; /* device number */
736 int mask; /* mask of capability: disables them */
737 int speed; /* maximum speed for reading data */
738 int capacity; /* number of discs in jukebox */
739 /* device-related storage */
740 int options : 30; /* options flags */
741 unsigned mc_flags : 2; /* media change buffer flags */
742 int use_count; /* number of times device opened */
743 char name[20]; /* name of the device type */
744 /* per-device flags */
745 __u8 sanyo_slot : 2; /* Sanyo 3 CD changer support */
746 __u8 reserved : 6; /* not used yet */
747 struct cdrom_write_settings write;
748 };
749
750 struct cdrom_device_ops {
751 /* routines */
752 int (*open) (struct cdrom_device_info *, int);
753 void (*release) (struct cdrom_device_info *);
754 int (*drive_status) (struct cdrom_device_info *, int);
755 int (*media_changed) (struct cdrom_device_info *, int);
756 int (*tray_move) (struct cdrom_device_info *, int);
757 int (*lock_door) (struct cdrom_device_info *, int);
758 int (*select_speed) (struct cdrom_device_info *, int);
759 int (*select_disc) (struct cdrom_device_info *, int);
760 int (*get_last_session) (struct cdrom_device_info *,
761 struct cdrom_multisession *);
762 int (*get_mcn) (struct cdrom_device_info *,
763 struct cdrom_mcn *);
764 /* hard reset device */
765 int (*reset) (struct cdrom_device_info *);
766 /* play stuff */
767 int (*audio_ioctl) (struct cdrom_device_info *,unsigned int, void *);
768 /* dev-specific */
769 int (*dev_ioctl) (struct cdrom_device_info *,
770 unsigned int, unsigned long);
771 /* driver specifications */
772 const int capability; /* capability flags */
773 int n_minors; /* number of active minor devices */
774 /* handle uniform packets for scsi type devices (scsi,atapi) */
775 int (*generic_packet) (struct cdrom_device_info *,
776 struct cdrom_generic_command *);
777 };
778
779 /* the general block_device operations structure: */
780 extern int cdrom_open(struct inode *, struct file *);
781 extern int cdrom_release(struct inode *, struct file *);
782 extern int cdrom_ioctl(struct inode *, struct file *, unsigned, unsigned long);
783 extern int cdrom_media_changed(kdev_t);
784
785 extern int register_cdrom(struct cdrom_device_info *cdi);
786 extern int unregister_cdrom(struct cdrom_device_info *cdi);
787
devfs_plain_cdrom(struct cdrom_device_info * cdi,struct block_device_operations * ops)788 static inline void devfs_plain_cdrom(struct cdrom_device_info *cdi,
789 struct block_device_operations *ops)
790 {
791 char vname[23];
792
793 sprintf (vname, "cdroms/cdrom%d", cdi->number);
794 cdi->de = devfs_register (NULL, vname, DEVFS_FL_DEFAULT,
795 MAJOR (cdi->dev), MINOR (cdi->dev),
796 S_IFBLK | S_IRUGO | S_IWUGO,
797 ops, NULL);
798 }
799
800 typedef struct {
801 int data;
802 int audio;
803 int cdi;
804 int xa;
805 long error;
806 } tracktype;
807
808 extern void cdrom_count_tracks(struct cdrom_device_info *cdi,tracktype* tracks);
809 extern int cdrom_get_next_writable(kdev_t dev, long *next_writable);
810 extern int cdrom_get_last_written(kdev_t dev, long *last_written);
811 extern int cdrom_number_of_slots(struct cdrom_device_info *cdi);
812 extern int cdrom_select_disc(struct cdrom_device_info *cdi, int slot);
813 extern int cdrom_mode_select(struct cdrom_device_info *cdi,
814 struct cdrom_generic_command *cgc);
815 extern int cdrom_mode_sense(struct cdrom_device_info *cdi,
816 struct cdrom_generic_command *cgc,
817 int page_code, int page_control);
818 extern void init_cdrom_command(struct cdrom_generic_command *cgc,
819 void *buffer, int len, int type);
820 extern struct cdrom_device_info *cdrom_find_device(kdev_t dev);
821
822 typedef struct {
823 __u16 disc_information_length;
824 #if defined(__BIG_ENDIAN_BITFIELD)
825 __u8 reserved1 : 3;
826 __u8 erasable : 1;
827 __u8 border_status : 2;
828 __u8 disc_status : 2;
829 #elif defined(__LITTLE_ENDIAN_BITFIELD)
830 __u8 disc_status : 2;
831 __u8 border_status : 2;
832 __u8 erasable : 1;
833 __u8 reserved1 : 3;
834 #else
835 #error "Please fix <asm/byteorder.h>"
836 #endif
837 __u8 n_first_track;
838 __u8 n_sessions_lsb;
839 __u8 first_track_lsb;
840 __u8 last_track_lsb;
841 #if defined(__BIG_ENDIAN_BITFIELD)
842 __u8 did_v : 1;
843 __u8 dbc_v : 1;
844 __u8 uru : 1;
845 __u8 reserved2 : 5;
846 #elif defined(__LITTLE_ENDIAN_BITFIELD)
847 __u8 reserved2 : 5;
848 __u8 uru : 1;
849 __u8 dbc_v : 1;
850 __u8 did_v : 1;
851 #endif
852 __u8 disc_type;
853 __u8 n_sessions_msb;
854 __u8 first_track_msb;
855 __u8 last_track_msb;
856 __u32 disc_id;
857 __u32 lead_in;
858 __u32 lead_out;
859 __u8 disc_bar_code[8];
860 __u8 reserved3;
861 __u8 n_opc;
862 } disc_information;
863
864 typedef struct {
865 __u16 track_information_length;
866 __u8 track_lsb;
867 __u8 session_lsb;
868 __u8 reserved1;
869 #if defined(__BIG_ENDIAN_BITFIELD)
870 __u8 reserved2 : 2;
871 __u8 damage : 1;
872 __u8 copy : 1;
873 __u8 track_mode : 4;
874 __u8 rt : 1;
875 __u8 blank : 1;
876 __u8 packet : 1;
877 __u8 fp : 1;
878 __u8 data_mode : 4;
879 __u8 reserved3 : 6;
880 __u8 lra_v : 1;
881 __u8 nwa_v : 1;
882 #elif defined(__LITTLE_ENDIAN_BITFIELD)
883 __u8 track_mode : 4;
884 __u8 copy : 1;
885 __u8 damage : 1;
886 __u8 reserved2 : 2;
887 __u8 data_mode : 4;
888 __u8 fp : 1;
889 __u8 packet : 1;
890 __u8 blank : 1;
891 __u8 rt : 1;
892 __u8 nwa_v : 1;
893 __u8 lra_v : 1;
894 __u8 reserved3 : 6;
895 #endif
896 __u32 track_start;
897 __u32 next_writable;
898 __u32 free_blocks;
899 __u32 fixed_packet_size;
900 __u32 track_size;
901 __u32 last_rec_address;
902 } track_information;
903
904 extern int cdrom_get_disc_info(kdev_t dev, disc_information *di);
905 extern int cdrom_get_track_info(kdev_t dev, __u16 track, __u8 type,
906 track_information *ti);
907
908 /* The SCSI spec says there could be 256 slots. */
909 #define CDROM_MAX_SLOTS 256
910
911 struct cdrom_mechstat_header {
912 #if defined(__BIG_ENDIAN_BITFIELD)
913 __u8 fault : 1;
914 __u8 changer_state : 2;
915 __u8 curslot : 5;
916 __u8 mech_state : 3;
917 __u8 door_open : 1;
918 __u8 reserved1 : 4;
919 #elif defined(__LITTLE_ENDIAN_BITFIELD)
920 __u8 curslot : 5;
921 __u8 changer_state : 2;
922 __u8 fault : 1;
923 __u8 reserved1 : 4;
924 __u8 door_open : 1;
925 __u8 mech_state : 3;
926 #endif
927 __u8 curlba[3];
928 __u8 nslots;
929 __u16 slot_tablelen;
930 };
931
932 struct cdrom_slot {
933 #if defined(__BIG_ENDIAN_BITFIELD)
934 __u8 disc_present : 1;
935 __u8 reserved1 : 6;
936 __u8 change : 1;
937 #elif defined(__LITTLE_ENDIAN_BITFIELD)
938 __u8 change : 1;
939 __u8 reserved1 : 6;
940 __u8 disc_present : 1;
941 #endif
942 __u8 reserved2[3];
943 };
944
945 struct cdrom_changer_info {
946 struct cdrom_mechstat_header hdr;
947 struct cdrom_slot slots[CDROM_MAX_SLOTS];
948 };
949
950 typedef enum {
951 mechtype_caddy = 0,
952 mechtype_tray = 1,
953 mechtype_popup = 2,
954 mechtype_individual_changer = 4,
955 mechtype_cartridge_changer = 5
956 } mechtype_t;
957
958 struct mode_page_header {
959 __u16 mode_data_length;
960 __u8 medium_type;
961 __u8 reserved1;
962 __u8 reserved2;
963 __u8 reserved3;
964 __u16 desc_length;
965 };
966
967 typedef struct {
968 #if defined(__BIG_ENDIAN_BITFIELD)
969 __u8 ps : 1;
970 __u8 reserved1 : 1;
971 __u8 page_code : 6;
972 __u8 page_length;
973 __u8 reserved2 : 1;
974 __u8 bufe : 1;
975 __u8 ls_v : 1;
976 __u8 test_write : 1;
977 __u8 write_type : 4;
978 __u8 multi_session : 2; /* or border, DVD */
979 __u8 fp : 1;
980 __u8 copy : 1;
981 __u8 track_mode : 4;
982 __u8 reserved3 : 4;
983 __u8 data_block_type : 4;
984 #elif defined(__LITTLE_ENDIAN_BITFIELD)
985 __u8 page_code : 6;
986 __u8 reserved1 : 1;
987 __u8 ps : 1;
988 __u8 page_length;
989 __u8 write_type : 4;
990 __u8 test_write : 1;
991 __u8 ls_v : 1;
992 __u8 bufe : 1;
993 __u8 reserved2 : 1;
994 __u8 track_mode : 4;
995 __u8 copy : 1;
996 __u8 fp : 1;
997 __u8 multi_session : 2; /* or border, DVD */
998 __u8 data_block_type : 4;
999 __u8 reserved3 : 4;
1000 #endif
1001 __u8 link_size;
1002 __u8 reserved4;
1003 #if defined(__BIG_ENDIAN_BITFIELD)
1004 __u8 reserved5 : 2;
1005 __u8 app_code : 6;
1006 #elif defined(__LITTLE_ENDIAN_BITFIELD)
1007 __u8 app_code : 6;
1008 __u8 reserved5 : 2;
1009 #endif
1010 __u8 session_format;
1011 __u8 reserved6;
1012 __u32 packet_size;
1013 __u16 audio_pause;
1014 __u8 mcn[16];
1015 __u8 isrc[16];
1016 __u8 subhdr0;
1017 __u8 subhdr1;
1018 __u8 subhdr2;
1019 __u8 subhdr3;
1020 } __attribute__((packed)) write_param_page;
1021
1022 struct modesel_head
1023 {
1024 __u8 reserved1;
1025 __u8 medium;
1026 __u8 reserved2;
1027 __u8 block_desc_length;
1028 __u8 density;
1029 __u8 number_of_blocks_hi;
1030 __u8 number_of_blocks_med;
1031 __u8 number_of_blocks_lo;
1032 __u8 reserved3;
1033 __u8 block_length_hi;
1034 __u8 block_length_med;
1035 __u8 block_length_lo;
1036 };
1037
1038 typedef struct {
1039 __u16 report_key_length;
1040 __u8 reserved1;
1041 __u8 reserved2;
1042 #if defined(__BIG_ENDIAN_BITFIELD)
1043 __u8 type_code : 2;
1044 __u8 vra : 3;
1045 __u8 ucca : 3;
1046 #elif defined(__LITTLE_ENDIAN_BITFIELD)
1047 __u8 ucca : 3;
1048 __u8 vra : 3;
1049 __u8 type_code : 2;
1050 #endif
1051 __u8 region_mask;
1052 __u8 rpc_scheme;
1053 __u8 reserved3;
1054 } rpc_state_t;
1055
1056 #endif /* End of kernel only stuff */
1057
1058 #endif /* _LINUX_CDROM_H */
1059