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cdrom.h
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1 /*
2  * -- <linux/cdrom.h>
3  * General header file for linux CD-ROM drivers
4  * Copyright (C) 1992 David Giller, [email protected]
5  * 1994, 1995 Eberhard Mönkeberg, [email protected]
6  * 1996 David van Leeuwen, [email protected]
7  * 1997, 1998 Erik Andersen, [email protected]
8  * 1998-2002 Jens Axboe, [email protected]
9  */
10 
11 #ifndef _UAPI_LINUX_CDROM_H
12 #define _UAPI_LINUX_CDROM_H
13 
14 #include <linux/types.h>
15 #include <asm/byteorder.h>
16 
17 /*******************************************************
18  * As of Linux 2.1.x, all Linux CD-ROM application programs will use this
19  * (and only this) include file. It is my hope to provide Linux with
20  * a uniform interface between software accessing CD-ROMs and the various
21  * device drivers that actually talk to the drives. There may still be
22  * 23 different kinds of strange CD-ROM drives, but at least there will
23  * now be one, and only one, Linux CD-ROM interface.
24  *
25  * Additionally, as of Linux 2.1.x, all Linux application programs
26  * should use the O_NONBLOCK option when opening a CD-ROM device
27  * for subsequent ioctl commands. This allows for neat system errors
28  * like "No medium found" or "Wrong medium type" upon attempting to
29  * mount or play an empty slot, mount an audio disc, or play a data disc.
30  * Generally, changing an application program to support O_NONBLOCK
31  * is as easy as the following:
32  * - drive = open("/dev/cdrom", O_RDONLY);
33  * + drive = open("/dev/cdrom", O_RDONLY | O_NONBLOCK);
34  * It is worth the small change.
35  *
36  * Patches for many common CD programs (provided by David A. van Leeuwen)
37  * can be found at: ftp://ftp.gwdg.de/pub/linux/cdrom/drivers/cm206/
38  *
39  *******************************************************/
40 
41 /* When a driver supports a certain function, but the cdrom drive we are
42  * using doesn't, we will return the error EDRIVE_CANT_DO_THIS. We will
43  * borrow the "Operation not supported" error from the network folks to
44  * accomplish this. Maybe someday we will get a more targeted error code,
45  * but this will do for now... */
46 #define EDRIVE_CANT_DO_THIS EOPNOTSUPP
47 
48 /*******************************************************
49  * The CD-ROM IOCTL commands -- these should be supported by
50  * all the various cdrom drivers. For the CD-ROM ioctls, we
51  * will commandeer byte 0x53, or 'S'.
52  *******************************************************/
53 #define CDROMPAUSE 0x5301 /* Pause Audio Operation */
54 #define CDROMRESUME 0x5302 /* Resume paused Audio Operation */
55 #define CDROMPLAYMSF 0x5303 /* Play Audio MSF (struct cdrom_msf) */
56 #define CDROMPLAYTRKIND 0x5304 /* Play Audio Track/index
57  (struct cdrom_ti) */
58 #define CDROMREADTOCHDR 0x5305 /* Read TOC header
59  (struct cdrom_tochdr) */
60 #define CDROMREADTOCENTRY 0x5306 /* Read TOC entry
61  (struct cdrom_tocentry) */
62 #define CDROMSTOP 0x5307 /* Stop the cdrom drive */
63 #define CDROMSTART 0x5308 /* Start the cdrom drive */
64 #define CDROMEJECT 0x5309 /* Ejects the cdrom media */
65 #define CDROMVOLCTRL 0x530a /* Control output volume
66  (struct cdrom_volctrl) */
67 #define CDROMSUBCHNL 0x530b /* Read subchannel data
68  (struct cdrom_subchnl) */
69 #define CDROMREADMODE2 0x530c /* Read CDROM mode 2 data (2336 Bytes)
70  (struct cdrom_read) */
71 #define CDROMREADMODE1 0x530d /* Read CDROM mode 1 data (2048 Bytes)
72  (struct cdrom_read) */
73 #define CDROMREADAUDIO 0x530e /* (struct cdrom_read_audio) */
74 #define CDROMEJECT_SW 0x530f /* enable(1)/disable(0) auto-ejecting */
75 #define CDROMMULTISESSION 0x5310 /* Obtain the start-of-last-session
76  address of multi session disks
77  (struct cdrom_multisession) */
78 #define CDROM_GET_MCN 0x5311 /* Obtain the "Universal Product Code"
79  if available (struct cdrom_mcn) */
80 #define CDROM_GET_UPC CDROM_GET_MCN /* This one is deprecated,
81  but here anyway for compatibility */
82 #define CDROMRESET 0x5312 /* hard-reset the drive */
83 #define CDROMVOLREAD 0x5313 /* Get the drive's volume setting
84  (struct cdrom_volctrl) */
85 #define CDROMREADRAW 0x5314 /* read data in raw mode (2352 Bytes)
86  (struct cdrom_read) */
87 /*
88  * These ioctls are used only used in aztcd.c and optcd.c
89  */
90 #define CDROMREADCOOKED 0x5315 /* read data in cooked mode */
91 #define CDROMSEEK 0x5316 /* seek msf address */
92 
93 /*
94  * This ioctl is only used by the scsi-cd driver.
95  It is for playing audio in logical block addressing mode.
96  */
97 #define CDROMPLAYBLK 0x5317 /* (struct cdrom_blk) */
98 
99 /*
100  * These ioctls are only used in optcd.c
101  */
102 #define CDROMREADALL 0x5318 /* read all 2646 bytes */
103 
104 /*
105  * These ioctls are (now) only in ide-cd.c for controlling
106  * drive spindown time. They should be implemented in the
107  * Uniform driver, via generic packet commands, GPCMD_MODE_SELECT_10,
108  * GPCMD_MODE_SENSE_10 and the GPMODE_POWER_PAGE...
109  * -Erik
110  */
111 #define CDROMGETSPINDOWN 0x531d
112 #define CDROMSETSPINDOWN 0x531e
113 
114 /*
115  * These ioctls are implemented through the uniform CD-ROM driver
116  * They _will_ be adopted by all CD-ROM drivers, when all the CD-ROM
117  * drivers are eventually ported to the uniform CD-ROM driver interface.
118  */
119 #define CDROMCLOSETRAY 0x5319 /* pendant of CDROMEJECT */
120 #define CDROM_SET_OPTIONS 0x5320 /* Set behavior options */
121 #define CDROM_CLEAR_OPTIONS 0x5321 /* Clear behavior options */
122 #define CDROM_SELECT_SPEED 0x5322 /* Set the CD-ROM speed */
123 #define CDROM_SELECT_DISC 0x5323 /* Select disc (for juke-boxes) */
124 #define CDROM_MEDIA_CHANGED 0x5325 /* Check is media changed */
125 #define CDROM_DRIVE_STATUS 0x5326 /* Get tray position, etc. */
126 #define CDROM_DISC_STATUS 0x5327 /* Get disc type, etc. */
127 #define CDROM_CHANGER_NSLOTS 0x5328 /* Get number of slots */
128 #define CDROM_LOCKDOOR 0x5329 /* lock or unlock door */
129 #define CDROM_DEBUG 0x5330 /* Turn debug messages on/off */
130 #define CDROM_GET_CAPABILITY 0x5331 /* get capabilities */
131 
132 /* Note that scsi/scsi_ioctl.h also uses 0x5382 - 0x5386.
133  * Future CDROM ioctls should be kept below 0x537F
134  */
135 
136 /* This ioctl is only used by sbpcd at the moment */
137 #define CDROMAUDIOBUFSIZ 0x5382 /* set the audio buffer size */
138  /* conflict with SCSI_IOCTL_GET_IDLUN */
139 
140 /* DVD-ROM Specific ioctls */
141 #define DVD_READ_STRUCT 0x5390 /* Read structure */
142 #define DVD_WRITE_STRUCT 0x5391 /* Write structure */
143 #define DVD_AUTH 0x5392 /* Authentication */
144 
145 #define CDROM_SEND_PACKET 0x5393 /* send a packet to the drive */
146 #define CDROM_NEXT_WRITABLE 0x5394 /* get next writable block */
147 #define CDROM_LAST_WRITTEN 0x5395 /* get last block written on disc */
148 
149 /*******************************************************
150  * CDROM IOCTL structures
151  *******************************************************/
152 
153 /* Address in MSF format */
154 struct cdrom_msf0
155 {
156  __u8 minute;
157  __u8 second;
158  __u8 frame;
159 };
160 
161 /* Address in either MSF or logical format */
162 union cdrom_addr
163 {
164  struct cdrom_msf0 msf;
165  int lba;
166 };
167 
168 /* This struct is used by the CDROMPLAYMSF ioctl */
169 struct cdrom_msf
170 {
171  __u8 cdmsf_min0; /* start minute */
172  __u8 cdmsf_sec0; /* start second */
173  __u8 cdmsf_frame0; /* start frame */
174  __u8 cdmsf_min1; /* end minute */
175  __u8 cdmsf_sec1; /* end second */
176  __u8 cdmsf_frame1; /* end frame */
177 };
178 
179 /* This struct is used by the CDROMPLAYTRKIND ioctl */
180 struct cdrom_ti
181 {
182  __u8 cdti_trk0; /* start track */
183  __u8 cdti_ind0; /* start index */
184  __u8 cdti_trk1; /* end track */
185  __u8 cdti_ind1; /* end index */
186 };
187 
188 /* This struct is used by the CDROMREADTOCHDR ioctl */
189 struct cdrom_tochdr
190 {
191  __u8 cdth_trk0; /* start track */
192  __u8 cdth_trk1; /* end track */
193 };
194 
195 /* This struct is used by the CDROMVOLCTRL and CDROMVOLREAD ioctls */
196 struct cdrom_volctrl
197 {
198  __u8 channel0;
199  __u8 channel1;
200  __u8 channel2;
201  __u8 channel3;
202 };
203 
204 /* This struct is used by the CDROMSUBCHNL ioctl */
205 struct cdrom_subchnl
206 {
207  __u8 cdsc_format;
208  __u8 cdsc_audiostatus;
209  __u8 cdsc_adr: 4;
210  __u8 cdsc_ctrl: 4;
211  __u8 cdsc_trk;
212  __u8 cdsc_ind;
213  union cdrom_addr cdsc_absaddr;
214  union cdrom_addr cdsc_reladdr;
215 };
216 
217 
218 /* This struct is used by the CDROMREADTOCENTRY ioctl */
219 struct cdrom_tocentry
220 {
221  __u8 cdte_track;
222  __u8 cdte_adr :4;
223  __u8 cdte_ctrl :4;
224  __u8 cdte_format;
225  union cdrom_addr cdte_addr;
226  __u8 cdte_datamode;
227 };
228 
229 /* This struct is used by the CDROMREADMODE1, and CDROMREADMODE2 ioctls */
230 struct cdrom_read
231 {
232  int cdread_lba;
233  char *cdread_bufaddr;
234  int cdread_buflen;
235 };
236 
237 /* This struct is used by the CDROMREADAUDIO ioctl */
238 struct cdrom_read_audio
239 {
240  union cdrom_addr addr; /* frame address */
241  __u8 addr_format; /* CDROM_LBA or CDROM_MSF */
242  int nframes; /* number of 2352-byte-frames to read at once */
243  __u8 __user *buf; /* frame buffer (size: nframes*2352 bytes) */
244 };
245 
246 /* This struct is used with the CDROMMULTISESSION ioctl */
247 struct cdrom_multisession
248 {
249  union cdrom_addr addr; /* frame address: start-of-last-session
250  (not the new "frame 16"!). Only valid
251  if the "xa_flag" is true. */
252  __u8 xa_flag; /* 1: "is XA disk" */
253  __u8 addr_format; /* CDROM_LBA or CDROM_MSF */
254 };
255 
256 /* This struct is used with the CDROM_GET_MCN ioctl.
257  * Very few audio discs actually have Universal Product Code information,
258  * which should just be the Medium Catalog Number on the box. Also note
259  * that the way the codeis written on CD is _not_ uniform across all discs!
260  */
261 struct cdrom_mcn
262 {
263  __u8 medium_catalog_number[14]; /* 13 ASCII digits, null-terminated */
264 };
265 
266 /* This is used by the CDROMPLAYBLK ioctl */
267 struct cdrom_blk
268 {
269  unsigned from;
270  unsigned short len;
271 };
272 
273 #define CDROM_PACKET_SIZE 12
274 
275 #define CGC_DATA_UNKNOWN 0
276 #define CGC_DATA_WRITE 1
277 #define CGC_DATA_READ 2
278 #define CGC_DATA_NONE 3
279 
280 /* for CDROM_PACKET_COMMAND ioctl */
281 struct cdrom_generic_command
282 {
283  unsigned char cmd[CDROM_PACKET_SIZE];
284  unsigned char __user *buffer;
285  unsigned int buflen;
286  int stat;
287  struct request_sense __user *sense;
288  unsigned char data_direction;
289  int quiet;
290  int timeout;
291  void __user *reserved[1]; /* unused, actually */
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_DRIVE_STATUS 0x800 /* driver implements drive status */
383 #define CDC_GENERIC_PACKET 0x1000 /* driver implements generic packets */
384 #define CDC_CD_R 0x2000 /* drive is a CD-R */
385 #define CDC_CD_RW 0x4000 /* drive is a CD-RW */
386 #define CDC_DVD 0x8000 /* drive is a DVD */
387 #define CDC_DVD_R 0x10000 /* drive can write DVD-R */
388 #define CDC_DVD_RAM 0x20000 /* drive can write DVD-RAM */
389 #define CDC_MO_DRIVE 0x40000 /* drive is an MO device */
390 #define CDC_MRW 0x80000 /* drive can read MRW */
391 #define CDC_MRW_W 0x100000 /* drive can write MRW */
392 #define CDC_RAM 0x200000 /* ok to open for WRITE */
393 
394 /* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */
395 #define CDS_NO_INFO 0 /* if not implemented */
396 #define CDS_NO_DISC 1
397 #define CDS_TRAY_OPEN 2
398 #define CDS_DRIVE_NOT_READY 3
399 #define CDS_DISC_OK 4
400 
401 /* return values for the CDROM_DISC_STATUS ioctl */
402 /* can also return CDS_NO_[INFO|DISC], from above */
403 #define CDS_AUDIO 100
404 #define CDS_DATA_1 101
405 #define CDS_DATA_2 102
406 #define CDS_XA_2_1 103
407 #define CDS_XA_2_2 104
408 #define CDS_MIXED 105
409 
410 /* User-configurable behavior options for the uniform CD-ROM driver */
411 #define CDO_AUTO_CLOSE 0x1 /* close tray on first open() */
412 #define CDO_AUTO_EJECT 0x2 /* open tray on last release() */
413 #define CDO_USE_FFLAGS 0x4 /* use O_NONBLOCK information on open */
414 #define CDO_LOCK 0x8 /* lock tray on open files */
415 #define CDO_CHECK_TYPE 0x10 /* check type on open for data */
416 
417 /* Special codes used when specifying changer slots. */
418 #define CDSL_NONE (INT_MAX-1)
419 #define CDSL_CURRENT INT_MAX
420 
421 /* For partition based multisession access. IDE can handle 64 partitions
422  * per drive - SCSI CD-ROM's use minors to differentiate between the
423  * various drives, so we can't do multisessions the same way there.
424  * Use the -o session=x option to mount on them.
425  */
426 #define CD_PART_MAX 64
427 #define CD_PART_MASK (CD_PART_MAX - 1)
428 
429 /*********************************************************************
430  * Generic Packet commands, MMC commands, and such
431  *********************************************************************/
432 
433  /* The generic packet command opcodes for CD/DVD Logical Units,
434  * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
435 #define GPCMD_BLANK 0xa1
436 #define GPCMD_CLOSE_TRACK 0x5b
437 #define GPCMD_FLUSH_CACHE 0x35
438 #define GPCMD_FORMAT_UNIT 0x04
439 #define GPCMD_GET_CONFIGURATION 0x46
440 #define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
441 #define GPCMD_GET_PERFORMANCE 0xac
442 #define GPCMD_INQUIRY 0x12
443 #define GPCMD_LOAD_UNLOAD 0xa6
444 #define GPCMD_MECHANISM_STATUS 0xbd
445 #define GPCMD_MODE_SELECT_10 0x55
446 #define GPCMD_MODE_SENSE_10 0x5a
447 #define GPCMD_PAUSE_RESUME 0x4b
448 #define GPCMD_PLAY_AUDIO_10 0x45
449 #define GPCMD_PLAY_AUDIO_MSF 0x47
450 #define GPCMD_PLAY_AUDIO_TI 0x48
451 #define GPCMD_PLAY_CD 0xbc
452 #define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e
453 #define GPCMD_READ_10 0x28
454 #define GPCMD_READ_12 0xa8
455 #define GPCMD_READ_BUFFER 0x3c
456 #define GPCMD_READ_BUFFER_CAPACITY 0x5c
457 #define GPCMD_READ_CDVD_CAPACITY 0x25
458 #define GPCMD_READ_CD 0xbe
459 #define GPCMD_READ_CD_MSF 0xb9
460 #define GPCMD_READ_DISC_INFO 0x51
461 #define GPCMD_READ_DVD_STRUCTURE 0xad
462 #define GPCMD_READ_FORMAT_CAPACITIES 0x23
463 #define GPCMD_READ_HEADER 0x44
464 #define GPCMD_READ_TRACK_RZONE_INFO 0x52
465 #define GPCMD_READ_SUBCHANNEL 0x42
466 #define GPCMD_READ_TOC_PMA_ATIP 0x43
467 #define GPCMD_REPAIR_RZONE_TRACK 0x58
468 #define GPCMD_REPORT_KEY 0xa4
469 #define GPCMD_REQUEST_SENSE 0x03
470 #define GPCMD_RESERVE_RZONE_TRACK 0x53
471 #define GPCMD_SEND_CUE_SHEET 0x5d
472 #define GPCMD_SCAN 0xba
473 #define GPCMD_SEEK 0x2b
474 #define GPCMD_SEND_DVD_STRUCTURE 0xbf
475 #define GPCMD_SEND_EVENT 0xa2
476 #define GPCMD_SEND_KEY 0xa3
477 #define GPCMD_SEND_OPC 0x54
478 #define GPCMD_SET_READ_AHEAD 0xa7
479 #define GPCMD_SET_STREAMING 0xb6
480 #define GPCMD_START_STOP_UNIT 0x1b
481 #define GPCMD_STOP_PLAY_SCAN 0x4e
482 #define GPCMD_TEST_UNIT_READY 0x00
483 #define GPCMD_VERIFY_10 0x2f
484 #define GPCMD_WRITE_10 0x2a
485 #define GPCMD_WRITE_12 0xaa
486 #define GPCMD_WRITE_AND_VERIFY_10 0x2e
487 #define GPCMD_WRITE_BUFFER 0x3b
488 /* This is listed as optional in ATAPI 2.6, but is (curiously)
489  * missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji
490  * Table 377 as an MMC command for SCSi devices though... Most ATAPI
491  * drives support it. */
492 #define GPCMD_SET_SPEED 0xbb
493 /* This seems to be a SCSI specific CD-ROM opcode
494  * to play data at track/index */
495 #define GPCMD_PLAYAUDIO_TI 0x48
496 /*
497  * From MS Media Status Notification Support Specification. For
498  * older drives only.
499  */
500 #define GPCMD_GET_MEDIA_STATUS 0xda
501 
502 /* Mode page codes for mode sense/set */
503 #define GPMODE_VENDOR_PAGE 0x00
504 #define GPMODE_R_W_ERROR_PAGE 0x01
505 #define GPMODE_WRITE_PARMS_PAGE 0x05
506 #define GPMODE_WCACHING_PAGE 0x08
507 #define GPMODE_AUDIO_CTL_PAGE 0x0e
508 #define GPMODE_POWER_PAGE 0x1a
509 #define GPMODE_FAULT_FAIL_PAGE 0x1c
510 #define GPMODE_TO_PROTECT_PAGE 0x1d
511 #define GPMODE_CAPABILITIES_PAGE 0x2a
512 #define GPMODE_ALL_PAGES 0x3f
513 /* Not in Mt. Fuji, but in ATAPI 2.6 -- deprecated now in favor
514  * of MODE_SENSE_POWER_PAGE */
515 #define GPMODE_CDROM_PAGE 0x0d
516 
517 
518 
519 /* DVD struct types */
520 #define DVD_STRUCT_PHYSICAL 0x00
521 #define DVD_STRUCT_COPYRIGHT 0x01
522 #define DVD_STRUCT_DISCKEY 0x02
523 #define DVD_STRUCT_BCA 0x03
524 #define DVD_STRUCT_MANUFACT 0x04
525 
526 struct dvd_layer {
527  __u8 book_version : 4;
528  __u8 book_type : 4;
529  __u8 min_rate : 4;
530  __u8 disc_size : 4;
531  __u8 layer_type : 4;
532  __u8 track_path : 1;
533  __u8 nlayers : 2;
534  __u8 track_density : 4;
535  __u8 linear_density : 4;
536  __u8 bca : 1;
537  __u32 start_sector;
538  __u32 end_sector;
539  __u32 end_sector_l0;
540 };
541 
542 #define DVD_LAYERS 4
543 
544 struct dvd_physical {
545  __u8 type;
546  __u8 layer_num;
547  struct dvd_layer layer[DVD_LAYERS];
548 };
549 
550 struct dvd_copyright {
551  __u8 type;
552 
553  __u8 layer_num;
554  __u8 cpst;
555  __u8 rmi;
556 };
557 
558 struct dvd_disckey {
559  __u8 type;
560 
561  unsigned agid : 2;
562  __u8 value[2048];
563 };
564 
565 struct dvd_bca {
566  __u8 type;
567 
568  int len;
569  __u8 value[188];
570 };
571 
572 struct dvd_manufact {
573  __u8 type;
574 
575  __u8 layer_num;
576  int len;
577  __u8 value[2048];
578 };
579 
580 typedef union {
581  __u8 type;
582 
583  struct dvd_physical physical;
584  struct dvd_copyright copyright;
585  struct dvd_disckey disckey;
586  struct dvd_bca bca;
587  struct dvd_manufact manufact;
588 } dvd_struct;
589 
590 /*
591  * DVD authentication ioctl
592  */
593 
594 /* Authentication states */
595 #define DVD_LU_SEND_AGID 0
596 #define DVD_HOST_SEND_CHALLENGE 1
597 #define DVD_LU_SEND_KEY1 2
598 #define DVD_LU_SEND_CHALLENGE 3
599 #define DVD_HOST_SEND_KEY2 4
600 
601 /* Termination states */
602 #define DVD_AUTH_ESTABLISHED 5
603 #define DVD_AUTH_FAILURE 6
604 
605 /* Other functions */
606 #define DVD_LU_SEND_TITLE_KEY 7
607 #define DVD_LU_SEND_ASF 8
608 #define DVD_INVALIDATE_AGID 9
609 #define DVD_LU_SEND_RPC_STATE 10
610 #define DVD_HOST_SEND_RPC_STATE 11
611 
612 /* State data */
613 typedef __u8 dvd_key[5]; /* 40-bit value, MSB is first elem. */
614 typedef __u8 dvd_challenge[10]; /* 80-bit value, MSB is first elem. */
615 
616 struct dvd_lu_send_agid {
617  __u8 type;
618  unsigned agid : 2;
619 };
620 
621 struct dvd_host_send_challenge {
622  __u8 type;
623  unsigned agid : 2;
624 
625  dvd_challenge chal;
626 };
627 
628 struct dvd_send_key {
629  __u8 type;
630  unsigned agid : 2;
631 
632  dvd_key key;
633 };
634 
635 struct dvd_lu_send_challenge {
636  __u8 type;
637  unsigned agid : 2;
638 
639  dvd_challenge chal;
640 };
641 
642 #define DVD_CPM_NO_COPYRIGHT 0
643 #define DVD_CPM_COPYRIGHTED 1
644 
645 #define DVD_CP_SEC_NONE 0
646 #define DVD_CP_SEC_EXIST 1
647 
648 #define DVD_CGMS_UNRESTRICTED 0
649 #define DVD_CGMS_SINGLE 2
650 #define DVD_CGMS_RESTRICTED 3
651 
652 struct dvd_lu_send_title_key {
653  __u8 type;
654  unsigned agid : 2;
655 
656  dvd_key title_key;
657  int lba;
658  unsigned cpm : 1;
659  unsigned cp_sec : 1;
660  unsigned cgms : 2;
661 };
662 
663 struct dvd_lu_send_asf {
664  __u8 type;
665  unsigned agid : 2;
666 
667  unsigned asf : 1;
668 };
669 
670 struct dvd_host_send_rpcstate {
671  __u8 type;
672  __u8 pdrc;
673 };
674 
675 struct dvd_lu_send_rpcstate {
676  __u8 type : 2;
677  __u8 vra : 3;
678  __u8 ucca : 3;
679  __u8 region_mask;
680  __u8 rpc_scheme;
681 };
682 
683 typedef union {
684  __u8 type;
685 
686  struct dvd_lu_send_agid lsa;
687  struct dvd_host_send_challenge hsc;
688  struct dvd_send_key lsk;
689  struct dvd_lu_send_challenge lsc;
690  struct dvd_send_key hsk;
691  struct dvd_lu_send_title_key lstk;
692  struct dvd_lu_send_asf lsasf;
693  struct dvd_host_send_rpcstate hrpcs;
694  struct dvd_lu_send_rpcstate lrpcs;
695 } dvd_authinfo;
696 
697 struct request_sense {
698 #if defined(__BIG_ENDIAN_BITFIELD)
699  __u8 valid : 1;
700  __u8 error_code : 7;
701 #elif defined(__LITTLE_ENDIAN_BITFIELD)
702  __u8 error_code : 7;
703  __u8 valid : 1;
704 #endif
705  __u8 segment_number;
706 #if defined(__BIG_ENDIAN_BITFIELD)
707  __u8 reserved1 : 2;
708  __u8 ili : 1;
709  __u8 reserved2 : 1;
710  __u8 sense_key : 4;
711 #elif defined(__LITTLE_ENDIAN_BITFIELD)
712  __u8 sense_key : 4;
713  __u8 reserved2 : 1;
714  __u8 ili : 1;
715  __u8 reserved1 : 2;
716 #endif
717  __u8 information[4];
718  __u8 add_sense_len;
719  __u8 command_info[4];
720  __u8 asc;
721  __u8 ascq;
722  __u8 fruc;
723  __u8 sks[3];
724  __u8 asb[46];
725 };
726 
727 /*
728  * feature profile
729  */
730 #define CDF_RWRT 0x0020 /* "Random Writable" */
731 #define CDF_HWDM 0x0024 /* "Hardware Defect Management" */
732 #define CDF_MRW 0x0028
733 
734 /*
735  * media status bits
736  */
737 #define CDM_MRW_NOTMRW 0
738 #define CDM_MRW_BGFORMAT_INACTIVE 1
739 #define CDM_MRW_BGFORMAT_ACTIVE 2
740 #define CDM_MRW_BGFORMAT_COMPLETE 3
741 
742 /*
743  * mrw address spaces
744  */
745 #define MRW_LBA_DMA 0
746 #define MRW_LBA_GAA 1
747 
748 /*
749  * mrw mode pages (first is deprecated) -- probed at init time and
750  * cdi->mrw_mode_page is set
751  */
752 #define MRW_MODE_PC_PRE1 0x2c
753 #define MRW_MODE_PC 0x03
754 
755 struct mrw_feature_desc {
756  __be16 feature_code;
757 #if defined(__BIG_ENDIAN_BITFIELD)
758  __u8 reserved1 : 2;
759  __u8 feature_version : 4;
760  __u8 persistent : 1;
761  __u8 curr : 1;
762 #elif defined(__LITTLE_ENDIAN_BITFIELD)
763  __u8 curr : 1;
764  __u8 persistent : 1;
765  __u8 feature_version : 4;
766  __u8 reserved1 : 2;
767 #endif
768  __u8 add_len;
769 #if defined(__BIG_ENDIAN_BITFIELD)
770  __u8 reserved2 : 7;
771  __u8 write : 1;
772 #elif defined(__LITTLE_ENDIAN_BITFIELD)
773  __u8 write : 1;
774  __u8 reserved2 : 7;
775 #endif
776  __u8 reserved3;
777  __u8 reserved4;
778  __u8 reserved5;
779 };
780 
781 /* cf. mmc4r02g.pdf 5.3.10 Random Writable Feature (0020h) pg 197 of 635 */
782 struct rwrt_feature_desc {
783  __be16 feature_code;
784 #if defined(__BIG_ENDIAN_BITFIELD)
785  __u8 reserved1 : 2;
786  __u8 feature_version : 4;
787  __u8 persistent : 1;
788  __u8 curr : 1;
789 #elif defined(__LITTLE_ENDIAN_BITFIELD)
790  __u8 curr : 1;
791  __u8 persistent : 1;
792  __u8 feature_version : 4;
793  __u8 reserved1 : 2;
794 #endif
795  __u8 add_len;
796  __u32 last_lba;
797  __u32 block_size;
798  __u16 blocking;
799 #if defined(__BIG_ENDIAN_BITFIELD)
800  __u8 reserved2 : 7;
801  __u8 page_present : 1;
802 #elif defined(__LITTLE_ENDIAN_BITFIELD)
803  __u8 page_present : 1;
804  __u8 reserved2 : 7;
805 #endif
806  __u8 reserved3;
807 };
808 
809 typedef struct {
810  __be16 disc_information_length;
811 #if defined(__BIG_ENDIAN_BITFIELD)
812  __u8 reserved1 : 3;
813  __u8 erasable : 1;
814  __u8 border_status : 2;
815  __u8 disc_status : 2;
816 #elif defined(__LITTLE_ENDIAN_BITFIELD)
817  __u8 disc_status : 2;
818  __u8 border_status : 2;
819  __u8 erasable : 1;
820  __u8 reserved1 : 3;
821 #else
822 #error "Please fix <asm/byteorder.h>"
823 #endif
824  __u8 n_first_track;
825  __u8 n_sessions_lsb;
826  __u8 first_track_lsb;
827  __u8 last_track_lsb;
828 #if defined(__BIG_ENDIAN_BITFIELD)
829  __u8 did_v : 1;
830  __u8 dbc_v : 1;
831  __u8 uru : 1;
832  __u8 reserved2 : 2;
833  __u8 dbit : 1;
834  __u8 mrw_status : 2;
835 #elif defined(__LITTLE_ENDIAN_BITFIELD)
836  __u8 mrw_status : 2;
837  __u8 dbit : 1;
838  __u8 reserved2 : 2;
839  __u8 uru : 1;
840  __u8 dbc_v : 1;
841  __u8 did_v : 1;
842 #endif
843  __u8 disc_type;
844  __u8 n_sessions_msb;
845  __u8 first_track_msb;
846  __u8 last_track_msb;
847  __u32 disc_id;
848  __u32 lead_in;
849  __u32 lead_out;
850  __u8 disc_bar_code[8];
851  __u8 reserved3;
852  __u8 n_opc;
853 } disc_information;
854 
855 typedef struct {
856  __be16 track_information_length;
857  __u8 track_lsb;
858  __u8 session_lsb;
859  __u8 reserved1;
860 #if defined(__BIG_ENDIAN_BITFIELD)
861  __u8 reserved2 : 2;
862  __u8 damage : 1;
863  __u8 copy : 1;
864  __u8 track_mode : 4;
865  __u8 rt : 1;
866  __u8 blank : 1;
867  __u8 packet : 1;
868  __u8 fp : 1;
869  __u8 data_mode : 4;
870  __u8 reserved3 : 6;
871  __u8 lra_v : 1;
872  __u8 nwa_v : 1;
873 #elif defined(__LITTLE_ENDIAN_BITFIELD)
874  __u8 track_mode : 4;
875  __u8 copy : 1;
876  __u8 damage : 1;
877  __u8 reserved2 : 2;
878  __u8 data_mode : 4;
879  __u8 fp : 1;
880  __u8 packet : 1;
881  __u8 blank : 1;
882  __u8 rt : 1;
883  __u8 nwa_v : 1;
884  __u8 lra_v : 1;
885  __u8 reserved3 : 6;
886 #endif
887  __be32 track_start;
888  __be32 next_writable;
889  __be32 free_blocks;
890  __be32 fixed_packet_size;
891  __be32 track_size;
892  __be32 last_rec_address;
893 } track_information;
894 
895 struct feature_header {
896  __u32 data_len;
897  __u8 reserved1;
898  __u8 reserved2;
899  __u16 curr_profile;
900 };
901 
902 struct mode_page_header {
903  __be16 mode_data_length;
904  __u8 medium_type;
905  __u8 reserved1;
906  __u8 reserved2;
907  __u8 reserved3;
908  __be16 desc_length;
909 };
910 
911 
912 #endif /* _UAPI_LINUX_CDROM_H */
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