Line data Source code
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 Mönkeberg, emoenke@gwdg.de
6 : * 1996 David van Leeuwen, david@tm.tno.nl
7 : * 1997, 1998 Erik Andersen, andersee@debian.org
8 : * 1998-2002 Jens Axboe, axboe@suse.de
9 : */
10 :
11 : #ifndef _LINUX_CDROM_H
12 : #define _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 1 :
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 1 :
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 1 :
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 : #ifdef __KERNEL__
912 : #include <linux/fs.h> /* not really needed, later.. */
913 : #include <linux/device.h>
914 : #include <linux/list.h>
915 :
916 : struct packet_command
917 : {
918 : unsigned char cmd[CDROM_PACKET_SIZE];
919 : unsigned char *buffer;
920 : unsigned int buflen;
921 : int stat;
922 : struct request_sense *sense;
923 : unsigned char data_direction;
924 : int quiet;
925 : int timeout;
926 : void *reserved[1];
927 : };
928 :
929 : /*
930 : * _OLD will use PIO transfer on atapi devices, _BPC_* will use DMA
931 : */
932 : #define CDDA_OLD 0 /* old style */
933 : #define CDDA_BPC_SINGLE 1 /* single frame block pc */
934 : #define CDDA_BPC_FULL 2 /* multi frame block pc */
935 :
936 : /* Uniform cdrom data structures for cdrom.c */
937 : struct cdrom_device_info {
938 : struct cdrom_device_ops *ops; /* link to device_ops */
939 : struct list_head list; /* linked list of all device_info */
940 : struct gendisk *disk; /* matching block layer disk */
941 : void *handle; /* driver-dependent data */
942 : /* specifications */
943 : int mask; /* mask of capability: disables them */
944 : int speed; /* maximum speed for reading data */
945 : int capacity; /* number of discs in jukebox */
946 : /* device-related storage */
947 : unsigned int options : 30; /* options flags */
948 : unsigned mc_flags : 2; /* media change buffer flags */
949 : int use_count; /* number of times device opened */
950 : char name[20]; /* name of the device type */
951 : /* per-device flags */
952 : __u8 sanyo_slot : 2; /* Sanyo 3 CD changer support */
953 : __u8 reserved : 6; /* not used yet */
954 : int cdda_method; /* see flags */
955 : __u8 last_sense;
956 : __u8 media_written; /* dirty flag, DVD+RW bookkeeping */
957 : unsigned short mmc3_profile; /* current MMC3 profile */
958 : int for_data;
959 : int (*exit)(struct cdrom_device_info *);
960 : int mrw_mode_page;
961 : };
962 :
963 : struct cdrom_device_ops {
964 : /* routines */
965 : int (*open) (struct cdrom_device_info *, int);
966 : void (*release) (struct cdrom_device_info *);
967 : int (*drive_status) (struct cdrom_device_info *, int);
968 : int (*media_changed) (struct cdrom_device_info *, int);
969 : int (*tray_move) (struct cdrom_device_info *, int);
970 : int (*lock_door) (struct cdrom_device_info *, int);
971 : int (*select_speed) (struct cdrom_device_info *, int);
972 : int (*select_disc) (struct cdrom_device_info *, int);
973 : int (*get_last_session) (struct cdrom_device_info *,
974 : struct cdrom_multisession *);
975 : int (*get_mcn) (struct cdrom_device_info *,
976 : struct cdrom_mcn *);
977 : /* hard reset device */
978 : int (*reset) (struct cdrom_device_info *);
979 : /* play stuff */
980 : int (*audio_ioctl) (struct cdrom_device_info *,unsigned int, void *);
981 :
982 : /* driver specifications */
983 : const int capability; /* capability flags */
984 : int n_minors; /* number of active minor devices */
985 : /* handle uniform packets for scsi type devices (scsi,atapi) */
986 : int (*generic_packet) (struct cdrom_device_info *,
987 : struct packet_command *);
988 : };
989 :
990 : /* the general block_device operations structure: */
991 : extern int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev,
992 : fmode_t mode);
993 : extern void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode);
994 : extern int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev,
995 : fmode_t mode, unsigned int cmd, unsigned long arg);
996 : extern int cdrom_media_changed(struct cdrom_device_info *);
997 :
998 : extern int register_cdrom(struct cdrom_device_info *cdi);
999 : extern void unregister_cdrom(struct cdrom_device_info *cdi);
1000 :
1001 : typedef struct {
1002 : int data;
1003 : int audio;
1004 : int cdi;
1005 : int xa;
1006 : long error;
1007 : } tracktype;
1008 :
1009 : extern int cdrom_get_last_written(struct cdrom_device_info *cdi, long *last_written);
1010 : extern int cdrom_number_of_slots(struct cdrom_device_info *cdi);
1011 : extern int cdrom_mode_select(struct cdrom_device_info *cdi,
1012 : struct packet_command *cgc);
1013 : extern int cdrom_mode_sense(struct cdrom_device_info *cdi,
1014 : struct packet_command *cgc,
1015 : int page_code, int page_control);
1016 : extern void init_cdrom_command(struct packet_command *cgc,
1017 : void *buffer, int len, int type);
1018 :
1019 : /* The SCSI spec says there could be 256 slots. */
1020 : #define CDROM_MAX_SLOTS 256
1021 :
1022 : struct cdrom_mechstat_header {
1023 : #if defined(__BIG_ENDIAN_BITFIELD)
1024 : __u8 fault : 1;
1025 : __u8 changer_state : 2;
1026 : __u8 curslot : 5;
1027 : __u8 mech_state : 3;
1028 : __u8 door_open : 1;
1029 : __u8 reserved1 : 4;
1030 : #elif defined(__LITTLE_ENDIAN_BITFIELD)
1031 : __u8 curslot : 5;
1032 : __u8 changer_state : 2;
1033 : __u8 fault : 1;
1034 : __u8 reserved1 : 4;
1035 : __u8 door_open : 1;
1036 : __u8 mech_state : 3;
1037 : #endif
1038 : __u8 curlba[3];
1039 : __u8 nslots;
1040 : __u16 slot_tablelen;
1041 : };
1042 :
1043 : struct cdrom_slot {
1044 : #if defined(__BIG_ENDIAN_BITFIELD)
1045 : __u8 disc_present : 1;
1046 : __u8 reserved1 : 6;
1047 : __u8 change : 1;
1048 : #elif defined(__LITTLE_ENDIAN_BITFIELD)
1049 : __u8 change : 1;
1050 : __u8 reserved1 : 6;
1051 : __u8 disc_present : 1;
1052 : #endif
1053 : __u8 reserved2[3];
1054 : };
1055 :
1056 : struct cdrom_changer_info {
1057 : struct cdrom_mechstat_header hdr;
1058 : struct cdrom_slot slots[CDROM_MAX_SLOTS];
1059 : };
1060 :
1061 : typedef enum {
1062 : mechtype_caddy = 0,
1063 : mechtype_tray = 1,
1064 : mechtype_popup = 2,
1065 : mechtype_individual_changer = 4,
1066 : mechtype_cartridge_changer = 5
1067 : } mechtype_t;
1068 :
1069 : typedef struct {
1070 : #if defined(__BIG_ENDIAN_BITFIELD)
1071 : __u8 ps : 1;
1072 : __u8 reserved1 : 1;
1073 : __u8 page_code : 6;
1074 : __u8 page_length;
1075 : __u8 reserved2 : 1;
1076 : __u8 bufe : 1;
1077 : __u8 ls_v : 1;
1078 : __u8 test_write : 1;
1079 : __u8 write_type : 4;
1080 : __u8 multi_session : 2; /* or border, DVD */
1081 : __u8 fp : 1;
1082 : __u8 copy : 1;
1083 : __u8 track_mode : 4;
1084 : __u8 reserved3 : 4;
1085 : __u8 data_block_type : 4;
1086 : #elif defined(__LITTLE_ENDIAN_BITFIELD)
1087 : __u8 page_code : 6;
1088 : __u8 reserved1 : 1;
1089 : __u8 ps : 1;
1090 : __u8 page_length;
1091 : __u8 write_type : 4;
1092 : __u8 test_write : 1;
1093 : __u8 ls_v : 1;
1094 : __u8 bufe : 1;
1095 : __u8 reserved2 : 1;
1096 : __u8 track_mode : 4;
1097 : __u8 copy : 1;
1098 : __u8 fp : 1;
1099 : __u8 multi_session : 2; /* or border, DVD */
1100 : __u8 data_block_type : 4;
1101 : __u8 reserved3 : 4;
1102 : #endif
1103 : __u8 link_size;
1104 : __u8 reserved4;
1105 : #if defined(__BIG_ENDIAN_BITFIELD)
1106 : __u8 reserved5 : 2;
1107 : __u8 app_code : 6;
1108 : #elif defined(__LITTLE_ENDIAN_BITFIELD)
1109 : __u8 app_code : 6;
1110 : __u8 reserved5 : 2;
1111 : #endif
1112 : __u8 session_format;
1113 : __u8 reserved6;
1114 : __be32 packet_size;
1115 : __u16 audio_pause;
1116 : __u8 mcn[16];
1117 : __u8 isrc[16];
1118 : __u8 subhdr0;
1119 : __u8 subhdr1;
1120 : __u8 subhdr2;
1121 : __u8 subhdr3;
1122 : } __attribute__((packed)) write_param_page;
1123 :
1124 : struct modesel_head
1125 : {
1126 : __u8 reserved1;
1127 : __u8 medium;
1128 : __u8 reserved2;
1129 : __u8 block_desc_length;
1130 : __u8 density;
1131 : __u8 number_of_blocks_hi;
1132 : __u8 number_of_blocks_med;
1133 : __u8 number_of_blocks_lo;
1134 : __u8 reserved3;
1135 : __u8 block_length_hi;
1136 : __u8 block_length_med;
1137 : __u8 block_length_lo;
1138 : };
1139 :
1140 : typedef struct {
1141 : __u16 report_key_length;
1142 : __u8 reserved1;
1143 : __u8 reserved2;
1144 : #if defined(__BIG_ENDIAN_BITFIELD)
1145 : __u8 type_code : 2;
1146 : __u8 vra : 3;
1147 : __u8 ucca : 3;
1148 : #elif defined(__LITTLE_ENDIAN_BITFIELD)
1149 : __u8 ucca : 3;
1150 : __u8 vra : 3;
1151 : __u8 type_code : 2;
1152 : #endif
1153 : __u8 region_mask;
1154 : __u8 rpc_scheme;
1155 : __u8 reserved3;
1156 : } rpc_state_t;
1157 :
1158 : struct event_header {
1159 : __be16 data_len;
1160 : #if defined(__BIG_ENDIAN_BITFIELD)
1161 : __u8 nea : 1;
1162 : __u8 reserved1 : 4;
1163 : __u8 notification_class : 3;
1164 : #elif defined(__LITTLE_ENDIAN_BITFIELD)
1165 : __u8 notification_class : 3;
1166 : __u8 reserved1 : 4;
1167 : __u8 nea : 1;
1168 : #endif
1169 : __u8 supp_event_class;
1170 : };
1171 :
1172 : struct media_event_desc {
1173 : #if defined(__BIG_ENDIAN_BITFIELD)
1174 : __u8 reserved1 : 4;
1175 : __u8 media_event_code : 4;
1176 : __u8 reserved2 : 6;
1177 : __u8 media_present : 1;
1178 : __u8 door_open : 1;
1179 : #elif defined(__LITTLE_ENDIAN_BITFIELD)
1180 : __u8 media_event_code : 4;
1181 : __u8 reserved1 : 4;
1182 : __u8 door_open : 1;
1183 : __u8 media_present : 1;
1184 : __u8 reserved2 : 6;
1185 : #endif
1186 : __u8 start_slot;
1187 : __u8 end_slot;
1188 : };
1189 :
1190 : extern int cdrom_get_media_event(struct cdrom_device_info *cdi, struct media_event_desc *med);
1191 :
1192 : static inline void lba_to_msf(int lba, u8 *m, u8 *s, u8 *f)
1193 : {
1194 : lba += CD_MSF_OFFSET;
1195 : lba &= 0xffffff; /* negative lbas use only 24 bits */
1196 : *m = lba / (CD_SECS * CD_FRAMES);
1197 : lba %= (CD_SECS * CD_FRAMES);
1198 : *s = lba / CD_FRAMES;
1199 : *f = lba % CD_FRAMES;
1200 : }
1201 :
1202 : static inline int msf_to_lba(u8 m, u8 s, u8 f)
1203 : {
1204 : return (((m * CD_SECS) + s) * CD_FRAMES + f) - CD_MSF_OFFSET;
1205 : }
1206 1 : #endif /* End of kernel only stuff */
1207 :
1208 : #endif /* _LINUX_CDROM_H */
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