1 /* 2 * -- <linux/cdrom.h> 3 * General header file for linux CD-ROM drivers 4 * Copyright (C) 1992 David Giller, rafetmad (at) oxy.edu 5 * 1994, 1995 Eberhard Moenkeberg, emoenke (at) gwdg.de 6 * 1996 David van Leeuwen, david (at) tm.tno.nl 7 * 1997, 1998 Erik Andersen, andersee (at) debian.org 8 * 1998-2002 Jens Axboe, axboe (at) 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 compatibility */ 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 __user *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 __user *buffer; 284 unsigned int buflen; 285 int stat; 286 struct request_sense __user *sense; 287 unsigned char data_direction; 288 int quiet; 289 int timeout; 290 void __user *reserved[1]; /* unused, actually */ 291 }; 292 293 /* 294 * A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336, 295 * 2340, or 2352 bytes long. 296 297 * Sector types of the standard CD-ROM data formats: 298 * 299 * format sector type user data size (bytes) 300 * ----------------------------------------------------------------------------- 301 * 1 (Red Book) CD-DA 2352 (CD_FRAMESIZE_RAW) 302 * 2 (Yellow Book) Mode1 Form1 2048 (CD_FRAMESIZE) 303 * 3 (Yellow Book) Mode1 Form2 2336 (CD_FRAMESIZE_RAW0) 304 * 4 (Green Book) Mode2 Form1 2048 (CD_FRAMESIZE) 305 * 5 (Green Book) Mode2 Form2 2328 (2324+4 spare bytes) 306 * 307 * 308 * The layout of the standard CD-ROM data formats: 309 * ----------------------------------------------------------------------------- 310 * - audio (red): | audio_sample_bytes | 311 * | 2352 | 312 * 313 * - data (yellow, mode1): | sync - head - data - EDC - zero - ECC | 314 * | 12 - 4 - 2048 - 4 - 8 - 276 | 315 * 316 * - data (yellow, mode2): | sync - head - data | 317 * | 12 - 4 - 2336 | 318 * 319 * - XA data (green, mode2 form1): | sync - head - sub - data - EDC - ECC | 320 * | 12 - 4 - 8 - 2048 - 4 - 276 | 321 * 322 * - XA data (green, mode2 form2): | sync - head - sub - data - Spare | 323 * | 12 - 4 - 8 - 2324 - 4 | 324 * 325 */ 326 327 /* Some generally useful CD-ROM information -- mostly based on the above */ 328 #define CD_MINS 74 /* max. minutes per CD, not really a limit */ 329 #define CD_SECS 60 /* seconds per minute */ 330 #define CD_FRAMES 75 /* frames per second */ 331 #define CD_SYNC_SIZE 12 /* 12 sync bytes per raw data frame */ 332 #define CD_MSF_OFFSET 150 /* MSF numbering offset of first frame */ 333 #define CD_CHUNK_SIZE 24 /* lowest-level "data bytes piece" */ 334 #define CD_NUM_OF_CHUNKS 98 /* chunks per frame */ 335 #define CD_FRAMESIZE_SUB 96 /* subchannel data "frame" size */ 336 #define CD_HEAD_SIZE 4 /* header (address) bytes per raw data frame */ 337 #define CD_SUBHEAD_SIZE 8 /* subheader bytes per raw XA data frame */ 338 #define CD_EDC_SIZE 4 /* bytes EDC per most raw data frame types */ 339 #define CD_ZERO_SIZE 8 /* bytes zero per yellow book mode 1 frame */ 340 #define CD_ECC_SIZE 276 /* bytes ECC per most raw data frame types */ 341 #define CD_FRAMESIZE 2048 /* bytes per frame, "cooked" mode */ 342 #define CD_FRAMESIZE_RAW 2352 /* bytes per frame, "raw" mode */ 343 #define CD_FRAMESIZE_RAWER 2646 /* The maximum possible returned bytes */ 344 /* most drives don't deliver everything: */ 345 #define CD_FRAMESIZE_RAW1 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE) /*2340*/ 346 #define CD_FRAMESIZE_RAW0 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE-CD_HEAD_SIZE) /*2336*/ 347 348 #define CD_XA_HEAD (CD_HEAD_SIZE+CD_SUBHEAD_SIZE) /* "before data" part of raw XA frame */ 349 #define CD_XA_TAIL (CD_EDC_SIZE+CD_ECC_SIZE) /* "after data" part of raw XA frame */ 350 #define CD_XA_SYNC_HEAD (CD_SYNC_SIZE+CD_XA_HEAD) /* sync bytes + header of XA frame */ 351 352 /* CD-ROM address types (cdrom_tocentry.cdte_format) */ 353 #define CDROM_LBA 0x01 /* "logical block": first frame is #0 */ 354 #define CDROM_MSF 0x02 /* "minute-second-frame": binary, not bcd here! */ 355 356 /* bit to tell whether track is data or audio (cdrom_tocentry.cdte_ctrl) */ 357 #define CDROM_DATA_TRACK 0x04 358 359 /* The leadout track is always 0xAA, regardless of # of tracks on disc */ 360 #define CDROM_LEADOUT 0xAA 361 362 /* audio states (from SCSI-2, but seen with other drives, too) */ 363 #define CDROM_AUDIO_INVALID 0x00 /* audio status not supported */ 364 #define CDROM_AUDIO_PLAY 0x11 /* audio play operation in progress */ 365 #define CDROM_AUDIO_PAUSED 0x12 /* audio play operation paused */ 366 #define CDROM_AUDIO_COMPLETED 0x13 /* audio play successfully completed */ 367 #define CDROM_AUDIO_ERROR 0x14 /* audio play stopped due to error */ 368 #define CDROM_AUDIO_NO_STATUS 0x15 /* no current audio status to return */ 369 370 /* capability flags used with the uniform CD-ROM driver */ 371 #define CDC_CLOSE_TRAY 0x1 /* caddy systems _can't_ close */ 372 #define CDC_OPEN_TRAY 0x2 /* but _can_ eject. */ 373 #define CDC_LOCK 0x4 /* disable manual eject */ 374 #define CDC_SELECT_SPEED 0x8 /* programmable speed */ 375 #define CDC_SELECT_DISC 0x10 /* select disc from juke-box */ 376 #define CDC_MULTI_SESSION 0x20 /* read sessions>1 */ 377 #define CDC_MCN 0x40 /* Medium Catalog Number */ 378 #define CDC_MEDIA_CHANGED 0x80 /* media changed */ 379 #define CDC_PLAY_AUDIO 0x100 /* audio functions */ 380 #define CDC_RESET 0x200 /* hard reset device */ 381 #define CDC_DRIVE_STATUS 0x800 /* driver implements drive status */ 382 #define CDC_GENERIC_PACKET 0x1000 /* driver implements generic packets */ 383 #define CDC_CD_R 0x2000 /* drive is a CD-R */ 384 #define CDC_CD_RW 0x4000 /* drive is a CD-RW */ 385 #define CDC_DVD 0x8000 /* drive is a DVD */ 386 #define CDC_DVD_R 0x10000 /* drive can write DVD-R */ 387 #define CDC_DVD_RAM 0x20000 /* drive can write DVD-RAM */ 388 #define CDC_MO_DRIVE 0x40000 /* drive is an MO device */ 389 #define CDC_MRW 0x80000 /* drive can read MRW */ 390 #define CDC_MRW_W 0x100000 /* drive can write MRW */ 391 #define CDC_RAM 0x200000 /* ok to open for WRITE */ 392 393 /* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */ 394 #define CDS_NO_INFO 0 /* if not implemented */ 395 #define CDS_NO_DISC 1 396 #define CDS_TRAY_OPEN 2 397 #define CDS_DRIVE_NOT_READY 3 398 #define CDS_DISC_OK 4 399 400 /* return values for the CDROM_DISC_STATUS ioctl */ 401 /* can also return CDS_NO_[INFO|DISC], from above */ 402 #define CDS_AUDIO 100 403 #define CDS_DATA_1 101 404 #define CDS_DATA_2 102 405 #define CDS_XA_2_1 103 406 #define CDS_XA_2_2 104 407 #define CDS_MIXED 105 408 409 /* User-configurable behavior options for the uniform CD-ROM driver */ 410 #define CDO_AUTO_CLOSE 0x1 /* close tray on first open() */ 411 #define CDO_AUTO_EJECT 0x2 /* open tray on last release() */ 412 #define CDO_USE_FFLAGS 0x4 /* use O_NONBLOCK information on open */ 413 #define CDO_LOCK 0x8 /* lock tray on open files */ 414 #define CDO_CHECK_TYPE 0x10 /* check type on open for data */ 415 416 /* Special codes used when specifying changer slots. */ 417 #define CDSL_NONE ((int) (~0U>>1)-1) 418 #define CDSL_CURRENT ((int) (~0U>>1)) 419 420 /* For partition based multisession access. IDE can handle 64 partitions 421 * per drive - SCSI CD-ROM's use minors to differentiate between the 422 * various drives, so we can't do multisessions the same way there. 423 * Use the -o session=x option to mount on them. 424 */ 425 #define CD_PART_MAX 64 426 #define CD_PART_MASK (CD_PART_MAX - 1) 427 428 /********************************************************************* 429 * Generic Packet commands, MMC commands, and such 430 *********************************************************************/ 431 432 /* The generic packet command opcodes for CD/DVD Logical Units, 433 * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */ 434 #define GPCMD_BLANK 0xa1 435 #define GPCMD_CLOSE_TRACK 0x5b 436 #define GPCMD_FLUSH_CACHE 0x35 437 #define GPCMD_FORMAT_UNIT 0x04 438 #define GPCMD_GET_CONFIGURATION 0x46 439 #define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a 440 #define GPCMD_GET_PERFORMANCE 0xac 441 #define GPCMD_INQUIRY 0x12 442 #define GPCMD_LOAD_UNLOAD 0xa6 443 #define GPCMD_MECHANISM_STATUS 0xbd 444 #define GPCMD_MODE_SELECT_10 0x55 445 #define GPCMD_MODE_SENSE_10 0x5a 446 #define GPCMD_PAUSE_RESUME 0x4b 447 #define GPCMD_PLAY_AUDIO_10 0x45 448 #define GPCMD_PLAY_AUDIO_MSF 0x47 449 #define GPCMD_PLAY_AUDIO_TI 0x48 450 #define GPCMD_PLAY_CD 0xbc 451 #define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e 452 #define GPCMD_READ_10 0x28 453 #define GPCMD_READ_12 0xa8 454 #define GPCMD_READ_BUFFER_CAPACITY 0x5c 455 #define GPCMD_READ_CDVD_CAPACITY 0x25 456 #define GPCMD_READ_CD 0xbe 457 #define GPCMD_READ_CD_MSF 0xb9 458 #define GPCMD_READ_DISC_INFO 0x51 459 #define GPCMD_READ_DVD_STRUCTURE 0xad 460 #define GPCMD_READ_FORMAT_CAPACITIES 0x23 461 #define GPCMD_READ_HEADER 0x44 462 #define GPCMD_READ_TRACK_RZONE_INFO 0x52 463 #define GPCMD_READ_SUBCHANNEL 0x42 464 #define GPCMD_READ_TOC_PMA_ATIP 0x43 465 #define GPCMD_REPAIR_RZONE_TRACK 0x58 466 #define GPCMD_REPORT_KEY 0xa4 467 #define GPCMD_REQUEST_SENSE 0x03 468 #define GPCMD_RESERVE_RZONE_TRACK 0x53 469 #define GPCMD_SEND_CUE_SHEET 0x5d 470 #define GPCMD_SCAN 0xba 471 #define GPCMD_SEEK 0x2b 472 #define GPCMD_SEND_DVD_STRUCTURE 0xbf 473 #define GPCMD_SEND_EVENT 0xa2 474 #define GPCMD_SEND_KEY 0xa3 475 #define GPCMD_SEND_OPC 0x54 476 #define GPCMD_SET_READ_AHEAD 0xa7 477 #define GPCMD_SET_STREAMING 0xb6 478 #define GPCMD_START_STOP_UNIT 0x1b 479 #define GPCMD_STOP_PLAY_SCAN 0x4e 480 #define GPCMD_TEST_UNIT_READY 0x00 481 #define GPCMD_VERIFY_10 0x2f 482 #define GPCMD_WRITE_10 0x2a 483 #define GPCMD_WRITE_AND_VERIFY_10 0x2e 484 /* This is listed as optional in ATAPI 2.6, but is (curiously) 485 * missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji 486 * Table 377 as an MMC command for SCSi devices though... Most ATAPI 487 * drives support it. */ 488 #define GPCMD_SET_SPEED 0xbb 489 /* This seems to be a SCSI specific CD-ROM opcode 490 * to play data at track/index */ 491 #define GPCMD_PLAYAUDIO_TI 0x48 492 /* 493 * From MS Media Status Notification Support Specification. For 494 * older drives only. 495 */ 496 #define GPCMD_GET_MEDIA_STATUS 0xda 497 498 /* Mode page codes for mode sense/set */ 499 #define GPMODE_VENDOR_PAGE 0x00 500 #define GPMODE_R_W_ERROR_PAGE 0x01 501 #define GPMODE_WRITE_PARMS_PAGE 0x05 502 #define GPMODE_WCACHING_PAGE 0x08 503 #define GPMODE_AUDIO_CTL_PAGE 0x0e 504 #define GPMODE_POWER_PAGE 0x1a 505 #define GPMODE_FAULT_FAIL_PAGE 0x1c 506 #define GPMODE_TO_PROTECT_PAGE 0x1d 507 #define GPMODE_CAPABILITIES_PAGE 0x2a 508 #define GPMODE_ALL_PAGES 0x3f 509 /* Not in Mt. Fuji, but in ATAPI 2.6 -- depricated now in favor 510 * of MODE_SENSE_POWER_PAGE */ 511 #define GPMODE_CDROM_PAGE 0x0d 512 513 514 515 /* DVD struct types */ 516 #define DVD_STRUCT_PHYSICAL 0x00 517 #define DVD_STRUCT_COPYRIGHT 0x01 518 #define DVD_STRUCT_DISCKEY 0x02 519 #define DVD_STRUCT_BCA 0x03 520 #define DVD_STRUCT_MANUFACT 0x04 521 522 struct dvd_layer { 523 __u8 book_version : 4; 524 __u8 book_type : 4; 525 __u8 min_rate : 4; 526 __u8 disc_size : 4; 527 __u8 layer_type : 4; 528 __u8 track_path : 1; 529 __u8 nlayers : 2; 530 __u8 track_density : 4; 531 __u8 linear_density : 4; 532 __u8 bca : 1; 533 __u32 start_sector; 534 __u32 end_sector; 535 __u32 end_sector_l0; 536 }; 537 538 #define DVD_LAYERS 4 539 540 struct dvd_physical { 541 __u8 type; 542 __u8 layer_num; 543 struct dvd_layer layer[DVD_LAYERS]; 544 }; 545 546 struct dvd_copyright { 547 __u8 type; 548 549 __u8 layer_num; 550 __u8 cpst; 551 __u8 rmi; 552 }; 553 554 struct dvd_disckey { 555 __u8 type; 556 557 unsigned agid : 2; 558 __u8 value[2048]; 559 }; 560 561 struct dvd_bca { 562 __u8 type; 563 564 int len; 565 __u8 value[188]; 566 }; 567 568 struct dvd_manufact { 569 __u8 type; 570 571 __u8 layer_num; 572 int len; 573 __u8 value[2048]; 574 }; 575 576 typedef union { 577 __u8 type; 578 579 struct dvd_physical physical; 580 struct dvd_copyright copyright; 581 struct dvd_disckey disckey; 582 struct dvd_bca bca; 583 struct dvd_manufact manufact; 584 } dvd_struct; 585 586 /* 587 * DVD authentication ioctl 588 */ 589 590 /* Authentication states */ 591 #define DVD_LU_SEND_AGID 0 592 #define DVD_HOST_SEND_CHALLENGE 1 593 #define DVD_LU_SEND_KEY1 2 594 #define DVD_LU_SEND_CHALLENGE 3 595 #define DVD_HOST_SEND_KEY2 4 596 597 /* Termination states */ 598 #define DVD_AUTH_ESTABLISHED 5 599 #define DVD_AUTH_FAILURE 6 600 601 /* Other functions */ 602 #define DVD_LU_SEND_TITLE_KEY 7 603 #define DVD_LU_SEND_ASF 8 604 #define DVD_INVALIDATE_AGID 9 605 #define DVD_LU_SEND_RPC_STATE 10 606 #define DVD_HOST_SEND_RPC_STATE 11 607 608 /* State data */ 609 typedef __u8 dvd_key[5]; /* 40-bit value, MSB is first elem. */ 610 typedef __u8 dvd_challenge[10]; /* 80-bit value, MSB is first elem. */ 611 612 struct dvd_lu_send_agid { 613 __u8 type; 614 unsigned agid : 2; 615 }; 616 617 struct dvd_host_send_challenge { 618 __u8 type; 619 unsigned agid : 2; 620 621 dvd_challenge chal; 622 }; 623 624 struct dvd_send_key { 625 __u8 type; 626 unsigned agid : 2; 627 628 dvd_key key; 629 }; 630 631 struct dvd_lu_send_challenge { 632 __u8 type; 633 unsigned agid : 2; 634 635 dvd_challenge chal; 636 }; 637 638 #define DVD_CPM_NO_COPYRIGHT 0 639 #define DVD_CPM_COPYRIGHTED 1 640 641 #define DVD_CP_SEC_NONE 0 642 #define DVD_CP_SEC_EXIST 1 643 644 #define DVD_CGMS_UNRESTRICTED 0 645 #define DVD_CGMS_SINGLE 2 646 #define DVD_CGMS_RESTRICTED 3 647 648 struct dvd_lu_send_title_key { 649 __u8 type; 650 unsigned agid : 2; 651 652 dvd_key title_key; 653 int lba; 654 unsigned cpm : 1; 655 unsigned cp_sec : 1; 656 unsigned cgms : 2; 657 }; 658 659 struct dvd_lu_send_asf { 660 __u8 type; 661 unsigned agid : 2; 662 663 unsigned asf : 1; 664 }; 665 666 struct dvd_host_send_rpcstate { 667 __u8 type; 668 __u8 pdrc; 669 }; 670 671 struct dvd_lu_send_rpcstate { 672 __u8 type : 2; 673 __u8 vra : 3; 674 __u8 ucca : 3; 675 __u8 region_mask; 676 __u8 rpc_scheme; 677 }; 678 679 typedef union { 680 __u8 type; 681 682 struct dvd_lu_send_agid lsa; 683 struct dvd_host_send_challenge hsc; 684 struct dvd_send_key lsk; 685 struct dvd_lu_send_challenge lsc; 686 struct dvd_send_key hsk; 687 struct dvd_lu_send_title_key lstk; 688 struct dvd_lu_send_asf lsasf; 689 struct dvd_host_send_rpcstate hrpcs; 690 struct dvd_lu_send_rpcstate lrpcs; 691 } dvd_authinfo; 692 693 struct request_sense { 694 #if defined(__BIG_ENDIAN_BITFIELD) 695 __u8 valid : 1; 696 __u8 error_code : 7; 697 #elif defined(__LITTLE_ENDIAN_BITFIELD) 698 __u8 error_code : 7; 699 __u8 valid : 1; 700 #endif 701 __u8 segment_number; 702 #if defined(__BIG_ENDIAN_BITFIELD) 703 __u8 reserved1 : 2; 704 __u8 ili : 1; 705 __u8 reserved2 : 1; 706 __u8 sense_key : 4; 707 #elif defined(__LITTLE_ENDIAN_BITFIELD) 708 __u8 sense_key : 4; 709 __u8 reserved2 : 1; 710 __u8 ili : 1; 711 __u8 reserved1 : 2; 712 #endif 713 __u8 information[4]; 714 __u8 add_sense_len; 715 __u8 command_info[4]; 716 __u8 asc; 717 __u8 ascq; 718 __u8 fruc; 719 __u8 sks[3]; 720 __u8 asb[46]; 721 }; 722 723 /* 724 * feature profile 725 */ 726 #define CDF_RWRT 0x0020 /* "Random Writable" */ 727 #define CDF_HWDM 0x0024 /* "Hardware Defect Management" */ 728 #define CDF_MRW 0x0028 729 730 /* 731 * media status bits 732 */ 733 #define CDM_MRW_NOTMRW 0 734 #define CDM_MRW_BGFORMAT_INACTIVE 1 735 #define CDM_MRW_BGFORMAT_ACTIVE 2 736 #define CDM_MRW_BGFORMAT_COMPLETE 3 737 738 /* 739 * mrw address spaces 740 */ 741 #define MRW_LBA_DMA 0 742 #define MRW_LBA_GAA 1 743 744 /* 745 * mrw mode pages (first is deprecated) -- probed at init time and 746 * cdi->mrw_mode_page is set 747 */ 748 #define MRW_MODE_PC_PRE1 0x2c 749 #define MRW_MODE_PC 0x03 750 751 struct mrw_feature_desc { 752 __u16 feature_code; 753 #if defined(__BIG_ENDIAN_BITFIELD) 754 __u8 reserved1 : 2; 755 __u8 feature_version : 4; 756 __u8 persistent : 1; 757 __u8 curr : 1; 758 #elif defined(__LITTLE_ENDIAN_BITFIELD) 759 __u8 curr : 1; 760 __u8 persistent : 1; 761 __u8 feature_version : 4; 762 __u8 reserved1 : 2; 763 #endif 764 __u8 add_len; 765 #if defined(__BIG_ENDIAN_BITFIELD) 766 __u8 reserved2 : 7; 767 __u8 write : 1; 768 #elif defined(__LITTLE_ENDIAN_BITFIELD) 769 __u8 write : 1; 770 __u8 reserved2 : 7; 771 #endif 772 __u8 reserved3; 773 __u8 reserved4; 774 __u8 reserved5; 775 }; 776 777 /* cf. mmc4r02g.pdf 5.3.10 Random Writable Feature (0020h) pg 197 of 635 */ 778 struct rwrt_feature_desc { 779 __u16 feature_code; 780 #if defined(__BIG_ENDIAN_BITFIELD) 781 __u8 reserved1 : 2; 782 __u8 feature_version : 4; 783 __u8 persistent : 1; 784 __u8 curr : 1; 785 #elif defined(__LITTLE_ENDIAN_BITFIELD) 786 __u8 curr : 1; 787 __u8 persistent : 1; 788 __u8 feature_version : 4; 789 __u8 reserved1 : 2; 790 #endif 791 __u8 add_len; 792 __u32 last_lba; 793 __u32 block_size; 794 __u16 blocking; 795 #if defined(__BIG_ENDIAN_BITFIELD) 796 __u8 reserved2 : 7; 797 __u8 page_present : 1; 798 #elif defined(__LITTLE_ENDIAN_BITFIELD) 799 __u8 page_present : 1; 800 __u8 reserved2 : 7; 801 #endif 802 __u8 reserved3; 803 }; 804 805 typedef struct { 806 __u16 disc_information_length; 807 #if defined(__BIG_ENDIAN_BITFIELD) 808 __u8 reserved1 : 3; 809 __u8 erasable : 1; 810 __u8 border_status : 2; 811 __u8 disc_status : 2; 812 #elif defined(__LITTLE_ENDIAN_BITFIELD) 813 __u8 disc_status : 2; 814 __u8 border_status : 2; 815 __u8 erasable : 1; 816 __u8 reserved1 : 3; 817 #else 818 #error "Please fix <asm/byteorder.h>" 819 #endif 820 __u8 n_first_track; 821 __u8 n_sessions_lsb; 822 __u8 first_track_lsb; 823 __u8 last_track_lsb; 824 #if defined(__BIG_ENDIAN_BITFIELD) 825 __u8 did_v : 1; 826 __u8 dbc_v : 1; 827 __u8 uru : 1; 828 __u8 reserved2 : 2; 829 __u8 dbit : 1; 830 __u8 mrw_status : 2; 831 #elif defined(__LITTLE_ENDIAN_BITFIELD) 832 __u8 mrw_status : 2; 833 __u8 dbit : 1; 834 __u8 reserved2 : 2; 835 __u8 uru : 1; 836 __u8 dbc_v : 1; 837 __u8 did_v : 1; 838 #endif 839 __u8 disc_type; 840 __u8 n_sessions_msb; 841 __u8 first_track_msb; 842 __u8 last_track_msb; 843 __u32 disc_id; 844 __u32 lead_in; 845 __u32 lead_out; 846 __u8 disc_bar_code[8]; 847 __u8 reserved3; 848 __u8 n_opc; 849 } disc_information; 850 851 typedef struct { 852 __u16 track_information_length; 853 __u8 track_lsb; 854 __u8 session_lsb; 855 __u8 reserved1; 856 #if defined(__BIG_ENDIAN_BITFIELD) 857 __u8 reserved2 : 2; 858 __u8 damage : 1; 859 __u8 copy : 1; 860 __u8 track_mode : 4; 861 __u8 rt : 1; 862 __u8 blank : 1; 863 __u8 packet : 1; 864 __u8 fp : 1; 865 __u8 data_mode : 4; 866 __u8 reserved3 : 6; 867 __u8 lra_v : 1; 868 __u8 nwa_v : 1; 869 #elif defined(__LITTLE_ENDIAN_BITFIELD) 870 __u8 track_mode : 4; 871 __u8 copy : 1; 872 __u8 damage : 1; 873 __u8 reserved2 : 2; 874 __u8 data_mode : 4; 875 __u8 fp : 1; 876 __u8 packet : 1; 877 __u8 blank : 1; 878 __u8 rt : 1; 879 __u8 nwa_v : 1; 880 __u8 lra_v : 1; 881 __u8 reserved3 : 6; 882 #endif 883 __u32 track_start; 884 __u32 next_writable; 885 __u32 free_blocks; 886 __u32 fixed_packet_size; 887 __u32 track_size; 888 __u32 last_rec_address; 889 } track_information; 890 891 struct feature_header { 892 __u32 data_len; 893 __u8 reserved1; 894 __u8 reserved2; 895 __u16 curr_profile; 896 }; 897 898 struct mode_page_header { 899 __u16 mode_data_length; 900 __u8 medium_type; 901 __u8 reserved1; 902 __u8 reserved2; 903 __u8 reserved3; 904 __u16 desc_length; 905 }; 906 907 #ifdef __KERNEL__ 908 #include <linux/fs.h> /* not really needed, later.. */ 909 #include <linux/device.h> 910 911 struct packet_command 912 { 913 unsigned char cmd[CDROM_PACKET_SIZE]; 914 unsigned char *buffer; 915 unsigned int buflen; 916 int stat; 917 struct request_sense *sense; 918 unsigned char data_direction; 919 int quiet; 920 int timeout; 921 void *reserved[1]; 922 }; 923 924 /* 925 * _OLD will use PIO transfer on atapi devices, _BPC_* will use DMA 926 */ 927 #define CDDA_OLD 0 /* old style */ 928 #define CDDA_BPC_SINGLE 1 /* single frame block pc */ 929 #define CDDA_BPC_FULL 2 /* multi frame block pc */ 930 931 /* Uniform cdrom data structures for cdrom.c */ 932 struct cdrom_device_info { 933 struct cdrom_device_ops *ops; /* link to device_ops */ 934 struct cdrom_device_info *next; /* next device_info for this major */ 935 struct gendisk *disk; /* matching block layer disk */ 936 void *handle; /* driver-dependent data */ 937 /* specifications */ 938 int mask; /* mask of capability: disables them */ 939 int speed; /* maximum speed for reading data */ 940 int capacity; /* number of discs in jukebox */ 941 /* device-related storage */ 942 int options : 30; /* options flags */ 943 unsigned mc_flags : 2; /* media change buffer flags */ 944 int use_count; /* number of times device opened */ 945 char name[20]; /* name of the device type */ 946 /* per-device flags */ 947 __u8 sanyo_slot : 2; /* Sanyo 3 CD changer support */ 948 __u8 reserved : 6; /* not used yet */ 949 int cdda_method; /* see flags */ 950 __u8 last_sense; 951 __u8 media_written; /* dirty flag, DVD+RW bookkeeping */ 952 unsigned short mmc3_profile; /* current MMC3 profile */ 953 int for_data; 954 int (*exit)(struct cdrom_device_info *); 955 int mrw_mode_page; 956 }; 957 958 struct cdrom_device_ops { 959 /* routines */ 960 int (*open) (struct cdrom_device_info *, int); 961 void (*release) (struct cdrom_device_info *); 962 int (*drive_status) (struct cdrom_device_info *, int); 963 int (*media_changed) (struct cdrom_device_info *, int); 964 int (*tray_move) (struct cdrom_device_info *, int); 965 int (*lock_door) (struct cdrom_device_info *, int); 966 int (*select_speed) (struct cdrom_device_info *, int); 967 int (*select_disc) (struct cdrom_device_info *, int); 968 int (*get_last_session) (struct cdrom_device_info *, 969 struct cdrom_multisession *); 970 int (*get_mcn) (struct cdrom_device_info *, 971 struct cdrom_mcn *); 972 /* hard reset device */ 973 int (*reset) (struct cdrom_device_info *); 974 /* play stuff */ 975 int (*audio_ioctl) (struct cdrom_device_info *,unsigned int, void *); 976 977 /* driver specifications */ 978 const int capability; /* capability flags */ 979 int n_minors; /* number of active minor devices */ 980 /* handle uniform packets for scsi type devices (scsi,atapi) */ 981 int (*generic_packet) (struct cdrom_device_info *, 982 struct packet_command *); 983 }; 984 985 /* the general block_device operations structure: */ 986 extern int cdrom_open(struct cdrom_device_info *cdi, struct inode *ip, 987 struct file *fp); 988 extern int cdrom_release(struct cdrom_device_info *cdi, struct file *fp); 989 extern int cdrom_ioctl(struct file *file, struct cdrom_device_info *cdi, 990 struct inode *ip, unsigned int cmd, unsigned long arg); 991 extern int cdrom_media_changed(struct cdrom_device_info *); 992 993 extern int register_cdrom(struct cdrom_device_info *cdi); 994 extern int unregister_cdrom(struct cdrom_device_info *cdi); 995 996 typedef struct { 997 int data; 998 int audio; 999 int cdi; 1000 int xa; 1001 long error; 1002 } tracktype; 1003 1004 extern int cdrom_get_last_written(struct cdrom_device_info *cdi, long *last_written); 1005 extern int cdrom_number_of_slots(struct cdrom_device_info *cdi); 1006 extern int cdrom_mode_select(struct cdrom_device_info *cdi, 1007 struct packet_command *cgc); 1008 extern int cdrom_mode_sense(struct cdrom_device_info *cdi, 1009 struct packet_command *cgc, 1010 int page_code, int page_control); 1011 extern void init_cdrom_command(struct packet_command *cgc, 1012 void *buffer, int len, int type); 1013 1014 /* The SCSI spec says there could be 256 slots. */ 1015 #define CDROM_MAX_SLOTS 256 1016 1017 struct cdrom_mechstat_header { 1018 #if defined(__BIG_ENDIAN_BITFIELD) 1019 __u8 fault : 1; 1020 __u8 changer_state : 2; 1021 __u8 curslot : 5; 1022 __u8 mech_state : 3; 1023 __u8 door_open : 1; 1024 __u8 reserved1 : 4; 1025 #elif defined(__LITTLE_ENDIAN_BITFIELD) 1026 __u8 curslot : 5; 1027 __u8 changer_state : 2; 1028 __u8 fault : 1; 1029 __u8 reserved1 : 4; 1030 __u8 door_open : 1; 1031 __u8 mech_state : 3; 1032 #endif 1033 __u8 curlba[3]; 1034 __u8 nslots; 1035 __u16 slot_tablelen; 1036 }; 1037 1038 struct cdrom_slot { 1039 #if defined(__BIG_ENDIAN_BITFIELD) 1040 __u8 disc_present : 1; 1041 __u8 reserved1 : 6; 1042 __u8 change : 1; 1043 #elif defined(__LITTLE_ENDIAN_BITFIELD) 1044 __u8 change : 1; 1045 __u8 reserved1 : 6; 1046 __u8 disc_present : 1; 1047 #endif 1048 __u8 reserved2[3]; 1049 }; 1050 1051 struct cdrom_changer_info { 1052 struct cdrom_mechstat_header hdr; 1053 struct cdrom_slot slots[CDROM_MAX_SLOTS]; 1054 }; 1055 1056 typedef enum { 1057 mechtype_caddy = 0, 1058 mechtype_tray = 1, 1059 mechtype_popup = 2, 1060 mechtype_individual_changer = 4, 1061 mechtype_cartridge_changer = 5 1062 } mechtype_t; 1063 1064 typedef struct { 1065 #if defined(__BIG_ENDIAN_BITFIELD) 1066 __u8 ps : 1; 1067 __u8 reserved1 : 1; 1068 __u8 page_code : 6; 1069 __u8 page_length; 1070 __u8 reserved2 : 1; 1071 __u8 bufe : 1; 1072 __u8 ls_v : 1; 1073 __u8 test_write : 1; 1074 __u8 write_type : 4; 1075 __u8 multi_session : 2; /* or border, DVD */ 1076 __u8 fp : 1; 1077 __u8 copy : 1; 1078 __u8 track_mode : 4; 1079 __u8 reserved3 : 4; 1080 __u8 data_block_type : 4; 1081 #elif defined(__LITTLE_ENDIAN_BITFIELD) 1082 __u8 page_code : 6; 1083 __u8 reserved1 : 1; 1084 __u8 ps : 1; 1085 __u8 page_length; 1086 __u8 write_type : 4; 1087 __u8 test_write : 1; 1088 __u8 ls_v : 1; 1089 __u8 bufe : 1; 1090 __u8 reserved2 : 1; 1091 __u8 track_mode : 4; 1092 __u8 copy : 1; 1093 __u8 fp : 1; 1094 __u8 multi_session : 2; /* or border, DVD */ 1095 __u8 data_block_type : 4; 1096 __u8 reserved3 : 4; 1097 #endif 1098 __u8 link_size; 1099 __u8 reserved4; 1100 #if defined(__BIG_ENDIAN_BITFIELD) 1101 __u8 reserved5 : 2; 1102 __u8 app_code : 6; 1103 #elif defined(__LITTLE_ENDIAN_BITFIELD) 1104 __u8 app_code : 6; 1105 __u8 reserved5 : 2; 1106 #endif 1107 __u8 session_format; 1108 __u8 reserved6; 1109 __u32 packet_size; 1110 __u16 audio_pause; 1111 __u8 mcn[16]; 1112 __u8 isrc[16]; 1113 __u8 subhdr0; 1114 __u8 subhdr1; 1115 __u8 subhdr2; 1116 __u8 subhdr3; 1117 } __attribute__((packed)) write_param_page; 1118 1119 struct modesel_head 1120 { 1121 __u8 reserved1; 1122 __u8 medium; 1123 __u8 reserved2; 1124 __u8 block_desc_length; 1125 __u8 density; 1126 __u8 number_of_blocks_hi; 1127 __u8 number_of_blocks_med; 1128 __u8 number_of_blocks_lo; 1129 __u8 reserved3; 1130 __u8 block_length_hi; 1131 __u8 block_length_med; 1132 __u8 block_length_lo; 1133 }; 1134 1135 typedef struct { 1136 __u16 report_key_length; 1137 __u8 reserved1; 1138 __u8 reserved2; 1139 #if defined(__BIG_ENDIAN_BITFIELD) 1140 __u8 type_code : 2; 1141 __u8 vra : 3; 1142 __u8 ucca : 3; 1143 #elif defined(__LITTLE_ENDIAN_BITFIELD) 1144 __u8 ucca : 3; 1145 __u8 vra : 3; 1146 __u8 type_code : 2; 1147 #endif 1148 __u8 region_mask; 1149 __u8 rpc_scheme; 1150 __u8 reserved3; 1151 } rpc_state_t; 1152 1153 struct event_header { 1154 __u16 data_len; 1155 #if defined(__BIG_ENDIAN_BITFIELD) 1156 __u8 nea : 1; 1157 __u8 reserved1 : 4; 1158 __u8 notification_class : 3; 1159 #elif defined(__LITTLE_ENDIAN_BITFIELD) 1160 __u8 notification_class : 3; 1161 __u8 reserved1 : 4; 1162 __u8 nea : 1; 1163 #endif 1164 __u8 supp_event_class; 1165 }; 1166 1167 struct media_event_desc { 1168 #if defined(__BIG_ENDIAN_BITFIELD) 1169 __u8 reserved1 : 4; 1170 __u8 media_event_code : 4; 1171 __u8 reserved2 : 6; 1172 __u8 media_present : 1; 1173 __u8 door_open : 1; 1174 #elif defined(__LITTLE_ENDIAN_BITFIELD) 1175 __u8 media_event_code : 4; 1176 __u8 reserved1 : 4; 1177 __u8 door_open : 1; 1178 __u8 media_present : 1; 1179 __u8 reserved2 : 6; 1180 #endif 1181 __u8 start_slot; 1182 __u8 end_slot; 1183 }; 1184 1185 extern int cdrom_get_media_event(struct cdrom_device_info *cdi, struct media_event_desc *med); 1186 1187 #endif /* End of kernel only stuff */ 1188 1189 #endif /* _LINUX_CDROM_H */ 1190
