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It is my hope to provide Linux with * a uniform interface between software accessing CD-ROMs and the various * device drivers that actually talk to the drives. There may still be * 23 different kinds of strange CD-ROM drives, but at least there will * now be one, and only one, Linux CD-ROM interface. * * Additionally, as of Linux 2.1.x, all Linux application programs * should use the O_NONBLOCK option when opening a CD-ROM device * for subsequent ioctl commands. This allows for neat system errors * like "No medium found" or "Wrong medium type" upon attempting to * mount or play an empty slot, mount an audio disc, or play a data disc. * Generally, changing an application program to support O_NONBLOCK * is as easy as the following: * - drive = open("/dev/cdrom", O_RDONLY); * + drive = open("/dev/cdrom", O_RDONLY | O_NONBLOCK); * It is worth the small change. * * Patches for many common CD programs (provided by David A. van Leeuwen) * can be found at: ftp://ftp.gwdg.de/pub/linux/cdrom/drivers/cm206/ * *******************************************************/ /* When a driver supports a certain function, but the cdrom drive we are * using doesn't, we will return the error EDRIVE_CANT_DO_THIS. We will * borrow the "Operation not supported" error from the network folks to * accomplish this. Maybe someday we will get a more targeted error code, * but this will do for now... */ #define EDRIVE_CANT_DO_THIS EOPNOTSUPP /******************************************************* * The CD-ROM IOCTL commands -- these should be supported by * all the various cdrom drivers. For the CD-ROM ioctls, we * will commandeer byte 0x53, or 'S'. *******************************************************/ #define CDROMPAUSE 0x5301 /* Pause Audio Operation */ #define CDROMRESUME 0x5302 /* Resume paused Audio Operation */ #define CDROMPLAYMSF 0x5303 /* Play Audio MSF (struct cdrom_msf) */ #define CDROMPLAYTRKIND 0x5304 /* Play Audio Track/index (struct cdrom_ti) */ #define CDROMREADTOCHDR 0x5305 /* Read TOC header (struct cdrom_tochdr) */ #define CDROMREADTOCENTRY 0x5306 /* Read TOC entry (struct cdrom_tocentry) */ #define CDROMSTOP 0x5307 /* Stop the cdrom drive */ #define CDROMSTART 0x5308 /* Start the cdrom drive */ #define CDROMEJECT 0x5309 /* Ejects the cdrom media */ #define CDROMVOLCTRL 0x530a /* Control output volume (struct cdrom_volctrl) */ #define CDROMSUBCHNL 0x530b /* Read subchannel data (struct cdrom_subchnl) */ #define CDROMREADMODE2 0x530c /* Read CDROM mode 2 data (2336 Bytes) (struct cdrom_read) */ #define CDROMREADMODE1 0x530d /* Read CDROM mode 1 data (2048 Bytes) (struct cdrom_read) */ #define CDROMREADAUDIO 0x530e /* (struct cdrom_read_audio) */ #define CDROMEJECT_SW 0x530f /* enable(1)/disable(0) auto-ejecting */ #define CDROMMULTISESSION 0x5310 /* Obtain the start-of-last-session address of multi session disks (struct cdrom_multisession) */ #define CDROM_GET_MCN 0x5311 /* Obtain the "Universal Product Code" if available (struct cdrom_mcn) */ #define CDROM_GET_UPC CDROM_GET_MCN /* This one is deprecated, but here anyway for compatibility */ #define CDROMRESET 0x5312 /* hard-reset the drive */ #define CDROMVOLREAD 0x5313 /* Get the drive's volume setting (struct cdrom_volctrl) */ #define CDROMREADRAW 0x5314 /* read data in raw mode (2352 Bytes) (struct cdrom_read) */ /* * These ioctls are used only used in aztcd.c and optcd.c */ #define CDROMREADCOOKED 0x5315 /* read data in cooked mode */ #define CDROMSEEK 0x5316 /* seek msf address */ /* * This ioctl is only used by the scsi-cd driver. It is for playing audio in logical block addressing mode. */ #define CDROMPLAYBLK 0x5317 /* (struct cdrom_blk) */ /* * These ioctls are only used in optcd.c */ #define CDROMREADALL 0x5318 /* read all 2646 bytes */ /* * These ioctls are (now) only in ide-cd.c for controlling * drive spindown time. They should be implemented in the * Uniform driver, via generic packet commands, GPCMD_MODE_SELECT_10, * GPCMD_MODE_SENSE_10 and the GPMODE_POWER_PAGE... * -Erik */ #define CDROMGETSPINDOWN 0x531d #define CDROMSETSPINDOWN 0x531e /* * These ioctls are implemented through the uniform CD-ROM driver * They _will_ be adopted by all CD-ROM drivers, when all the CD-ROM * drivers are eventually ported to the uniform CD-ROM driver interface. */ #define CDROMCLOSETRAY 0x5319 /* pendant of CDROMEJECT */ #define CDROM_SET_OPTIONS 0x5320 /* Set behavior options */ #define CDROM_CLEAR_OPTIONS 0x5321 /* Clear behavior options */ #define CDROM_SELECT_SPEED 0x5322 /* Set the CD-ROM speed */ #define CDROM_SELECT_DISC 0x5323 /* Select disc (for juke-boxes) */ #define CDROM_MEDIA_CHANGED 0x5325 /* Check is media changed */ #define CDROM_DRIVE_STATUS 0x5326 /* Get tray position, etc. */ #define CDROM_DISC_STATUS 0x5327 /* Get disc type, etc. */ #define CDROM_CHANGER_NSLOTS 0x5328 /* Get number of slots */ #define CDROM_LOCKDOOR 0x5329 /* lock or unlock door */ #define CDROM_DEBUG 0x5330 /* Turn debug messages on/off */ #define CDROM_GET_CAPABILITY 0x5331 /* get capabilities */ /* Note that scsi/scsi_ioctl.h also uses 0x5382 - 0x5386. * Future CDROM ioctls should be kept below 0x537F */ /* This ioctl is only used by sbpcd at the moment */ #define CDROMAUDIOBUFSIZ 0x5382 /* set the audio buffer size */ /* conflict with SCSI_IOCTL_GET_IDLUN */ /* DVD-ROM Specific ioctls */ #define DVD_READ_STRUCT 0x5390 /* Read structure */ #define DVD_WRITE_STRUCT 0x5391 /* Write structure */ #define DVD_AUTH 0x5392 /* Authentication */ #define CDROM_SEND_PACKET 0x5393 /* send a packet to the drive */ #define CDROM_NEXT_WRITABLE 0x5394 /* get next writable block */ #define CDROM_LAST_WRITTEN 0x5395 /* get last block written on disc */ /******************************************************* * CDROM IOCTL structures *******************************************************/ /* Address in MSF format */ struct cdrom_msf0 { __u8 minute; __u8 second; __u8 frame; }; /* Address in either MSF or logical format */ union cdrom_addr { struct cdrom_msf0 msf; int lba; }; /* This struct is used by the CDROMPLAYMSF ioctl */ struct cdrom_msf { __u8 cdmsf_min0; /* start minute */ __u8 cdmsf_sec0; /* start second */ __u8 cdmsf_frame0; /* start frame */ __u8 cdmsf_min1; /* end minute */ __u8 cdmsf_sec1; /* end second */ __u8 cdmsf_frame1; /* end frame */ }; /* This struct is used by the CDROMPLAYTRKIND ioctl */ struct cdrom_ti { __u8 cdti_trk0; /* start track */ __u8 cdti_ind0; /* start index */ __u8 cdti_trk1; /* end track */ __u8 cdti_ind1; /* end index */ }; /* This struct is used by the CDROMREADTOCHDR ioctl */ struct cdrom_tochdr { __u8 cdth_trk0; /* start track */ __u8 cdth_trk1; /* end track */ }; /* This struct is used by the CDROMVOLCTRL and CDROMVOLREAD ioctls */ struct cdrom_volctrl { __u8 channel0; __u8 channel1; __u8 channel2; __u8 channel3; }; /* This struct is used by the CDROMSUBCHNL ioctl */ struct cdrom_subchnl { __u8 cdsc_format; __u8 cdsc_audiostatus; __u8 cdsc_adr: 4; __u8 cdsc_ctrl: 4; __u8 cdsc_trk; __u8 cdsc_ind; union cdrom_addr cdsc_absaddr; union cdrom_addr cdsc_reladdr; }; /* This struct is used by the CDROMREADTOCENTRY ioctl */ struct cdrom_tocentry { __u8 cdte_track; __u8 cdte_adr :4; __u8 cdte_ctrl :4; __u8 cdte_format; union cdrom_addr cdte_addr; __u8 cdte_datamode; }; /* This struct is used by the CDROMREADMODE1, and CDROMREADMODE2 ioctls */ struct cdrom_read { int cdread_lba; char *cdread_bufaddr; int cdread_buflen; }; /* This struct is used by the CDROMREADAUDIO ioctl */ struct cdrom_read_audio { union cdrom_addr addr; /* frame address */ __u8 addr_format; /* CDROM_LBA or CDROM_MSF */ int nframes; /* number of 2352-byte-frames to read at once */ __u8 *buf; /* frame buffer (size: nframes*2352 bytes) */ }; /* This struct is used with the CDROMMULTISESSION ioctl */ struct cdrom_multisession { union cdrom_addr addr; /* frame address: start-of-last-session (not the new "frame 16"!). Only valid if the "xa_flag" is true. */ __u8 xa_flag; /* 1: "is XA disk" */ __u8 addr_format; /* CDROM_LBA or CDROM_MSF */ }; /* This struct is used with the CDROM_GET_MCN ioctl. * Very few audio discs actually have Universal Product Code information, * which should just be the Medium Catalog Number on the box. Also note * that the way the codeis written on CD is _not_ uniform across all discs! */ struct cdrom_mcn { __u8 medium_catalog_number[14]; /* 13 ASCII digits, null-terminated */ }; /* This is used by the CDROMPLAYBLK ioctl */ struct cdrom_blk { unsigned from; unsigned short len; }; #define CDROM_PACKET_SIZE 12 #define CGC_DATA_UNKNOWN 0 #define CGC_DATA_WRITE 1 #define CGC_DATA_READ 2 #define CGC_DATA_NONE 3 /* for CDROM_PACKET_COMMAND ioctl */ struct cdrom_generic_command { unsigned char cmd[CDROM_PACKET_SIZE]; unsigned char *buffer; unsigned int buflen; int stat; struct request_sense *sense; unsigned char data_direction; int quiet; int timeout; void *reserved[1]; /* unused, actually */ }; /* * A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336, * 2340, or 2352 bytes long. * Sector types of the standard CD-ROM data formats: * * format sector type user data size (bytes) * ----------------------------------------------------------------------------- * 1 (Red Book) CD-DA 2352 (CD_FRAMESIZE_RAW) * 2 (Yellow Book) Mode1 Form1 2048 (CD_FRAMESIZE) * 3 (Yellow Book) Mode1 Form2 2336 (CD_FRAMESIZE_RAW0) * 4 (Green Book) Mode2 Form1 2048 (CD_FRAMESIZE) * 5 (Green Book) Mode2 Form2 2328 (2324+4 spare bytes) * * * The layout of the standard CD-ROM data formats: * ----------------------------------------------------------------------------- * - audio (red): | audio_sample_bytes | * | 2352 | * * - data (yellow, mode1): | sync - head - data - EDC - zero - ECC | * | 12 - 4 - 2048 - 4 - 8 - 276 | * * - data (yellow, mode2): | sync - head - data | * | 12 - 4 - 2336 | * * - XA data (green, mode2 form1): | sync - head - sub - data - EDC - ECC | * | 12 - 4 - 8 - 2048 - 4 - 276 | * * - XA data (green, mode2 form2): | sync - head - sub - data - Spare | * | 12 - 4 - 8 - 2324 - 4 | * */ /* Some generally useful CD-ROM information -- mostly based on the above */ #define CD_MINS 74 /* max. minutes per CD, not really a limit */ #define CD_SECS 60 /* seconds per minute */ #define CD_FRAMES 75 /* frames per second */ #define CD_SYNC_SIZE 12 /* 12 sync bytes per raw data frame */ #define CD_MSF_OFFSET 150 /* MSF numbering offset of first frame */ #define CD_CHUNK_SIZE 24 /* lowest-level "data bytes piece" */ #define CD_NUM_OF_CHUNKS 98 /* chunks per frame */ #define CD_FRAMESIZE_SUB 96 /* subchannel data "frame" size */ #define CD_HEAD_SIZE 4 /* header (address) bytes per raw data frame */ #define CD_SUBHEAD_SIZE 8 /* subheader bytes per raw XA data frame */ #define CD_EDC_SIZE 4 /* bytes EDC per most raw data frame types */ #define CD_ZERO_SIZE 8 /* bytes zero per yellow book mode 1 frame */ #define CD_ECC_SIZE 276 /* bytes ECC per most raw data frame types */ #define CD_FRAMESIZE 2048 /* bytes per frame, "cooked" mode */ #define CD_FRAMESIZE_RAW 2352 /* bytes per frame, "raw" mode */ #define CD_FRAMESIZE_RAWER 2646 /* The maximum possible returned bytes */ /* most drives don't deliver everything: */ #define CD_FRAMESIZE_RAW1 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE) /*2340*/ #define CD_FRAMESIZE_RAW0 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE-CD_HEAD_SIZE) /*2336*/ #define CD_XA_HEAD (CD_HEAD_SIZE+CD_SUBHEAD_SIZE) /* "before data" part of raw XA frame */ #define CD_XA_TAIL (CD_EDC_SIZE+CD_ECC_SIZE) /* "after data" part of raw XA frame */ #define CD_XA_SYNC_HEAD (CD_SYNC_SIZE+CD_XA_HEAD) /* sync bytes + header of XA frame */ /* CD-ROM address types (cdrom_tocentry.cdte_format) */ #define CDROM_LBA 0x01 /* "logical block": first frame is #0 */ #define CDROM_MSF 0x02 /* "minute-second-frame": binary, not bcd here! */ /* bit to tell whether track is data or audio (cdrom_tocentry.cdte_ctrl) */ #define CDROM_DATA_TRACK 0x04 /* The leadout track is always 0xAA, regardless of # of tracks on disc */ #define CDROM_LEADOUT 0xAA /* audio states (from SCSI-2, but seen with other drives, too) */ #define CDROM_AUDIO_INVALID 0x00 /* audio status not supported */ #define CDROM_AUDIO_PLAY 0x11 /* audio play operation in progress */ #define CDROM_AUDIO_PAUSED 0x12 /* audio play operation paused */ #define CDROM_AUDIO_COMPLETED 0x13 /* audio play successfully completed */ #define CDROM_AUDIO_ERROR 0x14 /* audio play stopped due to error */ #define CDROM_AUDIO_NO_STATUS 0x15 /* no current audio status to return */ /* capability flags used with the uniform CD-ROM driver */ #define CDC_CLOSE_TRAY 0x1 /* caddy systems _can't_ close */ #define CDC_OPEN_TRAY 0x2 /* but _can_ eject. */ #define CDC_LOCK 0x4 /* disable manual eject */ #define CDC_SELECT_SPEED 0x8 /* programmable speed */ #define CDC_SELECT_DISC 0x10 /* select disc from juke-box */ #define CDC_MULTI_SESSION 0x20 /* read sessions>1 */ #define CDC_MCN 0x40 /* Medium Catalog Number */ #define CDC_MEDIA_CHANGED 0x80 /* media changed */ #define CDC_PLAY_AUDIO 0x100 /* audio functions */ #define CDC_RESET 0x200 /* hard reset device */ #define CDC_DRIVE_STATUS 0x800 /* driver implements drive status */ #define CDC_GENERIC_PACKET 0x1000 /* driver implements generic packets */ #define CDC_CD_R 0x2000 /* drive is a CD-R */ #define CDC_CD_RW 0x4000 /* drive is a CD-RW */ #define CDC_DVD 0x8000 /* drive is a DVD */ #define CDC_DVD_R 0x10000 /* drive can write DVD-R */ #define CDC_DVD_RAM 0x20000 /* drive can write DVD-RAM */ #define CDC_MO_DRIVE 0x40000 /* drive is an MO device */ #define CDC_MRW 0x80000 /* drive can read MRW */ #define CDC_MRW_W 0x100000 /* drive can write MRW */ #define CDC_RAM 0x200000 /* ok to open for WRITE */ /* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */ #define CDS_NO_INFO 0 /* if not implemented */ #define CDS_NO_DISC 1 #define CDS_TRAY_OPEN 2 #define CDS_DRIVE_NOT_READY 3 #define CDS_DISC_OK 4 /* return values for the CDROM_DISC_STATUS ioctl */ /* can also return CDS_NO_[INFO|DISC], from above */ #define CDS_AUDIO 100 #define CDS_DATA_1 101 #define CDS_DATA_2 102 #define CDS_XA_2_1 103 #define CDS_XA_2_2 104 #define CDS_MIXED 105 /* User-configurable behavior options for the uniform CD-ROM driver */ #define CDO_AUTO_CLOSE 0x1 /* close tray on first open() */ #define CDO_AUTO_EJECT 0x2 /* open tray on last release() */ #define CDO_USE_FFLAGS 0x4 /* use O_NONBLOCK information on open */ #define CDO_LOCK 0x8 /* lock tray on open files */ #define CDO_CHECK_TYPE 0x10 /* check type on open for data */ /* Special codes used when specifying changer slots. */ #define CDSL_NONE (INT_MAX-1) #define CDSL_CURRENT INT_MAX /* For partition based multisession access. IDE can handle 64 partitions * per drive - SCSI CD-ROM's use minors to differentiate between the * various drives, so we can't do multisessions the same way there. * Use the -o session=x option to mount on them. */ #define CD_PART_MAX 64 #define CD_PART_MASK (CD_PART_MAX - 1) /********************************************************************* * Generic Packet commands, MMC commands, and such *********************************************************************/ /* The generic packet command opcodes for CD/DVD Logical Units, * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */ #define GPCMD_BLANK 0xa1 #define GPCMD_CLOSE_TRACK 0x5b #define GPCMD_FLUSH_CACHE 0x35 #define GPCMD_FORMAT_UNIT 0x04 #define GPCMD_GET_CONFIGURATION 0x46 #define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a #define GPCMD_GET_PERFORMANCE 0xac #define GPCMD_INQUIRY 0x12 #define GPCMD_LOAD_UNLOAD 0xa6 #define GPCMD_MECHANISM_STATUS 0xbd #define GPCMD_MODE_SELECT_10 0x55 #define GPCMD_MODE_SENSE_10 0x5a #define GPCMD_PAUSE_RESUME 0x4b #define GPCMD_PLAY_AUDIO_10 0x45 #define GPCMD_PLAY_AUDIO_MSF 0x47 #define GPCMD_PLAY_AUDIO_TI 0x48 #define GPCMD_PLAY_CD 0xbc #define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL 0x1e #define GPCMD_READ_10 0x28 #define GPCMD_READ_12 0xa8 #define GPCMD_READ_BUFFER 0x3c #define GPCMD_READ_BUFFER_CAPACITY 0x5c #define GPCMD_READ_CDVD_CAPACITY 0x25 #define GPCMD_READ_CD 0xbe #define GPCMD_READ_CD_MSF 0xb9 #define GPCMD_READ_DISC_INFO 0x51 #define GPCMD_READ_DVD_STRUCTURE 0xad #define GPCMD_READ_FORMAT_CAPACITIES 0x23 #define GPCMD_READ_HEADER 0x44 #define GPCMD_READ_TRACK_RZONE_INFO 0x52 #define GPCMD_READ_SUBCHANNEL 0x42 #define GPCMD_READ_TOC_PMA_ATIP 0x43 #define GPCMD_REPAIR_RZONE_TRACK 0x58 #define GPCMD_REPORT_KEY 0xa4 #define GPCMD_REQUEST_SENSE 0x03 #define GPCMD_RESERVE_RZONE_TRACK 0x53 #define GPCMD_SEND_CUE_SHEET 0x5d #define GPCMD_SCAN 0xba #define GPCMD_SEEK 0x2b #define GPCMD_SEND_DVD_STRUCTURE 0xbf #define GPCMD_SEND_EVENT 0xa2 #define GPCMD_SEND_KEY 0xa3 #define GPCMD_SEND_OPC 0x54 #define GPCMD_SET_READ_AHEAD 0xa7 #define GPCMD_SET_STREAMING 0xb6 #define GPCMD_START_STOP_UNIT 0x1b #define GPCMD_STOP_PLAY_SCAN 0x4e #define GPCMD_TEST_UNIT_READY 0x00 #define GPCMD_VERIFY_10 0x2f #define GPCMD_WRITE_10 0x2a #define GPCMD_WRITE_12 0xaa #define GPCMD_WRITE_AND_VERIFY_10 0x2e #define GPCMD_WRITE_BUFFER 0x3b /* This is listed as optional in ATAPI 2.6, but is (curiously) * missing from Mt. Fuji, Table 57. It _is_ mentioned in Mt. Fuji * Table 377 as an MMC command for SCSi devices though... Most ATAPI * drives support it. */ #define GPCMD_SET_SPEED 0xbb /* This seems to be a SCSI specific CD-ROM opcode * to play data at track/index */ #define GPCMD_PLAYAUDIO_TI 0x48 /* * From MS Media Status Notification Support Specification. For * older drives only. */ #define GPCMD_GET_MEDIA_STATUS 0xda /* Mode page codes for mode sense/set */ #define GPMODE_VENDOR_PAGE 0x00 #define GPMODE_R_W_ERROR_PAGE 0x01 #define GPMODE_WRITE_PARMS_PAGE 0x05 #define GPMODE_WCACHING_PAGE 0x08 #define GPMODE_AUDIO_CTL_PAGE 0x0e #define GPMODE_POWER_PAGE 0x1a #define GPMODE_FAULT_FAIL_PAGE 0x1c #define GPMODE_TO_PROTECT_PAGE 0x1d #define GPMODE_CAPABILITIES_PAGE 0x2a #define GPMODE_ALL_PAGES 0x3f /* Not in Mt. Fuji, but in ATAPI 2.6 -- deprecated now in favor * of MODE_SENSE_POWER_PAGE */ #define GPMODE_CDROM_PAGE 0x0d /* DVD struct types */ #define DVD_STRUCT_PHYSICAL 0x00 #define DVD_STRUCT_COPYRIGHT 0x01 #define DVD_STRUCT_DISCKEY 0x02 #define DVD_STRUCT_BCA 0x03 #define DVD_STRUCT_MANUFACT 0x04 struct dvd_layer { __u8 book_version : 4; __u8 book_type : 4; __u8 min_rate : 4; __u8 disc_size : 4; __u8 layer_type : 4; __u8 track_path : 1; __u8 nlayers : 2; __u8 track_density : 4; __u8 linear_density : 4; __u8 bca : 1; __u32 start_sector; __u32 end_sector; __u32 end_sector_l0; }; #define DVD_LAYERS 4 struct dvd_physical { __u8 type; __u8 layer_num; struct dvd_layer layer[DVD_LAYERS]; }; struct dvd_copyright { __u8 type; __u8 layer_num; __u8 cpst; __u8 rmi; }; struct dvd_disckey { __u8 type; unsigned agid : 2; __u8 value[2048]; }; struct dvd_bca { __u8 type; int len; __u8 value[188]; }; struct dvd_manufact { __u8 type; __u8 layer_num; int len; __u8 value[2048]; }; typedef union { __u8 type; struct dvd_physical physical; struct dvd_copyright copyright; struct dvd_disckey disckey; struct dvd_bca bca; struct dvd_manufact manufact; } dvd_struct; /* * DVD authentication ioctl */ /* Authentication states */ #define DVD_LU_SEND_AGID 0 #define DVD_HOST_SEND_CHALLENGE 1 #define DVD_LU_SEND_KEY1 2 #define DVD_LU_SEND_CHALLENGE 3 #define DVD_HOST_SEND_KEY2 4 /* Termination states */ #define DVD_AUTH_ESTABLISHED 5 #define DVD_AUTH_FAILURE 6 /* Other functions */ #define DVD_LU_SEND_TITLE_KEY 7 #define DVD_LU_SEND_ASF 8 #define DVD_INVALIDATE_AGID 9 #define DVD_LU_SEND_RPC_STATE 10 #define DVD_HOST_SEND_RPC_STATE 11 /* State data */ typedef __u8 dvd_key[5]; /* 40-bit value, MSB is first elem. */ typedef __u8 dvd_challenge[10]; /* 80-bit value, MSB is first elem. */ struct dvd_lu_send_agid { __u8 type; unsigned agid : 2; }; struct dvd_host_send_challenge { __u8 type; unsigned agid : 2; dvd_challenge chal; }; struct dvd_send_key { __u8 type; unsigned agid : 2; dvd_key key; }; struct dvd_lu_send_challenge { __u8 type; unsigned agid : 2; dvd_challenge chal; }; #define DVD_CPM_NO_COPYRIGHT 0 #define DVD_CPM_COPYRIGHTED 1 #define DVD_CP_SEC_NONE 0 #define DVD_CP_SEC_EXIST 1 #define DVD_CGMS_UNRESTRICTED 0 #define DVD_CGMS_SINGLE 2 #define DVD_CGMS_RESTRICTED 3 struct dvd_lu_send_title_key { __u8 type; unsigned agid : 2; dvd_key title_key; int lba; unsigned cpm : 1; unsigned cp_sec : 1; unsigned cgms : 2; }; struct dvd_lu_send_asf { __u8 type; unsigned agid : 2; unsigned asf : 1; }; struct dvd_host_send_rpcstate { __u8 type; __u8 pdrc; }; struct dvd_lu_send_rpcstate { __u8 type : 2; __u8 vra : 3; __u8 ucca : 3; __u8 region_mask; __u8 rpc_scheme; }; typedef union { __u8 type; struct dvd_lu_send_agid lsa; struct dvd_host_send_challenge hsc; struct dvd_send_key lsk; struct dvd_lu_send_challenge lsc; struct dvd_send_key hsk; struct dvd_lu_send_title_key lstk; struct dvd_lu_send_asf lsasf; struct dvd_host_send_rpcstate hrpcs; struct dvd_lu_send_rpcstate lrpcs; } dvd_authinfo; struct request_sense { #if defined(__BIG_ENDIAN_BITFIELD) __u8 valid : 1; __u8 error_code : 7; #elif defined(__LITTLE_ENDIAN_BITFIELD) __u8 error_code : 7; __u8 valid : 1; #endif __u8 segment_number; #if defined(__BIG_ENDIAN_BITFIELD) __u8 reserved1 : 2; __u8 ili : 1; __u8 reserved2 : 1; __u8 sense_key : 4; #elif defined(__LITTLE_ENDIAN_BITFIELD) __u8 sense_key : 4; __u8 reserved2 : 1; __u8 ili : 1; __u8 reserved1 : 2; #endif __u8 information[4]; __u8 add_sense_len; __u8 command_info[4]; __u8 asc; __u8 ascq; __u8 fruc; __u8 sks[3]; __u8 asb[46]; }; /* * feature profile */ #define CDF_RWRT 0x0020 /* "Random Writable" */ #define CDF_HWDM 0x0024 /* "Hardware Defect Management" */ #define CDF_MRW 0x0028 /* * media status bits */ #define CDM_MRW_NOTMRW 0 #define CDM_MRW_BGFORMAT_INACTIVE 1 #define CDM_MRW_BGFORMAT_ACTIVE 2 #define CDM_MRW_BGFORMAT_COMPLETE 3 /* * mrw address spaces */ #define MRW_LBA_DMA 0 #define MRW_LBA_GAA 1 /* * mrw mode pages (first is deprecated) -- probed at init time and * cdi->mrw_mode_page is set */ #define MRW_MODE_PC_PRE1 0x2c #define MRW_MODE_PC 0x03 struct mrw_feature_desc { __be16 feature_code; #if defined(__BIG_ENDIAN_BITFIELD) __u8 reserved1 : 2; __u8 feature_version : 4; __u8 persistent : 1; __u8 curr : 1; #elif defined(__LITTLE_ENDIAN_BITFIELD) __u8 curr : 1; __u8 persistent : 1; __u8 feature_version : 4; __u8 reserved1 : 2; #endif __u8 add_len; #if defined(__BIG_ENDIAN_BITFIELD) __u8 reserved2 : 7; __u8 write : 1; #elif defined(__LITTLE_ENDIAN_BITFIELD) __u8 write : 1; __u8 reserved2 : 7; #endif __u8 reserved3; __u8 reserved4; __u8 reserved5; }; /* cf. mmc4r02g.pdf 5.3.10 Random Writable Feature (0020h) pg 197 of 635 */ struct rwrt_feature_desc { __be16 feature_code; #if defined(__BIG_ENDIAN_BITFIELD) __u8 reserved1 : 2; __u8 feature_version : 4; __u8 persistent : 1; __u8 curr : 1; #elif defined(__LITTLE_ENDIAN_BITFIELD) __u8 curr : 1; __u8 persistent : 1; __u8 feature_version : 4; __u8 reserved1 : 2; #endif __u8 add_len; __u32 last_lba; __u32 block_size; __u16 blocking; #if defined(__BIG_ENDIAN_BITFIELD) __u8 reserved2 : 7; __u8 page_present : 1; #elif defined(__LITTLE_ENDIAN_BITFIELD) __u8 page_present : 1; __u8 reserved2 : 7; #endif __u8 reserved3; }; typedef struct { __be16 disc_information_length; #if defined(__BIG_ENDIAN_BITFIELD) __u8 reserved1 : 3; __u8 erasable : 1; __u8 border_status : 2; __u8 disc_status : 2; #elif defined(__LITTLE_ENDIAN_BITFIELD) __u8 disc_status : 2; __u8 border_status : 2; __u8 erasable : 1; __u8 reserved1 : 3; #else #error "Please fix " #endif __u8 n_first_track; __u8 n_sessions_lsb; __u8 first_track_lsb; __u8 last_track_lsb; #if defined(__BIG_ENDIAN_BITFIELD) __u8 did_v : 1; __u8 dbc_v : 1; __u8 uru : 1; __u8 reserved2 : 2; __u8 dbit : 1; __u8 mrw_status : 2; #elif defined(__LITTLE_ENDIAN_BITFIELD) __u8 mrw_status : 2; __u8 dbit : 1; __u8 reserved2 : 2; __u8 uru : 1; __u8 dbc_v : 1; __u8 did_v : 1; #endif __u8 disc_type; __u8 n_sessions_msb; __u8 first_track_msb; __u8 last_track_msb; __u32 disc_id; __u32 lead_in; __u32 lead_out; __u8 disc_bar_code[8]; __u8 reserved3; __u8 n_opc; } disc_information; typedef struct { __be16 track_information_length; __u8 track_lsb; __u8 session_lsb; __u8 reserved1; #if defined(__BIG_ENDIAN_BITFIELD) __u8 reserved2 : 2; __u8 damage : 1; __u8 copy : 1; __u8 track_mode : 4; __u8 rt : 1; __u8 blank : 1; __u8 packet : 1; __u8 fp : 1; __u8 data_mode : 4; __u8 reserved3 : 6; __u8 lra_v : 1; __u8 nwa_v : 1; #elif defined(__LITTLE_ENDIAN_BITFIELD) __u8 track_mode : 4; __u8 copy : 1; __u8 damage : 1; __u8 reserved2 : 2; __u8 data_mode : 4; __u8 fp : 1; __u8 packet : 1; __u8 blank : 1; __u8 rt : 1; __u8 nwa_v : 1; __u8 lra_v : 1; __u8 reserved3 : 6; #endif __be32 track_start; __be32 next_writable; __be32 free_blocks; __be32 fixed_packet_size; __be32 track_size; __be32 last_rec_address; } track_information; struct feature_header { __u32 data_len; __u8 reserved1; __u8 reserved2; __u16 curr_profile; }; struct mode_page_header { __be16 mode_data_length; __u8 medium_type; __u8 reserved1; __u8 reserved2; __u8 reserved3; __be16 desc_length; }; /* removable medium feature descriptor */ struct rm_feature_desc { __be16 feature_code; #if defined(__BIG_ENDIAN_BITFIELD) __u8 reserved1:2; __u8 feature_version:4; __u8 persistent:1; __u8 curr:1; #elif defined(__LITTLE_ENDIAN_BITFIELD) __u8 curr:1; __u8 persistent:1; __u8 feature_version:4; __u8 reserved1:2; #endif __u8 add_len; #if defined(__BIG_ENDIAN_BITFIELD) __u8 mech_type:3; __u8 load:1; __u8 eject:1; __u8 pvnt_jmpr:1; __u8 dbml:1; __u8 lock:1; #elif defined(__LITTLE_ENDIAN_BITFIELD) __u8 lock:1; __u8 dbml:1; __u8 pvnt_jmpr:1; __u8 eject:1; __u8 load:1; __u8 mech_type:3; #endif __u8 reserved2; __u8 reserved3; __u8 reserved4; }; #endif /* _LINUX_CDROM_H */