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Edit File : cdrom.h \| Size : 28.18 KB
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note / / * -- <linux/cdrom.h> * General header file for linux CD-ROM drivers * Copyright (C) 1992 David Giller, rafetmad@oxy.edu * 1994, 1995 Eberhard Mönkeberg, emoenke@gwdg.de * 1996 David van Leeuwen, david@tm.tno.nl * 1997, 1998 Erik Andersen, andersee@debian.org * 1998-2002 Jens Axboe, axboe@suse.de / #ifndef _LINUX_CDROM_H #define _LINUX_CDROM_H #include <linux/types.h> #include <asm/byteorder.h> /****************************************************** * As of Linux 2.1.x, all Linux CD-ROM application programs will use this * (and only this) include file. 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: nframes2352 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 <asm/byteorder.h>" #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 */ Back

Edit File : cdrom.h | Size : 28.18 KB

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
 * -- <linux/cdrom.h>
 * General header file for linux CD-ROM drivers 
 * Copyright (C) 1992         David Giller, rafetmad@oxy.edu
 *               1994, 1995   Eberhard Mönkeberg, emoenke@gwdg.de
 *               1996         David van Leeuwen, david@tm.tno.nl
 *               1997, 1998   Erik Andersen, andersee@debian.org
 *               1998-2002    Jens Axboe, axboe@suse.de
 */
 
#ifndef _LINUX_CDROM_H
#define _LINUX_CDROM_H

#include <linux/types.h>
#include <asm/byteorder.h>

/*******************************************************
 * As of Linux 2.1.x, all Linux CD-ROM application programs will use this 
 * (and only this) include file.  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 <asm/byteorder.h>"
#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 */

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