| /* |
| * -- <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 __user *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 __user *buffer; |
| unsigned int buflen; |
| int stat; |
| struct request_sense __user *sense; |
| unsigned char data_direction; |
| int quiet; |
| int timeout; |
| void __user *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; |
| }; |
| |
| #ifdef __KERNEL__ |
| #include <linux/fs.h> /* not really needed, later.. */ |
| #include <linux/device.h> |
| #include <linux/list.h> |
| |
| struct packet_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]; |
| }; |
| |
| /* |
| * _OLD will use PIO transfer on atapi devices, _BPC_* will use DMA |
| */ |
| #define CDDA_OLD 0 /* old style */ |
| #define CDDA_BPC_SINGLE 1 /* single frame block pc */ |
| #define CDDA_BPC_FULL 2 /* multi frame block pc */ |
| |
| /* Uniform cdrom data structures for cdrom.c */ |
| struct cdrom_device_info { |
| struct cdrom_device_ops *ops; /* link to device_ops */ |
| struct list_head list; /* linked list of all device_info */ |
| struct gendisk *disk; /* matching block layer disk */ |
| void *handle; /* driver-dependent data */ |
| /* specifications */ |
| int mask; /* mask of capability: disables them */ |
| int speed; /* maximum speed for reading data */ |
| int capacity; /* number of discs in jukebox */ |
| /* device-related storage */ |
| unsigned int options : 30; /* options flags */ |
| unsigned mc_flags : 2; /* media change buffer flags */ |
| int use_count; /* number of times device opened */ |
| char name[20]; /* name of the device type */ |
| /* per-device flags */ |
| __u8 sanyo_slot : 2; /* Sanyo 3 CD changer support */ |
| __u8 reserved : 6; /* not used yet */ |
| int cdda_method; /* see flags */ |
| __u8 last_sense; |
| __u8 media_written; /* dirty flag, DVD+RW bookkeeping */ |
| unsigned short mmc3_profile; /* current MMC3 profile */ |
| int for_data; |
| int (*exit)(struct cdrom_device_info *); |
| int mrw_mode_page; |
| }; |
| |
| struct cdrom_device_ops { |
| /* routines */ |
| int (*open) (struct cdrom_device_info *, int); |
| void (*release) (struct cdrom_device_info *); |
| int (*drive_status) (struct cdrom_device_info *, int); |
| int (*media_changed) (struct cdrom_device_info *, int); |
| int (*tray_move) (struct cdrom_device_info *, int); |
| int (*lock_door) (struct cdrom_device_info *, int); |
| int (*select_speed) (struct cdrom_device_info *, int); |
| int (*select_disc) (struct cdrom_device_info *, int); |
| int (*get_last_session) (struct cdrom_device_info *, |
| struct cdrom_multisession *); |
| int (*get_mcn) (struct cdrom_device_info *, |
| struct cdrom_mcn *); |
| /* hard reset device */ |
| int (*reset) (struct cdrom_device_info *); |
| /* play stuff */ |
| int (*audio_ioctl) (struct cdrom_device_info *,unsigned int, void *); |
| |
| /* driver specifications */ |
| const int capability; /* capability flags */ |
| int n_minors; /* number of active minor devices */ |
| /* handle uniform packets for scsi type devices (scsi,atapi) */ |
| int (*generic_packet) (struct cdrom_device_info *, |
| struct packet_command *); |
| }; |
| |
| /* the general block_device operations structure: */ |
| extern int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev, |
| fmode_t mode); |
| extern void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode); |
| extern int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev, |
| fmode_t mode, unsigned int cmd, unsigned long arg); |
| extern int cdrom_media_changed(struct cdrom_device_info *); |
| |
| extern int register_cdrom(struct cdrom_device_info *cdi); |
| extern void unregister_cdrom(struct cdrom_device_info *cdi); |
| |
| typedef struct { |
| int data; |
| int audio; |
| int cdi; |
| int xa; |
| long error; |
| } tracktype; |
| |
| extern int cdrom_get_last_written(struct cdrom_device_info *cdi, long *last_written); |
| extern int cdrom_number_of_slots(struct cdrom_device_info *cdi); |
| extern int cdrom_mode_select(struct cdrom_device_info *cdi, |
| struct packet_command *cgc); |
| extern int cdrom_mode_sense(struct cdrom_device_info *cdi, |
| struct packet_command *cgc, |
| int page_code, int page_control); |
| extern void init_cdrom_command(struct packet_command *cgc, |
| void *buffer, int len, int type); |
| |
| /* The SCSI spec says there could be 256 slots. */ |
| #define CDROM_MAX_SLOTS 256 |
| |
| struct cdrom_mechstat_header { |
| #if defined(__BIG_ENDIAN_BITFIELD) |
| __u8 fault : 1; |
| __u8 changer_state : 2; |
| __u8 curslot : 5; |
| __u8 mech_state : 3; |
| __u8 door_open : 1; |
| __u8 reserved1 : 4; |
| #elif defined(__LITTLE_ENDIAN_BITFIELD) |
| __u8 curslot : 5; |
| __u8 changer_state : 2; |
| __u8 fault : 1; |
| __u8 reserved1 : 4; |
| __u8 door_open : 1; |
| __u8 mech_state : 3; |
| #endif |
| __u8 curlba[3]; |
| __u8 nslots; |
| __u16 slot_tablelen; |
| }; |
| |
| struct cdrom_slot { |
| #if defined(__BIG_ENDIAN_BITFIELD) |
| __u8 disc_present : 1; |
| __u8 reserved1 : 6; |
| __u8 change : 1; |
| #elif defined(__LITTLE_ENDIAN_BITFIELD) |
| __u8 change : 1; |
| __u8 reserved1 : 6; |
| __u8 disc_present : 1; |
| #endif |
| __u8 reserved2[3]; |
| }; |
| |
| struct cdrom_changer_info { |
| struct cdrom_mechstat_header hdr; |
| struct cdrom_slot slots[CDROM_MAX_SLOTS]; |
| }; |
| |
| typedef enum { |
| mechtype_caddy = 0, |
| mechtype_tray = 1, |
| mechtype_popup = 2, |
| mechtype_individual_changer = 4, |
| mechtype_cartridge_changer = 5 |
| } mechtype_t; |
| |
| typedef struct { |
| #if defined(__BIG_ENDIAN_BITFIELD) |
| __u8 ps : 1; |
| __u8 reserved1 : 1; |
| __u8 page_code : 6; |
| __u8 page_length; |
| __u8 reserved2 : 1; |
| __u8 bufe : 1; |
| __u8 ls_v : 1; |
| __u8 test_write : 1; |
| __u8 write_type : 4; |
| __u8 multi_session : 2; /* or border, DVD */ |
| __u8 fp : 1; |
| __u8 copy : 1; |
| __u8 track_mode : 4; |
| __u8 reserved3 : 4; |
| __u8 data_block_type : 4; |
| #elif defined(__LITTLE_ENDIAN_BITFIELD) |
| __u8 page_code : 6; |
| __u8 reserved1 : 1; |
| __u8 ps : 1; |
| __u8 page_length; |
| __u8 write_type : 4; |
| __u8 test_write : 1; |
| __u8 ls_v : 1; |
| __u8 bufe : 1; |
| __u8 reserved2 : 1; |
| __u8 track_mode : 4; |
| __u8 copy : 1; |
| __u8 fp : 1; |
| __u8 multi_session : 2; /* or border, DVD */ |
| __u8 data_block_type : 4; |
| __u8 reserved3 : 4; |
| #endif |
| __u8 link_size; |
| __u8 reserved4; |
| #if defined(__BIG_ENDIAN_BITFIELD) |
| __u8 reserved5 : 2; |
| __u8 app_code : 6; |
| #elif defined(__LITTLE_ENDIAN_BITFIELD) |
| __u8 app_code : 6; |
| __u8 reserved5 : 2; |
| #endif |
| __u8 session_format; |
| __u8 reserved6; |
| __be32 packet_size; |
| __u16 audio_pause; |
| __u8 mcn[16]; |
| __u8 isrc[16]; |
| __u8 subhdr0; |
| __u8 subhdr1; |
| __u8 subhdr2; |
| __u8 subhdr3; |
| } __attribute__((packed)) write_param_page; |
| |
| struct modesel_head |
| { |
| __u8 reserved1; |
| __u8 medium; |
| __u8 reserved2; |
| __u8 block_desc_length; |
| __u8 density; |
| __u8 number_of_blocks_hi; |
| __u8 number_of_blocks_med; |
| __u8 number_of_blocks_lo; |
| __u8 reserved3; |
| __u8 block_length_hi; |
| __u8 block_length_med; |
| __u8 block_length_lo; |
| }; |
| |
| typedef struct { |
| __u16 report_key_length; |
| __u8 reserved1; |
| __u8 reserved2; |
| #if defined(__BIG_ENDIAN_BITFIELD) |
| __u8 type_code : 2; |
| __u8 vra : 3; |
| __u8 ucca : 3; |
| #elif defined(__LITTLE_ENDIAN_BITFIELD) |
| __u8 ucca : 3; |
| __u8 vra : 3; |
| __u8 type_code : 2; |
| #endif |
| __u8 region_mask; |
| __u8 rpc_scheme; |
| __u8 reserved3; |
| } rpc_state_t; |
| |
| struct event_header { |
| __be16 data_len; |
| #if defined(__BIG_ENDIAN_BITFIELD) |
| __u8 nea : 1; |
| __u8 reserved1 : 4; |
| __u8 notification_class : 3; |
| #elif defined(__LITTLE_ENDIAN_BITFIELD) |
| __u8 notification_class : 3; |
| __u8 reserved1 : 4; |
| __u8 nea : 1; |
| #endif |
| __u8 supp_event_class; |
| }; |
| |
| struct media_event_desc { |
| #if defined(__BIG_ENDIAN_BITFIELD) |
| __u8 reserved1 : 4; |
| __u8 media_event_code : 4; |
| __u8 reserved2 : 6; |
| __u8 media_present : 1; |
| __u8 door_open : 1; |
| #elif defined(__LITTLE_ENDIAN_BITFIELD) |
| __u8 media_event_code : 4; |
| __u8 reserved1 : 4; |
| __u8 door_open : 1; |
| __u8 media_present : 1; |
| __u8 reserved2 : 6; |
| #endif |
| __u8 start_slot; |
| __u8 end_slot; |
| }; |
| |
| extern int cdrom_get_media_event(struct cdrom_device_info *cdi, struct media_event_desc *med); |
| |
| static inline void lba_to_msf(int lba, u8 *m, u8 *s, u8 *f) |
| { |
| lba += CD_MSF_OFFSET; |
| lba &= 0xffffff; /* negative lbas use only 24 bits */ |
| *m = lba / (CD_SECS * CD_FRAMES); |
| lba %= (CD_SECS * CD_FRAMES); |
| *s = lba / CD_FRAMES; |
| *f = lba % CD_FRAMES; |
| } |
| |
| static inline int msf_to_lba(u8 m, u8 s, u8 f) |
| { |
| return (((m * CD_SECS) + s) * CD_FRAMES + f) - CD_MSF_OFFSET; |
| } |
| #endif /* End of kernel only stuff */ |
| |
| #endif /* _LINUX_CDROM_H */ |
