LCOV - code coverage report
Current view: top level - lkbce/include/linux - cdrom.h (source / functions) Hit Total Coverage
Test: coverage.info Lines: 4 4 100.0 %
Date: 2017-01-25 Functions: 0 0 -

          Line data    Source code
       1             : /*
       2             :  * -- <linux/cdrom.h>
       3             :  * General header file for linux CD-ROM drivers 
       4             :  * Copyright (C) 1992         David Giller, rafetmad@oxy.edu
       5             :  *               1994, 1995   Eberhard Mönkeberg, emoenke@gwdg.de
       6             :  *               1996         David van Leeuwen, david@tm.tno.nl
       7             :  *               1997, 1998   Erik Andersen, andersee@debian.org
       8             :  *               1998-2002    Jens Axboe, axboe@suse.de
       9             :  */
      10             :  
      11             : #ifndef _LINUX_CDROM_H
      12             : #define _LINUX_CDROM_H
      13             : 
      14             : #include <linux/types.h>
      15             : #include <asm/byteorder.h>
      16             : 
      17             : /*******************************************************
      18             :  * As of Linux 2.1.x, all Linux CD-ROM application programs will use this 
      19             :  * (and only this) include file.  It is my hope to provide Linux with
      20             :  * a uniform interface between software accessing CD-ROMs and the various 
      21             :  * device drivers that actually talk to the drives.  There may still be
      22             :  * 23 different kinds of strange CD-ROM drives, but at least there will 
      23             :  * now be one, and only one, Linux CD-ROM interface.
      24             :  *
      25             :  * Additionally, as of Linux 2.1.x, all Linux application programs 
      26             :  * should use the O_NONBLOCK option when opening a CD-ROM device 
      27             :  * for subsequent ioctl commands.  This allows for neat system errors 
      28             :  * like "No medium found" or "Wrong medium type" upon attempting to 
      29             :  * mount or play an empty slot, mount an audio disc, or play a data disc.
      30             :  * Generally, changing an application program to support O_NONBLOCK
      31             :  * is as easy as the following:
      32             :  *       -    drive = open("/dev/cdrom", O_RDONLY);
      33             :  *       +    drive = open("/dev/cdrom", O_RDONLY | O_NONBLOCK);
      34             :  * It is worth the small change.
      35             :  *
      36             :  *  Patches for many common CD programs (provided by David A. van Leeuwen)
      37             :  *  can be found at:  ftp://ftp.gwdg.de/pub/linux/cdrom/drivers/cm206/
      38             :  * 
      39             :  *******************************************************/
      40             : 
      41             : /* When a driver supports a certain function, but the cdrom drive we are 
      42             :  * using doesn't, we will return the error EDRIVE_CANT_DO_THIS.  We will 
      43             :  * borrow the "Operation not supported" error from the network folks to 
      44             :  * accomplish this.  Maybe someday we will get a more targeted error code, 
      45             :  * but this will do for now... */
      46             : #define EDRIVE_CANT_DO_THIS  EOPNOTSUPP
      47             : 
      48             : /*******************************************************
      49             :  * The CD-ROM IOCTL commands  -- these should be supported by 
      50             :  * all the various cdrom drivers.  For the CD-ROM ioctls, we 
      51             :  * will commandeer byte 0x53, or 'S'.
      52             :  *******************************************************/
      53             : #define CDROMPAUSE              0x5301 /* Pause Audio Operation */ 
      54             : #define CDROMRESUME             0x5302 /* Resume paused Audio Operation */
      55             : #define CDROMPLAYMSF            0x5303 /* Play Audio MSF (struct cdrom_msf) */
      56             : #define CDROMPLAYTRKIND         0x5304 /* Play Audio Track/index 
      57             :                                            (struct cdrom_ti) */
      58             : #define CDROMREADTOCHDR         0x5305 /* Read TOC header 
      59             :                                            (struct cdrom_tochdr) */
      60             : #define CDROMREADTOCENTRY       0x5306 /* Read TOC entry 
      61             :                                            (struct cdrom_tocentry) */
      62             : #define CDROMSTOP               0x5307 /* Stop the cdrom drive */
      63             : #define CDROMSTART              0x5308 /* Start the cdrom drive */
      64             : #define CDROMEJECT              0x5309 /* Ejects the cdrom media */
      65             : #define CDROMVOLCTRL            0x530a /* Control output volume 
      66             :                                            (struct cdrom_volctrl) */
      67             : #define CDROMSUBCHNL            0x530b /* Read subchannel data 
      68             :                                            (struct cdrom_subchnl) */
      69             : #define CDROMREADMODE2          0x530c /* Read CDROM mode 2 data (2336 Bytes) 
      70             :                                            (struct cdrom_read) */
      71             : #define CDROMREADMODE1          0x530d /* Read CDROM mode 1 data (2048 Bytes)
      72             :                                            (struct cdrom_read) */
      73             : #define CDROMREADAUDIO          0x530e /* (struct cdrom_read_audio) */
      74             : #define CDROMEJECT_SW           0x530f /* enable(1)/disable(0) auto-ejecting */
      75             : #define CDROMMULTISESSION       0x5310 /* Obtain the start-of-last-session 
      76             :                                            address of multi session disks 
      77             :                                            (struct cdrom_multisession) */
      78             : #define CDROM_GET_MCN           0x5311 /* Obtain the "Universal Product Code" 
      79             :                                            if available (struct cdrom_mcn) */
      80             : #define CDROM_GET_UPC           CDROM_GET_MCN  /* This one is deprecated, 
      81             :                                           but here anyway for compatibility */
      82             : #define CDROMRESET              0x5312 /* hard-reset the drive */
      83             : #define CDROMVOLREAD            0x5313 /* Get the drive's volume setting 
      84             :                                           (struct cdrom_volctrl) */
      85             : #define CDROMREADRAW            0x5314  /* read data in raw mode (2352 Bytes)
      86             :                                            (struct cdrom_read) */
      87             : /* 
      88             :  * These ioctls are used only used in aztcd.c and optcd.c
      89             :  */
      90             : #define CDROMREADCOOKED         0x5315  /* read data in cooked mode */
      91             : #define CDROMSEEK               0x5316  /* seek msf address */
      92             :   
      93             : /*
      94             :  * This ioctl is only used by the scsi-cd driver.  
      95             :    It is for playing audio in logical block addressing mode.
      96             :  */
      97             : #define CDROMPLAYBLK            0x5317  /* (struct cdrom_blk) */
      98             : 
      99             : /* 
     100             :  * These ioctls are only used in optcd.c
     101             :  */
     102             : #define CDROMREADALL            0x5318  /* read all 2646 bytes */
     103             : 
     104             : /* 
     105             :  * These ioctls are (now) only in ide-cd.c for controlling 
     106             :  * drive spindown time.  They should be implemented in the
     107             :  * Uniform driver, via generic packet commands, GPCMD_MODE_SELECT_10,
     108             :  * GPCMD_MODE_SENSE_10 and the GPMODE_POWER_PAGE...
     109             :  *  -Erik
     110             :  */
     111             : #define CDROMGETSPINDOWN        0x531d
     112             : #define CDROMSETSPINDOWN        0x531e
     113             : 
     114             : /* 
     115             :  * These ioctls are implemented through the uniform CD-ROM driver
     116             :  * They _will_ be adopted by all CD-ROM drivers, when all the CD-ROM
     117             :  * drivers are eventually ported to the uniform CD-ROM driver interface.
     118             :  */
     119             : #define CDROMCLOSETRAY          0x5319  /* pendant of CDROMEJECT */
     120             : #define CDROM_SET_OPTIONS       0x5320  /* Set behavior options */
     121             : #define CDROM_CLEAR_OPTIONS     0x5321  /* Clear behavior options */
     122             : #define CDROM_SELECT_SPEED      0x5322  /* Set the CD-ROM speed */
     123             : #define CDROM_SELECT_DISC       0x5323  /* Select disc (for juke-boxes) */
     124             : #define CDROM_MEDIA_CHANGED     0x5325  /* Check is media changed  */
     125             : #define CDROM_DRIVE_STATUS      0x5326  /* Get tray position, etc. */
     126             : #define CDROM_DISC_STATUS       0x5327  /* Get disc type, etc. */
     127             : #define CDROM_CHANGER_NSLOTS    0x5328  /* Get number of slots */
     128             : #define CDROM_LOCKDOOR          0x5329  /* lock or unlock door */
     129             : #define CDROM_DEBUG             0x5330  /* Turn debug messages on/off */
     130             : #define CDROM_GET_CAPABILITY    0x5331  /* get capabilities */
     131             : 
     132             : /* Note that scsi/scsi_ioctl.h also uses 0x5382 - 0x5386.
     133             :  * Future CDROM ioctls should be kept below 0x537F
     134             :  */
     135             : 
     136             : /* This ioctl is only used by sbpcd at the moment */
     137             : #define CDROMAUDIOBUFSIZ        0x5382  /* set the audio buffer size */
     138             :                                         /* conflict with SCSI_IOCTL_GET_IDLUN */
     139             : 
     140             : /* DVD-ROM Specific ioctls */
     141             : #define DVD_READ_STRUCT         0x5390  /* Read structure */
     142             : #define DVD_WRITE_STRUCT        0x5391  /* Write structure */
     143             : #define DVD_AUTH                0x5392  /* Authentication */
     144             : 
     145             : #define CDROM_SEND_PACKET       0x5393  /* send a packet to the drive */
     146             : #define CDROM_NEXT_WRITABLE     0x5394  /* get next writable block */
     147             : #define CDROM_LAST_WRITTEN      0x5395  /* get last block written on disc */
     148             : 
     149             : /*******************************************************
     150             :  * CDROM IOCTL structures
     151             :  *******************************************************/
     152             : 
     153             : /* Address in MSF format */
     154             : struct cdrom_msf0               
     155             : {
     156             :         __u8    minute;
     157             :         __u8    second;
     158             :         __u8    frame;
     159             : };
     160           1 : 
     161             : /* Address in either MSF or logical format */
     162             : union cdrom_addr                
     163             : {
     164             :         struct cdrom_msf0       msf;
     165             :         int                     lba;
     166             : };
     167             : 
     168             : /* This struct is used by the CDROMPLAYMSF ioctl */ 
     169             : struct cdrom_msf 
     170             : {
     171             :         __u8    cdmsf_min0;     /* start minute */
     172             :         __u8    cdmsf_sec0;     /* start second */
     173             :         __u8    cdmsf_frame0;   /* start frame */
     174             :         __u8    cdmsf_min1;     /* end minute */
     175             :         __u8    cdmsf_sec1;     /* end second */
     176             :         __u8    cdmsf_frame1;   /* end frame */
     177             : };
     178             : 
     179             : /* This struct is used by the CDROMPLAYTRKIND ioctl */
     180             : struct cdrom_ti 
     181             : {
     182             :         __u8    cdti_trk0;      /* start track */
     183             :         __u8    cdti_ind0;      /* start index */
     184             :         __u8    cdti_trk1;      /* end track */
     185             :         __u8    cdti_ind1;      /* end index */
     186             : };
     187             : 
     188             : /* This struct is used by the CDROMREADTOCHDR ioctl */
     189             : struct cdrom_tochdr     
     190             : {
     191             :         __u8    cdth_trk0;      /* start track */
     192             :         __u8    cdth_trk1;      /* end track */
     193             : };
     194             : 
     195             : /* This struct is used by the CDROMVOLCTRL and CDROMVOLREAD ioctls */
     196             : struct cdrom_volctrl
     197             : {
     198             :         __u8    channel0;
     199             :         __u8    channel1;
     200             :         __u8    channel2;
     201             :         __u8    channel3;
     202             : };
     203             : 
     204             : /* This struct is used by the CDROMSUBCHNL ioctl */
     205             : struct cdrom_subchnl 
     206             : {
     207             :         __u8    cdsc_format;
     208             :         __u8    cdsc_audiostatus;
     209             :         __u8    cdsc_adr:       4;
     210             :         __u8    cdsc_ctrl:      4;
     211             :         __u8    cdsc_trk;
     212             :         __u8    cdsc_ind;
     213             :         union cdrom_addr cdsc_absaddr;
     214             :         union cdrom_addr cdsc_reladdr;
     215             : };
     216           1 : 
     217             : 
     218             : /* This struct is used by the CDROMREADTOCENTRY ioctl */
     219             : struct cdrom_tocentry 
     220             : {
     221             :         __u8    cdte_track;
     222             :         __u8    cdte_adr        :4;
     223             :         __u8    cdte_ctrl       :4;
     224             :         __u8    cdte_format;
     225             :         union cdrom_addr cdte_addr;
     226             :         __u8    cdte_datamode;
     227             : };
     228             : 
     229             : /* This struct is used by the CDROMREADMODE1, and CDROMREADMODE2 ioctls */
     230             : struct cdrom_read      
     231             : {
     232             :         int     cdread_lba;
     233             :         char    *cdread_bufaddr;
     234             :         int     cdread_buflen;
     235             : };
     236             : 
     237             : /* This struct is used by the CDROMREADAUDIO ioctl */
     238             : struct cdrom_read_audio
     239             : {
     240             :         union cdrom_addr addr; /* frame address */
     241             :         __u8 addr_format;      /* CDROM_LBA or CDROM_MSF */
     242             :         int nframes;           /* number of 2352-byte-frames to read at once */
     243             :         __u8 __user *buf;      /* frame buffer (size: nframes*2352 bytes) */
     244             : };
     245           1 : 
     246             : /* This struct is used with the CDROMMULTISESSION ioctl */
     247             : struct cdrom_multisession
     248             : {
     249             :         union cdrom_addr addr; /* frame address: start-of-last-session 
     250             :                                    (not the new "frame 16"!).  Only valid
     251             :                                    if the "xa_flag" is true. */
     252             :         __u8 xa_flag;        /* 1: "is XA disk" */
     253             :         __u8 addr_format;    /* CDROM_LBA or CDROM_MSF */
     254             : };
     255             : 
     256             : /* This struct is used with the CDROM_GET_MCN ioctl.  
     257             :  * Very few audio discs actually have Universal Product Code information, 
     258             :  * which should just be the Medium Catalog Number on the box.  Also note 
     259             :  * that the way the codeis written on CD is _not_ uniform across all discs!
     260             :  */  
     261             : struct cdrom_mcn 
     262             : {
     263             :   __u8 medium_catalog_number[14]; /* 13 ASCII digits, null-terminated */
     264             : };
     265             : 
     266             : /* This is used by the CDROMPLAYBLK ioctl */
     267             : struct cdrom_blk 
     268             : {
     269             :         unsigned from;
     270             :         unsigned short len;
     271             : };
     272             : 
     273             : #define CDROM_PACKET_SIZE       12
     274             : 
     275             : #define CGC_DATA_UNKNOWN        0
     276             : #define CGC_DATA_WRITE          1
     277             : #define CGC_DATA_READ           2
     278             : #define CGC_DATA_NONE           3
     279             : 
     280             : /* for CDROM_PACKET_COMMAND ioctl */
     281             : struct cdrom_generic_command
     282             : {
     283             :         unsigned char           cmd[CDROM_PACKET_SIZE];
     284             :         unsigned char           __user *buffer;
     285             :         unsigned int            buflen;
     286             :         int                     stat;
     287             :         struct request_sense    __user *sense;
     288             :         unsigned char           data_direction;
     289             :         int                     quiet;
     290             :         int                     timeout;
     291             :         void                    __user *reserved[1];    /* unused, actually */
     292             : };
     293             : 
     294             : /*
     295             :  * A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336, 
     296             :  * 2340, or 2352 bytes long.  
     297             : 
     298             : *         Sector types of the standard CD-ROM data formats:
     299             :  *
     300             :  * format   sector type               user data size (bytes)
     301             :  * -----------------------------------------------------------------------------
     302             :  *   1     (Red Book)    CD-DA          2352    (CD_FRAMESIZE_RAW)
     303             :  *   2     (Yellow Book) Mode1 Form1    2048    (CD_FRAMESIZE)
     304             :  *   3     (Yellow Book) Mode1 Form2    2336    (CD_FRAMESIZE_RAW0)
     305             :  *   4     (Green Book)  Mode2 Form1    2048    (CD_FRAMESIZE)
     306             :  *   5     (Green Book)  Mode2 Form2    2328    (2324+4 spare bytes)
     307             :  *
     308             :  *
     309             :  *       The layout of the standard CD-ROM data formats:
     310             :  * -----------------------------------------------------------------------------
     311             :  * - audio (red):                  | audio_sample_bytes |
     312             :  *                                 |        2352        |
     313             :  *
     314             :  * - data (yellow, mode1):         | sync - head - data - EDC - zero - ECC |
     315             :  *                                 |  12  -   4  - 2048 -  4  -   8  - 276 |
     316             :  *
     317             :  * - data (yellow, mode2):         | sync - head - data |
     318             :  *                                 |  12  -   4  - 2336 |
     319             :  *
     320             :  * - XA data (green, mode2 form1): | sync - head - sub - data - EDC - ECC |
     321             :  *                                 |  12  -   4  -  8  - 2048 -  4  - 276 |
     322             :  *
     323             :  * - XA data (green, mode2 form2): | sync - head - sub - data - Spare |
     324             :  *                                 |  12  -   4  -  8  - 2324 -  4    |
     325             :  *
     326             :  */
     327             : 
     328             : /* Some generally useful CD-ROM information -- mostly based on the above */
     329             : #define CD_MINS              74 /* max. minutes per CD, not really a limit */
     330             : #define CD_SECS              60 /* seconds per minute */
     331             : #define CD_FRAMES            75 /* frames per second */
     332             : #define CD_SYNC_SIZE         12 /* 12 sync bytes per raw data frame */
     333             : #define CD_MSF_OFFSET       150 /* MSF numbering offset of first frame */
     334             : #define CD_CHUNK_SIZE        24 /* lowest-level "data bytes piece" */
     335             : #define CD_NUM_OF_CHUNKS     98 /* chunks per frame */
     336             : #define CD_FRAMESIZE_SUB     96 /* subchannel data "frame" size */
     337             : #define CD_HEAD_SIZE          4 /* header (address) bytes per raw data frame */
     338             : #define CD_SUBHEAD_SIZE       8 /* subheader bytes per raw XA data frame */
     339             : #define CD_EDC_SIZE           4 /* bytes EDC per most raw data frame types */
     340             : #define CD_ZERO_SIZE          8 /* bytes zero per yellow book mode 1 frame */
     341             : #define CD_ECC_SIZE         276 /* bytes ECC per most raw data frame types */
     342             : #define CD_FRAMESIZE       2048 /* bytes per frame, "cooked" mode */
     343             : #define CD_FRAMESIZE_RAW   2352 /* bytes per frame, "raw" mode */
     344             : #define CD_FRAMESIZE_RAWER 2646 /* The maximum possible returned bytes */ 
     345             : /* most drives don't deliver everything: */
     346             : #define CD_FRAMESIZE_RAW1 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE) /*2340*/
     347             : #define CD_FRAMESIZE_RAW0 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE-CD_HEAD_SIZE) /*2336*/
     348             : 
     349             : #define CD_XA_HEAD        (CD_HEAD_SIZE+CD_SUBHEAD_SIZE) /* "before data" part of raw XA frame */
     350             : #define CD_XA_TAIL        (CD_EDC_SIZE+CD_ECC_SIZE) /* "after data" part of raw XA frame */
     351             : #define CD_XA_SYNC_HEAD   (CD_SYNC_SIZE+CD_XA_HEAD) /* sync bytes + header of XA frame */
     352             : 
     353             : /* CD-ROM address types (cdrom_tocentry.cdte_format) */
     354             : #define CDROM_LBA 0x01 /* "logical block": first frame is #0 */
     355             : #define CDROM_MSF 0x02 /* "minute-second-frame": binary, not bcd here! */
     356             : 
     357             : /* bit to tell whether track is data or audio (cdrom_tocentry.cdte_ctrl) */
     358             : #define CDROM_DATA_TRACK        0x04
     359             : 
     360             : /* The leadout track is always 0xAA, regardless of # of tracks on disc */
     361             : #define CDROM_LEADOUT           0xAA
     362             : 
     363             : /* audio states (from SCSI-2, but seen with other drives, too) */
     364             : #define CDROM_AUDIO_INVALID     0x00    /* audio status not supported */
     365             : #define CDROM_AUDIO_PLAY        0x11    /* audio play operation in progress */
     366             : #define CDROM_AUDIO_PAUSED      0x12    /* audio play operation paused */
     367             : #define CDROM_AUDIO_COMPLETED   0x13    /* audio play successfully completed */
     368             : #define CDROM_AUDIO_ERROR       0x14    /* audio play stopped due to error */
     369             : #define CDROM_AUDIO_NO_STATUS   0x15    /* no current audio status to return */
     370             : 
     371             : /* capability flags used with the uniform CD-ROM driver */ 
     372             : #define CDC_CLOSE_TRAY          0x1     /* caddy systems _can't_ close */
     373             : #define CDC_OPEN_TRAY           0x2     /* but _can_ eject.  */
     374             : #define CDC_LOCK                0x4     /* disable manual eject */
     375             : #define CDC_SELECT_SPEED        0x8     /* programmable speed */
     376             : #define CDC_SELECT_DISC         0x10    /* select disc from juke-box */
     377             : #define CDC_MULTI_SESSION       0x20    /* read sessions>1 */
     378             : #define CDC_MCN                 0x40    /* Medium Catalog Number */
     379             : #define CDC_MEDIA_CHANGED       0x80    /* media changed */
     380             : #define CDC_PLAY_AUDIO          0x100   /* audio functions */
     381             : #define CDC_RESET               0x200   /* hard reset device */
     382             : #define CDC_DRIVE_STATUS        0x800   /* driver implements drive status */
     383             : #define CDC_GENERIC_PACKET      0x1000  /* driver implements generic packets */
     384             : #define CDC_CD_R                0x2000  /* drive is a CD-R */
     385             : #define CDC_CD_RW               0x4000  /* drive is a CD-RW */
     386             : #define CDC_DVD                 0x8000  /* drive is a DVD */
     387             : #define CDC_DVD_R               0x10000 /* drive can write DVD-R */
     388             : #define CDC_DVD_RAM             0x20000 /* drive can write DVD-RAM */
     389             : #define CDC_MO_DRIVE            0x40000 /* drive is an MO device */
     390             : #define CDC_MRW                 0x80000 /* drive can read MRW */
     391             : #define CDC_MRW_W               0x100000 /* drive can write MRW */
     392             : #define CDC_RAM                 0x200000 /* ok to open for WRITE */
     393             : 
     394             : /* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */
     395             : #define CDS_NO_INFO             0       /* if not implemented */
     396             : #define CDS_NO_DISC             1
     397             : #define CDS_TRAY_OPEN           2
     398             : #define CDS_DRIVE_NOT_READY     3
     399             : #define CDS_DISC_OK             4
     400             : 
     401             : /* return values for the CDROM_DISC_STATUS ioctl */
     402             : /* can also return CDS_NO_[INFO|DISC], from above */
     403             : #define CDS_AUDIO               100
     404             : #define CDS_DATA_1              101
     405             : #define CDS_DATA_2              102
     406             : #define CDS_XA_2_1              103
     407             : #define CDS_XA_2_2              104
     408             : #define CDS_MIXED               105
     409             : 
     410             : /* User-configurable behavior options for the uniform CD-ROM driver */
     411             : #define CDO_AUTO_CLOSE          0x1     /* close tray on first open() */
     412             : #define CDO_AUTO_EJECT          0x2     /* open tray on last release() */
     413             : #define CDO_USE_FFLAGS          0x4     /* use O_NONBLOCK information on open */
     414             : #define CDO_LOCK                0x8     /* lock tray on open files */
     415             : #define CDO_CHECK_TYPE          0x10    /* check type on open for data */
     416             : 
     417             : /* Special codes used when specifying changer slots. */
     418             : #define CDSL_NONE               (INT_MAX-1)
     419             : #define CDSL_CURRENT            INT_MAX
     420             : 
     421             : /* For partition based multisession access. IDE can handle 64 partitions
     422             :  * per drive - SCSI CD-ROM's use minors to differentiate between the
     423             :  * various drives, so we can't do multisessions the same way there.
     424             :  * Use the -o session=x option to mount on them.
     425             :  */
     426             : #define CD_PART_MAX             64
     427             : #define CD_PART_MASK            (CD_PART_MAX - 1)
     428             : 
     429             : /*********************************************************************
     430             :  * Generic Packet commands, MMC commands, and such
     431             :  *********************************************************************/
     432             : 
     433             :  /* The generic packet command opcodes for CD/DVD Logical Units,
     434             :  * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
     435             : #define GPCMD_BLANK                         0xa1
     436             : #define GPCMD_CLOSE_TRACK                   0x5b
     437             : #define GPCMD_FLUSH_CACHE                   0x35
     438             : #define GPCMD_FORMAT_UNIT                   0x04
     439             : #define GPCMD_GET_CONFIGURATION             0x46
     440             : #define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
     441             : #define GPCMD_GET_PERFORMANCE               0xac
     442             : #define GPCMD_INQUIRY                       0x12
     443             : #define GPCMD_LOAD_UNLOAD                   0xa6
     444             : #define GPCMD_MECHANISM_STATUS              0xbd
     445             : #define GPCMD_MODE_SELECT_10                0x55
     446             : #define GPCMD_MODE_SENSE_10                 0x5a
     447             : #define GPCMD_PAUSE_RESUME                  0x4b
     448             : #define GPCMD_PLAY_AUDIO_10                 0x45
     449             : #define GPCMD_PLAY_AUDIO_MSF                0x47
     450             : #define GPCMD_PLAY_AUDIO_TI                 0x48
     451             : #define GPCMD_PLAY_CD                       0xbc
     452             : #define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL  0x1e
     453             : #define GPCMD_READ_10                       0x28
     454             : #define GPCMD_READ_12                       0xa8
     455             : #define GPCMD_READ_BUFFER                   0x3c
     456             : #define GPCMD_READ_BUFFER_CAPACITY          0x5c
     457             : #define GPCMD_READ_CDVD_CAPACITY            0x25
     458             : #define GPCMD_READ_CD                       0xbe
     459             : #define GPCMD_READ_CD_MSF                   0xb9
     460             : #define GPCMD_READ_DISC_INFO                0x51
     461             : #define GPCMD_READ_DVD_STRUCTURE            0xad
     462             : #define GPCMD_READ_FORMAT_CAPACITIES        0x23
     463             : #define GPCMD_READ_HEADER                   0x44
     464             : #define GPCMD_READ_TRACK_RZONE_INFO         0x52
     465             : #define GPCMD_READ_SUBCHANNEL               0x42
     466             : #define GPCMD_READ_TOC_PMA_ATIP             0x43
     467             : #define GPCMD_REPAIR_RZONE_TRACK            0x58
     468             : #define GPCMD_REPORT_KEY                    0xa4
     469             : #define GPCMD_REQUEST_SENSE                 0x03
     470             : #define GPCMD_RESERVE_RZONE_TRACK           0x53
     471             : #define GPCMD_SEND_CUE_SHEET                0x5d
     472             : #define GPCMD_SCAN                          0xba
     473             : #define GPCMD_SEEK                          0x2b
     474             : #define GPCMD_SEND_DVD_STRUCTURE            0xbf
     475             : #define GPCMD_SEND_EVENT                    0xa2
     476             : #define GPCMD_SEND_KEY                      0xa3
     477             : #define GPCMD_SEND_OPC                      0x54
     478             : #define GPCMD_SET_READ_AHEAD                0xa7
     479             : #define GPCMD_SET_STREAMING                 0xb6
     480             : #define GPCMD_START_STOP_UNIT               0x1b
     481             : #define GPCMD_STOP_PLAY_SCAN                0x4e
     482             : #define GPCMD_TEST_UNIT_READY               0x00
     483             : #define GPCMD_VERIFY_10                     0x2f
     484             : #define GPCMD_WRITE_10                      0x2a
     485             : #define GPCMD_WRITE_12                      0xaa
     486             : #define GPCMD_WRITE_AND_VERIFY_10           0x2e
     487             : #define GPCMD_WRITE_BUFFER                  0x3b
     488             : /* This is listed as optional in ATAPI 2.6, but is (curiously) 
     489             :  * missing from Mt. Fuji, Table 57.  It _is_ mentioned in Mt. Fuji
     490             :  * Table 377 as an MMC command for SCSi devices though...  Most ATAPI
     491             :  * drives support it. */
     492             : #define GPCMD_SET_SPEED                     0xbb
     493             : /* This seems to be a SCSI specific CD-ROM opcode 
     494             :  * to play data at track/index */
     495             : #define GPCMD_PLAYAUDIO_TI                  0x48
     496             : /*
     497             :  * From MS Media Status Notification Support Specification. For
     498             :  * older drives only.
     499             :  */
     500             : #define GPCMD_GET_MEDIA_STATUS              0xda
     501             : 
     502             : /* Mode page codes for mode sense/set */
     503             : #define GPMODE_VENDOR_PAGE              0x00
     504             : #define GPMODE_R_W_ERROR_PAGE           0x01
     505             : #define GPMODE_WRITE_PARMS_PAGE         0x05
     506             : #define GPMODE_WCACHING_PAGE            0x08
     507             : #define GPMODE_AUDIO_CTL_PAGE           0x0e
     508             : #define GPMODE_POWER_PAGE               0x1a
     509             : #define GPMODE_FAULT_FAIL_PAGE          0x1c
     510             : #define GPMODE_TO_PROTECT_PAGE          0x1d
     511             : #define GPMODE_CAPABILITIES_PAGE        0x2a
     512             : #define GPMODE_ALL_PAGES                0x3f
     513             : /* Not in Mt. Fuji, but in ATAPI 2.6 -- deprecated now in favor
     514             :  * of MODE_SENSE_POWER_PAGE */
     515             : #define GPMODE_CDROM_PAGE               0x0d
     516             : 
     517             : 
     518             : 
     519             : /* DVD struct types */
     520             : #define DVD_STRUCT_PHYSICAL     0x00
     521             : #define DVD_STRUCT_COPYRIGHT    0x01
     522             : #define DVD_STRUCT_DISCKEY      0x02
     523             : #define DVD_STRUCT_BCA          0x03
     524             : #define DVD_STRUCT_MANUFACT     0x04
     525             : 
     526             : struct dvd_layer {
     527             :         __u8 book_version       : 4;
     528             :         __u8 book_type          : 4;
     529             :         __u8 min_rate           : 4;
     530             :         __u8 disc_size          : 4;
     531             :         __u8 layer_type         : 4;
     532             :         __u8 track_path         : 1;
     533             :         __u8 nlayers            : 2;
     534             :         __u8 track_density      : 4;
     535             :         __u8 linear_density     : 4;
     536             :         __u8 bca                : 1;
     537             :         __u32 start_sector;
     538             :         __u32 end_sector;
     539             :         __u32 end_sector_l0;
     540             : };
     541             : 
     542             : #define DVD_LAYERS      4
     543             : 
     544             : struct dvd_physical {
     545             :         __u8 type;
     546             :         __u8 layer_num;
     547             :         struct dvd_layer layer[DVD_LAYERS];
     548             : };
     549             : 
     550             : struct dvd_copyright {
     551             :         __u8 type;
     552             : 
     553             :         __u8 layer_num;
     554             :         __u8 cpst;
     555             :         __u8 rmi;
     556             : };
     557             : 
     558             : struct dvd_disckey {
     559             :         __u8 type;
     560             : 
     561             :         unsigned agid           : 2;
     562             :         __u8 value[2048];
     563             : };
     564             : 
     565             : struct dvd_bca {
     566             :         __u8 type;
     567             : 
     568             :         int len;
     569             :         __u8 value[188];
     570             : };
     571             : 
     572             : struct dvd_manufact {
     573             :         __u8 type;
     574             : 
     575             :         __u8 layer_num;
     576             :         int len;
     577             :         __u8 value[2048];
     578             : };
     579             : 
     580             : typedef union {
     581             :         __u8 type;
     582             : 
     583             :         struct dvd_physical     physical;
     584             :         struct dvd_copyright    copyright;
     585             :         struct dvd_disckey      disckey;
     586             :         struct dvd_bca          bca;
     587             :         struct dvd_manufact     manufact;
     588             : } dvd_struct;
     589             : 
     590             : /*
     591             :  * DVD authentication ioctl
     592             :  */
     593             : 
     594             : /* Authentication states */
     595             : #define DVD_LU_SEND_AGID        0
     596             : #define DVD_HOST_SEND_CHALLENGE 1
     597             : #define DVD_LU_SEND_KEY1        2
     598             : #define DVD_LU_SEND_CHALLENGE   3
     599             : #define DVD_HOST_SEND_KEY2      4
     600             : 
     601             : /* Termination states */
     602             : #define DVD_AUTH_ESTABLISHED    5
     603             : #define DVD_AUTH_FAILURE        6
     604             : 
     605             : /* Other functions */
     606             : #define DVD_LU_SEND_TITLE_KEY   7
     607             : #define DVD_LU_SEND_ASF         8
     608             : #define DVD_INVALIDATE_AGID     9
     609             : #define DVD_LU_SEND_RPC_STATE   10
     610             : #define DVD_HOST_SEND_RPC_STATE 11
     611             : 
     612             : /* State data */
     613             : typedef __u8 dvd_key[5];                /* 40-bit value, MSB is first elem. */
     614             : typedef __u8 dvd_challenge[10]; /* 80-bit value, MSB is first elem. */
     615             : 
     616             : struct dvd_lu_send_agid {
     617             :         __u8 type;
     618             :         unsigned agid           : 2;
     619             : };
     620             : 
     621             : struct dvd_host_send_challenge {
     622             :         __u8 type;
     623             :         unsigned agid           : 2;
     624             : 
     625             :         dvd_challenge chal;
     626             : };
     627             : 
     628             : struct dvd_send_key {
     629             :         __u8 type;
     630             :         unsigned agid           : 2;
     631             : 
     632             :         dvd_key key;
     633             : };
     634             : 
     635             : struct dvd_lu_send_challenge {
     636             :         __u8 type;
     637             :         unsigned agid           : 2;
     638             : 
     639             :         dvd_challenge chal;
     640             : };
     641             : 
     642             : #define DVD_CPM_NO_COPYRIGHT    0
     643             : #define DVD_CPM_COPYRIGHTED     1
     644             : 
     645             : #define DVD_CP_SEC_NONE         0
     646             : #define DVD_CP_SEC_EXIST        1
     647             : 
     648             : #define DVD_CGMS_UNRESTRICTED   0
     649             : #define DVD_CGMS_SINGLE         2
     650             : #define DVD_CGMS_RESTRICTED     3
     651             : 
     652             : struct dvd_lu_send_title_key {
     653             :         __u8 type;
     654             :         unsigned agid           : 2;
     655             : 
     656             :         dvd_key title_key;
     657             :         int lba;
     658             :         unsigned cpm            : 1;
     659             :         unsigned cp_sec         : 1;
     660             :         unsigned cgms           : 2;
     661             : };
     662             : 
     663             : struct dvd_lu_send_asf {
     664             :         __u8 type;
     665             :         unsigned agid           : 2;
     666             : 
     667             :         unsigned asf            : 1;
     668             : };
     669             : 
     670             : struct dvd_host_send_rpcstate {
     671             :         __u8 type;
     672             :         __u8 pdrc;
     673             : };
     674             : 
     675             : struct dvd_lu_send_rpcstate {
     676             :         __u8 type               : 2;
     677             :         __u8 vra                : 3;
     678             :         __u8 ucca               : 3;
     679             :         __u8 region_mask;
     680             :         __u8 rpc_scheme;
     681             : };
     682             : 
     683             : typedef union {
     684             :         __u8 type;
     685             : 
     686             :         struct dvd_lu_send_agid         lsa;
     687             :         struct dvd_host_send_challenge  hsc;
     688             :         struct dvd_send_key             lsk;
     689             :         struct dvd_lu_send_challenge    lsc;
     690             :         struct dvd_send_key             hsk;
     691             :         struct dvd_lu_send_title_key    lstk;
     692             :         struct dvd_lu_send_asf          lsasf;
     693             :         struct dvd_host_send_rpcstate   hrpcs;
     694             :         struct dvd_lu_send_rpcstate     lrpcs;
     695             : } dvd_authinfo;
     696             : 
     697             : struct request_sense {
     698             : #if defined(__BIG_ENDIAN_BITFIELD)
     699             :         __u8 valid              : 1;
     700             :         __u8 error_code         : 7;
     701             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
     702             :         __u8 error_code         : 7;
     703             :         __u8 valid              : 1;
     704             : #endif
     705             :         __u8 segment_number;
     706             : #if defined(__BIG_ENDIAN_BITFIELD)
     707             :         __u8 reserved1          : 2;
     708             :         __u8 ili                : 1;
     709             :         __u8 reserved2          : 1;
     710             :         __u8 sense_key          : 4;
     711             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
     712             :         __u8 sense_key          : 4;
     713             :         __u8 reserved2          : 1;
     714             :         __u8 ili                : 1;
     715             :         __u8 reserved1          : 2;
     716             : #endif
     717             :         __u8 information[4];
     718             :         __u8 add_sense_len;
     719             :         __u8 command_info[4];
     720             :         __u8 asc;
     721             :         __u8 ascq;
     722             :         __u8 fruc;
     723             :         __u8 sks[3];
     724             :         __u8 asb[46];
     725             : };
     726             : 
     727             : /*
     728             :  * feature profile
     729             :  */
     730             : #define CDF_RWRT        0x0020  /* "Random Writable" */
     731             : #define CDF_HWDM        0x0024  /* "Hardware Defect Management" */
     732             : #define CDF_MRW         0x0028
     733             : 
     734             : /*
     735             :  * media status bits
     736             :  */
     737             : #define CDM_MRW_NOTMRW                  0
     738             : #define CDM_MRW_BGFORMAT_INACTIVE       1
     739             : #define CDM_MRW_BGFORMAT_ACTIVE         2
     740             : #define CDM_MRW_BGFORMAT_COMPLETE       3
     741             : 
     742             : /*
     743             :  * mrw address spaces
     744             :  */
     745             : #define MRW_LBA_DMA                     0
     746             : #define MRW_LBA_GAA                     1
     747             : 
     748             : /*
     749             :  * mrw mode pages (first is deprecated) -- probed at init time and
     750             :  * cdi->mrw_mode_page is set
     751             :  */
     752             : #define MRW_MODE_PC_PRE1                0x2c
     753             : #define MRW_MODE_PC                     0x03
     754             : 
     755             : struct mrw_feature_desc {
     756             :         __be16 feature_code;
     757             : #if defined(__BIG_ENDIAN_BITFIELD)
     758             :         __u8 reserved1          : 2;
     759             :         __u8 feature_version    : 4;
     760             :         __u8 persistent         : 1;
     761             :         __u8 curr               : 1;
     762             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
     763             :         __u8 curr               : 1;
     764             :         __u8 persistent         : 1;
     765             :         __u8 feature_version    : 4;
     766             :         __u8 reserved1          : 2;
     767             : #endif
     768             :         __u8 add_len;
     769             : #if defined(__BIG_ENDIAN_BITFIELD)
     770             :         __u8 reserved2          : 7;
     771             :         __u8 write              : 1;
     772             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
     773             :         __u8 write              : 1;
     774             :         __u8 reserved2          : 7;
     775             : #endif
     776             :         __u8 reserved3;
     777             :         __u8 reserved4;
     778             :         __u8 reserved5;
     779             : };
     780             : 
     781             : /* cf. mmc4r02g.pdf 5.3.10 Random Writable Feature (0020h) pg 197 of 635 */
     782             : struct rwrt_feature_desc {
     783             :         __be16 feature_code;
     784             : #if defined(__BIG_ENDIAN_BITFIELD)
     785             :         __u8 reserved1          : 2;
     786             :         __u8 feature_version    : 4;
     787             :         __u8 persistent         : 1;
     788             :         __u8 curr               : 1;
     789             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
     790             :         __u8 curr               : 1;
     791             :         __u8 persistent         : 1;
     792             :         __u8 feature_version    : 4;
     793             :         __u8 reserved1          : 2;
     794             : #endif
     795             :         __u8 add_len;
     796             :         __u32 last_lba;
     797             :         __u32 block_size;
     798             :         __u16 blocking;
     799             : #if defined(__BIG_ENDIAN_BITFIELD)
     800             :         __u8 reserved2          : 7;
     801             :         __u8 page_present       : 1;
     802             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
     803             :         __u8 page_present       : 1;
     804             :         __u8 reserved2          : 7;
     805             : #endif
     806             :         __u8 reserved3;
     807             : };
     808             : 
     809             : typedef struct {
     810             :         __be16 disc_information_length;
     811             : #if defined(__BIG_ENDIAN_BITFIELD)
     812             :         __u8 reserved1                  : 3;
     813             :         __u8 erasable                   : 1;
     814             :         __u8 border_status              : 2;
     815             :         __u8 disc_status                : 2;
     816             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
     817             :         __u8 disc_status                : 2;
     818             :         __u8 border_status              : 2;
     819             :         __u8 erasable                   : 1;
     820             :         __u8 reserved1                  : 3;
     821             : #else
     822             : #error "Please fix <asm/byteorder.h>"
     823             : #endif
     824             :         __u8 n_first_track;
     825             :         __u8 n_sessions_lsb;
     826             :         __u8 first_track_lsb;
     827             :         __u8 last_track_lsb;
     828             : #if defined(__BIG_ENDIAN_BITFIELD)
     829             :         __u8 did_v                      : 1;
     830             :         __u8 dbc_v                      : 1;
     831             :         __u8 uru                        : 1;
     832             :         __u8 reserved2                  : 2;
     833             :         __u8 dbit                       : 1;
     834             :         __u8 mrw_status                 : 2;
     835             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
     836             :         __u8 mrw_status                 : 2;
     837             :         __u8 dbit                       : 1;
     838             :         __u8 reserved2                  : 2;
     839             :         __u8 uru                        : 1;
     840             :         __u8 dbc_v                      : 1;
     841             :         __u8 did_v                      : 1;
     842             : #endif
     843             :         __u8 disc_type;
     844             :         __u8 n_sessions_msb;
     845             :         __u8 first_track_msb;
     846             :         __u8 last_track_msb;
     847             :         __u32 disc_id;
     848             :         __u32 lead_in;
     849             :         __u32 lead_out;
     850             :         __u8 disc_bar_code[8];
     851             :         __u8 reserved3;
     852             :         __u8 n_opc;
     853             : } disc_information;
     854             : 
     855             : typedef struct {
     856             :         __be16 track_information_length;
     857             :         __u8 track_lsb;
     858             :         __u8 session_lsb;
     859             :         __u8 reserved1;
     860             : #if defined(__BIG_ENDIAN_BITFIELD)
     861             :         __u8 reserved2                  : 2;
     862             :         __u8 damage                     : 1;
     863             :         __u8 copy                       : 1;
     864             :         __u8 track_mode                 : 4;
     865             :         __u8 rt                         : 1;
     866             :         __u8 blank                      : 1;
     867             :         __u8 packet                     : 1;
     868             :         __u8 fp                         : 1;
     869             :         __u8 data_mode                  : 4;
     870             :         __u8 reserved3                  : 6;
     871             :         __u8 lra_v                      : 1;
     872             :         __u8 nwa_v                      : 1;
     873             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
     874             :         __u8 track_mode                 : 4;
     875             :         __u8 copy                       : 1;
     876             :         __u8 damage                     : 1;
     877             :         __u8 reserved2                  : 2;
     878             :         __u8 data_mode                  : 4;
     879             :         __u8 fp                         : 1;
     880             :         __u8 packet                     : 1;
     881             :         __u8 blank                      : 1;
     882             :         __u8 rt                         : 1;
     883             :         __u8 nwa_v                      : 1;
     884             :         __u8 lra_v                      : 1;
     885             :         __u8 reserved3                  : 6;
     886             : #endif
     887             :         __be32 track_start;
     888             :         __be32 next_writable;
     889             :         __be32 free_blocks;
     890             :         __be32 fixed_packet_size;
     891             :         __be32 track_size;
     892             :         __be32 last_rec_address;
     893             : } track_information;
     894             : 
     895             : struct feature_header {
     896             :         __u32 data_len;
     897             :         __u8 reserved1;
     898             :         __u8 reserved2;
     899             :         __u16 curr_profile;
     900             : };
     901             : 
     902             : struct mode_page_header {
     903             :         __be16 mode_data_length;
     904             :         __u8 medium_type;
     905             :         __u8 reserved1;
     906             :         __u8 reserved2;
     907             :         __u8 reserved3;
     908             :         __be16 desc_length;
     909             : };
     910             : 
     911             : #ifdef __KERNEL__
     912             : #include <linux/fs.h>             /* not really needed, later.. */
     913             : #include <linux/device.h>
     914             : #include <linux/list.h>
     915             : 
     916             : struct packet_command
     917             : {
     918             :         unsigned char           cmd[CDROM_PACKET_SIZE];
     919             :         unsigned char           *buffer;
     920             :         unsigned int            buflen;
     921             :         int                     stat;
     922             :         struct request_sense    *sense;
     923             :         unsigned char           data_direction;
     924             :         int                     quiet;
     925             :         int                     timeout;
     926             :         void                    *reserved[1];
     927             : };
     928             : 
     929             : /*
     930             :  * _OLD will use PIO transfer on atapi devices, _BPC_* will use DMA
     931             :  */
     932             : #define CDDA_OLD                0       /* old style */
     933             : #define CDDA_BPC_SINGLE         1       /* single frame block pc */
     934             : #define CDDA_BPC_FULL           2       /* multi frame block pc */
     935             : 
     936             : /* Uniform cdrom data structures for cdrom.c */
     937             : struct cdrom_device_info {
     938             :         struct cdrom_device_ops  *ops;  /* link to device_ops */
     939             :         struct list_head list;          /* linked list of all device_info */
     940             :         struct gendisk *disk;           /* matching block layer disk */
     941             :         void *handle;                   /* driver-dependent data */
     942             : /* specifications */
     943             :         int mask;                       /* mask of capability: disables them */
     944             :         int speed;                      /* maximum speed for reading data */
     945             :         int capacity;                   /* number of discs in jukebox */
     946             : /* device-related storage */
     947             :         unsigned int options    : 30;   /* options flags */
     948             :         unsigned mc_flags       : 2;    /* media change buffer flags */
     949             :         int use_count;                  /* number of times device opened */
     950             :         char name[20];                  /* name of the device type */
     951             : /* per-device flags */
     952             :         __u8 sanyo_slot         : 2;    /* Sanyo 3 CD changer support */
     953             :         __u8 reserved           : 6;    /* not used yet */
     954             :         int cdda_method;                /* see flags */
     955             :         __u8 last_sense;
     956             :         __u8 media_written;             /* dirty flag, DVD+RW bookkeeping */
     957             :         unsigned short mmc3_profile;    /* current MMC3 profile */
     958             :         int for_data;
     959             :         int (*exit)(struct cdrom_device_info *);
     960             :         int mrw_mode_page;
     961             : };
     962             : 
     963             : struct cdrom_device_ops {
     964             : /* routines */
     965             :         int (*open) (struct cdrom_device_info *, int);
     966             :         void (*release) (struct cdrom_device_info *);
     967             :         int (*drive_status) (struct cdrom_device_info *, int);
     968             :         int (*media_changed) (struct cdrom_device_info *, int);
     969             :         int (*tray_move) (struct cdrom_device_info *, int);
     970             :         int (*lock_door) (struct cdrom_device_info *, int);
     971             :         int (*select_speed) (struct cdrom_device_info *, int);
     972             :         int (*select_disc) (struct cdrom_device_info *, int);
     973             :         int (*get_last_session) (struct cdrom_device_info *,
     974             :                                  struct cdrom_multisession *);
     975             :         int (*get_mcn) (struct cdrom_device_info *,
     976             :                         struct cdrom_mcn *);
     977             :         /* hard reset device */
     978             :         int (*reset) (struct cdrom_device_info *);
     979             :         /* play stuff */
     980             :         int (*audio_ioctl) (struct cdrom_device_info *,unsigned int, void *);
     981             : 
     982             : /* driver specifications */
     983             :         const int capability;   /* capability flags */
     984             :         int n_minors;           /* number of active minor devices */
     985             :         /* handle uniform packets for scsi type devices (scsi,atapi) */
     986             :         int (*generic_packet) (struct cdrom_device_info *,
     987             :                                struct packet_command *);
     988             : };
     989             : 
     990             : /* the general block_device operations structure: */
     991             : extern int cdrom_open(struct cdrom_device_info *cdi, struct block_device *bdev,
     992             :                         fmode_t mode);
     993             : extern void cdrom_release(struct cdrom_device_info *cdi, fmode_t mode);
     994             : extern int cdrom_ioctl(struct cdrom_device_info *cdi, struct block_device *bdev,
     995             :                        fmode_t mode, unsigned int cmd, unsigned long arg);
     996             : extern int cdrom_media_changed(struct cdrom_device_info *);
     997             : 
     998             : extern int register_cdrom(struct cdrom_device_info *cdi);
     999             : extern void unregister_cdrom(struct cdrom_device_info *cdi);
    1000             : 
    1001             : typedef struct {
    1002             :     int data;
    1003             :     int audio;
    1004             :     int cdi;
    1005             :     int xa;
    1006             :     long error;
    1007             : } tracktype;
    1008             : 
    1009             : extern int cdrom_get_last_written(struct cdrom_device_info *cdi, long *last_written);
    1010             : extern int cdrom_number_of_slots(struct cdrom_device_info *cdi);
    1011             : extern int cdrom_mode_select(struct cdrom_device_info *cdi,
    1012             :                              struct packet_command *cgc);
    1013             : extern int cdrom_mode_sense(struct cdrom_device_info *cdi,
    1014             :                             struct packet_command *cgc,
    1015             :                             int page_code, int page_control);
    1016             : extern void init_cdrom_command(struct packet_command *cgc,
    1017             :                                void *buffer, int len, int type);
    1018             : 
    1019             : /* The SCSI spec says there could be 256 slots. */
    1020             : #define CDROM_MAX_SLOTS 256
    1021             : 
    1022             : struct cdrom_mechstat_header {
    1023             : #if defined(__BIG_ENDIAN_BITFIELD)
    1024             :         __u8 fault         : 1;
    1025             :         __u8 changer_state : 2;
    1026             :         __u8 curslot       : 5;
    1027             :         __u8 mech_state    : 3;
    1028             :         __u8 door_open     : 1;
    1029             :         __u8 reserved1     : 4;
    1030             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
    1031             :         __u8 curslot       : 5;
    1032             :         __u8 changer_state : 2;
    1033             :         __u8 fault         : 1;
    1034             :         __u8 reserved1     : 4;
    1035             :         __u8 door_open     : 1;
    1036             :         __u8 mech_state    : 3;
    1037             : #endif
    1038             :         __u8     curlba[3];
    1039             :         __u8     nslots;
    1040             :         __u16 slot_tablelen;
    1041             : };
    1042             : 
    1043             : struct cdrom_slot {
    1044             : #if defined(__BIG_ENDIAN_BITFIELD)
    1045             :         __u8 disc_present : 1;
    1046             :         __u8 reserved1    : 6;
    1047             :         __u8 change       : 1;
    1048             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
    1049             :         __u8 change       : 1;
    1050             :         __u8 reserved1    : 6;
    1051             :         __u8 disc_present : 1;
    1052             : #endif
    1053             :         __u8 reserved2[3];
    1054             : };
    1055             : 
    1056             : struct cdrom_changer_info {
    1057             :         struct cdrom_mechstat_header hdr;
    1058             :         struct cdrom_slot slots[CDROM_MAX_SLOTS];
    1059             : };
    1060             : 
    1061             : typedef enum {
    1062             :         mechtype_caddy = 0,
    1063             :         mechtype_tray  = 1,
    1064             :         mechtype_popup = 2,
    1065             :         mechtype_individual_changer = 4,
    1066             :         mechtype_cartridge_changer  = 5
    1067             : } mechtype_t;
    1068             : 
    1069             : typedef struct {
    1070             : #if defined(__BIG_ENDIAN_BITFIELD)
    1071             :         __u8 ps                 : 1;
    1072             :         __u8 reserved1          : 1;
    1073             :         __u8 page_code          : 6;
    1074             :         __u8 page_length;
    1075             :         __u8 reserved2          : 1;
    1076             :         __u8 bufe               : 1;
    1077             :         __u8 ls_v               : 1;
    1078             :         __u8 test_write         : 1;
    1079             :         __u8 write_type         : 4;
    1080             :         __u8 multi_session      : 2; /* or border, DVD */
    1081             :         __u8 fp                 : 1;
    1082             :         __u8 copy               : 1;
    1083             :         __u8 track_mode         : 4;
    1084             :         __u8 reserved3          : 4;
    1085             :         __u8 data_block_type    : 4;
    1086             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
    1087             :         __u8 page_code          : 6;
    1088             :         __u8 reserved1          : 1;
    1089             :         __u8 ps                 : 1;
    1090             :         __u8 page_length;
    1091             :         __u8 write_type         : 4;
    1092             :         __u8 test_write         : 1;
    1093             :         __u8 ls_v               : 1;
    1094             :         __u8 bufe               : 1;
    1095             :         __u8 reserved2          : 1;
    1096             :         __u8 track_mode         : 4;
    1097             :         __u8 copy               : 1;
    1098             :         __u8 fp                 : 1;
    1099             :         __u8 multi_session      : 2; /* or border, DVD */
    1100             :         __u8 data_block_type    : 4;
    1101             :         __u8 reserved3          : 4;
    1102             : #endif
    1103             :         __u8 link_size;
    1104             :         __u8 reserved4;
    1105             : #if defined(__BIG_ENDIAN_BITFIELD)
    1106             :         __u8 reserved5          : 2;
    1107             :         __u8 app_code           : 6;
    1108             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
    1109             :         __u8 app_code           : 6;
    1110             :         __u8 reserved5          : 2;
    1111             : #endif
    1112             :         __u8 session_format;
    1113             :         __u8 reserved6;
    1114             :         __be32 packet_size;
    1115             :         __u16 audio_pause;
    1116             :         __u8 mcn[16];
    1117             :         __u8 isrc[16];
    1118             :         __u8 subhdr0;
    1119             :         __u8 subhdr1;
    1120             :         __u8 subhdr2;
    1121             :         __u8 subhdr3;
    1122             : } __attribute__((packed)) write_param_page;
    1123             : 
    1124             : struct modesel_head
    1125             : {
    1126             :         __u8    reserved1;
    1127             :         __u8    medium;
    1128             :         __u8    reserved2;
    1129             :         __u8    block_desc_length;
    1130             :         __u8    density;
    1131             :         __u8    number_of_blocks_hi;
    1132             :         __u8    number_of_blocks_med;
    1133             :         __u8    number_of_blocks_lo;
    1134             :         __u8    reserved3;
    1135             :         __u8    block_length_hi;
    1136             :         __u8    block_length_med;
    1137             :         __u8    block_length_lo;
    1138             : };
    1139             : 
    1140             : typedef struct {
    1141             :         __u16 report_key_length;
    1142             :         __u8 reserved1;
    1143             :         __u8 reserved2;
    1144             : #if defined(__BIG_ENDIAN_BITFIELD)
    1145             :         __u8 type_code                  : 2;
    1146             :         __u8 vra                        : 3;
    1147             :         __u8 ucca                       : 3;
    1148             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
    1149             :         __u8 ucca                       : 3;
    1150             :         __u8 vra                        : 3;
    1151             :         __u8 type_code                  : 2;
    1152             : #endif
    1153             :         __u8 region_mask;
    1154             :         __u8 rpc_scheme;
    1155             :         __u8 reserved3;
    1156             : } rpc_state_t;
    1157             : 
    1158             : struct event_header {
    1159             :         __be16 data_len;
    1160             : #if defined(__BIG_ENDIAN_BITFIELD)
    1161             :         __u8 nea                : 1;
    1162             :         __u8 reserved1          : 4;
    1163             :         __u8 notification_class : 3;
    1164             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
    1165             :         __u8 notification_class : 3;
    1166             :         __u8 reserved1          : 4;
    1167             :         __u8 nea                : 1;
    1168             : #endif
    1169             :         __u8 supp_event_class;
    1170             : };
    1171             : 
    1172             : struct media_event_desc {
    1173             : #if defined(__BIG_ENDIAN_BITFIELD)
    1174             :         __u8 reserved1          : 4;
    1175             :         __u8 media_event_code   : 4;
    1176             :         __u8 reserved2          : 6;
    1177             :         __u8 media_present      : 1;
    1178             :         __u8 door_open          : 1;
    1179             : #elif defined(__LITTLE_ENDIAN_BITFIELD)
    1180             :         __u8 media_event_code   : 4;
    1181             :         __u8 reserved1          : 4;
    1182             :         __u8 door_open          : 1;
    1183             :         __u8 media_present      : 1;
    1184             :         __u8 reserved2          : 6;
    1185             : #endif
    1186             :         __u8 start_slot;
    1187             :         __u8 end_slot;
    1188             : };
    1189             : 
    1190             : extern int cdrom_get_media_event(struct cdrom_device_info *cdi, struct media_event_desc *med);
    1191             : 
    1192             : static inline void lba_to_msf(int lba, u8 *m, u8 *s, u8 *f)
    1193             : {
    1194             :         lba += CD_MSF_OFFSET;
    1195             :         lba &= 0xffffff;  /* negative lbas use only 24 bits */
    1196             :         *m = lba / (CD_SECS * CD_FRAMES);
    1197             :         lba %= (CD_SECS * CD_FRAMES);
    1198             :         *s = lba / CD_FRAMES;
    1199             :         *f = lba % CD_FRAMES;
    1200             : }
    1201             : 
    1202             : static inline int msf_to_lba(u8 m, u8 s, u8 f)
    1203             : {
    1204             :         return (((m * CD_SECS) + s) * CD_FRAMES + f) - CD_MSF_OFFSET;
    1205             : }
    1206           1 : #endif  /* End of kernel only stuff */ 
    1207             : 
    1208             : #endif  /* _LINUX_CDROM_H */

Generated by: LCOV version 1.10