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cdrom.h (29560B) - Raw


      1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
      2 /*
      3  * -- <linux/cdrom.h>
      4  * General header file for linux CD-ROM drivers 
      5  * Copyright (C) 1992         David Giller, rafetmad@oxy.edu
      6  *               1994, 1995   Eberhard Mönkeberg, emoenke@gwdg.de
      7  *               1996         David van Leeuwen, david@tm.tno.nl
      8  *               1997, 1998   Erik Andersen, andersee@debian.org
      9  *               1998-2002    Jens Axboe, axboe@suse.de
     10  */
     11  
     12 #ifndef _LINUX_CDROM_H
     13 #define _LINUX_CDROM_H
     14 
     15 #include <linux/types.h>
     16 #include <asm/byteorder.h>
     17 
     18 /*******************************************************
     19  * As of Linux 2.1.x, all Linux CD-ROM application programs will use this 
     20  * (and only this) include file.  It is my hope to provide Linux with
     21  * a uniform interface between software accessing CD-ROMs and the various 
     22  * device drivers that actually talk to the drives.  There may still be
     23  * 23 different kinds of strange CD-ROM drives, but at least there will 
     24  * now be one, and only one, Linux CD-ROM interface.
     25  *
     26  * Additionally, as of Linux 2.1.x, all Linux application programs 
     27  * should use the O_NONBLOCK option when opening a CD-ROM device 
     28  * for subsequent ioctl commands.  This allows for neat system errors 
     29  * like "No medium found" or "Wrong medium type" upon attempting to 
     30  * mount or play an empty slot, mount an audio disc, or play a data disc.
     31  * Generally, changing an application program to support O_NONBLOCK
     32  * is as easy as the following:
     33  *       -    drive = open("/dev/cdrom", O_RDONLY);
     34  *       +    drive = open("/dev/cdrom", O_RDONLY | O_NONBLOCK);
     35  * It is worth the small change.
     36  *
     37  *  Patches for many common CD programs (provided by David A. van Leeuwen)
     38  *  can be found at:  ftp://ftp.gwdg.de/pub/linux/cdrom/drivers/cm206/
     39  * 
     40  *******************************************************/
     41 
     42 /* When a driver supports a certain function, but the cdrom drive we are 
     43  * using doesn't, we will return the error EDRIVE_CANT_DO_THIS.  We will 
     44  * borrow the "Operation not supported" error from the network folks to 
     45  * accomplish this.  Maybe someday we will get a more targeted error code, 
     46  * but this will do for now... */
     47 #define EDRIVE_CANT_DO_THIS  EOPNOTSUPP
     48 
     49 /*******************************************************
     50  * The CD-ROM IOCTL commands  -- these should be supported by 
     51  * all the various cdrom drivers.  For the CD-ROM ioctls, we 
     52  * will commandeer byte 0x53, or 'S'.
     53  *******************************************************/
     54 #define CDROMPAUSE		0x5301 /* Pause Audio Operation */ 
     55 #define CDROMRESUME		0x5302 /* Resume paused Audio Operation */
     56 #define CDROMPLAYMSF		0x5303 /* Play Audio MSF (struct cdrom_msf) */
     57 #define CDROMPLAYTRKIND		0x5304 /* Play Audio Track/index 
     58                                            (struct cdrom_ti) */
     59 #define CDROMREADTOCHDR		0x5305 /* Read TOC header 
     60                                            (struct cdrom_tochdr) */
     61 #define CDROMREADTOCENTRY	0x5306 /* Read TOC entry 
     62                                            (struct cdrom_tocentry) */
     63 #define CDROMSTOP		0x5307 /* Stop the cdrom drive */
     64 #define CDROMSTART		0x5308 /* Start the cdrom drive */
     65 #define CDROMEJECT		0x5309 /* Ejects the cdrom media */
     66 #define CDROMVOLCTRL		0x530a /* Control output volume 
     67                                            (struct cdrom_volctrl) */
     68 #define CDROMSUBCHNL		0x530b /* Read subchannel data 
     69                                            (struct cdrom_subchnl) */
     70 #define CDROMREADMODE2		0x530c /* Read CDROM mode 2 data (2336 Bytes) 
     71                                            (struct cdrom_read) */
     72 #define CDROMREADMODE1		0x530d /* Read CDROM mode 1 data (2048 Bytes)
     73                                            (struct cdrom_read) */
     74 #define CDROMREADAUDIO		0x530e /* (struct cdrom_read_audio) */
     75 #define CDROMEJECT_SW		0x530f /* enable(1)/disable(0) auto-ejecting */
     76 #define CDROMMULTISESSION	0x5310 /* Obtain the start-of-last-session 
     77                                            address of multi session disks 
     78                                            (struct cdrom_multisession) */
     79 #define CDROM_GET_MCN		0x5311 /* Obtain the "Universal Product Code" 
     80                                            if available (struct cdrom_mcn) */
     81 #define CDROM_GET_UPC		CDROM_GET_MCN  /* This one is deprecated, 
     82                                           but here anyway for compatibility */
     83 #define CDROMRESET		0x5312 /* hard-reset the drive */
     84 #define CDROMVOLREAD		0x5313 /* Get the drive's volume setting 
     85                                           (struct cdrom_volctrl) */
     86 #define CDROMREADRAW		0x5314	/* read data in raw mode (2352 Bytes)
     87                                            (struct cdrom_read) */
     88 /* 
     89  * These ioctls are used only used in aztcd.c and optcd.c
     90  */
     91 #define CDROMREADCOOKED		0x5315	/* read data in cooked mode */
     92 #define CDROMSEEK		0x5316  /* seek msf address */
     93   
     94 /*
     95  * This ioctl is only used by the scsi-cd driver.  
     96    It is for playing audio in logical block addressing mode.
     97  */
     98 #define CDROMPLAYBLK		0x5317	/* (struct cdrom_blk) */
     99 
    100 /* 
    101  * These ioctls are only used in optcd.c
    102  */
    103 #define CDROMREADALL		0x5318	/* read all 2646 bytes */
    104 
    105 /* 
    106  * These ioctls were only in (now removed) ide-cd.c for controlling
    107  * drive spindown time.  They should be implemented in the
    108  * Uniform driver, via generic packet commands, GPCMD_MODE_SELECT_10,
    109  * GPCMD_MODE_SENSE_10 and the GPMODE_POWER_PAGE...
    110  *  -Erik
    111  */
    112 #define CDROMGETSPINDOWN        0x531d
    113 #define CDROMSETSPINDOWN        0x531e
    114 
    115 /* 
    116  * These ioctls are implemented through the uniform CD-ROM driver
    117  * They _will_ be adopted by all CD-ROM drivers, when all the CD-ROM
    118  * drivers are eventually ported to the uniform CD-ROM driver interface.
    119  */
    120 #define CDROMCLOSETRAY		0x5319	/* pendant of CDROMEJECT */
    121 #define CDROM_SET_OPTIONS	0x5320  /* Set behavior options */
    122 #define CDROM_CLEAR_OPTIONS	0x5321  /* Clear behavior options */
    123 #define CDROM_SELECT_SPEED	0x5322  /* Set the CD-ROM speed */
    124 #define CDROM_SELECT_DISC	0x5323  /* Select disc (for juke-boxes) */
    125 #define CDROM_MEDIA_CHANGED	0x5325  /* Check is media changed  */
    126 #define CDROM_DRIVE_STATUS	0x5326  /* Get tray position, etc. */
    127 #define CDROM_DISC_STATUS	0x5327  /* Get disc type, etc. */
    128 #define CDROM_CHANGER_NSLOTS    0x5328  /* Get number of slots */
    129 #define CDROM_LOCKDOOR		0x5329  /* lock or unlock door */
    130 #define CDROM_DEBUG		0x5330	/* Turn debug messages on/off */
    131 #define CDROM_GET_CAPABILITY	0x5331	/* get capabilities */
    132 
    133 /* Note that scsi/scsi_ioctl.h also uses 0x5382 - 0x5386.
    134  * Future CDROM ioctls should be kept below 0x537F
    135  */
    136 
    137 /* This ioctl is only used by sbpcd at the moment */
    138 #define CDROMAUDIOBUFSIZ        0x5382	/* set the audio buffer size */
    139 					/* conflict with SCSI_IOCTL_GET_IDLUN */
    140 
    141 /* DVD-ROM Specific ioctls */
    142 #define DVD_READ_STRUCT		0x5390  /* Read structure */
    143 #define DVD_WRITE_STRUCT	0x5391  /* Write structure */
    144 #define DVD_AUTH		0x5392  /* Authentication */
    145 
    146 #define CDROM_SEND_PACKET	0x5393	/* send a packet to the drive */
    147 #define CDROM_NEXT_WRITABLE	0x5394	/* get next writable block */
    148 #define CDROM_LAST_WRITTEN	0x5395	/* get last block written on disc */
    149 
    150 #define CDROM_TIMED_MEDIA_CHANGE   0x5396  /* get the timestamp of the last media change */
    151 
    152 /*******************************************************
    153  * CDROM IOCTL structures
    154  *******************************************************/
    155 
    156 /* Address in MSF format */
    157 struct cdrom_msf0		
    158 {
    159 	__u8	minute;
    160 	__u8	second;
    161 	__u8	frame;
    162 };
    163 
    164 /* Address in either MSF or logical format */
    165 union cdrom_addr		
    166 {
    167 	struct cdrom_msf0	msf;
    168 	int			lba;
    169 };
    170 
    171 /* This struct is used by the CDROMPLAYMSF ioctl */ 
    172 struct cdrom_msf 
    173 {
    174 	__u8	cdmsf_min0;	/* start minute */
    175 	__u8	cdmsf_sec0;	/* start second */
    176 	__u8	cdmsf_frame0;	/* start frame */
    177 	__u8	cdmsf_min1;	/* end minute */
    178 	__u8	cdmsf_sec1;	/* end second */
    179 	__u8	cdmsf_frame1;	/* end frame */
    180 };
    181 
    182 /* This struct is used by the CDROMPLAYTRKIND ioctl */
    183 struct cdrom_ti 
    184 {
    185 	__u8	cdti_trk0;	/* start track */
    186 	__u8	cdti_ind0;	/* start index */
    187 	__u8	cdti_trk1;	/* end track */
    188 	__u8	cdti_ind1;	/* end index */
    189 };
    190 
    191 /* This struct is used by the CDROMREADTOCHDR ioctl */
    192 struct cdrom_tochdr 	
    193 {
    194 	__u8	cdth_trk0;	/* start track */
    195 	__u8	cdth_trk1;	/* end track */
    196 };
    197 
    198 /* This struct is used by the CDROMVOLCTRL and CDROMVOLREAD ioctls */
    199 struct cdrom_volctrl
    200 {
    201 	__u8	channel0;
    202 	__u8	channel1;
    203 	__u8	channel2;
    204 	__u8	channel3;
    205 };
    206 
    207 /* This struct is used by the CDROMSUBCHNL ioctl */
    208 struct cdrom_subchnl 
    209 {
    210 	__u8	cdsc_format;
    211 	__u8	cdsc_audiostatus;
    212 	__u8	cdsc_adr:	4;
    213 	__u8	cdsc_ctrl:	4;
    214 	__u8	cdsc_trk;
    215 	__u8	cdsc_ind;
    216 	union cdrom_addr cdsc_absaddr;
    217 	union cdrom_addr cdsc_reladdr;
    218 };
    219 
    220 
    221 /* This struct is used by the CDROMREADTOCENTRY ioctl */
    222 struct cdrom_tocentry 
    223 {
    224 	__u8	cdte_track;
    225 	__u8	cdte_adr	:4;
    226 	__u8	cdte_ctrl	:4;
    227 	__u8	cdte_format;
    228 	union cdrom_addr cdte_addr;
    229 	__u8	cdte_datamode;
    230 };
    231 
    232 /* This struct is used by the CDROMREADMODE1, and CDROMREADMODE2 ioctls */
    233 struct cdrom_read      
    234 {
    235 	int	cdread_lba;
    236 	char 	*cdread_bufaddr;
    237 	int	cdread_buflen;
    238 };
    239 
    240 /* This struct is used by the CDROMREADAUDIO ioctl */
    241 struct cdrom_read_audio
    242 {
    243 	union cdrom_addr addr; /* frame address */
    244 	__u8 addr_format;      /* CDROM_LBA or CDROM_MSF */
    245 	int nframes;           /* number of 2352-byte-frames to read at once */
    246 	__u8 *buf;      /* frame buffer (size: nframes*2352 bytes) */
    247 };
    248 
    249 /* This struct is used with the CDROMMULTISESSION ioctl */
    250 struct cdrom_multisession
    251 {
    252 	union cdrom_addr addr; /* frame address: start-of-last-session 
    253 	                           (not the new "frame 16"!).  Only valid
    254 	                           if the "xa_flag" is true. */
    255 	__u8 xa_flag;        /* 1: "is XA disk" */
    256 	__u8 addr_format;    /* CDROM_LBA or CDROM_MSF */
    257 };
    258 
    259 /* This struct is used with the CDROM_GET_MCN ioctl.  
    260  * Very few audio discs actually have Universal Product Code information, 
    261  * which should just be the Medium Catalog Number on the box.  Also note 
    262  * that the way the codeis written on CD is _not_ uniform across all discs!
    263  */  
    264 struct cdrom_mcn 
    265 {
    266   __u8 medium_catalog_number[14]; /* 13 ASCII digits, null-terminated */
    267 };
    268 
    269 /* This is used by the CDROMPLAYBLK ioctl */
    270 struct cdrom_blk 
    271 {
    272 	unsigned from;
    273 	unsigned short len;
    274 };
    275 
    276 #define CDROM_PACKET_SIZE	12
    277 
    278 #define CGC_DATA_UNKNOWN	0
    279 #define CGC_DATA_WRITE		1
    280 #define CGC_DATA_READ		2
    281 #define CGC_DATA_NONE		3
    282 
    283 /* for CDROM_PACKET_COMMAND ioctl */
    284 struct cdrom_generic_command
    285 {
    286 	unsigned char 		cmd[CDROM_PACKET_SIZE];
    287 	unsigned char		*buffer;
    288 	unsigned int 		buflen;
    289 	int			stat;
    290 	struct request_sense	*sense;
    291 	unsigned char		data_direction;
    292 	int			quiet;
    293 	int			timeout;
    294 	union {
    295 		void		*reserved[1];	/* unused, actually */
    296 		void            *unused;
    297 	};
    298 };
    299 
    300 /* This struct is used by CDROM_TIMED_MEDIA_CHANGE */
    301 struct cdrom_timed_media_change_info {
    302 	__s64	last_media_change;	/* Timestamp of the last detected media
    303 					 * change in ms. May be set by caller,
    304 					 * updated upon successful return of
    305 					 * ioctl.
    306 					 */
    307 	__u64	media_flags;		/* Flags returned by ioctl to indicate
    308 					 * media status.
    309 					 */
    310 };
    311 #define MEDIA_CHANGED_FLAG	0x1	/* Last detected media change was more
    312 					 * recent than last_media_change set by
    313 					 * caller.
    314 					 */
    315 /* other bits of media_flags available for future use */
    316 
    317 /*
    318  * A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336, 
    319  * 2340, or 2352 bytes long.  
    320 
    321 *         Sector types of the standard CD-ROM data formats:
    322  *
    323  * format   sector type               user data size (bytes)
    324  * -----------------------------------------------------------------------------
    325  *   1     (Red Book)    CD-DA          2352    (CD_FRAMESIZE_RAW)
    326  *   2     (Yellow Book) Mode1 Form1    2048    (CD_FRAMESIZE)
    327  *   3     (Yellow Book) Mode1 Form2    2336    (CD_FRAMESIZE_RAW0)
    328  *   4     (Green Book)  Mode2 Form1    2048    (CD_FRAMESIZE)
    329  *   5     (Green Book)  Mode2 Form2    2328    (2324+4 spare bytes)
    330  *
    331  *
    332  *       The layout of the standard CD-ROM data formats:
    333  * -----------------------------------------------------------------------------
    334  * - audio (red):                  | audio_sample_bytes |
    335  *                                 |        2352        |
    336  *
    337  * - data (yellow, mode1):         | sync - head - data - EDC - zero - ECC |
    338  *                                 |  12  -   4  - 2048 -  4  -   8  - 276 |
    339  *
    340  * - data (yellow, mode2):         | sync - head - data |
    341  *                                 |  12  -   4  - 2336 |
    342  *
    343  * - XA data (green, mode2 form1): | sync - head - sub - data - EDC - ECC |
    344  *                                 |  12  -   4  -  8  - 2048 -  4  - 276 |
    345  *
    346  * - XA data (green, mode2 form2): | sync - head - sub - data - Spare |
    347  *                                 |  12  -   4  -  8  - 2324 -  4    |
    348  *
    349  */
    350 
    351 /* Some generally useful CD-ROM information -- mostly based on the above */
    352 #define CD_MINS              74 /* max. minutes per CD, not really a limit */
    353 #define CD_SECS              60 /* seconds per minute */
    354 #define CD_FRAMES            75 /* frames per second */
    355 #define CD_SYNC_SIZE         12 /* 12 sync bytes per raw data frame */
    356 #define CD_MSF_OFFSET       150 /* MSF numbering offset of first frame */
    357 #define CD_CHUNK_SIZE        24 /* lowest-level "data bytes piece" */
    358 #define CD_NUM_OF_CHUNKS     98 /* chunks per frame */
    359 #define CD_FRAMESIZE_SUB     96 /* subchannel data "frame" size */
    360 #define CD_HEAD_SIZE          4 /* header (address) bytes per raw data frame */
    361 #define CD_SUBHEAD_SIZE       8 /* subheader bytes per raw XA data frame */
    362 #define CD_EDC_SIZE           4 /* bytes EDC per most raw data frame types */
    363 #define CD_ZERO_SIZE          8 /* bytes zero per yellow book mode 1 frame */
    364 #define CD_ECC_SIZE         276 /* bytes ECC per most raw data frame types */
    365 #define CD_FRAMESIZE       2048 /* bytes per frame, "cooked" mode */
    366 #define CD_FRAMESIZE_RAW   2352 /* bytes per frame, "raw" mode */
    367 #define CD_FRAMESIZE_RAWER 2646 /* The maximum possible returned bytes */ 
    368 /* most drives don't deliver everything: */
    369 #define CD_FRAMESIZE_RAW1 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE) /*2340*/
    370 #define CD_FRAMESIZE_RAW0 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE-CD_HEAD_SIZE) /*2336*/
    371 
    372 #define CD_XA_HEAD        (CD_HEAD_SIZE+CD_SUBHEAD_SIZE) /* "before data" part of raw XA frame */
    373 #define CD_XA_TAIL        (CD_EDC_SIZE+CD_ECC_SIZE) /* "after data" part of raw XA frame */
    374 #define CD_XA_SYNC_HEAD   (CD_SYNC_SIZE+CD_XA_HEAD) /* sync bytes + header of XA frame */
    375 
    376 /* CD-ROM address types (cdrom_tocentry.cdte_format) */
    377 #define	CDROM_LBA 0x01 /* "logical block": first frame is #0 */
    378 #define	CDROM_MSF 0x02 /* "minute-second-frame": binary, not bcd here! */
    379 
    380 /* bit to tell whether track is data or audio (cdrom_tocentry.cdte_ctrl) */
    381 #define	CDROM_DATA_TRACK	0x04
    382 
    383 /* The leadout track is always 0xAA, regardless of # of tracks on disc */
    384 #define	CDROM_LEADOUT		0xAA
    385 
    386 /* audio states (from SCSI-2, but seen with other drives, too) */
    387 #define	CDROM_AUDIO_INVALID	0x00	/* audio status not supported */
    388 #define	CDROM_AUDIO_PLAY	0x11	/* audio play operation in progress */
    389 #define	CDROM_AUDIO_PAUSED	0x12	/* audio play operation paused */
    390 #define	CDROM_AUDIO_COMPLETED	0x13	/* audio play successfully completed */
    391 #define	CDROM_AUDIO_ERROR	0x14	/* audio play stopped due to error */
    392 #define	CDROM_AUDIO_NO_STATUS	0x15	/* no current audio status to return */
    393 
    394 /* capability flags used with the uniform CD-ROM driver */ 
    395 #define CDC_CLOSE_TRAY		0x1     /* caddy systems _can't_ close */
    396 #define CDC_OPEN_TRAY		0x2     /* but _can_ eject.  */
    397 #define CDC_LOCK		0x4     /* disable manual eject */
    398 #define CDC_SELECT_SPEED 	0x8     /* programmable speed */
    399 #define CDC_SELECT_DISC		0x10    /* select disc from juke-box */
    400 #define CDC_MULTI_SESSION 	0x20    /* read sessions>1 */
    401 #define CDC_MCN			0x40    /* Medium Catalog Number */
    402 #define CDC_MEDIA_CHANGED 	0x80    /* media changed */
    403 #define CDC_PLAY_AUDIO		0x100   /* audio functions */
    404 #define CDC_RESET               0x200   /* hard reset device */
    405 #define CDC_DRIVE_STATUS        0x800   /* driver implements drive status */
    406 #define CDC_GENERIC_PACKET	0x1000	/* driver implements generic packets */
    407 #define CDC_CD_R		0x2000	/* drive is a CD-R */
    408 #define CDC_CD_RW		0x4000	/* drive is a CD-RW */
    409 #define CDC_DVD			0x8000	/* drive is a DVD */
    410 #define CDC_DVD_R		0x10000	/* drive can write DVD-R */
    411 #define CDC_DVD_RAM		0x20000	/* drive can write DVD-RAM */
    412 #define CDC_MO_DRIVE		0x40000 /* drive is an MO device */
    413 #define CDC_MRW			0x80000 /* drive can read MRW */
    414 #define CDC_MRW_W		0x100000 /* drive can write MRW */
    415 #define CDC_RAM			0x200000 /* ok to open for WRITE */
    416 
    417 /* drive status possibilities returned by CDROM_DRIVE_STATUS ioctl */
    418 #define CDS_NO_INFO		0	/* if not implemented */
    419 #define CDS_NO_DISC		1
    420 #define CDS_TRAY_OPEN		2
    421 #define CDS_DRIVE_NOT_READY	3
    422 #define CDS_DISC_OK		4
    423 
    424 /* return values for the CDROM_DISC_STATUS ioctl */
    425 /* can also return CDS_NO_[INFO|DISC], from above */
    426 #define CDS_AUDIO		100
    427 #define CDS_DATA_1		101
    428 #define CDS_DATA_2		102
    429 #define CDS_XA_2_1		103
    430 #define CDS_XA_2_2		104
    431 #define CDS_MIXED		105
    432 
    433 /* User-configurable behavior options for the uniform CD-ROM driver */
    434 #define CDO_AUTO_CLOSE		0x1     /* close tray on first open() */
    435 #define CDO_AUTO_EJECT		0x2     /* open tray on last release() */
    436 #define CDO_USE_FFLAGS		0x4     /* use O_NONBLOCK information on open */
    437 #define CDO_LOCK		0x8     /* lock tray on open files */
    438 #define CDO_CHECK_TYPE		0x10    /* check type on open for data */
    439 
    440 /* Special codes used when specifying changer slots. */
    441 #define CDSL_NONE       	(INT_MAX-1)
    442 #define CDSL_CURRENT    	INT_MAX
    443 
    444 /* For partition based multisession access. IDE can handle 64 partitions
    445  * per drive - SCSI CD-ROM's use minors to differentiate between the
    446  * various drives, so we can't do multisessions the same way there.
    447  * Use the -o session=x option to mount on them.
    448  */
    449 #define CD_PART_MAX		64
    450 #define CD_PART_MASK		(CD_PART_MAX - 1)
    451 
    452 /*********************************************************************
    453  * Generic Packet commands, MMC commands, and such
    454  *********************************************************************/
    455 
    456  /* The generic packet command opcodes for CD/DVD Logical Units,
    457  * From Table 57 of the SFF8090 Ver. 3 (Mt. Fuji) draft standard. */
    458 #define GPCMD_BLANK			    0xa1
    459 #define GPCMD_CLOSE_TRACK		    0x5b
    460 #define GPCMD_FLUSH_CACHE		    0x35
    461 #define GPCMD_FORMAT_UNIT		    0x04
    462 #define GPCMD_GET_CONFIGURATION		    0x46
    463 #define GPCMD_GET_EVENT_STATUS_NOTIFICATION 0x4a
    464 #define GPCMD_GET_PERFORMANCE		    0xac
    465 #define GPCMD_INQUIRY			    0x12
    466 #define GPCMD_LOAD_UNLOAD		    0xa6
    467 #define GPCMD_MECHANISM_STATUS		    0xbd
    468 #define GPCMD_MODE_SELECT_10		    0x55
    469 #define GPCMD_MODE_SENSE_10		    0x5a
    470 #define GPCMD_PAUSE_RESUME		    0x4b
    471 #define GPCMD_PLAY_AUDIO_10		    0x45
    472 #define GPCMD_PLAY_AUDIO_MSF		    0x47
    473 #define GPCMD_PLAY_AUDIO_TI		    0x48
    474 #define GPCMD_PLAY_CD			    0xbc
    475 #define GPCMD_PREVENT_ALLOW_MEDIUM_REMOVAL  0x1e
    476 #define GPCMD_READ_10			    0x28
    477 #define GPCMD_READ_12			    0xa8
    478 #define GPCMD_READ_BUFFER		    0x3c
    479 #define GPCMD_READ_BUFFER_CAPACITY	    0x5c
    480 #define GPCMD_READ_CDVD_CAPACITY	    0x25
    481 #define GPCMD_READ_CD			    0xbe
    482 #define GPCMD_READ_CD_MSF		    0xb9
    483 #define GPCMD_READ_DISC_INFO		    0x51
    484 #define GPCMD_READ_DVD_STRUCTURE	    0xad
    485 #define GPCMD_READ_FORMAT_CAPACITIES	    0x23
    486 #define GPCMD_READ_HEADER		    0x44
    487 #define GPCMD_READ_TRACK_RZONE_INFO	    0x52
    488 #define GPCMD_READ_SUBCHANNEL		    0x42
    489 #define GPCMD_READ_TOC_PMA_ATIP		    0x43
    490 #define GPCMD_REPAIR_RZONE_TRACK	    0x58
    491 #define GPCMD_REPORT_KEY		    0xa4
    492 #define GPCMD_REQUEST_SENSE		    0x03
    493 #define GPCMD_RESERVE_RZONE_TRACK	    0x53
    494 #define GPCMD_SEND_CUE_SHEET		    0x5d
    495 #define GPCMD_SCAN			    0xba
    496 #define GPCMD_SEEK			    0x2b
    497 #define GPCMD_SEND_DVD_STRUCTURE	    0xbf
    498 #define GPCMD_SEND_EVENT		    0xa2
    499 #define GPCMD_SEND_KEY			    0xa3
    500 #define GPCMD_SEND_OPC			    0x54
    501 #define GPCMD_SET_READ_AHEAD		    0xa7
    502 #define GPCMD_SET_STREAMING		    0xb6
    503 #define GPCMD_START_STOP_UNIT		    0x1b
    504 #define GPCMD_STOP_PLAY_SCAN		    0x4e
    505 #define GPCMD_TEST_UNIT_READY		    0x00
    506 #define GPCMD_VERIFY_10			    0x2f
    507 #define GPCMD_WRITE_10			    0x2a
    508 #define GPCMD_WRITE_12			    0xaa
    509 #define GPCMD_WRITE_AND_VERIFY_10	    0x2e
    510 #define GPCMD_WRITE_BUFFER		    0x3b
    511 /* This is listed as optional in ATAPI 2.6, but is (curiously) 
    512  * missing from Mt. Fuji, Table 57.  It _is_ mentioned in Mt. Fuji
    513  * Table 377 as an MMC command for SCSi devices though...  Most ATAPI
    514  * drives support it. */
    515 #define GPCMD_SET_SPEED			    0xbb
    516 /* This seems to be a SCSI specific CD-ROM opcode 
    517  * to play data at track/index */
    518 #define GPCMD_PLAYAUDIO_TI		    0x48
    519 /*
    520  * From MS Media Status Notification Support Specification. For
    521  * older drives only.
    522  */
    523 #define GPCMD_GET_MEDIA_STATUS		    0xda
    524 
    525 /* Mode page codes for mode sense/set */
    526 #define GPMODE_VENDOR_PAGE		0x00
    527 #define GPMODE_R_W_ERROR_PAGE		0x01
    528 #define GPMODE_WRITE_PARMS_PAGE		0x05
    529 #define GPMODE_WCACHING_PAGE		0x08
    530 #define GPMODE_AUDIO_CTL_PAGE		0x0e
    531 #define GPMODE_POWER_PAGE		0x1a
    532 #define GPMODE_FAULT_FAIL_PAGE		0x1c
    533 #define GPMODE_TO_PROTECT_PAGE		0x1d
    534 #define GPMODE_CAPABILITIES_PAGE	0x2a
    535 #define GPMODE_ALL_PAGES		0x3f
    536 /* Not in Mt. Fuji, but in ATAPI 2.6 -- deprecated now in favor
    537  * of MODE_SENSE_POWER_PAGE */
    538 #define GPMODE_CDROM_PAGE		0x0d
    539 
    540 
    541 
    542 /* DVD struct types */
    543 #define DVD_STRUCT_PHYSICAL	0x00
    544 #define DVD_STRUCT_COPYRIGHT	0x01
    545 #define DVD_STRUCT_DISCKEY	0x02
    546 #define DVD_STRUCT_BCA		0x03
    547 #define DVD_STRUCT_MANUFACT	0x04
    548 
    549 struct dvd_layer {
    550 	__u8 book_version	: 4;
    551 	__u8 book_type		: 4;
    552 	__u8 min_rate		: 4;
    553 	__u8 disc_size		: 4;
    554 	__u8 layer_type		: 4;
    555 	__u8 track_path		: 1;
    556 	__u8 nlayers		: 2;
    557 	__u8 track_density	: 4;
    558 	__u8 linear_density	: 4;
    559 	__u8 bca		: 1;
    560 	__u32 start_sector;
    561 	__u32 end_sector;
    562 	__u32 end_sector_l0;
    563 };
    564 
    565 #define DVD_LAYERS	4
    566 
    567 struct dvd_physical {
    568 	__u8 type;
    569 	__u8 layer_num;
    570 	struct dvd_layer layer[DVD_LAYERS];
    571 };
    572 
    573 struct dvd_copyright {
    574 	__u8 type;
    575 
    576 	__u8 layer_num;
    577 	__u8 cpst;
    578 	__u8 rmi;
    579 };
    580 
    581 struct dvd_disckey {
    582 	__u8 type;
    583 
    584 	unsigned agid		: 2;
    585 	__u8 value[2048];
    586 };
    587 
    588 struct dvd_bca {
    589 	__u8 type;
    590 
    591 	int len;
    592 	__u8 value[188];
    593 };
    594 
    595 struct dvd_manufact {
    596 	__u8 type;
    597 
    598 	__u8 layer_num;
    599 	int len;
    600 	__u8 value[2048];
    601 };
    602 
    603 typedef union {
    604 	__u8 type;
    605 
    606 	struct dvd_physical	physical;
    607 	struct dvd_copyright	copyright;
    608 	struct dvd_disckey	disckey;
    609 	struct dvd_bca		bca;
    610 	struct dvd_manufact	manufact;
    611 } dvd_struct;
    612 
    613 /*
    614  * DVD authentication ioctl
    615  */
    616 
    617 /* Authentication states */
    618 #define DVD_LU_SEND_AGID	0
    619 #define DVD_HOST_SEND_CHALLENGE	1
    620 #define DVD_LU_SEND_KEY1	2
    621 #define DVD_LU_SEND_CHALLENGE	3
    622 #define DVD_HOST_SEND_KEY2	4
    623 
    624 /* Termination states */
    625 #define DVD_AUTH_ESTABLISHED	5
    626 #define DVD_AUTH_FAILURE	6
    627 
    628 /* Other functions */
    629 #define DVD_LU_SEND_TITLE_KEY	7
    630 #define DVD_LU_SEND_ASF		8
    631 #define DVD_INVALIDATE_AGID	9
    632 #define DVD_LU_SEND_RPC_STATE	10
    633 #define DVD_HOST_SEND_RPC_STATE	11
    634 
    635 /* State data */
    636 typedef __u8 dvd_key[5];		/* 40-bit value, MSB is first elem. */
    637 typedef __u8 dvd_challenge[10];	/* 80-bit value, MSB is first elem. */
    638 
    639 struct dvd_lu_send_agid {
    640 	__u8 type;
    641 	unsigned agid		: 2;
    642 };
    643 
    644 struct dvd_host_send_challenge {
    645 	__u8 type;
    646 	unsigned agid		: 2;
    647 
    648 	dvd_challenge chal;
    649 };
    650 
    651 struct dvd_send_key {
    652 	__u8 type;
    653 	unsigned agid		: 2;
    654 
    655 	dvd_key key;
    656 };
    657 
    658 struct dvd_lu_send_challenge {
    659 	__u8 type;
    660 	unsigned agid		: 2;
    661 
    662 	dvd_challenge chal;
    663 };
    664 
    665 #define DVD_CPM_NO_COPYRIGHT	0
    666 #define DVD_CPM_COPYRIGHTED	1
    667 
    668 #define DVD_CP_SEC_NONE		0
    669 #define DVD_CP_SEC_EXIST	1
    670 
    671 #define DVD_CGMS_UNRESTRICTED	0
    672 #define DVD_CGMS_SINGLE		2
    673 #define DVD_CGMS_RESTRICTED	3
    674 
    675 struct dvd_lu_send_title_key {
    676 	__u8 type;
    677 	unsigned agid		: 2;
    678 
    679 	dvd_key title_key;
    680 	int lba;
    681 	unsigned cpm		: 1;
    682 	unsigned cp_sec		: 1;
    683 	unsigned cgms		: 2;
    684 };
    685 
    686 struct dvd_lu_send_asf {
    687 	__u8 type;
    688 	unsigned agid		: 2;
    689 
    690 	unsigned asf		: 1;
    691 };
    692 
    693 struct dvd_host_send_rpcstate {
    694 	__u8 type;
    695 	__u8 pdrc;
    696 };
    697 
    698 struct dvd_lu_send_rpcstate {
    699 	__u8 type		: 2;
    700 	__u8 vra		: 3;
    701 	__u8 ucca		: 3;
    702 	__u8 region_mask;
    703 	__u8 rpc_scheme;
    704 };
    705 
    706 typedef union {
    707 	__u8 type;
    708 
    709 	struct dvd_lu_send_agid		lsa;
    710 	struct dvd_host_send_challenge	hsc;
    711 	struct dvd_send_key		lsk;
    712 	struct dvd_lu_send_challenge	lsc;
    713 	struct dvd_send_key		hsk;
    714 	struct dvd_lu_send_title_key	lstk;
    715 	struct dvd_lu_send_asf		lsasf;
    716 	struct dvd_host_send_rpcstate	hrpcs;
    717 	struct dvd_lu_send_rpcstate	lrpcs;
    718 } dvd_authinfo;
    719 
    720 struct request_sense {
    721 #if defined(__BIG_ENDIAN_BITFIELD)
    722 	__u8 valid		: 1;
    723 	__u8 error_code		: 7;
    724 #elif defined(__LITTLE_ENDIAN_BITFIELD)
    725 	__u8 error_code		: 7;
    726 	__u8 valid		: 1;
    727 #endif
    728 	__u8 segment_number;
    729 #if defined(__BIG_ENDIAN_BITFIELD)
    730 	__u8 reserved1		: 2;
    731 	__u8 ili		: 1;
    732 	__u8 reserved2		: 1;
    733 	__u8 sense_key		: 4;
    734 #elif defined(__LITTLE_ENDIAN_BITFIELD)
    735 	__u8 sense_key		: 4;
    736 	__u8 reserved2		: 1;
    737 	__u8 ili		: 1;
    738 	__u8 reserved1		: 2;
    739 #endif
    740 	__u8 information[4];
    741 	__u8 add_sense_len;
    742 	__u8 command_info[4];
    743 	__u8 asc;
    744 	__u8 ascq;
    745 	__u8 fruc;
    746 	__u8 sks[3];
    747 	__u8 asb[46];
    748 };
    749 
    750 /*
    751  * feature profile
    752  */
    753 #define CDF_RWRT	0x0020	/* "Random Writable" */
    754 #define CDF_HWDM	0x0024	/* "Hardware Defect Management" */
    755 #define CDF_MRW 	0x0028
    756 
    757 /*
    758  * media status bits
    759  */
    760 #define CDM_MRW_NOTMRW			0
    761 #define CDM_MRW_BGFORMAT_INACTIVE	1
    762 #define CDM_MRW_BGFORMAT_ACTIVE		2
    763 #define CDM_MRW_BGFORMAT_COMPLETE	3
    764 
    765 /*
    766  * mrw address spaces
    767  */
    768 #define MRW_LBA_DMA			0
    769 #define MRW_LBA_GAA			1
    770 
    771 /*
    772  * mrw mode pages (first is deprecated) -- probed at init time and
    773  * cdi->mrw_mode_page is set
    774  */
    775 #define MRW_MODE_PC_PRE1		0x2c
    776 #define MRW_MODE_PC			0x03
    777 
    778 struct mrw_feature_desc {
    779 	__be16 feature_code;
    780 #if defined(__BIG_ENDIAN_BITFIELD)
    781 	__u8 reserved1		: 2;
    782 	__u8 feature_version	: 4;
    783 	__u8 persistent		: 1;
    784 	__u8 curr		: 1;
    785 #elif defined(__LITTLE_ENDIAN_BITFIELD)
    786 	__u8 curr		: 1;
    787 	__u8 persistent		: 1;
    788 	__u8 feature_version	: 4;
    789 	__u8 reserved1		: 2;
    790 #endif
    791 	__u8 add_len;
    792 #if defined(__BIG_ENDIAN_BITFIELD)
    793 	__u8 reserved2		: 7;
    794 	__u8 write		: 1;
    795 #elif defined(__LITTLE_ENDIAN_BITFIELD)
    796 	__u8 write		: 1;
    797 	__u8 reserved2		: 7;
    798 #endif
    799 	__u8 reserved3;
    800 	__u8 reserved4;
    801 	__u8 reserved5;
    802 };
    803 
    804 /* cf. mmc4r02g.pdf 5.3.10 Random Writable Feature (0020h) pg 197 of 635 */
    805 struct rwrt_feature_desc {
    806 	__be16 feature_code;
    807 #if defined(__BIG_ENDIAN_BITFIELD)
    808 	__u8 reserved1		: 2;
    809 	__u8 feature_version	: 4;
    810 	__u8 persistent		: 1;
    811 	__u8 curr		: 1;
    812 #elif defined(__LITTLE_ENDIAN_BITFIELD)
    813 	__u8 curr		: 1;
    814 	__u8 persistent		: 1;
    815 	__u8 feature_version	: 4;
    816 	__u8 reserved1		: 2;
    817 #endif
    818 	__u8 add_len;
    819 	__u32 last_lba;
    820 	__u32 block_size;
    821 	__u16 blocking;
    822 #if defined(__BIG_ENDIAN_BITFIELD)
    823 	__u8 reserved2		: 7;
    824 	__u8 page_present	: 1;
    825 #elif defined(__LITTLE_ENDIAN_BITFIELD)
    826 	__u8 page_present	: 1;
    827 	__u8 reserved2		: 7;
    828 #endif
    829 	__u8 reserved3;
    830 };
    831 
    832 typedef struct {
    833 	__be16 disc_information_length;
    834 #if defined(__BIG_ENDIAN_BITFIELD)
    835 	__u8 reserved1			: 3;
    836         __u8 erasable			: 1;
    837         __u8 border_status		: 2;
    838         __u8 disc_status		: 2;
    839 #elif defined(__LITTLE_ENDIAN_BITFIELD)
    840         __u8 disc_status		: 2;
    841         __u8 border_status		: 2;
    842         __u8 erasable			: 1;
    843 	__u8 reserved1			: 3;
    844 #else
    845 #error "Please fix <asm/byteorder.h>"
    846 #endif
    847 	__u8 n_first_track;
    848 	__u8 n_sessions_lsb;
    849 	__u8 first_track_lsb;
    850 	__u8 last_track_lsb;
    851 #if defined(__BIG_ENDIAN_BITFIELD)
    852 	__u8 did_v			: 1;
    853         __u8 dbc_v			: 1;
    854         __u8 uru			: 1;
    855         __u8 reserved2			: 2;
    856 	__u8 dbit			: 1;
    857 	__u8 mrw_status			: 2;
    858 #elif defined(__LITTLE_ENDIAN_BITFIELD)
    859 	__u8 mrw_status			: 2;
    860 	__u8 dbit			: 1;
    861         __u8 reserved2			: 2;
    862         __u8 uru			: 1;
    863         __u8 dbc_v			: 1;
    864 	__u8 did_v			: 1;
    865 #endif
    866 	__u8 disc_type;
    867 	__u8 n_sessions_msb;
    868 	__u8 first_track_msb;
    869 	__u8 last_track_msb;
    870 	__u32 disc_id;
    871 	__u32 lead_in;
    872 	__u32 lead_out;
    873 	__u8 disc_bar_code[8];
    874 	__u8 reserved3;
    875 	__u8 n_opc;
    876 } disc_information;
    877 
    878 typedef struct {
    879 	__be16 track_information_length;
    880 	__u8 track_lsb;
    881 	__u8 session_lsb;
    882 	__u8 reserved1;
    883 #if defined(__BIG_ENDIAN_BITFIELD)
    884 	__u8 reserved2			: 2;
    885         __u8 damage			: 1;
    886         __u8 copy			: 1;
    887         __u8 track_mode			: 4;
    888 	__u8 rt				: 1;
    889 	__u8 blank			: 1;
    890 	__u8 packet			: 1;
    891 	__u8 fp				: 1;
    892 	__u8 data_mode			: 4;
    893 	__u8 reserved3			: 6;
    894 	__u8 lra_v			: 1;
    895 	__u8 nwa_v			: 1;
    896 #elif defined(__LITTLE_ENDIAN_BITFIELD)
    897         __u8 track_mode			: 4;
    898         __u8 copy			: 1;
    899         __u8 damage			: 1;
    900 	__u8 reserved2			: 2;
    901 	__u8 data_mode			: 4;
    902 	__u8 fp				: 1;
    903 	__u8 packet			: 1;
    904 	__u8 blank			: 1;
    905 	__u8 rt				: 1;
    906 	__u8 nwa_v			: 1;
    907 	__u8 lra_v			: 1;
    908 	__u8 reserved3			: 6;
    909 #endif
    910 	__be32 track_start;
    911 	__be32 next_writable;
    912 	__be32 free_blocks;
    913 	__be32 fixed_packet_size;
    914 	__be32 track_size;
    915 	__be32 last_rec_address;
    916 } track_information;
    917 
    918 struct feature_header {
    919 	__u32 data_len;
    920 	__u8 reserved1;
    921 	__u8 reserved2;
    922 	__u16 curr_profile;
    923 };
    924 
    925 struct mode_page_header {
    926 	__be16 mode_data_length;
    927 	__u8 medium_type;
    928 	__u8 reserved1;
    929 	__u8 reserved2;
    930 	__u8 reserved3;
    931 	__be16 desc_length;
    932 };
    933 
    934 /* removable medium feature descriptor */
    935 struct rm_feature_desc {
    936 	__be16 feature_code;
    937 #if defined(__BIG_ENDIAN_BITFIELD)
    938 	__u8 reserved1:2;
    939 	__u8 feature_version:4;
    940 	__u8 persistent:1;
    941 	__u8 curr:1;
    942 #elif defined(__LITTLE_ENDIAN_BITFIELD)
    943 	__u8 curr:1;
    944 	__u8 persistent:1;
    945 	__u8 feature_version:4;
    946 	__u8 reserved1:2;
    947 #endif
    948 	__u8 add_len;
    949 #if defined(__BIG_ENDIAN_BITFIELD)
    950 	__u8 mech_type:3;
    951 	__u8 load:1;
    952 	__u8 eject:1;
    953 	__u8 pvnt_jmpr:1;
    954 	__u8 dbml:1;
    955 	__u8 lock:1;
    956 #elif defined(__LITTLE_ENDIAN_BITFIELD)
    957 	__u8 lock:1;
    958 	__u8 dbml:1;
    959 	__u8 pvnt_jmpr:1;
    960 	__u8 eject:1;
    961 	__u8 load:1;
    962 	__u8 mech_type:3;
    963 #endif
    964 	__u8 reserved2;
    965 	__u8 reserved3;
    966 	__u8 reserved4;
    967 };
    968 
    969 #endif /* _LINUX_CDROM_H */