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-rw-r--r--include/linux/cdrom.h392
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diff --git a/include/linux/cdrom.h b/include/linux/cdrom.h
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+/****************************************************************************************
+ * *
+ * general (not only SCSI) header library for linux CDROM drivers *
+ * (C) 1992 David Giller rafetmad@oxy.edu *
+ * 1994 Eberhard Moenkeberg emoenke@gwdg.de ("read audio" and some other stuff) *
+ * *
+ * <linux/cdrom.h> -- CD-ROM IOCTLs and structs *
+ * *
+ ****************************************************************************************/
+
+#ifndef _LINUX_CDROM_H
+#define _LINUX_CDROM_H
+
+/*
+ * some fix numbers
+ */
+#define CD_MINS 74 /* max. minutes per CD */
+#define CD_SECS 60 /* seconds per minute */
+#define CD_FRAMES 75 /* frames per second */
+#define CD_CHUNK_SIZE 24 /* lowest-level "data bytes piece" */
+#define CD_NUM_OF_CHUNKS 98 /* chunks per frame */
+#define CD_FRAMESIZE 2048 /* bytes per frame, cooked mode */
+#define CD_FRAMESIZE_RAW0 2336 /* bytes per frame, "raw" mode */
+#define CD_FRAMESIZE_XA 2340 /* bytes per frame, "xa" mode */
+#define CD_FRAMESIZE_RAW 2352 /* bytes per frame, "raw" mode */
+#define CD_FRAMESIZE_SUB 96 /* subchannel data size */
+#define CD_BLOCK_OFFSET 150 /* offset of first logical frame */
+#define CD_XA_HEAD 12 /* header size of XA frame */
+#define CD_XA_TAIL 280 /* tail size of XA frame */
+
+/*
+ *
+ * For IOCTL calls, we will commandeer byte 0x53, or 'S'.
+ *
+ */
+
+/*
+ * CD-ROM-specific SCSI command opcodes
+ */
+
+/*
+ * Group 2 (10-byte). All of these are called 'optional' by SCSI-II.
+ */
+
+#define SCMD_READ_TOC 0x43 /* read table of contents */
+#define SCMD_PLAYAUDIO_MSF 0x47 /* play data at time offset */
+#define SCMD_PLAYAUDIO_TI 0x48 /* play data at track/index */
+#define SCMD_PAUSE_RESUME 0x4B /* pause/resume audio */
+#define SCMD_READ_SUBCHANNEL 0x42 /* read SC info on playing disc */
+#define SCMD_PLAYAUDIO10 0x45 /* play data at logical block */
+#define SCMD_READ_HEADER 0x44 /* read TOC header */
+
+/*
+ * Group 5
+ */
+
+#define SCMD_PLAYAUDIO12 0xA5 /* play data at logical block */
+#define SCMD_PLAYTRACK_REL12 0xA9 /* play track at relative offset*/
+
+/*
+ * Group 6 Commands
+ */
+
+#define SCMD_CD_PLAYBACK_CONTROL 0xC9 /* Sony vendor-specific audio */
+#define SCMD_CD_PLAYBACK_STATUS 0xC4 /* control opcodes. info please!*/
+
+/*
+ * CD-ROM capacity structure.
+ */
+
+struct scsi_capacity
+ {
+ u_long capacity;
+ u_long lbasize;
+ };
+
+/*
+ * CD-ROM MODE_SENSE/MODE_SELECT parameters
+ */
+
+#define ERR_RECOVERY_PARMS 0x01
+#define DISCO_RECO_PARMS 0x02
+#define FORMAT_PARMS 0x03
+#define GEOMETRY_PARMS 0x04
+#define CERTIFICATION_PARMS 0x06
+#define CACHE_PARMS 0x38
+
+/*
+ * standard mode-select header prepended to all mode-select commands
+ */
+
+struct ccs_modesel_head
+ {
+ u_char _r1; /* reserved */
+ u_char medium; /* device-specific medium type */
+ u_char _r2; /* reserved */
+ u_char block_desc_length; /* block descriptor length */
+ u_char density; /* device-specific density code */
+ u_char number_blocks_hi; /* number of blocks in this block desc */
+ u_char number_blocks_med;
+ u_char number_blocks_lo;
+ u_char _r3;
+ u_char block_length_hi; /* block length for blocks in this desc */
+ u_short block_length;
+ };
+
+/*
+ * error recovery parameters
+ */
+
+struct ccs_err_recovery
+ {
+ u_char _r1 : 2; /* reserved */
+ u_char page_code : 6; /* page code */
+ u_char page_length; /* page length */
+ u_char awre : 1; /* auto write realloc enabled */
+ u_char arre : 1; /* auto read realloc enabled */
+ u_char tb : 1; /* transfer block */
+ u_char rc : 1; /* read continuous */
+ u_char eec : 1; /* enable early correction */
+ u_char per : 1; /* post error */
+ u_char dte : 1; /* disable transfer on error */
+ u_char dcr : 1; /* disable correction */
+ u_char retry_count; /* error retry count */
+ u_char correction_span; /* largest recov. to be attempted, bits */
+ u_char head_offset_count; /* head offset (2's C) for each retry */
+ u_char strobe_offset_count; /* data strobe " */
+ u_char recovery_time_limit; /* time limit on recovery attempts */
+};
+
+/*
+ * disco/reco parameters
+ */
+
+struct ccs_disco_reco
+ {
+ u_char _r1 : 2; /* reserved */
+ u_char page_code : 6; /* page code */
+ u_char page_length; /* page length */
+ u_char buffer_full_ratio; /* write buffer reconnect threshold */
+ u_char buffer_empty_ratio; /* read " */
+ u_short bus_inactivity_limit; /* limit on bus inactivity time */
+ u_short disconnect_time_limit; /* minimum disconnect time */
+ u_short connect_time_limit; /* minimum connect time */
+ u_short _r2; /* reserved */
+};
+
+/*
+ * drive geometry parameters
+ */
+
+struct ccs_geometry
+ {
+ u_char _r1 : 2; /* reserved */
+ u_char page_code : 6; /* page code */
+ u_char page_length; /* page length */
+ u_char cyl_ub; /* #cyls */
+ u_char cyl_mb;
+ u_char cyl_lb;
+ u_char heads; /* #heads */
+ u_char precomp_cyl_ub; /* precomp start */
+ u_char precomp_cyl_mb;
+ u_char precomp_cyl_lb;
+ u_char current_cyl_ub; /* reduced current start */
+ u_char current_cyl_mb;
+ u_char current_cyl_lb;
+ u_short step_rate; /* stepping motor rate */
+ u_char landing_cyl_ub; /* landing zone */
+ u_char landing_cyl_mb;
+ u_char landing_cyl_lb;
+ u_char _r2;
+ u_char _r3;
+ u_char _r4;
+ };
+
+/*
+ * cache parameters
+ */
+
+struct ccs_cache
+ {
+ u_char _r1 : 2; /* reserved */
+ u_char page_code : 6; /* page code */
+ u_char page_length; /* page length */
+ u_char mode; /* cache control byte */
+ u_char threshold; /* prefetch threshold */
+ u_char max_prefetch; /* maximum prefetch size */
+ u_char max_multiplier; /* maximum prefetch multiplier */
+ u_char min_prefetch; /* minimum prefetch size */
+ u_char min_multiplier; /* minimum prefetch multiplier */
+ u_char _r2[8];
+ };
+
+/*
+ * CDROM IOCTL structures
+ */
+
+struct cdrom_msf
+ {
+ u_char cdmsf_min0; /* start minute */
+ u_char cdmsf_sec0; /* start second */
+ u_char cdmsf_frame0; /* start frame */
+ u_char cdmsf_min1; /* end minute */
+ u_char cdmsf_sec1; /* end second */
+ u_char cdmsf_frame1; /* end frame */
+ };
+
+struct cdrom_ti
+ {
+ u_char cdti_trk0; /* start track */
+ u_char cdti_ind0; /* start index */
+ u_char cdti_trk1; /* end track */
+ u_char cdti_ind1; /* end index */
+ };
+
+struct cdrom_tochdr
+ {
+ u_char cdth_trk0; /* start track */
+ u_char cdth_trk1; /* end track */
+ };
+
+struct cdrom_tocentry
+ {
+ u_char cdte_track;
+ u_char cdte_adr :4;
+ u_char cdte_ctrl :4;
+ u_char cdte_format;
+ union
+ {
+ struct
+ {
+ u_char minute;
+ u_char second;
+ u_char frame;
+ } msf;
+ int lba;
+ } cdte_addr;
+ u_char cdte_datamode;
+ };
+
+/*
+ * CD-ROM address types (cdrom_tocentry.cdte_format)
+ */
+#define CDROM_LBA 0x01 /* "logical block": first frame is #0 */
+#define CDROM_MSF 0x02 /* "minute-second-frame": binary, not bcd here! */
+
+/*
+ * bit to tell whether track is data or audio
+ */
+
+#define CDROM_DATA_TRACK 0x04
+
+/*
+ * The leadout track is always 0xAA, regardless of # of tracks on disc
+ */
+
+#define CDROM_LEADOUT 0xAA
+
+struct cdrom_subchnl
+ {
+ u_char cdsc_format;
+ u_char cdsc_audiostatus;
+ u_char cdsc_adr: 4;
+ u_char cdsc_ctrl: 4;
+ u_char cdsc_trk;
+ u_char cdsc_ind;
+ union
+ {
+ struct
+ {
+ u_char minute;
+ u_char second;
+ u_char frame;
+ } msf;
+ int lba;
+ } cdsc_absaddr;
+ union
+ {
+ struct
+ {
+ u_char minute;
+ u_char second;
+ u_char frame;
+ } msf;
+ int lba;
+ } cdsc_reladdr;
+ };
+
+/*
+ * return value from READ SUBCHANNEL DATA
+ */
+
+#define CDROM_AUDIO_INVALID 0x00 /* audio status not supported */
+#define CDROM_AUDIO_PLAY 0x11 /* audio play operation in progress */
+#define CDROM_AUDIO_PAUSED 0x12 /* audio play operation paused */
+#define CDROM_AUDIO_COMPLETED 0x13 /* audio play successfully completed */
+#define CDROM_AUDIO_ERROR 0x14 /* audio play stopped due to error */
+#define CDROM_AUDIO_NO_STATUS 0x15 /* no current audio status to return */
+
+struct cdrom_volctrl
+ {
+ u_char channel0;
+ u_char channel1;
+ u_char channel2;
+ u_char channel3;
+ };
+
+struct cdrom_read
+ {
+ int cdread_lba;
+ caddr_t cdread_bufaddr;
+ int cdread_buflen;
+ };
+
+/*
+ * preliminary extensions for transferring audio frames
+ * currently used by sbpcd.c
+ * (still may change if other drivers will use it, too):
+ */
+struct cdrom_read_audio
+ {
+ union
+ {
+ struct
+ {
+ u_char minute;
+ u_char second;
+ u_char frame;
+ } msf;
+ int lba;
+ } addr; /* frame address */
+ u_char addr_format; /* CDROM_LBA or CDROM_MSF */
+ int nframes; /* number of 2352-byte-frames to read at once, limited by the drivers */
+ u_char *buf; /* frame buffer (size: nframes*2352 bytes) */
+ };
+
+#ifdef FIVETWELVE
+#define CDROM_MODE1_SIZE 512
+#else
+#define CDROM_MODE1_SIZE 2048
+#endif FIVETWELVE
+#define CDROM_MODE2_SIZE 2336
+
+/*
+ * CD-ROM IOCTL commands
+ */
+
+#define CDROMPAUSE 0x5301 /* pause */
+#define CDROMRESUME 0x5302 /* resume */
+
+#define CDROMPLAYMSF 0x5303 /* (struct cdrom_msf) */
+ /* SCMD_PLAY_AUDIO_MSF */
+
+#define CDROMPLAYTRKIND 0x5304 /* (struct cdrom_ti) */
+ /* SCMD_PLAY_AUDIO_TI */
+
+#define CDROMREADTOCHDR 0x5305 /* (struct cdrom_tochdr) */
+ /* read the TOC header */
+#define CDROMREADTOCENTRY 0x5306 /* (struct cdrom_tocentry) */
+ /* read a TOC entry */
+
+#define CDROMSTOP 0x5307 /* stop the drive motor */
+#define CDROMSTART 0x5308 /* turn the motor on */
+
+#define CDROMEJECT 0x5309 /* eject CD-ROM media */
+
+#define CDROMVOLCTRL 0x530a /* (struct cdrom_volctrl) */
+ /* volume control */
+
+#define CDROMSUBCHNL 0x530b /* (struct cdrom_subchnl) */
+ /* read Q sub-channel data */
+
+#define CDROMREADMODE2 0x530c /* (struct cdrom_read) */
+ /* read type-2 data (not suppt) */
+
+#define CDROMREADMODE1 0x530d /* (struct cdrom_read) */
+ /* read type-1 data */
+/*
+ * preliminary extension for transferring audio frames
+ * currently used by cdu31a.c and sbpcd.c
+ * (still may change if other drivers will use it, too):
+ */
+#define CDROMREADAUDIO 0x530e /* (struct cdrom_read_audio) */
+/*
+ * preliminary extension for enable (1) / disable (0) auto-ejecting
+ * currently used by sbpcd.c
+ * (still may change if other drivers will use it, too):
+ */
+#define CDROMEJECT_SW 0x530f /* arg: 0 or 1 */
+
+#endif _LINUX_CDROM_H
+
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