/*      $OpenBSD: cd.h,v 1.28 2019/11/29 14:06:21 krw Exp $     */
/*      $NetBSD: scsi_cd.h,v 1.6 1996/03/19 03:06:39 mycroft Exp $      */

/*
 * Written by Julian Elischer (julian@tfs.com)
 * for TRW Financial Systems.
 *
 * TRW Financial Systems, in accordance with their agreement with Carnegie
 * Mellon University, makes this software available to CMU to distribute
 * or use in any manner that they see fit as long as this message is kept with
 * the software. For this reason TFS also grants any other persons or
 * organisations permission to use or modify this software.
 *
 * TFS supplies this software to be publicly redistributed
 * on the understanding that TFS is not responsible for the correct
 * functioning of this software in any circumstances.
 *
 * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
 */
#ifndef _SCSI_CD_H
#define _SCSI_CD_H

/*
 *      Define two bits always in the same place in byte 2 (flag byte)
 */
#define CD_RELADDR      0x01
#define CD_MSF          0x02

/*
 * SCSI command format
 */

struct scsi_blank {
        u_int8_t opcode;
        u_int8_t byte2;
#define BLANK_DISC      0
#define BLANK_MINIMAL   1
        u_int8_t addr[4];
        u_int8_t unused[5];
        u_int8_t control;
};

struct scsi_close_track {
        u_int8_t opcode;
        u_int8_t flags;
#define CT_IMMED        1
        u_int8_t closefunc;
#define CT_CLOSE_TRACK  1
#define CT_CLOSE_SESS   2
#define CT_CLOSE_BORDER 3
        u_int8_t unused;
        u_int8_t track[2];
        u_int8_t unused1[3];
        u_int8_t control;
};

struct scsi_pause {
        u_int8_t opcode;
        u_int8_t byte2;
        u_int8_t unused[6];
        u_int8_t resume;
        u_int8_t control;
};
#define PA_PAUSE        1
#define PA_RESUME       0

struct scsi_play_msf {
        u_int8_t opcode;
        u_int8_t byte2;
        u_int8_t unused;
        u_int8_t start_m;
        u_int8_t start_s;
        u_int8_t start_f;
        u_int8_t end_m;
        u_int8_t end_s;
        u_int8_t end_f;
        u_int8_t control;
};

struct scsi_play_track {
        u_int8_t opcode;
        u_int8_t byte2;
        u_int8_t unused[2];
        u_int8_t start_track;
        u_int8_t start_index;
        u_int8_t unused1;
        u_int8_t end_track;
        u_int8_t end_index;
        u_int8_t control;
};

struct scsi_play {
        u_int8_t opcode;
        u_int8_t byte2;
        u_int8_t blk_addr[4];
        u_int8_t unused;
        u_int8_t xfer_len[2];
        u_int8_t control;
};

struct scsi_play_big {
        u_int8_t opcode;
        u_int8_t byte2; /* same as above */
        u_int8_t blk_addr[4];
        u_int8_t xfer_len[4];
        u_int8_t unused;
        u_int8_t control;
};

struct scsi_play_rel_big {
        u_int8_t opcode;
        u_int8_t byte2; /* same as above */
        u_int8_t blk_addr[4];
        u_int8_t xfer_len[4];
        u_int8_t track;
        u_int8_t control;
};

struct scsi_read_header {
        u_int8_t opcode;
        u_int8_t byte2;
        u_int8_t blk_addr[4];
        u_int8_t unused;
        u_int8_t data_len[2];
        u_int8_t control;
};

struct scsi_read_subchannel {
        u_int8_t opcode;
        u_int8_t byte2;
        u_int8_t byte3;
#define SRS_SUBQ        0x40
        u_int8_t subchan_format;
        u_int8_t unused[2];
        u_int8_t track;
        u_int8_t data_len[2];
        u_int8_t control;
};

struct scsi_read_toc {
        u_int8_t opcode;
        u_int8_t byte2;
        u_int8_t unused[4];
        u_int8_t from_track;
        u_int8_t data_len[2];
        u_int8_t control;
};

struct scsi_read_track_info {
        u_int8_t opcode;
        u_int8_t addrtype;
#define RTI_LBA         0
#define RTI_TRACK       1
#define RTI_BORDER      2
        u_int8_t addr[4];
        u_int8_t unused;
        u_int8_t data_len[2];
        u_int8_t control;
};

struct scsi_load_unload {
        u_int8_t opcode;
        u_int8_t reserved;
#define IMMED   0x1
        u_int8_t reserved2[2];
        u_int8_t options;
#define START   0x1
#define LOUNLO  0x2
        u_int8_t reserved4[3];
        u_int8_t slot;
        u_int8_t reserved5[2];
        u_int8_t control;
};

struct scsi_set_cd_speed {
        u_int8_t opcode;
        u_int8_t rotation;
#define ROTATE_CLV 0
#define ROTATE_CAV 1
        u_int8_t read[2];
        u_int8_t write[2];
        u_int8_t reserved[5];
        u_int8_t control;
};

/*
 * Opcodes
 */

#define READ_SUBCHANNEL         0x42    /* cdrom read Subchannel */
#define READ_TOC                0x43    /* cdrom read TOC */
#define READ_HEADER             0x44    /* cdrom read header */
#define PLAY                    0x45    /* cdrom play 'play audio' mode */
#define PLAY_MSF                0x47    /* cdrom play Min,Sec,Frames mode */
#define PLAY_TRACK              0x48    /* cdrom play track/index mode */
#define PLAY_TRACK_REL          0x49    /* cdrom play track/index mode */
#define PAUSE                   0x4b    /* cdrom pause in 'play audio' mode */
#define READ_TRACK_INFO         0x52    /* read track/rzone info */
#define CLOSE_TRACK             0x5b    /* close track/rzone/session/border */
#define BLANK                   0xa1    /* cdrom blank */
#define PLAY_BIG                0xa5    /* cdrom pause in 'play audio' mode */
#define LOAD_UNLOAD             0xa6    /* cdrom load/unload media */
#define PLAY_TRACK_REL_BIG      0xa9    /* cdrom play track/index mode */
#define SET_CD_SPEED            0xbb    /* set cdrom read/write speed */

/*
 * Mode pages
 */

#define ERR_RECOVERY_PAGE       0x01
#define WRITE_PARAM_PAGE        0x05
#define AUDIO_PAGE              0x0e
#define CDVD_CAPABILITIES_PAGE  0x2a

struct cd_audio_page {
        u_int8_t page_code;
#define CD_PAGE_CODE    0x3F
#define CD_PAGE_PS      0x80
        u_int8_t param_len;
        u_int8_t flags;
#define         CD_PA_SOTC      0x02
#define         CD_PA_IMMED     0x04
        u_int8_t unused[2];
        u_int8_t format_lba;
#define         CD_PA_FORMAT_LBA        0x0F
#define         CD_PA_APR_VALID 0x80
        u_int8_t lb_per_sec[2];
        struct  port_control {
                u_int8_t channels;
#define CHANNEL 0x0F
#define CHANNEL_0 1
#define CHANNEL_1 2
#define CHANNEL_2 4
#define CHANNEL_3 8
#define LEFT_CHANNEL    CHANNEL_0
#define RIGHT_CHANNEL   CHANNEL_1
#define MUTE_CHANNEL    0x0
#define BOTH_CHANNEL    LEFT_CHANNEL | RIGHT_CHANNEL
                u_int8_t volume;
        } port[4];
#define LEFT_PORT       0
#define RIGHT_PORT      1
};

/*
 * There are 2352 bytes in a CD digital audio frame.  One frame is 1/75 of a
 * second, at 44.1kHz sample rate, 16 bits/sample, 2 channels.
 *
 * The frame data have the two channels interleaved, with the left
 * channel first.  Samples are little endian 16-bit signed values.
 */
#define CD_DA_BLKSIZ            2352    /* # bytes in CD-DA frame */
#define CD_NORMAL_DENSITY_CODE  0x00    /* from Toshiba CD-ROM specs */
#define CD_DA_DENSITY_CODE      0x82    /* from Toshiba CD-ROM specs */

struct scsi_read_dvd_structure {
        u_int8_t        opcode;         /* GPCMD_READ_DVD_STRUCTURE */
        u_int8_t        reserved;
        u_int8_t        address[4];
        u_int8_t        layer;
        u_int8_t        format;
        u_int8_t        length[2];
        u_int8_t        agid;           /* bottom 6 bits reserved */
        u_int8_t        control;
};

struct scsi_read_dvd_structure_data {
        u_int8_t        len[2];         /* Big-endian length of valid data. */
        u_int8_t        reserved[2];
        u_int8_t        data[2048];
};

#endif /* _SCSI_CD_H */