/*      $NetBSD: mcdreg.h,v 1.9 2000/06/08 18:22:16 cgd Exp $   */

/*
* Copyright 1993 by Holger Veit (data part)
* Copyright 1993 by Brian Moore (audio part)
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
*    notice, this list of conditions and the following disclaimer in the
*    documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This software was developed by Holger Veit and Brian Moore
*      for use with "386BSD" and similar operating systems.
*    "Similar operating systems" includes mainly non-profit oriented
*    systems for research and education, including but not restricted to
*    "NetBSD", "FreeBSD", "Mach" (by CMU).
* 4. Neither the name of the developer(s) nor the name "386BSD"
*    may be used to endorse or promote products derived from this
*    software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPER(S) ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE DEVELOPER(S) BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This file contains definitions for some cdrom control commands
* and status codes. This info was "inherited" from the DOS MTMCDE.SYS
* driver, and is thus not complete (and may even be wrong). Some day
* the manufacturer or anyone else might provide better documentation,
* so this file (and the driver) will then have a better quality.
*/

#if __GNUC__ >= 2
#pragma pack(1)
#endif

typedef unsigned char   bcd_t;
#define M_msf(msf)      msf[0]
#define S_msf(msf)      msf[1]
#define F_msf(msf)      msf[2]

#define MCD_COMMAND     0
#define MCD_STATUS      0
#define MCD_RDATA       0
#define MCD_RESET       1
#define MCD_XFER        1
#define MCD_CTL2        2 /* XXX Is this right? */
#define MCD_CONFIG      3
#define MCD_NPORT       4

#define MCD_MASK_DMA    0x07    /* bits 2-0 = DMA channel */
#define MCD_MASK_IRQ    0x70    /* bits 6-4 = INT number */
                               /* 001 = int 2,9 */
                               /* 010 = int 3 */
                               /* 011 = int 5 */
                               /* 100 = int 10 */
                               /* 101 = int 11 */

/* Status bits */
#define MCD_ST_DOOROPEN         0x80
#define MCD_ST_DSKIN            0x40
#define MCD_ST_DSKCHNG          0x20
#define MCD_ST_SPINNING         0x10
#define MCD_ST_AUDIODISK        0x08    /* audio disk is in */
#define MCD_ST_READERR          0x04
#define MCD_ST_AUDIOBSY         0x02    /* audio disk is playing */
#define MCD_ST_CMDCHECK         0x01    /* command error */

/* Xfer bits */
#define MCD_XF_STATUSUNAVAIL    0x04
#define MCD_XF_DATAUNAVAIL      0x02

/* Modes */
#define MCD_MD_TESTMODE         0x80    /* 0 = DATALENGTH is valid */
#define MCD_MD_DATALENGTH       0x40    /* 1 = read ECC data also */
#define MCD_MD_ECCMODE          0x20    /* 1 = disable secondary ECC */
#define MCD_MD_SPINDOWN         0x08    /* 1 = spin down */
#define MCD_MD_READTOC          0x04    /* 1 = read TOC on GETQCHN */
#define MCD_MD_PLAYAUDIO        0x01    /* 1 = play audio through headphones */

#define MCD_MD_RAW              (MCD_MD_PLAYAUDIO|MCD_MD_ECCMODE|MCD_MD_DATALENGTH)
#define MCD_MD_COOKED           (MCD_MD_PLAYAUDIO)
#define MCD_MD_TOC              (MCD_MD_PLAYAUDIO|MCD_MD_READTOC)
#define MCD_MD_SLEEP            (MCD_MD_PLAYAUDIO|MCD_MD_SPINDOWN)

#define MCD_BLKSIZE_RAW         sizeof(struct mcd_rawsector)
#define MCD_BLKSIZE_COOKED      2048

/* Lock states */
#define MCD_LK_UNLOCK           0x00
#define MCD_LK_LOCK             0x01
#define MCD_LK_TEST             0x02

/* Config commands */
#define MCD_CF_IRQENABLE        0x10
#define MCD_CF_DMATIMEOUT       0x08
#define MCD_CF_READUPC          0x04
#define MCD_CF_DMAENABLE        0x02
#define MCD_CF_BLOCKSIZE        0x01

/* UPC subcommands */
#define MCD_UPC_DISABLE         0x00
#define MCD_UPC_ENABLE          0x01

/* commands known by the controller */
#define MCD_CMDRESET            0x00
#define MCD_CMDGETVOLINFO       0x10    /* gets mcd_volinfo */
#define MCD_CMDGETDISKINFO      0x11    /* gets mcd_disk */
#define MCD_CMDGETQCHN          0x20    /* gets mcd_qchninfo */
#define MCD_CMDGETSENSE         0x30    /* gets sense info */
#define MCD_CMDGETSTAT          0x40    /* gets a byte of status */
#define MCD_CMDSETMODE          0x50    /* set transmission mode, needs byte */
#define MCD_CMDSTOPAUDIO        0x70
#define MCD_CMDSTOPAUDIOTIME    0x80
#define MCD_CMDGETVOLUME        0x8E    /* gets mcd_volume */
#define MCD_CMDCONFIGDRIVE      0x90
#define MCD_CMDSETDRIVEMODE     0xa0    /* set drive mode */
#define MCD_CMDSETVOLUME        0xae    /* sets mcd_volume */
#define MCD_CMDREAD1            0xb0    /* read n sectors */
#define MCD_CMDREADSINGLESPEED  0xc0    /* read (single speed) */
#define MCD_CMDREADDOUBLESPEED  0xc1    /* read (double speed) */
#define MCD_CMDGETDRIVEMODE     0xc2    /* get drive mode */
#define MCD_CMDREAD3            0xc3    /* ? */
#define MCD_CMDSETINTERLEAVE    0xc8    /* set interleave for read */
#define MCD_CMDCONTINFO         0xdc    /* get controller info */
#define MCD_CMDSTOP             0xf0    /* stop everything */
#define MCD_CMDEJECTDISK        0xf6
#define MCD_CMDCLOSETRAY        0xf8
#define MCD_CMDSETLOCK          0xfe    /* needs byte */

union mcd_qchninfo {
       struct {
               u_char  control:4;
               u_char  addr_type:4;
               u_char  trk_no;
               u_char  idx_no;
               bcd_t   track_size[3];
               u_char  :8;
               bcd_t   absolute_pos[3];
       } toc;
       struct {
               u_char  control:4;
               u_char  addr_type:4;
               u_char  trk_no;
               u_char  idx_no;
               bcd_t   relative_pos[3];
               u_char  :8;
               bcd_t   absolute_pos[3];
       } current;
       struct {
               u_char  control:4;
               u_char  addr_type:4;
               u_char  upccode[7];
               u_char  junk[2];
       } upc;
};

struct mcd_volinfo {
       bcd_t   trk_low;
       bcd_t   trk_high;
       bcd_t   vol_msf[3];
       bcd_t   trk1_msf[3];
};

struct mcd_result {
       u_char  length;
       union {
               struct {
                       u_char  data[1];
               } raw;
               struct {
                       u_char  code;
                       u_char  version;
               } continfo;
               union mcd_qchninfo qchninfo;
               struct mcd_volinfo volinfo;
       } data;
};

struct mcd_command {
       u_char  opcode;
       u_char  length;
       union {
               struct {
                       u_char  data[1];
               } raw;
               struct {
                       bcd_t   start_msf[3];
                       bcd_t   reserved[3];
               } seek;
               struct {
                       bcd_t   start_msf[3];
                       bcd_t   length[3];
               } read;
               struct {
                       bcd_t   start_msf[3];
                       bcd_t   end_msf[3];
               } play;
               struct {
                       u_char  mode;
               } datamode;
               struct {
                       u_char  time;
               } hold;
               struct {
                       u_char  mode;
               } drivemode;
               struct {
                       u_char  mode;
               } lockmode;
               struct {
                       u_char  subcommand;
                       u_char  data1, data2;
               } config;
       } data;
};

struct mcd_mbox {
       struct mcd_command cmd;
       struct mcd_result res;
};

struct mcd_volume {
       u_char  v0l;
       u_char  v0rs;
       u_char  v0r;
       u_char  v0ls;
};

struct mcd_rawsector {
       u_char  sync1[12];
       u_char  header[4];
       u_char  subheader1[4];
       u_char  subheader2[4];
       u_char  data[MCD_BLKSIZE_COOKED];
       u_char  ecc_bits[280];
};

#if __GNUC__ >= 2
#pragma pack()
#endif

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