arch/m68k-amiga/devs/cd/chinon.h

   1 /*
   2  * Copyright (C) 2013, The AROS Development Team
   3  * All right reserved.
   4  * Author: Jason S. McMullan <jason.mcmullan@gmail.com>
   5  *
   6  * Licensed under the AROS PUBLIC LICENSE (APL) Version 1.1
   7  */
   8
   9 #ifndef CHINON_H
  10 #define CHINON_H
  11
  12 #include <exec/types.h>
  13
  14 /* Chinon O-658-2 24 CD Commands
  15  * 'msf' is [minutes seconds frame]
  16  *          ^- These are in BCD --^
  17  */
  18
  19 #define CHCD_RESET     0       /* Cmd =    [ 0x00 ]
  20                                   Result = [ 0x00 ] */
  21 #define CHCD_STOP      1       /* Cmd =    [ 0x01 0x00 ]
  22                                   Result = [ 0x01 errcode ] */
  23 #define CHCD_PAUSE     2       /* Cmd =    [ 0x02 ]
  24                                   Result = [ 0x02 errcode ] */
  25 #define CHCD_UNPAUSE   3       /* Cmd =    [ 0x03 ]
  26                                   Result = [ 0x03 errcode ] */
  27 #define CHCD_MULTI     4       /* Cmd =    [ 0x04 start_msf end_msf subcmd flags ?? audio ?? ]
  28                                    subcmd: 0x80 - Data read
  29                                            0x03 - TOC read
  30                                    flags:  0x40 - Speed (0 = x1, 0x40 = x2)
  31                                    audio:  0x04 - Play audio
  32                                   Result = [ 0x04 0x01 ] // No Disk
  33                                            [ 0x04 0x02 ] // Read in progress
  34                                            [ 0x04 0x08 ] // Audio playing
  35                                            [ 0x04 0x80 ] // Error
  36                                            [ 0x04 0x00 ] // IO complete
  37                                 */
  38 #define CHCD_LED       5       /* Cmd =    [ 0x05 led ]
  39                                    led: 0x80 - Result wanted
  40                                         0x01 - LED on/off
  41                                   Result = [ 0x05 led ] (if led & 0x80)
  42                                  */
  43 #define CHCD_SUBQ      6       /* Cmd =    [ 0x06 ]
  44                                   Result = [ 0x06 0x00 0x00 CtlAdr Track Index TrackPos_u24 DiskPos_u32 CurrPos_msf ] */
  45 #define CHCD_STATUS    7       /* Cmd =    [ 0x07 ]
  46                                   Result = [ 0x07 code FirmwareString[18] ]
  47                                    code: 0x01 - Door closed, disk present
  48                                          0x80 - Door open
  49                                  */
  50 #define CHCD_CMD8       8      /* Cmd =    [ 0x08 ?? ?? ?? ]
  51                                   Result = [ 0x08 ?? ?? ?? ]
  52                                 */
  53 #define CHCD_CMD9       9      /* Cmd =    [ 0x09 ]
  54                                   Result = [ 0x09 ?? ?? ?? ]
  55                                 */
  56 /* Received when there is a media change */
  57 #define CHCD_MEDIA      10     /* Result = [ 0x0a status ]
  58                                 *  status: 0x83 - Disk present
  59                                 *          0x80 - Disk absent
  60                                 */
  61
  62 #define CHERR_OK                0x00
  63 #define CHERR_DISKPRESENT       0x01
  64 #define CHERR_READING           0x02
  65 #define CHERR_PLAYING           0x08
  66 #define CHERR_BADCOMMAND        0x80
  67 #define CHERR_CHECKSUM          0x88
  68 #define CHERR_DRAWERSTUCK       0x90
  69 #define CHERR_DISKUNREADABLE    0x98
  70 #define CHERR_INVALIDADDRESS    0xa0
  71 #define CHERR_WRONGDATA         0xa8
  72 #define CHERR_FOCUS             0xc8
  73 #define CHERR_SPINDLE           0xd0
  74 #define CHERR_TRACKING          0xd8
  75 #define CHERR_SLED              0xe0
  76 #define CHERR_TRACKJUMP         0xe8
  77 #define CHERR_ABNORMALSEEK      0xf0
  78 #define CHERR_NODISK            0xf8
  79
  80 struct chcd_msf {
  81     BYTE minute;        /* In BCD (up to 99) */
  82     BYTE second;        /* In BCD (up to 59) */
  83     BYTE frame;         /* In BCD (up to 74) */
  84 };
  85
  86 /* NOTE: There is a checksum following all commands,
  87  * regardless of length. The checksum is the inverse
  88  * of the sum of all the bytes of the command.
  89  */
  90 struct chcd_cmd {
  91     BYTE cmd;
  92     union {
  93         struct {} noop;
  94         struct {
  95             BYTE resv;
  96         } stop;
  97         struct {} pause;
  98         struct {} unpause;
  99         struct {
 100             struct chcd_msf start;
 101             struct chcd_msf end;
 102             BYTE mode;  /* 0x80 for data read */
 103             BYTE flags; /* 0x40 for 150 frames/sec, 0x00 for 75 frames/sec */
 104             BYTE resv_1;
 105             BYTE audio; /* 0x04 to play audio */
 106             BYTE resv_2;
 107         } multi;
 108         struct {
 109             BYTE state; /* 0x01 to turn on, 0x00 to turn off */
 110                         /* 0x80 to force a result code */
 111         } led;
 112         struct { } subq;
 113         struct { } status;
 114     };
 115 };
 116
 117
 118 /* NOTE: There is a checksum following all results,
 119  * regardless of length. The checksum is the inverse
 120  * of the sum of all the bytes of the result.
 121  */
 122 struct chcd_result {
 123     BYTE cmd;
 124     BYTE error;
 125     union {
 126         struct {} noop;
 127         struct {} stop;
 128         struct {} pause;
 129         struct {} unpause;
 130         struct {} multi;
 131         struct {} led;
 132         struct {
 133             BYTE resv;
 134             BYTE ctladr;
 135             BYTE track;
 136             BYTE index;
 137             struct chcd_msf track_position;
 138             BYTE resv_2;
 139             struct chcd_msf disk_position;
 140             BYTE resv_3;
 141             BYTE resv_4;
 142         } subq;
 143         struct {
 144             BYTE firmware[18];
 145         } status;
 146     };
 147 };
 148
 149 #endif /* CHINON_H */