sys/scsi/scsi_cd.h

   1 /*
   2  * Written by Julian Elischer (julian@tfs.com)
   3  * for TRW Financial Systems.
   4  *
   5  * TRW Financial Systems, in accordance with their agreement with Carnegie
   6  * Mellon University, makes this software available to CMU to distribute
   7  * or use in any manner that they see fit as long as this message is kept with
   8  * the software. For this reason TFS also grants any other persons or
   9  * organisations permission to use or modify this software.
  10  *
  11  * TFS supplies this software to be publicly redistributed
  12  * on the understanding that TFS is not responsible for the correct
  13  * functioning of this software in any circumstances.
  14  *
  15  * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
  16  *
  17  *      $Id$
  18  */
  19
  20 /*
  21  *      Define two bits always in the same place in byte 2 (flag byte)
  22  */
  23 #define CD_RELADDR      0x01
  24 #define CD_MSF          0x02
  25
  26 /*
  27  * SCSI command format
  28  */
  29
  30 struct scsi_read_capacity_cd
  31 {
  32         u_char  op_code;
  33         u_char  byte2;
  34         u_char  addr_3; /* Most Significant */
  35         u_char  addr_2;
  36         u_char  addr_1;
  37         u_char  addr_0; /* Least Significant */
  38         u_char  unused[3];
  39         u_char  control;
  40 };
  41
  42 struct scsi_pause
  43 {
  44         u_char  op_code;
  45         u_char  byte2;
  46         u_char  unused[6];
  47         u_char  resume;
  48         u_char  control;
  49 };
  50 #define PA_PAUSE        1
  51 #define PA_RESUME       0
  52
  53 struct scsi_play_msf
  54 {
  55         u_char  op_code;
  56         u_char  byte2;
  57         u_char  unused;
  58         u_char  start_m;
  59         u_char  start_s;
  60         u_char  start_f;
  61         u_char  end_m;
  62         u_char  end_s;
  63         u_char  end_f;
  64         u_char  control;
  65 };
  66
  67 struct scsi_play_track
  68 {
  69         u_char  op_code;
  70         u_char  byte2;
  71         u_char  unused[2];
  72         u_char  start_track;
  73         u_char  start_index;
  74         u_char  unused1;
  75         u_char  end_track;
  76         u_char  end_index;
  77         u_char  control;
  78 };
  79
  80 struct scsi_play
  81 {
  82         u_char  op_code;
  83         u_char  byte2;
  84         u_char  blk_addr[4];
  85         u_char  unused;
  86         u_char  xfer_len[2];
  87         u_char  control;
  88 };
  89
  90 struct scsi_play_big
  91 {
  92         u_char  op_code;
  93         u_char  byte2;  /* same as above */
  94         u_char  blk_addr[4];
  95         u_char  xfer_len[4];
  96         u_char  unused;
  97         u_char  control;
  98 };
  99
 100 struct scsi_play_rel_big
 101 {
 102         u_char  op_code;
 103         u_char  byte2;  /* same as above */
 104         u_char  blk_addr[4];
 105         u_char  xfer_len[4];
 106         u_char  track;
 107         u_char  control;
 108 };
 109
 110 struct scsi_read_header
 111 {
 112         u_char  op_code;
 113         u_char  byte2;
 114         u_char  blk_addr[4];
 115         u_char  unused;
 116         u_char  data_len[2];
 117         u_char  control;
 118 };
 119
 120 struct scsi_read_subchannel
 121 {
 122         u_char  op_code;
 123         u_char  byte2;
 124         u_char  byte3;
 125 #define SRS_SUBQ        0x40
 126         u_char  subchan_format;
 127         u_char  unused[2];
 128         u_char  track;
 129         u_char  data_len[2];
 130         u_char  control;
 131 };
 132
 133 struct scsi_read_toc
 134 {
 135         u_char  op_code;
 136         u_char  byte2;
 137         u_char  unused[4];
 138         u_char  from_track;
 139         u_char  data_len[2];
 140         u_char  control;
 141 };
 142 ;
 143
 144 struct scsi_read_cd_capacity
 145 {
 146         u_char  op_code;
 147         u_char  byte2;
 148         u_char  addr_3; /* Most Significant */
 149         u_char  addr_2;
 150         u_char  addr_1;
 151         u_char  addr_0; /* Least Significant */
 152         u_char  unused[3];
 153         u_char  control;
 154 };
 155
 156 /*
 157  * Opcodes
 158  */
 159
 160 #define READ_CD_CAPACITY        0x25    /* slightly different from disk */
 161 #define READ_SUBCHANNEL         0x42    /* cdrom read Subchannel */
 162 #define READ_TOC                0x43    /* cdrom read TOC */
 163 #define READ_HEADER             0x44    /* cdrom read header */
 164 #define PLAY                    0x45    /* cdrom play  'play audio' mode */
 165 #define PLAY_MSF                0x47    /* cdrom play Min,Sec,Frames mode */
 166 #define PLAY_TRACK              0x48    /* cdrom play track/index mode */
 167 #define PLAY_TRACK_REL          0x49    /* cdrom play track/index mode */
 168 #define PAUSE                   0x4b    /* cdrom pause in 'play audio' mode */
 169 #define PLAY_BIG                0xa5    /* cdrom pause in 'play audio' mode */
 170 #define PLAY_TRACK_REL_BIG      0xa9    /* cdrom play track/index mode */
 171
 172
 173
 174 struct scsi_read_cd_cap_data
 175 {
 176         u_char  addr_3; /* Most significant */
 177         u_char  addr_2;
 178         u_char  addr_1;
 179         u_char  addr_0; /* Least significant */
 180         u_char  length_3;       /* Most significant */
 181         u_char  length_2;
 182         u_char  length_1;
 183         u_char  length_0;       /* Least significant */
 184 };
 185
 186 union   cd_pages
 187 {
 188         struct  audio_page
 189         {
 190                 u_char  page_code;
 191 #define CD_PAGE_CODE    0x3F
 192 #define AUDIO_PAGE      0x0e
 193 #define CD_PAGE_PS      0x80
 194                 u_char  param_len;
 195                 u_char  flags;
 196 #define         CD_PA_SOTC      0x02
 197 #define         CD_PA_IMMED     0x04
 198                 u_char  unused[2];
 199                 u_char  format_lba;
 200 #define         CD_PA_FORMAT_LBA        0x0F
 201 #define         CD_PA_APR_VALID 0x80
 202                 u_char  lb_per_sec[2];
 203                 struct  port_control
 204                 {
 205                         u_char  channels;
 206 #define CHANNEL 0x0F
 207 #define CHANNEL_0 1
 208 #define CHANNEL_1 2
 209 #define CHANNEL_2 4
 210 #define CHANNEL_3 8
 211 #define LEFT_CHANNEL    CHANNEL_0
 212 #define RIGHT_CHANNEL   CHANNEL_1
 213                         u_char  volume;
 214                 } port[4];
 215 #define LEFT_PORT       0
 216 #define RIGHT_PORT      1
 217         }audio;
 218 };
 219
 220 struct cd_mode_data
 221 {
 222         struct scsi_mode_header header;
 223         struct blk_desc blk_desc;
 224         union cd_pages page;
 225 };
 226