sound/oss/dm.h

   1 #ifndef _DRIVERS_SOUND_DM_H
   2 #define _DRIVERS_SOUND_DM_H
   3
   4 /*
   5  *      Definitions of the 'direct midi sound' interface used
   6  *      by the newer commercial OSS package. We should export
   7  *      this to userland somewhere in glibc later.
   8  */
   9
  10 /*
  11  * Data structure composing an FM "note" or sound event.
  12  */
  13
  14 struct dm_fm_voice
  15 {
  16         u8 op;
  17         u8 voice;
  18         u8 am;
  19         u8 vibrato;
  20         u8 do_sustain;
  21         u8 kbd_scale;
  22         u8 harmonic;
  23         u8 scale_level;
  24         u8 volume;
  25         u8 attack;
  26         u8 decay;
  27         u8 sustain;
  28         u8 release;
  29         u8 feedback;
  30         u8 connection;
  31         u8 left;
  32         u8 right;
  33         u8 waveform;
  34 };
  35
  36 /*
  37  *      This describes an FM note by its voice, octave, frequency number (10bit)
  38  *      and key on/off.
  39  */
  40
  41 struct dm_fm_note
  42 {
  43         u8 voice;
  44         u8 octave;
  45         u32 fnum;
  46         u8 key_on;
  47 };
  48
  49 /*
  50  * FM parameters that apply globally to all voices, and thus are not "notes"
  51  */
  52
  53 struct dm_fm_params
  54 {
  55         u8 am_depth;
  56         u8 vib_depth;
  57         u8 kbd_split;
  58         u8 rhythm;
  59
  60         /* This block is the percussion instrument data */
  61         u8 bass;
  62         u8 snare;
  63         u8 tomtom;
  64         u8 cymbal;
  65         u8 hihat;
  66 };
  67
  68 /*
  69  *      FM mode ioctl settings
  70  */
  71
  72 #define FM_IOCTL_RESET        0x20
  73 #define FM_IOCTL_PLAY_NOTE    0x21
  74 #define FM_IOCTL_SET_VOICE    0x22
  75 #define FM_IOCTL_SET_PARAMS   0x23
  76 #define FM_IOCTL_SET_MODE     0x24
  77 #define FM_IOCTL_SET_OPL      0x25
  78
  79 #endif