arch/m68k-amiga/devs/audio/audio_intern.h

   1 #ifndef AUDIO_DEVICE_H
   2 #define AUDIO_DEVICE_H
   3
   4 #include <exec/types.h>
   5 #include <exec/devices.h>
   6 #include <exec/interrupts.h>
   7 #include <devices/audio.h>
   8
   9 #define NR_CH 4
  10 #define CH_MASK ((1 << NR_CH) - 1)
  11
  12 struct AudioInterrupt
  13 {
  14         struct Interrupt audint;
  15         UWORD ch;
  16         struct AudioBase *ab;
  17 };
  18
  19 struct AudioBase
  20 {
  21     struct Device td_device;
  22     struct AudioInterrupt audint[NR_CH];
  23     UWORD *zerosample;
  24     WORD key[NR_CH];
  25     BYTE  pri[NR_CH];
  26     WORD keygen;
  27     struct MinList writelist[NR_CH];
  28     struct MinList misclist;
  29     UWORD cycles[NR_CH];
  30     UWORD initialcyclemask;
  31     UWORD initialdmamask;
  32     UWORD stopmask;
  33 };
  34
  35 extern void audiohw_init(struct AudioBase *ab);
  36 extern void audiohw_reset(struct AudioBase *ab, UWORD mask);
  37 extern void audiohw_start(struct AudioBase *ab, UWORD mask);
  38 extern void audiohw_stop(struct AudioBase *ab, UWORD mask);
  39 extern void audiohw_prepareptlen(struct AudioBase *ab, struct IOAudio *io, UBYTE ch);
  40 extern void audiohw_preparepervol(struct AudioBase *ab, struct IOAudio *io, UBYTE ch);
  41
  42 extern struct IOAudio *getnextwrite(struct AudioBase *ab, UBYTE ch, BOOL second);
  43
  44
  45 #endif