57 lines
1,007 B
C
57 lines
1,007 B
C
typedef struct Audio Audio;
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typedef struct Volume Volume;
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struct Audio
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{
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char *name;
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void *ctlr;
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void *mixer;
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Ref audioopenr;
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Ref audioopenw;
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long (*read)(Audio *, void *, long, vlong);
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long (*write)(Audio *, void *, long, vlong);
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void (*close)(Audio *, int);
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long (*volread)(Audio *, void *, long, vlong);
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long (*volwrite)(Audio *, void *, long, vlong);
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long (*ctl)(Audio *, void *, long, vlong);
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long (*status)(Audio *, void *, long, vlong);
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long (*buffered)(Audio *);
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int delay;
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int speed;
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int ctlrno;
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Audio *next;
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};
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enum {
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Left,
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Right,
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Stereo,
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Absolute,
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};
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#define Mono Left
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struct Volume
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{
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char *name;
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int reg;
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int range;
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int type;
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int cap;
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};
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extern void addaudiocard(char *, int (*)(Audio *));
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extern long genaudiovolread(Audio *adev, void *a, long n, vlong off,
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Volume *vol, int (*volget)(Audio *, int, int *),
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ulong caps);
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extern long genaudiovolwrite(Audio *adev, void *a, long n, vlong off,
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Volume *vol, int (*volset)(Audio *, int, int *),
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ulong caps);
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