projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 90587a41 CT |
1 | /* |
| 2 | * Copyright (c) 1991, 1992 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * This software was developed by the Computer Systems Engineering group | |
| 6 | * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and | |
| 7 | * contributed to Berkeley. | |
| 8 | * | |
| 9 | * %sccs.include.redist.c% | |
| 10 | * | |
| 11 | * @(#)bsd_audioio.h 7.1 (Berkeley) %G% | |
| 12 | * | |
| 13 | * from: $Header: bsd_audioio.h,v 1.4 92/07/13 00:31:22 torek Exp $ (LBL) | |
| 14 | */ | |
| 15 | ||
| 16 | #ifndef _BSD_AUDIOIO_H_ | |
| 17 | #define _BSD_AUDIOIO_H_ | |
| 18 | ||
| 19 | /* | |
| 20 | * /dev/audio ioctls. needs comments! | |
| 21 | */ | |
| 22 | #define AUDIO_MIN_GAIN 0 | |
| 23 | #define AUDIO_MAX_GAIN 255 | |
| 24 | ||
| 25 | #define AUDIO_ENCODING_ULAW 1 | |
| 26 | #define AUDIO_ENCODING_ALAW 2 | |
| 27 | ||
| 28 | struct audio_prinfo { | |
| 29 | u_int sample_rate; | |
| 30 | u_int channels; | |
| 31 | u_int precision; | |
| 32 | u_int encoding; | |
| 33 | u_int gain; | |
| 34 | u_int port; | |
| 35 | u_int samples; | |
| 36 | ||
| 37 | u_char pause; | |
| 38 | u_char error; | |
| 39 | u_char waiting; | |
| 40 | u_char open; | |
| 41 | ||
| 42 | /* BSD extensions */ | |
| 43 | u_long seek; | |
| 44 | }; | |
| 45 | ||
| 46 | struct audio_info { | |
| 47 | struct audio_prinfo play; | |
| 48 | struct audio_prinfo record; | |
| 49 | u_int monitor_gain; | |
| 50 | /* BSD extensions */ | |
| 51 | u_int blocksize; /* input blocking threshold */ | |
| 52 | u_int hiwat; /* output high water mark */ | |
| 53 | u_int lowat; /* output low water mark */ | |
| 54 | }; | |
| 55 | typedef struct audio_info audio_info_t; | |
| 56 | ||
| 57 | #define AUDIO_INITINFO(p)\ | |
| 58 | (void)memset((void *)(p), 0xff, sizeof(struct audio_info)) | |
| 59 | ||
| 60 | #if (defined(sun) || defined(ibm032)) && !defined(__GNUC__) | |
| 61 | #define AUDIO_GETINFO _IOR(A, 1, struct audio_info) | |
| 62 | #define AUDIO_SETINFO _IOWR(A, 2, struct audio_info) | |
| 63 | #define AUDIO_DRAIN _IO(A, 3) | |
| 64 | #define AUDIO_FLUSH _IO(A, 4) | |
| 65 | #define AUDIO_WSEEK _IOR(A, 5, u_long) | |
| 66 | #define AUDIO_RERROR _IOR(A, 6, int) | |
| 67 | #define AUDIO_GETMAP _IOR(A, 20, struct mapreg) | |
| 68 | #define AUDIO_SETMAP _IOW(A, 21, struct mapreg) | |
| 69 | #else | |
| 70 | #define AUDIO_GETINFO _IOR('A', 1, struct audio_info) | |
| 71 | #define AUDIO_SETINFO _IOWR('A', 2, struct audio_info) | |
| 72 | #define AUDIO_DRAIN _IO('A', 3) | |
| 73 | #define AUDIO_FLUSH _IO('A', 4) | |
| 74 | #define AUDIO_WSEEK _IOR('A', 5, u_long) | |
| 75 | #define AUDIO_RERROR _IOR('A', 6, int) | |
| 76 | #define AUDIO_GETMAP _IOR('A', 20, struct mapreg) | |
| 77 | #define AUDIO_SETMAP _IOW('A', 21, struct mapreg) | |
| 78 | #endif | |
| 79 | ||
| 80 | #define AUDIO_SPEAKER 1 | |
| 81 | #define AUDIO_HEADPHONE 2 | |
| 82 | ||
| 83 | /* | |
| 84 | * Low level interface. | |
| 85 | */ | |
| 86 | struct mapreg { | |
| 87 | u_short mr_x[8]; | |
| 88 | u_short mr_r[8]; | |
| 89 | u_short mr_gx; | |
| 90 | u_short mr_gr; | |
| 91 | u_short mr_ger; | |
| 92 | u_short mr_stgr; | |
| 93 | u_short mr_ftgr; | |
| 94 | u_short mr_atgr; | |
| 95 | u_char mr_mmr1; | |
| 96 | u_char mr_mmr2; | |
| 97 | }; | |
| 98 | ||
| 99 | #endif /* _BSD_AUDIOIO_H_ */ |