1*55118Storek /* 2*55118Storek * Copyright (c) 1991, 1992 The Regents of the University of California. 3*55118Storek * All rights reserved. 4*55118Storek * 5*55118Storek * This software was developed by the Computer Systems Engineering group 6*55118Storek * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 7*55118Storek * contributed to Berkeley. 8*55118Storek * 9*55118Storek * %sccs.include.redist.c% 10*55118Storek * 11*55118Storek * @(#)bsd_audioio.h 7.1 (Berkeley) 07/13/92 12*55118Storek * 13*55118Storek * from: $Header: bsd_audioio.h,v 1.4 92/07/13 00:31:22 torek Exp $ (LBL) 14*55118Storek */ 15*55118Storek 16*55118Storek #ifndef _BSD_AUDIOIO_H_ 17*55118Storek #define _BSD_AUDIOIO_H_ 18*55118Storek 19*55118Storek /* 20*55118Storek * /dev/audio ioctls. needs comments! 21*55118Storek */ 22*55118Storek #define AUDIO_MIN_GAIN 0 23*55118Storek #define AUDIO_MAX_GAIN 255 24*55118Storek 25*55118Storek #define AUDIO_ENCODING_ULAW 1 26*55118Storek #define AUDIO_ENCODING_ALAW 2 27*55118Storek 28*55118Storek struct audio_prinfo { 29*55118Storek u_int sample_rate; 30*55118Storek u_int channels; 31*55118Storek u_int precision; 32*55118Storek u_int encoding; 33*55118Storek u_int gain; 34*55118Storek u_int port; 35*55118Storek u_int samples; 36*55118Storek 37*55118Storek u_char pause; 38*55118Storek u_char error; 39*55118Storek u_char waiting; 40*55118Storek u_char open; 41*55118Storek 42*55118Storek /* BSD extensions */ 43*55118Storek u_long seek; 44*55118Storek }; 45*55118Storek 46*55118Storek struct audio_info { 47*55118Storek struct audio_prinfo play; 48*55118Storek struct audio_prinfo record; 49*55118Storek u_int monitor_gain; 50*55118Storek /* BSD extensions */ 51*55118Storek u_int blocksize; /* input blocking threshold */ 52*55118Storek u_int hiwat; /* output high water mark */ 53*55118Storek u_int lowat; /* output low water mark */ 54*55118Storek }; 55*55118Storek typedef struct audio_info audio_info_t; 56*55118Storek 57*55118Storek #define AUDIO_INITINFO(p)\ 58*55118Storek (void)memset((void *)(p), 0xff, sizeof(struct audio_info)) 59*55118Storek 60*55118Storek #if (defined(sun) || defined(ibm032)) && !defined(__GNUC__) 61*55118Storek #define AUDIO_GETINFO _IOR(A, 1, struct audio_info) 62*55118Storek #define AUDIO_SETINFO _IOWR(A, 2, struct audio_info) 63*55118Storek #define AUDIO_DRAIN _IO(A, 3) 64*55118Storek #define AUDIO_FLUSH _IO(A, 4) 65*55118Storek #define AUDIO_WSEEK _IOR(A, 5, u_long) 66*55118Storek #define AUDIO_RERROR _IOR(A, 6, int) 67*55118Storek #define AUDIO_GETMAP _IOR(A, 20, struct mapreg) 68*55118Storek #define AUDIO_SETMAP _IOW(A, 21, struct mapreg) 69*55118Storek #else 70*55118Storek #define AUDIO_GETINFO _IOR('A', 1, struct audio_info) 71*55118Storek #define AUDIO_SETINFO _IOWR('A', 2, struct audio_info) 72*55118Storek #define AUDIO_DRAIN _IO('A', 3) 73*55118Storek #define AUDIO_FLUSH _IO('A', 4) 74*55118Storek #define AUDIO_WSEEK _IOR('A', 5, u_long) 75*55118Storek #define AUDIO_RERROR _IOR('A', 6, int) 76*55118Storek #define AUDIO_GETMAP _IOR('A', 20, struct mapreg) 77*55118Storek #define AUDIO_SETMAP _IOW('A', 21, struct mapreg) 78*55118Storek #endif 79*55118Storek 80*55118Storek #define AUDIO_SPEAKER 1 81*55118Storek #define AUDIO_HEADPHONE 2 82*55118Storek 83*55118Storek /* 84*55118Storek * Low level interface. 85*55118Storek */ 86*55118Storek struct mapreg { 87*55118Storek u_short mr_x[8]; 88*55118Storek u_short mr_r[8]; 89*55118Storek u_short mr_gx; 90*55118Storek u_short mr_gr; 91*55118Storek u_short mr_ger; 92*55118Storek u_short mr_stgr; 93*55118Storek u_short mr_ftgr; 94*55118Storek u_short mr_atgr; 95*55118Storek u_char mr_mmr1; 96*55118Storek u_char mr_mmr2; 97*55118Storek }; 98*55118Storek 99*55118Storek #endif /* _BSD_AUDIOIO_H_ */ 100