1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright (c) 1999-2001 by Sun Microsystems, Inc. 24 * All rights reserved. 25 */ 26 27 #ifndef _SYS_AUDIO_H 28 #define _SYS_AUDIO_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #include <sys/types.h> 37 #include <sys/audioio.h> 38 39 #define AUDIO_NAME "audio support" /* STREAMS module name */ 40 #define AUDIO_VERSION "Rev 1" /* 1st version of audio arch. */ 41 #define AUDIO_CONFIGURATION "Config A" /* 1st configuration */ 42 #define AUDIO_MOD_NAME "Audio Device Support" 43 /* STREAMS modldrv name */ 44 45 #define AUDIO_PLAY 0x0001 /* output */ 46 #define AUDIO_RECORD 0x0002 /* input */ 47 #define AUDIO_BOTH (AUDIO_PLAY|AUDIO_RECORD) 48 #define AUDIO_NO_SLEEP 0x0004 49 #define AUDIO_SLEEP 0x0008 50 51 52 #define AUDIO_INIT(I, S) { \ 53 uint8_t *__x__; \ 54 for (__x__ = (uint8_t *)(I); \ 55 __x__ < (((uint8_t *)(I)) + (S)); \ 56 *__x__++ = (uint8_t)~0); \ 57 } 58 59 /* 60 * Audio support ioctls. 61 */ 62 #define AIOC ('A'<<8) 63 #define AUDIO_GET_CH_NUMBER (AIOC|10) 64 #define AUDIO_GET_CH_TYPE (AIOC|11) 65 #define AUDIO_GET_NUM_CHS (AIOC|12) 66 #define AUDIO_GET_AD_DEV (AIOC|13) 67 #define AUDIO_GET_APM_DEV (AIOC|14) 68 #define AUDIO_GET_AS_DEV (AIOC|15) 69 70 /* 71 * audio_device_type_e - type of audio device the channel is associated with. 72 */ 73 enum audio_device_type { 74 UNDEFINED = 0, AUDIO = 1, AUDIOCTL = 2, WTABLE = 3, MIDI = 4, 75 ATIME = 5, USER1 = 9, USER2 = 10, USER3 = 11 76 }; 77 typedef enum audio_device_type audio_device_type_e; 78 79 /* 80 * audio_channel_t - structure holds info on individual channels 81 */ 82 struct audio_channel { 83 /* 84 * Process ID of the process that has this channel open. If this is 85 * set to 0 then the channel isn't owned by any process and is free. 86 */ 87 pid_t pid; 88 89 /* 90 * When a channel is opened it is a given a new minor number, we always 91 * clone the device. The ch_number is directly related to that new 92 * minor number. Each open gets a unique channel number. 93 */ 94 uint_t ch_number; 95 96 /* 97 * Type of audio device opened. This cloned channel retains that 98 * type, which determines which Audio Personality Module to use. 99 */ 100 audio_device_type_e dev_type; 101 102 /* 103 * Each device type has a state structure which describes the hardware. 104 * Because each state structure is different we need to know the size 105 * for apps to allocate the correct space. 106 */ 107 size_t info_size; 108 109 /* 110 * The device type's state structure. 111 */ 112 void *info; 113 }; 114 typedef struct audio_channel audio_channel_t; 115 116 #ifdef __cplusplus 117 } 118 #endif 119 120 #endif /* _SYS_AUDIO_H */ 121