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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1999-2001 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _SYS_AUDIO_H
#define _SYS_AUDIO_H
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/types.h>
#include <sys/audioio.h>
#define AUDIO_NAME "audio support" /* STREAMS module name */
#define AUDIO_VERSION "Rev 1" /* 1st version of audio arch. */
#define AUDIO_CONFIGURATION "Config A" /* 1st configuration */
#define AUDIO_MOD_NAME "Audio Device Support"
/* STREAMS modldrv name */
#define AUDIO_PLAY 0x0001 /* output */
#define AUDIO_RECORD 0x0002 /* input */
#define AUDIO_BOTH (AUDIO_PLAY|AUDIO_RECORD)
#define AUDIO_NO_SLEEP 0x0004
#define AUDIO_SLEEP 0x0008
#define AUDIO_INIT(I, S) { \
uint8_t *__x__; \
for (__x__ = (uint8_t *)(I); \
__x__ < (((uint8_t *)(I)) + (S)); \
*__x__++ = (uint8_t)~0); \
}
/*
* Audio support ioctls.
*/
#define AIOC ('A'<<8)
#define AUDIO_GET_CH_NUMBER (AIOC|10)
#define AUDIO_GET_CH_TYPE (AIOC|11)
#define AUDIO_GET_NUM_CHS (AIOC|12)
#define AUDIO_GET_AD_DEV (AIOC|13)
#define AUDIO_GET_APM_DEV (AIOC|14)
#define AUDIO_GET_AS_DEV (AIOC|15)
/*
* audio_device_type_e - type of audio device the channel is associated with.
*/
enum audio_device_type {
UNDEFINED = 0, AUDIO = 1, AUDIOCTL = 2, WTABLE = 3, MIDI = 4,
ATIME = 5, USER1 = 9, USER2 = 10, USER3 = 11
};
typedef enum audio_device_type audio_device_type_e;
/*
* audio_channel_t - structure holds info on individual channels
*/
struct audio_channel {
/*
* Process ID of the process that has this channel open. If this is
* set to 0 then the channel isn't owned by any process and is free.
*/
pid_t pid;
/*
* When a channel is opened it is a given a new minor number, we always
* clone the device. The ch_number is directly related to that new
* minor number. Each open gets a unique channel number.
*/
uint_t ch_number;
/*
* Type of audio device opened. This cloned channel retains that
* type, which determines which Audio Personality Module to use.
*/
audio_device_type_e dev_type;
/*
* Each device type has a state structure which describes the hardware.
* Because each state structure is different we need to know the size
* for apps to allocate the correct space.
*/
size_t info_size;
/*
* The device type's state structure.
*/
void *info;
};
typedef struct audio_channel audio_channel_t;
#ifdef __cplusplus
}
#endif
#endif /* _SYS_AUDIO_H */
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