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Annotation of Gnu-Mach/include/device/audio_status.h, revision 1.1

1.1     ! root        1: /* 
        !             2:  * Mach Operating System
        !             3:  * Copyright (c) 1993 Carnegie Mellon University
        !             4:  * All Rights Reserved.
        !             5:  * 
        !             6:  * Permission to use, copy, modify and distribute this software and its
        !             7:  * documentation is hereby granted, provided that both the copyright
        !             8:  * notice and this permission notice appear in all copies of the
        !             9:  * software, derivative works or modified versions, and any portions
        !            10:  * thereof, and that both notices appear in supporting documentation.
        !            11:  * 
        !            12:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            13:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            14:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            15:  * 
        !            16:  * Carnegie Mellon requests users of this software to return to
        !            17:  * 
        !            18:  *  Software Distribution Coordinator  or  [email protected]
        !            19:  *  School of Computer Science
        !            20:  *  Carnegie Mellon University
        !            21:  *  Pittsburgh PA 15213-3890
        !            22:  * 
        !            23:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            24:  * the rights to redistribute these changes.
        !            25:  */
        !            26: /*
        !            27:  * Copyright (c) 1991, 1992 The Regents of the University of California.
        !            28:  * All rights reserved.
        !            29:  *
        !            30:  * Redistribution and use in source and binary forms, with or without
        !            31:  * modification, are permitted provided that the following conditions
        !            32:  * are met:
        !            33:  * 1. Redistributions of source code must retain the above copyright
        !            34:  *    notice, this list of conditions and the following disclaimer.
        !            35:  * 2. Redistributions in binary form must reproduce the above copyright
        !            36:  *    notice, this list of conditions and the following disclaimer in the
        !            37:  *    documentation and/or other materials provided with the distribution.
        !            38:  * 3. All advertising materials mentioning features or use of this software
        !            39:  *    must display the following acknowledgement:
        !            40:  *     This product includes software developed by the Computer Systems
        !            41:  *     Engineering Group at Lawrence Berkeley Laboratory.
        !            42:  * 4. The name of the Laboratory may not be used to endorse or promote 
        !            43:  *    products derived from this software without specific prior written 
        !            44:  *    permission.
        !            45:  *
        !            46:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            47:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            48:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            49:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            50:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            51:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            52:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            53:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            54:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            55:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            56:  * SUCH DAMAGE.
        !            57:  */
        !            58: 
        !            59: #ifndef _DEVICE_AUDIO_STATUS_H_
        !            60: #define _DEVICE_AUDIO_STATUS_H_
        !            61: 
        !            62: /*
        !            63:  *     Access to ADC devices, such as the AMD 79C30A/32A.
        !            64:  */
        !            65: 
        !            66: /*
        !            67:  * Programmable gains, see tables in device drivers
        !            68:  * for detailed mapping to device specifics.
        !            69:  */
        !            70: #define AUDIO_MIN_GAIN (0)
        !            71: #define AUDIO_MAX_GAIN (255)
        !            72: 
        !            73: /*
        !            74:  * Encoding of audio samples
        !            75:  */
        !            76: #define AUDIO_ENCODING_ULAW (1)
        !            77: #define AUDIO_ENCODING_ALAW (2)
        !            78: 
        !            79: /*
        !            80:  * Selection of input/output jack
        !            81:  */
        !            82: #define        AUDIO_MIKE              1
        !            83: 
        !            84: #define AUDIO_SPEAKER          1
        !            85: #define AUDIO_HEADPHONE                2
        !            86: 
        !            87: /*
        !            88:  * Programming information from/to user application.
        !            89:  * Only portions of this might be available on any given chip.
        !            90:  */
        !            91: struct audio_prinfo {
        !            92:        unsigned int    sample_rate;
        !            93:        unsigned int    channels;
        !            94:        unsigned int    precision;
        !            95:        unsigned int    encoding;
        !            96:        unsigned int    gain;
        !            97:        unsigned int    port;           /* input/output jack */
        !            98:        unsigned int    seek;           /* BSD extension */
        !            99:        unsigned int    ispare[3];
        !           100:        unsigned int    samples;
        !           101:        unsigned int    eof;
        !           102: 
        !           103:        unsigned char   pause;
        !           104:        unsigned char   error;
        !           105:        unsigned char   waiting;
        !           106:        unsigned char   cspare[3];
        !           107:        unsigned char   open;
        !           108:        unsigned char   active;
        !           109: 
        !           110: };
        !           111: 
        !           112: struct audio_info {
        !           113:        struct  audio_prinfo play;
        !           114:        struct  audio_prinfo record;
        !           115:        unsigned int    monitor_gain;
        !           116:        /* BSD extensions */
        !           117:        unsigned int    blocksize;      /* input blocking threshold */
        !           118:        unsigned int    hiwat;          /* output high water mark */
        !           119:        unsigned int    lowat;          /* output low water mark */
        !           120:        unsigned int    backlog;        /* samples of output backlog to gen. */
        !           121: };
        !           122: 
        !           123: typedef struct audio_info audio_info_t;
        !           124: 
        !           125: #define AUDIO_INITINFO(p)\
        !           126:        (void)memset((void *)(p), 0xff, sizeof(struct audio_info))
        !           127: 
        !           128: #define AUDIO_GETINFO  _IOR('A', 21, audio_info_t)
        !           129: #define AUDIO_SETINFO  _IOWR('A', 22, audio_info_t)
        !           130: #define AUDIO_DRAIN    _IO('A', 23)
        !           131: #define AUDIO_FLUSH    _IO('A', 24)
        !           132: #define AUDIO_WSEEK    _IOR('A', 25, unsigned int)
        !           133: #define AUDIO_RERROR   _IOR('A', 26, int)
        !           134: #define AUDIO_WERROR   _IOR('A', 27, int)
        !           135: 
        !           136: /*
        !           137:  * Low level interface to the amd79c30.
        !           138:  * Internal registers of the MAP block,
        !           139:  * the Main Audio Processor.
        !           140:  */
        !           141: struct mapreg {
        !           142:        unsigned short  mr_x[8];
        !           143:        unsigned short  mr_r[8];
        !           144:        unsigned short  mr_gx;
        !           145:        unsigned short  mr_gr;
        !           146:        unsigned short  mr_ger;
        !           147:        unsigned short  mr_stgr;
        !           148:        unsigned short  mr_ftgr;
        !           149:        unsigned short  mr_atgr;
        !           150:        unsigned char   mr_mmr1;
        !           151:        unsigned char   mr_mmr2;
        !           152: };
        !           153: 
        !           154: #define AUDIO_GETMAP   _IOR('A', 27, struct mapreg)
        !           155: #define        AUDIO_SETMAP    _IOW('A', 28, struct mapreg)
        !           156: 
        !           157: /*
        !           158:  * Compatibility with Sun interface
        !           159:  */
        !           160: struct audio_ioctl {
        !           161:        short   control;
        !           162:        unsigned char   data[46];
        !           163: };
        !           164: 
        !           165: #define AUDIOGETREG            _IOWR('i',1,struct audio_ioctl)
        !           166: #define AUDIOSETREG            _IOW('i',2,struct audio_ioctl)
        !           167: 
        !           168: #endif /* _DEVICE_AUDIO_STATUS_H_ */

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