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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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