diff options
author | Thomas Bushnell <thomas@gnu.org> | 1997-02-25 21:28:37 +0000 |
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committer | Thomas Bushnell <thomas@gnu.org> | 1997-02-25 21:28:37 +0000 |
commit | f07a4c844da9f0ecae5bbee1ab94be56505f26f7 (patch) | |
tree | 12b07c7e578fc1a5f53dbfde2632408491ff2a70 /include/device/audio_status.h |
Initial source
Diffstat (limited to 'include/device/audio_status.h')
-rw-r--r-- | include/device/audio_status.h | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/include/device/audio_status.h b/include/device/audio_status.h new file mode 100644 index 0000000..26bd6c7 --- /dev/null +++ b/include/device/audio_status.h @@ -0,0 +1,168 @@ +/* + * Mach Operating System + * Copyright (c) 1993 Carnegie Mellon University + * All Rights Reserved. + * + * Permission to use, copy, modify and distribute this software and its + * documentation is hereby granted, provided that both the copyright + * notice and this permission notice appear in all copies of the + * software, derivative works or modified versions, and any portions + * thereof, and that both notices appear in supporting documentation. + * + * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" + * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR + * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. + * + * Carnegie Mellon requests users of this software to return to + * + * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU + * School of Computer Science + * Carnegie Mellon University + * Pittsburgh PA 15213-3890 + * + * any improvements or extensions that they make and grant Carnegie Mellon + * the rights to redistribute these changes. + */ +/* + * Copyright (c) 1991, 1992 The Regents of the University of California. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by the Computer Systems + * Engineering Group at Lawrence Berkeley Laboratory. + * 4. The name of the Laboratory may not be used to endorse or promote + * products derived from this software without specific prior written + * permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#ifndef _DEVICE_AUDIO_STATUS_H_ +#define _DEVICE_AUDIO_STATUS_H_ + +/* + * Access to ADC devices, such as the AMD 79C30A/32A. + */ + +/* + * Programmable gains, see tables in device drivers + * for detailed mapping to device specifics. + */ +#define AUDIO_MIN_GAIN (0) +#define AUDIO_MAX_GAIN (255) + +/* + * Encoding of audio samples + */ +#define AUDIO_ENCODING_ULAW (1) +#define AUDIO_ENCODING_ALAW (2) + +/* + * Selection of input/output jack + */ +#define AUDIO_MIKE 1 + +#define AUDIO_SPEAKER 1 +#define AUDIO_HEADPHONE 2 + +/* + * Programming information from/to user application. + * Only portions of this might be available on any given chip. + */ +struct audio_prinfo { + unsigned int sample_rate; + unsigned int channels; + unsigned int precision; + unsigned int encoding; + unsigned int gain; + unsigned int port; /* input/output jack */ + unsigned int seek; /* BSD extension */ + unsigned int ispare[3]; + unsigned int samples; + unsigned int eof; + + unsigned char pause; + unsigned char error; + unsigned char waiting; + unsigned char cspare[3]; + unsigned char open; + unsigned char active; + +}; + +struct audio_info { + struct audio_prinfo play; + struct audio_prinfo record; + unsigned int monitor_gain; + /* BSD extensions */ + unsigned int blocksize; /* input blocking threshold */ + unsigned int hiwat; /* output high water mark */ + unsigned int lowat; /* output low water mark */ + unsigned int backlog; /* samples of output backlog to gen. */ +}; + +typedef struct audio_info audio_info_t; + +#define AUDIO_INITINFO(p)\ + (void)memset((void *)(p), 0xff, sizeof(struct audio_info)) + +#define AUDIO_GETINFO _IOR('A', 21, audio_info_t) +#define AUDIO_SETINFO _IOWR('A', 22, audio_info_t) +#define AUDIO_DRAIN _IO('A', 23) +#define AUDIO_FLUSH _IO('A', 24) +#define AUDIO_WSEEK _IOR('A', 25, unsigned int) +#define AUDIO_RERROR _IOR('A', 26, int) +#define AUDIO_WERROR _IOR('A', 27, int) + +/* + * Low level interface to the amd79c30. + * Internal registers of the MAP block, + * the Main Audio Processor. + */ +struct mapreg { + unsigned short mr_x[8]; + unsigned short mr_r[8]; + unsigned short mr_gx; + unsigned short mr_gr; + unsigned short mr_ger; + unsigned short mr_stgr; + unsigned short mr_ftgr; + unsigned short mr_atgr; + unsigned char mr_mmr1; + unsigned char mr_mmr2; +}; + +#define AUDIO_GETMAP _IOR('A', 27, struct mapreg) +#define AUDIO_SETMAP _IOW('A', 28, struct mapreg) + +/* + * Compatibility with Sun interface + */ +struct audio_ioctl { + short control; + unsigned char data[46]; +}; + +#define AUDIOGETREG _IOWR('i',1,struct audio_ioctl) +#define AUDIOSETREG _IOW('i',2,struct audio_ioctl) + +#endif /* _DEVICE_AUDIO_STATUS_H_ */ |