65 lines
2.6 KiB
C
65 lines
2.6 KiB
C
/* $NetBSD: auccvar.h,v 1.3 1997/07/04 21:00:18 is Exp $ */
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/*
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* Copyright (c) 1991-1993 Regents of the University of California.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the Computer Systems
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* Engineering Group at Lawrence Berkeley Laboratory.
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* 4. Neither the name of the University nor of the Laboratory may be used
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* to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _AUCCVAR_H_
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#define _AUCCVAR_H_
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#define AUDIO_BUF_SIZE 8192
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/* per channel data */
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typedef struct aucc_data {
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u_int nd_freq; /* frequency */
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u_int nd_per; /* period = clock/freq */
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u_int nd_volume; /* 0..63 */
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u_int nd_busy; /* 1, if channel is busy */
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u_short *nd_dma; /* pointer to dma buffer */
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u_int nd_dmalength; /* length of dma data */
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int nd_mask; /* mask of active channels,
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together with this one */
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void (*nd_intr)(void *); /* interrupt routine */
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void *nd_intrdata; /* interrupt data */
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int nd_doublebuf; /* double buffering */
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} aucc_data_t;
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/* mixer sets */
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#define AUCC_CHANNELS 0
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/* mixer values */
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#define AUCC_VOLUME 1
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#define AUCC_OUTPUT_CLASS 2
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#endif /* _AUCCVAR_H_ */
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