1 /* $NetBSD: auccvar.h,v 1.6 2005/12/11 12:16:28 christos Exp $ */ 2 /* 3 * Copyright (c) 1991-1993 Regents of the University of California. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by the Computer Systems 17 * Engineering Group at Lawrence Berkeley Laboratory. 18 * 4. Neither the name of the University nor of the Laboratory may be used 19 * to endorse or promote products derived from this software without 20 * specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 36 #ifndef _AUCCVAR_H_ 37 #define _AUCCVAR_H_ 38 39 #define AUDIO_BUF_SIZE 8192 40 41 /* per channel data */ 42 typedef struct aucc_data { 43 u_int nd_freq; /* frequency */ 44 u_int nd_per; /* period = clock/freq */ 45 u_int nd_volume; /* 0..63 */ 46 u_int nd_busy; /* 1, if channel is busy */ 47 u_short *nd_dma; /* pointer to dma buffer */ 48 u_int nd_dmalength; /* length of dma data */ 49 int nd_mask; /* mask of active channels, 50 together with this one */ 51 void (*nd_intr)(void *); /* interrupt routine */ 52 void *nd_intrdata; /* interrupt data */ 53 int nd_doublebuf; /* double buffering */ 54 } aucc_data_t; 55 56 57 /* mixer sets */ 58 #define AUCC_CHANNELS 0 59 60 /* mixer values */ 61 #define AUCC_VOLUME 1 62 #define AUCC_OUTPUT_CLASS 2 63 64 #endif /* _AUCCVAR_H_ */ 65