sys/arch/amiga/dev/auccvar.h

   1 /*      $NetBSD: auccvar.h,v 1.4.16.1 2005/01/17 19:29:12 skrll 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_ */