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useless, as of the new sound drivers.

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cgd 1995-04-17 15:29:06 +00:00
parent dfeb819b45
commit 8fe775c0de
1 changed files with 0 additions and 75 deletions
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75
sys/arch/i386/isa/bsd_audiovar.h
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/* $NetBSD: bsd_audiovar.h,v 1.2 1994/10/27 04:16:53 cgd Exp $ */
/*
* Copyright (c) 1991-1993 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. Neither the name of the University nor of the Laboratory may 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.
*
* Header: audiovar.h,v 1.3 93/07/18 14:07:25 mccanne Exp (LBL)
*/
#define AUCB_SIZE 4096
#define AUCB_MOD(k) ((k) & (AUCB_SIZE - 1))
#define AUCB_INIT(cb) ((cb)->cb_head = (cb)->cb_tail = (cb)->cb_drops = \
(cb)->cb_pdrops = (cb)->cb_tdrops = (cb)->cb_cc = 0)
#define AUCB_EMPTY(cb) ((cb)->cb_head == (cb)->cb_tail)
#define AUCB_FULL(cb) (AUCB_MOD((cb)->cb_tail + 1) == (cb)->cb_head)
#define AUCB_LEN(cb) (AUCB_MOD((cb)->cb_tail - (cb)->cb_head))
#define MAXBLKSIZE (AUCB_SIZE / 2)
#define DEFBLKSIZE 128
#ifndef LOCORE
/*
* aucb's are used for communication between the trap handler and
* the software interrupt.
*/
struct aucb {
int cb_thresh; /* threshold for wakeup */
u_char *cb_cp;
u_char *cb_bp;
u_char *cb_ep;
};
struct auio {
u_long au_stamp; /* time stamp */
int au_lowat; /* xmit low water mark (for wakeup) */
int au_hiwat; /* xmit high water mark (for wakeup) */
int au_blksize; /* recv block (chunk) size */
int au_backlog; /* # samples of xmit backlog to gen. */
#ifdef notdef
struct aucb au_rb; /* read (recv) buffer */
struct aucb au_wb; /* write (xmit) buffer */
#endif
struct aucb au_cb;
};
#endif