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/*
* Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*
* $FreeBSD$
*/
#define ISA_DMA(b) (((b)->chan >= 0 && (b)->chan != 4 && (b)->chan < 8))
int sndbuf_alloc(snd_dbuf *b, bus_dma_tag_t dmatag, int size);
int sndbuf_setup(snd_dbuf *b, void *buf, int size);
void sndbuf_free(snd_dbuf *b);
int sndbuf_resize(snd_dbuf *b, int blkcnt, int blksz);
void sndbuf_reset(snd_dbuf *b);
void sndbuf_clear(snd_dbuf *b, int length);
int sndbuf_setfmt(snd_dbuf *b, u_int32_t fmt);
int sndbuf_getbps(snd_dbuf *b);
void *sndbuf_getbuf(snd_dbuf *b);
int sndbuf_getsize(snd_dbuf *b);
int sndbuf_runsz(snd_dbuf *b);
int sndbuf_isadmasetup(snd_dbuf *b, struct resource *drq);
int sndbuf_isadmasetdir(snd_dbuf *b, int dir);
void sndbuf_isadma(snd_dbuf *b, int go);
int sndbuf_isadmaptr(snd_dbuf *b);
void sndbuf_isadmabounce(snd_dbuf *b);
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