diff options
Diffstat (limited to 'sys/dev/sound/pcm/buffer.h')
| -rw-r--r-- | sys/dev/sound/pcm/buffer.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/sys/dev/sound/pcm/buffer.h b/sys/dev/sound/pcm/buffer.h new file mode 100644 index 0000000..62058ce --- /dev/null +++ b/sys/dev/sound/pcm/buffer.h @@ -0,0 +1,49 @@ +/* + * 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); + + |
