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freebsd/sys/dev/sound/pcm/fake.c

116 lines
2.9 KiB
C

/*
* 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.
*
* $FreeBSD$
*/
#include "pcm.h"
#include <dev/sound/pcm/sound.h>
/* channel interface */
static void *fkchan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir);
static int fkchan_setdir(void *data, int dir);
static int fkchan_setformat(void *data, u_int32_t format);
static int fkchan_setspeed(void *data, u_int32_t speed);
static int fkchan_setblocksize(void *data, u_int32_t blocksize);
static int fkchan_trigger(void *data, int go);
static int fkchan_getptr(void *data);
static pcmchan_caps *fkchan_getcaps(void *data);
static pcmchan_caps fk_caps = {
4000, 48000,
AFMT_STEREO | AFMT_U8 | AFMT_S8 | AFMT_S16_LE | AFMT_S16_BE | AFMT_U16_LE | AFMT_U16_BE
};
static pcm_channel fk_chantemplate = {
fkchan_init,
fkchan_setdir,
fkchan_setformat,
fkchan_setspeed,
fkchan_setblocksize,
fkchan_trigger,
fkchan_getptr,
fkchan_getcaps,
};
/* channel interface */
static void *
fkchan_init(void *devinfo, snd_dbuf *b, pcm_channel *c, int dir)
{
b->bufsize = 16384;
b->buf = malloc(b->bufsize, M_DEVBUF, M_NOWAIT);
return (void *)0xbabef00d;
}
static int
fkchan_setdir(void *data, int dir)
{
return 0;
}
static int
fkchan_setformat(void *data, u_int32_t format)
{
return 0;
}
static int
fkchan_setspeed(void *data, u_int32_t speed)
{
return speed;
}
static int
fkchan_setblocksize(void *data, u_int32_t blocksize)
{
return blocksize;
}
static int
fkchan_trigger(void *data, int go)
{
return 0;
}
static int
fkchan_getptr(void *data)
{
return 0;
}
static pcmchan_caps *
fkchan_getcaps(void *data)
{
return &fk_caps;
}
int
fkchan_setup(pcm_channel *c)
{
*c = fk_chantemplate;
return 0;
}