freebsd-dev/sys/dev/sound/pcm/feeder_if.m

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# KOBJ
#
# Copyright (c) 2000 Cameron Grant <cg@freebsd.org>
# 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 <dev/sound/pcm/sound.h>
INTERFACE feeder;
CODE {
static int
feeder_noinit(struct pcm_feeder* feeder)
{
return 0;
}
static int
feeder_nofree(struct pcm_feeder* feeder)
{
return 0;
}
static int
feeder_noset(struct pcm_feeder* feeder, int what, int value)
{
return -1;
}
static int
feeder_noget(struct pcm_feeder* feeder, int what)
{
return -1;
}
};
METHOD int init {
struct pcm_feeder* feeder;
} DEFAULT feeder_noinit;
METHOD int free {
struct pcm_feeder* feeder;
} DEFAULT feeder_nofree;
METHOD int set {
struct pcm_feeder* feeder;
int what;
int value;
} DEFAULT feeder_noset;
METHOD int get {
struct pcm_feeder* feeder;
int what;
} DEFAULT feeder_noget;
METHOD int feed {
struct pcm_feeder* feeder;
struct pcm_channel* c;
u_int8_t* buffer;
u_int32_t count;
void* source;
};