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/*-
* Copyright (c) 1999 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.
*
* $FreeBSD$
*/
struct pcm_feederdesc {
u_int32_t type;
u_int32_t in, out;
u_int32_t flags;
int idx;
};
struct feeder_class {
KOBJ_CLASS_FIELDS;
int align;
struct pcm_feederdesc *desc;
void *data;
};
struct pcm_feeder {
KOBJ_FIELDS;
int align;
struct pcm_feederdesc *desc, desc_static;
void *data;
struct feeder_class *class;
struct pcm_feeder *source, *parent;
};
void feeder_register(void *p);
struct feeder_class *feeder_getclass(struct pcm_feederdesc *desc);
u_int32_t chn_fmtchain(struct pcm_channel *c, u_int32_t *to);
int chn_addfeeder(struct pcm_channel *c, struct feeder_class *fc, struct pcm_feederdesc *desc);
int chn_removefeeder(struct pcm_channel *c);
struct pcm_feeder *chn_findfeeder(struct pcm_channel *c, u_int32_t type);
void feeder_printchain(struct pcm_feeder *head);
#define FEEDER_DECLARE(feeder, palign, pdata) \
static struct feeder_class feeder ## _class = { \
.name = #feeder, \
.methods = feeder ## _methods, \
.size = sizeof(struct pcm_feeder), \
.align = palign, \
.desc = feeder ## _desc, \
.data = pdata, \
}; \
SYSINIT(feeder, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder ## _class);
#define FEEDER_ROOT 1
#define FEEDER_FMT 2
#define FEEDER_MIXER 3
#define FEEDER_RATE 4
#define FEEDER_FILTER 5
#define FEEDER_VOLUME 6
#define FEEDER_LAST FEEDER_VOLUME
#define FEEDRATE_SRC 1
#define FEEDRATE_DST 2
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