2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * $FreeBSD: src/sys/dev/sound/pcm/feeder.h,v 1.2.2.4 2002/04/22 15:49:36 cg Exp $
29 struct pcm_feederdesc {
39 struct pcm_feederdesc *desc;
46 struct pcm_feederdesc *desc, desc_static;
48 struct feeder_class *class;
49 struct pcm_feeder *source, *parent;
53 void feeder_register(void *p);
54 struct feeder_class *feeder_getclass(struct pcm_feederdesc *desc);
56 u_int32_t chn_fmtchain(struct pcm_channel *c, u_int32_t *to);
57 int chn_addfeeder(struct pcm_channel *c, struct feeder_class *fc, struct pcm_feederdesc *desc);
58 int chn_removefeeder(struct pcm_channel *c);
59 struct pcm_feeder *chn_findfeeder(struct pcm_channel *c, u_int32_t type);
61 #define FEEDER_DECLARE(feeder, palign, pdata) \
62 static struct feeder_class feeder ## _class = { \
64 methods: feeder ## _methods, \
65 size: sizeof(struct pcm_feeder), \
67 desc: feeder ## _desc, \
70 SYSINIT(feeder, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder ## _class);
74 #define FEEDER_MIXER 3
76 #define FEEDER_FILTER 5
77 #define FEEDER_VOLUME 6
78 #define FEEDER_LAST FEEDER_VOLUME
80 #define FEEDRATE_SRC 1
81 #define FEEDRATE_DST 2