1/*
2 * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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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
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/dev/sound/pcm/feeder.h 66308 2000-09-23 22:11:32Z cg $
27 */
28
29void feeder_register(void *p);
30pcm_feeder *feeder_get(struct pcm_feederdesc *desc);
31pcm_feeder *feeder_getroot(void);
32int feeder_set(pcm_feeder *feeder, int what, int value);
33
34u_int32_t chn_fmtchain(pcm_channel *c, u_int32_t *to);
35int chn_addfeeder(pcm_channel *c, pcm_feeder *f);
36int chn_removefeeder(pcm_channel *c);
37pcm_feeder *chn_findfeeder(pcm_channel *c, u_int32_t type);
38
39#define FEEDER_DECLARE(feeder) SYSINIT(feeder, SI_SUB_DRIVERS, SI_ORDER_MIDDLE, feeder_register, &feeder)
40
41#define FEEDER_ROOT 1
42#define FEEDER_FMT 2
43#define FEEDER_RATE 3
44#define FEEDER_FILTER 4
45#define FEEDER_VOLUME 5
46#define FEEDER_LAST FEEDER_VOLUME
47
48#define FEEDRATE_SRC 1
49#define FEEDRATE_DST 2
50
51