1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2005-2009 Ariff Abdullah <ariff@FreeBSD.org>
5 * Copyright (c) 1999 Cameron Grant <cg@FreeBSD.org>
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 *    notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 *    notice, this list of conditions and the following disclaimer in the
15 *    documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * $FreeBSD$
30 */
31
32#ifndef _PCM_MIXER_H_
33#define	_PCM_MIXER_H_
34
35struct snd_mixer *mixer_create(device_t dev, kobj_class_t cls, void *devinfo,
36    const char *desc);
37int mixer_delete(struct snd_mixer *m);
38int mixer_init(device_t dev, kobj_class_t cls, void *devinfo);
39int mixer_uninit(device_t dev);
40int mixer_reinit(device_t dev);
41int mixer_ioctl_cmd(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode, struct thread *td, int from);
42int mixer_oss_mixerinfo(struct cdev *i_dev, oss_mixerinfo *mi);
43
44int mixer_hwvol_init(device_t dev);
45void mixer_hwvol_mute_locked(struct snd_mixer *m);
46void mixer_hwvol_mute(device_t dev);
47void mixer_hwvol_step_locked(struct snd_mixer *m, int l_step, int r_step);
48void mixer_hwvol_step(device_t dev, int left_step, int right_step);
49
50int mixer_busy(struct snd_mixer *m);
51
52int mix_get_locked(struct snd_mixer *m, u_int dev, int *pleft, int *pright);
53int mix_set_locked(struct snd_mixer *m, u_int dev, int left, int right);
54int mix_set(struct snd_mixer *m, u_int dev, u_int left, u_int right);
55int mix_get(struct snd_mixer *m, u_int dev);
56int mix_setrecsrc(struct snd_mixer *m, u_int32_t src);
57u_int32_t mix_getrecsrc(struct snd_mixer *m);
58int mix_get_type(struct snd_mixer *m);
59device_t mix_get_dev(struct snd_mixer *m);
60
61void mix_setdevs(struct snd_mixer *m, u_int32_t v);
62void mix_setrecdevs(struct snd_mixer *m, u_int32_t v);
63u_int32_t mix_getdevs(struct snd_mixer *m);
64u_int32_t mix_getrecdevs(struct snd_mixer *m);
65void mix_setparentchild(struct snd_mixer *m, u_int32_t parent, u_int32_t childs);
66void mix_setrealdev(struct snd_mixer *m, u_int32_t dev, u_int32_t realdev);
67u_int32_t mix_getparent(struct snd_mixer *m, u_int32_t dev);
68u_int32_t mix_getchild(struct snd_mixer *m, u_int32_t dev);
69void *mix_getdevinfo(struct snd_mixer *m);
70struct mtx *mixer_get_lock(struct snd_mixer *m);
71
72extern int mixer_count;
73
74#define MIXER_CMD_DIRECT	0	/* send command within driver   */
75#define MIXER_CMD_CDEV		1	/* send command from cdev/ioctl */
76
77#define MIXER_TYPE_PRIMARY	0	/* mixer_init()   */
78#define MIXER_TYPE_SECONDARY	1	/* mixer_create() */
79
80/*
81 * this is a kludge to allow hiding of the struct snd_mixer definition
82 * 512 should be enough for all architectures
83 */
84#define MIXER_SIZE	(512 + sizeof(struct kobj) +		\
85			    sizeof(oss_mixer_enuminfo))
86
87#define MIXER_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, MIXER_SIZE)
88
89#endif				/* _PCM_MIXER_H_ */
90