2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
4 * Copyright (c) 2005-2009 Ariff Abdullah <ariff@FreeBSD.org>
5 * Copyright (c) 1999 Cameron Grant <cg@FreeBSD.org>
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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.
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
35 struct snd_mixer *mixer_create(device_t dev, kobj_class_t cls, void *devinfo,
37 int mixer_delete(struct snd_mixer *m);
38 int mixer_init(device_t dev, kobj_class_t cls, void *devinfo);
39 int mixer_uninit(device_t dev);
40 int mixer_reinit(device_t dev);
41 int mixer_ioctl_cmd(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode, struct thread *td, int from);
42 int mixer_oss_mixerinfo(struct cdev *i_dev, oss_mixerinfo *mi);
44 int mixer_hwvol_init(device_t dev);
45 void mixer_hwvol_mute_locked(struct snd_mixer *m);
46 void mixer_hwvol_mute(device_t dev);
47 void mixer_hwvol_step_locked(struct snd_mixer *m, int l_step, int r_step);
48 void mixer_hwvol_step(device_t dev, int left_step, int right_step);
50 int mixer_busy(struct snd_mixer *m);
52 int mix_get_locked(struct snd_mixer *m, u_int dev, int *pleft, int *pright);
53 int mix_set_locked(struct snd_mixer *m, u_int dev, int left, int right);
54 int mix_set(struct snd_mixer *m, u_int dev, u_int left, u_int right);
55 int mix_get(struct snd_mixer *m, u_int dev);
56 int mix_setrecsrc(struct snd_mixer *m, u_int32_t src);
57 u_int32_t mix_getrecsrc(struct snd_mixer *m);
58 int mix_get_type(struct snd_mixer *m);
60 void mix_setdevs(struct snd_mixer *m, u_int32_t v);
61 void mix_setrecdevs(struct snd_mixer *m, u_int32_t v);
62 u_int32_t mix_getdevs(struct snd_mixer *m);
63 u_int32_t mix_getrecdevs(struct snd_mixer *m);
64 void mix_setparentchild(struct snd_mixer *m, u_int32_t parent, u_int32_t childs);
65 void mix_setrealdev(struct snd_mixer *m, u_int32_t dev, u_int32_t realdev);
66 u_int32_t mix_getparent(struct snd_mixer *m, u_int32_t dev);
67 u_int32_t mix_getchild(struct snd_mixer *m, u_int32_t dev);
68 void *mix_getdevinfo(struct snd_mixer *m);
69 struct mtx *mixer_get_lock(struct snd_mixer *m);
71 extern int mixer_count;
73 #define MIXER_CMD_DIRECT 0 /* send command within driver */
74 #define MIXER_CMD_CDEV 1 /* send command from cdev/ioctl */
76 #define MIXER_TYPE_PRIMARY 0 /* mixer_init() */
77 #define MIXER_TYPE_SECONDARY 1 /* mixer_create() */
80 * this is a kludge to allow hiding of the struct snd_mixer definition
81 * 512 should be enough for all architectures
83 #define MIXER_SIZE (512 + sizeof(struct kobj) + \
84 sizeof(oss_mixer_enuminfo))
86 #define MIXER_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, MIXER_SIZE)
88 #endif /* _PCM_MIXER_H_ */