2 * Copyright (c) 2005-2009 Ariff Abdullah <ariff@FreeBSD.org>
3 * Copyright (c) 1999 Cameron Grant <cg@FreeBSD.org>
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * $FreeBSD: head/sys/dev/sound/pcm/mixer.h 246454 2013-02-07 08:20:03Z hselasky $
33 struct snd_mixer *mixer_create(device_t dev, kobj_class_t cls, void *devinfo,
35 int mixer_delete(struct snd_mixer *m);
36 int mixer_init(device_t dev, kobj_class_t cls, void *devinfo);
37 int mixer_uninit(device_t dev);
38 int mixer_reinit(device_t dev);
39 int mixer_ioctl_cmd(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode, int from);
40 int mixer_oss_mixerinfo(struct cdev *i_dev, oss_mixerinfo *mi);
42 int mixer_hwvol_init(device_t dev);
43 void mixer_hwvol_mute_locked(struct snd_mixer *m);
44 void mixer_hwvol_mute(device_t dev);
45 void mixer_hwvol_step_locked(struct snd_mixer *m, int l_step, int r_step);
46 void mixer_hwvol_step(device_t dev, int left_step, int right_step);
48 int mixer_busy(struct snd_mixer *m);
50 int mix_get_locked(struct snd_mixer *m, u_int dev, int *pleft, int *pright);
51 int mix_set_locked(struct snd_mixer *m, u_int dev, int left, int right);
52 int mix_set(struct snd_mixer *m, u_int dev, u_int left, u_int right);
53 int mix_get(struct snd_mixer *m, u_int dev);
54 int mix_setrecsrc(struct snd_mixer *m, u_int32_t src);
55 u_int32_t mix_getrecsrc(struct snd_mixer *m);
56 int mix_get_type(struct snd_mixer *m);
58 void mix_setdevs(struct snd_mixer *m, u_int32_t v);
59 void mix_setrecdevs(struct snd_mixer *m, u_int32_t v);
60 u_int32_t mix_getdevs(struct snd_mixer *m);
61 u_int32_t mix_getrecdevs(struct snd_mixer *m);
62 void mix_setparentchild(struct snd_mixer *m, u_int32_t parent, u_int32_t childs);
63 void mix_setrealdev(struct snd_mixer *m, u_int32_t dev, u_int32_t realdev);
64 u_int32_t mix_getparent(struct snd_mixer *m, u_int32_t dev);
65 u_int32_t mix_getchild(struct snd_mixer *m, u_int32_t dev);
66 void *mix_getdevinfo(struct snd_mixer *m);
67 struct lock *mixer_get_lock(struct snd_mixer *m);
69 extern int mixer_count;
71 #define MIXER_CMD_DIRECT 0 /* send command within driver */
72 #define MIXER_CMD_CDEV 1 /* send command from cdev/ioctl */
74 #define MIXER_TYPE_PRIMARY 0 /* mixer_init() */
75 #define MIXER_TYPE_SECONDARY 1 /* mixer_create() */
78 * this is a kludge to allow hiding of the struct snd_mixer definition
79 * 512 should be enough for all architectures
81 #define MIXER_SIZE (512 + sizeof(struct kobj) + \
82 sizeof(oss_mixer_enuminfo))
84 #define MIXER_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, MIXER_SIZE)
86 #endif /* _PCM_MIXER_H_ */