1 /*- 2 * Copyright (c) 2005-2009 Ariff Abdullah <ariff@FreeBSD.org> 3 * Copyright (c) 1999 Cameron Grant <cg@FreeBSD.org> 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 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. 14 * 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 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD: head/sys/dev/sound/pcm/mixer.h 246454 2013-02-07 08:20:03Z hselasky $ 28 */ 29 30 #ifndef _PCM_MIXER_H_ 31 #define _PCM_MIXER_H_ 32 33 struct snd_mixer *mixer_create(device_t dev, kobj_class_t cls, void *devinfo, 34 const char *desc); 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); 41 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); 47 48 int mixer_busy(struct snd_mixer *m); 49 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); 57 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); 68 69 extern int mixer_count; 70 71 #define MIXER_CMD_DIRECT 0 /* send command within driver */ 72 #define MIXER_CMD_CDEV 1 /* send command from cdev/ioctl */ 73 74 #define MIXER_TYPE_PRIMARY 0 /* mixer_init() */ 75 #define MIXER_TYPE_SECONDARY 1 /* mixer_create() */ 76 77 /* 78 * this is a kludge to allow hiding of the struct snd_mixer definition 79 * 512 should be enough for all architectures 80 */ 81 #define MIXER_SIZE (512 + sizeof(struct kobj) + \ 82 sizeof(oss_mixer_enuminfo)) 83 84 #define MIXER_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, MIXER_SIZE) 85 86 #endif /* _PCM_MIXER_H_ */ 87