1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 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 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, struct thread *td, 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_set(struct snd_mixer *m, u_int dev, u_int left, u_int right); 51 int mix_get(struct snd_mixer *m, u_int dev); 52 int mix_setrecsrc(struct snd_mixer *m, u_int32_t src); 53 u_int32_t mix_getrecsrc(struct snd_mixer *m); 54 device_t mix_get_dev(struct snd_mixer *m); 55 56 void mix_setdevs(struct snd_mixer *m, u_int32_t v); 57 void mix_setrecdevs(struct snd_mixer *m, u_int32_t v); 58 void mix_setmutedevs(struct snd_mixer *m, u_int32_t v); 59 u_int32_t mix_getdevs(struct snd_mixer *m); 60 u_int32_t mix_getrecdevs(struct snd_mixer *m); 61 u_int32_t mix_getmutedevs(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 void *mix_getdevinfo(struct snd_mixer *m); 66 struct mtx *mixer_get_lock(struct snd_mixer *m); 67 68 #define MIXER_CMD_DIRECT 0 /* send command within driver */ 69 #define MIXER_CMD_CDEV 1 /* send command from cdev/ioctl */ 70 71 #define MIXER_TYPE_PRIMARY 0 /* mixer_init() */ 72 #define MIXER_TYPE_SECONDARY 1 /* mixer_create() */ 73 74 /* 75 * this is a kludge to allow hiding of the struct snd_mixer definition 76 * 512 should be enough for all architectures 77 */ 78 #define MIXER_SIZE (512 + sizeof(struct kobj) + \ 79 sizeof(oss_mixer_enuminfo)) 80 81 #define MIXER_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, MIXER_SIZE) 82 83 #endif /* _PCM_MIXER_H_ */ 84