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 35 struct snd_mixer *mixer_create(device_t dev, kobj_class_t cls, void *devinfo, 36 const char *desc); 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); 43 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); 49 50 int mixer_busy(struct snd_mixer *m); 51 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); 59 device_t mix_get_dev(struct snd_mixer *m); 60 61 void mix_setdevs(struct snd_mixer *m, u_int32_t v); 62 void mix_setrecdevs(struct snd_mixer *m, u_int32_t v); 63 u_int32_t mix_getdevs(struct snd_mixer *m); 64 u_int32_t mix_getrecdevs(struct snd_mixer *m); 65 void mix_setparentchild(struct snd_mixer *m, u_int32_t parent, u_int32_t childs); 66 void mix_setrealdev(struct snd_mixer *m, u_int32_t dev, u_int32_t realdev); 67 u_int32_t mix_getparent(struct snd_mixer *m, u_int32_t dev); 68 u_int32_t mix_getchild(struct snd_mixer *m, u_int32_t dev); 69 void *mix_getdevinfo(struct snd_mixer *m); 70 struct mtx *mixer_get_lock(struct snd_mixer *m); 71 72 extern 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