1 /*- 2 * Copyright (c) 1999 Cameron Grant <cg@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: src/sys/dev/sound/pcm/mixer.h,v 1.14.2.1 2007/05/13 20:53:39 ariff Exp $ 27 * $DragonFly: src/sys/dev/sound/pcm/mixer.h,v 1.6 2007/06/16 19:48:05 hasso Exp $ 28 */ 29 30 int mixer_init(device_t dev, kobj_class_t cls, void *devinfo); 31 int mixer_uninit(device_t dev); 32 int mixer_reinit(device_t dev); 33 d_ioctl_t mixer_ioctl; 34 35 int mixer_hwvol_init(device_t dev); 36 void mixer_hwvol_mute(device_t dev); 37 void mixer_hwvol_step(device_t dev, int left_step, int right_step); 38 39 void mix_setdevs(struct snd_mixer *m, u_int32_t v); 40 void mix_setrecdevs(struct snd_mixer *m, u_int32_t v); 41 u_int32_t mix_getdevs(struct snd_mixer *m); 42 u_int32_t mix_getrecdevs(struct snd_mixer *m); 43 void mix_setparentchild(struct snd_mixer *m, u_int32_t parent, u_int32_t childs); 44 void mix_setrealdev(struct snd_mixer *m, u_int32_t dev, u_int32_t realdev); 45 u_int32_t mix_getparent(struct snd_mixer *m, u_int32_t dev); 46 u_int32_t mix_getchild(struct snd_mixer *m, u_int32_t dev); 47 void *mix_getdevinfo(struct snd_mixer *m); 48 49 /* 50 * this is a kludge to allow hiding of the struct snd_mixer definition 51 * 512 should be enough for all architectures 52 */ 53 #define MIXER_SIZE (512 + sizeof(struct kobj)) 54 55 #define MIXER_DECLARE(name) DEFINE_CLASS(name, name ## _methods, MIXER_SIZE) 56