sys/dev/sound/pcm/mixer.h

   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)