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 * $FreeBSD$ 27 */ 28 29 struct snd_mixer *mixer_create(device_t dev, kobj_class_t cls, void *devinfo, 30 const char *desc); 31 int mixer_delete(struct snd_mixer *m); 32 int mixer_init(device_t dev, kobj_class_t cls, void *devinfo); 33 int mixer_uninit(device_t dev); 34 int mixer_reinit(device_t dev); 35 int mixer_ioctl_cmd(struct cdev *i_dev, u_long cmd, caddr_t arg, int mode, struct thread *td, int from); 36 int mixer_oss_mixerinfo(struct cdev *i_dev, oss_mixerinfo *mi); 37 38 int mixer_hwvol_init(device_t dev); 39 void mixer_hwvol_mute(device_t dev); 40 void mixer_hwvol_step(device_t dev, int left_step, int right_step); 41 42 int mixer_busy(struct snd_mixer *m); 43 44 int mix_set(struct snd_mixer *m, u_int dev, u_int left, u_int right); 45 int mix_get(struct snd_mixer *m, u_int dev); 46 int mix_setrecsrc(struct snd_mixer *m, u_int32_t src); 47 u_int32_t mix_getrecsrc(struct snd_mixer *m); 48 int mix_get_type(struct snd_mixer *m); 49 50 void mix_setdevs(struct snd_mixer *m, u_int32_t v); 51 void mix_setrecdevs(struct snd_mixer *m, u_int32_t v); 52 u_int32_t mix_getdevs(struct snd_mixer *m); 53 u_int32_t mix_getrecdevs(struct snd_mixer *m); 54 void mix_setparentchild(struct snd_mixer *m, u_int32_t parent, u_int32_t childs); 55 void mix_setrealdev(struct snd_mixer *m, u_int32_t dev, u_int32_t realdev); 56 u_int32_t mix_getparent(struct snd_mixer *m, u_int32_t dev); 57 u_int32_t mix_getchild(struct snd_mixer *m, u_int32_t dev); 58 void *mix_getdevinfo(struct snd_mixer *m); 59 struct mtx *mixer_get_lock(struct snd_mixer *m); 60 61 extern int mixer_count; 62 63 #define MIXER_CMD_DIRECT 0 /* send command within driver */ 64 #define MIXER_CMD_CDEV 1 /* send command from cdev/ioctl */ 65 66 #define MIXER_TYPE_PRIMARY 0 /* mixer_init() */ 67 #define MIXER_TYPE_SECONDARY 1 /* mixer_create() */ 68 69 /* 70 * this is a kludge to allow hiding of the struct snd_mixer definition 71 * 512 should be enough for all architectures 72 */ 73 #define MIXER_SIZE (512 + sizeof(struct kobj) + \ 74 sizeof(oss_mixer_enuminfo)) 75 76 #define MIXER_DECLARE(name) static DEFINE_CLASS(name, name ## _methods, MIXER_SIZE) 77