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Diffstat (limited to 'sys/dev/sound/pcm/mixer.h')
| -rw-r--r-- | sys/dev/sound/pcm/mixer.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/sys/dev/sound/pcm/mixer.h b/sys/dev/sound/pcm/mixer.h new file mode 100644 index 0000000..4f51bf2 --- /dev/null +++ b/sys/dev/sound/pcm/mixer.h @@ -0,0 +1,50 @@ +/* + * Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +int mixer_init(device_t dev, kobj_class_t cls, void *devinfo); +int mixer_uninit(device_t dev); +int mixer_reinit(device_t dev); +int mixer_ioctl(dev_t i_dev, u_long cmd, caddr_t arg, int mode, struct thread *td); + +int mixer_hwvol_init(device_t dev); +void mixer_hwvol_mute(device_t dev); +void mixer_hwvol_step(device_t dev, int left_step, int right_step); + +void mix_setdevs(struct snd_mixer *m, u_int32_t v); +void mix_setrecdevs(struct snd_mixer *m, u_int32_t v); +u_int32_t mix_getdevs(struct snd_mixer *m); +u_int32_t mix_getrecdevs(struct snd_mixer *m); +void *mix_getdevinfo(struct snd_mixer *m); + +/* + * this is a kludge to allow hiding of the struct snd_mixer definition + * 512 should be enough for all architectures + */ +#define MIXER_SIZE (512 + sizeof(struct kobj)) + +#define MIXER_DECLARE(name) DEFINE_CLASS(name, name ## _methods, MIXER_SIZE) |
