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66ef8af5b0
this introduces a new buffering mechanism which results in dramatic simplification of the channel manager. as several structures have changed, we take the opportunity to move their definitions into the source files where they are used, make them private and de-typedef them. the sound drivers are updated to use snd_setup_intr instead of bus_setup_intr, and to comply with the de-typedefed structures. the ac97, mixer and channel layers have been updated with finegrained locking, as have some drivers- not all though. the rest will follow soon.
53 lines
2.3 KiB
C
53 lines
2.3 KiB
C
/*
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* Copyright (c) 1999 Cameron Grant <gandalf@vilnya.demon.co.uk>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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int mixer_init(device_t dev, kobj_class_t cls, void *devinfo);
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int mixer_uninit(device_t dev);
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int mixer_reinit(device_t dev);
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int mixer_ioctl(struct snddev_info *d, u_long cmd, caddr_t arg);
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int mixer_busy(struct snd_mixer *m, int busy);
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int mixer_isbusy(struct snd_mixer *m);
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int mixer_hwvol_init(device_t dev);
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void mixer_hwvol_mute(device_t dev);
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void mixer_hwvol_step(device_t dev, int left_step, int right_step);
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void mix_setdevs(struct snd_mixer *m, u_int32_t v);
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void mix_setrecdevs(struct snd_mixer *m, u_int32_t v);
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u_int32_t mix_getdevs(struct snd_mixer *m);
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u_int32_t mix_getrecdevs(struct snd_mixer *m);
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void *mix_getdevinfo(struct snd_mixer *m);
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/*
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* this is a kludge to allow hiding of the struct snd_mixer definition
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* 512 should be enough for all architectures
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*/
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#define MIXER_SIZE (512 + sizeof(struct kobj))
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#define MIXER_DECLARE(name) DEFINE_CLASS(name, name ## _methods, MIXER_SIZE)
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