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.
125 lines
2.5 KiB
Objective-C
125 lines
2.5 KiB
Objective-C
# KOBJ
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#
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# Copyright (c) 2000 Cameron Grant <cg@freebsd.org>
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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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#include <dev/sound/pcm/sound.h>
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INTERFACE channel;
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CODE {
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static int
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channel_nosetdir(kobj_t obj, void *data, int dir)
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{
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return 0;
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}
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static int
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channel_noreset(kobj_t obj, void *data)
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{
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return 0;
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}
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static int
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channel_noresetdone(kobj_t obj, void *data)
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{
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return 0;
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}
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static int
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channel_nofree(kobj_t obj, void *data)
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{
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return 1;
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}
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};
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METHOD void* init {
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kobj_t obj;
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void *devinfo;
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struct snd_dbuf *b;
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struct pcm_channel *c;
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int dir;
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};
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METHOD int free {
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kobj_t obj;
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void *data;
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} DEFAULT channel_nofree;
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METHOD int reset {
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kobj_t obj;
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void *data;
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} DEFAULT channel_noreset;
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METHOD int resetdone {
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kobj_t obj;
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void *data;
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} DEFAULT channel_noresetdone;
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METHOD int setdir {
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kobj_t obj;
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void *data;
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int dir;
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} DEFAULT channel_nosetdir;
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METHOD u_int32_t setformat {
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kobj_t obj;
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void *data;
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u_int32_t format;
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};
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METHOD u_int32_t setspeed {
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kobj_t obj;
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void *data;
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u_int32_t speed;
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};
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METHOD u_int32_t setblocksize {
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kobj_t obj;
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void *data;
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u_int32_t blocksize;
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};
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METHOD int trigger {
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kobj_t obj;
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void *data;
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int go;
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};
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METHOD u_int32_t getptr {
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kobj_t obj;
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void *data;
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};
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METHOD struct pcmchan_caps* getcaps {
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kobj_t obj;
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void *data;
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};
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