2cfe870acd
This framework is initial implementation of the simple-audio-card compatible audio driver framework. It provides glue for CPU/codec/aux device. Differential Revision: https://reviews.freebsd.org/D27830
96 lines
2.4 KiB
Objective-C
96 lines
2.4 KiB
Objective-C
#-
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# Copyright (c) 2019 Oleksandr Tymoshenko <gonzo@FreeBSD.org>
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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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CODE {
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#include <sys/param.h>
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#include <sys/bus.h>
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#include <dev/sound/pcm/sound.h>
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}
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INTERFACE audio_dai;
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# set DAI format for communications between CPU/codec nodes
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METHOD int init {
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device_t dev;
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uint32_t format;
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}
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# Initialize DAI and set up interrrupt handler
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METHOD int setup_intr {
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device_t dev;
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driver_intr_t intr_handler;
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void *intr_arg;
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}
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# Setup mixers for codec node
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METHOD int setup_mixer {
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device_t dev;
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device_t ausocdev;
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}
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# setup clock speed
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METHOD int set_sysclk {
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device_t dev;
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uint32_t rate;
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int dai_dir;
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}
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METHOD int trigger {
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device_t dev;
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int go;
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int pcm_dir;
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}
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METHOD struct pcmchan_caps* get_caps {
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device_t dev;
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}
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METHOD uint32_t get_ptr {
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device_t dev;
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int pcm_dir;
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}
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# Set PCM channel format
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METHOD uint32_t set_chanformat {
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device_t dev;
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uint32_t format;
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}
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# Set PCM channel sampling rate
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METHOD uint32_t set_chanspeed {
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device_t dev;
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uint32_t speed;
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}
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# call DAI interrupt handler
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# returns 1 if call to chn_intr required, 0 otherwise
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METHOD int intr {
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device_t dev;
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struct snd_dbuf *play_buf;
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struct snd_dbuf *rec_buf;
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}
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