audio_dai_if.m

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    1 #-
    2 # Copyright (c) 2019 Oleksandr Tymoshenko <gonzo@FreeBSD.org>
    3 #
    4 # Redistribution and use in source and binary forms, with or without
    5 # modification, are permitted provided that the following conditions
    6 # are met:
    7 # 1. Redistributions of source code must retain the above copyright
    8 #    notice, this list of conditions and the following disclaimer.
    9 # 2. Redistributions in binary form must reproduce the above copyright
   10 #    notice, this list of conditions and the following disclaimer in the
   11 #    documentation and/or other materials provided with the distribution.
   12 #
   13 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   14 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   15 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   16 # ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   17 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   18 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   19 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   20 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   21 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   22 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   23 # SUCH DAMAGE.
   24 #
   25 # $FreeBSD$
   26 #
   27 
   28 CODE {
   29         #include <sys/param.h>
   30         #include <sys/bus.h>
   31         #include <dev/sound/pcm/sound.h>
   32 }
   33 
   34 INTERFACE audio_dai;
   35 
   36 # set DAI format for communications between CPU/codec nodes
   37 METHOD int init {
   38         device_t        dev;
   39         uint32_t        format;
   40 }
   41 
   42 # Initialize DAI and set up interrrupt handler
   43 METHOD int setup_intr {
   44         device_t        dev;
   45         driver_intr_t   intr_handler;
   46         void            *intr_arg;
   47 }
   48 
   49 # Setup mixers for codec node
   50 METHOD int setup_mixer {
   51         device_t        dev;
   52         device_t        ausocdev;
   53 }
   54 
   55 # setup clock speed
   56 METHOD int set_sysclk {
   57         device_t        dev;
   58         uint32_t        rate;
   59         int             dai_dir;
   60 }
   61 
   62 METHOD int trigger {
   63         device_t        dev;
   64         int             go;
   65         int             pcm_dir;
   66 }
   67 
   68 METHOD struct pcmchan_caps* get_caps {
   69         device_t        dev;
   70 }
   71 
   72 METHOD uint32_t get_ptr {
   73         device_t        dev;
   74         int             pcm_dir;
   75 }
   76 
   77 # Set PCM channel format
   78 METHOD uint32_t set_chanformat {
   79         device_t        dev;
   80         uint32_t        format;
   81 }
   82 
   83 # Set PCM channel sampling rate
   84 METHOD uint32_t set_chanspeed {
   85         device_t        dev;
   86         uint32_t        speed;
   87 }
   88 
   89 # call DAI interrupt handler
   90 # returns 1 if call to chn_intr required, 0 otherwise
   91 METHOD int intr {
   92         device_t        dev;
   93         struct snd_dbuf *play_buf;
   94         struct snd_dbuf *rec_buf;
   95 }

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FreeBSD/Linux Kernel Cross Reference sys/dev/sound/fdt/audio_dai_if.m

FreeBSD/Linux Kernel Cross Reference
sys/dev/sound/fdt/audio_dai_if.m