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 28CODE { 29 #include <sys/param.h> 30 #include <sys/bus.h> 31 #include <dev/sound/pcm/sound.h> 32} 33 34INTERFACE audio_dai; 35 36# set DAI format for communications between CPU/codec nodes 37METHOD int init { 38 device_t dev; 39 uint32_t format; 40} 41 42# Initialize DAI and set up interrrupt handler 43METHOD 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 50METHOD int setup_mixer { 51 device_t dev; 52 device_t ausocdev; 53} 54 55# setup clock speed 56METHOD int set_sysclk { 57 device_t dev; 58 uint32_t rate; 59 int dai_dir; 60} 61 62METHOD int trigger { 63 device_t dev; 64 int go; 65 int pcm_dir; 66} 67 68METHOD struct pcmchan_caps* get_caps { 69 device_t dev; 70} 71 72METHOD uint32_t get_ptr { 73 device_t dev; 74 int pcm_dir; 75} 76 77# Set PCM channel format 78METHOD uint32_t set_chanformat { 79 device_t dev; 80 uint32_t format; 81} 82 83# Set PCM channel sampling rate 84METHOD 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 91METHOD int intr { 92 device_t dev; 93 struct snd_dbuf *play_buf; 94 struct snd_dbuf *rec_buf; 95} 96