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# 26 27CODE { 28 #include <sys/param.h> 29 #include <sys/bus.h> 30 #include <dev/sound/pcm/sound.h> 31} 32 33INTERFACE audio_dai; 34 35# set DAI format for communications between CPU/codec nodes 36METHOD int init { 37 device_t dev; 38 uint32_t format; 39} 40 41# Initialize DAI and set up interrrupt handler 42METHOD int setup_intr { 43 device_t dev; 44 driver_intr_t intr_handler; 45 void *intr_arg; 46} 47 48# Setup mixers for codec node 49METHOD int setup_mixer { 50 device_t dev; 51 device_t ausocdev; 52} 53 54# setup clock speed 55METHOD int set_sysclk { 56 device_t dev; 57 uint32_t rate; 58 int dai_dir; 59} 60 61METHOD int trigger { 62 device_t dev; 63 int go; 64 int pcm_dir; 65} 66 67METHOD struct pcmchan_caps* get_caps { 68 device_t dev; 69} 70 71METHOD uint32_t get_ptr { 72 device_t dev; 73 int pcm_dir; 74} 75 76# Set PCM channel format 77METHOD uint32_t set_chanformat { 78 device_t dev; 79 uint32_t format; 80} 81 82# Set PCM channel sampling rate 83METHOD uint32_t set_chanspeed { 84 device_t dev; 85 uint32_t speed; 86} 87 88# call DAI interrupt handler 89# returns 1 if call to chn_intr required, 0 otherwise 90METHOD int intr { 91 device_t dev; 92 struct snd_dbuf *play_buf; 93 struct snd_dbuf *rec_buf; 94} 95