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/*
* Copyright (C) 2016 "IoT.bzh"
* Author Fulup Ar Foll <fulup@iot.bzh>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define _GNU_SOURCE
#include "hal-interface.h"
#include "audio-interface.h"
// Init is call after all binding are loaded
STATIC int IntelHalInit (void) {
DEBUG ("IntelHalBinding Initialised");
return 0; // 0=OK
}
STATIC void MasterOnOff (alsaHalCtlMapT *control, void* handle) {
static int powerStatus=0;
if (! powerStatus) {
powerStatus = 1;
DEBUG ("Power Set to On");
} else {
powerStatus = 0;
DEBUG ("Power Set to Off");
}
}
/******************************************************************************************
* alsaCtlsMap link hight level sound control with low level Alsa numid ctls.
*
* To find out which control your sound card uses
* aplay -l
* amixer -D hw:xx controls
* amixer -D hw:xx contents
* amixer -D "hw:3" cget numid=xx
*
* When automatic mapping to Alsa numid is not enough a custom callback might be used
* .cb={.handle=xxxx, .callback=(json_object)MyCtlFunction(struct afb_service service, int controle, int value, const struct alsaHalCtlMapS *map)};
********************************************************************************************/
STATIC alsaHalMapT alsaHalMap[]= {
{ .alsa={.control=Master_Playback_Volume,.numid=16, .name="Master-Vol" , .values=1,.minval=0,.maxval= 87 ,.step=0}, .info= "Master Playback Volume" },
{ .alsa={.control=PCM_Playback_Volume ,.numid=27, .name="Play-Vol" , .values=2,.minval=0,.maxval= 255,.step=0}, .info= "PCM Playback Volume" },
{ .alsa={.control=PCM_Playback_Switch ,.numid=17, .name="Play-Switch" , .values=1,.minval=0,.maxval= 1 ,.step=0}, .info= "Master Playback Switch" },
{ .alsa={.control=Capture_Volume ,.numid=12, .name="Capt-vol" , .values=2,.minval=0,.maxval= 31 ,.step=0}, .info= "Capture Volume" },
{ .alsa={.control=Master_OnOff_Switch ,.numid=99, .name="Power-Switch"}, .cb={.callback=MasterOnOff, .handle=NULL}, .info= "OnOff Global Switch"},
{ .alsa={.numid=0}, .cb={.callback=NULL, .handle=NULL}} /* marker for end of the array */
} ;
/***********************************************************************************
* AlsaHalSndT provides
* - cardname used to map a given card to its HAL
* - ctls previously defined AlsaHalMapT control maps
* - info free text
*
* WARNING: name should fit with 'aplay -l' as it used to map from devid to HAL
* you may also retreive shortname when AudioBinder is running from a browser
* http://localhost:1234/api/alsacore/getcardid?devid=hw:xxx
*
***********************************************************************************/
// API prefix should be unique for each snd card
PUBLIC const char sndCardApiPrefix[] = "intel-hda";
// HAL sound card controls mapping
PUBLIC alsaHalSndCardT alsaHalSndCard = {
.name = "HDA Intel PCH",
.info = "Hardware Abstraction Layer for IntelHDA sound card",
.ctls = alsaHalMap,
.initCB=IntelHalInit, // if NULL no initcallback
};
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