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/*
* Copyright (C) 2019 "IoT.bzh"
* Author Jonathan Aillet <jonathan.aillet@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 <stdio.h>
#include <wrap-json.h>
#include <afb/afb-binding.h>
#include "4a-hal-utilities-alsa-data.h"
/*******************************************************************************
* Internal Hal - ALSA controls data handling functions *
******************************************************************************/
json_object *HalUtGetJsonArrayForSpecificControl(afb_api_t apiHandle, struct InternalHalAlsaMap *currentAlsaMapData)
{
int wrapRet;
json_object *currentAlsaMapDataJ;
if(! apiHandle) {
AFB_API_ERROR(apiHandle, "Can't get current internal hal api handle");
return NULL;
}
if(! currentAlsaMapData) {
AFB_API_ERROR(apiHandle, "ALSA control data to use to generate json object are empty");
return NULL;
}
wrapRet = wrap_json_pack(¤tAlsaMapDataJ,
"{s:s s:s}",
"name", currentAlsaMapData->uid,
"info", currentAlsaMapData->info ? currentAlsaMapData->info : "none");
if(wrapRet) {
AFB_API_ERROR(apiHandle, "Didn't succeed to allocate current streams json object");
return NULL;
}
return currentAlsaMapDataJ;
}
json_object *HalUtGetJsonArrayForAllControls(afb_api_t apiHandle, struct InternalHalAlsaMapT *currentAlsaMapDataT)
{
unsigned int idx;
json_object *alsaMapDataArrayJ, *currentAlsaMapDataJ;
if(! apiHandle) {
AFB_API_ERROR(apiHandle, "Can't get current internal hal api handle");
return NULL;
}
if(! currentAlsaMapDataT) {
AFB_API_ERROR(apiHandle, "Can't get Alsa map data table to handle");
return NULL;
}
alsaMapDataArrayJ = json_object_new_array();
if(! alsaMapDataArrayJ) {
AFB_API_ERROR(apiHandle, "Didn't succeed to allocate ALSA controls data json array");
return NULL;
}
for(idx = 0; idx < currentAlsaMapDataT->ctlsCount; idx++) {
currentAlsaMapDataJ = HalUtGetJsonArrayForSpecificControl(apiHandle, ¤tAlsaMapDataT->ctls[idx]);
if(! currentAlsaMapDataJ) {
AFB_API_ERROR(apiHandle, "Didn't succeed to generate current ALSA control data json object");
json_object_put(alsaMapDataArrayJ);
return NULL;
}
json_object_array_add(alsaMapDataArrayJ, currentAlsaMapDataJ);
}
return alsaMapDataArrayJ;
}
int HalUtlFreeAlsaCtlsMap(struct InternalHalAlsaMapT *alsaCtlsMap)
{
int idx;
if(! alsaCtlsMap)
return -1;
if(alsaCtlsMap->ctlsCount > 0 && ! alsaCtlsMap->ctls)
return -2;
for(idx = 0; idx < alsaCtlsMap->ctlsCount; idx++) {
free(alsaCtlsMap->ctls[idx].action);
free(alsaCtlsMap->ctls[idx].ctl.alsaCtlProperties.enums);
free(alsaCtlsMap->ctls[idx].ctl.alsaCtlProperties.dbscale);
}
free(alsaCtlsMap->ctls);
free(alsaCtlsMap);
return 0;
}
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