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/*
* Copyright (C) 2018 "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 <string.h>
#include <stdbool.h>
#include "../4a-hal-utilities/4a-hal-utilities-appfw-responses-handler.h"
#include "../4a-hal-utilities/4a-hal-utilities-data.h"
#include "../4a-hal-utilities/4a-hal-utilities-verbs-loader.h"
#include "../4a-hal-manager/4a-hal-manager.h"
#include "4a-hal-controllers-mixer-handler.h"
#include "4a-hal-controllers-cb.h"
/*******************************************************************************
* HAL controllers handle mixer calls functions *
******************************************************************************/
int HalCtlsHandleMixerAttachResponse(AFB_ApiT apiHandle, struct CtlHalMixerDataT *currentHalStreamsData, json_object *mixerResponseJ)
{
int err = (int) MIXER_NO_ERROR;
unsigned int idx;
char *currentStreamName, *currentStreamCardId;
struct HalUtlApiVerb *CtlHalDynApiStreamVerbs;
json_object *currentStreamJ;
if(! apiHandle) {
AFB_ApiError(apiHandle, "%s: Can't get current hal api handle", __func__);
return (int) MIXER_ERROR_API_UNAVAILABLE;
}
switch(json_object_get_type(mixerResponseJ)) {
case json_type_object:
currentHalStreamsData->count = 1;
break;
case json_type_array:
currentHalStreamsData->count = json_object_array_length(mixerResponseJ);
break;
default:
currentHalStreamsData->count = 0;
AFB_ApiWarning(apiHandle, "%s: no streams returned", __func__);
return (int) MIXER_ERROR_NO_STREAMS;
}
currentHalStreamsData->data = (struct CtlHalMixerData *) calloc(currentHalStreamsData->count, sizeof(struct CtlHalMixerData));
CtlHalDynApiStreamVerbs = alloca((currentHalStreamsData->count + 1) * sizeof(struct HalUtlApiVerb));
memset(CtlHalDynApiStreamVerbs, '\0', (currentHalStreamsData->count + 1) * sizeof(struct HalUtlApiVerb));
CtlHalDynApiStreamVerbs[currentHalStreamsData->count].verb = NULL;
for(idx = 0; idx < currentHalStreamsData->count; idx++) {
if(currentHalStreamsData->count > 1)
currentStreamJ = json_object_array_get_idx(mixerResponseJ, (int) idx);
else
currentStreamJ = mixerResponseJ;
if(wrap_json_unpack(currentStreamJ, "{s:s}", "uid", ¤tStreamName)) {
AFB_ApiError(apiHandle, "%s: can't find name in current stream object", __func__);
err += (int) MIXER_ERROR_STREAM_NAME_UNAVAILABLE;
}
else if(wrap_json_unpack(currentStreamJ, "{s:s}", "alsa", ¤tStreamCardId)) {
AFB_ApiError(apiHandle, "%s: can't find card id in current stream object", __func__);
err += (int) MIXER_ERROR_STREAM_CARDID_UNAVAILABLE;
}
else {
currentHalStreamsData->data[idx].name = strdup(currentStreamName);
currentHalStreamsData->data[idx].streamCardId = strdup(currentStreamCardId);
CtlHalDynApiStreamVerbs[idx].verb = currentStreamName;
CtlHalDynApiStreamVerbs[idx].callback = HalCtlsActionOnStream;
CtlHalDynApiStreamVerbs[idx].info = "Peform action on this stream";
}
}
if(HalUtlLoadVerbs(apiHandle, CtlHalDynApiStreamVerbs)) {
AFB_ApiError(apiHandle, "%s: error while creating verbs for streams", __func__);
err += (int) MIXER_ERROR_COULDNT_ADD_STREAMS_AS_VERB;
}
return err;
}
int HalCtlsAttachToMixer(AFB_ApiT apiHandle)
{
unsigned int err;
char *apiToCall, *returnedStatus = NULL, *returnedInfo = NULL;
enum CallError returnedError;
CtlConfigT *ctrlConfig;
struct SpecificHalData *currentCtlHalData, *concurentHalData = NULL;
struct SpecificHalData **firstHalData;
json_object *returnJ, *toReturnJ;
ctrlConfig = (CtlConfigT *) afb_dynapi_get_userdata(apiHandle);
if(! ctrlConfig) {
AFB_ApiError(apiHandle, "%s: Can't get current hal controller config", __func__);
return -1;
}
currentCtlHalData = (struct SpecificHalData *) ctrlConfig->external;
if(! currentCtlHalData) {
AFB_ApiError(apiHandle, "%s: Can't get current hal controller data", __func__);
return -2;
}
// TODO JAI : add a test to see if the hal card id is already used
firstHalData = HalMngGetFirstHalData();
if((concurentHalData = HalUtlSearchReadyHalDataByCarId(firstHalData, currentCtlHalData->sndCardId))) {
AFB_ApiError(apiHandle,
"%s: trying to attach mixer for hal '%s' but the alsa device %i is already in use with mixer by hal '%s'",
__func__,
currentCtlHalData->apiName,
currentCtlHalData->sndCardId,
concurentHalData->apiName);
return -3;
}
apiToCall = currentCtlHalData->ctlHalSpecificData->mixerApiName;
if(! apiToCall) {
AFB_ApiError(apiHandle, "%s: Can't get mixer api", __func__);
return -4;
}
switch(currentCtlHalData->status) {
case HAL_STATUS_UNAVAILABLE:
AFB_ApiError(apiHandle, "%s: Seems that the hal corresponding card was not found by alsacore at startup", __func__);
return -5;
case HAL_STATUS_READY:
AFB_ApiNotice(apiHandle, "%s: Seems that the hal mixer is already initialized", __func__);
return 1;
case HAL_STATUS_AVAILABLE:
break;
}
if(AFB_ServiceSync(apiHandle, apiToCall, MIXER_ATTACH_VERB, json_object_get(currentCtlHalData->ctlHalSpecificData->halMixerJ), &returnJ)) {
returnedError = HalUtlHandleAppFwCallError(apiHandle, apiToCall, MIXER_ATTACH_VERB, returnJ, &returnedStatus, &returnedInfo);
AFB_ApiWarning(apiHandle,
"Error %i during call to verb %s of %s api with status '%s' and info '%s'",
(int) returnedError,
apiToCall,
MIXER_ATTACH_VERB,
returnedStatus ? returnedStatus : "not returned",
returnedInfo ? returnedInfo : "not returned");
return -6;
}
else if(json_object_object_get_ex(returnJ, "response", &toReturnJ)) {
err = HalCtlsHandleMixerAttachResponse(apiHandle, ¤tCtlHalData->ctlHalSpecificData->ctlHalStreamsData, toReturnJ);
if(err != (int) MIXER_NO_ERROR) {
AFB_ApiError(apiHandle,
"%s: Seems that %s call to api %s succeed but this warning was risen by response decoder : %i '%s'",
__func__,
MIXER_ATTACH_VERB,
apiToCall,
err,
json_object_get_string(toReturnJ));
return -7;
}
AFB_ApiNotice(apiHandle,
"%s: Seems that %s call to api %s succeed with no warning raised : '%s'",
__func__,
MIXER_ATTACH_VERB,
apiToCall,
json_object_get_string(toReturnJ));
currentCtlHalData->status = HAL_STATUS_READY;
}
else {
AFB_ApiError(apiHandle,
"%s: Seems that %s call to api %s succeed, but response is not valid : '%s'",
__func__,
MIXER_ATTACH_VERB,
apiToCall,
json_object_get_string(returnJ));
return -8;
}
return 0;
}
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