9 files changed, 784 insertions, 0 deletions

diff --git a/4a-hal-utilities/4a-hal-utilities-alsa-data.c b/4a-hal-utilities/4a-hal-utilities-alsa-data.c
new file mode 100644
index 0000000..ef2967a
--- /dev/null
+++ b/4a-hal-utilities/4a-hal-utilities-alsa-data.c
@@ -0,0 +1,51 @@
+/*
+ * 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 <afb-definitions.h>
+
+#include "4a-hal-utilities-alsa-data.h"
+
+/*******************************************************************************
+ *		Free contents of 'CtlHalAlsaMapT' data structure	       *
+ ******************************************************************************/
+
+uint8_t HalUtlFreeAlsaCtlsMap(struct CtlHalAlsaMapT *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;
+}
\ No newline at end of file
diff --git a/4a-hal-utilities/4a-hal-utilities-alsa-data.h b/4a-hal-utilities/4a-hal-utilities-alsa-data.h
new file mode 100644
index 0000000..5a998ae
--- /dev/null
+++ b/4a-hal-utilities/4a-hal-utilities-alsa-data.h
@@ -0,0 +1,72 @@
+/*
+* 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.
+*/
+
+#ifndef _HAL_UTILITIES_ALSA_DATA_INCLUDE_
+#define _HAL_UTILITIES_ALSA_DATA_INCLUDE_
+
+#include <stdio.h>
+
+#include <json-c/json.h>
+
+#include <alsa/asoundlib.h>
+
+#include <ctl-config.h>
+
+struct CtlHalAlsaDBScale {
+	int min;
+	int max;
+	int step;
+	int mute;
+};
+
+struct CtlHalAlsaCtlProperties {
+	snd_ctl_elem_type_t type;
+	int count;
+	int minval;
+	int maxval;
+	int step;
+	// TBD JAI : use them
+	const char **enums;
+	struct CtlHalAlsaDBScale *dbscale;
+};
+
+struct CtlHalAlsaCtl {
+	char *name;
+	int numid;
+	int value;
+	struct CtlHalAlsaCtlProperties alsaCtlProperties;
+	struct CtlHalAlsaCtlProperties *alsaCtlCreation;
+};
+
+struct CtlHalAlsaMap {
+	const char *uid;
+	char *info;
+	AFB_EventT alsaControlEvent;
+	struct CtlHalAlsaCtl ctl;
+	json_object *actionJ;
+	CtlActionT *action;
+};
+
+struct CtlHalAlsaMapT {
+	struct CtlHalAlsaMap *ctls;
+	unsigned int ctlsCount;
+};
+
+// Free contents of 'CtlHalAlsaMapT' data structure
+uint8_t HalUtlFreeAlsaCtlsMap(struct CtlHalAlsaMapT *alsaCtlsMap);
+
+#endif /* _HAL_UTILITIES_ALSA_DATA_INCLUDE_ */
\ No newline at end of file
diff --git a/4a-hal-utilities/4a-hal-utilities-appfw-responses-handler.c b/4a-hal-utilities/4a-hal-utilities-appfw-responses-handler.c
new file mode 100644
index 0000000..40581ef
--- /dev/null
+++ b/4a-hal-utilities/4a-hal-utilities-appfw-responses-handler.c
@@ -0,0 +1,147 @@
+/*
+ * 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 "4a-hal-utilities-appfw-responses-handler.h"
+
+/*******************************************************************************
+ *		Handle application framework response function		       *
+ ******************************************************************************/
+
+enum CallError HalUtlHandleAppFwCallError(AFB_ApiT apiHandle, char *apiCalled, char *verbCalled, json_object *callReturnJ, char **returnedStatus, char **returnedInfo)
+{
+	json_object *returnedRequestJ, *returnedStatusJ, *returnedInfoJ;
+
+	if(! apiHandle || ! apiCalled || ! verbCalled || ! callReturnJ)
+		return CALL_ERROR_INVALID_ARGS;
+
+	if(! json_object_object_get_ex(callReturnJ, "request", &returnedRequestJ)) {
+		AFB_ApiWarning(apiHandle, "Couldn't get response request object");
+		return CALL_ERROR_REQUEST_UNAVAILABLE;
+	}
+
+	if(! json_object_is_type(returnedRequestJ, json_type_object)) {
+		AFB_ApiWarning(apiHandle, "Response request object is not valid");
+		return CALL_ERROR_REQUEST_NOT_VALID;
+	}
+
+	if(! json_object_object_get_ex(returnedRequestJ, "status", &returnedStatusJ)) {
+		AFB_ApiWarning(apiHandle, "Couldn't get response status object");
+		return CALL_ERROR_REQUEST_STATUS_UNAVAILABLE;
+	}
+
+	if(! json_object_is_type(returnedStatusJ, json_type_string)) {
+		AFB_ApiWarning(apiHandle, "Response status object is not valid");
+		return CALL_ERROR_REQUEST_STATUS_NOT_VALID;
+	}
+
+	*returnedStatus = (char *) json_object_get_string(returnedStatusJ);
+
+	if(! strcmp(*returnedStatus, "unknown-api")) {
+		AFB_ApiWarning(apiHandle, "Api %s not found", apiCalled);
+		return CALL_ERROR_API_UNAVAILABLE;
+	}
+
+	if(! strcmp(*returnedStatus, "unknown-verb")) {
+		AFB_ApiWarning(apiHandle, "Verb %s of api %s not found", verbCalled, apiCalled);
+		return CALL_ERROR_VERB_UNAVAILABLE;
+	}
+
+	if(! json_object_object_get_ex(returnedRequestJ, "info", &returnedInfoJ)) {
+		AFB_ApiWarning(apiHandle, "Couldn't get response info object");
+		return CALL_ERROR_REQUEST_INFO_UNAVAILABLE;
+	}
+
+	if(! json_object_is_type(returnedInfoJ, json_type_string)) {
+		AFB_ApiWarning(apiHandle, "Response info object is not valid");
+		return CALL_ERROR_REQUEST_INFO_NOT_VALID;
+	}
+
+	*returnedInfo = (char *) json_object_get_string(returnedInfoJ);
+
+	AFB_ApiWarning(apiHandle,
+		       "Api %s and verb %s found, but this error was raised : '%s' with this info : '%s'",
+		       apiCalled,
+		       verbCalled,
+		       *returnedStatus,
+		       *returnedInfo);
+
+	return CALL_ERROR_RETURNED;
+}
+
+void HalUtlHandleAppFwCallErrorInRequest(AFB_ReqT request, char *apiCalled, char *verbCalled, json_object *callReturnJ, char *errorStatusToSend)
+{
+	char *returnedStatus = NULL, *returnedInfo = NULL;
+
+	AFB_ApiT apiHandle;
+
+	if(! request || ! apiCalled || ! verbCalled || ! callReturnJ) {
+		AFB_ReqFailF(request, "invalid_args", "Invalid arguments");
+		return;
+	}
+
+	apiHandle = (AFB_ApiT) AFB_ReqGetApi(request);
+	if(! apiHandle) {
+		AFB_ReqFailF(request, "api_handle", "Can't get hal manager api handle");
+		return;
+	}
+
+	switch(HalUtlHandleAppFwCallError(apiHandle, apiCalled, verbCalled, callReturnJ, &returnedStatus, &returnedInfo)) {
+		case CALL_ERROR_REQUEST_UNAVAILABLE:
+		case CALL_ERROR_REQUEST_NOT_VALID:
+		case CALL_ERROR_REQUEST_STATUS_UNAVAILABLE:
+		case CALL_ERROR_REQUEST_STATUS_NOT_VALID:
+		case CALL_ERROR_REQUEST_INFO_UNAVAILABLE:
+		case CALL_ERROR_REQUEST_INFO_NOT_VALID:
+			AFB_ReqFail(request, errorStatusToSend, "Error with response object");
+			return;
+
+		case CALL_ERROR_API_UNAVAILABLE:
+			AFB_ReqFailF(request, errorStatusToSend, "Api %s not found", apiCalled);
+			return;
+
+		case CALL_ERROR_VERB_UNAVAILABLE:
+			AFB_ReqFailF(request, errorStatusToSend, "Verb %s of api %s not found", verbCalled, apiCalled);
+			return;
+
+		case CALL_ERROR_RETURNED:
+			AFB_ReqFailF(request,
+				     errorStatusToSend,
+				     "Api %s and verb %s found, but this error was raised : '%s' with this info : '%s'",
+				     apiCalled,
+				     verbCalled,
+				     returnedStatus ? returnedStatus : "not returned",
+				     returnedInfo ? returnedInfo : "not returned");
+			return;
+
+		case CALL_ERROR_INVALID_ARGS:
+			AFB_ReqFailF(request,
+				     errorStatusToSend,
+				     "Api %s and verb %s found, but the arguments are invalid",
+				     apiCalled,
+				     verbCalled);
+			return;
+
+		default:
+			AFB_ReqFailF(request, errorStatusToSend, "Unknown error happened during call to verb %s of api %s", verbCalled, apiCalled);
+			return;
+	}
+}
\ No newline at end of file
diff --git a/4a-hal-utilities/4a-hal-utilities-appfw-responses-handler.h b/4a-hal-utilities/4a-hal-utilities-appfw-responses-handler.h
new file mode 100644
index 0000000..923ca6b
--- /dev/null
+++ b/4a-hal-utilities/4a-hal-utilities-appfw-responses-handler.h
@@ -0,0 +1,45 @@
+/*
+ * 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.
+ */
+
+#ifndef _HAL_UTILITIES_APPFW_RESP_HANDLER_INCLUDE_
+#define _HAL_UTILITIES_APPFW_RESP_HANDLER_INCLUDE_
+
+#include <stdio.h>
+
+#include <wrap-json.h>
+
+#include <afb-definitions.h>
+
+// Enum for the type of error detected
+enum CallError {
+	CALL_ERROR_INVALID_ARGS=-1,
+	CALL_ERROR_REQUEST_UNAVAILABLE=-2,
+	CALL_ERROR_REQUEST_NOT_VALID=-3,
+	CALL_ERROR_REQUEST_STATUS_UNAVAILABLE=-4,
+	CALL_ERROR_REQUEST_STATUS_NOT_VALID=-5,
+	CALL_ERROR_API_UNAVAILABLE=-6,
+	CALL_ERROR_VERB_UNAVAILABLE=-7,
+	CALL_ERROR_REQUEST_INFO_UNAVAILABLE=-8,
+	CALL_ERROR_REQUEST_INFO_NOT_VALID=-9,
+	CALL_ERROR_RETURNED=-10,
+};
+
+// Handle application framework response function
+extern enum CallError HalUtlHandleAppFwCallError(AFB_ApiT apiHandle, char *apiCalled, char *verbCalled, json_object *callReturnJ, char **returnedStatus, char **returnedInfo);
+void HalUtlHandleAppFwCallErrorInRequest(AFB_ReqT request, char *apiCalled, char *verbCalled, json_object *callReturnJ, char *errorStatusToSend);
+
+#endif /* _HAL_UTILITIES_APPFW_RESP_HANDLER_INCLUDE_ */
\ No newline at end of file
diff --git a/4a-hal-utilities/4a-hal-utilities-data.c b/4a-hal-utilities/4a-hal-utilities-data.c
new file mode 100644
index 0000000..4bb19a8
--- /dev/null
+++ b/4a-hal-utilities/4a-hal-utilities-data.c
@@ -0,0 +1,243 @@
+/*
+ * 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 <wrap-json.h>
+
+#include "4a-hal-utilities-data.h"
+#include "4a-hal-utilities-alsa-data.h"
+
+/*******************************************************************************
+ *		Specfic Hal controller streams data handling functions	       *
+ ******************************************************************************/
+
+uint8_t HalUtlRemoveAllCtlHalStreamsData(struct CtlHalMixerDataT *ctlHalStreamsData)
+{
+	unsigned int cpt;
+
+	if(! ctlHalStreamsData)
+		return -1;
+
+	if(! ctlHalStreamsData->count)
+		return -2;
+
+	for(cpt = 0; cpt < ctlHalStreamsData->count; cpt++) {
+		free(ctlHalStreamsData->data[cpt].verb);
+		free(ctlHalStreamsData->data[cpt].verbToCall);
+		free(ctlHalStreamsData->data[cpt].streamCardId);
+	}
+
+	free(ctlHalStreamsData->data);
+
+	return 0;
+}
+
+/*******************************************************************************
+ *		Specfic Hal data handling functions			       *
+ ******************************************************************************/
+
+struct SpecificHalData *HalUtlAddHalApiToHalList(struct SpecificHalData **firstHalData)
+{
+	struct SpecificHalData *currentApi;
+
+	if(! firstHalData)
+		return NULL;
+
+	currentApi = *firstHalData;
+
+	if(! currentApi) {
+		currentApi = (struct SpecificHalData *) calloc(1, sizeof(struct SpecificHalData));
+		if(! currentApi)
+			return NULL;
+
+		*firstHalData = currentApi;
+	}
+	else {
+		while(currentApi->next)
+			currentApi = currentApi->next;
+
+		currentApi->next = calloc(1, sizeof(struct SpecificHalData));
+		if(! currentApi)
+			return NULL;
+
+		currentApi = currentApi->next;
+	}
+
+	memset(currentApi, 0, sizeof(struct SpecificHalData));
+
+	return currentApi;
+}
+
+int8_t HalUtlRemoveSelectedHalFromList(struct SpecificHalData **firstHalData, struct SpecificHalData *apiToRemove)
+{
+	struct SpecificHalData *currentApi, *matchingApi;
+
+	if(! firstHalData || ! apiToRemove)
+		return -1;
+
+	currentApi = *firstHalData;
+
+	if(currentApi == apiToRemove) {
+		*firstHalData = currentApi->next;
+		matchingApi = currentApi;
+	}
+	else {
+		while(currentApi && currentApi->next != apiToRemove)
+			currentApi = currentApi->next;
+
+		if(currentApi) {
+			matchingApi = currentApi->next;
+			currentApi->next = currentApi->next->next;
+		}
+		else {
+			return -2;
+		}
+	}
+
+	if(! matchingApi->internal) {
+		free(matchingApi->apiName);
+		free(matchingApi->sndCardPath);
+		free(matchingApi->info);
+		free(matchingApi->author);
+		free(matchingApi->version);
+		free(matchingApi->date);
+	}
+	else {
+		HalUtlRemoveAllCtlHalStreamsData(&matchingApi->ctlHalSpecificData->ctlHalStreamsData);
+
+		HalUtlFreeAlsaCtlsMap(matchingApi->ctlHalSpecificData->ctlHalAlsaMapT);
+
+		free(matchingApi->ctlHalSpecificData);
+	}
+
+	free(matchingApi);
+
+	return 0;
+}
+
+int64_t HalUtlRemoveAllHalFromList(struct SpecificHalData **firstHalData)
+{
+	int8_t ret;
+	int64_t CtlHalApiRemoved = 0;
+
+	while(*firstHalData) {
+		ret = HalUtlRemoveSelectedHalFromList(firstHalData, *firstHalData);
+		if(ret)
+			return (int64_t) ret;
+
+		CtlHalApiRemoved++;
+	}
+
+	return CtlHalApiRemoved;
+}
+
+int64_t HalUtlGetNumberOfHalInList(struct SpecificHalData **firstHalData)
+{
+	int64_t numberOfCtlHal = 0;
+	struct SpecificHalData *currentApi;
+
+	if(! firstHalData)
+		return -1;
+
+	currentApi = *firstHalData;
+
+	while(currentApi) {
+		currentApi = currentApi->next;
+		numberOfCtlHal++;
+	}
+
+	return numberOfCtlHal;
+}
+
+struct SpecificHalData *HalUtlSearchHalDataByApiName(struct SpecificHalData **firstHalData, char *apiName)
+{
+	struct SpecificHalData *currentApi;
+
+	if(! firstHalData || ! apiName)
+		return NULL;
+
+	currentApi = *firstHalData;
+
+	while(currentApi) {
+		if(! strcmp(apiName, currentApi->apiName))
+			return currentApi;
+
+		currentApi = currentApi->next;
+	}
+
+	return NULL;
+}
+
+
+struct SpecificHalData *HalUtlSearchReadyHalDataByCarId(struct SpecificHalData **firstHalData, int cardId)
+{
+	struct SpecificHalData *currentApi;
+
+	if(! firstHalData)
+		return NULL;
+
+	currentApi = *firstHalData;
+	while(currentApi) {
+		if(currentApi->status == HAL_STATUS_READY && currentApi->sndCardId == cardId)
+			return currentApi;
+
+		currentApi = currentApi->next;
+	}
+
+	return NULL;
+}
+
+/*******************************************************************************
+ *		Hal Manager data handling functions			       *
+ ******************************************************************************/
+
+uint8_t HalUtlInitializeHalMgrData(AFB_ApiT apiHandle, struct HalMgrData *HalMgrGlobalData, char *apiName, char *info)
+{
+	if(! apiHandle || ! HalMgrGlobalData || ! apiName || ! info)
+		return -1;
+
+	// Allocate and fill apiName and info strings
+	HalMgrGlobalData->apiName = strdup(apiName);
+	if(! HalMgrGlobalData->apiName)
+		return -2;
+
+	HalMgrGlobalData->info = strdup(info);
+	if(! HalMgrGlobalData->apiName)
+		return -3;
+
+	HalMgrGlobalData->apiHandle = apiHandle;
+
+	return 0;
+}
+
+void HalUtlRemoveHalMgrData(struct HalMgrData *HalMgrGlobalData)
+{
+	if(! HalMgrGlobalData)
+		return;
+
+	if(HalMgrGlobalData->first)
+		HalUtlRemoveAllHalFromList(&HalMgrGlobalData->first);
+
+	free(HalMgrGlobalData->apiName);
+	free(HalMgrGlobalData->info);
+
+	free(HalMgrGlobalData);
+}
\ No newline at end of file
diff --git a/4a-hal-utilities/4a-hal-utilities-data.h b/4a-hal-utilities/4a-hal-utilities-data.h
new file mode 100644
index 0000000..031fa9b
--- /dev/null
+++ b/4a-hal-utilities/4a-hal-utilities-data.h
@@ -0,0 +1,108 @@
+/*
+ * 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.
+ */
+
+#ifndef _HAL_UTILITIES_DATA_INCLUDE_
+#define _HAL_UTILITIES_DATA_INCLUDE_
+
+#include <stdio.h>
+
+#include <wrap-json.h>
+
+#include <afb-definitions.h>
+
+#include <ctl-config.h>
+
+#include "4a-hal-utilities-alsa-data.h"
+
+// Enum for sharing hal (controller or external) status
+enum HalStatus {
+	HAL_STATUS_UNAVAILABLE=0,
+	HAL_STATUS_AVAILABLE=1,
+	HAL_STATUS_READY=2
+};
+
+// Structure to store stream data
+struct CtlHalMixerData {
+	char *verb;
+	char *verbToCall;
+	char *streamCardId;
+	AFB_EventT event;
+};
+
+// Structure to store stream data table
+struct CtlHalMixerDataT {
+	struct CtlHalMixerData *data;
+	unsigned int count;
+};
+
+// Structure to store specific controller hal data
+struct CtlHalSpecificData {
+	char *mixerApiName;
+	char *prefix;
+	json_object *halMixerJ;
+
+	struct CtlHalMixerDataT ctlHalStreamsData;
+	struct CtlHalMixerDataT ctlHalPlaybacksData;
+	struct CtlHalMixerDataT ctlHalCapturesData;
+	struct CtlHalAlsaMapT *ctlHalAlsaMapT;
+
+	AFB_ApiT apiHandle;
+	CtlConfigT *ctrlConfig;
+};
+
+// Structure to store specific hal (controller or external) data
+struct SpecificHalData {
+	char *apiName;
+	enum HalStatus status;
+	char *sndCardPath;
+	int sndCardId;
+	char *info;
+	unsigned int internal;
+
+	char *author;
+	char *version;
+	char *date;
+	// Can be beefed up if needed
+
+	struct CtlHalSpecificData *ctlHalSpecificData;		// Can be NULL if external api
+
+	struct SpecificHalData *next;
+};
+
+// Structure to store hal manager data
+struct HalMgrData {
+	char *apiName;
+	char *info;
+
+	AFB_ApiT apiHandle;
+
+	struct SpecificHalData *first;
+};
+
+// Exported verbs for 'struct SpecificHalData' handling
+struct SpecificHalData *HalUtlAddHalApiToHalList(struct SpecificHalData **firstHalData);
+int8_t HalUtlRemoveSelectedHalFromList(struct SpecificHalData **firstHalData, struct SpecificHalData *ApiToRemove);
+int64_t HalUtlRemoveAllHalFromList(struct SpecificHalData **firstHalData);
+int64_t HalUtlGetNumberOfHalInList(struct SpecificHalData **firstHalData);
+struct SpecificHalData *HalUtlSearchHalDataByApiName(struct SpecificHalData **firstHalData, char *apiName);
+struct SpecificHalData *HalUtlSearchReadyHalDataByCarId(struct SpecificHalData **firstHalData, int cardId);
+
+// Exported verbs for 'struct HalMgrData' handling
+uint8_t HalUtlInitializeHalMgrData(AFB_ApiT apiHandle, struct HalMgrData *HalMgrGlobalData, char *apiName, char *info);
+void HalUtlRemoveHalMgrData(struct HalMgrData *HalMgrGlobalData);
+
+#endif /* _HAL_UTILITIES_DATA_INCLUDE_ */
\ No newline at end of file
diff --git a/4a-hal-utilities/4a-hal-utilities-verbs-loader.c b/4a-hal-utilities/4a-hal-utilities-verbs-loader.c
new file mode 100644
index 0000000..f557f4c
--- /dev/null
+++ b/4a-hal-utilities/4a-hal-utilities-verbs-loader.c
@@ -0,0 +1,50 @@
+/*
+ * 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 <afb-definitions.h>
+
+#include "4a-hal-utilities-verbs-loader.h"
+
+/*******************************************************************************
+ *		Dynamic API common functions				       *
+ ******************************************************************************/
+
+int HalUtlLoadVerbs(AFB_ApiT apiHandle, AFB_ApiVerbs *verbs)
+{
+	int idx, errCount = 0;
+
+	if(! apiHandle || ! verbs)
+		return -1;
+
+	for (idx = 0; verbs[idx].verb; idx++) {
+		errCount+= AFB_ApiAddVerb(apiHandle,
+					  verbs[idx].verb,
+					  NULL,
+					  verbs[idx].callback,
+					  (void *) &verbs[idx],
+					  verbs[idx].auth,
+					  0,
+					  0);
+	}
+
+	return errCount;
+}
\ No newline at end of file
diff --git a/4a-hal-utilities/4a-hal-utilities-verbs-loader.h b/4a-hal-utilities/4a-hal-utilities-verbs-loader.h
new file mode 100644
index 0000000..2bfa1cd
--- /dev/null
+++ b/4a-hal-utilities/4a-hal-utilities-verbs-loader.h
@@ -0,0 +1,28 @@
+/*
+ * 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.
+ */
+
+#ifndef _HAL_UTILITIES_VERBS_LOADER_INCLUDE_
+#define _HAL_UTILITIES_VERBS_LOADER_INCLUDE_
+
+#include <stdio.h>
+
+#include <afb-definitions.h>
+
+// Verb that allows to add verb to a dynamic api
+int HalUtlLoadVerbs(AFB_ApiT apiHandle, AFB_ApiVerbs *verbs);
+
+#endif /* _HAL_UTILITIES_VERBS_LOADER_INCLUDE_ */
\ No newline at end of file
diff --git a/4a-hal-utilities/CMakeLists.txt b/4a-hal-utilities/CMakeLists.txt
new file mode 100644
index 0000000..a45cb2c
--- /dev/null
+++ b/4a-hal-utilities/CMakeLists.txt
@@ -0,0 +1,40 @@
+###########################################################################
+# Copyright 2015, 2016, 2017, 2018, 2019 IoT.bzh
+#
+# author: Fulup Ar Foll <fulup@iot.bzh>
+# contrib: 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.
+###########################################################################
+
+# Add target to project dependency list
+PROJECT_TARGET_ADD(4a-hal-utilities)
+
+	# Define project Targets
+	ADD_LIBRARY(${TARGET_NAME} STATIC
+		    4a-hal-utilities-alsa-data.c
+		    4a-hal-utilities-appfw-responses-handler.c
+		    4a-hal-utilities-data.c
+		    4a-hal-utilities-verbs-loader.c)
+
+	# Library dependencies (include updates automatically)
+	TARGET_LINK_LIBRARIES(${TARGET_NAME}
+			      afb-helpers
+			      ctl-utilities
+			      ${link_libraries}
+	)
+
+	# Define target includes for this target client
+	TARGET_INCLUDE_DIRECTORIES(${TARGET_NAME} PUBLIC
+				   ${CMAKE_CURRENT_SOURCE_DIR}
+	)