merge dev branch with master

4 files changed, 1373 insertions, 0 deletions

diff --git a/ahl-policy/CMakeLists.txt b/ahl-policy/CMakeLists.txt
new file mode 100644
index 0000000..aa3ab9c
--- /dev/null
+++ b/ahl-policy/CMakeLists.txt
@@ -0,0 +1,40 @@
+###########################################################################
+# Copyright 2015, 2016, 2017 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.
+###########################################################################
+
+
+# Add target to project dependency list
+PROJECT_TARGET_ADD(ahl-policy)
+
+    # Define project Targets
+    ADD_LIBRARY(${TARGET_NAME} STATIC ahl-policy.c)
+
+    # Define target includes
+    TARGET_INCLUDE_DIRECTORIES(${TARGET_NAME}
+        PUBLIC ${GLIB_PKG_INCLUDE_DIRS}
+    )
+
+    # Library dependencies (include updates automatically)
+    TARGET_LINK_LIBRARIES(${TARGET_NAME}
+        ahl-utilities
+        afb-utilities
+    )
+
+    # Define target includes for this target client
+    TARGET_INCLUDE_DIRECTORIES(${TARGET_NAME}
+        PUBLIC  ${CMAKE_CURRENT_SOURCE_DIR}
+    )
diff --git a/ahl-policy/ahl-interface.h b/ahl-policy/ahl-interface.h
new file mode 100644
index 0000000..fc0ac68
--- /dev/null
+++ b/ahl-policy/ahl-interface.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2017 "Audiokinetic Inc"
+ *
+ * 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 AHL_INTERFACE_INCLUDE
+#define AHL_INTERFACE_INCLUDE
+
+///// API /////
+
+// Endpoint types
+#define AHL_ENDPOINTTYPE_SOURCE "source" // source devices
+#define AHL_ENDPOINTTYPE_SINK "sink" // sink devices
+
+// Stream state
+#define AHL_STREAM_STATE_IDLE  "idle"       // Stream is inactive
+#define AHL_STREAM_STATE_RUNNING "running"  // Stream is active and running    
+#define AHL_STREAM_STATE_PAUSED "paused"    // Stream is active but paused
+
+// Stream mute state
+#define AHL_STREAM_UNMUTED "off"            // Stream is not muted
+#define AHL_STREAM_MUTED "on"               // Stream is muted
+
+// Property/Volume/Action events
+#define AHL_ENDPOINT_PROPERTY_EVENT "ahl_endpoint_property_event"
+#define AHL_ENDPOINT_VOLUME_EVENT "ahl_endpoint_volume_event"
+#define AHL_POST_ACTION_EVENT "ahl_post_action"
+#define AHL_STREAM_STATE_EVENT "ahl_stream_state_event"
+
+// Stream state event types
+#define AHL_STREAM_EVENT_START "start"    // Stream is inactive
+#define AHL_STREAM_EVENT_STOP "stop"      // Stream is running    
+#define AHL_STREAM_EVENT_PAUSE "pause"    // Audio stream paused
+#define AHL_STREAM_EVENT_RESUME "resume"  // Audio stream resumed
+#define AHL_STREAM_EVENT_MUTE "mute"      // Audio stream muted
+#define AHL_STREAM_EVENT_UNMUTE "unmute"  // Audio stream unmuted
+
+///// Interpret returned or configuration information /////
+
+// Known audio domain string definitions (for configuration file format and device URI interpretation)
+#define AHL_DOMAIN_ALSA "alsa"
+#define AHL_DOMAIN_PULSE "pulse"
+#define AHL_DOMAIN_GSTREAMER "gstreamer"
+#define AHL_DOMAIN_EXTERNAL "external"
+
+// ALSA Device URI type
+#define AHL_DEVICEURITYPE_ALSA_HW "hw"             // Alsa hardware device URI
+#define AHL_DEVICEURITYPE_ALSA_DMIX "dmix"         // Alsa Dmix device URI (only for playback devices)
+#define AHL_DEVICEURITYPE_ALSA_DSNOOP "dsnoop"     // Alsa DSnoop device URI (only for capture devices)
+#define AHL_DEVICEURITYPE_ALSA_SOFTVOL "softvol"   // Alsa softvol device URI
+#define AHL_DEVICEURITYPE_ALSA_PLUG "plug"         // Alsa plug device URI
+#define AHL_DEVICEURITYPE_ALSA_OTHER "other"       // Alsa domain URI device of unspecified type
+#define AHL_DEVICEURITYPE_NOT_ALSA "nonalsa"
+
+// Define default behavior of audio role when interrupting lower priority sources (in configuration)
+#define AHL_INTERRUPTBEHAVIOR_CONTINUE "continue" // Continue to play when interrupted (e.g. media may be ducked)
+#define AHL_INTERRUPTBEHAVIOR_CANCEL "cancel"     // Abort playback when interrupted (e.g. non-important HMI feedback that does not make sense later)
+#define AHL_INTERRUPTBEHAVIOR_PAUSE "pause"       // Pause source when interrupted, to be resumed afterwards (e.g. non-temporal guidance)
+
+///// Naming convention /////
+
+// Standardized name for common audio roles (not enforced in any way, just helps compatibility)
+#define AHL_ROLE_WARNING "warning"             // Safety-relevant or critical alerts/alarms
+#define AHL_ROLE_GUIDANCE "guidance"           // Important user information where user action is expected (e.g. navigation instruction)
+#define AHL_ROLE_NOTIFICATION "notification"   // HMI or else notifications (e.g. touchscreen events, speech recognition on/off,...)
+#define AHL_ROLE_COMMUNICATION "communication" // Voice communications (e.g. handsfree, speech recognition)
+#define AHL_ROLE_ENTERTAINMENT "entertainment"  // Multimedia content (e.g. tuner, media player, etc.)
+#define AHL_ROLE_SYSTEM "system"               // System level content or development
+#define AHL_ROLE_STARTUP "startup"             // Early (startup) sound
+#define AHL_ROLE_SHUTDOWN "shutdown"           // Late (shutdown) sound
+#define AHL_ROLE_NONE "none"                   // Non-assigned / legacy applications
+
+// Standardized list of properties (not enforced in any way, just helps compatibility)
+#define AHL_PROPERTY_BALANCE "balance"
+#define AHL_PROPERTY_FADE "fade"
+#define AHL_PROPERTY_EQ_LOW "eq_bass" 
+#define AHL_PROPERTY_EQ_MID "eq_mid" 
+#define AHL_PROPERTY_EQ_HIGH "eq_treble"
+
+// Standardized list of events (not enforced in any way, just helps compatibility)
+#define AHL_EVENTS_PLAYSOUND "play_sound"
+#define AHL_EVENTS_ECHOCANCEL_ENABLE "echocancel_enable"
+#define AHL_EVENTS_ECHOCANCEL_DISABLE "echocancel_disable"
+
+#endif // AHL_INTERFACE_INCLUDE
diff --git a/ahl-policy/ahl-policy.c b/ahl-policy/ahl-policy.c
new file mode 100644
index 0000000..4a34ed8
--- /dev/null
+++ b/ahl-policy/ahl-policy.c
@@ -0,0 +1,1188 @@
+/*
+ * Copyright (C) 2017 "Audiokinetic Inc"
+ *
+ * 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.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdbool.h>
+#define AFB_BINDING_VERSION 2
+#include <afb/afb-binding.h>
+#include <glib.h>
+#include "wrap-json.h"
+#include "ahl-policy-utils.h"
+#include "ahl-interface.h"
+#include "ahl-policy.h"
+
+#ifndef AHL_DISCONNECT_POLICY
+
+#define AK_POLICY_DEMO  //For Audiokinetic demo only
+
+typedef struct StreamPolicyInfo {
+    streamID_t          streamID;
+    int                 RolePriority;
+    char *              pAudioRole;    
+    InterruptBehaviorT  interruptBehavior;   
+    int                 iDuckVolume;     //duck Volume
+} StreamPolicyInfoT;
+ 
+typedef struct EndPointPolicyInfo {
+    endpointID_t    endpointID;
+    EndpointTypeT   type;    
+    DeviceURITypeT  deviceType;
+    char *          pDeviceName;
+    char *          pHalApiName; 
+    int             iVolume;     //Current Volume            
+    GArray *        streamInfo; //List of playing or duck stream at a given endpoint
+} EndPointPolicyInfoT;
+
+typedef enum SystemState {
+    SYSTEM_STARTUP = 0,     // Startup
+    SYSTEM_SHUTDOWN,        // ShutDown
+    SYSTEM_NORMAL,          // Normal
+    SYSTEM_LOW_POWER,       // Low Power, save mode
+    SYSTEM_MAXVALUE         // Enum count, keep at the end
+} SystemStateT;
+
+typedef struct HalInfo {
+    char *pDevID;
+    char *pAPIName;
+    char *pDisplayName;
+} HalInfoT;
+
+typedef struct StreamConfig {
+    int iNbMaxStream;
+    int iVolumeInit;
+    int iVolumeDuckValue;
+} StreamConfigT;
+
+// Global Policy Local context
+typedef struct PolicyLocalCtx {
+    GArray *     pSourceEndpoints; // List of Source Endpoint with playing stream or interrupted stream
+    GArray *     pSinkEndpoints;   // List of Sink Endpoint with playing stream or interrupted stream
+    GPtrArray *  pHALList;
+    SystemStateT systemState;
+} PolicyLocalCtxT;
+
+//  Policy context
+PolicyLocalCtxT g_PolicyCtx;
+
+//  Helper Functions
+static int getStreamConfig(char *pAudioRole, StreamConfigT *pStreamConfig)
+{
+    if(pAudioRole == NULL || pStreamConfig==NULL)
+    {
+        return POLICY_FAIL;
+    }
+
+    if ( strcasecmp(pAudioRole,AHL_ROLE_WARNING) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 4;
+        pStreamConfig->iVolumeInit = 80; 
+        pStreamConfig->iVolumeDuckValue = 0;
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_GUIDANCE) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 10;
+        pStreamConfig->iVolumeInit = 70; 
+        pStreamConfig->iVolumeDuckValue = 30;
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_NOTIFICATION) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 4;
+        pStreamConfig->iVolumeInit = 80; 
+        pStreamConfig->iVolumeDuckValue = 10;
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_COMMUNICATION) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 10;
+        pStreamConfig->iVolumeInit = 70; 
+        pStreamConfig->iVolumeDuckValue = 10;        
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_ENTERTAINMENT) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = MAX_ACTIVE_STREAM_POLICY;
+        pStreamConfig->iVolumeInit = 60; 
+        pStreamConfig->iVolumeDuckValue = 40;        
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_SYSTEM) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 2;
+        pStreamConfig->iVolumeInit = 100; 
+        pStreamConfig->iVolumeDuckValue = 0;        
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_STARTUP) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 1;
+        pStreamConfig->iVolumeInit = 90; 
+        pStreamConfig->iVolumeDuckValue = 0;        
+    }
+    else if ( strcasecmp(pAudioRole,AHL_ROLE_SHUTDOWN) == 0 )
+    {
+        pStreamConfig->iNbMaxStream = 1;
+        pStreamConfig->iVolumeInit = 90; 
+        pStreamConfig->iVolumeDuckValue = 0;        
+    }
+    return POLICY_SUCCESS;
+}
+
+static int PolicySetVolume(int iEndpointID, int iEndpointType, char *pHalApiName, char *AudioRole, DeviceURITypeT deviceType, int iVolume, bool bMute)
+{
+    if(pHalApiName == NULL || (strcasecmp(pHalApiName, AHL_POLICY_UNDEFINED_HALNAME) == 0))
+    {
+        AFB_WARNING("SetVolume cannot be accomplished without proper HAL association");    
+        return POLICY_FAIL;
+    }
+
+    if(AudioRole == NULL)
+    {
+        AFB_ERROR("Invalid AudioRole : %s",AudioRole);    
+        return POLICY_FAIL;
+    }
+
+    // Using audio role available from endpoint to target the right HAL control (build string based on convention)
+    GString * gsHALControlName = NULL;    
+    switch(deviceType)
+    {
+        case DEVICEURITYPE_ALSA_HW:
+            gsHALControlName  = g_string_new("Master_Playback_Volume");    
+            break;        
+        case DEVICEURITYPE_ALSA_DMIX:
+        case DEVICEURITYPE_ALSA_DSNOOP:
+        case DEVICEURITYPE_ALSA_PLUG:
+        case DEVICEURITYPE_ALSA_SOFTVOL:            
+            gsHALControlName  = g_string_new(AudioRole);
+            if(bMute == false)
+            {
+                AFB_DEBUG("Using ramp");
+                g_string_append(gsHALControlName,"_Ramp");   
+            }
+            else
+            {
+                AFB_DEBUG("Not using ramp");
+                g_string_append(gsHALControlName,"_Vol"); // no ramping     
+            }                        
+            break;
+        default:
+            // Not supported yet
+            AFB_WARNING("Device Type %i is not support and can't set volume on HalName %s",deviceType, pHalApiName);
+            return POLICY_FAIL;
+            break;
+    }
+
+    // Set endpoint volume using HAL services (leveraging ramps etc.)
+    json_object *j_response = NULL, *j_query = NULL;
+ 
+    // Package query
+    int err = wrap_json_pack(&j_query,"{s:s,s:i}","label",gsHALControlName->str, "val",iVolume);
+    if (err) 
+    {
+        AFB_ERROR("Invalid query for HAL ctlset: %s with errorcode: %i",json_object_to_json_string(j_query), err);    
+        return POLICY_FAIL;
+    }
+
+    // TODO: implement Volume limitation based on policy
+
+    // Set the volume using the HAL
+     err = afb_service_call_sync(pHalApiName, "ctlset", j_query, &j_response);
+     if (err) 
+     {
+         AFB_ERROR("Could not ctlset on HAL: %s with errorcode: %i",pHalApiName, err);    
+         return POLICY_FAIL;
+     }
+     AFB_DEBUG("HAL ctlset response=%s", json_object_to_json_string(j_response));
+
+     if (bMute == false) {
+        // Package event data
+        json_object * eventDataJ = NULL;
+        err = wrap_json_pack(&eventDataJ,"{s:s,s:i,s:i,s:i,s:s}","event_name", AHL_ENDPOINT_VOLUME_EVENT,"endpoint_id", iEndpointID, "endpoint_type", iEndpointType,"value",iVolume, "audio_role", AudioRole);
+        if (err) 
+        {
+            AFB_ERROR("Invalid event data for volume event %s with errorcode: %i",json_object_to_json_string(eventDataJ), err);    
+            return POLICY_FAIL;
+        }
+
+        audiohlapi_raise_event(eventDataJ);
+     }
+
+    return POLICY_SUCCESS; 
+}
+
+static int PolicyGetVolume(int iEndpointID, int iEndpointType, char *pHalApiName, char *AudioRole, DeviceURITypeT deviceType, int *pVolume)
+{
+    GString * gsHALControlName = NULL;
+
+    // Using audio role available from endpoint to target the right HAL control (build string based on convention)        
+    switch(deviceType)
+    {
+        case DEVICEURITYPE_ALSA_HW:
+            gsHALControlName  = g_string_new("Master_Playback_Volume");    
+            break;        
+        case DEVICEURITYPE_ALSA_DMIX:
+        case DEVICEURITYPE_ALSA_DSNOOP:
+        case DEVICEURITYPE_ALSA_PLUG:
+        case DEVICEURITYPE_ALSA_SOFTVOL:            
+            gsHALControlName  = g_string_new(AudioRole);
+            g_string_append(gsHALControlName,"_Vol"); // Return target value  
+            break;
+        default:
+            // Set volume to zero for display purpose only.
+            // Not supported yet
+            *pVolume = 0;
+            AFB_WARNING("Can't get volume on HAL: %s for device type: %d",pHalApiName,deviceType);
+            return POLICY_FAIL;
+    }
+
+    // Set endpoint volume using HAL services (leveraging ramps etc.)
+    json_object *j_response = NULL, *j_query = NULL;
+ 
+    // Package query
+    int err = wrap_json_pack(&j_query,"{s:s}","label",gsHALControlName->str);
+    if (err) 
+    {
+        AFB_WARNING("Invalid query for HAL ctlset: %s, errorcode: %i",json_object_to_json_string(j_query),err);    
+        return POLICY_FAIL;
+    }
+
+    // Get the volume using the HAL
+     err = afb_service_call_sync(pHalApiName, "ctlget", j_query, &j_response);
+    if (err) 
+    {
+         AFB_WARNING("Could not ctlset on HAL: %s, errorcode: %i",pHalApiName, err);    
+         return POLICY_FAIL;
+     }
+    AFB_DEBUG("HAL ctlget response=%s", json_object_to_json_string(j_response));
+ 
+    // Parse response
+    json_object * jRespObj = NULL;
+    json_object_object_get_ex(j_response, "response", &jRespObj);
+    json_object * jVal = NULL;
+    int val1 = 0, val2 = 0; // Why 2 values?    
+
+    json_object_object_get_ex(jRespObj, "val", &jVal);
+    int nbElement = json_object_array_length(jVal);
+    if(nbElement == 2)
+    {          
+        err = wrap_json_unpack(jVal, "[ii]", &val1, &val2);
+        if (err) {
+            AFB_ERROR("Volume retrieve failed Could not retrieve volume value -> %s", json_object_get_string(jVal));
+            return POLICY_FAIL;
+        }  
+    }
+    else
+    {    
+        err = wrap_json_unpack(jVal, "[i]", &val1);
+        if (err) {
+            AFB_ERROR("Volume retrieve failed Could not retrieve volume value -> %s", json_object_get_string(jVal));
+            return POLICY_FAIL;
+        }
+    }
+        
+   *pVolume = val1;
+
+     // Package event data
+    json_object * eventDataJ = NULL;
+    err = wrap_json_pack(&eventDataJ,"{s:s,s:i,s:i,s:i,s:s}","event_name", AHL_ENDPOINT_VOLUME_EVENT,"endpoint_id", iEndpointID, "endpoint_type", iEndpointType,"value",*pVolume, "audio_role", AudioRole);
+    if (err) 
+    {
+        AFB_ERROR("Invalid event data for volume event %s with errorcode: %i",json_object_to_json_string(eventDataJ), err);    
+        return POLICY_FAIL;
+    }
+
+    audiohlapi_raise_event(eventDataJ);
+
+    return POLICY_SUCCESS; 
+}
+
+static void PolicyPostStateEvent(int iStreamID, StreamEventT eventState)
+{
+    json_object * eventDataJ = NULL;
+    int err = wrap_json_pack(&eventDataJ,"{s:s,s:i,s:i}","event_name", AHL_STREAM_STATE_EVENT,"stream_id",iStreamID, "state_event",eventState);
+    if (err) 
+    {
+        AFB_ERROR("Invalid event data for stream state event: %s",json_object_to_json_string(eventDataJ));
+    }
+    else                    
+    {
+        audiohlapi_raise_event(eventDataJ);
+    }         
+}
+
+static EndPointPolicyInfoT *PolicySearchEndPoint(EndpointTypeT type, char *pDeviceName)
+{   
+    GArray *pcurEndpointArray = NULL;
+
+    if(type==ENDPOINTTYPE_SINK)
+    {
+        pcurEndpointArray = g_PolicyCtx.pSinkEndpoints;
+    }
+    else
+    {
+        pcurEndpointArray = g_PolicyCtx.pSourceEndpoints;
+    }
+
+    for(int i=0; i<pcurEndpointArray->len; i++)
+    {
+        EndPointPolicyInfoT * pCurEndpoint = &g_array_index(pcurEndpointArray,EndPointPolicyInfoT,i);    
+
+        if(strcasecmp(pCurEndpoint->pDeviceName,pDeviceName)==0)
+        {
+            return pCurEndpoint;
+        }
+    }
+
+    return NULL;
+}
+
+static int PolicyAddEndPoint(StreamInterfaceInfoT *pStreamInfo)
+{
+    EndPointPolicyInfoT *pPolicyEndPoint = PolicySearchEndPoint(pStreamInfo->endpoint.type, pStreamInfo->endpoint.gsDeviceName);
+    if(pPolicyEndPoint == NULL)
+    {
+        //create EndPoint and add playing stream
+        EndPointPolicyInfoT newEndPointPolicyInfo;        
+        newEndPointPolicyInfo.endpointID  = pStreamInfo->endpoint.endpointID;
+        newEndPointPolicyInfo.type        = pStreamInfo->endpoint.type;
+        newEndPointPolicyInfo.deviceType  = pStreamInfo->endpoint.deviceURIType;
+        newEndPointPolicyInfo.pDeviceName = strdup(pStreamInfo->endpoint.gsDeviceName);
+        newEndPointPolicyInfo.pHalApiName = strdup(pStreamInfo->endpoint.gsHALAPIName);
+        newEndPointPolicyInfo.iVolume = pStreamInfo->endpoint.iVolume;
+        newEndPointPolicyInfo.streamInfo = g_array_new(FALSE, TRUE, sizeof(StreamPolicyInfoT));
+
+        if(pStreamInfo->endpoint.type == ENDPOINTTYPE_SINK)
+        {
+            g_array_append_val(g_PolicyCtx.pSinkEndpoints, newEndPointPolicyInfo);
+        }
+        else
+        {
+            g_array_append_val(g_PolicyCtx.pSourceEndpoints, newEndPointPolicyInfo);
+        }            
+        
+    }
+    return POLICY_SUCCESS;    
+}
+
+static int PolicyAddStream(EndPointPolicyInfoT *pCurrEndPointPolicy, StreamInterfaceInfoT *pStreamInfo)
+{
+    StreamPolicyInfoT newStreamPolicyInfo;
+
+    newStreamPolicyInfo.streamID = pStreamInfo->streamID;                    
+    newStreamPolicyInfo.RolePriority = pStreamInfo->iPriority;                    
+    newStreamPolicyInfo.pAudioRole = pStreamInfo->pRoleName;                    
+    newStreamPolicyInfo.interruptBehavior = pStreamInfo->eInterruptBehavior;                    
+    newStreamPolicyInfo.iDuckVolume = 0;                            
+    g_array_append_val(pCurrEndPointPolicy->streamInfo, newStreamPolicyInfo);                    
+    return POLICY_SUCCESS;    
+}
+
+static int PolicyRunningIdleTransition(EndPointPolicyInfoT *pCurrEndPointPolicy,StreamInterfaceInfoT * pStreamInfo)
+{
+    int err=0;
+    if(pCurrEndPointPolicy == NULL || pCurrEndPointPolicy->streamInfo->len == 0)
+    {
+        AFB_ERROR("StreamID not found in active endpoint when running to idle transition is requested");
+        return POLICY_FAIL; 
+    }
+    // Search for the matching stream
+    for(int i=0; i<pCurrEndPointPolicy->streamInfo->len; i++)
+    {
+        StreamPolicyInfoT currentPolicyStreamInfo = g_array_index(pCurrEndPointPolicy->streamInfo,StreamPolicyInfoT,i);
+        if(currentPolicyStreamInfo.streamID == pStreamInfo->streamID)
+        {
+            //remove the current stream
+            g_array_remove_index(pCurrEndPointPolicy->streamInfo, i);            
+            if(pCurrEndPointPolicy->streamInfo->len > 0) //need to unduck
+            {
+                //check the last element(Akways highest priority)
+                StreamPolicyInfoT HighPriorityStreamInfo = g_array_index(pCurrEndPointPolicy->streamInfo,StreamPolicyInfoT,pCurrEndPointPolicy->streamInfo->len-1);
+                switch(currentPolicyStreamInfo.interruptBehavior)
+                {
+                    case INTERRUPTBEHAVIOR_CONTINUE:                                    
+                        //unduck and set Volume back to original value
+                        err = PolicySetVolume(pCurrEndPointPolicy->endpointID, 
+                                             pCurrEndPointPolicy->type,
+                                             pCurrEndPointPolicy->pHalApiName, 
+                                             HighPriorityStreamInfo.pAudioRole, 
+                                             pCurrEndPointPolicy->deviceType, 
+                                             HighPriorityStreamInfo.iDuckVolume,
+                                             false);
+                        if(err)                
+                        {                                
+                            return POLICY_FAIL; 
+                        }
+                        
+                        return POLICY_SUCCESS;                                            
+                    case INTERRUPTBEHAVIOR_PAUSE:
+                        PolicyPostStateEvent(HighPriorityStreamInfo.streamID,STREAM_EVENT_RESUME);                        
+                        return POLICY_SUCCESS;                                            
+                    case INTERRUPTBEHAVIOR_CANCEL:
+                        PolicyPostStateEvent(HighPriorityStreamInfo.streamID,STREAM_EVENT_START);                        
+                        return POLICY_SUCCESS;                                            
+                    default:
+                        AFB_ERROR("Unsupported Intterupt Behavior");
+                        return POLICY_FAIL; 
+                } 
+            }            
+        }
+    }      
+    return POLICY_SUCCESS;
+}
+
+static int PolicyIdleRunningTransition(EndPointPolicyInfoT *pCurrEndPointPolicy, StreamInterfaceInfoT * pStreamInfo)
+{
+    int err=0;    
+    if(pCurrEndPointPolicy->streamInfo == NULL)
+    {
+        AFB_ERROR("pCurrEndPointPolicy->streamInfo is null on an active endpoint");
+        return POLICY_FAIL;        
+    }
+
+    if(pCurrEndPointPolicy->streamInfo->len == 0) //No stream is playing on this endpoint
+    {                           
+        PolicyAddStream(pCurrEndPointPolicy, pStreamInfo);
+    }
+    else //Interrupt case
+    {
+        //check the last element 
+        StreamPolicyInfoT *pCurrentActiveStreamInfo = &g_array_index(pCurrEndPointPolicy->streamInfo,StreamPolicyInfoT,pCurrEndPointPolicy->streamInfo->len-1);
+        g_assert_nonnull(pCurrentActiveStreamInfo);
+        if(pStreamInfo->iPriority >= pCurrentActiveStreamInfo->RolePriority)
+        {
+            switch(pStreamInfo->eInterruptBehavior)
+            {
+                case INTERRUPTBEHAVIOR_CONTINUE:
+                    //Save the current Volume and set the docking volume
+                    pCurrentActiveStreamInfo->iDuckVolume = pStreamInfo->endpoint.iVolume;
+                    StreamConfigT StreamConfig;
+                    err = getStreamConfig(pStreamInfo->pRoleName, &StreamConfig);
+                    if(err == POLICY_FAIL)
+                    {
+                        AFB_ERROR("Error getting stream configuration for audiorole: %s", pStreamInfo->pRoleName);                        
+                        return POLICY_FAIL; 
+                    }
+                    err = PolicySetVolume(pCurrEndPointPolicy->endpointID, 
+                                         pCurrEndPointPolicy->type,
+                                         pCurrEndPointPolicy->pHalApiName, 
+                                         pCurrentActiveStreamInfo->pAudioRole, 
+                                         pCurrEndPointPolicy->deviceType, 
+                                         StreamConfig.iVolumeDuckValue,
+                                         false);
+                    if(err)                
+                    {
+                        AFB_ERROR("Set Volume return with errorcode%i for streamID: %i and Hal:%s", err, pCurrentActiveStreamInfo->streamID, pCurrEndPointPolicy->pHalApiName);                        
+                        return POLICY_FAIL; 
+                    }                                            
+                    break;
+                case INTERRUPTBEHAVIOR_PAUSE:
+                    PolicyPostStateEvent(pCurrentActiveStreamInfo->streamID,STREAM_EVENT_PAUSE);                        
+                    break;
+                case INTERRUPTBEHAVIOR_CANCEL:
+                    PolicyPostStateEvent(pCurrentActiveStreamInfo->streamID,STREAM_EVENT_STOP);                        
+                    g_array_remove_index(pCurrEndPointPolicy->streamInfo, pCurrEndPointPolicy->streamInfo->len-1);
+                    break;
+                default:
+                    AFB_ERROR("Unsupported Intterupt Behavior");
+                    return AHL_POLICY_REJECT; 
+            } 
+
+            //Add the playing stream at last
+            PolicyAddStream(pCurrEndPointPolicy, pStreamInfo);
+        }
+        else
+        {
+            //Higher Priority Stream is playing
+            AFB_ERROR("Higher Priority Stream is playing");
+            return POLICY_FAIL; 
+        }                
+    }
+
+    return POLICY_SUCCESS;
+}
+
+static void PolicySpeedModify(int speed)
+{
+    for(int i=0; i<g_PolicyCtx.pSinkEndpoints->len; i++)
+    {
+        EndPointPolicyInfoT * pCurEndpoint = &g_array_index(g_PolicyCtx.pSinkEndpoints,EndPointPolicyInfoT,i);    
+        if(pCurEndpoint == NULL)
+        {
+            AFB_WARNING("Sink Endpoint not found");
+            return;
+        }
+
+        //check if active 
+        if(pCurEndpoint->streamInfo->len > 0 )
+        {
+            StreamPolicyInfoT * pCurStream = &g_array_index(pCurEndpoint->streamInfo,StreamPolicyInfoT,pCurEndpoint->streamInfo->len-1);            
+            if(strcasecmp(pCurStream->pAudioRole,AHL_ROLE_ENTERTAINMENT)==0)
+            {
+                if(speed > 30 && speed < 100)
+                {
+                    int volume =speed;
+                    PolicySetVolume(pCurEndpoint->endpointID,
+                                    pCurEndpoint->type,                                    
+                                    pCurEndpoint->pHalApiName,
+                                    pCurStream->pAudioRole,
+                                    pCurEndpoint->deviceType,                                    
+                                    volume,
+                                    false); 
+                }                
+            }            
+        }
+    }
+}
+
+static int RetrieveAssociatedHALAPIName(int iAlsaCardNumber,char ** out_pDisplayName,char ** out_pHALName)
+{
+    *out_pDisplayName = NULL;
+    *out_pHALName = NULL;
+
+    if(g_PolicyCtx.pHALList)
+    {
+        for(int i=0; i<g_PolicyCtx.pHALList->len; i++)
+        {
+            HalInfoT *pHalInfo = g_ptr_array_index(g_PolicyCtx.pHALList, i);
+            // Retrieve card number (e.g. hw:0)
+            int iCardNum = atoi(pHalInfo->pDevID+3);
+            if (iCardNum == iAlsaCardNumber) {
+                *out_pDisplayName = pHalInfo->pDisplayName;
+                *out_pHALName = pHalInfo->pAPIName;
+                return POLICY_SUCCESS;
+            }            
+        }
+    }
+    
+    return POLICY_FAIL;
+}
+
+static int GetHALList(void)
+{
+    json_object *j_response = NULL, *j_query = NULL;
+    int err = afb_service_call_sync("alsacore", "hallist", j_query, &j_response);
+    if (err) {
+        AFB_ERROR("Could not retrieve list of HAL from ALSA core");
+        return POLICY_FAIL;
+    }
+    AFB_DEBUG("ALSAcore hallist response=%s", json_object_to_json_string(j_response));
+
+    // Look through returned list for matching card
+    json_object * jRespObj = NULL;
+    json_object_object_get_ex(j_response, "response", &jRespObj);
+    int iNumHAL = json_object_array_length(jRespObj);
+    for ( int i = 0 ; i < iNumHAL; i++)
+    {
+        json_object * jHAL = json_object_array_get_idx(jRespObj,i);
+        char * pDevIDStr = NULL;
+        char * pAPIName = NULL;
+        char * pShortName = NULL;
+        
+        int err = wrap_json_unpack(jHAL, "{s:s,s:s,s:s}", "devid", &pDevIDStr,"api", &pAPIName,"shortname",&pShortName);
+        if (err) {
+            AFB_ERROR("Could not retrieve devid string=%s", json_object_get_string(jHAL));
+            return POLICY_FAIL;
+        }
+
+        HalInfoT *pHalInfo = (HalInfoT*)malloc(sizeof(HalInfoT));
+        if(pHalInfo == NULL)
+        {
+            AFB_ERROR("Unable to allocate memory for HalInfo");
+            return POLICY_FAIL;
+        }
+
+        pHalInfo->pDevID = strdup(pDevIDStr);
+        pHalInfo->pAPIName = strdup(pAPIName);
+        pHalInfo->pDisplayName = strdup(pShortName);
+
+        g_ptr_array_add( g_PolicyCtx.pHALList, pHalInfo);
+    }
+
+    return POLICY_SUCCESS;
+}
+
+//
+//  Policy API Functions
+//
+int Policy_OpenStream(json_object *pStreamJ)
+{
+    StreamInterfaceInfoT Stream;    
+
+    int err = JSONToStream(pStreamJ, &Stream);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_REJECT;     
+    }
+
+    // Example rule -> when system is in shutdown or low power mode, no audio stream can be opened (return AHL_POLICY_REJECT)
+    // Should receive event from lower level layer
+    if(g_PolicyCtx.systemState != SYSTEM_NORMAL)
+    {
+        return AHL_POLICY_REJECT;
+    } 
+  
+    StreamConfigT StreamConfig;
+    err = getStreamConfig(Stream.pRoleName, &StreamConfig);
+    if(err == POLICY_FAIL)
+    {
+        return AHL_POLICY_REJECT;     
+    }
+
+    // Volume support only possible through ALSA
+    if(Stream.endpoint.deviceURIType != DEVICEURITYPE_NOT_ALSA) {
+        err = PolicyGetVolume(Stream.endpoint.endpointID, 
+                              Stream.endpoint.type,
+                              Stream.endpoint.gsHALAPIName, 
+                              Stream.endpoint.pRoleName, 
+                              Stream.endpoint.deviceURIType, 
+                              &Stream.endpoint.iVolume);
+        if(err == POLICY_FAIL)
+        {
+            return AHL_POLICY_REJECT;
+        }
+    }
+
+    err = PolicyAddEndPoint(&Stream);
+    if(err == POLICY_FAIL)
+    {
+        return AHL_POLICY_REJECT;
+    }
+    return AHL_POLICY_ACCEPT; 
+}
+
+int Policy_CloseStream(json_object *pStreamJ)
+{
+    StreamInterfaceInfoT Stream;    
+    int err = JSONToStream(pStreamJ, &Stream);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_REJECT;     
+    }
+
+    return AHL_POLICY_ACCEPT; 
+}
+
+int  Policy_SetStreamState(json_object *pStreamJ)
+{  
+    // Optional TODO: Could mute endpoint before activation, unmute afterwards (after a delay?) to avoid noises
+
+    StreamStateT streamState = 0;
+    StreamInterfaceInfoT Stream;
+
+    int err = JSONToStream(pStreamJ, &Stream);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_REJECT;     
+    }
+
+    json_object *streamStateJ = NULL;
+
+    if(!json_object_object_get_ex(pStreamJ, "arg_stream_state", &streamStateJ))
+    {
+        return AHL_POLICY_REJECT;     
+    }
+    streamState = (StreamStateT)json_object_get_int(streamStateJ);
+
+    // Change of state
+    if(Stream.streamState != streamState)
+    {
+        //seach corresponding endpoint and gather information on it        
+        EndPointPolicyInfoT *pCurrEndPointPolicy = PolicySearchEndPoint(Stream.endpoint.type , Stream.endpoint.gsDeviceName);
+    
+        switch(Stream.streamState)
+        {
+            case STREAM_STATE_IDLE:            
+                switch(streamState)
+                {
+                    case STREAM_STATE_RUNNING:
+                        err = PolicyIdleRunningTransition(pCurrEndPointPolicy, &Stream);
+                        if(err)
+                        {
+                            return AHL_POLICY_REJECT;  
+                        }                        
+                        PolicyPostStateEvent(Stream.streamID,STREAM_EVENT_START); 
+                        break;
+                    case STREAM_STATE_PAUSED:
+                        err = PolicyIdleRunningTransition(pCurrEndPointPolicy, &Stream);
+                        if(err)
+                        {
+                            return AHL_POLICY_REJECT;  
+                        }  
+                        PolicyPostStateEvent(Stream.streamID,STREAM_EVENT_PAUSE); 
+                        break;
+                    default:
+                        return AHL_POLICY_REJECT;  
+                }
+                break;
+            case STREAM_STATE_RUNNING:    
+                switch(streamState)
+                {
+                    case STREAM_STATE_IDLE:
+                        err = PolicyRunningIdleTransition(pCurrEndPointPolicy, &Stream);
+                        if(err)
+                        {
+                            return AHL_POLICY_REJECT;  
+                        }                                            
+                        PolicyPostStateEvent(Stream.streamID,STREAM_EVENT_STOP);                                       
+                        break;
+                    case STREAM_STATE_PAUSED:
+                        PolicyPostStateEvent(Stream.streamID,STREAM_EVENT_PAUSE);                                       
+                        break;
+                    default:
+                        return AHL_POLICY_REJECT;  
+                }
+                break;
+            case STREAM_STATE_PAUSED:    
+                switch(streamState)
+                {
+                    case STREAM_STATE_IDLE:
+                        err = PolicyRunningIdleTransition(pCurrEndPointPolicy, &Stream);
+                        if(err)
+                        {
+                            return AHL_POLICY_REJECT;  
+                        }                        
+                        PolicyPostStateEvent(Stream.streamID,STREAM_EVENT_STOP);    
+                        break;
+                    case STREAM_STATE_RUNNING:
+                        PolicyPostStateEvent(Stream.streamID,STREAM_EVENT_RESUME); 
+                        break;                 
+                    default:
+                        return AHL_POLICY_REJECT;  
+                }
+                break;
+            default:
+                return AHL_POLICY_REJECT;  
+        }      
+    }
+    return AHL_POLICY_ACCEPT; 
+}
+
+int  Policy_SetStreamMute(json_object *pStreamJ)
+{
+    // Note: stream mute currently implemented directly using ALSA volume. It should later be implemented with a distinct mute switch control instead
+    StreamMuteT streamMute = 0;
+    StreamInterfaceInfoT Stream;    
+
+    int err = JSONToStream(pStreamJ, &Stream);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_REJECT;     
+    }
+
+    json_object *streamMuteJ=NULL;
+
+    if(!json_object_object_get_ex(pStreamJ, "mute_state", &streamMuteJ))
+    {
+        return AHL_POLICY_REJECT;     
+    }
+    streamMute = (StreamMuteT)json_object_get_int(streamMuteJ);
+
+    if(streamMute != Stream.streamMute)
+    {
+        if(streamMute == STREAM_MUTED)
+        {
+            err = PolicySetVolume(Stream.endpoint.endpointID, 
+                                Stream.endpoint.type,
+                                Stream.endpoint.gsHALAPIName,
+                                Stream.pRoleName,
+                                Stream.endpoint.deviceURIType,
+                                0,     // mute volume                                 
+                                true); // no ramp and no volume event
+            if(err)                
+            {
+                AFB_ERROR("StreamID:%i Set Volume return with errorcode%i",Stream.streamID, err);                        
+                return AHL_POLICY_REJECT;  
+            }   
+            PolicyPostStateEvent(Stream.streamID,STREAM_EVENT_MUTED); 
+        }
+        else
+        {
+            err = PolicySetVolume(Stream.endpoint.endpointID,
+                                Stream.endpoint.type,
+                                Stream.endpoint.gsHALAPIName,
+                                Stream.pRoleName,
+                                Stream.endpoint.deviceURIType,                                    
+                                Stream.endpoint.iVolume, // restore volume
+                                true); // no ramp and no volume event 
+            if(err)                
+            {
+                AFB_ERROR("Endpoint:%i Set Volume return with errorcode%i",Stream.streamID, err);                        
+                return AHL_POLICY_REJECT;  
+            }   
+            PolicyPostStateEvent(Stream.streamID,STREAM_EVENT_UNMUTED); 
+        }
+    }
+    
+    return AHL_POLICY_ACCEPT;
+}
+
+int Policy_SetVolume(json_object *pEndpointJ)
+{
+    char *volumeStr = NULL;
+    EndPointInterfaceInfoT Endpoint;
+  
+    int err = JSONToEndpoint(pEndpointJ, &Endpoint);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_REJECT;     
+    }
+
+    json_object *volumeJ = NULL;
+    if(!json_object_object_get_ex(pEndpointJ, "arg_volume", &volumeJ))
+    {
+        return AHL_POLICY_REJECT;     
+    }
+    volumeStr = (char*)json_object_get_string(volumeJ);
+
+    // TODO: Parse volume string to support increment/absolute/percent notation
+    int vol = atoi(volumeStr);
+    
+    // Set the volume
+    err = PolicySetVolume(Endpoint.endpointID, 
+                          Endpoint.type,
+                          Endpoint.gsHALAPIName,
+                          Endpoint.pRoleName,
+                          Endpoint.deviceURIType,                            
+                          vol,
+                          false);  // Volume ramp and send events  
+    if (err) 
+    {
+        AFB_ERROR("Set Volume return with errorcode %i", err);    
+        return AHL_POLICY_REJECT;
+    }
+
+    return AHL_POLICY_ACCEPT; 
+}
+
+int Policy_SetProperty(json_object *pEndpointJ)
+{
+    char *propertyName = NULL;
+    EndPointInterfaceInfoT Endpoint;
+
+    int err = JSONToEndpoint(pEndpointJ, &Endpoint);
+    if(err == AHL_POLICY_UTIL_FAIL)
+    {
+        return AHL_POLICY_REJECT;     
+    }
+
+    json_object *propertyNameJ = NULL;
+    if(!json_object_object_get_ex(pEndpointJ, "arg_property_name", &propertyNameJ))
+    {
+        return AHL_POLICY_REJECT;     
+    }
+    propertyName = (char*)json_object_get_string(propertyNameJ);
+
+    json_object *propValueJ = NULL;
+    if(!json_object_object_get_ex(pEndpointJ, "arg_property_value", &propValueJ))
+    {
+        return AHL_POLICY_REJECT;     
+    }
+    json_type currentTypeJ = json_object_get_type(propValueJ);
+
+    json_object *propArray = NULL;
+    if(!json_object_object_get_ex(pEndpointJ, "properties", &propArray))
+    {
+        return AHL_POLICY_REJECT;     
+    }
+
+    int iPropArrayLen = json_object_array_length(propArray);        
+    int foundProperty = 0;
+    
+    for (int i = 0; i < iPropArrayLen; i++) 
+    {
+        // get the i-th object in medi_array
+        json_object *propElementJ = json_object_array_get_idx(propArray, i);
+        if(propElementJ)
+        {
+            json_object *propElementNameJ=NULL;
+            if(json_object_object_get_ex(propElementJ, "property_name", &propElementNameJ))
+            {
+                char *propElementName = (char*)json_object_get_string(propElementNameJ);   
+                if(strcasecmp(propElementName,propertyName)==0)         
+                {
+                    json_object *propElementValueJ=NULL;
+                    if(!json_object_object_get_ex(propElementJ, "property_value", &propElementValueJ))
+                    {
+                        json_type elementTypeJ = json_object_get_type(propElementValueJ);
+
+                        // Apply policy on set property if needed here
+                        // Here we only validate that the type is the same
+                        if(currentTypeJ != elementTypeJ)
+                        {
+                            AFB_ERROR("Property Value Type is wrong");
+                            return AHL_POLICY_REJECT; 
+                        }
+                        foundProperty = 1;
+                        break;   
+                    }
+                }
+            }                        
+        }
+    }
+
+    if(foundProperty== 0)
+    {
+        AFB_ERROR("Can't find property %s, request will be rejected", propertyName);
+        return AHL_POLICY_REJECT;  
+    }
+
+    // Create a new Json Object    
+    json_object *pEventDataJ = NULL;
+    err = wrap_json_pack(&pEventDataJ,"{s:s,s:i,s:i,s:s,s:o,s:s}",
+                        "event_name", AHL_ENDPOINT_PROPERTY_EVENT,
+                        "endpoint_id", Endpoint.endpointID, 
+                        "endpoint_type", Endpoint.type,
+                        "property_name", propertyName,
+                        "value",propValueJ, 
+                        "audio_role", Endpoint.pRoleName);
+    if(err)
+    {
+        AFB_ERROR("Unable to pack property event");        
+        return AHL_POLICY_REJECT;
+    }
+
+    // Raise Event to update HLB
+    audiohlapi_raise_event(pEventDataJ);
+
+    return AHL_POLICY_ACCEPT;
+}
+
+int Policy_PostAction(json_object *pPolicyActionJ)
+{
+    char * actionName = NULL;  
+    char * audioRole = NULL;
+    char * mediaName = NULL;
+    json_object *actionContext = NULL;
+
+    int err = wrap_json_unpack(pPolicyActionJ, "{s:s,s:s,s?s,s?o}", "action_name", &actionName,"audio_role",&audioRole,"media_name",&mediaName,"action_context",&actionContext);
+    if (err) {
+        AFB_ERROR("Unable to pack JSON endpoint, =%s", wrap_json_get_error_string(err));
+        return AHL_POLICY_REJECT;
+    }
+    
+    // TODO: Any event with media specified should trigger action on provided rendering services (e.g. Wwise binding, gstreamer file player wrapper, MPDC? simple ALSA player (aplay)?)
+    // Example (when the policy is hooked to CAN events). Post audio playback events other than safety during reverse gear engaged declined
+    // Example post HMI audio role playback events declined when higher priority streams are active
+    
+    //In this use case just return the action back to highlevel binding.
+
+    json_object *pEventDataJ = NULL;
+    err = wrap_json_pack(&pEventDataJ, "{s:s,s:s,s:s,s?s,s?o}", "event_name", AHL_POST_ACTION_EVENT, "action_name", &actionName,"audio_role",&audioRole,"media_name",&mediaName,"action_context",&actionContext);
+    if (err) {
+        AFB_ERROR("Unable to pack JSON endpoint, =%s", wrap_json_get_error_string(err));
+        return AHL_POLICY_REJECT;
+    }
+
+    audiohlapi_raise_event(pEventDataJ);
+
+    return AHL_POLICY_ACCEPT;
+}
+
+int Policy_Endpoint_Init(json_object *pInPolicyEndpointJ,json_object **pOutPolicyEndpointJ)
+{
+    endpointID_t endpointID = AHL_UNDEFINED;
+    EndpointTypeT endpointType = ENDPOINTTYPE_MAXVALUE;
+    DeviceURITypeT deviceURIType = DEVICEURITYPE_MAXVALUE;
+    int iAllocString = 0;
+    char * pRoleName = NULL;
+    int iAlsaCardNumber = AHL_UNDEFINED;
+    char * pDeviceName = NULL;
+    int err = wrap_json_unpack(pInPolicyEndpointJ,"{s:i,s:i,s:i,s:s,s:i,s:s}",
+                            "endpoint_id",&endpointID,
+                            "endpoint_type",&endpointType,
+                            "device_uri_type",&deviceURIType,
+                            "audio_role",&pRoleName,
+                            "alsa_cardNum", &iAlsaCardNumber,
+                            "device_name", &pDeviceName ); 
+    if (err) {
+        AFB_ERROR("Unable to unpack JSON endpoint, =%s", wrap_json_get_error_string(err));
+        goto OnError;          
+    }
+
+    StreamConfigT StreamConfig;
+    getStreamConfig(pRoleName, &StreamConfig);
+
+    char * pDisplayName = NULL;
+    char * pHALName = NULL;
+    if (deviceURIType != DEVICEURITYPE_NOT_ALSA) {
+        // Update Hal Name
+        err = RetrieveAssociatedHALAPIName(iAlsaCardNumber,&pDisplayName,&pHALName);
+        if (err) {
+            AFB_WARNING("HAL not found for device %s", pDeviceName);            
+            pDisplayName = g_strdup(AHL_POLICY_UNDEFINED_DISPLAYNAME);
+            pHALName = g_strdup(AHL_POLICY_UNDEFINED_HALNAME);
+            iAllocString = 1;
+        }
+        else
+        {
+            // Set initial Volume
+            err = PolicySetVolume(endpointID, 
+                                endpointType,
+                                pHALName, 
+                                pRoleName, 
+                                deviceURIType, 
+                                StreamConfig.iVolumeInit,
+                                true); // Do not raise event and no volume ramp
+            if(err) {  
+                goto OnError;                            
+            }
+        }
+    }
+    else {
+        // Set display / HAL for non ALSA devices (default)
+        pDisplayName = g_strdup(AHL_POLICY_UNDEFINED_DISPLAYNAME);
+        pHALName = g_strdup(AHL_POLICY_UNDEFINED_HALNAME);
+        iAllocString = 1;
+    }
+
+    // Populate special device property (TODO: Should be obtained from HAL)
+    // if (strcasecmp(gsHALAPIName,"Device")==0)
+    // {
+            // Create json object for PropTable
+            json_object *pPropTableJ = json_object_new_array();
+            Add_Endpoint_Property_Int(pPropTableJ,AHL_PROPERTY_EQ_LOW,3);
+            Add_Endpoint_Property_Int(pPropTableJ,AHL_PROPERTY_EQ_MID,0);
+            Add_Endpoint_Property_Int(pPropTableJ,AHL_PROPERTY_EQ_HIGH,6);
+            Add_Endpoint_Property_Int(pPropTableJ,AHL_PROPERTY_BALANCE,0);
+            Add_Endpoint_Property_Int(pPropTableJ,AHL_PROPERTY_FADE,30);
+            Add_Endpoint_Property_String(pPropTableJ,"preset_name","flat");
+    // }
+ 
+    err = wrap_json_pack(pOutPolicyEndpointJ,"{s:i,s:s,s:s,s:o}",
+                    "init_volume",StreamConfig.iVolumeInit,
+                    "display_name",pDisplayName,
+                    "hal_name",pHALName,
+                    "property_table",pPropTableJ
+                    );
+    if (err) {
+        AFB_ERROR("Unable to pack JSON endpoint, =%s", wrap_json_get_error_string(err));
+        goto OnError;                                    
+    }
+    
+    // TODO: Future policy binding to return request response with pOutPolicyEndpointJ (instead of output argument)
+    return AHL_POLICY_ACCEPT; // No errors
+
+OnError:
+    if (iAllocString) {
+        g_free(pDisplayName);
+        g_free(pHALName);
+    }
+    return AHL_POLICY_REJECT;
+
+}
+
+int Policy_Init()
+{
+    // Start fresh
+    memset(&g_PolicyCtx,0,sizeof(g_PolicyCtx));
+
+    // Initialize Ressources
+    g_PolicyCtx.pSourceEndpoints = g_array_new(FALSE,TRUE,sizeof(EndPointPolicyInfoT));
+    g_PolicyCtx.pSinkEndpoints = g_array_new(FALSE,TRUE,sizeof(EndPointPolicyInfoT));    
+    g_PolicyCtx.pHALList = g_ptr_array_new_with_free_func(g_free);
+
+    //Require AlsaCore Dependency
+    int err = afb_daemon_require_api_v2(AHL_POLICY_ALSA_API,1) ;
+    if( err != 0 )
+    {
+        AFB_ERROR("Audio Policy could not set dependency on alsacore API");
+        return AHL_POLICY_REJECT;
+    }
+
+    // Get HalList
+    GetHALList();
+
+    // TODO: Register events from low level / HAL for dynamic changes
+
+    // Set System Normal for now, this should be set by an event 
+    g_PolicyCtx.systemState = SYSTEM_NORMAL;
+
+
+
+#ifdef AK_POLICY_DEMO
+    // Register audio backend events (TODO: should instead do this with signal composer with appropriate dependency)
+    // This is to simulate can bus, only used for demo
+    json_object *queryurl = NULL, *responseJ = NULL, *eventsJ = NULL;
+    eventsJ = json_object_new_array();
+    json_object_array_add(eventsJ, json_object_new_string("audiod_system_event"));
+    queryurl = json_object_new_object();
+    json_object_object_add(queryurl, "events", eventsJ);
+    int returnResult = afb_service_call_sync("audiod", "subscribe", queryurl, &responseJ);
+    if (returnResult) {
+        AFB_ERROR("Fail subscribing to Audio Backend System events");
+        return AHL_POLICY_REJECT;
+    }
+#endif
+
+
+    return AHL_POLICY_ACCEPT;
+}
+ 
+void Policy_Term()
+{
+    // Free Ressources
+    if (g_PolicyCtx.pHALList) {
+        g_ptr_array_free(g_PolicyCtx.pHALList,TRUE);
+        g_PolicyCtx.pHALList = NULL;
+    }
+
+    for(int i=0; i<g_PolicyCtx.pSourceEndpoints->len; i++)
+    {
+        EndPointPolicyInfoT * pCurEndpoint = &g_array_index(g_PolicyCtx.pSourceEndpoints,EndPointPolicyInfoT,i);    
+        g_array_free(pCurEndpoint->streamInfo,TRUE);
+        pCurEndpoint->streamInfo= NULL;
+    }
+
+    for(int i=0; i<g_PolicyCtx.pSinkEndpoints->len; i++)
+    {
+        EndPointPolicyInfoT * pCurEndpoint = &g_array_index(g_PolicyCtx.pSinkEndpoints,EndPointPolicyInfoT,i);    
+        g_array_free(pCurEndpoint->streamInfo,TRUE);
+        pCurEndpoint->streamInfo = NULL;
+    }
+    
+    g_array_free(g_PolicyCtx.pSourceEndpoints,TRUE);
+    g_PolicyCtx.pSourceEndpoints = NULL;
+    g_array_free(g_PolicyCtx.pSinkEndpoints,TRUE);
+    g_PolicyCtx.pSinkEndpoints = NULL;
+}
+
+// For demo purpose only, should be listening to signal composer / CAN events instead
+void Policy_OnEvent(const char *evtname, json_object *eventJ)
+{
+    AFB_DEBUG("Policy received event %s", evtname);
+	char *eventName = NULL;
+	json_object *event_parameter = NULL;
+    int speed = 0;
+
+    if(strcasecmp(evtname, "audiod/system_events")==0)
+    {
+        int err = wrap_json_unpack(eventJ, "{s:s,s:o}", "event_name", &eventName, "event_parameter", &event_parameter);
+        if (err) {        
+            AFB_WARNING("Invalid arguments, Args not a valid json object query=%s", json_object_get_string(eventJ));
+            return;
+        }
+    
+        if(strcasecmp(eventName, "speed")==0)
+        {
+            AFB_NOTICE("Invalid arguments, Args not a valid json object query=%s", json_object_get_string(event_parameter));
+            err = wrap_json_unpack(event_parameter, "{s:i}", "speed_value", &speed);
+            if (err) {        
+                AFB_WARNING("Invalid arguments, Args not a valid json object query=%s", json_object_get_string(event_parameter));
+                return;
+            }   
+            // When speed change Modify volume on Endpoint where entertainment change
+            PolicySpeedModify(speed);
+        }
+    }
+}
+
+#endif // AHL_DISCONNECT_POLICY
\ No newline at end of file
diff --git a/ahl-policy/ahl-policy.h b/ahl-policy/ahl-policy.h
new file mode 100644
index 0000000..0200973
--- /dev/null
+++ b/ahl-policy/ahl-policy.h
@@ -0,0 +1,49 @@
+/*
+ * Copyright (C) 2017 "Audiokinetic Inc"
+ *
+ * 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 AHL_POLICY_INCLUDE
+#define AHL_POLICY_INCLUDE
+
+#include "ahl-policy-utils.h"
+
+#ifndef AHL_DISCONNECT_POLICY
+
+#define MAX_ACTIVE_STREAM_POLICY 30
+#define POLICY_FAIL     1
+#define POLICY_SUCCESS  0
+
+#define AHL_POLICY_UNDEFINED_HALNAME "UNDEFINED"
+#define AHL_POLICY_UNDEFINED_DISPLAYNAME "DeviceNotFound"
+
+#define AHL_POLICY_ALSA_API "alsacore"
+
+int  Policy_Endpoint_Init(json_object *pInPolicyEndpointJ,json_object **pOutPolicyEndpointJ);
+int  Policy_OpenStream(json_object *pStreamJ);
+int  Policy_CloseStream(json_object *pStreamJ);
+int  Policy_SetStreamState(json_object *pStreamJ);
+int  Policy_SetStreamMute(json_object *pStreamJ);
+int  Policy_PostAction(json_object *pActionJ);
+int  Policy_SetVolume(json_object *pEndpointJ);
+int  Policy_SetProperty(json_object *pEndpointJ);
+int  Policy_Init();
+void Policy_Term(); 
+void Policy_OnEvent(const char *evtname, json_object *eventJ);
+
+// TODO: To be replaced by AGL events once policy is isolated in its own binding
+extern void audiohlapi_raise_event(json_object * pEventDataJ);
+
+#endif // AHL_DISCONNECT_POLICY
+#endif // AHL_POLICY_INCLUDE
\ No newline at end of file