diff options
Diffstat (limited to 'src/ahl-policy.c')
| -rw-r--r-- | src/ahl-policy.c | 1118 |
1 files changed, 1090 insertions, 28 deletions
diff --git a/src/ahl-policy.c b/src/ahl-policy.c index fa050af..110f7e9 100644 --- a/src/ahl-policy.c +++ b/src/ahl-policy.c @@ -18,8 +18,11 @@ #define _GNU_SOURCE #include <stdio.h> #include <string.h> - +#include <stdbool.h> #include "ahl-binding.h" +#include "wrap-json.h" + +#define MAX_ACTIVE_STREAM_POLICY 30 // This file provides example of custom, business logic driven policy actions that can affect behavior of the high level // TODO: Currently only isolated in separate source file. Objective is to make this to at least a shared lib plug-in (shared C context) @@ -27,65 +30,895 @@ extern AHLCtxT g_AHLCtx; // TODO: Cannot stay if moved to external module -static void Add_Endpoint_Property_Numeric( EndpointInfoT * io_pEndpointInfo, char * in_pPropertyName, int in_iPropertyValue) +typedef struct StreamPolicyInfo { + int RolePriority; + int iVolume; + int iVolumeSavedMute; + streamID_t streamID; + InterruptedBehaviorT interruptBehavior; +} StreamPolicyInfoT; + + +typedef struct EndPointPolicyInfo { + int endpointKey; + endpointID_t endpointID; + EndpointTypeT type; + 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; + + +// 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 + GArray * pStreamOpenPerPolicy; //List of number of openstream per policy + GArray * pMaxStreamOpenPerPolicy; //List of number of openstream per policy + GArray * pVolDuckPerPolicy; //List of number of openstream per policy + SystemStateT systemState; +} PolicyLocalCtxT; + +PolicyLocalCtxT g_PolicyCtx; + + +//Helper Functions +static void Add_Endpoint_Property_Double( EndpointInfoT * io_pEndpointInfo, char * in_pPropertyName, double in_dPropertyValue) +{ + json_object * propValueJ = json_object_new_double(in_dPropertyValue); + g_hash_table_insert(io_pEndpointInfo->pPropTable, in_pPropertyName, propValueJ); +} + + +static void Add_Endpoint_Property_Int( EndpointInfoT * io_pEndpointInfo, char * in_pPropertyName, int in_iPropertyValue) { json_object * propValueJ = json_object_new_int(in_iPropertyValue); g_hash_table_insert(io_pEndpointInfo->pPropTable, in_pPropertyName, propValueJ); } -static void Add_Endpoint_Property_String( EndpointInfoT * io_pEndpointInfo, char * in_pPropertyName, char * in_pPropertyValue) +static void Add_Endpoint_Property_String( EndpointInfoT * io_pEndpointInfo, char * in_pPropertyName, const char * in_pPropertyValue) { json_object * propValueJ = json_object_new_string(in_pPropertyValue); g_hash_table_insert(io_pEndpointInfo->pPropTable, in_pPropertyName, propValueJ); } -int Policy_OpenStream(char *pAudioRole, EndpointTypeT endpointType, endpointID_t endpointID) +static int PolicySetVolume(EndpointInfoT * pEndpointInfo, int iVolume) +{ + + // Using audio role available from endpoint to target the right HAL control (build string based on convention) + GString * gsHALControlName; + switch(pEndpointInfo->deviceURIType) + { + 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(pEndpointInfo->gsAudioRole->str); + g_string_append(gsHALControlName,"_Vol"); // Or _Vol for direct control (no ramping) + break; + default: + //Set volume to zero for display purpose only. + //Not support yet + AFB_WARNING("Endpoint %s is not support Device Type and can't set volume",pEndpointInfo->gsDeviceName->str); + break; + } + + // Set endpoint volume using HAL services (leveraging ramps etc.) + json_object *j_response, *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",json_object_to_json_string(j_query)); + return err; + } + + //TODO implement Volume limitation based on policy + + // Set the volume using the HAL + err = afb_service_call_sync(pEndpointInfo->gsHALAPIName->str, "ctlset", j_query, &j_response); + if (err) + { + AFB_ERROR("Could not ctlset on HAL: %s",pEndpointInfo->gsHALAPIName->str); + return err; + } + AFB_DEBUG("HAL ctlset response=%s", json_object_to_json_string(j_response)); + + // Package event data + json_object * eventDataJ = NULL; + err = wrap_json_pack(&eventDataJ,"{s:i,s:i,s:i}","endpoint_id", pEndpointInfo->endpointID,"endpoint_type",pEndpointInfo->type,"value",iVolume); + if (err) + { + AFB_ERROR("Invalid event data for volume event, Invalid event data for volume event: %s",json_object_to_json_string(eventDataJ)); + return err; + } + afb_event_push(g_AHLCtx.policyCtx.volumeEvent,eventDataJ); + + pEndpointInfo->iVolume = iVolume; + + return 0; +} + + +static int PolicySetVolumeMute(EndpointInfoT * pEndpointInfo, int iVolume) +{ + + // Using audio role available from endpoint to target the right HAL control (build string based on convention) + GString * gsHALControlName; + switch(pEndpointInfo->deviceURIType) + { + 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(pEndpointInfo->gsAudioRole->str); + g_string_append(gsHALControlName,"_Vol"); // Or _Vol for direct control (no ramping) + break; + default: + //Set volume to zero for display purpose only. + //Not support yet + AFB_WARNING("Endpoint %s is not support Device Type and can't set volume",pEndpointInfo->gsDeviceName->str); + break; + } + + // Set endpoint volume using HAL services (leveraging ramps etc.) + json_object *j_response, *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",json_object_to_json_string(j_query)); + return err; + } + + //TODO implement Volume limitation based on policy + + // Set the volume using the HAL + err = afb_service_call_sync(pEndpointInfo->gsHALAPIName->str, "ctlset", j_query, &j_response); + if (err) + { + AFB_ERROR("Could not ctlset on HAL: %s",pEndpointInfo->gsHALAPIName->str); + return err; + } + AFB_DEBUG("HAL ctlset response=%s", json_object_to_json_string(j_response)); + + // Package event data + json_object * eventDataJ = NULL; + err = wrap_json_pack(&eventDataJ,"{s:i,s:i,s:i}","endpoint_id", pEndpointInfo->endpointID,"endpoint_type",pEndpointInfo->type,"value",iVolume); + if (err) + { + AFB_ERROR("Invalid event data for volume event, Invalid event data for volume event: %s",json_object_to_json_string(eventDataJ)); + return err; + } + afb_event_push(g_AHLCtx.policyCtx.volumeEvent,eventDataJ); + + return 0; +} + + +static int PolicySetVolumeRamp(EndpointInfoT * pEndpointInfo, int iVolume) { - // TODO: Example rule -> when system is in shutdown or low power mode, no audio stream can be opened (return AHL_POLICY_REJECT) + + // Using audio role available from endpoint to target the right HAL control (build string based on convention) + GString * gsHALControlName; + switch(pEndpointInfo->deviceURIType) + { + case DEVICEURITYPE_ALSA_HW: + gsHALControlName = g_string_new("Master_Ramp"); + break; + case DEVICEURITYPE_ALSA_DMIX: + case DEVICEURITYPE_ALSA_DSNOOP: + case DEVICEURITYPE_ALSA_PLUG: + case DEVICEURITYPE_ALSA_SOFTVOL: + gsHALControlName = g_string_new(pEndpointInfo->gsAudioRole->str); + g_string_append(gsHALControlName,"_Ramp"); // Or _Vol for direct control (no ramping) + break; + default: + //Set volume to zero for display purpose only. + //Not support yet + AFB_WARNING("Endpoint %s is not a support Device Type and can't set volume",pEndpointInfo->gsDeviceName->str); + break; + } + + // Set endpoint volume using HAL services (leveraging ramps etc.) + json_object *j_response, *j_query = NULL; + + // Package query + int err = wrap_json_pack(&j_query,"{s:s,s:i}","label",gsHALControlName->str, "val",iVolume); + if (err) + { + AFB_WARNING("Invalid query for HAL ctlset: %s",json_object_to_json_string(j_query)); + return err; + } + + //TODO implement Volume limitation based on policy + + // Set the volume using the HAL + err = afb_service_call_sync(pEndpointInfo->gsHALAPIName->str, "ctlset", j_query, &j_response); + if (err) + { + AFB_WARNING("Could not ctlset on HAL: %s",pEndpointInfo->gsHALAPIName->str); + return err; + } + AFB_DEBUG("HAL ctlset response=%s", json_object_to_json_string(j_response)); + + // Package event data + json_object * eventDataJ = NULL; + err = wrap_json_pack(&eventDataJ,"{s:i,s:i,s:i, s:s}","endpoint_id", pEndpointInfo->endpointID,"endpoint_type",pEndpointInfo->type,"value",iVolume, "audio_role",gsHALControlName->str); + if (err) + { + AFB_WARNING("Invalid event data for volume event, Invalid event data for volume event: %s",json_object_to_json_string(eventDataJ)); + return err; + } + afb_event_push(g_AHLCtx.policyCtx.volumeEvent,eventDataJ); + + pEndpointInfo->iVolume = iVolume; + + return 0; +} + +static int PolicyGetVolume(EndpointInfoT * pEndpointInfo) +{ + + + GString * gsHALControlName; + + // Using audio role available from endpoint to target the right HAL control (build string based on convention) + switch(pEndpointInfo->deviceURIType) + { + 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(pEndpointInfo->gsAudioRole->str); + g_string_append(gsHALControlName,"_Vol"); // Or _Vol for direct control (no ramping) + break; + default: + //Set volume to zero for display purpose only. + //Not support yet + pEndpointInfo->iVolume = 0; + AFB_WARNING("Endpoint %s is a support Device Type and can't get volume",pEndpointInfo->gsDeviceName->str); + break; + } + + // Set endpoint volume using HAL services (leveraging ramps etc.) + json_object *j_response, *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",json_object_to_json_string(j_query)); + return err; + } + + //TODO implement Volume limitation based on policy + + // Set the volume using the HAL + err = afb_service_call_sync(pEndpointInfo->gsHALAPIName->str, "ctlget", j_query, &j_response); + if (err) + { + AFB_WARNING("Could not ctlset on HAL: %s",pEndpointInfo->gsHALAPIName->str); + return err; + } + 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 -1; + } + + } + 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 -1; + } + + } + + pEndpointInfo->iVolume = val1; + + return 0; +} + +static void PolicyPostStateEvent(struct afb_event streamStateEvent, StreamEventT eventState) +{ + + json_object * eventDataJ = NULL; + int err = wrap_json_pack(&eventDataJ,"{s:i}","stateEvent",eventState); + if (err) + { + AFB_ERROR("Invalid event data for stream state event: %s",json_object_to_json_string(eventDataJ)); + } + else + { + afb_event_push(streamStateEvent,eventDataJ); + } +} + +//This function is based on ALSA right now but it could be adapt to support other framework like pulseaudio or gstreamer +static int PolicyGenEndPointKey(EndpointInfoT *pEndPointInfo) +{ + return (pEndPointInfo->type << 24)|(pEndPointInfo->alsaInfo.cardNum << 16)|(pEndPointInfo->alsaInfo.deviceNum << 8)|(pEndPointInfo->alsaInfo.subDeviceNum); +} + +static EndPointPolicyInfoT *PolicySearchEndPoint(EndpointTypeT type, int key) +{ + 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(pCurEndpoint->endpointKey == key) + { + return pCurEndpoint; + } + } + + return NULL; +} + +static StreamPolicyInfoT *PolicySearchStream(EndPointPolicyInfoT * pCurEndpoint, int streamID) +{ + + for(int i=0; i<pCurEndpoint->streamInfo->len; i++) + { + StreamPolicyInfoT * pCurStream = &g_array_index(pCurEndpoint->streamInfo,StreamPolicyInfoT,i); + + if(pCurStream->streamID == streamID) + { + return pCurStream; + } + } + + return NULL; +} + + +static StreamInfoT * PolicyGetActiveStream(streamID_t in_streamID) +{ + int iNumActiveStreams = g_AHLCtx.policyCtx.pActiveStreams->len; + StreamInfoT * pStreamInfo = NULL; + for ( int i = 0; i < iNumActiveStreams ; i++ ) { + StreamInfoT * pCurStreamInfo = &g_array_index(g_AHLCtx.policyCtx.pActiveStreams,StreamInfoT,i); + if (pCurStreamInfo->streamID == in_streamID){ + pStreamInfo = pCurStreamInfo; + break; + } + } + return pStreamInfo; +} + + +static int PolicyFindRoleIndex( const char * in_pAudioRole) +{ + int index = -1; // Not found + for (int i = 0; i < g_AHLCtx.policyCtx.iNumberRoles; i++) + { + GString gs = g_array_index( g_AHLCtx.policyCtx.pAudioRoles, GString, i ); + if ( strcasecmp(gs.str,in_pAudioRole) == 0 ) + { + index = i; + break; + } + } + return index; +} + +static int PolicyRemoveStream(EndPointPolicyInfoT *pCurrEndPointPolicy, int RemoveIndex) +{ + //Validate + if(RemoveIndex >= pCurrEndPointPolicy->streamInfo->len) + { + return -1; + + } + + + g_array_remove_index(pCurrEndPointPolicy->streamInfo,RemoveIndex); + + if(pCurrEndPointPolicy->streamInfo->len == 0) + { + + //Free streem + g_array_free(pCurrEndPointPolicy->streamInfo,TRUE); + pCurrEndPointPolicy->streamInfo = NULL; + + GArray *pcurEndpointArray = NULL; + + if(pCurrEndPointPolicy->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(pCurEndpoint->endpointKey == pCurrEndPointPolicy->endpointKey) + { + g_array_remove_index(pcurEndpointArray, i); + return 0; + } + } + } + + return 0; +} + +static int PolicyRunningIdleTransition(EndPointPolicyInfoT *pCurrEndPointPolicy,StreamInfoT * pStreamInfo) +{ + if(pCurrEndPointPolicy == NULL) + { + //Remove endpoint + AFB_ERROR("No Active Endpoint has been found"); + return -1; + } + + if(pCurrEndPointPolicy->streamInfo->len>0) + { + //Search for the matching stream + int iNumStream = pCurrEndPointPolicy->streamInfo->len; + for(int i=0; i<iNumStream; i++) + { + StreamPolicyInfoT currentPolicyStreamInfo = g_array_index(pCurrEndPointPolicy->streamInfo,StreamPolicyInfoT,i); + if(currentPolicyStreamInfo.streamID == pStreamInfo->streamID) + { + + //Unduck case + if((i==(pCurrEndPointPolicy->streamInfo->len-1)) && (pCurrEndPointPolicy->streamInfo->len > 1)) + { + //remove the current stream + g_array_remove_index(pCurrEndPointPolicy->streamInfo, i); + + //check the last element(Akways highest priority) + StreamPolicyInfoT HighPriorityStreamInfo = g_array_index(pCurrEndPointPolicy->streamInfo,StreamPolicyInfoT,pCurrEndPointPolicy->streamInfo->len-1); + + //Get Stream Info + StreamInfoT * pInterruptStreamInfo = PolicyGetActiveStream(HighPriorityStreamInfo.streamID); + if (pInterruptStreamInfo == NULL) { + AFB_ERROR("Stream not found, Specified stream not currently active stream_id -> %d",HighPriorityStreamInfo.streamID); + return -1; + } + + int err; + switch(currentPolicyStreamInfo.interruptBehavior) + { + case AHL_INTERRUPTEDBEHAVIOR_CONTINUE: + //unduck and set Volume back to original value + err= PolicySetVolumeRamp(pInterruptStreamInfo->pEndpointInfo, HighPriorityStreamInfo.iVolume); + if(err) + { + AFB_ERROR("Endpoint:%s Set Volume return with errorcode%i", pInterruptStreamInfo->pEndpointInfo->gsDeviceName->str, err); + return -1; + } + break; + case AHL_INTERRUPTEDBEHAVIOR_PAUSE: + pInterruptStreamInfo->streamState = STREAM_STATE_RUNNING; + PolicyPostStateEvent(pInterruptStreamInfo->streamStateEvent,STREAM_EVENT_RESUME); + break; + + case AHL_INTERRUPTEDBEHAVIOR_CANCEL: + AFB_ERROR("StreamID with Cancel InterruptedBehavior can't be unInterrupted"); + return -1; + break; + default: + AFB_ERROR("Unsupported Intterupt Behavior"); + return -1; + break; + } + + } + else + { + //remove the current stream + PolicyRemoveStream(pCurrEndPointPolicy, i); + } + return 0; + } + + } + } + + AFB_ERROR("StreamID does not match any playing stream"); + return -1; +} + +static int PolicyIdleRunningTransition(EndPointPolicyInfoT *pCurrEndPointPolicy, StreamInfoT * pStreamInfo, int AudioRoleIndex, int EndPointKey) +{ + int stream_priority; + int ori_key_pos; + + bool bKeyFound=g_hash_table_lookup_extended(g_AHLCtx.policyCtx.pRolePriority,pStreamInfo->pEndpointInfo->gsAudioRole->str,&ori_key_pos,&stream_priority); + if(bKeyFound==false) + { + AFB_ERROR("Can't find stream priority, request will be rejected"); + return -1; + } + + //stream_priority = GPOINTER_TO_INT(value); + + + InterruptedBehaviorT InterruptBehavior = g_array_index(g_AHLCtx.policyCtx.pInterruptBehavior,InterruptedBehaviorT,AudioRoleIndex); + int err; + if(pCurrEndPointPolicy == NULL) //No stream is playing on this endpoint + { + EndPointPolicyInfoT newEndPointPolicyInfo ; + StreamPolicyInfoT newStreamPolicyInfo; + + //create EndPoint and add playing stream + newEndPointPolicyInfo.endpointKey = EndPointKey; + newEndPointPolicyInfo.endpointID = pStreamInfo->pEndpointInfo->endpointID; + newEndPointPolicyInfo.type = pStreamInfo->pEndpointInfo->type; + newEndPointPolicyInfo.streamInfo = g_array_new(FALSE,TRUE,sizeof(StreamPolicyInfoT)); + + newStreamPolicyInfo.RolePriority = stream_priority; + newStreamPolicyInfo.iVolume = pStreamInfo->pEndpointInfo->iVolume; + newStreamPolicyInfo.streamID = pStreamInfo->streamID; + newStreamPolicyInfo.interruptBehavior = InterruptBehavior; + + g_array_append_val(newEndPointPolicyInfo.streamInfo, newStreamPolicyInfo); + g_array_append_val(g_PolicyCtx.pSinkEndpoints, newEndPointPolicyInfo); + + + /* + int *pVolume = &g_array_index(g_PolicyCtx.pVolInitPerPolicy,int,AudioRoleIndex); + pStreamInfo->pEndpointInfo->iVolume = *pVolume; + + err= PolicySetVolumeRamp(pStreamInfo->pEndpointInfo, pStreamInfo->pEndpointInfo->iVolume); + if(err) + { + AFB_ERROR("Endpoint:%s Set Volume return with errorcode%i",pStreamInfo->pEndpointInfo->gsDeviceName->str, err); + return err; + } */ + } + else + { + //Currently contains playing or duck stream + if(pCurrEndPointPolicy->streamInfo->len > 0) + { + //check the last element + StreamPolicyInfoT HighPriorityStreamInfo = g_array_index(pCurrEndPointPolicy->streamInfo,StreamPolicyInfoT,pCurrEndPointPolicy->streamInfo->len-1); + if((stream_priority) >= HighPriorityStreamInfo.RolePriority) + { + //Get Stream Info + StreamInfoT * pInterruptStreamInfo = PolicyGetActiveStream(HighPriorityStreamInfo.streamID); + if (pInterruptStreamInfo == NULL) { + AFB_ERROR("Stream not found Specified stream not currently active stream_id -> %d",HighPriorityStreamInfo.streamID); + return -1; + } + + switch(InterruptBehavior) + { + case AHL_INTERRUPTEDBEHAVIOR_CONTINUE: + //Save the current Volume and set the docking volume + HighPriorityStreamInfo.iVolume = pInterruptStreamInfo->pEndpointInfo->iVolume; + + int *pVolume = &g_array_index(g_PolicyCtx.pVolDuckPerPolicy,int,AudioRoleIndex); + err= PolicySetVolumeRamp(pInterruptStreamInfo->pEndpointInfo, *pVolume); + if(err) + { + AFB_ERROR("Endpoint:%s Set Volume return with errorcode%i", pInterruptStreamInfo->pEndpointInfo->gsDeviceName->str, err); + return -1; + } + break; + case AHL_INTERRUPTEDBEHAVIOR_PAUSE: + pInterruptStreamInfo->streamState = STREAM_STATE_PAUSED; + PolicyPostStateEvent(pInterruptStreamInfo->streamStateEvent,STREAM_EVENT_PAUSE); + break; + + case AHL_INTERRUPTEDBEHAVIOR_CANCEL: + pInterruptStreamInfo->streamState = STREAM_STATE_IDLE; + PolicyPostStateEvent(pInterruptStreamInfo->streamStateEvent,STREAM_EVENT_STOP); + g_array_remove_index(pCurrEndPointPolicy->streamInfo, pCurrEndPointPolicy->streamInfo->len-1); + + break; + default: + AFB_ERROR("Unsupported Intterupt Behavior"); + return AHL_POLICY_REJECT; + break; + + } + + //Add the playing stream at index 0 + StreamPolicyInfoT newStreamPolicyInfo; + newStreamPolicyInfo.RolePriority = stream_priority; + newStreamPolicyInfo.iVolume = pStreamInfo->pEndpointInfo->iVolume; + newStreamPolicyInfo.streamID = pStreamInfo->streamID; + newStreamPolicyInfo.interruptBehavior = InterruptBehavior; + + //Insert at the end, become highest priority streamID + g_array_append_val(pCurrEndPointPolicy->streamInfo, newStreamPolicyInfo); + + err= PolicySetVolumeRamp(pStreamInfo->pEndpointInfo, pStreamInfo->pEndpointInfo->iVolume); + if(err) + { + AFB_ERROR("Endpoint:%s Set Volume return with errorcode%i", pInterruptStreamInfo->pEndpointInfo->gsDeviceName->str, err); + return err; + } + + } + else + { + //Higher Priority Stream is playing + AFB_NOTICE("Higher Priority Stream is playing"); + return -1; + } + + } + else + { + //Remove endpoint + AFB_ERROR("Active EndPoint is not attached to any active stream"); + return -1; + + } + } + + return 0; +} + +//Policy API +int Policy_OpenStream(StreamInfoT * pStreamInfo) +{ + // 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; + } + + //Implement Policy open stream rules, limit to a certain number of stream open based on policy + int index = PolicyFindRoleIndex(pStreamInfo->pEndpointInfo->gsAudioRole->str); + int *pNumberOpenStream = &g_array_index(g_PolicyCtx.pStreamOpenPerPolicy,int,index); + int MaxNumberOpenStream = g_array_index(g_PolicyCtx.pMaxStreamOpenPerPolicy,int,index); + + *pNumberOpenStream +=1; + if((*pNumberOpenStream) > MaxNumberOpenStream ) + { + return AHL_POLICY_REJECT; + } + + //Get actual Volume + int err=PolicyGetVolume(pStreamInfo->pEndpointInfo); + if(err != 0) + { + AFB_WARNING("Can't get volume of Endpoint %s",pStreamInfo->pEndpointInfo->gsDeviceName->str); + } return AHL_POLICY_ACCEPT; } -int Policy_CloseStream(streamID_t streamID) +int Policy_CloseStream(StreamInfoT * pStreamInfo) { - // For completeness, unlikely to have any policy rules here + //Decrement the number of openstream + int index = PolicyFindRoleIndex(pStreamInfo->pEndpointInfo->gsAudioRole->str); + int *pNumberOpenStream = &g_array_index(g_PolicyCtx.pStreamOpenPerPolicy,int,index); + + *pNumberOpenStream -= 1; return AHL_POLICY_ACCEPT; } -int Policy_SetStreamState(streamID_t streamID, StreamStateT streamState ) +int Policy_SetStreamState(StreamInfoT * pStreamInfo, int AudioRoleIndex, StreamStateT streamState) { + //DONE // If higher priority audio role stream requires audio ducking (and un-ducking) of other streams (e.g. navigation ducks entertainment) - // TODO: Could potentially provide a fairly generic system using interupt behavior information and audio role priority (implemented and can be customized here) + // Could potentially provide a fairly generic system using interupt behavior information and audio role priority (implemented and can be customized here) // Specific exception can also be - // Source exclusion. E.g. When a source (e.g tuner) with same audio role as already active stream (e.g. media player) with same endpoint target, // the former source is stopped (i.e. raise streamstate stop event) - - // If source on communication role is active (e.g. handsfree call), activating entertainment sources is prohibited - - // If handsfree or speech recognition (communication role) is started during entertainment playback, mute all entertainment streams (any endpoints except RSE) - + // If source on communication role is active (e.g. handsfree call), activating entertainment sources is prohibited // Startup or Shutdown audio stream mute entertainment (unmut when stream no longer active) + //TODO // Optional: Mute endpoint before activation, unmute afterwards (after a delay?) to avoid noises + int err; - + //Change of state + if(pStreamInfo->streamState != streamState) + { + //seach corresponding endpoint and gather information on it + int key = PolicyGenEndPointKey(pStreamInfo->pEndpointInfo); + EndPointPolicyInfoT *pCurrEndPointPolicy = PolicySearchEndPoint(pStreamInfo->pEndpointInfo->type , key); + + switch(pStreamInfo->streamState) + { + case STREAM_STATE_IDLE: + switch(streamState) + { + case STREAM_STATE_RUNNING: + err = PolicyIdleRunningTransition(pCurrEndPointPolicy, pStreamInfo, AudioRoleIndex, key); + if(err) + { + return AHL_POLICY_REJECT; + } + pStreamInfo->streamState = STREAM_STATE_RUNNING; + PolicyPostStateEvent(pStreamInfo->streamStateEvent,STREAM_EVENT_START); + break; + case STREAM_STATE_PAUSED: + err = PolicyIdleRunningTransition(pCurrEndPointPolicy, pStreamInfo, AudioRoleIndex, key); + if(err) + { + return AHL_POLICY_REJECT; + } + pStreamInfo->streamState = STREAM_STATE_PAUSED; + PolicyPostStateEvent(pStreamInfo->streamStateEvent,STREAM_EVENT_PAUSE); + break; + default: + return AHL_POLICY_REJECT; + break; + } + break; + case STREAM_STATE_RUNNING: + switch(streamState) + { + case STREAM_STATE_IDLE: + err = PolicyRunningIdleTransition(pCurrEndPointPolicy, pStreamInfo); + if(err) + { + return AHL_POLICY_REJECT; + } + pStreamInfo->streamState = STREAM_STATE_IDLE; + PolicyPostStateEvent(pStreamInfo->streamStateEvent,STREAM_EVENT_STOP); + break; + case STREAM_STATE_PAUSED: + pStreamInfo->streamState = STREAM_STATE_PAUSED; + PolicyPostStateEvent(pStreamInfo->streamStateEvent,STREAM_EVENT_PAUSE); + break; + default: + return AHL_POLICY_REJECT; + break; + } + break; + case STREAM_STATE_PAUSED: + switch(streamState) + { + case STREAM_STATE_IDLE: + err = PolicyRunningIdleTransition(pCurrEndPointPolicy, pStreamInfo); + if(err) + { + return AHL_POLICY_REJECT; + } + pStreamInfo->streamState = STREAM_STATE_IDLE; + PolicyPostStateEvent(pStreamInfo->streamStateEvent,STREAM_EVENT_STOP); + break; + case STREAM_STATE_RUNNING: + pStreamInfo->streamState = STREAM_STATE_RUNNING; + PolicyPostStateEvent(pStreamInfo->streamStateEvent,STREAM_EVENT_RESUME); + break; + default: + return AHL_POLICY_REJECT; + break; + } + break; + default: + return AHL_POLICY_REJECT; + break; + } + } return AHL_POLICY_ACCEPT; } -int Policy_SetStreamMute(streamID_t streamID, StreamMuteT streamMute) +int Policy_SetStreamMute(StreamInfoT * pStreamInfo, StreamMuteT streamMute) { + int err; + + if(streamMute == STREAM_MUTED) + { + err= PolicySetVolumeMute(pStreamInfo->pEndpointInfo, 0); + if(err) + { + AFB_ERROR("Endpoint:%s Set Volume return with errorcode%i",pStreamInfo->pEndpointInfo->gsDeviceName->str, err); + return AHL_POLICY_REJECT; + } + PolicyPostStateEvent(pStreamInfo->streamStateEvent,STREAM_EVENT_MUTED); + } + else + { + err= PolicySetVolumeMute(pStreamInfo->pEndpointInfo, pStreamInfo->pEndpointInfo->iVolume); + if(err) + { + AFB_ERROR("Endpoint:%s Set Volume return with errorcode%i",pStreamInfo->pEndpointInfo->gsDeviceName->str, err); + return AHL_POLICY_REJECT; + } + PolicyPostStateEvent(pStreamInfo->streamStateEvent,STREAM_EVENT_UNMUTED); + + + } + + pStreamInfo->streamMute = streamMute; + return AHL_POLICY_ACCEPT; } -int Policy_SetVolume(EndpointTypeT endpointType, endpointID_t endpointID, char *volumeStr) +int Policy_SetVolume(EndpointInfoT * f_pEndpointInfo, char *volumeStr) { + + // TODO: Parse volume string to support increment/absolute/percent notation (or delegate to action / policy layer to interpret) + int vol = atoi(volumeStr); + + //Set the volume + int err = PolicySetVolumeRamp(f_pEndpointInfo, vol); + if (err) + { + AFB_ERROR("Set Volume return with errorcode%i", err); + return AHL_POLICY_REJECT; + } + return AHL_POLICY_ACCEPT; } -int Policy_SetProperty(EndpointTypeT endpointType, endpointID_t endpointID, char *propertyName, char *propValueStr) +int Policy_SetProperty(EndpointInfoT * f_pEndpointInfo, char *propertyName, json_object *propValue) { + + gpointer *key_value=NULL; + key_value=g_hash_table_lookup(f_pEndpointInfo->pPropTable,propertyName); + if(key_value==NULL) + { + AFB_ERROR("Can't find property %s, request will be rejected", propertyName); + return AHL_POLICY_REJECT; + } + + // Object type detection for property value (string = state, numeric = property) + json_type jType = json_object_get_type(propValue); + switch (jType) { + case json_type_double: + Add_Endpoint_Property_Double(f_pEndpointInfo,propertyName,json_object_get_double(propValue)); + case json_type_int: + Add_Endpoint_Property_Int(f_pEndpointInfo,propertyName,json_object_get_int(propValue)); + case json_type_string: + Add_Endpoint_Property_String(f_pEndpointInfo,propertyName,json_object_get_string(propValue)); + break; + default: + AFB_ERROR("Invalid property argument Property value not a valid json object query=%s", json_object_get_string(propValue )); + return AHL_POLICY_REJECT; + } + return AHL_POLICY_ACCEPT; } @@ -112,16 +945,16 @@ int Policy_AudioDeviceChange() int Policy_Endpoint_Property_Init(EndpointInfoT * io_EndpointInfo) { // Populate list of supported properties for specified endpoint (use helper functions) - // Setup initial values for all properties + // Setup initial values for all properties GHashTabl // TODO: Switch on different known endpoints to populate different properties // Test example - Add_Endpoint_Property_Numeric(io_EndpointInfo,AHL_PROPERTY_EQ_LOW,3); - Add_Endpoint_Property_Numeric(io_EndpointInfo,AHL_PROPERTY_EQ_MID,0); - Add_Endpoint_Property_Numeric(io_EndpointInfo,AHL_PROPERTY_EQ_HIGH,6); - Add_Endpoint_Property_Numeric(io_EndpointInfo,AHL_PROPERTY_BALANCE,0); - Add_Endpoint_Property_Numeric(io_EndpointInfo,AHL_PROPERTY_FADE,30); + Add_Endpoint_Property_Int(io_EndpointInfo,AHL_PROPERTY_EQ_LOW,3); + Add_Endpoint_Property_Int(io_EndpointInfo,AHL_PROPERTY_EQ_MID,0); + Add_Endpoint_Property_Int(io_EndpointInfo,AHL_PROPERTY_EQ_HIGH,6); + Add_Endpoint_Property_Int(io_EndpointInfo,AHL_PROPERTY_BALANCE,0); + Add_Endpoint_Property_Int(io_EndpointInfo,AHL_PROPERTY_FADE,30); Add_Endpoint_Property_String(io_EndpointInfo,"preset_name","flat"); return 0; // No errors @@ -129,11 +962,240 @@ int Policy_Endpoint_Property_Init(EndpointInfoT * io_EndpointInfo) int Policy_Init() { - // Other policy specific initialization + // Initialize Ressources + g_PolicyCtx.pSourceEndpoints =g_array_new(FALSE,TRUE,sizeof(EndPointPolicyInfoT)); + g_PolicyCtx.pSinkEndpoints = g_array_new(FALSE,TRUE,sizeof(EndPointPolicyInfoT)); + g_PolicyCtx.pStreamOpenPerPolicy = g_array_sized_new(FALSE, TRUE, sizeof(int), g_AHLCtx.policyCtx.iNumberRoles); + g_PolicyCtx.pMaxStreamOpenPerPolicy = g_array_sized_new(FALSE, TRUE, sizeof(int), g_AHLCtx.policyCtx.iNumberRoles); + g_PolicyCtx.pVolDuckPerPolicy = g_array_sized_new(FALSE, TRUE, sizeof(int), g_AHLCtx.policyCtx.iNumberRoles); + + int initial_value=0; + int max_value=0; + int vol_init_value=0; + int vol_duck_value=0; + GArray * pRoleDeviceArray = NULL; + //Init the number of open stream + for(int i=0; i<g_AHLCtx.policyCtx.iNumberRoles; i++) + { + g_array_append_val(g_PolicyCtx.pStreamOpenPerPolicy, initial_value); + + GString gs = g_array_index( g_AHLCtx.policyCtx.pAudioRoles, GString, i ); + max_value = MAX_ACTIVE_STREAM_POLICY; + if ( strcasecmp(gs.str,AHL_ROLE_WARNING) == 0 ) + { + max_value = 4; + vol_init_value=80; + vol_duck_value = 0; + } + else if ( strcasecmp(gs.str,AHL_ROLE_GUIDANCE) == 0 ) + { + max_value = 10; + vol_init_value=70; + vol_duck_value = 40; + } + else if ( strcasecmp(gs.str,AHL_ROLE_NOTIFICATION) == 0 ) + { + max_value = 4; + vol_init_value=80; + vol_duck_value = 0; + } + else if ( strcasecmp(gs.str,AHL_ROLE_COMMUNICATION) == 0 ) + { + max_value = 10; + vol_init_value=70; + vol_duck_value = 30; + } + else if ( strcasecmp(gs.str,AHL_ROLE_ENTERTAINMENT) == 0 ) + { + max_value = MAX_ACTIVE_STREAM_POLICY; + vol_init_value=60; + vol_duck_value = 40; + } + else if ( strcasecmp(gs.str,AHL_ROLE_SYSTEM) == 0 ) + { + max_value = 2; + vol_init_value=100; + vol_duck_value = 0; + } + else if ( strcasecmp(gs.str,AHL_ROLE_STARTUP) == 0 ) + { + max_value = 1; + vol_init_value=90; + vol_duck_value = 0; + } + else if ( strcasecmp(gs.str,AHL_ROLE_SHUTDOWN) == 0 ) + { + max_value = 1; + vol_init_value=90; + vol_duck_value = 0; + } + + g_array_append_val(g_PolicyCtx.pMaxStreamOpenPerPolicy, max_value); + g_array_append_val(g_PolicyCtx.pVolDuckPerPolicy, vol_duck_value); + + //Get actual volume value + pRoleDeviceArray = g_ptr_array_index( g_AHLCtx.policyCtx.pSinkEndpoints, i ); + if (pRoleDeviceArray != NULL) + { + for ( int j = 0 ; j < pRoleDeviceArray->len; j++) + { + + //Init all Volume + EndpointInfoT * pEndpointInfo = &g_array_index(pRoleDeviceArray,EndpointInfoT,j); + int err= PolicySetVolumeRamp(pEndpointInfo, vol_init_value); + if(err) + { + AFB_WARNING("Endpoint:%s Set Volume return with errorcode%i",pEndpointInfo->gsDeviceName->str, err); + //try to read volume instead + err=PolicyGetVolume(pEndpointInfo); + if(err != 0) + { + AFB_WARNING("Can't get volume of Endpoint %s",pEndpointInfo->gsDeviceName->str); + } + } + + /* + EndpointInfoT * pEndpointInfo = &g_array_index(pRoleDeviceArray,EndpointInfoT,j); + int err=PolicyGetVolume(pEndpointInfo); + if(err != 0) + { + AFB_WARNING("Can't get volume of Endpoint %s",pEndpointInfo->gsDeviceName->str); + } +*/ + } + } + } + + + //Set System Normal for now, this should be set by an event + //TODO: Receive event from low level + g_PolicyCtx.systemState = SYSTEM_NORMAL; + + //register audio backend events + json_object *queryurl, *responseJ, *devidJ, *eventsJ; + + 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 -1; + } + + return 0; // No errors } - + void Policy_Term() { - // Policy termination + + //Free Ressources + 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; + + g_array_free(g_PolicyCtx.pStreamOpenPerPolicy,TRUE); + g_PolicyCtx.pStreamOpenPerPolicy = NULL; + g_array_free(g_PolicyCtx.pMaxStreamOpenPerPolicy,TRUE); + g_PolicyCtx.pMaxStreamOpenPerPolicy = NULL; + g_array_free(g_PolicyCtx.pVolDuckPerPolicy, TRUE); + g_PolicyCtx.pVolDuckPerPolicy = NULL; } + +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); + + + //Get Stream Info + StreamInfoT * pActiveStreamInfo = PolicyGetActiveStream(pCurStream->streamID); + if (pActiveStreamInfo == NULL) { + AFB_WARNING("Stream not found, Specified stream not currently active stream_id -> %d",pCurStream->streamID); + return; + } + + if(strcasecmp(pActiveStreamInfo->pEndpointInfo->gsAudioRole->str,AHL_ROLE_ENTERTAINMENT)==0) + { + + if(speed > 30 && speed < 100) + { + int volume =speed; + PolicySetVolumeRamp(pActiveStreamInfo->pEndpointInfo,volume); + } + + + } + + } + + } +} + + +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); + } + + } + + + + +}
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