CCECAudioSystem::CCECAudioSystem(CCECProcessor *processor, cec_logical_address address, uint16_t iPhysicalAddress /* = CEC_INVALID_PHYSICAL_ADDRESS */) :
CCECBusDevice(processor, address, iPhysicalAddress),
m_systemAudioStatus(CEC_SYSTEM_AUDIO_STATUS_ON),
- m_audioStatus(CEC_AUDIO_MUTE_STATUS_MASK)
+ m_audioStatus(CEC_AUDIO_VOLUME_STATUS_UNKNOWN)
{
m_type = CEC_DEVICE_TYPE_AUDIO_SYSTEM;
}
TransmitKeypress(source, CEC_USER_CONTROL_CODE_MUTE);
TransmitKeyRelease(source);
+ return GetAudioStatus(source, true);
+}
+
+bool CCECAudioSystem::RequestAudioStatus(const cec_logical_address initiator, bool bWaitForResponse /* = true */)
+{
+ bool bReturn(false);
+
+ if (!IsHandledByLibCEC() &&
+ !IsUnsupportedFeature(CEC_OPCODE_GIVE_AUDIO_STATUS))
+ {
+ MarkBusy();
+ LIB_CEC->AddLog(CEC_LOG_DEBUG, "<< requesting audio status of '%s' (%X)", GetLogicalAddressName(), m_iLogicalAddress);
+ bReturn = m_handler->TransmitRequestAudioStatus(initiator, m_iLogicalAddress, bWaitForResponse);
+ MarkReady();
+ }
+ return bReturn;
+}
+
+uint8_t CCECAudioSystem::GetAudioStatus(const cec_logical_address initiator, bool bUpdate /* = false */)
+{
+ bool bIsPresent(GetStatus() == CEC_DEVICE_STATUS_PRESENT);
+ bool bRequestUpdate(false);
+ {
+ CLockObject lock(m_mutex);
+ bRequestUpdate = bIsPresent &&
+ (bUpdate || m_audioStatus == CEC_AUDIO_VOLUME_STATUS_UNKNOWN);
+ }
+
+ if (bRequestUpdate)
+ {
+ CheckVendorIdRequested(initiator);
+ RequestAudioStatus(initiator);
+ }
+
CLockObject lock(m_mutex);
return m_audioStatus;
}