+
+bool CAdapterCommunication::IsOpen(void) const
+{
+ return !IsStopped() && m_port->IsOpen();
+}
+
+void CAdapterCommunication::FormatAdapterMessage(const cec_command &command, cec_adapter_message &packet)
+{
+ packet.clear();
+
+ //set ack polarity to high when transmitting to the broadcast address
+ //set ack polarity low when transmitting to any other address
+ packet.push_back(MSGSTART);
+ PushEscaped(packet, MSGCODE_TRANSMIT_ACK_POLARITY);
+ if (command.destination == CECDEVICE_BROADCAST)
+ PushEscaped(packet, CEC_TRUE);
+ else
+ PushEscaped(packet, CEC_FALSE);
+ packet.push_back(MSGEND);
+
+ // add source and destination
+ packet.push_back(MSGSTART);
+ PushEscaped(packet, MSGCODE_TRANSMIT);
+ packet.push_back(((uint8_t)command.initiator << 4) + (uint8_t)command.destination);
+ packet.push_back(MSGEND);
+
+ // add opcode
+ packet.push_back(MSGSTART);
+ PushEscaped(packet, command.parameters.empty() ? (uint8_t)MSGCODE_TRANSMIT_EOM : (uint8_t)MSGCODE_TRANSMIT);
+ packet.push_back((uint8_t) command.opcode);
+ packet.push_back(MSGEND);
+
+ // add parameters
+ for (int8_t iPtr = 0; iPtr < command.parameters.size; iPtr++)
+ {
+ packet.push_back(MSGSTART);
+
+ if (iPtr == command.parameters.size - 1)
+ PushEscaped(packet, MSGCODE_TRANSMIT_EOM);
+ else
+ PushEscaped(packet, MSGCODE_TRANSMIT);
+
+ PushEscaped(packet, command.parameters[iPtr]);
+
+ packet.push_back(MSGEND);
+ }
+}
+