Removing baseband MessageHandlerMap.

It's a bit heavy (362 bytes smaller with switch/case implementation), hard to access to add/remove handlers, doesn't bubble events like I'd like. (I'm going to bubble events to the baseband processor shortly.)

firmware/baseband/main.cpp

@@ -121,24 +121,7 @@ static void shutdown() {
 
 class EventDispatcher {
 public:
-	MessageHandlerMap& message_handlers() {
-		return message_map;
-	}
-
 	void run() {
-		message_map.register_handler(Message::ID::BasebandConfiguration,
-			[this](const Message* const p) {
-				auto message = reinterpret_cast<const BasebandConfigurationMessage*>(p);
-				this->baseband_thread.set_configuration(message->configuration);
-			}
-		);
-
-		message_map.register_handler(Message::ID::Shutdown,
-			[this](const Message* const) {
-				this->request_stop();
-			}
-		);
-
 		events_initialize(chThdSelf());
 		m0apptxevent_interrupt_enable();
 
@@ -159,7 +142,6 @@ public:
 	}
 
 private:
-	MessageHandlerMap message_map;
 	BasebandThread baseband_thread;
 	RSSIThread rssi_thread;
 
@@ -182,10 +164,38 @@ private:
 	void handle_baseband_queue() {
 		std::array<uint8_t, Message::MAX_SIZE> message_buffer;
 		while(Message* const message = shared_memory.baseband_queue.pop(message_buffer)) {
-			message_map.send(message);
+			on_message(message);
 		}
 	}
 
+	void on_message(const Message* const message) {
+		switch(message->id) {
+		case Message::ID::BasebandConfiguration:
+			on_message_baseband_configuration(*reinterpret_cast<const BasebandConfigurationMessage*>(message));
+			break;
+
+		case Message::ID::Shutdown:
+			on_message_shutdown(*reinterpret_cast<const ShutdownMessage*>(message));
+			break;
+
+		default:
+			on_message_default(message);
+			break;
+		}
+	}
+
+	void on_message_baseband_configuration(const BasebandConfigurationMessage& message) {
+		baseband_thread.set_configuration(message.configuration);
+	}
+
+	void on_message_shutdown(const ShutdownMessage&) {
+		request_stop();
+	}
+
+	void on_message_default(const Message* const) {
+		// TODO: Pass to active baseband processor.
+	}
+
 	void handle_spectrum() {
 		// TODO: Send this via another message?!
 		baseband_thread.on_update_spectrum();