ValueCAN 4-2EL: Add communication over Ethernet

The device can communicate with the PC over its Ethernet if the
enablePcEthernetComm setting is set within the structure.

This stops the Ethernet port from being used for vehicle data.

include/icsneo/device/tree/valuecan4/valuecan4-2elusb.h

@@ -0,0 +1,55 @@
+#ifndef __VALUECAN4_2EL_USB_H_
+#define __VALUECAN4_2EL_USB_H_
+
+#ifdef __cplusplus
+
+#include "icsneo/device/tree/valuecan4/valuecan4-2el.h"
+#include "icsneo/platform/stm32.h"
+#include <string>
+
+namespace icsneo {
+
+class ValueCAN4_2EL_USB : public ValueCAN4_2EL {
+public:
+	static std::vector<std::shared_ptr<Device>> Find() {
+		std::vector<std::shared_ptr<Device>> found;
+
+		for(auto neodevice : STM32::FindByProduct(USB_PRODUCT_ID)) {
+			if(std::string(neodevice.serial).substr(0, 2) == SERIAL_START)
+				found.emplace_back(new ValueCAN4_2EL_USB(neodevice));
+		}
+
+		return found;
+	}
+
+	static const std::vector<Network>& GetSupportedNetworks() {
+		static std::vector<Network> supportedNetworks = {
+			Network::NetID::HSCAN,
+			Network::NetID::HSCAN2,
+
+			Network::NetID::Ethernet
+		};
+		return supportedNetworks;
+	}
+
+protected:
+	virtual void setupSupportedRXNetworks(std::vector<Network>& rxNetworks) override {
+		for(auto& netid : GetSupportedNetworks())
+			rxNetworks.emplace_back(netid);
+	}
+
+	// The supported TX networks are the same as the supported RX networks for this device
+	virtual void setupSupportedTXNetworks(std::vector<Network>& txNetworks) override { setupSupportedRXNetworks(txNetworks); }
+
+private:
+	ValueCAN4_2EL_USB(neodevice_t neodevice) : ValueCAN4_2EL(neodevice) {
+		initialize<STM32, ValueCAN4_2ELSettings>();
+		productId = USB_PRODUCT_ID;
+	}
+};
+
+}
+
+#endif // __cplusplus
+
+#endif