I2C: Network support

include/icsneo/communication/message/i2cmessage.h

@@ -0,0 +1,48 @@
+#ifndef __I2CMESSAGE_H_
+#define __I2CMESSAGE_H_
+
+#ifdef __cplusplus
+
+#include "icsneo/communication/message/message.h"
+#include <vector>
+
+namespace icsneo {
+
+class I2CMessage : public Frame {
+public:
+	enum class DeviceMode : uint8_t {
+		Target = 0,
+		Controller = 1
+	};
+
+	enum class Direction : uint8_t {
+		Write = 0,
+		Read = 1
+	};
+
+	bool isExtendedID = false;
+	bool isTXMsg = false;
+	bool txError = false;
+	bool txLostArb = false;
+	bool txAborted = false;
+	bool txNack = false;
+	bool txTimeout = false;
+	uint16_t stats = static_cast<uint16_t>(0x0000u);
+	uint16_t address;
+	Direction direction;
+	DeviceMode deviceMode;
+
+	//Must contain the target register address to read or write
+	std::vector<uint8_t> controlBytes;
+
+	//The device expects a dataBytes payload even if you're reading
+	//In the case of a read these bytes aren't interesting, but they have to be there
+	//Add bytes to write, or the same number of junk bytes you expect the device send back
+	std::vector<uint8_t> dataBytes;
+};
+
+}
+
+#endif // __cplusplus
+
+#endif

include/icsneo/communication/packet/i2cpacket.h

@@ -0,0 +1,61 @@
+#ifndef __I2CPACKET_H__
+#define __I2CPACKET_H__
+
+#ifdef __cplusplus
+
+#include "icsneo/communication/message/i2cmessage.h"
+#include "icsneo/api/eventmanager.h"
+#include "icsneo/communication/packetizer.h"
+#include "icsneo/communication/network.h"
+#include <cstdint>
+#include <memory>
+
+namespace icsneo {
+
+static constexpr size_t I2CMaxLength = 1024u;
+
+#pragma pack(push, 2)
+
+struct I2CHeader {
+	struct {
+		// C1xI2C
+		uint16_t ID : 10;// i2c address, 7-bit or 10-bit
+		uint16_t EID : 1;// using extended addressing, i.e. 10-bit
+		uint16_t CT : 1;// Controller/Target
+		uint16_t DIR : 1;// read/write
+		uint16_t RESERVED_0 : 3;
+
+		// C2xI2C
+		uint16_t TXMsg: 1;
+		uint16_t CBLen: 11;
+		uint16_t RESERVED_1: 4;
+
+		// C3xI2C
+		uint16_t TXTimeout : 1;
+		uint16_t TXNack : 1;
+		uint16_t TXAborted : 1;
+		uint16_t TXLostArb : 1;
+		uint16_t TXError : 1;
+		uint16_t RESERVED_2: 11;
+	} CoreMiniBitsI2C;
+
+	uint8_t coreMiniMessageData[8];
+	uint16_t stats;
+
+	uint64_t timestamp;
+
+	uint16_t networkID;
+	uint16_t length;
+};
+
+#pragma pack(pop)
+
+struct HardwareI2CPacket {
+	static std::shared_ptr<Message> DecodeToMessage(const std::vector<uint8_t>& bytestream);
+	static bool EncodeFromMessage(const I2CMessage& message, std::vector<uint8_t>& bytestream, const device_eventhandler_t& report);
+};
+}
+
+#endif //_cplusplus
+
+#endif