i2c: resolve #4

I2C/inc/I2C.h

@@ -0,0 +1,33 @@
+/*
+ * I2C.h
+ *
+ *  Created on: 21.2.2016
+ *      Author: krl
+ */
+
+#ifndef I2C_H_
+#define I2C_H_
+
+#include "chip.h"
+
+struct I2C_config {
+	unsigned int device_number;
+	unsigned int speed;
+	unsigned int clock_divider;
+	unsigned int i2c_mode;
+	I2C_config(): device_number(0), speed(100000), clock_divider(40), i2c_mode(IOCON_SFI2C_EN) {};
+};
+
+class I2C {
+public:
+	I2C(const I2C_config &cfg);
+	virtual ~I2C();
+	bool transaction(uint8_t devAddr, uint8_t *txBuffPtr, uint16_t txSize, uint8_t *rxBuffPtr, uint16_t rxSize);
+	bool write(uint8_t devAddr, uint8_t *txBuffPtr, uint16_t txSize);
+	bool read(uint8_t devAddr, uint8_t *rxBuffPtr, uint16_t rxSize);
+private:
+	LPC_I2C_T *device;
+	static uint32_t I2CM_XferBlocking(LPC_I2C_T *pI2C, I2CM_XFER_T *xfer);
+};
+
+#endif /* I2C_H_ */