#ifndef I2C_COMMUNICATION
#define I2C_COMMUNICATION

#include "Std_Types.h"

//defines
#define WRITE 0x00                  //SMBus Write command
#define READ 0x01                   //SMBus Read command

#define RTC_ADD 0xE0                //Slave Address(DS1307)

//SMBus states----------------------------------------------
//MT = Master Transmitter
//MR = Master Reciever

#define BUS_ERROR 0x00              //(all modes), illegal Start or Stop condition
#define IDLE 0xF8                   //SMBus does nothing

#define START 0x08                  //(MT & MR), Start Condition transmitted
#define RSTART 0x10                 //(MT & MR), Repeated Start condition transmitted.
#define T_ADDACK 0x18               //(MT), Slave Address and Write transmitted, ACK recieved
#define T_ADDNACK 0x20              //(MT), Slave Address and Write transmitted, NACK recieved
#define T_DACK 0x28                 //(MT), Data-byte sent, ACK recieved
#define T_DNACK 0x30                //(MT), Data-byte sent, NACK recieved

#define R_ADDACK 0x40               //(MR), Slave Address and Read transmitted, ACK recieved
#define R_ADDNACK 0x48              //(MR), Slave Address and Read transmitted, NACK recieved
#define R_DACK 0x50                 //(MR), Data-byte recieved, ACK transmitted
#define R_DNACK 0x58                //(MR), Data-byte recieved, NACK transmitted

//global variables------------------------------------------
uint8 SendData(uint8 ucDeviceAddress, uint8 ucRegisterAddress, uint8 ucNumberOfBytes, uint8 ucStartByte, uint8 ucValuesT[8]);
uint8 ReadData(uint8 ucDeviceAddress, uint8 ucNumberOfBytes, uint8 ucStartByte, uint8 ucValuesR[8]);

#endif