/**
 ***************************************************************************
 * \file    i2c.h
 ***************************************************************************
 * \brief  Header File for i2c.c
 *
 * \version	1.0
 * \date	14.05.2010
 * \author	S. Andenmatten BFH-TI
 ***************************************************************************
 */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef I2C_H
#define I2C_H

#define FAILED	1
#define SUCCESSFUL	0


#define I2C1_ADDRESS_EEPROM1_BLOCK0 	0xA0
#define I2C1_ADDRESS_EEPROM1_BLOCK1 	0xA8
#define I2C1_ADDRESS_EEPROM2_BLOCK0 	0xA2
#define I2C1_ADDRESS_EEPROM2_BLOCK1 	0xAA
#define I2C1_ADDRESS_EEPROM3_BLOCK0 	0xA4
#define I2C1_ADDRESS_EEPROM3_BLOCK1 	0xAC
#define I2C1_ADDRESS_EEPROM4_BLOCK0 	0xA6
#define I2C1_ADDRESS_EEPROM4_BLOCK1 	0xAE

#define I2C1_ADDRESS_RTC 							0xD0


//define locations off data in the eeprom

/*
Address of chip 1: 000000 - 131071
Address of chip 2: 131072 - 262143
Address of chip 3: 262144 - 393215
Address of chip 4: 393216 - 524287
*/

#define EEPROM_OFFSET_PROG_DATA 			0
#define EEPROM_OFFSET_AP_DATA 				128000

#define EEPROM_SOMMERTIME_SET					131200 //(1   Byte)   Byte, which saves the state of summertime
#define EEPROM_WINTERTIME_SET					131201 //(1   Byte)   Byte, which saves the state of wintertime
#define EEPROM_CENTURY								131202 //(1   Byte)   There is the century saved
#define EEPROM_DATALOG_POINTER				131203 //(16  Bytes)  This is the pointer, on wich address the next logdata have to be written
#define EEPROM_ERROR_LOG_POINTER			131219 //(16  Bytes)	This is the pointer on which the next error log data have to be written
#define EEPROM_EXPIRY_COUNTER					131235 //(16  Bytes)  This bytes saves the counter, which runs parallel to the normal watch in s
#define EEPROM_OPERATION_HOURS				131251 //(16  Bytes)  Saves the operating hours
#define EEPROM_ABSOLUTE_TIME          131267 //(16  Bytes)  When the power is switched off, it saves the actual seconds of the year, so that the next power on, it can calculate the differnence


#define EEPROM_MANUFACTURER_PW				131283 //(4   Bytes)  Password of manufacturer
#define EEPROM_PUK										131287 //(4   Bytes)  Personal unblocking key
#define EEPROM_EXPIRY_PW							131291 //(4   Bytes)  password which has to be entered, when the date of expiry is reached
#define EEPROM_SUPERVISOR_PW					131295 //(4   Bytes)  password for supervisor
//memory for user passwords
#define EEPROM_USER_PW_BEGIN					131299 //(400 Bytes)  Start address user passwords -> 100 users
#define EEPROM_USER_PW_END						131699 //							End address of memory of user passwords

#define EEPROM_INIT_BYTES							131699 //(4   Bytes)  Bytes to control, whether the memory is already initialized
#define EEPROM_EXPIRY_ACTIV						131703 //(1   Byte)   When this value is 1, then the expiry date is activ. When 0, then it is not activ.
#define EEPROM_MODBUS_ADDRESS					131704 //(1   Byte)		On this eeprom address is the modbus slave address saved
#define EEPROM_SERIAL_NUMBER          131705 //(4   Bytes)  This is the personal serial number which the manufacturer can set 

//memory for the error log memory
#define EEPROM_ERROR_LOG_BEGIN				131709 //(160 Bytes)  20* 8 Bytes. These part of the memory is to save 20 error logs. In the log data memory this messages are saved too.
#define EEPROM_ERROR_LOG_END					131869 // End address of the memory part of the error log
//memory for the datalogger
#define EEPROM_DATALOG_BEGIN					131869 // As much bytes as are available to address EEPROM_DATALOG_END
#define EEPROM_DATALOG_END						524287 // End address of memory




#define LINES_MAX											500


__packed struct EEPROM_PARAMETERS
{
	char data_value;
	double data_value_2;

};




// *****  Extern Declarations **************************************************
extern struct EEPROM_PARAMETERS eeprom_param_default;
extern struct EEPROM_PARAMETERS eeprom_param;



//  function prototype 
void init_i2c(void);
unsigned char eeprom_write_bytes(int AddressMEM,int NumByte,unsigned char* pBuffer);
unsigned char eeprom_read_bytes(int AddressMEM,int NumByte,u8* pBuffer);
unsigned char rtc_read_time(int AddressI2C,int AddressMEM,int NumByte,u8* pBuffer);
unsigned char rtc_write_time(int AddressI2C,int AddressMEM,int NumByte,u8* pBuffer);
unsigned char i2c_wait_until_ready(char I2C_EEAddress);     
void log_date(void);
void log_login(unsigned char user);
void log_prog_start(unsigned char station, unsigned char prog_Nr, unsigned int ref_Nr);
void log_prog_stop(unsigned char station, unsigned char prog_Nr);
void log_finished_step(unsigned char station, unsigned char prog_Nr, unsigned char step_Nr,int step_time, unsigned char av_power, unsigned char av_temperature, int nom_freq);
void log_error_msg(unsigned char error_ID, unsigned char generator_ID);
void write_log_data_EEPROM(void);
void clear_log_data_memory(void);
void clear_passwords(void);
void save_RAM_variables(void);


#endif /*I2C_H*/
 
//*****************************************************************************