#ifndef _LCD_TWI_H_
#define _LCD_TWI_H_

#ifndef F_CPU
	#error "F_CPU not defined!"
#endif

#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>

#define LCD_RS			0x01
#define LCD_RW			0x02
#define LCD_E			0x04
#define LCD_LED			0x08

#define LCD_CLR			(1 << 0x00)
#define	LCD_RET			(1 << 0x01)
#define LCD_DIR			(1 << 0x02)
	#define LCD_DIR_S		(1 << 0x00)
	#define LCD_DIR_ID		(1 << 0x01)

#define LCD_ONOFF		(1 << 0x03)
	#define LCD_ONOFF_B		(1 << 0x00)
	#define LCD_ONOFF_C		(1 << 0x01)
	#define LCD_ONOFF_D		(1 << 0x02)

#define LCD_SHIFT		(1 << 0x04)
	#define LCD_SHIFT_RL	(1 << 0x02)
	#define LCD_SHIFT_SC	(1 << 0x03)
	
#define LCD_MODEPWR		((1 << 0x04) | (3 << 0x00))
	#define LCD_MODEPWR_PWR	(1 << 0x02)
	#define LCD_MODEPWR_GC	(1 << 0x03)


#define LCD_WIDTH		(1 << 0x05)
	#define LCD_WIDTH_FT0	(1 << 0x00)
	#define LCD_WIDTH_FT1	(1 << 0x01)
	#define LCD_WIDTH_F		(1 << 0x02)
	#define LCD_WIDTH_N		(1 << 0x03)
	#define LCD_WIDTH_DL	(1 << 0x04)

#define LCD_CGRAM		(1 << 0x06)
#define LCD_DDRAM		(1 << 0x07)

#define LCDI2CADDR		0x4E

enum { SYM_NULL, SYM_DEGREE, SYM_TCOUPLE, SYM_DIODE, SYM_RES, SYM_MOSFET, SYM_OPEN, SYM_SHORT };

void I2C_SendByte(uint8_t);
void LCD_SendData(uint8_t);
void LCD_SendCmd(uint8_t);
void LCD_SetPos(uint8_t, uint8_t);
void LCD_Init(void);
void LoadSymbol(void);
#endif