#ifndef LCD_H_
#define LCD_H_

#define RS_PIN      2
#define RW_PIN      1
#define EN_PIN      3

#define RS_PORT PORTD
#define RW_PORT PORTD
#define EN_PORT PORTD

#define RS_DDR      DDRD
#define RW_DDR      DDRD
#define EN_DDR      DDRD

//if defined LCD4, use 4-bit interface, else use 8-bit interface
#define LCD4

void LCDInit(void);

void LCDBusy(void);
void LCDData(unsigned char data);
void LCDCommand(unsigned char cmd);

inline void LCDSetPosition(unsigned char line, unsigned char col)
{
    LCDBusy();

    unsigned char addr;
    if(line==2)addr=0xA8;
    else addr=0x80;
    addr+=col;
    LCDCommand(addr);
}

inline void LCDWriteChar(char ch)
{
    LCDBusy();
    LCDData(ch);
}

void LCDWriteString(char* str, unsigned char strLen);
void LCDWriteStringZ(char* str);

#endif /* LCD_H_ */