#ifndef _LCD_H
#define _LCD_H

#include <string.h>
#include "timerdelay.h"

#define LCDRows     4
#define LCDColumns 20
#define LCDBufferSize LCDRows*LCDColumns

// I/O allocations for the Mitsubishi microcontroller Developement Board
#define LCD_DATA p3         //Port connected to LCDz
#define LCD_DIR  pd3_addr   //Direction of port

#define LCD_DB4  p3_4       //Data bus line
#define LCD_DB5  p3_5       //Data bus line         DB0-3 not connected in 4-bit mode
#define LCD_DB6  p3_6       //Data bus line
#define LCD_DB7  p3_7       //Data bus line
#define LCD_RS   p3_1       //Register select
#define LCD_RW   p3_2       //Read/Write select    H: Read  L: Write
#define LCD_E    p3_3       //Enable

#define LCDBufferOffset(C,R) ((((R)-1)*LCDColumns)+((C)-1))
#define LCDCursorPosnValid(C,R) (((C>0)&&(C<=LCDColumns))&&((R>0)&&(R<=LCDRows)))

#define LCDWrite(x) (LCD_DATA=((LCD_DATA&0xF0)|((x)&0x0F)))

/* Function Prototypes */
void LCDInitialisePort(void);
void LCDInitialise(void);
void LCDClear(void);
void LCDClearLine(unsigned char row);
void LCDClearPartialLine(unsigned char from,unsigned char to,unsigned char row);
void LCDMoveLine(unsigned char from,unsigned char to);
void LCDMovePartialLine(unsigned char from_column,unsigned char to_column,unsigned char from_row,unsigned char to_row);
void LCDWriteChar(unsigned char column, unsigned char row,char data);
void LCDWriteInt(unsigned char column, unsigned char row,unsigned int number,unsigned char numofchars);
void LCDWriteHex(unsigned char column, unsigned char row,unsigned int number,unsigned char numofchars);
void LCDWriteString(unsigned char column, unsigned char row,const char *message);
char LCDReadChar(unsigned char column, unsigned char row);
void LCDWriteCustomChars(void);
void LCDToggleE(void);
void LCDWaitForBusyBit(void);   
bool LCDSetCursorPosn(unsigned char column, unsigned char row);
#endif

bool LCDSetCursorPosn(unsigned char column, unsigned char row);