#include <avr/io.h>				            // Aliases for IO ports etc.
#include <stdint.h>				            // Standard data types

#include "spi.h"
#include "dogm.h"

void DOGM_CS(uint8_t uCS)
{
	if (uCS > 0)
	{
		DOGM_CS_PORT &= ~(DOGM_CS_PIN);
	}
	else
	{
		DOGM_CS_PORT |= (DOGM_CS_PIN);		
	}	
}

void DOGM_RS(uint8_t uRS)
{
	if (uRS > 0)
	{
		DOGM_RS_PORT &= ~(DOGM_RS_PIN);
	}
	else
	{
		DOGM_RS_PORT |= (DOGM_RS_PIN);		
	}	
}

void DOGM_init(void)
{
	DOGM_RS_DDR |= DOGM_RS_PIN;			// Set DDR register for port as output
	DOGM_CS_DDR |= DOGM_CS_PIN;			// Set DDR register for port as output
	
	DOGM_RS(1);
	DOGM_CS(1);

	SPI_Data(0x39);
	_delay_us(DOGM_DELAY_S);
	SPI_Data(0x1C);
	_delay_us(DOGM_DELAY_S);
	SPI_Data(0x52);
	_delay_us(DOGM_DELAY_S);
	SPI_Data(0x69);
	_delay_us(DOGM_DELAY_S);
	SPI_Data(0x74);
	_delay_us(DOGM_DELAY_S);
	SPI_Data(0x38);
	_delay_us(DOGM_DELAY_S);
	SPI_Data(0x0C);
	_delay_us(DOGM_DELAY_S);
	SPI_Data(0x01);
	_delay_us(DOGM_DELAY_L);
	SPI_Data(0x06);
	_delay_us(DOGM_DELAY_S);

	DOGM_RS(0);
	DOGM_CS(0);
}

void DOGM_putc(char cData)
{
	DOGM_RS(0);
	DOGM_CS(1);
	SPI_Data(cData);
	_delay_us(DOGM_DELAY_S);
	DOGM_CS(0);
}

void DOGM_puts(char * cString)
{
  while(*cString != '\0')
    DOGM_putc(*cString++);
}

void DOGM_gotoxy(uint8_t uX, uint8_t uY)
{
	uint8_t addr;

	addr = (uY * 0x40) + uX;

	DOGM_RS(1);
	DOGM_CS(1);
	SPI_Data(0x80 | addr);
	_delay_us(DOGM_DELAY_S);
	DOGM_CS(0);
}

void DOGM_clear(void)
{
	DOGM_RS(1);
	DOGM_CS(1);
	SPI_Data(0x01);
	_delay_us(DOGM_DELAY_L);
	DOGM_CS(0); 
}