// rtc.c
// Author: Josh Holtrop
// Created: 02/26/04
// Implements Real-Time Clock function calls
// These functions are for reading and writing various values stored on the CMOS Real Time Clock
// Parameters / return values are in BCD format

#include "hos_defines.h"
#include "rtc.h"
#include "sys/io.h"

unsigned char	rtc_readDay()
{
	outportb(0x70, 7);
	return inportb(0x71);
}

unsigned char	rtc_readMonth()
{
	outportb(0x70, 8);
	return inportb(0x71);
}

unsigned char	rtc_readYear()
{
	outportb(0x70, 9);
	return inportb(0x71);
}

unsigned char	rtc_readSecond()
{
	outportb(0x70, 0);
	return inportb(0x71);
}

unsigned char	rtc_readMinute()
{
	outportb(0x70, 2);
	return inportb(0x71);
}

unsigned char	rtc_readHour()
{
	outportb(0x70, 4);
	return inportb(0x71);
}

void	rtc_setDay(unsigned char day)
{
	outportb(0x70, 7);
	outportb(0x71, day);
}

void	rtc_setMonth(unsigned char month)
{
	outportb(0x70, 8);
	outportb(0x71, month);
}

void	rtc_setYear(unsigned char year)
{
	outportb(0x70, 9);
	outportb(0x71, year);
}

void	rtc_setSecond(unsigned char second)
{
	outportb(0x70, 0);
	outportb(0x71, second);
}

void	rtc_setMinute(unsigned char minute)
{
	outportb(0x70, 2);
	outportb(0x71, minute);
}

void	rtc_setHour(unsigned char hour)
{
	outportb(0x70, 4);
	outportb(0x71, hour);
}