time.c

来自「microwindows移植到S3C44B0的源码」· C语言 代码 · 共 41 行

/*
 * time.c  Timer functions for Samsung s3c44b0
 */

#include <linux/time.h>
#include <linux/timex.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <asm/io.h>
#include <asm/arch/hardware.h>


#define BCD2HEX(n)	((n>>4)*10+(n&0x0f))

unsigned long s3c44b0_get_rtc_time(void)
{
	int year, month, day, hour, minute, second;

	RTCCON |= 1;
	year 	= BCD2HEX(BCDYEAR);
	month 	= BCD2HEX(BCDMON);
	day 	= BCD2HEX(BCDDATE);
	hour 	= BCD2HEX(BCDHOUR);
	minute 	= BCD2HEX(BCDMIN);
	second 	= BCD2HEX(BCDSEC);
	RTCCON &= ~1;

	if(year >= 70)
		year += 1900;
	else
		year += 2000;

	return mktime(year, month, day, hour, minute, second);
}

unsigned long s3c44b0_gettimeoffset(void)
{
	return 10000 - TCNTO5;
}