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open-ameba/RTL00_SDKV35a/example_sources/gtimer_rtc/src/main.c
2016-12-14 04:21:37 +03:00

126 lines
4.2 KiB
C

/*
* Routines to access hardware
*
* Copyright (c) 2013 Realtek Semiconductor Corp.
*
* This module is a confidential and proprietary property of RealTek and
* possession or use of this module requires written permission of RealTek.
*/
#include "device.h"
#include <time.h>
#include "timer_api.h"
#include "main.h"
#define SW_RTC_TIMER_ID TIMER4
static gtimer_t sw_rtc;
static volatile struct tm rtc_timeinfo;
const static u8 dim[14] = {
31, 0, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31, 31, 28 };
static inline bool is_leap_year(unsigned int year)
{
return (!(year % 4) && (year % 100)) || !(year % 400);
}
static u8 days_in_month (u8 month, u8 year)
{
u8 ret = dim [ month - 1 ];
if (ret == 0)
ret = is_leap_year (year) ? 29 : 28;
return ret;
}
static void sw_rtc_tick_handler(uint32_t id)
{
if(++rtc_timeinfo.tm_sec > 59) { // Increment seconds, check for overflow
rtc_timeinfo.tm_sec = 0; // Reset seconds
if(++rtc_timeinfo.tm_min > 59) { // Increment minutes, check for overflow
rtc_timeinfo.tm_min = 0; // Reset minutes
if(++rtc_timeinfo.tm_hour > 23) { // Increment hours, check for overflow
rtc_timeinfo.tm_hour = 0; // Reset hours
++rtc_timeinfo.tm_yday; // Increment day of year
if(++rtc_timeinfo.tm_wday > 6) // Increment day of week, check for overflow
rtc_timeinfo.tm_wday = 0; // Reset day of week
// Increment day of month, check for overflow
if(++rtc_timeinfo.tm_mday >
days_in_month(rtc_timeinfo.tm_mon, rtc_timeinfo.tm_year)) {
rtc_timeinfo.tm_mday = 1; // Reset day of month
if(++rtc_timeinfo.tm_mon > 11) { // Increment month, check for overflow
rtc_timeinfo.tm_mon = 0; // Reset month
rtc_timeinfo.tm_yday = 0; // Reset day of year
++rtc_timeinfo.tm_year; // Increment year
} // - year
} // - month
} // - day
} // - hour
}
}
static void rtc_init(void)
{
// Initial a periodical timer
gtimer_init(&sw_rtc, SW_RTC_TIMER_ID);
// Tick every 1 sec
gtimer_start_periodical(&sw_rtc, 1000000, (void*)sw_rtc_tick_handler, (uint32_t)&sw_rtc);
}
static void rtc_deinit(void)
{
gtimer_stop(&sw_rtc);
gtimer_deinit(&sw_rtc);
}
static void rtc_set_time(uint32_t year, uint8_t mon, uint8_t mday, uint8_t wday,
uint8_t hour, uint8_t min, uint8_t sec)
{
int i;
gtimer_stop(&sw_rtc);
rtc_timeinfo.tm_sec = sec;
rtc_timeinfo.tm_min = min;
rtc_timeinfo.tm_hour = hour;
rtc_timeinfo.tm_mday = mday-1;
rtc_timeinfo.tm_wday = wday-1;
rtc_timeinfo.tm_yday = 0;
for (i=0;i<(mon-1);i++) {
rtc_timeinfo.tm_yday += days_in_month(i,year);
}
rtc_timeinfo.tm_yday += (mday-1);
rtc_timeinfo.tm_mon = mon-1;
rtc_timeinfo.tm_year = year;
gtimer_start(&sw_rtc);
}
static void rtc_read_time(struct tm *timeinfo)
{
_memcpy((void*)timeinfo, (void*)&rtc_timeinfo, sizeof(struct tm));
timeinfo->tm_mon++;
timeinfo->tm_mday++;
timeinfo->tm_wday++;
timeinfo->tm_yday++;
}
void main(void)
{
struct tm timeinfo;
rtc_init();
// Give RTC a initial value: 2015/4/15 (Wed) 12:00:00
rtc_set_time(2015, 4, 15, 3, 12, 0, 0);
while (1) {
rtc_read_time(&timeinfo);
DBG_8195A("%d-%d-%d[%d] %d:%d:%d\r\n", timeinfo.tm_year, timeinfo.tm_mon, timeinfo.tm_mday,
timeinfo.tm_wday, timeinfo.tm_hour, timeinfo.tm_min, timeinfo.tm_sec);
wait_ms(1000);
}
rtc_deinit();
}