- if (!timer_context()) {
- panick("Systimer not initialized");
- }
-
- // 系统计时器每毫秒累加。
- timer_run_ms(1, clock_systime_counter, NULL, TIMER_MODE_PERIODIC);
-
- clock_build_mapping();
-}
-
-void
-clock_systime_counter(void* arg)
-{
- sys_time++;
-}
-
-int
-clock_datatime_eq(datetime_t* a, datetime_t* b)
-{
- return a->year == b->year && a->month == b->month && a->day == b->day &&
- a->weekday == b->weekday && a->minute == b->minute &&
- a->second == b->second;
-}
-
-void
-clock_walltime(datetime_t* datetime)
-{
- datetime_t current;
-
- do {
- while (rtc_read_reg(RTC_REG_A) & 0x80)
- ;
- memcpy(¤t, datetime, sizeof(datetime_t));
-
- datetime->year = rtc_read_reg(RTC_REG_YRS);
- datetime->month = rtc_read_reg(RTC_REG_MTH);
- datetime->day = rtc_read_reg(RTC_REG_DAY);
- datetime->weekday = rtc_read_reg(RTC_REG_WDY);
- datetime->hour = rtc_read_reg(RTC_REG_HRS);
- datetime->minute = rtc_read_reg(RTC_REG_MIN);
- datetime->second = rtc_read_reg(RTC_REG_SEC);
- } while (!clock_datatime_eq(datetime, ¤t));
-
- u8_t regbv = rtc_read_reg(RTC_REG_B);
-
- // Convert from bcd to binary when needed
- if (!RTC_BIN_ENCODED(regbv)) {
- datetime->year = bcd2dec(datetime->year);
- datetime->month = bcd2dec(datetime->month);
- datetime->day = bcd2dec(datetime->day);
- datetime->hour = bcd2dec(datetime->hour);
- datetime->minute = bcd2dec(datetime->minute);
- datetime->second = bcd2dec(datetime->second);
- }
-
- // To 24 hour format
- if (!RTC_24HRS_ENCODED(regbv) && (datetime->hour >> 7)) {
- datetime->hour = 12 + (datetime->hour & 0x80);
- }
-
- datetime->year += RTC_CURRENT_CENTRY * 100;