Function alarm_setup

components/drivers/rtc/dev_alarm.c:366–522

}

static rt_err_t alarm_setup(rt_alarm_t alarm, struct tm *wktime)
{
    rt_err_t ret = -RT_ERROR;
    time_t timestamp = (time_t)0;
    struct tm *setup, now;

    setup = &alarm->wktime;
    *setup = *wktime;
    /* get time of now */
    get_timestamp(&timestamp);
#ifdef RT_ALARM_USING_LOCAL_TIME
    localtime_r(&timestamp, &now);
#else
    gmtime_r(&timestamp, &now);
#endif

    /* if these are a "don't care" value,we set them to now*/
    if ((setup->tm_sec > 59) || (setup->tm_sec < 0))
        setup->tm_sec = now.tm_sec;
    if ((setup->tm_min > 59) || (setup->tm_min < 0))
        setup->tm_min = now.tm_min;
    if ((setup->tm_hour > 23) || (setup->tm_hour < 0))
        setup->tm_hour = now.tm_hour;

    switch (alarm->flag & 0xFF00)
    {
    case RT_ALARM_SECOND:
    {
        alarm->wktime.tm_hour = now.tm_hour;
        alarm->wktime.tm_min = now.tm_min;
        alarm->wktime.tm_sec = now.tm_sec + 1;
        if (alarm->wktime.tm_sec > 59)
        {
            alarm->wktime.tm_sec = 0;
            alarm->wktime.tm_min = alarm->wktime.tm_min + 1;
            if (alarm->wktime.tm_min > 59)
            {
                alarm->wktime.tm_min = 0;
                alarm->wktime.tm_hour = alarm->wktime.tm_hour + 1;
                if (alarm->wktime.tm_hour > 23)
                {
                    alarm->wktime.tm_hour = 0;
                }
            }
        }
    }
    break;
    case RT_ALARM_MINUTE:
    {
        alarm->wktime.tm_hour = now.tm_hour;
        alarm->wktime.tm_min = now.tm_min + 1;
        if (alarm->wktime.tm_min > 59)
        {
            alarm->wktime.tm_min = 0;
            alarm->wktime.tm_hour = alarm->wktime.tm_hour + 1;
            if (alarm->wktime.tm_hour > 23)
            {
                alarm->wktime.tm_hour = 0;