LibRtc.cpp

//------------------------------------------------------------------------------
//This file is part of embKernel. 
//See license.txt for the full license governing this code.
//------------------------------------------------------------------------------

#include "LibRtc.hpp"

const uint8_t LibRtc::DAYS_IN_MONTH[] = {
        31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

bool LibRtc::isLeapYear(int year) {
    if ((year % 400) == 0) {
        return true;
    }
    if ((year % 100) == 0) {
        return false;
    }
    if ((year % 4) == 0) {
        return true;
    }
    return false;
}

void LibRtc::updateDayOfWeek(DATE* date) {
    const static int t[] = {
            0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4 };

    int d = date->dayOfMonth;
    int m = date->month;
    int y = date->year - (m < 3 ? 1 : 0);

    date->dayOfWeek = (DAY_OF_WEEK) ((y + y / 4 - y / 100 + y / 400 + t[m - 1] + d) % 7);
}

void LibRtc::updateDayOfYear(DATE* date) {
    date->dayOfYear = 0;
    bool leapYear = isLeapYear(date->year);
    for (int i = 1; i < date->month; i++) {
        if (i == FEBRUARY && leapYear) {
            date->dayOfYear += 29;
        }
        else {
            date->dayOfYear += DAYS_IN_MONTH[i - 1];
        }
    }
    date->dayOfYear += date->dayOfMonth;
}

__attribute__(( weak)) void LibRtc::getCurrentDateAndTime(DATE_AND_TIME* dateAndTime) {
    dateAndTime->date.dayOfMonth = 18;
    dateAndTime->date.month = AUGUST;
    dateAndTime->date.year = 2012;
    updateDayOfWeek(&dateAndTime->date);
    updateDayOfYear(&dateAndTime->date);

    dateAndTime->time.ms = 0;
    dateAndTime->time.sec = 0;
    dateAndTime->time.min = 0;
    dateAndTime->time.hour = 12;
}

__attribute__(( weak)) void LibRtc::setCurrentDateAndTime(DATE_AND_TIME* dateAndTime) {

}

__attribute__(( weak))  uint32_t LibRtc::getGmtUnixTime() {
    return 1350716400;
}