94 lines
2.2 KiB
C++
94 lines
2.2 KiB
C++
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#include <Arduino.h>
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#include "Clock.h"
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#include "BTCDateTime.h"
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#include "Wire.h"
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#include "RTClib.h"
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#include "helpers.h"
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#include "NVStorage.h"
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CClock::CClock(RTC_DS3231& rtc) : _rtc(rtc)
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{
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}
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void
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CClock::begin()
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{
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_rtc.begin();
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_nextRTCfetch = millis();
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}
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const BTCDateTime&
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CClock::update()
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{
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long deltaT = millis() - _nextRTCfetch;
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if(deltaT >= 0) {
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uint32_t origClock = Wire.getClock();
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Wire.setClock(400000);
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_currentTime = _rtc.now(); // moderate I2C accesses
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Wire.setClock(origClock);
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_nextRTCfetch = millis() + 500;
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_checkTimers();
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}
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return _currentTime;
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}
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const BTCDateTime&
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CClock::get() const
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{
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return _currentTime;
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}
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void
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CClock::set(const DateTime& newTimeDate)
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{
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_rtc.adjust(newTimeDate);
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}
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void
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CClock::_checkTimers()
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{
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_checkTimer(0, _currentTime); // test timer 1
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_checkTimer(1, _currentTime); // test timer 2
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}
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void
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CClock::_checkTimer(int timer, const DateTime& now)
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{
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sTimer Info;
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NVstore.getTimerInfo(timer, Info);
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int DOW = now.dayOfTheWeek();
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int timeNow = now.hour() * 60 + now.minute();
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int timeStart = Info.start.hour * 60 + Info.start.min;
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int timeStop = Info.stop.hour * 60 + Info.stop.min;
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// ensure DOW tracks expected start day should timer straddle midnight
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if(timeStop < timeStart) { // true if stop is next morning
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if(timeNow <= timeStop) { // current time has passed midnight - enable flag is based upon prior day
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DOW--;
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ROLLLOWERLIMIT(DOW, 0, 6); // fixup for saturday night!
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}
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}
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// DOW of week is now correct for the day this timer started
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int maskDOW = 0x01 << DOW;
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if(Info.enabled & (maskDOW | 0x80) ) { // specific day of week, or next day
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if(timeNow == timeStart && now.second() < 3) { // check start, within 2 seconds of the minute rollover
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requestOn();
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}
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if(timeNow == timeStop) { // check stop
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requestOff();
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if(!Info.repeat) { // cancel timer if non repeating
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if(Info.enabled & 0x80) // next day start flag set?
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Info.enabled = 0; // outright cancel
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else {
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Info.enabled &= ~maskDOW; // otherwise clear specific day
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}
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NVstore.setTimerInfo(timer, Info);
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NVstore.save();
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}
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}
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}
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}
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