136 lines
3.4 KiB
C++
136 lines
3.4 KiB
C++
#ifdef HAS_RTC
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#include "rtctime.h"
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// Local logging tag
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static const char TAG[] = "main";
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RtcDS3231<TwoWire> Rtc(Wire);
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// initialize RTC
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int rtc_init(void) {
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// return = 0 -> error / return = 1 -> success
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// block i2c bus access
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if (xSemaphoreTake(I2Caccess, (DISPLAYREFRESH_MS / portTICK_PERIOD_MS)) ==
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pdTRUE) {
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Wire.begin(HAS_RTC);
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Rtc.Begin();
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RtcDateTime compiled = RtcDateTime(__DATE__, __TIME__);
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if (!Rtc.IsDateTimeValid()) {
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ESP_LOGW(TAG,
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"RTC has no valid RTC date/time, setting to compilation date");
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Rtc.SetDateTime(compiled);
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}
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if (!Rtc.GetIsRunning()) {
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ESP_LOGI(TAG, "RTC not running, starting now");
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Rtc.SetIsRunning(true);
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}
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RtcDateTime now = Rtc.GetDateTime();
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if (now < compiled) {
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ESP_LOGI(TAG, "RTC date/time is older than compilation date, updating)");
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Rtc.SetDateTime(compiled);
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}
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// configure RTC chip
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Rtc.Enable32kHzPin(false);
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Rtc.SetSquareWavePin(DS3231SquareWavePin_ModeNone);
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} else {
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ESP_LOGE(TAG, "I2c bus busy - RTC initialization error");
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goto error;
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}
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xSemaphoreGive(I2Caccess); // release i2c bus access
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ESP_LOGI(TAG, "RTC initialized");
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return 1;
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error:
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xSemaphoreGive(I2Caccess); // release i2c bus access
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return 0;
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} // rtc_init()
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int set_rtctime(uint32_t UTCTime) {
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// return = 0 -> error / return = 1 -> success
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// block i2c bus access
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while (xSemaphoreTake(I2Caccess, DISPLAYREFRESH_MS) == pdTRUE) {
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Rtc.SetDateTime(RtcDateTime(UTCTime));
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xSemaphoreGive(I2Caccess); // release i2c bus access
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return 1;
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}
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return 0;
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} // set_rtctime()
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int set_rtctime(RtcDateTime t) {
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// return = 0 -> error / return = 1 -> success
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// block i2c bus access
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while (xSemaphoreTake(I2Caccess, DISPLAYREFRESH_MS) == pdTRUE) {
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Rtc.SetDateTime(t);
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xSemaphoreGive(I2Caccess); // release i2c bus access
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return 1;
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}
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return 0;
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} // set_rtctime()
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time_t get_rtctime(void) {
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// never call now() in this function, would cause recursion!
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time_t tt = 0;
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// block i2c bus access
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if (xSemaphoreTake(I2Caccess, DISPLAYREFRESH_MS) == pdTRUE) {
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if (!Rtc.IsDateTimeValid()) {
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ESP_LOGW(TAG, "RTC lost confidence in the DateTime");
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} else {
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RtcDateTime t = Rtc.GetDateTime();
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tt = t.Epoch32Time();
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}
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xSemaphoreGive(I2Caccess); // release i2c bus access
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return tt;
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}
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return tt;
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} // get_rtctime()
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void sync_rtctime(void) {
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#ifdef TIME_SYNC_INTERVAL_RTC
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setSyncProvider(&get_rtctime);
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setSyncInterval(TIME_SYNC_INTERVAL_RTC);
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if (timeStatus() != timeSet) {
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ESP_LOGE(TAG, "Unable to sync with the RTC");
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} else {
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time_t t = now();
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ESP_LOGI(TAG, "RTC has set system time to %02d/%02d/%d %02d:%02d:%02d",
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month(t), day(t), year(t), hour(t), minute(t), second(t));
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}
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#endif
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} // sync_rtctime;
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float get_rtctemp(void) {
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// block i2c bus access
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while (xSemaphoreTake(I2Caccess, DISPLAYREFRESH_MS) == pdTRUE) {
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RtcTemperature temp = Rtc.GetTemperature();
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xSemaphoreGive(I2Caccess); // release i2c bus access
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return temp.AsFloatDegC();
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} // while
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return 0;
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} // get_rtc()
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time_t gpsTimeSync(void) {
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#ifdef HAS_GPS
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tmElements_t tm;
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tm.Second = gps.time.second();
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tm.Minute = gps.time.minute();
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tm.Hour = gps.time.hour();
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tm.Day = gps.date.day();
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tm.Month = gps.date.month();
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tm.Year = CalendarYrToTm(gps.date.year());
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return makeTime(tm);
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#endif // HAS_GPS
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}
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#endif // HAS_RTC
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