Fix NTP client build

Config.h

@@ -131,8 +131,10 @@
                                           //              Use OBSERVED_PLACE for no refraction.
 
 // TIME AND LOCATION ---------------------------------------------- see https://onstep.groups.io/g/main/wiki/Configuration_Mount#TLS
-#define TIME_LOCATION_SOURCE          OFF //    OFF, DS3231 (I2c,) DS3234 (Spi,) TEENSY (T3.2 internal,) or GPS source.       Option
+#define TIME_LOCATION_SOURCE          OFF //    OFF, DS3231 (I2c,) DS3234 (Spi,) TEENSY (T3.2 internal,), NTP or GPS source.  Option
                                           //         Provides Date/Time, and if available, PPS & Lat/Long also.
+                                          //         NTP source is only awailable for #SERIAL_IP_MODE = STATION and don't forget to 
+                                          //         configure NTP server address with #TIME_IP_ADDR
 #define TIME_LOCATION_PPS_SENSE       OFF //    OFF, HIGH senses PPS (pulse per second,) signal rising edge, or use LOW for   Option
                                           //         falling edge, or use BOTH for rising and falling edges.
                                           //         Better tracking accuracy especially for Mega2560's w/ceramic resonator.

src/lib/tls/NTP.cpp

@@ -69,7 +69,7 @@ void TimeLocationSource::get(JulianDate &ut1) {
       hour() <= 23 && minute() <= 59 && second() <= 59) {
     GregorianDate greg; greg.year = year(); greg.month = month(); greg.day = day();
     ut1 = calendars.gregorianToJulianDay(greg);
-    ut1.hour = hour() + minute()/60.0 + second()/3600.0;
+    ut1.hour = hour() + minute()/60.0 + (second() + DUT1)/3600.0;
   }
 }
 

src/lib/tls/NTP.h

@@ -7,7 +7,11 @@
 
 #if defined(TIME_LOCATION_SOURCE) && TIME_LOCATION_SOURCE == NTP
 
-#include <EthernetUdp.h>
+#if OPERATIONAL_MODE == WIFI
+  #include <WiFiUdp.h>
+#else
+  #include <Ethernet.h>
+#endif
 #include "../calendars/Calendars.h"
 
 class TimeLocationSource {
@@ -31,6 +35,9 @@ class TimeLocationSource {
     // update from NTP
     void poll();
 
+    // for conversion from UTC to UT1
+    double DUT1 = 0.0L;
+
   private:
     // send an NTP request to the time server at the given address
     void sendNTPpacket(IPAddress &address);

src/telescope/mount/site/Site.cpp

@@ -59,6 +59,33 @@ IRAM_ATTR void clockTickWrapper() { fracLAST++; }
   }
 #endif
 
+#if TIME_LOCATION_SOURCE == NTP
+  void ntpCheck() {
+    if (tls.isReady()) {
+      VLF("MSG: Mount, setting date/time from NTP");
+      JulianDate jd;
+      tls.get(jd);
+      site.dateIsReady = true;
+      site.timeIsReady = true;
+      site.setDateTime(jd);
+      #if GOTO_FEATURE == ON
+        if (park.state == PS_PARKED) park.restore(false);
+      #endif
+
+      VLF("MSG: Mount, stopping NTP monitor task");
+      tasks.setDurationComplete(tasks.getHandleByName("ntpChk"));
+    } else
+
+    if ((long)(millis() - site.updateTimeoutTime) > 0) {
+      VLF("MSG: Mount, NTP timed out stopping monitor task");
+      tasks.setDurationComplete(tasks.getHandleByName("ntpChk"));
+      VLF("WRN: TLS, NTP timed out stopping monitor task");
+      tasks.setDurationComplete(tasks.getHandleByName("ntp"));
+      initError.tls = true; 
+    }
+  }
+#endif
+
 void Site::init() {
   // get location
   VLF("MSG: Mount, site get Latitude/Longitude from NV");
@@ -82,6 +109,11 @@ void Site::init() {
           VF("MSG: Transform, start GPS check task (rate 5000ms priority 7)... ");
           if (tasks.add(5000, 0, true, 7, gpsCheck, "gpsChk")) { VLF("success"); } else { VLF("FAILED!"); }
         #endif
+        #if TIME_LOCATION_SOURCE == NTP
+          updateTimeoutTime = millis() + NTP_TIMEOUT_SECONDS*1000UL;
+          VF("MSG: Transform, start NTP check task (rate 5000ms priority 7)... ");
+          if (tasks.add(5000, 0, true, 7, ntpCheck, "ntpChk")) { VLF("success"); } else { VLF("FAILED!"); }
+        #endif
       }
     } else {
       DLF("WRN: Site::init(), Warning TLS initialization failed");