ESM: delegate gps management to LocationProvider

Author: fdlamotte

src/helpers/sensors/EnvironmentSensorManager.cpp

@@ -437,21 +437,7 @@ void EnvironmentSensorManager::initBasicGPS() {
   #endif
 
   // Try to detect if GPS is physically connected to determine if we should expose the setting
-  #ifdef PIN_GPS_EN
-    pinMode(PIN_GPS_EN, OUTPUT);
-  #ifdef PIN_GPS_EN_ACTIVE
-    digitalWrite(PIN_GPS_EN, PIN_GPS_EN_ACTIVE);   // Power on GPS
-  #else
-    digitalWrite(PIN_GPS_EN, HIGH);   // Power on GPS
-  #endif
-  #endif
-
-#ifdef PIN_GPS_RESET
-    pinMode(PIN_GPS_RESET, OUTPUT);
-    digitalWrite(PIN_GPS_RESET, PIN_GPS_RESET_ACTIVE); // assert for 10ms
-    delay(10);
-    digitalWrite(PIN_GPS_RESET, !PIN_GPS_RESET_ACTIVE);
-#endif
+  _location->begin();
 
   #ifndef PIN_GPS_EN
     MESH_DEBUG_PRINTLN("No GPS wake/reset pin found for this board. Continuing on...");
@@ -472,16 +458,12 @@ void EnvironmentSensorManager::initBasicGPS() {
   } else {
     MESH_DEBUG_PRINTLN("No GPS detected");
   }
-  #ifdef PIN_GPS_EN
-  #ifdef PIN_GPS_EN_ACTIVE
-    digitalWrite(PIN_GPS_EN, !PIN_GPS_EN_ACTIVE);  
-  #else
-    digitalWrite(PIN_GPS_EN, LOW);  // Power off GPS until the setting is changed
-  #endif
-  #endif
+  _location->stop();
   gps_active = false; //Set GPS visibility off until setting is changed
 }
 
+// gps code for rak might be moved to MicroNMEALoactionProvider 
+// or make a new location provider ...
 #ifdef RAK_WISBLOCK_GPS
 void EnvironmentSensorManager::rakGPSInit(){
 
@@ -561,27 +543,12 @@ void EnvironmentSensorManager::start_gps() {
     digitalWrite(gpsResetPin, HIGH);
     return;
   #endif
-  #ifdef PIN_GPS_EN
-    pinMode(PIN_GPS_EN, OUTPUT);
-  #ifdef PIN_GPS_EN_ACTIVE
-    digitalWrite(PIN_GPS_EN, PIN_GPS_EN_ACTIVE);  
-  #else
-    digitalWrite(PIN_GPS_EN, HIGH);
-  #endif
-  #ifndef PIN_GPS_RESET
-    return;
-  #endif
-  #endif
 
-#ifdef PIN_GPS_RESET
-    pinMode(PIN_GPS_RESET, OUTPUT);
-    digitalWrite(PIN_GPS_RESET, PIN_GPS_RESET_ACTIVE); // assert for 10ms
-    delay(10);
-    digitalWrite(PIN_GPS_RESET, !PIN_GPS_RESET_ACTIVE);
-    return;
-#endif
+  _location->begin();
 
+#ifndef PIN_GPS_RESET
   MESH_DEBUG_PRINTLN("Start GPS is N/A on this board. Actual GPS state unchanged");
+#endif
 }
 
 void EnvironmentSensorManager::stop_gps() {
@@ -591,17 +558,12 @@ void EnvironmentSensorManager::stop_gps() {
     digitalWrite(gpsResetPin, LOW);
     return;
   #endif
-  #ifdef PIN_GPS_EN
-    pinMode(PIN_GPS_EN, OUTPUT);
-  #ifdef PIN_GPS_EN_ACTIVE
-    digitalWrite(PIN_GPS_EN, !PIN_GPS_EN_ACTIVE);  
-  #else
-    digitalWrite(PIN_GPS_EN, LOW);
-  #endif   
-  return;
-  #endif
 
+  _location->stop();
+
+  #ifndef PIN_GPS_EN
   MESH_DEBUG_PRINTLN("Stop GPS is N/A on this board. Actual GPS state unchanged");
+  #endif
 }
 
 void EnvironmentSensorManager::loop() {

src/helpers/sensors/MicroNMEALocationProvider.h

@@ -5,15 +5,31 @@
 #include <RTClib.h>
 
 #ifndef GPS_EN
-#define GPS_EN (-1)
+    #ifdef PIN_GPS_EN
+        #define GPS_EN PIN_GPS_EN
+    #else
+        #define GPS_EN (-1)
+    #endif
+#endif
+
+#ifndef PIN_GPS_EN_ACTIVE
+    #define PIN_GPS_EN_ACTIVE HIGH
 #endif
 
 #ifndef GPS_RESET
-#define GPS_RESET (-1)
+    #ifdef PIN_GPS_RESET
+        #define GPS_RESET PIN_GPS_RESET
+    #else
+        #define GPS_RESET (-1)
+    #endif
 #endif
 
 #ifndef GPS_RESET_FORCE
-#define GPS_RESET_FORCE LOW
+    #ifdef PIN_GPS_RESET_ACTIVE
+        #define GPS_RESET_FORCE PIN_GPS_RESET_ACTIVE
+    #else
+        #define GPS_RESET_FORCE LOW
+    #endif
 #endif
 
 class MicroNMEALocationProvider : public LocationProvider {
@@ -40,12 +56,12 @@ public :
     }
 
     void begin() override {
+        if (_pin_en != -1) {
+            digitalWrite(_pin_en, PIN_GPS_EN_ACTIVE);
+        }
         if (_pin_reset != -1) {
             digitalWrite(_pin_reset, !GPS_RESET_FORCE);
         }
-        if (_pin_en != -1) {
-            digitalWrite(_pin_en, HIGH);
-        }
     }
 
     void reset() override {
@@ -58,7 +74,7 @@ public :
 
     void stop() override {
         if (_pin_en != -1) {
-            digitalWrite(_pin_en, LOW);
+            digitalWrite(_pin_en, !PIN_GPS_EN_ACTIVE);
         }        
     }