[PHY] Added data rate check method

keywords.txt

@@ -286,6 +286,7 @@ clearPacketReceivedAction	KEYWORD2
 setPacketSentAction	KEYWORD2
 clearPacketSentAction	KEYWORD2
 setDataRate	KEYWORD2
+checkDataRate	KEYWORD2
 
 # BellModem
 setModem	KEYWORD2

src/protocols/PhysicalLayer/PhysicalLayer.cpp

@@ -272,6 +272,11 @@ int16_t PhysicalLayer::setDataRate(DataRate_t dr) {
   return(RADIOLIB_ERR_UNSUPPORTED);
 }
 
+int16_t PhysicalLayer::checkDataRate(DataRate_t dr) {
+  (void)dr;
+  return(RADIOLIB_ERR_UNSUPPORTED);
+}
+
 float PhysicalLayer::getFreqStep() const {
   return(this->freqStep);
 }

src/protocols/PhysicalLayer/PhysicalLayer.h

@@ -278,6 +278,13 @@ class PhysicalLayer {
     */
     virtual int16_t setDataRate(DataRate_t dr);
 
+    /*!
+      \brief Check the data rate can be configured by this module. Must be implemented in module class if the module supports it.
+      \param dr Data rate struct. Interpretation depends on currently active modem (FSK or LoRa).
+      \returns \ref status_codes
+    */
+    virtual int16_t checkDataRate(DataRate_t dr);
+
     /*!
       \brief Gets the module frequency step size that was set in constructor.
       \returns Synthesizer frequency step size in Hz.