Add helper functions for SX1277, SX1278, SX1279

src/modules/SX127x/SX1277.cpp

@@ -100,4 +100,24 @@ int16_t SX1277::setSpreadingFactor(uint8_t sf) {
   return(state);
 }
 
+int16_t SX1277::setFHSSHoppingPeriod(uint8_t freqHoppingPeriod) {
+  return(_mod->SPIsetRegValue(RADIOLIB_SX127X_REG_HOP_PERIOD, freqHoppingPeriod));
+}
+
+uint8_t SX1277::getFHSSHoppingPeriod(void) {
+  return(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_PERIOD)); 
+}
+
+uint8_t SX1277::getFHSSChannel(void) {
+  return(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_CHANNEL, 5, 0)); 
+}
+
+void SX1277::clearFHSSInt(void) {
+  int16_t modem = getActiveModem();
+  if(modem == RADIOLIB_SX127X_LORA) {
+    _mod->SPIwriteRegister(RADIOLIB_SX127X_REG_IRQ_FLAGS, getIRQFlags() | RADIOLIB_SX127X_CLEAR_IRQ_FLAG_FHSS_CHANGE_CHANNEL);
+  } else if(modem == RADIOLIB_SX127X_FSK_OOK) {
+    return; //These are not the interrupts you are looking for
+  }  
+}
 #endif

src/modules/SX127x/SX1277.h

@@ -93,6 +93,34 @@ class SX1277: public SX1278 {
     */
     int16_t setSpreadingFactor(uint8_t sf);
 
+    /*!
+      \brief Sets the hopping period and enables FHSS
+
+      \param freqHoppingPeriod Integer multiple of symbol periods between hops
+
+      \returns \ref status_codes
+    */
+    int16_t setFHSSHoppingPeriod(uint8_t freqHoppingPeriod);
+
+        /*!
+      \brief Gets FHSS hopping period
+
+      \returns 8 bit period
+    */
+    uint8_t getFHSSHoppingPeriod(void);
+
+    /*!
+      \brief Gets the FHSS channel in use
+
+      \returns 6 bit channel number
+    */
+    uint8_t getFHSSChannel(void);
+
+    /*!
+      \brief Clear the FHSS interrupt
+    */
+    void clearFHSSInt(void);
+    
 #if !defined(RADIOLIB_GODMODE)
   private:
 #endif

src/modules/SX127x/SX1278.cpp

@@ -623,4 +623,25 @@ void SX1278::errataFix(bool rx) {
   _mod->SPIsetRegValue(0x30, fixedRegs[2]);
 }
 
+int16_t SX1278::setFHSSHoppingPeriod(uint8_t freqHoppingPeriod) {
+  return(_mod->SPIsetRegValue(RADIOLIB_SX127X_REG_HOP_PERIOD, freqHoppingPeriod));
+}
+
+uint8_t SX1278::getFHSSHoppingPeriod(void) {
+  return(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_PERIOD)); 
+}
+
+uint8_t SX1278::getFHSSChannel(void) {
+  return(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_CHANNEL, 5, 0)); 
+}
+
+void SX1278::clearFHSSInt(void) {
+  int16_t modem = getActiveModem();
+  if(modem == RADIOLIB_SX127X_LORA) {
+    _mod->SPIwriteRegister(RADIOLIB_SX127X_REG_IRQ_FLAGS, getIRQFlags() | RADIOLIB_SX127X_CLEAR_IRQ_FLAG_FHSS_CHANGE_CHANNEL);
+  } else if(modem == RADIOLIB_SX127X_FSK_OOK) {
+    return; //These are not the interrupts you are looking for
+  }  
+}
+
 #endif

src/modules/SX127x/SX1278.h

@@ -302,6 +302,34 @@ class SX1278: public SX127x {
     */
     int16_t explicitHeader();
 
+    /*!
+      \brief Sets the hopping period and enables FHSS
+
+      \param freqHoppingPeriod Integer multiple of symbol periods between hops
+
+      \returns \ref status_codes
+    */
+    int16_t setFHSSHoppingPeriod(uint8_t freqHoppingPeriod);
+
+        /*!
+      \brief Gets FHSS hopping period
+
+      \returns 8 bit period
+    */
+    uint8_t getFHSSHoppingPeriod(void);
+
+    /*!
+      \brief Gets the FHSS channel in use
+
+      \returns 6 bit channel number
+    */
+    uint8_t getFHSSChannel(void);
+
+    /*!
+      \brief Clear the FHSS interrupt
+    */
+    void clearFHSSInt(void);
+
 #if !defined(RADIOLIB_GODMODE)
   protected:
 #endif

src/modules/SX127x/SX1279.cpp

@@ -70,4 +70,25 @@ int16_t SX1279::setFrequency(float freq) {
   return(state);
 }
 
+int16_t SX1279::setFHSSHoppingPeriod(uint8_t freqHoppingPeriod) {
+  return(_mod->SPIsetRegValue(RADIOLIB_SX127X_REG_HOP_PERIOD, freqHoppingPeriod));
+}
+
+uint8_t SX1279::getFHSSHoppingPeriod(void) {
+  return(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_PERIOD)); 
+}
+
+uint8_t SX1279::getFHSSChannel(void) {
+  return(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_CHANNEL, 5, 0)); 
+}
+
+void SX1279::clearFHSSInt(void) {
+  int16_t modem = getActiveModem();
+  if(modem == RADIOLIB_SX127X_LORA) {
+    _mod->SPIwriteRegister(RADIOLIB_SX127X_REG_IRQ_FLAGS, getIRQFlags() | RADIOLIB_SX127X_CLEAR_IRQ_FLAG_FHSS_CHANGE_CHANNEL);
+  } else if(modem == RADIOLIB_SX127X_FSK_OOK) {
+    return; //These are not the interrupts you are looking for
+  }  
+}
+
 #endif

src/modules/SX127x/SX1279.h

@@ -84,6 +84,34 @@ class SX1279: public SX1278 {
     */
     int16_t setFrequency(float freq);
 
+    /*!
+      \brief Sets the hopping period and enables FHSS
+
+      \param freqHoppingPeriod Integer multiple of symbol periods between hops
+
+      \returns \ref status_codes
+    */
+    int16_t setFHSSHoppingPeriod(uint8_t freqHoppingPeriod);
+
+        /*!
+      \brief Gets FHSS hopping period
+
+      \returns 8 bit period
+    */
+    uint8_t getFHSSHoppingPeriod(void);
+
+    /*!
+      \brief Gets the FHSS channel in use
+
+      \returns 6 bit channel number
+    */
+    uint8_t getFHSSChannel(void);
+
+    /*!
+      \brief Clear the FHSS interrupt
+    */
+    void clearFHSSInt(void);
+
 #if !defined(RADIOLIB_GODMODE)
   private:
 #endif

src/modules/SX127x/SX127x.cpp

@@ -375,10 +375,12 @@ int16_t SX127x::startReceive(uint8_t len, uint8_t mode) {
   int16_t modem = getActiveModem();
   if(modem == RADIOLIB_SX127X_LORA) {
     // set DIO pin mapping
-    if(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_PERIOD) > RADIOLIB_SX127X_HOP_PERIOD_OFF)
+    if(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_PERIOD) > RADIOLIB_SX127X_HOP_PERIOD_OFF) {
       state = _mod->SPIsetRegValue(RADIOLIB_SX127X_REG_DIO_MAPPING_1, RADIOLIB_SX127X_DIO0_RX_DONE | RADIOLIB_SX127X_DIO1_FHSS_CHANGE_CHANNEL, 7, 4);
-    else
+    }
+    else {
       state = _mod->SPIsetRegValue(RADIOLIB_SX127X_REG_DIO_MAPPING_1, RADIOLIB_SX127X_DIO0_RX_DONE | RADIOLIB_SX127X_DIO1_RX_TIMEOUT, 7, 4);
+    }
 
     // set expected packet length for SF6
     if(_sf == 6) {
@@ -451,10 +453,12 @@ int16_t SX127x::startTransmit(uint8_t* data, size_t len, uint8_t addr) {
     }
 
     // set DIO mapping
-    if(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_PERIOD) > RADIOLIB_SX127X_HOP_PERIOD_OFF)
+    if(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_PERIOD) > RADIOLIB_SX127X_HOP_PERIOD_OFF) {
       _mod->SPIsetRegValue(RADIOLIB_SX127X_REG_DIO_MAPPING_1, RADIOLIB_SX127X_DIO0_TX_DONE | RADIOLIB_SX127X_DIO1_FHSS_CHANGE_CHANNEL, 7, 4);
-    else
+    }
+    else {
       _mod->SPIsetRegValue(RADIOLIB_SX127X_REG_DIO_MAPPING_1, RADIOLIB_SX127X_DIO0_TX_DONE, 7, 6);
+    }
 
     // apply fixes to errata
     RADIOLIB_ERRATA_SX127X(false);
@@ -996,8 +1000,9 @@ int16_t SX127x::setFrequencyRaw(float newFreq) {
   int16_t state = RADIOLIB_ERR_NONE;
   
   // set mode to standby if not FHSS
-  if(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_PERIOD) == RADIOLIB_SX127X_HOP_PERIOD_OFF)
+  if(_mod->SPIgetRegValue(RADIOLIB_SX127X_REG_HOP_PERIOD) == RADIOLIB_SX127X_HOP_PERIOD_OFF) {
     state = setMode(RADIOLIB_SX127X_STANDBY);
+  }
 
   // calculate register values
   uint32_t FRF = (newFreq * (uint32_t(1) << RADIOLIB_SX127X_DIV_EXPONENT)) / RADIOLIB_SX127X_CRYSTAL_FREQ;