[LLCC68] Fixed set data rate for LLCC68 (#946)

src/modules/LLCC68/LLCC68.cpp

@@ -53,4 +53,65 @@ int16_t LLCC68::setSpreadingFactor(uint8_t sf) {
   return(SX1262::setSpreadingFactor(sf));
 }
 
+int16_t LLCC68::setDataRate(DataRate_t dr) {
+  int16_t state = RADIOLIB_ERR_UNKNOWN;
+
+  // select interpretation based on active modem
+  uint8_t modem = this->getPacketType();
+  if(modem == RADIOLIB_SX126X_PACKET_TYPE_GFSK) {
+    // set the bit rate
+    state = this->setBitRate(dr.fsk.bitRate);
+    RADIOLIB_ASSERT(state);
+
+    // set the frequency deviation
+    state = this->setFrequencyDeviation(dr.fsk.freqDev);
+
+  } else if(modem == RADIOLIB_SX126X_PACKET_TYPE_LORA) {
+    // set the spreading factor
+    state = this->setSpreadingFactor(dr.lora.spreadingFactor);
+    RADIOLIB_ASSERT(state);
+
+    // set the bandwidth
+    state = this->setBandwidth(dr.lora.bandwidth);
+    RADIOLIB_ASSERT(state);
+
+    // set the coding rate
+    state = this->setCodingRate(dr.lora.codingRate);
+  }
+
+  return(state);
+}
+
+int16_t LLCC68::checkDataRate(DataRate_t dr) {
+  int16_t state = RADIOLIB_ERR_UNKNOWN;
+
+  // select interpretation based on active modem
+  uint8_t modem = this->getPacketType();
+  if(modem == RADIOLIB_SX126X_PACKET_TYPE_GFSK) {
+    RADIOLIB_CHECK_RANGE(dr.fsk.bitRate, 0.6, 300.0, RADIOLIB_ERR_INVALID_BIT_RATE);
+    RADIOLIB_CHECK_RANGE(dr.fsk.freqDev, 0.6, 200.0, RADIOLIB_ERR_INVALID_FREQUENCY_DEVIATION);
+
+  } else if(modem == RADIOLIB_SX126X_PACKET_TYPE_LORA) {
+    RADIOLIB_CHECK_RANGE(dr.lora.bandwidth, 100.0, 510.0, RADIOLIB_ERR_INVALID_BANDWIDTH);
+    RADIOLIB_CHECK_RANGE(dr.lora.codingRate, 5, 8, RADIOLIB_ERR_INVALID_CODING_RATE);
+    uint8_t bw_div2 = dr.lora.bandwidth / 2 + 0.01;
+    switch (bw_div2)  {
+      case 62: // 125.0:
+        RADIOLIB_CHECK_RANGE(dr.lora.spreadingFactor, 5, 9, RADIOLIB_ERR_INVALID_SPREADING_FACTOR);
+        break;
+      case 125: // 250.0
+        RADIOLIB_CHECK_RANGE(dr.lora.spreadingFactor, 5, 10, RADIOLIB_ERR_INVALID_SPREADING_FACTOR);
+        break;
+      case 250: // 500.0
+        RADIOLIB_CHECK_RANGE(dr.lora.spreadingFactor, 5, 11, RADIOLIB_ERR_INVALID_SPREADING_FACTOR);
+        break;
+      default:
+        return(RADIOLIB_ERR_INVALID_BANDWIDTH);
+    }
+  
+  }
+
+  return(state);
+}
+
 #endif

src/modules/LLCC68/LLCC68.h

@@ -56,6 +56,20 @@ class LLCC68: public SX1262 {
     */
     int16_t setSpreadingFactor(uint8_t sf);
 
+    /*!
+      \brief Set data.
+      \param dr Data rate struct. Interpretation depends on currently active modem (FSK or LoRa).
+      \returns \ref status_codes
+    */
+    int16_t setDataRate(DataRate_t dr) override;
+    
+    /*!
+      \brief Check the data rate can be configured by this module.
+      \param dr Data rate struct. Interpretation depends on currently active modem (FSK or LoRa).
+      \returns \ref status_codes
+    */
+    int16_t checkDataRate(DataRate_t dr) override;
+
 #if !RADIOLIB_GODMODE
   private:
 #endif