[LR11x0] Move Rx header infos to public method

src/modules/LR11x0/LR11x0.h

@@ -1354,6 +1354,14 @@ class LR11x0: public PhysicalLayer {
     */
     size_t getPacketLength(bool update, uint8_t* offset);
 
+    /*!
+      \brief Get LoRa header information from last received packet. Only valid in explicit header mode.
+      \param cr Pointer to variable to store the coding rate.
+      \param hasCRC Pointer to variable to store the CRC status.
+      \returns \ref status_codes
+    */
+    int16_t getLoRaRxHeaderInfo(uint8_t* cr, bool* hasCRC);
+
     /*!
       \brief Get expected time-on-air for a given size of payload
       \param len Payload length in bytes.
@@ -1712,7 +1720,6 @@ class LR11x0: public PhysicalLayer {
     int16_t lrFhssBuildFrame(uint8_t hdrCount, uint8_t cr, uint8_t grid, bool hop, uint8_t bw, uint16_t hopSeq, int8_t devOffset, const uint8_t* payload, size_t len);
     int16_t lrFhssSetSyncWord(uint32_t sync);
     int16_t configBleBeacon(uint8_t chan, const uint8_t* payload, size_t len);
-    int16_t getLoRaRxHeaderInfos(uint8_t* info);
     int16_t bleBeaconSend(uint8_t chan, const uint8_t* payload, size_t len);
 
     int16_t wifiScan(uint8_t type, uint16_t mask, uint8_t acqMode, uint8_t nbMaxRes, uint8_t nbScanPerChan, uint16_t timeout, uint8_t abortOnTimeout);

src/modules/LR11x0/LR11x0_commands.cpp

@@ -770,12 +770,18 @@ int16_t LR11x0::configBleBeacon(uint8_t chan, const uint8_t* payload, size_t len
   return(this->bleBeaconCommon(RADIOLIB_LR11X0_CMD_CONFIG_BLE_BEACON, chan, payload, len));
 }
 
-int16_t LR11x0::getLoRaRxHeaderInfos(uint8_t* info) {
+int16_t LR11x0::getLoRaRxHeaderInfo(uint8_t* cr, bool* hasCRC) {
+  // check if in explicit header mode
+  if(this->headerType == RADIOLIB_LR11X0_LORA_HEADER_IMPLICIT) {
+    return(RADIOLIB_ERR_WRONG_MODEM);
+  }
+
   uint8_t buff[1] = { 0 };
   int16_t state = this->SPIcommand(RADIOLIB_LR11X0_CMD_GET_LORA_RX_HEADER_INFOS, false, buff, sizeof(buff));
 
   // pass the replies
-  if(info) { *info = buff[0]; }
+  if(cr) { *cr = (buff[0] & 0x70) >> 4; }
+  if(hasCRC) { *hasCRC = (buff[0] & RADIOLIB_LR11X0_LAST_HEADER_CRC_ENABLED) != 0; }
 
   return(state);
 }