Line data    Source code

       1             : #include "SX1273.h"
       2             : #if !RADIOLIB_EXCLUDE_SX127X
       3             : 
       4           1 : SX1273::SX1273(Module* mod) : SX1272(mod) {
       5             : 
       6           1 : }
       7             : 
       8           0 : int16_t SX1273::begin(float freq, float bw, uint8_t sf, uint8_t cr, uint8_t syncWord, int8_t power, uint16_t preambleLength, uint8_t gain) {
       9             :   // execute common part
      10           0 :   uint8_t version = RADIOLIB_SX1272_CHIP_VERSION;
      11           0 :   int16_t state = SX127x::begin(&version, 1, syncWord, preambleLength);
      12           0 :   RADIOLIB_ASSERT(state);
      13             : 
      14             :   // configure publicly accessible settings
      15           0 :   state = setBandwidth(bw);
      16           0 :   RADIOLIB_ASSERT(state);
      17             : 
      18           0 :   state = setFrequency(freq);
      19           0 :   RADIOLIB_ASSERT(state);
      20             : 
      21           0 :   state = setSpreadingFactor(sf);
      22           0 :   RADIOLIB_ASSERT(state);
      23             : 
      24           0 :   state = setCodingRate(cr);
      25           0 :   RADIOLIB_ASSERT(state);
      26             : 
      27           0 :   state = setOutputPower(power);
      28           0 :   RADIOLIB_ASSERT(state);
      29             : 
      30           0 :   state = setGain(gain);
      31           0 :   RADIOLIB_ASSERT(state);
      32             : 
      33             :   // set publicly accessible settings that are not a part of begin method
      34           0 :   state = setCRC(true);
      35           0 :   RADIOLIB_ASSERT(state);
      36             : 
      37           0 :   return(state);
      38             : }
      39             : 
      40           1 : int16_t SX1273::setSpreadingFactor(uint8_t sf) {
      41             :   uint8_t newSpreadingFactor;
      42             : 
      43             :   // check allowed spreading factor values
      44           1 :   switch(sf) {
      45           0 :     case 6:
      46           0 :       newSpreadingFactor = RADIOLIB_SX127X_SF_6;
      47           0 :       break;
      48           0 :     case 7:
      49           0 :       newSpreadingFactor = RADIOLIB_SX127X_SF_7;
      50           0 :       break;
      51           0 :     case 8:
      52           0 :       newSpreadingFactor = RADIOLIB_SX127X_SF_8;
      53           0 :       break;
      54           0 :     case 9:
      55           0 :       newSpreadingFactor = RADIOLIB_SX127X_SF_9;
      56           0 :       break;
      57           1 :     default:
      58           1 :       return(RADIOLIB_ERR_INVALID_SPREADING_FACTOR);
      59             :   }
      60             : 
      61             :   // set spreading factor and if successful, save the new setting
      62           0 :   int16_t state = setSpreadingFactorRaw(newSpreadingFactor);
      63           0 :   if(state == RADIOLIB_ERR_NONE) {
      64           0 :     SX127x::spreadingFactor = sf;
      65             :   }
      66             : 
      67           0 :   return(state);
      68             : }
      69             : 
      70           1 : int16_t SX1273::setDataRate(DataRate_t dr, ModemType_t modem) {
      71             :   // get the current modem
      72             :   ModemType_t currentModem;
      73           1 :   int16_t state = this->getModem(&currentModem);
      74           1 :   RADIOLIB_ASSERT(state);
      75             : 
      76             :   // switch over if the requested modem is different
      77           1 :   if(modem != RADIOLIB_MODEM_NONE && modem != currentModem) {
      78           0 :     state = this->standby();
      79           0 :     RADIOLIB_ASSERT(state);
      80           0 :     state = this->setModem(modem);
      81           0 :     RADIOLIB_ASSERT(state);
      82             :   }
      83             : 
      84           1 :   if(modem == RADIOLIB_MODEM_NONE) {
      85           1 :     modem = currentModem;
      86             :   }
      87             : 
      88             :   // select interpretation based on modem
      89           1 :   if(modem == RADIOLIB_MODEM_FSK) {
      90             :     // set the bit rate
      91           0 :     state = this->setBitRate(dr.fsk.bitRate);
      92           0 :     RADIOLIB_ASSERT(state);
      93             : 
      94             :     // set the frequency deviation
      95           0 :     state = this->setFrequencyDeviation(dr.fsk.freqDev);
      96             : 
      97           1 :   } else if(modem == RADIOLIB_MODEM_LORA) {
      98             :     // set the spreading factor
      99           1 :     state = this->setSpreadingFactor(dr.lora.spreadingFactor);
     100           1 :     RADIOLIB_ASSERT(state);
     101             : 
     102             :     // set the bandwidth
     103           0 :     state = this->setBandwidth(dr.lora.bandwidth);
     104             :   }
     105             : 
     106           0 :   return(state);
     107             : }
     108             : 
     109           1 : int16_t SX1273::checkDataRate(DataRate_t dr, ModemType_t modem) {
     110           1 :   int16_t state = RADIOLIB_ERR_UNKNOWN;
     111             : 
     112             :   // retrieve modem if not supplied
     113           1 :   if(modem == RADIOLIB_MODEM_NONE) {
     114           1 :     state = this->getModem(&modem);
     115           1 :     RADIOLIB_ASSERT(state);
     116             :   }
     117             : 
     118             :   // select interpretation based on modem
     119           1 :   if(modem == RADIOLIB_MODEM_FSK) {
     120           0 :     RADIOLIB_CHECK_RANGE(dr.fsk.bitRate, 0.5f, 300.0f, RADIOLIB_ERR_INVALID_BIT_RATE);
     121           0 :     if(!((dr.fsk.freqDev + dr.fsk.bitRate/2.0f <= 250.0f) && (dr.fsk.freqDev <= 200.0f))) {
     122           0 :       return(RADIOLIB_ERR_INVALID_FREQUENCY_DEVIATION);
     123             :     }
     124           0 :     return(RADIOLIB_ERR_NONE);
     125             : 
     126           1 :   } else if(modem == RADIOLIB_MODEM_LORA) {
     127           1 :     RADIOLIB_CHECK_RANGE(dr.lora.spreadingFactor, 6, 9, RADIOLIB_ERR_INVALID_SPREADING_FACTOR);
     128           0 :     RADIOLIB_CHECK_RANGE(dr.lora.bandwidth, 100.0f, 510.0f, RADIOLIB_ERR_INVALID_BANDWIDTH);
     129           0 :     RADIOLIB_CHECK_RANGE(dr.lora.codingRate, 4, 8, RADIOLIB_ERR_INVALID_CODING_RATE);
     130           0 :     return(RADIOLIB_ERR_NONE);
     131             :   
     132             :   }
     133             : 
     134           0 :   return(state);
     135             : }
     136             : 
     137           1 : int16_t SX1273::setModem(ModemType_t modem) {
     138           1 :   switch(modem) {
     139           0 :     case(ModemType_t::RADIOLIB_MODEM_LORA): {
     140           0 :       return(this->begin());
     141             :     } break;
     142           0 :     case(ModemType_t::RADIOLIB_MODEM_FSK): {
     143           0 :       return(this->beginFSK());
     144             :     } break;
     145           1 :     default:
     146           1 :       return(RADIOLIB_ERR_WRONG_MODEM);
     147             :   }
     148             : }
     149             : 
     150             : #endif