#include "EEPROM.h"
#include "cc1101.h"

//Arduino   GND            <->       CC1101 GND
//Arduino   VCC (+3.3v)  <->       CC1101 VCC
//Arduino   10               <->       CC1101 CSN (SS)
//Arduino   11               <->       CC1101 SI (MOSI)
//Arduino   12               <->       CC1101 SO (MISO)
//Arduino   13            <->       CC1101 SCK
//Arduino   02               <->       CC1101 GD0 


#define LEDOUTPUT 7

// The connection to the hardware chip CC1101 the RF Chip
CC1101 cc1101;

byte b;
byte syncWord = 199;

// a flag that a wireless packet has been received
boolean packetAvailable = false;        

void blinker(){
     digitalWrite(LEDOUTPUT, HIGH);
     delay(100);
     digitalWrite(LEDOUTPUT, LOW);
     delay(100);
}

/**
* Handle interrupt from CC1101 (INT0)
*/
void cc1101signalsInterrupt(void){
 // set the flag that a package is available
 packetAvailable = true;
}

void setup()
{
 Serial.begin(9600);
 Serial.println("start");

 // setup the blinker output
 pinMode(LEDOUTPUT, OUTPUT);
 digitalWrite(LEDOUTPUT, LOW);

 // blink once to signal the setup
 blinker();
 //cc1101.reset();
 // initialize the RF Chip
 Serial.println("before init");

 cc1101.init();
 Serial.println("after init");

 cc1101.reset();
 Serial.println("after reset");

 cc1101.setSyncWord(&syncWord, false);
 cc1101.setCarrierFreq(433.92);
 //cc1101.setCarrierFreq(CFREQ_868); 
 cc1101.disableAddressCheck();
 
  Serial.print("CC1101_PARTNUM ");
 b=cc1101.readReg(CC1101_PARTNUM, CC1101_STATUS_REGISTER);
 Serial.println(b);
 b=cc1101.readReg(CC1101_VERSION, CC1101_STATUS_REGISTER);
 Serial.print("CC1101_VERSION ");
 Serial.println(b);  
 Serial.print("CC1101_MARCSTATE ");
 Serial.println(cc1101.readReg(CC1101_MARCSTATE, CC1101_STATUS_REGISTER)& 0x1f);

 attachInterrupt(0, cc1101signalsInterrupt, FALLING);
 Serial.println("device initialized");

 Serial.println("setup done");
}

void loop()
{
 if(packetAvailable){
   Serial.println("packet received");
   // Disable wireless reception interrupt
   detachInterrupt(0);

   // clear the flag
   packetAvailable = false;
   
   CCPACKET packet;
 
   if(cc1101.receiveData(&packet) > 0){
     if(!packet.crc_ok) {
       Serial.println("crc not ok");
     } else {
      Serial.println("crc Ok");
     }
     if(packet.crc_ok && packet.length > 0){
       Serial.print("packet: len");
       Serial.print(packet.length);
       Serial.print(" data0: ");
       Serial.println(packet.data[0]);
     }
   }
   
   // Enable wireless reception interrupt
   attachInterrupt(0, cc1101signalsInterrupt, FALLING);
 }
}