#include <Usb.h>
#include <SPP.h>

USBHost usb;
BTD btd(&usb,"Arduino Due","0000");
SPP spp(&btd);

#define TC35_IGN 12
#define TC35S Serial3
#define TC35_RX 0 
#define TC35_TX 1
#define TC35_RI 5
#define TC35_CTS 4
#define TC35_RTS 3
#define TC35_DSR 13
#define TC35_DTR 2
#define CONSOLE Serial

#define ARDUINO_BAUDRATE 115200 

void sppEvent();

void serialEventRun(void) {
  if (spp.available())
    sppEvent();
  if (CONSOLE.available()) 
    serialEvent();
  if (Serial1.available()) 
    serialEvent1();
}

void sppEvent() {
  // Put characters from Bluetooth SPP into Serial1
  int c;
  while (spp.available()) {
    c = spp.read();
    if ( 0 > c ) break;
    Serial1.write(c);
    // CONSOLE.write(c);
  }
}

void serialEvent() {
  // Push characters from terminal onto listening ports
  int c;
  while(CONSOLE.available()) {
    c = CONSOLE.read();
    if ( 0 > c ) break;
    // Serial1.write(c);
    spp.write(c);
  }
}

void serialEvent1() {
  int c;
  while (Serial1.available()) {
    c = Serial1.read();
    if ( 0 > c ) break;
    spp.write(c);
    // CONSOLE.write(c);
  }
}

void serialEvent3() {// {{{
}// }}}

#define LED 13
#define RXLED 72
#define TXLED 73

void setup() { // {{{

  pinMode(LED,OUTPUT);
  pinMode(RXLED,OUTPUT);
  pinMode(TXLED,OUTPUT);
  pinMode(TC35_IGN,OUTPUT);
  pinMode(TC35_RI,INPUT);
  pinMode(TC35_CTS,INPUT);
  pinMode(TC35_RTS,OUTPUT);
  pinMode(TC35_DSR,INPUT);
  pinMode(TC35_DTR,OUTPUT);

  digitalWrite(TC35_RTS,HIGH);
  digitalWrite(TC35_DTR,HIGH);
  digitalWrite(LED,LOW);

  Serial1.begin(115200);
  CONSOLE.begin( ARDUINO_BAUDRATE );

  Serial.println("Arduino Due - Bluetooth SPP\r\n");

  spp.Initialize(&btd);

}// }}}

void loop() { // {{{
  usb.Task();
  digitalWrite(TXLED,usb.getNakFlag() | usb.getErrFlag() ? HIGH : LOW);
}// }}}