
// Simple test of USB Host Mouse/Keyboard
//
// This example is in the public domain

#include "USBHost_t36.h"
//#include "debug_tt.h"

USBHost myusb;
USBHub hub1(myusb);
USBHub hub2(myusb);
USBHIDParser hid1(myusb);
USBHIDParser hid2(myusb);
USBHIDParser hid3(myusb);
USBHIDParser hid4(myusb);
USBHIDParser hid5(myusb);
JoystickController joystick1(myusb);
//BluetoothController bluet(myusb, true, "0000");   // Version does pairing to device
BluetoothController bluet(myusb);   // version assumes it already was paired
int user_axis[64];
uint32_t buttons_prev = 0;
int hat_prev = 0;
uint32_t buttons;
RawHIDController rawhid1(myusb);
RawHIDController rawhid2(myusb, 0xffc90004);

USBDriver *drivers[] = {&hub1, &hub2, &joystick1, &bluet, &hid1, &hid2, &hid3, &hid4, &hid5};

#define CNT_DEVICES (sizeof(drivers)/sizeof(drivers[0]))
const char * driver_names[CNT_DEVICES] = {"Hub1", "Hub2", "JOY1D", "Bluet", "HID1" , "HID2", "HID3", "HID4", "HID5"};

bool driver_active[CNT_DEVICES] = {false, false, false, false};

// Lets also look at HID Input devices
USBHIDInput *hiddrivers[] = {&joystick1, &rawhid1, &rawhid2};

#define CNT_HIDDEVICES (sizeof(hiddrivers)/sizeof(hiddrivers[0]))
const char * hid_driver_names[CNT_DEVICES] = {"Joystick1", "RawHid1", "RawHid2"};

bool hid_driver_active[CNT_DEVICES] = {false, false, false};

BTHIDInput *bthiddrivers[] = {&joystick1};
#define CNT_BTHIDDEVICES (sizeof(bthiddrivers)/sizeof(bthiddrivers[0]))
const char * bthid_driver_names[CNT_HIDDEVICES] = {"joystick"};
bool bthid_driver_active[CNT_HIDDEVICES] = {false};


bool show_short_form_data = false;
bool show_raw_data = false;

uint8_t joystick_left_trigger_value = 0;
uint8_t joystick_right_trigger_value = 0;
uint64_t joystick_full_notify_mask = (uint64_t) - 1;

int psAxis[64];
int psAxis_prev[64];
bool first_joystick_message = true;
uint8_t last_bdaddr[6] = {0, 0, 0, 0, 0, 0};

// ps3 motion on USB does not do much, but see if we can pair it and maybe change
// color of bulb... 
uint32_t PS3_MOTION_timer = 0;
uint8_t  PS3_MOTION_tried_to_pair_state = 0;
#define PS3_MOTION_PERIOD 2500 // not sure yet what would be good period for this..

//=============================================================================
// Setup
//=============================================================================
void setup()
{

  Serial1.begin(2000000);
  while (!Serial) ; // wait for Arduino Serial Monitor

  Serial.println("\n\nUSB Host Testing - Joystick Bluetooth");
  if (CrashReport) Serial.print(CrashReport);
  myusb.begin();

  delay(2000);

  rawhid1.attachReceive(OnReceiveHidData);
  rawhid2.attachReceive(OnReceiveHidData);
}

//=============================================================================
// Loop
//=============================================================================
void loop()
{
  myusb.Task();

  if (Serial.available()) {
    int ch = Serial.read(); // get the first char.
    while (Serial.read() != -1) ;
    if ((ch == 'b') || (ch == 'B')) {
      Serial.println("Only notify on Basic Axis changes");
      joystick1.axisChangeNotifyMask(0x3ff);
    } else if ((ch == 'f') || (ch == 'F')) {
      Serial.println("Only notify on Full Axis changes");
      joystick1.axisChangeNotifyMask(joystick_full_notify_mask);

    } else {
      if (show_short_form_data) {
        show_short_form_data = false;
        Serial.println("\n*** Show Full Data mode ***");
      } else {
        show_short_form_data = true;
        Serial.println("\n*** Show short form mode ***");
      }
    }
  }
  // check to see if the device list has changed:
  UpdateActiveDeviceInfo();
  processPS3MotionTimer();

  if (joystick1.available()) {
    if (first_joystick_message) {
      Serial.printf("*** First Joystick message %x:%x ***\n",
                    joystick1.idVendor(), joystick1.idProduct());
      first_joystick_message = false;

      const uint8_t *psz = joystick1.manufacturer();
      if (psz && *psz) Serial.printf("  manufacturer: %s\n", psz);
      psz = joystick1.product();
      if (psz && *psz) Serial.printf("  product: %s\n", psz);
      psz = joystick1.serialNumber();
      if (psz && *psz) Serial.printf("  Serial: %s\n", psz);

      // lets try to reduce number of fields that update
      joystick1.axisChangeNotifyMask(0xFFFFFl);
    }

    for (uint8_t i = 0; i < 64; i++) {
      psAxis_prev[i] = psAxis[i]; 
      psAxis[i] = joystick1.getAxis(i);
    }
    switch (joystick1.joystickType()) {
      case JoystickController::UNKNOWN:
      case JoystickController::PS4:
        displayPS4Data();
        break;
      case JoystickController::PS3:
        displayPS3Data();
        break;
      case JoystickController::PS3_MOTION:
        displayPS3MotionData();
        break;
      case JoystickController::XBOXONE:
      case JoystickController::XBOX360:
        displayXBoxData();
        break;
      default:
        displayRawData();
        break;
    }
    //for (uint8_t i = 0; i < 24; i++) {
    //  Serial.printf(" %d:%d", i, psAxis[i]);
    //}
    //Serial.println();

    delay(100);
    joystick1.joystickDataClear();
  }

  // See if we have some RAW data
  if (rawhid1) {
    int ch;
    uint8_t buffer[64];
    uint8_t count_chars = 0;
    memset(buffer, 0, sizeof(buffer));
    if (Serial.available()) {
      while (((ch = Serial.read()) != -1) && (count_chars < sizeof(buffer))) {
        buffer[count_chars++] = ch;
      }
      rawhid1.sendPacket(buffer);
    }
  }
}

//=============================================================================
// UpdateActiveDeviceInfo
//=============================================================================
void UpdateActiveDeviceInfo() {
  
  for (uint8_t i = 0; i < CNT_DEVICES; i++) {
    if (*drivers[i] != driver_active[i]) {
      if (driver_active[i]) {
        Serial.printf("*** Device %s - disconnected ***\n", driver_names[i]);
        driver_active[i] = false;
      } else {
        Serial.printf("*** Device %s %x:%x - connected ***\n", driver_names[i], drivers[i]->idVendor(), drivers[i]->idProduct());
        driver_active[i] = true;

        const uint8_t *psz = drivers[i]->manufacturer();
        if (psz && *psz) Serial.printf("  manufacturer: %s\n", psz);
        psz = drivers[i]->product();
        if (psz && *psz) Serial.printf("  product: %s\n", psz);
        psz = drivers[i]->serialNumber();
        if (psz && *psz) Serial.printf("  Serial: %s\n", psz);

        if (drivers[i] == &bluet) {
          const uint8_t *bdaddr = bluet.myBDAddr();
          // remember it...
          Serial.printf("  BDADDR: %02X:%02X:%02X:%02X:%02X:%02X\n", bdaddr[5], bdaddr[4], bdaddr[3], bdaddr[2], bdaddr[1], bdaddr[0]);
          for (uint8_t i = 0; i < 6; i++) last_bdaddr[i] = bdaddr[i];
        }
      }
    }
  }

  for (uint8_t i = 0; i < CNT_HIDDEVICES; i++) {
    if (*hiddrivers[i] != hid_driver_active[i]) {
      if (hid_driver_active[i]) {
        Serial.printf("*** HID Device %s - disconnected ***\n", hid_driver_names[i]);
        hid_driver_active[i] = false;
      } else {
        Serial.printf("*** HID Device %s %x:%x - connected ***\n", hid_driver_names[i], hiddrivers[i]->idVendor(), hiddrivers[i]->idProduct());
        hid_driver_active[i] = true;

        const uint8_t *psz = hiddrivers[i]->manufacturer();
        if (psz && *psz) Serial.printf("  manufacturer: %s\n", psz);
        psz = hiddrivers[i]->product();
        if (psz && *psz) Serial.printf("  product: %s\n", psz);
        psz = hiddrivers[i]->serialNumber();
        if (psz && *psz) Serial.printf("  Serial: %s\n", psz);

        // See if this is our joystick object...
        if (hiddrivers[i] == &joystick1) {
          Serial.printf("  Joystick type: %d\n", joystick1.joystickType());
          if (joystick1.joystickType() == JoystickController::PS3_MOTION) {
            Serial.println("  PS3 Motion detected");
            PS3_MOTION_timer = millis();  // set time for last event
            PS3_MOTION_tried_to_pair_state = 0; 
          }
        }

      }
    }
  }
  // Then Bluetooth devices
  for (uint8_t i = 0; i < CNT_BTHIDDEVICES; i++) {
    if (*bthiddrivers[i] != bthid_driver_active[i]) {
      if (bthid_driver_active[i]) {
        Serial.printf("*** BTHID Device %s - disconnected ***\n", hid_driver_names[i]);
        bthid_driver_active[i] = false;
      } else {
        Serial.printf("*** BTHID Device %s %x:%x - connected ***\n", hid_driver_names[i], hiddrivers[i]->idVendor(), hiddrivers[i]->idProduct());
        bthid_driver_active[i] = true;

        const uint8_t *psz = bthiddrivers[i]->manufacturer();
        if (psz && *psz) Serial.printf("  manufacturer: %s\n", psz);
        psz = bthiddrivers[i]->product();
        if (psz && *psz) Serial.printf("  product: %s\n", psz);
        psz = bthiddrivers[i]->serialNumber();
        if (psz && *psz) Serial.printf("  Serial: %s\n", psz);
      }
    }
  }
}

//=============================================================================
// displayPS4Data
//=============================================================================
void displayPS4Data()
{

  buttons = joystick1.getButtons();

  // Hack to guess if connected direct or BT...
  int hat = bluet? psAxis[10] : psAxis[9];  // get hat - up/dwn buttons

  if (show_short_form_data) {
    // only if something changes we are interested in
    bool something_changed = (buttons != buttons_prev) || (hat != hat_prev) ||(psAxis[30] != psAxis_prev[30]);
    for (uint8_t i = 0; i<6; i++) {
      if (psAxis[i] != psAxis_prev[i]) {something_changed = true; break; }
    }
    if (something_changed) {
      Serial.printf("LX: %d, LY: %d, RX: %d, RY: %d", psAxis[0], psAxis[1], psAxis[2], psAxis[5]);
      Serial.printf(" L-Trig: %d, R-Trig: %d", psAxis[3], psAxis[4]);
      Serial.printf(" Buttons: %x, Hat: %x", buttons, hat);
      Serial.printf(" Battery Status: %d\n", ((psAxis[30] & ((1 << 4) - 1))*10));
    }
  } else {
    // Long form...
    Serial.printf("LX: %d, LY: %d, RX: %d, RY: %d \r\n", psAxis[0], psAxis[1], psAxis[2], psAxis[5]);
    Serial.printf("L-Trig: %d, R-Trig: %d\r\n", psAxis[3], psAxis[4]);
    Serial.printf("Buttons: %x Hat: %x\r\n", buttons, hat);
    Serial.printf("Battery Status: %d\n", ((psAxis[30] & ((1 << 4) - 1))*10));
    printAngles();
    Serial.println();
  }
  hat_prev = hat;
  uint8_t ltv;
  uint8_t rtv;

  ltv = psAxis[3];
  rtv = psAxis[4];

  if ((ltv != joystick_left_trigger_value) || (rtv != joystick_right_trigger_value)) {
    joystick_left_trigger_value = ltv;
    joystick_right_trigger_value = rtv;
    Serial.printf("Rumbling: %d, %d\r\n", ltv, rtv);
    joystick1.setRumble(ltv, rtv);
  }
   
  // See about maybe pair...
  if ((buttons & 0x100) && !(buttons_prev & 0x100) && (buttons & 0x30)) {
    // so far just try call temporary pair info call...
      uint8_t bdaddr_cur[10];
      Serial.print("\nPS4 Pairing Request");
      if (!last_bdaddr[0] && !last_bdaddr[1] && !last_bdaddr[2] && !last_bdaddr[3] && !last_bdaddr[4] && !last_bdaddr[5]) {
        Serial.println(" - failed - no Bluetooth adapter has been plugged in");
      } else {
        Serial.println("\n*** Try getting BT Pairing information ***");        
        if (!joystick1.PS4GetCurrentPairing(bdaddr_cur)) {
          Serial.println(" - failed - Could not read pairing information");
          } else {
            Serial.printf("Current BTADDR: %02X:%02X:%02X:%02X:%02X:%02X\n", bdaddr_cur[5],bdaddr_cur[4],bdaddr_cur[3],bdaddr_cur[2],bdaddr_cur[1],bdaddr_cur[0]);
            if (! joystick1.PS4Pair(last_bdaddr)) {
              Serial.println("  Pairing call Failed");
            } else {
              Serial.println("  Pairing complete (I hope), make sure Bluetooth adapter is plugged in and try PS4 without USB");
            }

          }
      }

  } else if (buttons != buttons_prev) {
      uint8_t lr = 0;
      uint8_t lg = 0;
      uint8_t lb = 0;
      if(buttons == 1){//Srq
        lr = 0xff;
      }
      if(buttons == 4){//Circ
        lg = 0xff;
      }
      if(buttons == 8){//Tri
        lb = 0xff;
      }
      
      Serial.print(buttons,HEX); Serial.print(", ");
      Serial.print(lr); Serial.print(", "); 
      Serial.print(lg); Serial.print(", "); 
      Serial.println(lb); 
      joystick1.setLEDs(lr, lg, lb);
  }
  buttons_prev = buttons;  

}

//=============================================================================
// displayPS3Data
//=============================================================================
void displayPS3Data()

{
  buttons = joystick1.getButtons();
  //buttons = psAxis[2] | ((uint16_t)psAxis[3] << 8);

  // Use L3 (Left joystick button) to toggle Show Raw or not...
  if ((buttons & 0x02) && !(buttons_prev & 0x02)) show_raw_data = !show_raw_data;
  if ((buttons & 0x04) && !(buttons_prev & 0x04)) show_short_form_data = !show_short_form_data;

  // See about maybe pair...
  if ((buttons & 0x10000) && !(buttons_prev & 0x10000) && (buttons & 0x0C01)) {
    // PS button just pressed and select button pressed act like PS4 share like...
    // Note: you can use either R1 or L1 with the PS button, to work with Sony Move Navigation...
    Serial.print("\nPS3 Pairing Request");
    if (!last_bdaddr[0] && !last_bdaddr[1] && !last_bdaddr[2] && !last_bdaddr[3] && !last_bdaddr[4] && !last_bdaddr[5]) {
      Serial.println(" - failed - no Bluetooth adapter has been plugged in");
    } else if (!hiddrivers[0]) {  // Kludge see if we are connected as HID?
      Serial.println(" - failed - PS3 device not plugged into USB");
    } else {
      Serial.printf(" - Attempt pair to: %02X:%02X:%02X:%02X:%02X:%02X\n", last_bdaddr[5], last_bdaddr[4], last_bdaddr[3], last_bdaddr[2], last_bdaddr[1], last_bdaddr[0]);

      if (! joystick1.PS3Pair(last_bdaddr)) {
        Serial.println("  Pairing call Failed");
      } else {
        Serial.println("  Pairing complete (I hope), make sure Bluetooth adapter is plugged in and try PS3 without USB");
      }
    }
  }


  if (show_raw_data)  {
    displayRawData();
  } else {
    Serial.printf("LX: %d, LY: %d, RX: %d, RY: %d \r\n", psAxis[0], psAxis[1], psAxis[2], psAxis[5]);
    Serial.printf("L-Trig: %d, R-Trig: %d\r\n", psAxis[3], psAxis[4]);
    Serial.printf("Buttons: %x\r\n", buttons);
  }
  uint8_t ltv;
  uint8_t rtv;

  ltv = psAxis[3];
  rtv = psAxis[4];

  if ((ltv != joystick_left_trigger_value) || (rtv != joystick_right_trigger_value)) {
    joystick_left_trigger_value = ltv;
    joystick_right_trigger_value = rtv;
    Serial.printf("Rumbling: %d, %d\r\n", ltv, rtv);
    joystick1.setRumble(ltv, rtv);
  }

  if (buttons != buttons_prev) {
    uint8_t leds = 0;
    if (buttons & 0x8000) leds = 1;   //Srq
    if (buttons & 0x2000) leds = 2;   //Cir
    if (buttons & 0x1000) leds = 3;   //Tri
    //Cross = 2
    joystick1.setLEDs(leds);
    buttons_prev = buttons;
  }
}
//=============================================================================
// displayPS3MotionData
//=============================================================================
void displayPS3MotionData()

{
  buttons = joystick1.getButtons();

  // Hard to know what is best here. for now just copy raw data over... 
  // will do this for now... Format of thought to be data.
  //  data[1-3] Buttons (mentioned 4 as well but appears to be counter
  // axis[0-1] data[5] Trigger, Previous trigger value
  // 2-5 Unknown probably place holders for Axis like data for other PS3
  // 6 - Time stamp
  // 7 - Battery
  // 8-19 - Accel: XL, XH, YL, YH, ZL, ZH, XL2, XH2, YL2, YH2, ZL2, ZH2
  // 20-31 - Gyro: Xl,Xh,Yl,Yh,Zl,Zh,Xl2,Xh2,Yl2,Yh2,Zl2,Zh2
  // 32 - Temp High
  // 33 - Temp Low (4 bits)  Maybe Magneto x High on other?? 

  // Use Select button to choose raw or not
  if ((buttons & 0x01) && !(buttons_prev & 0x01)) show_raw_data = !show_raw_data;
  if ((buttons & 0x04) && !(buttons_prev & 0x04)) show_short_form_data = !show_short_form_data;

  if (show_raw_data)  {
    displayRawData();
  } else {
    uint64_t changed_mask = joystick1.axisChangedMask();
    Serial.printf("Changed: %08x Buttons: %x: Trig: %d\r\n", (uint32_t)changed_mask, buttons, psAxis[0]);
    Serial.printf("Battery Status: %d\n", psAxis[7]);
    printPS3MotionAngles();
    Serial.println();
  }

  uint8_t ltv = psAxis[0];

  if ((ltv != joystick_left_trigger_value) ) {
    joystick_left_trigger_value = ltv;
    Serial.printf("Rumbling: %d\r\n", ltv);
    joystick1.setRumble(ltv, 0);
  }

  if (buttons != buttons_prev) {
    uint8_t ledsR = (buttons & 0x8000)? 0xff : 0;   //Srq
    uint8_t ledsG = (buttons & 0x2000)? 0xff : 0;   //Cir
    uint8_t ledsB = (buttons & 0x1000)? 0xff : 0;   //Tri
    Serial.printf("Set Leds %x %x %x\r\n", ledsR, ledsG, ledsB );
    joystick1.setLEDs(ledsR, ledsG, ledsB);
    buttons_prev = buttons;
  }
}

//=============================================================================
// displayXBoxData
//=============================================================================
void displayXBoxData()
{
  buttons = joystick1.getButtons();

  // Use L3 (Left joystick button) to toggle Show Raw or not...
  if ((buttons & 0x4000) && !(buttons_prev & 0x4000)) show_raw_data = !show_raw_data;
  if ((buttons & 0x8000) && !(buttons_prev & 0x8000)) show_short_form_data = !show_short_form_data;

  if (show_raw_data)  {
    displayRawData();
  } else {
    Serial.printf("LX: %d, LY: %d, RX: %d, RY: %d \r\n", psAxis[0], psAxis[1], psAxis[2], psAxis[5]);
    Serial.printf("L-Trig: %d, R-Trig: %d\r\n", psAxis[3], psAxis[4]);
    Serial.printf("Buttons: %x\r\n", buttons);
  }
  uint8_t ltv;
  uint8_t rtv;

  ltv = psAxis[3];
  rtv = psAxis[4];

  if ((ltv != joystick_left_trigger_value) || (rtv != joystick_right_trigger_value)) {
    joystick_left_trigger_value = ltv;
    joystick_right_trigger_value = rtv;
    Serial.printf("Rumbling: %d, %d\r\n", ltv, rtv);
    joystick1.setRumble(ltv, rtv);
  }

  if (buttons != buttons_prev) {
    uint8_t leds = 0;
    if (buttons & 0x8000) leds = 1;   //Srq
    if (buttons & 0x2000) leds = 2;   //Cir
    if (buttons & 0x1000) leds = 3;   //Tri
    //Cross = 2
    joystick1.setLEDs(leds);
    buttons_prev = buttons;
  }
}

//=============================================================================
// displayRawData
//=============================================================================
void displayRawData() {
  uint64_t axis_mask = joystick1.axisMask();
  uint64_t changed_mask = joystick1.axisChangedMask();

  buttons = joystick1.getButtons();

  if (!changed_mask && (buttons == buttons_prev)) return;

  if (show_short_form_data) {
    if (!changed_mask) return;
    changed_mask &= 0xfffffffffL; // try reducing which ones show...
    Serial.printf("%0x - ", joystick1.getButtons());

    for (uint16_t index = 0; changed_mask; index++) {
      if (changed_mask & 1) {
        Serial.printf("%d:%02x ", index, psAxis[index]);
      }
      changed_mask >>= 1;
    }

  } else {
    axis_mask &= 0xffffff;
    Serial.printf("%06x%06x: %06x - ", (uint32_t)(changed_mask >> 32), (uint32_t)(changed_mask & 0xffffffff), joystick1.getButtons());

    for (uint16_t index = 0; axis_mask; index++) {
      Serial.printf("%02x ", psAxis[index]);
      axis_mask >>= 1;
    }
  }
  Serial.println();
  buttons_prev = buttons;

}


//=============================================================================
// OnReceiveHidData
//=============================================================================
bool OnReceiveHidData(uint32_t usage, const uint8_t *data, uint32_t len) {
  // Called for maybe both HIDS for rawhid basic test.  One is for the Teensy
  // to output to Serial. while still having Raw Hid...
  if (usage == 0xffc90004) {
    // Lets trim off trailing null characters.
    while ((len > 0) && (data[len - 1] == 0)) {
      len--;
    }
    if (len) {
      Serial.print("RawHid Serial: ");
      Serial.write(data, len);
    }
  } else {
    Serial.print("RawHID data: ");
    Serial.println(usage, HEX);
    while (len) {
      uint8_t cb = (len > 16) ? 16 : len;
      const uint8_t *p = data;
      uint8_t i;
      for (i = 0; i < cb; i++) {
        Serial.printf("%02x ", *p++);
      }
      Serial.print(": ");
      for (i = 0; i < cb; i++) {
        Serial.write(((*data >= ' ') && (*data <= '~')) ? *data : '.');
        data++;
      }
      len -= cb;
      Serial.println();
    }
  }

  return true;
}

//=============================================================================
// processPS3MotionTimer
//=============================================================================
static const uint32_t PS3_MOTION_colors[] = {0, 0xff, 0xff00, 0xff0000, 0xffff, 0xff00ff, 0xffff00, 0xffffff};

uint8_t PS3_MOTION_colors_index = 0;

void processPS3MotionTimer() {
  // See if we have a PS3_MOTION connected and we have run for a certain amount of time

  if (PS3_MOTION_timer && ((millis()-PS3_MOTION_timer) >= PS3_MOTION_PERIOD)) {
    Serial.println("PS3 Motion Timer"); Serial.flush();
    if (joystick1) {
      PS3_MOTION_timer = millis(); // joystick not there any more...

      // We will first try to set feedback color for the PS3, maybe alternate colors
      if (++PS3_MOTION_colors_index >= sizeof(PS3_MOTION_colors)/sizeof(PS3_MOTION_colors[0])) PS3_MOTION_colors_index = 0;
      joystick1.setLEDs(PS3_MOTION_colors[PS3_MOTION_colors_index]);

      // Next see if we can try to pair.
      if (PS3_MOTION_tried_to_pair_state == 0) {
        Serial.println("PS3_MOTION Connected");
        if (!last_bdaddr[0] && !last_bdaddr[1] && !last_bdaddr[2] && !last_bdaddr[3] && !last_bdaddr[4] && !last_bdaddr[5]) {
          Serial.println(" - No Bluetooth adapter has been plugged in - so will not try to pair");
          PS3_MOTION_tried_to_pair_state = 1;
        }
      } 
      if ((PS3_MOTION_tried_to_pair_state < 2)  &&
          (last_bdaddr[0] || last_bdaddr[1] || last_bdaddr[2] || last_bdaddr[3] || last_bdaddr[4] || last_bdaddr[5])) {
        Serial.println("  - Bluetooth device detected, will try to pair");
        // Lets try to pair
        if (! joystick1.PS3Pair(last_bdaddr)) {
          Serial.println(" - Pairing call Failed");
        } else {
          Serial.println(" - Pairing complete (I hope), make sure Bluetooth adapter is plugged in and try PS3 without USB");
        }
        PS3_MOTION_tried_to_pair_state = 2; // don't try again...
      }
    }  else {
      Serial.println("PS3 Motion Joystick no longer detected");
      PS3_MOTION_timer = 0; // joystick not there any more...
    }
  }
}
