@Override
public void onReceive(Context arg0, Intent arg1) {
if (arg1.getAction().equals(ACTION_USB_PERMISSION)) {
boolean granted = arg1.getExtras().getBoolean(UsbManager.EXTRA_PERMISSION_GRANTED);
if (granted) // User accepted our USB connection. Try to open the device as a serial
// port
{
Intent intent = new Intent(ACTION_USB_PERMISSION_GRANTED);
arg0.sendBroadcast(intent);
connection = usbManager.openDevice(device);
serialPortConnected = true;
new ConnectionThread().run();
} else // User not accepted our USB connection. Send an Intent to the Main Activity
{
Intent intent = new Intent(ACTION_USB_PERMISSION_NOT_GRANTED);
arg0.sendBroadcast(intent);
}
} else if (arg1.getAction().equals(ACTION_USB_ATTACHED)) {
if (!serialPortConnected)
findSerialPortDevice(); // A USB device has been attached. Try to open it as a Serial
// port
} else if (arg1.getAction().equals(ACTION_USB_DETACHED)) {
// Usb device was disconnected. send an intent to the Main Activity
Intent intent = new Intent(ACTION_USB_DISCONNECTED);
arg0.sendBroadcast(intent);
serialPortConnected = false;
serialPort.close();
}
}
@Override
public void run() {
serialPort = UsbSerialDevice.createUsbSerialDevice(device, connection);
if (serialPort != null) {
if (serialPort.open()) {
serialPort.setBaudRate(BAUD_RATE);
serialPort.setDataBits(UsbSerialInterface.DATA_BITS_8);
serialPort.setStopBits(UsbSerialInterface.STOP_BITS_1);
serialPort.setParity(UsbSerialInterface.PARITY_NONE);
serialPort.setFlowControl(UsbSerialInterface.FLOW_CONTROL_OFF);
serialPort.read(mCallback);
// Everything went as expected. Send an intent to MainActivity
Intent intent = new Intent(ACTION_USB_READY);
context.sendBroadcast(intent);
} else {
// Serial port could not be opened, maybe an I/O error or if CDC driver was chosen, it
// does not really fit
// Send an Intent to Main Activity
if (serialPort instanceof CDCSerialDevice) {
Intent intent = new Intent(ACTION_CDC_DRIVER_NOT_WORKING);
context.sendBroadcast(intent);
} else {
Intent intent = new Intent(ACTION_USB_DEVICE_NOT_WORKING);
context.sendBroadcast(intent);
}
}
} else {
// No driver for given device, even generic CDC driver could not be loaded
Intent intent = new Intent(ACTION_USB_NOT_SUPPORTED);
context.sendBroadcast(intent);
}
}
public void setDevice(UsbManager usbManager, UsbDevice usbDevice) {
// Log.d(TAG, "setDevice " + usbDevice);
device = usbDevice;
if (device != null) {
usbDeviceDump(usbDevice);
UsbInterface controlInterface = device.getInterface(1);
endpoint = controlInterface.getEndpoint(0);
UsbDeviceConnection connection = usbManager.openDevice(device);
if (connection != null && connection.claimInterface(controlInterface, true)) {
controlConnection = connection;
serial = UsbSerialDevice.createUsbSerialDevice(device, controlConnection);
boolean t = serial.open();
Log.d("Set DEVICE : ", "" + t);
serial.setBaudRate(9600);
serial.setParity(UsbSerialInterface.PARITY_NONE);
serial.setStopBits(UsbSerialInterface.STOP_BITS_1);
serial.setDataBits(UsbSerialInterface.DATA_BITS_8);
} else {
Log.e(TAG, "open connection FAIL");
controlConnection = null;
}
}
}
public void explicitSend(byte[] a) {
// serial.write(a);
if (a != null && serial != null) {
Log.d("MAESTRO: SEND: ", HexData.hexToString(a));
// serial.syncWrite(a, 5000);
// serial.syncRead(buffer, 5000);
serial.write(a);
try {
Thread.sleep(200);
} catch (InterruptedException e) {
e.printStackTrace();
}
// Log.d("MAESTRO: ", String.valueOf(i));
}
}
/*
* This function will be called from MainActivity to write data through Serial Port
*/
public void write(byte[] data) {
if (serialPort != null) serialPort.write(data);
}