kopia lustrzana https://github.com/felHR85/UsbSerial
310 wiersze
13 KiB
Java
310 wiersze
13 KiB
Java
package com.felhr.integrationapp;
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import android.app.PendingIntent;
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import android.app.Service;
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import android.content.BroadcastReceiver;
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import android.content.Context;
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import android.content.Intent;
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import android.content.IntentFilter;
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import android.hardware.usb.UsbDevice;
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import android.hardware.usb.UsbDeviceConnection;
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import android.hardware.usb.UsbManager;
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import android.os.Binder;
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import android.os.Handler;
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import android.os.IBinder;
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import android.util.Log;
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import com.felhr.usbserial.CDCSerialDevice;
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import com.felhr.usbserial.UsbSerialDevice;
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import com.felhr.usbserial.UsbSerialInterface;
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import java.util.HashMap;
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import java.util.Map;
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import okio.Buffer;
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/**
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* Created by Felipe Herranz(felhr85@gmail.com) on 2019-07-04.
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*/
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public class UsbSyncService extends Service {
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public static final String TAG = "UsbService";
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private static final int SIZE_TEST_1 = 1024;
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private static final int SIZE_TEST_2 = 2048;
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private static final int SIZE_TEST_3 = 16384;
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private static final String TEST_1 = "test1";
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private static final String TEST_2 = "test2";
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private static final String TEST_3 = "test3";
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private static final String TEST_4 = "test4";
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private static final String TEST_5 = "test5";
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private static final int BUFFER_SYNC = 100;
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public static final String ACTION_USB_READY = "com.felhr.connectivityservices.USB_READY";
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public static final String ACTION_USB_ATTACHED = "android.hardware.usb.action.USB_DEVICE_ATTACHED";
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public static final String ACTION_USB_DETACHED = "android.hardware.usb.action.USB_DEVICE_DETACHED";
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public static final String ACTION_USB_NOT_SUPPORTED = "com.felhr.usbservice.USB_NOT_SUPPORTED";
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public static final String ACTION_NO_USB = "com.felhr.usbservice.NO_USB";
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public static final String ACTION_USB_PERMISSION_GRANTED = "com.felhr.usbservice.USB_PERMISSION_GRANTED";
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public static final String ACTION_USB_PERMISSION_NOT_GRANTED = "com.felhr.usbservice.USB_PERMISSION_NOT_GRANTED";
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public static final String ACTION_USB_DISCONNECTED = "com.felhr.usbservice.USB_DISCONNECTED";
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public static final String ACTION_CDC_DRIVER_NOT_WORKING = "com.felhr.connectivityservices.ACTION_CDC_DRIVER_NOT_WORKING";
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public static final String ACTION_USB_DEVICE_NOT_WORKING = "com.felhr.connectivityservices.ACTION_USB_DEVICE_NOT_WORKING";
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public static final int MESSAGE_TEST_1 = 0;
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public static final int MESSAGE_TEST_2 = 1;
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public static final int MESSAGE_TEST_3 = 2;
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private static final String ACTION_USB_PERMISSION = "com.android.example.USB_PERMISSION";
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private static final int BAUD_RATE = 115200; // BaudRate. Change this value if you need
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public static boolean SERVICE_CONNECTED = false;
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private IBinder binder = new UsbSyncService.UsbBinder();
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private Context context;
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private Handler mHandler;
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private UsbManager usbManager;
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private UsbDevice device;
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private UsbDeviceConnection connection;
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private UsbSerialDevice serialPort;
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private Buffer buffer = new Buffer();
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private String mode;
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private ReadThread readThread;
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private boolean serialPortConnected;
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/*
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* Different notifications from OS will be received here (USB attached, detached, permission responses...)
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* About BroadcastReceiver: http://developer.android.com/reference/android/content/BroadcastReceiver.html
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*/
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private final BroadcastReceiver usbReceiver = new BroadcastReceiver() {
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@Override
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public void onReceive(Context arg0, Intent arg1) {
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if (arg1.getAction().equals(ACTION_USB_PERMISSION)) {
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boolean granted = arg1.getExtras().getBoolean(UsbManager.EXTRA_PERMISSION_GRANTED);
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if (granted) // User accepted our USB connection. Try to open the device as a serial port
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{
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Intent intent = new Intent(ACTION_USB_PERMISSION_GRANTED);
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arg0.sendBroadcast(intent);
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connection = usbManager.openDevice(device);
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new ConnectionThread().start();
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} else // User not accepted our USB connection. Send an Intent to the Main Activity
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{
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Intent intent = new Intent(ACTION_USB_PERMISSION_NOT_GRANTED);
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arg0.sendBroadcast(intent);
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}
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} else if (arg1.getAction().equals(ACTION_USB_ATTACHED)) {
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if (!serialPortConnected)
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findSerialPortDevice(); // A USB device has been attached. Try to open it as a Serial port
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} else if (arg1.getAction().equals(ACTION_USB_DETACHED)) {
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// Usb device was disconnected. send an intent to the Main Activity
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Intent intent = new Intent(ACTION_USB_DISCONNECTED);
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arg0.sendBroadcast(intent);
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if (serialPortConnected) {
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serialPort.syncClose();
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}
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serialPortConnected = false;
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}
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}
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};
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/*
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* onCreate will be executed when service is started. It configures an IntentFilter to listen for
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* incoming Intents (USB ATTACHED, USB DETACHED...) and it tries to open a serial port.
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*/
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@Override
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public void onCreate() {
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this.context = this;
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serialPortConnected = false;
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UsbService.SERVICE_CONNECTED = true;
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setFilter();
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usbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
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findSerialPortDevice();
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mode = TEST_1;
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}
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/* MUST READ about services
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* http://developer.android.com/guide/components/services.html
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* http://developer.android.com/guide/components/bound-services.html
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*/
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@Override
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public IBinder onBind(Intent intent) {
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return binder;
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}
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@Override
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public int onStartCommand(Intent intent, int flags, int startId) {
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return Service.START_NOT_STICKY;
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}
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@Override
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public void onDestroy() {
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super.onDestroy();
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serialPort.close();
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unregisterReceiver(usbReceiver);
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UsbService.SERVICE_CONNECTED = false;
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}
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public void setHandler(Handler mHandler) {
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this.mHandler = mHandler;
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}
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private void findSerialPortDevice() {
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// This snippet will try to open the first encountered usb device connected, excluding usb root hubs
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HashMap<String, UsbDevice> usbDevices = usbManager.getDeviceList();
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if (!usbDevices.isEmpty()) {
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// first, dump the hashmap for diagnostic purposes
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for (Map.Entry<String, UsbDevice> entry : usbDevices.entrySet()) {
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device = entry.getValue();
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Log.d(TAG, String.format("USBDevice.HashMap (vid:pid) (%X:%X)-%b class:%X:%X name:%s",
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device.getVendorId(), device.getProductId(),
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UsbSerialDevice.isSupported(device),
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device.getDeviceClass(), device.getDeviceSubclass(),
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device.getDeviceName()));
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}
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for (Map.Entry<String, UsbDevice> entry : usbDevices.entrySet()) {
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device = entry.getValue();
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int deviceVID = device.getVendorId();
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int devicePID = device.getProductId();
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// if (deviceVID != 0x1d6b && (devicePID != 0x0001 && devicePID != 0x0002 && devicePID != 0x0003) && deviceVID != 0x5c6 && devicePID != 0x904c) {
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if (UsbSerialDevice.isSupported(device)) {
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// There is a supported device connected - request permission to access it.
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requestUserPermission();
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break;
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} else {
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connection = null;
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device = null;
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}
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}
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if (device==null) {
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// There are no USB devices connected (but usb host were listed). Send an intent to MainActivity.
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Intent intent = new Intent(ACTION_NO_USB);
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sendBroadcast(intent);
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}
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} else {
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Log.d(TAG, "findSerialPortDevice() usbManager returned empty device list." );
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// There is no USB devices connected. Send an intent to MainActivity
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Intent intent = new Intent(ACTION_NO_USB);
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sendBroadcast(intent);
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}
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}
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private void setFilter() {
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IntentFilter filter = new IntentFilter();
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filter.addAction(ACTION_USB_PERMISSION);
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filter.addAction(ACTION_USB_DETACHED);
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filter.addAction(ACTION_USB_ATTACHED);
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registerReceiver(usbReceiver, filter);
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}
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/*
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* Request user permission. The response will be received in the BroadcastReceiver
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*/
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private void requestUserPermission() {
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Log.d(TAG, String.format("requestUserPermission(%X:%X)", device.getVendorId(), device.getProductId() ) );
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PendingIntent mPendingIntent = PendingIntent.getBroadcast(this, 0, new Intent(ACTION_USB_PERMISSION), 0);
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usbManager.requestPermission(device, mPendingIntent);
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}
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public class UsbBinder extends Binder {
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public UsbSyncService getService() {
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return UsbSyncService.this;
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}
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}
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/*
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* A simple thread to open a serial port.
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* Although it should be a fast operation. moving usb operations away from UI thread is a good thing.
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*/
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private class ConnectionThread extends Thread {
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@Override
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public void run() {
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serialPort = UsbSerialDevice.createUsbSerialDevice(device, connection);
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if (serialPort != null) {
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if (serialPort.syncOpen()) {
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serialPortConnected = true;
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serialPort.setBaudRate(BAUD_RATE);
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serialPort.setDataBits(UsbSerialInterface.DATA_BITS_8);
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serialPort.setStopBits(UsbSerialInterface.STOP_BITS_1);
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serialPort.setParity(UsbSerialInterface.PARITY_NONE);
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/**
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* Current flow control Options:
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* UsbSerialInterface.FLOW_CONTROL_OFF
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* UsbSerialInterface.FLOW_CONTROL_RTS_CTS only for CP2102 and FT232
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* UsbSerialInterface.FLOW_CONTROL_DSR_DTR only for CP2102 and FT232
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*/
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serialPort.setFlowControl(UsbSerialInterface.FLOW_CONTROL_OFF);
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//
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// Some Arduinos would need some sleep because firmware wait some time to know whether a new sketch is going
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// to be uploaded or not
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//Thread.sleep(2000); // sleep some. YMMV with different chips.
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// Everything went as expected. Send an intent to MainActivity
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Intent intent = new Intent(ACTION_USB_READY);
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context.sendBroadcast(intent);
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readThread = new ReadThread();
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readThread.start();
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} else {
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// Serial port could not be opened, maybe an I/O error or if CDC driver was chosen, it does not really fit
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// Send an Intent to Main Activity
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if (serialPort instanceof CDCSerialDevice) {
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Intent intent = new Intent(ACTION_CDC_DRIVER_NOT_WORKING);
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context.sendBroadcast(intent);
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} else {
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Intent intent = new Intent(ACTION_USB_DEVICE_NOT_WORKING);
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context.sendBroadcast(intent);
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}
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}
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} else {
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// No driver for given device, even generic CDC driver could not be loaded
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Intent intent = new Intent(ACTION_USB_NOT_SUPPORTED);
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context.sendBroadcast(intent);
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}
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}
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}
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private class ReadThread extends Thread {
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@Override
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public void run() {
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while(true){
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byte[] tmpBuffer = new byte[16384];
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int n = serialPort.syncRead(tmpBuffer, 0);
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if(n > 0) {
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buffer.write(tmpBuffer, 0, n);
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}
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if(mode.equals(TEST_1)){
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if(buffer.size() == SIZE_TEST_1){
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serialPort.syncWrite(buffer.readByteArray(), 0);
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mode = TEST_2;
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mHandler.obtainMessage(MESSAGE_TEST_1, "Test 1Kb completed correctly").sendToTarget();
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}
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}else if(mode.equals(TEST_2)){
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if(buffer.size() == SIZE_TEST_2){
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serialPort.syncWrite(buffer.readByteArray(), 0);
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mode = TEST_3;
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mHandler.obtainMessage(MESSAGE_TEST_2, "Test 2Kb completed correctly").sendToTarget();
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}
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}else if(mode.equals(TEST_3)){
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if(buffer.size() == SIZE_TEST_3){
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serialPort.syncWrite(buffer.readByteArray(), 0);
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mode = TEST_1;
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mHandler.obtainMessage(MESSAGE_TEST_3, "Test 16Kb completed correctly").sendToTarget();
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}
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}
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}
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}
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}
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}
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