1badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park/* 2badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * Copyright (C) 2016 The Android Open Source Project 3badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * 4badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * Licensed under the Apache License, Version 2.0 (the "License"); 5badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * you may not use this file except in compliance with the License. 6badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * You may obtain a copy of the License at 7badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * 8badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * http://www.apache.org/licenses/LICENSE-2.0 9badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * 10badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * Unless required by applicable law or agreed to in writing, software 11badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * distributed under the License is distributed on an "AS IS" BASIS, 12badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * See the License for the specific language governing permissions and 14badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park * limitations under the License. 15badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park */ 16badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkpackage com.android.hardware.usb.aoapdevicetest; 17badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 18badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport android.app.Activity; 19badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport android.app.PendingIntent; 20badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport android.content.BroadcastReceiver; 21badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport android.content.Context; 22badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport android.content.Intent; 23badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport android.content.IntentFilter; 24badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport android.hardware.usb.UsbAccessory; 25badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport android.hardware.usb.UsbManager; 26badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport android.os.Bundle; 27badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport android.os.ParcelFileDescriptor; 28badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport android.util.Log; 29badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 30badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport java.io.FileInputStream; 31badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport java.io.FileOutputStream; 32badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport java.io.IOException; 33badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 34badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkimport libcore.io.IoUtils; 35badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 36badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Parkpublic class UsbAoapDeviceTestActivity extends Activity { 37badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private static final String TAG = UsbAoapDeviceTestActivity.class.getSimpleName(); 38badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private static final boolean DBG = true; 39badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 40badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private static final String ACTION_USB_ACCESSORY_PERMISSION = 41badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park "com.android.hardware.usb.aoapdevicetest.ACTION_USB_ACCESSORY_PERMISSION"; 42badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 43badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private UsbManager mUsbManager; 44badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private AccessoryReceiver mReceiver; 45badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private ParcelFileDescriptor mFd; 46badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private ReaderThread mReaderThread; 47badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private UsbAccessory mAccessory; 48badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 49badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park @Override 50badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park protected void onCreate(Bundle savedInstanceState) { 51badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park super.onCreate(savedInstanceState); 52badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 53badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park setContentView(R.layout.device); 54badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 55badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park mUsbManager = (UsbManager)getSystemService(Context.USB_SERVICE); 56badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park IntentFilter filter = new IntentFilter(); 57badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park filter.addAction(UsbManager.ACTION_USB_ACCESSORY_ATTACHED); 58badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park filter.addAction(UsbManager.ACTION_USB_ACCESSORY_DETACHED); 59badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park filter.addAction(ACTION_USB_ACCESSORY_PERMISSION); 60badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park mReceiver = new AccessoryReceiver(); 61badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park registerReceiver(mReceiver, filter); 62badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 63badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park Intent intent = getIntent(); 64badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park if (intent.getAction().equals(UsbManager.ACTION_USB_ACCESSORY_ATTACHED)) { 65badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park UsbAccessory accessory = 66badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park (UsbAccessory) intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY); 67badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park if (accessory != null) { 68badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park onAccessoryAttached(accessory); 69badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } else { 70badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park throw new RuntimeException("USB accessory is null."); 71badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 72badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } else { 73badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park finish(); 74badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 75badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 76badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 77badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park @Override 78badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park protected void onDestroy() { 79badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park super.onDestroy(); 80badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park unregisterReceiver(mReceiver); 81badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park IoUtils.closeQuietly(mFd); 82badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park if (mReaderThread != null) { 83badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park mReaderThread.requestToQuit(); 84badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park try { 85badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park mReaderThread.join(1000); 86badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } catch (InterruptedException e) { 87badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 88badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park if (mReaderThread.isAlive()) { // reader thread stuck 89badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park Log.w(TAG, "ReaderThread still alive"); 90badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 91badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 92badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 93badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 94badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private void onAccessoryAttached(UsbAccessory accessory) { 95badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park Log.i(TAG, "Starting AOAP discovery protocol, accessory attached: " + accessory); 96badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park // Check whether we have permission to access the accessory. 97badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park if (!mUsbManager.hasPermission(accessory)) { 98badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park Log.i(TAG, "Prompting the user for access to the accessory."); 99badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park Intent intent = new Intent(ACTION_USB_ACCESSORY_PERMISSION); 100badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park intent.setPackage(getPackageName()); 101badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park PendingIntent pendingIntent = PendingIntent.getBroadcast( 102badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park this, 0, intent, PendingIntent.FLAG_ONE_SHOT); 103badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park mUsbManager.requestPermission(accessory, pendingIntent); 104badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park return; 105badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 106badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park mFd = mUsbManager.openAccessory(accessory); 107badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park if (mFd == null) { 108badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park Log.e(TAG, "UsbManager.openAccessory returned null"); 109badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park finish(); 110badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park return; 111badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 112badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park mAccessory = accessory; 113badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park mReaderThread = new ReaderThread(mFd); 114badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park mReaderThread.start(); 115badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 116badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 117badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private void onAccessoryDetached(UsbAccessory accessory) { 118badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park Log.i(TAG, "Accessory detached: " + accessory); 119badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park finish(); 120badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 121badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 122badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private class ReaderThread extends Thread { 123badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private boolean mShouldQuit = false; 124badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private final FileInputStream mInputStream; 125badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private final FileOutputStream mOutputStream; 126badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private final byte[] mBuffer = new byte[16384]; 127badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 128badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private ReaderThread(ParcelFileDescriptor fd) { 129badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park super("AOAP"); 130badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park mInputStream = new FileInputStream(fd.getFileDescriptor()); 131badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park mOutputStream = new FileOutputStream(fd.getFileDescriptor()); 132badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 133badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 134badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private synchronized void requestToQuit() { 135badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park mShouldQuit = true; 136badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 137badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 138badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private synchronized boolean shouldQuit() { 139badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park return mShouldQuit; 140badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 141badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 142badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park @Override 143badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park public void run() { 144badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park while (!shouldQuit()) { 145badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park try { 146badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park int read = mInputStream.read(mBuffer); 147badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } catch (IOException e) { 148badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park Log.i(TAG, "ReaderThread IOException", e); 149badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park // AOAP App should release FD when IOException happens. 150badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park // If FD is kept, device will not behave nicely on reset and multiple reset 151badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park // can be required. 152badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park finish(); 153badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park return; 154badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 155badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 156badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 157badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 158badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park 159badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park private class AccessoryReceiver extends BroadcastReceiver { 160badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park @Override 161badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park public void onReceive(Context context, Intent intent) { 162badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park UsbAccessory accessory = intent.getParcelableExtra(UsbManager.EXTRA_ACCESSORY); 163badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park if (accessory != null) { 164badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park String action = intent.getAction(); 165badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park if (action.equals(UsbManager.ACTION_USB_ACCESSORY_ATTACHED)) { 166badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park onAccessoryAttached(accessory); 167badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } else if (action.equals(UsbManager.ACTION_USB_ACCESSORY_DETACHED)) { 168badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park if (mAccessory != null && mAccessory.equals(accessory)) { 169badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park onAccessoryDetached(accessory); 170badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 171badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } else if (action.equals(ACTION_USB_ACCESSORY_PERMISSION)) { 172badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park if (intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED, false)) { 173badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park Log.i(TAG, "Accessory permission granted: " + accessory); 174badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park onAccessoryAttached(accessory); 175badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } else { 176badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park Log.e(TAG, "Accessory permission denied: " + accessory); 177badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park finish(); 178badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 179badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 180badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 181badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 182badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park } 183badbbae6fa2846415778b2a152a0758acbf0eb74Keun-young Park} 184