Kevin Crossan | d428549 | 2016-11-28 18:40:43 -0800 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | package android.car.usb.handler; |
| 17 | |
Nicholas Sauer | 3a3a492 | 2018-09-05 07:50:03 -0700 | [diff] [blame] | 18 | import android.annotation.Nullable; |
Kevin Crossan | d428549 | 2016-11-28 18:40:43 -0800 | [diff] [blame] | 19 | import android.car.IUsbAoapSupportCheckService; |
| 20 | import android.content.ComponentName; |
| 21 | import android.content.Context; |
| 22 | import android.content.Intent; |
| 23 | import android.content.ServiceConnection; |
| 24 | import android.content.pm.ActivityInfo; |
| 25 | import android.content.pm.PackageManager; |
| 26 | import android.content.pm.PackageManager.NameNotFoundException; |
| 27 | import android.content.pm.ResolveInfo; |
| 28 | import android.content.res.XmlResourceParser; |
| 29 | import android.hardware.usb.UsbDevice; |
| 30 | import android.hardware.usb.UsbDeviceConnection; |
| 31 | import android.hardware.usb.UsbInterface; |
| 32 | import android.hardware.usb.UsbManager; |
| 33 | import android.os.Handler; |
| 34 | import android.os.HandlerThread; |
| 35 | import android.os.IBinder; |
| 36 | import android.os.Looper; |
| 37 | import android.os.Message; |
| 38 | import android.os.RemoteException; |
| 39 | import android.util.Log; |
| 40 | import android.util.Pair; |
Nicholas Sauer | 3a3a492 | 2018-09-05 07:50:03 -0700 | [diff] [blame] | 41 | |
Kevin Crossan | d428549 | 2016-11-28 18:40:43 -0800 | [diff] [blame] | 42 | import com.android.internal.util.XmlUtils; |
Nicholas Sauer | 3a3a492 | 2018-09-05 07:50:03 -0700 | [diff] [blame] | 43 | |
| 44 | import org.xmlpull.v1.XmlPullParser; |
| 45 | |
Kevin Crossan | d428549 | 2016-11-28 18:40:43 -0800 | [diff] [blame] | 46 | import java.io.IOException; |
| 47 | import java.util.ArrayList; |
| 48 | import java.util.LinkedList; |
| 49 | import java.util.List; |
| 50 | import java.util.Queue; |
Kevin Crossan | d428549 | 2016-11-28 18:40:43 -0800 | [diff] [blame] | 51 | |
| 52 | /** Resolves supported handlers for USB device. */ |
| 53 | public final class UsbDeviceHandlerResolver { |
| 54 | private static final String TAG = UsbDeviceHandlerResolver.class.getSimpleName(); |
| 55 | private static final boolean LOCAL_LOGD = true; |
| 56 | |
| 57 | /** |
| 58 | * Callbacks for device resolver. |
| 59 | */ |
| 60 | public interface UsbDeviceHandlerResolverCallback { |
| 61 | /** Handlers are resolved */ |
| 62 | void onHandlersResolveCompleted( |
| 63 | UsbDevice device, List<UsbDeviceSettings> availableSettings); |
| 64 | /** Device was dispatched */ |
| 65 | void onDeviceDispatched(); |
| 66 | } |
| 67 | |
| 68 | private final UsbManager mUsbManager; |
| 69 | private final PackageManager mPackageManager; |
| 70 | private final UsbDeviceHandlerResolverCallback mDeviceCallback; |
| 71 | private final Context mContext; |
| 72 | private final HandlerThread mHandlerThread; |
| 73 | private final UsbDeviceResolverHandler mHandler; |
| 74 | |
| 75 | private class DeviceContext { |
| 76 | public final UsbDevice usbDevice; |
Nicholas Sauer | 3a3a492 | 2018-09-05 07:50:03 -0700 | [diff] [blame] | 77 | @Nullable public final UsbDeviceConnection connection; |
Kevin Crossan | d428549 | 2016-11-28 18:40:43 -0800 | [diff] [blame] | 78 | public final UsbDeviceSettings settings; |
| 79 | public final List<UsbDeviceSettings> activeDeviceSettings; |
| 80 | public final Queue<Pair<ResolveInfo, DeviceFilter>> mActiveDeviceOptions = |
| 81 | new LinkedList<>(); |
| 82 | |
| 83 | private volatile IUsbAoapSupportCheckService mUsbAoapSupportCheckService; |
| 84 | private final ServiceConnection mServiceConnection = new ServiceConnection() { |
| 85 | @Override |
| 86 | public void onServiceConnected(ComponentName className, IBinder service) { |
| 87 | Log.i(TAG, "onServiceConnected: " + className); |
| 88 | mUsbAoapSupportCheckService = IUsbAoapSupportCheckService.Stub.asInterface(service); |
| 89 | mHandler.requestOnServiceConnectionStateChanged(DeviceContext.this); |
| 90 | } |
| 91 | |
| 92 | @Override |
| 93 | public void onServiceDisconnected(ComponentName className) { |
| 94 | Log.i(TAG, "onServiceDisconnected: " + className); |
| 95 | mUsbAoapSupportCheckService = null; |
| 96 | mHandler.requestOnServiceConnectionStateChanged(DeviceContext.this); |
| 97 | } |
| 98 | }; |
| 99 | |
| 100 | public DeviceContext(UsbDevice usbDevice, UsbDeviceSettings settings, |
| 101 | List<UsbDeviceSettings> activeDeviceSettings) { |
| 102 | this.usbDevice = usbDevice; |
| 103 | this.settings = settings; |
| 104 | this.activeDeviceSettings = activeDeviceSettings; |
| 105 | connection = UsbUtil.openConnection(mUsbManager, usbDevice); |
| 106 | } |
| 107 | } |
| 108 | |
| 109 | // This class is used to describe a USB device. |
| 110 | // When used in HashMaps all values must be specified, |
| 111 | // but wildcards can be used for any of the fields in |
| 112 | // the package meta-data. |
| 113 | private static class DeviceFilter { |
| 114 | // USB Vendor ID (or -1 for unspecified) |
| 115 | public final int mVendorId; |
| 116 | // USB Product ID (or -1 for unspecified) |
| 117 | public final int mProductId; |
| 118 | // USB device or interface class (or -1 for unspecified) |
| 119 | public final int mClass; |
| 120 | // USB device subclass (or -1 for unspecified) |
| 121 | public final int mSubclass; |
| 122 | // USB device protocol (or -1 for unspecified) |
| 123 | public final int mProtocol; |
| 124 | // USB device manufacturer name string (or null for unspecified) |
| 125 | public final String mManufacturerName; |
| 126 | // USB device product name string (or null for unspecified) |
| 127 | public final String mProductName; |
| 128 | // USB device serial number string (or null for unspecified) |
| 129 | public final String mSerialNumber; |
| 130 | |
| 131 | // USB device in AOAP mode manufacturer |
| 132 | public final String mAoapManufacturer; |
| 133 | // USB device in AOAP mode model |
| 134 | public final String mAoapModel; |
| 135 | // USB device in AOAP mode description string |
| 136 | public final String mAoapDescription; |
| 137 | // USB device in AOAP mode version |
| 138 | public final String mAoapVersion; |
| 139 | // USB device in AOAP mode URI |
| 140 | public final String mAoapUri; |
| 141 | // USB device in AOAP mode serial |
| 142 | public final String mAoapSerial; |
| 143 | // USB device in AOAP mode verification service |
| 144 | public final String mAoapService; |
| 145 | |
| 146 | DeviceFilter(int vid, int pid, int clasz, int subclass, int protocol, |
| 147 | String manufacturer, String product, String serialnum, |
| 148 | String aoapManufacturer, String aoapModel, String aoapDescription, |
| 149 | String aoapVersion, String aoapUri, String aoapSerial, |
| 150 | String aoapService) { |
| 151 | mVendorId = vid; |
| 152 | mProductId = pid; |
| 153 | mClass = clasz; |
| 154 | mSubclass = subclass; |
| 155 | mProtocol = protocol; |
| 156 | mManufacturerName = manufacturer; |
| 157 | mProductName = product; |
| 158 | mSerialNumber = serialnum; |
| 159 | |
| 160 | mAoapManufacturer = aoapManufacturer; |
| 161 | mAoapModel = aoapModel; |
| 162 | mAoapDescription = aoapDescription; |
| 163 | mAoapVersion = aoapVersion; |
| 164 | mAoapUri = aoapUri; |
| 165 | mAoapSerial = aoapSerial; |
| 166 | mAoapService = aoapService; |
| 167 | } |
| 168 | |
| 169 | DeviceFilter(UsbDevice device) { |
| 170 | mVendorId = device.getVendorId(); |
| 171 | mProductId = device.getProductId(); |
| 172 | mClass = device.getDeviceClass(); |
| 173 | mSubclass = device.getDeviceSubclass(); |
| 174 | mProtocol = device.getDeviceProtocol(); |
| 175 | mManufacturerName = device.getManufacturerName(); |
| 176 | mProductName = device.getProductName(); |
| 177 | mSerialNumber = device.getSerialNumber(); |
| 178 | mAoapManufacturer = null; |
| 179 | mAoapModel = null; |
| 180 | mAoapDescription = null; |
| 181 | mAoapVersion = null; |
| 182 | mAoapUri = null; |
| 183 | mAoapSerial = null; |
| 184 | mAoapService = null; |
| 185 | } |
| 186 | |
| 187 | public static DeviceFilter read(XmlPullParser parser, boolean aoapData) { |
| 188 | int vendorId = -1; |
| 189 | int productId = -1; |
| 190 | int deviceClass = -1; |
| 191 | int deviceSubclass = -1; |
| 192 | int deviceProtocol = -1; |
| 193 | String manufacturerName = null; |
| 194 | String productName = null; |
| 195 | String serialNumber = null; |
| 196 | |
| 197 | String aoapManufacturer = null; |
| 198 | String aoapModel = null; |
| 199 | String aoapDescription = null; |
| 200 | String aoapVersion = null; |
| 201 | String aoapUri = null; |
| 202 | String aoapSerial = null; |
| 203 | String aoapService = null; |
| 204 | |
| 205 | int count = parser.getAttributeCount(); |
| 206 | for (int i = 0; i < count; i++) { |
| 207 | String name = parser.getAttributeName(i); |
| 208 | String value = parser.getAttributeValue(i); |
| 209 | // Attribute values are ints or strings |
| 210 | if (!aoapData && "manufacturer-name".equals(name)) { |
| 211 | manufacturerName = value; |
| 212 | } else if (!aoapData && "product-name".equals(name)) { |
| 213 | productName = value; |
| 214 | } else if (!aoapData && "serial-number".equals(name)) { |
| 215 | serialNumber = value; |
| 216 | } else if (aoapData && "manufacturer".equals(name)) { |
| 217 | aoapManufacturer = value; |
| 218 | } else if (aoapData && "model".equals(name)) { |
| 219 | aoapModel = value; |
| 220 | } else if (aoapData && "description".equals(name)) { |
| 221 | aoapDescription = value; |
| 222 | } else if (aoapData && "version".equals(name)) { |
| 223 | aoapVersion = value; |
| 224 | } else if (aoapData && "uri".equals(name)) { |
| 225 | aoapUri = value; |
| 226 | } else if (aoapData && "serial".equals(name)) { |
| 227 | aoapSerial = value; |
| 228 | } else if (aoapData && "service".equals(name)) { |
| 229 | aoapService = value; |
| 230 | } else if (!aoapData) { |
| 231 | int intValue = -1; |
| 232 | int radix = 10; |
| 233 | if (value != null && value.length() > 2 && value.charAt(0) == '0' |
| 234 | && (value.charAt(1) == 'x' || value.charAt(1) == 'X')) { |
| 235 | // allow hex values starting with 0x or 0X |
| 236 | radix = 16; |
| 237 | value = value.substring(2); |
| 238 | } |
| 239 | try { |
| 240 | intValue = Integer.parseInt(value, radix); |
| 241 | } catch (NumberFormatException e) { |
| 242 | Log.e(TAG, "invalid number for field " + name, e); |
| 243 | continue; |
| 244 | } |
| 245 | if ("vendor-id".equals(name)) { |
| 246 | vendorId = intValue; |
| 247 | } else if ("product-id".equals(name)) { |
| 248 | productId = intValue; |
| 249 | } else if ("class".equals(name)) { |
| 250 | deviceClass = intValue; |
| 251 | } else if ("subclass".equals(name)) { |
| 252 | deviceSubclass = intValue; |
| 253 | } else if ("protocol".equals(name)) { |
| 254 | deviceProtocol = intValue; |
| 255 | } |
| 256 | } |
| 257 | } |
| 258 | return new DeviceFilter(vendorId, productId, |
| 259 | deviceClass, deviceSubclass, deviceProtocol, |
| 260 | manufacturerName, productName, serialNumber, aoapManufacturer, |
| 261 | aoapModel, aoapDescription, aoapVersion, aoapUri, aoapSerial, |
| 262 | aoapService); |
| 263 | } |
| 264 | |
| 265 | private boolean matches(int clasz, int subclass, int protocol) { |
| 266 | return ((mClass == -1 || clasz == mClass) |
| 267 | && (mSubclass == -1 || subclass == mSubclass) |
| 268 | && (mProtocol == -1 || protocol == mProtocol)); |
| 269 | } |
| 270 | |
| 271 | public boolean matches(UsbDevice device) { |
| 272 | if (mVendorId != -1 && device.getVendorId() != mVendorId) { |
| 273 | return false; |
| 274 | } |
| 275 | if (mProductId != -1 && device.getProductId() != mProductId) { |
| 276 | return false; |
| 277 | } |
| 278 | if (mManufacturerName != null && device.getManufacturerName() == null) { |
| 279 | return false; |
| 280 | } |
| 281 | if (mProductName != null && device.getProductName() == null) { |
| 282 | return false; |
| 283 | } |
| 284 | if (mSerialNumber != null && device.getSerialNumber() == null) { |
| 285 | return false; |
| 286 | } |
| 287 | if (mManufacturerName != null && device.getManufacturerName() != null |
| 288 | && !mManufacturerName.equals(device.getManufacturerName())) { |
| 289 | return false; |
| 290 | } |
| 291 | if (mProductName != null && device.getProductName() != null |
| 292 | && !mProductName.equals(device.getProductName())) { |
| 293 | return false; |
| 294 | } |
| 295 | if (mSerialNumber != null && device.getSerialNumber() != null |
| 296 | && !mSerialNumber.equals(device.getSerialNumber())) { |
| 297 | return false; |
| 298 | } |
| 299 | |
| 300 | // check device class/subclass/protocol |
| 301 | if (matches(device.getDeviceClass(), device.getDeviceSubclass(), |
| 302 | device.getDeviceProtocol())) { |
| 303 | return true; |
| 304 | } |
| 305 | |
| 306 | // if device doesn't match, check the interfaces |
| 307 | int count = device.getInterfaceCount(); |
| 308 | for (int i = 0; i < count; i++) { |
| 309 | UsbInterface intf = device.getInterface(i); |
| 310 | if (matches(intf.getInterfaceClass(), intf.getInterfaceSubclass(), |
| 311 | intf.getInterfaceProtocol())) { |
| 312 | return true; |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | return false; |
| 317 | } |
| 318 | |
| 319 | @Override |
| 320 | public boolean equals(Object obj) { |
| 321 | // can't compare if we have wildcard strings |
| 322 | if (mVendorId == -1 || mProductId == -1 |
| 323 | || mClass == -1 || mSubclass == -1 || mProtocol == -1) { |
| 324 | return false; |
| 325 | } |
| 326 | if (obj instanceof DeviceFilter) { |
| 327 | DeviceFilter filter = (DeviceFilter) obj; |
| 328 | |
| 329 | if (filter.mVendorId != mVendorId |
| 330 | || filter.mProductId != mProductId |
| 331 | || filter.mClass != mClass |
| 332 | || filter.mSubclass != mSubclass |
| 333 | || filter.mProtocol != mProtocol) { |
| 334 | return false; |
| 335 | } |
| 336 | if ((filter.mManufacturerName != null && mManufacturerName == null) |
| 337 | || (filter.mManufacturerName == null && mManufacturerName != null) |
| 338 | || (filter.mProductName != null && mProductName == null) |
| 339 | || (filter.mProductName == null && mProductName != null) |
| 340 | || (filter.mSerialNumber != null && mSerialNumber == null) |
| 341 | || (filter.mSerialNumber == null && mSerialNumber != null)) { |
| 342 | return false; |
| 343 | } |
| 344 | if ((filter.mManufacturerName != null && mManufacturerName != null |
| 345 | && !mManufacturerName.equals(filter.mManufacturerName)) |
| 346 | || (filter.mProductName != null && mProductName != null |
| 347 | && !mProductName.equals(filter.mProductName)) |
| 348 | || (filter.mSerialNumber != null && mSerialNumber != null |
| 349 | && !mSerialNumber.equals(filter.mSerialNumber))) { |
| 350 | return false; |
| 351 | } |
| 352 | return true; |
| 353 | } |
| 354 | if (obj instanceof UsbDevice) { |
| 355 | UsbDevice device = (UsbDevice) obj; |
| 356 | if (device.getVendorId() != mVendorId |
| 357 | || device.getProductId() != mProductId |
| 358 | || device.getDeviceClass() != mClass |
| 359 | || device.getDeviceSubclass() != mSubclass |
| 360 | || device.getDeviceProtocol() != mProtocol) { |
| 361 | return false; |
| 362 | } |
| 363 | if ((mManufacturerName != null && device.getManufacturerName() == null) |
| 364 | || (mManufacturerName == null && device.getManufacturerName() != null) |
| 365 | || (mProductName != null && device.getProductName() == null) |
| 366 | || (mProductName == null && device.getProductName() != null) |
| 367 | || (mSerialNumber != null && device.getSerialNumber() == null) |
| 368 | || (mSerialNumber == null && device.getSerialNumber() != null)) { |
| 369 | return false; |
| 370 | } |
| 371 | if ((device.getManufacturerName() != null |
| 372 | && !mManufacturerName.equals(device.getManufacturerName())) |
| 373 | || (device.getProductName() != null |
| 374 | && !mProductName.equals(device.getProductName())) |
| 375 | || (device.getSerialNumber() != null |
| 376 | && !mSerialNumber.equals(device.getSerialNumber()))) { |
| 377 | return false; |
| 378 | } |
| 379 | return true; |
| 380 | } |
| 381 | return false; |
| 382 | } |
| 383 | |
| 384 | @Override |
| 385 | public int hashCode() { |
| 386 | return (((mVendorId << 16) | mProductId) |
| 387 | ^ ((mClass << 16) | (mSubclass << 8) | mProtocol)); |
| 388 | } |
| 389 | |
| 390 | @Override |
| 391 | public String toString() { |
| 392 | return "DeviceFilter[mVendorId=" + mVendorId + ",mProductId=" + mProductId |
| 393 | + ",mClass=" + mClass + ",mSubclass=" + mSubclass |
| 394 | + ",mProtocol=" + mProtocol + ",mManufacturerName=" + mManufacturerName |
| 395 | + ",mProductName=" + mProductName + ",mSerialNumber=" + mSerialNumber + "]"; |
| 396 | } |
| 397 | } |
| 398 | |
| 399 | public UsbDeviceHandlerResolver(UsbManager manager, Context context, |
| 400 | UsbDeviceHandlerResolverCallback deviceListener) { |
| 401 | mUsbManager = manager; |
| 402 | mContext = context; |
| 403 | mDeviceCallback = deviceListener; |
| 404 | mHandlerThread = new HandlerThread(TAG); |
| 405 | mHandlerThread.start(); |
| 406 | mHandler = new UsbDeviceResolverHandler(mHandlerThread.getLooper()); |
| 407 | mPackageManager = context.getPackageManager(); |
| 408 | } |
| 409 | |
| 410 | /** |
| 411 | * Releases current object. |
| 412 | */ |
| 413 | public void release() { |
| 414 | if (mHandlerThread != null) { |
| 415 | mHandlerThread.quitSafely(); |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | /** |
| 420 | * Resolves handlers for USB device. |
| 421 | */ |
| 422 | public void resolve(UsbDevice device) { |
| 423 | mHandler.requestResolveHandlers(device); |
| 424 | } |
| 425 | |
| 426 | /** |
| 427 | * Dispatches device to component. |
| 428 | */ |
| 429 | public boolean dispatch(UsbDevice device, ComponentName component, boolean inAoap) { |
| 430 | if (LOCAL_LOGD) { |
| 431 | Log.d(TAG, "dispatch: " + device + " component: " + component + " inAoap: " + inAoap); |
| 432 | } |
| 433 | |
| 434 | ActivityInfo activityInfo; |
| 435 | try { |
| 436 | activityInfo = mPackageManager.getActivityInfo(component, PackageManager.GET_META_DATA); |
| 437 | } catch (NameNotFoundException e) { |
| 438 | Log.e(TAG, "Activity not found: " + component); |
| 439 | return false; |
| 440 | } |
| 441 | |
| 442 | Intent intent = createDeviceAttachedIntent(device); |
| 443 | if (inAoap) { |
| 444 | if (AoapInterface.isDeviceInAoapMode(device)) { |
| 445 | mDeviceCallback.onDeviceDispatched(); |
| 446 | } else { |
| 447 | DeviceFilter filter = |
| 448 | packageMatches(activityInfo, intent.getAction(), device, true); |
| 449 | if (filter != null) { |
| 450 | requestAoapSwitch(device, filter); |
| 451 | return true; |
| 452 | } |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | intent.setComponent(component); |
| 457 | mUsbManager.grantPermission(device, activityInfo.applicationInfo.uid); |
| 458 | |
| 459 | mContext.startActivity(intent); |
| 460 | mHandler.requestCompleteDeviceDispatch(); |
| 461 | return true; |
| 462 | } |
| 463 | |
| 464 | private static Intent createDeviceAttachedIntent(UsbDevice device) { |
| 465 | Intent intent = new Intent(UsbManager.ACTION_USB_DEVICE_ATTACHED); |
| 466 | intent.putExtra(UsbManager.EXTRA_DEVICE, device); |
| 467 | intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK); |
| 468 | return intent; |
| 469 | } |
| 470 | |
| 471 | private void doHandleResolveHandlers(UsbDevice device) { |
| 472 | if (LOCAL_LOGD) { |
| 473 | Log.d(TAG, "doHandleResolveHandlers: " + device); |
| 474 | } |
| 475 | |
| 476 | Intent intent = createDeviceAttachedIntent(device); |
| 477 | List<Pair<ResolveInfo, DeviceFilter>> matches = getDeviceMatches(device, intent, false); |
| 478 | if (LOCAL_LOGD) { |
| 479 | Log.d(TAG, "matches size: " + matches.size()); |
| 480 | } |
| 481 | List<UsbDeviceSettings> settings = new ArrayList<>(matches.size()); |
| 482 | for (Pair<ResolveInfo, DeviceFilter> info : matches) { |
| 483 | UsbDeviceSettings setting = UsbDeviceSettings.constructSettings(device); |
| 484 | setting.setHandler( |
| 485 | new ComponentName( |
| 486 | info.first.activityInfo.packageName, info.first.activityInfo.name)); |
| 487 | settings.add(setting); |
| 488 | } |
| 489 | DeviceContext deviceContext = |
| 490 | new DeviceContext(device, UsbDeviceSettings.constructSettings(device), settings); |
Nicholas Sauer | 3a3a492 | 2018-09-05 07:50:03 -0700 | [diff] [blame] | 491 | if (deviceContext.connection != null |
George Lu | 17f5c59 | 2019-01-09 10:22:45 -0800 | [diff] [blame^] | 492 | && AoapInterface.isSupported(mContext, device, deviceContext.connection)) { |
Kevin Crossan | d428549 | 2016-11-28 18:40:43 -0800 | [diff] [blame] | 493 | deviceContext.mActiveDeviceOptions.addAll(getDeviceMatches(device, intent, true)); |
| 494 | queryNextAoapHandler(deviceContext); |
| 495 | } else { |
| 496 | deviceProbingComplete(deviceContext); |
| 497 | } |
| 498 | } |
| 499 | |
| 500 | private void queryNextAoapHandler(DeviceContext context) { |
| 501 | Pair<ResolveInfo, DeviceFilter> option = context.mActiveDeviceOptions.peek(); |
| 502 | if (option == null) { |
| 503 | Log.w(TAG, "No more options left."); |
| 504 | deviceProbingComplete(context); |
| 505 | return; |
| 506 | } |
| 507 | Intent serviceIntent = new Intent(); |
| 508 | serviceIntent.setComponent(ComponentName.unflattenFromString(option.second.mAoapService)); |
| 509 | boolean bound = mContext.bindService(serviceIntent, context.mServiceConnection, |
| 510 | Context.BIND_AUTO_CREATE); |
| 511 | if (bound) { |
| 512 | mHandler.requestServiceConnectionTimeout(); |
| 513 | } else { |
| 514 | if (LOCAL_LOGD) { |
| 515 | Log.d(TAG, "Failed to bind to the service"); |
| 516 | } |
| 517 | context.mActiveDeviceOptions.poll(); |
| 518 | queryNextAoapHandler(context); |
| 519 | } |
| 520 | } |
| 521 | |
| 522 | private void requestAoapSwitch(UsbDevice device, DeviceFilter filter) { |
| 523 | UsbDeviceConnection connection = UsbUtil.openConnection(mUsbManager, device); |
Nicholas Sauer | 3a3a492 | 2018-09-05 07:50:03 -0700 | [diff] [blame] | 524 | if (connection == null) { |
| 525 | Log.e(TAG, "Failed to connect to usb device."); |
| 526 | return; |
| 527 | } |
Kevin Crossan | d428549 | 2016-11-28 18:40:43 -0800 | [diff] [blame] | 528 | try { |
| 529 | UsbUtil.sendAoapAccessoryStart( |
| 530 | connection, |
| 531 | filter.mAoapManufacturer, |
| 532 | filter.mAoapModel, |
| 533 | filter.mAoapDescription, |
| 534 | filter.mAoapVersion, |
| 535 | filter.mAoapUri, |
| 536 | filter.mAoapSerial); |
| 537 | } catch (IOException e) { |
| 538 | Log.w(TAG, "Failed to switch device into AOAP mode", e); |
| 539 | } |
| 540 | connection.close(); |
| 541 | } |
| 542 | |
| 543 | private void deviceProbingComplete(DeviceContext context) { |
| 544 | if (LOCAL_LOGD) { |
| 545 | Log.d(TAG, "deviceProbingComplete"); |
| 546 | } |
| 547 | mDeviceCallback.onHandlersResolveCompleted(context.usbDevice, context.activeDeviceSettings); |
| 548 | } |
| 549 | |
| 550 | private void doHandleServiceConnectionStateChanged(DeviceContext context) { |
| 551 | if (LOCAL_LOGD) { |
| 552 | Log.d(TAG, "doHandleServiceConnectionStateChanged: " |
| 553 | + context.mUsbAoapSupportCheckService); |
| 554 | } |
| 555 | if (context.mUsbAoapSupportCheckService != null) { |
| 556 | boolean deviceSupported = false; |
| 557 | try { |
| 558 | deviceSupported = |
| 559 | context.mUsbAoapSupportCheckService.isDeviceSupported(context.usbDevice); |
| 560 | } catch (RemoteException e) { |
| 561 | Log.e(TAG, "Call to remote service failed", e); |
| 562 | } |
| 563 | if (deviceSupported) { |
| 564 | Pair<ResolveInfo, DeviceFilter> option = context.mActiveDeviceOptions.peek(); |
| 565 | |
| 566 | UsbDeviceSettings setting = UsbDeviceSettings.constructSettings(context.settings); |
| 567 | setting.setHandler( |
| 568 | new ComponentName( |
| 569 | option.first.activityInfo.packageName, option.first.activityInfo.name)); |
| 570 | setting.setAoap(true); |
| 571 | context.activeDeviceSettings.add(setting); |
| 572 | } |
| 573 | mContext.unbindService(context.mServiceConnection); |
| 574 | } |
| 575 | context.mActiveDeviceOptions.poll(); |
| 576 | queryNextAoapHandler(context); |
| 577 | } |
| 578 | |
| 579 | private List<Pair<ResolveInfo, DeviceFilter>> getDeviceMatches( |
| 580 | UsbDevice device, Intent intent, boolean forAoap) { |
| 581 | List<Pair<ResolveInfo, DeviceFilter>> matches = new ArrayList<>(); |
| 582 | List<ResolveInfo> resolveInfos = |
| 583 | mPackageManager.queryIntentActivities(intent, PackageManager.GET_META_DATA); |
| 584 | for (ResolveInfo resolveInfo : resolveInfos) { |
| 585 | DeviceFilter filter = packageMatches(resolveInfo.activityInfo, |
| 586 | intent.getAction(), device, forAoap); |
| 587 | if (filter != null) { |
| 588 | matches.add(Pair.create(resolveInfo, filter)); |
| 589 | } |
| 590 | } |
| 591 | return matches; |
| 592 | } |
| 593 | |
| 594 | private DeviceFilter packageMatches(ActivityInfo ai, String metaDataName, UsbDevice device, |
| 595 | boolean forAoap) { |
| 596 | if (LOCAL_LOGD) { |
| 597 | Log.d(TAG, "packageMatches ai: " + ai + "metaDataName: " + metaDataName + " forAoap: " |
| 598 | + forAoap); |
| 599 | } |
| 600 | String filterTagName = forAoap ? "usb-aoap-accessory" : "usb-device"; |
| 601 | XmlResourceParser parser = null; |
| 602 | try { |
| 603 | parser = ai.loadXmlMetaData(mPackageManager, metaDataName); |
| 604 | if (parser == null) { |
| 605 | Log.w(TAG, "no meta-data for " + ai); |
| 606 | return null; |
| 607 | } |
| 608 | |
| 609 | XmlUtils.nextElement(parser); |
| 610 | while (parser.getEventType() != XmlPullParser.END_DOCUMENT) { |
| 611 | String tagName = parser.getName(); |
| 612 | if (device != null && filterTagName.equals(tagName)) { |
| 613 | DeviceFilter filter = DeviceFilter.read(parser, forAoap); |
| 614 | if (forAoap || filter.matches(device)) { |
| 615 | return filter; |
| 616 | } |
| 617 | } |
| 618 | XmlUtils.nextElement(parser); |
| 619 | } |
| 620 | } catch (Exception e) { |
| 621 | Log.w(TAG, "Unable to load component info " + ai.toString(), e); |
| 622 | } finally { |
| 623 | if (parser != null) parser.close(); |
| 624 | } |
| 625 | return null; |
| 626 | } |
| 627 | |
| 628 | private class UsbDeviceResolverHandler extends Handler { |
| 629 | private static final int MSG_RESOLVE_HANDLERS = 0; |
| 630 | private static final int MSG_SERVICE_CONNECTION_STATE_CHANGE = 1; |
| 631 | private static final int MSG_SERVICE_CONNECTION_TIMEOUT = 2; |
| 632 | private static final int MSG_COMPLETE_DISPATCH = 3; |
| 633 | |
| 634 | private static final long CONNECT_TIMEOUT_MS = 5000; |
| 635 | |
| 636 | private UsbDeviceResolverHandler(Looper looper) { |
| 637 | super(looper); |
| 638 | } |
| 639 | |
| 640 | public void requestResolveHandlers(UsbDevice device) { |
| 641 | Message msg = obtainMessage(MSG_RESOLVE_HANDLERS, device); |
| 642 | sendMessage(msg); |
| 643 | } |
| 644 | |
| 645 | public void requestOnServiceConnectionStateChanged(DeviceContext deviceContext) { |
| 646 | sendMessage(obtainMessage(MSG_SERVICE_CONNECTION_STATE_CHANGE, deviceContext)); |
| 647 | } |
| 648 | |
| 649 | public void requestServiceConnectionTimeout() { |
| 650 | sendEmptyMessageDelayed(MSG_SERVICE_CONNECTION_TIMEOUT, CONNECT_TIMEOUT_MS); |
| 651 | } |
| 652 | |
| 653 | public void requestCompleteDeviceDispatch() { |
| 654 | sendEmptyMessage(MSG_COMPLETE_DISPATCH); |
| 655 | } |
| 656 | |
| 657 | @Override |
| 658 | public void handleMessage(Message msg) { |
| 659 | switch (msg.what) { |
| 660 | case MSG_RESOLVE_HANDLERS: |
| 661 | doHandleResolveHandlers((UsbDevice) msg.obj); |
| 662 | break; |
| 663 | case MSG_SERVICE_CONNECTION_STATE_CHANGE: |
| 664 | removeMessages(MSG_SERVICE_CONNECTION_TIMEOUT); |
| 665 | doHandleServiceConnectionStateChanged((DeviceContext) msg.obj); |
| 666 | break; |
| 667 | case MSG_SERVICE_CONNECTION_TIMEOUT: |
| 668 | Log.i(TAG, "Service connection timeout"); |
| 669 | doHandleServiceConnectionStateChanged(null); |
| 670 | break; |
| 671 | case MSG_COMPLETE_DISPATCH: |
| 672 | mDeviceCallback.onDeviceDispatched(); |
| 673 | break; |
| 674 | default: |
| 675 | Log.w(TAG, "Unsupported message: " + msg); |
| 676 | } |
| 677 | } |
| 678 | } |
| 679 | } |