destradaa | 1af4b02 | 2013-07-12 15:43:36 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2013 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/license/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 | |
| 17 | #define LOG_TAG "FuseLocationProvider" |
| 18 | #define LOG_NDEBUG 0 |
| 19 | |
| 20 | #define WAKE_LOCK_NAME "FLP" |
| 21 | #define LOCATION_CLASS_NAME "android/location/Location" |
| 22 | |
| 23 | #include "jni.h" |
| 24 | #include "JNIHelp.h" |
| 25 | #include "android_runtime/AndroidRuntime.h" |
| 26 | #include "hardware/fused_location.h" |
| 27 | #include "hardware_legacy/power.h" |
| 28 | |
| 29 | static jobject sCallbacksObj = NULL; |
| 30 | static JNIEnv *sCallbackEnv = NULL; |
| 31 | static hw_device_t* sHardwareDevice = NULL; |
| 32 | |
| 33 | static jmethodID sOnLocationReport = NULL; |
| 34 | static jmethodID sOnDataReport = NULL; |
| 35 | static jmethodID sOnGeofenceTransition = NULL; |
| 36 | static jmethodID sOnGeofenceMonitorStatus = NULL; |
| 37 | static jmethodID sOnGeofenceAdd = NULL; |
| 38 | static jmethodID sOnGeofenceRemove = NULL; |
| 39 | static jmethodID sOnGeofencePause = NULL; |
| 40 | static jmethodID sOnGeofenceResume = NULL; |
| 41 | |
| 42 | static const FlpLocationInterface* sFlpInterface = NULL; |
| 43 | static const FlpDiagnosticInterface* sFlpDiagnosticInterface = NULL; |
| 44 | static const FlpGeofencingInterface* sFlpGeofencingInterface = NULL; |
| 45 | static const FlpDeviceContextInterface* sFlpDeviceContextInterface = NULL; |
| 46 | |
| 47 | namespace android { |
| 48 | |
| 49 | static inline void CheckExceptions(JNIEnv* env, const char* methodName) { |
| 50 | if(!env->ExceptionCheck()) { |
| 51 | return; |
| 52 | } |
| 53 | |
| 54 | ALOGE("An exception was thrown by '%s'.", methodName); |
| 55 | LOGE_EX(env); |
| 56 | env->ExceptionClear(); |
| 57 | } |
| 58 | |
| 59 | static inline void ThrowOnError( |
| 60 | JNIEnv* env, |
| 61 | int resultCode, |
| 62 | const char* methodName) { |
| 63 | if(resultCode == FLP_RESULT_SUCCESS) { |
| 64 | return; |
| 65 | } |
| 66 | |
| 67 | ALOGE("Error %d in '%s'", resultCode, methodName); |
| 68 | jclass exceptionClass = env->FindClass("java/lang/RuntimeException"); |
| 69 | env->ThrowNew(exceptionClass, methodName); |
| 70 | } |
| 71 | |
| 72 | static bool IsValidCallbackThread() { |
| 73 | JNIEnv* env = AndroidRuntime::getJNIEnv(); |
| 74 | |
| 75 | if(sCallbackEnv == NULL || sCallbackEnv != env) { |
| 76 | ALOGE("CallbackThread check fail: env=%p, expected=%p", env, sCallbackEnv); |
| 77 | return false; |
| 78 | } |
| 79 | |
| 80 | return true; |
| 81 | } |
| 82 | |
| 83 | static int SetThreadEvent(ThreadEvent event) { |
| 84 | JavaVM* javaVm = AndroidRuntime::getJavaVM(); |
| 85 | |
| 86 | switch(event) { |
| 87 | case ASSOCIATE_JVM: |
| 88 | { |
| 89 | if(sCallbackEnv != NULL) { |
| 90 | ALOGE( |
| 91 | "Attempted to associate callback in '%s'. Callback already associated.", |
| 92 | __FUNCTION__ |
| 93 | ); |
| 94 | return FLP_RESULT_ERROR; |
| 95 | } |
| 96 | |
| 97 | JavaVMAttachArgs args = { |
| 98 | JNI_VERSION_1_6, |
| 99 | "FLP Service Callback Thread", |
| 100 | /* group */ NULL |
| 101 | }; |
| 102 | |
| 103 | jint attachResult = javaVm->AttachCurrentThread(&sCallbackEnv, &args); |
| 104 | if (attachResult != 0) { |
| 105 | ALOGE("Callback thread attachment error: %d", attachResult); |
| 106 | return FLP_RESULT_ERROR; |
| 107 | } |
| 108 | |
| 109 | ALOGV("Callback thread attached: %p", sCallbackEnv); |
| 110 | break; |
| 111 | } |
| 112 | case DISASSOCIATE_JVM: |
| 113 | { |
| 114 | if (!IsValidCallbackThread()) { |
| 115 | ALOGE( |
| 116 | "Attempted to dissasociate an unnownk callback thread : '%s'.", |
| 117 | __FUNCTION__ |
| 118 | ); |
| 119 | return FLP_RESULT_ERROR; |
| 120 | } |
| 121 | |
| 122 | if (javaVm->DetachCurrentThread() != 0) { |
| 123 | return FLP_RESULT_ERROR; |
| 124 | } |
| 125 | |
| 126 | sCallbackEnv = NULL; |
| 127 | break; |
| 128 | } |
| 129 | default: |
| 130 | ALOGE("Invalid ThreadEvent request %d", event); |
| 131 | return FLP_RESULT_ERROR; |
| 132 | } |
| 133 | |
| 134 | return FLP_RESULT_SUCCESS; |
| 135 | } |
| 136 | |
| 137 | /* |
| 138 | * Initializes the FlpHardwareProvider class from the native side by opening |
| 139 | * the HW module and obtaining the proper interfaces. |
| 140 | */ |
| 141 | static void ClassInit(JNIEnv* env, jclass clazz) { |
| 142 | // get references to the Java provider methods |
| 143 | sOnLocationReport = env->GetMethodID( |
| 144 | clazz, |
| 145 | "onLocationReport", |
| 146 | "([Landroid/location/Location;)V"); |
| 147 | sOnDataReport = env->GetMethodID( |
| 148 | clazz, |
| 149 | "onDataReport", |
| 150 | "(Ljava/lang/String;)V" |
| 151 | ); |
| 152 | sOnGeofenceTransition = env->GetMethodID( |
| 153 | clazz, |
| 154 | "onGeofenceTransition", |
| 155 | "(ILandroid/location/Location;IJI)V" |
| 156 | ); |
| 157 | sOnGeofenceMonitorStatus = env->GetMethodID( |
| 158 | clazz, |
| 159 | "onGeofenceMonitorStatus", |
| 160 | "(IILandroid/location/Location;)V" |
| 161 | ); |
| 162 | sOnGeofenceAdd = env->GetMethodID(clazz, "onGeofenceAdd", "(II)V"); |
| 163 | sOnGeofenceRemove = env->GetMethodID(clazz, "onGeofenceRemove", "(II)V"); |
| 164 | sOnGeofencePause = env->GetMethodID(clazz, "onGeofencePause", "(II)V"); |
| 165 | sOnGeofenceResume = env->GetMethodID(clazz, "onGeofenceResume", "(II)V"); |
| 166 | } |
| 167 | |
| 168 | /* |
| 169 | * Helper function to unwrap a java object back into a FlpLocation structure. |
| 170 | */ |
| 171 | static void TranslateFromObject( |
| 172 | JNIEnv* env, |
| 173 | jobject locationObject, |
| 174 | FlpLocation& location) { |
| 175 | location.size = sizeof(FlpLocation); |
| 176 | location.flags = 0; |
| 177 | |
| 178 | jclass locationClass = env->GetObjectClass(locationObject); |
| 179 | |
| 180 | jmethodID getLatitude = env->GetMethodID(locationClass, "getLatitude", "()D"); |
| 181 | location.latitude = env->CallDoubleMethod(locationObject, getLatitude); |
| 182 | jmethodID getLongitude = env->GetMethodID(locationClass, "getLongitude", "()D"); |
| 183 | location.longitude = env->CallDoubleMethod(locationObject, getLongitude); |
| 184 | jmethodID getTime = env->GetMethodID(locationClass, "getTime", "()J"); |
| 185 | location.timestamp = env->CallLongMethod(locationObject, getTime); |
| 186 | location.flags |= FLP_LOCATION_HAS_LAT_LONG; |
| 187 | |
| 188 | jmethodID hasAltitude = env->GetMethodID(locationClass, "hasAltitude", "()Z"); |
| 189 | if (env->CallBooleanMethod(locationObject, hasAltitude)) { |
| 190 | jmethodID getAltitude = env->GetMethodID(locationClass, "getAltitude", "()D"); |
| 191 | location.altitude = env->CallDoubleMethod(locationObject, getAltitude); |
| 192 | location.flags |= FLP_LOCATION_HAS_ALTITUDE; |
| 193 | } |
| 194 | |
| 195 | jmethodID hasSpeed = env->GetMethodID(locationClass, "hasSpeed", "()Z"); |
| 196 | if (env->CallBooleanMethod(locationObject, hasSpeed)) { |
| 197 | jmethodID getSpeed = env->GetMethodID(locationClass, "getSpeed", "()F"); |
| 198 | location.speed = env->CallFloatMethod(locationObject, getSpeed); |
| 199 | location.flags |= FLP_LOCATION_HAS_SPEED; |
| 200 | } |
| 201 | |
| 202 | jmethodID hasBearing = env->GetMethodID(locationClass, "hasBearing", "()Z"); |
| 203 | if (env->CallBooleanMethod(locationObject, hasBearing)) { |
| 204 | jmethodID getBearing = env->GetMethodID(locationClass, "getBearing", "()F"); |
| 205 | location.bearing = env->CallFloatMethod(locationObject, getBearing); |
| 206 | location.flags |= FLP_LOCATION_HAS_BEARING; |
| 207 | } |
| 208 | |
| 209 | jmethodID hasAccuracy = env->GetMethodID(locationClass, "hasAccuracy", "()Z"); |
| 210 | if (env->CallBooleanMethod(locationObject, hasAccuracy)) { |
| 211 | jmethodID getAccuracy = env->GetMethodID( |
| 212 | locationClass, |
| 213 | "getAccuracy", |
| 214 | "()F" |
| 215 | ); |
| 216 | location.accuracy = env->CallFloatMethod(locationObject, getAccuracy); |
| 217 | location.flags |= FLP_LOCATION_HAS_ACCURACY; |
| 218 | } |
| 219 | |
| 220 | // TODO: wire sources_used if Location class exposes them |
| 221 | } |
| 222 | |
| 223 | /* |
| 224 | * Helper function to unwrap FlpBatchOptions from the Java Runtime calls. |
| 225 | */ |
| 226 | static void TranslateFromObject( |
| 227 | JNIEnv* env, |
| 228 | jobject batchOptionsObject, |
| 229 | FlpBatchOptions& batchOptions) { |
| 230 | jclass batchOptionsClass = env->GetObjectClass(batchOptionsObject); |
| 231 | |
| 232 | jmethodID getMaxPower = env->GetMethodID( |
| 233 | batchOptionsClass, |
| 234 | "getMaxPowerAllocationInMW", |
| 235 | "()D" |
| 236 | ); |
| 237 | batchOptions.max_power_allocation_mW = env->CallDoubleMethod( |
| 238 | batchOptionsObject, |
| 239 | getMaxPower |
| 240 | ); |
| 241 | |
| 242 | jmethodID getPeriod = env->GetMethodID( |
| 243 | batchOptionsClass, |
| 244 | "getPeriodInNS", |
| 245 | "()J" |
| 246 | ); |
| 247 | batchOptions.period_ns = env->CallLongMethod(batchOptionsObject, getPeriod); |
| 248 | |
| 249 | jmethodID getSourcesToUse = env->GetMethodID( |
| 250 | batchOptionsClass, |
| 251 | "getSourcesToUse", |
| 252 | "()I" |
| 253 | ); |
| 254 | batchOptions.sources_to_use = env->CallIntMethod( |
| 255 | batchOptionsObject, |
| 256 | getSourcesToUse |
| 257 | ); |
| 258 | |
| 259 | jmethodID getFlags = env->GetMethodID(batchOptionsClass, "getFlags", "()I"); |
| 260 | batchOptions.flags = env->CallIntMethod(batchOptionsObject, getFlags); |
| 261 | } |
| 262 | |
| 263 | /* |
| 264 | * Helper function to transform FlpLocation into a java object. |
| 265 | */ |
| 266 | static void TranslateToObject(const FlpLocation* location, jobject& locationObject) { |
| 267 | jclass locationClass = sCallbackEnv->FindClass(LOCATION_CLASS_NAME); |
| 268 | jmethodID locationCtor = sCallbackEnv->GetMethodID( |
| 269 | locationClass, |
| 270 | "<init>", |
| 271 | "(Ljava/lang/String;)V" |
| 272 | ); |
| 273 | |
| 274 | // the provider is set in the upper JVM layer |
| 275 | locationObject = sCallbackEnv->NewObject(locationClass, locationCtor, NULL); |
| 276 | jint flags = location->flags; |
| 277 | |
| 278 | // set the valid information in the object |
| 279 | if (flags & FLP_LOCATION_HAS_LAT_LONG) { |
| 280 | jmethodID setLatitude = sCallbackEnv->GetMethodID( |
| 281 | locationClass, |
| 282 | "setLatitude", |
| 283 | "(D)V" |
| 284 | ); |
| 285 | sCallbackEnv->CallVoidMethod(locationObject, setLatitude, location->latitude); |
| 286 | |
| 287 | jmethodID setLongitude = sCallbackEnv->GetMethodID( |
| 288 | locationClass, |
| 289 | "setLongitude", |
| 290 | "(D)V" |
| 291 | ); |
| 292 | sCallbackEnv->CallVoidMethod( |
| 293 | locationObject, |
| 294 | setLongitude, |
| 295 | location->longitude |
| 296 | ); |
| 297 | |
| 298 | jmethodID setTime = sCallbackEnv->GetMethodID( |
| 299 | locationClass, |
| 300 | "setTime", |
| 301 | "(J)V" |
| 302 | ); |
| 303 | sCallbackEnv->CallVoidMethod(locationObject, setTime, location->timestamp); |
| 304 | } |
| 305 | |
| 306 | if (flags & FLP_LOCATION_HAS_ALTITUDE) { |
| 307 | jmethodID setAltitude = sCallbackEnv->GetMethodID( |
| 308 | locationClass, |
| 309 | "setAltitude", |
| 310 | "(D)V" |
| 311 | ); |
| 312 | sCallbackEnv->CallVoidMethod(locationObject, setAltitude, location->altitude); |
| 313 | } |
| 314 | |
| 315 | if (flags & FLP_LOCATION_HAS_SPEED) { |
| 316 | jmethodID setSpeed = sCallbackEnv->GetMethodID( |
| 317 | locationClass, |
| 318 | "setSpeed", |
| 319 | "(F)V" |
| 320 | ); |
| 321 | sCallbackEnv->CallVoidMethod(locationObject, setSpeed, location->speed); |
| 322 | } |
| 323 | |
| 324 | if (flags & FLP_LOCATION_HAS_BEARING) { |
| 325 | jmethodID setBearing = sCallbackEnv->GetMethodID( |
| 326 | locationClass, |
| 327 | "setBearing", |
| 328 | "(F)V" |
| 329 | ); |
| 330 | sCallbackEnv->CallVoidMethod(locationObject, setBearing, location->bearing); |
| 331 | } |
| 332 | |
| 333 | if (flags & FLP_LOCATION_HAS_ACCURACY) { |
| 334 | jmethodID setAccuracy = sCallbackEnv->GetMethodID( |
| 335 | locationClass, |
| 336 | "setAccuracy", |
| 337 | "(F)V" |
| 338 | ); |
| 339 | sCallbackEnv->CallVoidMethod(locationObject, setAccuracy, location->accuracy); |
| 340 | } |
| 341 | |
| 342 | // TODO: wire FlpLocation::sources_used when needed |
| 343 | } |
| 344 | |
| 345 | /* |
| 346 | * Helper function to serialize FlpLocation structures. |
| 347 | */ |
| 348 | static void TranslateToObjectArray( |
| 349 | int32_t locationsCount, |
| 350 | FlpLocation** locations, |
| 351 | jobjectArray& locationsArray) { |
| 352 | jclass locationClass = sCallbackEnv->FindClass(LOCATION_CLASS_NAME); |
| 353 | locationsArray = sCallbackEnv->NewObjectArray( |
| 354 | locationsCount, |
| 355 | locationClass, |
| 356 | /* initialElement */ NULL |
| 357 | ); |
| 358 | |
| 359 | for (int i = 0; i < locationsCount; ++i) { |
| 360 | jobject locationObject = NULL; |
| 361 | TranslateToObject(locations[i], locationObject); |
| 362 | sCallbackEnv->SetObjectArrayElement(locationsArray, i, locationObject); |
| 363 | sCallbackEnv->DeleteLocalRef(locationObject); |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | static void LocationCallback(int32_t locationsCount, FlpLocation** locations) { |
| 368 | if(!IsValidCallbackThread()) { |
| 369 | return; |
| 370 | } |
| 371 | |
| 372 | if(locationsCount == 0 || locations == NULL) { |
| 373 | ALOGE( |
| 374 | "Invalid LocationCallback. Count: %d, Locations: %p", |
| 375 | locationsCount, |
| 376 | locations |
| 377 | ); |
| 378 | return; |
| 379 | } |
| 380 | |
| 381 | jobjectArray locationsArray = NULL; |
| 382 | TranslateToObjectArray(locationsCount, locations, locationsArray); |
| 383 | |
| 384 | sCallbackEnv->CallVoidMethod( |
| 385 | sCallbacksObj, |
| 386 | sOnLocationReport, |
| 387 | locationsArray |
| 388 | ); |
| 389 | CheckExceptions(sCallbackEnv, __FUNCTION__); |
| 390 | } |
| 391 | |
| 392 | static void AcquireWakelock() { |
| 393 | acquire_wake_lock(PARTIAL_WAKE_LOCK, WAKE_LOCK_NAME); |
| 394 | } |
| 395 | |
| 396 | static void ReleaseWakelock() { |
| 397 | release_wake_lock(WAKE_LOCK_NAME); |
| 398 | } |
| 399 | |
| 400 | FlpCallbacks sFlpCallbacks = { |
| 401 | sizeof(FlpCallbacks), |
| 402 | LocationCallback, |
| 403 | AcquireWakelock, |
| 404 | ReleaseWakelock, |
| 405 | SetThreadEvent |
| 406 | }; |
| 407 | |
| 408 | static void ReportData(char* data, int length) { |
| 409 | jstring stringData = NULL; |
| 410 | |
| 411 | if(length != 0 && data != NULL) { |
| 412 | stringData = sCallbackEnv->NewString(reinterpret_cast<jchar*>(data), length); |
| 413 | } else { |
| 414 | ALOGE("Invalid ReportData callback. Length: %d, Data: %p", length, data); |
| 415 | return; |
| 416 | } |
| 417 | |
| 418 | sCallbackEnv->CallVoidMethod(sCallbacksObj, sOnDataReport, stringData); |
| 419 | CheckExceptions(sCallbackEnv, __FUNCTION__); |
| 420 | } |
| 421 | |
| 422 | FlpDiagnosticCallbacks sFlpDiagnosticCallbacks = { |
| 423 | sizeof(FlpDiagnosticCallbacks), |
| 424 | SetThreadEvent, |
| 425 | ReportData |
| 426 | }; |
| 427 | |
| 428 | static void GeofenceTransitionCallback( |
| 429 | int32_t geofenceId, |
| 430 | FlpLocation* location, |
| 431 | int32_t transition, |
| 432 | FlpUtcTime timestamp, |
| 433 | uint32_t sourcesUsed |
| 434 | ) { |
| 435 | if(!IsValidCallbackThread()) { |
| 436 | return; |
| 437 | } |
| 438 | |
| 439 | if(location == NULL) { |
| 440 | ALOGE("GeofenceTransition received with invalid location: %p", location); |
| 441 | return; |
| 442 | } |
| 443 | |
| 444 | jobject locationObject = NULL; |
| 445 | TranslateToObject(location, locationObject); |
| 446 | |
| 447 | sCallbackEnv->CallVoidMethod( |
| 448 | sCallbacksObj, |
| 449 | sOnGeofenceTransition, |
| 450 | geofenceId, |
| 451 | locationObject, |
| 452 | transition, |
| 453 | timestamp, |
| 454 | sourcesUsed |
| 455 | ); |
| 456 | CheckExceptions(sCallbackEnv, __FUNCTION__); |
| 457 | } |
| 458 | |
| 459 | static void GeofenceMonitorStatusCallback( |
| 460 | int32_t status, |
| 461 | uint32_t source, |
| 462 | FlpLocation* lastLocation) { |
| 463 | if(!IsValidCallbackThread()) { |
| 464 | return; |
| 465 | } |
| 466 | |
| 467 | jobject locationObject = NULL; |
| 468 | if(lastLocation != NULL) { |
| 469 | TranslateToObject(lastLocation, locationObject); |
| 470 | } |
| 471 | |
| 472 | sCallbackEnv->CallVoidMethod( |
| 473 | sCallbacksObj, |
| 474 | sOnGeofenceMonitorStatus, |
| 475 | status, |
| 476 | source, |
| 477 | locationObject |
| 478 | ); |
| 479 | CheckExceptions(sCallbackEnv, __FUNCTION__); |
| 480 | } |
| 481 | |
| 482 | static void GeofenceAddCallback(int32_t geofenceId, int32_t result) { |
| 483 | if(!IsValidCallbackThread()) { |
| 484 | return; |
| 485 | } |
| 486 | |
| 487 | sCallbackEnv->CallVoidMethod(sCallbacksObj, sOnGeofenceAdd, geofenceId, result); |
| 488 | CheckExceptions(sCallbackEnv, __FUNCTION__); |
| 489 | } |
| 490 | |
| 491 | static void GeofenceRemoveCallback(int32_t geofenceId, int32_t result) { |
| 492 | if(!IsValidCallbackThread()) { |
| 493 | return; |
| 494 | } |
| 495 | |
| 496 | sCallbackEnv->CallVoidMethod( |
| 497 | sCallbacksObj, |
| 498 | sOnGeofenceRemove, |
| 499 | geofenceId, |
| 500 | result |
| 501 | ); |
| 502 | CheckExceptions(sCallbackEnv, __FUNCTION__); |
| 503 | } |
| 504 | |
| 505 | static void GeofencePauseCallback(int32_t geofenceId, int32_t result) { |
| 506 | if(!IsValidCallbackThread()) { |
| 507 | return; |
| 508 | } |
| 509 | |
| 510 | sCallbackEnv->CallVoidMethod( |
| 511 | sCallbacksObj, |
| 512 | sOnGeofencePause, |
| 513 | geofenceId, |
| 514 | result |
| 515 | ); |
| 516 | CheckExceptions(sCallbackEnv, __FUNCTION__); |
| 517 | } |
| 518 | |
| 519 | static void GeofenceResumeCallback(int32_t geofenceId, int32_t result) { |
| 520 | if(!IsValidCallbackThread()) { |
| 521 | return; |
| 522 | } |
| 523 | |
| 524 | sCallbackEnv->CallVoidMethod( |
| 525 | sCallbacksObj, |
| 526 | sOnGeofenceResume, |
| 527 | geofenceId, |
| 528 | result |
| 529 | ); |
| 530 | CheckExceptions(sCallbackEnv, __FUNCTION__); |
| 531 | } |
| 532 | |
| 533 | FlpGeofenceCallbacks sFlpGeofenceCallbacks = { |
| 534 | sizeof(FlpGeofenceCallbacks), |
| 535 | GeofenceTransitionCallback, |
| 536 | GeofenceMonitorStatusCallback, |
| 537 | GeofenceAddCallback, |
| 538 | GeofenceRemoveCallback, |
| 539 | GeofencePauseCallback, |
| 540 | GeofenceResumeCallback, |
| 541 | SetThreadEvent |
| 542 | }; |
| 543 | |
| 544 | /* |
| 545 | * Initializes the Fused Location Provider in the native side. It ensures that |
| 546 | * the Flp interfaces are initialized properly. |
| 547 | */ |
| 548 | static void Init(JNIEnv* env, jobject obj) { |
| 549 | if(sHardwareDevice != NULL) { |
| 550 | ALOGD("Hardware Device already opened."); |
| 551 | return; |
| 552 | } |
| 553 | |
| 554 | const hw_module_t* module = NULL; |
| 555 | int err = hw_get_module(FUSED_LOCATION_HARDWARE_MODULE_ID, &module); |
| 556 | if(err != 0) { |
| 557 | ALOGE("Error hw_get_module '%s': %d", FUSED_LOCATION_HARDWARE_MODULE_ID, err); |
| 558 | return; |
| 559 | } |
| 560 | |
| 561 | err = module->methods->open( |
| 562 | module, |
| 563 | FUSED_LOCATION_HARDWARE_MODULE_ID, &sHardwareDevice); |
| 564 | if(err != 0) { |
| 565 | ALOGE("Error opening device '%s': %d", FUSED_LOCATION_HARDWARE_MODULE_ID, err); |
| 566 | return; |
| 567 | } |
| 568 | |
| 569 | sFlpInterface = NULL; |
| 570 | flp_device_t* flp_device = reinterpret_cast<flp_device_t*>(sHardwareDevice); |
| 571 | sFlpInterface = flp_device->get_flp_interface(flp_device); |
| 572 | |
| 573 | if(sFlpInterface != NULL) { |
| 574 | sFlpDiagnosticInterface = reinterpret_cast<const FlpDiagnosticInterface*>( |
| 575 | sFlpInterface->get_extension(FLP_DIAGNOSTIC_INTERFACE) |
| 576 | ); |
| 577 | |
| 578 | sFlpGeofencingInterface = reinterpret_cast<const FlpGeofencingInterface*>( |
| 579 | sFlpInterface->get_extension(FLP_GEOFENCING_INTERFACE) |
| 580 | ); |
| 581 | |
| 582 | sFlpDeviceContextInterface = reinterpret_cast<const FlpDeviceContextInterface*>( |
| 583 | sFlpInterface->get_extension(FLP_DEVICE_CONTEXT_INTERFACE) |
| 584 | ); |
| 585 | } |
| 586 | |
| 587 | if(sCallbacksObj == NULL) { |
| 588 | sCallbacksObj = env->NewGlobalRef(obj); |
| 589 | } |
| 590 | |
| 591 | // initialize the Flp interfaces |
| 592 | if(sFlpInterface == NULL || sFlpInterface->init(&sFlpCallbacks) != 0) { |
| 593 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 594 | } |
| 595 | |
| 596 | if(sFlpDiagnosticInterface != NULL) { |
| 597 | sFlpDiagnosticInterface->init(&sFlpDiagnosticCallbacks); |
| 598 | } |
| 599 | |
| 600 | if(sFlpGeofencingInterface != NULL) { |
| 601 | sFlpGeofencingInterface->init(&sFlpGeofenceCallbacks); |
| 602 | } |
| 603 | |
| 604 | // TODO: inject any device context if when needed |
| 605 | } |
| 606 | |
| 607 | static jboolean IsSupported(JNIEnv* env, jclass clazz) { |
| 608 | return sFlpInterface != NULL; |
| 609 | } |
| 610 | |
| 611 | static jint GetBatchSize(JNIEnv* env, jobject object) { |
| 612 | if(sFlpInterface == NULL) { |
| 613 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 614 | } |
| 615 | |
| 616 | return sFlpInterface->get_batch_size(); |
| 617 | } |
| 618 | |
| 619 | static void StartBatching( |
| 620 | JNIEnv* env, |
| 621 | jobject object, |
| 622 | jint id, |
| 623 | jobject optionsObject) { |
| 624 | if(sFlpInterface == NULL || optionsObject == NULL) { |
| 625 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 626 | } |
| 627 | |
| 628 | FlpBatchOptions options; |
| 629 | TranslateFromObject(env, optionsObject, options); |
| 630 | int result = sFlpInterface->start_batching(id, &options); |
| 631 | ThrowOnError(env, result, __FUNCTION__); |
| 632 | } |
| 633 | |
| 634 | static void UpdateBatchingOptions( |
| 635 | JNIEnv* env, |
| 636 | jobject object, |
| 637 | jint id, |
| 638 | jobject optionsObject) { |
| 639 | if(sFlpInterface == NULL || optionsObject == NULL) { |
| 640 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 641 | } |
| 642 | |
| 643 | FlpBatchOptions options; |
| 644 | TranslateFromObject(env, optionsObject, options); |
| 645 | int result = sFlpInterface->update_batching_options(id, &options); |
| 646 | ThrowOnError(env, result, __FUNCTION__); |
| 647 | } |
| 648 | |
| 649 | static void StopBatching(JNIEnv* env, jobject object, jint id) { |
| 650 | if(sFlpInterface == NULL) { |
| 651 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 652 | } |
| 653 | |
| 654 | sFlpInterface->stop_batching(id); |
| 655 | } |
| 656 | |
| 657 | static void Cleanup(JNIEnv* env, jobject object) { |
| 658 | if(sFlpInterface == NULL) { |
| 659 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 660 | } |
| 661 | |
| 662 | sFlpInterface->cleanup(); |
| 663 | |
| 664 | if(sCallbacksObj != NULL) { |
| 665 | env->DeleteGlobalRef(sCallbacksObj); |
| 666 | sCallbacksObj = NULL; |
| 667 | } |
| 668 | |
| 669 | sFlpInterface = NULL; |
| 670 | sFlpDiagnosticInterface = NULL; |
| 671 | sFlpDeviceContextInterface = NULL; |
| 672 | sFlpGeofencingInterface = NULL; |
| 673 | |
| 674 | if(sHardwareDevice != NULL) { |
| 675 | sHardwareDevice->close(sHardwareDevice); |
| 676 | sHardwareDevice = NULL; |
| 677 | } |
| 678 | } |
| 679 | |
| 680 | static void GetBatchedLocation(JNIEnv* env, jobject object, jint lastNLocations) { |
| 681 | if(sFlpInterface == NULL) { |
| 682 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 683 | } |
| 684 | |
| 685 | sFlpInterface->get_batched_location(lastNLocations); |
| 686 | } |
| 687 | |
| 688 | static void InjectLocation(JNIEnv* env, jobject object, jobject locationObject) { |
| 689 | if(locationObject == NULL) { |
| 690 | ALOGE("Invalid location for injection: %p", locationObject); |
| 691 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 692 | } |
| 693 | |
| 694 | if(sFlpInterface == NULL) { |
| 695 | // there is no listener, bail |
| 696 | return; |
| 697 | } |
| 698 | |
| 699 | FlpLocation location; |
| 700 | TranslateFromObject(env, locationObject, location); |
| 701 | int result = sFlpInterface->inject_location(&location); |
| 702 | if (result != FLP_RESULT_ERROR) { |
| 703 | // do not throw but log, this operation should be fire and forget |
| 704 | ALOGE("Error %d in '%s'", result, __FUNCTION__); |
| 705 | } |
| 706 | } |
| 707 | |
| 708 | static jboolean IsDiagnosticSupported() { |
| 709 | return sFlpDiagnosticInterface != NULL; |
| 710 | } |
| 711 | |
| 712 | static void InjectDiagnosticData(JNIEnv* env, jobject object, jstring stringData) { |
| 713 | if(stringData == NULL) { |
| 714 | ALOGE("Invalid diagnostic data for injection: %p", stringData); |
| 715 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 716 | } |
| 717 | |
| 718 | if(sFlpDiagnosticInterface == NULL) { |
| 719 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 720 | } |
| 721 | |
| 722 | int length = env->GetStringLength(stringData); |
| 723 | const jchar* data = env->GetStringChars(stringData, /* isCopy */ NULL); |
| 724 | if(data == NULL) { |
| 725 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 726 | } |
| 727 | |
| 728 | int result = sFlpDiagnosticInterface->inject_data((char*) data, length); |
| 729 | ThrowOnError(env, result, __FUNCTION__); |
| 730 | } |
| 731 | |
| 732 | static jboolean IsDeviceContextSupported() { |
| 733 | return sFlpDeviceContextInterface != NULL; |
| 734 | } |
| 735 | |
| 736 | static void InjectDeviceContext(JNIEnv* env, jobject object, jint enabledMask) { |
| 737 | if(sFlpDeviceContextInterface == NULL) { |
| 738 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 739 | } |
| 740 | |
| 741 | int result = sFlpDeviceContextInterface->inject_device_context(enabledMask); |
| 742 | ThrowOnError(env, result, __FUNCTION__); |
| 743 | } |
| 744 | |
| 745 | static jboolean IsGeofencingSupported() { |
| 746 | return sFlpGeofencingInterface != NULL; |
| 747 | } |
| 748 | |
| 749 | static void AddGeofences( |
| 750 | JNIEnv* env, |
| 751 | jobject object, |
| 752 | jintArray geofenceIdsArray, |
| 753 | jobjectArray geofencesArray) { |
| 754 | if(geofencesArray == NULL) { |
| 755 | ALOGE("Invalid Geofences to add: %p", geofencesArray); |
| 756 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 757 | } |
| 758 | |
| 759 | if (sFlpGeofencingInterface == NULL) { |
| 760 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 761 | } |
| 762 | |
| 763 | jint geofencesCount = env->GetArrayLength(geofenceIdsArray); |
| 764 | Geofence* geofences = new Geofence[geofencesCount]; |
| 765 | if (geofences == NULL) { |
| 766 | ThrowOnError(env, FLP_RESULT_INSUFFICIENT_MEMORY, __FUNCTION__); |
| 767 | } |
| 768 | |
| 769 | jint* ids = env->GetIntArrayElements(geofenceIdsArray, /* isCopy */ NULL); |
| 770 | for (int i = 0; i < geofencesCount; ++i) { |
| 771 | geofences[i].geofence_id = ids[i]; |
| 772 | |
| 773 | // TODO: fill in the GeofenceData |
| 774 | |
| 775 | // TODO: fill in the GeofenceOptions |
| 776 | } |
| 777 | |
| 778 | sFlpGeofencingInterface->add_geofences(geofencesCount, &geofences); |
| 779 | if (geofences != NULL) delete[] geofences; |
| 780 | } |
| 781 | |
| 782 | static void PauseGeofence(JNIEnv* env, jobject object, jint geofenceId) { |
| 783 | if(sFlpGeofencingInterface == NULL) { |
| 784 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 785 | } |
| 786 | |
| 787 | sFlpGeofencingInterface->pause_geofence(geofenceId); |
| 788 | } |
| 789 | |
| 790 | static void ResumeGeofence( |
| 791 | JNIEnv* env, |
| 792 | jobject object, |
| 793 | jint geofenceId, |
| 794 | jint monitorTransitions) { |
| 795 | if(sFlpGeofencingInterface == NULL) { |
| 796 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 797 | } |
| 798 | |
| 799 | sFlpGeofencingInterface->resume_geofence(geofenceId, monitorTransitions); |
| 800 | } |
| 801 | |
| 802 | static void ModifyGeofenceOption( |
| 803 | JNIEnv* env, |
| 804 | jobject object, |
| 805 | jint geofenceId, |
| 806 | jint lastTransition, |
| 807 | jint monitorTransitions, |
| 808 | jint notificationResponsiveness, |
| 809 | jint unknownTimer, |
| 810 | jint sourcesToUse) { |
| 811 | if(sFlpGeofencingInterface == NULL) { |
| 812 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 813 | } |
| 814 | |
| 815 | GeofenceOptions options = { |
| 816 | lastTransition, |
| 817 | monitorTransitions, |
| 818 | notificationResponsiveness, |
| 819 | unknownTimer, |
| 820 | (uint32_t)sourcesToUse |
| 821 | }; |
| 822 | |
| 823 | sFlpGeofencingInterface->modify_geofence_option(geofenceId, &options); |
| 824 | } |
| 825 | |
| 826 | static void RemoveGeofences( |
| 827 | JNIEnv* env, |
| 828 | jobject object, |
| 829 | jintArray geofenceIdsArray) { |
| 830 | if(sFlpGeofencingInterface == NULL) { |
| 831 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 832 | } |
| 833 | |
| 834 | jsize geofenceIdsCount = env->GetArrayLength(geofenceIdsArray); |
| 835 | jint* geofenceIds = env->GetIntArrayElements(geofenceIdsArray, /* isCopy */ NULL); |
| 836 | if(geofenceIds == NULL) { |
| 837 | ThrowOnError(env, FLP_RESULT_ERROR, __FUNCTION__); |
| 838 | } |
| 839 | |
| 840 | sFlpGeofencingInterface->remove_geofences(geofenceIdsCount, geofenceIds); |
| 841 | } |
| 842 | |
| 843 | static JNINativeMethod sMethods[] = { |
| 844 | //{"name", "signature", functionPointer } |
| 845 | {"nativeClassInit", "()V", reinterpret_cast<void*>(ClassInit)}, |
| 846 | {"nativeInit", "()V", reinterpret_cast<void*>(Init)}, |
| 847 | {"nativeCleanup", "()V", reinterpret_cast<void*>(Cleanup)}, |
| 848 | {"nativeIsSupported", "()Z", reinterpret_cast<void*>(IsSupported)}, |
| 849 | {"nativeGetBatchSize", "()I", reinterpret_cast<void*>(GetBatchSize)}, |
| 850 | {"nativeStartBatching", |
| 851 | "(ILandroid/location/FusedBatchOptions;)V", |
| 852 | reinterpret_cast<void*>(StartBatching)}, |
| 853 | {"nativeUpdateBatchingOptions", |
| 854 | "(ILandroid/location/FusedBatchOptions;)V", |
| 855 | reinterpret_cast<void*>(UpdateBatchingOptions)}, |
| 856 | {"nativeStopBatching", "(I)V", reinterpret_cast<void*>(StopBatching)}, |
| 857 | {"nativeRequestBatchedLocation", |
| 858 | "(I)V", |
| 859 | reinterpret_cast<void*>(GetBatchedLocation)}, |
| 860 | {"nativeInjectLocation", |
| 861 | "(Landroid/location/Location;)V", |
| 862 | reinterpret_cast<void*>(InjectLocation)}, |
| 863 | {"nativeIsDiagnosticSupported", |
| 864 | "()Z", |
| 865 | reinterpret_cast<void*>(IsDiagnosticSupported)}, |
| 866 | {"nativeInjectDiagnosticData", |
| 867 | "(Ljava/lang/String;)V", |
| 868 | reinterpret_cast<void*>(InjectDiagnosticData)}, |
| 869 | {"nativeIsDeviceContextSupported", |
| 870 | "()Z", |
| 871 | reinterpret_cast<void*>(IsDeviceContextSupported)}, |
| 872 | {"nativeInjectDeviceContext", |
| 873 | "(I)V", |
| 874 | reinterpret_cast<void*>(InjectDeviceContext)}, |
| 875 | {"nativeIsGeofencingSupported", |
| 876 | "()Z", |
| 877 | reinterpret_cast<void*>(IsGeofencingSupported)}, |
| 878 | {"nativeAddGeofences", |
| 879 | "([I[Landroid/location/Geofence;)V", |
| 880 | reinterpret_cast<void*>(AddGeofences)}, |
| 881 | {"nativePauseGeofence", "(I)V", reinterpret_cast<void*>(PauseGeofence)}, |
| 882 | {"nativeResumeGeofence", "(II)V", reinterpret_cast<void*>(ResumeGeofence)}, |
| 883 | {"nativeModifyGeofenceOption", |
| 884 | "(IIIIII)V", |
| 885 | reinterpret_cast<void*>(ModifyGeofenceOption)}, |
| 886 | {"nativeRemoveGeofences", "([I)V", reinterpret_cast<void*>(RemoveGeofences)} |
| 887 | }; |
| 888 | |
| 889 | /* |
| 890 | * Registration method invoked on JNI Load. |
| 891 | */ |
| 892 | int register_android_server_location_FlpHardwareProvider(JNIEnv* env) { |
| 893 | return jniRegisterNativeMethods( |
| 894 | env, |
| 895 | "com/android/server/location/FlpHardwareProvider", |
| 896 | sMethods, |
| 897 | NELEM(sMethods) |
| 898 | ); |
| 899 | } |
| 900 | |
| 901 | } /* name-space Android */ |