1 /* 2 * Copyright (C) 2010 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 17 #define LOG_TAG "MtpDatabaseJNI" 18 #include "utils/Log.h" 19 20 #include <stdio.h> 21 #include <assert.h> 22 #include <limits.h> 23 #include <unistd.h> 24 #include <fcntl.h> 25 26 #include "jni.h" 27 #include "JNIHelp.h" 28 #include "android_runtime/AndroidRuntime.h" 29 30 #include "MtpDatabase.h" 31 #include "MtpDataPacket.h" 32 #include "MtpObjectInfo.h" 33 #include "MtpProperty.h" 34 #include "MtpStringBuffer.h" 35 #include "MtpUtils.h" 36 #include "mtp.h" 37 38 extern "C" { 39 #include "jhead.h" 40 } 41 42 using namespace android; 43 44 // ---------------------------------------------------------------------------- 45 46 static jmethodID method_beginSendObject; 47 static jmethodID method_endSendObject; 48 static jmethodID method_getObjectList; 49 static jmethodID method_getNumObjects; 50 static jmethodID method_getSupportedPlaybackFormats; 51 static jmethodID method_getSupportedCaptureFormats; 52 static jmethodID method_getSupportedObjectProperties; 53 static jmethodID method_getSupportedDeviceProperties; 54 static jmethodID method_setObjectProperty; 55 static jmethodID method_getDeviceProperty; 56 static jmethodID method_setDeviceProperty; 57 static jmethodID method_getObjectPropertyList; 58 static jmethodID method_getObjectInfo; 59 static jmethodID method_getObjectFilePath; 60 static jmethodID method_deleteFile; 61 static jmethodID method_getObjectReferences; 62 static jmethodID method_setObjectReferences; 63 static jmethodID method_sessionStarted; 64 static jmethodID method_sessionEnded; 65 66 static jfieldID field_context; 67 68 // MtpPropertyList fields 69 static jfieldID field_mCount; 70 static jfieldID field_mResult; 71 static jfieldID field_mObjectHandles; 72 static jfieldID field_mPropertyCodes; 73 static jfieldID field_mDataTypes; 74 static jfieldID field_mLongValues; 75 static jfieldID field_mStringValues; 76 77 78 MtpDatabase* getMtpDatabase(JNIEnv *env, jobject database) { 79 return (MtpDatabase *)env->GetIntField(database, field_context); 80 } 81 82 // ---------------------------------------------------------------------------- 83 84 class MyMtpDatabase : public MtpDatabase { 85 private: 86 jobject mDatabase; 87 jintArray mIntBuffer; 88 jlongArray mLongBuffer; 89 jcharArray mStringBuffer; 90 91 public: 92 MyMtpDatabase(JNIEnv *env, jobject client); 93 virtual ~MyMtpDatabase(); 94 void cleanup(JNIEnv *env); 95 96 virtual MtpObjectHandle beginSendObject(const char* path, 97 MtpObjectFormat format, 98 MtpObjectHandle parent, 99 MtpStorageID storage, 100 uint64_t size, 101 time_t modified); 102 103 virtual void endSendObject(const char* path, 104 MtpObjectHandle handle, 105 MtpObjectFormat format, 106 bool succeeded); 107 108 virtual MtpObjectHandleList* getObjectList(MtpStorageID storageID, 109 MtpObjectFormat format, 110 MtpObjectHandle parent); 111 112 virtual int getNumObjects(MtpStorageID storageID, 113 MtpObjectFormat format, 114 MtpObjectHandle parent); 115 116 // callee should delete[] the results from these 117 // results can be NULL 118 virtual MtpObjectFormatList* getSupportedPlaybackFormats(); 119 virtual MtpObjectFormatList* getSupportedCaptureFormats(); 120 virtual MtpObjectPropertyList* getSupportedObjectProperties(MtpObjectFormat format); 121 virtual MtpDevicePropertyList* getSupportedDeviceProperties(); 122 123 virtual MtpResponseCode getObjectPropertyValue(MtpObjectHandle handle, 124 MtpObjectProperty property, 125 MtpDataPacket& packet); 126 127 virtual MtpResponseCode setObjectPropertyValue(MtpObjectHandle handle, 128 MtpObjectProperty property, 129 MtpDataPacket& packet); 130 131 virtual MtpResponseCode getDevicePropertyValue(MtpDeviceProperty property, 132 MtpDataPacket& packet); 133 134 virtual MtpResponseCode setDevicePropertyValue(MtpDeviceProperty property, 135 MtpDataPacket& packet); 136 137 virtual MtpResponseCode resetDeviceProperty(MtpDeviceProperty property); 138 139 virtual MtpResponseCode getObjectPropertyList(MtpObjectHandle handle, 140 uint32_t format, uint32_t property, 141 int groupCode, int depth, 142 MtpDataPacket& packet); 143 144 virtual MtpResponseCode getObjectInfo(MtpObjectHandle handle, 145 MtpObjectInfo& info); 146 147 virtual void* getThumbnail(MtpObjectHandle handle, size_t& outThumbSize); 148 149 virtual MtpResponseCode getObjectFilePath(MtpObjectHandle handle, 150 MtpString& outFilePath, 151 int64_t& outFileLength, 152 MtpObjectFormat& outFormat); 153 virtual MtpResponseCode deleteFile(MtpObjectHandle handle); 154 155 bool getObjectPropertyInfo(MtpObjectProperty property, int& type); 156 bool getDevicePropertyInfo(MtpDeviceProperty property, int& type); 157 158 virtual MtpObjectHandleList* getObjectReferences(MtpObjectHandle handle); 159 160 virtual MtpResponseCode setObjectReferences(MtpObjectHandle handle, 161 MtpObjectHandleList* references); 162 163 virtual MtpProperty* getObjectPropertyDesc(MtpObjectProperty property, 164 MtpObjectFormat format); 165 166 virtual MtpProperty* getDevicePropertyDesc(MtpDeviceProperty property); 167 168 virtual void sessionStarted(); 169 170 virtual void sessionEnded(); 171 }; 172 173 // ---------------------------------------------------------------------------- 174 175 static void checkAndClearExceptionFromCallback(JNIEnv* env, const char* methodName) { 176 if (env->ExceptionCheck()) { 177 ALOGE("An exception was thrown by callback '%s'.", methodName); 178 LOGE_EX(env); 179 env->ExceptionClear(); 180 } 181 } 182 183 // ---------------------------------------------------------------------------- 184 185 MyMtpDatabase::MyMtpDatabase(JNIEnv *env, jobject client) 186 : mDatabase(env->NewGlobalRef(client)), 187 mIntBuffer(NULL), 188 mLongBuffer(NULL), 189 mStringBuffer(NULL) 190 { 191 // create buffers for out arguments 192 // we don't need to be thread-safe so this is OK 193 jintArray intArray = env->NewIntArray(3); 194 if (!intArray) { 195 return; // Already threw. 196 } 197 mIntBuffer = (jintArray)env->NewGlobalRef(intArray); 198 jlongArray longArray = env->NewLongArray(2); 199 if (!longArray) { 200 return; // Already threw. 201 } 202 mLongBuffer = (jlongArray)env->NewGlobalRef(longArray); 203 jcharArray charArray = env->NewCharArray(256); 204 if (!charArray) { 205 return; // Already threw. 206 } 207 mStringBuffer = (jcharArray)env->NewGlobalRef(charArray); 208 } 209 210 void MyMtpDatabase::cleanup(JNIEnv *env) { 211 env->DeleteGlobalRef(mDatabase); 212 env->DeleteGlobalRef(mIntBuffer); 213 env->DeleteGlobalRef(mLongBuffer); 214 env->DeleteGlobalRef(mStringBuffer); 215 } 216 217 MyMtpDatabase::~MyMtpDatabase() { 218 } 219 220 MtpObjectHandle MyMtpDatabase::beginSendObject(const char* path, 221 MtpObjectFormat format, 222 MtpObjectHandle parent, 223 MtpStorageID storage, 224 uint64_t size, 225 time_t modified) { 226 JNIEnv* env = AndroidRuntime::getJNIEnv(); 227 jstring pathStr = env->NewStringUTF(path); 228 MtpObjectHandle result = env->CallIntMethod(mDatabase, method_beginSendObject, 229 pathStr, (jint)format, (jint)parent, (jint)storage, 230 (jlong)size, (jlong)modified); 231 232 if (pathStr) 233 env->DeleteLocalRef(pathStr); 234 checkAndClearExceptionFromCallback(env, __FUNCTION__); 235 return result; 236 } 237 238 void MyMtpDatabase::endSendObject(const char* path, MtpObjectHandle handle, 239 MtpObjectFormat format, bool succeeded) { 240 JNIEnv* env = AndroidRuntime::getJNIEnv(); 241 jstring pathStr = env->NewStringUTF(path); 242 env->CallVoidMethod(mDatabase, method_endSendObject, pathStr, 243 (jint)handle, (jint)format, (jboolean)succeeded); 244 245 if (pathStr) 246 env->DeleteLocalRef(pathStr); 247 checkAndClearExceptionFromCallback(env, __FUNCTION__); 248 } 249 250 MtpObjectHandleList* MyMtpDatabase::getObjectList(MtpStorageID storageID, 251 MtpObjectFormat format, 252 MtpObjectHandle parent) { 253 JNIEnv* env = AndroidRuntime::getJNIEnv(); 254 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, method_getObjectList, 255 (jint)storageID, (jint)format, (jint)parent); 256 if (!array) 257 return NULL; 258 MtpObjectHandleList* list = new MtpObjectHandleList(); 259 jint* handles = env->GetIntArrayElements(array, 0); 260 jsize length = env->GetArrayLength(array); 261 for (int i = 0; i < length; i++) 262 list->push(handles[i]); 263 env->ReleaseIntArrayElements(array, handles, 0); 264 env->DeleteLocalRef(array); 265 266 checkAndClearExceptionFromCallback(env, __FUNCTION__); 267 return list; 268 } 269 270 int MyMtpDatabase::getNumObjects(MtpStorageID storageID, 271 MtpObjectFormat format, 272 MtpObjectHandle parent) { 273 JNIEnv* env = AndroidRuntime::getJNIEnv(); 274 int result = env->CallIntMethod(mDatabase, method_getNumObjects, 275 (jint)storageID, (jint)format, (jint)parent); 276 277 checkAndClearExceptionFromCallback(env, __FUNCTION__); 278 return result; 279 } 280 281 MtpObjectFormatList* MyMtpDatabase::getSupportedPlaybackFormats() { 282 JNIEnv* env = AndroidRuntime::getJNIEnv(); 283 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 284 method_getSupportedPlaybackFormats); 285 if (!array) 286 return NULL; 287 MtpObjectFormatList* list = new MtpObjectFormatList(); 288 jint* formats = env->GetIntArrayElements(array, 0); 289 jsize length = env->GetArrayLength(array); 290 for (int i = 0; i < length; i++) 291 list->push(formats[i]); 292 env->ReleaseIntArrayElements(array, formats, 0); 293 env->DeleteLocalRef(array); 294 295 checkAndClearExceptionFromCallback(env, __FUNCTION__); 296 return list; 297 } 298 299 MtpObjectFormatList* MyMtpDatabase::getSupportedCaptureFormats() { 300 JNIEnv* env = AndroidRuntime::getJNIEnv(); 301 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 302 method_getSupportedCaptureFormats); 303 if (!array) 304 return NULL; 305 MtpObjectFormatList* list = new MtpObjectFormatList(); 306 jint* formats = env->GetIntArrayElements(array, 0); 307 jsize length = env->GetArrayLength(array); 308 for (int i = 0; i < length; i++) 309 list->push(formats[i]); 310 env->ReleaseIntArrayElements(array, formats, 0); 311 env->DeleteLocalRef(array); 312 313 checkAndClearExceptionFromCallback(env, __FUNCTION__); 314 return list; 315 } 316 317 MtpObjectPropertyList* MyMtpDatabase::getSupportedObjectProperties(MtpObjectFormat format) { 318 JNIEnv* env = AndroidRuntime::getJNIEnv(); 319 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 320 method_getSupportedObjectProperties, (jint)format); 321 if (!array) 322 return NULL; 323 MtpObjectPropertyList* list = new MtpObjectPropertyList(); 324 jint* properties = env->GetIntArrayElements(array, 0); 325 jsize length = env->GetArrayLength(array); 326 for (int i = 0; i < length; i++) 327 list->push(properties[i]); 328 env->ReleaseIntArrayElements(array, properties, 0); 329 env->DeleteLocalRef(array); 330 331 checkAndClearExceptionFromCallback(env, __FUNCTION__); 332 return list; 333 } 334 335 MtpDevicePropertyList* MyMtpDatabase::getSupportedDeviceProperties() { 336 JNIEnv* env = AndroidRuntime::getJNIEnv(); 337 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 338 method_getSupportedDeviceProperties); 339 if (!array) 340 return NULL; 341 MtpDevicePropertyList* list = new MtpDevicePropertyList(); 342 jint* properties = env->GetIntArrayElements(array, 0); 343 jsize length = env->GetArrayLength(array); 344 for (int i = 0; i < length; i++) 345 list->push(properties[i]); 346 env->ReleaseIntArrayElements(array, properties, 0); 347 env->DeleteLocalRef(array); 348 349 checkAndClearExceptionFromCallback(env, __FUNCTION__); 350 return list; 351 } 352 353 MtpResponseCode MyMtpDatabase::getObjectPropertyValue(MtpObjectHandle handle, 354 MtpObjectProperty property, 355 MtpDataPacket& packet) { 356 JNIEnv* env = AndroidRuntime::getJNIEnv(); 357 jobject list = env->CallObjectMethod(mDatabase, method_getObjectPropertyList, 358 (jlong)handle, 0, (jlong)property, 0, 0); 359 MtpResponseCode result = env->GetIntField(list, field_mResult); 360 int count = env->GetIntField(list, field_mCount); 361 if (result == MTP_RESPONSE_OK && count != 1) 362 result = MTP_RESPONSE_GENERAL_ERROR; 363 364 if (result == MTP_RESPONSE_OK) { 365 jintArray objectHandlesArray = (jintArray)env->GetObjectField(list, field_mObjectHandles); 366 jintArray propertyCodesArray = (jintArray)env->GetObjectField(list, field_mPropertyCodes); 367 jintArray dataTypesArray = (jintArray)env->GetObjectField(list, field_mDataTypes); 368 jlongArray longValuesArray = (jlongArray)env->GetObjectField(list, field_mLongValues); 369 jobjectArray stringValuesArray = (jobjectArray)env->GetObjectField(list, field_mStringValues); 370 371 jint* objectHandles = env->GetIntArrayElements(objectHandlesArray, 0); 372 jint* propertyCodes = env->GetIntArrayElements(propertyCodesArray, 0); 373 jint* dataTypes = env->GetIntArrayElements(dataTypesArray, 0); 374 jlong* longValues = (longValuesArray ? env->GetLongArrayElements(longValuesArray, 0) : NULL); 375 376 int type = dataTypes[0]; 377 jlong longValue = (longValues ? longValues[0] : 0); 378 379 // special case date properties, which are strings to MTP 380 // but stored internally as a uint64 381 if (property == MTP_PROPERTY_DATE_MODIFIED || property == MTP_PROPERTY_DATE_ADDED) { 382 char date[20]; 383 formatDateTime(longValue, date, sizeof(date)); 384 packet.putString(date); 385 goto out; 386 } 387 // release date is stored internally as just the year 388 if (property == MTP_PROPERTY_ORIGINAL_RELEASE_DATE) { 389 char date[20]; 390 snprintf(date, sizeof(date), "%04lld0101T000000", longValue); 391 packet.putString(date); 392 goto out; 393 } 394 395 switch (type) { 396 case MTP_TYPE_INT8: 397 packet.putInt8(longValue); 398 break; 399 case MTP_TYPE_UINT8: 400 packet.putUInt8(longValue); 401 break; 402 case MTP_TYPE_INT16: 403 packet.putInt16(longValue); 404 break; 405 case MTP_TYPE_UINT16: 406 packet.putUInt16(longValue); 407 break; 408 case MTP_TYPE_INT32: 409 packet.putInt32(longValue); 410 break; 411 case MTP_TYPE_UINT32: 412 packet.putUInt32(longValue); 413 break; 414 case MTP_TYPE_INT64: 415 packet.putInt64(longValue); 416 break; 417 case MTP_TYPE_UINT64: 418 packet.putUInt64(longValue); 419 break; 420 case MTP_TYPE_INT128: 421 packet.putInt128(longValue); 422 break; 423 case MTP_TYPE_UINT128: 424 packet.putInt128(longValue); 425 break; 426 case MTP_TYPE_STR: 427 { 428 jstring stringValue = (jstring)env->GetObjectArrayElement(stringValuesArray, 0); 429 if (stringValue) { 430 const char* str = env->GetStringUTFChars(stringValue, NULL); 431 if (str == NULL) { 432 return MTP_RESPONSE_GENERAL_ERROR; 433 } 434 packet.putString(str); 435 env->ReleaseStringUTFChars(stringValue, str); 436 } else { 437 packet.putEmptyString(); 438 } 439 break; 440 } 441 default: 442 ALOGE("unsupported type in getObjectPropertyValue\n"); 443 result = MTP_RESPONSE_INVALID_OBJECT_PROP_FORMAT; 444 } 445 out: 446 env->ReleaseIntArrayElements(objectHandlesArray, objectHandles, 0); 447 env->ReleaseIntArrayElements(propertyCodesArray, propertyCodes, 0); 448 env->ReleaseIntArrayElements(dataTypesArray, dataTypes, 0); 449 if (longValues) 450 env->ReleaseLongArrayElements(longValuesArray, longValues, 0); 451 452 env->DeleteLocalRef(objectHandlesArray); 453 env->DeleteLocalRef(propertyCodesArray); 454 env->DeleteLocalRef(dataTypesArray); 455 if (longValuesArray) 456 env->DeleteLocalRef(longValuesArray); 457 if (stringValuesArray) 458 env->DeleteLocalRef(stringValuesArray); 459 } 460 461 env->DeleteLocalRef(list); 462 checkAndClearExceptionFromCallback(env, __FUNCTION__); 463 return result; 464 } 465 466 MtpResponseCode MyMtpDatabase::setObjectPropertyValue(MtpObjectHandle handle, 467 MtpObjectProperty property, 468 MtpDataPacket& packet) { 469 int type; 470 471 if (!getObjectPropertyInfo(property, type)) 472 return MTP_RESPONSE_OBJECT_PROP_NOT_SUPPORTED; 473 474 JNIEnv* env = AndroidRuntime::getJNIEnv(); 475 jlong longValue = 0; 476 jstring stringValue = NULL; 477 478 switch (type) { 479 case MTP_TYPE_INT8: 480 longValue = packet.getInt8(); 481 break; 482 case MTP_TYPE_UINT8: 483 longValue = packet.getUInt8(); 484 break; 485 case MTP_TYPE_INT16: 486 longValue = packet.getInt16(); 487 break; 488 case MTP_TYPE_UINT16: 489 longValue = packet.getUInt16(); 490 break; 491 case MTP_TYPE_INT32: 492 longValue = packet.getInt32(); 493 break; 494 case MTP_TYPE_UINT32: 495 longValue = packet.getUInt32(); 496 break; 497 case MTP_TYPE_INT64: 498 longValue = packet.getInt64(); 499 break; 500 case MTP_TYPE_UINT64: 501 longValue = packet.getUInt64(); 502 break; 503 case MTP_TYPE_STR: 504 { 505 MtpStringBuffer buffer; 506 packet.getString(buffer); 507 stringValue = env->NewStringUTF((const char *)buffer); 508 break; 509 } 510 default: 511 ALOGE("unsupported type in getObjectPropertyValue\n"); 512 return MTP_RESPONSE_INVALID_OBJECT_PROP_FORMAT; 513 } 514 515 jint result = env->CallIntMethod(mDatabase, method_setObjectProperty, 516 (jint)handle, (jint)property, longValue, stringValue); 517 if (stringValue) 518 env->DeleteLocalRef(stringValue); 519 520 checkAndClearExceptionFromCallback(env, __FUNCTION__); 521 return result; 522 } 523 524 MtpResponseCode MyMtpDatabase::getDevicePropertyValue(MtpDeviceProperty property, 525 MtpDataPacket& packet) { 526 int type; 527 528 if (!getDevicePropertyInfo(property, type)) 529 return MTP_RESPONSE_DEVICE_PROP_NOT_SUPPORTED; 530 531 JNIEnv* env = AndroidRuntime::getJNIEnv(); 532 jint result = env->CallIntMethod(mDatabase, method_getDeviceProperty, 533 (jint)property, mLongBuffer, mStringBuffer); 534 if (result != MTP_RESPONSE_OK) { 535 checkAndClearExceptionFromCallback(env, __FUNCTION__); 536 return result; 537 } 538 539 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 540 jlong longValue = longValues[0]; 541 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 542 543 switch (type) { 544 case MTP_TYPE_INT8: 545 packet.putInt8(longValue); 546 break; 547 case MTP_TYPE_UINT8: 548 packet.putUInt8(longValue); 549 break; 550 case MTP_TYPE_INT16: 551 packet.putInt16(longValue); 552 break; 553 case MTP_TYPE_UINT16: 554 packet.putUInt16(longValue); 555 break; 556 case MTP_TYPE_INT32: 557 packet.putInt32(longValue); 558 break; 559 case MTP_TYPE_UINT32: 560 packet.putUInt32(longValue); 561 break; 562 case MTP_TYPE_INT64: 563 packet.putInt64(longValue); 564 break; 565 case MTP_TYPE_UINT64: 566 packet.putUInt64(longValue); 567 break; 568 case MTP_TYPE_INT128: 569 packet.putInt128(longValue); 570 break; 571 case MTP_TYPE_UINT128: 572 packet.putInt128(longValue); 573 break; 574 case MTP_TYPE_STR: 575 { 576 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 577 packet.putString(str); 578 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 579 break; 580 } 581 default: 582 ALOGE("unsupported type in getDevicePropertyValue\n"); 583 return MTP_RESPONSE_INVALID_DEVICE_PROP_FORMAT; 584 } 585 586 checkAndClearExceptionFromCallback(env, __FUNCTION__); 587 return MTP_RESPONSE_OK; 588 } 589 590 MtpResponseCode MyMtpDatabase::setDevicePropertyValue(MtpDeviceProperty property, 591 MtpDataPacket& packet) { 592 int type; 593 594 if (!getDevicePropertyInfo(property, type)) 595 return MTP_RESPONSE_DEVICE_PROP_NOT_SUPPORTED; 596 597 JNIEnv* env = AndroidRuntime::getJNIEnv(); 598 jlong longValue = 0; 599 jstring stringValue = NULL; 600 601 switch (type) { 602 case MTP_TYPE_INT8: 603 longValue = packet.getInt8(); 604 break; 605 case MTP_TYPE_UINT8: 606 longValue = packet.getUInt8(); 607 break; 608 case MTP_TYPE_INT16: 609 longValue = packet.getInt16(); 610 break; 611 case MTP_TYPE_UINT16: 612 longValue = packet.getUInt16(); 613 break; 614 case MTP_TYPE_INT32: 615 longValue = packet.getInt32(); 616 break; 617 case MTP_TYPE_UINT32: 618 longValue = packet.getUInt32(); 619 break; 620 case MTP_TYPE_INT64: 621 longValue = packet.getInt64(); 622 break; 623 case MTP_TYPE_UINT64: 624 longValue = packet.getUInt64(); 625 break; 626 case MTP_TYPE_STR: 627 { 628 MtpStringBuffer buffer; 629 packet.getString(buffer); 630 stringValue = env->NewStringUTF((const char *)buffer); 631 break; 632 } 633 default: 634 ALOGE("unsupported type in setDevicePropertyValue\n"); 635 return MTP_RESPONSE_INVALID_OBJECT_PROP_FORMAT; 636 } 637 638 jint result = env->CallIntMethod(mDatabase, method_setDeviceProperty, 639 (jint)property, longValue, stringValue); 640 if (stringValue) 641 env->DeleteLocalRef(stringValue); 642 643 checkAndClearExceptionFromCallback(env, __FUNCTION__); 644 return result; 645 } 646 647 MtpResponseCode MyMtpDatabase::resetDeviceProperty(MtpDeviceProperty property) { 648 return -1; 649 } 650 651 MtpResponseCode MyMtpDatabase::getObjectPropertyList(MtpObjectHandle handle, 652 uint32_t format, uint32_t property, 653 int groupCode, int depth, 654 MtpDataPacket& packet) { 655 JNIEnv* env = AndroidRuntime::getJNIEnv(); 656 jobject list = env->CallObjectMethod(mDatabase, method_getObjectPropertyList, 657 (jlong)handle, (jint)format, (jlong)property, (jint)groupCode, (jint)depth); 658 checkAndClearExceptionFromCallback(env, __FUNCTION__); 659 if (!list) 660 return MTP_RESPONSE_GENERAL_ERROR; 661 int count = env->GetIntField(list, field_mCount); 662 MtpResponseCode result = env->GetIntField(list, field_mResult); 663 664 packet.putUInt32(count); 665 if (count > 0) { 666 jintArray objectHandlesArray = (jintArray)env->GetObjectField(list, field_mObjectHandles); 667 jintArray propertyCodesArray = (jintArray)env->GetObjectField(list, field_mPropertyCodes); 668 jintArray dataTypesArray = (jintArray)env->GetObjectField(list, field_mDataTypes); 669 jlongArray longValuesArray = (jlongArray)env->GetObjectField(list, field_mLongValues); 670 jobjectArray stringValuesArray = (jobjectArray)env->GetObjectField(list, field_mStringValues); 671 672 jint* objectHandles = env->GetIntArrayElements(objectHandlesArray, 0); 673 jint* propertyCodes = env->GetIntArrayElements(propertyCodesArray, 0); 674 jint* dataTypes = env->GetIntArrayElements(dataTypesArray, 0); 675 jlong* longValues = (longValuesArray ? env->GetLongArrayElements(longValuesArray, 0) : NULL); 676 677 for (int i = 0; i < count; i++) { 678 packet.putUInt32(objectHandles[i]); 679 packet.putUInt16(propertyCodes[i]); 680 int type = dataTypes[i]; 681 packet.putUInt16(type); 682 683 switch (type) { 684 case MTP_TYPE_INT8: 685 packet.putInt8(longValues[i]); 686 break; 687 case MTP_TYPE_UINT8: 688 packet.putUInt8(longValues[i]); 689 break; 690 case MTP_TYPE_INT16: 691 packet.putInt16(longValues[i]); 692 break; 693 case MTP_TYPE_UINT16: 694 packet.putUInt16(longValues[i]); 695 break; 696 case MTP_TYPE_INT32: 697 packet.putInt32(longValues[i]); 698 break; 699 case MTP_TYPE_UINT32: 700 packet.putUInt32(longValues[i]); 701 break; 702 case MTP_TYPE_INT64: 703 packet.putInt64(longValues[i]); 704 break; 705 case MTP_TYPE_UINT64: 706 packet.putUInt64(longValues[i]); 707 break; 708 case MTP_TYPE_INT128: 709 packet.putInt128(longValues[i]); 710 break; 711 case MTP_TYPE_UINT128: 712 packet.putUInt128(longValues[i]); 713 break; 714 case MTP_TYPE_STR: { 715 jstring value = (jstring)env->GetObjectArrayElement(stringValuesArray, i); 716 const char *valueStr = (value ? env->GetStringUTFChars(value, NULL) : NULL); 717 if (valueStr) { 718 packet.putString(valueStr); 719 env->ReleaseStringUTFChars(value, valueStr); 720 } else { 721 packet.putEmptyString(); 722 } 723 env->DeleteLocalRef(value); 724 break; 725 } 726 default: 727 ALOGE("bad or unsupported data type in MyMtpDatabase::getObjectPropertyList"); 728 break; 729 } 730 } 731 732 env->ReleaseIntArrayElements(objectHandlesArray, objectHandles, 0); 733 env->ReleaseIntArrayElements(propertyCodesArray, propertyCodes, 0); 734 env->ReleaseIntArrayElements(dataTypesArray, dataTypes, 0); 735 if (longValues) 736 env->ReleaseLongArrayElements(longValuesArray, longValues, 0); 737 738 env->DeleteLocalRef(objectHandlesArray); 739 env->DeleteLocalRef(propertyCodesArray); 740 env->DeleteLocalRef(dataTypesArray); 741 if (longValuesArray) 742 env->DeleteLocalRef(longValuesArray); 743 if (stringValuesArray) 744 env->DeleteLocalRef(stringValuesArray); 745 } 746 747 env->DeleteLocalRef(list); 748 checkAndClearExceptionFromCallback(env, __FUNCTION__); 749 return result; 750 } 751 752 MtpResponseCode MyMtpDatabase::getObjectInfo(MtpObjectHandle handle, 753 MtpObjectInfo& info) { 754 char date[20]; 755 MtpString path; 756 int64_t length; 757 MtpObjectFormat format; 758 759 MtpResponseCode result = getObjectFilePath(handle, path, length, format); 760 if (result != MTP_RESPONSE_OK) { 761 return result; 762 } 763 info.mCompressedSize = (length > 0xFFFFFFFFLL ? 0xFFFFFFFF : (uint32_t)length); 764 765 JNIEnv* env = AndroidRuntime::getJNIEnv(); 766 if (!env->CallBooleanMethod(mDatabase, method_getObjectInfo, 767 (jint)handle, mIntBuffer, mStringBuffer, mLongBuffer)) { 768 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 769 } 770 771 jint* intValues = env->GetIntArrayElements(mIntBuffer, 0); 772 info.mStorageID = intValues[0]; 773 info.mFormat = intValues[1]; 774 info.mParent = intValues[2]; 775 env->ReleaseIntArrayElements(mIntBuffer, intValues, 0); 776 777 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 778 info.mDateCreated = longValues[0]; 779 info.mDateModified = longValues[1]; 780 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 781 782 // info.mAssociationType = (format == MTP_FORMAT_ASSOCIATION ? 783 // MTP_ASSOCIATION_TYPE_GENERIC_FOLDER : 784 // MTP_ASSOCIATION_TYPE_UNDEFINED); 785 info.mAssociationType = MTP_ASSOCIATION_TYPE_UNDEFINED; 786 787 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 788 MtpString temp(str); 789 info.mName = strdup((const char *)temp); 790 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 791 792 // read EXIF data for thumbnail information 793 if (info.mFormat == MTP_FORMAT_EXIF_JPEG || info.mFormat == MTP_FORMAT_JFIF) { 794 ResetJpgfile(); 795 // Start with an empty image information structure. 796 memset(&ImageInfo, 0, sizeof(ImageInfo)); 797 ImageInfo.FlashUsed = -1; 798 ImageInfo.MeteringMode = -1; 799 ImageInfo.Whitebalance = -1; 800 strncpy(ImageInfo.FileName, (const char *)path, PATH_MAX); 801 if (ReadJpegFile((const char*)path, READ_METADATA)) { 802 Section_t* section = FindSection(M_EXIF); 803 if (section) { 804 info.mThumbCompressedSize = ImageInfo.ThumbnailSize; 805 info.mThumbFormat = MTP_FORMAT_EXIF_JPEG; 806 info.mImagePixWidth = ImageInfo.Width; 807 info.mImagePixHeight = ImageInfo.Height; 808 } 809 } 810 DiscardData(); 811 } 812 813 checkAndClearExceptionFromCallback(env, __FUNCTION__); 814 return MTP_RESPONSE_OK; 815 } 816 817 void* MyMtpDatabase::getThumbnail(MtpObjectHandle handle, size_t& outThumbSize) { 818 MtpString path; 819 int64_t length; 820 MtpObjectFormat format; 821 void* result = NULL; 822 outThumbSize = 0; 823 824 if (getObjectFilePath(handle, path, length, format) == MTP_RESPONSE_OK 825 && (format == MTP_FORMAT_EXIF_JPEG || format == MTP_FORMAT_JFIF)) { 826 ResetJpgfile(); 827 // Start with an empty image information structure. 828 memset(&ImageInfo, 0, sizeof(ImageInfo)); 829 ImageInfo.FlashUsed = -1; 830 ImageInfo.MeteringMode = -1; 831 ImageInfo.Whitebalance = -1; 832 strncpy(ImageInfo.FileName, (const char *)path, PATH_MAX); 833 if (ReadJpegFile((const char*)path, READ_METADATA)) { 834 Section_t* section = FindSection(M_EXIF); 835 if (section) { 836 outThumbSize = ImageInfo.ThumbnailSize; 837 result = malloc(outThumbSize); 838 if (result) 839 memcpy(result, section->Data + ImageInfo.ThumbnailOffset + 8, outThumbSize); 840 } 841 DiscardData(); 842 } 843 } 844 845 return result; 846 } 847 848 MtpResponseCode MyMtpDatabase::getObjectFilePath(MtpObjectHandle handle, 849 MtpString& outFilePath, 850 int64_t& outFileLength, 851 MtpObjectFormat& outFormat) { 852 JNIEnv* env = AndroidRuntime::getJNIEnv(); 853 jint result = env->CallIntMethod(mDatabase, method_getObjectFilePath, 854 (jint)handle, mStringBuffer, mLongBuffer); 855 if (result != MTP_RESPONSE_OK) { 856 checkAndClearExceptionFromCallback(env, __FUNCTION__); 857 return result; 858 } 859 860 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 861 outFilePath.setTo(str, strlen16(str)); 862 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 863 864 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 865 outFileLength = longValues[0]; 866 outFormat = longValues[1]; 867 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 868 869 checkAndClearExceptionFromCallback(env, __FUNCTION__); 870 return result; 871 } 872 873 MtpResponseCode MyMtpDatabase::deleteFile(MtpObjectHandle handle) { 874 JNIEnv* env = AndroidRuntime::getJNIEnv(); 875 MtpResponseCode result = env->CallIntMethod(mDatabase, method_deleteFile, (jint)handle); 876 877 checkAndClearExceptionFromCallback(env, __FUNCTION__); 878 return result; 879 } 880 881 struct PropertyTableEntry { 882 MtpObjectProperty property; 883 int type; 884 }; 885 886 static const PropertyTableEntry kObjectPropertyTable[] = { 887 { MTP_PROPERTY_STORAGE_ID, MTP_TYPE_UINT32 }, 888 { MTP_PROPERTY_OBJECT_FORMAT, MTP_TYPE_UINT16 }, 889 { MTP_PROPERTY_PROTECTION_STATUS, MTP_TYPE_UINT16 }, 890 { MTP_PROPERTY_OBJECT_SIZE, MTP_TYPE_UINT64 }, 891 { MTP_PROPERTY_OBJECT_FILE_NAME, MTP_TYPE_STR }, 892 { MTP_PROPERTY_DATE_MODIFIED, MTP_TYPE_STR }, 893 { MTP_PROPERTY_PARENT_OBJECT, MTP_TYPE_UINT32 }, 894 { MTP_PROPERTY_PERSISTENT_UID, MTP_TYPE_UINT128 }, 895 { MTP_PROPERTY_NAME, MTP_TYPE_STR }, 896 { MTP_PROPERTY_DISPLAY_NAME, MTP_TYPE_STR }, 897 { MTP_PROPERTY_DATE_ADDED, MTP_TYPE_STR }, 898 { MTP_PROPERTY_ARTIST, MTP_TYPE_STR }, 899 { MTP_PROPERTY_ALBUM_NAME, MTP_TYPE_STR }, 900 { MTP_PROPERTY_ALBUM_ARTIST, MTP_TYPE_STR }, 901 { MTP_PROPERTY_TRACK, MTP_TYPE_UINT16 }, 902 { MTP_PROPERTY_ORIGINAL_RELEASE_DATE, MTP_TYPE_STR }, 903 { MTP_PROPERTY_GENRE, MTP_TYPE_STR }, 904 { MTP_PROPERTY_COMPOSER, MTP_TYPE_STR }, 905 { MTP_PROPERTY_DURATION, MTP_TYPE_UINT32 }, 906 { MTP_PROPERTY_DESCRIPTION, MTP_TYPE_STR }, 907 }; 908 909 static const PropertyTableEntry kDevicePropertyTable[] = { 910 { MTP_DEVICE_PROPERTY_SYNCHRONIZATION_PARTNER, MTP_TYPE_STR }, 911 { MTP_DEVICE_PROPERTY_DEVICE_FRIENDLY_NAME, MTP_TYPE_STR }, 912 { MTP_DEVICE_PROPERTY_IMAGE_SIZE, MTP_TYPE_STR }, 913 }; 914 915 bool MyMtpDatabase::getObjectPropertyInfo(MtpObjectProperty property, int& type) { 916 int count = sizeof(kObjectPropertyTable) / sizeof(kObjectPropertyTable[0]); 917 const PropertyTableEntry* entry = kObjectPropertyTable; 918 for (int i = 0; i < count; i++, entry++) { 919 if (entry->property == property) { 920 type = entry->type; 921 return true; 922 } 923 } 924 return false; 925 } 926 927 bool MyMtpDatabase::getDevicePropertyInfo(MtpDeviceProperty property, int& type) { 928 int count = sizeof(kDevicePropertyTable) / sizeof(kDevicePropertyTable[0]); 929 const PropertyTableEntry* entry = kDevicePropertyTable; 930 for (int i = 0; i < count; i++, entry++) { 931 if (entry->property == property) { 932 type = entry->type; 933 return true; 934 } 935 } 936 return false; 937 } 938 939 MtpObjectHandleList* MyMtpDatabase::getObjectReferences(MtpObjectHandle handle) { 940 JNIEnv* env = AndroidRuntime::getJNIEnv(); 941 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, method_getObjectReferences, 942 (jint)handle); 943 if (!array) 944 return NULL; 945 MtpObjectHandleList* list = new MtpObjectHandleList(); 946 jint* handles = env->GetIntArrayElements(array, 0); 947 jsize length = env->GetArrayLength(array); 948 for (int i = 0; i < length; i++) 949 list->push(handles[i]); 950 env->ReleaseIntArrayElements(array, handles, 0); 951 env->DeleteLocalRef(array); 952 953 checkAndClearExceptionFromCallback(env, __FUNCTION__); 954 return list; 955 } 956 957 MtpResponseCode MyMtpDatabase::setObjectReferences(MtpObjectHandle handle, 958 MtpObjectHandleList* references) { 959 JNIEnv* env = AndroidRuntime::getJNIEnv(); 960 int count = references->size(); 961 jintArray array = env->NewIntArray(count); 962 if (!array) { 963 ALOGE("out of memory in setObjectReferences"); 964 return false; 965 } 966 jint* handles = env->GetIntArrayElements(array, 0); 967 for (int i = 0; i < count; i++) 968 handles[i] = (*references)[i]; 969 env->ReleaseIntArrayElements(array, handles, 0); 970 MtpResponseCode result = env->CallIntMethod(mDatabase, method_setObjectReferences, 971 (jint)handle, array); 972 env->DeleteLocalRef(array); 973 974 checkAndClearExceptionFromCallback(env, __FUNCTION__); 975 return result; 976 } 977 978 MtpProperty* MyMtpDatabase::getObjectPropertyDesc(MtpObjectProperty property, 979 MtpObjectFormat format) { 980 MtpProperty* result = NULL; 981 switch (property) { 982 case MTP_PROPERTY_OBJECT_FORMAT: 983 // use format as default value 984 result = new MtpProperty(property, MTP_TYPE_UINT16, false, format); 985 break; 986 case MTP_PROPERTY_PROTECTION_STATUS: 987 case MTP_PROPERTY_TRACK: 988 result = new MtpProperty(property, MTP_TYPE_UINT16); 989 break; 990 case MTP_PROPERTY_STORAGE_ID: 991 case MTP_PROPERTY_PARENT_OBJECT: 992 case MTP_PROPERTY_DURATION: 993 result = new MtpProperty(property, MTP_TYPE_UINT32); 994 break; 995 case MTP_PROPERTY_OBJECT_SIZE: 996 result = new MtpProperty(property, MTP_TYPE_UINT64); 997 break; 998 case MTP_PROPERTY_PERSISTENT_UID: 999 result = new MtpProperty(property, MTP_TYPE_UINT128); 1000 break; 1001 case MTP_PROPERTY_NAME: 1002 case MTP_PROPERTY_DISPLAY_NAME: 1003 case MTP_PROPERTY_ARTIST: 1004 case MTP_PROPERTY_ALBUM_NAME: 1005 case MTP_PROPERTY_ALBUM_ARTIST: 1006 case MTP_PROPERTY_GENRE: 1007 case MTP_PROPERTY_COMPOSER: 1008 case MTP_PROPERTY_DESCRIPTION: 1009 result = new MtpProperty(property, MTP_TYPE_STR); 1010 break; 1011 case MTP_PROPERTY_DATE_MODIFIED: 1012 case MTP_PROPERTY_DATE_ADDED: 1013 case MTP_PROPERTY_ORIGINAL_RELEASE_DATE: 1014 result = new MtpProperty(property, MTP_TYPE_STR); 1015 result->setFormDateTime(); 1016 break; 1017 case MTP_PROPERTY_OBJECT_FILE_NAME: 1018 // We allow renaming files and folders 1019 result = new MtpProperty(property, MTP_TYPE_STR, true); 1020 break; 1021 } 1022 1023 return result; 1024 } 1025 1026 MtpProperty* MyMtpDatabase::getDevicePropertyDesc(MtpDeviceProperty property) { 1027 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1028 MtpProperty* result = NULL; 1029 bool writable = false; 1030 1031 switch (property) { 1032 case MTP_DEVICE_PROPERTY_SYNCHRONIZATION_PARTNER: 1033 case MTP_DEVICE_PROPERTY_DEVICE_FRIENDLY_NAME: 1034 writable = true; 1035 // fall through 1036 case MTP_DEVICE_PROPERTY_IMAGE_SIZE: 1037 result = new MtpProperty(property, MTP_TYPE_STR, writable); 1038 1039 // get current value 1040 jint ret = env->CallIntMethod(mDatabase, method_getDeviceProperty, 1041 (jint)property, mLongBuffer, mStringBuffer); 1042 if (ret == MTP_RESPONSE_OK) { 1043 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 1044 result->setCurrentValue(str); 1045 // for read-only properties it is safe to assume current value is default value 1046 if (!writable) 1047 result->setDefaultValue(str); 1048 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 1049 } else { 1050 ALOGE("unable to read device property, response: %04X", ret); 1051 } 1052 break; 1053 } 1054 1055 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1056 return result; 1057 } 1058 1059 void MyMtpDatabase::sessionStarted() { 1060 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1061 env->CallVoidMethod(mDatabase, method_sessionStarted); 1062 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1063 } 1064 1065 void MyMtpDatabase::sessionEnded() { 1066 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1067 env->CallVoidMethod(mDatabase, method_sessionEnded); 1068 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1069 } 1070 1071 // ---------------------------------------------------------------------------- 1072 1073 static void 1074 android_mtp_MtpDatabase_setup(JNIEnv *env, jobject thiz) 1075 { 1076 MyMtpDatabase* database = new MyMtpDatabase(env, thiz); 1077 env->SetIntField(thiz, field_context, (int)database); 1078 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1079 } 1080 1081 static void 1082 android_mtp_MtpDatabase_finalize(JNIEnv *env, jobject thiz) 1083 { 1084 MyMtpDatabase* database = (MyMtpDatabase *)env->GetIntField(thiz, field_context); 1085 database->cleanup(env); 1086 delete database; 1087 env->SetIntField(thiz, field_context, 0); 1088 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1089 } 1090 1091 static jstring 1092 android_mtp_MtpPropertyGroup_format_date_time(JNIEnv *env, jobject thiz, jlong seconds) 1093 { 1094 char date[20]; 1095 formatDateTime(seconds, date, sizeof(date)); 1096 return env->NewStringUTF(date); 1097 } 1098 1099 // ---------------------------------------------------------------------------- 1100 1101 static JNINativeMethod gMtpDatabaseMethods[] = { 1102 {"native_setup", "()V", (void *)android_mtp_MtpDatabase_setup}, 1103 {"native_finalize", "()V", (void *)android_mtp_MtpDatabase_finalize}, 1104 }; 1105 1106 static JNINativeMethod gMtpPropertyGroupMethods[] = { 1107 {"format_date_time", "(J)Ljava/lang/String;", 1108 (void *)android_mtp_MtpPropertyGroup_format_date_time}, 1109 }; 1110 1111 static const char* const kClassPathName = "android/mtp/MtpDatabase"; 1112 1113 int register_android_mtp_MtpDatabase(JNIEnv *env) 1114 { 1115 jclass clazz; 1116 1117 clazz = env->FindClass("android/mtp/MtpDatabase"); 1118 if (clazz == NULL) { 1119 ALOGE("Can't find android/mtp/MtpDatabase"); 1120 return -1; 1121 } 1122 method_beginSendObject = env->GetMethodID(clazz, "beginSendObject", "(Ljava/lang/String;IIIJJ)I"); 1123 if (method_beginSendObject == NULL) { 1124 ALOGE("Can't find beginSendObject"); 1125 return -1; 1126 } 1127 method_endSendObject = env->GetMethodID(clazz, "endSendObject", "(Ljava/lang/String;IIZ)V"); 1128 if (method_endSendObject == NULL) { 1129 ALOGE("Can't find endSendObject"); 1130 return -1; 1131 } 1132 method_getObjectList = env->GetMethodID(clazz, "getObjectList", "(III)[I"); 1133 if (method_getObjectList == NULL) { 1134 ALOGE("Can't find getObjectList"); 1135 return -1; 1136 } 1137 method_getNumObjects = env->GetMethodID(clazz, "getNumObjects", "(III)I"); 1138 if (method_getNumObjects == NULL) { 1139 ALOGE("Can't find getNumObjects"); 1140 return -1; 1141 } 1142 method_getSupportedPlaybackFormats = env->GetMethodID(clazz, "getSupportedPlaybackFormats", "()[I"); 1143 if (method_getSupportedPlaybackFormats == NULL) { 1144 ALOGE("Can't find getSupportedPlaybackFormats"); 1145 return -1; 1146 } 1147 method_getSupportedCaptureFormats = env->GetMethodID(clazz, "getSupportedCaptureFormats", "()[I"); 1148 if (method_getSupportedCaptureFormats == NULL) { 1149 ALOGE("Can't find getSupportedCaptureFormats"); 1150 return -1; 1151 } 1152 method_getSupportedObjectProperties = env->GetMethodID(clazz, "getSupportedObjectProperties", "(I)[I"); 1153 if (method_getSupportedObjectProperties == NULL) { 1154 ALOGE("Can't find getSupportedObjectProperties"); 1155 return -1; 1156 } 1157 method_getSupportedDeviceProperties = env->GetMethodID(clazz, "getSupportedDeviceProperties", "()[I"); 1158 if (method_getSupportedDeviceProperties == NULL) { 1159 ALOGE("Can't find getSupportedDeviceProperties"); 1160 return -1; 1161 } 1162 method_setObjectProperty = env->GetMethodID(clazz, "setObjectProperty", "(IIJLjava/lang/String;)I"); 1163 if (method_setObjectProperty == NULL) { 1164 ALOGE("Can't find setObjectProperty"); 1165 return -1; 1166 } 1167 method_getDeviceProperty = env->GetMethodID(clazz, "getDeviceProperty", "(I[J[C)I"); 1168 if (method_getDeviceProperty == NULL) { 1169 ALOGE("Can't find getDeviceProperty"); 1170 return -1; 1171 } 1172 method_setDeviceProperty = env->GetMethodID(clazz, "setDeviceProperty", "(IJLjava/lang/String;)I"); 1173 if (method_setDeviceProperty == NULL) { 1174 ALOGE("Can't find setDeviceProperty"); 1175 return -1; 1176 } 1177 method_getObjectPropertyList = env->GetMethodID(clazz, "getObjectPropertyList", 1178 "(JIJII)Landroid/mtp/MtpPropertyList;"); 1179 if (method_getObjectPropertyList == NULL) { 1180 ALOGE("Can't find getObjectPropertyList"); 1181 return -1; 1182 } 1183 method_getObjectInfo = env->GetMethodID(clazz, "getObjectInfo", "(I[I[C[J)Z"); 1184 if (method_getObjectInfo == NULL) { 1185 ALOGE("Can't find getObjectInfo"); 1186 return -1; 1187 } 1188 method_getObjectFilePath = env->GetMethodID(clazz, "getObjectFilePath", "(I[C[J)I"); 1189 if (method_getObjectFilePath == NULL) { 1190 ALOGE("Can't find getObjectFilePath"); 1191 return -1; 1192 } 1193 method_deleteFile = env->GetMethodID(clazz, "deleteFile", "(I)I"); 1194 if (method_deleteFile == NULL) { 1195 ALOGE("Can't find deleteFile"); 1196 return -1; 1197 } 1198 method_getObjectReferences = env->GetMethodID(clazz, "getObjectReferences", "(I)[I"); 1199 if (method_getObjectReferences == NULL) { 1200 ALOGE("Can't find getObjectReferences"); 1201 return -1; 1202 } 1203 method_setObjectReferences = env->GetMethodID(clazz, "setObjectReferences", "(I[I)I"); 1204 if (method_setObjectReferences == NULL) { 1205 ALOGE("Can't find setObjectReferences"); 1206 return -1; 1207 } 1208 method_sessionStarted = env->GetMethodID(clazz, "sessionStarted", "()V"); 1209 if (method_sessionStarted == NULL) { 1210 ALOGE("Can't find sessionStarted"); 1211 return -1; 1212 } 1213 method_sessionEnded = env->GetMethodID(clazz, "sessionEnded", "()V"); 1214 if (method_sessionEnded == NULL) { 1215 ALOGE("Can't find sessionEnded"); 1216 return -1; 1217 } 1218 1219 field_context = env->GetFieldID(clazz, "mNativeContext", "I"); 1220 if (field_context == NULL) { 1221 ALOGE("Can't find MtpDatabase.mNativeContext"); 1222 return -1; 1223 } 1224 1225 // now set up fields for MtpPropertyList class 1226 clazz = env->FindClass("android/mtp/MtpPropertyList"); 1227 if (clazz == NULL) { 1228 ALOGE("Can't find android/mtp/MtpPropertyList"); 1229 return -1; 1230 } 1231 field_mCount = env->GetFieldID(clazz, "mCount", "I"); 1232 if (field_mCount == NULL) { 1233 ALOGE("Can't find MtpPropertyList.mCount"); 1234 return -1; 1235 } 1236 field_mResult = env->GetFieldID(clazz, "mResult", "I"); 1237 if (field_mResult == NULL) { 1238 ALOGE("Can't find MtpPropertyList.mResult"); 1239 return -1; 1240 } 1241 field_mObjectHandles = env->GetFieldID(clazz, "mObjectHandles", "[I"); 1242 if (field_mObjectHandles == NULL) { 1243 ALOGE("Can't find MtpPropertyList.mObjectHandles"); 1244 return -1; 1245 } 1246 field_mPropertyCodes = env->GetFieldID(clazz, "mPropertyCodes", "[I"); 1247 if (field_mPropertyCodes == NULL) { 1248 ALOGE("Can't find MtpPropertyList.mPropertyCodes"); 1249 return -1; 1250 } 1251 field_mDataTypes = env->GetFieldID(clazz, "mDataTypes", "[I"); 1252 if (field_mDataTypes == NULL) { 1253 ALOGE("Can't find MtpPropertyList.mDataTypes"); 1254 return -1; 1255 } 1256 field_mLongValues = env->GetFieldID(clazz, "mLongValues", "[J"); 1257 if (field_mLongValues == NULL) { 1258 ALOGE("Can't find MtpPropertyList.mLongValues"); 1259 return -1; 1260 } 1261 field_mStringValues = env->GetFieldID(clazz, "mStringValues", "[Ljava/lang/String;"); 1262 if (field_mStringValues == NULL) { 1263 ALOGE("Can't find MtpPropertyList.mStringValues"); 1264 return -1; 1265 } 1266 1267 if (AndroidRuntime::registerNativeMethods(env, 1268 "android/mtp/MtpDatabase", gMtpDatabaseMethods, NELEM(gMtpDatabaseMethods))) 1269 return -1; 1270 1271 return AndroidRuntime::registerNativeMethods(env, 1272 "android/mtp/MtpPropertyGroup", gMtpPropertyGroupMethods, NELEM(gMtpPropertyGroupMethods)); 1273 } 1274
