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 #include "android_runtime/Log.h" 30 31 #include "MtpDatabase.h" 32 #include "MtpDataPacket.h" 33 #include "MtpObjectInfo.h" 34 #include "MtpProperty.h" 35 #include "MtpStringBuffer.h" 36 #include "MtpUtils.h" 37 #include "mtp.h" 38 39 extern "C" { 40 #include "libexif/exif-content.h" 41 #include "libexif/exif-data.h" 42 #include "libexif/exif-tag.h" 43 #include "libexif/exif-utils.h" 44 } 45 46 using namespace android; 47 48 // ---------------------------------------------------------------------------- 49 50 static jmethodID method_beginSendObject; 51 static jmethodID method_endSendObject; 52 static jmethodID method_getObjectList; 53 static jmethodID method_getNumObjects; 54 static jmethodID method_getSupportedPlaybackFormats; 55 static jmethodID method_getSupportedCaptureFormats; 56 static jmethodID method_getSupportedObjectProperties; 57 static jmethodID method_getSupportedDeviceProperties; 58 static jmethodID method_setObjectProperty; 59 static jmethodID method_getDeviceProperty; 60 static jmethodID method_setDeviceProperty; 61 static jmethodID method_getObjectPropertyList; 62 static jmethodID method_getObjectInfo; 63 static jmethodID method_getObjectFilePath; 64 static jmethodID method_deleteFile; 65 static jmethodID method_getObjectReferences; 66 static jmethodID method_setObjectReferences; 67 static jmethodID method_sessionStarted; 68 static jmethodID method_sessionEnded; 69 70 static jfieldID field_context; 71 72 // MtpPropertyList fields 73 static jfieldID field_mCount; 74 static jfieldID field_mResult; 75 static jfieldID field_mObjectHandles; 76 static jfieldID field_mPropertyCodes; 77 static jfieldID field_mDataTypes; 78 static jfieldID field_mLongValues; 79 static jfieldID field_mStringValues; 80 81 82 MtpDatabase* getMtpDatabase(JNIEnv *env, jobject database) { 83 return (MtpDatabase *)env->GetIntField(database, field_context); 84 } 85 86 // ---------------------------------------------------------------------------- 87 88 class MyMtpDatabase : public MtpDatabase { 89 private: 90 jobject mDatabase; 91 jintArray mIntBuffer; 92 jlongArray mLongBuffer; 93 jcharArray mStringBuffer; 94 95 public: 96 MyMtpDatabase(JNIEnv *env, jobject client); 97 virtual ~MyMtpDatabase(); 98 void cleanup(JNIEnv *env); 99 100 virtual MtpObjectHandle beginSendObject(const char* path, 101 MtpObjectFormat format, 102 MtpObjectHandle parent, 103 MtpStorageID storage, 104 uint64_t size, 105 time_t modified); 106 107 virtual void endSendObject(const char* path, 108 MtpObjectHandle handle, 109 MtpObjectFormat format, 110 bool succeeded); 111 112 virtual MtpObjectHandleList* getObjectList(MtpStorageID storageID, 113 MtpObjectFormat format, 114 MtpObjectHandle parent); 115 116 virtual int getNumObjects(MtpStorageID storageID, 117 MtpObjectFormat format, 118 MtpObjectHandle parent); 119 120 // callee should delete[] the results from these 121 // results can be NULL 122 virtual MtpObjectFormatList* getSupportedPlaybackFormats(); 123 virtual MtpObjectFormatList* getSupportedCaptureFormats(); 124 virtual MtpObjectPropertyList* getSupportedObjectProperties(MtpObjectFormat format); 125 virtual MtpDevicePropertyList* getSupportedDeviceProperties(); 126 127 virtual MtpResponseCode getObjectPropertyValue(MtpObjectHandle handle, 128 MtpObjectProperty property, 129 MtpDataPacket& packet); 130 131 virtual MtpResponseCode setObjectPropertyValue(MtpObjectHandle handle, 132 MtpObjectProperty property, 133 MtpDataPacket& packet); 134 135 virtual MtpResponseCode getDevicePropertyValue(MtpDeviceProperty property, 136 MtpDataPacket& packet); 137 138 virtual MtpResponseCode setDevicePropertyValue(MtpDeviceProperty property, 139 MtpDataPacket& packet); 140 141 virtual MtpResponseCode resetDeviceProperty(MtpDeviceProperty property); 142 143 virtual MtpResponseCode getObjectPropertyList(MtpObjectHandle handle, 144 uint32_t format, uint32_t property, 145 int groupCode, int depth, 146 MtpDataPacket& packet); 147 148 virtual MtpResponseCode getObjectInfo(MtpObjectHandle handle, 149 MtpObjectInfo& info); 150 151 virtual void* getThumbnail(MtpObjectHandle handle, size_t& outThumbSize); 152 153 virtual MtpResponseCode getObjectFilePath(MtpObjectHandle handle, 154 MtpString& outFilePath, 155 int64_t& outFileLength, 156 MtpObjectFormat& outFormat); 157 virtual MtpResponseCode deleteFile(MtpObjectHandle handle); 158 159 bool getObjectPropertyInfo(MtpObjectProperty property, int& type); 160 bool getDevicePropertyInfo(MtpDeviceProperty property, int& type); 161 162 virtual MtpObjectHandleList* getObjectReferences(MtpObjectHandle handle); 163 164 virtual MtpResponseCode setObjectReferences(MtpObjectHandle handle, 165 MtpObjectHandleList* references); 166 167 virtual MtpProperty* getObjectPropertyDesc(MtpObjectProperty property, 168 MtpObjectFormat format); 169 170 virtual MtpProperty* getDevicePropertyDesc(MtpDeviceProperty property); 171 172 virtual void sessionStarted(); 173 174 virtual void sessionEnded(); 175 }; 176 177 // ---------------------------------------------------------------------------- 178 179 static void checkAndClearExceptionFromCallback(JNIEnv* env, const char* methodName) { 180 if (env->ExceptionCheck()) { 181 ALOGE("An exception was thrown by callback '%s'.", methodName); 182 LOGE_EX(env); 183 env->ExceptionClear(); 184 } 185 } 186 187 // ---------------------------------------------------------------------------- 188 189 MyMtpDatabase::MyMtpDatabase(JNIEnv *env, jobject client) 190 : mDatabase(env->NewGlobalRef(client)), 191 mIntBuffer(NULL), 192 mLongBuffer(NULL), 193 mStringBuffer(NULL) 194 { 195 // create buffers for out arguments 196 // we don't need to be thread-safe so this is OK 197 jintArray intArray = env->NewIntArray(3); 198 if (!intArray) { 199 return; // Already threw. 200 } 201 mIntBuffer = (jintArray)env->NewGlobalRef(intArray); 202 jlongArray longArray = env->NewLongArray(2); 203 if (!longArray) { 204 return; // Already threw. 205 } 206 mLongBuffer = (jlongArray)env->NewGlobalRef(longArray); 207 jcharArray charArray = env->NewCharArray(256); 208 if (!charArray) { 209 return; // Already threw. 210 } 211 mStringBuffer = (jcharArray)env->NewGlobalRef(charArray); 212 } 213 214 void MyMtpDatabase::cleanup(JNIEnv *env) { 215 env->DeleteGlobalRef(mDatabase); 216 env->DeleteGlobalRef(mIntBuffer); 217 env->DeleteGlobalRef(mLongBuffer); 218 env->DeleteGlobalRef(mStringBuffer); 219 } 220 221 MyMtpDatabase::~MyMtpDatabase() { 222 } 223 224 MtpObjectHandle MyMtpDatabase::beginSendObject(const char* path, 225 MtpObjectFormat format, 226 MtpObjectHandle parent, 227 MtpStorageID storage, 228 uint64_t size, 229 time_t modified) { 230 JNIEnv* env = AndroidRuntime::getJNIEnv(); 231 jstring pathStr = env->NewStringUTF(path); 232 MtpObjectHandle result = env->CallIntMethod(mDatabase, method_beginSendObject, 233 pathStr, (jint)format, (jint)parent, (jint)storage, 234 (jlong)size, (jlong)modified); 235 236 if (pathStr) 237 env->DeleteLocalRef(pathStr); 238 checkAndClearExceptionFromCallback(env, __FUNCTION__); 239 return result; 240 } 241 242 void MyMtpDatabase::endSendObject(const char* path, MtpObjectHandle handle, 243 MtpObjectFormat format, bool succeeded) { 244 JNIEnv* env = AndroidRuntime::getJNIEnv(); 245 jstring pathStr = env->NewStringUTF(path); 246 env->CallVoidMethod(mDatabase, method_endSendObject, pathStr, 247 (jint)handle, (jint)format, (jboolean)succeeded); 248 249 if (pathStr) 250 env->DeleteLocalRef(pathStr); 251 checkAndClearExceptionFromCallback(env, __FUNCTION__); 252 } 253 254 MtpObjectHandleList* MyMtpDatabase::getObjectList(MtpStorageID storageID, 255 MtpObjectFormat format, 256 MtpObjectHandle parent) { 257 JNIEnv* env = AndroidRuntime::getJNIEnv(); 258 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, method_getObjectList, 259 (jint)storageID, (jint)format, (jint)parent); 260 if (!array) 261 return NULL; 262 MtpObjectHandleList* list = new MtpObjectHandleList(); 263 jint* handles = env->GetIntArrayElements(array, 0); 264 jsize length = env->GetArrayLength(array); 265 for (int i = 0; i < length; i++) 266 list->push(handles[i]); 267 env->ReleaseIntArrayElements(array, handles, 0); 268 env->DeleteLocalRef(array); 269 270 checkAndClearExceptionFromCallback(env, __FUNCTION__); 271 return list; 272 } 273 274 int MyMtpDatabase::getNumObjects(MtpStorageID storageID, 275 MtpObjectFormat format, 276 MtpObjectHandle parent) { 277 JNIEnv* env = AndroidRuntime::getJNIEnv(); 278 int result = env->CallIntMethod(mDatabase, method_getNumObjects, 279 (jint)storageID, (jint)format, (jint)parent); 280 281 checkAndClearExceptionFromCallback(env, __FUNCTION__); 282 return result; 283 } 284 285 MtpObjectFormatList* MyMtpDatabase::getSupportedPlaybackFormats() { 286 JNIEnv* env = AndroidRuntime::getJNIEnv(); 287 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 288 method_getSupportedPlaybackFormats); 289 if (!array) 290 return NULL; 291 MtpObjectFormatList* list = new MtpObjectFormatList(); 292 jint* formats = env->GetIntArrayElements(array, 0); 293 jsize length = env->GetArrayLength(array); 294 for (int i = 0; i < length; i++) 295 list->push(formats[i]); 296 env->ReleaseIntArrayElements(array, formats, 0); 297 env->DeleteLocalRef(array); 298 299 checkAndClearExceptionFromCallback(env, __FUNCTION__); 300 return list; 301 } 302 303 MtpObjectFormatList* MyMtpDatabase::getSupportedCaptureFormats() { 304 JNIEnv* env = AndroidRuntime::getJNIEnv(); 305 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 306 method_getSupportedCaptureFormats); 307 if (!array) 308 return NULL; 309 MtpObjectFormatList* list = new MtpObjectFormatList(); 310 jint* formats = env->GetIntArrayElements(array, 0); 311 jsize length = env->GetArrayLength(array); 312 for (int i = 0; i < length; i++) 313 list->push(formats[i]); 314 env->ReleaseIntArrayElements(array, formats, 0); 315 env->DeleteLocalRef(array); 316 317 checkAndClearExceptionFromCallback(env, __FUNCTION__); 318 return list; 319 } 320 321 MtpObjectPropertyList* MyMtpDatabase::getSupportedObjectProperties(MtpObjectFormat format) { 322 JNIEnv* env = AndroidRuntime::getJNIEnv(); 323 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 324 method_getSupportedObjectProperties, (jint)format); 325 if (!array) 326 return NULL; 327 MtpObjectPropertyList* list = new MtpObjectPropertyList(); 328 jint* properties = env->GetIntArrayElements(array, 0); 329 jsize length = env->GetArrayLength(array); 330 for (int i = 0; i < length; i++) 331 list->push(properties[i]); 332 env->ReleaseIntArrayElements(array, properties, 0); 333 env->DeleteLocalRef(array); 334 335 checkAndClearExceptionFromCallback(env, __FUNCTION__); 336 return list; 337 } 338 339 MtpDevicePropertyList* MyMtpDatabase::getSupportedDeviceProperties() { 340 JNIEnv* env = AndroidRuntime::getJNIEnv(); 341 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 342 method_getSupportedDeviceProperties); 343 if (!array) 344 return NULL; 345 MtpDevicePropertyList* list = new MtpDevicePropertyList(); 346 jint* properties = env->GetIntArrayElements(array, 0); 347 jsize length = env->GetArrayLength(array); 348 for (int i = 0; i < length; i++) 349 list->push(properties[i]); 350 env->ReleaseIntArrayElements(array, properties, 0); 351 env->DeleteLocalRef(array); 352 353 checkAndClearExceptionFromCallback(env, __FUNCTION__); 354 return list; 355 } 356 357 MtpResponseCode MyMtpDatabase::getObjectPropertyValue(MtpObjectHandle handle, 358 MtpObjectProperty property, 359 MtpDataPacket& packet) { 360 JNIEnv* env = AndroidRuntime::getJNIEnv(); 361 jobject list = env->CallObjectMethod(mDatabase, method_getObjectPropertyList, 362 (jlong)handle, 0, (jlong)property, 0, 0); 363 MtpResponseCode result = env->GetIntField(list, field_mResult); 364 int count = env->GetIntField(list, field_mCount); 365 if (result == MTP_RESPONSE_OK && count != 1) 366 result = MTP_RESPONSE_GENERAL_ERROR; 367 368 if (result == MTP_RESPONSE_OK) { 369 jintArray objectHandlesArray = (jintArray)env->GetObjectField(list, field_mObjectHandles); 370 jintArray propertyCodesArray = (jintArray)env->GetObjectField(list, field_mPropertyCodes); 371 jintArray dataTypesArray = (jintArray)env->GetObjectField(list, field_mDataTypes); 372 jlongArray longValuesArray = (jlongArray)env->GetObjectField(list, field_mLongValues); 373 jobjectArray stringValuesArray = (jobjectArray)env->GetObjectField(list, field_mStringValues); 374 375 jint* objectHandles = env->GetIntArrayElements(objectHandlesArray, 0); 376 jint* propertyCodes = env->GetIntArrayElements(propertyCodesArray, 0); 377 jint* dataTypes = env->GetIntArrayElements(dataTypesArray, 0); 378 jlong* longValues = (longValuesArray ? env->GetLongArrayElements(longValuesArray, 0) : NULL); 379 380 int type = dataTypes[0]; 381 jlong longValue = (longValues ? longValues[0] : 0); 382 383 // special case date properties, which are strings to MTP 384 // but stored internally as a uint64 385 if (property == MTP_PROPERTY_DATE_MODIFIED || property == MTP_PROPERTY_DATE_ADDED) { 386 char date[20]; 387 formatDateTime(longValue, date, sizeof(date)); 388 packet.putString(date); 389 goto out; 390 } 391 // release date is stored internally as just the year 392 if (property == MTP_PROPERTY_ORIGINAL_RELEASE_DATE) { 393 char date[20]; 394 snprintf(date, sizeof(date), "%04lld0101T000000", longValue); 395 packet.putString(date); 396 goto out; 397 } 398 399 switch (type) { 400 case MTP_TYPE_INT8: 401 packet.putInt8(longValue); 402 break; 403 case MTP_TYPE_UINT8: 404 packet.putUInt8(longValue); 405 break; 406 case MTP_TYPE_INT16: 407 packet.putInt16(longValue); 408 break; 409 case MTP_TYPE_UINT16: 410 packet.putUInt16(longValue); 411 break; 412 case MTP_TYPE_INT32: 413 packet.putInt32(longValue); 414 break; 415 case MTP_TYPE_UINT32: 416 packet.putUInt32(longValue); 417 break; 418 case MTP_TYPE_INT64: 419 packet.putInt64(longValue); 420 break; 421 case MTP_TYPE_UINT64: 422 packet.putUInt64(longValue); 423 break; 424 case MTP_TYPE_INT128: 425 packet.putInt128(longValue); 426 break; 427 case MTP_TYPE_UINT128: 428 packet.putInt128(longValue); 429 break; 430 case MTP_TYPE_STR: 431 { 432 jstring stringValue = (jstring)env->GetObjectArrayElement(stringValuesArray, 0); 433 if (stringValue) { 434 const char* str = env->GetStringUTFChars(stringValue, NULL); 435 if (str == NULL) { 436 return MTP_RESPONSE_GENERAL_ERROR; 437 } 438 packet.putString(str); 439 env->ReleaseStringUTFChars(stringValue, str); 440 } else { 441 packet.putEmptyString(); 442 } 443 break; 444 } 445 default: 446 ALOGE("unsupported type in getObjectPropertyValue\n"); 447 result = MTP_RESPONSE_INVALID_OBJECT_PROP_FORMAT; 448 } 449 out: 450 env->ReleaseIntArrayElements(objectHandlesArray, objectHandles, 0); 451 env->ReleaseIntArrayElements(propertyCodesArray, propertyCodes, 0); 452 env->ReleaseIntArrayElements(dataTypesArray, dataTypes, 0); 453 if (longValues) 454 env->ReleaseLongArrayElements(longValuesArray, longValues, 0); 455 456 env->DeleteLocalRef(objectHandlesArray); 457 env->DeleteLocalRef(propertyCodesArray); 458 env->DeleteLocalRef(dataTypesArray); 459 if (longValuesArray) 460 env->DeleteLocalRef(longValuesArray); 461 if (stringValuesArray) 462 env->DeleteLocalRef(stringValuesArray); 463 } 464 465 env->DeleteLocalRef(list); 466 checkAndClearExceptionFromCallback(env, __FUNCTION__); 467 return result; 468 } 469 470 MtpResponseCode MyMtpDatabase::setObjectPropertyValue(MtpObjectHandle handle, 471 MtpObjectProperty property, 472 MtpDataPacket& packet) { 473 int type; 474 475 if (!getObjectPropertyInfo(property, type)) 476 return MTP_RESPONSE_OBJECT_PROP_NOT_SUPPORTED; 477 478 JNIEnv* env = AndroidRuntime::getJNIEnv(); 479 jlong longValue = 0; 480 jstring stringValue = NULL; 481 482 switch (type) { 483 case MTP_TYPE_INT8: 484 longValue = packet.getInt8(); 485 break; 486 case MTP_TYPE_UINT8: 487 longValue = packet.getUInt8(); 488 break; 489 case MTP_TYPE_INT16: 490 longValue = packet.getInt16(); 491 break; 492 case MTP_TYPE_UINT16: 493 longValue = packet.getUInt16(); 494 break; 495 case MTP_TYPE_INT32: 496 longValue = packet.getInt32(); 497 break; 498 case MTP_TYPE_UINT32: 499 longValue = packet.getUInt32(); 500 break; 501 case MTP_TYPE_INT64: 502 longValue = packet.getInt64(); 503 break; 504 case MTP_TYPE_UINT64: 505 longValue = packet.getUInt64(); 506 break; 507 case MTP_TYPE_STR: 508 { 509 MtpStringBuffer buffer; 510 packet.getString(buffer); 511 stringValue = env->NewStringUTF((const char *)buffer); 512 break; 513 } 514 default: 515 ALOGE("unsupported type in getObjectPropertyValue\n"); 516 return MTP_RESPONSE_INVALID_OBJECT_PROP_FORMAT; 517 } 518 519 jint result = env->CallIntMethod(mDatabase, method_setObjectProperty, 520 (jint)handle, (jint)property, longValue, stringValue); 521 if (stringValue) 522 env->DeleteLocalRef(stringValue); 523 524 checkAndClearExceptionFromCallback(env, __FUNCTION__); 525 return result; 526 } 527 528 MtpResponseCode MyMtpDatabase::getDevicePropertyValue(MtpDeviceProperty property, 529 MtpDataPacket& packet) { 530 int type; 531 532 if (!getDevicePropertyInfo(property, type)) 533 return MTP_RESPONSE_DEVICE_PROP_NOT_SUPPORTED; 534 535 JNIEnv* env = AndroidRuntime::getJNIEnv(); 536 jint result = env->CallIntMethod(mDatabase, method_getDeviceProperty, 537 (jint)property, mLongBuffer, mStringBuffer); 538 if (result != MTP_RESPONSE_OK) { 539 checkAndClearExceptionFromCallback(env, __FUNCTION__); 540 return result; 541 } 542 543 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 544 jlong longValue = longValues[0]; 545 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 546 547 switch (type) { 548 case MTP_TYPE_INT8: 549 packet.putInt8(longValue); 550 break; 551 case MTP_TYPE_UINT8: 552 packet.putUInt8(longValue); 553 break; 554 case MTP_TYPE_INT16: 555 packet.putInt16(longValue); 556 break; 557 case MTP_TYPE_UINT16: 558 packet.putUInt16(longValue); 559 break; 560 case MTP_TYPE_INT32: 561 packet.putInt32(longValue); 562 break; 563 case MTP_TYPE_UINT32: 564 packet.putUInt32(longValue); 565 break; 566 case MTP_TYPE_INT64: 567 packet.putInt64(longValue); 568 break; 569 case MTP_TYPE_UINT64: 570 packet.putUInt64(longValue); 571 break; 572 case MTP_TYPE_INT128: 573 packet.putInt128(longValue); 574 break; 575 case MTP_TYPE_UINT128: 576 packet.putInt128(longValue); 577 break; 578 case MTP_TYPE_STR: 579 { 580 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 581 packet.putString(str); 582 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 583 break; 584 } 585 default: 586 ALOGE("unsupported type in getDevicePropertyValue\n"); 587 return MTP_RESPONSE_INVALID_DEVICE_PROP_FORMAT; 588 } 589 590 checkAndClearExceptionFromCallback(env, __FUNCTION__); 591 return MTP_RESPONSE_OK; 592 } 593 594 MtpResponseCode MyMtpDatabase::setDevicePropertyValue(MtpDeviceProperty property, 595 MtpDataPacket& packet) { 596 int type; 597 598 if (!getDevicePropertyInfo(property, type)) 599 return MTP_RESPONSE_DEVICE_PROP_NOT_SUPPORTED; 600 601 JNIEnv* env = AndroidRuntime::getJNIEnv(); 602 jlong longValue = 0; 603 jstring stringValue = NULL; 604 605 switch (type) { 606 case MTP_TYPE_INT8: 607 longValue = packet.getInt8(); 608 break; 609 case MTP_TYPE_UINT8: 610 longValue = packet.getUInt8(); 611 break; 612 case MTP_TYPE_INT16: 613 longValue = packet.getInt16(); 614 break; 615 case MTP_TYPE_UINT16: 616 longValue = packet.getUInt16(); 617 break; 618 case MTP_TYPE_INT32: 619 longValue = packet.getInt32(); 620 break; 621 case MTP_TYPE_UINT32: 622 longValue = packet.getUInt32(); 623 break; 624 case MTP_TYPE_INT64: 625 longValue = packet.getInt64(); 626 break; 627 case MTP_TYPE_UINT64: 628 longValue = packet.getUInt64(); 629 break; 630 case MTP_TYPE_STR: 631 { 632 MtpStringBuffer buffer; 633 packet.getString(buffer); 634 stringValue = env->NewStringUTF((const char *)buffer); 635 break; 636 } 637 default: 638 ALOGE("unsupported type in setDevicePropertyValue\n"); 639 return MTP_RESPONSE_INVALID_OBJECT_PROP_FORMAT; 640 } 641 642 jint result = env->CallIntMethod(mDatabase, method_setDeviceProperty, 643 (jint)property, longValue, stringValue); 644 if (stringValue) 645 env->DeleteLocalRef(stringValue); 646 647 checkAndClearExceptionFromCallback(env, __FUNCTION__); 648 return result; 649 } 650 651 MtpResponseCode MyMtpDatabase::resetDeviceProperty(MtpDeviceProperty property) { 652 return -1; 653 } 654 655 MtpResponseCode MyMtpDatabase::getObjectPropertyList(MtpObjectHandle handle, 656 uint32_t format, uint32_t property, 657 int groupCode, int depth, 658 MtpDataPacket& packet) { 659 JNIEnv* env = AndroidRuntime::getJNIEnv(); 660 jobject list = env->CallObjectMethod(mDatabase, method_getObjectPropertyList, 661 (jlong)handle, (jint)format, (jlong)property, (jint)groupCode, (jint)depth); 662 checkAndClearExceptionFromCallback(env, __FUNCTION__); 663 if (!list) 664 return MTP_RESPONSE_GENERAL_ERROR; 665 int count = env->GetIntField(list, field_mCount); 666 MtpResponseCode result = env->GetIntField(list, field_mResult); 667 668 packet.putUInt32(count); 669 if (count > 0) { 670 jintArray objectHandlesArray = (jintArray)env->GetObjectField(list, field_mObjectHandles); 671 jintArray propertyCodesArray = (jintArray)env->GetObjectField(list, field_mPropertyCodes); 672 jintArray dataTypesArray = (jintArray)env->GetObjectField(list, field_mDataTypes); 673 jlongArray longValuesArray = (jlongArray)env->GetObjectField(list, field_mLongValues); 674 jobjectArray stringValuesArray = (jobjectArray)env->GetObjectField(list, field_mStringValues); 675 676 jint* objectHandles = env->GetIntArrayElements(objectHandlesArray, 0); 677 jint* propertyCodes = env->GetIntArrayElements(propertyCodesArray, 0); 678 jint* dataTypes = env->GetIntArrayElements(dataTypesArray, 0); 679 jlong* longValues = (longValuesArray ? env->GetLongArrayElements(longValuesArray, 0) : NULL); 680 681 for (int i = 0; i < count; i++) { 682 packet.putUInt32(objectHandles[i]); 683 packet.putUInt16(propertyCodes[i]); 684 int type = dataTypes[i]; 685 packet.putUInt16(type); 686 687 switch (type) { 688 case MTP_TYPE_INT8: 689 packet.putInt8(longValues[i]); 690 break; 691 case MTP_TYPE_UINT8: 692 packet.putUInt8(longValues[i]); 693 break; 694 case MTP_TYPE_INT16: 695 packet.putInt16(longValues[i]); 696 break; 697 case MTP_TYPE_UINT16: 698 packet.putUInt16(longValues[i]); 699 break; 700 case MTP_TYPE_INT32: 701 packet.putInt32(longValues[i]); 702 break; 703 case MTP_TYPE_UINT32: 704 packet.putUInt32(longValues[i]); 705 break; 706 case MTP_TYPE_INT64: 707 packet.putInt64(longValues[i]); 708 break; 709 case MTP_TYPE_UINT64: 710 packet.putUInt64(longValues[i]); 711 break; 712 case MTP_TYPE_INT128: 713 packet.putInt128(longValues[i]); 714 break; 715 case MTP_TYPE_UINT128: 716 packet.putUInt128(longValues[i]); 717 break; 718 case MTP_TYPE_STR: { 719 jstring value = (jstring)env->GetObjectArrayElement(stringValuesArray, i); 720 const char *valueStr = (value ? env->GetStringUTFChars(value, NULL) : NULL); 721 if (valueStr) { 722 packet.putString(valueStr); 723 env->ReleaseStringUTFChars(value, valueStr); 724 } else { 725 packet.putEmptyString(); 726 } 727 env->DeleteLocalRef(value); 728 break; 729 } 730 default: 731 ALOGE("bad or unsupported data type in MyMtpDatabase::getObjectPropertyList"); 732 break; 733 } 734 } 735 736 env->ReleaseIntArrayElements(objectHandlesArray, objectHandles, 0); 737 env->ReleaseIntArrayElements(propertyCodesArray, propertyCodes, 0); 738 env->ReleaseIntArrayElements(dataTypesArray, dataTypes, 0); 739 if (longValues) 740 env->ReleaseLongArrayElements(longValuesArray, longValues, 0); 741 742 env->DeleteLocalRef(objectHandlesArray); 743 env->DeleteLocalRef(propertyCodesArray); 744 env->DeleteLocalRef(dataTypesArray); 745 if (longValuesArray) 746 env->DeleteLocalRef(longValuesArray); 747 if (stringValuesArray) 748 env->DeleteLocalRef(stringValuesArray); 749 } 750 751 env->DeleteLocalRef(list); 752 checkAndClearExceptionFromCallback(env, __FUNCTION__); 753 return result; 754 } 755 756 static void foreachentry(ExifEntry *entry, void *user) { 757 char buf[1024]; 758 ALOGI("entry %x, format %d, size %d: %s", 759 entry->tag, entry->format, entry->size, exif_entry_get_value(entry, buf, sizeof(buf))); 760 } 761 762 static void foreachcontent(ExifContent *content, void *user) { 763 ALOGI("content %d", exif_content_get_ifd(content)); 764 exif_content_foreach_entry(content, foreachentry, user); 765 } 766 767 static long getLongFromExifEntry(ExifEntry *e) { 768 ExifByteOrder o = exif_data_get_byte_order(e->parent->parent); 769 return exif_get_long(e->data, o); 770 } 771 772 MtpResponseCode MyMtpDatabase::getObjectInfo(MtpObjectHandle handle, 773 MtpObjectInfo& info) { 774 char date[20]; 775 MtpString path; 776 int64_t length; 777 MtpObjectFormat format; 778 779 MtpResponseCode result = getObjectFilePath(handle, path, length, format); 780 if (result != MTP_RESPONSE_OK) { 781 return result; 782 } 783 info.mCompressedSize = (length > 0xFFFFFFFFLL ? 0xFFFFFFFF : (uint32_t)length); 784 785 JNIEnv* env = AndroidRuntime::getJNIEnv(); 786 if (!env->CallBooleanMethod(mDatabase, method_getObjectInfo, 787 (jint)handle, mIntBuffer, mStringBuffer, mLongBuffer)) { 788 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 789 } 790 791 jint* intValues = env->GetIntArrayElements(mIntBuffer, 0); 792 info.mStorageID = intValues[0]; 793 info.mFormat = intValues[1]; 794 info.mParent = intValues[2]; 795 env->ReleaseIntArrayElements(mIntBuffer, intValues, 0); 796 797 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 798 info.mDateCreated = longValues[0]; 799 info.mDateModified = longValues[1]; 800 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 801 802 // info.mAssociationType = (format == MTP_FORMAT_ASSOCIATION ? 803 // MTP_ASSOCIATION_TYPE_GENERIC_FOLDER : 804 // MTP_ASSOCIATION_TYPE_UNDEFINED); 805 info.mAssociationType = MTP_ASSOCIATION_TYPE_UNDEFINED; 806 807 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 808 MtpString temp(str); 809 info.mName = strdup((const char *)temp); 810 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 811 812 // read EXIF data for thumbnail information 813 if (info.mFormat == MTP_FORMAT_EXIF_JPEG || info.mFormat == MTP_FORMAT_JFIF) { 814 815 ExifData *exifdata = exif_data_new_from_file(path); 816 if (exifdata) { 817 //exif_data_foreach_content(exifdata, foreachcontent, NULL); 818 819 // XXX get this from exif, or parse jpeg header instead? 820 ExifEntry *w = exif_content_get_entry( 821 exifdata->ifd[EXIF_IFD_EXIF], EXIF_TAG_PIXEL_X_DIMENSION); 822 ExifEntry *h = exif_content_get_entry( 823 exifdata->ifd[EXIF_IFD_EXIF], EXIF_TAG_PIXEL_Y_DIMENSION); 824 info.mThumbCompressedSize = exifdata->data ? exifdata->size : 0; 825 info.mThumbFormat = MTP_FORMAT_EXIF_JPEG; 826 info.mImagePixWidth = w ? getLongFromExifEntry(w) : 0; 827 info.mImagePixHeight = h ? getLongFromExifEntry(h) : 0; 828 exif_data_unref(exifdata); 829 } 830 } 831 832 checkAndClearExceptionFromCallback(env, __FUNCTION__); 833 return MTP_RESPONSE_OK; 834 } 835 836 void* MyMtpDatabase::getThumbnail(MtpObjectHandle handle, size_t& outThumbSize) { 837 MtpString path; 838 int64_t length; 839 MtpObjectFormat format; 840 void* result = NULL; 841 outThumbSize = 0; 842 843 if (getObjectFilePath(handle, path, length, format) == MTP_RESPONSE_OK 844 && (format == MTP_FORMAT_EXIF_JPEG || format == MTP_FORMAT_JFIF)) { 845 846 ExifData *exifdata = exif_data_new_from_file(path); 847 if (exifdata) { 848 if (exifdata->data) { 849 result = malloc(exifdata->size); 850 if (result) { 851 memcpy(result, exifdata->data, exifdata->size); 852 outThumbSize = exifdata->size; 853 } 854 } 855 exif_data_unref(exifdata); 856 } 857 } 858 859 return result; 860 } 861 862 MtpResponseCode MyMtpDatabase::getObjectFilePath(MtpObjectHandle handle, 863 MtpString& outFilePath, 864 int64_t& outFileLength, 865 MtpObjectFormat& outFormat) { 866 JNIEnv* env = AndroidRuntime::getJNIEnv(); 867 jint result = env->CallIntMethod(mDatabase, method_getObjectFilePath, 868 (jint)handle, mStringBuffer, mLongBuffer); 869 if (result != MTP_RESPONSE_OK) { 870 checkAndClearExceptionFromCallback(env, __FUNCTION__); 871 return result; 872 } 873 874 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 875 outFilePath.setTo(str, strlen16(str)); 876 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 877 878 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 879 outFileLength = longValues[0]; 880 outFormat = longValues[1]; 881 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 882 883 checkAndClearExceptionFromCallback(env, __FUNCTION__); 884 return result; 885 } 886 887 MtpResponseCode MyMtpDatabase::deleteFile(MtpObjectHandle handle) { 888 JNIEnv* env = AndroidRuntime::getJNIEnv(); 889 MtpResponseCode result = env->CallIntMethod(mDatabase, method_deleteFile, (jint)handle); 890 891 checkAndClearExceptionFromCallback(env, __FUNCTION__); 892 return result; 893 } 894 895 struct PropertyTableEntry { 896 MtpObjectProperty property; 897 int type; 898 }; 899 900 static const PropertyTableEntry kObjectPropertyTable[] = { 901 { MTP_PROPERTY_STORAGE_ID, MTP_TYPE_UINT32 }, 902 { MTP_PROPERTY_OBJECT_FORMAT, MTP_TYPE_UINT16 }, 903 { MTP_PROPERTY_PROTECTION_STATUS, MTP_TYPE_UINT16 }, 904 { MTP_PROPERTY_OBJECT_SIZE, MTP_TYPE_UINT64 }, 905 { MTP_PROPERTY_OBJECT_FILE_NAME, MTP_TYPE_STR }, 906 { MTP_PROPERTY_DATE_MODIFIED, MTP_TYPE_STR }, 907 { MTP_PROPERTY_PARENT_OBJECT, MTP_TYPE_UINT32 }, 908 { MTP_PROPERTY_PERSISTENT_UID, MTP_TYPE_UINT128 }, 909 { MTP_PROPERTY_NAME, MTP_TYPE_STR }, 910 { MTP_PROPERTY_DISPLAY_NAME, MTP_TYPE_STR }, 911 { MTP_PROPERTY_DATE_ADDED, MTP_TYPE_STR }, 912 { MTP_PROPERTY_ARTIST, MTP_TYPE_STR }, 913 { MTP_PROPERTY_ALBUM_NAME, MTP_TYPE_STR }, 914 { MTP_PROPERTY_ALBUM_ARTIST, MTP_TYPE_STR }, 915 { MTP_PROPERTY_TRACK, MTP_TYPE_UINT16 }, 916 { MTP_PROPERTY_ORIGINAL_RELEASE_DATE, MTP_TYPE_STR }, 917 { MTP_PROPERTY_GENRE, MTP_TYPE_STR }, 918 { MTP_PROPERTY_COMPOSER, MTP_TYPE_STR }, 919 { MTP_PROPERTY_DURATION, MTP_TYPE_UINT32 }, 920 { MTP_PROPERTY_DESCRIPTION, MTP_TYPE_STR }, 921 }; 922 923 static const PropertyTableEntry kDevicePropertyTable[] = { 924 { MTP_DEVICE_PROPERTY_SYNCHRONIZATION_PARTNER, MTP_TYPE_STR }, 925 { MTP_DEVICE_PROPERTY_DEVICE_FRIENDLY_NAME, MTP_TYPE_STR }, 926 { MTP_DEVICE_PROPERTY_IMAGE_SIZE, MTP_TYPE_STR }, 927 }; 928 929 bool MyMtpDatabase::getObjectPropertyInfo(MtpObjectProperty property, int& type) { 930 int count = sizeof(kObjectPropertyTable) / sizeof(kObjectPropertyTable[0]); 931 const PropertyTableEntry* entry = kObjectPropertyTable; 932 for (int i = 0; i < count; i++, entry++) { 933 if (entry->property == property) { 934 type = entry->type; 935 return true; 936 } 937 } 938 return false; 939 } 940 941 bool MyMtpDatabase::getDevicePropertyInfo(MtpDeviceProperty property, int& type) { 942 int count = sizeof(kDevicePropertyTable) / sizeof(kDevicePropertyTable[0]); 943 const PropertyTableEntry* entry = kDevicePropertyTable; 944 for (int i = 0; i < count; i++, entry++) { 945 if (entry->property == property) { 946 type = entry->type; 947 return true; 948 } 949 } 950 return false; 951 } 952 953 MtpObjectHandleList* MyMtpDatabase::getObjectReferences(MtpObjectHandle handle) { 954 JNIEnv* env = AndroidRuntime::getJNIEnv(); 955 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, method_getObjectReferences, 956 (jint)handle); 957 if (!array) 958 return NULL; 959 MtpObjectHandleList* list = new MtpObjectHandleList(); 960 jint* handles = env->GetIntArrayElements(array, 0); 961 jsize length = env->GetArrayLength(array); 962 for (int i = 0; i < length; i++) 963 list->push(handles[i]); 964 env->ReleaseIntArrayElements(array, handles, 0); 965 env->DeleteLocalRef(array); 966 967 checkAndClearExceptionFromCallback(env, __FUNCTION__); 968 return list; 969 } 970 971 MtpResponseCode MyMtpDatabase::setObjectReferences(MtpObjectHandle handle, 972 MtpObjectHandleList* references) { 973 JNIEnv* env = AndroidRuntime::getJNIEnv(); 974 int count = references->size(); 975 jintArray array = env->NewIntArray(count); 976 if (!array) { 977 ALOGE("out of memory in setObjectReferences"); 978 return false; 979 } 980 jint* handles = env->GetIntArrayElements(array, 0); 981 for (int i = 0; i < count; i++) 982 handles[i] = (*references)[i]; 983 env->ReleaseIntArrayElements(array, handles, 0); 984 MtpResponseCode result = env->CallIntMethod(mDatabase, method_setObjectReferences, 985 (jint)handle, array); 986 env->DeleteLocalRef(array); 987 988 checkAndClearExceptionFromCallback(env, __FUNCTION__); 989 return result; 990 } 991 992 MtpProperty* MyMtpDatabase::getObjectPropertyDesc(MtpObjectProperty property, 993 MtpObjectFormat format) { 994 MtpProperty* result = NULL; 995 switch (property) { 996 case MTP_PROPERTY_OBJECT_FORMAT: 997 // use format as default value 998 result = new MtpProperty(property, MTP_TYPE_UINT16, false, format); 999 break; 1000 case MTP_PROPERTY_PROTECTION_STATUS: 1001 case MTP_PROPERTY_TRACK: 1002 result = new MtpProperty(property, MTP_TYPE_UINT16); 1003 break; 1004 case MTP_PROPERTY_STORAGE_ID: 1005 case MTP_PROPERTY_PARENT_OBJECT: 1006 case MTP_PROPERTY_DURATION: 1007 result = new MtpProperty(property, MTP_TYPE_UINT32); 1008 break; 1009 case MTP_PROPERTY_OBJECT_SIZE: 1010 result = new MtpProperty(property, MTP_TYPE_UINT64); 1011 break; 1012 case MTP_PROPERTY_PERSISTENT_UID: 1013 result = new MtpProperty(property, MTP_TYPE_UINT128); 1014 break; 1015 case MTP_PROPERTY_NAME: 1016 case MTP_PROPERTY_DISPLAY_NAME: 1017 case MTP_PROPERTY_ARTIST: 1018 case MTP_PROPERTY_ALBUM_NAME: 1019 case MTP_PROPERTY_ALBUM_ARTIST: 1020 case MTP_PROPERTY_GENRE: 1021 case MTP_PROPERTY_COMPOSER: 1022 case MTP_PROPERTY_DESCRIPTION: 1023 result = new MtpProperty(property, MTP_TYPE_STR); 1024 break; 1025 case MTP_PROPERTY_DATE_MODIFIED: 1026 case MTP_PROPERTY_DATE_ADDED: 1027 case MTP_PROPERTY_ORIGINAL_RELEASE_DATE: 1028 result = new MtpProperty(property, MTP_TYPE_STR); 1029 result->setFormDateTime(); 1030 break; 1031 case MTP_PROPERTY_OBJECT_FILE_NAME: 1032 // We allow renaming files and folders 1033 result = new MtpProperty(property, MTP_TYPE_STR, true); 1034 break; 1035 } 1036 1037 return result; 1038 } 1039 1040 MtpProperty* MyMtpDatabase::getDevicePropertyDesc(MtpDeviceProperty property) { 1041 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1042 MtpProperty* result = NULL; 1043 bool writable = false; 1044 1045 switch (property) { 1046 case MTP_DEVICE_PROPERTY_SYNCHRONIZATION_PARTNER: 1047 case MTP_DEVICE_PROPERTY_DEVICE_FRIENDLY_NAME: 1048 writable = true; 1049 // fall through 1050 case MTP_DEVICE_PROPERTY_IMAGE_SIZE: 1051 result = new MtpProperty(property, MTP_TYPE_STR, writable); 1052 1053 // get current value 1054 jint ret = env->CallIntMethod(mDatabase, method_getDeviceProperty, 1055 (jint)property, mLongBuffer, mStringBuffer); 1056 if (ret == MTP_RESPONSE_OK) { 1057 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 1058 result->setCurrentValue(str); 1059 // for read-only properties it is safe to assume current value is default value 1060 if (!writable) 1061 result->setDefaultValue(str); 1062 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 1063 } else { 1064 ALOGE("unable to read device property, response: %04X", ret); 1065 } 1066 break; 1067 } 1068 1069 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1070 return result; 1071 } 1072 1073 void MyMtpDatabase::sessionStarted() { 1074 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1075 env->CallVoidMethod(mDatabase, method_sessionStarted); 1076 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1077 } 1078 1079 void MyMtpDatabase::sessionEnded() { 1080 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1081 env->CallVoidMethod(mDatabase, method_sessionEnded); 1082 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1083 } 1084 1085 // ---------------------------------------------------------------------------- 1086 1087 static void 1088 android_mtp_MtpDatabase_setup(JNIEnv *env, jobject thiz) 1089 { 1090 MyMtpDatabase* database = new MyMtpDatabase(env, thiz); 1091 env->SetIntField(thiz, field_context, (int)database); 1092 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1093 } 1094 1095 static void 1096 android_mtp_MtpDatabase_finalize(JNIEnv *env, jobject thiz) 1097 { 1098 MyMtpDatabase* database = (MyMtpDatabase *)env->GetIntField(thiz, field_context); 1099 database->cleanup(env); 1100 delete database; 1101 env->SetIntField(thiz, field_context, 0); 1102 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1103 } 1104 1105 static jstring 1106 android_mtp_MtpPropertyGroup_format_date_time(JNIEnv *env, jobject thiz, jlong seconds) 1107 { 1108 char date[20]; 1109 formatDateTime(seconds, date, sizeof(date)); 1110 return env->NewStringUTF(date); 1111 } 1112 1113 // ---------------------------------------------------------------------------- 1114 1115 static JNINativeMethod gMtpDatabaseMethods[] = { 1116 {"native_setup", "()V", (void *)android_mtp_MtpDatabase_setup}, 1117 {"native_finalize", "()V", (void *)android_mtp_MtpDatabase_finalize}, 1118 }; 1119 1120 static JNINativeMethod gMtpPropertyGroupMethods[] = { 1121 {"format_date_time", "(J)Ljava/lang/String;", 1122 (void *)android_mtp_MtpPropertyGroup_format_date_time}, 1123 }; 1124 1125 static const char* const kClassPathName = "android/mtp/MtpDatabase"; 1126 1127 int register_android_mtp_MtpDatabase(JNIEnv *env) 1128 { 1129 jclass clazz; 1130 1131 clazz = env->FindClass("android/mtp/MtpDatabase"); 1132 if (clazz == NULL) { 1133 ALOGE("Can't find android/mtp/MtpDatabase"); 1134 return -1; 1135 } 1136 method_beginSendObject = env->GetMethodID(clazz, "beginSendObject", "(Ljava/lang/String;IIIJJ)I"); 1137 if (method_beginSendObject == NULL) { 1138 ALOGE("Can't find beginSendObject"); 1139 return -1; 1140 } 1141 method_endSendObject = env->GetMethodID(clazz, "endSendObject", "(Ljava/lang/String;IIZ)V"); 1142 if (method_endSendObject == NULL) { 1143 ALOGE("Can't find endSendObject"); 1144 return -1; 1145 } 1146 method_getObjectList = env->GetMethodID(clazz, "getObjectList", "(III)[I"); 1147 if (method_getObjectList == NULL) { 1148 ALOGE("Can't find getObjectList"); 1149 return -1; 1150 } 1151 method_getNumObjects = env->GetMethodID(clazz, "getNumObjects", "(III)I"); 1152 if (method_getNumObjects == NULL) { 1153 ALOGE("Can't find getNumObjects"); 1154 return -1; 1155 } 1156 method_getSupportedPlaybackFormats = env->GetMethodID(clazz, "getSupportedPlaybackFormats", "()[I"); 1157 if (method_getSupportedPlaybackFormats == NULL) { 1158 ALOGE("Can't find getSupportedPlaybackFormats"); 1159 return -1; 1160 } 1161 method_getSupportedCaptureFormats = env->GetMethodID(clazz, "getSupportedCaptureFormats", "()[I"); 1162 if (method_getSupportedCaptureFormats == NULL) { 1163 ALOGE("Can't find getSupportedCaptureFormats"); 1164 return -1; 1165 } 1166 method_getSupportedObjectProperties = env->GetMethodID(clazz, "getSupportedObjectProperties", "(I)[I"); 1167 if (method_getSupportedObjectProperties == NULL) { 1168 ALOGE("Can't find getSupportedObjectProperties"); 1169 return -1; 1170 } 1171 method_getSupportedDeviceProperties = env->GetMethodID(clazz, "getSupportedDeviceProperties", "()[I"); 1172 if (method_getSupportedDeviceProperties == NULL) { 1173 ALOGE("Can't find getSupportedDeviceProperties"); 1174 return -1; 1175 } 1176 method_setObjectProperty = env->GetMethodID(clazz, "setObjectProperty", "(IIJLjava/lang/String;)I"); 1177 if (method_setObjectProperty == NULL) { 1178 ALOGE("Can't find setObjectProperty"); 1179 return -1; 1180 } 1181 method_getDeviceProperty = env->GetMethodID(clazz, "getDeviceProperty", "(I[J[C)I"); 1182 if (method_getDeviceProperty == NULL) { 1183 ALOGE("Can't find getDeviceProperty"); 1184 return -1; 1185 } 1186 method_setDeviceProperty = env->GetMethodID(clazz, "setDeviceProperty", "(IJLjava/lang/String;)I"); 1187 if (method_setDeviceProperty == NULL) { 1188 ALOGE("Can't find setDeviceProperty"); 1189 return -1; 1190 } 1191 method_getObjectPropertyList = env->GetMethodID(clazz, "getObjectPropertyList", 1192 "(JIJII)Landroid/mtp/MtpPropertyList;"); 1193 if (method_getObjectPropertyList == NULL) { 1194 ALOGE("Can't find getObjectPropertyList"); 1195 return -1; 1196 } 1197 method_getObjectInfo = env->GetMethodID(clazz, "getObjectInfo", "(I[I[C[J)Z"); 1198 if (method_getObjectInfo == NULL) { 1199 ALOGE("Can't find getObjectInfo"); 1200 return -1; 1201 } 1202 method_getObjectFilePath = env->GetMethodID(clazz, "getObjectFilePath", "(I[C[J)I"); 1203 if (method_getObjectFilePath == NULL) { 1204 ALOGE("Can't find getObjectFilePath"); 1205 return -1; 1206 } 1207 method_deleteFile = env->GetMethodID(clazz, "deleteFile", "(I)I"); 1208 if (method_deleteFile == NULL) { 1209 ALOGE("Can't find deleteFile"); 1210 return -1; 1211 } 1212 method_getObjectReferences = env->GetMethodID(clazz, "getObjectReferences", "(I)[I"); 1213 if (method_getObjectReferences == NULL) { 1214 ALOGE("Can't find getObjectReferences"); 1215 return -1; 1216 } 1217 method_setObjectReferences = env->GetMethodID(clazz, "setObjectReferences", "(I[I)I"); 1218 if (method_setObjectReferences == NULL) { 1219 ALOGE("Can't find setObjectReferences"); 1220 return -1; 1221 } 1222 method_sessionStarted = env->GetMethodID(clazz, "sessionStarted", "()V"); 1223 if (method_sessionStarted == NULL) { 1224 ALOGE("Can't find sessionStarted"); 1225 return -1; 1226 } 1227 method_sessionEnded = env->GetMethodID(clazz, "sessionEnded", "()V"); 1228 if (method_sessionEnded == NULL) { 1229 ALOGE("Can't find sessionEnded"); 1230 return -1; 1231 } 1232 1233 field_context = env->GetFieldID(clazz, "mNativeContext", "I"); 1234 if (field_context == NULL) { 1235 ALOGE("Can't find MtpDatabase.mNativeContext"); 1236 return -1; 1237 } 1238 1239 // now set up fields for MtpPropertyList class 1240 clazz = env->FindClass("android/mtp/MtpPropertyList"); 1241 if (clazz == NULL) { 1242 ALOGE("Can't find android/mtp/MtpPropertyList"); 1243 return -1; 1244 } 1245 field_mCount = env->GetFieldID(clazz, "mCount", "I"); 1246 if (field_mCount == NULL) { 1247 ALOGE("Can't find MtpPropertyList.mCount"); 1248 return -1; 1249 } 1250 field_mResult = env->GetFieldID(clazz, "mResult", "I"); 1251 if (field_mResult == NULL) { 1252 ALOGE("Can't find MtpPropertyList.mResult"); 1253 return -1; 1254 } 1255 field_mObjectHandles = env->GetFieldID(clazz, "mObjectHandles", "[I"); 1256 if (field_mObjectHandles == NULL) { 1257 ALOGE("Can't find MtpPropertyList.mObjectHandles"); 1258 return -1; 1259 } 1260 field_mPropertyCodes = env->GetFieldID(clazz, "mPropertyCodes", "[I"); 1261 if (field_mPropertyCodes == NULL) { 1262 ALOGE("Can't find MtpPropertyList.mPropertyCodes"); 1263 return -1; 1264 } 1265 field_mDataTypes = env->GetFieldID(clazz, "mDataTypes", "[I"); 1266 if (field_mDataTypes == NULL) { 1267 ALOGE("Can't find MtpPropertyList.mDataTypes"); 1268 return -1; 1269 } 1270 field_mLongValues = env->GetFieldID(clazz, "mLongValues", "[J"); 1271 if (field_mLongValues == NULL) { 1272 ALOGE("Can't find MtpPropertyList.mLongValues"); 1273 return -1; 1274 } 1275 field_mStringValues = env->GetFieldID(clazz, "mStringValues", "[Ljava/lang/String;"); 1276 if (field_mStringValues == NULL) { 1277 ALOGE("Can't find MtpPropertyList.mStringValues"); 1278 return -1; 1279 } 1280 1281 if (AndroidRuntime::registerNativeMethods(env, 1282 "android/mtp/MtpDatabase", gMtpDatabaseMethods, NELEM(gMtpDatabaseMethods))) 1283 return -1; 1284 1285 return AndroidRuntime::registerNativeMethods(env, 1286 "android/mtp/MtpPropertyGroup", gMtpPropertyGroupMethods, NELEM(gMtpPropertyGroupMethods)); 1287 } 1288
