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 38extern "C" { 39#include "jhead.h" 40} 41 42using namespace android; 43 44// ---------------------------------------------------------------------------- 45 46static jmethodID method_beginSendObject; 47static jmethodID method_endSendObject; 48static jmethodID method_getObjectList; 49static jmethodID method_getNumObjects; 50static jmethodID method_getSupportedPlaybackFormats; 51static jmethodID method_getSupportedCaptureFormats; 52static jmethodID method_getSupportedObjectProperties; 53static jmethodID method_getSupportedDeviceProperties; 54static jmethodID method_setObjectProperty; 55static jmethodID method_getDeviceProperty; 56static jmethodID method_setDeviceProperty; 57static jmethodID method_getObjectPropertyList; 58static jmethodID method_getObjectInfo; 59static jmethodID method_getObjectFilePath; 60static jmethodID method_deleteFile; 61static jmethodID method_getObjectReferences; 62static jmethodID method_setObjectReferences; 63static jmethodID method_sessionStarted; 64static jmethodID method_sessionEnded; 65 66static jfieldID field_context; 67 68// MtpPropertyList fields 69static jfieldID field_mCount; 70static jfieldID field_mResult; 71static jfieldID field_mObjectHandles; 72static jfieldID field_mPropertyCodes; 73static jfieldID field_mDataTypes; 74static jfieldID field_mLongValues; 75static jfieldID field_mStringValues; 76 77 78MtpDatabase* getMtpDatabase(JNIEnv *env, jobject database) { 79 return (MtpDatabase *)env->GetIntField(database, field_context); 80} 81 82// ---------------------------------------------------------------------------- 83 84class MyMtpDatabase : public MtpDatabase { 85private: 86 jobject mDatabase; 87 jintArray mIntBuffer; 88 jlongArray mLongBuffer; 89 jcharArray mStringBuffer; 90 91public: 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 175static 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 185MyMtpDatabase::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 210void MyMtpDatabase::cleanup(JNIEnv *env) { 211 env->DeleteGlobalRef(mDatabase); 212 env->DeleteGlobalRef(mIntBuffer); 213 env->DeleteGlobalRef(mLongBuffer); 214 env->DeleteGlobalRef(mStringBuffer); 215} 216 217MyMtpDatabase::~MyMtpDatabase() { 218} 219 220MtpObjectHandle 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 238void 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 250MtpObjectHandleList* 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 270int 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 281MtpObjectFormatList* 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 299MtpObjectFormatList* 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 317MtpObjectPropertyList* 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 335MtpDevicePropertyList* 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 353MtpResponseCode 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 } 445out: 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 466MtpResponseCode 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 524MtpResponseCode 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 590MtpResponseCode 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 647MtpResponseCode MyMtpDatabase::resetDeviceProperty(MtpDeviceProperty property) { 648 return -1; 649} 650 651MtpResponseCode 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 752MtpResponseCode 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.mDateModified = longValues[0]; 779 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 780 781// info.mAssociationType = (format == MTP_FORMAT_ASSOCIATION ? 782// MTP_ASSOCIATION_TYPE_GENERIC_FOLDER : 783// MTP_ASSOCIATION_TYPE_UNDEFINED); 784 info.mAssociationType = MTP_ASSOCIATION_TYPE_UNDEFINED; 785 786 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 787 MtpString temp(str); 788 info.mName = strdup((const char *)temp); 789 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 790 791 // read EXIF data for thumbnail information 792 if (info.mFormat == MTP_FORMAT_EXIF_JPEG || info.mFormat == MTP_FORMAT_JFIF) { 793 ResetJpgfile(); 794 // Start with an empty image information structure. 795 memset(&ImageInfo, 0, sizeof(ImageInfo)); 796 ImageInfo.FlashUsed = -1; 797 ImageInfo.MeteringMode = -1; 798 ImageInfo.Whitebalance = -1; 799 strncpy(ImageInfo.FileName, (const char *)path, PATH_MAX); 800 if (ReadJpegFile((const char*)path, READ_METADATA)) { 801 Section_t* section = FindSection(M_EXIF); 802 if (section) { 803 info.mThumbCompressedSize = ImageInfo.ThumbnailSize; 804 info.mThumbFormat = MTP_FORMAT_EXIF_JPEG; 805 info.mImagePixWidth = ImageInfo.Width; 806 info.mImagePixHeight = ImageInfo.Height; 807 } 808 } 809 DiscardData(); 810 } 811 812 checkAndClearExceptionFromCallback(env, __FUNCTION__); 813 return MTP_RESPONSE_OK; 814} 815 816void* MyMtpDatabase::getThumbnail(MtpObjectHandle handle, size_t& outThumbSize) { 817 MtpString path; 818 int64_t length; 819 MtpObjectFormat format; 820 void* result = NULL; 821 outThumbSize = 0; 822 823 if (getObjectFilePath(handle, path, length, format) == MTP_RESPONSE_OK 824 && (format == MTP_FORMAT_EXIF_JPEG || format == MTP_FORMAT_JFIF)) { 825 ResetJpgfile(); 826 // Start with an empty image information structure. 827 memset(&ImageInfo, 0, sizeof(ImageInfo)); 828 ImageInfo.FlashUsed = -1; 829 ImageInfo.MeteringMode = -1; 830 ImageInfo.Whitebalance = -1; 831 strncpy(ImageInfo.FileName, (const char *)path, PATH_MAX); 832 if (ReadJpegFile((const char*)path, READ_METADATA)) { 833 Section_t* section = FindSection(M_EXIF); 834 if (section) { 835 outThumbSize = ImageInfo.ThumbnailSize; 836 result = malloc(outThumbSize); 837 if (result) 838 memcpy(result, section->Data + ImageInfo.ThumbnailOffset + 8, outThumbSize); 839 } 840 DiscardData(); 841 } 842 } 843 844 return result; 845} 846 847MtpResponseCode MyMtpDatabase::getObjectFilePath(MtpObjectHandle handle, 848 MtpString& outFilePath, 849 int64_t& outFileLength, 850 MtpObjectFormat& outFormat) { 851 JNIEnv* env = AndroidRuntime::getJNIEnv(); 852 jint result = env->CallIntMethod(mDatabase, method_getObjectFilePath, 853 (jint)handle, mStringBuffer, mLongBuffer); 854 if (result != MTP_RESPONSE_OK) { 855 checkAndClearExceptionFromCallback(env, __FUNCTION__); 856 return result; 857 } 858 859 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 860 outFilePath.setTo(str, strlen16(str)); 861 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 862 863 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 864 outFileLength = longValues[0]; 865 outFormat = longValues[1]; 866 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 867 868 checkAndClearExceptionFromCallback(env, __FUNCTION__); 869 return result; 870} 871 872MtpResponseCode MyMtpDatabase::deleteFile(MtpObjectHandle handle) { 873 JNIEnv* env = AndroidRuntime::getJNIEnv(); 874 MtpResponseCode result = env->CallIntMethod(mDatabase, method_deleteFile, (jint)handle); 875 876 checkAndClearExceptionFromCallback(env, __FUNCTION__); 877 return result; 878} 879 880struct PropertyTableEntry { 881 MtpObjectProperty property; 882 int type; 883}; 884 885static const PropertyTableEntry kObjectPropertyTable[] = { 886 { MTP_PROPERTY_STORAGE_ID, MTP_TYPE_UINT32 }, 887 { MTP_PROPERTY_OBJECT_FORMAT, MTP_TYPE_UINT16 }, 888 { MTP_PROPERTY_PROTECTION_STATUS, MTP_TYPE_UINT16 }, 889 { MTP_PROPERTY_OBJECT_SIZE, MTP_TYPE_UINT64 }, 890 { MTP_PROPERTY_OBJECT_FILE_NAME, MTP_TYPE_STR }, 891 { MTP_PROPERTY_DATE_MODIFIED, MTP_TYPE_STR }, 892 { MTP_PROPERTY_PARENT_OBJECT, MTP_TYPE_UINT32 }, 893 { MTP_PROPERTY_PERSISTENT_UID, MTP_TYPE_UINT128 }, 894 { MTP_PROPERTY_NAME, MTP_TYPE_STR }, 895 { MTP_PROPERTY_DISPLAY_NAME, MTP_TYPE_STR }, 896 { MTP_PROPERTY_DATE_ADDED, MTP_TYPE_STR }, 897 { MTP_PROPERTY_ARTIST, MTP_TYPE_STR }, 898 { MTP_PROPERTY_ALBUM_NAME, MTP_TYPE_STR }, 899 { MTP_PROPERTY_ALBUM_ARTIST, MTP_TYPE_STR }, 900 { MTP_PROPERTY_TRACK, MTP_TYPE_UINT16 }, 901 { MTP_PROPERTY_ORIGINAL_RELEASE_DATE, MTP_TYPE_STR }, 902 { MTP_PROPERTY_GENRE, MTP_TYPE_STR }, 903 { MTP_PROPERTY_COMPOSER, MTP_TYPE_STR }, 904 { MTP_PROPERTY_DURATION, MTP_TYPE_UINT32 }, 905 { MTP_PROPERTY_DESCRIPTION, MTP_TYPE_STR }, 906}; 907 908static const PropertyTableEntry kDevicePropertyTable[] = { 909 { MTP_DEVICE_PROPERTY_SYNCHRONIZATION_PARTNER, MTP_TYPE_STR }, 910 { MTP_DEVICE_PROPERTY_DEVICE_FRIENDLY_NAME, MTP_TYPE_STR }, 911 { MTP_DEVICE_PROPERTY_IMAGE_SIZE, MTP_TYPE_STR }, 912}; 913 914bool MyMtpDatabase::getObjectPropertyInfo(MtpObjectProperty property, int& type) { 915 int count = sizeof(kObjectPropertyTable) / sizeof(kObjectPropertyTable[0]); 916 const PropertyTableEntry* entry = kObjectPropertyTable; 917 for (int i = 0; i < count; i++, entry++) { 918 if (entry->property == property) { 919 type = entry->type; 920 return true; 921 } 922 } 923 return false; 924} 925 926bool MyMtpDatabase::getDevicePropertyInfo(MtpDeviceProperty property, int& type) { 927 int count = sizeof(kDevicePropertyTable) / sizeof(kDevicePropertyTable[0]); 928 const PropertyTableEntry* entry = kDevicePropertyTable; 929 for (int i = 0; i < count; i++, entry++) { 930 if (entry->property == property) { 931 type = entry->type; 932 return true; 933 } 934 } 935 return false; 936} 937 938MtpObjectHandleList* MyMtpDatabase::getObjectReferences(MtpObjectHandle handle) { 939 JNIEnv* env = AndroidRuntime::getJNIEnv(); 940 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, method_getObjectReferences, 941 (jint)handle); 942 if (!array) 943 return NULL; 944 MtpObjectHandleList* list = new MtpObjectHandleList(); 945 jint* handles = env->GetIntArrayElements(array, 0); 946 jsize length = env->GetArrayLength(array); 947 for (int i = 0; i < length; i++) 948 list->push(handles[i]); 949 env->ReleaseIntArrayElements(array, handles, 0); 950 env->DeleteLocalRef(array); 951 952 checkAndClearExceptionFromCallback(env, __FUNCTION__); 953 return list; 954} 955 956MtpResponseCode MyMtpDatabase::setObjectReferences(MtpObjectHandle handle, 957 MtpObjectHandleList* references) { 958 JNIEnv* env = AndroidRuntime::getJNIEnv(); 959 int count = references->size(); 960 jintArray array = env->NewIntArray(count); 961 if (!array) { 962 ALOGE("out of memory in setObjectReferences"); 963 return false; 964 } 965 jint* handles = env->GetIntArrayElements(array, 0); 966 for (int i = 0; i < count; i++) 967 handles[i] = (*references)[i]; 968 env->ReleaseIntArrayElements(array, handles, 0); 969 MtpResponseCode result = env->CallIntMethod(mDatabase, method_setObjectReferences, 970 (jint)handle, array); 971 env->DeleteLocalRef(array); 972 973 checkAndClearExceptionFromCallback(env, __FUNCTION__); 974 return result; 975} 976 977MtpProperty* MyMtpDatabase::getObjectPropertyDesc(MtpObjectProperty property, 978 MtpObjectFormat format) { 979 MtpProperty* result = NULL; 980 switch (property) { 981 case MTP_PROPERTY_OBJECT_FORMAT: 982 // use format as default value 983 result = new MtpProperty(property, MTP_TYPE_UINT16, false, format); 984 break; 985 case MTP_PROPERTY_PROTECTION_STATUS: 986 case MTP_PROPERTY_TRACK: 987 result = new MtpProperty(property, MTP_TYPE_UINT16); 988 break; 989 case MTP_PROPERTY_STORAGE_ID: 990 case MTP_PROPERTY_PARENT_OBJECT: 991 case MTP_PROPERTY_DURATION: 992 result = new MtpProperty(property, MTP_TYPE_UINT32); 993 break; 994 case MTP_PROPERTY_OBJECT_SIZE: 995 result = new MtpProperty(property, MTP_TYPE_UINT64); 996 break; 997 case MTP_PROPERTY_PERSISTENT_UID: 998 result = new MtpProperty(property, MTP_TYPE_UINT128); 999 break; 1000 case MTP_PROPERTY_NAME: 1001 case MTP_PROPERTY_DISPLAY_NAME: 1002 case MTP_PROPERTY_ARTIST: 1003 case MTP_PROPERTY_ALBUM_NAME: 1004 case MTP_PROPERTY_ALBUM_ARTIST: 1005 case MTP_PROPERTY_GENRE: 1006 case MTP_PROPERTY_COMPOSER: 1007 case MTP_PROPERTY_DESCRIPTION: 1008 result = new MtpProperty(property, MTP_TYPE_STR); 1009 break; 1010 case MTP_PROPERTY_DATE_MODIFIED: 1011 case MTP_PROPERTY_DATE_ADDED: 1012 case MTP_PROPERTY_ORIGINAL_RELEASE_DATE: 1013 result = new MtpProperty(property, MTP_TYPE_STR); 1014 result->setFormDateTime(); 1015 break; 1016 case MTP_PROPERTY_OBJECT_FILE_NAME: 1017 // We allow renaming files and folders 1018 result = new MtpProperty(property, MTP_TYPE_STR, true); 1019 break; 1020 } 1021 1022 return result; 1023} 1024 1025MtpProperty* MyMtpDatabase::getDevicePropertyDesc(MtpDeviceProperty property) { 1026 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1027 MtpProperty* result = NULL; 1028 bool writable = false; 1029 1030 switch (property) { 1031 case MTP_DEVICE_PROPERTY_SYNCHRONIZATION_PARTNER: 1032 case MTP_DEVICE_PROPERTY_DEVICE_FRIENDLY_NAME: 1033 writable = true; 1034 // fall through 1035 case MTP_DEVICE_PROPERTY_IMAGE_SIZE: 1036 result = new MtpProperty(property, MTP_TYPE_STR, writable); 1037 1038 // get current value 1039 jint ret = env->CallIntMethod(mDatabase, method_getDeviceProperty, 1040 (jint)property, mLongBuffer, mStringBuffer); 1041 if (ret == MTP_RESPONSE_OK) { 1042 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 1043 result->setCurrentValue(str); 1044 // for read-only properties it is safe to assume current value is default value 1045 if (!writable) 1046 result->setDefaultValue(str); 1047 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 1048 } else { 1049 ALOGE("unable to read device property, response: %04X", ret); 1050 } 1051 break; 1052 } 1053 1054 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1055 return result; 1056} 1057 1058void MyMtpDatabase::sessionStarted() { 1059 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1060 env->CallVoidMethod(mDatabase, method_sessionStarted); 1061 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1062} 1063 1064void MyMtpDatabase::sessionEnded() { 1065 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1066 env->CallVoidMethod(mDatabase, method_sessionEnded); 1067 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1068} 1069 1070// ---------------------------------------------------------------------------- 1071 1072static void 1073android_mtp_MtpDatabase_setup(JNIEnv *env, jobject thiz) 1074{ 1075 MyMtpDatabase* database = new MyMtpDatabase(env, thiz); 1076 env->SetIntField(thiz, field_context, (int)database); 1077 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1078} 1079 1080static void 1081android_mtp_MtpDatabase_finalize(JNIEnv *env, jobject thiz) 1082{ 1083 MyMtpDatabase* database = (MyMtpDatabase *)env->GetIntField(thiz, field_context); 1084 database->cleanup(env); 1085 delete database; 1086 env->SetIntField(thiz, field_context, 0); 1087 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1088} 1089 1090static jstring 1091android_mtp_MtpPropertyGroup_format_date_time(JNIEnv *env, jobject thiz, jlong seconds) 1092{ 1093 char date[20]; 1094 formatDateTime(seconds, date, sizeof(date)); 1095 return env->NewStringUTF(date); 1096} 1097 1098// ---------------------------------------------------------------------------- 1099 1100static JNINativeMethod gMtpDatabaseMethods[] = { 1101 {"native_setup", "()V", (void *)android_mtp_MtpDatabase_setup}, 1102 {"native_finalize", "()V", (void *)android_mtp_MtpDatabase_finalize}, 1103}; 1104 1105static JNINativeMethod gMtpPropertyGroupMethods[] = { 1106 {"format_date_time", "(J)Ljava/lang/String;", 1107 (void *)android_mtp_MtpPropertyGroup_format_date_time}, 1108}; 1109 1110static const char* const kClassPathName = "android/mtp/MtpDatabase"; 1111 1112int register_android_mtp_MtpDatabase(JNIEnv *env) 1113{ 1114 jclass clazz; 1115 1116 clazz = env->FindClass("android/mtp/MtpDatabase"); 1117 if (clazz == NULL) { 1118 ALOGE("Can't find android/mtp/MtpDatabase"); 1119 return -1; 1120 } 1121 method_beginSendObject = env->GetMethodID(clazz, "beginSendObject", "(Ljava/lang/String;IIIJJ)I"); 1122 if (method_beginSendObject == NULL) { 1123 ALOGE("Can't find beginSendObject"); 1124 return -1; 1125 } 1126 method_endSendObject = env->GetMethodID(clazz, "endSendObject", "(Ljava/lang/String;IIZ)V"); 1127 if (method_endSendObject == NULL) { 1128 ALOGE("Can't find endSendObject"); 1129 return -1; 1130 } 1131 method_getObjectList = env->GetMethodID(clazz, "getObjectList", "(III)[I"); 1132 if (method_getObjectList == NULL) { 1133 ALOGE("Can't find getObjectList"); 1134 return -1; 1135 } 1136 method_getNumObjects = env->GetMethodID(clazz, "getNumObjects", "(III)I"); 1137 if (method_getNumObjects == NULL) { 1138 ALOGE("Can't find getNumObjects"); 1139 return -1; 1140 } 1141 method_getSupportedPlaybackFormats = env->GetMethodID(clazz, "getSupportedPlaybackFormats", "()[I"); 1142 if (method_getSupportedPlaybackFormats == NULL) { 1143 ALOGE("Can't find getSupportedPlaybackFormats"); 1144 return -1; 1145 } 1146 method_getSupportedCaptureFormats = env->GetMethodID(clazz, "getSupportedCaptureFormats", "()[I"); 1147 if (method_getSupportedCaptureFormats == NULL) { 1148 ALOGE("Can't find getSupportedCaptureFormats"); 1149 return -1; 1150 } 1151 method_getSupportedObjectProperties = env->GetMethodID(clazz, "getSupportedObjectProperties", "(I)[I"); 1152 if (method_getSupportedObjectProperties == NULL) { 1153 ALOGE("Can't find getSupportedObjectProperties"); 1154 return -1; 1155 } 1156 method_getSupportedDeviceProperties = env->GetMethodID(clazz, "getSupportedDeviceProperties", "()[I"); 1157 if (method_getSupportedDeviceProperties == NULL) { 1158 ALOGE("Can't find getSupportedDeviceProperties"); 1159 return -1; 1160 } 1161 method_setObjectProperty = env->GetMethodID(clazz, "setObjectProperty", "(IIJLjava/lang/String;)I"); 1162 if (method_setObjectProperty == NULL) { 1163 ALOGE("Can't find setObjectProperty"); 1164 return -1; 1165 } 1166 method_getDeviceProperty = env->GetMethodID(clazz, "getDeviceProperty", "(I[J[C)I"); 1167 if (method_getDeviceProperty == NULL) { 1168 ALOGE("Can't find getDeviceProperty"); 1169 return -1; 1170 } 1171 method_setDeviceProperty = env->GetMethodID(clazz, "setDeviceProperty", "(IJLjava/lang/String;)I"); 1172 if (method_setDeviceProperty == NULL) { 1173 ALOGE("Can't find setDeviceProperty"); 1174 return -1; 1175 } 1176 method_getObjectPropertyList = env->GetMethodID(clazz, "getObjectPropertyList", 1177 "(JIJII)Landroid/mtp/MtpPropertyList;"); 1178 if (method_getObjectPropertyList == NULL) { 1179 ALOGE("Can't find getObjectPropertyList"); 1180 return -1; 1181 } 1182 method_getObjectInfo = env->GetMethodID(clazz, "getObjectInfo", "(I[I[C[J)Z"); 1183 if (method_getObjectInfo == NULL) { 1184 ALOGE("Can't find getObjectInfo"); 1185 return -1; 1186 } 1187 method_getObjectFilePath = env->GetMethodID(clazz, "getObjectFilePath", "(I[C[J)I"); 1188 if (method_getObjectFilePath == NULL) { 1189 ALOGE("Can't find getObjectFilePath"); 1190 return -1; 1191 } 1192 method_deleteFile = env->GetMethodID(clazz, "deleteFile", "(I)I"); 1193 if (method_deleteFile == NULL) { 1194 ALOGE("Can't find deleteFile"); 1195 return -1; 1196 } 1197 method_getObjectReferences = env->GetMethodID(clazz, "getObjectReferences", "(I)[I"); 1198 if (method_getObjectReferences == NULL) { 1199 ALOGE("Can't find getObjectReferences"); 1200 return -1; 1201 } 1202 method_setObjectReferences = env->GetMethodID(clazz, "setObjectReferences", "(I[I)I"); 1203 if (method_setObjectReferences == NULL) { 1204 ALOGE("Can't find setObjectReferences"); 1205 return -1; 1206 } 1207 method_sessionStarted = env->GetMethodID(clazz, "sessionStarted", "()V"); 1208 if (method_sessionStarted == NULL) { 1209 ALOGE("Can't find sessionStarted"); 1210 return -1; 1211 } 1212 method_sessionEnded = env->GetMethodID(clazz, "sessionEnded", "()V"); 1213 if (method_sessionEnded == NULL) { 1214 ALOGE("Can't find sessionEnded"); 1215 return -1; 1216 } 1217 1218 field_context = env->GetFieldID(clazz, "mNativeContext", "I"); 1219 if (field_context == NULL) { 1220 ALOGE("Can't find MtpDatabase.mNativeContext"); 1221 return -1; 1222 } 1223 1224 // now set up fields for MtpPropertyList class 1225 clazz = env->FindClass("android/mtp/MtpPropertyList"); 1226 if (clazz == NULL) { 1227 ALOGE("Can't find android/mtp/MtpPropertyList"); 1228 return -1; 1229 } 1230 field_mCount = env->GetFieldID(clazz, "mCount", "I"); 1231 if (field_mCount == NULL) { 1232 ALOGE("Can't find MtpPropertyList.mCount"); 1233 return -1; 1234 } 1235 field_mResult = env->GetFieldID(clazz, "mResult", "I"); 1236 if (field_mResult == NULL) { 1237 ALOGE("Can't find MtpPropertyList.mResult"); 1238 return -1; 1239 } 1240 field_mObjectHandles = env->GetFieldID(clazz, "mObjectHandles", "[I"); 1241 if (field_mObjectHandles == NULL) { 1242 ALOGE("Can't find MtpPropertyList.mObjectHandles"); 1243 return -1; 1244 } 1245 field_mPropertyCodes = env->GetFieldID(clazz, "mPropertyCodes", "[I"); 1246 if (field_mPropertyCodes == NULL) { 1247 ALOGE("Can't find MtpPropertyList.mPropertyCodes"); 1248 return -1; 1249 } 1250 field_mDataTypes = env->GetFieldID(clazz, "mDataTypes", "[I"); 1251 if (field_mDataTypes == NULL) { 1252 ALOGE("Can't find MtpPropertyList.mDataTypes"); 1253 return -1; 1254 } 1255 field_mLongValues = env->GetFieldID(clazz, "mLongValues", "[J"); 1256 if (field_mLongValues == NULL) { 1257 ALOGE("Can't find MtpPropertyList.mLongValues"); 1258 return -1; 1259 } 1260 field_mStringValues = env->GetFieldID(clazz, "mStringValues", "[Ljava/lang/String;"); 1261 if (field_mStringValues == NULL) { 1262 ALOGE("Can't find MtpPropertyList.mStringValues"); 1263 return -1; 1264 } 1265 1266 if (AndroidRuntime::registerNativeMethods(env, 1267 "android/mtp/MtpDatabase", gMtpDatabaseMethods, NELEM(gMtpDatabaseMethods))) 1268 return -1; 1269 1270 return AndroidRuntime::registerNativeMethods(env, 1271 "android/mtp/MtpPropertyGroup", gMtpPropertyGroupMethods, NELEM(gMtpPropertyGroupMethods)); 1272} 1273