android_mtp_MtpDatabase.cpp revision 2d1e078ac45a646ee55bb9aca022dafd143ff95b
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 <assert.h> 21#include <fcntl.h> 22#include <inttypes.h> 23#include <limits.h> 24#include <stdio.h> 25#include <unistd.h> 26 27#include "jni.h" 28#include "JNIHelp.h" 29#include "android_runtime/AndroidRuntime.h" 30#include "android_runtime/Log.h" 31 32#include "MtpDatabase.h" 33#include "MtpDataPacket.h" 34#include "MtpObjectInfo.h" 35#include "MtpProperty.h" 36#include "MtpStringBuffer.h" 37#include "MtpUtils.h" 38#include "mtp.h" 39 40extern "C" { 41#include "libexif/exif-content.h" 42#include "libexif/exif-data.h" 43#include "libexif/exif-tag.h" 44#include "libexif/exif-utils.h" 45} 46 47using namespace android; 48 49// ---------------------------------------------------------------------------- 50 51static jmethodID method_beginSendObject; 52static jmethodID method_endSendObject; 53static jmethodID method_getObjectList; 54static jmethodID method_getNumObjects; 55static jmethodID method_getSupportedPlaybackFormats; 56static jmethodID method_getSupportedCaptureFormats; 57static jmethodID method_getSupportedObjectProperties; 58static jmethodID method_getSupportedDeviceProperties; 59static jmethodID method_setObjectProperty; 60static jmethodID method_getDeviceProperty; 61static jmethodID method_setDeviceProperty; 62static jmethodID method_getObjectPropertyList; 63static jmethodID method_getObjectInfo; 64static jmethodID method_getObjectFilePath; 65static jmethodID method_deleteFile; 66static jmethodID method_getObjectReferences; 67static jmethodID method_setObjectReferences; 68static jmethodID method_sessionStarted; 69static jmethodID method_sessionEnded; 70 71static jfieldID field_context; 72static jfieldID field_batteryLevel; 73static jfieldID field_batteryScale; 74 75// MtpPropertyList fields 76static jfieldID field_mCount; 77static jfieldID field_mResult; 78static jfieldID field_mObjectHandles; 79static jfieldID field_mPropertyCodes; 80static jfieldID field_mDataTypes; 81static jfieldID field_mLongValues; 82static jfieldID field_mStringValues; 83 84 85MtpDatabase* getMtpDatabase(JNIEnv *env, jobject database) { 86 return (MtpDatabase *)env->GetLongField(database, field_context); 87} 88 89// ---------------------------------------------------------------------------- 90 91class MyMtpDatabase : public MtpDatabase { 92private: 93 jobject mDatabase; 94 jintArray mIntBuffer; 95 jlongArray mLongBuffer; 96 jcharArray mStringBuffer; 97 98public: 99 MyMtpDatabase(JNIEnv *env, jobject client); 100 virtual ~MyMtpDatabase(); 101 void cleanup(JNIEnv *env); 102 103 virtual MtpObjectHandle beginSendObject(const char* path, 104 MtpObjectFormat format, 105 MtpObjectHandle parent, 106 MtpStorageID storage, 107 uint64_t size, 108 time_t modified); 109 110 virtual void endSendObject(const char* path, 111 MtpObjectHandle handle, 112 MtpObjectFormat format, 113 bool succeeded); 114 115 virtual MtpObjectHandleList* getObjectList(MtpStorageID storageID, 116 MtpObjectFormat format, 117 MtpObjectHandle parent); 118 119 virtual int getNumObjects(MtpStorageID storageID, 120 MtpObjectFormat format, 121 MtpObjectHandle parent); 122 123 // callee should delete[] the results from these 124 // results can be NULL 125 virtual MtpObjectFormatList* getSupportedPlaybackFormats(); 126 virtual MtpObjectFormatList* getSupportedCaptureFormats(); 127 virtual MtpObjectPropertyList* getSupportedObjectProperties(MtpObjectFormat format); 128 virtual MtpDevicePropertyList* getSupportedDeviceProperties(); 129 130 virtual MtpResponseCode getObjectPropertyValue(MtpObjectHandle handle, 131 MtpObjectProperty property, 132 MtpDataPacket& packet); 133 134 virtual MtpResponseCode setObjectPropertyValue(MtpObjectHandle handle, 135 MtpObjectProperty property, 136 MtpDataPacket& packet); 137 138 virtual MtpResponseCode getDevicePropertyValue(MtpDeviceProperty property, 139 MtpDataPacket& packet); 140 141 virtual MtpResponseCode setDevicePropertyValue(MtpDeviceProperty property, 142 MtpDataPacket& packet); 143 144 virtual MtpResponseCode resetDeviceProperty(MtpDeviceProperty property); 145 146 virtual MtpResponseCode getObjectPropertyList(MtpObjectHandle handle, 147 uint32_t format, uint32_t property, 148 int groupCode, int depth, 149 MtpDataPacket& packet); 150 151 virtual MtpResponseCode getObjectInfo(MtpObjectHandle handle, 152 MtpObjectInfo& info); 153 154 virtual void* getThumbnail(MtpObjectHandle handle, size_t& outThumbSize); 155 156 virtual MtpResponseCode getObjectFilePath(MtpObjectHandle handle, 157 MtpString& outFilePath, 158 int64_t& outFileLength, 159 MtpObjectFormat& outFormat); 160 virtual MtpResponseCode deleteFile(MtpObjectHandle handle); 161 162 bool getObjectPropertyInfo(MtpObjectProperty property, int& type); 163 bool getDevicePropertyInfo(MtpDeviceProperty property, int& type); 164 165 virtual MtpObjectHandleList* getObjectReferences(MtpObjectHandle handle); 166 167 virtual MtpResponseCode setObjectReferences(MtpObjectHandle handle, 168 MtpObjectHandleList* references); 169 170 virtual MtpProperty* getObjectPropertyDesc(MtpObjectProperty property, 171 MtpObjectFormat format); 172 173 virtual MtpProperty* getDevicePropertyDesc(MtpDeviceProperty property); 174 175 virtual void sessionStarted(); 176 177 virtual void sessionEnded(); 178}; 179 180// ---------------------------------------------------------------------------- 181 182static void checkAndClearExceptionFromCallback(JNIEnv* env, const char* methodName) { 183 if (env->ExceptionCheck()) { 184 ALOGE("An exception was thrown by callback '%s'.", methodName); 185 LOGE_EX(env); 186 env->ExceptionClear(); 187 } 188} 189 190// ---------------------------------------------------------------------------- 191 192MyMtpDatabase::MyMtpDatabase(JNIEnv *env, jobject client) 193 : mDatabase(env->NewGlobalRef(client)), 194 mIntBuffer(NULL), 195 mLongBuffer(NULL), 196 mStringBuffer(NULL) 197{ 198 // create buffers for out arguments 199 // we don't need to be thread-safe so this is OK 200 jintArray intArray = env->NewIntArray(3); 201 if (!intArray) { 202 return; // Already threw. 203 } 204 mIntBuffer = (jintArray)env->NewGlobalRef(intArray); 205 jlongArray longArray = env->NewLongArray(2); 206 if (!longArray) { 207 return; // Already threw. 208 } 209 mLongBuffer = (jlongArray)env->NewGlobalRef(longArray); 210 // Needs to be long enough to hold a file path for getObjectFilePath() 211 jcharArray charArray = env->NewCharArray(PATH_MAX + 1); 212 if (!charArray) { 213 return; // Already threw. 214 } 215 mStringBuffer = (jcharArray)env->NewGlobalRef(charArray); 216} 217 218void MyMtpDatabase::cleanup(JNIEnv *env) { 219 env->DeleteGlobalRef(mDatabase); 220 env->DeleteGlobalRef(mIntBuffer); 221 env->DeleteGlobalRef(mLongBuffer); 222 env->DeleteGlobalRef(mStringBuffer); 223} 224 225MyMtpDatabase::~MyMtpDatabase() { 226} 227 228MtpObjectHandle MyMtpDatabase::beginSendObject(const char* path, 229 MtpObjectFormat format, 230 MtpObjectHandle parent, 231 MtpStorageID storage, 232 uint64_t size, 233 time_t modified) { 234 JNIEnv* env = AndroidRuntime::getJNIEnv(); 235 jstring pathStr = env->NewStringUTF(path); 236 MtpObjectHandle result = env->CallIntMethod(mDatabase, method_beginSendObject, 237 pathStr, (jint)format, (jint)parent, (jint)storage, 238 (jlong)size, (jlong)modified); 239 240 if (pathStr) 241 env->DeleteLocalRef(pathStr); 242 checkAndClearExceptionFromCallback(env, __FUNCTION__); 243 return result; 244} 245 246void MyMtpDatabase::endSendObject(const char* path, MtpObjectHandle handle, 247 MtpObjectFormat format, bool succeeded) { 248 JNIEnv* env = AndroidRuntime::getJNIEnv(); 249 jstring pathStr = env->NewStringUTF(path); 250 env->CallVoidMethod(mDatabase, method_endSendObject, pathStr, 251 (jint)handle, (jint)format, (jboolean)succeeded); 252 253 if (pathStr) 254 env->DeleteLocalRef(pathStr); 255 checkAndClearExceptionFromCallback(env, __FUNCTION__); 256} 257 258MtpObjectHandleList* MyMtpDatabase::getObjectList(MtpStorageID storageID, 259 MtpObjectFormat format, 260 MtpObjectHandle parent) { 261 JNIEnv* env = AndroidRuntime::getJNIEnv(); 262 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, method_getObjectList, 263 (jint)storageID, (jint)format, (jint)parent); 264 if (!array) 265 return NULL; 266 MtpObjectHandleList* list = new MtpObjectHandleList(); 267 jint* handles = env->GetIntArrayElements(array, 0); 268 jsize length = env->GetArrayLength(array); 269 for (int i = 0; i < length; i++) 270 list->push(handles[i]); 271 env->ReleaseIntArrayElements(array, handles, 0); 272 env->DeleteLocalRef(array); 273 274 checkAndClearExceptionFromCallback(env, __FUNCTION__); 275 return list; 276} 277 278int MyMtpDatabase::getNumObjects(MtpStorageID storageID, 279 MtpObjectFormat format, 280 MtpObjectHandle parent) { 281 JNIEnv* env = AndroidRuntime::getJNIEnv(); 282 int result = env->CallIntMethod(mDatabase, method_getNumObjects, 283 (jint)storageID, (jint)format, (jint)parent); 284 285 checkAndClearExceptionFromCallback(env, __FUNCTION__); 286 return result; 287} 288 289MtpObjectFormatList* MyMtpDatabase::getSupportedPlaybackFormats() { 290 JNIEnv* env = AndroidRuntime::getJNIEnv(); 291 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 292 method_getSupportedPlaybackFormats); 293 if (!array) 294 return NULL; 295 MtpObjectFormatList* list = new MtpObjectFormatList(); 296 jint* formats = env->GetIntArrayElements(array, 0); 297 jsize length = env->GetArrayLength(array); 298 for (int i = 0; i < length; i++) 299 list->push(formats[i]); 300 env->ReleaseIntArrayElements(array, formats, 0); 301 env->DeleteLocalRef(array); 302 303 checkAndClearExceptionFromCallback(env, __FUNCTION__); 304 return list; 305} 306 307MtpObjectFormatList* MyMtpDatabase::getSupportedCaptureFormats() { 308 JNIEnv* env = AndroidRuntime::getJNIEnv(); 309 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 310 method_getSupportedCaptureFormats); 311 if (!array) 312 return NULL; 313 MtpObjectFormatList* list = new MtpObjectFormatList(); 314 jint* formats = env->GetIntArrayElements(array, 0); 315 jsize length = env->GetArrayLength(array); 316 for (int i = 0; i < length; i++) 317 list->push(formats[i]); 318 env->ReleaseIntArrayElements(array, formats, 0); 319 env->DeleteLocalRef(array); 320 321 checkAndClearExceptionFromCallback(env, __FUNCTION__); 322 return list; 323} 324 325MtpObjectPropertyList* MyMtpDatabase::getSupportedObjectProperties(MtpObjectFormat format) { 326 JNIEnv* env = AndroidRuntime::getJNIEnv(); 327 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 328 method_getSupportedObjectProperties, (jint)format); 329 if (!array) 330 return NULL; 331 MtpObjectPropertyList* list = new MtpObjectPropertyList(); 332 jint* properties = env->GetIntArrayElements(array, 0); 333 jsize length = env->GetArrayLength(array); 334 for (int i = 0; i < length; i++) 335 list->push(properties[i]); 336 env->ReleaseIntArrayElements(array, properties, 0); 337 env->DeleteLocalRef(array); 338 339 checkAndClearExceptionFromCallback(env, __FUNCTION__); 340 return list; 341} 342 343MtpDevicePropertyList* MyMtpDatabase::getSupportedDeviceProperties() { 344 JNIEnv* env = AndroidRuntime::getJNIEnv(); 345 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, 346 method_getSupportedDeviceProperties); 347 if (!array) 348 return NULL; 349 MtpDevicePropertyList* list = new MtpDevicePropertyList(); 350 jint* properties = env->GetIntArrayElements(array, 0); 351 jsize length = env->GetArrayLength(array); 352 for (int i = 0; i < length; i++) 353 list->push(properties[i]); 354 env->ReleaseIntArrayElements(array, properties, 0); 355 env->DeleteLocalRef(array); 356 357 checkAndClearExceptionFromCallback(env, __FUNCTION__); 358 return list; 359} 360 361MtpResponseCode MyMtpDatabase::getObjectPropertyValue(MtpObjectHandle handle, 362 MtpObjectProperty property, 363 MtpDataPacket& packet) { 364 JNIEnv* env = AndroidRuntime::getJNIEnv(); 365 jobject list = env->CallObjectMethod(mDatabase, method_getObjectPropertyList, 366 (jlong)handle, 0, (jlong)property, 0, 0); 367 MtpResponseCode result = env->GetIntField(list, field_mResult); 368 int count = env->GetIntField(list, field_mCount); 369 if (result == MTP_RESPONSE_OK && count != 1) 370 result = MTP_RESPONSE_GENERAL_ERROR; 371 372 if (result == MTP_RESPONSE_OK) { 373 jintArray objectHandlesArray = (jintArray)env->GetObjectField(list, field_mObjectHandles); 374 jintArray propertyCodesArray = (jintArray)env->GetObjectField(list, field_mPropertyCodes); 375 jintArray dataTypesArray = (jintArray)env->GetObjectField(list, field_mDataTypes); 376 jlongArray longValuesArray = (jlongArray)env->GetObjectField(list, field_mLongValues); 377 jobjectArray stringValuesArray = (jobjectArray)env->GetObjectField(list, field_mStringValues); 378 379 jint* objectHandles = env->GetIntArrayElements(objectHandlesArray, 0); 380 jint* propertyCodes = env->GetIntArrayElements(propertyCodesArray, 0); 381 jint* dataTypes = env->GetIntArrayElements(dataTypesArray, 0); 382 jlong* longValues = (longValuesArray ? env->GetLongArrayElements(longValuesArray, 0) : NULL); 383 384 int type = dataTypes[0]; 385 jlong longValue = (longValues ? longValues[0] : 0); 386 387 // special case date properties, which are strings to MTP 388 // but stored internally as a uint64 389 if (property == MTP_PROPERTY_DATE_MODIFIED || property == MTP_PROPERTY_DATE_ADDED) { 390 char date[20]; 391 formatDateTime(longValue, date, sizeof(date)); 392 packet.putString(date); 393 goto out; 394 } 395 // release date is stored internally as just the year 396 if (property == MTP_PROPERTY_ORIGINAL_RELEASE_DATE) { 397 char date[20]; 398 snprintf(date, sizeof(date), "%04" PRId64 "0101T000000", longValue); 399 packet.putString(date); 400 goto out; 401 } 402 403 switch (type) { 404 case MTP_TYPE_INT8: 405 packet.putInt8(longValue); 406 break; 407 case MTP_TYPE_UINT8: 408 packet.putUInt8(longValue); 409 break; 410 case MTP_TYPE_INT16: 411 packet.putInt16(longValue); 412 break; 413 case MTP_TYPE_UINT16: 414 packet.putUInt16(longValue); 415 break; 416 case MTP_TYPE_INT32: 417 packet.putInt32(longValue); 418 break; 419 case MTP_TYPE_UINT32: 420 packet.putUInt32(longValue); 421 break; 422 case MTP_TYPE_INT64: 423 packet.putInt64(longValue); 424 break; 425 case MTP_TYPE_UINT64: 426 packet.putUInt64(longValue); 427 break; 428 case MTP_TYPE_INT128: 429 packet.putInt128(longValue); 430 break; 431 case MTP_TYPE_UINT128: 432 packet.putInt128(longValue); 433 break; 434 case MTP_TYPE_STR: 435 { 436 jstring stringValue = (jstring)env->GetObjectArrayElement(stringValuesArray, 0); 437 const char* str = (stringValue ? env->GetStringUTFChars(stringValue, NULL) : NULL); 438 if (stringValue) { 439 packet.putString(str); 440 env->ReleaseStringUTFChars(stringValue, str); 441 } else { 442 packet.putEmptyString(); 443 } 444 env->DeleteLocalRef(stringValue); 445 break; 446 } 447 default: 448 ALOGE("unsupported type in getObjectPropertyValue\n"); 449 result = MTP_RESPONSE_INVALID_OBJECT_PROP_FORMAT; 450 } 451out: 452 env->ReleaseIntArrayElements(objectHandlesArray, objectHandles, 0); 453 env->ReleaseIntArrayElements(propertyCodesArray, propertyCodes, 0); 454 env->ReleaseIntArrayElements(dataTypesArray, dataTypes, 0); 455 if (longValues) 456 env->ReleaseLongArrayElements(longValuesArray, longValues, 0); 457 458 env->DeleteLocalRef(objectHandlesArray); 459 env->DeleteLocalRef(propertyCodesArray); 460 env->DeleteLocalRef(dataTypesArray); 461 if (longValuesArray) 462 env->DeleteLocalRef(longValuesArray); 463 if (stringValuesArray) 464 env->DeleteLocalRef(stringValuesArray); 465 } 466 467 env->DeleteLocalRef(list); 468 checkAndClearExceptionFromCallback(env, __FUNCTION__); 469 return result; 470} 471 472static bool readLongValue(int type, MtpDataPacket& packet, jlong& longValue) { 473 switch (type) { 474 case MTP_TYPE_INT8: { 475 int8_t temp; 476 if (!packet.getInt8(temp)) return false; 477 longValue = temp; 478 break; 479 } 480 case MTP_TYPE_UINT8: { 481 uint8_t temp; 482 if (!packet.getUInt8(temp)) return false; 483 longValue = temp; 484 break; 485 } 486 case MTP_TYPE_INT16: { 487 int16_t temp; 488 if (!packet.getInt16(temp)) return false; 489 longValue = temp; 490 break; 491 } 492 case MTP_TYPE_UINT16: { 493 uint16_t temp; 494 if (!packet.getUInt16(temp)) return false; 495 longValue = temp; 496 break; 497 } 498 case MTP_TYPE_INT32: { 499 int32_t temp; 500 if (!packet.getInt32(temp)) return false; 501 longValue = temp; 502 break; 503 } 504 case MTP_TYPE_UINT32: { 505 uint32_t temp; 506 if (!packet.getUInt32(temp)) return false; 507 longValue = temp; 508 break; 509 } 510 case MTP_TYPE_INT64: { 511 int64_t temp; 512 if (!packet.getInt64(temp)) return false; 513 longValue = temp; 514 break; 515 } 516 case MTP_TYPE_UINT64: { 517 uint64_t temp; 518 if (!packet.getUInt64(temp)) return false; 519 longValue = temp; 520 break; 521 } 522 default: 523 ALOGE("unsupported type in readLongValue"); 524 return false; 525 } 526 return true; 527} 528 529MtpResponseCode MyMtpDatabase::setObjectPropertyValue(MtpObjectHandle handle, 530 MtpObjectProperty property, 531 MtpDataPacket& packet) { 532 int type; 533 534 if (!getObjectPropertyInfo(property, type)) 535 return MTP_RESPONSE_OBJECT_PROP_NOT_SUPPORTED; 536 537 JNIEnv* env = AndroidRuntime::getJNIEnv(); 538 jlong longValue = 0; 539 jstring stringValue = NULL; 540 MtpResponseCode result = MTP_RESPONSE_INVALID_OBJECT_PROP_FORMAT; 541 542 if (type == MTP_TYPE_STR) { 543 MtpStringBuffer buffer; 544 if (!packet.getString(buffer)) goto fail; 545 stringValue = env->NewStringUTF((const char *)buffer); 546 } else { 547 if (!readLongValue(type, packet, longValue)) goto fail; 548 } 549 550 result = env->CallIntMethod(mDatabase, method_setObjectProperty, 551 (jint)handle, (jint)property, longValue, stringValue); 552 if (stringValue) 553 env->DeleteLocalRef(stringValue); 554 555fail: 556 checkAndClearExceptionFromCallback(env, __FUNCTION__); 557 return result; 558} 559 560MtpResponseCode MyMtpDatabase::getDevicePropertyValue(MtpDeviceProperty property, 561 MtpDataPacket& packet) { 562 JNIEnv* env = AndroidRuntime::getJNIEnv(); 563 564 if (property == MTP_DEVICE_PROPERTY_BATTERY_LEVEL) { 565 // special case - implemented here instead of Java 566 packet.putUInt8((uint8_t)env->GetIntField(mDatabase, field_batteryLevel)); 567 return MTP_RESPONSE_OK; 568 } else { 569 int type; 570 571 if (!getDevicePropertyInfo(property, type)) 572 return MTP_RESPONSE_DEVICE_PROP_NOT_SUPPORTED; 573 574 jint result = env->CallIntMethod(mDatabase, method_getDeviceProperty, 575 (jint)property, mLongBuffer, mStringBuffer); 576 if (result != MTP_RESPONSE_OK) { 577 checkAndClearExceptionFromCallback(env, __FUNCTION__); 578 return result; 579 } 580 581 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 582 jlong longValue = longValues[0]; 583 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 584 585 switch (type) { 586 case MTP_TYPE_INT8: 587 packet.putInt8(longValue); 588 break; 589 case MTP_TYPE_UINT8: 590 packet.putUInt8(longValue); 591 break; 592 case MTP_TYPE_INT16: 593 packet.putInt16(longValue); 594 break; 595 case MTP_TYPE_UINT16: 596 packet.putUInt16(longValue); 597 break; 598 case MTP_TYPE_INT32: 599 packet.putInt32(longValue); 600 break; 601 case MTP_TYPE_UINT32: 602 packet.putUInt32(longValue); 603 break; 604 case MTP_TYPE_INT64: 605 packet.putInt64(longValue); 606 break; 607 case MTP_TYPE_UINT64: 608 packet.putUInt64(longValue); 609 break; 610 case MTP_TYPE_INT128: 611 packet.putInt128(longValue); 612 break; 613 case MTP_TYPE_UINT128: 614 packet.putInt128(longValue); 615 break; 616 case MTP_TYPE_STR: 617 { 618 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 619 packet.putString(str); 620 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 621 break; 622 } 623 default: 624 ALOGE("unsupported type in getDevicePropertyValue\n"); 625 return MTP_RESPONSE_INVALID_DEVICE_PROP_FORMAT; 626 } 627 628 checkAndClearExceptionFromCallback(env, __FUNCTION__); 629 return MTP_RESPONSE_OK; 630 } 631} 632 633MtpResponseCode MyMtpDatabase::setDevicePropertyValue(MtpDeviceProperty property, 634 MtpDataPacket& packet) { 635 int type; 636 637 if (!getDevicePropertyInfo(property, type)) 638 return MTP_RESPONSE_DEVICE_PROP_NOT_SUPPORTED; 639 640 JNIEnv* env = AndroidRuntime::getJNIEnv(); 641 jlong longValue = 0; 642 jstring stringValue = NULL; 643 MtpResponseCode result = MTP_RESPONSE_INVALID_DEVICE_PROP_FORMAT; 644 645 if (type == MTP_TYPE_STR) { 646 MtpStringBuffer buffer; 647 if (!packet.getString(buffer)) goto fail; 648 stringValue = env->NewStringUTF((const char *)buffer); 649 } else { 650 if (!readLongValue(type, packet, longValue)) goto fail; 651 } 652 653 result = env->CallIntMethod(mDatabase, method_setDeviceProperty, 654 (jint)property, longValue, stringValue); 655 if (stringValue) 656 env->DeleteLocalRef(stringValue); 657 658fail: 659 checkAndClearExceptionFromCallback(env, __FUNCTION__); 660 return result; 661} 662 663MtpResponseCode MyMtpDatabase::resetDeviceProperty(MtpDeviceProperty /*property*/) { 664 return -1; 665} 666 667MtpResponseCode MyMtpDatabase::getObjectPropertyList(MtpObjectHandle handle, 668 uint32_t format, uint32_t property, 669 int groupCode, int depth, 670 MtpDataPacket& packet) { 671 JNIEnv* env = AndroidRuntime::getJNIEnv(); 672 jobject list = env->CallObjectMethod(mDatabase, method_getObjectPropertyList, 673 (jlong)handle, (jint)format, (jlong)property, (jint)groupCode, (jint)depth); 674 checkAndClearExceptionFromCallback(env, __FUNCTION__); 675 if (!list) 676 return MTP_RESPONSE_GENERAL_ERROR; 677 int count = env->GetIntField(list, field_mCount); 678 MtpResponseCode result = env->GetIntField(list, field_mResult); 679 680 packet.putUInt32(count); 681 if (count > 0) { 682 jintArray objectHandlesArray = (jintArray)env->GetObjectField(list, field_mObjectHandles); 683 jintArray propertyCodesArray = (jintArray)env->GetObjectField(list, field_mPropertyCodes); 684 jintArray dataTypesArray = (jintArray)env->GetObjectField(list, field_mDataTypes); 685 jlongArray longValuesArray = (jlongArray)env->GetObjectField(list, field_mLongValues); 686 jobjectArray stringValuesArray = (jobjectArray)env->GetObjectField(list, field_mStringValues); 687 688 jint* objectHandles = env->GetIntArrayElements(objectHandlesArray, 0); 689 jint* propertyCodes = env->GetIntArrayElements(propertyCodesArray, 0); 690 jint* dataTypes = env->GetIntArrayElements(dataTypesArray, 0); 691 jlong* longValues = (longValuesArray ? env->GetLongArrayElements(longValuesArray, 0) : NULL); 692 693 for (int i = 0; i < count; i++) { 694 packet.putUInt32(objectHandles[i]); 695 packet.putUInt16(propertyCodes[i]); 696 int type = dataTypes[i]; 697 packet.putUInt16(type); 698 699 switch (type) { 700 case MTP_TYPE_INT8: 701 packet.putInt8(longValues[i]); 702 break; 703 case MTP_TYPE_UINT8: 704 packet.putUInt8(longValues[i]); 705 break; 706 case MTP_TYPE_INT16: 707 packet.putInt16(longValues[i]); 708 break; 709 case MTP_TYPE_UINT16: 710 packet.putUInt16(longValues[i]); 711 break; 712 case MTP_TYPE_INT32: 713 packet.putInt32(longValues[i]); 714 break; 715 case MTP_TYPE_UINT32: 716 packet.putUInt32(longValues[i]); 717 break; 718 case MTP_TYPE_INT64: 719 packet.putInt64(longValues[i]); 720 break; 721 case MTP_TYPE_UINT64: 722 packet.putUInt64(longValues[i]); 723 break; 724 case MTP_TYPE_INT128: 725 packet.putInt128(longValues[i]); 726 break; 727 case MTP_TYPE_UINT128: 728 packet.putUInt128(longValues[i]); 729 break; 730 case MTP_TYPE_STR: { 731 jstring value = (jstring)env->GetObjectArrayElement(stringValuesArray, i); 732 const char *valueStr = (value ? env->GetStringUTFChars(value, NULL) : NULL); 733 if (valueStr) { 734 packet.putString(valueStr); 735 env->ReleaseStringUTFChars(value, valueStr); 736 } else { 737 packet.putEmptyString(); 738 } 739 env->DeleteLocalRef(value); 740 break; 741 } 742 default: 743 ALOGE("bad or unsupported data type in MyMtpDatabase::getObjectPropertyList"); 744 break; 745 } 746 } 747 748 env->ReleaseIntArrayElements(objectHandlesArray, objectHandles, 0); 749 env->ReleaseIntArrayElements(propertyCodesArray, propertyCodes, 0); 750 env->ReleaseIntArrayElements(dataTypesArray, dataTypes, 0); 751 if (longValues) 752 env->ReleaseLongArrayElements(longValuesArray, longValues, 0); 753 754 env->DeleteLocalRef(objectHandlesArray); 755 env->DeleteLocalRef(propertyCodesArray); 756 env->DeleteLocalRef(dataTypesArray); 757 if (longValuesArray) 758 env->DeleteLocalRef(longValuesArray); 759 if (stringValuesArray) 760 env->DeleteLocalRef(stringValuesArray); 761 } 762 763 env->DeleteLocalRef(list); 764 checkAndClearExceptionFromCallback(env, __FUNCTION__); 765 return result; 766} 767 768static void foreachentry(ExifEntry *entry, void* /* user */) { 769 char buf[1024]; 770 ALOGI("entry %x, format %d, size %d: %s", 771 entry->tag, entry->format, entry->size, exif_entry_get_value(entry, buf, sizeof(buf))); 772} 773 774static void foreachcontent(ExifContent *content, void *user) { 775 ALOGI("content %d", exif_content_get_ifd(content)); 776 exif_content_foreach_entry(content, foreachentry, user); 777} 778 779static long getLongFromExifEntry(ExifEntry *e) { 780 ExifByteOrder o = exif_data_get_byte_order(e->parent->parent); 781 return exif_get_long(e->data, o); 782} 783 784MtpResponseCode MyMtpDatabase::getObjectInfo(MtpObjectHandle handle, 785 MtpObjectInfo& info) { 786 MtpString path; 787 int64_t length; 788 MtpObjectFormat format; 789 790 MtpResponseCode result = getObjectFilePath(handle, path, length, format); 791 if (result != MTP_RESPONSE_OK) { 792 return result; 793 } 794 info.mCompressedSize = (length > 0xFFFFFFFFLL ? 0xFFFFFFFF : (uint32_t)length); 795 796 JNIEnv* env = AndroidRuntime::getJNIEnv(); 797 if (!env->CallBooleanMethod(mDatabase, method_getObjectInfo, 798 (jint)handle, mIntBuffer, mStringBuffer, mLongBuffer)) { 799 return MTP_RESPONSE_INVALID_OBJECT_HANDLE; 800 } 801 802 jint* intValues = env->GetIntArrayElements(mIntBuffer, 0); 803 info.mStorageID = intValues[0]; 804 info.mFormat = intValues[1]; 805 info.mParent = intValues[2]; 806 env->ReleaseIntArrayElements(mIntBuffer, intValues, 0); 807 808 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 809 info.mDateCreated = longValues[0]; 810 info.mDateModified = longValues[1]; 811 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 812 813 if ((false)) { 814 info.mAssociationType = (format == MTP_FORMAT_ASSOCIATION ? 815 MTP_ASSOCIATION_TYPE_GENERIC_FOLDER : 816 MTP_ASSOCIATION_TYPE_UNDEFINED); 817 } 818 info.mAssociationType = MTP_ASSOCIATION_TYPE_UNDEFINED; 819 820 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 821 MtpString temp(reinterpret_cast<char16_t*>(str)); 822 info.mName = strdup((const char *)temp); 823 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 824 825 // read EXIF data for thumbnail information 826 if (info.mFormat == MTP_FORMAT_EXIF_JPEG || info.mFormat == MTP_FORMAT_JFIF) { 827 828 ExifData *exifdata = exif_data_new_from_file(path); 829 if (exifdata) { 830 if ((false)) { 831 exif_data_foreach_content(exifdata, foreachcontent, NULL); 832 } 833 834 // XXX get this from exif, or parse jpeg header instead? 835 ExifEntry *w = exif_content_get_entry( 836 exifdata->ifd[EXIF_IFD_EXIF], EXIF_TAG_PIXEL_X_DIMENSION); 837 ExifEntry *h = exif_content_get_entry( 838 exifdata->ifd[EXIF_IFD_EXIF], EXIF_TAG_PIXEL_Y_DIMENSION); 839 info.mThumbCompressedSize = exifdata->data ? exifdata->size : 0; 840 info.mThumbFormat = MTP_FORMAT_EXIF_JPEG; 841 info.mImagePixWidth = w ? getLongFromExifEntry(w) : 0; 842 info.mImagePixHeight = h ? getLongFromExifEntry(h) : 0; 843 exif_data_unref(exifdata); 844 } 845 } 846 847 checkAndClearExceptionFromCallback(env, __FUNCTION__); 848 return MTP_RESPONSE_OK; 849} 850 851void* MyMtpDatabase::getThumbnail(MtpObjectHandle handle, size_t& outThumbSize) { 852 MtpString path; 853 int64_t length; 854 MtpObjectFormat format; 855 void* result = NULL; 856 outThumbSize = 0; 857 858 if (getObjectFilePath(handle, path, length, format) == MTP_RESPONSE_OK 859 && (format == MTP_FORMAT_EXIF_JPEG || format == MTP_FORMAT_JFIF)) { 860 861 ExifData *exifdata = exif_data_new_from_file(path); 862 if (exifdata) { 863 if (exifdata->data) { 864 result = malloc(exifdata->size); 865 if (result) { 866 memcpy(result, exifdata->data, exifdata->size); 867 outThumbSize = exifdata->size; 868 } 869 } 870 exif_data_unref(exifdata); 871 } 872 } 873 874 return result; 875} 876 877MtpResponseCode MyMtpDatabase::getObjectFilePath(MtpObjectHandle handle, 878 MtpString& outFilePath, 879 int64_t& outFileLength, 880 MtpObjectFormat& outFormat) { 881 JNIEnv* env = AndroidRuntime::getJNIEnv(); 882 jint result = env->CallIntMethod(mDatabase, method_getObjectFilePath, 883 (jint)handle, mStringBuffer, mLongBuffer); 884 if (result != MTP_RESPONSE_OK) { 885 checkAndClearExceptionFromCallback(env, __FUNCTION__); 886 return result; 887 } 888 889 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 890 outFilePath.setTo(reinterpret_cast<char16_t*>(str), 891 strlen16(reinterpret_cast<char16_t*>(str))); 892 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 893 894 jlong* longValues = env->GetLongArrayElements(mLongBuffer, 0); 895 outFileLength = longValues[0]; 896 outFormat = longValues[1]; 897 env->ReleaseLongArrayElements(mLongBuffer, longValues, 0); 898 899 checkAndClearExceptionFromCallback(env, __FUNCTION__); 900 return result; 901} 902 903MtpResponseCode MyMtpDatabase::deleteFile(MtpObjectHandle handle) { 904 JNIEnv* env = AndroidRuntime::getJNIEnv(); 905 MtpResponseCode result = env->CallIntMethod(mDatabase, method_deleteFile, (jint)handle); 906 907 checkAndClearExceptionFromCallback(env, __FUNCTION__); 908 return result; 909} 910 911struct PropertyTableEntry { 912 MtpObjectProperty property; 913 int type; 914}; 915 916static const PropertyTableEntry kObjectPropertyTable[] = { 917 { MTP_PROPERTY_STORAGE_ID, MTP_TYPE_UINT32 }, 918 { MTP_PROPERTY_OBJECT_FORMAT, MTP_TYPE_UINT16 }, 919 { MTP_PROPERTY_PROTECTION_STATUS, MTP_TYPE_UINT16 }, 920 { MTP_PROPERTY_OBJECT_SIZE, MTP_TYPE_UINT64 }, 921 { MTP_PROPERTY_OBJECT_FILE_NAME, MTP_TYPE_STR }, 922 { MTP_PROPERTY_DATE_MODIFIED, MTP_TYPE_STR }, 923 { MTP_PROPERTY_PARENT_OBJECT, MTP_TYPE_UINT32 }, 924 { MTP_PROPERTY_PERSISTENT_UID, MTP_TYPE_UINT128 }, 925 { MTP_PROPERTY_NAME, MTP_TYPE_STR }, 926 { MTP_PROPERTY_DISPLAY_NAME, MTP_TYPE_STR }, 927 { MTP_PROPERTY_DATE_ADDED, MTP_TYPE_STR }, 928 { MTP_PROPERTY_ARTIST, MTP_TYPE_STR }, 929 { MTP_PROPERTY_ALBUM_NAME, MTP_TYPE_STR }, 930 { MTP_PROPERTY_ALBUM_ARTIST, MTP_TYPE_STR }, 931 { MTP_PROPERTY_TRACK, MTP_TYPE_UINT16 }, 932 { MTP_PROPERTY_ORIGINAL_RELEASE_DATE, MTP_TYPE_STR }, 933 { MTP_PROPERTY_GENRE, MTP_TYPE_STR }, 934 { MTP_PROPERTY_COMPOSER, MTP_TYPE_STR }, 935 { MTP_PROPERTY_DURATION, MTP_TYPE_UINT32 }, 936 { MTP_PROPERTY_DESCRIPTION, MTP_TYPE_STR }, 937 { MTP_PROPERTY_AUDIO_WAVE_CODEC, MTP_TYPE_UINT32 }, 938 { MTP_PROPERTY_BITRATE_TYPE, MTP_TYPE_UINT16 }, 939 { MTP_PROPERTY_AUDIO_BITRATE, MTP_TYPE_UINT32 }, 940 { MTP_PROPERTY_NUMBER_OF_CHANNELS,MTP_TYPE_UINT16 }, 941 { MTP_PROPERTY_SAMPLE_RATE, MTP_TYPE_UINT32 }, 942}; 943 944static const PropertyTableEntry kDevicePropertyTable[] = { 945 { MTP_DEVICE_PROPERTY_SYNCHRONIZATION_PARTNER, MTP_TYPE_STR }, 946 { MTP_DEVICE_PROPERTY_DEVICE_FRIENDLY_NAME, MTP_TYPE_STR }, 947 { MTP_DEVICE_PROPERTY_IMAGE_SIZE, MTP_TYPE_STR }, 948 { MTP_DEVICE_PROPERTY_BATTERY_LEVEL, MTP_TYPE_UINT8 }, 949}; 950 951bool MyMtpDatabase::getObjectPropertyInfo(MtpObjectProperty property, int& type) { 952 int count = sizeof(kObjectPropertyTable) / sizeof(kObjectPropertyTable[0]); 953 const PropertyTableEntry* entry = kObjectPropertyTable; 954 for (int i = 0; i < count; i++, entry++) { 955 if (entry->property == property) { 956 type = entry->type; 957 return true; 958 } 959 } 960 return false; 961} 962 963bool MyMtpDatabase::getDevicePropertyInfo(MtpDeviceProperty property, int& type) { 964 int count = sizeof(kDevicePropertyTable) / sizeof(kDevicePropertyTable[0]); 965 const PropertyTableEntry* entry = kDevicePropertyTable; 966 for (int i = 0; i < count; i++, entry++) { 967 if (entry->property == property) { 968 type = entry->type; 969 return true; 970 } 971 } 972 return false; 973} 974 975MtpObjectHandleList* MyMtpDatabase::getObjectReferences(MtpObjectHandle handle) { 976 JNIEnv* env = AndroidRuntime::getJNIEnv(); 977 jintArray array = (jintArray)env->CallObjectMethod(mDatabase, method_getObjectReferences, 978 (jint)handle); 979 if (!array) 980 return NULL; 981 MtpObjectHandleList* list = new MtpObjectHandleList(); 982 jint* handles = env->GetIntArrayElements(array, 0); 983 jsize length = env->GetArrayLength(array); 984 for (int i = 0; i < length; i++) 985 list->push(handles[i]); 986 env->ReleaseIntArrayElements(array, handles, 0); 987 env->DeleteLocalRef(array); 988 989 checkAndClearExceptionFromCallback(env, __FUNCTION__); 990 return list; 991} 992 993MtpResponseCode MyMtpDatabase::setObjectReferences(MtpObjectHandle handle, 994 MtpObjectHandleList* references) { 995 JNIEnv* env = AndroidRuntime::getJNIEnv(); 996 int count = references->size(); 997 jintArray array = env->NewIntArray(count); 998 if (!array) { 999 ALOGE("out of memory in setObjectReferences"); 1000 return false; 1001 } 1002 jint* handles = env->GetIntArrayElements(array, 0); 1003 for (int i = 0; i < count; i++) 1004 handles[i] = (*references)[i]; 1005 env->ReleaseIntArrayElements(array, handles, 0); 1006 MtpResponseCode result = env->CallIntMethod(mDatabase, method_setObjectReferences, 1007 (jint)handle, array); 1008 env->DeleteLocalRef(array); 1009 1010 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1011 return result; 1012} 1013 1014MtpProperty* MyMtpDatabase::getObjectPropertyDesc(MtpObjectProperty property, 1015 MtpObjectFormat format) { 1016 static const int channelEnum[] = { 1017 1, // mono 1018 2, // stereo 1019 3, // 2.1 1020 4, // 3 1021 5, // 3.1 1022 6, // 4 1023 7, // 4.1 1024 8, // 5 1025 9, // 5.1 1026 }; 1027 static const int bitrateEnum[] = { 1028 1, // fixed rate 1029 2, // variable rate 1030 }; 1031 1032 MtpProperty* result = NULL; 1033 switch (property) { 1034 case MTP_PROPERTY_OBJECT_FORMAT: 1035 // use format as default value 1036 result = new MtpProperty(property, MTP_TYPE_UINT16, false, format); 1037 break; 1038 case MTP_PROPERTY_PROTECTION_STATUS: 1039 case MTP_PROPERTY_TRACK: 1040 result = new MtpProperty(property, MTP_TYPE_UINT16); 1041 break; 1042 case MTP_PROPERTY_STORAGE_ID: 1043 case MTP_PROPERTY_PARENT_OBJECT: 1044 case MTP_PROPERTY_DURATION: 1045 case MTP_PROPERTY_AUDIO_WAVE_CODEC: 1046 result = new MtpProperty(property, MTP_TYPE_UINT32); 1047 break; 1048 case MTP_PROPERTY_OBJECT_SIZE: 1049 result = new MtpProperty(property, MTP_TYPE_UINT64); 1050 break; 1051 case MTP_PROPERTY_PERSISTENT_UID: 1052 result = new MtpProperty(property, MTP_TYPE_UINT128); 1053 break; 1054 case MTP_PROPERTY_NAME: 1055 case MTP_PROPERTY_DISPLAY_NAME: 1056 case MTP_PROPERTY_ARTIST: 1057 case MTP_PROPERTY_ALBUM_NAME: 1058 case MTP_PROPERTY_ALBUM_ARTIST: 1059 case MTP_PROPERTY_GENRE: 1060 case MTP_PROPERTY_COMPOSER: 1061 case MTP_PROPERTY_DESCRIPTION: 1062 result = new MtpProperty(property, MTP_TYPE_STR); 1063 break; 1064 case MTP_PROPERTY_DATE_MODIFIED: 1065 case MTP_PROPERTY_DATE_ADDED: 1066 case MTP_PROPERTY_ORIGINAL_RELEASE_DATE: 1067 result = new MtpProperty(property, MTP_TYPE_STR); 1068 result->setFormDateTime(); 1069 break; 1070 case MTP_PROPERTY_OBJECT_FILE_NAME: 1071 // We allow renaming files and folders 1072 result = new MtpProperty(property, MTP_TYPE_STR, true); 1073 break; 1074 case MTP_PROPERTY_BITRATE_TYPE: 1075 result = new MtpProperty(property, MTP_TYPE_UINT16); 1076 result->setFormEnum(bitrateEnum, sizeof(bitrateEnum)/sizeof(bitrateEnum[0])); 1077 break; 1078 case MTP_PROPERTY_AUDIO_BITRATE: 1079 result = new MtpProperty(property, MTP_TYPE_UINT32); 1080 result->setFormRange(1, 1536000, 1); 1081 break; 1082 case MTP_PROPERTY_NUMBER_OF_CHANNELS: 1083 result = new MtpProperty(property, MTP_TYPE_UINT16); 1084 result->setFormEnum(channelEnum, sizeof(channelEnum)/sizeof(channelEnum[0])); 1085 break; 1086 case MTP_PROPERTY_SAMPLE_RATE: 1087 result = new MtpProperty(property, MTP_TYPE_UINT32); 1088 result->setFormRange(8000, 48000, 1); 1089 break; 1090 } 1091 1092 return result; 1093} 1094 1095MtpProperty* MyMtpDatabase::getDevicePropertyDesc(MtpDeviceProperty property) { 1096 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1097 MtpProperty* result = NULL; 1098 bool writable = false; 1099 1100 switch (property) { 1101 case MTP_DEVICE_PROPERTY_SYNCHRONIZATION_PARTNER: 1102 case MTP_DEVICE_PROPERTY_DEVICE_FRIENDLY_NAME: 1103 writable = true; 1104 // fall through 1105 case MTP_DEVICE_PROPERTY_IMAGE_SIZE: { 1106 result = new MtpProperty(property, MTP_TYPE_STR, writable); 1107 1108 // get current value 1109 jint ret = env->CallIntMethod(mDatabase, method_getDeviceProperty, 1110 (jint)property, mLongBuffer, mStringBuffer); 1111 if (ret == MTP_RESPONSE_OK) { 1112 jchar* str = env->GetCharArrayElements(mStringBuffer, 0); 1113 result->setCurrentValue(str); 1114 // for read-only properties it is safe to assume current value is default value 1115 if (!writable) 1116 result->setDefaultValue(str); 1117 env->ReleaseCharArrayElements(mStringBuffer, str, 0); 1118 } else { 1119 ALOGE("unable to read device property, response: %04X", ret); 1120 } 1121 break; 1122 } 1123 case MTP_DEVICE_PROPERTY_BATTERY_LEVEL: 1124 result = new MtpProperty(property, MTP_TYPE_UINT8); 1125 result->setFormRange(0, env->GetIntField(mDatabase, field_batteryScale), 1); 1126 result->mCurrentValue.u.u8 = (uint8_t)env->GetIntField(mDatabase, field_batteryLevel); 1127 break; 1128 } 1129 1130 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1131 return result; 1132} 1133 1134void MyMtpDatabase::sessionStarted() { 1135 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1136 env->CallVoidMethod(mDatabase, method_sessionStarted); 1137 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1138} 1139 1140void MyMtpDatabase::sessionEnded() { 1141 JNIEnv* env = AndroidRuntime::getJNIEnv(); 1142 env->CallVoidMethod(mDatabase, method_sessionEnded); 1143 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1144} 1145 1146// ---------------------------------------------------------------------------- 1147 1148static void 1149android_mtp_MtpDatabase_setup(JNIEnv *env, jobject thiz) 1150{ 1151 MyMtpDatabase* database = new MyMtpDatabase(env, thiz); 1152 env->SetLongField(thiz, field_context, (jlong)database); 1153 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1154} 1155 1156static void 1157android_mtp_MtpDatabase_finalize(JNIEnv *env, jobject thiz) 1158{ 1159 MyMtpDatabase* database = (MyMtpDatabase *)env->GetLongField(thiz, field_context); 1160 database->cleanup(env); 1161 delete database; 1162 env->SetLongField(thiz, field_context, 0); 1163 checkAndClearExceptionFromCallback(env, __FUNCTION__); 1164} 1165 1166static jstring 1167android_mtp_MtpPropertyGroup_format_date_time(JNIEnv *env, jobject /*thiz*/, jlong seconds) 1168{ 1169 char date[20]; 1170 formatDateTime(seconds, date, sizeof(date)); 1171 return env->NewStringUTF(date); 1172} 1173 1174// ---------------------------------------------------------------------------- 1175 1176static JNINativeMethod gMtpDatabaseMethods[] = { 1177 {"native_setup", "()V", (void *)android_mtp_MtpDatabase_setup}, 1178 {"native_finalize", "()V", (void *)android_mtp_MtpDatabase_finalize}, 1179}; 1180 1181static JNINativeMethod gMtpPropertyGroupMethods[] = { 1182 {"format_date_time", "(J)Ljava/lang/String;", 1183 (void *)android_mtp_MtpPropertyGroup_format_date_time}, 1184}; 1185 1186int register_android_mtp_MtpDatabase(JNIEnv *env) 1187{ 1188 jclass clazz; 1189 1190 clazz = env->FindClass("android/mtp/MtpDatabase"); 1191 if (clazz == NULL) { 1192 ALOGE("Can't find android/mtp/MtpDatabase"); 1193 return -1; 1194 } 1195 method_beginSendObject = env->GetMethodID(clazz, "beginSendObject", "(Ljava/lang/String;IIIJJ)I"); 1196 if (method_beginSendObject == NULL) { 1197 ALOGE("Can't find beginSendObject"); 1198 return -1; 1199 } 1200 method_endSendObject = env->GetMethodID(clazz, "endSendObject", "(Ljava/lang/String;IIZ)V"); 1201 if (method_endSendObject == NULL) { 1202 ALOGE("Can't find endSendObject"); 1203 return -1; 1204 } 1205 method_getObjectList = env->GetMethodID(clazz, "getObjectList", "(III)[I"); 1206 if (method_getObjectList == NULL) { 1207 ALOGE("Can't find getObjectList"); 1208 return -1; 1209 } 1210 method_getNumObjects = env->GetMethodID(clazz, "getNumObjects", "(III)I"); 1211 if (method_getNumObjects == NULL) { 1212 ALOGE("Can't find getNumObjects"); 1213 return -1; 1214 } 1215 method_getSupportedPlaybackFormats = env->GetMethodID(clazz, "getSupportedPlaybackFormats", "()[I"); 1216 if (method_getSupportedPlaybackFormats == NULL) { 1217 ALOGE("Can't find getSupportedPlaybackFormats"); 1218 return -1; 1219 } 1220 method_getSupportedCaptureFormats = env->GetMethodID(clazz, "getSupportedCaptureFormats", "()[I"); 1221 if (method_getSupportedCaptureFormats == NULL) { 1222 ALOGE("Can't find getSupportedCaptureFormats"); 1223 return -1; 1224 } 1225 method_getSupportedObjectProperties = env->GetMethodID(clazz, "getSupportedObjectProperties", "(I)[I"); 1226 if (method_getSupportedObjectProperties == NULL) { 1227 ALOGE("Can't find getSupportedObjectProperties"); 1228 return -1; 1229 } 1230 method_getSupportedDeviceProperties = env->GetMethodID(clazz, "getSupportedDeviceProperties", "()[I"); 1231 if (method_getSupportedDeviceProperties == NULL) { 1232 ALOGE("Can't find getSupportedDeviceProperties"); 1233 return -1; 1234 } 1235 method_setObjectProperty = env->GetMethodID(clazz, "setObjectProperty", "(IIJLjava/lang/String;)I"); 1236 if (method_setObjectProperty == NULL) { 1237 ALOGE("Can't find setObjectProperty"); 1238 return -1; 1239 } 1240 method_getDeviceProperty = env->GetMethodID(clazz, "getDeviceProperty", "(I[J[C)I"); 1241 if (method_getDeviceProperty == NULL) { 1242 ALOGE("Can't find getDeviceProperty"); 1243 return -1; 1244 } 1245 method_setDeviceProperty = env->GetMethodID(clazz, "setDeviceProperty", "(IJLjava/lang/String;)I"); 1246 if (method_setDeviceProperty == NULL) { 1247 ALOGE("Can't find setDeviceProperty"); 1248 return -1; 1249 } 1250 method_getObjectPropertyList = env->GetMethodID(clazz, "getObjectPropertyList", 1251 "(JIJII)Landroid/mtp/MtpPropertyList;"); 1252 if (method_getObjectPropertyList == NULL) { 1253 ALOGE("Can't find getObjectPropertyList"); 1254 return -1; 1255 } 1256 method_getObjectInfo = env->GetMethodID(clazz, "getObjectInfo", "(I[I[C[J)Z"); 1257 if (method_getObjectInfo == NULL) { 1258 ALOGE("Can't find getObjectInfo"); 1259 return -1; 1260 } 1261 method_getObjectFilePath = env->GetMethodID(clazz, "getObjectFilePath", "(I[C[J)I"); 1262 if (method_getObjectFilePath == NULL) { 1263 ALOGE("Can't find getObjectFilePath"); 1264 return -1; 1265 } 1266 method_deleteFile = env->GetMethodID(clazz, "deleteFile", "(I)I"); 1267 if (method_deleteFile == NULL) { 1268 ALOGE("Can't find deleteFile"); 1269 return -1; 1270 } 1271 method_getObjectReferences = env->GetMethodID(clazz, "getObjectReferences", "(I)[I"); 1272 if (method_getObjectReferences == NULL) { 1273 ALOGE("Can't find getObjectReferences"); 1274 return -1; 1275 } 1276 method_setObjectReferences = env->GetMethodID(clazz, "setObjectReferences", "(I[I)I"); 1277 if (method_setObjectReferences == NULL) { 1278 ALOGE("Can't find setObjectReferences"); 1279 return -1; 1280 } 1281 method_sessionStarted = env->GetMethodID(clazz, "sessionStarted", "()V"); 1282 if (method_sessionStarted == NULL) { 1283 ALOGE("Can't find sessionStarted"); 1284 return -1; 1285 } 1286 method_sessionEnded = env->GetMethodID(clazz, "sessionEnded", "()V"); 1287 if (method_sessionEnded == NULL) { 1288 ALOGE("Can't find sessionEnded"); 1289 return -1; 1290 } 1291 1292 field_context = env->GetFieldID(clazz, "mNativeContext", "J"); 1293 if (field_context == NULL) { 1294 ALOGE("Can't find MtpDatabase.mNativeContext"); 1295 return -1; 1296 } 1297 field_batteryLevel = env->GetFieldID(clazz, "mBatteryLevel", "I"); 1298 if (field_batteryLevel == NULL) { 1299 ALOGE("Can't find MtpDatabase.mBatteryLevel"); 1300 return -1; 1301 } 1302 field_batteryScale = env->GetFieldID(clazz, "mBatteryScale", "I"); 1303 if (field_batteryScale == NULL) { 1304 ALOGE("Can't find MtpDatabase.mBatteryScale"); 1305 return -1; 1306 } 1307 1308 // now set up fields for MtpPropertyList class 1309 clazz = env->FindClass("android/mtp/MtpPropertyList"); 1310 if (clazz == NULL) { 1311 ALOGE("Can't find android/mtp/MtpPropertyList"); 1312 return -1; 1313 } 1314 field_mCount = env->GetFieldID(clazz, "mCount", "I"); 1315 if (field_mCount == NULL) { 1316 ALOGE("Can't find MtpPropertyList.mCount"); 1317 return -1; 1318 } 1319 field_mResult = env->GetFieldID(clazz, "mResult", "I"); 1320 if (field_mResult == NULL) { 1321 ALOGE("Can't find MtpPropertyList.mResult"); 1322 return -1; 1323 } 1324 field_mObjectHandles = env->GetFieldID(clazz, "mObjectHandles", "[I"); 1325 if (field_mObjectHandles == NULL) { 1326 ALOGE("Can't find MtpPropertyList.mObjectHandles"); 1327 return -1; 1328 } 1329 field_mPropertyCodes = env->GetFieldID(clazz, "mPropertyCodes", "[I"); 1330 if (field_mPropertyCodes == NULL) { 1331 ALOGE("Can't find MtpPropertyList.mPropertyCodes"); 1332 return -1; 1333 } 1334 field_mDataTypes = env->GetFieldID(clazz, "mDataTypes", "[I"); 1335 if (field_mDataTypes == NULL) { 1336 ALOGE("Can't find MtpPropertyList.mDataTypes"); 1337 return -1; 1338 } 1339 field_mLongValues = env->GetFieldID(clazz, "mLongValues", "[J"); 1340 if (field_mLongValues == NULL) { 1341 ALOGE("Can't find MtpPropertyList.mLongValues"); 1342 return -1; 1343 } 1344 field_mStringValues = env->GetFieldID(clazz, "mStringValues", "[Ljava/lang/String;"); 1345 if (field_mStringValues == NULL) { 1346 ALOGE("Can't find MtpPropertyList.mStringValues"); 1347 return -1; 1348 } 1349 1350 if (AndroidRuntime::registerNativeMethods(env, 1351 "android/mtp/MtpDatabase", gMtpDatabaseMethods, NELEM(gMtpDatabaseMethods))) 1352 return -1; 1353 1354 return AndroidRuntime::registerNativeMethods(env, 1355 "android/mtp/MtpPropertyGroup", gMtpPropertyGroupMethods, NELEM(gMtpPropertyGroupMethods)); 1356} 1357