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 package android.mtp; 18 19 import com.android.internal.util.Preconditions; 20 21 import java.io.FileDescriptor; 22 23 /** 24 * Java wrapper for MTP/PTP support as USB responder. 25 * {@hide} 26 */ 27 public class MtpServer implements Runnable { 28 29 private long mNativeContext; // accessed by native methods 30 private final MtpDatabase mDatabase; 31 private final Runnable mOnTerminate; 32 33 static { 34 System.loadLibrary("media_jni"); 35 } 36 37 public MtpServer( 38 MtpDatabase database, 39 FileDescriptor controlFd, 40 boolean usePtp, 41 Runnable onTerminate, 42 String deviceInfoManufacturer, 43 String deviceInfoModel, 44 String deviceInfoDeviceVersion, 45 String deviceInfoSerialNumber) { 46 mDatabase = Preconditions.checkNotNull(database); 47 mOnTerminate = Preconditions.checkNotNull(onTerminate); 48 native_setup( 49 database, 50 controlFd, 51 usePtp, 52 deviceInfoManufacturer, 53 deviceInfoModel, 54 deviceInfoDeviceVersion, 55 deviceInfoSerialNumber); 56 database.setServer(this); 57 } 58 59 public void start() { 60 Thread thread = new Thread(this, "MtpServer"); 61 thread.start(); 62 } 63 64 @Override 65 public void run() { 66 native_run(); 67 native_cleanup(); 68 mDatabase.close(); 69 mOnTerminate.run(); 70 } 71 72 public void sendObjectAdded(int handle) { 73 native_send_object_added(handle); 74 } 75 76 public void sendObjectRemoved(int handle) { 77 native_send_object_removed(handle); 78 } 79 80 public void sendDevicePropertyChanged(int property) { 81 native_send_device_property_changed(property); 82 } 83 84 public void addStorage(MtpStorage storage) { 85 native_add_storage(storage); 86 } 87 88 public void removeStorage(MtpStorage storage) { 89 native_remove_storage(storage.getStorageId()); 90 } 91 92 public static void configure(boolean usePtp) { 93 native_configure(usePtp); 94 } 95 96 public static native final void native_configure(boolean usePtp); 97 private native final void native_setup( 98 MtpDatabase database, 99 FileDescriptor controlFd, 100 boolean usePtp, 101 String deviceInfoManufacturer, 102 String deviceInfoModel, 103 String deviceInfoDeviceVersion, 104 String deviceInfoSerialNumber); 105 private native final void native_run(); 106 private native final void native_cleanup(); 107 private native final void native_send_object_added(int handle); 108 private native final void native_send_object_removed(int handle); 109 private native final void native_send_device_property_changed(int property); 110 private native final void native_add_storage(MtpStorage storage); 111 private native final void native_remove_storage(int storageId); 112 } 113