MtpServer.java revision 66e57f6aa9d206552e9b154bf00a17d6efae7fb0 
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
17package android.mtp;
18
19import android.util.Log;
20
21/**
22 * Java wrapper for MTP/PTP support as USB responder.
23 * {@hide}
24 */
25public class MtpServer {
26
27    private static final String TAG = "MtpServer";
28
29    static {
30        System.loadLibrary("media_jni");
31    }
32
33    public MtpServer(MtpDatabase database, String storagePath, long reserveSpace) {
34        native_setup(database, storagePath, reserveSpace);
35    }
36
37    public void start() {
38        native_start();
39    }
40
41    public void stop() {
42        native_stop();
43    }
44
45    public void sendObjectAdded(int handle) {
46        native_send_object_added(handle);
47    }
48
49    public void sendObjectRemoved(int handle) {
50        native_send_object_removed(handle);
51    }
52
53    public void setPtpMode(boolean usePtp) {
54        native_set_ptp_mode(usePtp);
55    }
56
57    // Used to disable MTP by removing all storage units.
58    // This is done to disable access to file transfer when the device is locked.
59    public void setLocked(boolean locked) {
60        native_set_locked(locked);
61    }
62
63    private native final void native_setup(MtpDatabase database, String storagePath,
64            long reserveSpace);
65    private native final void native_start();
66    private native final void native_stop();
67    private native final void native_send_object_added(int handle);
68    private native final void native_send_object_removed(int handle);
69    private native final void native_set_ptp_mode(boolean usePtp);
70    private native final void native_set_locked(boolean locked);
71}
72