MtpServer.java revision d3e4290c0442b6dcf24bcf642f4fc26d12d8e7aa 
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 final Object mLock = new Object();
28    private boolean mStarted;
29
30    private static final String TAG = "MtpServer";
31
32    static {
33        System.loadLibrary("media_jni");
34    }
35
36    public MtpServer(MtpDatabase database) {
37        native_setup(database);
38    }
39
40    public void start() {
41        synchronized (mLock) {
42            native_start();
43            mStarted = true;
44        }
45    }
46
47    public void stop() {
48        synchronized (mLock) {
49            if (mStarted) {
50                native_stop();
51                mStarted = false;
52            }
53        }
54    }
55
56    public void sendObjectAdded(int handle) {
57        native_send_object_added(handle);
58    }
59
60    public void sendObjectRemoved(int handle) {
61        native_send_object_removed(handle);
62    }
63
64    public void setPtpMode(boolean usePtp) {
65        native_set_ptp_mode(usePtp);
66    }
67
68    public void addStorage(MtpStorage storage) {
69        native_add_storage(storage);
70    }
71
72    public void removeStorage(MtpStorage storage) {
73        native_remove_storage(storage.getStorageId());
74    }
75
76    private native final void native_setup(MtpDatabase database);
77    private native final void native_start();
78    private native final void native_stop();
79    private native final void native_send_object_added(int handle);
80    private native final void native_send_object_removed(int handle);
81    private native final void native_set_ptp_mode(boolean usePtp);
82    private native final void native_add_storage(MtpStorage storage);
83    private native final void native_remove_storage(int storageId);
84}
85