1/*
2 * Copyright (C) 2016 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#ifndef _IMTP_HANDLE_H
17#define _IMTP_HANDLE_H
18
19#include <linux/usb/f_mtp.h>
20
21constexpr char FFS_MTP_EP0[] = "/dev/usb-ffs/mtp/ep0";
22
23class IMtpHandle {
24public:
25    // Return number of bytes read/written, or -1 and errno is set
26    virtual int read(void *data, int len) = 0;
27    virtual int write(const void *data, int len) = 0;
28
29    // Return 0 if send/receive is successful, or -1 and errno is set
30    virtual int receiveFile(mtp_file_range mfr, bool zero_packet) = 0;
31    virtual int sendFile(mtp_file_range mfr) = 0;
32    virtual int sendEvent(mtp_event me) = 0;
33
34    // Return 0 if operation is successful, or -1 else
35    virtual int start() = 0;
36    virtual int configure(bool ptp) = 0;
37
38    virtual void close() = 0;
39
40    virtual ~IMtpHandle() {}
41};
42
43IMtpHandle *get_ffs_handle();
44IMtpHandle *get_mtp_handle();
45
46#endif // _IMTP_HANDLE_H
47
48