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
17#pragma once
18
19#include <sys/types.h>
20
21// USB host/client interface.
22
23#define ADB_USB_INTERFACE(handle_ref_type)                       \
24    void usb_init();                                             \
25    void usb_cleanup();                                          \
26    int usb_write(handle_ref_type h, const void* data, int len); \
27    int usb_read(handle_ref_type h, void* data, int len);        \
28    int usb_close(handle_ref_type h);                            \
29    void usb_kick(handle_ref_type h);                            \
30    size_t usb_get_max_packet_size(handle_ref_type)
31
32#if defined(_WIN32) || !ADB_HOST
33// Windows and the daemon have a single implementation.
34
35struct usb_handle;
36ADB_USB_INTERFACE(usb_handle*);
37
38#else // linux host || darwin
39// Linux and Darwin clients have native and libusb implementations.
40
41namespace libusb {
42    struct usb_handle;
43    ADB_USB_INTERFACE(libusb::usb_handle*);
44}
45
46namespace native {
47    struct usb_handle;
48    ADB_USB_INTERFACE(native::usb_handle*);
49}
50
51// Empty base that both implementations' opaque handles inherit from.
52struct usb_handle {
53};
54
55ADB_USB_INTERFACE(::usb_handle*);
56
57#endif // linux host || darwin
58
59
60// USB device detection.
61int is_adb_interface(int usb_class, int usb_subclass, int usb_protocol);
62
63bool should_use_libusb();
64