blob: 2801861864b89c643ec12f54a59a0899d5fc62cc (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2018, Google Inc.
*
* device_enumerator.h - API to enumerate and find media devices
*/
#ifndef __LIBCAMERA_DEVICE_ENUMERATOR_H__
#define __LIBCAMERA_DEVICE_ENUMERATOR_H__
#include <map>
#include <memory>
#include <string>
#include <vector>
#include <linux/media.h>
struct udev;
struct udev_monitor;
namespace libcamera {
class EventNotifier;
class MediaDevice;
class DeviceMatch
{
public:
DeviceMatch(const std::string &driver);
void add(const std::string &entity);
bool match(const MediaDevice *device) const;
private:
std::string driver_;
std::vector<std::string> entities_;
};
class DeviceEnumerator
{
public:
static std::unique_ptr<DeviceEnumerator> create();
virtual ~DeviceEnumerator();
virtual int init() = 0;
virtual int enumerate() = 0;
std::shared_ptr<MediaDevice> search(const DeviceMatch &dm);
protected:
int addDevice(const std::string &deviceNode);
void removeDevice(const std::string &deviceNode);
private:
std::vector<std::shared_ptr<MediaDevice>> devices_;
virtual std::string lookupDeviceNode(int major, int minor) = 0;
};
class DeviceEnumeratorUdev: public DeviceEnumerator
{
public:
DeviceEnumeratorUdev();
~DeviceEnumeratorUdev();
int init() final;
int enumerate() final;
private:
struct udev *udev_;
struct udev_monitor *monitor_;
EventNotifier *notifier_;
std::string lookupDeviceNode(int major, int minor) final;
void udevNotify(EventNotifier *notifier);
};
} /* namespace libcamera */
#endif /* __LIBCAMERA_DEVICE_ENUMERATOR_H__ */
|
