blob: 67d6299ad42a49933c97c8ebd327d17d0e806ca4 (
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
|
// Copyright (c) 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef DEVICE_HID_HID_CONNECTION_LINUX_H_
#define DEVICE_HID_HID_CONNECTION_LINUX_H_
#include "base/files/file.h"
#include "base/memory/ref_counted.h"
#include "device/hid/hid_connection.h"
#include "device/hid/hid_device_info.h"
#include "device/hid/hid_service_linux.h"
namespace device {
class HidConnectionLinux : public HidConnection,
public base::MessagePumpLibevent::Watcher {
public:
HidConnectionLinux(HidDeviceInfo device_info,
ScopedUdevDevicePtr udev_raw_device);
virtual void Read(scoped_refptr<net::IOBufferWithSize> buffer,
const IOCallback& callback) OVERRIDE;
virtual void Write(uint8_t report_id,
scoped_refptr<net::IOBufferWithSize> buffer,
const IOCallback& callback) OVERRIDE;
virtual void GetFeatureReport(uint8_t report_id,
scoped_refptr<net::IOBufferWithSize> buffer,
const IOCallback& callback) OVERRIDE;
virtual void SendFeatureReport(uint8_t report_id,
scoped_refptr<net::IOBufferWithSize> buffer,
const IOCallback& callback) OVERRIDE;
// Implements base::MessagePumpLibevent::Watcher
virtual void OnFileCanReadWithoutBlocking(int fd) OVERRIDE;
virtual void OnFileCanWriteWithoutBlocking(int fd) OVERRIDE;
private:
friend class base::RefCountedThreadSafe<HidConnectionLinux>;
virtual ~HidConnectionLinux();
static bool FindHidrawDevNode(udev_device* parent, std::string* result);
void ProcessReadQueue();
void Disconnect();
base::File device_file_;
base::MessagePumpLibevent::FileDescriptorWatcher device_file_watcher_;
std::queue<PendingHidReport> pending_reports_;
std::queue<PendingHidRead> pending_reads_;
base::ThreadChecker thread_checker_;
DISALLOW_COPY_AND_ASSIGN(HidConnectionLinux);
};
} // namespace device
#endif // DEVICE_HID_HID_CONNECTION_LINUX__
|
