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
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
|
// Copyright 2015 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_USB_MOJO_DEVICE_IMPL_H_
#define DEVICE_USB_MOJO_DEVICE_IMPL_H_
#include <stdint.h>
#include <vector>
#include "base/callback_forward.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "base/scoped_observer.h"
#include "device/usb/mojo/permission_provider.h"
#include "device/usb/public/interfaces/device.mojom.h"
#include "device/usb/usb_device.h"
#include "device/usb/usb_device_handle.h"
#include "mojo/public/cpp/bindings/strong_binding.h"
namespace device {
namespace usb {
class PermissionProvider;
// Implementation of the public Device interface. Instances of this class are
// constructed by DeviceManagerImpl and are strongly bound to their MessagePipe
// lifetime.
class DeviceImpl : public mojom::UsbDevice, public device::UsbDevice::Observer {
public:
static void Create(scoped_refptr<device::UsbDevice> device,
base::WeakPtr<PermissionProvider> permission_provider,
mojom::UsbDeviceRequest request);
~DeviceImpl() override;
private:
DeviceImpl(scoped_refptr<device::UsbDevice> device,
base::WeakPtr<PermissionProvider> permission_provider);
// Closes the device if it's open. This will always set |device_handle_| to
// null.
void CloseHandle();
// Checks interface permissions for control transfers.
bool HasControlTransferPermission(
mojom::UsbControlTransferRecipient recipient,
uint16_t index);
// Handles completion of an open request.
static void OnOpen(base::WeakPtr<DeviceImpl> device,
const OpenCallback& callback,
scoped_refptr<device::UsbDeviceHandle> handle);
void OnPermissionGrantedForOpen(const OpenCallback& callback, bool granted);
// Device implementation:
void Open(const OpenCallback& callback) override;
void Close(const CloseCallback& callback) override;
void SetConfiguration(uint8_t value,
const SetConfigurationCallback& callback) override;
void ClaimInterface(uint8_t interface_number,
const ClaimInterfaceCallback& callback) override;
void ReleaseInterface(uint8_t interface_number,
const ReleaseInterfaceCallback& callback) override;
void SetInterfaceAlternateSetting(
uint8_t interface_number,
uint8_t alternate_setting,
const SetInterfaceAlternateSettingCallback& callback) override;
void Reset(const ResetCallback& callback) override;
void ClearHalt(uint8_t endpoint, const ClearHaltCallback& callback) override;
void ControlTransferIn(mojom::UsbControlTransferParamsPtr params,
uint32_t length,
uint32_t timeout,
const ControlTransferInCallback& callback) override;
void ControlTransferOut(mojom::UsbControlTransferParamsPtr params,
const std::vector<uint8_t>& data,
uint32_t timeout,
const ControlTransferOutCallback& callback) override;
void GenericTransferIn(uint8_t endpoint_number,
uint32_t length,
uint32_t timeout,
const GenericTransferInCallback& callback) override;
void GenericTransferOut(uint8_t endpoint_number,
const std::vector<uint8_t>& data,
uint32_t timeout,
const GenericTransferOutCallback& callback) override;
void IsochronousTransferIn(
uint8_t endpoint_number,
const std::vector<uint32_t>& packet_lengths,
uint32_t timeout,
const IsochronousTransferInCallback& callback) override;
void IsochronousTransferOut(
uint8_t endpoint_number,
const std::vector<uint8_t>& data,
const std::vector<uint32_t>& packet_lengths,
uint32_t timeout,
const IsochronousTransferOutCallback& callback) override;
// device::UsbDevice::Observer implementation:
void OnDeviceRemoved(scoped_refptr<device::UsbDevice> device) override;
const scoped_refptr<device::UsbDevice> device_;
base::WeakPtr<PermissionProvider> permission_provider_;
ScopedObserver<device::UsbDevice, device::UsbDevice::Observer> observer_;
// The device handle. Will be null before the device is opened and after it
// has been closed.
scoped_refptr<UsbDeviceHandle> device_handle_;
mojo::StrongBindingPtr<mojom::UsbDevice> binding_;
base::WeakPtrFactory<DeviceImpl> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(DeviceImpl);
};
} // namespace usb
} // namespace device
#endif // DEVICE_USB_MOJO_DEVICE_IMPL_H_
|
