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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef DEVICE_USB_USB_DEVICE_HANDLE_WIN_H_ |
| 6 #define DEVICE_USB_USB_DEVICE_HANDLE_WIN_H_ |
| 7 |
| 8 #include <unordered_map> |
| 9 #include <vector> |
| 10 |
| 11 #include "base/callback.h" |
| 12 #include "base/macros.h" |
| 13 #include "base/memory/ref_counted.h" |
| 14 #include "base/memory/weak_ptr.h" |
| 15 #include "base/threading/thread_checker.h" |
| 16 #include "base/win/scoped_handle.h" |
| 17 #include "device/usb/usb_device_handle.h" |
| 18 |
| 19 namespace base { |
| 20 class SequencedTaskRunner; |
| 21 class SingleThreadTaskRunner; |
| 22 } |
| 23 |
| 24 namespace net { |
| 25 class IOBuffer; |
| 26 } |
| 27 |
| 28 namespace device { |
| 29 |
| 30 class UsbDeviceWin; |
| 31 |
| 32 // UsbDeviceHandle class provides basic I/O related functionalities. |
| 33 class UsbDeviceHandleWin : public UsbDeviceHandle { |
| 34 public: |
| 35 scoped_refptr<UsbDevice> GetDevice() const override; |
| 36 void Close() override; |
| 37 void SetConfiguration(int configuration_value, |
| 38 const ResultCallback& callback) override; |
| 39 void ClaimInterface(int interface_number, |
| 40 const ResultCallback& callback) override; |
| 41 void ReleaseInterface(int interface_number, |
| 42 const ResultCallback& callback) override; |
| 43 void SetInterfaceAlternateSetting(int interface_number, |
| 44 int alternate_setting, |
| 45 const ResultCallback& callback) override; |
| 46 void ResetDevice(const ResultCallback& callback) override; |
| 47 void ClearHalt(uint8_t endpoint, const ResultCallback& callback) override; |
| 48 |
| 49 void ControlTransfer(UsbEndpointDirection direction, |
| 50 TransferRequestType request_type, |
| 51 TransferRecipient recipient, |
| 52 uint8_t request, |
| 53 uint16_t value, |
| 54 uint16_t index, |
| 55 scoped_refptr<net::IOBuffer> buffer, |
| 56 size_t length, |
| 57 unsigned int timeout, |
| 58 const TransferCallback& callback) override; |
| 59 |
| 60 void IsochronousTransferIn( |
| 61 uint8_t endpoint, |
| 62 const std::vector<uint32_t>& packet_lengths, |
| 63 unsigned int timeout, |
| 64 const IsochronousTransferCallback& callback) override; |
| 65 |
| 66 void IsochronousTransferOut( |
| 67 uint8_t endpoint, |
| 68 scoped_refptr<net::IOBuffer> buffer, |
| 69 const std::vector<uint32_t>& packet_lengths, |
| 70 unsigned int timeout, |
| 71 const IsochronousTransferCallback& callback) override; |
| 72 |
| 73 void GenericTransfer(UsbEndpointDirection direction, |
| 74 uint8_t endpoint_number, |
| 75 scoped_refptr<net::IOBuffer> buffer, |
| 76 size_t length, |
| 77 unsigned int timeout, |
| 78 const TransferCallback& callback) override; |
| 79 const UsbInterfaceDescriptor* FindInterfaceByEndpoint( |
| 80 uint8_t endpoint_address) override; |
| 81 |
| 82 protected: |
| 83 friend class UsbDeviceWin; |
| 84 |
| 85 // Constructor used to build a connection to the device's parent hub. |
| 86 UsbDeviceHandleWin( |
| 87 scoped_refptr<UsbDeviceWin> device, |
| 88 base::win::ScopedHandle handle, |
| 89 scoped_refptr<base::SequencedTaskRunner> blocking_task_runner); |
| 90 |
| 91 ~UsbDeviceHandleWin() override; |
| 92 |
| 93 private: |
| 94 class Request; |
| 95 |
| 96 Request* MakeRequest(HANDLE handle); |
| 97 std::unique_ptr<Request> UnlinkRequest(Request* request); |
| 98 void GotNodeConnectionInformation(const TransferCallback& callback, |
| 99 void* node_connection_info, |
| 100 scoped_refptr<net::IOBuffer> buffer, |
| 101 size_t buffer_length, |
| 102 Request* request_ptr, |
| 103 DWORD win32_result, |
| 104 size_t bytes_transferred); |
| 105 void GotDescriptorFromNodeConnection( |
| 106 const TransferCallback& callback, |
| 107 scoped_refptr<net::IOBuffer> request_buffer, |
| 108 scoped_refptr<net::IOBuffer> original_buffer, |
| 109 size_t original_buffer_length, |
| 110 Request* request_ptr, |
| 111 DWORD win32_result, |
| 112 size_t bytes_transferred); |
| 113 |
| 114 base::ThreadChecker thread_checker_; |
| 115 |
| 116 scoped_refptr<UsbDeviceWin> device_; |
| 117 |
| 118 // |hub_handle_| must outlive |requests_| because individual Request objects |
| 119 // hold on to the handle for the purpose of calling GetOverlappedResult(). |
| 120 base::win::ScopedHandle hub_handle_; |
| 121 std::unordered_map<Request*, std::unique_ptr<Request>> requests_; |
| 122 |
| 123 scoped_refptr<base::SingleThreadTaskRunner> task_runner_; |
| 124 scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_; |
| 125 |
| 126 base::WeakPtrFactory<UsbDeviceHandleWin> weak_factory_; |
| 127 |
| 128 DISALLOW_COPY_AND_ASSIGN(UsbDeviceHandleWin); |
| 129 }; |
| 130 |
| 131 } // namespace device |
| 132 |
| 133 #endif // DEVICE_USB_USB_DEVICE_HANDLE_WIN_H_ |
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