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| 1 // Copyright 2014 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 COMPONENTS_USB_SERVICE_USB_DEVICE_HANDLE_H_ | |
| 6 #define COMPONENTS_USB_SERVICE_USB_DEVICE_HANDLE_H_ | |
| 7 | |
| 8 #include <map> | |
| 9 #include <vector> | |
| 10 | |
| 11 #include "base/callback.h" | |
| 12 #include "base/memory/ref_counted.h" | |
| 13 #include "base/strings/string16.h" | |
| 14 #include "base/threading/thread_checker.h" | |
| 15 #include "components/usb_service/usb_interface.h" | |
| 16 #include "components/usb_service/usb_service_export.h" | |
| 17 #include "net/base/io_buffer.h" | |
| 18 | |
| 19 namespace usb_service { | |
| 20 | |
| 21 class UsbDevice; | |
| 22 | |
| 23 enum UsbTransferStatus { | |
| 24 USB_TRANSFER_COMPLETED = 0, | |
| 25 USB_TRANSFER_ERROR, | |
| 26 USB_TRANSFER_TIMEOUT, | |
| 27 USB_TRANSFER_CANCELLED, | |
| 28 USB_TRANSFER_STALLED, | |
| 29 USB_TRANSFER_DISCONNECT, | |
| 30 USB_TRANSFER_OVERFLOW, | |
| 31 USB_TRANSFER_LENGTH_SHORT, | |
| 32 }; | |
| 33 | |
| 34 typedef base::Callback< | |
| 35 void(UsbTransferStatus, scoped_refptr<net::IOBuffer>, size_t)> | |
| 36 UsbTransferCallback; | |
| 37 | |
| 38 // UsbDeviceHandle class provides basic I/O related functionalities. | |
| 39 class USB_SERVICE_EXPORT UsbDeviceHandle | |
| 40 : public base::RefCountedThreadSafe<UsbDeviceHandle> { | |
| 41 public: | |
| 42 enum TransferRequestType { STANDARD, CLASS, VENDOR, RESERVED }; | |
| 43 enum TransferRecipient { DEVICE, INTERFACE, ENDPOINT, OTHER }; | |
| 44 | |
| 45 virtual scoped_refptr<UsbDevice> GetDevice() const = 0; | |
| 46 | |
| 47 // Notifies UsbDevice to drop the reference of this object; cancels all the | |
| 48 // flying transfers. | |
| 49 // It is possible that the object has no other reference after this call. So | |
| 50 // if it is called using a raw pointer, it could be invalidated. | |
| 51 // The platform device handle will be closed when UsbDeviceHandle destructs. | |
| 52 virtual void Close() = 0; | |
| 53 | |
| 54 // Device manipulation operations. These methods are blocking and must be | |
| 55 // called on FILE thread. | |
| 56 virtual bool ClaimInterface(const int interface_number) = 0; | |
| 57 virtual bool ReleaseInterface(const int interface_number) = 0; | |
| 58 virtual bool SetInterfaceAlternateSetting(const int interface_number, | |
| 59 const int alternate_setting) = 0; | |
| 60 virtual bool ResetDevice() = 0; | |
| 61 virtual bool GetManufacturer(base::string16* manufacturer) = 0; | |
| 62 virtual bool GetProduct(base::string16* product) = 0; | |
| 63 virtual bool GetSerial(base::string16* serial) = 0; | |
| 64 | |
| 65 // Async IO. Can be called on any thread. | |
| 66 virtual void ControlTransfer(const UsbEndpointDirection direction, | |
| 67 const TransferRequestType request_type, | |
| 68 const TransferRecipient recipient, | |
| 69 const uint8 request, | |
| 70 const uint16 value, | |
| 71 const uint16 index, | |
| 72 net::IOBuffer* buffer, | |
| 73 const size_t length, | |
| 74 const unsigned int timeout, | |
| 75 const UsbTransferCallback& callback) = 0; | |
| 76 | |
| 77 virtual void BulkTransfer(const UsbEndpointDirection direction, | |
| 78 const uint8 endpoint, | |
| 79 net::IOBuffer* buffer, | |
| 80 const size_t length, | |
| 81 const unsigned int timeout, | |
| 82 const UsbTransferCallback& callback) = 0; | |
| 83 | |
| 84 virtual void InterruptTransfer(const UsbEndpointDirection direction, | |
| 85 const uint8 endpoint, | |
| 86 net::IOBuffer* buffer, | |
| 87 const size_t length, | |
| 88 const unsigned int timeout, | |
| 89 const UsbTransferCallback& callback) = 0; | |
| 90 | |
| 91 virtual void IsochronousTransfer(const UsbEndpointDirection direction, | |
| 92 const uint8 endpoint, | |
| 93 net::IOBuffer* buffer, | |
| 94 const size_t length, | |
| 95 const unsigned int packets, | |
| 96 const unsigned int packet_length, | |
| 97 const unsigned int timeout, | |
| 98 const UsbTransferCallback& callback) = 0; | |
| 99 | |
| 100 protected: | |
| 101 friend class base::RefCountedThreadSafe<UsbDeviceHandle>; | |
| 102 | |
| 103 UsbDeviceHandle() {}; | |
| 104 | |
| 105 virtual ~UsbDeviceHandle() {}; | |
| 106 | |
| 107 DISALLOW_COPY_AND_ASSIGN(UsbDeviceHandle); | |
| 108 }; | |
| 109 | |
| 110 } // namespace usb_service | |
| 111 | |
| 112 #endif // COMPONENTS_USB_SERVICE_USB_DEVICE_HANDLE_H_ | |
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Chromium Code Reviews
Issue 497363004:
Merge components/usb_service into device/usb. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master