components/usb_service/usb_interface_impl.h

   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_INTERFACE_IMPL_H_
   6 #define COMPONENTS_USB_SERVICE_USB_INTERFACE_IMPL_H_
   7
   8 #include "base/memory/ref_counted.h"
   9 #include "components/usb_service/usb_interface.h"
  10 #include "components/usb_service/usb_service_export.h"
  11
  12 struct libusb_config_descriptor;
  13 struct libusb_endpoint_descriptor;
  14 struct libusb_interface;
  15 struct libusb_interface_descriptor;
  16
  17 namespace usb_service {
  18
  19 typedef libusb_config_descriptor* PlatformUsbConfigDescriptor;
  20 typedef const libusb_endpoint_descriptor* PlatformUsbEndpointDescriptor;
  21 typedef const libusb_interface* PlatformUsbInterface;
  22 typedef const libusb_interface_descriptor* PlatformUsbInterfaceDescriptor;
  23
  24 class UsbConfigDescriptorImpl;
  25 class UsbInterfaceAltSettingDescriptor;
  26
  27 class UsbEndpointDescriptorImpl : public UsbEndpointDescriptor {
  28  public:
  29   virtual int GetAddress() const OVERRIDE;
  30   virtual UsbEndpointDirection GetDirection() const OVERRIDE;
  31   virtual int GetMaximumPacketSize() const OVERRIDE;
  32   virtual UsbSynchronizationType GetSynchronizationType() const OVERRIDE;
  33   virtual UsbTransferType GetTransferType() const OVERRIDE;
  34   virtual UsbUsageType GetUsageType() const OVERRIDE;
  35   virtual int GetPollingInterval() const OVERRIDE;
  36
  37  private:
  38   friend class base::RefCounted<const UsbEndpointDescriptorImpl>;
  39   friend class UsbInterfaceAltSettingDescriptorImpl;
  40
  41   UsbEndpointDescriptorImpl(scoped_refptr<const UsbConfigDescriptor> config,
  42                         PlatformUsbEndpointDescriptor descriptor);
  43   virtual ~UsbEndpointDescriptorImpl();
  44
  45   scoped_refptr<const UsbConfigDescriptor> config_;
  46   PlatformUsbEndpointDescriptor descriptor_;
  47
  48   DISALLOW_COPY_AND_ASSIGN(UsbEndpointDescriptorImpl);
  49 };
  50
  51 class UsbInterfaceAltSettingDescriptorImpl
  52     : public UsbInterfaceAltSettingDescriptor {
  53  public:
  54   virtual size_t GetNumEndpoints() const OVERRIDE;
  55   virtual scoped_refptr<const UsbEndpointDescriptor> GetEndpoint(
  56       size_t index) const OVERRIDE;
  57
  58   virtual int GetInterfaceNumber() const OVERRIDE;
  59   virtual int GetAlternateSetting() const OVERRIDE;
  60   virtual int GetInterfaceClass() const OVERRIDE;
  61   virtual int GetInterfaceSubclass() const OVERRIDE;
  62   virtual int GetInterfaceProtocol() const OVERRIDE;
  63
  64  private:
  65   friend class UsbInterfaceDescriptorImpl;
  66
  67   UsbInterfaceAltSettingDescriptorImpl(
  68       scoped_refptr<const UsbConfigDescriptor> config,
  69       PlatformUsbInterfaceDescriptor descriptor);
  70   virtual ~UsbInterfaceAltSettingDescriptorImpl();
  71
  72   scoped_refptr<const UsbConfigDescriptor> config_;
  73   PlatformUsbInterfaceDescriptor descriptor_;
  74
  75   DISALLOW_COPY_AND_ASSIGN(UsbInterfaceAltSettingDescriptorImpl);
  76 };
  77
  78 class UsbInterfaceDescriptorImpl : public UsbInterfaceDescriptor {
  79  public:
  80   virtual size_t GetNumAltSettings() const OVERRIDE;
  81   virtual scoped_refptr<const UsbInterfaceAltSettingDescriptor> GetAltSetting(
  82       size_t index) const OVERRIDE;
  83
  84  private:
  85   friend class base::RefCounted<const UsbInterfaceDescriptorImpl>;
  86   friend class UsbConfigDescriptorImpl;
  87
  88   UsbInterfaceDescriptorImpl(scoped_refptr<const UsbConfigDescriptor> config,
  89                              PlatformUsbInterface usbInterface);
  90   virtual ~UsbInterfaceDescriptorImpl();
  91
  92   scoped_refptr<const UsbConfigDescriptor> config_;
  93   PlatformUsbInterface interface_;
  94
  95   DISALLOW_COPY_AND_ASSIGN(UsbInterfaceDescriptorImpl);
  96 };
  97
  98 class UsbConfigDescriptorImpl : public UsbConfigDescriptor {
  99  public:
 100   virtual size_t GetNumInterfaces() const OVERRIDE;
 101   virtual scoped_refptr<const UsbInterfaceDescriptor> GetInterface(
 102       size_t index) const OVERRIDE;
 103
 104  private:
 105   friend class base::RefCounted<UsbConfigDescriptor>;
 106   friend class UsbDeviceImpl;
 107
 108   explicit UsbConfigDescriptorImpl(PlatformUsbConfigDescriptor config);
 109   virtual ~UsbConfigDescriptorImpl();
 110
 111   PlatformUsbConfigDescriptor config_;
 112
 113   DISALLOW_COPY_AND_ASSIGN(UsbConfigDescriptorImpl);
 114 };
 115
 116 }  // namespace usb_service;
 117
 118 #endif  // COMPONENTS_USB_SERVICE_USB_INTERFACE_IMPL_H_