device/usb/usb_descriptors.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 DEVICE_USB_USB_DESCRIPTORS_H_
   6 #define DEVICE_USB_USB_DESCRIPTORS_H_
   7
   8 #include <stdint.h>
   9 #include <vector>
  10
  11 namespace device {
  12
  13 enum UsbTransferType {
  14   USB_TRANSFER_CONTROL = 0,
  15   USB_TRANSFER_ISOCHRONOUS,
  16   USB_TRANSFER_BULK,
  17   USB_TRANSFER_INTERRUPT,
  18 };
  19
  20 enum UsbEndpointDirection {
  21   USB_DIRECTION_INBOUND = 0,
  22   USB_DIRECTION_OUTBOUND,
  23 };
  24
  25 enum UsbSynchronizationType {
  26   USB_SYNCHRONIZATION_NONE = 0,
  27   USB_SYNCHRONIZATION_ASYNCHRONOUS,
  28   USB_SYNCHRONIZATION_ADAPTIVE,
  29   USB_SYNCHRONIZATION_SYNCHRONOUS,
  30 };
  31
  32 enum UsbUsageType {
  33   USB_USAGE_DATA = 0,
  34   USB_USAGE_FEEDBACK,
  35   USB_USAGE_EXPLICIT_FEEDBACK
  36 };
  37
  38 struct UsbEndpointDescriptor {
  39   UsbEndpointDescriptor();
  40   ~UsbEndpointDescriptor();
  41
  42   uint8_t address;
  43   UsbEndpointDirection direction;
  44   uint16_t maximum_packet_size;
  45   UsbSynchronizationType synchronization_type;
  46   UsbTransferType transfer_type;
  47   UsbUsageType usage_type;
  48   uint16_t polling_interval;
  49   std::vector<uint8_t> extra_data;
  50 };
  51
  52 struct UsbInterfaceDescriptor {
  53   UsbInterfaceDescriptor();
  54   ~UsbInterfaceDescriptor();
  55
  56   uint8_t interface_number;
  57   uint8_t alternate_setting;
  58   uint8_t interface_class;
  59   uint8_t interface_subclass;
  60   uint8_t interface_protocol;
  61   std::vector<UsbEndpointDescriptor> endpoints;
  62   std::vector<uint8_t> extra_data;
  63 };
  64
  65 struct UsbConfigDescriptor {
  66   UsbConfigDescriptor();
  67   ~UsbConfigDescriptor();
  68
  69   uint8_t configuration_value;
  70   bool self_powered;
  71   bool remote_wakeup;
  72   uint16_t maximum_power;
  73   std::vector<UsbInterfaceDescriptor> interfaces;
  74   std::vector<uint8_t> extra_data;
  75 };
  76
  77 }  // namespace device
  78
  79 #endif  // DEVICE_USB_USB_DESCRIPTORS_H_