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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 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   typedef std::vector<UsbEndpointDescriptor>::const_iterator Iterator;
     43 
     44   uint8_t address;
     45   UsbEndpointDirection direction;
     46   uint16_t maximum_packet_size;
     47   UsbSynchronizationType synchronization_type;
     48   UsbTransferType transfer_type;
     49   UsbUsageType usage_type;
     50   uint16_t polling_interval;
     51   std::vector<uint8_t> extra_data;
     52 };
     53 
     54 struct UsbInterfaceDescriptor {
     55   UsbInterfaceDescriptor();
     56   ~UsbInterfaceDescriptor();
     57 
     58   typedef std::vector<UsbInterfaceDescriptor>::const_iterator Iterator;
     59 
     60   uint8_t interface_number;
     61   uint8_t alternate_setting;
     62   uint8_t interface_class;
     63   uint8_t interface_subclass;
     64   uint8_t interface_protocol;
     65   std::vector<UsbEndpointDescriptor> endpoints;
     66   std::vector<uint8_t> extra_data;
     67 };
     68 
     69 struct UsbConfigDescriptor {
     70   UsbConfigDescriptor();
     71   ~UsbConfigDescriptor();
     72 
     73   uint8_t configuration_value;
     74   bool self_powered;
     75   bool remote_wakeup;
     76   uint16_t maximum_power;
     77   std::vector<UsbInterfaceDescriptor> interfaces;
     78   std::vector<uint8_t> extra_data;
     79 };
     80 
     81 }  // namespace device
     82 
     83 #endif  // DEVICE_USB_USB_DESCRIPTORS_H_
     84