device/usb/usb_ids.h

   1 // Copyright (c) 2012 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_IDS_H_
   6 #define DEVICE_USB_USB_IDS_H_
   7
   8 #include <stdint.h>
   9
  10 #include "base/basictypes.h"
  11
  12 namespace device {
  13
  14 struct UsbProduct {
  15   const uint16_t id;
  16   const char* name;
  17 };
  18
  19 struct UsbVendor {
  20   const uint16_t id;
  21   const char* name;
  22   const size_t product_size;
  23   const UsbProduct* products;
  24 };
  25
  26 // UsbIds provides a static mapping from a vendor ID to a name, as well as a
  27 // mapping from a vendor/product ID pair to a product name.
  28 class UsbIds {
  29  public:
  30   // Gets the name of the vendor who owns |vendor_id|. Returns NULL if the
  31   // specified |vendor_id| does not exist.
  32   static const char* GetVendorName(uint16_t vendor_id);
  33
  34   // Gets the name of a product belonging to a specific vendor. If either
  35   // |vendor_id| refers to a vendor that does not exist, or |vendor_id| is valid
  36   // but |product_id| refers to a product that does not exist, this method
  37   // returns NULL.
  38   static const char* GetProductName(uint16_t vendor_id, uint16_t product_id);
  39
  40  private:
  41   UsbIds();
  42   ~UsbIds();
  43
  44   // Finds the static UsbVendor associated with |vendor_id|. Returns NULL if no
  45   // such vendor exists.
  46   static const UsbVendor* FindVendor(uint16_t vendor_id);
  47
  48   // These fields are defined in a generated file. See device/usb/usb.gyp for
  49   // more information on how they are generated.
  50   static const size_t vendor_size_;
  51   static const UsbVendor vendors_[];
  52
  53   DISALLOW_COPY_AND_ASSIGN(UsbIds);
  54 };
  55
  56 }  // namespace device
  57
  58 #endif  // DEVICE_USB_USB_IDS_H_