device/serial/serial_device_enumerator_win.cc

   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 #include "device/serial/serial_device_enumerator_win.h"
   6
   7 #include <windows.h>
   8
   9 #include "base/memory/scoped_ptr.h"
  10 #include "base/strings/string_util.h"
  11 #include "base/strings/stringprintf.h"
  12 #include "base/strings/utf_string_conversions.h"
  13 #include "base/win/registry.h"
  14
  15 namespace device {
  16
  17 // static
  18 scoped_ptr<SerialDeviceEnumerator> SerialDeviceEnumerator::Create() {
  19   return scoped_ptr<SerialDeviceEnumerator>(new SerialDeviceEnumeratorWin());
  20 }
  21
  22 SerialDeviceEnumeratorWin::SerialDeviceEnumeratorWin() {}
  23
  24 SerialDeviceEnumeratorWin::~SerialDeviceEnumeratorWin() {}
  25
  26 // TODO(rockot): Query the system for more information than just device paths.
  27 // This may or may not require using a different strategy than scanning the
  28 // registry location below.
  29 mojo::Array<serial::DeviceInfoPtr> SerialDeviceEnumeratorWin::GetDevices() {
  30   base::win::RegistryValueIterator iter_key(
  31       HKEY_LOCAL_MACHINE, L"HARDWARE\\DEVICEMAP\\SERIALCOMM\\");
  32   mojo::Array<serial::DeviceInfoPtr> devices(0);
  33   for (; iter_key.Valid(); ++iter_key) {
  34     serial::DeviceInfoPtr info(serial::DeviceInfo::New());
  35     info->path = base::UTF16ToASCII(iter_key.Value());
  36     devices.push_back(info.Pass());
  37   }
  38   return devices.Pass();
  39 }
  40
  41 }  // namespace device