hid_service_win.cc revision 5d1f7b1de12d16ceb2c938c56701a3e8bfa558f7
15d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Copyright (c) 2014 The Chromium Authors. All rights reserved. 25d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// found in the LICENSE file. 45d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 55d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "device/hid/hid_service_win.h" 65d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 75d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <cstdlib> 85d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <string> 95d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "base/callback_helpers.h" 115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "base/lazy_instance.h" 125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "base/memory/scoped_ptr.h" 135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "base/stl_util.h" 145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "base/strings/sys_string_conversions.h" 155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "device/hid/hid_connection.h" 165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "device/hid/hid_connection_win.h" 175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "device/hid/hid_service.h" 185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "net/base/io_buffer.h" 195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#if defined(OS_WIN) 215d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#define INITGUID 235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <windows.h> 255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <hidclass.h> 265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)extern "C" { 285d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 295d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <hidsdi.h> 305d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <hidpi.h> 315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 325d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <setupapi.h> 355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include <winioctl.h> 365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#include "base/win/scoped_handle.h" 375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 385d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#endif // defined(OS_WIN) 395d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Setup API is required to enumerate HID devices. 415d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#pragma comment(lib, "setupapi.lib") 425d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#pragma comment(lib, "hid.lib") 435d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)namespace device { 455d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)namespace { 465d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 475d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)const char kHIDClass[] = "HIDClass"; 485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} // namespace 505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)HidServiceWin::HidServiceWin() { 525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) initialized_ = Enumerate(); 535d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 545d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)HidServiceWin::~HidServiceWin() {} 555d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)bool HidServiceWin::Enumerate() { 575d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) BOOL res; 585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) HDEVINFO device_info_set; 595d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) SP_DEVINFO_DATA devinfo_data; 605d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) SP_DEVICE_INTERFACE_DATA device_interface_data; 615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 625d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) memset(&devinfo_data, 0, sizeof(SP_DEVINFO_DATA)); 635d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) devinfo_data.cbSize = sizeof(SP_DEVINFO_DATA); 645d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_interface_data.cbSize = sizeof(SP_DEVICE_INTERFACE_DATA); 655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_info_set = SetupDiGetClassDevs( 675d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) &GUID_DEVINTERFACE_HID, 685d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL, 695d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL, 705d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) DIGCF_PRESENT | DIGCF_DEVICEINTERFACE); 715d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 725d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (device_info_set == INVALID_HANDLE_VALUE) 735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return false; 745d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 755d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) for (int device_index = 0; 765d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) SetupDiEnumDeviceInterfaces(device_info_set, 775d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL, 785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) &GUID_DEVINTERFACE_HID, 795d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_index, 805d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) &device_interface_data); 815d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_index++) { 825d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) DWORD required_size = 0; 835d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 845d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Determime the required size of detail struct. 855d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) SetupDiGetDeviceInterfaceDetailA(device_info_set, 865d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) &device_interface_data, 875d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL, 885d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 0, 895d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) &required_size, 905d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL); 915d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 925d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) scoped_ptr_malloc<SP_DEVICE_INTERFACE_DETAIL_DATA_A> 935d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_interface_detail_data( 945d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) reinterpret_cast<SP_DEVICE_INTERFACE_DETAIL_DATA_A*>( 955d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) malloc(required_size))); 965d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_interface_detail_data->cbSize = 975d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) sizeof(SP_DEVICE_INTERFACE_DETAIL_DATA_A); 985d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 995d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Get the detailed data for this device. 1005d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) res = SetupDiGetDeviceInterfaceDetailA(device_info_set, 1015d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) &device_interface_data, 1025d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_interface_detail_data.get(), 1035d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) required_size, 1045d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL, 1055d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL); 1065d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!res) 1075d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) continue; 1085d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1095d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Enumerate device info. Looking for Setup Class "HIDClass". 1105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) for (DWORD i = 0; 1115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) SetupDiEnumDeviceInfo(device_info_set, i, &devinfo_data); 1125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) i++) { 1135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) char class_name[256] = {0}; 1145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) res = SetupDiGetDeviceRegistryPropertyA(device_info_set, 1155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) &devinfo_data, 1165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) SPDRP_CLASS, 1175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL, 1185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) (PBYTE) class_name, 1195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) sizeof(class_name) - 1, 1205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL); 1215d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!res) 1225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) break; 1235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (memcmp(class_name, kHIDClass, sizeof(kHIDClass)) == 0) { 1245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) char driver_name[256] = {0}; 1255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Get bounded driver. 1265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) res = SetupDiGetDeviceRegistryPropertyA(device_info_set, 1275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) &devinfo_data, 1285d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) SPDRP_DRIVER, 1295d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL, 1305d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) (PBYTE) driver_name, 1315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) sizeof(driver_name) - 1, 1325d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL); 1335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (res) { 1345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Found the drive. 1355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) break; 1365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 1375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 1385d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 1395d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!res) 1415d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) continue; 1425d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1435d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) PlatformAddDevice(device_interface_detail_data->DevicePath); 1445d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 1455d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1465d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return true; 1475d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 1485d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void HidServiceWin::PlatformAddDevice(std::string device_path) { 1505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) HidDeviceInfo device_info; 1515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_info.device_id = device_path; 1525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1535d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Try to open the device. 1545d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) base::win::ScopedHandle device_handle( 1555d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) CreateFileA(device_path.c_str(), 1565d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 0, 1575d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) FILE_SHARE_READ | FILE_SHARE_WRITE, 1585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) NULL, 1595d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) OPEN_EXISTING, 1605d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) FILE_FLAG_OVERLAPPED, 1615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 0)); 1625d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!device_handle.IsValid()) 1635d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return; 1645d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1655d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Get VID/PID pair. 1665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) HIDD_ATTRIBUTES attrib = {0}; 1675d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) attrib.Size = sizeof(HIDD_ATTRIBUTES); 1685d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!HidD_GetAttributes(device_handle.Get(), &attrib)) 1695d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return; 1705d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1715d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_info.vendor_id = attrib.VendorID; 1725d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_info.product_id = attrib.ProductID; 1735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1745d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) for (ULONG i = 32; 1755d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) HidD_SetNumInputBuffers(device_handle.Get(), i); 1765d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) i <<= 1); 1775d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1785d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Get usage and usage page (optional). 1795d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) PHIDP_PREPARSED_DATA preparsed_data; 1805d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (HidD_GetPreparsedData(device_handle.Get(), &preparsed_data) && 1815d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) preparsed_data) { 1825d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) HIDP_CAPS capabilities; 1835d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (HidP_GetCaps(preparsed_data, &capabilities) == HIDP_STATUS_SUCCESS) { 1845d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_info.usage = capabilities.Usage; 1855d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_info.usage_page = capabilities.UsagePage; 1865d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_info.input_report_size = capabilities.InputReportByteLength; 1875d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_info.output_report_size = capabilities.OutputReportByteLength; 1885d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_info.feature_report_size = capabilities.FeatureReportByteLength; 1895d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 1905d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Detect if the device supports report ids. 1915d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (capabilities.NumberInputValueCaps > 0) { 1925d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) scoped_ptr<HIDP_VALUE_CAPS[]> value_caps( 1935d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) new HIDP_VALUE_CAPS[capabilities.NumberInputValueCaps]); 1945d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) USHORT value_caps_length = capabilities.NumberInputValueCaps; 1955d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (HidP_GetValueCaps(HidP_Input, &value_caps[0], &value_caps_length, 1965d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) preparsed_data) == HIDP_STATUS_SUCCESS) { 1975d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_info.has_report_id = (value_caps[0].ReportID != 0); 1985d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 1995d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 2005d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) HidD_FreePreparsedData(preparsed_data); 2015d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 2025d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2035d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Get the serial number 2045d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) wchar_t str_property[512] = { 0 }; 2055d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (HidD_GetSerialNumberString(device_handle.Get(), 2065d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) str_property, 2075d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) sizeof(str_property))) { 2085d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_info.serial_number = base::SysWideToUTF8(str_property); 2095d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 2105d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2115d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (HidD_GetProductString(device_handle.Get(), 2125d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) str_property, 2135d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) sizeof(str_property))) { 2145d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) device_info.product_name = base::SysWideToUTF8(str_property); 2155d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 2165d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2175d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) HidService::AddDevice(device_info); 2185d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 2195d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2205d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void HidServiceWin::PlatformRemoveDevice(std::string device_path) { 2215d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) HidService::RemoveDevice(device_path); 2225d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 2235d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2245d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)void HidServiceWin::GetDevices(std::vector<HidDeviceInfo>* devices) { 2255d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) Enumerate(); 2265d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) HidService::GetDevices(devices); 2275d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 2285d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2295d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)scoped_refptr<HidConnection> HidServiceWin::Connect(std::string device_id) { 2305d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!ContainsKey(devices_, device_id)) return NULL; 2315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) scoped_refptr<HidConnectionWin> connection( 2325d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) new HidConnectionWin(devices_[device_id])); 2335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) if (!connection->available()) { 2345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) LOG_GETLASTERROR(ERROR) << "Failed to open device."; 2355d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return NULL; 2365d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) } 2375d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) return connection; 2385d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} 2395d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 2405d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)} // namespace device 241