| 1 | /* |
| 2 | * This file is part of the libCEC(R) library. |
| 3 | * |
| 4 | * libCEC(R) is Copyright (C) 2011-2013 Pulse-Eight Limited. All rights reserved. |
| 5 | * libCEC(R) is an original work, containing original code. |
| 6 | * |
| 7 | * libCEC(R) is a trademark of Pulse-Eight Limited. |
| 8 | * |
| 9 | * This program is dual-licensed; you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation; either version 2 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program; if not, write to the Free Software |
| 21 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
| 22 | * |
| 23 | * |
| 24 | * Alternatively, you can license this library under a commercial license, |
| 25 | * please contact Pulse-Eight Licensing for more information. |
| 26 | * |
| 27 | * For more information contact: |
| 28 | * Pulse-Eight Licensing <license@pulse-eight.com> |
| 29 | * http://www.pulse-eight.com/ |
| 30 | * http://www.pulse-eight.net/ |
| 31 | */ |
| 32 | |
| 33 | #include "env.h" |
| 34 | #include "lib/platform/util/edid.h" |
| 35 | |
| 36 | #include "windows.h" |
| 37 | #include "setupapi.h" |
| 38 | #include "initguid.h" |
| 39 | #include "stdio.h" |
| 40 | |
| 41 | using namespace PLATFORM; |
| 42 | |
| 43 | static GUID MONITOR_GUID = { 0x4D36E96E, 0xE325, 0x11CE, { 0xBF, 0xC1, 0x08, 0x00, 0x2B, 0xE1, 0x03, 0x18 } }; |
| 44 | #define PA_MAX_REGENTRIES_TO_CHECK 1024 |
| 45 | |
| 46 | uint16_t GetPhysicalAddressFromDevice(IN HDEVINFO hDevHandle, IN PSP_DEVINFO_DATA deviceInfoData) |
| 47 | { |
| 48 | uint16_t iPA(0); |
| 49 | |
| 50 | HKEY hDevRegKey = SetupDiOpenDevRegKey(hDevHandle, deviceInfoData, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_ALL_ACCESS); |
| 51 | if (hDevRegKey) |
| 52 | { |
| 53 | CHAR regEntryName[128]; |
| 54 | DWORD regEntryNameLength(128); |
| 55 | DWORD type; |
| 56 | LONG retVal(ERROR_SUCCESS); |
| 57 | |
| 58 | for (LONG ptr = 0; iPA == 0 && retVal == ERROR_SUCCESS && ptr < PA_MAX_REGENTRIES_TO_CHECK; ptr++) |
| 59 | { |
| 60 | BYTE regEntryData[1024]; |
| 61 | DWORD regEntryDataSize = sizeof(regEntryData); |
| 62 | |
| 63 | retVal = RegEnumValue(hDevRegKey, ptr, ®EntryName[0], ®EntryNameLength, NULL, &type, regEntryData, ®EntryDataSize); |
| 64 | |
| 65 | if (retVal == ERROR_SUCCESS && !strcmp(regEntryName,"EDID")) |
| 66 | iPA = CEDIDParser::GetPhysicalAddressFromEDID(regEntryData, regEntryDataSize); |
| 67 | } |
| 68 | RegCloseKey(hDevRegKey); |
| 69 | } |
| 70 | |
| 71 | return iPA; |
| 72 | } |
| 73 | |
| 74 | uint16_t CEDIDParser::GetPhysicalAddress(void) |
| 75 | { |
| 76 | HDEVINFO hDevHandle; |
| 77 | uint16_t iPA(0); |
| 78 | SP_DEVINFO_DATA deviceInfoData; |
| 79 | |
| 80 | hDevHandle = SetupDiGetClassDevsEx(&MONITOR_GUID, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL); |
| 81 | if (!hDevHandle) |
| 82 | return iPA; |
| 83 | |
| 84 | for (int i=0; ERROR_NO_MORE_ITEMS != GetLastError(); i++) |
| 85 | { |
| 86 | memset(&deviceInfoData, 0, sizeof(SP_DEVINFO_DATA)); |
| 87 | deviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA); |
| 88 | |
| 89 | if (SetupDiEnumDeviceInfo(hDevHandle,i, &deviceInfoData)) |
| 90 | { |
| 91 | iPA = GetPhysicalAddressFromDevice(hDevHandle, &deviceInfoData); |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | return iPA; |
| 96 | } |