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200322e5 LOK |
1 | /* |
2 | * This file is part of the libCEC(R) library. | |
3 | * | |
4 | * libCEC(R) is Copyright (C) 2011-2012 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 | ||
2b44051c LOK |
33 | #include "env.h" |
34 | #include "lib/platform/util/edid.h" | |
200322e5 LOK |
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 } }; | |
c22efa98 | 44 | #define PA_MAX_REGENTRIES_TO_CHECK 1024 |
200322e5 LOK |
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; | |
c22efa98 | 56 | LONG retVal(ERROR_SUCCESS); |
200322e5 | 57 | |
c22efa98 | 58 | for (LONG ptr = 0; iPA == 0 && retVal == ERROR_SUCCESS && ptr < PA_MAX_REGENTRIES_TO_CHECK; ptr++) |
200322e5 LOK |
59 | { |
60 | BYTE regEntryData[1024]; | |
61 | DWORD regEntryDataSize = sizeof(regEntryData); | |
62 | ||
63 | retVal = RegEnumValue(hDevRegKey, ptr, ®EntryName[0], ®EntryNameLength, NULL, &type, regEntryData, ®EntryDataSize); | |
64 | ||
c22efa98 | 65 | if (retVal == ERROR_SUCCESS && !strcmp(regEntryName,"EDID")) |
200322e5 LOK |
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 | } |