bump version numbers to 1.7.0 and updated changelog
[deb_libcec.git] / src / lib / platform / windows / os-edid.cpp
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200322e5
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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
33#include "../util/edid.h"
34
35#include "windows.h"
36#include "setupapi.h"
37#include "initguid.h"
38#include "stdio.h"
39
40using namespace PLATFORM;
41
42static GUID MONITOR_GUID = { 0x4D36E96E, 0xE325, 0x11CE, { 0xBF, 0xC1, 0x08, 0x00, 0x2B, 0xE1, 0x03, 0x18 } };
43
44uint16_t GetPhysicalAddressFromDevice(IN HDEVINFO hDevHandle, IN PSP_DEVINFO_DATA deviceInfoData)
45{
46 uint16_t iPA(0);
47
48 HKEY hDevRegKey = SetupDiOpenDevRegKey(hDevHandle, deviceInfoData, DICS_FLAG_GLOBAL, 0, DIREG_DEV, KEY_ALL_ACCESS);
49 if (hDevRegKey)
50 {
51 CHAR regEntryName[128];
52 DWORD regEntryNameLength(128);
53 DWORD type;
54 LONG retVal(0);
55
56 for (LONG ptr = 0; iPA == 0 && retVal != ERROR_NO_MORE_ITEMS; ptr++)
57 {
58 BYTE regEntryData[1024];
59 DWORD regEntryDataSize = sizeof(regEntryData);
60
61 retVal = RegEnumValue(hDevRegKey, ptr, &regEntryName[0], &regEntryNameLength, NULL, &type, regEntryData, &regEntryDataSize);
62
63 if (retVal == 0 && !strcmp(regEntryName,"EDID"))
64 iPA = CEDIDParser::GetPhysicalAddressFromEDID(regEntryData, regEntryDataSize);
65 }
66 RegCloseKey(hDevRegKey);
67 }
68
69 return iPA;
70}
71
72uint16_t CEDIDParser::GetPhysicalAddress(void)
73{
74 HDEVINFO hDevHandle;
75 uint16_t iPA(0);
76 SP_DEVINFO_DATA deviceInfoData;
77
78 hDevHandle = SetupDiGetClassDevsEx(&MONITOR_GUID, NULL, NULL, DIGCF_PRESENT, NULL, NULL, NULL);
79 if (!hDevHandle)
80 return iPA;
81
82 for (int i=0; ERROR_NO_MORE_ITEMS != GetLastError(); i++)
83 {
84 memset(&deviceInfoData, 0, sizeof(SP_DEVINFO_DATA));
85 deviceInfoData.cbSize = sizeof(SP_DEVINFO_DATA);
86
87 if (SetupDiEnumDeviceInfo(hDevHandle,i, &deviceInfoData))
88 {
89 iPA = GetPhysicalAddressFromDevice(hDevHandle, &deviceInfoData);
90 }
91 }
92
93 return iPA;
94}