src/lib/platform/nvidia/nv-edid.cpp

   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 "nv-edid.h"
  34
  35 using namespace PLATFORM;
  36
  37 uint16_t CNVEdidParser::GetPhysicalAddress(void)
  38 {
  39   uint16_t iPA(0);
  40
  41 #if !defined(__WINDOWS__)
  42   FILE *fp = fopen("/proc/acpi/video/NGFX/HDMI/EDID", "r");
  43
  44   if (fp)
  45   {
  46     char buf[4096];
  47     memset(buf, 0, sizeof(buf));
  48     int iPtr(0);
  49     char c(0);
  50     while (c != EOF)
  51     {
  52       c = fgetc(fp);
  53       if (c != EOF)
  54         buf[iPtr++] = c;
  55     }
  56
  57     iPA = CEDIDParser::GetPhysicalAddressFromEDID(buf, iPtr);
  58     fclose(fp);
  59   }
  60 #endif
  61
  62   return iPA;
  63 }