xbmc/windowing/osx/CocoaDPMSSupport.cpp

   1 /*
   2  *  Copyright (C) 2009-2018 Team Kodi
   3  *  This file is part of Kodi - https://kodi.tv
   4  *
   5  *  SPDX-License-Identifier: GPL-2.0-or-later
   6  *  See LICENSES/README.md for more information.
   7  */
   8
   9 #include "CocoaDPMSSupport.h"
  10
  11 #include "ServiceBroker.h"
  12
  13 #include <CoreFoundation/CFNumber.h>
  14 #include <IOKit/IOKitLib.h>
  15
  16 CCocoaDPMSSupport::CCocoaDPMSSupport()
  17 {
  18   m_supportedModes.push_back(OFF);
  19   m_supportedModes.push_back(STANDBY);
  20 }
  21
  22 bool CCocoaDPMSSupport::EnablePowerSaving(PowerSavingMode mode)
  23 {
  24   // http://lists.apple.com/archives/Cocoa-dev/2007/Nov/msg00267.html
  25   // This is an unsupported system call that might kernel panic on PPC boxes
  26   // The reported OSX-PPC panic is unverified so we are going to enable this until
  27   // we find out which OSX-PPC boxes have problems, then add detect/disable for those boxes.
  28   io_registry_entry_t r = IORegistryEntryFromPath(kIOMasterPortDefault, "IOService:/IOResources/IODisplayWrangler");
  29   if (!r)
  30     return false;
  31
  32   switch (mode)
  33   {
  34   case OFF:
  35   case STANDBY:
  36     return (IORegistryEntrySetCFProperty(r, CFSTR("IORequestIdle"), kCFBooleanTrue) == 0);
  37   default:
  38     return false;
  39   }
  40 }
  41
  42 bool CCocoaDPMSSupport::DisablePowerSaving()
  43 {
  44   // http://lists.apple.com/archives/Cocoa-dev/2007/Nov/msg00267.html
  45   // This is an unsupported system call that might kernel panic on PPC boxes
  46   // The reported OSX-PPC panic is unverified so we are going to enable this until
  47   // we find out which OSX-PPC boxes have problems, then add detect/disable for those boxes.
  48   io_registry_entry_t r = IORegistryEntryFromPath(kIOMasterPortDefault, "IOService:/IOResources/IODisplayWrangler");
  49   if (!r)
  50     return false;
  51
  52   // Turn display on
  53   return (IORegistryEntrySetCFProperty(r, CFSTR("IORequestIdle"), kCFBooleanFalse) == 0);
  54 }