From 01a1a084e0181b02fb3370bdbaadab306fe094cb Mon Sep 17 00:00:00 2001
From: Michael Brehm <djp952@gmail.com>
Date: Sun, 13 Jan 2019 22:56:49 -0500
Subject: [PATCH] Check the system capabilities to support sleep states
 S1/S2/S3/S4 before reporing them as available

---
 xbmc/platform/win32/powermanagement/Win32PowerSyscall.cpp | 5 +++++
 xbmc/platform/win32/powermanagement/Win32PowerSyscall.h   | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/xbmc/platform/win32/powermanagement/Win32PowerSyscall.cpp b/xbmc/platform/win32/powermanagement/Win32PowerSyscall.cpp
index a423384d4ad5b..cf72ac48e8cf6 100644
--- a/xbmc/platform/win32/powermanagement/Win32PowerSyscall.cpp
+++ b/xbmc/platform/win32/powermanagement/Win32PowerSyscall.cpp
@@ -110,6 +110,7 @@ bool CWin32PowerStateWorker::PowerManagement(PowerState State)
 
 CWin32PowerSyscall::CWin32PowerSyscall()
 {
+  m_hascapabilities = GetPwrCapabilities(&m_capabilities);
   m_worker.Create();
 }
 
@@ -142,10 +143,14 @@ bool CWin32PowerSyscall::CanPowerdown()
 }
 bool CWin32PowerSyscall::CanSuspend()
 {
+  if (m_hascapabilities)
+    return (m_capabilities.SystemS1 == TRUE || m_capabilities.SystemS2 == TRUE || m_capabilities.SystemS3 == TRUE);
   return true;
 }
 bool CWin32PowerSyscall::CanHibernate()
 {
+  if (m_hascapabilities)
+    return (m_capabilities.SystemS4 == TRUE && m_capabilities.HiberFilePresent == TRUE);
   return true;
 }
 bool CWin32PowerSyscall::CanReboot()
diff --git a/xbmc/platform/win32/powermanagement/Win32PowerSyscall.h b/xbmc/platform/win32/powermanagement/Win32PowerSyscall.h
index cfea7ea5cadc3..8a992c60aaaf2 100644
--- a/xbmc/platform/win32/powermanagement/Win32PowerSyscall.h
+++ b/xbmc/platform/win32/powermanagement/Win32PowerSyscall.h
@@ -58,6 +58,8 @@ class CWin32PowerSyscall : public CAbstractPowerSyscall
   static bool IsSuspending() { return m_OnSuspend; }
 
 private:
+  BOOLEAN m_hascapabilities;
+  SYSTEM_POWER_CAPABILITIES m_capabilities;
   CWin32PowerStateWorker m_worker;
 
   static bool m_OnResume;