Add in the 1st version of ECP.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2832 6f19259b-4bc3-4df7-8a09-765794883524

EdkCompatibilityPkg/Sample/Library/Dxe/WinNt/WinNtLib.c

@@ -0,0 +1,75 @@
+/*++
+
+Copyright (c) 2004, Intel Corporation                                                         
+All rights reserved. This program and the accompanying materials                          
+are licensed and made available under the terms and conditions of the BSD License         
+which accompanies this distribution.  The full text of the license may be found at        
+http://opensource.org/licenses/bsd-license.php                                            
+                                                                                          
+THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
+WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             
+
+Module Name:
+
+  WinNtLib.c
+
+Abstract:
+
+  Setup gWinNt global 
+
+--*/
+
+#include "Efi2WinNT.h"
+#include "EfiWinNtLib.h"
+#include "EfiDriverLib.h"
+#include "EfiHobLib.h"
+#include EFI_GUID_DEFINITION (Hob)
+
+EFI_WIN_NT_THUNK_PROTOCOL *gWinNt;
+
+EFI_GUID                  mEfiHobListGuid = EFI_HOB_LIST_GUID;
+
+EFI_STATUS
+EfiInitializeWinNtDriverLib (
+  IN EFI_HANDLE           ImageHandle,
+  IN EFI_SYSTEM_TABLE     *SystemTable
+  )
+/*++
+
+Routine Description:
+
+  Intialize gWinNt and initialize debug console. 
+
+Arguments:
+
+  (Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)
+
+Returns: 
+
+  None
+
+--*/
+// TODO:    ImageHandle - add argument and description to function comment
+// TODO:    SystemTable - add argument and description to function comment
+// TODO:    EFI_NOT_FOUND - add return value to function comment
+// TODO:    EFI_NOT_FOUND - add return value to function comment
+// TODO:    EFI_SUCCESS - add return value to function comment
+{
+  EFI_STATUS  Status;
+  VOID        *HobList;
+  VOID        *Pointer;
+
+  Status = EfiLibGetSystemConfigurationTable (&mEfiHobListGuid, &HobList);
+  if (EFI_ERROR (Status)) {
+    return EFI_NOT_FOUND;
+  }
+
+  ASSERT (NULL != HobList);
+  Status = GetNextGuidHob (&HobList, &gEfiWinNtThunkProtocolGuid, &Pointer, NULL);
+  if (EFI_ERROR (Status)) {
+    return EFI_NOT_FOUND;
+  }
+
+  gWinNt = (VOID *) (*(UINTN *) (Pointer));
+  return EFI_SUCCESS;
+}