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/Foundation/Library/Dxe/EfiDriverLib/EfiGetConfigTable.c

@@ -0,0 +1,61 @@
+/*++
+
+Copyright (c) 2004 - 2007, 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:
+
+  EfiGetConfigTable.c
+
+Abstract:
+
+  Light weight lib to support EFI drivers.
+
+--*/
+
+#include "Tiano.h"
+#include "EfiDriverLib.h"
+
+EFI_STATUS
+EfiLibGetSystemConfigurationTable (
+  IN EFI_GUID *TableGuid,
+  OUT VOID **Table
+  )
+/*++
+
+Routine Description:
+
+  Get table from configuration table by name
+
+Arguments:
+
+  TableGuid       - Table name to search
+  
+  Table           - Pointer to the table caller wants
+
+Returns: 
+
+  EFI_NOT_FOUND   - Not found the table
+  
+  EFI_SUCCESS     - Found the table
+
+--*/
+{
+  UINTN Index;
+
+  *Table = NULL;
+  for (Index = 0; Index < gST->NumberOfTableEntries; Index++) {
+    if (EfiCompareGuid (TableGuid, &(gST->ConfigurationTable[Index].VendorGuid))) {
+      *Table = gST->ConfigurationTable[Index].VendorTable;
+      return EFI_SUCCESS;
+    }
+  }
+
+  return EFI_NOT_FOUND;
+}