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

   1 /*++
   2
   3 Copyright (c) 2004 - 2007, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13
  14   EfiGetConfigTable.c
  15
  16 Abstract:
  17
  18   Light weight lib to support EFI drivers.
  19
  20 --*/
  21
  22 #include "Tiano.h"
  23 #include "EfiDriverLib.h"
  24
  25 EFI_STATUS
  26 EfiLibGetSystemConfigurationTable (
  27   IN EFI_GUID *TableGuid,
  28   OUT VOID **Table
  29   )
  30 /*++
  31
  32 Routine Description:
  33
  34   Get table from configuration table by name
  35
  36 Arguments:
  37
  38   TableGuid       - Table name to search
  39
  40   Table           - Pointer to the table caller wants
  41
  42 Returns:
  43
  44   EFI_NOT_FOUND   - Not found the table
  45
  46   EFI_SUCCESS     - Found the table
  47
  48 --*/
  49 {
  50   UINTN Index;
  51
  52   *Table = NULL;
  53   for (Index = 0; Index < gST->NumberOfTableEntries; Index++) {
  54     if (EfiCompareGuid (TableGuid, &(gST->ConfigurationTable[Index].VendorGuid))) {
  55       *Table = gST->ConfigurationTable[Index].VendorTable;
  56       return EFI_SUCCESS;
  57     }
  58   }
  59
  60   return EFI_NOT_FOUND;
  61 }