PcAtChipsetPkg/KbcResetDxe/ResetEntry.c

   1 /** @file
   2   Driver entry for KbcReset driver.
   3
   4 Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved. <BR>
   5 This program and the accompanying materials
   6 are licensed and made available under the terms and conditions of the BSD License
   7 which accompanies this distribution.  The full text of the license may be found at
   8 http://opensource.org/licenses/bsd-license.php
   9
  10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12 **/
  13
  14 #include "Reset.h"
  15
  16 //
  17 // The handle onto which the Reset Architectural Protocol is installed
  18 //
  19 EFI_HANDLE  mResetHandle = NULL;
  20
  21
  22 /**
  23   Initialize the state information for the Reset Architectural Protocol
  24
  25   @param ImageHandle     Handle of the loaded driver
  26   @param SystemTable     Pointer to the System Table
  27
  28   @retval EFI_SUCCESS           Thread can be successfully created
  29   @retval EFI_OUT_OF_RESOURCES  Cannot allocate protocol data structure
  30   @retval EFI_DEVICE_ERROR      Cannot create the timer service
  31
  32 **/
  33 EFI_STATUS
  34 EFIAPI
  35 InitializeReset (
  36   IN EFI_HANDLE        ImageHandle,
  37   IN EFI_SYSTEM_TABLE  *SystemTable
  38   )
  39 {
  40   EFI_STATUS  Status;
  41
  42   //
  43   // Make sure the Reset Architectural Protocol is not already installed in the system
  44   //
  45   ASSERT_PROTOCOL_ALREADY_INSTALLED (NULL, &gEfiResetArchProtocolGuid);
  46
  47   //
  48   // Hook the runtime service table
  49   //
  50   SystemTable->RuntimeServices->ResetSystem = KbcResetSystem;
  51
  52   //
  53   // Now install the Reset RT AP on a new handle
  54   //
  55   Status = gBS->InstallMultipleProtocolInterfaces (
  56                   &mResetHandle,
  57                   &gEfiResetArchProtocolGuid,
  58                   NULL,
  59                   NULL
  60                   );
  61   ASSERT_EFI_ERROR (Status);
  62
  63   return Status;
  64 }