EmbeddedPkg/Library/HalRuntimeServicesExampleLib/Reset.c

   1 /** @file
   2   Simple PC Port 0x92 reset driver
   3
   4   Copyright (c) 2007, Intel Corporation. All rights reserved.<BR>
   5   Portions copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
   6
   7   This program and the accompanying materials
   8   are licensed and made available under the terms and conditions of the BSD License
   9   which accompanies this distribution.  The full text of the license may be found at
  10   http://opensource.org/licenses/bsd-license.php
  11
  12   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  13   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  14
  15
  16 **/
  17
  18
  19
  20 VOID
  21 LibResetInitializeReset (
  22   VOID
  23   )
  24 {
  25 }
  26
  27 VOID
  28 LibResetVirtualAddressChangeEvent (
  29   VOID
  30   )
  31 {
  32 }
  33
  34
  35 VOID
  36 LibResetSystem (
  37   IN EFI_RESET_TYPE   ResetType,
  38   IN EFI_STATUS       ResetStatus,
  39   IN UINTN            DataSize,
  40   IN CHAR16           *ResetData OPTIONAL
  41   )
  42 {
  43   UINT8   Data;
  44
  45   switch (ResetType) {
  46   case EfiResetWarm:
  47   case EfiResetCold:
  48   case EfiResetShutdown:
  49     Data = IoRead8 (0x92);
  50     Data |= 1;
  51     IoWrite8 (0x92, Data);
  52     break;
  53
  54   default:
  55     return ;
  56   }
  57
  58   //
  59   // Given we should have reset getting here would be bad
  60   //
  61   ASSERT (FALSE);
  62 }
  63