Porting Duet module from EDKI to EDKII

[mirror_edk2.git] / DuetPkg / KbcResetDxe / Reset.c

/*++\r
\r
Copyright (c) 2006, Intel Corporation                                                         \r
All rights reserved. This program and the accompanying materials                          \r
are licensed and made available under the terms and conditions of the BSD License         \r
which accompanies this distribution.  The full text of the license may be found at        \r
http://opensource.org/licenses/bsd-license.php                                            \r
                                                                                          \r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
\r
Module Name:\r
  Reset.c\r
\r
Abstract:\r
\r
  Reset Architectural Protocol implementation\r
\r
--*/\r
\r
#include "Reset.h"\r
\r
VOID\r
EFIAPI\r
KbcResetSystem (\r
  IN EFI_RESET_TYPE   ResetType,\r
  IN EFI_STATUS       ResetStatus,\r
  IN UINTN            DataSize,\r
  IN CHAR16           *ResetData OPTIONAL\r
  )\r
/*++\r
\r
Routine Description:\r
\r
  Reset the system.\r
\r
Arguments:\r
  \r
    ResetType - warm or cold\r
    ResetStatus - possible cause of reset\r
    DataSize - Size of ResetData in bytes\r
    ResetData - Optional Unicode string\r
    For details, see efiapi.h\r
\r
Returns:\r
  Does not return if the reset takes place.\r
  EFI_INVALID_PARAMETER   If ResetType is invalid.\r
\r
--*/\r
{\r
  UINT8   Data;\r
\r
  switch (ResetType) {\r
  case EfiResetWarm:\r
  case EfiResetCold:\r
  case EfiResetShutdown:\r
    Data = 0xfe;\r
    IoWrite8 (0x64, Data);\r
    break;\r
\r
  default:\r
    return ;\r
  }\r
\r
  //\r
  // Given we should have reset getting here would be bad\r
  //\r
  ASSERT (FALSE);\r
}\r
\r