audk/PcAtChipsetPkg/KbcResetDxe/Reset.c

55 lines
1.5 KiB
C

/** @file
Reset Architectural Protocol implementation
Copyright (c) 2006 - 2010, Intel Corporation. All rights reserved. <BR>
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.
**/
#include "Reset.h"
/**
Reset the system.
@param ResetType warm or cold
@param ResetStatus possible cause of reset
@param DataSize Size of ResetData in bytes
@param ResetData Optional Unicode string
**/
VOID
EFIAPI
KbcResetSystem (
IN EFI_RESET_TYPE ResetType,
IN EFI_STATUS ResetStatus,
IN UINTN DataSize,
IN VOID *ResetData OPTIONAL
)
{
UINT8 Data;
switch (ResetType) {
case EfiResetWarm:
case EfiResetCold:
case EfiResetShutdown:
Data = 0xfe;
IoWrite8 (0x64, Data);
break;
default:
return ;
}
//
// Given we should have reset getting here would be bad
//
ASSERT (FALSE);
}