audk/PcAtChipsetPkg/KbcResetDxe/Reset.c

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/*++
Copyright (c) 2006, Intel Corporation
All rights reserved. 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.
Module Name:
Reset.c
Abstract:
Reset Architectural Protocol implementation
--*/
#include "Reset.h"
VOID
EFIAPI
KbcResetSystem (
IN EFI_RESET_TYPE ResetType,
IN EFI_STATUS ResetStatus,
IN UINTN DataSize,
IN VOID *ResetData OPTIONAL
)
/*++
Routine Description:
Reset the system.
Arguments:
ResetType - warm or cold
ResetStatus - possible cause of reset
DataSize - Size of ResetData in bytes
ResetData - Optional Unicode string
For details, see efiapi.h
Returns:
Does not return if the reset takes place.
EFI_INVALID_PARAMETER If ResetType is invalid.
--*/
{
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);
}