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/** @file
Copyright (c) 2004 - 2014, 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 that 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:
Module Name:
LpcSio.c
Abstract: Sio implementation
Revision History
--*/
#include "LpcDriver.h"
#include <Library/S3BootScriptLib.h>
VOID
WriteRegister (
IN UINT8 Index,
IN UINT8 Data
);
typedef struct {
UINT8 Register;
UINT8 Value;
} EFI_SIO_TABLE;
EFI_SIO_TABLE mSioTable[] = {
//
// Init keyboard controller
//
{ REG_LOGICAL_DEVICE, SIO_KEYBOARD },
{ BASE_ADDRESS_HIGH, 0x00 },
{ BASE_ADDRESS_LOW, 0x60 },
{ BASE_ADDRESS_HIGH2, 0x00 },
{ BASE_ADDRESS_LOW2, 0x64 },
{ PRIMARY_INTERRUPT_SELECT, 0x01 },
{ ACTIVATE, 0x1 },
//
// Init Mouse controller
//
{ REG_LOGICAL_DEVICE, SIO_MOUSE },
{ BASE_ADDRESS_HIGH, 0x00 },
{ BASE_ADDRESS_LOW, 0x60 },
{ BASE_ADDRESS_HIGH2, 0x00 },
{ BASE_ADDRESS_LOW2, 0x64 },
{ PRIMARY_INTERRUPT_SELECT, 0x0c },
{ ACTIVATE, 0x1 },
{ REG_LOGICAL_DEVICE, SIO_COM },
{ BASE_ADDRESS_HIGH, 0x03 },
{ BASE_ADDRESS_LOW, 0xf8 },
{ PRIMARY_INTERRUPT_SELECT, 0x04 },
{ ACTIVATE, 0x1 },
};
VOID
LPCWPCE791SetDefault ()
{
UINT8 Index;
for (Index = 0; Index < sizeof(mSioTable)/sizeof(EFI_SIO_TABLE); Index++) {
WriteRegisterAndSaveToScript (mSioTable[Index].Register, mSioTable[Index].Value);
}
return;
}
VOID
DisableLogicalDevice (
UINT8 DeviceId
)
{
WriteRegisterAndSaveToScript (REG_LOGICAL_DEVICE, DeviceId);
WriteRegisterAndSaveToScript (ACTIVATE, 0);
WriteRegisterAndSaveToScript (BASE_ADDRESS_HIGH, 0);
WriteRegisterAndSaveToScript (BASE_ADDRESS_LOW, 0);
return;
}
VOID
WriteRegister (
IN UINT8 Index,
IN UINT8 Data
)
{
LpcIoWrite8(CONFIG_PORT, Index);
LpcIoWrite8(DATA_PORT, Data);
return;
}
VOID
WriteRegisterAndSaveToScript (
IN UINT8 Index,
IN UINT8 Data
)
{
UINT8 Buffer[2];
LpcIoWrite8(CONFIG_PORT, Index);
LpcIoWrite8(DATA_PORT, Data);
Buffer[0] = Index;
Buffer[1] = Data;
S3BootScriptSaveIoWrite (
EfiBootScriptWidthUint8,
INDEX_PORT,
2,
Buffer
);
return;
}
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