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/*++
Copyright (c) 2004 - 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.
Module Name:
Io.c
Abstract:
Light weight lib functions that wrape IoRead (), IoWrite, MemRead (),
and MemWrite ().
--*/
#include "Tiano.h"
#include "EfiRuntimeLib.h"
UINT8
IoRead8 (
IN UINT64 Address
)
/*++
Routine Description:
Do a one byte IO read
Arguments:
Address - IO address to read
Returns:
Data read
--*/
{
UINT8 Buffer;
Buffer = 0;
EfiIoRead (EfiCpuIoWidthUint8, Address, 1, &Buffer);
return Buffer;
}
UINT16
IoRead16 (
IN UINT64 Address
)
/*++
Routine Description:
Do a two byte IO read
Arguments:
Address - IO address to read
Returns:
Data read
--*/
{
UINT16 Buffer;
Buffer = 0;
EfiIoRead (EfiCpuIoWidthUint16, Address, 1, &Buffer);
return Buffer;
}
UINT32
IoRead32 (
IN UINT64 Address
)
/*++
Routine Description:
Do a four byte IO read
Arguments:
Address - IO address to read
Returns:
Data read
--*/
{
UINT32 Buffer;
Buffer = 0;
EfiIoRead (EfiCpuIoWidthUint32, Address, 1, &Buffer);
return Buffer;
}
VOID
IoWrite8 (
IN UINT64 Address,
IN UINT8 Data
)
/*++
Routine Description:
Do a one byte IO write
Arguments:
Address - IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
{
EfiIoWrite (EfiCpuIoWidthUint8, Address, 1, &Data);
}
VOID
IoWrite16 (
IN UINT64 Address,
IN UINT16 Data
)
/*++
Routine Description:
Do a two byte IO write
Arguments:
Address - IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
{
EfiIoWrite (EfiCpuIoWidthUint16, Address, 1, &Data);
}
VOID
IoWrite32 (
IN UINT64 Address,
IN UINT32 Data
)
/*++
Routine Description:
Do a four byte IO write
Arguments:
Address - IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
{
EfiIoWrite (EfiCpuIoWidthUint32, Address, 1, &Data);
}
UINT8
MemRead8 (
IN UINT64 Address
)
/*++
Routine Description:
Do a one byte Memory mapped IO read
Arguments:
Address - Memory mapped IO address to read
Returns:
Data read
--*/
{
UINT8 Buffer;
Buffer = 0;
EfiMemRead (EfiCpuIoWidthUint8, Address, 1, &Buffer);
return Buffer;
}
UINT16
MemRead16 (
IN UINT64 Address
)
/*++
Routine Description:
Do a two byte Memory mapped IO read
Arguments:
Address - Memory mapped IO address to read
Returns:
Data read
--*/
{
UINT16 Buffer;
Buffer = 0;
EfiMemRead (EfiCpuIoWidthUint16, Address, 1, &Buffer);
return Buffer;
}
UINT32
MemRead32 (
IN UINT64 Address
)
/*++
Routine Description:
Do a four byte Memory mapped IO read
Arguments:
Address - Memory mapped IO address to read
Returns:
Data read
--*/
{
UINT32 Buffer;
Buffer = 0;
EfiMemRead (EfiCpuIoWidthUint32, Address, 1, &Buffer);
return Buffer;
}
UINT64
MemRead64 (
IN UINT64 Address
)
/*++
Routine Description:
Do a eight byte Memory mapped IO read
Arguments:
Address - Memory mapped IO address to read
Returns:
Data read
--*/
{
UINT64 Buffer;
Buffer = 0;
EfiMemRead (EfiCpuIoWidthUint64, Address, 1, &Buffer);
return Buffer;
}
VOID
MemWrite8 (
IN UINT64 Address,
IN UINT8 Data
)
/*++
Routine Description:
Do a one byte Memory mapped IO write
Arguments:
Address - Memory mapped IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
{
EfiMemWrite (EfiCpuIoWidthUint8, Address, 1, &Data);
}
VOID
MemWrite16 (
IN UINT64 Address,
IN UINT16 Data
)
/*++
Routine Description:
Do a two byte Memory mapped IO write
Arguments:
Address - Memory mapped IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
{
EfiMemWrite (EfiCpuIoWidthUint16, Address, 1, &Data);
}
VOID
MemWrite32 (
IN UINT64 Address,
IN UINT32 Data
)
/*++
Routine Description:
Do a four byte Memory mapped IO write
Arguments:
Address - Memory mapped IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
{
EfiMemWrite (EfiCpuIoWidthUint32, Address, 1, &Data);
}
VOID
MemWrite64 (
IN UINT64 Address,
IN UINT64 Data
)
/*++
Routine Description:
Do a eight byte Memory mapped IO write
Arguments:
Address - Memory mapped IO address to write
Data - Data to write to Address
Returns:
NONE
--*/
{
EfiMemWrite (EfiCpuIoWidthUint64, Address, 1, &Data);
}
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