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/** @file
SMM I/O access utility implementation file, for Ia32
Copyright (c) 1999 - 2015, 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 files
//
#include "Library/SmmIoLib.h"
/**
Do a one byte IO read
@param[in] Address IO address to read
@return Data read
**/
UINT8
SmmIoRead8 (
IN UINT16 Address
)
{
UINT8 Buffer;
ASSERT (mSmst);
mSmst->SmmIo.Io.Read (
&mSmst->SmmIo,
SMM_IO_UINT8,
Address,
1,
&Buffer
);
return Buffer;
}
/**
Do a one byte IO write
@param[in] Address IO address to write
@param[in] Data Data to write
**/
VOID
SmmIoWrite8 (
IN UINT16 Address,
IN UINT8 Data
)
{
ASSERT (mSmst);
mSmst->SmmIo.Io.Write (
&mSmst->SmmIo,
SMM_IO_UINT8,
Address,
1,
&Data
);
}
/**
Do a two byte IO read
@param[in] Address IO address to read
@return Data read
**/
UINT16
SmmIoRead16 (
IN UINT16 Address
)
{
UINT16 Buffer;
ASSERT (mSmst);
mSmst->SmmIo.Io.Read (
&mSmst->SmmIo,
SMM_IO_UINT16,
Address,
1,
&Buffer
);
return Buffer;
}
/**
Do a two byte IO write
@param[in] Address IO address to write
@param[in] Data Data to write
**/
VOID
SmmIoWrite16 (
IN UINT16 Address,
IN UINT16 Data
)
{
ASSERT (mSmst);
mSmst->SmmIo.Io.Write (
&mSmst->SmmIo,
SMM_IO_UINT16,
Address,
1,
&Data
);
}
/**
Do a four byte IO read
@param[in] Address IO address to read
@retval Data read
**/
UINT32
SmmIoRead32 (
IN UINT16 Address
)
{
UINT32 Buffer;
ASSERT (mSmst);
mSmst->SmmIo.Io.Read (
&mSmst->SmmIo,
SMM_IO_UINT32,
Address,
1,
&Buffer
);
return Buffer;
}
/**
Do a four byte IO write
@param[in] Address IO address to write
@param[in] Data Data to write
**/
VOID
SmmIoWrite32 (
IN UINT16 Address,
IN UINT32 Data
)
{
ASSERT (mSmst);
mSmst->SmmIo.Io.Write (
&mSmst->SmmIo,
SMM_IO_UINT32,
Address,
1,
&Data
);
}
/**
Do a one byte Memory write
@param[in] Dest Memory address to write
@param[in] Data Data to write
**/
VOID
SmmMemWrite8 (
IN UINT64 Dest,
IN UINT8 Data
)
{
mSmst->SmmIo.Mem.Write (
&mSmst->SmmIo,
SMM_IO_UINT8,
Dest,
1,
&Data
);
return ;
}
/**
Do a one byte Memory read
@param[in] Dest Memory address to read
@Return Data read
**/
UINT8
SmmMemRead8 (
IN UINT64 Dest
)
{
UINT8 Data;
mSmst->SmmIo.Mem.Read (
&mSmst->SmmIo,
SMM_IO_UINT8,
Dest,
1,
&Data
);
return Data;
}
/**
Do a two bytes Memory write
@param[in] Dest Memory address to write
@param[in] Data Data to write
**/
VOID
SmmMemWrite16 (
IN UINT64 Dest,
IN UINT16 Data
)
{
mSmst->SmmIo.Mem.Write (
&mSmst->SmmIo,
SMM_IO_UINT16,
Dest,
1,
&Data
);
return ;
}
/**
Do a two bytes Memory read
@param[in] Dest Memory address to read
@return Data read
**/
UINT16
SmmMemRead16 (
IN UINT64 Dest
)
{
UINT16 Data;
mSmst->SmmIo.Mem.Read (
&mSmst->SmmIo,
SMM_IO_UINT16,
Dest,
1,
&Data
);
return Data;
}
/**
Do a four bytes Memory write
@param[in] Dest Memory address to write
@param[in] Data Data to write
**/
VOID
SmmMemWrite32 (
IN UINT64 Dest,
IN UINT32 Data
)
{
mSmst->SmmIo.Mem.Write (
&mSmst->SmmIo,
SMM_IO_UINT32,
Dest,
1,
&Data
);
return ;
}
/**
Do a four bytes Memory read
@param[in] Dest Memory address to read
@return Data read
**/
UINT32
SmmMemRead32 (
IN UINT64 Dest
)
{
UINT32 Data;
mSmst->SmmIo.Mem.Read (
&mSmst->SmmIo,
SMM_IO_UINT32,
Dest,
1,
&Data
);
return Data;
}
/**
Do a four bytes Memory read, then AND with Data, then write back to the same address
@param[in] Dest Memory address to write
@param[in] Data Data to do AND
**/
VOID
SmmMemAnd32 (
IN UINT64 Dest,
IN UINT32 Data
)
{
UINT32 Data_And;
mSmst->SmmIo.Mem.Read (
&mSmst->SmmIo,
SMM_IO_UINT32,
Dest,
1,
&Data_And
);
Data_And&=Data;
mSmst->SmmIo.Mem.Write (
&mSmst->SmmIo,
SMM_IO_UINT32,
Dest,
1,
&Data_And
);
return ;
}
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