d910a704f8
The EBC instruction set supports memory and MMIO access, but not I/O port access. Add EBC support to BaseIoLibIntrinsic that generates an ASSERT() if the IoReadXX()/IoWriteXX() APIs are used. This matches the implementation for other CPU types that do not support I/O port access. Cc: Liming Gao <liming.gao@intel.com> Cc: Ruiyu Ni <ruiyu.ni@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Reviewed-by: Liming Gao <liming.gao@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19234 6f19259b-4bc3-4df7-8a09-765794883524
172 lines
3.9 KiB
C
172 lines
3.9 KiB
C
/** @file
|
|
I/O Library for EBC.
|
|
|
|
EBC does not support port I/O. All APIs in this file ASSERT().
|
|
|
|
Copyright (c) 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 "BaseIoLibIntrinsicInternal.h"
|
|
|
|
/**
|
|
Reads an 8-bit I/O port.
|
|
|
|
Reads the 8-bit I/O port specified by Port. The 8-bit read value is returned.
|
|
This function must guarantee that all I/O read and write operations are
|
|
serialized.
|
|
|
|
If 8-bit I/O port operations are not supported, then ASSERT().
|
|
|
|
@param Port The I/O port to read.
|
|
|
|
@return The value read.
|
|
|
|
**/
|
|
UINT8
|
|
EFIAPI
|
|
IoRead8 (
|
|
IN UINTN Port
|
|
)
|
|
{
|
|
ASSERT (FALSE);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
Writes an 8-bit I/O port.
|
|
|
|
Writes the 8-bit I/O port specified by Port with the value specified by Value
|
|
and returns Value. This function must guarantee that all I/O read and write
|
|
operations are serialized.
|
|
|
|
If 8-bit I/O port operations are not supported, then ASSERT().
|
|
|
|
@param Port The I/O port to write.
|
|
@param Value The value to write to the I/O port.
|
|
|
|
@return The value written to the I/O port.
|
|
|
|
**/
|
|
UINT8
|
|
EFIAPI
|
|
IoWrite8 (
|
|
IN UINTN Port,
|
|
IN UINT8 Value
|
|
)
|
|
{
|
|
ASSERT (FALSE);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
Reads a 16-bit I/O port.
|
|
|
|
Reads the 16-bit I/O port specified by Port. The 16-bit read value is returned.
|
|
This function must guarantee that all I/O read and write operations are
|
|
serialized.
|
|
|
|
If 16-bit I/O port operations are not supported, then ASSERT().
|
|
If Port is not aligned on a 16-bit boundary, then ASSERT().
|
|
|
|
@param Port The I/O port to read.
|
|
|
|
@return The value read.
|
|
|
|
**/
|
|
UINT16
|
|
EFIAPI
|
|
IoRead16 (
|
|
IN UINTN Port
|
|
)
|
|
{
|
|
ASSERT (FALSE);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
Writes a 16-bit I/O port.
|
|
|
|
Writes the 16-bit I/O port specified by Port with the value specified by Value
|
|
and returns Value. This function must guarantee that all I/O read and write
|
|
operations are serialized.
|
|
|
|
If 16-bit I/O port operations are not supported, then ASSERT().
|
|
If Port is not aligned on a 16-bit boundary, then ASSERT().
|
|
|
|
@param Port The I/O port to write.
|
|
@param Value The value to write to the I/O port.
|
|
|
|
@return The value written to the I/O port.
|
|
|
|
**/
|
|
UINT16
|
|
EFIAPI
|
|
IoWrite16 (
|
|
IN UINTN Port,
|
|
IN UINT16 Value
|
|
)
|
|
{
|
|
ASSERT (FALSE);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
Reads a 32-bit I/O port.
|
|
|
|
Reads the 32-bit I/O port specified by Port. The 32-bit read value is returned.
|
|
This function must guarantee that all I/O read and write operations are
|
|
serialized.
|
|
|
|
If 32-bit I/O port operations are not supported, then ASSERT().
|
|
If Port is not aligned on a 32-bit boundary, then ASSERT().
|
|
|
|
@param Port The I/O port to read.
|
|
|
|
@return The value read.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
IoRead32 (
|
|
IN UINTN Port
|
|
)
|
|
{
|
|
ASSERT (FALSE);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
Writes a 32-bit I/O port.
|
|
|
|
Writes the 32-bit I/O port specified by Port with the value specified by Value
|
|
and returns Value. This function must guarantee that all I/O read and write
|
|
operations are serialized.
|
|
|
|
If 32-bit I/O port operations are not supported, then ASSERT().
|
|
If Port is not aligned on a 32-bit boundary, then ASSERT().
|
|
|
|
@param Port The I/O port to write.
|
|
@param Value The value to write to the I/O port.
|
|
|
|
@return The value written to the I/O port.
|
|
|
|
**/
|
|
UINT32
|
|
EFIAPI
|
|
IoWrite32 (
|
|
IN UINTN Port,
|
|
IN UINT32 Value
|
|
)
|
|
{
|
|
ASSERT (FALSE);
|
|
return 0;
|
|
}
|