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Add an IO Lib instance based on CPU IO2 Protocol.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10383 6f19259b-4bc3-4df7-8a09-765794883524
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rsun3 2010-04-21 02:06:55 +00:00
parent d4a622c488
commit ba9f835144
6 changed files with 3465 additions and 0 deletions
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116
MdePkg/Library/DxeIoLibCpuIo2/DxeCpuIo2LibInternal.h Normal file
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/** @file
Internal include file of DXE CPU IO2 Library.
Copyright (c) 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.
**/
#ifndef _DXE_CPUIO2_LIB_INTERNAL_H_
#define _DXE_CPUIO2_LIB_INTERNAL_H_
#include <PiDxe.h>
#include <Protocol/CpuIo2.h>
#include <Library/IoLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseLib.h>
/**
Reads registers in the EFI CPU I/O space.
Reads the I/O port specified by Port with registers width specified by Width.
The read value is returned. If such operations are not supported, then ASSERT().
This function must guarantee that all I/O read and write operations are serialized.
@param Port The base address of the I/O operation.
The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation.
@return Data read from registers in the EFI CPU I/O space.
**/
UINT64
EFIAPI
IoReadWorker (
IN UINTN Port,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width
);
/**
Writes registers in the EFI CPU I/O space.
Writes the I/O port specified by Port with registers width and value specified by Width
and Data respectively. Data is returned. If such operations are not supported, then ASSERT().
This function must guarantee that all I/O read and write operations are serialized.
@param Port The base address of the I/O operation.
The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation.
@param Data The value to write to the I/O port.
@return The paramter of Data.
**/
UINT64
EFIAPI
IoWriteWorker (
IN UINTN Port,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Data
);
/**
Reads memory-mapped registers in the EFI system memory space.
Reads the MMIO registers specified by Address with registers width specified by Width.
The read value is returned. If such operations are not supported, then ASSERT().
This function must guarantee that all MMIO read and write operations are serialized.
@param Address The MMIO register to read.
The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation.
@return Data read from registers in the EFI system memory space.
**/
UINT64
EFIAPI
MmioReadWorker (
IN UINTN Address,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width
);
/**
Writes memory-mapped registers in the EFI system memory space.
Writes the MMIO registers specified by Address with registers width and value specified by Width
and Data respectively. Data is returned. If such operations are not supported, then ASSERT().
This function must guarantee that all MMIO read and write operations are serialized.
@param Address The MMIO register to read.
The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation.
@param Data The value to write to the I/O port.
@return Data read from registers in the EFI system memory space.
**/
UINT64
EFIAPI
MmioWriteWorker (
IN UINTN Address,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Data
);
#endif

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MdePkg/Library/DxeIoLibCpuIo2/DxeIoLibCpuIo2.inf Normal file
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## @file
# I/O Library instance based on EFI_CPU_IO2_PROTOCOL.
#
# I/O Library implementation that uses the CPU I/O2 Protocol for I/O and MMIO operations.
#
# Copyright (c) 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.
#
#
##
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = DxeIoLibCpuIo2
FILE_GUID = 33D33BF3-349E-4768-9459-836A9F7558FB
MODULE_TYPE = DXE_DRIVER
VERSION_STRING = 1.0
LIBRARY_CLASS = IoLib|DXE_DRIVER DXE_SAL_DRIVER
CONSTRUCTOR = IoLibConstructor
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
[Sources]
IoLibMmioBuffer.c
DxeCpuIo2LibInternal.h
IoHighLevel.c
IoLib.c
[Packages]
MdePkg/MdePkg.dec
[LibraryClasses]
BaseLib
DebugLib
UefiBootServicesTableLib
[Protocols]
gEfiCpuIo2ProtocolGuid ## CONSUMES
[Depex]
gEfiCpuIo2ProtocolGuid

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MdePkg/Library/DxeIoLibCpuIo2/IoHighLevel.c Normal file
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MdePkg/Library/DxeIoLibCpuIo2/IoLib.c Normal file
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/** @file
I/O Library instance based on EFI_CPU_IO2_PROTOCOL.
Copyright (c) 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.
**/
#include "DxeCpuIo2LibInternal.h"
//
// Globle varible to cache pointer to CpuIo2 protocol.
//
EFI_CPU_IO2_PROTOCOL *mCpuIo = NULL;
/**
The constructor function caches the pointer to CpuIo2 protocol.
The constructor function locates CpuIo2 protocol from protocol database.
It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
**/
EFI_STATUS
EFIAPI
IoLibConstructor (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
Status = gBS->LocateProtocol (&gEfiCpuIo2ProtocolGuid, NULL, (VOID **) &mCpuIo);
ASSERT_EFI_ERROR (Status);
return Status;
}
/**
Reads registers in the EFI CPU I/O space.
Reads the I/O port specified by Port with registers width specified by Width.
The read value is returned. If such operations are not supported, then ASSERT().
This function must guarantee that all I/O read and write operations are serialized.
@param Port The base address of the I/O operation.
The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation.
@return Data read from registers in the EFI CPU I/O space.
**/
UINT64
EFIAPI
IoReadWorker (
IN UINTN Port,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width
)
{
EFI_STATUS Status;
UINT64 Data;
Status = mCpuIo->Io.Read (mCpuIo, Width, Port, 1, &Data);
ASSERT_EFI_ERROR (Status);
return Data;
}
/**
Writes registers in the EFI CPU I/O space.
Writes the I/O port specified by Port with registers width and value specified by Width
and Data respectively. Data is returned. If such operations are not supported, then ASSERT().
This function must guarantee that all I/O read and write operations are serialized.
@param Port The base address of the I/O operation.
The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation.
@param Data The value to write to the I/O port.
@return The paramter of Data.
**/
UINT64
EFIAPI
IoWriteWorker (
IN UINTN Port,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Data
)
{
EFI_STATUS Status;
Status = mCpuIo->Io.Write (mCpuIo, Width, Port, 1, &Data);
ASSERT_EFI_ERROR (Status);
return Data;
}
/**
Reads memory-mapped registers in the EFI system memory space.
Reads the MMIO registers specified by Address with registers width specified by Width.
The read value is returned. If such operations are not supported, then ASSERT().
This function must guarantee that all MMIO read and write operations are serialized.
@param Address The MMIO register to read.
The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation.
@return Data read from registers in the EFI system memory space.
**/
UINT64
EFIAPI
MmioReadWorker (
IN UINTN Address,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width
)
{
EFI_STATUS Status;
UINT64 Data;
Status = mCpuIo->Mem.Read (mCpuIo, Width, Address, 1, &Data);
ASSERT_EFI_ERROR (Status);
return Data;
}
/**
Writes memory-mapped registers in the EFI system memory space.
Writes the MMIO registers specified by Address with registers width and value specified by Width
and Data respectively. Data is returned. If such operations are not supported, then ASSERT().
This function must guarantee that all MMIO read and write operations are serialized.
@param Address The MMIO register to read.
The caller is responsible for aligning the Address if required.
@param Width The width of the I/O operation.
@param Data The value to write to the I/O port.
@return Data read from registers in the EFI system memory space.
**/
UINT64
EFIAPI
MmioWriteWorker (
IN UINTN Address,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Data
)
{
EFI_STATUS Status;
Status = mCpuIo->Mem.Write (mCpuIo, Width, Address, 1, &Data);
ASSERT_EFI_ERROR (Status);
return Data;
}
/**
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
)
{
return (UINT8)IoReadWorker (Port, EfiCpuIoWidthUint8);
}
/**
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 the I/O port.
**/
UINT8
EFIAPI
IoWrite8 (
IN UINTN Port,
IN UINT8 Value
)
{
return (UINT8)IoWriteWorker (Port, EfiCpuIoWidthUint8, Value);
}
/**
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 Port is not aligned on a 16-bit boundary, then ASSERT().
If 16-bit I/O port operations are not supported, then ASSERT().
@param Port The I/O port to read.
@return The value read.
**/
UINT16
EFIAPI
IoRead16 (
IN UINTN Port
)
{
//
// Make sure Port is aligned on a 16-bit boundary.
//
ASSERT ((Port & 1) == 0);
return (UINT16)IoReadWorker (Port, EfiCpuIoWidthUint16);
}
/**
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 Port is not aligned on a 16-bit boundary, then ASSERT().
If 16-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 the I/O port.
**/
UINT16
EFIAPI
IoWrite16 (
IN UINTN Port,
IN UINT16 Value
)
{
//
// Make sure Port is aligned on a 16-bit boundary.
//
ASSERT ((Port & 1) == 0);
return (UINT16)IoWriteWorker (Port, EfiCpuIoWidthUint16, Value);
}
/**
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 Port is not aligned on a 32-bit boundary, then ASSERT().
If 32-bit I/O port operations are not supported, then ASSERT().
@param Port The I/O port to read.
@return The value read.
**/
UINT32
EFIAPI
IoRead32 (
IN UINTN Port
)
{
//
// Make sure Port is aligned on a 32-bit boundary.
//
ASSERT ((Port & 3) == 0);
return (UINT32)IoReadWorker (Port, EfiCpuIoWidthUint32);
}
/**
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 Port is not aligned on a 32-bit boundary, then ASSERT().
If 32-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 the I/O port.
**/
UINT32
EFIAPI
IoWrite32 (
IN UINTN Port,
IN UINT32 Value
)
{
//
// Make sure Port is aligned on a 32-bit boundary.
//
ASSERT ((Port & 3) == 0);
return (UINT32)IoWriteWorker (Port, EfiCpuIoWidthUint32, Value);
}
/**
Reads a 64-bit I/O port.
Reads the 64-bit I/O port specified by Port. The 64-bit read value is returned.
This function must guarantee that all I/O read and write operations are
serialized.
If Port is not aligned on a 64-bit boundary, then ASSERT().
If 64-bit I/O port operations are not supported, then ASSERT().
@param Port The I/O port to read.
@return The value read.
**/
UINT64
EFIAPI
IoRead64 (
IN UINTN Port
)
{
//
// Make sure Port is aligned on a 64-bit boundary.
//
ASSERT ((Port & 7) == 0);
return IoReadWorker (Port, EfiCpuIoWidthUint64);
}
/**
Writes a 64-bit I/O port.
Writes the 64-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 Port is not aligned on a 64-bit boundary, then ASSERT().
If 64-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 the I/O port.
**/
UINT64
EFIAPI
IoWrite64 (
IN UINTN Port,
IN UINT64 Value
)
{
//
// Make sure Port is aligned on a 64-bit boundary.
//
ASSERT ((Port & 7) == 0);
return IoWriteWorker (Port, EfiCpuIoWidthUint64, Value);
}
/**
Reads an 8-bit MMIO register.
Reads the 8-bit MMIO register specified by Address. The 8-bit read value is
returned. This function must guarantee that all MMIO read and write
operations are serialized.
If 8-bit MMIO register operations are not supported, then ASSERT().
@param Address The MMIO register to read.
@return The value read.
**/
UINT8
EFIAPI
MmioRead8 (
IN UINTN Address
)
{
return (UINT8)MmioReadWorker (Address, EfiCpuIoWidthUint8);
}
/**
Writes an 8-bit MMIO register.
Writes the 8-bit MMIO register specified by Address with the value specified
by Value and returns Value. This function must guarantee that all MMIO read
and write operations are serialized.
If 8-bit MMIO register operations are not supported, then ASSERT().
@param Address The MMIO register to write.
@param Value The value to write to the MMIO register.
**/
UINT8
EFIAPI
MmioWrite8 (
IN UINTN Address,
IN UINT8 Value
)
{
return (UINT8)MmioWriteWorker (Address, EfiCpuIoWidthUint8, Value);
}
/**
Reads a 16-bit MMIO register.
Reads the 16-bit MMIO register specified by Address. The 16-bit read value is
returned. This function must guarantee that all MMIO read and write
operations are serialized.
If Address is not aligned on a 16-bit boundary, then ASSERT().
If 16-bit MMIO register operations are not supported, then ASSERT().
@param Address The MMIO register to read.
@return The value read.
**/
UINT16
EFIAPI
MmioRead16 (
IN UINTN Address
)
{
//
// Make sure Address is aligned on a 16-bit boundary.
//
ASSERT ((Address & 1) == 0);
return (UINT16)MmioReadWorker (Address, EfiCpuIoWidthUint16);
}
/**
Writes a 16-bit MMIO register.
Writes the 16-bit MMIO register specified by Address with the value specified
by Value and returns Value. This function must guarantee that all MMIO read
and write operations are serialized.
If Address is not aligned on a 16-bit boundary, then ASSERT().
If 16-bit MMIO register operations are not supported, then ASSERT().
@param Address The MMIO register to write.
@param Value The value to write to the MMIO register.
**/
UINT16
EFIAPI
MmioWrite16 (
IN UINTN Address,
IN UINT16 Value
)
{
//
// Make sure Address is aligned on a 16-bit boundary.
//
ASSERT ((Address & 1) == 0);
return (UINT16)MmioWriteWorker (Address, EfiCpuIoWidthUint16, Value);
}
/**
Reads a 32-bit MMIO register.
Reads the 32-bit MMIO register specified by Address. The 32-bit read value is
returned. This function must guarantee that all MMIO read and write
operations are serialized.
If Address is not aligned on a 32-bit boundary, then ASSERT().
If 32-bit MMIO register operations are not supported, then ASSERT().
@param Address The MMIO register to read.
@return The value read.
**/
UINT32
EFIAPI
MmioRead32 (
IN UINTN Address
)
{
//
// Make sure Address is aligned on a 32-bit boundary.
//
ASSERT ((Address & 3) == 0);
return (UINT32)MmioReadWorker (Address, EfiCpuIoWidthUint32);
}
/**
Writes a 32-bit MMIO register.
Writes the 32-bit MMIO register specified by Address with the value specified
by Value and returns Value. This function must guarantee that all MMIO read
and write operations are serialized.
If Address is not aligned on a 32-bit boundary, then ASSERT().
If 32-bit MMIO register operations are not supported, then ASSERT().
@param Address The MMIO register to write.
@param Value The value to write to the MMIO register.
**/
UINT32
EFIAPI
MmioWrite32 (
IN UINTN Address,
IN UINT32 Value
)
{
//
// Make sure Address is aligned on a 32-bit boundary.
//
ASSERT ((Address & 3) == 0);
return (UINT32)MmioWriteWorker (Address, EfiCpuIoWidthUint32, Value);
}
/**
Reads a 64-bit MMIO register.
Reads the 64-bit MMIO register specified by Address. The 64-bit read value is
returned. This function must guarantee that all MMIO read and write
operations are serialized.
If Address is not aligned on a 64-bit boundary, then ASSERT().
If 64-bit MMIO register operations are not supported, then ASSERT().
@param Address The MMIO register to read.
@return The value read.
**/
UINT64
EFIAPI
MmioRead64 (
IN UINTN Address
)
{
//
// Make sure Address is aligned on a 64-bit boundary.
//
ASSERT ((Address & 7) == 0);
return (UINT64)MmioReadWorker (Address, EfiCpuIoWidthUint64);
}
/**
Writes a 64-bit MMIO register.
Writes the 64-bit MMIO register specified by Address with the value specified
by Value and returns Value. This function must guarantee that all MMIO read
and write operations are serialized.
If Address is not aligned on a 64-bit boundary, then ASSERT().
If 64-bit MMIO register operations are not supported, then ASSERT().
@param Address The MMIO register to write.
@param Value The value to write to the MMIO register.
**/
UINT64
EFIAPI
MmioWrite64 (
IN UINTN Address,
IN UINT64 Value
)
{
//
// Make sure Address is aligned on a 64-bit boundary.
//
ASSERT ((Address & 7) == 0);
return (UINT64)MmioWriteWorker (Address, EfiCpuIoWidthUint64, Value);
}

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MdePkg/Library/DxeIoLibCpuIo2/IoLibMmioBuffer.c Normal file
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/** @file
I/O Library MMIO Buffer Functions.
Copyright (c) 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.
**/
#include "DxeCpuIo2LibInternal.h"
/**
Copy data from MMIO region to system memory by using 8-bit access.
Copy data from MMIO region specified by starting address StartAddress
to system memory specified by Buffer by using 8-bit access. The total
number of byte to be copied is specified by Length. Buffer is returned.
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied from.
@param Length Size in bytes of the copy.
@param Buffer Pointer to a system memory buffer receiving the data read.
@return Buffer
**/
UINT8 *
EFIAPI
MmioReadBuffer8 (
IN UINTN StartAddress,
IN UINTN Length,
OUT UINT8 *Buffer
)
{
UINT8 *ReturnBuffer;
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
ReturnBuffer = Buffer;
while (Length-- > 0) {
*(Buffer++) = MmioRead8 (StartAddress++);
}
return ReturnBuffer;
}
/**
Copy data from MMIO region to system memory by using 16-bit access.
Copy data from MMIO region specified by starting address StartAddress
to system memory specified by Buffer by using 16-bit access. The total
number of byte to be copied is specified by Length. Buffer is returned.
If StartAddress is not aligned on a 16-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Length is not aligned on a 16-bit boundary, then ASSERT().
If Buffer is not aligned on a 16-bit boundary, then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied from.
@param Length Size in bytes of the copy.
@param Buffer Pointer to a system memory buffer receiving the data read.
@return Buffer
**/
UINT16 *
EFIAPI
MmioReadBuffer16 (
IN UINTN StartAddress,
IN UINTN Length,
OUT UINT16 *Buffer
)
{
UINT16 *ReturnBuffer;
ASSERT ((StartAddress & (sizeof (UINT16) - 1)) == 0);
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
ASSERT ((Length & (sizeof (UINT16) - 1)) == 0);
ASSERT (((UINTN) Buffer & (sizeof (UINT16) - 1)) == 0);
ReturnBuffer = Buffer;
while (Length > 0) {
*(Buffer++) = MmioRead16 (StartAddress);
StartAddress += sizeof (UINT16);
Length -= sizeof (UINT16);
}
return ReturnBuffer;
}
/**
Copy data from MMIO region to system memory by using 32-bit access.
Copy data from MMIO region specified by starting address StartAddress
to system memory specified by Buffer by using 32-bit access. The total
number of byte to be copied is specified by Length. Buffer is returned.
If StartAddress is not aligned on a 32-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Length is not aligned on a 32-bit boundary, then ASSERT().
If Buffer is not aligned on a 32-bit boundary, then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied from.
@param Length Size in bytes of the copy.
@param Buffer Pointer to a system memory buffer receiving the data read.
@return Buffer
**/
UINT32 *
EFIAPI
MmioReadBuffer32 (
IN UINTN StartAddress,
IN UINTN Length,
OUT UINT32 *Buffer
)
{
UINT32 *ReturnBuffer;
ASSERT ((StartAddress & (sizeof (UINT32) - 1)) == 0);
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
ASSERT ((Length & (sizeof (UINT32) - 1)) == 0);
ASSERT (((UINTN) Buffer & (sizeof (UINT32) - 1)) == 0);
ReturnBuffer = Buffer;
while (Length > 0) {
*(Buffer++) = MmioRead32 (StartAddress);
StartAddress += sizeof (UINT32);
Length -= sizeof (UINT32);
}
return ReturnBuffer;
}
/**
Copy data from MMIO region to system memory by using 64-bit access.
Copy data from MMIO region specified by starting address StartAddress
to system memory specified by Buffer by using 64-bit access. The total
number of byte to be copied is specified by Length. Buffer is returned.
If StartAddress is not aligned on a 64-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS - Buffer + 1), then ASSERT().
If Length is not aligned on a 64-bit boundary, then ASSERT().
If Buffer is not aligned on a 64-bit boundary, then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied from.
@param Length Size in bytes of the copy.
@param Buffer Pointer to a system memory buffer receiving the data read.
@return Buffer
**/
UINT64 *
EFIAPI
MmioReadBuffer64 (
IN UINTN StartAddress,
IN UINTN Length,
OUT UINT64 *Buffer
)
{
UINT64 *ReturnBuffer;
ASSERT ((StartAddress & (sizeof (UINT64) - 1)) == 0);
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
ASSERT ((Length & (sizeof (UINT64) - 1)) == 0);
ASSERT (((UINTN) Buffer & (sizeof (UINT64) - 1)) == 0);
ReturnBuffer = Buffer;
while (Length > 0) {
*(Buffer++) = MmioRead64 (StartAddress);
StartAddress += sizeof (UINT64);
Length -= sizeof (UINT64);
}
return ReturnBuffer;
}
/**
Copy data from system memory to MMIO region by using 8-bit access.
Copy data from system memory specified by Buffer to MMIO region specified
by starting address StartAddress by using 8-bit access. The total number
of byte to be copied is specified by Length. Buffer is returned.
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied to.
@param Length Size in bytes of the copy.
@param Buffer Pointer to a system memory buffer containing the data to write.
@return Buffer
**/
UINT8 *
EFIAPI
MmioWriteBuffer8 (
IN UINTN StartAddress,
IN UINTN Length,
IN CONST UINT8 *Buffer
)
{
VOID* ReturnBuffer;
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
ReturnBuffer = (UINT8 *) Buffer;
while (Length-- > 0) {
MmioWrite8 (StartAddress++, *(Buffer++));
}
return ReturnBuffer;
}
/**
Copy data from system memory to MMIO region by using 16-bit access.
Copy data from system memory specified by Buffer to MMIO region specified
by starting address StartAddress by using 16-bit access. The total number
of byte to be copied is specified by Length. Buffer is returned.
If StartAddress is not aligned on a 16-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT().
If Length is not aligned on a 16-bit boundary, then ASSERT().
If Buffer is not aligned on a 16-bit boundary, then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied to.
@param Length Size in bytes of the copy.
@param Buffer Pointer to a system memory buffer containing the data to write.
@return Buffer
**/
UINT16 *
EFIAPI
MmioWriteBuffer16 (
IN UINTN StartAddress,
IN UINTN Length,
IN CONST UINT16 *Buffer
)
{
UINT16 *ReturnBuffer;
ASSERT ((StartAddress & (sizeof (UINT16) - 1)) == 0);
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
ASSERT ((Length & (sizeof (UINT16) - 1)) == 0);
ASSERT (((UINTN) Buffer & (sizeof (UINT16) - 1)) == 0);
ReturnBuffer = (UINT16 *) Buffer;
while (Length > 0) {
MmioWrite16 (StartAddress, *(Buffer++));
StartAddress += sizeof (UINT16);
Length -= sizeof (UINT16);
}
return ReturnBuffer;
}
/**
Copy data from system memory to MMIO region by using 32-bit access.
Copy data from system memory specified by Buffer to MMIO region specified
by starting address StartAddress by using 32-bit access. The total number
of byte to be copied is specified by Length. Buffer is returned.
If StartAddress is not aligned on a 32-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT().
If Length is not aligned on a 32-bit boundary, then ASSERT().
If Buffer is not aligned on a 32-bit boundary, then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied to.
@param Length Size in bytes of the copy.
@param Buffer Pointer to a system memory buffer containing the data to write.
@return Buffer
**/
UINT32 *
EFIAPI
MmioWriteBuffer32 (
IN UINTN StartAddress,
IN UINTN Length,
IN CONST UINT32 *Buffer
)
{
UINT32 *ReturnBuffer;
ASSERT ((StartAddress & (sizeof (UINT32) - 1)) == 0);
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
ASSERT ((Length & (sizeof (UINT32) - 1)) == 0);
ASSERT (((UINTN) Buffer & (sizeof (UINT32) - 1)) == 0);
ReturnBuffer = (UINT32 *) Buffer;
while (Length > 0) {
MmioWrite32 (StartAddress, *(Buffer++));
StartAddress += sizeof (UINT32);
Length -= sizeof (UINT32);
}
return ReturnBuffer;
}
/**
Copy data from system memory to MMIO region by using 64-bit access.
Copy data from system memory specified by Buffer to MMIO region specified
by starting address StartAddress by using 64-bit access. The total number
of byte to be copied is specified by Length. Buffer is returned.
If StartAddress is not aligned on a 64-bit boundary, then ASSERT().
If Length is greater than (MAX_ADDRESS - StartAddress + 1), then ASSERT().
If Length is greater than (MAX_ADDRESS -Buffer + 1), then ASSERT().
If Length is not aligned on a 64-bit boundary, then ASSERT().
If Buffer is not aligned on a 64-bit boundary, then ASSERT().
@param StartAddress Starting address for the MMIO region to be copied to.
@param Length Size in bytes of the copy.
@param Buffer Pointer to a system memory buffer containing the data to write.
@return Buffer
**/
UINT64 *
EFIAPI
MmioWriteBuffer64 (
IN UINTN StartAddress,
IN UINTN Length,
IN CONST UINT64 *Buffer
)
{
UINT64 *ReturnBuffer;
ASSERT ((StartAddress & (sizeof (UINT64) - 1)) == 0);
ASSERT ((Length - 1) <= (MAX_ADDRESS - StartAddress));
ASSERT ((Length - 1) <= (MAX_ADDRESS - (UINTN) Buffer));
ASSERT ((Length & (sizeof (UINT64) - 1)) == 0);
ASSERT (((UINTN) Buffer & (sizeof (UINT64) - 1)) == 0);
ReturnBuffer = (UINT64 *) Buffer;
while (Length > 0) {
MmioWrite64 (StartAddress, *(Buffer++));
StartAddress += sizeof (UINT64);
Length -= sizeof (UINT64);
}
return ReturnBuffer;
}

1
MdePkg/MdePkg.dsc
View File

@ -103,6 +103,7 @@
MdePkg/Library/DxeServicesLib/DxeServicesLib.inf MdePkg/Library/DxeServicesLib/DxeServicesLib.inf
MdePkg/Library/DxeServicesTableLib/DxeServicesTableLib.inf MdePkg/Library/DxeServicesTableLib/DxeServicesTableLib.inf
MdePkg/Library/DxeSmbusLib/DxeSmbusLib.inf MdePkg/Library/DxeSmbusLib/DxeSmbusLib.inf
MdePkg/Library/DxeIoLibCpuIo2/DxeIoLibCpuIo2.inf
MdePkg/Library/DxeRuntimePciExpressLib/DxeRuntimePciExpressLib.inf MdePkg/Library/DxeRuntimePciExpressLib/DxeRuntimePciExpressLib.inf