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Porting Duet module from EDKI to EDKII

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5076 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
klu2
2008-04-17 05:48:13 +00:00
parent fcf03596d1
commit c69dd9dfad
77 changed files with 26415 additions and 13 deletions
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533
DuetPkg/CpuIoDxe/CpuIo.c Normal file
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/*++
Copyright (c) 2004 - 2007, Intel Corporation
All rights reserved. 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:
CpuIo.c
Abstract:
This is the code that publishes the CPU I/O Protocol.
The intent herein is to have a single I/O service that can load
as early as possible, extend into runtime, and be layered upon by
the implementations of architectural protocols and the PCI Root
Bridge I/O Protocol.
--*/
#include "CpuIo.h"
#include "CpuIoAccess.h"
#define IA32_MAX_IO_ADDRESS 0xFFFF
EFI_CPU_IO_PROTOCOL mCpuIo = {
{
CpuMemoryServiceRead,
CpuMemoryServiceWrite
},
{
CpuIoServiceRead,
CpuIoServiceWrite
}
};
STATIC
EFI_STATUS
CpuIoMemRW (
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINTN Count,
IN BOOLEAN DestinationStrideFlag,
OUT PTR Destination,
IN BOOLEAN SourceStrideFlag,
IN PTR Source
)
/*++
Routine Description:
Private service to perform memory mapped I/O read/write
Arguments:
Width - Width of the memory mapped I/O operation
Count - Count of the number of accesses to perform
DestinationStrideFlag - Boolean flag indicates if the destination is to be incremented
Destination - Destination of the memory mapped I/O operation
SourceStrideFlag - Boolean flag indicates if the source is to be incremented
Source - Source of the memory mapped I/O operation
Returns:
EFI_SUCCESS - Successful operation
EFI_INVALID_PARAMETER - Width is invalid
--*/
{
UINTN Stride;
UINTN DestinationStride;
UINTN SourceStride;
Width = Width & 0x03;
Stride = (UINTN)1 << Width;
DestinationStride = DestinationStrideFlag ? Stride : 0;
SourceStride = SourceStrideFlag ? Stride : 0;
//
// Loop for each iteration and move the data
//
switch (Width) {
case EfiCpuIoWidthUint8:
for (; Count > 0; Count--, Destination.buf += DestinationStride, Source.buf += SourceStride) {
MemoryFence();
*Destination.ui8 = *Source.ui8;
MemoryFence();
}
break;
case EfiCpuIoWidthUint16:
for (; Count > 0; Count--, Destination.buf += DestinationStride, Source.buf += SourceStride) {
MemoryFence ();
*Destination.ui16 = *Source.ui16;
MemoryFence ();
}
break;
case EfiCpuIoWidthUint32:
for (; Count > 0; Count--, Destination.buf += DestinationStride, Source.buf += SourceStride) {
MemoryFence ();
*Destination.ui32 = *Source.ui32;
MemoryFence ();
}
break;
case EfiCpuIoWidthUint64:
for (; Count > 0; Count--, Destination.buf += DestinationStride, Source.buf += SourceStride) {
MemoryFence ();
*Destination.ui64 = *Source.ui64;
MemoryFence ();
}
break;
default:
return EFI_INVALID_PARAMETER;
}
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
CpuMemoryServiceRead (
IN EFI_CPU_IO_PROTOCOL *This,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
OUT VOID *Buffer
)
/*++
Routine Description:
Perform the memory mapped I/O read service
Arguments:
This - Pointer to an instance of the CPU I/O Protocol
Width - Width of the memory mapped I/O operation
Address - Base address of the memory mapped I/O operation
Count - Count of the number of accesses to perform
Buffer - Pointer to the destination buffer to store the results
Returns:
EFI_SUCCESS - The data was read.
EFI_INVALID_PARAMETER - Width is invalid.
EFI_INVALID_PARAMETER - Buffer is NULL.
EFI_UNSUPPORTED - The Buffer is not aligned for the given Width.
EFI_UNSUPPORTED - The address range specified by Address, Width,
and Count is not valid.
--*/
{
PTR Source;
PTR Destination;
EFI_STATUS Status;
Status = CpuIoCheckParameter (Width, Address, Count, Buffer, EFI_MAX_ADDRESS);
if (EFI_ERROR (Status)) {
return Status;
}
Destination.buf = Buffer;
Source.buf = (VOID *) (UINTN) Address;
if (Width >= EfiCpuIoWidthUint8 && Width <= EfiCpuIoWidthUint64) {
return CpuIoMemRW (Width, Count, TRUE, Destination, TRUE, Source);
}
if (Width >= EfiCpuIoWidthFifoUint8 && Width <= EfiCpuIoWidthFifoUint64) {
return CpuIoMemRW (Width, Count, TRUE, Destination, FALSE, Source);
}
if (Width >= EfiCpuIoWidthFillUint8 && Width <= EfiCpuIoWidthFillUint64) {
return CpuIoMemRW (Width, Count, FALSE, Destination, TRUE, Source);
}
return EFI_INVALID_PARAMETER;
}
EFI_STATUS
EFIAPI
CpuMemoryServiceWrite (
IN EFI_CPU_IO_PROTOCOL *This,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN VOID *Buffer
)
/*++
Routine Description:
Perform the memory mapped I/O write service
Arguments:
This - Pointer to an instance of the CPU I/O Protocol
Width - Width of the memory mapped I/O operation
Address - Base address of the memory mapped I/O operation
Count - Count of the number of accesses to perform
Buffer - Pointer to the source buffer from which to write data
Returns:
EFI_SUCCESS - The data was written.
EFI_INVALID_PARAMETER - Width is invalid.
EFI_INVALID_PARAMETER - Buffer is NULL.
EFI_UNSUPPORTED - The Buffer is not aligned for the given Width.
EFI_UNSUPPORTED - The address range specified by Address, Width,
and Count is not valid.
--*/
{
PTR Source;
PTR Destination;
EFI_STATUS Status;
Status = CpuIoCheckParameter (Width, Address, Count, Buffer, EFI_MAX_ADDRESS);
if (EFI_ERROR (Status)) {
return Status;
}
Destination.buf = (VOID *) (UINTN) Address;
Source.buf = Buffer;
if (Width >= EfiCpuIoWidthUint8 && Width <= EfiCpuIoWidthUint64) {
return CpuIoMemRW (Width, Count, TRUE, Destination, TRUE, Source);
}
if (Width >= EfiCpuIoWidthFifoUint8 && Width <= EfiCpuIoWidthFifoUint64) {
return CpuIoMemRW (Width, Count, FALSE, Destination, TRUE, Source);
}
if (Width >= EfiCpuIoWidthFillUint8 && Width <= EfiCpuIoWidthFillUint64) {
return CpuIoMemRW (Width, Count, TRUE, Destination, FALSE, Source);
}
return EFI_INVALID_PARAMETER;
}
EFI_STATUS
EFIAPI
CpuIoServiceRead (
IN EFI_CPU_IO_PROTOCOL *This,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 UserAddress,
IN UINTN Count,
OUT VOID *UserBuffer
)
/*++
Routine Description:
Perform the port I/O read service
Arguments:
This - Pointer to an instance of the CPU I/O Protocol
Width - Width of the port I/O operation
Address - Base address of the port I/O operation
Count - Count of the number of accesses to perform
Buffer - Pointer to the destination buffer to store the results
Returns:
EFI_SUCCESS - The data was read.
EFI_INVALID_PARAMETER - Width is invalid.
EFI_INVALID_PARAMETER - Buffer is NULL.
EFI_UNSUPPORTED - The Buffer is not aligned for the given Width.
EFI_UNSUPPORTED - The address range specified by Address, Width,
and Count is not valid.
--*/
{
UINTN InStride;
UINTN OutStride;
UINTN Address;
PTR Buffer;
EFI_STATUS Status;
Buffer.buf = (UINT8 *) UserBuffer;
if (Width >= EfiCpuIoWidthMaximum) {
return EFI_INVALID_PARAMETER;
}
Status = CpuIoCheckParameter (Width, UserAddress, Count, UserBuffer, IA32_MAX_IO_ADDRESS);
if (EFI_ERROR (Status)) {
return Status;
}
Address = (UINTN) UserAddress;
InStride = (UINTN)1 << (Width & 0x03);
OutStride = InStride;
if (Width >= EfiCpuIoWidthFifoUint8 && Width <= EfiCpuIoWidthFifoUint64) {
InStride = 0;
}
if (Width >= EfiCpuIoWidthFillUint8 && Width <= EfiCpuIoWidthFillUint64) {
OutStride = 0;
}
Width = Width & 0x03;
//
// Loop for each iteration and move the data
//
switch (Width) {
case EfiCpuIoWidthUint8:
for (; Count > 0; Count--, Buffer.buf += OutStride, Address += InStride) {
*Buffer.ui8 = CpuIoRead8 ((UINT16) Address);
}
break;
case EfiCpuIoWidthUint16:
for (; Count > 0; Count--, Buffer.buf += OutStride, Address += InStride) {
*Buffer.ui16 = CpuIoRead16 ((UINT16) Address);
}
break;
case EfiCpuIoWidthUint32:
for (; Count > 0; Count--, Buffer.buf += OutStride, Address += InStride) {
*Buffer.ui32 = CpuIoRead32 ((UINT16) Address);
}
break;
default:
return EFI_INVALID_PARAMETER;
}
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
CpuIoServiceWrite (
IN EFI_CPU_IO_PROTOCOL *This,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 UserAddress,
IN UINTN Count,
IN VOID *UserBuffer
)
/*++
Routine Description:
Perform the port I/O write service
Arguments:
This - Pointer to an instance of the CPU I/O Protocol
Width - Width of the port I/O operation
Address - Base address of the port I/O operation
Count - Count of the number of accesses to perform
Buffer - Pointer to the source buffer from which to write data
Returns:
EFI_SUCCESS - The data was written.
EFI_INVALID_PARAMETER - Width is invalid.
EFI_INVALID_PARAMETER - Buffer is NULL.
EFI_UNSUPPORTED - The Buffer is not aligned for the given Width.
EFI_UNSUPPORTED - The address range specified by Address, Width,
and Count is not valid.
--*/
{
UINTN InStride;
UINTN OutStride;
UINTN Address;
PTR Buffer;
EFI_STATUS Status;
Buffer.buf = (UINT8 *) UserBuffer;
if (Width >= EfiCpuIoWidthMaximum) {
return EFI_INVALID_PARAMETER;
}
Status = CpuIoCheckParameter (Width, UserAddress, Count, UserBuffer, IA32_MAX_IO_ADDRESS);
if (EFI_ERROR (Status)) {
return Status;
}
Address = (UINTN) UserAddress;
InStride = (UINTN)1 << (Width & 0x03);
OutStride = InStride;
if (Width >= EfiCpuIoWidthFifoUint8 && Width <= EfiCpuIoWidthFifoUint64) {
InStride = 0;
}
if (Width >= EfiCpuIoWidthFillUint8 && Width <= EfiCpuIoWidthFillUint64) {
OutStride = 0;
}
Width = Width & 0x03;
//
// Loop for each iteration and move the data
//
switch (Width) {
case EfiCpuIoWidthUint8:
for (; Count > 0; Count--, Buffer.buf += OutStride, Address += InStride) {
CpuIoWrite8 ((UINT16) Address, *Buffer.ui8);
}
break;
case EfiCpuIoWidthUint16:
for (; Count > 0; Count--, Buffer.buf += OutStride, Address += InStride) {
CpuIoWrite16 ((UINT16) Address, *Buffer.ui16);
}
break;
case EfiCpuIoWidthUint32:
for (; Count > 0; Count--, Buffer.buf += OutStride, Address += InStride) {
CpuIoWrite32 ((UINT16) Address, *Buffer.ui32);
}
break;
default:
return EFI_INVALID_PARAMETER;
}
return EFI_SUCCESS;
}
EFI_STATUS
EFIAPI
CpuIoInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
CpuIo driver entry point.
Arguments:
ImageHandle - The firmware allocated handle for the EFI image.
SystemTable - A pointer to the EFI System Table.
Returns:
EFI_SUCCESS - The driver was initialized.
EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of resources.
--*/
{
EFI_STATUS Status;
EFI_HANDLE Handle;
Handle = NULL;
Status = SystemTable->BootServices->InstallProtocolInterface (
&Handle,
&gEfiCpuIoProtocolGuid,
EFI_NATIVE_INTERFACE,
&mCpuIo
);
ASSERT_EFI_ERROR (Status);
return Status;
}
EFI_STATUS
CpuIoCheckParameter (
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN VOID *Buffer,
IN UINT64 Limit
)
/*++
Routine Description:
Check the validation of parameters for CPU I/O interface functions.
Arguments:
Width - Width of the Memory Access
Address - Address of the Memory access
Count - Count of the number of accesses to perform
Buffer - Pointer to the buffer to read from memory
Buffer - Memory buffer for the I/O operation
Limit - Maximum address supported
Returns:
EFI_INVALID_PARAMETER - Buffer is NULL
EFI_UNSUPPORTED - The address range specified by Width, Address and Count is invalid
EFI_UNSUPPORTED - The memory buffer is not aligned
EFI_SUCCESS - Parameters are OK
--*/
{
UINTN AlignMask;
if (Buffer == NULL) {
return EFI_INVALID_PARAMETER;
}
if (Address > Limit) {
return EFI_UNSUPPORTED;
}
//
// For FiFo type, the target address won't increase during the access,
// so treat count as 1
//
if (Width >= EfiCpuIoWidthFifoUint8 && Width <= EfiCpuIoWidthFifoUint64) {
Count = 1;
}
Width = Width & 0x03;
if (Address - 1 + ((UINTN)1 << Width) * Count > Limit) {
return EFI_UNSUPPORTED;
}
AlignMask = ((UINTN)1 << Width) - 1;
if ((UINTN) Buffer & AlignMask) {
return EFI_UNSUPPORTED;
}
return EFI_SUCCESS;
}

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DuetPkg/CpuIoDxe/CpuIo.h Normal file
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/*++
Copyright (c) 2004, Intel Corporation
All rights reserved. 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:
CpuIo.h
Abstract:
*.h file for the driver
Note: the EFIAPI on the CpuIo functions is used to glue MASM (assembler) code
into C code. By making the MASM functions EFIAPI it ensures that a standard
C calling convention is assumed by the compiler, reguardless of the compiler
flags.
--*/
#ifndef _CPU_IO_H
#define _CPU_IO_H
#include <PiDxe.h>
#include <Protocol/CpuIo.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#define VOLATILE volatile
typedef union {
UINT8 VOLATILE *buf;
UINT8 VOLATILE *ui8;
UINT16 VOLATILE *ui16;
UINT32 VOLATILE *ui32;
UINT64 VOLATILE *ui64;
UINTN VOLATILE ui;
} PTR;
EFI_STATUS
EFIAPI
CpuIoInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
CpuIo driver entry point.
Arguments:
ImageHandle - The firmware allocated handle for the EFI image.
SystemTable - A pointer to the EFI System Table.
Returns:
EFI_SUCCESS - The driver was initialized.
EFI_OUT_OF_RESOURCES - The request could not be completed due to a lack of resources.
--*/
;
EFI_STATUS
EFIAPI
CpuMemoryServiceRead (
IN EFI_CPU_IO_PROTOCOL *This,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
OUT VOID *Buffer
)
/*++
Routine Description:
Perform the memory mapped I/O read service
Arguments:
This - Pointer to an instance of the CPU I/O Protocol
Width - Width of the memory mapped I/O operation
Address - Base address of the memory mapped I/O operation
Count - Count of the number of accesses to perform
Buffer - Pointer to the destination buffer to store the results
Returns:
EFI_SUCCESS - The data was read.
EFI_INVALID_PARAMETER - Width is invalid.
EFI_INVALID_PARAMETER - Buffer is NULL.
EFI_UNSUPPORTED - The Buffer is not aligned for the given Width.
EFI_UNSUPPORTED - The address range specified by Address, Width,
and Count is not valid.
--*/
;
EFI_STATUS
EFIAPI
CpuMemoryServiceWrite (
IN EFI_CPU_IO_PROTOCOL *This,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN VOID *Buffer
)
/*++
Routine Description:
Perform the memory mapped I/O write service
Arguments:
This - Pointer to an instance of the CPU I/O Protocol
Width - Width of the memory mapped I/O operation
Address - Base address of the memory mapped I/O operation
Count - Count of the number of accesses to perform
Buffer - Pointer to the source buffer from which to write data
Returns:
EFI_SUCCESS - The data was written.
EFI_INVALID_PARAMETER - Width is invalid.
EFI_INVALID_PARAMETER - Buffer is NULL.
EFI_UNSUPPORTED - The Buffer is not aligned for the given Width.
EFI_UNSUPPORTED - The address range specified by Address, Width,
and Count is not valid.
--*/
;
EFI_STATUS
EFIAPI
CpuIoServiceRead (
IN EFI_CPU_IO_PROTOCOL *This,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 UserAddress,
IN UINTN Count,
OUT VOID *UserBuffer
)
/*++
Routine Description:
Perform the port I/O read service
Arguments:
This - Pointer to an instance of the CPU I/O Protocol
Width - Width of the port I/O operation
Address - Base address of the port I/O operation
Count - Count of the number of accesses to perform
Buffer - Pointer to the destination buffer to store the results
Returns:
EFI_SUCCESS - The data was read.
EFI_INVALID_PARAMETER - Width is invalid.
EFI_INVALID_PARAMETER - Buffer is NULL.
EFI_UNSUPPORTED - The Buffer is not aligned for the given Width.
EFI_UNSUPPORTED - The address range specified by Address, Width,
and Count is not valid.
--*/
;
EFI_STATUS
EFIAPI
CpuIoServiceWrite (
IN EFI_CPU_IO_PROTOCOL *This,
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 UserAddress,
IN UINTN Count,
IN VOID *UserBuffer
)
/*++
Routine Description:
Perform the port I/O write service
Arguments:
This - Pointer to an instance of the CPU I/O Protocol
Width - Width of the port I/O operation
Address - Base address of the port I/O operation
Count - Count of the number of accesses to perform
Buffer - Pointer to the source buffer from which to write data
Returns:
EFI_SUCCESS - The data was written.
EFI_INVALID_PARAMETER - Width is invalid.
EFI_INVALID_PARAMETER - Buffer is NULL.
EFI_UNSUPPORTED - The Buffer is not aligned for the given Width.
EFI_UNSUPPORTED - The address range specified by Address, Width,
and Count is not valid.
--*/
;
EFI_STATUS
CpuIoCheckParameter (
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN VOID *Buffer,
IN UINT64 Limit
)
/*++
Routine Description:
Check the validation of parameters for CPU I/O interface functions.
Arguments:
Width - Width of the Memory Access
Address - Address of the Memory access
Count - Count of the number of accesses to perform
Buffer - Pointer to the buffer to read from memory
Buffer - Memory buffer for the I/O operation
Limit - Maximum address supported
Returns:
EFI_INVALID_PARAMETER - Buffer is NULL
EFI_UNSUPPORTED - The address range specified by Width, Address and Count is invalid
EFI_UNSUPPORTED - The memory buffer is not aligned
EFI_SUCCESS - Parameters are OK
--*/
;
#endif

56
DuetPkg/CpuIoDxe/CpuIo.inf Normal file
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#/*++
#
# Copyright (c) 2004, Intel Corporation
# All rights reserved. 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:
#
# CpuIo.inf
#
# Abstract:
#
# Component description file for CpuIo module
#
#--*/
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = CpuIo
FILE_GUID = BAE7599F-3C6B-43b7-BDF0-9CE07AA91AA6
MODULE_TYPE = DXE_DRIVER
VERSION_STRING = 1.0
EDK_RELEASE_VERSION = 0x00020000
EFI_SPECIFICATION_VERSION = 0x00020000
ENTRY_POINT = CpuIoInitialize
[Packages]
DuetPkg/DuetPkg.dec
MdePkg/MdePkg.dec
IntelFrameworkPkg/IntelFrameworkPkg.dec
[LibraryClasses]
BaseLib
DebugLib
UefiDriverEntryPoint
IoLib
[Sources.common]
CpuIo.c
CpuIo.h
CpuIoAccess.h
[Sources.IA32]
IA32\CpuIoAccess.asm
[Sources.X64]
X64\CpuIoAccess.asm
[Protocols]
gEfiCpuIoProtocolGuid

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DuetPkg/CpuIoDxe/CpuIoAccess.h Normal file
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/*++
#
# Copyright (c) 2004, Intel Corporation
# All rights reserved. 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:
CpuIoAccess.h
Abstract:
--*/
#ifndef _CPU_IO_ACCESS_H
#define _CPU_IO_ACCESS_H
#define IA32API __cdecl
UINT8
IA32API
CpuIoRead8 (
IN UINT16 Port
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
Port - GC_TODO: add argument description
Returns:
GC_TODO: add return values
--*/
;
/*++
Routine Description:
Cpu I/O read port
Arguments:
Port: - Port number to read
Returns:
Return read 8 bit value
--*/
UINT16
IA32API
CpuIoRead16 (
IN UINT16 Port
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
Port - GC_TODO: add argument description
Returns:
GC_TODO: add return values
--*/
;
/*++
Routine Description:
Cpu I/O read port
Arguments:
Port: - Port number to read
Returns:
Return read 16 bit value
--*/
UINT32
IA32API
CpuIoRead32 (
IN UINT16 Port
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
Port - GC_TODO: add argument description
Returns:
GC_TODO: add return values
--*/
;
/*++
Routine Description:
Cpu I/O read port
Arguments:
Port: - Port number to read
Returns:
Return read 32 bit value
--*/
VOID
IA32API
CpuIoWrite8 (
IN UINT16 Port,
IN UINT32 Data
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
Port - GC_TODO: add argument description
Data - GC_TODO: add argument description
Returns:
GC_TODO: add return values
--*/
;
/*++
Routine Description:
Cpu I/O write 8 bit data to port
Arguments:
Port: - Port number to read
Data: - Data to write to the Port
Returns:
None
--*/
VOID
IA32API
CpuIoWrite16 (
IN UINT16 Port,
IN UINT32 Data
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
Port - GC_TODO: add argument description
Data - GC_TODO: add argument description
Returns:
GC_TODO: add return values
--*/
;
/*++
Routine Description:
Cpu I/O write 16 bit data to port
Arguments:
Port: - Port number to read
Data: - Data to write to the Port
Returns:
None
--*/
VOID
IA32API
CpuIoWrite32 (
IN UINT16 Port,
IN UINT32 Data
)
/*++
Routine Description:
GC_TODO: Add function description
Arguments:
Port - GC_TODO: add argument description
Data - GC_TODO: add argument description
Returns:
GC_TODO: add return values
--*/
;
/*++
Routine Description:
Cpu I/O write 32 bit data to port
Arguments:
Port: - Port number to read
Data: - Data to write to the Port
Returns:
None
--*/
#endif

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title CpuIoAccess.asm
;------------------------------------------------------------------------------
;*
;* Copyright (c) 2005, Intel Corporation
;* All rights reserved. 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:
;* CpuIoAccess.asm
;*
;* Abstract:
;* Supports IA32 CPU IO operation
;*
;------------------------------------------------------------------------------
;
;
;------------------------------------------------------------------------------
.686
.MODEL FLAT,C
.CODE
UINT8 TYPEDEF BYTE
UINT16 TYPEDEF WORD
UINT32 TYPEDEF DWORD
UINT64 TYPEDEF QWORD
UINTN TYPEDEF UINT32
;------------------------------------------------------------------------------
; UINT8
; CpuIoRead8 (
; IN UINT16 Port
; )
;------------------------------------------------------------------------------
CpuIoRead8 PROC PUBLIC Port:UINT16
mov dx, Port
in al, dx
ret
CpuIoRead8 ENDP
;------------------------------------------------------------------------------
; UINT16
; CpuIoRead16 (
; IN UINT16 Port
; )
;------------------------------------------------------------------------------
CpuIoRead16 PROC PUBLIC Port:UINT16
mov dx, Port
in ax, dx
ret
CpuIoRead16 ENDP
;------------------------------------------------------------------------------
; UINT32
; CpuIoRead32 (
; IN UINT16 Port
; )
;------------------------------------------------------------------------------
CpuIoRead32 PROC PUBLIC Port:UINT16
mov dx, Port
in eax, dx
ret
CpuIoRead32 ENDP
;------------------------------------------------------------------------------
; VOID
; CpuIoWrite8 (
; IN UINT16 Port,
; IN UINT32 Data
; )
;------------------------------------------------------------------------------
CpuIoWrite8 PROC PUBLIC Port:UINT16, Data:UINT32
mov eax, Data
mov dx, Port
out dx, al
ret
CpuIoWrite8 ENDP
;------------------------------------------------------------------------------
; VOID
; CpuIoWrite16 (
; IN UINT16 Port,
; IN UINT32 Data
; )
;------------------------------------------------------------------------------
CpuIoWrite16 PROC PUBLIC Port:UINT16, Data:UINT32
mov eax, Data
mov dx, Port
out dx, ax
ret
CpuIoWrite16 ENDP
;------------------------------------------------------------------------------
; VOID
; CpuIoWrite32 (
; IN UINT16 Port,
; IN UINT32 Data
; )
;------------------------------------------------------------------------------
CpuIoWrite32 PROC PUBLIC Port:UINT16, Data:UINT32
mov eax, Data
mov dx, Port
out dx, eax
ret
CpuIoWrite32 ENDP
END

26
DuetPkg/CpuIoDxe/Ia32CpuIo.dxs Normal file
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/*++
Copyright (c) 2004, Intel Corporation
All rights reserved. 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:
Ia32CpuIo.dxs
Abstract:
Dependency expression source file.
--*/
#include "EfiDepex.h"
DEPENDENCY_START
TRUE
DEPENDENCY_END

111
DuetPkg/CpuIoDxe/x64/CpuIoAccess.asm Normal file
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title CpuIoAccess.asm
;------------------------------------------------------------------------------
;*
;* Copyright (c) 2005 - 2007, Intel Corporation
;* All rights reserved. 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:
;* CpuIoAccess.asm
;*
;* Abstract:
;* Supports x64 CPU IO operation
;*
;------------------------------------------------------------------------------
;
;
;
; Abstract:
;
;
;------------------------------------------------------------------------------
.CODE
;------------------------------------------------------------------------------
; UINT8
; CpuIoRead8 (
; UINT16 Port // rcx
; )
;------------------------------------------------------------------------------
CpuIoRead8 PROC PUBLIC
xor eax, eax
mov dx, cx
in al, dx
ret
CpuIoRead8 ENDP
;------------------------------------------------------------------------------
; VOID
; CpuIoWrite8 (
; UINT16 Port, // rcx
; UINT32 Data // rdx
; )
;------------------------------------------------------------------------------
CpuIoWrite8 PROC PUBLIC
mov eax, edx
mov dx, cx
out dx, al
ret
CpuIoWrite8 ENDP
;------------------------------------------------------------------------------
; UINT16
; CpuIoRead16 (
; UINT16 Port // rcx
; )
;------------------------------------------------------------------------------
CpuIoRead16 PROC PUBLIC
xor eax, eax
mov dx, cx
in ax, dx
ret
CpuIoRead16 ENDP
;------------------------------------------------------------------------------
; VOID
; CpuIoWrite16 (
; UINT16 Port, // rcx
; UINT32 Data // rdx
; )
;------------------------------------------------------------------------------
CpuIoWrite16 PROC PUBLIC
mov eax, edx
mov dx, cx
out dx, ax
ret
CpuIoWrite16 ENDP
;------------------------------------------------------------------------------
; UINT32
; CpuIoRead32 (
; UINT16 Port // rcx
; )
;------------------------------------------------------------------------------
CpuIoRead32 PROC PUBLIC
mov dx, cx
in eax, dx
ret
CpuIoRead32 ENDP
;------------------------------------------------------------------------------
; VOID
; CpuIoWrite32 (
; UINT16 Port, // rcx
; UINT32 Data // rdx
; )
;------------------------------------------------------------------------------
CpuIoWrite32 PROC PUBLIC
mov eax, edx
mov dx, cx
out dx, eax
ret
CpuIoWrite32 ENDP
END