mirror of https://github.com/acidanthera/audk.git
131 lines
5.9 KiB
C
131 lines
5.9 KiB
C
/** @file
|
|
Internal include file for the CPU I/O 2 Protocol thunk driver.
|
|
|
|
Copyright (c) 2009 - 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 __CPU_IO2_ON_CPU_IO_H__
|
|
#define __CPU_IO2_ON_CPU_IO_H__
|
|
|
|
#include <Protocol/CpuIo2.h>
|
|
#include <Protocol/CpuIo.h>
|
|
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/UefiBootServicesTableLib.h>
|
|
|
|
/**
|
|
Enables a driver to read memory-mapped registers in the PI System memory space.
|
|
|
|
@param[in] This A pointer to the EFI_CPU_IO2_PROTOCOL instance.
|
|
@param[in] Width Signifies the width of the memory operation.
|
|
@param[in] Address The base address of the memory operation.
|
|
@param[in] Count The number of memory operations to perform. The number of bytes moved
|
|
is Width size * Count, starting at Address.
|
|
@param[in, out] Buffer The destination buffer to store the results.
|
|
|
|
@retval EFI_SUCCESS The data was read from or written to the EFI system.
|
|
@retval EFI_INVALID_PARAMETER Width is invalid for this EFI system. Or Buffer is NULL.
|
|
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
|
|
Or,The address range specified by Address, Width, and Count is not valid for this EFI system.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
CpuMemoryServiceRead (
|
|
IN EFI_CPU_IO2_PROTOCOL *This,
|
|
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 Address,
|
|
IN UINTN Count,
|
|
IN OUT VOID *Buffer
|
|
);
|
|
|
|
/**
|
|
Enables a driver to write memory-mapped registers in the PI System memory space.
|
|
|
|
@param[in] This A pointer to the EFI_CPU_IO2_PROTOCOL instance.
|
|
@param[in] Width Signifies the width of the memory operation.
|
|
@param[in] Address The base address of the memory operation.
|
|
@param[in] Count The number of memory operations to perform. The number of bytes moved
|
|
is Width size * Count, starting at Address.
|
|
@param[in, out] Buffer The source buffer from which to write data.
|
|
|
|
@retval EFI_SUCCESS The data was read from or written to the EFI system.
|
|
@retval EFI_INVALID_PARAMETER Width is invalid for this EFI system. Or Buffer is NULL.
|
|
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
|
|
Or,The address range specified by Address, Width, and Count is not valid for this EFI system.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
CpuMemoryServiceWrite (
|
|
IN EFI_CPU_IO2_PROTOCOL *This,
|
|
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 Address,
|
|
IN UINTN Count,
|
|
IN OUT VOID *Buffer
|
|
);
|
|
|
|
/**
|
|
Enables a driver to read registers in the PI CPU I/O space.
|
|
|
|
@param[in] This A pointer to the EFI_CPU_IO2_PROTOCOL instance.
|
|
@param[in] Width Signifies the width of the I/O operation.
|
|
@param[in] Address The base address of the I/O operation. The caller is responsible
|
|
for aligning the Address if required.
|
|
@param[in] Count The number of I/O operations to perform. The number of bytes moved
|
|
is Width size * Count, starting at Address.
|
|
@param[in, out] Buffer The destination buffer to store the results.
|
|
|
|
@retval EFI_SUCCESS The data was read from or written to the EFI system.
|
|
@retval EFI_INVALID_PARAMETER Width is invalid for this EFI system. Or Buffer is NULL.
|
|
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
|
|
Or,The address range specified by Address, Width, and Count is not valid for this EFI system.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
CpuIoServiceRead (
|
|
IN EFI_CPU_IO2_PROTOCOL *This,
|
|
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 Address,
|
|
IN UINTN Count,
|
|
IN OUT VOID *Buffer
|
|
);
|
|
|
|
/**
|
|
Enables a driver to write registers in the PI CPU I/O space.
|
|
|
|
@param[in] This A pointer to the EFI_CPU_IO2_PROTOCOL instance.
|
|
@param[in] Width Signifies the width of the I/O operation.
|
|
@param[in] Address The base address of the I/O operation. The caller is responsible
|
|
for aligning the Address if required.
|
|
@param[in] Count The number of I/O operations to perform. The number of bytes moved
|
|
is Width size * Count, starting at Address.
|
|
@param[in, out] Buffer The source buffer from which to write data.
|
|
|
|
@retval EFI_SUCCESS The data was read from or written to the EFI system.
|
|
@retval EFI_INVALID_PARAMETER Width is invalid for this EFI system. Or Buffer is NULL.
|
|
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
|
|
Or,The address range specified by Address, Width, and Count is not valid for this EFI system.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
CpuIoServiceWrite (
|
|
IN EFI_CPU_IO2_PROTOCOL *This,
|
|
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 Address,
|
|
IN UINTN Count,
|
|
IN OUT VOID *Buffer
|
|
);
|
|
|
|
#endif
|