mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
synced 2024-12-26 16:47:40 +01:00
226 lines
11 KiB
C
226 lines
11 KiB
C
/** @file
|
|
Internal include file for the CPU I/O 2 Protocol.
|
|
|
|
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_DXE_H_
|
|
#define _CPU_IO2_DXE_H_
|
|
|
|
#include <PiDxe.h>
|
|
|
|
#include <Protocol/CpuIo2.h>
|
|
|
|
#include <Library/BaseLib.h>
|
|
#include <Library/DebugLib.h>
|
|
#include <Library/IoLib.h>
|
|
#include <Library/UefiBootServicesTableLib.h>
|
|
|
|
#define MAX_IO_PORT_ADDRESS 0xFFFF
|
|
|
|
/**
|
|
Reads memory-mapped registers.
|
|
|
|
The I/O operations are carried out exactly as requested. The caller is responsible
|
|
for satisfying any alignment and I/O width restrictions that a PI System on a
|
|
platform might require. For example on some platforms, width requests of
|
|
EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will
|
|
be handled by the driver.
|
|
|
|
If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32,
|
|
or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for
|
|
each of the Count operations that is performed.
|
|
|
|
If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16,
|
|
EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is
|
|
incremented for each of the Count operations that is performed. The read or
|
|
write operation is performed Count times on the same Address.
|
|
|
|
If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16,
|
|
EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is
|
|
incremented for each of the Count operations that is performed. The read or
|
|
write operation is performed Count times from the first element of Buffer.
|
|
|
|
@param[in] This A pointer to the EFI_CPU_IO2_PROTOCOL instance.
|
|
@param[in] Width Signifies the width of the I/O or Memory operation.
|
|
@param[in] Address The base address of the I/O operation.
|
|
@param[in] Count The number of I/O operations to perform. The number of
|
|
bytes moved is Width size * Count, starting at Address.
|
|
@param[out] Buffer For read operations, the destination buffer to store the results.
|
|
For write operations, the source buffer from which to write data.
|
|
|
|
@retval EFI_SUCCESS The data was read from or written to the PI system.
|
|
@retval EFI_INVALID_PARAMETER Width is invalid for this PI system.
|
|
@retval EFI_INVALID_PARAMETER Buffer is NULL.
|
|
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
|
|
@retval EFI_UNSUPPORTED The address range specified by Address, Width,
|
|
and Count is not valid for this PI system.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
CpuMemoryServiceRead (
|
|
IN EFI_CPU_IO2_PROTOCOL *This,
|
|
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 Address,
|
|
IN UINTN Count,
|
|
OUT VOID *Buffer
|
|
);
|
|
|
|
/**
|
|
Writes memory-mapped registers.
|
|
|
|
The I/O operations are carried out exactly as requested. The caller is responsible
|
|
for satisfying any alignment and I/O width restrictions that a PI System on a
|
|
platform might require. For example on some platforms, width requests of
|
|
EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will
|
|
be handled by the driver.
|
|
|
|
If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32,
|
|
or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for
|
|
each of the Count operations that is performed.
|
|
|
|
If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16,
|
|
EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is
|
|
incremented for each of the Count operations that is performed. The read or
|
|
write operation is performed Count times on the same Address.
|
|
|
|
If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16,
|
|
EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is
|
|
incremented for each of the Count operations that is performed. The read or
|
|
write operation is performed Count times from the first element of Buffer.
|
|
|
|
@param[in] This A pointer to the EFI_CPU_IO2_PROTOCOL instance.
|
|
@param[in] Width Signifies the width of the I/O or Memory operation.
|
|
@param[in] Address The base address of the I/O operation.
|
|
@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] Buffer For read operations, the destination buffer to store the results.
|
|
For write operations, the source buffer from which to write data.
|
|
|
|
@retval EFI_SUCCESS The data was read from or written to the PI system.
|
|
@retval EFI_INVALID_PARAMETER Width is invalid for this PI system.
|
|
@retval EFI_INVALID_PARAMETER Buffer is NULL.
|
|
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
|
|
@retval EFI_UNSUPPORTED The address range specified by Address, Width,
|
|
and Count is not valid for this PI 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 VOID *Buffer
|
|
);
|
|
|
|
/**
|
|
Reads I/O registers.
|
|
|
|
The I/O operations are carried out exactly as requested. The caller is responsible
|
|
for satisfying any alignment and I/O width restrictions that a PI System on a
|
|
platform might require. For example on some platforms, width requests of
|
|
EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will
|
|
be handled by the driver.
|
|
|
|
If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32,
|
|
or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for
|
|
each of the Count operations that is performed.
|
|
|
|
If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16,
|
|
EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is
|
|
incremented for each of the Count operations that is performed. The read or
|
|
write operation is performed Count times on the same Address.
|
|
|
|
If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16,
|
|
EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is
|
|
incremented for each of the Count operations that is performed. The read or
|
|
write operation is performed Count times from the first element of Buffer.
|
|
|
|
@param[in] This A pointer to the EFI_CPU_IO2_PROTOCOL instance.
|
|
@param[in] Width Signifies the width of the I/O or Memory operation.
|
|
@param[in] Address The base address of the I/O operation.
|
|
@param[in] Count The number of I/O operations to perform. The number of
|
|
bytes moved is Width size * Count, starting at Address.
|
|
@param[out] Buffer For read operations, the destination buffer to store the results.
|
|
For write operations, the source buffer from which to write data.
|
|
|
|
@retval EFI_SUCCESS The data was read from or written to the PI system.
|
|
@retval EFI_INVALID_PARAMETER Width is invalid for this PI system.
|
|
@retval EFI_INVALID_PARAMETER Buffer is NULL.
|
|
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
|
|
@retval EFI_UNSUPPORTED The address range specified by Address, Width,
|
|
and Count is not valid for this PI system.
|
|
|
|
**/
|
|
EFI_STATUS
|
|
EFIAPI
|
|
CpuIoServiceRead (
|
|
IN EFI_CPU_IO2_PROTOCOL *This,
|
|
IN EFI_CPU_IO_PROTOCOL_WIDTH Width,
|
|
IN UINT64 Address,
|
|
IN UINTN Count,
|
|
OUT VOID *Buffer
|
|
);
|
|
|
|
/**
|
|
Write I/O registers.
|
|
|
|
The I/O operations are carried out exactly as requested. The caller is responsible
|
|
for satisfying any alignment and I/O width restrictions that a PI System on a
|
|
platform might require. For example on some platforms, width requests of
|
|
EfiCpuIoWidthUint64 do not work. Misaligned buffers, on the other hand, will
|
|
be handled by the driver.
|
|
|
|
If Width is EfiCpuIoWidthUint8, EfiCpuIoWidthUint16, EfiCpuIoWidthUint32,
|
|
or EfiCpuIoWidthUint64, then both Address and Buffer are incremented for
|
|
each of the Count operations that is performed.
|
|
|
|
If Width is EfiCpuIoWidthFifoUint8, EfiCpuIoWidthFifoUint16,
|
|
EfiCpuIoWidthFifoUint32, or EfiCpuIoWidthFifoUint64, then only Buffer is
|
|
incremented for each of the Count operations that is performed. The read or
|
|
write operation is performed Count times on the same Address.
|
|
|
|
If Width is EfiCpuIoWidthFillUint8, EfiCpuIoWidthFillUint16,
|
|
EfiCpuIoWidthFillUint32, or EfiCpuIoWidthFillUint64, then only Address is
|
|
incremented for each of the Count operations that is performed. The read or
|
|
write operation is performed Count times from the first element of Buffer.
|
|
|
|
@param[in] This A pointer to the EFI_CPU_IO2_PROTOCOL instance.
|
|
@param[in] Width Signifies the width of the I/O or Memory operation.
|
|
@param[in] Address The base address of the I/O operation.
|
|
@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] Buffer For read operations, the destination buffer to store the results.
|
|
For write operations, the source buffer from which to write data.
|
|
|
|
@retval EFI_SUCCESS The data was read from or written to the PI system.
|
|
@retval EFI_INVALID_PARAMETER Width is invalid for this PI system.
|
|
@retval EFI_INVALID_PARAMETER Buffer is NULL.
|
|
@retval EFI_UNSUPPORTED The Buffer is not aligned for the given Width.
|
|
@retval EFI_UNSUPPORTED The address range specified by Address, Width,
|
|
and Count is not valid for this PI 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 VOID *Buffer
|
|
);
|
|
|
|
#endif
|