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/** @file
This PPI provides a set of memory and I/O-based services.
The perspective of the services is that of the processor, not the bus or system.
Copyright (c) 2006 - 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 that 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.
@par Revision Reference:
This PPI is introduced in PI Version 1.0.
**/
#ifndef __PEI_CPUIO_PPI_H__
#define __PEI_CPUIO_PPI_H__
#define EFI_PEI_CPU_IO_PPI_INSTALLED_GUID \
{ 0xe6af1f7b, 0xfc3f, 0x46da, {0xa8, 0x28, 0xa3, 0xb4, 0x57, 0xa4, 0x42, 0x82 } }
typedef struct _EFI_PEI_CPU_IO_PPI EFI_PEI_CPU_IO_PPI;
///
/// EFI_PEI_CPU_IO_PPI_WIDTH.
///
typedef enum {
EfiPeiCpuIoWidthUint8,
EfiPeiCpuIoWidthUint16,
EfiPeiCpuIoWidthUint32,
EfiPeiCpuIoWidthUint64,
EfiPeiCpuIoWidthFifoUint8,
EfiPeiCpuIoWidthFifoUint16,
EfiPeiCpuIoWidthFifoUint32,
EfiPeiCpuIoWidthFifoUint64,
EfiPeiCpuIoWidthFillUint8,
EfiPeiCpuIoWidthFillUint16,
EfiPeiCpuIoWidthFillUint32,
EfiPeiCpuIoWidthFillUint64,
EfiPeiCpuIoWidthMaximum
} EFI_PEI_CPU_IO_PPI_WIDTH;
/**
Memory-based access services and I/O-based access services.
@param[in] PeiServices An indirect pointer to the PEI Services Table
published by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Width The width of the access. Enumerated in bytes.
@param[in] Address The physical address of the access.
@param[in] Count The number of accesses to perform.
@param[in, out] Buffer A pointer to the buffer of data.
@retval EFI_SUCCESS The function completed successfully.
@retval EFI_NOT_YET_AVAILABLE The service has not been installed.
**/
typedef
EFI_STATUS
(EFIAPI *EFI_PEI_CPU_IO_PPI_IO_MEM)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN EFI_PEI_CPU_IO_PPI_WIDTH Width,
IN UINT64 Address,
IN UINTN Count,
IN OUT VOID *Buffer
);
///
/// EFI_PEI_CPU_IO_PPI_ACCESS
///
typedef struct {
///
/// This service provides the various modalities of memory and I/O read.
///
EFI_PEI_CPU_IO_PPI_IO_MEM Read;
///
/// This service provides the various modalities of memory and I/O write.
///
EFI_PEI_CPU_IO_PPI_IO_MEM Write;
} EFI_PEI_CPU_IO_PPI_ACCESS;
/**
8-bit I/O read operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@return An 8-bit value returned from the I/O space.
**/
typedef
UINT8
(EFIAPI *EFI_PEI_CPU_IO_PPI_IO_READ8)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address
);
/**
16-bit I/O read operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@return A 16-bit value returned from the I/O space.
**/
typedef
UINT16
(EFIAPI *EFI_PEI_CPU_IO_PPI_IO_READ16)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address
);
/**
32-bit I/O read operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@return A 32-bit value returned from the I/O space.
**/
typedef
UINT32
(EFIAPI *EFI_PEI_CPU_IO_PPI_IO_READ32)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address
);
/**
64-bit I/O read operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@return A 64-bit value returned from the I/O space.
**/
typedef
UINT64
(EFIAPI *EFI_PEI_CPU_IO_PPI_IO_READ64)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address
);
/**
8-bit I/O write operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@param[in] Data The data to write.
**/
typedef
VOID
(EFIAPI *EFI_PEI_CPU_IO_PPI_IO_WRITE8)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address,
IN UINT8 Data
);
/**
16-bit I/O write operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@param[in] Data The data to write.
**/
typedef
VOID
(EFIAPI *EFI_PEI_CPU_IO_PPI_IO_WRITE16)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address,
IN UINT16 Data
);
/**
32-bit I/O write operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@param[in] Data The data to write.
**/
typedef
VOID
(EFIAPI *EFI_PEI_CPU_IO_PPI_IO_WRITE32)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address,
IN UINT32 Data
);
/**
64-bit I/O write operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@param[in] Data The data to write.
**/
typedef
VOID
(EFIAPI *EFI_PEI_CPU_IO_PPI_IO_WRITE64)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address,
IN UINT64 Data
);
/**
8-bit memory read operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@return An 8-bit value returned from the memory space.
**/
typedef
UINT8
(EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_READ8)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address
);
/**
16-bit memory read operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@return A 16-bit value returned from the memory space.
**/
typedef
UINT16
(EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_READ16)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address
);
/**
32-bit memory read operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@return A 32-bit value returned from the memory space.
**/
typedef
UINT32
(EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_READ32)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address
);
/**
64-bit memory read operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@return A 64-bit value returned from the memory space.
**/
typedef
UINT64
(EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_READ64)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address
);
/**
8-bit memory write operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@param[in] Data The data to write.
**/
typedef
VOID
(EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_WRITE8)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address,
IN UINT8 Data
);
/**
16-bit memory write operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@param[in] Data The data to write.
**/
typedef
VOID
(EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_WRITE16)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address,
IN UINT16 Data
);
/**
32-bit memory write operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@param[in] Data The data to write.
**/
typedef
VOID
(EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_WRITE32)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address,
IN UINT32 Data
);
/**
64-bit memory write operations.
@param[in] PeiServices An indirect pointer to the PEI Services Table published
by the PEI Foundation.
@param[in] This The pointer to local data for the interface.
@param[in] Address The physical address of the access.
@param[in] Data The data to write.
**/
typedef
VOID
(EFIAPI *EFI_PEI_CPU_IO_PPI_MEM_WRITE64)(
IN CONST EFI_PEI_SERVICES **PeiServices,
IN CONST EFI_PEI_CPU_IO_PPI *This,
IN UINT64 Address,
IN UINT64 Data
);
///
/// EFI_PEI_CPU_IO_PPI provides a set of memory and I/O-based services.
/// The perspective of the services is that of the processor, not that of the
/// bus or system.
///
struct _EFI_PEI_CPU_IO_PPI {
///
/// Collection of memory-access services.
///
EFI_PEI_CPU_IO_PPI_ACCESS Mem;
///
/// Collection of I/O-access services.
///
EFI_PEI_CPU_IO_PPI_ACCESS Io;
EFI_PEI_CPU_IO_PPI_IO_READ8 IoRead8;
EFI_PEI_CPU_IO_PPI_IO_READ16 IoRead16;
EFI_PEI_CPU_IO_PPI_IO_READ32 IoRead32;
EFI_PEI_CPU_IO_PPI_IO_READ64 IoRead64;
EFI_PEI_CPU_IO_PPI_IO_WRITE8 IoWrite8;
EFI_PEI_CPU_IO_PPI_IO_WRITE16 IoWrite16;
EFI_PEI_CPU_IO_PPI_IO_WRITE32 IoWrite32;
EFI_PEI_CPU_IO_PPI_IO_WRITE64 IoWrite64;
EFI_PEI_CPU_IO_PPI_MEM_READ8 MemRead8;
EFI_PEI_CPU_IO_PPI_MEM_READ16 MemRead16;
EFI_PEI_CPU_IO_PPI_MEM_READ32 MemRead32;
EFI_PEI_CPU_IO_PPI_MEM_READ64 MemRead64;
EFI_PEI_CPU_IO_PPI_MEM_WRITE8 MemWrite8;
EFI_PEI_CPU_IO_PPI_MEM_WRITE16 MemWrite16;
EFI_PEI_CPU_IO_PPI_MEM_WRITE32 MemWrite32;
EFI_PEI_CPU_IO_PPI_MEM_WRITE64 MemWrite64;
};
extern EFI_GUID gEfiPeiCpuIoPpiInstalledGuid;
#endif
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