diff options
Diffstat (limited to 'MdePkg/Include/Protocol/SmmCpuIo2.h')
-rw-r--r-- | MdePkg/Include/Protocol/SmmCpuIo2.h | 87 |
1 files changed, 13 insertions, 74 deletions
diff --git a/MdePkg/Include/Protocol/SmmCpuIo2.h b/MdePkg/Include/Protocol/SmmCpuIo2.h index b580faf3cb55d..b9d12bca74ef4 100644 --- a/MdePkg/Include/Protocol/SmmCpuIo2.h +++ b/MdePkg/Include/Protocol/SmmCpuIo2.h @@ -3,93 +3,32 @@ This protocol provides CPU I/O and memory access within SMM. - 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. + Copyright (c) 2009 - 2017, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent **/ #ifndef _SMM_CPU_IO2_H_ #define _SMM_CPU_IO2_H_ -#define EFI_SMM_CPU_IO2_PROTOCOL_GUID \ - { \ - 0x3242A9D8, 0xCE70, 0x4AA0, { 0x95, 0x5D, 0x5E, 0x7B, 0x14, 0x0D, 0xE4, 0xD2 } \ - } +#include <Protocol/MmCpuIo.h> + +#define EFI_SMM_CPU_IO2_PROTOCOL_GUID EFI_MM_CPU_IO_PROTOCOL_GUID -typedef struct _EFI_SMM_CPU_IO2_PROTOCOL EFI_SMM_CPU_IO2_PROTOCOL; +typedef EFI_MM_CPU_IO_PROTOCOL EFI_SMM_CPU_IO2_PROTOCOL; /// /// Width of the SMM CPU I/O operations /// -typedef enum { - SMM_IO_UINT8 = 0, - SMM_IO_UINT16 = 1, - SMM_IO_UINT32 = 2, - SMM_IO_UINT64 = 3 -} EFI_SMM_IO_WIDTH; - -/** - Provides the basic memory and I/O interfaces used toabstract accesses to devices. +#define SMM_IO_UINT8 MM_IO_UINT8 +#define SMM_IO_UINT16 MM_IO_UINT16 +#define SMM_IO_UINT32 MM_IO_UINT32 +#define SMM_IO_UINT64 MM_IO_UINT64 - The I/O operations are carried out exactly as requested. The caller is - responsible for any alignment and I/O width issues that the bus, device, - platform, or type of I/O might require. +typedef EFI_MM_IO_WIDTH EFI_SMM_IO_WIDTH; +typedef EFI_MM_CPU_IO EFI_SMM_CPU_IO2; - @param[in] This The EFI_SMM_CPU_IO2_PROTOCOL instance. - @param[in] Width Signifies the width of the I/O operations. - @param[in] Address The base address of the I/O operations. The caller is - responsible for aligning the Address if required. - @param[in] Count The number of I/O operations to perform. - @param[in,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 device. - @retval EFI_UNSUPPORTED The Address is not valid for this system. - @retval EFI_INVALID_PARAMETER Width or Count, or both, were invalid. - @retval EFI_OUT_OF_RESOURCES The request could not be completed due to a lack - of resources. -**/ -typedef -EFI_STATUS -(EFIAPI *EFI_SMM_CPU_IO2)( - IN CONST EFI_SMM_CPU_IO2_PROTOCOL *This, - IN EFI_SMM_IO_WIDTH Width, - IN UINT64 Address, - IN UINTN Count, - IN OUT VOID *Buffer - ); - -typedef struct { - /// - /// This service provides the various modalities of memory and I/O read. - /// - EFI_SMM_CPU_IO2 Read; - /// - /// This service provides the various modalities of memory and I/O write. - /// - EFI_SMM_CPU_IO2 Write; -} EFI_SMM_IO_ACCESS2; - -/// -/// SMM CPU I/O Protocol provides CPU I/O and memory access within SMM. -/// -struct _EFI_SMM_CPU_IO2_PROTOCOL { - /// - /// Allows reads and writes to memory-mapped I/O space. - /// - EFI_SMM_IO_ACCESS2 Mem; - /// - /// Allows reads and writes to I/O space. - /// - EFI_SMM_IO_ACCESS2 Io; -}; +typedef EFI_MM_IO_ACCESS EFI_SMM_IO_ACCESS2; extern EFI_GUID gEfiSmmCpuIo2ProtocolGuid; |