clean up PCD settting for EdkModulePkg.fpd and EdkNt32Pkg.fpd

[mirror_edk2.git] / EdkModulePkg / Include / Protocol / FaultTolerantWriteLite.h

/*++\r
\r
Copyright (c) 2006, Intel Corporation                                                         \r
All rights reserved. This program and the accompanying materials                          \r
are licensed and made available under the terms and conditions of the BSD License         \r
which accompanies this distribution.  The full text of the license may be found at        \r
http://opensource.org/licenses/bsd-license.php                                            \r
                                                                                          \r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     \r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             \r
\r
Module Name:\r
\r
  FaultTolerantWriteLite.h\r
\r
Abstract:\r
\r
  This is a simple fault tolerant write driver, based on PlatformFd library.\r
  And it only supports write BufferSize <= SpareAreaLength.\r
\r
--*/\r
\r
#ifndef _FW_FAULT_TOLERANT_WRITE_LITE_PROTOCOL_H_\r
#define _FW_FAULT_TOLERANT_WRITE_LITE_PROTOCOL_H_\r
\r
#define EFI_FTW_LITE_PROTOCOL_GUID \\r
{ 0x3f557189, 0x8dae, 0x45ae, {0xa0, 0xb3, 0x2b, 0x99, 0xca, 0x7a, 0xa7, 0xa0 } }\r
\r
//\r
// Forward reference for pure ANSI compatability\r
//\r
typedef struct _EFI_FTW_LITE_PROTOCOL EFI_FTW_LITE_PROTOCOL;\r
\r
//\r
// Protocol API definitions\r
//\r
\r
typedef\r
EFI_STATUS\r
(EFIAPI * EFI_FTW_LITE_WRITE) (\r
  IN EFI_FTW_LITE_PROTOCOL             *This,\r
  IN EFI_HANDLE                        FvbHandle,\r
  IN EFI_LBA                           Lba,\r
  IN UINTN                             Offset,\r
  IN UINTN                             *NumBytes,\r
  IN VOID                              *Buffer\r
  );\r
/*++\r
\r
Routine Description:\r
\r
  Starts a target block update. This records information about the write \r
  in fault tolerant storage and will complete the write in a recoverable \r
  manner, ensuring at all times that either the original contents or \r
  the modified contents are available.\r
\r
Arguments:\r
\r
  This             - Calling context\r
  FvBlockHandle    - The handle of FVB protocol that provides services for \r
                     reading, writing, and erasing the target block.\r
  Lba              - The logical block address of the target block.  \r
  Offset           - The offset within the target block to place the data.\r
  Length           - The number of bytes to write to the target block.\r
  Buffer           - The data to write.\r
\r
Returns:\r
\r
  EFI_SUCCESS          - The function completed successfully\r
  EFI_ABORTED          - The function could not complete successfully.\r
  EFI_BAD_BUFFER_SIZE  - The write would span a block boundary, \r
                         which is not a valid action.\r
  EFI_ACCESS_DENIED    - No writes have been allocated.\r
  EFI_NOT_READY        - The last write has not been completed.  \r
                         Restart () must be called to complete it.\r
\r
--*/\r
\r
//\r
// Protocol declaration\r
//\r
struct _EFI_FTW_LITE_PROTOCOL {\r
  EFI_FTW_LITE_WRITE               Write;\r
};\r
\r
extern EFI_GUID gEfiFaultTolerantWriteLiteProtocolGuid;\r
\r
#endif\r