audk/MdeModulePkg/Include/Protocol/EsrtManagement.h

/** @file
  The Esrt Management Protocol used to register/set/update an updatable firmware resource .

Copyright (c) 2015, 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.

**/

#ifndef _ESRT_MANAGEMENT_H_
#define _ESRT_MANAGEMENT_H_

#include <Guid/SystemResourceTable.h>

///
/// Global ID for the ESRT_MANAGEMENT_PROTOCOL.
///
#define ESRT_MANAGEMENT_PROTOCOL_GUID \
  { \
    0xa340c064, 0x723c, 0x4a9c, { 0xa4, 0xdd, 0xd5, 0xb4, 0x7a, 0x26, 0xfb, 0xb0 } \
  }

///
/// Forward declaration for the _ESRT_MANAGEMENT_PROTOCOL.
///
typedef struct _ESRT_MANAGEMENT_PROTOCOL  ESRT_MANAGEMENT_PROTOCOL;

/**
  Get Variable name and data by Esrt Entry FwClass 

  @param[in]       FwClass                FwClass of Esrt entry to get  
  @param[in out]  Entry                   Esrt entry returned 
  
  @retval EFI_SUCCESS                  The variable saving this Esrt Entry exists.
  @retval EF_NOT_FOUND                   No correct variable found.

**/
typedef
EFI_STATUS
(EFIAPI *GET_ESRT_ENTRY)(
  IN     EFI_GUID                  *FwClass,
  IN OUT EFI_SYSTEM_RESOURCE_ENTRY *Entry
  );
 

/**
  Update one ESRT entry in ESRT Cache.

  @param[in]  Entry                         Esrt entry to be updated
  
  @retval EFI_SUCCESS                   Successfully update an ESRT entry in cache.
  @retval EFI_INVALID_PARAMETER  Entry does't exist in ESRT Cache
  @retval EFI_WRITE_PROTECTED     ESRT Cache repositoy is locked

**/
typedef
EFI_STATUS
(EFIAPI *UPDATE_ESRT_ENTRY)(
  IN EFI_SYSTEM_RESOURCE_ENTRY *Entry
  );


/**
  Non-FMP instance to unregister Esrt Entry from ESRT Cache. 

  @param[in]    FwClass                FwClass of Esrt entry to Unregister  
  
  @retval EFI_SUCCESS         Insert all entries Successfully 
  @retval EFI_NOT_FOUND     FwClass does not exsit

**/
typedef
EFI_STATUS
(EFIAPI *UNREGISTER_ESRT_ENTRY)(
  IN  EFI_GUID        *FwClass
  );


/**
  Non-FMP instance to register one ESRT entry into ESRT Cache.

  @param[in]  Entry                Esrt entry to be set

  @retval EFI_SUCCESS                   Successfully set a variable.
  @retval EFI_INVALID_PARAMETER  ESRT Entry is already exist
  @retval EFI_OUT_OF_RESOURCES  Non-FMP ESRT repository is full

**/
typedef
EFI_STATUS
(EFIAPI *REGISTER_ESRT_ENTRY)(
  IN EFI_SYSTEM_RESOURCE_ENTRY *Entry
  );


/**
  This function syn up Cached ESRT with data from FMP instances
  Function should be called after Connect All in order to locate all FMP protocols
  installed

  @retval EFI_SUCCESS                      Successfully sync cache repository from FMP instances
  @retval EFI_NOT_FOUND                   No FMP Instance are found
  @retval EFI_OUT_OF_RESOURCES     Resource allocaton fail

**/
typedef
EFI_STATUS
(EFIAPI *SYNC_ESRT_FMP)(
  VOID
  );


/**
  This function locks up Esrt repository to be readonly. It should be called 
  before gEfiEndOfDxeEventGroupGuid event signaled

  @retval EFI_SUCCESS              Locks up FMP Non-FMP repository successfully 

**/
typedef
EFI_STATUS
(EFIAPI *LOCK_ESRT_REPOSITORY)(
  VOID
  );


struct _ESRT_MANAGEMENT_PROTOCOL {
  GET_ESRT_ENTRY        GetEsrtEntry;
  UPDATE_ESRT_ENTRY     UpdateEsrtEntry;
  REGISTER_ESRT_ENTRY   RegisterEsrtEntry;
  UNREGISTER_ESRT_ENTRY UnRegisterEsrtEntry;
  SYNC_ESRT_FMP         SyncEsrtFmp;
  LOCK_ESRT_REPOSITORY  LockEsrtRepository;
};

extern EFI_GUID gEsrtManagementProtocolGuid;

#endif // #ifndef _ESRT_MANAGEMENT_H_