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/** @file
The header file for Firmware volume block driver.
Copyright (c) 2014 - 2021, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#ifndef FW_BLOCK_SERVICE_H_
#define FW_BLOCK_SERVICE_H_
#include <Guid/EventGroup.h>
#include <Guid/FirmwareFileSystem2.h>
#include <Guid/SystemNvDataGuid.h>
#include <Guid/VariableFormat.h>
#include <Protocol/DevicePath.h>
#include <Protocol/FirmwareVolumeBlock.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiLib.h>
#include <Library/BaseLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/IoLib.h>
#include <Library/CacheMaintenanceLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/PcdLib.h>
#include <Library/FlashDeviceLib.h>
#include <Library/DevicePathLib.h>
#include <Library/HobLib.h>
#include <Library/DxeServicesLib.h>
#include <Guid/NvVariableInfoGuid.h>
#include <Register/ArchitecturalMsr.h>
//
// Define two helper macro to extract the Capability field or Status field in FVB
// bit fields
//
#define EFI_FVB2_CAPABILITIES (EFI_FVB2_READ_DISABLED_CAP |\
EFI_FVB2_READ_ENABLED_CAP | \
EFI_FVB2_WRITE_DISABLED_CAP | \
EFI_FVB2_WRITE_ENABLED_CAP | \
EFI_FVB2_LOCK_CAP \
)
#define EFI_FVB2_STATUS (EFI_FVB2_READ_STATUS | EFI_FVB2_WRITE_STATUS | EFI_FVB2_LOCK_STATUS)
typedef struct {
UINTN FvBase;
UINTN NumOfBlocks;
//
// Note!!!: VolumeHeader must be the last element
// of the structure.
//
EFI_FIRMWARE_VOLUME_HEADER VolumeHeader;
} EFI_FW_VOL_INSTANCE;
typedef struct {
EFI_FW_VOL_INSTANCE *FvInstance;
UINT32 NumFv;
UINT32 Flags;
} FWB_GLOBAL;
//
// Fvb Protocol instance data
//
#define FVB_DEVICE_FROM_THIS(a) CR(a, EFI_FW_VOL_BLOCK_DEVICE, FwVolBlockInstance, FVB_DEVICE_SIGNATURE)
#define FVB_EXTEND_DEVICE_FROM_THIS(a) CR(a, EFI_FW_VOL_BLOCK_DEVICE, FvbExtension, FVB_DEVICE_SIGNATURE)
#define FVB_DEVICE_SIGNATURE SIGNATURE_32('F','V','B','C')
typedef struct {
MEDIA_FW_VOL_DEVICE_PATH FvDevPath;
EFI_DEVICE_PATH_PROTOCOL EndDevPath;
} FV_PIWG_DEVICE_PATH;
typedef struct {
MEMMAP_DEVICE_PATH MemMapDevPath;
EFI_DEVICE_PATH_PROTOCOL EndDevPath;
} FV_MEMMAP_DEVICE_PATH;
typedef struct {
UINT32 Signature;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
UINTN Instance;
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL FwVolBlockInstance;
} EFI_FW_VOL_BLOCK_DEVICE;
/**
Get a heathy FV header used for variable store recovery
@retval The FV header.
**/
EFI_FIRMWARE_VOLUME_HEADER *
GetFvHeaderTemplate (
VOID
);
EFI_STATUS
InitVariableStore (
VOID
);
//
// Protocol APIs
//
EFI_STATUS
EFIAPI
FvbProtocolGetAttributes (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
OUT EFI_FVB_ATTRIBUTES_2 *Attributes
);
EFI_STATUS
EFIAPI
FvbProtocolSetAttributes (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN OUT EFI_FVB_ATTRIBUTES_2 *Attributes
);
EFI_STATUS
EFIAPI
FvbProtocolGetPhysicalAddress (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
OUT EFI_PHYSICAL_ADDRESS *Address
);
EFI_STATUS
EFIAPI
FvbProtocolGetBlockSize (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN EFI_LBA Lba,
OUT UINTN *BlockSize,
OUT UINTN *NumOfBlocks
);
EFI_STATUS
EFIAPI
FvbProtocolRead (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN EFI_LBA Lba,
IN UINTN Offset,
IN OUT UINTN *NumBytes,
OUT UINT8 *Buffer
);
EFI_STATUS
EFIAPI
FvbProtocolWrite (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN EFI_LBA Lba,
IN UINTN Offset,
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer
);
EFI_STATUS
EFIAPI
FvbProtocolEraseBlocks (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
...
);
EFI_FW_VOL_INSTANCE *
GetFvbInstance (
IN UINTN Instance
);
EFI_STATUS
InstallFvbProtocol (
IN EFI_FW_VOL_INSTANCE *FwhInstance,
IN UINTN InstanceNum
);
EFI_STATUS
FvbInitialize (
VOID
);
extern FWB_GLOBAL mFvbModuleGlobal;
extern EFI_FW_VOL_BLOCK_DEVICE mFvbDeviceTemplate;
extern FV_MEMMAP_DEVICE_PATH mFvMemmapDevicePathTemplate;
extern FV_PIWG_DEVICE_PATH mFvPIWGDevicePathTemplate;
#endif
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