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/*++
Copyright (c) 2006, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
Module Name:
FwBlockService.h
Abstract:
Firmware volume block driver for Intel Firmware Hub (FWH) device
--*/
#ifndef _FW_BLOCK_SERVICE_H
#define _FW_BLOCK_SERVICE_H
//
// Fvb Protocol instance data
//
#define FVB_DEVICE_FROM_THIS(a) CR (a, EFI_FW_VOL_BLOCK_DEVICE, FwVolBlockInstance, FVB_DEVICE_SIGNATURE)
#define FVB_DEVICE_SIGNATURE SIGNATURE_32 ('F', 'V', 'B', 'N')
#pragma pack (1)
typedef struct {
EFI_FIRMWARE_VOLUME_HEADER FvHdr;
EFI_FV_BLOCK_MAP_ENTRY EndBlockMap;
VARIABLE_STORE_HEADER VarHdr;
} FVB_FV_HDR_AND_VARS_TEMPLATE;
typedef struct {
MEMMAP_DEVICE_PATH MemMapDevPath;
EFI_DEVICE_PATH_PROTOCOL EndDevPath;
} FV_DEVICE_PATH;
#pragma pack ()
typedef struct {
UINTN Signature;
FV_DEVICE_PATH DevicePath;
VOID *BufferPtr;
UINTN BlockSize;
UINTN Size;
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL FwVolBlockInstance;
} EFI_FW_VOL_BLOCK_DEVICE;
//
// Constants
//
#define EMU_FVB_BLOCK_SIZE \
EFI_PAGE_SIZE
#define EMU_FVB_NUM_SPARE_BLOCKS \
EFI_SIZE_TO_PAGES ((UINTN)FixedPcdGet32 (PcdFlashNvStorageFtwSpareSize))
#define EMU_FVB_NUM_TOTAL_BLOCKS \
(2 * EMU_FVB_NUM_SPARE_BLOCKS)
#define EMU_FVB_SIZE \
(EMU_FVB_NUM_TOTAL_BLOCKS * EMU_FVB_BLOCK_SIZE)
#define FTW_WRITE_QUEUE_SIZE \
(FixedPcdGet32 (PcdFlashNvStorageFtwWorkingSize) - \
sizeof (EFI_FAULT_TOLERANT_WORKING_BLOCK_HEADER))
#define EMU_FV_HEADER_LENGTH OFFSET_OF (FVB_FV_HDR_AND_VARS_TEMPLATE, VarHdr)
#define NOT_ERASED_BIT 0
#define ERASED_BIT 1
#define ERASED_UINT8 0xff
#define ERASED_UINT32 0xffffffff
//
// 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 *NumberOfBlocks
)
;
EFI_STATUS
EFIAPI
FvbProtocolRead (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN EFI_LBA Lba,
IN UINTN Offset,
IN OUT UINTN *NumBytes,
IN 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,
...
)
;
#endif
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