FwVolBlock.h

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#ifndef _FWVOL_BLOCK_H_
#define _FWVOL_BLOCK_H_
 
#define FVB_DEVICE_SIGNATURE  SIGNATURE_32('_','F','V','B')
 
typedef struct {
  UINTN    Base;
  UINTN    Length;
} LBA_CACHE;
 
typedef struct {
  MEMMAP_DEVICE_PATH          MemMapDevPath;
  EFI_DEVICE_PATH_PROTOCOL    EndDevPath;
} FV_MEMMAP_DEVICE_PATH;
 
//
// UEFI Specification define FV device path format if FV provide name guid in extension header
//
typedef struct {
  MEDIA_FW_VOL_DEVICE_PATH    FvDevPath;
  EFI_DEVICE_PATH_PROTOCOL    EndDevPath;
} FV_PIWG_DEVICE_PATH;
 
typedef struct {
  UINTN                                 Signature;
  EFI_HANDLE                            Handle;
  EFI_DEVICE_PATH_PROTOCOL              *DevicePath;
  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL    FwVolBlockInstance;
  UINTN                                 NumBlocks;
  LBA_CACHE                             *LbaCache;
  UINT32                                FvbAttributes;
  EFI_PHYSICAL_ADDRESS                  BaseAddress;
  UINT32                                AuthenticationStatus;
} EFI_FW_VOL_BLOCK_DEVICE;
 
#define FVB_DEVICE_FROM_THIS(a) \
  CR(a, EFI_FW_VOL_BLOCK_DEVICE, FwVolBlockInstance, FVB_DEVICE_SIGNATURE)
 
EFI_STATUS
EFIAPI
FwVolBlockGetAttributes (
  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
  OUT       EFI_FVB_ATTRIBUTES_2                *Attributes
  );
 
EFI_STATUS
EFIAPI
FwVolBlockSetAttributes (
  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
  IN CONST  EFI_FVB_ATTRIBUTES_2                *Attributes
  );
 
EFI_STATUS
EFIAPI
FwVolBlockEraseBlock (
  IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
  ...
  );
 
EFI_STATUS
EFIAPI
FwVolBlockReadBlock (
  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
  IN CONST  EFI_LBA                             Lba,
  IN CONST  UINTN                               Offset,
  IN OUT    UINTN                               *NumBytes,
  IN OUT    UINT8                               *Buffer
  );
 
EFI_STATUS
EFIAPI
FwVolBlockWriteBlock (
  IN     EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
  IN     EFI_LBA                             Lba,
  IN     UINTN                               Offset,
  IN OUT UINTN                               *NumBytes,
  IN     UINT8                               *Buffer
  );
 
EFI_STATUS
EFIAPI
FwVolBlockGetPhysicalAddress (
  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
  OUT       EFI_PHYSICAL_ADDRESS                *Address
  );
 
EFI_STATUS
EFIAPI
FwVolBlockGetBlockSize (
  IN CONST  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  *This,
  IN CONST  EFI_LBA                             Lba,
  IN OUT    UINTN                               *BlockSize,
  IN OUT    UINTN                               *NumberOfBlocks
  );
 
#endif