system76-edk2/EmulatorPkg/FvbServicesRuntimeDxe/FwBlockService.h

/*++ @file
  Firmware volume block driver for Intel Firmware Hub (FWH) device

Copyright (c) 2006 - 2009, Intel Corporation. All rights reserved.<BR>
Portions copyright (c) 2011, Apple Inc. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#ifndef _FW_BLOCK_SERVICE_H
#define _FW_BLOCK_SERVICE_H

//
// BugBug: Add documentation here for data structure!!!!
//
#define FVB_PHYSICAL  0
#define FVB_VIRTUAL   1

typedef struct {
  EFI_LOCK                    FvbDevLock;
  UINTN                       FvBase[2];
  UINTN                       NumOfBlocks;
  EFI_FIRMWARE_VOLUME_HEADER  VolumeHeader;
} EFI_FW_VOL_INSTANCE;

typedef struct {
  UINT32              NumFv;
  EFI_FW_VOL_INSTANCE *FvInstance[2];
} ESAL_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', 'N')

typedef struct {
  MEMMAP_DEVICE_PATH        MemMapDevPath;
  EFI_DEVICE_PATH_PROTOCOL  EndDevPath;
} FV_DEVICE_PATH;

typedef struct {
  UINTN                               Signature;
  FV_DEVICE_PATH                      DevicePath;
  UINTN                               Instance;
  EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL  FwVolBlockInstance;
} EFI_FW_VOL_BLOCK_DEVICE;

EFI_STATUS
GetFvbInfo (
  IN  UINT64                            FvLength,
  OUT EFI_FIRMWARE_VOLUME_HEADER        **FvbInfo
  )
;

EFI_STATUS
FvbReadBlock (
  IN UINTN                                Instance,
  IN EFI_LBA                              Lba,
  IN UINTN                                BlockOffset,
  IN OUT UINTN                            *NumBytes,
  IN UINT8                                *Buffer,
  IN ESAL_FWB_GLOBAL                      *Global,
  IN BOOLEAN                              Virtual
  )
;

EFI_STATUS
FvbWriteBlock (
  IN UINTN                                Instance,
  IN EFI_LBA                              Lba,
  IN UINTN                                BlockOffset,
  IN OUT UINTN                            *NumBytes,
  IN UINT8                                *Buffer,
  IN ESAL_FWB_GLOBAL                      *Global,
  IN BOOLEAN                              Virtual
  )
;

EFI_STATUS
FvbEraseBlock (
  IN UINTN                                Instance,
  IN EFI_LBA                              Lba,
  IN ESAL_FWB_GLOBAL                      *Global,
  IN BOOLEAN                              Virtual
  )
;

EFI_STATUS
FvbSetVolumeAttributes (
  IN UINTN                                Instance,
  IN OUT EFI_FVB_ATTRIBUTES_2             *Attributes,
  IN ESAL_FWB_GLOBAL                      *Global,
  IN BOOLEAN                              Virtual
  )
;

EFI_STATUS
FvbGetVolumeAttributes (
  IN UINTN                                Instance,
  OUT EFI_FVB_ATTRIBUTES_2                *Attributes,
  IN ESAL_FWB_GLOBAL                      *Global,
  IN BOOLEAN                              Virtual
  )
;

EFI_STATUS
FvbGetPhysicalAddress (
  IN UINTN                                Instance,
  OUT EFI_PHYSICAL_ADDRESS                *Address,
  IN ESAL_FWB_GLOBAL                      *Global,
  IN BOOLEAN                              Virtual
  )
;

EFI_STATUS
EFIAPI
FvbInitialize (
  IN EFI_HANDLE         ImageHandle,
  IN EFI_SYSTEM_TABLE   *SystemTable
  )
;


VOID
EFIAPI
FvbClassAddressChangeEvent (
  IN EFI_EVENT        Event,
  IN VOID             *Context
  )
;

EFI_STATUS
FvbGetLbaAddress (
  IN  UINTN                               Instance,
  IN  EFI_LBA                             Lba,
  OUT UINTN                               *LbaAddress,
  OUT UINTN                               *LbaLength,
  OUT UINTN                               *NumOfBlocks,
  IN  ESAL_FWB_GLOBAL                     *Global,
  IN  BOOLEAN                             Virtual
  )
;

//
// 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,
  IN 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