system76-edk2/OvmfPkg/QemuFlashFvbServicesRuntimeDxe/FwBlockService.h

/**@file

  Copyright (c) 2006, 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 which 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.

  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

typedef struct {
  UINTN                       FvBase;
  UINTN                       NumOfBlocks;
  EFI_FIRMWARE_VOLUME_HEADER  VolumeHeader;
} EFI_FW_VOL_INSTANCE;

typedef struct {
  UINT32              NumFv;
  EFI_FW_VOL_INSTANCE *FvInstance;
} ESAL_FWB_GLOBAL;

extern ESAL_FWB_GLOBAL *mFvbModuleGlobal;

//
// 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 {
  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 {
  UINTN                               Signature;
  EFI_DEVICE_PATH_PROTOCOL            *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
FvbSetVolumeAttributes (
  IN UINTN                                Instance,
  IN OUT EFI_FVB_ATTRIBUTES_2             *Attributes,
  IN ESAL_FWB_GLOBAL                      *Global
  );

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

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

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
  );

//
// 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 CONST EFI_LBA                                     Lba,
  OUT UINTN                                       *BlockSize,
  OUT UINTN                                       *NumOfBlocks
  );

EFI_STATUS
EFIAPI
FvbProtocolRead (
  IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL           *This,
  IN CONST EFI_LBA                                      Lba,
  IN CONST 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,
  ...
  );

//
// The following functions have different implementations dependent on the
// module type chosen for building this driver.
//
VOID
InstallProtocolInterfaces (
  IN EFI_FW_VOL_BLOCK_DEVICE *FvbDevice
  );

VOID
InstallVirtualAddressChangeHandler (
  VOID
  );

EFI_STATUS
MarkIoMemoryRangeForRuntimeAccess (
  IN EFI_PHYSICAL_ADDRESS   BaseAddress,
  IN UINTN                  Length
  );

#endif