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/** @file
The internal header file includes the common header files, defines
internal structure and functions used by FVB module.
Copyright (c) 2015, 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.
**/
#ifndef _SMM_FVB_DXE_H_
#define _SMM_FVB_DXE_H_
#include <PiDxe.h>
#include <Protocol/SmmFirmwareVolumeBlock.h>
#include <Protocol/SmmCommunication.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/DebugLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/UefiLib.h>
#include <Library/BaseLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/DevicePathLib.h>
#include <Guid/EventGroup.h>
#include "FvbSmmCommon.h"
#define FVB_DEVICE_SIGNATURE SIGNATURE_32 ('F', 'V', 'B', 'S')
#define FVB_DEVICE_FROM_THIS(a) CR (a, EFI_FVB_DEVICE, FvbInstance, FVB_DEVICE_SIGNATURE)
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;
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL FvbInstance;
EFI_SMM_FIRMWARE_VOLUME_BLOCK_PROTOCOL *SmmFvbInstance;
UINTN NumOfBlocks;
} EFI_FVB_DEVICE;
/**
This function retrieves the attributes and current settings of the block.
@param[in] This Indicates the EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL instance.
@param[out] Attributes Pointer to EFI_FVB_ATTRIBUTES_2 in which the attributes
and current settings are returned. Type EFI_FVB_ATTRIBUTES_2
is defined in EFI_FIRMWARE_VOLUME_HEADER.
@retval EFI_SUCCESS The firmware volume attributes were returned.
**/
EFI_STATUS
EFIAPI
FvbGetAttributes (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
OUT EFI_FVB_ATTRIBUTES_2 *Attributes
);
/**
Sets Volume attributes. No polarity translations are done.
@param[in] This Calling context
@param[out] Attributes Output buffer which contains attributes
@retval EFI_SUCCESS The function always return successfully.
**/
EFI_STATUS
EFIAPI
FvbSetAttributes (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN OUT EFI_FVB_ATTRIBUTES_2 *Attributes
);
/**
Retrieves the physical address of the device.
@param[in] This A pointer to EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL.
@param[out] Address Output buffer containing the address.
@retval EFI_SUCCESS The function always return successfully.
**/
EFI_STATUS
EFIAPI
FvbGetPhysicalAddress (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
OUT EFI_PHYSICAL_ADDRESS *Address
);
/**
Retrieve the size of a logical block
@param[in] This Calling context
@param[in] Lba Indicates which block to return the size for.
@param[out] BlockSize A pointer to a caller allocated UINTN in which
the size of the block is returned
@param[out] NumOfBlocks A pointer to a caller allocated UINTN in which the
number of consecutive blocks starting with Lba is
returned. All blocks in this range have a size of
BlockSize
@retval EFI_SUCCESS The function always return successfully.
**/
EFI_STATUS
EFIAPI
FvbGetBlockSize (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN EFI_LBA Lba,
OUT UINTN *BlockSize,
OUT UINTN *NumOfBlocks
);
/**
Reads data beginning at Lba:Offset from FV. The Read terminates either
when *NumBytes of data have been read, or when a block boundary is
reached. *NumBytes is updated to reflect the actual number of bytes
written. The write opertion does not include erase. This routine will
attempt to write only the specified bytes. If the writes do not stick,
it will return an error.
@param[in] This Calling context
@param[in] Lba Block in which to begin write
@param[in] Offset Offset in the block at which to begin write
@param[in, out] NumBytes On input, indicates the requested write size. On
output, indicates the actual number of bytes written
@param[in] Buffer Buffer containing source data for the write.
Returns:
@retval EFI_SUCCESS The firmware volume was read successfully and
contents are in Buffer
@retval EFI_BAD_BUFFER_SIZE Read attempted across a LBA boundary. On output,
NumBytes contains the total number of bytes returned
in Buffer
@retval EFI_ACCESS_DENIED The firmware volume is in the ReadDisabled state
@retval EFI_DEVICE_ERROR The block device is not functioning correctly and
could not be read
@retval EFI_INVALID_PARAMETER NumBytes or Buffer are NULL
**/
EFI_STATUS
EFIAPI
FvbRead (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN EFI_LBA Lba,
IN UINTN Offset,
IN OUT UINTN *NumBytes,
OUT UINT8 *Buffer
);
/**
Writes data beginning at Lba:Offset from FV. The write terminates either
when *NumBytes of data have been written, or when a block boundary is
reached. *NumBytes is updated to reflect the actual number of bytes
written. The write opertion does not include erase. This routine will
attempt to write only the specified bytes. If the writes do not stick,
it will return an error.
@param[in] This Calling context
@param[in] Lba Block in which to begin write
@param[in] Offset Offset in the block at which to begin write
@param[in, out] NumBytes On input, indicates the requested write size. On
output, indicates the actual number of bytes written
@param[in] Buffer Buffer containing source data for the write.
@retval EFI_SUCCESS The firmware volume was written successfully
@retval EFI_BAD_BUFFER_SIZE Write attempted across a LBA boundary. On output,
NumBytes contains the total number of bytes
actually written
@retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled state
@retval EFI_DEVICE_ERROR The block device is not functioning correctly and
could not be written
@retval EFI_INVALID_PARAMETER NumBytes or Buffer are NULL
**/
EFI_STATUS
EFIAPI
FvbWrite (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
IN EFI_LBA Lba,
IN UINTN Offset,
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer
);
/**
The EraseBlock() function erases one or more blocks as denoted by the
variable argument list. The entire parameter list of blocks must be verified
prior to erasing any blocks. If a block is requested that does not exist
within the associated firmware volume (it has a larger index than the last
block of the firmware volume), the EraseBlock() function must return
EFI_INVALID_PARAMETER without modifying the contents of the firmware volume.
@param[in] This Calling context
@param[in] ... Starting LBA followed by Number of Lba to erase.
a -1 to terminate the list.
@retval EFI_SUCCESS The erase request was successfully completed
@retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled state
@retval EFI_DEVICE_ERROR The block device is not functioning correctly and
could not be written. Firmware device may have been
partially erased
**/
EFI_STATUS
EFIAPI
FvbEraseBlocks (
IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
...
);
#endif
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