mirror of https://github.com/acidanthera/audk.git
238 lines
9.1 KiB
C
238 lines
9.1 KiB
C
/** @file
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The internal header file includes the common header files, defines
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internal structure and functions used by FVB module.
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Copyright (c) 2010 - 2014, Intel Corporation. All rights reserved. <BR>
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This program and the accompanying materials are licensed and made available under
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the terms and conditions of the BSD License that accompanies this distribution.
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The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php.
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#ifndef _SMM_FVB_DXE_H_
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#define _SMM_FVB_DXE_H_
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#include <PiDxe.h>
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#include <Protocol/SmmFirmwareVolumeBlock.h>
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#include <Protocol/SmmCommunication.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/DebugLib.h>
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#include <Library/BaseMemoryLib.h>
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#include <Library/UefiLib.h>
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#include <Library/BaseLib.h>
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#include <Library/MemoryAllocationLib.h>
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#include <Library/DevicePathLib.h>
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#include <Guid/EventGroup.h>
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#include "FvbSmmCommon.h"
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#define FVB_DEVICE_SIGNATURE SIGNATURE_32 ('F', 'V', 'B', 'S')
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#define FVB_DEVICE_FROM_THIS(a) CR (a, EFI_FVB_DEVICE, FvbInstance, FVB_DEVICE_SIGNATURE)
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typedef struct {
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MEDIA_FW_VOL_DEVICE_PATH FvDevPath;
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EFI_DEVICE_PATH_PROTOCOL EndDevPath;
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} FV_PIWG_DEVICE_PATH;
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typedef struct {
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MEMMAP_DEVICE_PATH MemMapDevPath;
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EFI_DEVICE_PATH_PROTOCOL EndDevPath;
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} FV_MEMMAP_DEVICE_PATH;
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typedef struct {
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UINTN Signature;
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EFI_DEVICE_PATH_PROTOCOL *DevicePath;
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EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL FvbInstance;
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EFI_SMM_FIRMWARE_VOLUME_BLOCK_PROTOCOL *SmmFvbInstance;
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} EFI_FVB_DEVICE;
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/**
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This function retrieves the attributes and current settings of the block.
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@param[in] This Indicates the EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL instance.
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@param[out] Attributes Pointer to EFI_FVB_ATTRIBUTES_2 in which the attributes
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and current settings are returned. Type EFI_FVB_ATTRIBUTES_2
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is defined in EFI_FIRMWARE_VOLUME_HEADER.
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@retval EFI_SUCCESS The firmware volume attributes were returned.
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**/
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EFI_STATUS
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EFIAPI
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FvbGetAttributes (
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IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
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OUT EFI_FVB_ATTRIBUTES_2 *Attributes
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);
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/**
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Sets Volume attributes. No polarity translations are done.
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@param[in] This Calling context.
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@param[out] Attributes Output buffer which contains attributes.
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@retval EFI_SUCCESS The function always return successfully.
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**/
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EFI_STATUS
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EFIAPI
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FvbSetAttributes (
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IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
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IN OUT EFI_FVB_ATTRIBUTES_2 *Attributes
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);
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/**
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Retrieves the physical address of the device.
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@param[in] This A pointer to EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL.
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@param[out] Address Output buffer containing the address.
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@retval EFI_SUCCESS The function always return successfully.
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**/
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EFI_STATUS
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EFIAPI
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FvbGetPhysicalAddress (
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IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
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OUT EFI_PHYSICAL_ADDRESS *Address
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);
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/**
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Retrieve the size of a logical block.
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@param[in] This Calling context.
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@param[in] Lba Indicates which block to return the size for.
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@param[out] BlockSize A pointer to a caller allocated UINTN in which
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the size of the block is returned.
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@param[out] NumOfBlocks A pointer to a caller allocated UINTN in which the
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number of consecutive blocks starting with Lba is
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returned. All blocks in this range have a size of
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BlockSize.
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@retval EFI_SUCCESS The function always return successfully.
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**/
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EFI_STATUS
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EFIAPI
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FvbGetBlockSize (
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IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
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IN EFI_LBA Lba,
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OUT UINTN *BlockSize,
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OUT UINTN *NumOfBlocks
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);
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/**
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Reads data beginning at Lba:Offset from FV. The Read terminates either
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when *NumBytes of data have been read, or when a block boundary is
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reached. *NumBytes is updated to reflect the actual number of bytes
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written. The write opertion does not include erase. This routine will
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attempt to write only the specified bytes. If the writes do not stick,
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it will return an error.
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@param[in] This Calling context.
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@param[in] Lba Block in which to begin write.
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@param[in] Offset Offset in the block at which to begin write
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@param[in,out] NumBytes On input, indicates the requested write size. On
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output, indicates the actual number of bytes written
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@param[in] Buffer Buffer containing source data for the write.
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@retval EFI_SUCCESS The firmware volume was read successfully and
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contents are in Buffer
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@retval EFI_BAD_BUFFER_SIZE Read attempted across a LBA boundary. On output,
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NumBytes contains the total number of bytes returned
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in Buffer
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@retval EFI_ACCESS_DENIED The firmware volume is in the ReadDisabled state
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@retval EFI_DEVICE_ERROR The block device is not functioning correctly and
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could not be read
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@retval EFI_INVALID_PARAMETER NumBytes or Buffer are NULL
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**/
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EFI_STATUS
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EFIAPI
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FvbRead (
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IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
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IN EFI_LBA Lba,
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IN UINTN Offset,
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IN OUT UINTN *NumBytes,
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OUT UINT8 *Buffer
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);
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/**
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Writes data beginning at Lba:Offset from FV. The write terminates either
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when *NumBytes of data have been written, or when a block boundary is
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reached. *NumBytes is updated to reflect the actual number of bytes
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written. The write opertion does not include erase. This routine will
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attempt to write only the specified bytes. If the writes do not stick,
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it will return an error.
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@param[in] This Calling context.
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@param[in] Lba Block in which to begin write.
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@param[in] Offset Offset in the block at which to begin write.
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@param[in,out] NumBytes On input, indicates the requested write size. On
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output, indicates the actual number of bytes written
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@param[in] Buffer Buffer containing source data for the write.
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@retval EFI_SUCCESS The firmware volume was written successfully
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@retval EFI_BAD_BUFFER_SIZE Write attempted across a LBA boundary. On output,
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NumBytes contains the total number of bytes
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actually written.
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@retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled state
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@retval EFI_DEVICE_ERROR The block device is not functioning correctly and
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could not be written.
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@retval EFI_INVALID_PARAMETER NumBytes or Buffer are NULL.
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**/
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EFI_STATUS
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EFIAPI
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FvbWrite (
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IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
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IN EFI_LBA Lba,
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IN UINTN Offset,
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IN OUT UINTN *NumBytes,
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IN UINT8 *Buffer
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);
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/**
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The EraseBlock() function erases one or more blocks as denoted by the
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variable argument list. The entire parameter list of blocks must be verified
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prior to erasing any blocks. If a block is requested that does not exist
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within the associated firmware volume (it has a larger index than the last
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block of the firmware volume), the EraseBlock() function must return
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EFI_INVALID_PARAMETER without modifying the contents of the firmware volume.
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@param[in] This Calling context.
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@param[in] ... Starting LBA followed by Number of Lba to erase.
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a -1 to terminate the list.
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@retval EFI_SUCCESS The erase request was successfully completed.
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@retval EFI_ACCESS_DENIED The firmware volume is in the WriteDisabled state
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@retval EFI_DEVICE_ERROR The block device is not functioning correctly and
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could not be written. Firmware device may have been
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partially erased.
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**/
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EFI_STATUS
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EFIAPI
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FvbEraseBlocks (
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IN CONST EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
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...
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);
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#endif
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