/*++ Copyright (c) 2004 - 2009, Intel Corporation All rights reserved. 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: FirmwareVolumeBlock.h Abstract: Firmware Volume Block protocol as defined in the Tiano Firmware Volume specification. Low level firmware device access routines to abstract firmware device hardware. --*/ #ifndef _FW_VOL_BLOCK_H_ #define _FW_VOL_BLOCK_H_ #include "EfiFirmwareVolumeHeader.h" // // The following GUID value has been changed to EFI_FIRMWARE_VOLUME_BLOCK2_PROTOCOL_GUID in // PI 1.2 spec on purpose. This will force all platforms built with EdkCompatibilityPkg // produce FVB 2 protocol. // #define EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL_GUID \ { \ 0x8f644fa9, 0xe850, 0x4db1, {0x9c, 0xe2, 0xb, 0x44, 0x69, 0x8e, 0x8d, 0xa4 } \ } EFI_FORWARD_DECLARATION (EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL); typedef EFI_STATUS (EFIAPI *EFI_FVB_GET_ATTRIBUTES) ( IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL * This, OUT EFI_FVB_ATTRIBUTES * Attributes ) /*++ Routine Description: Retrieves Volume attributes. No polarity translations are done. Arguments: This - Calling context Attributes - output buffer which contains attributes Returns: EFI_INVALID_PARAMETER EFI_SUCCESS --*/ ; typedef EFI_STATUS (EFIAPI *EFI_FVB_SET_ATTRIBUTES) ( IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL * This, IN OUT EFI_FVB_ATTRIBUTES * Attributes ) /*++ Routine Description: Sets Volume attributes. No polarity translations are done. Arguments: This - Calling context Attributes - On input: contains new attributes On output: contains current attributes of FV Returns: EFI_INVALID_PARAMETER EFI_SUCCESS --*/ ; typedef EFI_STATUS (EFIAPI *EFI_FVB_GET_PHYSICAL_ADDRESS) ( IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL * This, OUT EFI_PHYSICAL_ADDRESS * Address ) /*++ Routine Description: Retrieves the physical address of a memory mapped FV. Arguments: This - Calling context Attributes - Address is a pointer to a caller allocated EFI_PHYSICAL_ADDRESS that on successful return from GetPhysicalAddress() contains the base address of the firmware volume. Returns: EFI_UNSUPPORTED EFI_SUCCESS --*/ ; typedef EFI_STATUS (EFIAPI *EFI_FVB_GET_BLOCK_SIZE) ( IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL * This, IN EFI_LBA Lba, OUT UINTN *BlockSize, OUT UINTN *NumberOfBlocks ) /*++ Routine Description: Retrieves the size in bytes of a specific block within an FV. Arguments: This - Calling context. Lba - Indicates which block to return the size for. BlockSize - BlockSize is a pointer to a caller allocated UINTN in which the size of the block is returned. NumberOfBlocks - NumberOfBlocks is 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. Returns: EFI_INVALID_PARAMETER EFI_SUCCESS --*/ ; typedef EFI_STATUS (EFIAPI *EFI_FVB_READ) ( IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL * This, IN EFI_LBA Lba, IN UINTN Offset, IN OUT UINTN *NumBytes, OUT UINT8 *Buffer ) /*++ Routine Description: Reads data beginning at Lba:Offset from FV and places the data in Buffer. 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 read. Arguments: This - Calling context Lba - Block in which to begin read Offset - Offset in the block at which to begin read NumBytes - At input, indicates the requested read size. At output, indicates the actual number of bytes read. Buffer - Data buffer in which to place data read. Returns: EFI_INVALID_PARAMETER EFI_NOT_FOUND EFI_DEVICE_ERROR EFI_SUCCESS --*/ ; typedef EFI_STATUS (EFIAPI *EFI_FVB_WRITE) ( IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL * This, IN EFI_LBA Lba, IN UINTN Offset, IN OUT UINTN *NumBytes, IN UINT8 *Buffer ) /*++ Routine Description: 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. Arguments: This - Calling context Lba - Block in which to begin write Offset - Offset in the block at which to begin write NumBytes - At input, indicates the requested write size. At output, indicates the actual number of bytes written. Buffer - Buffer containing source data for the write. Returns: EFI_INVALID_PARAMETER EFI_NOT_FOUND EFI_DEVICE_ERROR EFI_SUCCESS --*/ ; #define EFI_LBA_LIST_TERMINATOR 0xFFFFFFFFFFFFFFFF typedef EFI_STATUS (EFIAPI *EFI_FVB_ERASE_BLOCKS) ( IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL * This, ... ) /*++ Routine Description: 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. Arguments: This - Calling context ... - Starting LBA followed by Number of Lba to erase. a -1 to terminate the list. Returns: EFI_INVALID_PARAMETER EFI_DEVICE_ERROR EFI_SUCCESS EFI_ACCESS_DENIED --*/ ; struct _EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL { EFI_FVB_GET_ATTRIBUTES GetVolumeAttributes; EFI_FVB_SET_ATTRIBUTES SetVolumeAttributes; EFI_FVB_GET_PHYSICAL_ADDRESS GetPhysicalAddress; EFI_FVB_GET_BLOCK_SIZE GetBlockSize; EFI_FVB_READ Read; EFI_FVB_WRITE Write; EFI_FVB_ERASE_BLOCKS EraseBlocks; EFI_HANDLE ParentHandle; }; extern EFI_GUID gEfiFirmwareVolumeBlockProtocolGuid; #endif