mirror of https://github.com/acidanthera/audk.git
325 lines
10 KiB
C
325 lines
10 KiB
C
/*++
|
|
|
|
Copyright (c) 2006, 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:
|
|
|
|
FwVolBlock.h
|
|
|
|
Abstract:
|
|
|
|
Firmware Volume Block protocol.. Consumes FV hobs and creates
|
|
appropriate block protocols.
|
|
|
|
Also consumes NT_NON_MM_FV envinronment variable and produces appropriate
|
|
block protocols fro them also... (this is TBD)
|
|
|
|
--*/
|
|
|
|
#ifndef _FWVOL_BLOCK_H_
|
|
#define _FWVOL_BLOCK_H_
|
|
|
|
|
|
#define FVB_DEVICE_SIGNATURE EFI_SIGNATURE_32('_','F','V','B')
|
|
|
|
typedef struct {
|
|
UINTN Base;
|
|
UINTN Length;
|
|
} LBA_CACHE;
|
|
|
|
typedef struct {
|
|
MEMMAP_DEVICE_PATH MemMapDevPath;
|
|
EFI_DEVICE_PATH_PROTOCOL EndDevPath;
|
|
} FV_DEVICE_PATH;
|
|
|
|
|
|
typedef struct {
|
|
UINTN Signature;
|
|
EFI_HANDLE Handle;
|
|
FV_DEVICE_PATH DevicePath;
|
|
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL FwVolBlockInstance;
|
|
UINTN NumBlocks;
|
|
LBA_CACHE *LbaCache;
|
|
UINT32 FvbAttributes;
|
|
EFI_PHYSICAL_ADDRESS BaseAddress;
|
|
} EFI_FW_VOL_BLOCK_DEVICE;
|
|
|
|
#define FVB_DEVICE_FROM_THIS(a) \
|
|
CR(a, EFI_FW_VOL_BLOCK_DEVICE, FwVolBlockInstance, FVB_DEVICE_SIGNATURE)
|
|
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
FwVolBlockDriverInit (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
This routine is the driver initialization entry point. It initializes the
|
|
libraries, consumes FV hobs and NT_NON_MM_FV environment variable and
|
|
produces instances of FW_VOL_BLOCK_PROTOCOL as appropriate.
|
|
Arguments:
|
|
ImageHandle - The image handle.
|
|
SystemTable - The system table.
|
|
Returns:
|
|
EFI_SUCCESS - Successfully initialized firmware volume block driver.
|
|
--*/
|
|
;
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
FwVolBlockGetAttributes (
|
|
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_SUCCESS - The firmware volume attributes were returned.
|
|
|
|
--*/
|
|
;
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
FwVolBlockSetAttributes (
|
|
IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
|
|
OUT EFI_FVB_ATTRIBUTES *Attributes
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Modifies the current settings of the firmware volume according to the input parameter.
|
|
|
|
Arguments:
|
|
This - Calling context
|
|
Attributes - input buffer which contains attributes
|
|
|
|
Returns:
|
|
EFI_SUCCESS - The firmware volume attributes were returned.
|
|
EFI_INVALID_PARAMETER - The attributes requested are in conflict with the capabilities as
|
|
declared in the firmware volume header.
|
|
EFI_UNSUPPORTED - Not supported.
|
|
--*/
|
|
;
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
FwVolBlockEraseBlock (
|
|
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_SUCCESS - The erase request was successfully completed.
|
|
EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state.
|
|
EFI_DEVICE_ERROR - The block device is not functioning correctly and could not be
|
|
written. The firmware device may have been partially erased.
|
|
EFI_INVALID_PARAMETER - One or more of the LBAs listed in the variable argument list do
|
|
EFI_UNSUPPORTED - Not supported.
|
|
|
|
--*/
|
|
;
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
FwVolBlockReadBlock (
|
|
IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
|
|
IN EFI_LBA Lba,
|
|
IN UINTN Offset,
|
|
IN OUT UINTN *NumBytes,
|
|
IN UINT8 *Buffer
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Read the specified number of bytes from the block to the input buffer.
|
|
|
|
Arguments:
|
|
This - Indicates the calling context.
|
|
Lba - The starting logical block index to read.
|
|
Offset - Offset into the block at which to begin reading.
|
|
NumBytes - Pointer to a UINT32. At entry, *NumBytes contains the
|
|
total size of the buffer. At exit, *NumBytes contains the
|
|
total number of bytes actually read.
|
|
Buffer - Pinter to a caller-allocated buffer that contains the destine
|
|
for the read.
|
|
|
|
Returns:
|
|
EFI_SUCCESS - The firmware volume was read successfully.
|
|
EFI_BAD_BUFFER_SIZE - The read was attempted across an LBA boundary.
|
|
EFI_ACCESS_DENIED - Access denied.
|
|
EFI_DEVICE_ERROR - The block device is malfunctioning and could not be read.
|
|
--*/
|
|
;
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
FwVolBlockWriteBlock (
|
|
IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
|
|
IN EFI_LBA Lba,
|
|
IN UINTN Offset,
|
|
IN OUT UINTN *NumBytes,
|
|
IN UINT8 *Buffer
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Writes the specified number of bytes from the input buffer to the block.
|
|
|
|
Arguments:
|
|
This - Indicates the calling context.
|
|
Lba - The starting logical block index to write to.
|
|
Offset - Offset into the block at which to begin writing.
|
|
NumBytes - Pointer to a UINT32. At entry, *NumBytes contains the
|
|
total size of the buffer. At exit, *NumBytes contains the
|
|
total number of bytes actually written.
|
|
Buffer - Pinter to a caller-allocated buffer that contains the source
|
|
for the write.
|
|
|
|
Returns:
|
|
EFI_SUCCESS - The firmware volume was written successfully.
|
|
EFI_BAD_BUFFER_SIZE - The write was attempted across an LBA boundary. On output,
|
|
NumBytes contains the total number of bytes actually written.
|
|
EFI_ACCESS_DENIED - The firmware volume is in the WriteDisabled state.
|
|
EFI_DEVICE_ERROR - The block device is malfunctioning and could not be written.
|
|
EFI_UNSUPPORTED - Not supported.
|
|
--*/
|
|
;
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
FwVolBlockGetPhysicalAddress (
|
|
IN EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *This,
|
|
OUT EFI_PHYSICAL_ADDRESS *Address
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
Get Fvb's base address.
|
|
|
|
Arguments:
|
|
This - Indicates the calling context.
|
|
Address - Fvb device base address.
|
|
|
|
Returns:
|
|
EFI_SUCCESS - Successfully got Fvb's base address.
|
|
EFI_UNSUPPORTED - Not supported.
|
|
--*/
|
|
;
|
|
|
|
|
|
EFI_STATUS
|
|
EFIAPI
|
|
FwVolBlockGetBlockSize (
|
|
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 a firmware volume.
|
|
|
|
Arguments:
|
|
This - Indicates the calling context.
|
|
Lba - Indicates the block for which to return the size.
|
|
BlockSize - Pointer to a caller-allocated UINTN in which the size of the
|
|
block is returned.
|
|
NumberOfBlocks - 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_SUCCESS - The firmware volume base address is returned.
|
|
EFI_INVALID_PARAMETER - The requested LBA is out of range.
|
|
--*/
|
|
;
|
|
EFI_STATUS
|
|
FwVolBlockDriverInit (
|
|
IN EFI_HANDLE ImageHandle,
|
|
IN EFI_SYSTEM_TABLE *SystemTable
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
This routine is the driver initialization entry point. It initializes the
|
|
libraries, consumes FV hobs and NT_NON_MM_FV environment variable and
|
|
produces instances of FW_VOL_BLOCK_PROTOCOL as appropriate.
|
|
Arguments:
|
|
ImageHandle - The image handle.
|
|
SystemTable - The system table.
|
|
Returns:
|
|
Status code
|
|
|
|
--*/
|
|
;
|
|
|
|
EFI_STATUS
|
|
ProduceFVBProtocolOnBuffer (
|
|
IN EFI_PHYSICAL_ADDRESS BaseAddress,
|
|
IN UINT64 Length,
|
|
IN EFI_HANDLE ParentHandle,
|
|
OUT EFI_HANDLE *FvProtocolHandle OPTIONAL
|
|
)
|
|
/*++
|
|
|
|
Routine Description:
|
|
This routine produces a firmware volume block protocol on a given
|
|
buffer.
|
|
|
|
Arguments:
|
|
BaseAddress - base address of the firmware volume image
|
|
Length - length of the firmware volume image
|
|
ParentHandle - handle of parent firmware volume, if this
|
|
image came from an FV image file in another
|
|
firmware volume (ala capsules)
|
|
FvProtocolHandle - Firmware volume block protocol produced.
|
|
|
|
Returns:
|
|
EFI_VOLUME_CORRUPTED - Volume corrupted.
|
|
EFI_OUT_OF_RESOURCES - No enough buffer to be allocated.
|
|
EFI_SUCCESS - Successfully produced a FVB protocol on given buffer.
|
|
|
|
--*/
|
|
;
|
|
|
|
#endif
|