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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
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bbahnsen
2006-04-21 22:54:32 +00:00
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324
EdkModulePkg/Library/EdkFvbServiceLib/Ipf/Fvb.c Normal file
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/*++
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:
Fvb.c
Abstract:
Light weight lib to support Tiano Firmware Volume Block
protocol abstraction at runtime.
All these functions convert EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID
class function to the Runtime Lib function. There is a 1 to 1 mapping.
If you are using any of these lib functions.you must first call FvbInitialize ().
--*/
EFI_STATUS
FvbLibInitialize (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
Initialize globals and register Fvb Protocol notification function.
Arguments:
None
Returns:
EFI_SUCCESS
--*/
{
return EFI_SUCCESS;
}
//
// The following functions wrap Fvb protocol in the Runtime Lib functions.
// The Instance translates into Fvb instance. The Fvb order defined by HOBs and
// thus the sequence of FVB protocol addition define Instance.
//
// EfiFvbInitialize () must be called before any of the following functions
// must be called.
//
EFI_STATUS
EfiFvbReadBlock (
IN UINTN Instance,
IN EFI_LBA Lba,
IN UINTN Offset,
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer
)
/*++
Routine Description:
Reads specified number of bytes into a buffer from the specified block
Arguments:
Instance - The FV instance to be read from
Lba - The logical block address to be read from
Offset - Offset into the block at which to begin reading
NumBytes - Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes read
Buffer - Pointer to a caller allocated buffer that will be
used to hold the data read
Returns:
Status code
--*/
{
EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID;
return EfiCallEsalService (&Guid, Read, Instance, Lba, Offset, (UINT64) NumBytes, (UINT64) Buffer, 0, 0).Status;
}
EFI_STATUS
EfiFvbWriteBlock (
IN UINTN Instance,
IN EFI_LBA Lba,
IN UINTN Offset,
IN OUT UINTN *NumBytes,
IN UINT8 *Buffer
)
/*++
Routine Description:
Writes specified number of bytes from the input buffer to the block
Arguments:
Instance - The FV instance to be written to
Lba - The starting logical block index to write to
Offset - Offset into the block at which to begin writing
NumBytes - Pointer that on input contains the total size of
the buffer. On output, it contains the total number
of bytes actually written
Buffer - Pointer to a caller allocated buffer that contains
the source for the write
Returns:
Status code
--*/
{
EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID;
return EfiCallEsalService (&Guid, Write, Instance, Lba, Offset, (UINT64) NumBytes, (UINT64) Buffer, 0, 0).Status;
}
EFI_STATUS
EfiFvbEraseBlock (
IN UINTN Instance,
IN UINTN Lba
)
/*++
Routine Description:
Erases and initializes a firmware volume block
Arguments:
Instance - The FV instance to be erased
Lba - The logical block index to be erased
Returns:
Status code
--*/
{
EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID;
return EfiCallEsalService (&Guid, EraseBlock, Instance, Lba, 0, 0, 0, 0, 0).Status;
}
EFI_STATUS
EfiFvbGetVolumeAttributes (
IN UINTN Instance,
OUT EFI_FVB_ATTRIBUTES *Attributes
)
/*++
Routine Description:
Retrieves attributes, insures positive polarity of attribute bits, returns
resulting attributes in output parameter
Arguments:
Instance - The FV instance whose attributes is going to be
returned
Attributes - Output buffer which contains attributes
Returns:
Status code
--*/
{
EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID;
return EfiCallEsalService (&Guid, SetVolumeAttributes, Instance, (UINT64) Attributes, 0, 0, 0, 0, 0).Status;
}
EFI_STATUS
EfiFvbSetVolumeAttributes (
IN UINTN Instance,
IN EFI_FVB_ATTRIBUTES Attributes
)
/*++
Routine Description:
Modifies the current settings of the firmware volume according to the
input parameter, and returns the new setting of the volume
Arguments:
Instance - The FV instance whose attributes is going to be
modified
Attributes - On input, it is a pointer to EFI_FVB_ATTRIBUTES
containing the desired firmware volume settings.
On successful return, it contains the new settings
of the firmware volume
Returns:
Status code
--*/
{
EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID;
return EfiCallEsalService (&Guid, SetVolumeAttributes, Instance, (UINT64) Attributes, 0, 0, 0, 0, 0).Status;
}
EFI_STATUS
EfiFvbGetPhysicalAddress (
IN UINTN Instance,
OUT EFI_PHYSICAL_ADDRESS *BaseAddress
)
/*++
Routine Description:
Retrieves the physical address of a memory mapped FV
Arguments:
Instance - The FV instance whose base address is going to be
returned
BaseAddress - Pointer to a caller allocated EFI_PHYSICAL_ADDRESS
that on successful return, contains the base address
of the firmware volume.
Returns:
Status code
--*/
{
EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID;
return EfiCallEsalService (&Guid, GetPhysicalAddress, Instance, (UINT64) BaseAddress, 0, 0, 0, 0, 0).Status;
}
EFI_STATUS
EfiFvbGetBlockSize (
IN UINTN Instance,
IN EFI_LBA Lba,
OUT UINTN *BlockSize,
OUT UINTN *NumOfBlocks
)
/*++
Routine Description:
Retrieve the size of a logical block
Arguments:
Instance - The FV instance whose block size is going to be
returned
Lba - Indicates which block to return the size for.
BlockSize - A pointer to a caller allocated UINTN in which
the size of the block is returned
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
Returns:
EFI_SUCCESS - The firmware volume was read successfully and
contents are in Buffer
--*/
{
EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID;
return EfiCallEsalService (
&Guid,
GetBlockSize,
Instance,
Lba,
(UINT64) BlockSize,
(UINT64) NumOfBlocks,
0,
0,
0
).Status;
}
EFI_STATUS
EfiFvbEraseCustomBlockRange (
IN UINTN Instance,
IN EFI_LBA StartLba,
IN UINTN OffsetStartLba,
IN EFI_LBA LastLba,
IN UINTN OffsetLastLba
)
/*++
Routine Description:
Erases and initializes a specified range of a firmware volume
Arguments:
Instance - The FV instance to be erased
StartLba - The starting logical block index to be erased
OffsetStartLba - Offset into the starting block at which to
begin erasing
LastLba - The last logical block index to be erased
OffsetLastLba - Offset into the last block at which to end erasing
Returns:
Status code
--*/
{
EFI_GUID Guid = EFI_EXTENDED_SAL_FV_BLOCK_SERVICES_PROTOCOL_GUID;
return EfiCallEsalService (
&Guid,
EraseCustomBlockRange,
Instance,
StartLba,
OffsetStartLba,
LastLba,
OffsetLastLba,
0,
0
).Status;
}
/**
BugBug: Can't turn this off in the current MSA so we need a stub
**/
VOID
EFIAPI
FvbVirtualAddressChangeNotifyEvent (
IN EFI_EVENT Event,
IN VOID *Context
)
{
}