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Clean up FaultTolerantWriteDxe for Doxygen comments requirement.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5463 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
qwang12
2008-07-14 08:19:45 +00:00
parent b414ea4b21
commit 6aab82140b
7 changed files with 787 additions and 971 deletions
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259
MdeModulePkg/Universal/FirmwareVolume/FaultTolerantWriteDxe/FtwMisc.c
View File

@@ -15,29 +15,24 @@ WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
#include <FtwLite.h>
/**
Check whether a flash buffer is erased.
@param Polarity All 1 or all 0
@param Buffer Buffer to check
@param BufferSize Size of the buffer
@return A BOOLEAN value indicating erased or not.
**/
BOOLEAN
IsErasedFlashBuffer (
IN BOOLEAN Polarity,
IN UINT8 *Buffer,
IN UINTN BufferSize
)
/*++
Routine Description:
Check whether a flash buffer is erased.
Arguments:
Polarity - All 1 or all 0
Buffer - Buffer to check
BufferSize - Size of the buffer
Returns:
Erased or not.
--*/
{
UINT8 ErasedValue;
UINT8 *Ptr;
@@ -49,7 +44,7 @@ Returns:
}
Ptr = Buffer;
while (BufferSize--) {
while ((BufferSize--) != 0) {
if (*Ptr++ != ErasedValue) {
return FALSE;
}
@@ -58,27 +53,24 @@ Returns:
return TRUE;
}
/**
To Erase one block. The size is FTW_BLOCK_SIZE
@param FtwLiteDevice Calling context
@param FvBlock FVB Protocol interface
@param Lba Lba of the firmware block
@retval EFI_SUCCESS Block LBA is Erased successfully
@retval Others Error occurs
**/
EFI_STATUS
FtwEraseBlock (
IN EFI_FTW_LITE_DEVICE *FtwLiteDevice,
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,
EFI_LBA Lba
)
/*++
Routine Description:
To Erase one block. The size is FTW_BLOCK_SIZE
Arguments:
FtwLiteDevice - Calling context
FvBlock - FVB Protocol interface
Lba - Lba of the firmware block
Returns:
EFI_SUCCESS - Block LBA is Erased successfully
Others - Error occurs
--*/
{
return FvBlock->EraseBlocks (
FvBlock,
@@ -88,25 +80,32 @@ Returns:
);
}
/**
Erase spare block.
@param FtwLiteDevice Calling context
@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.
The firmware device may have been
partially erased.
@retval EFI_INVALID_PARAMETER One or more of the LBAs listed
in the variable argument list do
not exist in the firmware volume.
**/
EFI_STATUS
FtwEraseSpareBlock (
IN EFI_FTW_LITE_DEVICE *FtwLiteDevice
)
/*++
Routine Description:
Erase spare block.
Arguments:
FtwLiteDevice - Calling context
Returns:
Status code
--*/
{
return FtwLiteDevice->FtwBackupFvb->EraseBlocks (
FtwLiteDevice->FtwBackupFvb,
@@ -116,25 +115,23 @@ Returns:
);
}
/**
Retrive the proper FVB protocol interface by HANDLE.
@param FvBlockHandle The handle of FVB protocol that provides services for
reading, writing, and erasing the target block.
@param FvBlock The interface of FVB protocol
@retval EFI_SUCCESS The function completed successfully
@retval EFI_ABORTED The function could not complete successfully
**/
EFI_STATUS
FtwGetFvbByHandle (
IN EFI_HANDLE FvBlockHandle,
OUT EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL **FvBlock
)
/*++
Routine Description:
Retrive the proper FVB protocol interface by HANDLE.
Arguments:
FvBlockHandle - The handle of FVB protocol that provides services for
reading, writing, and erasing the target block.
FvBlock - The interface of FVB protocol
Returns:
EFI_SUCCESS - The function completed successfully
EFI_ABORTED - The function could not complete successfully
--*/
{
//
// To get the FVB protocol interface on the handle
@@ -146,29 +143,23 @@ Returns:
);
}
/**
Get firmware block by address.
@param Address Address specified the block
@param FvBlock The block caller wanted
@retval EFI_SUCCESS The protocol instance if found.
@retval EFI_NOT_FOUND Block not found
**/
EFI_STATUS
GetFvbByAddress (
IN EFI_PHYSICAL_ADDRESS Address,
OUT EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL **FvBlock
)
/*++
Routine Description:
Get firmware block by address.
Arguments:
Address - Address specified the block
FvBlock - The block caller wanted
Returns:
Status code
EFI_NOT_FOUND - Block not found
--*/
{
EFI_STATUS Status;
EFI_HANDLE *HandleBuffer;
@@ -225,29 +216,24 @@ Returns:
return Status;
}
/**
Is it in working block?
@param FtwLiteDevice Calling context
@param FvBlock Fvb protocol instance
@param Lba The block specified
@return A BOOLEAN value indicating in working block or not.
**/
BOOLEAN
IsInWorkingBlock (
EFI_FTW_LITE_DEVICE *FtwLiteDevice,
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,
EFI_LBA Lba
)
/*++
Routine Description:
Is it in working block?
Arguments:
FtwLiteDevice - Calling context
FvBlock - Fvb protocol instance
Lba - The block specified
Returns:
In working block or not
--*/
{
//
// If matching the following condition, the target block is in working block.
@@ -262,32 +248,29 @@ Returns:
);
}
/**
Copy the content of spare block to a target block. Size is FTW_BLOCK_SIZE.
Spare block is accessed by FTW backup FVB protocol interface. LBA is
FtwLiteDevice->FtwSpareLba.
Target block is accessed by FvBlock protocol interface. LBA is Lba.
@param FtwLiteDevice The private data of FTW_LITE driver
@param FvBlock FVB Protocol interface to access target block
@param Lba Lba of the target block
@retval EFI_SUCCESS Spare block content is copied to target block
@retval EFI_INVALID_PARAMETER Input parameter error
@retval EFI_OUT_OF_RESOURCES Allocate memory error
@retval EFI_ABORTED The function could not complete successfully
**/
EFI_STATUS
FlushSpareBlockToTargetBlock (
EFI_FTW_LITE_DEVICE *FtwLiteDevice,
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,
EFI_LBA Lba
)
/*++
Routine Description:
Copy the content of spare block to a target block. Size is FTW_BLOCK_SIZE.
Spare block is accessed by FTW backup FVB protocol interface. LBA is
FtwLiteDevice->FtwSpareLba.
Target block is accessed by FvBlock protocol interface. LBA is Lba.
Arguments:
FtwLiteDevice - The private data of FTW_LITE driver
FvBlock - FVB Protocol interface to access target block
Lba - Lba of the target block
Returns:
EFI_SUCCESS - Spare block content is copied to target block
EFI_INVALID_PARAMETER - Input parameter error
EFI_OUT_OF_RESOURCES - Allocate memory error
EFI_ABORTED - The function could not complete successfully
--*/
{
EFI_STATUS Status;
UINTN Length;
@@ -356,33 +339,29 @@ Returns:
return Status;
}
/**
Copy the content of spare block to working block. Size is FTW_BLOCK_SIZE.
Spare block is accessed by FTW backup FVB protocol interface. LBA is
FtwLiteDevice->FtwSpareLba.
Working block is accessed by FTW working FVB protocol interface. LBA is
FtwLiteDevice->FtwWorkBlockLba.
@param FtwLiteDevice The private data of FTW_LITE driver
@retval EFI_SUCCESS Spare block content is copied to target block
@retval EFI_OUT_OF_RESOURCES Allocate memory error
@retval EFI_ABORTED The function could not complete successfully
Notes:
Since the working block header is important when FTW initializes, the
state of the operation should be handled carefully. The Crc value is
calculated without STATE element.
**/
EFI_STATUS
FlushSpareBlockToWorkingBlock (
EFI_FTW_LITE_DEVICE *FtwLiteDevice
)
/*++
Routine Description:
Copy the content of spare block to working block. Size is FTW_BLOCK_SIZE.
Spare block is accessed by FTW backup FVB protocol interface. LBA is
FtwLiteDevice->FtwSpareLba.
Working block is accessed by FTW working FVB protocol interface. LBA is
FtwLiteDevice->FtwWorkBlockLba.
Arguments:
FtwLiteDevice - The private data of FTW_LITE driver
Returns:
EFI_SUCCESS - Spare block content is copied to target block
EFI_OUT_OF_RESOURCES - Allocate memory error
EFI_ABORTED - The function could not complete successfully
Notes:
Since the working block header is important when FTW initializes, the
state of the operation should be handled carefully. The Crc value is
calculated without STATE element.
--*/
{
EFI_STATUS Status;
UINTN Length;