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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7110 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
lgao4 2008-12-24 01:42:23 +00:00
parent a45eb10f26
commit 8986b8cda6
2 changed files with 3 additions and 55 deletions
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5
MdeModulePkg/Universal/FirmwareVolume/FaultTolerantWriteDxe/FtwLite.c
View File

@ -17,7 +17,7 @@
The write record has three states to specify the different phase of write operation.
1) WRITE_ALLOCATED is that the record is allocated in write space.
The write record structure records the information of write operation.
The information of write operation is stored in write record structure.
2) SPARE_COMPLETED is that the data from write buffer is writed into the spare block as the backup.
3) WRITE_COMPLETED is that the data is copied from the spare block to the target block.
@ -423,7 +423,6 @@ FtwWriteRecord (
//
// IF target block is working block, THEN Flush Spare Block To Working Block;
// ELSE IF target block is boot block, THEN Flush Spare Block To boot Block;
// ELSE flush spare block to normal target block.ENDIF
//
if (IsInWorkingBlock (FtwLiteDevice, Fvb, Record->Lba)) {
@ -444,7 +443,7 @@ FtwWriteRecord (
Status = FlushSpareBlockToWorkingBlock (FtwLiteDevice);
} else {
//
// Update blocks other than working block or boot block
// Update blocks other than working block
//
Status = FlushSpareBlockToTargetBlock (FtwLiteDevice, Fvb, Record->Lba);
}

53
MdeModulePkg/Universal/FirmwareVolume/FaultTolerantWriteDxe/FtwLite.h
View File

@ -68,16 +68,6 @@ typedef struct {
#define FTW_LITE_DEVICE_SIGNATURE SIGNATURE_32 ('F', 'T', 'W', 'L')
//
// MACRO for Block size.
// Flash Erasing will do in block granularity.
//
#ifdef FV_BLOCK_SIZE
#define FTW_BLOCK_SIZE FV_BLOCK_SIZE
#else
#define FV_BLOCK_SIZE 0x10000
#define FTW_BLOCK_SIZE FV_BLOCK_SIZE
#endif
//
// MACRO for FTW WORK SPACE Base & Size
//
@ -249,7 +239,7 @@ FtwWriteRecord (
);
/**
To Erase one block. The size is FTW_BLOCK_SIZE
To erase the block with the spare block size.
@param FtwLiteDevice Calling context
@ -348,26 +338,6 @@ IsInWorkingBlock (
EFI_LBA Lba
);
/**
Check whether the block is a boot block.
@param FtwLiteDevice Calling context
@param FvBlock Fvb protocol instance
@param Lba Lba value
@retval FALSE This is a boot block.
@retval TRUE This is not a boot block.
**/
BOOLEAN
IsBootBlock (
EFI_FTW_LITE_DEVICE *FtwLiteDevice,
EFI_FIRMWARE_VOLUME_BLOCK_PROTOCOL *FvBlock,
EFI_LBA Lba
);
/**
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
@ -416,27 +386,6 @@ FlushSpareBlockToWorkingBlock (
EFI_FTW_LITE_DEVICE *FtwLiteDevice
);
/**
Copy the content of spare block to a boot block. Size is FTW_BLOCK_SIZE.
Spare block is accessed by FTW backup FVB protocol interface. LBA is
FtwLiteDevice->FtwSpareLba.
Boot block is accessed by BootFvb protocol interface. LBA is 0.
@param FtwLiteDevice The private data of FTW_LITE driver
@retval EFI_SUCCESS Spare block content is copied to boot 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
Notes:
**/
EFI_STATUS
FlushSpareBlockToBootBlock (
EFI_FTW_LITE_DEVICE *FtwLiteDevice
);
/**
Update a bit of state on a block device. The location of the bit is
calculated by the (Lba, Offset, bit). Here bit is determined by the