Update Comments

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7110 6f19259b-4bc3-4df7-8a09-765794883524

2 files changed, 3 insertions, 55 deletions

diff --git a/MdeModulePkg/Universal/FirmwareVolume/FaultTolerantWriteDxe/FtwLite.c b/MdeModulePkg/Universal/FirmwareVolume/FaultTolerantWriteDxe/FtwLite.c
index c7897cd..76e3cb3 100644
--- a/MdeModulePkg/Universal/FirmwareVolume/FaultTolerantWriteDxe/FtwLite.c
+++ b/MdeModulePkg/Universal/FirmwareVolume/FaultTolerantWriteDxe/FtwLite.c
@@ -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);

   }

diff --git a/MdeModulePkg/Universal/FirmwareVolume/FaultTolerantWriteDxe/FtwLite.h b/MdeModulePkg/Universal/FirmwareVolume/FaultTolerantWriteDxe/FtwLite.h
index 0c6bf34..778c155 100644
--- a/MdeModulePkg/Universal/FirmwareVolume/FaultTolerantWriteDxe/FtwLite.h
+++ b/MdeModulePkg/Universal/FirmwareVolume/FaultTolerantWriteDxe/FtwLite.h
@@ -69,16 +69,6 @@ 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

 //

 #ifdef EFI_FTW_WORKING_OFFSET

@@ -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

@@ -349,26 +339,6 @@ IsInWorkingBlock (
   );

 

 /**

-

-  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

   FtwLiteDevice->FtwSpareLba.

@@ -417,27 +387,6 @@ FlushSpareBlockToWorkingBlock (
   );

 

 /**

-  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

   the name of a certain bit.