1. Add the fix for the following Bugs:

i)	BMM_FAKE_NV_DATA definition inconsistent in bm.vfr and BootMain.h
        (EdkNt32Pkg\Dxe\PlatformBdsDxe\Generic\BootMaint\BootMain.h)
ii)	Change some files’ EOL(end of line) format to DOS. Some file use even mixed style EOL.
   (EdkModulePkg\Universal\DevicePath\Dxe\DevicePath.c, DevicepathFromText.c, DevicePathUtilities.c;
EdkModulePkg\Universal\Disk\DiskIo\Dxe\diskIo.c; MdePkg\Library\UefiLib\UefiNotTiano.c)
iii)    Change some illegal characters in many files, the problem is mainly connected with people using Chinese Input method to input symbols such as ' " - ?, etc. Multiple files are influenced.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@1890 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 781 insertions, 781 deletions

diff --git a/EdkModulePkg/Universal/Disk/DiskIo/Dxe/diskio.c b/EdkModulePkg/Universal/Disk/DiskIo/Dxe/diskio.c
index 35d2a19be2..1cb26fe976 100644
--- a/EdkModulePkg/Universal/Disk/DiskIo/Dxe/diskio.c
+++ b/EdkModulePkg/Universal/Disk/DiskIo/Dxe/diskio.c
@@ -1,781 +1,781 @@
-/*++
-
-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:
-
-  DiskIo.c
-
-Abstract:
-
-  DiskIo driver that layers it's self on every Block IO protocol in the system.
-  DiskIo converts a block oriented device to a byte oriented device.
-
-  ReadDisk may have to do reads that are not aligned on sector boundaries.
-  There are three cases:
-
-    UnderRun - The first byte is not on a sector boundary or the read request is
-               less than a sector in length.
-
-    Aligned  - A read of N contiguous sectors.
-
-    OverRun  - The last byte is not on a sector boundary.
-
---*/
-
-#include "DiskIo.h"
-
-//
-// Prototypes
-// Driver model protocol interface
-//
-EFI_STATUS
-EFIAPI
-DiskIoDriverBindingSupported (
-  IN EFI_DRIVER_BINDING_PROTOCOL    *This,
-  IN EFI_HANDLE                     ControllerHandle,
-  IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath
-  );
-
-EFI_STATUS
-EFIAPI
-DiskIoDriverBindingStart (
-  IN EFI_DRIVER_BINDING_PROTOCOL    *This,
-  IN EFI_HANDLE                     ControllerHandle,
-  IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath
-  );
-
-EFI_STATUS
-EFIAPI
-DiskIoDriverBindingStop (
-  IN  EFI_DRIVER_BINDING_PROTOCOL    *This,
-  IN  EFI_HANDLE                     ControllerHandle,
-  IN  UINTN                          NumberOfChildren,
-  IN  EFI_HANDLE                     *ChildHandleBuffer
-  );
-
-//
-// Disk I/O Protocol Interface
-//
-EFI_STATUS
-EFIAPI
-DiskIoReadDisk (
-  IN EFI_DISK_IO_PROTOCOL  *This,
-  IN UINT32                MediaId,
-  IN UINT64                Offset,
-  IN UINTN                 BufferSize,
-  OUT VOID                 *Buffer
-  );
-
-EFI_STATUS
-EFIAPI
-DiskIoWriteDisk (
-  IN EFI_DISK_IO_PROTOCOL  *This,
-  IN UINT32                MediaId,
-  IN UINT64                Offset,
-  IN UINTN                 BufferSize,
-  IN VOID                  *Buffer
-  );
-
-EFI_DRIVER_BINDING_PROTOCOL gDiskIoDriverBinding = {
-  DiskIoDriverBindingSupported,
-  DiskIoDriverBindingStart,
-  DiskIoDriverBindingStop,
-  0x10,
-  NULL,
-  NULL
-};
-
-DISK_IO_PRIVATE_DATA        gDiskIoPrivateDataTemplate = {
-  DISK_IO_PRIVATE_DATA_SIGNATURE,
-  {
-    EFI_DISK_IO_PROTOCOL_REVISION,
-    DiskIoReadDisk,
-    DiskIoWriteDisk
-  },
-  NULL
-};
-
-EFI_STATUS
-EFIAPI
-DiskIoDriverBindingSupported (
-  IN EFI_DRIVER_BINDING_PROTOCOL  *This,
-  IN EFI_HANDLE                   ControllerHandle,
-  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath OPTIONAL
-  )
-/*++
-
-  Routine Description:
-    Test to see if this driver supports ControllerHandle. Any ControllerHandle
-    than contains a BlockIo protocol can be supported.
-
-  Arguments:
-    This                - Protocol instance pointer.
-    ControllerHandle    - Handle of device to test.
-    RemainingDevicePath - Not used.
-
-  Returns:
-    EFI_SUCCESS         - This driver supports this device.
-    EFI_ALREADY_STARTED - This driver is already running on this device.
-    other               - This driver does not support this device.
-
---*/
-{
-  EFI_STATUS            Status;
-  EFI_BLOCK_IO_PROTOCOL *BlockIo;
-
-  //
-  // Open the IO Abstraction(s) needed to perform the supported test.
-  //
-  Status = gBS->OpenProtocol (
-                  ControllerHandle,
-                  &gEfiBlockIoProtocolGuid,
-                  (VOID **) &BlockIo,
-                  This->DriverBindingHandle,
-                  ControllerHandle,
-                  EFI_OPEN_PROTOCOL_BY_DRIVER
-                  );
-  if (EFI_ERROR (Status)) {
-    return Status;
-  }
-  //
-  // Close the I/O Abstraction(s) used to perform the supported test.
-  //
-  gBS->CloseProtocol (
-        ControllerHandle,
-        &gEfiBlockIoProtocolGuid,
-        This->DriverBindingHandle,
-        ControllerHandle
-        );
-  return EFI_SUCCESS;
-}
-
-EFI_STATUS
-EFIAPI
-DiskIoDriverBindingStart (
-  IN EFI_DRIVER_BINDING_PROTOCOL  *This,
-  IN EFI_HANDLE                   ControllerHandle,
-  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath OPTIONAL
-  )
-/*++
-
-  Routine Description:
-    Start this driver on ControllerHandle by opening a Block IO protocol and
-    installing a Disk IO protocol on ControllerHandle.
-
-  Arguments:
-    This                - Protocol instance pointer.
-    ControllerHandle    - Handle of device to bind driver to.
-    RemainingDevicePath - Not used, always produce all possible children.
-
-  Returns:
-    EFI_SUCCESS         - This driver is added to ControllerHandle.
-    EFI_ALREADY_STARTED - This driver is already running on ControllerHandle.
-    other               - This driver does not support this device.
-
---*/
-{
-  EFI_STATUS            Status;
-  DISK_IO_PRIVATE_DATA  *Private;
-
-  Private = NULL;
-
-  //
-  // Connect to the Block IO interface on ControllerHandle.
-  //
-  Status = gBS->OpenProtocol (
-                  ControllerHandle,
-                  &gEfiBlockIoProtocolGuid,
-                  (VOID **) &gDiskIoPrivateDataTemplate.BlockIo,
-                  This->DriverBindingHandle,
-                  ControllerHandle,
-                  EFI_OPEN_PROTOCOL_BY_DRIVER
-                  );
-  if (EFI_ERROR (Status)) {
-    return Status;
-  }
-  //
-  // Initialize the Disk IO device instance.
-  //
-  Private = AllocateCopyPool (sizeof (DISK_IO_PRIVATE_DATA), &gDiskIoPrivateDataTemplate);
-  if (Private == NULL) {
-    Status = EFI_OUT_OF_RESOURCES;
-    goto ErrorExit;
-  }
-  //
-  // Install protocol interfaces for the Disk IO device.
-  //
-  Status = gBS->InstallProtocolInterface (
-                  &ControllerHandle,
-                  &gEfiDiskIoProtocolGuid,
-                  EFI_NATIVE_INTERFACE,
-                  &Private->DiskIo
-                  );
-
-ErrorExit:
-  if (EFI_ERROR (Status)) {
-
-    if (Private != NULL) {
-      gBS->FreePool (Private);
-    }
-
-    gBS->CloseProtocol (
-          ControllerHandle,
-          &gEfiBlockIoProtocolGuid,
-          This->DriverBindingHandle,
-          ControllerHandle
-          );
-  }
-
-  return Status;
-}
-
-EFI_STATUS
-EFIAPI
-DiskIoDriverBindingStop (
-  IN  EFI_DRIVER_BINDING_PROTOCOL    *This,
-  IN  EFI_HANDLE                     ControllerHandle,
-  IN  UINTN                          NumberOfChildren,
-  IN  EFI_HANDLE                     *ChildHandleBuffer
-  )
-/*++
-
-  Routine Description:
-    Stop this driver on ControllerHandle by removing Disk IO protocol and closing
-    the Block IO protocol on ControllerHandle.
-
-  Arguments:
-    This              - Protocol instance pointer.
-    ControllerHandle  - Handle of device to stop driver on.
-    NumberOfChildren  - Not used.
-    ChildHandleBuffer - Not used.
-
-  Returns:
-    EFI_SUCCESS         - This driver is removed ControllerHandle.
-    other               - This driver was not removed from this device.
-    EFI_UNSUPPORTED
-
---*/
-{
-  EFI_STATUS            Status;
-  EFI_DISK_IO_PROTOCOL  *DiskIo;
-  DISK_IO_PRIVATE_DATA  *Private;
-
-  //
-  // Get our context back.
-  //
-  Status = gBS->OpenProtocol (
-                  ControllerHandle,
-                  &gEfiDiskIoProtocolGuid,
-                  (VOID **) &DiskIo,
-                  This->DriverBindingHandle,
-                  ControllerHandle,
-                  EFI_OPEN_PROTOCOL_GET_PROTOCOL
-                  );
-  if (EFI_ERROR (Status)) {
-    return EFI_UNSUPPORTED;
-  }
-
-  Private = DISK_IO_PRIVATE_DATA_FROM_THIS (DiskIo);
-
-  Status = gBS->UninstallProtocolInterface (
-                  ControllerHandle,
-                  &gEfiDiskIoProtocolGuid,
-                  &Private->DiskIo
-                  );
-  if (!EFI_ERROR (Status)) {
-
-    Status = gBS->CloseProtocol (
-                    ControllerHandle,
-                    &gEfiBlockIoProtocolGuid,
-                    This->DriverBindingHandle,
-                    ControllerHandle
-                    );
-  }
-
-  if (!EFI_ERROR (Status)) {
-    gBS->FreePool (Private);
-  }
-
-  return Status;
-}
-
-EFI_STATUS
-EFIAPI
-DiskIoReadDisk (
-  IN EFI_DISK_IO_PROTOCOL  *This,
-  IN UINT32                MediaId,
-  IN UINT64                Offset,
-  IN UINTN                 BufferSize,
-  OUT VOID                 *Buffer
-  )
-/*++
-
-  Routine Description:
-    Read BufferSize bytes from Offset into Buffer.
-
-    Reads may support reads that are not aligned on
-    sector boundaries. There are three cases:
-
-      UnderRun - The first byte is not on a sector boundary or the read request is
-                 less than a sector in length.
-
-      Aligned  - A read of N contiguous sectors.
-
-      OverRun  - The last byte is not on a sector boundary.
-
-
-  Arguments:
-    This       - Protocol instance pointer.
-    MediaId    - Id of the media, changes every time the media is replaced.
-    Offset     - The starting byte offset to read from.
-    BufferSize - Size of Buffer.
-    Buffer     - Buffer containing read data.
-
-  Returns:
-    EFI_SUCCESS           - The data was read correctly from the device.
-    EFI_DEVICE_ERROR      - The device reported an error while performing the read.
-    EFI_NO_MEDIA          - There is no media in the device.
-    EFI_MEDIA_CHNAGED     - The MediaId does not matched the current device.
-    EFI_INVALID_PARAMETER - The read request contains device addresses that are not
-                            valid for the device.
-    EFI_OUT_OF_RESOURCES
-
---*/
-{
-  EFI_STATUS            Status;
-  DISK_IO_PRIVATE_DATA  *Private;
-  EFI_BLOCK_IO_PROTOCOL *BlockIo;
-  EFI_BLOCK_IO_MEDIA    *Media;
-  UINT32                BlockSize;
-  UINT64                Lba;
-  UINT64                OverRunLba;
-  UINT32                UnderRun;
-  UINT32                OverRun;
-  BOOLEAN               TransactionComplete;
-  UINTN                 WorkingBufferSize;
-  UINT8                 *WorkingBuffer;
-  UINTN                 Length;
-  UINT8                 *Data;
-  UINT8                 *PreData;
-  UINTN                 IsBufferAligned;
-  UINTN                 DataBufferSize;
-  BOOLEAN               LastRead;
-
-  Private   = DISK_IO_PRIVATE_DATA_FROM_THIS (This);
-
-  BlockIo   = Private->BlockIo;
-  Media     = BlockIo->Media;
-  BlockSize = Media->BlockSize;
-
-  if (Media->MediaId != MediaId) {
-    return EFI_MEDIA_CHANGED;
-  }
-
-  WorkingBuffer     = Buffer;
-  WorkingBufferSize = BufferSize;
-
-  //
-  // Allocate a temporary buffer for operation
-  //
-  DataBufferSize = BlockSize * DATA_BUFFER_BLOCK_NUM;
-
-  if (Media->IoAlign > 1) {
-    PreData = AllocatePool (DataBufferSize + Media->IoAlign);
-    Data    = PreData - ((UINTN) PreData & (Media->IoAlign - 1)) + Media->IoAlign;
-  } else {
-    PreData = AllocatePool (DataBufferSize);
-    Data    = PreData;
-  }
-
-  if (PreData == NULL) {
-    return EFI_OUT_OF_RESOURCES;
-  }
-
-  Lba                 = DivU64x32Remainder (Offset, BlockSize, &UnderRun);
-
-  Length              = BlockSize - UnderRun;
-  TransactionComplete = FALSE;
-
-  Status              = EFI_SUCCESS;
-  if (UnderRun != 0) {
-    //
-    // Offset starts in the middle of an Lba, so read the entire block.
-    //
-    Status = BlockIo->ReadBlocks (
-                        BlockIo,
-                        MediaId,
-                        Lba,
-                        BlockSize,
-                        Data
-                        );
-
-    if (EFI_ERROR (Status)) {
-      goto Done;
-    }
-
-    if (Length > BufferSize) {
-      Length              = BufferSize;
-      TransactionComplete = TRUE;
-    }
-
-    CopyMem (WorkingBuffer, Data + UnderRun, Length);
-
-    WorkingBuffer += Length;
-
-    WorkingBufferSize -= Length;
-    if (WorkingBufferSize == 0) {
-      goto Done;
-    }
-
-    Lba += 1;
-  }
-
-  OverRunLba = Lba + DivU64x32Remainder (WorkingBufferSize, BlockSize, &OverRun);
-
-  if (!TransactionComplete && WorkingBufferSize >= BlockSize) {
-    //
-    // If the DiskIo maps directly to a BlockIo device do the read.
-    //
-    if (OverRun != 0) {
-      WorkingBufferSize -= OverRun;
-    }
-    //
-    // Check buffer alignment
-    //
-    IsBufferAligned = (UINTN) WorkingBuffer & (UINTN) (Media->IoAlign - 1);
-
-    if (Media->IoAlign <= 1 || IsBufferAligned == 0) {
-      //
-      // Alignment is satisfied, so read them together
-      //
-      Status = BlockIo->ReadBlocks (
-                          BlockIo,
-                          MediaId,
-                          Lba,
-                          WorkingBufferSize,
-                          WorkingBuffer
-                          );
-
-      if (EFI_ERROR (Status)) {
-        goto Done;
-      }
-
-      WorkingBuffer += WorkingBufferSize;
-
-    } else {
-      //
-      // Use the allocated buffer instead of the original buffer
-      // to avoid alignment issue.
-      // Here, the allocated buffer (8-byte align) can satisfy the alignment
-      //
-      LastRead = FALSE;
-      do {
-        if (WorkingBufferSize <= DataBufferSize) {
-          //
-          // It is the last calling to readblocks in this loop
-          //
-          DataBufferSize  = WorkingBufferSize;
-          LastRead        = TRUE;
-        }
-
-        Status = BlockIo->ReadBlocks (
-                            BlockIo,
-                            MediaId,
-                            Lba,
-                            DataBufferSize,
-                            Data
-                            );
-        if (EFI_ERROR (Status)) {
-          goto Done;
-        }
-
-        CopyMem (WorkingBuffer, Data, DataBufferSize);
-        WorkingBufferSize -= DataBufferSize;
-        WorkingBuffer += DataBufferSize;
-        Lba += DATA_BUFFER_BLOCK_NUM;
-      } while (!LastRead);
-    }
-  }
-
-  if (!TransactionComplete && OverRun != 0) {
-    //
-    // Last read is not a complete block.
-    //
-    Status = BlockIo->ReadBlocks (
-                        BlockIo,
-                        MediaId,
-                        OverRunLba,
-                        BlockSize,
-                        Data
-                        );
-
-    if (EFI_ERROR (Status)) {
-      goto Done;
-    }
-
-    CopyMem (WorkingBuffer, Data, OverRun);
-  }
-
-Done:
-  if (PreData != NULL) {
-    gBS->FreePool (PreData);
-  }
-
-  return Status;
-}
-
-EFI_STATUS
-EFIAPI
-DiskIoWriteDisk (
-  IN EFI_DISK_IO_PROTOCOL  *This,
-  IN UINT32                MediaId,
-  IN UINT64                Offset,
-  IN UINTN                 BufferSize,
-  IN VOID                  *Buffer
-  )
-/*++
-
-  Routine Description:
-    Read BufferSize bytes from Offset into Buffer.
-
-    Writes may require a read modify write to support writes that are not
-    aligned on sector boundaries. There are three cases:
-
-      UnderRun - The first byte is not on a sector boundary or the write request
-                 is less than a sector in length. Read modify write is required.
-
-      Aligned  - A write of N contiguous sectors.
-
-      OverRun  - The last byte is not on a sector boundary. Read modified write
-                 required.
-
-  Arguments:
-    This       - Protocol instance pointer.
-    MediaId    - Id of the media, changes every time the media is replaced.
-    Offset     - The starting byte offset to read from.
-    BufferSize - Size of Buffer.
-    Buffer     - Buffer containing read data.
-
-  Returns:
-    EFI_SUCCESS           - The data was written correctly to the device.
-    EFI_WRITE_PROTECTED   - The device can not be written to.
-    EFI_DEVICE_ERROR      - The device reported an error while performing the write.
-    EFI_NO_MEDIA          - There is no media in the device.
-    EFI_MEDIA_CHNAGED     - The MediaId does not matched the current device.
-    EFI_INVALID_PARAMETER - The write request contains device addresses that are not
-                            valid for the device.
-    EFI_OUT_OF_RESOURCES
-
---*/
-{
-  EFI_STATUS            Status;
-  DISK_IO_PRIVATE_DATA  *Private;
-  EFI_BLOCK_IO_PROTOCOL *BlockIo;
-  EFI_BLOCK_IO_MEDIA    *Media;
-  UINT32                BlockSize;
-  UINT64                Lba;
-  UINT64                OverRunLba;
-  UINT32                UnderRun;
-  UINT32                OverRun;
-  BOOLEAN               TransactionComplete;
-  UINTN                 WorkingBufferSize;
-  UINT8                 *WorkingBuffer;
-  UINTN                 Length;
-  UINT8                 *Data;
-  UINT8                 *PreData;
-  UINTN                 IsBufferAligned;
-  UINTN                 DataBufferSize;
-  BOOLEAN               LastWrite;
-
-  Private   = DISK_IO_PRIVATE_DATA_FROM_THIS (This);
-
-  BlockIo   = Private->BlockIo;
-  Media     = BlockIo->Media;
-  BlockSize = Media->BlockSize;
-
-  if (Media->ReadOnly) {
-    return EFI_WRITE_PROTECTED;
-  }
-
-  if (Media->MediaId != MediaId) {
-    return EFI_MEDIA_CHANGED;
-  }
-
-  DataBufferSize = BlockSize * DATA_BUFFER_BLOCK_NUM;
-
-  if (Media->IoAlign > 1) {
-    PreData = AllocatePool (DataBufferSize + Media->IoAlign);
-    Data    = PreData - ((UINTN) PreData & (Media->IoAlign - 1)) + Media->IoAlign;
-  } else {
-    PreData = AllocatePool (DataBufferSize);
-    Data    = PreData;
-  }
-
-  if (PreData == NULL) {
-    return EFI_OUT_OF_RESOURCES;
-  }
-
-  WorkingBuffer       = Buffer;
-  WorkingBufferSize   = BufferSize;
-
-  Lba                 = DivU64x32Remainder (Offset, BlockSize, &UnderRun);
-
-  Length              = BlockSize - UnderRun;
-  TransactionComplete = FALSE;
-
-  Status              = EFI_SUCCESS;
-  if (UnderRun != 0) {
-    //
-    // Offset starts in the middle of an Lba, so do read modify write.
-    //
-    Status = BlockIo->ReadBlocks (
-                        BlockIo,
-                        MediaId,
-                        Lba,
-                        BlockSize,
-                        Data
-                        );
-
-    if (EFI_ERROR (Status)) {
-      goto Done;
-    }
-
-    if (Length > BufferSize) {
-      Length              = BufferSize;
-      TransactionComplete = TRUE;
-    }
-
-    CopyMem (Data + UnderRun, WorkingBuffer, Length);
-
-    Status = BlockIo->WriteBlocks (
-                        BlockIo,
-                        MediaId,
-                        Lba,
-                        BlockSize,
-                        Data
-                        );
-    if (EFI_ERROR (Status)) {
-      goto Done;
-    }
-
-    WorkingBuffer += Length;
-    WorkingBufferSize -= Length;
-    if (WorkingBufferSize == 0) {
-      goto Done;
-    }
-
-    Lba += 1;
-  }
-
-  OverRunLba = Lba + DivU64x32Remainder (WorkingBufferSize, BlockSize, &OverRun);
-
-  if (!TransactionComplete && WorkingBufferSize >= BlockSize) {
-    //
-    // If the DiskIo maps directly to a BlockIo device do the write.
-    //
-    if (OverRun != 0) {
-      WorkingBufferSize -= OverRun;
-    }
-    //
-    // Check buffer alignment
-    //
-    IsBufferAligned = (UINTN) WorkingBuffer & (UINTN) (Media->IoAlign - 1);
-
-    if (Media->IoAlign <= 1 || IsBufferAligned == 0) {
-      //
-      // Alignment is satisfied, so write them together
-      //
-      Status = BlockIo->WriteBlocks (
-                          BlockIo,
-                          MediaId,
-                          Lba,
-                          WorkingBufferSize,
-                          WorkingBuffer
-                          );
-
-      if (EFI_ERROR (Status)) {
-        goto Done;
-      }
-
-      WorkingBuffer += WorkingBufferSize;
-
-    } else {
-      //
-      // The buffer parameter is not aligned with the request
-      // So use the allocated instead.
-      // It can fit almost all the cases.
-      //
-      LastWrite = FALSE;
-      do {
-        if (WorkingBufferSize <= DataBufferSize) {
-          //
-          // It is the last calling to writeblocks in this loop
-          //
-          DataBufferSize  = WorkingBufferSize;
-          LastWrite       = TRUE;
-        }
-
-        CopyMem (Data, WorkingBuffer, DataBufferSize);
-        Status = BlockIo->WriteBlocks (
-                            BlockIo,
-                            MediaId,
-                            Lba,
-                            DataBufferSize,
-                            Data
-                            );
-        if (EFI_ERROR (Status)) {
-          goto Done;
-        }
-
-        WorkingBufferSize -= DataBufferSize;
-        WorkingBuffer += DataBufferSize;
-        Lba += DATA_BUFFER_BLOCK_NUM;
-      } while (!LastWrite);
-    }
-  }
-
-  if (!TransactionComplete && OverRun != 0) {
-    //
-    // Last bit is not a complete block, so do a read modify write.
-    //
-    Status = BlockIo->ReadBlocks (
-                        BlockIo,
-                        MediaId,
-                        OverRunLba,
-                        BlockSize,
-                        Data
-                        );
-
-    if (EFI_ERROR (Status)) {
-      goto Done;
-    }
-
-    CopyMem (Data, WorkingBuffer, OverRun);
-
-    Status = BlockIo->WriteBlocks (
-                        BlockIo,
-                        MediaId,
-                        OverRunLba,
-                        BlockSize,
-                        Data
-                        );
-    if (EFI_ERROR (Status)) {
-      goto Done;
-    }
-  }
-
-Done:
-  if (PreData != NULL) {
-    gBS->FreePool (PreData);
-  }
-
-  return Status;
-}
+/*++

+

+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:

+

+  DiskIo.c

+

+Abstract:

+

+  DiskIo driver that layers it's self on every Block IO protocol in the system.

+  DiskIo converts a block oriented device to a byte oriented device.

+

+  ReadDisk may have to do reads that are not aligned on sector boundaries.

+  There are three cases:

+

+    UnderRun - The first byte is not on a sector boundary or the read request is

+               less than a sector in length.

+

+    Aligned  - A read of N contiguous sectors.

+

+    OverRun  - The last byte is not on a sector boundary.

+

+--*/

+

+#include "DiskIo.h"

+

+//

+// Prototypes

+// Driver model protocol interface

+//

+EFI_STATUS

+EFIAPI

+DiskIoDriverBindingSupported (

+  IN EFI_DRIVER_BINDING_PROTOCOL    *This,

+  IN EFI_HANDLE                     ControllerHandle,

+  IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath

+  );

+

+EFI_STATUS

+EFIAPI

+DiskIoDriverBindingStart (

+  IN EFI_DRIVER_BINDING_PROTOCOL    *This,

+  IN EFI_HANDLE                     ControllerHandle,

+  IN EFI_DEVICE_PATH_PROTOCOL       *RemainingDevicePath

+  );

+

+EFI_STATUS

+EFIAPI

+DiskIoDriverBindingStop (

+  IN  EFI_DRIVER_BINDING_PROTOCOL    *This,

+  IN  EFI_HANDLE                     ControllerHandle,

+  IN  UINTN                          NumberOfChildren,

+  IN  EFI_HANDLE                     *ChildHandleBuffer

+  );

+

+//

+// Disk I/O Protocol Interface

+//

+EFI_STATUS

+EFIAPI

+DiskIoReadDisk (

+  IN EFI_DISK_IO_PROTOCOL  *This,

+  IN UINT32                MediaId,

+  IN UINT64                Offset,

+  IN UINTN                 BufferSize,

+  OUT VOID                 *Buffer

+  );

+

+EFI_STATUS

+EFIAPI

+DiskIoWriteDisk (

+  IN EFI_DISK_IO_PROTOCOL  *This,

+  IN UINT32                MediaId,

+  IN UINT64                Offset,

+  IN UINTN                 BufferSize,

+  IN VOID                  *Buffer

+  );

+

+EFI_DRIVER_BINDING_PROTOCOL gDiskIoDriverBinding = {

+  DiskIoDriverBindingSupported,

+  DiskIoDriverBindingStart,

+  DiskIoDriverBindingStop,

+  0x10,

+  NULL,

+  NULL

+};

+

+DISK_IO_PRIVATE_DATA        gDiskIoPrivateDataTemplate = {

+  DISK_IO_PRIVATE_DATA_SIGNATURE,

+  {

+    EFI_DISK_IO_PROTOCOL_REVISION,

+    DiskIoReadDisk,

+    DiskIoWriteDisk

+  },

+  NULL

+};

+

+EFI_STATUS

+EFIAPI

+DiskIoDriverBindingSupported (

+  IN EFI_DRIVER_BINDING_PROTOCOL  *This,

+  IN EFI_HANDLE                   ControllerHandle,

+  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath OPTIONAL

+  )

+/*++

+

+  Routine Description:

+    Test to see if this driver supports ControllerHandle. Any ControllerHandle

+    than contains a BlockIo protocol can be supported.

+

+  Arguments:

+    This                - Protocol instance pointer.

+    ControllerHandle    - Handle of device to test.

+    RemainingDevicePath - Not used.

+

+  Returns:

+    EFI_SUCCESS         - This driver supports this device.

+    EFI_ALREADY_STARTED - This driver is already running on this device.

+    other               - This driver does not support this device.

+

+--*/

+{

+  EFI_STATUS            Status;

+  EFI_BLOCK_IO_PROTOCOL *BlockIo;

+

+  //

+  // Open the IO Abstraction(s) needed to perform the supported test.

+  //

+  Status = gBS->OpenProtocol (

+                  ControllerHandle,

+                  &gEfiBlockIoProtocolGuid,

+                  (VOID **) &BlockIo,

+                  This->DriverBindingHandle,

+                  ControllerHandle,

+                  EFI_OPEN_PROTOCOL_BY_DRIVER

+                  );

+  if (EFI_ERROR (Status)) {

+    return Status;

+  }

+  //

+  // Close the I/O Abstraction(s) used to perform the supported test.

+  //

+  gBS->CloseProtocol (

+        ControllerHandle,

+        &gEfiBlockIoProtocolGuid,

+        This->DriverBindingHandle,

+        ControllerHandle

+        );

+  return EFI_SUCCESS;

+}

+

+EFI_STATUS

+EFIAPI

+DiskIoDriverBindingStart (

+  IN EFI_DRIVER_BINDING_PROTOCOL  *This,

+  IN EFI_HANDLE                   ControllerHandle,

+  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath OPTIONAL

+  )

+/*++

+

+  Routine Description:

+    Start this driver on ControllerHandle by opening a Block IO protocol and

+    installing a Disk IO protocol on ControllerHandle.

+

+  Arguments:

+    This                - Protocol instance pointer.

+    ControllerHandle    - Handle of device to bind driver to.

+    RemainingDevicePath - Not used, always produce all possible children.

+

+  Returns:

+    EFI_SUCCESS         - This driver is added to ControllerHandle.

+    EFI_ALREADY_STARTED - This driver is already running on ControllerHandle.

+    other               - This driver does not support this device.

+

+--*/

+{

+  EFI_STATUS            Status;

+  DISK_IO_PRIVATE_DATA  *Private;

+

+  Private = NULL;

+

+  //

+  // Connect to the Block IO interface on ControllerHandle.

+  //

+  Status = gBS->OpenProtocol (

+                  ControllerHandle,

+                  &gEfiBlockIoProtocolGuid,

+                  (VOID **) &gDiskIoPrivateDataTemplate.BlockIo,

+                  This->DriverBindingHandle,

+                  ControllerHandle,

+                  EFI_OPEN_PROTOCOL_BY_DRIVER

+                  );

+  if (EFI_ERROR (Status)) {

+    return Status;

+  }

+  //

+  // Initialize the Disk IO device instance.

+  //

+  Private = AllocateCopyPool (sizeof (DISK_IO_PRIVATE_DATA), &gDiskIoPrivateDataTemplate);

+  if (Private == NULL) {

+    Status = EFI_OUT_OF_RESOURCES;

+    goto ErrorExit;

+  }

+  //

+  // Install protocol interfaces for the Disk IO device.

+  //

+  Status = gBS->InstallProtocolInterface (

+                  &ControllerHandle,

+                  &gEfiDiskIoProtocolGuid,

+                  EFI_NATIVE_INTERFACE,

+                  &Private->DiskIo

+                  );

+

+ErrorExit:

+  if (EFI_ERROR (Status)) {

+

+    if (Private != NULL) {

+      gBS->FreePool (Private);

+    }

+

+    gBS->CloseProtocol (

+          ControllerHandle,

+          &gEfiBlockIoProtocolGuid,

+          This->DriverBindingHandle,

+          ControllerHandle

+          );

+  }

+

+  return Status;

+}

+

+EFI_STATUS

+EFIAPI

+DiskIoDriverBindingStop (

+  IN  EFI_DRIVER_BINDING_PROTOCOL    *This,

+  IN  EFI_HANDLE                     ControllerHandle,

+  IN  UINTN                          NumberOfChildren,

+  IN  EFI_HANDLE                     *ChildHandleBuffer

+  )

+/*++

+

+  Routine Description:

+    Stop this driver on ControllerHandle by removing Disk IO protocol and closing

+    the Block IO protocol on ControllerHandle.

+

+  Arguments:

+    This              - Protocol instance pointer.

+    ControllerHandle  - Handle of device to stop driver on.

+    NumberOfChildren  - Not used.

+    ChildHandleBuffer - Not used.

+

+  Returns:

+    EFI_SUCCESS         - This driver is removed ControllerHandle.

+    other               - This driver was not removed from this device.

+    EFI_UNSUPPORTED

+

+--*/

+{

+  EFI_STATUS            Status;

+  EFI_DISK_IO_PROTOCOL  *DiskIo;

+  DISK_IO_PRIVATE_DATA  *Private;

+

+  //

+  // Get our context back.

+  //

+  Status = gBS->OpenProtocol (

+                  ControllerHandle,

+                  &gEfiDiskIoProtocolGuid,

+                  (VOID **) &DiskIo,

+                  This->DriverBindingHandle,

+                  ControllerHandle,

+                  EFI_OPEN_PROTOCOL_GET_PROTOCOL

+                  );

+  if (EFI_ERROR (Status)) {

+    return EFI_UNSUPPORTED;

+  }

+

+  Private = DISK_IO_PRIVATE_DATA_FROM_THIS (DiskIo);

+

+  Status = gBS->UninstallProtocolInterface (

+                  ControllerHandle,

+                  &gEfiDiskIoProtocolGuid,

+                  &Private->DiskIo

+                  );

+  if (!EFI_ERROR (Status)) {

+

+    Status = gBS->CloseProtocol (

+                    ControllerHandle,

+                    &gEfiBlockIoProtocolGuid,

+                    This->DriverBindingHandle,

+                    ControllerHandle

+                    );

+  }

+

+  if (!EFI_ERROR (Status)) {

+    gBS->FreePool (Private);

+  }

+

+  return Status;

+}

+

+EFI_STATUS

+EFIAPI

+DiskIoReadDisk (

+  IN EFI_DISK_IO_PROTOCOL  *This,

+  IN UINT32                MediaId,

+  IN UINT64                Offset,

+  IN UINTN                 BufferSize,

+  OUT VOID                 *Buffer

+  )

+/*++

+

+  Routine Description:

+    Read BufferSize bytes from Offset into Buffer.

+

+    Reads may support reads that are not aligned on

+    sector boundaries. There are three cases:

+

+      UnderRun - The first byte is not on a sector boundary or the read request is

+                 less than a sector in length.

+

+      Aligned  - A read of N contiguous sectors.

+

+      OverRun  - The last byte is not on a sector boundary.

+

+

+  Arguments:

+    This       - Protocol instance pointer.

+    MediaId    - Id of the media, changes every time the media is replaced.

+    Offset     - The starting byte offset to read from.

+    BufferSize - Size of Buffer.

+    Buffer     - Buffer containing read data.

+

+  Returns:

+    EFI_SUCCESS           - The data was read correctly from the device.

+    EFI_DEVICE_ERROR      - The device reported an error while performing the read.

+    EFI_NO_MEDIA          - There is no media in the device.

+    EFI_MEDIA_CHNAGED     - The MediaId does not matched the current device.

+    EFI_INVALID_PARAMETER - The read request contains device addresses that are not

+                            valid for the device.

+    EFI_OUT_OF_RESOURCES

+

+--*/

+{

+  EFI_STATUS            Status;

+  DISK_IO_PRIVATE_DATA  *Private;

+  EFI_BLOCK_IO_PROTOCOL *BlockIo;

+  EFI_BLOCK_IO_MEDIA    *Media;

+  UINT32                BlockSize;

+  UINT64                Lba;

+  UINT64                OverRunLba;

+  UINT32                UnderRun;

+  UINT32                OverRun;

+  BOOLEAN               TransactionComplete;

+  UINTN                 WorkingBufferSize;

+  UINT8                 *WorkingBuffer;

+  UINTN                 Length;

+  UINT8                 *Data;

+  UINT8                 *PreData;

+  UINTN                 IsBufferAligned;

+  UINTN                 DataBufferSize;

+  BOOLEAN               LastRead;

+

+  Private   = DISK_IO_PRIVATE_DATA_FROM_THIS (This);

+

+  BlockIo   = Private->BlockIo;

+  Media     = BlockIo->Media;

+  BlockSize = Media->BlockSize;

+

+  if (Media->MediaId != MediaId) {

+    return EFI_MEDIA_CHANGED;

+  }

+

+  WorkingBuffer     = Buffer;

+  WorkingBufferSize = BufferSize;

+

+  //

+  // Allocate a temporary buffer for operation

+  //

+  DataBufferSize = BlockSize * DATA_BUFFER_BLOCK_NUM;

+

+  if (Media->IoAlign > 1) {

+    PreData = AllocatePool (DataBufferSize + Media->IoAlign);

+    Data    = PreData - ((UINTN) PreData & (Media->IoAlign - 1)) + Media->IoAlign;

+  } else {

+    PreData = AllocatePool (DataBufferSize);

+    Data    = PreData;

+  }

+

+  if (PreData == NULL) {

+    return EFI_OUT_OF_RESOURCES;

+  }

+

+  Lba                 = DivU64x32Remainder (Offset, BlockSize, &UnderRun);

+

+  Length              = BlockSize - UnderRun;

+  TransactionComplete = FALSE;

+

+  Status              = EFI_SUCCESS;

+  if (UnderRun != 0) {

+    //

+    // Offset starts in the middle of an Lba, so read the entire block.

+    //

+    Status = BlockIo->ReadBlocks (

+                        BlockIo,

+                        MediaId,

+                        Lba,

+                        BlockSize,

+                        Data

+                        );

+

+    if (EFI_ERROR (Status)) {

+      goto Done;

+    }

+

+    if (Length > BufferSize) {

+      Length              = BufferSize;

+      TransactionComplete = TRUE;

+    }

+

+    CopyMem (WorkingBuffer, Data + UnderRun, Length);

+

+    WorkingBuffer += Length;

+

+    WorkingBufferSize -= Length;

+    if (WorkingBufferSize == 0) {

+      goto Done;

+    }

+

+    Lba += 1;

+  }

+

+  OverRunLba = Lba + DivU64x32Remainder (WorkingBufferSize, BlockSize, &OverRun);

+

+  if (!TransactionComplete && WorkingBufferSize >= BlockSize) {

+    //

+    // If the DiskIo maps directly to a BlockIo device do the read.

+    //

+    if (OverRun != 0) {

+      WorkingBufferSize -= OverRun;

+    }

+    //

+    // Check buffer alignment

+    //

+    IsBufferAligned = (UINTN) WorkingBuffer & (UINTN) (Media->IoAlign - 1);

+

+    if (Media->IoAlign <= 1 || IsBufferAligned == 0) {

+      //

+      // Alignment is satisfied, so read them together

+      //

+      Status = BlockIo->ReadBlocks (

+                          BlockIo,

+                          MediaId,

+                          Lba,

+                          WorkingBufferSize,

+                          WorkingBuffer

+                          );

+

+      if (EFI_ERROR (Status)) {

+        goto Done;

+      }

+

+      WorkingBuffer += WorkingBufferSize;

+

+    } else {

+      //

+      // Use the allocated buffer instead of the original buffer

+      // to avoid alignment issue.

+      // Here, the allocated buffer (8-byte align) can satisfy the alignment

+      //

+      LastRead = FALSE;

+      do {

+        if (WorkingBufferSize <= DataBufferSize) {

+          //

+          // It is the last calling to readblocks in this loop

+          //

+          DataBufferSize  = WorkingBufferSize;

+          LastRead        = TRUE;

+        }

+

+        Status = BlockIo->ReadBlocks (

+                            BlockIo,

+                            MediaId,

+                            Lba,

+                            DataBufferSize,

+                            Data

+                            );

+        if (EFI_ERROR (Status)) {

+          goto Done;

+        }

+

+        CopyMem (WorkingBuffer, Data, DataBufferSize);

+        WorkingBufferSize -= DataBufferSize;

+        WorkingBuffer += DataBufferSize;

+        Lba += DATA_BUFFER_BLOCK_NUM;

+      } while (!LastRead);

+    }

+  }

+

+  if (!TransactionComplete && OverRun != 0) {

+    //

+    // Last read is not a complete block.

+    //

+    Status = BlockIo->ReadBlocks (

+                        BlockIo,

+                        MediaId,

+                        OverRunLba,

+                        BlockSize,

+                        Data

+                        );

+

+    if (EFI_ERROR (Status)) {

+      goto Done;

+    }

+

+    CopyMem (WorkingBuffer, Data, OverRun);

+  }

+

+Done:

+  if (PreData != NULL) {

+    gBS->FreePool (PreData);

+  }

+

+  return Status;

+}

+

+EFI_STATUS

+EFIAPI

+DiskIoWriteDisk (

+  IN EFI_DISK_IO_PROTOCOL  *This,

+  IN UINT32                MediaId,

+  IN UINT64                Offset,

+  IN UINTN                 BufferSize,

+  IN VOID                  *Buffer

+  )

+/*++

+

+  Routine Description:

+    Read BufferSize bytes from Offset into Buffer.

+

+    Writes may require a read modify write to support writes that are not

+    aligned on sector boundaries. There are three cases:

+

+      UnderRun - The first byte is not on a sector boundary or the write request

+                 is less than a sector in length. Read modify write is required.

+

+      Aligned  - A write of N contiguous sectors.

+

+      OverRun  - The last byte is not on a sector boundary. Read modified write

+                 required.

+

+  Arguments:

+    This       - Protocol instance pointer.

+    MediaId    - Id of the media, changes every time the media is replaced.

+    Offset     - The starting byte offset to read from.

+    BufferSize - Size of Buffer.

+    Buffer     - Buffer containing read data.

+

+  Returns:

+    EFI_SUCCESS           - The data was written correctly to the device.

+    EFI_WRITE_PROTECTED   - The device can not be written to.

+    EFI_DEVICE_ERROR      - The device reported an error while performing the write.

+    EFI_NO_MEDIA          - There is no media in the device.

+    EFI_MEDIA_CHNAGED     - The MediaId does not matched the current device.

+    EFI_INVALID_PARAMETER - The write request contains device addresses that are not

+                            valid for the device.

+    EFI_OUT_OF_RESOURCES

+

+--*/

+{

+  EFI_STATUS            Status;

+  DISK_IO_PRIVATE_DATA  *Private;

+  EFI_BLOCK_IO_PROTOCOL *BlockIo;

+  EFI_BLOCK_IO_MEDIA    *Media;

+  UINT32                BlockSize;

+  UINT64                Lba;

+  UINT64                OverRunLba;

+  UINT32                UnderRun;

+  UINT32                OverRun;

+  BOOLEAN               TransactionComplete;

+  UINTN                 WorkingBufferSize;

+  UINT8                 *WorkingBuffer;

+  UINTN                 Length;

+  UINT8                 *Data;

+  UINT8                 *PreData;

+  UINTN                 IsBufferAligned;

+  UINTN                 DataBufferSize;

+  BOOLEAN               LastWrite;

+

+  Private   = DISK_IO_PRIVATE_DATA_FROM_THIS (This);

+

+  BlockIo   = Private->BlockIo;

+  Media     = BlockIo->Media;

+  BlockSize = Media->BlockSize;

+

+  if (Media->ReadOnly) {

+    return EFI_WRITE_PROTECTED;

+  }

+

+  if (Media->MediaId != MediaId) {

+    return EFI_MEDIA_CHANGED;

+  }

+

+  DataBufferSize = BlockSize * DATA_BUFFER_BLOCK_NUM;

+

+  if (Media->IoAlign > 1) {

+    PreData = AllocatePool (DataBufferSize + Media->IoAlign);

+    Data    = PreData - ((UINTN) PreData & (Media->IoAlign - 1)) + Media->IoAlign;

+  } else {

+    PreData = AllocatePool (DataBufferSize);

+    Data    = PreData;

+  }

+

+  if (PreData == NULL) {

+    return EFI_OUT_OF_RESOURCES;

+  }

+

+  WorkingBuffer       = Buffer;

+  WorkingBufferSize   = BufferSize;

+

+  Lba                 = DivU64x32Remainder (Offset, BlockSize, &UnderRun);

+

+  Length              = BlockSize - UnderRun;

+  TransactionComplete = FALSE;

+

+  Status              = EFI_SUCCESS;

+  if (UnderRun != 0) {

+    //

+    // Offset starts in the middle of an Lba, so do read modify write.

+    //

+    Status = BlockIo->ReadBlocks (

+                        BlockIo,

+                        MediaId,

+                        Lba,

+                        BlockSize,

+                        Data

+                        );

+

+    if (EFI_ERROR (Status)) {

+      goto Done;

+    }

+

+    if (Length > BufferSize) {

+      Length              = BufferSize;

+      TransactionComplete = TRUE;

+    }

+

+    CopyMem (Data + UnderRun, WorkingBuffer, Length);

+

+    Status = BlockIo->WriteBlocks (

+                        BlockIo,

+                        MediaId,

+                        Lba,

+                        BlockSize,

+                        Data

+                        );

+    if (EFI_ERROR (Status)) {

+      goto Done;

+    }

+

+    WorkingBuffer += Length;

+    WorkingBufferSize -= Length;

+    if (WorkingBufferSize == 0) {

+      goto Done;

+    }

+

+    Lba += 1;

+  }

+

+  OverRunLba = Lba + DivU64x32Remainder (WorkingBufferSize, BlockSize, &OverRun);

+

+  if (!TransactionComplete && WorkingBufferSize >= BlockSize) {

+    //

+    // If the DiskIo maps directly to a BlockIo device do the write.

+    //

+    if (OverRun != 0) {

+      WorkingBufferSize -= OverRun;

+    }

+    //

+    // Check buffer alignment

+    //

+    IsBufferAligned = (UINTN) WorkingBuffer & (UINTN) (Media->IoAlign - 1);

+

+    if (Media->IoAlign <= 1 || IsBufferAligned == 0) {

+      //

+      // Alignment is satisfied, so write them together

+      //

+      Status = BlockIo->WriteBlocks (

+                          BlockIo,

+                          MediaId,

+                          Lba,

+                          WorkingBufferSize,

+                          WorkingBuffer

+                          );

+

+      if (EFI_ERROR (Status)) {

+        goto Done;

+      }

+

+      WorkingBuffer += WorkingBufferSize;

+

+    } else {

+      //

+      // The buffer parameter is not aligned with the request

+      // So use the allocated instead.

+      // It can fit almost all the cases.

+      //

+      LastWrite = FALSE;

+      do {

+        if (WorkingBufferSize <= DataBufferSize) {

+          //

+          // It is the last calling to writeblocks in this loop

+          //

+          DataBufferSize  = WorkingBufferSize;

+          LastWrite       = TRUE;

+        }

+

+        CopyMem (Data, WorkingBuffer, DataBufferSize);

+        Status = BlockIo->WriteBlocks (

+                            BlockIo,

+                            MediaId,

+                            Lba,

+                            DataBufferSize,

+                            Data

+                            );

+        if (EFI_ERROR (Status)) {

+          goto Done;

+        }

+

+        WorkingBufferSize -= DataBufferSize;

+        WorkingBuffer += DataBufferSize;

+        Lba += DATA_BUFFER_BLOCK_NUM;

+      } while (!LastWrite);

+    }

+  }

+

+  if (!TransactionComplete && OverRun != 0) {

+    //

+    // Last bit is not a complete block, so do a read modify write.

+    //

+    Status = BlockIo->ReadBlocks (

+                        BlockIo,

+                        MediaId,

+                        OverRunLba,

+                        BlockSize,

+                        Data

+                        );

+

+    if (EFI_ERROR (Status)) {

+      goto Done;

+    }

+

+    CopyMem (Data, WorkingBuffer, OverRun);

+

+    Status = BlockIo->WriteBlocks (

+                        BlockIo,

+                        MediaId,

+                        OverRunLba,

+                        BlockSize,

+                        Data

+                        );

+    if (EFI_ERROR (Status)) {

+      goto Done;

+    }

+  }

+

+Done:

+  if (PreData != NULL) {

+    gBS->FreePool (PreData);

+  }

+

+  return Status;

+}