Remove diskio.c

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2840 6f19259b-4bc3-4df7-8a09-765794883524

1 files changed, 0 insertions, 737 deletions

diff --git a/MdeModulePkg/Universal/Disk/DiskIo/Dxe/diskio.c b/MdeModulePkg/Universal/Disk/DiskIo/Dxe/diskio.c
deleted file mode 100644
index 0cb4922..0000000
--- a/MdeModulePkg/Universal/Disk/DiskIo/Dxe/diskio.c
+++ /dev/null
@@ -1,737 +0,0 @@
-/** @file

-  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.

-

-  Copyright (c) 2006 - 2007, 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.             

-

-**/

-

-#include "DiskIo.h"

-

-EFI_DRIVER_BINDING_PROTOCOL gDiskIoDriverBinding = {

-  DiskIoDriverBindingSupported,

-  DiskIoDriverBindingStart,

-  DiskIoDriverBindingStop,

-  0xa,

-  NULL,

-  NULL

-};

-

-DISK_IO_PRIVATE_DATA        gDiskIoPrivateDataTemplate = {

-  DISK_IO_PRIVATE_DATA_SIGNATURE,

-  {

-    EFI_DISK_IO_PROTOCOL_REVISION,

-    DiskIoReadDisk,

-    DiskIoWriteDisk

-  },

-  NULL

-};

-

-

-/**

-  Test to see if this driver supports ControllerHandle. 

-

-  @param  This                Protocol instance pointer.

-  @param  ControllerHandle    Handle of device to test

-  @param  RemainingDevicePath Optional parameter use to pick a specific child

-                              device to start.

-

-  @retval EFI_SUCCESS         This driver supports this device

-  @retval EFI_ALREADY_STARTED This driver is already running on this device

-  @retval other               This driver does not support this device

-

-**/

-EFI_STATUS

-EFIAPI

-DiskIoDriverBindingSupported (

-  IN EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN EFI_HANDLE                   ControllerHandle,

-  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath OPTIONAL

-  )

-{

-  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;

-}

-

-

-/**

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

-  installing a Disk IO protocol on ControllerHandle.

-

-  @param  This                 Protocol instance pointer.

-  @param  ControllerHandle     Handle of device to bind driver to

-  @param  RemainingDevicePath  Optional parameter use to pick a specific child

-                               device to start.

-

-  @retval EFI_SUCCESS          This driver is added to ControllerHandle

-  @retval EFI_ALREADY_STARTED  This driver is already running on ControllerHandle

-  @retval other                This driver does not support this device

-

-**/

-EFI_STATUS

-EFIAPI

-DiskIoDriverBindingStart (

-  IN EFI_DRIVER_BINDING_PROTOCOL  *This,

-  IN EFI_HANDLE                   ControllerHandle,

-  IN EFI_DEVICE_PATH_PROTOCOL     *RemainingDevicePath OPTIONAL

-  )

-{

-  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) {

-      FreePool (Private);

-    }

-

-    gBS->CloseProtocol (

-          ControllerHandle,

-          &gEfiBlockIoProtocolGuid,

-          This->DriverBindingHandle,

-          ControllerHandle

-          );

-  }

-

-  return Status;

-}

-

-

-/**

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

-  the Block IO protocol on ControllerHandle.

-

-  @param  This              Protocol instance pointer.

-  @param  ControllerHandle  Handle of device to stop driver on

-  @param  NumberOfChildren  Number of Handles in ChildHandleBuffer. If number of

-                            children is zero stop the entire bus driver.

-  @param  ChildHandleBuffer List of Child Handles to Stop.

-

-  @retval EFI_SUCCESS       This driver is removed ControllerHandle

-  @retval other             This driver was not removed from this device

-

-**/

-EFI_STATUS

-EFIAPI

-DiskIoDriverBindingStop (

-  IN  EFI_DRIVER_BINDING_PROTOCOL    *This,

-  IN  EFI_HANDLE                     ControllerHandle,

-  IN  UINTN                          NumberOfChildren,

-  IN  EFI_HANDLE                     *ChildHandleBuffer

-  )

-{

-  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)) {

-    FreePool (Private);

-  }

-

-  return Status;

-}

-

-

-

-/**

-  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.

-

-  @param  This                  Protocol instance pointer.

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

-  @param  Offset                The starting byte offset to read from

-  @param  BufferSize            Size of Buffer

-  @param  Buffer                Buffer containing read data

-

-  @retval EFI_SUCCESS           The data was read correctly from the device.

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

-  @retval EFI_NO_MEDIA          There is no media in the device.

-  @retval EFI_MEDIA_CHNAGED     The MediaId does not matched the current device.

-  @retval EFI_INVALID_PARAMETER The read request contains device addresses that are not

-                                valid for the device.

-

-**/

-EFI_STATUS

-EFIAPI

-DiskIoReadDisk (

-  IN EFI_DISK_IO_PROTOCOL  *This,

-  IN UINT32                MediaId,

-  IN UINT64                Offset,

-  IN UINTN                 BufferSize,

-  OUT VOID                 *Buffer

-  )

-{

-  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) {

-    FreePool (PreData);

-  }

-

-  return Status;

-}

-

-

-/**

-  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.

-

-  @param  This       Protocol instance pointer.

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

-  @param  Offset     The starting byte offset to read from

-  @param  BufferSize Size of Buffer

-  @param  Buffer     Buffer containing read data

-

-  @retval EFI_SUCCESS           The data was written correctly to the device.

-  @retval EFI_WRITE_PROTECTED   The device can not be written to.

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

-  @retval EFI_NO_MEDIA          There is no media in the device.

-  @retval EFI_MEDIA_CHNAGED     The MediaId does not matched the current device.

-  @retval EFI_INVALID_PARAMETER The write request contains device addresses that are not

-                                 valid for the device.

-

-**/

-EFI_STATUS

-EFIAPI

-DiskIoWriteDisk (

-  IN EFI_DISK_IO_PROTOCOL  *This,

-  IN UINT32                MediaId,

-  IN UINT64                Offset,

-  IN UINTN                 BufferSize,

-  IN VOID                  *Buffer

-  )

-{

-  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) {

-    FreePool (PreData);

-  }

-

-  return Status;

-}

-

-

-/**

-  The user Entry Point for module DiskIo. The user code starts with this function.

-

-  @param[in] ImageHandle    The firmware allocated handle for the EFI image.  

-  @param[in] SystemTable    A pointer to the EFI System Table.

-  

-  @retval EFI_SUCCESS       The entry point is executed successfully.

-  @retval other             Some error occurs when executing this entry point.

-

-**/

-EFI_STATUS

-EFIAPI

-InitializeDiskIo (

-  IN EFI_HANDLE           ImageHandle,

-  IN EFI_SYSTEM_TABLE     *SystemTable

-  )

-{

-  EFI_STATUS              Status;

-

-  //

-  // Install driver model protocol(s).

-  //

-  Status = EfiLibInstallAllDriverProtocols (

-             ImageHandle,

-             SystemTable,

-             &gDiskIoDriverBinding,

-             ImageHandle,

-             &gDiskIoComponentName,

-             NULL,

-             NULL

-             );

-  ASSERT_EFI_ERROR (Status);

-

-

-  return Status;

-}

-