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pdated code per coding standard. Changed comments, converted all \ to / and removed the extra generated files by merging them into existing files.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@2736 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
AJFISH
2007-06-26 00:32:26 +00:00
parent cf61682357
commit b9575d6030
18 changed files with 996 additions and 1063 deletions
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356
MdeModulePkg/Universal/Disk/Partition/Dxe/Partition.c
View File

@@ -1,31 +1,20 @@
/*++
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:
Partition.c
Abstract:
/** @file
Partition driver that produces logical BlockIo devices from a physical
BlockIo device. The logical BlockIo devices are based on the format
of the raw block devices media. Currently "El Torito CD-ROM", Legacy
MBR, and GPT partition schemes are supported.
--*/
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 common header file for this module.
//
#include "CommonHeader.h"
#include "Partition.h"
@@ -50,6 +39,21 @@ PARTITION_DETECT_ROUTINE mPartitionDetectRoutineTable[] = {
};
/**
Test to see if this driver supports ControllerHandle. Any ControllerHandle
than contains a BlockIo and DiskIo protocol can be supported.
@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
PartitionDriverBindingSupported (
@@ -57,23 +61,6 @@ PartitionDriverBindingSupported (
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Test to see if this driver supports ControllerHandle. Any ControllerHandle
than contains a BlockIo and DiskIo 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
EFI_UNSUPPORTED - This driver does not support this device
--*/
{
EFI_STATUS Status;
EFI_DEVICE_PATH_PROTOCOL *ParentDevicePath;
@@ -160,6 +147,22 @@ PartitionDriverBindingSupported (
return Status;
}
/**
Start this driver on ControllerHandle by opening a Block IO and Disk IO
protocol, reading Device Path, and creating a child handle with a
Disk IO and device path protocol.
@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
PartitionDriverBindingStart (
@@ -167,24 +170,6 @@ PartitionDriverBindingStart (
IN EFI_HANDLE ControllerHandle,
IN EFI_DEVICE_PATH_PROTOCOL *RemainingDevicePath
)
/*++
Routine Description:
Start this driver on ControllerHandle by opening a Block IO and Disk IO
protocol, reading Device Path, and creating a child handle with a
Disk IO and device path protocol.
Arguments:
This - Protocol instance pointer.
ControllerHandle - Handle of device to bind driver to
RemainingDevicePath - Not used
Returns:
EFI_SUCCESS - This driver is added to DeviceHandle
EFI_ALREADY_STARTED - This driver is already running on DeviceHandle
other - This driver does not support this device
--*/
{
EFI_STATUS Status;
EFI_STATUS OpenStatus;
@@ -289,6 +274,21 @@ PartitionDriverBindingStart (
return Status;
}
/**
Stop this driver on ControllerHandle. Support stoping any child handles
created by this driver.
@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
PartitionDriverBindingStop (
@@ -297,23 +297,6 @@ PartitionDriverBindingStop (
IN UINTN NumberOfChildren,
IN EFI_HANDLE *ChildHandleBuffer
)
/*++
Routine Description:
Stop this driver on ControllerHandle. Support stoping any child handles
created by this driver.
Arguments:
This - Protocol instance pointer.
ControllerHandle - Handle of device to stop driver on
NumberOfChildren - Number of Children in the ChildHandleBuffer
ChildHandleBuffer - List of handles for the children we need to stop.
Returns:
EFI_SUCCESS - This driver is removed DeviceHandle
EFI_DEVICE_ERROR - This driver was not removed from this device
--*/
{
EFI_STATUS Status;
UINTN Index;
@@ -407,6 +390,18 @@ PartitionDriverBindingStop (
return EFI_SUCCESS;
}
/**
Reset the Block Device.
@param This Protocol instance pointer.
@param ExtendedVerification Driver may perform diagnostics on reset.
@retval EFI_SUCCESS The device was reset.
@retval EFI_DEVICE_ERROR The device is not functioning properly and could
not be reset.
**/
STATIC
EFI_STATUS
EFIAPI
@@ -414,21 +409,6 @@ PartitionReset (
IN EFI_BLOCK_IO_PROTOCOL *This,
IN BOOLEAN ExtendedVerification
)
/*++
Routine Description:
Reset the parent Block Device.
Arguments:
This - Protocol instance pointer.
ExtendedVerification - Driver may perform diagnostics on reset.
Returns:
EFI_SUCCESS - The device was reset.
EFI_DEVICE_ERROR - The device is not functioning properly and could
not be reset.
--*/
{
PARTITION_PRIVATE_DATA *Private;
@@ -440,6 +420,26 @@ PartitionReset (
);
}
/**
Read by using the Disk IO protocol on the parent device. Lba addresses
must be converted to byte offsets.
@param This Protocol instance pointer.
@param MediaId Id of the media, changes every time the media is replaced.
@param Lba The starting Logical Block Address to read from
@param BufferSize Size of Buffer, must be a multiple of device block size.
@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_CHANGED The MediaId does not matched the current device.
@retval EFI_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.
@retval EFI_INVALID_PARAMETER The read request contains device addresses that are not
valid for the device.
**/
STATIC
EFI_STATUS
EFIAPI
@@ -450,30 +450,6 @@ PartitionReadBlocks (
IN UINTN BufferSize,
OUT VOID *Buffer
)
/*++
Routine Description:
Read by using the Disk IO protocol on the parent device. Lba addresses
must be converted to byte offsets.
Arguments:
This - Protocol instance pointer.
MediaId - Id of the media, changes every time the media is replaced.
Lba - The starting Logical Block Address to read from
BufferSize - Size of Buffer, must be a multiple of device block size.
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_CHANGED - The MediaId does not matched the current device.
EFI_BAD_BUFFER_SIZE - The Buffer was not a multiple of the block size of the
device.
EFI_INVALID_PARAMETER - The read request contains device addresses that are not
valid for the device.
--*/
{
PARTITION_PRIVATE_DATA *Private;
UINT64 Offset;
@@ -496,6 +472,26 @@ PartitionReadBlocks (
return Private->DiskIo->ReadDisk (Private->DiskIo, MediaId, Offset, BufferSize, Buffer);
}
/**
Write by using the Disk IO protocol on the parent device. Lba addresses
must be converted to byte offsets.
@param This Protocol instance pointer.
@param MediaId Id of the media, changes every time the media is replaced.
@param Lba The starting Logical Block Address to read from
@param BufferSize Size of Buffer, must be a multiple of device block size.
@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_BAD_BUFFER_SIZE The Buffer was not a multiple of the block size of the device.
@retval EFI_INVALID_PARAMETER The write request contains a LBA that is not
valid for the device.
**/
STATIC
EFI_STATUS
EFIAPI
@@ -506,31 +502,6 @@ PartitionWriteBlocks (
IN UINTN BufferSize,
OUT VOID *Buffer
)
/*++
Routine Description:
Write by using the Disk IO protocol on the parent device. Lba addresses
must be converted to byte offsets.
Arguments:
This - Protocol instance pointer.
MediaId - Id of the media, changes every time the media is replaced.
Lba - The starting Logical Block Address to read from
BufferSize - Size of Buffer, must be a multiple of device block size.
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_BAD_BUFFER_SIZE - The Buffer was not a multiple of the block size of the
device.
EFI_INVALID_PARAMETER - The write request contains a LBA that is not
valid for the device.
--*/
{
PARTITION_PRIVATE_DATA *Private;
UINT64 Offset;
@@ -553,26 +524,23 @@ PartitionWriteBlocks (
return Private->DiskIo->WriteDisk (Private->DiskIo, MediaId, Offset, BufferSize, Buffer);
}
/**
Flush the parent Block Device.
@param This Protocol instance pointer.
@retval EFI_SUCCESS All outstanding data was written to the device
@retval EFI_DEVICE_ERROR The device reported an error while writting back the data
@retval EFI_NO_MEDIA There is no media in the device.
**/
STATIC
EFI_STATUS
EFIAPI
PartitionFlushBlocks (
IN EFI_BLOCK_IO_PROTOCOL *This
)
/*++
Routine Description:
Flush the parent Block Device.
Arguments:
This - Protocol instance pointer.
Returns:
EFI_SUCCESS - All outstanding data was written to the device
EFI_DEVICE_ERROR - The device reported an error while writing back the data
EFI_NO_MEDIA - There is no media in the device.
--*/
{
PARTITION_PRIVATE_DATA *Private;
@@ -581,6 +549,28 @@ PartitionFlushBlocks (
return Private->ParentBlockIo->FlushBlocks (Private->ParentBlockIo);
}
/**
Create a child handle for a logical block device that represents the
bytes Start to End of the Parent Block IO device.
@param[in] This Protocol instance pointer.
@param[in] This Calling context.
@param[in] ParentHandle Parent Handle for new child
@param[in] ParentDiskIo Parent DiskIo interface
@param[in] ParentBlockIo Parent BlockIo interface
@param[in] ParentDevicePath Parent Device Path
@param[in] DevicePathNode Child Device Path node
@param[in] Start Start Block
@param[in] End End Block
@param[in] BlockSize Child block size
@param[in] InstallEspGuid Flag to install EFI System Partition GUID on handle
@retval EFI_SUCCESS A child handle was added
@retval other A child handle was not added
**/
EFI_STATUS
PartitionInstallChildHandle (
IN EFI_DRIVER_BINDING_PROTOCOL *This,
@@ -594,29 +584,6 @@ PartitionInstallChildHandle (
IN UINT32 BlockSize,
IN BOOLEAN InstallEspGuid
)
/*++
Routine Description:
Create a child handle for a logical block device that represents the
bytes Start to End of the Parent Block IO device.
Arguments:
This - Calling context.
ParentHandle - Parent Handle for new child
ParentDiskIo - Parent DiskIo interface
ParentBlockIo - Parent BlockIo interface
ParentDevicePath - Parent Device Path
DevicePathNode - Child Device Path node
Start - Start Block
End - End Block
BlockSize - Child block size
InstallEspGuid - Flag to install EFI System Partition GUID on handle
Returns:
EFI_SUCCESS - If a child handle was added
EFI_OUT_OF_RESOURCES - A child handle was not added
--*/
{
EFI_STATUS Status;
PARTITION_PRIVATE_DATA *Private;
@@ -704,3 +671,42 @@ Returns:
return Status;
}
/**
The user Entry Point for module Partition. 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
InitializePartition (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
//
// Install driver model protocol(s).
//
Status = EfiLibInstallAllDriverProtocols (
ImageHandle,
SystemTable,
&gPartitionDriverBinding,
ImageHandle,
&gPartitionComponentName,
NULL,
NULL
);
ASSERT_EFI_ERROR (Status);
return Status;
}