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Modules cleanup.

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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3244 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
vanjeff
2007-07-16 05:48:11 +00:00
parent 9b4b2dcdd7
commit adbcbf8ffc
30 changed files with 4551 additions and 129 deletions
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174
MdeModulePkg/Universal/Disk/DiskIoDxe/ComponentName.c Normal file
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/** @file
UEFI Component Name protocol for DiskIo driver.
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 Component Name Protocol
//
EFI_COMPONENT_NAME_PROTOCOL gDiskIoComponentName = {
DiskIoComponentNameGetDriverName,
DiskIoComponentNameGetControllerName,
"eng"
};
static EFI_UNICODE_STRING_TABLE mDiskIoDriverNameTable[] = {
{
"eng",
(CHAR16 *)L"Generic Disk I/O Driver"
},
{
NULL,
NULL
}
};
/**
Retrieves a Unicode string that is the user readable name of
the EFI Driver.
@param This A pointer to the
EFI_COMPONENT_NAME_PROTOCOL instance.
@param Language A pointer to a Null-terminated ASCII string
array indicating the language. This is the
language of the driver name that the caller
is requesting, and it must match one of the
languages specified in SupportedLanguages.
The number of languages supported by a
driver is up to the driver writer. Language
is specified in RFC 3066 language code
format.
@param DriverName A pointer to the Unicode string to return.
This Unicode string is the name of the
driver specified by This in the language
specified by Language.
@retval EFI_SUCCESS The Unicode string for the
Driver specified by This and the
language specified by Language
was returned in DriverName.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER DriverName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This
does not support the language
specified by Language.
**/
EFI_STATUS
EFIAPI
DiskIoComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
)
{
return LookupUnicodeString (
Language,
gDiskIoComponentName.SupportedLanguages,
mDiskIoDriverNameTable,
DriverName
);
}
/**
Retrieves a Unicode string that is the user readable name of
the controller that is being managed by an EFI Driver.
@param This A pointer to the
EFI_COMPONENT_NAME_PROTOCOL instance.
@param ControllerHandle The handle of a controller that the
driver specified by This is managing.
This handle specifies the controller
whose name is to be returned.
@param ChildHandle The handle of the child controller to
retrieve the name of. This is an
optional parameter that may be NULL.
It will be NULL for device drivers.
It will also be NULL for a bus
drivers that wish to retrieve the
name of the bus controller. It will
not be NULL for a bus driver that
wishes to retrieve the name of a
child controller.
@param Language A pointer to a Null-terminated ASCII
string array indicating the language.
This is the language of the driver
name that the caller is requesting,
and it must match one of the
languages specified in
SupportedLanguages. The number of
languages supported by a driver is up
to the driver writer. Language is
specified in RFC 3066 language code
format.
@param ControllerName A pointer to the Unicode string to
return. This Unicode string is the
name of the controller specified by
ControllerHandle and ChildHandle in
the language specified by Language
from the point of view of the driver
specified by This.
@retval EFI_SUCCESS The Unicode string for the user
readable name in the language
specified by Language for the
driver specified by This was
returned in DriverName.
@retval EFI_INVALID_PARAMETER ControllerHandle is not a valid
EFI_HANDLE.
@retval EFI_INVALID_PARAMETER ChildHandle is not NULL and it
is not a valid EFI_HANDLE.
@retval EFI_INVALID_PARAMETER Language is NULL.
@retval EFI_INVALID_PARAMETER ControllerName is NULL.
@retval EFI_UNSUPPORTED The driver specified by This is
not currently managing the
controller specified by
ControllerHandle and
ChildHandle.
@retval EFI_UNSUPPORTED The driver specified by This
does not support the language
specified by Language.
**/
EFI_STATUS
EFIAPI
DiskIoComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
)
{
return EFI_UNSUPPORTED;
}

737
MdeModulePkg/Universal/Disk/DiskIoDxe/DiskIo.c Normal file
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/** @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;
}

124
MdeModulePkg/Universal/Disk/DiskIoDxe/DiskIo.h Normal file
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/** @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.
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.
**/
#ifndef _DISK_IO_H
#define _DISK_IO_H
#include <Uefi.h>
#include <Protocol/BlockIo.h>
#include <Protocol/ComponentName.h>
#include <Protocol/DriverBinding.h>
#include <Protocol/DiskIo.h>
#include <Library/DebugLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#define DISK_IO_PRIVATE_DATA_SIGNATURE EFI_SIGNATURE_32 ('d', 's', 'k', 'I')
#define DATA_BUFFER_BLOCK_NUM (64)
typedef struct {
UINTN Signature;
EFI_DISK_IO_PROTOCOL DiskIo;
EFI_BLOCK_IO_PROTOCOL *BlockIo;
} DISK_IO_PRIVATE_DATA;
#define DISK_IO_PRIVATE_DATA_FROM_THIS(a) CR (a, DISK_IO_PRIVATE_DATA, DiskIo, DISK_IO_PRIVATE_DATA_SIGNATURE)
//
// Global Variables
//
extern EFI_DRIVER_BINDING_PROTOCOL gDiskIoDriverBinding;
extern EFI_COMPONENT_NAME_PROTOCOL gDiskIoComponentName;
//
// 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 Component Name Functions
//
EFI_STATUS
EFIAPI
DiskIoComponentNameGetDriverName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN CHAR8 *Language,
OUT CHAR16 **DriverName
);
EFI_STATUS
EFIAPI
DiskIoComponentNameGetControllerName (
IN EFI_COMPONENT_NAME_PROTOCOL *This,
IN EFI_HANDLE ControllerHandle,
IN EFI_HANDLE ChildHandle OPTIONAL,
IN CHAR8 *Language,
OUT CHAR16 **ControllerName
);
#endif

91
MdeModulePkg/Universal/Disk/DiskIoDxe/DiskIoDxe.inf Normal file
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@@ -0,0 +1,91 @@
#/** @file
# Component description file for DiskIo module.
#
# 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.
#
#
#**/
################################################################################
#
# Defines Section - statements that will be processed to create a Makefile.
#
################################################################################
[Defines]
INF_VERSION = 0x00010005
BASE_NAME = DiskIoDxe
FILE_GUID = 6B38F7B4-AD98-40e9-9093-ACA2B5A253C4
MODULE_TYPE = UEFI_DRIVER
VERSION_STRING = 1.0
EDK_RELEASE_VERSION = 0x00020000
EFI_SPECIFICATION_VERSION = 0x00020000
ENTRY_POINT = InitializeDiskIo
#
# The following information is for reference only and not required by the build tools.
#
# VALID_ARCHITECTURES = IA32 X64 IPF EBC
#
# DRIVER_BINDING = gDiskIoDriverBinding
# COMPONENT_NAME = gDiskIoComponentName
#
################################################################################
#
# Sources Section - list of files that are required for the build to succeed.
#
################################################################################
[Sources.common]
ComponentName.c
DiskIo.h
DiskIo.c
################################################################################
#
# Package Dependency Section - list of Package files that are required for
# this module.
#
################################################################################
[Packages]
MdePkg/MdePkg.dec
################################################################################
#
# Library Class Section - list of Library Classes that are required for
# this module.
#
################################################################################
[LibraryClasses]
UefiBootServicesTableLib
MemoryAllocationLib
BaseMemoryLib
BaseLib
UefiLib
UefiDriverEntryPoint
DebugLib
################################################################################
#
# Protocol C Name Section - list of Protocol and Protocol Notify C Names
# that this module uses or produces.
#
################################################################################
[Protocols]
gEfiDiskIoProtocolGuid # PROTOCOL BY_START
gEfiBlockIoProtocolGuid # PROTOCOL TO_START

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MdeModulePkg/Universal/Disk/DiskIoDxe/DiskIoDxe.msa Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<ModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0">
<MsaHeader>
<ModuleName>DiskIoDxe</ModuleName>
<ModuleType>UEFI_DRIVER</ModuleType>
<GuidValue>6B38F7B4-AD98-40e9-9093-ACA2B5A253C4</GuidValue>
<Version>1.0</Version>
<Abstract>Component description file for DiskIo module.</Abstract>
<Description>DiskIo driver that layers it's self on every Block IO protocol in the system.</Description>
<Copyright>Copyright (c) 2006 - 2007, Intel Corporation</Copyright>
<License>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.</License>
<Specification>FRAMEWORK_BUILD_PACKAGING_SPECIFICATION 0x00000052</Specification>
</MsaHeader>
<ModuleDefinitions>
<SupportedArchitectures>IA32 X64 IPF EBC</SupportedArchitectures>
<BinaryModule>false</BinaryModule>
<OutputFileBasename>DiskIoDxe</OutputFileBasename>
</ModuleDefinitions>
<LibraryClassDefinitions>
<LibraryClass Usage="ALWAYS_CONSUMED" RecommendedInstanceGuid="bda39d3a-451b-4350-8266-81ab10fa0523">
<Keyword>DebugLib</Keyword>
<HelpText>Recommended libary Instance is PeiDxeDebugLibReportStatusCode instance in MdePkg.</HelpText>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>UefiDriverModelLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>UefiDriverEntryPoint</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>UefiLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>BaseLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>BaseMemoryLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>MemoryAllocationLib</Keyword>
</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">
<Keyword>UefiBootServicesTableLib</Keyword>
</LibraryClass>
</LibraryClassDefinitions>
<SourceFiles>
<FilenameDiskIo.c</Filename>
<Filename>DiskIo.h</Filename>
<Filename>ComponentName.c</Filename>
</SourceFiles>
<PackageDependencies>
<Package PackageGuid="5e0e9358-46b6-4ae2-8218-4ab8b9bbdcec"/>
</PackageDependencies>
<Protocols>
<Protocol Usage="TO_START">
<ProtocolCName>gEfiBlockIoProtocolGuid</ProtocolCName>
</Protocol>
<Protocol Usage="BY_START">
<ProtocolCName>gEfiDiskIoProtocolGuid</ProtocolCName>
</Protocol>
</Protocols>
<Externs>
<Specification>EFI_SPECIFICATION_VERSION 0x00020000</Specification>
<Specification>EDK_RELEASE_VERSION 0x00020000</Specification>
<Extern>
<DriverBinding>gDiskIoDriverBinding</DriverBinding>
<ComponentName>gDiskIoComponentName</ComponentName>
</Extern>
</Externs>
</ModuleSurfaceArea>