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git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@3 6f19259b-4bc3-4df7-8a09-765794883524
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bbahnsen
2006-04-21 22:54:32 +00:00
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274
MdePkg/Library/UefiDevicePathLibDevicePathProtocol/UefiDevicePathLib.c Normal file
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/** @file
UEFI Device Path Library.
Copyright (c) 2006, Intel Corporation<BR>
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: UefiDevicePathLib.c
**/
STATIC EFI_DEVICE_PATH_UTILITIES_PROTOCOL *mDevicePathUtilities = NULL;
/**
The constructor function caches the pointer to DevicePathUtilites protocol.
The constructor function locates DevicePathUtilities protocol from protocol database.
It will ASSERT() if that operation fails and it will always return EFI_SUCCESS.
@param ImageHandle The firmware allocated handle for the EFI image.
@param SystemTable A pointer to the EFI System Table.
@retval EFI_SUCCESS The constructor always returns EFI_SUCCESS.
**/
EFI_STATUS
EFIAPI
DevicePathLibConstructor (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
{
EFI_STATUS Status;
Status = gBS->LocateProtocol (
&gEfiDevicePathUtilitiesProtocolGuid,
NULL,
(VOID**) &mDevicePathUtilities
);
ASSERT_EFI_ERROR (Status);
ASSERT (mDevicePathUtilities != NULL);
return Status;
}
/**
This function returns the size, in bytes,
of the device path data structure specified by DevicePath.
If DevicePath is NULL, then 0 is returned.
@param DevicePath A pointer to a device path data structure.
@return The size of a device path in bytes.
**/
UINTN
EFIAPI
GetDevicePathSize (
IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
)
{
return mDevicePathUtilities->GetDevicePathSize (DevicePath);
}
/**
This function allocates space for a new copy of the device path
specified by DevicePath.
@param DevicePath A pointer to a device path data structure.
@return The duplicated device path.
**/
EFI_DEVICE_PATH_PROTOCOL *
EFIAPI
DuplicateDevicePath (
IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
)
{
return mDevicePathUtilities->DuplicateDevicePath (DevicePath);
}
/**
This function appends the device path SecondDevicePath
to every device path instance in FirstDevicePath.
@param FirstDevicePath A pointer to a device path data structure.
@param SecondDevicePath A pointer to a device path data structure.
@return A pointer to the new device path is returned.
NULL is returned if space for the new device path could not be allocated from pool.
It is up to the caller to free the memory used by FirstDevicePath and SecondDevicePath
if they are no longer needed.
**/
EFI_DEVICE_PATH_PROTOCOL *
EFIAPI
AppendDevicePath (
IN CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath,
IN CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath
)
{
return mDevicePathUtilities->AppendDevicePath (FirstDevicePath, SecondDevicePath);
}
/**
This function appends the device path node SecondDevicePath
to every device path instance in FirstDevicePath.
@param FirstDevicePath A pointer to a device path data structure.
@param SecondDevicePath A pointer to a single device path node.
@return A pointer to the new device path.
If there is not enough temporary pool memory available to complete this function,
then NULL is returned.
**/
EFI_DEVICE_PATH_PROTOCOL *
EFIAPI
AppendDevicePathNode (
IN CONST EFI_DEVICE_PATH_PROTOCOL *FirstDevicePath,
IN CONST EFI_DEVICE_PATH_PROTOCOL *SecondDevicePath
)
{
return mDevicePathUtilities->AppendDeviceNode (FirstDevicePath, SecondDevicePath);
}
/**
This function appends the device path instance Instance to the device path Source.
If Source is NULL, then a new device path with one instance is created.
@param Source A pointer to a device path data structure.
@param Instance A pointer to a device path instance.
@return A pointer to the new device path.
If there is not enough temporary pool memory available to complete this function,
then NULL is returned.
**/
EFI_DEVICE_PATH_PROTOCOL *
EFIAPI
AppendDevicePathInstance (
IN CONST EFI_DEVICE_PATH_PROTOCOL *Source,
IN CONST EFI_DEVICE_PATH_PROTOCOL *Instance
)
{
return mDevicePathUtilities->AppendDevicePathInstance (Source, Instance);
}
/**
Function retrieves the next device path instance from a device path data structure.
@param DevicePath A pointer to a device path data structure.
@param Size A pointer to the size of a device path instance in bytes.
@return This function returns a pointer to the current device path instance.
In addition, it returns the size in bytes of the current device path instance in Size,
and a pointer to the next device path instance in DevicePath.
If there are no more device path instances in DevicePath, then DevicePath will be set to NULL.
**/
EFI_DEVICE_PATH_PROTOCOL *
EFIAPI
GetNextDevicePathInstance (
IN OUT EFI_DEVICE_PATH_PROTOCOL **DevicePath,
OUT UINTN *Size
)
{
ASSERT (DevicePath != NULL);
ASSERT (Size != NULL);
return mDevicePathUtilities->GetNextDevicePathInstance (DevicePath, Size);
}
/**
Return TRUE is this is a multi instance device path.
@param DevicePath A pointer to a device path data structure.
@retval TRUE If DevicePath is multi-instance.
@retval FALSE If DevicePath is not multi-instance or DevicePath is NULL.
**/
BOOLEAN
EFIAPI
IsDevicePathMultiInstance (
IN CONST EFI_DEVICE_PATH_PROTOCOL *DevicePath
)
{
return mDevicePathUtilities->IsDevicePathMultiInstance (DevicePath);
}
/**
This function retrieves the device path protocol from a handle.
@param Handle The handle from which to retrieve the device path protocol.
@return This function returns the device path protocol from the handle specified by Handle.
If Handle is NULL or Handle does not contain a device path protocol, then NULL is returned.
**/
EFI_DEVICE_PATH_PROTOCOL *
EFIAPI
DevicePathFromHandle (
IN EFI_HANDLE Handle
)
{
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_STATUS Status;
Status = gBS->HandleProtocol (
Handle,
&gEfiDevicePathProtocolGuid,
(VOID *) &DevicePath
);
if (EFI_ERROR (Status)) {
DevicePath = NULL;
}
return DevicePath;
}
/**
This function allocates a device path for a file and appends it to an existing device path.
@param Device A pointer to a device handle. This parameter is optional and may be NULL.
@param FileName A pointer to a Null-terminated Unicode string.
@return If Device is a valid device handle that contains a device path protocol,
then a device path for the file specified by FileName is allocated
and appended to the device path associated with the handle Device. The allocated device path is returned.
If Device is NULL or Device is a handle that does not support the device path protocol,
then a device path containing a single device path node for the file specified by FileName
is allocated and returned.
**/
EFI_DEVICE_PATH_PROTOCOL *
EFIAPI
FileDevicePath (
IN EFI_HANDLE Device, OPTIONAL
IN CONST CHAR16 *FileName
)
{
UINTN Size;
FILEPATH_DEVICE_PATH *FilePath;
EFI_DEVICE_PATH_PROTOCOL *DevicePath;
EFI_DEVICE_PATH_PROTOCOL *FileDevicePathNode;
DevicePath = NULL;
Size = StrSize (FileName);
FileDevicePathNode = mDevicePathUtilities->CreateDeviceNode (
MEDIA_DEVICE_PATH,
MEDIA_FILEPATH_DP,
(UINT16) (Size + SIZE_OF_FILEPATH_DEVICE_PATH)
);
if (FileDevicePathNode != NULL) {
FilePath = (FILEPATH_DEVICE_PATH *) FileDevicePathNode;
CopyMem (&FilePath->PathName, FileName, Size);
if (Device != NULL) {
DevicePath = DevicePathFromHandle (Device);
}
DevicePath = AppendDevicePathNode (DevicePath, FileDevicePathNode);
FreePool (FileDevicePathNode);
}
return DevicePath;
}

29
MdePkg/Library/UefiDevicePathLibDevicePathProtocol/UefiDevicePathLibDevicePathProtocol.mbd Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!--
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.
-->
<LibraryModuleBuildDescription xmlns="http://www.TianoCore.org/2006/Edk2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.TianoCore.org/2006/Edk2.0 http://www.TianoCore.org/2006/Edk2.0/SurfaceArea.xsd">
<MbdLibHeader>
<BaseName>UefiDevicePathLibDevicePathProtocol</BaseName>
<Guid>050EB8C6-C12E-4b86-892B-40985E8B3137</Guid>
<Version>EDK_RELEASE_VERSION 0x00020000</Version>
<Description>FIX ME!</Description>
<Copyright>Copyright (c) 2006, 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>
<Created>2006-03-30 10:05</Created>
</MbdLibHeader>
</LibraryModuleBuildDescription>

55
MdePkg/Library/UefiDevicePathLibDevicePathProtocol/UefiDevicePathLibDevicePathProtocol.msa Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!--
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.
-->
<LibraryModuleSurfaceArea xmlns="http://www.TianoCore.org/2006/Edk2.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.TianoCore.org/2006/Edk2.0 http://www.TianoCore.org/2006/Edk2.0/SurfaceArea.xsd">
<MsaLibHeader>
<BaseName>UefiDevicePathLibDevicePathProtocol</BaseName>
<ModuleType>UEFI_DRIVER</ModuleType>
<ComponentType>LIBRARY</ComponentType>
<Guid>050EB8C6-C12E-4b86-892B-40985E8B3137</Guid>
<Version>EDK_RELEASE_VERSION 0x00020000</Version>
<Abstract>Device Path Library</Abstract>
<Description>FIX ME!</Description>
<Copyright>Copyright (c) 2006, 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>EFI_SPECIFICATION_VERSION 0x00000000</Specification>
<Created>2006-03-30 10:05</Created>
</MsaLibHeader>
<LibraryClassDefinitions>
<LibraryClass Usage="ALWAYS_PRODUCED">DevicePathLib</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">DebugLib</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">BaseLib</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">MemoryAllocationLib</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">BaseMemoryLib</LibraryClass>
<LibraryClass Usage="ALWAYS_CONSUMED">UefiBootServicesTableLib</LibraryClass>
</LibraryClassDefinitions>
<SourceFiles>
<Filename>UefiDevicePathLib.c</Filename>
</SourceFiles>
<Includes>
<PackageName>MdePkg</PackageName>
</Includes>
<Protocols>
<Protocol Usage="ALWAYS_CONSUMED">DevicePathUtilities</Protocol>
</Protocols>
<Externs>
<Extern>
<Constructor>DevicePathLibConstructor</Constructor>
</Extern>
</Externs>
</LibraryModuleSurfaceArea>

47
MdePkg/Library/UefiDevicePathLibDevicePathProtocol/build.xml Normal file
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<?xml version="1.0" encoding="UTF-8"?><!-- 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.-->
<project basedir="." default="UefiDevicePathLibDevicePathProtocol"><!--Apply external ANT tasks-->
<taskdef resource="GenBuild.tasks"/>
<taskdef resource="net/sf/antcontrib/antlib.xml"/>
<property environment="env"/>
<property name="WORKSPACE_DIR" value="${env.WORKSPACE}"/>
<import file="${WORKSPACE_DIR}\Tools\Conf\BuildMacro.xml"/><!--MODULE_RELATIVE PATH is relative to PACKAGE_DIR-->
<property name="MODULE_RELATIVE_PATH" value="Library\UefiDevicePathLibDevicePathProtocol"/>
<property name="MODULE_DIR" value="${PACKAGE_DIR}\${MODULE_RELATIVE_PATH}"/>
<property name="COMMON_FILE" value="${WORKSPACE_DIR}\Tools\Conf\Common.xml"/>
<target name="UefiDevicePathLibDevicePathProtocol">
<GenBuild baseName="UefiDevicePathLibDevicePathProtocol" mbdFilename="${MODULE_DIR}\UefiDevicePathLibDevicePathProtocol.mbd" msaFilename="${MODULE_DIR}\UefiDevicePathLibDevicePathProtocol.msa"/>
</target>
<target depends="UefiDevicePathLibDevicePathProtocol_clean" name="clean"/>
<target depends="UefiDevicePathLibDevicePathProtocol_cleanall" name="cleanall"/>
<target name="UefiDevicePathLibDevicePathProtocol_clean">
<OutputDirSetup baseName="UefiDevicePathLibDevicePathProtocol" mbdFilename="${MODULE_DIR}\UefiDevicePathLibDevicePathProtocol.mbd" msaFilename="${MODULE_DIR}\UefiDevicePathLibDevicePathProtocol.msa"/>
<if>
<available file="${DEST_DIR_OUTPUT}\UefiDevicePathLibDevicePathProtocol_build.xml"/>
<then>
<ant antfile="${DEST_DIR_OUTPUT}\UefiDevicePathLibDevicePathProtocol_build.xml" target="clean"/>
</then>
</if>
<delete dir="${DEST_DIR_OUTPUT}" excludes="*.xml"/>
</target>
<target name="UefiDevicePathLibDevicePathProtocol_cleanall">
<OutputDirSetup baseName="UefiDevicePathLibDevicePathProtocol" mbdFilename="${MODULE_DIR}\UefiDevicePathLibDevicePathProtocol.mbd" msaFilename="${MODULE_DIR}\UefiDevicePathLibDevicePathProtocol.msa"/>
<if>
<available file="${DEST_DIR_OUTPUT}\UefiDevicePathLibDevicePathProtocol_build.xml"/>
<then>
<ant antfile="${DEST_DIR_OUTPUT}\UefiDevicePathLibDevicePathProtocol_build.xml" target="cleanall"/>
</then>
</if>
<delete dir="${DEST_DIR_OUTPUT}"/>
<delete dir="${DEST_DIR_DEBUG}"/>
<delete>
<fileset dir="${BIN_DIR}" includes="**UefiDevicePathLibDevicePathProtocol*"/>
</delete>
</target>
</project>