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572f5d8a7b
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@5479 6f19259b-4bc3-4df7-8a09-765794883524
104 lines
3.9 KiB
C
104 lines
3.9 KiB
C
/** @file
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Device Path Driver to produce DevPathUtilities Protocol, DevPathFromText Protocol
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and DevPathToText Protocol.
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Copyright (c) 2006 - 2008, Intel Corporation. <BR>
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All rights reserved. This program and the accompanying materials
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are licensed and made available under the terms and conditions of the BSD License
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which accompanies this distribution. The full text of the license may be found at
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http://opensource.org/licenses/bsd-license.php
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THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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**/
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#include "DevicePath.h"
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EFI_HANDLE mDevicePathHandle = NULL;
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GLOBAL_REMOVE_IF_UNREFERENCED CONST EFI_DEVICE_PATH_UTILITIES_PROTOCOL mDevicePathUtilities = {
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GetDevicePathSizeProtocolInterface,
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DuplicateDevicePathProtocolInterface,
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AppendDevicePathProtocolInterface,
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AppendDeviceNodeProtocolInterface,
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AppendDevicePathInstanceProtocolInterface,
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GetNextDevicePathInstanceProtocolInterface,
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IsDevicePathMultiInstanceProtocolInterface,
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CreateDeviceNodeProtocolInterface
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};
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GLOBAL_REMOVE_IF_UNREFERENCED CONST EFI_DEVICE_PATH_TO_TEXT_PROTOCOL mDevicePathToText = {
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ConvertDeviceNodeToText,
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ConvertDevicePathToText
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};
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GLOBAL_REMOVE_IF_UNREFERENCED CONST EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL mDevicePathFromText = {
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ConvertTextToDeviceNode,
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ConvertTextToDevicePath
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};
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GLOBAL_REMOVE_IF_UNREFERENCED CONST EFI_GUID mEfiDevicePathMessagingUartFlowControlGuid = DEVICE_PATH_MESSAGING_UART_FLOW_CONTROL;
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GLOBAL_REMOVE_IF_UNREFERENCED CONST EFI_GUID mEfiDevicePathMessagingSASGuid = DEVICE_PATH_MESSAGING_SAS;
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/**
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The user Entry Point for DevicePath module.
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This is the entrhy point for DevicePath module. It installs the UEFI Device Path Utility Protocol and
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optionall the Device Path to Text and Device Path from Text protocols based on feature flags.
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@param[in] ImageHandle The firmware allocated handle for the EFI image.
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@param[in] SystemTable A pointer to the EFI System Table.
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@retval EFI_SUCCESS The entry point is executed successfully.
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@retval Others Some error occurs when executing this entry point.
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**/
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EFI_STATUS
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EFIAPI
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DevicePathEntryPoint (
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IN EFI_HANDLE ImageHandle,
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IN EFI_SYSTEM_TABLE *SystemTable
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)
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{
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EFI_STATUS Status;
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Status = EFI_UNSUPPORTED;
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if (FeaturePcdGet (PcdDevicePathSupportDevicePathToText)) {
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if (FeaturePcdGet (PcdDevicePathSupportDevicePathFromText)) {
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Status = gBS->InstallMultipleProtocolInterfaces (
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&mDevicePathHandle,
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&gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,
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&gEfiDevicePathToTextProtocolGuid, &mDevicePathToText,
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&gEfiDevicePathFromTextProtocolGuid, &mDevicePathFromText,
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NULL
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);
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} else {
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Status = gBS->InstallMultipleProtocolInterfaces (
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&mDevicePathHandle,
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&gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,
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&gEfiDevicePathToTextProtocolGuid, &mDevicePathToText,
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NULL
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);
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}
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} else {
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if (FeaturePcdGet (PcdDevicePathSupportDevicePathFromText)) {
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Status = gBS->InstallMultipleProtocolInterfaces (
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&mDevicePathHandle,
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&gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,
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&gEfiDevicePathFromTextProtocolGuid, &mDevicePathFromText,
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NULL
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);
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} else {
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Status = gBS->InstallMultipleProtocolInterfaces (
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&mDevicePathHandle,
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&gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,
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NULL
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);
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}
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}
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return Status;
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}
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