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100 lines
3.4 KiB
C
100 lines
3.4 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 - 2013, Intel Corporation. All rights reserved.<BR>
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SPDX-License-Identifier: BSD-2-Clause-Patent
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**/
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#include <Uefi.h>
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#include <Protocol/DevicePathUtilities.h>
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#include <Protocol/DevicePathToText.h>
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#include <Protocol/DevicePathFromText.h>
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/DevicePathLib.h>
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#include <Library/PcdLib.h>
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GLOBAL_REMOVE_IF_UNREFERENCED CONST EFI_DEVICE_PATH_UTILITIES_PROTOCOL mDevicePathUtilities = {
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GetDevicePathSize,
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DuplicateDevicePath,
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AppendDevicePath,
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AppendDevicePathNode,
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AppendDevicePathInstance,
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GetNextDevicePathInstance,
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IsDevicePathMultiInstance,
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CreateDeviceNode
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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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/**
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The user Entry Point for DevicePath module.
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This is the entry point for DevicePath module. It installs the UEFI Device Path Utility Protocol and
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optionally 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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EFI_HANDLE Handle;
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Handle = NULL;
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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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&Handle,
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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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&Handle,
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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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&Handle,
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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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&Handle,
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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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