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-rw-r--r--Core/MdeModulePkg/Universal/DevicePathDxe/DevicePath.c105
1 files changed, 105 insertions, 0 deletions
diff --git a/Core/MdeModulePkg/Universal/DevicePathDxe/DevicePath.c b/Core/MdeModulePkg/Universal/DevicePathDxe/DevicePath.c
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index 0000000000..70f03bd27a
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+++ b/Core/MdeModulePkg/Universal/DevicePathDxe/DevicePath.c
@@ -0,0 +1,105 @@
+/** @file
+ Device Path Driver to produce DevPathUtilities Protocol, DevPathFromText Protocol
+ and DevPathToText Protocol.
+
+Copyright (c) 2006 - 2013, Intel Corporation. All rights reserved.<BR>
+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 <Uefi.h>
+#include <Protocol/DevicePathUtilities.h>
+#include <Protocol/DevicePathToText.h>
+#include <Protocol/DevicePathFromText.h>
+#include <Library/UefiDriverEntryPoint.h>
+#include <Library/UefiBootServicesTableLib.h>
+#include <Library/DevicePathLib.h>
+#include <Library/PcdLib.h>
+
+GLOBAL_REMOVE_IF_UNREFERENCED CONST EFI_DEVICE_PATH_UTILITIES_PROTOCOL mDevicePathUtilities = {
+ GetDevicePathSize,
+ DuplicateDevicePath,
+ AppendDevicePath,
+ AppendDevicePathNode,
+ AppendDevicePathInstance,
+ GetNextDevicePathInstance,
+ IsDevicePathMultiInstance,
+ CreateDeviceNode
+};
+
+GLOBAL_REMOVE_IF_UNREFERENCED CONST EFI_DEVICE_PATH_TO_TEXT_PROTOCOL mDevicePathToText = {
+ ConvertDeviceNodeToText,
+ ConvertDevicePathToText
+};
+
+GLOBAL_REMOVE_IF_UNREFERENCED CONST EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL mDevicePathFromText = {
+ ConvertTextToDeviceNode,
+ ConvertTextToDevicePath
+};
+
+/**
+ The user Entry Point for DevicePath module.
+
+ This is the entry point for DevicePath module. It installs the UEFI Device Path Utility Protocol and
+ optionally the Device Path to Text and Device Path from Text protocols based on feature flags.
+
+ @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 Others Some error occurs when executing this entry point.
+
+**/
+EFI_STATUS
+EFIAPI
+DevicePathEntryPoint (
+ IN EFI_HANDLE ImageHandle,
+ IN EFI_SYSTEM_TABLE *SystemTable
+ )
+{
+ EFI_STATUS Status;
+ EFI_HANDLE Handle;
+
+ Handle = NULL;
+ Status = EFI_UNSUPPORTED;
+ if (FeaturePcdGet (PcdDevicePathSupportDevicePathToText)) {
+ if (FeaturePcdGet (PcdDevicePathSupportDevicePathFromText)) {
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Handle,
+ &gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,
+ &gEfiDevicePathToTextProtocolGuid, &mDevicePathToText,
+ &gEfiDevicePathFromTextProtocolGuid, &mDevicePathFromText,
+ NULL
+ );
+ } else {
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Handle,
+ &gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,
+ &gEfiDevicePathToTextProtocolGuid, &mDevicePathToText,
+ NULL
+ );
+ }
+ } else {
+ if (FeaturePcdGet (PcdDevicePathSupportDevicePathFromText)) {
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Handle,
+ &gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,
+ &gEfiDevicePathFromTextProtocolGuid, &mDevicePathFromText,
+ NULL
+ );
+ } else {
+ Status = gBS->InstallMultipleProtocolInterfaces (
+ &Handle,
+ &gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,
+ NULL
+ );
+ }
+ }
+ return Status;
+}