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[mirror_edk2.git] / MdeModulePkg / Universal / DevicePathDxe / DevicePath.c

/** @file\r
  Device Path Driver to produce DevPathUtilities Protocol, DevPathFromText Protocol\r
  and DevPathToText Protocol.\r
\r
Copyright (c) 2006 - 2008, Intel Corporation. <BR>\r
All rights reserved. This program and the accompanying materials\r
are licensed and made available under the terms and conditions of the BSD License\r
which accompanies this distribution.  The full text of the license may be found at\r
http://opensource.org/licenses/bsd-license.php\r
\r
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include "DevicePath.h"\r
\r
EFI_HANDLE  mDevicePathHandle = NULL;\r
\r
GLOBAL_REMOVE_IF_UNREFERENCED const EFI_DEVICE_PATH_UTILITIES_PROTOCOL mDevicePathUtilities = {\r
  GetDevicePathSizeProtocolInterface,\r
  DuplicateDevicePathProtocolInterface,\r
  AppendDevicePathProtocolInterface,\r
  AppendDeviceNodeProtocolInterface,\r
  AppendDevicePathInstanceProtocolInterface,\r
  GetNextDevicePathInstanceProtocolInterface,\r
  IsDevicePathMultiInstanceProtocolInterface,\r
  CreateDeviceNodeProtocolInterface\r
};\r
\r
GLOBAL_REMOVE_IF_UNREFERENCED const EFI_DEVICE_PATH_TO_TEXT_PROTOCOL   mDevicePathToText = {\r
  ConvertDeviceNodeToText,\r
  ConvertDevicePathToText\r
};\r
\r
GLOBAL_REMOVE_IF_UNREFERENCED const EFI_DEVICE_PATH_FROM_TEXT_PROTOCOL mDevicePathFromText = {\r
  ConvertTextToDeviceNode,  \r
  ConvertTextToDevicePath  \r
};\r
\r
GLOBAL_REMOVE_IF_UNREFERENCED const EFI_GUID mEfiDevicePathMessagingUartFlowControlGuid = DEVICE_PATH_MESSAGING_UART_FLOW_CONTROL;\r
GLOBAL_REMOVE_IF_UNREFERENCED const EFI_GUID mEfiDevicePathMessagingSASGuid             = DEVICE_PATH_MESSAGING_SAS;\r
\r
EFI_STATUS\r
EFIAPI\r
DevicePathEntryPoint (\r
  IN EFI_HANDLE           ImageHandle,\r
  IN EFI_SYSTEM_TABLE     *SystemTable\r
  )\r
/*++\r
\r
  Routine Description:\r
    Entry point for EFI drivers.\r
\r
  Arguments:\r
   ImageHandle - EFI_HANDLE\r
   SystemTable - EFI_SYSTEM_TABLE\r
\r
  Returns:\r
    EFI_SUCCESS\r
    others\r
\r
--*/\r
{\r
  EFI_STATUS  Status;\r
 \r
  Status = EFI_UNSUPPORTED;\r
  if (FeaturePcdGet (PcdDevicePathSupportDevicePathToText)) {\r
    if (FeaturePcdGet (PcdDevicePathSupportDevicePathFromText)) {\r
      Status = gBS->InstallMultipleProtocolInterfaces (\r
                      &mDevicePathHandle,\r
                      &gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,\r
                      &gEfiDevicePathToTextProtocolGuid,    &mDevicePathToText,\r
                      &gEfiDevicePathFromTextProtocolGuid,  &mDevicePathFromText,\r
                      NULL\r
                      );\r
    } else {\r
      Status = gBS->InstallMultipleProtocolInterfaces (\r
                      &mDevicePathHandle,\r
                      &gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,\r
                      &gEfiDevicePathToTextProtocolGuid,    &mDevicePathToText,\r
                      NULL\r
                      );\r
    }\r
  } else {\r
    if (FeaturePcdGet (PcdDevicePathSupportDevicePathFromText)) {\r
      Status = gBS->InstallMultipleProtocolInterfaces (\r
                      &mDevicePathHandle,\r
                      &gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,\r
                      &gEfiDevicePathFromTextProtocolGuid,  &mDevicePathFromText,\r
                      NULL\r
                      );\r
    } else {\r
      Status = gBS->InstallMultipleProtocolInterfaces (\r
                      &mDevicePathHandle,\r
                      &gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,\r
                      NULL\r
                      );\r
    }\r
  }\r
  return Status;\r
}\r