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/*++
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.
Module Name:
DevicePathDriver.c
Abstract:
Device Path Driver to produce DevPathUtilities Protocol, DevPathFromText Protocol
and DevPathToText Protocol.
--*/
#include "DevicePath.h"
EFI_HANDLE mDevicePathHandle = NULL;
GLOBAL_REMOVE_IF_UNREFERENCED const EFI_DEVICE_PATH_UTILITIES_PROTOCOL mDevicePathUtilities = {
GetDevicePathSizeProtocolInterface,
DuplicateDevicePathProtocolInterface,
AppendDevicePathProtocolInterface,
AppendDeviceNodeProtocolInterface,
AppendDevicePathInstanceProtocolInterface,
GetNextDevicePathInstanceProtocolInterface,
IsDevicePathMultiInstanceProtocolInterface,
CreateDeviceNodeProtocolInterface
};
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
};
GLOBAL_REMOVE_IF_UNREFERENCED const EFI_GUID mEfiDevicePathMessagingUartFlowControlGuid = DEVICE_PATH_MESSAGING_UART_FLOW_CONTROL;
GLOBAL_REMOVE_IF_UNREFERENCED const EFI_GUID mEfiDevicePathMessagingSASGuid = DEVICE_PATH_MESSAGING_SAS;
EFI_STATUS
EFIAPI
DevicePathEntryPoint (
IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable
)
/*++
Routine Description:
Entry point for EFI drivers.
Arguments:
ImageHandle - EFI_HANDLE
SystemTable - EFI_SYSTEM_TABLE
Returns:
EFI_SUCCESS
others
--*/
{
EFI_STATUS Status;
Status = EFI_UNSUPPORTED;
if (FeaturePcdGet (PcdDevicePathSupportDevicePathToText)) {
if (FeaturePcdGet (PcdDevicePathSupportDevicePathFromText)) {
Status = gBS->InstallMultipleProtocolInterfaces (
&mDevicePathHandle,
&gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,
&gEfiDevicePathToTextProtocolGuid, &mDevicePathToText,
&gEfiDevicePathFromTextProtocolGuid, &mDevicePathFromText,
NULL
);
} else {
Status = gBS->InstallMultipleProtocolInterfaces (
&mDevicePathHandle,
&gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,
&gEfiDevicePathToTextProtocolGuid, &mDevicePathToText,
NULL
);
}
} else {
if (FeaturePcdGet (PcdDevicePathSupportDevicePathFromText)) {
Status = gBS->InstallMultipleProtocolInterfaces (
&mDevicePathHandle,
&gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,
&gEfiDevicePathFromTextProtocolGuid, &mDevicePathFromText,
NULL
);
} else {
Status = gBS->InstallMultipleProtocolInterfaces (
&mDevicePathHandle,
&gEfiDevicePathUtilitiesProtocolGuid, &mDevicePathUtilities,
NULL
);
}
}
return Status;
}
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