mirror of https://github.com/acidanthera/audk.git
106 lines
3.1 KiB
C
106 lines
3.1 KiB
C
/**@file
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Copyright (c) 2006, Intel Corporation
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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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Module Name:
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WinNtThunk.c
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Abstract:
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Produce WinNtThunk protocol and it's associated device path and controller
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state protocols. WinNtThunk is to the NT emulation environment as
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PCI_ROOT_BRIGE is to real hardware. The WinNtBusDriver is the child of this
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driver.
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Since we are a root hardware abstraction we do not install a Driver Binding
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protocol on this handle. This driver can only support one one WinNtThunk protocol
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in the system, since the device path is hard coded.
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**/
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//
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// The package level header files this module uses
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//
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#include <Uefi.h>
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#include <WinNtDxe.h>
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//
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// The protocols, PPI and GUID defintions for this module
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//
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#include <Protocol/WinNtThunk.h>
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#include <Protocol/DevicePath.h>
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//
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// The Library classes this module consumes
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//
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#include <Library/UefiDriverEntryPoint.h>
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#include <Library/WinNtLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/DevicePathLib.h>
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#include "WinNtThunk.h"
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//
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// WinNtThunk Device Path Protocol Instance
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//
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WIN_NT_THUNK_DEVICE_PATH mWinNtThunkDevicePath = {
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{
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HARDWARE_DEVICE_PATH,
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HW_VENDOR_DP,
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(UINT8) (sizeof (VENDOR_DEVICE_PATH)),
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(UINT8) ((sizeof (VENDOR_DEVICE_PATH)) >> 8),
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EFI_WIN_NT_THUNK_PROTOCOL_GUID,
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},
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{
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END_DEVICE_PATH_TYPE,
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END_ENTIRE_DEVICE_PATH_SUBTYPE,
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END_DEVICE_PATH_LENGTH,
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0
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}
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};
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EFI_STATUS
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EFIAPI
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InitializeWinNtThunk (
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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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Routine Description:
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Install WinNtThunk Protocol and it's associated Device Path protocol
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Arguments:
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(Standard EFI Image entry - EFI_IMAGE_ENTRY_POINT)
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Returns:
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EFI_SUCEESS - WinNtThunk protocol is added or error status from
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gBS->InstallMultiProtocolInterfaces().
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--*/
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// TODO: ImageHandle - add argument and description to function comment
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// TODO: SystemTable - add argument and description to function comment
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{
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EFI_STATUS Status;
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EFI_HANDLE ControllerHandle;
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ControllerHandle = NULL;
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Status = gBS->InstallMultipleProtocolInterfaces (
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&ControllerHandle,
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&gEfiWinNtThunkProtocolGuid,
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gWinNt,
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&gEfiDevicePathProtocolGuid,
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&mWinNtThunkDevicePath,
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NULL
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);
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return Status;
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}
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