46d95f3244
1. If the library instance is BasePrintLib, it has no prerequisite to produce EDK print protocol 2. If the library instance mapping is DxePrintLibPrint2Protocol, it acts as PrintOnPrint2Thunk. git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@7584 6f19259b-4bc3-4df7-8a09-765794883524
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/** @file
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Module produces EDK gEfiPrintProtocolGuid for backward compatibility support.
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EDK II retires old EDK Print Protocol and this module produces
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gEfiPrintProtocolGuid based on PrintLib:
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1) If it links against BasePrintLib in MdePkg, it produces gEfiPrintProtocolGuid
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without any prerequisites.
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2) If it links against DxePrintLibPrint2Protocol in MdeModulePkg, it produces
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gEfiPrintProtocolGuid on top of gEfiPrint2ProtocolGuid.
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Copyright (c) 2009, 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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**/
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#include <PiDxe.h>
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#include <Protocol/Print.h>
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#include <Library/PrintLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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#include <Library/DebugLib.h>
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EFI_HANDLE mPrintThunkHandle = NULL;
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CONST EFI_PRINT_PROTOCOL mPrintProtocol = {
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UnicodeVSPrint,
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};
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/**
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The user Entry Point for Print thunk module.
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This is the entry point for Print thunk DXE Driver. It installs the Print Protocol on
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top of PrintLib class in MdePkg.
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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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InitPrintThunk (
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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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Status = gBS->InstallMultipleProtocolInterfaces (
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&mPrintThunkHandle,
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&gEfiPrintProtocolGuid, &mPrintProtocol,
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NULL
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);
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ASSERT_EFI_ERROR (Status);
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return Status;
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}
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