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59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/** @file
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Copyright (C) 2019, Download-Fritz. All rights reserved.
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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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**/
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#include <Uefi.h>
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#include <Protocol/ConsoleControl.h>
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#include <Library/PcdLib.h>
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#include <Library/UefiBootServicesTableLib.h>
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EFI_STATUS
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EFIAPI
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OcConsoleControlEntryModeConstructor (
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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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EFI_CONSOLE_CONTROL_PROTOCOL *ConsoleControl;
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if (FixedPcdGet8 (PcdConsoleControlEntryMode) < EfiConsoleControlScreenMaxValue) {
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//
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// On several types of firmware, we need to use legacy console control protocol to
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// switch to text mode, otherwise a black screen will be shown.
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//
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Status = gBS->HandleProtocol (
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gST->ConsoleOutHandle,
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&gEfiConsoleControlProtocolGuid,
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(VOID **)&ConsoleControl
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);
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if (EFI_ERROR (Status)) {
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Status = gBS->LocateProtocol (
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&gEfiConsoleControlProtocolGuid,
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NULL,
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(VOID **)&ConsoleControl
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);
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}
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if (!EFI_ERROR (Status)) {
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ConsoleControl->SetMode (
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ConsoleControl,
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FixedPcdGet8 (PcdConsoleControlEntryMode)
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);
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}
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}
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return EFI_SUCCESS;
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}
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