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/*
* TextMode/TextMode.c
* Command to switch the console to text mode
*
* Copyright (c) 2006 Christoph Pfisterer
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the
* distribution.
*
* * Neither the name of Christoph Pfisterer nor the names of the
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "efi.h"
#include "efiConsoleControl.h"
EFI_GUID gEfiConsoleControlProtocolGuid = EFI_CONSOLE_CONTROL_PROTOCOL_GUID;
EFI_STATUS
EFIAPI
TextModeMain (IN EFI_HANDLE ImageHandle,
IN EFI_SYSTEM_TABLE *SystemTable)
{
EFI_CONSOLE_CONTROL_PROTOCOL *ConsoleControl;
int changed = 0;
if (SystemTable->BootServices->LocateProtocol(&gEfiConsoleControlProtocolGuid, NULL, &ConsoleControl) == EFI_SUCCESS) {
EFI_CONSOLE_CONTROL_SCREEN_MODE currentMode;
ConsoleControl->GetMode(ConsoleControl, ¤tMode, NULL, NULL);
if (currentMode == EfiConsoleControlScreenGraphics) {
ConsoleControl->SetMode(ConsoleControl, EfiConsoleControlScreenText);
changed = 1;
}
}
if (changed) {
SystemTable->ConOut->OutputString(SystemTable->ConOut, L"Welcome to text mode!\r\n\r\n");
}
return EFI_SUCCESS;
}
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