/*
 * 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, &currentMode, 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;
}
