metalsvm/arch/x86/include/asm/vga.h

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/*
* Copyright 2010 Stefan Lankes, Chair for Operating Systems,
* RWTH Aachen University
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* This file is part of MetalSVM.
*/
/**
* @author Stefan Lankes
* @file arch/x86/include/asm/vga.h
* @brief VGA output related code
*/
#ifndef __ARCH_VGA_H__
#define __ARCH_VGA_H__
#include <metalsvm/stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifdef CONFIG_VGA
/** @brief Initialize VGA output and clear the screen */
void vga_init(void);
/** @brief Simple string output on screen.
*
* If you want a new line you will have to "\\n".
*
* @return Length of output in bytes
*/
int vga_puts(const char *text);
/** @brief Simple character output on screen.
*
* @return The original input character casted to int
*/
int vga_putchar(unsigned char c);
/** @brief Clear the screen */
void vga_cls(void);
#endif
#ifdef __cplusplus
}
#endif
#endif