/*
 * Copyright (C)  2007-2009  Luc Verhaegen <libv@skynet.be>
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by the Free
 * Software Foundation; either version 2 of the License, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 51
 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef VGA_H
#define VGA_H

#define VGA_FB 0xB8000
#define VGA_FB_SIZE 0x4000 /* char + attr = word sized so 0x8000 / 2 */
#define VGA_COLUMNS 80
#define VGA_LINES 25

#if CONFIG_VGA

void vga_io_init(void);

void vga_textmode_init(void);

void vga_cursor_enable(int enable);
void vga_cursor_reset(void);
void vga_cursor_set(unsigned int line, unsigned int character);

void vga_frame_set(unsigned int line, unsigned int character);

void vga_line_write(unsigned int line, const char *string);

#endif /* CONFIG_VGA */

#endif /* VGA_H */
