blob: ea47368936b9037483e3b9a89cea0c47812af994 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
|
/* This file is part of the coreboot project. */
/*
*
* 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.
*/
#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
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 /* VGA_H */
|
