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Diffstat (limited to 'include/garmos/vga.h')
-rw-r--r-- | include/garmos/vga.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/include/garmos/vga.h b/include/garmos/vga.h new file mode 100644 index 0000000..f8b1a16 --- /dev/null +++ b/include/garmos/vga.h @@ -0,0 +1,40 @@ +/* + * Copyright (C) 2017 Robin Krahl <robin.krahl@ireas.org> + * + * 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 3 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 GARMOS_VGA_H +#define GARMOS_VGA_H + +#include <garmos/types.h> + +/* + * VGA text mode is only supported if ENABLE_VGA is defined, usually in the + * architecture's config.mk. For VGA_MEMORY, VGA_ROWS and VGA_COLS, sensible + * defaults are chosen. If these default values do not apply, the correct + * values should be set in the architecture's config.mk. + */ + +#ifndef VGA_ROWS +#define VGA_ROWS 20 +#endif + +#ifndef VGA_COLS +#define VGA_COLS 80 +#endif + +void vga_clear(void); +void vga_pclear(uint8_t attr); +void vga_print(uint32_t row, uint32_t col, uint8_t c); +void vga_pprint(uint32_t row, uint32_t col, uint8_t attr, uint8_t c); + +#endif |