62 lines
1.3 KiB
C
62 lines
1.3 KiB
C
/**************************************
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* iceOS Kernel *
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* Developed by Marco 'icebit' Cetica *
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* (c) 2019 *
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* Released under GPLv3 *
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* https://github.com/ice-bit/iceOS *
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***************************************/
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#ifndef _TTY_H_
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#define _TTY_H_
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#include <stdint.h>
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// TODO: write something about Frame Buffer
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// VGA colors
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enum TTY_COLORS {
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BLACK, // 0
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BLUE,
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GREEN,
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CYAN,
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RED,
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MAGENTA,
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BROWN,
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LIGHT_GREY,
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DARK_GREY,
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LIGHT_BLUE,
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LIGHT_GREEN,
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LIGHT_CYAN,
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LIGHT_RED,
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LIGHT_MAGENTA,
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LIGHT_BROWN,
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WHITE // 15
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};
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/* Framebuffer properties */
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#define VIDEO_MEM_ADDR 0x000B8000 // frame buffer address
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#define VGA_WIDTH 80
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#define VGA_HEIGHT 25
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/* VGA I/O ports */
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#define VGA_CMD_PORT 0x3D4
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#define VGA_DATA_PORT 0x3D5
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/* VGA I/O ports commands */
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#define VGA_HIGH_BYTE 14
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#define VGA_LOW_BYTE 15
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/* Kernel's VGA API */
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void write_cell(int16_t i, uint8_t c, uint8_t fg, uint8_t bg);
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void move_cursor(uint16_t pos);
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void cursor_adv();
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void backspace();
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void kprint_c(uint8_t *buf, uint32_t len, uint8_t fg, uint8_t bg);
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void kprint(uint8_t *buf);
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void init_prompt();
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void clear_prompt();
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void clear_row(uint8_t row);
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void scroll(); // Scroll one row
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void newline();
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#endif |