Untitled_Kernel/include/kio.h

/*  kio.h
 *  Kernel I/O
 *
 *  Responsible for kernel related in/output, such as VGA and serial
 */
#ifndef KIO_H
#define KIO_H
#define VGA_GRID_COLS 80
#define VGA_GRID_ROWS 25
#include <stdint.h>
#include <stdarg.h>

/*
 * CONSTANTS AND VARIABLES
 */

//Information on the VGA buffer

extern volatile uint16_t* const vga_buffer;

//grid is top left origin. This is our cursor!
extern int cursor_col;
extern int cursor_row;
extern uint16_t vga_attributes; // Black background, White foreground


/*
 * Functions
 */

//Clear the VGA buffer
void vga_clear();
//Put a character in the VGA buffer and move the cursor to the right by one
void vga_putc(char c);
void vga_set_attributes(uint8_t attributes);
void vga_print(const char* out);
void vga_println(const char* out);
void vga_printhex(uint32_t out);
void vga_prindec(uint32_t out);
void vga_printf(const char* fmt, ...);

#endif