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#ifndef VT52_H
#define VT52_H
#include <stdint.h>
//
// Emulator of a vt52 terminal
//
// 1. pass a term_out and term_in struct to vt52_init(..).
// 2. use the vt52_kb function for terminal/user input (eg. keyboard).
// 3. use the vt52_put function for input from the host/programms.
//
//
//
// ________
// vt52_put() ------> | | ----> (term_out_struct)
// | VT52 |
// (term_in_struct)<-- |_______| <---- vt52_kb()
//
//
// OTHER REQUIREMENTS
//
// Your also need to provide some memory allocation
//
// * uint32_t kballoc(uint32_t bloks); // block wise in-kernel allocation
//
typedef struct term_out_struct
{
void (*put_char)(uint8_t c,uint8_t color, uint32_t x, uint32_t y);
void (*update_cursor)(uint32_t col,uint32_t row);
}term_out;
typedef struct term_in_struct
{
void (*put_char)(uint8_t c);
}term_in;
typedef struct vt52_tty_struct
{
uint32_t width;
uint32_t height;
uint32_t x;
uint32_t y;
uint32_t *data; // screen data
term_out *screen;
term_in *input;
}vt52_tty;
vt52_tty vt52_init(term_out *screen,term_in *input);
void vt52_put(vt52_tty *tty, uint8_t c);
void vt52_kb(vt52_tty *tty, uint8_t c);
#endif
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