1  #ifndef KEYBOARD_H
 2  #define KEYBOARD_H
 3  
 4  #include "types.h"
 5  #include "idt.h"
 6  
 7  // Keyboard scan codes (Set 1)
 8  #define KEY_ESC         0x01
 9  #define KEY_1           0x02
10  #define KEY_2           0x03
11  #define KEY_3           0x04
12  #define KEY_4           0x05
13  #define KEY_5           0x06
14  #define KEY_6           0x07
15  #define KEY_7           0x08
16  #define KEY_8           0x09
17  #define KEY_9           0x0A
18  #define KEY_0           0x0B
19  #define KEY_MINUS       0x0C
20  #define KEY_EQUALS      0x0D
21  #define KEY_BACKSPACE   0x0E
22  #define KEY_TAB         0x0F
23  #define KEY_Q           0x10
24  #define KEY_ENTER       0x1C
25  #define KEY_LCTRL       0x1D
26  #define KEY_A           0x1E
27  #define KEY_LSHIFT      0x2A
28  #define KEY_RSHIFT      0x36
29  #define KEY_LALT        0x38
30  #define KEY_SPACE       0x39
31  #define KEY_CAPSLOCK    0x3A
32  #define KEY_F1          0x3B
33  #define KEY_UP          0x48
34  #define KEY_LEFT        0x4B
35  #define KEY_RIGHT       0x4D
36  #define KEY_DOWN        0x50
37  
38  // Key states
39  #define KEY_STATE_SHIFT   (1 << 0)
40  #define KEY_STATE_CTRL    (1 << 1)
41  #define KEY_STATE_ALT     (1 << 2)
42  #define KEY_STATE_CAPS    (1 << 3)
43  
44  // Keyboard buffer
45  #define KEYBOARD_BUFFER_SIZE 256
46  
47  // Keyboard functions
48  void keyboard_init(void);
49  void keyboard_handler(void);
50  char keyboard_getchar(void);
51  int keyboard_haschar(void);
52  void keyboard_set_leds(uint8_t leds);
53  
54  // Keyboard callback
55  typedef void (*keyboard_callback_t)(char ch);
56  void keyboard_set_callback(keyboard_callback_t callback);
57  
58  #endif // KEYBOARD_H