1 /*

2 DOS interrupt-based keyboard driver.

3 Copyright (C) 2013 John Tsiombikas <nuclear@member.fsf.org>

4

5 This program is free software: you can redistribute it and/or modify

6 it under the terms of the GNU General Public License as published by

7 the Free Software Foundation, either version 3 of the License, or

8 (at your option) any later version.

9

10 This program is distributed in the hope that it will be useful,

11 but WITHOUT ANY WARRANTY; without even the implied warranty of

12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

13 GNU General Public License for more details.

14

15 You should have received a copy of the GNU General Public License

16 along with the program. If not, see <http://www.gnu.org/licenses/>

17 */

18 #ifndef KEYB_H_

19 #define KEYB_H_

20

21 #define KB_ANY (-1)

22 #define KB_ALT (-2)

23 #define KB_CTRL (-3)

24 #define KB_SHIFT (-4)

25

26 /* special keys */

27 enum {

28 KB_LALT, KB_RALT,

29 KB_LCTRL, KB_RCTRL,

30 KB_LSHIFT, KB_RSHIFT,

31 KB_F1, KB_F2, KB_F3, KB_F4, KB_F5, KB_F6,

32 KB_F7, KB_F8, KB_F9, KB_F10, KB_F11, KB_F12,

33 KB_CAPSLK, KB_NUMLK, KB_SCRLK, KB_SYSRQ,

34 KB_ESC = 27,

35 KB_INSERT, KB_DEL, KB_HOME, KB_END, KB_PGUP, KB_PGDN,

36 KB_LEFT, KB_RIGHT, KB_UP, KB_DOWN,

37 KB_NUM_DOT, KB_NUM_ENTER, KB_NUM_PLUS, KB_NUM_MINUS, KB_NUM_MUL, KB_NUM_DIV,

38 KB_NUM_0, KB_NUM_1, KB_NUM_2, KB_NUM_3, KB_NUM_4,

39 KB_NUM_5, KB_NUM_6, KB_NUM_7, KB_NUM_8, KB_NUM_9,

40 KB_BACKSP = 127

41 };

42

43

44 #ifdef __cplusplus

45 extern "C" {

46 #endif

47

48 int kb_init(int bufsz); /* bufsz can be 0 for no buffered keys */

49 void kb_shutdown(void); /* don't forget to call this at the end! */

50

51 /* Boolean predicate for testing the current state of a particular key.

52 * You may also pass KB_ANY to test if any key is held down.

53 */

54 int kb_isdown(int key);

55

56 /* waits for any keypress */

57 void kb_wait(void);

58

59 /* removes and returns a single key from the input buffer.

60 * If buffering is disabled (initialized with kb_init(0)), then it always

61 * returns the last key pressed.

62 */

63 int kb_getkey(void);

64

65 #ifdef __cplusplus

66 }

67 #endif

68

69 #endif /* KEYB_H_ */