477 lines
9.5 KiB
C
477 lines
9.5 KiB
C
#include "keyboard.h"
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#include "io.h"
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#include "klibc.h"
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#include "ringbuffer.h"
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#define KEYBOARD_BUFFER_SIZE 128
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static ringbuffer_t buf;
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int keyboardSetup()
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{
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buf = ringbufferCreate(KEYBOARD_BUFFER_SIZE);
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return 0;
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}
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const char *scancode[128] = {
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/* 0 */ 0,
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/* 1 */ "\e", /* escape */
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/* 2 */ "&",
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/* 3 */ "é",
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/* 4 */ "\"",
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/* 5 */ "'",
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/* 6 */ "(",
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/* 7 */ "-",
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/* 8 */ "è",
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/* 9 */ "_",
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/* 10 */ "ç",
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/* 11 */ "à",
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/* 12 */ ")",
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/* 13 */ "=",
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/* 14 */ "\b", /* Backspace */
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/* 15 */ "\t", /* Tab */
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/* 16 */ "a",
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/* 17 */ "z",
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/* 18 */ "e",
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/* 19 */ "r",
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/* 20 */ "t",
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/* 21 */ "y",
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/* 22 */ "u",
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/* 23 */ "i",
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/* 24 */ "o",
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/* 25 */ "p",
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/* 26 */ "^",
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/* 27 */ "$",
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/* 28 */ "\n",
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/* 29 */ 0, /* left control */
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/* 30 */ "q",
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/* 31 */ "s",
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/* 32 */ "d",
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/* 33 */ "f",
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/* 34 */ "g",
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/* 35 */ "h",
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/* 36 */ "j",
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/* 37 */ "k",
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/* 38 */ "l",
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/* 39 */ "m",
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/* 40 */ "ù",
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/* 41 */ 0, /*²*/
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/* 42 */ 0, /* left shift */
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/* 43 */ "*",
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/* 44 */ "w",
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/* 45 */ "x",
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/* 46 */ "c",
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/* 47 */ "v",
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/* 48 */ "b",
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/* 49 */ "n",
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/* 50 */ ",",
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/* 51 */ ";",
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/* 52 */ ":",
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/* 53 */ "!",
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/* 54 */ 0, /* right shift*/
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/* 55 */ "*",
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/* 56 */ 0, /* left alt*/
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/* 57 */ " ",
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/* 58 */ 0, /* caps Lock */
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/* 59 */ "\eOP", /* F1 */
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/* 60 */ "\eOQ", /* F2 */
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/* 61 */ "\eOR", /* F3 */
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/* 62 */ "\eOS", /* F4 */
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/* 63 */ "\e[15~", /* F5 */
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/* 64 */ "\e[17~", /* F6 */
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/* 65 */ "\e[18~", /* F7 */
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/* 66 */ "\e[19~", /* F8 */
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/* 67 */ "\e[20~", /* F9 */
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/* 68 */ "\e[21~", /* F10 */
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/* 69 */ 0, /* VerrNum*/
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/* 70 */ 0,
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/* 71 */ "7",
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/* 72 */ "8",
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/* 73 */ "9",
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/* 74 */ "-",
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/* 75 */ "4",
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/* 76 */ "5",
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/* 77 */ "6",
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/* 78 */ "+",
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/* 79 */ "1", /* pavnum*/
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/* 80 */ "2",
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/* 81 */ "3",
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/* 82 */ "0",
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/* 83 */ ".",
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/* 84 */ 0,
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/* 85 */ 0,
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/* 86 */ "<",
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/* 87 */ "\e[23~", /* F11 */
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/* 88 */ "\e[24~", /* F12 */
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/* 89 */ 0,
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/* 90 */ 0,
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/* 91 */ 0,
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/* 92 */ 0,
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/* 93 */ 0,
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/* 94 */ 0,
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/* 95 */ 0,
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/* 96 */ 0,
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/* 97 */ 0,
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/* 98 */ 0,
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/* 99 */ 0,
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/* 100 */ 0,
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/* 101 */ 0,
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/* 102 */ 0,
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/* 103 */ 0,
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/* 104 */ 0,
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/* 105 */ 0,
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/* 106 */ 0,
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/* 107 */ 0,
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/* 108 */ 0,
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/* 109 */ 0,
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/* 110 */ 0,
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/* 111 */ 0,
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/* 112 */ 0,
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/* 113 */ 0,
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/* 114 */ 0,
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/* 115 */ 0,
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/* 116 */ 0,
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/* 117 */ 0,
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/* 118 */ 0,
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/* 119 */ 0,
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/* 120 */ 0,
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/* 121 */ 0,
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/* 122 */ 0,
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/* 123 */ 0,
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/* 124 */ 0,
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/* 125 */ 0,
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/* 126 */ 0,
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/* 127 */ 0};
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const char *scancode_alt[128] = {
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/* 0 */ 0,
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/* 1 */ "\e",
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/* 2 */ "1",
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/* 3 */ "~",
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/* 4 */ "#",
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/* 5 */ "{",
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/* 6 */ "[",
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/* 7 */ "|",
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/* 8 */ "`",
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/* 9 */ "\\",
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/* 10 */ "^",
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/* 11 */ "@",
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/* 12 */ "]",
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/* 13 */ "}",
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/* 14 */ "\b", /* Shift-Backspace */
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/* 15 */ "\e[Z", /* Shift-Tab */
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/* 16 */ "A",
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/* 17 */ "Z",
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/* 18 */ "E",
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/* 19 */ "R",
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/* 20 */ "T",
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/* 21 */ "Y",
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/* 22 */ "U",
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/* 23 */ "I",
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/* 24 */ "O",
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/* 25 */ "P",
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/* 26 */ "\"",
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/* 27 */ "£",
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/* 28 */ "\n",
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/* 29 */ 0, /* left control */
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/* 30 */ "Q",
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/* 31 */ "S",
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/* 32 */ "D",
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/* 33 */ "F",
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/* 34 */ "G",
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/* 35 */ "H",
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/* 36 */ "J",
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/* 37 */ "K",
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/* 38 */ "L",
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/* 39 */ "M",
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/* 40 */ "%",
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/* 41 */ 0,
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/* 42 */ 0,
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/* 43 */ "µ",
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/* 44 */ "W",
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/* 45 */ "X",
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/* 46 */ "C",
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/* 47 */ "V",
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/* 48 */ "B",
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/* 49 */ "N",
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/* 50 */ "?",
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/* 51 */ ".",
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/* 52 */ "/",
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/* 53 */ "§",
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/* 54 */ 0,
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/* 55 */ 0,
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/* 56 */ 0,
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/* 57 */ 0,
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/* 58 */ 0,
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/* 59 */ "\eOP", /* Shift-F1 */
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/* 60 */ "\eOQ", /* Shift-F2 */
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/* 61 */ "\eOR", /* Shift-F3 */
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/* 62 */ "\eOS", /* Shift-F4 */
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/* 63 */ "\e[15;2~", /* Shift-F5 */
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/* 64 */ "\e[17;2~", /* Shift-F6 */
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/* 65 */ "\e[18;2~", /* Shift-F7 */
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/* 66 */ "\e[19;2~", /* Shift-F8 */
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/* 67 */ "\e[20:2~", /* Shift-F9 */
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/* 68 */ "\e[21:2~", /* Shift-F10 */
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/* 69 */ 0,
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/* 70 */ 0,
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/* 71 */ 0,
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/* 72 */ 0,
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/* 73 */ 0,
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/* 74 */ 0,
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/* 75 */ 0,
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/* 76 */ 0,
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/* 77 */ 0,
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/* 78 */ 0,
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/* 79 */ 0,
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/* 80 */ 0,
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/* 81 */ 0,
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/* 82 */ 0,
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/* 83 */ 0,
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/* 84 */ 0,
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/* 85 */ 0,
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/* 86 */ ">",
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/* 87 */ "\e[23;2~", /* Shift-F11 */
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/* 88 */ "\e[24;2~", /* Shift-F12 */
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/* 89 */ 0,
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/* 90 */ 0,
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/* 91 */ 0,
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/* 92 */ 0,
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/* 93 */ 0,
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/* 94 */ 0,
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/* 95 */ 0,
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/* 96 */ 0,
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/* 97 */ 0,
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/* 98 */ 0,
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/* 99 */ 0,
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/* 100 */ 0,
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/* 101 */ 0,
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/* 102 */ 0,
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/* 103 */ 0,
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/* 104 */ 0,
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/* 105 */ 0,
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/* 106 */ 0,
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/* 107 */ 0,
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/* 108 */ 0,
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/* 109 */ 0,
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/* 110 */ 0,
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/* 111 */ 0,
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/* 112 */ 0,
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/* 113 */ 0,
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/* 114 */ 0,
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/* 115 */ 0,
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/* 116 */ 0,
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/* 117 */ 0,
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/* 118 */ 0,
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/* 119 */ 0,
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/* 120 */ 0,
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/* 121 */ 0,
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/* 122 */ 0,
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/* 123 */ 0,
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/* 124 */ 0,
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/* 125 */ 0,
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/* 126 */ 0,
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/* 127 */ 0};
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const char *scancode_shift[128] = {
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/* 0 */ 0,
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/* 1 */ "\e",
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/* 2 */ "1",
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/* 3 */ "2",
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/* 4 */ "3",
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/* 5 */ "4",
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/* 6 */ "5",
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/* 7 */ "6",
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/* 8 */ "7",
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/* 9 */ "8",
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/* 10 */ "9",
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/* 11 */ "0",
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/* 12 */ "°",
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/* 13 */ "+",
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/* 14 */ "\b", /* Shift-Backspace */
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/* 15 */ "\e[Z", /* Shift-Tab */
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/* 16 */ "A",
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/* 17 */ "Z",
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/* 18 */ "E",
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/* 19 */ "R",
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/* 20 */ "T",
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/* 21 */ "Y",
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/* 22 */ "U",
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/* 23 */ "I",
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/* 24 */ "O",
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/* 25 */ "P",
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/* 26 */ "\"",
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/* 27 */ "£",
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/* 28 */ "\n",
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/* 29 */ 0, /* left control */
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/* 30 */ "Q",
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/* 31 */ "S",
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/* 32 */ "D",
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/* 33 */ "F",
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/* 34 */ "G",
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/* 35 */ "H",
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/* 36 */ "J",
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/* 37 */ "K",
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/* 38 */ "L",
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/* 39 */ "M",
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/* 40 */ "%",
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/* 41 */ 0,
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/* 42 */ 0,
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/* 43 */ "µ",
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/* 44 */ "W",
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/* 45 */ "X",
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/* 46 */ "C",
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/* 47 */ "V",
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/* 48 */ "B",
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/* 49 */ "N",
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/* 50 */ "?",
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/* 51 */ ".",
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/* 52 */ "/",
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/* 53 */ "§",
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/* 54 */ 0,
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/* 55 */ 0,
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/* 56 */ 0,
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/* 57 */ 0,
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/* 58 */ 0,
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/* 59 */ "\eOP", /* Shift-F1 */
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/* 60 */ "\eOQ", /* Shift-F2 */
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/* 61 */ "\eOR", /* Shift-F3 */
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/* 62 */ "\eOS", /* Shift-F4 */
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/* 63 */ "\e[15;2~", /* Shift-F5 */
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/* 64 */ "\e[17;2~", /* Shift-F6 */
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/* 65 */ "\e[18;2~", /* Shift-F7 */
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/* 66 */ "\e[19;2~", /* Shift-F8 */
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/* 67 */ "\e[20:2~", /* Shift-F9 */
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/* 68 */ "\e[21:2~", /* Shift-F10 */
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/* 69 */ 0,
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/* 70 */ 0,
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/* 71 */ 0,
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/* 72 */ 0,
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/* 73 */ 0,
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/* 74 */ 0,
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/* 75 */ 0,
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/* 76 */ 0,
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/* 77 */ 0,
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/* 78 */ 0,
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/* 79 */ 0,
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/* 80 */ 0,
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/* 81 */ 0,
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/* 82 */ 0,
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/* 83 */ 0,
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/* 84 */ 0,
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/* 85 */ 0,
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/* 86 */ ">",
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/* 87 */ "\e[23;2~", /* Shift-F11 */
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/* 88 */ "\e[24;2~", /* Shift-F12 */
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/* 89 */ 0,
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/* 90 */ 0,
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/* 91 */ 0,
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/* 92 */ 0,
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/* 93 */ 0,
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/* 94 */ 0,
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/* 95 */ 0,
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/* 96 */ 0,
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/* 97 */ 0,
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/* 98 */ 0,
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/* 99 */ 0,
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/* 100 */ 0,
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/* 101 */ 0,
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/* 102 */ 0,
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/* 103 */ 0,
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/* 104 */ 0,
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/* 105 */ 0,
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/* 106 */ 0,
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/* 107 */ 0,
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/* 108 */ 0,
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/* 109 */ 0,
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/* 110 */ 0,
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/* 111 */ 0,
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/* 112 */ 0,
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/* 113 */ 0,
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/* 114 */ 0,
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/* 115 */ 0,
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/* 116 */ 0,
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/* 117 */ 0,
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/* 118 */ 0,
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/* 119 */ 0,
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/* 120 */ 0,
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/* 121 */ 0,
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/* 122 */ 0,
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/* 123 */ 0,
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/* 124 */ 0,
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/* 125 */ 0,
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/* 126 */ 0,
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/* 127 */ 0};
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void keyboard_do_irq()
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{
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static int lshift = 0;
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static int rshift = 0;
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static int capslock = 0;
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static int alt = 0;
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static int isExt = 0;
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unsigned char c = inb(KEYBOARD_DATA_PORT);
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const char *key = NULL;
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if (c > 0) {
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if (c == 0xE0) { // non printable such as page up/down ... See
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// https://wiki.osdev.org/Keyboard
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isExt = 1;
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} else if (isExt) {
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isExt = 0;
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return;
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}
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if (c < BREAK_CODE) {
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switch (c) {
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case 42:
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lshift = 1;
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break;
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case 54:
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rshift = 1;
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break;
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case 56:
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alt = 1;
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break;
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case 58:
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capslock = 1 - capslock;
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break;
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default:
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if ((lshift || rshift) ^ capslock) {
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key = scancode_shift[(int)c];
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} else if (alt) {
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key = scancode_alt[(int)c];
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} else {
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key = scancode[(int)c];
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}
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}
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} else {
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c = c - BREAK_CODE;
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switch (c) {
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case 42:
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lshift = 0;
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break;
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case 54:
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rshift = 0;
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break;
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case 56:
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alt = 0;
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break;
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}
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}
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}
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if (key){
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printf(key);
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ringbufferEnqueue(buf, *key);
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}
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}
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char keyboardRead()
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{
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uint8_t c;
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if (ringbufferDequeue(buf, &c)){
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return c;
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}
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return 0;
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}
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