90 lines
2.7 KiB
C
90 lines
2.7 KiB
C
#include "keyboard.h"
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char key_to_char[128] = {
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0, 0, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0, 0,
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'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', 0,
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0, 'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', '\'', '`', 0, '\\',
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'z', 'x', 'c', 'v', 'b', 'n', 'm', ',', '.', '/', 0, '*', 0, ' ', 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '7', '8', '9', '-', '4', '5', '6', '+',
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'1', '2', '3', '0', '.', 0, 0, 0, 0, 0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
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};
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char key_to_char_caps[128] = {
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0, 0, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 0, 0,
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'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '[', ']', 0,
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0, 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ';', '\'', '`', 0, '\\',
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'Z', 'X', 'C', 'V', 'B', 'N', 'M', ',', '.', '/', 0, '*', 0, ' ', 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '7', '8', '9', '-', '4', '5', '6', '+',
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'1', '2', '3', '0', '.', 0, 0, 0, 0, 0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
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};
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char key_to_char_shift[128] = {
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0, 0, '!', '@', '#', '$', '%', '^', '&', '*', '(', ')', '_', '+', 0, 0,
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'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', 'O', 'P', '{', '}', 0,
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0, 'A', 'S', 'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', '"', '~', 0, '|',
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'Z', 'X', 'C', 'V', 'B', 'N', 'M', ',', '.', '/', 0, '*', 0, ' ', 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '7', '8', '9', '-', '4', '5', '6', '+',
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'1', '2', '3', '0', '.', 0, 0, 0, 0, 0,
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0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
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};
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uint8_t current_scancode = 0;
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__attribute__((interrupt)) void keyboard_interrupt(struct interrupt_frame* frame) {
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current_scancode = inb(0x60);
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outb(0x20, 0x21);
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}
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void init_keyboard() {
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set_entry(0x21, 0x08, &keyboard_interrupt, 0x8E);
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while (inb(0x64) & 1) {
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inb(0x60);
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}
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outb(0x64, 0xAE);
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outb(0x64, 0x20);
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uint8_t keyboard_status = (inb(0x60) | 1) & ~0x10;
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outb(0x64, 0x60);
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outb(0x60, keyboard_status);
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outb(0x60, 0xF4);
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}
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bool caps_on = false;
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bool shift_on = false;
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void readline(int max, char* buffer) {
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int index = 0;
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uint8_t scancode = current_scancode;
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while (scancode != 0x1c || index == 0) {
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while (scancode == current_scancode);
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scancode = current_scancode;
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char decoded = 0;
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if ((scancode&0x7f) == 0x2a)
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shift_on = !(scancode&0x80);
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if (scancode == 0x0e && index > 0) {
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set_curpos_raw(get_curpos()-1);
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non_moving_put(' ');
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index--;
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}
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if (!shift_on)
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decoded = key_to_char[scancode&0x7f];
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else
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decoded = key_to_char_shift[scancode&0x7f];
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if (decoded && scancode < 0x80) {
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buffer[index++] = decoded;
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printf("%c", decoded);
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}
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}
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printf("\n");
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} |