66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
#include <stdint.h>
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#include "std/kstd.h"
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#include "ps2/keyboard.h"
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#include "cpu/pic.h"
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#include "cpu/idt.h"
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#include "cpu/io.h"
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#include "gfx/terminal.h"
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const char us_map[128] = {
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0, 27, '1', '2', '3', '4', '5', '6', '7', '8',
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'9', '0', '-', '=', '\b',
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'\t',
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'q', 'w', 'e', 'r',
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't', 'y', 'u', 'i', 'o', 'p', '[', ']', '\n',
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0, // 29 ctrl
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'a', 's', 'd', 'f', 'g', 'h', 'j', 'k', 'l', ';',
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'\'', '`', 0, // 42 left shift
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'\\', 'z', 'x', 'c', 'v', 'b', 'n',
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'm', ',', '.', '/', 0, // 54 right shift
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'*',
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0, // 56 alt
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' ',
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0, // 58 caps lock
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0, // 59 F1 key
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0, 0, 0, 0, 0, 0, 0, 0,
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0, // 68 F10 key
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0, // 69 num lock
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0, // 70 scroll lock
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0, // 71 home key
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0, // 72 up arrow
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0, // 73 page up
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'-',
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0, // 75 left arrow
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0,
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0, // 77 right arrow
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'+',
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0, // 79 end key
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0, // 80 down arrow
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0, // 81 page down
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0, // 82 insert key
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0, // 83 delete key
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0, 0, 0,
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0, // 87 F11 key
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0, // 88 F12 key
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0
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};
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__attribute__((interrupt))
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static void irq(struct interrupt_frame_32 *frame) {
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uint8_t scancode = inb(0x60);
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if (scancode & 128) {
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goto end; // ignore release scancode
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}
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terminal_putchar(us_map[scancode]);
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end:
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pic_send_eoi(1);
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}
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void keyboard_init(void) {
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pic_irq_clear_mask(1);
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idt_register_handler(33, (size_t)irq);
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inb(0x60);
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}
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