LCOM1920-T02G10

#include "keyboard.h"

//#include "lab3.c"

#include <lcom/lcf.h>

#include <minix/sysutil.h>

#include <stdint.h>

#include "i8042.h"

#include "i8254.h"

#include <lcom/lab3.h>

#include <stdbool.h>

extern uint32_t scancode;

static int hook_id = 1;

extern uint32_t cnt;

  extern int flag;

void(kbc_ih)() {

  uint8_t scan_arr[2] = {0, 0};

#ifdef LAB3

    cnt++;

#endif

    sys_inb(IN_BUF, &scancode);

    if (scancode & O_BUFFER_FULL) {

#ifdef LAB3

      cnt++;

#endif

      sys_inb(I_O_BUFFER, &scancode);

              if (scancode != TWO_BYTES && flag == 0) {

                scan_arr[0] = scancode;

                kbd_print_scancode(!(scancode & PAR_ERR), 1, scan_arr);

              }

              else if (scancode == TWO_BYTES) {

                scan_arr[0] = scancode;

                flag = 1;

              }

              else if (flag == 1) {

                scan_arr[1] = scancode;

                kbd_print_scancode(!(scancode & PAR_ERR), 2, scan_arr);

                flag = 0;

              }

    }

}

int kbd_subscribe_int(uint8_t *bit_no) {

  *bit_no = hook_id;

  if (sys_irqsetpolicy(IRQ_KB, (IRQ_REENABLE | IRQ_EXCLUSIVE), &hook_id) != OK) {

    printf("ERROR kbd subscribe failed");

    return 1;

  }

  return 0;

}

int kbd_unsubscribe_int() {

  if (sys_irqrmpolicy(&hook_id) != OK) {

    printf("ERROR kbd unsubscribe failed");

    return 1;

  }

  return 0;

}