#include "sha1/sha1.h"
#include "hmac-sha1/hmac-sha1.h"
#include "trunc.h"
#include "buffer.h"
#include "usbdrv.h"
#include "usb_key_codes.h"

#include <util/delay.h>
#include <avr/io.h>


#define PORT_BTN PORTB
#define PIN_BTN PINB
#define DDR_BTN DDRB
#define PBTN PB3

#define CNTPOS_PTR ((void*)1)
#define ERROR 32202

#ifndef UINT32_MAX 
#define UINT32_MAX  4294967296
#endif

#define DEV_STATE_RESET 0
#define DEV_STATE_SENT  1
#define DEV_STATE_CONFIRMED 2