/*
 * secret_knock_lib.h
 *
 *  Created on: 03/12/2013
 *      Author: Filipe Ribeiro
 */

#ifndef SECRET_KNOCK_LIB_H_
#define SECRET_KNOCK_LIB_H_

#include "msp430g2553.h"

//	DEFINITIONS
#define TIMER_A_0	1
#define TIMER_A_1	2

#define RECORD_MODE_ON		1
#define RECORD_MODE_OFF		2
//	knock configuration
#define KNOCK_TOLERANCE		2000		//	max error tolerance
#define TOTAL_TOLERANCE		10000		//	max error tolerance
#define KNOCK_MAX_SEQ		20			//	max number of knocks
#define KNOCK_ELAPSE_TIME	3000		//	max knock interval in ms
#define KNOCK_NORM_INTERVAL	10000		//	normalized max knock interval
#define KNOCK_OK			1
#define KNOCK_NOT_OK		2

#define		PORT1_DIR			BIT6+BIT4+BIT0
#define		PORT2_DIR			0

#define		GREEN_LED_ON		(P1OUT |= BIT6)
#define		YELLOW_LED_ON		(P1OUT |= BIT4)
#define		RED_LED_ON			(P1OUT |= BIT0)

#define		GREEN_LED_OFF		(P1OUT &= ~BIT6)
#define		YELLOW_LED_OFF		(P1OUT &= ~BIT4)
#define		RED_LED_OFF			(P1OUT &= ~BIT0)

#define		GREEN_LED_TOGGLE	(P1OUT ^= BIT6)

#define		PUSH_BUTTON			(BIT3)
#define		CHECK_PUSH_BUTTON	(P1IN & BIT3)

#define		PIEZO_PIN			BIT5
#define		CHECK_PIEZO_PIN		(P1IN & BIT5)

#define		MOTOR_ON			(P2OUT |= BIT3)
#define		MOTOR_OFF			(P2OUT &= ~BIT3)

//	GLOBAL VARIABLES
extern unsigned char recordMode;
extern unsigned char stupidUser;
extern unsigned long int elapseTime;
extern unsigned long int knockBuffer[KNOCK_MAX_SEQ];
extern unsigned long int passwordBuffer[KNOCK_MAX_SEQ];
extern unsigned char passwordLength;
extern unsigned char knockIndex;

//	FUNCTION PROTOTYPES
void portInit(void);
void timerAInit(unsigned char timerAMask);
unsigned char passwordCheck(void);
void passwordRecord(void);
void knockNormalize(void);
void knockReset(void);
void knockInit(void);


#endif /* SECRET_KNOCK_LIB_H_ */