/*
 * hal.cpp
 *
 *  Created on: Aug 3, 2016
 *      Author: Philipp Hinz
 */
#include <wiringPi.h>
#include <stdlib.h>
#include <errno.h>
#include <string.h>
#include "hal.h"
#include "global.h"
#include "logger.h"

void halInit(void) {
	halRelaisOff(RELAIS_HEAT);
	halRelaisOff(RELAIS_PUMP);
	halRelaisOff(RELAIS_POWER);
	pinMode(RELAIS_HEAT, OUTPUT);
	pinMode(RELAIS_PUMP, OUTPUT);
	pinMode(RELAIS_POWER, OUTPUT);
	pinMode(HAL_INT0, INPUT);
	pinMode(HAL_INT1, INPUT);
	if (wiringPiISR(HAL_INT0, INT_EDGE_FALLING, &halInt0) < 0) {
		logger_error("Unable to setup ISR0: %s\n", strerror(errno));
		return;
	}
	if (wiringPiISR(HAL_INT1, INT_EDGE_FALLING, &halInt1) < 0) {
		logger_error("Unable to setup ISR1: %s\n", strerror(errno));
		return;
	}
}
void halRelaisOn(int relais) {
	halRelaisSet(relais, LOW);
}

void halRelaisOff(int relais) {
	halRelaisSet(relais, HIGH);
}

void halRelaisSet(int relais, int state) {
	if (state != HIGH && state != LOW)
		return;
	switch (relais) {
	case RELAIS_POWER:
	case RELAIS_HEAT:
	case RELAIS_PUMP:
		digitalWrite(relais, state);
		break;
	}
}

void halInt0(void) {
	halRelaisOn(RELAIS_POWER);
	logger(V_BASIC, "Int0 triggered\n");
}

void halInt1(void) {
	halRelaisOff(RELAIS_POWER);
	logger(V_BASIC, "Int1 triggered\n");
}