/*

 * io.c

 *

 * Created: 11/7/2012 7:17:52 PM

 *  Author: kripperger

 */ 

#include <avr/io.h>

#include "../config.h"

#include "inputOutput.h"

#include "led.h"

#include "sensors.h"

int8_t	moduleID;	// Slave Module ID from rotary dip switch (or EEPROM)

 void io_configure()

 {

	// Configure ports/pins

	DDRB |= (1 << DDB4);		// Set PB4 to Output for Heater (also allows SCK to operate)

	DDRC &= ~(1 << DDC2);		// Set PC2 to input for rotary dip    //TEMPORARY//

	DDRC &= ~(1 << DDC3);		// Set PC3 to input for rotary dip    //TEMPORARY//

	DDRC &= ~(1 << DDC4);		// Set PC4 to input for rotary dip    //TEMPORARY//

	DDRC &= ~(1 << DDC5);		// Set PC5 to input for rotary dip    //TEMPORARY//

	DDRA &= ~(1 << DDA7);		// Set PA7 to input for battery voltage divider

	ADCSRA |= (1 << ADPS2) | (1 << ADPS1) | (1 << ADPS0);	// Set prescaler for ADC, 128 gives ADC freq of 125 KHz

	ADMUX |= (1 << REFS0);									// Set ADC reference voltage to AVCC

	ADMUX |= (1 << ADLAR);									// Sets 10 bit ADC to 8 bit

	ADMUX |= (1 << MUX2) | (1 << MUX1) | (1 << MUX0);		// Select ADC7 as the conversion channel

	ADCSRA |= (1 << ADATE);									// Enables auto trigger, determined in ADCSRB bits ADTS

	//ADCSRA |= (1 << ADIF);									// 

//ADCSRA |= (1 << ADIE);									// ADC interrupt enable set

	ADCSRA |= (1 << ADEN);									// Enable ADC

	ADCSRA |= (1 << ADSC);									// Start ADC measurements.  ADC should now continuously run conversions, which are stored in ADCH 0x79

 }

 void io_readModuleId()

 {

	// Get ID from rotary dip and return it. 

	moduleID = 0;

	// This method is temporary as the next release will read the module ID from EEPROM

	PORTC |= (1 << PC2);	// Pull pins on rotary dip high

	PORTC |= (1 << PC3);	// Pull pins on rotary dip high

	PORTC |= (1 << PC4);	// Pull pins on rotary dip high

	PORTC |= (1 << PC5);	// Pull pins on rotary dip high

	moduleID = ((PINC & 0b00011100) >> 2);		// Read Dip Encoder

	moduleID = ~moduleID;						//Invert Dip reading

	moduleID = (moduleID & 0b0111);				//Mask bits

/*

	while(moduleID==0)

	{

		moduleID = i2c_read(EEPROM_ADDR, 0x04);

	}

*/

 }

 uint8_t io_getModuleId()

 {

	return moduleID;

 }

 void io_heaterOn()

 {		

	PORTB |= (1 << PB4);	//ON

 }

	lightH = lightH << 4;

	mantissa = lightH | lightL;

	//mantissa = mantissa << 4;

	//mantissa = mantissa >> 4;

	//lux = (pow(2, exponent) * (float)(mantissa * 0.045));

	lux = (float)(pow(2,exponent) * mantissa) * 0.045;

	// FOR BOTH BYTES:

	// light = light << 4;

	// light = light | (0x0F & i2c_read(LIGHT_ADDR, 0x04));  //  This can be used to read in the 4 LSBs from the second register

	// exponent = 8xE3 + 4xE2 + 2xE1 + E0

	// mantissa = 128xM7 + 64xM6 + 32xM5 + 16xM4 + 8xM3 + 4xM2 + 2xM1 + M0

	// light = 2^(exponent)*mantissa*0.045

}

void sensors_readBatt()

{

	batt = ADCH;					// Read battery level from ADC

}

int16_t sensors_getSpiTemp(void)	// Gets spi temperature from variable

{

	return spiTemp;

}

int8_t sensors_getBoardTemp(void)	// Gets board temperature from variable

{

	return boardTemp;

}

int32_t sensors_getPressure(void)	// Gets pressure from variable

{

	return pressure;

}

uint16_t sensors_getHumid(void)			// Gets relative humidity from variable

{

	return humid;

}

uint32_t sensors_getLux(void)		// Gets light from variable

{

	return lux;

}

//possibly uint8_t

{

	return batt;

}

uint32_t sensors_getAltitude(void)

{

	return altitude;

}

/*

 * sensors.h

 *

 * Created: 11/19/2012 9:24:50 PM

 *  Author: kripperger

 */ 

#ifndef SENSORS_H_

#define SENSORS_H_

void sensors_setupPressure(void);	// Reads pressure calibration values

void sensors_readSpiTemp(void);		// Reads spi temperature

void sensors_readBoardTemp(void);	// Reads board temperature

void sensors_readPressure(void);	// Reads pressure

void sensors_readHumid(void);		// Reads humidity

void sensors_readBatt(void);

int16_t sensors_getSpiTemp(void);	// Gets spi temperature from variable

int8_t sensors_getBoardTemp(void);	// Gets board temperature from variable

int32_t sensors_getPressure(void);	// Gets pressure from variable

uint16_t sensors_getHumid(void);	// Gets humidity from variable

uint32_t sensors_getLux(void);		// Gets lux from variable

int8_t sensors_getBatt(void);		// Gets battery voltage from variable

#endif /* SENSORS_H_ */