/*

 * 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 (on SPI bus) to operate)

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

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

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

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

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

	//ADC register configurations for battery level detection on PA7

	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

	ADCSRB &= ~((1 << ADTS2) | (1 << ADTS1) | (1 << ADTS0));// Set ADC auto trigger source to free running mode

	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. 

	/*

	// 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)           //UNCOMMENT ALL THIS

	{

		moduleID = i2c_read(EEPROM_ADDR, 0x05);

	}

 }

 uint8_t io_getModuleId()

 {

	return moduleID;

 }

 void io_heaterOn()

 {		

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

 }

 void io_heaterOff()

 {

	PORTB &= ~(1 << PB4);	//OFF

 }

 uint8_t io_heaterStatus()

 {

	 uint8_t state;

	 state = 0;

	 state = ((PORTB & 0b00010000) >> 4);

	 return state;

 }

  void io_regulateTemp()

  {

			break;

	}

 }

 void modules_run(uint8_t id)

 {

	switch(id)

	{

		case 0:

			modules_generic();

			break;

		case 1:

			modules_sensors();

			break;

		case 2:

			modules_geiger();

			break;

		case 3:

			modules_cameras();

			break;

		default:

			modules_generic();

			break;

	}

 }

 void modules_generic_setup()

 {

 }

 void modules_sensors_setup()

 {

	DESELECT_TEMP;

	setup_spi();

	sensors_setupPressure();

 }

 void modules_geiger_setup()

 {

	// Pin setup

	//DDRA |= (1 << DDA1);	// PA1 is an output	///////////

	//geiger_on();	// Turn on HV supply	//////////////

	// Setup for interrupt input on PA0 (PCINT0)

	// Setup for interrupt from Timer2

	ASSR &= ~(1 << EXCLK);	// Disable external clock input (enabling crystal use)

	ASSR |= (1 << AS2);		// Enable timer2 async mode with an external crystal	

	_delay_ms(100);			// Let external 32KHz crystal stabilize

	TCCR2B = 0x05;			// Set the prescaler to 128: 32.768kHz / 128 = 1Hz overflow

	TIFR2 = 0x01;			// Reset timer2 overflow interrupt flag

	TIMSK2 = 0x01;			// Enable interrupt on overflow

 }

 void modules_cameras_setup()

 {

	 lastPicture = time_millis();	 

	 DDRA |= (1 << DDA0);	// Set PA0 to Output for Camera

	 DDRA |= (1 << DDA1);	// Set PA1 to Output for Camera

	 DDRA |= (1 << DDA2);	// Set PA2 to Output for Camera

	 DDRA |= (1 << DDA3);	// Set PA3 to Output for Camera

 }

 void modules_generic()

 {

	// Gathers data and performs functions for generic daughter board

 }

 void modules_sensors()

 {

	// Gathers data and performs functions for sensor daughter board

	sensors_readBoardTemp();		//Data Read

	sensors_readSpiTemp();			//Data Read	

	sensors_readPressure();			//Data Read

	//sensors_readHumid();			//Data Read

 }

 void modules_geiger()

 {

	// No data gatering function needed for geiger daughter board

		// This is taken care of in interrupt (See geiger.c)

		//lastRefresh = time_millis();

		//if ((time_millis() - lastRefresh) > 1000000)

		//{

		//	geiger_refresh();	//Refreshes every 1000sec (16min)

		//}			

 }

 void modules_cameras()

 {

	// Gathers data and performs functions for cameras daughter board

		//cameras_readAccelXYZ();

		if ((time_millis() - lastPicture) > CAMERA_FREQ)

		{

			cameras_sendPulse();

			lastPicture = time_millis();

		}

		else if ((time_millis() - lastPicture) > CAMERA_PULSE)

		{

			PORTA &= ~(1 << PA0);	// Pull pin on usb low

			PORTA &= ~(1 << PA1);	// Pull pin on usb low

			PORTA &= ~(1 << PA2);	// Pull pin on usb low

			PORTA &= ~(1 << PA3);	// Pull pin on usb low

		}		

 }