/*

 * Master Firmware: Configuration

 *

 * Wireless Observational Modular Aerial Network

 * 

 * Ethan Zonca

 * Matthew Kanning

 * Kyle Ripperger

 * Matthew Kroening

 *

 */

#ifndef CONFIG_H_

#define CONFIG_H_

#include <avr/pgmspace.h>

// --------------------------------------------------------------------------

// Hardware settings

// --------------------------------------------------------------------------

#define F_CPU 11059200

#define BOARDTEMP_ADDR 0x90

// --------------------------------------------------------------------------

// Module config (master.c)

// --------------------------------------------------------------------------

// Debug Output

//#define DEBUG_OUTPUT

// Blackout (turn off all but power LEDs)

#define BLACKOUT_ENABLE

#define BLACKOUT_TIMEOUT 300000 // Blackout after 5 minutes (hopefully after fix)

// Board heater setpoint

// Touchdown buzzer

#define BUZZER_RATE 3000

#define BUZZER_DURATION 1

#define BUZZER_FAILSAFE_DURATION 600000

#define BUZZER_TRIGGER_MINDURATION 1

#define BUZZER_TRIGGER_MAXALTITUDE 1

// --------------------------------------------------------------------------

// Error Codes config (logger.c)

// --------------------------------------------------------------------------

// SD Card

#define ERROR_SLAVETIMEOUT 0

#define ERROR_SD_INIT 1

#define ERROR_SD_PARTITION 2

#define ERROR_SD_FILE 3

#define ERROR_XBEETIMEOUT 4

#define ERROR_FATAL 5

#define ERROR_ATFAIL 6

#define ERROR_EXITAT 7

#define ERROR_INFOTEXT 8

// !!! Please specify/update detailed messages for these error codes in logger.c

// --------------------------------------------------------------------------

// Slave Sensors config (slavesensors.c)

// --------------------------------------------------------------------------

// Slave data structure size

#define MAX_NUM_SLAVES 5	// Maximum number of nodes in the system

#define MAX_NUM_SENSORS 10	// Maximum number of unique types of sensors in the system

// Node identifier of log destination xbee

#define XBEE_LOGDEST_NAME "HAB-LOGGER"

// Rate to request data from slaves. Must be greater than AT delay * number slaves

#define DATAREQUEST_RATE 3000

// Timeouts

#define TIMEOUT_SLAVEREQUEST 1000

#define TIMEOUT_NETWORKSCAN 7000

#define TIMEOUT_EXITAT 2000

#define TIMEOUT_XBEERESPONSE 2000

// Slave data request max retries (for retry upon corrupt data reception)

#define MAX_SLAVEREQUEST_RETRIES 2

/*

 * sensors.c

 *

 * Created: 11/19/2012 9:25:01 PM

 *  Author: kripperger

 */ 

#include <inttypes.h>

#include <avr/io.h>

#include <avr/interrupt.h>

#include "../config.h"

#include <util/delay.h>

#include "sensors.h"

#include "i2c.h"

void sensors_setup() 

{

	//ADC register configurations for battery level detection on PA0

	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 |= 0;											// Select ADC0 as the conversion channel (default)

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

	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	

}

int8_t	boardTemp = 255;	// Board Temperature (from i2c)

void sensors_readBoardTemp()

{

	boardTemp = i2c_read(BOARDTEMP_ADDR, 0x00);		// Read only the first byte of data (we don't need the resolution here)

	boardTemp = ((boardTemp*18)/10) + (32);			// Converting Celsius to Fahrenheit

	boardTemp = boardTemp - 3;						// Linear offset

}

int8_t sensors_getBoardTemp(void)

{

	return boardTemp;

}

uint16_t batt;		// Battery voltage (from ADC)

void sensors_readBatt()

{

	uint8_t battL = ADCL;					// Read low battery byte from ADC (all 8 bits)

	batt = ADCH;					// Read high battery byte from ADC (only two LSBs)

	batt = batt << 8;

	batt |= battL;

}

uint16_t sensors_getBatt(void)		// Gets battery voltage from variable

{

}

	// Software timers	

	uint32_t lastAprsBroadcast = 0;

	uint32_t lastLog = 0;

	uint32_t lastLedCycle = 0;

	uint32_t lastDataReq = 0;

	uint32_t lastBuzz = 0;

	// Result of last parser run

	int parseResult = PARSERESULT_NODATA;

	// FIXME: Probably don't need this.

	serial1_ioff();

	while(1)

    {

		// Periodic: LED execution indicator

		if(time_millis() - lastLedCycle > LEDCYCLE_RATE) 

		{

			led_power_toggle();

			led_spin();

			// Enable GPS serial interrupts if we aren't doing AFSK

			if(!afsk_busy())

				serial1_ion();

			lastLedCycle = time_millis();	

		}

		// Periodic: Logging

		if(time_millis() - lastLog > LOGGER_RATE) 

		{

			led_on(LED_CYCLE);

			heater_regulateTemp();

			// Turn on sideboard LED if we have a fix

			if(gps_hasfix()) 

			{

				led_on(LED_SIDEBOARD);

			}

			else 

			{

				led_off(LED_SIDEBOARD);

			}

			sensors_readBoardTemp();

			sensors_readBatt();

			// Write CSV header and log data values

			sensordata_logvalues();			

			led_off(LED_CYCLE);

			lastLog = time_millis();

		}		

		// Periodic: Buzzer

		if(time_millis() - lastBuzz > BUZZER_RATE) {

			if(sensordata_isTouchdown())

			{

				led_on(LED_BUZZ);

				_delay_ms(BUZZER_DURATION);

				led_off(LED_BUZZ);

			}			

			lastBuzz = time_millis();

		}

		// Periodic: Data Request

		if(time_millis() - lastDataReq > DATAREQUEST_RATE)  

		{

			// Start getting values for next transmission

			if(slavesensors_isrequesting())

			{

				// TODO: something is terribly wrong. Timeout?

			}

			else

			{

				slavesensors_startprocess();

			}

			lastDataReq = time_millis();

		}

		// Periodic: APRS transmission

		if(time_millis() - lastAprsBroadcast > APRS_TRANSMIT_PERIOD) 

		{

			// Check for touchdown

			sensordata_checkTouchdown();

			// Ensure we aren't already transmitting

			while(afsk_busy());

			// Turn off interrupts and transmit APRS sentence

			serial1_ioff();

			aprs_send(); // non-blocking