/*

 * config.h

 *

 * Created: 10/25/2012 10:00:09 PM

 *  Author: mkanning

 */

 #ifndef CONFIG_H_

 #define CONFIG_H_

 #define F_CPU 11059200				// Clock frequency (used in calculations)

//Serial

#define USART0_BAUDRATE 115200

#define USART1_BAUDRATE 115200 

// Circular serial buffer size. Must be at least MAX_CMD_LEN + 5

#define BUFFER_SIZE 32

// Maximum payload size of command

#define MAX_PAYLOAD_LEN 16

// Number of datatypes to transmit per module type

#define DATATYPES_GENERIC 3

#define DATATYPES_SENSOR 8

#define DATATYPES_GEIGER 4

#define DATATYPES_CAMERA 3

//Sensors and IO

#define SENSOR_LOOP 100				// Frequency of sensor reads (in ms) (should be 200)

#define HEATER_THRESHOLD 40			// Temperature threshold in Fahrenheit where heater is activated

 //I2C Addresses

 #define EEPROM_ADDR 0xA0		// Read 0xA1 - Write 0xA0

 #define BOARDTEMP_ADDR 0x90	// Read 0x91 - Write 0x90

 #define RTC_ADDR 0xB2			//DEBUG [Used for testing]      // Read 0xA3 - Write 0xA2

 #endif /* CONFIG_H_ */

void masterComm_packetSend_unsigned(uint8_t id, uint32_t data)

{

	serial0_sendChar('[');

	snprintf(buff2,64,"%u%lu",id,data);

	serial0_sendString(buff2);

	serial0_sendChar(']');

	serial0_sendChar(masterComm_checksum(buff2));

}

void masterComm_packetSend_signed(uint8_t id, int32_t data)

{

	serial0_sendChar('[');

	snprintf(buff2,64,"%u%ld",id,data);

	serial0_sendString(buff2);

	serial0_sendChar(']');

	serial0_sendChar(masterComm_checksum(buff2));

}

void masterComm_modules()

{

	// Send Board Temperature (Common for all modules)

	masterComm_packetSend_signed(0,sensors_getBoardTemp());

	// Send Heater Status (Common for all modules)

	masterComm_packetSend_unsigned(1,/*Heater Status Get Function Here */0);

	// Send Battery Level (Common for all modules)

	masterComm_packetSend_unsigned(2,/*Battery Level Get Function Here */0);

	// Send module specific sensor readings

	switch(io_getModuleId())

	{

		case 0:

			// Generic

			break;

		case 1:

			// Sensors

			// Send SPI Temperature (Air)

			masterComm_packetSend_unsigned(3,sensors_getSpiTemp());

			// Send Ambient Light (Needs to be formatted)

			// Send Humidity

			// Send Pressure 

			// Send Altitude

			break;

		case 2:

			// Geiger

			// Send CPM (radiation)

			masterComm_packetSend_unsigned(8,geiger_getCpm());

			break;

		case 3:

			// Camera

			break;

		default:

			break;

	}

}

void masterComm_send()

{

	masterComm_types();		// Calculates how many data types to send

	// Return request with number of data types to be sent

	serial0_sendChar('[');						// Send opening bracket

	snprintf(buff2,64,"@%u",dataTypes);				// Send package (@ reply and number of data types)

	serial0_sendString(buff2);

	serial0_sendChar(']');						// Send closing bracket

	serial0_sendChar(masterComm_checksum(buff2));	// Calculate and send checksum

	masterComm_modules();	// Send sensor data

}

void masterComm_checkParser()

{

	if (serparser_parse() == PARSERESULT_PARSEOK)

	{

		if (getPayloadType() == ('@'-0x30))		// Request for data recieved

		{

			led_on(2);

			// Send all data

			masterComm_send();

			//led_off(2);

		}	

	mb = i2c_read(PRESSURE_ADDR, 0xBA);

	mb = mb << 8;

	mb = mb | i2c_read(PRESSURE_ADDR, 0xBB);

	mc = i2c_read(PRESSURE_ADDR, 0xBC);

	mc = mc << 8;

	mc = mc | i2c_read(PRESSURE_ADDR, 0xBD);

	md = i2c_read(PRESSURE_ADDR, 0xBE);

	md = md << 8;

	md = md | i2c_read(PRESSURE_ADDR, 0xBF);

}

void sensors_readSpiTemp()

{

	// Select TEMP wait 100 microseconds then read four bytes

	SELECT_TEMP;

	_delay_us(100);

	uint8_t one = send_spi(0xFF);

	_delay_us(100);

	uint8_t two = send_spi(0xFF);

	_delay_us(100);

	uint8_t three = send_spi(0xFF);

	_delay_us(100);

	uint8_t four = send_spi(0xFF);

	DESELECT_TEMP;

	int16_t temperature = ((one<<4)|(two>>4));	// Shift and place into larger int. (Cuts off Decimal)

	temperature = (temperature & (0x0800)) ? (temperature & 0xF000) : temperature;	// Sign extend

	//int16_t temperature = ((one<<6)|(two>>2));	// Shift and place into larger int. (Includes Decimal)

	//temperature = (temperature & (0x2000)) ? (temperature & 0xC000) : temperature;	// Sign extend

	temperature = (two & 0x01) ? 0x00DE : temperature;	// Error Condition. If error is detected output is set to 222 degrees (0x00DE)

	// Note: Temperature still needs to be scaled in order to be accurate (eg. boil water). Do this before implementing.

	spiTemp = temperature;

}

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

}

void sensors_readPressure()

{

	_delay_us(4500);							//wait 4.5 ms

	ut = i2c_read(PRESSURE_ADDR, 0xF6);

	ut = ut << 8;

	ut = ut | i2c_read(PRESSURE_ADDR, 0xF7);	//ut = MSB<<8 + LSB

	_delay_us(4500);							//wait 4.5 ms

	up = i2c_read(PRESSURE_ADDR, 0xF6);

	up = up << 8;

	up = up | i2c_read(PRESSURE_ADDR, 0xF7);	//up = (MSB<<16 + LSB<<8 + XLSB(NOT USED)) >> (8-oss)

	//calculate true temperature

	x1 = ((ut - ac6) * ac5) >> 15;

	x2 = (mc << 11) / (x1 + md);

	b5 = x1 + x2;

	trueTemp = (b5 + 8) >> 4;

	//calculate b3

	b6 = b5 - 4000;

	x1 = (b2 * (b6 * b6) >> 12) >> 11;

	x2 = (ac2 * b6) >> 11;

	x3 = x1 + x2;

	b3 = ((ac1 * 4 + x3) + 2) / 4;

	//calculate b4

	x1 = (ac3 * b6) >> 16;

	x2 = (b1 * ((b6 * b6) >> 12)) >> 16;

	x3 = ((x1 + x2) + 2) >> 2;

	b4 = (ac4 * (x3 + 32768)) >> 15;

	b7 = (up - b3) * 50000;

	if (b7 < 0x80000000)

	{

		pressure = (b7 << 1) / b4;

	}

	else

	{

		pressure = (b7 / b4) << 1;

	}

	x1 = (pressure >> 8) * (pressure >> 8);

	x1 = (x1 * 3038) >> 16;

	x2 = (-7357 * pressure) >> 16;

	pressure += (x1 + x2 + 3791) >> 4;				//This is the final value for our pressure

}

void sensors_readHumid()

{

	humid = i2c_read16(HUMID_ADDR);

	//calculations to relative humidity: humid = (humid/((2^14) - 1))*100%       >> is divide by power, << is multiply by power, 2^14-1 = 16383

	humid = (humid / 16383) * 100;

 void modules_sensors_setup()

 {

	DESELECT_TEMP;

	setup_spi();

	sensors_setupPressure();

 }

 void modules_geiger_setup()

 {

	// Pin setup

	DDRA &= ~(1 << DDA0);	// PA0 is an input

	// Setup for interrupt input on PA0 (PCINT0)

	PCMSK0 |= (1 << PCINT0);	// Enable interrupt for PA0

	PCICR |= (1 << PCIE0);		// Enable ioc section PCIF0

	// 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(250);			// 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

	sei();					// Enable all interrupts

 }

 void modules_cameras_setup()

 {

 }

 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_readHumid();				//Data Read

	sensors_readBatt();

 }

 void modules_geiger()

 {

	// No data gatering function needed for geiger daughter board

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

 }

 void modules_cameras()

 {

	// Gathers data and performs functions for cameras daughter board

 } 

void micro_setup()

{

	// Generic microcontroller config options

	sei();	// Enable interrupts

}

int main(void)

{

	// Initialize		

	micro_setup();			// Generic microcontroller config options

	time_setup();			// Setup loop timer and interrupts (TIMER0)

	led_configure();		// Configure ports and registers for LED operation

	io_configure();			// Configure IO ports and registers

	i2c_init();				// Setup I2C

	serial0_setup();		// Config serial port

	io_readModuleId();

	modules_setup(io_getModuleId());				// Run setup functions for specific module

	//uint8_t test;		//Debug

	//uint8_t test2;	//Debug	

	// Serial output //DEBUG

	char buff[64];							//Buffer for serial output //DEBUG

	serial0_sendString("Starting Slave\r\n");

    while(1)

    {	

		// Master communication

		masterComm_checkParser();

		// Main slave operations

		if ((time_millis() % SENSOR_LOOP) == 0)	// Uses program timer to run every so often. Time interval defined in config.h

		{

			led_on(0);

			sensors_readBoardTemp();	// Read board temperature sensor (Common on all slaves) (Data Read)

			modules_run(io_getModuleId());		// Runs specific module functions (like data reading)

			io_regulateTemp();			// Gets board temperature and enables heater if below threshold

			_delay_ms(2);		// Delay to prevent the sensor loop from running again before time_millis changes

			led_off(0);

			led_off(2);

		}

    }

	return 0;

}

		/********Examples of data reading and getting******************

		x = geiger_getCpm();				//Data get

		x = sensors_getSpiTemp();			//Data get

		x = sensors_getBoardTemp();			//Data get

		sensors_readSpiTemp();				//Data Read

		sensors_readBoardTemp();			//Data Read

		led_output(0xFF);					//Output value to LED array

		i2c_write(RTC_ADDR, 0x05, 0x3A);	//i2c Write Example

		PORTA &= ~(1 << PA1);	//OFF

		PORTA |= (1 << PA1);	//ON

		PORTB ^= (1 << PB0);	//Toggle

		sprintf(buff, "log: %u,%u,%u,%u\r\n", temp,temp2,temp3,temp4);

		serial0_sendString(buff);

		**************************************************************/