#ifndef	_CONFIG_H
#define	_CONFIG_H

#include	"arduino.h"

//RS485 Interface pins
#define RX_ENABLE_PIN DIO4
#define TX_ENABLE_PIN AIO2

// Control pins for the A3949 chips
#define H1D DIO7
#define H1E DIO5
#define H2D DIO8
#define H2E DIO6

// PWM versions of the enable_pins
#define H1E_PWM OCR0B
#define H2E_PWM OCR0A

//Step/Dir Pins from motherboard to extruder 
//IMPORTANT: Assumes that the step pin is on PCIE0
#define E_STEP_PIN DIO10
#define E_DIR_PIN DIO9

//Trimpot is on AIO0, pin 23
#define TRIM_POT AIO0
#define TRIM_POT_CHANNEL 0

//Read analog voltage from thermistor
#define TEMP_PIN AIO3
#define TEMP_PIN_CHANNEL 3

#define	REFERENCE	REFERENCE_AVCC

#define ANALOG_MASK	(MASK(TRIM_POT_CHANNEL) | MASK(TEMP_PIN_CHANNEL))

#define	TEMP_THERMISTOR

// extruder settings
#define	TEMP_HYSTERESIS				20
#define	TEMP_RESIDENCY_TIME		60

#define	NUM_TEMP_SENSORS	1
#ifdef	TEMP_C
/***************************************************************************\
*                                                                           *
* Fill in the following struct according to your hardware                   *
*                                                                           *
* If your temperature sensor has no associated heater, enter '255' as the   *
*   heater index.                                                           *
*                                                                           *
* for GEN3 set temp_type to TT_INTERCOM, temp_pin to 0 and heater index to  *
*   255                                                                     *
*                                                                           *
\***************************************************************************/

struct {
	uint8_t						temp_type;
	uint8_t						temp_pin;

	uint8_t						heater_index;
} temp_sensors[NUM_TEMP_SENSORS] =
{
	{
		TT_THERMISTOR,
		PINC3,
		0
	}
};
#endif

// list of PWM-able pins and corresponding timers
// timer1 is used for step timing so don't use OC1A/OC1B (DIO9/DIO10)
// OC0A												DIO6
// OC0B												DIO5
// OC1A												DIO9
// OC1B												DIO10
// OC2A												DIO11
// OC2B												DIO3

#define	TH_COUNT					8
#define	PID_SCALE					1024L

#define	NUM_HEATERS				2
#ifdef	HEATER_C
/***************************************************************************\
*                                                                           *
* Fill in the following struct according to your hardware                   *
*                                                                           *
* For the atmega168/328, timer/pin mappings are as follows                  *
*                                                                           *
* OCR0A - PD6                                                               *
* OCR0B - PD5                                                               *
* OCR2A - PB3                                                               *
* OCR2B - PD3                                                               *
*                                                                           *
\***************************************************************************/
struct {
	volatile uint8_t	*heater_port;
	uint8_t						heater_pin;
	volatile uint8_t	*heater_pwm;
} heaters[NUM_HEATERS] =
{
	{
		&PORTD,
		PIND6,
		&OCR0A
	},
	{
		&PORTB,
		PINB4,
		0
	}
};
#endif

// #define	HEATER_PIN						DIO11
// #define	HEATER_PWM						OCR2A
// 
// #define BED_PIN								DIO12

/*
	Intercom
*/
#define enable_transmit()			do { WRITE(TX_ENABLE_PIN,1);  WRITE(RX_ENABLE_PIN,0); } while(0)
#define disable_transmit()			do { WRITE(TX_ENABLE_PIN,0);  WRITE(RX_ENABLE_PIN,0); } while(0)

/*
	Motors
*/

#define enable_motors()				do { TCCR0A |= MASK(COM0A1) | MASK(COM0B1); } while (0)
#define disable_motors()			do { TCCR0A &= ~MASK(COM0A1) & ~MASK(COM0B1); } while (0)

/*
	Heater
*/

// #ifdef	HEATER_PWM
// 	#define	enable_heater()			do { TCCR2A |=  MASK(COM2A1); } while (0)
// 	#define	disable_heater()		do { TCCR2A &= ~MASK(COM2A1); } while (0)
// #else
// 	#define	enable_heater()			WRITE(HEATER_PIN, 1)
// 	#define	disable_heater()		WRITE(HEATER_PIN, 0)
// #endif

#endif	/* _CONFIG_H */