/* 
 * File:   modulator.h
 */

#ifndef MODULATOR_H
#define	MODULATOR_H

#ifdef __XC16
#include <dsp.h>
#else
typedef int16_t fractional;
#define _Q15 _Q15sinPI(_Q15);
#endif

#include <stdint.h>
#include "modem.h"

typedef struct {
    fractional increment;
    fractional offset;
    fractional gain;
} rotor_symbol;

extern rotor_symbol rotor_constellation[MAX_MODULATION_ALPHABET_SIZE];
extern rotor_symbol silence;

// buffer dei simboli
extern uint8_t tx_symbol_buffer[MAX_SYMBOL_BUFFER_SIZE];
extern uint8_t tx_symbol_buffer_index, tx_symbol_buffer_lenght;

// protoz
void modulator_setup(void);
void modulator_generate_sample_buffer(fractional *Q_buffer, fractional *I_buffer, uint8_t size, rotor_symbol symbol);
void modulator_prepare_constellation_symbols(symbol *constellation, rotor_symbol *mod_constellation);
void set_GPIO_bit(uint8_t symbol);

#endif	/* MODULATOR_H */