#include <stdint.h>

#include "../../modem/modem.h"

#include "../phy.h"
#include "arphy.h"

interleaver_params interleaver;

void arphy_set_up_interleaver(interleaver_params* interleaver_parameters) {
    interleaver_parameters->net_bit_size = PHY_MAX_BLOCK_SIZE * 8; // interlaccia sempre su una pdu
    interleaver_parameters->fec_blocks_size = interleaver_parameters->net_bit_size / fec.in_bit_size;
    interleaver_parameters->symbols_size = fec.out_symbols_size * interleaver_parameters->fec_blocks_size;
    interleaver_parameters->size = (interleaver_parameters->fec_blocks_size * fec.out_bit_size); // dimensione del blocco di interleaving
}

// interleaving degli indici

// torna indice mappato

uint16_t arphy_index_interleave(uint16_t in, uint8_t x, uint16_t y) {
    uint16_t out;
    out = in * (x + 1);
    out = out % (x * y);
    return out;
}

// torna indice de-mappato

uint16_t arphy_index_deinterleave(uint16_t in, uint8_t x, uint16_t y) {
    uint16_t out;
    out = in + (in * x);
    out = out % (x * y);
    return out;
}