include/osmocom/coding/gsm0503_coding.h

#pragma once

#include <stdint.h>
#include <osmocom/core/bits.h>

#define GSM0503_GPRS_BURSTS_NBITS	(116 * 4)
#define GSM0503_EGPRS_BURSTS_NBITS	(348 * 4)
#define NUM_BYTES(N) ((N + 8 - 1) / 8)

enum gsm0503_egprs_mcs {
	EGPRS_MCS0,
	EGPRS_MCS1,
	EGPRS_MCS2,
	EGPRS_MCS3,
	EGPRS_MCS4,
	EGPRS_MCS5,
	EGPRS_MCS6,
	EGPRS_MCS7,
	EGPRS_MCS8,
	EGPRS_MCS9,
	EGPRS_NUM_MCS,
};

int gsm0503_xcch_encode(ubit_t *bursts, const uint8_t *l2_data);
int gsm0503_xcch_decode(uint8_t *l2_data, const sbit_t *bursts,
	int *n_errors, int *n_bits_total);

int gsm0503_pdtch_encode(ubit_t *bursts, const uint8_t *l2_data, uint8_t l2_len);
int gsm0503_pdtch_decode(uint8_t *l2_data, const sbit_t *bursts, uint8_t *usf_p,
	int *n_errors, int *n_bits_total);

int gsm0503_pdtch_egprs_encode(ubit_t *bursts, const uint8_t *l2_data,
	uint8_t l2_len);
int gsm0503_pdtch_egprs_decode(uint8_t *l2_data, const sbit_t *bursts,
	uint16_t nbits, uint8_t *usf_p, int *n_errors, int *n_bits_total);

int gsm0503_tch_fr_encode(ubit_t *bursts, const uint8_t *tch_data, int len,
	int net_order);
int gsm0503_tch_fr_decode(uint8_t *tch_data, const sbit_t *bursts, int net_order,
	int efr, int *n_errors, int *n_bits_total);

int gsm0503_tch_hr_encode(ubit_t *bursts, const uint8_t *tch_data, int len);
int gsm0503_tch_hr_decode(uint8_t *tch_data, const sbit_t *bursts, int odd,
	int *n_errors, int *n_bits_total);

int gsm0503_tch_afs_encode(ubit_t *bursts, const uint8_t *tch_data, int len,
	int codec_mode_req, uint8_t *codec, int codecs, uint8_t ft,
	uint8_t cmr);
int gsm0503_tch_afs_decode(uint8_t *tch_data, const sbit_t *bursts,
	int codec_mode_req, uint8_t *codec, int codecs, uint8_t *ft,
	uint8_t *cmr, int *n_errors, int *n_bits_total);

int gsm0503_tch_ahs_encode(ubit_t *bursts, const uint8_t *tch_data, int len,
	int codec_mode_req, uint8_t *codec, int codecs, uint8_t ft, uint8_t cmr);
int gsm0503_tch_ahs_decode(uint8_t *tch_data, const sbit_t *bursts, int odd,
	int codec_mode_req, uint8_t *codec, int codecs, uint8_t *ft,
	uint8_t *cmr, int *n_errors, int *n_bits_total);

int gsm0503_rach_encode(ubit_t *burst, const uint8_t *ra, uint8_t bsic);
int gsm0503_rach_decode(uint8_t *ra, const sbit_t *burst, uint8_t bsic);

int gsm0503_sch_encode(ubit_t *burst, const uint8_t *sb_info);
int gsm0503_sch_decode(uint8_t *sb_info, const sbit_t *burst);