libosmocore/include/osmocom/core/prbs.h

26 lines
797 B
C

#pragma once
#include <stdint.h>
#include <osmocom/core/bits.h>
/*! \brief definition of a PRBS sequence */
struct osmo_prbs {
const char *name; /*!< human-readable name */
unsigned int len; /*!< length in bits */
uint64_t coeff; /*!< coefficients */
};
/*! \brief state of a given PRBS sequence generator */
struct osmo_prbs_state {
const struct osmo_prbs *prbs;
uint64_t state;
};
extern const struct osmo_prbs osmo_prbs7;
extern const struct osmo_prbs osmo_prbs9;
extern const struct osmo_prbs osmo_prbs11;
extern const struct osmo_prbs osmo_prbs15;
void osmo_prbs_state_init(struct osmo_prbs_state *st, const struct osmo_prbs *prbs);
ubit_t osmo_prbs_get_ubit(struct osmo_prbs_state *state);
int osmo_prbs_get_ubits(ubit_t *out, unsigned int out_len, struct osmo_prbs_state *state);