1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 * Copyright (C) 2020 BAIKAL ELECTRONICS, JSC
 4 */
 5
 6#ifndef _POLYNOMIAL_H
 7#define _POLYNOMIAL_H
 8
 9/*
10 * struct polynomial_term - one term descriptor of a polynomial
11 * @deg: degree of the term.
12 * @coef: multiplication factor of the term.
13 * @divider: distributed divider per each degree.
14 * @divider_leftover: divider leftover, which couldn't be redistributed.
15 */
16struct polynomial_term {
17	unsigned int deg;
18	long coef;
19	long divider;
20	long divider_leftover;
21};
22
23/*
24 * struct polynomial - a polynomial descriptor
25 * @total_divider: total data divider.
26 * @terms: polynomial terms, last term must have degree of 0
27 */
28struct polynomial {
29	long total_divider;
30	struct polynomial_term terms[];
31};
32
33long polynomial_calc(const struct polynomial *poly, long data);
34
35#endif