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cd705ea8 MW |
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 | */ | |
16 | struct 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 | */ | |
28 | struct polynomial { | |
29 | long total_divider; | |
30 | struct polynomial_term terms[]; | |
31 | }; | |
32 | ||
33 | long polynomial_calc(const struct polynomial *poly, long data); | |
34 | ||
35 | #endif |