mirror of https://gerrit.osmocom.org/libosmocore
48 lines
1.6 KiB
Smarty
48 lines
1.6 KiB
Smarty
/*! \file crcXXgen.h
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* Osmocom generic CRC routines (for max XX bits poly) header. */
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/*
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* Copyright (C) 2011 Sylvain Munaut <tnt@246tNt.com>
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*
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* All Rights Reserved
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#pragma once
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/*! \addtogroup crc
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* @{
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* \file crcXXgen.h.tpl */
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#include <stdint.h>
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#include <osmocom/core/bits.h>
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/*! structure describing a given CRC code of max XX bits */
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struct osmo_crcXXgen_code {
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int bits; /*!< Actual number of bits of the CRC */
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uintXX_t poly; /*!< Polynom (normal representation, MSB omitted */
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uintXX_t init; /*!< Initialization value of the CRC state */
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uintXX_t remainder; /*!< Remainder of the CRC (final XOR) */
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};
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uintXX_t osmo_crcXXgen_compute_bits(const struct osmo_crcXXgen_code *code,
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const ubit_t *in, int len);
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int osmo_crcXXgen_check_bits(const struct osmo_crcXXgen_code *code,
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const ubit_t *in, int len, const ubit_t *crc_bits);
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void osmo_crcXXgen_set_bits(const struct osmo_crcXXgen_code *code,
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const ubit_t *in, int len, ubit_t *crc_bits);
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/*! @} */
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/* vim: set syntax=c: */
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