/* * crc8gen.h * * Copyright (C) 2011 Sylvain Munaut * * All Rights Reserved * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef __OSMO_CRC8GEN_H__ #define __OSMO_CRC8GEN_H__ /*! \addtogroup crcgen * @{ */ /*! \file crc8gen.h * \file Osmocom generic CRC routines (for max 8 bits poly) header */ #include #include /*! \brief structure describing a given CRC code of max 8 bits */ struct osmo_crc8gen_code { int bits; /*!< \brief Actual number of bits of the CRC */ uint8_t poly; /*!< \brief Polynom (normal representation, MSB omitted */ uint8_t init; /*!< \brief Initialization value of the CRC state */ uint8_t remainder; /*!< \brief Remainder of the CRC (final XOR) */ }; uint8_t osmo_crc8gen_compute_bits(const struct osmo_crc8gen_code *code, const ubit_t *in, int len); int osmo_crc8gen_check_bits(const struct osmo_crc8gen_code *code, const ubit_t *in, int len, const ubit_t *crc_bits); void osmo_crc8gen_set_bits(const struct osmo_crc8gen_code *code, const ubit_t *in, int len, ubit_t *crc_bits); /*! }@ */ #endif /* __OSMO_CRC8GEN_H__ */ /* vim: set syntax=c: */