| /*! \file crcXXgen.h |
| * Osmocom generic CRC routines (for max XX bits poly) header. */ |
| /* |
| * Copyright (C) 2011 Sylvain Munaut <tnt@246tNt.com> |
| * |
| * 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. |
| */ |
| |
| #pragma once |
| |
| /*! \addtogroup crcgen |
| * @{ |
| * \file crcXXgen.h.tpl */ |
| |
| #include <stdint.h> |
| #include <osmocom/core/bits.h> |
| |
| |
| /*! structure describing a given CRC code of max XX bits */ |
| struct osmo_crcXXgen_code { |
| int bits; /*!< Actual number of bits of the CRC */ |
| uintXX_t poly; /*!< Polynom (normal representation, MSB omitted */ |
| uintXX_t init; /*!< Initialization value of the CRC state */ |
| uintXX_t remainder; /*!< Remainder of the CRC (final XOR) */ |
| }; |
| |
| uintXX_t osmo_crcXXgen_compute_bits(const struct osmo_crcXXgen_code *code, |
| const ubit_t *in, int len); |
| int osmo_crcXXgen_check_bits(const struct osmo_crcXXgen_code *code, |
| const ubit_t *in, int len, const ubit_t *crc_bits); |
| void osmo_crcXXgen_set_bits(const struct osmo_crcXXgen_code *code, |
| const ubit_t *in, int len, ubit_t *crc_bits); |
| |
| |
| /*! @} */ |
| |
| /* vim: set syntax=c: */ |