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/* GMR-1 CRC */
/* See GMR-1 05.003 (ETSI TS 101 376-5-3 V1.2.1) - Section 4.3 */
/* (C) 2011-2016 by 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 Affero General Public License as published by
* the Free Software Foundation; either version 3 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/*! \addtogroup crc
* @{
*/
/*! \file l1/crc.c
* \brief Osmocom GMR-1 CRC implementation
*/
#include <stdint.h>
#include <osmocom/core/bits.h>
#include <osmocom/core/crcgen.h>
/*! \brief GMR-1 CRC8
* g8(D) = D8 + D7 + D4 + D3 + D + 1
*/
const struct osmo_crc8gen_code gmr1_crc8 = {
.bits = 8,
.poly = 0x9b,
.init = 0x00,
.remainder = 0x00,
};
/*! \brief GMR-1 CRC12
* g12(D) = D12 + D11 + D3 + D2 + D + 1
*/
const struct osmo_crc16gen_code gmr1_crc12 = {
.bits = 12,
.poly = 0x80f,
.init = 0x0000,
.remainder = 0x0000,
};
/*! \brief GMR-1 CRC16
* g16(D) = D16 + D12 + D5 + 1
*/
const struct osmo_crc16gen_code gmr1_crc16 = {
.bits = 16,
.poly = 0x1021,
.init = 0x0000,
.remainder = 0x0000,
};
/*! @} */
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