62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
/* GMR-1 interleaving */
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/* See GMR-1 05.003 (ETSI TS 101 376-5-3 V1.2.1) - Section 4.8 */
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/* (C) 2011-2019 by Sylvain Munaut <tnt@246tNt.com>
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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 Affero General Public License as published by
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* the Free Software Foundation; either version 3 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 Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __OSMO_GMR1_L1_INTERLEAVE_H__
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#define __OSMO_GMR1_L1_INTERLEAVE_H__
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/*! \defgroup interleave Interleaving
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* \ingroup l1_prim
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* @{
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*/
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/*! \file l1/interleave.h
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* \brief Osmocom GMR-1 interleaving header
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*/
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/* Intra burst interleaving */
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void gmr1_interleave_intra(void *out, const void *in, int N);
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void gmr1_deinterleave_intra(void *out, const void *in, int N);
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/* Inter burst interleaving */
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/*! \brief GMR1 inter-burst (de)interleaver state */
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struct gmr1_interleaver
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{
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int N; /*!< \brief Interleaver depth */
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int K; /*!< \brief Interleaver width */
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int n; /*!< \brief Current burst number */
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uint8_t *bits_cpp; /*!< \brief c'' bit state storage */
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};
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int gmr1_interleaver_init(struct gmr1_interleaver *il, int N, int K);
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void gmr1_interleaver_fini(struct gmr1_interleaver *il);
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void gmr1_interleave_inter(struct gmr1_interleaver *il,
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void *bits_epp, void *bits_ep);
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void gmr1_deinterleave_inter(struct gmr1_interleaver *il,
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void *bits_ep, void *bits_epp);
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/*! @} */
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#endif /* __OSMO_GMR1_L1_INTERLEAVE_H__ */
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