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/*! \file gsm0502.c
* Paging helper code */
/*
* (C) 2009 by Holger Hans Peter Freyther <zecke@selfish.org>
* All Rights Reserved
*
* SPDX-License-Identifier: GPL-2.0+
*
* 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, see <http://www.gnu.org/licenses/>.
*
*/
#include <stdint.h>
#include <osmocom/gsm/protocol/gsm_04_08.h>
#include <osmocom/gsm/gsm0502.h>
#include <osmocom/gsm/gsm48.h>
#include <osmocom/gsm/rsl.h>
unsigned int
gsm0502_calc_paging_group(struct gsm48_control_channel_descr *chan_desc, uint64_t imsi)
{
int ccch_conf;
int bs_cc_chans;
int blocks;
unsigned int group;
ccch_conf = chan_desc->ccch_conf;
bs_cc_chans = rsl_ccch_conf_to_bs_cc_chans(ccch_conf);
/* code word + 2, as 2 channels equals 0x0 */
blocks = gsm48_number_of_paging_subchannels(chan_desc);
group = gsm0502_get_paging_group(imsi, bs_cc_chans, blocks);
return group;
}
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