| #pragma once |
| /* |
| * (C) 2013 by Andreas Eversberg <jolly@eversberg.eu> |
| * (C) 2015 by Alexander Chemeris <Alexander.Chemeris@fairwaves.co> |
| * (C) 2016 by Tom Tsou <tom.tsou@ettus.com> |
| * (C) 2017 by Harald Welte <laforge@gnumonks.org> |
| * (C) 2022 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> / Eric Wild <ewild@sysmocom.de> |
| * |
| * 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. |
| */ |
| |
| #include <osmocom/core/bits.h> |
| |
| struct sch_info { |
| int bsic; |
| int t1; |
| int t2; |
| int t3p; |
| }; |
| |
| #define GSM_SCH_INFO_LEN 25 |
| #define GSM_SCH_UNCODED_LEN 35 |
| #define GSM_SCH_CODED_LEN 78 |
| |
| int gsm_sch_decode(uint8_t *sb_info, sbit_t *burst); |
| int gsm_sch_parse(const uint8_t *sb_info, struct sch_info *desc); |
| int gsm_sch_to_fn(struct sch_info *sch); |
| int gsm_sch_check_fn(int fn); |
| int gsm_fcch_check_fn(int fn); |
| int gsm_fcch_check_ts(int ts, int fn); |
| int gsm_sch_check_ts(int ts, int fn); |
| |
| double gsm_fcch_offset(float *burst, int len); |
| |
| int float_to_sbit(const float *in, sbit_t *out, float scale, int len); |
| |