160 lines
4.0 KiB
C++
160 lines
4.0 KiB
C++
/* -*- c++ -*- */
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/*
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* @file
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* @author (C) 2009-2017 by Piotr Krysik <ptrkrysik@gmail.com>
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* @section LICENSE
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*
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* Gr-gsm is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3, or (at your option)
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* any later version.
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*
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* Gr-gsm 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 General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with gr-gsm; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef INCLUDED_GSM_RECEIVER_CONFIG_H
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#define INCLUDED_GSM_RECEIVER_CONFIG_H
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#include <vector>
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#include <algorithm>
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#include <stdint.h>
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#include <grgsm/gsm_constants.h>
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class multiframe_configuration
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{
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private:
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multiframe_type d_type;
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std::vector<burst_type> d_burst_types;
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public:
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multiframe_configuration() {
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d_type = unknown;
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fill(d_burst_types.begin(), d_burst_types.end(), empty);
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}
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~multiframe_configuration() {}
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void set_type(multiframe_type type) {
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if (type == multiframe_26) {
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d_burst_types.resize(26);
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} else {
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d_burst_types.resize(51);
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}
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d_type = type;
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}
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void set_burst_type(int nr, burst_type type) {
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d_burst_types[nr] = type;
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}
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multiframe_type get_type() {
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return d_type;
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}
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burst_type get_burst_type(int nr) {
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return d_burst_types[nr];
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}
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};
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class burst_counter
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{
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private:
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const int d_OSR;
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uint32_t d_t1, d_t2, d_t3, d_timeslot_nr;
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double d_offset_fractional;
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double d_offset_integer;
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public:
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burst_counter(int osr):
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d_OSR(osr),
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d_t1(0),
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d_t2(0),
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d_t3(0),
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d_timeslot_nr(0),
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d_offset_fractional(0.0),
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d_offset_integer(0.0) {
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}
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burst_counter(int osr, uint32_t t1, uint32_t t2, uint32_t t3, uint32_t timeslot_nr):
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d_OSR(osr),
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d_t1(t1),
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d_t2(t2),
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d_t3(t3),
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d_timeslot_nr(timeslot_nr),
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d_offset_fractional(0.0),
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d_offset_integer(0.0)
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{
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d_offset_integer = 0;
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d_offset_fractional = 0;
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}
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burst_counter & operator++(int);
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burst_counter subtract_timeslots(unsigned int number_of_timeslots);
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void set(uint32_t t1, uint32_t t2, uint32_t t3, uint32_t timeslot_nr);
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uint32_t get_t1() {
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return d_t1;
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}
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uint32_t get_t2() {
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return d_t2;
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}
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uint32_t get_t3() {
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return d_t3;
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}
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uint32_t get_timeslot_nr() {
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return d_timeslot_nr;
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}
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uint32_t get_frame_nr() {
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return (51 * 26 * d_t1) + (51 * (((d_t3 + 26) - d_t2) % 26)) + d_t3;
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}
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uint32_t get_frame_nr_mod() {
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return (d_t1 << 11) + (d_t3 << 5) + d_t2;
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}
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unsigned get_offset() {
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return (unsigned)d_offset_integer;
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}
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};
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class channel_configuration
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{
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private:
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multiframe_configuration d_timeslots_descriptions[TS_PER_FRAME];
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public:
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channel_configuration() {
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for (int i = 0; i < TS_PER_FRAME; i++) {
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d_timeslots_descriptions[i].set_type(unknown);
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}
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}
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void set_multiframe_type(int timeslot_nr, multiframe_type type) {
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d_timeslots_descriptions[timeslot_nr].set_type(type);
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}
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void set_burst_types(int timeslot_nr, const unsigned mapping[], unsigned mapping_size, burst_type b_type) {
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unsigned i;
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for (i = 0; i < mapping_size; i++) {
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d_timeslots_descriptions[timeslot_nr].set_burst_type(mapping[i], b_type);
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}
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}
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void set_single_burst_type(int timeslot_nr, int burst_nr, burst_type b_type) {
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d_timeslots_descriptions[timeslot_nr].set_burst_type(burst_nr, b_type);
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}
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burst_type get_burst_type(burst_counter burst_nr);
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};
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#endif /* INCLUDED_GSM_RECEIVER_CONFIG_H */
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