GNU Radio's GSM Package: receiver_config.h Source File

GNU Radio's GSM Package

receiver_config.h
Go to the documentation of this file.
1 /* -*- c++ -*- */
2 /*
3 * @file
4 * @author (C) 2009-2017 by Piotr Krysik <ptrkrysik@gmail.com>
5 * @section LICENSE
6 *
7 * Gr-gsm is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 3, or (at your option)
10 * any later version.
11 *
12 * Gr-gsm is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with gr-gsm; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
21 */
22 #ifndef INCLUDED_GSM_RECEIVER_CONFIG_H
23 #define INCLUDED_GSM_RECEIVER_CONFIG_H
24
25 #include <vector>
26 #include <algorithm>
27 #include <math.h>
28 #include <stdint.h>
29 #include <gsm_constants.h>
30
31 class multiframe_configuration
32 {
33 private:
34 multiframe_type d_type;
35 std::vector<burst_type> d_burst_types;
36 public:
37 multiframe_configuration() {
38 d_type = unknown;
39 fill(d_burst_types.begin(), d_burst_types.end(), empty);
40 }
41
42 ~multiframe_configuration() {}
43
44 void set_type(multiframe_type type) {
45 if (type == multiframe_26) {
46 d_burst_types.resize(26);
47 } else {
48 d_burst_types.resize(51);
49 }
50
51 d_type = type;
52 }
53
54 void set_burst_type(int nr, burst_type type) {
55 d_burst_types[nr] = type;
56 }
57
58 multiframe_type get_type() {
59 return d_type;
60 }
61
62 burst_type get_burst_type(int nr) {
63 return d_burst_types[nr];
64 }
65 };
66
67 class burst_counter
68 {
69 private:
70 const int d_OSR;
71 uint32_t d_t1, d_t2, d_t3, d_timeslot_nr;
72 double d_offset_fractional;
73 double d_offset_integer;
74 public:
75 burst_counter(int osr):
76 d_OSR(osr),
77 d_t1(0),
78 d_t2(0),
79 d_t3(0),
80 d_timeslot_nr(0),
81 d_offset_fractional(0.0),
82 d_offset_integer(0.0) {
83 }
84
85 burst_counter(int osr, uint32_t t1, uint32_t t2, uint32_t t3, uint32_t timeslot_nr):
86 d_OSR(osr),
87 d_t1(t1),
88 d_t2(t2),
89 d_t3(t3),
90 d_timeslot_nr(timeslot_nr),
91 d_offset_fractional(0.0),
92 d_offset_integer(0.0)
93 {
94 d_offset_integer = 0;
95 d_offset_fractional = 0;
96 }
97
98 burst_counter & operator++(int);
99 burst_counter subtract_timeslots(unsigned int number_of_timeslots);
100 void set(uint32_t t1, uint32_t t2, uint32_t t3, uint32_t timeslot_nr);
101
102 uint32_t get_t1() {
103 return d_t1;
104 }
105
106 uint32_t get_t2() {
107 return d_t2;
108 }
109
110 uint32_t get_t3() {
111 return d_t3;
112 }
113
114 uint32_t get_timeslot_nr() {
115 return d_timeslot_nr;
116 }
117
118 uint32_t get_frame_nr() {
119 return (51 * 26 * d_t1) + (51 * (((d_t3 + 26) - d_t2) % 26)) + d_t3;
120 }
121
122 uint32_t get_frame_nr_mod() {
123 return (d_t1 << 11) + (d_t3 << 5) + d_t2;
124 }
125
126 unsigned get_offset() {
127 return (unsigned)d_offset_integer;
128 }
129 };
130
131 class channel_configuration
132 {
133 private:
134 multiframe_configuration d_timeslots_descriptions[TS_PER_FRAME];
135 public:
136 channel_configuration() {
137 for (int i = 0; i < TS_PER_FRAME; i++) {
138 d_timeslots_descriptions[i].set_type(unknown);
139 }
140 }
141
142 void set_multiframe_type(int timeslot_nr, multiframe_type type) {
143 d_timeslots_descriptions[timeslot_nr].set_type(type);
144 }
145
146 void set_burst_types(int timeslot_nr, const unsigned mapping[], unsigned mapping_size, burst_type b_type) {
147 unsigned i;
148 for (i = 0; i < mapping_size; i++) {
149 d_timeslots_descriptions[timeslot_nr].set_burst_type(mapping[i], b_type);
150 }
151 }
152
153 void set_single_burst_type(int timeslot_nr, int burst_nr, burst_type b_type) {
154 d_timeslots_descriptions[timeslot_nr].set_burst_type(burst_nr, b_type);
155 }
156
157 burst_type get_burst_type(burst_counter burst_nr);
158 };
159
160 #endif /* INCLUDED_GSM_RECEIVER_CONFIG_H */
burst_counter::get_t2
uint32_t get_t2()
Definition: receiver_config.h:106
burst_counter::get_t3
uint32_t get_t3()
Definition: receiver_config.h:110
burst_counter::burst_counter
burst_counter(int osr)
Definition: receiver_config.h:75
channel_configuration::set_multiframe_type
void set_multiframe_type(int timeslot_nr, multiframe_type type)
Definition: receiver_config.h:142
channel_configuration
Definition: receiver_config.h:131
multiframe_26
Definition: gsm_constants.h:63
channel_configuration::set_single_burst_type
void set_single_burst_type(int timeslot_nr, int burst_nr, burst_type b_type)
Definition: receiver_config.h:153
burst_counter::get_frame_nr
uint32_t get_frame_nr()
Definition: receiver_config.h:118
burst_counter::burst_counter
burst_counter(int osr, uint32_t t1, uint32_t t2, uint32_t t3, uint32_t timeslot_nr)
Definition: receiver_config.h:85
multiframe_configuration
Definition: receiver_config.h:31
burst_counter::get_timeslot_nr
uint32_t get_timeslot_nr()
Definition: receiver_config.h:114
channel_configuration::set_burst_types
void set_burst_types(int timeslot_nr, const unsigned mapping[], unsigned mapping_size, burst_type b_type)
Definition: receiver_config.h:146
burst_counter::get_offset
unsigned get_offset()
Definition: receiver_config.h:126
burst_type
burst_type
Definition: gsm_constants.h:62
gsm_constants.h
multiframe_configuration::~multiframe_configuration
~multiframe_configuration()
Definition: receiver_config.h:42
multiframe_configuration::get_type
multiframe_type get_type()
Definition: receiver_config.h:58
TS_PER_FRAME
#define TS_PER_FRAME
Definition: gsm_constants.h:45
channel_configuration::channel_configuration
channel_configuration()
Definition: receiver_config.h:136
multiframe_configuration::get_burst_type
burst_type get_burst_type(int nr)
Definition: receiver_config.h:62
burst_counter::get_t1
uint32_t get_t1()
Definition: receiver_config.h:102
empty
Definition: gsm_constants.h:62
multiframe_configuration::multiframe_configuration
multiframe_configuration()
Definition: receiver_config.h:37
multiframe_type
multiframe_type
Definition: gsm_constants.h:63
type
uint8_t type
Definition: gsmtap.h:54
multiframe_configuration::set_burst_type
void set_burst_type(int nr, burst_type type)
Definition: receiver_config.h:54
burst_counter::get_frame_nr_mod
uint32_t get_frame_nr_mod()
Definition: receiver_config.h:122
burst_counter
Definition: receiver_config.h:67
unknown
Definition: gsm_constants.h:63
multiframe_configuration::set_type
void set_type(multiframe_type type)
Definition: receiver_config.h:44