-
-
Notifications
You must be signed in to change notification settings - Fork 512
/
ais_app.cpp
474 lines (393 loc) · 13.7 KB
/
ais_app.cpp
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
/*
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
*
* This file is part of PortaPack.
*
* 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, 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; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include "ais_app.hpp"
#include "string_format.hpp"
#include "database.hpp"
#include "baseband_api.hpp"
#include "portapack.hpp"
using namespace portapack;
#include <algorithm>
namespace ais {
namespace format {
static std::string latlon_abs_normalized(const int32_t normalized, const char suffixes[2]) {
const auto suffix = suffixes[(normalized < 0) ? 0 : 1];
const uint32_t normalized_abs = std::abs(normalized);
const uint32_t t = (normalized_abs * 5) / 3;
const uint32_t degrees = t / (100 * 10000);
const uint32_t fraction = t % (100 * 10000);
return to_string_dec_uint(degrees) + "." + to_string_dec_uint(fraction, 6, '0') + suffix;
}
static std::string latlon(const Latitude latitude, const Longitude longitude) {
if( latitude.is_valid() && longitude.is_valid() ) {
return latlon_abs_normalized(latitude.normalized(), "SN") + " " + latlon_abs_normalized(longitude.normalized(), "WE");
} else if( latitude.is_not_available() && longitude.is_not_available() ) {
return "not available";
} else {
return "invalid";
}
}
static float latlon_float(const int32_t normalized) {
return ((((float) normalized) * 5) / 3) / (100 * 10000);
}
static std::string mmsi(
const ais::MMSI& mmsi
) {
return to_string_dec_uint(mmsi, 9, '0'); // MMSI is always is always 9 characters pre-padded with zeros
}
static std::string mid(
const ais::MMSI& mmsi
) {
std::database db;
std::string mid_code = "";
std::database::MidDBRecord mid_record = {};
int return_code = 0;
// Try getting the country name from mids.db using MID code for given MMSI
mid_code = to_string_dec_uint(mmsi, 9, ' ').substr(0, 3);
return_code = db.retrieve_mid_record(&mid_record, mid_code);
switch(return_code) {
case DATABASE_RECORD_FOUND: return mid_record.country;
case DATABASE_NOT_FOUND: return "No mids.db file";
default: return "";
}
}
static std::string text(const std::string &text) {
size_t end = text.find_last_not_of("@");
return (end == std::string::npos) ? "" : text.substr(0, end + 1);
}
static std::string navigational_status(const unsigned int value) {
switch(value) {
case 0: return "under way w/engine";
case 1: return "at anchor";
case 2: return "not under command";
case 3: return "restricted maneuv";
case 4: return "constrained draught";
case 5: return "moored";
case 6: return "aground";
case 7: return "fishing";
case 8: return "sailing";
case 9: case 10: case 13: return "reserved";
case 11: return "towing astern";
case 12: return "towing ahead/along";
case 14: return "SART/MOB/EPIRB";
case 15: return "undefined";
default: return "unknown";
}
}
static std::string rate_of_turn(const RateOfTurn value) {
switch(value) {
case -128: return "not available";
case -127: return "left >5 deg/30sec";
case 0: return "0 deg/min";
case 127: return "right >5 deg/30sec";
default:
{
std::string result = (value < 0) ? "left " : "right ";
const float value_deg_sqrt = value / 4.733f;
const int32_t value_deg = value_deg_sqrt * value_deg_sqrt;
result += to_string_dec_uint(value_deg);
result += " deg/min";
return result;
}
}
}
static std::string speed_over_ground(const SpeedOverGround value) {
if( value == 1023 ) {
return "not available";
} else if( value == 1022 ) {
return ">= 102.2 knots";
} else {
return to_string_dec_uint(value / 10) + "." + to_string_dec_uint(value % 10, 1) + " knots";
}
}
static std::string course_over_ground(const CourseOverGround value) {
if( value > 3600 ) {
return "invalid";
} else if( value == 3600 ) {
return "not available";
} else {
return to_string_dec_uint(value / 10) + "." + to_string_dec_uint(value % 10, 1) + " deg";
}
}
static std::string true_heading(const TrueHeading value) {
if( value == 511 ) {
return "not available";
} else if( value > 359 ) {
return "invalid";
} else {
return to_string_dec_uint(value) + " deg";
}
}
} /* namespace format */
} /* namespace ais */
void AISLogger::on_packet(const ais::Packet& packet) {
// TODO: Unstuff here, not in baseband!
std::string entry;
entry.reserve((packet.length() + 3) / 4);
for(size_t i=0; i<packet.length(); i+=4) {
const auto nibble = packet.read(i, 4);
entry += (nibble >= 10) ? ('W' + nibble) : ('0' + nibble);
}
log_file.write_entry(packet.received_at(), entry);
}
void AISRecentEntry::update(const ais::Packet& packet) {
received_count++;
switch(packet.message_id()) {
case 1:
case 2:
case 3:
navigational_status = packet.read(38, 4);
last_position.rate_of_turn = packet.read(42, 8);
last_position.speed_over_ground = packet.read(50, 10);
last_position.timestamp = packet.received_at();
last_position.latitude = packet.latitude(89);
last_position.longitude = packet.longitude(61);
last_position.course_over_ground = packet.read(116, 12);
last_position.true_heading = packet.read(128, 9);
break;
case 4:
last_position.timestamp = packet.received_at();
last_position.latitude = packet.latitude(107);
last_position.longitude = packet.longitude(79);
break;
case 5:
call_sign = packet.text(70, 7);
name = packet.text(112, 20);
destination = packet.text(302, 20);
break;
case 18:
last_position.timestamp = packet.received_at();
last_position.speed_over_ground = packet.read(46, 10);
last_position.latitude = packet.latitude(85);
last_position.longitude = packet.longitude(57);
last_position.course_over_ground = packet.read(112, 12);
last_position.true_heading = packet.read(124, 9);
break;
case 21:
name = packet.text(43, 20);
last_position.timestamp = packet.received_at();
last_position.latitude = packet.latitude(192);
last_position.longitude = packet.longitude(164);
break;
case 24:
switch (packet.read(38, 2))
{
case 0:
name = packet.text(40, 20);
break;
case 1:
call_sign = packet.text(90, 7);
break;
default:
break;
}
break;
default:
break;
}
}
namespace ui {
template<>
void RecentEntriesTable<AISRecentEntries>::draw(
const Entry& entry,
const Rect& target_rect,
Painter& painter,
const Style& style
) {
std::string line = ais::format::mmsi(entry.mmsi) + " ";
if( !entry.name.empty() ) {
line += ais::format::text(entry.name);
} else {
line += ais::format::text(entry.call_sign);
}
line.resize(target_rect.width() / 8, ' ');
painter.draw_string(target_rect.location(), style, line);
}
AISRecentEntryDetailView::AISRecentEntryDetailView(NavigationView& nav) {
add_children({
&button_done,
&button_see_map,
});
button_done.on_select = [this](const ui::Button&) {
if( this->on_close ) {
this->on_close();
}
};
button_see_map.on_select = [this, &nav](Button&) {
geomap_view = nav.push<GeoMapView>(
ais::format::text(entry_.name),
0,
GeoPos::alt_unit::METERS,
ais::format::latlon_float(entry_.last_position.latitude.normalized()),
ais::format::latlon_float(entry_.last_position.longitude.normalized()),
entry_.last_position.true_heading,
[this]() {
send_updates = false;
});
send_updates = true;
};
}
AISRecentEntryDetailView::AISRecentEntryDetailView(const AISRecentEntryDetailView&Entry) : View()
{
(void)Entry;
}
AISRecentEntryDetailView & AISRecentEntryDetailView::operator=(const AISRecentEntryDetailView&Entry)
{
(void)Entry;
return *this;
}
void AISRecentEntryDetailView::update_position() {
if (send_updates)
geomap_view->update_position(ais::format::latlon_float(entry_.last_position.latitude.normalized()), ais::format::latlon_float(entry_.last_position.longitude.normalized()), (float)entry_.last_position.true_heading, 0);
}
void AISRecentEntryDetailView::focus() {
button_done.focus();
}
Rect AISRecentEntryDetailView::draw_field(
Painter& painter,
const Rect& draw_rect,
const Style& style,
const std::string& label,
const std::string& value
) {
const int label_length_max = 4;
painter.draw_string(Point { draw_rect.left(), draw_rect.top() }, style, label);
painter.draw_string(Point { draw_rect.left() + (label_length_max + 1) * 8, draw_rect.top() }, style, value);
return { draw_rect.left(), draw_rect.top() + draw_rect.height(), draw_rect.width(), draw_rect.height() };
}
void AISRecentEntryDetailView::paint(Painter& painter) {
View::paint(painter);
const auto s = style();
const auto rect = screen_rect();
auto field_rect = Rect { rect.left(), rect.top() + 16, rect.width(), 16 };
field_rect = draw_field(painter, field_rect, s, "MMSI", ais::format::mmsi(entry_.mmsi));
field_rect = draw_field(painter, field_rect, s, "Ctry", ais::format::mid(entry_.mmsi));
field_rect = draw_field(painter, field_rect, s, "Name", ais::format::text(entry_.name));
field_rect = draw_field(painter, field_rect, s, "Call", ais::format::text(entry_.call_sign));
field_rect = draw_field(painter, field_rect, s, "Dest", ais::format::text(entry_.destination));
field_rect = draw_field(painter, field_rect, s, "Last", to_string_datetime(entry_.last_position.timestamp));
field_rect = draw_field(painter, field_rect, s, "Pos ", ais::format::latlon(entry_.last_position.latitude, entry_.last_position.longitude));
field_rect = draw_field(painter, field_rect, s, "Stat", ais::format::navigational_status(entry_.navigational_status));
field_rect = draw_field(painter, field_rect, s, "RoT ", ais::format::rate_of_turn(entry_.last_position.rate_of_turn));
field_rect = draw_field(painter, field_rect, s, "SoG ", ais::format::speed_over_ground(entry_.last_position.speed_over_ground));
field_rect = draw_field(painter, field_rect, s, "CoG ", ais::format::course_over_ground(entry_.last_position.course_over_ground));
field_rect = draw_field(painter, field_rect, s, "Head", ais::format::true_heading(entry_.last_position.true_heading));
field_rect = draw_field(painter, field_rect, s, "Rx #", to_string_dec_uint(entry_.received_count));
}
void AISRecentEntryDetailView::set_entry(const AISRecentEntry& entry) {
entry_ = entry;
set_dirty();
}
AISAppView::AISAppView(NavigationView& nav) : nav_ { nav } {
baseband::run_image(portapack::spi_flash::image_tag_ais);
add_children({
&label_channel,
&options_channel,
&field_rf_amp,
&field_lna,
&field_vga,
&rssi,
&channel,
&recent_entries_view,
&recent_entry_detail_view,
});
// load app settings
auto rc = settings.load("rx_ais", &app_settings);
if(rc == SETTINGS_OK) {
field_lna.set_value(app_settings.lna);
field_vga.set_value(app_settings.vga);
field_rf_amp.set_value(app_settings.rx_amp);
target_frequency_ = app_settings.rx_frequency;
}
else target_frequency_ = initial_target_frequency;
recent_entry_detail_view.hidden(true);
receiver_model.set_tuning_frequency(tuning_frequency());
receiver_model.set_sampling_rate(sampling_rate);
receiver_model.set_baseband_bandwidth(baseband_bandwidth);
receiver_model.enable(); // Before using radio::enable(), but not updating Ant.DC-Bias.
options_channel.on_change = [this](size_t, OptionsField::value_t v) {
this->on_frequency_changed(v);
};
options_channel.set_by_value(target_frequency());
recent_entries_view.on_select = [this](const AISRecentEntry& entry) {
this->on_show_detail(entry);
};
recent_entry_detail_view.on_close = [this]() {
this->on_show_list();
};
logger = std::make_unique<AISLogger>();
if( logger ) {
logger->append( LOG_ROOT_DIR "/AIS.TXT" );
}
}
AISAppView::~AISAppView() {
// save app settings
app_settings.rx_frequency = target_frequency_;
settings.save("rx_ais", &app_settings);
receiver_model.disable(); // to switch off all, including DC bias.
baseband::shutdown();
}
void AISAppView::focus() {
options_channel.focus();
}
void AISAppView::set_parent_rect(const Rect new_parent_rect) {
View::set_parent_rect(new_parent_rect);
const Rect content_rect { 0, header_height, new_parent_rect.width(), new_parent_rect.height() - header_height };
recent_entries_view.set_parent_rect(content_rect);
recent_entry_detail_view.set_parent_rect(content_rect);
}
void AISAppView::on_packet(const ais::Packet& packet) {
if( logger ) {
logger->on_packet(packet);
}
auto& entry = ::on_packet(recent, packet.source_id());
entry.update(packet);
recent_entries_view.set_dirty();
// TODO: Crude hack, should be a more formal listener arrangement...
if( entry.key() == recent_entry_detail_view.entry().key() ) {
recent_entry_detail_view.set_entry(entry);
recent_entry_detail_view.update_position();
}
}
void AISAppView::on_show_list() {
recent_entries_view.hidden(false);
recent_entry_detail_view.hidden(true);
recent_entries_view.focus();
}
void AISAppView::on_show_detail(const AISRecentEntry& entry) {
recent_entries_view.hidden(true);
recent_entry_detail_view.hidden(false);
recent_entry_detail_view.set_entry(entry);
recent_entry_detail_view.focus();
}
void AISAppView::on_frequency_changed(const uint32_t new_target_frequency) {
set_target_frequency(new_target_frequency);
}
void AISAppView::set_target_frequency(const uint32_t new_value) {
target_frequency_ = new_value;
radio::set_tuning_frequency(tuning_frequency());
}
uint32_t AISAppView::target_frequency() const {
return target_frequency_;
}
uint32_t AISAppView::tuning_frequency() const {
return target_frequency() - (sampling_rate / 4);
}
} /* namespace ui */