567 lines
19 KiB
C++

/*
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
* Copyright (C) 2018 Furrtek
*
* 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 "ui_scanner.hpp"
#include "ui_fileman.hpp"
using namespace portapack;
namespace ui {
ScannerThread::ScannerThread(
std::vector<rf::Frequency> frequency_list
) : frequency_list_ { std::move(frequency_list) }
{
thread = chThdCreateFromHeap(NULL, 1024, NORMALPRIO + 10, ScannerThread::static_fn, this);
}
ScannerThread::~ScannerThread() {
stop();
}
void ScannerThread::stop() {
if( thread ) {
chThdTerminate(thread);
chThdWait(thread);
thread = nullptr;
}
}
void ScannerThread::set_scanning(const bool v) {
_scanning = v;
}
bool ScannerThread::is_scanning() {
return _scanning;
}
void ScannerThread::set_freq_lock(const uint32_t v) {
_freq_lock = v;
}
uint32_t ScannerThread::is_freq_lock() {
return _freq_lock;
}
void ScannerThread::set_freq_del(const uint32_t v) {
_freq_del = v;
}
void ScannerThread::change_scanning_direction() {
_fwd = !_fwd;
chThdSleepMilliseconds(300); //Give some pause after reversing scanning direction
}
msg_t ScannerThread::static_fn(void* arg) {
auto obj = static_cast<ScannerThread*>(arg);
obj->run();
return 0;
}
void ScannerThread::run() {
if (frequency_list_.size()) { //IF THERE IS A FREQUENCY LIST ...
RetuneMessage message { };
uint32_t frequency_index = frequency_list_.size();
bool restart_scan = false; //Flag whenever scanning is restarting after a pause
while( !chThdShouldTerminate() ) {
if (_scanning) { //Scanning
if (_freq_lock == 0) { //normal scanning (not performing freq_lock)
if (!restart_scan) { //looping at full speed
if (_fwd) { //forward
frequency_index++;
if (frequency_index >= frequency_list_.size())
frequency_index = 0;
} else { //reverse
if (frequency_index < 1)
frequency_index = frequency_list_.size();
frequency_index--;
}
receiver_model.set_tuning_frequency(frequency_list_[frequency_index]); // Retune
}
else
restart_scan=false; //Effectively skipping first retuning, giving system time
}
message.range = frequency_index; //Inform freq (for coloring purposes also!)
EventDispatcher::send_message(message);
}
else { //NOT scanning
if (_freq_del != 0) { //There is a frequency to delete
for (uint16_t i = 0; i < frequency_list_.size(); i++) { //Search for the freq to delete
if (frequency_list_[i] == _freq_del)
{ //found: Erase it
frequency_list_.erase(frequency_list_.begin() + i);
if (i==0) //set scan index one place back to compensate
i=frequency_list_.size();
else
i--;
break;
}
}
_freq_del = 0; //deleted.
}
else {
restart_scan=true; //Flag the need for skipping a cycle when restarting scan
}
}
chThdSleepMilliseconds(50); //Needed to (eventually) stabilize the receiver into new freq
}
}
}
void ScannerView::handle_retune(uint32_t i) {
switch (scan_thread->is_freq_lock())
{
case 0: //NO FREQ LOCK, ONGOING STANDARD SCANNING
text_cycle.set( to_string_dec_uint(i + 1,3) );
current_index = i; //since it is an ongoing scan, this is a new index
if (description_list[current_index].size() > 0) desc_cycle.set( description_list[current_index] ); //Show new description
break;
case 1: //STARTING LOCK FREQ
big_display.set_style(&style_yellow);
break;
case MAX_FREQ_LOCK: //FREQ IS STRONG: GREEN and scanner will pause when on_statistics_update()
big_display.set_style(&style_green);
break;
default: //freq lock is checking the signal, do not update display
return;
}
big_display.set(frequency_list[current_index]); //UPDATE the big Freq after 0, 1 or MAX_FREQ_LOCK (at least, for color synching)
}
void ScannerView::focus() {
field_mode.focus();
}
ScannerView::~ScannerView() {
audio::output::stop();
receiver_model.disable();
baseband::shutdown();
}
void ScannerView::show_max() { //show total number of freqs to scan
if (frequency_list.size() == MAX_DB_ENTRY) {
text_max.set_style(&style_red);
text_max.set( "/ " + to_string_dec_uint(MAX_DB_ENTRY) + " (DB MAX!)");
}
else {
text_max.set_style(&style_grey);
text_max.set( "/ " + to_string_dec_uint(frequency_list.size()));
}
}
ScannerView::ScannerView(
NavigationView& nav
) : nav_ { nav } , loaded_file_name { "SCANNER" }
{
add_children({
&labels,
&field_lna,
&field_vga,
&field_rf_amp,
&field_volume,
&field_bw,
&field_squelch,
&field_wait,
&button_load,
&rssi,
&text_cycle,
&text_max,
&desc_cycle,
&big_display,
&button_manual_start,
&button_manual_end,
&field_mode,
&step_mode,
&button_manual_scan,
&button_pause,
&button_dir,
&button_audio_app,
&button_mic_app,
&button_add,
&button_remove
});
def_step = change_mode(AM); //Start on AM
field_mode.set_by_value(AM); //Reflect the mode into the manual selector
//HELPER: Pre-setting a manual range, based on stored frequency
rf::Frequency stored_freq = persistent_memory::tuned_frequency();
frequency_range.min = stored_freq - 1000000;
button_manual_start.set_text(to_string_short_freq(frequency_range.min));
frequency_range.max = stored_freq + 1000000;
button_manual_end.set_text(to_string_short_freq(frequency_range.max));
button_load.on_select = [this, &nav](Button&) {
// load txt files from the FREQMAN folder
auto open_view = nav.push<FileLoadView>(".TXT");
open_view->on_changed = [this](std::filesystem::path new_file_path) {
std::string dir_filter = "FREQMAN/";
std::string str_file_path = new_file_path.string();
if (str_file_path.find(dir_filter) != string::npos) { // assert file from the FREQMAN folder
scan_pause();
// get the filename without txt extension so we can use load_freqman_file fcn
std::string str_file_name = new_file_path.stem().string();
frequency_file_load(str_file_name, true);
} else {
nav_.display_modal("LOAD ERROR", "A valid file from\nFREQMAN directory is\nrequired.");
}
};
};
button_manual_start.on_select = [this, &nav](Button& button) {
auto new_view = nav_.push<FrequencyKeypadView>(frequency_range.min);
new_view->on_changed = [this, &button](rf::Frequency f) {
frequency_range.min = f;
button_manual_start.set_text(to_string_short_freq(f));
};
};
button_manual_end.on_select = [this, &nav](Button& button) {
auto new_view = nav.push<FrequencyKeypadView>(frequency_range.max);
new_view->on_changed = [this, &button](rf::Frequency f) {
frequency_range.max = f;
button_manual_end.set_text(to_string_short_freq(f));
};
};
button_pause.on_select = [this](Button&) {
if ( userpause )
user_resume();
else {
scan_pause();
button_pause.set_text("RESUME"); //PAUSED, show resume
userpause=true;
}
};
button_audio_app.on_select = [this](Button&) {
scan_thread->stop();
nav_.pop();
nav_.push<AnalogAudioView>();
};
button_mic_app.on_select = [this](Button&) {
scan_thread->stop();
nav_.pop();
nav_.push<MicTXView>();
};
button_remove.on_select = [this](Button&) {
if (frequency_list.size() > current_index) {
if (scan_thread->is_scanning()) //STOP Scanning if necessary
scan_thread->set_scanning(false);
scan_thread->set_freq_del(frequency_list[current_index]);
description_list.erase(description_list.begin() + current_index);
frequency_list.erase(frequency_list.begin() + current_index);
show_max(); //UPDATE new list size on screen
desc_cycle.set(" "); //Clean up description (cosmetic detail)
scan_thread->set_freq_lock(0); //Reset the scanner lock
if ( userpause ) //If user-paused, resume
user_resume();
}
};
button_manual_scan.on_select = [this](Button&) {
if (!frequency_range.min || !frequency_range.max) {
nav_.display_modal("Error", "Both START and END freqs\nneed a value");
} else if (frequency_range.min > frequency_range.max) {
nav_.display_modal("Error", "END freq\nis lower than START");
} else {
audio::output::stop();
scan_thread->stop(); //STOP SCANNER THREAD
frequency_list.clear();
description_list.clear();
def_step = step_mode.selected_index_value(); //Use def_step from manual selector
description_list.push_back(
"M" + to_string_short_freq(frequency_range.min) + ">"
+ to_string_short_freq(frequency_range.max) + "S"
+ to_string_short_freq(def_step).erase(0,1) //euquiq: lame kludge to reduce spacing in step freq
);
rf::Frequency frequency = frequency_range.min;
while (frequency_list.size() < MAX_DB_ENTRY && frequency <= frequency_range.max) { //add manual range
frequency_list.push_back(frequency);
description_list.push_back(""); //If empty, will keep showing the last description
frequency+=def_step;
}
show_max();
if ( userpause ) //If user-paused, resume
user_resume();
big_display.set_style(&style_grey); //Back to grey color
start_scan_thread(); //RESTART SCANNER THREAD
}
};
field_mode.on_change = [this](size_t, OptionsField::value_t v) {
receiver_model.disable();
baseband::shutdown();
change_mode(v);
if ( !scan_thread->is_scanning() ) //for some motive, audio output gets stopped.
audio::output::start(); //So if scan was stopped we resume audio
receiver_model.enable();
};
button_dir.on_select = [this](Button&) {
scan_thread->change_scanning_direction();
if ( userpause ) //If user-paused, resume
user_resume();
big_display.set_style(&style_grey); //Back to grey color
};
button_add.on_select = [this](Button&) { //frequency_list[current_index]
File scanner_file;
std::string freq_file_path = "FREQMAN/" + loaded_file_name + ".TXT";
auto result = scanner_file.open(freq_file_path); //First search if freq is already in txt
if (!result.is_valid()) {
std::string frequency_to_add = "f="
+ to_string_dec_uint(frequency_list[current_index] / 1000)
+ to_string_dec_uint(frequency_list[current_index] % 1000UL, 3, '0');
char one_char[1]; //Read it char by char
std::string line; //and put read line in here
bool found=false;
for (size_t pointer=0; pointer < scanner_file.size();pointer++) {
scanner_file.seek(pointer);
scanner_file.read(one_char, 1);
if ((int)one_char[0] > 31) { //ascii space upwards
line += one_char[0]; //Add it to the textline
}
else if (one_char[0] == '\n') { //New Line
if (line.compare(0, frequency_to_add.size(),frequency_to_add) == 0) {
found=true;
break;
}
line.clear(); //Ready for next textline
}
}
if (found) {
nav_.display_modal("Error", "Frequency already exists");
big_display.set(frequency_list[current_index]); //After showing an error
}
else {
scanner_file.append(freq_file_path); //Second: append if it is not there
scanner_file.write_line(frequency_to_add + ",d=ADD FQ");
}
} else
{
nav_.display_modal("Error", "Cannot open " + loaded_file_name + ".TXT\nfor appending freq.");
big_display.set(frequency_list[current_index]); //After showing an error
}
};
//PRE-CONFIGURATION:
field_wait.on_change = [this](int32_t v) { wait = v; }; field_wait.set_value(5);
field_squelch.on_change = [this](int32_t v) { squelch = v; }; field_squelch.set_value(-10);
field_volume.set_value((receiver_model.headphone_volume() - audio::headphone::volume_range().max).decibel() + 99);
field_volume.on_change = [this](int32_t v) { this->on_headphone_volume_changed(v); };
// LEARN FREQUENCIES
std::string scanner_txt = "SCANNER";
frequency_file_load(scanner_txt);
}
void ScannerView::frequency_file_load(std::string file_name, bool stop_all_before) {
// stop everything running now if required
if (stop_all_before) {
scan_thread->stop();
frequency_list.clear(); // clear the existing frequency list (expected behavior)
description_list.clear();
def_step = step_mode.selected_index_value(); //Use def_step from manual selector
}
if ( load_freqman_file(file_name, database) ) {
loaded_file_name = file_name; // keep loaded filename in memory
for(auto& entry : database) { // READ LINE PER LINE
if (frequency_list.size() < MAX_DB_ENTRY) { //We got space!
if (entry.type == RANGE) { //RANGE
switch (entry.step) {
case AM_US: def_step = 10000; break ;
case AM_EUR:def_step = 9000; break ;
case NFM_1: def_step = 12500; break ;
case NFM_2: def_step = 6250; break ;
case FM_1: def_step = 100000; break ;
case FM_2: def_step = 50000; break ;
case N_1: def_step = 25000; break ;
case N_2: def_step = 250000; break ;
case AIRBAND: def_step= 8330; break ;
case ERROR_STEP:
case STEP_DEF:
default:
def_step = step_mode.selected_index_value(); //Use def_step from manual selector
break ;
}
frequency_list.push_back(entry.frequency_a); //Store starting freq and description
description_list.push_back("R" + to_string_short_freq(entry.frequency_a)
+ ">" + to_string_short_freq(entry.frequency_b)
+ " S" + to_string_short_freq(def_step).erase(0,1) //euquiq: lame kludge to reduce spacing in step freq
);
while (frequency_list.size() < MAX_DB_ENTRY && entry.frequency_a <= entry.frequency_b) { //add the rest of the range
entry.frequency_a+=def_step;
frequency_list.push_back(entry.frequency_a);
description_list.push_back(""); //Token (keep showing the last description)
}
} else if ( entry.type == SINGLE) {
frequency_list.push_back(entry.frequency_a);
description_list.push_back("S: " + entry.description);
}
show_max();
}
else
{
break; //No more space: Stop reading the txt file !
}
}
}
else
{
loaded_file_name = "SCANNER"; // back to the default frequency file
desc_cycle.set(" NO " + file_name + ".TXT FILE ..." );
}
audio::output::stop();
step_mode.set_by_value(def_step); //Impose the default step into the manual step selector
start_scan_thread();
}
void ScannerView::on_statistics_update(const ChannelStatistics& statistics) {
if ( !userpause ) //Scanning not user-paused
{
if (timer >= (wait * 10) )
{
timer = 0;
scan_resume();
}
else if (!timer)
{
if (statistics.max_db > squelch ) { //There is something on the air...(statistics.max_db > -squelch)
if (scan_thread->is_freq_lock() >= MAX_FREQ_LOCK) { //checking time reached
scan_pause();
timer++;
} else {
scan_thread->set_freq_lock( scan_thread->is_freq_lock() + 1 ); //in lock period, still analyzing the signal
}
} else { //There is NOTHING on the air
if (scan_thread->is_freq_lock() > 0) { //But are we already in freq_lock ?
big_display.set_style(&style_grey); //Back to grey color
scan_thread->set_freq_lock(0); //Reset the scanner lock, since there is no signal
}
}
}
else //Ongoing wait time
{
timer++;
}
}
}
void ScannerView::scan_pause() {
if (scan_thread->is_scanning()) {
scan_thread->set_freq_lock(0); //Reset the scanner lock (because user paused, or MAX_FREQ_LOCK reached) for next freq scan
scan_thread->set_scanning(false); // WE STOP SCANNING
audio::output::start();
}
}
void ScannerView::scan_resume() {
audio::output::stop();
big_display.set_style(&style_grey); //Back to grey color
if (!scan_thread->is_scanning())
scan_thread->set_scanning(true); // RESUME!
}
void ScannerView::user_resume() {
timer = wait * 10; //Will trigger a scan_resume() on_statistics_update, also advancing to next freq.
button_pause.set_text("PAUSE"); //Show button for pause
userpause=false; //Resume scanning
}
void ScannerView::on_headphone_volume_changed(int32_t v) {
const auto new_volume = volume_t::decibel(v - 99) + audio::headphone::volume_range().max;
receiver_model.set_headphone_volume(new_volume);
}
size_t ScannerView::change_mode(uint8_t new_mod) { //Before this, do a scan_thread->stop(); After this do a start_scan_thread()
using option_t = std::pair<std::string, int32_t>;
using options_t = std::vector<option_t>;
options_t bw;
field_bw.on_change = [this](size_t n, OptionsField::value_t) {
(void)n; //avoid unused warning
};
switch (new_mod) {
case NFM: //bw 16k (2) default
bw.emplace_back("8k5", 0);
bw.emplace_back("11k", 0);
bw.emplace_back("16k", 0);
field_bw.set_options(bw);
baseband::run_image(portapack::spi_flash::image_tag_nfm_audio);
receiver_model.set_modulation(ReceiverModel::Mode::NarrowbandFMAudio);
field_bw.set_selected_index(2);
receiver_model.set_nbfm_configuration(field_bw.selected_index());
field_bw.on_change = [this](size_t n, OptionsField::value_t) { receiver_model.set_nbfm_configuration(n); };
receiver_model.set_sampling_rate(3072000); receiver_model.set_baseband_bandwidth(1750000);
break;
case AM:
bw.emplace_back("DSB", 0);
bw.emplace_back("USB", 0);
bw.emplace_back("LSB", 0);
bw.emplace_back("CW ", 0);
field_bw.set_options(bw);
baseband::run_image(portapack::spi_flash::image_tag_am_audio);
receiver_model.set_modulation(ReceiverModel::Mode::AMAudio);
field_bw.set_selected_index(0);
receiver_model.set_am_configuration(field_bw.selected_index());
field_bw.on_change = [this](size_t n, OptionsField::value_t) { receiver_model.set_am_configuration(n); };
receiver_model.set_sampling_rate(2000000);receiver_model.set_baseband_bandwidth(2000000);
break;
case WFM:
bw.emplace_back("16k", 0);
field_bw.set_options(bw);
baseband::run_image(portapack::spi_flash::image_tag_wfm_audio);
receiver_model.set_modulation(ReceiverModel::Mode::WidebandFMAudio);
field_bw.set_selected_index(0);
receiver_model.set_wfm_configuration(field_bw.selected_index());
field_bw.on_change = [this](size_t n, OptionsField::value_t) { receiver_model.set_wfm_configuration(n); };
receiver_model.set_sampling_rate(3072000); receiver_model.set_baseband_bandwidth(2000000);
break;
}
return mod_step[new_mod];
}
void ScannerView::start_scan_thread() {
receiver_model.enable();
receiver_model.set_squelch_level(0);
scan_thread = std::make_unique<ScannerThread>(frequency_list);
}
} /* namespace ui */