Merge pull request #215 from euquiq/looking_glass_full_bw_cascade_scanner

New "looking Glass" app

firmware/application/CMakeLists.txt

@@ -231,6 +231,7 @@ set(CPPSRC
 	apps/ui_keyfob.cpp
 	apps/ui_lcr.cpp
 	apps/lge_app.cpp
+	apps/ui_looking_glass_app.cpp
 	apps/ui_mictx.cpp
 	apps/ui_modemsetup.cpp
 	apps/ui_morse.cpp

firmware/application/apps/ui_looking_glass_app.cpp

@@ -0,0 +1,334 @@
+/*
+ * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2020 euquiq
+ *
+ * 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_looking_glass_app.hpp"
+
+
+using namespace portapack;
+
+namespace ui
+{
+
+void GlassView::focus() {
+	field_marker.focus();
+}
+
+GlassView::~GlassView() {
+    receiver_model.set_sampling_rate(3072000); // Just a hack to avoid hanging other apps
+	receiver_model.disable();
+	baseband::shutdown();
+}
+
+void GlassView::on_lna_changed(int32_t v_db) {
+	receiver_model.set_lna(v_db);
+}
+
+void GlassView::on_vga_changed(int32_t v_db) {
+	receiver_model.set_vga(v_db);
+}
+
+void GlassView::add_spectrum_pixel(Color color)
+{
+    spectrum_row[pixel_index++] = color;
+    if (pixel_index == 240) //got an entire waterfall line
+    { 
+        const auto draw_y = display.scroll(1); //Scroll 1 pixel down
+        display.draw_pixels( {{0, draw_y}, {240, 1}}, spectrum_row); //new line at top
+        pixel_index = 0; //Start New cascade line
+    }
+}
+
+//Apparently, the spectrum object returns an array of 256 bins
+//Each having the radio signal power for it's corresponding frequency slot
+void GlassView::on_channel_spectrum(const ChannelSpectrum &spectrum)
+{
+    baseband::spectrum_streaming_stop();
+
+    // Convert bins of this spectrum slice into a representative max_power and when enough, into pixels
+    // Spectrum.db has 256 bins. Center 12 bins are ignored (DC spike is blanked) Leftmost and rightmost 2 bins are ignored
+    // All things said and done, we actually need 240 of those bins:
+    for(uint8_t bin = 0; bin < 240; bin++) 
+    {
+        if (bin < 120) {
+            if (spectrum.db[134 + bin] > max_power)
+                max_power = spectrum.db[134 + bin];
+        }         
+        else
+        {
+            if (spectrum.db[bin - 118] > max_power)
+                    max_power = spectrum.db[bin - 118];  
+        }
+
+        bins_Hz_size += each_bin_size;   //add this bin Hz count into the "pixel fulfilled bag of Hz"
+
+        if (bins_Hz_size >= marker_pixel_step) //new pixel fullfilled
+        {
+            if (min_color_power < max_power)
+                add_spectrum_pixel(spectrum_rgb3_lut[max_power]); //Pixel will represent max_power
+            else
+                add_spectrum_pixel(0);  //Filtered out, show black
+
+            max_power = 0;
+
+            if (!pixel_index) //Received indication that a waterfall line has been completed
+            {
+                bins_Hz_size = 0;  //Since this is an entire pixel line, we don't carry "Pixels into next bin"
+                break;
+            } else {
+                bins_Hz_size -= marker_pixel_step; //reset bins size, but carrying the eventual excess Hz into next pixel
+            }
+        }
+    }
+
+    if (pixel_index) 
+        f_center += SEARCH_SLICE_WIDTH; //Move into the next bandwidth slice NOTE: spectrum.sampling_rate = SEARCH_SLICE_WIDTH
+    else
+        f_center = f_center_ini; //Start a new sweep
+
+    receiver_model.set_tuning_frequency(f_center); //tune rx for this slice
+    baseband::spectrum_streaming_start();          //Do the RX
+}
+
+void GlassView::on_hide()
+{
+    baseband::spectrum_streaming_stop();
+    display.scroll_disable();
+}
+
+void GlassView::on_show()
+{
+    display.scroll_set_area( 109, 319); //Restart scroll on the correct coordinates
+    baseband::spectrum_streaming_start();
+}
+
+void GlassView::on_range_changed()
+{
+    f_min = field_frequency_min.value();
+    f_max = field_frequency_max.value();
+    search_span = f_max - f_min;
+
+    field_marker.set_range(f_min, f_max);              //Move the marker between range
+    field_marker.set_value(f_min + (search_span / 2)); //Put MARKER AT MIDDLE RANGE
+    text_range.set(to_string_dec_uint(search_span));
+
+    f_min = (f_min)*MHZ_DIV; //Transpose into full frequency realm
+    f_max = (f_max)*MHZ_DIV;
+    search_span = search_span * MHZ_DIV;
+
+    marker_pixel_step = search_span / 240;                                        //Each pixel value in Hz
+    text_marker_pm.set(to_string_dec_uint((marker_pixel_step / X2_MHZ_DIV) + 1)); // Give idea of +/- marker precision
+
+    int32_t marker_step = marker_pixel_step / MHZ_DIV;
+    if (!marker_step) 
+        field_marker.set_step(1); //in case selected range is less than 240 (pixels)
+    else
+        field_marker.set_step(marker_step); //step needs to be a pixel wide.
+
+    f_center_ini = f_min + (SEARCH_SLICE_WIDTH / 2);    //Initial center frequency for sweep
+    f_center_ini += SEARCH_SLICE_WIDTH;                 //euquiq: Why do I need to move the center ???!!! (shift needed for marker accuracy)
+
+    PlotMarker(field_marker.value()); //Refresh marker on screen
+
+    f_center = f_center_ini;                        //Reset sweep into first slice
+    pixel_index = 0;                                //reset pixel counter
+    max_power = 0;
+    bins_Hz_size = 0;                               //reset amount of Hz filled up by pixels
+    
+    baseband::set_spectrum(SEARCH_SLICE_WIDTH, field_trigger.value());   
+    receiver_model.set_tuning_frequency(f_center_ini); //tune rx for this slice
+}
+
+void GlassView::PlotMarker(rf::Frequency pos)
+{
+    pos = pos * MHZ_DIV;
+    pos -= f_min;
+    pos = pos / marker_pixel_step; //Real pixel 
+
+    portapack::display.fill_rectangle({0, 100, 240, 8}, Color::black()); //Clear old marker and whole marker rectangle btw
+    portapack::display.fill_rectangle({pos - 2, 100, 5, 3}, Color::red()); //Red marker middle
+    portapack::display.fill_rectangle({pos - 1, 103, 3, 3}, Color::red()); //Red marker middle
+    portapack::display.fill_rectangle({pos, 106, 1, 2}, Color::red()); //Red marker middle
+}
+
+GlassView::GlassView(
+    NavigationView &nav) : nav_(nav)
+{
+    baseband::run_image(portapack::spi_flash::image_tag_wideband_spectrum);
+
+    add_children({&labels,
+                  &field_frequency_min,
+                  &field_frequency_max,
+                  &field_lna,
+                  &field_vga,
+                  &text_range,
+                  &filter_config,
+                  &field_rf_amp,
+                  &range_presets,
+                  &field_marker,
+                  &text_marker_pm,
+                  &field_trigger
+                });
+
+    load_Presets(); //Load available presets from TXT files (or default)
+    
+    field_frequency_min.set_value(presets_db[0].min);   //Defaults to first preset
+    field_frequency_min.on_change = [this](int32_t v) {
+        if (v >= field_frequency_max.value())
+            field_frequency_max.set_value(v + 240);
+        this->on_range_changed();
+    };
+
+    field_frequency_max.set_value(presets_db[0].max);   //Defaults to first preset
+    field_frequency_max.on_change = [this](int32_t v) {
+        if (v <= field_frequency_min.value())
+            field_frequency_min.set_value(v - 240);
+        this->on_range_changed();
+    };
+
+    field_lna.set_value(receiver_model.lna());
+    field_lna.on_change = [this](int32_t v) {
+        this->on_lna_changed(v);
+    };
+
+    field_vga.set_value(receiver_model.vga());
+    field_vga.on_change = [this](int32_t v_db) {
+        this->on_vga_changed(v_db);
+    };
+
+    filter_config.set_selected_index(0);
+	filter_config.on_change = [this](size_t n, OptionsField::value_t v) {
+		min_color_power = v;
+	};
+
+	range_presets.on_change = [this](size_t n, OptionsField::value_t v) {
+		field_frequency_min.set_value(presets_db[v].min,false);
+        field_frequency_max.set_value(presets_db[v].max,false);
+        this->on_range_changed();
+	};
+
+    field_marker.on_change = [this](int32_t v) {
+        PlotMarker(v); //Refresh marker on screen
+    };
+
+    field_marker.on_select = [this](NumberField&) {
+        f_center = field_marker.value();
+        f_center = f_center * MHZ_DIV;
+        receiver_model.set_tuning_frequency(f_center); //Center tune rx in marker freq.
+        receiver_model.set_frequency_step(MHZ_DIV); // Preset a 1 MHz frequency step into RX -> AUDIO
+        nav_.pop();
+		nav_.push<AnalogAudioView>(); //Jump into audio view
+    };
+
+    field_trigger.set_value(32);   //Defaults to 32, as normal triggering resolution
+    field_trigger.on_change = [this](int32_t v) {
+        baseband::set_spectrum(SEARCH_SLICE_WIDTH, v);
+    };
+
+    display.scroll_set_area( 109, 319);
+    baseband::set_spectrum(SEARCH_SLICE_WIDTH, field_trigger.value());	//trigger:
+    // Discord User jteich:  WidebandSpectrum::on_message to set the trigger value. In WidebandSpectrum::execute ,
+    // it keeps adding the output of the fft to the buffer until "trigger" number of calls are made, 
+    //at which time it pushes the buffer up with channel_spectrum.feed
+
+    on_range_changed();
+
+    receiver_model.set_modulation(ReceiverModel::Mode::SpectrumAnalysis);
+	receiver_model.set_sampling_rate(SEARCH_SLICE_WIDTH); //20mhz
+    receiver_model.set_baseband_bandwidth(SEARCH_SLICE_WIDTH); // possible values: 1.75/2.5/3.5/5/5.5/6/7/8/9/10/12/14/15/20/24/28MHz
+    receiver_model.set_squelch_level(0);
+	receiver_model.enable();
+}
+
+void GlassView::load_Presets() {
+	File presets_file; 		//LOAD /WHIPCALC/ANTENNAS.TXT from microSD
+	auto result = presets_file.open("LOOKINGGLASS/PRESETS.TXT");
+	presets_db.clear();			//Start with fresh db
+	if (result.is_valid()) {
+		presets_Default(); 		//There is no txt, store a default range
+	} else {
+
+		std::string line;		//There is a txt file
+		char one_char[1];		//Read it char by char
+		for (size_t pointer=0; pointer < presets_file.size();pointer++) {
+			presets_file.seek(pointer);
+			presets_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
+				txtline_process(line);				//make sense of this textline
+				line.clear();						//Ready for next textline
+			} 
+		}
+		if (line.length() > 0) txtline_process(line);	//Last line had no newline at end ?
+		if (!presets_db.size()) presets_Default();		//no antenna on txt, use default
+    }
+
+    populate_Presets();
+}
+
+void GlassView::txtline_process(std::string& line) 
+{
+	if (line.find("#") != std::string::npos) return;	//Line is just a comment
+
+	size_t comma = line.find(",");          //Get first comma position
+    if (comma == std::string::npos) return; //No comma at all
+
+	size_t previous = 0;
+	preset_entry new_preset;
+
+    new_preset.min = std::stoi(line.substr(0,comma));
+    if (!new_preset.min) return;    //No frequency!
+    
+    previous = comma + 1;
+    comma = line.find(",",previous);		//Search for next delimiter
+    if (comma == std::string::npos) return; //No comma at all
+
+    new_preset.max = std::stoi(line.substr(previous,comma - previous));
+    if (!new_preset.max) return;    //No frequency!
+
+    new_preset.label = line.substr(comma + 1);
+    if (new_preset.label.size() == 0) return; //No label ?
+    
+    presets_db.push_back(new_preset);   //Add this preset.
+}
+
+void GlassView::populate_Presets() 
+{
+    using option_t = std::pair<std::string, int32_t>;
+	using options_t = std::vector<option_t>;
+    options_t entries;
+
+	for (preset_entry preset : presets_db) 
+        {	//go thru all available presets
+            entries.emplace_back(preset.label,entries.size());
+        }
+    range_presets.set_options(entries);
+}
+
+void GlassView::presets_Default() 
+{
+        presets_db.clear();
+        presets_db.push_back({2320, 2560, "DEFAULT WIFI 2.4GHz"});
+}
+
+}

firmware/application/apps/ui_looking_glass_app.hpp

@@ -0,0 +1,183 @@
+/*
+  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+  * Copyright (C) 2020 euquiq
+  *
+  * 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.hpp"
+ #include "portapack.hpp"
+ #include "baseband_api.hpp"
+ #include "receiver_model.hpp"
+ #include "ui_widget.hpp"
+ #include "ui_navigation.hpp"
+ #include "ui_receiver.hpp"
+ #include "string_format.hpp"
+ #include "analog_audio_app.hpp"
+ #include "spectrum_color_lut.hpp"
+
+ namespace ui
+ {
+     #define SEARCH_SLICE_WIDTH	20000000 // Each slice bandwidth 20 MHz
+     #define MHZ_DIV	            1000000
+     #define X2_MHZ_DIV	        2000000
+
+     class GlassView : public View
+     {
+     public:
+         GlassView(NavigationView &nav);
+         ~GlassView();
+         std::string title() const override { return "Looking Glass"; };
+
+ 	    void on_show() override;
+ 	    void on_hide() override;
+         void focus() override;
+
+     private:
+     	NavigationView& nav_;
+
+        struct preset_entry
+        {
+            rf::Frequency min{};
+            rf::Frequency max{};
+            std::string label{};
+        };
+
+        std::vector<preset_entry> presets_db{};
+
+         void on_channel_spectrum(const ChannelSpectrum& spectrum);
+         void do_timers();
+         void on_range_changed();
+         void on_lna_changed(int32_t v_db);
+ 	    void on_vga_changed(int32_t v_db);
+         void add_spectrum_pixel(Color color);
+        void PlotMarker(rf::Frequency pos);
+        void load_Presets();
+        void txtline_process(std::string& line);
+        void populate_Presets();
+        void presets_Default();
+
+         rf::Frequency f_min { 0 }, f_max { 0 };
+         rf::Frequency search_span { 0 };
+         rf::Frequency f_center { 0 };
+         rf::Frequency f_center_ini { 0 };
+         rf::Frequency marker_pixel_step { 0 };
+         rf::Frequency each_bin_size { SEARCH_SLICE_WIDTH  / 240 };
+         rf::Frequency bins_Hz_size { 0 };
+         uint8_t min_color_power { 0 };
+         uint32_t pixel_index { 0 };
+         std::array<Color, 240> spectrum_row = { 0 };
+         ChannelSpectrumFIFO* fifo { nullptr }; 
+         uint8_t max_power = 0;
+
+        Labels labels{
+            {{0, 0}, "MIN:     MAX:     LNA   VGA  ", Color::light_grey()},
+            {{0, 1 * 16}, " RANGE:     FILTER:      AMP:", Color::light_grey()},
+            {{0, 2 * 16}, "PRESET:", Color::light_grey()},
+            {{0, 3 * 16}, "MARKER:     MHz +/-    MHz", Color::light_grey()},
+             {{0, 4 * 16}, "RESOLUTION:    (fft trigger)", Color::light_grey()}
+        };
+
+         NumberField field_frequency_min {
+             { 4 * 8, 0 * 16 },
+             4,
+             { 0, 6960 },
+             240,
+             ' '
+         };
+
+         NumberField field_frequency_max {
+             { 13 * 8, 0 * 16 },
+             4,
+             { 240, 7200 },
+             240,
+             ' '
+         };
+
+         LNAGainField field_lna {
+             { 21 * 8, 0 * 16 }
+         };
+
+         VGAGainField field_vga {
+             { 27 * 8, 0 * 16 }
+         };
+
+         Text text_range{
+            {7 * 8, 1 * 16, 4 * 8, 16},
+            ""};
+
+        OptionsField filter_config{
+            {19 * 8, 1 * 16},
+            4,
+            {
+                {"OFF ", 0},
+                {"MID ", 118}, //85 +25 (110) + a bit more to kill all blue
+                {"HIGH", 202}, //168 + 25 (193)
+            }};
+
+        RFAmpField field_rf_amp{
+            {29 * 8, 1 * 16}};
+
+        OptionsField range_presets{
+            {7 * 8, 2 * 16},
+            20,
+            {
+                {" NONE (WIFI 2.4GHz)", 0},
+            }};
+
+        NumberField field_marker{
+            {7 * 8, 3 * 16},
+            4,
+            {0, 7200},
+            25,
+            ' '};
+
+        Text text_marker_pm{
+            {20 * 8, 3 * 16, 2 * 8, 16},
+            ""};
+
+        NumberField field_trigger{
+             {11 * 8, 4 * 16},
+             3,
+             {2, 128},
+             2,
+             ' '};
+
+
+     MessageHandlerRegistration message_handler_spectrum_config {
+ 		Message::ID::ChannelSpectrumConfig,
+ 		[this](const Message* const p) {
+ 			const auto message = *reinterpret_cast<const ChannelSpectrumConfigMessage*>(p);
+ 			this->fifo = message.fifo;
+ 		}
+ 	};
+ 	MessageHandlerRegistration message_handler_frame_sync {
+ 		Message::ID::DisplayFrameSync,
+ 		[this](const Message* const) {
+ 			if( this->fifo ) {
+ 				ChannelSpectrum channel_spectrum;
+ 				while( fifo->out(channel_spectrum) ) {
+ 					this->on_channel_spectrum(channel_spectrum);
+ 				}
+ 			}
+ 		}
+ 	};
+
+     };
+ } 
+ 

firmware/application/ui_navigation.cpp

@@ -81,7 +81,7 @@
 #include "tpms_app.hpp"
 
 #include "core_control.hpp"
-
+#include "ui_looking_glass_app.hpp"
 #include "file.hpp"
 #include "png_writer.hpp"
 
@@ -548,6 +548,7 @@ SystemMenuView::SystemMenuView(NavigationView& nav) {
 		{ "Tools",		ui::Color::cyan(),			&bitmap_icon_utilities,	[&nav](){ nav.push<UtilitiesMenuView>(); } },
 		{ "Options", 	ui::Color::cyan(),			&bitmap_icon_setup,	  	[&nav](){ nav.push<SettingsMenuView>(); } },
 		{ "Debug",		ui::Color::light_grey(),	&bitmap_icon_debug,		[&nav](){ nav.push<DebugMenuView>(); } },
+		{ "Lookin'Glass",	ui::Color::red(),		&bitmap_icon_search,	[&nav](){ nav.push<GlassView>(); } },
 		{ "HackRF", 	ui::Color::cyan(),			&bitmap_icon_hackrf,	[this, &nav](){ hackrf_mode(nav); } },
 		//{ "About", 		ui::Color::cyan(),			nullptr,				[&nav](){ nav.push<AboutView>(); } }
 	});

sdcard/LOOKINGGLASS/PRESETS.TXT

@@ -0,0 +1,11 @@
+# INI,END,DESCRIPTION 
+# (Freq range in MHz, min separation 240MHz)
+# (Description up to 20 char)
+# (fields comma delimiter)
+260,500,315/433 MHz KEYFOBS
+2320,2560,BL / WIFI 2.4GHz
+5160,5900,WIFI 5GHz
+10,7250,FULL RANGE
+140,380,VHF MICS AND MARINE
+390,420,RADIOSONDES
+420,660,UHF MICS