Freqman UI (#1255)

* FreqmanDB direct file
* Clear UI for short lists
* Final touches on freqlist UI.
* Support vertical alignment in NewButton
* New buttons in FreqMan
* Wiring up UI to filewrapper actions
* Work around empty file

.github/workflows/changelog.py

@@ -1,19 +1,50 @@
 import os
 import re
 import sys
+import json
+from urllib.error import HTTPError
 
-raw_git = os.popen('git log next --since="24 hours" --pretty=format:"- %h - {USERNAME}*+%al-%an*: %s"').read()
+main_repo_url = "https://github.com/eried/portapack-mayhem.git"
+main_repo_identifier = "eried/portapack-mayhem"
+# ^^&^ change these if main repo changed
+
+os.system('gh repo set-default ' + main_repo_url)
+
+raw_git = os.popen('git log next --since="1200 hours" --pretty=format:"- ^%h^ - {USERNAME}*_%al_%an*: %s"').read()
+
+
+# ^ as github's rule, a real username can contains "-" but not "_" and "*", so use these two to seperate things.
+# ^ during test at 2023-07-10, %al could return 3 different types of values:
+# : 123+abc <<<< abc is real username
+# : def <<<< def is 3rd level domain of unhidden email, drop this, fetch info from github cli client
+# : note that github will probably change in the future
 
 
 def compute_username(line):
-    stripped = re.search(r'(?<=\*)(.*?)(?=\*)', line).group(0)
+    line_org = line
+    stripped = re.search(r'(?<=\*)(.*?)(?=\*)', line).group(0)  # get the string between "*" and "*"
+    now_item_hash = re.search(r'(?<=\^)(.*?)(?=\^)', line).group(0)  # get the string between "*" and "*"
+    stripped_org = stripped
+    stripped = re.search(r'(?<=\_)(.*?)(?=\_)', stripped).group(0)  # get the string between "_" and "_"
+    stripped_fallback = stripped
+    # now it's like "123+abc" or "def"
+
+    if ("+" in stripped):  # 123+abc
+        stripped = re.sub(r'^.*?\+', "", stripped)
+    elif not ("+" in stripped):  # maybe not real username, dropped, fetch from github cli client
+        fetched_now_item_json = os.popen(
+            'gh search commits repo:' + main_repo_identifier + ' --json author --hash ' + now_item_hash).read()
+        stripped = extract_first_login(fetched_now_item_json)
+        if stripped is False:  # 403
+            return "@" + stripped_fallback
+        elif stripped == "app/":  # user did their commit with github app
+            return "@" + stripped_fallback
+    else:  # exception and edge cases
+        return "@" + stripped_fallback
+
+    if stripped is None:  # if commit hash can't find AKA commit is only in fork
+        return "@" + stripped_fallback
 
-    pattern = re.compile("[$@+&?].*[$@+&?]")
-    if pattern.match(stripped):
-        stripped = re.sub("[$@+&?].*[$@+&?]", "", stripped)
-        stripped = re.match(r'.+?(?=-)', stripped).group(0)
-    else:
-        stripped = re.sub(r'^.*?-', "", stripped)
     return "@" + stripped
 
 
@@ -21,8 +52,31 @@ def compile_line(line):
     username = compute_username(line)
     line = re.sub(r'[*].*[*]', "", line)
     line = line.replace("{USERNAME}", username)
+    line = re.sub(r'\^', '', line, count=2)
+
     return line
 
 
+def extract_first_login(json_data):
+    if not json_data:  # if returned null
+        return None
+
+    try:
+        data = json.loads(json_data)
+
+        if isinstance(data, list) and len(data) > 0:
+            first_object = data[0]
+            if 'author' in first_object and 'login' in first_object['author']:
+                return first_object['author']['login']
+
+    except HTTPError as e:
+        if e.code == 403 and "API rate limit exceeded" in str(e):
+            return False
+    except json.decoder.JSONDecodeError:
+        return None
+
+    return None
+
+
 for row in raw_git.splitlines():
     print(compile_line(row))

.github/workflows/create_nightly_release.yml

@@ -47,6 +47,9 @@ jobs:
         run: mkdir ${{ github.workspace }}/build
       - name: Run the Docker image
         run: docker run -e VERSION_STRING=${{ steps.version_date.outputs.date }} -i -v ${{ github.workspace }}:/havoc portapack-dev
+      - name: Create Small SD Card ZIP - No World Map
+        run: |
+          mkdir -p sdcard/FIRMWARE && cp build/firmware/portapack-h1_h2-mayhem.bin sdcard/FIRMWARE/portapack-mayhem_${{ steps.version_date.outputs.date }}.bin && zip -r sdcard-no-map.zip sdcard
       - name: Download world map
         run: |
           wget https://github.com/eried/portapack-mayhem/releases/download/world_map/world_map.zip
@@ -60,6 +63,8 @@ jobs:
         run: |
           mkdir -p sdcard/FIRMWARE && cp build/firmware/portapack-h1_h2-mayhem.bin sdcard/FIRMWARE/portapack-mayhem_${{ steps.version_date.outputs.date }}.bin && zip -r sdcard.zip sdcard
       - name: Create changelog
+        env:
+          GH_TOKEN: ${{ secrets.GH_TOKEN }}
         run: |
           CHANGELOG=$(python3 .github/workflows/changelog.py)
           CHANGELOG="${CHANGELOG//'%'/'%25'}"
@@ -103,3 +108,13 @@ jobs:
           asset_path: ./sdcard.zip
           asset_name: mayhem_nightly_${{ steps.version_date.outputs.date }}_COPY_TO_SDCARD.zip
           asset_content_type: application/zip
+      - name: Upload SD Card Assets - No Map
+        id: upload-sd-card-asset-no-map 
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./sdcard-no-map.zip
+          asset_name: mayhem_nightly_${{ steps.version_date.outputs.date }}_COPY_TO_SDCARD-no-world-map.zip
+          asset_content_type: application/zip

.github/workflows/create_stable_release.yml

@@ -31,6 +31,9 @@ jobs:
         run: mkdir ${{ github.workspace }}/build
       - name: Run the Docker image
         run: docker run -e VERSION_STRING=${{ steps.version.outputs.version }} -i -v ${{ github.workspace }}:/havoc portapack-dev
+      - name: Create Small SD Card ZIP - No World Map
+        run: |
+          mkdir -p sdcard/FIRMWARE && cp build/firmware/portapack-h1_h2-mayhem.bin sdcard/FIRMWARE/portapack-mayhem_${{ steps.version.outputs.version }}.bin && zip -r sdcard-no-map.zip sdcard
       - name: Download world map
         run: |
           wget https://github.com/eried/portapack-mayhem/releases/download/world_map/world_map.zip
@@ -44,6 +47,8 @@ jobs:
         run: |
           mkdir -p sdcard/FIRMWARE && cp build/firmware/portapack-h1_h2-mayhem.bin sdcard/FIRMWARE/portapack-mayhem_${{ steps.version.outputs.version }}.bin && zip -r sdcard.zip sdcard
       - name: Create changelog
+        env:
+          GH_TOKEN: ${{ secrets.GH_TOKEN }}
         run: |
           CHANGELOG=$(python3 .github/workflows/stable_changelog.py ${{ steps.past_version.outputs.past_version }})
           CHANGELOG="${CHANGELOG//'%'/'%25'}"
@@ -96,4 +101,14 @@ jobs:
           asset_path: ./sdcard.zip
           asset_name: mayhem_${{ steps.version.outputs.version }}_COPY_TO_SDCARD.zip
           asset_content_type: application/zip
+      - name: Upload SD Card Assets - No Map
+        id: upload-sd-card-asset-no-map 
+        uses: actions/upload-release-asset@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          upload_url: ${{ steps.create_release.outputs.upload_url }}
+          asset_path: ./sdcard-no-map.zip
+          asset_name: mayhem_${{ steps.version.outputs.version }}_COPY_TO_SDCARD-no-world-map.zip
+          asset_content_type: application/zip
      

.github/workflows/past_version.txt

@@ -1 +1 @@
-v1.7.1
+v1.7.2

.github/workflows/stable_changelog.py

@@ -1,21 +1,52 @@
 import os
 import re
 import sys
+import json
+from urllib.error import HTTPError
 
 past_version = sys.argv[1]
 
-raw_git = os.popen('git log ' + past_version + '..next --pretty=format:"- %h - {USERNAME}*+%al-%an*: %s"').read()
+main_repo_url = "https://github.com/eried/portapack-mayhem.git"
+main_repo_identifier = "eried/portapack-mayhem"
+# ^^&^ change these if main repo changed
 
+os.system('gh repo set-default ' + main_repo_url)
+
+raw_git = os.popen('git log ' + past_version + '..next --pretty=format:"- ^%h^ - {USERNAME}*_%al_%an*: %s"').read()
+
+
+# ^ as github's rule, a real username can contains "-" but not "_" and "*", so use these two to seperate things
+
+# during test at 2023-07-10, %al could return 3 different types of values:
+# 123+abc <<<< abc is real username
+# def <<<< def is 3rd level domain of unhidden email, drop this, fetch info from github cli client
+# note that github will probably change in the future
 
 def compute_username(line):
-    stripped = re.search(r'(?<=\*)(.*?)(?=\*)', line).group(0)
+    line_org = line
+    stripped = re.search(r'(?<=\*)(.*?)(?=\*)', line).group(0)  # get the string between "*" and "*"
+    now_item_hash = re.search(r'(?<=\^)(.*?)(?=\^)', line).group(0)  # get the string between "*" and "*"
+    stripped_org = stripped
+    stripped = re.search(r'(?<=\_)(.*?)(?=\_)', stripped).group(0)  # get the string between "_" and "_"
+    stripped_fallback = stripped
+    # now it's like "123+abc" or "def"
+
+    if ("+" in stripped):  # 123+abc
+        stripped = re.sub(r'^.*?\+', "", stripped)
+    elif not ("+" in stripped):  # maybe not real username, dropped, fetch from github cli client
+        fetched_now_item_json = os.popen(
+            'gh search commits repo:' + main_repo_identifier + ' --json author --hash ' + now_item_hash).read()
+        stripped = extract_first_login(fetched_now_item_json)
+        if stripped is False:  # 403
+            return "@" + stripped_fallback
+        elif stripped == "app/":
+            return "@" + stripped_fallback
+    else:  # exception and edge cases
+        return "@" + stripped_fallback
+
+    if stripped is None:  # if commit hash can't find AKA commit is only in fork
+        return "@" + stripped_fallback
 
-    pattern = re.compile("[$@+&?].*[$@+&?]")
-    if pattern.match(stripped):
-        stripped = re.sub("[$@+&?].*[$@+&?]", "", stripped)
-        stripped = re.match(r'.+?(?=-)', stripped).group(0)
-    else:
-        stripped = re.sub(r'^.*?-', "", stripped)
     return "@" + stripped
 
 
@@ -23,8 +54,31 @@ def compile_line(line):
     username = compute_username(line)
     line = re.sub(r'[*].*[*]', "", line)
     line = line.replace("{USERNAME}", username)
+    line = re.sub(r'\^', '', line, count=2)
+
     return line
 
 
+def extract_first_login(json_data):
+    if not json_data:  # if returned null
+        return None
+
+    try:
+        data = json.loads(json_data)
+
+        if isinstance(data, list) and len(data) > 0:
+            first_object = data[0]
+            if 'author' in first_object and 'login' in first_object['author']:
+                return first_object['author']['login']
+
+    except HTTPError as e:
+        if e.code == 403 and "API rate limit exceeded" in str(e):
+            return False
+    except json.decoder.JSONDecodeError:
+        return None
+
+    return None
+
+
 for row in raw_git.splitlines():
     print(compile_line(row))

.github/workflows/version.txt

@@ -1 +1 @@
-v1.7.2
+v1.7.3

firmware/application/CMakeLists.txt

@@ -177,6 +177,7 @@ set(CPPSRC
 	event_m0.cpp
 	file_reader.cpp
 	file.cpp
+	freqman_db.cpp
 	freqman.cpp
 	io_file.cpp
 	io_wave.cpp
@@ -184,6 +185,7 @@ set(CPPSRC
 	irq_lcd_frame.cpp
 	irq_rtc.cpp
 	log_file.cpp
+	metadata_file.cpp
 	portapack.cpp
 	qrcodegen.cpp
 	radio.cpp
@@ -233,6 +235,7 @@ set(CPPSRC
 	ui/ui_styles.cpp
 	ui/ui_tabview.cpp
 	ui/ui_textentry.cpp
+	ui/ui_tone_key.cpp
 	ui/ui_transmitter.cpp
 	apps/ui_about_simple.cpp
 	apps/ui_adsb_rx.cpp
@@ -286,7 +289,7 @@ set(CPPSRC
 	apps/ert_app.cpp
 	apps/lge_app.cpp
 	apps/pocsag_app.cpp
-	apps/replay_app.cpp
+	# apps/replay_app.cpp
 	apps/ui_playlist.cpp
 	apps/gps_sim_app.cpp
 	apps/soundboard_app.cpp

firmware/application/app_settings.cpp

@@ -114,6 +114,8 @@ ResultCode load_settings(const std::string& app_name, AppSettings& settings) {
 
     if (flags_enabled(settings.mode, Mode::RX)) {
         read_setting(*data, setting::rx_frequency, settings.rx_frequency);
+        read_setting(*data, setting::lna, settings.lna);
+        read_setting(*data, setting::vga, settings.vga);
         read_setting(*data, setting::rx_amp, settings.rx_amp);
         read_setting(*data, setting::modulation, settings.modulation);
         read_setting(*data, setting::am_config_index, settings.am_config_index);
@@ -124,8 +126,6 @@ ResultCode load_settings(const std::string& app_name, AppSettings& settings) {
 
     read_setting(*data, setting::baseband_bandwidth, settings.baseband_bandwidth);
     read_setting(*data, setting::sampling_rate, settings.sampling_rate);
-    read_setting(*data, setting::lna, settings.lna);
-    read_setting(*data, setting::vga, settings.vga);
     read_setting(*data, setting::step, settings.step);
     read_setting(*data, setting::volume, settings.volume);
 
@@ -153,6 +153,8 @@ ResultCode save_settings(const std::string& app_name, AppSettings& settings) {
 
     if (flags_enabled(settings.mode, Mode::RX)) {
         write_setting(settings_file, setting::rx_frequency, settings.rx_frequency);
+        write_setting(settings_file, setting::lna, settings.lna);
+        write_setting(settings_file, setting::vga, settings.vga);
         write_setting(settings_file, setting::rx_amp, settings.rx_amp);
         write_setting(settings_file, setting::modulation, settings.modulation);
         write_setting(settings_file, setting::am_config_index, settings.am_config_index);
@@ -163,8 +165,6 @@ ResultCode save_settings(const std::string& app_name, AppSettings& settings) {
 
     write_setting(settings_file, setting::baseband_bandwidth, settings.baseband_bandwidth);
     write_setting(settings_file, setting::sampling_rate, settings.sampling_rate);
-    write_setting(settings_file, setting::lna, settings.lna);
-    write_setting(settings_file, setting::vga, settings.vga);
     write_setting(settings_file, setting::step, settings.step);
     write_setting(settings_file, setting::volume, settings.volume);
 
@@ -173,6 +173,7 @@ ResultCode save_settings(const std::string& app_name, AppSettings& settings) {
 
 void copy_to_radio_model(const AppSettings& settings) {
     // NB: Don't actually adjust the radio here or it will hang.
+    // Specifically 'modulation' which requires a running baseband.
 
     if (flags_enabled(settings.mode, Mode::TX)) {
         if (!flags_enabled(settings.options, Options::UseGlobalTargetFrequency))
@@ -203,14 +204,10 @@ void copy_from_radio_model(AppSettings& settings) {
     if (flags_enabled(settings.mode, Mode::TX)) {
         settings.tx_frequency = transmitter_model.target_frequency();
         settings.baseband_bandwidth = transmitter_model.baseband_bandwidth();
+        settings.sampling_rate = transmitter_model.sampling_rate();
         settings.tx_amp = transmitter_model.rf_amp();
         settings.tx_gain = transmitter_model.tx_gain();
         settings.channel_bandwidth = transmitter_model.channel_bandwidth();
-
-        // TODO: Do these make sense for TX?
-        settings.sampling_rate = transmitter_model.sampling_rate();
-        settings.lna = transmitter_model.lna();
-        settings.vga = transmitter_model.vga();
     }
 
     if (flags_enabled(settings.mode, Mode::RX)) {

firmware/application/apps/analog_audio_app.cpp

@@ -31,8 +31,6 @@
 #include "string_format.hpp"
 #include "utility.hpp"
 
-#include "debug.hpp"
-
 using namespace portapack;
 using namespace tonekey;
 
@@ -135,8 +133,7 @@ SPECOptionsView::SPECOptionsView(
 AnalogAudioView::AnalogAudioView(
     NavigationView& nav)
     : nav_(nav) {
-    // A baseband image _must_ be running before
-    // interacting with the waterfall view.
+    // A baseband image _must_ be running before add waterfall view.
     baseband::run_image(portapack::spi_flash::image_tag_wideband_spectrum);
 
     add_children({&rssi,
@@ -194,6 +191,15 @@ AnalogAudioView::AnalogAudioView(
     on_modulation_changed(modulation);
 }
 
+AnalogAudioView::AnalogAudioView(
+    NavigationView& nav,
+    ReceiverModel::settings_t override)
+    : AnalogAudioView(nav) {
+    // TODO: Which other settings make sense to override?
+    on_frequency_step_changed(override.frequency_step);
+    options_modulation.set_by_value(toUType(override.mode));
+}
+
 size_t AnalogAudioView::get_spec_bw_index() {
     return spec_bw_index;
 }
@@ -404,24 +410,7 @@ void AnalogAudioView::update_modulation(ReceiverModel::Mode modulation) {
 }
 
 void AnalogAudioView::handle_coded_squelch(uint32_t value) {
-    float diff, min_diff = value;
-    size_t min_idx{0};
-    size_t c;
-
-    // Find nearest match
-    for (c = 0; c < tone_keys.size(); c++) {
-        diff = abs(((float)value / 100.0) - tone_keys[c].second);
-        if (diff < min_diff) {
-            min_idx = c;
-            min_diff = diff;
-        }
-    }
-
-    // Arbitrary confidence threshold
-    if (min_diff < 40)
-        text_ctcss.set("CTCSS " + tone_keys[min_idx].first);
-    else
-        text_ctcss.set("???");
+    text_ctcss.set(tone_key_string_by_value(value, text_ctcss.parent_rect().width() / 8));
 }
 
 } /* namespace ui */

firmware/application/apps/analog_audio_app.hpp

@@ -71,10 +71,10 @@ class NBFMOptionsView : public View {
         }};
 
     Text text_squelch{
-        {9 * 8, 0 * 16, 8 * 8, 1 * 16},
+        {7 * 8, 0 * 16, 8 * 8, 1 * 16},
         "SQ   /99"};
     NumberField field_squelch{
-        {12 * 8, 0 * 16},
+        {10 * 8, 0 * 16},
         2,
         {0, 99},
         1,
@@ -138,6 +138,7 @@ class SPECOptionsView : public View {
 class AnalogAudioView : public View {
    public:
     AnalogAudioView(NavigationView& nav);
+    AnalogAudioView(NavigationView& nav, ReceiverModel::settings_t override);
     ~AnalogAudioView();
 
     void set_parent_rect(Rect new_parent_rect) override;
@@ -200,7 +201,7 @@ class AnalogAudioView : public View {
         {28 * 8, 0 * 16}};
 
     Text text_ctcss{
-        {19 * 8, 1 * 16, 11 * 8, 1 * 16},
+        {16 * 8, 1 * 16, 14 * 8, 1 * 16},
         ""};
 
     std::unique_ptr<Widget> options_widget{};
@@ -213,7 +214,7 @@ class AnalogAudioView : public View {
         4096,
         4};
 
-    spectrum::WaterfallWidget waterfall{true};
+    spectrum::WaterfallView waterfall{true};
 
     void on_baseband_bandwidth_changed(uint32_t bandwidth_hz);
     void on_modulation_changed(ReceiverModel::Mode modulation);

firmware/application/apps/capture_app.cpp

@@ -30,6 +30,7 @@ namespace ui {
 
 CaptureAppView::CaptureAppView(NavigationView& nav)
     : nav_{nav} {
+    freqman_set_bandwidth_option(SPEC_MODULATION, option_bandwidth);
     baseband::run_image(portapack::spi_flash::image_tag_capture);
 
     add_children({
@@ -59,41 +60,8 @@ CaptureAppView::CaptureAppView(NavigationView& nav)
         /* ex. recording 500kHz BW to .C16 file, base_rate clock 500kHz x2(I,Q) x 2 bytes (int signed) =2MB/sec rate SD Card  */
         waterfall.on_hide();
 
-        /* Set up proper anti aliasing BPF bandwith in MAX2837 before ADC sampling according to the new added BW Options . */
-        switch (sampling_rate) {  // we use the var fs (sampling_rate) , to set up BPF aprox < fs_max/2 by Nyquist theorem.
-
-            case 0 ... 2000000:                                  // BW Captured range  (0 <= 250kHz max )  fs = 8 x 250 kHz
-                anti_alias_baseband_bandwidth_filter = 1750000;  // Minimum BPF MAX2837 for all those lower BW options.
-                break;
-
-            case 4000000 ... 6000000:                            // BW capture  range (500k ... 750kHz max )  fs_max = 8 x 750kHz = 6Mhz
-                                                                 //  BW 500k ... 750kHz   ,  ex. 500kHz   (fs = 8*BW =  4Mhz) , BW 600kHz (fs = 4,8Mhz) , BW  750 kHz (fs = 6Mhz)
-                anti_alias_baseband_bandwidth_filter = 2500000;  // in some IC MAX2837 appear 2250000 , but both works similar.
-                break;
-
-            case 8800000:  // BW capture 1,1Mhz  fs = 8 x 1,1Mhz = 8,8Mhz . (1Mhz showed slightly higher noise background).
-                anti_alias_baseband_bandwidth_filter = 3500000;
-                break;
-
-            case 14000000:  // BW capture 1,75Mhz  , fs = 8 x 1,75Mhz = 14Mhz
-                            // good BPF, good matching, but LCD making flicker , refresh rate should be < 20 Hz , but reasonable picture
-                anti_alias_baseband_bandwidth_filter = 5000000;
-                break;
-
-            case 16000000:  // BW capture 2Mhz  , fs = 8 x 2Mhz = 16Mhz
-                            // good BPF, good matching, but LCD making flicker , refresh rate should be < 20 Hz , but reasonable picture
-                anti_alias_baseband_bandwidth_filter = 6000000;
-                break;
-
-            case 20000000:  // BW capture 2,5Mhz  , fs= 8 x 2,5 Mhz = 20Mhz
-                            // good BPF, good matching, but LCD making flicker , refresh rate should be < 20 Hz , but reasonable picture
-                anti_alias_baseband_bandwidth_filter = 7000000;
-                break;
-
-            default:  // BW capture 2,75Mhz, fs = 8 x 2,75Mhz= 22Mhz max ADC sampling) and others.
-                      //  We tested also 9Mhz FPB stightly too much noise floor, better 8Mhz
-                anti_alias_baseband_bandwidth_filter = 8000000;
-        }
+        /* Set up proper anti aliasing BPF bandwith in MAX2837 before ADC sampling according to the new added BW Options. */
+        auto anti_alias_baseband_bandwidth_filter = filter_bandwidth_for_sampling_rate(sampling_rate);
 
         record_view.set_sampling_rate(sampling_rate);
         receiver_model.set_sampling_rate(sampling_rate);
@@ -103,8 +71,6 @@ CaptureAppView::CaptureAppView(NavigationView& nav)
     };
 
     option_bandwidth.set_selected_index(7);  // Preselected default option 500kHz.
-
-    receiver_model.set_modulation(ReceiverModel::Mode::Capture);
     receiver_model.enable();
 
     record_view.on_error = [&nav](std::string message) {
@@ -113,8 +79,6 @@ CaptureAppView::CaptureAppView(NavigationView& nav)
 }
 
 CaptureAppView::~CaptureAppView() {
-    // Most other apps can't handle "Capture" mode, set to something standard.
-    receiver_model.set_modulation(ReceiverModel::Mode::WidebandFMAudio);
     receiver_model.disable();
     baseband::shutdown();
 }

firmware/application/apps/capture_app.hpp

@@ -31,23 +31,7 @@
 #include "ui_spectrum.hpp"
 #include "app_settings.hpp"
 #include "radio_state.hpp"
-
-#define BW_OPTIONS                                                                                                             \
-    {"  8k5", 8500},                                                                                                           \
-        {"  11k", 11000},                                                                                                      \
-        {"  16k", 16000},                                                                                                      \
-        {"  25k", 25000},                                                                                                      \
-        {"  50k", 50000},                                                                                                      \
-        {" 100k", 100000},                                                                                                     \
-        {" 250k", 250000},                                                                                                     \
-        {" 500k", 500000}, /* Previous Limit bandwith Option with perfect micro SD write .C16 format operaton.*/               \
-        {" 600k", 600000}, /* That extended option is still possible to record with FW version Mayhem v1.41 (< 2,5MB/sec) */   \
-        {" 750k", 750000}, /* From this BW onwards, the LCD is ok, but the recorded file is decimated, (not real file size) */ \
-        {"1100k", 1100000},                                                                                                    \
-        {"1750k", 1750000},                                                                                                    \
-        {"2000k", 2000000},                                                                                                    \
-        {"2500k", 2500000},                                                                                                    \
-        {"2750k", 2750000},  // That is our max Capture option, to keep using later / 8 decimation (22Mhz sampling  ADC)
+#include "freqman.hpp"
 
 namespace ui {
 
@@ -66,13 +50,12 @@ class CaptureAppView : public View {
     static constexpr ui::Dim header_height = 3 * 16;
 
     NavigationView& nav_;
-    RxRadioState radio_state_{};
+    RxRadioState radio_state_{ReceiverModel::Mode::Capture};
     app_settings::SettingsManager settings_{
         "rx_capture", app_settings::Mode::RX,
         app_settings::Options::UseGlobalTargetFrequency};
 
     uint32_t sampling_rate = 0;
-    uint32_t anti_alias_baseband_bandwidth_filter = 2500000;
 
     Labels labels{
         {{0 * 8, 1 * 16}, "Rate:", Color::light_grey()},
@@ -103,7 +86,7 @@ class CaptureAppView : public View {
     OptionsField option_bandwidth{
         {5 * 8, 1 * 16},
         5,
-        {BW_OPTIONS}};
+        {}};
 
     RecordView record_view{
         {0 * 8, 2 * 16, 30 * 8, 1 * 16},
@@ -113,7 +96,7 @@ class CaptureAppView : public View {
         16384,
         3};
 
-    spectrum::WaterfallWidget waterfall{};
+    spectrum::WaterfallView waterfall{};
 };
 
 } /* namespace ui */

firmware/application/apps/ert_app.hpp

@@ -130,8 +130,7 @@ class ERTAppView : public View {
 
     RxRadioState radio_state_{
         2500000 /* bandwidth */,
-        4194304 /* sampling rate */
-    };
+        4194304 /* sampling rate */};
     app_settings::SettingsManager settings_{
         "rx_ert", app_settings::Mode::RX};
 

firmware/application/apps/gps_sim_app.cpp

@@ -26,6 +26,7 @@
 
 #include "ui_fileman.hpp"
 #include "io_file.hpp"
+#include "metadata_file.hpp"
 #include "utility.hpp"
 
 #include "baseband_api.hpp"
@@ -33,6 +34,7 @@
 #include "portapack_persistent_memory.hpp"
 
 using namespace portapack;
+namespace fs = std::filesystem;
 
 namespace ui {
 
@@ -40,51 +42,38 @@ void GpsSimAppView::set_ready() {
     ready_signal = true;
 }
 
-void GpsSimAppView::on_file_changed(std::filesystem::path new_file_path) {
-    File data_file, info_file;
-    char file_data[257];
+void GpsSimAppView::on_file_changed(const fs::path& new_file_path) {
+    file_path = fs::path(u"/") + new_file_path;
+    File::Size file_size{};
 
-    // Get file size
-    auto data_open_error = data_file.open("/" + new_file_path.string());
-    if (data_open_error.is_valid()) {
-        file_error();
-        return;
-    }
-
-    file_path = new_file_path;
-
-    // Get original record frequency if available
-    std::filesystem::path info_file_path = file_path;
-    info_file_path.replace_extension(u".TXT");
-
-    sample_rate = 500000;
-
-    auto info_open_error = info_file.open("/" + info_file_path.string());
-    if (!info_open_error.is_valid()) {
-        memset(file_data, 0, 257);
-        auto read_size = info_file.read(file_data, 256);
-        if (!read_size.is_error()) {
-            auto pos1 = strstr(file_data, "center_frequency=");
-            if (pos1) {
-                pos1 += 17;
-                field_frequency.set_value(strtoll(pos1, nullptr, 10));
-            }
-
-            auto pos2 = strstr(file_data, "sample_rate=");
-            if (pos2) {
-                pos2 += 12;
-                sample_rate = strtoll(pos2, nullptr, 10);
-            }
+    {  // Get the size of the data file.
+        File data_file;
+        auto error = data_file.open(file_path);
+        if (error) {
+            file_error();
+            return;
         }
+
+        file_size = data_file.size();
     }
 
+    // Get original record frequency if available.
+    auto metadata_path = get_metadata_path(file_path);
+    auto metadata = read_metadata_file(metadata_path);
+
+    if (metadata) {
+        field_frequency.set_value(metadata->center_frequency);
+        sample_rate = metadata->sample_rate;
+    } else {
+        sample_rate = 500000;
+    }
+
+    // UI Fixup.
     text_sample_rate.set(unit_auto_scale(sample_rate, 3, 1) + "Hz");
-
-    auto file_size = data_file.size();
-    auto duration = ms_duration(file_size, sample_rate, 2);
-
     progressbar.set_max(file_size / 1024);
-    text_filename.set(file_path.filename().string().substr(0, 12));
+    text_filename.set(truncate(file_path.filename().string(), 12));
+
+    auto duration = ms_duration(file_size, sample_rate, 2);
     text_duration.set(to_string_time_ms(duration));
 
     button_play.focus();

firmware/application/apps/gps_sim_app.hpp

@@ -71,7 +71,7 @@ class GpsSimAppView : public View {
     const size_t read_size{16384};
     const size_t buffer_count{3};
 
-    void on_file_changed(std::filesystem::path new_file_path);
+    void on_file_changed(const std::filesystem::path& new_file_path);
     void on_tx_progress(const uint32_t progress);
 
     void toggle();
@@ -124,7 +124,7 @@ class GpsSimAppView : public View {
         Color::green(),
         Color::black()};
 
-    spectrum::WaterfallWidget waterfall{};
+    spectrum::WaterfallView waterfall{};
 
     MessageHandlerRegistration message_handler_replay_thread_error{
         Message::ID::ReplayThreadDone,

firmware/application/apps/pocsag_app.cpp

@@ -71,7 +71,6 @@ POCSAGAppView::POCSAGAppView(NavigationView& nav)
     if (!settings_.loaded())
         field_frequency.set_value(initial_target_frequency);
 
-    receiver_model.set_modulation(ReceiverModel::Mode::NarrowbandFMAudio);
     receiver_model.enable();
 
     // TODO: app setting instead?

firmware/application/apps/replay_app.cpp

@@ -27,11 +27,13 @@
 #include "ui_fileman.hpp"
 #include "io_file.hpp"
 #include "baseband_api.hpp"
+#include "metadata_file.hpp"
 #include "portapack.hpp"
 #include "portapack_persistent_memory.hpp"
 #include "utility.hpp"
 
 using namespace portapack;
+namespace fs = std::filesystem;
 
 namespace ui {
 
@@ -39,51 +41,41 @@ void ReplayAppView::set_ready() {
     ready_signal = true;
 }
 
-void ReplayAppView::on_file_changed(std::filesystem::path new_file_path) {
-    File data_file, info_file;
-    char file_data[257];
+void ReplayAppView::on_file_changed(const fs::path& new_file_path) {
+    file_path = fs::path(u"/") + new_file_path;
+    File::Size file_size{};
 
-    // Get file size
-    auto data_open_error = data_file.open("/" + new_file_path.string());
-    if (data_open_error.is_valid()) {
-        file_error();
-        return;
-    }
-
-    file_path = new_file_path;
-
-    // Get original record frequency if available
-    std::filesystem::path info_file_path = file_path;
-    info_file_path.replace_extension(u".TXT");
-
-    sample_rate = 500000;
-
-    auto info_open_error = info_file.open("/" + info_file_path.string());
-    if (!info_open_error.is_valid()) {
-        memset(file_data, 0, 257);
-        auto read_size = info_file.read(file_data, 256);
-        if (!read_size.is_error()) {
-            auto pos1 = strstr(file_data, "center_frequency=");
-            if (pos1) {
-                pos1 += 17;
-                field_frequency.set_value(strtoll(pos1, nullptr, 10));
-            }
-
-            auto pos2 = strstr(file_data, "sample_rate=");
-            if (pos2) {
-                pos2 += 12;
-                sample_rate = strtoll(pos2, nullptr, 10);
-            }
+    {  // Get the size of the data file.
+        File data_file;
+        auto error = data_file.open(file_path);
+        if (error) {
+            file_error();
+            return;
         }
+
+        file_size = data_file.size();
     }
 
+    // Get original record frequency if available.
+    auto metadata_path = get_metadata_path(file_path);
+    auto metadata = read_metadata_file(metadata_path);
+
+    if (metadata) {
+        field_frequency.set_value(metadata->center_frequency);
+        sample_rate = metadata->sample_rate;
+    } else {
+        // TODO: This is interesting because it implies that the
+        // The capture will just be replayed at the freq set on the
+        // FrequencyField. Is that an intentional behavior?
+        sample_rate = 500000;
+    }
+
+    // UI Fixup.
     text_sample_rate.set(unit_auto_scale(sample_rate, 3, 0) + "Hz");
-
-    auto file_size = data_file.size();
-    auto duration = ms_duration(file_size, sample_rate, 4);
-
     progressbar.set_max(file_size);
-    text_filename.set(file_path.filename().string().substr(0, 12));
+    text_filename.set(truncate(file_path.filename().string(), 12));
+
+    auto duration = ms_duration(file_size, sample_rate, 4);
     text_duration.set(to_string_time_ms(duration));
 
     button_play.focus();
@@ -200,7 +192,7 @@ ReplayAppView::ReplayAppView(
 
     button_open.on_select = [this, &nav](Button&) {
         auto open_view = nav.push<FileLoadView>(".C16");
-        open_view->on_changed = [this](std::filesystem::path new_file_path) {
+        open_view->on_changed = [this](fs::path new_file_path) {
             on_file_changed(new_file_path);
         };
     };

firmware/application/apps/replay_app.hpp

@@ -67,7 +67,7 @@ class ReplayAppView : public View {
     const size_t read_size{16384};
     const size_t buffer_count{3};
 
-    void on_file_changed(std::filesystem::path new_file_path);
+    void on_file_changed(const std::filesystem::path& new_file_path);
     void on_tx_progress(const uint32_t progress);
 
     void toggle();
@@ -121,7 +121,7 @@ class ReplayAppView : public View {
         Color::green(),
         Color::black()};
 
-    spectrum::WaterfallWidget waterfall{};
+    spectrum::WaterfallView waterfall{};
 
     MessageHandlerRegistration message_handler_replay_thread_error{
         Message::ID::ReplayThreadDone,

firmware/application/apps/soundboard_app.cpp

@@ -25,6 +25,7 @@
 #include "soundboard_app.hpp"
 #include "string_format.hpp"
 #include "tonesets.hpp"
+#include "ui_tone_key.hpp"
 
 using namespace tonekey;
 using namespace portapack;

firmware/application/apps/soundboard_app.hpp

@@ -29,7 +29,6 @@
 #include "baseband_api.hpp"
 #include "lfsr_random.hpp"
 #include "io_wave.hpp"
-#include "tone_key.hpp"
 #include "app_settings.hpp"
 #include "radio_state.hpp"
 

firmware/application/apps/spectrum_analysis_app.hpp

@@ -32,7 +32,7 @@ class SpectrumAnalysisModel {
 
 namespace ui {
 
-class SpectrumAnalysisView : public spectrum::WaterfallWidget {
+class SpectrumAnalysisView : public spectrum::WaterfallView {
    public:
    private:
     SpectrumAnalysisModel model;

firmware/application/apps/tpms_app.hpp

@@ -106,8 +106,7 @@ class TPMSAppView : public View {
 
     RxRadioState radio_state_{
         1750000 /* bandwidth */,
-        2457600 /* sampling rate */
-    };
+        2457600 /* sampling rate */};
     app_settings::SettingsManager settings_{
         "rx_tpms", app_settings::Mode::RX};
 

firmware/application/apps/ui_adsb_rx.cpp

@@ -468,7 +468,8 @@ void ADSBRxView::updateDetailsAndMap(int ageStep) {
                 details_view->update(entry);
             }
             // Store if the view is present and the list isn't full
-            else if (otherMarkersCanBeSent && (markerStored != MARKER_LIST_FULL) && entry.pos.valid && (entry.age_state <= 2)) {
+            // Note -- Storing the selected entry too, in case map panning occurs
+            if (otherMarkersCanBeSent && (markerStored != MARKER_LIST_FULL) && entry.pos.valid && (entry.age_state <= 2)) {
                 marker.lon = entry.pos.longitude;
                 marker.lat = entry.pos.latitude;
                 marker.angle = entry.velo.heading;
@@ -512,8 +513,7 @@ ADSBRxView::ADSBRxView(NavigationView& nav) {
 
     baseband::set_adsb();
 
-    receiver_model.set_target_frequency(1090000000);
-    receiver_model.set_modulation(ReceiverModel::Mode::SpectrumAnalysis);
+    receiver_model.set_target_frequency(1'090'000'000);
     receiver_model.enable();
 }
 

firmware/application/apps/ui_adsb_rx.hpp

@@ -343,8 +343,8 @@ class ADSBRxView : public View {
    private:
     RxRadioState radio_state_{
         2500000 /* bandwidth */,
-        2000000 /* sampling rate */
-    };
+        2000000 /* sampling rate */,
+        ReceiverModel::Mode::SpectrumAnalysis};
     app_settings::SettingsManager settings_{
         "rx_adsb", app_settings::Mode::RX};
 

firmware/application/apps/ui_afsk_rx.cpp

@@ -91,7 +91,6 @@ AFSKRxView::AFSKRxView(NavigationView& nav)
     audio::set_rate(audio::Rate::Hz_24000);
     audio::output::start();
 
-    receiver_model.set_modulation(ReceiverModel::Mode::NarrowbandFMAudio);
     receiver_model.enable();
 }
 

firmware/application/apps/ui_aprs_rx.cpp

@@ -119,7 +119,6 @@ APRSRxView::APRSRxView(NavigationView& nav, Rect parent_rect)
     audio::set_rate(audio::Rate::Hz_24000);
     audio::output::start();
 
-    receiver_model.set_modulation(ReceiverModel::Mode::NarrowbandFMAudio);
     receiver_model.enable();
 }
 

firmware/application/apps/ui_btle_rx.cpp

@@ -76,7 +76,6 @@ BTLERxView::BTLERxView(NavigationView& nav)
     audio::set_rate(audio::Rate::Hz_24000);
     audio::output::start();
 
-    receiver_model.set_modulation(ReceiverModel::Mode::WidebandFMAudio);
     receiver_model.enable();
 }
 

firmware/application/apps/ui_btle_rx.hpp

@@ -51,8 +51,8 @@ class BTLERxView : public View {
     NavigationView& nav_;
     RxRadioState radio_state_{
         4000000 /* bandwidth */,
-        4000000 /* sampling rate */
-    };
+        4000000 /* sampling rate */,
+        ReceiverModel::Mode::WidebandFMAudio};
     app_settings::SettingsManager settings_{
         "rx_btle", app_settings::Mode::RX};
 

firmware/application/apps/ui_debug.cpp

@@ -30,6 +30,9 @@
 #include "audio.hpp"
 
 #include "ui_sd_card_debug.hpp"
+#include "ui_font_fixed_8x16.hpp"
+#include "ui_styles.hpp"
+#include "ui_painter.hpp"
 
 #include "portapack.hpp"
 #include "portapack_persistent_memory.hpp"
@@ -248,6 +251,7 @@ void ControlsSwitchesWidget::on_show() {
 
 bool ControlsSwitchesWidget::on_key(const KeyEvent key) {
     key_event_mask = 1 << toUType(key);
+    long_press_key_event_mask = switch_long_press_occurred((size_t)key) ? key_event_mask : 0;
     return true;
 }
 
@@ -325,6 +329,14 @@ void ControlsSwitchesWidget::paint(Painter& painter) {
 
         switches_event >>= 1;
     }
+
+    switches_event = long_press_key_event_mask;
+    for (const auto r : events_rects) {
+        if (switches_event & 1)
+            painter.fill_rectangle(r + pos, Color::cyan());
+
+        switches_event >>= 1;
+    }
 }
 
 void ControlsSwitchesWidget::on_frame_sync() {
@@ -335,12 +347,21 @@ void ControlsSwitchesWidget::on_frame_sync() {
 
 DebugControlsView::DebugControlsView(NavigationView& nav) {
     add_children({
-        &text_title,
+        &labels,
         &switches_widget,
+        &options_switches_mode,
         &button_done,
     });
 
-    button_done.on_select = [&nav](Button&) { nav.pop(); };
+    button_done.on_select = [&nav](Button&) {
+        switches_long_press_enable(0);
+        nav.pop();
+    };
+
+    options_switches_mode.on_change = [this](size_t, OptionsField::value_t v) {
+        (void)v;
+        switches_long_press_enable(options_switches_mode.selected_index_value());
+    };
 }
 
 void DebugControlsView::focus() {
@@ -383,6 +404,8 @@ DebugMenuView::DebugMenuView(NavigationView& nav) {
         {"Temperature", ui::Color::dark_cyan(), &bitmap_icon_temperature, [&nav]() { nav.push<TemperatureView>(); }},
         {"Buttons Test", ui::Color::dark_cyan(), &bitmap_icon_controls, [&nav]() { nav.push<DebugControlsView>(); }},
         {"P.Memory", ui::Color::dark_cyan(), &bitmap_icon_memory, [&nav]() { nav.push<DebugPmemView>(); }},
+        {"Fonts Viewer", ui::Color::dark_cyan(), &bitmap_icon_notepad, [&nav]() { nav.push<DebugFontsView>(); }},
+        {"Debug Dump", ui::Color::dark_cyan(), &bitmap_icon_memory, [&nav]() { portapack::persistent_memory::debug_dump(); }},
     });
     set_max_rows(2);  // allow wider buttons
 }
@@ -443,6 +466,43 @@ uint32_t DebugPmemView::registers_widget_feed(const size_t register_number) {
     return data.regfile[(page_size * page + register_number) / 4] >> (register_number % 4 * 8);
 }
 
+/* DebugFontsView *******************************************************/
+
+uint16_t DebugFontsView::display_font(Painter& painter, uint16_t y_offset, const Style* font_style, std::string_view font_name) {
+    auto char_width{font_style->font.char_width()};
+    auto char_height{font_style->font.line_height()};
+    auto cpl{((screen_width / char_width) - 6) & 0xF8};  // Display a multiple of 8 characters per line
+    uint16_t line_pos{y_offset};
+
+    painter.draw_string({0, y_offset}, *font_style, font_name);
+
+    // Displaying ASCII+extended characters from 0x20 to 0xFF
+    for (uint8_t c = 0; c <= 0xDF; c++) {
+        line_pos = y_offset + ((c / cpl) + 2) * char_height;
+
+        if ((c % cpl) == 0)
+            painter.draw_string({0, line_pos}, *font_style, "Ox" + to_string_hex(c + 0x20, 2));
+
+        painter.draw_char({((c % cpl) + 5) * char_width, line_pos}, *font_style, (char)(c + 0x20));
+    }
+
+    return line_pos + char_height;
+}
+
+void DebugFontsView::paint(Painter& painter) {
+    int16_t line_pos;
+
+    line_pos = display_font(painter, 32, &Styles::white, "Fixed 8x16");
+    display_font(painter, line_pos + 16, &Styles::white_small, "Fixed 5x8");
+}
+
+DebugFontsView::DebugFontsView(NavigationView& nav)
+    : nav_{nav} {
+    set_focusable(true);
+}
+
+/* DebugLCRView *******************************************************/
+
 /*DebugLCRView::DebugLCRView(NavigationView& nav, std::string lcr_string) {
 
         std::string debug_text;

firmware/application/apps/ui_debug.hpp

@@ -31,6 +31,7 @@
 #include "rffc507x.hpp"
 #include "portapack.hpp"
 #include "memory_map.hpp"
+#include "irq_controls.hpp"
 
 #include <functional>
 #include <utility>
@@ -220,7 +221,8 @@ class ControlsSwitchesWidget : public Widget {
     ControlsSwitchesWidget(
         Rect parent_rect)
         : Widget{parent_rect},
-          key_event_mask(0) {
+          key_event_mask(0),
+          long_press_key_event_mask{0} {
         set_focusable(true);
     }
 
@@ -231,6 +233,7 @@ class ControlsSwitchesWidget : public Widget {
 
    private:
     uint8_t key_event_mask;
+    uint8_t long_press_key_event_mask;
 
     MessageHandlerRegistration message_handler_frame_sync{
         Message::ID::DisplayFrameSync,
@@ -250,15 +253,22 @@ class DebugControlsView : public View {
     std::string title() const override { return "Buttons Test"; };
 
    private:
-    Text text_title{
-        {64, 16, 184, 16},
-        "Controls State",
-    };
+    Labels labels{
+        {{8 * 8, 1 * 16}, "Controls State", Color::white()},
+        {{0 * 8, 14 * 16}, "Long-Press Mode:", Color::grey()}};
 
     ControlsSwitchesWidget switches_widget{
         {80, 80, 80, 112},
     };
 
+    OptionsField options_switches_mode{
+        {17 * 8, 14 * 16},
+        8,
+        {
+            {"Disabled", 0},
+            {"Enabled", 0xFF},  // all KeyEvent bits to long-press mode
+        }};
+
     Button button_done{
         {72, 264, 96, 24},
         "Done"};
@@ -300,6 +310,17 @@ class DebugPmemView : public View {
     uint32_t registers_widget_feed(const size_t register_number);
 };
 
+class DebugFontsView : public View {
+   public:
+    DebugFontsView(NavigationView& nav);
+    void paint(Painter& painter) override;
+    std::string title() const override { return "Fonts"; };
+
+   private:
+    uint16_t display_font(Painter& painter, uint16_t y_offset, const Style* font_style, std::string_view font_name);
+    NavigationView& nav_;
+};
+
 /*class DebugLCRView : public View {
 public:
         DebugLCRView(NavigationView& nav, std::string lcrstring);

firmware/application/apps/ui_dfu_menu.cpp

@@ -22,6 +22,7 @@
 #include "ui_dfu_menu.hpp"
 #include "portapack_shared_memory.hpp"
 #include "performance_counter.hpp"
+#include "portapack.hpp"
 
 namespace ui {
 
@@ -80,4 +81,57 @@ void DfuMenu::paint(Painter& painter) {
         ui::Color::dark_cyan());
 }
 
+DfuMenu2::DfuMenu2(NavigationView& nav)
+    : nav_(nav) {
+    add_children({&text_head,
+                  &labels,
+                  &text_info_line_1,
+                  &text_info_line_2,
+                  &text_info_line_3,
+                  &text_info_line_4,
+                  &text_info_line_5,
+                  &text_info_line_6,
+                  &text_info_line_7,
+                  &text_info_line_8});
+}
+
+void DfuMenu2::paint(Painter& painter) {
+    text_info_line_1.set(to_string_dec_uint(portapack::receiver_model.target_frequency(), 10));
+    text_info_line_2.set(to_string_dec_uint(portapack::receiver_model.baseband_bandwidth(), 10));
+    text_info_line_3.set(to_string_dec_uint(portapack::receiver_model.sampling_rate(), 10));
+    text_info_line_4.set(to_string_dec_uint((uint32_t)portapack::receiver_model.modulation(), 10));
+    text_info_line_5.set(to_string_dec_uint(portapack::receiver_model.am_configuration(), 10));
+    text_info_line_6.set(to_string_dec_uint(portapack::receiver_model.nbfm_configuration(), 10));
+    text_info_line_7.set(to_string_dec_uint(portapack::receiver_model.wfm_configuration(), 10));
+    text_info_line_8.set("");
+
+    constexpr auto margin = 5;
+    constexpr auto lines = 8 + 2;
+
+    painter.fill_rectangle(
+        {{5 * CHARACTER_WIDTH - margin, 3 * LINE_HEIGHT - margin},
+         {19 * CHARACTER_WIDTH + margin * 2, lines * LINE_HEIGHT + margin * 2}},
+        ui::Color::black());
+
+    painter.fill_rectangle(
+        {{4 * CHARACTER_WIDTH - margin, 3 * LINE_HEIGHT - margin},
+         {CHARACTER_WIDTH, lines * LINE_HEIGHT + margin * 2}},
+        ui::Color::dark_cyan());
+
+    painter.fill_rectangle(
+        {{24 * CHARACTER_WIDTH + margin, 3 * LINE_HEIGHT - margin},
+         {CHARACTER_WIDTH, lines * LINE_HEIGHT + margin * 2}},
+        ui::Color::dark_cyan());
+
+    painter.fill_rectangle(
+        {{4 * CHARACTER_WIDTH - margin, 3 * LINE_HEIGHT - margin - 8},
+         {21 * CHARACTER_WIDTH + margin * 2, 8}},
+        ui::Color::dark_cyan());
+
+    painter.fill_rectangle(
+        {{4 * CHARACTER_WIDTH - margin, (lines + 3) * LINE_HEIGHT + margin},
+         {21 * CHARACTER_WIDTH + margin * 2, 8}},
+        ui::Color::dark_cyan());
+}
+
 } /* namespace ui */

firmware/application/apps/ui_dfu_menu.hpp

@@ -67,6 +67,38 @@ class DfuMenu : public View {
     Text text_info_line_8{{15 * CHARACTER_WIDTH, 12 * LINE_HEIGHT, 5 * CHARACTER_WIDTH, 1 * LINE_HEIGHT}, ""};
 };
 
+class DfuMenu2 : public View {
+   public:
+    DfuMenu2(NavigationView& nav);
+    ~DfuMenu2() = default;
+
+    void paint(Painter& painter) override;
+
+   private:
+    NavigationView& nav_;
+
+    Text text_head{{6 * CHARACTER_WIDTH, 3 * LINE_HEIGHT, 8 * CHARACTER_WIDTH, 1 * LINE_HEIGHT}, "Receiver"};
+
+    Labels labels{
+        {{5 * CHARACTER_WIDTH, 5 * LINE_HEIGHT}, "Tgt freq:", Color::dark_cyan()},
+        {{5 * CHARACTER_WIDTH, 6 * LINE_HEIGHT}, "Bandwidt:", Color::dark_cyan()},
+        {{5 * CHARACTER_WIDTH, 7 * LINE_HEIGHT}, "Sampl Rt:", Color::dark_cyan()},
+        {{5 * CHARACTER_WIDTH, 8 * LINE_HEIGHT}, "Modulatn:", Color::dark_cyan()},
+        {{5 * CHARACTER_WIDTH, 9 * LINE_HEIGHT}, "AM cfg:", Color::dark_cyan()},
+        {{5 * CHARACTER_WIDTH, 10 * LINE_HEIGHT}, "NBFM cfg:", Color::dark_cyan()},
+        {{5 * CHARACTER_WIDTH, 11 * LINE_HEIGHT}, "WFM cfg:", Color::dark_cyan()},
+        {{5 * CHARACTER_WIDTH, 12 * LINE_HEIGHT}, "", Color::dark_cyan()}};
+
+    Text text_info_line_1{{14 * CHARACTER_WIDTH, 5 * LINE_HEIGHT, 10 * CHARACTER_WIDTH, 1 * LINE_HEIGHT}, ""};
+    Text text_info_line_2{{14 * CHARACTER_WIDTH, 6 * LINE_HEIGHT, 10 * CHARACTER_WIDTH, 1 * LINE_HEIGHT}, ""};
+    Text text_info_line_3{{14 * CHARACTER_WIDTH, 7 * LINE_HEIGHT, 10 * CHARACTER_WIDTH, 1 * LINE_HEIGHT}, ""};
+    Text text_info_line_4{{14 * CHARACTER_WIDTH, 8 * LINE_HEIGHT, 10 * CHARACTER_WIDTH, 1 * LINE_HEIGHT}, ""};
+    Text text_info_line_5{{14 * CHARACTER_WIDTH, 9 * LINE_HEIGHT, 10 * CHARACTER_WIDTH, 1 * LINE_HEIGHT}, ""};
+    Text text_info_line_6{{14 * CHARACTER_WIDTH, 10 * LINE_HEIGHT, 10 * CHARACTER_WIDTH, 1 * LINE_HEIGHT}, ""};
+    Text text_info_line_7{{14 * CHARACTER_WIDTH, 11 * LINE_HEIGHT, 10 * CHARACTER_WIDTH, 1 * LINE_HEIGHT}, ""};
+    Text text_info_line_8{{14 * CHARACTER_WIDTH, 12 * LINE_HEIGHT, 10 * CHARACTER_WIDTH, 1 * LINE_HEIGHT}, ""};
+};
+
 } /* namespace ui */
 
 #endif /*__UI_DFU_MENU_H__*/

firmware/application/apps/ui_fileman.cpp

@@ -26,6 +26,7 @@
 
 #include <algorithm>
 #include "ui_fileman.hpp"
+#include "ui_playlist.hpp"
 #include "ui_ss_viewer.hpp"
 #include "ui_text_editor.hpp"
 #include "string_format.hpp"
@@ -35,6 +36,14 @@
 using namespace portapack;
 namespace fs = std::filesystem;
 
+namespace ui {
+static const fs::path txt_ext{u".TXT"};
+static const fs::path ppl_ext{u".PPL"};
+static const fs::path c16_ext{u".C16"};
+static const fs::path png_ext{u".PNG"};
+static const fs::path bmp_ext{u".BMP"};
+}  // namespace ui
+
 namespace {
 using namespace ui;
 
@@ -47,25 +56,6 @@ std::string truncate(const fs::path& path, size_t max_length) {
     return ::truncate(path.string(), max_length);
 }
 
-// Case insensitive path equality on underlying "native" string.
-bool iequal(
-    const fs::path& lhs,
-    const fs::path& rhs) {
-    const auto& lhs_str = lhs.native();
-    const auto& rhs_str = rhs.native();
-
-    // NB: Not correct for Unicode/locales.
-    if (lhs_str.length() == rhs_str.length()) {
-        for (size_t i = 0; i < lhs_str.length(); ++i)
-            if (towupper(lhs_str[i]) != towupper(rhs_str[i]))
-                return false;
-
-        return true;
-    }
-
-    return false;
-}
-
 // Inserts the entry into the entry list sorted directories first then by file name.
 void insert_sorted(std::vector<fileman_entry>& entries, fileman_entry&& entry) {
     auto it = std::lower_bound(
@@ -86,15 +76,12 @@ void insert_sorted(std::vector<fileman_entry>& entries, fileman_entry&& entry) {
 fs::path get_partner_file(fs::path path) {
     if (fs::is_directory(path))
         return {};
-
-    const fs::path txt_path{u".TXT"};
-    const fs::path c16_path{u".C16"};
     auto ext = path.extension();
 
-    if (iequal(ext, txt_path))
-        ext = c16_path;
-    else if (iequal(ext, c16_path))
-        ext = txt_path;
+    if (path_iequal(ext, txt_ext))
+        ext = c16_ext;
+    else if (path_iequal(ext, c16_ext))
+        ext = txt_ext;
     else
         return {};
 
@@ -163,7 +150,7 @@ void FileManBaseView::load_directory_contents(const fs::path& dir_path) {
             continue;
 
         if (fs::is_regular_file(entry.status())) {
-            if (!filtering || iequal(entry.path().extension(), extension_filter))
+            if (!filtering || path_iequal(entry.path().extension(), extension_filter))
                 insert_sorted(entry_list, {entry.path(), (uint32_t)entry.size(), false});
         } else if (fs::is_directory(entry.status())) {
             insert_sorted(entry_list, {entry.path(), 0, true});
@@ -301,7 +288,7 @@ const FileManBaseView::file_assoc_t& FileManBaseView::get_assoc(
     size_t index = 0;
 
     for (; index < file_types.size() - 1; ++index)
-        if (iequal(ext, file_types[index].extension))
+        if (path_iequal(ext, file_types[index].extension))
             return file_types[index];
 
     // Default to last entry in the list.
@@ -507,12 +494,20 @@ bool FileManagerView::handle_file_open() {
     auto path = get_selected_full_path();
     auto ext = path.extension();
 
-    if (iequal(u".TXT", ext) || iequal(u".PPL", ext)) {
+    if (path_iequal(txt_ext, ext)) {
         nav_.push<TextEditorView>(path);
         return true;
-    } else if (iequal(u".PNG", ext)) {
+    } else if (path_iequal(c16_ext, ext) || path_iequal(ppl_ext, ext)) {
+        // TODO: Enough memory to push?
+        nav_.push<PlaylistView>(path);
+        return true;
+    } else if (path_iequal(png_ext, ext)) {
         nav_.push<ScreenshotViewer>(path);
         return true;
+    } else if (path_iequal(bmp_ext, ext)) {
+        nav_.push<SplashViewer>(path);
+        reload_current();
+        return true;
     }
 
     return false;

firmware/application/apps/ui_flash_utility.cpp

@@ -25,6 +25,8 @@
 
 namespace ui {
 
+static const char16_t* firmware_folder = u"/FIRMWARE";
+
 Thread* FlashUtilityView::thread{nullptr};
 static constexpr size_t max_filename_length = 26;
 
@@ -35,7 +37,9 @@ FlashUtilityView::FlashUtilityView(NavigationView& nav)
 
     menu_view.set_parent_rect({0, 3 * 8, 240, 33 * 8});
 
-    for (const auto& entry : std::filesystem::directory_iterator(u"FIRMWARE", u"*.bin")) {
+    ensure_directory(firmware_folder);
+
+    for (const auto& entry : std::filesystem::directory_iterator(firmware_folder, u"*.bin")) {
         auto filename = entry.path().filename();
         auto path = entry.path().native();
 

firmware/application/apps/ui_flash_utility.hpp

@@ -40,7 +40,7 @@ class FlashUtilityView : public View {
 
     void focus() override;
 
-    std::string title() const override { return "FlashUtility"; };  // Removed the space because the title and speaker icon overlapped.
+    std::string title() const override { return "Flash Utility"; };
 
    private:
     NavigationView& nav_;

firmware/application/apps/ui_freqman.cpp

@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
  * Copyright (C) 2016 Furrtek
+ * Copyright (C) 2023 Kyle Reed
  *
  * This file is part of PortaPack.
  *
@@ -22,280 +23,284 @@
 
 #include "ui_freqman.hpp"
 
-#include "portapack.hpp"
 #include "event_m0.hpp"
+#include "portapack.hpp"
+#include "rtc_time.hpp"
+#include "utility.hpp"
+
+#include <memory>
 
 using namespace portapack;
+namespace fs = std::filesystem;
 
 namespace ui {
 
-static int32_t current_category_id = 0;
+/* FreqManBaseView ***************************************/
+
+size_t FreqManBaseView::current_category_index = 0;
 
 FreqManBaseView::FreqManBaseView(
     NavigationView& nav)
     : nav_(nav) {
-    add_children({&options_category,
-                  &label_category,
-                  &button_exit});
+    add_children(
+        {&label_category,
+         &options_category,
+         &button_exit});
 
-    // initialize
-    refresh_list();
-    options_category.on_change = [this](size_t category_id, int32_t) {
-        change_category(category_id);
+    options_category.on_change = [this](size_t new_index, int32_t) {
+        change_category(new_index);
     };
-    options_category.set_selected_index(current_category_id);
 
     button_exit.on_select = [this, &nav](Button&) {
         nav.pop();
     };
+
+    refresh_categories();
 };
 
 void FreqManBaseView::focus() {
     button_exit.focus();
 
+    // TODO: Shouldn't be on focus.
     if (error_ == ERROR_ACCESS) {
-        nav_.display_modal("Error", "File acces error", ABORT, nullptr);
+        nav_.display_modal("Error", "File access error", ABORT, nullptr);
     } else if (error_ == ERROR_NOFILES) {
-        nav_.display_modal("Error", "No database files\nin /freqman", ABORT, nullptr);
+        nav_.display_modal("Error", "No database files\nin /FREQMAN", ABORT, nullptr);
     } else {
         options_category.focus();
     }
 }
 
-void FreqManBaseView::get_freqman_files() {
-    std::vector<std::string>().swap(file_list);
+void FreqManBaseView::change_category(size_t new_index) {
+    if (categories().empty())
+        return;
 
-    auto files = scan_root_files(u"FREQMAN", u"*.TXT");
-
-    for (auto file : files) {
-        std::string file_name = file.stem().string();
-        // don't propose tmp / hidden files in freqman's list
-        if (file_name.length() && file_name[0] != '.') {
-            file_list.emplace_back(file_name);
-        }
-    }
-};
-
-void FreqManBaseView::change_category(int32_t category_id) {
-    current_category_id = category_id;
-
-    if (file_list.empty()) return;
-
-    std::vector<freqman_entry>().swap(database);
-
-    if (!load_freqman_file(file_list[categories[category_id].second], database)) {
+    current_category_index = new_index;
+    if (!db_.open(get_freqman_path(current_category()))) {
         error_ = ERROR_ACCESS;
     }
-    menu_view.set_db(database);
-    text_empty.hidden(!database.empty());
-    menu_view.set_dirty();
-    set_dirty();
+
+    freqlist_view.set_db(db_);
 }
 
-void FreqManBaseView::refresh_list() {
-    categories.clear();
-    get_freqman_files();
+void FreqManBaseView::refresh_categories() {
+    OptionsField::options_t new_categories;
 
-    for (size_t n = 0; n < file_list.size(); n++)
-        categories.emplace_back(std::make_pair(file_list[n].substr(0, 14), n));
+    scan_root_files(
+        freqman_dir, u"*.TXT", [&new_categories](const fs::path& path) {
+            // Skip temp/hidden files.
+            if (path.empty() || path.native()[0] == u'.')
+                return;
 
-    // Alphabetical sort
-    std::sort(categories.begin(), categories.end(), [](auto& left, auto& right) {
+            // The UI layer will truncate long file names when displaying.
+            new_categories.emplace_back(path.stem().string(), new_categories.size());
+        });
+
+    // Alphabetically sort the categories.
+    std::sort(new_categories.begin(), new_categories.end(), [](auto& left, auto& right) {
         return left.first < right.first;
     });
 
-    options_category.set_options(categories);
-    if ((unsigned)current_category_id >= categories.size())
-        current_category_id = categories.size() - 1;
+    // Preserve last selection; ensure in range.
+    current_category_index = clip(current_category_index, 0u, new_categories.size());
+    auto saved_index = current_category_index;
+    options_category.set_options(std::move(new_categories));
+    options_category.set_selected_index(saved_index);
 }
 
-void FrequencySaveView::save_current_file() {
-    save_freqman_file(file_list[categories[current_category_id].second], database);
-    nav_.pop();
+void FreqManBaseView::refresh_list(int delta_selected) {
+    // Update the index and ensures in bounds.
+    freqlist_view.set_index(freqlist_view.get_index() + delta_selected);
+    freqlist_view.set_dirty();
 }
 
-void FrequencySaveView::on_save_name() {
-    text_prompt(nav_, desc_buffer, 28, [this](std::string& buffer) {
-        database.push_back({value_, 0, buffer, SINGLE});
-        save_current_file();
-    });
-}
-
-void FrequencySaveView::on_save_timestamp() {
-    database.push_back({value_, 0, live_timestamp.string(), SINGLE});
-    save_current_file();
-}
+/* FrequencySaveView *************************************/
 
 FrequencySaveView::FrequencySaveView(
     NavigationView& nav,
     const rf::Frequency value)
-    : FreqManBaseView(nav),
-      value_(value) {
-    desc_buffer.reserve(28);
+    : FreqManBaseView(nav) {
+    add_children(
+        {&labels,
+         &big_display,
+         &button_clear,
+         &button_edit,
+         &button_save,
+         &text_description});
 
-    // Todo: add back ?
-    /*for (size_t n = 0; n < database.size(); n++) {
-      if (database[n].value == value_) {
-      error_ = ERROR_DUPLICATE;
-      break;
-      }
-      }*/
+    entry_.type = freqman_type::Single;
+    entry_.frequency_a = value;
+    entry_.description = to_string_timestamp(rtc_time::now());
+    refresh_ui();
 
-    add_children({&labels,
-                  &big_display,
-                  &button_save_name,
-                  &button_save_timestamp,
-                  &live_timestamp});
-
-    big_display.set(value);
-
-    button_save_name.on_select = [this, &nav](Button&) {
-        on_save_name();
-    };
-    button_save_timestamp.on_select = [this, &nav](Button&) {
-        on_save_timestamp();
+    button_clear.on_select = [this, &nav](Button&) {
+        entry_.description = "";
+        refresh_ui();
     };
 
-    options_category.on_change = [this, value](size_t category_id, int32_t) {
-        change_category(category_id);
-        big_display.set(value);
+    button_edit.on_select = [this, &nav](Button&) {
+        temp_buffer_ = entry_.description;
+        text_prompt(nav_, temp_buffer_, 30, [this](std::string& new_desc) {
+            entry_.description = new_desc;
+            refresh_ui();
+        });
+    };
+
+    button_save.on_select = [this, &nav](Button&) {
+        db_.insert_entry(entry_, db_.entry_count());
+        nav_.pop();
     };
 }
 
-void FrequencyLoadView::refresh_widgets(const bool v) {
-    menu_view.hidden(v);
-    text_empty.hidden(!v);
-    // display.fill_rectangle(menu_view.screen_rect(), Color::black());
-    set_dirty();
+void FrequencySaveView::refresh_ui() {
+    big_display.set(entry_.frequency_a);
+    text_description.set(entry_.description);
 }
 
+/* FrequencyLoadView *************************************/
+
 FrequencyLoadView::FrequencyLoadView(
     NavigationView& nav)
     : FreqManBaseView(nav) {
-    on_refresh_widgets = [this](bool v) {
-        refresh_widgets(v);
+    add_children({&freqlist_view});
+
+    // Resize to fill screen. +2 keeps text out of border.
+    freqlist_view.set_parent_rect({0, 3 * 8, screen_width, 15 * 16 + 2});
+
+    freqlist_view.on_select = [&nav, this](size_t index) {
+        auto entry = db_[index];
+        // TODO: Maybe return center of range if user choses a range when the app
+        // needs a unique frequency, instead of frequency_a?
+        auto has_range = entry.type == freqman_type::Range ||
+                         entry.type == freqman_type::HamRadio;
+
+        if (on_range_loaded && has_range)
+            on_range_loaded(entry.frequency_a, entry.frequency_b);
+        else if (on_frequency_loaded)
+            on_frequency_loaded(entry.frequency_a);
+
+        nav_.pop();  // NB: this will call dtor.
     };
+    freqlist_view.on_leave = [this]() {
+        button_exit.focus();
+    };
+}
 
-    add_children({&menu_view,
-                  &text_empty});
+/* FrequencyManagerView **********************************/
 
-    // Resize menu view to fill screen
-    menu_view.set_parent_rect({0, 3 * 8, 240, 30 * 8});
+void FrequencyManagerView::on_edit_freq() {
+    // TODO: range edit support?
+    auto freq_edit_view = nav_.push<FrequencyKeypadView>(current_entry().frequency_a);
+    freq_edit_view->on_changed = [this](rf::Frequency f) {
+        auto entry = current_entry();
+        entry.frequency_a = f;
+        db_.replace_entry(current_index(), entry);
+        freqlist_view.set_dirty();
+    };
+}
 
-    menu_view.on_select = [&nav, this](FreqManUIList&) {
-        nav_.pop();
+void FrequencyManagerView::on_edit_desc() {
+    temp_buffer_ = current_entry().description;
+    text_prompt(nav_, temp_buffer_, 28, [this](std::string& new_desc) {
+        auto entry = current_entry();
+        entry.description = std::move(new_desc);
+        db_.replace_entry(current_index(), entry);
+        freqlist_view.set_dirty();
+    });
+}
 
-        auto& entry = database[menu_view.get_index()];
-
-        if (entry.type == RANGE) {
-            // User chose a frequency range entry
-            if (on_range_loaded)
-                on_range_loaded(entry.frequency_a, entry.frequency_b);
-            else if (on_frequency_loaded)
-                on_frequency_loaded(entry.frequency_a);
-            // TODO: Maybe return center of range if user choses a range when the app needs a unique frequency, instead of frequency_a ?
-        } else {
-            // User chose an unique frequency entry
-            if (on_frequency_loaded)
-                on_frequency_loaded(entry.frequency_a);
+void FrequencyManagerView::on_add_category() {
+    temp_buffer_.clear();
+    text_prompt(nav_, temp_buffer_, 12, [this](std::string& new_name) {
+        if (!new_name.empty()) {
+            create_freqman_file(new_name);
+            refresh_categories();
         }
+    });
+}
+
+void FrequencyManagerView::on_del_category() {
+    nav_.push<ModalMessageView>(
+        "Delete", "Delete " + current_category() + "\nAre you sure?", YESNO,
+        [this](bool choice) {
+            if (choice) {
+                db_.close();  // Ensure file is closed.
+                auto path = get_freqman_path(current_category());
+                delete_file(path);
+                refresh_categories();
+            }
+        });
+}
+
+void FrequencyManagerView::on_add_entry() {
+    freqman_entry entry{
+        .frequency_a = 100'000'000,
+        .description = std::string{"Entry "} + to_string_dec_uint(db_.entry_count()),
+        .type = freqman_type::Single,
     };
+
+    // Add will insert below the currently selected item.
+    db_.insert_entry(entry, current_index() + 1);
+    refresh_list(1);
 }
 
-void FrequencyManagerView::on_edit_freq(rf::Frequency f) {
-    database[menu_view.get_index()].frequency_a = f;
-    save_freqman_file(file_list[categories[current_category_id].second], database);
-    change_category(current_category_id);
-}
+void FrequencyManagerView::on_del_entry() {
+    if (db_.empty())
+        return;
 
-void FrequencyManagerView::on_edit_desc(NavigationView& nav) {
-    text_prompt(nav, desc_buffer, 28, [this](std::string& buffer) {
-        database[menu_view.get_index()].description = buffer;
-        save_freqman_file(file_list[categories[current_category_id].second], database);
-        change_category(current_category_id);
-    });
-}
-
-void FrequencyManagerView::on_new_category(NavigationView& nav) {
-    text_prompt(nav, desc_buffer, 12, [this](std::string& buffer) {
-        File freqman_file;
-        create_freqman_file(buffer, freqman_file);
-        refresh_list();
-        change_category(current_category_id);
-    });
-}
-
-void FrequencyManagerView::on_delete() {
-    if (database.empty()) {
-        delete_freqman_file(file_list[categories[current_category_id].second]);
-        refresh_list();
-    } else {
-        database.erase(database.begin() + menu_view.get_index());
-        save_freqman_file(file_list[categories[current_category_id].second], database);
-    }
-    change_category(current_category_id);
-}
-
-void FrequencyManagerView::refresh_widgets(const bool v) {
-    button_edit_freq.hidden(v);
-    button_edit_desc.hidden(v);
-    button_delete.hidden(v);
-    text_empty.hidden(!v);
-    menu_view.hidden(v);
-    menu_view.set_dirty();
-    labels.hidden(v);
-    // display.fill_rectangle(menu_view.screen_rect(), Color::black());
-    set_dirty();
-}
-
-FrequencyManagerView::~FrequencyManagerView() {
-    // save_freqman_file(file_list[categories[current_category_id].second], database);
+    nav_.push<ModalMessageView>(
+        "Delete", "Delete" + pretty_string(current_entry(), 23) + "\nAre you sure?", YESNO,
+        [this](bool choice) {
+            if (choice) {
+                db_.delete_entry(current_index());
+                refresh_list();
+            }
+        });
 }
 
 FrequencyManagerView::FrequencyManagerView(
     NavigationView& nav)
     : FreqManBaseView(nav) {
-    on_refresh_widgets = [this](bool v) {
-        refresh_widgets(v);
+    add_children(
+        {&freqlist_view,
+         &labels,
+         &button_add_category,
+         &button_del_category,
+         &button_edit_freq,
+         &button_edit_desc,
+         &button_add_entry,
+         &button_del_entry});
+
+    freqlist_view.on_select = [this](size_t) {
+        button_edit_freq.focus();
     };
-
-    add_children({&labels,
-                  &button_new_category,
-                  &menu_view,
-                  &text_empty,
-                  &button_edit_freq,
-                  &button_edit_desc,
-                  &button_delete});
-
-    menu_view.on_select = [this](FreqManUIList&) {
+    // Allows for quickly exiting control.
+    freqlist_view.on_leave = [this]() {
         button_edit_freq.focus();
     };
 
-    button_new_category.on_select = [this, &nav](Button&) {
-        desc_buffer = "";
-        on_new_category(nav);
+    button_add_category.on_select = [this]() {
+        on_add_category();
     };
 
-    button_edit_freq.on_select = [this, &nav](Button&) {
-        if (database.empty()) {
-            database.push_back({0, 0, "", SINGLE});
-        }
-        auto new_view = nav.push<FrequencyKeypadView>(database[menu_view.get_index()].frequency_a);
-        new_view->on_changed = [this](rf::Frequency f) {
-            on_edit_freq(f);
-        };
+    button_del_category.on_select = [this]() {
+        on_del_category();
     };
 
-    button_edit_desc.on_select = [this, &nav](Button&) {
-        if (database.empty()) {
-            database.push_back({0, 0, "", SINGLE});
-        }
-        desc_buffer = database[menu_view.get_index()].description;
-        on_edit_desc(nav);
+    button_edit_freq.on_select = [this](Button&) {
+        on_edit_freq();
     };
 
-    button_delete.on_select = [this, &nav](Button&) {
-        on_delete();
+    button_edit_desc.on_select = [this](Button&) {
+        on_edit_desc();
+    };
+
+    button_add_entry.on_select = [this]() {
+        on_add_entry();
+    };
+
+    button_del_entry.on_select = [this]() {
+        on_del_entry();
     };
 }
 

firmware/application/apps/ui_freqman.hpp

@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
  * Copyright (C) 2016 Furrtek
+ * Copyright (C) 2023 Kyle Reed
  *
  * This file is part of PortaPack.
  *
@@ -20,15 +21,16 @@
  * Boston, MA 02110-1301, USA.
  */
 
+#include "freqman.hpp"
+#include "freqman_db.hpp"
 #include "ui.hpp"
-#include "ui_widget.hpp"
-#include "ui_painter.hpp"
+#include "ui_freqlist.hpp"
 #include "ui_menu.hpp"
 #include "ui_navigation.hpp"
+#include "ui_painter.hpp"
 #include "ui_receiver.hpp"
 #include "ui_textentry.hpp"
-#include "freqman.hpp"
-#include "ui_freqlist.hpp"
+#include "ui_widget.hpp"
 
 namespace ui {
 
@@ -40,74 +42,77 @@ class FreqManBaseView : public View {
     void focus() override;
 
    protected:
-    using option_t = std::pair<std::string, int32_t>;
-    using options_t = std::vector<option_t>;
+    using options_t = OptionsField::options_t;
 
     NavigationView& nav_;
     freqman_error error_{NO_ERROR};
-    options_t categories{};
     std::function<void(void)> on_select_frequency{nullptr};
-    std::function<void(bool)> on_refresh_widgets{nullptr};
 
-    void get_freqman_files();
-    void change_category(int32_t category_id);
-    void refresh_list();
+    void change_category(size_t new_index);
+    /* Access the categories directly from the OptionsField.
+     * This avoids holding multiple copies of the file list. */
+    const options_t& categories() const { return options_category.options(); }
+    const auto& current_category() const { return options_category.selected_index_name(); }
+    auto current_index() const { return freqlist_view.get_index(); }
+    freqman_entry current_entry() const { return db_[current_index()]; }
+    void refresh_categories();
+    void refresh_list(int delta_selected = 0);
 
-    freqman_db database{};
-    std::vector<std::string> file_list{};
+    FreqmanDB db_{};
 
+    /* The top section (category) is 20px tall. */
     Labels label_category{
-        {{0, 4}, "Category:", Color::light_grey()}};
+        {{0, 2}, "Category:", Color::light_grey()}};
 
     OptionsField options_category{
-        {9 * 8, 4},
-        14,
+        {9 * 8, 2},
+        14 /* length */,
         {}};
 
-    FreqManUIList menu_view{
-        {0, 3 * 8, 240, 23 * 8}};
-
-    Text text_empty{
-        {7 * 8, 12 * 8, 16 * 8, 16},
-        "Empty category !",
-    };
+    FreqManUIList freqlist_view{
+        {0, 3 * 8, screen_width, 12 * 16 + 2 /* 2 Keeps text out of border. */}};
 
     Button button_exit{
-        {16 * 8, 34 * 8, 14 * 8, 4 * 8},
+        {15 * 8, 17 * 16, 15 * 8, 2 * 16},
         "Exit"};
 
-   private:
+   protected:
+    /* Static so selected category is persisted across UI instances. */
+    static size_t current_category_index;
 };
 
+// TODO: support for new category.
 class FrequencySaveView : public FreqManBaseView {
    public:
     FrequencySaveView(NavigationView& nav, const rf::Frequency value);
-
-    std::string title() const override { return "Save freq."; };
+    std::string title() const override { return "Save freq"; };
 
    private:
-    std::string desc_buffer{};
-    rf::Frequency value_{};
+    std::string temp_buffer_{};
+    freqman_entry entry_{};
 
-    void on_save_name();
-    void on_save_timestamp();
-    void save_current_file();
+    void refresh_ui();
 
     BigFrequency big_display{
-        {4, 2 * 16, 28 * 8, 32},
+        {0, 2 * 16, 28 * 8, 4 * 16},
         0};
 
     Labels labels{
-        {{1 * 8, 12 * 8}, "Save as:", Color::white()}};
+        {{0 * 8, 6 * 16}, "Description:", Color::white()}};
 
-    Button button_save_name{
-        {1 * 8, 17 * 8, 12 * 8, 48},
-        "Name (set)"};
-    Button button_save_timestamp{
-        {1 * 8, 25 * 8, 12 * 8, 48},
-        "Timestamp:"};
-    LiveDateTime live_timestamp{
-        {14 * 8, 27 * 8, 16 * 8, 16}};
+    Text text_description{{0 * 8, 7 * 16, 30 * 8, 1 * 16}};
+
+    Button button_clear{
+        {4 * 8, 10 * 16, 10 * 8, 2 * 16},
+        "Clear"};
+
+    Button button_edit{
+        {16 * 8, 10 * 16, 10 * 8, 2 * 16},
+        "Edit"};
+
+    Button button_save{
+        {0 * 8, 17 * 16, 15 * 8, 2 * 16},
+        "Save"};
 };
 
 class FrequencyLoadView : public FreqManBaseView {
@@ -116,46 +121,62 @@ class FrequencyLoadView : public FreqManBaseView {
     std::function<void(rf::Frequency, rf::Frequency)> on_range_loaded{};
 
     FrequencyLoadView(NavigationView& nav);
-
-    std::string title() const override { return "Load freq."; };
-
-   private:
-    void refresh_widgets(const bool v);
+    std::string title() const override { return "Load freq"; };
 };
 
 class FrequencyManagerView : public FreqManBaseView {
    public:
     FrequencyManagerView(NavigationView& nav);
-    ~FrequencyManagerView();
-
     std::string title() const override { return "Freqman"; };
 
    private:
-    std::string desc_buffer{};
+    std::string temp_buffer_{};
 
-    void refresh_widgets(const bool v);
-    void on_edit_freq(rf::Frequency f);
-    void on_edit_desc(NavigationView& nav);
-    void on_new_category(NavigationView& nav);
-    void on_delete();
+    void on_edit_freq();
+    void on_edit_desc();
+    void on_add_category();
+    void on_del_category();
+    void on_add_entry();
+    void on_del_entry();
 
     Labels labels{
-        {{4 * 8 + 4, 26 * 8}, "Edit:", Color::light_grey()}};
+        {{5 * 8, 14 * 16 - 4}, "Edit:", Color::light_grey()}};
 
-    Button button_new_category{
-        {23 * 8, 2, 7 * 8, 20},
-        "New"};
+    NewButton button_add_category{
+        {23 * 8, 0 * 16, 7 * 4, 20},
+        {},
+        &bitmap_icon_new_file,
+        Color::white(),
+        true};
+
+    NewButton button_del_category{
+        {26 * 8 + 4, 0 * 16, 7 * 4, 20},
+        {},
+        &bitmap_icon_trash,
+        Color::red(),
+        true};
 
     Button button_edit_freq{
-        {0 * 8, 29 * 8, 14 * 8, 32},
+        {0 * 8, 15 * 16, 15 * 8, 2 * 16},
         "Frequency"};
+
     Button button_edit_desc{
-        {0 * 8, 34 * 8, 14 * 8, 32},
+        {0 * 8, 17 * 16, 15 * 8, 2 * 16},
         "Description"};
 
-    Button button_delete{
-        {16 * 8, 29 * 8, 14 * 8, 32},
-        "Delete"};
+    NewButton button_add_entry{
+        {15 * 8, 15 * 16, 7 * 8 + 4, 2 * 16},
+        {},
+        &bitmap_icon_add,
+        Color::white(),
+        true};
+
+    NewButton button_del_entry{
+        {22 * 8 + 4, 15 * 16, 7 * 8 + 4, 2 * 16},
+        {},
+        &bitmap_icon_delete,
+        Color::red(),
+        true};
 };
 
 } /* namespace ui */

firmware/application/apps/ui_level.cpp

@@ -26,6 +26,7 @@
 #include "file.hpp"
 
 using namespace portapack;
+using namespace tonekey;
 using portapack::memory::map::backup_ram;
 
 namespace ui {
@@ -199,41 +200,33 @@ size_t LevelView::change_mode(freqman_index_t new_mod) {
             field_bw.on_change = [this](size_t, OptionsField::value_t n) { receiver_model.set_wfm_configuration(n); };
             text_ctcss.set("             ");
             break;
+        case SPEC_MODULATION:
+            freqman_set_bandwidth_option(new_mod, field_bw);
+            baseband::run_image(portapack::spi_flash::image_tag_capture);
+            receiver_model.set_modulation(ReceiverModel::Mode::Capture);
+            field_bw.set_by_value(0);
+            field_bw.on_change = [this](size_t, OptionsField::value_t sampling_rate) {
+                auto anti_alias_baseband_bandwidth_filter = filter_bandwidth_for_sampling_rate(sampling_rate);
+                receiver_model.set_sampling_rate(sampling_rate);
+                receiver_model.set_baseband_bandwidth(anti_alias_baseband_bandwidth_filter);
+            };
         default:
             break;
     }
+    if (new_mod != SPEC_MODULATION) {
+        // reset receiver model to fix bug when going from SPEC to audio, the sound is distorded
+        receiver_model.set_sampling_rate(3072000);
+        receiver_model.set_baseband_bandwidth(1750000);
+    }
+
     return step_mode.selected_index();
 }
 
 void LevelView::handle_coded_squelch(const uint32_t value) {
-    static int32_t last_idx = -1;
-
-    float diff, min_diff = value;
-    size_t min_idx{0};
-    size_t c;
-
-    if (field_mode.selected_index() != NFM_MODULATION) {
-        text_ctcss.set("             ");
-        return;
-    }
-
-    // Find nearest match
-    for (c = 0; c < tone_keys.size(); c++) {
-        diff = abs(((float)value / 100.0) - tone_keys[c].second);
-        if (diff < min_diff) {
-            min_idx = c;
-            min_diff = diff;
-        }
-    }
-
-    // Arbitrary confidence threshold
-    if (last_idx < 0 || (unsigned)last_idx != min_idx) {
-        last_idx = min_idx;
-        if (min_diff < 40)
-            text_ctcss.set("T: " + tone_keys[min_idx].first);
-        else
-            text_ctcss.set("             ");
-    }
+    if (field_mode.selected_index() == NFM_MODULATION)
+        text_ctcss.set(tone_key_string_by_value(value, text_ctcss.parent_rect().width() / 8));
+    else
+        text_ctcss.set("        ");
 }
 
 } /* namespace ui */

firmware/application/apps/ui_level.hpp

@@ -91,7 +91,7 @@ class LevelView : public View {
 
     OptionsField field_mode{
         {15 * 8, 1 * 16},
-        3,
+        4,
         {}};
 
     OptionsField step_mode{
@@ -114,7 +114,7 @@ class LevelView : public View {
         }};
 
     Text text_ctcss{
-        {22 * 8, 3 * 16 + 4, 14 * 8, 1 * 8},
+        {22 * 8, 3 * 16 + 4, 8 * 8, 1 * 8},
         ""};
 
     // RSSI: XX/XX/XXX,dt: XX

firmware/application/apps/ui_looking_glass_app.cpp

@@ -471,9 +471,9 @@ GlassView::GlassView(
 
     button_marker.on_select = [this](ButtonWithEncoder&) {
         receiver_model.set_target_frequency(marker);  // 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
+        auto settings = receiver_model.settings();
+        settings.frequency_step = MHZ_DIV;        // Preset a 1 MHz frequency step into RX -> AUDIO
+        nav_.replace<AnalogAudioView>(settings);  // Jump into audio view
     };
 
     field_trigger.on_change = [this](int32_t v) {
@@ -495,9 +495,9 @@ GlassView::GlassView(
 
     button_jump.on_select = [this](Button&) {
         receiver_model.set_target_frequency(max_freq_hold);  // 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
+        auto settings = receiver_model.settings();
+        settings.frequency_step = MHZ_DIV;        // Preset a 1 MHz frequency step into RX -> AUDIO
+        nav_.replace<AnalogAudioView>(settings);  // Jump into audio view
     };
 
     button_rst.on_select = [this](Button&) {
@@ -513,7 +513,6 @@ GlassView::GlassView(
     marker_pixel_index = 120;
     on_range_changed();
 
-    receiver_model.set_modulation(ReceiverModel::Mode::SpectrumAnalysis);
     receiver_model.set_sampling_rate(looking_glass_sampling_rate);   // 20mhz
     receiver_model.set_baseband_bandwidth(looking_glass_bandwidth);  // 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);

firmware/application/apps/ui_looking_glass_app.hpp

@@ -63,7 +63,7 @@ class GlassView : public View {
     GlassView& operator=(const GlassView& nav);
 
     ~GlassView();
-    std::string title() const override { return "LookingGlass"; };
+    std::string title() const override { return "Looking Glass"; };
 
     void on_show() override;
     void on_hide() override;
@@ -71,7 +71,7 @@ class GlassView : public View {
 
    private:
     NavigationView& nav_;
-    RxRadioState radio_state_{};
+    RxRadioState radio_state_{ReceiverModel::Mode::SpectrumAnalysis};
     app_settings::SettingsManager settings_{
         "rx_glass", app_settings::Mode::RX};
 

firmware/application/apps/ui_mictx.cpp

@@ -22,21 +22,20 @@
 
 #include "ui_mictx.hpp"
 
-#include "baseband_api.hpp"
 #include "audio.hpp"
-
-#include "wm8731.hpp"
-using wolfson::wm8731::WM8731;
-
-#include "tonesets.hpp"
+#include "baseband_api.hpp"
+#include "irq_controls.hpp"
 #include "portapack_hal.hpp"
 #include "string_format.hpp"
-#include "irq_controls.hpp"
+#include "tonesets.hpp"
+#include "ui_tone_key.hpp"
+#include "wm8731.hpp"
 
 #include <cstring>
 
 using namespace tonekey;
 using namespace portapack;
+using wolfson::wm8731::WM8731;
 
 WM8731 audio_codec_wm8731{i2c0, 0x1a};
 
@@ -145,25 +144,25 @@ void MicTXView::rxaudio(bool is_on) {
         audio::input::stop();
         baseband::shutdown();
 
-        if (enable_am || enable_usb || enable_lsb || enable_dsb) {  // "NFM/FM",0 ," WFM  ",1 ,  "  AM  ",2, " USB  ", 3, " LSB  ",4, " DSB-SC", 5
+        if (enable_am || enable_usb || enable_lsb || enable_dsb) {  // "NFM/FM", 0, " WFM  ", 1,  "  AM  ", 2, " USB  ", 3, " LSB  ", 4, " DSB-SC", 5
             baseband::run_image(portapack::spi_flash::image_tag_am_audio);
             receiver_model.set_modulation(ReceiverModel::Mode::AMAudio);                 // that AM demodulation engine is common to all Amplitude mod : AM/USB/LSB/DSB (2,3,4,5)
-            if (options_mode.selected_index() < 5)                                       // We will be called here with 2,3,4,5 . We treat here demod. filter 2,3,4; (excluding DSB-C case (5) it is treated more down).
-                receiver_model.set_am_configuration(options_mode.selected_index() - 1);  // selecting proper filter(2,3,4). 2-1=1=>6k-AM(1) , 3-1=2=>+3k-USB(2), 4-1=3=>-3K-LSB(3),
-        } else {                                                                         // We are in NFM/FM or WFM    (NFM BW:8k5 or 11k / FM BW 16k  / WFM  BW:200k)
+            if (options_mode.selected_index() < 5)                                       // We will be called here with 2,3,4,5. We treat here demod. filter 2,3,4; (excluding DSB-C case (5) it is treated more down).
+                receiver_model.set_am_configuration(options_mode.selected_index() - 1);  // selecting proper filter(2,3,4). 2-1=1=>6k-AM(1), 3-1=2=>+3k-USB(2), 4-1=3=>-3K-LSB(3),
+        } else {                                                                         // We are in NFM/FM or WFM (NFM BW:8k5 or 11k / FM BW 16k / WFM BW:200k)
 
-            if (enable_wfm) {  // WFM , BW 200Khz aprox , or the two new addional BW filters (180k, 40k)
+            if (enable_wfm) {  // WFM, BW 200Khz aprox, or the two new addional BW filters (180k, 40k)
                 baseband::run_image(portapack::spi_flash::image_tag_wfm_audio);
                 receiver_model.set_modulation(ReceiverModel::Mode::WidebandFMAudio);
-                // receiver_model.set_wfm_configuration(n);  // it is called above  , depending user's selection (200k, 180k,40k).
-            } else {  // NFM BW:8k5 or  11k / FM BW 16k
+                // receiver_model.set_wfm_configuration(n);  // it is called above, depending user's selection (200k, 180k, 0k).
+            } else {  // NFM BW:8k5 or 11k / FM BW 16k
                 baseband::run_image(portapack::spi_flash::image_tag_nfm_audio);
                 receiver_model.set_modulation(ReceiverModel::Mode::NarrowbandFMAudio);  //
-                                                                                        // receiver_model.set_nbfm_configuration(n); is called above  , depending user's selection (8k5, 11k, 16k).
+                                                                                        // receiver_model.set_nbfm_configuration(n); is called above, depending user's selection (8k5, 11k, 16k).
             }
         }
 
-        if (bool_same_F_tx_rx_enabled)                          // when stop TX ,define to which freq RX we return
+        if (bool_same_F_tx_rx_enabled)                          // when stop TX, define to which freq RX we return
             receiver_model.set_target_frequency(tx_frequency);  // Update freq also for RX = TX
         else
             receiver_model.set_target_frequency(rx_frequency);  // Now with separate freq controls!
@@ -196,7 +195,7 @@ MicTXView::MicTXView(
     baseband::run_image(portapack::spi_flash::image_tag_mic_tx);
 
     if (audio::debug::codec_name() == "WM8731") {
-        add_children({&labels_WM8731,  // we have audio codec WM8731, same MIC menu  as original.
+        add_children({&labels_WM8731,  // we have audio codec WM8731, same MIC menu as original.
                       &vumeter,
                       &options_gain,  // MIC GAIN float factor on the GUI.
                       &options_wm8731_boost_mode,
@@ -260,7 +259,7 @@ MicTXView::MicTXView(
         mic_gain = v / 10.0;
         configure_baseband();
     };
-    options_gain.set_selected_index(1);  // x1.0  preselected default.
+    options_gain.set_selected_index(1);  // x1.0 preselected default.
 
     if (audio::debug::codec_name() == "WM8731") {
         options_wm8731_boost_mode.on_change = [this](size_t, int8_t v) {
@@ -268,30 +267,30 @@ MicTXView::MicTXView(
                 case 0:                  // +12 dB’s respect reference level orig fw 1.5.x fw FM : when +20dB's boost ON) and shift bits (>>8),
                     shift_bits_s16 = 6;  // now mic-boost on (+20dBs) and shift bits (>>6), +20+12=32 dB’s (orig fw +20 dBs+ 0dBs)=> +12dB's respect ref.
                     break;
-                case 1:                  // +06 dB’s reference level , (when +20dB's boost ON)
+                case 1:                  // +06 dB’s reference level, (when +20dB's boost ON)
                     shift_bits_s16 = 7;  // now mic-boost on (+20dBs) and shift bits (>>7), +20+06=26 dB’s (orig fw +20 dBs+ 0dBs) => +06dB's respect ref.
                     break;
                 case 2:
-                    shift_bits_s16 = 4;  // +04 dB’s respect ref level , (when +20dB's boost OFF)
+                    shift_bits_s16 = 4;  // +04 dB’s respect ref level, (when +20dB's boost OFF)
                     break;               // now mic-boost off (+00dBs) shift bits (4) (+0+24dB's)=24 dBs => +04dB's respect ref.
                 case 3:
-                    shift_bits_s16 = 5;  // -02 dB’s respect ref level , (when +20dB's boost OFF)
+                    shift_bits_s16 = 5;  // -02 dB’s respect ref level, (when +20dB's boost OFF)
                     break;               // now mic-boost off (+00dBs) shift bits (5) (+0+18dB's)=18 dBs => -02dB's respect ref.
                 case 4:
-                    shift_bits_s16 = 6;  // -08 dB’s respect ref level , (when +20dB's boost OFF)
+                    shift_bits_s16 = 6;  // -08 dB’s respect ref level, (when +20dB's boost OFF)
                     break;               // now mic-boost off (+00dBs) shift bits (6) (+0+12dB's)=12 dBs => -08dB's respect ref.
             }
-            ak4951_alc_and_wm8731_boost_GUI = v;                   // 0,..4 WM8731_boost dB's options, (combination boost on/off , and effective gain in captured data >>x)
-            audio::input::start(ak4951_alc_and_wm8731_boost_GUI);  // Detected (WM8731) , set up the proper wm_boost on/off , 0..4 (0,1) boost_on , (2,3,4) boost_0ff
-            configure_baseband();                                  // to update in real time, sending msg ,  var-parameters >>shift_bits FM msg ,to audio_tx from M0 to M4 Proc -
+            ak4951_alc_and_wm8731_boost_GUI = v;                   // 0..4, WM8731_boost dB's options, (combination boost on/off, and effective gain in captured data >>x)
+            audio::input::start(ak4951_alc_and_wm8731_boost_GUI);  // Detected (WM8731), set up the proper wm_boost on/off, 0..4 (0,1) boost_on, (2,3,4) boost_off
+            configure_baseband();                                  // to update in real time, sending msg, var-parameters >>shift_bits FM msg, to audio_tx from M0 to M4 Proc -
         };
-        options_wm8731_boost_mode.set_selected_index(3);  // preset GUI index 3 as default WM -> -02 dB's .
+        options_wm8731_boost_mode.set_selected_index(3);  // preset GUI index 3 as default WM -> -02 dB's.
     } else {
-        shift_bits_s16 = 8;  // Initialized default fixed >>8_FM for FM tx mod , shift audio data for AK4951  ,using top 8 bits s16 data (>>8)
+        shift_bits_s16 = 8;  // Initialized default fixed >>8_FM for FM tx mod, shift audio data for AK4951, using top 8 bits s16 data (>>8)
         options_ak4951_alc_mode.on_change = [this](size_t, int8_t v) {
-            ak4951_alc_and_wm8731_boost_GUI = v;                   // 0,..11,  AK4951 Mic -Automatic volume Level Control  options,
+            ak4951_alc_and_wm8731_boost_GUI = v;                   // 0..11, AK4951 Mic -Automatic volume Level Control options,
             audio::input::start(ak4951_alc_and_wm8731_boost_GUI);  // Detected (AK4951) ==> Set up proper ALC mode from 0..11 options
-            configure_baseband();                                  // sending fixed >>8_FM , var-parameters msg ,  to audiotx from this M0 to M4 process.
+            configure_baseband();                                  // sending fixed >>8_FM, var-parameters msg, to audiotx from this M0 to M4 process.
         };
     }
 
@@ -329,11 +328,11 @@ MicTXView::MicTXView(
     field_bw.on_change = [this](uint32_t v) {
         transmitter_model.set_channel_bandwidth(v * 1000);
     };
-    field_bw.set_value(10);  // pre-default first time, TX  deviation FM for NFM / FM
+    field_bw.set_value(10);  // pre-default first time, TX deviation FM for NFM / FM
 
-    // now , no need direct update , field_rfgain , field_rfamp (it is done in ui_transmitter.cpp)
+    // now, no need direct update, field_rfgain, field_rfamp (it is done in ui_transmitter.cpp)
 
-    options_mode.on_change = [this](size_t, int32_t v) {  //{ "NFM/FM", 0 }, { " WFM  ", 1 },{ "AM", 2 },{ "USB", 3 },{ "LSB", 4 },{ "DSB", 5 }
+    options_mode.on_change = [this](size_t, int32_t v) {  // { "NFM/FM", 0 }, { " WFM  ", 1 }, { "AM", 2 }, { "USB", 3 }, { "LSB", 4 }, { "DSB", 5 }
         enable_am = false;
         enable_usb = false;
         enable_lsb = false;
@@ -342,7 +341,7 @@ MicTXView::MicTXView(
 
         using option_t = std::pair<std::string, int32_t>;
         using options_t = std::vector<option_t>;
-        options_t rxbw;  // Aux structure to change dynamically  field_rxbw contents,
+        options_t rxbw;  // Aux structure to change dynamically field_rxbw contents,
 
         switch (v) {
             case 0:  //{ "FM", 0 }
@@ -354,15 +353,15 @@ MicTXView::MicTXView(
                 // field_bw.set_value(transmitter_model.channel_bandwidth() / 1000);
                 // if (rx_enabled)
                 rxaudio(rx_enabled);         // Update now if we have RX audio on
-                options_tone_key.hidden(0);  // we are in FM mode , we should have active the Key-tones & CTCSS option.
+                options_tone_key.hidden(0);  // we are in FM mode, we should have active the Key-tones & CTCSS option.
 
                 rxbw.emplace_back(" NFM1:8k5  ", 0);  // restore the original dynamic field_rxbw value.
                 rxbw.emplace_back(" NFM2:11k  ", 1);
                 rxbw.emplace_back(" FM  :16k  ", 2);
                 field_rxbw.set_options(rxbw);  // store that aux GUI option to the field_rxbw.
 
-                field_rxbw.hidden(0);  // we are in FM mode,  we need to allow the user set up of the RX NFM BW selection (8K5, 11K, 16K)
-                field_bw.hidden(0);    // we are in FM mode, we need to allow FM deviation parameter , in non FM mode.
+                field_rxbw.hidden(0);  // we are in FM mode, we need to allow the user set up of the RX NFM BW selection (8K5, 11K, 16K)
+                field_bw.hidden(0);    // we are in FM mode, we need to allow FM deviation parameter, in non FM mode.
                 break;
             case 1:  //{ "WFM", 1 }
                 enable_am = false;
@@ -374,38 +373,38 @@ MicTXView::MicTXView(
                 // field_bw.set_value(transmitter_model.channel_bandwidth() / 1000);
                 // if (rx_enabled)
                 rxaudio(rx_enabled);         // Update now if we have RX audio on
-                options_tone_key.hidden(0);  // we are in WFM mode , we should have active the Key-tones & CTCSS option.
+                options_tone_key.hidden(0);  // we are in WFM mode, we should have active the Key-tones & CTCSS option.
 
-                rxbw.emplace_back("  200k-WFM ", 0);  // We allow the user selection of the 3 x WFM BW filters, (0) WFM-200K, (1) WFM-180K , (2) WFM-40K .
+                rxbw.emplace_back("  200k-WFM ", 0);  // We allow the user selection of the 3 x WFM BW filters, (0) WFM-200K, (1) WFM-180K, (2) WFM-40K.
                 rxbw.emplace_back("  180k-WFM ", 1);
                 rxbw.emplace_back("   40k-WFM ", 2);
                 field_rxbw.set_options(rxbw);  // store that aux GUI option to the field_rxbw.
 
-                field_rxbw.hidden(0);  // we are in WFM mode,  we need to show to the user the selected BW WFM filter .
-                field_bw.hidden(0);    // we are in WFM mode, we need to allow WFM deviation parameter , in non FM mode.
+                field_rxbw.hidden(0);  // we are in WFM mode, we need to show to the user the selected BW WFM filter.
+                field_bw.hidden(0);    // we are in WFM mode, we need to allow WFM deviation parameter, in non FM mode.
                 break;
             case 2:  //{ "AM", 2 }
                 enable_am = true;
                 rxaudio(rx_enabled);                     // Update now if we have RX audio on
-                options_tone_key.set_selected_index(0);  // we are NOT in FM mode ,  we reset the possible previous key-tones &CTCSS selection.
+                options_tone_key.set_selected_index(0);  // we are NOT in FM mode, we reset the possible previous key-tones &CTCSS selection.
                 set_dirty();                             // Refresh display
                 options_tone_key.hidden(1);              // we hide that Key-tones & CTCSS input selecction, (no meaning in AM/DSB/SSB).
 
-                rxbw.emplace_back(" DSB1-9k   ", 0);  // we offer in AM DSB two audio BW 9k / 6k  .
+                rxbw.emplace_back(" DSB1-9k   ", 0);  // we offer in AM DSB two audio BW 9k / 6k.
                 rxbw.emplace_back(" DSB2-6k   ", 1);
                 field_rxbw.set_options(rxbw);  // store that aux GUI option to the field_rxbw.
 
-                field_rxbw.hidden(0);       // we show fixed RX  AM BW 6Khz
-                field_bw.hidden(1);         // we hide the FM TX deviation parameter , in non FM mode.
+                field_rxbw.hidden(0);       // we show fixed RX AM BW 6Khz
+                field_bw.hidden(1);         // we hide the FM TX deviation parameter, in non FM mode.
                 check_rogerbeep.hidden(0);  // make visible again the "rogerbeep" selection.
                 break;
             case 3:  //{ "USB", 3 }
                 enable_usb = true;
                 rxaudio(rx_enabled);               // Update now if we have RX audio on
-                check_rogerbeep.set_value(false);  // reset the possible activation of roger beep, because it is not compatible with SSB , by now.
+                check_rogerbeep.set_value(false);  // reset the possible activation of roger beep, because it is not compatible with SSB, by now.
                 check_rogerbeep.hidden(1);         // hide that roger beep selection.
 
-                rxbw.emplace_back("  USB+3k   ", 0);  // locked a fixed option , to display it .
+                rxbw.emplace_back("  USB+3k   ", 0);  // locked a fixed option, to display it.
                 field_rxbw.set_options(rxbw);         // store that aux GUI option to the field_rxbw.
 
                 set_dirty();  // Refresh display
@@ -413,10 +412,10 @@ MicTXView::MicTXView(
             case 4:  //{ "LSB", 4 }
                 enable_lsb = true;
                 rxaudio(rx_enabled);               // Update now if we have RX audio on
-                check_rogerbeep.set_value(false);  // reset the possible activation of roger beep, because it is not compatible with SSB , by now.
+                check_rogerbeep.set_value(false);  // reset the possible activation of roger beep, because it is not compatible with SSB, by now.
                 check_rogerbeep.hidden(1);         // hide that roger beep selection.
 
-                rxbw.emplace_back("  LSB-3k   ", 0);  // locked a fixed option , to display it .
+                rxbw.emplace_back("  LSB-3k   ", 0);  // locked a fixed option, to display it.
                 field_rxbw.set_options(rxbw);         // store that aux GUI option to the field_rxbw.
 
                 set_dirty();  // Refresh display
@@ -426,7 +425,7 @@ MicTXView::MicTXView(
                 rxaudio(rx_enabled);        // Update now if we have RX audio on
                 check_rogerbeep.hidden(0);  // make visible again the "rogerbeep" selection.
 
-                rxbw.emplace_back("SSB1:USB+3k", 0);  // added dynamically two options (index 0,1) to that DSB-C case to the  field_rxbw value.
+                rxbw.emplace_back("SSB1:USB+3k", 0);  // added dynamically two options (index 0,1) to that DSB-C case to the field_rxbw value.
                 rxbw.emplace_back("SSB2:LSB-3k", 1);
 
                 field_rxbw.set_options(rxbw);  // store that aux GUI option to the field_rxbw.
@@ -479,7 +478,7 @@ MicTXView::MicTXView(
 
     check_common_freq_tx_rx.on_select = [this](Checkbox&, bool v) {
         bool_same_F_tx_rx_enabled = v;
-        field_rxfrequency.hidden(v);                                           // Hide or show separated freq RX field . (When no hide user can enter down indep. freq for RX)
+        field_rxfrequency.hidden(v);                                           // Hide or show separated freq RX field. (When no hide user can enter down indep. freq for RX)
         set_dirty();                                                           // Refresh GUI interface
         receiver_model.set_target_frequency(v ? tx_frequency : rx_frequency);  // To go to the proper tuned freq. when toggling it
     };
@@ -510,17 +509,17 @@ MicTXView::MicTXView(
 
     field_rxbw.on_change = [this](size_t, int32_t v) {
         if (!(enable_am || enable_usb || enable_lsb || enable_dsb || enable_wfm)) {
-            // In Previous fw versions, that nbfm_configuration(n)  was done in any mode (FM/AM/SSB/DSB)...strictly speaking only need it in (NFM/FM)
-            receiver_model.set_nbfm_configuration(v);    // we are in  NFM/FM case, we need to  select proper NFM/FM RX channel filter , NFM BW 8K5(0), NFM BW 11K(1) , FM BW 16K (2)
-        } else {                                         // we are not in  NFM/FM mode  .(we could be in any of the rest : AM /USB/LSB/DSB-SC)
-            if (enable_am) {                             // we are in AM TX mode , we will allow both independent RX audio BW :  AM 9K (9K00AE3 / AM 6K (6K00AE3). (In AM option v can be 0 (9k) , 1 (6k)
-                receiver_model.set_am_configuration(v);  // we are in AM TX mode , we need to  select proper AM full path config AM-9K filter. 0+0 =>AM-9K(0), 0+1=1 =>AM-6K(1),
+            // In Previous fw versions, that nbfm_configuration(n) was done in any mode (FM/AM/SSB/DSB)...strictly speaking only need it in (NFM/FM)
+            receiver_model.set_nbfm_configuration(v);    // we are in NFM/FM case, we need to select proper NFM/FM RX channel filter, NFM BW 8K5(0), NFM BW 11K(1), FM BW 16K (2)
+        } else {                                         // we are not in NFM/FM mode. (we could be in any of the rest : AM /USB/LSB/DSB-SC)
+            if (enable_am) {                             // we are in AM TX mode, we will allow both independent RX audio BW : AM 9K (9K00AE3 / AM 6K (6K00AE3). (In AM option v can be 0 (9k), 1 (6k)
+                receiver_model.set_am_configuration(v);  // we are in AM TX mode, we need to select proper AM full path config AM-9K filter. 0+0 =>AM-9K(0), 0+1=1 =>AM-6K(1),
             }
-            if (enable_dsb) {                                // we are in DSB-SC in TX mode , we will allow both independent RX SSB demodulation (USB / LSB side band). in that submenu, v is 0 (SSB1 USB) or 1 (SSB2 LSB)
-                receiver_model.set_am_configuration(v + 2);  // we are in DSB-SC TX mode , we need to  select proper SSB filter. 0+2 =>usb(2), 1+2=3 =>lsb(3),
+            if (enable_dsb) {                                // we are in DSB-SC in TX mode, we will allow both independent RX SSB demodulation (USB / LSB side band). in that submenu, v is 0 (SSB1 USB) or 1 (SSB2 LSB)
+                receiver_model.set_am_configuration(v + 2);  // we are in DSB-SC TX mode, we need to select proper SSB filter. 0+2 =>usb(2), 1+2=3 =>lsb(3),
             }
             if (enable_wfm) {
-                receiver_model.set_wfm_configuration(v);  // we are in  WFM case, we need to  select proper WFB RX BW filter , WFM BW 200K(0), WFM BW 180K(1) , WFM BW 40K(2)
+                receiver_model.set_wfm_configuration(v);  // we are in WFM case, we need to select proper WFB RX BW filter, WFM BW 200K(0), WFM BW 180K(1), WFM BW 40K(2)
             }
         }
     };
@@ -607,6 +606,36 @@ MicTXView::MicTXView(
     audio::input::start(ak4951_alc_and_wm8731_boost_GUI);  // When detected AK4951 => set up ALC mode; when detected WM8731 => set up mic_boost ON/OFF.
 }
 
+MicTXView::MicTXView(
+    NavigationView& nav,
+    ReceiverModel::settings_t override)
+    : MicTXView(nav) {
+    // Try to use the modulation/bandwidth from RX settings.
+    // TODO: These concepts should be merged so there's only one.
+    // TODO: enums/constants for these indexes.
+    switch (override.mode) {
+        case ReceiverModel::Mode::AMAudio:
+            options_mode.set_selected_index(2);
+            break;
+        case ReceiverModel::Mode::NarrowbandFMAudio:
+            options_mode.set_selected_index(0);
+            break;
+        case ReceiverModel::Mode::WidebandFMAudio:
+            options_mode.set_selected_index(1);
+            break;
+
+        // Unsupported modulations.
+        case ReceiverModel::Mode::SpectrumAnalysis:
+        case ReceiverModel::Mode::Capture:
+        default:
+            break;
+    }
+
+    // TODO: bandwidth selection is tied too tightly to the UI
+    // controls. It's not possible to set the bandwidth here without
+    // refactoring. Also options_mode seems to have a category error.
+}
+
 MicTXView::~MicTXView() {
     audio::input::stop();
     transmitter_model.set_target_frequency(tx_frequency);  // Save Tx frequency instead of Rx. Or maybe we need some "System Wide" changes to seperate Tx and Rx frequency.

firmware/application/apps/ui_mictx.hpp

@@ -20,6 +20,8 @@
  * Boston, MA 02110-1301, USA.
  */
 
+// TODO: Consolidate Modulation/Bandwidth modes/settings with freqman/receiver_model.
+
 #ifndef __UI_MICTX_H__
 #define __UI_MICTX_H__
 
@@ -33,7 +35,6 @@
 #include "ui_navigation.hpp"
 #include "ui_receiver.hpp"
 #include "transmitter_model.hpp"
-#include "tone_key.hpp"
 #include "message.hpp"
 #include "receiver_model.hpp"
 #include "ui_transmitter.hpp"
@@ -43,6 +44,7 @@ namespace ui {
 class MicTXView : public View {
    public:
     MicTXView(NavigationView& nav);
+    MicTXView(NavigationView& nav, ReceiverModel::settings_t override);
     ~MicTXView();
 
     MicTXView(const MicTXView&) = delete;
@@ -117,18 +119,19 @@ class MicTXView : public View {
     uint8_t shift_bits_s16{4};  // shift bits factor to the captured ADC S16 audio sample.
 
     // AM TX Stuff
+    // TODO: Some of this stuff is mutually exclusive. Need a better representation.
     bool enable_am{false};
     bool enable_dsb{false};
     bool enable_usb{false};
     bool enable_lsb{false};
-    bool enable_wfm{false};  // added to distinguish in the FM mode ,  RX BW : NFM (8K5, 11K), FM (16K), WFM(200K)
+    bool enable_wfm{false};  // added to distinguish in the FM mode, RX BW : NFM (8K5, 11K), FM (16K), WFM(200K)
 
     Labels labels_WM8731{
         {{3 * 8, 1 * 8}, "MIC-GAIN:", Color::light_grey()},
         {{17 * 8, 1 * 8}, "Boost", Color::light_grey()},
         {{3 * 8, 3 * 8}, "F:", Color::light_grey()},
         {{15 * 8, 3 * 8}, "FM TXBW:    kHz", Color::light_grey()},  // to be more symetric and consistent to the below FM RXBW
-        {{18 * 8, (5 * 8)}, "Mode:", Color::light_grey()},          // now , no need to handle GAIN , Amp here It is handled by ui_transmitter.cpp
+        {{18 * 8, (5 * 8)}, "Mode:", Color::light_grey()},          // now, no need to handle GAIN, Amp here It is handled by ui_transmitter.cpp
         {{3 * 8, 8 * 8}, "TX Activation:", Color::light_grey()},    // we delete  { { 3 * 8, 5 * 8 }, "GAIN:", Color::light_grey() },
         {{4 * 8, 10 * 8}, "LVL:", Color::light_grey()},             // we delete  { {11 * 8, 5 * 8 }, "Amp:", Color::light_grey() },
         {{12 * 8, 10 * 8}, "ATT:", Color::light_grey()},
@@ -147,7 +150,7 @@ class MicTXView : public View {
         {{17 * 8, 1 * 8}, "ALC", Color::light_grey()},
         {{3 * 8, 3 * 8}, "F:", Color::light_grey()},
         {{15 * 8, 3 * 8}, "FM TXBW:    kHz", Color::light_grey()},
-        {{18 * 8, (5 * 8)}, "Mode:", Color::light_grey()},        // now , no need to handle GAIN , Amp here It is handled by ui_transmitter.cpp
+        {{18 * 8, (5 * 8)}, "Mode:", Color::light_grey()},        // now, no need to handle GAIN, Amp here It is handled by ui_transmitter.cpp
         {{3 * 8, 8 * 8}, "TX Activation:", Color::light_grey()},  // we delete  { { 3 * 8, 5 * 8 }, "GAIN:", Color::light_grey() },
         {{4 * 8, 10 * 8}, "LVL:", Color::light_grey()},           // we delete  { {11 * 8, 5 * 8 }, "Amp:", Color::light_grey() },
         {{12 * 8, 10 * 8}, "ATT:", Color::light_grey()},
@@ -176,15 +179,15 @@ class MicTXView : public View {
          {"x2.0", 20}}};
 
     OptionsField options_ak4951_alc_mode{
-        {20 * 8, 1 * 8},  // Coordinates are: int:x (px), int:y (px)
+        {20 * 8, 1 * 8},
         11,
         {
-            {" OFF-12kHz", 0},   // Nothing changed from ORIGINAL,keeping ALL programmable  AK4951 Digital Block->OFF, sampling 24Khz)
+            {" OFF-12kHz", 0},   // Nothing changed from ORIGINAL, keeping ALL programmable AK4951 Digital Block->OFF, sampling 24Khz)
             {"+12dB-6kHz", 1},   // ALC-> on, (+12dB's) Auto Vol max + Wind Noise cancel + LPF 6kHz + Pre-amp Mic (+21dB=original)
             {"+09dB-6kHz", 2},   // ALC-> on, (+09dB's) Auto Vol max + Wind Noise cancel + LPF 6kHz + Pre-amp Mic (+21dB=original)
             {"+06dB-6kHz", 3},   // ALC-> on, (+06dB's) Auto Vol max + Wind Noise cancel + LPF 6kHz + Pre-amp Mic (+21dB=original)
-            {"+03dB-2kHz", 4},   // ALC-> on, (+03dB's) Auto Vol max + Wind Noise cancel + LPF 3,5k + Pre-amp Mic (+21dB=original)+ EQ boosting ~<2kHz (f0~1k1,fb:1,7K, k=1,8)
-            {"+03dB-4kHz", 5},   // ALC-> on, (+03dB's) Auto Vol max + Wind Noise cancel + LPF 4kHz + Pre-amp Mic (+21dB=original)+ EQ boosting ~<3kHz (f0~1k4,fb~2,4k, k=1,8)
+            {"+03dB-2kHz", 4},   // ALC-> on, (+03dB's) Auto Vol max + Wind Noise cancel + LPF 3,5k + Pre-amp Mic (+21dB=original)+ EQ boosting ~<2kHz (f0~1k1, fb:1,7K, k=1,8)
+            {"+03dB-4kHz", 5},   // ALC-> on, (+03dB's) Auto Vol max + Wind Noise cancel + LPF 4kHz + Pre-amp Mic (+21dB=original)+ EQ boosting ~<3kHz (f0~1k4, fb~2,4k, k=1,8)
             {"+03dB-6kHz", 6},   // ALC-> on, (+03dB's) Auto Vol max + Wind Noise cancel + LPF 6kHz + Pre-amp Mic (+21dB=original)
             {"+00dB-6kHz", 7},   // ALC-> on, (+00dB's) Auto Vol max + Wind Noise cancel + LPF 6kHz + Pre-amp Mic (+21dB=original)
             {"-03dB-6kHz", 8},   // ALC-> on, (-03dB's) Auto Vol max + Wind Noise cancel + LPF 6kHz + Pre-amp Mic (+21dB=original)
@@ -194,14 +197,14 @@ class MicTXView : public View {
         }};
 
     OptionsField options_wm8731_boost_mode{
-        {22 * 8, 1 * 8},  // Coordinates are: int:x (px), int:y (px)
+        {22 * 8, 1 * 8},
         5,
         {
-            {"ON +12dB", 0},  // WM8731 Mic Boost ON ,original+12dBs condition, easy to saturate ADC sat in high voice  ,relative G = +12 dB's respect ref level
-            {"ON +06dB", 1},  // WM8731 Mic Boost ON ,original+6 dBs condition, easy to saturate ADC sat in high voice  ,relative G = +06 dB's respect ref level
-            {"OFF+04dB", 2},  // WM8731 Mic Boost OFF to avoid ADC sat in high voice  ,relative  G =  +04 dB's (respect ref level) , always effective sampling 24khz
-            {"OFF-02dB", 3},  // WM8731 Mic Boost OFF to avoid ADC sat in high voice  ,relative  G =  -02 dB's (respect ref level)
-            {"OFF-08dB", 4},  // WM8731 Mic Boost OFF to avoid ADC sat in high voice  ,relative  G =  -12 dB's (respect ref level)
+            {"ON +12dB", 0},  // WM8731 Mic Boost ON, original+12dBs condition, easy to saturate ADC sat in high voice, relative G = +12 dB's respect ref level
+            {"ON +06dB", 1},  // WM8731 Mic Boost ON, original+6 dBs condition, easy to saturate ADC sat in high voice, relative G = +06 dB's respect ref level
+            {"OFF+04dB", 2},  // WM8731 Mic Boost OFF to avoid ADC sat in high voice, relative G = +04 dB's (respect ref level), always effective sampling 24khz
+            {"OFF-02dB", 3},  // WM8731 Mic Boost OFF to avoid ADC sat in high voice, relative G = -02 dB's (respect ref level)
+            {"OFF-08dB", 4},  // WM8731 Mic Boost OFF to avoid ADC sat in high voice, relative G = -12 dB's (respect ref level)
         }};
 
     // TODO: Use TxFrequencyField
@@ -227,7 +230,7 @@ class MicTXView : public View {
         {
             {"NFM/FM", 0},
             {" WFM  ", 1},
-            {"  AM  ", 2},  // in fact that TX mode = AM -DSB with carrier .
+            {"  AM  ", 2},  // in fact that TX mode = AM -DSB with carrier.
             {" USB  ", 3},
             {" LSB  ", 4},
             {"DSB-SC", 5}  // We are TX Double Side AM Band with suppressed carrier, and allowing in RX both indep SSB lateral band (USB/LSB).
@@ -269,7 +272,7 @@ class MicTXView : public View {
 
     OptionsField options_tone_key{
         {12 * 8, (13 * 8) - 5},
-        23,
+        18,
         {}};
 
     Checkbox check_rogerbeep{

firmware/application/apps/ui_nrf_rx.cpp

@@ -76,7 +76,6 @@ NRFRxView::NRFRxView(NavigationView& nav)
     audio::set_rate(audio::Rate::Hz_24000);
     audio::output::start();
 
-    receiver_model.set_modulation(ReceiverModel::Mode::WidebandFMAudio);
     receiver_model.enable();
 }
 

firmware/application/apps/ui_nrf_rx.hpp

@@ -51,8 +51,8 @@ class NRFRxView : public View {
     NavigationView& nav_;
     RxRadioState radio_state_{
         4000000 /* bandwidth */,
-        4000000 /* sampling rate */
-    };
+        4000000 /* sampling rate */,
+        ReceiverModel::Mode::WidebandFMAudio};
     app_settings::SettingsManager settings_{
         "rx_nrf", app_settings::Mode::RX};
 

firmware/application/apps/ui_playlist.cpp

@@ -23,11 +23,12 @@
  */
 
 #include "ui_playlist.hpp"
+
 #include "convert.hpp"
 #include "file_reader.hpp"
+#include "io_file.hpp"
 #include "string_format.hpp"
 #include "ui_fileman.hpp"
-#include "io_file.hpp"
 #include "utility.hpp"
 
 #include "baseband_api.hpp"
@@ -39,11 +40,17 @@
 using namespace portapack;
 namespace fs = std::filesystem;
 
-/* TODO: wouldn't it be easier if the playlist were just a list of C16 files
- * (and maybe delays) and then read the data file next to the C16 file? */
+/* TODO
+ * - Should frequency overrides be saved in the playlist?
+ * - Start playing from current track (vs start over)?
+ */
 
 namespace ui {
 
+// TODO: consolidate extesions into a shared header?
+static const fs::path c16_ext = u".C16";
+static const fs::path ppl_ext = u".PPL";
+
 void PlaylistView::load_file(const fs::path& playlist_path) {
     File playlist_file;
     auto error = playlist_file.open(playlist_path.string());
@@ -57,57 +64,154 @@ void PlaylistView::load_file(const fs::path& playlist_path) {
             continue;  // Empty or comment line.
 
         auto cols = split_string(line, ',');
-        if (cols.size() < 3)
-            continue;  // Line doesn't have enough columns.
+        auto entry = load_entry(trim(cols[0]));
 
-        playlist_entry entry{};
+        if (!entry)
+            continue;
 
-        parse_int(cols[0], entry.replay_frequency);
-        parse_int(cols[2], entry.sample_rate);
-        if (entry.replay_frequency == 0 || entry.sample_rate == 0)
-            continue;  // Invalid freq or rate.
+        // Read optional delay value.
+        if (cols.size() > 1)
+            parse_int(cols[1], entry->ms_delay);
 
-        entry.replay_file = fs::path{u"/"} + std::string{cols[1]};
-
-        if (cols.size() == 4)  // Optional delay value.
-            parse_int(cols[3], entry.initial_delay);
-
-        playlist_db_.emplace_back(std::move(entry));
+        playlist_db_.emplace_back(*std::move(entry));
     }
 }
 
+Optional<PlaylistView::playlist_entry> PlaylistView::load_entry(fs::path&& path) {
+    File capture_file;
+
+    auto error = capture_file.open(path);
+    if (error)
+        return {};
+
+    // Read metafile if it exists.
+    auto metadata_path = get_metadata_path(path);
+    auto metadata = read_metadata_file(metadata_path);
+
+    // If no metadata found, fallback to the TX frequency.
+    if (!metadata)
+        metadata = {transmitter_model.target_frequency(), 500'000};
+
+    return playlist_entry{
+        std::move(path),
+        *metadata,
+        capture_file.size(),
+        0u};
+}
+
 void PlaylistView::on_file_changed(const fs::path& new_file_path) {
     stop();
-    reset();
 
+    current_index_ = 0;
     playlist_path_ = new_file_path;
     playlist_db_.clear();
     load_file(playlist_path_);
 
     update_ui();
-    button_play.focus();
+
+    // TODO: fix in UI framework with 'try_focus()'?
+    // Hack around focus getting called by ctor before parent is set.
+    if (parent())
+        button_play.focus();
 }
 
-void PlaylistView::reset() {
-    current_track_ = 0;
-    current_entry_ = nullptr;
-    current_entry_size_ = 0;
+void PlaylistView::open_file(bool prompt_save) {
+    if (playlist_dirty_ && prompt_save) {
+        nav_.display_modal(
+            "Save?", "Save changes?", YESNO,
+            [this](bool choice) {
+                if (choice)
+                    save_file(false);
+            });
+        nav_.set_on_pop([this]() { open_file(false); });
+        return;
+    }
+
+    auto open_view = nav_.push<FileLoadView>(".PPL");
+    open_view->push_dir(u"PLAYLIST");
+    open_view->on_changed = [this](fs::path new_file_path) {
+        on_file_changed(new_file_path);
+    };
+}
+
+void PlaylistView::save_file(bool show_dialogs) {
+    if (!playlist_dirty_ || playlist_path_.empty())
+        return;
+
+    ensure_directory(playlist_path_.parent_path());
+
+    File playlist_file;
+    auto error = playlist_file.create(playlist_path_.string());
+
+    if (error) {
+        if (show_dialogs)
+            nav_.display_modal(
+                "Save Error",
+                "Could not save file\n" + playlist_path_.string());
+        return;
+    }
+
+    for (const auto& entry : playlist_db_) {
+        playlist_file.write_line(
+            entry.path.string() + "," +
+            to_string_dec_uint(entry.ms_delay));
+    }
+
+    playlist_dirty_ = false;
+
+    if (show_dialogs)
+        nav_.display_modal(
+            "Save",
+            "Saved playlist\n" + playlist_path_.string());
+}
+
+void PlaylistView::add_entry(fs::path&& path) {
+    if (playlist_path_.empty()) {
+        playlist_path_ = next_filename_matching_pattern(u"/PLAYLIST/PLAY_????.PPL");
+
+        // Hack around focus getting called by ctor before parent is set.
+        if (parent())
+            button_play.focus();
+    }
+
+    auto entry = load_entry(std::move(path));
+    if (entry) {
+        playlist_db_.emplace_back(*std::move(entry));
+        current_index_ = playlist_db_.size() - 1;
+        playlist_dirty_ = true;
+    }
+
+    update_ui();
+}
+
+void PlaylistView::delete_entry() {
+    if (playlist_db_.empty())
+        return;
+
+    // Ugh, the STL is gross.
+    playlist_db_.erase(playlist_db_.begin() + current_index_);
+
+    if (current_index_ > 0)
+        --current_index_;
+
+    playlist_dirty_ = true;
+    update_ui();
 }
 
 void PlaylistView::show_file_error(const fs::path& path, const std::string& message) {
     nav_.display_modal("Error", "Error opening file \n" + path.string() + "\n" + message);
 }
 
+PlaylistView::playlist_entry* PlaylistView::current() {
+    return playlist_db_.empty() ? nullptr : &playlist_db_[current_index_];
+}
+
 bool PlaylistView::is_active() const {
     return replay_thread_ != nullptr;
 }
 
-bool PlaylistView::loop() const {
-    return check_loop.value();
-}
-
-bool PlaylistView::is_done() const {
-    return current_track_ >= playlist_db_.size();
+bool PlaylistView::at_end() const {
+    return current_index_ >= playlist_db_.size();
 }
 
 void PlaylistView::toggle() {
@@ -118,25 +222,24 @@ void PlaylistView::toggle() {
 }
 
 void PlaylistView::start() {
-    reset();
-
     if (playlist_db_.empty())
         return;  // Nothing to do.
 
-    if (next_track())
-        send_current_track();
+    current_index_ = 0u;
+    send_current_track();
 }
 
 /* Advance to the next track in the playlist. */
 bool PlaylistView::next_track() {
-    if (is_done()) {
-        if (loop())
-            current_track_ = 0;
-        else
-            return false;  // All done.
+    ++current_index_;
+
+    // Reset to the 0 once at the end to prevent current_index_
+    // from being outside the bounds of playlist_db_ when painting.
+    if (at_end()) {
+        current_index_ = 0;
+        return check_loop.value();  // Keep going if looping.
     }
-    current_entry_ = &playlist_db_[current_track_];
-    current_track_++;
+
     return true;
 }
 
@@ -147,30 +250,25 @@ void PlaylistView::send_current_track() {
     transmitter_model.disable();
     ready_signal_ = false;
 
-    if (!current_entry_)
+    if (!current())
         return;
 
+    // TODO: Use a timer so the UI isn't frozen.
+    if (current()->ms_delay > 0)
+        chThdSleepMilliseconds(current()->ms_delay);
+
     // Open the sample file to send.
     auto reader = std::make_unique<FileReader>();
-    auto error = reader->open(current_entry_->replay_file);
+    auto error = reader->open(current()->path);
     if (error) {
-        show_file_error(current_entry_->replay_file, "Can't open file to send.");
+        show_file_error(current()->path, "Can't open file to send.");
         return;
     }
 
-    // Get the sample file size for the progress bar.
-    current_entry_size_ = reader->file().size();
-    progressbar_transmit.set_value(0);
-
-    // Wait a bit before sending if specified.
-    // TODO: this pauses the main thread, move into ReplayThread instead.
-    if (current_entry_->initial_delay > 0)
-        chThdSleepMilliseconds(current_entry_->initial_delay);
-
-    // ReplayThread starts immediately on contruction so
+    // ReplayThread starts immediately on construction so
     // these need to be set before creating the ReplayThread.
-    transmitter_model.set_target_frequency(current_entry_->replay_frequency);
-    transmitter_model.set_sampling_rate(current_entry_->sample_rate * 8);
+    transmitter_model.set_target_frequency(current()->metadata.center_frequency);
+    transmitter_model.set_sampling_rate(current()->metadata.sample_rate * 8);
     transmitter_model.set_baseband_bandwidth(baseband_bandwidth);
     transmitter_model.enable();
 
@@ -178,6 +276,9 @@ void PlaylistView::send_current_track() {
     // TODO: Why doesn't the transmitter_model just handle this?
     baseband::set_sample_rate(transmitter_model.sampling_rate());
 
+    // Reset the transmit progress bar.
+    progressbar_transmit.set_value(0);
+
     // Use the ReplayThread class to send the data.
     replay_thread_ = std::make_unique<ReplayThread>(
         std::move(reader),
@@ -197,37 +298,48 @@ void PlaylistView::stop() {
     // This terminates the underlying chThread.
     replay_thread_.reset();
     transmitter_model.disable();
+
+    // Reset the transmit progress bar.
+    progressbar_transmit.set_value(0);
     update_ui();
 }
 
 void PlaylistView::update_ui() {
     if (playlist_db_.empty()) {
-        text_track.set("Open a playlist file.");
-    } else {
-        text_track.set(
-            to_string_dec_uint(current_track_) + "/" +
-            to_string_dec_uint(playlist_db_.size()) + " " +
-            playlist_path_.filename().string());
-    }
-
-    button_play.set_bitmap(is_active() ? &bitmap_stop : &bitmap_play);
-
-    progressbar_track.set_value(current_track_);
-    progressbar_track.set_max(playlist_db_.size());
-    progressbar_transmit.set_max(current_entry_size_);
-
-    if (current_entry_) {
-        auto duration = ms_duration(current_entry_size_, current_entry_->sample_rate, 4);
-        text_filename.set(truncate(current_entry_->replay_file.filename().string(), 12));
-        text_sample_rate.set(unit_auto_scale(current_entry_->sample_rate, 3, 0) + "Hz");
-        text_duration.set(to_string_time_ms(duration));
-        text_frequency.set(to_string_short_freq(current_entry_->replay_frequency));
-    } else {
         text_filename.set("-");
         text_sample_rate.set("-");
         text_duration.set("-");
-        text_frequency.set("-");
+
+        if (playlist_path_.empty())
+            text_track.set("Open playlist or add capture.");
+        else
+            text_track.set(playlist_path_.filename().string());
+
+        progressbar_track.set_value(0);
+        progressbar_track.set_max(0);
+        progressbar_transmit.set_max(0);
+
+    } else {
+        chDbgAssert(!at_end(), "update_ui #1", "current_index_ invalid");
+
+        text_filename.set(current()->path.filename().string());
+        text_sample_rate.set(unit_auto_scale(current()->metadata.sample_rate, 3, 0) + "Hz");
+
+        auto duration = ms_duration(current()->file_size, current()->metadata.sample_rate, 4);
+        text_duration.set(to_string_time_ms(duration));
+        field_frequency.set_value(current()->metadata.center_frequency);
+
+        text_track.set(
+            to_string_dec_uint(current_index_ + 1) + "/" +
+            to_string_dec_uint(playlist_db_.size()) + " " +
+            playlist_path_.filename().string());
+
+        progressbar_track.set_max(playlist_db_.size() - 1);
+        progressbar_track.set_value(current_index_);
+        progressbar_transmit.set_max(current()->file_size);
     }
+
+    button_play.set_bitmap(is_active() ? &bitmap_stop : &bitmap_play);
 }
 
 void PlaylistView::on_tx_progress(uint32_t progress) {
@@ -243,7 +355,7 @@ void PlaylistView::handle_replay_thread_done(uint32_t return_code) {
     }
 
     if (return_code == ReplayThread::READ_ERROR)
-        show_file_error(current_entry_->replay_file, "Replay read failed.");
+        show_file_error(current()->path, "Replay read failed.");
 
     stop();
 }
@@ -254,36 +366,103 @@ PlaylistView::PlaylistView(
     baseband::run_image(portapack::spi_flash::image_tag_replay);
 
     add_children({
-        &button_open,
         &text_filename,
         &text_sample_rate,
         &text_duration,
         &progressbar_track,
         &progressbar_transmit,
-        &text_frequency,
+        &field_frequency,
         &tx_view,
         &check_loop,
         &button_play,
         &text_track,
+        &button_prev,
+        &button_add,
+        &button_delete,
+        &button_open,
+        &button_save,
+        &button_next,
         &waterfall,
     });
 
     waterfall.show_audio_spectrum_view(false);
 
+    field_frequency.set_value(100'000'000);
+    field_frequency.on_change = [this](rf::Frequency f) {
+        if (current())
+            current()->metadata.center_frequency = f;
+    };
+    field_frequency.on_edit = [this]() {
+        auto freq_view = nav_.push<FrequencyKeypadView>(field_frequency.value());
+        freq_view->on_changed = [this](rf::Frequency f) {
+            field_frequency.set_value(f);
+        };
+    };
+
     button_play.on_select = [this](ImageButton&) {
         toggle();
     };
 
-    button_open.on_select = [this, &nav](Button&) {
-        auto open_view = nav.push<FileLoadView>(".PPL");
-        open_view->on_changed = [this](std::filesystem::path new_file_path) {
-            on_file_changed(new_file_path);
+    button_add.on_select = [this, &nav]() {
+        if (is_active())
+            return;
+        auto open_view = nav_.push<FileLoadView>(".C16");
+        open_view->push_dir(u"CAPTURES");
+        open_view->on_changed = [this](fs::path path) {
+            add_entry(std::move(path));
         };
     };
 
+    button_delete.on_select = [this, &nav]() {
+        if (is_active())
+            return;
+        delete_entry();
+    };
+
+    button_open.on_select = [this, &nav]() {
+        if (is_active())
+            stop();
+        open_file();
+    };
+
+    button_save.on_select = [this]() {
+        if (is_active())
+            stop();
+        save_file();
+    };
+
+    button_prev.on_select = [this]() {
+        if (is_active())
+            return;
+        --current_index_;
+        if (at_end())
+            current_index_ = playlist_db_.size() - 1;
+        update_ui();
+    };
+
+    button_next.on_select = [this]() {
+        if (is_active())
+            return;
+        ++current_index_;
+        if (at_end())
+            current_index_ = 0;
+        update_ui();
+    };
+
     update_ui();
 }
 
+PlaylistView::PlaylistView(
+    NavigationView& nav,
+    const fs::path& path)
+    : PlaylistView(nav) {
+    auto ext = path.extension();
+    if (path_iequal(ext, ppl_ext))
+        on_file_changed(path);
+    else if (path_iequal(ext, c16_ext))
+        add_entry(fs::path{path});
+}
+
 PlaylistView::~PlaylistView() {
     transmitter_model.disable();
     baseband::shutdown();
@@ -292,20 +471,23 @@ PlaylistView::~PlaylistView() {
 void PlaylistView::set_parent_rect(Rect new_parent_rect) {
     View::set_parent_rect(new_parent_rect);
 
-    const ui::Rect waterfall_rect{
+    ui::Rect waterfall_rect{
         0, header_height, new_parent_rect.width(),
         new_parent_rect.height() - header_height};
     waterfall.set_parent_rect(waterfall_rect);
 }
 
+void PlaylistView::focus() {
+    if (playlist_path_.empty())
+        button_add.focus();
+    else
+        button_play.focus();
+}
+
 void PlaylistView::on_hide() {
     stop();
     waterfall.on_hide();
     View::on_hide();
 }
 
-void PlaylistView::focus() {
-    button_open.focus();
-}
-
 } /* namespace ui */

firmware/application/apps/ui_playlist.hpp

@@ -25,13 +25,16 @@
 #define NORMAL_UI false
 
 #include "app_settings.hpp"
+#include "bitmap.hpp"
+#include "file.hpp"
+#include "metadata_file.hpp"
 #include "radio_state.hpp"
-#include "ui_widget.hpp"
+#include "replay_thread.hpp"
 #include "ui_navigation.hpp"
 #include "ui_receiver.hpp"
-#include "replay_thread.hpp"
 #include "ui_spectrum.hpp"
 #include "ui_transmitter.hpp"
+#include "ui_widget.hpp"
 
 #include <string>
 #include <memory>
@@ -42,17 +45,15 @@ namespace ui {
 class PlaylistView : public View {
    public:
     PlaylistView(NavigationView& nav);
+    PlaylistView(NavigationView& nav, const std::filesystem::path& path);
     ~PlaylistView();
 
-    // Disable copy to make -Weffc++ happy.
-    PlaylistView(const PlaylistView&) = delete;
-    PlaylistView& operator=(const PlaylistView&) = delete;
-
+    // Following 2 called by 'NavigationView::update_view' after view is created.
     void set_parent_rect(Rect new_parent_rect) override;
-    void on_hide() override;
     void focus() override;
+    void on_hide() override;
 
-    std::string title() const override { return "Playlist"; };
+    std::string title() const override { return "Replay"; };
 
    private:
     NavigationView& nav_;
@@ -61,35 +62,40 @@ class PlaylistView : public View {
         "tx_playlist", app_settings::Mode::TX};
 
     // More header == less spectrum view.
-    static constexpr ui::Dim header_height = 4 * 16;
+    static constexpr ui::Dim header_height = 6 * 16;
     static constexpr uint32_t baseband_bandwidth = 2500000;
 
     struct playlist_entry {
-        rf::Frequency replay_frequency{0};
-        std::filesystem::path replay_file{};
-        uint32_t sample_rate{};
-        uint32_t initial_delay{};
+        std::filesystem::path path{};
+        capture_metadata metadata{};
+        File::Size file_size{};
+        uint32_t ms_delay{};
     };
 
     std::unique_ptr<ReplayThread> replay_thread_{};
     bool ready_signal_{};  // Used to signal the ReplayThread.
 
-    size_t current_track_{0};
-    const playlist_entry* current_entry_{};
-    size_t current_entry_size_{0};
+    size_t current_index_{0};
+    bool playlist_dirty_{};
     std::vector<playlist_entry> playlist_db_{};
     std::filesystem::path playlist_path_{};
 
     void load_file(const std::filesystem::path& path);
+    Optional<playlist_entry> load_entry(std::filesystem::path&& path);
     void on_file_changed(const std::filesystem::path& path);
+    void open_file(bool prompt_save = true);
+    void save_file(bool show_dialogs = true);
+    void add_entry(std::filesystem::path&& path);
+    void delete_entry();
     void reset();
     void show_file_error(
         const std::filesystem::path& path,
         const std::string& message);
 
+    playlist_entry* current();
+
     bool is_active() const;
-    bool loop() const;
-    bool is_done() const;
+    bool at_end() const;
 
     void toggle();
     void start();
@@ -103,31 +109,33 @@ class PlaylistView : public View {
     void on_tx_progress(uint32_t progress);
     void handle_replay_thread_done(uint32_t return_code);
 
-    Button button_open{
-        {0 * 8, 0 * 16, 10 * 8, 2 * 16},
-        "Open PPL"};
-
     Text text_filename{
-        {11 * 8, 0 * 16, 12 * 8, 16}};
+        {0 * 8, 0 * 16, 30 * 8, 16}};
+
+    FrequencyField field_frequency{
+        {0 * 8, 1 * 16}};
 
     Text text_sample_rate{
-        {24 * 8, 0 * 16, 6 * 8, 16}};
+        {10 * 8, 1 * 16, 7 * 8, 16}};
 
-    Text text_duration{
-        {11 * 8, 1 * 16, 6 * 8, 16}};
+    /*v making there's 1px line (instead of two) between two progress bars,
+     * by letting 1px overlapped.
+     * So, since they overlapped 1px, they are visually same, and looks better.
+     */
 
     ProgressBar progressbar_track{
-        {18 * 8, 1 * 16, 12 * 8, 8}};
+        {18 * 8, 1 * 16, 12 * 8, 8 + 1}};
 
     ProgressBar progressbar_transmit{
-        {18 * 8, 3 * 8, 12 * 8, 8}};
+        {18 * 8, 3 * 8 - 1, 12 * 8, 8}};
 
-    Text text_frequency{
-        {0 * 8, 2 * 16, 9 * 8, 16}};
+    Text text_duration{
+        {0 * 8, 2 * 16, 5 * 8, 16}};
+
+    // TODO: delay duration field.
 
     TransmitterView2 tx_view{
-        74, 1 * 8, SHORT_UI  // x(columns), y (line) position.
-    };
+        9 * 8, 1 * 8, SHORT_UI};
 
     Checkbox check_loop{
         {21 * 8, 2 * 16},
@@ -144,7 +152,43 @@ class PlaylistView : public View {
     Text text_track{
         {0 * 8, 3 * 16, 30 * 8, 16}};
 
-    spectrum::WaterfallWidget waterfall{};
+    NewButton button_prev{
+        {2 * 8, 4 * 16, 4 * 8, 2 * 16},
+        "",
+        &bitmap_arrow_left,
+        Color::dark_grey()};
+
+    NewButton button_next{
+        {6 * 8, 4 * 16, 4 * 8, 2 * 16},
+        "",
+        &bitmap_arrow_right,
+        Color::dark_grey()};
+
+    NewButton button_add{
+        {11 * 8, 4 * 16, 4 * 8, 2 * 16},
+        "",
+        &bitmap_icon_new_file,
+        Color::orange()};
+
+    NewButton button_delete{
+        {15 * 8, 4 * 16, 4 * 8, 2 * 16},
+        "",
+        &bitmap_icon_delete,
+        Color::orange()};
+
+    NewButton button_open{
+        {20 * 8, 4 * 16, 4 * 8, 2 * 16},
+        "",
+        &bitmap_icon_load,
+        Color::dark_blue()};
+
+    NewButton button_save{
+        {24 * 8, 4 * 16, 4 * 8, 2 * 16},
+        "",
+        &bitmap_icon_save,
+        Color::dark_blue()};
+
+    spectrum::WaterfallView waterfall{};
 
     MessageHandlerRegistration message_handler_replay_thread_error{
         Message::ID::ReplayThreadDone,

firmware/application/apps/ui_pocsag_tx.cpp

@@ -80,8 +80,7 @@ bool POCSAGTXView::start_tx() {
     progressbar.set_max(total_frames);
 
     transmitter_model.set_rf_amp(true);
-    transmitter_model.set_lna(40);
-    transmitter_model.set_vga(40);
+    transmitter_model.set_tx_gain(40);
     transmitter_model.enable();
 
     uint8_t* data_ptr = shared_memory.bb_data.data;

firmware/application/apps/ui_recon.cpp

@@ -23,41 +23,84 @@
 
 #include "ui_recon.hpp"
 #include "ui_fileman.hpp"
+#include "capture_app.hpp"
 #include "file.hpp"
+#include "tone_key.hpp"
 
 using namespace portapack;
+using namespace tonekey;
 using portapack::memory::map::backup_ram;
 
 namespace ui {
 
+bool ReconView::current_is_valid() {
+    return (unsigned)current_index < frequency_list.size();
+}
+
+freqman_entry& ReconView::current_entry() {
+    return *frequency_list[current_index];
+}
+
 void ReconView::set_loop_config(bool v) {
     continuous = v;
     button_loop_config.set_style(v ? &Styles::green : &Styles::white);
     persistent_memory::set_recon_continuous(continuous);
 }
 
-void ReconView::clear_freqlist_for_ui_action() {
-    audio::output::stop();
-    // flag to detect and reload frequency_list
-    freqlist_cleared_for_ui_action = true;
-    // if in manual mode, there is enough memory to load freqman files, else we have to unload/reload
-    if (!manual_mode) {
-        // clear and shrink_to_fit are not enough to really start with a new, clean, empty vector
-        // swap is the only way to achieve a perfect memory liberation
-        std::vector<freqman_entry>().swap(frequency_list);
-    } else {
-        frequency_list.shrink_to_fit();
+void ReconView::recon_stop_recording() {
+    if (is_recording) {
+        if (field_mode.selected_index_value() == SPEC_MODULATION)
+            button_audio_app.set_text("RAW");
+        else
+            button_audio_app.set_text("AUDIO");
+        button_audio_app.set_style(&Styles::white);
+        record_view->stop();
+        button_config.set_style(&Styles::white);  // disable config while recording as it's causing an IO error pop up at exit
+        is_recording = false;
     }
 }
 
+void ReconView::clear_freqlist_for_ui_action() {
+    recon_stop_recording();
+    if (field_mode.selected_index_value() != SPEC_MODULATION)
+        audio::output::stop();
+    // flag to detect and reload frequency_list
+    if (!manual_mode) {
+        // Clear doesn't actually free, re-assign so destructor runs on previous instance.
+        frequency_list = freqman_db{};
+    } else
+        frequency_list.shrink_to_fit();
+    freqlist_cleared_for_ui_action = true;
+}
+
 void ReconView::reset_indexes() {
-    last_entry.modulation = -1;
-    last_entry.bandwidth = -1;
-    last_entry.step = -1;
-    description = "...no description...";
+    last_entry.modulation = freqman_invalid_index;
+    last_entry.bandwidth = freqman_invalid_index;
+    last_entry.step = freqman_invalid_index;
     current_index = 0;
 }
 
+void ReconView::update_description() {
+    if (frequency_list.empty() || current_entry().description.empty()) {
+        description = "...no description...";
+        return;
+    } else {
+        switch (current_entry().type) {
+            case freqman_type::Range:
+                description = "R: ";
+                break;
+            case freqman_type::HamRadio:
+                description = "H: ";
+                break;
+            default:
+                description = "S: ";
+        }
+        description += current_entry().description;
+    }
+
+    desc_cycle.set(description);
+}
+
 void ReconView::colorize_waits() {
     // colorize wait on match
     if (wait == 0) {
@@ -84,18 +127,18 @@ void ReconView::colorize_waits() {
 bool ReconView::recon_save_freq(const std::string& freq_file_path, size_t freq_index, bool warn_if_exists) {
     File recon_file;
 
-    if (frequency_list.size() == 0 || (frequency_list.size() && current_index > (int32_t)frequency_list.size()))
+    if (frequency_list.size() == 0 || !current_is_valid())
         return false;
 
-    freqman_entry entry = frequency_list[freq_index];
+    freqman_entry entry = *frequency_list[freq_index];  // Makes a copy.
     entry.frequency_a = freq;
     entry.frequency_b = 0;
     entry.modulation = last_entry.modulation;
     entry.bandwidth = last_entry.bandwidth;
-    entry.type = SINGLE;
+    entry.type = freqman_type::Single;
 
-    std::string frequency_to_add;
-    get_freq_string(entry, frequency_to_add);
+    // TODO: Use FreqmanDB
+    auto frequency_to_add = to_freqman_string(entry);
 
     auto result = recon_file.open(freq_file_path);  // First recon if freq is already in txt
     if (!result.is_valid()) {
@@ -162,7 +205,7 @@ bool ReconView::recon_load_config_from_sd() {
             pos = line_start;
             while ((line_end = strstr(line_start, "\x0A"))) {
                 length = line_end - line_start - 1;
-                params[it] = string(pos, length);
+                params[it] = std::string(pos, length);
                 it++;
                 line_start = line_end + 1;
                 pos = line_start;
@@ -234,8 +277,8 @@ bool ReconView::recon_save_config_to_sd() {
 
     make_new_directory(u"SETTINGS");
 
-    auto result = settings_file.create(RECON_CFG_FILE);
-    if (result.is_valid())
+    auto error = settings_file.create(RECON_CFG_FILE);
+    if (error)
         return false;
     settings_file.write_line(input_file);
     settings_file.write_line(output_file);
@@ -248,7 +291,8 @@ bool ReconView::recon_save_config_to_sd() {
 }
 
 void ReconView::audio_output_start() {
-    audio::output::start();
+    if (field_mode.selected_index_value() != SPEC_MODULATION)
+        audio::output::start();
     receiver_model.set_headphone_volume(receiver_model.headphone_volume());  // WM8731 hack.
 }
 
@@ -281,10 +325,6 @@ void ReconView::recon_redraw() {
         } else if (freq_lock >= recon_lock_nb_match) {
             big_display.set_style(&Styles::green);
             button_pause.set_text("<UNLOCK>");
-            // FREQ IS STRONG: GREEN and recon will pause when on_statistics_update()
-            if ((!scanner_mode) && autosave && frequency_list.size() > 0) {
-                recon_save_freq(freq_file_path, current_index, false);
-            }
         }
     }
     if (last_db != db || last_list_size != frequency_list.size()) {
@@ -300,53 +340,38 @@ void ReconView::handle_retune() {
         receiver_model.set_target_frequency(freq);  // Retune
     }
     if (frequency_list.size() > 0) {
-        if (last_entry.modulation != frequency_list[current_index].modulation && frequency_list[current_index].modulation >= 0) {
-            last_entry.modulation = frequency_list[current_index].modulation;
-            field_mode.set_selected_index(frequency_list[current_index].modulation);
-            last_entry.bandwidth = -1;
+        if (last_entry.modulation != current_entry().modulation && is_valid(current_entry().modulation)) {
+            last_entry.modulation = current_entry().modulation;
+            field_mode.set_selected_index(current_entry().modulation);
+            last_entry.bandwidth = freqman_invalid_index;
         }
         // Set bandwidth if any
-        if (last_entry.bandwidth != frequency_list[current_index].bandwidth && frequency_list[current_index].bandwidth >= 0) {
-            last_entry.bandwidth = frequency_list[current_index].bandwidth;
-            field_bw.set_selected_index(frequency_list[current_index].bandwidth);
+        if (last_entry.bandwidth != current_entry().bandwidth && is_valid(current_entry().bandwidth)) {
+            last_entry.bandwidth = current_entry().bandwidth;
+            field_bw.set_selected_index(current_entry().bandwidth);
         }
-        if (last_entry.step != frequency_list[current_index].step && frequency_list[current_index].step >= 0) {
-            last_entry.step = frequency_list[current_index].step;
+        if (last_entry.step != current_entry().step && is_valid(current_entry().step)) {
+            last_entry.step = current_entry().step;
             step = freqman_entry_get_step_value(last_entry.step);
             step_mode.set_selected_index(step);
         }
         if (last_index != current_index) {
             last_index = current_index;
-            if ((int32_t)frequency_list.size() && current_index < (int32_t)frequency_list.size() && frequency_list[current_index].type == RANGE) {
+            if (frequency_list.size() && current_is_valid() && current_entry().type == freqman_type::Range) {
                 if (update_ranges && !manual_mode) {
-                    button_manual_start.set_text(to_string_short_freq(frequency_list[current_index].frequency_a));
-                    frequency_range.min = frequency_list[current_index].frequency_a;
-                    if (frequency_list[current_index].frequency_b != 0) {
-                        button_manual_end.set_text(to_string_short_freq(frequency_list[current_index].frequency_b));
-                        frequency_range.max = frequency_list[current_index].frequency_b;
+                    button_manual_start.set_text(to_string_short_freq(current_entry().frequency_a));
+                    frequency_range.min = current_entry().frequency_a;
+                    if (current_entry().frequency_b != 0) {
+                        button_manual_end.set_text(to_string_short_freq(current_entry().frequency_b));
+                        frequency_range.max = current_entry().frequency_b;
                     } else {
-                        button_manual_end.set_text(to_string_short_freq(frequency_list[current_index].frequency_a));
-                        frequency_range.max = frequency_list[current_index].frequency_a;
+                        button_manual_end.set_text(to_string_short_freq(current_entry().frequency_a));
+                        frequency_range.max = current_entry().frequency_a;
                     }
                 }
             }
             text_cycle.set_text(to_string_dec_uint(current_index + 1, 3));
-            if (frequency_list[current_index].description.size() > 0) {
-                switch (frequency_list[current_index].type) {
-                    case RANGE:
-                        desc_cycle.set("R: " + frequency_list[current_index].description);  // Show new description
-                        break;
-                    case HAMRADIO:
-                        desc_cycle.set("H: " + frequency_list[current_index].description);  // Show new description
-                        break;
-                    default:
-                    case SINGLE:
-                        desc_cycle.set("S: " + frequency_list[current_index].description);  // Show new description
-                        break;
-                }
-            } else {
-                desc_cycle.set("...no description...");  // Show new description
-            }
+            update_description();
         }
     }
 }
@@ -356,16 +381,20 @@ void ReconView::focus() {
 }
 
 ReconView::~ReconView() {
-    // Save recon config.
+    recon_stop_recording();
     recon_save_config_to_sd();
-
-    audio::output::stop();
+    if (field_mode.selected_index_value() != SPEC_MODULATION)
+        audio::output::stop();
     receiver_model.disable();
     baseband::shutdown();
 }
 
 ReconView::ReconView(NavigationView& nav)
     : nav_{nav} {
+    chrono_start = chTimeNow();
+    record_view = std::make_unique<RecordView>(Rect{0, 0, 30 * 8, 1 * 16},
+                                               u"AUTO_AUDIO_", u"AUDIO",
+                                               RecordView::FileType::WAV, 4096, 4);
     add_children({&labels,
                   &field_lna,
                   &field_vga,
@@ -401,7 +430,14 @@ ReconView::ReconView(NavigationView& nav)
                   &button_dir,
                   &button_restart,
                   &button_mic_app,
-                  &button_remove});
+                  &button_remove,
+                  record_view.get()});
+
+    record_view->hidden(true);
+    record_view->set_filename_date_frequency(true);
+    record_view->on_error = [&nav](std::string message) {
+        nav.display_modal("Error", message);
+    };
 
     def_step = 0;
     // HELPER: Pre-setting a manual range, based on stored frequency
@@ -426,6 +462,7 @@ ReconView::ReconView(NavigationView& nav)
     load_ranges = persistent_memory::recon_load_ranges();
     load_hamradios = persistent_memory::recon_load_hamradios();
     update_ranges = persistent_memory::recon_update_ranges_when_recon();
+    auto_record_locked = persistent_memory::recon_auto_record_locked();
 
     button_manual_start.on_select = [this, &nav](ButtonWithEncoder& button) {
         clear_freqlist_for_ui_action();
@@ -530,8 +567,12 @@ ReconView::ReconView(NavigationView& nav)
     };
 
     button_audio_app.on_select = [this](Button&) {
-        nav_.pop();
-        nav_.push<AnalogAudioView>();
+        auto settings = receiver_model.settings();
+        settings.frequency_step = step_mode.selected_index_value();
+        if (field_mode.selected_index_value() == SPEC_MODULATION)
+            nav_.replace<CaptureAppView>();
+        else
+            nav_.replace<AnalogAudioView>(settings);
     };
 
     button_loop_config.on_select = [this](Button&) {
@@ -549,23 +590,24 @@ ReconView::ReconView(NavigationView& nav)
     // TODO: *BUG* Both transmitter_model and receiver_model share the same pmem setting for target_frequency.
     button_mic_app.on_select = [this](Button&) {
         if (frequency_list.size() > 0 && current_index >= 0 && (unsigned)current_index < frequency_list.size()) {
-            if (frequency_list[current_index].type == HAMRADIO) {
-                // if it's a HAMRADIO entry, then frequency_a is the freq at which the repeater reveive, so we have to set it in transmit in mic app
-                transmitter_model.set_target_frequency(frequency_list[current_index].frequency_a);
-                // if it's a HAMRADIO entry, then frequency_b is the freq at which the repeater transmit, so we have to set it in receive in mic app
-                receiver_model.set_target_frequency(frequency_list[current_index].frequency_b);
+            if (current_entry().type == freqman_type::HamRadio) {
+                // if it's a HamRadio entry, then frequency_a is the freq at which the repeater receives, so we have to set it in transmit in mic app
+                transmitter_model.set_target_frequency(current_entry().frequency_a);
+                // if it's a HamRadio entry, then frequency_b is the freq at which the repeater transmits, so we have to set it in receive in mic app
+                receiver_model.set_target_frequency(current_entry().frequency_b);
             } else {
                 // it's single or range so we us actual tuned frequency
                 transmitter_model.set_target_frequency(freq);
                 receiver_model.set_target_frequency(freq);
             }
         }
-        // there is no way yet to set modulation and bandwidth from Recon to MicApp
-        nav_.pop();
-        nav_.push<MicTXView>();
+
+        // MicTX wants Modulation and Bandwidth overrides, but that's only stored on the RX model.
+        nav_.replace<MicTXView>(receiver_model.settings());
     };
 
     button_remove.on_select = [this](ButtonWithEncoder&) {
+        // TODO: Use FreqmanDB
         if (frequency_list.size() > 0) {
             if (!manual_mode) {
                 // scanner or recon (!scanner) mode
@@ -578,23 +620,8 @@ ReconView::ReconView(NavigationView& nav)
                     current_index = frequency_list.size() - 1;
                 }
                 if (frequency_list.size() > 0) {
-                    if (frequency_list[current_index].description.size() > 0) {
-                        switch (frequency_list[current_index].type) {
-                            case RANGE:
-                                desc_cycle.set("R: " + frequency_list[current_index].description);
-                                break;
-                            case HAMRADIO:
-                                desc_cycle.set("H: " + frequency_list[current_index].description);
-                                break;
-                            default:
-                            case SINGLE:
-                                desc_cycle.set("S: " + frequency_list[current_index].description);
-                                break;
-                        }
-                    } else {
-                        desc_cycle.set("...no description...");
-                    }
                     text_cycle.set_text(to_string_dec_uint(current_index + 1, 3));
+                    update_description();
                 }
                 // also remove from output file if in scanner mode
                 if (scanner_mode) {
@@ -603,8 +630,7 @@ ReconView::ReconView(NavigationView& nav)
                     auto result = freqman_file.create(freq_file_path);
                     if (!result.is_valid()) {
                         for (size_t n = 0; n < frequency_list.size(); n++) {
-                            std::string line;
-                            get_freq_string(frequency_list[n], line);
+                            auto line = to_freqman_string(*frequency_list[n]);
                             freqman_file.write_line(line);
                         }
                     }
@@ -614,16 +640,15 @@ ReconView::ReconView(NavigationView& nav)
                 File recon_file{};
                 File tmp_recon_file{};
                 std::string tmp_freq_file_path{freq_file_path + ".TMP"};
-                std::string frequency_to_add{};
 
-                freqman_entry entry = frequency_list[current_index];
+                freqman_entry entry = current_entry();
                 entry.frequency_a = freq;
                 entry.frequency_b = 0;
                 entry.modulation = last_entry.modulation;
                 entry.bandwidth = last_entry.bandwidth;
-                entry.type = SINGLE;
+                entry.type = freqman_type::Single;
 
-                get_freq_string(entry, frequency_to_add);
+                auto frequency_to_add = to_freqman_string(entry);
 
                 delete_file(tmp_freq_file_path);
                 auto result = tmp_recon_file.create(tmp_freq_file_path);  // First recon if freq is already in txt
@@ -656,7 +681,7 @@ ReconView::ReconView(NavigationView& nav)
                     }
                 }
             }
-            receiver_model.set_target_frequency(frequency_list[current_index].frequency_a);  // retune
+            receiver_model.set_target_frequency(current_entry().frequency_a);  // retune
         }
         if (frequency_list.size() == 0) {
             text_cycle.set_text(" ");
@@ -682,27 +707,25 @@ ReconView::ReconView(NavigationView& nav)
         } else if (frequency_range.min > frequency_range.max) {
             nav_.display_modal("Error", "END freq\nis lower than START");
         } else {
-            audio::output::stop();
+            if (field_mode.selected_index_value() != SPEC_MODULATION)
+                audio::output::stop();
 
-            // clear and shrink_to_fit are not enough to really start with a new, clean, empty vector
-            // swap is the only way to achieve a perfect memory liberation
-            std::vector<freqman_entry>().swap(frequency_list);
+            // Clear doesn't actually free, re-assign so destructor runs on previous instance.
+            frequency_list = freqman_db{};
+            current_index = 0;
+            frequency_list.push_back(std::make_unique<freqman_entry>());
 
-            freqman_entry manual_freq_entry;
-
-            def_step = step_mode.selected_index();  // max range val
-
-            manual_freq_entry.type = RANGE;
-            manual_freq_entry.description =
-                to_string_short_freq(frequency_range.min).erase(0, 1) + ">" + to_string_short_freq(frequency_range.max).erase(0, 1) + " S:"  // current Manual range
-                + freqman_entry_get_step_string_short(def_step);                                                                             // euquiq: lame kludge to reduce spacing in step freq
-            manual_freq_entry.frequency_a = frequency_range.min;                                                                             // min range val
-            manual_freq_entry.frequency_b = frequency_range.max;                                                                             // max range val
-            manual_freq_entry.modulation = -1;
-            manual_freq_entry.bandwidth = -1;
-            manual_freq_entry.step = def_step;
-
-            frequency_list.push_back(manual_freq_entry);
+            def_step = step_mode.selected_index();
+            current_entry().type = freqman_type::Range;
+            current_entry().description =
+                to_string_short_freq(frequency_range.min).erase(0, 1) + ">" +  // euquiq: lame kludge to reduce spacing in step freq
+                to_string_short_freq(frequency_range.max).erase(0, 1) + " S:" +
+                freqman_entry_get_step_string_short(def_step);
+            current_entry().frequency_a = frequency_range.min;
+            current_entry().frequency_b = frequency_range.max;
+            current_entry().modulation = freqman_invalid_index;
+            current_entry().bandwidth = freqman_invalid_index;
+            current_entry().step = def_step;
 
             big_display.set_style(&Styles::white);  // Back to white color
 
@@ -712,18 +735,17 @@ ReconView::ReconView(NavigationView& nav)
             text_cycle.set_text("1");
             text_max.set("/1");
             button_scanner_mode.set_style(&Styles::white);
-            button_scanner_mode.set_text("MSEARCH");
+            button_scanner_mode.set_text("MANUAL");
             file_name.set_style(&Styles::white);
             file_name.set("MANUAL RANGE RECON");
             desc_cycle.set_style(&Styles::white);
 
-            last_entry.modulation = -1;
-            last_entry.bandwidth = -1;
-            last_entry.step = -1;
+            last_entry.modulation = freqman_invalid_index;
+            last_entry.bandwidth = freqman_invalid_index;
+            last_entry.step = freqman_invalid_index;
             last_index = -1;
 
-            current_index = 0;
-            freq = manual_freq_entry.frequency_a;
+            freq = current_entry().frequency_a;
             handle_retune();
             recon_redraw();
             recon_resume();
@@ -757,15 +779,18 @@ ReconView::ReconView(NavigationView& nav)
         if (scanner_mode) {
             file_name.set_style(&Styles::red);
             button_scanner_mode.set_style(&Styles::red);
-            button_scanner_mode.set_text("SCANNER");
+            button_scanner_mode.set_text("SCAN");
         } else {
             file_name.set_style(&Styles::blue);
             button_scanner_mode.set_style(&Styles::blue);
             button_scanner_mode.set_text("RECON");
         }
+        if (frequency_list.size() > FREQMAN_MAX_PER_FILE) {
+            file_name.set_style(&Styles::yellow);
+        }
     };
 
-    button_add.on_select = [this](ButtonWithEncoder&) {  // frequency_list[current_index]
+    button_add.on_select = [this](ButtonWithEncoder&) {
         if (!scanner_mode) {
             recon_save_freq(freq_file_path, current_index, true);
         }
@@ -786,7 +811,7 @@ ReconView::ReconView(NavigationView& nav)
         } else {
             scanner_mode = true;
             button_scanner_mode.set_style(&Styles::red);
-            button_scanner_mode.set_text("SCANNER");
+            button_scanner_mode.set_text("SCAN");
             button_scanner_mode.set_text("REMOVE");
         }
         frequency_file_load(true);
@@ -798,14 +823,16 @@ ReconView::ReconView(NavigationView& nav)
     };
 
     button_config.on_select = [this, &nav](Button&) {
+        if (is_recording)  // disabling config while recording
+            return;
         clear_freqlist_for_ui_action();
-
+        freq_lock = 0;
+        timer = 0;
         auto open_view = nav.push<ReconSetupView>(input_file, output_file);
         open_view->on_changed = [this](std::vector<std::string> result) {
-            freqlist_cleared_for_ui_action = false;
             input_file = result[0];
             output_file = result[1];
-            freq_file_path = "/FREQMAN/" + output_file + ".TXT";
+            freq_file_path = get_freqman_path(output_file).string();
             recon_save_config_to_sd();
 
             autosave = persistent_memory::recon_autosave_freqs();
@@ -815,8 +842,10 @@ ReconView::ReconView(NavigationView& nav)
             load_ranges = persistent_memory::recon_load_ranges();
             load_hamradios = persistent_memory::recon_load_hamradios();
             update_ranges = persistent_memory::recon_update_ranges_when_recon();
+            auto_record_locked = persistent_memory::recon_auto_record_locked();
 
             frequency_file_load(false);
+            freqlist_cleared_for_ui_action = false;
 
             if (autostart) {
                 recon_resume();
@@ -833,6 +862,9 @@ ReconView::ReconView(NavigationView& nav)
 
     field_wait.on_change = [this](int32_t v) {
         wait = v;
+        // replacing -100 by 200 else it's freezing the device
+        if (wait == -100)
+            wait = -200;
         colorize_waits();
     };
 
@@ -859,7 +891,7 @@ ReconView::ReconView(NavigationView& nav)
 
     // Loading input and output file from settings
     recon_load_config_from_sd();
-    freq_file_path = "/FREQMAN/" + output_file + ".TXT";
+    freq_file_path = get_freqman_path(output_file).string();
 
     field_recon_match_mode.set_selected_index(recon_match_mode);
     field_squelch.set_value(squelch);
@@ -891,113 +923,100 @@ ReconView::ReconView(NavigationView& nav)
 
 void ReconView::frequency_file_load(bool stop_all_before) {
     (void)(stop_all_before);
-    audio::output::stop();
+    if (field_mode.selected_index_value() != SPEC_MODULATION)
+        audio::output::stop();
 
     def_step = step_mode.selected_index();  // use def_step from manual selector
-    // clear and shrink_to_fit are not enough to really start with a new, clean, empty vector
-    // swap is the only way to achieve a perfect memory liberation
-    std::vector<freqman_entry>().swap(frequency_list);  // clear the existing frequency list (expected behavior)
-    std::string file_input = input_file;                // default recon mode
+    std::string file_input = input_file;    // default recon mode
     if (scanner_mode) {
         file_input = output_file;
         file_name.set_style(&Styles::red);
         button_scanner_mode.set_style(&Styles::red);
-        button_scanner_mode.set_text("SCANNER");
+        desc_cycle.set_style(&Styles::red);
+        button_scanner_mode.set_text("SCAN");
     } else {
         file_name.set_style(&Styles::blue);
         button_scanner_mode.set_style(&Styles::blue);
+        desc_cycle.set_style(&Styles::blue);
         button_scanner_mode.set_text("RECON");
     }
-    desc_cycle.set_style(&Styles::white);
-    if (!load_freqman_file_ex(file_input, frequency_list, load_freqs, load_ranges, load_hamradios, RECON_FREQMAN_MAX_PER_FILE)) {
+    freqman_load_options options{
+        .load_freqs = load_freqs,
+        .load_ranges = load_ranges,
+        .load_hamradios = load_hamradios};
+    if (!load_freqman_file(file_input, frequency_list, options)) {
         file_name.set_style(&Styles::red);
-        desc_cycle.set_style(&Styles::red);
         desc_cycle.set(" NO " + file_input + ".TXT FILE ...");
         file_name.set("=> NO DATA");
     } else {
         file_name.set(file_input + "=>" + output_file);
         if (frequency_list.size() == 0) {
             file_name.set_style(&Styles::red);
-            desc_cycle.set_style(&Styles::red);
             desc_cycle.set("/0 no entries in list");
             file_name.set("BadOrEmpty " + file_input);
         } else {
-            if (frequency_list.size() > RECON_FREQMAN_MAX_PER_FILE) {
+            if (frequency_list.size() > FREQMAN_MAX_PER_FILE) {
                 file_name.set_style(&Styles::yellow);
-                desc_cycle.set_style(&Styles::yellow);
             }
         }
     }
 
-    if (frequency_list[0].step >= 0)
-        step = freqman_entry_get_step_value(frequency_list[0].step);
-    else
-        step = freqman_entry_get_step_value(def_step);
-
-    switch (frequency_list[0].type) {
-        case SINGLE:
-            freq = frequency_list[0].frequency_a;
-            break;
-        case RANGE:
-            minfreq = frequency_list[0].frequency_a;
-            maxfreq = frequency_list[0].frequency_b;
-            if (fwd) {
-                freq = minfreq;
-            } else {
-                freq = maxfreq;
-            }
-            if (frequency_list[0].step >= 0)
-                step = freqman_entry_get_step_value(frequency_list[0].step);
-            break;
-        case HAMRADIO:
-            minfreq = frequency_list[0].frequency_a;
-            maxfreq = frequency_list[0].frequency_b;
-            if (fwd) {
-                freq = minfreq;
-            } else {
-                freq = maxfreq;
-            }
-            break;
-        default:
-            break;
+    if (frequency_list.empty()) {
+        text_cycle.set_text(" ");
+        return;  // Can't really do much.
     }
+
     reset_indexes();
+    step = freqman_entry_get_step_value(
+        is_valid(current_entry().step) ? current_entry().step : def_step);
+
+    if (current_entry().type == freqman_type::Single) {
+        freq = current_entry().frequency_a;
+    } else if (current_entry().type != freqman_type::Unknown) {
+        minfreq = current_entry().frequency_a;
+        maxfreq = current_entry().frequency_b;
+        freq = fwd ? minfreq : maxfreq;
+    }
+
     step_mode.set_selected_index(def_step);  // Impose the default step into the manual step selector
     receiver_model.enable();
     receiver_model.set_squelch_level(0);
-    if (frequency_list.size() != 0) {
-        switch (frequency_list[current_index].type) {
-            case RANGE:
-                description = "R: " + frequency_list[current_index].description;
-                break;
-            case HAMRADIO:
-                description = "H: " + frequency_list[current_index].description;
-                break;
-            default:
-            case SINGLE:
-                description = "S: " + frequency_list[current_index].description;
-                break;
+    text_cycle.set_text(to_string_dec_uint(current_index + 1, 3));
+    if (update_ranges && !manual_mode) {
+        button_manual_start.set_text(to_string_short_freq(current_entry().frequency_a));
+        frequency_range.min = current_entry().frequency_a;
+        if (current_entry().frequency_b != 0) {
+            button_manual_end.set_text(to_string_short_freq(current_entry().frequency_b));
+            frequency_range.max = current_entry().frequency_b;
+        } else {
+            button_manual_end.set_text(to_string_short_freq(current_entry().frequency_a));
+            frequency_range.max = current_entry().frequency_a;
         }
-        text_cycle.set_text(to_string_dec_uint(current_index + 1, 3));
-        if (update_ranges && !manual_mode) {
-            button_manual_start.set_text(to_string_short_freq(frequency_list[current_index].frequency_a));
-            frequency_range.min = frequency_list[current_index].frequency_a;
-            if (frequency_list[current_index].frequency_b != 0) {
-                button_manual_end.set_text(to_string_short_freq(frequency_list[current_index].frequency_b));
-                frequency_range.max = frequency_list[current_index].frequency_b;
-            } else {
-                button_manual_end.set_text(to_string_short_freq(frequency_list[current_index].frequency_a));
-                frequency_range.max = frequency_list[current_index].frequency_a;
-            }
-        }
-    } else {
-        text_cycle.set_text(" ");
     }
-    desc_cycle.set(description);
+    update_description();
     handle_retune();
 }
 
 void ReconView::on_statistics_update(const ChannelStatistics& statistics) {
+    systime_t time_interval = 100;
+    uint32_t local_recon_lock_duration = recon_lock_duration;
+
+    chrono_end = chTimeNow();
+    if (field_mode.selected_index_value() == SPEC_MODULATION) {
+        time_interval = chrono_end - chrono_start;
+        // capping here to avoid double check a frequency because time_interval is more than exactly 100 by a few units
+        // this is because we are making a measurement and not using a fixed value
+        if (time_interval > 100)
+            time_interval = 100;
+        if (field_lock_wait.value() == 0) {
+            if (time_interval <= 1)             // capping here to avoid freeze because too quick
+                local_recon_lock_duration = 2;  // minimum working tested value
+            else
+                local_recon_lock_duration = time_interval;
+        }
+    }
+    chrono_start = chrono_end;
+
     // hack to reload the list if it was cleared by going into CONFIG
     if (freqlist_cleared_for_ui_action) {
         if (!manual_mode) {
@@ -1016,7 +1035,7 @@ void ReconView::on_statistics_update(const ChannelStatistics& statistics) {
             status = 0;
             continuous_lock = false;
             freq_lock = 0;
-            timer = recon_lock_duration;
+            timer = local_recon_lock_duration;
             big_display.set_style(&Styles::white);
         }
         if (freq_lock < recon_lock_nb_match)  // LOCKING
@@ -1024,7 +1043,9 @@ void ReconView::on_statistics_update(const ChannelStatistics& statistics) {
             if (status != 1) {
                 status = 1;
                 if (wait != 0) {
-                    audio::output::stop();
+                    recon_stop_recording();
+                    if (field_mode.selected_index_value() != SPEC_MODULATION)
+                        audio::output::stop();
                 }
             }
             if (db > squelch)  // MATCHING LEVEL
@@ -1046,8 +1067,28 @@ void ReconView::on_statistics_update(const ChannelStatistics& statistics) {
             if (status != 2) {
                 continuous_lock = false;
                 status = 2;
+                // FREQ IS STRONG: GREEN and recon will pause when on_statistics_update()
+                if ((!scanner_mode) && autosave && frequency_list.size() > 0) {
+                    recon_save_freq(freq_file_path, current_index, false);
+                }
                 if (wait != 0) {
-                    audio_output_start();
+                    if (field_mode.selected_index_value() != SPEC_MODULATION)
+                        audio_output_start();
+                    // contents of a possible recon_start_recording(), but not yet since it's only called once
+                    if (auto_record_locked && !is_recording) {
+                        button_audio_app.set_style(&Styles::red);
+                        if (field_mode.selected_index_value() == SPEC_MODULATION)
+                            button_audio_app.set_text("RAW REC");
+                        else
+                            button_audio_app.set_text("WAV REC");
+                        record_view->start();
+                        button_config.set_style(&Styles::light_grey);  // disable config while recording as it's causing an IO error pop up at exit
+                        is_recording = true;
+                    }
+                    // FREQ IS STRONG: GREEN and recon will pause when on_statistics_update()
+                    if ((!scanner_mode) && autosave && frequency_list.size() > 0) {
+                        recon_save_freq(freq_file_path, current_index, false);
+                    }
                 }
                 if (wait >= 0) {
                     timer = wait;
@@ -1066,8 +1107,9 @@ void ReconView::on_statistics_update(const ChannelStatistics& statistics) {
         text_timer.set("TIMER: " + to_string_dec_int(timer));
     }
     if (timer) {
-        if (!continuous_lock || recon_match_mode == RECON_MATCH_SPARSE)
-            timer -= STATS_UPDATE_INTERVAL;
+        if (!continuous_lock || recon_match_mode == RECON_MATCH_SPARSE) {
+            timer -= time_interval;
+        }
         if (timer < 0) {
             timer = 0;
         }
@@ -1078,11 +1120,10 @@ void ReconView::on_statistics_update(const ChannelStatistics& statistics) {
             if (frequency_list.size() > 0) {
                 has_looped = false;
                 entry_has_changed = false;
-
                 if (recon || stepper != 0 || index_stepper != 0) {
                     if (index_stepper == 0) {
                         /* we are doing a range */
-                        if (frequency_list[current_index].type == RANGE) {
+                        if (current_entry().type == freqman_type::Range) {
                             if ((fwd && stepper == 0) || stepper > 0) {
                                 // forward
                                 freq += step;
@@ -1112,7 +1153,7 @@ void ReconView::on_statistics_update(const ChannelStatistics& statistics) {
                                     }
                                 }
                             }
-                        } else if (frequency_list[current_index].type == SINGLE) {
+                        } else if (current_entry().type == freqman_type::Single) {
                             if ((fwd && stepper == 0) || stepper > 0) {  // forward
                                 current_index++;
                                 entry_has_changed = true;
@@ -1131,7 +1172,7 @@ void ReconView::on_statistics_update(const ChannelStatistics& statistics) {
                                     current_index = frequency_list.size() - 1;
                                 }
                             }
-                        } else if (frequency_list[current_index].type == HAMRADIO) {
+                        } else if (current_entry().type == freqman_type::HamRadio) {
                             if ((fwd && stepper == 0) || stepper > 0) {  // forward
                                 if ((minfreq != maxfreq) && freq == minfreq) {
                                     freq = maxfreq;
@@ -1178,28 +1219,29 @@ void ReconView::on_statistics_update(const ChannelStatistics& statistics) {
 
                         entry_has_changed = true;
 
-                        if (!recon)  // for some motive, audio output gets stopped.
+                        // for some motive, audio output gets stopped.
+                        if (!recon && field_mode.selected_index_value() != SPEC_MODULATION)
                             audio_output_start();
                     }
                     // reload entry if changed
                     if (entry_has_changed) {
                         timer = 0;
-                        switch (frequency_list[current_index].type) {
-                            case SINGLE:
-                                freq = frequency_list[current_index].frequency_a;
+                        switch (current_entry().type) {
+                            case freqman_type::Single:
+                                freq = current_entry().frequency_a;
                                 break;
-                            case RANGE:
-                                minfreq = frequency_list[current_index].frequency_a;
-                                maxfreq = frequency_list[current_index].frequency_b;
+                            case freqman_type::Range:
+                                minfreq = current_entry().frequency_a;
+                                maxfreq = current_entry().frequency_b;
                                 if ((fwd && !stepper && !index_stepper) || stepper > 0 || index_stepper > 0) {
                                     freq = minfreq;
                                 } else if ((!fwd && !stepper && !index_stepper) || stepper < 0 || index_stepper < 0) {
                                     freq = maxfreq;
                                 }
                                 break;
-                            case HAMRADIO:
-                                minfreq = frequency_list[current_index].frequency_a;
-                                maxfreq = frequency_list[current_index].frequency_b;
+                            case freqman_type::HamRadio:
+                                minfreq = current_entry().frequency_a;
+                                maxfreq = current_entry().frequency_b;
                                 if ((fwd && !stepper && !index_stepper) || stepper > 0 || index_stepper > 0) {
                                     freq = minfreq;
                                 } else if ((!fwd && !stepper && !index_stepper) || stepper < 0 || index_stepper < 0) {
@@ -1230,7 +1272,8 @@ void ReconView::recon_pause() {
     continuous_lock = false;
     recon = false;
 
-    audio_output_start();
+    if (field_mode.selected_index_value() != SPEC_MODULATION)
+        audio_output_start();
 
     big_display.set_style(&Styles::white);
     button_pause.set_text("<RESUME>");  // PAUSED, show resume
@@ -1242,7 +1285,8 @@ void ReconView::recon_resume() {
     continuous_lock = false;
     recon = true;
 
-    audio::output::stop();
+    if (field_mode.selected_index_value() != SPEC_MODULATION)
+        audio::output::stop();
 
     big_display.set_style(&Styles::white);
     button_pause.set_text("<PAUSE>");
@@ -1283,10 +1327,28 @@ void ReconView::on_stepper_delta(int32_t v) {
 size_t ReconView::change_mode(freqman_index_t new_mod) {
     field_mode.on_change = [this](size_t, OptionsField::value_t) {};
     field_bw.on_change = [this](size_t, OptionsField::value_t) {};
-
+    recon_stop_recording();
+    remove_child(record_view.get());
+    record_view.reset();
+    if (new_mod == SPEC_MODULATION) {
+        audio::output::stop();
+        record_view = std::make_unique<RecordView>(Rect{0, 0, 30 * 8, 1 * 16},
+                                                   u"AUTO_RAW_", u"CAPTURES",
+                                                   RecordView::FileType::RawS16, 16384, 3);
+    } else {
+        record_view = std::make_unique<RecordView>(Rect{0, 0, 30 * 8, 1 * 16},
+                                                   u"AUTO_AUDIO_", u"AUDIO",
+                                                   RecordView::FileType::WAV, 4096, 4);
+    }
+    add_child(record_view.get());
+    record_view->hidden(true);
+    record_view->set_filename_date_frequency(true);
+    record_view->on_error = [this](std::string message) {
+        nav_.display_modal("Error", message);
+    };
     receiver_model.disable();
     baseband::shutdown();
-
+    size_t recording_sampling_rate = 0;
     switch (new_mod) {
         case AM_MODULATION:
             freqman_set_bandwidth_option(new_mod, field_bw);
@@ -1297,6 +1359,7 @@ size_t ReconView::change_mode(freqman_index_t new_mod) {
             receiver_model.set_am_configuration(field_bw.selected_index_value());
             field_bw.on_change = [this](size_t, OptionsField::value_t n) { receiver_model.set_am_configuration(n); };
             text_ctcss.set("        ");
+            recording_sampling_rate = 12000;
             break;
         case NFM_MODULATION:
             freqman_set_bandwidth_option(new_mod, field_bw);
@@ -1306,6 +1369,7 @@ size_t ReconView::change_mode(freqman_index_t new_mod) {
             receiver_model.set_modulation(ReceiverModel::Mode::NarrowbandFMAudio);
             receiver_model.set_nbfm_configuration(field_bw.selected_index_value());
             field_bw.on_change = [this](size_t, OptionsField::value_t n) { receiver_model.set_nbfm_configuration(n); };
+            recording_sampling_rate = 24000;
             break;
         case WFM_MODULATION:
             freqman_set_bandwidth_option(new_mod, field_bw);
@@ -1316,18 +1380,43 @@ size_t ReconView::change_mode(freqman_index_t new_mod) {
             receiver_model.set_wfm_configuration(field_bw.selected_index_value());
             field_bw.on_change = [this](size_t, OptionsField::value_t n) { receiver_model.set_wfm_configuration(n); };
             text_ctcss.set("        ");
+            recording_sampling_rate = 48000;
+            break;
+        case SPEC_MODULATION:
+            freqman_set_bandwidth_option(new_mod, field_bw);
+            // bw 200k (0) default
+            baseband::run_image(portapack::spi_flash::image_tag_capture);
+            receiver_model.set_modulation(ReceiverModel::Mode::Capture);
+            field_bw.set_by_value(0);
+            field_bw.on_change = [this](size_t, OptionsField::value_t sampling_rate) {
+                auto anti_alias_baseband_bandwidth_filter = filter_bandwidth_for_sampling_rate(sampling_rate);
+                record_view->set_sampling_rate(sampling_rate);
+                receiver_model.set_sampling_rate(sampling_rate);
+                receiver_model.set_baseband_bandwidth(anti_alias_baseband_bandwidth_filter);
+            };
+            text_ctcss.set("        ");
             break;
         default:
             break;
     }
+    if (new_mod != SPEC_MODULATION) {
+        button_audio_app.set_text("AUDIO");
+        record_view->set_sampling_rate(recording_sampling_rate);
+        // reset receiver model to fix bug when going from SPEC to audio, the sound is distorded
+        receiver_model.set_sampling_rate(3072000);
+        receiver_model.set_baseband_bandwidth(1750000);
+    } else {
+        button_audio_app.set_text("RAW");
+    }
+
     field_mode.set_selected_index(new_mod);
     field_mode.on_change = [this](size_t, OptionsField::value_t v) {
         if (v != -1) {
             change_mode(v);
         }
     };
-
-    if (!recon)                  // for some motive, audio output gets stopped.
+    // for some motive, audio output gets stopped.
+    if (!recon && field_mode.selected_index_value() != SPEC_MODULATION)
         audio::output::start();  // so if recon was stopped we resume audio
     receiver_model.enable();
 
@@ -1335,32 +1424,10 @@ size_t ReconView::change_mode(freqman_index_t new_mod) {
 }
 
 void ReconView::handle_coded_squelch(const uint32_t value) {
-    float diff{0.0};
-    float min_diff{(float)value};
-    size_t min_idx{0};
-    size_t c{0};
-
-    if (field_mode.selected_index() != NFM_MODULATION) {
+    if (field_mode.selected_index() == NFM_MODULATION)
+        text_ctcss.set(tone_key_string_by_value(value, text_ctcss.parent_rect().width() / 8));
+    else
         text_ctcss.set("        ");
-        return;
-    }
-
-    // Find nearest match
-    for (c = 0; c < tone_keys.size(); c++) {
-        diff = abs(((float)value / 100.0) - tone_keys[c].second);
-        if (diff < min_diff) {
-            min_idx = c;
-            min_diff = diff;
-        }
-    }
-
-    // Arbitrary confidence threshold
-    if (last_squelch_index < 0 || (unsigned)last_squelch_index != min_idx) {
-        last_squelch_index = min_idx;
-        if (min_diff < 40)
-            text_ctcss.set("T: " + tone_keys[min_idx].first);
-        else
-            text_ctcss.set("        ");
-    }
 }
+
 } /* namespace ui */

firmware/application/apps/ui_recon.hpp

@@ -45,7 +45,6 @@
 namespace ui {
 
 #define RECON_CFG_FILE "SETTINGS/recon.cfg"
-#define RECON_FREQMAN_MAX_PER_FILE 99  // maximum tested limit for load frequency from freqman to work
 
 class ReconView : public View {
    public:
@@ -68,6 +67,7 @@ class ReconView : public View {
     void set_loop_config(bool v);
     void clear_freqlist_for_ui_action();
     void reset_indexes();
+    void update_description();
     void audio_output_start();
     bool check_sd_card();
     size_t change_mode(freqman_index_t mod_type);
@@ -85,6 +85,12 @@ class ReconView : public View {
     bool recon_load_config_from_sd();
     bool recon_save_config_to_sd();
     bool recon_save_freq(const std::string& freq_file_path, size_t index, bool warn_if_exists);
+    // placeholder for possible void recon_start_recording();
+    void recon_stop_recording();
+
+    // Returns true if 'current_index' is in bounds of frequency_list.
+    bool current_is_valid();
+    freqman_entry& current_entry();
 
     jammer::jammer_range_t frequency_range{false, 0, MAX_UFREQ};  // perfect for manual recon task too...
     int32_t squelch{0};
@@ -109,6 +115,8 @@ class ReconView : public View {
     bool fwd{true};
     bool recon{true};
     bool user_pause{false};
+    bool auto_record_locked{false};
+    bool is_recording{false};
     uint32_t recon_lock_nb_match{3};
     uint32_t recon_lock_duration{RECON_MIN_LOCK_DURATION};
     uint32_t recon_match_mode{RECON_MATCH_CONTINUOUS};
@@ -119,10 +127,7 @@ class ReconView : public View {
     int32_t index_stepper{0};
     int64_t freq{0};
     uint32_t step{0};
-    freqman_index_t def_modulation{0};
-    freqman_index_t def_bandwidth{0};
     freqman_index_t def_step{0};
-    tone_index tone{0};
     freqman_entry last_entry{};
     bool entry_has_changed{false};
     uint32_t freq_lock{0};
@@ -139,16 +144,19 @@ class ReconView : public View {
     int8_t last_rssi_med{-127};
     int8_t last_rssi_max{-127};
     int32_t last_index{-1};
-    int32_t last_squelch_index{-1};
     int64_t last_freq{0};
     std::string freq_file_path{};
+    systime_t chrono_start{};
+    systime_t chrono_end{};
+
+    std::unique_ptr<RecordView> record_view{};
 
     Labels labels{
         {{0 * 8, 0 * 16}, "LNA:   VGA:   AMP:  VOL:     ", Color::light_grey()},
         {{3 * 8, 8 * 16}, "START       END", Color::light_grey()},
         {{0 * 8, (22 * 8)}, "                S:          ", Color::light_grey()},
         {{0 * 8, (24 * 8) + 4}, "NBLCKS:x      W,L:      ,     ", Color::light_grey()},
-        {{0 * 8, (26 * 8) + 4}, "MODE:    ,       SQUELCH:    ", Color::light_grey()}};
+        {{0 * 8, (26 * 8) + 4}, "MODE:     ,      SQUELCH:    ", Color::light_grey()}};
 
     LNAGainField field_lna{
         {4 * 8, 0 * 16}};
@@ -266,18 +274,18 @@ class ReconView : public View {
     NumberField field_lock_wait{
         {25 * 8, 24 * 8 + 4},
         4,
-        {RECON_MIN_LOCK_DURATION, RECON_MAX_LOCK_DURATION},
+        {0, RECON_MAX_LOCK_DURATION},
         STATS_UPDATE_INTERVAL,
         ' ',
     };
 
     OptionsField field_mode{
         {6 * 8, (26 * 8) + 4},
-        3,
+        4,
         {}};
 
     OptionsField field_bw{
-        {10 * 8, (26 * 8) + 4},
+        {11 * 8, (26 * 8) + 4},
         6,
         {}};
 

firmware/application/apps/ui_recon_settings.cpp

@@ -21,12 +21,13 @@
  * Boston, MA 02110-1301, USA.
  */
 
-#include "ui_recon_settings.hpp"
-#include "ui_navigation.hpp"
 #include "ui_fileman.hpp"
+#include "ui_navigation.hpp"
+#include "ui_recon_settings.hpp"
 #include "ui_textentry.hpp"
 
 #include "file.hpp"
+#include "freqman_db.hpp"
 #include "portapack.hpp"
 #include "portapack_persistent_memory.hpp"
 
@@ -55,11 +56,9 @@ ReconSetupViewMain::ReconSetupViewMain(NavigationView& nav, Rect parent_rect, st
 
     button_load_freqs.on_select = [this, &nav](Button&) {
         auto open_view = nav.push<FileLoadView>(".TXT");
+        open_view->push_dir(freqman_dir);
         open_view->on_changed = [this, &nav](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
-                                                                   // get the filename without txt extension so we can use load_freqman_file fcn
+            if (new_file_path.native().find(freqman_dir.native()) == 0) {
                 _input_file = new_file_path.stem().string();
                 text_input_file.set(_input_file);
             } else {
@@ -103,6 +102,7 @@ void ReconSetupViewMore::save() {
     persistent_memory::set_recon_load_ranges(checkbox_load_ranges.value());
     persistent_memory::set_recon_load_hamradios(checkbox_load_hamradios.value());
     persistent_memory::set_recon_update_ranges_when_recon(checkbox_update_ranges_when_recon.value());
+    persistent_memory::set_recon_auto_record_locked(checkbox_auto_record_locked.value());
 };
 
 void ReconSetupViewMain::focus() {
@@ -117,12 +117,14 @@ ReconSetupViewMore::ReconSetupViewMore(NavigationView& nav, Rect parent_rect)
     add_children({&checkbox_load_freqs,
                   &checkbox_load_ranges,
                   &checkbox_load_hamradios,
-                  &checkbox_update_ranges_when_recon});
+                  &checkbox_update_ranges_when_recon,
+                  &checkbox_auto_record_locked});
 
     checkbox_load_freqs.set_value(persistent_memory::recon_load_freqs());
     checkbox_load_ranges.set_value(persistent_memory::recon_load_ranges());
     checkbox_load_hamradios.set_value(persistent_memory::recon_load_hamradios());
     checkbox_update_ranges_when_recon.set_value(persistent_memory::recon_update_ranges_when_recon());
+    checkbox_auto_record_locked.set_value(persistent_memory::recon_auto_record_locked());
 };
 
 void ReconSetupViewMore::focus() {

firmware/application/apps/ui_recon_settings.hpp

@@ -132,6 +132,10 @@ class ReconSetupViewMore : public View {
         {1 * 8, 102},
         3,
         "auto update m-ranges"};
+    Checkbox checkbox_auto_record_locked{
+        {1 * 8, 132},
+        3,
+        "record locked periods"};
 };
 
 class ReconSetupView : public View {

firmware/application/apps/ui_scanner.cpp

@@ -314,17 +314,13 @@ ScannerView::ScannerView(
     // Button to load txt files from the FREQMAN folder
     button_load.on_select = [this, &nav](Button&) {
         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
+        open_view->push_dir(freqman_dir);
+        open_view->on_changed = [this, &nav](std::filesystem::path new_file_path) {
+            if (new_file_path.native().find(freqman_dir.native()) == 0) {
                 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);
+                frequency_file_load(new_file_path.stem().string(), true);
             } else {
-                nav_.display_modal("LOAD ERROR", "A valid file from\nFREQMAN directory is\nrequired.");
+                nav.display_modal("LOAD ERROR", "A valid file from\nFREQMAN directory is\nrequired.");
             }
         };
     };
@@ -392,16 +388,17 @@ ScannerView::ScannerView(
     button_audio_app.on_select = [this](Button&) {
         if (scan_thread)
             scan_thread->stop();
-        nav_.pop();
-        nav_.push<AnalogAudioView>();
+        auto settings = receiver_model.settings();
+        settings.frequency_step = field_step.selected_index_value();
+        nav_.replace<AnalogAudioView>(settings);
     };
 
     // Button to switch to Mic app
     button_mic_app.on_select = [this](Button&) {
         if (scan_thread)
             scan_thread->stop();
-        nav_.pop();
-        nav_.push<MicTXView>();
+        // MicTX wants Modulation and Bandwidth overrides, but that's only stored on the RX model.
+        nav_.replace<MicTXView>(receiver_model.settings());
     };
 
     // Button to delete current frequency from scan Freq List
@@ -447,6 +444,16 @@ ScannerView::ScannerView(
 
     // Mode field was changed (AM/NFM/WFM)
     field_mode.on_change = [this](size_t, OptionsField::value_t v) {
+        static freqman_index_t last_mode = AM_MODULATION;
+        // unsupported SPEC mode fix
+        if (v == SPEC_MODULATION) {
+            if (last_mode == AM_MODULATION)
+                v = WFM_MODULATION;
+            else
+                v = AM_MODULATION;
+            field_mode.set_selected_index(v);
+        }
+        last_mode = v;
         receiver_model.disable();
         baseband::shutdown();
         change_mode((freqman_index_t)v);
@@ -483,6 +490,7 @@ ScannerView::ScannerView(
         bigdisplay_update(BDC_GREY);  // Back to grey color
     };
 
+    // TODO: remove this parsing?
     // Button to add current frequency (found during Search) to the Scan Frequency List
     button_add.on_select = [this](Button&) {
         File scanner_file;
@@ -565,9 +573,9 @@ ScannerView::ScannerView(
 void ScannerView::frequency_file_load(std::string file_name, bool stop_all_before) {
     bool found_range{false};
     bool found_single{false};
-    freqman_index_t def_mod_index{-1};
-    freqman_index_t def_bw_index{-1};
-    freqman_index_t def_step_index{-1};
+    freqman_index_t def_mod_index{freqman_invalid_index};
+    freqman_index_t def_bw_index{freqman_invalid_index};
+    freqman_index_t def_step_index{freqman_invalid_index};
 
     // stop everything running now if required
     if (stop_all_before) {
@@ -576,56 +584,56 @@ void ScannerView::frequency_file_load(std::string file_name, bool stop_all_befor
         description_list.clear();
     }
 
-    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() < FREQMAN_MAX_PER_FILE) {  // We got space!
-                //
-                // Get modulation & bw & step from file if specified
-                // Note these values could be different for each line in the file, but we only look at the first one
-                //
-                // Note that freqman requires a very specific string for these parameters,
-                // so check syntax in frequency file if specified value isn't being loaded
-                //
-                if (def_mod_index == -1)
-                    def_mod_index = entry.modulation;
+    if (load_freqman_file(file_name, database, {})) {
+        loaded_file_name = file_name;
+        for (auto& entry_ptr : database) {
+            if (frequency_list.size() >= FREQMAN_MAX_PER_FILE)
+                break;
 
-                if (def_bw_index == -1)
-                    def_bw_index = entry.bandwidth;
+            auto& entry = *entry_ptr;
 
-                if (def_step_index == -1)
-                    def_step_index = entry.step;
+            // Get modulation & bw & step from file if specified
+            // Note these values could be different for each line in the file, but we only look at the first one
+            //
+            // Note that freqman requires a very specific string for these parameters,
+            // so check syntax in frequency file if specified value isn't being loaded
+            //
+            if (is_invalid(def_mod_index))
+                def_mod_index = entry.modulation;
 
-                // Get frequency
-                if (entry.type == RANGE) {
-                    if (!found_range) {
-                        // Set Start & End Search Range instead of populating the small in-memory frequency table
-                        // NOTE:  There may be multiple single frequencies in file, but only one search range is supported.
-                        found_range = true;
-                        frequency_range.min = entry.frequency_a;
-                        button_manual_start.set_text(to_string_short_freq(frequency_range.min));
-                        frequency_range.max = entry.frequency_b;
-                        button_manual_end.set_text(to_string_short_freq(frequency_range.max));
-                    }
-                } else if (entry.type == SINGLE) {
-                    found_single = true;
-                    frequency_list.push_back(entry.frequency_a);
-                    description_list.push_back(entry.description);
-                } else if (entry.type == HAMRADIO) {
-                    // For HAM repeaters, add both receive & transmit frequencies to scan list and modify description
-                    // (FUTURE fw versions might handle these differently)
-                    found_single = true;
-                    frequency_list.push_back(entry.frequency_a);
-                    description_list.push_back("R:" + entry.description);
+            if (is_invalid(def_bw_index))
+                def_bw_index = entry.bandwidth;
 
-                    if ((entry.frequency_a != entry.frequency_b) &&
-                        (frequency_list.size() < FREQMAN_MAX_PER_FILE)) {
-                        frequency_list.push_back(entry.frequency_b);
-                        description_list.push_back("T:" + entry.description);
-                    }
+            if (is_invalid(def_step_index))
+                def_step_index = entry.step;
+
+            // Get frequency
+            if (entry.type == freqman_type::Range) {
+                if (!found_range) {
+                    // Set Start & End Search Range instead of populating the small in-memory frequency table
+                    // NOTE:  There may be multiple single frequencies in file, but only one search range is supported.
+                    found_range = true;
+                    frequency_range.min = entry.frequency_a;
+                    button_manual_start.set_text(to_string_short_freq(frequency_range.min));
+                    frequency_range.max = entry.frequency_b;
+                    button_manual_end.set_text(to_string_short_freq(frequency_range.max));
+                }
+            } else if (entry.type == freqman_type::Single) {
+                found_single = true;
+                frequency_list.push_back(entry.frequency_a);
+                description_list.push_back(entry.description);
+            } else if (entry.type == freqman_type::HamRadio) {
+                // For HAM repeaters, add both receive & transmit frequencies to scan list and modify description
+                // (FUTURE fw versions might handle these differently)
+                found_single = true;
+                frequency_list.push_back(entry.frequency_a);
+                description_list.push_back("R:" + entry.description);
+
+                if ((entry.frequency_a != entry.frequency_b) &&
+                    (frequency_list.size() < FREQMAN_MAX_PER_FILE)) {
+                    frequency_list.push_back(entry.frequency_b);
+                    description_list.push_back("T:" + entry.description);
                 }
-            } else {
-                break;  // No more space: Stop reading the txt file !
             }
         }
     } else {
@@ -639,13 +647,13 @@ void ScannerView::frequency_file_load(std::string file_name, bool stop_all_befor
         desc_freq_list_scan = desc_freq_list_scan + "...";
     }
 
-    if ((def_mod_index != -1) && (def_mod_index != (freqman_index_t)field_mode.selected_index_value()))
+    if (is_valid(def_mod_index) && def_mod_index != (freqman_index_t)field_mode.selected_index_value())
         field_mode.set_by_value(def_mod_index);  // Update mode (also triggers a change callback that disables & reenables RF background)
 
-    if (def_bw_index != -1)  // Update BW if specified in file
+    if (is_valid(def_bw_index))  // Update BW if specified in file
         field_bw.set_selected_index(def_bw_index);
 
-    if (def_step_index != -1)  // Update step if specified in file
+    if (is_valid(def_step_index))  // Update step if specified in file
         field_step.set_selected_index(def_step_index);
 
     audio::output::stop();

firmware/application/apps/ui_scanner.hpp

@@ -90,7 +90,7 @@ class ScannerView : public View {
 
     std::string title() const override { return "Scanner"; };
     std::vector<rf::Frequency> frequency_list{};
-    std::vector<string> description_list{};
+    std::vector<std::string> description_list{};
 
     // void set_parent_rect(const Rect new_parent_rect) override;
 

firmware/application/apps/ui_search.cpp

@@ -122,17 +122,7 @@ void SearchView::do_detection() {
                         locked = true;
                         locked_bin = bin_max;
 
-                        // TODO
-                        /*nav_.pop();
-                                                receiver_model.disable();
-                                                baseband::shutdown();
-                                                nav_.pop();*/
-
-                        /*if (options_goto.selected_index() == 1)
-                                                        nav_.push<AnalogAudioView>(false);
-                                                else if (options_goto.selected_index() == 2)
-                                                        nav_.push<POCSAGAppView>();
-                                                */
+                        // TODO: open Audio.
                     } else
                         text_infos.set("Out of range");
                 }
@@ -378,14 +368,26 @@ SearchView::SearchView(
 
     field_frequency_min.set_value(receiver_model.target_frequency() - 1000000);
     field_frequency_min.set_step(100000);
-    field_frequency_min.updated = [this](rf::Frequency) {
-        on_range_changed();
+    field_frequency_min.on_change = [this](rf::Frequency) {
+        this->on_range_changed();
+    };
+    field_frequency_min.on_edit = [this, &nav]() {
+        auto new_view = nav.push<FrequencyKeypadView>(receiver_model.target_frequency() - 1000000);
+        new_view->on_changed = [this](rf::Frequency f) {
+            this->field_frequency_min.set_value(f);
+        };
     };
 
     field_frequency_max.set_value(receiver_model.target_frequency() + 1000000);
     field_frequency_max.set_step(100000);
-    field_frequency_max.updated = [this](rf::Frequency) {
-        on_range_changed();
+    field_frequency_max.on_change = [this](rf::Frequency) {
+        this->on_range_changed();
+    };
+    field_frequency_max.on_edit = [this, &nav]() {
+        auto new_view = nav.push<FrequencyKeypadView>(receiver_model.target_frequency() + 1000000);
+        new_view->on_changed = [this](rf::Frequency f) {
+            this->field_frequency_max.set_value(f);
+        };
     };
 
     field_lna.set_value(receiver_model.lna());
@@ -402,7 +404,6 @@ SearchView::SearchView(
 
     on_range_changed();
 
-    receiver_model.set_modulation(ReceiverModel::Mode::SpectrumAnalysis);
     receiver_model.enable();
 }
 

firmware/application/apps/ui_search.hpp

@@ -26,7 +26,6 @@
 #include "spectrum_color_lut.hpp"
 
 #include "ui_receiver.hpp"
-#include "ui_freq_field.hpp"
 #include "ui_styles.hpp"
 #include "recent_entries.hpp"
 
@@ -93,8 +92,8 @@ class SearchView : public View {
     NavigationView& nav_;
     RxRadioState radio_state_{
         2500000 /* bandwidth */,
-        SEARCH_SLICE_WIDTH /* sampling rate */
-    };
+        SEARCH_SLICE_WIDTH /* sampling rate */,
+        ReceiverModel::Mode::SpectrumAnalysis};
 
     struct slice_t {
         rf::Frequency center_frequency;
@@ -147,14 +146,10 @@ class SearchView : public View {
         {{1 * 8, 25 * 8}, "Accuracy +/-4.9kHz", Color::light_grey()},
         {{26 * 8, 25 * 8}, "MHz", Color::light_grey()}};
 
-    RxFrequencyField field_frequency_min{
-        {1 * 8, 1 * 16},
-        nav_,
-        false};
-    RxFrequencyField field_frequency_max{
-        {11 * 8, 1 * 16},
-        nav_,
-        false};
+    FrequencyField field_frequency_min{
+        {1 * 8, 1 * 16}};
+    FrequencyField field_frequency_max{
+        {11 * 8, 1 * 16}};
     LNAGainField field_lna{
         {22 * 8, 1 * 16}};
     VGAGainField field_vga{

firmware/application/apps/ui_settings.cpp

@@ -24,6 +24,7 @@
 #include "ui_settings.hpp"
 
 #include "ui_navigation.hpp"
+#include "ui_receiver.hpp"
 #include "ui_touch_calibration.hpp"
 
 #include "portapack_persistent_memory.hpp"
@@ -32,16 +33,27 @@ using namespace lpc43xx;
 
 #include "audio.hpp"
 #include "portapack.hpp"
-using portapack::receiver_model;
 using namespace portapack;
 
+#include "file.hpp"
+namespace fs = std::filesystem;
+
 #include "string_format.hpp"
 #include "ui_styles.hpp"
 #include "cpld_update.hpp"
 
-#include "freqman.hpp"
+namespace pmem = portapack::persistent_memory;
 
 namespace ui {
+
+/* Sends a UI refresh message to cause the status bar to redraw. */
+static void send_system_refresh() {
+    StatusRefreshMessage message{};
+    EventDispatcher::send_message(message);
+}
+
+/* SetDateTimeView ***************************************/
+
 SetDateTimeView::SetDateTimeView(
     NavigationView& nav) {
     button_save.on_select = [&nav, this](Button&) {
@@ -105,13 +117,15 @@ SetDateTimeModel SetDateTimeView::form_collect() {
         .second = static_cast<uint8_t>(field_second.value())};
 }
 
+/* SetRadioView ******************************************/
+
 SetRadioView::SetRadioView(
     NavigationView& nav) {
     button_cancel.on_select = [&nav](Button&) {
         nav.pop();
     };
 
-    const auto reference = portapack::clock_manager.get_reference();
+    const auto reference = clock_manager.get_reference();
 
     std::string source_name("---");
     switch (reference.source) {
@@ -156,19 +170,18 @@ SetRadioView::SetRadioView(
                   &button_cancel});
 
     SetFrequencyCorrectionModel model{
-        static_cast<int8_t>(portapack::persistent_memory::correction_ppb() / 1000), 0};
+        static_cast<int8_t>(pmem::correction_ppb() / 1000), 0};
 
     form_init(model);
 
-    check_clkout.set_value(portapack::persistent_memory::clkout_enabled());
+    check_clkout.set_value(pmem::clkout_enabled());
     check_clkout.on_select = [this](Checkbox&, bool v) {
         clock_manager.enable_clock_output(v);
-        portapack::persistent_memory::set_clkout_enabled(v);
-        StatusRefreshMessage message{};
-        EventDispatcher::send_message(message);
+        pmem::set_clkout_enabled(v);
+        send_system_refresh();
     };
 
-    field_clkout_freq.set_value(portapack::persistent_memory::clkout_freq());
+    field_clkout_freq.set_value(pmem::clkout_freq());
     value_freq_step.set_style(&Styles::light_grey);
 
     field_clkout_freq.on_select = [this](NumberField&) {
@@ -193,9 +206,9 @@ SetRadioView::SetRadioView(
         field_clkout_freq.set_step(pow(10, freq_step_khz));
     };
 
-    check_bias.set_value(portapack::get_antenna_bias());
+    check_bias.set_value(get_antenna_bias());
     check_bias.on_select = [this](Checkbox&, bool v) {
-        portapack::set_antenna_bias(v);
+        set_antenna_bias(v);
 
         // Update the radio.
         receiver_model.set_antenna_bias();
@@ -205,15 +218,14 @@ SetRadioView::SetRadioView(
         if (!v)
             radio::set_antenna_bias(false);
 
-        StatusRefreshMessage message{};
-        EventDispatcher::send_message(message);
+        send_system_refresh();
     };
 
     button_save.on_select = [this, &nav](Button&) {
         const auto model = this->form_collect();
-        portapack::persistent_memory::set_correction_ppb(model.ppm * 1000);
-        portapack::persistent_memory::set_clkout_freq(model.freq);
-        clock_manager.enable_clock_output(portapack::persistent_memory::clkout_enabled());
+        pmem::set_correction_ppb(model.ppm * 1000);
+        pmem::set_clkout_freq(model.freq);
+        clock_manager.enable_clock_output(pmem::clkout_enabled());
         nav.pop();
     };
 }
@@ -233,6 +245,8 @@ SetFrequencyCorrectionModel SetRadioView::form_collect() {
     };
 }
 
+/* SetUIView *********************************************/
+
 SetUIView::SetUIView(NavigationView& nav) {
     add_children({&checkbox_disable_touchscreen,
                   &checkbox_bloff,
@@ -241,39 +255,76 @@ SetUIView::SetUIView(NavigationView& nav) {
                   &checkbox_showclock,
                   &options_clockformat,
                   &checkbox_guireturnflag,
+                  &labels,
+                  &toggle_camera,
+                  &toggle_sleep,
+                  &toggle_stealth,
+                  &toggle_converter,
+                  &toggle_bias_tee,
+                  &toggle_clock,
+                  &toggle_mute,
+                  &toggle_sd_card,
                   &button_save,
                   &button_cancel});
 
-    checkbox_disable_touchscreen.set_value(persistent_memory::disable_touchscreen());
-    checkbox_showsplash.set_value(persistent_memory::config_splash());
-    checkbox_showclock.set_value(!persistent_memory::hide_clock());
-    checkbox_guireturnflag.set_value(persistent_memory::show_gui_return_icon());
+    // Display "Disable speaker" option only if AK4951 Codec which has separate speaker/headphone control
+    if (audio::speaker_disable_supported()) {
+        add_child(&toggle_speaker);
+    }
 
-    const auto backlight_config = persistent_memory::config_backlight_timer();
+    checkbox_disable_touchscreen.set_value(pmem::disable_touchscreen());
+    checkbox_showsplash.set_value(pmem::config_splash());
+    checkbox_showclock.set_value(!pmem::hide_clock());
+    checkbox_guireturnflag.set_value(pmem::show_gui_return_icon());
+
+    const auto backlight_config = pmem::config_backlight_timer();
     checkbox_bloff.set_value(backlight_config.timeout_enabled());
     options_bloff.set_by_value(backlight_config.timeout_enum());
 
-    if (persistent_memory::clock_with_date()) {
+    if (pmem::clock_with_date()) {
         options_clockformat.set_selected_index(1);
     } else {
         options_clockformat.set_selected_index(0);
     }
 
+    // NB: Invert so "active" == "not hidden"
+    toggle_camera.set_value(!pmem::ui_hide_camera());
+    toggle_sleep.set_value(!pmem::ui_hide_sleep());
+    toggle_stealth.set_value(!pmem::ui_hide_stealth());
+    toggle_converter.set_value(!pmem::ui_hide_converter());
+    toggle_bias_tee.set_value(!pmem::ui_hide_bias_tee());
+    toggle_clock.set_value(!pmem::ui_hide_clock());
+    toggle_speaker.set_value(!pmem::ui_hide_speaker());
+    toggle_mute.set_value(!pmem::ui_hide_mute());
+    toggle_sd_card.set_value(!pmem::ui_hide_sd_card());
+
     button_save.on_select = [&nav, this](Button&) {
-        persistent_memory::set_config_backlight_timer({(persistent_memory::backlight_timeout_t)options_bloff.selected_index_value(),
-                                                       checkbox_bloff.value()});
+        pmem::set_config_backlight_timer({(pmem::backlight_timeout_t)options_bloff.selected_index_value(),
+                                          checkbox_bloff.value()});
 
         if (checkbox_showclock.value()) {
             if (options_clockformat.selected_index() == 1)
-                persistent_memory::set_clock_with_date(true);
+                pmem::set_clock_with_date(true);
             else
-                persistent_memory::set_clock_with_date(false);
+                pmem::set_clock_with_date(false);
         }
 
-        persistent_memory::set_config_splash(checkbox_showsplash.value());
-        persistent_memory::set_clock_hidden(!checkbox_showclock.value());
-        persistent_memory::set_gui_return_icon(checkbox_guireturnflag.value());
-        persistent_memory::set_disable_touchscreen(checkbox_disable_touchscreen.value());
+        pmem::set_config_splash(checkbox_showsplash.value());
+        pmem::set_clock_hidden(!checkbox_showclock.value());
+        pmem::set_gui_return_icon(checkbox_guireturnflag.value());
+        pmem::set_disable_touchscreen(checkbox_disable_touchscreen.value());
+
+        pmem::set_ui_hide_camera(!toggle_camera.value());
+        pmem::set_ui_hide_sleep(!toggle_sleep.value());
+        pmem::set_ui_hide_stealth(!toggle_stealth.value());
+        pmem::set_ui_hide_converter(!toggle_converter.value());
+        pmem::set_ui_hide_bias_tee(!toggle_bias_tee.value());
+        pmem::set_ui_hide_clock(!toggle_clock.value());
+        pmem::set_ui_hide_speaker(!toggle_speaker.value());
+        pmem::set_ui_hide_mute(!toggle_mute.value());
+        pmem::set_ui_hide_sd_card(!toggle_sd_card.value());
+        send_system_refresh();
+
         nav.pop();
     };
     button_cancel.on_select = [&nav, this](Button&) {
@@ -285,21 +336,20 @@ void SetUIView::focus() {
     button_save.focus();
 }
 
-// ---------------------------------------------------------
-// Appl. Settings
-// ---------------------------------------------------------
+/* SetAppSettingsView ************************************/
+
 SetAppSettingsView::SetAppSettingsView(NavigationView& nav) {
     add_children({&checkbox_load_app_settings,
                   &checkbox_save_app_settings,
                   &button_save,
                   &button_cancel});
 
-    checkbox_load_app_settings.set_value(persistent_memory::load_app_settings());
-    checkbox_save_app_settings.set_value(persistent_memory::save_app_settings());
+    checkbox_load_app_settings.set_value(pmem::load_app_settings());
+    checkbox_save_app_settings.set_value(pmem::save_app_settings());
 
     button_save.on_select = [&nav, this](Button&) {
-        persistent_memory::set_load_app_settings(checkbox_load_app_settings.value());
-        persistent_memory::set_save_app_settings(checkbox_save_app_settings.value());
+        pmem::set_load_app_settings(checkbox_load_app_settings.value());
+        pmem::set_save_app_settings(checkbox_save_app_settings.value());
         nav.pop();
     };
     button_cancel.on_select = [&nav, this](Button&) {
@@ -311,9 +361,8 @@ void SetAppSettingsView::focus() {
     button_save.focus();
 }
 
-// ---------------------------------------------------------
-// Converter Settings
-// ---------------------------------------------------------
+/* SetConverterSettingsView ******************************/
+
 SetConverterSettingsView::SetConverterSettingsView(NavigationView& nav) {
     add_children({&check_show_converter,
                   &check_converter,
@@ -321,46 +370,43 @@ SetConverterSettingsView::SetConverterSettingsView(NavigationView& nav) {
                   &button_converter_freq,
                   &button_return});
 
-    check_show_converter.set_value(!portapack::persistent_memory::config_hide_converter());
+    check_show_converter.set_value(!pmem::ui_hide_converter());
     check_show_converter.on_select = [this](Checkbox&, bool v) {
-        portapack::persistent_memory::set_config_hide_converter(!v);
+        pmem::set_ui_hide_converter(!v);
         if (!v) {
             check_converter.set_value(false);
         }
         // Retune to take converter change in account.
         receiver_model.set_target_frequency(receiver_model.target_frequency());
         // Refresh status bar with/out converter
-        StatusRefreshMessage message{};
-        EventDispatcher::send_message(message);
+        send_system_refresh();
     };
 
-    check_converter.set_value(portapack::persistent_memory::config_converter());
+    check_converter.set_value(pmem::config_converter());
     check_converter.on_select = [this](Checkbox&, bool v) {
         if (v) {
             check_show_converter.set_value(true);
-            portapack::persistent_memory::set_config_hide_converter(false);
+            pmem::set_ui_hide_converter(false);
         }
-        portapack::persistent_memory::set_config_converter(v);
+        pmem::set_config_converter(v);
         // Retune to take converter change in account
         receiver_model.set_target_frequency(receiver_model.target_frequency());
         // Refresh status bar with/out converter
-        StatusRefreshMessage message{};
-        EventDispatcher::send_message(message);
+        send_system_refresh();
     };
 
-    converter_mode.set_by_value(portapack::persistent_memory::config_updown_converter());
+    converter_mode.set_by_value(pmem::config_updown_converter());
     converter_mode.on_change = [this](size_t, OptionsField::value_t v) {
-        portapack::persistent_memory::set_config_updown_converter(v);
+        pmem::set_config_updown_converter(v);
         // Refresh status bar with icon up or down
-        StatusRefreshMessage message{};
-        EventDispatcher::send_message(message);
+        send_system_refresh();
     };
 
-    button_converter_freq.set_text(to_string_short_freq(portapack::persistent_memory::config_converter_freq()) + "MHz");
+    button_converter_freq.set_text(to_string_short_freq(pmem::config_converter_freq()) + "MHz");
     button_converter_freq.on_select = [this, &nav](Button& button) {
-        auto new_view = nav.push<FrequencyKeypadView>(portapack::persistent_memory::config_converter_freq());
+        auto new_view = nav.push<FrequencyKeypadView>(pmem::config_converter_freq());
         new_view->on_changed = [this, &button](rf::Frequency f) {
-            portapack::persistent_memory::set_config_converter_freq(f);
+            pmem::set_config_converter_freq(f);
             // Retune to take converter change in account
             receiver_model.set_target_frequency(receiver_model.target_frequency());
             button_converter_freq.set_text("<" + to_string_short_freq(f) + " MHz>");
@@ -376,9 +422,8 @@ void SetConverterSettingsView::focus() {
     button_return.focus();
 }
 
-// ---------------------------------------------------------
-// Frequency Correction Settings
-// ---------------------------------------------------------
+/* SetFrequencyCorrectionView ****************************/
+
 SetFrequencyCorrectionView::SetFrequencyCorrectionView(NavigationView& nav) {
     add_children({&text_freqCorrection_about,
                   &frequency_rx_correction_mode,
@@ -387,36 +432,36 @@ SetFrequencyCorrectionView::SetFrequencyCorrectionView(NavigationView& nav) {
                   &button_freq_tx_correction,
                   &button_return});
 
-    frequency_rx_correction_mode.set_by_value(portapack::persistent_memory::config_freq_rx_correction_updown());
+    frequency_rx_correction_mode.set_by_value(pmem::config_freq_rx_correction_updown());
     frequency_rx_correction_mode.on_change = [this](size_t, OptionsField::value_t v) {
-        portapack::persistent_memory::set_freq_rx_correction_updown(v);
+        pmem::set_freq_rx_correction_updown(v);
     };
 
-    frequency_tx_correction_mode.set_by_value(portapack::persistent_memory::config_freq_rx_correction_updown());
+    frequency_tx_correction_mode.set_by_value(pmem::config_freq_rx_correction_updown());
     frequency_tx_correction_mode.on_change = [this](size_t, OptionsField::value_t v) {
-        portapack::persistent_memory::set_freq_tx_correction_updown(v);
+        pmem::set_freq_tx_correction_updown(v);
     };
 
-    button_freq_rx_correction.set_text(to_string_short_freq(portapack::persistent_memory::config_freq_rx_correction()) + "MHz (Rx)");
+    button_freq_rx_correction.set_text(to_string_short_freq(pmem::config_freq_rx_correction()) + "MHz (Rx)");
     button_freq_rx_correction.on_select = [this, &nav](Button& button) {
-        auto new_view = nav.push<FrequencyKeypadView>(portapack::persistent_memory::config_converter_freq());
+        auto new_view = nav.push<FrequencyKeypadView>(pmem::config_converter_freq());
         new_view->on_changed = [this, &button](rf::Frequency f) {
             if (f >= MAX_FREQ_CORRECTION)
                 f = MAX_FREQ_CORRECTION;
-            portapack::persistent_memory::set_config_freq_rx_correction(f);
+            pmem::set_config_freq_rx_correction(f);
             // Retune to take converter change in account
             receiver_model.set_target_frequency(receiver_model.target_frequency());
             button_freq_rx_correction.set_text("<" + to_string_short_freq(f) + " MHz>");
         };
     };
 
-    button_freq_tx_correction.set_text(to_string_short_freq(portapack::persistent_memory::config_freq_tx_correction()) + "MHz (Tx)");
+    button_freq_tx_correction.set_text(to_string_short_freq(pmem::config_freq_tx_correction()) + "MHz (Tx)");
     button_freq_tx_correction.on_select = [this, &nav](Button& button) {
-        auto new_view = nav.push<FrequencyKeypadView>(portapack::persistent_memory::config_converter_freq());
+        auto new_view = nav.push<FrequencyKeypadView>(pmem::config_converter_freq());
         new_view->on_changed = [this, &button](rf::Frequency f) {
             if (f >= MAX_FREQ_CORRECTION)
                 f = MAX_FREQ_CORRECTION;
-            portapack::persistent_memory::set_config_freq_tx_correction(f);
+            pmem::set_config_freq_tx_correction(f);
             // Retune to take converter change in account
             receiver_model.set_target_frequency(receiver_model.target_frequency());
             button_freq_tx_correction.set_text("<" + to_string_short_freq(f) + " MHz>");
@@ -432,9 +477,8 @@ void SetFrequencyCorrectionView::focus() {
     button_return.focus();
 }
 
-// ---------------------------------------------------------
-// Persistent Memory Settings
-// ---------------------------------------------------------
+/* SetPersistentMemoryView *******************************/
+
 SetPersistentMemoryView::SetPersistentMemoryView(NavigationView& nav) {
     add_children({&text_pmem_about,
                   &text_pmem_informations,
@@ -445,48 +489,42 @@ SetPersistentMemoryView::SetPersistentMemoryView(NavigationView& nav) {
                   &button_load_mem_defaults,
                   &button_return});
 
-    check_use_sdcard_for_pmem.set_value(portapack::persistent_memory::should_use_sdcard_for_pmem());
+    check_use_sdcard_for_pmem.set_value(pmem::should_use_sdcard_for_pmem());
     check_use_sdcard_for_pmem.on_select = [this](Checkbox&, bool v) {
         File pmem_flag_file_handle;
-        std::string pmem_flag_file = PMEM_FILEFLAG;
         if (v) {
-            auto result = pmem_flag_file_handle.open(pmem_flag_file);
-            if (result.is_valid()) {
-                auto result = pmem_flag_file_handle.create(pmem_flag_file);  // third: create if it is not there
-                if (!result.is_valid()) {
-                    text_pmem_status.set("pmem flag file created");
-                } else {
-                    text_pmem_status.set("!err. creating pmem flagfile!");
-                }
-            } else {
+            if (fs::file_exists(PMEM_FILEFLAG)) {
                 text_pmem_status.set("pmem flag already present");
+            } else {
+                auto error = pmem_flag_file_handle.create(PMEM_FILEFLAG);
+                if (error)
+                    text_pmem_status.set("!err. creating pmem flagfile!");
+                else
+                    text_pmem_status.set("pmem flag file created");
             }
         } else {
-            auto result = delete_file(pmem_flag_file);
-            if (result.code() != FR_OK) {
+            auto result = delete_file(PMEM_FILEFLAG);
+            if (result.code() != FR_OK)
                 text_pmem_status.set("!err. deleting pmem flagfile!");
-            } else {
+            else
                 text_pmem_status.set("pmem flag file deleted");
-            }
         }
     };
 
     button_save_mem_to_file.on_select = [&nav, this](Button&) {
-        if (!portapack::persistent_memory::save_persistent_settings_to_file()) {
+        if (!pmem::save_persistent_settings_to_file())
             text_pmem_status.set("!problem saving settings!");
-        } else {
+        else
             text_pmem_status.set("settings saved");
-        }
     };
 
     button_load_mem_from_file.on_select = [&nav, this](Button&) {
-        if (!portapack::persistent_memory::load_persistent_settings_from_file()) {
+        if (!pmem::load_persistent_settings_from_file()) {
             text_pmem_status.set("!problem loading settings!");
         } else {
             text_pmem_status.set("settings loaded");
             // Refresh status bar with icon up or down
-            StatusRefreshMessage message{};
-            EventDispatcher::send_message(message);
+            send_system_refresh();
         }
     };
 
@@ -497,7 +535,7 @@ SetPersistentMemoryView::SetPersistentMemoryView(NavigationView& nav) {
             YESNO,
             [this](bool choice) {
                 if (choice) {
-                    portapack::persistent_memory::cache::defaults();
+                    pmem::cache::defaults();
                 }
             });
     };
@@ -511,22 +549,18 @@ void SetPersistentMemoryView::focus() {
     button_return.focus();
 }
 
-// ---------------------------------------------------------
-// Audio Settings
-// ---------------------------------------------------------
+/* SetAudioView ******************************************/
+
 SetAudioView::SetAudioView(NavigationView& nav) {
     add_children({&labels,
                   &field_tone_mix,
-                  &checkbox_speaker_disable,
                   &button_save,
                   &button_cancel});
 
-    field_tone_mix.set_value(persistent_memory::tone_mix());
-    checkbox_speaker_disable.set_value(persistent_memory::config_speaker_disable());
+    field_tone_mix.set_value(pmem::tone_mix());
 
     button_save.on_select = [&nav, this](Button&) {
-        persistent_memory::set_tone_mix(field_tone_mix.value());
-        persistent_memory::set_config_speaker_disable(checkbox_speaker_disable.value());
+        pmem::set_tone_mix(field_tone_mix.value());
         audio::output::update_audio_mute();
         nav.pop();
     };
@@ -540,18 +574,17 @@ void SetAudioView::focus() {
     button_save.focus();
 }
 
-// ---------------------------------------------------------
-// QR Code Settings
-// ------------------------------------------------------
+/* SetQRCodeView *****************************************/
+
 SetQRCodeView::SetQRCodeView(NavigationView& nav) {
     add_children({&checkbox_bigger_qr,
                   &button_save,
                   &button_cancel});
 
-    checkbox_bigger_qr.set_value(persistent_memory::show_bigger_qr_code());
+    checkbox_bigger_qr.set_value(pmem::show_bigger_qr_code());
 
     button_save.on_select = [&nav, this](Button&) {
-        persistent_memory::set_show_bigger_qr_code(checkbox_bigger_qr.value());
+        pmem::set_show_bigger_qr_code(checkbox_bigger_qr.value());
         nav.pop();
     };
 
@@ -564,19 +597,18 @@ void SetQRCodeView::focus() {
     button_save.focus();
 }
 
-// ---------------------------------------------------------
-// Rotary Encoder Dial Settings
-// ---------------------------------------------------------
+/* SetEncoderDialView ************************************/
+
 SetEncoderDialView::SetEncoderDialView(NavigationView& nav) {
     add_children({&labels,
                   &field_encoder_dial_sensitivity,
                   &button_save,
                   &button_cancel});
 
-    field_encoder_dial_sensitivity.set_by_value(persistent_memory::config_encoder_dial_sensitivity());
+    field_encoder_dial_sensitivity.set_by_value(pmem::config_encoder_dial_sensitivity());
 
     button_save.on_select = [&nav, this](Button&) {
-        persistent_memory::set_encoder_dial_sensitivity(field_encoder_dial_sensitivity.selected_index_value());
+        pmem::set_encoder_dial_sensitivity(field_encoder_dial_sensitivity.selected_index_value());
         nav.pop();
     };
 
@@ -589,11 +621,10 @@ void SetEncoderDialView::focus() {
     button_save.focus();
 }
 
-// ---------------------------------------------------------
-// Settings main menu
-// ---------------------------------------------------------
+/* SettingsMenuView **************************************/
+
 SettingsMenuView::SettingsMenuView(NavigationView& nav) {
-    if (portapack::persistent_memory::show_gui_return_icon()) {
+    if (pmem::show_gui_return_icon()) {
         add_items({{"..", ui::Color::light_grey(), &bitmap_icon_previous, [&nav]() { nav.pop(); }}});
     }
     add_items({

firmware/application/apps/ui_settings.hpp

@@ -27,6 +27,7 @@
 #include "ui_widget.hpp"
 #include "ui_menu.hpp"
 #include "ui_navigation.hpp"
+#include "bitmap.hpp"
 #include "ff.h"
 #include "portapack_persistent_memory.hpp"
 
@@ -34,7 +35,7 @@
 
 namespace ui {
 
-#define MAX_FREQ_CORRECTION 4294967295  // maximum possible for an uint32_t
+#define MAX_FREQ_CORRECTION INT32_MAX
 
 struct SetDateTimeModel {
     uint16_t year;
@@ -208,16 +209,16 @@ class SetUIView : public View {
 
    private:
     Checkbox checkbox_disable_touchscreen{
-        {3 * 8, 2 * 16},
+        {3 * 8, 1 * 16},
         20,
         "Disable touchscreen"};
 
     Checkbox checkbox_bloff{
-        {3 * 8, 4 * 16},
+        {3 * 8, 3 * 16},
         20,
         "Backlight off after:"};
     OptionsField options_bloff{
-        {60, 5 * 16 + 8},
+        {60, 4 * 16 + 8},
         20,
         {
             {"5 seconds", backlight_timeout_t::Timeout5Sec},
@@ -231,25 +232,65 @@ class SetUIView : public View {
         }};
 
     Checkbox checkbox_showsplash{
-        {3 * 8, 7 * 16},
+        {3 * 8, 6 * 16},
         20,
         "Show splash"};
 
     Checkbox checkbox_showclock{
-        {3 * 8, 9 * 16},
+        {3 * 8, 8 * 16},
         20,
         "Show clock with:"};
 
     OptionsField options_clockformat{
-        {60, 10 * 16 + 8},
+        {60, 9 * 16 + 8},
         20,
         {{"time only", 0},
          {"time and date", 1}}};
 
     Checkbox checkbox_guireturnflag{
-        {3 * 8, 12 * 16},
-        25,
-        "Show return icon in GUI"};
+        {3 * 8, 11 * 16},
+        20,
+        "Back button in menu"};
+
+    Labels labels{
+        {{3 * 8, 13 * 16}, "Show/Hide Status Icons", Color::light_grey()},
+    };
+
+    ImageToggle toggle_camera{
+        {7 * 8, 14 * 16 + 2, 16, 16},
+        &bitmap_icon_camera};
+
+    ImageToggle toggle_sleep{
+        {9 * 8, 14 * 16 + 2, 16, 16},
+        &bitmap_icon_sleep};
+
+    ImageToggle toggle_stealth{
+        {11 * 8, 14 * 16 + 2, 16, 16},
+        &bitmap_icon_stealth};
+
+    ImageToggle toggle_converter{
+        {13 * 8, 14 * 16 + 2, 16, 16},
+        &bitmap_icon_upconvert};
+
+    ImageToggle toggle_bias_tee{
+        {15 * 8, 14 * 16 + 2, 16, 16},
+        &bitmap_icon_biast_off};
+
+    ImageToggle toggle_clock{
+        {17 * 8, 14 * 16 + 2, 8, 16},
+        &bitmap_icon_clk_ext};
+
+    ImageToggle toggle_mute{
+        {18 * 8, 14 * 16 + 2, 16, 16},
+        &bitmap_icon_speaker_and_headphones_mute};
+
+    ImageToggle toggle_speaker{
+        {20 * 8, 14 * 16 + 2, 16, 16},
+        &bitmap_icon_speaker_mute};
+
+    ImageToggle toggle_sd_card{
+        {22 * 8, 14 * 16 + 2, 16, 16},
+        &bitmap_sd_card_ok};
 
     Button button_save{
         {2 * 8, 16 * 16, 12 * 8, 32},
@@ -388,11 +429,6 @@ class SetAudioView : public View {
         1,
         '0'};
 
-    Checkbox checkbox_speaker_disable{
-        {2 * 8, 6 * 16},
-        25,
-        "Disable AK speaker amp"};
-
     Button button_save{
         {2 * 8, 16 * 16, 12 * 8, 32},
         "Save"};

firmware/application/apps/ui_spectrum_painter.cpp

@@ -57,6 +57,8 @@ SpectrumPainterView::SpectrumPainterView(
     input_image.set_parent_rect(view_rect);
     input_text.set_parent_rect(view_rect);
 
+    freqman_set_bandwidth_option(SPEC_MODULATION, option_bandwidth);
+
     field_frequency.set_step(5000);
 
     tx_gain = transmitter_model.tx_gain();

firmware/application/apps/ui_spectrum_painter.hpp

@@ -127,7 +127,7 @@ class SpectrumPainterView : public View {
     OptionsField option_bandwidth{
         {4 * 8, footer_location + 2 * 16},
         5,
-        {BW_OPTIONS}};
+        {}};
 
     NumberField field_duration{
         {13 * 8, footer_location + 2 * 16},

firmware/application/apps/ui_ss_viewer.cpp

@@ -26,6 +26,8 @@ namespace fs = std::filesystem;
 
 namespace ui {
 
+const std::filesystem::path splash_dot_bmp{u"/splash.bmp"};
+
 ScreenshotViewer::ScreenshotViewer(
     NavigationView& nav,
     const std::filesystem::path& path)
@@ -40,11 +42,9 @@ bool ScreenshotViewer::on_key(KeyEvent) {
 }
 
 void ScreenshotViewer::paint(Painter& painter) {
-    constexpr size_t pixel_width = 240;
-    constexpr size_t pixel_height = 320;
     File file{};
 
-    painter.fill_rectangle({0, 0, pixel_width, pixel_height}, Color::black());
+    painter.fill_rectangle({0, 0, screen_width, screen_height}, Color::black());
 
     auto show_invalid = [&]() {
         painter.draw_string({10, 160}, Styles::white, "Not a valid screenshot.");
@@ -65,19 +65,19 @@ void ScreenshotViewer::paint(Painter& painter) {
     constexpr size_t read_chunk = 80;  // NB: must be a factor of pixel_width.
     constexpr size_t buffer_size = sizeof(ColorRGB888) * read_chunk;
     uint8_t buffer[buffer_size];
-    std::array<Color, pixel_width> pixel_data;
+    std::array<Color, screen_width> pixel_data;
 
     // Seek past all the headers.
     file.seek(43);
 
-    for (auto line = 0u; line < pixel_height; ++line) {
+    for (auto line = 0u; line < screen_height; ++line) {
         // Seek past the per-line header.
         file.seek(file.tell() + 6);
 
         // Per comment in PNGWriter, read in chunks of 80.
         // NB: Reading in one large chunk caused corruption so there's
         // likely a bug lurking in the SD Card/FatFs layer.
-        for (auto offset = 0u; offset < pixel_width; offset += read_chunk) {
+        for (auto offset = 0u; offset < screen_width; offset += read_chunk) {
             auto read = file.read(buffer, buffer_size);
 
             if (!read || *read != buffer_size) {
@@ -92,8 +92,42 @@ void ScreenshotViewer::paint(Painter& painter) {
             }
         }
 
-        display.draw_pixels({0, (int)line, pixel_width, 1}, pixel_data);
+        display.draw_pixels({0, (int)line, screen_width, 1}, pixel_data);
     }
 }
 
-}  // namespace ui
+SplashViewer::SplashViewer(
+    NavigationView& nav,
+    const std::filesystem::path& path)
+    : nav_{nav},
+      path_{path} {
+    valid_image = false;
+    set_focusable(true);
+}
+
+bool SplashViewer::on_key(const KeyEvent key) {
+    if (valid_image && key == KeyEvent::Right) {
+        delete_file(splash_dot_bmp);
+        copy_file(path_, splash_dot_bmp);
+    }
+
+    nav_.pop();
+    return true;
+}
+
+void SplashViewer::paint(Painter& painter) {
+    painter.fill_rectangle({0, 0, screen_width, screen_height}, Color::black());
+
+    if (!portapack::display.drawBMP2({0, 0}, path_)) {
+        painter.draw_string({10, 160}, Styles::white, "Not a valid splash image.");
+        return;
+    }
+
+    // Show option to set splash screen if it's not already the splash screen
+    if (!path_iequal(path_, splash_dot_bmp)) {
+        painter.draw_string({0, 0}, Styles::white, "*RIGHT BUTTON UPDATES SPLASH*");
+        valid_image = true;
+    }
+}
+
+}  // namespace ui

firmware/application/apps/ui_ss_viewer.hpp

@@ -31,6 +31,8 @@
 
 namespace ui {
 
+extern const std::filesystem::path splash_dot_bmp;
+
 class ScreenshotViewer : public View {
    public:
     ScreenshotViewer(NavigationView& nav, const std::filesystem::path& path);
@@ -42,6 +44,19 @@ class ScreenshotViewer : public View {
     std::filesystem::path path_{};
 };
 
+class SplashViewer : public View {
+   public:
+    SplashViewer(NavigationView& nav, const std::filesystem::path& path);
+    bool on_key(KeyEvent key) override;
+    void paint(Painter& painter) override;
+    void update_ss(void);
+
+   private:
+    NavigationView& nav_;
+    std::filesystem::path path_{};
+    bool valid_image{};
+};
+
 }  // namespace ui
 
 #endif  // __UI_SS_VIEWER_H__

firmware/application/apps/ui_text_editor.cpp

@@ -42,10 +42,9 @@ namespace ui {
 /* TextViewer *******************************************************/
 
 TextViewer::TextViewer(Rect parent_rect)
-    : Widget(parent_rect),
-      max_line{static_cast<uint8_t>(parent_rect.height() / char_height)},
-      max_col{static_cast<uint8_t>(parent_rect.width() / char_width)} {
+    : Widget(parent_rect) {
     set_focusable(true);
+    set_font_zoom(false);
 }
 
 void TextViewer::paint(Painter& painter) {
@@ -138,6 +137,16 @@ uint32_t TextViewer::offset() const {
     return 0;
 }
 
+void TextViewer::cursor_home() {
+    cursor_.col = 0;
+    redraw();
+}
+
+void TextViewer::cursor_end() {
+    cursor_.col = line_length() - 1;
+    redraw();
+}
+
 uint16_t TextViewer::line_length() {
     return file_->line_length(cursor_.line);
 }
@@ -158,18 +167,14 @@ bool TextViewer::apply_scrolling_constraints(int16_t delta_line, int16_t delta_c
         ++new_line;
     }
 
-    // Snap to first/last to make navigating easier.
-    if (new_line < 0 && new_col > 0) {
+    // Snap to first/last line to make navigating easier.
+    if (new_line < 0 && cursor_.line > 0) {
         new_line = 0;
-        new_col = 0;
     } else if (new_line >= (int32_t)file_->line_count()) {
         auto last_line = file_->line_count() - 1;
-        int32_t last_col = file_->line_length(last_line) - 1;
 
-        if (new_col < last_col) {
+        if (cursor_.line < last_line)
             new_line = last_line;
-            new_col = last_col;
-        }
     }
 
     if (new_line < 0 || (uint32_t)new_line >= file_->line_count())
@@ -177,7 +182,6 @@ bool TextViewer::apply_scrolling_constraints(int16_t delta_line, int16_t delta_c
 
     new_line_length = file_->line_length(new_line);
 
-    // TODO: don't wrap with encoder?
     // Wrap or clamp column.
     if (new_line_length == 0)
         new_col = 0;
@@ -207,7 +211,7 @@ void TextViewer::paint_text(Painter& painter, uint32_t line, uint16_t col) {
         if (result && *result > 0)
             painter.draw_string(
                 {0, r.top() + (int)i * char_height},
-                Styles::white_small, {buffer, *result});
+                style(), {buffer, *result});
 
         // Clear empty line sections. This is less visually jarring than full clear.
         int32_t clear_width = max_col - (result ? *result : 0);
@@ -216,7 +220,7 @@ void TextViewer::paint_text(Painter& painter, uint32_t line, uint16_t col) {
                 {(max_col - clear_width) * char_width,
                  r.top() + (int)i * char_height,
                  clear_width * char_width, char_height},
-                Styles::white_small.background);
+                style().background);
     }
 }
 
@@ -237,8 +241,8 @@ void TextViewer::paint_cursor(Painter& painter) {
     };
 
     // Clear old cursor. CONSIDER: XOR cursor?
-    draw_cursor(paint_state_.line, paint_state_.col, Styles::white_small.background);
-    draw_cursor(cursor_.line, cursor_.col, Styles::white_small.foreground);
+    draw_cursor(paint_state_.line, paint_state_.col, style().background);
+    draw_cursor(cursor_.line, cursor_.col, style().foreground);
     paint_state_.line = cursor_.line;
     paint_state_.col = cursor_.col;
 }
@@ -252,6 +256,15 @@ void TextViewer::reset_file(FileWrapper* file) {
     redraw(true);
 }
 
+void TextViewer::set_font_zoom(bool zoom) {
+    font_zoom = zoom;
+    font_style = font_zoom ? &Styles::white : &Styles::white_small;
+    char_height = style().font.line_height();
+    char_width = style().font.char_width();
+    max_line = (uint8_t)(parent_rect().height() / char_height);
+    max_col = (uint8_t)(parent_rect().width() / char_width);
+}
+
 /* TextEditorMenu ***************************************************/
 
 TextEditorMenu::TextEditorMenu()
@@ -259,9 +272,9 @@ TextEditorMenu::TextEditorMenu()
     add_children(
         {
             &rect_frame,
-            &button_cut,
-            &button_paste,
-            &button_copy,
+            &button_home,
+            &button_end,
+            &button_zoom,
             &button_delline,
             &button_edit,
             &button_addline,
@@ -310,14 +323,20 @@ TextEditorView::TextEditorView(NavigationView& nav)
     };
 
     menu.hidden(true);
-    menu.on_cut() = [this]() {
-        show_nyi();
+    menu.on_home() = [this]() {
+        viewer.cursor_home();
+        hide_menu(true);
     };
-    menu.on_paste() = [this]() {
-        show_nyi();
+
+    menu.on_end() = [this]() {
+        viewer.cursor_end();
+        hide_menu(true);
     };
-    menu.on_copy() = [this]() {
-        show_nyi();
+
+    menu.on_zoom() = [this]() {
+        viewer.toggle_font_zoom();
+        refresh_ui();
+        hide_menu(true);
     };
 
     menu.on_delete_line() = [this]() {
@@ -490,10 +509,6 @@ void TextEditorView::show_edit_line() {
     });
 }
 
-void TextEditorView::show_nyi() {
-    nav_.display_modal("Soon...", "Coming soon.");
-}
-
 void TextEditorView::show_save_prompt(std::function<void()> continuation) {
     if (!file_dirty_) {
         if (continuation)

firmware/application/apps/ui_text_editor.hpp

@@ -72,15 +72,23 @@ class TextViewer : public Widget {
     uint32_t col() const { return cursor_.col; }
     uint32_t offset() const;
 
+    void cursor_home();
+    void cursor_end();
+
     // Gets the length of the current line.
     uint16_t line_length();
 
-   private:
-    static constexpr int8_t char_width = 5;
-    static constexpr int8_t char_height = 8;
+    const Style& style() { return *font_style; }
+    void set_font_zoom(bool zoom);
+    void toggle_font_zoom() { set_font_zoom(!font_zoom); };
 
-    const uint8_t max_line = 32;
-    const uint8_t max_col = 48;
+   private:
+    bool font_zoom{};
+    const Style* font_style{};
+    int8_t char_width{};
+    int8_t char_height{};
+    uint8_t max_line{};
+    uint8_t max_col{};
 
     /* Returns true if the cursor was updated. */
     bool apply_scrolling_constraints(
@@ -120,14 +128,12 @@ class TextEditorMenu : public View {
     void on_show() override;
     void on_hide() override;
 
-    std::function<void()>& on_cut() { return button_cut.on_select; }
-    std::function<void()>& on_paste() { return button_paste.on_select; }
-    std::function<void()>& on_copy() { return button_copy.on_select; }
-
+    std::function<void()>& on_home() { return button_home.on_select; }
+    std::function<void()>& on_end() { return button_end.on_select; }
+    std::function<void()>& on_zoom() { return button_zoom.on_select; }
     std::function<void()>& on_delete_line() { return button_delline.on_select; }
     std::function<void()>& on_edit_line() { return button_edit.on_select; }
     std::function<void()>& on_add_line() { return button_addline.on_select; }
-
     std::function<void()>& on_open() { return button_open.on_select; }
     std::function<void()>& on_save() { return button_save.on_select; }
     std::function<void()>& on_exit() { return button_exit.on_select; }
@@ -139,23 +145,23 @@ class TextEditorMenu : public View {
         {0 * 8, 0 * 8, 23 * 8, 23 * 8},
         Color::dark_grey()};
 
-    NewButton button_cut{
+    NewButton button_home{
         {1 * 8, 1 * 8, 7 * 8, 7 * 8},
-        "Cut",
-        &bitmap_icon_cut,
+        "Home",
+        &bitmap_arrow_left,
         Color::dark_grey()};
 
-    NewButton button_paste{
+    NewButton button_end{
         {8 * 8, 1 * 8, 7 * 8, 7 * 8},
-        "Paste",
-        &bitmap_icon_paste,
+        "End",
+        &bitmap_arrow_right,
         Color::dark_grey()};
 
-    NewButton button_copy{
+    NewButton button_zoom{
         {15 * 8, 1 * 8, 7 * 8, 7 * 8},
-        "Copy",
-        &bitmap_icon_copy,
-        Color::dark_grey()};
+        "Zoom",
+        &bitmap_icon_search,
+        Color::orange()};
 
     NewButton button_delline{
         {1 * 8, 8 * 8, 7 * 8, 7 * 8},
@@ -220,7 +226,6 @@ class TextEditorView : public View {
     void hide_menu(bool hidden = true);
     void show_file_picker(bool immediate = true);
     void show_edit_line();
-    void show_nyi();
     void show_save_prompt(std::function<void()> continuation);
 
     void prepare_for_write();
@@ -258,4 +263,4 @@ class TextEditorView : public View {
 
 }  // namespace ui
 
-#endif  // __UI_TEXT_EDITOR_H__
+#endif  // __UI_TEXT_EDITOR_H__

firmware/application/apps/ui_whipcalc.cpp

@@ -23,8 +23,10 @@
 #include "ui_whipcalc.hpp"
 
 #include "ch.h"
-#include "portapack.hpp"
+#include "convert.hpp"
 #include "event_m0.hpp"
+#include "file_reader.hpp"
+#include "portapack.hpp"
 
 #include <cstring>
 
@@ -113,28 +115,12 @@ WhipCalcView::WhipCalcView(NavigationView& nav)
                   &console,
                   &button_exit});
 
-    File antennas_file;
-    auto error = antennas_file.open("WHIPCALC/ANTENNAS.TXT");
-
-    if (!error.is_valid()) {
-        std::string line;
-        char one_char[1];
-        for (size_t pointer = 0; pointer < antennas_file.size(); pointer++) {
-            antennas_file.seek(pointer);
-            antennas_file.read(one_char, 1);
-            if ((int)one_char[0] >= ' ')
-                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 ?
-    }
+    // Try loading antennas from file.
+    load_antenna_db();
 
     if (!antenna_db.size())
         add_default_antenna();
+
     // antennas_on_memory.set(to_string_dec_int(antenna_db.size(),0) + " antennas");	//tell user
 
     options_type.set_selected_index(2);  // Quarter wave
@@ -151,40 +137,42 @@ WhipCalcView::WhipCalcView(NavigationView& nav)
         nav.pop();
     };
 
-    field_frequency.set_value(transmitter_model.target_frequency());
+    update_result();
 }
 
-void ui::WhipCalcView::txtline_process(std::string& line) {
-    if (line.find("#") != std::string::npos)
-        return;  // Line is just a comment
+void WhipCalcView::load_antenna_db() {
+    File antennas_file;
+    auto error = antennas_file.open("/WHIPCALC/ANTENNAS.TXT");
 
-    char separator = ',';
-    size_t previous = 0;
-    uint16_t value = 0;
-    antenna_entry new_antenna;
-    size_t current = line.find(separator);
+    if (error)
+        return;
 
-    while (current != std::string::npos) {
-        if (!previous)
-            new_antenna.label.assign(line, 0, current);  // antenna label
-        else {
-            value = std::stoi(line.substr(previous, current - previous));
-            if (!value) return;                     // No element length? abort antenna
-            new_antenna.elements.push_back(value);  // Store this new element
+    auto reader = FileLineReader(antennas_file);
+    for (const auto& line : reader) {
+        if (line.length() == 0 || line[0] == '#')
+            continue;  // Empty or comment line.
+
+        auto cols = split_string(line, ',');
+        if (cols.size() < 2)
+            continue;  // Line doesn't have enough columns.
+
+        antenna_entry new_antenna{
+            std::string{cols[0]}};
+
+        // Add antenna elements.
+        for (auto i = 1ul; i < cols.size(); ++i) {
+            uint16_t length = 0;
+            if (parse_int(cols[i], length)) {
+                new_antenna.elements.push_back(length);
+            }
         }
-        previous = current + 1;
-        current = line.find(separator, previous);  // Search for next space delimiter
+
+        if (!new_antenna.elements.empty())
+            antenna_db.push_back(std::move(new_antenna));
     }
-
-    if (!previous) return;                                         // Not even a label ? drop this antenna!
-    value = std::stoi(line.substr(previous, current - previous));  // Last element
-
-    if (!value) return;
-    new_antenna.elements.push_back(value);
-    antenna_db.push_back(new_antenna);  // Add this antenna
 }
 
-void ui::WhipCalcView::add_default_antenna() {
+void WhipCalcView::add_default_antenna() {
     antenna_db.push_back({"ANT500", {185, 315, 450, 586, 724, 862}});  // store a default ant500
 }
 }  // namespace ui

firmware/application/apps/ui_whipcalc.hpp

@@ -51,8 +51,7 @@ class WhipCalcView : public View {
     NavigationView& nav_;
     std::vector<antenna_entry> antenna_db{};
     void update_result();
-    uint16_t string_to_number(std::string);
-    void txtline_process(std::string&);
+    void load_antenna_db();
     void add_default_antenna();
 
     Labels labels{
@@ -63,8 +62,7 @@ class WhipCalcView : public View {
 
     TxFrequencyField field_frequency{
         {13 * 8, 1 * 16},
-        nav_,
-        false};
+        nav_};
 
     OptionsField options_type{
         {13 * 8, 2 * 16},

firmware/application/audio.cpp

@@ -184,6 +184,9 @@ void speaker_unmute() {
 
 void update_audio_mute() {
     cfg_speaker_disable = portapack::persistent_memory::config_speaker_disable();
+    if (cfg_speaker_disable) {
+        audio_codec->speaker_disable();
+    }
 
     if (portapack::persistent_memory::config_audio_mute())
         speaker_mute();
@@ -269,4 +272,8 @@ void set_rate(const Rate rate) {
     clock_manager.set_base_audio_clock_divider(toUType(rate));
 }
 
+bool speaker_disable_supported() {
+    return audio_codec->speaker_disable_supported();
+}
+
 } /* namespace audio */

firmware/application/audio.hpp

@@ -43,6 +43,7 @@ class Codec {
 
     virtual void speaker_enable() = 0;
     virtual void speaker_disable() = 0;
+    virtual bool speaker_disable_supported() const = 0;
 
     virtual void headphone_enable() = 0;
     virtual void headphone_disable() = 0;
@@ -107,6 +108,7 @@ size_t reg_bits();
 
 void init(audio::Codec* const codec);
 void shutdown();
+bool speaker_disable_supported();
 
 enum class Rate {
     Hz_12000 = 4,

firmware/application/bitmap.hpp

@@ -3819,6 +3819,44 @@ static constexpr Bitmap bitmap_icon_looking{
     {16, 16},
     bitmap_icon_looking_data};
 
+static constexpr uint8_t bitmap_icon_add_data[] = {
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x80,
+    0x01,
+    0x80,
+    0x01,
+    0x80,
+    0x01,
+    0x80,
+    0x01,
+    0xF8,
+    0x1F,
+    0xF8,
+    0x1F,
+    0x80,
+    0x01,
+    0x80,
+    0x01,
+    0x80,
+    0x01,
+    0x80,
+    0x01,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+};
+static constexpr Bitmap bitmap_icon_add{
+    {16, 16},
+    bitmap_icon_add_data};
+
 static constexpr uint8_t bitmap_icon_delete_data[] = {
     0x00,
     0x00,
@@ -5341,6 +5379,234 @@ static constexpr Bitmap bitmap_icon_new_dir{
     {16, 16},
     bitmap_icon_new_dir_data};
 
+static constexpr uint8_t bitmap_icon_paint_data[] = {
+    0xFE,
+    0x3F,
+    0xFF,
+    0x3F,
+    0xFF,
+    0xFF,
+    0xFF,
+    0xBF,
+    0xFE,
+    0xBF,
+    0x00,
+    0x80,
+    0x80,
+    0xFF,
+    0x80,
+    0x00,
+    0x80,
+    0x00,
+    0xC0,
+    0x01,
+    0xC0,
+    0x01,
+    0xC0,
+    0x01,
+    0xC0,
+    0x01,
+    0xC0,
+    0x01,
+    0xC0,
+    0x01,
+    0xC0,
+    0x01,
+};
+static constexpr Bitmap bitmap_icon_paint{
+    {16, 16},
+    bitmap_icon_paint_data};
+
+static constexpr uint8_t bitmap_icon_touchtunes_data[] = {
+    0xE0,
+    0x07,
+    0x30,
+    0x0C,
+    0x7C,
+    0x3E,
+    0xC4,
+    0x23,
+    0x26,
+    0x64,
+    0x12,
+    0x48,
+    0x0F,
+    0xF3,
+    0x09,
+    0x95,
+    0x0F,
+    0xF1,
+    0x09,
+    0x91,
+    0x0F,
+    0xF1,
+    0xC9,
+    0x91,
+    0xE9,
+    0x91,
+    0xC9,
+    0x90,
+    0x0F,
+    0xF0,
+    0xFF,
+    0xFF,
+};
+static constexpr Bitmap bitmap_icon_touchtunes{
+    {16, 16},
+    bitmap_icon_touchtunes_data};
+
+static constexpr uint8_t bitmap_arrow_left_data[] = {
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x20,
+    0x00,
+    0x30,
+    0x00,
+    0x38,
+    0x00,
+    0xFC,
+    0x7F,
+    0xFE,
+    0x7F,
+    0xFC,
+    0x7F,
+    0x38,
+    0x00,
+    0x30,
+    0x00,
+    0x20,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+};
+static constexpr Bitmap bitmap_arrow_left{
+    {16, 16},
+    bitmap_arrow_left_data};
+
+static constexpr uint8_t bitmap_arrow_right_data[] = {
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x04,
+    0x00,
+    0x0C,
+    0x00,
+    0x1C,
+    0xFE,
+    0x3F,
+    0xFE,
+    0x7F,
+    0xFE,
+    0x3F,
+    0x00,
+    0x1C,
+    0x00,
+    0x0C,
+    0x00,
+    0x04,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+    0x00,
+};
+static constexpr Bitmap bitmap_arrow_right{
+    {16, 16},
+    bitmap_arrow_right_data};
+
+static constexpr uint8_t bitmap_icon_speaker_and_headphones_data[] = {
+    0x20,
+    0x10,
+    0x30,
+    0x20,
+    0x38,
+    0x44,
+    0x3E,
+    0x48,
+    0x3E,
+    0x91,
+    0x3E,
+    0x92,
+    0x38,
+    0x92,
+    0x30,
+    0x92,
+    0x20,
+    0x92,
+    0x00,
+    0x92,
+    0x30,
+    0x91,
+    0x48,
+    0x48,
+    0x84,
+    0x44,
+    0x84,
+    0x20,
+    0x86,
+    0x11,
+    0x86,
+    0x01,
+};
+static constexpr Bitmap bitmap_icon_speaker_and_headphones{
+    {16, 16},
+    bitmap_icon_speaker_and_headphones_data};
+
+static constexpr uint8_t bitmap_icon_speaker_and_headphones_mute_data[] = {
+    0x40,
+    0x00,
+    0x60,
+    0x44,
+    0x70,
+    0x6C,
+    0x7C,
+    0x38,
+    0x7C,
+    0x10,
+    0x7C,
+    0x38,
+    0x70,
+    0x6C,
+    0x60,
+    0x44,
+    0x40,
+    0x00,
+    0x00,
+    0x44,
+    0x30,
+    0x6C,
+    0x48,
+    0x38,
+    0x84,
+    0x10,
+    0x84,
+    0x38,
+    0x86,
+    0x6D,
+    0x86,
+    0x45,
+};
+static constexpr Bitmap bitmap_icon_speaker_and_headphones_mute{
+    {16, 16},
+    bitmap_icon_speaker_and_headphones_mute_data};
+
 } /* namespace ui */
 
 #endif /*__BITMAP_HPP__*/

firmware/application/file.cpp

@@ -252,12 +252,9 @@ std::filesystem::path next_filename_matching_pattern(const std::filesystem::path
 std::vector<std::filesystem::path> scan_root_files(const std::filesystem::path& directory,
                                                    const std::filesystem::path& extension) {
     std::vector<std::filesystem::path> file_list{};
-
-    for (const auto& entry : std::filesystem::directory_iterator(directory, extension)) {
-        if (std::filesystem::is_regular_file(entry.status())) {
-            file_list.push_back(entry.path());
-        }
-    }
+    scan_root_files(directory, extension, [&file_list](const std::filesystem::path& p) {
+        file_list.push_back(p);
+    });
 
     return file_list;
 }
@@ -287,7 +284,7 @@ std::filesystem::filesystem_error rename_file(
 std::filesystem::filesystem_error copy_file(
     const std::filesystem::path& file_path,
     const std::filesystem::path& dest_path) {
-    // Decent compromise between memory and speed.
+    // 512 seems to be the largest block size FatFS likes.
     constexpr size_t buffer_size = 512;
     uint8_t buffer[buffer_size];
     File src;
@@ -324,10 +321,11 @@ FATTimestamp file_created_date(const std::filesystem::path& file_path) {
 std::filesystem::filesystem_error make_new_file(
     const std::filesystem::path& file_path) {
     File f;
-    auto result = f.create(file_path);
-    return result.is_valid()
-               ? result.value()
-               : std::filesystem::filesystem_error{};
+    auto error = f.create(file_path);
+    if (error)
+        return *error;
+
+    return {};
 }
 
 std::filesystem::filesystem_error make_new_directory(
@@ -488,14 +486,31 @@ path operator/(const path& lhs, const path& rhs) {
     return result;
 }
 
+bool path_iequal(
+    const path& lhs,
+    const path& rhs) {
+    const auto& lhs_str = lhs.native();
+    const auto& rhs_str = rhs.native();
+
+    // NB: Not correct for Unicode/locales.
+    if (lhs_str.length() == rhs_str.length()) {
+        for (size_t i = 0; i < lhs_str.length(); ++i)
+            if (towupper(lhs_str[i]) != towupper(rhs_str[i]))
+                return false;
+
+        return true;
+    }
+
+    return false;
+}
+
 directory_iterator::directory_iterator(
-    std::filesystem::path path,
-    std::filesystem::path wild)
-    : pattern{wild} {
+    const std::filesystem::path& path,
+    const std::filesystem::path& wild)
+    : path_{path}, wild_{wild} {
     impl = std::make_shared<Impl>();
-    const auto result = f_findfirst(&impl->dir, &impl->filinfo,
-                                    reinterpret_cast<const TCHAR*>(path.c_str()),
-                                    reinterpret_cast<const TCHAR*>(pattern.c_str()));
+    auto result = f_findfirst(&impl->dir, &impl->filinfo,
+                              path_.tchar(), wild_.tchar());
     if (result != FR_OK || impl->filinfo.fname[0] == (TCHAR)'\0') {
         impl.reset();
         // TODO: Throw exception if/when I enable exceptions...

firmware/application/file.hpp

@@ -76,36 +76,30 @@ struct path {
         : _s{} {
     }
 
-    path(
-        const path& p)
+    path(const path& p)
         : _s{p._s} {
     }
 
-    path(
-        path&& p)
+    path(path&& p)
         : _s{std::move(p._s)} {
     }
 
     template <class Source>
-    path(
-        const Source& source)
+    path(const Source& source)
         : path{std::begin(source), std::end(source)} {
     }
 
     template <class InputIt>
-    path(
-        InputIt first,
-        InputIt last)
+    path(InputIt first,
+         InputIt last)
         : _s{first, last} {
     }
 
-    path(
-        const char16_t* const s)
+    path(const char16_t* const s)
         : _s{s} {
     }
 
-    path(
-        const TCHAR* const s)
+    path(const TCHAR* const s)
         : _s{reinterpret_cast<const std::filesystem::path::value_type*>(s)} {
     }
 
@@ -132,6 +126,10 @@ struct path {
         return native().c_str();
     }
 
+    const TCHAR* tchar() const {
+        return reinterpret_cast<const TCHAR*>(native().c_str());
+    }
+
     const string_type& native() const {
         return _s;
     }
@@ -149,7 +147,7 @@ struct path {
     }
 
     path& operator/=(const path& p) {
-        if (_s.back() != preferred_separator)
+        if (_s.back() != preferred_separator && p._s.front() != preferred_separator)
             _s += preferred_separator;
         _s += p._s;
         return *this;
@@ -168,6 +166,9 @@ bool operator>(const path& lhs, const path& rhs);
 path operator+(const path& lhs, const path& rhs);
 path operator/(const path& lhs, const path& rhs);
 
+/* Case insensitive path equality on underlying "native" string. */
+bool path_iequal(const path& lhs, const path& rhs);
+
 using file_status = BYTE;
 
 static_assert(sizeof(path::value_type) == 2, "sizeof(std::filesystem::path::value_type) != 2");
@@ -204,7 +205,8 @@ class directory_iterator {
     };
 
     std::shared_ptr<Impl> impl{};
-    const path pattern{};
+    std::filesystem::path path_{};
+    std::filesystem::path wild_{};
 
     friend bool operator!=(const directory_iterator& lhs, const directory_iterator& rhs);
 
@@ -216,7 +218,8 @@ class directory_iterator {
     using iterator_category = std::input_iterator_tag;
 
     directory_iterator() noexcept {};
-    directory_iterator(std::filesystem::path path, std::filesystem::path wild);
+    directory_iterator(const std::filesystem::path& path,
+                       const std::filesystem::path& wild);
 
     ~directory_iterator() {}
 
@@ -263,6 +266,13 @@ std::filesystem::filesystem_error make_new_file(const std::filesystem::path& fil
 std::filesystem::filesystem_error make_new_directory(const std::filesystem::path& dir_path);
 std::filesystem::filesystem_error ensure_directory(const std::filesystem::path& dir_path);
 
+template <typename TCallback>
+void scan_root_files(const std::filesystem::path& directory, const std::filesystem::path& extension, const TCallback& fn) {
+    for (const auto& entry : std::filesystem::directory_iterator(directory, extension)) {
+        if (std::filesystem::is_regular_file(entry.status()))
+            fn(entry.path());
+    }
+}
 std::vector<std::filesystem::path> scan_root_files(const std::filesystem::path& directory, const std::filesystem::path& extension);
 std::vector<std::filesystem::path> scan_root_directories(const std::filesystem::path& directory);
 

firmware/application/file_reader.hpp

@@ -36,7 +36,8 @@
  */
 
 /* Iterates lines in buffer split on '\n'.
- * NB: very basic iterator impl, don't try anything fancy with it. */
+ * NB: very basic iterator impl, don't try anything fancy with it.
+ * For example, you _must_ deref the iterator after advancing it. */
 template <typename BufferType>
 class BufferLineReader {
    public:
@@ -133,4 +134,18 @@ using FileLineReader = BufferLineReader<File>;
  * are used or they will dangle. */
 std::vector<std::string_view> split_string(std::string_view str, char c);
 
+/* Returns the number of lines in a file. */
+template <typename BufferType>
+uint32_t count_lines(BufferLineReader<BufferType>& reader) {
+    uint32_t count = 0;
+    auto it = reader.begin();
+
+    do {
+        *it;  // Necessary to force the file read.
+        ++count;
+    } while (++it != reader.end());
+
+    return count;
+}
+
 #endif

firmware/application/file_wrapper.hpp

@@ -59,6 +59,7 @@ class BufferWrapper {
     using Offset = uint32_t;
     using Line = uint32_t;
     using Column = uint32_t;
+    using Size = File::Size;
     using Range = struct {
         // Offset of the start, inclusive.
         Offset start;
@@ -108,7 +109,7 @@ class BufferWrapper {
     }
 
     /* Gets the size of the buffer in bytes. */
-    File::Size size() const { return wrapped_->size(); }
+    Size size() const { return wrapped_->size(); }
 
     /* Get the count of the lines in the buffer. */
     uint32_t line_count() const { return line_count_; }

firmware/application/freqman.cpp

@@ -2,6 +2,7 @@
  * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
  * Copyright (C) 2016 Furrtek
  * Copyright (C) 2023 gullradriel, Nilorea Studio Inc.
+ * Copyright (C) 2023 Kyle Reed
  *
  * This file is part of PortaPack.
  *
@@ -21,431 +22,94 @@
  * Boston, MA 02110-1301, USA.
  */
 
+#include "file.hpp"
 #include "freqman.hpp"
+#include "tone_key.hpp"
+#include "ui_widget.hpp"
+
 #include <algorithm>
 
+namespace fs = std::filesystem;
+using namespace tonekey;
+using namespace ui;
+
 using option_t = std::pair<std::string, int32_t>;
 using options_t = std::vector<option_t>;
 
-options_t freqman_entry_modulations = {
-    {"AM", 0},
-    {"NFM", 1},
-    {"WFM", 2}};
+extern options_t freqman_modulations;
+extern options_t freqman_bandwidths[4];
+extern options_t freqman_steps;
+extern options_t freqman_steps_short;
 
-options_t freqman_entry_bandwidths[4] = {
-    {// AM
-     {"DSB 9k", 0},
-     {"DSB 6k", 1},
-     {"USB+3k", 2},
-     {"LSB-3k", 3},
-     {"CW", 4}},
-    {// NFM
-     {"8k5", 0},
-     {"11k", 1},
-     {"16k", 2}},
-    {
-        // WFM
-        {"40k", 2},
-        {"180k", 1},
-        {"200k", 0},
-    }};
+extern const option_t* find_by_index(const options_t& options, freqman_index_t index);
 
-options_t freqman_entry_steps = {
-    {"0.1kHz      ", 100},
-    {"1kHz        ", 1000},
-    {"5kHz (SA AM)", 5000},
-    {"6.25kHz(NFM)", 6250},
-    {"8.33kHz(AIR)", 8330},
-    {"9kHz (EU AM)", 9000},
-    {"10kHz(US AM)", 10000},
-    {"12.5kHz(NFM)", 12500},
-    {"15kHz  (HFM)", 15000},
-    {"25kHz   (N1)", 25000},
-    {"30kHz (OIRT)", 30000},
-    {"50kHz  (FM1)", 50000},
-    {"100kHz (FM2)", 100000},
-    {"250kHz  (N2)", 250000},
-    {"500kHz (WFM)", 500000},
-    {"1MHz        ", 1000000}};
-
-options_t freqman_entry_steps_short = {
-    {"0.1kHz", 100},
-    {"1kHz", 1000},
-    {"5kHz", 5000},
-    {"6.25kHz", 6250},
-    {"8.33kHz", 8330},
-    {"9kHz", 9000},
-    {"10kHz", 10000},
-    {"12.5kHz", 12500},
-    {"15kHz", 15000},
-    {"25kHz", 25000},
-    {"30kHz", 30000},
-    {"50kHz", 50000},
-    {"100kHz", 100000},
-    {"250kHz", 250000},
-    {"500kHz", 500000},
-    {"1MHz", 1000000}};
-
-bool load_freqman_file(std::string& file_stem, freqman_db& db) {
-    return load_freqman_file_ex(file_stem, db, true, true, true, FREQMAN_MAX_PER_FILE);
+// TODO: remove in favor of FreqmanDB
+/* Freqman file handling. */
+bool load_freqman_file(const std::string& file_stem, freqman_db& db, freqman_load_options options) {
+    return parse_freqman_file(get_freqman_path(file_stem), db, options);
 }
 
-bool load_freqman_file_ex(std::string& file_stem, freqman_db& db, bool load_freqs, bool load_ranges, bool load_hamradios, uint8_t max_num_freqs = FREQMAN_MAX_PER_FILE) {
-    // swap with empty vector to ensure memory is immediately released
-    std::vector<freqman_entry>().swap(db);
+bool delete_freqman_file(const std::string& file_stem) {
+    delete_file(get_freqman_path(file_stem));
+    return true;
+}
+
+bool save_freqman_file(const std::string& file_stem, freqman_db& db) {
+    auto path = get_freqman_path(file_stem);
+    delete_file(path);
 
     File freqman_file;
-    size_t length, n = 0, file_position = 0;
-    char* pos;
-    char* line_start;
-    char* line_end;
-    std::string description;
-    rf::Frequency frequency_a, frequency_b;
-    char file_data[FREQMAN_READ_BUF_SIZE + 1];
-    freqman_entry_type type;
-    freqman_index_t modulation = 0;
-    freqman_index_t bandwidth = 0;
-    freqman_index_t step = 0;
-    freqman_index_t tone = 0;
-
-    auto result = freqman_file.open("FREQMAN/" + file_stem + ".TXT");
-    if (result.is_valid())
+    auto error = freqman_file.create(path);
+    if (error)
         return false;
 
-    while (1) {
-        // Read a FREQMAN_READ_BUF_SIZE block from file
-        freqman_file.seek(file_position);
-
-        memset(file_data, 0, FREQMAN_READ_BUF_SIZE + 1);
-        auto read_size = freqman_file.read(file_data, FREQMAN_READ_BUF_SIZE);
-        if (read_size.is_error())
-            return false;  // Read error
-
-        file_position += FREQMAN_READ_BUF_SIZE;
-
-        // Reset line_start to beginning of buffer
-        line_start = file_data;
-
-        // If EOF reached, insert 0x0A after, in case the last line doesn't have a C/R
-        if (read_size.value() < FREQMAN_READ_BUF_SIZE)
-            *(line_start + read_size.value()) = 0x0A;
-
-        // Look for complete lines in buffer
-        while ((line_end = strstr(line_start, "\x0A"))) {
-            *line_end = 0;  // Stop strstr() searches below at EOL
-            modulation = -1;
-            bandwidth = -1;
-            step = -1;
-            tone = -1;
-            type = ERROR_TYPE;
-
-            frequency_a = frequency_b = 0;
-            // Read frequency
-            pos = strstr(line_start, "f=");
-            if (pos) {
-                pos += 2;
-                frequency_a = strtoll(pos, nullptr, 10);
-                type = SINGLE;
-            } else {
-                // ...or range
-                pos = strstr(line_start, "a=");
-                if (pos) {
-                    pos += 2;
-                    frequency_a = strtoll(pos, nullptr, 10);
-                    type = RANGE;
-                    pos = strstr(line_start, "b=");
-                    if (pos) {
-                        pos += 2;
-                        frequency_b = strtoll(pos, nullptr, 10);
-                    } else
-                        frequency_b = 0;
-                } else {
-                    // ... or hamradio
-                    pos = strstr(line_start, "r=");
-                    if (pos) {
-                        pos += 2;
-                        frequency_a = strtoll(pos, nullptr, 10);
-                        type = HAMRADIO;
-                        pos = strstr(line_start, "t=");
-                        if (pos) {
-                            pos += 2;
-                            frequency_b = strtoll(pos, nullptr, 10);
-                        } else
-                            frequency_b = frequency_a;
-                    } else
-                        frequency_a = 0;
-                }
-            }
-            // modulation if any
-            pos = strstr(line_start, "m=");
-            if (pos) {
-                pos += 2;
-                modulation = freqman_entry_get_modulation_from_str(pos);
-            }
-            // bandwidth if any
-            pos = strstr(line_start, "bw=");
-            if (pos) {
-                pos += 3;
-                bandwidth = freqman_entry_get_bandwidth_from_str(modulation, pos);
-            }
-            // step if any
-            pos = strstr(line_start, "s=");
-            if (pos) {
-                pos += 2;
-                step = freqman_entry_get_step_from_str_short(pos);
-            }
-            // ctcss tone if any
-            /* disabled until better form
-               pos = strstr(line_start, "c=");
-               if (pos) {
-               pos += 2;
-               tone = tone_key_index_by_value( strtoll( pos , nullptr , 10 ) );
-               } */
-            // Read description until , or LF
-            pos = strstr(line_start, "d=");
-            if (pos) {
-                pos += 2;
-                length = std::min(strcspn(pos, ",\x0A"), (size_t)FREQMAN_DESC_MAX_LEN);
-                description = string(pos, length);
-            }
-            if ((type == SINGLE && load_freqs) || (type == RANGE && load_ranges) || (type == HAMRADIO && load_hamradios)) {
-                db.push_back({frequency_a, frequency_b, description, type, modulation, bandwidth, step, tone});
-                n++;
-                if (n > max_num_freqs) return true;
-            }
-
-            line_start = line_end + 1;
-            if (line_start - file_data >= FREQMAN_READ_BUF_SIZE) break;
-        }
-
-        if (read_size.value() != FREQMAN_READ_BUF_SIZE)
-            break;  // End of file
-
-        // Restart at beginning of last incomplete line
-        file_position -= (file_data + FREQMAN_READ_BUF_SIZE - line_start);
-    }
-
-    /* populate implicitly specified modulation / bandwidth */
-    if (db.size() > 2) {
-        modulation = db[0].modulation;
-        bandwidth = db[0].bandwidth;
-
-        for (unsigned int it = 1; it < db.size(); it++) {
-            if (db[it].modulation < 0) {
-                db[it].modulation = modulation;
-            } else {
-                modulation = db[it].modulation;
-            }
-            if (db[it].bandwidth < 0) {
-                db[it].bandwidth = bandwidth;
-            } else {
-                modulation = db[it].bandwidth;
-            }
-        }
-    }
-    return true;
-}
-
-bool get_freq_string(freqman_entry& entry, std::string& item_string) {
-    rf::Frequency frequency_a, frequency_b;
-
-    frequency_a = entry.frequency_a;
-    if (entry.type == SINGLE) {
-        // Single
-        item_string = "f=" + to_string_dec_uint(frequency_a / 1000) + to_string_dec_uint(frequency_a % 1000UL, 3, '0');
-    } else if (entry.type == RANGE) {
-        // Range
-        frequency_b = entry.frequency_b;
-        item_string = "a=" + to_string_dec_uint(frequency_a / 1000) + to_string_dec_uint(frequency_a % 1000UL, 3, '0');
-        item_string += ",b=" + to_string_dec_uint(frequency_b / 1000) + to_string_dec_uint(frequency_b % 1000UL, 3, '0');
-        if (entry.step >= 0) {
-            item_string += ",s=" + freqman_entry_get_step_string_short(entry.step);
-        }
-    } else if (entry.type == HAMRADIO) {
-        frequency_b = entry.frequency_b;
-        item_string = "r=" + to_string_dec_uint(frequency_a / 1000) + to_string_dec_uint(frequency_a % 1000UL, 3, '0');
-        item_string += ",t=" + to_string_dec_uint(frequency_b / 1000) + to_string_dec_uint(frequency_b % 1000UL, 3, '0');
-        if (entry.tone >= 0) {
-            item_string += ",c=" + tone_key_string(entry.tone);
-        }
-    }
-    if (entry.modulation >= 0 && (unsigned)entry.modulation < freqman_entry_modulations.size()) {
-        item_string += ",m=" + freqman_entry_get_modulation_string(entry.modulation);
-        if (entry.bandwidth >= 0 && (unsigned)entry.bandwidth < freqman_entry_bandwidths[entry.modulation].size()) {
-            item_string += ",bw=" + freqman_entry_get_bandwidth_string(entry.modulation, entry.bandwidth);
-        }
-    }
-    if (entry.description.size())
-        item_string += ",d=" + entry.description;
+    for (size_t n = 0; n < db.size(); n++)
+        freqman_file.write_line(to_freqman_string(*db[n]));
 
     return true;
 }
 
-bool delete_freqman_file(std::string& file_stem) {
-    File freqman_file;
-    std::string freq_file_path = "/FREQMAN/" + file_stem + ".TXT";
-    delete_file(freq_file_path);
-    return false;
-}
-
-bool save_freqman_file(std::string& file_stem, freqman_db& db) {
-    File freqman_file;
-    std::string freq_file_path = "/FREQMAN/" + file_stem + ".TXT";
-    delete_file(freq_file_path);
-    auto result = freqman_file.create(freq_file_path);
-    if (!result.is_valid()) {
-        for (size_t n = 0; n < db.size(); n++) {
-            std::string line;
-            get_freq_string(db[n], line);
-            freqman_file.write_line(line);
-        }
-        return true;
-    }
-    return false;
-}
-
-bool create_freqman_file(std::string& file_stem, File& freqman_file) {
-    auto result = freqman_file.create("FREQMAN/" + file_stem + ".TXT");
-
-    if (result.is_valid())
-        return false;
-
-    return true;
-}
-
-std::string freqman_item_string(freqman_entry& entry, size_t max_length) {
-    std::string item_string;
-
-    switch (entry.type) {
-        case SINGLE:
-            item_string = to_string_short_freq(entry.frequency_a) + "M: " + entry.description;
-            break;
-        case RANGE:
-            item_string = "R: " + entry.description;
-            break;
-        case HAMRADIO:
-            item_string = "H: " + entry.description;
-            break;
-        default:
-            item_string = "!UNKNOW TYPE " + entry.description;
-            break;
-    }
-
-    if (item_string.size() > max_length)
-        return item_string.substr(0, max_length - 3) + "...";
-
-    return item_string;
+bool create_freqman_file(const std::string& file_stem) {
+    auto fs_error = make_new_file(get_freqman_path(file_stem));
+    return fs_error.ok();
 }
 
+/* Set options. */
 void freqman_set_modulation_option(OptionsField& option) {
-    option.set_options(freqman_entry_modulations);
+    option.set_options(freqman_modulations);
 }
 
 void freqman_set_bandwidth_option(freqman_index_t modulation, OptionsField& option) {
-    option.set_options(freqman_entry_bandwidths[modulation]);
+    if (is_valid(modulation))
+        option.set_options(freqman_bandwidths[modulation]);
 }
 
 void freqman_set_step_option(OptionsField& option) {
-    option.set_options(freqman_entry_steps);
+    option.set_options(freqman_steps);
 }
 
 void freqman_set_step_option_short(OptionsField& option) {
-    option.set_options(freqman_entry_steps_short);
-}
-
-std::string freqman_entry_get_modulation_string(freqman_index_t modulation) {
-    if (modulation < 0 || (unsigned)modulation >= freqman_entry_modulations.size()) {
-        return std::string("");  // unknown modulation
-    }
-    return freqman_entry_modulations[modulation].first;
-}
-
-std::string freqman_entry_get_bandwidth_string(freqman_index_t modulation, freqman_index_t bandwidth) {
-    if (modulation < 0 || (unsigned)modulation >= freqman_entry_modulations.size()) {
-        return std::string("");  // unknown modulation
-    }
-    if (bandwidth < 0 || (unsigned)bandwidth > freqman_entry_bandwidths[modulation].size()) {
-        return std::string("");  // unknown modulation
-    }
-    return freqman_entry_bandwidths[modulation][bandwidth].first;
-}
-
-std::string freqman_entry_get_step_string(freqman_index_t step) {
-    if (step < 0 || (unsigned)step >= freqman_entry_steps.size()) {
-        return std::string("");  // unknown modulation
-    }
-    return freqman_entry_steps[step].first;
-}
-
-std::string freqman_entry_get_step_string_short(freqman_index_t step) {
-    if (step < 0 || (unsigned)step >= freqman_entry_steps_short.size()) {
-        return std::string("");  // unknown modulation
-    }
-    return freqman_entry_steps_short[step].first;
+    option.set_options(freqman_steps_short);
 }
 
+/* Option value lookup. */
+// TODO: use Optional instead of magic values.
 int32_t freqman_entry_get_modulation_value(freqman_index_t modulation) {
-    if (modulation < 0 || (unsigned)modulation >= freqman_entry_modulations.size()) {
-        return -1;  // unknown modulation
-    }
-    return freqman_entry_modulations[modulation].second;
+    if (auto opt = find_by_index(freqman_modulations, modulation))
+        return opt->second;
+    return -1;
 }
 
 int32_t freqman_entry_get_bandwidth_value(freqman_index_t modulation, freqman_index_t bandwidth) {
-    if (modulation < 0 || (unsigned)modulation >= freqman_entry_modulations.size()) {
-        return -1;  // unknown modulation
+    if (modulation < freqman_modulations.size()) {
+        if (auto opt = find_by_index(freqman_bandwidths[modulation], bandwidth))
+            return opt->second;
     }
-    if (bandwidth < 0 || (unsigned)bandwidth > freqman_entry_bandwidths[modulation].size()) {
-        return -1;  // unknown bandwidth for modulation
-    }
-    return freqman_entry_bandwidths[modulation][bandwidth].second;
+    return -1;
 }
 
 int32_t freqman_entry_get_step_value(freqman_index_t step) {
-    if (step < 0 || (unsigned)step >= freqman_entry_steps.size()) {
-        return -1;  // unknown modulation
-    }
-    return freqman_entry_steps[step].second;
-}
-
-freqman_index_t freqman_entry_get_modulation_from_str(char* str) {
-    if (!str)
-        return -1;
-    for (freqman_index_t index = 0; (unsigned)index < freqman_entry_modulations.size(); index++) {
-        if (strncmp(freqman_entry_modulations[index].first.c_str(), str, freqman_entry_modulations[index].first.size()) == 0)
-            return index;
-    }
-    return -1;
-}
-
-freqman_index_t freqman_entry_get_bandwidth_from_str(freqman_index_t modulation, char* str) {
-    if (!str)
-        return -1;
-    if (modulation < 0 || (unsigned)modulation >= freqman_entry_modulations.size())
-        return -1;
-    for (freqman_index_t index = 0; (unsigned)index < freqman_entry_bandwidths[modulation].size(); index++) {
-        if (strncmp(freqman_entry_bandwidths[modulation][index].first.c_str(), str, freqman_entry_bandwidths[modulation][index].first.size()) == 0)
-            return index;
-    }
-    return -1;
-}
-
-freqman_index_t freqman_entry_get_step_from_str(char* str) {
-    if (!str)
-        return -1;
-    for (freqman_index_t index = 0; (unsigned)index < freqman_entry_steps.size(); index++) {
-        if (strncmp(freqman_entry_steps[index].first.c_str(), str, freqman_entry_steps[index].first.size()) == 0)
-            return index;
-    }
-    return -1;
-}
-
-freqman_index_t freqman_entry_get_step_from_str_short(char* str) {
-    if (!str)
-        return -1;
-    for (freqman_index_t index = 0; (unsigned)index < freqman_entry_steps_short.size(); index++) {
-        if (strncmp(freqman_entry_steps_short[index].first.c_str(), str, freqman_entry_steps_short[index].first.size()) == 0)
-            return index;
-    }
+    if (auto opt = find_by_index(freqman_steps, step))
+        return opt->second;
     return -1;
 }

firmware/application/freqman.hpp

@@ -2,6 +2,7 @@
  * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
  * Copyright (C) 2016 Furrtek
  * Copyright (C) 2023 gullradriel, Nilorea Studio Inc.
+ * Copyright (C) 2023 Kyle Reed
  *
  * This file is part of PortaPack.
  *
@@ -27,101 +28,43 @@
 #include <cstring>
 #include <string>
 #include "file.hpp"
-#include "ui_receiver.hpp"
-#include "tone_key.hpp"
+#include "freqman_db.hpp"
 #include "string_format.hpp"
+#include "ui_receiver.hpp"
 #include "ui_widget.hpp"
 
-#define FREQMAN_DESC_MAX_LEN 24        // This is the number of characters that can be drawn in front of "R: TEXT..." before taking a full screen line
-#define FREQMAN_MAX_PER_FILE 60        // Maximum of entries we can read. This is a hardware limit
-                                       // It was tested and lowered to leave a bit of space to the caller
-#define FREQMAN_MAX_PER_FILE_STR "60"  // STRING OF FREQMAN_MAX_PER_FILE
-#define FREQMAN_READ_BUF_SIZE 96       // max freqman line size including desc is 90, +6 for a bit of space
+// Defined for back-compat.
+#define FREQMAN_MAX_PER_FILE freqman_default_max_entries
 
-using namespace ui;
-using namespace std;
-using namespace tonekey;
-
-// needs to be signed as -1 means not set
-typedef int8_t freqman_index_t;
-
-enum freqman_error {
+enum freqman_error : int8_t {
     NO_ERROR = 0,
     ERROR_ACCESS,
     ERROR_NOFILES,
     ERROR_DUPLICATE
 };
 
-enum freqman_entry_type {
-    SINGLE = 0,  // f=
-    RANGE,       // a=,b=
-    HAMRADIO,    // r=,t=
-    ERROR_TYPE
-};
-
-enum freqman_entry_modulation {
+enum freqman_entry_modulation : uint8_t {
     AM_MODULATION = 0,
     NFM_MODULATION,
     WFM_MODULATION,
-    MODULATION_DEF,
-    ERROR_MODULATION
+    SPEC_MODULATION
 };
 
-// Entry step placed for AlainD freqman version (or any other enhanced version)
-enum freqman_entry_step {
-    STEP_DEF = -1,  // default
-    AM_US,          // 10 kHz   AM/CB
-    AM_EUR,         // 9 kHz	LW/MW
-    NFM_1,          // 12,5 kHz (Analogic PMR 446)
-    NFM_2,          // 6,25 kHz  (Digital PMR 446)
-    FM_1,           // 100 kHz
-    FM_2,           // 50 kHz
-    N_1,            // 25 kHz
-    N_2,            // 250 kHz
-    AIRBAND,        // AIRBAND 8,33 kHz
-    ERROR_STEP
-};
+// TODO: Replace with FreqmanDB.
+bool load_freqman_file(const std::string& file_stem, freqman_db& db, freqman_load_options options);
+bool delete_freqman_file(const std::string& file_stem);
+bool save_freqman_file(const std::string& file_stem, freqman_db& db);
+bool create_freqman_file(const std::string& file_stem);
 
-struct freqman_entry {
-    rf::Frequency frequency_a{0};  // 'f=freq' or 'a=freq_start' or 'r=recv_freq'
-    rf::Frequency frequency_b{0};  // 'b=freq_end' or 't=tx_freq'
-    std::string description{};     // 'd=desc'
-    freqman_entry_type type{};     // SINGLE,RANGE,HAMRADIO
-    freqman_index_t modulation{};  // AM,NFM,WFM
-    freqman_index_t bandwidth{};   // AM_DSB, ...
-    freqman_index_t step{};        // 5khz (SA AM,...
-    tone_index tone{};             // 0XZ, 11 1ZB,...
-};
-
-using freqman_db = std::vector<freqman_entry>;
-
-bool load_freqman_file(std::string& file_stem, freqman_db& db);
-bool load_freqman_file_ex(std::string& file_stem, freqman_db& db, bool load_freqs, bool load_ranges, bool load_hamradios, uint8_t limit);
-bool get_freq_string(freqman_entry& entry, std::string& item_string);
-bool delete_freqman_file(std::string& file_stem);
-bool save_freqman_file(std::string& file_stem, freqman_db& db);
-bool create_freqman_file(std::string& file_stem, File& freqman_file);
-
-std::string freqman_item_string(freqman_entry& item, size_t max_length);
-
-void freqman_set_bandwidth_option(freqman_index_t modulation, OptionsField& option);
-void freqman_set_modulation_option(OptionsField& option);
-void freqman_set_step_option(OptionsField& option);
-void freqman_set_step_option_short(OptionsField& option);
-void freqman_set_tone_option(OptionsField& option);
-
-std::string freqman_entry_get_modulation_string(freqman_index_t modulation);
-std::string freqman_entry_get_bandwidth_string(freqman_index_t modulation, freqman_index_t bandwidth);
-std::string freqman_entry_get_step_string(freqman_index_t step);
-std::string freqman_entry_get_step_string_short(freqman_index_t step);
+void freqman_set_bandwidth_option(freqman_index_t modulation, ui::OptionsField& option);
+void freqman_set_modulation_option(ui::OptionsField& option);
+void freqman_set_step_option(ui::OptionsField& option);
+void freqman_set_step_option_short(ui::OptionsField& option);
+void freqman_set_tone_option(ui::OptionsField& option);
 
+// TODO: Can these be removed after Recon is migrated to FreqmanDB?
 int32_t freqman_entry_get_modulation_value(freqman_index_t modulation);
 int32_t freqman_entry_get_bandwidth_value(freqman_index_t modulation, freqman_index_t bandwidth);
 int32_t freqman_entry_get_step_value(freqman_index_t step);
 
-freqman_index_t freqman_entry_get_modulation_from_str(char* str);
-freqman_index_t freqman_entry_get_bandwidth_from_str(freqman_index_t modulation, char* str);
-freqman_index_t freqman_entry_get_step_from_str(char* str);
-freqman_index_t freqman_entry_get_step_from_str_short(char* str);
-
 #endif /*__FREQMAN_H__*/

firmware/application/freqman_db.cpp

@@ -0,0 +1,460 @@
+/*
+ * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2016 Furrtek
+ * Copyright (C) 2023 gullradriel, Nilorea Studio Inc.
+ * Copyright (C) 2023 Kyle Reed
+ *
+ * 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 "convert.hpp"
+#include "file.hpp"
+#include "file_reader.hpp"
+#include "freqman_db.hpp"
+#include "string_format.hpp"
+#include "tone_key.hpp"
+#include "utility.hpp"
+
+#include <array>
+#include <cctype>
+#include <string_view>
+#include <vector>
+
+namespace fs = std::filesystem;
+
+const std::filesystem::path freqman_dir{u"/FREQMAN"};
+const std::filesystem::path freqman_extension{u".TXT"};
+
+const std::filesystem::path get_freqman_path(const std::string& stem) {
+    return freqman_dir / stem + freqman_extension;
+}
+
+// NB: Don't include UI headers to keep this code unit testable.
+using option_t = std::pair<std::string, int32_t>;
+using options_t = std::vector<option_t>;
+
+options_t freqman_modulations = {
+    {"AM", 0},
+    {"NFM", 1},
+    {"WFM", 2},
+    {"SPEC", 3},
+};
+
+options_t freqman_bandwidths[4] = {
+    {
+        // AM
+        {"DSB 9k", 0},
+        {"DSB 6k", 1},
+        {"USB+3k", 2},
+        {"LSB-3k", 3},
+        {"CW", 4},
+    },
+    {
+        // NFM
+        {"8k5", 0},
+        {"11k", 1},
+        {"16k", 2},
+    },
+    {
+        // WFM
+        {"40k", 2},
+        {"180k", 1},
+        {"200k", 0},
+    },
+    {
+        // SPEC -- TODO: these should be indexes.
+        {"8k5", 8500},
+        {"11k", 11000},
+        {"16k", 16000},
+        {"25k", 25000},
+        {"50k", 50000},
+        {"100k", 100000},
+        {"250k", 250000},
+        {"500k", 500000}, /* Previous Limit bandwith Option with perfect micro SD write .C16 format operaton.*/
+        {"600k", 600000}, /* That extended option is still possible to record with FW version Mayhem v1.41 (< 2,5MB/sec) */
+        {"650k", 650000},
+        {"750k", 750000}, /* From this BW onwards, the LCD is ok, but the recorded file is decimated, (not real file size) */
+        {"1100k", 1100000},
+        {"1750k", 1750000},
+        {"2000k", 2000000},
+        {"2500k", 2500000},
+        {"2750k", 2750000},  // That is our max Capture option, to keep using later / 8 decimation (22Mhz sampling  ADC)
+    },
+};
+
+options_t freqman_steps = {
+    {"0.1kHz      ", 100},
+    {"1kHz        ", 1000},
+    {"5kHz (SA AM)", 5000},
+    {"6.25kHz(NFM)", 6250},
+    {"8.33kHz(AIR)", 8330},
+    {"9kHz (EU AM)", 9000},
+    {"10kHz(US AM)", 10000},
+    {"12.5kHz(NFM)", 12500},
+    {"15kHz  (HFM)", 15000},
+    {"25kHz   (N1)", 25000},
+    {"30kHz (OIRT)", 30000},
+    {"50kHz  (FM1)", 50000},
+    {"100kHz (FM2)", 100000},
+    {"250kHz  (N2)", 250000},
+    {"500kHz (WFM)", 500000},
+    {"1MHz        ", 1000000},
+};
+
+options_t freqman_steps_short = {
+    {"0.1kHz", 100},
+    {"1kHz", 1000},
+    {"5kHz", 5000},
+    {"6.25kHz", 6250},
+    {"8.33kHz", 8330},
+    {"9kHz", 9000},
+    {"10kHz", 10000},
+    {"12.5kHz", 12500},
+    {"15kHz", 15000},
+    {"25kHz", 25000},
+    {"30kHz", 30000},
+    {"50kHz", 50000},
+    {"100kHz", 100000},
+    {"250kHz", 250000},
+    {"500kHz", 500000},
+    {"1MHz", 1000000},
+};
+
+uint8_t find_by_name(const options_t& options, std::string_view name) {
+    for (auto ix = 0u; ix < options.size(); ++ix)
+        if (options[ix].first == name)
+            return ix;
+
+    return freqman_invalid_index;
+}
+
+const option_t* find_by_index(const options_t& options, freqman_index_t index) {
+    if (index < options.size())
+        return &options[index];
+    else
+        return nullptr;
+}
+
+/* Impl for next round of changes.
+ *template <typename T, size_t N>
+ *const T* find_by_name(const std::array<T, N>& info, std::string_view name) {
+ *    for (const auto& it : info) {
+ *        if (it.name == name)
+ *            return &it;
+ *    }
+ *
+ *    return nullptr;
+ *}
+ */
+
+std::string freqman_entry_get_modulation_string(freqman_index_t modulation) {
+    if (auto opt = find_by_index(freqman_modulations, modulation))
+        return opt->first;
+    return {};
+}
+
+std::string freqman_entry_get_bandwidth_string(freqman_index_t modulation, freqman_index_t bandwidth) {
+    if (modulation < freqman_modulations.size()) {
+        if (auto opt = find_by_index(freqman_bandwidths[modulation], bandwidth))
+            return opt->first;
+    }
+    return {};
+}
+
+std::string freqman_entry_get_step_string(freqman_index_t step) {
+    if (auto opt = find_by_index(freqman_steps, step))
+        return opt->first;
+    return {};
+}
+
+std::string freqman_entry_get_step_string_short(freqman_index_t step) {
+    if (auto opt = find_by_index(freqman_steps_short, step))
+        return opt->first;
+    return {};
+}
+
+std::string pretty_string(const freqman_entry& entry, size_t max_length) {
+    std::string str;
+
+    switch (entry.type) {
+        case freqman_type::Single:
+            str = to_string_short_freq(entry.frequency_a) + "M: " + entry.description;
+            break;
+        case freqman_type::Range:
+            str = to_string_dec_uint(entry.frequency_a / 1'000'000) + "M-" +
+                  to_string_dec_uint(entry.frequency_b / 1'000'000) + "M: " + entry.description;
+            break;
+        case freqman_type::HamRadio:
+            str = "" + to_string_dec_uint(entry.frequency_a / 1'000'000) + "M," +
+                  to_string_dec_uint(entry.frequency_b / 1'000'000) + "M: " + entry.description;
+            break;
+        default:
+            str = "UNK:" + entry.description;
+            break;
+    }
+
+    // Truncate. '+' indicates if string has been truncated.
+    if (str.size() > max_length)
+        return str.substr(0, max_length - 1) + "+";
+
+    return str;
+}
+
+std::string to_freqman_string(const freqman_entry& entry) {
+    std::string serialized;
+    serialized.reserve(0x80);
+
+    // Append a key=value to the string.
+    auto append_field = [&serialized](std::string_view name, std::string_view value) {
+        if (!serialized.empty())
+            serialized += ",";
+        serialized += std::string{name} + "=" + std::string{value};
+    };
+
+    switch (entry.type) {
+        case freqman_type::Single:
+            append_field("f", to_string_dec_uint64(entry.frequency_a));
+            break;
+        case freqman_type::Range:
+            append_field("a", to_string_dec_uint64(entry.frequency_a));
+            append_field("b", to_string_dec_uint64(entry.frequency_b));
+
+            if (is_valid(entry.step))
+                append_field("s", freqman_entry_get_step_string_short(entry.step));
+            break;
+        case freqman_type::HamRadio:
+            append_field("r", to_string_dec_uint64(entry.frequency_a));
+            append_field("t", to_string_dec_uint64(entry.frequency_b));
+
+            if (is_valid(entry.tone))
+                append_field("c", tonekey::tone_key_value_string(entry.tone));
+            break;
+        default:
+            return {};  // TODO: Comment type with description?
+    };
+
+    if (is_valid(entry.modulation) && entry.modulation < freqman_modulations.size()) {
+        append_field("m", freqman_entry_get_modulation_string(entry.modulation));
+
+        if (is_valid(entry.bandwidth) && (unsigned)entry.bandwidth < freqman_bandwidths[entry.modulation].size())
+            append_field("bw", freqman_entry_get_bandwidth_string(entry.modulation, entry.bandwidth));
+    }
+
+    if (entry.description.size() > 0)
+        append_field("d", entry.description);
+
+    serialized.shrink_to_fit();
+    return serialized;
+}
+
+freqman_index_t parse_tone_key(std::string_view value) {
+    // Split into whole and fractional parts.
+    auto parts = split_string(value, '.');
+    int32_t tone_freq = 0;
+    int32_t whole_part = 0;
+    parse_int(parts[0], whole_part);
+
+    // Tones are stored as frequency / 100 for some reason.
+    // E.g. 14572 would be 145.7 (NB: 1s place is dropped).
+    // TODO: Might be easier to just store the codes?
+    // Multiply the whole part by 100 to get the tone frequency.
+    tone_freq = whole_part * 100;
+
+    // Add the fractional part, if present.
+    if (parts.size() > 1) {
+        auto c = parts[1].front();
+        auto digit = std::isdigit(c) ? c - '0' : 0;
+        tone_freq += digit * 10;
+    }
+
+    return static_cast<freqman_index_t>(tonekey::tone_key_index_by_value(tone_freq));
+}
+
+bool parse_freqman_entry(std::string_view str, freqman_entry& entry) {
+    if (str.empty() || str[0] == '#')
+        return false;
+
+    entry = freqman_entry{};
+    auto cols = split_string(str, ',');
+
+    for (auto col : cols) {
+        if (col.empty())
+            continue;
+
+        auto pair = split_string(col, '=');
+        if (pair.size() != 2)
+            continue;
+
+        auto key = pair[0];
+        auto value = pair[1];
+
+        if (key == "a") {
+            entry.type = freqman_type::Range;
+            parse_int(value, entry.frequency_a);
+        } else if (key == "b") {
+            parse_int(value, entry.frequency_b);
+        } else if (key == "bw") {
+            // NB: Requires modulation to be set first
+            if (entry.modulation < std::size(freqman_bandwidths)) {
+                entry.bandwidth = find_by_name(freqman_bandwidths[entry.modulation], value);
+            }
+        } else if (key == "c") {
+            entry.tone = parse_tone_key(value);
+        } else if (key == "d") {
+            entry.description = trim(value);
+        } else if (key == "f") {
+            entry.type = freqman_type::Single;
+            parse_int(value, entry.frequency_a);
+        } else if (key == "m") {
+            entry.modulation = find_by_name(freqman_modulations, value);
+        } else if (key == "r") {
+            entry.type = freqman_type::HamRadio;
+            parse_int(value, entry.frequency_a);
+        } else if (key == "s") {
+            entry.step = find_by_name(freqman_steps_short, value);
+        } else if (key == "t") {
+            parse_int(value, entry.frequency_b);
+        }
+    }
+
+    // No valid frequency combination was set.
+    if (entry.type == freqman_type::Unknown)
+        return false;
+
+    // Ranges should have both frequencies set and A <= B.
+    if (entry.type == freqman_type::Range || entry.type == freqman_type::HamRadio) {
+        if (entry.frequency_a == 0 || entry.frequency_b == 0)
+            return false;
+
+        if (entry.frequency_a > entry.frequency_b)
+            return false;
+    }
+
+    // TODO: Consider additional validation:
+    // - Tone only on HamRadio.
+    // - Fail on failed parse_int.
+    // - Fail if bandwidth set before modulation.
+
+    return true;
+}
+
+// TODO: Use FreqmanDB iterator.
+bool parse_freqman_file(const fs::path& path, freqman_db& db, freqman_load_options options) {
+    File f;
+    auto error = f.open(path);
+    if (error)
+        return false;
+
+    auto reader = FileLineReader(f);
+    auto line_count = count_lines(reader);
+
+    // Attempt to avoid a re-alloc if possible.
+    db.clear();
+    db.reserve(line_count);
+
+    for (const auto& line : reader) {
+        freqman_entry entry{};
+        if (!parse_freqman_entry(line, entry))
+            continue;
+
+        // Filter by entry type.
+        if ((entry.type == freqman_type::Single && !options.load_freqs) ||
+            (entry.type == freqman_type::Range && !options.load_ranges) ||
+            (entry.type == freqman_type::HamRadio && !options.load_hamradios)) {
+            continue;
+        }
+
+        // Use previous entry's mod/band if current's aren't set.
+        if (!db.empty()) {
+            if (is_invalid(entry.modulation))
+                entry.modulation = db.back()->modulation;
+            if (is_invalid(entry.bandwidth))
+                entry.bandwidth = db.back()->bandwidth;
+        }
+
+        // Move the entry onto the heap and push.
+        db.push_back(std::make_unique<freqman_entry>(std::move(entry)));
+
+        // Limit to max_entries when specified.
+        if (options.max_entries > 0 && db.size() >= options.max_entries)
+            break;
+    }
+
+    db.shrink_to_fit();
+    return true;
+}
+
+/* FreqmanDB ***********************************/
+
+bool FreqmanDB::open(const std::filesystem::path& path) {
+    auto result = FileWrapper::open(path);
+    if (!result)
+        return false;
+
+    wrapper_ = *std::move(result);
+    return true;
+}
+
+void FreqmanDB::close() {
+    wrapper_.reset();
+}
+
+freqman_entry FreqmanDB::operator[](FileWrapper::Line line) const {
+    auto length = wrapper_->line_length(line);
+    auto line_text = wrapper_->get_text(line, 0, length);
+
+    if (line_text) {
+        freqman_entry entry;
+        if (parse_freqman_entry(*line_text, entry))
+            return entry;
+    }
+
+    return {};
+}
+
+void FreqmanDB::insert_entry(const freqman_entry& entry, FileWrapper::Line line) {
+    // TODO: Can be more efficient.
+    line = clip<uint32_t>(line, 0u, entry_count());
+    wrapper_->insert_line(line);
+    replace_entry(line, entry);
+}
+
+void FreqmanDB::replace_entry(FileWrapper::Line line, const freqman_entry& entry) {
+    auto range = wrapper_->line_range(line);
+    if (!range)
+        return;  // TODO: Message?
+
+    // Don't overwrite the '\n'.
+    range->end--;
+    wrapper_->replace_range(*range, to_freqman_string(entry));
+}
+
+void FreqmanDB::delete_entry(FileWrapper::Line line) {
+    wrapper_->delete_line(line);
+}
+
+uint32_t FreqmanDB::entry_count() const {
+    // FileWrapper always presents a single line even for empty files.
+    return empty() ? 0u : wrapper_->line_count();
+}
+
+bool FreqmanDB::empty() const {
+    // FileWrapper always presents a single line even for empty files.
+    // A DB is only really empty if the file size is 0.
+    return !wrapper_ || wrapper_->size() == 0;
+}

firmware/application/freqman_db.hpp

@@ -0,0 +1,234 @@
+/*
+ * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2016 Furrtek
+ * Copyright (C) 2023 gullradriel, Nilorea Studio Inc.
+ * Copyright (C) 2023 Kyle Reed
+ *
+ * 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.
+ */
+
+#ifndef __FREQMAN_DB_H__
+#define __FREQMAN_DB_H__
+
+#include "file.hpp"
+#include "file_wrapper.hpp"
+#include "utility.hpp"
+
+#include <array>
+#include <memory>
+#include <string>
+#include <string_view>
+#include <vector>
+
+/* Defined in freqman_db.cpp */
+extern const std::filesystem::path freqman_dir;
+extern const std::filesystem::path freqman_extension;
+
+using freqman_index_t = uint8_t;
+constexpr freqman_index_t freqman_invalid_index = static_cast<freqman_index_t>(-1);
+
+/* Returns true if the value is not invalid_index. */
+constexpr bool is_valid(freqman_index_t index) {
+    return index != freqman_invalid_index;
+}
+
+/* Returns true if the value is invalid_index. */
+constexpr bool is_invalid(freqman_index_t index) {
+    return index == freqman_invalid_index;
+}
+
+/* Gets the full path for a given file stem (no extension). */
+const std::filesystem::path get_freqman_path(const std::string& stem);
+
+enum class freqman_type : uint8_t {
+    Single,    // f=
+    Range,     // a=,b=
+    HamRadio,  // r=,t=
+    Unknown,
+};
+
+/* Tables for next round of changes.
+ * // TODO: attempt to consolidate all of these values
+ * // and settings into a single location.
+ * // Should tone_keys get consolidated here too?
+ * enum class freqman_modulation : uint8_t {
+    AM,
+    NFM,
+    WFM,
+    SPEC,
+    Unknown,
+ * };
+ *
+ * struct freqman_modulation_info {
+ *     freqman_modulation modulation;
+ *     std::string_view name;
+ * };
+ *
+ * constexpr std::array<freqman_modulation_info, 5> freqman_modulations = {
+    freqman_modulation_info{ freqman_modulation::AM, "AM" },
+    freqman_modulation_info{ freqman_modulation::NFM, "NFM" },
+    freqman_modulation_info{ freqman_modulation::WFM, "WFM" },
+    freqman_modulation_info{ freqman_modulation::SPEC, "SPEC" },
+    freqman_modulation_info{ freqman_modulation::Unknown, "Unknown" }
+ * };
+ * static_assert(std::size(freqman_modulations) == (size_t)freqman_modulation::Unknown + 1);
+ *
+ * enum class freqman_step : uint8_t {
+    _100Hz,
+    _1kHz,
+    _5kHz,
+    _6_25kHz,
+    _8_33kHz,
+    _9kHz,
+    _10kHz,
+    _12_5kHz,
+    _15kHz,
+    _25kHz,
+    _30kHz,
+    _50kHz,
+    _100kHz,
+    _250kHz,
+    _500kHz,
+    _1MHz,
+    Unknown,
+ * };
+ *
+ * struct freqman_step_info {
+ *     freqman_step step;
+ *     std::string_view name;
+ *     std::string_view display_name;
+ *     uint32_t value;
+ * };
+ *
+ * // TODO: FrequencyStepView should use this list.
+ * constexpr std::array<freqman_step_info, 18> freqman_steps = {
+    freqman_step_info{ freqman_step::_100Hz,   "0.1kHz",  "0.1kHz      ", 100 },
+    freqman_step_info{ freqman_step::_1kHz,    "1kHz",    "1kHz        ", 1'000 },
+    freqman_step_info{ freqman_step::_5kHz,    "5kHz",    "5kHz (SA AM)", 5'000 },
+    freqman_step_info{ freqman_step::_6_25kHz, "6.25kHz", "6.25kHz(NFM)", 6'250 },
+    freqman_step_info{ freqman_step::_8_33kHz, "8.33kHz", "8.33kHz(AIR)", 8'330 },
+    freqman_step_info{ freqman_step::_9kHz,    "9kHz",    "9kHz (EU AM)", 9'000 },
+    freqman_step_info{ freqman_step::_10kHz,   "10kHz",   "10kHz(US AM)", 10'000 },
+    freqman_step_info{ freqman_step::_12_5kHz, "12.5kHz", "12.5kHz(NFM)", 12'500 },
+    freqman_step_info{ freqman_step::_15kHz,   "15kHz",   "15kHz  (HFM)", 15'000 },
+    freqman_step_info{ freqman_step::_25kHz,   "25kHz",   "25kHz   (N1)", 25'000 },
+    freqman_step_info{ freqman_step::_30kHz,   "30kHz",   "30kHz (OIRT)", 30'000 },
+    freqman_step_info{ freqman_step::_50kHz,   "50kHz",   "50kHz  (FM1)", 50'000 },
+    freqman_step_info{ freqman_step::_100kHz,  "100kHz",  "100kHz (FM2)", 100'000 },
+    freqman_step_info{ freqman_step::_250kHz,  "250kHz",  "250kHz  (N2)", 250'000 },
+    freqman_step_info{ freqman_step::_500kHz,  "500kHz",  "500kHz (WFM)", 500'000 },
+    freqman_step_info{ freqman_step::_1MHz,    "1MHz",    "1MHz        ", 1'000'000 },
+    freqman_step_info{ freqman_step::Unknown,  "Unknown", "Unknown     ", 0 },
+ * };
+ * static_assert(std::size(freqman_steps) == (size_t)freqman_step::Unknown + 1);
+*/
+
+/* Freqman Entry *******************************/
+struct freqman_entry {
+    int64_t frequency_a{0};      // 'f=freq' or 'a=freq_start' or 'r=recv_freq'
+    int64_t frequency_b{0};      // 'b=freq_end' or 't=tx_freq'
+    std::string description{0};  // 'd=desc'
+    freqman_type type{freqman_type::Unknown};
+    freqman_index_t modulation{freqman_invalid_index};
+    freqman_index_t bandwidth{freqman_invalid_index};
+    freqman_index_t step{freqman_invalid_index};
+    freqman_index_t tone{freqman_invalid_index};
+};
+
+// TODO: These shouldn't be exported.
+std::string freqman_entry_get_modulation_string(freqman_index_t modulation);
+std::string freqman_entry_get_bandwidth_string(freqman_index_t modulation, freqman_index_t bandwidth);
+std::string freqman_entry_get_step_string(freqman_index_t step);
+std::string freqman_entry_get_step_string_short(freqman_index_t step);
+
+/* A reasonable maximum number of items to load from a freqman file.
+ * Apps using freqman_db should be tested and this value tuned to
+ * ensure app memory stability. */
+constexpr size_t freqman_default_max_entries = 150;
+
+struct freqman_load_options {
+    /* Loads all entries when set to 0. */
+    size_t max_entries{freqman_default_max_entries};
+    bool load_freqs{true};
+    bool load_ranges{true};
+    bool load_hamradios{true};
+};
+
+using freqman_entry_ptr = std::unique_ptr<freqman_entry>;
+using freqman_db = std::vector<freqman_entry_ptr>;
+
+/* Gets a pretty string representation for an entry. */
+std::string pretty_string(const freqman_entry& item, size_t max_length = 30);
+
+/* Gets the freqman file representation for an entry. */
+std::string to_freqman_string(const freqman_entry& entry);
+
+bool parse_freqman_entry(std::string_view str, freqman_entry& entry);
+bool parse_freqman_file(const std::filesystem::path& path, freqman_db& db, freqman_load_options options);
+
+/* The tricky part of using the file directly is that there can be comments
+ * and empty lines in the file. This messes up the 'count' calculation.
+ * Either have to live with 'count' being an upper bound have the callers
+ * know to expect that entries may be empty. */
+// NB: This won't apply implicit mod/bandwidth.
+// TODO: Reuse for parse_freqman_file
+class FreqmanDB {
+   public:
+    class iterator {
+       public:
+        iterator(FreqmanDB& db, FileWrapper::Offset line)
+            : db_{db}, line_{line} {}
+        iterator& operator++() {
+            line_++;
+            return *this;
+        }
+        freqman_entry operator*() const {
+            return db_[line_];
+        }
+
+        bool operator!=(const iterator& other) {
+            return &db_ != &other.db_ || line_ != other.line_;
+        }
+
+       private:
+        FreqmanDB& db_;
+        FileWrapper::Line line_;
+    };
+
+    bool open(const std::filesystem::path& path);
+    void close();
+    freqman_entry operator[](FileWrapper::Line line) const;
+    void insert_entry(const freqman_entry& entry, FileWrapper::Line line);
+    void replace_entry(FileWrapper::Line line, const freqman_entry& entry);
+    void delete_entry(FileWrapper::Line line);
+
+    uint32_t entry_count() const;
+    bool empty() const;
+
+    iterator begin() {
+        return {*this, 0};
+    }
+    iterator end() {
+        return {*this, entry_count()};
+    }
+
+   private:
+    std::unique_ptr<FileWrapper> wrapper_{};
+};
+
+#endif /* __FREQMAN_DB_H__ */

firmware/application/hw/debounce.cpp

@@ -30,7 +30,7 @@ bool Debounce::feed(const uint8_t bit) {
     // "Repeat" handling - simulated button release
     if (repeat_ctr_) {
         // Make sure the button is still being held continuously
-        if (history_ == 0xFF) {
+        if ((history_ == 0xFF) && !long_press_enabled_) {
             // Simulate button press every REPEAT_SUBSEQUENT_DELAY ticks
             if (--repeat_ctr_ == 0) {
                 state_ = !state_;
@@ -49,29 +49,59 @@ bool Debounce::feed(const uint8_t bit) {
         if ((history_ & DEBOUNCE_MASK) == DEBOUNCE_MASK) {
             state_ = 1;
             held_time_ = 0;
+
+            // If long_press_enabled_, state() function masks the button press until it's released
+            // or until LONG_PRESS_DELAY is reached
+            if (long_press_enabled_) {
+                pulse_upon_release_ = true;
+                return false;
+            }
             return true;
         }
     } else {
         // Previous button state was 1 (pressed);
         // Has button been released for DEBOUNCE_COUNT ticks?
         if ((history_ & DEBOUNCE_MASK) == 0) {
-            state_ = 0;
+            // Button has been released when long_press_enabled_ and before LONG_PRESS_DELAY was reached;
+            // allow state() function to finally return a single press indication
+            // (in long press mode, apps won't see button press until the button is released)
+            if (pulse_upon_release_) {
+                // leaving state_==1 for one cycle
+                pulse_upon_release_ = 0;
+            } else {
+                state_ = 0;
+            }
+
+            // Reset long_press_occurred_ flag after button is released
+            long_press_occurred_ = false;
             return true;
         }
 
-        // Repeat support is limited to the 4 directional buttons
-        if (repeat_enabled_) {
-            // Has button been held continuously for DEBOUNCE_REPEAT_DELAY?
-            if (history_ == 0xFF) {
-                if (++held_time_ == REPEAT_INITIAL_DELAY) {
+        // Has button been held continuously?
+        if (history_ == 0xFF) {
+            held_time_++;
+            if (pulse_upon_release_) {
+                // Button is being held down and long_press support is enabled for this key:
+                // if LONG_PRESS_DELAY is reached then finally report that switch is pressed and set flag
+                // indicating it was a LONG press
+                // (note that repease_support and long_press support are mutually exclusive)
+                if (held_time_ == LONG_PRESS_DELAY) {
+                    long_press_occurred_ = true;
+                    pulse_upon_release_ = 0;
+                    held_time_ = 0;
+                    return true;
+                }
+            } else if (repeat_enabled_ && !long_press_enabled_) {
+                // Repeat support -- 4 directional buttons only (unless long_press is enabled)
+                if (held_time_ == REPEAT_INITIAL_DELAY) {
                     // Delay reached; trigger repeat code on NEXT tick
                     repeat_ctr_ = 1;
                     held_time_ = 0;
                 }
-            } else {
-                // Button not continuously pressed; reset counter
-                held_time_ = 0;
             }
+        } else {
+            // Button not continuously pressed; reset counter
+            held_time_ = 0;
         }
     }
     return false;

firmware/application/hw/debounce.hpp

@@ -31,25 +31,39 @@
 // # of timer0 ticks before a held button starts being counted as repeated presses
 #define REPEAT_INITIAL_DELAY 250
 #define REPEAT_SUBSEQUENT_DELAY 92
+#define LONG_PRESS_DELAY 1000
 
 class Debounce {
    public:
     bool feed(const uint8_t bit);
 
     uint8_t state() const {
-        return state_;
+        return (pulse_upon_release_) ? 0 : state_;
     }
 
     void enable_repeat() {
         repeat_enabled_ = true;
     }
 
+    void set_long_press_support(bool v) {
+        long_press_enabled_ = v;
+    }
+
+    bool long_press_occurred() {
+        bool v = long_press_occurred_;
+        long_press_occurred_ = false;
+        return v;
+    }
+
    private:
     uint8_t history_{0};
     uint8_t state_{0};
     bool repeat_enabled_{0};
     uint16_t repeat_ctr_{0};
     uint16_t held_time_{0};
+    bool pulse_upon_release_{0};
+    bool long_press_enabled_{0};
+    bool long_press_occurred_{0};
 };
 
 #endif /*__DEBOUNCE_H__*/

firmware/application/irq_controls.cpp

@@ -195,16 +195,33 @@ void controls_init() {
 
 SwitchesState get_switches_state() {
     SwitchesState result;
+
+    // Right, Left, Down, Up, & Select switches
     for (size_t i = 0; i < result.size() - 1; i++) {
         // TODO: Ignore multiple keys at the same time?
         result[i] = switch_debounce[i].state();
     }
 
-    result[result.size() - 1] = switch_debounce[switch_debounce.size() - 1].state();
-
+    // Grab Dfu switch from bit 7 and return in bit 5 so that all switches are grouped together in this 6-bit result
+    result[(size_t)Switch::Dfu] = switch_debounce[7].state();
     return result;
 }
 
+// Configure which switches support long press (note those switches will not support Repeat function)
+void switches_long_press_enable(SwitchesState switches_long_press_enabled) {
+    // Right, Left, Down, Up, & Select switches
+    for (size_t i = 0; i < switches_long_press_enabled.size() - 1; i++) {
+        switch_debounce[i].set_long_press_support(switches_long_press_enabled[i]);
+    }
+
+    // Dfu switch
+    switch_debounce[7].set_long_press_support(switches_long_press_enabled[(size_t)Switch::Dfu]);
+}
+
+bool switch_long_press_occurred(size_t v) {
+    return (v == (size_t)Switch::Dfu) ? switch_debounce[7].long_press_occurred() : switch_debounce[v].long_press_occurred();
+}
+
 EncoderPosition get_encoder_position() {
     return encoder_position;
 }

firmware/application/irq_controls.hpp

@@ -27,6 +27,7 @@
 
 #include "touch.hpp"
 
+// Must be same values as in ui::KeyEvent
 enum class Switch {
     Right = 0,
     Left = 1,
@@ -44,6 +45,8 @@ void controls_init();
 SwitchesState get_switches_state();
 EncoderPosition get_encoder_position();
 touch::Frame get_touch_frame();
+void switches_long_press_enable(SwitchesState v);
+bool switch_long_press_occurred(size_t v);
 
 namespace control {
 namespace debug {

firmware/application/metadata_file.cpp

@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2023 Kyle Reed
+ *
+ * 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 "metadata_file.hpp"
+
+#include "convert.hpp"
+#include "file_reader.hpp"
+#include "string_format.hpp"
+#include <string_view>
+
+namespace fs = std::filesystem;
+using namespace std::literals;
+
+const std::string_view center_freq_name = "center_frequency"sv;
+const std::string_view sample_rate_name = "sample_rate"sv;
+
+fs::path get_metadata_path(const fs::path& capture_path) {
+    auto temp = capture_path;
+    return temp.replace_extension(u".TXT");
+}
+
+Optional<File::Error> write_metadata_file(const fs::path& path, capture_metadata metadata) {
+    File f;
+    auto error = f.create(path);
+
+    if (error)
+        return error;
+
+    error = f.write_line(std::string{center_freq_name} + "=" +
+                         to_string_dec_uint(metadata.center_frequency));
+    if (error)
+        return error;
+
+    error = f.write_line(std::string{sample_rate_name} + "=" +
+                         to_string_dec_uint(metadata.sample_rate));
+    if (error)
+        return error;
+
+    return {};
+}
+
+Optional<capture_metadata> read_metadata_file(const fs::path& path) {
+    File f;
+    auto error = f.open(path);
+
+    if (error)
+        return {};
+
+    capture_metadata metadata{};
+
+    auto reader = FileLineReader(f);
+    for (const auto& line : reader) {
+        auto cols = split_string(line, '=');
+
+        if (cols.size() != 2)
+            continue;  // Bad line.
+
+        if (cols[0] == center_freq_name)
+            parse_int(cols[1], metadata.center_frequency);
+        else if (cols[0] == sample_rate_name)
+            parse_int(cols[1], metadata.sample_rate);
+        else
+            continue;
+    }
+
+    if (metadata.center_frequency == 0 || metadata.sample_rate == 0)
+        return {};  // Parse failed.
+
+    return metadata;
+}

firmware/application/metadata_file.hpp

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2023 Kyle Reed
+ *
+ * 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.
+ */
+
+#ifndef __METADATA_FILE_HPP__
+#define __METADATA_FILE_HPP__
+
+#include "file.hpp"
+#include "optional.hpp"
+#include "rf_path.hpp"
+
+struct capture_metadata {
+    rf::Frequency center_frequency;
+    uint32_t sample_rate;
+};
+
+std::filesystem::path get_metadata_path(const std::filesystem::path& capture_path);
+
+Optional<File::Error> write_metadata_file(const std::filesystem::path& path, capture_metadata metadata);
+Optional<capture_metadata> read_metadata_file(const std::filesystem::path& path);
+
+#endif  // __METADATA_FILE_HPP__

firmware/application/radio_state.hpp

@@ -28,38 +28,47 @@
 #include "receiver_model.hpp"
 #include "transmitter_model.hpp"
 
-/* Stashes current radio bandwidth and sampling rate.
- * Inits to defaults, and restores previous when destroyed.
- * The idea here is that an app will eventually call enable
- * on the model which will sync all of the model state into
- * the radio. We tried lazily setting these using the
- * set_configuration_without_update function, but there are
- * still various UI components (mainly Waterfall) that need
- * the radio set in order to load properly.
+/* Reinitialized model with defaults so each app can start
+ * with a clean, default model instance. We tried lazily
+ * setting these using the set_configuration_without_update
+ * function, but there are still various UI components
+ * (e.g. Waterfall) that need the radio set in order to load.
  * NB: This member must be added before SettingsManager. */
 template <typename TModel, TModel* model>
 class RadioState {
    public:
-    RadioState()
-        : RadioState(max2837::filter::bandwidth_minimum, 3072000) {
+    RadioState() {
+        model->initialize();
     }
 
-    RadioState(uint32_t new_bandwidth, uint32_t new_sampling_rate)
-        : prev_bandwidth_{model->baseband_bandwidth()},
-          prev_sampling_rate_{model->sampling_rate()} {
-        // Update the new settings in the radio.
+    RadioState(uint32_t new_bandwidth, uint32_t new_sampling_rate) {
+        model->initialize();
         model->set_sampling_rate(new_sampling_rate);
         model->set_baseband_bandwidth(new_bandwidth);
     }
 
-    ~RadioState() {
-        model->set_configuration_without_update(
-            prev_bandwidth_, prev_sampling_rate_);
+    // NB: only enabled for RX model.
+    template <
+        typename U = TModel,
+        typename Mode = std::enable_if_t<sizeof(typename U::Mode), typename U::Mode> >
+    RadioState(Mode new_mode) {
+        model->initialize();
+        model->settings().mode = new_mode;
     }
 
-   private:
-    const uint32_t prev_bandwidth_;
-    const uint32_t prev_sampling_rate_;
+    // NB: only enabled for RX model.
+    template <
+        typename U = TModel,
+        typename Mode = std::enable_if_t<sizeof(typename U::Mode), typename U::Mode> >
+    RadioState(
+        uint32_t new_bandwidth,
+        uint32_t new_sampling_rate,
+        Mode new_mode) {
+        model->initialize();
+        model->set_sampling_rate(new_sampling_rate);
+        model->set_baseband_bandwidth(new_bandwidth);
+        model->settings().mode = new_mode;
+    }
 };
 
 using RxRadioState = RadioState<ReceiverModel, &portapack::receiver_model>;

firmware/application/receiver_model.cpp

@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Kyle Reed
  *
  * This file is part of PortaPack.
  *
@@ -39,9 +40,9 @@ using namespace portapack;
 namespace {
 
 static constexpr std::array<baseband::AMConfig, 5> am_configs{{
-    // we config here all the non COMMON  parameters to each AM modulation type in RX.
-    {taps_9k0_decim_2, taps_9k0_dsb_channel, AMConfigureMessage::Modulation::DSB},  // AM DSB-C  BW 9khz  (+-4k5)	commercial EU bandwidth .
-    {taps_6k0_decim_2, taps_6k0_dsb_channel, AMConfigureMessage::Modulation::DSB},  // AM DSB-C  BW 6khz  (+-3k0)	narrow AM , ham equipments.
+    // we config here all the non COMMON parameters to each AM modulation type in RX.
+    {taps_9k0_decim_2, taps_9k0_dsb_channel, AMConfigureMessage::Modulation::DSB},  // AM DSB-C  BW 9khz  (+-4k5)  commercial EU bandwidth .
+    {taps_6k0_decim_2, taps_6k0_dsb_channel, AMConfigureMessage::Modulation::DSB},  // AM DSB-C  BW 6khz  (+-3k0)  narrow AM , ham equipments.
     {taps_6k0_decim_2, taps_2k8_usb_channel, AMConfigureMessage::Modulation::SSB},  // SSB USB   BW 2K8   (+ 2K8)
     {taps_6k0_decim_2, taps_2k8_lsb_channel, AMConfigureMessage::Modulation::SSB},  // SSB LSB   BW 2K8   (- 2K8)
     {taps_6k0_decim_2, taps_0k7_usb_channel, AMConfigureMessage::Modulation::SSB},  // SSB USB   BW 0K7   (+ 0K7)  used to get audio tone from CW Morse, assuming tx shifted +700hz aprox
@@ -70,72 +71,114 @@ void ReceiverModel::set_target_frequency(rf::Frequency f) {
     update_tuning_frequency();
 }
 
+uint32_t ReceiverModel::baseband_bandwidth() const {
+    return settings_.baseband_bandwidth;
+}
+
+void ReceiverModel::set_baseband_bandwidth(uint32_t v) {
+    settings_.baseband_bandwidth = v;
+    update_baseband_bandwidth();
+}
+
+uint32_t ReceiverModel::sampling_rate() const {
+    return settings_.sampling_rate;
+}
+
+void ReceiverModel::set_sampling_rate(uint32_t v) {
+    settings_.sampling_rate = v;
+    update_sampling_rate();
+}
+
 rf::Frequency ReceiverModel::frequency_step() const {
-    return frequency_step_;
+    return settings_.frequency_step;
 }
 
 void ReceiverModel::set_frequency_step(rf::Frequency f) {
-    frequency_step_ = f;
+    settings_.frequency_step = f;
+}
+
+uint8_t ReceiverModel::lna() const {
+    return settings_.lna_gain_db;
+}
+
+void ReceiverModel::set_lna(uint8_t v_db) {
+    settings_.lna_gain_db = v_db;
+    update_lna();
+}
+
+uint8_t ReceiverModel::vga() const {
+    return settings_.vga_gain_db;
+}
+
+void ReceiverModel::set_vga(uint8_t v_db) {
+    settings_.vga_gain_db = v_db;
+    update_vga();
+}
+
+bool ReceiverModel::rf_amp() const {
+    return settings_.rf_amp;
+}
+
+void ReceiverModel::set_rf_amp(bool enabled) {
+    settings_.rf_amp = enabled;
+    update_rf_amp();
+}
+
+ReceiverModel::Mode ReceiverModel::modulation() const {
+    return settings_.mode;
+}
+
+void ReceiverModel::set_modulation(Mode v) {
+    settings_.mode = v;
+    update_modulation();
+}
+
+uint8_t ReceiverModel::am_configuration() const {
+    return settings_.am_config_index;
+}
+
+void ReceiverModel::set_am_configuration(uint8_t n) {
+    if (n < am_configs.size()) {
+        settings_.am_config_index = n;
+        update_modulation();
+    }
+}
+
+uint8_t ReceiverModel::nbfm_configuration() const {
+    return settings_.nbfm_config_index;
+}
+
+void ReceiverModel::set_nbfm_configuration(uint8_t n) {
+    if (n < nbfm_configs.size()) {
+        settings_.nbfm_config_index = n;
+        update_modulation();
+    }
+}
+
+uint8_t ReceiverModel::wfm_configuration() const {
+    return settings_.wfm_config_index;
+}
+
+void ReceiverModel::set_wfm_configuration(uint8_t n) {
+    if (n < wfm_configs.size()) {
+        settings_.wfm_config_index = n;
+        update_modulation();
+    }
+}
+
+uint8_t ReceiverModel::squelch_level() const {
+    return settings_.squelch_level;
+}
+
+void ReceiverModel::set_squelch_level(uint8_t v) {
+    settings_.squelch_level = v;
+    update_modulation();
 }
 
 void ReceiverModel::set_antenna_bias() {
     update_antenna_bias();
 }
 
-bool ReceiverModel::rf_amp() const {
-    return rf_amp_;
-}
-
-void ReceiverModel::set_rf_amp(bool enabled) {
-    rf_amp_ = enabled;
-    update_rf_amp();
-}
-
-int32_t ReceiverModel::lna() const {
-    return lna_gain_db_;
-}
-
-void ReceiverModel::set_lna(int32_t v_db) {
-    lna_gain_db_ = v_db;
-    update_lna();
-}
-
-uint32_t ReceiverModel::baseband_bandwidth() const {
-    return baseband_bandwidth_;
-}
-
-void ReceiverModel::set_baseband_bandwidth(uint32_t v) {
-    baseband_bandwidth_ = v;
-    update_baseband_bandwidth();
-}
-
-int32_t ReceiverModel::vga() const {
-    return vga_gain_db_;
-}
-
-void ReceiverModel::set_vga(int32_t v_db) {
-    vga_gain_db_ = v_db;
-    update_vga();
-}
-
-uint32_t ReceiverModel::sampling_rate() const {
-    return sampling_rate_;
-}
-
-void ReceiverModel::set_sampling_rate(uint32_t v) {
-    sampling_rate_ = v;
-    update_sampling_rate();
-}
-
-ReceiverModel::Mode ReceiverModel::modulation() const {
-    return mode_;
-}
-
-void ReceiverModel::set_modulation(const Mode v) {
-    mode_ = v;
-    update_modulation();
-}
-
 volume_t ReceiverModel::headphone_volume() const {
     return persistent_memory::headphone_volume();
 }
@@ -157,15 +200,6 @@ void ReceiverModel::set_normalized_headphone_volume(uint8_t v) {
     set_headphone_volume(new_volume);
 }
 
-uint8_t ReceiverModel::squelch_level() const {
-    return squelch_level_;
-}
-
-void ReceiverModel::set_squelch_level(uint8_t v) {
-    squelch_level_ = v;
-    update_modulation();
-}
-
 void ReceiverModel::enable() {
     enabled_ = true;
     radio::set_direction(rf::Direction::Receive);
@@ -193,6 +227,35 @@ void ReceiverModel::disable() {
     led_rx.off();
 }
 
+void ReceiverModel::initialize() {
+    settings_ = settings_t{};
+}
+
+void ReceiverModel::set_configuration_without_update(
+    Mode new_mode,
+    rf::Frequency new_frequency_step,
+    size_t new_am_config_index,
+    size_t new_nbfm_config_index,
+    size_t new_wfm_config_index,
+    uint8_t new_squelch_level) {
+    settings_.mode = new_mode;
+    settings_.frequency_step = new_frequency_step;
+    settings_.am_config_index = new_am_config_index;
+    settings_.nbfm_config_index = new_nbfm_config_index;
+    settings_.wfm_config_index = new_wfm_config_index;
+    settings_.squelch_level = new_squelch_level;
+}
+
+void ReceiverModel::configure_from_app_settings(
+    const app_settings::AppSettings& settings) {
+    settings_.baseband_bandwidth = settings.baseband_bandwidth;
+    settings_.sampling_rate = settings.sampling_rate;
+    settings_.lna_gain_db = settings.lna;
+    settings_.vga_gain_db = settings.vga;
+    settings_.rf_amp = settings.rx_amp;
+    settings_.squelch_level = settings.squelch;
+}
+
 int32_t ReceiverModel::tuning_offset() {
     if ((modulation() == Mode::SpectrumAnalysis)) {
         return 0;
@@ -206,78 +269,8 @@ void ReceiverModel::update_tuning_frequency() {
     radio::set_tuning_frequency(target_frequency() + tuning_offset());
 }
 
-void ReceiverModel::update_antenna_bias() {
-    if (enabled_)
-        radio::set_antenna_bias(portapack::get_antenna_bias());
-}
-
-void ReceiverModel::update_rf_amp() {
-    radio::set_rf_amp(rf_amp_);
-}
-
-void ReceiverModel::update_lna() {
-    radio::set_lna_gain(lna_gain_db_);
-}
-
 void ReceiverModel::update_baseband_bandwidth() {
-    radio::set_baseband_filter_bandwidth(baseband_bandwidth_);
-}
-
-void ReceiverModel::update_vga() {
-    radio::set_vga_gain(vga_gain_db_);
-}
-
-void ReceiverModel::set_am_configuration(const size_t n) {
-    if (n < am_configs.size()) {
-        am_config_index = n;
-        update_modulation();
-    }
-}
-
-void ReceiverModel::set_nbfm_configuration(const size_t n) {
-    if (n < nbfm_configs.size()) {
-        nbfm_config_index = n;
-        update_modulation();
-    }
-}
-
-void ReceiverModel::set_wfm_configuration(const size_t n) {
-    if (n < wfm_configs.size()) {
-        wfm_config_index = n;
-        update_modulation();
-    }
-}
-
-void ReceiverModel::set_configuration_without_update(
-    uint32_t baseband_bandwidth,
-    uint32_t sampling_rate) {
-    baseband_bandwidth_ = baseband_bandwidth;
-    sampling_rate_ = sampling_rate;
-}
-
-void ReceiverModel::set_configuration_without_update(
-    Mode new_mode,
-    rf::Frequency new_frequency_step,
-    size_t new_am_config_index,
-    size_t new_nbfm_config_index,
-    size_t new_wfm_config_index,
-    uint8_t new_squelch_level) {
-    mode_ = new_mode;
-    frequency_step_ = new_frequency_step;
-    am_config_index = new_am_config_index;
-    nbfm_config_index = new_nbfm_config_index;
-    wfm_config_index = new_wfm_config_index;
-    squelch_level_ = new_squelch_level;
-}
-
-void ReceiverModel::configure_from_app_settings(
-    const app_settings::AppSettings& settings) {
-    baseband_bandwidth_ = settings.baseband_bandwidth;
-    sampling_rate_ = settings.sampling_rate;
-    lna_gain_db_ = settings.lna;
-    vga_gain_db_ = settings.vga;
-    rf_amp_ = settings.rx_amp;
-    squelch_level_ = settings.squelch;
+    radio::set_baseband_filter_bandwidth(baseband_bandwidth());
 }
 
 void ReceiverModel::update_sampling_rate() {
@@ -290,8 +283,16 @@ void ReceiverModel::update_sampling_rate() {
     update_tuning_frequency();
 }
 
-void ReceiverModel::update_headphone_volume() {
-    audio::headphone::set_volume(headphone_volume());
+void ReceiverModel::update_lna() {
+    radio::set_lna_gain(lna());
+}
+
+void ReceiverModel::update_vga() {
+    radio::set_vga_gain(vga());
+}
+
+void ReceiverModel::update_rf_amp() {
+    radio::set_rf_amp(rf_amp());
 }
 
 void ReceiverModel::update_modulation() {
@@ -315,26 +316,23 @@ void ReceiverModel::update_modulation() {
     }
 }
 
-size_t ReceiverModel::am_configuration() const {
-    return am_config_index;
-}
-
 void ReceiverModel::update_am_configuration() {
-    am_configs[am_config_index].apply();
-}
-
-size_t ReceiverModel::nbfm_configuration() const {
-    return nbfm_config_index;
+    am_configs[am_configuration()].apply();
 }
 
 void ReceiverModel::update_nbfm_configuration() {
-    nbfm_configs[nbfm_config_index].apply(squelch_level_);
-}
-
-size_t ReceiverModel::wfm_configuration() const {
-    return wfm_config_index;
+    nbfm_configs[nbfm_configuration()].apply(squelch_level());
 }
 
 void ReceiverModel::update_wfm_configuration() {
-    wfm_configs[wfm_config_index].apply();
+    wfm_configs[wfm_configuration()].apply();
+}
+
+void ReceiverModel::update_antenna_bias() {
+    if (enabled_)
+        radio::set_antenna_bias(portapack::get_antenna_bias());
+}
+
+void ReceiverModel::update_headphone_volume() {
+    audio::headphone::set_volume(headphone_volume());
 }

firmware/application/receiver_model.hpp

@@ -1,5 +1,6 @@
 /*
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 Kyle Reed
  *
  * This file is part of PortaPack.
  *
@@ -26,16 +27,16 @@
 #include <cstddef>
 
 #include "app_settings.hpp"
+#include "max283x.hpp"
 #include "message.hpp"
 #include "rf_path.hpp"
-#include "max283x.hpp"
 #include "volume.hpp"
 
 // TODO: consider a base class for ReceiverModel & TransmitterModel.
 // There are multiple values that are actually shared by both.
 class ReceiverModel {
    public:
-    enum class Mode {
+    enum class Mode : uint8_t {
         AMAudio = 0,
         NarrowbandFMAudio = 1,
         WidebandFMAudio = 2,
@@ -43,33 +44,59 @@ class ReceiverModel {
         Capture = 4
     };
 
+    struct settings_t {
+        uint32_t baseband_bandwidth = max283x::filter::bandwidth_minimum;
+        uint32_t sampling_rate = 3'072'000;
+        rf::Frequency frequency_step = 25'000;
+        uint8_t lna_gain_db = 32;
+        uint8_t vga_gain_db = 32;
+        bool rf_amp = false;
+        Mode mode = Mode::NarrowbandFMAudio;
+        uint8_t am_config_index = 0;
+        uint8_t nbfm_config_index = 0;
+        uint8_t wfm_config_index = 0;
+        uint8_t squelch_level = 80;
+    };
+
     /* The frequency to receive (no offset). */
     rf::Frequency target_frequency() const;
     void set_target_frequency(rf::Frequency f);
 
-    rf::Frequency frequency_step() const;
-    void set_frequency_step(rf::Frequency f);
-
-    void set_antenna_bias();
-
-    bool rf_amp() const;
-    void set_rf_amp(bool enabled);
-
-    int32_t lna() const;
-    void set_lna(int32_t v_db);
-
     uint32_t baseband_bandwidth() const;
     void set_baseband_bandwidth(uint32_t v);
 
-    int32_t vga() const;
-    void set_vga(int32_t v_db);
-
     uint32_t sampling_rate() const;
     void set_sampling_rate(uint32_t v);
 
+    rf::Frequency frequency_step() const;
+    void set_frequency_step(rf::Frequency f);
+
+    uint8_t lna() const;
+    void set_lna(uint8_t v_db);
+
+    uint8_t vga() const;
+    void set_vga(uint8_t v_db);
+
+    bool rf_amp() const;
+    void set_rf_amp(bool enabled);
+
     Mode modulation() const;
     void set_modulation(Mode v);
 
+    uint8_t am_configuration() const;
+    void set_am_configuration(uint8_t n);
+
+    uint8_t nbfm_configuration() const;
+    void set_nbfm_configuration(uint8_t n);
+
+    uint8_t wfm_configuration() const;
+    void set_wfm_configuration(uint8_t n);
+
+    uint8_t squelch_level() const;
+    void set_squelch_level(uint8_t v);
+
+    void set_antenna_bias();
+
     volume_t headphone_volume() const;
     void set_headphone_volume(volume_t v);
 
@@ -77,25 +104,11 @@ class ReceiverModel {
     uint8_t normalized_headphone_volume() const;
     void set_normalized_headphone_volume(uint8_t v);
 
-    uint8_t squelch_level() const;
-    void set_squelch_level(uint8_t v);
-
     void enable();
     void disable();
 
-    size_t am_configuration() const;
-    void set_am_configuration(const size_t n);
-
-    size_t nbfm_configuration() const;
-    void set_nbfm_configuration(const size_t n);
-
-    size_t wfm_configuration() const;
-    void set_wfm_configuration(const size_t n);
-
-    /* Sets the model values without updating the radio. */
-    void set_configuration_without_update(
-        uint32_t baseband_bandwidth,
-        uint32_t sampling_rate);
+    /* Resets some members back to default. */
+    void initialize();
 
     void set_configuration_without_update(
         Mode new_mode,
@@ -107,35 +120,30 @@ class ReceiverModel {
 
     void configure_from_app_settings(const app_settings::AppSettings& settings);
 
+    /* Get access to the underlying settings to allow
+     * values to be set directly without calling update. */
+    settings_t& settings() { return settings_; }
+
    private:
-    rf::Frequency frequency_step_{25000};
-    bool enabled_{false};
-    bool rf_amp_{false};
-    int32_t lna_gain_db_{32};
-    uint32_t baseband_bandwidth_{max283x::filter::bandwidth_minimum};
-    int32_t vga_gain_db_{32};
-    Mode mode_{Mode::NarrowbandFMAudio};
-    uint32_t sampling_rate_{3072000};
-    size_t am_config_index = 0;
-    size_t nbfm_config_index = 0;
-    size_t wfm_config_index = 0;
-    uint8_t squelch_level_{80};
+    settings_t settings_{};
+    bool enabled_ = false;
 
     int32_t tuning_offset();
 
     void update_tuning_frequency();
-    void update_antenna_bias();
-    void update_rf_amp();
-    void update_lna();
     void update_baseband_bandwidth();
-    void update_vga();
     void update_sampling_rate();
-    void update_headphone_volume();
+    void update_lna();
+    void update_vga();
+    void update_rf_amp();
 
     void update_modulation();
     void update_am_configuration();
     void update_nbfm_configuration();
     void update_wfm_configuration();
+
+    void update_antenna_bias();
+    void update_headphone_volume();
 };
 
 #endif /*__RECEIVER_MODEL_H__*/

firmware/application/string_format.cpp

@@ -25,16 +25,15 @@
  * and fills it backwards towards the front.
  * The return value 'q' is a pointer to the start.
  * TODO: use std::array for all this. */
+template <typename Int>
 static char* to_string_dec_uint_internal(
     char* p,
-    uint32_t n) {
+    Int n) {
     *p = 0;
     auto q = p;
 
     do {
-        const uint32_t d = n % 10;
-        const char c = d + 48;
-        *(--q) = c;
+        *(--q) = n % 10 + '0';
         n /= 10;
     } while (n != 0);
 
@@ -60,13 +59,36 @@ static char* to_string_dec_uint_pad_internal(
     return q;
 }
 
-char* to_string_dec_uint(const uint32_t n, StringFormatBuffer& buffer, size_t& length) {
+template <typename Int>
+char* to_string_dec_uint_internal(Int n, StringFormatBuffer& buffer, size_t& length) {
     auto end = &buffer.back();
     auto start = to_string_dec_uint_internal(end, n);
     length = end - start;
     return start;
 }
 
+char* to_string_dec_uint(uint32_t n, StringFormatBuffer& buffer, size_t& length) {
+    return to_string_dec_uint_internal(n, buffer, length);
+}
+
+char* to_string_dec_uint64(uint64_t n, StringFormatBuffer& buffer, size_t& length) {
+    return to_string_dec_uint_internal(n, buffer, length);
+}
+
+std::string to_string_dec_uint(uint32_t n) {
+    StringFormatBuffer b{};
+    size_t len{};
+    char* str = to_string_dec_uint(n, b, len);
+    return std::string(str, len);
+}
+
+std::string to_string_dec_uint64(uint64_t n) {
+    StringFormatBuffer b{};
+    size_t len{};
+    char* str = to_string_dec_uint(n, b, len);
+    return std::string(str, len);
+}
+
 std::string to_string_bin(
     const uint32_t n,
     const uint8_t l) {
@@ -177,7 +199,7 @@ static void to_string_hex_internal(char* p, const uint64_t n, const int32_t l) {
 std::string to_string_hex(const uint64_t n, int32_t l) {
     char p[32];
 
-    l = std::min(l, 31L);
+    l = std::min<int32_t>(l, 31);
     to_string_hex_internal(p, n, l - 1);
     p[l] = 0;
     return p;
@@ -285,8 +307,11 @@ static const char* whitespace_str = " \t\r\n";
 
 std::string trim(std::string_view str) {
     auto first = str.find_first_not_of(whitespace_str);
+    if (first == std::string::npos)
+        return {};
+
     auto last = str.find_last_not_of(whitespace_str);
-    return std::string{str.substr(first, last - first)};
+    return std::string{str.substr(first, last - first + 1)};
 }
 
 std::string trimr(std::string_view str) {
@@ -296,4 +321,4 @@ std::string trimr(std::string_view str) {
 
 std::string truncate(std::string_view str, size_t length) {
     return std::string{str.length() <= length ? str : str.substr(0, length)};
-}
+}

firmware/application/string_format.hpp

@@ -41,20 +41,25 @@ enum TimeFormat {
 
 const char unit_prefix[7]{'n', 'u', 'm', 0, 'k', 'M', 'G'};
 
-using StringFormatBuffer = std::array<char, 16>;
+using StringFormatBuffer = std::array<char, 24>;
 
-/* uint32_t conversion without memory allocations. */
-char* to_string_dec_uint(const uint32_t n, StringFormatBuffer& buffer, size_t& length);
+/* uint conversion without memory allocations. */
+char* to_string_dec_uint(uint32_t n, StringFormatBuffer& buffer, size_t& length);
+char* to_string_dec_uint64(uint64_t n, StringFormatBuffer& buffer, size_t& length);
+
+std::string to_string_dec_uint(uint32_t n);
+std::string to_string_dec_uint64(uint64_t n);
 
 // TODO: Allow l=0 to not fill/justify? Already using this way in ui_spectrum.hpp...
 std::string to_string_bin(const uint32_t n, const uint8_t l = 0);
-std::string to_string_dec_uint(const uint32_t n, const int32_t l = 0, const char fill = ' ');
+std::string to_string_dec_uint(const uint32_t n, const int32_t l, const char fill = ' ');
 std::string to_string_dec_int(const int32_t n, const int32_t l = 0, const char fill = 0);
 std::string to_string_decimal(float decimal, int8_t precision);
 
 std::string to_string_hex(const uint64_t n, const int32_t l = 0);
 std::string to_string_hex_array(uint8_t* const array, const int32_t l = 0);
 
+// NB: These pad-left and don't work correctly for values less than 1M.
 std::string to_string_freq(const uint64_t f);
 std::string to_string_short_freq(const uint64_t f);
 std::string to_string_time_ms(const uint32_t ms);

firmware/application/tone_key.cpp

@@ -25,86 +25,71 @@
 
 namespace tonekey {
 
+// Keep list in ascending order by tone frequency
 const tone_key_t tone_keys = {
-    {"None", 0.0},
-    {"0 XZ", 67.000},
-    {"1 WZ", 69.400},
-    {"2 XA", 71.900},
-    {"3 WA", 74.400},
-    {"4 XB", 77.000},
-    {"5 WB", 79.700},
-    {"6 YZ", 82.500},
-    {"7 YA", 85.400},
-    {"8 YB", 88.500},
-    {"9 ZZ", 91.500},
-    {"10 ZA", 94.800},
-    {"11 ZB", 97.400},
-    {"12 1Z", 100.000},
-    {"13 1A", 103.500},
-    {"14 1B", 107.200},
-    {"15 2Z", 110.900},
-    {"16 2A", 114.800},
-    {"17 2B", 118.800},
-    {"18 3Z", 123.000},
-    {"19 3A", 127.300},
-    {"20 3B", 131.800},
-    {"21 4Z", 136.500},
-    {"22 4A", 141.300},
-    {"23 4B", 146.200},
-    {"24 5Z", 151.400},
-    {"25 5A", 156.700},
-    {"40 --", 159.800},
-    {"26 5B", 162.200},
-    {"41 --", 165.500},
-    {"27 6Z", 167.900},
-    {"42 --", 171.300},
-    {"28 6A", 173.800},
-    {"43 --", 177.300},
-    {"29 6B", 179.900},
-    {"44 --", 183.500},
-    {"30 7Z", 186.200},
-    {"45 --", 189.900},
-    {"31 7A", 192.800},
-    {"46 --", 196.600},
-    {"47 --", 199.500},
-    {"32 M1", 203.500},
-    {"48 8Z", 206.500},
-    {"33 M2", 210.700},
-    {"34 M3", 218.100},
-    {"35 M4", 225.700},
-    {"49 9Z", 229.100},
-    {"36 --", 233.600},
-    {"37 --", 241.800},
-    {"38 --", 250.300},
-    {"50 0Z", 254.100},
-    {"Axient 28kHz", 28000.0},
-    {"Senn. 32.768k", 32768.0},
-    {"Senn. 32.000k", 32000.0},
-    {"Sony 32.382k", 32382.0},
-    {"Shure 19kHz", 19000.0}};
+    {"None", F2Ix100(0.0)},
+    {"1 XZ", F2Ix100(67.0)},
+    {"39 WZ", F2Ix100(69.3)},
+    {"2 XA", F2Ix100(71.9)},
+    {"3 WA", F2Ix100(74.4)},
+    {"4 XB", F2Ix100(77.0)},
+    {"5 WB", F2Ix100(79.7)},
+    {"6 YZ", F2Ix100(82.5)},
+    {"7 YA", F2Ix100(85.4)},
+    {"8 YB", F2Ix100(88.5)},
+    {"9 ZZ", F2Ix100(91.5)},
+    {"10 ZA", F2Ix100(94.8)},
+    {"11 ZB", F2Ix100(97.4)},
+    {"12 1Z", F2Ix100(100.0)},
+    {"13 1A", F2Ix100(103.5)},
+    {"14 1B", F2Ix100(107.2)},
+    {"15 2Z", F2Ix100(110.9)},
+    {"16 2A", F2Ix100(114.8)},
+    {"17 2B", F2Ix100(118.8)},
+    {"18 3Z", F2Ix100(123.0)},
+    {"19 3A", F2Ix100(127.3)},
+    {"20 3B", F2Ix100(131.8)},
+    {"21 4Z", F2Ix100(136.5)},
+    {"22 4A", F2Ix100(141.3)},
+    {"23 4B", F2Ix100(146.2)},
+    {"24 5Z", F2Ix100(151.4)},
+    {"25 5A", F2Ix100(156.7)},
+    {"40 --", F2Ix100(159.8)},
+    {"26 5B", F2Ix100(162.2)},
+    {"41 --", F2Ix100(165.5)},
+    {"27 6Z", F2Ix100(167.9)},
+    {"42 --", F2Ix100(171.3)},
+    {"28 6A", F2Ix100(173.8)},
+    {"43 --", F2Ix100(177.3)},
+    {"29 6B", F2Ix100(179.9)},
+    {"44 --", F2Ix100(183.5)},
+    {"30 7Z", F2Ix100(186.2)},
+    {"45 --", F2Ix100(189.9)},
+    {"31 7A", F2Ix100(192.8)},
+    {"46 --", F2Ix100(196.6)},
+    {"47 --", F2Ix100(199.5)},
+    {"32 M1", F2Ix100(203.5)},
+    {"48 8Z", F2Ix100(206.5)},
+    {"33 M2", F2Ix100(210.7)},
+    {"34 M3", F2Ix100(218.1)},
+    {"35 M4", F2Ix100(225.7)},
+    {"49 9Z", F2Ix100(229.1)},
+    {"36 M5", F2Ix100(233.6)},
+    {"37 M6", F2Ix100(241.8)},
+    {"38 M7", F2Ix100(250.3)},
+    {"50 0Z", F2Ix100(254.1)},
+    {"Shure 19kHz", F2Ix100(19000.0)},
+    {"Axient 28kHz", F2Ix100(28000.0)},
+    {"Senn. 32.000k", F2Ix100(32000.0)},
+    {"Sony 32.382k", F2Ix100(32382.0)},
+    {"Senn. 32.768k", F2Ix100(32768.0)}};
 
-void tone_keys_populate(OptionsField& field) {
-    using option_t = std::pair<std::string, int32_t>;
-    using options_t = std::vector<option_t>;
-    options_t tone_key_options;
-    std::string tone_name;
-
-    for (size_t c = 0; c < tone_keys.size(); c++) {
-        if (c && c < 51) {
-            auto f = tone_keys[c].second;
-            tone_name = "CTCSS " + tone_keys[c].first + " " + to_string_dec_uint(f) + "." + to_string_dec_uint((uint32_t)(f * 10) % 10);
-        } else {
-            tone_name = tone_keys[c].first;
-        }
-
-        tone_key_options.emplace_back(tone_name, c);
-    }
-
-    field.set_options(tone_key_options);
+std::string fx100_string(uint32_t f) {
+    return to_string_dec_uint(f / 100) + "." + to_string_dec_uint((f / 10) % 10);
 }
 
-float tone_key_frequency(const tone_index index) {
-    return tone_keys[index].second;
+float tone_key_frequency(tone_index index) {
+    return float(tone_keys[index].second) / 100.0;
 }
 
 std::string tone_key_string(tone_index index) {
@@ -113,19 +98,89 @@ std::string tone_key_string(tone_index index) {
     return tone_keys[index].first;
 }
 
+// Return string showing frequency only from specific table index
+std::string tone_key_value_string(tone_index index) {
+    if (index < 0 || (unsigned)index >= tone_keys.size())
+        return std::string("");
+    return fx100_string(tone_keys[index].second);
+}
+
+// Return variable-length string showing CTCSS tone from tone frequency
+// Value is in 0.01 Hz units
+std::string tone_key_string_by_value(uint32_t value, size_t max_length) {
+    static uint8_t tone_display_toggle{0};
+    static uint32_t last_value;
+    tone_index idx;
+    std::string freq_str;
+
+    // If >10Hz difference between consecutive samples, it's probably noise, so ignore
+    if (abs(value - last_value) > 10 * 100) {
+        last_value = value;
+        tone_display_toggle = 0;
+        return "        ";
+    }
+    last_value = value;
+
+    // Only display 1/10 Hz accuracy if <1000 Hz; max 5 characters
+    if (value < 1000 * 100)
+        freq_str = "T:" + fx100_string(value);
+    else
+        freq_str = "T:" + to_string_dec_uint(value / 100);
+
+    // Check field length is enough for character counts in the string below
+    if (max_length >= 7 + 2 + 5) {
+        idx = tone_key_index_by_value(value);
+        if (idx != -1)
+            return freq_str + " #" + tone_key_string(idx);
+    } else {
+        // Not enough space; toggle between display of tone received and tone code #
+        if (tone_display_toggle++ >= TONE_DISPLAY_TOGGLE_COUNTER) {
+            if (tone_display_toggle >= TONE_DISPLAY_TOGGLE_COUNTER * 2) tone_display_toggle = 0;
+
+            // Look for a match in the table (otherwise just display frequency)
+            idx = tone_key_index_by_value(value);
+            if (idx != -1)
+                return "T:" + tone_key_string(idx);
+        }
+    }
+    return freq_str;
+}
+
+// Search tone_key table for tone frequency value
+// Value is in 0.01 Hz units
+tone_index tone_key_index_by_value(uint32_t value) {
+    uint32_t diff;
+    uint32_t min_diff{UINT32_MAX};
+    tone_index min_idx{-1};
+    tone_index idx;
+
+    // Find nearest match
+    for (idx = 0; idx < (tone_index)tone_keys.size(); idx++) {
+        diff = abs(value - tone_keys[idx].second);
+        if (diff < min_diff) {
+            min_idx = idx;
+            min_diff = diff;
+        } else {
+            // list is sorted in frequency order; if diff is getting larger than we've passed it
+            break;
+        }
+    }
+
+    // Arbitrary confidence threshold
+    if (min_diff < TONE_FREQ_TOLERANCE_CENTIHZ)
+        return min_idx;
+    else
+        return -1;
+}
+
 tone_index tone_key_index_by_string(char* str) {
     if (!str)
         return -1;
     for (tone_index index = 0; (unsigned)index < tone_keys.size(); index++) {
-        if (tone_keys[index].first.compare(str) >= 0)
+        if (tone_keys[index].first.compare(str) >= 0)  // TODO: why >=?
             return index;
     }
     return -1;
 }
 
-/* tone_index tone_key_index_by_value( int32_t freq )
-{
-        return -1 ;
-} */
-
 }  // namespace tonekey

firmware/application/tone_key.hpp

@@ -23,25 +23,28 @@
 #ifndef __TONE_KEY_H_
 #define __TONE_KEY_H_
 
-#include "ui.hpp"
-#include "ui_widget.hpp"
-
-using namespace ui;
+#include <cstdint>
+#include <string>
+#include <vector>
 
 namespace tonekey {
 
-typedef int16_t tone_index;
+#define TONE_FREQ_TOLERANCE_CENTIHZ (4 * 100)
+#define TONE_DISPLAY_TOGGLE_COUNTER 3
+#define F2Ix100(x) (int32_t)(x * 100.0)
 
-using tone_key_t = std::vector<std::pair<std::string, float>>;
+using tone_index = int32_t;
+using tone_key_t = std::vector<std::pair<std::string, uint32_t>>;
 
 extern const tone_key_t tone_keys;
 
-void tone_keys_populate(OptionsField& field);
-float tone_key_frequency(const tone_index index);
+float tone_key_frequency(tone_index index);
 
-std::string tone_key_string(const tone_index index);
-tone_index tone_key_index_by_string(char* str);
-// tone_index tone_key_index_by_value( int32_t freq );
+std::string fx100_string(uint32_t f);
+std::string tone_key_string(tone_index index);
+std::string tone_key_value_string(tone_index index);
+std::string tone_key_string_by_value(uint32_t value, size_t max_length);
+tone_index tone_key_index_by_value(uint32_t value);
 
 }  // namespace tonekey
 

firmware/application/transmitter_model.cpp

@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
  * Copyright (C) 2016 Furrtek
+ * Copyright (C) 2023 Kyle Reed
  *
  * This file is part of PortaPack.
  *
@@ -22,15 +23,13 @@
 
 #include "transmitter_model.hpp"
 
+#include "audio.hpp"
 #include "baseband_api.hpp"
-
-#include "portapack_persistent_memory.hpp"
+#include "event_m0.hpp"
 #include "hackrf_gpio.hpp"
 #include "portapack.hpp"
-#include "rtc_time.hpp"
-#include "event_m0.hpp"
+#include "portapack_persistent_memory.hpp"
 #include "radio.hpp"
-#include "audio.hpp"
 
 using namespace hackrf::one;
 using namespace portapack;
@@ -44,75 +43,52 @@ void TransmitterModel::set_target_frequency(rf::Frequency f) {
     update_tuning_frequency();
 }
 
-void TransmitterModel::set_antenna_bias() {
-    update_antenna_bias();
-}
-
-bool TransmitterModel::rf_amp() const {
-    return rf_amp_;
-}
-
-void TransmitterModel::set_rf_amp(bool enabled) {
-    rf_amp_ = enabled;
-    update_rf_amp();
-}
-
-int32_t TransmitterModel::lna() const {
-    return lna_gain_db_;
-}
-
-void TransmitterModel::set_lna(int32_t v_db) {
-    lna_gain_db_ = v_db;
-    update_lna();
-}
-
 uint32_t TransmitterModel::baseband_bandwidth() const {
-    return baseband_bandwidth_;
+    return settings_.baseband_bandwidth;
 }
 
 void TransmitterModel::set_baseband_bandwidth(uint32_t v) {
-    baseband_bandwidth_ = v;
+    settings_.baseband_bandwidth = v;
     update_baseband_bandwidth();
 }
 
-int32_t TransmitterModel::vga() const {
-    return vga_gain_db_;
-}
-
-void TransmitterModel::set_vga(int32_t v_db) {
-    vga_gain_db_ = v_db;
-    update_vga();
-}
-
-uint32_t TransmitterModel::channel_bandwidth() const {
-    return channel_bandwidth_;
-}
-
-void TransmitterModel::set_channel_bandwidth(uint32_t v) {
-    channel_bandwidth_ = v;
-}
-
 uint32_t TransmitterModel::sampling_rate() const {
-    return sampling_rate_;
+    return settings_.sampling_rate;
 }
 
 void TransmitterModel::set_sampling_rate(uint32_t v) {
-    sampling_rate_ = v;
+    settings_.sampling_rate = v;
     update_sampling_rate();
 }
 
-int32_t TransmitterModel::tx_gain() const {
-    return tx_gain_db_;
+uint32_t TransmitterModel::channel_bandwidth() const {
+    return settings_.channel_bandwidth;
 }
 
-void TransmitterModel::set_tx_gain(int32_t v_db) {
-    tx_gain_db_ = v_db;
+void TransmitterModel::set_channel_bandwidth(uint32_t v) {
+    settings_.channel_bandwidth = v;
+}
+
+uint8_t TransmitterModel::tx_gain() const {
+    return settings_.tx_gain_db;
+}
+
+void TransmitterModel::set_tx_gain(uint8_t v_db) {
+    settings_.tx_gain_db = v_db;
     update_tx_gain();
 }
 
-void TransmitterModel::on_tick_second() {
-    if (portapack::persistent_memory::stealth_mode())
-        led_tx.toggle();
+bool TransmitterModel::rf_amp() const {
+    return settings_.rf_amp;
+}
+
+void TransmitterModel::set_rf_amp(bool enabled) {
+    settings_.rf_amp = enabled;
+    update_rf_amp();
+}
+
+void TransmitterModel::set_antenna_bias() {
+    update_antenna_bias();
 }
 
 void TransmitterModel::enable() {
@@ -121,8 +97,6 @@ void TransmitterModel::enable() {
     update_tuning_frequency();
     update_antenna_bias();
     update_rf_amp();
-    update_lna();
-    update_vga();
     update_baseband_bandwidth();
     update_sampling_rate();
     update_tx_gain();
@@ -147,53 +121,25 @@ void TransmitterModel::disable() {
     led_tx.off();
 }
 
-void TransmitterModel::set_configuration_without_update(
-    uint32_t baseband_bandwidth,
-    uint32_t sampling_rate) {
-    baseband_bandwidth_ = baseband_bandwidth;
-    sampling_rate_ = sampling_rate;
+void TransmitterModel::initialize() {
+    settings_ = settings_t{};
 }
 
 void TransmitterModel::configure_from_app_settings(
     const app_settings::AppSettings& settings) {
-    baseband_bandwidth_ = settings.baseband_bandwidth;
-    channel_bandwidth_ = settings.channel_bandwidth;
-    tx_gain_db_ = settings.tx_gain;
-    rf_amp_ = settings.tx_amp;
-
-    // TODO: Do these make sense for TX?
-    lna_gain_db_ = settings.lna;
-    vga_gain_db_ = settings.vga;
-    sampling_rate_ = settings.sampling_rate;
+    settings_.baseband_bandwidth = settings.baseband_bandwidth;
+    settings_.sampling_rate = settings.sampling_rate;
+    settings_.channel_bandwidth = settings.channel_bandwidth;
+    settings_.tx_gain_db = settings.tx_gain;
+    settings_.rf_amp = settings.tx_amp;
 }
 
 void TransmitterModel::update_tuning_frequency() {
     radio::set_tuning_frequency(target_frequency());
 }
 
-void TransmitterModel::update_antenna_bias() {
-    if (enabled_)
-        radio::set_antenna_bias(portapack::get_antenna_bias());
-}
-
-void TransmitterModel::update_rf_amp() {
-    radio::set_rf_amp(rf_amp_);
-}
-
-void TransmitterModel::update_lna() {
-    radio::set_lna_gain(lna_gain_db_);
-}
-
 void TransmitterModel::update_baseband_bandwidth() {
-    radio::set_baseband_filter_bandwidth(baseband_bandwidth_);
-}
-
-void TransmitterModel::update_vga() {
-    radio::set_vga_gain(vga_gain_db_);
-}
-
-void TransmitterModel::update_tx_gain() {
-    radio::set_tx_gain(tx_gain_db_);
+    radio::set_baseband_filter_bandwidth(baseband_bandwidth());
 }
 
 void TransmitterModel::update_sampling_rate() {
@@ -206,3 +152,21 @@ void TransmitterModel::update_sampling_rate() {
     radio::set_baseband_rate(sampling_rate());
     update_tuning_frequency();
 }
+
+void TransmitterModel::update_tx_gain() {
+    radio::set_tx_gain(tx_gain());
+}
+
+void TransmitterModel::update_rf_amp() {
+    radio::set_rf_amp(rf_amp());
+}
+
+void TransmitterModel::update_antenna_bias() {
+    if (enabled_)
+        radio::set_antenna_bias(portapack::get_antenna_bias());
+}
+
+void TransmitterModel::on_tick_second() {
+    if (portapack::persistent_memory::stealth_mode())
+        led_tx.toggle();
+}

firmware/application/transmitter_model.hpp

@@ -1,6 +1,7 @@
 /*
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
  * Copyright (C) 2016 Furrtek
+ * Copyright (C) 2023 Kyle Reed
  *
  * This file is part of PortaPack.
  *
@@ -26,77 +27,68 @@
 #include <cstdint>
 #include <cstddef>
 
-#include "receiver_model.hpp"
 #include "app_settings.hpp"
-#include "message.hpp"
-#include "rf_path.hpp"
 #include "max2837.hpp"
-#include "volume.hpp"
+#include "message.hpp"
+#include "receiver_model.hpp"
+#include "rf_path.hpp"
 #include "signal.hpp"
 
 class TransmitterModel {
    public:
+    struct settings_t {
+        uint32_t baseband_bandwidth = max283x::filter::bandwidth_minimum;
+        uint32_t sampling_rate = 3'072'000;
+        uint32_t channel_bandwidth = 1;
+        /* 35 should give approx 1m transmission range. */
+        uint8_t tx_gain_db = 35;
+        bool rf_amp = false;
+    };
+
     /* The frequency to transmit on. */
     rf::Frequency target_frequency() const;
     void set_target_frequency(rf::Frequency f);
 
-    void set_antenna_bias();
-
-    bool rf_amp() const;
-    void set_rf_amp(bool enabled);
-
-    // TODO: does this make sense on TX?
-    int32_t lna() const;
-    void set_lna(int32_t v_db);
-
     uint32_t baseband_bandwidth() const;
     void set_baseband_bandwidth(uint32_t v);
 
-    // TODO: does this make sense on TX?
-    int32_t vga() const;
-    void set_vga(int32_t v_db);
-
-    int32_t tx_gain() const;
-    void set_tx_gain(int32_t v_db);
-
     // TODO: Doesn't actually affect radio.
     uint32_t channel_bandwidth() const;
     void set_channel_bandwidth(uint32_t v);
 
-    // TODO: does this make sense on TX?
     uint32_t sampling_rate() const;
     void set_sampling_rate(uint32_t v);
 
+    uint8_t tx_gain() const;
+    void set_tx_gain(uint8_t v_db);
+
+    bool rf_amp() const;
+    void set_rf_amp(bool enabled);
+
+    void set_antenna_bias();
+
     void enable();
     void disable();
 
-    /* Sets the model values without updating the radio. */
-    void set_configuration_without_update(
-        uint32_t baseband_bandwidth,
-        uint32_t sampling_rate);
+    void initialize();
 
     void configure_from_app_settings(const app_settings::AppSettings& settings);
 
+    /* Get access to the underlying settings to allow
+     * values to be set directly without calling update. */
+    settings_t& settings() { return settings_; }
+
    private:
-    bool enabled_{false};
-    bool rf_amp_{false};
-    int32_t lna_gain_db_{0};
-    uint32_t channel_bandwidth_{1};
-    uint32_t baseband_bandwidth_{max2837::filter::bandwidth_minimum};
-    int32_t vga_gain_db_{8};
-    /* 35 should give approx 1m transmission range. */
-    int32_t tx_gain_db_{35};
-    uint32_t sampling_rate_{3072000};
+    settings_t settings_{};
+    bool enabled_ = false;
     SignalToken signal_token_tick_second{};
 
     void update_tuning_frequency();
-    void update_antenna_bias();
-    void update_rf_amp();
-    void update_lna();
     void update_baseband_bandwidth();
-    void update_vga();
-    void update_tx_gain();
     void update_sampling_rate();
+    void update_tx_gain();
+    void update_rf_amp();
+    void update_antenna_bias();
     void on_tick_second();
 };
 

firmware/application/ui/ui_alphanum.cpp

@@ -37,9 +37,13 @@ AlphanumView::AlphanumView(
     : TextEntryView(nav, str, max_length) {
     size_t n;
 
-    add_children({&button_mode,
-                  &text_raw,
-                  &field_raw});
+    add_children({
+        &labels,
+        &field_raw,
+        &text_raw_to_char,
+        &button_delete,
+        &button_mode,
+    });
 
     const auto button_fn = [this](Button& button) {
         this->on_button(button);
@@ -65,10 +69,19 @@ AlphanumView::AlphanumView(
         set_mode(mode + 1);
     };
 
+    button_delete.on_select = [this](Button&) {
+        char_delete();
+    };
+
     field_raw.set_value('0');
     field_raw.on_select = [this](NumberField&) {
         char_add(field_raw.value());
     };
+
+    // make text_raw_to_char widget display the char value from field_raw
+    field_raw.on_change = [this](auto) {
+        text_raw_to_char.set(std::string{static_cast<char>(field_raw.value())});
+    };
 }
 
 void AlphanumView::set_mode(const uint32_t new_mode) {
@@ -96,11 +109,7 @@ void AlphanumView::set_mode(const uint32_t new_mode) {
 
 void AlphanumView::on_button(Button& button) {
     const auto c = button.text()[0];
-
-    if (c == '<')
-        char_delete();
-    else
-        char_add(c);
+    char_add(c);
 }
 
 bool AlphanumView::on_encoder(const EncoderEvent delta) {

firmware/application/ui/ui_alphanum.hpp

@@ -43,14 +43,14 @@ class AlphanumView : public TextEntryView {
     bool on_encoder(const EncoderEvent delta) override;
 
    private:
-    const char* const keys_upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ, .<";
-    const char* const keys_lower = "abcdefghijklmnopqrstuvwxyz, .<";
-    const char* const keys_digit = "0123456789!\"#'()*+-/:;=>?@[\\]<";
+    const char* const keys_upper = "ABCDEFGHIJKLMNOPQRSTUVWXYZ, ._";
+    const char* const keys_lower = "abcdefghijklmnopqrstuvwxyz, ._";
+    const char* const keys_digit = "0123456789!\"#'()*+-/:;=<>@[\\]?";
 
     const std::pair<std::string, const char*> key_sets[3] = {
-        {"Upper", keys_upper},
-        {"Lower", keys_lower},
-        {"Digit", keys_digit}};
+        {"ABC", keys_upper},
+        {"abc", keys_lower},
+        {"123", keys_digit}};
 
     int16_t focused_button = 0;
     uint32_t mode = 0;  // Uppercase
@@ -60,13 +60,10 @@ class AlphanumView : public TextEntryView {
 
     std::array<Button, 30> buttons{};
 
-    Button button_mode{
-        {21 * 8, 33 * 8, 8 * 8, 32},
-        ""};
+    Labels labels{
+        {{1 * 8, 33 * 8}, "Raw:", Color::light_grey()},
+        {{1 * 8, 35 * 8}, "AKA:", Color::light_grey()}};
 
-    Text text_raw{
-        {1 * 8, 33 * 8, 4 * 8, 16},
-        "Raw:"};
     NumberField field_raw{
         {5 * 8, 33 * 8},
         3,
@@ -74,9 +71,17 @@ class AlphanumView : public TextEntryView {
         1,
         '0'};
 
-    Button button_ok{
-        {10 * 8, 33 * 8, 9 * 8, 32},
-        "OK"};
+    Text text_raw_to_char{
+        {5 * 8, 35 * 8, 4 * 8, 16},
+        "0"};
+
+    Button button_delete{
+        {9 * 8, 33 * 8, 6 * 8, 32},
+        "<DEL"};
+
+    Button button_mode{
+        {16 * 8, 33 * 8, 5 * 8, 32},
+        ""};
 };
 
 } /* namespace ui */

firmware/application/ui/ui_freq_field.hpp

@@ -40,15 +40,14 @@ class BoundFrequencyField : public FrequencyField {
    public:
     decltype(FrequencyField::on_change) updated{};
 
-    BoundFrequencyField(Point parent_pos, NavigationView& nav, bool update_model = true)
+    BoundFrequencyField(Point parent_pos, NavigationView& nav)
         : FrequencyField(parent_pos) {
         // NB: There is no frequency_step on the tx_model.
         set_step(portapack::receiver_model.frequency_step());
         set_value(model->target_frequency());
 
-        on_change = [this, update_model](rf::Frequency f) {
-            if (update_model)
-                model->set_target_frequency(f);
+        on_change = [this](rf::Frequency f) {
+            model->set_target_frequency(f);
             if (updated)
                 updated(f);
         };

firmware/application/ui/ui_freqlist.cpp

@@ -1,5 +1,7 @@
 /*
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 gullradriel, Nilorea Studio Inc.
+ * Copyright (C) 2023 Kyle Reed
  *
  * This file is part of PortaPack.
  *
@@ -24,154 +26,143 @@
 #include "baseband_api.hpp"
 #include "utility.hpp"
 
-#include <algorithm>
-
 namespace ui {
-FreqManUIList::FreqManUIList(
-    Rect parent_rect,
-    bool instant_exec)
+
+FreqManUIList::FreqManUIList(Rect parent_rect)
     : Widget{parent_rect},
-      instant_exec_{instant_exec} {
+      visible_lines_{(unsigned)parent_rect.height() / char_height} {
     this->set_focusable(true);
 }
 
-void FreqManUIList::set_highlighted_index(int index) {
-    if ((unsigned)(current_index + index) >= freqlist_db.size())
-        return;
-    if (index < 0) {
-        index = 0;
-        if (current_index > 0)
-            current_index--;
-    }
-    if (index >= freqlist_nb_lines) {
-        index = freqlist_nb_lines - 1;
-        if ((unsigned)(current_index + index) < freqlist_db.size())
-            current_index++;
-        else
-            current_index = freqlist_db.size() - freqlist_nb_lines - 1;
-    }
-    highlighted_index = index;
-}
-
-uint8_t FreqManUIList::get_index() {
-    return current_index + highlighted_index;
-}
-
 void FreqManUIList::paint(Painter& painter) {
-    freqlist_nb_lines = 0;
-    const auto r = screen_rect();
-    uint8_t focused = has_focus();
-    const Rect r_widget_screen{r.left() + focused, r.top() + focused, r.width() - 2 * focused, r.height() - 2 * +focused};
-    painter.fill_rectangle(
-        r_widget_screen,
-        Color::black());
-    // only return after clearing the screen so previous entries are not shown anymore
-    if (freqlist_db.size() == 0)
+    auto rect = screen_rect();
+
+    if (!db_ || db_->empty()) {
+        auto line_position = rect.location() + Point{7 * 8, 6 * 16};
+        painter.fill_rectangle(rect, Color::black());
+        painter.draw_string(line_position, Styles::white, "Empty Category");
         return;
-    // coloration if file is too big
-    auto text_color = &Styles::white;
-    if (freqlist_db.size() > FREQMAN_MAX_PER_FILE)
-        text_color = &Styles::yellow;
-    uint8_t nb_lines = 0;
-    for (uint8_t it = current_index; it < freqlist_db.size(); it++) {
-        uint8_t line_height = (int)nb_lines * char_height;
-        if (line_height < (r.height() - char_height)) {  // line is within the widget
-            std::string description = freqman_item_string(freqlist_db[it], 30);
-            if (nb_lines == highlighted_index) {
-                const Rect r_highlighted_freq{0, r.location().y() + (int)nb_lines * char_height, 240, char_height};
-                painter.fill_rectangle(
-                    r_highlighted_freq,
-                    Color::white());
-                painter.draw_string(
-                    {0, r.location().y() + (int)nb_lines * char_height},
-                    Styles::bg_white, description);
-            } else {
-                painter.draw_string(
-                    {0, r.location().y() + (int)nb_lines * char_height},
-                    *text_color, description);
-            }
+    }
 
-            nb_lines++;
-        } else {
-            // rect is filled, we can break
-            break;
-        }
-    }
-    freqlist_nb_lines = nb_lines;
-    if (has_focus() || highlighted()) {
-        const Rect r_focus{r.left(), r.top(), r.width(), r.height()};
-        painter.draw_rectangle(
-            r_focus,
-            Color::white());
-    }
-}
+    // Indicate when a file is too large by drawing in yellow.
+    auto over_max = db_->entry_count() > freqman_default_max_entries;
+    auto base_style = over_max ? &Styles::yellow : &Styles::white;
 
-void FreqManUIList::set_db(freqman_db& db) {
-    freqlist_db = db;
-    if (db.size() == 0) {
-        current_index = 0;
-        highlighted_index = 0;
-    } else {
-        if ((unsigned)(current_index + highlighted_index) >= db.size()) {
-            current_index = db.size() - 1 - highlighted_index;
-        }
-        if (current_index < 0) {
-            current_index = 0;
-            if (highlighted_index > 0)
-                highlighted_index--;
+    // TODO: could minimize redraw/re-read if necessary
+    //       with better change tracking.
+    for (auto offset = 0u; offset < visible_lines_; ++offset) {
+        // The whole frame needs to be cleared so every line 'slot'
+        // is redrawn even when `text` just left empty.
+        auto text = std::string{};
+        auto index = start_index_ + offset;
+        auto line_position = rect.location() + Point{4, 1 + (int)offset * char_height};
+
+        // Highlight the selected item.
+        auto style = (offset == selected_index_) ? &Styles::bg_white : base_style;
+
+        if (index < db_->entry_count()) {
+            auto entry = (*db_)[index];
+            // db_ is directly backed by a file, so invalid lines cannot be
+            // pre-filtered. Just show an empty 'slot' in this case.
+            if (entry.type != freqman_type::Unknown)
+                text = pretty_string(entry, line_max_length);
         }
+
+        // Pad right with ' ' so trailing chars are cleaned up.
+        // draw_glyph has less flicker than fill_rect when drawing.
+        if (text.length() < line_max_length)
+            text.resize(line_max_length, ' ');
+
+        painter.draw_string(line_position, *style, text);
     }
+
+    // Draw a bounding rectangle when focused.
+    painter.draw_rectangle(rect, (has_focus() ? Color::white() : Color::black()));
 }
 
 void FreqManUIList::on_focus() {
-    if (on_highlight)
-        on_highlight(*this);
+    set_dirty();
+}
+
+void FreqManUIList::on_blur() {
+    set_dirty();
 }
 
 bool FreqManUIList::on_key(const KeyEvent key) {
-    if (key == KeyEvent::Select) {
-        if (on_select) {
-            on_select(*this);
-            return true;
-        }
-    } else {
-        if (on_dir) {
-            return on_dir(*this, key);
-        }
-    }
-    return false;
-}
+    if (!db_ || db_->empty())
+        return false;
 
-bool FreqManUIList::on_touch(const TouchEvent event) {
-    switch (event.type) {
-        case TouchEvent::Type::Start:
-            set_highlighted(true);
-            set_dirty();
-            if (on_touch_press) {
-                on_touch_press(*this);
-            }
-            if (on_select && instant_exec_) {
-                on_select(*this);
-            }
-            return true;
-        case TouchEvent::Type::End:
-            set_highlighted(false);
-            set_dirty();
-            if (on_touch_release) {
-                on_touch_release(*this);
-            }
-            if (on_select && !instant_exec_) {
-                on_select(*this);
-            }
-            return true;
-        default:
-            return false;
+    if (key == KeyEvent::Select && on_select) {
+        on_select(get_index());
+        return true;
+    } else if (key == KeyEvent::Right && on_leave) {
+        on_leave();
+        return true;
     }
-}
 
-bool FreqManUIList::on_encoder(EncoderEvent delta) {
-    set_highlighted_index((int)highlighted_index + delta);
+    auto delta = 0;
+    if (key == KeyEvent::Up && get_index() > 0)
+        delta = -1;
+    else if (key == KeyEvent::Down && get_index() < db_->entry_count() - 1)
+        delta = 1;
+    else
+        return false;
+
+    adjust_selected_index(delta);
     set_dirty();
     return true;
 }
+
+bool FreqManUIList::on_encoder(EncoderEvent delta) {
+    if (!db_ || db_->empty())
+        return false;
+
+    adjust_selected_index(delta);
+    set_dirty();
+    return true;
+}
+
+void FreqManUIList::set_parent_rect(Rect new_parent_rect) {
+    visible_lines_ = new_parent_rect.height() / char_height;
+    Widget::set_parent_rect(new_parent_rect);
+}
+
+void FreqManUIList::set_index(size_t index) {
+    start_index_ = 0;
+    selected_index_ = 0;
+    adjust_selected_index(index);
+}
+
+size_t FreqManUIList::get_index() const {
+    return start_index_ + selected_index_;
+}
+
+void FreqManUIList::set_db(FreqmanDB& db) {
+    db_ = &db;
+    start_index_ = 0;
+    selected_index_ = 0;
+    set_dirty();
+}
+
+void FreqManUIList::adjust_selected_index(int delta) {
+    int32_t new_index = selected_index_ + delta;
+
+    // The selection went off the top of the screen, move up.
+    if (new_index < 0) {
+        start_index_ = std::max<int32_t>(start_index_ + new_index, 0);
+        selected_index_ = 0;
+    }
+
+    // Selection is off the bottom of the screen, move down.
+    else if (new_index >= (int32_t)visible_lines_) {
+        start_index_ = std::min<int32_t>(start_index_ + delta, db_->entry_count() - visible_lines_);
+        selected_index_ = visible_lines_ - 1;
+    }
+
+    // Otherwise, scroll within the screen, but not past the end.
+    else {
+        selected_index_ = std::min<int32_t>(new_index, db_->entry_count() - 1);
+    }
+}
+
 } /* namespace ui */

firmware/application/ui/ui_freqlist.hpp

@@ -1,5 +1,7 @@
 /*
  * Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
+ * Copyright (C) 2023 gullradriel, Nilorea Studio Inc.
+ * Copyright (C) 2023 Kyle Reed
  *
  * This file is part of PortaPack.
  *
@@ -23,51 +25,48 @@
 #define __UI_FREQLIST_H__
 
 #include "ui.hpp"
-#include "ui_widget.hpp"
 #include "ui_painter.hpp"
 #include "ui_styles.hpp"
+#include "ui_widget.hpp"
 #include "event_m0.hpp"
-#include "message.hpp"
 #include "freqman.hpp"
+#include "freqman_db.hpp"
+#include "message.hpp"
 #include <cstdint>
 
 namespace ui {
 
 class FreqManUIList : public Widget {
    public:
-    std::function<void(FreqManUIList&)> on_select{};
-    std::function<void(FreqManUIList&)> on_touch_release{};  // Executed when releasing touch, after on_select.
-    std::function<void(FreqManUIList&)> on_touch_press{};    // Executed when touching, before on_select.
-    std::function<bool(FreqManUIList&, KeyEvent)> on_dir{};
-    std::function<void(FreqManUIList&)> on_highlight{};
+    std::function<void(size_t)> on_select{};
+    std::function<void()> on_leave{};  // Called when Right is pressed.
 
-    FreqManUIList(Rect parent_rect, bool instant_exec);  // instant_exec: Execute on_select when you touching instead of releasing
-    FreqManUIList(
-        Rect parent_rect)
-        : FreqManUIList{parent_rect, false} {
-    }
-    FreqManUIList()
-        : FreqManUIList{{}, {}} {
-    }
+    FreqManUIList(Rect parent_rect);
+    FreqManUIList(const FreqManUIList& other) = delete;
+    FreqManUIList& operator=(const FreqManUIList& other) = delete;
 
     void paint(Painter& painter) override;
     void on_focus() override;
+    void on_blur() override;
     bool on_key(const KeyEvent key) override;
-    bool on_touch(const TouchEvent event) override;
     bool on_encoder(EncoderEvent delta) override;
+    void set_parent_rect(Rect new_parent_rect) override;
 
-    void set_highlighted_index(int index);  // internal set highlighted_index in list handler
-    uint8_t get_index();                    // return highlighed + index
-    uint8_t set_index(uint8_t index);       // try to set current_index + highlighed from index, return capped index
-    void set_db(freqman_db& db);
+    void set_index(size_t index);
+    size_t get_index() const;
+    void set_db(FreqmanDB& db);
 
    private:
+    void adjust_selected_index(int index);
+
     static constexpr int8_t char_height = 16;
-    bool instant_exec_{false};
-    freqman_db freqlist_db{};
-    int current_index{0};
-    int highlighted_index{0};
-    int freqlist_nb_lines{0};
+    static constexpr int8_t char_width = 8;
+    static constexpr int8_t line_max_length = 29;
+    size_t visible_lines_{0};
+
+    FreqmanDB* db_{nullptr};
+    size_t start_index_{0};
+    size_t selected_index_{0};
 };
 
 }  // namespace ui

firmware/application/ui/ui_geomap.cpp

@@ -31,6 +31,7 @@ using namespace portapack;
 
 #include "string_format.hpp"
 #include "complex.hpp"
+#include "ui_styles.hpp"
 
 namespace ui {
 
@@ -80,8 +81,8 @@ GeoPos::GeoPos(
 }
 
 void GeoPos::set_read_only(bool v) {
-    for (auto child : children_)
-        child->set_focusable(!v);
+    // only setting altitude to read-only (allow manual panning via lat/lon fields)
+    field_altitude.set_focusable(!v);
 }
 
 // Stupid hack to avoid an event loop
@@ -90,7 +91,15 @@ void GeoPos::set_report_change(bool v) {
 }
 
 void GeoPos::focus() {
-    field_altitude.focus();
+    if (field_altitude.focusable())
+        field_altitude.focus();
+    else
+        field_lat_degrees.focus();
+}
+
+void GeoPos::hide_altitude() {
+    // Color altitude grey to indicate it's not updated in manual panning mode
+    field_altitude.set_style(&Styles::grey);
 }
 
 void GeoPos::set_altitude(int32_t altitude) {
@@ -132,11 +141,74 @@ int32_t GeoPos::altitude() {
 GeoMap::GeoMap(
     Rect parent_rect)
     : Widget{parent_rect}, markerListLen(0) {
-    // set_focusable(true);
+}
+
+bool GeoMap::on_encoder(const EncoderEvent delta) {
+    if ((delta > 0) && (map_zoom < 5)) {
+        map_zoom++;
+
+        // Ensure that MOD(240,map_zoom)==0 for the map_zoom_line() function
+        if (240 % map_zoom != 0) {
+            map_zoom--;
+        }
+    } else if ((delta < 0) && (map_zoom > 1)) {
+        map_zoom--;
+    } else {
+        return false;
+    }
+
+    // Trigger map redraw
+    markerListUpdated = true;
+    set_dirty();
+    return true;
+}
+
+void GeoMap::map_zoom_line(ui::Color* buffer) {
+    if (map_zoom <= 1) {
+        return;
+    }
+
+    // As long as MOD(width,map_zoom)==0 then we don't need to check buffer overflow case when stretching last pixel;
+    // For 240 width, than means no check is needed for map_zoom values up to 6
+    for (int i = (240 / map_zoom) - 1; i >= 0; i--) {
+        for (int j = 0; j < map_zoom; j++) {
+            buffer[(i * map_zoom) + j] = buffer[i];
+        }
+    }
+}
+
+void GeoMap::draw_markers(Painter& painter) {
+    const auto r = screen_rect();
+
+    for (int i = 0; i < markerListLen; ++i) {
+        GeoMarker& item = markerList[i];
+        double lat_rad = sin(item.lat * pi / 180);
+        int x = (map_width * (item.lon + 180) / 360) - x_pos;
+        int y = (map_height - ((map_world_lon / 2 * log((1 + lat_rad) / (1 - lat_rad))) - map_offset)) - y_pos;  // Offset added for the GUI
+
+        if (map_zoom != 1) {
+            x = ((x - (r.width() / 2)) * map_zoom) + (r.width() / 2);
+            y = ((y - (r.height() / 2)) * map_zoom) + (r.height() / 2);
+        }
+
+        if ((x >= 0) && (x < r.width()) &&
+            (y > 10) && (y < r.height()))  // Dont draw within symbol size of top
+        {
+            ui::Point itemPoint(x, y + r.top());
+            if (y >= 32) {  // Dont draw text if it would overlap top
+                // Text and symbol
+                draw_marker(painter, itemPoint, item.angle, item.tag, Color::blue(), Color::blue(), Color::magenta());
+            } else {
+                // Only symbol
+                draw_bearing(itemPoint, item.angle, 10, Color::blue());
+            }
+        }
+    }
 }
 
 void GeoMap::paint(Painter& painter) {
-    uint16_t line;
+    uint16_t line, j;
+    uint32_t zoom_seek_x, zoom_seek_y;
     std::array<ui::Color, 240> map_line_buffer;
     const auto r = screen_rect();
 
@@ -144,39 +216,41 @@ void GeoMap::paint(Painter& painter) {
     // or the markers list was updated
     int x_diff = abs(x_pos - prev_x_pos);
     int y_diff = abs(y_pos - prev_y_pos);
-    if (markerListUpdated || (x_diff >= 3) || (y_diff >= 3)) {
-        for (line = 0; line < r.height(); line++) {
-            map_file.seek(4 + ((x_pos + (map_width * (y_pos + line))) << 1));
-            map_file.read(map_line_buffer.data(), r.width() << 1);
-            display.draw_pixels({0, r.top() + line, r.width(), 1}, map_line_buffer);
+    if (markerListUpdated || (x_diff >= map_zoom * 3) || (y_diff >= map_zoom * 3)) {
+        if (map_zoom == 1) {
+            zoom_seek_x = zoom_seek_y = 0;
+        } else {
+            zoom_seek_x = (r.width() - (r.width() / map_zoom)) / 2;
+            zoom_seek_y = (r.height() - (r.height() / map_zoom)) / 2;
+        }
+
+        for (line = 0; line < (r.height() / map_zoom); line++) {
+            map_file.seek(4 + ((x_pos + zoom_seek_x + (map_width * (y_pos + line + zoom_seek_y))) << 1));
+            map_file.read(map_line_buffer.data(), (r.width() / map_zoom) << 1);
+            map_zoom_line(map_line_buffer.data());
+            for (j = 0; j < map_zoom; j++) {
+                display.draw_pixels({0, r.top() + (line * map_zoom) + j, r.width(), 1}, map_line_buffer);
+            }
         }
         prev_x_pos = x_pos;
         prev_y_pos = y_pos;
 
+        // Draw crosshairs in center in manual panning mode
+        if (manual_panning_) {
+            display.fill_rectangle({r.center() - Point(16, 1), {32, 2}}, Color::red());
+            display.fill_rectangle({r.center() - Point(1, 16), {2, 32}}, Color::red());
+        }
+
         // Draw the other markers
-        for (int i = 0; i < markerListLen; ++i) {
-            GeoMarker& item = markerList[i];
-            double lat_rad = sin(item.lat * pi / 180);
-            int x = (map_width * (item.lon + 180) / 360) - x_pos;
-            int y = (map_height - ((map_world_lon / 2 * log((1 + lat_rad) / (1 - lat_rad))) - map_offset)) - y_pos;  // Offset added for the GUI
-            if ((x >= 0) && (x < r.width()) &&
-                (y > 10) && (y < r.height()))  // Dont draw within symbol size of top
-            {
-                ui::Point itemPoint(x, y + r.top());
-                if (y >= 32) {  // Dont draw text if it would overlap top
-                    // Text and symbol
-                    draw_marker(painter, itemPoint, item.angle, item.tag, Color::blue(), Color::blue(), Color::magenta());
-                } else {
-                    // Only symbol
-                    draw_bearing(itemPoint, item.angle, 10, Color::blue());
-                }
-            }
-            markerListUpdated = false;
-        }  // Draw the other markers
+        draw_markers(painter);
+        markerListUpdated = false;
+        set_clean();
     }
 
     // Draw the marker in the center
-    draw_marker(painter, r.center(), angle_, tag_, Color::red(), Color::white(), Color::black());
+    if (!manual_panning_) {
+        draw_marker(painter, r.center(), angle_, tag_, Color::red(), Color::white(), Color::black());
+    }
 }
 
 bool GeoMap::on_touch(const TouchEvent event) {
@@ -236,6 +310,14 @@ void GeoMap::set_mode(GeoMapMode mode) {
     mode_ = mode;
 }
 
+void GeoMap::set_manual_panning(bool v) {
+    manual_panning_ = v;
+}
+
+bool GeoMap::manual_panning() {
+    return manual_panning_;
+}
+
 void GeoMap::draw_bearing(const Point origin, const uint16_t angle, uint32_t size, const Color color) {
     Point arrow_a, arrow_b, arrow_c;
 
@@ -311,6 +393,11 @@ void GeoMapView::focus() {
 }
 
 void GeoMapView::update_position(float lat, float lon, uint16_t angle, int32_t altitude) {
+    if (geomap.manual_panning()) {
+        geomap.set_dirty();
+        return;
+    }
+
     lat_ = lat;
     lon_ = lon;
     altitude_ = altitude;
@@ -342,6 +429,8 @@ void GeoMapView::setup() {
         altitude_ = altitude;
         lat_ = lat;
         lon_ = lon;
+        geopos.hide_altitude();
+        geomap.set_manual_panning(true);
         geomap.move(lon_, lat_);
         geomap.set_dirty();
     };
@@ -396,6 +485,7 @@ GeoMapView::GeoMapView(
     geomap.set_tag(tag);
     geomap.set_angle(angle);
     geomap.move(lon_, lat_);
+    geomap.set_focusable(true);
 
     geopos.set_read_only(true);
 }
@@ -425,6 +515,7 @@ GeoMapView::GeoMapView(
 
     geomap.set_mode(mode_);
     geomap.move(lon_, lat_);
+    geomap.set_focusable(true);
 
     button_ok.on_select = [this, on_done, &nav](Button&) {
         if (on_done)

firmware/application/ui/ui_geomap.hpp

@@ -71,6 +71,7 @@ class GeoPos : public View {
     void set_lat(float lat);
     void set_lon(float lon);
     int32_t altitude();
+    void hide_altitude();
     float lat();
     float lon();
 
@@ -83,8 +84,8 @@ class GeoPos : public View {
 
     Labels labels_position{
         {{1 * 8, 0 * 16}, "Alt:", Color::light_grey()},
-        {{1 * 8, 1 * 16}, "Lat:    *  '  \"", Color::light_grey()},  // No ° symbol in 8x16 font
-        {{1 * 8, 2 * 16}, "Lon:    *  '  \"", Color::light_grey()},
+        {{1 * 8, 1 * 16}, "Lat:    \x90  '  \"", Color::light_grey()},  // 0x90 is degree ° symbol in our 8x16 font
+        {{1 * 8, 2 * 16}, "Lon:    \x90  '  \"", Color::light_grey()},
     };
 
     NumberField field_altitude{
@@ -157,9 +158,12 @@ class GeoMap : public Widget {
     void paint(Painter& painter) override;
 
     bool on_touch(const TouchEvent event) override;
+    bool on_encoder(const EncoderEvent delta) override;
 
     bool init();
     void set_mode(GeoMapMode mode);
+    void set_manual_panning(bool v);
+    bool manual_panning();
     void move(const float lon, const float lat);
     void set_tag(std::string new_tag) {
         tag_ = new_tag;
@@ -177,11 +181,15 @@ class GeoMap : public Widget {
    private:
     void draw_bearing(const Point origin, const uint16_t angle, uint32_t size, const Color color);
     void draw_marker(Painter& painter, const ui::Point itemPoint, const uint16_t itemAngle, const std::string itemTag, const Color color = Color::red(), const Color fontColor = Color::white(), const Color backColor = Color::black());
+    void draw_markers(Painter& painter);
+    void map_zoom_line(ui::Color* buffer);
 
+    bool manual_panning_{false};
     GeoMapMode mode_{};
     File map_file{};
     uint16_t map_width{}, map_height{};
     int32_t map_center_x{}, map_center_y{};
+    int16_t map_zoom{1};
     float lon_ratio{}, lat_ratio{};
     double map_bottom{};
     double map_world_lon{};

firmware/application/ui/ui_receiver.cpp

@@ -96,7 +96,7 @@ bool FrequencyField::on_encoder(const EncoderEvent delta) {
         // To get these magic numbers, I graphed the function until the
         // curve shape seemed about right then tested on device.
         delta_ms = std::min(145ull, delta_ms) + 5;  // Prevent DIV/0
-        int64_t scale = 200'000'000 / (0.001'55 * pow(delta_ms, 5.45)) + 8;
+        int64_t scale = 200'000'000 / (0.001'55 * std::pow(delta_ms, 5.45)) + 8;
         set_value(value() + (delta * scale));
     } else {
         set_value(value() + (delta * step));
@@ -280,7 +280,7 @@ FrequencyOptionsView::FrequencyOptionsView(
 }
 
 void FrequencyOptionsView::set_step(rf::Frequency f) {
-    field_step.set_by_value(f);
+    field_step.set_by_nearest_value(f);
 }
 
 void FrequencyOptionsView::set_reference_ppm_correction(int32_t v) {