Persist audio (#1110)

* Add credits
* Persist audio, add volume to apps
* Remove comment
* Hack around apparent alignment problem

firmware/application/apps/ui_about_simple.cpp

@@ -34,6 +34,7 @@ void AboutView::update() {
                 console.writeln("notpike,jLynx,zigad");
                 console.writeln("MichalLeonBorsuk,jimilinuxguy");
                 console.writeln("kallanreed,bernd-herzog");
+                console.writeln("NotherNgineer,zxkmm,u-foka");
                 console.writeln("");
                 break;
 

firmware/application/apps/ui_afsk_rx.cpp

@@ -55,6 +55,7 @@ AFSKRxView::AFSKRxView(NavigationView& nav) {
                   &field_rf_amp,
                   &field_lna,
                   &field_vga,
+                  &field_volume,
                   &field_frequency,
                   &check_log,
                   &text_debug,

firmware/application/apps/ui_afsk_rx.hpp

@@ -79,6 +79,9 @@ class AFSKRxView : public View {
         {21 * 8, 5, 6 * 8, 4},
     };
 
+    AudioVolumeField field_volume{
+        {28 * 8, 0 * 16}};
+
     FrequencyField field_frequency{
         {0 * 8, 0 * 16},
     };

firmware/application/apps/ui_aprs_rx.cpp

@@ -86,6 +86,7 @@ APRSRxView::APRSRxView(NavigationView& nav, Rect parent_rect)
                   &field_rf_amp,
                   &field_lna,
                   &field_vga,
+                  &field_volume,
                   &options_region,
                   &field_frequency,
                   &record_view,

firmware/application/apps/ui_aprs_rx.hpp

@@ -207,6 +207,9 @@ class APRSRxView : public View {
         {21 * 8, 5, 6 * 8, 4},
     };
 
+    AudioVolumeField field_volume{
+        {28 * 8, 0 * 16}};
+
     OptionsField options_region{
         {0 * 8, 0 * 8},
         3,

firmware/application/apps/ui_level.cpp

@@ -132,7 +132,7 @@ LevelView::LevelView(NavigationView& nav)
             audio::output::stop();
         } else if (v == 1) {
             audio::output::start();
-            receiver_model.set_headphone_volume(receiver_model.headphone_volume());  // TODO: Needed?
+            receiver_model.set_headphone_volume(receiver_model.headphone_volume());  // WM8731 hack.
         } else {
         }
     };

firmware/application/apps/ui_playlist.cpp

@@ -146,7 +146,7 @@ void PlaylistView::toggle() {
         track_number = 0;
         playlist_db.clear();
         playlist_masterdb.clear();
-    } else {  // Thanks kallanreed for providing this logic!
+    } else {
         total_tracks = 0;
         track_number = 0;
         playlist_db.clear();

firmware/application/apps/ui_recon.cpp

@@ -182,7 +182,6 @@ bool ReconView::recon_load_config_from_sd() {
         squelch = -14;
         recon_match_mode = RECON_MATCH_CONTINUOUS;
         wait = RECON_DEF_WAIT_DURATION;
-        volume = 40;
         return false;
     }
 
@@ -221,11 +220,6 @@ bool ReconView::recon_load_config_from_sd() {
     else
         wait = RECON_DEF_WAIT_DURATION;
 
-    if (it > 7)
-        volume = strtoll(params[7].c_str(), nullptr, 10);
-    else
-        volume = 40;
-
     return true;
 }
 
@@ -244,13 +238,12 @@ bool ReconView::recon_save_config_to_sd() {
     settings_file.write_line(to_string_dec_int(squelch));
     settings_file.write_line(to_string_dec_uint(recon_match_mode));
     settings_file.write_line(to_string_dec_int(wait));
-    settings_file.write_line(to_string_dec_int(volume));
     return true;
 }
 
 void ReconView::audio_output_start() {
     audio::output::start();
-    receiver_model.set_headphone_volume(receiver_model.headphone_volume());
+    receiver_model.set_headphone_volume(receiver_model.headphone_volume());  // WM8731 hack.
 }
 
 void ReconView::recon_redraw() {
@@ -438,7 +431,6 @@ 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();
-    field_volume.set_value(volume);
     if (sd_card_mounted) {
         // load auto common app settings
         auto rc = settings.load("recon", &app_settings);

firmware/application/apps/ui_recon.hpp

@@ -149,7 +149,6 @@ class ReconView : public View {
     bool scanner_mode{false};
     bool manual_mode{false};
     bool sd_card_mounted = false;
-    int32_t volume = 40;
     int32_t stepper = 0;
     int32_t index_stepper = 0;
     int64_t freq = 0;

firmware/application/apps/ui_recon_settings.hpp

@@ -60,7 +60,7 @@
 //#define SCREEN_H 320
 
 // recon settings nb params
-#define RECON_SETTINGS_NB_PARAMS 8
+#define RECON_SETTINGS_NB_PARAMS 7
 
 namespace ui {
 

firmware/application/receiver_model.cpp

@@ -119,15 +119,6 @@ void ReceiverModel::set_vga(int32_t v_db) {
     update_vga();
 }
 
-/*int32_t ReceiverModel::tx_gain() const {
-    return tx_gain_db_;
-}
-
-void ReceiverModel::set_tx_gain(int32_t v_db) {
-    tx_gain_db_ = v_db;
-    update_tx_gain();
-}*/
-
 uint32_t ReceiverModel::sampling_rate() const {
     return sampling_rate_;
 }
@@ -147,20 +138,20 @@ void ReceiverModel::set_modulation(const Mode v) {
 }
 
 volume_t ReceiverModel::headphone_volume() const {
-    return headphone_volume_;
+    return persistent_memory::headphone_volume();
 }
 
 void ReceiverModel::set_headphone_volume(volume_t v) {
-    headphone_volume_ = v;
+    persistent_memory::set_headphone_volume(v);
     update_headphone_volume();
 }
 
 int32_t ReceiverModel::normalized_headphone_volume() const {
-    return (headphone_volume_ - audio::headphone::volume_range().max).decibel() + 99;
+    return (headphone_volume() - audio::headphone::volume_range().max).decibel() + 99;
 }
 
 void ReceiverModel::set_normalized_headphone_volume(int32_t v) {
-    // TODO: Linear map instead to ensure 0 is minimal value.
+    // TODO: Linear map instead to ensure 0 is minimal value or fix volume_range_t::normalize.
     v = clip<int32_t>(v, 0, 99);
     auto new_volume = volume_t::decibel(v - 99) + audio::headphone::volume_range().max;
     set_headphone_volume(new_volume);
@@ -183,13 +174,11 @@ void ReceiverModel::enable() {
     update_rf_amp();
     update_lna();
     update_vga();
-    // update_tx_gain();
     update_baseband_bandwidth();
     update_sampling_rate();
     update_modulation();
 
-    // TODO: would challenge if this should belong to the
-    // receiver_model namespace:
+    // TODO: maybe not the perfect place for this, but it's reasonable.
     update_headphone_volume();
 
     led_rx.on();
@@ -241,10 +230,6 @@ void ReceiverModel::update_vga() {
     radio::set_vga_gain(vga_gain_db_);
 }
 
-/*void ReceiverModel::update_tx_gain() {
-    radio::set_tx_gain(tx_gain_db_);
-}*/
-
 void ReceiverModel::set_am_configuration(const size_t n) {
     if (n < am_configs.size()) {
         am_config_index = n;
@@ -277,7 +262,7 @@ void ReceiverModel::update_sampling_rate() {
 }
 
 void ReceiverModel::update_headphone_volume() {
-    audio::headphone::set_volume(headphone_volume_);
+    audio::headphone::set_volume(headphone_volume());
 }
 
 void ReceiverModel::update_modulation() {

firmware/application/receiver_model.hpp

@@ -61,10 +61,6 @@ class ReceiverModel {
     int32_t vga() const;
     void set_vga(int32_t v_db);
 
-    // TODO: Why does receiver need tx_gain?
-    // int32_t tx_gain() const;
-    // void set_tx_gain(int32_t v_db);
-
     uint32_t sampling_rate() const;
     void set_sampling_rate(uint32_t v);
 
@@ -108,13 +104,11 @@ class ReceiverModel {
     int32_t lna_gain_db_{32};
     uint32_t baseband_bandwidth_{max283x::filter::bandwidth_minimum};
     int32_t vga_gain_db_{32};
-    // int32_t tx_gain_db_{47};
     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;
-    volume_t headphone_volume_{-43.0_dB};
     uint8_t squelch_level_{80};
 
     int32_t tuning_offset();

firmware/common/portapack_persistent_memory.cpp

@@ -22,6 +22,7 @@
 
 #include "portapack_persistent_memory.hpp"
 
+#include "audio.hpp"
 #include "portapack.hpp"
 #include "hal.h"
 
@@ -75,7 +76,7 @@ constexpr clkout_freq_range_t clkout_freq_range{10, 60000};
 constexpr uint32_t clkout_freq_reset_value{10000};
 
 enum data_structure_version_enum : uint32_t {
-    VERSION_CURRENT = 0x10000002,
+    VERSION_CURRENT = 0x10000003,
 };
 
 static const uint32_t TOUCH_CALIBRATION_MAGIC = 0x074af82f;
@@ -305,6 +306,9 @@ struct data_t {
     // Rotary encoder dial sensitivity (encoder.cpp/hpp)
     uint8_t encoder_dial_sensitivity;
 
+    // Headphone volume in centibels.
+    int32_t headphone_volume_cb;
+
     constexpr data_t()
         : structure_version(data_structure_version_enum::VERSION_CURRENT),
           tuned_frequency(tuned_frequency_reset_value),
@@ -341,7 +345,8 @@ struct data_t {
           updown_frequency_rx_correction(0),
           frequency_tx_correction(0),
           updown_frequency_tx_correction(0),
-          encoder_dial_sensitivity(0) {
+          encoder_dial_sensitivity(0),
+          headphone_volume_cb(-600) {
     }
 };
 
@@ -423,6 +428,9 @@ namespace cache {
 
 void defaults() {
     cached_backup_ram = backup_ram_t();
+    *data = data_t();  // This is a workaround for apparently alignment issue
+                       // that is causing backup_ram_t's block copy to be
+                       // misaligned. This force sets values through the struct.
 
     // defaults values for recon app
     set_recon_autosave_freqs(false);
@@ -469,6 +477,17 @@ void set_tuned_frequency(const rf::Frequency new_value) {
     data->tuned_frequency = rf::tuning_range.clip(new_value);
 }
 
+volume_t headphone_volume() {
+    auto volume = volume_t::centibel(data->headphone_volume_cb);
+    volume = audio::headphone::volume_range().limit(volume);
+    return volume;
+}
+
+void set_headphone_volume(volume_t new_value) {
+    new_value = audio::headphone::volume_range().limit(new_value);
+    data->headphone_volume_cb = new_value.centibel();
+}
+
 ppb_t correction_ppb() {
     ppb_range.reset_if_outside(data->correction_ppb, ppb_reset_value);
     return data->correction_ppb;

firmware/common/portapack_persistent_memory.hpp

@@ -31,6 +31,7 @@
 #include "touch.hpp"
 #include "modems.hpp"
 #include "serializer.hpp"
+#include "volume.hpp"
 
 // persistant memory from/to sdcard flag file
 #define PMEM_FILEFLAG "/SETTINGS/PMEM_FILEFLAG"
@@ -132,6 +133,9 @@ using ppb_t = int32_t;
 rf::Frequency tuned_frequency();
 void set_tuned_frequency(const rf::Frequency new_value);
 
+volume_t headphone_volume();
+void set_headphone_volume(volume_t new_value);
+
 ppb_t correction_ppb();
 void set_correction_ppb(const ppb_t new_value);
 

firmware/common/volume.hpp

@@ -23,6 +23,7 @@
 #define __VOLUME_H__
 
 #include <cstdint>
+#include "utility.hpp"
 
 class volume_t {
    public:
@@ -89,13 +90,7 @@ struct volume_range_t {
     volume_t max;
 
     volume_t limit(const volume_t value) const {
-        if (value < min) {
-            return min;
-        }
-        if (value > max) {
-            return max;
-        }
-        return value;
+        return clip(value, min, max);
     }
 
     volume_t normalize(const volume_t value) const {