Support for Rotary Encoder Dial sensitivity levels, issue #965 (#1057)

* Support for 3 levels of rotary encoder sensitivity #965

Backend support; UI will still need to call set function to configure.

* Support for 3 levels of rotary encoder sensitivity #965

Backend support only.  UI will still need to be changed to call the set_sensitivity() function to configure.

* Removed trailing space

* Deleted blank lines to see if format checker will be happier

* Simpler support for multiple levels of encoder sensitivity, for issue #965

Removed the convoluted code :-) and instead just using a 2-dimensional array to choose which transition map to use.  For now I only have 2 (vs 3) levels enabled as well, to save code space and because high-sensitivity is very touchy.

* Simpler version of configurable encoder sensitivity, issue #965

* Formatting

* Formatting test for Clang

* Formatting test

* Formatting (removed helpful comment)

* Formatting test (remove commented-out code)

* Formatting & swapping medium/low so default mode=0

* Swapped medium/low so default mode=0

* Adding UI & PMEM support to make encoder dial sensitivity configurable, issue #965

* Adding UI & PMEM support to make encoder dial sensitivity configurable, issue #965

* Adding UI & PMEM support to make encoder dial sensitivity configurable, issue #965

* Adding UI & PMEM support to make encoder dial sensitivity configurable, issue #965

* Adding UI & PMEM support to make encoder dial sensitivity configurable, issue #965

* Adding UI & PMEM support to make encoder dial sensitivity configurable, issue #965

* Removed unneeded range check (trusting in pmem checksum)

firmware/application/apps/ui_settings.cpp

@@ -529,9 +529,9 @@ void SetPersistentMemoryView::focus() {
     button_return.focus();
 }
 
-//
+// ---------------------------------------------------------
-// Audio settings
+// Audio Settings
-//
+// ---------------------------------------------------------
 SetAudioView::SetAudioView(NavigationView& nav) {
     add_children({&labels,
                   &field_tone_mix,
@@ -554,6 +554,9 @@ void SetAudioView::focus() {
     button_save.focus();
 }
 
+// ---------------------------------------------------------
+// QR Code Settings
+// ------------------------------------------------------
 SetQRCodeView::SetQRCodeView(NavigationView& nav) {
     add_children({&checkbox_bigger_qr,
                   &button_save,
@@ -575,6 +578,31 @@ void SetQRCodeView::focus() {
     button_save.focus();
 }
 
+// ---------------------------------------------------------
+// Rotary Encoder Dial Settings
+// ---------------------------------------------------------
+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());
+
+    button_save.on_select = [&nav, this](Button&) {
+        persistent_memory::set_encoder_dial_sensitivity(field_encoder_dial_sensitivity.selected_index_value());
+        nav.pop();
+    };
+
+    button_cancel.on_select = [&nav, this](Button&) {
+        nav.pop();
+    };
+}
+
+void SetEncoderDialView::focus() {
+    button_save.focus();
+}
+
 // ---------------------------------------------------------
 // Settings main menu
 // ---------------------------------------------------------
@@ -593,6 +621,7 @@ SettingsMenuView::SettingsMenuView(NavigationView& nav) {
         {"FreqCorrection", ui::Color::dark_cyan(), &bitmap_icon_options_radio, [&nav]() { nav.push<SetFrequencyCorrectionView>(); }},
         {"QR Code", ui::Color::dark_cyan(), &bitmap_icon_qr_code, [&nav]() { nav.push<SetQRCodeView>(); }},
         {"P.Memory Mgmt", ui::Color::dark_cyan(), &bitmap_icon_memory, [&nav]() { nav.push<SetPersistentMemoryView>(); }},
+        {"Encoder Dial", ui::Color::dark_cyan(), &bitmap_icon_setup, [&nav]() { nav.push<SetEncoderDialView>(); }},
     });
     set_max_rows(2);  // allow wider buttons
 }

firmware/application/apps/ui_settings.hpp

@@ -432,6 +432,38 @@ class SetQRCodeView : public View {
     };
 };
 
+using portapack::persistent_memory::encoder_dial_sensitivity;
+
+class SetEncoderDialView : public View {
+   public:
+    SetEncoderDialView(NavigationView& nav);
+
+    void focus() override;
+
+    std::string title() const override { return "Encoder Dial"; };
+
+   private:
+    Labels labels{
+        {{2 * 8, 3 * 16}, "Dial sensitivity:", Color::light_grey()},
+    };
+
+    OptionsField field_encoder_dial_sensitivity{
+        {20 * 8, 3 * 16},
+        6,
+        {{"LOW", encoder_dial_sensitivity::DIAL_SENSITIVITY_LOW},
+         {"NORMAL", encoder_dial_sensitivity::DIAL_SENSITIVITY_MEDIUM},
+         {"HIGH", encoder_dial_sensitivity::DIAL_SENSITIVITY_HIGH}}};
+
+    Button button_save{
+        {2 * 8, 16 * 16, 12 * 8, 32},
+        "Save"};
+
+    Button button_cancel{
+        {16 * 8, 16 * 16, 12 * 8, 32},
+        "Cancel",
+    };
+};
+
 class SetPersistentMemoryView : public View {
    public:
     SetPersistentMemoryView(NavigationView& nav);

firmware/application/hw/encoder.cpp

@@ -23,23 +23,75 @@
 
 #include "utility.hpp"
 
-static const int8_t transition_map[] = {
+#include "portapack.hpp"
+#include "portapack_persistent_memory.hpp"
+
+// Now supporting multiple levels of rotary encoder dial sensitivity
+//
+// Portapack H2 normally has a 30-step encoder, meaning one step (pulse) every
+// 12 degrees of rotation.
+//
+// For each encoder "pulse" there are 4 state transitions, and we can choose
+// between looking at all of them (high sensitivity), half of them (medium/default),
+// or one quarter of them (low sensitivity).
+static const int8_t transition_map[][16] = {
+    // Normal (Medium) Sensitivity -- default
+    {
         0,   // 0000: noop
-    0,   // 0001: start
+        0,   // 0001: ccw start
-    0,   // 0010: start
+        0,   // 0010: cw start
         0,   // 0011: rate
-    1,   // 0100: end
+        1,   // 0100: cw end
         0,   // 0101: noop
         0,   // 0110: rate
-    -1,  // 0111: end
+        -1,  // 0111: ccw end
-    -1,  // 1000: end
+        -1,  // 1000: ccw end
         0,   // 1001: rate
         0,   // 1010: noop
-    1,   // 1011: end
+        1,   // 1011: cw end
         0,   // 1100: rate
-    0,   // 1101: start
+        0,   // 1101: cw start
-    0,   // 1110: start
+        0,   // 1110: ccw start
         0,   // 1111: noop
+    },
+    // Low Sensitivity
+    {
+        0,   // 0000: noop
+        0,   // 0001: ccw start
+        0,   // 0010: cw start
+        0,   // 0011: rate
+        1,   // 0100: cw end
+        0,   // 0101: noop
+        0,   // 0110: rate
+        0,   // 0111: ccw end
+        -1,  // 1000: ccw end
+        0,   // 1001: rate
+        0,   // 1010: noop
+        0,   // 1011: cw end
+        0,   // 1100: rate
+        0,   // 1101: cw start
+        0,   // 1110: ccw start
+        0,   // 1111: noop
+    },
+    // High Sensitivity
+    {
+        0,   // 0000: noop
+        -1,  // 0001: ccw start
+        1,   // 0010: cw start
+        0,   // 0011: rate
+        1,   // 0100: cw end
+        0,   // 0101: noop
+        0,   // 0110: rate
+        -1,  // 0111: ccw end
+        -1,  // 1000: ccw end
+        0,   // 1001: rate
+        0,   // 1010: noop
+        1,   // 1011: cw end
+        0,   // 1100: rate
+        1,   // 1101: cw start
+        -1,  // 1110: ccw start
+        0,   // 1111: noop
+    },
 };
 
 int_fast8_t Encoder::update(
@@ -50,5 +102,6 @@ int_fast8_t Encoder::update(
     state <<= 1;
     state |= phase_1;
 
-    return transition_map[state & 0xf];
+    // dial sensitivity setting is stored in pmem
+    return transition_map[portapack::persistent_memory::config_encoder_dial_sensitivity()][state & 0xf];
 }

firmware/common/portapack_persistent_memory.cpp

@@ -302,6 +302,9 @@ struct data_t {
     uint32_t frequency_tx_correction;
     bool updown_frequency_tx_correction;
 
+    // Rotary encoder dial sensitivity (encoder.cpp/hpp)
+    uint8_t encoder_dial_sensitivity;
+
     constexpr data_t()
         : structure_version(data_structure_version_enum::VERSION_CURRENT),
           tuned_frequency(tuned_frequency_reset_value),
@@ -337,7 +340,8 @@ struct data_t {
           frequency_rx_correction(0),
           updown_frequency_rx_correction(0),
           frequency_tx_correction(0),
-          updown_frequency_tx_correction(0) {
+          updown_frequency_tx_correction(0),
+          encoder_dial_sensitivity(0) {
     }
 };
 
@@ -808,6 +812,14 @@ void set_config_freq_rx_correction(uint32_t v) {
     data->frequency_rx_correction = v;
 }
 
+// rotary encoder dial settings
+uint8_t config_encoder_dial_sensitivity() {
+    return data->encoder_dial_sensitivity;
+}
+void set_encoder_dial_sensitivity(uint8_t v) {
+    data->encoder_dial_sensitivity = v;
+}
+
 // sd persisting settings
 int save_persistent_settings_to_file(std::string filename) {
     delete_file(filename);

firmware/common/portapack_persistent_memory.hpp

@@ -99,6 +99,13 @@ struct backlight_config_t {
     bool _timeout_enabled;
 };
 
+enum encoder_dial_sensitivity {
+    DIAL_SENSITIVITY_MEDIUM = 0,
+    DIAL_SENSITIVITY_LOW = 1,
+    DIAL_SENSITIVITY_HIGH = 2,
+    NUM_DIAL_SENSITIVITY
+};
+
 namespace cache {
 
 /* Set values in cache to sensible defaults. */
@@ -199,6 +206,8 @@ void set_config_login(bool v);
 void set_config_speaker(bool v);
 void set_config_backlight_timer(const backlight_config_t& new_value);
 void set_disable_touchscreen(bool v);
+uint8_t config_encoder_dial_sensitivity();
+void set_encoder_dial_sensitivity(uint8_t v);
 
 // uint8_t ui_config_textentry();
 // void set_config_textentry(uint8_t new_value);