Trackball rewrite (#600)

- Implement generic trackball settings
- Refactor T-Deck trackball driver into generic driver at `Drivers/gpio-trackball-module`
- Automatically bind/unbind trackball devices with LVGL
- Automatically load settings for trackball devices on boot

Devices/lilygo-tdeck-plus/CMakeLists.txt

@@ -2,5 +2,5 @@ file(GLOB_RECURSE SOURCE_FILES source/*.c*)
 
 idf_component_register(
     SRCS ${SOURCE_FILES}
-    REQUIRES Tactility driver lilygo-module
+    REQUIRES TactilityKernel lilygo-module
 )

Devices/lilygo-tdeck-plus/devicetree.yaml

@@ -4,6 +4,7 @@ dependencies:
   - Drivers/st7789-module
   - Drivers/gt911-module
   - Drivers/lilygo-module
+  - Drivers/gpio-trackball-module
   - Drivers/es7210-module
   - Drivers/dummy-i2s-amp-module
   - Drivers/audio-stream-module

Devices/lilygo-tdeck-plus/lilygo,tdeck-plus.dts

@@ -19,12 +19,12 @@
 #include <bindings/st7789.h>
 #include <bindings/es7210.h>
 #include <bindings/dummy_i2s_amp.h>
+#include <bindings/gpio_trackball.h>
 
 #include <gps_generic/bindings.h>
 
 #include <lilygo/bindings/tdeck_keyboard.h>
 #include <lilygo/bindings/tdeck_keyboard_backlight.h>
-#include <lilygo/bindings/tdeck_trackball.h>
 
 // Reference: https://wiki.lilygo.cc/products/t-deck-series/t-deck-plus/
 / {
@@ -61,7 +61,7 @@
 	};
 
 	trackball {
-		compatible = "lilygo,tdeck-trackball";
+		compatible = "tactility,gpio-trackball";
 		pin-right = <&gpio0 2 GPIO_FLAG_NONE>;
 		pin-up = <&gpio0 3 GPIO_FLAG_NONE>;
 		pin-left = <&gpio0 1 GPIO_FLAG_NONE>;

Devices/lilygo-tdeck-plus/source/module.cpp

@@ -1,57 +1,25 @@
-#include <tactility/delay.h>
 #include <tactility/error.h>
 #include <tactility/log.h>
 #include <tactility/module.h>
-#include <tactility/system_event.h>
 
-#include <Tactility/LogMessages.h>
-#include <Tactility/settings/TrackballSettings.h>
-
-#include <lvgl/lvgl.h>
-
-#include <lilygo/drivers/trackball.h>
 #include <lilygo/drivers/tdeck_power_on.h>
 
 constexpr auto* TAG = "tdeck-plus";
 
 extern "C" {
 
-void init_trackball() {
-    auto tbSettings = tt::settings::trackball::loadOrGetDefault();
-    lvgl_lock();
-    if (trackball::init() != nullptr) {
-        trackball::setMode(tbSettings.trackballMode == tt::settings::trackball::TrackballMode::Pointer
-            ? trackball::Mode::Pointer
-            : trackball::Mode::Encoder);
-        trackball::setEncoderSensitivity(tbSettings.encoderSensitivity);
-        trackball::setPointerSensitivity(tbSettings.pointerSensitivity);
-        trackball::setEnabled(tbSettings.trackballEnabled);
-    }
-    lvgl_unlock();
-}
-
-static void on_boot_completed(struct SystemEvent* /*event*/, void* /*context*/) {
-    init_trackball();
-}
-
 static error_t start() {
-    LOG_I(TAG, LOG_MESSAGE_POWER_ON_START);
+    LOG_I(TAG, "Power on start");
 
     if (!tdeck_power_on()) {
-        LOG_E(TAG, LOG_MESSAGE_POWER_ON_FAILED);
+        LOG_E(TAG, "Power on failed");
         return ERROR_RESOURCE;
     }
 
-    // Avoids crash when no SD card is inserted. It's unknown why, but likely is related to power draw.
-    delay_millis(100);
-
-    system_event_subscribe(KERNEL_EVENT_BOOT_COMPLETED, on_boot_completed, nullptr);
-
     return ERROR_NONE;
 }
 
 static error_t stop() {
-    system_event_unsubscribe(KERNEL_EVENT_BOOT_COMPLETED, on_boot_completed);
     return ERROR_NONE;
 }