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/source/module.cpp

@@ -1,55 +1,20 @@
-#include <tactility/module.h>
-#include <tactility/delay.h>
 #include <tactility/error.h>
 #include <tactility/log.h>
+#include <tactility/module.h>
 
-#include <lvgl/lvgl.h>
-
-#include <tactility/system_event.h>
-
-#include <Tactility/LogMessages.h>
-#include <Tactility/kernel/Kernel.h>
-#include <Tactility/settings/TrackballSettings.h>
-
-#include <lilygo/drivers/trackball.h>
 #include <lilygo/drivers/tdeck_power_on.h>
 
 constexpr auto* TAG = "tdeck";
 
 extern "C" {
 
-static void on_boot_completed(struct SystemEvent* /*event*/, void* /*context*/) {
-    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();
-}
-
-void subscribe_events() {
-    // The kernel trackball device is already started by kernel_init(); this just registers it as an
-    // LVGL input device and applies persisted settings, both of which require LVGL to be up first.
-    system_event_subscribe(KERNEL_EVENT_BOOT_COMPLETED, on_boot_completed, nullptr);
-}
-
 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);
-
-    subscribe_events();
-
     return ERROR_NONE;
 }