Touch and display driver subsystems reworked (and more) (#302)

- Refactored `TouchDevice`: it can now start/stop LVGL separately, and it has an optional `TouchDriver` interface
- Refactored `DisplayDevice`: it can now start/stop LVGL separately, and it has an optional `DisplayDriver` interface
- Updated all boards and drivers for above changes
- LVGL can now be stopped and (re)started on the fly
- Fixed issues with restarting Gui and Statusbar services
- Refactored `Gui` service to be class and renamed `Gui` to `GuiService`
- Fixed `Statusbar` service: forgot to deregister one of the icons
- Updated `esp_lcd_st7701` to v1.1.3
- `lv_textarea_create()` now automatically registers the hardware keyboard hooks (by wrapping the function)
- Fixed and updated `tactility.py`
- Cleanup of a lot of code
- `BootInitLvglBegin` and `BootInitLvglEnd` are replaced by `LvglStarted` and `LvglStopped`.
- Introduced `tt::service::State` which is accessible via `tt::service::getState()` (and internally via `ServiceInstance`)
- Started replacing `#define TAG` with `constexpr auto TAG = "..";`

Drivers/CST816S/Source/Cst816sTouch.cpp

@@ -1,25 +1,18 @@
 #include "Cst816Touch.h"
 
-#include <Tactility/Log.h>
-
-#include <driver/i2c.h>
-#include <esp_err.h>
-#include <esp_lcd_touch.h>
 #include <esp_lcd_touch_cst816s.h>
-#include <esp_lvgl_port.h>
 
-#define TAG "cst816s"
+bool Cst816sTouch::createIoHandle(esp_lcd_panel_io_handle_t& ioHandle) {
+    constexpr esp_lcd_panel_io_i2c_config_t touch_io_config = ESP_LCD_TOUCH_IO_I2C_CST816S_CONFIG();
+    return esp_lcd_new_panel_io_i2c((esp_lcd_i2c_bus_handle_t)configuration->port, &touch_io_config, &ioHandle) == ESP_OK;
+}
 
-bool Cst816sTouch::start(lv_display_t* display) {
-    TT_LOG_I(TAG, "Starting");
-    const esp_lcd_panel_io_i2c_config_t touch_io_config = ESP_LCD_TOUCH_IO_I2C_CST816S_CONFIG();
+bool Cst816sTouch::createTouchHandle(esp_lcd_panel_io_handle_t ioHandle, const esp_lcd_touch_config_t& touchConfiguration, esp_lcd_touch_handle_t& touchHandle) {
+    return esp_lcd_touch_new_i2c_cst816s(ioHandle, &touchConfiguration, &touchHandle) == ESP_OK;
+}
 
-    if (esp_lcd_new_panel_io_i2c((esp_lcd_i2c_bus_handle_t)configuration->port, &touch_io_config, &ioHandle) != ESP_OK) {
-        TT_LOG_E(TAG, "Touch I2C IO init failed");
-        return false;
-    }
-
-    esp_lcd_touch_config_t config = {
+esp_lcd_touch_config_t Cst816sTouch::createEspLcdTouchConfig() {
+    return {
         .x_max = configuration->xMax,
         .y_max = configuration->yMax,
         .rst_gpio_num = configuration->pinReset,
@@ -38,47 +31,4 @@ bool Cst816sTouch::start(lv_display_t* display) {
         .user_data = nullptr,
         .driver_data = nullptr
     };
-
-    if (esp_lcd_touch_new_i2c_cst816s(ioHandle, &config, &touchHandle) != ESP_OK) {
-        TT_LOG_E(TAG, "Driver init failed");
-        cleanup();
-        return false;
-    }
-
-    const lvgl_port_touch_cfg_t touch_cfg = {
-        .disp = display,
-        .handle = touchHandle,
-    };
-
-    deviceHandle = lvgl_port_add_touch(&touch_cfg);
-    if (deviceHandle == nullptr) {
-        TT_LOG_E(TAG, "Adding touch failed");
-        cleanup();
-        return false;
-    }
-
-    TT_LOG_I(TAG, "Finished");
-    return true;
-}
-
-bool Cst816sTouch::stop() {
-    cleanup();
-    return true;
-}
-
-void Cst816sTouch::cleanup() {
-    if (deviceHandle != nullptr) {
-        lv_indev_delete(deviceHandle);
-        deviceHandle = nullptr;
-    }
-
-    if (touchHandle != nullptr) {
-        esp_lcd_touch_del(touchHandle);
-        touchHandle = nullptr;
-    }
-
-    if (ioHandle != nullptr) {
-        esp_lcd_panel_io_del(ioHandle);
-        ioHandle = nullptr;
-    }
 }