cleanup and improvements

improved driver creation
fixed compile warnings in check.h
hello_world example is now working again with lvgl

components/nanobake/inc/nanobake.h

@@ -2,14 +2,17 @@
 
 #include "nb_hardware.h"
 #include "nb_app.h"
+#include "nb_config.h"
 
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-extern void nanobake_start(nb_config_t _Nonnull * config);
-
+// Forward declarations
 typedef void* FuriThreadId;
+typedef struct nb_lvgl nb_lvgl_t;
+
+extern void nanobake_start(nb_config_t _Nonnull * config);
 
 extern FuriThreadId nanobake_get_app_thread_id(size_t index);
 extern size_t nanobake_get_app_thread_count();

components/nanobake/inc/nb_config.h

@@ -18,7 +18,8 @@ struct nb_config {
     // Optional driver for touch input
     const create_touch_driver _Nullable touch_driver;
     // List of user applications
-    const nb_app_t* apps[];
+    const size_t apps_count;
+    const nb_app_t* const apps[];
 };
 
 #ifdef __cplusplus

components/nanobake/inc/nb_display.h

@@ -15,6 +15,8 @@ struct nb_display {
     uint16_t bits_per_pixel;
     esp_lcd_panel_io_handle_t _Nonnull io_handle;
     esp_lcd_panel_handle_t _Nonnull display_handle;
+    bool mirror_x;
+    bool mirror_y;
 };
 
 typedef struct nb_display_driver nb_display_driver_t;

components/nanobake/inc/nb_hardware.h

@@ -1,7 +1,7 @@
 #pragma once
 
-#include "nb_config.h"
-#include <lvgl.h>
+#include "nb_display.h"
+#include "nb_touch.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -13,12 +13,6 @@ struct nb_hardware {
     nb_touch_t* _Nullable touch;
 };
 
-/**
- * @param[in] config
- * @return a newly allocated platform instance (caller takes ownership)
- */
-nb_hardware_t _Nonnull* nb_hardware_alloc(nb_config_t _Nonnull* config);
-
 #ifdef __cplusplus
 }
 #endif

components/nanobake/inc/nb_lvgl.h

@@ -0,0 +1,17 @@
+#pragma once
+
+#include <lvgl.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct nb_lvgl nb_lvgl_t;
+struct nb_lvgl {
+    lv_disp_t* _Nonnull disp;
+    lv_indev_t* _Nullable touch_indev;
+};
+
+#ifdef __cplusplus
+}
+#endif