Implement LVGL task for POSIX fbdev

src/drv/tft/tft_driver_posix_fbdev.cpp

@@ -70,12 +70,13 @@ int32_t TftFbdevDrv::height()
 static void* gui_entrypoint(void* arg)
 {
 #if HASP_USE_LVGL_TASK
-#error "fbdev LVGL task is not implemented"
-#else
-    // create a LVGL tick thread
-    pthread_t thread;
-    pthread_create(&thread, 0, tick_thread, NULL);
+    // create an LVGL GUI task thread
+    pthread_t gui_pthread;
+    pthread_create(&gui_pthread, 0, (void* (*)(void*))gui_task, NULL);
 #endif
+    // create an LVGL tick thread
+    pthread_t tick_pthread;
+    pthread_create(&tick_pthread, 0, tick_thread, NULL);
     return 0;
 }
 
@@ -181,12 +182,7 @@ void TftFbdevDrv::init(int32_t w, int h)
     }
 #endif
 
-#if HASP_USE_LVGL_TASK
-#error "fbdev LVGL task is not implemented"
-#else
-    // do not use the gui_task(), just init the GUI and return
     gui_entrypoint(NULL);
-#endif
 }
 void TftFbdevDrv::show_info()
 {

user_setups/linux_sdl/linux_fbdev_64bits.ini

@@ -30,6 +30,7 @@ build_flags =
   -D HASP_USE_GIFDECODE=0
   -D HASP_USE_JPGDECODE=0
   -D HASP_USE_MQTT=1
+  -D HASP_USE_LVGL_TASK=1
   -D MQTT_MAX_PACKET_SIZE=2048
   -D HASP_ATTRIBUTE_FAST_MEM=
   -D IRAM_ATTR=                      ; No IRAM_ATTR available