Merge pull request #17681 from aabadie/pr/pkg/lvgl-v8

pkg/lvgl: bump to 8.2.0

dist/tools/doccheck/exclude_patterns

@@ -14709,3 +14709,181 @@ drivers/ft5x06/include/ft5x06_constants\.h:[0-9]+: warning: Member FT5X06_G_MODE
 drivers/ft5x06/include/ft5x06_params\.h:[0-9]+: warning: Member FT5X06_PARAM_TYPE \(macro definition\) of file ft5x06_params\.h is not documented\.
 boards/arduino\-uno/include/board\.h:[0-9]+: warning: Member CONFIG_ZTIMER_USEC_ADJUST_SET \(macro definition\) of file board\.h is not documented\.
 boards/arduino\-uno/include/board\.h:[0-9]+: warning: Member CONFIG_ZTIMER_USEC_ADJUST_SLEEP \(macro definition\) of file board\.h is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_VER_RES_MAX \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_COLOR_DEPTH \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_COLOR_16_SWAP \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_COLOR_SCREEN_TRANSP \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_COLOR_TRANSP \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_ANTIALIAS \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_DISP_DEF_REFR_PERIOD \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_DPI \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_DISP_SMALL_LIMIT \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_DISP_MEDIUM_LIMIT \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_DISP_LARGE_LIMIT \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_MEM_CUSTOM \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_MEM_SIZE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_MEM_ATTR \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_MEM_ADR \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_MEM_AUTO_DEFRAG \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_MEMCPY_MEMSET_STD \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_ENABLE_GC \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_INDEV_DEF_READ_PERIOD \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_INDEV_DEF_DRAG_LIMIT \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_INDEV_DEF_DRAG_THROW \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_INDEV_DEF_LONG_PRESS_TIME \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_INDEV_DEF_LONG_PRESS_REP_TIME \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_INDEV_DEF_GESTURE_LIMIT \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_INDEV_DEF_GESTURE_MIN_VELOCITY \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_ANIMATION \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_SHADOW \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_OUTLINE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_PATTERN \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_VALUE_STR \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_BLEND_MODES \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_OPA_SCALE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_IMG_TRANSFORM \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_GROUP \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_GPU \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_GPU_STM32_DMA2D \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_FILESYSTEM \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_USER_DATA \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_PERF_MONITOR \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_API_EXTENSION_V6 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_API_EXTENSION_V7 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_IMG_CF_INDEXED \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_IMG_CF_ALPHA \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_IMG_CACHE_DEF_SIZE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_BIG_ENDIAN_SYSTEM \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_ATTRIBUTE_TICK_INC \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_ATTRIBUTE_TASK_HANDLER \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_ATTRIBUTE_FLUSH_READY \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_ATTRIBUTE_MEM_ALIGN_SIZE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_ATTRIBUTE_MEM_ALIGN \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_ATTRIBUTE_LARGE_CONST \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_ATTRIBUTE_FAST_MEM \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_EXPORT_CONST_INT\(int_value\) \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_ATTRIBUTE_DMA \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_LOG \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_DEBUG \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_12 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_14 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_16 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_18 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_20 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_22 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_24 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_26 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_28 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_30 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_32 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_34 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_36 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_38 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_40 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_42 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_44 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_46 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_48 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_12_SUBPX \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_MONTSERRAT_28_COMPRESSED \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_DEJAVU_16_PERSIAN_HEBREW \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_SIMSUN_16_CJK \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_UNSCII_8 \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_CUSTOM_DECLARE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_FMT_TXT_LARGE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_FONT_COMPRESSED \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_FONT_SUBPX \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_FONT_SUBPX_BGR \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_THEME_EMPTY \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_THEME_TEMPLATE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_THEME_MATERIAL \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_THEME_MONO \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_THEME_DEFAULT_INCLUDE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_THEME_DEFAULT_INIT \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_THEME_DEFAULT_COLOR_PRIMARY \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_THEME_DEFAULT_COLOR_SECONDARY \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_THEME_DEFAULT_FLAG \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_THEME_DEFAULT_FONT_SMALL \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_THEME_DEFAULT_FONT_NORMAL \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_THEME_DEFAULT_FONT_SUBTITLE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_THEME_DEFAULT_FONT_TITLE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_TXT_ENC \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_TXT_BREAK_CHARS \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_TXT_LINE_BREAK_LONG_LEN \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_TXT_LINE_BREAK_LONG_PRE_MIN_LEN \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_TXT_LINE_BREAK_LONG_POST_MIN_LEN \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_TXT_COLOR_CMD \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_BIDI \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_ARABIC_PERSIAN_CHARS \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_SPRINTF_CUSTOM \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_OBJ_REALIGN \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_EXT_CLICK_AREA \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_ARC \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_BAR \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_BTN \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_BTNMATRIX \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_CALENDAR \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_CALENDAR_WEEK_STARTS_MONDAY \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_CANVAS \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_CHECKBOX \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_CHART \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_CHART_AXIS_TICK_LABEL_MAX_LEN \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_CONT \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_CPICKER \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_DROPDOWN \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_DROPDOWN_DEF_ANIM_TIME \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_GAUGE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_IMG \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_IMGBTN \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_IMGBTN_TILED \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_KEYBOARD \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_LABEL \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_LABEL_DEF_SCROLL_SPEED \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_LABEL_WAIT_CHAR_COUNT \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_LABEL_TEXT_SEL \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_LABEL_LONG_TXT_HINT \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_LED \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_LED_BRIGHT_MIN \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_LED_BRIGHT_MAX \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_LINE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_LIST \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_LIST_DEF_ANIM_TIME \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_LINEMETER \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_LINEMETER_PRECISE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_OBJMASK \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_MSGBOX \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_PAGE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_PAGE_DEF_ANIM_TIME \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_SPINNER \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_SPINNER_DEF_ARC_LENGTH \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_SPINNER_DEF_SPIN_TIME \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_SPINNER_DEF_ANIM \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_ROLLER \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_ROLLER_DEF_ANIM_TIME \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_ROLLER_INF_PAGES \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_SLIDER \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_SPINBOX \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_SWITCH \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_TEXTAREA \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_TEXTAREA_DEF_CURSOR_BLINK_TIME \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_TEXTAREA_DEF_PWD_SHOW_TIME \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_TABLE \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_TABLE_COL_MAX \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_TABLE_CELL_STYLE_CNT \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_TABVIEW \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_TABVIEW_DEF_ANIM_TIME \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_TILEVIEW \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_TILEVIEW_DEF_ANIM_TIME \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member LV_USE_WIN \(macro definition\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member lv_anim_user_data_t \(typedef\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member lv_group_user_data_t \(typedef\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member lv_img_decoder_user_data_t \(typedef\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member lv_disp_drv_user_data_t \(typedef\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member lv_indev_drv_user_data_t \(typedef\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lv_conf\.h:[0-9]+: warning: Member lv_font_user_data_t \(typedef\) of group pkg_lvgl7 is not documented\.
+pkg/lvgl7/include/lvgl_riot\.h:[0-9]+: warning: end of file with unbalanced grouping commands
+pkg/lvgl7/include/lvgl_riot_conf\.h:[0-9]+: warning: end of file with unbalanced grouping commands
+pkg/lvgl7/include/lvgl_riot_conf\.h:[0-9]+: warning: Member LV_TICK_CUSTOM \(macro definition\) of file lvgl_riot_conf\.h is not documented\.
+pkg/lvgl7/include/lvgl_riot_conf\.h:[0-9]+: warning: Member LV_TICK_CUSTOM_INCLUDE \(macro definition\) of file lvgl_riot_conf\.h is not documented\.
+pkg/lvgl7/include/lvgl_riot_conf\.h:[0-9]+: warning: Member LV_TICK_CUSTOM_SYS_TIME_EXPR \(macro definition\) of file lvgl_riot_conf\.h is not documented\.
+pkg/lvgl7/include/lvgl_riot_conf\.h:[0-9]+: warning: Member lv_coord_t \(typedef\) of file lvgl_riot_conf\.h is not documented\.

pkg/lvgl/Kconfig

@@ -13,10 +13,11 @@ menuconfig PACKAGE_LVGL
     select MODULE_LVGL
     select MODULE_LVGL_CORE
     select MODULE_LVGL_DRAW
+    select MODULE_LVGL_DRAW_SW
+    select MODULE_LVGL_EXTRA
     select MODULE_LVGL_FONT
     select MODULE_LVGL_HAL
     select MODULE_LVGL_MISC
-    select MODULE_LVGL_THEMES
     select MODULE_LVGL_WIDGETS
 
     # lvgl is not compatible with non 32bit platforms
@@ -38,8 +39,6 @@ config MODULE_LVGL_CONTRIB_TOUCH
     bool "Touch support"
     select MODULE_TOUCH_DEV
 
-endif # PACKAGE_LVGL
-
 config MODULE_LVGL
     bool
 
@@ -49,6 +48,12 @@ config MODULE_LVGL_CORE
 config MODULE_LVGL_DRAW
     bool
 
+config MODULE_LVGL_DRAW_SW
+    bool
+
+config MODULE_LVGL_EXTRA
+    bool
+
 config MODULE_LVGL_FONT
     bool
 
@@ -58,19 +63,178 @@ config MODULE_LVGL_HAL
 config MODULE_LVGL_MISC
     bool
 
-config MODULE_LVGL_THEMES
-    bool
-
 config MODULE_LVGL_WIDGETS
     bool
 
+config MODULE_LVGL_WIDGET_ARC
+    bool "Arc widget"
+    select LV_USE_ARC if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_BAR
+    bool "Bar widget"
+    select LV_USE_BAR if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_BTN
+    bool "Button widget"
+    select LV_USE_BTN if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_BTNMATRIX
+    bool "Button matrix widget"
+    select LV_USE_BTNMATRIX if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_CANVAS
+    bool "Canvas widget"
+    select LV_USE_CANVAS if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_CHECKBOX
+    bool "Checkbox widget"
+    select LV_USE_CHECKBOX if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_DROPDOWN
+    bool "Dropdown widget"
+    select MODULE_LVGL_WIDGET_LABEL
+    select LV_USE_DROPDOWN if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_IMG
+    bool "Image widget"
+    select MODULE_LVGL_WIDGET_LABEL
+    select LV_USE_IMG if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_LABEL
+    bool "Label widget"
+    select LV_USE_LABEL if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_LINE
+    bool "Line widget"
+    select LV_USE_LINE if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_ROLLER
+    bool "Roller widget"
+    select MODULE_LVGL_WIDGET_LABEL
+    select LV_USE_ROLLER if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_SLIDER
+    bool "Slider widget"
+    select MODULE_LVGL_WIDGET_BAR
+    select LV_USE_SLIDER if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_SWITCH
+    bool "Switch widget"
+    select LV_USE_SWITCH if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_TEXTAREA
+    bool "Textarea widget"
+    select MODULE_LVGL_WIDGET_LABEL
+    select LV_USE_TEXTAREA if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_WIDGET_TABLE
+    bool "Table widget"
+    select LV_USE_TABLE if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_LAYOUT_FLEX
+    bool "Flex extra layout"
+    select LV_USE_FLEX if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_LAYOUT_GRID
+    bool "Grid extra layout"
+    select LV_USE_GRID if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_THEME_BASIC
+    bool "Extra theme basic"
+    select LV_USE_THEME_BASIC if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_THEME_DEFAULT
+    bool "Extra theme default"
+    select LV_USE_THEME_DEFAULT if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_THEME_DEFAULT_DARK
+    bool "Extra theme default in dark mode"
+    select LV_THEME_DEFAULT_DARK if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_THEME_DEFAULT_GROW
+    bool "Extra theme default with button grow mode"
+    select LV_THEME_DEFAULT_GROW if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_THEME_MONO
+    bool "Extra theme mono"
+
+config MODULE_LVGL_EXTRA_WIDGET_ANIMING
+    bool "Animing extra widget"
+    select LV_USE_ANIMING if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_CALENDAR
+    bool "Calendar extra widget"
+    select LV_USE_CALENDAR if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_CHART
+    bool "Chart extra widget"
+    select LV_USE_CHART if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_COLORWHEEL
+    bool "Colorwheel extra widget"
+    select LV_USE_COLORWHEEL if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_IMGBIN
+    bool "Imgbin extra widget"
+    select LV_USE_IMGBIN if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_LED
+    bool "Led extra widget"
+    select LV_USE_LED if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_LIST
+    bool "List extra widget"
+    select LV_USE_LIST if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_MENU
+    bool "Menu extra widget"
+    select LV_USE_MENU if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_METER
+    bool "Meter extra widget"
+    select LV_USE_METER if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_MSGBOX
+    bool "Message box extra widget"
+    select LV_USE_MSGBOX if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_SPAN
+    bool "Window extra widget"
+    select LV_USE_SPAN if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_SPINBOX
+    bool "Spinbox extra widget"
+    select LV_USE_SPINBOX if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_SPINNER
+    bool "Spinner extra widget"
+    select LV_USE_SPINNER if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_TABVIEW
+    bool "Tabview extra widget"
+    select LV_USE_TABVIEW if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_TILEVIEW
+    bool "Tileview extra widget"
+    select LV_USE_TILEVIEW if KCONFIG_USEPKG_LVGL
+
+config MODULE_LVGL_EXTRA_WIDGET_WIN
+    bool "Window extra widget"
+    select MODULE_LVGL_WIDGET_BTN
+    select MODULE_LVGL_WIDGET_IMG
+    select MODULE_LVGL_WIDGET_LABEL
+    select LV_USE_WIN if KCONFIG_USEPKG_LVGL
+
+endif # PACKAGE_LVGL
+
 endif # TEST_KCONFIG
 
 menuconfig KCONFIG_USEPKG_LVGL
     bool "Configure LVGL"
-    depends on USEPKG_LVGL
     help
         Configure LVGL package via Kconfig.
+    # Make sure all widgets are unchecked by default
+    select LV_CONF_MINIMAL
 
 if KCONFIG_USEPKG_LVGL
 

pkg/lvgl/Makefile

@@ -1,25 +1,75 @@
 PKG_NAME=lvgl
 PKG_URL=https://github.com/littlevgl/lvgl
-PKG_VERSION=ec9de515b36641be565d7bace5863ab631ce3b69 # v7.11.0
+PKG_VERSION=0b5a1d4b23975b920ff841ea9cd038802f51711b  # v8.2.0
 PKG_LICENSE=MIT
 
 include $(RIOTBASE)/pkg/pkg.mk
 
-LVGL_MODULES =      \
-    lvgl_core       \
-    lvgl_draw       \
-    lvgl_font       \
-    lvgl_hal        \
-    lvgl_misc       \
-    lvgl_themes     \
-    lvgl_widgets    \
+CFLAGS += -Wno-empty-body
+
+LVGL_DEFAULT_MODULES =  \
+    lvgl_core           \
+    lvgl_draw           \
+    lvgl_draw_sw        \
+    lvgl_extra          \
+    lvgl_font           \
+    lvgl_hal            \
+    lvgl_misc           \
+    lvgl_widgets        \
     #
 
-CFLAGS += -Wno-cast-align
+LVGL_EXTRA_LAYOUTS_MODULES =  \
+    lvgl_extra_layout_flex   \
+    lvgl_extra_layout_grid \
+    #
+
+LVGL_EXTRA_THEMES_MODULES =  \
+    lvgl_extra_theme_basic   \
+    lvgl_extra_theme_default \
+    lvgl_extra_theme_mono \
+    #
+
+LVGL_EXTRA_WIDGETS_MODULES =  \
+    lvgl_extra_widget_animimg \
+    lvgl_extra_widget_calendar \
+    lvgl_extra_widget_chart   \
+    lvgl_extra_widget_colorwheel \
+    lvgl_extra_widget_imgbtn \
+    lvgl_extra_widget_keyboard   \
+    lvgl_extra_widget_led \
+    lvgl_extra_widget_list   \
+    lvgl_extra_widget_menu \
+    lvgl_extra_widget_meter \
+    lvgl_extra_widget_msgbox \
+    lvgl_extra_widget_span   \
+    lvgl_extra_widget_spinbox   \
+    lvgl_extra_widget_spinner   \
+    lvgl_extra_widget_tabview \
+    lvgl_extra_widget_tileview   \
+    lvgl_extra_widget_win \
+    #
+
+LVGL_MODULES = $(LVGL_DEFAULT_MODULES) $(LVGL_EXTRA_LAYOUTS_MODULES) $(LVGL_EXTRA_THEMES_MODULES) $(LVGL_EXTRA_WIDGETS_MODULES)
+LVGL_MODULES_USED = $(filter $(LVGL_MODULES),$(USEMODULE))
 
 .PHONY: lvgl_%
 
-all: $(LVGL_MODULES)
+all: $(LVGL_MODULES_USED)
+
+lvgl_extra_layout_%:
+	$(QQ)"$(MAKE)" -C $(PKG_SOURCE_DIR)/src/extra/layouts/$* -f $(CURDIR)/Makefile.lvgl_module MODULE=$@
+
+lvgl_extra_theme_%:
+	$(QQ)"$(MAKE)" -C $(PKG_SOURCE_DIR)/src/extra/themes/$* -f $(CURDIR)/Makefile.lvgl_module MODULE=$@
+
+lvgl_extra_widget_%:
+	$(QQ)"$(MAKE)" -C $(PKG_SOURCE_DIR)/src/extra/widgets/$* -f $(CURDIR)/Makefile.lvgl_module MODULE=$@
+
+lvgl_extra:
+	$(QQ)"$(MAKE)" -C $(PKG_SOURCE_DIR)/src/extra -f $(CURDIR)/Makefile.lvgl_module MODULE=$@
+
+lvgl_draw_sw:
+	$(QQ)"$(MAKE)" -C $(PKG_SOURCE_DIR)/src/draw/sw -f $(CURDIR)/Makefile.lvgl_module MODULE=$@
 
 lvgl_%:
-	$(QQ)"$(MAKE)" -C $(PKG_SOURCE_DIR)/src/lv_$* -f $(CURDIR)/Makefile.lvgl_module MODULE=$@
+	$(QQ)"$(MAKE)" -C $(PKG_SOURCE_DIR)/src/$* -f $(CURDIR)/Makefile.lvgl_module MODULE=$@

pkg/lvgl/Makefile.dep

@@ -1,12 +1,30 @@
 USEMODULE += lvgl
 USEMODULE += lvgl_core
 USEMODULE += lvgl_draw
+USEMODULE += lvgl_draw_sw
+USEMODULE += lvgl_extra
 USEMODULE += lvgl_font
 USEMODULE += lvgl_hal
 USEMODULE += lvgl_misc
-USEMODULE += lvgl_themes
 USEMODULE += lvgl_widgets
 
+ifneq (,$(filter lvgl_extra_widget_spinner,$(USEMODULE)))
+  USEMODULE += lvgl_widget_arc
+endif
+
+ifneq (,$(filter lvgl_extra_widget_win,$(USEMODULE)))
+  USEMODULE += lvgl_widget_btn
+  USEMODULE += lvgl_widget_img
+endif
+
+ifneq (,$(filter lvgl_widget_textarea lvgl_widget_roller lvgl_widget_img lvgl_widget_dropdown lvgl_extra_widget_win,$(USEMODULE)))
+  USEMODULE += lvgl_widget_label
+endif
+
+ifneq (,$(filter lvgl_widget_slider,$(USEMODULE)))
+  USEMODULE += lvgl_widget_bar
+endif
+
 ifneq (,$(filter lvgl_contrib,$(USEMODULE)))
   USEMODULE += disp_dev
   USEMODULE += core_thread_flags

pkg/lvgl/Makefile.include

@@ -4,6 +4,9 @@ INCLUDES += -I$(PKGDIRBASE)
 # Don't use relative includes in lvgl
 CFLAGS += -DLV_CONF_INCLUDE_SIMPLE
 
+# fix "cast increases required alignment of target type" raised from a header file
+CFLAGS += -Wno-cast-align
+
 ifneq (,$(filter lvgl_contrib,$(USEMODULE)))
   DIRS += $(RIOTBASE)/pkg/lvgl/contrib
 endif
@@ -16,3 +19,24 @@ PSEUDOMODULES += lvgl
 
 # touch capabilities are available via a pseudomodule
 PSEUDOMODULES += lvgl_contrib_touch
+
+# extra modes for the default theme
+PSEUDOMODULES += lvgl_extra_theme_default_dark
+PSEUDOMODULES += lvgl_extra_theme_default_grow
+
+# extra lvgl widgets defined as pseudomodules
+PSEUDOMODULES += lvgl_widget_arc
+PSEUDOMODULES += lvgl_widget_bar
+PSEUDOMODULES += lvgl_widget_btn
+PSEUDOMODULES += lvgl_widget_btnmatrix
+PSEUDOMODULES += lvgl_widget_canvas
+PSEUDOMODULES += lvgl_widget_checkbox
+PSEUDOMODULES += lvgl_widget_dropdown
+PSEUDOMODULES += lvgl_widget_img
+PSEUDOMODULES += lvgl_widget_label
+PSEUDOMODULES += lvgl_widget_line
+PSEUDOMODULES += lvgl_widget_roller
+PSEUDOMODULES += lvgl_widget_slider
+PSEUDOMODULES += lvgl_widget_switch
+PSEUDOMODULES += lvgl_widget_textarea
+PSEUDOMODULES += lvgl_widget_table

pkg/lvgl/contrib/lvgl.c

@@ -32,27 +32,31 @@
 #include "screen_dev.h"
 
 #ifndef LVGL_COLOR_BUF_SIZE
-#define LVGL_COLOR_BUF_SIZE         (LV_HOR_RES_MAX * 5)
+#define LVGL_COLOR_BUF_SIZE                 (LV_HOR_RES_MAX * 10)
 #endif
 
 #ifndef CONFIG_LVGL_INACTIVITY_PERIOD_MS
-#define CONFIG_LVGL_INACTIVITY_PERIOD_MS   (5 * MS_PER_SEC)    /* 5s */
+#define CONFIG_LVGL_INACTIVITY_PERIOD_MS    (5 * MS_PER_SEC)    /* 5s */
 #endif
 
 #ifndef CONFIG_LVGL_TASK_HANDLER_DELAY_MS
-#define CONFIG_LVGL_TASK_HANDLER_DELAY_MS  (5)                 /* 5ms */
+#define CONFIG_LVGL_TASK_HANDLER_DELAY_MS   (5)                 /* 5ms */
 #endif
 
 #ifndef LVGL_THREAD_FLAG
-#define LVGL_THREAD_FLAG            (1 << 7)
+#define LVGL_THREAD_FLAG                    (1 << 7)
 #endif
 
 static kernel_pid_t _task_thread_pid;
 
-static lv_disp_buf_t disp_buf;
-static lv_color_t buf[LVGL_COLOR_BUF_SIZE];
+static lv_disp_draw_buf_t disp_buf;
+static lv_color_t draw_buf[LVGL_COLOR_BUF_SIZE];
 
 static screen_dev_t *_screen_dev = NULL;
+static lv_disp_drv_t disp_drv;
+#if IS_USED(MODULE_TOUCH_DEV)
+static lv_indev_drv_t indev_drv;
+#endif
 
 static void _disp_map(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_p)
 {
@@ -60,6 +64,10 @@ static void _disp_map(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *col
         return;
     }
 
+    if (!area) {
+        return;
+    }
+
     disp_dev_map(_screen_dev->display, area->x1, area->x2, area->y1, area->y2,
                  (const uint16_t *)color_p);
 
@@ -70,10 +78,14 @@ static void _disp_map(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *col
 
 #if IS_USED(MODULE_TOUCH_DEV)
 /* adapted from https://github.com/lvgl/lvgl/tree/v6.1.2#add-littlevgl-to-your-project */
-static bool _touch_read(lv_indev_drv_t *indev_driver, lv_indev_data_t *data)
+static void _touch_read(lv_indev_drv_t *indev_driver, lv_indev_data_t *data)
 {
     if (!_screen_dev->touch) {
-        return false;
+        return;
+    }
+
+    if (!data) {
+        return;
     }
 
     (void)indev_driver;
@@ -94,7 +106,7 @@ static bool _touch_read(lv_indev_drv_t *indev_driver, lv_indev_data_t *data)
     data->point.x = last_x;
     data->point.y = last_y;
 
-    return false;
+    return;
 }
 #endif
 
@@ -104,21 +116,20 @@ void lvgl_init(screen_dev_t *screen_dev)
     _screen_dev = screen_dev;
     assert(screen_dev->display);
 
-    lv_disp_drv_t disp_drv;
+    lv_disp_draw_buf_init(&disp_buf, draw_buf, NULL, LVGL_COLOR_BUF_SIZE);
+
     lv_disp_drv_init(&disp_drv);
+    disp_drv.draw_buf = &disp_buf;
+    disp_drv.flush_cb = _disp_map;
     /* Configure horizontal and vertical resolutions based on the
        underlying display device parameters */
     disp_drv.hor_res = disp_dev_width(screen_dev->display);
     disp_drv.ver_res = disp_dev_height(screen_dev->display);
 
-    disp_drv.flush_cb = _disp_map;
-    disp_drv.buffer = &disp_buf;
     lv_disp_drv_register(&disp_drv);
-    lv_disp_buf_init(&disp_buf, buf, NULL, LVGL_COLOR_BUF_SIZE);
 
 #if IS_USED(MODULE_TOUCH_DEV)
     if (screen_dev->touch) {
-        lv_indev_drv_t indev_drv;
         lv_indev_drv_init(&indev_drv);
         indev_drv.type = LV_INDEV_TYPE_POINTER;
         indev_drv.read_cb = _touch_read;
@@ -131,18 +142,15 @@ void lvgl_run(void)
 {
     _task_thread_pid = thread_getpid();
 
-    lv_task_handler();
-
     while (1) {
         /* Normal operation (no sleep) in < CONFIG_LVGL_INACTIVITY_PERIOD_MS msec
            inactivity */
         if (lv_disp_get_inactive_time(NULL) < CONFIG_LVGL_INACTIVITY_PERIOD_MS) {
-            lv_task_handler();
+            lv_timer_handler();
         }
         else {
             /* Block after LVGL_ACTIVITY_PERIOD msec inactivity */
             thread_flags_wait_one(LVGL_THREAD_FLAG);
-
             /* trigger an activity so the task handler is called on the next loop */
             lv_disp_trig_activity(NULL);
         }

pkg/lvgl/include/lvgl_riot_conf.h

@@ -19,18 +19,40 @@
 #ifndef LVGL_RIOT_CONF_H
 #define LVGL_RIOT_CONF_H
 
+#include "board.h"
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
+/** Maximal horizontal resolution to support by the library.*/
+#ifndef LV_HOR_RES_MAX
+#ifdef LCD_SCREEN_WIDTH
+#define LV_HOR_RES_MAX          (LCD_SCREEN_WIDTH)
+#else
+#define LV_HOR_RES_MAX          (320)
+#endif
+#endif
+
+/** Maximal vertical resolution to support by the library.*/
+#ifndef LV_VER_RES_MAX
+#ifdef LCD_SCREEN_HEIGHT
+#define LV_VER_RES_MAX          (LCD_SCREEN_HEIGHT)
+#else
+#define LV_VER_RES_MAX          (240)
+#endif
+#endif
+
+/** Will be added where memories needs to be aligned (with -Os data might not be aligned to boundary by default).
+ * E.g. __attribute__((aligned(4)))*/
+#define LV_ATTRIBUTE_MEM_ALIGN  __attribute__((aligned(4)))
+
 /* Type of coordinates. Should be `int16_t` (or `int32_t` for extreme cases) */
 typedef int16_t lv_coord_t;
 
 #define LV_TICK_CUSTOM     1
-#if LV_TICK_CUSTOM == 1
 #define LV_TICK_CUSTOM_INCLUDE  "ztimer.h"       /*Header for the sys time function*/
 #define LV_TICK_CUSTOM_SYS_TIME_EXPR (ztimer_now(ZTIMER_MSEC))     /*Expression evaluating to current systime in ms*/
-#endif   /*LV_TICK_CUSTOM*/
 
 #ifdef __cplusplus
 }

pkg/lvgl/patches/0001-widgets-make-dependencies-internal-handling-consiste.patch

@@ -0,0 +1,181 @@
+From ec1a78d4c7a25d79e38197cdfc513efe4724c0ec Mon Sep 17 00:00:00 2001
+From: Alexandre Abadie <alexandre.abadie@inria.fr>
+Date: Tue, 22 Feb 2022 09:44:30 +0100
+Subject: [PATCH 1/1] widgets: make dependencies internal handling consistent
+ when using Kconfig
+
+---
+ src/lv_conf_internal.h  | 72 ++++++++++++++++++++++++++++++-----------
+ src/widgets/lv_img.h    |  5 +++
+ src/widgets/lv_roller.h |  5 +++
+ 3 files changed, 64 insertions(+), 18 deletions(-)
+
+diff --git a/src/lv_conf_internal.h b/src/lv_conf_internal.h
+index 456c7284..a07b51bb 100644
+--- a/src/lv_conf_internal.h
++++ b/src/lv_conf_internal.h
+@@ -597,15 +597,23 @@
+ /*Enable asserts if an operation is failed or an invalid data is found.
+  *If LV_USE_LOG is enabled an error message will be printed on failure*/
+ #ifndef LV_USE_ASSERT_NULL
+-    #ifdef CONFIG_LV_USE_ASSERT_NULL
+-        #define LV_USE_ASSERT_NULL CONFIG_LV_USE_ASSERT_NULL
++    #ifdef _LV_KCONFIG_PRESENT
++        #ifdef CONFIG_LV_USE_ASSERT_NULL
++            #define LV_USE_ASSERT_NULL CONFIG_LV_USE_ASSERT_NULL
++        #else
++            #define LV_USE_ASSERT_NULL 0
++        #endif
+     #else
+         #define LV_USE_ASSERT_NULL          1   /*Check if the parameter is NULL. (Very fast, recommended)*/
+     #endif
+ #endif
+ #ifndef LV_USE_ASSERT_MALLOC
+-    #ifdef CONFIG_LV_USE_ASSERT_MALLOC
+-        #define LV_USE_ASSERT_MALLOC CONFIG_LV_USE_ASSERT_MALLOC
++    #ifdef _LV_KCONFIG_PRESENT
++        #ifdef CONFIG_LV_USE_ASSERT_MALLOC
++            #define LV_USE_ASSERT_MALLOC CONFIG_LV_USE_ASSERT_MALLOC
++        #else
++            #define LV_USE_ASSERT_MALLOC 0
++        #endif
+     #else
+         #define LV_USE_ASSERT_MALLOC        1   /*Checks is the memory is successfully allocated or no. (Very fast, recommended)*/
+     #endif
+@@ -1341,16 +1349,24 @@
+ #endif
+ 
+ #ifndef LV_USE_DROPDOWN
+-    #ifdef CONFIG_LV_USE_DROPDOWN
+-        #define LV_USE_DROPDOWN CONFIG_LV_USE_DROPDOWN
++    #ifdef _LV_KCONFIG_PRESENT
++        #ifdef CONFIG_LV_USE_DROPDOWN
++            #define LV_USE_DROPDOWN CONFIG_LV_USE_DROPDOWN
++        #else
++            #define LV_USE_DROPDOWN 0
++        #endif
+     #else
+         #define LV_USE_DROPDOWN   1   /*Requires: lv_label*/
+     #endif
+ #endif
+ 
+ #ifndef LV_USE_IMG
+-    #ifdef CONFIG_LV_USE_IMG
+-        #define LV_USE_IMG CONFIG_LV_USE_IMG
++    #ifdef _LV_KCONFIG_PRESENT
++        #ifdef CONFIG_LV_USE_IMG
++            #define LV_USE_IMG CONFIG_LV_USE_IMG
++        #else
++            #define LV_USE_IMG 0
++        #endif
+     #else
+         #define LV_USE_IMG        1   /*Requires: lv_label*/
+     #endif
+@@ -1369,15 +1385,23 @@
+ #endif
+ #if LV_USE_LABEL
+     #ifndef LV_LABEL_TEXT_SELECTION
+-        #ifdef CONFIG_LV_LABEL_TEXT_SELECTION
+-            #define LV_LABEL_TEXT_SELECTION CONFIG_LV_LABEL_TEXT_SELECTION
++        #ifdef _LV_KCONFIG_PRESENT
++            #ifdef CONFIG_LV_LABEL_TEXT_SELECTION
++                #define LV_LABEL_TEXT_SELECTION CONFIG_LV_LABEL_TEXT_SELECTION
++            #else
++                #define LV_LABEL_TEXT_SELECTION 0
++            #endif
+         #else
+             #define LV_LABEL_TEXT_SELECTION 1 /*Enable selecting text of the label*/
+         #endif
+     #endif
+     #ifndef LV_LABEL_LONG_TXT_HINT
+-        #ifdef CONFIG_LV_LABEL_LONG_TXT_HINT
+-            #define LV_LABEL_LONG_TXT_HINT CONFIG_LV_LABEL_LONG_TXT_HINT
++        #ifdef _LV_KCONFIG_PRESENT
++            #ifdef CONFIG_LV_LABEL_LONG_TXT_HINT
++                #define LV_LABEL_LONG_TXT_HINT CONFIG_LV_LABEL_LONG_TXT_HINT
++            #else
++                #define LV_LABEL_LONG_TXT_HINT 0
++            #endif
+         #else
+             #define LV_LABEL_LONG_TXT_HINT 1  /*Store some extra info in labels to speed up drawing of very long texts*/
+         #endif
+@@ -1397,8 +1421,12 @@
+ #endif
+ 
+ #ifndef LV_USE_ROLLER
+-    #ifdef CONFIG_LV_USE_ROLLER
+-        #define LV_USE_ROLLER CONFIG_LV_USE_ROLLER
++    #ifdef _LV_KCONFIG_PRESENT
++        #ifdef CONFIG_LV_USE_ROLLER
++            #define LV_USE_ROLLER CONFIG_LV_USE_ROLLER
++        #else
++            #define LV_USE_ROLLER 0
++        #endif
+     #else
+         #define LV_USE_ROLLER     1   /*Requires: lv_label*/
+     #endif
+@@ -1414,8 +1442,12 @@
+ #endif
+ 
+ #ifndef LV_USE_SLIDER
+-    #ifdef CONFIG_LV_USE_SLIDER
+-        #define LV_USE_SLIDER CONFIG_LV_USE_SLIDER
++    #ifdef _LV_KCONFIG_PRESENT
++        #ifdef CONFIG_LV_USE_SLIDER
++            #define LV_USE_SLIDER CONFIG_LV_USE_SLIDER
++        #else
++            #define LV_USE_SLIDER 0
++        #endif
+     #else
+         #define LV_USE_SLIDER     1   /*Requires: lv_bar*/
+     #endif
+@@ -1434,8 +1466,12 @@
+ #endif
+ 
+ #ifndef LV_USE_TEXTAREA
+-    #ifdef CONFIG_LV_USE_TEXTAREA
+-        #define LV_USE_TEXTAREA CONFIG_LV_USE_TEXTAREA
++    #ifdef _LV_KCONFIG_PRESENT
++        #ifdef CONFIG_LV_USE_TEXTAREA
++            #define LV_USE_TEXTAREA CONFIG_LV_USE_TEXTAREA
++        #else
++            #define LV_USE_TEXTAREA 0
++        #endif
+     #else
+         #define LV_USE_TEXTAREA   1   /*Requires: lv_label*/
+     #endif
+diff --git a/src/widgets/lv_img.h b/src/widgets/lv_img.h
+index 2a005643..9068c50e 100644
+--- a/src/widgets/lv_img.h
++++ b/src/widgets/lv_img.h
+@@ -17,6 +17,11 @@ extern "C" {
+ 
+ #if LV_USE_IMG != 0
+ 
++/*Testing of dependencies*/
++#if LV_USE_LABEL == 0
++#error "lv_img: lv_label is required. Enable it in lv_conf.h (LV_USE_LABEL 1)"
++#endif
++
+ #include "../core/lv_obj.h"
+ #include "../misc/lv_fs.h"
+ #include "../draw/lv_draw.h"
+diff --git a/src/widgets/lv_roller.h b/src/widgets/lv_roller.h
+index d90001d9..14411dea 100644
+--- a/src/widgets/lv_roller.h
++++ b/src/widgets/lv_roller.h
+@@ -17,6 +17,11 @@ extern "C" {
+ 
+ #if LV_USE_ROLLER != 0
+ 
++/*Testing of dependencies*/
++#if LV_USE_LABEL == 0
++#error "lv_roller: lv_label is required. Enable it in lv_conf.h (LV_USE_ROLLER 1)"
++#endif
++
+ #include "../core/lv_obj.h"
+ #include "lv_label.h"
+ 
+-- 
+2.32.0
+

pkg/lvgl7/Kconfig

@@ -0,0 +1,91 @@
+# Copyright (c) 2021 Inria
+#
+# This file is subject to the terms and conditions of the GNU Lesser
+# General Public License v2.1. See the file LICENSE in the top level
+# directory for more details.
+#
+
+if TEST_KCONFIG
+
+menuconfig PACKAGE_LVGL
+    bool "LVGL package"
+    imply MODULE_AUTO_INIT_SCREEN
+    select MODULE_LVGL
+    select MODULE_LVGL_CORE
+    select MODULE_LVGL_DRAW
+    select MODULE_LVGL_FONT
+    select MODULE_LVGL_HAL
+    select MODULE_LVGL_MISC
+    select MODULE_LVGL_THEMES
+    select MODULE_LVGL_WIDGETS
+
+    # lvgl is not compatible with non 32bit platforms
+    # Building lv_misc triggers the error:
+    # "left shift count >= width of type [-Werror=shift-count-overflow]"
+    depends on !HAS_ARCH_8BIT
+    depends on !HAS_ARCH_16BIT
+
+if PACKAGE_LVGL
+
+config MODULE_LVGL_CONTRIB
+    bool "Contrib"
+    select MODULE_DISP_DEV
+    select MODULE_CORE_THREAD_FLAGS
+    select MODULE_ZTIMER
+    select MODULE_ZTIMER_MSEC
+
+config MODULE_LVGL_CONTRIB_TOUCH
+    bool "Touch support"
+    select MODULE_TOUCH_DEV
+
+endif # PACKAGE_LVGL
+
+config MODULE_LVGL
+    bool
+
+config MODULE_LVGL_CORE
+    bool
+
+config MODULE_LVGL_DRAW
+    bool
+
+config MODULE_LVGL_FONT
+    bool
+
+config MODULE_LVGL_HAL
+    bool
+
+config MODULE_LVGL_MISC
+    bool
+
+config MODULE_LVGL_THEMES
+    bool
+
+config MODULE_LVGL_WIDGETS
+    bool
+
+endif # TEST_KCONFIG
+
+menuconfig KCONFIG_USEPKG_LVGL
+    bool "Configure LVGL"
+    depends on USEPKG_LVGL
+    help
+        Configure LVGL package via Kconfig.
+
+if KCONFIG_USEPKG_LVGL
+
+menu "LVGL RIOT configuration"
+
+    config LVGL_INACTIVITY_PERIOD_MS
+        int "Inactivity period before blocking the LVGL thread (in ms)"
+        default 5000
+
+    config LVGL_TASK_HANDLER_DELAY_US
+        int "Delay between calls to the lvgl task handler (in us)"
+        default 5000
+
+endmenu
+
+osource "$(RIOTBASE)/build/pkg/lvgl/Kconfig"
+
+endif

pkg/lvgl7/Makefile

@@ -0,0 +1,25 @@
+PKG_NAME=lvgl
+PKG_URL=https://github.com/littlevgl/lvgl
+PKG_VERSION=ec9de515b36641be565d7bace5863ab631ce3b69 # v7.11.0
+PKG_LICENSE=MIT
+
+include $(RIOTBASE)/pkg/pkg.mk
+
+LVGL_MODULES =      \
+    lvgl_core       \
+    lvgl_draw       \
+    lvgl_font       \
+    lvgl_hal        \
+    lvgl_misc       \
+    lvgl_themes     \
+    lvgl_widgets    \
+    #
+
+CFLAGS += -Wno-cast-align
+
+.PHONY: lvgl_%
+
+all: $(LVGL_MODULES)
+
+lvgl_%:
+	$(QQ)"$(MAKE)" -C $(PKG_SOURCE_DIR)/src/lv_$* -f $(CURDIR)/Makefile.lvgl_module MODULE=$@

pkg/lvgl7/Makefile.dep

@@ -0,0 +1,26 @@
+USEMODULE += lvgl
+USEMODULE += lvgl7
+USEMODULE += lvgl_core
+USEMODULE += lvgl_draw
+USEMODULE += lvgl_font
+USEMODULE += lvgl_hal
+USEMODULE += lvgl_misc
+USEMODULE += lvgl_themes
+USEMODULE += lvgl_widgets
+
+ifneq (,$(filter lvgl_contrib,$(USEMODULE)))
+  USEMODULE += disp_dev
+  USEMODULE += core_thread_flags
+  USEMODULE += ztimer
+  USEMODULE += ztimer_msec
+endif
+
+ifneq (,$(filter lvgl_contrib_touch,$(USEMODULE)))
+  USEMODULE += touch_dev
+endif
+
+# lvgl is not compatible with non 32bit platforms
+# Building lv_misc triggers the error:
+# "left shift count >= width of type [-Werror=shift-count-overflow]"
+FEATURES_BLACKLIST += arch_8bit
+FEATURES_BLACKLIST += arch_16bit

pkg/lvgl7/Makefile.include

@@ -0,0 +1,21 @@
+$(warning LVGL v7 is deprecated, migrate to LVGL v8 as soon as possible)
+
+INCLUDES += -I$(RIOTBASE)/pkg/lvgl7/include
+INCLUDES += -I$(PKGDIRBASE)
+
+# Don't use relative includes in lvgl
+CFLAGS += -DLV_CONF_INCLUDE_SIMPLE
+
+ifneq (,$(filter lvgl_contrib,$(USEMODULE)))
+  DIRS += $(RIOTBASE)/pkg/lvgl7/contrib
+endif
+
+# Configure the lvgl_riot_conf.h header for lvgl kconfig management
+CFLAGS += -DLV_CONF_KCONFIG_EXTERNAL_INCLUDE=\""lvgl_riot_conf.h"\"
+
+# lvgl module is not a concrete module, so declare it as a pseudomodule
+PSEUDOMODULES += lvgl
+PSEUDOMODULES += lvgl7
+
+# touch capabilities are available via a pseudomodule
+PSEUDOMODULES += lvgl_contrib_touch

pkg/lvgl7/Makefile.lvgl_module

@@ -0,0 +1,10 @@
+CFLAGS += -Wno-unused-parameter
+CFLAGS += -Wno-sign-compare
+CFLAGS += -Wno-unused-function
+CFLAGS += -Wno-maybe-uninitialized
+
+ifeq (llvm,$(TOOLCHAIN))
+  CFLAGS += -Wno-missing-braces
+endif
+
+include $(RIOTBASE)/Makefile.base

pkg/lvgl7/contrib/Makefile

@@ -0,0 +1,3 @@
+MODULE = lvgl_contrib
+
+include $(RIOTBASE)/Makefile.base

pkg/lvgl7/contrib/lvgl.c

@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2019-2020 Inria
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     pkg_lvgl7
+ * @{
+ *
+ * @file
+ * @brief       LittlevGL glue code
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ * @}
+ */
+
+#include <assert.h>
+
+#include "kernel_defines.h"
+#include "thread.h"
+
+#include "timex.h"
+#include "ztimer.h"
+#include "log.h"
+
+#include "lvgl/lvgl.h"
+#include "lvgl_riot.h"
+
+#include "screen_dev.h"
+
+#ifndef LVGL_COLOR_BUF_SIZE
+#define LVGL_COLOR_BUF_SIZE         (LV_HOR_RES_MAX * 5)
+#endif
+
+#ifndef CONFIG_LVGL_INACTIVITY_PERIOD_MS
+#define CONFIG_LVGL_INACTIVITY_PERIOD_MS   (5 * MS_PER_SEC)    /* 5s */
+#endif
+
+#ifndef CONFIG_LVGL_TASK_HANDLER_DELAY_MS
+#define CONFIG_LVGL_TASK_HANDLER_DELAY_MS  (5)                 /* 5ms */
+#endif
+
+#ifndef LVGL_THREAD_FLAG
+#define LVGL_THREAD_FLAG            (1 << 7)
+#endif
+
+static kernel_pid_t _task_thread_pid;
+
+static lv_disp_buf_t disp_buf;
+static lv_color_t buf[LVGL_COLOR_BUF_SIZE];
+
+static screen_dev_t *_screen_dev = NULL;
+
+static void _disp_map(lv_disp_drv_t *drv, const lv_area_t *area, lv_color_t *color_p)
+{
+    if (!_screen_dev->display) {
+        return;
+    }
+
+    disp_dev_map(_screen_dev->display, area->x1, area->x2, area->y1, area->y2,
+                 (const uint16_t *)color_p);
+
+    LOG_DEBUG("[lvgl] flush display\n");
+
+    lv_disp_flush_ready(drv);
+}
+
+#if IS_USED(MODULE_TOUCH_DEV)
+/* adapted from https://github.com/lvgl/lvgl/tree/v6.1.2#add-littlevgl-to-your-project */
+static bool _touch_read(lv_indev_drv_t *indev_driver, lv_indev_data_t *data)
+{
+    if (!_screen_dev->touch) {
+        return false;
+    }
+
+    (void)indev_driver;
+    static lv_coord_t last_x = 0;
+    static lv_coord_t last_y = 0;
+
+    touch_t positions[1];
+    uint8_t touches = touch_dev_touches(_screen_dev->touch, positions, 1);
+
+    /* Save the state and save the pressed coordinates */
+    data->state = (touches > 0) ? LV_INDEV_STATE_PR : LV_INDEV_STATE_REL;
+    if (data->state == LV_INDEV_STATE_PR) {
+        last_x = positions[0].x;
+        last_y = positions[0].y;
+    }
+
+    /* Set the coordinates (if released use the last pressed coordinates) */
+    data->point.x = last_x;
+    data->point.y = last_y;
+
+    return false;
+}
+#endif
+
+void lvgl_init(screen_dev_t *screen_dev)
+{
+    lv_init();
+    _screen_dev = screen_dev;
+    assert(screen_dev->display);
+
+    lv_disp_drv_t disp_drv;
+    lv_disp_drv_init(&disp_drv);
+    /* Configure horizontal and vertical resolutions based on the
+       underlying display device parameters */
+    disp_drv.hor_res = disp_dev_width(screen_dev->display);
+    disp_drv.ver_res = disp_dev_height(screen_dev->display);
+
+    disp_drv.flush_cb = _disp_map;
+    disp_drv.buffer = &disp_buf;
+    lv_disp_drv_register(&disp_drv);
+    lv_disp_buf_init(&disp_buf, buf, NULL, LVGL_COLOR_BUF_SIZE);
+
+#if IS_USED(MODULE_TOUCH_DEV)
+    if (screen_dev->touch) {
+        lv_indev_drv_t indev_drv;
+        lv_indev_drv_init(&indev_drv);
+        indev_drv.type = LV_INDEV_TYPE_POINTER;
+        indev_drv.read_cb = _touch_read;
+        lv_indev_drv_register(&indev_drv);
+    }
+#endif
+}
+
+void lvgl_run(void)
+{
+    _task_thread_pid = thread_getpid();
+
+    lv_task_handler();
+
+    while (1) {
+        /* Normal operation (no sleep) in < CONFIG_LVGL_INACTIVITY_PERIOD_MS msec
+           inactivity */
+        if (lv_disp_get_inactive_time(NULL) < CONFIG_LVGL_INACTIVITY_PERIOD_MS) {
+            lv_task_handler();
+        }
+        else {
+            /* Block after LVGL_ACTIVITY_PERIOD msec inactivity */
+            thread_flags_wait_one(LVGL_THREAD_FLAG);
+
+            /* trigger an activity so the task handler is called on the next loop */
+            lv_disp_trig_activity(NULL);
+        }
+
+        ztimer_sleep(ZTIMER_MSEC, CONFIG_LVGL_TASK_HANDLER_DELAY_MS);
+    }
+}
+
+void lvgl_wakeup(void)
+{
+    thread_t *tcb = thread_get(_task_thread_pid);
+    thread_flags_set(tcb, LVGL_THREAD_FLAG);
+}

pkg/lvgl7/doc.txt

@@ -0,0 +1,31 @@
+/**
+@defgroup pkg_lvgl7 LittlevGL - Open-Source Embedded GUI Library
+@ingroup  pkg
+@brief    LittlevGL package for RIOT
+
+@see      https://github.com/littlevgl/lvgl
+@deprecated  LVGL v7 Will not be available after the 2022.04, please migrate to
+             LVGL v8.
+
+## Configuration options
+
+The package can be configured with using several variables. These variables can
+either be configured using CFLAGS or using Kconfig (via `make menuconfig`).
+LVGL_TASK_THREAD_PRIO cannot be configured via Kconfig.
+
+### Engine settings
+
+- `CONFIG_LVGL_INACTIVITY_PERIOD_MS`: maximum inactivity period before going to sleep in ms.
+  (default: 5s)
+- `CONFIG_LVGL_TASK_HANDLER_DELAY_MS`: delay between lvgl task handle call in us.
+  (default: 5ms)
+- `LVGL_TASK_THREAD_PRIO`: lvgl task handler thread priority.
+  (default: THREAD_PRIORITY_MAIN - 1)
+
+Example of command line for changing the max activity period to 5s:
+
+```
+CFLAGS=-DCONFIG_LVGL_ACTIVITY_PERIOD=5000 make -C tests/pkg_lvgl
+```
+
+ */

pkg/lvgl7/include/lv_conf.h

@@ -0,0 +1,749 @@
+/*
+ * Copyright (C) 2019 Inria
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     pkg_lvgl7
+ * @brief       LittlevGL configuration macros
+ * @{
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ */
+
+#ifndef LV_CONF_H
+#define LV_CONF_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include "kernel_defines.h"
+#include "lvgl_riot_conf.h"
+
+/*====================
+   Graphical settings
+ *====================*/
+
+/* Maximal horizontal and vertical resolution to support by the library.*/
+#ifndef LV_HOR_RES_MAX
+#define LV_HOR_RES_MAX          (320)
+#endif
+
+#ifndef LV_VER_RES_MAX
+#define LV_VER_RES_MAX          (240)
+#endif
+
+/* Color depth:
+ * - 1:  1 byte per pixel
+ * - 8:  RGB233
+ * - 16: RGB565
+ * - 32: ARGB8888
+ */
+#ifndef LV_COLOR_DEPTH
+#define LV_COLOR_DEPTH     16
+#endif
+
+/* Swap the 2 bytes of RGB565 color.
+ * Useful if the display has a 8 bit interface (e.g. SPI)*/
+#ifndef LV_COLOR_16_SWAP
+#if IS_USED(MODULE_ILI9341)
+#define LV_COLOR_16_SWAP   1
+#else
+#define LV_COLOR_16_SWAP   0
+#endif
+#endif
+
+/* 1: Enable screen transparency.
+ * Useful for OSD or other overlapping GUIs.
+ * Requires `LV_COLOR_DEPTH = 32` colors and the screen's style should be modified: `style.body.opa = ...`*/
+#define LV_COLOR_SCREEN_TRANSP    0
+
+/*Images pixels with this color will not be drawn (with chroma keying)*/
+#define LV_COLOR_TRANSP    LV_COLOR_LIME         /*LV_COLOR_LIME: pure green*/
+
+/* Enable anti-aliasing (lines, and radiuses will be smoothed) */
+#define LV_ANTIALIAS        1
+
+/* Default display refresh period.
+ * Can be changed in the display driver (`lv_disp_drv_t`).*/
+#define LV_DISP_DEF_REFR_PERIOD      10      /*[ms]*/
+
+/* Dot Per Inch: used to initialize default sizes.
+ * E.g. a button with width = LV_DPI / 2 -> half inch wide
+ * (Not so important, you can adjust it to modify default sizes and spaces)*/
+#define LV_DPI              100     /*[px]*/
+
+/* The the real width of the display changes some default values:
+ * default object sizes, layout of examples, etc.
+ * According to the width of the display (hor. res. / dpi)
+ * the displays fall in 4 categories.
+ * The 4th is extra large which has no upper limit so not listed here
+ * The upper limit of the categories are set below in 0.1 inch unit.
+ */
+#define LV_DISP_SMALL_LIMIT  30
+#define LV_DISP_MEDIUM_LIMIT 50
+#define LV_DISP_LARGE_LIMIT  70
+
+/*=========================
+   Memory manager settings
+ *=========================*/
+
+/* LittelvGL's internal memory manager's settings.
+ * The graphical objects and other related data are stored here. */
+
+/* 1: use custom malloc/free, 0: use the built-in `lv_mem_alloc` and `lv_mem_free` */
+#define LV_MEM_CUSTOM      0
+#if LV_MEM_CUSTOM == 0
+/* Size of the memory used by `lv_mem_alloc` in bytes (>= 2kB)*/
+#ifndef LV_MEM_SIZE
+#define LV_MEM_SIZE       (5U * 1024U)
+#endif
+
+/* Compiler prefix for a big array declaration */
+#define LV_MEM_ATTR
+
+/* Set an address for the memory pool instead of allocating it as an array.
+ * Can be in external SRAM too. */
+#define LV_MEM_ADR          0
+
+/* Automatically defrag. on free. Defrag. means joining the adjacent free cells. */
+#define LV_MEM_AUTO_DEFRAG  1
+#else       /*LV_MEM_CUSTOM*/
+#define LV_MEM_CUSTOM_INCLUDE <stdlib.h>   /*Header for the dynamic memory function*/
+#define LV_MEM_CUSTOM_ALLOC   malloc       /*Wrapper to malloc*/
+#define LV_MEM_CUSTOM_FREE    free         /*Wrapper to free*/
+#endif     /*LV_MEM_CUSTOM*/
+
+/* Use the standard memcpy and memset instead of LVGL's own functions.
+ * The standard functions might or might not be faster depending on their implementation. */
+#define LV_MEMCPY_MEMSET_STD    0
+
+/* Garbage Collector settings
+ * Used if lvgl is binded to higher level language and the memory is managed by that language */
+#define LV_ENABLE_GC 0
+#if LV_ENABLE_GC != 0
+#define LV_GC_INCLUDE "gc.h"                           /*Include Garbage Collector related things*/
+#define LV_MEM_CUSTOM_REALLOC   your_realloc           /*Wrapper to realloc*/
+#define LV_MEM_CUSTOM_GET_SIZE  your_mem_get_size      /*Wrapper to lv_mem_get_size*/
+#endif /* LV_ENABLE_GC */
+
+/*=======================
+   Input device settings
+ *=======================*/
+
+/* Input device default settings.
+ * Can be changed in the Input device driver (`lv_indev_drv_t`)*/
+
+/* Input device read period in milliseconds */
+#define LV_INDEV_DEF_READ_PERIOD          30
+
+/* Drag threshold in pixels */
+#define LV_INDEV_DEF_DRAG_LIMIT           10
+
+/* Drag throw slow-down in [%]. Greater value -> faster slow-down */
+#define LV_INDEV_DEF_DRAG_THROW           20
+
+/* Long press time in milliseconds.
+ * Time to send `LV_EVENT_LONG_PRESSSED`) */
+#define LV_INDEV_DEF_LONG_PRESS_TIME      400
+
+/* Repeated trigger period in long press [ms]
+ * Time between `LV_EVENT_LONG_PRESSED_REPEAT */
+#define LV_INDEV_DEF_LONG_PRESS_REP_TIME  100
+
+/* Gesture threshold in pixels */
+#define LV_INDEV_DEF_GESTURE_LIMIT        50
+
+/* Gesture min velocity at release before swipe (pixels)*/
+#define LV_INDEV_DEF_GESTURE_MIN_VELOCITY 3
+
+/*==================
+ * Feature usage
+ *==================*/
+
+/*1: Enable the Animations */
+#define LV_USE_ANIMATION        1
+#if LV_USE_ANIMATION
+
+/*Declare the type of the user data of animations (can be e.g. `void *`, `int`, `struct`)*/
+typedef void * lv_anim_user_data_t;
+#endif
+
+/* 1: Enable shadow drawing*/
+#define LV_USE_SHADOW           0
+#if LV_USE_SHADOW
+/* Allow buffering some shadow calculation
+ * LV_SHADOW_CACHE_SIZE is the max. shadow size to buffer,
+ * where shadow size is `shadow_width + radius`
+ * Caching has LV_SHADOW_CACHE_SIZE^2 RAM cost*/
+#define LV_SHADOW_CACHE_SIZE    0
+#endif
+
+/*1: enable outline drawing on rectangles*/
+#define LV_USE_OUTLINE          0
+
+/*1: enable pattern drawing on rectangles*/
+#define LV_USE_PATTERN          0
+
+/*1: enable value string drawing on rectangles*/
+#define LV_USE_VALUE_STR        0
+
+/* 1: Use other blend modes than normal (`LV_BLEND_MODE_...`)*/
+#define LV_USE_BLEND_MODES      0
+
+/* 1: Use the `opa_scale` style property to set the opacity of an object and its children at once*/
+#define LV_USE_OPA_SCALE        0
+
+/* 1: Use image zoom and rotation*/
+#define LV_USE_IMG_TRANSFORM    0
+
+/* 1: Enable object groups (for keyboard/encoder navigation) */
+#define LV_USE_GROUP            1
+#if LV_USE_GROUP
+typedef void * lv_group_user_data_t;
+#endif  /*LV_USE_GROUP*/
+
+/* 1: Enable GPU interface*/
+#define LV_USE_GPU              0   /*Only enables `gpu_fill_cb` and `gpu_blend_cb` in the disp. drv- */
+#define LV_USE_GPU_STM32_DMA2D  0
+/*If enabling LV_USE_GPU_STM32_DMA2D, LV_GPU_DMA2D_CMSIS_INCLUDE must be defined to include path of CMSIS header of target processor
+e.g. "stm32f769xx.h" or "stm32f429xx.h" */
+#define LV_GPU_DMA2D_CMSIS_INCLUDE
+
+/* 1: Enable file system (might be required for images */
+#define LV_USE_FILESYSTEM       0
+#if LV_USE_FILESYSTEM
+/*Declare the type of the user data of file system drivers (can be e.g. `void *`, `int`, `struct`)*/
+typedef void * lv_fs_drv_user_data_t;
+#endif
+
+/*1: Add a `user_data` to drivers and objects*/
+#define LV_USE_USER_DATA        0
+
+/*1: Show CPU usage and FPS count in the right bottom corner*/
+#define LV_USE_PERF_MONITOR     0
+
+/*1: Use the functions and types from the older API if possible */
+#define LV_USE_API_EXTENSION_V6  1
+#define LV_USE_API_EXTENSION_V7  1
+
+/*========================
+ * Image decoder and cache
+ *========================*/
+
+/* 1: Enable indexed (palette) images */
+#define LV_IMG_CF_INDEXED       1
+
+/* 1: Enable alpha indexed images */
+#define LV_IMG_CF_ALPHA         1
+
+/* Default image cache size. Image caching keeps the images opened.
+ * If only the built-in image formats are used there is no real advantage of caching.
+ * (I.e. no new image decoder is added)
+ * With complex image decoders (e.g. PNG or JPG) caching can save the continuous open/decode of images.
+ * However the opened images might consume additional RAM.
+ * LV_IMG_CACHE_DEF_SIZE must be >= 1 */
+#define LV_IMG_CACHE_DEF_SIZE       1
+
+/*Declare the type of the user data of image decoder (can be e.g. `void *`, `int`, `struct`)*/
+typedef void * lv_img_decoder_user_data_t;
+
+/*=====================
+ *  Compiler settings
+ *====================*/
+
+/* For big endian systems set to 1 */
+#define LV_BIG_ENDIAN_SYSTEM    0
+
+/* Define a custom attribute to `lv_tick_inc` function */
+#define LV_ATTRIBUTE_TICK_INC
+
+/* Define a custom attribute to `lv_task_handler` function */
+#define LV_ATTRIBUTE_TASK_HANDLER
+
+/* Define a custom attribute to `lv_disp_flush_ready` function */
+#define LV_ATTRIBUTE_FLUSH_READY
+
+/* Required alignment size for buffers */
+#define LV_ATTRIBUTE_MEM_ALIGN_SIZE
+
+/* With size optimization (-Os) the compiler might not align data to
+ * 4 or 8 byte boundary. This alignment will be explicitly applied where needed.
+ * E.g. __attribute__((aligned(4))) */
+#define LV_ATTRIBUTE_MEM_ALIGN
+
+/* Attribute to mark large constant arrays for example
+ * font's bitmaps */
+#define LV_ATTRIBUTE_LARGE_CONST
+
+/* Prefix performance critical functions to place them into a faster memory (e.g RAM)
+ * Uses 15-20 kB extra memory */
+#define LV_ATTRIBUTE_FAST_MEM
+
+/* Export integer constant to binding.
+ * This macro is used with constants in the form of LV_<CONST> that
+ * should also appear on lvgl binding API such as Micropython
+ *
+ * The default value just prevents a GCC warning.
+ */
+#define LV_EXPORT_CONST_INT(int_value) struct _silence_gcc_warning
+
+/* Prefix variables that are used in GPU accelerated operations, often these need to be
+ * placed in RAM sections that are DMA accessible */
+#define LV_ATTRIBUTE_DMA
+
+/*===================
+ *  HAL settings
+ *==================*/
+
+typedef void * lv_disp_drv_user_data_t;             /*Type of user data in the display driver*/
+typedef void * lv_indev_drv_user_data_t;            /*Type of user data in the input device driver*/
+
+/*================
+ * Log settings
+ *===============*/
+
+/*1: Enable the log module*/
+#define LV_USE_LOG      0
+#if LV_USE_LOG
+/* How important log should be added:
+ * LV_LOG_LEVEL_TRACE       A lot of logs to give detailed information
+ * LV_LOG_LEVEL_INFO        Log important events
+ * LV_LOG_LEVEL_WARN        Log if something unwanted happened but didn't cause a problem
+ * LV_LOG_LEVEL_ERROR       Only critical issue, when the system may fail
+ * LV_LOG_LEVEL_NONE        Do not log anything
+ */
+#define LV_LOG_LEVEL    LV_LOG_LEVEL_WARN
+
+/* 1: Print the log with 'printf';
+ * 0: user need to register a callback with `lv_log_register_print_cb`*/
+#define LV_LOG_PRINTF   0
+#endif  /*LV_USE_LOG*/
+
+/*=================
+ * Debug settings
+ *================*/
+
+/* If Debug is enabled LittelvGL validates the parameters of the functions.
+ * If an invalid parameter is found an error log message is printed and
+ * the MCU halts at the error. (`LV_USE_LOG` should be enabled)
+ * If you are debugging the MCU you can pause
+ * the debugger to see exactly where  the issue is.
+ *
+ * The behavior of asserts can be overwritten by redefining them here.
+ * E.g. #define LV_ASSERT_MEM(p)  <my_assert_code>
+ */
+#define LV_USE_DEBUG        0
+#if LV_USE_DEBUG
+
+/*Check if the parameter is NULL. (Quite fast) */
+#define LV_USE_ASSERT_NULL      1
+
+/*Checks is the memory is successfully allocated or no. (Quite fast)*/
+#define LV_USE_ASSERT_MEM       1
+
+/*Check the integrity of `lv_mem` after critical operations. (Slow)*/
+#define LV_USE_ASSERT_MEM_INTEGRITY       0
+
+/* Check the strings.
+ * Search for NULL, very long strings, invalid characters, and unnatural repetitions. (Slow)
+ * If disabled `LV_USE_ASSERT_NULL` will be performed instead (if it's enabled) */
+#define LV_USE_ASSERT_STR       0
+
+/* Check NULL, the object's type and existence (e.g. not deleted). (Quite slow)
+ * If disabled `LV_USE_ASSERT_NULL` will be performed instead (if it's enabled) */
+#define LV_USE_ASSERT_OBJ       0
+
+/*Check if the styles are properly initialized. (Fast)*/
+#define LV_USE_ASSERT_STYLE     1
+
+#endif /*LV_USE_DEBUG*/
+
+/*==================
+ *    FONT USAGE
+ *===================*/
+
+/* The built-in fonts contains the ASCII range and some Symbols with  4 bit-per-pixel.
+ * The symbols are available via `LV_SYMBOL_...` defines
+ * More info about fonts: https://docs.lvgl.io/v7/en/html/overview/font.html
+ * To create a new font go to: https://lvgl.com/ttf-font-to-c-array
+ */
+
+/* Montserrat fonts with bpp = 4
+ * https://fonts.google.com/specimen/Montserrat  */
+#define LV_FONT_MONTSERRAT_12    1
+#define LV_FONT_MONTSERRAT_14    0
+#define LV_FONT_MONTSERRAT_16    0
+#define LV_FONT_MONTSERRAT_18    0
+#define LV_FONT_MONTSERRAT_20    0
+#define LV_FONT_MONTSERRAT_22    0
+#define LV_FONT_MONTSERRAT_24    0
+#define LV_FONT_MONTSERRAT_26    0
+#define LV_FONT_MONTSERRAT_28    0
+#define LV_FONT_MONTSERRAT_30    0
+#define LV_FONT_MONTSERRAT_32    0
+#define LV_FONT_MONTSERRAT_34    0
+#define LV_FONT_MONTSERRAT_36    0
+#define LV_FONT_MONTSERRAT_38    0
+#define LV_FONT_MONTSERRAT_40    0
+#define LV_FONT_MONTSERRAT_42    0
+#define LV_FONT_MONTSERRAT_44    0
+#define LV_FONT_MONTSERRAT_46    0
+#define LV_FONT_MONTSERRAT_48    0
+
+/* Demonstrate special features */
+#define LV_FONT_MONTSERRAT_12_SUBPX      0
+#define LV_FONT_MONTSERRAT_28_COMPRESSED 0  /*bpp = 3*/
+#define LV_FONT_DEJAVU_16_PERSIAN_HEBREW 0  /*Hebrew, Arabic, PErisan letters and all their forms*/
+#define LV_FONT_SIMSUN_16_CJK            0  /*1000 most common CJK radicals*/
+
+/*Pixel perfect monospace font
+ * http://pelulamu.net/unscii/ */
+#define LV_FONT_UNSCII_8     0
+
+/* Optionally declare your custom fonts here.
+ * You can use these fonts as default font too
+ * and they will be available globally. E.g.
+ * #define LV_FONT_CUSTOM_DECLARE LV_FONT_DECLARE(my_font_1) \
+ *                                LV_FONT_DECLARE(my_font_2)
+ */
+#define LV_FONT_CUSTOM_DECLARE
+
+/* Enable it if you have fonts with a lot of characters.
+ * The limit depends on the font size, font face and bpp
+ * but with > 10,000 characters if you see issues probably you need to enable it.*/
+#define LV_FONT_FMT_TXT_LARGE   0
+
+/* Enables/disables support for compressed fonts. If it's disabled, compressed
+ * glyphs cannot be processed by the library and won't be rendered.
+ */
+#define LV_USE_FONT_COMPRESSED 0
+
+/* Enable subpixel rendering */
+#define LV_USE_FONT_SUBPX 1
+#if LV_USE_FONT_SUBPX
+/* Set the pixel order of the display.
+ * Important only if "subpx fonts" are used.
+ * With "normal" font it doesn't matter.
+ */
+#define LV_FONT_SUBPX_BGR    0
+#endif
+
+/*Declare the type of the user data of fonts (can be e.g. `void *`, `int`, `struct`)*/
+typedef void * lv_font_user_data_t;
+
+/*================
+ *  THEME USAGE
+ *================*/
+/*Always enable at least on theme*/
+
+/* No theme, you can apply your styles as you need
+ * No flags. Set LV_THEME_DEFAULT_FLAG 0 */
+ #define LV_USE_THEME_EMPTY       1
+
+/*Simple to the create your theme based on it
+ * No flags. Set LV_THEME_DEFAULT_FLAG 0 */
+ #define LV_USE_THEME_TEMPLATE    1
+
+/* A fast and impressive theme.
+ * Flags:
+ * LV_THEME_MATERIAL_FLAG_LIGHT: light theme
+ * LV_THEME_MATERIAL_FLAG_DARK: dark theme
+ * LV_THEME_MATERIAL_FLAG_NO_TRANSITION: disable transitions (state change animations)
+ * LV_THEME_MATERIAL_FLAG_NO_FOCUS: disable indication of focused state)
+ * */
+ #define LV_USE_THEME_MATERIAL    1
+
+/* Mono-color theme for monochrome displays.
+ * If LV_THEME_DEFAULT_COLOR_PRIMARY is LV_COLOR_BLACK the
+ * texts and borders will be black and the background will be
+ * white. Else the colors are inverted.
+ * No flags. Set LV_THEME_DEFAULT_FLAG 0 */
+ #define LV_USE_THEME_MONO        1
+
+#define LV_THEME_DEFAULT_INCLUDE            <stdint.h>      /*Include a header for the init. function*/
+#define LV_THEME_DEFAULT_INIT               lv_theme_material_init
+#define LV_THEME_DEFAULT_COLOR_PRIMARY      lv_color_hex(0x01a2b1)
+#define LV_THEME_DEFAULT_COLOR_SECONDARY    lv_color_hex(0x44d1b6)
+#define LV_THEME_DEFAULT_FLAG               LV_THEME_MATERIAL_FLAG_DARK
+#define LV_THEME_DEFAULT_FONT_SMALL         &lv_font_montserrat_12
+#define LV_THEME_DEFAULT_FONT_NORMAL        &lv_font_montserrat_12
+#define LV_THEME_DEFAULT_FONT_SUBTITLE      &lv_font_montserrat_12
+#define LV_THEME_DEFAULT_FONT_TITLE         &lv_font_montserrat_12
+
+/*=================
+ *  Text settings
+ *=================*/
+
+/* Select a character encoding for strings.
+ * Your IDE or editor should have the same character encoding
+ * - LV_TXT_ENC_UTF8
+ * - LV_TXT_ENC_ASCII
+ * */
+#define LV_TXT_ENC LV_TXT_ENC_UTF8
+
+ /*Can break (wrap) texts on these chars*/
+#define LV_TXT_BREAK_CHARS                  " ,.;:-_"
+
+/* If a word is at least this long, will break wherever "prettiest"
+ * To disable, set to a value <= 0 */
+#define LV_TXT_LINE_BREAK_LONG_LEN          0
+
+/* Minimum number of characters in a long word to put on a line before a break.
+ * Depends on LV_TXT_LINE_BREAK_LONG_LEN. */
+#define LV_TXT_LINE_BREAK_LONG_PRE_MIN_LEN  3
+
+/* Minimum number of characters in a long word to put on a line after a break.
+ * Depends on LV_TXT_LINE_BREAK_LONG_LEN. */
+#define LV_TXT_LINE_BREAK_LONG_POST_MIN_LEN 3
+
+/* The control character to use for signalling text recoloring. */
+#define LV_TXT_COLOR_CMD "#"
+
+/* Support bidirectional texts.
+ * Allows mixing Left-to-Right and Right-to-Left texts.
+ * The direction will be processed according to the Unicode Bidirectioanl Algorithm:
+ * https://www.w3.org/International/articles/inline-bidi-markup/uba-basics*/
+#define LV_USE_BIDI     0
+#if LV_USE_BIDI
+/* Set the default direction. Supported values:
+ * `LV_BIDI_DIR_LTR` Left-to-Right
+ * `LV_BIDI_DIR_RTL` Right-to-Left
+ * `LV_BIDI_DIR_AUTO` detect texts base direction */
+#define LV_BIDI_BASE_DIR_DEF  LV_BIDI_DIR_AUTO
+#endif
+
+/* Enable Arabic/Persian processing
+ * In these languages characters should be replaced with
+ * an other form based on their position in the text */
+#define LV_USE_ARABIC_PERSIAN_CHARS 0
+
+/*Change the built in (v)snprintf functions*/
+#define LV_SPRINTF_CUSTOM   0
+#if LV_SPRINTF_CUSTOM
+#define LV_SPRINTF_INCLUDE <stdio.h>
+#define lv_snprintf     snprintf
+#define lv_vsnprintf    vsnprintf
+#else   /*!LV_SPRINTF_CUSTOM*/
+#define LV_SPRINTF_DISABLE_FLOAT 1
+#endif  /*LV_SPRINTF_CUSTOM*/
+
+/*===================
+ *  LV_OBJ SETTINGS
+ *==================*/
+
+#if LV_USE_USER_DATA
+/*Declare the type of the user data of object (can be e.g. `void *`, `int`, `struct`)*/
+typedef void * lv_obj_user_data_t;
+/*Provide a function to free user data*/
+#define LV_USE_USER_DATA_FREE 0
+#if LV_USE_USER_DATA_FREE
+#  define LV_USER_DATA_FREE_INCLUDE  "something.h"  /*Header for user data free function*/
+/* Function prototype : void user_data_free(lv_obj_t * obj); */
+#  define LV_USER_DATA_FREE  (user_data_free)       /*Invoking for user data free function*/
+#endif
+#endif
+
+/*1: enable `lv_obj_realign()` based on `lv_obj_align()` parameters*/
+#define LV_USE_OBJ_REALIGN          1
+
+/* Enable to make the object clickable on a larger area.
+ * LV_EXT_CLICK_AREA_OFF or 0: Disable this feature
+ * LV_EXT_CLICK_AREA_TINY: The extra area can be adjusted horizontally and vertically (0..255 px)
+ * LV_EXT_CLICK_AREA_FULL: The extra area can be adjusted in all 4 directions (-32k..+32k px)
+ */
+#define LV_USE_EXT_CLICK_AREA  LV_EXT_CLICK_AREA_TINY
+
+/*==================
+ *  LV OBJ X USAGE
+ *================*/
+/*
+ * Documentation of the object types: https://docs.lvgl.com/#Object-types
+ */
+
+/*Arc (dependencies: -)*/
+#define LV_USE_ARC      1
+
+/*Bar (dependencies: -)*/
+#define LV_USE_BAR      1
+
+/*Button (dependencies: lv_cont*/
+#define LV_USE_BTN      1
+
+/*Button matrix (dependencies: -)*/
+#define LV_USE_BTNMATRIX     1
+
+/*Calendar (dependencies: -)*/
+#define LV_USE_CALENDAR 1
+#if LV_USE_CALENDAR
+#  define LV_CALENDAR_WEEK_STARTS_MONDAY    0
+#endif
+
+/*Canvas (dependencies: lv_img)*/
+#define LV_USE_CANVAS   1
+
+/*Check box (dependencies: lv_btn, lv_label)*/
+#define LV_USE_CHECKBOX       1
+
+/*Chart (dependencies: -)*/
+#define LV_USE_CHART    1
+#if LV_USE_CHART
+#  define LV_CHART_AXIS_TICK_LABEL_MAX_LEN    256
+#endif
+
+/*Container (dependencies: -*/
+#define LV_USE_CONT     1
+
+/*Color picker (dependencies: -*/
+#define LV_USE_CPICKER   1
+
+/*Drop down list (dependencies: lv_page, lv_label, lv_symbol_def.h)*/
+#define LV_USE_DROPDOWN    1
+#if LV_USE_DROPDOWN != 0
+/*Open and close default animation time [ms] (0: no animation)*/
+#  define LV_DROPDOWN_DEF_ANIM_TIME     200
+#endif
+
+/*Gauge (dependencies:lv_bar, lv_linemeter)*/
+#define LV_USE_GAUGE    1
+
+/*Image (dependencies: lv_label*/
+#define LV_USE_IMG      1
+
+/*Image Button (dependencies: lv_btn*/
+#define LV_USE_IMGBTN   1
+#if LV_USE_IMGBTN
+/*1: The imgbtn requires left, mid and right parts and the width can be set freely*/
+#  define LV_IMGBTN_TILED 0
+#endif
+
+/*Keyboard (dependencies: lv_btnm)*/
+#define LV_USE_KEYBOARD       1
+
+/*Label (dependencies: -*/
+#define LV_USE_LABEL    1
+#if LV_USE_LABEL != 0
+/*Hor, or ver. scroll speed [px/sec] in 'LV_LABEL_LONG_ROLL/ROLL_CIRC' mode*/
+#  define LV_LABEL_DEF_SCROLL_SPEED       25
+
+/* Waiting period at beginning/end of animation cycle */
+#  define LV_LABEL_WAIT_CHAR_COUNT        3
+
+/*Enable selecting text of the label */
+#  define LV_LABEL_TEXT_SEL               0
+
+/*Store extra some info in labels (12 bytes) to speed up drawing of very long texts*/
+#  define LV_LABEL_LONG_TXT_HINT          0
+#endif
+
+/*LED (dependencies: -)*/
+#define LV_USE_LED      1
+#if LV_USE_LED
+#  define LV_LED_BRIGHT_MIN  120      /*Minimal brightness*/
+#  define LV_LED_BRIGHT_MAX  255     /*Maximal brightness*/
+#endif
+
+/*Line (dependencies: -*/
+#define LV_USE_LINE     1
+
+/*List (dependencies: lv_page, lv_btn, lv_label, (lv_img optionally for icons ))*/
+#define LV_USE_LIST     1
+#if LV_USE_LIST != 0
+/*Default animation time of focusing to a list element [ms] (0: no animation)  */
+#  define LV_LIST_DEF_ANIM_TIME  100
+#endif
+
+/*Line meter (dependencies: *;)*/
+#define LV_USE_LINEMETER   1
+#if LV_USE_LINEMETER
+/* Draw line more precisely at cost of performance.
+ * Useful if there are lot of lines any minor are visible
+ * 0: No extra precision
+ * 1: Some extra precision
+ * 2: Best precision
+ */
+#  define LV_LINEMETER_PRECISE    0
+#endif
+
+/*Mask (dependencies: -)*/
+#define LV_USE_OBJMASK  1
+
+/*Message box (dependencies: lv_rect, lv_btnm, lv_label)*/
+#define LV_USE_MSGBOX     1
+
+/*Page (dependencies: lv_cont)*/
+#define LV_USE_PAGE     1
+#if LV_USE_PAGE != 0
+/*Focus default animation time [ms] (0: no animation)*/
+#  define LV_PAGE_DEF_ANIM_TIME     400
+#endif
+
+/*Preload (dependencies: lv_arc, lv_anim)*/
+#define LV_USE_SPINNER      1
+#if LV_USE_SPINNER != 0
+#  define LV_SPINNER_DEF_ARC_LENGTH   60      /*[deg]*/
+#  define LV_SPINNER_DEF_SPIN_TIME    1000    /*[ms]*/
+#  define LV_SPINNER_DEF_ANIM         LV_SPINNER_TYPE_SPINNING_ARC
+#endif
+
+/*Roller (dependencies: lv_ddlist)*/
+#define LV_USE_ROLLER    1
+#if LV_USE_ROLLER != 0
+/*Focus animation time [ms] (0: no animation)*/
+#  define LV_ROLLER_DEF_ANIM_TIME     200
+
+/*Number of extra "pages" when the roller is infinite*/
+#  define LV_ROLLER_INF_PAGES         7
+#endif
+
+/*Slider (dependencies: lv_bar)*/
+#define LV_USE_SLIDER    1
+
+/*Spinbox (dependencies: lv_ta)*/
+#define LV_USE_SPINBOX       1
+
+/*Switch (dependencies: lv_slider)*/
+#define LV_USE_SWITCH       1
+
+/*Text area (dependencies: lv_label, lv_page)*/
+#define LV_USE_TEXTAREA       1
+#if LV_USE_TEXTAREA != 0
+#  define LV_TEXTAREA_DEF_CURSOR_BLINK_TIME 400     /*ms*/
+#  define LV_TEXTAREA_DEF_PWD_SHOW_TIME     1500    /*ms*/
+#endif
+
+/*Table (dependencies: lv_label)*/
+#define LV_USE_TABLE    1
+#if LV_USE_TABLE
+#  define LV_TABLE_COL_MAX    12
+#  define LV_TABLE_CELL_STYLE_CNT 4
+#endif
+
+/*Tab (dependencies: lv_page, lv_btnm)*/
+#define LV_USE_TABVIEW      1
+#if LV_USE_TABVIEW != 0
+/*Time of slide animation [ms] (0: no animation)*/
+#  define LV_TABVIEW_DEF_ANIM_TIME    300
+#endif
+
+/*Tileview (dependencies: lv_page) */
+#define LV_USE_TILEVIEW     1
+#if LV_USE_TILEVIEW
+/*Time of slide animation [ms] (0: no animation)*/
+#  define LV_TILEVIEW_DEF_ANIM_TIME   300
+#endif
+
+/*Window (dependencies: lv_cont, lv_btn, lv_label, lv_img, lv_page)*/
+#define LV_USE_WIN      1
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LV_CONF_H */
+/** @} */

pkg/lvgl7/include/lvgl_riot.h

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2019 Inria
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     pkg_lvgl7
+ * @{
+ *
+ * @file
+ * @brief       Definition for the LittlevGL engine initialization
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ */
+
+#ifndef LVGL_RIOT_H
+#define LVGL_RIOT_H
+
+#include "screen_dev.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @brief   Initialize the lvgl display engine
+ *
+ * @param[in] screen_dev   Pointer to the generic screen device
+ */
+void lvgl_init(screen_dev_t *screen_dev);
+
+/**
+ * @brief   Run the lvgl task handler
+ *
+ * In order to run the lvgl internal task handler in an endless loop, this
+ * function must be called manually either from the main thread or from a
+ * custom thread.
+ * In case of CONFIG_LVGL_INACTIVITY_PERIOD_MS ms of inactivity, the loop stops
+ * the thread running the lvgl task handler until @ref lvgl_wakeup is called.
+ */
+void lvgl_run(void);
+
+/**
+ * @brief   Wakeup lvgl when inactive
+ *
+ * This function unblocks the lvgl task handler thread and will indirectly
+ * trigger an activity. After calling this function, lvgl remains awake during
+ * the next LVGL_INACTIVITY_PERIOD_MS ms.
+ */
+void lvgl_wakeup(void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LVGL_RIOT_H */

pkg/lvgl7/include/lvgl_riot_conf.h

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2021 Inria
+ *
+ * This file is subject to the terms and conditions of the GNU Lesser
+ * General Public License v2.1. See the file LICENSE in the top level
+ * directory for more details.
+ */
+
+/**
+ * @ingroup     pkg_lvgl7
+ * @{
+ *
+ * @file
+ * @brief       Definitions specific to RIOT for the LittlevGL engine
+ *
+ * @author      Alexandre Abadie <alexandre.abadie@inria.fr>
+ */
+
+#ifndef LVGL_RIOT_CONF_H
+#define LVGL_RIOT_CONF_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Type of coordinates. Should be `int16_t` (or `int32_t` for extreme cases) */
+typedef int16_t lv_coord_t;
+
+#define LV_TICK_CUSTOM     1
+#if LV_TICK_CUSTOM == 1
+#define LV_TICK_CUSTOM_INCLUDE  "ztimer.h"       /*Header for the sys time function*/
+#define LV_TICK_CUSTOM_SYS_TIME_EXPR (ztimer_now(ZTIMER_MSEC))     /*Expression evaluating to current systime in ms*/
+#endif   /*LV_TICK_CUSTOM*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LVGL_RIOT_CONF_H */

tests/pkg_lvgl/Makefile

@@ -6,7 +6,12 @@ DISABLE_MODULE += test_utils_interactive_sync
 
 USEPKG += lvgl
 USEMODULE += lvgl_contrib
+USEMODULE += lvgl_extra_widget_chart
+USEMODULE += lvgl_extra_widget_win
+USEMODULE += lvgl_extra_layout_flex
+USEMODULE += lvgl_extra_theme_default
+USEMODULE += lvgl_extra_theme_default_dark
 
-CFLAGS += -DTHREAD_STACKSIZE_MAIN=2048
+CFLAGS += -DTHREAD_STACKSIZE_MAIN=2*1024
 
 include $(RIOTBASE)/Makefile.include

tests/pkg_lvgl/app.config.sample

@@ -1,5 +0,0 @@
-# Sample lvgl configuration
-CONFIG_KCONFIG_USEPKG_LVGL=y
-CONFIG_LV_COLOR_DEPTH_16=y
-CONFIG_LV_COLOR_16_SWAP=y
-CONFIG_LV_MEM_SIZE_KILOBYTES=5

tests/pkg_lvgl/app.config.test

@@ -1,2 +1,22 @@
 CONFIG_PACKAGE_LVGL=y
 CONFIG_MODULE_LVGL_CONTRIB=y
+CONFIG_MODULE_LVGL_EXTRA_WIDGET_CHART=y
+CONFIG_MODULE_LVGL_EXTRA_WIDGET_WIN=y
+CONFIG_MODULE_LVGL_EXTRA_LAYOUT_FLEX=y
+CONFIG_MODULE_LVGL_EXTRA_THEME_DEFAULT=y
+CONFIG_MODULE_LVGL_EXTRA_THEME_DEFAULT_DARK=y
+
+# Uncomment the following Kconfig symbols to configure LVGL using Kconfig. This
+# requires the LVGL package to be already downloaded (e.g. built once already)
+# LVGL specific configuration
+# CONFIG_KCONFIG_USEPKG_LVGL=y
+# CONFIG_LV_FONT_DEFAULT_MONTSERRAT_12=y
+# CONFIG_LV_FONT_UNSCII_8=n
+# CONFIG_LV_MEMCPY_MEMSET_STD=y
+# CONFIG_LV_COLOR_16_SWAP=y
+# # set memory size to 6 when
+# # CONFIG_MODULE_LVGL_EXTRA_THEME_DEFAULT_GROW symbol above is enabled
+# CONFIG_LV_MEM_SIZE_KILOBYTES=5
+# # comment out the following line when
+# # CONFIG_MODULE_LVGL_EXTRA_THEME_DEFAULT_GROW symbol above is enabled
+# CONFIG_LV_THEME_DEFAULT_GROW=n

tests/pkg_lvgl/main.c

@@ -36,14 +36,14 @@ static lv_obj_t *chart;
 static lv_chart_series_t * cpu_ser;
 static lv_chart_series_t *mem_ser;
 static lv_obj_t *info_label;
-static lv_task_t *refr_task;
+static lv_timer_t *refr_task;
 
-static void sysmon_task(lv_task_t *param)
+static void sysmon_task(lv_timer_t *param)
 {
     (void)param;
 
     /* Get CPU and memory information */
-    uint8_t cpu_busy = 100 - lv_task_get_idle();
+    uint8_t cpu_busy = 100 - lv_timer_get_idle();
 
     lv_mem_monitor_t mem_mon;
     lv_mem_monitor(&mem_mon);
@@ -51,16 +51,16 @@ static void sysmon_task(lv_task_t *param)
     uint8_t mem_used_pct = mem_mon.used_pct;
 
     /* Add the CPU and memory data to the chart */
-    lv_chart_set_next(chart, cpu_ser, cpu_busy);
-    lv_chart_set_next(chart, mem_ser, mem_used_pct);
+    lv_chart_set_next_value(chart, cpu_ser, cpu_busy);
+    lv_chart_set_next_value(chart, mem_ser, mem_used_pct);
 
     /* Set the text info */
     lv_label_set_text_fmt(info_label,
                           "%s%s CPU: %d %%%s\n\n"
                           LV_TXT_COLOR_CMD"%s MEMORY: %d %%"LV_TXT_COLOR_CMD"\n"
-                          "Total: %d bytes\n"
-                          "Used: %d bytes\n"
-                          "Free: %d bytes\n"
+                          "Total: %" PRIu32 " bytes\n"
+                          "Used: %" PRIu32 " bytes\n"
+                          "Free: %" PRIu32 " bytes\n"
                           "Frag: %d %%",
                           LV_TXT_COLOR_CMD,
                           CPU_LABEL_COLOR,
@@ -68,9 +68,10 @@ static void sysmon_task(lv_task_t *param)
                           LV_TXT_COLOR_CMD,
                           MEM_LABEL_COLOR,
                           mem_used_pct,
-                          (int)mem_mon.total_size,
-                          (int)mem_mon.total_size - mem_mon.free_size,
-                          mem_mon.free_size, mem_mon.frag_pct);
+                          mem_mon.total_size,
+                          mem_mon.total_size - mem_mon.free_size,
+                          mem_mon.free_size,
+                          mem_mon.frag_pct);
 
     /* Force a wakeup of lvgl when each task is called: this ensures an activity
        is triggered and wakes up lvgl during the next LVGL_INACTIVITY_PERIOD ms */
@@ -82,35 +83,36 @@ void sysmon_create(void)
     lv_coord_t hres = lv_disp_get_hor_res(NULL);
     lv_coord_t vres = lv_disp_get_ver_res(NULL);
 
-    win = lv_win_create(lv_disp_get_scr_act(NULL), NULL);
-    lv_win_set_title(win, "System monitor");
+    win = lv_win_create(lv_scr_act(), 25);
+    lv_win_add_title(win, "System monitor");
+    lv_obj_t * cont = lv_win_get_content(win);
 
     /* Make the window content responsive */
-    lv_win_set_layout(win, LV_LAYOUT_PRETTY_MID);
+    lv_obj_set_layout(cont, LV_LAYOUT_FLEX);
 
     /* Create a chart with two data lines */
-    chart = lv_chart_create(win, NULL);
+    chart = lv_chart_create(cont);
     lv_obj_set_size(chart, hres / 2.5, vres / 2);
-    lv_obj_set_pos(chart, LV_DPI / 10, LV_DPI / 10);
+    lv_obj_set_pos(chart, LV_DPI_DEF / 10, LV_DPI_DEF / 10);
     lv_chart_set_point_count(chart, CHART_POINT_NUM);
-    lv_chart_set_range(chart, 0, 100);
+    lv_chart_set_range(chart, LV_CHART_AXIS_PRIMARY_Y, 0, 100);
     lv_chart_set_type(chart, LV_CHART_TYPE_LINE);
-    cpu_ser = lv_chart_add_series(chart, LV_COLOR_RED);
-    mem_ser = lv_chart_add_series(chart, LV_COLOR_BLUE);
+    cpu_ser = lv_chart_add_series(chart, lv_palette_main(LV_PALETTE_RED), LV_CHART_AXIS_PRIMARY_Y);
+    mem_ser = lv_chart_add_series(chart, lv_palette_main(LV_PALETTE_BLUE), LV_CHART_AXIS_PRIMARY_Y);
 
     /* Set the data series to zero */
     uint16_t i;
     for(i = 0; i < CHART_POINT_NUM; i++) {
-        lv_chart_set_next(chart, cpu_ser, 0);
-        lv_chart_set_next(chart, mem_ser, 0);
+        lv_chart_set_next_value(chart, cpu_ser, 0);
+        lv_chart_set_next_value(chart, mem_ser, 0);
     }
 
     /* Create a label for the details of Memory and CPU usage */
-    info_label = lv_label_create(win, NULL);
+    info_label = lv_label_create(cont);
     lv_label_set_recolor(info_label, true);
 
     /* Create the task used to refresh the chart and label */
-    refr_task = lv_task_create(sysmon_task, REFR_TIME, LV_TASK_PRIO_LOW, NULL);
+    refr_task = lv_timer_create(sysmon_task, REFR_TIME, NULL);
 }
 
 int main(void)

tests/pkg_lvgl_touch/Makefile

@@ -9,5 +9,12 @@ USEMODULE += lvgl_contrib
 
 # Add touch capabilities
 USEMODULE += lvgl_contrib_touch
+USEMODULE += lvgl_widget_btn
+USEMODULE += lvgl_widget_label
+USEMODULE += lvgl_extra_theme_default
+# uncomment the following to enable growing button (needs more RAM)
+# USEMODULE += lvgl_extra_theme_default_grow
+
+CFLAGS += -DTHREAD_STACKSIZE_MAIN=2*1024
 
 include $(RIOTBASE)/Makefile.include

tests/pkg_lvgl_touch/app.config.sample

@@ -1,5 +0,0 @@
-# Sample lvgl configuration
-CONFIG_KCONFIG_USEPKG_LVGL=y
-CONFIG_LV_COLOR_DEPTH_16=y
-CONFIG_LV_COLOR_16_SWAP=y
-CONFIG_LV_MEM_SIZE_KILOBYTES=5

tests/pkg_lvgl_touch/app.config.test

@@ -1,5 +1,25 @@
 CONFIG_PACKAGE_LVGL=y
 CONFIG_MODULE_LVGL_CONTRIB=y
+CONFIG_MODULE_LVGL_WIDGET_BTN=y
+CONFIG_MODULE_LVGL_WIDGET_LABEL=y
+CONFIG_MODULE_LVGL_EXTRA_THEME_DEFAULT=y
+# uncomment the following to enable growing button (needs more RAM)
+#CONFIG_MODULE_LVGL_EXTRA_THEME_DEFAULT_GROW=y
 
 # Add touch capabilities
 CONFIG_MODULE_LVGL_CONTRIB_TOUCH=y
+
+# Uncomment the following Kconfig symbols to configure LVGL using Kconfig. This
+# requires the LVGL package to be already downloaded (e.g. built once already)
+# LVGL specific configuration
+# CONFIG_KCONFIG_USEPKG_LVGL=y
+# CONFIG_LV_FONT_DEFAULT_MONTSERRAT_12=y
+# CONFIG_LV_FONT_UNSCII_8=n
+# CONFIG_LV_MEMCPY_MEMSET_STD=y
+# CONFIG_LV_COLOR_16_SWAP=y
+# # set memory size to 6 when
+# # CONFIG_MODULE_LVGL_EXTRA_THEME_DEFAULT_GROW symbol above is enabled
+# CONFIG_LV_MEM_SIZE_KILOBYTES=5
+# # comment out the following line when
+# # CONFIG_MODULE_LVGL_EXTRA_THEME_DEFAULT_GROW symbol above is enabled
+# CONFIG_LV_THEME_DEFAULT_GROW=n

tests/pkg_lvgl_touch/main.c

@@ -25,10 +25,11 @@
 
 #include "disp_dev.h"
 
-static void btn_event_cb(lv_obj_t * btn, lv_event_t event)
+
+static void btn_event_cb(lv_event_t *event)
 {
-    (void)btn;
-    if (event == LV_EVENT_CLICKED) {
+    lv_event_code_t code = lv_event_get_code(event);
+    if (code == LV_EVENT_CLICKED) {
         puts("Button clicked!");
     }
 }
@@ -39,7 +40,7 @@ int main(void)
     disp_dev_backlight_on();
 
     /* Add a button to the current screen */
-    lv_obj_t * btn = lv_btn_create(lv_scr_act(), NULL);
+    lv_obj_t *btn = lv_btn_create(lv_scr_act());
 
     /* Set the button position and size */
     lv_coord_t x_size = 100;
@@ -50,11 +51,12 @@ int main(void)
     lv_obj_set_size(btn, 100, 50);
 
     /*Assign a callback to the button*/
-    lv_obj_set_event_cb(btn, btn_event_cb);
+    lv_obj_add_event_cb(btn, btn_event_cb, LV_EVENT_ALL, NULL);
 
     /* Add a label to the button */
-    lv_obj_t * label = lv_label_create(btn, NULL);
+    lv_obj_t *label = lv_label_create(btn);
     lv_label_set_text(label, "Click me");
+    lv_obj_center(label);
 
     lvgl_run();