Fix duplicate init

* **Export more symbols:**
  * Expanded standard library support with additional math functions (trigonometric, exponential, and rounding operations), string comparison, directory operations, and locale configuration
  * Added C++ static initialization guard utilities to enhance object initialization support

Buildscripts/module.cmake

@@ -0,0 +1,29 @@
+if (COMMAND tactility_add_module)
+    return()
+endif()
+
+macro(tactility_add_module NAME)
+    set(options)
+    set(oneValueArgs)
+    set(multiValueArgs SRCS INCLUDE_DIRS PRIV_INCLUDE_DIRS REQUIRES PRIV_REQUIRES)
+    cmake_parse_arguments(ARG "${options}" "${oneValueArgs}" "${multiValueArgs}" ${ARGN})
+
+    if (DEFINED ENV{ESP_IDF_VERSION})
+        idf_component_register(
+            SRCS ${ARG_SRCS}
+            INCLUDE_DIRS ${ARG_INCLUDE_DIRS}
+            PRIV_INCLUDE_DIRS ${ARG_PRIV_INCLUDE_DIRS}
+            REQUIRES ${ARG_REQUIRES}
+            PRIV_REQUIRES ${ARG_PRIV_REQUIRES}
+        )
+    else()
+        add_library(${NAME} OBJECT)
+        target_sources(${NAME} PRIVATE ${ARG_SRCS})
+        target_include_directories(${NAME}
+            PRIVATE ${ARG_PRIV_INCLUDE_DIRS}
+            PUBLIC ${ARG_INCLUDE_DIRS}
+        )
+        target_link_libraries(${NAME} PUBLIC ${ARG_REQUIRES})
+        target_link_libraries(${NAME} PRIVATE ${ARG_PRIV_REQUIRES})
+    endif()
+endmacro()

CMakeLists.txt

@@ -12,16 +12,14 @@ set(Cyan "${Esc}[36m")
 file(READ version.txt TACTILITY_VERSION)
 add_compile_definitions(TT_VERSION="${TACTILITY_VERSION}")
 
+# tactility_add_module() macro
+include("Buildscripts/module.cmake")
+
 # Determine device identifier and project location
-if (DEFINED ENV{ESP_IDF_VERSION})
-    include("Buildscripts/device.cmake")
-    init_tactility_globals("sdkconfig")
-    get_property(TACTILITY_DEVICE_PROJECT GLOBAL PROPERTY TACTILITY_DEVICE_PROJECT)
-    get_property(TACTILITY_DEVICE_ID GLOBAL PROPERTY TACTILITY_DEVICE_ID)
-else ()
-    set(TACTILITY_DEVICE_PROJECT "Devices/simulator")
-    set(TACTILITY_DEVICE_ID "simulator")
-endif ()
+include("Buildscripts/device.cmake")
+init_tactility_globals("sdkconfig")
+get_property(TACTILITY_DEVICE_PROJECT GLOBAL PROPERTY TACTILITY_DEVICE_PROJECT)
+get_property(TACTILITY_DEVICE_ID GLOBAL PROPERTY TACTILITY_DEVICE_ID)
 
 if (DEFINED ENV{ESP_IDF_VERSION})
     message("Using ESP-IDF ${Cyan}v$ENV{ESP_IDF_VERSION}${ColorReset}")
@@ -85,7 +83,8 @@ if (NOT DEFINED ENV{ESP_IDF_VERSION})
     add_subdirectory(Libraries/QRCode)
     add_subdirectory(Libraries/minitar)
     add_subdirectory(Libraries/minmea)
-    add_subdirectory(Modules/hal-device)
+    add_subdirectory(Modules/hal-device-module)
+    add_subdirectory(Modules/lvgl-module)
 
     # FreeRTOS
     set(FREERTOS_CONFIG_FILE_DIRECTORY ${PROJECT_SOURCE_DIR}/Devices/simulator/Source CACHE STRING "")

Devices/btt-panda-touch/Source/devices/Display.cpp

@@ -4,7 +4,7 @@
 #include <PwmBacklight.h>
 #include <RgbDisplay.h>
 
-std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable createTouch() {
+std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
     // Note for future changes: Reset pin is 41 and interrupt pin is 40
     auto configuration = std::make_unique<Gt911Touch::Configuration>(
         I2C_NUM_0,

Devices/btt-panda-touch/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "btt-panda-touch",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/cyd-2432s024c/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "cyd-2432s024c",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/cyd-2432s028r/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "cyd-2432s028r",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/cyd-2432s028rv3/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "cyd-2432s028rv3",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/cyd-2432s032c/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "cyd-2432s032c",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/cyd-4848s040c/Source/devices/St7701Display.cpp

@@ -219,7 +219,7 @@ lvgl_port_display_rgb_cfg_t St7701Display::getLvglPortDisplayRgbConfig(esp_lcd_p
     };
 }
 
-std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable St7701Display::getTouchDevice() {
+std::shared_ptr<tt::hal::touch::TouchDevice> St7701Display::getTouchDevice() {
     if (touchDevice == nullptr) {
         auto configuration = std::make_unique<Gt911Touch::Configuration>(
            I2C_NUM_0,

Devices/cyd-4848s040c/Source/devices/St7701Display.h

@@ -7,7 +7,7 @@
 
 class St7701Display final : public EspLcdDisplay {
 
-    std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable touchDevice;
+    std::shared_ptr<tt::hal::touch::TouchDevice> touchDevice;
 
     bool createIoHandle(esp_lcd_panel_io_handle_t& outHandle) override;
 
@@ -27,7 +27,7 @@ public:
 
     std::string getDescription() const override { return "ST7701S RGB display"; }
 
-    std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable getTouchDevice() override;
+    std::shared_ptr<tt::hal::touch::TouchDevice> getTouchDevice() override;
 
     void setBacklightDuty(uint8_t backlightDuty) override;
 

Devices/cyd-4848s040c/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "cyd-4848s040c",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/cyd-8048s043c/Source/devices/Display.cpp

@@ -4,7 +4,7 @@
 #include <PwmBacklight.h>
 #include <RgbDisplay.h>
 
-std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable createTouch() {
+std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
     // Note for future changes: Reset pin is 38 and interrupt pin is 18
     // or INT = NC, schematic and other info floating around is kinda conflicting...
     auto configuration = std::make_unique<Gt911Touch::Configuration>(

Devices/cyd-8048s043c/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "cyd-8048s043c",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/cyd-e32r28t/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "cyd-e32r28t",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/cyd-e32r32p/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "cyd-e32r32p",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/elecrow-crowpanel-advance-28/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "elecrow-crowpanel-advance-28",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/elecrow-crowpanel-advance-35/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "elecrow-crowpanel-advance-35",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/elecrow-crowpanel-advance-50/Source/devices/Display.cpp

@@ -3,7 +3,7 @@
 #include <Gt911Touch.h>
 #include <RgbDisplay.h>
 
-std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable createTouch() {
+std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
     // Note for future changes: Reset pin is 38 and interrupt pin is 18
     // or INT = NC, schematic and other info floating around is kinda conflicting...
     auto configuration = std::make_unique<Gt911Touch::Configuration>(

Devices/elecrow-crowpanel-advance-50/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "elecrow-crowpanel-advance-50",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/elecrow-crowpanel-basic-28/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "elecrow-crowpanel-basic-28",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/elecrow-crowpanel-basic-35/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "elecrow-crowpanel-basic-35",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/elecrow-crowpanel-basic-50/Source/devices/Display.cpp

@@ -4,7 +4,7 @@
 #include <PwmBacklight.h>
 #include <RgbDisplay.h>
 
-std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable createTouch() {
+std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
     // Note for future changes: Reset pin is 38 and interrupt pin is 18
     // or INT = NC, schematic and other info floating around is kinda conflicting...
     auto configuration = std::make_unique<Gt911Touch::Configuration>(

Devices/elecrow-crowpanel-basic-50/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "elecrow-crowpanel-basic-50",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/generic-esp32/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "generic-esp32",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/generic-esp32c6/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "generic-esp32c6",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/generic-esp32p4/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "generic-esp32p4",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/generic-esp32s3/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "generic-esp32s3",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/guition-jc1060p470ciwy/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "guition-jc1060p470ciwy",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/guition-jc2432w328c/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "guition-jc2432w328c",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/guition-jc3248w535c/Source/Axs15231b/Axs15231bDisplay.h

@@ -72,23 +72,23 @@ public:
         uint32_t bufferSize; // Size in pixel count. 0 means default, which is 1/10 of the screen size
         lcd_rgb_element_order_t rgbElementOrder;
         std::shared_ptr<tt::hal::touch::TouchDevice> touch;
-        std::function<void(uint8_t)> _Nullable backlightDutyFunction = nullptr;
+        std::function<void(uint8_t)> backlightDutyFunction = nullptr;
     };
 
 private:
 
-    esp_lcd_panel_io_handle_t _Nullable ioHandle = nullptr;
-    esp_lcd_panel_handle_t _Nullable panelHandle = nullptr;
-    lv_display_t* _Nullable lvglDisplay = nullptr;
-    uint16_t* _Nullable buffer1 = nullptr;
-    uint16_t* _Nullable buffer2 = nullptr;
-    uint16_t* _Nullable tempBuf = nullptr;
-    SemaphoreHandle_t _Nullable teSyncSemaphore = nullptr;
+    esp_lcd_panel_io_handle_t ioHandle = nullptr;
+    esp_lcd_panel_handle_t panelHandle = nullptr;
+    lv_display_t* lvglDisplay = nullptr;
+    uint16_t* buffer1 = nullptr;
+    uint16_t* buffer2 = nullptr;
+    uint16_t* tempBuf = nullptr;
+    SemaphoreHandle_t teSyncSemaphore = nullptr;
     bool teIsrInstalled = false;
     bool isrServiceInstalledByUs = false;
 
     std::unique_ptr<Configuration> configuration;
-    std::shared_ptr<tt::hal::display::DisplayDriver> _Nullable displayDriver;
+    std::shared_ptr<tt::hal::display::DisplayDriver> displayDriver;
 
     bool createIoHandle();
 
@@ -118,9 +118,9 @@ public:
 
     bool stopLvgl() override;
 
-    lv_display_t* _Nullable getLvglDisplay() const override { return lvglDisplay; }
+    lv_display_t* getLvglDisplay() const override { return lvglDisplay; }
 
-    std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable getTouchDevice() override { return configuration->touch; }
+    std::shared_ptr<tt::hal::touch::TouchDevice> getTouchDevice() override { return configuration->touch; }
 
     void setBacklightDuty(uint8_t backlightDuty) override {
         if (configuration->backlightDutyFunction != nullptr) {
@@ -132,7 +132,7 @@ public:
 
     bool supportsDisplayDriver() const override { return true; }
 
-    std::shared_ptr<tt::hal::display::DisplayDriver> _Nullable getDisplayDriver() override;
+    std::shared_ptr<tt::hal::display::DisplayDriver> getDisplayDriver() override;
 
     static void lvgl_port_flush_callback(lv_display_t *drv, const lv_area_t *area, uint8_t *color_map);
 

Devices/guition-jc3248w535c/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "guition-jc3248w535c",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/guition-jc8048w550c/Source/devices/Display.cpp

@@ -4,7 +4,7 @@
 #include <PwmBacklight.h>
 #include <RgbDisplay.h>
 
-std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable createTouch() {
+std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
     // Note for future changes: Reset pin is 38 and interrupt pin is 18
     // or INT = NC, schematic and other info floating around is kinda conflicting...
     auto configuration = std::make_unique<Gt911Touch::Configuration>(

Devices/guition-jc8048w550c/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "guition-jc8048w550c",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/heltec-wifi-lora-32-v3/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "heltec-wifi-lora-32-v3",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/lilygo-tdeck/Source/devices/TdeckKeyboard.h

@@ -5,7 +5,7 @@
 
 class TdeckKeyboard final : public tt::hal::keyboard::KeyboardDevice {
 
-    lv_indev_t* _Nullable deviceHandle = nullptr;
+    lv_indev_t* deviceHandle = nullptr;
 
 public:
 
@@ -15,5 +15,5 @@ public:
     bool startLvgl(lv_display_t* display) override;
     bool stopLvgl() override;
     bool isAttached() const override;
-    lv_indev_t* _Nullable getLvglIndev() override { return deviceHandle; }
+    lv_indev_t* getLvglIndev() override { return deviceHandle; }
 };

Devices/lilygo-tdeck/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "lilygo-tdeck",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/lilygo-tdisplay-s3/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "lilygo-tdisplay-s3",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/lilygo-tdisplay/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "lilygo-tdisplay",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/lilygo-tdongle-s3/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "lilygo-tdongle-s3",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/lilygo-tlora-pager/Source/devices/TpagerEncoder.h

@@ -5,7 +5,7 @@
 
 class TpagerEncoder final : public tt::hal::encoder::EncoderDevice {
 
-    lv_indev_t* _Nullable encHandle = nullptr;
+    lv_indev_t* encHandle = nullptr;
     pcnt_unit_handle_t encPcntUnit = nullptr;
 
     bool initEncoder();
@@ -26,5 +26,5 @@ public:
 
     int getEncoderPulses() const;
 
-    lv_indev_t* _Nullable getLvglIndev() override { return encHandle; }
+    lv_indev_t* getLvglIndev() override { return encHandle; }
 };

Devices/lilygo-tlora-pager/Source/devices/TpagerKeyboard.h

@@ -10,7 +10,7 @@
 
 class TpagerKeyboard final : public tt::hal::keyboard::KeyboardDevice {
 
-    lv_indev_t* _Nullable kbHandle = nullptr;
+    lv_indev_t* kbHandle = nullptr;
     gpio_num_t backlightPin = GPIO_NUM_NC;
     ledc_timer_t backlightTimer;
     ledc_channel_t backlightChannel;
@@ -45,7 +45,7 @@ public:
     bool stopLvgl() override;
 
     bool isAttached() const override;
-    lv_indev_t* _Nullable getLvglIndev() override { return kbHandle; }
+    lv_indev_t* getLvglIndev() override { return kbHandle; }
 
     bool setBacklightDuty(uint8_t duty);
     void makeBacklightImpulse();

Devices/lilygo-tlora-pager/Source/drivers/TloraPager.cpp

@@ -19,10 +19,10 @@ static int stop(Device* device) {
 Driver tlora_pager_driver = {
     .name = "T-Lora Pager",
     .compatible = (const char*[]) { "lilygo,tlora-pager", nullptr },
-    .startDevice = start,
-    .stopDevice = stop,
+    .start_device = start,
+    .stop_device = stop,
     .api = nullptr,
-    .deviceType = nullptr,
+    .device_type = nullptr,
     .owner = &device_module,
     .driver_private = nullptr
 };

Devices/lilygo-tlora-pager/Source/module.cpp

@@ -24,7 +24,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "lilygo-tlora-pager",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/m5stack-cardputer-adv/Source/devices/CardputerKeyboard.h

@@ -9,7 +9,7 @@
 
 class CardputerKeyboard final : public tt::hal::keyboard::KeyboardDevice {
 
-    lv_indev_t* _Nullable kbHandle = nullptr;
+    lv_indev_t* kbHandle = nullptr;
     QueueHandle_t queue = nullptr;
 
     std::shared_ptr<Tca8418> keypad;
@@ -42,5 +42,5 @@ public:
     bool stopLvgl() override;
 
     bool isAttached() const override;
-    lv_indev_t* _Nullable getLvglIndev() override { return kbHandle; }
+    lv_indev_t* getLvglIndev() override { return kbHandle; }
 };

Devices/m5stack-cardputer-adv/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "m5stack-cardputer-adv",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/m5stack-cardputer/Source/devices/CardputerEncoder.h

@@ -13,7 +13,7 @@
 class CardputerEncoder final : public tt::hal::encoder::EncoderDevice {
     KEYBOARD::Keyboard keyboard;
     int lastKeyNum = 0;
-    lv_indev_t* _Nullable lvglDevice = nullptr;
+    lv_indev_t* lvglDevice = nullptr;
 
     static void readCallback(lv_indev_t* indev, lv_indev_data_t* data);
 
@@ -25,5 +25,5 @@ public:
     bool startLvgl(lv_display_t* display) override;
     bool stopLvgl() override;
 
-    lv_indev_t* _Nullable getLvglIndev() override { return lvglDevice; }
+    lv_indev_t* getLvglIndev() override { return lvglDevice; }
 };

Devices/m5stack-cardputer/Source/devices/CardputerKeyboard.h

@@ -8,7 +8,7 @@
 class CardputerKeyboard : public tt::hal::keyboard::KeyboardDevice {
     KEYBOARD::Keyboard keyboard;
     int lastKeyNum = 0;
-    lv_indev_t* _Nullable lvglDevice = nullptr;
+    lv_indev_t* lvglDevice = nullptr;
 
     static void readCallback(lv_indev_t* indev, lv_indev_data_t* data);
 
@@ -22,5 +22,5 @@ public:
 
     bool isAttached() const override { return true; }
 
-    lv_indev_t* _Nullable getLvglIndev() override { return lvglDevice; }
+    lv_indev_t* getLvglIndev() override { return lvglDevice; }
 };

Devices/m5stack-cardputer/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "m5stack-cardputer",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/m5stack-core2/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "m5stack-core2",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/m5stack-cores3/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "m5stack-cores3",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/m5stack-stickc-plus/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "m5stack-stickc-plus",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/m5stack-stickc-plus2/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "m5stack-stickc-plus2",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/m5stack-tab5/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "m5stack-tab5",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/simulator/CMakeLists.txt

@@ -21,7 +21,4 @@ if (NOT DEFINED ENV{ESP_IDF_VERSION})
 
     target_link_libraries(Simulator PRIVATE ${SDL2_LIBRARIES})
 
-    add_definitions(-D_Nullable=)
-    add_definitions(-D_Nonnull=)
-
 endif()

Devices/simulator/Source/LvglTask.cpp

@@ -1,108 +0,0 @@
-#include "LvglTask.h"
-
-#include <Tactility/Logger.h>
-#include <Tactility/RecursiveMutex.h>
-#include <Tactility/Thread.h>
-#include <tactility/check.h>
-#include <Tactility/lvgl/LvglSync.h>
-
-#include <lvgl.h>
-
-static const auto LOGGER = tt::Logger("LvglTask");
-
-// Mutex for LVGL drawing
-static tt::RecursiveMutex lvgl_mutex;
-static tt::RecursiveMutex task_mutex;
-
-static uint32_t task_max_sleep_ms = 10;
-// Mutex for LVGL task state (to modify task_running state)
-static bool task_running = false;
-
-lv_disp_t* displayHandle = nullptr;
-
-static void lvgl_task(void* arg);
-
-static bool task_lock(TickType_t timeout) {
-    return task_mutex.lock(timeout);
-}
-
-static void task_unlock() {
-    task_mutex.unlock();
-}
-
-static void task_set_running(bool running) {
-    assert(task_lock(configTICK_RATE_HZ / 100));
-    task_running = running;
-    task_unlock();
-}
-
-bool lvgl_task_is_running() {
-    assert(task_lock(configTICK_RATE_HZ / 100));
-    bool result = task_running;
-    task_unlock();
-    return result;
-}
-
-static bool lvgl_lock(uint32_t timeoutMillis) {
-    return lvgl_mutex.lock(pdMS_TO_TICKS(timeoutMillis));
-}
-
-static void lvgl_unlock() {
-    lvgl_mutex.unlock();
-}
-
-void lvgl_task_interrupt() {
-    check(task_lock(portMAX_DELAY));
-    task_set_running(false); // interrupt task with boolean as flag
-    task_unlock();
-}
-
-void lvgl_task_start() {
-    LOGGER.info("LVGL task starting");
-
-    tt::lvgl::syncSet(&lvgl_lock, &lvgl_unlock);
-
-    // Create the main app loop, like ESP-IDF
-    BaseType_t task_result = xTaskCreate(
-        lvgl_task,
-        "lvgl",
-        8192,
-        nullptr,
-        static_cast<UBaseType_t>(tt::Thread::Priority::High), // Should be higher than main app task
-        nullptr
-    );
-
-    assert(task_result == pdTRUE);
-}
-
-static void lvgl_task(void* arg) {
-    LOGGER.info("LVGL task started");
-
-    /** Ideally. the display handle would be created during Simulator.start(),
-     * but somehow that doesn't work. Waiting here from a ThreadFlag when that happens
-     * also doesn't work. It seems that it must be called from this task. */
-    displayHandle = lv_sdl_window_create(320, 240);
-    lv_sdl_window_set_title(displayHandle, "Tactility");
-
-    uint32_t task_delay_ms = task_max_sleep_ms;
-
-    task_set_running(true);
-
-    while (lvgl_task_is_running()) {
-        if (lvgl_lock(10)) {
-            task_delay_ms = lv_timer_handler();
-            lvgl_unlock();
-        }
-        if ((task_delay_ms > task_max_sleep_ms) || (1 == task_delay_ms)) {
-            task_delay_ms = task_max_sleep_ms;
-        } else if (task_delay_ms < 1) {
-            task_delay_ms = 1;
-        }
-        vTaskDelay(pdMS_TO_TICKS(task_delay_ms));
-    }
-
-    lv_disp_remove(displayHandle);
-    displayHandle = nullptr;
-    vTaskDelete(nullptr);
-}
-

Devices/simulator/Source/LvglTask.h

@@ -1,5 +0,0 @@
-#pragma once
-
-void lvgl_task_start();
-bool lvgl_task_is_running();
-void lvgl_task_interrupt();

Devices/simulator/Source/Main.cpp

@@ -40,21 +40,3 @@ void freertosMain() {
 }
 
 } // namespace
-
-/**
- * Assert implementation as defined in the FreeRTOSConfig.h
- * It allows you to set breakpoints and debug asserts.
- */
-void vAssertCalled(unsigned long line, const char* const file) {
-    volatile uint32_t set_to_nonzero_in_debugger_to_continue = 0;
-    LOGGER.error("Assert triggered at {}:{}", file, line);
-    taskENTER_CRITICAL();
-    {
-        // Step out by attaching a debugger and setting set_to_nonzero_in_debugger_to_continue
-        while (set_to_nonzero_in_debugger_to_continue == 0) {
-            // NO-OP
-        }
-    }
-    taskEXIT_CRITICAL();
-}
-

Devices/simulator/Source/Simulator.cpp

@@ -1,4 +1,3 @@
-#include "LvglTask.h"
 #include "hal/SdlDisplay.h"
 #include "hal/SdlKeyboard.h"
 #include "hal/SimulatorPower.h"
@@ -11,23 +10,6 @@
 
 using namespace tt::hal;
 
-static bool initBoot() {
-    lv_init();
-    lvgl_task_start();
-    return true;
-}
-
-static void deinitPower() {
-    lvgl_task_interrupt();
-    while (lvgl_task_is_running()) {
-        tt::kernel::delayMillis(10);
-    }
-
-#if LV_ENABLE_GC || !LV_MEM_CUSTOM
-    lv_deinit();
-#endif
-}
-
 static std::vector<std::shared_ptr<tt::hal::Device>> createDevices() {
     return {
         std::make_shared<SdlDisplay>(),
@@ -38,7 +20,7 @@ static std::vector<std::shared_ptr<tt::hal::Device>> createDevices() {
 }
 
 extern const Configuration hardwareConfiguration = {
-    .initBoot = initBoot,
+    .initBoot = nullptr,
     .createDevices = createDevices,
     .uart = {
         uart::Configuration {

Devices/simulator/Source/hal/SdlDisplay.h

@@ -4,26 +4,39 @@
 #include <tactility/check.h>
 #include <Tactility/hal/display/DisplayDevice.h>
 
-/** Hack: variable comes from LvglTask.cpp */
-extern lv_disp_t* displayHandle;
-
 class SdlDisplay final : public tt::hal::display::DisplayDevice {
 
+    lv_disp_t* displayHandle = nullptr;
+
 public:
 
     std::string getName() const override { return "SDL Display"; }
     std::string getDescription() const override { return ""; }
 
     bool start() override { return true; }
-    bool stop() override { check(false, "Not supported"); }
+
+    bool stop() override { return true; }
 
     bool supportsLvgl() const override { return true; }
-    bool startLvgl() override { return displayHandle != nullptr; }
-    bool stopLvgl() override { check(false, "Not supported"); }
-    lv_display_t* _Nullable getLvglDisplay() const override { return displayHandle; }
 
-    std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable getTouchDevice() override { return std::make_shared<SdlTouch>(); }
+    bool startLvgl() override {
+        if (displayHandle) return true; // already started
+        displayHandle = lv_sdl_window_create(320, 240);
+        lv_sdl_window_set_title(displayHandle, "Tactility");
+        return displayHandle != nullptr;
+    }
+
+    bool stopLvgl() override {
+        if (!displayHandle) return true;
+        lv_display_delete(displayHandle);
+        displayHandle = nullptr;
+        return true;
+    }
+
+    lv_display_t* getLvglDisplay() const override { return displayHandle; }
+
+    std::shared_ptr<tt::hal::touch::TouchDevice> getTouchDevice() override { return std::make_shared<SdlTouch>(); }
 
     bool supportsDisplayDriver() const override { return false; }
-    std::shared_ptr<tt::hal::display::DisplayDriver> _Nullable getDisplayDriver() override { return nullptr; }
+    std::shared_ptr<tt::hal::display::DisplayDriver> getDisplayDriver() override { return nullptr; }
 };

Devices/simulator/Source/hal/SdlKeyboard.h

@@ -6,7 +6,7 @@
 
 class SdlKeyboard final : public tt::hal::keyboard::KeyboardDevice {
 
-    lv_indev_t* _Nullable handle = nullptr;
+    lv_indev_t* handle = nullptr;
 
 public:
 
@@ -22,5 +22,5 @@ public:
 
     bool isAttached() const override { return true; }
 
-    lv_indev_t* _Nullable getLvglIndev() override { return handle; }
+    lv_indev_t* getLvglIndev() override { return handle; }
 };

Devices/simulator/Source/hal/SdlTouch.h

@@ -6,7 +6,7 @@
 
 class SdlTouch final : public tt::hal::touch::TouchDevice {
 
-    lv_indev_t* _Nullable handle = nullptr;
+    lv_indev_t* handle = nullptr;
 
 public:
 
@@ -27,10 +27,10 @@ public:
 
     bool stopLvgl() override { check(false, "Not supported"); }
 
-    lv_indev_t* _Nullable getLvglIndev() override { return handle; }
+    lv_indev_t* getLvglIndev() override { return handle; }
 
     bool supportsTouchDriver() override { return false; }
 
-    std::shared_ptr<tt::hal::touch::TouchDriver> _Nullable getTouchDriver() override { return nullptr; };
+    std::shared_ptr<tt::hal::touch::TouchDriver> getTouchDriver() override { return nullptr; };
 };
 

Devices/simulator/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "simulator",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/unphone/Source/devices/Hx8357Display.cpp

@@ -99,7 +99,7 @@ bool Hx8357Display::stopLvgl() {
     return true;
 }
 
-std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable Hx8357Display::getTouchDevice() {
+std::shared_ptr<tt::hal::touch::TouchDevice> Hx8357Display::getTouchDevice() {
     if (touchDevice == nullptr) {
         touchDevice = std::reinterpret_pointer_cast<tt::hal::touch::TouchDevice>(createTouch());
         LOGGER.info("Created touch device");

Devices/unphone/Source/devices/Hx8357Display.h

@@ -21,10 +21,10 @@
 
 class Hx8357Display : public tt::hal::display::DisplayDevice {
 
-    uint8_t* _Nullable buffer = nullptr;
-    lv_display_t* _Nullable lvglDisplay = nullptr;
-    std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable touchDevice;
-    std::shared_ptr<tt::hal::display::DisplayDriver> _Nullable nativeDisplay;
+    uint8_t* buffer = nullptr;
+    lv_display_t* lvglDisplay = nullptr;
+    std::shared_ptr<tt::hal::touch::TouchDevice> touchDevice;
+    std::shared_ptr<tt::hal::display::DisplayDriver> nativeDisplay;
 
     class Hx8357Driver : public tt::hal::display::DisplayDriver {
         std::shared_ptr<tt::Lock> lock = tt::hal::spi::getLock(SPI2_HOST);
@@ -51,14 +51,14 @@ public:
 
     bool stopLvgl() override;
 
-    std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable getTouchDevice() override;
+    std::shared_ptr<tt::hal::touch::TouchDevice> getTouchDevice() override;
 
-    lv_display_t* _Nullable getLvglDisplay() const override { return lvglDisplay; }
+    lv_display_t* getLvglDisplay() const override { return lvglDisplay; }
 
     // TODO: Set to true after fixing UnPhoneDisplayDriver
     bool supportsDisplayDriver() const override { return false; }
 
-    std::shared_ptr<tt::hal::display::DisplayDriver> _Nullable getDisplayDriver() override {
+    std::shared_ptr<tt::hal::display::DisplayDriver> getDisplayDriver() override {
         if (nativeDisplay == nullptr) {
             nativeDisplay = std::make_shared<Hx8357Driver>();
         }

Devices/unphone/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "unphone",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/waveshare-esp32-s3-geek/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "waveshare-esp32-s3-geek",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/waveshare-s3-lcd-13/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "waveshare-s3-lcd-13",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/waveshare-s3-touch-lcd-128/Source/devices/Display.cpp

@@ -4,7 +4,7 @@
 #include <PwmBacklight.h>
 #include <Gc9a01Display.h>
 
-std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable createTouch() {
+std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
     auto configuration = std::make_unique<Cst816sTouch::Configuration>(
         I2C_NUM_0,
         240,

Devices/waveshare-s3-touch-lcd-128/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "waveshare-s3-touch-lcd-128",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/waveshare-s3-touch-lcd-147/Source/devices/Jd9853Display.h

@@ -67,7 +67,7 @@ public:
         uint32_t bufferSize; // Size in pixel count. 0 means default, which is 1/10 of the screen size
         lcd_rgb_element_order_t rgbElementOrder;
         std::shared_ptr<tt::hal::touch::TouchDevice> touch;
-        std::function<void(uint8_t)> _Nullable backlightDutyFunction = nullptr;
+        std::function<void(uint8_t)> backlightDutyFunction = nullptr;
     };
 
 private:
@@ -93,7 +93,7 @@ public:
 
     std::string getDescription() const override { return "JD9853 display"; }
 
-    std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable getTouchDevice() override { return configuration->touch; }
+    std::shared_ptr<tt::hal::touch::TouchDevice> getTouchDevice() override { return configuration->touch; }
 
     void setBacklightDuty(uint8_t backlightDuty) override {
         if (configuration->backlightDutyFunction != nullptr) {

Devices/waveshare-s3-touch-lcd-147/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "waveshare-s3-touch-lcd-147",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/waveshare-s3-touch-lcd-43/Source/devices/Display.cpp

@@ -3,7 +3,7 @@
 #include <Gt911Touch.h>
 #include <RgbDisplay.h>
 
-std::shared_ptr<tt::hal::touch::TouchDevice> _Nullable createTouch() {
+std::shared_ptr<tt::hal::touch::TouchDevice> createTouch() {
     // Note for future changes: Reset pin is 38 and interrupt pin is 18
     // or INT = NC, schematic and other info floating around is kinda conflicting...
     auto configuration = std::make_unique<Gt911Touch::Configuration>(

Devices/waveshare-s3-touch-lcd-43/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "waveshare-s3-touch-lcd-43",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Devices/wireless-tag-wt32-sc01-plus/Source/module.cpp

@@ -16,7 +16,8 @@ static error_t stop() {
 struct Module device_module = {
     .name = "wireless-tag-wt32-sc01-plus",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Drivers/ButtonControl/Source/ButtonControl.h

@@ -37,7 +37,7 @@ private:
         bool triggerLongPress = false;
     };
 
-    lv_indev_t* _Nullable deviceHandle = nullptr;
+    lv_indev_t* deviceHandle = nullptr;
     std::shared_ptr<tt::Thread> driverThread;
     bool interruptDriverThread = false;
     tt::Mutex mutex;
@@ -67,7 +67,8 @@ public:
     bool startLvgl(lv_display_t* display) override;
     bool stopLvgl() override;
 
-    lv_indev_t* _Nullable getLvglIndev() override { return deviceHandle; }
+    /** Could return nullptr if not started */
+    lv_indev_t* getLvglIndev() override { return deviceHandle; }
 
     static std::shared_ptr<ButtonControl> createOneButtonControl(tt::hal::gpio::Pin pin) {
         return std::make_shared<ButtonControl>(std::vector {

Drivers/CST816S/Source/Cst816Touch.h

@@ -49,7 +49,7 @@ private:
     std::unique_ptr<Configuration> configuration;
     esp_lcd_panel_io_handle_t ioHandle = nullptr;
     esp_lcd_touch_handle_t touchHandle = nullptr;
-    lv_indev_t* _Nullable deviceHandle = nullptr;
+    lv_indev_t* deviceHandle = nullptr;
 
     void cleanup();
 

Drivers/EspLcdCompat/Source/EspLcdDisplay.h

@@ -10,10 +10,10 @@
 /** @deprecated use EspLcdDisplayV2 */
 class EspLcdDisplay : public tt::hal::display::DisplayDevice {
 
-    esp_lcd_panel_io_handle_t _Nullable ioHandle = nullptr;
-    esp_lcd_panel_handle_t _Nullable panelHandle = nullptr;
-    lv_display_t* _Nullable lvglDisplay = nullptr;
-    std::shared_ptr<tt::hal::display::DisplayDriver> _Nullable displayDriver;
+    esp_lcd_panel_io_handle_t ioHandle = nullptr;
+    esp_lcd_panel_handle_t panelHandle = nullptr;
+    lv_display_t* lvglDisplay = nullptr;
+    std::shared_ptr<tt::hal::display::DisplayDriver> displayDriver;
     std::shared_ptr<tt::Lock> lock;
     lcd_rgb_element_order_t rgbElementOrder;
 
@@ -52,7 +52,7 @@ public:
 
     bool stopLvgl() final;
 
-    lv_display_t* _Nullable getLvglDisplay() const final { return lvglDisplay; }
+    lv_display_t* getLvglDisplay() const final { return lvglDisplay; }
 
     // endregion
 
@@ -61,7 +61,7 @@ public:
     bool supportsDisplayDriver() const override { return true; }
 
     /** @return a NativeDisplay instance if this device supports it */
-    std::shared_ptr<tt::hal::display::DisplayDriver> _Nullable getDisplayDriver() final;
+    std::shared_ptr<tt::hal::display::DisplayDriver> getDisplayDriver() final;
 
     // endregion
 };

Drivers/EspLcdCompat/Source/EspLcdTouch.h

@@ -11,7 +11,7 @@ class EspLcdTouch : public tt::hal::touch::TouchDevice {
     esp_lcd_touch_config_t config;
     esp_lcd_panel_io_handle_t _Nullable ioHandle = nullptr;
     esp_lcd_touch_handle_t _Nullable touchHandle = nullptr;
-    lv_indev_t* _Nullable lvglDevice = nullptr;
+    lv_indev_t* lvglDevice = nullptr;
     std::shared_ptr<tt::hal::touch::TouchDriver> touchDriver;
 
 protected:
@@ -36,7 +36,7 @@ public:
 
     bool stopLvgl() final;
 
-    lv_indev_t* _Nullable getLvglIndev() final { return lvglDevice; }
+    lv_indev_t* getLvglIndev() final { return lvglDevice; }
 
     bool supportsTouchDriver() override { return true; }
 

Drivers/FT6x36/Source/Ft6x36Touch.h

@@ -34,7 +34,7 @@ public:
 private:
 
     std::unique_ptr<Configuration> configuration;
-    lv_indev_t* _Nullable deviceHandle = nullptr;
+    lv_indev_t* deviceHandle = nullptr;
     FT6X36 driver = FT6X36(configuration->port, configuration->pinInterrupt);
     std::shared_ptr<tt::Thread> driverThread;
     bool interruptDriverThread = false;
@@ -65,7 +65,7 @@ public:
     bool startLvgl(lv_display_t* display) override;
     bool stopLvgl() override;
 
-    lv_indev_t* _Nullable getLvglIndev() override { return deviceHandle; }
+    lv_indev_t* getLvglIndev() override { return deviceHandle; }
 
     class Ft6TouchDriver : public tt::hal::touch::TouchDriver {
     public:

Drivers/ILI934x/Source/Ili934xDisplay.h

@@ -25,7 +25,7 @@ public:
         bool swapBytes;
         uint32_t bufferSize; // Pixel count, not byte count. Set to 0 for default (1/10th of display size)
         std::shared_ptr<tt::hal::touch::TouchDevice> touch;
-        std::function<void(uint8_t)> _Nullable backlightDutyFunction;
+        std::function<void(uint8_t)> backlightDutyFunction; // Nullable
         gpio_num_t resetPin;
         lcd_rgb_element_order_t rgbElementOrder;
     };

Firmware/CMakeLists.txt

@@ -36,14 +36,13 @@ else ()
         TactilityCore
         TactilityFreeRtos
         TactilityKernel
-        hal-device
+        hal-device-module
+        lvgl-module
         Simulator
         PlatformPosix
         SDL2::SDL2-static SDL2-static
     )
 
-    add_definitions(-D_Nullable=)
-    add_definitions(-D_Nonnull=)
 endif ()
 
 add_custom_target(AlwaysRun

Modules/hal-device-module/CMakeLists.txt

@@ -0,0 +1,21 @@
+cmake_minimum_required(VERSION 3.20)
+
+include("${CMAKE_CURRENT_LIST_DIR}/../../Buildscripts/module.cmake")
+
+file(GLOB_RECURSE SOURCE_FILES "Source/*.c*")
+
+list(APPEND REQUIRES_LIST
+    TactilityKernel
+    TactilityCore
+    TactilityFreeRtos
+)
+
+if (NOT DEFINED ENV{ESP_IDF_VERSION})
+    list(APPEND REQUIRES_LIST freertos_kernel)
+endif ()
+
+tactility_add_module(hal-device-module
+    SRCS ${SOURCE_FILES}
+    INCLUDE_DIRS Include/
+    REQUIRES ${REQUIRES_LIST}
+)

Modules/hal-device-module/Include/tactility/hal/Device.h

@@ -79,17 +79,17 @@ void registerDevice(const std::shared_ptr<Device>& device);
 /** Remove a device from the registry. */
 void deregisterDevice(const std::shared_ptr<Device>& device);
 
-/** Find a single device with a custom filter */
-std::shared_ptr<Device> _Nullable findDevice(const std::function<bool(const std::shared_ptr<Device>&)>& filterFunction);
+/** Find a single device with a custom filter. Could return nullptr if not found. */
+std::shared_ptr<Device> findDevice(const std::function<bool(const std::shared_ptr<Device>&)>& filterFunction);
 
 /** Find devices with a custom filter */
 std::vector<std::shared_ptr<Device>> findDevices(const std::function<bool(const std::shared_ptr<Device>&)>& filterFunction);
 
-/** Find a device in the registry by its name. */
-std::shared_ptr<Device> _Nullable findDevice(std::string name);
+/** Find a device in the registry by its name. Could return nullptr if not found. */
+std::shared_ptr<Device> findDevice(std::string name);
 
-/** Find a device in the registry by its identifier. */
-std::shared_ptr<Device> _Nullable findDevice(Device::Id id);
+/** Find a device in the registry by its identifier. Could return nullptr if not found.*/
+std::shared_ptr<Device> findDevice(Device::Id id);
 
 /** Find 0, 1 or more devices in the registry by type. */
 std::vector<std::shared_ptr<Device>> findDevices(Device::Type type);

Modules/hal-device-module/Source/drivers/hal_device.cpp

@@ -8,7 +8,7 @@
 #include <memory>
 #include <utility>
 
-#define TAG LOG_TAG(HalDevice)
+#define TAG "HalDevice"
 
 struct HalDevicePrivate {
     std::shared_ptr<tt::hal::Device> halDevice;
@@ -115,10 +115,10 @@ extern struct Module hal_device_module;
 Driver hal_device_driver = {
     .name = "hal-device",
     .compatible = (const char*[]) {"hal-device", nullptr},
-    .startDevice = start,
-    .stopDevice = stop,
+    .start_device = start,
+    .stop_device = stop,
     .api = nullptr,
-    .deviceType = &HAL_DEVICE_TYPE,
+    .device_type = &HAL_DEVICE_TYPE,
     .owner = &hal_device_module,
     .driver_private = nullptr
 };

Modules/hal-device-module/Source/hal/Device.cpp

@@ -88,7 +88,7 @@ std::vector<std::shared_ptr<Device>> findDevices(const std::function<bool(const
     return toVector(devices_view);
 }
 
-std::shared_ptr<Device> _Nullable findDevice(const std::function<bool(const std::shared_ptr<Device>&)>& filterFunction) {
+std::shared_ptr<Device> findDevice(const std::function<bool(const std::shared_ptr<Device>&)>& filterFunction) {
     auto scoped_mutex = mutex.asScopedLock();
     scoped_mutex.lock();
 
@@ -102,13 +102,13 @@ std::shared_ptr<Device> _Nullable findDevice(const std::function<bool(const std:
     }
 }
 
-std::shared_ptr<Device> _Nullable findDevice(std::string name) {
+std::shared_ptr<Device> findDevice(std::string name) {
     return findDevice([&name](auto& device){
         return device->getName() == name;
     });
 }
 
-std::shared_ptr<Device> _Nullable findDevice(Device::Id id) {
+std::shared_ptr<Device> findDevice(Device::Id id) {
     return findDevice([id](auto& device){
       return device->getId() == id;
     });

Modules/hal-device-module/Source/module.cpp

@@ -17,15 +17,15 @@ static error_t start() {
 static error_t stop() {
     /* We crash when destruct fails, because if a single driver fails to destruct,
      * there is no guarantee that the previously destroyed drivers can be recovered */
-    check(driver_remove(&hal_device_driver) == ERROR_NONE);
-    check(driver_destruct(&hal_device_driver) == ERROR_NONE);
+    check(driver_remove_destruct(&hal_device_driver) == ERROR_NONE);
     return ERROR_NONE;
 }
 
 struct Module hal_device_module = {
     .name = "hal-device",
     .start = start,
-    .stop = stop
+    .stop = stop,
+    .symbols = nullptr
 };
 
 }

Modules/hal-device/CMakeLists.txt

@@ -1,46 +0,0 @@
-cmake_minimum_required(VERSION 3.20)
-
-if (DEFINED ENV{ESP_IDF_VERSION})
-    file(GLOB_RECURSE SOURCE_FILES Source/*.c*)
-
-    list(APPEND REQUIRES_LIST
-        TactilityKernel
-        TactilityCore
-        TactilityFreeRtos
-    )
-
-    idf_component_register(
-        SRCS ${SOURCE_FILES}
-        INCLUDE_DIRS "Include/"
-        REQUIRES ${REQUIRES_LIST}
-    )
-
-    if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-        target_compile_options(${COMPONENT_LIB} PUBLIC -Wno-unused-variable)
-    endif ()
-
-else ()
-
-    file(GLOB_RECURSE SOURCES "Source/*.c*")
-
-    add_library(hal-device OBJECT)
-
-    target_sources(hal-device PRIVATE ${SOURCES})
-
-    target_include_directories(hal-device
-        PRIVATE Private/
-        PUBLIC Include/
-    )
-
-    add_definitions(-D_Nullable=)
-    add_definitions(-D_Nonnull=)
-
-    target_link_libraries(hal-device PUBLIC
-        TactilityFreeRtos
-        TactilityCore
-        TactilityKernel
-        freertos_kernel
-    )
-    
-endif ()
-

Modules/lvgl-module/CMakeLists.txt

@@ -0,0 +1,22 @@
+cmake_minimum_required(VERSION 3.20)
+
+file(GLOB_RECURSE SOURCE_FILES "Source/*.c*")
+
+list(APPEND REQUIRES_LIST
+    TactilityKernel
+    lvgl
+)
+
+if (DEFINED ENV{ESP_IDF_VERSION})
+    list(APPEND REQUIRES_LIST esp_lvgl_port)
+else ()
+    list(APPEND REQUIRES_LIST freertos_kernel)
+endif ()
+
+include("${CMAKE_CURRENT_LIST_DIR}/../../Buildscripts/module.cmake")
+
+tactility_add_module(lvgl-module
+    SRCS ${SOURCE_FILES}
+    INCLUDE_DIRS Include/
+    REQUIRES ${REQUIRES_LIST}
+)

Modules/lvgl-module/Include/tactility/lvgl_module.h

@@ -0,0 +1,91 @@
+// SPDX-License-Identifier: Apache-2.0
+#pragma once
+
+/**
+ * @file lvgl_module.h
+ * @brief LVGL module for Tactility.
+ *
+ * This module manages the lifecycle of the LVGL library, including initialization,
+ * task management, and thread-safety.
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stdbool.h>
+
+/**
+ * @brief The LVGL module instance.
+ */
+extern struct Module lvgl_module;
+
+/**
+ * @brief Configuration for the LVGL module.
+ */
+struct LvglModuleConfig {
+    /**
+     * @brief Callback invoked when the LVGL task starts.
+     * Use this to add devices (e.g. displays, pointers), start services, create widgets, etc.
+     */
+    void (*on_start)(void);
+
+    /**
+     * @brief Callback invoked when the LVGL task stops.
+     * Use this to remove devices, stop services, etc.
+     */
+    void (*on_stop)(void);
+
+    /** @brief Priority of the LVGL task. */
+    int task_priority;
+
+    /** @brief Stack size of the LVGL task in bytes. */
+    int task_stack_size;
+
+#ifdef ESP_PLATFORM
+    /** @brief CPU affinity of the LVGL task (ESP32 specific). */
+    int task_affinity;
+#endif
+};
+
+/**
+ * @brief Configures the LVGL module.
+ *
+ * @warning This must be called before starting the module.
+ * @param config The configuration to apply.
+ */
+void lvgl_module_configure(struct LvglModuleConfig config);
+
+/**
+ * @brief Locks the LVGL mutex.
+ *
+ * This should be called before any LVGL API calls from threads other than the LVGL task.
+ * It is a recursive mutex.
+ * @retval true when a lock was acquired, false otherwise
+ */
+bool lvgl_lock(void);
+
+/**
+ * @brief Tries to lock the LVGL mutex with a timeout.
+ *
+ * @param timeout Timeout in ticks
+ * @return true if the lock was acquired, false otherwise.
+ */
+bool lvgl_try_lock_timed(uint32_t timeout);
+
+/**
+ * @brief Unlocks the LVGL mutex.
+ */
+void lvgl_unlock(void);
+
+/**
+ * @brief Checks if the LVGL module is currently running.
+ *
+ * @return true if running, false otherwise.
+ */
+bool lvgl_is_running();
+
+#ifdef __cplusplus
+}
+#endif

Modules/lvgl-module/LICENSE-GPL-3.0.md

@@ -0,0 +1,675 @@
+# GNU GENERAL PUBLIC LICENSE
+
+Version 3, 29 June 2007
+
+Copyright (C) 2007 Free Software Foundation, Inc.
+<https://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this
+license document, but changing it is not allowed.
+
+## Preamble
+
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+software and other kinds of works.
+
+The licenses for most software and other practical works are designed
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+the GNU General Public License for most of our software; it applies
+also to any other work released this way by its authors. You can apply
+it to your programs, too.
+
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+hereafter acquired, that would be infringed by some manner, permitted
+by this License, of making, using, or selling its contributor version,
+but do not include claims that would be infringed only as a
+consequence of further modification of the contributor version. For
+purposes of this definition, "control" includes the right to grant
+patent sublicenses in a manner consistent with the requirements of
+this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free
+patent license under the contributor's essential patent claims, to
+make, use, sell, offer for sale, import and otherwise run, modify and
+propagate the contents of its contributor version.
+
+In the following three paragraphs, a "patent license" is any express
+agreement or commitment, however denominated, not to enforce a patent
+(such as an express permission to practice a patent or covenant not to
+sue for patent infringement). To "grant" such a patent license to a
+party means to make such an agreement or commitment not to enforce a
+patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license,
+and the Corresponding Source of the work is not available for anyone
+to copy, free of charge and under the terms of this License, through a
+publicly available network server or other readily accessible means,
+then you must either (1) cause the Corresponding Source to be so
+available, or (2) arrange to deprive yourself of the benefit of the
+patent license for this particular work, or (3) arrange, in a manner
+consistent with the requirements of this License, to extend the patent
+license to downstream recipients. "Knowingly relying" means you have
+actual knowledge that, but for the patent license, your conveying the
+covered work in a country, or your recipient's use of the covered work
+in a country, would infringe one or more identifiable patents in that
+country that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or
+arrangement, you convey, or propagate by procuring conveyance of, a
+covered work, and grant a patent license to some of the parties
+receiving the covered work authorizing them to use, propagate, modify
+or convey a specific copy of the covered work, then the patent license
+you grant is automatically extended to all recipients of the covered
+work and works based on it.
+
+A patent license is "discriminatory" if it does not include within the
+scope of its coverage, prohibits the exercise of, or is conditioned on
+the non-exercise of one or more of the rights that are specifically
+granted under this License. You may not convey a covered work if you
+are a party to an arrangement with a third party that is in the
+business of distributing software, under which you make payment to the
+third party based on the extent of your activity of conveying the
+work, and under which the third party grants, to any of the parties
+who would receive the covered work from you, a discriminatory patent
+license (a) in connection with copies of the covered work conveyed by
+you (or copies made from those copies), or (b) primarily for and in
+connection with specific products or compilations that contain the
+covered work, unless you entered into that arrangement, or that patent
+license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting
+any implied license or other defenses to infringement that may
+otherwise be available to you under applicable patent law.
+
+### 12. No Surrender of Others' Freedom.
+
+If conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot convey a
+covered work so as to satisfy simultaneously your obligations under
+this License and any other pertinent obligations, then as a
+consequence you may not convey it at all. For example, if you agree to
+terms that obligate you to collect a royalty for further conveying
+from those to whom you convey the Program, the only way you could
+satisfy both those terms and this License would be to refrain entirely
+from conveying the Program.
+
+### 13. Use with the GNU Affero General Public License.
+
+Notwithstanding any other provision of this License, you have
+permission to link or combine any covered work with a work licensed
+under version 3 of the GNU Affero General Public License into a single
+combined work, and to convey the resulting work. The terms of this
+License will continue to apply to the part which is the covered work,
+but the special requirements of the GNU Affero General Public License,
+section 13, concerning interaction through a network will apply to the
+combination as such.
+
+### 14. Revised Versions of this License.
+
+The Free Software Foundation may publish revised and/or new versions
+of the GNU General Public License from time to time. Such new versions
+will be similar in spirit to the present version, but may differ in
+detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies that a certain numbered version of the GNU General Public
+License "or any later version" applies to it, you have the option of
+following the terms and conditions either of that numbered version or
+of any later version published by the Free Software Foundation. If the
+Program does not specify a version number of the GNU General Public
+License, you may choose any version ever published by the Free
+Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions
+of the GNU General Public License can be used, that proxy's public
+statement of acceptance of a version permanently authorizes you to
+choose that version for the Program.
+
+Later license versions may give you additional or different
+permissions. However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+### 15. Disclaimer of Warranty.
+
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT
+WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT
+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND
+PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE
+DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR
+CORRECTION.
+
+### 16. Limitation of Liability.
+
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR
+CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
+ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT
+NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR
+LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM
+TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER
+PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+### 17. Interpretation of Sections 15 and 16.
+
+If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+## How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these
+terms.
+
+To do so, attach the following notices to the program. It is safest to
+attach them to the start of each source file to most effectively state
+the exclusion of warranty; and each file should have at least the
+"copyright" line and a pointer to where the full notice is found.
+
+        <one line to give the program's name and a brief idea of what it does.>
+        Copyright (C) <year>  <name of author>
+
+        This program is free software: you can redistribute it and/or modify
+        it under the terms of the GNU General Public License as published by
+        the Free Software Foundation, either version 3 of the License, or
+        (at your option) any later version.
+
+        This program is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+        GNU General Public License for more details.
+
+        You should have received a copy of the GNU General Public License
+        along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper
+mail.
+
+If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+        <program>  Copyright (C) <year>  <name of author>
+        This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+        This is free software, and you are welcome to redistribute it
+        under certain conditions; type `show c' for details.
+
+The hypothetical commands \`show w' and \`show c' should show the
+appropriate parts of the General Public License. Of course, your
+program's commands might be different; for a GUI interface, you would
+use an "about box".
+
+You should also get your employer (if you work as a programmer) or
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. For more information on this, and how to apply and follow
+the GNU GPL, see <https://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your
+program into proprietary programs. If your program is a subroutine
+library, you may consider it more useful to permit linking proprietary
+applications with the library. If this is what you want to do, use the
+GNU Lesser General Public License instead of this License. But first,
+please read <https://www.gnu.org/licenses/why-not-lgpl.html>.

Modules/lvgl-module/README.md

@@ -0,0 +1,8 @@
+**WARNING: This module contains deprecated code**
+
+This module is the basis for the old Tactility HAL.
+This HAL existed before TactilityKernel.
+
+The C++ `tt::hal::Device` class is replaced by `struct Device` from TactilityKernel.
+
+License: Apache v2.0

Modules/lvgl-module/Source/arch/lvgl_esp32.c

@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-3.0-only
+#ifdef ESP_PLATFORM
+
+#include <esp_lvgl_port.h>
+
+#include <tactility/time.h>
+#include <tactility/error.h>
+#include <tactility/lvgl_module.h>
+
+extern struct LvglModuleConfig lvgl_module_config;
+
+static bool initialized = false;
+
+bool lvgl_lock(void) {
+    if (!initialized) return false;
+    return lvgl_port_lock(portMAX_DELAY);
+}
+
+bool lvgl_try_lock_timed(uint32_t timeout) {
+    if (!initialized) return false;
+    return lvgl_port_lock(millis_to_ticks(timeout));
+}
+
+void lvgl_unlock(void) {
+    if (!initialized) return;
+    lvgl_port_unlock();
+}
+
+error_t lvgl_arch_start() {
+    const lvgl_port_cfg_t lvgl_cfg = {
+        .task_priority = lvgl_module_config.task_priority,
+        .task_stack = lvgl_module_config.task_stack_size,
+        .task_affinity = lvgl_module_config.task_affinity,
+        .task_max_sleep_ms = 500,
+        .timer_period_ms = 5
+    };
+
+    if (lvgl_port_init(&lvgl_cfg) != ESP_OK) {
+        return ERROR_RESOURCE;
+    }
+
+    // We must have the state set to "initialized" so that the lvgl lock works
+    // when we call listener functions. These functions could create new
+    // devices and services. The latter might start adding widgets immediately.
+    initialized = true;
+
+    if (lvgl_module_config.on_start) lvgl_module_config.on_start();
+
+    return ERROR_NONE;
+}
+
+error_t lvgl_arch_stop() {
+    if (lvgl_module_config.on_stop) lvgl_module_config.on_stop();
+
+    if (lvgl_port_deinit() != ESP_OK) {
+        // Call on_start again to recover
+        if (lvgl_module_config.on_start) lvgl_module_config.on_start();
+        return ERROR_RESOURCE;
+    }
+
+    initialized = false;
+
+    return ERROR_NONE;
+}
+
+#endif

Modules/lvgl-module/Source/arch/lvgl_posix.c

@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-3.0-only
+#ifndef ESP_PLATFORM
+
+#include <tactility/check.h>
+#include <tactility/delay.h>
+#include <tactility/concurrent/recursive_mutex.h>
+#include <tactility/concurrent/thread.h>
+#include <tactility/freertos/task.h>
+#include <tactility/time.h>
+
+#include <lvgl.h>
+
+#include "tactility/lvgl_module.h"
+
+extern struct LvglModuleConfig lvgl_module_config;
+
+// Mutex for LVGL drawing
+static struct RecursiveMutex lvgl_mutex;
+static bool lvgl_mutex_initialised = false;
+static struct RecursiveMutex task_mutex;
+static bool task_mutex_initialised = false;
+
+static uint32_t task_max_sleep_ms = 10;
+static TaskHandle_t lvgl_task_handle = NULL;
+static bool lvgl_task_interrupt_requested = false;
+
+#define LVGL_STOP_POLL_INTERVAL 10
+#define LVGL_STOP_TIMEOUT 5000
+
+static void task_lock(void) {
+    if (!task_mutex_initialised) return;
+    recursive_mutex_lock(&task_mutex);
+}
+
+static void task_unlock(void) {
+    if (!task_mutex_initialised) return;
+    recursive_mutex_unlock(&task_mutex);
+}
+
+bool lvgl_lock(void) {
+    if (!lvgl_mutex_initialised) return false;
+    recursive_mutex_lock(&lvgl_mutex);
+    return true;
+}
+
+bool lvgl_try_lock_timed(uint32_t timeout) {
+    if (!lvgl_mutex_initialised) return false;
+    return recursive_mutex_try_lock_timed(&lvgl_mutex, millis_to_ticks(timeout));
+}
+
+void lvgl_unlock(void) {
+    if (!lvgl_mutex_initialised) return;
+    recursive_mutex_unlock(&lvgl_mutex);
+}
+
+static void lvgl_task_set_interrupted(bool interrupted) {
+    task_lock();
+    lvgl_task_interrupt_requested = interrupted;
+    task_unlock();
+}
+
+static bool lvgl_task_is_interrupt_requested() {
+    task_lock();
+    bool result = lvgl_task_interrupt_requested;
+    task_unlock();
+    return result;
+}
+
+static void lvgl_task(void* arg) {
+    uint32_t task_delay_ms = task_max_sleep_ms;
+
+    check(!lvgl_task_is_interrupt_requested());
+
+    // on_start must be called from the task, otherwise the display doesn't work
+    if (lvgl_module_config.on_start) lvgl_module_config.on_start();
+
+    while (!lvgl_task_is_interrupt_requested()) {
+        if (lvgl_try_lock_timed(10)) {
+            task_delay_ms = lv_timer_handler();
+            lvgl_unlock();
+        }
+        if ((task_delay_ms > task_max_sleep_ms) || (1 == task_delay_ms)) {
+            task_delay_ms = task_max_sleep_ms;
+        } else if (task_delay_ms < 1) {
+            task_delay_ms = 1;
+        }
+        vTaskDelay(pdMS_TO_TICKS(task_delay_ms));
+    }
+
+    if (lvgl_module_config.on_stop) lvgl_module_config.on_stop();
+
+    task_lock();
+    lvgl_task_handle = NULL;
+    task_unlock();
+
+    vTaskDelete(NULL);
+}
+
+error_t lvgl_arch_start() {
+    if (!lvgl_mutex_initialised) {
+        recursive_mutex_construct(&lvgl_mutex);
+        lvgl_mutex_initialised = true;
+    }
+
+    if (!task_mutex_initialised) {
+        recursive_mutex_construct(&task_mutex);
+        task_mutex_initialised = true;
+    }
+
+    lvgl_task_set_interrupted(false);
+
+    lv_init();
+
+    // Create the main app loop, like ESP-IDF
+    BaseType_t task_result = xTaskCreate(
+        lvgl_task,
+        "lvgl",
+        lvgl_module_config.task_stack_size,
+        NULL,
+        lvgl_module_config.task_priority,
+        &lvgl_task_handle
+    );
+
+    return (task_result == pdTRUE) ? ERROR_NONE : ERROR_RESOURCE;
+}
+
+error_t lvgl_arch_stop() {
+    TickType_t start_ticks = get_ticks();
+    lvgl_task_set_interrupted(true);
+    while (true) {
+        task_lock();
+        bool done = (lvgl_task_handle == NULL);
+        task_unlock();
+        if (done) break;
+
+        delay_ticks(LVGL_STOP_POLL_INTERVAL);
+
+        if (get_ticks() - start_ticks > LVGL_STOP_TIMEOUT) {
+            return ERROR_TIMEOUT;
+        }
+    }
+
+    lv_deinit();
+
+    return ERROR_NONE;
+}
+
+#endif

Modules/lvgl-module/Source/module.c

@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-3.0-only
+#include <lvgl.h>
+#include <string.h>
+#include <tactility/module.h>
+#include <tactility/lvgl_module.h>
+
+extern const struct ModuleSymbol lvgl_module_symbols[];
+error_t lvgl_arch_start();
+error_t lvgl_arch_stop();
+
+static bool is_running = false;
+static bool is_configured = false;
+
+struct LvglModuleConfig lvgl_module_config = {
+    NULL,
+    NULL,
+    0,
+    0,
+#ifdef ESP_PLATFORM
+    0,
+#endif
+};
+
+void lvgl_module_configure(const struct LvglModuleConfig config) {
+    is_configured = true;
+    memcpy(&lvgl_module_config, &config, sizeof(struct LvglModuleConfig));
+}
+
+static error_t start() {
+    if (!is_configured) {
+        return ERROR_INVALID_STATE;
+    }
+
+    if (is_running) {
+        return ERROR_NONE;
+    }
+
+    error_t result = lvgl_arch_start();
+    if (result == ERROR_NONE) {
+        is_running = true;
+    }
+
+    return result;
+}
+
+static error_t stop() {
+    if (!is_running) {
+        return ERROR_NONE;
+    }
+
+    error_t error = lvgl_arch_stop();
+    if (error == ERROR_NONE) {
+        is_running = false;
+    }
+
+    return error;
+}
+
+bool lvgl_is_running() {
+    return is_running;
+}
+
+struct Module lvgl_module = {
+    .name = "lvgl",
+    .start = start,
+    .stop = stop,
+    .symbols = (const struct ModuleSymbol*)lvgl_module_symbols
+};

Modules/lvgl-module/Source/symbols.c

@@ -0,0 +1,364 @@
+#include <tactility/module.h>
+#include <lvgl.h>
+
+const struct ModuleSymbol lvgl_module_symbols[] = {
+    // lv_event
+    DEFINE_MODULE_SYMBOL(lv_event_get_code),
+    DEFINE_MODULE_SYMBOL(lv_event_get_indev),
+    DEFINE_MODULE_SYMBOL(lv_event_get_key),
+    DEFINE_MODULE_SYMBOL(lv_event_get_param),
+    DEFINE_MODULE_SYMBOL(lv_event_get_scroll_anim),
+    DEFINE_MODULE_SYMBOL(lv_event_get_user_data),
+    DEFINE_MODULE_SYMBOL(lv_event_get_target_obj),
+    DEFINE_MODULE_SYMBOL(lv_event_get_target),
+    DEFINE_MODULE_SYMBOL(lv_event_get_current_target_obj),
+    DEFINE_MODULE_SYMBOL(lv_event_get_draw_task),
+    DEFINE_MODULE_SYMBOL(lv_event_stop_bubbling),
+    // lv_obj
+    DEFINE_MODULE_SYMBOL(lv_color_hex),
+    DEFINE_MODULE_SYMBOL(lv_color_make),
+    DEFINE_MODULE_SYMBOL(lv_color_black),
+    DEFINE_MODULE_SYMBOL(lv_color_white),
+    DEFINE_MODULE_SYMBOL(lv_obj_center),
+    DEFINE_MODULE_SYMBOL(lv_obj_clean),
+    DEFINE_MODULE_SYMBOL(lv_obj_clear_flag),
+    DEFINE_MODULE_SYMBOL(lv_obj_create),
+    DEFINE_MODULE_SYMBOL(lv_obj_delete),
+    DEFINE_MODULE_SYMBOL(lv_obj_add_event_cb),
+    DEFINE_MODULE_SYMBOL(lv_obj_add_flag),
+    DEFINE_MODULE_SYMBOL(lv_obj_add_state),
+    DEFINE_MODULE_SYMBOL(lv_obj_clear_state),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_state),
+    DEFINE_MODULE_SYMBOL(lv_obj_align),
+    DEFINE_MODULE_SYMBOL(lv_obj_align_to),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_parent),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_height),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_width),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_coords),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_x),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_display),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_y),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_content_width),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_content_height),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_group),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_user_data),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_state),
+    DEFINE_MODULE_SYMBOL(lv_obj_has_flag),
+    DEFINE_MODULE_SYMBOL(lv_obj_has_flag_any),
+    DEFINE_MODULE_SYMBOL(lv_obj_has_state),
+    DEFINE_MODULE_SYMBOL(lv_obj_invalidate),
+    DEFINE_MODULE_SYMBOL(lv_obj_is_valid),
+    DEFINE_MODULE_SYMBOL(lv_obj_remove_event_cb),
+    DEFINE_MODULE_SYMBOL(lv_obj_remove_flag),
+    DEFINE_MODULE_SYMBOL(lv_obj_remove_state),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_pos),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_flex_align),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_flex_flow),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_flex_grow),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_layout),
+    DEFINE_MODULE_SYMBOL(lv_obj_is_layout_positioned),
+    DEFINE_MODULE_SYMBOL(lv_obj_mark_layout_as_dirty),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_style_layout),
+    DEFINE_MODULE_SYMBOL(lv_obj_update_layout),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_scroll_dir),
+    DEFINE_MODULE_SYMBOL(lv_obj_scroll_to_view),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_radius),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_border_width),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_border_color),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_border_opa),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_line_width),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_line_color),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_line_opa),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_line_rounded),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_opa),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_bg_color),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_bg_opa),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_bg_image_src),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_bg_image_opa),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_bg_image_recolor),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_bg_image_recolor_opa),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_margin_hor),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_margin_ver),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_margin_top),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_margin_bottom),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_margin_left),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_margin_right),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_margin_all),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_pad_all),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_pad_hor),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_pad_ver),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_pad_top),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_pad_bottom),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_pad_left),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_pad_right),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_pad_column),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_pad_row),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_border_post),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_border_side),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_text_opa),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_text_align),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_text_color),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_text_font),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_text_decor),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_text_letter_space),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_text_line_space),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_text_outline_stroke_color),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_text_outline_stroke_opa),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_text_outline_stroke_width),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_user_data),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_align),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_x),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_y),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_size),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_width),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_height),
+    DEFINE_MODULE_SYMBOL(lv_obj_send_event),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_outline_color),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_outline_width),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_outline_pad),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_outline_opa),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_flex_cross_place),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_image_recolor_opa),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_pad_gap),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_shadow_width),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_size),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_transform_pivot_x),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_transform_pivot_y),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_style_transform_rotation),
+    DEFINE_MODULE_SYMBOL(lv_obj_scroll_to_y),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_scrollbar_mode),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_child_count),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_child),
+    DEFINE_MODULE_SYMBOL(lv_obj_get_index),
+    DEFINE_MODULE_SYMBOL(lv_obj_remove_style_all),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_content_height),
+    DEFINE_MODULE_SYMBOL(lv_obj_set_content_width),
+    DEFINE_MODULE_SYMBOL(lv_obj_event_base),
+    DEFINE_MODULE_SYMBOL(lv_obj_class_create_obj),
+    DEFINE_MODULE_SYMBOL(lv_obj_class_init_obj),
+    // lv_font
+    DEFINE_MODULE_SYMBOL(lv_font_get_default),
+    // lv_theme
+    DEFINE_MODULE_SYMBOL(lv_theme_get_color_primary),
+    DEFINE_MODULE_SYMBOL(lv_theme_get_color_secondary),
+    DEFINE_MODULE_SYMBOL(lv_theme_get_font_small),
+    DEFINE_MODULE_SYMBOL(lv_theme_get_font_normal),
+    DEFINE_MODULE_SYMBOL(lv_theme_get_font_large),
+    // lv_button
+    DEFINE_MODULE_SYMBOL(lv_button_create),
+    DEFINE_MODULE_SYMBOL(lv_btn_create),
+    // lv_buttonmatrix
+    DEFINE_MODULE_SYMBOL(lv_buttonmatrix_create),
+    DEFINE_MODULE_SYMBOL(lv_buttonmatrix_get_button_text),
+    DEFINE_MODULE_SYMBOL(lv_buttonmatrix_get_map),
+    DEFINE_MODULE_SYMBOL(lv_buttonmatrix_get_one_checked),
+    DEFINE_MODULE_SYMBOL(lv_buttonmatrix_get_selected_button),
+    DEFINE_MODULE_SYMBOL(lv_buttonmatrix_set_button_ctrl),
+    DEFINE_MODULE_SYMBOL(lv_buttonmatrix_set_button_ctrl_all),
+    DEFINE_MODULE_SYMBOL(lv_buttonmatrix_set_ctrl_map),
+    DEFINE_MODULE_SYMBOL(lv_buttonmatrix_set_map),
+    DEFINE_MODULE_SYMBOL(lv_buttonmatrix_set_one_checked),
+    DEFINE_MODULE_SYMBOL(lv_buttonmatrix_set_button_width),
+    DEFINE_MODULE_SYMBOL(lv_buttonmatrix_set_selected_button),
+    // lv_canvas
+    DEFINE_MODULE_SYMBOL(lv_canvas_create),
+    DEFINE_MODULE_SYMBOL(lv_canvas_set_draw_buf),
+    DEFINE_MODULE_SYMBOL(lv_canvas_set_px),
+    // lv_label
+    DEFINE_MODULE_SYMBOL(lv_label_create),
+    DEFINE_MODULE_SYMBOL(lv_label_cut_text),
+    DEFINE_MODULE_SYMBOL(lv_label_get_long_mode),
+    DEFINE_MODULE_SYMBOL(lv_label_set_long_mode),
+    DEFINE_MODULE_SYMBOL(lv_label_get_text),
+    DEFINE_MODULE_SYMBOL(lv_label_set_text),
+    DEFINE_MODULE_SYMBOL(lv_label_set_text_fmt),
+    // lv_switch
+    DEFINE_MODULE_SYMBOL(lv_switch_create),
+    // lv_checkbox
+    DEFINE_MODULE_SYMBOL(lv_checkbox_create),
+    DEFINE_MODULE_SYMBOL(lv_checkbox_set_text),
+    DEFINE_MODULE_SYMBOL(lv_checkbox_get_text),
+    DEFINE_MODULE_SYMBOL(lv_checkbox_set_text_static),
+    // lv_bar
+    DEFINE_MODULE_SYMBOL(lv_bar_create),
+    DEFINE_MODULE_SYMBOL(lv_bar_get_max_value),
+    DEFINE_MODULE_SYMBOL(lv_bar_get_min_value),
+    DEFINE_MODULE_SYMBOL(lv_bar_get_mode),
+    DEFINE_MODULE_SYMBOL(lv_bar_get_start_value),
+    DEFINE_MODULE_SYMBOL(lv_bar_get_value),
+    DEFINE_MODULE_SYMBOL(lv_bar_set_mode),
+    DEFINE_MODULE_SYMBOL(lv_bar_set_range),
+    DEFINE_MODULE_SYMBOL(lv_bar_set_start_value),
+    DEFINE_MODULE_SYMBOL(lv_bar_set_value),
+    DEFINE_MODULE_SYMBOL(lv_bar_is_symmetrical),
+    // lv_dropdown
+    DEFINE_MODULE_SYMBOL(lv_dropdown_create),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_add_option),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_clear_options),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_close),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_get_dir),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_get_list),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_get_option_count),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_get_option_index),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_get_options),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_get_selected),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_get_selected_str),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_get_selected_highlight),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_set_dir),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_set_options),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_set_options_static),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_set_selected),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_set_selected_highlight),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_set_symbol),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_set_text),
+    DEFINE_MODULE_SYMBOL(lv_dropdown_open),
+    // lv_list
+    DEFINE_MODULE_SYMBOL(lv_list_create),
+    DEFINE_MODULE_SYMBOL(lv_list_add_text),
+    DEFINE_MODULE_SYMBOL(lv_list_add_button),
+    DEFINE_MODULE_SYMBOL(lv_list_get_button_text),
+    DEFINE_MODULE_SYMBOL(lv_list_set_button_text),
+    // lv_keyboard
+    DEFINE_MODULE_SYMBOL(lv_keyboard_create),
+    DEFINE_MODULE_SYMBOL(lv_keyboard_set_textarea),
+    // lv_textarea
+    DEFINE_MODULE_SYMBOL(lv_textarea_create),
+    DEFINE_MODULE_SYMBOL(lv_textarea_get_accepted_chars),
+    DEFINE_MODULE_SYMBOL(lv_textarea_get_label),
+    DEFINE_MODULE_SYMBOL(lv_textarea_get_max_length),
+    DEFINE_MODULE_SYMBOL(lv_textarea_get_one_line),
+    DEFINE_MODULE_SYMBOL(lv_textarea_get_text),
+    DEFINE_MODULE_SYMBOL(lv_textarea_get_text_selection),
+    DEFINE_MODULE_SYMBOL(lv_textarea_set_one_line),
+    DEFINE_MODULE_SYMBOL(lv_textarea_set_accepted_chars),
+    DEFINE_MODULE_SYMBOL(lv_textarea_set_align),
+    DEFINE_MODULE_SYMBOL(lv_textarea_set_password_bullet),
+    DEFINE_MODULE_SYMBOL(lv_textarea_set_password_mode),
+    DEFINE_MODULE_SYMBOL(lv_textarea_set_password_show_time),
+    DEFINE_MODULE_SYMBOL(lv_textarea_set_placeholder_text),
+    DEFINE_MODULE_SYMBOL(lv_textarea_set_text),
+    DEFINE_MODULE_SYMBOL(lv_textarea_set_text_selection),
+    DEFINE_MODULE_SYMBOL(lv_textarea_set_max_length),
+    DEFINE_MODULE_SYMBOL(lv_textarea_set_cursor_click_pos),
+    DEFINE_MODULE_SYMBOL(lv_textarea_add_text),
+    // lv_palette
+    DEFINE_MODULE_SYMBOL(lv_palette_main),
+    DEFINE_MODULE_SYMBOL(lv_palette_darken),
+    DEFINE_MODULE_SYMBOL(lv_palette_lighten),
+    // lv_display
+    DEFINE_MODULE_SYMBOL(lv_display_get_default),
+    DEFINE_MODULE_SYMBOL(lv_display_get_horizontal_resolution),
+    DEFINE_MODULE_SYMBOL(lv_display_get_vertical_resolution),
+    DEFINE_MODULE_SYMBOL(lv_display_get_physical_horizontal_resolution),
+    DEFINE_MODULE_SYMBOL(lv_display_get_physical_vertical_resolution),
+    DEFINE_MODULE_SYMBOL(lv_display_dpx),
+    DEFINE_MODULE_SYMBOL(lv_display_get_inactive_time),
+    DEFINE_MODULE_SYMBOL(lv_display_get_rotation),
+    DEFINE_MODULE_SYMBOL(lv_display_set_rotation),
+    DEFINE_MODULE_SYMBOL(lv_display_set_offset),
+    DEFINE_MODULE_SYMBOL(lv_display_trigger_activity),
+    // lv_pct
+    DEFINE_MODULE_SYMBOL(lv_pct),
+    DEFINE_MODULE_SYMBOL(lv_pct_to_px),
+    // lv_spinbox
+    DEFINE_MODULE_SYMBOL(lv_spinbox_create),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_decrement),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_get_rollover),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_get_step),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_get_value),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_increment),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_set_rollover),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_set_step),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_set_range),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_set_digit_format),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_set_digit_step_direction),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_set_value),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_set_cursor_pos),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_step_next),
+    DEFINE_MODULE_SYMBOL(lv_spinbox_step_prev),
+    // lv_indev
+    DEFINE_MODULE_SYMBOL(lv_indev_get_type),
+    DEFINE_MODULE_SYMBOL(lv_indev_get_point),
+    DEFINE_MODULE_SYMBOL(lv_indev_get_display),
+    DEFINE_MODULE_SYMBOL(lv_indev_get_key),
+    DEFINE_MODULE_SYMBOL(lv_indev_get_gesture_dir),
+    DEFINE_MODULE_SYMBOL(lv_indev_get_state),
+    DEFINE_MODULE_SYMBOL(lv_indev_active),
+    DEFINE_MODULE_SYMBOL(lv_indev_get_next),
+    DEFINE_MODULE_SYMBOL(lv_indev_set_group),
+    // lv_timer
+    DEFINE_MODULE_SYMBOL(lv_timer_handler),
+    DEFINE_MODULE_SYMBOL(lv_timer_handler_run_in_period),
+    DEFINE_MODULE_SYMBOL(lv_timer_periodic_handler),
+    DEFINE_MODULE_SYMBOL(lv_timer_handler_set_resume_cb),
+    DEFINE_MODULE_SYMBOL(lv_timer_create_basic),
+    DEFINE_MODULE_SYMBOL(lv_timer_create),
+    DEFINE_MODULE_SYMBOL(lv_timer_delete),
+    DEFINE_MODULE_SYMBOL(lv_timer_pause),
+    DEFINE_MODULE_SYMBOL(lv_timer_resume),
+    DEFINE_MODULE_SYMBOL(lv_timer_set_cb),
+    DEFINE_MODULE_SYMBOL(lv_timer_set_period),
+    DEFINE_MODULE_SYMBOL(lv_timer_ready),
+    DEFINE_MODULE_SYMBOL(lv_timer_set_repeat_count),
+    DEFINE_MODULE_SYMBOL(lv_timer_set_auto_delete),
+    DEFINE_MODULE_SYMBOL(lv_timer_set_user_data),
+    DEFINE_MODULE_SYMBOL(lv_timer_reset),
+    DEFINE_MODULE_SYMBOL(lv_timer_enable),
+    DEFINE_MODULE_SYMBOL(lv_timer_get_idle),
+    DEFINE_MODULE_SYMBOL(lv_timer_get_time_until_next),
+    DEFINE_MODULE_SYMBOL(lv_timer_get_next),
+    DEFINE_MODULE_SYMBOL(lv_timer_get_user_data),
+    DEFINE_MODULE_SYMBOL(lv_timer_get_paused),
+    // lvgl other
+    DEFINE_MODULE_SYMBOL(lv_refr_now),
+    DEFINE_MODULE_SYMBOL(lv_line_create),
+    DEFINE_MODULE_SYMBOL(lv_line_set_points),
+    DEFINE_MODULE_SYMBOL(lv_line_set_points_mutable),
+    // lv_slider
+    DEFINE_MODULE_SYMBOL(lv_slider_create),
+    DEFINE_MODULE_SYMBOL(lv_slider_get_value),
+    DEFINE_MODULE_SYMBOL(lv_slider_set_range),
+    DEFINE_MODULE_SYMBOL(lv_slider_set_value),
+    // lv_tabview
+    DEFINE_MODULE_SYMBOL(lv_tabview_add_tab),
+    DEFINE_MODULE_SYMBOL(lv_tabview_create),
+    DEFINE_MODULE_SYMBOL(lv_tabview_set_tab_bar_position),
+    DEFINE_MODULE_SYMBOL(lv_tabview_set_tab_bar_size),
+    // lv_screen
+    DEFINE_MODULE_SYMBOL(lv_scr_act),
+    DEFINE_MODULE_SYMBOL(lv_screen_active),
+    DEFINE_MODULE_SYMBOL(lv_layer_top),
+    // lv_group
+    DEFINE_MODULE_SYMBOL(lv_group_remove_obj),
+    DEFINE_MODULE_SYMBOL(lv_group_focus_obj),
+    DEFINE_MODULE_SYMBOL(lv_group_get_default),
+    DEFINE_MODULE_SYMBOL(lv_group_add_obj),
+    DEFINE_MODULE_SYMBOL(lv_group_set_default),
+    DEFINE_MODULE_SYMBOL(lv_group_set_editing),
+    DEFINE_MODULE_SYMBOL(lv_group_create),
+    DEFINE_MODULE_SYMBOL(lv_group_delete),
+    // lv_mem
+    DEFINE_MODULE_SYMBOL(lv_free),
+    DEFINE_MODULE_SYMBOL(lv_malloc),
+    // lv_draw
+    DEFINE_MODULE_SYMBOL(lv_draw_task_get_draw_dsc),
+    DEFINE_MODULE_SYMBOL(lv_draw_task_get_label_dsc),
+    DEFINE_MODULE_SYMBOL(lv_draw_task_get_fill_dsc),
+    DEFINE_MODULE_SYMBOL(lv_draw_buf_create),
+    // lv_image
+    DEFINE_MODULE_SYMBOL(lv_image_create),
+    DEFINE_MODULE_SYMBOL(lv_image_set_src),
+    DEFINE_MODULE_SYMBOL(lv_img_set_src),
+    // lv_anim
+    DEFINE_MODULE_SYMBOL(lv_anim_init),
+    DEFINE_MODULE_SYMBOL(lv_anim_set_duration),
+    DEFINE_MODULE_SYMBOL(lv_anim_set_exec_cb),
+    DEFINE_MODULE_SYMBOL(lv_anim_set_repeat_count),
+    DEFINE_MODULE_SYMBOL(lv_anim_set_values),
+    DEFINE_MODULE_SYMBOL(lv_anim_set_var),
+    DEFINE_MODULE_SYMBOL(lv_anim_set_path_cb),
+    DEFINE_MODULE_SYMBOL(lv_anim_start),
+    DEFINE_MODULE_SYMBOL(lv_anim_path_ease_in_out),
+    DEFINE_MODULE_SYMBOL(lv_anim_path_linear),
+    MODULE_SYMBOL_TERMINATOR
+};