LilyGo T-Display (#406)

+ expose lvglSwapBytes setting for the St7789Display driver.
+ updated all relevant boards accordingly.

.github/workflows/build-firmware.yml

@@ -35,6 +35,7 @@ jobs:
           { id: lilygo-tdongle-s3, arch: esp32s3 },
           { id: lilygo-tdisplay-s3, arch: esp32s3 },
           { id: lilygo-tlora-pager, arch: esp32s3 },
+          { id: lilygo-tdisplay, arch: esp32 },
           { id: m5stack-cardputer, arch: esp32s3 },
           { id: m5stack-cardputer-adv, arch: esp32s3 },
           { id: m5stack-core2, arch: esp32 },

Boards/cyd-2432s028rv3/Source/devices/Display.cpp

@@ -34,7 +34,8 @@ std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
         .bufferSize = LCD_BUFFER_SIZE,
         .touch = createTouch(),
         .backlightDutyFunction = driver::pwmbacklight::setBacklightDuty,
-        .resetPin = GPIO_NUM_NC
+        .resetPin = GPIO_NUM_NC,
+        .lvglSwapBytes = false
     };
 
     auto spi_configuration = std::make_shared<St7789Display::SpiConfiguration>(St7789Display::SpiConfiguration {

Boards/cyd-e32r32p/Source/devices/Display.cpp

@@ -35,6 +35,7 @@ std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
         .touch = createTouch(),
         .backlightDutyFunction = driver::pwmbacklight::setBacklightDuty,
         .resetPin = GPIO_NUM_NC,
+        .lvglSwapBytes = false,
         .rgbElementOrder = LCD_RGB_ELEMENT_ORDER_BGR  // BGR for this display
     };
 

Boards/cyd-jc2432w328c/Source/devices/Display.cpp

@@ -27,7 +27,8 @@ std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
         .bufferSize = LCD_BUFFER_SIZE,
         .touch = createTouch(),
         .backlightDutyFunction = driver::pwmbacklight::setBacklightDuty,
-        .resetPin = GPIO_NUM_NC
+        .resetPin = GPIO_NUM_NC,
+        .lvglSwapBytes = false
     };
 
     auto spi_configuration = std::make_shared<St7789Display::SpiConfiguration>(St7789Display::SpiConfiguration {

Boards/elecrow-crowpanel-advance-28/Source/devices/Display.cpp

@@ -31,7 +31,8 @@ std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
         .bufferSize = LCD_BUFFER_SIZE,
         .touch = createTouch(),
         .backlightDutyFunction = driver::pwmbacklight::setBacklightDuty,
-        .resetPin = GPIO_NUM_NC
+        .resetPin = GPIO_NUM_NC,
+        .lvglSwapBytes = false
     };
 
     auto spi_configuration = std::make_shared<St7789Display::SpiConfiguration>(St7789Display::SpiConfiguration {

Boards/lilygo-tdeck/Source/devices/Display.cpp

@@ -31,7 +31,8 @@ std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
         .bufferSize = LCD_BUFFER_SIZE,
         .touch = createTouch(),
         .backlightDutyFunction = driver::pwmbacklight::setBacklightDuty,
-        .resetPin = GPIO_NUM_NC
+        .resetPin = GPIO_NUM_NC,
+        .lvglSwapBytes = false
     };
 
     auto spi_configuration = std::make_shared<St7789Display::SpiConfiguration>(St7789Display::SpiConfiguration {

Boards/lilygo-tdisplay/CMakeLists.txt

@@ -0,0 +1,7 @@
+file(GLOB_RECURSE SOURCE_FILES Source/*.c*)
+
+idf_component_register(
+    SRCS ${SOURCE_FILES}
+    INCLUDE_DIRS "Source"
+    REQUIRES Tactility ButtonControl esp_lvgl_port ST7789 PwmBacklight driver
+)

Boards/lilygo-tdisplay/Source/Configuration.cpp

@@ -0,0 +1,50 @@
+#include "devices/Display.h"
+
+#include <PwmBacklight.h>
+#include <Tactility/hal/Configuration.h>
+#include <Tactility/lvgl/LvglSync.h>
+#include <ButtonControl.h>
+
+using namespace tt::hal;
+
+static bool initBoot() {
+    return driver::pwmbacklight::init(LCD_PIN_BACKLIGHT);
+}
+
+static std::vector<std::shared_ptr<Device>> createDevices() {
+    return {
+        createDisplay(),
+        ButtonControl::createTwoButtonControl(35, 0)
+    };
+}
+
+extern const Configuration hardwareConfiguration = {
+    .initBoot = initBoot,
+    .uiScale = UiScale::Smallest,
+    .createDevices = createDevices,
+    .i2c = {},
+    .spi {
+        spi::Configuration {
+            .device = SPI2_HOST,
+            .dma = SPI_DMA_CH_AUTO,
+            .config = {
+                .mosi_io_num = GPIO_NUM_19,
+                .miso_io_num = GPIO_NUM_NC,
+                .sclk_io_num = GPIO_NUM_18,
+                .quadwp_io_num = GPIO_NUM_NC,
+                .data4_io_num = GPIO_NUM_NC,
+                .data5_io_num = GPIO_NUM_NC,
+                .data6_io_num = GPIO_NUM_NC,
+                .data7_io_num = GPIO_NUM_NC,
+                .data_io_default_level = false,
+                .max_transfer_sz = LCD_SPI_TRANSFER_SIZE_LIMIT,
+                .flags = 0,
+                .isr_cpu_id = ESP_INTR_CPU_AFFINITY_AUTO,
+                .intr_flags = 0
+            },
+            .initMode = spi::InitMode::ByTactility,
+            .isMutable = false,
+            .lock = tt::lvgl::getSyncLock()
+        }
+    }
+};

Boards/lilygo-tdisplay/Source/devices/Display.cpp

@@ -0,0 +1,32 @@
+#include "Display.h"
+
+#include <PwmBacklight.h>
+#include <St7789Display.h>
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
+    St7789Display::Configuration panel_configuration = {
+        .horizontalResolution = LCD_HORIZONTAL_RESOLUTION,
+        .verticalResolution = LCD_VERTICAL_RESOLUTION,
+        .gapX = 52,
+        .gapY = 40,
+        .swapXY = false,
+        .mirrorX = false,
+        .mirrorY = false,
+        .invertColor = true,
+        .bufferSize = LCD_BUFFER_SIZE,
+        .touch = nullptr,
+        .backlightDutyFunction = driver::pwmbacklight::setBacklightDuty,
+        .resetPin = LCD_PIN_RESET,
+        .lvglSwapBytes = true
+    };
+
+    auto spi_configuration = std::make_shared<St7789Display::SpiConfiguration>(St7789Display::SpiConfiguration {
+        .spiHostDevice = LCD_SPI_HOST,
+        .csPin = LCD_PIN_CS,
+        .dcPin = LCD_PIN_DC,
+        .pixelClockFrequency = 62'500'000,
+        .transactionQueueDepth = 10
+    });
+
+    return std::make_shared<St7789Display>(panel_configuration, spi_configuration);
+}

Boards/lilygo-tdisplay/Source/devices/Display.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include <Tactility/hal/display/DisplayDevice.h>
+#include <memory>
+#include <driver/gpio.h>
+#include <driver/spi_common.h>
+
+constexpr auto LCD_SPI_HOST = SPI2_HOST;
+constexpr auto LCD_PIN_CS = GPIO_NUM_5;
+constexpr auto LCD_PIN_DC = GPIO_NUM_16;
+constexpr auto LCD_PIN_RESET = GPIO_NUM_23;
+constexpr auto LCD_PIN_BACKLIGHT = GPIO_NUM_4;
+constexpr auto LCD_HORIZONTAL_RESOLUTION = 135;
+constexpr auto LCD_VERTICAL_RESOLUTION = 240;
+constexpr auto LCD_BUFFER_HEIGHT = LCD_VERTICAL_RESOLUTION / 3;
+constexpr auto LCD_BUFFER_SIZE = LCD_HORIZONTAL_RESOLUTION * LCD_BUFFER_HEIGHT;
+constexpr auto LCD_SPI_TRANSFER_SIZE_LIMIT = LCD_BUFFER_SIZE * LV_COLOR_DEPTH / 8;
+
+std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay();

Boards/m5stack-cardputer-adv/Source/devices/Display.cpp

@@ -16,7 +16,8 @@ std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
         .bufferSize = LCD_BUFFER_SIZE,
         .touch = nullptr,
         .backlightDutyFunction = driver::pwmbacklight::setBacklightDuty,
-        .resetPin = LCD_PIN_RESET
+        .resetPin = LCD_PIN_RESET,
+        .lvglSwapBytes = false
     };
 
     auto spi_configuration = std::make_shared<St7789Display::SpiConfiguration>(St7789Display::SpiConfiguration {

Boards/m5stack-cardputer/Source/devices/Display.cpp

@@ -16,7 +16,8 @@ std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
         .bufferSize = LCD_BUFFER_SIZE,
         .touch = nullptr,
         .backlightDutyFunction = driver::pwmbacklight::setBacklightDuty,
-        .resetPin = LCD_PIN_RESET
+        .resetPin = LCD_PIN_RESET,
+        .lvglSwapBytes = false
     };
 
     auto spi_configuration = std::make_shared<St7789Display::SpiConfiguration>(St7789Display::SpiConfiguration {

Boards/m5stack-stickc-plus/Source/devices/Display.cpp

@@ -50,7 +50,8 @@ std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
         .bufferSize = LCD_BUFFER_SIZE,
         .touch = nullptr,
         .backlightDutyFunction = setBrightness,
-        .resetPin = LCD_PIN_RESET
+        .resetPin = LCD_PIN_RESET,
+        .lvglSwapBytes = false
     };
 
     auto spi_configuration = std::make_shared<St7789Display::SpiConfiguration>(St7789Display::SpiConfiguration {

Boards/m5stack-stickc-plus2/Source/devices/Display.cpp

@@ -16,7 +16,8 @@ std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
         .bufferSize = LCD_BUFFER_SIZE,
         .touch = nullptr,
         .backlightDutyFunction = driver::pwmbacklight::setBacklightDuty,
-        .resetPin = LCD_PIN_RESET
+        .resetPin = LCD_PIN_RESET,
+        .lvglSwapBytes = false
     };
 
     auto spi_configuration = std::make_shared<St7789Display::SpiConfiguration>(St7789Display::SpiConfiguration {

Boards/waveshare-s3-lcd-13/Source/devices/Display.cpp

@@ -16,7 +16,8 @@ std::shared_ptr<tt::hal::display::DisplayDevice> createDisplay() {
         .bufferSize = LCD_BUFFER_SIZE,
         .touch = nullptr,
         .backlightDutyFunction = driver::pwmbacklight::setBacklightDuty,
-        .resetPin = GPIO_NUM_42
+        .resetPin = GPIO_NUM_42,
+        .lvglSwapBytes = false
     };
 
     auto spi_configuration = std::make_shared<St7789Display::SpiConfiguration>(St7789Display::SpiConfiguration {

Buildscripts/CDN/devices.properties

@@ -92,6 +92,11 @@ boardName=T-Deck,T-Deck Plus
 incubating=false
 infoMessage=If two serial devices are visible, try them both.<br/><br/>To put the device into bootloader mode: <br/>1. Press the trackball and then the reset button at the same time,<br/>2. Let go of the reset button, then the trackball.<br/><br/>When this website reports that flashing is finished, you likely have to press the reset button.
 
+[lilygo-tdisplay]
+vendor=LilyGO
+boardName=T-Display
+incubating=true
+
 [lilygo-tdisplay-s3]
 vendor=LilyGO
 boardName=T-Display S3

Drivers/ST7789/Source/St7789Display.cpp

@@ -18,7 +18,7 @@ std::shared_ptr<EspLcdConfiguration> St7789Display::createEspLcdConfiguration(co
         .backlightDutyFunction = configuration.backlightDutyFunction,
         .resetPin = configuration.resetPin,
         .lvglColorFormat = LV_COLOR_FORMAT_RGB565,
-        .lvglSwapBytes = false,
+        .lvglSwapBytes = configuration.lvglSwapBytes,
         .rgbElementOrder = configuration.rgbElementOrder,
         .bitsPerPixel = 16,
     });

Drivers/ST7789/Source/St7789Display.h

@@ -26,6 +26,7 @@ public:
         std::shared_ptr<tt::hal::touch::TouchDevice> touch;
         std::function<void(uint8_t)> _Nullable backlightDutyFunction;
         gpio_num_t resetPin;
+        bool lvglSwapBytes;
         lcd_rgb_element_order_t rgbElementOrder = LCD_RGB_ELEMENT_ORDER_RGB;
     };
 

Firmware/Kconfig

@@ -49,6 +49,8 @@ menu "Tactility App"
             bool "LilyGo T-Dongle S3"
         config TT_BOARD_LILYGO_TLORA_PAGER
             bool "LilyGo T-Lora Pager"
+        config TT_BOARD_LILYGO_TDISPLAY
+            bool "LilyGo T-Display"
         config TT_BOARD_M5STACK_CARDPUTER
             bool "M5Stack Cardputer"
         config TT_BOARD_M5STACK_CARDPUTER_ADV

Tactility/Include/Tactility/hal/usb/Usb.h

@@ -5,7 +5,14 @@ namespace tt::hal::usb {
 enum class Mode {
     Default, // Default state of USB stack
     None, // State after TinyUSB was used and (partially) deinitialized
-    MassStorageSdmmc
+    MassStorageSdmmc,
+    MassStorageFlash  // For internal flash /data partition
+};
+
+enum class BootMode {
+    None,
+    Sdmmc,
+    Flash
 };
 
 bool startMassStorageWithSdmmc();
@@ -18,4 +25,11 @@ void rebootIntoMassStorageSdmmc();
 bool isUsbBootMode();
 void resetUsbBootMode();
 
+BootMode getUsbBootMode();
+
+// Flash-based mass storage
+bool startMassStorageWithFlash();
+bool canRebootIntoMassStorageFlash();
+void rebootIntoMassStorageFlash();
+
 }

Tactility/Private/Tactility/PartitionsEsp.h

@@ -3,11 +3,13 @@
 #ifdef ESP_PLATFORM
 
 #include "esp_err.h"
+#include "esp_vfs_fat.h"
 
 namespace tt {
 
 esp_err_t initPartitionsEsp();
+wl_handle_t getDataPartitionWlHandle();
 
 } // namespace
 
-#endif // ESP_PLATFORM
+#endif // ESP_PLATFORM

Tactility/Private/Tactility/hal/usb/UsbTusb.h

@@ -2,4 +2,6 @@
 
 bool tusbIsSupported();
 bool tusbStartMassStorageWithSdmmc();
+bool tusbStartMassStorageWithFlash();
 void tusbStop();
+bool tusbCanStartMassStorageWithFlash();

Tactility/Source/PartitionsEsp.cpp

@@ -22,6 +22,10 @@ static esp_err_t initNvsFlashSafely() {
 
 static wl_handle_t data_wl_handle = WL_INVALID_HANDLE;
 
+wl_handle_t getDataPartitionWlHandle() {
+    return data_wl_handle;
+}
+
 size_t getSectorSize() {
 #if defined(CONFIG_FATFS_SECTOR_512)
     return 512;

Tactility/Source/app/boot/Boot.cpp

@@ -71,8 +71,19 @@ class BootApp : public App {
         }
 
         TT_LOG_I(TAG, "Rebooting into mass storage device mode");
+        auto mode = hal::usb::getUsbBootMode();  // Get mode before reset
         hal::usb::resetUsbBootMode();
-        hal::usb::startMassStorageWithSdmmc();
+        if (mode == hal::usb::BootMode::Flash) {
+            if (!hal::usb::startMassStorageWithFlash()) {
+                TT_LOG_E(TAG, "Unable to start flash mass storage");
+                return false;
+            }
+        } else if (mode == hal::usb::BootMode::Sdmmc) {
+            if (!hal::usb::startMassStorageWithSdmmc()) {
+                TT_LOG_E(TAG, "Unable to start SD mass storage");
+                return false;
+            }
+        }
 
         return true;
     }

Tactility/Source/app/usbsettings/UsbSettings.cpp

@@ -11,32 +11,50 @@
 
 namespace tt::app::usbsettings {
 
-static void onRebootMassStorage(TT_UNUSED lv_event_t* event) {
+static void onRebootMassStorageSdmmc(TT_UNUSED lv_event_t* event) {
     hal::usb::rebootIntoMassStorageSdmmc();
 }
 
+// Flash reboot handler
+static void onRebootMassStorageFlash(TT_UNUSED lv_event_t* event) {
+    hal::usb::rebootIntoMassStorageFlash();
+}
+
 class UsbSettingsApp : public App {
 
     void onShow(AppContext& app, lv_obj_t* parent) override {
         auto* toolbar = lvgl::toolbar_create(parent, app);
         lv_obj_align(toolbar, LV_ALIGN_TOP_MID, 0, 0);
 
-        if (hal::usb::canRebootIntoMassStorageSdmmc()) {
-            auto* button = lv_button_create(parent);
-            auto* label = lv_label_create(button);
-            lv_label_set_text(label, "Reboot as USB storage");
-            lv_obj_align(button, LV_ALIGN_CENTER, 0, 0);
-            lv_obj_add_event_cb(button, onRebootMassStorage, LV_EVENT_SHORT_CLICKED, nullptr);
-        } else {
+        // Create a wrapper container for buttons
+        auto* wrapper = lv_obj_create(parent);
+        lv_obj_set_flex_flow(wrapper, LV_FLEX_FLOW_COLUMN);
+        lv_obj_set_flex_align(wrapper, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER, LV_FLEX_ALIGN_CENTER);
+        lv_obj_set_size(wrapper, lv_pct(100), LV_SIZE_CONTENT);
+        lv_obj_align(wrapper, LV_ALIGN_CENTER, 0, 0);
+
+        bool hasSd = hal::usb::canRebootIntoMassStorageSdmmc();
+        bool hasFlash = hal::usb::canRebootIntoMassStorageFlash();
+
+        if (hasSd) {
+            auto* button_sd = lv_button_create(wrapper);
+            auto* label_sd = lv_label_create(button_sd);
+            lv_label_set_text(label_sd, "Reboot as USB storage (SD)");
+            lv_obj_add_event_cb(button_sd, onRebootMassStorageSdmmc, LV_EVENT_SHORT_CLICKED, nullptr);
+        }
+
+        if (hasFlash) {
+            auto* button_flash = lv_button_create(wrapper);
+            auto* label_flash = lv_label_create(button_flash);
+            lv_label_set_text(label_flash, "Reboot as USB storage (Flash)");
+            lv_obj_add_event_cb(button_flash, onRebootMassStorageFlash, LV_EVENT_SHORT_CLICKED, nullptr);
+        }
+
+        if (!hasSd && !hasFlash) {
             bool supported = hal::usb::isSupported();
-            const char* first = supported ? "USB storage not available:" : "USB driver not supported";
-            const char* second = supported ? "SD card not mounted" : "on this hardware";
-            auto* label_a = lv_label_create(parent);
-            lv_label_set_text(label_a, first);
-            lv_obj_align(label_a, LV_ALIGN_CENTER, 0, 0);
-            auto* label_b = lv_label_create(parent);
-            lv_label_set_text(label_b, second);
-            lv_obj_align_to(label_b, label_a, LV_ALIGN_OUT_BOTTOM_MID, 0, 4);
+            const char* message = supported ? "USB storage not available" : "USB driver not supported";
+            auto* label = lv_label_create(wrapper);
+            lv_label_set_text(label, message);
         }
     }
 };

Tactility/Source/hal/usb/Usb.cpp

@@ -9,14 +9,15 @@
 namespace tt::hal::usb {
 
 constexpr auto* TAG = "usb";
-constexpr auto BOOT_FLAG = 42;
+constexpr auto BOOT_FLAG_SDMMC = 42;  // Existing
+constexpr auto BOOT_FLAG_FLASH = 43;  // For flash mode
 
-struct BootMode {
+struct BootModeData {
     uint32_t flag = 0;
 };
 
 static Mode currentMode = Mode::Default;
-static RTC_NOINIT_ATTR BootMode bootMode;
+static RTC_NOINIT_ATTR BootModeData bootModeData;
 
 sdmmc_card_t* _Nullable getCard() {
     auto sdcards = findDevices<sdcard::SpiSdCardDevice>(Device::Type::SdCard);
@@ -87,17 +88,55 @@ bool canRebootIntoMassStorageSdmmc() {
 
 void rebootIntoMassStorageSdmmc() {
     if (tusbIsSupported()) {
-        bootMode.flag = BOOT_FLAG;
+        bootModeData.flag = BOOT_FLAG_SDMMC;
+        esp_restart();
+    }
+}
+
+// NEW: Flash mass storage functions
+bool startMassStorageWithFlash() {
+    if (!canStartNewMode()) {
+        TT_LOG_E(TAG, "Can't start flash mass storage");
+        return false;
+    }
+
+    if (tusbStartMassStorageWithFlash()) {
+        currentMode = Mode::MassStorageFlash;
+        return true;
+    } else {
+        TT_LOG_E(TAG, "Failed to init flash mass storage");
+        return false;
+    }
+}
+
+bool canRebootIntoMassStorageFlash() {
+    return tusbCanStartMassStorageWithFlash();
+}
+
+void rebootIntoMassStorageFlash() {
+    if (tusbCanStartMassStorageWithFlash()) {
+        bootModeData.flag = BOOT_FLAG_FLASH;
         esp_restart();
     }
 }
 
 bool isUsbBootMode() {
-    return bootMode.flag == BOOT_FLAG;
+    return bootModeData.flag == BOOT_FLAG_SDMMC || bootModeData.flag == BOOT_FLAG_FLASH;  // Support both
+}
+
+BootMode getUsbBootMode() {
+    switch (bootModeData.flag) {
+        case BOOT_FLAG_SDMMC:
+            return BootMode::Sdmmc;
+        case BOOT_FLAG_FLASH:
+            return BootMode::Flash;
+        default:
+            return BootMode::None;
+    }
 }
 
 void resetUsbBootMode() {
-    bootMode.flag = 0;
+    bootModeData.flag = 0;
 }
 
 }

Tactility/Source/hal/usb/UsbMock.cpp

@@ -9,10 +9,14 @@ namespace tt::hal::usb {
 bool startMassStorageWithSdmmc() { return false; }
 void stop() {}
 Mode getMode() { return Mode::Default; }
+BootMode getUsbBootMode() { return BootMode::None; }
 bool isSupported() { return false; }
 
 bool canRebootIntoMassStorageSdmmc() { return false; }
 void rebootIntoMassStorageSdmmc() {}
+bool startMassStorageWithFlash() { return false; }
+bool canRebootIntoMassStorageFlash() { return false; }
+void rebootIntoMassStorageFlash() {}
 bool isUsbBootMode() { return false; }
 void resetUsbBootMode() {}
 

Tactility/Source/hal/usb/UsbTusb.cpp

@@ -1,6 +1,7 @@
 #ifdef ESP_PLATFORM
 
 #include "Tactility/hal/usb/UsbTusb.h"
+#include <Tactility/PartitionsEsp.h>
 
 #include <sdkconfig.h>
 
@@ -9,10 +10,12 @@
 #include <Tactility/Log.h>
 #include <tinyusb.h>
 #include <tusb_msc_storage.h>
+#include <wear_levelling.h>
 
 #define TAG "usb"
 #define EPNUM_MSC 1
 #define TUSB_DESC_TOTAL_LEN (TUD_CONFIG_DESC_LEN + TUD_MSC_DESC_LEN)
+#define SECTOR_SIZE 512
 
 namespace tt::hal::usb {
     extern sdmmc_card_t* _Nullable getCard();
@@ -90,9 +93,9 @@ static uint8_t const msc_hs_configuration_desc[] = {
 
 static void storage_mount_changed_cb(tinyusb_msc_event_t* event) {
     if (event->mount_changed_data.is_mounted) {
-        TT_LOG_I(TAG, "Mounted");
+        TT_LOG_I(TAG, "MSC Mounted");
     } else {
-        TT_LOG_I(TAG, "Unmounted");
+        TT_LOG_I(TAG, "MSC Unmounted");
     }
 }
 
@@ -152,22 +155,62 @@ bool tusbStartMassStorageWithSdmmc() {
 
     auto result = tinyusb_msc_storage_init_sdmmc(&config_sdmmc);
     if (result != ESP_OK) {
-        TT_LOG_E(TAG, "TinyUSB init failed: %s", esp_err_to_name(result));
+        TT_LOG_E(TAG, "TinyUSB SDMMC init failed: %s", esp_err_to_name(result));
+    } else {
+        TT_LOG_I(TAG, "TinyUSB SDMMC init success");
     }
 
     return result == ESP_OK;
 }
 
+bool tusbStartMassStorageWithFlash() {
+    TT_LOG_I(TAG, "Starting flash MSC");
+    ensureDriverInstalled();
+
+    wl_handle_t handle = tt::getDataPartitionWlHandle();
+    if (handle == WL_INVALID_HANDLE) {
+        TT_LOG_E(TAG, "WL not mounted for /data");
+        return false;
+    }
+
+    const tinyusb_msc_spiflash_config_t config_flash = {
+        .wl_handle = handle,
+        .callback_mount_changed = storage_mount_changed_cb,
+        .callback_premount_changed = nullptr,
+        .mount_config = {
+            .format_if_mount_failed = false,
+            .max_files = 5,
+            .allocation_unit_size = 0,
+            .disk_status_check_enable = false,
+            .use_one_fat = false
+        }
+    };
+
+    esp_err_t result = tinyusb_msc_storage_init_spiflash(&config_flash);
+    if (result != ESP_OK) {
+        TT_LOG_E(TAG, "TinyUSB flash init failed: %s", esp_err_to_name(result));
+    } else {
+        TT_LOG_I(TAG, "TinyUSB flash init success");
+    }
+    return result == ESP_OK;
+}
+
 void tusbStop() {
     tinyusb_msc_storage_deinit();
 }
 
+bool tusbCanStartMassStorageWithFlash() {
+    return tusbIsSupported() && (tt::getDataPartitionWlHandle() != WL_INVALID_HANDLE);
+}
+
 #else
 
 bool tusbIsSupported() { return false; }
 bool tusbStartMassStorageWithSdmmc() { return false; }
+bool tusbStartMassStorageWithFlash() { return false; }
 void tusbStop() {}
+bool tusbCanStartMassStorageWithFlash() { return false; }
 
-#endif // TinyUSB enabled
+#endif // CONFIG_TINYUSB_MSC_ENABLED
 
 #endif // ESP_PLATFORM

sdkconfig.board.lilygo-tdisplay

@@ -0,0 +1,56 @@
+# Software defaults
+# Increase stack size for WiFi (fixes crash after scan)
+CONFIG_ESP_SYSTEM_EVENT_TASK_STACK_SIZE=3072
+CONFIG_ESP_MAIN_TASK_STACK_SIZE=6144
+CONFIG_LV_FONT_MONTSERRAT_14=y
+CONFIG_LV_FONT_MONTSERRAT_18=y
+CONFIG_LV_USE_USER_DATA=y
+CONFIG_LV_USE_FS_STDIO=y
+CONFIG_LV_FS_STDIO_LETTER=65
+CONFIG_LV_FS_STDIO_PATH=""
+CONFIG_LV_FS_STDIO_CACHE_SIZE=4096
+CONFIG_LV_USE_LODEPNG=y
+CONFIG_LV_USE_BUILTIN_MALLOC=n
+CONFIG_LV_USE_CLIB_MALLOC=y
+CONFIG_LV_USE_MSGBOX=n
+CONFIG_LV_USE_SPINNER=n
+CONFIG_LV_USE_WIN=n
+CONFIG_LV_USE_SNAPSHOT=y
+CONFIG_FREERTOS_HZ=1000
+CONFIG_FREERTOS_TASK_NOTIFICATION_ARRAY_ENTRIES=2
+CONFIG_FREERTOS_SMP=n
+CONFIG_FREERTOS_UNICORE=n
+CONFIG_FREERTOS_TIMER_TASK_STACK_DEPTH=5120
+CONFIG_FREERTOS_USE_TRACE_FACILITY=y
+CONFIG_FATFS_LFN_HEAP=y
+CONFIG_FATFS_VOLUME_COUNT=3
+CONFIG_FATFS_SECTOR_512=y
+CONFIG_WL_SECTOR_SIZE_512=y
+CONFIG_WL_SECTOR_SIZE=512
+CONFIG_WL_SECTOR_MODE_SAFE=y
+CONFIG_WL_SECTOR_MODE=1
+CONFIG_MBEDTLS_SSL_PROTO_TLS1_3=y
+
+# Hardware: Main
+CONFIG_PARTITION_TABLE_CUSTOM=y
+CONFIG_PARTITION_TABLE_CUSTOM_FILENAME="partitions-16mb.csv"
+CONFIG_PARTITION_TABLE_FILENAME="partitions-16mb.csv"
+CONFIG_TT_BOARD_LILYGO_TDISPLAY=y
+CONFIG_TT_BOARD_NAME="LilyGo T-Display"
+CONFIG_TT_BOARD_ID="lilygo-tdisplay"
+CONFIG_IDF_EXPERIMENTAL_FEATURES=y
+CONFIG_IDF_TARGET="esp32"
+CONFIG_ESP_DEFAULT_CPU_FREQ_MHZ_240=y
+CONFIG_ESP32_DEFAULT_CPU_FREQ_240=y
+CONFIG_ESPTOOLPY_FLASHSIZE_16MB=y
+CONFIG_ESPTOOLPY_FLASHFREQ_80M=y
+CONFIG_FLASHMODE_QIO=y
+# LVGL
+CONFIG_LV_DISP_DEF_REFR_PERIOD=10
+CONFIG_LV_DPI_DEF=186
+CONFIG_LV_THEME_DEFAULT_DARK=y
+# Fix for IRAM
+CONFIG_FREERTOS_PLACE_FUNCTIONS_INTO_FLASH=y
+CONFIG_FREERTOS_PLACE_SNAPSHOT_FUNS_INTO_FLASH=y
+CONFIG_HEAP_PLACE_FUNCTION_INTO_FLASH=y
+CONFIG_RINGBUF_PLACE_FUNCTIONS_INTO_FLASH=y