New kernel drivers, filesystem API, and more (#513)

* **New Features**
  * BMI270 6-axis IMU driver added; new unified filesystem abstraction for mounted filesystems.
  * Public Wi‑Fi API surface (no implementation yet)
  * SDMMC driver added (kernel drive$)
  * expanded GPIO interrupt/callback support
* **Improvements**
  * M5Stack Tab5: revamped GPIO/power initialization and IMU integration.
  * LVGL updates including device fontSize configuration.
  * Updated all code related to SD card device/fs handling
  * Rename LilyGO T-HMI S3 to LilyGO T-HMI
* **Bug Fixes**
  * Simplified and consolidated SD card handling and mount discovery.

Tactility/Source/app/files/FilesApp.cpp

@@ -2,7 +2,6 @@
 #include <Tactility/app/files/State.h>
 #include <Tactility/app/AppContext.h>
 
-#include <Tactility/Assets.h>
 #include <Tactility/service/loader/Loader.h>
 
 #include <memory>

Tactility/Source/app/files/State.cpp

@@ -51,7 +51,7 @@ bool State::setEntriesForPath(const std::string& path) {
     bool get_mount_points = (kernel::getPlatform() == kernel::PlatformEsp) && (path == "/");
     if (get_mount_points) {
         LOGGER.info("Setting custom root");
-        dir_entries = file::getMountPoints();
+        dir_entries = file::getFileSystemDirents();
         current_path = path;
         selected_child_entry = "";
         action = ActionNone;

Tactility/Source/app/fileselection/State.cpp

@@ -6,10 +6,11 @@
 #include <Tactility/MountPoints.h>
 #include <Tactility/kernel/Platform.h>
 
+#include <Tactility/LogMessages.h>
 #include <cstring>
+#include <dirent.h>
 #include <unistd.h>
 #include <vector>
-#include <dirent.h>
 
 namespace tt::app::fileselection {
 
@@ -36,6 +37,12 @@ std::string State::getSelectedChildPath() const {
 bool State::setEntriesForPath(const std::string& path) {
     LOGGER.info("Changing path: {} -> {}", current_path, path);
 
+    auto lock = mutex.asScopedLock();
+    if (!lock.lock(100)) {
+        LOGGER.error(LOG_MESSAGE_MUTEX_LOCK_FAILED_FMT, "setEntriesForPath");
+        return false;
+    }
+
     /**
      * ESP32 does not have a root directory, so we have to create it manually.
      * We'll add the NVS Flash partitions and the binding for the sdcard.
@@ -43,7 +50,7 @@ bool State::setEntriesForPath(const std::string& path) {
     bool show_custom_root = (kernel::getPlatform() == kernel::PlatformEsp) && (path == "/");
     if (show_custom_root) {
         LOGGER.info("Setting custom root");
-        dir_entries = file::getMountPoints();
+        dir_entries = file::getFileSystemDirents();
         current_path = path;
         selected_child_entry = "";
         return true;

Tactility/Source/app/screenshot/Screenshot.cpp

@@ -1,18 +1,18 @@
 #include <Tactility/Tactility.h>
 #include <Tactility/TactilityConfig.h>
 
-
 #if TT_FEATURE_SCREENSHOT_ENABLED
 
 #include <Tactility/app/App.h>
 #include <Tactility/app/AppManifest.h>
-#include <Tactility/hal/sdcard/SdCardDevice.h>
 #include <Tactility/kernel/Platform.h>
 #include <Tactility/Logger.h>
 #include <Tactility/lvgl/Lvgl.h>
 #include <Tactility/lvgl/LvglSync.h>
 #include <Tactility/lvgl/Toolbar.h>
 #include <Tactility/service/screenshot/Screenshot.h>
+
+#include <Tactility/Paths.h>
 #include <Tactility/Timer.h>
 
 #include <tactility/lvgl_icon_shared.h>
@@ -204,12 +204,9 @@ void ScreenshotApp::createFilePathWidgets(lv_obj_t* parent) {
     lv_textarea_set_one_line(pathTextArea, true);
     lv_obj_set_flex_grow(pathTextArea, 1);
     if (kernel::getPlatform() == kernel::PlatformEsp) {
-        auto sdcard_devices = tt::hal::findDevices<tt::hal::sdcard::SdCardDevice>(tt::hal::Device::Type::SdCard);
-        if (sdcard_devices.size() > 1) {
-            LOGGER.warn("Found multiple SD card devices - picking first");
-        }
-        if (!sdcard_devices.empty() && sdcard_devices.front()->isMounted()) {
-            std::string lvgl_mount_path = lvgl::PATH_PREFIX + sdcard_devices.front()->getMountPath();
+        std::string sdcard_path;
+        if (findFirstMountedSdCardPath(sdcard_path)) {
+            std::string lvgl_mount_path = lvgl::PATH_PREFIX + sdcard_path + "/screenshots";
             lv_textarea_set_text(pathTextArea, lvgl_mount_path.c_str());
         } else {
             lv_textarea_set_text(pathTextArea, "Error: no SD card");

Tactility/Source/app/systeminfo/SystemInfo.cpp

@@ -1,10 +1,10 @@
 #include <Tactility/TactilityConfig.h>
 #include <Tactility/lvgl/LvglSync.h>
 #include <Tactility/lvgl/Toolbar.h>
-#include <Tactility/hal/sdcard/SdCardDevice.h>
 #include <Tactility/Tactility.h>
 #include <Tactility/Timer.h>
 
+#include <Tactility/Paths.h>
 #include <algorithm>
 #include <cstring>
 #include <format>
@@ -321,7 +321,6 @@ class SystemInfoApp final : public App {
 
     bool hasExternalMem = false;
     bool hasDataStorage = false;
-    bool hasSdcardStorage = false;
     bool hasSystemStorage = false;
 
     void updateMemory() {
@@ -343,14 +342,9 @@ class SystemInfoApp final : public App {
             }
         }
 
-        if (hasSdcardStorage) {
-            const auto sdcard_devices = hal::findDevices<hal::sdcard::SdCardDevice>(hal::Device::Type::SdCard);
-            for (const auto& sdcard : sdcard_devices) {
-                if (sdcard->isMounted() && esp_vfs_fat_info(sdcard->getMountPath().c_str(), &storage_total, &storage_free) == ESP_OK) {
-                    updateMemoryBar(sdcardStorageBar, storage_free, storage_total);
-                    break;  // Only update first SD card
-                }
-            }
+        std::string sdcard_path;
+        if (findFirstMountedSdCardPath(sdcard_path) && esp_vfs_fat_info(sdcard_path.c_str(), &storage_total, &storage_free) == ESP_OK) {
+            updateMemoryBar(sdcardStorageBar, storage_free, storage_total);
         }
 
         if (hasSystemStorage) {
@@ -624,13 +618,9 @@ class SystemInfoApp final : public App {
             dataStorageBar = createMemoryBar(storage_tab, file::MOUNT_POINT_DATA);
         }
 
-        const auto sdcard_devices = hal::findDevices<hal::sdcard::SdCardDevice>(hal::Device::Type::SdCard);
-        for (const auto& sdcard : sdcard_devices) {
-            if (sdcard->isMounted() && esp_vfs_fat_info(sdcard->getMountPath().c_str(), &storage_total, &storage_free) == ESP_OK) {
-                hasSdcardStorage = true;
-                sdcardStorageBar = createMemoryBar(storage_tab, sdcard->getMountPath().c_str());
-                break;  // Only show first SD card
-            }
+        std::string sdcard_path;
+        if (findFirstMountedSdCardPath(sdcard_path) && esp_vfs_fat_info(sdcard_path.c_str(), &storage_total, &storage_free) == ESP_OK) {
+            sdcardStorageBar = createMemoryBar(storage_tab, sdcard_path.c_str());
         }
 
         if (config::SHOW_SYSTEM_PARTITION) {