Implement UI scaling and more (#501)

**New Features** * Runtime font accessors and new symbol fonts for text, launcher, statusbar, and shared icons. * Added font height base setting to device.properties * Text fonts now have 3 sizes: small, default, large **Improvements** * Renamed `UiScale` to `UiDensity` * Statusbar, toolbar and many UI components now compute heights and spacing from fonts/density. * SSD1306 initialization sequence refined for more stable startup. * Multiple image assets replaced by symbol-font rendering. * Many layout improvements related to density, font scaling and icon scaling * Updated folder name capitalization for newer style
2026-02-15 01:41:47 +01:00
parent 72c9b2b113
commit 9a11e6f47b
264 changed files with 5923 additions and 494 deletions
@@ -0,0 +1,77 @@
+#include "tactility/dts.h"
+#include <tactility/kernel_init.h>
+#include <tactility/log.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define TAG "kernel"
+
+extern const struct ModuleSymbol KERNEL_SYMBOLS[];
+
+static error_t start() {
+    extern Driver root_driver;
+    if (driver_construct_add(&root_driver) != ERROR_NONE) return ERROR_RESOURCE;
+    return ERROR_NONE;
+}
+
+static error_t stop() {
+    return ERROR_NONE;
+}
+
+struct Module root_module = {
+    .name = "kernel",
+    .start = start,
+    .stop = stop,
+    .symbols = (const struct ModuleSymbol*)KERNEL_SYMBOLS,
+    .internal = nullptr
+};
+
+error_t kernel_init(struct Module* platform_module, struct Module* device_module, struct DtsDevice dts_devices[]) {
+    LOG_I(TAG, "init");
+
+    if (module_construct_add_start(&root_module) != ERROR_NONE) {
+        LOG_E(TAG, "root module init failed");
+        return ERROR_RESOURCE;
+    }
+
+    if (module_construct_add_start(platform_module) != ERROR_NONE) {
+        LOG_E(TAG, "platform module init failed");
+        return ERROR_RESOURCE;
+    }
+
+    if (device_module != nullptr) {
+        if (module_construct_add_start(device_module) != ERROR_NONE) {
+            LOG_E(TAG, "device module init failed");
+            return ERROR_RESOURCE;
+        }
+    }
+
+    if (dts_devices) {
+        DtsDevice* dts_device = dts_devices;
+        while (dts_device->device != nullptr) {
+            if (dts_device->status == DTS_DEVICE_STATUS_OKAY) {
+                if (device_construct_add_start(dts_device->device, dts_device->compatible) != ERROR_NONE) {
+                    LOG_E(TAG, "kernel_init failed to construct+add+start device: %s (%s)", dts_device->device->name, dts_device->compatible);
+                    return ERROR_RESOURCE;
+                }
+            } else if (dts_device->status == DTS_DEVICE_STATUS_DISABLED) {
+                if (device_construct_add(dts_device->device, dts_device->compatible) != ERROR_NONE) {
+                    LOG_E(TAG, "kernel_init failed to construct+add device: %s (%s)", dts_device->device->name, dts_device->compatible);
+                    return ERROR_RESOURCE;
+                }
+            } else {
+                check(false, "DTS status not implemented");
+            }
+            dts_device++;
+        }
+    }
+
+    LOG_I(TAG, "init done");
+    return ERROR_NONE;
+}
+
+#ifdef __cplusplus
+}
+#endif