i2c fixes + server improvements

thermo_sensor/main/ygg_lock.c

@@ -0,0 +1,40 @@
+#include "ygg_lock.h"
+#include <freertos/semphr.h>
+
+static SemaphoreHandle_t s_i2c_mutex = NULL;
+static SemaphoreHandle_t s_lvgl_mutex = NULL;
+
+void ygg_lock_init(void) {
+    if (s_i2c_mutex == NULL) {
+        s_i2c_mutex = xSemaphoreCreateMutex();
+    }
+    if (s_lvgl_mutex == NULL) {
+        s_lvgl_mutex = xSemaphoreCreateMutex();
+    }
+}
+
+bool ygg_i2c_lock_take(TickType_t timeout) {
+    if (s_i2c_mutex == NULL) {
+        return false;
+    }
+    return xSemaphoreTake(s_i2c_mutex, timeout) == pdTRUE;
+}
+
+void ygg_i2c_lock_give(void) {
+    if (s_i2c_mutex != NULL) {
+        xSemaphoreGive(s_i2c_mutex);
+    }
+}
+
+bool ygg_lvgl_lock_take(TickType_t timeout) {
+    if (s_lvgl_mutex == NULL) {
+        return false;
+    }
+    return xSemaphoreTake(s_lvgl_mutex, timeout) == pdTRUE;
+}
+
+void ygg_lvgl_lock_give(void) {
+    if (s_lvgl_mutex != NULL) {
+        xSemaphoreGive(s_lvgl_mutex);
+    }
+}