1. add lock function for every function

2. modify some function for crypto

components/mbedtls/port/multi_thread.c

@@ -0,0 +1,53 @@
+#include "multi_thread.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/semphr.h"
+
+static xSemaphoreHandle multi_thread_mutex[MUTEX_MAX_NUM];
+static int multi_thread_sig[MUTEX_MAX_NUM];
+
+int multi_thread_init(void)
+{
+	int i;
+
+	for (i = 0; i < MUTEX_MAX_NUM; i++) {
+		multi_thread_mutex[i] = xSemaphoreCreateMutex();
+		if (!multi_thread_mutex[i]) {
+			goto failed1;
+		}
+		multi_thread_sig[i] = 0;
+	}
+
+	return 0;
+
+failed1:
+	for (i--; i >= 0; i--)
+		vQueueDelete(multi_thread_mutex[i]);
+
+	return -1;
+}
+
+void multi_thread_lock(unsigned int num)
+{
+	xSemaphoreTake(multi_thread_mutex[num], portMAX_DELAY);
+}
+
+void multi_thread_unlock(unsigned int num)
+{
+	xSemaphoreGive(multi_thread_mutex[num]);
+}
+
+void multi_thread_take(unsigned int num)
+{
+	multi_thread_sig[num]++;
+}
+
+void multi_thread_give(unsigned int num)
+{
+	multi_thread_sig[num]--;
+}
+
+bool multi_thread_is_used(num)
+{
+	return (multi_thread_sig[num] != 0) ? true : false;
+}
+