Import Mbed OS hard-float snapshot

targets/TARGET_RENESAS/TARGET_RZ_A1XX/trng_api.c

@@ -0,0 +1,43 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2017 ARM Limited
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#if DEVICE_TRNG
+#include "trng_api.h"
+
+#if defined(TARGET_GR_LYCHEE)
+
+extern void trng_init_esp32(void);
+extern void trng_free_esp32(void);
+extern int trng_get_bytes_esp32(uint8_t *output, size_t length, size_t *output_length);
+
+void trng_init(trng_t *obj)
+{
+    trng_init_esp32();
+}
+
+void trng_free(trng_t *obj)
+{
+    trng_free_esp32();
+}
+
+int trng_get_bytes(trng_t *obj, uint8_t *output, size_t length, size_t *output_length)
+{
+    return trng_get_bytes_esp32(output, length, output_length);
+}
+#else
+#error "There is no initialization processing."
+#endif
+#endif