[GitHub] [incubator-nuttx] saramonteiro commented on a change in pull request #3882: risc-v/esp32c3: Support ESP32-C3 SHA accelerator

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saramonteiro commented on a change in pull request #3882:
URL: https://github.com/apache/incubator-nuttx/pull/3882#discussion_r651791715



##########
File path: arch/risc-v/src/esp32c3/esp32c3_sha.h
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@@ -0,0 +1,127 @@
+/****************************************************************************
+ * arch/risc-v/src/esp32c3/esp32c3_sha.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#ifndef __ARCH_RISCV_SRC_ESP32C3_ESP32C3_SHA_H
+#define __ARCH_RISCV_SRC_ESP32C3_ESP32C3_SHA_H
+
+#include <nuttx/config.h>
+#include <stdint.h>
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+enum esp32c3_sha_type_e
+{
+    ESP32C3_SHA1_1 = 0,
+    ESP32C3_SHA2_224,
+    ESP32C3_SHA2_256,
+    ESP32C3_SHA3_384,
+    ESP32C3_SHA3_512,
+    ESP32C3_SHA_TYPE_MAX
+};
+
+enum esp32c3_sha_state_e
+{
+    ESP32C3_SHA_STATE_INIT,
+    ESP32C3_SHA_STATE_IN_PROCESS
+};
+
+/**
+ * \brief          SHA-1 context structure

Review comment:
       Fix comment.
   Adjust to one line comment.




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