hal: Add initial ESP32-C3 support

From internal commit 7761d6e8

components/hal/esp32c3/hmac_hal.c

@@ -0,0 +1,83 @@
+// Copyright 2020 Espressif Systems (Shanghai) PTE LTD
+//
+// 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.
+
+#include "stdio.h"
+#include "hal/hmac_hal.h"
+#include "hal/hmac_ll.h"
+
+void hmac_hal_start(void)
+{
+    hmac_ll_wait_idle();
+    hmac_ll_start();
+}
+
+uint32_t hmac_hal_configure(hmac_hal_output_t config, uint32_t key_id)
+{
+    hmac_ll_wait_idle();
+    hmac_ll_config_output(config);
+    hmac_ll_config_hw_key_id(key_id);
+    hmac_ll_config_finish();
+    hmac_ll_wait_idle();
+
+    uint32_t conf_error = hmac_ll_config_error();
+    if (conf_error) {
+        hmac_ll_calc_finish();
+        return 1;
+    } else if (config != HMAC_OUTPUT_USER) {
+        // In "downstream" mode, this will be the last hmac operation. Make sure HMAC is ready for
+        // the other peripheral.
+        hmac_ll_wait_idle();
+    }
+
+    return 0;
+}
+
+void hmac_hal_write_one_block_512(const void *block)
+{
+    hmac_ll_wait_idle();
+    hmac_ll_write_block_512(block);
+    hmac_ll_wait_idle();
+    hmac_ll_msg_one_block();
+}
+
+void hmac_hal_write_block_512(const void *block)
+{
+    hmac_ll_wait_idle();
+    hmac_ll_write_block_512(block);
+}
+
+void hmac_hal_next_block_padding(void)
+{
+    hmac_ll_wait_idle();
+    hmac_ll_msg_padding();
+}
+
+void hmac_hal_next_block_normal(void)
+{
+    hmac_ll_wait_idle();
+    hmac_ll_msg_continue();
+}
+
+void hmac_hal_read_result_256(void *result)
+{
+    hmac_ll_wait_idle();
+    hmac_ll_read_result_256(result);
+    hmac_ll_calc_finish();
+}
+
+void hmac_hal_clean(void)
+{
+    hmac_ll_wait_idle();
+    hmac_ll_clean();
+}