light sleep: dfs support for esp32c3

components/esp_pm/include/esp32c3/pm.h

@@ -0,0 +1,42 @@
+// 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.
+
+
+#pragma once
+#include <stdint.h>
+#include <stdbool.h>
+#include "esp_err.h"
+
+#include "soc/rtc.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/**
+ * @brief Power management config for ESP32C3
+ *
+ * Pass a pointer to this structure as an argument to esp_pm_configure function.
+ */
+typedef struct {
+    int max_freq_mhz;   /*!< Maximum CPU frequency, in MHz */
+    int min_freq_mhz;   /*!< Minimum CPU frequency to use when no locks are taken, in MHz */
+    bool light_sleep_enable;        /*!< Enter light sleep when no locks are taken */
+} esp_pm_config_esp32c3_t;
+
+
+#ifdef __cplusplus
+}
+#endif