component/esp32 : clear some minor thingsw about PM and coexistence

components/esp32/coexist_internal.h

@@ -0,0 +1,77 @@
+// Copyright 2018-2018 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.
+
+#ifndef __COEXIST_INTERNAL_H__
+#define __COEXIST_INTERNAL_H__
+
+#include <stdbool.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum {
+    COEX_PREFER_WIFI = 0,
+    COEX_PREFER_BT,
+    COEX_PREFER_BALANCE,
+    COEX_PREFER_NUM,
+} coex_prefer_t;
+
+/**
+ * @brief Init software coexist
+ *        extern function for internal use.
+ *
+ * @return Init ok or failed.
+ */
+esp_err_t coex_init(void);
+
+/**
+ * @brief De-init software coexist
+ *        extern function for internal use.
+ */
+void coex_deinit(void);
+
+/**
+ * @brief Pause software coexist
+ *        extern function for internal use.
+ */
+void coex_pause(void);
+
+/**
+ * @brief Resume software coexist
+ *        extern function for internal use.
+ */
+void coex_resume(void);
+
+/**
+ * @brief Get software coexist version string
+ *        extern function for internal use.
+ * @return : version string
+ */
+const char *coex_version_get(void);
+
+/**
+ * @brief Coexist performance preference set from libbt.a
+ *        extern function for internal use.
+ *
+ *  @param prefer : the prefer enumeration value
+ *  @return : ESP_OK - success, other - failed
+ */
+esp_err_t coex_preference_set(coex_prefer_t prefer);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __COEXIST_INTERNAL_H__ */