1. Add api ssc cmd "ap -K -a aid" to kick out connected station.

   The parameter aid followed -a is aid of the connected station. If aid is 0, kick out all of the connected stations.
2. Add block parameter to api esp_wifi_scan_start.
   If block is true, the api blocks before scan done or returns directly.

components/esp32/include/esp_event.h

@@ -48,6 +48,7 @@ typedef struct {
 typedef struct {
     uint32_t status;          /**< status of scanning APs*/
     uint8_t  number;
+    uint8_t  scan_id;
 } system_event_sta_scan_done_t;
 
 typedef struct {

components/esp32/include/esp_wifi.h

@@ -122,6 +122,10 @@ esp_err_t esp_wifi_connect(void);
 
 esp_err_t esp_wifi_disconnect(void);
 
+esp_err_t esp_wifi_clear_fast_connect(void);
+
+esp_err_t esp_wifi_kick_station(uint16_t aid);
+
 typedef struct {
     char *ssid;          /**< SSID of AP */
     uint8_t *bssid;      /**< MAC address of AP */
@@ -129,7 +133,7 @@ typedef struct {
     bool show_hidden;   /**< enable to scan AP whose SSID is hidden */
 } wifi_scan_config_t;
 
-esp_err_t esp_wifi_scan_start(wifi_scan_config_t *conf);
+esp_err_t esp_wifi_scan_start(wifi_scan_config_t *conf, bool block);
 
 esp_err_t esp_wifi_scan_stop(void);
 
@@ -230,6 +234,8 @@ esp_err_t esp_wifi_get_station_list(struct station_info **station);
 
 esp_err_t esp_wifi_free_station_list(void);
 
+esp_err_t esp_wifi_set_storage(uint8_t storage);
+
 typedef esp_err_t (*wifi_rxcb_t)(void *buffer, uint16_t len, void* eb);
 
 esp_err_t esp_wifi_reg_rxcb(wifi_interface_t ifx, wifi_rxcb_t fn);