esp_wifi: fix some WiFi bugs

Fix following WiFi bugs:
1. Make smartconfig thread-safe
2. Fix WiFi stop/deinit memory leak
3. Refactor for WiFi init/deinit/ioctl etc
4. Add declaration for esp_wifi_internal_ioctl()
5. Fix the bug that WiFi stop leads to task watchdog

components/esp_wifi/include/esp_private/wifi.h

@@ -307,6 +307,18 @@ esp_err_t esp_wifi_internal_set_log_mod(wifi_log_module_t module, uint32_t submo
   */
 esp_err_t esp_wifi_internal_get_log(wifi_log_level_t *log_level, uint32_t *log_mod);
 
+/**
+  * @brief     A general API to set/get WiFi internal configuration, it's for debug only
+  *
+  * @param     cmd : ioctl command type
+  * @param     cfg : configuration for the command
+  *
+  * @return    
+  *    - ESP_OK: succeed
+  *    - others: failed
+  */
+esp_err_t esp_wifi_internal_ioctl(int cmd, wifi_ioctl_config_t *cfg);
+
 #ifdef __cplusplus
 }
 #endif

components/esp_wifi/include/esp_private/wifi_os_adapter.h

@@ -44,6 +44,7 @@ typedef struct {
     void (*_semphr_delete)(void *semphr);
     int32_t (*_semphr_take)(void *semphr, uint32_t block_time_tick);
     int32_t (*_semphr_give)(void *semphr);
+    void *(*_wifi_thread_semphr_get)(void);
     void *(*_mutex_create)(void);
     void *(*_recursive_mutex_create)(void);
     void (*_mutex_delete)(void *mutex);

components/esp_wifi/include/esp_wifi_types.h

@@ -582,7 +582,33 @@ typedef struct {
     uint8_t mac[6];           /**< MAC address of the station which send probe request */
 } wifi_event_ap_probe_req_rx_t;
 
+/**
+  * @brief WiFi ioctl command type
+  *
+  */
+typedef enum {
+    WIFI_IOCTL_SET_STA_HT2040_COEX = 1, /**< Set the configuration of STA's HT2040 coexist management */
+    WIFI_IOCTL_GET_STA_HT2040_COEX,     /**< Get the configuration of STA's HT2040 coexist management */
+    WIFI_IOCTL_MAX,
+} wifi_ioctl_cmd_t;
 
+/**
+ * @brief Configuration for STA's HT2040 coexist management
+ *
+ */
+typedef struct {
+    int enable;                         /**< Indicate whether STA's HT2040 coexist management is enabled or not */
+} wifi_ht2040_coex_t;
+
+/**
+  * @brief Configuration for WiFi ioctl
+  *
+  */
+typedef struct {
+    union {
+        wifi_ht2040_coex_t ht2040_coex; /**< Configuration of STA's HT2040 coexist management */
+    } data;                             /**< Configuration of ioctl command */
+} wifi_ioctl_config_t;
 
 #ifdef __cplusplus
 }