text: // Copyright 2015-2016 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 __ESP_SMARTCONFIG_H__
  #define __ESP_SMARTCONFIG_H__
  
  #include <stdint.h>
  #include <stdbool.h>
  #include "esp_err.h"
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  typedef enum {
      SC_STATUS_WAIT = 0,             /**< Waiting to start connect */
      SC_STATUS_FIND_CHANNEL,         /**< Finding target channel */
      SC_STATUS_GETTING_SSID_PSWD,    /**< Getting SSID and password of target AP */
      SC_STATUS_LINK,                 /**< Connecting to target AP */
      SC_STATUS_LINK_OVER,            /**< Connected to AP successfully */
  } smartconfig_status_t;
  
  typedef enum {
      SC_TYPE_ESPTOUCH = 0,       /**< protocol: ESPTouch */
      SC_TYPE_AIRKISS,            /**< protocol: AirKiss */
      SC_TYPE_ESPTOUCH_AIRKISS,   /**< protocol: ESPTouch and AirKiss */
  } smartconfig_type_t;
  
  /**
      @brief  The callback of SmartConfig, executed when smart-config status changed.
  
      @param  status  Status of SmartConfig:
         - SC_STATUS_GETTING_SSID_PSWD : pdata is a pointer of smartconfig_type_t, means config type.
         - SC_STATUS_LINK : pdata is a pointer to wifi_config_t.
         - SC_STATUS_LINK_OVER : pdata is a pointer of phone's IP address(4 bytes) if pdata unequal NULL.
         - otherwise : parameter void *pdata is NULL.
      @param  pdata  According to the different status have different values.
  
  */
  typedef void (*sc_callback_t)(smartconfig_status_t status, void* pdata);
  
  /**
      @brief  Get the version of SmartConfig.
  
      @return
          - SmartConfig version const char.
  */
  const char* esp_smartconfig_get_version(void);
  
  /**
      @brief     Start SmartConfig, config ESP device to connect AP. You need to broadcast information by phone APP.
                 Device sniffer special packets from the air that containing SSID and password of target AP.
  
      @attention 1. This API can be called in station or softAP-station mode.
      @attention 2. Can not call esp_smartconfig_start twice before it finish, please call
                    esp_smartconfig_stop first.
  
      @param     cb  SmartConfig callback function.
      @param     ... log  1: UART output logs; 0: UART only outputs the result.
  
      @return
          - ESP_OK: succeed
          - others: fail
  */
  esp_err_t esp_smartconfig_start(sc_callback_t cb, ...);
  
  /**
      @brief     Stop SmartConfig, free the buffer taken by esp_smartconfig_start.
  
      @attention Whether connect to AP succeed or not, this API should be called to free
                 memory taken by smartconfig_start.
  
      @return
          - ESP_OK: succeed
          - others: fail
  */
  esp_err_t esp_smartconfig_stop(void);
  
  /**
      @brief     Set timeout of SmartConfig process.
  
      @attention Timing starts from SC_STATUS_FIND_CHANNEL status. SmartConfig will restart if timeout.
  
      @param     time_s  range 15s~255s, offset:45s.
  
      @return
          - ESP_OK: succeed
          - others: fail
  */
  esp_err_t esp_esptouch_set_timeout(uint8_t time_s);
  
  /**
      @brief     Set protocol type of SmartConfig.
  
      @attention If users need to set the SmartConfig type, please set it before calling
                 esp_smartconfig_start.
  
      @param     type  Choose from the smartconfig_type_t.
  
      @return
          - ESP_OK: succeed
          - others: fail
  */
  esp_err_t esp_smartconfig_set_type(smartconfig_type_t type);
  
  /**
      @brief     Set mode of SmartConfig. default normal mode.
  
      @attention 1. Please call it before API esp_smartconfig_start.
      @attention 2. Fast mode have corresponding APP(phone).
      @attention 3. Two mode is compatible.
  
      @param     enable  false-disable(default); true-enable;
  
      @return
          - ESP_OK: succeed
          - others: fail
  */
  esp_err_t esp_smartconfig_fast_mode(bool enable);
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif
  