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OVMS3-idf/components/esp32/include/esp_wifi.h
Xia Xiaotian ad555d68d3 esp32/lwip: add check sleep 
1. fix tw8911 sleep in scan leads to auth frame malloc fail.

2. fix tw8913 pm state transfer wrong leads to wdt.

3. make some comments for modem sleep and wpa2 enterprise.

4. removd duplicated debug option ESP_THREAD_SAFE_DEBUG
2016-12-01 13:34:36 +08:00

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// 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.
/* Notes about WiFi Programming
*
* The esp32 WiFi programming model can be depicted as following picture:
*
*
* default handler user handler
* ------------- --------------- ---------------
* | | event | | callback or | |
* | tcpip | ---------> | event | ----------> | application |
* | stack | | task | event | task |
* |-----------| |-------------| |-------------|
* /|\ |
* | |
* event | |
* | |
* | |
* --------------- |
* | | |
* | WiFi Driver |/__________________|
* | |\ API call
* | |
* |-------------|
*
* The WiFi driver can be consider as black box, it knows nothing about the high layer code, such as
* TCPIP stack, application task, event task etc, all it can do is to receive API call from high layer
* or post event queue to a specified Queue, which is initialized by API esp_wifi_init().
*
* The event task is a daemon task, which receives events from WiFi driver or from other subsystem, such
* as TCPIP stack, event task will call the default callback function on receiving the event. For example,
* on receiving event SYSTEM_EVENT_STA_CONNECTED, it will call tcpip_adapter_start() to start the DHCP
* client in it's default handler.
*
* Application can register it's own event callback function by API esp_event_init, then the application callback
* function will be called after the default callback. Also, if application doesn't want to execute the callback
* in the event task, what it needs to do is to post the related event to application task in the application callback function.
*
* The application task (code) generally mixes all these thing together, it calls APIs to init the system/WiFi and
* handle the events when necessary.
*
*/
#ifndef __ESP_WIFI_H__
#define __ESP_WIFI_H__
#include <stdint.h>
#include <stdbool.h>
#include "freertos/FreeRTOS.h"
#include "freertos/queue.h"
#include "rom/queue.h"
#include "esp_err.h"
#include "esp_wifi_types.h"
#include "esp_event.h"
#ifdef __cplusplus
extern "C" {
#endif
#define ESP_ERR_WIFI_OK ESP_OK /*!< No error */
#define ESP_ERR_WIFI_FAIL ESP_FAIL /*!< General fail code */
#define ESP_ERR_WIFI_NO_MEM ESP_ERR_NO_MEM /*!< Out of memory */
#define ESP_ERR_WIFI_ARG ESP_ERR_INVALID_ARG /*!< Invalid argument */
#define ESP_ERR_WIFI_NOT_SUPPORT ESP_ERR_NOT_SUPPORTED /*!< Indicates that API is not supported yet */
#define ESP_ERR_WIFI_NOT_INIT (ESP_ERR_WIFI_BASE + 1) /*!< WiFi driver is not installed by esp_wifi_init */
#define ESP_ERR_WIFI_NOT_START (ESP_ERR_WIFI_BASE + 2) /*!< WiFi driver is not started by esp_wifi_start */
#define ESP_ERR_WIFI_IF (ESP_ERR_WIFI_BASE + 3) /*!< WiFi interface error */
#define ESP_ERR_WIFI_MODE (ESP_ERR_WIFI_BASE + 4) /*!< WiFi mode error */
#define ESP_ERR_WIFI_STATE (ESP_ERR_WIFI_BASE + 5) /*!< WiFi internal state error */
#define ESP_ERR_WIFI_CONN (ESP_ERR_WIFI_BASE + 6) /*!< WiFi internal control block of station or soft-AP error */
#define ESP_ERR_WIFI_NVS (ESP_ERR_WIFI_BASE + 7) /*!< WiFi internal NVS module error */
#define ESP_ERR_WIFI_MAC (ESP_ERR_WIFI_BASE + 8) /*!< MAC address is invalid */
#define ESP_ERR_WIFI_SSID (ESP_ERR_WIFI_BASE + 9) /*!< SSID is invalid */
#define ESP_ERR_WIFI_PASSWORD (ESP_ERR_WIFI_BASE + 10) /*!< Passord is invalid */
#define ESP_ERR_WIFI_TIMEOUT (ESP_ERR_WIFI_BASE + 11) /*!< Timeout error */
#define ESP_ERR_WIFI_WAKE_FAIL (ESP_ERR_WIFI_BASE + 12) /*!< WiFi is in sleep state(RF closed) and wakeup fail */
/**
* @brief WiFi stack configuration parameters passed to esp_wifi_init call.
*/
typedef struct {
system_event_handler_t event_handler; /**< WiFi event handler */
} wifi_init_config_t;
#define WIFI_INIT_CONFIG_DEFAULT() { \
.event_handler = &esp_event_send, \
};
/**
* @brief Init WiFi
* Alloc resource for WiFi driver, such as WiFi control structure, RX/TX buffer,
* WiFi NVS structure etc, this WiFi also start WiFi task
*
* @attention 1. This API must be called before all other WiFi API can be called
* @attention 2. Generally we should init event_q in *config, WiFi driver will post the event
* to this queue when event happens, such as, when station connects to WiFi, WiFi driver
* will post station connected event to this queue. If the queue is not initialized, WiFi
* will not post any events
*
* @param config provide WiFi init configuration
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NO_MEM: out of memory
* - others: refer to error code esp_err.h
*/
esp_err_t esp_wifi_init(wifi_init_config_t *config);
/**
* @brief Deinit WiFi
* Free all resource allocated in esp_wifi_init and stop WiFi task
*
* @attention 1. This API should be called if you want to remove WiFi driver from the system
*
* @return ESP_OK: succeed
*/
esp_err_t esp_wifi_deinit(void);
/**
* @brief Set the WiFi operating mode
*
* Set the WiFi operating mode as station, soft-AP or station+soft-AP,
* The default mode is soft-AP mode.
*
* @param mode WiFi operating mode
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
* - others: refer to error code in esp_err.h
*/
esp_err_t esp_wifi_set_mode(wifi_mode_t mode);
/**
* @brief Get current operating mode of WiFi
*
* @param[out] mode store current WiFi mode
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
*/
esp_err_t esp_wifi_get_mode(wifi_mode_t *mode);
/**
* @brief Start WiFi according to current configuration
* If mode is WIFI_MODE_STA, it create station control block and start station
* If mode is WIFI_MODE_AP, it create soft-AP control block and start soft-AP
* If mode is WIFI_MODE_APSTA, it create soft-AP and station control block and start soft-AP and station
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
* - ESP_ERR_WIFI_NO_MEM: out of memory
* - ESP_ERR_WIFI_CONN: WiFi internal error, station or soft-AP control block wrong
* - ESP_ERR_WIFI_FAIL: other WiFi internal errors
*/
esp_err_t esp_wifi_start(void);
/**
* @brief Stop WiFi
* If mode is WIFI_MODE_STA, it stop station and free station control block
* If mode is WIFI_MODE_AP, it stop soft-AP and free soft-AP control block
* If mode is WIFI_MODE_APSTA, it stop station/soft-AP and free station/soft-AP control block
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
*/
esp_err_t esp_wifi_stop(void);
/**
* @brief Restore WiFi stack persistent settings to default values
*
* This function will reset settings made using the following APIs:
* - esp_wifi_get_auto_connect,
* - esp_wifi_set_protocol,
* - esp_wifi_set_config related
* - esp_wifi_set_mode
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
*/
esp_err_t esp_wifi_restore(void);
/**
* @brief Connect the ESP32 WiFi station to the AP.
*
* @attention 1. This API only impact WIFI_MODE_STA or WIFI_MODE_APSTA mode
* @attention 2. If the ESP32 is connected to an AP, call esp_wifi_disconnect to disconnect.
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_NOT_START: WiFi is not started by esp_wifi_start
* - ESP_ERR_WIFI_CONN: WiFi internal error, station or soft-AP control block wrong
* - ESP_ERR_WIFI_SSID: SSID of AP which station connects is invalid
*/
esp_err_t esp_wifi_connect(void);
/**
* @brief Disconnect the ESP32 WiFi station from the AP.
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_NOT_START: WiFi is not started by esp_wifi_start
* - ESP_ERR_WIFI_FAIL: other WiFi internal errors
*/
esp_err_t esp_wifi_disconnect(void);
/**
* @brief Currently this API is just an stub API
*
* @return
* - ESP_OK: succeed
* - others: fail
*/
esp_err_t esp_wifi_clear_fast_connect(void);
/**
* @brief deauthenticate all stations or associated id equals to aid
*
* @param aid when aid is 0, deauthenticate all stations, otherwise deauthenticate station whose associated id is aid
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_NOT_START: WiFi is not started by esp_wifi_start
* - ESP_ERR_WIFI_ARG: invalid argument
* - ESP_ERR_WIFI_MODE: WiFi mode is wrong
*/
esp_err_t esp_wifi_deauth_sta(uint16_t aid);
/**
* @brief Scan all available APs.
*
* @attention If this API is called, the found APs are stored in WiFi driver dynamic allocated memory and the
* will be freed in esp_wifi_get_ap_list, so generally, call esp_wifi_get_ap_list to cause
* the memory to be freed once the scan is done
*
* @param config configuration of scanning
* @param block if block is true, this API will block the caller until the scan is done, otherwise
* it will return immediately
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_NOT_START: WiFi is not started by esp_wifi_start
* - ESP_ERR_WIFI_TIMEOUT: blocking scan is timeout
* - others: refer to error code in esp_err.h
*/
esp_err_t esp_wifi_scan_start(wifi_scan_config_t *config, bool block);
/**
* @brief Stop the scan in process
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_NOT_START: WiFi is not started by esp_wifi_start
*/
esp_err_t esp_wifi_scan_stop(void);
/**
* @brief Get number of APs found in last scan
*
* @param[out] number store number of APIs found in last scan
*
* @attention This API can only be called when the scan is completed, otherwise it may get wrong value.
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_NOT_START: WiFi is not started by esp_wifi_start
* - ESP_ERR_WIFI_ARG: invalid argument
*/
esp_err_t esp_wifi_scan_get_ap_num(uint16_t *number);
/**
* @brief Get AP list found in last scan
*
* @param[inout] number As input param, it stores max AP number ap_records can hold.
* As output param, it receives the actual AP number this API returns.
* @param ap_records wifi_ap_record_t array to hold the found APs
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_NOT_START: WiFi is not started by esp_wifi_start
* - ESP_ERR_WIFI_ARG: invalid argument
* - ESP_ERR_WIFI_NO_MEM: out of memory
*/
esp_err_t esp_wifi_scan_get_ap_records(uint16_t *number, wifi_ap_record_t *ap_records);
/**
* @brief Get information of AP which the ESP32 station is associated with
*
* @param ap_info the wifi_ap_record_t to hold AP information
*
* @return
* - ESP_OK: succeed
* - others: fail
*/
esp_err_t esp_wifi_sta_get_ap_info(wifi_ap_record_t *ap_info);
/**
* @brief Set current power save type
*
* @attention Default power save type is WIFI_PS_NONE.
*
* @param type power save type
*
* @return ESP_ERR_WIFI_NOT_SUPPORT: not supported yet
*/
esp_err_t esp_wifi_set_ps(wifi_ps_type_t type);
/**
* @brief Get current power save type
*
* @attention Default power save type is WIFI_PS_NONE.
*
* @param[out] type: store current power save type
*
* @return ESP_ERR_WIFI_NOT_SUPPORT: not supported yet
*/
esp_err_t esp_wifi_get_ps(wifi_ps_type_t *type);
/**
* @brief Set protocol type of specified interface
* The default protocol is (WIFI_PROTOCOL_11B|WIFI_PROTOCOL_11G|WIFI_PROTOCOL_11N)
*
* @attention Currently we only support 802.11b or 802.11bg or 802.11bgn mode
*
* @param ifx interfaces
* @param protocol_bitmap WiFi protocol bitmap
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_IF: invalid interface
* - others: refer to error codes in esp_err.h
*/
esp_err_t esp_wifi_set_protocol(wifi_interface_t ifx, uint8_t protocol_bitmap);
/**
* @brief Get the current protocol bitmap of the specified interface
*
* @param ifx interface
* @param[out] protocol_bitmap store current WiFi protocol bitmap of interface ifx
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_IF: invalid interface
* - ESP_ERR_WIFI_ARG: invalid argument
* - others: refer to error codes in esp_err.h
*/
esp_err_t esp_wifi_get_protocol(wifi_interface_t ifx, uint8_t *protocol_bitmap);
/**
* @brief Set the bandwidth of ESP32 specified interface
*
* @attention 1. API return false if try to configure an interface that is not enabled
* @attention 2. WIFI_BW_HT40 is supported only when the interface support 11N
*
* @param ifx interface to be configured
* @param bw bandwidth
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_IF: invalid interface
* - ESP_ERR_WIFI_ARG: invalid argument
* - others: refer to error codes in esp_err.h
*/
esp_err_t esp_wifi_set_bandwidth(wifi_interface_t ifx, wifi_bandwidth_t bw);
/**
* @brief Get the bandwidth of ESP32 specified interface
*
* @attention 1. API return false if try to get a interface that is not enable
*
* @param ifx interface to be configured
* @param[out] bw store bandwidth of interface ifx
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_IF: invalid interface
* - ESP_ERR_WIFI_ARG: invalid argument
*/
esp_err_t esp_wifi_get_bandwidth(wifi_interface_t ifx, wifi_bandwidth_t *bw);
/**
* @brief Set primary/secondary channel of ESP32
*
* @attention 1. This is a special API for sniffer
*
* @param primary for HT20, primary is the channel number, for HT40, primary is the primary channel
* @param second for HT20, second is ignored, for HT40, second is the second channel
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_IF: invalid interface
* - ESP_ERR_WIFI_ARG: invalid argument
*/
esp_err_t esp_wifi_set_channel(uint8_t primary, wifi_second_chan_t second);
/**
* @brief Get the primary/secondary channel of ESP32
*
* @attention 1. API return false if try to get a interface that is not enable
*
* @param primary store current primary channel
* @param[out] second store current second channel
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
*/
esp_err_t esp_wifi_get_channel(uint8_t *primary, wifi_second_chan_t *second);
/**
* @brief Set country code
* The default value is WIFI_COUNTRY_CN
*
* @param country country type
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
* - others: refer to error code in esp_err.h
*/
esp_err_t esp_wifi_set_country(wifi_country_t country);
/**
* @brief Get country code
*
* @param country store current country
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
*/
esp_err_t esp_wifi_get_country(wifi_country_t *country);
/**
* @brief Set MAC address of the ESP32 WiFi station or the soft-AP interface.
*
* @attention 1. This API can only be called when the interface is disabled
* @attention 2. ESP32 soft-AP and station have different MAC addresses, do not set them to be the same.
* @attention 3. The bit 0 of the first byte of ESP32 MAC address can not be 1. For example, the MAC address
* can set to be "1a:XX:XX:XX:XX:XX", but can not be "15:XX:XX:XX:XX:XX".
*
* @param ifx interface
* @param mac the MAC address
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
* - ESP_ERR_WIFI_IF: invalid interface
* - ESP_ERR_WIFI_MAC: invalid mac address
* - ESP_ERR_WIFI_MODE: WiFi mode is wrong
* - others: refer to error codes in esp_err.h
*/
esp_err_t esp_wifi_set_mac(wifi_interface_t ifx, uint8_t mac[6]);
/**
* @brief Get mac of specified interface
*
* @param ifx interface
* @param[out] mac store mac of the interface ifx
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
* - ESP_ERR_WIFI_IF: invalid interface
*/
esp_err_t esp_wifi_get_mac(wifi_interface_t ifx, uint8_t mac[6]);
/**
* @brief The RX callback function in the promiscuous mode.
*
* Each time a packet is received, the callback function will be called.
*
* @param buf the data received
* @param len data length
*
* @return none
*/
typedef void (* wifi_promiscuous_cb_t)(void *buf, uint16_t len);
/**
* @brief Register the RX callback function in the promiscuous mode.
*
* Each time a packet is received, the registered callback function will be called.
*
* @param cb callback
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
*/
esp_err_t esp_wifi_set_promiscuous_rx_cb(wifi_promiscuous_cb_t cb);
/**
* @brief Enable the promiscuous mode.
*
* @param en false - disable, true - enable
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
*/
esp_err_t esp_wifi_set_promiscuous(bool en);
/**
* @brief Get the promiscuous mode.
*
* @param[out] en store the current status of promiscuous mode
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
*/
esp_err_t esp_wifi_get_promiscuous(bool *en);
/**
* @brief Set the configuration of the ESP32 STA or AP
*
* @attention 1. This API can be called only when specified interface is enabled, otherwise, API fail
* @attention 2. For station configuration, bssid_set needs to be 0; and it needs to be 1 only when users need to check the MAC address of the AP.
* @attention 3. ESP32 is limited to only one channel, so when in the soft-AP+station mode, the soft-AP will adjust its channel automatically to be the same as
* the channel of the ESP32 station.
*
* @param ifx interface
* @param conf station or soft-AP configuration
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
* - ESP_ERR_WIFI_IF: invalid interface
* - ESP_ERR_WIFI_MODE: invalid mode
* - ESP_ERR_WIFI_PASSWORD: invalid password
* - ESP_ERR_WIFI_NVS: WiFi internal NVS error
* - others: refer to the erro code in esp_err.h
*/
esp_err_t esp_wifi_set_config(wifi_interface_t ifx, wifi_config_t *conf);
/**
* @brief Get configuration of specified interface
*
* @param ifx interface
* @param[out] conf station or soft-AP configuration
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
* - ESP_ERR_WIFI_IF: invalid interface
*/
esp_err_t esp_wifi_get_config(wifi_interface_t ifx, wifi_config_t *conf);
/**
* @brief Get STAs associated with soft-AP
*
* @attention SSC only API
*
* @param[out] sta station list
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
* - ESP_ERR_WIFI_MODE: WiFi mode is wrong
* - ESP_ERR_WIFI_CONN: WiFi internal error, the station/soft-AP control block is invalid
*/
esp_err_t esp_wifi_ap_get_sta_list(wifi_sta_list_t *sta);
/**
* @brief Set the WiFi API configuration storage type
*
* @attention 1. The default value is WIFI_STORAGE_FLASH
*
* @param storage : storage type
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
*/
esp_err_t esp_wifi_set_storage(wifi_storage_t storage);
/**
* @brief Set auto connect
* The default value is true
*
* @param en : true - enable auto connect / false - disable auto connect
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_MODE: WiFi internal error, the station/soft-AP control block is invalid
* - others: refer to error code in esp_err.h
*/
esp_err_t esp_wifi_set_auto_connect(bool en);
/**
* @brief Get the auto connect flag
*
* @param[out] en store current auto connect configuration
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
*/
esp_err_t esp_wifi_get_auto_connect(bool *en);
/**
* @brief Set vendor specific element
*
* @param enable enable or not
* @param type information element type
* @param idx information element index
* @param vnd_ie pointer to a vendor specific element
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
* - ESP_ERR_WIFI_ARG: invalid argument
* - ESP_ERR_WIFI_NO_MEM: out of memory
*/
esp_err_t esp_wifi_set_vendor_ie(bool enable, wifi_vendor_ie_type_t type, wifi_vendor_ie_id_t idx, uint8_t *vnd_ie);
/**
* @brief Define function pointer for vendor specific element callback
* @param ctx reserved
* @param type information element type
* @param sa source address
* @param vnd_ie pointer to a vendor specific element
* @param rssi received signal strength indication
*/
typedef void (*esp_vendor_ie_cb_t) (void *ctx, wifi_vendor_ie_type_t type, const uint8_t sa[6], const uint8_t *vnd_ie, int rssi);
/**
* @brief Set vendor specific element callback
*
* @param cb callback function
* @param ctx reserved
*
* @return
* - ESP_OK: succeed
* - ESP_ERR_WIFI_NOT_INIT: WiFi is not initialized by eps_wifi_init
*/
esp_err_t esp_wifi_set_vendor_ie_cb(esp_vendor_ie_cb_t cb, void *ctx);
#ifdef __cplusplus
}
#endif
#endif /* __ESP_WIFI_H__ */
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