/**
* Start Wifi connection
* if passphrase is set the most secure supported mode will be automatically selected
* @param ssid const char* Pointer to the SSID string.
* @param passphrase const char * Optional. Passphrase. Valid characters in a passphrase must be between ASCII 32-126 (decimal).
* @param bssid uint8_t[6] Optional. BSSID / MAC of AP
* @param channel Optional. Channel of AP
* @param connect Optional. call connect
* @return
*/
wl_status_t WiFiSTAClass::begin(const char* ssid, const char *passphrase, int32_t channel, const uint8_t* bssid, bool connect)
{
if(!WiFi.enableSTA(true)) {
// enable STA failed
return WL_CONNECT_FAILED;
}
if(!ssid || *ssid == 0x00 || strlen(ssid) > 31) {
// fail SSID too long or missing!
return WL_CONNECT_FAILED;
}
if(passphrase && strlen(passphrase) > 63) {
// fail passphrase too long!
return WL_CONNECT_FAILED;
}
wifi_config_t conf;
strcpy(reinterpret_cast<char*>(conf.sta.ssid), ssid);
if(passphrase) {
strcpy(reinterpret_cast<char*>(conf.sta.password), passphrase);
} else {
*conf.sta.password = 0;
}
if(bssid) {
conf.sta.bssid_set = 1;
memcpy((void *) &conf.sta.bssid[0], (void *) bssid, 6);
} else {
conf.sta.bssid_set = 0;
}
wifi_config_t current_conf;
esp_wifi_get_config(WIFI_IF_STA, ¤t_conf);
if(!sta_config_equal(current_conf, conf)) {
esp_wifi_set_config(WIFI_IF_STA, &conf);
}
if(channel > 0 && channel <= 13) {
esp_wifi_set_channel(channel, WIFI_SECOND_CHAN_NONE);
}
esp_wifi_start();
if(connect) {
esp_wifi_connect();
}
if(!_useStaticIp) {
tcpip_adapter_dhcpc_start(TCPIP_ADAPTER_IF_STA);
} else {
tcpip_adapter_dhcpc_stop(TCPIP_ADAPTER_IF_STA);
}
return status();
}
/**
* Use to connect to SDK config.
* @return wl_status_t
*/
wl_status_t WiFiSTAClass::begin()
{
if(!WiFi.enableSTA(true)) {
// enable STA failed
return WL_CONNECT_FAILED;
}
esp_wifi_start();
esp_wifi_connect();
if(!_useStaticIp) {
tcpip_adapter_dhcpc_start(TCPIP_ADAPTER_IF_STA);
} else {
tcpip_adapter_dhcpc_stop(TCPIP_ADAPTER_IF_STA);
}
return status();
}
/**
* Become a station connecting to an existing access point.
*/
static void becomeStation(connection_info_t *pConnectionInfo) {
ESP_LOGD(tag, "- Connecting to access point \"%s\" ...", pConnectionInfo->ssid);
assert(strlen(pConnectionInfo->ssid) > 0);
// If we have a static IP address information, use that.
if (pConnectionInfo->ipInfo.ip.addr != 0) {
ESP_LOGD(tag, " - using a static IP address of " IPSTR, IP2STR(&pConnectionInfo->ipInfo.ip));
tcpip_adapter_dhcpc_stop(TCPIP_ADAPTER_IF_STA);
tcpip_adapter_set_ip_info(TCPIP_ADAPTER_IF_STA, &pConnectionInfo->ipInfo);
} else {
tcpip_adapter_dhcpc_start(TCPIP_ADAPTER_IF_STA);
}
ESP_ERROR_CHECK( esp_wifi_set_mode(WIFI_MODE_STA));
wifi_config_t sta_config;
sta_config.sta.bssid_set = 0;
memcpy(sta_config.sta.ssid, pConnectionInfo->ssid, SSID_SIZE);
memcpy(sta_config.sta.password, pConnectionInfo->password, PASSWORD_SIZE);
ESP_ERROR_CHECK(esp_wifi_set_config(WIFI_IF_STA, &sta_config));
ESP_ERROR_CHECK(esp_wifi_start());
ESP_ERROR_CHECK(esp_wifi_connect());
} // becomeStation
