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https://github.com/esp8266/Arduino.git
synced 2025-06-15 00:02:49 +03:00
add WiFi scan Async mode
This commit is contained in:
Markus Sattler
@ -40,107 +40,119 @@ bool ESP8266WiFiMulti::addAP(const char* ssid, const char *passphrase) {
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wl_status_t ESP8266WiFiMulti::run(void) {
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int8_t scanResult;
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wl_status_t status = WiFi.status();
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if(status == WL_DISCONNECTED || status == WL_NO_SSID_AVAIL || status == WL_IDLE_STATUS || status == WL_CONNECT_FAILED) {
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WifiAPlist_t bestNetwork { NULL, NULL };
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int bestNetworkDb = INT_MIN;
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uint8 bestBSSID[6];
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int32_t bestChannel;
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scanResult = WiFi.scanComplete();
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if(scanResult == WIFI_SCAN_RUNNING) {
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// scan is running
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return WL_NO_SSID_AVAIL;
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} else if(scanResult > 0) {
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// scan done analyze
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WifiAPlist_t bestNetwork { NULL, NULL };
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int bestNetworkDb = INT_MIN;
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uint8 bestBSSID[6];
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int32_t bestChannel;
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DEBUG_WIFI_MULTI("[WIFI] delete old wifi config...\n");
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WiFi.disconnect();
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DEBUG_WIFI_MULTI("[WIFI] scan done\n");
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delay(0);
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DEBUG_WIFI_MULTI("[WIFI] start scan\n");
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// WiFi.scanNetworks will return the number of networks found
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int8_t n = WiFi.scanNetworks();
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if(scanResult <= 0) {
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DEBUG_WIFI_MULTI("[WIFI] no networks found\n");
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} else {
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DEBUG_WIFI_MULTI("[WIFI] %d networks found\n", scanResult);
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for(int8_t i = 0; i < scanResult; ++i) {
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DEBUG_WIFI_MULTI("[WIFI] scan done\n");
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delay(0);
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String ssid_scan;
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int32_t rssi_scan;
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uint8_t sec_scan;
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uint8_t* BSSID_scan;
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int32_t chan_scan;
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bool hidden_scan;
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if(n <= 0) {
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DEBUG_WIFI_MULTI("[WIFI] no networks found\n");
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} else {
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DEBUG_WIFI_MULTI("[WIFI] %d networks found\n", n);
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for(int8_t i = 0; i < n; ++i) {
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WiFi.getNetworkInfo(i, ssid_scan, sec_scan, rssi_scan, BSSID_scan, chan_scan, hidden_scan);
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String ssid_scan;
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int32_t rssi_scan;
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uint8_t sec_scan;
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uint8_t* BSSID_scan;
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int32_t chan_scan;
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bool hidden_scan;
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bool known = false;
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for(uint32_t x = 0; x < APlist.size(); x++) {
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WifiAPlist_t entry = APlist[x];
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WiFi.getNetworkInfo(i, ssid_scan, sec_scan, rssi_scan, BSSID_scan, chan_scan, hidden_scan);
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bool known = false;
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for(uint32_t x = 0; x < APlist.size(); x++) {
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WifiAPlist_t entry = APlist[x];
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if(ssid_scan == entry.ssid) { // SSID match
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known = true;
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if(rssi_scan > bestNetworkDb) { // best network
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if(sec_scan == ENC_TYPE_NONE || entry.passphrase) { // check for passphrase if not open wlan
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bestNetworkDb = rssi_scan;
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bestChannel = chan_scan;
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memcpy((void*) &bestNetwork, (void*) &entry, sizeof(bestNetwork));
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memcpy((void*) &bestBSSID, (void*) BSSID_scan, sizeof(bestBSSID));
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if(ssid_scan == entry.ssid) { // SSID match
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known = true;
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if(rssi_scan > bestNetworkDb) { // best network
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if(sec_scan == ENC_TYPE_NONE || entry.passphrase) { // check for passphrase if not open wlan
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bestNetworkDb = rssi_scan;
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bestChannel = chan_scan;
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memcpy((void*) &bestNetwork, (void*) &entry, sizeof(bestNetwork));
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memcpy((void*) &bestBSSID, (void*) BSSID_scan, sizeof(bestBSSID));
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}
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}
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break;
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}
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break;
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}
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}
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if(known) {
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DEBUG_WIFI_MULTI(" ---> ");
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} else {
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DEBUG_WIFI_MULTI(" ");
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}
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if(known) {
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DEBUG_WIFI_MULTI(" ---> ");
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} else {
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DEBUG_WIFI_MULTI(" ");
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}
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DEBUG_WIFI_MULTI(" %d: [%d][%02X:%02X:%02X:%02X:%02X:%02X] %s (%d) %c\n", i, chan_scan, BSSID_scan[0], BSSID_scan[1], BSSID_scan[2], BSSID_scan[3], BSSID_scan[4], BSSID_scan[5], ssid_scan.c_str(), rssi_scan, (sec_scan == ENC_TYPE_NONE) ? ' ' : '*');
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delay(0);
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DEBUG_WIFI_MULTI(" %d: [%d][%02X:%02X:%02X:%02X:%02X:%02X] %s (%d) %c\n", i, chan_scan, BSSID_scan[0], BSSID_scan[1], BSSID_scan[2], BSSID_scan[3], BSSID_scan[4], BSSID_scan[5], ssid_scan.c_str(), rssi_scan, (sec_scan == ENC_TYPE_NONE) ? ' ' : '*');
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delay(0);
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}
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}
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}
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DEBUG_WIFI_MULTI("\n\n");
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delay(0);
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// clean up ram
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WiFi.scanDelete();
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if(bestNetwork.ssid) {
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DEBUG_WIFI_MULTI("[WIFI] Connecting BSSID: %02X:%02X:%02X:%02X:%02X:%02X SSID: %s Channal: %d (%d)\n", bestBSSID[0], bestBSSID[1], bestBSSID[2], bestBSSID[3], bestBSSID[4], bestBSSID[5], bestNetwork.ssid, bestChannel, bestNetworkDb);
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DEBUG_WIFI_MULTI("\n\n");
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delay(0);
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WiFi.begin(bestNetwork.ssid, bestNetwork.passphrase, bestChannel, bestBSSID);
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status = WiFi.status();
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if(bestNetwork.ssid) {
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DEBUG_WIFI_MULTI("[WIFI] Connecting BSSID: %02X:%02X:%02X:%02X:%02X:%02X SSID: %s Channal: %d (%d)\n", bestBSSID[0], bestBSSID[1], bestBSSID[2], bestBSSID[3], bestBSSID[4], bestBSSID[5], bestNetwork.ssid, bestChannel, bestNetworkDb);
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// wait for connection or fail
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while(status != WL_CONNECTED && status != WL_NO_SSID_AVAIL && status != WL_CONNECT_FAILED) {
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delay(10);
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WiFi.begin(bestNetwork.ssid, bestNetwork.passphrase, bestChannel, bestBSSID);
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status = WiFi.status();
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}
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IPAddress ip;
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uint8_t * mac;
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switch(status) {
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case WL_CONNECTED:
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ip = WiFi.localIP();
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mac = WiFi.BSSID();
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DEBUG_WIFI_MULTI("[WIFI] Connecting done.\n");
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DEBUG_WIFI_MULTI("[WIFI] SSID: %s\n", WiFi.SSID());
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DEBUG_WIFI_MULTI("[WIFI] IP: %d.%d.%d.%d\n", ip[0], ip[1], ip[2], ip[3]);
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DEBUG_WIFI_MULTI("[WIFI] MAC: %02X:%02X:%02X:%02X:%02X:%02X\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
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DEBUG_WIFI_MULTI("[WIFI] Channel: %d\n", WiFi.channel());
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break;
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case WL_NO_SSID_AVAIL:
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DEBUG_WIFI_MULTI("[WIFI] Connecting Faild AP not found.\n");
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break;
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case WL_CONNECT_FAILED:
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DEBUG_WIFI_MULTI("[WIFI] Connecting Faild.\n");
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break;
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default:
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DEBUG_WIFI_MULTI("[WIFI] Connecting Faild (%d).\n", status);
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break;
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// wait for connection or fail
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while(status != WL_CONNECTED && status != WL_NO_SSID_AVAIL && status != WL_CONNECT_FAILED) {
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delay(10);
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status = WiFi.status();
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}
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IPAddress ip;
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uint8_t * mac;
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switch(status) {
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case WL_CONNECTED:
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ip = WiFi.localIP();
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mac = WiFi.BSSID();
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DEBUG_WIFI_MULTI("[WIFI] Connecting done.\n");
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DEBUG_WIFI_MULTI("[WIFI] SSID: %s\n", WiFi.SSID());
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DEBUG_WIFI_MULTI("[WIFI] IP: %d.%d.%d.%d\n", ip[0], ip[1], ip[2], ip[3]);
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DEBUG_WIFI_MULTI("[WIFI] MAC: %02X:%02X:%02X:%02X:%02X:%02X\n", mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
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DEBUG_WIFI_MULTI("[WIFI] Channel: %d\n", WiFi.channel());
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break;
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case WL_NO_SSID_AVAIL:
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DEBUG_WIFI_MULTI("[WIFI] Connecting Faild AP not found.\n");
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break;
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case WL_CONNECT_FAILED:
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DEBUG_WIFI_MULTI("[WIFI] Connecting Faild.\n");
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break;
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default:
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DEBUG_WIFI_MULTI("[WIFI] Connecting Faild (%d).\n", status);
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break;
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}
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} else {
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DEBUG_WIFI_MULTI("[WIFI] no matching wifi found!\n");
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}
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} else {
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DEBUG_WIFI_MULTI("[WIFI] no matching wifi found!\n");
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// start scan
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DEBUG_WIFI_MULTI("[WIFI] delete old wifi config...\n");
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WiFi.disconnect();
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DEBUG_WIFI_MULTI("[WIFI] start scan\n");
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// scan wifi async mode
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WiFi.scanNetworks(true);
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}
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}
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return status;
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