smart config support

[seopyoon]

So far, the arduino sdk is not supporting the SmartConfig function it seems.
When are you planning on adding WiFi.beginSmartConfig()?

Is there a way to use smart config functionality at the very moment?

[seopyoon]

I made modifications to WiFiSTA.cpp and .h to support ESP's smart config functionality. But it does not seem to work.

To WiFiSTA.cpp, I added:

bool WiFiSTAClass::_smartConfigStarted = false;
bool WiFiSTAClass::_smartConfigDone = false;


bool WiFiSTAClass::beginSmartConfig() {
    if (_smartConfigStarted) {
        return false;
    }

    if (!WiFi.enableSTA(true)) {
        return false;
    }


    esp_err_t err;
    err = esp_smartconfig_start(reinterpret_cast<sc_callback_t>(&WiFiSTAClass::_smartConfigCallback), 1);
    if (err == ESP_OK) {
        _smartConfigStarted = true;
        _smartConfigDone = false;
        return true;
    }
    return false;
}

bool WiFiSTAClass::stopSmartConfig() {
    if (!_smartConfigStarted) {
        return true;
    }

    if (esp_smartconfig_stop() == ESP_OK) {
        _smartConfigStarted = false;
        return true;
    }

    return false;
}

bool WiFiSTAClass::smartConfigDone() {
    if (!_smartConfigStarted) {
        return false;
    }

    return _smartConfigDone;
}

void WiFiSTAClass::_smartConfigCallback(uint32_t st, void* result) {
    smartconfig_status_t status = (smartconfig_status_t) st;
    if (status == SC_STATUS_LINK) {
        wifi_sta_config_t *sta_conf = reinterpret_cast<wifi_sta_config_t *>(result);

        esp_wifi_set_config(WIFI_IF_AP, (wifi_config_t *)sta_conf);
        esp_wifi_disconnect();
        esp_wifi_connect();
    } else if (status == SC_STATUS_LINK_OVER) {
        WiFi.stopSmartConfig();
    }
}

and, to WiFiSta.h, I added:

public:
    bool beginSmartConfig();
    bool stopSmartConfig();
    bool smartConfigDone();

protected:
    static bool _smartConfigStarted;
    static bool _smartConfigDone;
    static void _smartConfigCallback(uint32_t status, void* result);

It does not crash or anything, but when trying to use ESP Smart Config using the app on PlayStore, it gives me Esptouch fail error, after several seconds of trying. I believe the modifications to the Arduino classes are done correctly, but somehow the functionality is not working well.

[seopyoon]

I accidentally closed the issue. So I reopened it.

[me-no-dev]

Why not submit a PR? :) we can merge those things and have your name there

[seopyoon]

@me-no-dev done!