maemo.org - Talk - Network type detection

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Network type detection

Hi,

I need to detect the network type I'm connected through on a N900, in order to adapt the size of what I'm downloading to the connection speed.

I can already find out whether I'm connected through WiFi or cellular data, but in the latter case I would need to know what's the "generation" of that cellular connection (2.5G, 3G or 3.5G ?) in order to estimate the throughput I can expect.

There's got to be a way to get that information since the status area displays it, but so far I haven't been able to find it.

Any hint is welcome,
Thanks in advance

Re: Network type detection

yup check my healthcheck application :)

Uses Python / pymaemo - and pulls out Cell info connection type

A good example of the code can be found here though - http://repository.maemo.org/extras-d...urce/n/netmon/

Re: Network type detection

Thanks, that was indeed really helpful. Here's the code I came up with, in case someone else is interested:

Code:

GError* error = NULL;

DBusGConnection* dbus = dbus_g_bus_get(DBUS_BUS_SYSTEM, &error);

DBusGProxy* phoneNetProxy = dbus_g_proxy_new_for_name(dbus, "com.nokia.phone.net", "/com/nokia/phone/net", "Phone.Net");



guchar status;

guint  lac;

guint  cellId;

guint  operatorCode;

guint  countryCode;

guchar networkType;

guchar supportedServices;

gint   netError;

dbus_g_proxy_call(phoneNetProxy, "get_registration_status", &error,

                  G_TYPE_INVALID,

                  G_TYPE_UCHAR, &status,

                  G_TYPE_UINT,  &lac,

                  G_TYPE_UINT,  &cellId,

                  G_TYPE_UINT,  &operatorCode,

                  G_TYPE_UINT,  &countryCode,

                  G_TYPE_UCHAR, &networkType,

                  G_TYPE_UCHAR, &supportedServices,

                  G_TYPE_INT,   &netError,

                  G_TYPE_INVALID);



g_object_unref(phoneNetProxy);



if (supportedServices & 0x08) return "3.5G"; // HSDPA

if (supportedServices & 0x04) return "3G";   // EGPRS

if (supportedServices & 0x01) return "2.5G"; // GPRS

if (supportedServices & 0x02) return "2G";   // CS (Circuit Switched)

return NULL;

Re: Network type detection

Quote:

Originally Posted by rbailly (Post 551069)

Thanks, that was indeed really helpful. Here's the code I came up with, in case someone else is interested:

Code:

GError* error = NULL;

DBusGConnection* dbus = dbus_g_bus_get(DBUS_BUS_SYSTEM, &error);

DBusGProxy* phoneNetProxy = dbus_g_proxy_new_for_name(dbus, "com.nokia.phone.net", "/com/nokia/phone/net", "Phone.Net");



guchar status;

guint  lac;

guint  cellId;

guint  operatorCode;

guint  countryCode;

guchar networkType;

guchar supportedServices;

gint   netError;

dbus_g_proxy_call(phoneNetProxy, "get_registration_status", &error,

                  G_TYPE_INVALID,

                  G_TYPE_UCHAR, &status,

                  G_TYPE_UINT,  &lac,

                  G_TYPE_UINT,  &cellId,

                  G_TYPE_UINT,  &operatorCode,

                  G_TYPE_UINT,  &countryCode,

                  G_TYPE_UCHAR, &networkType,

                  G_TYPE_UCHAR, &supportedServices,

                  G_TYPE_INT,   &netError,

                  G_TYPE_INVALID);



g_object_unref(phoneNetProxy);



if (supportedServices & 0x08) return "3.5G"; // HSDPA

if (supportedServices & 0x04) return "3G";   // EGPRS

if (supportedServices & 0x01) return "2.5G"; // GPRS

if (supportedServices & 0x02) return "2G";   // CS (Circuit Switched)

return NULL;

Nicely done :) - and thank you for reposting back - allways good to get extra info. - if it is not already on the wiki - may be worth you posting an example page on there?

Re: Network type detection

Thanks for posting that! :)

Can you please post code for how to detect if the current connection is wifi or cellular ?

Re: Network type detection

Quote:

Originally Posted by tmsha (Post 551408)

Thanks for posting that! :)

Can you please post code for how to detect if the current connection is wifi or cellular ?

Ok, here we go. Please note that this is code I wrote on the fly by copying and pasting parts of my own code. It compiles fine but I haven't tested it.

You can also figure out whether you're connected through bluetooth by testing for additional bearer strings as documented in libconic.

Code:

#include <conic/conicconnection.h>

#include <conic/conicconnectionevent.h>

#include <conic/conicevent.h>

#include <glib/gmain.h>

#include <string.h>

        



enum ConnectionType

{

    CONN_TYPE_UNKNOWN,

    CONN_TYPE_WIFI,

    CONN_TYPE_CELLULAR,

};





struct ConnectionEventData

{

    GMainLoop*     loop;

    ConnectionType type;

};





void ConnectionEventCallback(ConIcConnection* /*connection*/, ConIcConnectionEvent* event, gpointer user_data)

{

    ConnectionEventData* data = static_cast<ConnectionEventData*>(user_data);



    bool connected = (con_ic_connection_event_get_status(event) == CON_IC_STATUS_CONNECTED);

    if (connected)

    {

        const gchar* bearer = con_ic_event_get_bearer_type(CON_IC_EVENT(event));

        if (strcmp(bearer,CON_IC_BEARER_WLAN_ADHOC)==0 || strcmp(bearer,CON_IC_BEARER_WLAN_INFRA)==0)

            data->type =  CONN_TYPE_WIFI;

        else if (strcmp(bearer,"GPRS") == 0)

            data->type = CONN_TYPE_CELLULAR;

    }



    g_main_loop_quit(data->loop);

}





ConnectionType GetConnectionType()

{

    ConnectionEventData data;

    data.loop = g_main_loop_new(NULL, FALSE);

    data.type = CONN_TYPE_UNKNOWN;



    // Create connection

    ConIcConnection* connection = con_ic_connection_new();

    g_object_ref_sink(connection);

    g_signal_connect(G_OBJECT(connection), "connection-event", G_CALLBACK(ConnectionEventCallback), &data);



    // Ask whether we're already connected

    con_ic_connection_connect(connection, CON_IC_CONNECT_FLAG_AUTOMATICALLY_TRIGGERED);



    // Run our own event loop to wait for notification

    g_main_loop_run(data.loop);

    g_main_loop_unref(data.loop);



    g_object_unref(connection);

    return data.type;

}