port-qmi: initialize net port driver information early

The MMPortQmi may need to know very early what kind of net ports are
going to be used later on during connection, e.g. to decide what kind
of multiplexing capabilities are available and such.

So, once we have organized ports in the modem, we'll take the driver
of the first network port in the list of data ports, and pass it down
to all QMI ports setup in the modem object.

src/mm-base-modem.c

@@ -1440,6 +1440,16 @@ mm_base_modem_organize_ports (MMBaseModem *self,
 
 #if defined WITH_QMI
     if (qmi) {
+        /* The first item in the data list must be a net port, because
+         * QMI modems only expect net ports */
+        g_assert (MM_IS_PORT_NET (self->priv->data->data));
+        /* let the MMPortQmi know which net driver is being used, taken
+         * from the first item in the net port list */
+        g_list_foreach (qmi,
+                        (GFunc)mm_port_qmi_set_net_driver,
+                        (gpointer) mm_kernel_device_get_driver (
+                            mm_port_peek_kernel_device (
+                                MM_PORT (self->priv->data->data))));
         g_list_foreach (qmi, (GFunc)g_object_ref, NULL);
         self->priv->qmi = qmi;
     }

src/mm-port-qmi.c

@@ -40,6 +40,7 @@ struct _MMPortQmiPrivate {
     gboolean   in_progress;
     QmiDevice *qmi_device;
     GList     *services;
+    gchar     *net_driver;
     /* endpoint info */
     gulong              endpoint_info_signal_id;
     QmiDataEndpointType endpoint_type;
@@ -2279,6 +2280,17 @@ mm_port_qmi_is_open (MMPortQmi *self)
 
 /*****************************************************************************/
 
+void
+mm_port_qmi_set_net_driver (MMPortQmi   *self,
+                            const gchar *net_driver)
+{
+    g_assert (MM_IS_PORT_QMI (self));
+    g_assert (!self->priv->net_driver);
+    self->priv->net_driver = g_strdup (net_driver);
+}
+
+/*****************************************************************************/
+
 typedef struct {
     QmiDevice *qmi_device;
 } PortQmiCloseContext;
@@ -2440,6 +2452,8 @@ dispose (GObject *object)
     /* Clear device object */
     g_clear_object (&self->priv->qmi_device);
 
+    g_clear_pointer (&self->priv->net_driver, g_free);
+
     G_OBJECT_CLASS (mm_port_qmi_parent_class)->dispose (object);
 }
 

src/mm-port-qmi.h

@@ -65,6 +65,9 @@ gboolean   mm_port_qmi_close_finish (MMPortQmi            *self,
                                      GAsyncResult         *res,
                                      GError              **error);
 
+void       mm_port_qmi_set_net_driver (MMPortQmi   *self,
+                                       const gchar *net_driver);
+
 typedef enum {
     MM_PORT_QMI_FLAG_DEFAULT  = 0,
     MM_PORT_QMI_FLAG_WDS_IPV4 = 100,