base-modem: allow retrieving non-connected data ports

Bearers will ask for data ports that can be used for connections. Right now,
only one data port is expected to be handled, but we don't impose any
restriction in the API.

2 files changed, 14 insertions, 3 deletions

diff --git a/src/mm-base-modem.c b/src/mm-base-modem.c
index 6f209bfc..bef3ee36 100644
--- a/src/mm-base-modem.c
+++ b/src/mm-base-modem.c
@@ -302,9 +302,6 @@ mm_base_modem_grab_port (MMBaseModem *self,
         if (!self->priv->data || MM_IS_AT_SERIAL_PORT (self->priv->data)) {
             g_clear_object (&self->priv->data);
             self->priv->data = g_object_ref (port);
-
-            /* TODO: */
-            /* check_valid (self); */
         }
 
         mm_dbg ("(%s/%s) port grabbed by %s",
@@ -420,6 +417,19 @@ mm_base_modem_get_port_qcdm (MMBaseModem *self)
     return self->priv->qcdm;
 }
 
+MMPort *
+mm_base_modem_get_best_data_port (MMBaseModem *self)
+{
+    g_return_val_if_fail (MM_IS_BASE_MODEM (self), NULL);
+
+    /* TODO: sometime we'll have a list of available data ports to use instead
+     * of a single one */
+
+    return (mm_port_get_connected (self->priv->data) ?
+            NULL :
+            self->priv->data);
+}
+
 gboolean
 mm_base_modem_auth_request (MMBaseModem *self,
                             const gchar *authorization,
diff --git a/src/mm-base-modem.h b/src/mm-base-modem.h
index f37bf6fe..252fe43d 100644
--- a/src/mm-base-modem.h
+++ b/src/mm-base-modem.h
@@ -107,6 +107,7 @@ gboolean  mm_base_modem_owns_port    (MMBaseModem *self,
 MMAtSerialPort   *mm_base_modem_get_port_primary   (MMBaseModem *self);
 MMAtSerialPort   *mm_base_modem_get_port_secondary (MMBaseModem *self);
 MMQcdmSerialPort *mm_base_modem_get_port_qcdm      (MMBaseModem *self);
+MMPort           *mm_base_modem_get_best_data_port (MMBaseModem *self);
 
 void     mm_base_modem_set_valid    (MMBaseModem *self,
                                      gboolean valid);