broadband-modem: load default location reporting capabilities

Currently, only LAC/CI if the modem has 3GPP capabilities.

src/mm-broadband-modem.c

@@ -3972,6 +3972,49 @@ modem_cdma_register_in_network (MMIfaceModemCdma *self,
         ctx);
 }
 
+/*****************************************************************************/
+/* Load location capabilities (Location interface) */
+
+static MMModemLocationSource
+modem_location_load_capabilities_finish (MMIfaceModemLocation *self,
+                                         GAsyncResult *res,
+                                         GError **error)
+{
+    if (g_simple_async_result_propagate_error (G_SIMPLE_ASYNC_RESULT (res), error))
+        return MM_MODEM_LOCATION_SOURCE_NONE;
+
+    return (MMModemLocationSource) GPOINTER_TO_UINT (g_simple_async_result_get_op_res_gpointer (
+                                                         G_SIMPLE_ASYNC_RESULT (res)));
+}
+
+static void
+modem_location_load_capabilities (MMIfaceModemLocation *self,
+                                  GAsyncReadyCallback callback,
+                                  gpointer user_data)
+{
+    GSimpleAsyncResult *result;
+
+    result = g_simple_async_result_new (G_OBJECT (self),
+                                        callback,
+                                        user_data,
+                                        modem_location_load_capabilities);
+
+    /* Default location capabilities supported by the generic broadband
+     * implementation are only LAC-CI in 3GPP-enabled modems. And even this,
+     * will only be true if the modem supports CREG/CGREG=2 */
+    if (!mm_iface_modem_is_3gpp (MM_IFACE_MODEM (self)))
+        g_simple_async_result_set_op_res_gpointer (result,
+                                                   GUINT_TO_POINTER (MM_MODEM_LOCATION_SOURCE_NONE),
+                                                   NULL);
+    else
+        g_simple_async_result_set_op_res_gpointer (result,
+                                                   GUINT_TO_POINTER (MM_MODEM_LOCATION_SOURCE_GSM_LAC_CI),
+                                                   NULL);
+
+    g_simple_async_result_complete_in_idle (result);
+    g_object_unref (result);
+}
+
 /*****************************************************************************/
 
 typedef enum {
@@ -4951,6 +4994,8 @@ iface_modem_simple_init (MMIfaceModemSimple *iface)
 static void
 iface_modem_location_init (MMIfaceModemLocation *iface)
 {
+    iface->load_capabilities = modem_location_load_capabilities;
+    iface->load_capabilities_finish = modem_location_load_capabilities_finish;
 }
 
 static void