sierra: implement modem reset

plugins/sierra/mm-broadband-modem-sierra.c

@@ -491,6 +491,30 @@ modem_create_bearer (MMIfaceModem *self,
                                     result);
 }
 
+/*****************************************************************************/
+/* Reset (Modem interface) */
+
+static gboolean
+modem_reset_finish (MMIfaceModem *self,
+                    GAsyncResult *res,
+                    GError **error)
+{
+    return !!mm_base_modem_at_command_finish (MM_BASE_MODEM (self), res, error);
+}
+
+static void
+modem_reset (MMIfaceModem *self,
+             GAsyncReadyCallback callback,
+             gpointer user_data)
+{
+    mm_base_modem_at_command (MM_BASE_MODEM (self),
+                              "!RESET",
+                              3,
+                              FALSE,
+                              callback,
+                              user_data);
+}
+
 /*****************************************************************************/
 /* Modem power down (Modem interface) */
 
@@ -1135,6 +1159,8 @@ iface_modem_init (MMIfaceModem *iface)
     iface->set_allowed_modes_finish = set_allowed_modes_finish;
     iface->load_access_technologies = load_access_technologies;
     iface->load_access_technologies_finish = load_access_technologies_finish;
+    iface->reset = modem_reset;
+    iface->reset_finish = modem_reset_finish;
     iface->modem_power_up = mm_common_sierra_modem_power_up;
     iface->modem_power_up_finish = mm_common_sierra_modem_power_up_finish;
     iface->modem_init_power_down = modem_power_down;