iface-modem: send flow control setup commands during enable

src/mm-iface-modem.c

@@ -756,6 +756,7 @@ typedef enum {
     ENABLING_STEP_MODEM_INIT,
     ENABLING_STEP_MODEM_POWER_UP,
     ENABLING_STEP_MODEM_AFTER_POWER_UP,
+    ENABLING_STEP_FLOW_CONTROL,
     ENABLING_STEP_LAST
 } EnablingStep;
 
@@ -856,6 +857,7 @@ mm_iface_modem_enable_finish (MMIfaceModem *self,
 VOID_REPLY_READY_FN (modem_init);
 VOID_REPLY_READY_FN (modem_power_up);
 VOID_REPLY_READY_FN (modem_after_power_up);
+VOID_REPLY_READY_FN (modem_flow_control);
 
 static void
 interface_enabling_flash_done (MMSerialPort *port,
@@ -942,6 +944,18 @@ interface_enabling_step (EnablingContext *ctx)
         /* Fall down to next step */
         ctx->step++;
 
+    case ENABLING_STEP_FLOW_CONTROL:
+        if (MM_IFACE_MODEM_GET_INTERFACE (ctx->self)->modem_flow_control &&
+            MM_IFACE_MODEM_GET_INTERFACE (ctx->self)->modem_flow_control_finish) {
+            MM_IFACE_MODEM_GET_INTERFACE (ctx->self)->modem_flow_control (
+                ctx->self,
+                (GAsyncReadyCallback)modem_flow_control_ready,
+                ctx);
+            return;
+        }
+        /* Fall down to next step */
+        ctx->step++;
+
     case ENABLING_STEP_LAST:
         /* We are done without errors! */
         g_simple_async_result_set_op_res_gboolean (ctx->result, TRUE);

src/mm-iface-modem.h

@@ -207,6 +207,14 @@ struct _MMIfaceModem {
     gboolean (*modem_after_power_up_finish) (MMIfaceModem *self,
                                              GAsyncResult *res,
                                              GError **error);
+
+    /* Asynchronous flow control setup */
+    void (*modem_flow_control) (MMIfaceModem *self,
+                                GAsyncReadyCallback callback,
+                                gpointer user_data);
+    gboolean (*modem_flow_control_finish) (MMIfaceModem *self,
+                                           GAsyncResult *res,
+                                           GError **error);
 };
 
 GType mm_iface_modem_get_type (void);