[media] dvb_usb_v2: suspend/resume stop/start USB streaming

[deliverable/linux.git] / drivers / media / dvb / dvb-usb / dvb_usb_init.c

diff --git a/drivers/media/dvb/dvb-usb/dvb_usb_init.c b/drivers/media/dvb/dvb-usb/dvb_usb_init.c
index 976a706b4cc79a670ea1e04c0d0075f788163588..60011f56cc907a7cb3566d06070d0861e917143e 100644 (file)
--- a/drivers/media/dvb/dvb-usb/dvb_usb_init.c
+++ b/drivers/media/dvb/dvb-usb/dvb_usb_init.c
@@ -439,6 +439,49 @@ void dvb_usbv2_disconnect(struct usb_interface *intf)
 }
 EXPORT_SYMBOL(dvb_usbv2_disconnect);
 
+int dvb_usbv2_suspend(struct usb_interface *intf, pm_message_t msg)
+{
+       struct dvb_usb_device *d = usb_get_intfdata(intf);
+       int i;
+
+       pr_debug("%s:\n", __func__);
+
+       /* stop remote controller poll */
+       if (d->rc.query && !d->rc.bulk_mode)
+               cancel_delayed_work_sync(&d->rc_query_work);
+
+       /* stop streaming */
+       for (i = d->num_adapters_initialized - 1; i >= 0; i--) {
+               if (d->adapter[i].active_fe != -1)
+                       usb_urb_killv2(&d->adapter[i].stream);
+       }
+
+       return 0;
+}
+EXPORT_SYMBOL(dvb_usbv2_suspend);
+
+int dvb_usbv2_resume(struct usb_interface *intf)
+{
+       struct dvb_usb_device *d = usb_get_intfdata(intf);
+       int i;
+
+       pr_debug("%s:\n", __func__);
+
+       /* start streaming */
+       for (i = 0; i < d->num_adapters_initialized; i++) {
+               if (d->adapter[i].active_fe != -1)
+                       usb_urb_submitv2(&d->adapter[i].stream, NULL);
+       }
+
+       /* start remote controller poll */
+       if (d->rc.query && !d->rc.bulk_mode)
+               schedule_delayed_work(&d->rc_query_work,
+                               msecs_to_jiffies(d->rc.interval));
+
+       return 0;
+}
+EXPORT_SYMBOL(dvb_usbv2_resume);
+
 MODULE_VERSION("1.0");
 MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@desy.de>");
 MODULE_DESCRIPTION("A library module containing commonly used USB and DVB function USB DVB devices");