46 	struct raw3270_view *view;	/* Active view. */  member
89  * Wait queue for device init/delete, view delete.
238 __raw3270_start(struct raw3270 *rp, struct raw3270_view *view,  in __raw3270_start()  argument
241 	rq->view = view;  in __raw3270_start()
242 	raw3270_get_view(view);  in __raw3270_start()
249 			raw3270_put_view(view);  in __raw3270_start()
258 raw3270_view_active(struct raw3270_view *view)  in raw3270_view_active()  argument
260 	struct raw3270 *rp = view->dev;  in raw3270_view_active()
262 	return rp && rp->view == view;  in raw3270_view_active()
266 raw3270_start(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start()  argument
272 	spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);  in raw3270_start()
273 	rp = view->dev;  in raw3270_start()
274 	if (!rp || rp->view != view)  in raw3270_start()
279 		rc =  __raw3270_start(rp, view, rq);  in raw3270_start()
280 	spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);  in raw3270_start()
285 raw3270_start_locked(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start_locked()  argument
290 	rp = view->dev;  in raw3270_start_locked()
291 	if (!rp || rp->view != view)  in raw3270_start_locked()
296 		rc =  __raw3270_start(rp, view, rq);  in raw3270_start_locked()
301 raw3270_start_irq(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start_irq()  argument
305 	rp = view->dev;  in raw3270_start_irq()
306 	rq->view = view;  in raw3270_start_irq()
307 	raw3270_get_view(view);  in raw3270_start_irq()
319 	struct raw3270_view *view;  in raw3270_irq()  local
326 	view = rq ? rq->view : rp->view;  in raw3270_irq()
343 		/* Call interrupt handler of the view */  in raw3270_irq()
344 		if (view)  in raw3270_irq()
345 			view->fn->intv(view, rq, irb);  in raw3270_irq()
358 		raw3270_put_view(view);  in raw3270_irq()
376 		raw3270_put_view(view);  in raw3270_irq()
506 	struct raw3270_view *view;  in raw3270_size_device_done()  local
508 	rp->view = NULL;  in raw3270_size_device_done()
511 	list_for_each_entry(view, &rp->view_list, list)  in raw3270_size_device_done()
512 		if (view->fn->resize)  in raw3270_size_device_done()
513 			view->fn->resize(view, rp->model, rp->rows, rp->cols);  in raw3270_size_device_done()
514 	/* Setup processing done, now activate a view */  in raw3270_size_device_done()
515 	list_for_each_entry(view, &rp->view_list, list) {  in raw3270_size_device_done()
516 		rp->view = view;  in raw3270_size_device_done()
517 		if (view->fn->activate(view) == 0)  in raw3270_size_device_done()
519 		rp->view = NULL;  in raw3270_size_device_done()
526 	struct raw3270 *rp = rq->view->dev;  in raw3270_read_modified_cb()
573 	struct raw3270 *rp = rq->view->dev;  in raw3270_reset_device_cb()
594 	if (rp->init_reset.view)  in __raw3270_reset_device()
622 raw3270_reset(struct raw3270_view *view)  in raw3270_reset()  argument
627 	rp = view->dev;  in raw3270_reset()
628 	if (!rp || rp->view != view)  in raw3270_reset()
633 		rc = raw3270_reset_device(view->dev);  in raw3270_reset()
641 	struct raw3270_view *view;  in __raw3270_disconnect()  local
644 	rp->view = &rp->init_view;  in __raw3270_disconnect()
648 		view = rq->view;  in __raw3270_disconnect()
653 		raw3270_put_view(view);  in __raw3270_disconnect()
660 raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,  in raw3270_init_irq()  argument
675 		rp = view->dev;  in raw3270_init_irq()
714 	rp->view = &rp->init_view;  in raw3270_setup_device()
835  * view in the panic() context, due to locking restrictions.
837 int raw3270_view_lock_unavailable(struct raw3270_view *view)  in raw3270_view_lock_unavailable()  argument
839 	struct raw3270 *rp = view->dev;  in raw3270_view_lock_unavailable()
849  * Activate a view.
852 raw3270_activate_view(struct raw3270_view *view)  in raw3270_activate_view()  argument
859 	rp = view->dev;  in raw3270_activate_view()
863 	if (rp->view == view)  in raw3270_activate_view()
869 		if (rp->view && rp->view->fn->deactivate) {  in raw3270_activate_view()
870 			oldview = rp->view;  in raw3270_activate_view()
873 		rp->view = view;  in raw3270_activate_view()
874 		rc = view->fn->activate(view);  in raw3270_activate_view()
876 			/* Didn't work. Try to reactivate the old view. */  in raw3270_activate_view()
877 			rp->view = oldview;  in raw3270_activate_view()
879 				/* Didn't work as well. Try any other view. */  in raw3270_activate_view()
881 					if (nv != view && nv != oldview) {  in raw3270_activate_view()
882 						rp->view = nv;  in raw3270_activate_view()
885 						rp->view = NULL;  in raw3270_activate_view()
895  * Deactivate current view.
898 raw3270_deactivate_view(struct raw3270_view *view)  in raw3270_deactivate_view()  argument
903 	rp = view->dev;  in raw3270_deactivate_view()
907 	if (rp->view == view) {  in raw3270_deactivate_view()
908 		view->fn->deactivate(view);  in raw3270_deactivate_view()
909 		rp->view = NULL;  in raw3270_deactivate_view()
910 		/* Move deactivated view to end of list. */  in raw3270_deactivate_view()
911 		list_del_init(&view->list);  in raw3270_deactivate_view()
912 		list_add_tail(&view->list, &rp->view_list);  in raw3270_deactivate_view()
913 		/* Try to activate another view. */  in raw3270_deactivate_view()
915 			list_for_each_entry(view, &rp->view_list, list) {  in raw3270_deactivate_view()
916 				rp->view = view;  in raw3270_deactivate_view()
917 				if (view->fn->activate(view) == 0)  in raw3270_deactivate_view()
919 				rp->view = NULL;  in raw3270_deactivate_view()
927  * Add view to device with minor "minor".
930 raw3270_add_view(struct raw3270_view *view, struct raw3270_fn *fn, int minor, int subclass)  in raw3270_add_view()  argument
944 		atomic_set(&view->ref_count, 2);  in raw3270_add_view()
945 		view->dev = rp;  in raw3270_add_view()
946 		view->fn = fn;  in raw3270_add_view()
947 		view->model = rp->model;  in raw3270_add_view()
948 		view->rows = rp->rows;  in raw3270_add_view()
949 		view->cols = rp->cols;  in raw3270_add_view()
950 		view->ascebc = rp->ascebc;  in raw3270_add_view()
951 		spin_lock_init(&view->lock);  in raw3270_add_view()
952 		lockdep_set_subclass(&view->lock, subclass);  in raw3270_add_view()
953 		list_add(&view->list, &rp->view_list);  in raw3270_add_view()
963  * Find specific view of device with minor "minor".
969 	struct raw3270_view *view, *tmp;  in raw3270_find_view()  local
973 	view = ERR_PTR(-ENODEV);  in raw3270_find_view()
981 				view = tmp;  in raw3270_find_view()
989 	return view;  in raw3270_find_view()
993  * Remove view from device and free view structure via call to view->fn->free.
996 raw3270_del_view(struct raw3270_view *view)  in raw3270_del_view()  argument
1002 	rp = view->dev;  in raw3270_del_view()
1004 	if (rp->view == view) {  in raw3270_del_view()
1005 		view->fn->deactivate(view);  in raw3270_del_view()
1006 		rp->view = NULL;  in raw3270_del_view()
1008 	list_del_init(&view->list);  in raw3270_del_view()
1009 	if (!rp->view && raw3270_state_ready(rp)) {  in raw3270_del_view()
1010 		/* Try to activate another view. */  in raw3270_del_view()
1013 				rp->view = nv;  in raw3270_del_view()
1020 	atomic_dec(&view->ref_count);  in raw3270_del_view()
1021 	wait_event(raw3270_wait_queue, atomic_read(&view->ref_count) == 0);  in raw3270_del_view()
1022 	if (view->fn->free)  in raw3270_del_view()
1023 		view->fn->free(view);  in raw3270_del_view()
1181 	/* Deactivate current view and remove all views. */  in raw3270_remove()
1183 	if (rp->view) {  in raw3270_remove()
1184 		if (rp->view->fn->deactivate)  in raw3270_remove()
1185 			rp->view->fn->deactivate(rp->view);  in raw3270_remove()
1186 		rp->view = NULL;  in raw3270_remove()