50 	struct raw3270_view *view;	/* Active view. */  member
94  * Wait queue for device init/delete, view delete.
125 		x = max_t(int, 0, rp->view->cols + x);  in raw3270_buffer_address()
127 		y = max_t(int, 0, rp->view->rows + y);  in raw3270_buffer_address()
128 	addr = (y * rp->view->cols) + x;  in raw3270_buffer_address()
248 static int __raw3270_start(struct raw3270 *rp, struct raw3270_view *view,  in __raw3270_start()  argument
251 	rq->view = view;  in __raw3270_start()
252 	raw3270_get_view(view);  in __raw3270_start()
259 			raw3270_put_view(view);  in __raw3270_start()
267 int raw3270_view_active(struct raw3270_view *view)  in raw3270_view_active()  argument
269 	struct raw3270 *rp = view->dev;  in raw3270_view_active()
271 	return rp && rp->view == view;  in raw3270_view_active()
274 int raw3270_start(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start()  argument
280 	spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);  in raw3270_start()
281 	rp = view->dev;  in raw3270_start()
282 	if (!rp || rp->view != view)  in raw3270_start()
287 		rc =  __raw3270_start(rp, view, rq);  in raw3270_start()
288 	spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);  in raw3270_start()
293 int raw3270_start_request(struct raw3270_view *view, struct raw3270_request *rq,  in raw3270_start_request()  argument
305 	return raw3270_start(view, rq);  in raw3270_start_request()
309 int raw3270_start_locked(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start_locked()  argument
314 	rp = view->dev;  in raw3270_start_locked()
315 	if (!rp || rp->view != view)  in raw3270_start_locked()
320 		rc =  __raw3270_start(rp, view, rq);  in raw3270_start_locked()
325 int raw3270_start_irq(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start_irq()  argument
329 	rp = view->dev;  in raw3270_start_irq()
330 	rq->view = view;  in raw3270_start_irq()
331 	raw3270_get_view(view);  in raw3270_start_irq()
343 	struct raw3270_view *view;  in raw3270_irq()  local
350 	view = rq ? rq->view : rp->view;  in raw3270_irq()
367 		/* Call interrupt handler of the view */  in raw3270_irq()
368 		if (view)  in raw3270_irq()
369 			view->fn->intv(view, rq, irb);  in raw3270_irq()
382 		raw3270_put_view(view);  in raw3270_irq()
400 		raw3270_put_view(view);  in raw3270_irq()
538 	struct raw3270_view *view;  in raw3270_resize_work()  local
541 	list_for_each_entry(view, &rp->view_list, list) {  in raw3270_resize_work()
542 		if (view->fn->resize)  in raw3270_resize_work()
543 			view->fn->resize(view, rp->model, rp->rows, rp->cols,  in raw3270_resize_work()
549 	/* Setup processing done, now activate a view */  in raw3270_resize_work()
550 	list_for_each_entry(view, &rp->view_list, list) {  in raw3270_resize_work()
551 		rp->view = view;  in raw3270_resize_work()
552 		if (view->fn->activate(view) == 0)  in raw3270_resize_work()
554 		rp->view = NULL;  in raw3270_resize_work()
560 	rp->view = NULL;  in raw3270_size_device_done()
567 	struct raw3270 *rp = rq->view->dev;  in raw3270_read_modified_cb()
614 	struct raw3270 *rp = rq->view->dev;  in raw3270_reset_device_cb()
635 	if (rp->init_reset.view)  in __raw3270_reset_device()
661 int raw3270_reset(struct raw3270_view *view)  in raw3270_reset()  argument
666 	rp = view->dev;  in raw3270_reset()
667 	if (!rp || rp->view != view)  in raw3270_reset()
672 		rc = raw3270_reset_device(view->dev);  in raw3270_reset()
680 	struct raw3270_view *view;  in __raw3270_disconnect()  local
683 	rp->view = &rp->init_view;  in __raw3270_disconnect()
687 		view = rq->view;  in __raw3270_disconnect()
692 		raw3270_put_view(view);  in __raw3270_disconnect()
698 static void raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,  in raw3270_init_irq()  argument
713 		rp = view->dev;  in raw3270_init_irq()
754 	rp->view = &rp->init_view;  in raw3270_setup_device()
880  * view in the panic() context, due to locking restrictions.
882 int raw3270_view_lock_unavailable(struct raw3270_view *view)  in raw3270_view_lock_unavailable()  argument
884 	struct raw3270 *rp = view->dev;  in raw3270_view_lock_unavailable()
893 static int raw3270_assign_activate_view(struct raw3270 *rp, struct raw3270_view *view)  in raw3270_assign_activate_view()  argument
895 	rp->view = view;  in raw3270_assign_activate_view()
896 	return view->fn->activate(view);  in raw3270_assign_activate_view()
899 static int __raw3270_activate_view(struct raw3270 *rp, struct raw3270_view *view)  in __raw3270_activate_view()  argument
904 	if (rp->view == view)  in __raw3270_activate_view()
910 	if (rp->view && rp->view->fn->deactivate) {  in __raw3270_activate_view()
911 		oldview = rp->view;  in __raw3270_activate_view()
915 	rc = raw3270_assign_activate_view(rp, view);  in __raw3270_activate_view()
919 	/* Didn't work. Try to reactivate the old view. */  in __raw3270_activate_view()
926 	/* Didn't work as well. Try any other view. */  in __raw3270_activate_view()
928 		if (nv == view || nv == oldview)  in __raw3270_activate_view()
933 		rp->view = NULL;  in __raw3270_activate_view()
939  * Activate a view.
941 int raw3270_activate_view(struct raw3270_view *view)  in raw3270_activate_view()  argument
947 	rp = view->dev;  in raw3270_activate_view()
951 	rc = __raw3270_activate_view(rp, view);  in raw3270_activate_view()
958  * Deactivate current view.
960 void raw3270_deactivate_view(struct raw3270_view *view)  in raw3270_deactivate_view()  argument
965 	rp = view->dev;  in raw3270_deactivate_view()
969 	if (rp->view == view) {  in raw3270_deactivate_view()
970 		view->fn->deactivate(view);  in raw3270_deactivate_view()
971 		rp->view = NULL;  in raw3270_deactivate_view()
972 		/* Move deactivated view to end of list. */  in raw3270_deactivate_view()
973 		list_del_init(&view->list);  in raw3270_deactivate_view()
974 		list_add_tail(&view->list, &rp->view_list);  in raw3270_deactivate_view()
975 		/* Try to activate another view. */  in raw3270_deactivate_view()
977 			list_for_each_entry(view, &rp->view_list, list) {  in raw3270_deactivate_view()
978 				rp->view = view;  in raw3270_deactivate_view()
979 				if (view->fn->activate(view) == 0)  in raw3270_deactivate_view()
981 				rp->view = NULL;  in raw3270_deactivate_view()
990  * Add view to device with minor "minor".
992 int raw3270_add_view(struct raw3270_view *view, struct raw3270_fn *fn,  in raw3270_add_view()  argument
1007 		atomic_set(&view->ref_count, 2);  in raw3270_add_view()
1008 		view->dev = rp;  in raw3270_add_view()
1009 		view->fn = fn;  in raw3270_add_view()
1010 		view->model = rp->model;  in raw3270_add_view()
1011 		view->rows = rp->rows;  in raw3270_add_view()
1012 		view->cols = rp->cols;  in raw3270_add_view()
1013 		view->ascebc = rp->ascebc;  in raw3270_add_view()
1014 		spin_lock_init(&view->lock);  in raw3270_add_view()
1015 		lockdep_set_subclass(&view->lock, subclass);  in raw3270_add_view()
1016 		list_add(&view->list, &rp->view_list);  in raw3270_add_view()
1027  * Find specific view of device with minor "minor".
1032 	struct raw3270_view *view, *tmp;  in raw3270_find_view()  local
1036 	view = ERR_PTR(-ENODEV);  in raw3270_find_view()
1044 				view = tmp;  in raw3270_find_view()
1052 	return view;  in raw3270_find_view()
1057  * Remove view from device and free view structure via call to view->fn->free.
1059 void raw3270_del_view(struct raw3270_view *view)  in raw3270_del_view()  argument
1065 	rp = view->dev;  in raw3270_del_view()
1067 	if (rp->view == view) {  in raw3270_del_view()
1068 		view->fn->deactivate(view);  in raw3270_del_view()
1069 		rp->view = NULL;  in raw3270_del_view()
1071 	list_del_init(&view->list);  in raw3270_del_view()
1072 	if (!rp->view && raw3270_state_ready(rp)) {  in raw3270_del_view()
1073 		/* Try to activate another view. */  in raw3270_del_view()
1076 				rp->view = nv;  in raw3270_del_view()
1083 	atomic_dec(&view->ref_count);  in raw3270_del_view()
1084 	wait_event(raw3270_wait_queue, atomic_read(&view->ref_count) == 0);  in raw3270_del_view()
1085 	if (view->fn->free)  in raw3270_del_view()
1086 		view->fn->free(view);  in raw3270_del_view()
1244 	/* Deactivate current view and remove all views. */  in raw3270_remove()
1246 	if (rp->view) {  in raw3270_remove()
1247 		if (rp->view->fn->deactivate)  in raw3270_remove()
1248 			rp->view->fn->deactivate(rp->view);  in raw3270_remove()
1249 		rp->view = NULL;  in raw3270_remove()