51 	struct raw3270_view *view;	/* Active view. */  member
95  * Wait queue for device init/delete, view delete.
126 		x = max_t(int, 0, rp->view->cols + x);  in raw3270_buffer_address()
128 		y = max_t(int, 0, rp->view->rows + y);  in raw3270_buffer_address()
129 	addr = (y * rp->view->cols) + x;  in raw3270_buffer_address()
249 static int __raw3270_start(struct raw3270 *rp, struct raw3270_view *view,  in __raw3270_start()  argument
252 	rq->view = view;  in __raw3270_start()
253 	raw3270_get_view(view);  in __raw3270_start()
260 			raw3270_put_view(view);  in __raw3270_start()
268 int raw3270_view_active(struct raw3270_view *view)  in raw3270_view_active()  argument
270 	struct raw3270 *rp = view->dev;  in raw3270_view_active()
272 	return rp && rp->view == view;  in raw3270_view_active()
275 int raw3270_start(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start()  argument
281 	spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);  in raw3270_start()
282 	rp = view->dev;  in raw3270_start()
283 	if (!rp || rp->view != view)  in raw3270_start()
288 		rc =  __raw3270_start(rp, view, rq);  in raw3270_start()
289 	spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);  in raw3270_start()
294 int raw3270_start_request(struct raw3270_view *view, struct raw3270_request *rq,  in raw3270_start_request()  argument
306 	return raw3270_start(view, rq);  in raw3270_start_request()
310 int raw3270_start_locked(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start_locked()  argument
315 	rp = view->dev;  in raw3270_start_locked()
316 	if (!rp || rp->view != view)  in raw3270_start_locked()
321 		rc =  __raw3270_start(rp, view, rq);  in raw3270_start_locked()
326 int raw3270_start_irq(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start_irq()  argument
330 	rp = view->dev;  in raw3270_start_irq()
331 	rq->view = view;  in raw3270_start_irq()
332 	raw3270_get_view(view);  in raw3270_start_irq()
344 	struct raw3270_view *view;  in raw3270_irq()  local
351 	view = rq ? rq->view : rp->view;  in raw3270_irq()
368 		/* Call interrupt handler of the view */  in raw3270_irq()
369 		if (view)  in raw3270_irq()
370 			view->fn->intv(view, rq, irb);  in raw3270_irq()
383 		raw3270_put_view(view);  in raw3270_irq()
401 		raw3270_put_view(view);  in raw3270_irq()
539 	struct raw3270_view *view;  in raw3270_resize_work()  local
542 	list_for_each_entry(view, &rp->view_list, list) {  in raw3270_resize_work()
543 		if (view->fn->resize)  in raw3270_resize_work()
544 			view->fn->resize(view, rp->model, rp->rows, rp->cols,  in raw3270_resize_work()
550 	/* Setup processing done, now activate a view */  in raw3270_resize_work()
551 	list_for_each_entry(view, &rp->view_list, list) {  in raw3270_resize_work()
552 		rp->view = view;  in raw3270_resize_work()
553 		if (view->fn->activate(view) == 0)  in raw3270_resize_work()
555 		rp->view = NULL;  in raw3270_resize_work()
561 	rp->view = NULL;  in raw3270_size_device_done()
568 	struct raw3270 *rp = rq->view->dev;  in raw3270_read_modified_cb()
615 	struct raw3270 *rp = rq->view->dev;  in raw3270_reset_device_cb()
636 	if (rp->init_reset.view)  in __raw3270_reset_device()
662 int raw3270_reset(struct raw3270_view *view)  in raw3270_reset()  argument
667 	rp = view->dev;  in raw3270_reset()
668 	if (!rp || rp->view != view)  in raw3270_reset()
673 		rc = raw3270_reset_device(view->dev);  in raw3270_reset()
681 	struct raw3270_view *view;  in __raw3270_disconnect()  local
684 	rp->view = &rp->init_view;  in __raw3270_disconnect()
688 		view = rq->view;  in __raw3270_disconnect()
693 		raw3270_put_view(view);  in __raw3270_disconnect()
699 static void raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,  in raw3270_init_irq()  argument
714 		rp = view->dev;  in raw3270_init_irq()
755 	rp->view = &rp->init_view;  in raw3270_setup_device()
881  * view in the panic() context, due to locking restrictions.
883 int raw3270_view_lock_unavailable(struct raw3270_view *view)  in raw3270_view_lock_unavailable()  argument
885 	struct raw3270 *rp = view->dev;  in raw3270_view_lock_unavailable()
894 static int raw3270_assign_activate_view(struct raw3270 *rp, struct raw3270_view *view)  in raw3270_assign_activate_view()  argument
896 	rp->view = view;  in raw3270_assign_activate_view()
897 	return view->fn->activate(view);  in raw3270_assign_activate_view()
900 static int __raw3270_activate_view(struct raw3270 *rp, struct raw3270_view *view)  in __raw3270_activate_view()  argument
905 	if (rp->view == view)  in __raw3270_activate_view()
911 	if (rp->view && rp->view->fn->deactivate) {  in __raw3270_activate_view()
912 		oldview = rp->view;  in __raw3270_activate_view()
916 	rc = raw3270_assign_activate_view(rp, view);  in __raw3270_activate_view()
920 	/* Didn't work. Try to reactivate the old view. */  in __raw3270_activate_view()
927 	/* Didn't work as well. Try any other view. */  in __raw3270_activate_view()
929 		if (nv == view || nv == oldview)  in __raw3270_activate_view()
934 		rp->view = NULL;  in __raw3270_activate_view()
940  * Activate a view.
942 int raw3270_activate_view(struct raw3270_view *view)  in raw3270_activate_view()  argument
948 	rp = view->dev;  in raw3270_activate_view()
952 	rc = __raw3270_activate_view(rp, view);  in raw3270_activate_view()
959  * Deactivate current view.
961 void raw3270_deactivate_view(struct raw3270_view *view)  in raw3270_deactivate_view()  argument
966 	rp = view->dev;  in raw3270_deactivate_view()
970 	if (rp->view == view) {  in raw3270_deactivate_view()
971 		view->fn->deactivate(view);  in raw3270_deactivate_view()
972 		rp->view = NULL;  in raw3270_deactivate_view()
973 		/* Move deactivated view to end of list. */  in raw3270_deactivate_view()
974 		list_del_init(&view->list);  in raw3270_deactivate_view()
975 		list_add_tail(&view->list, &rp->view_list);  in raw3270_deactivate_view()
976 		/* Try to activate another view. */  in raw3270_deactivate_view()
978 			list_for_each_entry(view, &rp->view_list, list) {  in raw3270_deactivate_view()
979 				rp->view = view;  in raw3270_deactivate_view()
980 				if (view->fn->activate(view) == 0)  in raw3270_deactivate_view()
982 				rp->view = NULL;  in raw3270_deactivate_view()
991  * Add view to device with minor "minor".
993 int raw3270_add_view(struct raw3270_view *view, struct raw3270_fn *fn,  in raw3270_add_view()  argument
1008 		atomic_set(&view->ref_count, 2);  in raw3270_add_view()
1009 		view->dev = rp;  in raw3270_add_view()
1010 		view->fn = fn;  in raw3270_add_view()
1011 		view->model = rp->model;  in raw3270_add_view()
1012 		view->rows = rp->rows;  in raw3270_add_view()
1013 		view->cols = rp->cols;  in raw3270_add_view()
1014 		view->ascebc = rp->ascebc;  in raw3270_add_view()
1015 		spin_lock_init(&view->lock);  in raw3270_add_view()
1016 		lockdep_set_subclass(&view->lock, subclass);  in raw3270_add_view()
1017 		list_add(&view->list, &rp->view_list);  in raw3270_add_view()
1028  * Find specific view of device with minor "minor".
1033 	struct raw3270_view *view, *tmp;  in raw3270_find_view()  local
1037 	view = ERR_PTR(-ENODEV);  in raw3270_find_view()
1045 				view = tmp;  in raw3270_find_view()
1053 	return view;  in raw3270_find_view()
1058  * Remove view from device and free view structure via call to view->fn->free.
1060 void raw3270_del_view(struct raw3270_view *view)  in raw3270_del_view()  argument
1066 	rp = view->dev;  in raw3270_del_view()
1068 	if (rp->view == view) {  in raw3270_del_view()
1069 		view->fn->deactivate(view);  in raw3270_del_view()
1070 		rp->view = NULL;  in raw3270_del_view()
1072 	list_del_init(&view->list);  in raw3270_del_view()
1073 	if (!rp->view && raw3270_state_ready(rp)) {  in raw3270_del_view()
1074 		/* Try to activate another view. */  in raw3270_del_view()
1077 				rp->view = nv;  in raw3270_del_view()
1084 	atomic_dec(&view->ref_count);  in raw3270_del_view()
1085 	wait_event(raw3270_wait_queue, atomic_read(&view->ref_count) == 0);  in raw3270_del_view()
1086 	if (view->fn->free)  in raw3270_del_view()
1087 		view->fn->free(view);  in raw3270_del_view()
1245 	/* Deactivate current view and remove all views. */  in raw3270_remove()
1247 	if (rp->view) {  in raw3270_remove()
1248 		if (rp->view->fn->deactivate)  in raw3270_remove()
1249 			rp->view->fn->deactivate(rp->view);  in raw3270_remove()
1250 		rp->view = NULL;  in raw3270_remove()