48 	struct raw3270_view *view;	/* Active view. */  member
92  * Wait queue for device init/delete, view delete.
123 		x = max_t(int, 0, rp->view->cols + x);  in raw3270_buffer_address()
125 		y = max_t(int, 0, rp->view->rows + y);  in raw3270_buffer_address()
126 	addr = (y * rp->view->cols) + x;  in raw3270_buffer_address()
244 static int __raw3270_start(struct raw3270 *rp, struct raw3270_view *view,  in __raw3270_start()  argument
247 	rq->view = view;  in __raw3270_start()
248 	raw3270_get_view(view);  in __raw3270_start()
255 			raw3270_put_view(view);  in __raw3270_start()
263 int raw3270_view_active(struct raw3270_view *view)  in raw3270_view_active()  argument
265 	struct raw3270 *rp = view->dev;  in raw3270_view_active()
267 	return rp && rp->view == view;  in raw3270_view_active()
270 int raw3270_start(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start()  argument
276 	spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);  in raw3270_start()
277 	rp = view->dev;  in raw3270_start()
278 	if (!rp || rp->view != view)  in raw3270_start()
283 		rc =  __raw3270_start(rp, view, rq);  in raw3270_start()
284 	spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);  in raw3270_start()
289 int raw3270_start_request(struct raw3270_view *view, struct raw3270_request *rq,  in raw3270_start_request()  argument
301 	return raw3270_start(view, rq);  in raw3270_start_request()
305 int raw3270_start_locked(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start_locked()  argument
310 	rp = view->dev;  in raw3270_start_locked()
311 	if (!rp || rp->view != view)  in raw3270_start_locked()
316 		rc =  __raw3270_start(rp, view, rq);  in raw3270_start_locked()
321 int raw3270_start_irq(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start_irq()  argument
325 	rp = view->dev;  in raw3270_start_irq()
326 	rq->view = view;  in raw3270_start_irq()
327 	raw3270_get_view(view);  in raw3270_start_irq()
339 	struct raw3270_view *view;  in raw3270_irq()  local
346 	view = rq ? rq->view : rp->view;  in raw3270_irq()
363 		/* Call interrupt handler of the view */  in raw3270_irq()
364 		if (view)  in raw3270_irq()
365 			view->fn->intv(view, rq, irb);  in raw3270_irq()
378 		raw3270_put_view(view);  in raw3270_irq()
396 		raw3270_put_view(view);  in raw3270_irq()
534 	struct raw3270_view *view;  in raw3270_resize_work()  local
537 	list_for_each_entry(view, &rp->view_list, list) {  in raw3270_resize_work()
538 		if (view->fn->resize)  in raw3270_resize_work()
539 			view->fn->resize(view, rp->model, rp->rows, rp->cols,  in raw3270_resize_work()
545 	/* Setup processing done, now activate a view */  in raw3270_resize_work()
546 	list_for_each_entry(view, &rp->view_list, list) {  in raw3270_resize_work()
547 		rp->view = view;  in raw3270_resize_work()
548 		if (view->fn->activate(view) == 0)  in raw3270_resize_work()
550 		rp->view = NULL;  in raw3270_resize_work()
556 	rp->view = NULL;  in raw3270_size_device_done()
563 	struct raw3270 *rp = rq->view->dev;  in raw3270_read_modified_cb()
610 	struct raw3270 *rp = rq->view->dev;  in raw3270_reset_device_cb()
631 	if (rp->init_reset.view)  in __raw3270_reset_device()
657 int raw3270_reset(struct raw3270_view *view)  in raw3270_reset()  argument
662 	rp = view->dev;  in raw3270_reset()
663 	if (!rp || rp->view != view)  in raw3270_reset()
668 		rc = raw3270_reset_device(view->dev);  in raw3270_reset()
676 	struct raw3270_view *view;  in __raw3270_disconnect()  local
679 	rp->view = &rp->init_view;  in __raw3270_disconnect()
683 		view = rq->view;  in __raw3270_disconnect()
688 		raw3270_put_view(view);  in __raw3270_disconnect()
694 static void raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,  in raw3270_init_irq()  argument
709 		rp = view->dev;  in raw3270_init_irq()
750 	rp->view = &rp->init_view;  in raw3270_setup_device()
876  * view in the panic() context, due to locking restrictions.
878 int raw3270_view_lock_unavailable(struct raw3270_view *view)  in raw3270_view_lock_unavailable()  argument
880 	struct raw3270 *rp = view->dev;  in raw3270_view_lock_unavailable()
889 static int raw3270_assign_activate_view(struct raw3270 *rp, struct raw3270_view *view)  in raw3270_assign_activate_view()  argument
891 	rp->view = view;  in raw3270_assign_activate_view()
892 	return view->fn->activate(view);  in raw3270_assign_activate_view()
895 static int __raw3270_activate_view(struct raw3270 *rp, struct raw3270_view *view)  in __raw3270_activate_view()  argument
900 	if (rp->view == view)  in __raw3270_activate_view()
906 	if (rp->view && rp->view->fn->deactivate) {  in __raw3270_activate_view()
907 		oldview = rp->view;  in __raw3270_activate_view()
911 	rc = raw3270_assign_activate_view(rp, view);  in __raw3270_activate_view()
915 	/* Didn't work. Try to reactivate the old view. */  in __raw3270_activate_view()
922 	/* Didn't work as well. Try any other view. */  in __raw3270_activate_view()
924 		if (nv == view || nv == oldview)  in __raw3270_activate_view()
929 		rp->view = NULL;  in __raw3270_activate_view()
935  * Activate a view.
937 int raw3270_activate_view(struct raw3270_view *view)  in raw3270_activate_view()  argument
943 	rp = view->dev;  in raw3270_activate_view()
947 	rc = __raw3270_activate_view(rp, view);  in raw3270_activate_view()
954  * Deactivate current view.
956 void raw3270_deactivate_view(struct raw3270_view *view)  in raw3270_deactivate_view()  argument
961 	rp = view->dev;  in raw3270_deactivate_view()
965 	if (rp->view == view) {  in raw3270_deactivate_view()
966 		view->fn->deactivate(view);  in raw3270_deactivate_view()
967 		rp->view = NULL;  in raw3270_deactivate_view()
968 		/* Move deactivated view to end of list. */  in raw3270_deactivate_view()
969 		list_del_init(&view->list);  in raw3270_deactivate_view()
970 		list_add_tail(&view->list, &rp->view_list);  in raw3270_deactivate_view()
971 		/* Try to activate another view. */  in raw3270_deactivate_view()
973 			list_for_each_entry(view, &rp->view_list, list) {  in raw3270_deactivate_view()
974 				rp->view = view;  in raw3270_deactivate_view()
975 				if (view->fn->activate(view) == 0)  in raw3270_deactivate_view()
977 				rp->view = NULL;  in raw3270_deactivate_view()
986  * Add view to device with minor "minor".
988 int raw3270_add_view(struct raw3270_view *view, struct raw3270_fn *fn,  in raw3270_add_view()  argument
1003 		atomic_set(&view->ref_count, 2);  in raw3270_add_view()
1004 		view->dev = rp;  in raw3270_add_view()
1005 		view->fn = fn;  in raw3270_add_view()
1006 		view->model = rp->model;  in raw3270_add_view()
1007 		view->rows = rp->rows;  in raw3270_add_view()
1008 		view->cols = rp->cols;  in raw3270_add_view()
1009 		view->ascebc = rp->ascebc;  in raw3270_add_view()
1010 		spin_lock_init(&view->lock);  in raw3270_add_view()
1011 		lockdep_set_subclass(&view->lock, subclass);  in raw3270_add_view()
1012 		list_add(&view->list, &rp->view_list);  in raw3270_add_view()
1023  * Find specific view of device with minor "minor".
1028 	struct raw3270_view *view, *tmp;  in raw3270_find_view()  local
1032 	view = ERR_PTR(-ENODEV);  in raw3270_find_view()
1040 				view = tmp;  in raw3270_find_view()
1048 	return view;  in raw3270_find_view()
1053  * Remove view from device and free view structure via call to view->fn->free.
1055 void raw3270_del_view(struct raw3270_view *view)  in raw3270_del_view()  argument
1061 	rp = view->dev;  in raw3270_del_view()
1063 	if (rp->view == view) {  in raw3270_del_view()
1064 		view->fn->deactivate(view);  in raw3270_del_view()
1065 		rp->view = NULL;  in raw3270_del_view()
1067 	list_del_init(&view->list);  in raw3270_del_view()
1068 	if (!rp->view && raw3270_state_ready(rp)) {  in raw3270_del_view()
1069 		/* Try to activate another view. */  in raw3270_del_view()
1072 				rp->view = nv;  in raw3270_del_view()
1079 	atomic_dec(&view->ref_count);  in raw3270_del_view()
1080 	wait_event(raw3270_wait_queue, atomic_read(&view->ref_count) == 0);  in raw3270_del_view()
1081 	if (view->fn->free)  in raw3270_del_view()
1082 		view->fn->free(view);  in raw3270_del_view()
1240 	/* Deactivate current view and remove all views. */  in raw3270_remove()
1242 	if (rp->view) {  in raw3270_remove()
1243 		if (rp->view->fn->deactivate)  in raw3270_remove()
1244 			rp->view->fn->deactivate(rp->view);  in raw3270_remove()
1245 		rp->view = NULL;  in raw3270_remove()