52 	struct raw3270_view *view;	/* Active view. */  member
96  * Wait queue for device init/delete, view delete.
127 		x = max_t(int, 0, rp->view->cols + x);  in raw3270_buffer_address()
129 		y = max_t(int, 0, rp->view->rows + y);  in raw3270_buffer_address()
130 	addr = (y * rp->view->cols) + x;  in raw3270_buffer_address()
250 static int __raw3270_start(struct raw3270 *rp, struct raw3270_view *view,  in __raw3270_start()  argument
253 	rq->view = view;  in __raw3270_start()
254 	raw3270_get_view(view);  in __raw3270_start()
261 			raw3270_put_view(view);  in __raw3270_start()
269 int raw3270_view_active(struct raw3270_view *view)  in raw3270_view_active()  argument
271 	struct raw3270 *rp = view->dev;  in raw3270_view_active()
273 	return rp && rp->view == view;  in raw3270_view_active()
276 int raw3270_start(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start()  argument
282 	spin_lock_irqsave(get_ccwdev_lock(view->dev->cdev), flags);  in raw3270_start()
283 	rp = view->dev;  in raw3270_start()
284 	if (!rp || rp->view != view)  in raw3270_start()
289 		rc =  __raw3270_start(rp, view, rq);  in raw3270_start()
290 	spin_unlock_irqrestore(get_ccwdev_lock(view->dev->cdev), flags);  in raw3270_start()
295 int raw3270_start_request(struct raw3270_view *view, struct raw3270_request *rq,  in raw3270_start_request()  argument
307 	return raw3270_start(view, rq);  in raw3270_start_request()
311 int raw3270_start_locked(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start_locked()  argument
316 	rp = view->dev;  in raw3270_start_locked()
317 	if (!rp || rp->view != view)  in raw3270_start_locked()
322 		rc =  __raw3270_start(rp, view, rq);  in raw3270_start_locked()
327 int raw3270_start_irq(struct raw3270_view *view, struct raw3270_request *rq)  in raw3270_start_irq()  argument
331 	rp = view->dev;  in raw3270_start_irq()
332 	rq->view = view;  in raw3270_start_irq()
333 	raw3270_get_view(view);  in raw3270_start_irq()
345 	struct raw3270_view *view;  in raw3270_irq()  local
352 	view = rq ? rq->view : rp->view;  in raw3270_irq()
369 		/* Call interrupt handler of the view */  in raw3270_irq()
370 		if (view)  in raw3270_irq()
371 			view->fn->intv(view, rq, irb);  in raw3270_irq()
384 		raw3270_put_view(view);  in raw3270_irq()
402 		raw3270_put_view(view);  in raw3270_irq()
540 	struct raw3270_view *view;  in raw3270_resize_work()  local
543 	list_for_each_entry(view, &rp->view_list, list) {  in raw3270_resize_work()
544 		if (view->fn->resize)  in raw3270_resize_work()
545 			view->fn->resize(view, rp->model, rp->rows, rp->cols,  in raw3270_resize_work()
551 	/* Setup processing done, now activate a view */  in raw3270_resize_work()
552 	list_for_each_entry(view, &rp->view_list, list) {  in raw3270_resize_work()
553 		rp->view = view;  in raw3270_resize_work()
554 		if (view->fn->activate(view) == 0)  in raw3270_resize_work()
556 		rp->view = NULL;  in raw3270_resize_work()
562 	rp->view = NULL;  in raw3270_size_device_done()
569 	struct raw3270 *rp = rq->view->dev;  in raw3270_read_modified_cb()
616 	struct raw3270 *rp = rq->view->dev;  in raw3270_reset_device_cb()
637 	if (rp->init_reset.view)  in __raw3270_reset_device()
663 int raw3270_reset(struct raw3270_view *view)  in raw3270_reset()  argument
668 	rp = view->dev;  in raw3270_reset()
669 	if (!rp || rp->view != view)  in raw3270_reset()
674 		rc = raw3270_reset_device(view->dev);  in raw3270_reset()
682 	struct raw3270_view *view;  in __raw3270_disconnect()  local
685 	rp->view = &rp->init_view;  in __raw3270_disconnect()
689 		view = rq->view;  in __raw3270_disconnect()
694 		raw3270_put_view(view);  in __raw3270_disconnect()
700 static void raw3270_init_irq(struct raw3270_view *view, struct raw3270_request *rq,  in raw3270_init_irq()  argument
715 		rp = view->dev;  in raw3270_init_irq()
756 	rp->view = &rp->init_view;  in raw3270_setup_device()
882  * view in the panic() context, due to locking restrictions.
884 int raw3270_view_lock_unavailable(struct raw3270_view *view)  in raw3270_view_lock_unavailable()  argument
886 	struct raw3270 *rp = view->dev;  in raw3270_view_lock_unavailable()
895 static int raw3270_assign_activate_view(struct raw3270 *rp, struct raw3270_view *view)  in raw3270_assign_activate_view()  argument
897 	rp->view = view;  in raw3270_assign_activate_view()
898 	return view->fn->activate(view);  in raw3270_assign_activate_view()
901 static int __raw3270_activate_view(struct raw3270 *rp, struct raw3270_view *view)  in __raw3270_activate_view()  argument
906 	if (rp->view == view)  in __raw3270_activate_view()
912 	if (rp->view && rp->view->fn->deactivate) {  in __raw3270_activate_view()
913 		oldview = rp->view;  in __raw3270_activate_view()
917 	rc = raw3270_assign_activate_view(rp, view);  in __raw3270_activate_view()
921 	/* Didn't work. Try to reactivate the old view. */  in __raw3270_activate_view()
928 	/* Didn't work as well. Try any other view. */  in __raw3270_activate_view()
930 		if (nv == view || nv == oldview)  in __raw3270_activate_view()
935 		rp->view = NULL;  in __raw3270_activate_view()
941  * Activate a view.
943 int raw3270_activate_view(struct raw3270_view *view)  in raw3270_activate_view()  argument
949 	rp = view->dev;  in raw3270_activate_view()
953 	rc = __raw3270_activate_view(rp, view);  in raw3270_activate_view()
960  * Deactivate current view.
962 void raw3270_deactivate_view(struct raw3270_view *view)  in raw3270_deactivate_view()  argument
967 	rp = view->dev;  in raw3270_deactivate_view()
971 	if (rp->view == view) {  in raw3270_deactivate_view()
972 		view->fn->deactivate(view);  in raw3270_deactivate_view()
973 		rp->view = NULL;  in raw3270_deactivate_view()
974 		/* Move deactivated view to end of list. */  in raw3270_deactivate_view()
975 		list_del_init(&view->list);  in raw3270_deactivate_view()
976 		list_add_tail(&view->list, &rp->view_list);  in raw3270_deactivate_view()
977 		/* Try to activate another view. */  in raw3270_deactivate_view()
979 			list_for_each_entry(view, &rp->view_list, list) {  in raw3270_deactivate_view()
980 				rp->view = view;  in raw3270_deactivate_view()
981 				if (view->fn->activate(view) == 0)  in raw3270_deactivate_view()
983 				rp->view = NULL;  in raw3270_deactivate_view()
992  * Add view to device with minor "minor".
994 int raw3270_add_view(struct raw3270_view *view, struct raw3270_fn *fn,  in raw3270_add_view()  argument
1009 		atomic_set(&view->ref_count, 2);  in raw3270_add_view()
1010 		view->dev = rp;  in raw3270_add_view()
1011 		view->fn = fn;  in raw3270_add_view()
1012 		view->model = rp->model;  in raw3270_add_view()
1013 		view->rows = rp->rows;  in raw3270_add_view()
1014 		view->cols = rp->cols;  in raw3270_add_view()
1015 		view->ascebc = rp->ascebc;  in raw3270_add_view()
1016 		spin_lock_init(&view->lock);  in raw3270_add_view()
1017 		lockdep_set_subclass(&view->lock, subclass);  in raw3270_add_view()
1018 		list_add(&view->list, &rp->view_list);  in raw3270_add_view()
1029  * Find specific view of device with minor "minor".
1034 	struct raw3270_view *view, *tmp;  in raw3270_find_view()  local
1038 	view = ERR_PTR(-ENODEV);  in raw3270_find_view()
1046 				view = tmp;  in raw3270_find_view()
1054 	return view;  in raw3270_find_view()
1059  * Remove view from device and free view structure via call to view->fn->free.
1061 void raw3270_del_view(struct raw3270_view *view)  in raw3270_del_view()  argument
1067 	rp = view->dev;  in raw3270_del_view()
1069 	if (rp->view == view) {  in raw3270_del_view()
1070 		view->fn->deactivate(view);  in raw3270_del_view()
1071 		rp->view = NULL;  in raw3270_del_view()
1073 	list_del_init(&view->list);  in raw3270_del_view()
1074 	if (!rp->view && raw3270_state_ready(rp)) {  in raw3270_del_view()
1075 		/* Try to activate another view. */  in raw3270_del_view()
1078 				rp->view = nv;  in raw3270_del_view()
1085 	atomic_dec(&view->ref_count);  in raw3270_del_view()
1086 	wait_event(raw3270_wait_queue, atomic_read(&view->ref_count) == 0);  in raw3270_del_view()
1087 	if (view->fn->free)  in raw3270_del_view()
1088 		view->fn->free(view);  in raw3270_del_view()
1246 	/* Deactivate current view and remove all views. */  in raw3270_remove()
1248 	if (rp->view) {  in raw3270_remove()
1249 		if (rp->view->fn->deactivate)  in raw3270_remove()
1250 			rp->view->fn->deactivate(rp->view);  in raw3270_remove()
1251 		rp->view = NULL;  in raw3270_remove()