81 static struct media_entity *find_entity(struct media_device *mdev, u32 id)  in find_entity()  argument
88 	media_device_for_each_entity(entity, mdev) {  in find_entity()
98 static long media_device_enum_entities(struct media_device *mdev, void *arg)  in media_device_enum_entities()  argument
103 	ent = find_entity(mdev, entd->id);  in media_device_enum_entities()
151 static long media_device_enum_links(struct media_device *mdev, void *arg)  in media_device_enum_links()  argument
156 	entity = find_entity(mdev, links->entity);  in media_device_enum_links()
200 static long media_device_setup_link(struct media_device *mdev, void *arg)  in media_device_setup_link()  argument
209 	source = find_entity(mdev, linkd->source.entity);  in media_device_setup_link()
210 	sink = find_entity(mdev, linkd->sink.entity);  in media_device_setup_link()
230 static long media_device_get_topology(struct media_device *mdev, void *arg)  in media_device_get_topology()  argument
244 	topo->topology_version = mdev->topology_version;  in media_device_get_topology()
249 	media_device_for_each_entity(entity, mdev) {  in media_device_get_topology()
277 	media_device_for_each_intf(intf, mdev) {  in media_device_get_topology()
313 	media_device_for_each_pad(pad, mdev) {  in media_device_get_topology()
341 	media_device_for_each_link(link, mdev) {  in media_device_get_topology()
373 static long media_device_request_alloc(struct media_device *mdev, void *arg)  in media_device_request_alloc()  argument
377 	if (!mdev->ops || !mdev->ops->req_validate || !mdev->ops->req_queue)  in media_device_request_alloc()
380 	return media_request_alloc(mdev, alloc_fd);  in media_device_request_alloc()
489 static long media_device_enum_links32(struct media_device *mdev,  in media_device_enum_links32()  argument
506 	ret = media_device_enum_links(mdev, &links);  in media_device_enum_links32()
559 	struct media_device *mdev = devnode->media_dev;  in model_show()  local
561 	return sprintf(buf, "%.*s\n", (int)sizeof(mdev->model), mdev->model);  in model_show()
577 	struct media_device *mdev = entity->graph_obj.mdev;  in __media_device_unregister_entity()  local
582 	ida_free(&mdev->entity_internal_idx, entity->internal_idx);  in __media_device_unregister_entity()
585 	list_for_each_entry(intf, &mdev->interfaces, graph_obj.list) {  in __media_device_unregister_entity()
605 int __must_check media_device_register_entity(struct media_device *mdev,  in media_device_register_entity()  argument
614 		dev_warn(mdev->dev,  in media_device_register_entity()
619 	WARN_ON(entity->graph_obj.mdev != NULL);  in media_device_register_entity()
620 	entity->graph_obj.mdev = mdev;  in media_device_register_entity()
625 	ret = ida_alloc_min(&mdev->entity_internal_idx, 1, GFP_KERNEL);  in media_device_register_entity()
630 	mutex_lock(&mdev->graph_mutex);  in media_device_register_entity()
631 	mdev->entity_internal_idx_max =  in media_device_register_entity()
632 		max(mdev->entity_internal_idx_max, entity->internal_idx);  in media_device_register_entity()
635 	media_gobj_create(mdev, MEDIA_GRAPH_ENTITY, &entity->graph_obj);  in media_device_register_entity()
639 		media_gobj_create(mdev, MEDIA_GRAPH_PAD, &iter->graph_obj);  in media_device_register_entity()
642 	list_for_each_entry_safe(notify, next, &mdev->entity_notify, list)  in media_device_register_entity()
645 	if (mdev->entity_internal_idx_max  in media_device_register_entity()
646 	    >= mdev->pm_count_walk.ent_enum.idx_max) {  in media_device_register_entity()
654 		ret = media_graph_walk_init(&new, mdev);  in media_device_register_entity()
657 			mutex_unlock(&mdev->graph_mutex);  in media_device_register_entity()
660 		media_graph_walk_cleanup(&mdev->pm_count_walk);  in media_device_register_entity()
661 		mdev->pm_count_walk = new;  in media_device_register_entity()
663 	mutex_unlock(&mdev->graph_mutex);  in media_device_register_entity()
671 	struct media_device *mdev = entity->graph_obj.mdev;  in media_device_unregister_entity()  local
673 	if (mdev == NULL)  in media_device_unregister_entity()
676 	mutex_lock(&mdev->graph_mutex);  in media_device_unregister_entity()
678 	mutex_unlock(&mdev->graph_mutex);  in media_device_unregister_entity()
699 void media_device_init(struct media_device *mdev)  in media_device_init()  argument
701 	INIT_LIST_HEAD(&mdev->entities);  in media_device_init()
702 	INIT_LIST_HEAD(&mdev->interfaces);  in media_device_init()
703 	INIT_LIST_HEAD(&mdev->pads);  in media_device_init()
704 	INIT_LIST_HEAD(&mdev->links);  in media_device_init()
705 	INIT_LIST_HEAD(&mdev->entity_notify);  in media_device_init()
707 	mutex_init(&mdev->req_queue_mutex);  in media_device_init()
708 	mutex_init(&mdev->graph_mutex);  in media_device_init()
709 	ida_init(&mdev->entity_internal_idx);  in media_device_init()
711 	atomic_set(&mdev->request_id, 0);  in media_device_init()
713 	if (!*mdev->bus_info)  in media_device_init()
714 		media_set_bus_info(mdev->bus_info, sizeof(mdev->bus_info),  in media_device_init()
715 				   mdev->dev);  in media_device_init()
717 	atomic_set(&mdev->num_requests, 0);  in media_device_init()
718 	atomic_set(&mdev->num_request_objects, 0);  in media_device_init()
720 	dev_dbg(mdev->dev, "Media device initialized\n");  in media_device_init()
724 void media_device_cleanup(struct media_device *mdev)  in media_device_cleanup()  argument
726 	ida_destroy(&mdev->entity_internal_idx);  in media_device_cleanup()
727 	mdev->entity_internal_idx_max = 0;  in media_device_cleanup()
728 	media_graph_walk_cleanup(&mdev->pm_count_walk);  in media_device_cleanup()
729 	mutex_destroy(&mdev->graph_mutex);  in media_device_cleanup()
730 	mutex_destroy(&mdev->req_queue_mutex);  in media_device_cleanup()
734 int __must_check __media_device_register(struct media_device *mdev,  in __media_device_register()  argument
745 	mdev->devnode = devnode;  in __media_device_register()
747 	devnode->parent = mdev->dev;  in __media_device_register()
751 	mdev->topology_version = 0;  in __media_device_register()
753 	ret = media_devnode_register(mdev, devnode, owner);  in __media_device_register()
756 		mdev->devnode = NULL;  in __media_device_register()
763 		mdev->devnode = NULL;  in __media_device_register()
769 	dev_dbg(mdev->dev, "Media device registered\n");  in __media_device_register()
774 	mdev->media_dir = debugfs_create_dir(dev_name(&devnode->dev),  in __media_device_register()
777 				    mdev->media_dir, media_device_requests);  in __media_device_register()
784 void media_device_register_entity_notify(struct media_device *mdev,  in media_device_register_entity_notify()  argument
787 	mutex_lock(&mdev->graph_mutex);  in media_device_register_entity_notify()
788 	list_add_tail(&nptr->list, &mdev->entity_notify);  in media_device_register_entity_notify()
789 	mutex_unlock(&mdev->graph_mutex);  in media_device_register_entity_notify()
794  * Note: Should be called with mdev->lock held.
796 static void __media_device_unregister_entity_notify(struct media_device *mdev,  in __media_device_unregister_entity_notify()  argument
802 void media_device_unregister_entity_notify(struct media_device *mdev,  in media_device_unregister_entity_notify()  argument
805 	mutex_lock(&mdev->graph_mutex);  in media_device_unregister_entity_notify()
806 	__media_device_unregister_entity_notify(mdev, nptr);  in media_device_unregister_entity_notify()
807 	mutex_unlock(&mdev->graph_mutex);  in media_device_unregister_entity_notify()
811 void media_device_unregister(struct media_device *mdev)  in media_device_unregister()  argument
818 	if (mdev == NULL)  in media_device_unregister()
821 	mutex_lock(&mdev->graph_mutex);  in media_device_unregister()
823 	/* Check if mdev was ever registered at all */  in media_device_unregister()
824 	if (!media_devnode_is_registered(mdev->devnode)) {  in media_device_unregister()
825 		mutex_unlock(&mdev->graph_mutex);  in media_device_unregister()
830 	media_devnode_unregister_prepare(mdev->devnode);  in media_device_unregister()
833 	list_for_each_entry_safe(entity, next, &mdev->entities, graph_obj.list)  in media_device_unregister()
837 	list_for_each_entry_safe(notify, nextp, &mdev->entity_notify, list)  in media_device_unregister()
838 		__media_device_unregister_entity_notify(mdev, notify);  in media_device_unregister()
841 	list_for_each_entry_safe(intf, tmp_intf, &mdev->interfaces,  in media_device_unregister()
852 	mutex_unlock(&mdev->graph_mutex);  in media_device_unregister()
854 	dev_dbg(mdev->dev, "Media device unregistered\n");  in media_device_unregister()
856 	debugfs_remove_recursive(mdev->media_dir);  in media_device_unregister()
857 	device_remove_file(&mdev->devnode->dev, &dev_attr_model);  in media_device_unregister()
858 	media_devnode_unregister(mdev->devnode);  in media_device_unregister()
860 	mdev->devnode = NULL;  in media_device_unregister()
865 void media_device_pci_init(struct media_device *mdev,  in media_device_pci_init()  argument
869 	mdev->dev = &pci_dev->dev;  in media_device_pci_init()
872 		strscpy(mdev->model, name, sizeof(mdev->model));  in media_device_pci_init()
874 		strscpy(mdev->model, pci_name(pci_dev), sizeof(mdev->model));  in media_device_pci_init()
876 	sprintf(mdev->bus_info, "PCI:%s", pci_name(pci_dev));  in media_device_pci_init()
878 	mdev->hw_revision = (pci_dev->subsystem_vendor << 16)  in media_device_pci_init()
881 	media_device_init(mdev);  in media_device_pci_init()
887 void __media_device_usb_init(struct media_device *mdev,  in __media_device_usb_init()  argument
892 	mdev->dev = &udev->dev;  in __media_device_usb_init()
895 		strscpy(mdev->driver_name, driver_name,  in __media_device_usb_init()
896 			sizeof(mdev->driver_name));  in __media_device_usb_init()
899 		strscpy(mdev->model, board_name, sizeof(mdev->model));  in __media_device_usb_init()
901 		strscpy(mdev->model, udev->product, sizeof(mdev->model));  in __media_device_usb_init()
903 		strscpy(mdev->model, "unknown model", sizeof(mdev->model));  in __media_device_usb_init()
905 		strscpy(mdev->serial, udev->serial, sizeof(mdev->serial));  in __media_device_usb_init()
906 	usb_make_path(udev, mdev->bus_info, sizeof(mdev->bus_info));  in __media_device_usb_init()
907 	mdev->hw_revision = le16_to_cpu(udev->descriptor.bcdDevice);  in __media_device_usb_init()
909 	media_device_init(mdev);  in __media_device_usb_init()