725 	struct adf_file *fpriv = NULL;  in adf_file_open()  local
740 	fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);  in adf_file_open()
741 	if (!fpriv) {  in adf_file_open()
746 	INIT_LIST_HEAD(&fpriv->head);  in adf_file_open()
747 	fpriv->obj = obj;  in adf_file_open()
748 	init_waitqueue_head(&fpriv->event_wait);  in adf_file_open()
750 	file->private_data = fpriv;  in adf_file_open()
759 	list_add_tail(&fpriv->head, &obj->file_list);  in adf_file_open()
764 		kfree(fpriv);  in adf_file_open()
772 	struct adf_file *fpriv = file->private_data;  in adf_file_release()  local
773 	struct adf_obj *obj = fpriv->obj;  in adf_file_release()
781 	list_del(&fpriv->head);  in adf_file_release()
784 	for_each_set_bit(event_type, fpriv->event_subscriptions,  in adf_file_release()
789 	kfree(fpriv);  in adf_file_release()
798 	struct adf_file *fpriv = file->private_data;  in adf_file_ioctl()  local
799 	struct adf_obj *obj = fpriv->obj;  in adf_file_ioctl()
807 				fpriv, cmd, arg);  in adf_file_ioctl()
811 		ret = adf_interface_ioctl(adf_obj_to_interface(obj), fpriv, cmd,  in adf_file_ioctl()
816 		ret = adf_device_ioctl(adf_obj_to_device(obj), fpriv, cmd, arg);  in adf_file_ioctl()
823 static inline bool adf_file_event_available(struct adf_file *fpriv)  in adf_file_event_available()  argument
825 	int head = fpriv->event_head;  in adf_file_event_available()
826 	int tail = fpriv->event_tail;  in adf_file_event_available()
827 	return CIRC_CNT(head, tail, sizeof(fpriv->event_buf)) != 0;  in adf_file_event_available()
830 void adf_file_queue_event(struct adf_file *fpriv, struct adf_event *event)  in adf_file_queue_event()  argument
832 	int head = fpriv->event_head;  in adf_file_queue_event()
833 	int tail = fpriv->event_tail;  in adf_file_queue_event()
834 	size_t space = CIRC_SPACE(head, tail, sizeof(fpriv->event_buf));  in adf_file_queue_event()
836 			CIRC_SPACE_TO_END(head, tail, sizeof(fpriv->event_buf));  in adf_file_queue_event()
839 		dev_dbg(&fpriv->obj->dev,  in adf_file_queue_event()
846 		memcpy(fpriv->event_buf + head, event, event->length);  in adf_file_queue_event()
848 		memcpy(fpriv->event_buf + head, event, space_to_end);  in adf_file_queue_event()
849 		memcpy(fpriv->event_buf, (u8 *)event + space_to_end,  in adf_file_queue_event()
854 	fpriv->event_head = (fpriv->event_head + event->length) &  in adf_file_queue_event()
855 			(sizeof(fpriv->event_buf) - 1);  in adf_file_queue_event()
856 	wake_up_interruptible_all(&fpriv->event_wait);  in adf_file_queue_event()
859 static ssize_t adf_file_copy_to_user(struct adf_file *fpriv,  in adf_file_copy_to_user()  argument
868 	event_buf = kmalloc(min(buffer_size, sizeof(fpriv->event_buf)),  in adf_file_copy_to_user()
873 	spin_lock_irqsave(&fpriv->obj->file_lock, flags);  in adf_file_copy_to_user()
875 	if (!adf_file_event_available(fpriv))  in adf_file_copy_to_user()
878 	head = fpriv->event_head;  in adf_file_copy_to_user()
879 	tail = fpriv->event_tail;  in adf_file_copy_to_user()
881 	cnt = CIRC_CNT(head, tail, sizeof(fpriv->event_buf));  in adf_file_copy_to_user()
882 	cnt_to_end = CIRC_CNT_TO_END(head, tail, sizeof(fpriv->event_buf));  in adf_file_copy_to_user()
886 		memcpy(event_buf, fpriv->event_buf + tail, copy_size);  in adf_file_copy_to_user()
888 		memcpy(event_buf, fpriv->event_buf + tail, cnt_to_end);  in adf_file_copy_to_user()
889 		memcpy(event_buf + cnt_to_end, fpriv->event_buf,  in adf_file_copy_to_user()
893 	fpriv->event_tail = (fpriv->event_tail + copy_size) &  in adf_file_copy_to_user()
894 			(sizeof(fpriv->event_buf) - 1);  in adf_file_copy_to_user()
897 	spin_unlock_irqrestore(&fpriv->obj->file_lock, flags);  in adf_file_copy_to_user()
911 	struct adf_file *fpriv = filp->private_data;  in adf_file_read()  local
914 	err = wait_event_interruptible(fpriv->event_wait,  in adf_file_read()
915 			adf_file_event_available(fpriv));  in adf_file_read()
919 	return adf_file_copy_to_user(fpriv, buffer, count);  in adf_file_read()
924 	struct adf_file *fpriv = filp->private_data;  in adf_file_poll()  local
927 	poll_wait(filp, &fpriv->event_wait, wait);  in adf_file_poll()
929 	if (adf_file_event_available(fpriv))  in adf_file_poll()