58 	struct iio_event_interface *ev_int = indio_dev->event_interface;  in iio_push_event()  local
63 	if (test_bit(IIO_BUSY_BIT_POS, &ev_int->flags)) {  in iio_push_event()
68 		copied = kfifo_put(&ev_int->det_events, ev);  in iio_push_event()
70 			wake_up_poll(&ev_int->wait, POLLIN);  in iio_push_event()
89 	struct iio_event_interface *ev_int = indio_dev->event_interface;  in iio_event_poll()  local
95 	poll_wait(filep, &ev_int->wait, wait);  in iio_event_poll()
97 	if (!kfifo_is_empty(&ev_int->det_events))  in iio_event_poll()
109 	struct iio_event_interface *ev_int = indio_dev->event_interface;  in iio_event_chrdev_read()  local
120 		if (kfifo_is_empty(&ev_int->det_events)) {  in iio_event_chrdev_read()
124 			ret = wait_event_interruptible(ev_int->wait,  in iio_event_chrdev_read()
125 					!kfifo_is_empty(&ev_int->det_events) ||  in iio_event_chrdev_read()
133 		if (mutex_lock_interruptible(&ev_int->read_lock))  in iio_event_chrdev_read()
135 		ret = kfifo_to_user(&ev_int->det_events, buf, count, &copied);  in iio_event_chrdev_read()
136 		mutex_unlock(&ev_int->read_lock);  in iio_event_chrdev_read()
158 	struct iio_event_interface *ev_int = indio_dev->event_interface;  in iio_event_chrdev_release()  local
160 	clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags);  in iio_event_chrdev_release()
177 	struct iio_event_interface *ev_int = indio_dev->event_interface;  in iio_event_getfd()  local
180 	if (ev_int == NULL)  in iio_event_getfd()
183 	if (test_and_set_bit(IIO_BUSY_BIT_POS, &ev_int->flags))  in iio_event_getfd()
191 		clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags);  in iio_event_getfd()
194 		kfifo_reset_out(&ev_int->det_events);  in iio_event_getfd()
444 static void iio_setup_ev_int(struct iio_event_interface *ev_int)  in iio_setup_ev_int()  argument
446 	INIT_KFIFO(ev_int->det_events);  in iio_setup_ev_int()
447 	init_waitqueue_head(&ev_int->wait);  in iio_setup_ev_int()
448 	mutex_init(&ev_int->read_lock);  in iio_setup_ev_int()