47 bool iio_event_enabled(const struct iio_event_interface *ev_int)  in iio_event_enabled()  argument
49 	return !!test_bit(IIO_BUSY_BIT_POS, &ev_int->flags);  in iio_event_enabled()
68 	struct iio_event_interface *ev_int = indio_dev->event_interface;  in iio_push_event()  local
72 	if (!ev_int)  in iio_push_event()
76 	if (iio_event_enabled(ev_int)) {  in iio_push_event()
81 		copied = kfifo_put(&ev_int->det_events, ev);  in iio_push_event()
83 			wake_up_poll(&ev_int->wait, EPOLLIN);  in iio_push_event()
102 	struct iio_event_interface *ev_int = indio_dev->event_interface;  in iio_event_poll()  local
108 	poll_wait(filep, &ev_int->wait, wait);  in iio_event_poll()
110 	if (!kfifo_is_empty(&ev_int->det_events))  in iio_event_poll()
122 	struct iio_event_interface *ev_int = indio_dev->event_interface;  in iio_event_chrdev_read()  local
133 		if (kfifo_is_empty(&ev_int->det_events)) {  in iio_event_chrdev_read()
137 			ret = wait_event_interruptible(ev_int->wait,  in iio_event_chrdev_read()
138 					!kfifo_is_empty(&ev_int->det_events) ||  in iio_event_chrdev_read()
146 		if (mutex_lock_interruptible(&ev_int->read_lock))  in iio_event_chrdev_read()
148 		ret = kfifo_to_user(&ev_int->det_events, buf, count, &copied);  in iio_event_chrdev_read()
149 		mutex_unlock(&ev_int->read_lock);  in iio_event_chrdev_read()
171 	struct iio_event_interface *ev_int = indio_dev->event_interface;  in iio_event_chrdev_release()  local
173 	clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags);  in iio_event_chrdev_release()
190 	struct iio_event_interface *ev_int = indio_dev->event_interface;  in iio_event_getfd()  local
193 	if (ev_int == NULL)  in iio_event_getfd()
200 	if (test_and_set_bit(IIO_BUSY_BIT_POS, &ev_int->flags)) {  in iio_event_getfd()
210 		clear_bit(IIO_BUSY_BIT_POS, &ev_int->flags);  in iio_event_getfd()
213 		kfifo_reset_out(&ev_int->det_events);  in iio_event_getfd()
465 static void iio_setup_ev_int(struct iio_event_interface *ev_int)  in iio_setup_ev_int()  argument
467 	INIT_KFIFO(ev_int->det_events);  in iio_setup_ev_int()
468 	init_waitqueue_head(&ev_int->wait);  in iio_setup_ev_int()
469 	mutex_init(&ev_int->read_lock);  in iio_setup_ev_int()