1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * STMicroelectronics magnetometers driver
4 *
5 * Copyright 2012-2013 STMicroelectronics Inc.
6 *
7 * Denis Ciocca <denis.ciocca@st.com>
8 */
9
10#include <linux/kernel.h>
11#include <linux/iio/iio.h>
12#include <linux/iio/buffer.h>
13#include <linux/iio/trigger.h>
14#include <linux/iio/triggered_buffer.h>
15
16#include <linux/iio/common/st_sensors.h>
17#include "st_magn.h"
18
19int st_magn_trig_set_state(struct iio_trigger *trig, bool state)
20{
21	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
22
23	return st_sensors_set_dataready_irq(indio_dev, state);
24}
25
26static int st_magn_buffer_postenable(struct iio_dev *indio_dev)
27{
28	return st_sensors_set_enable(indio_dev, true);
29}
30
31static int st_magn_buffer_predisable(struct iio_dev *indio_dev)
32{
33	return st_sensors_set_enable(indio_dev, false);
34}
35
36static const struct iio_buffer_setup_ops st_magn_buffer_setup_ops = {
37	.postenable = &st_magn_buffer_postenable,
38	.predisable = &st_magn_buffer_predisable,
39};
40
41int st_magn_allocate_ring(struct iio_dev *indio_dev)
42{
43	return devm_iio_triggered_buffer_setup(indio_dev->dev.parent, indio_dev,
44		NULL, &st_sensors_trigger_handler, &st_magn_buffer_setup_ops);
45}
46
47