blob: cb43ccda808ddd748d45f6190c9ffd3d645049e9 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* STMicroelectronics magnetometers driver
*
* Copyright 2012-2013 STMicroelectronics Inc.
*
* Denis Ciocca <denis.ciocca@st.com>
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/iio/iio.h>
#include <linux/iio/buffer.h>
#include <linux/iio/trigger.h>
#include <linux/iio/triggered_buffer.h>
#include <linux/iio/common/st_sensors.h>
#include "st_magn.h"
int st_magn_trig_set_state(struct iio_trigger *trig, bool state)
{
struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);
return st_sensors_set_dataready_irq(indio_dev, state);
}
static int st_magn_buffer_postenable(struct iio_dev *indio_dev)
{
return st_sensors_set_enable(indio_dev, true);
}
static int st_magn_buffer_predisable(struct iio_dev *indio_dev)
{
return st_sensors_set_enable(indio_dev, false);
}
static const struct iio_buffer_setup_ops st_magn_buffer_setup_ops = {
.postenable = &st_magn_buffer_postenable,
.predisable = &st_magn_buffer_predisable,
};
int st_magn_allocate_ring(struct iio_dev *indio_dev)
{
return devm_iio_triggered_buffer_setup(indio_dev->dev.parent, indio_dev,
NULL, &st_sensors_trigger_handler, &st_magn_buffer_setup_ops);
}
MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
MODULE_DESCRIPTION("STMicroelectronics magnetometers buffer");
MODULE_LICENSE("GPL v2");
|
