1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * STMicroelectronics pressures driver |
4 | * |
5 | * Copyright 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_pressure.h" |
18 | |
19 | int st_press_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, enable: state); |
24 | } |
25 | |
26 | static int st_press_buffer_postenable(struct iio_dev *indio_dev) |
27 | { |
28 | return st_sensors_set_enable(indio_dev, enable: true); |
29 | } |
30 | |
31 | static int st_press_buffer_predisable(struct iio_dev *indio_dev) |
32 | { |
33 | return st_sensors_set_enable(indio_dev, enable: false); |
34 | } |
35 | |
36 | static const struct iio_buffer_setup_ops st_press_buffer_setup_ops = { |
37 | .postenable = &st_press_buffer_postenable, |
38 | .predisable = &st_press_buffer_predisable, |
39 | }; |
40 | |
41 | int st_press_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_press_buffer_setup_ops); |
45 | } |
46 | |