cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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st_pressure_buffer.c (1182B)

      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
     19int 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, state);
     24}
     25
     26static int st_press_buffer_postenable(struct iio_dev *indio_dev)
     27{
     28	return st_sensors_set_enable(indio_dev, true);
     29}
     30
     31static int st_press_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_press_buffer_setup_ops = {
     37	.postenable = &st_press_buffer_postenable,
     38	.predisable = &st_press_buffer_predisable,
     39};
     40
     41int 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}