linux/drivers/iio/common/st_sensors/st_sensors_trigger.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * STMicroelectronics sensors trigger library driver
 *
 * Copyright 2012-2013 STMicroelectronics Inc.
 *
 * Denis Ciocca <[email protected]>
 */

#include <linux/kernel.h>
#include <linux/iio/iio.h>
#include <linux/iio/trigger.h>
#include <linux/interrupt.h>
#include <linux/regmap.h>
#include <linux/iio/common/st_sensors.h>
#include "st_sensors_core.h"

/**
 * st_sensors_new_samples_available() - check if more samples came in
 * @indio_dev: IIO device reference.
 * @sdata: Sensor data.
 *
 * returns:
 * false - no new samples available or read error
 * true - new samples available
 */
static bool st_sensors_new_samples_available(struct iio_dev *indio_dev,
					     struct st_sensor_data *sdata)
{ … }

/**
 * st_sensors_irq_handler() - top half of the IRQ-based triggers
 * @irq: irq number
 * @p: private handler data
 */
static irqreturn_t st_sensors_irq_handler(int irq, void *p)
{ … }

/**
 * st_sensors_irq_thread() - bottom half of the IRQ-based triggers
 * @irq: irq number
 * @p: private handler data
 */
static irqreturn_t st_sensors_irq_thread(int irq, void *p)
{ … }

int st_sensors_allocate_trigger(struct iio_dev *indio_dev,
				const struct iio_trigger_ops *trigger_ops)
{ … }
EXPORT_SYMBOL_NS(…);

int st_sensors_validate_device(struct iio_trigger *trig,
			       struct iio_dev *indio_dev)
{ … }
EXPORT_SYMBOL_NS(…);