linux/drivers/iio/pressure/cros_ec_baro.c

// SPDX-License-Identifier: GPL-2.0
/*
 * cros_ec_baro - Driver for barometer sensor behind CrosEC.
 *
 * Copyright (C) 2017 Google, Inc
 */

#include <linux/device.h>
#include <linux/iio/buffer.h>
#include <linux/iio/common/cros_ec_sensors_core.h>
#include <linux/iio/iio.h>
#include <linux/iio/kfifo_buf.h>
#include <linux/iio/trigger.h>
#include <linux/iio/triggered_buffer.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/kernel.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/platform_data/cros_ec_commands.h>
#include <linux/platform_data/cros_ec_proto.h>
#include <linux/platform_device.h>

/*
 * One channel for pressure, the other for timestamp.
 */
#define CROS_EC_BARO_MAX_CHANNELS …

/* State data for ec_sensors iio driver. */
struct cros_ec_baro_state { … };

static int cros_ec_baro_read(struct iio_dev *indio_dev,
			     struct iio_chan_spec const *chan,
			     int *val, int *val2, long mask)
{ … }

static int cros_ec_baro_write(struct iio_dev *indio_dev,
			      struct iio_chan_spec const *chan,
			      int val, int val2, long mask)
{ … }

static const struct iio_info cros_ec_baro_info = …;

static int cros_ec_baro_probe(struct platform_device *pdev)
{ … }

static const struct platform_device_id cros_ec_baro_ids[] = …;
MODULE_DEVICE_TABLE(platform, cros_ec_baro_ids);

static struct platform_driver cros_ec_baro_platform_driver = …;
module_platform_driver(…) …;

MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;