linux/drivers/iio/accel/mma7660.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Freescale MMA7660FC 3-Axis Accelerometer
 *
 * Copyright (c) 2016, Intel Corporation.
 *
 * IIO driver for Freescale MMA7660FC; 7-bit I2C address: 0x4c.
 */

#include <linux/i2c.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>

#define MMA7660_DRIVER_NAME …

#define MMA7660_REG_XOUT …
#define MMA7660_REG_YOUT …
#define MMA7660_REG_ZOUT …
#define MMA7660_REG_OUT_BIT_ALERT …

#define MMA7660_REG_MODE …
#define MMA7660_REG_MODE_BIT_MODE …
#define MMA7660_REG_MODE_BIT_TON …

#define MMA7660_I2C_READ_RETRIES …

/*
 * The accelerometer has one measurement range:
 *
 * -1.5g - +1.5g (6-bit, signed)
 *
 * scale = (1.5 + 1.5) * 9.81 / (2^6 - 1)	= 0.467142857
 */

#define MMA7660_SCALE_AVAIL …

static const int mma7660_nscale = …;

enum mma7660_mode { … };

struct mma7660_data { … };

static const struct iio_mount_matrix *
mma7660_get_mount_matrix(const struct iio_dev *indio_dev,
			const struct iio_chan_spec *chan)
{ … }

static const struct iio_chan_spec_ext_info mma7660_ext_info[] = …;

static IIO_CONST_ATTR(in_accel_scale_available, MMA7660_SCALE_AVAIL);

static struct attribute *mma7660_attributes[] = …;

static const struct attribute_group mma7660_attribute_group = …;

#define MMA7660_CHANNEL(reg, axis) …

static const struct iio_chan_spec mma7660_channels[] = …;

static int mma7660_set_mode(struct mma7660_data *data,
				enum mma7660_mode mode)
{ … }

static int mma7660_read_accel(struct mma7660_data *data, u8 address)
{ … }

static int mma7660_read_raw(struct iio_dev *indio_dev,
				struct iio_chan_spec const *chan,
				int *val, int *val2, long mask)
{ … }

static const struct iio_info mma7660_info = …;

static int mma7660_probe(struct i2c_client *client)
{ … }

static void mma7660_remove(struct i2c_client *client)
{ … }

static int mma7660_suspend(struct device *dev)
{ … }

static int mma7660_resume(struct device *dev)
{ … }

static DEFINE_SIMPLE_DEV_PM_OPS(mma7660_pm_ops, mma7660_suspend,
				mma7660_resume);

static const struct i2c_device_id mma7660_i2c_id[] = …;
MODULE_DEVICE_TABLE(i2c, mma7660_i2c_id);

static const struct of_device_id mma7660_of_match[] = …;
MODULE_DEVICE_TABLE(of, mma7660_of_match);

static const struct acpi_device_id mma7660_acpi_id[] = …;

MODULE_DEVICE_TABLE(acpi, mma7660_acpi_id);

static struct i2c_driver mma7660_driver = …;

module_i2c_driver(…) …;

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