linux/drivers/iio/multiplexer/iio-mux.c

// SPDX-License-Identifier: GPL-2.0
/*
 * IIO multiplexer driver
 *
 * Copyright (C) 2017 Axentia Technologies AB
 *
 * Author: Peter Rosin <[email protected]>
 */

#include <linux/err.h>
#include <linux/iio/consumer.h>
#include <linux/iio/iio.h>
#include <linux/mod_devicetable.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/mux/consumer.h>
#include <linux/platform_device.h>
#include <linux/property.h>

struct mux_ext_info_cache { … };

struct mux_child { … };

struct mux { … };

static int iio_mux_select(struct mux *mux, int idx)
{ … }

static void iio_mux_deselect(struct mux *mux)
{ … }

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

static int mux_read_avail(struct iio_dev *indio_dev,
			  struct iio_chan_spec const *chan,
			  const int **vals, int *type, int *length,
			  long mask)
{ … }

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

static const struct iio_info mux_info = …;

static ssize_t mux_read_ext_info(struct iio_dev *indio_dev, uintptr_t private,
				 struct iio_chan_spec const *chan, char *buf)
{ … }

static ssize_t mux_write_ext_info(struct iio_dev *indio_dev, uintptr_t private,
				  struct iio_chan_spec const *chan,
				  const char *buf, size_t len)
{ … }

static int mux_configure_channel(struct device *dev, struct mux *mux,
				 u32 state, const char *label, int idx)
{ … }

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

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

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

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