linux/drivers/iio/dac/ad5624r_spi.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * AD5624R, AD5644R, AD5664R Digital to analog convertors spi driver
 *
 * Copyright 2010-2011 Analog Devices Inc.
 */

#include <linux/interrupt.h>
#include <linux/fs.h>
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/spi/spi.h>
#include <linux/slab.h>
#include <linux/sysfs.h>
#include <linux/regulator/consumer.h>
#include <linux/module.h>

#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>

#include <asm/unaligned.h>

#include "ad5624r.h"

static int ad5624r_spi_write(struct spi_device *spi,
			     u8 cmd, u8 addr, u16 val, u8 shift)
{ … }

static int ad5624r_read_raw(struct iio_dev *indio_dev,
			   struct iio_chan_spec const *chan,
			   int *val,
			   int *val2,
			   long m)
{ … }

static int ad5624r_write_raw(struct iio_dev *indio_dev,
			       struct iio_chan_spec const *chan,
			       int val,
			       int val2,
			       long mask)
{ … }

static const char * const ad5624r_powerdown_modes[] = …;

static int ad5624r_get_powerdown_mode(struct iio_dev *indio_dev,
	const struct iio_chan_spec *chan)
{ … }

static int ad5624r_set_powerdown_mode(struct iio_dev *indio_dev,
	const struct iio_chan_spec *chan, unsigned int mode)
{ … }

static const struct iio_enum ad5624r_powerdown_mode_enum = …;

static ssize_t ad5624r_read_dac_powerdown(struct iio_dev *indio_dev,
	uintptr_t private, const struct iio_chan_spec *chan, char *buf)
{ … }

static ssize_t ad5624r_write_dac_powerdown(struct iio_dev *indio_dev,
	uintptr_t private, const struct iio_chan_spec *chan, const char *buf,
	size_t len)
{ … }

static const struct iio_info ad5624r_info = …;

static const struct iio_chan_spec_ext_info ad5624r_ext_info[] = …;

#define AD5624R_CHANNEL(_chan, _bits) …

#define DECLARE_AD5624R_CHANNELS(_name, _bits) …

static DECLARE_AD5624R_CHANNELS(ad5624r, 12);
static DECLARE_AD5624R_CHANNELS(ad5644r, 14);
static DECLARE_AD5624R_CHANNELS(ad5664r, 16);

static const struct ad5624r_chip_info ad5624r_chip_info_tbl[] = …;

static int ad5624r_probe(struct spi_device *spi)
{ … }

static void ad5624r_remove(struct spi_device *spi)
{ … }

static const struct spi_device_id ad5624r_id[] = …;
MODULE_DEVICE_TABLE(spi, ad5624r_id);

static struct spi_driver ad5624r_driver = …;
module_spi_driver(…) …;

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