linux/drivers/iio/adc/ad7887.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * AD7887 SPI ADC driver
 *
 * Copyright 2010-2011 Analog Devices Inc.
 */

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

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

#include <linux/iio/trigger_consumer.h>
#include <linux/iio/triggered_buffer.h>

#include <linux/platform_data/ad7887.h>

#define AD7887_REF_DIS …
#define AD7887_DUAL …
#define AD7887_CH_AIN1 …
#define AD7887_CH_AIN0 …
#define AD7887_PM_MODE1 …
#define AD7887_PM_MODE2 …
#define AD7887_PM_MODE3 …
#define AD7887_PM_MODE4 …

enum ad7887_channels { … };

/**
 * struct ad7887_chip_info - chip specifc information
 * @int_vref_mv:	the internal reference voltage
 * @channels:		channels specification
 * @num_channels:	number of channels
 * @dual_channels:	channels specification in dual mode
 * @num_dual_channels:	number of channels in dual mode
 */
struct ad7887_chip_info { … };

struct ad7887_state { … };

enum ad7887_supported_device_ids { … };

static int ad7887_ring_preenable(struct iio_dev *indio_dev)
{ … }

static int ad7887_ring_postdisable(struct iio_dev *indio_dev)
{ … }

static irqreturn_t ad7887_trigger_handler(int irq, void *p)
{ … }

static const struct iio_buffer_setup_ops ad7887_ring_setup_ops = …;

static int ad7887_scan_direct(struct ad7887_state *st, unsigned ch)
{ … }

static int ad7887_read_raw(struct iio_dev *indio_dev,
			   struct iio_chan_spec const *chan,
			   int *val,
			   int *val2,
			   long m)
{ … }

#define AD7887_CHANNEL(x) …

static const struct iio_chan_spec ad7887_channels[] = …;

static const struct iio_chan_spec ad7887_dual_channels[] = …;

static const struct ad7887_chip_info ad7887_chip_info_tbl[] = …;

static const struct iio_info ad7887_info = …;

static void ad7887_reg_disable(void *data)
{ … }

static int ad7887_probe(struct spi_device *spi)
{ … }

static const struct spi_device_id ad7887_id[] = …;
MODULE_DEVICE_TABLE(spi, ad7887_id);

static struct spi_driver ad7887_driver = …;
module_spi_driver(…) …;

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