linux/drivers/iio/adc/ti-adc12138.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * ADC12130/ADC12132/ADC12138 12-bit plus sign ADC driver
 *
 * Copyright (c) 2016 Akinobu Mita <[email protected]>
 *
 * Datasheet: http://www.ti.com/lit/ds/symlink/adc12138.pdf
 */

#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/completion.h>
#include <linux/clk.h>
#include <linux/property.h>
#include <linux/spi/spi.h>
#include <linux/iio/iio.h>
#include <linux/iio/buffer.h>
#include <linux/iio/trigger.h>
#include <linux/iio/triggered_buffer.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/regulator/consumer.h>

#define ADC12138_MODE_AUTO_CAL …
#define ADC12138_MODE_READ_STATUS …
#define ADC12138_MODE_ACQUISITION_TIME_6 …
#define ADC12138_MODE_ACQUISITION_TIME_10 …
#define ADC12138_MODE_ACQUISITION_TIME_18 …
#define ADC12138_MODE_ACQUISITION_TIME_34 …

#define ADC12138_STATUS_CAL …

enum { … };

struct adc12138 { … };

#define ADC12138_VOLTAGE_CHANNEL(chan) …

#define ADC12138_VOLTAGE_CHANNEL_DIFF(chan1, chan2, si) …

static const struct iio_chan_spec adc12132_channels[] = …;

static const struct iio_chan_spec adc12138_channels[] = …;

static int adc12138_mode_programming(struct adc12138 *adc, u8 mode,
				     void *rx_buf, int len)
{ … }

static int adc12138_read_status(struct adc12138 *adc)
{ … }

static int __adc12138_start_conv(struct adc12138 *adc,
				 struct iio_chan_spec const *channel,
				 void *data, int len)

{ … }

static int adc12138_start_conv(struct adc12138 *adc,
			       struct iio_chan_spec const *channel)
{ … }

static int adc12138_start_and_read_conv(struct adc12138 *adc,
					struct iio_chan_spec const *channel,
					__be16 *data)
{ … }

static int adc12138_read_conv_data(struct adc12138 *adc, __be16 *value)
{ … }

static int adc12138_wait_eoc(struct adc12138 *adc, unsigned long timeout)
{ … }

static int adc12138_adc_conversion(struct adc12138 *adc,
				   struct iio_chan_spec const *channel,
				   __be16 *value)
{ … }

static int adc12138_read_raw(struct iio_dev *iio,
			     struct iio_chan_spec const *channel, int *value,
			     int *shift, long mask)
{ … }

static const struct iio_info adc12138_info = …;

static int adc12138_init(struct adc12138 *adc)
{ … }

static irqreturn_t adc12138_trigger_handler(int irq, void *p)
{ … }

static irqreturn_t adc12138_eoc_handler(int irq, void *p)
{ … }

static int adc12138_probe(struct spi_device *spi)
{ … }

static void adc12138_remove(struct spi_device *spi)
{ … }

static const struct of_device_id adc12138_dt_ids[] = …;
MODULE_DEVICE_TABLE(of, adc12138_dt_ids);

static const struct spi_device_id adc12138_id[] = …;
MODULE_DEVICE_TABLE(spi, adc12138_id);

static struct spi_driver adc12138_driver = …;
module_spi_driver(…) …;

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