linux/drivers/iio/dac/ti-dac5571.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * ti-dac5571.c - Texas Instruments 8/10/12-bit 1/4-channel DAC driver
 *
 * Copyright (C) 2018 Prevas A/S
 *
 * https://www.ti.com/lit/ds/symlink/dac5571.pdf
 * https://www.ti.com/lit/ds/symlink/dac6571.pdf
 * https://www.ti.com/lit/ds/symlink/dac7571.pdf
 * https://www.ti.com/lit/ds/symlink/dac5574.pdf
 * https://www.ti.com/lit/ds/symlink/dac6574.pdf
 * https://www.ti.com/lit/ds/symlink/dac7574.pdf
 * https://www.ti.com/lit/ds/symlink/dac5573.pdf
 * https://www.ti.com/lit/ds/symlink/dac6573.pdf
 * https://www.ti.com/lit/ds/symlink/dac7573.pdf
 * https://www.ti.com/lit/ds/symlink/dac081c081.pdf
 * https://www.ti.com/lit/ds/symlink/dac121c081.pdf
 */

#include <linux/iio/iio.h>
#include <linux/i2c.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/property.h>
#include <linux/regulator/consumer.h>

enum chip_id { … };

struct dac5571_spec { … };

static const struct dac5571_spec dac5571_spec[] = …;

struct dac5571_data { … };

#define DAC5571_POWERDOWN(mode) …
#define DAC5571_POWERDOWN_FLAG …
#define DAC5571_CHANNEL_SELECT …
#define DAC5571_LOADMODE_DIRECT …
#define DAC5571_SINGLE_PWRDWN_BITS …
#define DAC5571_QUAD_PWRDWN_BITS …

static int dac5571_cmd_single(struct dac5571_data *data, int channel, u16 val)
{ … }

static int dac5571_cmd_quad(struct dac5571_data *data, int channel, u16 val)
{ … }

static int dac5571_pwrdwn_single(struct dac5571_data *data, int channel, u8 pwrdwn)
{ … }

static int dac5571_pwrdwn_quad(struct dac5571_data *data, int channel, u8 pwrdwn)
{ … }

static const char *const dac5571_powerdown_modes[] = …;

static int dac5571_get_powerdown_mode(struct iio_dev *indio_dev,
				      const struct iio_chan_spec *chan)
{ … }

static int dac5571_set_powerdown_mode(struct iio_dev *indio_dev,
				      const struct iio_chan_spec *chan,
				      unsigned int mode)
{ … }

static const struct iio_enum dac5571_powerdown_mode = …;

static ssize_t dac5571_read_powerdown(struct iio_dev *indio_dev,
				      uintptr_t private,
				      const struct iio_chan_spec *chan,
				      char *buf)
{ … }

static ssize_t dac5571_write_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_chan_spec_ext_info dac5571_ext_info[] = …;

#define dac5571_CHANNEL(chan, name) …

static const struct iio_chan_spec dac5571_channels[] = …;

static int dac5571_read_raw(struct iio_dev *indio_dev,
			    struct iio_chan_spec const *chan,
			    int *val, int *val2, long mask)
{ … }

static int dac5571_write_raw(struct iio_dev *indio_dev,
			     struct iio_chan_spec const *chan,
			     int val, int val2, long mask)
{ … }

static int dac5571_write_raw_get_fmt(struct iio_dev *indio_dev,
				     struct iio_chan_spec const *chan,
				     long mask)
{ … }

static const struct iio_info dac5571_info = …;

static int dac5571_probe(struct i2c_client *client)
{ … }

static void dac5571_remove(struct i2c_client *i2c)
{ … }

static const struct of_device_id dac5571_of_id[] = …;
MODULE_DEVICE_TABLE(of, dac5571_of_id);

static const struct i2c_device_id dac5571_id[] = …;
MODULE_DEVICE_TABLE(i2c, dac5571_id);

static struct i2c_driver dac5571_driver = …;
module_i2c_driver(…) …;

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