iio_ad5933.c File Reference

Implementation of the AD5933 IIO driver. More...

#include <errno.h>
#include <inttypes.h>
#include <stdio.h>
#include <math.h>
#include "iio_ad5933.h"
#include "ad5933.h"
#include "iio.h"
#include "no_os_alloc.h"
#include "no_os_util.h"
#include <string.h>

Include dependency graph for iio_ad5933.c:

Macros
#define	AD5933_TEMP_SCALE_INT   0
#define	AD5933_TEMP_SCALE_MICRO   31250
#define	AD5933_INIT_EXCITATION_TIME_ms   100
#define	DECIMAL_TO_MICROS(x)
#define	MICROS_TO_DECIMAL(x)
#define	AD5933_STATE_SWEEP_DONE   0x0C
#define	AD5933_CH_RW_ATTR(_name, _priv)
#define	AD5933_CH_RO_ATTR(_name, _priv)

Enumerations
enum	ad5933_iio_chan {   AD5933_CH_REAL ,   AD5933_CH_IMAG ,   AD5933_CH_TEMP }
enum	ad5933_iio_attr_priv {   AD5933_ATTR_TEMP_SCALE ,   AD5933_ATTR_PGA_GAIN ,   AD5933_ATTR_PGA_GAIN_AVAILABLE ,   AD5933_ATTR_OUTPUT_RANGE ,   AD5933_ATTR_OUTPUT_RANGE_AVAILABLE ,   AD5933_ATTR_START_FREQ ,   AD5933_ATTR_FREQ_INCREMENT ,   AD5933_ATTR_FREQ_POINTS ,   AD5933_ATTR_SETTLING_CYCLES ,   AD5933_ATTR_SWEEP_INITIALIZED ,   AD5933_ATTR_SWEEP_STARTED ,   AD5933_ATTR_CURRENT_OUTPUT_FREQ ,   AD5933_ATTR_REPEAT_MEASUREMENT ,   AD5933_ATTR_INCREMENTED_MEASUREMENT ,   AD5933_ATTR_CLK_FREQ ,   AD5933_ATTR_MIN_OUTPUT_FREQ ,   AD5933_ATTR_MAX_OUTPUT_FREQ }

Functions
int	ad5933_iio_init (struct ad5933_iio_dev **iio_dev, struct ad5933_iio_dev_init_param *init_param)
	Initialize the AD5933 IIO driver.
int	ad5933_iio_remove (struct ad5933_iio_dev *desc)
	Free the resources allocated by ad5933_iio_init().

Detailed Description

Implementation of the AD5933 IIO driver.

Author

Mark John Lerry Casero (markj.nosp@m.ohnl.nosp@m.erry..nosp@m.case.nosp@m.ro@an.nosp@m.alog.nosp@m..com)

Copyright 2026(c) Analog Devices, Inc.

SPDX-License-Identifier: BSD-3-Clause

Macro Definition Documentation

AD5933_CH_RO_ATTR

#define AD5933_CH_RO_ATTR	(		_name,
			_priv )

Value:

    {                   \
        .name = _name,          \
        .priv = _priv,          \
        .show = ad5933_iio_read_attr,   \
    }

AD5933_CH_RW_ATTR

#define AD5933_CH_RW_ATTR	(		_name,
			_priv )

Value:

    {                   \
        .name = _name,          \
        .priv = _priv,          \
        .show = ad5933_iio_read_attr,   \
        .store = ad5933_iio_write_attr,     \
    }

AD5933_INIT_EXCITATION_TIME_ms

#define AD5933_INIT_EXCITATION_TIME_ms   100

AD5933_STATE_SWEEP_DONE

#define AD5933_STATE_SWEEP_DONE   0x0C

AD5933_TEMP_SCALE_INT

#define AD5933_TEMP_SCALE_INT   0

AD5933_TEMP_SCALE_MICRO

#define AD5933_TEMP_SCALE_MICRO   31250

DECIMAL_TO_MICROS

#define DECIMAL_TO_MICROS

(

x

)

Value:

((x) * 1e6)

MICROS_TO_DECIMAL

#define MICROS_TO_DECIMAL

(

x

)

Value:

((x) / 1e6)

Enumeration Type Documentation

ad5933_iio_attr_priv

enum ad5933_iio_attr_priv

Device-attribute selector carried through iio_attribute.priv.

Enumerator
AD5933_ATTR_TEMP_SCALE
AD5933_ATTR_PGA_GAIN
AD5933_ATTR_PGA_GAIN_AVAILABLE
AD5933_ATTR_OUTPUT_RANGE
AD5933_ATTR_OUTPUT_RANGE_AVAILABLE
AD5933_ATTR_START_FREQ
AD5933_ATTR_FREQ_INCREMENT
AD5933_ATTR_FREQ_POINTS
AD5933_ATTR_SETTLING_CYCLES
AD5933_ATTR_SWEEP_INITIALIZED
AD5933_ATTR_SWEEP_STARTED
AD5933_ATTR_CURRENT_OUTPUT_FREQ
AD5933_ATTR_REPEAT_MEASUREMENT
AD5933_ATTR_INCREMENTED_MEASUREMENT
AD5933_ATTR_CLK_FREQ
AD5933_ATTR_MIN_OUTPUT_FREQ
AD5933_ATTR_MAX_OUTPUT_FREQ

ad5933_iio_chan

enum ad5933_iio_chan

Per-channel selector carried through iio_channel.address.

Enumerator
AD5933_CH_REAL
AD5933_CH_IMAG
AD5933_CH_TEMP

Function Documentation

ad5933_iio_init()

int ad5933_iio_init	(	struct ad5933_iio_dev **	iio_dev,
		struct ad5933_iio_dev_init_param *	init_param )

Initialize the AD5933 IIO driver.

Parameters

iio_dev	- The AD5933 IIO device descriptor.
init_param	- The AD5933 IIO device initialization parameters.

Returns

0 in case of success, negative error code otherwise.

ad5933_iio_remove()

int ad5933_iio_remove

(

struct ad5933_iio_dev *

desc

)

Free the resources allocated by ad5933_iio_init().

Parameters

desc	- The AD5933 IIO device descriptor.

Returns

0 in case of success, negative error code otherwise.