iio_powrms.c File Reference

Source code file for IIO POWRMS example. More...

#include "iio_powrms.h"
#include <stdio.h>
#include <inttypes.h>
#include <stdlib.h>
#include <string.h>
#include "no_os_error.h"
#include "no_os_alloc.h"
#include "common_data.h"
#include "powrms_data_processing.h"
#include "powrms_utils.h"

Include dependency graph for iio_powrms.c:

Macros
#define	POWRMS_VOLTAGE_CHANNEL(_idx, _name)
#define	POWRMS_POWER_CHANNEL(_idx, _name)
#define	POWRMS_PRECISION_CHANNEL(_idx, _name)
#define	POWRMS_POLY_CALIB_CHANNEL(_idx, _name)
#define	POWRMS_POLY_CALIB_REVERSE_CHANNEL(_idx, _name)

Functions
int	powrms_eeprom_read_v_temp_comp_val (int32_t *value)
	Read voltage temperature compensation value from EEPROM.
int	powrms_eeprom_read_def_v_temp_comp_val (int32_t *value)
	Read default voltage temperature compensation value from EEPROM.
int	powrms_eeprom_write_v_temp_comp_val (int32_t value)
	Write voltage temperature compensation value to EEPROM.
int	powrms_eeprom_write_def_v_temp_comp_val (int32_t value)
	Write default voltage temperature compensation value to EEPROM.
int	powrms_set_temperature_compensation_value (float value)
float	powrms_get_temperature_compensation_value (void)
int	powrms_set_temperature_compensation_value_raw (int32_t raw_value)
int32_t	powrms_get_temperature_compensation_value_raw (void)
int	powrms_buffers_init (void)
void	powrms_buffers_cleanup (void)
int	powrms_push_vin0 (float value)
int	powrms_push_vin1 (float value)
int	powrms_push_p_fwd (float value)
int	powrms_push_p_rev (float value)
int	powrms_get_latest_vin0 (float *value)
int	powrms_get_latest_vin1 (float *value)
int	powrms_get_latest_p_fwd (float *value)
int	powrms_get_latest_p_rev (float *value)
int	powrms_set_precision_value (int index, float value)
float	powrms_get_precision_value (int index)
int	powrms_set_precision_array (const float *values, int count)
int	powrms_get_precision_array (float *values, int max_count)
int	powrms_set_precision_value_raw (int index, int32_t raw_value)
int32_t	powrms_get_precision_value_raw (int index)
int	powrms_set_precision_array_raw (const int32_t *raw_values, int count)
int	powrms_get_precision_array_raw (int32_t *raw_values, int max_count)
int	powrms_set_precision_value_reverse (int index, float value)
float	powrms_get_precision_value_reverse (int index)
int	powrms_set_precision_array_reverse (const float *values, int count)
int	powrms_get_precision_array_reverse (float *values, int max_count)
int	powrms_set_precision_value_raw_reverse (int index, int32_t raw_value)
int32_t	powrms_get_precision_value_raw_reverse (int index)
int	powrms_set_precision_array_raw_reverse (const int32_t *raw_values, int count)
int	powrms_get_precision_array_raw_reverse (int32_t *raw_values, int max_count)
int	powrms_set_frequency_range (int index, uint32_t frequency_MHz)
uint32_t	powrms_get_frequency_range (int index)
int	powrms_set_frequency_ranges (const uint32_t *frequencies, int count)
int	powrms_get_frequency_ranges (uint32_t *frequencies, int max_count)

Variables
struct powrms_variables	input_variables [VARIABLE_NUMBER]
struct iio_attribute	powrms_voltage_channel_attributes []
struct iio_attribute	powrms_precision_attributes []
struct iio_attribute	powrms_poly_calib_attributes []
struct iio_attribute	powrms_poly_calib_reverse_attributes []
struct iio_attribute	powrms_global_attributes []
struct scan_type	powrms_scan_type
struct iio_device	powrms_iio_descriptor
IIO_BUFF_TYPE	iio_data_buffer_loc [MAX_SIZE_BASE_ADDR] = {0}
struct no_os_circular_buffer *	powrms_vin0_buffer = NULL
struct no_os_circular_buffer *	powrms_vin1_buffer = NULL
struct no_os_circular_buffer *	powrms_p_fwd_buffer = NULL
struct no_os_circular_buffer *	powrms_p_rev_buffer = NULL

Detailed Description

Source code file for IIO POWRMS example.

Author

rober.nosp@m.t.bu.nosp@m.dai@a.nosp@m.nalo.nosp@m.g.com

Copyright 2025(c) Analog Devices, Inc.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of Analog Devices, Inc. nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES, INC. “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Macro Definition Documentation

POWRMS_POLY_CALIB_CHANNEL

#define POWRMS_POLY_CALIB_CHANNEL	(		_idx,
			_name )

Value:

{                                                                           \
.name = _name, .ch_type = IIO_VOLTAGE, .channel = _idx,                     \
.scan_index = -1, .indexed = true, .scan_type = NULL,                      \
.attributes = powrms_poly_calib_attributes, .ch_out = false                \
}

POWRMS_POLY_CALIB_REVERSE_CHANNEL

#define POWRMS_POLY_CALIB_REVERSE_CHANNEL	(		_idx,
			_name )

Value:

{                                                                           \
.name = _name, .ch_type = IIO_VOLTAGE, .channel = _idx,                     \
.scan_index = -1, .indexed = true, .scan_type = NULL,                      \
.attributes = powrms_poly_calib_reverse_attributes, .ch_out = false        \
}

POWRMS_POWER_CHANNEL

#define POWRMS_POWER_CHANNEL	(		_idx,
			_name )

Value:

{                                                                           \
.name = _name, .ch_type = IIO_POWER, .channel = _idx,                     \
.scan_index = -1, .indexed = true, .scan_type = NULL,                      \
.attributes = powrms_voltage_channel_attributes, .ch_out = false            \
}

POWRMS_PRECISION_CHANNEL

#define POWRMS_PRECISION_CHANNEL	(		_idx,
			_name )

Value:

{                                                                           \
.name = _name, .ch_type = IIO_VOLTAGE, .channel = _idx,                     \
.scan_index = -1, .indexed = true, .scan_type = NULL,                      \
.attributes = powrms_precision_attributes, .ch_out = false                 \
}

POWRMS_VOLTAGE_CHANNEL

#define POWRMS_VOLTAGE_CHANNEL	(		_idx,
			_name )

Value:

{                                                                           \
.name = _name, .ch_type = IIO_VOLTAGE, .channel = _idx,                     \
.scan_index = -1, .indexed = true, .scan_type = NULL,                      \
.attributes = powrms_voltage_channel_attributes, .ch_out = false            \
}

Function Documentation

powrms_buffers_cleanup()

void powrms_buffers_cleanup

(

void

)

powrms_buffers_init()

int powrms_buffers_init

(

void

)

powrms_eeprom_read_def_v_temp_comp_val()

int powrms_eeprom_read_def_v_temp_comp_val

(

int32_t *

value

)

Read default voltage temperature compensation value from EEPROM.

This function reads the default voltage temperature compensation value using single-byte reads to avoid I2C bus blocking issues that can occur with large transfers. The int32_t value is read byte by byte and reconstructed in little-endian format.

powrms_eeprom_read_v_temp_comp_val()

int powrms_eeprom_read_v_temp_comp_val

(

int32_t *

value

)

Read voltage temperature compensation value from EEPROM.

This function reads the voltage temperature compensation value using single-byte reads to avoid I2C bus blocking issues that can occur with large transfers. The int32_t value is read byte by byte and reconstructed in little-endian format.

powrms_eeprom_write_def_v_temp_comp_val()

int powrms_eeprom_write_def_v_temp_comp_val

(

int32_t

value

)

Write default voltage temperature compensation value to EEPROM.

This function writes the default voltage temperature compensation value using single-byte writes to avoid I2C bus blocking issues that can occur with large transfers. The int32_t value is broken down into bytes and written individually in little-endian format.

powrms_eeprom_write_v_temp_comp_val()

int powrms_eeprom_write_v_temp_comp_val

(

int32_t

value

)

Write voltage temperature compensation value to EEPROM.

This function writes the voltage temperature compensation value using single-byte writes to avoid I2C bus blocking issues that can occur with large transfers. The int32_t value is broken down into bytes and written individually in little-endian format.

powrms_get_frequency_range()

uint32_t powrms_get_frequency_range

(

int

index

)

powrms_get_frequency_ranges()

int powrms_get_frequency_ranges	(	uint32_t *	frequencies,
		int	max_count )

powrms_get_latest_p_fwd()

int powrms_get_latest_p_fwd

(

float *

value

)

powrms_get_latest_p_rev()

int powrms_get_latest_p_rev

(

float *

value

)

powrms_get_latest_vin0()

int powrms_get_latest_vin0

(

float *

value

)

powrms_get_latest_vin1()

int powrms_get_latest_vin1

(

float *

value

)

powrms_get_precision_array()

int powrms_get_precision_array	(	float *	values,
		int	max_count )

powrms_get_precision_array_raw()

int powrms_get_precision_array_raw	(	int32_t *	raw_values,
		int	max_count )

powrms_get_precision_array_raw_reverse()

int powrms_get_precision_array_raw_reverse	(	int32_t *	raw_values,
		int	max_count )

powrms_get_precision_array_reverse()

int powrms_get_precision_array_reverse	(	float *	values,
		int	max_count )

powrms_get_precision_value()

float powrms_get_precision_value

(

int

index

)

powrms_get_precision_value_raw()

int32_t powrms_get_precision_value_raw

(

int

index

)

powrms_get_precision_value_raw_reverse()

int32_t powrms_get_precision_value_raw_reverse

(

int

index

)

powrms_get_precision_value_reverse()

float powrms_get_precision_value_reverse

(

int

index

)

powrms_get_temperature_compensation_value()

float powrms_get_temperature_compensation_value

(

void

)

powrms_get_temperature_compensation_value_raw()

int32_t powrms_get_temperature_compensation_value_raw

(

void

)

powrms_push_p_fwd()

int powrms_push_p_fwd

(

float

value

)

powrms_push_p_rev()

int powrms_push_p_rev

(

float

value

)

powrms_push_vin0()

int powrms_push_vin0

(

float

value

)

powrms_push_vin1()

int powrms_push_vin1

(

float

value

)

powrms_set_frequency_range()

int powrms_set_frequency_range	(	int	index,
		uint32_t	frequency_MHz )

powrms_set_frequency_ranges()

int powrms_set_frequency_ranges	(	const uint32_t *	frequencies,
		int	count )

powrms_set_precision_array()

int powrms_set_precision_array	(	const float *	values,
		int	count )

powrms_set_precision_array_raw()

int powrms_set_precision_array_raw	(	const int32_t *	raw_values,
		int	count )

powrms_set_precision_array_raw_reverse()

int powrms_set_precision_array_raw_reverse	(	const int32_t *	raw_values,
		int	count )

powrms_set_precision_array_reverse()

int powrms_set_precision_array_reverse	(	const float *	values,
		int	count )

powrms_set_precision_value()

int powrms_set_precision_value	(	int	index,
		float	value )

powrms_set_precision_value_raw()

int powrms_set_precision_value_raw	(	int	index,
		int32_t	raw_value )

powrms_set_precision_value_raw_reverse()

int powrms_set_precision_value_raw_reverse	(	int	index,
		int32_t	raw_value )

powrms_set_precision_value_reverse()

int powrms_set_precision_value_reverse	(	int	index,
		float	value )

powrms_set_temperature_compensation_value()

int powrms_set_temperature_compensation_value

(

float

value

)

powrms_set_temperature_compensation_value_raw()

int powrms_set_temperature_compensation_value_raw

(

int32_t

raw_value

)

Variable Documentation

iio_data_buffer_loc

IIO_BUFF_TYPE iio_data_buffer_loc[MAX_SIZE_BASE_ADDR] = {0}

input_variables

struct powrms_variables input_variables[VARIABLE_NUMBER]

extern

powrms_global_attributes

struct iio_attribute powrms_global_attributes[]

powrms_iio_descriptor

struct iio_device powrms_iio_descriptor

Initial value:

= {
    .num_ch = IIO_POWRMS_NUM_CHANNELS,
    .channels = iio_powrms_channels,
    .attributes = powrms_global_attributes,
    .debug_attributes = NULL,
    .buffer_attributes = NULL,
    .pre_enable = NULL,
    .post_disable = NULL,
    .trigger_handler = (int32_t(*)())NULL,
    .submit = NULL,
}

powrms_p_fwd_buffer

struct no_os_circular_buffer* powrms_p_fwd_buffer = NULL

powrms_p_rev_buffer

struct no_os_circular_buffer* powrms_p_rev_buffer = NULL

powrms_poly_calib_attributes

struct iio_attribute powrms_poly_calib_attributes[]

powrms_poly_calib_reverse_attributes

struct iio_attribute powrms_poly_calib_reverse_attributes[]

powrms_precision_attributes

struct iio_attribute powrms_precision_attributes[]

powrms_scan_type

struct scan_type powrms_scan_type

Initial value:

= {
    .sign = 's',
    .realbits = IIO_SCAN_REALBITS,
    .storagebits = IIO_SCAN_STORAGEBITS,
    .shift = IIO_SCAN_SHIFT,
    .is_big_endian = false
}

powrms_vin0_buffer

struct no_os_circular_buffer* powrms_vin0_buffer = NULL

powrms_vin1_buffer

struct no_os_circular_buffer* powrms_vin1_buffer = NULL

powrms_voltage_channel_attributes

struct iio_attribute powrms_voltage_channel_attributes[]

Initial value:

= {
    {
        .name = "raw",
        .show = read_ch_raw,
        .priv = IIO_ATTR_SCALE,
    },
    {
        .name = "scale",
        .show = read_ch_attr,
        .priv = IIO_ATTR_SCALE,
    },
    {
        .name = "offset",
        .show = read_ch_attr,
        .priv = IIO_ATTR_OFFSET,
    },
    END_ATTRIBUTES_ARRAY,
}