ad405x_iio.c File Reference

Implementation of AD405X IIO Application Interface. More...

#include <string.h>
#include <math.h>
#include "app_config.h"
#include "app_support.h"
#include "ad405x.h"
#include "ad405x_iio.h"
#include "ad405x_user_config.h"
#include "common.h"
#include "no_os_delay.h"
#include "no_os_error.h"
#include "no_os_gpio.h"
#include "no_os_pwm.h"
#include "no_os_alloc.h"
#include "no_os_util.h"
#include "iio_trigger.h"
#include "version.h"

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Macros
#define	AD405X_CHN_ATTR(_name, _priv)
#define	AD405X_CHN_AVAIL_ATTR(_name, _priv)
#define	NUM_OF_IIO_DEVICES   2
#define	AD405X_IIO_TRIGGER_NAME   ACTIVE_DEVICE_NAME"_iio_trigger"
#define	DEV_AD4050   "ad4050"
#define	DEV_AD4052   "ad4052"
#define	DEV_AD4060   "ad4060"
#define	DEV_AD4062   "ad4062"
#define	COMPENSATION_FACTOR   1.1
#define	CONVERSION_TIME_NS   250
#define	MAX_SAMPLING_PERIOD_NSEC   2500000

Enumerations
enum	ad405x_attribute_ids {   ADC_RAW ,   ADC_SCALE ,   ADC_OFFSET ,   ADC_OPERATING_MODE ,   ADC_SAMPLE_RATE ,   RESTART_IIO ,   ADC_BURST_SAMPLE_RATE ,   ADC_FILTER_LENGTH }

Functions
void	data_capture_callback (void *context)
	Interrupt Service Routine to monitor data ready event.
int	iio_params_deinit (void)
	DeInitialize the IIO params.
int32_t	iio_ad405x_initialize (void)
	Initialize the IIO interface for AD405X IIO device.
void	iio_ad405x_event_handler (void)
	Run the AD405X IIO event handler.

Variables
struct ad405x_dev *	p_ad405x_dev = NULL
struct iio_device *	p_iio_ad405x_dev [NUM_OF_IIO_DEVICES]
struct iio_hw_trig *	ad405x_hw_trig_desc
enum ad405x_operation_mode	ad405x_operating_mode = AD405X_ADC_MODE_OP
enum ad405x_interface_modes	ad405x_interface_mode = SPI_DMA
volatile bool	data_ready = false
volatile uint8_t *	buff_start_addr
volatile struct iio_device_data *	iio_dev_data_g
uint8_t	bytes_per_sample
struct no_os_spi_msg	ad405x_spi_msg
struct stm32_spi_init_param *	spi_init_param

Detailed Description

Implementation of AD405X IIO Application Interface.

This module acts as an interface for AD405X IIO device

Copyright (c) 2022-2025 Analog Devices, Inc.

This software is proprietary to Analog Devices, Inc. and its licensors. By using this software you agree to the terms of the associated Analog Devices Software License Agreement.

Macro Definition Documentation

AD405X_CHN_ATTR

#define AD405X_CHN_ATTR	(		_name,
			_priv
	)

Value:

        {\
        .name = _name,\
        .priv = _priv,\
        .show = iio_ad405x_attr_get,\
        .store = iio_ad405x_attr_set\
}

AD405X_CHN_AVAIL_ATTR

#define AD405X_CHN_AVAIL_ATTR	(		_name,
			_priv
	)

Value:

    {\
    .name = _name,\
    .priv = _priv,\
    .show = iio_ad405x_attr_available_get,\
    .store = iio_ad405x_attr_available_set\
}

AD405X_IIO_TRIGGER_NAME

#define AD405X_IIO_TRIGGER_NAME   ACTIVE_DEVICE_NAME"_iio_trigger"

COMPENSATION_FACTOR

#define COMPENSATION_FACTOR   1.1

CONVERSION_TIME_NS

#define CONVERSION_TIME_NS   250

DEV_AD4050

#define DEV_AD4050   "ad4050"

DEV_AD4052

#define DEV_AD4052   "ad4052"

DEV_AD4060

#define DEV_AD4060   "ad4060"

DEV_AD4062

#define DEV_AD4062   "ad4062"

MAX_SAMPLING_PERIOD_NSEC

#define MAX_SAMPLING_PERIOD_NSEC   2500000

NUM_OF_IIO_DEVICES

#define NUM_OF_IIO_DEVICES   2

Enumeration Type Documentation

ad405x_attribute_ids

enum ad405x_attribute_ids

Enumerator
ADC_RAW
ADC_SCALE
ADC_OFFSET
ADC_OPERATING_MODE
ADC_SAMPLE_RATE
RESTART_IIO
ADC_BURST_SAMPLE_RATE
ADC_FILTER_LENGTH

Function Documentation

data_capture_callback()

void data_capture_callback

(

void *

context

)

Interrupt Service Routine to monitor data ready event.

Parameters

context[in]

- Callback context (unused)

Returns

none

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iio_ad405x_event_handler()

void iio_ad405x_event_handler

(

void

)

Run the AD405X IIO event handler.

Returns

none

This function monitors the new IIO client event

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iio_ad405x_initialize()

int32_t iio_ad405x_initialize

(

void

)

Initialize the IIO interface for AD405X IIO device.

Returns

0 in case of success,negative error code otherwise

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iio_params_deinit()

int iio_params_deinit

(

void

)

DeInitialize the IIO params.

Returns

0 in case of success, negative error code otherwise

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Variable Documentation

ad405x_hw_trig_desc

struct iio_hw_trig* ad405x_hw_trig_desc

ad405x_interface_mode

enum ad405x_interface_modes ad405x_interface_mode = SPI_DMA

ad405x_operating_mode

enum ad405x_operation_mode ad405x_operating_mode = AD405X_ADC_MODE_OP

ad405x_spi_msg

struct no_os_spi_msg ad405x_spi_msg

buff_start_addr

volatile uint8_t* buff_start_addr

bytes_per_sample

uint8_t bytes_per_sample

data_ready

volatile bool data_ready = false

iio_dev_data_g

volatile struct iio_device_data* iio_dev_data_g

p_ad405x_dev

struct ad405x_dev* p_ad405x_dev = NULL

p_iio_ad405x_dev

struct iio_device* p_iio_ad405x_dev[NUM_OF_IIO_DEVICES]

spi_init_param

struct stm32_spi_init_param* spi_init_param