ad579x_iio.c File Reference

AD579x IIO application interface module. More...

#include <string.h>
#include "app_config.h"
#include "ad579x_iio.h"
#include "ad579x_support.h"
#include "ad5791.h"
#include "ad579x_user_config.h"
#include "common.h"
#include "no_os_error.h"
#include "no_os_util.h"
#include "no_os_gpio.h"
#include "no_os_pwm.h"
#include "iio_trigger.h"

Include dependency graph for ad579x_iio.c:

Macros
#define	AD579X_CHN_ATTR(_name, _priv)
#define	AD579X_CHN_AVAIL_ATTR(_name, _priv)
#define	AD579X_CH(_name, _idx, _type)
#define	NUM_OF_IIO_DEVICES   1
#define	AD579X_IIO_TRIGGER_NAME   "ad579x_iio_trigger"
#define	DEFAULT_SCALE   (((float)DAC_CH_SPAN/DAC_MAX_COUNT_BIN_OFFSET)*1000)
#define	BYTES_PER_SAMPLE   sizeof(uint32_t)
#define	CHN_STORAGE_BITS   (BYTES_PER_SAMPLE * 8)
#define	DATA_BUFFER_SIZE   (32768)

Enumerations
enum	ad579x_attribute_ids {   DAC_RAW ,   DAC_SCALE ,   DAC_OFFSET ,   DAC_POWERDOWN ,   DAC_CLR_CODE ,   DAC_LIN_COMP ,   DAC_OUTPUT_AMPLIFIER ,   DAC_POWERDOWN_MODE ,   DAC_CODE_SELECT ,   DAC_SAMPLING_FREQUENCY ,   DAC_LDAC ,   DAC_CLR }
enum	code_format_selection {   TWOS_COMPLEMNT ,   BINARY_OFFSET }

Functions
int32_t	ad579x_set_sampling_rate (uint32_t *sampling_rate)
	Set the sampling rate and get the updated value supported by MCU platform. More...
int	ad579x_get_scale (float *scale)
	Get the IIO scale factor. More...
int	ad579x_get_offset (uint32_t raw, int32_t *offset)
	Get the IIO offset value. More...
int32_t	ad579x_iio_init ()
	Initialize the IIO interface for AD579x IIO device. More...
void	ad579x_iio_event_handler (void)
	Run the AD579x IIO event handler. More...

Variables
struct ad5791_dev *	ad579x_dev_desc = NULL
struct scan_type	ad579x_iio_scan_type

Detailed Description

AD579x IIO application interface module.

Copyright (c) 2023-24 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

AD579X_CH

#define AD579X_CH	(		_name,
			_idx,
			_type
	)

Value:

    {\
    .name = _name, \
    .ch_type = _type,\
    .ch_out = true,\
    .indexed = true,\
    .channel = _idx,\
    .scan_index = _idx,\
    .scan_type = &ad579x_iio_scan_type,\
    .attributes = ad579x_iio_ch_attributes\
}

AD579X_CHN_ATTR

#define AD579X_CHN_ATTR	(		_name,
			_priv
	)

Value:

        {\
        .name = _name,\
        .priv = _priv,\
        .show = ad579x_iio_attr_get,\
        .store = ad579x_iio_attr_set\
}

AD579X_CHN_AVAIL_ATTR

#define AD579X_CHN_AVAIL_ATTR	(		_name,
			_priv
	)

Value:

    {\
    .name = _name,\
    .priv = _priv,\
    .show = ad579x_iio_attr_available_get,\
    .store = ad579x_iio_attr_available_set\
}

AD579X_IIO_TRIGGER_NAME

#define AD579X_IIO_TRIGGER_NAME   "ad579x_iio_trigger"

BYTES_PER_SAMPLE

#define BYTES_PER_SAMPLE   sizeof(uint32_t)

CHN_STORAGE_BITS

#define CHN_STORAGE_BITS   (BYTES_PER_SAMPLE * 8)

DATA_BUFFER_SIZE

#define DATA_BUFFER_SIZE   (32768)

DEFAULT_SCALE

#define DEFAULT_SCALE   (((float)DAC_CH_SPAN/DAC_MAX_COUNT_BIN_OFFSET)*1000)

NUM_OF_IIO_DEVICES

#define NUM_OF_IIO_DEVICES   1

Enumeration Type Documentation

ad579x_attribute_ids

enum ad579x_attribute_ids

Enumerator
DAC_RAW
DAC_SCALE
DAC_OFFSET
DAC_POWERDOWN
DAC_CLR_CODE
DAC_LIN_COMP
DAC_OUTPUT_AMPLIFIER
DAC_POWERDOWN_MODE
DAC_CODE_SELECT
DAC_SAMPLING_FREQUENCY
DAC_LDAC
DAC_CLR

code_format_selection

enum code_format_selection

Enumerator
TWOS_COMPLEMNT
BINARY_OFFSET

Function Documentation

ad579x_get_offset()

int ad579x_get_offset	(	uint32_t	raw,
		int32_t *	offset
	)

Get the IIO offset value.

Parameters

raw[in]	- DAC raw data
offset[in,out]	- IIO offset value

Returns

0 in case of success, negative error code otherwise

ad579x_get_scale()

int ad579x_get_scale

(

float *

scale

)

Get the IIO scale factor.

Parameters

scale[in,out]

- IIO scale value

Returns

0 in case of success, negative error code otherwise

ad579x_iio_event_handler()

void ad579x_iio_event_handler

(

void

)

Run the AD579x IIO event handler.

Returns

none

This function monitors the new IIO client event

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ad579x_iio_init()

int32_t ad579x_iio_init

(

)

Initialize the IIO interface for AD579x IIO device.

Returns

0 in case of success, negative error code otherwise

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ad579x_set_sampling_rate()

int32_t ad579x_set_sampling_rate

(

uint32_t *

sampling_rate

)

Set the sampling rate and get the updated value supported by MCU platform.

Parameters

sampling_rate[in,out]

- Sampling rate value

Returns

0 in case of success, negative error code otherwise

Variable Documentation

ad579x_dev_desc

struct ad5791_dev* ad579x_dev_desc = NULL

ad579x_iio_scan_type

struct scan_type ad579x_iio_scan_type

Initial value:

= {
    .sign = 's',
    .realbits = DAC_RESOLUTION,
    .storagebits = CHN_STORAGE_BITS,
    .shift = 0,
    .is_big_endian = false
}