ad717x_iio.c File Reference

Source file for the AD717x IIO Application. More...

#include <stdio.h>
#include <string.h>
#include "ad717x_user_config.h"
#include "app_config.h"
#include "ad717x_iio.h"
#include "ad717x.h"
#include "iio.h"
#include "no_os_util.h"
#include "no_os_error.h"
#include "common.h"
#include "iio_trigger.h"
#include "ad717x_support.h"

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Macros
#define	AD717x_RESOLUTION   24
#define	ADC_MAX_COUNT_UNIPOLAR   (uint32_t)((1 << AD717x_RESOLUTION) - 1)
#define	ADC_MAX_COUNT_BIPOLAR   (uint32_t)(1 << (AD717x_RESOLUTION-1))
#define	BYTES_PER_SAMPLE   sizeof(uint32_t)
#define	CHN_STORAGE_BITS   (BYTES_PER_SAMPLE * 8)
#define	AD717x_RAW_ATTR_ID   0
#define	AD717x_SCALE_ATTR_ID   1
#define	AD717x_OFFSET_ATTR_ID   2
#define	AD717x_SAMPLING_FREQUENCY_ID   3
#define	AD717x_DATA_BUFFER_SIZE   (8192)
#define	AD717x_SCAN
#define	AD717x_CHANNEL(_name, _priv)
#define	IIO_AD717x_CHANNEL(_idx)
#define	DATA_BUFFER_SIZE   (32768)
#define	AD717X_IIO_TRIGGER_NAME   "ad717x_iio_trigger"
#define	NUM_OF_IIO_DEVICES   1
#define	AD717x_CONV_TIMEOUT   10000

Functions
int32_t	ad717x_trigger_cont_data_capture (void)
	Function to prepare the ADC for continuous capture. More...
int32_t	ad717x_stop_cont_data_capture (void)
	Function to stop continuous data capture. More...
int32_t	ad717x_trigger_handler (struct iio_device_data *iio_dev_data)
int32_t	iio_ad717x_init (struct iio_device **desc)
	Init for reading/writing and parameterization of a AD717x IIO device. More...
int32_t	ad717x_iio_initialize (void)
	Initialize the AD717x IIO Interface. More...
void	ad717x_iio_event_handler (void)
	Run the AD717x IIO event handler. More...

Variables
int8_t	adc_data_buffer [DATA_BUFFER_SIZE]
ad717x_dev *	p_ad717x_dev_inst = NULL

Detailed Description

Source file for the AD717x IIO Application.

Copyright (c) 2021-23 Analog Devices, Inc. All rights reserved.

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

AD717x_CHANNEL

#define AD717x_CHANNEL	(		_name,
			_priv
	)

Value:

    {\
    .name = _name,\
    .priv = _priv,\
    .show = get_adc_attribute,\
    .store = set_adc_attribute\
}

AD717x_CONV_TIMEOUT

#define AD717x_CONV_TIMEOUT   10000

AD717x_DATA_BUFFER_SIZE

#define AD717x_DATA_BUFFER_SIZE   (8192)

AD717X_IIO_TRIGGER_NAME

#define AD717X_IIO_TRIGGER_NAME   "ad717x_iio_trigger"

AD717x_OFFSET_ATTR_ID

#define AD717x_OFFSET_ATTR_ID   2

AD717x_RAW_ATTR_ID

#define AD717x_RAW_ATTR_ID   0

AD717x_RESOLUTION

#define AD717x_RESOLUTION   24

AD717x_SAMPLING_FREQUENCY_ID

#define AD717x_SAMPLING_FREQUENCY_ID   3

AD717x_SCALE_ATTR_ID

#define AD717x_SCALE_ATTR_ID   1

AD717x_SCAN

#define AD717x_SCAN

Value:

    {\
    .sign = 'u',\
    .realbits = AD717x_RESOLUTION,\
    .storagebits = CHN_STORAGE_BITS,\
    .shift = 0,\
    .is_big_endian = false\
}

ADC_MAX_COUNT_BIPOLAR

#define ADC_MAX_COUNT_BIPOLAR   (uint32_t)(1 << (AD717x_RESOLUTION-1))

ADC_MAX_COUNT_UNIPOLAR

#define ADC_MAX_COUNT_UNIPOLAR   (uint32_t)((1 << AD717x_RESOLUTION) - 1)

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)

IIO_AD717x_CHANNEL

#define IIO_AD717x_CHANNEL

(

_idx

)

Value:

    {\
    .name = "ch" # _idx,\
    .ch_type = IIO_VOLTAGE,\
    .channel = _idx,\
    .scan_index = _idx,\
    .indexed = true,\
    .scan_type = &ad717x_scan_type[_idx],\
    .ch_out = false,\
    .attributes = ad717x_channel_attributes,\
}

NUM_OF_IIO_DEVICES

#define NUM_OF_IIO_DEVICES   1

Function Documentation

ad717x_iio_event_handler()

void ad717x_iio_event_handler

(

void

)

Run the AD717x IIO event handler.

Returns

None

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ad717x_iio_initialize()

int32_t ad717x_iio_initialize

(

void

)

Initialize the AD717x IIO Interface.

Returns

0 in case of success, negative error code otherwise

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ad717x_stop_cont_data_capture()

int32_t ad717x_stop_cont_data_capture

(

void

)

Function to stop continuous data capture.

Returns

0 in case of success, negative error code otherwise

ad717x_trigger_cont_data_capture()

int32_t ad717x_trigger_cont_data_capture

(

void

)

Function to prepare the ADC for continuous capture.

Returns

0 in case of success, negative error code otherwise

ad717x_trigger_handler()

int32_t ad717x_trigger_handler

(

struct iio_device_data *

iio_dev_data

)

iio_ad717x_init()

int32_t iio_ad717x_init

(

struct iio_device **

desc

)

Init for reading/writing and parameterization of a AD717x IIO device.

Parameters

desc[in,out]

IIO device descriptor

Returns

0 in case of success, negative error code otherwise

Variable Documentation

adc_data_buffer

int8_t adc_data_buffer[DATA_BUFFER_SIZE]

p_ad717x_dev_inst

ad717x_dev* p_ad717x_dev_inst = NULL