Implementation of AD7689 IIO application interfaces. More...

#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include "ad7689_iio.h"
#include "app_config.h"
#include "ad7689_user_config.h"
#include "ad7689_support.h"
#include "common.h"
#include "no_os_error.h"
#include "no_os_delay.h"
#include "iio_trigger.h"

Include dependency graph for ad7689_iio.c:

Macros
#define	ADC_DEFAULT_SCALE ((ADC_DEFAULT_REF_VOLTAGE / ADC_MAX_COUNT_UNIPOLAR) * 1000)

#define	TEMPERATURE_SENSITIVITY 0.283

#define	ROOM_TEMPERATURE 25.0

#define	TEMPERATURE_CONV_SCALE

#define	NUM_OF_IIO_DEVICES 1

#define	AD7689_IIO_TRIGGER_NAME "ad7689_iio_trigger"

#define	BYTES_PER_SAMPLE sizeof(uint16_t)

#define	CHN_STORAGE_BITS (BYTES_PER_SAMPLE * 8)

#define	IIO_RAW_ATTR_ID 0

#define	IIO_SCALE_ATTR_ID 1

#define	IIO_OFFSET_ATTR_ID 2

#define	END_OF_CHN 0xff

#define	DATA_BUFFER_SIZE (32768)

Functions
int32_t	iio_ad7689_trigger_handler (struct iio_device_data *iio_dev_data)
	Push data into IIO buffer when trigger handler IRQ is invoked. More...

int32_t	ad7689_iio_initialize (void)
	Initialize the IIO interface for AD7689 IIO device. More...

void	ad7689_iio_event_handler (void)
	Run the AD7689 IIO event handler. More...

Variables
struct ad7689_dev *	p_ad7689_dev_inst = NULL

struct ad7689_config	ad7689_current_config

struct iio_attribute	channel_input_attributes []

struct scan_type	chn_scan

Detailed Description

Implementation of AD7689 IIO application interfaces.

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

◆ AD7689_IIO_TRIGGER_NAME

#define AD7689_IIO_TRIGGER_NAME "ad7689_iio_trigger"

◆ ADC_DEFAULT_SCALE

#define ADC_DEFAULT_SCALE ((ADC_DEFAULT_REF_VOLTAGE / ADC_MAX_COUNT_UNIPOLAR) * 1000)

◆ BYTES_PER_SAMPLE

#define BYTES_PER_SAMPLE sizeof(uint16_t)

◆ CHN_STORAGE_BITS

#define CHN_STORAGE_BITS (BYTES_PER_SAMPLE * 8)

◆ DATA_BUFFER_SIZE

#define DATA_BUFFER_SIZE (32768)

◆ END_OF_CHN

#define END_OF_CHN 0xff

◆ IIO_OFFSET_ATTR_ID

#define IIO_OFFSET_ATTR_ID 2

◆ IIO_RAW_ATTR_ID

#define IIO_RAW_ATTR_ID 0

◆ IIO_SCALE_ATTR_ID

#define IIO_SCALE_ATTR_ID 1

◆ NUM_OF_IIO_DEVICES

#define NUM_OF_IIO_DEVICES 1

◆ ROOM_TEMPERATURE

#define ROOM_TEMPERATURE 25.0

◆ TEMPERATURE_CONV_SCALE

#define TEMPERATURE_CONV_SCALE

Value:

(ROOM_TEMPERATURE / TEMPERATURE_SENSITIVITY) * \

((ADC_DEFAULT_REF_VOLTAGE / ADC_MAX_COUNT_UNIPOLAR) * 1000)

ADC_MAX_COUNT_UNIPOLAR

#define ADC_MAX_COUNT_UNIPOLAR

Definition: app_config.h:184

ADC_DEFAULT_REF_VOLTAGE

#define ADC_DEFAULT_REF_VOLTAGE

Definition: ad7134_iio.c:36

ROOM_TEMPERATURE

#define ROOM_TEMPERATURE

Definition: ad7689_iio.c:45

TEMPERATURE_SENSITIVITY

#define TEMPERATURE_SENSITIVITY

Definition: ad7689_iio.c:44

◆ TEMPERATURE_SENSITIVITY

#define TEMPERATURE_SENSITIVITY 0.283

Function Documentation

◆ ad7689_iio_event_handler()

void ad7689_iio_event_handler ( void )

Run the AD7689 IIO event handler.

Returns: none

This function monitors the new IIO client event

Here is the caller graph for this function:

◆ ad7689_iio_initialize()

int32_t ad7689_iio_initialize ( void )

Initialize the IIO interface for AD7689 IIO device.

Returns: 0 in case of success, negative error code otherwise

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◆ iio_ad7689_trigger_handler()

int32_t iio_ad7689_trigger_handler ( struct iio_device_data * iio_dev_data )

Push data into IIO buffer when trigger handler IRQ is invoked.

Parameters

iio_dev_data[in] - IIO device data instance

Returns: 0 in case of success or negative value otherwise

Variable Documentation

◆ ad7689_current_config

struct ad7689_config ad7689_current_config

◆ channel_input_attributes

struct iio_attribute channel_input_attributes[]

Initial value:

= {
    {
        .name = "raw",
        .show = get_adc_raw,
        .store = set_adc_raw,
        .priv = IIO_RAW_ATTR_ID
    },
    {
        .name = "scale",
        .show = get_adc_raw,
        .store = set_adc_raw,
        .priv = IIO_SCALE_ATTR_ID
    },
    {
        .name = "offset",
        .show = get_adc_raw,
        .store = set_adc_raw,
        .priv = IIO_OFFSET_ATTR_ID
    },
 
    END_ATTRIBUTES_ARRAY
}

◆ chn_scan

struct scan_type chn_scan