iio_ad7606.c File Reference

Implementation of AD7606 IIO application interfaces. More...

#include <inttypes.h>
#include <string.h>
#include <errno.h>
#include <math.h>
#include "app_config.h"
#include "iio_ad7606.h"
#include "ad7606.h"
#include "ad7606_support.h"
#include "ad7606_user_config.h"
#include "common.h"
#include "no_os_error.h"
#include "no_os_gpio.h"
#include "iio_trigger.h"

Include dependency graph for iio_ad7606.c:

Macros
#define	DEFAULT_SCALE   ((DEFAULT_CHN_RANGE / ADC_MAX_COUNT_BIPOLAR) * 1000)
#define	MANUAL_OPEN_DETECT_ENTRY_TRHLD   350
#define	MANUAL_OPEN_DETECT_THRESHOLD_RPD50K   20
#define	MANUAL_OPEN_DETECT_CONV_CNTS   10
#define	MANUAL_OPEN_DETECT_CONV_TRSHLD   10
#define	MANUAL_OPEN_DETECT_CM_CNV_CNT   3
#define	AUTO_OPEN_DETECT_QUEUE_MAX_CNT   128
#define	AUTO_OPEN_DETECT_QUEUE_EXTRA_CONV_CNT   15
#define	ADC_CALIBRATION_GAIN_MAX   64.0
#define	OFFSET_REG_RESOLUTION   1
#define	NUM_OF_IIO_DEVICES   1
#define	IIO_TRIGGER_NAME   "ad7606_iio_trigger"
#define	CHN_STORAGE_BITS   (BYTES_PER_SAMPLE * 8)
#define	DATA_BUFFER_SIZE   (32768)

Enumerations
enum	ad7606_attribute_id {   RAW_ATTR_ID ,   SCALE_ATTR_ID ,   OFFSET_ATTR_ID ,   SAMPLING_FREQ_ATTR_ID }
enum	range_e {   LOW ,   HIGH }

Functions
int32_t	debug_reg_read (void *dev, uint32_t reg, uint32_t *readval)
	Read the debug register value. More...
int32_t	debug_reg_write (void *dev, uint32_t reg, uint32_t writeval)
	Write into the debug register. More...
int32_t	iio_ad7606_trigger_handler (struct iio_device_data *iio_dev_data)
	Push data into IIO buffer when trigger handler IRQ is invoked. More...
int32_t	ad7606_iio_remove (struct iio_desc *desc)
	Release resources allocated for IIO device. More...
int32_t	ad7606_iio_initialize (void)
	Initialize the IIO interface for AD7606 IIO device. More...
void	ad7606_iio_event_handler (void)
	Run the AD7606 IIO event handler. More...

Variables
struct ad7606_dev *	p_ad7606_dev_inst = NULL
struct iio_attribute	channel_input_attributes []

Detailed Description

Implementation of AD7606 IIO application interfaces.

This module acts as an interface for AD7606 IIO application

Copyright (c) 2020-2023 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

ADC_CALIBRATION_GAIN_MAX

#define ADC_CALIBRATION_GAIN_MAX   64.0

AUTO_OPEN_DETECT_QUEUE_EXTRA_CONV_CNT

#define AUTO_OPEN_DETECT_QUEUE_EXTRA_CONV_CNT   15

AUTO_OPEN_DETECT_QUEUE_MAX_CNT

#define AUTO_OPEN_DETECT_QUEUE_MAX_CNT   128

CHN_STORAGE_BITS

#define CHN_STORAGE_BITS   (BYTES_PER_SAMPLE * 8)

DATA_BUFFER_SIZE

#define DATA_BUFFER_SIZE   (32768)

DEFAULT_SCALE

#define DEFAULT_SCALE   ((DEFAULT_CHN_RANGE / ADC_MAX_COUNT_BIPOLAR) * 1000)

IIO_TRIGGER_NAME

#define IIO_TRIGGER_NAME   "ad7606_iio_trigger"

MANUAL_OPEN_DETECT_CM_CNV_CNT

#define MANUAL_OPEN_DETECT_CM_CNV_CNT   3

MANUAL_OPEN_DETECT_CONV_CNTS

#define MANUAL_OPEN_DETECT_CONV_CNTS   10

MANUAL_OPEN_DETECT_CONV_TRSHLD

#define MANUAL_OPEN_DETECT_CONV_TRSHLD   10

MANUAL_OPEN_DETECT_ENTRY_TRHLD

#define MANUAL_OPEN_DETECT_ENTRY_TRHLD   350

MANUAL_OPEN_DETECT_THRESHOLD_RPD50K

#define MANUAL_OPEN_DETECT_THRESHOLD_RPD50K   20

NUM_OF_IIO_DEVICES

#define NUM_OF_IIO_DEVICES   1

OFFSET_REG_RESOLUTION

#define OFFSET_REG_RESOLUTION   1

Enumeration Type Documentation

ad7606_attribute_id

enum ad7606_attribute_id

Enumerator
RAW_ATTR_ID
SCALE_ATTR_ID
OFFSET_ATTR_ID
SAMPLING_FREQ_ATTR_ID

range_e

enum range_e

Enumerator
LOW
HIGH

Function Documentation

ad7606_iio_event_handler()

void ad7606_iio_event_handler

(

void

)

Run the AD7606 IIO event handler.

Returns

none

This function monitors the new IIO client event

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ad7606_iio_initialize()

int32_t ad7606_iio_initialize

(

void

)

Initialize the IIO interface for AD7606 IIO device.

Returns

none

0 in case of success, negative error code otherwise

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ad7606_iio_remove()

int32_t ad7606_iio_remove

(

struct iio_desc *

desc

)

Release resources allocated for IIO device.

Parameters

desc[in]

- IIO device descriptor

Returns

0 in case of success, negative error code otherwise

debug_reg_read()

int32_t debug_reg_read	(	void *	dev,
		uint32_t	reg,
		uint32_t *	readval
	)

Read the debug register value.

Parameters

dev[in]-	Pointer to IIO device instance
reg[in]-	Register address to read from
readval[out]-	Pointer to variable to read data into

Returns

0 in case of success, negative error code otherwise

debug_reg_write()

int32_t debug_reg_write	(	void *	dev,
		uint32_t	reg,
		uint32_t	writeval
	)

Write into the debug register.

Parameters

dev[in]-	Pointer to IIO device instance
reg[in]-	Register address to write into
writeval[in]-	Register value to write

Returns

0 in case of success, negative error code otherwise

iio_ad7606_trigger_handler()

int32_t iio_ad7606_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

channel_input_attributes

struct iio_attribute channel_input_attributes[]

p_ad7606_dev_inst

struct ad7606_dev* p_ad7606_dev_inst = NULL

Pointer to the struct representing the AD7606 IIO device