ad7606_iio.c File Reference

#include <inttypes.h>
#include <string.h>
#include <errno.h>
#include <math.h>
#include "app_config.h"
#include "ad7606_iio.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 ad7606_iio.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.
int32_t	debug_reg_write (void *dev, uint32_t reg, uint32_t writeval)
	Write into the debug register.
int32_t	iio_ad7606_trigger_handler (struct iio_device_data *iio_dev_data)
	Push data into IIO buffer when trigger handler IRQ is invoked.
int32_t	ad7606_iio_remove (struct iio_desc *desc)
	Release resources allocated for IIO device.
int32_t	ad7606_iio_initialize (void)
	Initialize the IIO interface for AD7606 IIO device.
void	ad7606_iio_event_handler (void)
	Run the AD7606 IIO event handler.

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

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

Here is the caller graph for this function:

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

Here is the caller graph for this function:

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

Here is the caller graph for this function:

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