ad2s1210_iio.c File Reference

Implementation of AD2S1210 IIO application interfaces. More...

#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <limits.h>
#include "iio.h"
#include "iio_trigger.h"
#include "ad2s1210_iio.h"
#include "app_config.h"
#include "ad2s1210_user_config.h"
#include "common.h"
#include "no_os_error.h"
#include "no_os_util.h"

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Macros
#define	AD2S1210_CHN_ATTR(_name, _priv)
#define	AD2S1210_CH(_name, _idx, _type, _ch_out)
#define	NUM_OF_IIO_DEVICES   1
#define	BYTES_PER_SAMPLE   2
#define	CHN_STORAGE_BITS   (BYTES_PER_SAMPLE * 8)
#define	AD2S1210_IIO_TRIGGER_NAME   "ad2s1210_iio_trigger"
#define	DATA_BUFFER_SIZE   (32768) /* 32kbytes */

Enumerations
enum	ad2s1210_attribute_id {   RAW_ATTR_ID ,   SCALE_ATTR_ID ,   SAMPLING_FREQ_ATTR_ID ,   LABEL_ATTR_ID ,   HYSTERESIS_ATTR_ID ,   HYSTERESIS_AVAILABLE_ATTR_ID ,   FREQ_ATTR_ID ,   FREQ_AVAIL_ATTR_ID }

Functions
int32_t	ad2s1210_trigger_handler (struct iio_device_data *iio_dev_data)
	Push data into IIO buffer when trigger handler IRQ is invoked. More...
int32_t	ad2s1210_iio_initialize (void)
	Initialize the IIO interface for AD2S1210 IIO device. More...
void	ad2s1210_iio_event_handler (void)
	Run the AD2S1210 IIO event handler. More...

Variables
struct ad2s1210_dev *	ad2s1210_dev_inst
uint32_t	active_chn_count
struct scan_type	chn_scan [RESOLVER_CHANNELS]

Detailed Description

Implementation of AD2S1210 IIO application interfaces.

Copyright (c) 2023 Analog Devices, Inc. Copyright (c) 2023 BayLibre, SAS. 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

AD2S1210_CH

#define AD2S1210_CH	(		_name,
			_idx,
			_type,
			_ch_out
	)

Value:

    {\
    .name = _name, \
    .ch_type = _type,\
    .ch_out = _ch_out,\
    .indexed = true,\
    .channel = 0,\
    .scan_index = _idx,\
    .scan_type = &chn_scan[_idx],\
    .attributes = &ad2s1210_iio_ch_attributes[_idx][0]\
}

AD2S1210_CHN_ATTR

#define AD2S1210_CHN_ATTR	(		_name,
			_priv
	)

Value:

    {\
    .name = _name,\
    .priv = _priv,\
    .show = iio_ad2s1210_attr_get,\
    .store = iio_ad2s1210_attr_set\
}

AD2S1210_IIO_TRIGGER_NAME

#define AD2S1210_IIO_TRIGGER_NAME   "ad2s1210_iio_trigger"

BYTES_PER_SAMPLE

#define BYTES_PER_SAMPLE   2

CHN_STORAGE_BITS

#define CHN_STORAGE_BITS   (BYTES_PER_SAMPLE * 8)

DATA_BUFFER_SIZE

#define DATA_BUFFER_SIZE   (32768) /* 32kbytes */

NUM_OF_IIO_DEVICES

#define NUM_OF_IIO_DEVICES   1

Enumeration Type Documentation

ad2s1210_attribute_id

enum ad2s1210_attribute_id

Enumerator
RAW_ATTR_ID
SCALE_ATTR_ID
SAMPLING_FREQ_ATTR_ID
LABEL_ATTR_ID
HYSTERESIS_ATTR_ID
HYSTERESIS_AVAILABLE_ATTR_ID
FREQ_ATTR_ID
FREQ_AVAIL_ATTR_ID

Function Documentation

ad2s1210_iio_event_handler()

void ad2s1210_iio_event_handler

(

void

)

Run the AD2S1210 IIO event handler.

Returns

none

This function monitors the new IIO client event

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ad2s1210_iio_initialize()

int32_t ad2s1210_iio_initialize

(

void

)

Initialize the IIO interface for AD2S1210 IIO device.

Returns

0 in case of success, negative error code otherwise

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ad2s1210_trigger_handler()

int32_t ad2s1210_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

active_chn_count

uint32_t active_chn_count

ad2s1210_dev_inst

struct ad2s1210_dev* ad2s1210_dev_inst

chn_scan

struct scan_type chn_scan[RESOLVER_CHANNELS]

Initial value:

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