Source file of AD777x IIO interfaces. More...
#include <string.h>#include "ad777x_user_config.h"#include "ad777x_support.h"#include "no_os_error.h"#include "iio_trigger.h"#include "no_os_util.h"#include "no_os_gpio.h"#include "no_os_irq.h"#include "ad777x_iio.h"#include "app_config.h"#include "common.h"#include "ad7779.h"#include "iio.h"
Include dependency graph for ad777x_iio.c:
Macros | |
| #define | AD777x_CH_ATTR(_name, _idx) |
| #define | AD777x_CH_AVAIL_ATTR(_name, _priv) |
| #define | AD777x_CHANNEL(_name, _idx) |
| #define | CHN_STORAGE_BITS (BYTES_PER_SAMPLE * 8) |
| #define | AD777x_INTERNAL_REF_VAL 2.5 |
| #define | AD777x_EXTERNAL_REF_VAL 2.5 |
| #define | AD777X_SAR_RESOLUTION 12 |
| #define | AD777X_SAR_REFERENCE 3.3 |
| #define | AD777X_SAR_SCALE AD777X_SAR_REFERENCE/(1 << (AD777X_SAR_RESOLUTION-1)) |
| #define | SRC_LOAD_UPDATE_HIGH 0x1 |
| #define | SRC_LOAD_UPDATE_LOW 0x0 |
| #define | AD777X_SRC_ATT_FACTOR 6 |
| #define | DATA_BUFFER_SIZE (128000) |
| #define | AD777X_IIO_TRIGGER_NAME "ad777x_iio_trigger" |
| #define | NUM_OF_IIO_DEVICES 1 |
Functions | |
| int32_t | ad777x_trigger_handler (struct iio_device_data *iio_dev_data) |
| Push data into IIO buffer when trigger handler IRQ is invoked. More... | |
| void | data_capture_callback (void *ctx) |
| Interrupt Service Routine to monitor end of conversion event. More... | |
| int32_t | iio_ad777x_init (struct iio_device **desc) |
| Init for reading/writing and parameterization of a AD777x IIO device. More... | |
| int32_t | ad777x_iio_initialize (void) |
| Initialize the IIO interface for AD777x IIO device. More... | |
| void | ad777x_iio_event_handler (void) |
| Run the AD777x IIO event handler. More... | |
Variables | |
| ad7779_dev * | p_ad777x_dev_inst = NULL |
| struct scan_type | ad777x_scan_type |
| struct iio_device_data * | ad777x_iio_dev_data |
| bool | data_capture_operation = false |
Detailed Description
Source file of AD777x IIO interfaces.
Copyright (c) 2022-2024 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
◆ AD777x_CH_ATTR
| #define AD777x_CH_ATTR | ( | _name, | |
| _idx | |||
| ) |
Value:
{\
.name = _name,\
.priv = _idx,\
.show = ad777x_get_attribute,\
.store = ad777x_set_attribute\
}
◆ AD777x_CH_AVAIL_ATTR
| #define AD777x_CH_AVAIL_ATTR | ( | _name, | |
| _priv | |||
| ) |
Value:
{\
.name = _name,\
.priv = _priv,\
.show = ad777x_get_avail_attribute,\
.store = ad777x_set_avail_attribute \
}
◆ AD777x_CHANNEL
| #define AD777x_CHANNEL | ( | _name, | |
| _idx | |||
| ) |
Value:
{\
.name = _name # _idx, \
.ch_type = IIO_VOLTAGE,\
.ch_out = false,\
.indexed = true,\
.channel = _idx,\
.scan_index = _idx,\
.scan_type = &ad777x_scan_type,\
.attributes = ad777x_channel_attributes\
}
◆ AD777x_EXTERNAL_REF_VAL
| #define AD777x_EXTERNAL_REF_VAL 2.5 |
◆ AD777X_IIO_TRIGGER_NAME
| #define AD777X_IIO_TRIGGER_NAME "ad777x_iio_trigger" |
◆ AD777x_INTERNAL_REF_VAL
| #define AD777x_INTERNAL_REF_VAL 2.5 |
◆ AD777X_SAR_REFERENCE
| #define AD777X_SAR_REFERENCE 3.3 |
◆ AD777X_SAR_RESOLUTION
| #define AD777X_SAR_RESOLUTION 12 |
◆ AD777X_SAR_SCALE
| #define AD777X_SAR_SCALE AD777X_SAR_REFERENCE/(1 << (AD777X_SAR_RESOLUTION-1)) |
◆ AD777X_SRC_ATT_FACTOR
| #define AD777X_SRC_ATT_FACTOR 6 |
◆ CHN_STORAGE_BITS
| #define CHN_STORAGE_BITS (BYTES_PER_SAMPLE * 8) |
◆ DATA_BUFFER_SIZE
| #define DATA_BUFFER_SIZE (128000) |
◆ NUM_OF_IIO_DEVICES
| #define NUM_OF_IIO_DEVICES 1 |
◆ SRC_LOAD_UPDATE_HIGH
| #define SRC_LOAD_UPDATE_HIGH 0x1 |
◆ SRC_LOAD_UPDATE_LOW
| #define SRC_LOAD_UPDATE_LOW 0x0 |
Enumeration Type Documentation
◆ ad777x_attribute_id
| enum ad777x_attribute_id |
Function Documentation
◆ ad777x_iio_event_handler()
| void ad777x_iio_event_handler | ( | void | ) |
Run the AD777x IIO event handler.
- Returns
- None
Here is the caller graph for this function:
◆ ad777x_iio_initialize()
| int32_t ad777x_iio_initialize | ( | void | ) |
Initialize the IIO interface for AD777x IIO device.
- Returns
- none
- 0 in case of success, negative error code otherwise
Here is the caller graph for this function:
◆ ad777x_trigger_handler()
| int32_t ad777x_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
- Note
- This function is utilized only in case of continuous capture in SPI Mode. In TDM Mode, it is utilized only to copy the private data member iio_dev_data
◆ data_capture_callback()
| void data_capture_callback | ( | void * | ctx | ) |
Interrupt Service Routine to monitor end of conversion event.
Interrupt Service Routine to monitor data ready event.
- Parameters
-
ctx[in] - Callback context (unused)
- Returns
- none
- Note
- Callback registered for the the DRDY interrupt to indicate end of conversion in case of burst data capturing with SPI operation.
◆ iio_ad777x_init()
| int32_t iio_ad777x_init | ( | struct iio_device ** | desc | ) |
Init for reading/writing and parameterization of a AD777x IIO device.
- Parameters
-
desc[in,out] - IIO device descriptor
- Returns
- 0 in case of success or negative value otherwise
Variable Documentation
◆ ad777x_iio_dev_data
| struct iio_device_data* ad777x_iio_dev_data |
◆ ad777x_scan_type
| struct scan_type ad777x_scan_type |
Initial value:
= {
.storagebits = CHN_STORAGE_BITS,
.realbits = ADC_RESOLUTION,
.shift = 0,
.is_big_endian = false,
.sign = 's'
}
◆ data_capture_operation
| bool data_capture_operation = false |
◆ p_ad777x_dev_inst
| ad7779_dev* p_ad777x_dev_inst = NULL |
