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zephyr/drivers/sensor/adxl372/adxl372.c

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/*
* Copyright (c) 2018 Analog Devices Inc.
*
* SPDX-License-Identifier: Apache-2.0
*/
#define DT_DRV_COMPAT adi_adxl372
#include <kernel.h>
#include <string.h>
#include <drivers/sensor.h>
#include <init.h>
#include <drivers/gpio.h>
#include <sys/printk.h>
#include <sys/__assert.h>
#include <stdlib.h>
#include <drivers/spi.h>
#include <drivers/i2c.h>
#include <logging/log.h>
#include "adxl372.h"
LOG_MODULE_REGISTER(ADXL372, CONFIG_SENSOR_LOG_LEVEL);
static int adxl372_bus_access(const struct device *dev, uint8_t reg,
void *data, size_t length)
{
struct adxl372_data *adxl372_data = dev->data;
#ifdef CONFIG_ADXL372_SPI
const struct spi_buf buf[2] = {
{
.buf = &reg,
.len = 1
}, {
.buf = data,
.len = length
}
};
struct spi_buf_set tx = {
.buffers = buf,
};
if (reg & ADXL372_READ) {
const struct spi_buf_set rx = {
.buffers = buf,
.count = 2
};
tx.count = 1;
return spi_transceive(adxl372_data->bus,
&adxl372_data->spi_cfg, &tx, &rx);
}
tx.count = 2;
return spi_write(adxl372_data->bus, &adxl372_data->spi_cfg, &tx);
#elif CONFIG_ADXL372_I2C
const struct adxl372_dev_config *cfg = dev->config;
if (reg & ADXL372_READ) {
return i2c_burst_read(adxl372_data->bus, cfg->i2c_addr,
ADXL372_TO_I2C_REG(reg),
(uint8_t *) data, length);
} else {
if (length != 1) {
return -EINVAL;
}
return i2c_reg_write_byte(adxl372_data->bus, cfg->i2c_addr,
ADXL372_TO_I2C_REG(reg),
*(uint8_t *)data);
}
#endif
}
/**
* Read from device.
* @param dev - The device structure.
* @param reg_addr - The register address.
* @param reg_data - The register data.
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_reg_read(const struct device *dev,
uint8_t reg_addr,
uint8_t *reg_data)
{
return adxl372_bus_access(dev, ADXL372_REG_READ(reg_addr), reg_data, 1);
}
/**
* Multibyte read from device. A register read begins with the address
* and autoincrements for each additional byte in the transfer.
* @param dev - The device structure.
* @param reg_addr - The register address.
* @param reg_data - The register data.
* @param count - Number of bytes to read.
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_reg_read_multiple(const struct device *dev,
uint8_t reg_addr,
uint8_t *reg_data,
uint16_t count)
{
return adxl372_bus_access(dev, ADXL372_REG_READ(reg_addr),
reg_data, count);
}
/**
* Write to device.
* @param dev - The device structure.
* @param reg_addr - The register address.
* @param reg_data - The register data.
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_reg_write(const struct device *dev,
uint8_t reg_addr,
uint8_t reg_data)
{
LOG_DBG("[0x%X] = 0x%X", reg_addr, reg_data);
return adxl372_bus_access(dev, ADXL372_REG_WRITE(reg_addr),
&reg_data, 1);
}
/**
* SPI write to device using a mask.
* @param dev - The device structure.
* @param reg_addr - The register address.
* @param mask - The mask.
* @param data - The register data.
* @return 0 in case of success, negative error code otherwise.
*/
int adxl372_reg_write_mask(const struct device *dev,
uint8_t reg_addr,
uint32_t mask,
uint8_t data)
{
int ret;
uint8_t tmp;
ret = adxl372_reg_read(dev, reg_addr, &tmp);
if (ret) {
return ret;
}
tmp &= ~mask;
tmp |= data;
return adxl372_reg_write(dev, reg_addr, tmp);
}
/**
* Set the threshold for activity detection for a single axis
* @param dev - The device structure.
* @param axis_reg_h - The high part of the activity register.
* @param act - The activity config structure.
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_activity_threshold(const struct device *dev,
uint8_t axis_reg_h,
const struct adxl372_activity_threshold *act)
{
int ret;
uint8_t val;
ret = adxl372_reg_write(dev, axis_reg_h++, act->thresh >> 3);
if (ret) {
return ret;
}
switch (axis_reg_h) {
case ADXL372_X_THRESH_ACT_L:
case ADXL372_X_THRESH_INACT_L:
case ADXL372_X_THRESH_ACT2_L:
val = (act->thresh << 5) | (act->referenced << 1) | act->enable;
break;
default:
val = (act->thresh << 5) | act->enable;
}
return adxl372_reg_write(dev, axis_reg_h, val);
}
/**
* Set the threshold for activity detection for all 3-axis
* @param dev - The device structure.
* @param axis_reg_h - The high part of the activity register.
* @param act - The activity config structure.
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_activity_threshold_xyz(const struct device *dev,
uint8_t axis_reg_h,
const struct adxl372_activity_threshold *act)
{
int i, ret;
for (i = 0; i < 3; i++) {
ret = adxl372_set_activity_threshold(dev, axis_reg_h, act);
if (ret) {
return ret;
}
axis_reg_h += 2U;
}
return 0;
}
/**
* Set the mode of operation.
* @param dev - The device structure.
* @param op_mode - Mode of operation.
* Accepted values: ADXL372_STANDBY
* ADXL372_WAKE_UP
* ADXL372_INSTANT_ON
* ADXL372_FULL_BW_MEASUREMENT
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_op_mode(const struct device *dev,
enum adxl372_op_mode op_mode)
{
return adxl372_reg_write_mask(dev, ADXL372_POWER_CTL,
ADXL372_POWER_CTL_MODE_MSK,
ADXL372_POWER_CTL_MODE(op_mode));
}
/**
* Autosleep. When set to 1, autosleep is enabled, and the device enters
* wake-up mode automatically upon detection of inactivity.
* @param dev - The device structure.
* @param enable - Accepted values: true
* false
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_autosleep(const struct device *dev, bool enable)
{
return adxl372_reg_write_mask(dev, ADXL372_MEASURE,
ADXL372_MEASURE_AUTOSLEEP_MSK,
ADXL372_MEASURE_AUTOSLEEP_MODE(enable));
}
/**
* Select the desired output signal bandwidth.
* @param dev - The device structure.
* @param bw - bandwidth.
* Accepted values: ADXL372_BW_200HZ
* ADXL372_BW_400HZ
* ADXL372_BW_800HZ
* ADXL372_BW_1600HZ
* ADXL372_BW_3200HZ
* ADXL372_BW_LPF_DISABLED
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_bandwidth(const struct device *dev,
enum adxl372_bandwidth bw)
{
int ret;
uint8_t mask;
if (bw == ADXL372_BW_LPF_DISABLED) {
mask = ADXL372_POWER_CTL_LPF_DIS_MSK;
} else {
mask = 0U;
}
ret = adxl372_reg_write_mask(dev, ADXL372_POWER_CTL,
ADXL372_POWER_CTL_LPF_DIS_MSK, mask);
if (ret) {
return ret;
}
return adxl372_reg_write_mask(dev, ADXL372_MEASURE,
ADXL372_MEASURE_BANDWIDTH_MSK,
ADXL372_MEASURE_BANDWIDTH_MODE(bw));
}
/**
* Select the desired high-pass filter coner.
* @param dev - The device structure.
* @param bw - bandwidth.
* Accepted values: ADXL372_HPF_CORNER_0
* ADXL372_HPF_CORNER_1
* ADXL372_HPF_CORNER_2
* ADXL372_HPF_CORNER_3
* ADXL372_HPF_DISABLED
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_hpf_corner(const struct device *dev,
enum adxl372_hpf_corner c)
{
int ret;
uint8_t mask;
if (c == ADXL372_HPF_DISABLED) {
mask = ADXL372_POWER_CTL_HPF_DIS_MSK;
} else {
mask = 0U;
}
ret = adxl372_reg_write_mask(dev, ADXL372_POWER_CTL,
ADXL372_POWER_CTL_HPF_DIS_MSK, mask);
if (ret) {
return ret;
}
return adxl372_reg_write(dev, ADXL372_HPF, ADXL372_HPF_CORNER(c));
}
/**
* Link/Loop Activity Processing.
* @param dev - The device structure.
* @param mode - Mode of operation.
* Accepted values: ADXL372_DEFAULT
* ADXL372_LINKED
* ADXL372_LOOPED
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_act_proc_mode(const struct device *dev,
enum adxl372_act_proc_mode mode)
{
return adxl372_reg_write_mask(dev, ADXL372_MEASURE,
ADXL372_MEASURE_LINKLOOP_MSK,
ADXL372_MEASURE_LINKLOOP_MODE(mode));
}
/**
* Set Output data rate.
* @param dev - The device structure.
* @param odr - Output data rate.
* Accepted values: ADXL372_ODR_400HZ
* ADXL372_ODR_800HZ
* ADXL372_ODR_1600HZ
* ADXL372_ODR_3200HZ
* ADXL372_ODR_6400HZ
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_odr(const struct device *dev, enum adxl372_odr odr)
{
return adxl372_reg_write_mask(dev, ADXL372_TIMING,
ADXL372_TIMING_ODR_MSK,
ADXL372_TIMING_ODR_MODE(odr));
}
/**
* Select instant on threshold
* @param dev - The device structure.
* @param mode - 0 = low threshold, 1 = high threshold.
* Accepted values: ADXL372_INSTANT_ON_LOW_TH
* ADXL372_INSTANT_ON_HIGH_TH
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_instant_on_th(const struct device *dev,
enum adxl372_instant_on_th_mode mode)
{
return adxl372_reg_write_mask(dev, ADXL372_POWER_CTL,
ADXL372_POWER_CTL_INSTANT_ON_TH_MSK,
ADXL372_POWER_CTL_INSTANT_ON_TH_MODE(mode));
}
/**
* Set the Timer Rate for Wake-Up Mode.
* @param dev - The device structure.
* @param wur - wake up mode rate
* Accepted values: ADXL372_WUR_52ms
* ADXL372_WUR_104ms
* ADXL372_WUR_208ms
* ADXL372_WUR_512ms
* ADXL372_WUR_2048ms
* ADXL372_WUR_4096ms
* ADXL372_WUR_8192ms
* ADXL372_WUR_24576ms
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_wakeup_rate(const struct device *dev,
enum adxl372_wakeup_rate wur)
{
return adxl372_reg_write_mask(dev, ADXL372_TIMING,
ADXL372_TIMING_WAKE_UP_RATE_MSK,
ADXL372_TIMING_WAKE_UP_RATE_MODE(wur));
}
/**
* Set the activity timer
* @param dev - The device structure.
* @param time - The value set in this register.
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_activity_time(const struct device *dev, uint8_t time)
{
return adxl372_reg_write(dev, ADXL372_TIME_ACT, time);
}
/**
* Set the inactivity timer
* @param dev - The device structure.
* @param time - is the 16-bit value set by the TIME_INACT_L register
* (eight LSBs) and the TIME_INACT_H register (eight MSBs).
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_inactivity_time(const struct device *dev,
uint16_t time)
{
int ret;
ret = adxl372_reg_write(dev, ADXL372_TIME_INACT_H, time >> 8);
if (ret) {
return ret;
}
return adxl372_reg_write(dev, ADXL372_TIME_INACT_L, time & 0xFF);
}
/**
* Set the filter settling period.
* @param dev - The device structure.
* @param mode - settle period
* Accepted values: ADXL372_FILTER_SETTLE_370
* ADXL372_FILTER_SETTLE_16
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_set_filter_settle(const struct device *dev,
enum adxl372_filter_settle mode)
{
return adxl372_reg_write_mask(dev, ADXL372_POWER_CTL,
ADXL372_POWER_CTL_FIL_SETTLE_MSK,
ADXL372_POWER_CTL_FIL_SETTLE_MODE(mode));
}
/**
* Configure the INT1 and INT2 interrupt pins.
* @param dev - The device structure.
* @param int1 - INT1 interrupt pins.
* @param int2 - INT2 interrupt pins.
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_interrupt_config(const struct device *dev,
uint8_t int1,
uint8_t int2)
{
int ret;
ret = adxl372_reg_write(dev, ADXL372_INT1_MAP, int1);
if (ret) {
return ret;
}
return adxl372_reg_write(dev, ADXL372_INT2_MAP, int2);
}
/**
* Get the STATUS, STATUS2, FIFO_ENTRIES and FIFO_ENTRIES2 registers data
* @param dev - The device structure.
* @param status1 - Data stored in the STATUS1 register
* @param status2 - Data stored in the STATUS2 register
* @param fifo_entries - Number of valid data samples present in the
* FIFO buffer (0 to 512)
* @return 0 in case of success, negative error code otherwise.
*/
int adxl372_get_status(const struct device *dev,
uint8_t *status1,
uint8_t *status2,
uint16_t *fifo_entries)
{
uint8_t buf[4], length = 1U;
int ret;
if (status2) {
length++;
}
if (fifo_entries) {
length += 2U;
}
ret = adxl372_reg_read_multiple(dev, ADXL372_STATUS_1, buf, length);
*status1 = buf[0];
if (status2) {
*status2 = buf[1];
}
if (fifo_entries) {
*fifo_entries = ((buf[2] & 0x3) << 8) | buf[3];
}
return ret;
}
/**
* Software reset.
* @param dev - The device structure.
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_reset(const struct device *dev)
{
int ret;
ret = adxl372_set_op_mode(dev, ADXL372_STANDBY);
if (ret) {
return ret;
}
/* Writing code 0x52 resets the device */
ret = adxl372_reg_write(dev, ADXL372_RESET, ADXL372_RESET_CODE);
k_sleep(K_MSEC(1000));
return ret;
}
/**
* Configure the operating parameters for the FIFO.
* @param dev - The device structure.
* @param mode - FIFO Mode. Specifies FIFO operating mode.
* Accepted values: ADXL372_FIFO_BYPASSED
* ADXL372_FIFO_STREAMED
* ADXL372_FIFO_TRIGGERED
* ADXL372_FIFO_OLD_SAVED
* @param format - FIFO Format. Specifies the data is stored in the FIFO buffer.
* Accepted values: ADXL372_XYZ_FIFO
* ADXL372_X_FIFO
* ADXL372_Y_FIFO
* ADXL372_XY_FIFO
* ADXL372_Z_FIFO
* ADXL372_XZ_FIFO
* ADXL372_YZ_FIFO
* ADXL372_XYZ_PEAK_FIFO
* @param fifo_samples - FIFO Samples. Watermark number of FIFO samples that
* triggers a FIFO_FULL condition when reached.
* Values range from 0 to 512.
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_configure_fifo(const struct device *dev,
enum adxl372_fifo_mode mode,
enum adxl372_fifo_format format,
uint16_t fifo_samples)
{
struct adxl372_data *data = dev->data;
uint8_t fifo_config;
int ret;
if (fifo_samples > 512) {
return -EINVAL;
}
/*
* All FIFO modes must be configured while in standby mode.
*/
ret = adxl372_set_op_mode(dev, ADXL372_STANDBY);
if (ret) {
return ret;
}
fifo_config = (ADXL372_FIFO_CTL_FORMAT_MODE(format) |
ADXL372_FIFO_CTL_MODE_MODE(mode) |
ADXL372_FIFO_CTL_SAMPLES_MODE(fifo_samples));
ret = adxl372_reg_write(dev, ADXL372_FIFO_CTL, fifo_config);
if (ret) {
return ret;
}
ret = adxl372_reg_write(dev, ADXL372_FIFO_SAMPLES, fifo_samples & 0xFF);
if (ret) {
return ret;
}
data->fifo_config.fifo_format = format;
data->fifo_config.fifo_mode = mode;
data->fifo_config.fifo_samples = fifo_samples;
return 0;
}
/**
* Retrieve 3-axis acceleration data
* @param dev - The device structure.
* @param maxpeak - Retrieve the highest magnitude (x, y, z) sample recorded
* since the last read of the MAXPEAK registers
* @param accel_data - pointer to a variable of type adxl372_xyz_accel_data
* where (x, y, z) acceleration data will be stored.
* @return 0 in case of success, negative error code otherwise.
*/
static int adxl372_get_accel_data(const struct device *dev, bool maxpeak,
struct adxl372_xyz_accel_data *accel_data)
{
uint8_t buf[6];
uint8_t status1;
int ret;
if (!IS_ENABLED(CONFIG_ADXL372_TRIGGER)) {
do {
adxl372_get_status(dev, &status1, NULL, NULL);
} while (!(ADXL372_STATUS_1_DATA_RDY(status1)));
}
ret = adxl372_reg_read_multiple(dev, maxpeak ? ADXL372_X_MAXPEAK_H :
ADXL372_X_DATA_H, buf, 6);
accel_data->x = (buf[0] << 8) | (buf[1] & 0xF0);
accel_data->y = (buf[2] << 8) | (buf[3] & 0xF0);
accel_data->z = (buf[4] << 8) | (buf[5] & 0xF0);
return ret;
}
static int adxl372_attr_set_odr(const struct device *dev,
enum sensor_channel chan,
enum sensor_attribute attr,
const struct sensor_value *val)
{
enum adxl372_odr odr;
switch (val->val1) {
case 400:
odr = ADXL372_ODR_400HZ;
break;
case 800:
odr = ADXL372_ODR_800HZ;
break;
case 1600:
odr = ADXL372_ODR_1600HZ;
break;
case 3200:
odr = ADXL372_ODR_3200HZ;
break;
case 6400:
odr = ADXL372_ODR_6400HZ;
break;
default:
return -EINVAL;
}
return adxl372_set_odr(dev, odr);
}
static int adxl372_attr_set_thresh(const struct device *dev,
enum sensor_channel chan,
enum sensor_attribute attr,
const struct sensor_value *val)
{
const struct adxl372_dev_config *cfg = dev->config;
struct adxl372_activity_threshold threshold;
int32_t value;
int64_t micro_ms2 = val->val1 * 1000000LL + val->val2;
uint8_t reg;
value = abs((micro_ms2 * 10) / SENSOR_G);
if (value > 2047) {
return -EINVAL;
}
threshold.thresh = value;
threshold.enable = cfg->activity_th.enable;
threshold.referenced = cfg->activity_th.referenced;
if (attr == SENSOR_ATTR_UPPER_THRESH) {
reg = ADXL372_X_THRESH_ACT_H;
} else {
reg = ADXL372_X_THRESH_INACT_H;
}
switch (chan) {
case SENSOR_CHAN_ACCEL_X:
return adxl372_set_activity_threshold(dev, reg, &threshold);
case SENSOR_CHAN_ACCEL_Y:
return adxl372_set_activity_threshold(dev, reg + 2, &threshold);
case SENSOR_CHAN_ACCEL_Z:
return adxl372_set_activity_threshold(dev, reg + 4, &threshold);
case SENSOR_CHAN_ACCEL_XYZ:
return adxl372_set_activity_threshold_xyz(dev, reg, &threshold);
default:
LOG_ERR("attr_set() not supported on this channel");
return -ENOTSUP;
}
}
static int adxl372_attr_set(const struct device *dev,
enum sensor_channel chan,
enum sensor_attribute attr,
const struct sensor_value *val)
{
switch (attr) {
case SENSOR_ATTR_SAMPLING_FREQUENCY:
return adxl372_attr_set_odr(dev, chan, attr, val);
case SENSOR_ATTR_UPPER_THRESH:
case SENSOR_ATTR_LOWER_THRESH:
return adxl372_attr_set_thresh(dev, chan, attr, val);
default:
return -ENOTSUP;
}
}
static int adxl372_sample_fetch(const struct device *dev,
enum sensor_channel chan)
{
struct adxl372_data *data = dev->data;
const struct adxl372_dev_config *cfg = dev->config;
return adxl372_get_accel_data(dev, cfg->max_peak_detect_mode,
&data->sample);
}
static void adxl372_accel_convert(struct sensor_value *val, int16_t value)
{
/*
* Sensor resolution is 100mg/LSB, 12-bit value needs to be right
* shifted by 4 or divided by 16. Overall this results in a scale of 160
*/
int32_t micro_ms2 = value * (SENSOR_G / (16 * 1000 / 100));
val->val1 = micro_ms2 / 1000000;
val->val2 = micro_ms2 % 1000000;
}
static int adxl372_channel_get(const struct device *dev,
enum sensor_channel chan,
struct sensor_value *val)
{
struct adxl372_data *data = dev->data;
switch (chan) {
case SENSOR_CHAN_ACCEL_X:
adxl372_accel_convert(val, data->sample.x);
break;
case SENSOR_CHAN_ACCEL_Y:
adxl372_accel_convert(val, data->sample.y);
break;
case SENSOR_CHAN_ACCEL_Z:
adxl372_accel_convert(val, data->sample.z);
break;
case SENSOR_CHAN_ACCEL_XYZ:
adxl372_accel_convert(val++, data->sample.x);
adxl372_accel_convert(val++, data->sample.y);
adxl372_accel_convert(val, data->sample.z);
break;
default:
return -ENOTSUP;
}
return 0;
}
static const struct sensor_driver_api adxl372_api_funcs = {
.attr_set = adxl372_attr_set,
.sample_fetch = adxl372_sample_fetch,
.channel_get = adxl372_channel_get,
#ifdef CONFIG_ADXL372_TRIGGER
.trigger_set = adxl372_trigger_set,
#endif
};
static int adxl372_probe(const struct device *dev)
{
const struct adxl372_dev_config *cfg = dev->config;
uint8_t dev_id, part_id;
int ret;
ret = adxl372_reg_read(dev, ADXL372_DEVID, &dev_id);
if (ret) {
return ret;
}
ret = adxl372_reg_read(dev, ADXL372_PARTID, &part_id);
if (ret) {
return ret;
}
if (dev_id != ADXL372_DEVID_VAL || part_id != ADXL372_PARTID_VAL) {
LOG_ERR("failed to read id (0x%X:0x%X)", dev_id, part_id);
return -ENODEV;
}
#ifdef CONFIG_ADXL372_I2C
/*
* When sharing an SDA bus, the ADXL372 Silcon REV < 3 may prevent
* communication with other devices on that bus.
*/
adxl372_reg_read(dev, ADXL372_REVID, &dev_id);
if (dev_id < 3) {
LOG_WRN("The ADXL372 Rev %u only supports point to point I2C communication!",
dev_id);
}
#endif
/* Device settings */
ret = adxl372_set_op_mode(dev, ADXL372_STANDBY);
if (ret) {
return ret;
}
ret = adxl372_reset(dev);
if (ret) {
return ret;
}
ret = adxl372_set_hpf_corner(dev, cfg->hpf);
if (ret) {
return ret;
}
ret = adxl372_set_bandwidth(dev, cfg->bw);
if (ret) {
return ret;
}
ret = adxl372_set_odr(dev, cfg->odr);
if (ret) {
return ret;
}
ret = adxl372_set_wakeup_rate(dev, cfg->wur);
if (ret) {
return ret;
}
ret = adxl372_set_autosleep(dev, cfg->autosleep);
if (ret) {
return ret;
}
ret = adxl372_set_instant_on_th(dev, cfg->th_mode);
if (ret) {
return ret;
}
ret = adxl372_set_activity_threshold_xyz(dev, ADXL372_X_THRESH_ACT_H,
&cfg->activity_th);
if (ret) {
return ret;
}
ret = adxl372_set_activity_threshold_xyz(dev, ADXL372_X_THRESH_INACT_H,
&cfg->inactivity_th);
if (ret) {
return ret;
}
ret = adxl372_set_activity_time(dev, cfg->activity_time);
if (ret) {
return ret;
}
ret = adxl372_set_inactivity_time(dev, cfg->inactivity_time);
if (ret) {
return ret;
}
ret = adxl372_set_filter_settle(dev, cfg->filter_settle);
if (ret) {
return ret;
}
ret = adxl372_configure_fifo(dev, cfg->fifo_config.fifo_mode,
cfg->fifo_config.fifo_format,
cfg->fifo_config.fifo_samples);
if (ret) {
return ret;
}
#ifdef CONFIG_ADXL372_TRIGGER
if (adxl372_init_interrupt(dev) < 0) {
LOG_ERR("Failed to initialize interrupt!");
return -EIO;
}
#endif
ret = adxl372_interrupt_config(dev, cfg->int1_config, cfg->int2_config);
if (ret) {
return ret;
}
ret = adxl372_set_op_mode(dev, cfg->op_mode);
if (ret) {
return ret;
}
return adxl372_set_act_proc_mode(dev, cfg->act_proc_mode);
}
static int adxl372_init(const struct device *dev)
{
struct adxl372_data *data = dev->data;
const struct adxl372_dev_config *cfg = dev->config;
#ifdef CONFIG_ADXL372_I2C
data->bus = device_get_binding(cfg->i2c_port);
if (data->bus == NULL) {
LOG_ERR("Failed to get pointer to %s device!",
cfg->i2c_port);
return -EINVAL;
}
#endif
#ifdef CONFIG_ADXL372_SPI
data->bus = device_get_binding(cfg->spi_port);
if (!data->bus) {
LOG_ERR("spi device not found: %s", cfg->spi_port);
return -EINVAL;
}
/* CPOL=0, CPHA=0, max 10MHz */
data->spi_cfg.operation = SPI_WORD_SET(8) | SPI_TRANSFER_MSB;
data->spi_cfg.frequency = cfg->spi_max_frequency;
data->spi_cfg.slave = cfg->spi_slave;
#if DT_INST_SPI_DEV_HAS_CS_GPIOS(0)
/* handle SPI CS thru GPIO if it is the case */
data->adxl372_cs_ctrl.gpio_dev = device_get_binding(cfg->gpio_cs_port);
if (!data->adxl372_cs_ctrl.gpio_dev) {
LOG_ERR("Unable to get GPIO SPI CS device");
return -ENODEV;
}
data->adxl372_cs_ctrl.gpio_pin = cfg->cs_gpio;
data->adxl372_cs_ctrl.gpio_dt_flags = cfg->cs_flags;
data->adxl372_cs_ctrl.delay = 0U;
data->spi_cfg.cs = &data->adxl372_cs_ctrl;
#endif
#endif /* CONFIG_ADXL372_SPI */
if (adxl372_probe(dev) < 0) {
return -ENODEV;
}
return 0;
}
static struct adxl372_data adxl372_data;
static const struct adxl372_dev_config adxl372_config = {
#ifdef CONFIG_ADXL372_I2C
.i2c_port = DT_INST_BUS_LABEL(0),
.i2c_addr = DT_INST_REG_ADDR(0),
#endif
#ifdef CONFIG_ADXL372_SPI
.spi_port = DT_INST_BUS_LABEL(0),
.spi_slave = DT_INST_REG_ADDR(0),
.spi_max_frequency = DT_INST_PROP(0, spi_max_frequency),
#if DT_INST_SPI_DEV_HAS_CS_GPIOS(0)
.gpio_cs_port = DT_INST_SPI_DEV_CS_GPIOS_LABEL(0),
.cs_gpio = DT_INST_SPI_DEV_CS_GPIOS_PIN(0),
.cs_flags = DT_INST_SPI_DEV_CS_GPIOS_FLAGS(0),
#endif
#endif
#ifdef CONFIG_ADXL372_TRIGGER
.gpio_port = DT_INST_GPIO_LABEL(0, int1_gpios),
.int_gpio = DT_INST_GPIO_PIN(0, int1_gpios),
.int_flags = DT_INST_GPIO_FLAGS(0, int1_gpios),
#endif
.max_peak_detect_mode = IS_ENABLED(CONFIG_ADXL372_PEAK_DETECT_MODE),
#ifdef CONFIG_ADXL372_ODR_400HZ
.odr = ADXL372_ODR_400HZ,
#elif CONFIG_ADXL372_ODR_800HZ
.odr = ADXL372_ODR_800HZ,
#elif CONFIG_ADXL372_ODR_1600HZ
.odr = ADXL372_ODR_1600HZ,
#elif CONFIG_ADXL372_ODR_3200HZ
.odr = ADXL372_ODR_3200HZ,
#elif CONFIG_ADXL372_ODR_6400HZ
.odr = ADXL372_ODR_6400HZ,
#endif
#ifdef CONFIG_ADXL372_BW_200HZ
.bw = ADXL372_BW_200HZ,
#elif CONFIG_ADXL372_BW_400HZ
.bw = ADXL372_BW_400HZ,
#elif CONFIG_ADXL372_BW_800HZ
.bw = ADXL372_BW_800HZ,
#elif CONFIG_ADXL372_BW_1600HZ
.bw = ADXL372_BW_1600HZ,
#elif CONFIG_ADXL372_BW_3200HZ
.bw = ADXL372_BW_3200HZ,
#elif CONFIG_ADXL372_LPF_DISABLE
.bw = ADXL372_BW_LPF_DISABLED,
#endif
#ifdef CONFIG_ADXL372_HPF_CORNER0
.hpf = ADXL372_HPF_CORNER_0,
#elif CONFIG_ADXL372_HPF_CORNER1
.hpf = ADXL372_HPF_CORNER_1,
#elif CONFIG_ADXL372_HPF_CORNER2
.hpf = ADXL372_HPF_CORNER_2,
#elif CONFIG_ADXL372_HPF_CORNER3
.hpf = ADXL372_HPF_CORNER_3,
#elif CONFIG_ADXL372_HPF_DISABLE
.hpf = ADXL372_HPF_DISABLED,
#endif
#ifdef CONFIG_ADXL372_TRIGGER
.act_proc_mode = ADXL372_LINKED,
#else
.act_proc_mode = ADXL372_LOOPED,
#endif
.th_mode = ADXL372_INSTANT_ON_LOW_TH,
.autosleep = false,
.wur = ADXL372_WUR_52ms,
.activity_th.thresh = CONFIG_ADXL372_ACTIVITY_THRESHOLD / 100,
.activity_th.referenced =
IS_ENABLED(CONFIG_ADXL372_REFERENCED_ACTIVITY_DETECTION_MODE),
.activity_th.enable = 1,
.activity_time = CONFIG_ADXL372_ACTIVITY_TIME,
.inactivity_th.thresh = CONFIG_ADXL372_INACTIVITY_THRESHOLD / 100,
.inactivity_th.referenced =
IS_ENABLED(CONFIG_ADXL372_REFERENCED_ACTIVITY_DETECTION_MODE),
.inactivity_th.enable = 1,
.inactivity_time = CONFIG_ADXL372_INACTIVITY_TIME,
.filter_settle = ADXL372_FILTER_SETTLE_370,
.fifo_config.fifo_mode = ADXL372_FIFO_STREAMED,
.fifo_config.fifo_format = ADXL372_XYZ_PEAK_FIFO,
.fifo_config.fifo_samples = 128,
.op_mode = ADXL372_FULL_BW_MEASUREMENT,
};
DEVICE_DT_INST_DEFINE(0, adxl372_init, NULL,
&adxl372_data, &adxl372_config, POST_KERNEL,
CONFIG_SENSOR_INIT_PRIORITY, &adxl372_api_funcs);
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