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bma530_features.c
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bma530_features.c
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/**
* Copyright (c) 2024 Bosch Sensortec GmbH. All rights reserved.
*
* BSD-3-Clause
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* @file bma530_features.c
* @date 2024-07-29
* @version v4.2.0
*
*/
/******************************************************************************/
/****************************** Header files **********************************/
/******************************************************************************/
#include "bma530_features.h"
/******************************************************************************/
/*********************** Static function declarations *************************/
/******************************************************************************/
/*!
* @brief Internal API to verify the validity of the primary device handle which
* is passed as argument.
*
* @param[in] dev : Structure instance of bma5_dev.
*
* @return Result of API execution status
* @retval BMA5_OK -> device handle is valid
* @retval BMA5_E_NULL_PTR -> Null pointer error
*/
static int8_t verify_handle(const struct bma5_dev *dev);
/******************************************************************************/
/*********************** User function definitions ****************************/
/******************************************************************************/
/*!
* @brief This API is the entry point.
* Call this API before using all other APIs.
* This API reads the chip-id of the sensor which is the first step to
* verify the sensor and also it configures the read mechanism of SPI and
* I2C interface.
*/
int8_t bma530_init(struct bma5_dev *dev)
{
/* Variable to store the function result */
int8_t result;
/* Variable to get chip id */
uint8_t data = 0;
/* Null-pointer check */
result = verify_handle(dev);
if (result == BMA5_OK)
{
dev->chip_id = 0;
if (dev->intf == BMA5_SPI_INTF)
{
dev->dummy_byte = 1;
}
else
{
dev->dummy_byte = 0;
}
/* Dummy read results in NACK. Hence result is not checked */
(void) bma5_get_regs(BMA530_REG_CHIP_ID, &data, 1, dev);
result = bma5_get_regs(BMA530_REG_CHIP_ID, &data, 1, dev);
if (result == BMA5_OK)
{
/* Assign Chip Id */
dev->chip_id = data;
}
if (dev->chip_id != BMA530_CHIP_ID)
{
result = BMA5_E_DEV_NOT_FOUND;
}
}
else
{
result = BMA5_E_NULL_PTR;
}
return result;
}
/*!
* @brief This API gets feature output status from the register.
*/
int8_t bma530_get_feat_eng_feature_out(struct bma530_feat_eng_feat_out *feat_out, struct bma5_dev *dev)
{
/* Variable to store the function result */
int8_t result;
/* Array to store feature engine GPR feature outputs */
uint8_t reg_data[5];
/* Array to store step counter data */
uint8_t step_cntr[3];
if (feat_out == NULL)
{
result = BMA5_E_NULL_PTR;
}
else
{
/* Get the feature engine GPR feature output data */
result = bma5_get_regs(BMA530_REG_FEAT_ENG_GPR_1, reg_data, 5, dev);
if (result == BMA5_OK)
{
step_cntr[0] = BMA5_GET_BITS_POS_0(reg_data[1], BMA530_STEP_CNT_OUT_0);
step_cntr[1] = BMA5_GET_BITS_POS_0(reg_data[2], BMA530_STEP_CNT_OUT_1);
step_cntr[2] = BMA5_GET_BITS_POS_0(reg_data[3], BMA530_STEP_CNT_OUT_2);
feat_out->step_cntr_out =
(uint32_t)(step_cntr[0] | ((uint16_t)step_cntr[1] << 8) | ((uint32_t)step_cntr[2] << 16));
feat_out->orientation_portrait_landscape = BMA5_GET_BITS_POS_0(reg_data[4],
BMA530_ORIENTATION_PORTRAIT_LANDSCAPE);
feat_out->activ_stat = BMA5_GET_BITS(reg_data[4], BMA530_ACTIV_STAT);
feat_out->orientation_face_up_down = BMA5_GET_BITS(reg_data[4], BMA530_ORIENTATION_FACE_UP_DOWN);
feat_out->gen_int1_stat = BMA5_GET_BITS(reg_data[4], BMA530_GEN_INT1_STAT);
feat_out->gen_int2_stat = BMA5_GET_BITS(reg_data[4], BMA530_GEN_INT2_STAT);
feat_out->gen_int3_stat = BMA5_GET_BITS(reg_data[4], BMA530_GEN_INT3_STAT);
}
}
return result;
}
/*!
* @brief This API sets feature configuration error status
*/
int8_t bma530_set_feat_conf_err(const struct bma530_feat_conf_err *feat_conf_err, struct bma5_dev *dev)
{
/* Variable to define error */
int8_t result = BMA5_OK;
/* Variable to store base address of feature config error */
uint8_t data = BMA530_BASE_ADDR_FEAT_CONF_ERR;
/* Array to store feature config error data */
uint8_t feat_conf_err_data[4] = { 0 };
if (feat_conf_err == NULL)
{
result = BMA5_E_NULL_PTR;
}
else
{
/* Set the feature config error base address to feature engine transmission address to start DMA transaction */
result = bma5_set_regs(BMA5_REG_FEATURE_DATA_ADDR, &data, 1, dev);
if (result == BMA5_OK)
{
/* Get the configuration from the feature engine register */
result = bma5_get_regs(BMA5_REG_FEATURE_DATA_TX, feat_conf_err_data, 4, dev);
if (result == BMA5_OK)
{
feat_conf_err_data[2] = BMA5_SET_BITS(feat_conf_err_data[2],
BMA530_GEN_INT1_CONF_ERR,
feat_conf_err->gen_int1_conf_err);
feat_conf_err_data[2] = BMA5_SET_BITS(feat_conf_err_data[2],
BMA530_GEN_INT2_CONF_ERR,
feat_conf_err->gen_int2_conf_err);
feat_conf_err_data[2] = BMA5_SET_BITS(feat_conf_err_data[2],
BMA530_GEN_INT3_CONF_ERR,
feat_conf_err->gen_int3_conf_err);
feat_conf_err_data[2] = BMA5_SET_BITS(feat_conf_err_data[2],
BMA530_STEP_CONF_ERR,
feat_conf_err->step_conf_err);
feat_conf_err_data[2] = BMA5_SET_BITS(feat_conf_err_data[2],
BMA530_SIG_MO_CONF_ERR,
feat_conf_err->sig_mo_conf_err);
feat_conf_err_data[2] = BMA5_SET_BITS(feat_conf_err_data[2],
BMA530_TILT_CONF_ERR,
feat_conf_err->tilt_conf_err);
feat_conf_err_data[2] = BMA5_SET_BITS(feat_conf_err_data[2],
BMA530_ORIENT_CONF_ERR,
feat_conf_err->orient_conf_err);
feat_conf_err_data[2] = BMA5_SET_BITS(feat_conf_err_data[2],
BMA530_ACC_FOC_CONF_ERR,
feat_conf_err->acc_foc_conf_err);
feat_conf_err_data[0] = feat_conf_err_data[2];
feat_conf_err_data[1] = feat_conf_err_data[3];
/* Set the configuration from the feature engine register */
result = bma5_set_regs(BMA5_REG_FEATURE_DATA_TX, feat_conf_err_data, 2, dev);
}
}
}
return result;
}
/*!
* @brief This API gets feature configuration error status
*/
int8_t bma530_get_feat_conf_err(struct bma530_feat_conf_err *feat_conf_err, struct bma5_dev *dev)
{
/* Variable to define error */
int8_t result = BMA5_OK;
/* Variable to store base address of feature config error */
uint8_t data = BMA530_BASE_ADDR_FEAT_CONF_ERR;
/* Array to store feature config error data */
uint8_t feat_conf_err_data[4] = { 0 };
if (feat_conf_err == NULL)
{
result = BMA5_E_NULL_PTR;
}
else
{
/* Set the feature config error base address to feature engine transmission address to start DMA transaction */
result = bma5_set_regs(BMA5_REG_FEATURE_DATA_ADDR, &data, 1, dev);
if (result == BMA5_OK)
{
/* Get the configuration from the feature engine register */
result = bma5_get_regs(BMA5_REG_FEATURE_DATA_TX, feat_conf_err_data, 4, dev);
if (result == BMA5_OK)
{
feat_conf_err->gen_int1_conf_err = BMA5_GET_BITS(feat_conf_err_data[2], BMA530_GEN_INT1_CONF_ERR);
feat_conf_err->gen_int2_conf_err = BMA5_GET_BITS(feat_conf_err_data[2], BMA530_GEN_INT2_CONF_ERR);
feat_conf_err->gen_int3_conf_err = BMA5_GET_BITS(feat_conf_err_data[2], BMA530_GEN_INT3_CONF_ERR);
feat_conf_err->step_conf_err = BMA5_GET_BITS(feat_conf_err_data[2], BMA530_STEP_CONF_ERR);
feat_conf_err->sig_mo_conf_err = BMA5_GET_BITS(feat_conf_err_data[2], BMA530_SIG_MO_CONF_ERR);
feat_conf_err->tilt_conf_err = BMA5_GET_BITS(feat_conf_err_data[2], BMA530_TILT_CONF_ERR);
feat_conf_err->orient_conf_err = BMA5_GET_BITS(feat_conf_err_data[2], BMA530_ORIENT_CONF_ERR);
feat_conf_err->acc_foc_conf_err = BMA5_GET_BITS(feat_conf_err_data[2], BMA530_ACC_FOC_CONF_ERR);
}
}
}
return result;
}
/*!
* @brief This API sets android compatibility mode
*/
int8_t bma530_set_android_comp_mode(const uint8_t *android_comp, struct bma5_dev *dev)
{
/* Variable to define error */
int8_t result = BMA5_OK;
/* Variable to store base address of android compatibility mode */
uint8_t data = BMA530_BASE_ADDR_GENERAL_SETTINGS;
/* Array to store android compatibility mode data */
uint8_t android_comp_data[4] = { 0 };
if (android_comp == NULL)
{
result = BMA5_E_NULL_PTR;
}
else
{
/* Set the feature axis base address to feature engine transmission address to start DMA transaction */
result = bma5_set_regs(BMA5_REG_FEATURE_DATA_ADDR, &data, 1, dev);
if (result == BMA5_OK)
{
/* Get the configuration from the feature engine register */
result = bma5_get_regs(BMA5_REG_FEATURE_DATA_TX, android_comp_data, 4, dev);
if (result == BMA5_OK)
{
android_comp_data[2] = BMA5_SET_BITS_POS_0(android_comp_data[2], BMA530_ANDROID_COMP, (*android_comp));
android_comp_data[0] = android_comp_data[2];
android_comp_data[1] = android_comp_data[3];
/* Set the configuration from the feature engine register */
result = bma5_set_regs(BMA5_REG_FEATURE_DATA_TX, android_comp_data, 2, dev);
}
}
}
return result;
}
/*!
* @brief This API gets android compatibility mode
*/
int8_t bma530_get_android_comp_mode(uint8_t *android_comp, struct bma5_dev *dev)
{
/* Variable to define error */
int8_t result = BMA5_OK;
/* Variable to store base address of android compatibility mode */
uint8_t data = BMA530_BASE_ADDR_GENERAL_SETTINGS;
/* Array to store android compatibility mode data */
uint8_t android_comp_data[4] = { 0 };
if (android_comp == NULL)
{
result = BMA5_E_NULL_PTR;
}
else
{
/* Set the feature axis base address to feature engine transmission address to start DMA transaction */
result = bma5_set_regs(BMA5_REG_FEATURE_DATA_ADDR, &data, 1, dev);
if (result == BMA5_OK)
{
/* Get the configuration from the feature engine register */
result = bma5_get_regs(BMA5_REG_FEATURE_DATA_TX, android_comp_data, 4, dev);
if (result == BMA5_OK)
{
(*android_comp) = BMA5_GET_BITS_POS_0(android_comp_data[2], BMA530_ANDROID_COMP);
}
}
}
return result;
}
/*!
* @brief This API sets step counter configuration
*/
int8_t bma530_set_step_counter_config(const struct bma530_step_cntr *step_cntr, struct bma5_dev *dev)
{
/* Variable to define error */
int8_t result = BMA5_OK;
/* Variable to store base address of step counter */
uint8_t data = BMA530_BASE_ADDR_STEP_COUNTER;
/* Array to store step counter data */
uint8_t sc_data[38] = { 0 };
/* Variable to store the data to be written in register */
uint16_t watermark_level_1, watermark_level_2, reset_counter, sd_en, sc_en;
uint16_t envelope_up_thres_1, envelope_up_thres_2, envelope_up_decay_coeff_1, envelope_up_decay_coeff_2;
uint16_t envelope_down_thres_1, envelope_down_thres_2, envelope_down_decay_coeff_1, envelope_down_decay_coeff_2;
uint16_t acc_mean_decay_coeff_1, acc_mean_decay_coeff_2, step_dur_mean_decay_coeff_1, step_dur_mean_decay_coeff_2;
uint16_t step_buffer_size, filter_cascade_enabled, step_counter_increment_1, step_counter_increment_2;
uint16_t en_half_step, peak_duration_min_walking, peak_duration_min_running, activity_detection_factor;
uint16_t activity_detection_thres_1, activity_detection_thres_2, step_duration_max, step_duration_window,
en_step_dur_pp, step_dur_thres;
uint16_t en_mcr_pp, mcr_thres_1, mcr_thres_2, filter_coeff_b_2_1, filter_coeff_b_2_2, filter_coeff_b_1_1,
filter_coeff_b_1_2;
uint16_t filter_coeff_b_0_1, filter_coeff_b_0_2, filter_coeff_a_2_1, filter_coeff_a_2_2;
uint16_t filter_coeff_a_1_1, filter_coeff_a_1_2, filter_coeff_scale_a, filter_coeff_scale_b;
if (step_cntr == NULL)
{
result = BMA5_E_NULL_PTR;
}
else
{
/* Set the step counter base address to feature engine transmission address to start DMA transaction */
result = bma5_set_regs(BMA5_REG_FEATURE_DATA_ADDR, &data, 1, dev);
if (result == BMA5_OK)
{
/* Get the configuration from the feature engine register */
result = bma5_get_regs(BMA5_REG_FEATURE_DATA_TX, sc_data, 38, dev);
if (result == BMA5_OK)
{
/* Settings 1 */
watermark_level_1 =
(BMA5_SET_BITS_POS_0(sc_data[2], BMA530_SC_WATERMARK_LVL,
step_cntr->watermark_level) & BMA530_SC_WATERMARK_LVL_MSK);
watermark_level_2 = (uint16_t)(sc_data[3] << 8);
watermark_level_2 =
(BMA5_SET_BITS_POS_0(watermark_level_2, BMA530_SC_WATERMARK_LVL,
step_cntr->watermark_level) & BMA530_SC_WATERMARK_LVL_MSK);
reset_counter =
(BMA5_SET_BITS(sc_data[3], BMA530_SC_RESET_COUNTER,
step_cntr->reset_counter) & BMA530_SC_RESET_COUNTER_MSK);
sd_en = (BMA5_SET_BITS(sc_data[3], BMA530_SC_SD_EN, step_cntr->sd_en) & BMA530_SC_SD_EN_MSK);
sc_en = (BMA5_SET_BITS(sc_data[3], BMA530_SC_SC_EN, step_cntr->sc_en) & BMA530_SC_SC_EN_MSK);
/* Settings 2 */
envelope_up_thres_1 =
(BMA5_SET_BITS_POS_0(sc_data[4], BMA530_SC_ENVELOPE_UP_THRES,
step_cntr->envelope_up_thres) & BMA530_SC_ENVELOPE_UP_THRES_MSK);
envelope_up_thres_2 = (uint16_t)(sc_data[5] << 8);
envelope_up_thres_2 =
(BMA5_SET_BITS_POS_0(envelope_up_thres_2, BMA530_SC_ENVELOPE_UP_THRES,
step_cntr->envelope_up_thres) & BMA530_SC_ENVELOPE_UP_THRES_MSK);
/* Settings 3 */
envelope_up_decay_coeff_1 =
(BMA5_SET_BITS_POS_0(sc_data[6], BMA530_SC_ENVELOPE_UP_DECAY_COEFF,
step_cntr->envelope_up_decay_coeff) & BMA530_SC_ENVELOPE_UP_DECAY_COEFF_MSK);
envelope_up_decay_coeff_2 = (uint16_t)(sc_data[7] << 8);
envelope_up_decay_coeff_2 =
(BMA5_SET_BITS_POS_0(envelope_up_decay_coeff_2, BMA530_SC_ENVELOPE_UP_DECAY_COEFF,
step_cntr->envelope_up_decay_coeff) & BMA530_SC_ENVELOPE_UP_DECAY_COEFF_MSK);
/* Settings 4 */
envelope_down_thres_1 =
(BMA5_SET_BITS_POS_0(sc_data[8], BMA530_SC_ENVELOPE_DOWN_THRES,
step_cntr->envelope_down_thres) & BMA530_SC_ENVELOPE_DOWN_THRES_MSK);
envelope_down_thres_2 = (uint16_t)(sc_data[9] << 8);
envelope_down_thres_2 =
(BMA5_SET_BITS_POS_0(envelope_down_thres_2, BMA530_SC_ENVELOPE_DOWN_THRES,
step_cntr->envelope_down_thres) & BMA530_SC_ENVELOPE_DOWN_THRES_MSK);
/* Settings 5 */
envelope_down_decay_coeff_1 =
(BMA5_SET_BITS_POS_0(sc_data[10], BMA530_SC_ENVELOPE_DOWN_DECAY_COEFF,
step_cntr->envelope_down_decay_coeff) &
BMA530_SC_ENVELOPE_DOWN_DECAY_COEFF_MSK);
envelope_down_decay_coeff_2 = (uint16_t)(sc_data[11] << 8);
envelope_down_decay_coeff_2 =
(BMA5_SET_BITS_POS_0(envelope_down_decay_coeff_2, BMA530_SC_ENVELOPE_DOWN_DECAY_COEFF,
step_cntr->envelope_down_decay_coeff) &
BMA530_SC_ENVELOPE_DOWN_DECAY_COEFF_MSK);
/* Settings 6 */
acc_mean_decay_coeff_1 =
(BMA5_SET_BITS_POS_0(sc_data[12], BMA530_SC_ACC_MEAN_DECAY_COEFF,
step_cntr->acc_mean_decay_coeff) & BMA530_SC_ACC_MEAN_DECAY_COEFF_MSK);
acc_mean_decay_coeff_2 = (uint16_t)(sc_data[13] << 8);
acc_mean_decay_coeff_2 =
(BMA5_SET_BITS_POS_0(acc_mean_decay_coeff_2, BMA530_SC_ACC_MEAN_DECAY_COEFF,
step_cntr->acc_mean_decay_coeff) & BMA530_SC_ACC_MEAN_DECAY_COEFF_MSK);
/* Settings 7 */
step_dur_mean_decay_coeff_1 =
(BMA5_SET_BITS_POS_0(sc_data[14], BMA530_SC_STEP_DUR_MEAN_DECAY_COEFF,
step_cntr->step_dur_mean_decay_coeff) &
BMA530_SC_STEP_DUR_MEAN_DECAY_COEFF_MSK);
step_dur_mean_decay_coeff_2 = (uint16_t)(sc_data[15] << 8);
step_dur_mean_decay_coeff_2 =
(BMA5_SET_BITS_POS_0(step_dur_mean_decay_coeff_2, BMA530_SC_STEP_DUR_MEAN_DECAY_COEFF,
step_cntr->step_dur_mean_decay_coeff) &
BMA530_SC_STEP_DUR_MEAN_DECAY_COEFF_MSK);
/* Settings 8 */
step_buffer_size =
(BMA5_SET_BITS_POS_0(sc_data[16], BMA530_SC_STEP_BUFFER_SIZE,
step_cntr->step_buffer_size) & BMA530_SC_STEP_BUFFER_SIZE_MSK);
filter_cascade_enabled =
(BMA5_SET_BITS(sc_data[16], BMA530_SC_FILTER_CASCADE_ENABLED,
step_cntr->filter_cascade_enabled) & BMA530_SC_FILTER_CASCADE_ENABLED_MSK);
step_counter_increment_1 =
(BMA5_SET_BITS(sc_data[16], BMA530_SC_STEP_COUNTER_INCREAMENT,
step_cntr->step_counter_increment) & BMA530_SC_STEP_COUNTER_INCREAMENT_MSK);
step_counter_increment_2 = (uint16_t)(sc_data[17] << 8);
step_counter_increment_2 =
(BMA5_SET_BITS(step_counter_increment_2, BMA530_SC_STEP_COUNTER_INCREAMENT,
step_cntr->step_counter_increment) & BMA530_SC_STEP_COUNTER_INCREAMENT_MSK);
en_half_step =
(BMA5_SET_BITS(sc_data[17], BMA530_SC_EN_HALF_STEP,
step_cntr->en_half_step) & BMA530_SC_EN_HALF_STEP_MSK);
/* Settings 9 */
peak_duration_min_walking =
(BMA5_SET_BITS_POS_0(sc_data[18], BMA530_SC_PEAK_DUR_MIN_WALKING,
step_cntr->peak_duration_min_walking) & BMA530_SC_PEAK_DUR_MIN_WALKING_MSK);
peak_duration_min_running =
(BMA5_SET_BITS(sc_data[19], BMA530_SC_PEAK_DUR_MIN_RUNNING,
step_cntr->peak_duration_min_running) & BMA530_SC_PEAK_DUR_MIN_RUNNING_MSK);
/* Settings 10 */
activity_detection_factor =
(BMA5_SET_BITS_POS_0(sc_data[20], BMA530_SC_ACTIVITY_DET_FACT,
step_cntr->activity_detection_factor) & BMA530_SC_ACTIVITY_DET_FACT_MSK);
activity_detection_thres_1 =
(BMA5_SET_BITS(sc_data[20], BMA530_SC_ACTIVITY_DET_THRES,
step_cntr->activity_detection_thres) & BMA530_SC_ACTIVITY_DET_THRES_MSK);
activity_detection_thres_2 = (uint16_t)(sc_data[21] << 8);
activity_detection_thres_2 =
(BMA5_SET_BITS(activity_detection_thres_2, BMA530_SC_ACTIVITY_DET_THRES,
step_cntr->activity_detection_thres) & BMA530_SC_ACTIVITY_DET_THRES_MSK);
/* Settings 11 */
step_duration_max =
(BMA5_SET_BITS_POS_0(sc_data[22], BMA530_SC_STEP_DUR_MAX,
step_cntr->step_duration_max) & BMA530_SC_STEP_DUR_MAX_MSK);
step_duration_window =
(BMA5_SET_BITS(sc_data[21], BMA530_SC_STEP_DUR_WINDOW,
step_cntr->step_duration_window) & BMA530_SC_STEP_DUR_WINDOW_MSK);
/* Settings 12 */
en_step_dur_pp =
(BMA5_SET_BITS_POS_0(sc_data[23], BMA530_SC_EN_STEP_DUR_PP,
step_cntr->en_step_dur_pp) & BMA530_SC_EN_STEP_DUR_PP_MSK);
step_dur_thres =
(BMA5_SET_BITS(sc_data[24], BMA530_SC_STEP_DUR_THRES,
step_cntr->step_dur_thres) & BMA530_SC_STEP_DUR_THRES_MSK);
en_mcr_pp =
(BMA5_SET_BITS(sc_data[24], BMA530_SC_EN_MCR_PP, step_cntr->en_mcr_pp) & BMA530_SC_EN_MCR_PP_MSK);
mcr_thres_1 =
(BMA5_SET_BITS(sc_data[24], BMA530_SC_MCR_THRES, step_cntr->mcr_thres) & BMA530_SC_MCR_THRES_MSK);
mcr_thres_2 = (uint16_t)(sc_data[25] << 8);
mcr_thres_2 =
(BMA5_SET_BITS(mcr_thres_2, BMA530_SC_MCR_THRES, step_cntr->mcr_thres) & BMA530_SC_MCR_THRES_MSK);
/* Settings 13 */
filter_coeff_b_2_1 =
(BMA5_SET_BITS_POS_0(sc_data[26], BMA530_SC_FILTER_COEFF_B_2,
step_cntr->filter_coeff_b_2) & BMA530_SC_FILTER_COEFF_B_2_MSK);
filter_coeff_b_2_2 = (uint16_t)(sc_data[27] << 8);
filter_coeff_b_2_2 =
(BMA5_SET_BITS_POS_0(filter_coeff_b_2_2, BMA530_SC_FILTER_COEFF_B_2,
step_cntr->filter_coeff_b_2) & BMA530_SC_FILTER_COEFF_B_2_MSK);
/* Settings 14 */
filter_coeff_b_1_1 =
(BMA5_SET_BITS_POS_0(sc_data[28], BMA530_SC_FILTER_COEFF_B_1,
step_cntr->filter_coeff_b_1) & BMA530_SC_FILTER_COEFF_B_1_MSK);
filter_coeff_b_1_2 = (uint16_t)(sc_data[29] << 8);
filter_coeff_b_1_2 =
(BMA5_SET_BITS_POS_0(filter_coeff_b_1_2, BMA530_SC_FILTER_COEFF_B_1,
step_cntr->filter_coeff_b_1) & BMA530_SC_FILTER_COEFF_B_1_MSK);
/* Settings 15 */
filter_coeff_b_0_1 =
(BMA5_SET_BITS_POS_0(sc_data[30], BMA530_SC_FILTER_COEFF_B_0,
step_cntr->filter_coeff_b_0) & BMA530_SC_FILTER_COEFF_B_0_MSK);
filter_coeff_b_0_2 = (uint16_t)(sc_data[31] << 8);
filter_coeff_b_0_2 =
(BMA5_SET_BITS_POS_0(filter_coeff_b_0_2, BMA530_SC_FILTER_COEFF_B_0,
step_cntr->filter_coeff_b_0) & BMA530_SC_FILTER_COEFF_B_0_MSK);
/* Settings 16 */
filter_coeff_a_2_1 =
(BMA5_SET_BITS_POS_0(sc_data[32], BMA530_SC_FILTER_COEFF_A_2,
step_cntr->filter_coeff_a_2) & BMA530_SC_FILTER_COEFF_A_2_MSK);
filter_coeff_a_2_2 = (uint16_t)(sc_data[33] << 8);
filter_coeff_a_2_2 =
(BMA5_SET_BITS_POS_0(filter_coeff_a_2_2, BMA530_SC_FILTER_COEFF_A_2,
step_cntr->filter_coeff_a_2) & BMA530_SC_FILTER_COEFF_A_2_MSK);
/* Settings 17 */
filter_coeff_a_1_1 =
(BMA5_SET_BITS_POS_0(sc_data[34], BMA530_SC_FILTER_COEFF_A_1,
step_cntr->filter_coeff_a_1) & BMA530_SC_FILTER_COEFF_A_1_MSK);
filter_coeff_a_1_2 = (uint16_t)(sc_data[35] << 8);
filter_coeff_a_1_2 =
(BMA5_SET_BITS_POS_0(filter_coeff_a_1_2, BMA530_SC_FILTER_COEFF_A_1,
step_cntr->filter_coeff_a_1) & BMA530_SC_FILTER_COEFF_A_1_MSK);
/* Settings 18 */
filter_coeff_scale_a =
(BMA5_SET_BITS_POS_0(sc_data[36], BMA530_SC_FILTER_COEFF_SCALE_A,
step_cntr->filter_coeff_scale_a) & BMA530_SC_FILTER_COEFF_SCALE_A_MSK);
filter_coeff_scale_b =
(BMA5_SET_BITS(sc_data[37], BMA530_SC_FILTER_COEFF_SCALE_B,
step_cntr->filter_coeff_scale_b) & BMA530_SC_FILTER_COEFF_SCALE_B_MSK);
sc_data[0] = (uint8_t)watermark_level_1;
sc_data[1] = (uint8_t)((watermark_level_2 | reset_counter | sd_en | sc_en) >> 8);
sc_data[2] = (uint8_t)envelope_up_thres_1;
sc_data[3] = (uint8_t)(envelope_up_thres_2 >> 8);
sc_data[4] = (uint8_t)envelope_up_decay_coeff_1;
sc_data[5] = (uint8_t)(envelope_up_decay_coeff_2 >> 8);
sc_data[6] = (uint8_t)envelope_down_thres_1;
sc_data[7] = (uint8_t)(envelope_down_thres_2 >> 8);
sc_data[8] = (uint8_t)envelope_down_decay_coeff_1;
sc_data[9] = (uint8_t)(envelope_down_decay_coeff_2 >> 8);
sc_data[10] = (uint8_t)acc_mean_decay_coeff_1;
sc_data[11] = (uint8_t)(acc_mean_decay_coeff_2 >> 8);
sc_data[12] = (uint8_t)step_dur_mean_decay_coeff_1;
sc_data[13] = (uint8_t)(step_dur_mean_decay_coeff_2 >> 8);
sc_data[14] = (uint8_t)(step_buffer_size | filter_cascade_enabled | step_counter_increment_1);
sc_data[15] = (uint8_t)((step_counter_increment_2 | en_half_step) >> 8);
sc_data[16] = (uint8_t)peak_duration_min_walking;
sc_data[17] = (uint8_t)(peak_duration_min_running >> 8);
sc_data[18] = (uint8_t)(activity_detection_factor | activity_detection_thres_1);
sc_data[19] = (uint8_t)(activity_detection_thres_2 >> 8);
sc_data[20] = (uint8_t)step_duration_max;
sc_data[21] = (uint8_t)(step_duration_window >> 8);
sc_data[22] = (uint8_t)(en_step_dur_pp | step_dur_thres | en_mcr_pp | mcr_thres_1);
sc_data[23] = (uint8_t)(mcr_thres_2 >> 8);
sc_data[24] = (uint8_t)filter_coeff_b_2_1;
sc_data[25] = (uint8_t)(filter_coeff_b_2_2 >> 8);
sc_data[26] = (uint8_t)filter_coeff_b_1_1;
sc_data[27] = (uint8_t)(filter_coeff_b_1_2 >> 8);
sc_data[28] = (uint8_t)filter_coeff_b_0_1;
sc_data[29] = (uint8_t)(filter_coeff_b_0_2 >> 8);
sc_data[30] = (uint8_t)filter_coeff_a_2_1;
sc_data[31] = (uint8_t)(filter_coeff_a_2_2 >> 8);
sc_data[32] = (uint8_t)filter_coeff_a_1_1;
sc_data[33] = (uint8_t)(filter_coeff_a_1_2 >> 8);
sc_data[34] = (uint8_t)filter_coeff_scale_a;
sc_data[35] = (uint8_t)(filter_coeff_scale_b >> 8);
/* Set the configuration from the feature engine register */
result = bma5_set_regs(BMA5_REG_FEATURE_DATA_TX, sc_data, 36, dev);
}
}
}
return result;
}
/*!
* @brief This API gets step counter configuration
*/
int8_t bma530_get_step_counter_config(struct bma530_step_cntr *step_cntr, struct bma5_dev *dev)
{
/* Variable to define error */
int8_t result = BMA5_OK;
/* Variable to store base address of step counter */
uint8_t data = BMA530_BASE_ADDR_STEP_COUNTER;
/* Array to store step counter data */
uint8_t sc_data[38] = { 0 };
/* Variable to define array offset */
uint8_t idx;
/* Variable to define LSB */
uint16_t lsb;
/* Variable to define MSB */
uint16_t msb;
/* Variable to define a word */
uint16_t lsb_msb;
if (step_cntr == NULL)
{
result = BMA5_E_NULL_PTR;
}
else
{
/* Set the step counter base address to feature engine transmission address to start DMA transaction */
result = bma5_set_regs(BMA5_REG_FEATURE_DATA_ADDR, &data, 1, dev);
if (result == BMA5_OK)
{
/* Get the configuration from the feature engine register */
result = bma5_get_regs(BMA5_REG_FEATURE_DATA_TX, sc_data, 38, dev);
if (result == BMA5_OK)
{
/* First two bytes are dummy bytes */
idx = 2;
/* Settings 1 */
/* Get word to calculate watermark_level, reset_counter, sd_en, and sc_en select from same word */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->watermark_level = lsb_msb & BMA530_SC_WATERMARK_LVL_MSK;
step_cntr->reset_counter = (lsb_msb & BMA530_SC_RESET_COUNTER_MSK) >> BMA530_SC_RESET_COUNTER_POS;
step_cntr->sd_en = (lsb_msb & BMA530_SC_SD_EN_MSK) >> BMA530_SC_SD_EN_POS;
step_cntr->sc_en = (lsb_msb & BMA530_SC_SC_EN_MSK) >> BMA530_SC_SC_EN_POS;
/* Settings 2 */
/* Get word to calculate envelope_up_thres */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->envelope_up_thres = lsb_msb & BMA530_SC_ENVELOPE_UP_THRES_MSK;
/* Settings 3 */
/* Get word to calculate envelope_up_decay_coeff */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->envelope_up_decay_coeff = lsb_msb & BMA530_SC_ENVELOPE_UP_DECAY_COEFF_MSK;
/* Settings 4 */
/* Get word to calculate envelope_down_thres */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->envelope_down_thres = lsb_msb & BMA530_SC_ENVELOPE_DOWN_THRES_MSK;
/* Settings 5 */
/* Get word to calculate envelope_down_decay_coeff */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->envelope_down_decay_coeff = lsb_msb & BMA530_SC_ENVELOPE_DOWN_DECAY_COEFF_MSK;
/* Settings 6 */
/* Get word to calculate acc_mean_decay_coeff */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->acc_mean_decay_coeff = lsb_msb & BMA530_SC_ACC_MEAN_DECAY_COEFF_MSK;
/* Settings 7 */
/* Get word to calculate step_dur_mean_decay_coeff */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->step_dur_mean_decay_coeff = lsb_msb & BMA530_SC_STEP_DUR_MEAN_DECAY_COEFF_MSK;
/* Settings 8 */
/* Get word to calculate step_buffer_size, filter_cascade_enabled, step_counter_increment and
* en_half_step from same word */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->step_buffer_size = lsb_msb & BMA530_SC_STEP_BUFFER_SIZE_MSK;
step_cntr->filter_cascade_enabled = (lsb_msb & BMA530_SC_FILTER_CASCADE_ENABLED_MSK) >>
BMA530_SC_FILTER_CASCADE_ENABLED_POS;
step_cntr->step_counter_increment = (lsb_msb & BMA530_SC_STEP_COUNTER_INCREAMENT_MSK) >>
BMA530_SC_STEP_COUNTER_INCREAMENT_POS;
step_cntr->en_half_step = (lsb_msb & BMA530_SC_EN_HALF_STEP_MSK) >> BMA530_SC_EN_HALF_STEP_POS;
/* Settings 9 */
/* Get word to calculate peak_duration_min_walking and peak_duration_min_running from same word */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->peak_duration_min_walking = lsb_msb & BMA530_SC_PEAK_DUR_MIN_WALKING_MSK;
step_cntr->peak_duration_min_running = (lsb_msb & BMA530_SC_PEAK_DUR_MIN_RUNNING_MSK) >>
BMA530_SC_PEAK_DUR_MIN_RUNNING_POS;
/* Settings 10 */
/* Get word to calculate activity_detection_factor and activity_detection_thres from same word */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->activity_detection_factor = lsb_msb & BMA530_SC_ACTIVITY_DET_FACT_MSK;
step_cntr->activity_detection_thres = (lsb_msb & BMA530_SC_ACTIVITY_DET_THRES_MSK) >>
BMA530_SC_ACTIVITY_DET_THRES_POS;
/* Settings 11 */
/* Get word to calculate step_duration_max and step_duration_window from same word */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->step_duration_max = lsb_msb & BMA530_SC_STEP_DUR_MAX_MSK;
step_cntr->step_duration_window = (lsb_msb & BMA530_SC_STEP_DUR_WINDOW_MSK) >>
BMA530_SC_STEP_DUR_WINDOW_POS;
/* Settings 12 */
/* Get word to calculate en_step_dur_pp, step_dur_thres, en_mcr_pp and mcr_thres from same word */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->en_step_dur_pp = lsb_msb & BMA530_SC_EN_STEP_DUR_PP_MSK;
step_cntr->step_dur_thres = (lsb_msb & BMA530_SC_STEP_DUR_THRES_MSK) >> BMA530_SC_STEP_DUR_THRES_POS;
step_cntr->en_mcr_pp = (lsb_msb & BMA530_SC_EN_MCR_PP_MSK) >> BMA530_SC_EN_MCR_PP_POS;
step_cntr->mcr_thres = (lsb_msb & BMA530_SC_MCR_THRES_MSK) >> BMA530_SC_MCR_THRES_POS;
/* Settings 13 */
/* Get word to calculate filter_coeff_b_2 */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->filter_coeff_b_2 = lsb_msb & BMA530_SC_FILTER_COEFF_B_2_MSK;
/* Settings 14 */
/* Get word to calculate filter_coeff_b_1 */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->filter_coeff_b_1 = lsb_msb & BMA530_SC_FILTER_COEFF_B_1_MSK;
/* Settings 15 */
/* Get word to calculate filter_coeff_b_0 */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->filter_coeff_b_0 = lsb_msb & BMA530_SC_FILTER_COEFF_B_0_MSK;
/* Settings 16 */
/* Get word to calculate filter_coeff_a_2 */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->filter_coeff_a_2 = lsb_msb & BMA530_SC_FILTER_COEFF_A_2_MSK;
/* Settings 17 */
/* Get word to calculate filter_coeff_a_1 */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->filter_coeff_a_1 = lsb_msb & BMA530_SC_FILTER_COEFF_A_1_MSK;
/* Settings 18 */
/* Get word to calculate filter_coeff_scale_a and filter_coeff_scale_b from same word */
lsb = (uint16_t) sc_data[idx++];
msb = ((uint16_t) sc_data[idx++] << 8);
lsb_msb = (uint16_t)(lsb | msb);
step_cntr->filter_coeff_scale_a = lsb_msb & BMA530_SC_FILTER_COEFF_SCALE_A_MSK;
step_cntr->filter_coeff_scale_b = (lsb_msb & BMA530_SC_FILTER_COEFF_SCALE_B_MSK) >>
BMA530_SC_FILTER_COEFF_SCALE_B_POS;
}
}
}
return result;
}
/*!
* @brief This API gets default step counter configuration
*/
int8_t bma530_get_default_step_counter_config(struct bma530_step_cntr *step_cntr, struct bma5_dev *dev)
{
/* Variable to define error */
int8_t result = BMA5_OK;
/* Variable to store base address of step counter */
uint8_t data = BMA530_BASE_ADDR_STEP_COUNTER;
if (step_cntr == NULL)
{
result = BMA5_E_NULL_PTR;
}
else
{
/* Set the step counter base address to feature engine transmission address to start DMA transaction */
result = bma5_set_regs(BMA5_REG_FEATURE_DATA_ADDR, &data, 1, dev);
if (result == BMA5_OK)
{
/* Settings 1 */
step_cntr->watermark_level = BMA530_SC_DEFAULT_WATERMARK_LEVEL;
step_cntr->reset_counter = BMA530_SC_DEFAULT_RESET_COUNTER;
step_cntr->sd_en = BMA530_SC_DEFAULT_SD_EN;
step_cntr->sc_en = BMA530_SC_DEFAULT_SC_EN;
if (dev->context == BMA5_HEARABLE)
{
/* Settings 2 */
step_cntr->envelope_up_thres = BMA530_STEP_COUNTER_2_ENVELOPE_UP_THRES_H;
/* Settings 3 */
step_cntr->envelope_up_decay_coeff = BMA530_STEP_COUNTER_3_ENVELOPE_UP_DECAY_COEFF_H;
/* Settings 4 */
step_cntr->envelope_down_thres = BMA530_STEP_COUNTER_4_ENVELOPE_DOWN_THRES_H;
/* Settings 5 */
step_cntr->envelope_down_decay_coeff = BMA530_STEP_COUNTER_5_ENVELOPE_DOWN_DECAY_COEFF_H;
/* Settings 6 */
step_cntr->acc_mean_decay_coeff = BMA530_STEP_COUNTER_6_ACC_MEAN_DECAY_COEFF_H;
/* Settings 7 */
step_cntr->step_dur_mean_decay_coeff = BMA530_STEP_COUNTER_7_STEP_DUR_MEAN_DECAY_COEFF_H;
/* Settings 8 */
step_cntr->step_buffer_size = BMA530_STEP_COUNTER_8_STEP_BUFFER_SIZE_H;
step_cntr->filter_cascade_enabled = BMA530_STEP_COUNTER_8_FILTER_CASCADE_ENABLED_H;
step_cntr->step_counter_increment = BMA530_STEP_COUNTER_8_STEP_COUNTER_INCREMENT_H;
step_cntr->en_half_step = BMA530_STEP_COUNTER_8_EN_HALF_STEP_H;
/* Settings 9 */
step_cntr->peak_duration_min_walking = BMA530_STEP_COUNTER_9_PEAK_DURATION_MIN_WALKING_H;
step_cntr->peak_duration_min_running = BMA530_STEP_COUNTER_9_PEAK_DURATION_MIN_RUNNING_H;
/* Settings 10 */
step_cntr->activity_detection_factor = BMA530_STEP_COUNTER_10_ACTIVITY_DETECTION_FACTOR_H;
step_cntr->activity_detection_thres = BMA530_STEP_COUNTER_10_ACTIVITY_DETECTION_THRES_H;
/* Settings 11 */
step_cntr->step_duration_max = BMA530_STEP_COUNTER_11_STEP_DURATION_MAX_H;