187 lines
6.8 KiB
C
187 lines
6.8 KiB
C
/**
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*
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* Copyright (c) 2021 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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#ifndef VL53L8CX_PLUGIN_DETECTION_THRESHOLDS_H_
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#define VL53L8CX_PLUGIN_DETECTION_THRESHOLDS_H_
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#include "vl53l8cx_api.h"
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/**
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* @brief Macro VL53L8CX_NB_THRESHOLDS indicates the number of checkers. This
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* value cannot be changed.
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*/
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#define VL53L8CX_NB_THRESHOLDS ((uint8_t)64U)
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/**
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* @brief Inner Macro for API. Not for user, only for development.
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*/
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#define VL53L8CX_DCI_DET_THRESH_CONFIG ((uint16_t)0x5488U)
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#define VL53L8CX_DCI_DET_THRESH_GLOBAL_CONFIG ((uint16_t)0xB6E0U)
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#define VL53L8CX_DCI_DET_THRESH_START ((uint16_t)0xB6E8U)
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#define VL53L8CX_DCI_DET_THRESH_VALID_STATUS ((uint16_t)0xB9F0U)
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/**
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* @brief Macro VL53L8CX_LAST_THRESHOLD is used to indicate the end of checkers
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* programming.
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*/
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#define VL53L8CX_LAST_THRESHOLD ((uint8_t)128U)
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/**
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* @brief The following macro are used to define the 'param_type' of a checker.
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* They indicate what is the measurement to catch.
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*/
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#define VL53L8CX_DISTANCE_MM ((uint8_t)1U)
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#define VL53L8CX_SIGNAL_PER_SPAD_KCPS ((uint8_t)2U)
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#define VL53L8CX_RANGE_SIGMA_MM ((uint8_t)4U)
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#define VL53L8CX_AMBIENT_PER_SPAD_KCPS ((uint8_t)8U)
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#define VL53L8CX_NB_TARGET_DETECTED ((uint8_t)9U)
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#define VL53L8CX_TARGET_STATUS ((uint8_t)12U)
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#define VL53L8CX_NB_SPADS_ENABLED ((uint8_t)13U)
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#define VL53L8CX_MOTION_INDICATOR ((uint8_t)19U)
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/**
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* @brief The following macro are used to define the 'type' of a checker.
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* They indicate the window of measurements, defined by low and a high
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* thresholds.
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*/
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#define VL53L8CX_IN_WINDOW ((uint8_t)0U)
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#define VL53L8CX_OUT_OF_WINDOW ((uint8_t)1U)
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#define VL53L8CX_LESS_THAN_EQUAL_MIN_CHECKER ((uint8_t)2U)
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#define VL53L8CX_GREATER_THAN_MAX_CHECKER ((uint8_t)3U)
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#define VL53L8CX_EQUAL_MIN_CHECKER ((uint8_t)4U)
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#define VL53L8CX_NOT_EQUAL_MIN_CHECKER ((uint8_t)5U)
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/**
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* @brief The following macro are used to define multiple checkers in the same
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* zone, using operators. Please note that the first checker MUST always be a OR
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* operation.
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*/
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#define VL53L8CX_OPERATION_NONE ((uint8_t)0U)
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#define VL53L8CX_OPERATION_OR ((uint8_t)0U)
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#define VL53L8CX_OPERATION_AND ((uint8_t)2U)
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/**
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* @brief Structure VL53L8CX_DetectionThresholds contains a single threshold.
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* This structure is never used alone, it must be used as an array of 64
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* thresholds (defined by macro VL53L8CX_NB_THRESHOLDS).
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*/
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typedef struct {
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/* Low threshold */
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int32_t param_low_thresh;
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/* High threshold */
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int32_t param_high_thresh;
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/* Measurement to catch (VL53L8CX_MEDIAN_RANGE_MM,...)*/
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uint8_t measurement;
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/* Windows type (VL53L8CX_IN_WINDOW, VL53L8CX_OUT_WINDOW, ...) */
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uint8_t type;
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/* Zone id. Please read VL53L5 user manual to find the zone id.Set macro
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* VL53L8CX_LAST_THRESHOLD to indicates the end of checkers */
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uint8_t zone_num;
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/* Mathematics operation (AND/OR). The first threshold is always OR.*/
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uint8_t mathematic_operation;
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}VL53L8CX_DetectionThresholds;
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/**
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* @brief This function allows indicating if the detection thresholds are
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* enabled.
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* @param (VL53L8CX_Configuration) *p_dev : VL53L8CX configuration structure.
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* @param (uint8_t) *p_enabled : Set to 1 if enabled, or 0 if disable.
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* @return (uint8_t) status : 0 if OK
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*/
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uint8_t vl53l8cx_get_detection_thresholds_enable(
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VL53L8CX_Configuration *p_dev,
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uint8_t *p_enabled);
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/**
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* @brief This function allows enable the detection thresholds.
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* @param (VL53L8CX_Configuration) *p_dev : VL53L8CX configuration structure.
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* @param (uint8_t) enabled : Set to 1 to enable, or 0 to disable thresholds.
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* @return (uint8_t) status : 0 if programming is OK
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*/
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uint8_t vl53l8cx_set_detection_thresholds_enable(
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VL53L8CX_Configuration *p_dev,
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uint8_t enabled);
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/**
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* @brief This function allows getting the detection thresholds.
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* @param (VL53L8CX_Configuration) *p_dev : VL53L8CX configuration structure.
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* @param (VL53L8CX_DetectionThresholds) *p_thresholds : Array of 64 thresholds.
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* @return (uint8_t) status : 0 if programming is OK
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*/
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uint8_t vl53l8cx_get_detection_thresholds(
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VL53L8CX_Configuration *p_dev,
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VL53L8CX_DetectionThresholds *p_thresholds);
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/**
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* @brief This function allows programming the detection thresholds.
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* @param (VL53L8CX_Configuration) *p_dev : VL53L8CX configuration structure.
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* @param (VL53L8CX_DetectionThresholds) *p_thresholds : Array of 64 thresholds.
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* @return (uint8_t) status : 0 if programming is OK
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*/
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uint8_t vl53l8cx_set_detection_thresholds(
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VL53L8CX_Configuration *p_dev,
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VL53L8CX_DetectionThresholds *p_thresholds);
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/**
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* @brief This function is used to enable or disable the auto-stop feature.
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* When ToF runs in autonomous mode with detection threshold, the sensor
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* only emits an interrupt (INT pin) when a threshold is reached. Interrupt
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* is raised when the measurement is completed. It is possible to abort the ranging
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* without waiting for end of measurement completed by enabling the auto-stop. The
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* sensor emits an interrupt and quickly aborts the measurements in progress. Please
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* note that vl53l8cx_stop_ranging() function needs to be used after interrupt raised
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* for a clean stop.
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* This function is used to get the auto_stop flag.
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* @param (VL53L8CX_Configuration) *p_dev : VL53L8CX configuration structure.
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* @param (uint8_t) *p_auto_stop : Pointer of auto-stop feature, 0 disabled
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* (default) or 1 enabled.
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* @return (uint8_t) status : 0 if programming is OK
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*/
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uint8_t vl53l8cx_get_detection_thresholds_auto_stop(
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VL53L8CX_Configuration *p_dev,
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uint8_t *p_auto_stop);
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/**
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* @brief This function is used to enable or disable the auto-stop feature.
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* When ToF runs in autonomous mode with detection threshold, the sensor
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* only emits an interrupt (INT pin) when a threshold is reached. Interrupt
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* is raised when the measurement is completed. It is possible to abort the ranging
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* without waiting for end of measurement completed by enabling the auto-stop. The
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* sensor emits an interrupt and quickly aborts the measurements in progress. Please
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* note that vl53l8cx_stop_ranging() function needs to be used after interrupt raised
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* for a clean stop.
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* This function is used to set the auto_stop flag.
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* @param (VL53L8CX_Configuration) *p_dev : VL53L8CX configuration structure.
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* @param (uint8_t) *p_auto_stop : Pointer of auto-stop feature, 0 disabled
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* (default) or 1 enabled.
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* @return (uint8_t) status : 0 if programming is OK
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*/
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uint8_t vl53l8cx_set_detection_thresholds_auto_stop(
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VL53L8CX_Configuration *p_dev,
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uint8_t auto_stop);
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#endif /* VL53L8CX_PLUGIN_DETECTION_THRESHOLDS_H_ */
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