186 lines
6.0 KiB
C
186 lines
6.0 KiB
C
/**
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******************************************************************************
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* @file platform.h
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* @author IMG SW Application Team
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* @brief This file contains all the platform functions prototypes
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******************************************************************************
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* @attention
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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 _PLATFORM_H_
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#define _PLATFORM_H_
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#pragma once
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#include <stdint.h>
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#include <string.h>
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typedef int32_t (*VL53L5CX_get_tick_Func)(void);
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typedef int32_t (*VL53L5CX_write_Func)(uint16_t, uint16_t, uint8_t *, uint16_t);
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typedef int32_t (*VL53L5CX_read_Func)(uint16_t, uint16_t, uint8_t *, uint16_t);
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/**
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* @brief Structure VL53L5CX_Platform needs to be filled by the customer,
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* depending on his platform. At least, it contains the VL53L5CX I2C address.
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* Some additional fields can be added, as descriptors, or platform
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* dependencies. Anything added into this structure is visible into the platform
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* layer.
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*/
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typedef struct
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{
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/* To be filled with customer's platform. At least an I2C address/descriptor
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* needs to be added */
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/* Example for most standard platform : I2C address of sensor */
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uint16_t address;
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VL53L5CX_write_Func Write;
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VL53L5CX_read_Func Read;
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VL53L5CX_get_tick_Func GetTick;
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} VL53L5CX_Platform;
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/*
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* @brief The macro below is used to define the number of target per zone sent
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* through I2C. This value can be changed by user, in order to tune I2C
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* transaction, and also the total memory size (a lower number of target per
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* zone means a lower RAM usage).
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*/
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#ifndef VL53L5CX_NB_TARGET_PER_ZONE
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#define VL53L5CX_NB_TARGET_PER_ZONE (1U)
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#endif
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/*
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* @brief The macro below can be used to avoid data conversion into the driver.
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* By default there is a conversion between firmware and user data. Using this macro
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* allows to use the firmware format instead of user format. The firmware format allows
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* an increased precision.
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*/
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// #define VL53L5CX_USE_RAW_FORMAT
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/*
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* @brief All macro below are used to configure the sensor output. User can
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* define some macros if he wants to disable selected output, in order to reduce
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* I2C access.
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*/
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// #define VL53L5CX_DISABLE_AMBIENT_PER_SPAD
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// #define VL53L5CX_DISABLE_NB_SPADS_ENABLED
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// #define VL53L5CX_DISABLE_NB_TARGET_DETECTED
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// #define VL53L5CX_DISABLE_SIGNAL_PER_SPAD
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// #define VL53L5CX_DISABLE_RANGE_SIGMA_MM
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// #define VL53L5CX_DISABLE_DISTANCE_MM
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// #define VL53L5CX_DISABLE_REFLECTANCE_PERCENT
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// #define VL53L5CX_DISABLE_TARGET_STATUS
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// #define VL53L5CX_DISABLE_MOTION_INDICATOR
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/*
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* @brief The macro below can be changed to switch between little and big
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* endian. By default, VL53L5CX ULD works with little endian, but user can
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* choose big endian. Just use selected the wanted configuration using macro
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* PROCESSOR_LITTLE_ENDIAN.
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*/
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#define PROCESSOR_LITTLE_ENDIAN
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#ifdef PROCESSOR_LITTLE_ENDIAN
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#define SWAP_UINT16(x) (x)
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#define SWAP_UINT32(x) (x)
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#else
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#define SWAP_UINT16(x) (((x) >> 8) | ((x) << 8))
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#define SWAP_UINT32(x) (((x) >> 24) | (((x) & 0x00FF0000) >> 8) \
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| (((x) & 0x0000FF00) << 8) | ((x) << 24))
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#endif
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/**
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* @param (VL53L5CX_Platform*) p_platform : Pointer of VL53L5CX platform
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* structure.
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* @param (uint16_t) Address : I2C location of value to read.
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* @param (uint8_t) *p_values : Pointer of value to read.
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* @return (uint8_t) status : 0 if OK
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*/
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uint8_t VL53L5CX_RdByte(
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VL53L5CX_Platform *p_platform,
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uint16_t RegisterAdress,
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uint8_t *p_value);
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/**
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* @brief Mandatory function used to write one single byte.
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* @param (VL53L5CX_Platform*) p_platform : Pointer of VL53L5CX platform
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* structure.
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* @param (uint16_t) Address : I2C location of value to read.
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* @param (uint8_t) value : Pointer of value to write.
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* @return (uint8_t) status : 0 if OK
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*/
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uint8_t VL53L5CX_WrByte(
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VL53L5CX_Platform *p_platform,
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uint16_t RegisterAdress,
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uint8_t value);
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/**
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* @brief Mandatory function used to read multiples bytes.
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* @param (VL53L5CX_Platform*) p_platform : Pointer of VL53L5CX platform
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* structure.
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* @param (uint16_t) Address : I2C location of values to read.
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* @param (uint8_t) *p_values : Buffer of bytes to read.
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* @param (uint32_t) size : Size of *p_values buffer.
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* @return (uint8_t) status : 0 if OK
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*/
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uint8_t VL53L5CX_RdMulti(
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VL53L5CX_Platform *p_platform,
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uint16_t RegisterAdress,
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uint8_t *p_values,
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uint32_t size);
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/**
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* @brief Mandatory function used to write multiples bytes.
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* @param (VL53L5CX_Platform*) p_platform : Pointer of VL53L5CX platform
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* structure.
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* @param (uint16_t) Address : I2C location of values to write.
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* @param (uint8_t) *p_values : Buffer of bytes to write.
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* @param (uint32_t) size : Size of *p_values buffer.
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* @return (uint8_t) status : 0 if OK
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*/
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uint8_t VL53L5CX_WrMulti(
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VL53L5CX_Platform *p_platform,
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uint16_t RegisterAdress,
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uint8_t *p_values,
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uint32_t size);
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/**
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* @brief Mandatory function, used to swap a buffer. The buffer size is always a
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* multiple of 4 (4, 8, 12, 16, ...).
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* @param (uint8_t*) buffer : Buffer to swap, generally uint32_t
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* @param (uint16_t) size : Buffer size to swap
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*/
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void VL53L5CX_SwapBuffer(
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uint8_t *buffer,
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uint16_t size);
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/**
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* @brief Mandatory function, used to wait during an amount of time. It must be
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* filled as it's used into the API.
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* @param (VL53L5CX_Platform*) p_platform : Pointer of VL53L5CX platform
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* structure.
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* @param (uint32_t) TimeMs : Time to wait in ms.
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* @return (uint8_t) status : 0 if wait is finished.
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*/
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uint8_t VL53L5CX_WaitMs(
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VL53L5CX_Platform *p_platform,
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uint32_t TimeMs);
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#endif // _PLATFORM_H_
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