249 lines
8.7 KiB
C
249 lines
8.7 KiB
C
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/*******************************************************************************
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Copyright <EFBFBD> 2015, STMicroelectronics International N.V.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of STMicroelectronics nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
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NON-INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS ARE DISCLAIMED.
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IN NO EVENT SHALL STMICROELECTRONICS INTERNATIONAL N.V. BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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********************************************************************************/
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#ifndef _VL53L0X_PLATFORM_H_
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#define _VL53L0X_PLATFORM_H_
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#include "vl53l0x_def.h"
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#include "vl53l0x_platform_log.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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int VL53L0X_i2c_init(char * devPath, int devAddr);
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int32_t VL53L0X_i2c_close(void);
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/**
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* @file vl53l0_platform.h
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*
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* @brief All end user OS/platform/application porting
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*/
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/**
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* @defgroup VL53L0X_platform_group VL53L0 Platform Functions
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* @brief VL53L0 Platform Functions
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* @{
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*/
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/**
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* @struct VL53L0X_Dev_t
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* @brief Generic PAL device type that does link between API and platform abstraction layer
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*
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*/
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typedef struct {
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VL53L0X_DevData_t Data; /*!< embed ST Ewok Dev data as "Data"*/
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/*!< user specific field */
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uint8_t I2cDevAddr; /*!< i2c device address user specific field */
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uint8_t TCA9548A_Device; /*!< Device number on TCA9548A I2C Multiplexer or 255 if TCA9548A not being used */
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uint8_t TCA9548A_Address; /*!< Address of TCA9548A I2C Multiplexer or 255 if TCA9548A not being used */
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} VL53L0X_Dev_t;
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/**
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* @brief Declare the device Handle as a pointer of the structure @a VL53L0X_Dev_t.
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*
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*/
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typedef VL53L0X_Dev_t* VL53L0X_DEV;
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/**
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* @def PALDevDataGet
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* @brief Get ST private structure @a VL53L0X_DevData_t data access
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*
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* @param Dev Device Handle
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* @param field ST structure field name
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* It maybe used and as real data "ref" not just as "get" for sub-structure item
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* like PALDevDataGet(FilterData.field)[i] or PALDevDataGet(FilterData.MeasurementIndex)++
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*/
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#define PALDevDataGet(Dev, field) (Dev->Data.field)
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/**
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* @def PALDevDataSet(Dev, field, data)
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* @brief Set ST private structure @a VL53L0X_DevData_t data field
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* @param Dev Device Handle
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* @param field ST structure field name
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* @param data Data to be set
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*/
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#define PALDevDataSet(Dev, field, data) (Dev->Data.field)=(data)
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/**
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* Initialize PLatform Interface
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* @param Dev Device Handle
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* @return None
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*/
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void VL53L0X_init(VL53L0X_DEV Dev);
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/**
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* @defgroup VL53L0X_registerAccess_group PAL Register Access Functions
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* @brief PAL Register Access Functions
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* @{
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*/
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/**
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* Lock comms interface to serialize all commands to a shared I2C interface for a specific device
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* @param Dev Device Handle
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* @return VL53L0X_ERROR_NONE Success
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* @return "Other error code" See ::VL53L0X_Error
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*/
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VL53L0X_Error VL53L0X_LockSequenceAccess(VL53L0X_DEV Dev);
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/**
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* Unlock comms interface to serialize all commands to a shared I2C interface for a specific device
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* @param Dev Device Handle
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* @return VL53L0X_ERROR_NONE Success
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* @return "Other error code" See ::VL53L0X_Error
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*/
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VL53L0X_Error VL53L0X_UnlockSequenceAccess(VL53L0X_DEV Dev);
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/**
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* Writes the supplied byte buffer to the device
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* @param Dev Device Handle
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* @param index The register index
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* @param pdata Pointer to uint8_t buffer containing the data to be written
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* @param count Number of bytes in the supplied byte buffer
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* @return VL53L0X_ERROR_NONE Success
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* @return "Other error code" See ::VL53L0X_Error
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*/
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VL53L0X_Error VL53L0X_WriteMulti(VL53L0X_DEV Dev, uint8_t index, uint8_t *pdata, uint32_t count);
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/**
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* Reads the requested number of bytes from the device
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* @param Dev Device Handle
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* @param index The register index
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* @param pdata Pointer to the uint8_t buffer to store read data
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* @param count Number of uint8_t's to read
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* @return VL53L0X_ERROR_NONE Success
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* @return "Other error code" See ::VL53L0X_Error
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*/
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VL53L0X_Error VL53L0X_ReadMulti(VL53L0X_DEV Dev, uint8_t index, uint8_t *pdata, uint32_t count);
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/**
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* Write single byte register
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* @param Dev Device Handle
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* @param index The register index
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* @param data 8 bit register data
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* @return VL53L0X_ERROR_NONE Success
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* @return "Other error code" See ::VL53L0X_Error
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*/
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VL53L0X_Error VL53L0X_WrByte(VL53L0X_DEV Dev, uint8_t index, uint8_t data);
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/**
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* Write word register
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* @param Dev Device Handle
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* @param index The register index
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* @param data 16 bit register data
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* @return VL53L0X_ERROR_NONE Success
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* @return "Other error code" See ::VL53L0X_Error
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*/
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VL53L0X_Error VL53L0X_WrWord(VL53L0X_DEV Dev, uint8_t index, uint16_t data);
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/**
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* Write double word (4 byte) register
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* @param Dev Device Handle
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* @param index The register index
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* @param data 32 bit register data
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* @return VL53L0X_ERROR_NONE Success
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* @return "Other error code" See ::VL53L0X_Error
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*/
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VL53L0X_Error VL53L0X_WrDWord(VL53L0X_DEV Dev, uint8_t index, uint32_t data);
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/**
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* Read single byte register
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* @param Dev Device Handle
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* @param index The register index
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* @param data pointer to 8 bit data
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* @return VL53L0X_ERROR_NONE Success
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* @return "Other error code" See ::VL53L0X_Error
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*/
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VL53L0X_Error VL53L0X_RdByte(VL53L0X_DEV Dev, uint8_t index, uint8_t *data);
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/**
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* Read word (2byte) register
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* @param Dev Device Handle
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* @param index The register index
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* @param data pointer to 16 bit data
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* @return VL53L0X_ERROR_NONE Success
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* @return "Other error code" See ::VL53L0X_Error
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*/
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VL53L0X_Error VL53L0X_RdWord(VL53L0X_DEV Dev, uint8_t index, uint16_t *data);
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/**
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* Read dword (4byte) register
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* @param Dev Device Handle
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* @param index The register index
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* @param data pointer to 32 bit data
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* @return VL53L0X_ERROR_NONE Success
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* @return "Other error code" See ::VL53L0X_Error
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*/
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VL53L0X_Error VL53L0X_RdDWord(VL53L0X_DEV Dev, uint8_t index, uint32_t *data);
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/**
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* Threat safe Update (read/modify/write) single byte register
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*
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* Final_reg = (Initial_reg & and_data) |or_data
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*
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* @param Dev Device Handle
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* @param index The register index
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* @param AndData 8 bit and data
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* @param OrData 8 bit or data
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* @return VL53L0X_ERROR_NONE Success
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* @return "Other error code" See ::VL53L0X_Error
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*/
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VL53L0X_Error VL53L0X_UpdateByte(VL53L0X_DEV Dev, uint8_t index, uint8_t AndData, uint8_t OrData);
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/** @} end of VL53L0X_registerAccess_group */
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/**
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* @brief execute delay in all polling API call
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*
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* A typical multi-thread or RTOs implementation is to sleep the task for some 5ms (with 100Hz max rate faster polling is not needed)
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* if nothing specific is need you can define it as an empty/void macro
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* @code
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* #define VL53L0X_PollingDelay(...) (void)0
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* @endcode
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* @param Dev Device Handle
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* @return VL53L0X_ERROR_NONE Success
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* @return "Other error code" See ::VL53L0X_Error
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*/
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VL53L0X_Error VL53L0X_PollingDelay(VL53L0X_DEV Dev); /* usually best implemented as a real function */
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/** @} end of VL53L0X_platform_group */
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#ifdef __cplusplus
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}
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#endif
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#endif /* _VL53L0X_PLATFORM_H_ */
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