Code petit robot
Dependencies: X_NUCLEO_COMMON X_NUCLEO_IHM01A1 mbed
Revision 0:1cb50d31c3b5, committed 2016-03-25
- Comitter:
- julientiron
- Date:
- Fri Mar 25 21:27:03 2016 +0000
- Commit message:
- Code petit robot
Changed in this revision
diff -r 000000000000 -r 1cb50d31c3b5 VL6180X/GenericSensor.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/VL6180X/GenericSensor.h Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,67 @@ +/** + ****************************************************************************** + * @file GenericSensor.h + * @author AST / EST + * @version V0.0.1 + * @date 13-April-2015 + * @brief This file contains the abstract class describing in general + * the interfaces of a generic sensor + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> + * + * 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 STMicroelectronics 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. + * + ****************************************************************************** + */ + +/* Define to prevent from recursive inclusion --------------------------------*/ +#ifndef __GENERIC_SENSOR_CLASS_H +#define __GENERIC_SENSOR_CLASS_H + +/* Includes ------------------------------------------------------------------*/ +#include <stdint.h> + +/* Classes ------------------------------------------------------------------*/ +/** An abstract class for Generic sensors + */ +class GenericSensor +{ + public: + /** + * @brief Initialization of sensor + * @param[out] ptr Pointer to device specific initalization structure + * @return 0 in case of success, an error code otherwise + */ + virtual int Init() = 0; + + /** + * @brief Get ID of sensor + * @param[out] id Pointer to where to store the ID to + * @return 0 in case of success, an error code otherwise + */ + virtual int ReadID() = 0; +}; + +#endif /* __GENERIC_SENSOR_CLASS_H */
diff -r 000000000000 -r 1cb50d31c3b5 VL6180X/LightSensor.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/VL6180X/LightSensor.h Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,60 @@ +/** + ****************************************************************************** + * @file LightSensor.h + * @author AST / EST + * @version V0.0.1 + * @date 13-April-2015 + * @brief This file contains the abstract class describing in general + * the interfaces of an ambient light sensor (ALS) + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> + * + * 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 STMicroelectronics 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. + * + ****************************************************************************** + */ + +/* Define to prevent from recursive inclusion --------------------------------*/ +#ifndef __LIGHT_SENSOR_CLASS_H +#define __LIGHT_SENSOR_CLASS_H + +/* Includes ------------------------------------------------------------------*/ +#include "GenericSensor.h" + +/* Classes ------------------------------------------------------------------*/ +/** An abstract class for ambient light sensors + */ +class LightSensor : public GenericSensor +{ + public: + /** + * @brief Get current light [lux] + * @param[out] piData Pointer to where to store light to + * @return 0 in case of success, an error code otherwise + */ + virtual int GetLight(uint32_t *piData) = 0; +}; + +#endif /* __LIGHT_SENSOR_CLASS_H */
diff -r 000000000000 -r 1cb50d31c3b5 VL6180X/RangeSensor.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/VL6180X/RangeSensor.h Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,60 @@ +/** + ****************************************************************************** + * @file RangeSensor.h + * @author AST / EST + * @version V0.0.1 + * @date 13-April-2015 + * @brief This file contains the abstract class describing in general + * the interfaces of a range sensor + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> + * + * 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 STMicroelectronics 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. + * + ****************************************************************************** + */ + +/* Define to prevent from recursive inclusion --------------------------------*/ +#ifndef __RANGE_SENSOR_CLASS_H +#define __RANGE_SENSOR_CLASS_H + +/* Includes ------------------------------------------------------------------*/ +#include "GenericSensor.h" + +/* Classes ------------------------------------------------------------------*/ +/** An abstract class for range sensors + */ +class RangeSensor : public GenericSensor +{ + public: + /** + * @brief Get current range [mm] + * @param[out] piData Pointer to where to store range to + * @return 0 in case of success, an error code otherwise + */ + virtual int GetRange(int32_t *piData) = 0; +}; + +#endif /* __RANGE_SENSOR_CLASS_H */
diff -r 000000000000 -r 1cb50d31c3b5 VL6180X/vl6180x_cfg.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/VL6180X/vl6180x_cfg.h Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,129 @@ +/******************************************************************************* +Copyright © 2014, STMicroelectronics International N.V. +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * 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. + * Neither the name of STMicroelectronics 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, FITNESS FOR A PARTICULAR PURPOSE, AND +NON-INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS ARE DISCLAIMED. +IN NO EVENT SHALL STMICROELECTRONICS INTERNATIONAL N.V. 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. +********************************************************************************/ +/* + * $Date: 2015-01-08 14:35:34 +0100 (Thu, 08 Jan 2015) $ + * $Revision: 2042 $ + */ + +/** + * @file VL6180x_cfg.h + * + * Proximity and ALS configuration + */ + +#ifndef VL6180x_CFG_H_ +#define VL6180x_CFG_H_ + +/** @defgroup api_config Configuration + * @brief API static configuration + */ + + + +/** @ingroup api_config + * @{*/ + + +/** + * @def VL6180x_UPSCALE_SUPPORT + * @brief Configure up-scale capabilities and default up-scale factor for ranging operations + * + * @li 1 : Fixed scaling by 1 (no up-scaling support) + * @li 2 : Fixed scaling by 2 + * @li 3 : Fixed scaling by 3 + * @li -1 -2 -3 : Run time programmable through @a VL6180x_UpscaleSetScaling(). Default scaling factore is -VL6180x_UPSCALE_SUPPORT \n + */ +//#define VL6180x_UPSCALE_SUPPORT -1 + +/** + * @def VL6180x_ALS_SUPPORT + * @brief Enable ALS support + * + * Set to 0 if ALS is not used in application. This can help reducing code size if it is a concern. + */ +#define VL6180x_ALS_SUPPORT 1 + +/** + * @def VL6180x_HAVE_DMAX_RANGING + * @brief Enable DMax calculation for ranging applications. + * + * When set to 1, __Dmax__ is returned by API typically when @a VL6180x_RangePollMeasurement() high level + * function is called (this is returned in @a VL6180x_RangeData_t structure). + * __Dmax__ is an estimation of the maximum distance (in mm) the product can report a valid distance of a 17% target for + * the current ambient light conditions (__Dmax__ decreases when ambient light increases). __Dmax__ should be used only + * when the product is not able to return a valid distance (no object or object is too far from the ranging sensor). + * Typically, this is done by checking the __errorStatus__ field of the @a VL6180x_RangeData_t structure returned by + * the @a VL6180x_RangePollMeasurement() function. + * You may refer to ::RangeError_u to get full list of supported error codes. + * @warning Dmax is estimated for a 17% grey target. If the real target has a reflectance lower than 17%, report Dmax could be over-estimated + */ +#define VL6180x_HAVE_DMAX_RANGING 1 + +/** + * @def VL6180x_WRAP_AROUND_FILTER_SUPPORT + * @brief Enable wrap around filter (WAF) feature + * + * In specific conditions, when targeting a mirror or a very reflective metal, a __wrap around__ effect can occur internally to the + * ranging product which results in returning a wrong distance (under-estimated). Goal of the WAF is to detect this wrap arround effect + * and to filter it by returning a non-valid distance : __errorStatus__ set to 16 (see ::RangeError_u) + * @warning Wrap-around filter can not be used when device is running in continuous mode + * + * @li 0 : Filter is not supported, no filtering code is included in API + * @li 1 : Filter is supported and active by default + * @li -1 : Filter is supported but is not active by default @a VL6180x_FilterSetState() can turn it on and off at any time + */ +#define VL6180x_WRAP_AROUND_FILTER_SUPPORT 1 + +/** + * @def VL6180x_EXTENDED_RANGE + * @brief Enable extended ranging support + * + * Device that do not formally support extended ranging should only be used with a scaling factor of 1. + * Correct operation with scaling factor other than 1 (>200mm ) is not granted by ST. + */ +//#define VL6180x_EXTENDED_RANGE 0 + +#define EXTENDED_RANGE_50CM 0 +//#define EXTENDED_RANGE_50CM 1 + +#if EXTENDED_RANGE_50CM +#define VL6180x_UPSCALE_SUPPORT -3 +#define VL6180x_EXTENDED_RANGE 1 +#else +#define VL6180x_UPSCALE_SUPPORT -1 +#define VL6180x_EXTENDED_RANGE 0 +#endif + +#if (VL6180x_EXTENDED_RANGE) && (VL6180x_ALS_SUPPORT) +#warning "Als support should be OFF for extended range" +#endif + +#endif +/** @} */ // end of api_config + +/* VL6180x_CFG_H_ */
diff -r 000000000000 -r 1cb50d31c3b5 VL6180X/vl6180x_class.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/VL6180X/vl6180x_class.cpp Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,3634 @@ +/** + ****************************************************************************** + * @file vl6180x_class.cpp + * @author AST / EST + * @version V0.0.1 + * @date 14-April-2015 + * @brief Implementation file for the HTS221 driver class + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> + * + * 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 STMicroelectronics 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. + * + ****************************************************************************** +*/ + +/* Includes */ +#include "vl6180x_class.h" + + +#ifndef VL6180x_RANGE_STATUS_ERRSTRING +#warning "VL6180x_RANGE_STATUS_ERRSTRING not defined ?" +/* TODO you may remove or comment these #warning and keep the default below to keep compatibility + or update your vl6180x_platform.h file */ +/** + * force VL6180x_RANGE_STATUS_ERRSTRING to not supported when not part of any cfg file + */ +#define VL6180x_RANGE_STATUS_ERRSTRING 0 +#endif + +#ifndef VL6180X_SAFE_POLLING_ENTER +#warning "VL6180X_SAFE_POLLING_ENTER not defined, likely old vl6180x_cfg.h file ?" +/* TODO you may remove or comment these #warning and keep the default below to keep compatibility + or update your vl6180x_platform.h file */ +/** + * force VL6180X_SAFE_POLLING_ENTER to off when not in cfg file + */ +#define VL6180X_SAFE_POLLING_ENTER 0 /* off by default as in api 2.0 */ +#endif + +#ifndef VL6180X_LOG_ENABLE +/** + * Force VL6180X_LOG_ENABLE to none as default + */ +#define VL6180X_LOG_ENABLE 0 +#endif + +#ifdef MY_LOG +Serial pc(USBTX, USBRX); +#endif + +#if VL6180x_RANGE_STATUS_ERRSTRING +/**@def VL6180x_HAVE_RANGE_STATUS_ERRSTRING + * @brief is defined when @a #VL6180x_RANGE_STATUS_ERRSTRING is enable + */ +#define VL6180x_HAVE_RANGE_STATUS_ERRSTRING +#endif + + +/** @brief Get API version as "hex integer" 0xMMnnss + */ +#define VL6180x_ApiRevInt ((VL6180x_API_REV_MAJOR<<24)+(VL6180x_API_REV_MINOR<<16)+VL6180x_API_REV_SUB) + +/** Get API version as string for exe "2.1.12" " + */ +#define VL6180x_ApiRevStr VL6180X_STR(VL6180x_API_REV_MAJOR) "." VL6180X_STR(VL6180x_API_REV_MINOR) "." VL6180X_STR(VL6180x_API_REV_SUB) + +/** @defgroup api_init Init functions + * @brief API init functions + * @ingroup api_hl + * @{ + */ + + +/****************** define for i2c configuration *******************************/ + +#define TEMP_BUF_SIZE 32 + +#define IsValidGPIOFunction(x) ((x)==GPIOx_SELECT_GPIO_INTERRUPT_OUTPUT || (x)==GPIOx_SELECT_OFF) +/** + * @brief Clear All interrupt causes (als+range+error) + * + * @param dev The device + * @return 0 On success + */ +#define VL6180x_ClearAllInterrupt(dev) VL6180x_ClearInterrupt(dev, INTERRUPT_CLEAR_ERROR|INTERRUPT_CLEAR_RANGING|INTERRUPT_CLEAR_ALS) +/** + * @brief Clear ALS interrupt + * + * @param dev The device + * @return 0 On success + */ + #define VL6180x_AlsClearInterrupt(dev) VL6180x_ClearInterrupt(dev, INTERRUPT_CLEAR_ALS) +/** + * @brief Clear range interrupt + * + * @param dev The device + * @return 0 On success + */ +#define VL6180x_RangeClearInterrupt(dev) VL6180x_ClearInterrupt(dev, INTERRUPT_CLEAR_RANGING) + +/******************************************************************************/ +/******************************* file api.c ***********************************/ + +#define VL6180x_9to7Conv(x) (x) + +/* TODO when set all "cached" value with "default init" are updated after init from register read back */ +#define REFRESH_CACHED_DATA_AFTER_INIT 1 + + +#define IsValidGPIOFunction(x) ((x)==GPIOx_SELECT_GPIO_INTERRUPT_OUTPUT || (x)==GPIOx_SELECT_OFF) + + +/** default value ECE factor Molecular */ +#define DEF_ECE_FACTOR_M 85 +/** default value ECE factor Denominator */ +#define DEF_ECE_FACTOR_D 100 +/** default value ALS integration time */ +#define DEF_INT_PEFRIOD 100 +/** default value ALS gain */ +#define DEF_ALS_GAIN 1 +/** default value ALS scaler */ +#define DEF_ALS_SCALER 1 +/** default value for DMAX Enbale */ +#define DEF_DMAX_ENABLE 1 +/** default ambient tuning factor %x1000 */ +#define DEF_AMBIENT_TUNING 80 + +#if VL6180x_SINGLE_DEVICE_DRIVER +extern struct VL6180xDevData_t SingleVL6180xDevData; +#define VL6180xDevDataGet(dev, field) (SingleVL6180xDevData.field) +#define VL6180xDevDataSet(dev, field, data) SingleVL6180xDevData.field=(data) +#endif + +#define LUXRES_FIX_PREC 8 +#define GAIN_FIX_PREC 8 /* ! if not sme as LUX_PREC then :( adjust GetLux */ +#define AN_GAIN_MULT (1<<GAIN_FIX_PREC) + + +//int32_t _GetAveTotalTime(VL6180xDev_t dev); +//int VL6180x_RangeSetEarlyConvergenceEestimateThreshold(VL6180xDev_t dev); + +/** + * ScalerLookUP scaling factor-1 to register #RANGE_SCALER lookup + */ +static const uint16_t ScalerLookUP[] ROMABLE_DATA ={ 253, 127, 84}; /* lookup table for scaling->scalar 1x2x 3x */ +/** + * scaling factor to Upper limit look up + */ +static const uint16_t UpperLimitLookUP[] ROMABLE_DATA ={ 185, 370, 580}; /* lookup table for scaling->limit 1x2x3x */ +/** + * Als Code gain to fix point gain lookup + */ +static const uint16_t AlsGainLookUp[8] ROMABLE_DATA = { + (uint16_t)(20.0f * AN_GAIN_MULT), + (uint16_t)(10.0f * AN_GAIN_MULT), + (uint16_t)(5.0f * AN_GAIN_MULT), + (uint16_t)(2.5f * AN_GAIN_MULT), + (uint16_t)(1.67f * AN_GAIN_MULT), + (uint16_t)(1.25f * AN_GAIN_MULT), + (uint16_t)(1.0f * AN_GAIN_MULT), + (uint16_t)(40.0f * AN_GAIN_MULT), +}; + + +#if VL6180x_RANGE_STATUS_ERRSTRING +const char * ROMABLE_DATA VL6180x_RangeStatusErrString[]={ + "No Error", + "VCSEL Continuity Test", + "VCSEL Watchdog Test", + "VCSEL Watchdog", + "PLL1 Lock", + "PLL2 Lock", + "Early Convergence Estimate", + "Max Convergence", + "No Target Ignore", + "Not used 9", + "Not used 10", + "Max Signal To Noise Ratio", + "Raw Ranging Algo Underflow", + "Raw Ranging Algo Overflow", + "Ranging Algo Underflow", + "Ranging Algo Overflow", + + "Filtered by post processing" +}; + +const char * VL6180x_RangeGetStatusErrString(uint8_t RangeErrCode){ + if( RangeErrCode > sizeof(VL6180x_RangeStatusErrString)/sizeof(VL6180x_RangeStatusErrString[0]) ) + return NULL; + return VL6180x_RangeStatusErrString[RangeErrCode]; +} +#endif + +#if VL6180x_UPSCALE_SUPPORT == 1 + #define _GetUpscale(dev, ... ) 1 + #define _SetUpscale(...) -1 + #define DEF_UPSCALE 1 +#elif VL6180x_UPSCALE_SUPPORT == 2 + #define _GetUpscale(dev, ... ) 2 + #define _SetUpscale(...) + #define DEF_UPSCALE 2 +#elif VL6180x_UPSCALE_SUPPORT == 3 + #define _GetUpscale(dev, ... ) 3 + #define _SetUpscale(...) + #define DEF_UPSCALE 3 +#else + #define DEF_UPSCALE (-(VL6180x_UPSCALE_SUPPORT)) + #define _GetUpscale(dev, ... ) VL6180xDevDataGet(dev, UpscaleFactor) + #define _SetUpscale(dev, Scaling ) VL6180xDevDataSet(dev, UpscaleFactor, Scaling) +#endif + + +#if VL6180x_SINGLE_DEVICE_DRIVER +/** + * the unique driver data When single device driver is active + */ +struct VL6180xDevData_t VL6180x_DEV_DATA_ATTR SingleVL6180xDevData={ + .EceFactorM = DEF_ECE_FACTOR_M, + .EceFactorD = DEF_ECE_FACTOR_D, +#ifdef VL6180x_HAVE_UPSCALE_DATA + .UpscaleFactor = DEF_UPSCALE, +#endif +#ifdef VL6180x_HAVE_ALS_DATA + .IntegrationPeriod = DEF_INT_PEFRIOD, + .AlsGainCode = DEF_ALS_GAIN, + .AlsScaler = DEF_ALS_SCALER, +#endif +#ifdef VL6180x_HAVE_DMAX_RANGING + .DMaxEnable = DEF_DMAX_ENABLE, +#endif +}; +#endif /* VL6180x_SINGLE_DEVICE_DRIVER */ + +#define Fix7_2_KCPs(x) ((((uint32_t)(x))*1000)>>7) + +#if VL6180x_WRAP_AROUND_FILTER_SUPPORT +static int _filter_Init(VL6180xDev_t dev); + #define _IsWrapArroundActive(dev) VL6180xDevDataGet(dev,WrapAroundFilterActive) +#else + #define _IsWrapArroundActive(dev) 0 +#endif + + +#if VL6180x_HAVE_DMAX_RANGING + void _DMax_OneTimeInit(VL6180xDev_t dev); +// static int _DMax_InitData(VL6180xDev_t dev); + static int _DMax_Compute(VL6180xDev_t dev, VL6180x_RangeData_t *pRange); + #define _IsDMaxActive(dev) VL6180xDevDataGet(dev,DMaxEnable) +#else + #define _DMax_InitData(...) 0 /* success */ + #define _DMax_OneTimeInit(...) (void)0 + #define _IsDMaxActive(...) 0 +#endif + +//static int VL6180x_RangeStaticInit(VL6180xDev_t dev); +//static int VL6180x_UpscaleStaticInit(VL6180xDev_t dev); + +int VL6180X::VL6180x_WaitDeviceBooted(VL6180xDev_t dev){ + uint8_t FreshOutReset; + int status; + LOG_FUNCTION_START(""); + do{ + status = VL6180x_RdByte(dev,SYSTEM_FRESH_OUT_OF_RESET, &FreshOutReset); + } + while( FreshOutReset!=1 && status==0); + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_InitData(VL6180xDev_t dev){ + int status, dmax_status ; + int8_t offset; + uint8_t FreshOutReset; + uint32_t CalValue; + uint16_t u16; + uint32_t XTalkCompRate_KCps; + + LOG_FUNCTION_START(""); + + VL6180xDevDataSet(dev, EceFactorM , DEF_ECE_FACTOR_M); + VL6180xDevDataSet(dev, EceFactorD , DEF_ECE_FACTOR_D); + +#ifdef VL6180x_HAVE_UPSCALE_DATA + VL6180xDevDataSet(dev, UpscaleFactor , DEF_UPSCALE); +#endif + +#ifdef VL6180x_HAVE_ALS_DATA + VL6180xDevDataSet(dev, IntegrationPeriod, DEF_INT_PEFRIOD); + VL6180xDevDataSet(dev, AlsGainCode, DEF_ALS_GAIN); + VL6180xDevDataSet(dev, AlsScaler, DEF_ALS_SCALER); +#endif + +#ifdef VL6180x_HAVE_WRAP_AROUND_DATA + VL6180xDevDataSet(dev, WrapAroundFilterActive, (VL6180x_WRAP_AROUND_FILTER_SUPPORT >0)); + VL6180xDevDataSet(dev, DMaxEnable, DEF_DMAX_ENABLE); +#endif + + _DMax_OneTimeInit(dev); + do{ + + /* backup offset initial value from nvm these must be done prior any over call that use offset */ + status = VL6180X::VL6180x_RdByte(dev,SYSRANGE_PART_TO_PART_RANGE_OFFSET, (uint8_t*)&offset); + if( status ){ + VL6180x_ErrLog("SYSRANGE_PART_TO_PART_RANGE_OFFSET rd fail"); + break; + } + VL6180xDevDataSet(dev, Part2PartOffsetNVM, offset); + + status=VL6180x_RdDWord( dev, SYSRANGE_RANGE_IGNORE_THRESHOLD, &CalValue); + if( status ){ + VL6180x_ErrLog("Part2PartAmbNVM rd fail"); + break; + } + if( (CalValue&0xFFFF0000) == 0 ){ + CalValue=0x00CE03F8; + } + VL6180xDevDataSet(dev, Part2PartAmbNVM, CalValue); + + status = VL6180x_RdWord(dev, SYSRANGE_CROSSTALK_COMPENSATION_RATE ,&u16); + if( status){ + VL6180x_ErrLog("SYSRANGE_CROSSTALK_COMPENSATION_RATE rd fail "); + break; + } + XTalkCompRate_KCps = Fix7_2_KCPs(u16); + VL6180xDevDataSet(dev, XTalkCompRate_KCps , XTalkCompRate_KCps ); + + dmax_status = _DMax_InitData(dev); + if( dmax_status < 0 ){ + VL6180x_ErrLog("DMax init failure"); + break; + } + + /* Read or wait for fresh out of reset */ + status = VL6180x_RdByte(dev,SYSTEM_FRESH_OUT_OF_RESET, &FreshOutReset); + if( status ) { + VL6180x_ErrLog("SYSTEM_FRESH_OUT_OF_RESET rd fail"); + break; + } + if( FreshOutReset!= 1 || dmax_status ) + status = CALIBRATION_WARNING; + + } + while(0); + + LOG_FUNCTION_END(status); + return status; +} + +int8_t VL6180X::VL6180x_GetOffsetCalibrationData(VL6180xDev_t dev) +{ + int8_t offset; + LOG_FUNCTION_START(""); + offset = VL6180xDevDataGet(dev, Part2PartOffsetNVM); + LOG_FUNCTION_END( offset ); + return offset; +} + +void VL6180X::VL6180x_SetOffsetCalibrationData(VL6180xDev_t dev, int8_t offset) +{ + LOG_FUNCTION_START("%d", offset); + VL6180xDevDataSet(dev, Part2PartOffsetNVM, offset); + LOG_FUNCTION_END(0); +} + +int VL6180X::VL6180x_SetXTalkCompensationRate(VL6180xDev_t dev, FixPoint97_t Rate) +{ + int status; + LOG_FUNCTION_START("%d", Rate); + status = VL6180x_WrWord(dev, SYSRANGE_CROSSTALK_COMPENSATION_RATE, Rate); + if( status ==0 ){ + uint32_t XTalkCompRate_KCps; + XTalkCompRate_KCps = Fix7_2_KCPs(Rate); + VL6180xDevDataSet(dev, XTalkCompRate_KCps , XTalkCompRate_KCps ); + /* update dmax whenever xtalk rate changes */ + status = _DMax_InitData(dev); + } + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_SetI2CAddress(VL6180xDev_t dev, uint8_t NewAddress){ + int status; + LOG_FUNCTION_START(""); + + status = VL6180x_WrByte(dev, I2C_SLAVE_DEVICE_ADDRESS, NewAddress); + if( status ){ + VL6180x_ErrLog("new i2c addr Wr fail"); + } + LOG_FUNCTION_END(status); + return status; +} + + +uint16_t VL6180X::VL6180x_GetUpperLimit(VL6180xDev_t dev) { + uint16_t limit; + int scaling; + + LOG_FUNCTION_START(""); + + scaling = _GetUpscale(dev); + /* FIXME we do assume here _GetUpscale is valid if user call us prior to init we may overflow the LUT mem area */ + limit = UpperLimitLookUP[scaling - 1]; + + LOG_FUNCTION_END((int )limit); + return limit; +} + + + +int VL6180X::VL6180x_StaticInit(VL6180xDev_t dev){ + int status=0, init_status; + LOG_FUNCTION_START(""); + + /* TODO doc When using configurable scaling but using 1x as start condition + * load tunning upscale or not ??? */ + if( _GetUpscale(dev) == 1 && !(VL6180x_UPSCALE_SUPPORT<0)) + init_status=VL6180x_RangeStaticInit(dev); + else + init_status=VL6180x_UpscaleStaticInit(dev); + + if( init_status <0 ){ + VL6180x_ErrLog("StaticInit fail"); + goto error; + } + else if(init_status > 0){ + VL6180x_ErrLog("StaticInit warning"); + } + +#if REFRESH_CACHED_DATA_AFTER_INIT + /* update cached value after tuning applied */ + do{ +#ifdef VL6180x_HAVE_ALS_DATA + uint8_t data; + status= VL6180x_RdByte(dev, FW_ALS_RESULT_SCALER, &data); + if( status ) break; + VL6180xDevDataSet(dev, AlsScaler, data); + + status= VL6180x_RdByte(dev, SYSALS_ANALOGUE_GAIN, &data); + if( status ) break; + VL6180x_AlsSetAnalogueGain(dev, data); +#endif + } + while(0); +#endif /* REFRESH_CACHED_DATA_AFTER_INIT */ + if( status < 0 ){ + VL6180x_ErrLog("StaticInit fail"); + } + if( !status && init_status){ + status = init_status; + } +error: + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_SetGroupParamHold(VL6180xDev_t dev, int Hold) +{ + int status; + uint8_t value; + + LOG_FUNCTION_START("%d", Hold); + if( Hold ) + value = 1; + else + value = 0; + status = VL6180x_WrByte(dev, SYSTEM_GROUPED_PARAMETER_HOLD, value); + + LOG_FUNCTION_END(status); + return status; + +} + +int VL6180X::VL6180x_Prepare(VL6180xDev_t dev) +{ + int status; + LOG_FUNCTION_START(""); + + do{ + status=VL6180x_StaticInit(dev); + if( status<0) break; + + /* set range InterruptMode to new sample */ + status=VL6180x_RangeConfigInterrupt(dev, CONFIG_GPIO_INTERRUPT_DISABLED ); + if( status) + break; + + /* set default threshold */ + status=VL6180x_RangeSetRawThresholds(dev, 10, 200); + if( status ){ + VL6180x_ErrLog("VL6180x_RangeSetRawThresholds fail"); + break; + } +#if VL6180x_ALS_SUPPORT + status =VL6180x_AlsSetIntegrationPeriod(dev, 100); + if( status ) break; + status = VL6180x_AlsSetInterMeasurementPeriod(dev, 200); + if( status ) break; + status = VL6180x_AlsSetAnalogueGain(dev, 0); + if( status ) break; + status = VL6180x_AlsSetThresholds(dev, 0, 0xFFFF); + if( status ) break; + /* set Als InterruptMode to new sample */ + status=VL6180x_AlsConfigInterrupt(dev, CONFIG_GPIO_INTERRUPT_DISABLED); + if( status ) { + VL6180x_ErrLog("VL6180x_AlsConfigInterrupt fail"); + break; + } +#endif +#if VL6180x_WRAP_AROUND_FILTER_SUPPORT + _filter_Init(dev); +#endif + /* make sure to reset any left previous condition that can hangs first poll */ + status=VL6180x_ClearAllInterrupt(dev); + } + while(0); + LOG_FUNCTION_END(status); + + return status; +} + +#if VL6180x_ALS_SUPPORT +int VL6180X::VL6180x_AlsGetLux(VL6180xDev_t dev, lux_t *pLux) +{ + int status; + uint16_t RawAls; + uint32_t luxValue = 0; + uint32_t IntPeriod; + uint32_t AlsAnGain; + uint32_t GainFix; + uint32_t AlsScaler; + +#if LUXRES_FIX_PREC != GAIN_FIX_PREC +#error "LUXRES_FIX_PREC != GAIN_FIX_PREC review these code to be correct" +#endif + const uint32_t LuxResxIntIme =(uint32_t)(0.56f* DEF_INT_PEFRIOD *(1<<LUXRES_FIX_PREC)); + + LOG_FUNCTION_START("%p", pLux); + + status = VL6180x_RdWord( dev, RESULT_ALS_VAL, &RawAls); + if( !status){ + /* wer are yet here at no fix point */ + IntPeriod=VL6180xDevDataGet(dev, IntegrationPeriod); + AlsScaler=VL6180xDevDataGet(dev, AlsScaler); + IntPeriod++; /* what stored is real time ms -1 and it can be 0 for or 0 or 1ms */ + luxValue = (uint32_t)RawAls * LuxResxIntIme; /* max # 16+8bits + 6bit (0.56*100) */ + luxValue /= IntPeriod; /* max # 16+8bits + 6bit 16+8+1 to 9 bit */ + /* between 29 - 21 bit */ + AlsAnGain = VL6180xDevDataGet(dev, AlsGainCode); + GainFix = AlsGainLookUp[AlsAnGain]; + luxValue = luxValue / (AlsScaler * GainFix); + *pLux=luxValue; + } + + LOG_FUNCTION_END_FMT(status, "%x",(int)*pLux); + return status; +} + +int VL6180X::VL6180x_AlsGetMeasurement(VL6180xDev_t dev, VL6180x_AlsData_t *pAlsData) +{ + int status; + uint8_t ErrStatus; + + LOG_FUNCTION_START("%p", pAlsData); + + status = VL6180x_AlsGetLux(dev, &pAlsData->lux); + if( !status ){ + status = VL6180x_RdByte(dev, RESULT_ALS_STATUS, & ErrStatus); + pAlsData->errorStatus = ErrStatus>>4; + } + LOG_FUNCTION_END_FMT(status,"%d %d", (int)pAlsData->lux, (int)pAlsData->errorStatus); + + return status; +} + + +int VL6180X::VL6180x_AlsPollMeasurement(VL6180xDev_t dev, VL6180x_AlsData_t *pAlsData) { + int status; + int ClrStatus; + uint8_t IntStatus; + + LOG_FUNCTION_START("%p", pAlsData); +#if VL6180X_SAFE_POLLING_ENTER + /* if device get stopped with left interrupt uncleared , it is required to clear them now or poll for new condition will never occur*/ + status=VL6180x_AlsClearInterrupt(dev); + if(status){ + VL6180x_ErrLog("VL6180x_AlsClearInterrupt fail"); + goto over; + } +#endif + + status=VL6180x_AlsSetSystemMode(dev, MODE_START_STOP|MODE_SINGLESHOT); + if( status){ + VL6180x_ErrLog("VL6180x_AlsSetSystemMode fail"); + goto over; + } + + /* poll for new sample ready */ + while (1 ) { + status = VL6180x_AlsGetInterruptStatus(dev, &IntStatus); + if (status) { + break; + } + if (IntStatus == RES_INT_STAT_GPIO_NEW_SAMPLE_READY) { + break; /* break on new data (status is 0) */ + } + wait_ms(10); + }; + + if (!status) { + status = VL6180x_AlsGetMeasurement(dev, pAlsData); + } + + ClrStatus = VL6180x_AlsClearInterrupt(dev); + if (ClrStatus) { + VL6180x_ErrLog("VL6180x_AlsClearInterrupt fail"); + if (!status) { + status = ClrStatus; /* leave previous if already on error */ + } + } +over: + LOG_FUNCTION_END(status); + + return status; +} + +int VL6180X::VL6180x_AlsGetInterruptStatus(VL6180xDev_t dev, uint8_t *pIntStatus) { + int status; + uint8_t IntStatus; + LOG_FUNCTION_START("%p", pIntStatus); + + status = VL6180x_RdByte(dev, RESULT_INTERRUPT_STATUS_GPIO, &IntStatus); + *pIntStatus= (IntStatus>>3)&0x07; + + LOG_FUNCTION_END_FMT(status, "%d", (int)*pIntStatus); + return status; +} + +int VL6180X::VL6180x_AlsWaitDeviceReady(VL6180xDev_t dev, int MaxLoop ){ + int status; + int n; + uint8_t u8; + LOG_FUNCTION_START("%d", (int)MaxLoop); + if( MaxLoop<1){ + status=INVALID_PARAMS; + } + else{ + for( n=0; n < MaxLoop ; n++){ + status=VL6180x_RdByte(dev, RESULT_ALS_STATUS, &u8); + if( status) + break; + u8 = u8 & ALS_DEVICE_READY_MASK; + if( u8 ) + break; + + } + if( !status && !u8 ){ + status = TIME_OUT; + } + } + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_AlsSetSystemMode(VL6180xDev_t dev, uint8_t mode) +{ + int status; + LOG_FUNCTION_START("%d", (int)mode); + /* FIXME if we are called back to back real fast we are not checking + * if previous mode "set" got absorbed => bit 0 must be 0 so that wr 1 work */ + if( mode <= 3){ + status=VL6180x_WrByte(dev, SYSALS_START, mode); + } + else{ + status = INVALID_PARAMS; + } + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_AlsConfigInterrupt(VL6180xDev_t dev, uint8_t ConfigGpioInt) +{ + int status; + + if( ConfigGpioInt<= CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY){ + status = VL6180x_UpdateByte(dev, SYSTEM_INTERRUPT_CONFIG_GPIO, (uint8_t)(~CONFIG_GPIO_ALS_MASK), (ConfigGpioInt<<3)); + } + else{ + VL6180x_ErrLog("Invalid config mode param %d", (int)ConfigGpioInt); + status = INVALID_PARAMS; + } + LOG_FUNCTION_END(status); + return status; +} + + + +int VL6180X::VL6180x_AlsSetThresholds(VL6180xDev_t dev, uint16_t low, uint16_t high) { + int status; + + LOG_FUNCTION_START("%d %d", (int )low, (int)high); + + status = VL6180x_WrWord(dev, SYSALS_THRESH_LOW, low); + if(!status ){ + status = VL6180x_WrWord(dev, SYSALS_THRESH_HIGH, high); + } + + LOG_FUNCTION_END(status) ; + return status; +} + + +int VL6180X::VL6180x_AlsSetAnalogueGain(VL6180xDev_t dev, uint8_t gain) { + int status; + uint8_t GainTotal; + + LOG_FUNCTION_START("%d", (int )gain); + gain&=~0x40; + if (gain > 7) { + gain = 7; + } + GainTotal = gain|0x40; + + status = VL6180x_WrByte(dev, SYSALS_ANALOGUE_GAIN, GainTotal); + if( !status){ + VL6180xDevDataSet(dev, AlsGainCode, gain); + } + + LOG_FUNCTION_END_FMT(status, "%d %d", (int ) gain, (int )GainTotal); + return status; +} + +int VL6180X::VL6180x_AlsSetInterMeasurementPeriod(VL6180xDev_t dev, uint16_t intermeasurement_period_ms) +{ + int status; + + LOG_FUNCTION_START("%d",(int)intermeasurement_period_ms); + /* clipping: range is 0-2550ms */ + if (intermeasurement_period_ms >= 255 *10) + intermeasurement_period_ms = 255 *10; + status=VL6180x_WrByte(dev, SYSALS_INTERMEASUREMENT_PERIOD, (uint8_t)(intermeasurement_period_ms/10)); + + LOG_FUNCTION_END_FMT(status, "%d", (int) intermeasurement_period_ms); + return status; +} + + +int VL6180X::VL6180x_AlsSetIntegrationPeriod(VL6180xDev_t dev, uint16_t period_ms) +{ + int status; + uint16_t SetIntegrationPeriod; + + LOG_FUNCTION_START("%d", (int)period_ms); + + if( period_ms>=1 ) + SetIntegrationPeriod = period_ms - 1; + else + SetIntegrationPeriod = period_ms; + + if (SetIntegrationPeriod > 464) { + SetIntegrationPeriod = 464; + } + else if (SetIntegrationPeriod == 255) { + SetIntegrationPeriod++; /* can't write 255 since this causes the device to lock out.*/ + } + + status =VL6180x_WrWord(dev, SYSALS_INTEGRATION_PERIOD, SetIntegrationPeriod); + if( !status ){ + VL6180xDevDataSet(dev, IntegrationPeriod, SetIntegrationPeriod) ; + } + LOG_FUNCTION_END_FMT(status, "%d", (int)SetIntegrationPeriod); + return status; +} + +#endif /* HAVE_ALS_SUPPORT */ + + +int VL6180X::VL6180x_RangePollMeasurement(VL6180xDev_t dev, VL6180x_RangeData_t *pRangeData) +{ + int status; + int ClrStatus; + IntrStatus_t IntStatus; + + LOG_FUNCTION_START(""); + /* start single range measurement */ + + +#if VL6180X_SAFE_POLLING_ENTER + /* if device get stopped with left interrupt uncleared , it is required to clear them now or poll for new condition will never occur*/ + status=VL6180x_RangeClearInterrupt(dev); + if(status){ + VL6180x_ErrLog("VL6180x_RangeClearInterrupt fail"); + goto done; + } +#endif + /* //![single_shot_snipet] */ + status=VL6180x_RangeSetSystemMode(dev, MODE_START_STOP|MODE_SINGLESHOT); + if( status ){ + VL6180x_ErrLog("VL6180x_RangeSetSystemMode fail"); + goto done; + } + + /* poll for new sample ready */ + while(1 ){ + status=VL6180x_RangeGetInterruptStatus(dev, &IntStatus.val); + if( status ){ + break; + } + if( IntStatus.status.Error !=0 ){ + VL6180x_ErrLog("GPIO int Error report %d",(int)IntStatus.val); + status = RANGE_ERROR; + break; + } + else + if( IntStatus.status.Range == RES_INT_STAT_GPIO_NEW_SAMPLE_READY){ + break; + } + wait_ms(10); + } + /* //![single_shot_snipet] */ + + if ( !status ){ + status = VL6180x_RangeGetMeasurement(dev, pRangeData); + } + + /* clear range interrupt source */ + ClrStatus = VL6180x_RangeClearInterrupt(dev); + if( ClrStatus ){ + VL6180x_ErrLog("VL6180x_RangeClearInterrupt fail"); + /* leave initial status if already in error */ + if( !status ){ + status=ClrStatus; + } + } +done: + LOG_FUNCTION_END(status); + return status; +} + + + +int VL6180X::VL6180x_RangeGetMeasurement(VL6180xDev_t dev, VL6180x_RangeData_t *pRangeData) +{ + int status; + uint16_t RawRate; + uint8_t RawStatus; + + LOG_FUNCTION_START(""); + + status = VL6180x_RangeGetResult(dev, &pRangeData->range_mm); + if( !status ){ + status = VL6180x_RdWord(dev,RESULT_RANGE_SIGNAL_RATE, &RawRate ); + if( !status ){ + pRangeData->signalRate_mcps = VL6180x_9to7Conv(RawRate); + status = VL6180x_RdByte(dev, RESULT_RANGE_STATUS, &RawStatus); + if( !status ){ + pRangeData->errorStatus = RawStatus >>4; + } + else{ + VL6180x_ErrLog("Rd RESULT_RANGE_STATUS fail"); + } + #if VL6180x_WRAP_AROUND_FILTER_SUPPORT || VL6180x_HAVE_DMAX_RANGING + status = _GetRateResult(dev, pRangeData); + if( status ) + goto error; + #endif + #if VL6180x_WRAP_AROUND_FILTER_SUPPORT + /* if enabled run filter */ + if( _IsWrapArroundActive(dev) ){ + status=_filter_GetResult(dev, pRangeData); + if( !status){ + /* patch the range status and measure if it is filtered */ + if( pRangeData->range_mm != pRangeData->FilteredData.range_mm) { + pRangeData->errorStatus=RangingFiltered; + pRangeData->range_mm = pRangeData->FilteredData.range_mm; + } + } + } + #endif + +#if VL6180x_HAVE_DMAX_RANGING + if(_IsDMaxActive(dev) ){ + _DMax_Compute(dev, pRangeData); + } +#endif + } + else{ + VL6180x_ErrLog("Rd RESULT_RANGE_SIGNAL_RATE fail"); + } + } + else{ + VL6180x_ErrLog("VL6180x_GetRangeResult fail"); + } +error: + LOG_FUNCTION_END_FMT(status, "%d %d %d", (int)pRangeData->range_mm, (int)pRangeData->signalRate_mcps, (int)pRangeData->errorStatus) ; + return status; +} + + +int VL6180X::VL6180x_RangeGetMeasurementIfReady(VL6180xDev_t dev, VL6180x_RangeData_t *pRangeData) +{ + int status; + IntrStatus_t IntStatus; + + LOG_FUNCTION_START(); + + status = VL6180x_RangeGetInterruptStatus(dev, &IntStatus.val); + if( status ==0 ){ + if( IntStatus.status.Error !=0 ){ + VL6180x_ErrLog("GPIO int Error report %d",(int)IntStatus.val); + status = RANGE_ERROR; + } + else + if( IntStatus.status.Range == RES_INT_STAT_GPIO_NEW_SAMPLE_READY){ + status = VL6180x_RangeGetMeasurement(dev,pRangeData ); + if( status == 0){ + /* clear range interrupt source */ + status = VL6180x_RangeClearInterrupt(dev); + if( status ){ + VL6180x_ErrLog("VL6180x_RangeClearInterrupt fail"); + } + } + } + else{ + status = NOT_READY; + } + } + else{ + VL6180x_ErrLog("fail to get interrupt status"); + } + LOG_FUNCTION_END(status) ; + return status; +} + +int VL6180X::VL6180x_FilterSetState(VL6180xDev_t dev, int state){ + int status; + LOG_FUNCTION_START("%d", state); +#if VL6180x_WRAP_AROUND_FILTER_SUPPORT + VL6180xDevDataSet(dev,WrapAroundFilterActive, state); + status = 0; +#else + status = NOT_SUPPORTED; +#endif + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_FilterGetState(VL6180xDev_t dev){ + int status; + LOG_FUNCTION_START(""); +#if VL6180x_WRAP_AROUND_FILTER_SUPPORT + status = VL6180xDevDataGet(dev,WrapAroundFilterActive); +#else + status = 0; +#endif + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_RangeGetResult(VL6180xDev_t dev, int32_t *pRange_mm) { + int status; + uint8_t RawRange; + int32_t Upscale; + + LOG_FUNCTION_START("%p",pRange_mm); + + status = VL6180x_RdByte(dev, RESULT_RANGE_VAL, &RawRange); + if( !status ){ + Upscale = _GetUpscale(dev); + *pRange_mm= Upscale*(int32_t)RawRange; + } + LOG_FUNCTION_END_FMT(status, "%d", (int)*pRange_mm); + return status; +} + +int VL6180X::VL6180x_RangeSetRawThresholds(VL6180xDev_t dev, uint8_t low, uint8_t high) +{ + int status; + LOG_FUNCTION_START("%d %d", (int) low, (int)high); + /* TODO we can optimize here grouping high/low in a word but that's cpu endianness dependent */ + status=VL6180x_WrByte(dev, SYSRANGE_THRESH_HIGH,high); + if( !status){ + status=VL6180x_WrByte(dev, SYSRANGE_THRESH_LOW, low); + } + + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_RangeSetThresholds(VL6180xDev_t dev, uint16_t low, uint16_t high, int UseSafeParamHold) +{ + int status; + int scale; + LOG_FUNCTION_START("%d %d", (int) low, (int)high); + scale=_GetUpscale(dev,UpscaleFactor); + if( low>scale*255 || high >scale*255){ + status = INVALID_PARAMS; + } + else{ + do{ + if( UseSafeParamHold ){ + status=VL6180x_SetGroupParamHold(dev, 1); + if( status ) + break; + } + status=VL6180x_RangeSetRawThresholds(dev, (uint8_t)(low/scale), (uint8_t)(high/scale)); + if( status ){ + VL6180x_ErrLog("VL6180x_RangeSetRawThresholds fail"); + } + if( UseSafeParamHold ){ + int HoldStatus; + /* tryt to unset param hold vene if previous fail */ + HoldStatus=VL6180x_SetGroupParamHold(dev, 0); + if( !status) + status=HoldStatus; + } + } + while(0); + } + + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_RangeGetThresholds(VL6180xDev_t dev, uint16_t *low, uint16_t *high) +{ + int status; + uint8_t RawLow, RawHigh; + int scale; + + LOG_FUNCTION_START("%p %p", low , high); + + scale=_GetUpscale(dev,UpscaleFactor); + do{ + if( high != NULL ){ + status=VL6180x_RdByte(dev, SYSRANGE_THRESH_HIGH,&RawHigh); + if( status ){ + VL6180x_ErrLog("rd SYSRANGE_THRESH_HIGH fail"); + break; + } + *high=(uint16_t)RawHigh*scale; + } + if( low != NULL ) { + status=VL6180x_RdByte(dev, SYSRANGE_THRESH_LOW, &RawLow); + if( status ){ + VL6180x_ErrLog("rd SYSRANGE_THRESH_LOW fail"); + break; + } + *low=(uint16_t)RawLow*scale; + } + } + while(0); + LOG_FUNCTION_END_FMT(status, "%d %d",(int)*low ,(int)*high); + return status; +} + + +int VL6180X::VL6180x_RangeGetInterruptStatus(VL6180xDev_t dev, uint8_t *pIntStatus) { + int status; + uint8_t IntStatus; + LOG_FUNCTION_START("%p", pIntStatus); + /* FIXME we are grouping "error" with over status the user must check implicitly for it + * not just new sample or over status , that will nevr show up in case of error*/ + status = VL6180x_RdByte(dev, RESULT_INTERRUPT_STATUS_GPIO, &IntStatus); + *pIntStatus= IntStatus&0xC7; + + LOG_FUNCTION_END_FMT(status, "%d", (int)*pIntStatus); + return status; +} + + +int VL6180X::VL6180x_GetInterruptStatus(VL6180xDev_t dev, uint8_t *IntStatus) +{ + int status; + LOG_FUNCTION_START("%p" , IntStatus); + status = VL6180x_RdByte(dev, RESULT_INTERRUPT_STATUS_GPIO, IntStatus); + LOG_FUNCTION_END_FMT(status, "%d", (int)*IntStatus); + return status; +} + +int VL6180X::VL6180x_ClearInterrupt(VL6180xDev_t dev, uint8_t IntClear ) +{ + int status; + LOG_FUNCTION_START("%d" ,(int)IntClear); + if( IntClear <= 7 ){ + status=VL6180x_WrByte( dev, SYSTEM_INTERRUPT_CLEAR, IntClear); + } + else{ + status = INVALID_PARAMS; + } + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_RangeStaticInit(VL6180xDev_t dev) +{ + int status; + LOG_FUNCTION_START(""); + + /* REGISTER_TUNING_SR03_270514_CustomerView.txt */ + VL6180x_WrByte( dev, 0x0207, 0x01); + VL6180x_WrByte( dev, 0x0208, 0x01); + VL6180x_WrByte( dev, 0x0096, 0x00); + VL6180x_WrByte( dev, 0x0097, 0xfd); + VL6180x_WrByte( dev, 0x00e3, 0x00); + VL6180x_WrByte( dev, 0x00e4, 0x04); + VL6180x_WrByte( dev, 0x00e5, 0x02); + VL6180x_WrByte( dev, 0x00e6, 0x01); + VL6180x_WrByte( dev, 0x00e7, 0x03); + VL6180x_WrByte( dev, 0x00f5, 0x02); + VL6180x_WrByte( dev, 0x00d9, 0x05); + VL6180x_WrByte( dev, 0x00db, 0xce); + VL6180x_WrByte( dev, 0x00dc, 0x03); + VL6180x_WrByte( dev, 0x00dd, 0xf8); + VL6180x_WrByte( dev, 0x009f, 0x00); + VL6180x_WrByte( dev, 0x00a3, 0x3c); + VL6180x_WrByte( dev, 0x00b7, 0x00); + VL6180x_WrByte( dev, 0x00bb, 0x3c); + VL6180x_WrByte( dev, 0x00b2, 0x09); + VL6180x_WrByte( dev, 0x00ca, 0x09); + VL6180x_WrByte( dev, 0x0198, 0x01); + VL6180x_WrByte( dev, 0x01b0, 0x17); + VL6180x_WrByte( dev, 0x01ad, 0x00); + VL6180x_WrByte( dev, 0x00ff, 0x05); + VL6180x_WrByte( dev, 0x0100, 0x05); + VL6180x_WrByte( dev, 0x0199, 0x05); + VL6180x_WrByte( dev, 0x01a6, 0x1b); + VL6180x_WrByte( dev, 0x01ac, 0x3e); + VL6180x_WrByte( dev, 0x01a7, 0x1f); + VL6180x_WrByte( dev, 0x0030, 0x00); + + /* Recommended : Public registers - See data sheet for more detail */ + VL6180x_WrByte( dev, SYSTEM_MODE_GPIO1, 0x10); /* Enables polling for New Sample ready when measurement completes */ + VL6180x_WrByte( dev, READOUT_AVERAGING_SAMPLE_PERIOD, 0x30); /* Set the averaging sample period (compromise between lower noise and increased execution time) */ + VL6180x_WrByte( dev, SYSALS_ANALOGUE_GAIN, 0x46); /* Sets the light and dark gain (upper nibble). Dark gain should not be changed.*/ + VL6180x_WrByte( dev, SYSRANGE_VHV_REPEAT_RATE, 0xFF); /* sets the # of range measurements after which auto calibration of system is performed */ + VL6180x_WrByte( dev, SYSALS_INTEGRATION_PERIOD, 0x63); /* Set ALS integration time to 100ms */ + VL6180x_WrByte( dev, SYSRANGE_VHV_RECALIBRATE, 0x01); /* perform a single temperature calibration of the ranging sensor */ + + /* Optional: Public registers - See data sheet for more detail */ + VL6180x_WrByte( dev, SYSRANGE_INTERMEASUREMENT_PERIOD, 0x09); /* Set default ranging inter-measurement period to 100ms */ + VL6180x_WrByte( dev, SYSALS_INTERMEASUREMENT_PERIOD, 0x31); /* Set default ALS inter-measurement period to 500ms */ + VL6180x_WrByte( dev, SYSTEM_INTERRUPT_CONFIG_GPIO, 0x24); /* Configures interrupt on New sample ready */ + + + status=VL6180x_RangeSetMaxConvergenceTime(dev, 50); /* Calculate ece value on initialization (use max conv) */ + LOG_FUNCTION_END(status); + + return status; +} + +#if VL6180x_UPSCALE_SUPPORT != 1 + +int VL6180X::_UpscaleInitPatch0(VL6180xDev_t dev){ + int status; + uint32_t CalValue=0; + CalValue= VL6180xDevDataGet(dev, Part2PartAmbNVM); + status=VL6180x_WrDWord( dev, 0xDA, CalValue); + return status; +} + +/* only include up-scaling register setting when up-scale support is configured in */ +int VL6180X::VL6180x_UpscaleRegInit(VL6180xDev_t dev) +{ + /* apply REGISTER_TUNING_ER02_100614_CustomerView.txt */ + VL6180x_WrByte( dev, 0x0207, 0x01); + VL6180x_WrByte( dev, 0x0208, 0x01); + VL6180x_WrByte( dev, 0x0096, 0x00); + VL6180x_WrByte( dev, 0x0097, 0x54); + VL6180x_WrByte( dev, 0x00e3, 0x00); + VL6180x_WrByte( dev, 0x00e4, 0x04); + VL6180x_WrByte( dev, 0x00e5, 0x02); + VL6180x_WrByte( dev, 0x00e6, 0x01); + VL6180x_WrByte( dev, 0x00e7, 0x03); + VL6180x_WrByte( dev, 0x00f5, 0x02); + VL6180x_WrByte( dev, 0x00d9, 0x05); + + _UpscaleInitPatch0(dev); + + VL6180x_WrByte( dev, 0x009f, 0x00); + VL6180x_WrByte( dev, 0x00a3, 0x28); + VL6180x_WrByte( dev, 0x00b7, 0x00); + VL6180x_WrByte( dev, 0x00bb, 0x28); + VL6180x_WrByte( dev, 0x00b2, 0x09); + VL6180x_WrByte( dev, 0x00ca, 0x09); + VL6180x_WrByte( dev, 0x0198, 0x01); + VL6180x_WrByte( dev, 0x01b0, 0x17); + VL6180x_WrByte( dev, 0x01ad, 0x00); + VL6180x_WrByte( dev, 0x00ff, 0x05); + VL6180x_WrByte( dev, 0x0100, 0x05); + VL6180x_WrByte( dev, 0x0199, 0x05); + VL6180x_WrByte( dev, 0x01a6, 0x1b); + VL6180x_WrByte( dev, 0x01ac, 0x3e); + VL6180x_WrByte( dev, 0x01a7, 0x1f); + VL6180x_WrByte( dev, 0x0030, 0x00); + VL6180x_WrByte( dev, SYSTEM_MODE_GPIO1, 0x10); + VL6180x_WrByte( dev, READOUT_AVERAGING_SAMPLE_PERIOD, 0x30); + VL6180x_WrByte( dev, SYSALS_ANALOGUE_GAIN, 0x46); + VL6180x_WrByte( dev, SYSRANGE_VHV_REPEAT_RATE, 0xFF); + VL6180x_WrByte( dev, SYSALS_INTEGRATION_PERIOD, 0x63); + VL6180x_WrByte( dev, SYSRANGE_VHV_RECALIBRATE, 0x01); + VL6180x_WrByte( dev, SYSRANGE_MAX_AMBIENT_LEVEL_MULT, 0xff); + VL6180x_WrByte( dev, SYSRANGE_INTERMEASUREMENT_PERIOD, 0x09); + VL6180x_WrByte( dev, SYSALS_INTERMEASUREMENT_PERIOD, 0x31); + VL6180x_WrByte( dev, SYSTEM_INTERRUPT_CONFIG_GPIO, 0x24); +#if VL6180x_EXTENDED_RANGE + VL6180x_RangeSetMaxConvergenceTime(dev, 63); +#else + VL6180x_RangeSetMaxConvergenceTime(dev, 50); +#endif + return 0; +} +#else +#define VL6180x_UpscaleRegInit(...) -1 +#endif + +int VL6180X::VL6180x_UpscaleSetScaling(VL6180xDev_t dev, uint8_t scaling) +{ + int status; + uint16_t Scaler; + int8_t Offset; + + LOG_FUNCTION_START("%d",(int) scaling); + +#ifdef VL6180x_HAVE_UPSCALE_DATA + #define min_scaling 1 + #define max_scaling sizeof(ScalerLookUP)/sizeof(ScalerLookUP[0]) +#else + /* we are in fixed config so only allow configured factor */ + #define min_scaling VL6180x_UPSCALE_SUPPORT + #define max_scaling VL6180x_UPSCALE_SUPPORT +#endif + + if( scaling>=min_scaling && scaling<= max_scaling ){ + + Scaler = ScalerLookUP[scaling-1]; + status = VL6180x_WrWord(dev, RANGE_SCALER, Scaler); + _SetUpscale(dev, scaling ); + + /* Apply scaling on part-2-part offset */ + Offset = VL6180xDevDataGet(dev, Part2PartOffsetNVM)/scaling; + status = VL6180x_WrByte(dev, SYSRANGE_PART_TO_PART_RANGE_OFFSET, Offset); +#if ! VL6180x_EXTENDED_RANGE + if( status ==0 ){ + status = VL6180x_RangeSetEceState(dev, scaling == 1); /* enable ece only at 1x scaling */ + } + if( status == 0 && !VL6180x_EXTENDED_RANGE && scaling!=1 ){ + status = NOT_GUARANTEED ; + } +#endif + } + else{ + status = INVALID_PARAMS; + } +#undef min_scaling +#undef max_scaling + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_UpscaleGetScaling(VL6180xDev_t dev) +{ + int status; + LOG_FUNCTION_START(""); + status=_GetUpscale(dev ); + LOG_FUNCTION_END(status); + + return status; +} + + +int VL6180X::VL6180x_UpscaleStaticInit(VL6180xDev_t dev) +{ + /* todo make these a fail macro in case only 1x is suppoted */ + int status; + + LOG_FUNCTION_START(""); + do{ + status=VL6180x_UpscaleRegInit(dev); + if( status){ + VL6180x_ErrLog("regInit fail"); + break; + } +#if VL6180x_EXTENDED_RANGE + status = VL6180x_RangeSetEceState(dev, 0); + if( status){ + VL6180x_ErrLog("VL6180x_RangeSetEceState fail"); + break; + } +#endif + } while(0); + if( !status){ + /* must write the scaler at least once to the device to ensure the scaler is in a known state. */ + status=VL6180x_UpscaleSetScaling(dev, _GetUpscale(dev)); + VL6180x_WrByte( dev, SYSTEM_FRESH_OUT_OF_RESET, 0x00); /* change fresh out of set status to 0 */ + } + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_SetGPIOxPolarity(VL6180xDev_t dev, int pin, int active_high) +{ + int status; + LOG_FUNCTION_START("%d %d",(int) pin, (int)active_high); + + if( pin ==0 || pin ==1 ){ + uint16_t RegIndex; + uint8_t DataSet; + if( pin==0 ) + RegIndex= SYSTEM_MODE_GPIO0; + else + RegIndex= SYSTEM_MODE_GPIO1; + + if (active_high ) + DataSet = GPIOx_POLARITY_SELECT_MASK; + else + DataSet = 0; + + status = VL6180x_UpdateByte(dev, RegIndex, (uint8_t)~GPIOx_POLARITY_SELECT_MASK, DataSet); + } + else{ + VL6180x_ErrLog("Invalid pin param %d", (int)pin); + status = INVALID_PARAMS; + } + + LOG_FUNCTION_END(status); + + return status; +} + +int VL6180X::VL6180x_SetGPIOxFunctionality(VL6180xDev_t dev, int pin, uint8_t functionality) +{ + int status; + + LOG_FUNCTION_START("%d %d",(int) pin, (int)functionality); + + if( ((pin ==0) || (pin ==1)) && IsValidGPIOFunction(functionality) ){ + uint16_t RegIndex; + + if( pin==0 ) + RegIndex= SYSTEM_MODE_GPIO0; + else + RegIndex= SYSTEM_MODE_GPIO1; + + status = VL6180x_UpdateByte(dev, RegIndex, (uint8_t)~GPIOx_FUNCTIONALITY_SELECT_MASK, functionality<<GPIOx_FUNCTIONALITY_SELECT_SHIFT); + if( status){ + VL6180x_ErrLog("Update SYSTEM_MODE_GPIO%d fail", (int)pin); + } + } + else{ + VL6180x_ErrLog("Invalid pin %d or function %d", (int)pin, (int) functionality); + status = INVALID_PARAMS; + } + + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_SetupGPIOx(VL6180xDev_t dev, int pin, uint8_t IntFunction, int ActiveHigh) +{ + int status; + + LOG_FUNCTION_START("%d %d",(int) pin, (int)IntFunction); + + if( ((pin ==0) || (pin ==1)) && IsValidGPIOFunction(IntFunction) ){ + uint16_t RegIndex; + uint8_t value=0; + + if( pin==0 ) + RegIndex= SYSTEM_MODE_GPIO0; + else + RegIndex= SYSTEM_MODE_GPIO1; + + if( ActiveHigh ) + value|=GPIOx_POLARITY_SELECT_MASK; + + value |= IntFunction<<GPIOx_FUNCTIONALITY_SELECT_SHIFT; + status = VL6180x_WrByte(dev, RegIndex, value); + if( status ){ + VL6180x_ErrLog("SYSTEM_MODE_GPIO%d wr fail", (int)pin-SYSTEM_MODE_GPIO0); + } + } + else{ + VL6180x_ErrLog("Invalid pin %d or function %d", (int)pin, (int) IntFunction); + status = INVALID_PARAMS; + } + + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_DisableGPIOxOut(VL6180xDev_t dev, int pin) { + int status; + + LOG_FUNCTION_START("%d",(int)pin); + + status=VL6180x_SetGPIOxFunctionality(dev, pin, GPIOx_SELECT_OFF); + + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_SetupGPIO1(VL6180xDev_t dev, uint8_t IntFunction, int ActiveHigh) +{ + int status; + LOG_FUNCTION_START("%d %d",(int)IntFunction, (int)ActiveHigh ); + status=VL6180x_SetupGPIOx(dev, 1 , IntFunction, ActiveHigh); + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_RangeConfigInterrupt(VL6180xDev_t dev, uint8_t ConfigGpioInt) +{ + int status; + + if( ConfigGpioInt<= CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY){ + status = VL6180x_UpdateByte(dev, SYSTEM_INTERRUPT_CONFIG_GPIO, (uint8_t)(~CONFIG_GPIO_RANGE_MASK), ConfigGpioInt); + } + else{ + VL6180x_ErrLog("Invalid config mode param %d", (int)ConfigGpioInt); + status = INVALID_PARAMS; + } + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_RangeSetEceFactor(VL6180xDev_t dev, uint16_t FactorM, uint16_t FactorD){ + int status; + uint8_t u8; + + LOG_FUNCTION_START("%d %d", (int)FactorM, (int)FactorD ); + do{ + /* D cannot be 0 M must be <=D and >= 0 */ + if( FactorM <= FactorD && FactorD> 0){ + VL6180xDevDataSet(dev, EceFactorM, FactorM); + VL6180xDevDataSet(dev, EceFactorD, FactorD); + /* read and re-apply max conv time to get new ece factor set */ + status = VL6180x_RdByte(dev, SYSRANGE_MAX_CONVERGENCE_TIME, &u8); + if( status){ + VL6180x_ErrLog("SYSRANGE_MAX_CONVERGENCE_TIME rd fail "); + break; + } + status = VL6180x_RangeSetMaxConvergenceTime(dev, u8); + if( status <0 ){ + VL6180x_ErrLog("fail to apply time after ece m/d change"); + break; + } + } + else{ + VL6180x_ErrLog("invalid factor %d/%d", (int)FactorM, (int)FactorD ); + status = INVALID_PARAMS; + } + } + while(0); + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_RangeSetEceState(VL6180xDev_t dev, int enable ){ + int status; + uint8_t or_mask; + + LOG_FUNCTION_START("%d", (int)enable); + if( enable ) + or_mask = RANGE_CHECK_ECE_ENABLE_MASK; + else + or_mask = 0; + + status =VL6180x_UpdateByte(dev, SYSRANGE_RANGE_CHECK_ENABLES, ~RANGE_CHECK_ECE_ENABLE_MASK, or_mask); + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_RangeSetMaxConvergenceTime(VL6180xDev_t dev, uint8_t MaxConTime_msec) +{ + int status = 0; + LOG_FUNCTION_START("%d",(int)MaxConTime_msec); + do{ + status=VL6180x_WrByte(dev, SYSRANGE_MAX_CONVERGENCE_TIME, MaxConTime_msec); + if( status ){ + break; + } + status=VL6180x_RangeSetEarlyConvergenceEestimateThreshold(dev); + if( status){ + break; + } + status = _DMax_InitData(dev); + } + while(0); + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_RangeSetInterMeasPeriod(VL6180xDev_t dev, uint32_t InterMeasTime_msec){ + uint8_t SetTime; + int status; + + LOG_FUNCTION_START("%d",(int)InterMeasTime_msec); + do { + if( InterMeasTime_msec > 2550 ){ + status = INVALID_PARAMS; + break; + } + /* doc in not 100% clear and confusing about the limit practically all value are OK but 0 + * that can hang device in continuous mode */ + if( InterMeasTime_msec < 10 ) { + InterMeasTime_msec=10; + } + SetTime=(uint8_t)(InterMeasTime_msec/10); + status=VL6180x_WrByte(dev, SYSRANGE_INTERMEASUREMENT_PERIOD, SetTime); + if( status ){ + VL6180x_ErrLog("SYSRANGE_INTERMEASUREMENT_PERIOD wr fail"); + } + else + if( SetTime != InterMeasTime_msec /10 ) { + status = MIN_CLIPED; /* on success change status to clip if it did */ + } + }while(0); + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_RangeGetDeviceReady(VL6180xDev_t dev, int * Ready){ + int status; + uint8_t u8; + LOG_FUNCTION_START("%p", (int)Ready); + status=VL6180x_RdByte(dev, RESULT_RANGE_STATUS, &u8); + if( !status) + *Ready = u8&RANGE_DEVICE_READY_MASK; + LOG_FUNCTION_END_FMT(status,"%d", *Ready); + return status; +} + + +int VL6180X::VL6180x_RangeWaitDeviceReady(VL6180xDev_t dev, int MaxLoop ){ + int status; /* if user specify an invalid <=0 loop count we'll return error */ + int n; + uint8_t u8; + LOG_FUNCTION_START("%d", (int)MaxLoop); + if( MaxLoop<1){ + status=INVALID_PARAMS; + } + else{ + for( n=0; n < MaxLoop ; n++){ + status=VL6180x_RdByte(dev, RESULT_RANGE_STATUS, &u8); + if( status) + break; + u8 = u8 & RANGE_DEVICE_READY_MASK; + if( u8 ) + break; + + } + if( !status && !u8 ){ + status = TIME_OUT; + } + } + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_RangeSetSystemMode(VL6180xDev_t dev, uint8_t mode) +{ + int status; + LOG_FUNCTION_START("%d", (int)mode); + /* FIXME we are not checking device is ready via @a VL6180x_RangeWaitDeviceReady + * so if called back to back real fast we are not checking + * if previous mode "set" got absorbed => bit 0 must be 0 so that it work + */ + if( mode <= 3){ + status=VL6180x_WrByte(dev, SYSRANGE_START, mode); + if( status ){ + VL6180x_ErrLog("SYSRANGE_START wr fail"); + } + } + else{ + status = INVALID_PARAMS; + } + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_RangeStartContinuousMode(VL6180xDev_t dev) +{ + int status; + LOG_FUNCTION_START(""); + status= VL6180x_RangeSetSystemMode(dev, MODE_START_STOP | MODE_CONTINUOUS); + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_RangeStartSingleShot(VL6180xDev_t dev) { + int status; + LOG_FUNCTION_START(""); + status = VL6180x_RangeSetSystemMode(dev, MODE_START_STOP|MODE_SINGLESHOT); + LOG_FUNCTION_END(status); + return status; +} + + +int VL6180X::VL6180x_RangeSetEarlyConvergenceEestimateThreshold(VL6180xDev_t dev) +{ + int status; + + const uint32_t cMicroSecPerMilliSec = 1000; + const uint32_t cEceSampleTime_us = 500; + uint32_t ece_factor_m = VL6180xDevDataGet(dev, EceFactorM); + uint32_t ece_factor_d = VL6180xDevDataGet(dev, EceFactorD); + uint32_t convergTime_us; + uint32_t fineThresh; + uint32_t eceThresh; + uint8_t u8; + uint32_t maxConv_ms; + int32_t AveTime; + + LOG_FUNCTION_START(""); + + do{ + status = VL6180x_RdByte(dev, SYSRANGE_MAX_CONVERGENCE_TIME, &u8); + if( status ){ + VL6180x_ErrLog("SYSRANGE_MAX_CONVERGENCE_TIME rd fail"); + break; + } + maxConv_ms = u8; + AveTime = _GetAveTotalTime(dev); + if( AveTime <0 ){ + status=-1; + break; + } + + convergTime_us = maxConv_ms * cMicroSecPerMilliSec - AveTime; + status = VL6180x_RdDWord(dev, 0xB8, &fineThresh); + if( status ) { + VL6180x_ErrLog("reg 0xB8 rd fail"); + break; + } + fineThresh*=256; + eceThresh = ece_factor_m * cEceSampleTime_us * fineThresh/(convergTime_us * ece_factor_d); + + status=VL6180x_WrWord(dev, SYSRANGE_EARLY_CONVERGENCE_ESTIMATE, (uint16_t)eceThresh); + } + while(0); + + LOG_FUNCTION_END(status); + return status; +} + +/* + * Return >0 = time + * <0 1 if fail to get read data from device to compute time + */ +int32_t VL6180X::_GetAveTotalTime(VL6180xDev_t dev) { + uint32_t cFwOverhead_us = 24; + uint32_t cVcpSetupTime_us = 70; + uint32_t cPLL2_StartupDelay_us = 200; + uint8_t cMeasMask = 0x07; + uint32_t Samples; + uint32_t SamplePeriod; + uint32_t SingleTime_us; + int32_t TotalAveTime_us; + uint8_t u8; + int status; + + LOG_FUNCTION_START(""); + + status = VL6180x_RdByte(dev, 0x109, &u8); + if (status) { + VL6180x_ErrLog("rd 0x109 fail"); + return -1; + } + Samples = u8 & cMeasMask; + status = VL6180x_RdByte(dev, READOUT_AVERAGING_SAMPLE_PERIOD, &u8); + if (status) { + VL6180x_ErrLog("i2c READOUT_AVERAGING_SAMPLE_PERIOD fail"); + return -1; + } + SamplePeriod = u8; + SingleTime_us = cFwOverhead_us + cVcpSetupTime_us + (SamplePeriod * 10); + TotalAveTime_us = (Samples + 1) * SingleTime_us + cPLL2_StartupDelay_us; + + LOG_FUNCTION_END(TotalAveTime_us); + return TotalAveTime_us; +} + +#if VL6180x_HAVE_DMAX_RANGING +#define _GetDMaxDataRetSignalAt400mm(dev) VL6180xDevDataGet(dev, DMaxData.retSignalAt400mm) +#else +#define _GetDMaxDataRetSignalAt400mm(dev) 375 // Use a default high value +#endif + + +#if VL6180x_WRAP_AROUND_FILTER_SUPPORT + +#define FILTER_STDDEV_SAMPLES 6 +#define MIN_FILTER_STDDEV_SAMPLES 3 +#define MIN_FILTER_VALID_STDDEV_SAMPLES 3 +#define FILTER_INVALID_DISTANCE 65535 + +#define _FilterData(field) VL6180xDevDataGet(dev, FilterData.field) +/* + * One time init + */ +static int _filter_Init( VL6180xDev_t dev) { + int i; + _FilterData(MeasurementIndex) = 0; + + _FilterData(Default_ZeroVal) = 0; + _FilterData(Default_VAVGVal) = 0; + _FilterData(NoDelay_ZeroVal) = 0; + _FilterData(NoDelay_VAVGVal) = 0; + _FilterData(Previous_VAVGDiff) = 0; + + _FilterData(StdFilteredReads) = 0; + + for (i = 0; i < FILTER_NBOF_SAMPLES; i++) { + _FilterData(LastTrueRange)[i] = FILTER_INVALID_DISTANCE; + _FilterData(LastReturnRates)[i] = 0; + } + return 0; +} + + +static uint32_t _filter_StdDevDamper(uint32_t AmbientRate, uint32_t SignalRate, const uint32_t StdDevLimitLowLight, const uint32_t StdDevLimitLowLightSNR, const uint32_t StdDevLimitHighLight, const uint32_t StdDevLimitHighLightSNR) { + uint32_t newStdDev; + uint16_t SNR; + + if (AmbientRate > 0) + SNR = (uint16_t) ((100 * SignalRate) / AmbientRate); + else + SNR = 9999; + + if (SNR >= StdDevLimitLowLightSNR) { + newStdDev = StdDevLimitLowLight; + } else { + if (SNR <= StdDevLimitHighLightSNR) + newStdDev = StdDevLimitHighLight; + else { + newStdDev = (uint32_t) (StdDevLimitHighLight + (SNR - StdDevLimitHighLightSNR) * (int) (StdDevLimitLowLight - StdDevLimitHighLight) / (StdDevLimitLowLightSNR - StdDevLimitHighLightSNR)); + } + } + + return newStdDev; +} + + +/* + * Return <0 on error + */ +int32_t VL6180X::_filter_Start(VL6180xDev_t dev, uint16_t m_trueRange_mm, uint16_t m_rawRange_mm, uint32_t m_rtnSignalRate, uint32_t m_rtnAmbientRate, uint16_t errorCode) { + int status; + uint16_t m_newTrueRange_mm = 0; + + uint16_t i; + uint16_t bypassFilter = 0; + + uint16_t registerValue; + + uint32_t register32BitsValue1; + uint32_t register32BitsValue2; + + uint16_t ValidDistance = 0; + + uint16_t WrapAroundFlag = 0; + uint16_t NoWrapAroundFlag = 0; + uint16_t NoWrapAroundHighConfidenceFlag = 0; + + uint16_t FlushFilter = 0; + uint32_t RateChange = 0; + + uint16_t StdDevSamples = 0; + uint32_t StdDevDistanceSum = 0; + uint32_t StdDevDistanceMean = 0; + uint32_t StdDevDistance = 0; + uint32_t StdDevRateSum = 0; + uint32_t StdDevRateMean = 0; + uint32_t StdDevRate = 0; + uint32_t StdDevLimitWithTargetMove = 0; + + uint32_t VAVGDiff; + uint32_t IdealVAVGDiff; + uint32_t MinVAVGDiff; + uint32_t MaxVAVGDiff; + + /* Filter Parameters */ + static const uint16_t ROMABLE_DATA WrapAroundLowRawRangeLimit = 60; + static const uint32_t ROMABLE_DATA WrapAroundLowReturnRateLimit_ROM = 800; // Shall be adapted depending on crossTalk + static const uint16_t ROMABLE_DATA WrapAroundLowRawRangeLimit2 = 165; + static const uint32_t ROMABLE_DATA WrapAroundLowReturnRateLimit2_ROM = 180; // Shall be adapted depending on crossTalk and device sensitivity + + static const uint32_t ROMABLE_DATA WrapAroundLowReturnRateFilterLimit_ROM = 850; // Shall be adapted depending on crossTalk and device sensitivity + static const uint16_t ROMABLE_DATA WrapAroundHighRawRangeFilterLimit = 350; + static const uint32_t ROMABLE_DATA WrapAroundHighReturnRateFilterLimit_ROM = 1400; // Shall be adapted depending on crossTalk and device sensitivity + + static const uint32_t ROMABLE_DATA WrapAroundMaximumAmbientRateFilterLimit = 7500; + + /* Temporal filter data and flush values */ + static const uint32_t ROMABLE_DATA MinReturnRateFilterFlush = 75; + static const uint32_t ROMABLE_DATA MaxReturnRateChangeFilterFlush = 50; + + /* STDDEV values and damper values */ + + static const uint32_t ROMABLE_DATA StdDevLimitLowLight = 300; + static const uint32_t ROMABLE_DATA StdDevLimitLowLightSNR = 30; /* 0.3 */ + static const uint32_t ROMABLE_DATA StdDevLimitHighLight = 2500; + static const uint32_t ROMABLE_DATA StdDevLimitHighLightSNR = 5; /* 0.05 */ + + static const uint32_t ROMABLE_DATA StdDevHighConfidenceSNRLimit = 8; + + static const uint32_t ROMABLE_DATA StdDevMovingTargetStdDevLimit = 90000; + + static const uint32_t ROMABLE_DATA StdDevMovingTargetReturnRateLimit = 3500; + static const uint32_t ROMABLE_DATA StdDevMovingTargetStdDevForReturnRateLimit = 5000; + + static const uint32_t ROMABLE_DATA MAX_VAVGDiff = 1800; + + /* WrapAroundDetection variables */ + static const uint16_t ROMABLE_DATA WrapAroundNoDelayCheckPeriod = 2; + static const uint16_t ROMABLE_DATA StdFilteredReadsIncrement = 2; + static const uint16_t ROMABLE_DATA StdMaxFilteredReads = 4; + + uint32_t SignalRateDMax; + uint32_t WrapAroundLowReturnRateLimit; + uint32_t WrapAroundLowReturnRateLimit2; + uint32_t WrapAroundLowReturnRateFilterLimit; + uint32_t WrapAroundHighReturnRateFilterLimit; + + uint8_t u8, u8_2; + uint32_t XTalkCompRate_KCps; + uint32_t StdDevLimit = 300; + uint32_t MaxOrInvalidDistance = 255*_GetUpscale(dev); + /* #define MaxOrInvalidDistance (uint16_t) (255 * 3) */ + + /* Check if distance is Valid or not */ + switch (errorCode) { + case 0x0C: + m_trueRange_mm = MaxOrInvalidDistance; + ValidDistance = 0; + break; + case 0x0D: + m_trueRange_mm = MaxOrInvalidDistance; + ValidDistance = 1; + break; + case 0x0F: + m_trueRange_mm = MaxOrInvalidDistance; + ValidDistance = 1; + break; + default: + if (m_rawRange_mm >= MaxOrInvalidDistance) { + ValidDistance = 0; + } else { + ValidDistance = 1; + } + break; + } + m_newTrueRange_mm = m_trueRange_mm; + + XTalkCompRate_KCps = VL6180xDevDataGet(dev, XTalkCompRate_KCps ); + + + //Update signal rate limits depending on crosstalk + SignalRateDMax = (uint32_t)_GetDMaxDataRetSignalAt400mm(dev) + XTalkCompRate_KCps; + WrapAroundLowReturnRateLimit = WrapAroundLowReturnRateLimit_ROM + XTalkCompRate_KCps; + WrapAroundLowReturnRateLimit2 = ((WrapAroundLowReturnRateLimit2_ROM * SignalRateDMax) / 312) + XTalkCompRate_KCps; + WrapAroundLowReturnRateFilterLimit = ((WrapAroundLowReturnRateFilterLimit_ROM * SignalRateDMax) / 312) + XTalkCompRate_KCps; + WrapAroundHighReturnRateFilterLimit = ((WrapAroundHighReturnRateFilterLimit_ROM * SignalRateDMax) / 312) + XTalkCompRate_KCps; + + + /* Checks on low range data */ + if ((m_rawRange_mm < WrapAroundLowRawRangeLimit) && (m_rtnSignalRate < WrapAroundLowReturnRateLimit)) { + m_newTrueRange_mm = MaxOrInvalidDistance; + bypassFilter = 1; + } + if ((m_rawRange_mm < WrapAroundLowRawRangeLimit2) && (m_rtnSignalRate < WrapAroundLowReturnRateLimit2)) { + m_newTrueRange_mm = MaxOrInvalidDistance; + bypassFilter = 1; + } + + /* Checks on Ambient rate level */ + if (m_rtnAmbientRate > WrapAroundMaximumAmbientRateFilterLimit) { + /* Too high ambient rate */ + FlushFilter = 1; + bypassFilter = 1; + } + /* Checks on Filter flush */ + if (m_rtnSignalRate < MinReturnRateFilterFlush) { + /* Completely lost target, so flush the filter */ + FlushFilter = 1; + bypassFilter = 1; + } + if (_FilterData(LastReturnRates)[0] != 0) { + if (m_rtnSignalRate > _FilterData(LastReturnRates)[0]) + RateChange = (100 * (m_rtnSignalRate - _FilterData(LastReturnRates)[0])) / _FilterData(LastReturnRates)[0]; + else + RateChange = (100 * (_FilterData(LastReturnRates)[0] - m_rtnSignalRate)) / _FilterData(LastReturnRates)[0]; + } else + RateChange = 0; + if (RateChange > MaxReturnRateChangeFilterFlush) { + FlushFilter = 1; + } +/* TODO optimize filter using circular buffer */ + if (FlushFilter == 1) { + _FilterData(MeasurementIndex) = 0; + for (i = 0; i < FILTER_NBOF_SAMPLES; i++) { + _FilterData(LastTrueRange)[i] = FILTER_INVALID_DISTANCE; + _FilterData(LastReturnRates)[i] = 0; + } + } else { + for (i = (uint16_t) (FILTER_NBOF_SAMPLES - 1); i > 0; i--) { + _FilterData(LastTrueRange)[i] = _FilterData(LastTrueRange)[i - 1]; + _FilterData(LastReturnRates)[i] = _FilterData(LastReturnRates)[i - 1]; + } + } + if (ValidDistance == 1) + _FilterData(LastTrueRange)[0] = m_trueRange_mm; + else + _FilterData(LastTrueRange)[0] = FILTER_INVALID_DISTANCE; + _FilterData(LastReturnRates)[0] = m_rtnSignalRate; + + /* Check if we need to go through the filter or not */ + if (!(((m_rawRange_mm < WrapAroundHighRawRangeFilterLimit) && (m_rtnSignalRate < WrapAroundLowReturnRateFilterLimit)) || ((m_rawRange_mm >= WrapAroundHighRawRangeFilterLimit) && (m_rtnSignalRate < WrapAroundHighReturnRateFilterLimit)))) + bypassFilter = 1; + + /* Check which kind of measurement has been made */ + status = VL6180x_RdByte(dev, 0x01AC, &u8 ); + if( status ){ + VL6180x_ErrLog("0x01AC rd fail"); + goto done_err; + } + registerValue =u8; + + /* Read data for filtering */ + status = VL6180x_RdByte(dev, 0x10C, &u8 ); /* read only 8 lsb bits */ + if( status ){ + VL6180x_ErrLog("0x010C rd fail"); + goto done_err; + } + register32BitsValue1=u8; + status = VL6180x_RdByte(dev, 0x0110, &u8); /* read only 8 lsb bits */ + if( status ){ + VL6180x_ErrLog("0x0110 rd fail"); + goto done_err; + } + register32BitsValue2 = u8; + + if (registerValue == 0x3E) { + _FilterData(Default_ZeroVal) = register32BitsValue1; + _FilterData(Default_VAVGVal) = register32BitsValue2; + } else { + _FilterData(NoDelay_ZeroVal) = register32BitsValue1; + _FilterData(NoDelay_VAVGVal) = register32BitsValue2; + } + + if (bypassFilter == 1) { + /* Do not go through the filter */ + if (registerValue != 0x3E) { + status = VL6180x_WrByte(dev, 0x1AC, 0x3E); + if( status ){ + VL6180x_ErrLog("0x01AC bypass wr fail"); + goto done_err; + } + status = VL6180x_WrByte(dev, 0x0F2, 0x01); + if( status ){ + VL6180x_ErrLog("0x0F2 bypass wr fail"); + goto done_err; + } + } + /* Set both Default and NoDelay To same value */ + _FilterData(Default_ZeroVal) = register32BitsValue1; + _FilterData(Default_VAVGVal) = register32BitsValue2; + _FilterData(NoDelay_ZeroVal) = register32BitsValue1; + _FilterData(NoDelay_VAVGVal) = register32BitsValue2; + _FilterData(MeasurementIndex) = 0; + + return m_newTrueRange_mm; + } + + if (_FilterData(MeasurementIndex) % WrapAroundNoDelayCheckPeriod == 0) { + u8=0x3C; + u8_2 = 0x05; + } else { + u8=0x3E; + u8_2 = 0x01; + } + status = VL6180x_WrByte(dev, 0x01AC, u8); + if( status ){ + VL6180x_ErrLog("0x01AC wr fail"); + goto done_err; + } + status = VL6180x_WrByte(dev, 0x0F2, u8_2); + if( status ){ + VL6180x_ErrLog("0x0F2 wr fail"); + goto done_err; + } + + + _FilterData(MeasurementIndex)++; + + /* Computes current VAVGDiff */ + if (_FilterData(Default_VAVGVal) > _FilterData(NoDelay_VAVGVal)) + VAVGDiff = _FilterData(Default_VAVGVal) - _FilterData(NoDelay_VAVGVal); + else + VAVGDiff = 0; + _FilterData(Previous_VAVGDiff) = VAVGDiff; + + /* Check the VAVGDiff */ + if (_FilterData(Default_ZeroVal) > _FilterData(NoDelay_ZeroVal)) + IdealVAVGDiff = _FilterData(Default_ZeroVal) - _FilterData(NoDelay_ZeroVal); + else + IdealVAVGDiff = _FilterData(NoDelay_ZeroVal) - _FilterData(Default_ZeroVal); + if (IdealVAVGDiff > MAX_VAVGDiff) + MinVAVGDiff = IdealVAVGDiff - MAX_VAVGDiff; + else + MinVAVGDiff = 0; + MaxVAVGDiff = IdealVAVGDiff + MAX_VAVGDiff; + if (VAVGDiff < MinVAVGDiff || VAVGDiff > MaxVAVGDiff) { + WrapAroundFlag = 1; + } else { + /* Go through filtering check */ + + /* StdDevLimit Damper on SNR */ + StdDevLimit = _filter_StdDevDamper(m_rtnAmbientRate, m_rtnSignalRate, StdDevLimitLowLight, StdDevLimitLowLightSNR, StdDevLimitHighLight, StdDevLimitHighLightSNR); + + /* Standard deviations computations */ + StdDevSamples = 0; + StdDevDistanceSum = 0; + StdDevDistanceMean = 0; + StdDevDistance = 0; + StdDevRateSum = 0; + StdDevRateMean = 0; + StdDevRate = 0; + for (i = 0; (i < FILTER_NBOF_SAMPLES) && (StdDevSamples < FILTER_STDDEV_SAMPLES); i++) { + if (_FilterData(LastTrueRange)[i] != FILTER_INVALID_DISTANCE) { + StdDevSamples = (uint16_t) (StdDevSamples + 1); + StdDevDistanceSum = (uint32_t) (StdDevDistanceSum + _FilterData(LastTrueRange)[i]); + StdDevRateSum = (uint32_t) (StdDevRateSum + _FilterData(LastReturnRates)[i]); + } + } + if (StdDevSamples > 0) { + StdDevDistanceMean = (uint32_t) (StdDevDistanceSum / StdDevSamples); + StdDevRateMean = (uint32_t) (StdDevRateSum / StdDevSamples); + } + /* TODO optimize shorten Std dev in aisngle loop computation using sum of x2 - (sum of x)2 */ + StdDevSamples = 0; + StdDevDistanceSum = 0; + StdDevRateSum = 0; + for (i = 0; (i < FILTER_NBOF_SAMPLES) && (StdDevSamples < FILTER_STDDEV_SAMPLES); i++) { + if (_FilterData(LastTrueRange)[i] != FILTER_INVALID_DISTANCE) { + StdDevSamples = (uint16_t) (StdDevSamples + 1); + StdDevDistanceSum = (uint32_t) (StdDevDistanceSum + (int) (_FilterData(LastTrueRange)[i] - StdDevDistanceMean) * (int) (_FilterData(LastTrueRange)[i] - StdDevDistanceMean)); + StdDevRateSum = (uint32_t) (StdDevRateSum + (int) (_FilterData(LastReturnRates)[i] - StdDevRateMean) * (int) (_FilterData(LastReturnRates)[i] - StdDevRateMean)); + } + } + if (StdDevSamples >= MIN_FILTER_STDDEV_SAMPLES) { + StdDevDistance = (uint16_t) (StdDevDistanceSum / StdDevSamples); + StdDevRate = (uint16_t) (StdDevRateSum / StdDevSamples); + } else { + StdDevDistance = 0; + StdDevRate = 0; + } + + /* Check Return rate standard deviation */ + if (StdDevRate < StdDevMovingTargetStdDevLimit) { + if (StdDevSamples < MIN_FILTER_VALID_STDDEV_SAMPLES) { + m_newTrueRange_mm = MaxOrInvalidDistance; + } else { + /* Check distance standard deviation */ + if (StdDevRate < StdDevMovingTargetReturnRateLimit) + StdDevLimitWithTargetMove = StdDevLimit + (((StdDevMovingTargetStdDevForReturnRateLimit - StdDevLimit) * StdDevRate) / StdDevMovingTargetReturnRateLimit); + else + StdDevLimitWithTargetMove = StdDevMovingTargetStdDevForReturnRateLimit; + + if ((StdDevDistance * StdDevHighConfidenceSNRLimit) < StdDevLimitWithTargetMove) { + NoWrapAroundHighConfidenceFlag = 1; + } else { + if (StdDevDistance < StdDevLimitWithTargetMove) { + if (StdDevSamples >= MIN_FILTER_VALID_STDDEV_SAMPLES) { + NoWrapAroundFlag = 1; + } else { + m_newTrueRange_mm = MaxOrInvalidDistance; + } + } else { + WrapAroundFlag = 1; + } + } + } + } else { + WrapAroundFlag = 1; + } + } + + if (m_newTrueRange_mm == MaxOrInvalidDistance) { + if (_FilterData(StdFilteredReads) > 0) + _FilterData(StdFilteredReads) = (uint16_t) (_FilterData(StdFilteredReads) - 1); + } else { + if (WrapAroundFlag == 1) { + m_newTrueRange_mm = MaxOrInvalidDistance; + _FilterData(StdFilteredReads) = (uint16_t) (_FilterData(StdFilteredReads) + StdFilteredReadsIncrement); + if (_FilterData(StdFilteredReads) > StdMaxFilteredReads) + _FilterData(StdFilteredReads) = StdMaxFilteredReads; + } else { + if (NoWrapAroundFlag == 1) { + if (_FilterData(StdFilteredReads) > 0) { + m_newTrueRange_mm = MaxOrInvalidDistance; + if (_FilterData(StdFilteredReads) > StdFilteredReadsIncrement) + _FilterData(StdFilteredReads) = (uint16_t) (_FilterData(StdFilteredReads) - StdFilteredReadsIncrement); + else + _FilterData(StdFilteredReads) = 0; + } + } else { + if (NoWrapAroundHighConfidenceFlag == 1) { + _FilterData(StdFilteredReads) = 0; + } + } + } + } + + return m_newTrueRange_mm; + done_err: + return -1; + + #undef MaxOrInvalidDistance +} + + +int VL6180X::_filter_GetResult(VL6180xDev_t dev, VL6180x_RangeData_t *pRangeData) { + uint32_t m_rawRange_mm = 0; + int32_t FilteredRange; + const uint8_t scaler = _GetUpscale(dev); + uint8_t u8; + int status; + + do { + status = VL6180x_RdByte(dev, RESULT_RANGE_RAW, &u8); + if (status) { + VL6180x_ErrLog("RESULT_RANGE_RAW rd fail"); + break; + } + m_rawRange_mm = u8; + + FilteredRange = _filter_Start(dev, pRangeData->range_mm, (m_rawRange_mm * scaler), pRangeData->rtnRate, pRangeData->rtnAmbRate, pRangeData->errorStatus); + if( FilteredRange<0 ){ + status = -1; + break; + } + pRangeData->FilteredData.range_mm= FilteredRange; + pRangeData->FilteredData.rawRange_mm = m_rawRange_mm * scaler; + } while (0); + return status; +} + +#undef _FilterData +#undef FILTER_STDDEV_SAMPLES +#undef MIN_FILTER_STDDEV_SAMPLES +#undef MIN_FILTER_VALID_STDDEV_SAMPLES +#undef FILTER_INVALID_DISTANCE + +#endif /* VL6180x_WRAP_AROUND_FILTER_SUPPORT */ + +#ifdef VL6180x_HAVE_RATE_DATA + +int VL6180X::_GetRateResult(VL6180xDev_t dev, VL6180x_RangeData_t *pRangeData) { + uint32_t m_rtnConvTime = 0; + uint32_t m_rtnSignalRate = 0; + uint32_t m_rtnAmbientRate = 0; + uint32_t m_rtnSignalCount = 0; + uint32_t m_rtnAmbientCount = 0; + uint32_t m_refConvTime = 0; + uint32_t cRtnSignalCountMax = 0x7FFFFFFF; + uint32_t cDllPeriods = 6; + uint32_t calcConvTime = 0; + + int status; + + do { + + status = VL6180x_RdDWord(dev, RESULT_RANGE_RETURN_SIGNAL_COUNT, &m_rtnSignalCount); + if (status) { + VL6180x_ErrLog("RESULT_RANGE_RETURN_SIGNAL_COUNT rd fail"); + break; + } + if (m_rtnSignalCount > cRtnSignalCountMax) { + m_rtnSignalCount = 0; + } + + status = VL6180x_RdDWord(dev, RESULT_RANGE_RETURN_AMB_COUNT, &m_rtnAmbientCount); + if (status) { + VL6180x_ErrLog("RESULT_RANGE_RETURN_AMB_COUNTrd fail"); + break; + } + + + status = VL6180x_RdDWord(dev, RESULT_RANGE_RETURN_CONV_TIME, &m_rtnConvTime); + if (status) { + VL6180x_ErrLog("RESULT_RANGE_RETURN_CONV_TIME rd fail"); + break; + } + + status = VL6180x_RdDWord(dev, RESULT_RANGE_REFERENCE_CONV_TIME, &m_refConvTime); + if (status) { + VL6180x_ErrLog("RESULT_RANGE_REFERENCE_CONV_TIME rd fail"); + break; + } + + pRangeData->rtnConvTime = m_rtnConvTime; + pRangeData->refConvTime = m_refConvTime; + + calcConvTime = m_refConvTime; + if (m_rtnConvTime > m_refConvTime) { + calcConvTime = m_rtnConvTime; + } + if (calcConvTime == 0) + calcConvTime = 63000; + + m_rtnSignalRate = (m_rtnSignalCount * 1000) / calcConvTime; + m_rtnAmbientRate = (m_rtnAmbientCount * cDllPeriods * 1000) / calcConvTime; + + pRangeData->rtnRate = m_rtnSignalRate; + pRangeData->rtnAmbRate = m_rtnAmbientRate; + + + } while (0); + return status; +} +#endif /* VL6180x_HAVE_RATE_DATA */ + + +int VL6180X::VL6180x_DMaxSetState(VL6180xDev_t dev, int state){ + int status; + LOG_FUNCTION_START("%d", state); +#if VL6180x_HAVE_DMAX_RANGING + VL6180xDevDataSet(dev,DMaxEnable, state); + if( state ){ + status = _DMax_InitData(dev); + } + else { + status = 0; + } +#else + status = NOT_SUPPORTED; +#endif + LOG_FUNCTION_END(status); + return status; +} + +int VL6180X::VL6180x_DMaxGetState(VL6180xDev_t dev){ + int status; + LOG_FUNCTION_START(""); +#if VL6180x_HAVE_DMAX_RANGING + status = VL6180xDevDataGet(dev,DMaxEnable); +#else + status = 0; +#endif + LOG_FUNCTION_END(status); + return status; +} + + +#if VL6180x_HAVE_DMAX_RANGING + +#define _DMaxData(field) VL6180xDevDataGet(dev, DMaxData.field) +/* + * Convert fix point x.7 to KCpount per sec + */ + +#ifndef VL6180x_PLATFORM_PROVIDE_SQRT + +/* + * 32 bit integer square root with not so bad precision (integer result) and is quite fast + * see http://en.wikipedia.org/wiki/Methods_of_computing_square_roots + */ +uint32_t VL6180x_SqrtUint32(uint32_t num) { + uint32_t res = 0; + uint32_t bit = 1 << 30; /* The second-to-top bit is set: 1 << 30 for 32 bits */ + + /* "bit" starts at the highest power of four <= the argument. */ + while (bit > num) + bit >>= 2; + + while (bit != 0) { + if (num >= res + bit) { + num -= res + bit; + res = (res >> 1) + bit; + } + else + res >>= 1; + bit >>= 2; + } + return res; +} +#endif + + +/* DMax one time init */ +void _DMax_OneTimeInit(VL6180xDev_t dev){ + _DMaxData(ambTuningWindowFactor_K)=DEF_AMBIENT_TUNING; +} + + +static uint32_t _DMax_RawValueAtRateKCps(VL6180xDev_t dev, int32_t rate){ + uint32_t snrLimit_K; + int32_t DMaxSq; + uint32_t RawDMax; + DMaxFix_t retSignalAt400mm; + uint32_t ambTuningWindowFactor_K; + + + ambTuningWindowFactor_K = _DMaxData(ambTuningWindowFactor_K); + snrLimit_K = _DMaxData(snrLimit_K); + retSignalAt400mm = _DMaxData(retSignalAt400mm); /* 12 to 18 bits Kcps */ + if( rate > 0 ){ + DMaxSq = 400*400*1000 / rate -(400*400/330); /* K of (1/RtnAmb -1/330 )=> 30bit- (12-18)bit => 12-18 bits*/ + if( DMaxSq<= 0){ + RawDMax = 0; + } + else{ + /* value can be more 32 bit so base on raneg apply *retSignalAt400mm before or after division to presevr accuracy */ + if( DMaxSq< (2<<12) ){ + DMaxSq = DMaxSq*retSignalAt400mm/(snrLimit_K+ambTuningWindowFactor_K); /* max 12 + 12 to 18 -10 => 12-26 bit */ + }else{ + DMaxSq = DMaxSq/(snrLimit_K+ambTuningWindowFactor_K)*retSignalAt400mm; /* 12 to 18 -10 + 12 to 18 *=> 12-26 bit */ + } + RawDMax=VL6180x_SqrtUint32(DMaxSq); + } + } + else{ + RawDMax = 0x7FFFFFFF; /* bigest possibmle 32bit signed value */ + } + return RawDMax; +} + +/* + * fetch static data from register to avoid re-read + * precompute all intermediate constant and cliipings + * + * to be re-used/call on changes of : + * 0x2A + * SYSRANGE_MAX_AMBIENT_LEVEL_MULT + * Dev Data XtalkComRate_KCPs + * SYSRANGE_MAX_CONVERGENCE_TIME + * SYSRANGE_RANGE_CHECK_ENABLES mask RANGE_CHECK_RANGE_ENABLE_MASK + * range 0xb8-0xbb (0xbb) + */ +int VL6180X::_DMax_InitData(VL6180xDev_t dev){ + int status, warning; + uint8_t u8; + uint16_t u16; + uint32_t u32; + uint32_t Reg2A_KCps; + uint32_t RegB8; + uint8_t MaxConvTime; + uint32_t XTalkCompRate_KCps; + uint32_t RangeIgnoreThreshold; + int32_t minSignalNeeded; + uint8_t SysRangeCheckEn; + uint8_t snrLimit; + warning=0; + + static const int ROMABLE_DATA MaxConvTimeAdjust=-4; + + LOG_FUNCTION_START(""); + do{ + status = VL6180x_RdByte(dev, 0x02A ,&u8); + if( status ){ + VL6180x_ErrLog("Reg 0x02A rd fail"); + break; + } + + if( u8 == 0 ) { + warning = CALIBRATION_WARNING; + u8 = 40; /* use a default average value */ + } + Reg2A_KCps = Fix7_2_KCPs(u8); /* convert to KCPs */ + + status = VL6180x_RdByte(dev, SYSRANGE_RANGE_CHECK_ENABLES, &SysRangeCheckEn); + if (status) { + VL6180x_ErrLog("SYSRANGE_RANGE_CHECK_ENABLES rd fail "); + break; + } + + status = VL6180x_RdByte(dev, SYSRANGE_MAX_CONVERGENCE_TIME, &MaxConvTime); + if( status){ + VL6180x_ErrLog("SYSRANGE_MAX_CONVERGENCE_TIME rd fail "); + break; + } + + status = VL6180x_RdDWord(dev, 0x0B8, &RegB8); + if( status ){ + VL6180x_ErrLog("reg 0x0B8 rd fail "); + break; + } + + status = VL6180x_RdByte(dev, SYSRANGE_MAX_AMBIENT_LEVEL_MULT, &snrLimit); + if( status){ + VL6180x_ErrLog("SYSRANGE_MAX_AMBIENT_LEVEL_MULT rd fail "); + break; + } + _DMaxData(snrLimit_K) = (int32_t)16*1000/snrLimit; + XTalkCompRate_KCps = VL6180xDevDataGet(dev, XTalkCompRate_KCps ); + + if( Reg2A_KCps >= XTalkCompRate_KCps){ + _DMaxData(retSignalAt400mm)=( Reg2A_KCps - XTalkCompRate_KCps); + } + else{ + _DMaxData(retSignalAt400mm)=0; /* Reg2A_K - XTalkCompRate_KCp <0 is invalid */ + } + + /* if xtalk range check is off omit it in snr clipping */ + if( SysRangeCheckEn&RANGE_CHECK_RANGE_ENABLE_MASK ){ + status = VL6180x_RdWord(dev, SYSRANGE_RANGE_IGNORE_THRESHOLD, &u16); + if( status){ + VL6180x_ErrLog("SYSRANGE_RANGE_IGNORE_THRESHOLD rd fail "); + break; + } + RangeIgnoreThreshold = Fix7_2_KCPs(u16); + } + else{ + RangeIgnoreThreshold = 0; + } + + minSignalNeeded = (RegB8*256)/((int32_t)MaxConvTime+(int32_t)MaxConvTimeAdjust); /* KCps 8+8 bit -(1 to 6 bit) => 15-10 bit */ + /* minSignalNeeded = max ( minSignalNeeded, RangeIgnoreThreshold - XTalkCompRate_KCps) */ + if( minSignalNeeded <= RangeIgnoreThreshold - XTalkCompRate_KCps ) + minSignalNeeded = RangeIgnoreThreshold - XTalkCompRate_KCps; + + u32 = (minSignalNeeded*(uint32_t)snrLimit)/16; + _DMaxData(ClipSnrLimit ) = _DMax_RawValueAtRateKCps(dev, u32 ); /* clip to dmax to min signal snr limit rate*/ + } + while(0); + if( !status ) + status = warning; + LOG_FUNCTION_END(status); + return status; +} + +static int _DMax_Compute(VL6180xDev_t dev, VL6180x_RangeData_t *pRange){ + uint32_t rtnAmbRate; + int32_t DMax; + int scaling; + uint16_t HwLimitAtScale; + static const int ROMABLE_DATA rtnAmbLowLimit_KCps=330*1000; + + rtnAmbRate = pRange->rtnAmbRate; + if( rtnAmbRate < rtnAmbLowLimit_KCps ){ + DMax = _DMax_RawValueAtRateKCps( dev, rtnAmbRate); + scaling = _GetUpscale(dev); + HwLimitAtScale=UpperLimitLookUP[scaling - 1]; + + if( DMax > _DMaxData(ClipSnrLimit) ){ + DMax=_DMaxData(ClipSnrLimit); + } + if( DMax > HwLimitAtScale ){ + DMax=HwLimitAtScale; + } + pRange->DMax=DMax; + } + else{ + pRange->DMax = 0; + } + return 0; +} + +#undef _DMaxData +#undef Fix7_2_KCPs + +#endif /* VL6180x_HAVE_DMAX_RANGING */ + + +/******************************************************************************/ +/******************************************************************************/ + + + +/****************** Write and read functions from I2C *************************/ + +int VL6180X::VL6180x_WrByte(VL6180xDev_t dev, uint16_t index, uint8_t data) +{ + int status; + + status=VL6180x_I2CWrite(Device->I2cAddr, index, &data,(uint8_t)1); + return status; +} + +int VL6180X::VL6180x_WrWord(VL6180xDev_t dev, uint16_t index, uint16_t data) +{ + int status; + + status=VL6180x_I2CWrite(Device->I2cAddr, index, (uint8_t *)&data,(uint8_t)2); + return status; +} + +int VL6180X::VL6180x_WrDWord(VL6180xDev_t dev, uint16_t index, uint32_t data) +{ + int status; + + status=VL6180x_I2CWrite(Device->I2cAddr, index, (uint8_t *)&data,(uint8_t)4); + return status; +} + +int VL6180X::VL6180x_RdByte(VL6180xDev_t dev, uint16_t index, uint8_t *data) +{ + int status; + + uint8_t buffer; + status=VL6180x_I2CRead(Device->I2cAddr, index, &buffer,1); + if(!status) + { + *data=buffer; + } + return status; +} + +int VL6180X::VL6180x_RdWord(VL6180xDev_t dev, uint16_t index, uint16_t *data) +{ + int status; + + uint8_t buffer[2]; + status=VL6180x_I2CRead(Device->I2cAddr, index, buffer, 2); + if(!status) + { + memcpy(data, buffer, 2); + } + return status; +} + +int VL6180X::VL6180x_RdDWord(VL6180xDev_t dev, uint16_t index, uint32_t *data) +{ + int status; + uint8_t buffer[4]; + status=VL6180x_I2CRead(Device->I2cAddr, index, buffer,4); + if(!status) + { + memcpy(data, buffer, 4); + } + return status; +} + +int VL6180X::VL6180x_UpdateByte(VL6180xDev_t dev, uint16_t index, uint8_t AndData, uint8_t OrData) +{ + int status; + uint8_t buffer; + + status=VL6180x_I2CWrite(Device->I2cAddr, index, (uint8_t *)buffer,(uint8_t)0); + if(!status) + { + /* read data direct onto buffer */ + status=VL6180x_I2CRead(Device->I2cAddr, index, &buffer,1); + if(!status) + { + buffer=(buffer & AndData)|OrData; + status=VL6180x_I2CWrite(Device->I2cAddr, index, &buffer, (uint8_t)1); + } + } + return status; +} + +int VL6180X::VL6180x_I2CWrite(uint8_t DeviceAddr, uint16_t RegisterAddr, uint8_t* pBuffer, uint16_t NumByteToWrite) +{ + int ret; + int i; + uint8_t tmp[TEMP_BUF_SIZE]; + uint16_t myRegisterAddr = RegisterAddr; + uint16_t WriteDeviceAddr=0; + + /* First, prepare 8 bits device address in 7bits i2ci format */ + WriteDeviceAddr=DeviceAddr*2; + if(NumByteToWrite >= TEMP_BUF_SIZE) return -2; + + /* then prepare 16 bits register address in BE format. Then, send data and STOP condition */ + tmp[0] = *(((uint8_t*)&myRegisterAddr)+1); + tmp[1] = (uint8_t)RegisterAddr; + + if(NumByteToWrite>1) /* swap data endianess */ + { + for(i=0;i<NumByteToWrite;i++) + { + tmp[NumByteToWrite+sizeof(RegisterAddr)-1-i]=pBuffer[i]; + } + } + else + { + memcpy(tmp+sizeof(RegisterAddr), pBuffer, NumByteToWrite); + } + ret = dev_i2c.write(WriteDeviceAddr, (const char*)tmp, NumByteToWrite+sizeof(RegisterAddr), false); + + if(ret) + return -1; + return 0; +} + +int VL6180X::VL6180x_I2CRead(uint8_t DeviceAddr, uint16_t RegisterAddr, uint8_t* pBuffer, uint16_t NumByteToRead) +{ + int ret,i; + uint8_t tmp[TEMP_BUF_SIZE]; + uint16_t myRegisterAddr = RegisterAddr; + uint16_t myRegisterAddrBE; + uint16_t ReadDeviceAddr=DeviceAddr; + + ReadDeviceAddr=DeviceAddr*2; + myRegisterAddrBE = *(((uint8_t*)&myRegisterAddr)+1); + *(((uint8_t*)&myRegisterAddrBE)+1) = (uint8_t)myRegisterAddr; + + /* Send 8 bits device address and 16 bits register address in BE format, with no STOP condition */ + ret = dev_i2c.write(ReadDeviceAddr, (const char*)&myRegisterAddrBE, sizeof(RegisterAddr), true); + if(!ret) + { + ReadDeviceAddr|=0x001; + /* Read data, with STOP condition */ + ret = dev_i2c.read(ReadDeviceAddr, (char*)tmp, NumByteToRead, false); + } + if(ret) + return -1; + + if(NumByteToRead>1) /* swap data endianess */ + { + for(i=0;i<NumByteToRead;i++) + { + pBuffer[i] = tmp[NumByteToRead-1-i]; + } + } + else + { + memcpy(pBuffer, tmp, NumByteToRead); + } + return 0; +} + +/******************************************************************************/ + +int VL6180X::AlsSetThresholds(uint16_t lux_threshold_low, uint16_t lux_threshold_high) +{ + uint32_t AlsAnGain, IntPeriod, AlsScaler, GainFix, RawAlsHigh, RawAlsLow; + uint16_t RawThreshLow, RawThreshHigh; + const uint32_t LuxResxIntIme =(uint32_t)(0.56f* DEF_INT_PEFRIOD *(1<<LUXRES_FIX_PREC)); + void *p_low; + void *p_high; + + AlsAnGain=VL6180xDevDataGet(Device, AlsGainCode); + IntPeriod=VL6180xDevDataGet(Device, IntegrationPeriod); + AlsScaler=VL6180xDevDataGet(Device, AlsScaler); + GainFix=AlsGainLookUp[AlsAnGain]; + IntPeriod++; + RawAlsLow=lux_threshold_low*AlsScaler*GainFix; + RawAlsLow=RawAlsLow*IntPeriod; + RawAlsLow=RawAlsLow/LuxResxIntIme; + RawAlsHigh=lux_threshold_high*(AlsScaler*GainFix); + RawAlsHigh=RawAlsHigh*IntPeriod; + RawAlsHigh=RawAlsHigh/LuxResxIntIme; + p_low=&RawAlsLow; + RawThreshLow=*(uint16_t*)p_low; + p_high=&RawAlsHigh; + RawThreshHigh=*(uint16_t*)p_high; + return VL6180x_AlsSetThresholds(Device, RawThreshLow, RawThreshHigh); +} + + +int VL6180X::ReadID() +{ + int status; + uint8_t rl_id=0; + + status=VL6180x_RdByte(Device, IDENTIFICATION_MODEL_ID, &rl_id); + if((status==0)&&(rl_id==0xB4)) + return status; + else + return INVALID_PARAMS; +} + + +int VL6180X::InitSensor(uint8_t NewAddr) +{ + int status; + + VL6180x_Off(); + VL6180x_On(); + status=VL6180x_WaitDeviceBooted(Device); + if(status) + VL6180x_ErrLog("WaitDeviceBooted fail\n\r"); + status=IsPresent(); + if(!status) + { + Device->Present=1; + status=Init(); + if(status) + { + printf("Failed to init VL6180X sensor!\n\r"); + return status; + } + status=Prepare(); + if(status) + { + printf("Failed to prepare VL6180X!\n\r"); + return status; + } + if(NewAddr!=DEFAULT_DEVICE_ADDRESS) + { + status=SetI2CAddress(NewAddr); + if(status) + { + printf("Failed to change I2C address!\n\r"); + return status; + } + } + else + { + printf("Invalid new address!\n\r"); + return INVALID_PARAMS; + } + Device->Ready=1; + } + return status; +} + + +int VL6180X::StartMeasurement(OperatingMode operating_mode, void (*fptr)(void), uint16_t low, uint16_t high) +{ + int status, r_status, l_status; + + switch(operating_mode) + { + case(range_single_shot_polling): + r_status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY); + l_status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + return RangeMeasPollSingleShot(); + else + return (r_status|l_status); + + case(als_single_shot_polling): + r_status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY); + l_status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + return AlsMeasPollSingleShot(); + else + return (r_status|l_status); + + case(range_continuous_polling): + r_status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY); + l_status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + return RangeMeasPollContinuousMode(); + else + return (r_status|l_status); + + case(als_continuous_polling): + r_status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY); + l_status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + return AlsMeasPollContinuousMode(); + else + return (r_status|l_status); + + case(range_continuous_interrupt): + r_status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY); + l_status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + return RangeMeasIntContinuousMode(fptr); + else + return (r_status|l_status); + + case(als_continuous_interrupt): + l_status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY); + r_status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + return AlsMeasIntContinuousMode(fptr); + else + return (r_status|l_status); + + case(interleaved_mode_interrupt): + l_status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY); + r_status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + return InterleavedMode(fptr); + else + return (r_status|l_status); + + case(range_continuous_polling_low_threshold): + r_status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_LEVEL_LOW); + l_status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + { + status=RangeSetLowThreshold(low); + if(!status) + return RangeMeasPollContinuousMode(); + else + return status; + } + else + return (r_status|l_status); + + case(range_continuous_polling_high_threshold): + status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_LEVEL_HIGH); + status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + { + status=RangeSetHighThreshold(high); + if(!status) + return RangeMeasPollContinuousMode(); + else + return status; + } + else + return (r_status|l_status); + + case(range_continuous_polling_out_of_window): + status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_OUT_OF_WINDOW); + status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + { + status=VL6180x_RangeSetThresholds(Device,low,high,1); + if(!status) + return RangeMeasPollContinuousMode(); + else + return status; + } + else + return (r_status|l_status); + + case(als_continuous_polling_low_threshold): + status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_LEVEL_LOW); + status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + { + status=AlsSetLowThreshold(low); + if(!status) + return AlsMeasPollContinuousMode(); + else + return status; + } + else + return (r_status|l_status); + + case(als_continuous_polling_high_threshold): + status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_LEVEL_HIGH); + status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + { + status=AlsSetHighThreshold(high); + if(!status) + return AlsMeasPollContinuousMode(); + else + return status; + } + else + return (r_status|l_status); + + case(als_continuous_polling_out_of_window): + status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_OUT_OF_WINDOW); + status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + { + status=VL6180x_AlsSetThresholds(Device,low,high); + if(!status) + return AlsMeasPollContinuousMode(); + else + return status; + } + else + return (r_status|l_status); + + case(range_continuous_interrupt_low_threshold): + status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_LEVEL_LOW); + status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + { + status=RangeSetLowThreshold(low); + if(!status) + return RangeMeasIntContinuousMode(fptr); + else + return status; + } + else + return (r_status|l_status); + + case(range_continuous_interrupt_high_threshold): + status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_LEVEL_HIGH); + status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + { + status=RangeSetHighThreshold(high); + if(!status) + return RangeMeasIntContinuousMode(fptr); + else + return status; + } + else + return (r_status|l_status); + + case(range_continuous_interrupt_out_of_window): + status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_OUT_OF_WINDOW); + status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + { + status=VL6180x_RangeSetThresholds(Device,low,high,1); + if(!status) + return RangeMeasIntContinuousMode(fptr); + else + return status; + } + else + return (r_status|l_status); + + case(als_continuous_interrupt_low_threshold): + status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_LEVEL_LOW); + status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + { + status=AlsSetLowThreshold(low); + if(!status) + return AlsMeasIntContinuousMode(fptr); + else + return status; + } + else + return (r_status|l_status); + + case(als_continuous_interrupt_high_threshold): + status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_LEVEL_HIGH); + status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + { + status=AlsSetHighThreshold(high); + if(!status) + return AlsMeasIntContinuousMode(fptr); + else + return status; + } + else + return (r_status|l_status); + + case(als_continuous_interrupt_out_of_window): + status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_OUT_OF_WINDOW); + status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if((!r_status)&&(!l_status)) + { + status=VL6180x_AlsSetThresholds(Device,low,high); + if(!status) + return AlsMeasIntContinuousMode(fptr); + else + return status; + } + else + return (r_status|l_status); + + default: + return INVALID_PARAMS; + } +} + + +int VL6180X::GetRangeError(MeasureData_t *Data, VL6180x_RangeData_t RangeData) +{ + Data->range_error=RangeData.errorStatus; + if(Data->range_error!=0) + { + VL6180x_ErrLog("Range error %d",Data->range_error); + return RANGE_ERROR; + } + return NoError_; +} + + +int VL6180X::GetAlsError(MeasureData_t *Data, VL6180x_AlsData_t AlsData) +{ + Data->als_error=AlsData.errorStatus; + if(Data->als_error!=0) + { + VL6180x_ErrLog("Light error %d",Data->light_error); + return API_ERROR; + } + return NoError_; +} + + +int VL6180X::RangeMeasPollSingleShot() +{ + int status; + + status=VL6180x_RangeClearInterrupt(Device); + if(status) + { + VL6180x_ErrLog("VL6180x_RangeClearInterrupt fail"); + return status; + } + status=VL6180x_ClearErrorInterrupt(Device); + if(status) + { + VL6180x_ErrLog("VL6180x_ClearErrorInterrupt fail"); + return status; + } + return RangeStartSingleShot(); +} + + +int VL6180X::AlsMeasPollSingleShot() +{ + int status; + + status=VL6180x_AlsClearInterrupt(Device); + if(status) + { + VL6180x_ErrLog("VL6180x_AlsClearInterrupt fail"); + return status; + } + status=VL6180x_ClearErrorInterrupt(Device); + if(status) + { + VL6180x_ErrLog("VL6180x_ClearErrorInterrupt fail"); + return status; + } + return AlsStartSingleShot(); +} + + +int VL6180X::RangeMeasPollContinuousMode() +{ + int status; + + status=VL6180x_RangeClearInterrupt(Device); + if(status) + { + VL6180x_ErrLog("VL6180x_RangeClearInterrupt fail"); + return status; + } + status=VL6180x_ClearErrorInterrupt(Device); + if(status) + { + VL6180x_ErrLog("VL6180x_ClearErrorInterrupt fail"); + return status; + } + return RangeStartContinuousMode(); +} + + +int VL6180X::AlsMeasPollContinuousMode() +{ + int status; + + status=VL6180x_AlsClearInterrupt(Device); + if(status) + { + VL6180x_ErrLog("VL6180x_AlsClearInterrupt fail"); + return status; + } + status=VL6180x_ClearErrorInterrupt(Device); + if(status) + { + VL6180x_ErrLog("VL6180x_ClearErrorInterrupt fail"); + return status; + } + return AlsStartContinuousMode(); +} + + +int VL6180X::AlsGetMeasurementIfReady(VL6180xDev_t dev, VL6180x_AlsData_t *pAlsData) +{ + int status; + uint8_t IntStatus; + + status=VL6180x_AlsGetInterruptStatus(dev, &IntStatus); + if(!status) + { + if(IntStatus==RES_INT_STAT_GPIO_NEW_SAMPLE_READY) + { + status = VL6180x_AlsGetMeasurement(dev, pAlsData); + if(!status) + { + status=VL6180x_AlsClearInterrupt(Device); + if(status) + VL6180x_ErrLog("VL6180x_AlsClearInterrupt fail"); + } + } + else + status=NOT_READY; + } + else + VL6180x_ErrLog("Failed to get interrupt status"); + return status; +} + + +int VL6180X::RangeMeasIntContinuousMode(void (*fptr)(void)) +{ + int status, ClrStatus; + + EnableInterruptMeasureDetectionIRQ(); + AttachInterruptMeasureDetectionIRQ(fptr); + status=SetupGPIO1(GPIOx_SELECT_GPIO_INTERRUPT_OUTPUT, 1); + ClrStatus=VL6180x_ClearAllInterrupt(Device); + if(ClrStatus) + VL6180x_ErrLog("VL6180x_ClearErrorInterrupt fail"); + if(!status) + status=RangeStartContinuousMode(); + return status; +} + + +int VL6180X::AlsMeasIntContinuousMode(void (*fptr)(void)) +{ + int status, ClrStatus; + + EnableInterruptMeasureDetectionIRQ(); + AttachInterruptMeasureDetectionIRQ(fptr); + status=SetupGPIO1(GPIOx_SELECT_GPIO_INTERRUPT_OUTPUT, 1); + ClrStatus=VL6180x_ClearAllInterrupt(Device); + if(ClrStatus) + VL6180x_ErrLog("VL6180x_ClearErrorInterrupt fail"); + if(!status) + status=AlsStartContinuousMode(); + return status; +} + + +int VL6180X::StartInterleavedMode() +{ + int status; + uint16_t integration_period, intermeasurement_period_ms; + uint8_t max_convergence_time; + uint8_t buf; + + status=VL6180x_WrByte(Device, 0x2A3, 1); + if(status) + { + VL6180x_ErrLog("Failed to write INTERLEAVED_MODE_ENABLE!\n\r"); + return status; + } + status=VL6180x_RdByte(Device, SYSRANGE_MAX_CONVERGENCE_TIME, &max_convergence_time); + if(status) + { + VL6180x_ErrLog("Failed to read SYSRANGE_MAX_CONVERGENCE_TIME!\n\r"); + return status; + } + status=VL6180x_RdWord(Device, SYSALS_INTEGRATION_PERIOD, &integration_period); + if(status) + { + VL6180x_ErrLog("Failed to read SYSALS_INTEGRATION_PERIOD!\n\r"); + return status; + } + max_convergence_time&=0x3F; + integration_period&=0x01FF; + intermeasurement_period_ms=((max_convergence_time+5)+(integration_period*1.1)); + intermeasurement_period_ms=(intermeasurement_period_ms/0.9)+10; + intermeasurement_period_ms=200; + status=VL6180x_AlsSetInterMeasurementPeriod(Device, intermeasurement_period_ms); + VL6180x_RdByte(Device, 0x03E, &buf); + if(status) + { + VL6180x_ErrLog("Failed to write SYSALS_INTERMEASUREMENT_PERIOD!\n\r"); + return status; + } + return AlsStartContinuousMode(); +} + + +int VL6180X::InterleavedMode(void (*fptr)(void)) +{ + int status, ClrStatus; + + EnableInterruptMeasureDetectionIRQ(); + AttachInterruptMeasureDetectionIRQ(fptr); + status=SetupGPIO1(GPIOx_SELECT_GPIO_INTERRUPT_OUTPUT, 1); + ClrStatus=VL6180x_ClearAllInterrupt(Device); + if(ClrStatus) + VL6180x_ErrLog("VL6180x_ClearErrorInterrupt fail"); + if(!status) + status=StartInterleavedMode(); + return status; +} + + +int VL6180X::HandleIRQ(OperatingMode operating_mode, MeasureData_t *Data) +{ + int status; + + EnableInterruptMeasureDetectionIRQ(); + status=GetMeasurement(operating_mode, Data); + return status; +} + + +int VL6180X::RangeSetLowThreshold(uint16_t threshold) +{ + int status; + uint16_t low, high; + + status=VL6180x_RangeGetThresholds(Device, &low, &high); + if(!status) + status=VL6180x_RangeSetThresholds(Device, threshold, high, 1); + return status; +} + + +int VL6180X::RangeSetHighThreshold(uint16_t threshold) +{ + int status; + uint16_t low, high; + + status=VL6180x_RangeGetThresholds(Device, &low, &high); + if(!status) + status=VL6180x_RangeSetThresholds(Device, low, threshold, 1); + return status; +} + + +int VL6180X::AlsSetLowThreshold(uint16_t threshold) +{ + int status; + lux_t low, high; + + status=AlsGetThresholds(Device, &low, &high); + if(!status) + status=VL6180x_AlsSetThresholds(Device, threshold, high); + return status; +} + + +int VL6180X::AlsSetHighThreshold(uint16_t threshold) +{ + int status; + lux_t low, high; + + status=AlsGetThresholds(Device, &low, &high); + if(!status) + status=VL6180x_AlsSetThresholds(Device, low, threshold); + return status; +} + + +int VL6180X::AlsGetThresholds(VL6180xDev_t dev, lux_t *low, lux_t *high) +{ + int status; + uint16_t RawAlsLow, RawAlsHigh; + uint32_t luxLowValue, luxHighValue, IntPeriod, AlsAnGain, GainFix, AlsScaler; + const uint32_t LuxResxIntIme =(uint32_t)(0.56f* DEF_INT_PEFRIOD *(1<<LUXRES_FIX_PREC)); + + status=VL6180x_RdWord(dev, SYSALS_THRESH_LOW, &RawAlsLow); + if(status) + { + VL6180x_ErrLog("rd SYSALS_THRESH_LOW fail"); + return status; + } + status=VL6180x_RdWord(dev, SYSALS_THRESH_HIGH, &RawAlsHigh); + if(status) + { + VL6180x_ErrLog("rd SYSALS_THRESH_HIGH fail"); + return status; + } + AlsAnGain=VL6180xDevDataGet(dev, AlsGainCode); + IntPeriod=VL6180xDevDataGet(dev, IntegrationPeriod); + AlsScaler=VL6180xDevDataGet(dev, AlsScaler); + GainFix=AlsGainLookUp[AlsAnGain]; + IntPeriod++; + luxLowValue=(uint32_t)RawAlsLow*LuxResxIntIme; + luxLowValue=luxLowValue/IntPeriod; + luxLowValue=luxLowValue/(AlsScaler*GainFix); + luxHighValue=(uint32_t)RawAlsHigh*LuxResxIntIme; + luxHighValue=luxHighValue/IntPeriod; + luxHighValue=luxHighValue/(AlsScaler*GainFix); + *low=luxLowValue; + *high=luxHighValue; + return status; +} + + +int VL6180X::GetMeasurement(OperatingMode operating_mode, MeasureData_t *Data) +{ + switch(operating_mode) + { + case(range_single_shot_polling): + case(range_continuous_polling): + case(range_continuous_interrupt): + case(range_continuous_polling_low_threshold): + case(range_continuous_polling_high_threshold): + case(range_continuous_polling_out_of_window): + case(range_continuous_interrupt_low_threshold): + case(range_continuous_interrupt_high_threshold): + case(range_continuous_interrupt_out_of_window): + return GetRangeMeas(operating_mode, Data); + + case(als_single_shot_polling): + case(als_continuous_polling): + case(als_continuous_interrupt): + case(als_continuous_polling_low_threshold): + case(als_continuous_polling_high_threshold): + case(als_continuous_polling_out_of_window): + case(als_continuous_interrupt_low_threshold): + case(als_continuous_interrupt_high_threshold): + case(als_continuous_interrupt_out_of_window): + return GetAlsMeas(operating_mode, Data); + + case(interleaved_mode_interrupt): + return GetRangeAlsMeas(Data); + + default: + return INVALID_PARAMS; + } +} + + +int VL6180X::GetRangeMeas(OperatingMode operating_mode, MeasureData_t *Data) +{ + VL6180x_RangeData_t RangeData; + int status, ClrStatus; + IntrStatus_t IntStatus; + + status=VL6180x_RangeGetInterruptStatus(Device, &IntStatus.val); + if(!status) + { + Data->int_error=IntStatus.status.Error; + if(IntStatus.status.Error!=0) + { + VL6180x_ErrLog("GPIO int Error report %d",(int)IntStatus.val); + status=RANGE_ERROR; + } + } + else + { + VL6180x_ErrLog("Failed to read RESULT_INTERRUPT_STATUS_GPIO"); + } + ClrStatus=VL6180x_RangeClearInterrupt(Device); + if(ClrStatus) + { + VL6180x_ErrLog("VL6180x_RangeClearInterrupt fail"); + } + ClrStatus=VL6180x_ClearErrorInterrupt(Device); + if(ClrStatus) + { + VL6180x_ErrLog("VL6180x_ClearErrorInterrupt fail"); + } + if(status) + return status; + if((operating_mode==range_single_shot_polling)||(operating_mode==range_continuous_polling)||(operating_mode==range_continuous_interrupt)) + { + if(IntStatus.status.Range==RES_INT_STAT_GPIO_NEW_SAMPLE_READY) + status=VL6180x_RangeGetMeasurement(Device, &RangeData); + else + return NOT_READY; + } + else if((operating_mode==range_continuous_polling_low_threshold)||(operating_mode==range_continuous_interrupt_low_threshold)) + { + if(IntStatus.status.Range==RES_INT_STAT_GPIO_LOW_LEVEL_THRESHOLD) + status=VL6180x_RangeGetMeasurement(Device, &RangeData); + else + return NOT_READY; + } + else if((operating_mode==range_continuous_polling_high_threshold)||(operating_mode==range_continuous_interrupt_high_threshold)) + { + if(IntStatus.status.Range==RES_INT_STAT_GPIO_HIGH_LEVEL_THRESHOLD) + status=VL6180x_RangeGetMeasurement(Device, &RangeData); + else + return NOT_READY; + } + else if((operating_mode==range_continuous_polling_out_of_window)||(operating_mode==range_continuous_interrupt_out_of_window)) + { + if(IntStatus.status.Range==RES_INT_STAT_GPIO_OUT_OF_WINDOW) + status=VL6180x_RangeGetMeasurement(Device, &RangeData); + else + return NOT_READY; + } + if(!status) + { + status=GetRangeError(Data, RangeData); + if(!status) + Data->range_mm=RangeData.range_mm; + else + Data->range_mm=0xFFFFFFFF; + } + return status; +} + + +int VL6180X::GetAlsMeas(OperatingMode operating_mode, MeasureData_t *Data) +{ + VL6180x_AlsData_t AlsData; + int status, ClrStatus; + uint8_t IntStatus; + + status=VL6180x_AlsGetInterruptStatus(Device, &IntStatus); + if(status) + { + VL6180x_ErrLog("Failed to read RESULT_INTERRUPT_STATUS_GPIO"); + } + ClrStatus=VL6180x_AlsClearInterrupt(Device); + if(ClrStatus) + { + VL6180x_ErrLog("VL6180x_AlsClearInterrupt fail"); + } + ClrStatus=VL6180x_ClearErrorInterrupt(Device); + if(ClrStatus) + { + VL6180x_ErrLog("VL6180x_ClearErrorInterrupt fail"); + } + if(status) + return status; + if((operating_mode==als_single_shot_polling)||(operating_mode==als_continuous_polling)||(operating_mode==als_continuous_interrupt)) + { + if(IntStatus==RES_INT_STAT_GPIO_NEW_SAMPLE_READY) + status=VL6180x_AlsGetMeasurement(Device, &AlsData); + else + return NOT_READY; + } + else if((operating_mode==als_continuous_polling_low_threshold)||(operating_mode==als_continuous_interrupt_low_threshold)) + { + if(IntStatus==RES_INT_STAT_GPIO_LOW_LEVEL_THRESHOLD) + status=VL6180x_AlsGetMeasurement(Device, &AlsData); + else + return NOT_READY; + } + else if((operating_mode==als_continuous_polling_high_threshold)||(operating_mode==als_continuous_interrupt_high_threshold)) + { + if(IntStatus==RES_INT_STAT_GPIO_HIGH_LEVEL_THRESHOLD) + status=VL6180x_AlsGetMeasurement(Device, &AlsData); + else + return NOT_READY; + } + else if((operating_mode==als_continuous_polling_out_of_window)||(operating_mode==als_continuous_interrupt_out_of_window)) + { + if(IntStatus==RES_INT_STAT_GPIO_OUT_OF_WINDOW) + status=VL6180x_AlsGetMeasurement(Device, &AlsData); + else + return NOT_READY; + } + if(!status) + { + status=GetAlsError(Data, AlsData); + if(!status) + Data->lux=AlsData.lux; + else + Data->lux=0xFFFFFFFF; + } + return status; +} + + +int VL6180X::GetRangeAlsMeas(MeasureData_t *Data) +{ + int status, ClrStatus, r_status, l_status; + IntrStatus_t IntStatus; + VL6180x_RangeData_t RangeData; + VL6180x_AlsData_t AlsData; + + status=VL6180x_RdByte(Device, RESULT_INTERRUPT_STATUS_GPIO, &IntStatus.val); + if(!status) + { + Data->int_error=IntStatus.status.Error; + if(IntStatus.status.Error!=0) + { + VL6180x_ErrLog("GPIO int Error report %d",(int)IntStatus.val); + status=RANGE_ERROR; + } + } + else + { + VL6180x_ErrLog("Failed to read RESULT_INTERRUPT_STATUS_GPIO"); + } + ClrStatus=VL6180x_ClearAllInterrupt(Device); + if(ClrStatus) + VL6180x_ErrLog("VL6180x_ClearAllInterrupt fail"); + if(status) + return status; + + if(IntStatus.status.Als==RES_INT_STAT_GPIO_NEW_SAMPLE_READY) + { + r_status=VL6180x_RangeGetMeasurement(Device, &RangeData); + l_status=VL6180x_AlsGetMeasurement(Device, &AlsData); + if((!r_status)&&(!l_status)) + { + r_status=GetRangeError(Data, RangeData); + l_status=GetAlsError(Data, AlsData); + if(!r_status) + Data->range_mm=RangeData.range_mm; + else + Data->range_mm=0xFFFFFFFF; + if(!l_status) + Data->lux=AlsData.lux; + else + Data->lux=0xFFFFFFFF; + status=r_status|l_status; + } + else + { + status=r_status|l_status; + } + } + else + return NOT_READY; + return status; +} + + +int VL6180X::StopMeasurement(OperatingMode operating_mode) +{ + int status; + + switch(operating_mode) + { + case(range_single_shot_polling): + case(range_continuous_polling): + case(range_continuous_interrupt): + case(range_continuous_polling_low_threshold): + case(range_continuous_polling_high_threshold): + case(range_continuous_polling_out_of_window): + case(range_continuous_interrupt_low_threshold): + case(range_continuous_interrupt_high_threshold): + case(range_continuous_interrupt_out_of_window): + return StopRangeMeasurement(operating_mode); + + case(als_single_shot_polling): + case(als_continuous_polling): + case(als_continuous_interrupt): + case(als_continuous_polling_low_threshold): + case(als_continuous_polling_high_threshold): + case(als_continuous_polling_out_of_window): + case(als_continuous_interrupt_low_threshold): + case(als_continuous_interrupt_high_threshold): + case(als_continuous_interrupt_out_of_window): + return StopAlsMeasurement(operating_mode); + + case(interleaved_mode_interrupt): + status=StopRangeMeasurement(range_continuous_interrupt); + if(!status) + return StopAlsMeasurement(als_continuous_interrupt); + else return status; + + default: + return INVALID_PARAMS; + } +} + + +int VL6180X::StopRangeMeasurement(OperatingMode operating_mode) +{ + int status; + + if(operating_mode==range_single_shot_polling) + status=VL6180x_RangeSetSystemMode(Device, MODE_SINGLESHOT); + else + status=VL6180x_RangeSetSystemMode(Device, MODE_START_STOP|MODE_SINGLESHOT); + if(status) + return status; + status=VL6180x_RangeConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if(status) + { + VL6180x_ErrLog("VL6180x_RangeConfigInterrupt fail"\n\r); + return status; + } + status=VL6180x_RangeClearInterrupt(Device); + if(status) + { + VL6180x_ErrLog("VL6180x_RangeClearInterrupt fail"); + return status; + } + status=VL6180x_ClearErrorInterrupt(Device); + if(status) + { + VL6180x_ErrLog("VL6180x_ClearErrorInterrupt fail"); + return status; + } + status=VL6180x_RangeSetRawThresholds(Device, 10, 200); + if(status) + VL6180x_ErrLog("VL6180x_RangeSetThresholds fail"); + return status; +} + + +int VL6180X::StopAlsMeasurement(OperatingMode operating_mode) +{ + int status; + + if(operating_mode==als_single_shot_polling) + status=VL6180x_AlsSetSystemMode(Device, MODE_SINGLESHOT); + else + status=VL6180x_AlsSetSystemMode(Device, MODE_START_STOP|MODE_SINGLESHOT); + if(status) + return status; + status=VL6180x_AlsConfigInterrupt(Device, CONFIG_GPIO_INTERRUPT_DISABLED); + if(status) + { + VL6180x_ErrLog("VL6180x_AlsConfigInterrupt fail"\n\r); + return status; + } + status=VL6180x_AlsClearInterrupt(Device); + if(status) + { + VL6180x_ErrLog("VL6180x_AlsClearInterrupt fail"); + return status; + } + status=VL6180x_ClearErrorInterrupt(Device); + if(status) + { + VL6180x_ErrLog("VL6180x_ClearErrorInterrupt fail"); + return status; + } + status=VL6180x_AlsSetThresholds(Device, 0x0, 1800); + if(status) + VL6180x_ErrLog("VL6180x_AlsSetThresholds fail"); + return status; +} + + + + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ \ No newline at end of file
diff -r 000000000000 -r 1cb50d31c3b5 VL6180X/vl6180x_class.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/VL6180X/vl6180x_class.h Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,1162 @@ +/** + ****************************************************************************** + * @file vl6180x_class.h + * @author AST / EST + * @version V0.0.1 + * @date 9-November-2015 + * @brief Header file for component VL6180X + ****************************************************************************** + * @attention + * + * <h2><center>© COPYRIGHT(c) 2015 STMicroelectronics</center></h2> + * + * 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 STMicroelectronics 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. + * + ****************************************************************************** +*/ + +#ifndef __VL6180X_CLASS_H +#define __VL6180X_CLASS_H + +/* Includes ------------------------------------------------------------------*/ +#include "RangeSensor.h" +#include "LightSensor.h" +#include "DevI2C.h" +//#include "vl6180x_api.h" +#include "vl6180x_cfg.h" +#include "vl6180x_def.h" +#include "vl6180x_types.h" +#include "vl6180x_platform.h" + + + +/* data struct containing range measure, light measure and type of error provided to the user + in case of invalid data range_mm=0xFFFFFFFF and lux=0xFFFFFFFF */ +typedef struct MeasureData +{ + uint32_t range_mm; + uint32_t lux; + uint32_t range_error; + uint32_t als_error; + uint32_t int_error; +}MeasureData_t; + +/* sensor operating modes */ +typedef enum +{ + range_single_shot_polling=1, + als_single_shot_polling, + range_continuous_polling, + als_continuous_polling, + range_continuous_interrupt, + als_continuous_interrupt, + interleaved_mode_interrupt, + range_continuous_polling_low_threshold, + range_continuous_polling_high_threshold, + range_continuous_polling_out_of_window, + als_continuous_polling_low_threshold, + als_continuous_polling_high_threshold, + als_continuous_polling_out_of_window, + range_continuous_interrupt_low_threshold, + range_continuous_interrupt_high_threshold, + range_continuous_interrupt_out_of_window, + als_continuous_interrupt_low_threshold, + als_continuous_interrupt_high_threshold, + als_continuous_interrupt_out_of_window, + range_continuous_als_single_shot, + range_single_shot_als_continuous, +}OperatingMode; + +/** default device address */ +#define DEFAULT_DEVICE_ADDRESS 0x29 + +/* Classes -------------------------------------------------------------------*/ +/** Class representing a VL6180X sensor component + */ +class VL6180X : public RangeSensor, public LightSensor +{ + public: + /** Constructor 1 + * @param[in] &i2c device I2C to be used for communication + * @param[in] &pin Mbed DigitalOut pin to be used as component GPIO_0 CE + * @param[in] pin_gpio1 pin Mbed InterruptIn PinName to be used as component GPIO_1 INT + * @param[in] DevAddr device address, 0x29 by default + */ + VL6180X(DevI2C &i2c, uint8_t DevAddr=DEFAULT_DEVICE_ADDRESS) : RangeSensor(), LightSensor(), dev_i2c(i2c) + { + MyDevice.I2cAddr=DevAddr; + MyDevice.Present=0; + MyDevice.Ready=0; + Device=&MyDevice;; + } + + /** Destructor + */ + virtual ~VL6180X(){} + /* warning: VL6180X class inherits from GenericSensor, RangeSensor and LightSensor, that haven`t a destructor. + The warning should request to introduce a virtual destructor to make sure to delete the object */ + + /*** Interface Methods ***/ + /*** High level API ***/ + /** + * @brief PowerOn the sensor + * @return void + */ + /* turns on the sensor */ + void VL6180x_On(void) + { + } + + /** + * @brief PowerOff the sensor + * @return void + */ + /* turns off the sensor */ + void VL6180x_Off(void) + { + } + + /** + * @brief Initialize the sensor with default values + * @return 0 on Success + */ + int InitSensor(uint8_t NewAddr); + + /** + * @brief Start the measure indicated by operating mode + * @param[in] operating_mode specifies requested measure + * @param[in] fptr specifies call back function must be !NULL in case of interrupt measure + * @param[in] low specifies measure low threashold in Lux or in mm according to measure + * @param[in] high specifies measure high threashold in Lux or in mm according to measure + * @return 0 on Success + */ + int StartMeasurement(OperatingMode operating_mode, void (*fptr)(void), uint16_t low, uint16_t high); + + /** + * @brief Get results for the measure indicated by operating mode + * @param[in] operating_mode specifies requested measure results + * @param[out] Data pointer to the MeasureData_t structure to read data in to + * @return 0 on Success + */ + int GetMeasurement(OperatingMode operating_mode, MeasureData_t *Data); + + /** + * @brief Stop the currently running measure indicate by operating_mode + * @param[in] operating_mode specifies requested measure to stop + * @return 0 on Success + */ + int StopMeasurement(OperatingMode operating_mode); + + /** + * @brief Interrupt handling func to be called by user after an INT is occourred + * @param[in] opeating_mode indicating the in progress measure + * @param[out] Data pointer to the MeasureData_t structure to read data in to + * @return 0 on Success + */ + int HandleIRQ(OperatingMode operating_mode, MeasureData_t *Data); + + /** + * @brief Enable interrupt measure IRQ + * @return 0 on Success + */ + void EnableInterruptMeasureDetectionIRQ(void) + { + } + + /** + * @brief Disable interrupt measure IRQ + * @return 0 on Success + */ + void DisableInterruptMeasureDetectionIRQ(void) + { + } + /*** End High level API ***/ + + /** + * @brief Attach a function to call when an interrupt is detected, i.e. measurement is ready + * @param[in] fptr pointer to call back function to be called whenever an interrupt occours + * @return 0 on Success + */ + void AttachInterruptMeasureDetectionIRQ(void (*fptr)(void)) + { + } + + /** + * @brief Check the sensor presence + * @return 1 when device is present + */ + unsigned Present() + { + return Device->Present; + } + + /** Wrapper functions */ +/** @defgroup api_init Init functions + * @brief API init functions + * @ingroup api_hl + * @{ + */ +/** + * @brief Wait for device booted after chip enable (hardware standby) + * @par Function Description + * After Chip enable Application you can also simply wait at least 1ms to ensure device is ready + * @warning After device chip enable (gpio0) de-asserted user must wait gpio1 to get asserted (hardware standby). + * or wait at least 400usec prior to do any low level access or api call . + * + * This function implements polling for standby but you must ensure 400usec from chip enable passed\n + * @warning if device get prepared @a VL6180x_Prepare() re-using these function can hold indefinitely\n + * + * @param void + * @return 0 on success + */ + int WaitDeviceBooted() + { + return VL6180x_WaitDeviceBooted(Device); + } + +/** + * + * @brief One time device initialization + * + * To be called once and only once after device is brought out of reset (Chip enable) and booted see @a VL6180x_WaitDeviceBooted() + * + * @par Function Description + * When not used after a fresh device "power up" or reset, it may return @a #CALIBRATION_WARNING + * meaning wrong calibration data may have been fetched from device that can result in ranging offset error\n + * If application cannot execute device reset or need to run VL6180x_InitData multiple time + * then it must ensure proper offset calibration saving and restore on its own + * by using @a VL6180x_GetOffsetCalibrationData() on first power up and then @a VL6180x_SetOffsetCalibrationData() all all subsequent init + * + * @param void + * @return 0 on success, @a #CALIBRATION_WARNING if failed + */ + virtual int Init() + { + return VL6180x_InitData(Device); + } + +/** + * @brief Configure GPIO1 function and set polarity. + * @par Function Description + * To be used prior to arm single shot measure or start continuous mode. + * + * The function uses @a VL6180x_SetupGPIOx() for setting gpio 1. + * @warning changing polarity can generate a spurious interrupt on pins. + * It sets an interrupt flags condition that must be cleared to avoid polling hangs. \n + * It is safe to run VL6180x_ClearAllInterrupt() just after. + * + * @param IntFunction The interrupt functionality to use one of :\n + * @a #GPIOx_SELECT_OFF \n + * @a #GPIOx_SELECT_GPIO_INTERRUPT_OUTPUT + * @param ActiveHigh The interrupt line polarity see ::IntrPol_e + * use @a #INTR_POL_LOW (falling edge) or @a #INTR_POL_HIGH (rising edge) + * @return 0 on success + */ + int SetupGPIO1(uint8_t InitFunction, int ActiveHigh) + { + return VL6180x_SetupGPIO1(Device, InitFunction, ActiveHigh); + } + +/** + * @brief Prepare device for operation + * @par Function Description + * Does static initialization and reprogram common default settings \n + * Device is prepared for new measure, ready single shot ranging or ALS typical polling operation\n + * After prepare user can : \n + * @li Call other API function to set other settings\n + * @li Configure the interrupt pins, etc... \n + * @li Then start ranging or ALS operations in single shot or continuous mode + * + * @param void + * @return 0 on success + */ + int Prepare() + { + return VL6180x_Prepare(Device); + } + + /** + * @brief Start continuous ranging mode + * + * @details End user should ensure device is in idle state and not already running + * @return 0 on success + */ + int RangeStartContinuousMode() + { + return VL6180x_RangeStartContinuousMode(Device); + } + +/** + * @brief Start single shot ranging measure + * + * @details End user should ensure device is in idle state and not already running + * @return 0 on success + */ + int RangeStartSingleShot() + { + return VL6180x_RangeStartSingleShot(Device); + } + +/** + * @brief Set maximum convergence time + * + * @par Function Description + * Setting a low convergence time can impact maximal detectable distance. + * Refer to VL6180x Datasheet Table 7 : Typical range convergence time. + * A typical value for up to x3 scaling is 50 ms + * + * @param MaxConTime_msec + * @return 0 on success. <0 on error. >0 for calibration warning status + */ + int RangeSetMaxConvergenceTime(uint8_t MaxConTime_msec) + { + return VL6180x_RangeSetMaxConvergenceTime(Device, MaxConTime_msec); + } + +/** + * @brief Single shot Range measurement in polling mode. + * + * @par Function Description + * Kick off a new single shot range then wait for ready to retrieve it by polling interrupt status \n + * Ranging must be prepared by a first call to @a VL6180x_Prepare() and it is safer to clear very first poll call \n + * This function reference VL6180x_PollDelay(dev) porting macro/call on each polling loop, + * but PollDelay(dev) may never be called if measure in ready on first poll loop \n + * Should not be use in continuous mode operation as it will stop it and cause stop/start misbehaviour \n + * \n This function clears Range Interrupt status , but not error one. For that uses @a VL6180x_ClearErrorInterrupt() \n + * This range error is not related VL6180x_RangeData_t::errorStatus that refer measure status \n + * + * @param pRangeData Will be populated with the result ranging data @a VL6180x_RangeData_t + * @return 0 on success , @a #RANGE_ERROR if device reports an error case in it status (not cleared) use + * + * \sa ::VL6180x_RangeData_t + */ + int RangePollMeasurement(VL6180x_RangeData_t *pRangeData) + { + return VL6180x_RangePollMeasurement(Device, pRangeData); + } + +/** + * @brief Check for measure readiness and get it if ready + * + * @par Function Description + * Using this function is an alternative to @a VL6180x_RangePollMeasurement() to avoid polling operation. This is suitable for applications + * where host CPU is triggered on a interrupt (not from VL6180X) to perform ranging operation. In this scenario, we assume that the very first ranging + * operation is triggered by a call to @a VL6180x_RangeStartSingleShot(). Then, host CPU regularly calls @a VL6180x_RangeGetMeasurementIfReady() to + * get a distance measure if ready. In case the distance is not ready, host may get it at the next call.\n + * + * @warning + * This function does not re-start a new measurement : this is up to the host CPU to do it.\n + * This function clears Range Interrupt for measure ready , but not error interrupts. For that, uses @a VL6180x_ClearErrorInterrupt() \n + * + * @param pRangeData Will be populated with the result ranging data if available + * @return 0 when measure is ready pRange data is updated (untouched when not ready), >0 for warning and @a #NOT_READY if measurement not yet ready, <0 for error @a #RANGE_ERROR if device report an error, + */ + int RangeGetMeasurementIfReady(VL6180x_RangeData_t *pRangeData) + { + return VL6180x_RangeGetMeasurementIfReady(Device, pRangeData); + } + +/** + * @brief Retrieve range measurements set from device + * + * @par Function Description + * The measurement is made of range_mm status and error code @a VL6180x_RangeData_t \n + * Based on configuration selected extra measures are included. + * + * @warning should not be used in continuous if wrap around filter is active \n + * Does not perform any wait nor check for result availability or validity. + *\sa VL6180x_RangeGetResult for "range only" measurement + * + * @param pRangeData Pointer to the data structure to fill up + * @return 0 on success + */ + int RangeGetMeasurement(VL6180x_RangeData_t *pRangeData) + { + return VL6180x_RangeGetMeasurement(Device, pRangeData); + } + +/** + * @brief Get ranging result and only that + * + * @par Function Description + * Unlike @a VL6180x_RangeGetMeasurement() this function only retrieves the range in millimeter \n + * It does any required up-scale translation\n + * It can be called after success status polling or in interrupt mode \n + * @warning these function is not doing wrap around filtering \n + * This function doesn't perform any data ready check! + * + * @param pRange_mm Pointer to range distance + * @return 0 on success + */ + virtual int GetRange(int32_t *piData) + { + return VL6180x_RangeGetResult(Device, piData); + } + +/** + * @brief Configure ranging interrupt reported to application + * + * @param ConfigGpioInt Select ranging report\n select one (and only one) of:\n + * @a #CONFIG_GPIO_INTERRUPT_DISABLED \n + * @a #CONFIG_GPIO_INTERRUPT_LEVEL_LOW \n + * @a #CONFIG_GPIO_INTERRUPT_LEVEL_HIGH \n + * @a #CONFIG_GPIO_INTERRUPT_OUT_OF_WINDOW \n + * @a #CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY + * @return 0 on success + */ + int RangeConfigInterrupt(uint8_t ConfigGpioInt) + { + return VL6180x_RangeConfigInterrupt(Device, ConfigGpioInt); + } + +/** + * @brief Return ranging error interrupt status + * + * @par Function Description + * Appropriate Interrupt report must have been selected first by @a VL6180x_RangeConfigInterrupt() or @a VL6180x_Prepare() \n + * + * Can be used in polling loop to wait for a given ranging event or in interrupt to read the trigger \n + * Events triggers are : \n + * @a #RES_INT_STAT_GPIO_LOW_LEVEL_THRESHOLD \n + * @a #RES_INT_STAT_GPIO_HIGH_LEVEL_THRESHOLD \n + * @a #RES_INT_STAT_GPIO_OUT_OF_WINDOW \n (RES_INT_STAT_GPIO_LOW_LEVEL_THRESHOLD|RES_INT_STAT_GPIO_HIGH_LEVEL_THRESHOLD) + * @a #RES_INT_STAT_GPIO_NEW_SAMPLE_READY \n + * + * @sa IntrStatus_t + * @param pIntStatus Pointer to status variable to update + * @return 0 on success + */ + int RangeGetInterruptStatus(uint8_t *pIntStatus) + { + return VL6180x_RangeGetInterruptStatus(Device, pIntStatus); + } + +/** + * @brief Run a single ALS measurement in single shot polling mode + * + * @par Function Description + * Kick off a new single shot ALS then wait new measurement ready to retrieve it ( polling system interrupt status register for als) \n + * ALS must be prepared by a first call to @a VL6180x_Prepare() \n + * \n Should not be used in continuous or interrupt mode it will break it and create hazard in start/stop \n + * + * @param dev The device + * @param pAlsData Als data structure to fill up @a VL6180x_AlsData_t + * @return 0 on success + */ + int AlsPollMeasurement(VL6180x_AlsData_t *pAlsData) + { + return VL6180x_AlsPollMeasurement(Device, pAlsData); + } + +/** + * @brief Get actual ALS measurement + * + * @par Function Description + * Can be called after success status polling or in interrupt mode to retrieve ALS measurement from device \n + * This function doesn't perform any data ready check ! + * + * @param pAlsData Pointer to measurement struct @a VL6180x_AlsData_t + * @return 0 on success + */ + int AlsGetMeasurement(VL6180x_AlsData_t *pAlsData) + { + return VL6180x_AlsGetMeasurement(Device, pAlsData); + } + +/** + * @brief Configure ALS interrupts provide to application + * + * @param ConfigGpioInt Select one (and only one) of : \n + * @a #CONFIG_GPIO_INTERRUPT_DISABLED \n + * @a #CONFIG_GPIO_INTERRUPT_LEVEL_LOW \n + * @a #CONFIG_GPIO_INTERRUPT_LEVEL_HIGH \n + * @a #CONFIG_GPIO_INTERRUPT_OUT_OF_WINDOW \n + * @a #CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY + * @return 0 on success may return #INVALID_PARAMS for invalid mode + */ + int AlsConfigInterrupt(uint8_t ConfigGpioInt) + { + return VL6180x_AlsConfigInterrupt(Device, ConfigGpioInt); + } + +/** + * @brief Set ALS integration period + * + * @param period_ms Integration period in msec. Value in between 50 to 100 msec is recommended\n + * @return 0 on success + */ + int AlsSetIntegrationPeriod(uint16_t period_ms) + { + return VL6180x_AlsSetIntegrationPeriod(Device, period_ms); + } + +/** + * @brief Set ALS "inter-measurement period" + * + * @par Function Description + * The so call data-sheet "inter measurement period" is actually an extra inter-measurement delay + * + * @param intermeasurement_period_ms Inter measurement time in milli second\n + * @warning applied value is clipped to 2550 ms\n + * @return 0 on success if value is + */ + int AlsSetInterMeasurementPeriod(uint16_t intermeasurement_period_ms) + { + return VL6180x_AlsSetInterMeasurementPeriod(Device, intermeasurement_period_ms); + } + +/** + * @brief Set ALS analog gain code + * + * @par Function Description + * ALS gain code value programmed in @a SYSALS_ANALOGUE_GAIN . + * @param gain Gain code see datasheet or AlsGainLookUp for real value. Value is clipped to 7. + * @return 0 on success + */ + int AlsSetAnalogueGain(uint8_t gain) + { + return VL6180x_AlsSetAnalogueGain(Device, gain); + } + +/** + * @brief Set thresholds for ALS continuous mode + * @warning Threshold are raw device value not lux! + * + * @par Function Description + * Basically value programmed in @a SYSALS_THRESH_LOW and @a SYSALS_THRESH_HIGH registers + * @param low ALS low raw threshold for @a SYSALS_THRESH_LOW + * @param high ALS high raw threshold for @a SYSALS_THRESH_HIGH + * @return 0 on success + */ + int AlsSetThresholds(uint16_t lux_threshold_low, uint16_t lux_threshold_high); + +/** + * Read ALS interrupt status + * @param pIntStatus Pointer to status + * @return 0 on success + */ + int AlsGetInterruptStatus(uint8_t *pIntStatus) + { + return VL6180x_AlsGetInterruptStatus(Device, pIntStatus); + } + +/** + * @brief Low level ranging and ALS register static settings (you should call @a VL6180x_Prepare() function instead) + * + * @return 0 on success + */ + int StaticInit() + { + return VL6180x_StaticInit(Device); + } + +/** + * @brief Wait for device to be ready (before a new ranging command can be issued by application) + * @param MaxLoop Max Number of i2c polling loop see @a #msec_2_i2cloop + * @return 0 on success. <0 when fail \n + * @ref VL6180x_ErrCode_t::TIME_OUT for time out \n + * @ref VL6180x_ErrCode_t::INVALID_PARAMS if MaxLop<1 + */ + int RangeWaitDeviceReady(int MaxLoop ) + { + return VL6180x_RangeWaitDeviceReady(Device, MaxLoop); + } + +/** + * @brief Program Inter measurement period (used only in continuous mode) + * + * @par Function Description + * When trying to set too long time, it returns #INVALID_PARAMS + * + * @param InterMeasTime_msec Requires inter-measurement time in msec + * @return 0 on success + */ + int RangeSetInterMeasPeriod(uint32_t InterMeasTime_msec) + { + return VL6180x_RangeSetInterMeasPeriod(Device, InterMeasTime_msec); + } + +/** + * @brief Set device ranging scaling factor + * + * @par Function Description + * The ranging scaling factor is applied on the raw distance measured by the device to increase operating ranging at the price of the precision. + * Changing the scaling factor when device is not in f/w standby state (free running) is not safe. + * It can be source of spurious interrupt, wrongly scaled range etc ... + * @warning __This function doesns't update high/low threshold and other programmed settings linked to scaling factor__. + * To ensure proper operation, threshold and scaling changes should be done following this procedure: \n + * @li Set Group hold : @a VL6180x_SetGroupParamHold() \n + * @li Get Threshold @a VL6180x_RangeGetThresholds() \n + * @li Change scaling : @a VL6180x_UpscaleSetScaling() \n + * @li Set Threshold : @a VL6180x_RangeSetThresholds() \n + * @li Unset Group Hold : @a VL6180x_SetGroupParamHold() + * + * @param scaling Scaling factor to apply (1,2 or 3) + * @return 0 on success when up-scale support is not configured it fail for any + * scaling than the one statically configured. + */ + int UpscaleSetScaling(uint8_t scaling) + { + return VL6180x_UpscaleSetScaling(Device, scaling); + } + +/** + * @brief Get current ranging scaling factor + * + * @return The current scaling factor + */ + int UpscaleGetScaling() + { + return VL6180x_UpscaleGetScaling(Device); + } + +/** + * @brief Get the maximal distance for actual scaling + * @par Function Description + * Do not use prior to @a VL6180x_Prepare() or at least @a VL6180x_InitData() + * + * Any range value more than the value returned by this function is to be considered as "no target detected" + * or "no target in detectable range" \n + * @warning The maximal distance depends on the scaling + * + * @return The maximal range limit for actual mode and scaling + */ + uint16_t GetUpperLimit() + { + return VL6180x_GetUpperLimit(Device); + } + +/** + * @brief Apply low and high ranging thresholds that are considered only in continuous mode + * + * @par Function Description + * This function programs low and high ranging thresholds that are considered in continuous mode : + * interrupt will be raised only when an object is detected at a distance inside this [low:high] range. + * The function takes care of applying current scaling factor if any.\n + * To be safe, in continuous operation, thresholds must be changed under "group parameter hold" cover. + * Group hold can be activated/deactivated directly in the function or externally (then set 0) + * using /a VL6180x_SetGroupParamHold() function. + * + * @param low Low threshold in mm + * @param high High threshold in mm + * @param SafeHold Use of group parameters hold to surround threshold programming. + * @return 0 On success + */ + int RangeSetThresholds(uint16_t low, uint16_t high, int SafeHold) + { + return VL6180x_RangeSetThresholds(Device, low, high, SafeHold); + } + +/** + * @brief Get scaled high and low threshold from device + * + * @par Function Description + * Due to scaling factor, the returned value may be different from what has been programmed first (precision lost). + * For instance VL6180x_RangeSetThresholds(dev,11,22) with scale 3 + * will read back 9 ((11/3)x3) and 21 ((22/3)x3). + * + * @param low scaled low Threshold ptr can be NULL if not needed + * @param high scaled High Threshold ptr can be NULL if not needed + * @return 0 on success, return value is undefined if both low and high are NULL + * @warning return value is undefined if both low and high are NULL + */ + int RangeGetThresholds(uint16_t *low, uint16_t *high) + { + return VL6180x_RangeGetThresholds(Device, low, high); + } + +/** + * @brief Set ranging raw thresholds (scaling not considered so not recommended to use it) + * + * @param low raw low threshold set to raw register + * @param high raw high threshold set to raw register + * @return 0 on success + */ + int RangeSetRawThresholds(uint8_t low, uint8_t high) + { + return VL6180x_RangeSetRawThresholds(Device, low, high); + } + +/** + * @brief Set Early Convergence Estimate ratio + * @par Function Description + * For more information on ECE check datasheet + * @warning May return a calibration warning in some use cases + * + * @param FactorM ECE factor M in M/D + * @param FactorD ECE factor D in M/D + * @return 0 on success. <0 on error. >0 on warning + */ + int RangeSetEceFactor(uint16_t FactorM, uint16_t FactorD) + { + return VL6180x_RangeSetEceFactor(Device, FactorM, FactorD); + } + +/** + * @brief Set Early Convergence Estimate state (See #SYSRANGE_RANGE_CHECK_ENABLES register) + * @param enable State to be set 0=disabled, otherwise enabled + * @return 0 on success + */ + int RangeSetEceState(int enable) + { + return VL6180x_RangeSetEceState(Device, enable); + } + +/** + * @brief Set activation state of the wrap around filter + * @param state New activation state (0=off, otherwise on) + * @return 0 on success + */ + int FilterSetState(int state) + { + return VL6180x_FilterSetState(Device, state); + } + +/** + * Get activation state of the wrap around filter + * @return Filter enabled or not, when filter is not supported it always returns 0S + */ + int FilterGetState() + { + return VL6180x_FilterGetState(Device); + } + +/** + * @brief Set activation state of DMax computation + * @param state New activation state (0=off, otherwise on) + * @return 0 on success + */ + int DMaxSetState(int state) + { + return VL6180x_DMaxSetState(Device, state); + } + +/** + * Get activation state of DMax computation + * @return Filter enabled or not, when filter is not supported it always returns 0S + */ + int DMaxGetState() + { + return VL6180x_DMaxGetState(Device); + } + +/** + * @brief Set ranging mode and start/stop measure (use high level functions instead : @a VL6180x_RangeStartSingleShot() or @a VL6180x_RangeStartContinuousMode()) + * + * @par Function Description + * When used outside scope of known polling single shot stopped state, \n + * user must ensure the device state is "idle" before to issue a new command. + * + * @param mode A combination of working mode (#MODE_SINGLESHOT or #MODE_CONTINUOUS) and start/stop condition (#MODE_START_STOP) \n + * @return 0 on success + */ + int RangeSetSystemMode(uint8_t mode) + { + return VL6180x_RangeSetSystemMode(Device, mode); + } + +/** @} */ + +/** @defgroup api_ll_range_calibration Ranging calibration functions + * @brief Ranging calibration functions + * @ingroup api_ll + * @{ + */ +/** + * @brief Get part to part calibration offset + * + * @par Function Description + * Should only be used after a successful call to @a VL6180x_InitData to backup device nvm value + * + * @return part to part calibration offset from device + */ + int8_t GetOffsetCalibrationData() + { + return VL6180x_GetOffsetCalibrationData(Device); + } + +/** + * Set or over-write part to part calibration offset + * \sa VL6180x_InitData(), VL6180x_GetOffsetCalibrationData() + * @param offset Offset + */ + void SetOffsetCalibrationData(int8_t offset) + { + return VL6180x_SetOffsetCalibrationData(Device, offset); + } + +/** + * @brief Set Cross talk compensation rate + * + * @par Function Description + * It programs register @a #SYSRANGE_CROSSTALK_COMPENSATION_RATE + * + * @param Rate Compensation rate (9.7 fix point) see datasheet for details + * @return 0 on success + */ + int SetXTalkCompensationRate(FixPoint97_t Rate) + { + return VL6180x_SetXTalkCompensationRate(Device, Rate); + } +/** @} */ + +/** @defgroup api_ll_als ALS functions + * @brief ALS functions + * @ingroup api_ll + * @{ + */ + +/** + * @brief Wait for device to be ready for new als operation or max pollign loop (time out) + * @param MaxLoop Max Number of i2c polling loop see @a #msec_2_i2cloop + * @return 0 on success. <0 when @a VL6180x_ErrCode_t::TIME_OUT if timed out + */ + int AlsWaitDeviceReady(int MaxLoop) + { + return VL6180x_AlsWaitDeviceReady(Device, MaxLoop); + } + +/** + * @brief Set ALS system mode and start/stop measure + * + * @warning When used outside after single shot polling, \n + * User must ensure the device state is ready before issuing a new command (using @a VL6180x_AlsWaitDeviceReady()). \n + * Non respect of this, can cause loss of interrupt or device hanging. + * + * @param mode A combination of working mode (#MODE_SINGLESHOT or #MODE_CONTINUOUS) and start condition (#MODE_START_STOP) \n + * @return 0 on success + */ + int AlsSetSystemMode(uint8_t mode) + { + return VL6180x_AlsSetSystemMode(Device, mode); + } + +/** @defgroup api_ll_misc Misc functions + * @brief Misc functions + * @ingroup api_ll + * @{ + */ + +/** + * Set Group parameter Hold state + * + * @par Function Description + * Group parameter holds @a #SYSTEM_GROUPED_PARAMETER_HOLD enable safe update (non atomic across multiple measure) by host + * \n The critical register group is composed of: \n + * #SYSTEM_INTERRUPT_CONFIG_GPIO \n + * #SYSRANGE_THRESH_HIGH \n + * #SYSRANGE_THRESH_LOW \n + * #SYSALS_INTEGRATION_PERIOD \n + * #SYSALS_ANALOGUE_GAIN \n + * #SYSALS_THRESH_HIGH \n + * #SYSALS_THRESH_LOW + * + * + * @param Hold Group parameter Hold state to be set (on/off) + * @return 0 on success + */ + int SetGroupParamHold(int Hold) + { + return VL6180x_SetGroupParamHold(Device, Hold); + } + +/** + * @brief Set new device i2c address + * + * After completion the device will answer to the new address programmed. + * + * @sa AN4478: Using multiple VL6180X's in a single design + * @param NewAddr The new i2c address (7bit) + * @return 0 on success + */ + int SetI2CAddress(int NewAddr) + { + int status; + + status=VL6180x_SetI2CAddress(Device, NewAddr); + if(!status) + Device->I2cAddr=NewAddr; + return status; + } + +/** + * @brief Fully configure gpio 0/1 pin : polarity and functionality + * + * @param pin gpio pin 0 or 1 + * @param IntFunction Pin functionality : either #GPIOx_SELECT_OFF or #GPIOx_SELECT_GPIO_INTERRUPT_OUTPUT (refer to #SYSTEM_MODE_GPIO1 register definition) + * @param ActiveHigh Set active high polarity, or active low see @a ::IntrPol_e + * @return 0 on success + */ + int SetupGPIOx(int pin, uint8_t IntFunction, int ActiveHigh) + { + return VL6180x_SetupGPIOx(Device, pin, IntFunction, ActiveHigh); + } + +/** + * @brief Set interrupt pin polarity for the given GPIO + * + * @param pin Pin 0 or 1 + * @param active_high select active high or low polarity using @ref IntrPol_e + * @return 0 on success + */ + int SetGPIOxPolarity(int pin, int active_high) + { + return VL6180x_SetGPIOxPolarity(Device, pin, active_high); + } + +/** + * Select interrupt functionality for the given GPIO + * + * @par Function Description + * Functionality refer to @a SYSTEM_MODE_GPIO0 + * + * @param pin Pin to configure 0 or 1 (gpio0 or gpio1)\nNote that gpio0 is chip enable at power up ! + * @param functionality Pin functionality : either #GPIOx_SELECT_OFF or #GPIOx_SELECT_GPIO_INTERRUPT_OUTPUT (refer to #SYSTEM_MODE_GPIO1 register definition) + * @return 0 on success + */ + int SetGPIOxFunctionality(int pin, uint8_t functionality) + { + return VL6180x_SetGPIOxFunctionality(Device, pin, functionality); + } + +/** + * #brief Disable and turn to Hi-Z gpio output pin + * + * @param pin The pin number to disable 0 or 1 + * @return 0 on success + */ + int DisableGPIOxOut(int pin) + { + return VL6180x_DisableGPIOxOut(Device, pin); + } + +/** @} */ + +/** @defgroup api_ll_intr Interrupts management functions + * @brief Interrupts management functions + * @ingroup api_ll + * @{ + */ + +/** + * @brief Get all interrupts cause + * + * @param status Ptr to interrupt status. You can use @a IntrStatus_t::val + * @return 0 on success + */ + int GetInterruptStatus(uint8_t *status) + { + return VL6180x_GetInterruptStatus(Device, status); + } + +/** + * @brief Clear given system interrupt condition + * + * @par Function Description + * Clear given interrupt cause by writing into register #SYSTEM_INTERRUPT_CLEAR register. + * @param dev The device + * @param IntClear Which interrupt source to clear. Use any combinations of #INTERRUPT_CLEAR_RANGING , #INTERRUPT_CLEAR_ALS , #INTERRUPT_CLEAR_ERROR. + * @return 0 On success + */ + int ClearInterrupt(uint8_t IntClear) + { + return VL6180x_ClearInterrupt(Device, IntClear ); + } + +/** + * @brief Clear error interrupt + * + * @param dev The device + * @return 0 On success + */ + #define VL6180x_ClearErrorInterrupt(dev) VL6180x_ClearInterrupt(dev, INTERRUPT_CLEAR_ERROR) + +/** + * @brief Clear All interrupt causes (als+range+error) + * + * @param dev The device + * @return 0 On success + */ +#define VL6180x_ClearAllInterrupt(dev) VL6180x_ClearInterrupt(dev, INTERRUPT_CLEAR_ERROR|INTERRUPT_CLEAR_RANGING|INTERRUPT_CLEAR_ALS) + +/** @} */ + +/** + * @brief Get the ALS (light in Lux) level + * + * @par Function Description + * Get the ALS (light in Lux) level + * @param *piData The pointer to variable to write in the measure in Lux + * @return 0 On success + */ + virtual int GetLight(uint32_t *piData) + { + return VL6180x_AlsGetLux(Device, piData); + } + +/** + * @brief Start the ALS (light) measure in continous mode + * + * @par Function Description + * Start the ALS (light) measure in continous mode + * @return 0 On success + */ + int AlsStartContinuousMode() + { + return VL6180x_AlsSetSystemMode(Device, MODE_START_STOP|MODE_CONTINUOUS); + } + +/** + * @brief Start the ALS (light) measure in single shot mode + * + * @par Function Description + * Start the ALS (light) measure in single shot mode + * @return 0 On success + */ + int AlsStartSingleShot() + { + return VL6180x_AlsSetSystemMode(Device, MODE_START_STOP|MODE_SINGLESHOT); + } + + private: + /* api.h functions */ + int VL6180x_WaitDeviceBooted(VL6180xDev_t dev); + int VL6180x_InitData(VL6180xDev_t dev ); + int VL6180x_SetupGPIO1(VL6180xDev_t dev, uint8_t IntFunction, int ActiveHigh); + int VL6180x_Prepare(VL6180xDev_t dev); + int VL6180x_RangeStartContinuousMode(VL6180xDev_t dev); + int VL6180x_RangeStartSingleShot(VL6180xDev_t dev); + int VL6180x_RangeSetMaxConvergenceTime(VL6180xDev_t dev, uint8_t MaxConTime_msec); + int VL6180x_RangePollMeasurement(VL6180xDev_t dev, VL6180x_RangeData_t *pRangeData); + int VL6180x_RangeGetMeasurementIfReady(VL6180xDev_t dev, VL6180x_RangeData_t *pRangeData); + int VL6180x_RangeGetMeasurement(VL6180xDev_t dev, VL6180x_RangeData_t *pRangeData); + int VL6180x_RangeGetResult(VL6180xDev_t dev, int32_t *pRange_mm); + int VL6180x_RangeConfigInterrupt(VL6180xDev_t dev, uint8_t ConfigGpioInt); + int VL6180x_RangeGetInterruptStatus(VL6180xDev_t dev, uint8_t *pIntStatus); + int VL6180x_AlsPollMeasurement(VL6180xDev_t dev, VL6180x_AlsData_t *pAlsData); + int VL6180x_AlsGetMeasurement(VL6180xDev_t dev, VL6180x_AlsData_t *pAlsData); + int VL6180x_AlsConfigInterrupt(VL6180xDev_t dev, uint8_t ConfigGpioInt); + int VL6180x_AlsSetIntegrationPeriod(VL6180xDev_t dev, uint16_t period_ms); + int VL6180x_AlsSetInterMeasurementPeriod(VL6180xDev_t dev, uint16_t intermeasurement_period_ms); + int VL6180x_AlsSetAnalogueGain(VL6180xDev_t dev, uint8_t gain); + int VL6180x_AlsSetThresholds(VL6180xDev_t dev, uint16_t low, uint16_t high); + int VL6180x_AlsGetInterruptStatus(VL6180xDev_t dev, uint8_t *pIntStatus); + int VL6180x_StaticInit(VL6180xDev_t dev); + int VL6180x_RangeWaitDeviceReady(VL6180xDev_t dev, int MaxLoop ); + int VL6180x_RangeSetInterMeasPeriod(VL6180xDev_t dev, uint32_t InterMeasTime_msec); + int VL6180x_UpscaleSetScaling(VL6180xDev_t dev, uint8_t scaling); + int VL6180x_UpscaleGetScaling(VL6180xDev_t dev); + uint16_t VL6180x_GetUpperLimit(VL6180xDev_t dev); + int VL6180x_RangeSetThresholds(VL6180xDev_t dev, uint16_t low, uint16_t high, int SafeHold); + int VL6180x_RangeGetThresholds(VL6180xDev_t dev, uint16_t *low, uint16_t *high); + int VL6180x_RangeSetRawThresholds(VL6180xDev_t dev, uint8_t low, uint8_t high); + int VL6180x_RangeSetEceFactor(VL6180xDev_t dev, uint16_t FactorM, uint16_t FactorD); + int VL6180x_RangeSetEceState(VL6180xDev_t dev, int enable ); + int VL6180x_FilterSetState(VL6180xDev_t dev, int state); + int VL6180x_FilterGetState(VL6180xDev_t dev); + int VL6180x_DMaxSetState(VL6180xDev_t dev, int state); + int VL6180x_DMaxGetState(VL6180xDev_t dev); + int VL6180x_RangeSetSystemMode(VL6180xDev_t dev, uint8_t mode); + int8_t VL6180x_GetOffsetCalibrationData(VL6180xDev_t dev); + void VL6180x_SetOffsetCalibrationData(VL6180xDev_t dev, int8_t offset); + int VL6180x_SetXTalkCompensationRate(VL6180xDev_t dev, FixPoint97_t Rate); + int VL6180x_AlsWaitDeviceReady(VL6180xDev_t dev, int MaxLoop ); + int VL6180x_AlsSetSystemMode(VL6180xDev_t dev, uint8_t mode); + int VL6180x_SetGroupParamHold(VL6180xDev_t dev, int Hold); + int VL6180x_SetI2CAddress(VL6180xDev_t dev, uint8_t NewAddr); + int VL6180x_SetupGPIOx(VL6180xDev_t dev, int pin, uint8_t IntFunction, int ActiveHigh); + int VL6180x_SetGPIOxPolarity(VL6180xDev_t dev, int pin, int active_high); + int VL6180x_SetGPIOxFunctionality(VL6180xDev_t dev, int pin, uint8_t functionality); + int VL6180x_DisableGPIOxOut(VL6180xDev_t dev, int pin); + int VL6180x_GetInterruptStatus(VL6180xDev_t dev, uint8_t *status); + int VL6180x_ClearInterrupt(VL6180xDev_t dev, uint8_t IntClear ); + + /* Other functions defined in api.c */ + int VL6180x_RangeStaticInit(VL6180xDev_t dev); + int VL6180x_UpscaleRegInit(VL6180xDev_t dev); + int VL6180x_UpscaleStaticInit(VL6180xDev_t dev); + int VL6180x_AlsGetLux(VL6180xDev_t dev, lux_t *pLux); + int _UpscaleInitPatch0(VL6180xDev_t dev); + int VL6180x_RangeGetDeviceReady(VL6180xDev_t dev, int * Ready); + int VL6180x_RangeSetEarlyConvergenceEestimateThreshold(VL6180xDev_t dev); + int32_t _GetAveTotalTime(VL6180xDev_t dev); + int32_t _filter_Start(VL6180xDev_t dev, uint16_t m_trueRange_mm, uint16_t m_rawRange_mm, uint32_t m_rtnSignalRate, uint32_t m_rtnAmbientRate, uint16_t errorCode); + int _filter_GetResult(VL6180xDev_t dev, VL6180x_RangeData_t *pRangeData); + int _GetRateResult(VL6180xDev_t dev, VL6180x_RangeData_t *pRangeData); + int _DMax_InitData(VL6180xDev_t dev); + + /* Read function of the ID device */ + virtual int ReadID(); + + /* Write and read functions from I2C */ + int VL6180x_WrByte(VL6180xDev_t dev, uint16_t index, uint8_t data); + int VL6180x_WrWord(VL6180xDev_t dev, uint16_t index, uint16_t data); + int VL6180x_WrDWord(VL6180xDev_t dev, uint16_t index, uint32_t data); + int VL6180x_RdByte(VL6180xDev_t dev, uint16_t index, uint8_t *data); + int VL6180x_RdWord(VL6180xDev_t dev, uint16_t index, uint16_t *data); + int VL6180x_RdDWord(VL6180xDev_t dev, uint16_t index, uint32_t *data); + int VL6180x_UpdateByte(VL6180xDev_t dev, uint16_t index, uint8_t AndData, uint8_t OrData); + int VL6180x_I2CWrite(uint8_t DeviceAddr, uint16_t RegisterAddr, uint8_t *pBuffer, uint16_t NumByteToWrite); + int VL6180x_I2CRead(uint8_t DeviceAddr, uint16_t RegisterAddr, uint8_t *pBuffer, uint16_t NumByteToRead); + + + int IsPresent() + { + int status; + + status=ReadID(); + if(status) + VL6180x_ErrLog("Failed to read ID device. Device not present!\n\r"); + return status; + } + int StopRangeMeasurement(OperatingMode operating_mode); + int StopAlsMeasurement(OperatingMode operating_mode); + int GetRangeMeas(OperatingMode operating_mode, MeasureData_t *Data); + int GetAlsMeas(OperatingMode operating_mode, MeasureData_t *Data); + int GetRangeAlsMeas(MeasureData_t *Data); + int RangeSetLowThreshold(uint16_t threshold); + int RangeSetHighThreshold(uint16_t threshold); + int AlsSetLowThreshold(uint16_t threshold); + int AlsSetHighThreshold(uint16_t threshold); + int GetRangeError(MeasureData_t *Data, VL6180x_RangeData_t RangeData); + int GetAlsError(MeasureData_t *Data, VL6180x_AlsData_t AlsData); + int RangeMeasPollSingleShot(); + int AlsMeasPollSingleShot(); + int RangeMeasPollContinuousMode(); + int AlsMeasPollContinuousMode(); + int AlsGetMeasurementIfReady(VL6180xDev_t dev, VL6180x_AlsData_t *pAlsData); + int RangeMeasIntContinuousMode(void (*fptr)(void)); + int AlsMeasIntContinuousMode(void (*fptr)(void)); + int InterleavedMode(void (*fptr)(void)); + int StartInterleavedMode(); + int AlsGetThresholds(VL6180xDev_t dev, lux_t *low, lux_t *high); + + + /* IO Device */ + DevI2C &dev_i2c; + /* Device data */ + MyVL6180Dev_t MyDevice; + VL6180xDev_t Device; +}; + +#endif // __VL6180X_CLASS_H
diff -r 000000000000 -r 1cb50d31c3b5 VL6180X/vl6180x_def.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/VL6180X/vl6180x_def.h Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,743 @@ +/******************************************************************************* +Copyright © 2014, STMicroelectronics International N.V. +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * 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. + * Neither the name of STMicroelectronics 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, FITNESS FOR A PARTICULAR PURPOSE, AND +NON-INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS ARE DISCLAIMED. +IN NO EVENT SHALL STMICROELECTRONICS INTERNATIONAL N.V. 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. +********************************************************************************/ + +/* + * $Date: 2015-05-13 14:12:05 +0200 (Wed, 13 May 2015) $ + * $Revision: 2290 $ + */ + +/** + * @file VL6180x_def.h + * + * @brief Type definitions for vl6180x api. + * + */ + + +#ifndef _VL6180x_DEF +#define _VL6180x_DEF + +/** API major version */ +#define VL6180x_API_REV_MAJOR 3 +/** API minor version */ +#define VL6180x_API_REV_MINOR 0 +/** API sub version */ +#define VL6180x_API_REV_SUB 1 + +#define VL6180X_STR_HELPER(x) #x +#define VL6180X_STR(x) VL6180X_STR_HELPER(x) + +#include "vl6180x_cfg.h" +#include "vl6180x_types.h" + +/* + * check configuration macro raise error or warning and suggest a default value + */ + +#ifndef VL6180x_UPSCALE_SUPPORT +#error "VL6180x_UPSCALE_SUPPORT not defined" +/* TODO you must define value for upscale support in your vl6180x_cfg.h */ +#endif + +#ifndef VL6180x_ALS_SUPPORT +#error "VL6180x_ALS_SUPPORT not defined" +/* TODO you must define VL6180x_ALS_SUPPORT with a value in your vl6180x_cfg.h set to 0 do disable*/ +#endif + +#ifndef VL6180x_HAVE_DMAX_RANGING +#error "VL6180x_HAVE_DMAX_RANGING not defined" +/* TODO you may remove or comment these #error and keep the default below or update your vl6180x_cfg.h .h file */ +/** + * force VL6180x_HAVE_DMAX_RANGING to not supported when not part of cfg file + */ +#define VL6180x_HAVE_DMAX_RANGING 0 +#endif + +#ifndef VL6180x_EXTENDED_RANGE +#define VL6180x_EXTENDED_RANGE 0 +#endif + +#ifndef VL6180x_WRAP_AROUND_FILTER_SUPPORT +#error "VL6180x_WRAP_AROUND_FILTER_SUPPORT not defined ?" +/* TODO you may remove or comment these #error and keep the default below or update vl6180x_cfg.h file */ +/** + * force VL6180x_WRAP_AROUND_FILTER_SUPPORT to not supported when not part of cfg file + */ +#define VL6180x_WRAP_AROUND_FILTER_SUPPORT 0 +#endif + + + + +/**************************************** + * PRIVATE define do not edit + ****************************************/ + +/** Maximal buffer size ever use in i2c */ +#define VL6180x_MAX_I2C_XFER_SIZE 8 /* At present time it 6 byte max but that can change */ + +#if VL6180x_UPSCALE_SUPPORT < 0 +/** + * @def VL6180x_HAVE_UPSCALE_DATA + * @brief is defined if device data structure has data so when user configurable up-scale is active + */ +#define VL6180x_HAVE_UPSCALE_DATA /* have data only for user configurable up-scale config */ +#endif + +#if VL6180x_WRAP_AROUND_FILTER_SUPPORT +/** + * @def VL6180x_HAVE_WRAP_AROUND_DATA + * @brief is defined if device data structure has filter data so when active in cfg file + */ +#define VL6180x_HAVE_WRAP_AROUND_DATA +#endif + +#if VL6180x_ALS_SUPPORT != 0 +/** + * @def VL6180x_HAVE_ALS_DATA + * @brief is defined when als data are include in device data structure so when als suport if configured + */ +#define VL6180x_HAVE_ALS_DATA +#endif + + +#if VL6180x_WRAP_AROUND_FILTER_SUPPORT || VL6180x_HAVE_DMAX_RANGING + #define VL6180x_HAVE_RATE_DATA +#endif + +/** Error and warning code returned by API + * + * negative value are true error mostly fatal\n + * positive value are warning most of time it's ok to continue\n + */ +enum VL6180x_ErrCode_t{ + API_NO_ERROR = 0, + CALIBRATION_WARNING = 1, /*!< warning invalid calibration data may be in used \a VL6180x_InitData() \a VL6180x_GetOffsetCalibrationData \a VL6180x_SetOffsetCalibrationData*/ + MIN_CLIPED = 2, /*!< warning parameter passed was clipped to min before to be applied */ + NOT_GUARANTEED = 3, /*!< Correct operation is not guaranteed typically using extended ranging on vl6180x */ + NOT_READY = 4, /*!< the data is not ready retry */ + + API_ERROR = -1, /*!< Unqualified error */ + INVALID_PARAMS = -2, /*!< parameter passed is invalid or out of range */ + NOT_SUPPORTED = -3, /*!< function is not supported in current mode or configuration */ + RANGE_ERROR = -4, /*!< device report a ranging error interrupt status */ + TIME_OUT = -5, /*!< aborted due to time out */ +}; + +/** + * Filtered result data structure range data is to be used + */ +typedef struct RangeFilterResult_tag { + uint16_t range_mm; /*!< Filtered ranging value */ + uint16_t rawRange_mm; /*!< raw range value (scaled) */ +} RangeFilterResult_t; + +/** + * "small" unsigned data type used in filter + * + * if data space saving is not a concern it can be change to platform native unsigned int + */ +typedef uint8_t FilterType1_t; + +/** + * @def FILTER_NBOF_SAMPLES + * @brief sample history len used for wrap around filtering + */ +#define FILTER_NBOF_SAMPLES 10 +/** + * Wrap around filter internal data + */ +struct FilterData_t { + uint32_t MeasurementIndex; /*!< current measurement index */ + uint16_t LastTrueRange[FILTER_NBOF_SAMPLES]; /*!< filtered/corrected distance history */ + uint32_t LastReturnRates[FILTER_NBOF_SAMPLES]; /*!< Return rate history */ + uint16_t StdFilteredReads; /*!< internal use */ + FilterType1_t Default_ZeroVal; /*!< internal use */ + FilterType1_t Default_VAVGVal; /*!< internal use */ + FilterType1_t NoDelay_ZeroVal; /*!< internal use */ + FilterType1_t NoDelay_VAVGVal; /*!< internal use */ + FilterType1_t Previous_VAVGDiff; /*!< internal use */ +}; + +#if VL6180x_HAVE_DMAX_RANGING +typedef int32_t DMaxFix_t; +struct DMaxData_t { + uint32_t ambTuningWindowFactor_K; /*!< internal algo tuning (*1000) */ + + DMaxFix_t retSignalAt400mm; /*!< intermediate dmax computation value caching @a #SYSRANGE_CROSSTALK_COMPENSATION_RATE and private reg 0x02A */ + //int32_t RegB8; /*!< register 0xB8 cached to speed reduce i2c traffic for dmax computation */ + /* place all word data below to optimize struct packing */ + //int32_t minSignalNeeded; /*!< optimized computation intermediate base on register cached value */ + int32_t snrLimit_K; /*!< cached and optimized computation intermediate from @a #SYSRANGE_MAX_AMBIENT_LEVEL_MULT */ + uint16_t ClipSnrLimit; /*!< Max value for snr limit */ + /* place all byte data below to optimize packing */ + //uint8_t MaxConvTime; /*!< cached max convergence time @a #SYSRANGE_MAX_CONVERGENCE_TIME*/ +}; +#endif + +/** + * @struct VL6180xDevData_t + * + * @brief Per VL6180x device St private data structure \n + * End user should never access any of these field directly + * + * These must never access directly but only via VL6180xDev/SetData(dev, field) macro + */ +struct VL6180xDevData_t { + + uint32_t Part2PartAmbNVM; /*!< backed up NVM value */ + uint32_t XTalkCompRate_KCps; /*! Cached XTlak Compensation Rate */ + + uint16_t EceFactorM; /*!< Ece Factor M numerator */ + uint16_t EceFactorD; /*!< Ece Factor D denominator*/ + +#ifdef VL6180x_HAVE_ALS_DATA + uint16_t IntegrationPeriod; /*!< cached als Integration period avoid slow read from device at each measure */ + uint16_t AlsGainCode; /*!< cached Als gain avoid slow read from device at each measure */ + uint16_t AlsScaler; /*!< cached Als scaler avoid slow read from device at each measure */ +#endif + +#ifdef VL6180x_HAVE_UPSCALE_DATA + uint8_t UpscaleFactor; /*!< up-scaling factor*/ +#endif + +#ifdef VL6180x_HAVE_WRAP_AROUND_DATA + uint8_t WrapAroundFilterActive; /*!< Filter on/off */ + struct FilterData_t FilterData; /*!< Filter internal data state history ... */ +#endif + +#if VL6180x_HAVE_DMAX_RANGING + struct DMaxData_t DMaxData; + uint8_t DMaxEnable; +#endif + int8_t Part2PartOffsetNVM; /*!< backed up NVM value */ +}; + +#if VL6180x_SINGLE_DEVICE_DRIVER +extern struct VL6180xDevData_t SingleVL6180xDevData; +#define VL6180xDevDataGet(dev, field) (SingleVL6180xDevData.field) +/* is also used as direct accessor like VL6180xDevDataGet(dev, x)++*/ +#define VL6180xDevDataSet(dev, field, data) (SingleVL6180xDevData.field)=(data) +#endif + + +/** + * @struct VL6180x_RangeData_t + * @brief Range and any optional measurement data. + */ +typedef struct { + int32_t range_mm; /*!< range distance in mm. */ + int32_t signalRate_mcps; /*!< signal rate (MCPS)\n these is a 9.7 fix point value, which is effectively a measure of target reflectance.*/ + uint32_t errorStatus; /*!< Error status of the current measurement. \n + see @a ::RangeError_u @a VL6180x_GetRangeStatusErrString() */ + + +#ifdef VL6180x_HAVE_RATE_DATA + uint32_t rtnAmbRate; /*!< Return Ambient rate in KCount per sec related to \a RESULT_RANGE_RETURN_AMB_COUNT */ + uint32_t rtnRate; /*!< Return rate in KCount per sec related to \a RESULT_RANGE_RETURN_SIGNAL_COUNT */ + uint32_t rtnConvTime; /*!< Return Convergence time \a RESULT_RANGE_RETURN_CONV_TIME */ + uint32_t refConvTime; /*!< Reference convergence time \a RESULT_RANGE_REFERENCE_CONV_TIME */ +#endif + + +#if VL6180x_HAVE_DMAX_RANGING + uint32_t DMax; /*!< DMax when applicable */ +#endif + +#ifdef VL6180x_HAVE_WRAP_AROUND_DATA + RangeFilterResult_t FilteredData; /*!< Filter result main range_mm is updated */ +#endif +}VL6180x_RangeData_t; + + +/** use where fix point 9.7 bit values are expected + * + * given a floating point value f it's .7 bit point is (int)(f*(1<<7))*/ +typedef uint16_t FixPoint97_t; + +/** lux data type */ +typedef uint32_t lux_t; + +/** + * @brief This data type defines als measurement data. + */ +typedef struct VL6180x_AlsData_st{ + lux_t lux; /**< Light measurement (Lux) */ + uint32_t errorStatus; /**< Error status of the current measurement. \n + * No Error := 0. \n + * Refer to product sheets for other error codes. */ +}VL6180x_AlsData_t; + +/** + * @brief Range status Error code + * + * @a VL6180x_GetRangeStatusErrString() if configured ( @a #VL6180x_RANGE_STATUS_ERRSTRING ) + * related to register @a #RESULT_RANGE_STATUS and additional post processing + */ +typedef enum { + NoError_=0, /*!< 0 0b0000 NoError */ + VCSEL_Continuity_Test, /*!< 1 0b0001 VCSEL_Continuity_Test */ + VCSEL_Watchdog_Test, /*!< 2 0b0010 VCSEL_Watchdog_Test */ + VCSEL_Watchdog, /*!< 3 0b0011 VCSEL_Watchdog */ + PLL1_Lock, /*!< 4 0b0100 PLL1_Lock */ + PLL2_Lock, /*!< 5 0b0101 PLL2_Lock */ + Early_Convergence_Estimate,/*!< 6 0b0110 Early_Convergence_Estimate */ + Max_Convergence, /*!< 7 0b0111 Max_Convergence */ + No_Target_Ignore, /*!< 8 0b1000 No_Target_Ignore */ + Not_used_9, /*!< 9 0b1001 Not_used */ + Not_used_10, /*!< 10 0b1010 Not_used_ */ + Max_Signal_To_Noise_Ratio, /*!< 11 0b1011 Max_Signal_To_Noise_Ratio*/ + Raw_Ranging_Algo_Underflow,/*!< 12 0b1100 Raw_Ranging_Algo_Underflow*/ + Raw_Ranging_Algo_Overflow, /*!< 13 0b1101 Raw_Ranging_Algo_Overflow */ + Ranging_Algo_Underflow, /*!< 14 0b1110 Ranging_Algo_Underflow */ + Ranging_Algo_Overflow, /*!< 15 0b1111 Ranging_Algo_Overflow */ + + /* code below are addition for API/software side they are not hardware*/ + RangingFiltered =0x10, /*!< 16 0b10000 filtered by post processing*/ + +} RangeError_u; + + +/** @defgroup device_regdef Device registers & masks definitions + * @brief Device registers and masks definitions + */ + + +/** @ingroup device_regdef + * @{*/ + +/** + * The device model ID + */ +#define IDENTIFICATION_MODEL_ID 0x000 +/** + * Revision identifier of the Device for major change. + */ +#define IDENTIFICATION_MODULE_REV_MAJOR 0x003 +/** + * Revision identifier of the Device for minor change. + */ +#define IDENTIFICATION_MODULE_REV_MINOR 0x004 + + +/** + * @def SYSTEM_MODE_GPIO0 + * @brief Configures polarity and select which function gpio 0 serves. + * Gpio0 is chip enable at power up ! Be aware of all h/w implication of turning it to output. + * Same definition as #SYSTEM_MODE_GPIO1 + * @ingroup device_regdef + */ +#define SYSTEM_MODE_GPIO0 0x010 +/** + * @def SYSTEM_MODE_GPIO1 + * @brief Configures polarity and select what als or ranging functionality gpio pin serves. + * + * Function can be #GPIOx_SELECT_OFF #GPIOx_SELECT_GPIO_INTERRUPT_OUTPUT.\n + * Same definition apply to register GPIO0 that is used as chip enable at power up. + * @ingroup device_regdef + */ +#define SYSTEM_MODE_GPIO1 0x011 + /** gpio pad POLARITY mask in #SYSTEM_MODE_GPIO1 (and/or 0) write 1 to set active high polarity (positive edge) */ + #define GPIOx_POLARITY_SELECT_MASK 0x20 + /** gpio pad Function select shift in #SYSTEM_MODE_GPIO1 or 0 */ + #define GPIOx_FUNCTIONALITY_SELECT_SHIFT 1 + /** gpio pad Function select mask in #SYSTEM_MODE_GPIO1 or 0 */ + #define GPIOx_FUNCTIONALITY_SELECT_MASK (0xF<<GPIOx_FUNCTIONALITY_SELECT_SHIFT) + /** select no interrupt in #SYSTEM_MODE_GPIO1 pad is put in Hi-Z*/ + #define GPIOx_SELECT_OFF 0x00 + /** select gpiox as interrupt output in #SYSTEM_MODE_GPIO1 */ + #define GPIOx_SELECT_GPIO_INTERRUPT_OUTPUT 0x08 + /** select range as source for interrupt on in #SYSTEM_MODE_GPIO1 */ + #define GPIOx_MODE_SELECT_RANGING 0x00 + /** select als as source for interrupt on in #SYSTEM_MODE_GPIO1 */ + #define GPIOx_MODE_SELECT_ALS 0x01 + + +/** + * @def SYSTEM_INTERRUPT_CONFIG_GPIO + * + * @brief Configure Als and Ranging interrupt reporting + * + * Possible values for Range and ALS are\n + * + * #CONFIG_GPIO_INTERRUPT_DISABLED\n + * #CONFIG_GPIO_INTERRUPT_LEVEL_LOW\n + * #CONFIG_GPIO_INTERRUPT_LEVEL_HIGH\n + * #CONFIG_GPIO_INTERRUPT_OUT_OF_WINDOW\n + * #CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY\n + * Apply respective rang/als shift and mask \n + * #CONFIG_GPIO_RANGE_SHIFT and full reg mask #CONFIG_GPIO_RANGE_MASK\n + * #CONFIG_GPIO_ALS_SHIFT and full reg mask #CONFIG_GPIO_ALS_MASK\n + * + * \sa GPIO use for interrupt #SYSTEM_MODE_GPIO0 or #SYSTEM_MODE_GPIO1\n + * @ingroup device_regdef + */ +#define SYSTEM_INTERRUPT_CONFIG_GPIO 0x014 + /** RANGE bits shift in #SYSTEM_INTERRUPT_CONFIG_GPIO */ + #define CONFIG_GPIO_RANGE_SHIFT 0 + /** RANGE bits mask in #SYSTEM_INTERRUPT_CONFIG_GPIO (unshifted)*/ + #define CONFIG_GPIO_RANGE_MASK (0x7<<CONFIG_GPIO_RANGE_SHIFT) + /** ALS bits shift in #SYSTEM_INTERRUPT_CONFIG_GPIO */ + #define CONFIG_GPIO_ALS_SHIFT 3 + /** ALS bits mask in #SYSTEM_INTERRUPT_CONFIG_GPIO (unshifted)*/ + #define CONFIG_GPIO_ALS_MASK (0x7<<CONFIG_GPIO_ALS_SHIFT) + /** interrupt is disabled */ + #define CONFIG_GPIO_INTERRUPT_DISABLED 0x00 + /** trigger when value < low threshold */ + #define CONFIG_GPIO_INTERRUPT_LEVEL_LOW 0x01 + /** trigger when value < low threshold */ + #define CONFIG_GPIO_INTERRUPT_LEVEL_HIGH 0x02 + /** trigger when outside range defined by high low threshold */ + #define CONFIG_GPIO_INTERRUPT_OUT_OF_WINDOW 0x03 + /** trigger when new sample are ready */ + #define CONFIG_GPIO_INTERRUPT_NEW_SAMPLE_READY 0x04 + +/** + * @def SYSTEM_INTERRUPT_CLEAR + * @brief Writing to this register will clear interrupt source + * + * Use or combination of any #INTERRUPT_CLEAR_RANGING , #INTERRUPT_CLEAR_ALS , #INTERRUPT_CLEAR_ERROR + * @ingroup device_regdef + */ +#define SYSTEM_INTERRUPT_CLEAR 0x015 + /** clear ranging interrupt in write to #SYSTEM_INTERRUPT_CLEAR */ + #define INTERRUPT_CLEAR_RANGING 0x01 + /** clear als interrupt in write to #SYSTEM_INTERRUPT_CLEAR */ + #define INTERRUPT_CLEAR_ALS 0x02 + /** clear error interrupt in write to #SYSTEM_INTERRUPT_CLEAR */ + #define INTERRUPT_CLEAR_ERROR 0x04 + +/** After power up or reset this register will start reading 1 when device is ready */ +#define SYSTEM_FRESH_OUT_OF_RESET 0x016 + +/** + * @def SYSTEM_GROUPED_PARAMETER_HOLD + * @brief Writing 1/0 activate/deactivate safe host update of multiple register in critical group \n + * rather use \a VL6180x_SetGroupParamHold() + * + * The critical register group is made of: \n + * #SYSTEM_INTERRUPT_CONFIG_GPIO \n + * #SYSRANGE_THRESH_HIGH \n + * #SYSRANGE_THRESH_LOW \n + * #SYSALS_INTEGRATION_PERIOD \n + * #SYSALS_ANALOGUE_GAIN \n + * #SYSALS_THRESH_HIGH \n + * #SYSALS_THRESH_LOW + * @ingroup device_regdef + */ +#define SYSTEM_GROUPED_PARAMETER_HOLD 0x017 + + +/** + * @def SYSRANGE_START + * @brief Start/stop and set operating range mode + * + * Write Combination of #MODE_START_STOP and #MODE_CONTINUOUS to select and start desired operation. + * + * @ingroup device_regdef + */ +#define SYSRANGE_START 0x018 + /** mask existing bit in #SYSRANGE_START*/ + #define MODE_MASK 0x03 + /** bit 0 in #SYSRANGE_START write 1 toggle state in continuous mode and arm next shot in single shot mode */ + #define MODE_START_STOP 0x01 + /** bit 1 write 1 in #SYSRANGE_START set continuous operation mode */ + #define MODE_CONTINUOUS 0x02 + /** bit 1 write 0 in #SYSRANGE_START set single shot mode */ + #define MODE_SINGLESHOT 0x00 + +/** + * @def SYSRANGE_THRESH_HIGH + * High level range threshold (must be scaled) + * @ingroup device_regdef + */ +#define SYSRANGE_THRESH_HIGH 0x019 + +/** + * @def SYSRANGE_THRESH_LOW + * Low level range threshold (must be scaled) + * @ingroup device_regdef + */ +#define SYSRANGE_THRESH_LOW 0x01A + +/** + * @def SYSRANGE_INTERMEASUREMENT_PERIOD + * @brief Continuous mode intermeasurement delay \a VL6180x_RangeSetInterMeasPeriod() + * + * Time delay between measurements in Ranging continuous mode.\n + * Range 0-254 (0 = 10ms).\n Step size = 10ms. + * + * @ingroup device_regdef + */ +#define SYSRANGE_INTERMEASUREMENT_PERIOD 0x01B + +/** + * @brief Maximum time to run measurement in Ranging modes. + * Range 1 - 63 ms (1 code = 1 ms); + * + * Measurement aborted when limit reached to aid power reduction.\ + * For example, 0x01 = 1ms, 0x0a = 10ms.\ + * Note: Effective max_convergence_time depends on readout_averaging_sample_period setting. + * + * @ingroup device_regdef + */ +#define SYSRANGE_MAX_CONVERGENCE_TIME 0x01C +/**@brief Cross talk compensation rate + * @warning never write register directly use @a VL6180x_SetXTalkCompensationRate() + * refer to manual for calibration procedure and computation + * @ingroup device_regdef + */ +#define SYSRANGE_CROSSTALK_COMPENSATION_RATE 0x01E +/** + * @brief Minimum range value in mm to qualify for crosstalk compensation + */ +#define SYSRANGE_CROSSTALK_VALID_HEIGHT 0x021 +#define SYSRANGE_EARLY_CONVERGENCE_ESTIMATE 0x022 +#define SYSRANGE_PART_TO_PART_RANGE_OFFSET 0x024 +#define SYSRANGE_RANGE_IGNORE_VALID_HEIGHT 0x025 +#define SYSRANGE_RANGE_IGNORE_THRESHOLD 0x026 +#define SYSRANGE_EMITTER_BLOCK_THRESHOLD 0x028 +#define SYSRANGE_MAX_AMBIENT_LEVEL_THRESH 0x02A +#define SYSRANGE_MAX_AMBIENT_LEVEL_MULT 0x02C +/** @brief various Enable check enabel register + * @a VL6180x_RangeSetEceState() + */ +#define SYSRANGE_RANGE_CHECK_ENABLES 0x02D + #define RANGE_CHECK_ECE_ENABLE_MASK 0x01 + #define RANGE_CHECK_RANGE_ENABLE_MASK 0x02 + #define RANGE_CHECK_SNR_ENABLKE 0x10 + +#define SYSRANGE_VHV_RECALIBRATE 0x02E +#define SYSRANGE_VHV_REPEAT_RATE 0x031 + +/** + * @def SYSALS_START + * @brief Start/stop and set operating als mode + * + * same bit definition as range \a #SYSRANGE_START \n + */ +#define SYSALS_START 0x038 + +/** ALS low Threshold high */ +#define SYSALS_THRESH_HIGH 0x03A +/** ALS low Threshold low */ +#define SYSALS_THRESH_LOW 0x03C +/** ALS intermeasurement period */ +#define SYSALS_INTERMEASUREMENT_PERIOD 0x03E +/** + * @warning or value with 0x40 when writing to these register*/ +#define SYSALS_ANALOGUE_GAIN 0x03F +/** ALS integration period */ +#define SYSALS_INTEGRATION_PERIOD 0x040 + +/** + * @brief Result range status + * + * Hold the various range interrupt flags and error Specific error codes + */ +#define RESULT_RANGE_STATUS 0x04D + /** Device ready for new command bit 0*/ + #define RANGE_DEVICE_READY_MASK 0x01 + /** mask for error status covers bits [7:4] in #RESULT_RANGE_STATUS @a ::RangeError_u */ + #define RANGE_ERROR_CODE_MASK 0xF0 /* */ + /** range error bit position in #RESULT_RANGE_STATUS */ + #define RANGE_ERROR_CODE_SHIFT 4 + +/** + * @def RESULT_ALS_STATUS + * @brief Result als status \n + * Hold the various als interrupt flags and Specific error codes + */ +#define RESULT_ALS_STATUS 0x4E + /** Device ready for new command bit 0*/ + #define ALS_DEVICE_READY_MASK 0x01 + +/** + * @def RESULT_ALS_VAL + * @brief 16 Bit ALS count output value. + * + * Lux value depends on Gain and integration settings and calibrated lux/count setting + * \a VL6180x_AlsGetLux() \a VL6180x_AlsGetMeasurement() + */ +#define RESULT_ALS_VAL 0x50 + +/** + * @def FW_ALS_RESULT_SCALER + * @brief Als scaler register Bits [3:0] analogue gain 1 to 16x + * these register content is cached by API in \a VL6180xDevData_t::AlsScaler + * for lux computation acceleration + */ +#define FW_ALS_RESULT_SCALER 0x120 + + +/** + * these union can be use as a generic bit field type for map #RESULT_INTERRUPT_STATUS_GPIO register + * @ingroup device_regdef + */ +typedef union IntrStatus_u{ + uint8_t val; /*!< raw 8 bit register value*/ + struct { + unsigned Range :3; /*!< Range status one of :\n \a #RES_INT_STAT_GPIO_LOW_LEVEL_THRESHOLD \n \a #RES_INT_STAT_GPIO_HIGH_LEVEL_THRESHOLD \n \a #RES_INT_STAT_GPIO_OUT_OF_WINDOW \n \a #RES_INT_STAT_GPIO_NEW_SAMPLE_READY */ + unsigned Als :3; /*!< Als status one of: \n \a #RES_INT_STAT_GPIO_LOW_LEVEL_THRESHOLD \n \a #RES_INT_STAT_GPIO_HIGH_LEVEL_THRESHOLD \n \a #RES_INT_STAT_GPIO_OUT_OF_WINDOW \n \a #RES_INT_STAT_GPIO_NEW_SAMPLE_READY */ + unsigned Error :2; /*!< Error status of: \n \a #RES_INT_ERROR_LASER_SAFETY \n \a #RES_INT_ERROR_PLL */ + } status; /*!< interrupt status as bit field */ +} IntrStatus_t; + +/** + * @def RESULT_INTERRUPT_STATUS_GPIO + * @brief System interrupt status report selected interrupt for als and ranging + * + * These register can be polled even if no gpio pins is active\n + * What reported is selected by \a #SYSTEM_INTERRUPT_CONFIG_GPIO \n + * Range mask with \a #RES_INT_RANGE_MASK and shit by \a #RES_INT_RANGE_SHIFT + * Als mask with \a #RES_INT_ALS_MASK and shit by \a #RES_INT_ALS_SHIFT + * Result value express condition (or combination?) + * \a #RES_INT_STAT_GPIO_LOW_LEVEL_THRESHOLD \n + * \a #RES_INT_STAT_GPIO_HIGH_LEVEL_THRESHOLD \n + * \a #RES_INT_STAT_GPIO_OUT_OF_WINDOW \n + * \a #RES_INT_STAT_GPIO_NEW_SAMPLE_READY + * + * @ingroup device_regdef + */ +#define RESULT_INTERRUPT_STATUS_GPIO 0x4F + /** ranging interrupt 1st bit position in #RESULT_INTERRUPT_STATUS_GPIO */ + #define RES_INT_RANGE_SHIFT 0 + /** ALS interrupt 1st bit position in #RESULT_INTERRUPT_STATUS_GPIO */ + #define RES_INT_ALS_SHIFT 3 + /** interrupt bit position in #RESULT_INTERRUPT_STATUS_GPIO */ + #define RES_INT_ERROR_SHIFT 6 + /** Ranging interrupt mask in #RESULT_INTERRUPT_STATUS_GPIO (prior to shift) \sa IntrStatus_t */ + #define RES_INT_RANGE_MASK (0x7<<RES_INT_RANGE_SHIFT) + /** als interrupt mask in #RESULT_INTERRUPT_STATUS_GPIO (prior to shift) \sa IntrStatus_t */ + #define RES_INT_ALS_MASK (0x7<<RES_INT_ALS_SHIFT) + + /** low threshold condition in #RESULT_INTERRUPT_STATUS_GPIO for */ + #define RES_INT_STAT_GPIO_LOW_LEVEL_THRESHOLD 0x01 + /** high threshold condition in #RESULT_INTERRUPT_STATUS_GPIO for ALs or Rage*/ + #define RES_INT_STAT_GPIO_HIGH_LEVEL_THRESHOLD 0x02 + /** out of window condition in #RESULT_INTERRUPT_STATUS_GPIO */ + #define RES_INT_STAT_GPIO_OUT_OF_WINDOW 0x03 + /** new sample ready in #RESULT_INTERRUPT_STATUS_GPIO */ + #define RES_INT_STAT_GPIO_NEW_SAMPLE_READY 0x04 + /** error in #RESULT_INTERRUPT_STATUS_GPIO */ + #define RES_INT_ERROR_MASK (0x3<<RES_INT_ERROR_SHIFT) + /** laser safety error on #RES_INT_ERROR_MASK of #RESULT_INTERRUPT_STATUS_GPIO */ + #define RES_INT_ERROR_LASER_SAFETY 1 + /** pll 1 or 2 error on #RES_INT_ERROR_MASK of #RESULT_INTERRUPT_STATUS_GPIO*/ + #define RES_INT_ERROR_PLL 2 + +/** + * Final range result value presented to the user for use. Unit is in mm. + */ +#define RESULT_RANGE_VAL 0x062 + +/** + * Raw Range result value with offset applied (no cross talk compensation applied). Unit is in mm. + */ +#define RESULT_RANGE_RAW 0x064 + +/** + * @brief Sensor count rate of signal returns correlated to IR emitter. + * + * Computed from RETURN_SIGNAL_COUNT / RETURN_CONV_TIME. Mcps 9.7 format + */ +#define RESULT_RANGE_SIGNAL_RATE 0x066 + +/** + * @brief Return signal count + * + * Sensor count output value attributed to signal correlated to IR emitter on the Return array. + */ +#define RESULT_RANGE_RETURN_SIGNAL_COUNT 0x06C + +/** + * @brief Reference signal count + * + * sensor count output value attributed to signal correlated to IR emitter on the Reference array. + */ +#define RESULT_RANGE_REFERENCE_SIGNAL_COUNT 0x070 + +/** + * @brief Return ambient count + * + * sensor count output value attributed to uncorrelated ambient signal on the Return array. + * Must be multiplied by 6 if used to calculate the ambient to signal threshold + */ +#define RESULT_RANGE_RETURN_AMB_COUNT 0x074 + +/** + * @brief Reference ambient count + * + * Sensor count output value attributed to uncorrelated ambient signal on the Reference array. + */ +#define RESULT_RANGE_REFERENCE_AMB_COUNT 0x078 + +/** + * sensor count output value attributed to signal on the Return array. + */ +#define RESULT_RANGE_RETURN_CONV_TIME 0x07C + +/** + * sensor count output value attributed to signal on the Reference array. + */ +#define RESULT_RANGE_REFERENCE_CONV_TIME 0x080 + + +/** + * @def RANGE_SCALER + * @brief RANGE scaling register + * + * Never should user write directly onto that register directly \a VL6180x_UpscaleSetScaling() + */ +#define RANGE_SCALER 0x096 + +/** + * @def READOUT_AVERAGING_SAMPLE_PERIOD + * @brief Readout averaging sample period register + * + * + * The internal readout averaging sample period can be adjusted from 0 to 255. + * Increasing the sampling period decreases noise but also reduces the effective + * max convergence time and increases power consumption + * Each unit sample period corresponds to around 64.5 μs additional processing time. + * The recommended setting is 48 which equates to around 4.3 ms. + * + * see datasheet for more detail + */ +#define READOUT_AVERAGING_SAMPLE_PERIOD 0x10A + +/** + * @def I2C_SLAVE_DEVICE_ADDRESS + * User programmable I2C address (7-bit). Device address can be re-designated after power-up. + * @warning What programmed in the register 7-0 are bit 8-1 of i2c address on bus (bit 0 is rd/wr) + * so what prohamd is commonly whar ergfer as adrerss /2 + * @sa VL6180x_SetI2CAddress() + */ +#define I2C_SLAVE_DEVICE_ADDRESS 0x212 + +#endif /* _VL6180x_DEF */
diff -r 000000000000 -r 1cb50d31c3b5 VL6180X/vl6180x_platform.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/VL6180X/vl6180x_platform.h Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,108 @@ +/******************************************************************************* +################################################################################ +# +# This program is free software; you can redistribute it and/or modify it under +# the terms of the GNU General Public License version 2 and only version 2 as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS +# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more +# details. +# +# You should have received a copy of the GNU General Public License along with +# this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +# +#------------------------------------------------------------------------------ +# Imaging Division +################################################################################ +********************************************************************************/ + + +/* vl6180x_platform.h STM32 Nucleo F401 single device sample code project */ + +#ifndef VL6180x_PLATFORM +#define VL6180x_PLATFORM + + +#include "vl6180x_def.h" + + +#define VL6180x_SINGLE_DEVICE_DRIVER 0 +#define VL6180x_RANGE_STATUS_ERRSTRING 1 +#define VL6180X_SAFE_POLLING_ENTER 0 +#define VL6180X_LOG_ENABLE 0 +#define MY_LOG 1 + +#define VL6180x_DEV_DATA_ATTR +#define ROMABLE_DATA + + +#if VL6180X_LOG_ENABLE +/* dot not include non ansi here trace was a case :( */ +#ifdef TRACE +#include "diag/trace.h" +extern volatile uint32_t g_TickCnt; +#define LOG_GET_TIME() g_TickCnt +//#define LOG_GET_TIME() HAL_GetTick() +#else +/* these is nto stm32 vl6180x GNuArm eclpse build*/ +#define trace_printf(...) (void)0 +#define LOG_GET_TIME() (int)0 /* add your code here expect to be an integer native (%d) type value */ +#endif + + + +#define LOG_FUNCTION_START(fmt, ... ) \ + trace_printf("beg %s start @%d\t" fmt "\n", __func__, LOG_GET_TIME(), ##__VA_ARGS__) + +#define LOG_FUNCTION_END(status)\ + trace_printf("end %s @%d %d\n", __func__, LOG_GET_TIME(), (int)status) + +#define LOG_FUNCTION_END_FMT(status, fmt, ... )\ + trace_printf("End %s @%d %d\t"fmt"\n" , __func__, LOG_GET_TIME(), (int)status, ##__VA_ARGS__) + +#define VL6180x_ErrLog(msg, ... )\ + do{\ + trace_printf("ERR in %s line %d\n" msg, __func__, __LINE__, ##__VA_ARGS__);\ + }while(0) + +#else /* VL6180X_LOG_ENABLE no logging */ + //void OnErrLog(void); + #define LOG_FUNCTION_START(...) (void)0 + #define LOG_FUNCTION_END(...) (void)0 + #define LOG_FUNCTION_END_FMT(...) (void)0 + #define VL6180x_ErrLog(... ) //OnErrLog() //(void)0 +#endif + + +#ifdef MY_LOG /* define printf as pc.printf in order to change the baudrate */ + extern Serial pc; + #define printf(...) pc.printf(__VA_ARGS__) +#endif + + +#if VL6180x_SINGLE_DEVICE_DRIVER + #error "VL6180x_SINGLE_DEVICE_DRIVER must be set" +#endif + +struct MyVL6180Dev_t { + struct VL6180xDevData_t Data; + uint8_t I2cAddr; + //uint8_t DevID; + + //misc flags for application + unsigned Present:1; + unsigned Ready:1; +}; +typedef struct MyVL6180Dev_t *VL6180xDev_t; + +#define VL6180xDevDataGet(dev, field) (dev->Data.field) +#define VL6180xDevDataSet(dev, field, data) (dev->Data.field)=(data) + + +#endif /* VL6180x_PLATFORM */ + + +
diff -r 000000000000 -r 1cb50d31c3b5 VL6180X/vl6180x_types.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/VL6180X/vl6180x_types.h Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,62 @@ +/******************************************************************************* +Copyright © 2014, STMicroelectronics International N.V. +All rights reserved. + +Redistribution and use in source and binary forms, with or without +modification, are permitted provided that the following conditions are met: + * Redistributions of source code must retain the above copyright + notice, this list of conditions and the following disclaimer. + * 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. + * Neither the name of STMicroelectronics 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, FITNESS FOR A PARTICULAR PURPOSE, AND +NON-INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS ARE DISCLAIMED. +IN NO EVENT SHALL STMICROELECTRONICS INTERNATIONAL N.V. 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. +********************************************************************************/ + +#ifndef VL6180x_TYPES_H_ +#define VL6180x_TYPES_H_ + + +#include <stdint.h> +#include <stddef.h> /* these is for NULL */ + +#ifndef NULL +#error "review NULL definition or add required include " +#endif + +#if !defined(STDINT_H) && !defined(_GCC_STDINT_H) && !defined(__STDINT_DECLS) && !defined(_STDINT) && !defined(_STDINT_H) + +#pragma message("Please review type definition of STDINT define for your platform and add to list above ") + + /* + * target platform do not provide stdint or use a different #define than above + * to avoid seeing the message below addapt the #define list above or implement + * all type and delete these pragma + */ + +typedef unsigned int uint32_t; +typedef int int32_t; + +typedef unsigned short uint16_t; +typedef short int16_t; + +typedef unsigned char uint8_t; + +typedef signed char int8_t; + +#endif /* _STDINT_H */ + +#endif /* VL6180x_TYPES_H_ */
diff -r 000000000000 -r 1cb50d31c3b5 X_NUCLEO_COMMON.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/X_NUCLEO_COMMON.lib Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/teams/ST/code/X_NUCLEO_COMMON/#216930edb6b7
diff -r 000000000000 -r 1cb50d31c3b5 X_NUCLEO_IHM01A1.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/X_NUCLEO_IHM01A1.lib Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/teams/Robotique-FIP/code/X_NUCLEO_IHM01A1/#456a51498c6b
diff -r 000000000000 -r 1cb50d31c3b5 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,123 @@ +/** + ****************************************************************************** + * @file main.cpp + * @author Julien Tiron, FIP Télécom Bretagne + * @version V1.0.0 + * @date March 23th, 2016 + * @brief DoorCloser robot main code + ****************************************************************************** + **/ + +/* Includes ------------------------------------------------------------------*/ + +#include "mbed.h" +#include "DevSPI.h" +#include "l6474_class.h" +#include "DevI2C.h" +#include "vl6180x_class.h" + +/* Definitions ---------------------------------------------------------------*/ + +#define VL6180X_ADDRESS 0x29 + +/* Variables -----------------------------------------------------------------*/ + +/* Start and Stop Component */ +InterruptIn startup(PC_1); +Ticker game_length; +volatile bool start = 1; +volatile bool end = 1; + +/* Motor Control Component */ +L6474 *motor1; +L6474 *motor2; + +/* Distance Sensors Component */ +DevI2C *i2c =new DevI2C(D14, D15); +VL6180X sensor1(i2c); +VL6180X sensor2(i2c); +VL6180X sensor3(i2c); + +/* Functions -----------------------------------------------------------------*/ + +void go() +{ + start = 0; +} + +void stop() +{ + end = 0; +} + +void init_sensor(){ + +} + +void switch_sensor(int number){ + +} + +/* Main ----------------------------------------------------------------------*/ + +int main() +{ + /*----- Initialization. -----*/ + + /* Initializing SPI bus. */ + DevSPI dev_spi(D11, D12, D13); + + /* Initializing Motor Control Components. */ + motor1 = new L6474(D2, D8, D7, D9, D10, dev_spi); + motor2 = new L6474(D2, D8, D4, D3, D10, dev_spi); + if (motor1->Init() != COMPONENT_OK) + exit(EXIT_FAILURE); + if (motor2->Init() != COMPONENT_OK) + exit(EXIT_FAILURE); + + /* Interrupt to start the robot */ + startup.fall(&go); + + /* Interrupt to stop the robot */ + game_length.attach(&stop, 90); //1 minutes 30 secondes pour la Coupe + + while(start) { + /* Waiting code */ + } + + while(end) { + /* In-game code */ + + /* Requesting to run backward. */ + motor1->Run(StepperMotor::BWD); + motor2->Run(StepperMotor::FWD); + + /* Waiting until delay has expired. */ + wait_ms(3000); + + motor1->HardStop(); + motor2->HardStop(); + + motor1->WaitWhileActive(); + motor2->WaitWhileActive(); + + /* Requesting to run backward. */ + motor1->Run(StepperMotor::FWD); + motor2->Run(StepperMotor::BWD); + + /* Waiting until delay has expired. */ + wait_ms(3000); + + motor1->HardStop(); + motor2->HardStop(); + + motor1->WaitWhileActive(); + motor2->WaitWhileActive(); + } + + motor1->HardStop(); + motor2->HardStop(); + + motor1->WaitWhileActive(); + motor2->WaitWhileActive(); +}
diff -r 000000000000 -r 1cb50d31c3b5 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Mar 25 21:27:03 2016 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/c0f6e94411f5 \ No newline at end of file