mikecarper
2b55ff6a62
Cache each validated OTA descriptor field once and size manifest reassembly to the admitted wire format. Compile reviewed read-only VL53L0X tuning data in flash through a private dependency copy, retaining the original implementation for unknown revisions.
110 lines
4.2 KiB
C++
110 lines
4.2 KiB
C++
/*******************************************************************************
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Copyright 2016, STMicroelectronics International N.V.
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All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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* Neither the name of STMicroelectronics nor the
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names of its contributors may be used to endorse or promote products
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derived from this software without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND
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NON-INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS ARE DISCLAIMED.
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IN NO EVENT SHALL STMICROELECTRONICS INTERNATIONAL N.V. BE LIABLE FOR ANY
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DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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******************************************************************************/
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VL53L0X_Error VL53L0X_load_tuning_settings(VL53L0X_DEV Dev,
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uint8_t* pTuningSettingBuffer) {
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VL53L0X_Error Status = VL53L0X_ERROR_NONE;
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int i;
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int Index;
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uint8_t msb;
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uint8_t lsb;
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uint8_t SelectParam;
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uint8_t NumberOfWrites;
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uint8_t Address;
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uint8_t localBuffer[4]; /* max */
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uint16_t Temp16;
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LOG_FUNCTION_START("");
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Index = 0;
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while ((*(pTuningSettingBuffer + Index) != 0) &&
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(Status == VL53L0X_ERROR_NONE)) {
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NumberOfWrites = *(pTuningSettingBuffer + Index);
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Index++;
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if (NumberOfWrites == 0xFF) {
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/* internal parameters */
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SelectParam = *(pTuningSettingBuffer + Index);
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Index++;
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switch (SelectParam) {
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case 0: /* uint16_t SigmaEstRefArray -> 2 bytes */
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msb = *(pTuningSettingBuffer + Index);
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Index++;
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lsb = *(pTuningSettingBuffer + Index);
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Index++;
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Temp16 = VL53L0X_MAKEUINT16(lsb, msb);
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PALDevDataSet(Dev, SigmaEstRefArray, Temp16);
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break;
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case 1: /* uint16_t SigmaEstEffPulseWidth -> 2 bytes */
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msb = *(pTuningSettingBuffer + Index);
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Index++;
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lsb = *(pTuningSettingBuffer + Index);
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Index++;
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Temp16 = VL53L0X_MAKEUINT16(lsb, msb);
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PALDevDataSet(Dev, SigmaEstEffPulseWidth, Temp16);
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break;
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case 2: /* uint16_t SigmaEstEffAmbWidth -> 2 bytes */
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msb = *(pTuningSettingBuffer + Index);
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Index++;
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lsb = *(pTuningSettingBuffer + Index);
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Index++;
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Temp16 = VL53L0X_MAKEUINT16(lsb, msb);
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PALDevDataSet(Dev, SigmaEstEffAmbWidth, Temp16);
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break;
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case 3: /* uint16_t targetRefRate -> 2 bytes */
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msb = *(pTuningSettingBuffer + Index);
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Index++;
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lsb = *(pTuningSettingBuffer + Index);
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Index++;
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Temp16 = VL53L0X_MAKEUINT16(lsb, msb);
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PALDevDataSet(Dev, targetRefRate, Temp16);
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break;
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default: /* invalid parameter */
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Status = VL53L0X_ERROR_INVALID_PARAMS;
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}
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} else if (NumberOfWrites <= 4) {
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Address = *(pTuningSettingBuffer + Index);
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Index++;
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for (i = 0; i < NumberOfWrites; i++) {
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localBuffer[i] = *(pTuningSettingBuffer + Index);
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Index++;
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}
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Status = VL53L0X_WriteMulti(Dev, Address, localBuffer, NumberOfWrites);
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} else {
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Status = VL53L0X_ERROR_INVALID_PARAMS;
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}
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}
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LOG_FUNCTION_END(Status);
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return Status;
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}
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