platform.c

/*******************************************************************************
* Copyright (c) 2020, STMicroelectronics - All Rights Reserved
*
* This file is part of the VL53L5CX Ultra Lite Driver and is dual licensed,
* either 'STMicroelectronics Proprietary license'
* or 'BSD 3-clause "New" or "Revised" License' , at your option.
*
********************************************************************************
*
* 'STMicroelectronics Proprietary license'
*
********************************************************************************
*
* License terms: STMicroelectronics Proprietary in accordance with licensing
* terms at www.st.com/sla0081
*
* STMicroelectronics confidential
* Reproduction and Communication of this document is strictly prohibited unless
* specifically authorized in writing by STMicroelectronics.
*
*
********************************************************************************
*
* Alternatively, the VL53L5CX Ultra Lite Driver may be distributed under the
* terms of 'BSD 3-clause "New" or "Revised" License', in which case the
* following provisions apply instead of the ones mentioned above :
*
********************************************************************************
*
* License terms: BSD 3-clause "New" or "Revised" License.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
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#include "platform.h"

uint8_t RdByte(
		VL53L5CX_Platform *p_platform,
		uint16_t RegisterAdress,
		uint8_t *p_value)
{
	uint8_t status = 0;
	uint8_t data_write[2];
	uint8_t data_read[1];

	data_write[0] = (RegisterAdress >> 8) & 0xFF;
	data_write[1] = RegisterAdress & 0xFF;
	status = HAL_I2C_Master_Transmit(p_platform->hi2c, p_platform->address, data_write, 2, 100);
	status = HAL_I2C_Master_Receive(p_platform->hi2c, p_platform->address, data_read, 1, 100);
	*p_value = data_read[0];
  
	return status;
}

uint8_t WrByte(
		VL53L5CX_Platform *p_platform,
		uint16_t RegisterAdress,
		uint8_t value)
{
	uint8_t data_write[3];
	uint8_t status = 0;

	data_write[0] = (RegisterAdress >> 8) & 0xFF;
	data_write[1] = RegisterAdress & 0xFF;
	data_write[2] = value & 0xFF;
	status = HAL_I2C_Master_Transmit(p_platform->hi2c,p_platform->address, data_write, 3, 100);

	return status;
}

uint8_t WrMulti(
		VL53L5CX_Platform *p_platform,
		uint16_t RegisterAdress,
		uint8_t *p_values,
		uint32_t size)
{
	uint8_t status = HAL_I2C_Mem_Write(p_platform->hi2c, p_platform->address, RegisterAdress,
									I2C_MEMADD_SIZE_16BIT, p_values, size, 65535);
	return status;
}

uint8_t WrMultiAsync(
		VL53L5CX_Platform *p_platform,
		uint16_t RegisterAdress,
		uint8_t *p_values,
		uint32_t size)
{
	uint8_t status = HAL_I2C_Mem_Write_IT(p_platform->hi2c, p_platform->address, RegisterAdress,
									I2C_MEMADD_SIZE_16BIT, p_values, size);
	return status;
}


uint8_t RdMulti(
		VL53L5CX_Platform *p_platform,
		uint16_t RegisterAdress,
		uint8_t *p_values,
		uint32_t size)
{

	uint8_t status = HAL_I2C_Mem_Read(p_platform->hi2c, p_platform->address, RegisterAdress, I2C_MEMADD_SIZE_16BIT, p_values, size, 100);
	return status;
}

uint8_t RdMultiAsync(
	VL53L5CX_Platform *p_platform,
		uint16_t RegisterAdress,
		uint8_t *p_values,
		uint32_t size)
{

	uint8_t status = HAL_I2C_Mem_Read_IT(p_platform->hi2c, p_platform->address, RegisterAdress, I2C_MEMADD_SIZE_16BIT, p_values, size);

	return status;
}

uint8_t Reset_Sensor(VL53L5CX_Platform *p_platform)
{
	/* (Optional) Need to be implemented by customer. This function returns 0 if OK */

	/* Set pin LPN to LOW */
	/* Set pin AVDD to LOW */
	/* Set pin VDDIO  to LOW */
	WaitMs(p_platform, 100);

	/* Set pin LPN of to HIGH */
	/* Set pin AVDD of to HIGH */
	/* Set pin VDDIO of  to HIGH */
	WaitMs(p_platform, 100);
  
	return 0;
}

void SwapBuffer(
		uint8_t 		*buffer,
		uint16_t 	 	 size)
{
	uint32_t i, tmp;

	/* Example of possible implementation using <string.h> */
	for(i = 0; i < size; i = i + 4)
	{
		tmp = (
		  buffer[i]<<24)
		|(buffer[i+1]<<16)
		|(buffer[i+2]<<8)
		|(buffer[i+3]);

		memcpy(&(buffer[i]), &tmp, 4);
	}
}

uint8_t WaitMs(
		VL53L5CX_Platform *p_platform,
               uint32_t TimeMs)
{
	HAL_Delay(TimeMs);
	return 0;
}