/*!
LTC6115 High Voltage High Side Current and Voltage Sense

@verbatim

The LTC6115 is a versatile combination of a high voltage, high side current
sense amplifier and a voltage sense amplifier.

@endverbatim

https://www.analog.com/en/products/ltc6115.html


Copyright 2018(c) Analog Devices, Inc.

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   notice, this list of conditions and the following disclaimer.
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   distribution.
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   contributors may be used to endorse or promote products derived
   from this software without specific prior written permission.
 - The use of this software may or may not infringe the patent rights
   of one or more patent holders.  This license does not release you
   from the requirement that you obtain separate licenses from these
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 - Use of the software either in source or binary form, must be run
   on or directly connected to an Analog Devices Inc. component.

THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT,
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Copyright 2018 Analog Devices Inc. (ADI)

*/


//! @ingroup Power_Monitors
//! @{
//! @defgroup LTC6115 LTC6115: High-Voltage High Side Current and Voltage Sense
//! @}

/*! @file
    @ingroup LTC6115
    Library for LTC6115 High-Voltage High Side Current and Voltage Sense
*/


#include <stdint.h>
#include <Arduino.h>
#include "Linduino.h"
#include "LT_SPI.h"
#include "LTC6115.h"
#include <SPI.h>


/*!
  6115 Primary  Variables
*/
float LTC6115_VGain = 0;
float LTC6115_IGain = 0;


// Function Definitions

//! This function will initialize 6115 variables.
//! @return void
void LTC6115_initialize()
{
  LTC6115_VGain = 2; // 2.0 V/V default
  LTC6115_IGain = 2.5; // 2.5 V/A default, equiv to 50 V/V with Rsense = 50mOhm
}

//! This function returns the voltage gain (V/V).
//! @return float
float getVGain()
{
  float temp;
  temp = LTC6115_VGain;
  return temp;
}

//! This function returns the current gain (V/A).
//! @return float
float getIGain()
{
  float temp;
  temp = LTC6115_IGain;
  return temp;
}

//! This function converts ADC code to Voltage.
//! @return float
float LTC6115ConvertToVolts(uint32_t val)
{
  float temp;

  temp = (float)val / (float)MAXADCVAL * (float) AREF;
  return temp / (float) LTC6115_VGain * float(40); /* 6115 Vsense fixed input divider 1:40 */
}

//! This function converts ADC code to Voltage without the converted voltage print statement.
//! @return float
float LTC6115ToVolts(uint32_t val)
{
  float temp;
  temp = (float)val / (float)MAXADCVAL * (float) AREF;
  return temp / (float) LTC6115_VGain * float(40); /* 6115 Vsense fixed input divider 1:40 */
}

//! This function converts ADC code to Current.
//! @return float
float LTC6115ConvertToAmps(uint32_t val)
{
  float temp;
  temp = (float)val / (float)MAXADCVAL * (float) AREF;
  return temp / (float) LTC6115_IGain;
}

//! This function converts ADC code to Current without the converted current print statement.
//! @return float
float LTC6115ToAmps(uint32_t val)
{
  float temp;
  temp = (float)val / (float)MAXADCVAL * (float) AREF;
  return temp / (float) LTC6115_IGain;
}

//! This function changes the Voltage gain.
//! @return void
void LTC6115ChangeVGain(float val)
{
  LTC6115_VGain = val;
}

//! This function changes the Current gain.
//! @return float
void LTC6115ChangeIGain(float val)
{
  LTC6115_IGain = val;
}

//! This function converts milliseconds to frequency (Hz).
//! @return uint32_t
uint32_t millsToHz(uint32_t val)
{
  float temp;
  float seconds;
  uint32_t fr;

  seconds = (float) val / 1000.0;
  temp = 1 / seconds;
  fr = (uint32_t) round(temp);
  return fr;
}