drv8328.h

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/*
 * Copyright (c) 2023, Texas Instruments Incorporated
 * All rights reserved.
 *
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 *
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 *    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.
 *
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 *    its contributors may be used to endorse or promote products 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"
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/*!****************************************************************************
 *  @file       drv8328.h
 *  @brief      drv8328_MODULE Module
 *
 *  @anchor drv8328_h
 *  # Overview
 *  
 *  API's releated to drv8328
 * 
 *  <hr>
 ******************************************************************************/
#ifndef _drv8328_H_
#define _drv8328_H_

#include "hal.h"

#ifdef __cplusplus
extern "C" {
#endif

#define drv8328_MAXIMUM_WAKEUP_TIME                 (2000)

#define drv8328_VOLTAGE_CONV_CONST                  _IQ20(23.044)

#define drv8328_CSA_REF_VOLTAGE                     (3300)

typedef enum
{
  drv8328_DRVOFF_PIN_LOW = HAL_GPIO_PIN_LOW,
  drv8328_DRVOFF_PIN_HIGH = HAL_GPIO_PIN_HIGH
}drv8328_DRVOFF_PIN_STAT ;

typedef enum
{
  drv8328_DRV_NSLEEP_SLEEP = HAL_GPIO_PIN_LOW,
  drv8328_DRV_NSLEEP_AWAKE = HAL_GPIO_PIN_HIGH
}drv8328_DRV_NSLEEP_STAT;

typedef struct
{
    HAL_GPIO_OUT     nsleep;
    HAL_GPIO_OUT     drvoff;
    HAL_GPIO_IN      nfault;
    _iq20            csa_sf;
    HAL_ADC_CHAN     Vsen;
    HAL_ADC_CHAN     VsenA;
    HAL_ADC_CHAN     VsenB;
    HAL_ADC_CHAN     VsenC;
    HAL_ADC_CHAN     Isen;
    HAL_FAULT_INPUT  faultIn;

}drv8328_Instance;

//*****************************************************************************
// the function prototypes
//*****************************************************************************
__STATIC_INLINE void drv8328_setDrvoff(
        drv8328_Instance *drvHandle, drv8328_DRVOFF_PIN_STAT value)
{
  if(value == drv8328_DRVOFF_PIN_HIGH)
  {
      HAL_writeGPIOPin(drvHandle->drvoff, HAL_GPIO_PIN_HIGH);
  }
  else if(value == drv8328_DRVOFF_PIN_LOW)
  {
      HAL_writeGPIOPin(drvHandle->drvoff, HAL_GPIO_PIN_LOW);
  }
  else
  {
      /* This is expected to be empty */
  }
}

__STATIC_INLINE void drv8328_setnSleep(
        drv8328_Instance *drvHandle, drv8328_DRV_NSLEEP_STAT value)
{
  if(value == drv8328_DRV_NSLEEP_AWAKE)
  {
      HAL_writeGPIOPin(drvHandle->nsleep, HAL_GPIO_PIN_HIGH);
  }
  else if(value == drv8328_DRV_NSLEEP_SLEEP)
  {
      HAL_writeGPIOPin(drvHandle->nsleep, HAL_GPIO_PIN_LOW);
  }
  else
  {
      /* This is expected to be empty */
  }
    /* tWake - Turnon time = 1ms
     * tSleep - Turnoff time = 1ms
     * So not matter what you set sleep pin to just wait 1 ms
     */
  HAL_delayMicroSeconds(drv8328_MAXIMUM_WAKEUP_TIME);
}

__STATIC_INLINE _iq20 drv8328_getcsaVref(uint16_t vRef)
{
    _iq13 temp = _IQ13div(_IQ13(vRef), _IQ13(1000));
    return _IQ13toIQ20(temp);
}

void drv8328_init(drv8328_Instance *drvHandle);

void drv8328_enable(drv8328_Instance *drvHandle);

void drv8328_updateCSAScaleFactor(drv8328_Instance *drvHandle,
                             uint16_t  csa);

_iq20 drv8328_getVoltage(HAL_ADC_CHAN  chan);

_iq20 drv8328_getCurrent(HAL_ADC_CHAN  chan, drv8328_Instance *drvHandle);

void drv8328_ADCVRefSel(HAL_ADC_VREF adcRef, HAL_ADC_CHAN chan,
                        HAL_ADC_INT_VREF internalVRef, uint16_t externalVRef);

#ifdef __cplusplus
}
#endif
#endif /* _drv8328_H_ */