drv8329.h

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/*!****************************************************************************
 *  @file       drv8329.h
 *  @brief      DRV8329_MODULE Module
 *
 *  @anchor drv8329_h
 *  # Overview
 *  
 *  API's releated to DRV8329
 * 
 *  <hr>
 ******************************************************************************/
#ifndef _DRV8329_H_
#define _DRV8329_H_

#include "hal.h"

#ifdef __cplusplus
extern "C" {
#endif

#define DRV8329_MAXIMUM_WAKEUP_TIME                 (2000)

#define DRV8329_VOLTAGE_CONV_CONST                  _IQ20(23.044)

#define DRV8329_CSA_REF_VOLTAGE                     (3300)

#define DRV8329_CSAGAIN_5_IQ                        _IQ20(5)

#define DRV8329_CSAGAIN_10_IQ                       _IQ20(10)

#define DRV8329_CSAGAIN_20_IQ                       _IQ20(20)

#define DRV8329_CSAGAIN_40_IQ                       _IQ20(40)

typedef enum
{
    DRV8329_CSAGAIN_5 = 0 << 0,
    DRV8329_CSAGAIN_10 = 1 << 0,
    DRV8329_CSAGAIN_20 = 2 << 0,
    DRV8329_CSAGAIN_40 = 3 << 0
}DRV8329_CSAGAIN ;

typedef enum
{
  DRV8329_DRVOFF_PIN_LOW = HAL_GPIO_PIN_LOW,
  DRV8329_DRVOFF_PIN_HIGH = HAL_GPIO_PIN_HIGH
}DRV8329_DRVOFF_PIN_STAT ;

typedef enum
{
  DRV8329_DRV_NSLEEP_SLEEP = HAL_GPIO_PIN_LOW,
  DRV8329_DRV_NSLEEP_AWAKE = HAL_GPIO_PIN_HIGH
}DRV8329_DRV_NSLEEP_STAT;

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

}DRV8329_Instance;

//*****************************************************************************
// the function prototypes
//*****************************************************************************
__STATIC_INLINE void DRV8329_setDrvoff(
        DRV8329_Instance *drvHandle, DRV8329_DRVOFF_PIN_STAT value)
{
  if(value == DRV8329_DRVOFF_PIN_HIGH)
  {
      HAL_writeGPIOPin(drvHandle->drvoff, HAL_GPIO_PIN_HIGH);
  }
  else if(value == DRV8329_DRVOFF_PIN_LOW)
  {
      HAL_writeGPIOPin(drvHandle->drvoff, HAL_GPIO_PIN_LOW);
  }
  else
  {
      /* This is expected to be empty */
  }
}

__STATIC_INLINE void DRV8329_setnSleep(
        DRV8329_Instance *drvHandle, DRV8329_DRV_NSLEEP_STAT value)
{
  if(value == DRV8329_DRV_NSLEEP_AWAKE)
  {
      HAL_writeGPIOPin(drvHandle->nsleep, HAL_GPIO_PIN_HIGH);
  }
  else if(value == DRV8329_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(DRV8329_MAXIMUM_WAKEUP_TIME);
}

__STATIC_INLINE _iq20 DRV8329_getcsaVref(uint16_t vRef)
{
    _iq13 temp = _IQ13div(_IQ13(vRef), _IQ13(1000));
    return _IQ13toIQ20(temp);
}

void DRV8329_init(DRV8329_Instance *drvHandle);

void DRV8329_enable(DRV8329_Instance *drvHandle);

void DRV8329_updateCSAScaleFactor(DRV8329_Instance *drvHandle,
                             DRV8329_CSAGAIN  csa, uint16_t rSense);

_iq20 DRV8329_getVoltage(HAL_ADC_CHAN  chan);

_iq20 DRV8329_getCurrent(
        HAL_ADC_CHAN  chan, DRV8329_Instance *drvHandle, _iq20 vRef);

void DRV8329_ADCVRefSel(HAL_ADC_VREF adcRef, HAL_ADC_CHAN chan,
                        HAL_ADC_INT_VREF internalVRef, uint16_t externalVRef);

#ifdef __cplusplus
}
#endif
#endif /* _DRV8329_H_ */