float/filter_so.h

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#ifndef _FILTER_SO_H_
#define _FILTER_SO_H_



// **************************************************************************
// the includes

#include "sw/modules/types/src/types.h"




#ifdef __cplusplus
extern "C" {
#endif


// **************************************************************************
// the defines


// **************************************************************************
// the typedefs
 
typedef struct _FILTER_SO_Obj_
{    
  float_t a1;          
  float_t a2;          

  float_t b0;          
  float_t b1;          
  float_t b2;          

  float_t x1;          
  float_t x2;          

  float_t y1;          
  float_t y2;          
} FILTER_SO_Obj;
                                                         

typedef struct _FILTER_SO_Obj_ *FILTER_SO_Handle;
                                                         

// **************************************************************************
// the globals


// **************************************************************************
// the globals


// **************************************************************************
// the function prototypes


static inline float_t FILTER_SO_get_a1(FILTER_SO_Handle handle)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  return(obj->a1);
} // end of FILTER_SO_get_a1() function


static inline float_t FILTER_SO_get_a2(FILTER_SO_Handle handle)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  return(obj->a2);
} // end of FILTER_SO_get_a2() function


static inline float_t FILTER_SO_get_b0(FILTER_SO_Handle handle)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  return(obj->b0);
} // end of FILTER_SO_get_b0() function


static inline float_t FILTER_SO_get_b1(FILTER_SO_Handle handle)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  return(obj->b1);
} // end of FILTER_SO_get_b1() function


static inline float_t FILTER_SO_get_b2(FILTER_SO_Handle handle)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  return(obj->b2);
} // end of FILTER_SO_get_b2() function


static inline float_t FILTER_SO_get_x1(FILTER_SO_Handle handle)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  return(obj->x1);
} // end of FILTER_SO_get_x1() function


static inline float_t FILTER_SO_get_x2(FILTER_SO_Handle handle)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  return(obj->x2);
} // end of FILTER_SO_get_x2() function


static inline float_t FILTER_SO_get_y1(FILTER_SO_Handle handle)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  return(obj->y1);
} // end of FILTER_SO_get_y1() function


static inline float_t FILTER_SO_get_y2(FILTER_SO_Handle handle)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  return(obj->y2);
} // end of FILTER_SO_get_y2() function


extern void FILTER_SO_getDenCoeffs(FILTER_SO_Handle handle,float_t *pa1,float_t *pa2);


extern void FILTER_SO_getInitialConditions(FILTER_SO_Handle handle,float_t *px1,float_t *px2,float_t *py1,float_t *py2);


extern void FILTER_SO_getNumCoeffs(FILTER_SO_Handle handle,float_t *pb0,float_t *pb1,float_t *pb2);


extern FILTER_SO_Handle FILTER_SO_init(void *pMemory,const size_t numBytes);


#ifdef __TMS320C28XX_CLA__
#pragma FUNC_ALWAYS_INLINE(FILTER_SO_run)
#endif
static inline float_t FILTER_SO_run(FILTER_SO_Handle handle,const float_t inputValue)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  float_t a1 = obj->a1;
  float_t a2 = obj->a2;
  float_t b0 = obj->b0;
  float_t b1 = obj->b1;
  float_t b2 = obj->b2;
  float_t x1 = obj->x1;
  float_t x2 = obj->x2;
  float_t y1 = obj->y1;
  float_t y2 = obj->y2;


  // compute the output
  float_t y0 = (b0 * inputValue) + (b1 * x1) + (b2 * x2) - (a1 * y1) - (a2 * y2);


  // store values for next time
  obj->x1 = inputValue;
  obj->x2 = x1;
  obj->y1 = y0;
  obj->y2 = y1;

  return(y0);
} // end of FILTER_SO_run() function


static inline float_t FILTER_SO_run_form_0(FILTER_SO_Handle handle,const float_t inputValue)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  float_t a1 = obj->a1;
  float_t a2 = obj->a2;
  float_t b0 = obj->b0;
  float_t y1 = obj->y1;
  float_t y2 = obj->y2;


  // compute the output
  float_t y0 = (b0 * inputValue) - (a1 * y1) - (a2 * y2);


  // store values for next time
  obj->y1 = y0;
  obj->y2 = y1;

  return(y0);
} // end of FILTER_SO_run_form_0() function


static inline float_t FILTER_SO_run_form_1(FILTER_SO_Handle handle,const float_t inputValue)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  float_t a1 = obj->a1;
  float_t a2 = obj->a2;
  float_t b0 = obj->b0;
  float_t b1 = obj->b1;
  float_t x1 = obj->x1;
  float_t y1 = obj->y1;
  float_t y2 = obj->y2;


  // compute the output
  float_t y0 = (b0 * inputValue) + (b1 * x1) - (a1 *y1) - (a2 * y2);


  // store values for next time
  obj->x1 = inputValue;
  obj->y1 = y0;
  obj->y2 = y1;

  return(y0);
} // end of FILTER_SO_run_form_1() function


static inline void FILTER_SO_set_a1(FILTER_SO_Handle handle,const float_t a1)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  obj->a1 = a1;

  return;
} // end of FILTER_SO_set_a1() function


static inline void FILTER_SO_set_a2(FILTER_SO_Handle handle,const float_t a2)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  obj->a2 = a2;

  return;
} // end of FILTER_SO_set_a2() function


static inline void FILTER_SO_set_b0(FILTER_SO_Handle handle,const float_t b0)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  obj->b0 = b0;

  return;
} // end of FILTER_SO_set_b0() function


static inline void FILTER_SO_set_b1(FILTER_SO_Handle handle,const float_t b1)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  obj->b1 = b1;

  return;
} // end of FILTER_SO_set_b1() function


static inline void FILTER_SO_set_b2(FILTER_SO_Handle handle,const float_t b2)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  obj->b2 = b2;

  return;
} // end of FILTER_SO_set_b2() function


static inline void FILTER_SO_set_x1(FILTER_SO_Handle handle,const float_t x1)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  obj->x1 = x1;

  return;
} // end of FILTER_SO_set_x1() function


static inline void FILTER_SO_set_x2(FILTER_SO_Handle handle,const float_t x2)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  obj->x2 = x2;

  return;
} // end of FILTER_SO_set_x2() function


static inline void FILTER_SO_set_y1(FILTER_SO_Handle handle,const float_t y1)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  obj->y1 = y1;

  return;
} // end of FILTER_SO_set_y1() function


static inline void FILTER_SO_set_y2(FILTER_SO_Handle handle,const float_t y2)
{
  FILTER_SO_Obj *obj = (FILTER_SO_Obj *)handle;

  obj->y2 = y2;

  return;
} // end of FILTER_SO_set_y2() function


extern void FILTER_SO_setDenCoeffs(FILTER_SO_Handle handle,const float_t a1,const float_t a2);


extern void FILTER_SO_setInitialConditions(FILTER_SO_Handle handle,const float_t x1,const float_t x2,const float_t y1,const float_t y2);


extern void FILTER_SO_setNumCoeffs(FILTER_SO_Handle handle,const float_t b0,const float_t b1,const float_t b2);


#ifdef __cplusplus
}
#endif // extern "C"

#endif // end of _FILTER_SO_H_ definition