/******************************************************************************
*
* Freescale Semiconductor Inc.
* (c) Copyright 2008 Freescale Semiconductor, Inc.
* ALL RIGHTS RESERVED.
*
***************************************************************************//*!
*
* @file      GDFLIB_FilterIIRasm.h
*
* @author    r61928
*
* @version   1.0.4.0
*
* @date      Feb-14-2008
*
* @brief     Digital IIR Filter, 1st & 2nd order assembler implementation
*
*******************************************************************************
*
* Digital IIR Filter, 1st & 2nd order assembler implementation.
*
******************************************************************************/
#ifndef _GDFLIB_IIRFILTERASM_H_
#define _GDFLIB_IIRFILTERASM_H_

/******************************************************************************
* Includes
******************************************************************************/
#include "MCF51_types.h"

/******************************************************************************
* Macros
******************************************************************************/
#define GDFLIB_FilterIIR1Asm(f16In, pudtFilter) GDFLIB_FilterIIR1FAsm(f16In, pudtFilter)
#define GDFLIB_FilterIIR1InitC(pudtFilter) GDFLIB_FilterIIR1InitFC(pudtFilter)
//#define GDFLIB_FilterIIR1FAsm(f16In, pudtFilter) GDFLIB_FilterIIR1Asm(f16In, pudtFilter)
//#define GDFLIB_FilterIIR1InitFC(pudtFilter) GDFLIB_FilterIIR1InitC(pudtFilter)



#define FILTER_IIR1_DEFAULT {\
                            {0,0,0},\
                            0, \
                            0}

/******************************************************************************
* Types
******************************************************************************/
typedef struct
{
    Frac16          f16B1;
    Frac16          f16B2;
    Frac16          f16A2;
} GDFLIB_FILTER_IIR_COEFF1_T;

typedef struct
{
    GDFLIB_FILTER_IIR_COEFF1_T  udtFiltCoeff;
    Frac16                      f16FiltBufferX;
    Frac32                      f32FiltBufferY;
} GDFLIB_FILTER_IIR1_T;

/******************************************************************************
* Global functions
******************************************************************************/
extern asm __declspec(register_abi) Frac16 GDFLIB_FilterIIR1FAsm
(
    Frac16 f16In,
    GDFLIB_FILTER_IIR1_T * const pudtFilter
);

extern void __declspec(register_abi) GDFLIB_FilterIIR1InitFC
(
    GDFLIB_FILTER_IIR1_T * const pudtFilter
);

#endif /* _GDFLIB_IIRFILTERASM_H_ */