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      1 /*
      2  * Copyright (C) 2004-2010 NXP Software
      3  * Copyright (C) 2010 The Android Open Source Project
      4  *
      5  * Licensed under the Apache License, Version 2.0 (the "License");
      6  * you may not use this file except in compliance with the License.
      7  * You may obtain a copy of the License at
      8  *
      9  *      http://www.apache.org/licenses/LICENSE-2.0
     10  *
     11  * Unless required by applicable law or agreed to in writing, software
     12  * distributed under the License is distributed on an "AS IS" BASIS,
     13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     14  * See the License for the specific language governing permissions and
     15  * limitations under the License.
     16  */
     17 
     18 /*-------------------------------------------------------------------------*/
     19 #include "BIQUAD.h"
     20 #include "BQ_2I_D32F32Cll_TRC_WRA_01_Private.h"
     21 
     22 /*-------------------------------------------------------------------------*/
     23 /* FUNCTION:                                                               */
     24 /*   BQ_2I_D32F32Cll_TRC_WRA_01_Init                                       */
     25 /*                                                                         */
     26 /* DESCRIPTION:                                                            */
     27 /*   These functions initializes a BIQUAD filter defined as a cascade of   */
     28 /*   biquadratic Filter Sections.                                          */
     29 /*                                                                         */
     30 /* PARAMETERS:                                                             */
     31 /*   pInstance    - output, returns the pointer to the State Variable      */
     32 /*                   This state pointer must be passed to any subsequent   */
     33 /*                   call to "Biquad" functions.                           */
     34 /*   pTaps         - input, pointer to the taps memory                     */
     35 /*   pCoef         - input, pointer to the coefficient structure           */
     36 /*   N             - M coefficient factor of QM.N                          */
     37 /* RETURNS:                                                                */
     38 /*   void return code                                                      */
     39 /*-------------------------------------------------------------------------*/
     40 #ifdef BUILD_FLOAT
     41 void BQ_2I_D32F32Cll_TRC_WRA_01_Init (   Biquad_FLOAT_Instance_t         *pInstance,
     42                                          Biquad_2I_Order2_FLOAT_Taps_t   *pTaps,
     43                                          BQ_FLOAT_Coefs_t            *pCoef)
     44 {
     45     LVM_FLOAT temp;
     46     PFilter_State_FLOAT pBiquadState = (PFilter_State_FLOAT) pInstance;
     47     pBiquadState->pDelays      = (LVM_FLOAT *) pTaps;
     48     temp = pCoef->A2;
     49     pBiquadState->coefs[0] = temp;
     50     temp = pCoef->A1;
     51     pBiquadState->coefs[1] = temp;
     52     temp = pCoef->A0;
     53     pBiquadState->coefs[2] = temp;
     54     temp = pCoef->B2;
     55     pBiquadState->coefs[3] = temp;
     56     temp = pCoef->B1;
     57     pBiquadState->coefs[4] = temp;
     58 }
     59 #else
     60 void BQ_2I_D32F32Cll_TRC_WRA_01_Init (   Biquad_Instance_t         *pInstance,
     61                                          Biquad_2I_Order2_Taps_t   *pTaps,
     62                                          BQ_C32_Coefs_t            *pCoef)
     63 {
     64   LVM_INT32 temp;
     65   PFilter_State pBiquadState = (PFilter_State) pInstance;
     66   pBiquadState->pDelays      =(LVM_INT32 *) pTaps            ;
     67 
     68   temp=pCoef->A2;
     69   pBiquadState->coefs[0]=temp;
     70   temp=pCoef->A1;
     71   pBiquadState->coefs[1]=temp;
     72   temp=pCoef->A0;
     73   pBiquadState->coefs[2]=temp;
     74   temp=pCoef->B2;
     75   pBiquadState->coefs[3]=temp;
     76   temp=pCoef->B1;
     77   pBiquadState->coefs[4]=temp;
     78 }
     79 #endif
     80 /*-------------------------------------------------------------------------*/
     81 /* End Of File: BQ_2I_D32F32C32_TRC_WRA_01_Init.c                              */
     82 
     83