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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 #include "BIQUAD.h"
     19 #include "FO_1I_D32F32Cll_TRC_WRA_01_Private.h"
     20 
     21 
     22 /*-------------------------------------------------------------------------*/
     23 /* FUNCTION:                                                               */
     24 /*   FO_1I_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 FO_1I_D32F32Cll_TRC_WRA_01_Init( Biquad_FLOAT_Instance_t         *pInstance,
     42                                       Biquad_1I_Order1_FLOAT_Taps_t   *pTaps,
     43                                       FO_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 
     49     temp = pCoef->A1;
     50     pBiquadState->coefs[0] = temp;
     51     temp = pCoef->A0;
     52     pBiquadState->coefs[1] = temp;
     53     temp = pCoef->B1;
     54     pBiquadState->coefs[2] = temp;
     55 }
     56 #else
     57 void FO_1I_D32F32Cll_TRC_WRA_01_Init( Biquad_Instance_t         *pInstance,
     58                                       Biquad_1I_Order1_Taps_t   *pTaps,
     59                                       FO_C32_Coefs_t            *pCoef)
     60 {
     61   LVM_INT32 temp;
     62   PFilter_State pBiquadState = (PFilter_State)  pInstance;
     63   pBiquadState->pDelays      = (LVM_INT32 *)    pTaps;
     64 
     65   temp=pCoef->A1;
     66   pBiquadState->coefs[0]=temp;
     67   temp=pCoef->A0;
     68   pBiquadState->coefs[1]=temp;
     69   temp=pCoef->B1;
     70   pBiquadState->coefs[2]=temp;
     71 }
     72 #endif
     73 /*------------------------------------------------*/
     74 /* End Of File: FO_1I_D32F32Cll_TRC_WRA_01_Init.c */
     75 
     76