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 "BP_1I_D16F16Css_TRC_WRA_01_Private.h"
21 
22 
23 /*-------------------------------------------------------------------------*/
24 /* FUNCTION:                                                               */
25 /*   BP_1I_D16F16Css_TRC_WRA_01_Init                                       */
26 /*                                                                         */
27 /* DESCRIPTION:                                                            */
28 /*   These functions initializes a BIQUAD filter defined as a cascade of   */
29 /*   biquadratic Filter Sections.                                          */
30 /*                                                                         */
31 /* PARAMETERS:                                                             */
32 /*   pInstance    - output, returns the pointer to the State Variable      */
33 /*                   This state pointer must be passed to any subsequent   */
34 /*                   call to "Biquad" functions.                           */
35 /*   pTaps         - input, pointer to the taps memory                     */
36 /*   pCoef         - input, pointer to the coefficient structure           */
37 /*   N             - M coefficient factor of QM.N                          */
38 /* RETURNS:                                                                */
39 /*   void return code                                                      */
40 /*-------------------------------------------------------------------------*/
BP_1I_D16F16Css_TRC_WRA_01_Init(Biquad_Instance_t * pInstance,Biquad_1I_Order2_Taps_t * pTaps,BP_C16_Coefs_t * pCoef)41 void BP_1I_D16F16Css_TRC_WRA_01_Init (   Biquad_Instance_t         *pInstance,
42                                          Biquad_1I_Order2_Taps_t   *pTaps,
43                                          BP_C16_Coefs_t            *pCoef)
44 {
45   PFilter_State pBiquadState = (PFilter_State) pInstance;
46   pBiquadState->pDelays      =(LVM_INT32 *) pTaps;
47 
48   pBiquadState->coefs[0]=pCoef->A0;
49   pBiquadState->coefs[1]=pCoef->B2;
50   pBiquadState->coefs[2]=pCoef->B1;
51   }
52 /*-------------------------------------------------------------------------*/
53 /* End Of File: BP_1I_D16F16Css_TRC_WRA_01_Init.c                              */
54 
55