12c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*
22c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Copyright (C) 2004-2010 NXP Software
32c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Copyright (C) 2010 The Android Open Source Project
42c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent *
52c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Licensed under the Apache License, Version 2.0 (the "License");
62c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * you may not use this file except in compliance with the License.
72c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * You may obtain a copy of the License at
82c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent *
92c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent *      http://www.apache.org/licenses/LICENSE-2.0
102c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent *
112c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * Unless required by applicable law or agreed to in writing, software
122c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * distributed under the License is distributed on an "AS IS" BASIS,
132c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
142c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * See the License for the specific language governing permissions and
152c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent * limitations under the License.
162c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent */
172c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent
182c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*-------------------------------------------------------------------------*/
192c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#include "BIQUAD.h"
202c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#include "BP_1I_D16F16Css_TRC_WRA_01_Private.h"
212c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent
222c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent
232c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*-------------------------------------------------------------------------*/
242c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* FUNCTION:                                                               */
252c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*   BP_1I_D16F16Css_TRC_WRA_01_Init                                       */
262c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*                                                                         */
272c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* DESCRIPTION:                                                            */
282c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*   These functions initializes a BIQUAD filter defined as a cascade of   */
292c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*   biquadratic Filter Sections.                                          */
302c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*                                                                         */
312c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* PARAMETERS:                                                             */
322c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*   pInstance    - output, returns the pointer to the State Variable      */
332c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*                   This state pointer must be passed to any subsequent   */
342c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*                   call to "Biquad" functions.                           */
352c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*   pTaps         - input, pointer to the taps memory                     */
362c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*   pCoef         - input, pointer to the coefficient structure           */
372c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*   N             - M coefficient factor of QM.N                          */
382c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* RETURNS:                                                                */
392c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*   void return code                                                      */
402c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*-------------------------------------------------------------------------*/
41d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri#ifdef BUILD_FLOAT
42d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katurivoid BP_1I_D16F16Css_TRC_WRA_01_Init (   Biquad_FLOAT_Instance_t          *pInstance,
43d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri                                         Biquad_1I_Order2_FLOAT_Taps_t    *pTaps,
44d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri                                         BP_FLOAT_Coefs_t                  *pCoef)
45d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri{
46d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri    PFilter_State_FLOAT pBiquadState = (PFilter_State_FLOAT) pInstance;
47d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri    pBiquadState->pDelays      = (LVM_FLOAT *) pTaps;
48d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri
49d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri    pBiquadState->coefs[0] = pCoef->A0;
50d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri    pBiquadState->coefs[1] = pCoef->B2;
51d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri    pBiquadState->coefs[2] = pCoef->B1;
52d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri}
53d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri#else
542c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurentvoid BP_1I_D16F16Css_TRC_WRA_01_Init (   Biquad_Instance_t         *pInstance,
552c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent                                         Biquad_1I_Order2_Taps_t   *pTaps,
562c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent                                         BP_C16_Coefs_t            *pCoef)
572c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent{
582c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent  PFilter_State pBiquadState = (PFilter_State) pInstance;
592c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent  pBiquadState->pDelays      =(LVM_INT32 *) pTaps;
602c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent
612c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent  pBiquadState->coefs[0]=pCoef->A0;
622c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent  pBiquadState->coefs[1]=pCoef->B2;
632c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent  pBiquadState->coefs[2]=pCoef->B1;
642c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent  }
65d7d013446a64c6de9f0f2dfe098a721b140e0b48Ramesh Katuri#endif
662c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*-------------------------------------------------------------------------*/
672c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* End Of File: BP_1I_D16F16Css_TRC_WRA_01_Init.c                              */
682c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent
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