BQ_1I_D16F32Css_TRC_WRA_01_init.c revision 2c8e5cab3faa6d360e222b7a6c40a80083d021ac
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/* $Author: beq07716 $*/ 202c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* $Revision: 1000 $*/ 212c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* $Date: 2010-06-28 13:08:20 +0200 (Mon, 28 Jun 2010) $*/ 222c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 232c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*-------------------------------------------------------------------------*/ 242c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#include "BIQUAD.h" 252c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent#include "BQ_1I_D16F32Css_TRC_WRA_01_Private.h" 262c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 272c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 282c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*-------------------------------------------------------------------------*/ 292c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* FUNCTION: */ 302c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* BQ_1I_D16F32Css_TRC_WRA_01_Init */ 312c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 322c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* DESCRIPTION: */ 332c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* These functions initializes a BIQUAD filter defined as a cascade of */ 342c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* biquadratic Filter Sections. */ 352c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* */ 362c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* PARAMETERS: */ 372c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* pInstance - output, returns the pointer to the State Variable */ 382c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* This state pointer must be passed to any subsequent */ 392c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* call to "Biquad" functions. */ 402c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* pTaps - input, pointer to the taps memory */ 412c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* pCoef - input, pointer to the coefficient structure */ 422c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* N - M coefficient factor of QM.N */ 432c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* RETURNS: */ 442c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* void return code */ 452c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*-------------------------------------------------------------------------*/ 462c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurentvoid BQ_1I_D16F32Css_TRC_WRA_01_Init ( Biquad_Instance_t *pInstance, 472c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent Biquad_1I_Order2_Taps_t *pTaps, 482c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent BQ_C16_Coefs_t *pCoef) 492c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent{ 502c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent LVM_INT16 temp; 512c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent PFilter_State pBiquadState = (PFilter_State) pInstance; 522c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pBiquadState->pDelays =(LVM_INT32 *) pTaps ; 532c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 542c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent temp=pCoef->A2; 552c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pBiquadState->coefs[0]=temp; 562c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent temp=pCoef->A1; 572c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pBiquadState->coefs[1]=temp; 582c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent temp=pCoef->A0; 592c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pBiquadState->coefs[2]=temp; 602c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent temp=pCoef->B2; 612c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pBiquadState->coefs[3]=temp; 622c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent temp=pCoef->B1; 632c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent pBiquadState->coefs[4]=temp; 642c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent} 652c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/*-------------------------------------------------------------------------*/ 662c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent/* End Of File: BQ_1I_D16F32Css_TRC_WRA_01_Init */ 672c8e5cab3faa6d360e222b7a6c40a80083d021acEric Laurent 68