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/*
* Copyright (C) 2004-2010 NXP Software
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _BIQUAD_H_
#define _BIQUAD_H_
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#include "LVM_Types.h"
/**********************************************************************************
INSTANCE MEMORY TYPE DEFINITION
***********************************************************************************/
typedef struct
{
LVM_INT32 Storage[6];
} Biquad_Instance_t;
/**********************************************************************************
COEFFICIENT TYPE DEFINITIONS
***********************************************************************************/
/*** Biquad coefficients **********************************************************/
typedef struct
{
LVM_INT16 A2; /* a2 */
LVM_INT16 A1; /* a1 */
LVM_INT16 A0; /* a0 */
LVM_INT16 B2; /* -b2! */
LVM_INT16 B1; /* -b1! */
} BQ_C16_Coefs_t;
typedef struct
{
LVM_INT32 A2; /* a2 */
LVM_INT32 A1; /* a1 */
LVM_INT32 A0; /* a0 */
LVM_INT32 B2; /* -b2! */
LVM_INT32 B1; /* -b1! */
} BQ_C32_Coefs_t;
/*** First order coefficients *****************************************************/
typedef struct
{
LVM_INT16 A1; /* a1 */
LVM_INT16 A0; /* a0 */
LVM_INT16 B1; /* -b1! */
} FO_C16_Coefs_t;
typedef struct
{
LVM_INT32 A1; /* a1 */
LVM_INT32 A0; /* a0 */
LVM_INT32 B1; /* -b1! */
} FO_C32_Coefs_t;
/*** First order coefficients with Shift*****************************************************/
typedef struct
{
LVM_INT16 A1; /* a1 */
LVM_INT16 A0; /* a0 */
LVM_INT16 B1; /* -b1! */
LVM_INT16 Shift; /* Shift */
} FO_C16_LShx_Coefs_t;
/*** Band pass coefficients *******************************************************/
typedef struct
{
LVM_INT16 A0; /* a0 */
LVM_INT16 B2; /* -b2! */
LVM_INT16 B1; /* -b1! */
} BP_C16_Coefs_t;
typedef struct
{
LVM_INT32 A0; /* a0 */
LVM_INT32 B2; /* -b2! */
LVM_INT32 B1; /* -b1! */
} BP_C32_Coefs_t;
/*** Peaking coefficients *********************************************************/
typedef struct
{
LVM_INT16 A0; /* a0 */
LVM_INT16 B2; /* -b2! */
LVM_INT16 B1; /* -b1! */
LVM_INT16 G; /* Gain */
} PK_C16_Coefs_t;
typedef struct
{
LVM_INT32 A0; /* a0 */
LVM_INT32 B2; /* -b2! */
LVM_INT32 B1; /* -b1! */
LVM_INT16 G; /* Gain */
} PK_C32_Coefs_t;
/**********************************************************************************
TAPS TYPE DEFINITIONS
***********************************************************************************/
/*** Types used for first order and shelving filter *******************************/
typedef struct
{
LVM_INT32 Storage[ (1*2) ]; /* One channel, two taps of size LVM_INT32 */
} Biquad_1I_Order1_Taps_t;
typedef struct
{
LVM_INT32 Storage[ (2*2) ]; /* Two channels, two taps of size LVM_INT32 */
} Biquad_2I_Order1_Taps_t;
/*** Types used for biquad, band pass and peaking filter **************************/
typedef struct
{
LVM_INT32 Storage[ (1*4) ]; /* One channel, four taps of size LVM_INT32 */
} Biquad_1I_Order2_Taps_t;
typedef struct
{
LVM_INT32 Storage[ (2*4) ]; /* Two channels, four taps of size LVM_INT32 */
} Biquad_2I_Order2_Taps_t;
/* The names of the functions are changed to satisfy QAC rules: Name should be Unique withing 16 characters*/
#define BQ_2I_D32F32Cll_TRC_WRA_01_Init Init_BQ_2I_D32F32Cll_TRC_WRA_01
#define BP_1I_D32F32C30_TRC_WRA_02 TWO_BP_1I_D32F32C30_TRC_WRA_02
/**********************************************************************************
FUNCTION PROTOTYPES: BIQUAD FILTERS
***********************************************************************************/
/*** 16 bit data path *************************************************************/
void BQ_2I_D16F32Css_TRC_WRA_01_Init ( Biquad_Instance_t *pInstance,
Biquad_2I_Order2_Taps_t *pTaps,
BQ_C16_Coefs_t *pCoef);
void BQ_2I_D16F32C15_TRC_WRA_01 ( Biquad_Instance_t *pInstance,
LVM_INT16 *pDataIn,
LVM_INT16 *pDataOut,
LVM_INT16 NrSamples);
void BQ_2I_D16F32C14_TRC_WRA_01 ( Biquad_Instance_t *pInstance,
LVM_INT16 *pDataIn,
LVM_INT16 *pDataOut,
LVM_INT16 NrSamples);
void BQ_2I_D16F32C13_TRC_WRA_01 ( Biquad_Instance_t *pInstance,
LVM_INT16 *pDataIn,
LVM_INT16 *pDataOut,
LVM_INT16 NrSamples);
void BQ_2I_D16F16Css_TRC_WRA_01_Init ( Biquad_Instance_t *pInstance,
Biquad_2I_Order2_Taps_t *pTaps,
BQ_C16_Coefs_t *pCoef);
void BQ_2I_D16F16C15_TRC_WRA_01( Biquad_Instance_t *pInstance,
LVM_INT16 *pDataIn,
LVM_INT16 *pDataOut,
LVM_INT16 NrSamples);
void BQ_2I_D16F16C14_TRC_WRA_01( Biquad_Instance_t *pInstance,
LVM_INT16 *pDataIn,
LVM_INT16 *pDataOut,
LVM_INT16 NrSamples);
void BQ_1I_D16F16Css_TRC_WRA_01_Init ( Biquad_Instance_t *pInstance,
Biquad_1I_Order2_Taps_t *pTaps,
BQ_C16_Coefs_t *pCoef);
void BQ_1I_D16F16C15_TRC_WRA_01( Biquad_Instance_t *pInstance,
LVM_INT16 *pDataIn,
LVM_INT16 *pDataOut,
LVM_INT16 NrSamples);
void BQ_1I_D16F32Css_TRC_WRA_01_Init ( Biquad_Instance_t *pInstance,
Biquad_1I_Order2_Taps_t *pTaps,
BQ_C16_Coefs_t *pCoef);
void BQ_1I_D16F32C14_TRC_WRA_01 ( Biquad_Instance_t *pInstance,
LVM_INT16 *pDataIn,
LVM_INT16 *pDataOut,
LVM_INT16 NrSamples);
/*** 32 bit data path *************************************************************/
void BQ_2I_D32F32Cll_TRC_WRA_01_Init ( Biquad_Instance_t *pInstance,
Biquad_2I_Order2_Taps_t *pTaps,
BQ_C32_Coefs_t *pCoef);
void BQ_2I_D32F32C30_TRC_WRA_01 ( Biquad_Instance_t *pInstance,
LVM_INT32 *pDataIn,
LVM_INT32 *pDataOut,
LVM_INT16 NrSamples);
/**********************************************************************************
FUNCTION PROTOTYPES: FIRST ORDER FILTERS
***********************************************************************************/
/*** 16 bit data path *************************************************************/
void FO_1I_D16F16Css_TRC_WRA_01_Init( Biquad_Instance_t *pInstance,
Biquad_1I_Order1_Taps_t *pTaps,
FO_C16_Coefs_t *pCoef);
void FO_1I_D16F16C15_TRC_WRA_01( Biquad_Instance_t *pInstance,
LVM_INT16 *pDataIn,
LVM_INT16 *pDataOut,
LVM_INT16 NrSamples);
void FO_2I_D16F32Css_LShx_TRC_WRA_01_Init(Biquad_Instance_t *pInstance,
Biquad_2I_Order1_Taps_t *pTaps,
FO_C16_LShx_Coefs_t *pCoef);
void FO_2I_D16F32C15_LShx_TRC_WRA_01(Biquad_Instance_t *pInstance,
LVM_INT16 *pDataIn,
LVM_INT16 *pDataOut,
LVM_INT16 NrSamples);
/*** 32 bit data path *************************************************************/
void FO_1I_D32F32Cll_TRC_WRA_01_Init( Biquad_Instance_t *pInstance,
Biquad_1I_Order1_Taps_t *pTaps,
FO_C32_Coefs_t *pCoef);
void FO_1I_D32F32C31_TRC_WRA_01( Biquad_Instance_t *pInstance,
LVM_INT32 *pDataIn,
LVM_INT32 *pDataOut,
LVM_INT16 NrSamples);
/**********************************************************************************
FUNCTION PROTOTYPES: BAND PASS FILTERS
***********************************************************************************/
/*** 16 bit data path *************************************************************/
void BP_1I_D16F16Css_TRC_WRA_01_Init ( Biquad_Instance_t *pInstance,
Biquad_1I_Order2_Taps_t *pTaps,
BP_C16_Coefs_t *pCoef);
void BP_1I_D16F16C14_TRC_WRA_01 ( Biquad_Instance_t *pInstance,
LVM_INT16 *pDataIn,
LVM_INT16 *pDataOut,
LVM_INT16 NrSamples);
void BP_1I_D16F32Cll_TRC_WRA_01_Init ( Biquad_Instance_t *pInstance,
Biquad_1I_Order2_Taps_t *pTaps,
BP_C32_Coefs_t *pCoef);
void BP_1I_D16F32C30_TRC_WRA_01 ( Biquad_Instance_t *pInstance,
LVM_INT16 *pDataIn,
LVM_INT16 *pDataOut,
LVM_INT16 NrSamples);
/*** 32 bit data path *************************************************************/
void BP_1I_D32F32Cll_TRC_WRA_02_Init ( Biquad_Instance_t *pInstance,
Biquad_1I_Order2_Taps_t *pTaps,
BP_C32_Coefs_t *pCoef);
void BP_1I_D32F32C30_TRC_WRA_02( Biquad_Instance_t *pInstance,
LVM_INT32 *pDataIn,
LVM_INT32 *pDataOut,
LVM_INT16 NrSamples);
/*** 32 bit data path STEREO ******************************************************/
void PK_2I_D32F32CllGss_TRC_WRA_01_Init ( Biquad_Instance_t *pInstance,
Biquad_2I_Order2_Taps_t *pTaps,
PK_C32_Coefs_t *pCoef);
void PK_2I_D32F32C30G11_TRC_WRA_01 ( Biquad_Instance_t *pInstance,
LVM_INT32 *pDataIn,
LVM_INT32 *pDataOut,
LVM_INT16 NrSamples);
void PK_2I_D32F32CssGss_TRC_WRA_01_Init ( Biquad_Instance_t *pInstance,
Biquad_2I_Order2_Taps_t *pTaps,
PK_C16_Coefs_t *pCoef);
void PK_2I_D32F32C14G11_TRC_WRA_01 ( Biquad_Instance_t *pInstance,
LVM_INT32 *pDataIn,
LVM_INT32 *pDataOut,
LVM_INT16 NrSamples);
/**********************************************************************************
FUNCTION PROTOTYPES: DC REMOVAL FILTERS
***********************************************************************************/
/*** 16 bit data path STEREO ******************************************************/
void DC_2I_D16_TRC_WRA_01_Init ( Biquad_Instance_t *pInstance);
void DC_2I_D16_TRC_WRA_01 ( Biquad_Instance_t *pInstance,
LVM_INT16 *pDataIn,
LVM_INT16 *pDataOut,
LVM_INT16 NrSamples);
#ifdef __cplusplus
}
#endif /* __cplusplus */
/**********************************************************************************/
#endif /** _BIQUAD_H_ **/
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