5740 lines
190 KiB
C
5740 lines
190 KiB
C
/*
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* Copyright (C) 2016-2020 T-head Limited. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an AS IS BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/******************************************************************************
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* @file csi_math.h
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* @brief Some common define
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* @version V1.0
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* @date Feb. 2020
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******************************************************************************/
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#ifndef _CSI_MATH_H
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#define _CSI_MATH_H
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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#include <string.h>
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#include <math.h>
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#include <float.h>
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#include <limits.h>
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#include <unistd.h>
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#include "csi_instance.h"
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/**
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* @brief Processing function for the Q7 FIR filter.
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* @param[in] S points to an instance of the Q7 FIR filter structure.
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* @param[in] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data.
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* @param[in] blockSize number of samples to process.
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*/
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void csi_fir_q7(
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const csi_fir_instance_q7 * S,
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const q7_t * pSrc,
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q7_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Initialization function for the Q7 FIR filter.
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* @param[in,out] S points to an instance of the Q7 FIR structure.
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* @param[in] numTaps Number of filter coefficients in the filter.
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* @param[in] pCoeffs points to the filter coefficients.
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* @param[in] pState points to the state buffer.
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* @param[in] blockSize number of samples that are processed.
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*/
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void csi_fir_init_q7(
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csi_fir_instance_q7 * S,
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uint16_t numTaps,
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const q7_t * pCoeffs,
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q7_t * pState,
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uint32_t blockSize);
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/**
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* @brief Processing function for the Q15 FIR filter.
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* @param[in] S points to an instance of the Q15 FIR structure.
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* @param[in] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data.
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* @param[in] blockSize number of samples to process.
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*/
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void csi_fir_q15(
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const csi_fir_instance_q15 * S,
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const q15_t * pSrc,
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q15_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Processing function for the fast Q15 FIR filter (fast version).
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* @param[in] S points to an instance of the Q15 FIR filter structure.
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* @param[in] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data.
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* @param[in] blockSize number of samples to process.
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*/
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void csi_fir_fast_q15(
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const csi_fir_instance_q15 * S,
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const q15_t * pSrc,
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q15_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Initialization function for the Q15 FIR filter.
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* @param[in,out] S points to an instance of the Q15 FIR filter structure.
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* @param[in] numTaps Number of filter coefficients in the filter. Must be even and greater than or equal to 4.
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* @param[in] pCoeffs points to the filter coefficients.
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* @param[in] pState points to the state buffer.
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* @param[in] blockSize number of samples that are processed at a time.
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* @return The function returns either
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* <code>CSI_MATH_SUCCESS</code> if initialization was successful or
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* <code>CSI_MATH_ARGUMENT_ERROR</code> if <code>numTaps</code> is not a supported value.
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*/
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csi_status csi_fir_init_q15(
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csi_fir_instance_q15 * S,
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uint16_t numTaps,
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const q15_t * pCoeffs,
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q15_t * pState,
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uint32_t blockSize);
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/**
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* @brief Processing function for the Q31 FIR filter.
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* @param[in] S points to an instance of the Q31 FIR filter structure.
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* @param[in] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data.
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* @param[in] blockSize number of samples to process.
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*/
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void csi_fir_q31(
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const csi_fir_instance_q31 * S,
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const q31_t * pSrc,
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q31_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Processing function for the fast Q31 FIR filter (fast version).
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* @param[in] S points to an instance of the Q31 FIR filter structure.
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* @param[in] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data.
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* @param[in] blockSize number of samples to process.
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*/
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void csi_fir_fast_q31(
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const csi_fir_instance_q31 * S,
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const q31_t * pSrc,
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q31_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Initialization function for the Q31 FIR filter.
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* @param[in,out] S points to an instance of the Q31 FIR structure.
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* @param[in] numTaps Number of filter coefficients in the filter.
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* @param[in] pCoeffs points to the filter coefficients.
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* @param[in] pState points to the state buffer.
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* @param[in] blockSize number of samples that are processed at a time.
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*/
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void csi_fir_init_q31(
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csi_fir_instance_q31 * S,
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uint16_t numTaps,
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const q31_t * pCoeffs,
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q31_t * pState,
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uint32_t blockSize);
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/**
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* @brief Processing function for the floating-point FIR filter.
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* @param[in] S points to an instance of the floating-point FIR structure.
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* @param[in] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data.
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* @param[in] blockSize number of samples to process.
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*/
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void csi_fir_f32(
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const csi_fir_instance_f32 * S,
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const float32_t * pSrc,
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float32_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Initialization function for the floating-point FIR filter.
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* @param[in,out] S points to an instance of the floating-point FIR filter structure.
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* @param[in] numTaps Number of filter coefficients in the filter.
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* @param[in] pCoeffs points to the filter coefficients.
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* @param[in] pState points to the state buffer.
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* @param[in] blockSize number of samples that are processed at a time.
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*/
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void csi_fir_init_f32(
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csi_fir_instance_f32 * S,
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uint16_t numTaps,
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const float32_t * pCoeffs,
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float32_t * pState,
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uint32_t blockSize);
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/**
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* @brief Processing function for the Q15 Biquad cascade filter.
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* @param[in] S points to an instance of the Q15 Biquad cascade structure.
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* @param[in] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data.
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* @param[in] blockSize number of samples to process.
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*/
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void csi_biquad_cascade_df1_q15(
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const csi_biquad_casd_df1_inst_q15 * S,
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const q15_t * pSrc,
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q15_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Initialization function for the Q15 Biquad cascade filter.
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* @param[in,out] S points to an instance of the Q15 Biquad cascade structure.
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* @param[in] numStages number of 2nd order stages in the filter.
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* @param[in] pCoeffs points to the filter coefficients.
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* @param[in] pState points to the state buffer.
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* @param[in] postShift Shift to be applied to the output. Varies according to the coefficients format
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*/
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void csi_biquad_cascade_df1_init_q15(
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csi_biquad_casd_df1_inst_q15 * S,
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uint8_t numStages,
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const q15_t * pCoeffs,
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q15_t * pState,
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int8_t postShift);
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/**
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* @brief Fast but less precise processing function for the Q15 Biquad cascade filter for Cortex-M3 and Cortex-M4.
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* @param[in] S points to an instance of the Q15 Biquad cascade structure.
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* @param[in] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data.
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* @param[in] blockSize number of samples to process.
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*/
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void csi_biquad_cascade_df1_fast_q15(
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const csi_biquad_casd_df1_inst_q15 * S,
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const q15_t * pSrc,
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q15_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Processing function for the Q31 Biquad cascade filter
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* @param[in] S points to an instance of the Q31 Biquad cascade structure.
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* @param[in] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data.
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* @param[in] blockSize number of samples to process.
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*/
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void csi_biquad_cascade_df1_q31(
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const csi_biquad_casd_df1_inst_q31 * S,
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const q31_t * pSrc,
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q31_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Fast but less precise processing function for the Q31 Biquad cascade filter for Cortex-M3 and Cortex-M4.
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* @param[in] S points to an instance of the Q31 Biquad cascade structure.
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* @param[in] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data.
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* @param[in] blockSize number of samples to process.
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*/
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void csi_biquad_cascade_df1_fast_q31(
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const csi_biquad_casd_df1_inst_q31 * S,
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const q31_t * pSrc,
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q31_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Initialization function for the Q31 Biquad cascade filter.
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* @param[in,out] S points to an instance of the Q31 Biquad cascade structure.
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* @param[in] numStages number of 2nd order stages in the filter.
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* @param[in] pCoeffs points to the filter coefficients.
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* @param[in] pState points to the state buffer.
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* @param[in] postShift Shift to be applied to the output. Varies according to the coefficients format
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*/
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void csi_biquad_cascade_df1_init_q31(
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csi_biquad_casd_df1_inst_q31 * S,
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uint8_t numStages,
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const q31_t * pCoeffs,
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q31_t * pState,
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int8_t postShift);
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/**
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* @brief Processing function for the floating-point Biquad cascade filter.
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* @param[in] S points to an instance of the floating-point Biquad cascade structure.
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* @param[in] pSrc points to the block of input data.
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* @param[out] pDst points to the block of output data.
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* @param[in] blockSize number of samples to process.
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*/
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void csi_biquad_cascade_df1_f32(
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const csi_biquad_casd_df1_inst_f32 * S,
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const float32_t * pSrc,
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float32_t * pDst,
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uint32_t blockSize);
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/**
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* @brief Initialization function for the floating-point Biquad cascade filter.
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* @param[in,out] S points to an instance of the floating-point Biquad cascade structure.
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* @param[in] numStages number of 2nd order stages in the filter.
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* @param[in] pCoeffs points to the filter coefficients.
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* @param[in] pState points to the state buffer.
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*/
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void csi_biquad_cascade_df1_init_f32(
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csi_biquad_casd_df1_inst_f32 * S,
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uint8_t numStages,
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const float32_t * pCoeffs,
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float32_t * pState);
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/**
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* @brief Floating-point matrix addition.
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* @param[in] pSrcA points to the first input matrix structure
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* @param[in] pSrcB points to the second input matrix structure
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* @param[out] pDst points to output matrix structure
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* @return The function returns either
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* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
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*/
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csi_status csi_mat_add_f32(
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const csi_matrix_instance_f32 * pSrcA,
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const csi_matrix_instance_f32 * pSrcB,
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csi_matrix_instance_f32 * pDst);
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/**
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* @brief Q15 matrix addition.
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* @param[in] pSrcA points to the first input matrix structure
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* @param[in] pSrcB points to the second input matrix structure
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* @param[out] pDst points to output matrix structure
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* @return The function returns either
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* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
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*/
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csi_status csi_mat_add_q15(
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const csi_matrix_instance_q15 * pSrcA,
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const csi_matrix_instance_q15 * pSrcB,
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csi_matrix_instance_q15 * pDst);
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/**
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* @brief Q31 matrix addition.
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* @param[in] pSrcA points to the first input matrix structure
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* @param[in] pSrcB points to the second input matrix structure
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* @param[out] pDst points to output matrix structure
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* @return The function returns either
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* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
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*/
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csi_status csi_mat_add_q31(
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const csi_matrix_instance_q31 * pSrcA,
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const csi_matrix_instance_q31 * pSrcB,
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csi_matrix_instance_q31 * pDst);
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/**
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* @brief Floating-point, complex, matrix multiplication.
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* @param[in] pSrcA points to the first input matrix structure
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* @param[in] pSrcB points to the second input matrix structure
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* @param[out] pDst points to output matrix structure
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* @return The function returns either
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* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
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*/
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csi_status csi_mat_cmplx_mult_f32(
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const csi_matrix_instance_f32 * pSrcA,
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const csi_matrix_instance_f32 * pSrcB,
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csi_matrix_instance_f32 * pDst);
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/**
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* @brief Q15, complex, matrix multiplication.
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* @param[in] pSrcA points to the first input matrix structure
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* @param[in] pSrcB points to the second input matrix structure
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* @param[out] pDst points to output matrix structure
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* @return The function returns either
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* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
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*/
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csi_status csi_mat_cmplx_mult_q15(
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const csi_matrix_instance_q15 * pSrcA,
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const csi_matrix_instance_q15 * pSrcB,
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csi_matrix_instance_q15 * pDst);
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void csi_mult_q15xq31_sht(
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q15_t * pSrcA,
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q31_t * pSrcB,
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uint32_t shiftValue,
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uint32_t blockSize);
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/**
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* @brief Q31, complex, matrix multiplication.
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* @param[in] pSrcA points to the first input matrix structure
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* @param[in] pSrcB points to the second input matrix structure
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* @param[out] pDst points to output matrix structure
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* @return The function returns either
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* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
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*/
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csi_status csi_mat_cmplx_mult_q31(
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const csi_matrix_instance_q31 * pSrcA,
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const csi_matrix_instance_q31 * pSrcB,
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csi_matrix_instance_q31 * pDst);
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/**
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* @brief Floating-point matrix transpose.
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* @param[in] pSrc points to the input matrix
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* @param[out] pDst points to the output matrix
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* @return The function returns either <code>CSI_MATH_SIZE_MISMATCH</code>
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* or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
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*/
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csi_status csi_mat_trans_f32(
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const csi_matrix_instance_f32 * pSrc,
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csi_matrix_instance_f32 * pDst);
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/**
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* @brief Q15 matrix transpose.
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* @param[in] pSrc points to the input matrix
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* @param[out] pDst points to the output matrix
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* @return The function returns either <code>CSI_MATH_SIZE_MISMATCH</code>
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* or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
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*/
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csi_status csi_mat_trans_q15(
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const csi_matrix_instance_q15 * pSrc,
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csi_matrix_instance_q15 * pDst);
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/**
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* @brief Q31 matrix transpose.
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* @param[in] pSrc points to the input matrix
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* @param[out] pDst points to the output matrix
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* @return The function returns either <code>CSI_MATH_SIZE_MISMATCH</code>
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* or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
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*/
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csi_status csi_mat_trans_q31(
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const csi_matrix_instance_q31 * pSrc,
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csi_matrix_instance_q31 * pDst);
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/**
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* @brief Floating-point matrix multiplication
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* @param[in] pSrcA points to the first input matrix structure
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* @param[in] pSrcB points to the second input matrix structure
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* @param[out] pDst points to output matrix structure
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* @return The function returns either
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* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
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*/
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csi_status csi_mat_mult_f32(
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const csi_matrix_instance_f32 * pSrcA,
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const csi_matrix_instance_f32 * pSrcB,
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csi_matrix_instance_f32 * pDst);
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/**
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* @brief Q15 matrix multiplication
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* @param[in] pSrcA points to the first input matrix structure
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* @param[in] pSrcB points to the second input matrix structure
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* @param[out] pDst points to output matrix structure
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* @return The function returns either
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* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
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*/
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csi_status csi_mat_mult_q15(
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const csi_matrix_instance_q15 * pSrcA,
|
|
const csi_matrix_instance_q15 * pSrcB,
|
|
csi_matrix_instance_q15 * pDst);
|
|
|
|
csi_status csi_mat_mult_trans_q15(
|
|
const csi_matrix_instance_q15 * pSrcA,
|
|
const csi_matrix_instance_q15 * pSrcB,
|
|
csi_matrix_instance_q15 * pDst);
|
|
|
|
/**
|
|
* @brief Q15 matrix multiplication (fast variant) for Cortex-M3 and Cortex-M4
|
|
* @param[in] pSrcA points to the first input matrix structure
|
|
* @param[in] pSrcB points to the second input matrix structure
|
|
* @param[out] pDst points to output matrix structure
|
|
* @param[in] pState points to the array for storing intermediate results
|
|
* @return The function returns either
|
|
* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
|
|
*/
|
|
csi_status csi_mat_mult_fast_q15(
|
|
const csi_matrix_instance_q15 * pSrcA,
|
|
const csi_matrix_instance_q15 * pSrcB,
|
|
csi_matrix_instance_q15 * pDst);
|
|
|
|
/**
|
|
* @brief Q31 matrix multiplication
|
|
* @param[in] pSrcA points to the first input matrix structure
|
|
* @param[in] pSrcB points to the second input matrix structure
|
|
* @param[out] pDst points to output matrix structure
|
|
* @return The function returns either
|
|
* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
|
|
*/
|
|
csi_status csi_mat_mult_q31(
|
|
const csi_matrix_instance_q31 * pSrcA,
|
|
const csi_matrix_instance_q31 * pSrcB,
|
|
csi_matrix_instance_q31 * pDst);
|
|
|
|
csi_status csi_mat_mult_trans_q31(
|
|
const csi_matrix_instance_q31 * pSrcA,
|
|
const csi_matrix_instance_q31 * pSrcB,
|
|
csi_matrix_instance_q31 * pDst);
|
|
|
|
/**
|
|
* @brief Q31 matrix multiplication (fast variant) for Cortex-M3 and Cortex-M4
|
|
* @param[in] pSrcA points to the first input matrix structure
|
|
* @param[in] pSrcB points to the second input matrix structure
|
|
* @param[out] pDst points to output matrix structure
|
|
* @return The function returns either
|
|
* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
|
|
*/
|
|
csi_status csi_mat_mult_fast_q31(
|
|
const csi_matrix_instance_q31 * pSrcA,
|
|
const csi_matrix_instance_q31 * pSrcB,
|
|
csi_matrix_instance_q31 * pDst);
|
|
|
|
/**
|
|
* @brief Floating-point matrix subtraction
|
|
* @param[in] pSrcA points to the first input matrix structure
|
|
* @param[in] pSrcB points to the second input matrix structure
|
|
* @param[out] pDst points to output matrix structure
|
|
* @return The function returns either
|
|
* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
|
|
*/
|
|
csi_status csi_mat_sub_f32(
|
|
const csi_matrix_instance_f32 * pSrcA,
|
|
const csi_matrix_instance_f32 * pSrcB,
|
|
csi_matrix_instance_f32 * pDst);
|
|
|
|
/**
|
|
* @brief Q15 matrix subtraction
|
|
* @param[in] pSrcA points to the first input matrix structure
|
|
* @param[in] pSrcB points to the second input matrix structure
|
|
* @param[out] pDst points to output matrix structure
|
|
* @return The function returns either
|
|
* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
|
|
*/
|
|
csi_status csi_mat_sub_q15(
|
|
const csi_matrix_instance_q15 * pSrcA,
|
|
const csi_matrix_instance_q15 * pSrcB,
|
|
csi_matrix_instance_q15 * pDst);
|
|
|
|
/**
|
|
* @brief Q31 matrix subtraction
|
|
* @param[in] pSrcA points to the first input matrix structure
|
|
* @param[in] pSrcB points to the second input matrix structure
|
|
* @param[out] pDst points to output matrix structure
|
|
* @return The function returns either
|
|
* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
|
|
*/
|
|
csi_status csi_mat_sub_q31(
|
|
const csi_matrix_instance_q31 * pSrcA,
|
|
const csi_matrix_instance_q31 * pSrcB,
|
|
csi_matrix_instance_q31 * pDst);
|
|
|
|
void csi_sum_q15(
|
|
q15_t * pSrcA,
|
|
q63_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
/**
|
|
* @brief Floating-point matrix scaling.
|
|
* @param[in] pSrc points to the input matrix
|
|
* @param[in] scale scale factor
|
|
* @param[out] pDst points to the output matrix
|
|
* @return The function returns either
|
|
* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
|
|
*/
|
|
csi_status csi_mat_scale_f32(
|
|
const csi_matrix_instance_f32 * pSrc,
|
|
float32_t scale,
|
|
csi_matrix_instance_f32 * pDst);
|
|
|
|
/**
|
|
* @brief Q15 matrix scaling.
|
|
* @param[in] pSrc points to input matrix
|
|
* @param[in] scaleFract fractional portion of the scale factor
|
|
* @param[in] shift number of bits to shift the result by
|
|
* @param[out] pDst points to output matrix
|
|
* @return The function returns either
|
|
* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
|
|
*/
|
|
csi_status csi_mat_scale_q15(
|
|
const csi_matrix_instance_q15 * pSrc,
|
|
q15_t scaleFract,
|
|
int32_t shift,
|
|
csi_matrix_instance_q15 * pDst);
|
|
|
|
/**
|
|
* @brief Q31 matrix scaling.
|
|
* @param[in] pSrc points to input matrix
|
|
* @param[in] scaleFract fractional portion of the scale factor
|
|
* @param[in] shift number of bits to shift the result by
|
|
* @param[out] pDst points to output matrix structure
|
|
* @return The function returns either
|
|
* <code>CSI_MATH_SIZE_MISMATCH</code> or <code>CSI_MATH_SUCCESS</code> based on the outcome of size checking.
|
|
*/
|
|
csi_status csi_mat_scale_q31(
|
|
const csi_matrix_instance_q31 * pSrc,
|
|
q31_t scaleFract,
|
|
int32_t shift,
|
|
csi_matrix_instance_q31 * pDst);
|
|
|
|
/**
|
|
* @brief Q31 matrix initialization.
|
|
* @param[in,out] S points to an instance of the floating-point matrix structure.
|
|
* @param[in] nRows number of rows in the matrix.
|
|
* @param[in] nColumns number of columns in the matrix.
|
|
* @param[in] pData points to the matrix data array.
|
|
*/
|
|
void csi_mat_init_q31(
|
|
csi_matrix_instance_q31 * S,
|
|
uint16_t nRows,
|
|
uint16_t nColumns,
|
|
q31_t * pData);
|
|
|
|
/**
|
|
* @brief Q15 matrix initialization.
|
|
* @param[in,out] S points to an instance of the floating-point matrix structure.
|
|
* @param[in] nRows number of rows in the matrix.
|
|
* @param[in] nColumns number of columns in the matrix.
|
|
* @param[in] pData points to the matrix data array.
|
|
*/
|
|
void csi_mat_init_q15(
|
|
csi_matrix_instance_q15 * S,
|
|
uint16_t nRows,
|
|
uint16_t nColumns,
|
|
q15_t * pData);
|
|
|
|
/**
|
|
* @brief Floating-point matrix initialization.
|
|
* @param[in,out] S points to an instance of the floating-point matrix structure.
|
|
* @param[in] nRows number of rows in the matrix.
|
|
* @param[in] nColumns number of columns in the matrix.
|
|
* @param[in] pData points to the matrix data array.
|
|
*/
|
|
void csi_mat_init_f32(
|
|
csi_matrix_instance_f32 * S,
|
|
uint16_t nRows,
|
|
uint16_t nColumns,
|
|
float32_t * pData);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the floating-point PID Control.
|
|
* @param[in,out] S points to an instance of the PID structure.
|
|
* @param[in] resetStateFlag flag to reset the state. 0 = no change in state 1 = reset the state.
|
|
*/
|
|
void csi_pid_init_f32(
|
|
csi_pid_instance_f32 * S,
|
|
int32_t resetStateFlag);
|
|
|
|
|
|
/**
|
|
* @brief Reset function for the floating-point PID Control.
|
|
* @param[in,out] S is an instance of the floating-point PID Control structure
|
|
*/
|
|
void csi_pid_reset_f32(
|
|
csi_pid_instance_f32 * S);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q31 PID Control.
|
|
* @param[in,out] S points to an instance of the Q15 PID structure.
|
|
* @param[in] resetStateFlag flag to reset the state. 0 = no change in state 1 = reset the state.
|
|
*/
|
|
void csi_pid_init_q31(
|
|
csi_pid_instance_q31 * S,
|
|
int32_t resetStateFlag);
|
|
|
|
|
|
/**
|
|
* @brief Reset function for the Q31 PID Control.
|
|
* @param[in,out] S points to an instance of the Q31 PID Control structure
|
|
*/
|
|
|
|
void csi_pid_reset_q31(
|
|
csi_pid_instance_q31 * S);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q15 PID Control.
|
|
* @param[in,out] S points to an instance of the Q15 PID structure.
|
|
* @param[in] resetStateFlag flag to reset the state. 0 = no change in state 1 = reset the state.
|
|
*/
|
|
void csi_pid_init_q15(
|
|
csi_pid_instance_q15 * S,
|
|
int32_t resetStateFlag);
|
|
|
|
|
|
/**
|
|
* @brief Reset function for the Q15 PID Control.
|
|
* @param[in,out] S points to an instance of the q15 PID Control structure
|
|
*/
|
|
void csi_pid_reset_q15(
|
|
csi_pid_instance_q15 * S);
|
|
|
|
/**
|
|
* @brief Q7 vector multiplication.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_mult_q7(
|
|
const q7_t * pSrcA,
|
|
const q7_t * pSrcB,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Q15 vector multiplication.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_mult_q15(
|
|
const q15_t * pSrcA,
|
|
const q15_t * pSrcB,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
void csi_mult_rnd_q15(
|
|
q15_t * pSrcA,
|
|
q15_t * pSrcB,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Q31 vector multiplication.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_mult_q31(
|
|
const q31_t * pSrcA,
|
|
const q31_t * pSrcB,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Floating-point vector multiplication.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_mult_f32(
|
|
const float32_t * pSrcA,
|
|
const float32_t * pSrcB,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/* Deprecated */
|
|
csi_status csi_cfft_radix2_init_q15(
|
|
csi_cfft_radix2_instance_q15 * S,
|
|
uint16_t fftLen,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag);
|
|
|
|
/* Deprecated */
|
|
void csi_cfft_radix2_q15(
|
|
const csi_cfft_radix2_instance_q15 * S,
|
|
q15_t * pSrc);
|
|
|
|
|
|
/* Deprecated */
|
|
csi_status csi_cfft_radix4_init_q15(
|
|
csi_cfft_radix4_instance_q15 * S,
|
|
uint16_t fftLen,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag);
|
|
|
|
/* Deprecated */
|
|
void csi_cfft_radix4_q15(
|
|
const csi_cfft_radix4_instance_q15 * S,
|
|
q15_t * pSrc);
|
|
|
|
/* Deprecated */
|
|
csi_status csi_cfft_radix2_init_q31(
|
|
csi_cfft_radix2_instance_q31 * S,
|
|
uint16_t fftLen,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag);
|
|
|
|
/* Deprecated */
|
|
void csi_cfft_radix2_q31(
|
|
const csi_cfft_radix2_instance_q31 * S,
|
|
q31_t * pSrc);
|
|
|
|
|
|
/* Deprecated */
|
|
void csi_cfft_radix4_q31(
|
|
const csi_cfft_radix4_instance_q31 * S,
|
|
q31_t * pSrc);
|
|
|
|
/* Deprecated */
|
|
csi_status csi_cfft_radix4_init_q31(
|
|
csi_cfft_radix4_instance_q31 * S,
|
|
uint16_t fftLen,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag);
|
|
|
|
|
|
/* Deprecated */
|
|
csi_status csi_cfft_radix2_init_f32(
|
|
csi_cfft_radix2_instance_f32 * S,
|
|
uint16_t fftLen,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag);
|
|
|
|
/* Deprecated */
|
|
void csi_cfft_radix2_f32(
|
|
const csi_cfft_instance_f32 * S,
|
|
float32_t * p1,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag,
|
|
float32_t onebyfftLen);
|
|
|
|
|
|
/* Deprecated */
|
|
csi_status csi_cfft_radix4_init_f32(
|
|
csi_cfft_radix4_instance_f32 * S,
|
|
uint16_t fftLen,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag);
|
|
|
|
/* Deprecated */
|
|
void csi_cfft_radix4_f32(
|
|
const csi_cfft_instance_f32 * S,
|
|
float32_t * p1,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag,
|
|
float32_t onebyfftLen);
|
|
|
|
void csi_cfft_fast_radix4_f32(
|
|
const csi_cfft_instance_f32 * S,
|
|
float32_t * p1,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag,
|
|
float32_t onebyfftLen);
|
|
|
|
|
|
void csi_cfft_q15(
|
|
const csi_cfft_instance_q15 * S,
|
|
q15_t * p1,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag);
|
|
|
|
void csi_cfft_fast_q15(
|
|
const csi_cfft_instance_q15 * S,
|
|
q15_t * p1,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag);
|
|
|
|
void csi_cfft_q31(
|
|
const csi_cfft_instance_q31 * S,
|
|
q31_t * p1,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag);
|
|
|
|
void csi_cfft_fast_q31(
|
|
const csi_cfft_instance_q31 * S,
|
|
q31_t * p1,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag);
|
|
|
|
|
|
void csi_cfft_f32(
|
|
const csi_cfft_instance_f32 * S,
|
|
float32_t * p1,
|
|
uint8_t ifftFlag,
|
|
uint8_t bitReverseFlag);
|
|
|
|
|
|
csi_status csi_rfft_init_q15(
|
|
csi_rfft_instance_q15 * S,
|
|
uint32_t fftLenReal,
|
|
uint32_t ifftFlagR,
|
|
uint32_t bitReverseFlag);
|
|
|
|
void csi_rfft_q15(
|
|
const csi_rfft_instance_q15 * S,
|
|
q15_t * pSrc,
|
|
q15_t * pDst);
|
|
|
|
void csi_rfft_fast_q15(
|
|
const csi_rfft_fast_instance_q15 * S,
|
|
q15_t * pSrc,
|
|
q15_t * pDst);
|
|
|
|
|
|
csi_status csi_rfft_init_q31(
|
|
csi_rfft_instance_q31 * S,
|
|
uint32_t fftLenReal,
|
|
uint32_t ifftFlagR,
|
|
uint32_t bitReverseFlag);
|
|
|
|
void csi_rfft_q31(
|
|
const csi_rfft_instance_q31 * S,
|
|
q31_t * pSrc,
|
|
q31_t * pDst);
|
|
|
|
void csi_rfft_fast_q31(
|
|
const csi_rfft_fast_instance_q31 * S,
|
|
q31_t * pSrc,
|
|
q31_t * pDst);
|
|
|
|
|
|
csi_status csi_rfft_init_f32(
|
|
csi_rfft_instance_f32 * S,
|
|
csi_cfft_radix4_instance_f32 * S_CFFT,
|
|
uint32_t fftLenReal,
|
|
uint32_t ifftFlagR,
|
|
uint32_t bitReverseFlag);
|
|
|
|
void csi_rfft_f32(
|
|
const csi_rfft_instance_f32 * S,
|
|
float32_t * pSrc,
|
|
float32_t * pDst);
|
|
|
|
|
|
csi_status csi_rfft_fast_init_f32 (
|
|
csi_rfft_fast_instance_f32 * S,
|
|
uint16_t fftLen);
|
|
|
|
csi_status csi_rfft_32_fast_init_f32 ( csi_rfft_fast_instance_f32 * S );
|
|
|
|
csi_status csi_rfft_64_fast_init_f32 ( csi_rfft_fast_instance_f32 * S );
|
|
|
|
csi_status csi_rfft_128_fast_init_f32 ( csi_rfft_fast_instance_f32 * S );
|
|
|
|
csi_status csi_rfft_256_fast_init_f32 ( csi_rfft_fast_instance_f32 * S );
|
|
|
|
csi_status csi_rfft_512_fast_init_f32 ( csi_rfft_fast_instance_f32 * S );
|
|
|
|
csi_status csi_rfft_1024_fast_init_f32 ( csi_rfft_fast_instance_f32 * S );
|
|
|
|
csi_status csi_rfft_2048_fast_init_f32 ( csi_rfft_fast_instance_f32 * S );
|
|
|
|
csi_status csi_rfft_4096_fast_init_f32 ( csi_rfft_fast_instance_f32 * S );
|
|
|
|
|
|
void csi_rfft_fast_f32(
|
|
csi_rfft_fast_instance_f32 * S,
|
|
float32_t * p, float32_t * pOut,
|
|
uint8_t ifftFlag);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the floating-point DCT4/IDCT4.
|
|
* @param[in,out] S points to an instance of floating-point DCT4/IDCT4 structure.
|
|
* @param[in] S_RFFT points to an instance of floating-point RFFT/RIFFT structure.
|
|
* @param[in] S_CFFT points to an instance of floating-point CFFT/CIFFT structure.
|
|
* @param[in] N length of the DCT4.
|
|
* @param[in] Nby2 half of the length of the DCT4.
|
|
* @param[in] normalize normalizing factor.
|
|
* @return csi_status function returns CSI_MATH_SUCCESS if initialization is successful or CSI_MATH_ARGUMENT_ERROR if <code>fftLenReal</code> is not a supported transform length.
|
|
*/
|
|
csi_status csi_dct4_init_f32(
|
|
csi_dct4_instance_f32 * S,
|
|
csi_rfft_fast_instance_f32 * S_RFFT,
|
|
csi_cfft_radix4_instance_f32 * S_CFFT,
|
|
uint16_t N,
|
|
uint16_t Nby2,
|
|
float32_t normalize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the floating-point DCT4/IDCT4.
|
|
* @param[in] S points to an instance of the floating-point DCT4/IDCT4 structure.
|
|
* @param[in] pState points to state buffer.
|
|
* @param[in,out] pInlineBuffer points to the in-place input and output buffer.
|
|
*/
|
|
void csi_dct4_f32(
|
|
const csi_dct4_instance_f32 * S,
|
|
float32_t * pState,
|
|
float32_t * pInlineBuffer);
|
|
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q31 DCT4/IDCT4.
|
|
* @param[in,out] S points to an instance of Q31 DCT4/IDCT4 structure.
|
|
* @param[in] S_RFFT points to an instance of Q31 RFFT/RIFFT structure
|
|
* @param[in] S_CFFT points to an instance of Q31 CFFT/CIFFT structure
|
|
* @param[in] N length of the DCT4.
|
|
* @param[in] Nby2 half of the length of the DCT4.
|
|
* @param[in] normalize normalizing factor.
|
|
* @return csi_status function returns CSI_MATH_SUCCESS if initialization is successful or CSI_MATH_ARGUMENT_ERROR if <code>N</code> is not a supported transform length.
|
|
*/
|
|
csi_status csi_dct4_init_q31(
|
|
csi_dct4_instance_q31 * S,
|
|
csi_rfft_instance_q31 * S_RFFT,
|
|
csi_cfft_radix4_instance_q31 * S_CFFT,
|
|
uint16_t N,
|
|
uint16_t Nby2,
|
|
q31_t normalize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q31 DCT4/IDCT4.
|
|
* @param[in] S points to an instance of the Q31 DCT4 structure.
|
|
* @param[in] pState points to state buffer.
|
|
* @param[in,out] pInlineBuffer points to the in-place input and output buffer.
|
|
*/
|
|
void csi_dct4_q31(
|
|
const csi_dct4_instance_q31 * S,
|
|
q31_t * pState,
|
|
q31_t * pInlineBuffer);
|
|
|
|
void csi_dct4_fast_q31(
|
|
const csi_dct4_fast_instance_q31 * S,
|
|
q31_t * pState,
|
|
q31_t * pInlineBuffer);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q15 DCT4/IDCT4.
|
|
* @param[in,out] S points to an instance of Q15 DCT4/IDCT4 structure.
|
|
* @param[in] S_RFFT points to an instance of Q15 RFFT/RIFFT structure.
|
|
* @param[in] S_CFFT points to an instance of Q15 CFFT/CIFFT structure.
|
|
* @param[in] N length of the DCT4.
|
|
* @param[in] Nby2 half of the length of the DCT4.
|
|
* @param[in] normalize normalizing factor.
|
|
* @return csi_status function returns CSI_MATH_SUCCESS if initialization is successful or CSI_MATH_ARGUMENT_ERROR if <code>N</code> is not a supported transform length.
|
|
*/
|
|
csi_status csi_dct4_init_q15(
|
|
csi_dct4_instance_q15 * S,
|
|
csi_rfft_instance_q15 * S_RFFT,
|
|
csi_cfft_radix4_instance_q15 * S_CFFT,
|
|
uint16_t N,
|
|
uint16_t Nby2,
|
|
q15_t normalize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q15 DCT4/IDCT4.
|
|
* @param[in] S points to an instance of the Q15 DCT4 structure.
|
|
* @param[in] pState points to state buffer.
|
|
* @param[in,out] pInlineBuffer points to the in-place input and output buffer.
|
|
*/
|
|
void csi_dct4_q15(
|
|
const csi_dct4_instance_q15 * S,
|
|
q15_t * pState,
|
|
q15_t * pInlineBuffer);
|
|
|
|
void csi_dct4_fast_q15(
|
|
const csi_dct4_fast_instance_q15 * S,
|
|
q15_t * pState,
|
|
q15_t * pInlineBuffer);
|
|
|
|
|
|
/**
|
|
* @brief Floating-point vector addition.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_add_f32(
|
|
const float32_t * pSrcA,
|
|
const float32_t * pSrcB,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Q7 vector addition.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_add_q7(
|
|
const q7_t * pSrcA,
|
|
const q7_t * pSrcB,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Q15 vector addition.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_add_q15(
|
|
const q15_t * pSrcA,
|
|
const q15_t * pSrcB,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Q31 vector addition.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_add_q31(
|
|
const q31_t * pSrcA,
|
|
const q31_t * pSrcB,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Floating-point vector subtraction.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_sub_f32(
|
|
const float32_t * pSrcA,
|
|
const float32_t * pSrcB,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Q7 vector subtraction.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_sub_q7(
|
|
const q7_t * pSrcA,
|
|
const q7_t * pSrcB,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Q15 vector subtraction.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_sub_q15(
|
|
const q15_t * pSrcA,
|
|
const q15_t * pSrcB,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Q31 vector subtraction.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_sub_q31(
|
|
const q31_t * pSrcA,
|
|
const q31_t * pSrcB,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Multiplies a floating-point vector by a scalar.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[in] scale scale factor to be applied
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_scale_f32(
|
|
const float32_t * pSrc,
|
|
float32_t scale,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Multiplies a Q7 vector by a scalar.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[in] scaleFract fractional portion of the scale value
|
|
* @param[in] shift number of bits to shift the result by
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_scale_q7(
|
|
const q7_t * pSrc,
|
|
q7_t scaleFract,
|
|
int8_t shift,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Multiplies a Q15 vector by a scalar.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[in] scaleFract fractional portion of the scale value
|
|
* @param[in] shift number of bits to shift the result by
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_scale_q15(
|
|
const q15_t * pSrc,
|
|
q15_t scaleFract,
|
|
int8_t shift,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Multiplies a Q31 vector by a scalar.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[in] scaleFract fractional portion of the scale value
|
|
* @param[in] shift number of bits to shift the result by
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_scale_q31(
|
|
const q31_t * pSrc,
|
|
q31_t scaleFract,
|
|
int8_t shift,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Q7 vector absolute value.
|
|
* @param[in] pSrc points to the input buffer
|
|
* @param[out] pDst points to the output buffer
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_abs_q7(
|
|
const q7_t * pSrc,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Floating-point vector absolute value.
|
|
* @param[in] pSrc points to the input buffer
|
|
* @param[out] pDst points to the output buffer
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_abs_f32(
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Q15 vector absolute value.
|
|
* @param[in] pSrc points to the input buffer
|
|
* @param[out] pDst points to the output buffer
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_abs_q15(
|
|
const q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Q31 vector absolute value.
|
|
* @param[in] pSrc points to the input buffer
|
|
* @param[out] pDst points to the output buffer
|
|
* @param[in] blockSize number of samples in each vector
|
|
*/
|
|
void csi_abs_q31(
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
void csi_abs_max_q15(
|
|
q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
void csi_abs_max_q31(
|
|
q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Dot product of floating-point vectors.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
* @param[out] result output result returned here
|
|
*/
|
|
void csi_dot_prod_f32(
|
|
const float32_t * pSrcA,
|
|
const float32_t * pSrcB,
|
|
uint32_t blockSize,
|
|
float32_t * result);
|
|
|
|
|
|
/**
|
|
* @brief Dot product of Q7 vectors.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
* @param[out] result output result returned here
|
|
*/
|
|
void csi_dot_prod_q7(
|
|
const q7_t * pSrcA,
|
|
const q7_t * pSrcB,
|
|
uint32_t blockSize,
|
|
q31_t * result);
|
|
|
|
|
|
/**
|
|
* @brief Dot product of Q15 vectors.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
* @param[out] result output result returned here
|
|
*/
|
|
void csi_dot_prod_q15(
|
|
const q15_t * pSrcA,
|
|
const q15_t * pSrcB,
|
|
uint32_t blockSize,
|
|
q63_t * result);
|
|
|
|
|
|
/**
|
|
* @brief Dot product of Q31 vectors.
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
* @param[out] result output result returned here
|
|
*/
|
|
void csi_dot_prod_q31(
|
|
const q31_t * pSrcA,
|
|
const q31_t * pSrcB,
|
|
uint32_t blockSize,
|
|
q63_t * result);
|
|
|
|
|
|
/**
|
|
* @brief Shifts the elements of a Q7 vector a specified number of bits.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[in] shiftBits number of bits to shift. A positive value shifts left; a negative value shifts right.
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_shift_q7(
|
|
const q7_t * pSrc,
|
|
int8_t shiftBits,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Shifts the elements of a Q15 vector a specified number of bits.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[in] shiftBits number of bits to shift. A positive value shifts left; a negative value shifts right.
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_shift_q15(
|
|
const q15_t * pSrc,
|
|
int8_t shiftBits,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Shifts the elements of a Q31 vector a specified number of bits.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[in] shiftBits number of bits to shift. A positive value shifts left; a negative value shifts right.
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_shift_q31(
|
|
const q31_t * pSrc,
|
|
int8_t shiftBits,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Adds a constant offset to a floating-point vector.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[in] offset is the offset to be added
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_offset_f32(
|
|
const float32_t * pSrc,
|
|
float32_t offset,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Adds a constant offset to a Q7 vector.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[in] offset is the offset to be added
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_offset_q7(
|
|
const q7_t * pSrc,
|
|
q7_t offset,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Adds a constant offset to a Q15 vector.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[in] offset is the offset to be added
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_offset_q15(
|
|
const q15_t * pSrc,
|
|
q15_t offset,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Adds a constant offset to a Q31 vector.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[in] offset is the offset to be added
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_offset_q31(
|
|
const q31_t * pSrc,
|
|
q31_t offset,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Negates the elements of a floating-point vector.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_negate_f32(
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Negates the elements of a Q7 vector.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_negate_q7(
|
|
const q7_t * pSrc,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Negates the elements of a Q15 vector.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_negate_q15(
|
|
const q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Negates the elements of a Q31 vector.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] blockSize number of samples in the vector
|
|
*/
|
|
void csi_negate_q31(
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Copies the elements of a floating-point vector.
|
|
* @param[in] pSrc input pointer
|
|
* @param[out] pDst output pointer
|
|
* @param[in] blockSize number of samples to process
|
|
*/
|
|
void csi_copy_f32(
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Copies the elements of a Q7 vector.
|
|
* @param[in] pSrc input pointer
|
|
* @param[out] pDst output pointer
|
|
* @param[in] blockSize number of samples to process
|
|
*/
|
|
void csi_copy_q7(
|
|
const q7_t * pSrc,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Copies the elements of a Q15 vector.
|
|
* @param[in] pSrc input pointer
|
|
* @param[out] pDst output pointer
|
|
* @param[in] blockSize number of samples to process
|
|
*/
|
|
void csi_copy_q15(
|
|
const q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Copies the elements of a Q31 vector.
|
|
* @param[in] pSrc input pointer
|
|
* @param[out] pDst output pointer
|
|
* @param[in] blockSize number of samples to process
|
|
*/
|
|
void csi_copy_q31(
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Fills a constant value into a floating-point vector.
|
|
* @param[in] value input value to be filled
|
|
* @param[out] pDst output pointer
|
|
* @param[in] blockSize number of samples to process
|
|
*/
|
|
void csi_fill_f32(
|
|
float32_t value,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Fills a constant value into a Q7 vector.
|
|
* @param[in] value input value to be filled
|
|
* @param[out] pDst output pointer
|
|
* @param[in] blockSize number of samples to process
|
|
*/
|
|
void csi_fill_q7(
|
|
q7_t value,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Fills a constant value into a Q15 vector.
|
|
* @param[in] value input value to be filled
|
|
* @param[out] pDst output pointer
|
|
* @param[in] blockSize number of samples to process
|
|
*/
|
|
void csi_fill_q15(
|
|
q15_t value,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Fills a constant value into a Q31 vector.
|
|
* @param[in] value input value to be filled
|
|
* @param[out] pDst output pointer
|
|
* @param[in] blockSize number of samples to process
|
|
*/
|
|
void csi_fill_q31(
|
|
q31_t value,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Convolution of floating-point sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the location where the output result is written. Length srcALen+srcBLen-1.
|
|
*/
|
|
void csi_conv_f32(
|
|
const float32_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const float32_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
float32_t * pDst);
|
|
|
|
|
|
/**
|
|
* @brief Convolution of Q15 sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data Length srcALen+srcBLen-1.
|
|
* @param[in] pScratch1 points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
|
|
* @param[in] pScratch2 points to scratch buffer of size min(srcALen, srcBLen).
|
|
*/
|
|
void csi_conv_opt_q15(
|
|
const q15_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q15_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q15_t * pDst,
|
|
q15_t * pScratch1,
|
|
q15_t * pScratch2);
|
|
|
|
|
|
/**
|
|
* @brief Convolution of Q15 sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the location where the output result is written. Length srcALen+srcBLen-1.
|
|
*/
|
|
void csi_conv_q15(
|
|
const q15_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q15_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q15_t * pDst);
|
|
|
|
|
|
/**
|
|
* @brief Convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data Length srcALen+srcBLen-1.
|
|
*/
|
|
void csi_conv_fast_q15(
|
|
const q15_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q15_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q15_t * pDst);
|
|
|
|
|
|
/**
|
|
* @brief Convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data Length srcALen+srcBLen-1.
|
|
* @param[in] pScratch1 points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
|
|
* @param[in] pScratch2 points to scratch buffer of size min(srcALen, srcBLen).
|
|
*/
|
|
void csi_conv_fast_opt_q15(
|
|
const q15_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q15_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q15_t * pDst,
|
|
q15_t * pScratch1,
|
|
q15_t * pScratch2);
|
|
|
|
|
|
/**
|
|
* @brief Convolution of Q31 sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data Length srcALen+srcBLen-1.
|
|
*/
|
|
void csi_conv_q31(
|
|
const q31_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q31_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q31_t * pDst);
|
|
|
|
|
|
/**
|
|
* @brief Convolution of Q31 sequences (fast version) for Cortex-M3 and Cortex-M4
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data Length srcALen+srcBLen-1.
|
|
*/
|
|
void csi_conv_fast_q31(
|
|
const q31_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q31_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q31_t * pDst);
|
|
|
|
|
|
/**
|
|
* @brief Convolution of Q7 sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data Length srcALen+srcBLen-1.
|
|
* @param[in] pScratch1 points to scratch buffer(of type q15_t) of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
|
|
* @param[in] pScratch2 points to scratch buffer (of type q15_t) of size min(srcALen, srcBLen).
|
|
*/
|
|
void csi_conv_opt_q7(
|
|
const q7_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q7_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q7_t * pDst,
|
|
q15_t * pScratch1,
|
|
q15_t * pScratch2);
|
|
|
|
|
|
/**
|
|
* @brief Convolution of Q7 sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data Length srcALen+srcBLen-1.
|
|
*/
|
|
void csi_conv_q7(
|
|
const q7_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q7_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q7_t * pDst);
|
|
|
|
|
|
/**
|
|
* @brief Partial convolution of floating-point sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] firstIndex is the first output sample to start with.
|
|
* @param[in] numPoints is the number of output points to be computed.
|
|
* @return Returns either CSI_MATH_SUCCESS if the function completed correctly or CSI_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
|
|
*/
|
|
csi_status csi_conv_partial_f32(
|
|
const float32_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const float32_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
float32_t * pDst,
|
|
uint32_t firstIndex,
|
|
uint32_t numPoints);
|
|
|
|
|
|
/**
|
|
* @brief Partial convolution of Q15 sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] firstIndex is the first output sample to start with.
|
|
* @param[in] numPoints is the number of output points to be computed.
|
|
* @param[in] pScratch1 points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
|
|
* @param[in] pScratch2 points to scratch buffer of size min(srcALen, srcBLen).
|
|
* @return Returns either CSI_MATH_SUCCESS if the function completed correctly or CSI_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
|
|
*/
|
|
csi_status csi_conv_partial_opt_q15(
|
|
const q15_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q15_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q15_t * pDst,
|
|
uint32_t firstIndex,
|
|
uint32_t numPoints,
|
|
q15_t * pScratch1,
|
|
q15_t * pScratch2);
|
|
|
|
|
|
/**
|
|
* @brief Partial convolution of Q15 sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] firstIndex is the first output sample to start with.
|
|
* @param[in] numPoints is the number of output points to be computed.
|
|
* @return Returns either CSI_MATH_SUCCESS if the function completed correctly or CSI_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
|
|
*/
|
|
csi_status csi_conv_partial_q15(
|
|
const q15_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q15_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q15_t * pDst,
|
|
uint32_t firstIndex,
|
|
uint32_t numPoints);
|
|
|
|
|
|
/**
|
|
* @brief Partial convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] firstIndex is the first output sample to start with.
|
|
* @param[in] numPoints is the number of output points to be computed.
|
|
* @return Returns either CSI_MATH_SUCCESS if the function completed correctly or CSI_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
|
|
*/
|
|
csi_status csi_conv_partial_fast_q15(
|
|
const q15_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q15_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q15_t * pDst,
|
|
uint32_t firstIndex,
|
|
uint32_t numPoints);
|
|
|
|
|
|
/**
|
|
* @brief Partial convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] firstIndex is the first output sample to start with.
|
|
* @param[in] numPoints is the number of output points to be computed.
|
|
* @param[in] pScratch1 points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
|
|
* @param[in] pScratch2 points to scratch buffer of size min(srcALen, srcBLen).
|
|
* @return Returns either CSI_MATH_SUCCESS if the function completed correctly or CSI_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
|
|
*/
|
|
csi_status csi_conv_partial_fast_opt_q15(
|
|
const q15_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q15_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q15_t * pDst,
|
|
uint32_t firstIndex,
|
|
uint32_t numPoints,
|
|
q15_t * pScratch1,
|
|
q15_t * pScratch2);
|
|
|
|
|
|
/**
|
|
* @brief Partial convolution of Q31 sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] firstIndex is the first output sample to start with.
|
|
* @param[in] numPoints is the number of output points to be computed.
|
|
* @return Returns either CSI_MATH_SUCCESS if the function completed correctly or CSI_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
|
|
*/
|
|
csi_status csi_conv_partial_q31(
|
|
const q31_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q31_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q31_t * pDst,
|
|
uint32_t firstIndex,
|
|
uint32_t numPoints);
|
|
|
|
|
|
/**
|
|
* @brief Partial convolution of Q31 sequences (fast version) for Cortex-M3 and Cortex-M4
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] firstIndex is the first output sample to start with.
|
|
* @param[in] numPoints is the number of output points to be computed.
|
|
* @return Returns either CSI_MATH_SUCCESS if the function completed correctly or CSI_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
|
|
*/
|
|
csi_status csi_conv_partial_fast_q31(
|
|
const q31_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q31_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q31_t * pDst,
|
|
uint32_t firstIndex,
|
|
uint32_t numPoints);
|
|
|
|
|
|
/**
|
|
* @brief Partial convolution of Q7 sequences
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] firstIndex is the first output sample to start with.
|
|
* @param[in] numPoints is the number of output points to be computed.
|
|
* @param[in] pScratch1 points to scratch buffer(of type q15_t) of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
|
|
* @param[in] pScratch2 points to scratch buffer (of type q15_t) of size min(srcALen, srcBLen).
|
|
* @return Returns either CSI_MATH_SUCCESS if the function completed correctly or CSI_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
|
|
*/
|
|
csi_status csi_conv_partial_opt_q7(
|
|
const q7_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q7_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q7_t * pDst,
|
|
uint32_t firstIndex,
|
|
uint32_t numPoints,
|
|
q15_t * pScratch1,
|
|
q15_t * pScratch2);
|
|
|
|
|
|
/**
|
|
* @brief Partial convolution of Q7 sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] firstIndex is the first output sample to start with.
|
|
* @param[in] numPoints is the number of output points to be computed.
|
|
* @return Returns either CSI_MATH_SUCCESS if the function completed correctly or CSI_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2].
|
|
*/
|
|
csi_status csi_conv_partial_q7(
|
|
const q7_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q7_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q7_t * pDst,
|
|
uint32_t firstIndex,
|
|
uint32_t numPoints);
|
|
|
|
|
|
|
|
/**
|
|
@brief Processing function for floating-point FIR decimator.
|
|
@param[in] S points to an instance of the floating-point FIR decimator structure
|
|
@param[in] pSrc points to the block of input data
|
|
@param[out] pDst points to the block of output data
|
|
@param[in] blockSize number of samples to process
|
|
*/
|
|
void csi_fir_decimate_f32(
|
|
const csi_fir_decimate_instance_f32 * S,
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
@brief Initialization function for the floating-point FIR decimator.
|
|
@param[in,out] S points to an instance of the floating-point FIR decimator structure
|
|
@param[in] numTaps number of coefficients in the filter
|
|
@param[in] M decimation factor
|
|
@param[in] pCoeffs points to the filter coefficients
|
|
@param[in] pState points to the state buffer
|
|
@param[in] blockSize number of input samples to process per call
|
|
@return execution status
|
|
- \ref CSI_MATH_SUCCESS : Operation successful
|
|
- \ref CSI_MATH_LENGTH_ERROR : <code>blockSize</code> is not a multiple of <code>M</code>
|
|
*/
|
|
csi_status csi_fir_decimate_init_f32(
|
|
csi_fir_decimate_instance_f32 * S,
|
|
uint16_t numTaps,
|
|
uint8_t M,
|
|
const float32_t * pCoeffs,
|
|
float32_t * pState,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q15 FIR decimator.
|
|
* @param[in] S points to an instance of the Q15 FIR decimator structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
*/
|
|
void csi_fir_decimate_q15(
|
|
const csi_fir_decimate_instance_q15 * S,
|
|
const q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q15 FIR decimator (fast variant) for Cortex-M3 and Cortex-M4.
|
|
* @param[in] S points to an instance of the Q15 FIR decimator structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
*/
|
|
void csi_fir_decimate_fast_q15(
|
|
const csi_fir_decimate_instance_q15 * S,
|
|
const q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q15 FIR decimator.
|
|
* @param[in,out] S points to an instance of the Q15 FIR decimator structure.
|
|
* @param[in] numTaps number of coefficients in the filter.
|
|
* @param[in] M decimation factor.
|
|
* @param[in] pCoeffs points to the filter coefficients.
|
|
* @param[in] pState points to the state buffer.
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
* @return The function returns CSI_MATH_SUCCESS if initialization is successful or CSI_MATH_LENGTH_ERROR if
|
|
* <code>blockSize</code> is not a multiple of <code>M</code>.
|
|
*/
|
|
csi_status csi_fir_decimate_init_q15(
|
|
csi_fir_decimate_instance_q15 * S,
|
|
uint16_t numTaps,
|
|
uint8_t M,
|
|
const q15_t * pCoeffs,
|
|
q15_t * pState,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q31 FIR decimator.
|
|
* @param[in] S points to an instance of the Q31 FIR decimator structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
*/
|
|
void csi_fir_decimate_q31(
|
|
const csi_fir_decimate_instance_q31 * S,
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
/**
|
|
* @brief Processing function for the Q31 FIR decimator (fast variant) for Cortex-M3 and Cortex-M4.
|
|
* @param[in] S points to an instance of the Q31 FIR decimator structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
*/
|
|
void csi_fir_decimate_fast_q31(
|
|
const csi_fir_decimate_instance_q31 * S,
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q31 FIR decimator.
|
|
* @param[in,out] S points to an instance of the Q31 FIR decimator structure.
|
|
* @param[in] numTaps number of coefficients in the filter.
|
|
* @param[in] M decimation factor.
|
|
* @param[in] pCoeffs points to the filter coefficients.
|
|
* @param[in] pState points to the state buffer.
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
* @return The function returns CSI_MATH_SUCCESS if initialization is successful or CSI_MATH_LENGTH_ERROR if
|
|
* <code>blockSize</code> is not a multiple of <code>M</code>.
|
|
*/
|
|
csi_status csi_fir_decimate_init_q31(
|
|
csi_fir_decimate_instance_q31 * S,
|
|
uint16_t numTaps,
|
|
uint8_t M,
|
|
const q31_t * pCoeffs,
|
|
q31_t * pState,
|
|
uint32_t blockSize);
|
|
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q15 FIR interpolator.
|
|
* @param[in] S points to an instance of the Q15 FIR interpolator structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data.
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
*/
|
|
void csi_fir_interpolate_q15(
|
|
const csi_fir_interpolate_instance_q15 * S,
|
|
const q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q15 FIR interpolator.
|
|
* @param[in,out] S points to an instance of the Q15 FIR interpolator structure.
|
|
* @param[in] L upsample factor.
|
|
* @param[in] numTaps number of filter coefficients in the filter.
|
|
* @param[in] pCoeffs points to the filter coefficient buffer.
|
|
* @param[in] pState points to the state buffer.
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
* @return The function returns CSI_MATH_SUCCESS if initialization is successful or CSI_MATH_LENGTH_ERROR if
|
|
* the filter length <code>numTaps</code> is not a multiple of the interpolation factor <code>L</code>.
|
|
*/
|
|
csi_status csi_fir_interpolate_init_q15(
|
|
csi_fir_interpolate_instance_q15 * S,
|
|
uint8_t L,
|
|
uint16_t numTaps,
|
|
const q15_t * pCoeffs,
|
|
q15_t * pState,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q31 FIR interpolator.
|
|
* @param[in] S points to an instance of the Q15 FIR interpolator structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data.
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
*/
|
|
void csi_fir_interpolate_q31(
|
|
const csi_fir_interpolate_instance_q31 * S,
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q31 FIR interpolator.
|
|
* @param[in,out] S points to an instance of the Q31 FIR interpolator structure.
|
|
* @param[in] L upsample factor.
|
|
* @param[in] numTaps number of filter coefficients in the filter.
|
|
* @param[in] pCoeffs points to the filter coefficient buffer.
|
|
* @param[in] pState points to the state buffer.
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
* @return The function returns CSI_MATH_SUCCESS if initialization is successful or CSI_MATH_LENGTH_ERROR if
|
|
* the filter length <code>numTaps</code> is not a multiple of the interpolation factor <code>L</code>.
|
|
*/
|
|
csi_status csi_fir_interpolate_init_q31(
|
|
csi_fir_interpolate_instance_q31 * S,
|
|
uint8_t L,
|
|
uint16_t numTaps,
|
|
const q31_t * pCoeffs,
|
|
q31_t * pState,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the floating-point FIR interpolator.
|
|
* @param[in] S points to an instance of the floating-point FIR interpolator structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data.
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
*/
|
|
void csi_fir_interpolate_f32(
|
|
const csi_fir_interpolate_instance_f32 * S,
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the floating-point FIR interpolator.
|
|
* @param[in,out] S points to an instance of the floating-point FIR interpolator structure.
|
|
* @param[in] L upsample factor.
|
|
* @param[in] numTaps number of filter coefficients in the filter.
|
|
* @param[in] pCoeffs points to the filter coefficient buffer.
|
|
* @param[in] pState points to the state buffer.
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
* @return The function returns CSI_MATH_SUCCESS if initialization is successful or CSI_MATH_LENGTH_ERROR if
|
|
* the filter length <code>numTaps</code> is not a multiple of the interpolation factor <code>L</code>.
|
|
*/
|
|
csi_status csi_fir_interpolate_init_f32(
|
|
csi_fir_interpolate_instance_f32 * S,
|
|
uint8_t L,
|
|
uint16_t numTaps,
|
|
const float32_t * pCoeffs,
|
|
float32_t * pState,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @param[in] S points to an instance of the high precision Q31 Biquad cascade filter structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_biquad_cas_df1_32x64_q31(
|
|
const csi_biquad_cas_df1_32x64_ins_q31 * S,
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @param[in,out] S points to an instance of the high precision Q31 Biquad cascade filter structure.
|
|
* @param[in] numStages number of 2nd order stages in the filter.
|
|
* @param[in] pCoeffs points to the filter coefficients.
|
|
* @param[in] pState points to the state buffer.
|
|
* @param[in] postShift shift to be applied to the output. Varies according to the coefficients format
|
|
*/
|
|
void csi_biquad_cas_df1_32x64_init_q31(
|
|
csi_biquad_cas_df1_32x64_ins_q31 * S,
|
|
uint8_t numStages,
|
|
const q31_t * pCoeffs,
|
|
q63_t * pState,
|
|
uint8_t postShift);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the floating-point transposed direct form II Biquad cascade filter.
|
|
* @param[in] S points to an instance of the filter data structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_biquad_cascade_df2T_f32(
|
|
const csi_biquad_cascade_df2T_instance_f32 * S,
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the floating-point transposed direct form II Biquad cascade filter. 2 channels
|
|
* @param[in] S points to an instance of the filter data structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_biquad_cascade_stereo_df2T_f32(
|
|
const csi_biquad_cascade_stereo_df2T_instance_f32 * S,
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the floating-point transposed direct form II Biquad cascade filter.
|
|
* @param[in] S points to an instance of the filter data structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_biquad_cascade_df2T_f64(
|
|
const csi_biquad_cascade_df2T_instance_f64 * S,
|
|
float64_t * pSrc,
|
|
float64_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
#if defined(CSI_MATH_NEON)
|
|
void csi_biquad_cascade_df2T_compute_coefs_f32(
|
|
csi_biquad_cascade_df2T_instance_f32 * S,
|
|
uint8_t numStages,
|
|
float32_t * pCoeffs);
|
|
#endif
|
|
/**
|
|
* @brief Initialization function for the floating-point transposed direct form II Biquad cascade filter.
|
|
* @param[in,out] S points to an instance of the filter data structure.
|
|
* @param[in] numStages number of 2nd order stages in the filter.
|
|
* @param[in] pCoeffs points to the filter coefficients.
|
|
* @param[in] pState points to the state buffer.
|
|
*/
|
|
void csi_biquad_cascade_df2T_init_f32(
|
|
csi_biquad_cascade_df2T_instance_f32 * S,
|
|
uint8_t numStages,
|
|
const float32_t * pCoeffs,
|
|
float32_t * pState);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the floating-point transposed direct form II Biquad cascade filter.
|
|
* @param[in,out] S points to an instance of the filter data structure.
|
|
* @param[in] numStages number of 2nd order stages in the filter.
|
|
* @param[in] pCoeffs points to the filter coefficients.
|
|
* @param[in] pState points to the state buffer.
|
|
*/
|
|
void csi_biquad_cascade_stereo_df2T_init_f32(
|
|
csi_biquad_cascade_stereo_df2T_instance_f32 * S,
|
|
uint8_t numStages,
|
|
const float32_t * pCoeffs,
|
|
float32_t * pState);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the floating-point transposed direct form II Biquad cascade filter.
|
|
* @param[in,out] S points to an instance of the filter data structure.
|
|
* @param[in] numStages number of 2nd order stages in the filter.
|
|
* @param[in] pCoeffs points to the filter coefficients.
|
|
* @param[in] pState points to the state buffer.
|
|
*/
|
|
void csi_biquad_cascade_df2T_init_f64(
|
|
csi_biquad_cascade_df2T_instance_f64 * S,
|
|
uint8_t numStages,
|
|
float64_t * pCoeffs,
|
|
float64_t * pState);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q15 FIR lattice filter.
|
|
* @param[in] S points to an instance of the Q15 FIR lattice structure.
|
|
* @param[in] numStages number of filter stages.
|
|
* @param[in] pCoeffs points to the coefficient buffer. The array is of length numStages.
|
|
* @param[in] pState points to the state buffer. The array is of length numStages.
|
|
*/
|
|
void csi_fir_lattice_init_q15(
|
|
csi_fir_lattice_instance_q15 * S,
|
|
uint16_t numStages,
|
|
const q15_t * pCoeffs,
|
|
q15_t * pState);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q15 FIR lattice filter.
|
|
* @param[in] S points to an instance of the Q15 FIR lattice structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_fir_lattice_q15(
|
|
const csi_fir_lattice_instance_q15 * S,
|
|
const q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q31 FIR lattice filter.
|
|
* @param[in] S points to an instance of the Q31 FIR lattice structure.
|
|
* @param[in] numStages number of filter stages.
|
|
* @param[in] pCoeffs points to the coefficient buffer. The array is of length numStages.
|
|
* @param[in] pState points to the state buffer. The array is of length numStages.
|
|
*/
|
|
void csi_fir_lattice_init_q31(
|
|
csi_fir_lattice_instance_q31 * S,
|
|
uint16_t numStages,
|
|
const q31_t * pCoeffs,
|
|
q31_t * pState);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q31 FIR lattice filter.
|
|
* @param[in] S points to an instance of the Q31 FIR lattice structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_fir_lattice_q31(
|
|
const csi_fir_lattice_instance_q31 * S,
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the floating-point FIR lattice filter.
|
|
* @param[in] S points to an instance of the floating-point FIR lattice structure.
|
|
* @param[in] numStages number of filter stages.
|
|
* @param[in] pCoeffs points to the coefficient buffer. The array is of length numStages.
|
|
* @param[in] pState points to the state buffer. The array is of length numStages.
|
|
*/
|
|
void csi_fir_lattice_init_f32(
|
|
csi_fir_lattice_instance_f32 * S,
|
|
uint16_t numStages,
|
|
const float32_t * pCoeffs,
|
|
float32_t * pState);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the floating-point FIR lattice filter.
|
|
* @param[in] S points to an instance of the floating-point FIR lattice structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_fir_lattice_f32(
|
|
const csi_fir_lattice_instance_f32 * S,
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the floating-point IIR lattice filter.
|
|
* @param[in] S points to an instance of the floating-point IIR lattice structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_iir_lattice_f32(
|
|
const csi_iir_lattice_instance_f32 * S,
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the floating-point IIR lattice filter.
|
|
* @param[in] S points to an instance of the floating-point IIR lattice structure.
|
|
* @param[in] numStages number of stages in the filter.
|
|
* @param[in] pkCoeffs points to the reflection coefficient buffer. The array is of length numStages.
|
|
* @param[in] pvCoeffs points to the ladder coefficient buffer. The array is of length numStages+1.
|
|
* @param[in] pState points to the state buffer. The array is of length numStages+blockSize-1.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_iir_lattice_init_f32(
|
|
csi_iir_lattice_instance_f32 * S,
|
|
uint16_t numStages,
|
|
float32_t * pkCoeffs,
|
|
float32_t * pvCoeffs,
|
|
float32_t * pState,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q31 IIR lattice filter.
|
|
* @param[in] S points to an instance of the Q31 IIR lattice structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_iir_lattice_q31(
|
|
const csi_iir_lattice_instance_q31 * S,
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q31 IIR lattice filter.
|
|
* @param[in] S points to an instance of the Q31 IIR lattice structure.
|
|
* @param[in] numStages number of stages in the filter.
|
|
* @param[in] pkCoeffs points to the reflection coefficient buffer. The array is of length numStages.
|
|
* @param[in] pvCoeffs points to the ladder coefficient buffer. The array is of length numStages+1.
|
|
* @param[in] pState points to the state buffer. The array is of length numStages+blockSize.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_iir_lattice_init_q31(
|
|
csi_iir_lattice_instance_q31 * S,
|
|
uint16_t numStages,
|
|
q31_t * pkCoeffs,
|
|
q31_t * pvCoeffs,
|
|
q31_t * pState,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q15 IIR lattice filter.
|
|
* @param[in] S points to an instance of the Q15 IIR lattice structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_iir_lattice_q15(
|
|
const csi_iir_lattice_instance_q15 * S,
|
|
const q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q15 IIR lattice filter.
|
|
* @param[in] S points to an instance of the fixed-point Q15 IIR lattice structure.
|
|
* @param[in] numStages number of stages in the filter.
|
|
* @param[in] pkCoeffs points to reflection coefficient buffer. The array is of length numStages.
|
|
* @param[in] pvCoeffs points to ladder coefficient buffer. The array is of length numStages+1.
|
|
* @param[in] pState points to state buffer. The array is of length numStages+blockSize.
|
|
* @param[in] blockSize number of samples to process per call.
|
|
*/
|
|
void csi_iir_lattice_init_q15(
|
|
csi_iir_lattice_instance_q15 * S,
|
|
uint16_t numStages,
|
|
q15_t * pkCoeffs,
|
|
q15_t * pvCoeffs,
|
|
q15_t * pState,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for floating-point LMS filter.
|
|
* @param[in] S points to an instance of the floating-point LMS filter structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[in] pRef points to the block of reference data.
|
|
* @param[out] pOut points to the block of output data.
|
|
* @param[out] pErr points to the block of error data.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_lms_f32(
|
|
const csi_lms_instance_f32 * S,
|
|
const float32_t * pSrc,
|
|
float32_t * pRef,
|
|
float32_t * pOut,
|
|
float32_t * pErr,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for floating-point LMS filter.
|
|
* @param[in] S points to an instance of the floating-point LMS filter structure.
|
|
* @param[in] numTaps number of filter coefficients.
|
|
* @param[in] pCoeffs points to the coefficient buffer.
|
|
* @param[in] pState points to state buffer.
|
|
* @param[in] mu step size that controls filter coefficient updates.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_lms_init_f32(
|
|
csi_lms_instance_f32 * S,
|
|
uint16_t numTaps,
|
|
const float32_t * pCoeffs,
|
|
float32_t * pState,
|
|
float32_t mu,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q15 LMS filter.
|
|
* @param[in] S points to an instance of the Q15 LMS filter structure.
|
|
* @param[in] numTaps number of filter coefficients.
|
|
* @param[in] pCoeffs points to the coefficient buffer.
|
|
* @param[in] pState points to the state buffer.
|
|
* @param[in] mu step size that controls filter coefficient updates.
|
|
* @param[in] blockSize number of samples to process.
|
|
* @param[in] postShift bit shift applied to coefficients.
|
|
*/
|
|
void csi_lms_init_q15(
|
|
csi_lms_instance_q15 * S,
|
|
uint16_t numTaps,
|
|
q15_t * pCoeffs,
|
|
q15_t * pState,
|
|
q15_t mu,
|
|
uint32_t blockSize,
|
|
uint32_t postShift);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for Q15 LMS filter.
|
|
* @param[in] S points to an instance of the Q15 LMS filter structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[in] pRef points to the block of reference data.
|
|
* @param[out] pOut points to the block of output data.
|
|
* @param[out] pErr points to the block of error data.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_lms_q15(
|
|
const csi_lms_instance_q15 * S,
|
|
const q15_t * pSrc,
|
|
q15_t * pRef,
|
|
q15_t * pOut,
|
|
q15_t * pErr,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for Q31 LMS filter.
|
|
* @param[in] S points to an instance of the Q15 LMS filter structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[in] pRef points to the block of reference data.
|
|
* @param[out] pOut points to the block of output data.
|
|
* @param[out] pErr points to the block of error data.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_lms_q31(
|
|
const csi_lms_instance_q31 * S,
|
|
const q31_t * pSrc,
|
|
q31_t * pRef,
|
|
q31_t * pOut,
|
|
q31_t * pErr,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for Q31 LMS filter.
|
|
* @param[in] S points to an instance of the Q31 LMS filter structure.
|
|
* @param[in] numTaps number of filter coefficients.
|
|
* @param[in] pCoeffs points to coefficient buffer.
|
|
* @param[in] pState points to state buffer.
|
|
* @param[in] mu step size that controls filter coefficient updates.
|
|
* @param[in] blockSize number of samples to process.
|
|
* @param[in] postShift bit shift applied to coefficients.
|
|
*/
|
|
void csi_lms_init_q31(
|
|
csi_lms_instance_q31 * S,
|
|
uint16_t numTaps,
|
|
q31_t * pCoeffs,
|
|
q31_t * pState,
|
|
q31_t mu,
|
|
uint32_t blockSize,
|
|
uint32_t postShift);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for floating-point normalized LMS filter.
|
|
* @param[in] S points to an instance of the floating-point normalized LMS filter structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[in] pRef points to the block of reference data.
|
|
* @param[out] pOut points to the block of output data.
|
|
* @param[out] pErr points to the block of error data.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_lms_norm_f32(
|
|
csi_lms_norm_instance_f32 * S,
|
|
const float32_t * pSrc,
|
|
float32_t * pRef,
|
|
float32_t * pOut,
|
|
float32_t * pErr,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for floating-point normalized LMS filter.
|
|
* @param[in] S points to an instance of the floating-point LMS filter structure.
|
|
* @param[in] numTaps number of filter coefficients.
|
|
* @param[in] pCoeffs points to coefficient buffer.
|
|
* @param[in] pState points to state buffer.
|
|
* @param[in] mu step size that controls filter coefficient updates.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_lms_norm_init_f32(
|
|
csi_lms_norm_instance_f32 * S,
|
|
uint16_t numTaps,
|
|
const float32_t * pCoeffs,
|
|
float32_t * pState,
|
|
float32_t mu,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for Q31 normalized LMS filter.
|
|
* @param[in] S points to an instance of the Q31 normalized LMS filter structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[in] pRef points to the block of reference data.
|
|
* @param[out] pOut points to the block of output data.
|
|
* @param[out] pErr points to the block of error data.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_lms_norm_q31(
|
|
csi_lms_norm_instance_q31 * S,
|
|
const q31_t * pSrc,
|
|
q31_t * pRef,
|
|
q31_t * pOut,
|
|
q31_t * pErr,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for Q31 normalized LMS filter.
|
|
* @param[in] S points to an instance of the Q31 normalized LMS filter structure.
|
|
* @param[in] numTaps number of filter coefficients.
|
|
* @param[in] pCoeffs points to coefficient buffer.
|
|
* @param[in] pState points to state buffer.
|
|
* @param[in] mu step size that controls filter coefficient updates.
|
|
* @param[in] blockSize number of samples to process.
|
|
* @param[in] postShift bit shift applied to coefficients.
|
|
*/
|
|
void csi_lms_norm_init_q31(
|
|
csi_lms_norm_instance_q31 * S,
|
|
uint16_t numTaps,
|
|
q31_t * pCoeffs,
|
|
q31_t * pState,
|
|
q31_t mu,
|
|
uint32_t blockSize,
|
|
uint8_t postShift);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for Q15 normalized LMS filter.
|
|
* @param[in] S points to an instance of the Q15 normalized LMS filter structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[in] pRef points to the block of reference data.
|
|
* @param[out] pOut points to the block of output data.
|
|
* @param[out] pErr points to the block of error data.
|
|
* @param[in] blockSize number of samples to process.
|
|
*/
|
|
void csi_lms_norm_q15(
|
|
csi_lms_norm_instance_q15 * S,
|
|
const q15_t * pSrc,
|
|
q15_t * pRef,
|
|
q15_t * pOut,
|
|
q15_t * pErr,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for Q15 normalized LMS filter.
|
|
* @param[in] S points to an instance of the Q15 normalized LMS filter structure.
|
|
* @param[in] numTaps number of filter coefficients.
|
|
* @param[in] pCoeffs points to coefficient buffer.
|
|
* @param[in] pState points to state buffer.
|
|
* @param[in] mu step size that controls filter coefficient updates.
|
|
* @param[in] blockSize number of samples to process.
|
|
* @param[in] postShift bit shift applied to coefficients.
|
|
*/
|
|
void csi_lms_norm_init_q15(
|
|
csi_lms_norm_instance_q15 * S,
|
|
uint16_t numTaps,
|
|
q15_t * pCoeffs,
|
|
q15_t * pState,
|
|
q15_t mu,
|
|
uint32_t blockSize,
|
|
uint8_t postShift);
|
|
|
|
|
|
/**
|
|
* @brief Correlation of floating-point sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
|
|
*/
|
|
void csi_correlate_f32(
|
|
const float32_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const float32_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
float32_t * pDst);
|
|
|
|
|
|
/**
|
|
@brief Correlation of Q15 sequences
|
|
@param[in] pSrcA points to the first input sequence
|
|
@param[in] srcALen length of the first input sequence
|
|
@param[in] pSrcB points to the second input sequence
|
|
@param[in] srcBLen length of the second input sequence
|
|
@param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
|
|
@param[in] pScratch points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
|
|
*/
|
|
void csi_correlate_opt_q15(
|
|
const q15_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q15_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q15_t * pDst,
|
|
q15_t * pScratch);
|
|
|
|
|
|
/**
|
|
@brief Correlation of Q15 sequences.
|
|
@param[in] pSrcA points to the first input sequence
|
|
@param[in] srcALen length of the first input sequence
|
|
@param[in] pSrcB points to the second input sequence
|
|
@param[in] srcBLen length of the second input sequence
|
|
@param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
|
|
*/
|
|
void csi_correlate_q15(
|
|
const q15_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q15_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q15_t * pDst);
|
|
|
|
|
|
/**
|
|
@brief Correlation of Q15 sequences (fast version).
|
|
@param[in] pSrcA points to the first input sequence
|
|
@param[in] srcALen length of the first input sequence
|
|
@param[in] pSrcB points to the second input sequence
|
|
@param[in] srcBLen length of the second input sequence
|
|
@param[out] pDst points to the location where the output result is written. Length 2 * max(srcALen, srcBLen) - 1.
|
|
@return none
|
|
*/
|
|
void csi_correlate_fast_q15(
|
|
const q15_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q15_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q15_t * pDst);
|
|
|
|
|
|
/**
|
|
@brief Correlation of Q15 sequences (fast version).
|
|
@param[in] pSrcA points to the first input sequence.
|
|
@param[in] srcALen length of the first input sequence.
|
|
@param[in] pSrcB points to the second input sequence.
|
|
@param[in] srcBLen length of the second input sequence.
|
|
@param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
|
|
@param[in] pScratch points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
|
|
*/
|
|
void csi_correlate_fast_opt_q15(
|
|
const q15_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q15_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q15_t * pDst,
|
|
q15_t * pScratch);
|
|
|
|
|
|
/**
|
|
* @brief Correlation of Q31 sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
|
|
*/
|
|
void csi_correlate_q31(
|
|
const q31_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q31_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q31_t * pDst);
|
|
|
|
|
|
/**
|
|
@brief Correlation of Q31 sequences (fast version).
|
|
@param[in] pSrcA points to the first input sequence
|
|
@param[in] srcALen length of the first input sequence
|
|
@param[in] pSrcB points to the second input sequence
|
|
@param[in] srcBLen length of the second input sequence
|
|
@param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
|
|
*/
|
|
void csi_correlate_fast_q31(
|
|
const q31_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q31_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q31_t * pDst);
|
|
|
|
|
|
/**
|
|
* @brief Correlation of Q7 sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
|
|
* @param[in] pScratch1 points to scratch buffer(of type q15_t) of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
|
|
* @param[in] pScratch2 points to scratch buffer (of type q15_t) of size min(srcALen, srcBLen).
|
|
*/
|
|
void csi_correlate_opt_q7(
|
|
const q7_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q7_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q7_t * pDst,
|
|
q15_t * pScratch1,
|
|
q15_t * pScratch2);
|
|
|
|
|
|
/**
|
|
* @brief Correlation of Q7 sequences.
|
|
* @param[in] pSrcA points to the first input sequence.
|
|
* @param[in] srcALen length of the first input sequence.
|
|
* @param[in] pSrcB points to the second input sequence.
|
|
* @param[in] srcBLen length of the second input sequence.
|
|
* @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
|
|
*/
|
|
void csi_correlate_q7(
|
|
const q7_t * pSrcA,
|
|
uint32_t srcALen,
|
|
const q7_t * pSrcB,
|
|
uint32_t srcBLen,
|
|
q7_t * pDst);
|
|
|
|
/**
|
|
* @brief Processing function for the floating-point sparse FIR filter.
|
|
* @param[in] S points to an instance of the floating-point sparse FIR structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] pScratchIn points to a temporary buffer of size blockSize.
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
*/
|
|
void csi_fir_sparse_f32(
|
|
csi_fir_sparse_instance_f32 * S,
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
float32_t * pScratchIn,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the floating-point sparse FIR filter.
|
|
* @param[in,out] S points to an instance of the floating-point sparse FIR structure.
|
|
* @param[in] numTaps number of nonzero coefficients in the filter.
|
|
* @param[in] pCoeffs points to the array of filter coefficients.
|
|
* @param[in] pState points to the state buffer.
|
|
* @param[in] pTapDelay points to the array of offset times.
|
|
* @param[in] maxDelay maximum offset time supported.
|
|
* @param[in] blockSize number of samples that will be processed per block.
|
|
*/
|
|
void csi_fir_sparse_init_f32(
|
|
csi_fir_sparse_instance_f32 * S,
|
|
uint16_t numTaps,
|
|
const float32_t * pCoeffs,
|
|
float32_t * pState,
|
|
int32_t * pTapDelay,
|
|
uint16_t maxDelay,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q31 sparse FIR filter.
|
|
* @param[in] S points to an instance of the Q31 sparse FIR structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] pScratchIn points to a temporary buffer of size blockSize.
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
*/
|
|
void csi_fir_sparse_q31(
|
|
csi_fir_sparse_instance_q31 * S,
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
q31_t * pScratchIn,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q31 sparse FIR filter.
|
|
* @param[in,out] S points to an instance of the Q31 sparse FIR structure.
|
|
* @param[in] numTaps number of nonzero coefficients in the filter.
|
|
* @param[in] pCoeffs points to the array of filter coefficients.
|
|
* @param[in] pState points to the state buffer.
|
|
* @param[in] pTapDelay points to the array of offset times.
|
|
* @param[in] maxDelay maximum offset time supported.
|
|
* @param[in] blockSize number of samples that will be processed per block.
|
|
*/
|
|
void csi_fir_sparse_init_q31(
|
|
csi_fir_sparse_instance_q31 * S,
|
|
uint16_t numTaps,
|
|
const q31_t * pCoeffs,
|
|
q31_t * pState,
|
|
int32_t * pTapDelay,
|
|
uint16_t maxDelay,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q15 sparse FIR filter.
|
|
* @param[in] S points to an instance of the Q15 sparse FIR structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] pScratchIn points to a temporary buffer of size blockSize.
|
|
* @param[in] pScratchOut points to a temporary buffer of size blockSize.
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
*/
|
|
void csi_fir_sparse_q15(
|
|
csi_fir_sparse_instance_q15 * S,
|
|
const q15_t * pSrc,
|
|
q15_t * pDst,
|
|
q15_t * pScratchIn,
|
|
q31_t * pScratchOut,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q15 sparse FIR filter.
|
|
* @param[in,out] S points to an instance of the Q15 sparse FIR structure.
|
|
* @param[in] numTaps number of nonzero coefficients in the filter.
|
|
* @param[in] pCoeffs points to the array of filter coefficients.
|
|
* @param[in] pState points to the state buffer.
|
|
* @param[in] pTapDelay points to the array of offset times.
|
|
* @param[in] maxDelay maximum offset time supported.
|
|
* @param[in] blockSize number of samples that will be processed per block.
|
|
*/
|
|
void csi_fir_sparse_init_q15(
|
|
csi_fir_sparse_instance_q15 * S,
|
|
uint16_t numTaps,
|
|
const q15_t * pCoeffs,
|
|
q15_t * pState,
|
|
int32_t * pTapDelay,
|
|
uint16_t maxDelay,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Processing function for the Q7 sparse FIR filter.
|
|
* @param[in] S points to an instance of the Q7 sparse FIR structure.
|
|
* @param[in] pSrc points to the block of input data.
|
|
* @param[out] pDst points to the block of output data
|
|
* @param[in] pScratchIn points to a temporary buffer of size blockSize.
|
|
* @param[in] pScratchOut points to a temporary buffer of size blockSize.
|
|
* @param[in] blockSize number of input samples to process per call.
|
|
*/
|
|
void csi_fir_sparse_q7(
|
|
csi_fir_sparse_instance_q7 * S,
|
|
const q7_t * pSrc,
|
|
q7_t * pDst,
|
|
q7_t * pScratchIn,
|
|
q31_t * pScratchOut,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Initialization function for the Q7 sparse FIR filter.
|
|
* @param[in,out] S points to an instance of the Q7 sparse FIR structure.
|
|
* @param[in] numTaps number of nonzero coefficients in the filter.
|
|
* @param[in] pCoeffs points to the array of filter coefficients.
|
|
* @param[in] pState points to the state buffer.
|
|
* @param[in] pTapDelay points to the array of offset times.
|
|
* @param[in] maxDelay maximum offset time supported.
|
|
* @param[in] blockSize number of samples that will be processed per block.
|
|
*/
|
|
void csi_fir_sparse_init_q7(
|
|
csi_fir_sparse_instance_q7 * S,
|
|
uint16_t numTaps,
|
|
const q7_t * pCoeffs,
|
|
q7_t * pState,
|
|
int32_t * pTapDelay,
|
|
uint16_t maxDelay,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Floating-point sin_cos function.
|
|
* @param[in] theta input value in degrees
|
|
* @param[out] pSinVal points to the processed sine output.
|
|
* @param[out] pCosVal points to the processed cos output.
|
|
*/
|
|
void csi_sin_cos_f32(
|
|
float32_t theta,
|
|
float32_t * pSinVal,
|
|
float32_t * pCosVal);
|
|
|
|
|
|
/**
|
|
* @brief Q31 sin_cos function.
|
|
* @param[in] theta scaled input value in degrees
|
|
* @param[out] pSinVal points to the processed sine output.
|
|
* @param[out] pCosVal points to the processed cosine output.
|
|
*/
|
|
void csi_sin_cos_q31(
|
|
q31_t theta,
|
|
q31_t * pSinVal,
|
|
q31_t * pCosVal);
|
|
|
|
|
|
/**
|
|
* @brief Floating-point complex conjugate.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] numSamples number of complex samples in each vector
|
|
*/
|
|
void csi_cmplx_conj_f32(
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
/**
|
|
* @brief Q31 complex conjugate.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] numSamples number of complex samples in each vector
|
|
*/
|
|
void csi_cmplx_conj_q31(
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Q15 complex conjugate.
|
|
* @param[in] pSrc points to the input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] numSamples number of complex samples in each vector
|
|
*/
|
|
void csi_cmplx_conj_q15(
|
|
const q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Floating-point complex magnitude squared
|
|
* @param[in] pSrc points to the complex input vector
|
|
* @param[out] pDst points to the real output vector
|
|
* @param[in] numSamples number of complex samples in the input vector
|
|
*/
|
|
void csi_cmplx_mag_squared_f32(
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Q31 complex magnitude squared
|
|
* @param[in] pSrc points to the complex input vector
|
|
* @param[out] pDst points to the real output vector
|
|
* @param[in] numSamples number of complex samples in the input vector
|
|
*/
|
|
void csi_cmplx_mag_squared_q31(
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
void csi_cmplx_mag_squared_q31_basic(
|
|
q31_t * pSrc,
|
|
q63_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Q15 complex magnitude squared
|
|
* @param[in] pSrc points to the complex input vector
|
|
* @param[out] pDst points to the real output vector
|
|
* @param[in] numSamples number of complex samples in the input vector
|
|
*/
|
|
void csi_cmplx_mag_squared_q15(
|
|
const q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @ingroup groupController
|
|
*/
|
|
|
|
/**
|
|
* @defgroup PID PID Motor Control
|
|
*
|
|
* A Proportional Integral Derivative (PID) controller is a generic feedback control
|
|
* loop mechanism widely used in industrial control systems.
|
|
* A PID controller is the most commonly used type of feedback controller.
|
|
*
|
|
* This set of functions implements (PID) controllers
|
|
* for Q15, Q31, and floating-point data types. The functions operate on a single sample
|
|
* of data and each call to the function returns a single processed value.
|
|
* <code>S</code> points to an instance of the PID control data structure. <code>in</code>
|
|
* is the input sample value. The functions return the output value.
|
|
*
|
|
* \par Algorithm:
|
|
* <pre>
|
|
* y[n] = y[n-1] + A0 * x[n] + A1 * x[n-1] + A2 * x[n-2]
|
|
* A0 = Kp + Ki + Kd
|
|
* A1 = (-Kp ) - (2 * Kd )
|
|
* A2 = Kd
|
|
* </pre>
|
|
*
|
|
* \par
|
|
* where \c Kp is proportional constant, \c Ki is Integral constant and \c Kd is Derivative constant
|
|
*
|
|
* \par
|
|
* \image html PID.gif "Proportional Integral Derivative Controller"
|
|
*
|
|
* \par
|
|
* The PID controller calculates an "error" value as the difference between
|
|
* the measured output and the reference input.
|
|
* The controller attempts to minimize the error by adjusting the process control inputs.
|
|
* The proportional value determines the reaction to the current error,
|
|
* the integral value determines the reaction based on the sum of recent errors,
|
|
* and the derivative value determines the reaction based on the rate at which the error has been changing.
|
|
*
|
|
* \par Instance Structure
|
|
* The Gains A0, A1, A2 and state variables for a PID controller are stored together in an instance data structure.
|
|
* A separate instance structure must be defined for each PID Controller.
|
|
* There are separate instance structure declarations for each of the 3 supported data types.
|
|
*
|
|
* \par Reset Functions
|
|
* There is also an associated reset function for each data type which clears the state array.
|
|
*
|
|
* \par Initialization Functions
|
|
* There is also an associated initialization function for each data type.
|
|
* The initialization function performs the following operations:
|
|
* - Initializes the Gains A0, A1, A2 from Kp,Ki, Kd gains.
|
|
* - Zeros out the values in the state buffer.
|
|
*
|
|
* \par
|
|
* Instance structure cannot be placed into a const data section and it is recommended to use the initialization function.
|
|
*
|
|
* \par Fixed-Point Behavior
|
|
* Care must be taken when using the fixed-point versions of the PID Controller functions.
|
|
* In particular, the overflow and saturation behavior of the accumulator used in each function must be considered.
|
|
* Refer to the function specific documentation below for usage guidelines.
|
|
*/
|
|
|
|
/**
|
|
* @addtogroup PID
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Process function for the floating-point PID Control.
|
|
* @param[in,out] S is an instance of the floating-point PID Control structure
|
|
* @param[in] in input sample to process
|
|
* @return processed output sample.
|
|
*/
|
|
__STATIC_FORCEINLINE float32_t csi_pid_f32(
|
|
csi_pid_instance_f32 * S,
|
|
float32_t in)
|
|
{
|
|
float32_t out;
|
|
/* y[n] = y[n-1] + A0 * x[n] + A1 * x[n-1] + A2 * x[n-2] */
|
|
out = (S->A0 * in) +
|
|
(S->A1 * S->state[0]) + (S->A2 * S->state[1]) + (S->state[2]);
|
|
/* Update state */
|
|
S->state[1] = S->state[0];
|
|
S->state[0] = in;
|
|
S->state[2] = out;
|
|
/* return to application */
|
|
return (out);
|
|
}
|
|
|
|
/**
|
|
@brief Process function for the Q31 PID Control.
|
|
@param[in,out] S points to an instance of the Q31 PID Control structure
|
|
@param[in] in input sample to process
|
|
@return processed output sample.
|
|
|
|
\par Scaling and Overflow Behavior
|
|
The function is implemented using an internal 64-bit accumulator.
|
|
The accumulator has a 2.62 format and maintains full precision of the intermediate multiplication results but provides only a single guard bit.
|
|
Thus, if the accumulator result overflows it wraps around rather than clip.
|
|
In order to avoid overflows completely the input signal must be scaled down by 2 bits as there are four additions.
|
|
After all multiply-accumulates are performed, the 2.62 accumulator is truncated to 1.32 format and then saturated to 1.31 format.
|
|
*/
|
|
__STATIC_FORCEINLINE q31_t csi_pid_q31(
|
|
csi_pid_instance_q31 * S,
|
|
q31_t in)
|
|
{
|
|
q63_t acc;
|
|
q31_t out;
|
|
/* acc = A0 * x[n] */
|
|
acc = (q63_t) S->A0 * in;
|
|
/* acc += A1 * x[n-1] */
|
|
acc += (q63_t) S->A1 * S->state[0];
|
|
/* acc += A2 * x[n-2] */
|
|
acc += (q63_t) S->A2 * S->state[1];
|
|
/* convert output to 1.31 format to add y[n-1] */
|
|
out = (q31_t) (acc >> 31U);
|
|
/* out += y[n-1] */
|
|
out += S->state[2];
|
|
/* Update state */
|
|
S->state[1] = S->state[0];
|
|
S->state[0] = in;
|
|
S->state[2] = out;
|
|
/* return to application */
|
|
return (out);
|
|
}
|
|
|
|
|
|
/**
|
|
@brief Process function for the Q15 PID Control.
|
|
@param[in,out] S points to an instance of the Q15 PID Control structure
|
|
@param[in] in input sample to process
|
|
@return processed output sample.
|
|
|
|
\par Scaling and Overflow Behavior
|
|
The function is implemented using a 64-bit internal accumulator.
|
|
Both Gains and state variables are represented in 1.15 format and multiplications yield a 2.30 result.
|
|
The 2.30 intermediate results are accumulated in a 64-bit accumulator in 34.30 format.
|
|
There is no risk of internal overflow with this approach and the full precision of intermediate multiplications is preserved.
|
|
After all additions have been performed, the accumulator is truncated to 34.15 format by discarding low 15 bits.
|
|
Lastly, the accumulator is saturated to yield a result in 1.15 format.
|
|
*/
|
|
__STATIC_FORCEINLINE q15_t csi_pid_q15(
|
|
csi_pid_instance_q15 * S,
|
|
q15_t in)
|
|
{
|
|
q63_t acc;
|
|
q15_t out;
|
|
#if defined (CSI_MATH_DSP)
|
|
/* Implementation of PID controller */
|
|
/* acc = A0 * x[n] */
|
|
acc = (q31_t) __SMUAD((uint32_t)S->A0, (uint32_t)in);
|
|
/* acc += A1 * x[n-1] + A2 * x[n-2] */
|
|
acc = (q63_t)__SMLALD((uint32_t)S->A1, (uint32_t)read_q15x2 (S->state), (uint64_t)acc);
|
|
#else
|
|
/* acc = A0 * x[n] */
|
|
acc = ((q31_t) S->A0) * in;
|
|
/* acc += A1 * x[n-1] + A2 * x[n-2] */
|
|
acc += (q31_t) S->A1 * S->state[0];
|
|
acc += (q31_t) S->A2 * S->state[1];
|
|
#endif
|
|
/* acc += y[n-1] */
|
|
acc += (q31_t) S->state[2] << 15;
|
|
/* saturate the output */
|
|
out = (q15_t) (__SSAT((q31_t)(acc >> 15), 16));
|
|
/* Update state */
|
|
S->state[1] = S->state[0];
|
|
S->state[0] = in;
|
|
S->state[2] = out;
|
|
/* return to application */
|
|
return (out);
|
|
}
|
|
|
|
/**
|
|
* @} end of PID group
|
|
*/
|
|
|
|
|
|
/**
|
|
* @brief Floating-point matrix inverse.
|
|
* @param[in] src points to the instance of the input floating-point matrix structure.
|
|
* @param[out] dst points to the instance of the output floating-point matrix structure.
|
|
* @return The function returns CSI_MATH_SIZE_MISMATCH, if the dimensions do not match.
|
|
* If the input matrix is singular (does not have an inverse), then the algorithm terminates and returns error status CSI_MATH_SINGULAR.
|
|
*/
|
|
csi_status csi_mat_inverse_f32(
|
|
const csi_matrix_instance_f32 * src,
|
|
csi_matrix_instance_f32 * dst);
|
|
|
|
|
|
/**
|
|
* @brief Floating-point matrix inverse.
|
|
* @param[in] src points to the instance of the input floating-point matrix structure.
|
|
* @param[out] dst points to the instance of the output floating-point matrix structure.
|
|
* @return The function returns CSI_MATH_SIZE_MISMATCH, if the dimensions do not match.
|
|
* If the input matrix is singular (does not have an inverse), then the algorithm terminates and returns error status CSI_MATH_SINGULAR.
|
|
*/
|
|
csi_status csi_mat_inverse_f64(
|
|
const csi_matrix_instance_f64 * src,
|
|
csi_matrix_instance_f64 * dst);
|
|
|
|
|
|
|
|
/**
|
|
* @ingroup groupController
|
|
*/
|
|
|
|
/**
|
|
* @defgroup clarke Vector Clarke Transform
|
|
* Forward Clarke transform converts the instantaneous stator phases into a two-coordinate time invariant vector.
|
|
* Generally the Clarke transform uses three-phase currents <code>Ia, Ib and Ic</code> to calculate currents
|
|
* in the two-phase orthogonal stator axis <code>Ialpha</code> and <code>Ibeta</code>.
|
|
* When <code>Ialpha</code> is superposed with <code>Ia</code> as shown in the figure below
|
|
* \image html clarke.gif Stator current space vector and its components in (a,b).
|
|
* and <code>Ia + Ib + Ic = 0</code>, in this condition <code>Ialpha</code> and <code>Ibeta</code>
|
|
* can be calculated using only <code>Ia</code> and <code>Ib</code>.
|
|
*
|
|
* The function operates on a single sample of data and each call to the function returns the processed output.
|
|
* The library provides separate functions for Q31 and floating-point data types.
|
|
* \par Algorithm
|
|
* \image html clarkeFormula.gif
|
|
* where <code>Ia</code> and <code>Ib</code> are the instantaneous stator phases and
|
|
* <code>pIalpha</code> and <code>pIbeta</code> are the two coordinates of time invariant vector.
|
|
* \par Fixed-Point Behavior
|
|
* Care must be taken when using the Q31 version of the Clarke transform.
|
|
* In particular, the overflow and saturation behavior of the accumulator used must be considered.
|
|
* Refer to the function specific documentation below for usage guidelines.
|
|
*/
|
|
|
|
/**
|
|
* @addtogroup clarke
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
*
|
|
* @brief Floating-point Clarke transform
|
|
* @param[in] Ia input three-phase coordinate <code>a</code>
|
|
* @param[in] Ib input three-phase coordinate <code>b</code>
|
|
* @param[out] pIalpha points to output two-phase orthogonal vector axis alpha
|
|
* @param[out] pIbeta points to output two-phase orthogonal vector axis beta
|
|
* @return none
|
|
*/
|
|
__STATIC_FORCEINLINE void csi_clarke_f32(
|
|
float32_t Ia,
|
|
float32_t Ib,
|
|
float32_t * pIalpha,
|
|
float32_t * pIbeta)
|
|
{
|
|
/* Calculate pIalpha using the equation, pIalpha = Ia */
|
|
*pIalpha = Ia;
|
|
/* Calculate pIbeta using the equation, pIbeta = (1/sqrt(3)) * Ia + (2/sqrt(3)) * Ib */
|
|
*pIbeta = ((float32_t) 0.57735026919 * Ia + (float32_t) 1.15470053838 * Ib);
|
|
}
|
|
|
|
|
|
/**
|
|
@brief Clarke transform for Q31 version
|
|
@param[in] Ia input three-phase coordinate <code>a</code>
|
|
@param[in] Ib input three-phase coordinate <code>b</code>
|
|
@param[out] pIalpha points to output two-phase orthogonal vector axis alpha
|
|
@param[out] pIbeta points to output two-phase orthogonal vector axis beta
|
|
@return none
|
|
|
|
\par Scaling and Overflow Behavior
|
|
The function is implemented using an internal 32-bit accumulator.
|
|
The accumulator maintains 1.31 format by truncating lower 31 bits of the intermediate multiplication in 2.62 format.
|
|
There is saturation on the addition, hence there is no risk of overflow.
|
|
*/
|
|
__STATIC_FORCEINLINE void csi_clarke_q31(
|
|
q31_t Ia,
|
|
q31_t Ib,
|
|
q31_t * pIalpha,
|
|
q31_t * pIbeta)
|
|
{
|
|
q31_t product1, product2; /* Temporary variables used to store intermediate results */
|
|
/* Calculating pIalpha from Ia by equation pIalpha = Ia */
|
|
*pIalpha = Ia;
|
|
/* Intermediate product is calculated by (1/(sqrt(3)) * Ia) */
|
|
product1 = (q31_t) (((q63_t) Ia * 0x24F34E8B) >> 30);
|
|
/* Intermediate product is calculated by (2/sqrt(3) * Ib) */
|
|
product2 = (q31_t) (((q63_t) Ib * 0x49E69D16) >> 30);
|
|
/* pIbeta is calculated by adding the intermediate products */
|
|
*pIbeta = __QADD(product1, product2);
|
|
}
|
|
|
|
/**
|
|
* @} end of clarke group
|
|
*/
|
|
|
|
|
|
/**
|
|
* @ingroup groupController
|
|
*/
|
|
|
|
/**
|
|
* @defgroup inv_clarke Vector Inverse Clarke Transform
|
|
* Inverse Clarke transform converts the two-coordinate time invariant vector into instantaneous stator phases.
|
|
*
|
|
* The function operates on a single sample of data and each call to the function returns the processed output.
|
|
* The library provides separate functions for Q31 and floating-point data types.
|
|
* \par Algorithm
|
|
* \image html clarkeInvFormula.gif
|
|
* where <code>pIa</code> and <code>pIb</code> are the instantaneous stator phases and
|
|
* <code>Ialpha</code> and <code>Ibeta</code> are the two coordinates of time invariant vector.
|
|
* \par Fixed-Point Behavior
|
|
* Care must be taken when using the Q31 version of the Clarke transform.
|
|
* In particular, the overflow and saturation behavior of the accumulator used must be considered.
|
|
* Refer to the function specific documentation below for usage guidelines.
|
|
*/
|
|
|
|
/**
|
|
* @addtogroup inv_clarke
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Floating-point Inverse Clarke transform
|
|
* @param[in] Ialpha input two-phase orthogonal vector axis alpha
|
|
* @param[in] Ibeta input two-phase orthogonal vector axis beta
|
|
* @param[out] pIa points to output three-phase coordinate <code>a</code>
|
|
* @param[out] pIb points to output three-phase coordinate <code>b</code>
|
|
* @return none
|
|
*/
|
|
__STATIC_FORCEINLINE void csi_inv_clarke_f32(
|
|
float32_t Ialpha,
|
|
float32_t Ibeta,
|
|
float32_t * pIa,
|
|
float32_t * pIb)
|
|
{
|
|
/* Calculating pIa from Ialpha by equation pIa = Ialpha */
|
|
*pIa = Ialpha;
|
|
/* Calculating pIb from Ialpha and Ibeta by equation pIb = -(1/2) * Ialpha + (sqrt(3)/2) * Ibeta */
|
|
*pIb = -0.5f * Ialpha + 0.8660254039f * Ibeta;
|
|
}
|
|
|
|
|
|
/**
|
|
@brief Inverse Clarke transform for Q31 version
|
|
@param[in] Ialpha input two-phase orthogonal vector axis alpha
|
|
@param[in] Ibeta input two-phase orthogonal vector axis beta
|
|
@param[out] pIa points to output three-phase coordinate <code>a</code>
|
|
@param[out] pIb points to output three-phase coordinate <code>b</code>
|
|
@return none
|
|
|
|
\par Scaling and Overflow Behavior
|
|
The function is implemented using an internal 32-bit accumulator.
|
|
The accumulator maintains 1.31 format by truncating lower 31 bits of the intermediate multiplication in 2.62 format.
|
|
There is saturation on the subtraction, hence there is no risk of overflow.
|
|
*/
|
|
__STATIC_FORCEINLINE void csi_inv_clarke_q31(
|
|
q31_t Ialpha,
|
|
q31_t Ibeta,
|
|
q31_t * pIa,
|
|
q31_t * pIb)
|
|
{
|
|
q31_t product1, product2; /* Temporary variables used to store intermediate results */
|
|
/* Calculating pIa from Ialpha by equation pIa = Ialpha */
|
|
*pIa = Ialpha;
|
|
/* Intermediate product is calculated by (1/(2*sqrt(3)) * Ia) */
|
|
product1 = (q31_t) (((q63_t) (Ialpha) * (0x40000000)) >> 31);
|
|
/* Intermediate product is calculated by (1/sqrt(3) * pIb) */
|
|
product2 = (q31_t) (((q63_t) (Ibeta) * (0x6ED9EBA1)) >> 31);
|
|
/* pIb is calculated by subtracting the products */
|
|
*pIb = __QSUB(product2, product1);
|
|
}
|
|
|
|
/**
|
|
* @} end of inv_clarke group
|
|
*/
|
|
|
|
|
|
|
|
/**
|
|
* @ingroup groupController
|
|
*/
|
|
|
|
/**
|
|
* @defgroup park Vector Park Transform
|
|
*
|
|
* Forward Park transform converts the input two-coordinate vector to flux and torque components.
|
|
* The Park transform can be used to realize the transformation of the <code>Ialpha</code> and the <code>Ibeta</code> currents
|
|
* from the stationary to the moving reference frame and control the spatial relationship between
|
|
* the stator vector current and rotor flux vector.
|
|
* If we consider the d axis aligned with the rotor flux, the diagram below shows the
|
|
* current vector and the relationship from the two reference frames:
|
|
* \image html park.gif "Stator current space vector and its component in (a,b) and in the d,q rotating reference frame"
|
|
*
|
|
* The function operates on a single sample of data and each call to the function returns the processed output.
|
|
* The library provides separate functions for Q31 and floating-point data types.
|
|
* \par Algorithm
|
|
* \image html parkFormula.gif
|
|
* where <code>Ialpha</code> and <code>Ibeta</code> are the stator vector components,
|
|
* <code>pId</code> and <code>pIq</code> are rotor vector components and <code>cosVal</code> and <code>sinVal</code> are the
|
|
* cosine and sine values of theta (rotor flux position).
|
|
* \par Fixed-Point Behavior
|
|
* Care must be taken when using the Q31 version of the Park transform.
|
|
* In particular, the overflow and saturation behavior of the accumulator used must be considered.
|
|
* Refer to the function specific documentation below for usage guidelines.
|
|
*/
|
|
|
|
/**
|
|
* @addtogroup park
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Floating-point Park transform
|
|
* @param[in] Ialpha input two-phase vector coordinate alpha
|
|
* @param[in] Ibeta input two-phase vector coordinate beta
|
|
* @param[out] pId points to output rotor reference frame d
|
|
* @param[out] pIq points to output rotor reference frame q
|
|
* @param[in] sinVal sine value of rotation angle theta
|
|
* @param[in] cosVal cosine value of rotation angle theta
|
|
* @return none
|
|
*
|
|
* The function implements the forward Park transform.
|
|
*
|
|
*/
|
|
__STATIC_FORCEINLINE void csi_park_f32(
|
|
float32_t Ialpha,
|
|
float32_t Ibeta,
|
|
float32_t * pId,
|
|
float32_t * pIq,
|
|
float32_t sinVal,
|
|
float32_t cosVal)
|
|
{
|
|
/* Calculate pId using the equation, pId = Ialpha * cosVal + Ibeta * sinVal */
|
|
*pId = Ialpha * cosVal + Ibeta * sinVal;
|
|
/* Calculate pIq using the equation, pIq = - Ialpha * sinVal + Ibeta * cosVal */
|
|
*pIq = -Ialpha * sinVal + Ibeta * cosVal;
|
|
}
|
|
|
|
|
|
/**
|
|
@brief Park transform for Q31 version
|
|
@param[in] Ialpha input two-phase vector coordinate alpha
|
|
@param[in] Ibeta input two-phase vector coordinate beta
|
|
@param[out] pId points to output rotor reference frame d
|
|
@param[out] pIq points to output rotor reference frame q
|
|
@param[in] sinVal sine value of rotation angle theta
|
|
@param[in] cosVal cosine value of rotation angle theta
|
|
@return none
|
|
|
|
\par Scaling and Overflow Behavior
|
|
The function is implemented using an internal 32-bit accumulator.
|
|
The accumulator maintains 1.31 format by truncating lower 31 bits of the intermediate multiplication in 2.62 format.
|
|
There is saturation on the addition and subtraction, hence there is no risk of overflow.
|
|
*/
|
|
__STATIC_FORCEINLINE void csi_park_q31(
|
|
q31_t Ialpha,
|
|
q31_t Ibeta,
|
|
q31_t * pId,
|
|
q31_t * pIq,
|
|
q31_t sinVal,
|
|
q31_t cosVal)
|
|
{
|
|
#ifdef CSI_SIMD
|
|
asm volatile(
|
|
"rmul.s32.h t0, %0, %3\n\t"
|
|
"rmul.s32.h t1, %1, %2\n\t"
|
|
"add.s32.s t0, t0, t1\n\t"
|
|
"st.w t0, (%4, 0x0)\n\t"
|
|
"rmul.s32.h t0, %0, %2\n\t"
|
|
"rmul.s32.h t1, %1, %3\n\t"
|
|
"sub.s32.s t1, t1, t0\n\t"
|
|
"st.w t1, (%5, 0x0)\n\t"
|
|
::"r"(Ialpha),"r"(Ibeta),"r"(sinVal),"r"(cosVal),"r"(pId),"r"(pIq)
|
|
:"t0","t1", "memory");
|
|
#else
|
|
q31_t product1, product2; /* Temporary variables used to store intermediate results */
|
|
q31_t product3, product4; /* Temporary variables used to store intermediate results */
|
|
/* Intermediate product is calculated by (Ialpha * cosVal) */
|
|
product1 = (q31_t) (((q63_t) (Ialpha) * (cosVal)) >> 31);
|
|
/* Intermediate product is calculated by (Ibeta * sinVal) */
|
|
product2 = (q31_t) (((q63_t) (Ibeta) * (sinVal)) >> 31);
|
|
/* Intermediate product is calculated by (Ialpha * sinVal) */
|
|
product3 = (q31_t) (((q63_t) (Ialpha) * (sinVal)) >> 31);
|
|
/* Intermediate product is calculated by (Ibeta * cosVal) */
|
|
product4 = (q31_t) (((q63_t) (Ibeta) * (cosVal)) >> 31);
|
|
/* Calculate pId by adding the two intermediate products 1 and 2 */
|
|
*pId = __QADD(product1, product2);
|
|
/* Calculate pIq by subtracting the two intermediate products 3 from 4 */
|
|
*pIq = __QSUB(product4, product3);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* @} end of park group
|
|
*/
|
|
|
|
|
|
/**
|
|
* @ingroup groupController
|
|
*/
|
|
|
|
/**
|
|
* @defgroup inv_park Vector Inverse Park transform
|
|
* Inverse Park transform converts the input flux and torque components to two-coordinate vector.
|
|
*
|
|
* The function operates on a single sample of data and each call to the function returns the processed output.
|
|
* The library provides separate functions for Q31 and floating-point data types.
|
|
* \par Algorithm
|
|
* \image html parkInvFormula.gif
|
|
* where <code>pIalpha</code> and <code>pIbeta</code> are the stator vector components,
|
|
* <code>Id</code> and <code>Iq</code> are rotor vector components and <code>cosVal</code> and <code>sinVal</code> are the
|
|
* cosine and sine values of theta (rotor flux position).
|
|
* \par Fixed-Point Behavior
|
|
* Care must be taken when using the Q31 version of the Park transform.
|
|
* In particular, the overflow and saturation behavior of the accumulator used must be considered.
|
|
* Refer to the function specific documentation below for usage guidelines.
|
|
*/
|
|
|
|
/**
|
|
* @addtogroup inv_park
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Floating-point Inverse Park transform
|
|
* @param[in] Id input coordinate of rotor reference frame d
|
|
* @param[in] Iq input coordinate of rotor reference frame q
|
|
* @param[out] pIalpha points to output two-phase orthogonal vector axis alpha
|
|
* @param[out] pIbeta points to output two-phase orthogonal vector axis beta
|
|
* @param[in] sinVal sine value of rotation angle theta
|
|
* @param[in] cosVal cosine value of rotation angle theta
|
|
* @return none
|
|
*/
|
|
__STATIC_FORCEINLINE void csi_inv_park_f32(
|
|
float32_t Id,
|
|
float32_t Iq,
|
|
float32_t * pIalpha,
|
|
float32_t * pIbeta,
|
|
float32_t sinVal,
|
|
float32_t cosVal)
|
|
{
|
|
/* Calculate pIalpha using the equation, pIalpha = Id * cosVal - Iq * sinVal */
|
|
*pIalpha = Id * cosVal - Iq * sinVal;
|
|
/* Calculate pIbeta using the equation, pIbeta = Id * sinVal + Iq * cosVal */
|
|
*pIbeta = Id * sinVal + Iq * cosVal;
|
|
}
|
|
|
|
|
|
/**
|
|
@brief Inverse Park transform for Q31 version
|
|
@param[in] Id input coordinate of rotor reference frame d
|
|
@param[in] Iq input coordinate of rotor reference frame q
|
|
@param[out] pIalpha points to output two-phase orthogonal vector axis alpha
|
|
@param[out] pIbeta points to output two-phase orthogonal vector axis beta
|
|
@param[in] sinVal sine value of rotation angle theta
|
|
@param[in] cosVal cosine value of rotation angle theta
|
|
@return none
|
|
|
|
@par Scaling and Overflow Behavior
|
|
The function is implemented using an internal 32-bit accumulator.
|
|
The accumulator maintains 1.31 format by truncating lower 31 bits of the intermediate multiplication in 2.62 format.
|
|
There is saturation on the addition, hence there is no risk of overflow.
|
|
*/
|
|
__STATIC_FORCEINLINE void csi_inv_park_q31(
|
|
q31_t Id,
|
|
q31_t Iq,
|
|
q31_t * pIalpha,
|
|
q31_t * pIbeta,
|
|
q31_t sinVal,
|
|
q31_t cosVal)
|
|
{
|
|
#ifdef CSI_SIMD
|
|
asm volatile(
|
|
"rmul.s32.h t0, %0, %3\n\t"
|
|
"rmul.s32.h t1, %1, %2\n\t"
|
|
"sub.s32.s t0, t0, t1\n\t"
|
|
"st.w t0, (%4, 0x0)\n\t"
|
|
"rmul.s32.h t0, %0, %2\n\t"
|
|
"rmul.s32.h t1, %1, %3\n\t"
|
|
"add.s32.s t0, t0, t1\n\t"
|
|
"st.w t0, (%5, 0x0)\n\t"
|
|
::"r"(Id),"r"(Iq),"r"(sinVal),"r"(cosVal),"r"(pIalpha),"r"(pIbeta)
|
|
:"t0","t1", "memory");
|
|
#else
|
|
q31_t product1, product2; /* Temporary variables used to store intermediate results */
|
|
q31_t product3, product4; /* Temporary variables used to store intermediate results */
|
|
/* Intermediate product is calculated by (Id * cosVal) */
|
|
product1 = (q31_t) (((q63_t) (Id) * (cosVal)) >> 31);
|
|
/* Intermediate product is calculated by (Iq * sinVal) */
|
|
product2 = (q31_t) (((q63_t) (Iq) * (sinVal)) >> 31);
|
|
/* Intermediate product is calculated by (Id * sinVal) */
|
|
product3 = (q31_t) (((q63_t) (Id) * (sinVal)) >> 31);
|
|
/* Intermediate product is calculated by (Iq * cosVal) */
|
|
product4 = (q31_t) (((q63_t) (Iq) * (cosVal)) >> 31);
|
|
/* Calculate pIalpha by using the two intermediate products 1 and 2 */
|
|
*pIalpha = __QSUB(product1, product2);
|
|
/* Calculate pIbeta by using the two intermediate products 3 and 4 */
|
|
*pIbeta = __QADD(product4, product3);
|
|
#endif
|
|
}
|
|
|
|
/**
|
|
* @} end of Inverse park group
|
|
*/
|
|
|
|
|
|
/**
|
|
* @ingroup groupInterpolation
|
|
*/
|
|
|
|
/**
|
|
* @defgroup LinearInterpolate Linear Interpolation
|
|
*
|
|
* Linear interpolation is a method of curve fitting using linear polynomials.
|
|
* Linear interpolation works by effectively drawing a straight line between two neighboring samples and returning the appropriate point along that line
|
|
*
|
|
* \par
|
|
* \image html LinearInterp.gif "Linear interpolation"
|
|
*
|
|
* \par
|
|
* A Linear Interpolate function calculates an output value(y), for the input(x)
|
|
* using linear interpolation of the input values x0, x1( nearest input values) and the output values y0 and y1(nearest output values)
|
|
*
|
|
* \par Algorithm:
|
|
* <pre>
|
|
* y = y0 + (x - x0) * ((y1 - y0)/(x1-x0))
|
|
* where x0, x1 are nearest values of input x
|
|
* y0, y1 are nearest values to output y
|
|
* </pre>
|
|
*
|
|
* \par
|
|
* This set of functions implements Linear interpolation process
|
|
* for Q7, Q15, Q31, and floating-point data types. The functions operate on a single
|
|
* sample of data and each call to the function returns a single processed value.
|
|
* <code>S</code> points to an instance of the Linear Interpolate function data structure.
|
|
* <code>x</code> is the input sample value. The functions returns the output value.
|
|
*
|
|
* \par
|
|
* if x is outside of the table boundary, Linear interpolation returns first value of the table
|
|
* if x is below input range and returns last value of table if x is above range.
|
|
*/
|
|
|
|
/**
|
|
* @addtogroup LinearInterpolate
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Process function for the floating-point Linear Interpolation Function.
|
|
* @param[in,out] S is an instance of the floating-point Linear Interpolation structure
|
|
* @param[in] x input sample to process
|
|
* @return y processed output sample.
|
|
*
|
|
*/
|
|
__STATIC_FORCEINLINE float32_t csi_linear_interp_f32(
|
|
csi_linear_interp_instance_f32 * S,
|
|
float32_t x)
|
|
{
|
|
float32_t y;
|
|
float32_t x0, x1; /* Nearest input values */
|
|
float32_t y0, y1; /* Nearest output values */
|
|
float32_t xSpacing = S->xSpacing; /* spacing between input values */
|
|
int32_t i; /* Index variable */
|
|
float32_t *pYData = S->pYData; /* pointer to output table */
|
|
/* Calculation of index */
|
|
i = (int32_t) ((x - S->x1) / xSpacing);
|
|
|
|
if (i < 0) {
|
|
/* Iniatilize output for below specified range as least output value of table */
|
|
y = pYData[0];
|
|
|
|
} else if ((uint32_t)i >= (S->nValues - 1)) {
|
|
/* Iniatilize output for above specified range as last output value of table */
|
|
y = pYData[S->nValues - 1];
|
|
|
|
} else {
|
|
/* Calculation of nearest input values */
|
|
x0 = S->x1 + i * xSpacing;
|
|
x1 = S->x1 + (i + 1) * xSpacing;
|
|
/* Read of nearest output values */
|
|
y0 = pYData[i];
|
|
y1 = pYData[i + 1];
|
|
/* Calculation of output */
|
|
y = y0 + (x - x0) * ((y1 - y0) / (x1 - x0));
|
|
}
|
|
|
|
/* returns output value */
|
|
return (y);
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
* @brief Process function for the Q31 Linear Interpolation Function.
|
|
* @param[in] pYData pointer to Q31 Linear Interpolation table
|
|
* @param[in] x input sample to process
|
|
* @param[in] nValues number of table values
|
|
* @return y processed output sample.
|
|
*
|
|
* \par
|
|
* Input sample <code>x</code> is in 12.20 format which contains 12 bits for table index and 20 bits for fractional part.
|
|
* This function can support maximum of table size 2^12.
|
|
*
|
|
*/
|
|
__STATIC_FORCEINLINE q31_t csi_linear_interp_q31(
|
|
q31_t * pYData,
|
|
q31_t x,
|
|
uint32_t nValues)
|
|
{
|
|
q31_t y; /* output */
|
|
q31_t y0, y1; /* Nearest output values */
|
|
q31_t fract; /* fractional part */
|
|
int32_t index; /* Index to read nearest output values */
|
|
/* Input is in 12.20 format */
|
|
/* 12 bits for the table index */
|
|
/* Index value calculation */
|
|
index = ((x & (q31_t)0xFFF00000) >> 20);
|
|
|
|
if (index >= (int32_t)(nValues - 1)) {
|
|
return (pYData[nValues - 1]);
|
|
|
|
} else if (index < 0) {
|
|
return (pYData[0]);
|
|
|
|
} else {
|
|
/* 20 bits for the fractional part */
|
|
/* shift left by 11 to keep fract in 1.31 format */
|
|
fract = (x & 0x000FFFFF) << 11;
|
|
/* Read two nearest output values from the index in 1.31(q31) format */
|
|
y0 = pYData[index];
|
|
y1 = pYData[index + 1];
|
|
/* Calculation of y0 * (1-fract) and y is in 2.30 format */
|
|
y = ((q31_t) ((q63_t) y0 * (0x7FFFFFFF - fract) >> 32));
|
|
/* Calculation of y0 * (1-fract) + y1 *fract and y is in 2.30 format */
|
|
y += ((q31_t) (((q63_t) y1 * fract) >> 32));
|
|
/* Convert y to 1.31 format */
|
|
return (y << 1U);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
* @brief Process function for the Q15 Linear Interpolation Function.
|
|
* @param[in] pYData pointer to Q15 Linear Interpolation table
|
|
* @param[in] x input sample to process
|
|
* @param[in] nValues number of table values
|
|
* @return y processed output sample.
|
|
*
|
|
* \par
|
|
* Input sample <code>x</code> is in 12.20 format which contains 12 bits for table index and 20 bits for fractional part.
|
|
* This function can support maximum of table size 2^12.
|
|
*
|
|
*/
|
|
__STATIC_FORCEINLINE q15_t csi_linear_interp_q15(
|
|
q15_t * pYData,
|
|
q31_t x,
|
|
uint32_t nValues)
|
|
{
|
|
q63_t y; /* output */
|
|
q15_t y0, y1; /* Nearest output values */
|
|
q31_t fract; /* fractional part */
|
|
int32_t index; /* Index to read nearest output values */
|
|
/* Input is in 12.20 format */
|
|
/* 12 bits for the table index */
|
|
/* Index value calculation */
|
|
index = ((x & (int32_t)0xFFF00000) >> 20);
|
|
|
|
if (index >= (int32_t)(nValues - 1)) {
|
|
return (pYData[nValues - 1]);
|
|
|
|
} else if (index < 0) {
|
|
return (pYData[0]);
|
|
|
|
} else {
|
|
/* 20 bits for the fractional part */
|
|
/* fract is in 12.20 format */
|
|
fract = (x & 0x000FFFFF);
|
|
/* Read two nearest output values from the index */
|
|
y0 = pYData[index];
|
|
y1 = pYData[index + 1];
|
|
/* Calculation of y0 * (1-fract) and y is in 13.35 format */
|
|
y = ((q63_t) y0 * (0xFFFFF - fract));
|
|
/* Calculation of (y0 * (1-fract) + y1 * fract) and y is in 13.35 format */
|
|
y += ((q63_t) y1 * (fract));
|
|
/* convert y to 1.15 format */
|
|
return (q15_t) (y >> 20);
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
*
|
|
* @brief Process function for the Q7 Linear Interpolation Function.
|
|
* @param[in] pYData pointer to Q7 Linear Interpolation table
|
|
* @param[in] x input sample to process
|
|
* @param[in] nValues number of table values
|
|
* @return y processed output sample.
|
|
*
|
|
* \par
|
|
* Input sample <code>x</code> is in 12.20 format which contains 12 bits for table index and 20 bits for fractional part.
|
|
* This function can support maximum of table size 2^12.
|
|
*/
|
|
__STATIC_FORCEINLINE q7_t csi_linear_interp_q7(
|
|
q7_t * pYData,
|
|
q31_t x,
|
|
uint32_t nValues)
|
|
{
|
|
q31_t y; /* output */
|
|
q7_t y0, y1; /* Nearest output values */
|
|
q31_t fract; /* fractional part */
|
|
uint32_t index; /* Index to read nearest output values */
|
|
|
|
/* Input is in 12.20 format */
|
|
/* 12 bits for the table index */
|
|
/* Index value calculation */
|
|
if (x < 0) {
|
|
return (pYData[0]);
|
|
}
|
|
|
|
index = (x >> 20) & 0xfff;
|
|
|
|
if (index >= (nValues - 1)) {
|
|
return (pYData[nValues - 1]);
|
|
|
|
} else {
|
|
/* 20 bits for the fractional part */
|
|
/* fract is in 12.20 format */
|
|
fract = (x & 0x000FFFFF);
|
|
/* Read two nearest output values from the index and are in 1.7(q7) format */
|
|
y0 = pYData[index];
|
|
y1 = pYData[index + 1];
|
|
/* Calculation of y0 * (1-fract ) and y is in 13.27(q27) format */
|
|
y = ((y0 * (0xFFFFF - fract)));
|
|
/* Calculation of y1 * fract + y0 * (1-fract) and y is in 13.27(q27) format */
|
|
y += (y1 * fract);
|
|
/* convert y to 1.7(q7) format */
|
|
return (q7_t) (y >> 20);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* @} end of LinearInterpolate group
|
|
*/
|
|
|
|
/**
|
|
* @brief Fast approximation to the trigonometric sine function for floating-point data.
|
|
* @param[in] x input value in radians.
|
|
* @return sin(x).
|
|
*/
|
|
float32_t csi_sin_f32(
|
|
float32_t x);
|
|
|
|
|
|
/**
|
|
* @brief Fast approximation to the trigonometric sine function for Q31 data.
|
|
* @param[in] x Scaled input value in radians.
|
|
* @return sin(x).
|
|
*/
|
|
q31_t csi_sin_q31(
|
|
q31_t x);
|
|
|
|
|
|
/**
|
|
* @brief Fast approximation to the trigonometric sine function for Q15 data.
|
|
* @param[in] x Scaled input value in radians.
|
|
* @return sin(x).
|
|
*/
|
|
q15_t csi_sin_q15(
|
|
q15_t x);
|
|
|
|
|
|
/**
|
|
* @brief Fast approximation to the trigonometric cosine function for floating-point data.
|
|
* @param[in] x input value in radians.
|
|
* @return cos(x).
|
|
*/
|
|
float32_t csi_cos_f32(
|
|
float32_t x);
|
|
|
|
|
|
/**
|
|
* @brief Fast approximation to the trigonometric cosine function for Q31 data.
|
|
* @param[in] x Scaled input value in radians.
|
|
* @return cos(x).
|
|
*/
|
|
q31_t csi_cos_q31(
|
|
q31_t x);
|
|
|
|
|
|
/**
|
|
* @brief Fast approximation to the trigonometric cosine function for Q15 data.
|
|
* @param[in] x Scaled input value in radians.
|
|
* @return cos(x).
|
|
*/
|
|
q15_t csi_cos_q15(
|
|
q15_t x);
|
|
|
|
|
|
/**
|
|
@brief Floating-point vector of log values.
|
|
@param[in] pSrc points to the input vector
|
|
@param[out] pDst points to the output vector
|
|
@param[in] blockSize number of samples in each vector
|
|
@return none
|
|
*/
|
|
void csi_vlog_f32(
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
/**
|
|
@brief Floating-point vector of exp values.
|
|
@param[in] pSrc points to the input vector
|
|
@param[out] pDst points to the output vector
|
|
@param[in] blockSize number of samples in each vector
|
|
@return none
|
|
*/
|
|
void csi_vexp_f32(
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
/**
|
|
* @ingroup groupFastMath
|
|
*/
|
|
|
|
|
|
/**
|
|
* @defgroup SQRT Square Root
|
|
*
|
|
* Computes the square root of a number.
|
|
* There are separate functions for Q15, Q31, and floating-point data types.
|
|
* The square root function is computed using the Newton-Raphson algorithm.
|
|
* This is an iterative algorithm of the form:
|
|
* <pre>
|
|
* x1 = x0 - f(x0)/f'(x0)
|
|
* </pre>
|
|
* where <code>x1</code> is the current estimate,
|
|
* <code>x0</code> is the previous estimate, and
|
|
* <code>f'(x0)</code> is the derivative of <code>f()</code> evaluated at <code>x0</code>.
|
|
* For the square root function, the algorithm reduces to:
|
|
* <pre>
|
|
* x0 = in/2 [initial guess]
|
|
* x1 = 1/2 * ( x0 + in / x0) [each iteration]
|
|
* </pre>
|
|
*/
|
|
|
|
|
|
/**
|
|
* @addtogroup SQRT
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
@brief Q15 square root function.
|
|
@param[in] in input value. The range of the input value is [0 +1) or 0x0000 to 0x7FFF
|
|
@param[out] pOut points to square root of input value
|
|
@return execution status
|
|
- \ref CSI_MATH_SUCCESS : input value is positive
|
|
- \ref CSI_MATH_ARGUMENT_ERROR : input value is negative; *pOut is set to 0
|
|
*/
|
|
csi_status csi_sqrt_q15(
|
|
q15_t in,
|
|
q15_t * pOut);
|
|
|
|
/**
|
|
@brief Floating-point square root function.
|
|
@param[in] in input value
|
|
@param[out] pOut square root of input value
|
|
@return execution status
|
|
- \ref CSI_MATH_SUCCESS : input value is positive
|
|
- \ref CSI_MATH_ARGUMENT_ERROR : input value is negative; *pOut is set to 0
|
|
*/
|
|
#ifdef __riscv
|
|
__STATIC_FORCEINLINE csi_status csi_sqrt_f32(
|
|
float32_t in,
|
|
float32_t * pOut)
|
|
{
|
|
if (in >= 0.0f) {
|
|
#ifdef CSI_NEWTON_SQRTF
|
|
float32_t eps = 0.000000011;
|
|
float32_t val = in / 2;
|
|
float32_t last;
|
|
|
|
if (in <= eps) {
|
|
*pOut = 0.0f;
|
|
} else {
|
|
do {
|
|
last = val;
|
|
val = (val + in / val) / 2;
|
|
} while (fabsf(val - last) > eps);
|
|
*pOut = val;
|
|
}
|
|
#else
|
|
*pOut = sqrtf(in);
|
|
#endif
|
|
return (CSI_MATH_SUCCESS);
|
|
} else {
|
|
*pOut = 0.0f;
|
|
return (CSI_MATH_ARGUMENT_ERROR);
|
|
}
|
|
}
|
|
#else
|
|
csi_status csi_sqrt_f32(
|
|
float32_t in,
|
|
float32_t * pOut);
|
|
#endif
|
|
|
|
|
|
/**
|
|
@brief Q31 square root function.
|
|
@param[in] in input value. The range of the input value is [0 +1) or 0x00000000 to 0x7FFFFFFF
|
|
@param[out] pOut points to square root of input value
|
|
@return execution status
|
|
- \ref CSI_MATH_SUCCESS : input value is positive
|
|
- \ref CSI_MATH_ARGUMENT_ERROR : input value is negative; *pOut is set to 0
|
|
*/
|
|
csi_status csi_sqrt_q31(
|
|
q31_t in,
|
|
q31_t * pOut);
|
|
|
|
/**
|
|
* @brief Vector Floating-point square root function.
|
|
* @param[in] pIn input vector.
|
|
* @param[out] pOut vector of square roots of input elements.
|
|
* @param[in] len length of input vector.
|
|
* @return The function returns CSI_MATH_SUCCESS if input value is positive value or CSI_MATH_ARGUMENT_ERROR if
|
|
* <code>in</code> is negative value and returns zero output for negative values.
|
|
*/
|
|
#ifdef __csky__
|
|
|
|
void csi_vsqrt_f32(
|
|
float32_t * pIn,
|
|
float32_t * pOut,
|
|
uint16_t len);
|
|
|
|
void csi_vsqrt_q15(
|
|
q15_t * pIn,
|
|
q15_t * pOut,
|
|
uint16_t len);
|
|
|
|
void csi_vsqrt_q31(
|
|
q31_t * pIn,
|
|
q31_t * pOut,
|
|
uint16_t len);
|
|
|
|
void csi_vsqrt_q7(
|
|
q7_t * pIn,
|
|
q7_t * pOut,
|
|
uint16_t len);
|
|
|
|
|
|
#else
|
|
__STATIC_FORCEINLINE void csi_vsqrt_f32(
|
|
float32_t * pIn,
|
|
float32_t * pOut,
|
|
uint16_t len)
|
|
{
|
|
for (int i = 0; i < len; i++) {
|
|
csi_sqrt_f32(pIn[i], pOut + i);
|
|
}
|
|
}
|
|
|
|
__STATIC_FORCEINLINE void csi_vsqrt_q15(
|
|
q15_t * pIn,
|
|
q15_t * pOut,
|
|
uint16_t len
|
|
)
|
|
{
|
|
for (int i = 0; i < len; i++) {
|
|
csi_sqrt_q15(pIn[i], pOut + i);
|
|
}
|
|
}
|
|
__STATIC_FORCEINLINE void csi_vsqrt_q31(
|
|
q31_t * pIn,
|
|
q31_t * pOut,
|
|
uint16_t len
|
|
)
|
|
{
|
|
for (int i = 0; i < len; i++) {
|
|
csi_sqrt_q31(pIn[i], pOut + i);
|
|
}
|
|
}
|
|
#endif
|
|
/**
|
|
* @} end of SQRT group
|
|
*/
|
|
|
|
/**
|
|
* @brief floating-point Circular write function.
|
|
a*/
|
|
#ifndef __csky__
|
|
__STATIC_FORCEINLINE void csi_circularWrite_f32(
|
|
int32_t * circBuffer,
|
|
int32_t L,
|
|
uint16_t * writeOffset,
|
|
int32_t bufferInc,
|
|
const int32_t * src,
|
|
int32_t srcInc,
|
|
uint32_t blockSize)
|
|
{
|
|
uint32_t i = 0U;
|
|
int32_t wOffset;
|
|
/* Copy the value of Index pointer that points
|
|
* to the current location where the input samples to be copied */
|
|
wOffset = *writeOffset;
|
|
/* Loop over the blockSize */
|
|
i = blockSize;
|
|
|
|
while (i > 0U) {
|
|
/* copy the input sample to the circular buffer */
|
|
circBuffer[wOffset] = *src;
|
|
/* Update the input pointer */
|
|
src += srcInc;
|
|
/* Circularly update wOffset. Watch out for positive and negative value */
|
|
wOffset += bufferInc;
|
|
|
|
if (wOffset >= L)
|
|
wOffset -= L;
|
|
|
|
/* Decrement the loop counter */
|
|
i--;
|
|
}
|
|
|
|
/* Update the index pointer */
|
|
*writeOffset = (uint16_t)wOffset;
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
* @brief floating-point Circular Read function.
|
|
*/
|
|
__STATIC_FORCEINLINE void csi_circularRead_f32(
|
|
int32_t * circBuffer,
|
|
int32_t L,
|
|
int32_t * readOffset,
|
|
int32_t bufferInc,
|
|
int32_t * dst,
|
|
int32_t * dst_base,
|
|
int32_t dst_length,
|
|
int32_t dstInc,
|
|
uint32_t blockSize)
|
|
{
|
|
uint32_t i = 0U;
|
|
int32_t rOffset;
|
|
int32_t* dst_end;
|
|
/* Copy the value of Index pointer that points
|
|
* to the current location from where the input samples to be read */
|
|
rOffset = *readOffset;
|
|
dst_end = dst_base + dst_length;
|
|
/* Loop over the blockSize */
|
|
i = blockSize;
|
|
|
|
while (i > 0U) {
|
|
/* copy the sample from the circular buffer to the destination buffer */
|
|
*dst = circBuffer[rOffset];
|
|
/* Update the input pointer */
|
|
dst += dstInc;
|
|
|
|
if (dst == dst_end) {
|
|
dst = dst_base;
|
|
}
|
|
|
|
/* Circularly update rOffset. Watch out for positive and negative value */
|
|
rOffset += bufferInc;
|
|
|
|
if (rOffset >= L) {
|
|
rOffset -= L;
|
|
}
|
|
|
|
/* Decrement the loop counter */
|
|
i--;
|
|
}
|
|
|
|
/* Update the index pointer */
|
|
*readOffset = rOffset;
|
|
}
|
|
#endif
|
|
/**
|
|
* @brief Sum of the squares of the elements of a Q31 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_power_q31(
|
|
const q31_t * pSrc,
|
|
uint32_t blockSize,
|
|
q63_t * pResult);
|
|
|
|
void csi_power_int32(
|
|
int32_t * pSrc,
|
|
uint32_t blockSize,
|
|
q63_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Sum of the squares of the elements of a floating-point vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_power_f32(
|
|
const float32_t * pSrc,
|
|
uint32_t blockSize,
|
|
float32_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Sum of the squares of the elements of a Q15 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_power_q15(
|
|
const q15_t * pSrc,
|
|
uint32_t blockSize,
|
|
q63_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Sum of the squares of the elements of a Q7 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_power_q7(
|
|
const q7_t * pSrc,
|
|
uint32_t blockSize,
|
|
q31_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Mean value of a Q7 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_mean_q7(
|
|
const q7_t * pSrc,
|
|
uint32_t blockSize,
|
|
q7_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Mean value of a Q15 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_mean_q15(
|
|
const q15_t * pSrc,
|
|
uint32_t blockSize,
|
|
q15_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Mean value of a Q31 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_mean_q31(
|
|
const q31_t * pSrc,
|
|
uint32_t blockSize,
|
|
q31_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Mean value of a floating-point vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_mean_f32(
|
|
const float32_t * pSrc,
|
|
uint32_t blockSize,
|
|
float32_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Variance of the elements of a floating-point vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_var_f32(
|
|
const float32_t * pSrc,
|
|
uint32_t blockSize,
|
|
float32_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Variance of the elements of a Q31 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_var_q31(
|
|
const q31_t * pSrc,
|
|
uint32_t blockSize,
|
|
q31_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Variance of the elements of a Q15 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_var_q15(
|
|
const q15_t * pSrc,
|
|
uint32_t blockSize,
|
|
q15_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Root Mean Square of the elements of a floating-point vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_rms_f32(
|
|
const float32_t * pSrc,
|
|
uint32_t blockSize,
|
|
float32_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Root Mean Square of the elements of a Q31 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_rms_q31(
|
|
const q31_t * pSrc,
|
|
uint32_t blockSize,
|
|
q31_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Root Mean Square of the elements of a Q15 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_rms_q15(
|
|
const q15_t * pSrc,
|
|
uint32_t blockSize,
|
|
q15_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Standard deviation of the elements of a floating-point vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_std_f32(
|
|
const float32_t * pSrc,
|
|
uint32_t blockSize,
|
|
float32_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Standard deviation of the elements of a Q31 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_std_q31(
|
|
const q31_t * pSrc,
|
|
uint32_t blockSize,
|
|
q31_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Standard deviation of the elements of a Q15 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output value.
|
|
*/
|
|
void csi_std_q15(
|
|
const q15_t * pSrc,
|
|
uint32_t blockSize,
|
|
q15_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Floating-point complex magnitude
|
|
* @param[in] pSrc points to the complex input vector
|
|
* @param[out] pDst points to the real output vector
|
|
* @param[in] numSamples number of complex samples in the input vector
|
|
*/
|
|
void csi_cmplx_mag_f32(
|
|
const float32_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Q31 complex magnitude
|
|
* @param[in] pSrc points to the complex input vector
|
|
* @param[out] pDst points to the real output vector
|
|
* @param[in] numSamples number of complex samples in the input vector
|
|
*/
|
|
void csi_cmplx_mag_q31(
|
|
const q31_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Q15 complex magnitude
|
|
* @param[in] pSrc points to the complex input vector
|
|
* @param[out] pDst points to the real output vector
|
|
* @param[in] numSamples number of complex samples in the input vector
|
|
*/
|
|
void csi_cmplx_mag_q15(
|
|
const q15_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Q15 complex dot product
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[in] numSamples number of complex samples in each vector
|
|
* @param[out] realResult real part of the result returned here
|
|
* @param[out] imagResult imaginary part of the result returned here
|
|
*/
|
|
void csi_cmplx_dot_prod_q15(
|
|
const q15_t * pSrcA,
|
|
const q15_t * pSrcB,
|
|
uint32_t numSamples,
|
|
q31_t * realResult,
|
|
q31_t * imagResult);
|
|
|
|
|
|
/**
|
|
* @brief Q31 complex dot product
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[in] numSamples number of complex samples in each vector
|
|
* @param[out] realResult real part of the result returned here
|
|
* @param[out] imagResult imaginary part of the result returned here
|
|
*/
|
|
void csi_cmplx_dot_prod_q31(
|
|
const q31_t * pSrcA,
|
|
const q31_t * pSrcB,
|
|
uint32_t numSamples,
|
|
q63_t * realResult,
|
|
q63_t * imagResult);
|
|
|
|
void csi_dot_prod_u64xu8(
|
|
uint8_t * pSrcA,
|
|
uint64_t * pSrcB,
|
|
uint32_t blockSize,
|
|
uint64_t * result);
|
|
|
|
/**
|
|
* @brief Floating-point complex dot product
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[in] numSamples number of complex samples in each vector
|
|
* @param[out] realResult real part of the result returned here
|
|
* @param[out] imagResult imaginary part of the result returned here
|
|
*/
|
|
void csi_cmplx_dot_prod_f32(
|
|
const float32_t * pSrcA,
|
|
const float32_t * pSrcB,
|
|
uint32_t numSamples,
|
|
float32_t * realResult,
|
|
float32_t * imagResult);
|
|
|
|
|
|
/**
|
|
* @brief Q15 complex-by-real multiplication
|
|
* @param[in] pSrcCmplx points to the complex input vector
|
|
* @param[in] pSrcReal points to the real input vector
|
|
* @param[out] pCmplxDst points to the complex output vector
|
|
* @param[in] numSamples number of samples in each vector
|
|
*/
|
|
void csi_cmplx_mult_real_q15(
|
|
const q15_t * pSrcCmplx,
|
|
const q15_t * pSrcReal,
|
|
q15_t * pCmplxDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Q31 complex-by-real multiplication
|
|
* @param[in] pSrcCmplx points to the complex input vector
|
|
* @param[in] pSrcReal points to the real input vector
|
|
* @param[out] pCmplxDst points to the complex output vector
|
|
* @param[in] numSamples number of samples in each vector
|
|
*/
|
|
void csi_cmplx_mult_real_q31(
|
|
const q31_t * pSrcCmplx,
|
|
const q31_t * pSrcReal,
|
|
q31_t * pCmplxDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Floating-point complex-by-real multiplication
|
|
* @param[in] pSrcCmplx points to the complex input vector
|
|
* @param[in] pSrcReal points to the real input vector
|
|
* @param[out] pCmplxDst points to the complex output vector
|
|
* @param[in] numSamples number of samples in each vector
|
|
*/
|
|
void csi_cmplx_mult_real_f32(
|
|
const float32_t * pSrcCmplx,
|
|
const float32_t * pSrcReal,
|
|
float32_t * pCmplxDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Minimum value of a Q7 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] result is output pointer
|
|
* @param[in] index is the array index of the minimum value in the input buffer.
|
|
*/
|
|
void csi_min_q7(
|
|
const q7_t * pSrc,
|
|
uint16_t blockSize,
|
|
q7_t * result,
|
|
uint16_t * index);
|
|
|
|
|
|
/**
|
|
* @brief Minimum value of a Q15 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output pointer
|
|
* @param[in] pIndex is the array index of the minimum value in the input buffer.
|
|
*/
|
|
void csi_min_q15(
|
|
const q15_t * pSrc,
|
|
uint16_t blockSize,
|
|
q15_t * pResult,
|
|
uint16_t * pIndex);
|
|
|
|
|
|
/**
|
|
* @brief Minimum value of a Q31 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output pointer
|
|
* @param[out] pIndex is the array index of the minimum value in the input buffer.
|
|
*/
|
|
void csi_min_q31(
|
|
const q31_t * pSrc,
|
|
uint32_t blockSize,
|
|
q31_t * pResult,
|
|
uint32_t * pIndex);
|
|
|
|
|
|
/**
|
|
* @brief Minimum value of a floating-point vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
* @param[out] pResult is output pointer
|
|
* @param[out] pIndex is the array index of the minimum value in the input buffer.
|
|
*/
|
|
void csi_min_f32(
|
|
const float32_t * pSrc,
|
|
uint32_t blockSize,
|
|
float32_t * pResult,
|
|
uint32_t * pIndex);
|
|
|
|
|
|
/**
|
|
* @brief Maximum value of a Q7 vector.
|
|
* @param[in] pSrc points to the input buffer
|
|
* @param[in] blockSize length of the input vector
|
|
* @param[out] pResult maximum value returned here
|
|
* @param[out] pIndex index of maximum value returned here
|
|
*/
|
|
void csi_max_q7(
|
|
const q7_t * pSrc,
|
|
uint16_t blockSize,
|
|
q7_t * pResult,
|
|
uint16_t * pIndex);
|
|
|
|
|
|
/**
|
|
* @brief Maximum value of a Q15 vector.
|
|
* @param[in] pSrc points to the input buffer
|
|
* @param[in] blockSize length of the input vector
|
|
* @param[out] pResult maximum value returned here
|
|
* @param[out] pIndex index of maximum value returned here
|
|
*/
|
|
void csi_max_q15(
|
|
const q15_t * pSrc,
|
|
uint16_t blockSize,
|
|
q15_t * pResult,
|
|
uint16_t * pIndex);
|
|
|
|
|
|
/**
|
|
* @brief Maximum value of a Q31 vector.
|
|
* @param[in] pSrc points to the input buffer
|
|
* @param[in] blockSize length of the input vector
|
|
* @param[out] pResult maximum value returned here
|
|
* @param[out] pIndex index of maximum value returned here
|
|
*/
|
|
void csi_max_q31(
|
|
const q31_t * pSrc,
|
|
uint32_t blockSize,
|
|
q31_t * pResult,
|
|
uint32_t * pIndex);
|
|
|
|
|
|
/**
|
|
* @brief Maximum value of a floating-point vector.
|
|
* @param[in] pSrc points to the input buffer
|
|
* @param[in] blockSize length of the input vector
|
|
* @param[out] pResult maximum value returned here
|
|
* @param[out] pIndex index of maximum value returned here
|
|
*/
|
|
void csi_max_f32(
|
|
const float32_t * pSrc,
|
|
uint32_t blockSize,
|
|
float32_t * pResult,
|
|
uint32_t * pIndex);
|
|
|
|
/**
|
|
@brief Maximum value of a floating-point vector.
|
|
@param[in] pSrc points to the input vector
|
|
@param[in] blockSize number of samples in input vector
|
|
@param[out] pResult maximum value returned here
|
|
@return none
|
|
*/
|
|
void csi_max_no_idx_f32(
|
|
const float32_t *pSrc,
|
|
uint32_t blockSize,
|
|
float32_t *pResult);
|
|
|
|
/**
|
|
* @brief Q15 complex-by-complex multiplication
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] numSamples number of complex samples in each vector
|
|
*/
|
|
void csi_cmplx_mult_cmplx_q15(
|
|
const q15_t * pSrcA,
|
|
const q15_t * pSrcB,
|
|
q15_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Q31 complex-by-complex multiplication
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] numSamples number of complex samples in each vector
|
|
*/
|
|
void csi_cmplx_mult_cmplx_q31(
|
|
const q31_t * pSrcA,
|
|
const q31_t * pSrcB,
|
|
q31_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Floating-point complex-by-complex multiplication
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[out] pDst points to the output vector
|
|
* @param[in] numSamples number of complex samples in each vector
|
|
*/
|
|
void csi_cmplx_mult_cmplx_f32(
|
|
const float32_t * pSrcA,
|
|
const float32_t * pSrcB,
|
|
float32_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
void csi_cmplx_mult_cmplx_re_f32(
|
|
const float32_t * pSrcA,
|
|
const float32_t * pSrcB,
|
|
float32_t * pDst,
|
|
uint32_t numSamples);
|
|
|
|
|
|
/**
|
|
* @brief Converts the elements of the floating-point vector to Q31 vector.
|
|
* @param[in] pSrc points to the floating-point input vector
|
|
* @param[out] pDst points to the Q31 output vector
|
|
* @param[in] blockSize length of the input vector
|
|
*/
|
|
void csi_float_to_q31(
|
|
const float32_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Converts the elements of the floating-point vector to Q15 vector.
|
|
* @param[in] pSrc points to the floating-point input vector
|
|
* @param[out] pDst points to the Q15 output vector
|
|
* @param[in] blockSize length of the input vector
|
|
*/
|
|
void csi_float_to_q15(
|
|
const float32_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Converts the elements of the floating-point vector to Q7 vector.
|
|
* @param[in] pSrc points to the floating-point input vector
|
|
* @param[out] pDst points to the Q7 output vector
|
|
* @param[in] blockSize length of the input vector
|
|
*/
|
|
void csi_float_to_q7(
|
|
const float32_t * pSrc,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Converts the elements of the Q31 vector to floating-point vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[out] pDst is output pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
*/
|
|
void csi_q31_to_float(
|
|
const q31_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Converts the elements of the Q31 vector to Q15 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[out] pDst is output pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
*/
|
|
void csi_q31_to_q15(
|
|
const q31_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
void csi_q31_to_q7_rs(
|
|
q31_t * pSrc,
|
|
q7_t * pDst,
|
|
uint32_t shiftValue,
|
|
uint32_t blockSize);
|
|
|
|
void csi_q63_to_q31_rs(
|
|
q63_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t shiftValue,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Converts the elements of the Q31 vector to Q7 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[out] pDst is output pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
*/
|
|
void csi_q31_to_q7(
|
|
const q31_t * pSrc,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Converts the elements of the Q15 vector to floating-point vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[out] pDst is output pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
*/
|
|
void csi_q15_to_float(
|
|
const q15_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Converts the elements of the Q15 vector to Q31 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[out] pDst is output pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
*/
|
|
void csi_q15_to_q31(
|
|
const q15_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Converts the elements of the Q15 vector to Q7 vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[out] pDst is output pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
*/
|
|
void csi_q15_to_q7(
|
|
const q15_t * pSrc,
|
|
q7_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Converts the elements of the Q7 vector to floating-point vector.
|
|
* @param[in] pSrc is input pointer
|
|
* @param[out] pDst is output pointer
|
|
* @param[in] blockSize is the number of samples to process
|
|
*/
|
|
void csi_q7_to_float(
|
|
const q7_t * pSrc,
|
|
float32_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Converts the elements of the Q7 vector to Q31 vector.
|
|
* @param[in] pSrc input pointer
|
|
* @param[out] pDst output pointer
|
|
* @param[in] blockSize number of samples to process
|
|
*/
|
|
void csi_q7_to_q31(
|
|
const q7_t * pSrc,
|
|
q31_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Converts the elements of the Q7 vector to Q15 vector.
|
|
* @param[in] pSrc input pointer
|
|
* @param[out] pDst output pointer
|
|
* @param[in] blockSize number of samples to process
|
|
*/
|
|
void csi_q7_to_q15(
|
|
const q7_t * pSrc,
|
|
q15_t * pDst,
|
|
uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief SVM linear instance init function
|
|
* @param[in] S Parameters for SVM functions
|
|
* @param[in] nbOfSupportVectors Number of support vectors
|
|
* @param[in] vectorDimension Dimension of vector space
|
|
* @param[in] intercept Intercept
|
|
* @param[in] dualCoefficients Array of dual coefficients
|
|
* @param[in] supportVectors Array of support vectors
|
|
* @param[in] classes Array of 2 classes ID
|
|
* @return none.
|
|
*
|
|
*/
|
|
|
|
|
|
void csi_svm_linear_init_f32(csi_svm_linear_instance_f32 *S,
|
|
uint32_t nbOfSupportVectors,
|
|
uint32_t vectorDimension,
|
|
float32_t intercept,
|
|
const float32_t *dualCoefficients,
|
|
const float32_t *supportVectors,
|
|
const int32_t *classes);
|
|
|
|
/**
|
|
* @brief SVM linear prediction
|
|
* @param[in] S Pointer to an instance of the linear SVM structure.
|
|
* @param[in] in Pointer to input vector
|
|
* @param[out] pResult Decision value
|
|
* @return none.
|
|
*
|
|
*/
|
|
|
|
void csi_svm_linear_predict_f32(const csi_svm_linear_instance_f32 *S,
|
|
const float32_t * in,
|
|
int32_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief SVM polynomial instance init function
|
|
* @param[in] S points to an instance of the polynomial SVM structure.
|
|
* @param[in] nbOfSupportVectors Number of support vectors
|
|
* @param[in] vectorDimension Dimension of vector space
|
|
* @param[in] intercept Intercept
|
|
* @param[in] dualCoefficients Array of dual coefficients
|
|
* @param[in] supportVectors Array of support vectors
|
|
* @param[in] classes Array of 2 classes ID
|
|
* @param[in] degree Polynomial degree
|
|
* @param[in] coef0 coeff0 (scikit-learn terminology)
|
|
* @param[in] gamma gamma (scikit-learn terminology)
|
|
* @return none.
|
|
*
|
|
*/
|
|
|
|
|
|
void csi_svm_polynomial_init_f32(csi_svm_polynomial_instance_f32 *S,
|
|
uint32_t nbOfSupportVectors,
|
|
uint32_t vectorDimension,
|
|
float32_t intercept,
|
|
const float32_t *dualCoefficients,
|
|
const float32_t *supportVectors,
|
|
const int32_t *classes,
|
|
int32_t degree,
|
|
float32_t coef0,
|
|
float32_t gamma
|
|
);
|
|
|
|
/**
|
|
* @brief SVM polynomial prediction
|
|
* @param[in] S Pointer to an instance of the polynomial SVM structure.
|
|
* @param[in] in Pointer to input vector
|
|
* @param[out] pResult Decision value
|
|
* @return none.
|
|
*
|
|
*/
|
|
void csi_svm_polynomial_predict_f32(const csi_svm_polynomial_instance_f32 *S,
|
|
const float32_t * in,
|
|
int32_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief SVM radial basis function instance init function
|
|
* @param[in] S points to an instance of the polynomial SVM structure.
|
|
* @param[in] nbOfSupportVectors Number of support vectors
|
|
* @param[in] vectorDimension Dimension of vector space
|
|
* @param[in] intercept Intercept
|
|
* @param[in] dualCoefficients Array of dual coefficients
|
|
* @param[in] supportVectors Array of support vectors
|
|
* @param[in] classes Array of 2 classes ID
|
|
* @param[in] gamma gamma (scikit-learn terminology)
|
|
* @return none.
|
|
*
|
|
*/
|
|
|
|
void csi_svm_rbf_init_f32(csi_svm_rbf_instance_f32 *S,
|
|
uint32_t nbOfSupportVectors,
|
|
uint32_t vectorDimension,
|
|
float32_t intercept,
|
|
const float32_t *dualCoefficients,
|
|
const float32_t *supportVectors,
|
|
const int32_t *classes,
|
|
float32_t gamma
|
|
);
|
|
|
|
/**
|
|
* @brief SVM rbf prediction
|
|
* @param[in] S Pointer to an instance of the rbf SVM structure.
|
|
* @param[in] in Pointer to input vector
|
|
* @param[out] pResult decision value
|
|
* @return none.
|
|
*
|
|
*/
|
|
void csi_svm_rbf_predict_f32(const csi_svm_rbf_instance_f32 *S,
|
|
const float32_t * in,
|
|
int32_t * pResult);
|
|
|
|
/**
|
|
* @brief SVM sigmoid instance init function
|
|
* @param[in] S points to an instance of the rbf SVM structure.
|
|
* @param[in] nbOfSupportVectors Number of support vectors
|
|
* @param[in] vectorDimension Dimension of vector space
|
|
* @param[in] intercept Intercept
|
|
* @param[in] dualCoefficients Array of dual coefficients
|
|
* @param[in] supportVectors Array of support vectors
|
|
* @param[in] classes Array of 2 classes ID
|
|
* @param[in] coef0 coeff0 (scikit-learn terminology)
|
|
* @param[in] gamma gamma (scikit-learn terminology)
|
|
* @return none.
|
|
*
|
|
*/
|
|
|
|
void csi_svm_sigmoid_init_f32(csi_svm_sigmoid_instance_f32 *S,
|
|
uint32_t nbOfSupportVectors,
|
|
uint32_t vectorDimension,
|
|
float32_t intercept,
|
|
const float32_t *dualCoefficients,
|
|
const float32_t *supportVectors,
|
|
const int32_t *classes,
|
|
float32_t coef0,
|
|
float32_t gamma
|
|
);
|
|
|
|
/**
|
|
* @brief SVM sigmoid prediction
|
|
* @param[in] S Pointer to an instance of the rbf SVM structure.
|
|
* @param[in] in Pointer to input vector
|
|
* @param[out] pResult Decision value
|
|
* @return none.
|
|
*
|
|
*/
|
|
void csi_svm_sigmoid_predict_f32(const csi_svm_sigmoid_instance_f32 *S,
|
|
const float32_t * in,
|
|
int32_t * pResult);
|
|
|
|
|
|
/**
|
|
* @brief Naive Gaussian Bayesian Estimator
|
|
*
|
|
* @param[in] S points to a naive bayes instance structure
|
|
* @param[in] in points to the elements of the input vector.
|
|
* @param[in] pBuffer points to a buffer of length numberOfClasses
|
|
* @return The predicted class
|
|
*
|
|
*/
|
|
|
|
|
|
uint32_t csi_gaussian_naive_bayes_predict_f32(const csi_gaussian_naive_bayes_instance_f32 *S,
|
|
const float32_t * in,
|
|
float32_t *pBuffer);
|
|
|
|
/**
|
|
* @brief Computation of the LogSumExp
|
|
*
|
|
* In probabilistic computations, the dynamic of the probability values can be very
|
|
* wide because they come from gaussian functions.
|
|
* To avoid underflow and overflow issues, the values are represented by their log.
|
|
* In this representation, multiplying the original exp values is easy : their logs are added.
|
|
* But adding the original exp values is requiring some special handling and it is the
|
|
* goal of the LogSumExp function.
|
|
*
|
|
* If the values are x1...xn, the function is computing:
|
|
*
|
|
* ln(exp(x1) + ... + exp(xn)) and the computation is done in such a way that
|
|
* rounding issues are minimised.
|
|
*
|
|
* The max xm of the values is extracted and the function is computing:
|
|
* xm + ln(exp(x1 - xm) + ... + exp(xn - xm))
|
|
*
|
|
* @param[in] *in Pointer to an array of input values.
|
|
* @param[in] blockSize Number of samples in the input array.
|
|
* @return LogSumExp
|
|
*
|
|
*/
|
|
|
|
|
|
float32_t csi_logsumexp_f32(const float32_t *in, uint32_t blockSize);
|
|
|
|
/**
|
|
* @brief Dot product with log arithmetic
|
|
*
|
|
* Vectors are containing the log of the samples
|
|
*
|
|
* @param[in] pSrcA points to the first input vector
|
|
* @param[in] pSrcB points to the second input vector
|
|
* @param[in] blockSize number of samples in each vector
|
|
* @param[in] pTmpBuffer temporary buffer of length blockSize
|
|
* @return The log of the dot product .
|
|
*
|
|
*/
|
|
|
|
|
|
float32_t csi_logsumexp_dot_prod_f32(const float32_t * pSrcA,
|
|
const float32_t * pSrcB,
|
|
uint32_t blockSize,
|
|
float32_t *pTmpBuffer);
|
|
|
|
/**
|
|
* @brief Entropy
|
|
*
|
|
* @param[in] pSrcA Array of input values.
|
|
* @param[in] blockSize Number of samples in the input array.
|
|
* @return Entropy -Sum(p ln p)
|
|
*
|
|
*/
|
|
|
|
|
|
float32_t csi_entropy_f32(const float32_t * pSrcA,uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Kullback-Leibler
|
|
*
|
|
* @param[in] pSrcA Pointer to an array of input values for probability distribution A.
|
|
* @param[in] pSrcB Pointer to an array of input values for probability distribution B.
|
|
* @param[in] blockSize Number of samples in the input array.
|
|
* @return Kullback-Leibler Divergence D(A || B)
|
|
*
|
|
*/
|
|
float32_t csi_kullback_leibler_f32(const float32_t * pSrcA
|
|
,const float32_t * pSrcB
|
|
,uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Weighted sum
|
|
*
|
|
*
|
|
* @param[in] *in Array of input values.
|
|
* @param[in] *weigths Weights
|
|
* @param[in] blockSize Number of samples in the input array.
|
|
* @return Weighted sum
|
|
*
|
|
*/
|
|
float32_t csi_weighted_sum_f32(const float32_t *in
|
|
, const float32_t *weigths
|
|
, uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Barycenter
|
|
*
|
|
*
|
|
* @param[in] in List of vectors
|
|
* @param[in] weights Weights of the vectors
|
|
* @param[out] out Barycenter
|
|
* @param[in] nbVectors Number of vectors
|
|
* @param[in] vecDim Dimension of space (vector dimension)
|
|
* @return None
|
|
*
|
|
*/
|
|
void csi_barycenter_f32(const float32_t *in
|
|
, const float32_t *weights
|
|
, float32_t *out
|
|
, uint32_t nbVectors
|
|
, uint32_t vecDim);
|
|
|
|
/**
|
|
* @brief Euclidean distance between two vectors
|
|
* @param[in] pA First vector
|
|
* @param[in] pB Second vector
|
|
* @param[in] blockSize vector length
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
float32_t csi_euclidean_distance_f32(const float32_t *pA,const float32_t *pB, uint32_t blockSize);
|
|
|
|
/**
|
|
* @brief Bray-Curtis distance between two vectors
|
|
* @param[in] pA First vector
|
|
* @param[in] pB Second vector
|
|
* @param[in] blockSize vector length
|
|
* @return distance
|
|
*
|
|
*/
|
|
float32_t csi_braycurtis_distance_f32(const float32_t *pA,const float32_t *pB, uint32_t blockSize);
|
|
|
|
/**
|
|
* @brief Canberra distance between two vectors
|
|
*
|
|
* This function may divide by zero when samples pA[i] and pB[i] are both zero.
|
|
* The result of the computation will be correct. So the division per zero may be
|
|
* ignored.
|
|
*
|
|
* @param[in] pA First vector
|
|
* @param[in] pB Second vector
|
|
* @param[in] blockSize vector length
|
|
* @return distance
|
|
*
|
|
*/
|
|
float32_t csi_canberra_distance_f32(const float32_t *pA,const float32_t *pB, uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Chebyshev distance between two vectors
|
|
* @param[in] pA First vector
|
|
* @param[in] pB Second vector
|
|
* @param[in] blockSize vector length
|
|
* @return distance
|
|
*
|
|
*/
|
|
float32_t csi_chebyshev_distance_f32(const float32_t *pA,const float32_t *pB, uint32_t blockSize);
|
|
|
|
|
|
/**
|
|
* @brief Cityblock (Manhattan) distance between two vectors
|
|
* @param[in] pA First vector
|
|
* @param[in] pB Second vector
|
|
* @param[in] blockSize vector length
|
|
* @return distance
|
|
*
|
|
*/
|
|
float32_t csi_cityblock_distance_f32(const float32_t *pA,const float32_t *pB, uint32_t blockSize);
|
|
|
|
/**
|
|
* @brief Correlation distance between two vectors
|
|
*
|
|
* The input vectors are modified in place !
|
|
*
|
|
* @param[in] pA First vector
|
|
* @param[in] pB Second vector
|
|
* @param[in] blockSize vector length
|
|
* @return distance
|
|
*
|
|
*/
|
|
float32_t csi_correlation_distance_f32(float32_t *pA,float32_t *pB, uint32_t blockSize);
|
|
|
|
/**
|
|
* @brief Cosine distance between two vectors
|
|
*
|
|
* @param[in] pA First vector
|
|
* @param[in] pB Second vector
|
|
* @param[in] blockSize vector length
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
float32_t csi_cosine_distance_f32(const float32_t *pA,const float32_t *pB, uint32_t blockSize);
|
|
|
|
/**
|
|
* @brief Jensen-Shannon distance between two vectors
|
|
*
|
|
* This function is assuming that elements of second vector are > 0
|
|
* and 0 only when the corresponding element of first vector is 0.
|
|
* Otherwise the result of the computation does not make sense
|
|
* and for speed reasons, the cases returning NaN or Infinity are not
|
|
* managed.
|
|
*
|
|
* When the function is computing x log (x / y) with x 0 and y 0,
|
|
* it will compute the right value (0) but a division per zero will occur
|
|
* and shoudl be ignored in client code.
|
|
*
|
|
* @param[in] pA First vector
|
|
* @param[in] pB Second vector
|
|
* @param[in] blockSize vector length
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
float32_t csi_jensenshannon_distance_f32(const float32_t *pA,const float32_t *pB,uint32_t blockSize);
|
|
|
|
/**
|
|
* @brief Minkowski distance between two vectors
|
|
*
|
|
* @param[in] pA First vector
|
|
* @param[in] pB Second vector
|
|
* @param[in] n Norm order (>= 2)
|
|
* @param[in] blockSize vector length
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
|
|
|
|
float32_t csi_minkowski_distance_f32(const float32_t *pA,const float32_t *pB, int32_t order, uint32_t blockSize);
|
|
|
|
/**
|
|
* @brief Dice distance between two vectors
|
|
*
|
|
* @param[in] pA First vector of packed booleans
|
|
* @param[in] pB Second vector of packed booleans
|
|
* @param[in] order Distance order
|
|
* @param[in] blockSize Number of samples
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
|
|
float32_t csi_dice_distance(const uint32_t *pA, const uint32_t *pB, uint32_t numberOfBools);
|
|
|
|
/**
|
|
* @brief Hamming distance between two vectors
|
|
*
|
|
* @param[in] pA First vector of packed booleans
|
|
* @param[in] pB Second vector of packed booleans
|
|
* @param[in] numberOfBools Number of booleans
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
float32_t csi_hamming_distance(const uint32_t *pA, const uint32_t *pB, uint32_t numberOfBools);
|
|
|
|
/**
|
|
* @brief Jaccard distance between two vectors
|
|
*
|
|
* @param[in] pA First vector of packed booleans
|
|
* @param[in] pB Second vector of packed booleans
|
|
* @param[in] numberOfBools Number of booleans
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
float32_t csi_jaccard_distance(const uint32_t *pA, const uint32_t *pB, uint32_t numberOfBools);
|
|
|
|
/**
|
|
* @brief Kulsinski distance between two vectors
|
|
*
|
|
* @param[in] pA First vector of packed booleans
|
|
* @param[in] pB Second vector of packed booleans
|
|
* @param[in] numberOfBools Number of booleans
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
float32_t csi_kulsinski_distance(const uint32_t *pA, const uint32_t *pB, uint32_t numberOfBools);
|
|
|
|
/**
|
|
* @brief Roger Stanimoto distance between two vectors
|
|
*
|
|
* @param[in] pA First vector of packed booleans
|
|
* @param[in] pB Second vector of packed booleans
|
|
* @param[in] numberOfBools Number of booleans
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
float32_t csi_rogerstanimoto_distance(const uint32_t *pA, const uint32_t *pB, uint32_t numberOfBools);
|
|
|
|
/**
|
|
* @brief Russell-Rao distance between two vectors
|
|
*
|
|
* @param[in] pA First vector of packed booleans
|
|
* @param[in] pB Second vector of packed booleans
|
|
* @param[in] numberOfBools Number of booleans
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
float32_t csi_russellrao_distance(const uint32_t *pA, const uint32_t *pB, uint32_t numberOfBools);
|
|
|
|
/**
|
|
* @brief Sokal-Michener distance between two vectors
|
|
*
|
|
* @param[in] pA First vector of packed booleans
|
|
* @param[in] pB Second vector of packed booleans
|
|
* @param[in] numberOfBools Number of booleans
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
float32_t csi_sokalmichener_distance(const uint32_t *pA, const uint32_t *pB, uint32_t numberOfBools);
|
|
|
|
/**
|
|
* @brief Sokal-Sneath distance between two vectors
|
|
*
|
|
* @param[in] pA First vector of packed booleans
|
|
* @param[in] pB Second vector of packed booleans
|
|
* @param[in] numberOfBools Number of booleans
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
float32_t csi_sokalsneath_distance(const uint32_t *pA, const uint32_t *pB, uint32_t numberOfBools);
|
|
|
|
/**
|
|
* @brief Yule distance between two vectors
|
|
*
|
|
* @param[in] pA First vector of packed booleans
|
|
* @param[in] pB Second vector of packed booleans
|
|
* @param[in] numberOfBools Number of booleans
|
|
* @return distance
|
|
*
|
|
*/
|
|
|
|
float32_t csi_yule_distance(const uint32_t *pA, const uint32_t *pB, uint32_t numberOfBools);
|
|
|
|
|
|
/**
|
|
* @ingroup groupInterpolation
|
|
*/
|
|
|
|
/**
|
|
* @defgroup BilinearInterpolate Bilinear Interpolation
|
|
*
|
|
* Bilinear interpolation is an extension of linear interpolation applied to a two dimensional grid.
|
|
* The underlying function <code>f(x, y)</code> is sampled on a regular grid and the interpolation process
|
|
* determines values between the grid points.
|
|
* Bilinear interpolation is equivalent to two step linear interpolation, first in the x-dimension and then in the y-dimension.
|
|
* Bilinear interpolation is often used in image processing to rescale images.
|
|
* The library provides bilinear interpolation functions for Q7, Q15, Q31, and floating-point data types.
|
|
*
|
|
* <b>Algorithm</b>
|
|
* \par
|
|
* The instance structure used by the bilinear interpolation functions describes a two dimensional data table.
|
|
* For floating-point, the instance structure is defined as:
|
|
* <pre>
|
|
* typedef struct
|
|
* {
|
|
* uint16_t numRows;
|
|
* uint16_t numCols;
|
|
* float32_t *pData;
|
|
* } csi_bilinear_interp_instance_f32;
|
|
* </pre>
|
|
*
|
|
* \par
|
|
* where <code>numRows</code> specifies the number of rows in the table;
|
|
* <code>numCols</code> specifies the number of columns in the table;
|
|
* and <code>pData</code> points to an array of size <code>numRows*numCols</code> values.
|
|
* The data table <code>pTable</code> is organized in row order and the supplied data values fall on integer indexes.
|
|
* That is, table element (x,y) is located at <code>pTable[x + y*numCols]</code> where x and y are integers.
|
|
*
|
|
* \par
|
|
* Let <code>(x, y)</code> specify the desired interpolation point. Then define:
|
|
* <pre>
|
|
* XF = floor(x)
|
|
* YF = floor(y)
|
|
* </pre>
|
|
* \par
|
|
* The interpolated output point is computed as:
|
|
* <pre>
|
|
* f(x, y) = f(XF, YF) * (1-(x-XF)) * (1-(y-YF))
|
|
* + f(XF+1, YF) * (x-XF)*(1-(y-YF))
|
|
* + f(XF, YF+1) * (1-(x-XF))*(y-YF)
|
|
* + f(XF+1, YF+1) * (x-XF)*(y-YF)
|
|
* </pre>
|
|
* Note that the coordinates (x, y) contain integer and fractional components.
|
|
* The integer components specify which portion of the table to use while the
|
|
* fractional components control the interpolation processor.
|
|
*
|
|
* \par
|
|
* if (x,y) are outside of the table boundary, Bilinear interpolation returns zero output.
|
|
*/
|
|
|
|
|
|
/**
|
|
* @addtogroup BilinearInterpolate
|
|
* @{
|
|
*/
|
|
|
|
/**
|
|
* @brief Floating-point bilinear interpolation.
|
|
* @param[in,out] S points to an instance of the interpolation structure.
|
|
* @param[in] X interpolation coordinate.
|
|
* @param[in] Y interpolation coordinate.
|
|
* @return out interpolated value.
|
|
*/
|
|
__STATIC_FORCEINLINE float32_t csi_bilinear_interp_f32(
|
|
const csi_bilinear_interp_instance_f32 * S,
|
|
float32_t X,
|
|
float32_t Y)
|
|
{
|
|
float32_t out;
|
|
float32_t f00, f01, f10, f11;
|
|
float32_t *pData = S->pData;
|
|
int32_t xIndex, yIndex, index;
|
|
float32_t xdiff, ydiff;
|
|
float32_t b1, b2, b3, b4;
|
|
xIndex = (int32_t) X;
|
|
yIndex = (int32_t) Y;
|
|
|
|
/* Care taken for table outside boundary */
|
|
/* Returns zero output when values are outside table boundary */
|
|
if (xIndex < 0 || xIndex > (S->numRows - 1) || yIndex < 0 || yIndex > (S->numCols - 1)) {
|
|
return (0);
|
|
}
|
|
|
|
/* Calculation of index for two nearest points in X-direction */
|
|
index = (xIndex - 1) + (yIndex - 1) * S->numCols;
|
|
/* Read two nearest points in X-direction */
|
|
f00 = pData[index];
|
|
f01 = pData[index + 1];
|
|
/* Calculation of index for two nearest points in Y-direction */
|
|
index = (xIndex - 1) + (yIndex) * S->numCols;
|
|
/* Read two nearest points in Y-direction */
|
|
f10 = pData[index];
|
|
f11 = pData[index + 1];
|
|
/* Calculation of intermediate values */
|
|
b1 = f00;
|
|
b2 = f01 - f00;
|
|
b3 = f10 - f00;
|
|
b4 = f00 - f01 - f10 + f11;
|
|
/* Calculation of fractional part in X */
|
|
xdiff = X - xIndex;
|
|
/* Calculation of fractional part in Y */
|
|
ydiff = Y - yIndex;
|
|
/* Calculation of bi-linear interpolated output */
|
|
out = b1 + b2 * xdiff + b3 * ydiff + b4 * xdiff * ydiff;
|
|
/* return to application */
|
|
return (out);
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Q31 bilinear interpolation.
|
|
* @param[in,out] S points to an instance of the interpolation structure.
|
|
* @param[in] X interpolation coordinate in 12.20 format.
|
|
* @param[in] Y interpolation coordinate in 12.20 format.
|
|
* @return out interpolated value.
|
|
*/
|
|
__STATIC_FORCEINLINE q31_t csi_bilinear_interp_q31(
|
|
csi_bilinear_interp_instance_q31 * S,
|
|
q31_t X,
|
|
q31_t Y)
|
|
{
|
|
q31_t out; /* Temporary output */
|
|
q31_t acc = 0; /* output */
|
|
q31_t xfract, yfract; /* X, Y fractional parts */
|
|
q31_t x1, x2, y1, y2; /* Nearest output values */
|
|
int32_t rI, cI; /* Row and column indices */
|
|
q31_t *pYData = S->pData; /* pointer to output table values */
|
|
uint32_t nCols = S->numCols; /* num of rows */
|
|
/* Input is in 12.20 format */
|
|
/* 12 bits for the table index */
|
|
/* Index value calculation */
|
|
rI = ((X & (q31_t)0xFFF00000) >> 20);
|
|
/* Input is in 12.20 format */
|
|
/* 12 bits for the table index */
|
|
/* Index value calculation */
|
|
cI = ((Y & (q31_t)0xFFF00000) >> 20);
|
|
|
|
/* Care taken for table outside boundary */
|
|
/* Returns zero output when values are outside table boundary */
|
|
if (rI < 0 || rI > (S->numRows - 1) || cI < 0 || cI > (S->numCols - 1)) {
|
|
return (0);
|
|
}
|
|
|
|
/* 20 bits for the fractional part */
|
|
/* shift left xfract by 11 to keep 1.31 format */
|
|
xfract = (X & 0x000FFFFF) << 11U;
|
|
/* Read two nearest output values from the index */
|
|
x1 = pYData[(rI) + (int32_t)nCols * (cI) ];
|
|
x2 = pYData[(rI) + (int32_t)nCols * (cI) + 1];
|
|
/* 20 bits for the fractional part */
|
|
/* shift left yfract by 11 to keep 1.31 format */
|
|
yfract = (Y & 0x000FFFFF) << 11U;
|
|
/* Read two nearest output values from the index */
|
|
y1 = pYData[(rI) + (int32_t)nCols * (cI + 1) ];
|
|
y2 = pYData[(rI) + (int32_t)nCols * (cI + 1) + 1];
|
|
/* Calculation of x1 * (1-xfract ) * (1-yfract) and acc is in 3.29(q29) format */
|
|
out = ((q31_t) (((q63_t) x1 * (0x7FFFFFFF - xfract)) >> 32));
|
|
acc = ((q31_t) (((q63_t) out * (0x7FFFFFFF - yfract)) >> 32));
|
|
/* x2 * (xfract) * (1-yfract) in 3.29(q29) and adding to acc */
|
|
out = ((q31_t) ((q63_t) x2 * (0x7FFFFFFF - yfract) >> 32));
|
|
acc += ((q31_t) ((q63_t) out * (xfract) >> 32));
|
|
/* y1 * (1 - xfract) * (yfract) in 3.29(q29) and adding to acc */
|
|
out = ((q31_t) ((q63_t) y1 * (0x7FFFFFFF - xfract) >> 32));
|
|
acc += ((q31_t) ((q63_t) out * (yfract) >> 32));
|
|
/* y2 * (xfract) * (yfract) in 3.29(q29) and adding to acc */
|
|
out = ((q31_t) ((q63_t) y2 * (xfract) >> 32));
|
|
acc += ((q31_t) ((q63_t) out * (yfract) >> 32));
|
|
/* Convert acc to 1.31(q31) format */
|
|
return ((q31_t)(acc << 2));
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Q15 bilinear interpolation.
|
|
* @param[in,out] S points to an instance of the interpolation structure.
|
|
* @param[in] X interpolation coordinate in 12.20 format.
|
|
* @param[in] Y interpolation coordinate in 12.20 format.
|
|
* @return out interpolated value.
|
|
*/
|
|
__STATIC_FORCEINLINE q15_t csi_bilinear_interp_q15(
|
|
csi_bilinear_interp_instance_q15 * S,
|
|
q31_t X,
|
|
q31_t Y)
|
|
{
|
|
q63_t acc = 0; /* output */
|
|
q31_t out; /* Temporary output */
|
|
q15_t x1, x2, y1, y2; /* Nearest output values */
|
|
q31_t xfract, yfract; /* X, Y fractional parts */
|
|
int32_t rI, cI; /* Row and column indices */
|
|
q15_t *pYData = S->pData; /* pointer to output table values */
|
|
uint32_t nCols = S->numCols; /* num of rows */
|
|
/* Input is in 12.20 format */
|
|
/* 12 bits for the table index */
|
|
/* Index value calculation */
|
|
rI = ((X & (q31_t)0xFFF00000) >> 20);
|
|
/* Input is in 12.20 format */
|
|
/* 12 bits for the table index */
|
|
/* Index value calculation */
|
|
cI = ((Y & (q31_t)0xFFF00000) >> 20);
|
|
|
|
/* Care taken for table outside boundary */
|
|
/* Returns zero output when values are outside table boundary */
|
|
if (rI < 0 || rI > (S->numRows - 1) || cI < 0 || cI > (S->numCols - 1)) {
|
|
return (0);
|
|
}
|
|
|
|
/* 20 bits for the fractional part */
|
|
/* xfract should be in 12.20 format */
|
|
xfract = (X & 0x000FFFFF);
|
|
/* Read two nearest output values from the index */
|
|
x1 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI) ];
|
|
x2 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI) + 1];
|
|
/* 20 bits for the fractional part */
|
|
/* yfract should be in 12.20 format */
|
|
yfract = (Y & 0x000FFFFF);
|
|
/* Read two nearest output values from the index */
|
|
y1 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI + 1) ];
|
|
y2 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI + 1) + 1];
|
|
/* Calculation of x1 * (1-xfract ) * (1-yfract) and acc is in 13.51 format */
|
|
/* x1 is in 1.15(q15), xfract in 12.20 format and out is in 13.35 format */
|
|
/* convert 13.35 to 13.31 by right shifting and out is in 1.31 */
|
|
out = (q31_t) (((q63_t) x1 * (0xFFFFF - xfract)) >> 4U);
|
|
acc = ((q63_t) out * (0xFFFFF - yfract));
|
|
/* x2 * (xfract) * (1-yfract) in 1.51 and adding to acc */
|
|
out = (q31_t) (((q63_t) x2 * (0xFFFFF - yfract)) >> 4U);
|
|
acc += ((q63_t) out * (xfract));
|
|
/* y1 * (1 - xfract) * (yfract) in 1.51 and adding to acc */
|
|
out = (q31_t) (((q63_t) y1 * (0xFFFFF - xfract)) >> 4U);
|
|
acc += ((q63_t) out * (yfract));
|
|
/* y2 * (xfract) * (yfract) in 1.51 and adding to acc */
|
|
out = (q31_t) (((q63_t) y2 * (xfract)) >> 4U);
|
|
acc += ((q63_t) out * (yfract));
|
|
/* acc is in 13.51 format and down shift acc by 36 times */
|
|
/* Convert out to 1.15 format */
|
|
return ((q15_t)(acc >> 36));
|
|
}
|
|
|
|
|
|
/**
|
|
* @brief Q7 bilinear interpolation.
|
|
* @param[in,out] S points to an instance of the interpolation structure.
|
|
* @param[in] X interpolation coordinate in 12.20 format.
|
|
* @param[in] Y interpolation coordinate in 12.20 format.
|
|
* @return out interpolated value.
|
|
*/
|
|
__STATIC_FORCEINLINE q7_t csi_bilinear_interp_q7(
|
|
csi_bilinear_interp_instance_q7 * S,
|
|
q31_t X,
|
|
q31_t Y)
|
|
{
|
|
q63_t acc = 0; /* output */
|
|
q31_t out; /* Temporary output */
|
|
q31_t xfract, yfract; /* X, Y fractional parts */
|
|
q7_t x1, x2, y1, y2; /* Nearest output values */
|
|
int32_t rI, cI; /* Row and column indices */
|
|
q7_t *pYData = S->pData; /* pointer to output table values */
|
|
uint32_t nCols = S->numCols; /* num of rows */
|
|
/* Input is in 12.20 format */
|
|
/* 12 bits for the table index */
|
|
/* Index value calculation */
|
|
rI = ((X & (q31_t)0xFFF00000) >> 20);
|
|
/* Input is in 12.20 format */
|
|
/* 12 bits for the table index */
|
|
/* Index value calculation */
|
|
cI = ((Y & (q31_t)0xFFF00000) >> 20);
|
|
|
|
/* Care taken for table outside boundary */
|
|
/* Returns zero output when values are outside table boundary */
|
|
if (rI < 0 || rI > (S->numRows - 1) || cI < 0 || cI > (S->numCols - 1)) {
|
|
return (0);
|
|
}
|
|
|
|
/* 20 bits for the fractional part */
|
|
/* xfract should be in 12.20 format */
|
|
xfract = (X & (q31_t)0x000FFFFF);
|
|
/* Read two nearest output values from the index */
|
|
x1 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI) ];
|
|
x2 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI) + 1];
|
|
/* 20 bits for the fractional part */
|
|
/* yfract should be in 12.20 format */
|
|
yfract = (Y & (q31_t)0x000FFFFF);
|
|
/* Read two nearest output values from the index */
|
|
y1 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI + 1) ];
|
|
y2 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI + 1) + 1];
|
|
/* Calculation of x1 * (1-xfract ) * (1-yfract) and acc is in 16.47 format */
|
|
out = ((x1 * (0xFFFFF - xfract)));
|
|
acc = (((q63_t) out * (0xFFFFF - yfract)));
|
|
/* x2 * (xfract) * (1-yfract) in 2.22 and adding to acc */
|
|
out = ((x2 * (0xFFFFF - yfract)));
|
|
acc += (((q63_t) out * (xfract)));
|
|
/* y1 * (1 - xfract) * (yfract) in 2.22 and adding to acc */
|
|
out = ((y1 * (0xFFFFF - xfract)));
|
|
acc += (((q63_t) out * (yfract)));
|
|
/* y2 * (xfract) * (yfract) in 2.22 and adding to acc */
|
|
out = ((y2 * (yfract)));
|
|
acc += (((q63_t) out * (xfract)));
|
|
/* acc in 16.47 format and down shift by 40 to convert to 1.7 format */
|
|
return ((q7_t)(acc >> 40));
|
|
}
|
|
|
|
/**
|
|
* @} end of BilinearInterpolate group
|
|
*/
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
|
|
#endif /* _CSI_MATH_H */
|
|
|
|
/**
|
|
*
|
|
* End of file.
|
|
*/
|