From 94f94260ace13688285fc8c62687079b26c18854 Mon Sep 17 00:00:00 2001 From: jaseg Date: Sun, 20 Dec 2020 15:18:02 +0100 Subject: Submodule-cache WIP --- .../TransformFunctions/arm_cfft_radix2_q31.c | 338 --------------------- 1 file changed, 338 deletions(-) delete mode 100644 fw/cdc-dials/Drivers/CMSIS/DSP/Source/TransformFunctions/arm_cfft_radix2_q31.c (limited to 'fw/cdc-dials/Drivers/CMSIS/DSP/Source/TransformFunctions/arm_cfft_radix2_q31.c') diff --git a/fw/cdc-dials/Drivers/CMSIS/DSP/Source/TransformFunctions/arm_cfft_radix2_q31.c b/fw/cdc-dials/Drivers/CMSIS/DSP/Source/TransformFunctions/arm_cfft_radix2_q31.c deleted file mode 100644 index e69400c..0000000 --- a/fw/cdc-dials/Drivers/CMSIS/DSP/Source/TransformFunctions/arm_cfft_radix2_q31.c +++ /dev/null @@ -1,338 +0,0 @@ -/* ---------------------------------------------------------------------- - * Project: CMSIS DSP Library - * Title: arm_cfft_radix2_q31.c - * Description: Radix-2 Decimation in Frequency CFFT & CIFFT Fixed point processing function - * - * $Date: 27. January 2017 - * $Revision: V.1.5.1 - * - * Target Processor: Cortex-M cores - * -------------------------------------------------------------------- */ -/* - * Copyright (C) 2010-2017 ARM Limited or its affiliates. All rights reserved. - * - * SPDX-License-Identifier: Apache-2.0 - * - * Licensed under the Apache License, Version 2.0 (the License); you may - * not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an AS IS BASIS, WITHOUT - * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include "arm_math.h" - -void arm_radix2_butterfly_q31( - q31_t * pSrc, - uint32_t fftLen, - q31_t * pCoef, - uint16_t twidCoefModifier); - -void arm_radix2_butterfly_inverse_q31( - q31_t * pSrc, - uint32_t fftLen, - q31_t * pCoef, - uint16_t twidCoefModifier); - -void arm_bitreversal_q31( - q31_t * pSrc, - uint32_t fftLen, - uint16_t bitRevFactor, - uint16_t * pBitRevTab); - -/** -* @ingroup groupTransforms -*/ - -/** -* @addtogroup ComplexFFT -* @{ -*/ - -/** -* @details -* @brief Processing function for the fixed-point CFFT/CIFFT. -* @deprecated Do not use this function. It has been superseded by \ref arm_cfft_q31 and will be removed -* @param[in] *S points to an instance of the fixed-point CFFT/CIFFT structure. -* @param[in, out] *pSrc points to the complex data buffer of size 2*fftLen. Processing occurs in-place. -* @return none. -*/ - -void arm_cfft_radix2_q31( -const arm_cfft_radix2_instance_q31 * S, -q31_t * pSrc) -{ - - if (S->ifftFlag == 1U) - { - arm_radix2_butterfly_inverse_q31(pSrc, S->fftLen, - S->pTwiddle, S->twidCoefModifier); - } - else - { - arm_radix2_butterfly_q31(pSrc, S->fftLen, - S->pTwiddle, S->twidCoefModifier); - } - - arm_bitreversal_q31(pSrc, S->fftLen, S->bitRevFactor, S->pBitRevTable); -} - -/** -* @} end of ComplexFFT group -*/ - -void arm_radix2_butterfly_q31( -q31_t * pSrc, -uint32_t fftLen, -q31_t * pCoef, -uint16_t twidCoefModifier) -{ - - unsigned i, j, k, l, m; - unsigned n1, n2, ia; - q31_t xt, yt, cosVal, sinVal; - q31_t p0, p1; - - //N = fftLen; - n2 = fftLen; - - n1 = n2; - n2 = n2 >> 1; - ia = 0; - - // loop for groups - for (i = 0; i < n2; i++) - { - cosVal = pCoef[ia * 2]; - sinVal = pCoef[(ia * 2) + 1]; - ia = ia + twidCoefModifier; - - l = i + n2; - xt = (pSrc[2 * i] >> 1U) - (pSrc[2 * l] >> 1U); - pSrc[2 * i] = ((pSrc[2 * i] >> 1U) + (pSrc[2 * l] >> 1U)) >> 1U; - - yt = (pSrc[2 * i + 1] >> 1U) - (pSrc[2 * l + 1] >> 1U); - pSrc[2 * i + 1] = - ((pSrc[2 * l + 1] >> 1U) + (pSrc[2 * i + 1] >> 1U)) >> 1U; - - mult_32x32_keep32_R(p0, xt, cosVal); - mult_32x32_keep32_R(p1, yt, cosVal); - multAcc_32x32_keep32_R(p0, yt, sinVal); - multSub_32x32_keep32_R(p1, xt, sinVal); - - pSrc[2U * l] = p0; - pSrc[2U * l + 1U] = p1; - - } // groups loop end - - twidCoefModifier <<= 1U; - - // loop for stage - for (k = fftLen / 2; k > 2; k = k >> 1) - { - n1 = n2; - n2 = n2 >> 1; - ia = 0; - - // loop for groups - for (j = 0; j < n2; j++) - { - cosVal = pCoef[ia * 2]; - sinVal = pCoef[(ia * 2) + 1]; - ia = ia + twidCoefModifier; - - // loop for butterfly - i = j; - m = fftLen / n1; - do - { - l = i + n2; - xt = pSrc[2 * i] - pSrc[2 * l]; - pSrc[2 * i] = (pSrc[2 * i] + pSrc[2 * l]) >> 1U; - - yt = pSrc[2 * i + 1] - pSrc[2 * l + 1]; - pSrc[2 * i + 1] = (pSrc[2 * l + 1] + pSrc[2 * i + 1]) >> 1U; - - mult_32x32_keep32_R(p0, xt, cosVal); - mult_32x32_keep32_R(p1, yt, cosVal); - multAcc_32x32_keep32_R(p0, yt, sinVal); - multSub_32x32_keep32_R(p1, xt, sinVal); - - pSrc[2U * l] = p0; - pSrc[2U * l + 1U] = p1; - i += n1; - m--; - } while ( m > 0); // butterfly loop end - - } // groups loop end - - twidCoefModifier <<= 1U; - } // stages loop end - - n1 = n2; - n2 = n2 >> 1; - ia = 0; - - cosVal = pCoef[ia * 2]; - sinVal = pCoef[(ia * 2) + 1]; - ia = ia + twidCoefModifier; - - // loop for butterfly - for (i = 0; i < fftLen; i += n1) - { - l = i + n2; - xt = pSrc[2 * i] - pSrc[2 * l]; - pSrc[2 * i] = (pSrc[2 * i] + pSrc[2 * l]); - - yt = pSrc[2 * i + 1] - pSrc[2 * l + 1]; - pSrc[2 * i + 1] = (pSrc[2 * l + 1] + pSrc[2 * i + 1]); - - pSrc[2U * l] = xt; - - pSrc[2U * l + 1U] = yt; - - i += n1; - l = i + n2; - - xt = pSrc[2 * i] - pSrc[2 * l]; - pSrc[2 * i] = (pSrc[2 * i] + pSrc[2 * l]); - - yt = pSrc[2 * i + 1] - pSrc[2 * l + 1]; - pSrc[2 * i + 1] = (pSrc[2 * l + 1] + pSrc[2 * i + 1]); - - pSrc[2U * l] = xt; - - pSrc[2U * l + 1U] = yt; - - } // butterfly loop end - -} - - -void arm_radix2_butterfly_inverse_q31( -q31_t * pSrc, -uint32_t fftLen, -q31_t * pCoef, -uint16_t twidCoefModifier) -{ - - unsigned i, j, k, l; - unsigned n1, n2, ia; - q31_t xt, yt, cosVal, sinVal; - q31_t p0, p1; - - //N = fftLen; - n2 = fftLen; - - n1 = n2; - n2 = n2 >> 1; - ia = 0; - - // loop for groups - for (i = 0; i < n2; i++) - { - cosVal = pCoef[ia * 2]; - sinVal = pCoef[(ia * 2) + 1]; - ia = ia + twidCoefModifier; - - l = i + n2; - xt = (pSrc[2 * i] >> 1U) - (pSrc[2 * l] >> 1U); - pSrc[2 * i] = ((pSrc[2 * i] >> 1U) + (pSrc[2 * l] >> 1U)) >> 1U; - - yt = (pSrc[2 * i + 1] >> 1U) - (pSrc[2 * l + 1] >> 1U); - pSrc[2 * i + 1] = - ((pSrc[2 * l + 1] >> 1U) + (pSrc[2 * i + 1] >> 1U)) >> 1U; - - mult_32x32_keep32_R(p0, xt, cosVal); - mult_32x32_keep32_R(p1, yt, cosVal); - multSub_32x32_keep32_R(p0, yt, sinVal); - multAcc_32x32_keep32_R(p1, xt, sinVal); - - pSrc[2U * l] = p0; - pSrc[2U * l + 1U] = p1; - } // groups loop end - - twidCoefModifier = twidCoefModifier << 1U; - - // loop for stage - for (k = fftLen / 2; k > 2; k = k >> 1) - { - n1 = n2; - n2 = n2 >> 1; - ia = 0; - - // loop for groups - for (j = 0; j < n2; j++) - { - cosVal = pCoef[ia * 2]; - sinVal = pCoef[(ia * 2) + 1]; - ia = ia + twidCoefModifier; - - // loop for butterfly - for (i = j; i < fftLen; i += n1) - { - l = i + n2; - xt = pSrc[2 * i] - pSrc[2 * l]; - pSrc[2 * i] = (pSrc[2 * i] + pSrc[2 * l]) >> 1U; - - yt = pSrc[2 * i + 1] - pSrc[2 * l + 1]; - pSrc[2 * i + 1] = (pSrc[2 * l + 1] + pSrc[2 * i + 1]) >> 1U; - - mult_32x32_keep32_R(p0, xt, cosVal); - mult_32x32_keep32_R(p1, yt, cosVal); - multSub_32x32_keep32_R(p0, yt, sinVal); - multAcc_32x32_keep32_R(p1, xt, sinVal); - - pSrc[2U * l] = p0; - pSrc[2U * l + 1U] = p1; - } // butterfly loop end - - } // groups loop end - - twidCoefModifier = twidCoefModifier << 1U; - } // stages loop end - - n1 = n2; - n2 = n2 >> 1; - ia = 0; - - cosVal = pCoef[ia * 2]; - sinVal = pCoef[(ia * 2) + 1]; - ia = ia + twidCoefModifier; - - // loop for butterfly - for (i = 0; i < fftLen; i += n1) - { - l = i + n2; - xt = pSrc[2 * i] - pSrc[2 * l]; - pSrc[2 * i] = (pSrc[2 * i] + pSrc[2 * l]); - - yt = pSrc[2 * i + 1] - pSrc[2 * l + 1]; - pSrc[2 * i + 1] = (pSrc[2 * l + 1] + pSrc[2 * i + 1]); - - pSrc[2U * l] = xt; - - pSrc[2U * l + 1U] = yt; - - i += n1; - l = i + n2; - - xt = pSrc[2 * i] - pSrc[2 * l]; - pSrc[2 * i] = (pSrc[2 * i] + pSrc[2 * l]); - - yt = pSrc[2 * i + 1] - pSrc[2 * l + 1]; - pSrc[2 * i + 1] = (pSrc[2 * l + 1] + pSrc[2 * i + 1]); - - pSrc[2U * l] = xt; - - pSrc[2U * l + 1U] = yt; - - } // butterfly loop end - -} -- cgit