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-rw-r--r--src/modules/mathlib/CMSIS/DSP_Lib/Source/TransformFunctions/arm_bitreversal.c222
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diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/TransformFunctions/arm_bitreversal.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/TransformFunctions/arm_bitreversal.c
deleted file mode 100644
index 3da790ebb..000000000
--- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/TransformFunctions/arm_bitreversal.c
+++ /dev/null
@@ -1,222 +0,0 @@
-/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_bitreversal.c
-*
-* Description: This file has common tables like Bitreverse, reciprocal etc which are used across different functions
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Version 1.1.0 2012/02/15
-* Updated with more optimizations, bug fixes and minor API changes.
-*
-* Version 1.0.10 2011/7/15
-* Initial Version
-* -------------------------------------------------------------------- */
-
-#include "arm_math.h"
-#include "arm_common_tables.h"
-
-/*
- * @brief In-place bit reversal function.
- * @param[in, out] *pSrc points to the in-place buffer of floating-point data type.
- * @param[in] fftSize length of the FFT.
- * @param[in] bitRevFactor bit reversal modifier that supports different size FFTs with the same bit reversal table.
- * @param[in] *pBitRevTab points to the bit reversal table.
- * @return none.
- */
-
-void arm_bitreversal_f32(
- float32_t * pSrc,
- uint16_t fftSize,
- uint16_t bitRevFactor,
- uint16_t * pBitRevTab)
-{
- uint16_t fftLenBy2, fftLenBy2p1;
- uint16_t i, j;
- float32_t in;
-
- /* Initializations */
- j = 0u;
- fftLenBy2 = fftSize >> 1u;
- fftLenBy2p1 = (fftSize >> 1u) + 1u;
-
- /* Bit Reversal Implementation */
- for (i = 0u; i <= (fftLenBy2 - 2u); i += 2u)
- {
- if(i < j)
- {
- /* pSrc[i] <-> pSrc[j]; */
- in = pSrc[2u * i];
- pSrc[2u * i] = pSrc[2u * j];
- pSrc[2u * j] = in;
-
- /* pSrc[i+1u] <-> pSrc[j+1u] */
- in = pSrc[(2u * i) + 1u];
- pSrc[(2u * i) + 1u] = pSrc[(2u * j) + 1u];
- pSrc[(2u * j) + 1u] = in;
-
- /* pSrc[i+fftLenBy2p1] <-> pSrc[j+fftLenBy2p1] */
- in = pSrc[2u * (i + fftLenBy2p1)];
- pSrc[2u * (i + fftLenBy2p1)] = pSrc[2u * (j + fftLenBy2p1)];
- pSrc[2u * (j + fftLenBy2p1)] = in;
-
- /* pSrc[i+fftLenBy2p1+1u] <-> pSrc[j+fftLenBy2p1+1u] */
- in = pSrc[(2u * (i + fftLenBy2p1)) + 1u];
- pSrc[(2u * (i + fftLenBy2p1)) + 1u] =
- pSrc[(2u * (j + fftLenBy2p1)) + 1u];
- pSrc[(2u * (j + fftLenBy2p1)) + 1u] = in;
-
- }
-
- /* pSrc[i+1u] <-> pSrc[j+1u] */
- in = pSrc[2u * (i + 1u)];
- pSrc[2u * (i + 1u)] = pSrc[2u * (j + fftLenBy2)];
- pSrc[2u * (j + fftLenBy2)] = in;
-
- /* pSrc[i+2u] <-> pSrc[j+2u] */
- in = pSrc[(2u * (i + 1u)) + 1u];
- pSrc[(2u * (i + 1u)) + 1u] = pSrc[(2u * (j + fftLenBy2)) + 1u];
- pSrc[(2u * (j + fftLenBy2)) + 1u] = in;
-
- /* Reading the index for the bit reversal */
- j = *pBitRevTab;
-
- /* Updating the bit reversal index depending on the fft length */
- pBitRevTab += bitRevFactor;
- }
-}
-
-
-
-/*
- * @brief In-place bit reversal function.
- * @param[in, out] *pSrc points to the in-place buffer of Q31 data type.
- * @param[in] fftLen length of the FFT.
- * @param[in] bitRevFactor bit reversal modifier that supports different size FFTs with the same bit reversal table
- * @param[in] *pBitRevTab points to bit reversal table.
- * @return none.
- */
-
-void arm_bitreversal_q31(
- q31_t * pSrc,
- uint32_t fftLen,
- uint16_t bitRevFactor,
- uint16_t * pBitRevTable)
-{
- uint32_t fftLenBy2, fftLenBy2p1, i, j;
- q31_t in;
-
- /* Initializations */
- j = 0u;
- fftLenBy2 = fftLen / 2u;
- fftLenBy2p1 = (fftLen / 2u) + 1u;
-
- /* Bit Reversal Implementation */
- for (i = 0u; i <= (fftLenBy2 - 2u); i += 2u)
- {
- if(i < j)
- {
- /* pSrc[i] <-> pSrc[j]; */
- in = pSrc[2u * i];
- pSrc[2u * i] = pSrc[2u * j];
- pSrc[2u * j] = in;
-
- /* pSrc[i+1u] <-> pSrc[j+1u] */
- in = pSrc[(2u * i) + 1u];
- pSrc[(2u * i) + 1u] = pSrc[(2u * j) + 1u];
- pSrc[(2u * j) + 1u] = in;
-
- /* pSrc[i+fftLenBy2p1] <-> pSrc[j+fftLenBy2p1] */
- in = pSrc[2u * (i + fftLenBy2p1)];
- pSrc[2u * (i + fftLenBy2p1)] = pSrc[2u * (j + fftLenBy2p1)];
- pSrc[2u * (j + fftLenBy2p1)] = in;
-
- /* pSrc[i+fftLenBy2p1+1u] <-> pSrc[j+fftLenBy2p1+1u] */
- in = pSrc[(2u * (i + fftLenBy2p1)) + 1u];
- pSrc[(2u * (i + fftLenBy2p1)) + 1u] =
- pSrc[(2u * (j + fftLenBy2p1)) + 1u];
- pSrc[(2u * (j + fftLenBy2p1)) + 1u] = in;
-
- }
-
- /* pSrc[i+1u] <-> pSrc[j+1u] */
- in = pSrc[2u * (i + 1u)];
- pSrc[2u * (i + 1u)] = pSrc[2u * (j + fftLenBy2)];
- pSrc[2u * (j + fftLenBy2)] = in;
-
- /* pSrc[i+2u] <-> pSrc[j+2u] */
- in = pSrc[(2u * (i + 1u)) + 1u];
- pSrc[(2u * (i + 1u)) + 1u] = pSrc[(2u * (j + fftLenBy2)) + 1u];
- pSrc[(2u * (j + fftLenBy2)) + 1u] = in;
-
- /* Reading the index for the bit reversal */
- j = *pBitRevTable;
-
- /* Updating the bit reversal index depending on the fft length */
- pBitRevTable += bitRevFactor;
- }
-}
-
-
-
-/*
- * @brief In-place bit reversal function.
- * @param[in, out] *pSrc points to the in-place buffer of Q15 data type.
- * @param[in] fftLen length of the FFT.
- * @param[in] bitRevFactor bit reversal modifier that supports different size FFTs with the same bit reversal table
- * @param[in] *pBitRevTab points to bit reversal table.
- * @return none.
- */
-
-void arm_bitreversal_q15(
- q15_t * pSrc16,
- uint32_t fftLen,
- uint16_t bitRevFactor,
- uint16_t * pBitRevTab)
-{
- q31_t *pSrc = (q31_t *) pSrc16;
- q31_t in;
- uint32_t fftLenBy2, fftLenBy2p1;
- uint32_t i, j;
-
- /* Initializations */
- j = 0u;
- fftLenBy2 = fftLen / 2u;
- fftLenBy2p1 = (fftLen / 2u) + 1u;
-
- /* Bit Reversal Implementation */
- for (i = 0u; i <= (fftLenBy2 - 2u); i += 2u)
- {
- if(i < j)
- {
- /* pSrc[i] <-> pSrc[j]; */
- /* pSrc[i+1u] <-> pSrc[j+1u] */
- in = pSrc[i];
- pSrc[i] = pSrc[j];
- pSrc[j] = in;
-
- /* pSrc[i + fftLenBy2p1] <-> pSrc[j + fftLenBy2p1]; */
- /* pSrc[i + fftLenBy2p1+1u] <-> pSrc[j + fftLenBy2p1+1u] */
- in = pSrc[i + fftLenBy2p1];
- pSrc[i + fftLenBy2p1] = pSrc[j + fftLenBy2p1];
- pSrc[j + fftLenBy2p1] = in;
- }
-
- /* pSrc[i+1u] <-> pSrc[j+fftLenBy2]; */
- /* pSrc[i+2] <-> pSrc[j+fftLenBy2+1u] */
- in = pSrc[i + 1u];
- pSrc[i + 1u] = pSrc[j + fftLenBy2];
- pSrc[j + fftLenBy2] = in;
-
- /* Reading the index for the bit reversal */
- j = *pBitRevTab;
-
- /* Updating the bit reversal index depending on the fft length */
- pBitRevTab += bitRevFactor;
- }
-}
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