From 6ab94e0b318884bbcb95e2ea3835f951502e1d99 Mon Sep 17 00:00:00 2001 From: jaseg Date: Wed, 14 Oct 2020 12:47:28 +0200 Subject: Move firmware into subdirectory --- .../DSP/Source/StatisticsFunctions/arm_std_q15.c | 174 --------------------- 1 file changed, 174 deletions(-) delete mode 100644 hid-dials/Drivers/CMSIS/DSP/Source/StatisticsFunctions/arm_std_q15.c (limited to 'hid-dials/Drivers/CMSIS/DSP/Source/StatisticsFunctions/arm_std_q15.c') diff --git a/hid-dials/Drivers/CMSIS/DSP/Source/StatisticsFunctions/arm_std_q15.c b/hid-dials/Drivers/CMSIS/DSP/Source/StatisticsFunctions/arm_std_q15.c deleted file mode 100644 index e3626d8..0000000 --- a/hid-dials/Drivers/CMSIS/DSP/Source/StatisticsFunctions/arm_std_q15.c +++ /dev/null @@ -1,174 +0,0 @@ -/* ---------------------------------------------------------------------- - * Project: CMSIS DSP Library - * Title: arm_std_q15.c - * Description: Standard deviation of an array of Q15 vector - * - * $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" - -/** - * @ingroup groupStats - */ - -/** - * @addtogroup STD - * @{ - */ - -/** - * @brief Standard deviation of the elements of a Q15 vector. - * @param[in] *pSrc points to the input vector - * @param[in] blockSize length of the input vector - * @param[out] *pResult standard deviation value returned here - * @return none. - * @details - * Scaling and Overflow Behavior: - * - * \par - * The function is implemented using a 64-bit internal accumulator. - * The input is represented in 1.15 format. - * Intermediate multiplication yields a 2.30 format, and this - * result is added without saturation to a 64-bit accumulator in 34.30 format. - * With 33 guard bits in the accumulator, there is no risk of overflow, and the - * full precision of the intermediate multiplication is preserved. - * Finally, the 34.30 result is truncated to 34.15 format by discarding the lower - * 15 bits, and then saturated to yield a result in 1.15 format. - */ - -void arm_std_q15( - q15_t * pSrc, - uint32_t blockSize, - q15_t * pResult) -{ - q31_t sum = 0; /* Accumulator */ - q31_t meanOfSquares, squareOfMean; /* square of mean and mean of square */ - uint32_t blkCnt; /* loop counter */ - q63_t sumOfSquares = 0; /* Accumulator */ -#if defined (ARM_MATH_DSP) - q31_t in; /* input value */ - q15_t in1; /* input value */ -#else - q15_t in; /* input value */ -#endif - - if (blockSize == 1U) - { - *pResult = 0; - return; - } - -#if defined (ARM_MATH_DSP) - /* Run the below code for Cortex-M4 and Cortex-M3 */ - - /*loop Unrolling */ - blkCnt = blockSize >> 2U; - - /* First part of the processing with loop unrolling. Compute 4 outputs at a time. - ** a second loop below computes the remaining 1 to 3 samples. */ - while (blkCnt > 0U) - { - /* C = (A[0] * A[0] + A[1] * A[1] + ... + A[blockSize-1] * A[blockSize-1]) */ - /* Compute Sum of squares of the input samples - * and then store the result in a temporary variable, sum. */ - in = *__SIMD32(pSrc)++; - sum += ((in << 16U) >> 16U); - sum += (in >> 16U); - sumOfSquares = __SMLALD(in, in, sumOfSquares); - in = *__SIMD32(pSrc)++; - sum += ((in << 16U) >> 16U); - sum += (in >> 16U); - sumOfSquares = __SMLALD(in, in, sumOfSquares); - - /* Decrement the loop counter */ - blkCnt--; - } - - /* If the blockSize is not a multiple of 4, compute any remaining output samples here. - ** No loop unrolling is used. */ - blkCnt = blockSize % 0x4U; - - while (blkCnt > 0U) - { - /* C = (A[0] * A[0] + A[1] * A[1] + ... + A[blockSize-1] * A[blockSize-1]) */ - /* Compute Sum of squares of the input samples - * and then store the result in a temporary variable, sum. */ - in1 = *pSrc++; - sumOfSquares = __SMLALD(in1, in1, sumOfSquares); - sum += in1; - - /* Decrement the loop counter */ - blkCnt--; - } - - /* Compute Mean of squares of the input samples - * and then store the result in a temporary variable, meanOfSquares. */ - meanOfSquares = (q31_t)(sumOfSquares / (q63_t)(blockSize - 1U)); - - /* Compute square of mean */ - squareOfMean = (q31_t)((q63_t)sum * sum / (q63_t)(blockSize * (blockSize - 1U))); - - /* mean of the squares minus the square of the mean. */ - /* Compute standard deviation and store the result to the destination */ - arm_sqrt_q15(__SSAT((meanOfSquares - squareOfMean) >> 15U, 16U), pResult); - -#else - /* Run the below code for Cortex-M0 */ - - /* Loop over blockSize number of values */ - blkCnt = blockSize; - - while (blkCnt > 0U) - { - /* C = (A[0] * A[0] + A[1] * A[1] + ... + A[blockSize-1] * A[blockSize-1]) */ - /* Compute Sum of squares of the input samples - * and then store the result in a temporary variable, sumOfSquares. */ - in = *pSrc++; - sumOfSquares += (in * in); - - /* C = (A[0] + A[1] + A[2] + ... + A[blockSize-1]) */ - /* Compute sum of all input values and then store the result in a temporary variable, sum. */ - sum += in; - - /* Decrement the loop counter */ - blkCnt--; - } - - /* Compute Mean of squares of the input samples - * and then store the result in a temporary variable, meanOfSquares. */ - meanOfSquares = (q31_t)(sumOfSquares / (q63_t)(blockSize - 1U)); - - /* Compute square of mean */ - squareOfMean = (q31_t)((q63_t)sum * sum / (q63_t)(blockSize * (blockSize - 1U))); - - /* mean of the squares minus the square of the mean. */ - /* Compute standard deviation and store the result to the destination */ - arm_sqrt_q15(__SSAT((meanOfSquares - squareOfMean) >> 15U, 16U), pResult); - -#endif /* #if defined (ARM_MATH_DSP) */ -} - -/** - * @} end of STD group - */ -- cgit