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 --- .../arm_cmplx_mult_cmplx_q15.c | 181 +++++++++++++++++++++ 1 file changed, 181 insertions(+) create mode 100644 fw/cdc-dials/Drivers/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_mult_cmplx_q15.c (limited to 'fw/cdc-dials/Drivers/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_mult_cmplx_q15.c') diff --git a/fw/cdc-dials/Drivers/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_mult_cmplx_q15.c b/fw/cdc-dials/Drivers/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_mult_cmplx_q15.c new file mode 100644 index 0000000..1dce470 --- /dev/null +++ b/fw/cdc-dials/Drivers/CMSIS/DSP/Source/ComplexMathFunctions/arm_cmplx_mult_cmplx_q15.c @@ -0,0 +1,181 @@ +/* ---------------------------------------------------------------------- + * Project: CMSIS DSP Library + * Title: arm_cmplx_mult_cmplx_q15.c + * Description: Q15 complex-by-complex multiplication + * + * $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 groupCmplxMath + */ + +/** + * @addtogroup CmplxByCmplxMult + * @{ + */ + +/** + * @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 + * @return none. + * + * Scaling and Overflow Behavior: + * \par + * The function implements 1.15 by 1.15 multiplications and finally output is converted into 3.13 format. + */ + +void arm_cmplx_mult_cmplx_q15( + q15_t * pSrcA, + q15_t * pSrcB, + q15_t * pDst, + uint32_t numSamples) +{ + q15_t a, b, c, d; /* Temporary variables to store real and imaginary values */ + +#if defined (ARM_MATH_DSP) + + /* Run the below code for Cortex-M4 and Cortex-M3 */ + uint32_t blkCnt; /* loop counters */ + + /* loop Unrolling */ + blkCnt = numSamples >> 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[2 * i] = A[2 * i] * B[2 * i] - A[2 * i + 1] * B[2 * i + 1]. */ + /* C[2 * i + 1] = A[2 * i] * B[2 * i + 1] + A[2 * i + 1] * B[2 * i]. */ + a = *pSrcA++; + b = *pSrcA++; + c = *pSrcB++; + d = *pSrcB++; + + /* store the result in 3.13 format in the destination buffer. */ + *pDst++ = + (q15_t) (q31_t) (((q31_t) a * c) >> 17) - (((q31_t) b * d) >> 17); + /* store the result in 3.13 format in the destination buffer. */ + *pDst++ = + (q15_t) (q31_t) (((q31_t) a * d) >> 17) + (((q31_t) b * c) >> 17); + + a = *pSrcA++; + b = *pSrcA++; + c = *pSrcB++; + d = *pSrcB++; + + /* store the result in 3.13 format in the destination buffer. */ + *pDst++ = + (q15_t) (q31_t) (((q31_t) a * c) >> 17) - (((q31_t) b * d) >> 17); + /* store the result in 3.13 format in the destination buffer. */ + *pDst++ = + (q15_t) (q31_t) (((q31_t) a * d) >> 17) + (((q31_t) b * c) >> 17); + + a = *pSrcA++; + b = *pSrcA++; + c = *pSrcB++; + d = *pSrcB++; + + /* store the result in 3.13 format in the destination buffer. */ + *pDst++ = + (q15_t) (q31_t) (((q31_t) a * c) >> 17) - (((q31_t) b * d) >> 17); + /* store the result in 3.13 format in the destination buffer. */ + *pDst++ = + (q15_t) (q31_t) (((q31_t) a * d) >> 17) + (((q31_t) b * c) >> 17); + + a = *pSrcA++; + b = *pSrcA++; + c = *pSrcB++; + d = *pSrcB++; + + /* store the result in 3.13 format in the destination buffer. */ + *pDst++ = + (q15_t) (q31_t) (((q31_t) a * c) >> 17) - (((q31_t) b * d) >> 17); + /* store the result in 3.13 format in the destination buffer. */ + *pDst++ = + (q15_t) (q31_t) (((q31_t) a * d) >> 17) + (((q31_t) b * c) >> 17); + + /* Decrement the blockSize loop counter */ + blkCnt--; + } + + /* If the blockSize is not a multiple of 4, compute any remaining output samples here. + ** No loop unrolling is used. */ + blkCnt = numSamples % 0x4U; + + while (blkCnt > 0U) + { + /* C[2 * i] = A[2 * i] * B[2 * i] - A[2 * i + 1] * B[2 * i + 1]. */ + /* C[2 * i + 1] = A[2 * i] * B[2 * i + 1] + A[2 * i + 1] * B[2 * i]. */ + a = *pSrcA++; + b = *pSrcA++; + c = *pSrcB++; + d = *pSrcB++; + + /* store the result in 3.13 format in the destination buffer. */ + *pDst++ = + (q15_t) (q31_t) (((q31_t) a * c) >> 17) - (((q31_t) b * d) >> 17); + /* store the result in 3.13 format in the destination buffer. */ + *pDst++ = + (q15_t) (q31_t) (((q31_t) a * d) >> 17) + (((q31_t) b * c) >> 17); + + /* Decrement the blockSize loop counter */ + blkCnt--; + } + +#else + + /* Run the below code for Cortex-M0 */ + + while (numSamples > 0U) + { + /* C[2 * i] = A[2 * i] * B[2 * i] - A[2 * i + 1] * B[2 * i + 1]. */ + /* C[2 * i + 1] = A[2 * i] * B[2 * i + 1] + A[2 * i + 1] * B[2 * i]. */ + a = *pSrcA++; + b = *pSrcA++; + c = *pSrcB++; + d = *pSrcB++; + + /* store the result in 3.13 format in the destination buffer. */ + *pDst++ = + (q15_t) (q31_t) (((q31_t) a * c) >> 17) - (((q31_t) b * d) >> 17); + /* store the result in 3.13 format in the destination buffer. */ + *pDst++ = + (q15_t) (q31_t) (((q31_t) a * d) >> 17) + (((q31_t) b * c) >> 17); + + /* Decrement the blockSize loop counter */ + numSamples--; + } + +#endif /* #if defined (ARM_MATH_DSP) */ + +} + +/** + * @} end of CmplxByCmplxMult group + */ -- cgit