From d8b6d18d2fefee381eb6a26334a13e94126b6d8e Mon Sep 17 00:00:00 2001 From: jaseg Date: Mon, 21 Dec 2020 16:22:11 +0100 Subject: Remove obsolete template code from fw --- .../Source/FilteringFunctions/arm_fir_sparse_q7.c | 469 --------------------- 1 file changed, 469 deletions(-) delete mode 100644 fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_fir_sparse_q7.c (limited to 'fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_fir_sparse_q7.c') diff --git a/fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_fir_sparse_q7.c b/fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_fir_sparse_q7.c deleted file mode 100644 index 252ba95..0000000 --- a/fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_fir_sparse_q7.c +++ /dev/null @@ -1,469 +0,0 @@ -/* ---------------------------------------------------------------------- - * Project: CMSIS DSP Library - * Title: arm_fir_sparse_q7.c - * Description: Q7 sparse FIR filter 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" - - -/** - * @ingroup groupFilters - */ - -/** - * @addtogroup FIR_Sparse - * @{ - */ - - -/** - * @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. - * @return none. - * - * Scaling and Overflow Behavior: - * \par - * The function is implemented using a 32-bit internal accumulator. - * Both coefficients and state variables are represented in 1.7 format and multiplications yield a 2.14 result. - * The 2.14 intermediate results are accumulated in a 32-bit accumulator in 18.14 format. - * There is no risk of internal overflow with this approach and the full precision of intermediate multiplications is preserved. - * The accumulator is then converted to 18.7 format by discarding the low 7 bits. - * Finally, the result is truncated to 1.7 format. - */ - -void arm_fir_sparse_q7( - arm_fir_sparse_instance_q7 * S, - q7_t * pSrc, - q7_t * pDst, - q7_t * pScratchIn, - q31_t * pScratchOut, - uint32_t blockSize) -{ - - q7_t *pState = S->pState; /* State pointer */ - q7_t *pCoeffs = S->pCoeffs; /* Coefficient pointer */ - q7_t *px; /* Scratch buffer pointer */ - q7_t *py = pState; /* Temporary pointers for state buffer */ - q7_t *pb = pScratchIn; /* Temporary pointers for scratch buffer */ - q7_t *pOut = pDst; /* Destination pointer */ - int32_t *pTapDelay = S->pTapDelay; /* Pointer to the array containing offset of the non-zero tap values. */ - uint32_t delaySize = S->maxDelay + blockSize; /* state length */ - uint16_t numTaps = S->numTaps; /* Filter order */ - int32_t readIndex; /* Read index of the state buffer */ - uint32_t tapCnt, blkCnt; /* loop counters */ - q7_t coeff = *pCoeffs++; /* Read the coefficient value */ - q31_t *pScr2 = pScratchOut; /* Working pointer for scratch buffer of output values */ - q31_t in; - - -#if defined (ARM_MATH_DSP) - - /* Run the below code for Cortex-M4 and Cortex-M3 */ - - q7_t in1, in2, in3, in4; - - /* BlockSize of Input samples are copied into the state buffer */ - /* StateIndex points to the starting position to write in the state buffer */ - arm_circularWrite_q7(py, (int32_t) delaySize, &S->stateIndex, 1, pSrc, 1, - blockSize); - - /* Loop over the number of taps. */ - tapCnt = numTaps; - - /* Read Index, from where the state buffer should be read, is calculated. */ - readIndex = ((int32_t) S->stateIndex - (int32_t) blockSize) - *pTapDelay++; - - /* Wraparound of readIndex */ - if (readIndex < 0) - { - readIndex += (int32_t) delaySize; - } - - /* Working pointer for state buffer is updated */ - py = pState; - - /* blockSize samples are read from the state buffer */ - arm_circularRead_q7(py, (int32_t) delaySize, &readIndex, 1, pb, pb, - (int32_t) blockSize, 1, blockSize); - - /* Working pointer for the scratch buffer of state values */ - px = pb; - - /* Working pointer for scratch buffer of output values */ - pScratchOut = pScr2; - - /* Loop over the blockSize. Unroll by a factor of 4. - * Compute 4 multiplications at a time. */ - blkCnt = blockSize >> 2; - - while (blkCnt > 0U) - { - /* Perform multiplication and store in the scratch buffer */ - *pScratchOut++ = ((q31_t) * px++ * coeff); - *pScratchOut++ = ((q31_t) * px++ * coeff); - *pScratchOut++ = ((q31_t) * px++ * coeff); - *pScratchOut++ = ((q31_t) * px++ * coeff); - - /* Decrement the loop counter */ - blkCnt--; - } - - /* If the blockSize is not a multiple of 4, - * compute the remaining samples */ - blkCnt = blockSize % 0x4U; - - while (blkCnt > 0U) - { - /* Perform multiplication and store in the scratch buffer */ - *pScratchOut++ = ((q31_t) * px++ * coeff); - - /* Decrement the loop counter */ - blkCnt--; - } - - /* Load the coefficient value and - * increment the coefficient buffer for the next set of state values */ - coeff = *pCoeffs++; - - /* Read Index, from where the state buffer should be read, is calculated. */ - readIndex = ((int32_t) S->stateIndex - (int32_t) blockSize) - *pTapDelay++; - - /* Wraparound of readIndex */ - if (readIndex < 0) - { - readIndex += (int32_t) delaySize; - } - - /* Loop over the number of taps. */ - tapCnt = (uint32_t) numTaps - 2U; - - while (tapCnt > 0U) - { - /* Working pointer for state buffer is updated */ - py = pState; - - /* blockSize samples are read from the state buffer */ - arm_circularRead_q7(py, (int32_t) delaySize, &readIndex, 1, pb, pb, - (int32_t) blockSize, 1, blockSize); - - /* Working pointer for the scratch buffer of state values */ - px = pb; - - /* Working pointer for scratch buffer of output values */ - pScratchOut = pScr2; - - /* Loop over the blockSize. Unroll by a factor of 4. - * Compute 4 MACS at a time. */ - blkCnt = blockSize >> 2; - - while (blkCnt > 0U) - { - /* Perform Multiply-Accumulate */ - in = *pScratchOut + ((q31_t) * px++ * coeff); - *pScratchOut++ = in; - in = *pScratchOut + ((q31_t) * px++ * coeff); - *pScratchOut++ = in; - in = *pScratchOut + ((q31_t) * px++ * coeff); - *pScratchOut++ = in; - in = *pScratchOut + ((q31_t) * px++ * coeff); - *pScratchOut++ = in; - - /* Decrement the loop counter */ - blkCnt--; - } - - /* If the blockSize is not a multiple of 4, - * compute the remaining samples */ - blkCnt = blockSize % 0x4U; - - while (blkCnt > 0U) - { - /* Perform Multiply-Accumulate */ - in = *pScratchOut + ((q31_t) * px++ * coeff); - *pScratchOut++ = in; - - /* Decrement the loop counter */ - blkCnt--; - } - - /* Load the coefficient value and - * increment the coefficient buffer for the next set of state values */ - coeff = *pCoeffs++; - - /* Read Index, from where the state buffer should be read, is calculated. */ - readIndex = ((int32_t) S->stateIndex - - (int32_t) blockSize) - *pTapDelay++; - - /* Wraparound of readIndex */ - if (readIndex < 0) - { - readIndex += (int32_t) delaySize; - } - - /* Decrement the tap loop counter */ - tapCnt--; - } - - /* Compute last tap without the final read of pTapDelay */ - - /* Working pointer for state buffer is updated */ - py = pState; - - /* blockSize samples are read from the state buffer */ - arm_circularRead_q7(py, (int32_t) delaySize, &readIndex, 1, pb, pb, - (int32_t) blockSize, 1, blockSize); - - /* Working pointer for the scratch buffer of state values */ - px = pb; - - /* Working pointer for scratch buffer of output values */ - pScratchOut = pScr2; - - /* Loop over the blockSize. Unroll by a factor of 4. - * Compute 4 MACS at a time. */ - blkCnt = blockSize >> 2; - - while (blkCnt > 0U) - { - /* Perform Multiply-Accumulate */ - in = *pScratchOut + ((q31_t) * px++ * coeff); - *pScratchOut++ = in; - in = *pScratchOut + ((q31_t) * px++ * coeff); - *pScratchOut++ = in; - in = *pScratchOut + ((q31_t) * px++ * coeff); - *pScratchOut++ = in; - in = *pScratchOut + ((q31_t) * px++ * coeff); - *pScratchOut++ = in; - - /* Decrement the loop counter */ - blkCnt--; - } - - /* If the blockSize is not a multiple of 4, - * compute the remaining samples */ - blkCnt = blockSize % 0x4U; - - while (blkCnt > 0U) - { - /* Perform Multiply-Accumulate */ - in = *pScratchOut + ((q31_t) * px++ * coeff); - *pScratchOut++ = in; - - /* Decrement the loop counter */ - blkCnt--; - } - - /* All the output values are in pScratchOut buffer. - Convert them into 1.15 format, saturate and store in the destination buffer. */ - /* Loop over the blockSize. */ - blkCnt = blockSize >> 2; - - while (blkCnt > 0U) - { - in1 = (q7_t) __SSAT(*pScr2++ >> 7, 8); - in2 = (q7_t) __SSAT(*pScr2++ >> 7, 8); - in3 = (q7_t) __SSAT(*pScr2++ >> 7, 8); - in4 = (q7_t) __SSAT(*pScr2++ >> 7, 8); - - *__SIMD32(pOut)++ = __PACKq7(in1, in2, in3, in4); - - /* Decrement the blockSize loop counter */ - blkCnt--; - } - - /* If the blockSize is not a multiple of 4, - remaining samples are processed in the below loop */ - blkCnt = blockSize % 0x4U; - - while (blkCnt > 0U) - { - *pOut++ = (q7_t) __SSAT(*pScr2++ >> 7, 8); - - /* Decrement the blockSize loop counter */ - blkCnt--; - } - -#else - - /* Run the below code for Cortex-M0 */ - - /* BlockSize of Input samples are copied into the state buffer */ - /* StateIndex points to the starting position to write in the state buffer */ - arm_circularWrite_q7(py, (int32_t) delaySize, &S->stateIndex, 1, pSrc, 1, - blockSize); - - /* Loop over the number of taps. */ - tapCnt = numTaps; - - /* Read Index, from where the state buffer should be read, is calculated. */ - readIndex = ((int32_t) S->stateIndex - (int32_t) blockSize) - *pTapDelay++; - - /* Wraparound of readIndex */ - if (readIndex < 0) - { - readIndex += (int32_t) delaySize; - } - - /* Working pointer for state buffer is updated */ - py = pState; - - /* blockSize samples are read from the state buffer */ - arm_circularRead_q7(py, (int32_t) delaySize, &readIndex, 1, pb, pb, - (int32_t) blockSize, 1, blockSize); - - /* Working pointer for the scratch buffer of state values */ - px = pb; - - /* Working pointer for scratch buffer of output values */ - pScratchOut = pScr2; - - /* Loop over the blockSize */ - blkCnt = blockSize; - - while (blkCnt > 0U) - { - /* Perform multiplication and store in the scratch buffer */ - *pScratchOut++ = ((q31_t) * px++ * coeff); - - /* Decrement the loop counter */ - blkCnt--; - } - - /* Load the coefficient value and - * increment the coefficient buffer for the next set of state values */ - coeff = *pCoeffs++; - - /* Read Index, from where the state buffer should be read, is calculated. */ - readIndex = ((int32_t) S->stateIndex - (int32_t) blockSize) - *pTapDelay++; - - /* Wraparound of readIndex */ - if (readIndex < 0) - { - readIndex += (int32_t) delaySize; - } - - /* Loop over the number of taps. */ - tapCnt = (uint32_t) numTaps - 2U; - - while (tapCnt > 0U) - { - /* Working pointer for state buffer is updated */ - py = pState; - - /* blockSize samples are read from the state buffer */ - arm_circularRead_q7(py, (int32_t) delaySize, &readIndex, 1, pb, pb, - (int32_t) blockSize, 1, blockSize); - - /* Working pointer for the scratch buffer of state values */ - px = pb; - - /* Working pointer for scratch buffer of output values */ - pScratchOut = pScr2; - - /* Loop over the blockSize */ - blkCnt = blockSize; - - while (blkCnt > 0U) - { - /* Perform Multiply-Accumulate */ - in = *pScratchOut + ((q31_t) * px++ * coeff); - *pScratchOut++ = in; - - /* Decrement the loop counter */ - blkCnt--; - } - - /* Load the coefficient value and - * increment the coefficient buffer for the next set of state values */ - coeff = *pCoeffs++; - - /* Read Index, from where the state buffer should be read, is calculated. */ - readIndex = - ((int32_t) S->stateIndex - (int32_t) blockSize) - *pTapDelay++; - - /* Wraparound of readIndex */ - if (readIndex < 0) - { - readIndex += (int32_t) delaySize; - } - - /* Decrement the tap loop counter */ - tapCnt--; - } - - /* Compute last tap without the final read of pTapDelay */ - - /* Working pointer for state buffer is updated */ - py = pState; - - /* blockSize samples are read from the state buffer */ - arm_circularRead_q7(py, (int32_t) delaySize, &readIndex, 1, pb, pb, - (int32_t) blockSize, 1, blockSize); - - /* Working pointer for the scratch buffer of state values */ - px = pb; - - /* Working pointer for scratch buffer of output values */ - pScratchOut = pScr2; - - /* Loop over the blockSize */ - blkCnt = blockSize; - - while (blkCnt > 0U) - { - /* Perform Multiply-Accumulate */ - in = *pScratchOut + ((q31_t) * px++ * coeff); - *pScratchOut++ = in; - - /* Decrement the loop counter */ - blkCnt--; - } - - /* All the output values are in pScratchOut buffer. - Convert them into 1.15 format, saturate and store in the destination buffer. */ - /* Loop over the blockSize. */ - blkCnt = blockSize; - - while (blkCnt > 0U) - { - *pOut++ = (q7_t) __SSAT(*pScr2++ >> 7, 8); - - /* Decrement the blockSize loop counter */ - blkCnt--; - } - -#endif /* #if defined (ARM_MATH_DSP) */ - -} - -/** - * @} end of FIR_Sparse group - */ -- cgit