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-rw-r--r--fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_conv_opt_q7.c423
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diff --git a/fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_conv_opt_q7.c b/fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_conv_opt_q7.c
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index 1dc2e49..0000000
--- a/fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_conv_opt_q7.c
+++ /dev/null
@@ -1,423 +0,0 @@
-/* ----------------------------------------------------------------------
- * Project: CMSIS DSP Library
- * Title: arm_conv_opt_q7.c
- * Description: Convolution of Q7 sequences
- *
- * $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 Conv
- * @{
- */
-
-/**
- * @brief Convolution of Q7 sequences.
- * @param[in] *pSrcA points to the first input sequence.
- * @param[in] srcALen length of the first input sequence.
- * @param[in] *pSrcB points to the second input sequence.
- * @param[in] srcBLen length of the second input sequence.
- * @param[out] *pDst points to the location where the output result is written. Length srcALen+srcBLen-1.
- * @param[in] *pScratch1 points to scratch buffer(of type q15_t) of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
- * @param[in] *pScratch2 points to scratch buffer (of type q15_t) of size min(srcALen, srcBLen).
- * @return none.
- *
- * \par Restrictions
- * If the silicon does not support unaligned memory access enable the macro UNALIGNED_SUPPORT_DISABLE
- * In this case input, output, scratch1 and scratch2 buffers should be aligned by 32-bit
- *
- * @details
- * <b>Scaling and Overflow Behavior:</b>
- *
- * \par
- * The function is implemented using a 32-bit internal accumulator.
- * Both the inputs 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.
- * This approach provides 17 guard bits and there is no risk of overflow as long as <code>max(srcALen, srcBLen)<131072</code>.
- * The 18.14 result is then truncated to 18.7 format by discarding the low 7 bits and then saturated to 1.7 format.
- *
- */
-
-void arm_conv_opt_q7(
- q7_t * pSrcA,
- uint32_t srcALen,
- q7_t * pSrcB,
- uint32_t srcBLen,
- q7_t * pDst,
- q15_t * pScratch1,
- q15_t * pScratch2)
-{
-
- q15_t *pScr2, *pScr1; /* Intermediate pointers for scratch pointers */
- q15_t x4; /* Temporary input variable */
- q7_t *pIn1, *pIn2; /* inputA and inputB pointer */
- uint32_t j, k, blkCnt, tapCnt; /* loop counter */
- q7_t *px; /* Temporary input1 pointer */
- q15_t *py; /* Temporary input2 pointer */
- q31_t acc0, acc1, acc2, acc3; /* Accumulator */
- q31_t x1, x2, x3, y1; /* Temporary input variables */
- q7_t *pOut = pDst; /* output pointer */
- q7_t out0, out1, out2, out3; /* temporary variables */
-
- /* The algorithm implementation is based on the lengths of the inputs. */
- /* srcB is always made to slide across srcA. */
- /* So srcBLen is always considered as shorter or equal to srcALen */
- if (srcALen >= srcBLen)
- {
- /* Initialization of inputA pointer */
- pIn1 = pSrcA;
-
- /* Initialization of inputB pointer */
- pIn2 = pSrcB;
- }
- else
- {
- /* Initialization of inputA pointer */
- pIn1 = pSrcB;
-
- /* Initialization of inputB pointer */
- pIn2 = pSrcA;
-
- /* srcBLen is always considered as shorter or equal to srcALen */
- j = srcBLen;
- srcBLen = srcALen;
- srcALen = j;
- }
-
- /* pointer to take end of scratch2 buffer */
- pScr2 = pScratch2;
-
- /* points to smaller length sequence */
- px = pIn2 + srcBLen - 1;
-
- /* Apply loop unrolling and do 4 Copies simultaneously. */
- k = srcBLen >> 2U;
-
- /* First part of the processing with loop unrolling copies 4 data points at a time.
- ** a second loop below copies for the remaining 1 to 3 samples. */
- while (k > 0U)
- {
- /* copy second buffer in reversal manner */
- x4 = (q15_t) * px--;
- *pScr2++ = x4;
- x4 = (q15_t) * px--;
- *pScr2++ = x4;
- x4 = (q15_t) * px--;
- *pScr2++ = x4;
- x4 = (q15_t) * px--;
- *pScr2++ = x4;
-
- /* Decrement the loop counter */
- k--;
- }
-
- /* If the count is not a multiple of 4, copy remaining samples here.
- ** No loop unrolling is used. */
- k = srcBLen % 0x4U;
-
- while (k > 0U)
- {
- /* copy second buffer in reversal manner for remaining samples */
- x4 = (q15_t) * px--;
- *pScr2++ = x4;
-
- /* Decrement the loop counter */
- k--;
- }
-
- /* Initialze temporary scratch pointer */
- pScr1 = pScratch1;
-
- /* Fill (srcBLen - 1U) zeros in scratch buffer */
- arm_fill_q15(0, pScr1, (srcBLen - 1U));
-
- /* Update temporary scratch pointer */
- pScr1 += (srcBLen - 1U);
-
- /* Copy (srcALen) samples in scratch buffer */
- /* Apply loop unrolling and do 4 Copies simultaneously. */
- k = srcALen >> 2U;
-
- /* First part of the processing with loop unrolling copies 4 data points at a time.
- ** a second loop below copies for the remaining 1 to 3 samples. */
- while (k > 0U)
- {
- /* copy second buffer in reversal manner */
- x4 = (q15_t) * pIn1++;
- *pScr1++ = x4;
- x4 = (q15_t) * pIn1++;
- *pScr1++ = x4;
- x4 = (q15_t) * pIn1++;
- *pScr1++ = x4;
- x4 = (q15_t) * pIn1++;
- *pScr1++ = x4;
-
- /* Decrement the loop counter */
- k--;
- }
-
- /* If the count is not a multiple of 4, copy remaining samples here.
- ** No loop unrolling is used. */
- k = srcALen % 0x4U;
-
- while (k > 0U)
- {
- /* copy second buffer in reversal manner for remaining samples */
- x4 = (q15_t) * pIn1++;
- *pScr1++ = x4;
-
- /* Decrement the loop counter */
- k--;
- }
-
-#ifndef UNALIGNED_SUPPORT_DISABLE
-
- /* Fill (srcBLen - 1U) zeros at end of scratch buffer */
- arm_fill_q15(0, pScr1, (srcBLen - 1U));
-
- /* Update pointer */
- pScr1 += (srcBLen - 1U);
-
-#else
-
- /* Apply loop unrolling and do 4 Copies simultaneously. */
- k = (srcBLen - 1U) >> 2U;
-
- /* First part of the processing with loop unrolling copies 4 data points at a time.
- ** a second loop below copies for the remaining 1 to 3 samples. */
- while (k > 0U)
- {
- /* copy second buffer in reversal manner */
- *pScr1++ = 0;
- *pScr1++ = 0;
- *pScr1++ = 0;
- *pScr1++ = 0;
-
- /* Decrement the loop counter */
- k--;
- }
-
- /* If the count is not a multiple of 4, copy remaining samples here.
- ** No loop unrolling is used. */
- k = (srcBLen - 1U) % 0x4U;
-
- while (k > 0U)
- {
- /* copy second buffer in reversal manner for remaining samples */
- *pScr1++ = 0;
-
- /* Decrement the loop counter */
- k--;
- }
-
-#endif
-
- /* Temporary pointer for scratch2 */
- py = pScratch2;
-
- /* Initialization of pIn2 pointer */
- pIn2 = (q7_t *) py;
-
- pScr2 = py;
-
- /* Actual convolution process starts here */
- blkCnt = (srcALen + srcBLen - 1U) >> 2;
-
- while (blkCnt > 0)
- {
- /* Initialze temporary scratch pointer as scratch1 */
- pScr1 = pScratch1;
-
- /* Clear Accumlators */
- acc0 = 0;
- acc1 = 0;
- acc2 = 0;
- acc3 = 0;
-
- /* Read two samples from scratch1 buffer */
- x1 = *__SIMD32(pScr1)++;
-
- /* Read next two samples from scratch1 buffer */
- x2 = *__SIMD32(pScr1)++;
-
- tapCnt = (srcBLen) >> 2U;
-
- while (tapCnt > 0U)
- {
-
- /* Read four samples from smaller buffer */
- y1 = _SIMD32_OFFSET(pScr2);
-
- /* multiply and accumlate */
- acc0 = __SMLAD(x1, y1, acc0);
- acc2 = __SMLAD(x2, y1, acc2);
-
- /* pack input data */
-#ifndef ARM_MATH_BIG_ENDIAN
- x3 = __PKHBT(x2, x1, 0);
-#else
- x3 = __PKHBT(x1, x2, 0);
-#endif
-
- /* multiply and accumlate */
- acc1 = __SMLADX(x3, y1, acc1);
-
- /* Read next two samples from scratch1 buffer */
- x1 = *__SIMD32(pScr1)++;
-
- /* pack input data */
-#ifndef ARM_MATH_BIG_ENDIAN
- x3 = __PKHBT(x1, x2, 0);
-#else
- x3 = __PKHBT(x2, x1, 0);
-#endif
-
- acc3 = __SMLADX(x3, y1, acc3);
-
- /* Read four samples from smaller buffer */
- y1 = _SIMD32_OFFSET(pScr2 + 2U);
-
- acc0 = __SMLAD(x2, y1, acc0);
-
- acc2 = __SMLAD(x1, y1, acc2);
-
- acc1 = __SMLADX(x3, y1, acc1);
-
- x2 = *__SIMD32(pScr1)++;
-
-#ifndef ARM_MATH_BIG_ENDIAN
- x3 = __PKHBT(x2, x1, 0);
-#else
- x3 = __PKHBT(x1, x2, 0);
-#endif
-
- acc3 = __SMLADX(x3, y1, acc3);
-
- pScr2 += 4U;
-
-
- /* Decrement the loop counter */
- tapCnt--;
- }
-
-
-
- /* Update scratch pointer for remaining samples of smaller length sequence */
- pScr1 -= 4U;
-
-
- /* apply same above for remaining samples of smaller length sequence */
- tapCnt = (srcBLen) & 3U;
-
- while (tapCnt > 0U)
- {
-
- /* accumlate the results */
- acc0 += (*pScr1++ * *pScr2);
- acc1 += (*pScr1++ * *pScr2);
- acc2 += (*pScr1++ * *pScr2);
- acc3 += (*pScr1++ * *pScr2++);
-
- pScr1 -= 3U;
-
- /* Decrement the loop counter */
- tapCnt--;
- }
-
- blkCnt--;
-
- /* Store the result in the accumulator in the destination buffer. */
- out0 = (q7_t) (__SSAT(acc0 >> 7U, 8));
- out1 = (q7_t) (__SSAT(acc1 >> 7U, 8));
- out2 = (q7_t) (__SSAT(acc2 >> 7U, 8));
- out3 = (q7_t) (__SSAT(acc3 >> 7U, 8));
-
- *__SIMD32(pOut)++ = __PACKq7(out0, out1, out2, out3);
-
- /* Initialization of inputB pointer */
- pScr2 = py;
-
- pScratch1 += 4U;
-
- }
-
-
- blkCnt = (srcALen + srcBLen - 1U) & 0x3;
-
- /* Calculate convolution for remaining samples of Bigger length sequence */
- while (blkCnt > 0)
- {
- /* Initialze temporary scratch pointer as scratch1 */
- pScr1 = pScratch1;
-
- /* Clear Accumlators */
- acc0 = 0;
-
- tapCnt = (srcBLen) >> 1U;
-
- while (tapCnt > 0U)
- {
- acc0 += (*pScr1++ * *pScr2++);
- acc0 += (*pScr1++ * *pScr2++);
-
- /* Decrement the loop counter */
- tapCnt--;
- }
-
- tapCnt = (srcBLen) & 1U;
-
- /* apply same above for remaining samples of smaller length sequence */
- while (tapCnt > 0U)
- {
-
- /* accumlate the results */
- acc0 += (*pScr1++ * *pScr2++);
-
- /* Decrement the loop counter */
- tapCnt--;
- }
-
- blkCnt--;
-
- /* Store the result in the accumulator in the destination buffer. */
- *pOut++ = (q7_t) (__SSAT(acc0 >> 7U, 8));
-
- /* Initialization of inputB pointer */
- pScr2 = py;
-
- pScratch1 += 1U;
-
- }
-
-}
-
-
-/**
- * @} end of Conv group
- */
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