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-rw-r--r--fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_fir_lattice_q15.c524
1 files changed, 0 insertions, 524 deletions
diff --git a/fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_fir_lattice_q15.c b/fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_fir_lattice_q15.c
deleted file mode 100644
index fb95ab6..0000000
--- a/fw/hid-dials/Drivers/CMSIS/DSP/Source/FilteringFunctions/arm_fir_lattice_q15.c
+++ /dev/null
@@ -1,524 +0,0 @@
-/* ----------------------------------------------------------------------
- * Project: CMSIS DSP Library
- * Title: arm_fir_lattice_q15.c
- * Description: Q15 FIR lattice 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_Lattice
- * @{
- */
-
-
-/**
- * @brief Processing function for the Q15 FIR lattice filter.
- * @param[in] *S points to an instance of the Q15 FIR lattice structure.
- * @param[in] *pSrc points to the block of input data.
- * @param[out] *pDst points to the block of output data
- * @param[in] blockSize number of samples to process.
- * @return none.
- */
-
-void arm_fir_lattice_q15(
- const arm_fir_lattice_instance_q15 * S,
- q15_t * pSrc,
- q15_t * pDst,
- uint32_t blockSize)
-{
- q15_t *pState; /* State pointer */
- q15_t *pCoeffs = S->pCoeffs; /* Coefficient pointer */
- q15_t *px; /* temporary state pointer */
- q15_t *pk; /* temporary coefficient pointer */
-
-
-#if defined (ARM_MATH_DSP)
-
- /* Run the below code for Cortex-M4 and Cortex-M3 */
-
- q31_t fcurnt1, fnext1, gcurnt1 = 0, gnext1; /* temporary variables for first sample in loop unrolling */
- q31_t fcurnt2, fnext2, gnext2; /* temporary variables for second sample in loop unrolling */
- q31_t fcurnt3, fnext3, gnext3; /* temporary variables for third sample in loop unrolling */
- q31_t fcurnt4, fnext4, gnext4; /* temporary variables for fourth sample in loop unrolling */
- uint32_t numStages = S->numStages; /* Number of stages in the filter */
- uint32_t blkCnt, stageCnt; /* temporary variables for counts */
-
- pState = &S->pState[0];
-
- 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)
- {
-
- /* Read two samples from input buffer */
- /* f0(n) = x(n) */
- fcurnt1 = *pSrc++;
- fcurnt2 = *pSrc++;
-
- /* Initialize coeff pointer */
- pk = (pCoeffs);
-
- /* Initialize state pointer */
- px = pState;
-
- /* Read g0(n-1) from state */
- gcurnt1 = *px;
-
- /* Process first sample for first tap */
- /* f1(n) = f0(n) + K1 * g0(n-1) */
- fnext1 = (q31_t) ((gcurnt1 * (*pk)) >> 15U) + fcurnt1;
- fnext1 = __SSAT(fnext1, 16);
-
- /* g1(n) = f0(n) * K1 + g0(n-1) */
- gnext1 = (q31_t) ((fcurnt1 * (*pk)) >> 15U) + gcurnt1;
- gnext1 = __SSAT(gnext1, 16);
-
- /* Process second sample for first tap */
- /* for sample 2 processing */
- fnext2 = (q31_t) ((fcurnt1 * (*pk)) >> 15U) + fcurnt2;
- fnext2 = __SSAT(fnext2, 16);
-
- gnext2 = (q31_t) ((fcurnt2 * (*pk)) >> 15U) + fcurnt1;
- gnext2 = __SSAT(gnext2, 16);
-
-
- /* Read next two samples from input buffer */
- /* f0(n+2) = x(n+2) */
- fcurnt3 = *pSrc++;
- fcurnt4 = *pSrc++;
-
- /* Copy only last input samples into the state buffer
- which is used for next four samples processing */
- *px++ = (q15_t) fcurnt4;
-
- /* Process third sample for first tap */
- fnext3 = (q31_t) ((fcurnt2 * (*pk)) >> 15U) + fcurnt3;
- fnext3 = __SSAT(fnext3, 16);
- gnext3 = (q31_t) ((fcurnt3 * (*pk)) >> 15U) + fcurnt2;
- gnext3 = __SSAT(gnext3, 16);
-
- /* Process fourth sample for first tap */
- fnext4 = (q31_t) ((fcurnt3 * (*pk)) >> 15U) + fcurnt4;
- fnext4 = __SSAT(fnext4, 16);
- gnext4 = (q31_t) ((fcurnt4 * (*pk++)) >> 15U) + fcurnt3;
- gnext4 = __SSAT(gnext4, 16);
-
- /* Update of f values for next coefficient set processing */
- fcurnt1 = fnext1;
- fcurnt2 = fnext2;
- fcurnt3 = fnext3;
- fcurnt4 = fnext4;
-
-
- /* Loop unrolling. Process 4 taps at a time . */
- stageCnt = (numStages - 1U) >> 2;
-
-
- /* Loop over the number of taps. Unroll by a factor of 4.
- ** Repeat until we've computed numStages-3 coefficients. */
-
- /* Process 2nd, 3rd, 4th and 5th taps ... here */
- while (stageCnt > 0U)
- {
- /* Read g1(n-1), g3(n-1) .... from state */
- gcurnt1 = *px;
-
- /* save g1(n) in state buffer */
- *px++ = (q15_t) gnext4;
-
- /* Process first sample for 2nd, 6th .. tap */
- /* Sample processing for K2, K6.... */
- /* f1(n) = f0(n) + K1 * g0(n-1) */
- fnext1 = (q31_t) ((gcurnt1 * (*pk)) >> 15U) + fcurnt1;
- fnext1 = __SSAT(fnext1, 16);
-
-
- /* Process second sample for 2nd, 6th .. tap */
- /* for sample 2 processing */
- fnext2 = (q31_t) ((gnext1 * (*pk)) >> 15U) + fcurnt2;
- fnext2 = __SSAT(fnext2, 16);
- /* Process third sample for 2nd, 6th .. tap */
- fnext3 = (q31_t) ((gnext2 * (*pk)) >> 15U) + fcurnt3;
- fnext3 = __SSAT(fnext3, 16);
- /* Process fourth sample for 2nd, 6th .. tap */
- /* fnext4 = fcurnt4 + (*pk) * gnext3; */
- fnext4 = (q31_t) ((gnext3 * (*pk)) >> 15U) + fcurnt4;
- fnext4 = __SSAT(fnext4, 16);
-
- /* g1(n) = f0(n) * K1 + g0(n-1) */
- /* Calculation of state values for next stage */
- gnext4 = (q31_t) ((fcurnt4 * (*pk)) >> 15U) + gnext3;
- gnext4 = __SSAT(gnext4, 16);
- gnext3 = (q31_t) ((fcurnt3 * (*pk)) >> 15U) + gnext2;
- gnext3 = __SSAT(gnext3, 16);
-
- gnext2 = (q31_t) ((fcurnt2 * (*pk)) >> 15U) + gnext1;
- gnext2 = __SSAT(gnext2, 16);
-
- gnext1 = (q31_t) ((fcurnt1 * (*pk++)) >> 15U) + gcurnt1;
- gnext1 = __SSAT(gnext1, 16);
-
-
- /* Read g2(n-1), g4(n-1) .... from state */
- gcurnt1 = *px;
-
- /* save g1(n) in state buffer */
- *px++ = (q15_t) gnext4;
-
- /* Sample processing for K3, K7.... */
- /* Process first sample for 3rd, 7th .. tap */
- /* f3(n) = f2(n) + K3 * g2(n-1) */
- fcurnt1 = (q31_t) ((gcurnt1 * (*pk)) >> 15U) + fnext1;
- fcurnt1 = __SSAT(fcurnt1, 16);
-
- /* Process second sample for 3rd, 7th .. tap */
- fcurnt2 = (q31_t) ((gnext1 * (*pk)) >> 15U) + fnext2;
- fcurnt2 = __SSAT(fcurnt2, 16);
-
- /* Process third sample for 3rd, 7th .. tap */
- fcurnt3 = (q31_t) ((gnext2 * (*pk)) >> 15U) + fnext3;
- fcurnt3 = __SSAT(fcurnt3, 16);
-
- /* Process fourth sample for 3rd, 7th .. tap */
- fcurnt4 = (q31_t) ((gnext3 * (*pk)) >> 15U) + fnext4;
- fcurnt4 = __SSAT(fcurnt4, 16);
-
- /* Calculation of state values for next stage */
- /* g3(n) = f2(n) * K3 + g2(n-1) */
- gnext4 = (q31_t) ((fnext4 * (*pk)) >> 15U) + gnext3;
- gnext4 = __SSAT(gnext4, 16);
-
- gnext3 = (q31_t) ((fnext3 * (*pk)) >> 15U) + gnext2;
- gnext3 = __SSAT(gnext3, 16);
-
- gnext2 = (q31_t) ((fnext2 * (*pk)) >> 15U) + gnext1;
- gnext2 = __SSAT(gnext2, 16);
-
- gnext1 = (q31_t) ((fnext1 * (*pk++)) >> 15U) + gcurnt1;
- gnext1 = __SSAT(gnext1, 16);
-
- /* Read g1(n-1), g3(n-1) .... from state */
- gcurnt1 = *px;
-
- /* save g1(n) in state buffer */
- *px++ = (q15_t) gnext4;
-
- /* Sample processing for K4, K8.... */
- /* Process first sample for 4th, 8th .. tap */
- /* f4(n) = f3(n) + K4 * g3(n-1) */
- fnext1 = (q31_t) ((gcurnt1 * (*pk)) >> 15U) + fcurnt1;
- fnext1 = __SSAT(fnext1, 16);
-
- /* Process second sample for 4th, 8th .. tap */
- /* for sample 2 processing */
- fnext2 = (q31_t) ((gnext1 * (*pk)) >> 15U) + fcurnt2;
- fnext2 = __SSAT(fnext2, 16);
-
- /* Process third sample for 4th, 8th .. tap */
- fnext3 = (q31_t) ((gnext2 * (*pk)) >> 15U) + fcurnt3;
- fnext3 = __SSAT(fnext3, 16);
-
- /* Process fourth sample for 4th, 8th .. tap */
- fnext4 = (q31_t) ((gnext3 * (*pk)) >> 15U) + fcurnt4;
- fnext4 = __SSAT(fnext4, 16);
-
- /* g4(n) = f3(n) * K4 + g3(n-1) */
- /* Calculation of state values for next stage */
- gnext4 = (q31_t) ((fcurnt4 * (*pk)) >> 15U) + gnext3;
- gnext4 = __SSAT(gnext4, 16);
-
- gnext3 = (q31_t) ((fcurnt3 * (*pk)) >> 15U) + gnext2;
- gnext3 = __SSAT(gnext3, 16);
-
- gnext2 = (q31_t) ((fcurnt2 * (*pk)) >> 15U) + gnext1;
- gnext2 = __SSAT(gnext2, 16);
- gnext1 = (q31_t) ((fcurnt1 * (*pk++)) >> 15U) + gcurnt1;
- gnext1 = __SSAT(gnext1, 16);
-
-
- /* Read g2(n-1), g4(n-1) .... from state */
- gcurnt1 = *px;
-
- /* save g4(n) in state buffer */
- *px++ = (q15_t) gnext4;
-
- /* Sample processing for K5, K9.... */
- /* Process first sample for 5th, 9th .. tap */
- /* f5(n) = f4(n) + K5 * g4(n-1) */
- fcurnt1 = (q31_t) ((gcurnt1 * (*pk)) >> 15U) + fnext1;
- fcurnt1 = __SSAT(fcurnt1, 16);
-
- /* Process second sample for 5th, 9th .. tap */
- fcurnt2 = (q31_t) ((gnext1 * (*pk)) >> 15U) + fnext2;
- fcurnt2 = __SSAT(fcurnt2, 16);
-
- /* Process third sample for 5th, 9th .. tap */
- fcurnt3 = (q31_t) ((gnext2 * (*pk)) >> 15U) + fnext3;
- fcurnt3 = __SSAT(fcurnt3, 16);
-
- /* Process fourth sample for 5th, 9th .. tap */
- fcurnt4 = (q31_t) ((gnext3 * (*pk)) >> 15U) + fnext4;
- fcurnt4 = __SSAT(fcurnt4, 16);
-
- /* Calculation of state values for next stage */
- /* g5(n) = f4(n) * K5 + g4(n-1) */
- gnext4 = (q31_t) ((fnext4 * (*pk)) >> 15U) + gnext3;
- gnext4 = __SSAT(gnext4, 16);
- gnext3 = (q31_t) ((fnext3 * (*pk)) >> 15U) + gnext2;
- gnext3 = __SSAT(gnext3, 16);
- gnext2 = (q31_t) ((fnext2 * (*pk)) >> 15U) + gnext1;
- gnext2 = __SSAT(gnext2, 16);
- gnext1 = (q31_t) ((fnext1 * (*pk++)) >> 15U) + gcurnt1;
- gnext1 = __SSAT(gnext1, 16);
-
- stageCnt--;
- }
-
- /* If the (filter length -1) is not a multiple of 4, compute the remaining filter taps */
- stageCnt = (numStages - 1U) % 0x4U;
-
- while (stageCnt > 0U)
- {
- gcurnt1 = *px;
-
- /* save g value in state buffer */
- *px++ = (q15_t) gnext4;
-
- /* Process four samples for last three taps here */
- fnext1 = (q31_t) ((gcurnt1 * (*pk)) >> 15U) + fcurnt1;
- fnext1 = __SSAT(fnext1, 16);
- fnext2 = (q31_t) ((gnext1 * (*pk)) >> 15U) + fcurnt2;
- fnext2 = __SSAT(fnext2, 16);
-
- fnext3 = (q31_t) ((gnext2 * (*pk)) >> 15U) + fcurnt3;
- fnext3 = __SSAT(fnext3, 16);
-
- fnext4 = (q31_t) ((gnext3 * (*pk)) >> 15U) + fcurnt4;
- fnext4 = __SSAT(fnext4, 16);
-
- /* g1(n) = f0(n) * K1 + g0(n-1) */
- gnext4 = (q31_t) ((fcurnt4 * (*pk)) >> 15U) + gnext3;
- gnext4 = __SSAT(gnext4, 16);
- gnext3 = (q31_t) ((fcurnt3 * (*pk)) >> 15U) + gnext2;
- gnext3 = __SSAT(gnext3, 16);
- gnext2 = (q31_t) ((fcurnt2 * (*pk)) >> 15U) + gnext1;
- gnext2 = __SSAT(gnext2, 16);
- gnext1 = (q31_t) ((fcurnt1 * (*pk++)) >> 15U) + gcurnt1;
- gnext1 = __SSAT(gnext1, 16);
-
- /* Update of f values for next coefficient set processing */
- fcurnt1 = fnext1;
- fcurnt2 = fnext2;
- fcurnt3 = fnext3;
- fcurnt4 = fnext4;
-
- stageCnt--;
-
- }
-
- /* The results in the 4 accumulators, store in the destination buffer. */
- /* y(n) = fN(n) */
-
-#ifndef ARM_MATH_BIG_ENDIAN
-
- *__SIMD32(pDst)++ = __PKHBT(fcurnt1, fcurnt2, 16);
- *__SIMD32(pDst)++ = __PKHBT(fcurnt3, fcurnt4, 16);
-
-#else
-
- *__SIMD32(pDst)++ = __PKHBT(fcurnt2, fcurnt1, 16);
- *__SIMD32(pDst)++ = __PKHBT(fcurnt4, fcurnt3, 16);
-
-#endif /* #ifndef ARM_MATH_BIG_ENDIAN */
-
- 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)
- {
- /* f0(n) = x(n) */
- fcurnt1 = *pSrc++;
-
- /* Initialize coeff pointer */
- pk = (pCoeffs);
-
- /* Initialize state pointer */
- px = pState;
-
- /* read g2(n) from state buffer */
- gcurnt1 = *px;
-
- /* for sample 1 processing */
- /* f1(n) = f0(n) + K1 * g0(n-1) */
- fnext1 = (((q31_t) gcurnt1 * (*pk)) >> 15U) + fcurnt1;
- fnext1 = __SSAT(fnext1, 16);
-
-
- /* g1(n) = f0(n) * K1 + g0(n-1) */
- gnext1 = (((q31_t) fcurnt1 * (*pk++)) >> 15U) + gcurnt1;
- gnext1 = __SSAT(gnext1, 16);
-
- /* save g1(n) in state buffer */
- *px++ = (q15_t) fcurnt1;
-
- /* f1(n) is saved in fcurnt1
- for next stage processing */
- fcurnt1 = fnext1;
-
- stageCnt = (numStages - 1U);
-
- /* stage loop */
- while (stageCnt > 0U)
- {
- /* read g2(n) from state buffer */
- gcurnt1 = *px;
-
- /* save g1(n) in state buffer */
- *px++ = (q15_t) gnext1;
-
- /* Sample processing for K2, K3.... */
- /* f2(n) = f1(n) + K2 * g1(n-1) */
- fnext1 = (((q31_t) gcurnt1 * (*pk)) >> 15U) + fcurnt1;
- fnext1 = __SSAT(fnext1, 16);
-
- /* g2(n) = f1(n) * K2 + g1(n-1) */
- gnext1 = (((q31_t) fcurnt1 * (*pk++)) >> 15U) + gcurnt1;
- gnext1 = __SSAT(gnext1, 16);
-
-
- /* f1(n) is saved in fcurnt1
- for next stage processing */
- fcurnt1 = fnext1;
-
- stageCnt--;
-
- }
-
- /* y(n) = fN(n) */
- *pDst++ = __SSAT(fcurnt1, 16);
-
-
- blkCnt--;
-
- }
-
-#else
-
- /* Run the below code for Cortex-M0 */
-
- q31_t fcurnt, fnext, gcurnt, gnext; /* temporary variables */
- uint32_t numStages = S->numStages; /* Length of the filter */
- uint32_t blkCnt, stageCnt; /* temporary variables for counts */
-
- pState = &S->pState[0];
-
- blkCnt = blockSize;
-
- while (blkCnt > 0U)
- {
- /* f0(n) = x(n) */
- fcurnt = *pSrc++;
-
- /* Initialize coeff pointer */
- pk = (pCoeffs);
-
- /* Initialize state pointer */
- px = pState;
-
- /* read g0(n-1) from state buffer */
- gcurnt = *px;
-
- /* for sample 1 processing */
- /* f1(n) = f0(n) + K1 * g0(n-1) */
- fnext = ((gcurnt * (*pk)) >> 15U) + fcurnt;
- fnext = __SSAT(fnext, 16);
-
-
- /* g1(n) = f0(n) * K1 + g0(n-1) */
- gnext = ((fcurnt * (*pk++)) >> 15U) + gcurnt;
- gnext = __SSAT(gnext, 16);
-
- /* save f0(n) in state buffer */
- *px++ = (q15_t) fcurnt;
-
- /* f1(n) is saved in fcurnt
- for next stage processing */
- fcurnt = fnext;
-
- stageCnt = (numStages - 1U);
-
- /* stage loop */
- while (stageCnt > 0U)
- {
- /* read g1(n-1) from state buffer */
- gcurnt = *px;
-
- /* save g0(n-1) in state buffer */
- *px++ = (q15_t) gnext;
-
- /* Sample processing for K2, K3.... */
- /* f2(n) = f1(n) + K2 * g1(n-1) */
- fnext = ((gcurnt * (*pk)) >> 15U) + fcurnt;
- fnext = __SSAT(fnext, 16);
-
- /* g2(n) = f1(n) * K2 + g1(n-1) */
- gnext = ((fcurnt * (*pk++)) >> 15U) + gcurnt;
- gnext = __SSAT(gnext, 16);
-
-
- /* f1(n) is saved in fcurnt
- for next stage processing */
- fcurnt = fnext;
-
- stageCnt--;
-
- }
-
- /* y(n) = fN(n) */
- *pDst++ = __SSAT(fcurnt, 16);
-
-
- blkCnt--;
-
- }
-
-#endif /* #if defined (ARM_MATH_DSP) */
-
-}
-
-/**
- * @} end of FIR_Lattice group
- */
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