From 2628932a40d769d8d0180ba6fed1e7b9b2718982 Mon Sep 17 00:00:00 2001 From: jaseg Date: Sun, 3 May 2020 19:53:02 +0200 Subject: minkbd: repo restructure --- .../RefLibs/src/FilteringFunctions/fir_lattice.c | 241 --------------------- 1 file changed, 241 deletions(-) delete mode 100644 Blink/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/FilteringFunctions/fir_lattice.c (limited to 'Blink/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/FilteringFunctions/fir_lattice.c') diff --git a/Blink/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/FilteringFunctions/fir_lattice.c b/Blink/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/FilteringFunctions/fir_lattice.c deleted file mode 100644 index 6466106..0000000 --- a/Blink/Drivers/CMSIS/DSP/DSP_Lib_TestSuite/RefLibs/src/FilteringFunctions/fir_lattice.c +++ /dev/null @@ -1,241 +0,0 @@ -#include "ref.h" - -void ref_fir_lattice_f32( - const arm_fir_lattice_instance_f32 * S, - float32_t * pSrc, - float32_t * pDst, - uint32_t blockSize) -{ - float32_t *pState; /* State pointer */ - float32_t *pCoeffs = S->pCoeffs; /* Coefficient pointer */ - float32_t *px; /* temporary state pointer */ - float32_t *pk; /* temporary coefficient pointer */ - float32_t fcurr, fnext, gcurr, 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) */ - fcurr = *pSrc++; - - /* Initialize coeff pointer */ - pk = pCoeffs; - - /* Initialize state pointer */ - px = pState; - - /* read g0(n-1) from state buffer */ - gcurr = *px; - - /* for sample 1 processing */ - /* f1(n) = f0(n) + K1 * g0(n-1) */ - fnext = fcurr + ((*pk) * gcurr); - /* g1(n) = f0(n) * K1 + g0(n-1) */ - gnext = (fcurr * (*pk++)) + gcurr; - - /* save f0(n) in state buffer */ - *px++ = fcurr; - - /* f1(n) is saved in fcurr - for next stage processing */ - fcurr = fnext; - - stageCnt = (numStages - 1U); - - /* stage loop */ - while (stageCnt > 0U) - { - /* read g2(n) from state buffer */ - gcurr = *px; - - /* save g1(n) in state buffer */ - *px++ = gnext; - - /* Sample processing for K2, K3.... */ - /* f2(n) = f1(n) + K2 * g1(n-1) */ - fnext = fcurr + ((*pk) * gcurr); - /* g2(n) = f1(n) * K2 + g1(n-1) */ - gnext = (fcurr * (*pk++)) + gcurr; - - /* f1(n) is saved in fcurr1 - for next stage processing */ - fcurr = fnext; - - stageCnt--; - } - - /* y(n) = fN(n) */ - *pDst++ = fcurr; - - blkCnt--; - } -} - -void ref_fir_lattice_q31( - const arm_fir_lattice_instance_q31 * S, - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize) -{ - q31_t *pState; /* State pointer */ - q31_t *pCoeffs = S->pCoeffs; /* Coefficient pointer */ - q31_t *px; /* temporary state pointer */ - q31_t *pk; /* temporary coefficient pointer */ - q31_t fcurr, fnext, gcurr, 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) */ - fcurr = *pSrc++; - - /* Initialize coeff pointer */ - pk = pCoeffs; - - /* Initialize state pointer */ - px = pState; - - /* read g0(n-1) from state buffer */ - gcurr = *px; - - /* for sample 1 processing */ - /* f1(n) = f0(n) + K1 * g0(n-1) */ - fnext = (q31_t) (((q63_t) gcurr * (*pk)) >> 31) + fcurr; - /* g1(n) = f0(n) * K1 + g0(n-1) */ - gnext = (q31_t) (((q63_t) fcurr * (*pk++)) >> 31) + gcurr; - /* save g1(n) in state buffer */ - *px++ = fcurr; - - /* f1(n) is saved in fcurr1 - for next stage processing */ - fcurr = fnext; - - stageCnt = (numStages - 1U); - - /* stage loop */ - while (stageCnt > 0U) - { - /* read g2(n) from state buffer */ - gcurr = *px; - - /* save g1(n) in state buffer */ - *px++ = gnext; - - /* Sample processing for K2, K3.... */ - /* f2(n) = f1(n) + K2 * g1(n-1) */ - fnext = (q31_t) (((q63_t) gcurr * (*pk)) >> 31) + fcurr; - /* g2(n) = f1(n) * K2 + g1(n-1) */ - gnext = (q31_t) (((q63_t) fcurr * (*pk++)) >> 31) + gcurr; - - /* f1(n) is saved in fcurr1 - for next stage processing */ - fcurr = fnext; - - stageCnt--; - - } - - /* y(n) = fN(n) */ - *pDst++ = fcurr; - - blkCnt--; - - } -} - -void ref_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 */ - 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 = ref_sat_q15(fnext); - - - /* g1(n) = f0(n) * K1 + g0(n-1) */ - gnext = ((fcurnt * (*pk++)) >> 15U) + gcurnt; - gnext = ref_sat_q15(gnext); - - /* 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 = ref_sat_q15(fnext); - - /* g2(n) = f1(n) * K2 + g1(n-1) */ - gnext = ((fcurnt * (*pk++)) >> 15U) + gcurnt; - gnext = ref_sat_q15(gnext); - - - /* f1(n) is saved in fcurnt - for next stage processing */ - fcurnt = fnext; - - stageCnt--; - - } - - /* y(n) = fN(n) */ - *pDst++ = ref_sat_q15(fcurnt); - - - blkCnt--; - - } -} -- cgit