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author | Lorenz Meier <lm@inf.ethz.ch> | 2013-04-28 09:54:11 +0200 |
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committer | Lorenz Meier <lm@inf.ethz.ch> | 2013-04-28 09:54:11 +0200 |
commit | 13fc6703862862f4263d8d5d085b7a16b87190e1 (patch) | |
tree | 47f3a17cb6f38b1aafe22e1cdef085cd73cd3a1d /apps/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_f32.c | |
parent | f57439b90e23de260259dec051d3e2ead2d61c8c (diff) | |
download | px4-firmware-13fc6703862862f4263d8d5d085b7a16b87190e1.tar.gz px4-firmware-13fc6703862862f4263d8d5d085b7a16b87190e1.tar.bz2 px4-firmware-13fc6703862862f4263d8d5d085b7a16b87190e1.zip |
Moved last libs, drivers and headers, cleaned up IO build
Diffstat (limited to 'apps/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_f32.c')
-rw-r--r-- | apps/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_f32.c | 207 |
1 files changed, 0 insertions, 207 deletions
diff --git a/apps/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_f32.c b/apps/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_f32.c deleted file mode 100644 index 7350fd1c9..000000000 --- a/apps/mathlib/CMSIS/DSP_Lib/Source/ComplexMathFunctions/arm_cmplx_mag_squared_f32.c +++ /dev/null @@ -1,207 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_cmplx_mag_squared_f32.c
-*
-* Description: Floating-point complex magnitude squared.
-*
-* Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
-*
-* Version 1.1.0 2012/02/15
-* Updated with more optimizations, bug fixes and minor API changes.
-*
-* Version 1.0.10 2011/7/15
-* Big Endian support added and Merged M0 and M3/M4 Source code.
-*
-* Version 1.0.3 2010/11/29
-* Re-organized the CMSIS folders and updated documentation.
-*
-* Version 1.0.2 2010/11/11
-* Documentation updated.
-*
-* Version 1.0.1 2010/10/05
-* Production release and review comments incorporated.
-*
-* Version 1.0.0 2010/09/20
-* Production release and review comments incorporated.
-* ---------------------------------------------------------------------------- */
-#include "arm_math.h"
-
-/**
- * @ingroup groupCmplxMath
- */
-
-/**
- * @defgroup cmplx_mag_squared Complex Magnitude Squared
- *
- * Computes the magnitude squared of the elements of a complex data vector.
- *
- * The <code>pSrc</code> points to the source data and
- * <code>pDst</code> points to the where the result should be written.
- * <code>numSamples</code> specifies the number of complex samples
- * in the input array and the data is stored in an interleaved fashion
- * (real, imag, real, imag, ...).
- * The input array has a total of <code>2*numSamples</code> values;
- * the output array has a total of <code>numSamples</code> values.
- *
- * The underlying algorithm is used:
- *
- * <pre>
- * for(n=0; n<numSamples; n++) {
- * pDst[n] = pSrc[(2*n)+0]^2 + pSrc[(2*n)+1]^2;
- * }
- * </pre>
- *
- * There are separate functions for floating-point, Q15, and Q31 data types.
- */
-
-/**
- * @addtogroup cmplx_mag_squared
- * @{
- */
-
-
-/**
- * @brief Floating-point complex magnitude squared
- * @param[in] *pSrc points to the complex input vector
- * @param[out] *pDst points to the real output vector
- * @param[in] numSamples number of complex samples in the input vector
- * @return none.
- */
-
-void arm_cmplx_mag_squared_f32(
- float32_t * pSrc,
- float32_t * pDst,
- uint32_t numSamples)
-{
- float32_t real, imag; /* Temporary variables to store real and imaginary values */
- uint32_t blkCnt; /* loop counter */
-
-#ifndef ARM_MATH_CM0
- float32_t real1, real2, real3, real4; /* Temporary variables to hold real values */
- float32_t imag1, imag2, imag3, imag4; /* Temporary variables to hold imaginary values */
- float32_t mul1, mul2, mul3, mul4; /* Temporary variables */
- float32_t mul5, mul6, mul7, mul8; /* Temporary variables */
- float32_t out1, out2, out3, out4; /* Temporary variables to hold output values */
-
- /*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[0] = (A[0] * A[0] + A[1] * A[1]) */
- /* read real input sample from source buffer */
- real1 = pSrc[0];
- /* read imaginary input sample from source buffer */
- imag1 = pSrc[1];
-
- /* calculate power of real value */
- mul1 = real1 * real1;
-
- /* read real input sample from source buffer */
- real2 = pSrc[2];
-
- /* calculate power of imaginary value */
- mul2 = imag1 * imag1;
-
- /* read imaginary input sample from source buffer */
- imag2 = pSrc[3];
-
- /* calculate power of real value */
- mul3 = real2 * real2;
-
- /* read real input sample from source buffer */
- real3 = pSrc[4];
-
- /* calculate power of imaginary value */
- mul4 = imag2 * imag2;
-
- /* read imaginary input sample from source buffer */
- imag3 = pSrc[5];
-
- /* calculate power of real value */
- mul5 = real3 * real3;
- /* calculate power of imaginary value */
- mul6 = imag3 * imag3;
-
- /* read real input sample from source buffer */
- real4 = pSrc[6];
-
- /* accumulate real and imaginary powers */
- out1 = mul1 + mul2;
-
- /* read imaginary input sample from source buffer */
- imag4 = pSrc[7];
-
- /* accumulate real and imaginary powers */
- out2 = mul3 + mul4;
-
- /* calculate power of real value */
- mul7 = real4 * real4;
- /* calculate power of imaginary value */
- mul8 = imag4 * imag4;
-
- /* store output to destination */
- pDst[0] = out1;
-
- /* accumulate real and imaginary powers */
- out3 = mul5 + mul6;
-
- /* store output to destination */
- pDst[1] = out2;
-
- /* accumulate real and imaginary powers */
- out4 = mul7 + mul8;
-
- /* store output to destination */
- pDst[2] = out3;
-
- /* increment destination pointer by 8 to process next samples */
- pSrc += 8u;
-
- /* store output to destination */
- pDst[3] = out4;
-
- /* increment destination pointer by 4 to process next samples */
- pDst += 4u;
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-
- /* If the numSamples is not a multiple of 4, compute any remaining output samples here.
- ** No loop unrolling is used. */
- blkCnt = numSamples % 0x4u;
-
-#else
-
- /* Run the below code for Cortex-M0 */
-
- blkCnt = numSamples;
-
-#endif /* #ifndef ARM_MATH_CM0 */
-
- while(blkCnt > 0u)
- {
- /* C[0] = (A[0] * A[0] + A[1] * A[1]) */
- real = *pSrc++;
- imag = *pSrc++;
-
- /* out = (real * real) + (imag * imag) */
- /* store the result in the destination buffer. */
- *pDst++ = (real * real) + (imag * imag);
-
- /* Decrement the loop counter */
- blkCnt--;
- }
-}
-
-/**
- * @} end of cmplx_mag_squared group
- */
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