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author | px4dev <px4@purgatory.org> | 2013-05-20 00:30:43 +0200 |
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committer | px4dev <px4@purgatory.org> | 2013-05-20 00:30:43 +0200 |
commit | 5576e321fa8cd027b15deeb15b7ca05541fde4fe (patch) | |
tree | b8a8dac6fab2ecdb72c90ece845112161a52997a /src/modules/mathlib/CMSIS/DSP_Lib/Source/FilteringFunctions/arm_fir_init_q15.c | |
parent | 3a1c9f14f68054537657851eacb60d930c3d4221 (diff) | |
download | px4-firmware-5576e321fa8cd027b15deeb15b7ca05541fde4fe.tar.gz px4-firmware-5576e321fa8cd027b15deeb15b7ca05541fde4fe.tar.bz2 px4-firmware-5576e321fa8cd027b15deeb15b7ca05541fde4fe.zip |
Use the new prebuilt-library support to wrap the ARM CMSIS DSP library, and update to the version shipped with CMSIS 3.0 r3p2
Diffstat (limited to 'src/modules/mathlib/CMSIS/DSP_Lib/Source/FilteringFunctions/arm_fir_init_q15.c')
-rw-r--r-- | src/modules/mathlib/CMSIS/DSP_Lib/Source/FilteringFunctions/arm_fir_init_q15.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FilteringFunctions/arm_fir_init_q15.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/FilteringFunctions/arm_fir_init_q15.c deleted file mode 100644 index 02bb33623..000000000 --- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FilteringFunctions/arm_fir_init_q15.c +++ /dev/null @@ -1,152 +0,0 @@ -/* ----------------------------------------------------------------------
-* Copyright (C) 2010 ARM Limited. All rights reserved.
-*
-* $Date: 15. February 2012
-* $Revision: V1.1.0
-*
-* Project: CMSIS DSP Library
-* Title: arm_fir_init_q15.c
-*
-* Description: Q15 FIR filter initialization function.
-*
-* 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.
-*
-* Version 0.0.5 2010/04/26
-* incorporated review comments and updated with latest CMSIS layer
-*
-* Version 0.0.3 2010/03/10
-* Initial version
-* ------------------------------------------------------------------- */
-
-#include "arm_math.h"
-
-/**
- * @ingroup groupFilters
- */
-
-/**
- * @addtogroup FIR
- * @{
- */
-
-/**
- * @param[in,out] *S points to an instance of the Q15 FIR filter structure.
- * @param[in] numTaps Number of filter coefficients in the filter. Must be even and greater than or equal to 4.
- * @param[in] *pCoeffs points to the filter coefficients buffer.
- * @param[in] *pState points to the state buffer.
- * @param[in] blockSize is number of samples processed per call.
- * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if
- * <code>numTaps</code> is not greater than or equal to 4 and even.
- *
- * <b>Description:</b>
- * \par
- * <code>pCoeffs</code> points to the array of filter coefficients stored in time reversed order:
- * <pre>
- * {b[numTaps-1], b[numTaps-2], b[N-2], ..., b[1], b[0]}
- * </pre>
- * Note that <code>numTaps</code> must be even and greater than or equal to 4.
- * To implement an odd length filter simply increase <code>numTaps</code> by 1 and set the last coefficient to zero.
- * For example, to implement a filter with <code>numTaps=3</code> and coefficients
- * <pre>
- * {0.3, -0.8, 0.3}
- * </pre>
- * set <code>numTaps=4</code> and use the coefficients:
- * <pre>
- * {0.3, -0.8, 0.3, 0}.
- * </pre>
- * Similarly, to implement a two point filter
- * <pre>
- * {0.3, -0.3}
- * </pre>
- * set <code>numTaps=4</code> and use the coefficients:
- * <pre>
- * {0.3, -0.3, 0, 0}.
- * </pre>
- * \par
- * <code>pState</code> points to the array of state variables.
- * <code>pState</code> is of length <code>numTaps+blockSize</code>, when running on Cortex-M4 and Cortex-M3 and is of length <code>numTaps+blockSize-1</code>, when running on Cortex-M0 where <code>blockSize</code> is the number of input samples processed by each call to <code>arm_fir_q15()</code>.
- */
-
-arm_status arm_fir_init_q15(
- arm_fir_instance_q15 * S,
- uint16_t numTaps,
- q15_t * pCoeffs,
- q15_t * pState,
- uint32_t blockSize)
-{
- arm_status status;
-
-
-#ifndef ARM_MATH_CM0
-
- /* Run the below code for Cortex-M4 and Cortex-M3 */
-
- /* The Number of filter coefficients in the filter must be even and at least 4 */
- if(numTaps & 0x1u)
- {
- status = ARM_MATH_ARGUMENT_ERROR;
- }
- else
- {
- /* Assign filter taps */
- S->numTaps = numTaps;
-
- /* Assign coefficient pointer */
- S->pCoeffs = pCoeffs;
-
- /* Clear the state buffer. The size is always (blockSize + numTaps ) */
- memset(pState, 0, (numTaps + (blockSize)) * sizeof(q15_t));
-
- /* Assign state pointer */
- S->pState = pState;
-
- status = ARM_MATH_SUCCESS;
- }
-
- return (status);
-
-#else
-
- /* Run the below code for Cortex-M0 */
-
- /* Assign filter taps */
- S->numTaps = numTaps;
-
- /* Assign coefficient pointer */
- S->pCoeffs = pCoeffs;
-
- /* Clear the state buffer. The size is always (blockSize + numTaps - 1) */
- memset(pState, 0, (numTaps + (blockSize - 1u)) * sizeof(q15_t));
-
- /* Assign state pointer */
- S->pState = pState;
-
- status = ARM_MATH_SUCCESS;
-
- return (status);
-
-#endif /* #ifndef ARM_MATH_CM0 */
-
-}
-
-/**
- * @} end of FIR group
- */
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