1 files changed, 0 insertions, 109 deletions
diff --git a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FilteringFunctions/arm_biquad_cascade_df1_init_q31.c b/src/modules/mathlib/CMSIS/DSP_Lib/Source/FilteringFunctions/arm_biquad_cascade_df1_init_q31.c
deleted file mode 100644
index dbbb8aa2b..000000000
--- a/src/modules/mathlib/CMSIS/DSP_Lib/Source/FilteringFunctions/arm_biquad_cascade_df1_init_q31.c
+++ /dev/null
@@ -1,109 +0,0 @@
-/* ----------------------------------------------------------------------    
-* Copyright (C) 2010 ARM Limited. All rights reserved.    
-*    
-* $Date:        15. February 2012  
-* $Revision: 	V1.1.0  
-*    
-* Project: 	    CMSIS DSP Library    
-* Title:	    arm_biquad_cascade_df1_init_q31.c    
-*    
-* Description:	Q31 Biquad cascade DirectFormI(DF1) 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 BiquadCascadeDF1    
- * @{    
- */
-
-/**    
- * @details    
- *    
- * @param[in,out] *S           points to an instance of the Q31 Biquad cascade structure.    
- * @param[in]     numStages    number of 2nd order stages in the filter.    
- * @param[in]     *pCoeffs     points to the filter coefficients buffer.    
- * @param[in]     *pState      points to the state buffer.    
- * @param[in]     postShift    Shift to be applied after the accumulator.  Varies according to the coefficients format    
- * @return        none    
- *    
- * <b>Coefficient and State Ordering:</b>    
- *    
- * \par    
- * The coefficients are stored in the array <code>pCoeffs</code> in the following order:    
- * <pre>    
- *     {b10, b11, b12, a11, a12, b20, b21, b22, a21, a22, ...}    
- * </pre>    
- * where <code>b1x</code> and <code>a1x</code> are the coefficients for the first stage,    
- * <code>b2x</code> and <code>a2x</code> are the coefficients for the second stage,    
- * and so on.  The <code>pCoeffs</code> array contains a total of <code>5*numStages</code> values.    
- *    
- * \par    
- * The <code>pState</code> points to state variables array.    
- * Each Biquad stage has 4 state variables <code>x[n-1], x[n-2], y[n-1],</code> and <code>y[n-2]</code>.    
- * The state variables are arranged in the <code>pState</code> array as:    
- * <pre>    
- *     {x[n-1], x[n-2], y[n-1], y[n-2]}    
- * </pre>    
- * The 4 state variables for stage 1 are first, then the 4 state variables for stage 2, and so on.    
- * The state array has a total length of <code>4*numStages</code> values.    
- * The state variables are updated after each block of data is processed; the coefficients are untouched.    
- */
-
-void arm_biquad_cascade_df1_init_q31(
-  arm_biquad_casd_df1_inst_q31 * S,
-  uint8_t numStages,
-  q31_t * pCoeffs,
-  q31_t * pState,
-  int8_t postShift)
-{
-  /* Assign filter stages */
-  S->numStages = numStages;
-
-  /* Assign postShift to be applied to the output */
-  S->postShift = postShift;
-
-  /* Assign coefficient pointer */
-  S->pCoeffs = pCoeffs;
-
-  /* Clear state buffer and size is always 4 * numStages */
-  memset(pState, 0, (4u * (uint32_t) numStages) * sizeof(q31_t));
-
-  /* Assign state pointer */
-  S->pState = pState;
-}
-
-/**    
- * @} end of BiquadCascadeDF1 group    
- */