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diff --git a/arm_math.h b/arm_math.h deleted file mode 100644 index d33f8a9..0000000 --- a/arm_math.h +++ /dev/null @@ -1,7154 +0,0 @@ -/* ---------------------------------------------------------------------- -* Copyright (C) 2010-2015 ARM Limited. All rights reserved. -* -* $Date: 20. October 2015 -* $Revision: V1.4.5 b -* -* Project: CMSIS DSP Library -* Title: arm_math.h -* -* Description: Public header file for CMSIS DSP Library -* -* Target Processor: Cortex-M7/Cortex-M4/Cortex-M3/Cortex-M0 -* -* Redistribution and use in source and binary forms, with or without -* modification, are permitted provided that the following conditions -* are met: -* - Redistributions of source code must retain the above copyright -* notice, this list of conditions and the following disclaimer. -* - Redistributions in binary form must reproduce the above copyright -* notice, this list of conditions and the following disclaimer in -* the documentation and/or other materials provided with the -* distribution. -* - Neither the name of ARM LIMITED nor the names of its contributors -* may be used to endorse or promote products derived from this -* software without specific prior written permission. -* -* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS -* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT -* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS -* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE -* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, -* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, -* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; -* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER -* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT -* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN -* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -* POSSIBILITY OF SUCH DAMAGE. - * -------------------------------------------------------------------- */ - -/** - \mainpage CMSIS DSP Software Library - * - * Introduction - * ------------ - * - * This user manual describes the CMSIS DSP software library, - * a suite of common signal processing functions for use on Cortex-M processor based devices. - * - * The library is divided into a number of functions each covering a specific category: - * - Basic math functions - * - Fast math functions - * - Complex math functions - * - Filters - * - Matrix functions - * - Transforms - * - Motor control functions - * - Statistical functions - * - Support functions - * - Interpolation functions - * - * The library has separate functions for operating on 8-bit integers, 16-bit integers, - * 32-bit integer and 32-bit floating-point values. - * - * Using the Library - * ------------ - * - * The library installer contains prebuilt versions of the libraries in the <code>Lib</code> folder. - * - arm_cortexM7lfdp_math.lib (Little endian and Double Precision Floating Point Unit on Cortex-M7) - * - arm_cortexM7bfdp_math.lib (Big endian and Double Precision Floating Point Unit on Cortex-M7) - * - arm_cortexM7lfsp_math.lib (Little endian and Single Precision Floating Point Unit on Cortex-M7) - * - arm_cortexM7bfsp_math.lib (Big endian and Single Precision Floating Point Unit on Cortex-M7) - * - arm_cortexM7l_math.lib (Little endian on Cortex-M7) - * - arm_cortexM7b_math.lib (Big endian on Cortex-M7) - * - arm_cortexM4lf_math.lib (Little endian and Floating Point Unit on Cortex-M4) - * - arm_cortexM4bf_math.lib (Big endian and Floating Point Unit on Cortex-M4) - * - arm_cortexM4l_math.lib (Little endian on Cortex-M4) - * - arm_cortexM4b_math.lib (Big endian on Cortex-M4) - * - arm_cortexM3l_math.lib (Little endian on Cortex-M3) - * - arm_cortexM3b_math.lib (Big endian on Cortex-M3) - * - arm_cortexM0l_math.lib (Little endian on Cortex-M0 / CortexM0+) - * - arm_cortexM0b_math.lib (Big endian on Cortex-M0 / CortexM0+) - * - * The library functions are declared in the public file <code>arm_math.h</code> which is placed in the <code>Include</code> folder. - * Simply include this file and link the appropriate library in the application and begin calling the library functions. The Library supports single - * public header file <code> arm_math.h</code> for Cortex-M7/M4/M3/M0/M0+ with little endian and big endian. Same header file will be used for floating point unit(FPU) variants. - * Define the appropriate pre processor MACRO ARM_MATH_CM7 or ARM_MATH_CM4 or ARM_MATH_CM3 or - * ARM_MATH_CM0 or ARM_MATH_CM0PLUS depending on the target processor in the application. - * - * Examples - * -------- - * - * The library ships with a number of examples which demonstrate how to use the library functions. - * - * Toolchain Support - * ------------ - * - * The library has been developed and tested with MDK-ARM version 5.14.0.0 - * The library is being tested in GCC and IAR toolchains and updates on this activity will be made available shortly. - * - * Building the Library - * ------------ - * - * The library installer contains a project file to re build libraries on MDK-ARM Tool chain in the <code>CMSIS\\DSP_Lib\\Source\\ARM</code> folder. - * - arm_cortexM_math.uvprojx - * - * - * The libraries can be built by opening the arm_cortexM_math.uvprojx project in MDK-ARM, selecting a specific target, and defining the optional pre processor MACROs detailed above. - * - * Pre-processor Macros - * ------------ - * - * Each library project have differant pre-processor macros. - * - * - UNALIGNED_SUPPORT_DISABLE: - * - * Define macro UNALIGNED_SUPPORT_DISABLE, If the silicon does not support unaligned memory access - * - * - ARM_MATH_BIG_ENDIAN: - * - * Define macro ARM_MATH_BIG_ENDIAN to build the library for big endian targets. By default library builds for little endian targets. - * - * - ARM_MATH_MATRIX_CHECK: - * - * Define macro ARM_MATH_MATRIX_CHECK for checking on the input and output sizes of matrices - * - * - ARM_MATH_ROUNDING: - * - * Define macro ARM_MATH_ROUNDING for rounding on support functions - * - * - ARM_MATH_CMx: - * - * Define macro ARM_MATH_CM4 for building the library on Cortex-M4 target, ARM_MATH_CM3 for building library on Cortex-M3 target - * and ARM_MATH_CM0 for building library on Cortex-M0 target, ARM_MATH_CM0PLUS for building library on Cortex-M0+ target, and - * ARM_MATH_CM7 for building the library on cortex-M7. - * - * - __FPU_PRESENT: - * - * Initialize macro __FPU_PRESENT = 1 when building on FPU supported Targets. Enable this macro for M4bf and M4lf libraries - * - * <hr> - * CMSIS-DSP in ARM::CMSIS Pack - * ----------------------------- - * - * The following files relevant to CMSIS-DSP are present in the <b>ARM::CMSIS</b> Pack directories: - * |File/Folder |Content | - * |------------------------------|------------------------------------------------------------------------| - * |\b CMSIS\\Documentation\\DSP | This documentation | - * |\b CMSIS\\DSP_Lib | Software license agreement (license.txt) | - * |\b CMSIS\\DSP_Lib\\Examples | Example projects demonstrating the usage of the library functions | - * |\b CMSIS\\DSP_Lib\\Source | Source files for rebuilding the library | - * - * <hr> - * Revision History of CMSIS-DSP - * ------------ - * Please refer to \ref ChangeLog_pg. - * - * Copyright Notice - * ------------ - * - * Copyright (C) 2010-2015 ARM Limited. All rights reserved. - */ - - -/** - * @defgroup groupMath Basic Math Functions - */ - -/** - * @defgroup groupFastMath Fast Math Functions - * This set of functions provides a fast approximation to sine, cosine, and square root. - * As compared to most of the other functions in the CMSIS math library, the fast math functions - * operate on individual values and not arrays. - * There are separate functions for Q15, Q31, and floating-point data. - * - */ - -/** - * @defgroup groupCmplxMath Complex Math Functions - * This set of functions operates on complex data vectors. - * The data in the complex arrays is stored in an interleaved fashion - * (real, imag, real, imag, ...). - * In the API functions, the number of samples in a complex array refers - * to the number of complex values; the array contains twice this number of - * real values. - */ - -/** - * @defgroup groupFilters Filtering Functions - */ - -/** - * @defgroup groupMatrix Matrix Functions - * - * This set of functions provides basic matrix math operations. - * The functions operate on matrix data structures. For example, - * the type - * definition for the floating-point matrix structure is shown - * below: - * <pre> - * typedef struct - * { - * uint16_t numRows; // number of rows of the matrix. - * uint16_t numCols; // number of columns of the matrix. - * float32_t *pData; // points to the data of the matrix. - * } arm_matrix_instance_f32; - * </pre> - * There are similar definitions for Q15 and Q31 data types. - * - * The structure specifies the size of the matrix and then points to - * an array of data. The array is of size <code>numRows X numCols</code> - * and the values are arranged in row order. That is, the - * matrix element (i, j) is stored at: - * <pre> - * pData[i*numCols + j] - * </pre> - * - * \par Init Functions - * There is an associated initialization function for each type of matrix - * data structure. - * The initialization function sets the values of the internal structure fields. - * Refer to the function <code>arm_mat_init_f32()</code>, <code>arm_mat_init_q31()</code> - * and <code>arm_mat_init_q15()</code> for floating-point, Q31 and Q15 types, respectively. - * - * \par - * Use of the initialization function is optional. However, if initialization function is used - * then the instance structure cannot be placed into a const data section. - * To place the instance structure in a const data - * section, manually initialize the data structure. For example: - * <pre> - * <code>arm_matrix_instance_f32 S = {nRows, nColumns, pData};</code> - * <code>arm_matrix_instance_q31 S = {nRows, nColumns, pData};</code> - * <code>arm_matrix_instance_q15 S = {nRows, nColumns, pData};</code> - * </pre> - * where <code>nRows</code> specifies the number of rows, <code>nColumns</code> - * specifies the number of columns, and <code>pData</code> points to the - * data array. - * - * \par Size Checking - * By default all of the matrix functions perform size checking on the input and - * output matrices. For example, the matrix addition function verifies that the - * two input matrices and the output matrix all have the same number of rows and - * columns. If the size check fails the functions return: - * <pre> - * ARM_MATH_SIZE_MISMATCH - * </pre> - * Otherwise the functions return - * <pre> - * ARM_MATH_SUCCESS - * </pre> - * There is some overhead associated with this matrix size checking. - * The matrix size checking is enabled via the \#define - * <pre> - * ARM_MATH_MATRIX_CHECK - * </pre> - * within the library project settings. By default this macro is defined - * and size checking is enabled. By changing the project settings and - * undefining this macro size checking is eliminated and the functions - * run a bit faster. With size checking disabled the functions always - * return <code>ARM_MATH_SUCCESS</code>. - */ - -/** - * @defgroup groupTransforms Transform Functions - */ - -/** - * @defgroup groupController Controller Functions - */ - -/** - * @defgroup groupStats Statistics Functions - */ -/** - * @defgroup groupSupport Support Functions - */ - -/** - * @defgroup groupInterpolation Interpolation Functions - * These functions perform 1- and 2-dimensional interpolation of data. - * Linear interpolation is used for 1-dimensional data and - * bilinear interpolation is used for 2-dimensional data. - */ - -/** - * @defgroup groupExamples Examples - */ -#ifndef _ARM_MATH_H -#define _ARM_MATH_H - -/* ignore some GCC warnings */ -#if defined ( __GNUC__ ) -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wsign-conversion" -#pragma GCC diagnostic ignored "-Wconversion" -#pragma GCC diagnostic ignored "-Wunused-parameter" -#endif - -#define __CMSIS_GENERIC /* disable NVIC and Systick functions */ - -#if defined(ARM_MATH_CM7) - #include "core_cm7.h" -#elif defined (ARM_MATH_CM4) - #include "core_cm4.h" -#elif defined (ARM_MATH_CM3) - #include "core_cm3.h" -#elif defined (ARM_MATH_CM0) - #include "core_cm0.h" - #define ARM_MATH_CM0_FAMILY -#elif defined (ARM_MATH_CM0PLUS) - #include "core_cm0plus.h" - #define ARM_MATH_CM0_FAMILY -#else - #error "Define according the used Cortex core ARM_MATH_CM7, ARM_MATH_CM4, ARM_MATH_CM3, ARM_MATH_CM0PLUS or ARM_MATH_CM0" -#endif - -#undef __CMSIS_GENERIC /* enable NVIC and Systick functions */ -#include "string.h" -#include "math.h" -#ifdef __cplusplus -extern "C" -{ -#endif - - - /** - * @brief Macros required for reciprocal calculation in Normalized LMS - */ - -#define DELTA_Q31 (0x100) -#define DELTA_Q15 0x5 -#define INDEX_MASK 0x0000003F -#ifndef PI -#define PI 3.14159265358979f -#endif - - /** - * @brief Macros required for SINE and COSINE Fast math approximations - */ - -#define FAST_MATH_TABLE_SIZE 512 -#define FAST_MATH_Q31_SHIFT (32 - 10) -#define FAST_MATH_Q15_SHIFT (16 - 10) -#define CONTROLLER_Q31_SHIFT (32 - 9) -#define TABLE_SIZE 256 -#define TABLE_SPACING_Q31 0x400000 -#define TABLE_SPACING_Q15 0x80 - - /** - * @brief Macros required for SINE and COSINE Controller functions - */ - /* 1.31(q31) Fixed value of 2/360 */ - /* -1 to +1 is divided into 360 values so total spacing is (2/360) */ -#define INPUT_SPACING 0xB60B61 - - /** - * @brief Macro for Unaligned Support - */ -#ifndef UNALIGNED_SUPPORT_DISABLE - #define ALIGN4 -#else - #if defined (__GNUC__) - #define ALIGN4 __attribute__((aligned(4))) - #else - #define ALIGN4 __align(4) - #endif -#endif /* #ifndef UNALIGNED_SUPPORT_DISABLE */ - - /** - * @brief Error status returned by some functions in the library. - */ - - typedef enum - { - ARM_MATH_SUCCESS = 0, /**< No error */ - ARM_MATH_ARGUMENT_ERROR = -1, /**< One or more arguments are incorrect */ - ARM_MATH_LENGTH_ERROR = -2, /**< Length of data buffer is incorrect */ - ARM_MATH_SIZE_MISMATCH = -3, /**< Size of matrices is not compatible with the operation. */ - ARM_MATH_NANINF = -4, /**< Not-a-number (NaN) or infinity is generated */ - ARM_MATH_SINGULAR = -5, /**< Generated by matrix inversion if the input matrix is singular and cannot be inverted. */ - ARM_MATH_TEST_FAILURE = -6 /**< Test Failed */ - } arm_status; - - /** - * @brief 8-bit fractional data type in 1.7 format. - */ - typedef int8_t q7_t; - - /** - * @brief 16-bit fractional data type in 1.15 format. - */ - typedef int16_t q15_t; - - /** - * @brief 32-bit fractional data type in 1.31 format. - */ - typedef int32_t q31_t; - - /** - * @brief 64-bit fractional data type in 1.63 format. - */ - typedef int64_t q63_t; - - /** - * @brief 32-bit floating-point type definition. - */ - typedef float float32_t; - - /** - * @brief 64-bit floating-point type definition. - */ - typedef double float64_t; - - /** - * @brief definition to read/write two 16 bit values. - */ -#if defined __CC_ARM - #define __SIMD32_TYPE int32_t __packed - #define CMSIS_UNUSED __attribute__((unused)) - -#elif defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050) - #define __SIMD32_TYPE int32_t - #define CMSIS_UNUSED __attribute__((unused)) - -#elif defined __GNUC__ - #define __SIMD32_TYPE int32_t - #define CMSIS_UNUSED __attribute__((unused)) - -#elif defined __ICCARM__ - #define __SIMD32_TYPE int32_t __packed - #define CMSIS_UNUSED - -#elif defined __CSMC__ - #define __SIMD32_TYPE int32_t - #define CMSIS_UNUSED - -#elif defined __TASKING__ - #define __SIMD32_TYPE __unaligned int32_t - #define CMSIS_UNUSED - -#else - #error Unknown compiler -#endif - -#define __SIMD32(addr) (*(__SIMD32_TYPE **) & (addr)) -#define __SIMD32_CONST(addr) ((__SIMD32_TYPE *)(addr)) -#define _SIMD32_OFFSET(addr) (*(__SIMD32_TYPE *) (addr)) -#define __SIMD64(addr) (*(int64_t **) & (addr)) - -#if defined (ARM_MATH_CM3) || defined (ARM_MATH_CM0_FAMILY) - /** - * @brief definition to pack two 16 bit values. - */ -#define __PKHBT(ARG1, ARG2, ARG3) ( (((int32_t)(ARG1) << 0) & (int32_t)0x0000FFFF) | \ - (((int32_t)(ARG2) << ARG3) & (int32_t)0xFFFF0000) ) -#define __PKHTB(ARG1, ARG2, ARG3) ( (((int32_t)(ARG1) << 0) & (int32_t)0xFFFF0000) | \ - (((int32_t)(ARG2) >> ARG3) & (int32_t)0x0000FFFF) ) - -#endif - - - /** - * @brief definition to pack four 8 bit values. - */ -#ifndef ARM_MATH_BIG_ENDIAN - -#define __PACKq7(v0,v1,v2,v3) ( (((int32_t)(v0) << 0) & (int32_t)0x000000FF) | \ - (((int32_t)(v1) << 8) & (int32_t)0x0000FF00) | \ - (((int32_t)(v2) << 16) & (int32_t)0x00FF0000) | \ - (((int32_t)(v3) << 24) & (int32_t)0xFF000000) ) -#else - -#define __PACKq7(v0,v1,v2,v3) ( (((int32_t)(v3) << 0) & (int32_t)0x000000FF) | \ - (((int32_t)(v2) << 8) & (int32_t)0x0000FF00) | \ - (((int32_t)(v1) << 16) & (int32_t)0x00FF0000) | \ - (((int32_t)(v0) << 24) & (int32_t)0xFF000000) ) - -#endif - - - /** - * @brief Clips Q63 to Q31 values. - */ - static __INLINE q31_t clip_q63_to_q31( - q63_t x) - { - return ((q31_t) (x >> 32) != ((q31_t) x >> 31)) ? - ((0x7FFFFFFF ^ ((q31_t) (x >> 63)))) : (q31_t) x; - } - - /** - * @brief Clips Q63 to Q15 values. - */ - static __INLINE q15_t clip_q63_to_q15( - q63_t x) - { - return ((q31_t) (x >> 32) != ((q31_t) x >> 31)) ? - ((0x7FFF ^ ((q15_t) (x >> 63)))) : (q15_t) (x >> 15); - } - - /** - * @brief Clips Q31 to Q7 values. - */ - static __INLINE q7_t clip_q31_to_q7( - q31_t x) - { - return ((q31_t) (x >> 24) != ((q31_t) x >> 23)) ? - ((0x7F ^ ((q7_t) (x >> 31)))) : (q7_t) x; - } - - /** - * @brief Clips Q31 to Q15 values. - */ - static __INLINE q15_t clip_q31_to_q15( - q31_t x) - { - return ((q31_t) (x >> 16) != ((q31_t) x >> 15)) ? - ((0x7FFF ^ ((q15_t) (x >> 31)))) : (q15_t) x; - } - - /** - * @brief Multiplies 32 X 64 and returns 32 bit result in 2.30 format. - */ - - static __INLINE q63_t mult32x64( - q63_t x, - q31_t y) - { - return ((((q63_t) (x & 0x00000000FFFFFFFF) * y) >> 32) + - (((q63_t) (x >> 32) * y))); - } - -/* - #if defined (ARM_MATH_CM0_FAMILY) && defined ( __CC_ARM ) - #define __CLZ __clz - #endif - */ -/* note: function can be removed when all toolchain support __CLZ for Cortex-M0 */ -#if defined (ARM_MATH_CM0_FAMILY) && ((defined (__ICCARM__)) ) - static __INLINE uint32_t __CLZ( - q31_t data); - - static __INLINE uint32_t __CLZ( - q31_t data) - { - uint32_t count = 0; - uint32_t mask = 0x80000000; - - while((data & mask) == 0) - { - count += 1u; - mask = mask >> 1u; - } - - return (count); - } -#endif - - /** - * @brief Function to Calculates 1/in (reciprocal) value of Q31 Data type. - */ - - static __INLINE uint32_t arm_recip_q31( - q31_t in, - q31_t * dst, - q31_t * pRecipTable) - { - q31_t out; - uint32_t tempVal; - uint32_t index, i; - uint32_t signBits; - - if(in > 0) - { - signBits = ((uint32_t) (__CLZ( in) - 1)); - } - else - { - signBits = ((uint32_t) (__CLZ(-in) - 1)); - } - - /* Convert input sample to 1.31 format */ - in = (in << signBits); - - /* calculation of index for initial approximated Val */ - index = (uint32_t)(in >> 24); - index = (index & INDEX_MASK); - - /* 1.31 with exp 1 */ - out = pRecipTable[index]; - - /* calculation of reciprocal value */ - /* running approximation for two iterations */ - for (i = 0u; i < 2u; i++) - { - tempVal = (uint32_t) (((q63_t) in * out) >> 31); - tempVal = 0x7FFFFFFFu - tempVal; - /* 1.31 with exp 1 */ - /* out = (q31_t) (((q63_t) out * tempVal) >> 30); */ - out = clip_q63_to_q31(((q63_t) out * tempVal) >> 30); - } - - /* write output */ - *dst = out; - - /* return num of signbits of out = 1/in value */ - return (signBits + 1u); - } - - - /** - * @brief Function to Calculates 1/in (reciprocal) value of Q15 Data type. - */ - static __INLINE uint32_t arm_recip_q15( - q15_t in, - q15_t * dst, - q15_t * pRecipTable) - { - q15_t out = 0; - uint32_t tempVal = 0; - uint32_t index = 0, i = 0; - uint32_t signBits = 0; - - if(in > 0) - { - signBits = ((uint32_t)(__CLZ( in) - 17)); - } - else - { - signBits = ((uint32_t)(__CLZ(-in) - 17)); - } - - /* Convert input sample to 1.15 format */ - in = (in << signBits); - - /* calculation of index for initial approximated Val */ - index = (uint32_t)(in >> 8); - index = (index & INDEX_MASK); - - /* 1.15 with exp 1 */ - out = pRecipTable[index]; - - /* calculation of reciprocal value */ - /* running approximation for two iterations */ - for (i = 0u; i < 2u; i++) - { - tempVal = (uint32_t) (((q31_t) in * out) >> 15); - tempVal = 0x7FFFu - tempVal; - /* 1.15 with exp 1 */ - out = (q15_t) (((q31_t) out * tempVal) >> 14); - /* out = clip_q31_to_q15(((q31_t) out * tempVal) >> 14); */ - } - - /* write output */ - *dst = out; - - /* return num of signbits of out = 1/in value */ - return (signBits + 1); - } - - - /* - * @brief C custom defined intrinisic function for only M0 processors - */ -#if defined(ARM_MATH_CM0_FAMILY) - static __INLINE q31_t __SSAT( - q31_t x, - uint32_t y) - { - int32_t posMax, negMin; - uint32_t i; - - posMax = 1; - for (i = 0; i < (y - 1); i++) - { - posMax = posMax * 2; - } - - if(x > 0) - { - posMax = (posMax - 1); - - if(x > posMax) - { - x = posMax; - } - } - else - { - negMin = -posMax; - - if(x < negMin) - { - x = negMin; - } - } - return (x); - } -#endif /* end of ARM_MATH_CM0_FAMILY */ - - - /* - * @brief C custom defined intrinsic function for M3 and M0 processors - */ -#if defined (ARM_MATH_CM3) || defined (ARM_MATH_CM0_FAMILY) - - /* - * @brief C custom defined QADD8 for M3 and M0 processors - */ - static __INLINE uint32_t __QADD8( - uint32_t x, - uint32_t y) - { - q31_t r, s, t, u; - - r = __SSAT(((((q31_t)x << 24) >> 24) + (((q31_t)y << 24) >> 24)), 8) & (int32_t)0x000000FF; - s = __SSAT(((((q31_t)x << 16) >> 24) + (((q31_t)y << 16) >> 24)), 8) & (int32_t)0x000000FF; - t = __SSAT(((((q31_t)x << 8) >> 24) + (((q31_t)y << 8) >> 24)), 8) & (int32_t)0x000000FF; - u = __SSAT(((((q31_t)x ) >> 24) + (((q31_t)y ) >> 24)), 8) & (int32_t)0x000000FF; - - return ((uint32_t)((u << 24) | (t << 16) | (s << 8) | (r ))); - } - - - /* - * @brief C custom defined QSUB8 for M3 and M0 processors - */ - static __INLINE uint32_t __QSUB8( - uint32_t x, - uint32_t y) - { - q31_t r, s, t, u; - - r = __SSAT(((((q31_t)x << 24) >> 24) - (((q31_t)y << 24) >> 24)), 8) & (int32_t)0x000000FF; - s = __SSAT(((((q31_t)x << 16) >> 24) - (((q31_t)y << 16) >> 24)), 8) & (int32_t)0x000000FF; - t = __SSAT(((((q31_t)x << 8) >> 24) - (((q31_t)y << 8) >> 24)), 8) & (int32_t)0x000000FF; - u = __SSAT(((((q31_t)x ) >> 24) - (((q31_t)y ) >> 24)), 8) & (int32_t)0x000000FF; - - return ((uint32_t)((u << 24) | (t << 16) | (s << 8) | (r ))); - } - - - /* - * @brief C custom defined QADD16 for M3 and M0 processors - */ - static __INLINE uint32_t __QADD16( - uint32_t x, - uint32_t y) - { -/* q31_t r, s; without initialisation 'arm_offset_q15 test' fails but 'intrinsic' tests pass! for armCC */ - q31_t r = 0, s = 0; - - r = __SSAT(((((q31_t)x << 16) >> 16) + (((q31_t)y << 16) >> 16)), 16) & (int32_t)0x0000FFFF; - s = __SSAT(((((q31_t)x ) >> 16) + (((q31_t)y ) >> 16)), 16) & (int32_t)0x0000FFFF; - - return ((uint32_t)((s << 16) | (r ))); - } - - - /* - * @brief C custom defined SHADD16 for M3 and M0 processors - */ - static __INLINE uint32_t __SHADD16( - uint32_t x, - uint32_t y) - { - q31_t r, s; - - r = (((((q31_t)x << 16) >> 16) + (((q31_t)y << 16) >> 16)) >> 1) & (int32_t)0x0000FFFF; - s = (((((q31_t)x ) >> 16) + (((q31_t)y ) >> 16)) >> 1) & (int32_t)0x0000FFFF; - - return ((uint32_t)((s << 16) | (r ))); - } - - - /* - * @brief C custom defined QSUB16 for M3 and M0 processors - */ - static __INLINE uint32_t __QSUB16( - uint32_t x, - uint32_t y) - { - q31_t r, s; - - r = __SSAT(((((q31_t)x << 16) >> 16) - (((q31_t)y << 16) >> 16)), 16) & (int32_t)0x0000FFFF; - s = __SSAT(((((q31_t)x ) >> 16) - (((q31_t)y ) >> 16)), 16) & (int32_t)0x0000FFFF; - - return ((uint32_t)((s << 16) | (r ))); - } - - - /* - * @brief C custom defined SHSUB16 for M3 and M0 processors - */ - static __INLINE uint32_t __SHSUB16( - uint32_t x, - uint32_t y) - { - q31_t r, s; - - r = (((((q31_t)x << 16) >> 16) - (((q31_t)y << 16) >> 16)) >> 1) & (int32_t)0x0000FFFF; - s = (((((q31_t)x ) >> 16) - (((q31_t)y ) >> 16)) >> 1) & (int32_t)0x0000FFFF; - - return ((uint32_t)((s << 16) | (r ))); - } - - - /* - * @brief C custom defined QASX for M3 and M0 processors - */ - static __INLINE uint32_t __QASX( - uint32_t x, - uint32_t y) - { - q31_t r, s; - - r = __SSAT(((((q31_t)x << 16) >> 16) - (((q31_t)y ) >> 16)), 16) & (int32_t)0x0000FFFF; - s = __SSAT(((((q31_t)x ) >> 16) + (((q31_t)y << 16) >> 16)), 16) & (int32_t)0x0000FFFF; - - return ((uint32_t)((s << 16) | (r ))); - } - - - /* - * @brief C custom defined SHASX for M3 and M0 processors - */ - static __INLINE uint32_t __SHASX( - uint32_t x, - uint32_t y) - { - q31_t r, s; - - r = (((((q31_t)x << 16) >> 16) - (((q31_t)y ) >> 16)) >> 1) & (int32_t)0x0000FFFF; - s = (((((q31_t)x ) >> 16) + (((q31_t)y << 16) >> 16)) >> 1) & (int32_t)0x0000FFFF; - - return ((uint32_t)((s << 16) | (r ))); - } - - - /* - * @brief C custom defined QSAX for M3 and M0 processors - */ - static __INLINE uint32_t __QSAX( - uint32_t x, - uint32_t y) - { - q31_t r, s; - - r = __SSAT(((((q31_t)x << 16) >> 16) + (((q31_t)y ) >> 16)), 16) & (int32_t)0x0000FFFF; - s = __SSAT(((((q31_t)x ) >> 16) - (((q31_t)y << 16) >> 16)), 16) & (int32_t)0x0000FFFF; - - return ((uint32_t)((s << 16) | (r ))); - } - - - /* - * @brief C custom defined SHSAX for M3 and M0 processors - */ - static __INLINE uint32_t __SHSAX( - uint32_t x, - uint32_t y) - { - q31_t r, s; - - r = (((((q31_t)x << 16) >> 16) + (((q31_t)y ) >> 16)) >> 1) & (int32_t)0x0000FFFF; - s = (((((q31_t)x ) >> 16) - (((q31_t)y << 16) >> 16)) >> 1) & (int32_t)0x0000FFFF; - - return ((uint32_t)((s << 16) | (r ))); - } - - - /* - * @brief C custom defined SMUSDX for M3 and M0 processors - */ - static __INLINE uint32_t __SMUSDX( - uint32_t x, - uint32_t y) - { - return ((uint32_t)(((((q31_t)x << 16) >> 16) * (((q31_t)y ) >> 16)) - - ((((q31_t)x ) >> 16) * (((q31_t)y << 16) >> 16)) )); - } - - /* - * @brief C custom defined SMUADX for M3 and M0 processors - */ - static __INLINE uint32_t __SMUADX( - uint32_t x, - uint32_t y) - { - return ((uint32_t)(((((q31_t)x << 16) >> 16) * (((q31_t)y ) >> 16)) + - ((((q31_t)x ) >> 16) * (((q31_t)y << 16) >> 16)) )); - } - - - /* - * @brief C custom defined QADD for M3 and M0 processors - */ - static __INLINE int32_t __QADD( - int32_t x, - int32_t y) - { - return ((int32_t)(clip_q63_to_q31((q63_t)x + (q31_t)y))); - } - - - /* - * @brief C custom defined QSUB for M3 and M0 processors - */ - static __INLINE int32_t __QSUB( - int32_t x, - int32_t y) - { - return ((int32_t)(clip_q63_to_q31((q63_t)x - (q31_t)y))); - } - - - /* - * @brief C custom defined SMLAD for M3 and M0 processors - */ - static __INLINE uint32_t __SMLAD( - uint32_t x, - uint32_t y, - uint32_t sum) - { - return ((uint32_t)(((((q31_t)x << 16) >> 16) * (((q31_t)y << 16) >> 16)) + - ((((q31_t)x ) >> 16) * (((q31_t)y ) >> 16)) + - ( ((q31_t)sum ) ) )); - } - - - /* - * @brief C custom defined SMLADX for M3 and M0 processors - */ - static __INLINE uint32_t __SMLADX( - uint32_t x, - uint32_t y, - uint32_t sum) - { - return ((uint32_t)(((((q31_t)x << 16) >> 16) * (((q31_t)y ) >> 16)) + - ((((q31_t)x ) >> 16) * (((q31_t)y << 16) >> 16)) + - ( ((q31_t)sum ) ) )); - } - - - /* - * @brief C custom defined SMLSDX for M3 and M0 processors - */ - static __INLINE uint32_t __SMLSDX( - uint32_t x, - uint32_t y, - uint32_t sum) - { - return ((uint32_t)(((((q31_t)x << 16) >> 16) * (((q31_t)y ) >> 16)) - - ((((q31_t)x ) >> 16) * (((q31_t)y << 16) >> 16)) + - ( ((q31_t)sum ) ) )); - } - - - /* - * @brief C custom defined SMLALD for M3 and M0 processors - */ - static __INLINE uint64_t __SMLALD( - uint32_t x, - uint32_t y, - uint64_t sum) - { -/* return (sum + ((q15_t) (x >> 16) * (q15_t) (y >> 16)) + ((q15_t) x * (q15_t) y)); */ - return ((uint64_t)(((((q31_t)x << 16) >> 16) * (((q31_t)y << 16) >> 16)) + - ((((q31_t)x ) >> 16) * (((q31_t)y ) >> 16)) + - ( ((q63_t)sum ) ) )); - } - - - /* - * @brief C custom defined SMLALDX for M3 and M0 processors - */ - static __INLINE uint64_t __SMLALDX( - uint32_t x, - uint32_t y, - uint64_t sum) - { -/* return (sum + ((q15_t) (x >> 16) * (q15_t) y)) + ((q15_t) x * (q15_t) (y >> 16)); */ - return ((uint64_t)(((((q31_t)x << 16) >> 16) * (((q31_t)y ) >> 16)) + - ((((q31_t)x ) >> 16) * (((q31_t)y << 16) >> 16)) + - ( ((q63_t)sum ) ) )); - } - - - /* - * @brief C custom defined SMUAD for M3 and M0 processors - */ - static __INLINE uint32_t __SMUAD( - uint32_t x, - uint32_t y) - { - return ((uint32_t)(((((q31_t)x << 16) >> 16) * (((q31_t)y << 16) >> 16)) + - ((((q31_t)x ) >> 16) * (((q31_t)y ) >> 16)) )); - } - - - /* - * @brief C custom defined SMUSD for M3 and M0 processors - */ - static __INLINE uint32_t __SMUSD( - uint32_t x, - uint32_t y) - { - return ((uint32_t)(((((q31_t)x << 16) >> 16) * (((q31_t)y << 16) >> 16)) - - ((((q31_t)x ) >> 16) * (((q31_t)y ) >> 16)) )); - } - - - /* - * @brief C custom defined SXTB16 for M3 and M0 processors - */ - static __INLINE uint32_t __SXTB16( - uint32_t x) - { - return ((uint32_t)(((((q31_t)x << 24) >> 24) & (q31_t)0x0000FFFF) | - ((((q31_t)x << 8) >> 8) & (q31_t)0xFFFF0000) )); - } - -#endif /* defined (ARM_MATH_CM3) || defined (ARM_MATH_CM0_FAMILY) */ - - - /** - * @brief Instance structure for the Q7 FIR filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of filter coefficients in the filter. */ - q7_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - q7_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/ - } arm_fir_instance_q7; - - /** - * @brief Instance structure for the Q15 FIR filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of filter coefficients in the filter. */ - q15_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - q15_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/ - } arm_fir_instance_q15; - - /** - * @brief Instance structure for the Q31 FIR filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of filter coefficients in the filter. */ - q31_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - q31_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */ - } arm_fir_instance_q31; - - /** - * @brief Instance structure for the floating-point FIR filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of filter coefficients in the filter. */ - float32_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - float32_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */ - } arm_fir_instance_f32; - - - /** - * @brief Processing function for the Q7 FIR filter. - * @param[in] S points to an instance of the Q7 FIR filter 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. - */ - void arm_fir_q7( - const arm_fir_instance_q7 * S, - q7_t * pSrc, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q7 FIR filter. - * @param[in,out] S points to an instance of the Q7 FIR structure. - * @param[in] numTaps Number of filter coefficients in the filter. - * @param[in] pCoeffs points to the filter coefficients. - * @param[in] pState points to the state buffer. - * @param[in] blockSize number of samples that are processed. - */ - void arm_fir_init_q7( - arm_fir_instance_q7 * S, - uint16_t numTaps, - q7_t * pCoeffs, - q7_t * pState, - uint32_t blockSize); - - - /** - * @brief Processing function for the Q15 FIR filter. - * @param[in] S points to an instance of the Q15 FIR 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. - */ - void arm_fir_q15( - const arm_fir_instance_q15 * S, - q15_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Processing function for the fast Q15 FIR filter for Cortex-M3 and Cortex-M4. - * @param[in] S points to an instance of the Q15 FIR filter 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. - */ - void arm_fir_fast_q15( - const arm_fir_instance_q15 * S, - q15_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q15 FIR filter. - * @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. - * @param[in] pState points to the state buffer. - * @param[in] blockSize number of samples that are processed at a time. - * @return The function returns ARM_MATH_SUCCESS if initialization was successful or ARM_MATH_ARGUMENT_ERROR if - * <code>numTaps</code> is not a supported value. - */ - arm_status arm_fir_init_q15( - arm_fir_instance_q15 * S, - uint16_t numTaps, - q15_t * pCoeffs, - q15_t * pState, - uint32_t blockSize); - - - /** - * @brief Processing function for the Q31 FIR filter. - * @param[in] S points to an instance of the Q31 FIR filter 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. - */ - void arm_fir_q31( - const arm_fir_instance_q31 * S, - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Processing function for the fast Q31 FIR filter for Cortex-M3 and Cortex-M4. - * @param[in] S points to an instance of the Q31 FIR 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. - */ - void arm_fir_fast_q31( - const arm_fir_instance_q31 * S, - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q31 FIR filter. - * @param[in,out] S points to an instance of the Q31 FIR structure. - * @param[in] numTaps Number of filter coefficients in the filter. - * @param[in] pCoeffs points to the filter coefficients. - * @param[in] pState points to the state buffer. - * @param[in] blockSize number of samples that are processed at a time. - */ - void arm_fir_init_q31( - arm_fir_instance_q31 * S, - uint16_t numTaps, - q31_t * pCoeffs, - q31_t * pState, - uint32_t blockSize); - - - /** - * @brief Processing function for the floating-point FIR filter. - * @param[in] S points to an instance of the floating-point FIR 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. - */ - void arm_fir_f32( - const arm_fir_instance_f32 * S, - float32_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the floating-point FIR filter. - * @param[in,out] S points to an instance of the floating-point FIR filter structure. - * @param[in] numTaps Number of filter coefficients in the filter. - * @param[in] pCoeffs points to the filter coefficients. - * @param[in] pState points to the state buffer. - * @param[in] blockSize number of samples that are processed at a time. - */ - void arm_fir_init_f32( - arm_fir_instance_f32 * S, - uint16_t numTaps, - float32_t * pCoeffs, - float32_t * pState, - uint32_t blockSize); - - - /** - * @brief Instance structure for the Q15 Biquad cascade filter. - */ - typedef struct - { - int8_t numStages; /**< number of 2nd order stages in the filter. Overall order is 2*numStages. */ - q15_t *pState; /**< Points to the array of state coefficients. The array is of length 4*numStages. */ - q15_t *pCoeffs; /**< Points to the array of coefficients. The array is of length 5*numStages. */ - int8_t postShift; /**< Additional shift, in bits, applied to each output sample. */ - } arm_biquad_casd_df1_inst_q15; - - /** - * @brief Instance structure for the Q31 Biquad cascade filter. - */ - typedef struct - { - uint32_t numStages; /**< number of 2nd order stages in the filter. Overall order is 2*numStages. */ - q31_t *pState; /**< Points to the array of state coefficients. The array is of length 4*numStages. */ - q31_t *pCoeffs; /**< Points to the array of coefficients. The array is of length 5*numStages. */ - uint8_t postShift; /**< Additional shift, in bits, applied to each output sample. */ - } arm_biquad_casd_df1_inst_q31; - - /** - * @brief Instance structure for the floating-point Biquad cascade filter. - */ - typedef struct - { - uint32_t numStages; /**< number of 2nd order stages in the filter. Overall order is 2*numStages. */ - float32_t *pState; /**< Points to the array of state coefficients. The array is of length 4*numStages. */ - float32_t *pCoeffs; /**< Points to the array of coefficients. The array is of length 5*numStages. */ - } arm_biquad_casd_df1_inst_f32; - - - /** - * @brief Processing function for the Q15 Biquad cascade filter. - * @param[in] S points to an instance of the Q15 Biquad cascade 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. - */ - void arm_biquad_cascade_df1_q15( - const arm_biquad_casd_df1_inst_q15 * S, - q15_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q15 Biquad cascade filter. - * @param[in,out] S points to an instance of the Q15 Biquad cascade structure. - * @param[in] numStages number of 2nd order stages in the filter. - * @param[in] pCoeffs points to the filter coefficients. - * @param[in] pState points to the state buffer. - * @param[in] postShift Shift to be applied to the output. Varies according to the coefficients format - */ - void arm_biquad_cascade_df1_init_q15( - arm_biquad_casd_df1_inst_q15 * S, - uint8_t numStages, - q15_t * pCoeffs, - q15_t * pState, - int8_t postShift); - - - /** - * @brief Fast but less precise processing function for the Q15 Biquad cascade filter for Cortex-M3 and Cortex-M4. - * @param[in] S points to an instance of the Q15 Biquad cascade 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. - */ - void arm_biquad_cascade_df1_fast_q15( - const arm_biquad_casd_df1_inst_q15 * S, - q15_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Processing function for the Q31 Biquad cascade filter - * @param[in] S points to an instance of the Q31 Biquad cascade 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. - */ - void arm_biquad_cascade_df1_q31( - const arm_biquad_casd_df1_inst_q31 * S, - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Fast but less precise processing function for the Q31 Biquad cascade filter for Cortex-M3 and Cortex-M4. - * @param[in] S points to an instance of the Q31 Biquad cascade 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. - */ - void arm_biquad_cascade_df1_fast_q31( - const arm_biquad_casd_df1_inst_q31 * S, - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q31 Biquad cascade filter. - * @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. - * @param[in] pState points to the state buffer. - * @param[in] postShift Shift to be applied to the output. Varies according to the coefficients format - */ - 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); - - - /** - * @brief Processing function for the floating-point Biquad cascade filter. - * @param[in] S points to an instance of the floating-point Biquad cascade 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. - */ - void arm_biquad_cascade_df1_f32( - const arm_biquad_casd_df1_inst_f32 * S, - float32_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the floating-point Biquad cascade filter. - * @param[in,out] S points to an instance of the floating-point Biquad cascade structure. - * @param[in] numStages number of 2nd order stages in the filter. - * @param[in] pCoeffs points to the filter coefficients. - * @param[in] pState points to the state buffer. - */ - void arm_biquad_cascade_df1_init_f32( - arm_biquad_casd_df1_inst_f32 * S, - uint8_t numStages, - float32_t * pCoeffs, - float32_t * pState); - - - /** - * @brief Instance structure for the floating-point matrix structure. - */ - typedef struct - { - uint16_t numRows; /**< number of rows of the matrix. */ - uint16_t numCols; /**< number of columns of the matrix. */ - float32_t *pData; /**< points to the data of the matrix. */ - } arm_matrix_instance_f32; - - - /** - * @brief Instance structure for the floating-point matrix structure. - */ - typedef struct - { - uint16_t numRows; /**< number of rows of the matrix. */ - uint16_t numCols; /**< number of columns of the matrix. */ - float64_t *pData; /**< points to the data of the matrix. */ - } arm_matrix_instance_f64; - - /** - * @brief Instance structure for the Q15 matrix structure. - */ - typedef struct - { - uint16_t numRows; /**< number of rows of the matrix. */ - uint16_t numCols; /**< number of columns of the matrix. */ - q15_t *pData; /**< points to the data of the matrix. */ - } arm_matrix_instance_q15; - - /** - * @brief Instance structure for the Q31 matrix structure. - */ - typedef struct - { - uint16_t numRows; /**< number of rows of the matrix. */ - uint16_t numCols; /**< number of columns of the matrix. */ - q31_t *pData; /**< points to the data of the matrix. */ - } arm_matrix_instance_q31; - - - /** - * @brief Floating-point matrix addition. - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_add_f32( - const arm_matrix_instance_f32 * pSrcA, - const arm_matrix_instance_f32 * pSrcB, - arm_matrix_instance_f32 * pDst); - - - /** - * @brief Q15 matrix addition. - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_add_q15( - const arm_matrix_instance_q15 * pSrcA, - const arm_matrix_instance_q15 * pSrcB, - arm_matrix_instance_q15 * pDst); - - - /** - * @brief Q31 matrix addition. - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_add_q31( - const arm_matrix_instance_q31 * pSrcA, - const arm_matrix_instance_q31 * pSrcB, - arm_matrix_instance_q31 * pDst); - - - /** - * @brief Floating-point, complex, matrix multiplication. - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_cmplx_mult_f32( - const arm_matrix_instance_f32 * pSrcA, - const arm_matrix_instance_f32 * pSrcB, - arm_matrix_instance_f32 * pDst); - - - /** - * @brief Q15, complex, matrix multiplication. - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_cmplx_mult_q15( - const arm_matrix_instance_q15 * pSrcA, - const arm_matrix_instance_q15 * pSrcB, - arm_matrix_instance_q15 * pDst, - q15_t * pScratch); - - - /** - * @brief Q31, complex, matrix multiplication. - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_cmplx_mult_q31( - const arm_matrix_instance_q31 * pSrcA, - const arm_matrix_instance_q31 * pSrcB, - arm_matrix_instance_q31 * pDst); - - - /** - * @brief Floating-point matrix transpose. - * @param[in] pSrc points to the input matrix - * @param[out] pDst points to the output matrix - * @return The function returns either <code>ARM_MATH_SIZE_MISMATCH</code> - * or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_trans_f32( - const arm_matrix_instance_f32 * pSrc, - arm_matrix_instance_f32 * pDst); - - - /** - * @brief Q15 matrix transpose. - * @param[in] pSrc points to the input matrix - * @param[out] pDst points to the output matrix - * @return The function returns either <code>ARM_MATH_SIZE_MISMATCH</code> - * or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_trans_q15( - const arm_matrix_instance_q15 * pSrc, - arm_matrix_instance_q15 * pDst); - - - /** - * @brief Q31 matrix transpose. - * @param[in] pSrc points to the input matrix - * @param[out] pDst points to the output matrix - * @return The function returns either <code>ARM_MATH_SIZE_MISMATCH</code> - * or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_trans_q31( - const arm_matrix_instance_q31 * pSrc, - arm_matrix_instance_q31 * pDst); - - - /** - * @brief Floating-point matrix multiplication - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_mult_f32( - const arm_matrix_instance_f32 * pSrcA, - const arm_matrix_instance_f32 * pSrcB, - arm_matrix_instance_f32 * pDst); - - - /** - * @brief Q15 matrix multiplication - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @param[in] pState points to the array for storing intermediate results - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_mult_q15( - const arm_matrix_instance_q15 * pSrcA, - const arm_matrix_instance_q15 * pSrcB, - arm_matrix_instance_q15 * pDst, - q15_t * pState); - - - /** - * @brief Q15 matrix multiplication (fast variant) for Cortex-M3 and Cortex-M4 - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @param[in] pState points to the array for storing intermediate results - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_mult_fast_q15( - const arm_matrix_instance_q15 * pSrcA, - const arm_matrix_instance_q15 * pSrcB, - arm_matrix_instance_q15 * pDst, - q15_t * pState); - - - /** - * @brief Q31 matrix multiplication - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_mult_q31( - const arm_matrix_instance_q31 * pSrcA, - const arm_matrix_instance_q31 * pSrcB, - arm_matrix_instance_q31 * pDst); - - - /** - * @brief Q31 matrix multiplication (fast variant) for Cortex-M3 and Cortex-M4 - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_mult_fast_q31( - const arm_matrix_instance_q31 * pSrcA, - const arm_matrix_instance_q31 * pSrcB, - arm_matrix_instance_q31 * pDst); - - - /** - * @brief Floating-point matrix subtraction - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_sub_f32( - const arm_matrix_instance_f32 * pSrcA, - const arm_matrix_instance_f32 * pSrcB, - arm_matrix_instance_f32 * pDst); - - - /** - * @brief Q15 matrix subtraction - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_sub_q15( - const arm_matrix_instance_q15 * pSrcA, - const arm_matrix_instance_q15 * pSrcB, - arm_matrix_instance_q15 * pDst); - - - /** - * @brief Q31 matrix subtraction - * @param[in] pSrcA points to the first input matrix structure - * @param[in] pSrcB points to the second input matrix structure - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_sub_q31( - const arm_matrix_instance_q31 * pSrcA, - const arm_matrix_instance_q31 * pSrcB, - arm_matrix_instance_q31 * pDst); - - - /** - * @brief Floating-point matrix scaling. - * @param[in] pSrc points to the input matrix - * @param[in] scale scale factor - * @param[out] pDst points to the output matrix - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_scale_f32( - const arm_matrix_instance_f32 * pSrc, - float32_t scale, - arm_matrix_instance_f32 * pDst); - - - /** - * @brief Q15 matrix scaling. - * @param[in] pSrc points to input matrix - * @param[in] scaleFract fractional portion of the scale factor - * @param[in] shift number of bits to shift the result by - * @param[out] pDst points to output matrix - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_scale_q15( - const arm_matrix_instance_q15 * pSrc, - q15_t scaleFract, - int32_t shift, - arm_matrix_instance_q15 * pDst); - - - /** - * @brief Q31 matrix scaling. - * @param[in] pSrc points to input matrix - * @param[in] scaleFract fractional portion of the scale factor - * @param[in] shift number of bits to shift the result by - * @param[out] pDst points to output matrix structure - * @return The function returns either - * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking. - */ - arm_status arm_mat_scale_q31( - const arm_matrix_instance_q31 * pSrc, - q31_t scaleFract, - int32_t shift, - arm_matrix_instance_q31 * pDst); - - - /** - * @brief Q31 matrix initialization. - * @param[in,out] S points to an instance of the floating-point matrix structure. - * @param[in] nRows number of rows in the matrix. - * @param[in] nColumns number of columns in the matrix. - * @param[in] pData points to the matrix data array. - */ - void arm_mat_init_q31( - arm_matrix_instance_q31 * S, - uint16_t nRows, - uint16_t nColumns, - q31_t * pData); - - - /** - * @brief Q15 matrix initialization. - * @param[in,out] S points to an instance of the floating-point matrix structure. - * @param[in] nRows number of rows in the matrix. - * @param[in] nColumns number of columns in the matrix. - * @param[in] pData points to the matrix data array. - */ - void arm_mat_init_q15( - arm_matrix_instance_q15 * S, - uint16_t nRows, - uint16_t nColumns, - q15_t * pData); - - - /** - * @brief Floating-point matrix initialization. - * @param[in,out] S points to an instance of the floating-point matrix structure. - * @param[in] nRows number of rows in the matrix. - * @param[in] nColumns number of columns in the matrix. - * @param[in] pData points to the matrix data array. - */ - void arm_mat_init_f32( - arm_matrix_instance_f32 * S, - uint16_t nRows, - uint16_t nColumns, - float32_t * pData); - - - - /** - * @brief Instance structure for the Q15 PID Control. - */ - typedef struct - { - q15_t A0; /**< The derived gain, A0 = Kp + Ki + Kd . */ -#ifdef ARM_MATH_CM0_FAMILY - q15_t A1; - q15_t A2; -#else - q31_t A1; /**< The derived gain A1 = -Kp - 2Kd | Kd.*/ -#endif - q15_t state[3]; /**< The state array of length 3. */ - q15_t Kp; /**< The proportional gain. */ - q15_t Ki; /**< The integral gain. */ - q15_t Kd; /**< The derivative gain. */ - } arm_pid_instance_q15; - - /** - * @brief Instance structure for the Q31 PID Control. - */ - typedef struct - { - q31_t A0; /**< The derived gain, A0 = Kp + Ki + Kd . */ - q31_t A1; /**< The derived gain, A1 = -Kp - 2Kd. */ - q31_t A2; /**< The derived gain, A2 = Kd . */ - q31_t state[3]; /**< The state array of length 3. */ - q31_t Kp; /**< The proportional gain. */ - q31_t Ki; /**< The integral gain. */ - q31_t Kd; /**< The derivative gain. */ - } arm_pid_instance_q31; - - /** - * @brief Instance structure for the floating-point PID Control. - */ - typedef struct - { - float32_t A0; /**< The derived gain, A0 = Kp + Ki + Kd . */ - float32_t A1; /**< The derived gain, A1 = -Kp - 2Kd. */ - float32_t A2; /**< The derived gain, A2 = Kd . */ - float32_t state[3]; /**< The state array of length 3. */ - float32_t Kp; /**< The proportional gain. */ - float32_t Ki; /**< The integral gain. */ - float32_t Kd; /**< The derivative gain. */ - } arm_pid_instance_f32; - - - - /** - * @brief Initialization function for the floating-point PID Control. - * @param[in,out] S points to an instance of the PID structure. - * @param[in] resetStateFlag flag to reset the state. 0 = no change in state 1 = reset the state. - */ - void arm_pid_init_f32( - arm_pid_instance_f32 * S, - int32_t resetStateFlag); - - - /** - * @brief Reset function for the floating-point PID Control. - * @param[in,out] S is an instance of the floating-point PID Control structure - */ - void arm_pid_reset_f32( - arm_pid_instance_f32 * S); - - - /** - * @brief Initialization function for the Q31 PID Control. - * @param[in,out] S points to an instance of the Q15 PID structure. - * @param[in] resetStateFlag flag to reset the state. 0 = no change in state 1 = reset the state. - */ - void arm_pid_init_q31( - arm_pid_instance_q31 * S, - int32_t resetStateFlag); - - - /** - * @brief Reset function for the Q31 PID Control. - * @param[in,out] S points to an instance of the Q31 PID Control structure - */ - - void arm_pid_reset_q31( - arm_pid_instance_q31 * S); - - - /** - * @brief Initialization function for the Q15 PID Control. - * @param[in,out] S points to an instance of the Q15 PID structure. - * @param[in] resetStateFlag flag to reset the state. 0 = no change in state 1 = reset the state. - */ - void arm_pid_init_q15( - arm_pid_instance_q15 * S, - int32_t resetStateFlag); - - - /** - * @brief Reset function for the Q15 PID Control. - * @param[in,out] S points to an instance of the q15 PID Control structure - */ - void arm_pid_reset_q15( - arm_pid_instance_q15 * S); - - - /** - * @brief Instance structure for the floating-point Linear Interpolate function. - */ - typedef struct - { - uint32_t nValues; /**< nValues */ - float32_t x1; /**< x1 */ - float32_t xSpacing; /**< xSpacing */ - float32_t *pYData; /**< pointer to the table of Y values */ - } arm_linear_interp_instance_f32; - - /** - * @brief Instance structure for the floating-point bilinear interpolation function. - */ - typedef struct - { - uint16_t numRows; /**< number of rows in the data table. */ - uint16_t numCols; /**< number of columns in the data table. */ - float32_t *pData; /**< points to the data table. */ - } arm_bilinear_interp_instance_f32; - - /** - * @brief Instance structure for the Q31 bilinear interpolation function. - */ - typedef struct - { - uint16_t numRows; /**< number of rows in the data table. */ - uint16_t numCols; /**< number of columns in the data table. */ - q31_t *pData; /**< points to the data table. */ - } arm_bilinear_interp_instance_q31; - - /** - * @brief Instance structure for the Q15 bilinear interpolation function. - */ - typedef struct - { - uint16_t numRows; /**< number of rows in the data table. */ - uint16_t numCols; /**< number of columns in the data table. */ - q15_t *pData; /**< points to the data table. */ - } arm_bilinear_interp_instance_q15; - - /** - * @brief Instance structure for the Q15 bilinear interpolation function. - */ - typedef struct - { - uint16_t numRows; /**< number of rows in the data table. */ - uint16_t numCols; /**< number of columns in the data table. */ - q7_t *pData; /**< points to the data table. */ - } arm_bilinear_interp_instance_q7; - - - /** - * @brief Q7 vector multiplication. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in each vector - */ - void arm_mult_q7( - q7_t * pSrcA, - q7_t * pSrcB, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Q15 vector multiplication. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in each vector - */ - void arm_mult_q15( - q15_t * pSrcA, - q15_t * pSrcB, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Q31 vector multiplication. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in each vector - */ - void arm_mult_q31( - q31_t * pSrcA, - q31_t * pSrcB, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Floating-point vector multiplication. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in each vector - */ - void arm_mult_f32( - float32_t * pSrcA, - float32_t * pSrcB, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Instance structure for the Q15 CFFT/CIFFT function. - */ - typedef struct - { - uint16_t fftLen; /**< length of the FFT. */ - uint8_t ifftFlag; /**< flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. */ - uint8_t bitReverseFlag; /**< flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. */ - q15_t *pTwiddle; /**< points to the Sin twiddle factor table. */ - uint16_t *pBitRevTable; /**< points to the bit reversal table. */ - uint16_t twidCoefModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */ - uint16_t bitRevFactor; /**< bit reversal modifier that supports different size FFTs with the same bit reversal table. */ - } arm_cfft_radix2_instance_q15; - -/* Deprecated */ - arm_status arm_cfft_radix2_init_q15( - arm_cfft_radix2_instance_q15 * S, - uint16_t fftLen, - uint8_t ifftFlag, - uint8_t bitReverseFlag); - -/* Deprecated */ - void arm_cfft_radix2_q15( - const arm_cfft_radix2_instance_q15 * S, - q15_t * pSrc); - - - /** - * @brief Instance structure for the Q15 CFFT/CIFFT function. - */ - typedef struct - { - uint16_t fftLen; /**< length of the FFT. */ - uint8_t ifftFlag; /**< flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. */ - uint8_t bitReverseFlag; /**< flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. */ - q15_t *pTwiddle; /**< points to the twiddle factor table. */ - uint16_t *pBitRevTable; /**< points to the bit reversal table. */ - uint16_t twidCoefModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */ - uint16_t bitRevFactor; /**< bit reversal modifier that supports different size FFTs with the same bit reversal table. */ - } arm_cfft_radix4_instance_q15; - -/* Deprecated */ - arm_status arm_cfft_radix4_init_q15( - arm_cfft_radix4_instance_q15 * S, - uint16_t fftLen, - uint8_t ifftFlag, - uint8_t bitReverseFlag); - -/* Deprecated */ - void arm_cfft_radix4_q15( - const arm_cfft_radix4_instance_q15 * S, - q15_t * pSrc); - - /** - * @brief Instance structure for the Radix-2 Q31 CFFT/CIFFT function. - */ - typedef struct - { - uint16_t fftLen; /**< length of the FFT. */ - uint8_t ifftFlag; /**< flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. */ - uint8_t bitReverseFlag; /**< flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. */ - q31_t *pTwiddle; /**< points to the Twiddle factor table. */ - uint16_t *pBitRevTable; /**< points to the bit reversal table. */ - uint16_t twidCoefModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */ - uint16_t bitRevFactor; /**< bit reversal modifier that supports different size FFTs with the same bit reversal table. */ - } arm_cfft_radix2_instance_q31; - -/* Deprecated */ - arm_status arm_cfft_radix2_init_q31( - arm_cfft_radix2_instance_q31 * S, - uint16_t fftLen, - uint8_t ifftFlag, - uint8_t bitReverseFlag); - -/* Deprecated */ - void arm_cfft_radix2_q31( - const arm_cfft_radix2_instance_q31 * S, - q31_t * pSrc); - - /** - * @brief Instance structure for the Q31 CFFT/CIFFT function. - */ - typedef struct - { - uint16_t fftLen; /**< length of the FFT. */ - uint8_t ifftFlag; /**< flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. */ - uint8_t bitReverseFlag; /**< flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. */ - q31_t *pTwiddle; /**< points to the twiddle factor table. */ - uint16_t *pBitRevTable; /**< points to the bit reversal table. */ - uint16_t twidCoefModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */ - uint16_t bitRevFactor; /**< bit reversal modifier that supports different size FFTs with the same bit reversal table. */ - } arm_cfft_radix4_instance_q31; - -/* Deprecated */ - void arm_cfft_radix4_q31( - const arm_cfft_radix4_instance_q31 * S, - q31_t * pSrc); - -/* Deprecated */ - arm_status arm_cfft_radix4_init_q31( - arm_cfft_radix4_instance_q31 * S, - uint16_t fftLen, - uint8_t ifftFlag, - uint8_t bitReverseFlag); - - /** - * @brief Instance structure for the floating-point CFFT/CIFFT function. - */ - typedef struct - { - uint16_t fftLen; /**< length of the FFT. */ - uint8_t ifftFlag; /**< flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. */ - uint8_t bitReverseFlag; /**< flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. */ - float32_t *pTwiddle; /**< points to the Twiddle factor table. */ - uint16_t *pBitRevTable; /**< points to the bit reversal table. */ - uint16_t twidCoefModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */ - uint16_t bitRevFactor; /**< bit reversal modifier that supports different size FFTs with the same bit reversal table. */ - float32_t onebyfftLen; /**< value of 1/fftLen. */ - } arm_cfft_radix2_instance_f32; - -/* Deprecated */ - arm_status arm_cfft_radix2_init_f32( - arm_cfft_radix2_instance_f32 * S, - uint16_t fftLen, - uint8_t ifftFlag, - uint8_t bitReverseFlag); - -/* Deprecated */ - void arm_cfft_radix2_f32( - const arm_cfft_radix2_instance_f32 * S, - float32_t * pSrc); - - /** - * @brief Instance structure for the floating-point CFFT/CIFFT function. - */ - typedef struct - { - uint16_t fftLen; /**< length of the FFT. */ - uint8_t ifftFlag; /**< flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. */ - uint8_t bitReverseFlag; /**< flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. */ - float32_t *pTwiddle; /**< points to the Twiddle factor table. */ - uint16_t *pBitRevTable; /**< points to the bit reversal table. */ - uint16_t twidCoefModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */ - uint16_t bitRevFactor; /**< bit reversal modifier that supports different size FFTs with the same bit reversal table. */ - float32_t onebyfftLen; /**< value of 1/fftLen. */ - } arm_cfft_radix4_instance_f32; - -/* Deprecated */ - arm_status arm_cfft_radix4_init_f32( - arm_cfft_radix4_instance_f32 * S, - uint16_t fftLen, - uint8_t ifftFlag, - uint8_t bitReverseFlag); - -/* Deprecated */ - void arm_cfft_radix4_f32( - const arm_cfft_radix4_instance_f32 * S, - float32_t * pSrc); - - /** - * @brief Instance structure for the fixed-point CFFT/CIFFT function. - */ - typedef struct - { - uint16_t fftLen; /**< length of the FFT. */ - const q15_t *pTwiddle; /**< points to the Twiddle factor table. */ - const uint16_t *pBitRevTable; /**< points to the bit reversal table. */ - uint16_t bitRevLength; /**< bit reversal table length. */ - } arm_cfft_instance_q15; - -void arm_cfft_q15( - const arm_cfft_instance_q15 * S, - q15_t * p1, - uint8_t ifftFlag, - uint8_t bitReverseFlag); - - /** - * @brief Instance structure for the fixed-point CFFT/CIFFT function. - */ - typedef struct - { - uint16_t fftLen; /**< length of the FFT. */ - const q31_t *pTwiddle; /**< points to the Twiddle factor table. */ - const uint16_t *pBitRevTable; /**< points to the bit reversal table. */ - uint16_t bitRevLength; /**< bit reversal table length. */ - } arm_cfft_instance_q31; - -void arm_cfft_q31( - const arm_cfft_instance_q31 * S, - q31_t * p1, - uint8_t ifftFlag, - uint8_t bitReverseFlag); - - /** - * @brief Instance structure for the floating-point CFFT/CIFFT function. - */ - typedef struct - { - uint16_t fftLen; /**< length of the FFT. */ - const float32_t *pTwiddle; /**< points to the Twiddle factor table. */ - const uint16_t *pBitRevTable; /**< points to the bit reversal table. */ - uint16_t bitRevLength; /**< bit reversal table length. */ - } arm_cfft_instance_f32; - - void arm_cfft_f32( - const arm_cfft_instance_f32 * S, - float32_t * p1, - uint8_t ifftFlag, - uint8_t bitReverseFlag); - - /** - * @brief Instance structure for the Q15 RFFT/RIFFT function. - */ - typedef struct - { - uint32_t fftLenReal; /**< length of the real FFT. */ - uint8_t ifftFlagR; /**< flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform. */ - uint8_t bitReverseFlagR; /**< flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output. */ - uint32_t twidCoefRModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */ - q15_t *pTwiddleAReal; /**< points to the real twiddle factor table. */ - q15_t *pTwiddleBReal; /**< points to the imag twiddle factor table. */ - const arm_cfft_instance_q15 *pCfft; /**< points to the complex FFT instance. */ - } arm_rfft_instance_q15; - - arm_status arm_rfft_init_q15( - arm_rfft_instance_q15 * S, - uint32_t fftLenReal, - uint32_t ifftFlagR, - uint32_t bitReverseFlag); - - void arm_rfft_q15( - const arm_rfft_instance_q15 * S, - q15_t * pSrc, - q15_t * pDst); - - /** - * @brief Instance structure for the Q31 RFFT/RIFFT function. - */ - typedef struct - { - uint32_t fftLenReal; /**< length of the real FFT. */ - uint8_t ifftFlagR; /**< flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform. */ - uint8_t bitReverseFlagR; /**< flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output. */ - uint32_t twidCoefRModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */ - q31_t *pTwiddleAReal; /**< points to the real twiddle factor table. */ - q31_t *pTwiddleBReal; /**< points to the imag twiddle factor table. */ - const arm_cfft_instance_q31 *pCfft; /**< points to the complex FFT instance. */ - } arm_rfft_instance_q31; - - arm_status arm_rfft_init_q31( - arm_rfft_instance_q31 * S, - uint32_t fftLenReal, - uint32_t ifftFlagR, - uint32_t bitReverseFlag); - - void arm_rfft_q31( - const arm_rfft_instance_q31 * S, - q31_t * pSrc, - q31_t * pDst); - - /** - * @brief Instance structure for the floating-point RFFT/RIFFT function. - */ - typedef struct - { - uint32_t fftLenReal; /**< length of the real FFT. */ - uint16_t fftLenBy2; /**< length of the complex FFT. */ - uint8_t ifftFlagR; /**< flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform. */ - uint8_t bitReverseFlagR; /**< flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output. */ - uint32_t twidCoefRModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */ - float32_t *pTwiddleAReal; /**< points to the real twiddle factor table. */ - float32_t *pTwiddleBReal; /**< points to the imag twiddle factor table. */ - arm_cfft_radix4_instance_f32 *pCfft; /**< points to the complex FFT instance. */ - } arm_rfft_instance_f32; - - arm_status arm_rfft_init_f32( - arm_rfft_instance_f32 * S, - arm_cfft_radix4_instance_f32 * S_CFFT, - uint32_t fftLenReal, - uint32_t ifftFlagR, - uint32_t bitReverseFlag); - - void arm_rfft_f32( - const arm_rfft_instance_f32 * S, - float32_t * pSrc, - float32_t * pDst); - - /** - * @brief Instance structure for the floating-point RFFT/RIFFT function. - */ -typedef struct - { - arm_cfft_instance_f32 Sint; /**< Internal CFFT structure. */ - uint16_t fftLenRFFT; /**< length of the real sequence */ - float32_t * pTwiddleRFFT; /**< Twiddle factors real stage */ - } arm_rfft_fast_instance_f32 ; - -arm_status arm_rfft_fast_init_f32 ( - arm_rfft_fast_instance_f32 * S, - uint16_t fftLen); - -void arm_rfft_fast_f32( - arm_rfft_fast_instance_f32 * S, - float32_t * p, float32_t * pOut, - uint8_t ifftFlag); - - /** - * @brief Instance structure for the floating-point DCT4/IDCT4 function. - */ - typedef struct - { - uint16_t N; /**< length of the DCT4. */ - uint16_t Nby2; /**< half of the length of the DCT4. */ - float32_t normalize; /**< normalizing factor. */ - float32_t *pTwiddle; /**< points to the twiddle factor table. */ - float32_t *pCosFactor; /**< points to the cosFactor table. */ - arm_rfft_instance_f32 *pRfft; /**< points to the real FFT instance. */ - arm_cfft_radix4_instance_f32 *pCfft; /**< points to the complex FFT instance. */ - } arm_dct4_instance_f32; - - - /** - * @brief Initialization function for the floating-point DCT4/IDCT4. - * @param[in,out] S points to an instance of floating-point DCT4/IDCT4 structure. - * @param[in] S_RFFT points to an instance of floating-point RFFT/RIFFT structure. - * @param[in] S_CFFT points to an instance of floating-point CFFT/CIFFT structure. - * @param[in] N length of the DCT4. - * @param[in] Nby2 half of the length of the DCT4. - * @param[in] normalize normalizing factor. - * @return arm_status function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if <code>fftLenReal</code> is not a supported transform length. - */ - arm_status arm_dct4_init_f32( - arm_dct4_instance_f32 * S, - arm_rfft_instance_f32 * S_RFFT, - arm_cfft_radix4_instance_f32 * S_CFFT, - uint16_t N, - uint16_t Nby2, - float32_t normalize); - - - /** - * @brief Processing function for the floating-point DCT4/IDCT4. - * @param[in] S points to an instance of the floating-point DCT4/IDCT4 structure. - * @param[in] pState points to state buffer. - * @param[in,out] pInlineBuffer points to the in-place input and output buffer. - */ - void arm_dct4_f32( - const arm_dct4_instance_f32 * S, - float32_t * pState, - float32_t * pInlineBuffer); - - - /** - * @brief Instance structure for the Q31 DCT4/IDCT4 function. - */ - typedef struct - { - uint16_t N; /**< length of the DCT4. */ - uint16_t Nby2; /**< half of the length of the DCT4. */ - q31_t normalize; /**< normalizing factor. */ - q31_t *pTwiddle; /**< points to the twiddle factor table. */ - q31_t *pCosFactor; /**< points to the cosFactor table. */ - arm_rfft_instance_q31 *pRfft; /**< points to the real FFT instance. */ - arm_cfft_radix4_instance_q31 *pCfft; /**< points to the complex FFT instance. */ - } arm_dct4_instance_q31; - - - /** - * @brief Initialization function for the Q31 DCT4/IDCT4. - * @param[in,out] S points to an instance of Q31 DCT4/IDCT4 structure. - * @param[in] S_RFFT points to an instance of Q31 RFFT/RIFFT structure - * @param[in] S_CFFT points to an instance of Q31 CFFT/CIFFT structure - * @param[in] N length of the DCT4. - * @param[in] Nby2 half of the length of the DCT4. - * @param[in] normalize normalizing factor. - * @return arm_status function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if <code>N</code> is not a supported transform length. - */ - arm_status arm_dct4_init_q31( - arm_dct4_instance_q31 * S, - arm_rfft_instance_q31 * S_RFFT, - arm_cfft_radix4_instance_q31 * S_CFFT, - uint16_t N, - uint16_t Nby2, - q31_t normalize); - - - /** - * @brief Processing function for the Q31 DCT4/IDCT4. - * @param[in] S points to an instance of the Q31 DCT4 structure. - * @param[in] pState points to state buffer. - * @param[in,out] pInlineBuffer points to the in-place input and output buffer. - */ - void arm_dct4_q31( - const arm_dct4_instance_q31 * S, - q31_t * pState, - q31_t * pInlineBuffer); - - - /** - * @brief Instance structure for the Q15 DCT4/IDCT4 function. - */ - typedef struct - { - uint16_t N; /**< length of the DCT4. */ - uint16_t Nby2; /**< half of the length of the DCT4. */ - q15_t normalize; /**< normalizing factor. */ - q15_t *pTwiddle; /**< points to the twiddle factor table. */ - q15_t *pCosFactor; /**< points to the cosFactor table. */ - arm_rfft_instance_q15 *pRfft; /**< points to the real FFT instance. */ - arm_cfft_radix4_instance_q15 *pCfft; /**< points to the complex FFT instance. */ - } arm_dct4_instance_q15; - - - /** - * @brief Initialization function for the Q15 DCT4/IDCT4. - * @param[in,out] S points to an instance of Q15 DCT4/IDCT4 structure. - * @param[in] S_RFFT points to an instance of Q15 RFFT/RIFFT structure. - * @param[in] S_CFFT points to an instance of Q15 CFFT/CIFFT structure. - * @param[in] N length of the DCT4. - * @param[in] Nby2 half of the length of the DCT4. - * @param[in] normalize normalizing factor. - * @return arm_status function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_ARGUMENT_ERROR if <code>N</code> is not a supported transform length. - */ - arm_status arm_dct4_init_q15( - arm_dct4_instance_q15 * S, - arm_rfft_instance_q15 * S_RFFT, - arm_cfft_radix4_instance_q15 * S_CFFT, - uint16_t N, - uint16_t Nby2, - q15_t normalize); - - - /** - * @brief Processing function for the Q15 DCT4/IDCT4. - * @param[in] S points to an instance of the Q15 DCT4 structure. - * @param[in] pState points to state buffer. - * @param[in,out] pInlineBuffer points to the in-place input and output buffer. - */ - void arm_dct4_q15( - const arm_dct4_instance_q15 * S, - q15_t * pState, - q15_t * pInlineBuffer); - - - /** - * @brief Floating-point vector addition. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in each vector - */ - void arm_add_f32( - float32_t * pSrcA, - float32_t * pSrcB, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Q7 vector addition. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in each vector - */ - void arm_add_q7( - q7_t * pSrcA, - q7_t * pSrcB, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Q15 vector addition. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in each vector - */ - void arm_add_q15( - q15_t * pSrcA, - q15_t * pSrcB, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Q31 vector addition. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in each vector - */ - void arm_add_q31( - q31_t * pSrcA, - q31_t * pSrcB, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Floating-point vector subtraction. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in each vector - */ - void arm_sub_f32( - float32_t * pSrcA, - float32_t * pSrcB, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Q7 vector subtraction. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in each vector - */ - void arm_sub_q7( - q7_t * pSrcA, - q7_t * pSrcB, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Q15 vector subtraction. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in each vector - */ - void arm_sub_q15( - q15_t * pSrcA, - q15_t * pSrcB, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Q31 vector subtraction. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in each vector - */ - void arm_sub_q31( - q31_t * pSrcA, - q31_t * pSrcB, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Multiplies a floating-point vector by a scalar. - * @param[in] pSrc points to the input vector - * @param[in] scale scale factor to be applied - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_scale_f32( - float32_t * pSrc, - float32_t scale, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Multiplies a Q7 vector by a scalar. - * @param[in] pSrc points to the input vector - * @param[in] scaleFract fractional portion of the scale value - * @param[in] shift number of bits to shift the result by - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_scale_q7( - q7_t * pSrc, - q7_t scaleFract, - int8_t shift, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Multiplies a Q15 vector by a scalar. - * @param[in] pSrc points to the input vector - * @param[in] scaleFract fractional portion of the scale value - * @param[in] shift number of bits to shift the result by - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_scale_q15( - q15_t * pSrc, - q15_t scaleFract, - int8_t shift, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Multiplies a Q31 vector by a scalar. - * @param[in] pSrc points to the input vector - * @param[in] scaleFract fractional portion of the scale value - * @param[in] shift number of bits to shift the result by - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_scale_q31( - q31_t * pSrc, - q31_t scaleFract, - int8_t shift, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Q7 vector absolute value. - * @param[in] pSrc points to the input buffer - * @param[out] pDst points to the output buffer - * @param[in] blockSize number of samples in each vector - */ - void arm_abs_q7( - q7_t * pSrc, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Floating-point vector absolute value. - * @param[in] pSrc points to the input buffer - * @param[out] pDst points to the output buffer - * @param[in] blockSize number of samples in each vector - */ - void arm_abs_f32( - float32_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Q15 vector absolute value. - * @param[in] pSrc points to the input buffer - * @param[out] pDst points to the output buffer - * @param[in] blockSize number of samples in each vector - */ - void arm_abs_q15( - q15_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Q31 vector absolute value. - * @param[in] pSrc points to the input buffer - * @param[out] pDst points to the output buffer - * @param[in] blockSize number of samples in each vector - */ - void arm_abs_q31( - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Dot product of floating-point vectors. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[in] blockSize number of samples in each vector - * @param[out] result output result returned here - */ - void arm_dot_prod_f32( - float32_t * pSrcA, - float32_t * pSrcB, - uint32_t blockSize, - float32_t * result); - - - /** - * @brief Dot product of Q7 vectors. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[in] blockSize number of samples in each vector - * @param[out] result output result returned here - */ - void arm_dot_prod_q7( - q7_t * pSrcA, - q7_t * pSrcB, - uint32_t blockSize, - q31_t * result); - - - /** - * @brief Dot product of Q15 vectors. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[in] blockSize number of samples in each vector - * @param[out] result output result returned here - */ - void arm_dot_prod_q15( - q15_t * pSrcA, - q15_t * pSrcB, - uint32_t blockSize, - q63_t * result); - - - /** - * @brief Dot product of Q31 vectors. - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[in] blockSize number of samples in each vector - * @param[out] result output result returned here - */ - void arm_dot_prod_q31( - q31_t * pSrcA, - q31_t * pSrcB, - uint32_t blockSize, - q63_t * result); - - - /** - * @brief Shifts the elements of a Q7 vector a specified number of bits. - * @param[in] pSrc points to the input vector - * @param[in] shiftBits number of bits to shift. A positive value shifts left; a negative value shifts right. - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_shift_q7( - q7_t * pSrc, - int8_t shiftBits, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Shifts the elements of a Q15 vector a specified number of bits. - * @param[in] pSrc points to the input vector - * @param[in] shiftBits number of bits to shift. A positive value shifts left; a negative value shifts right. - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_shift_q15( - q15_t * pSrc, - int8_t shiftBits, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Shifts the elements of a Q31 vector a specified number of bits. - * @param[in] pSrc points to the input vector - * @param[in] shiftBits number of bits to shift. A positive value shifts left; a negative value shifts right. - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_shift_q31( - q31_t * pSrc, - int8_t shiftBits, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Adds a constant offset to a floating-point vector. - * @param[in] pSrc points to the input vector - * @param[in] offset is the offset to be added - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_offset_f32( - float32_t * pSrc, - float32_t offset, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Adds a constant offset to a Q7 vector. - * @param[in] pSrc points to the input vector - * @param[in] offset is the offset to be added - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_offset_q7( - q7_t * pSrc, - q7_t offset, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Adds a constant offset to a Q15 vector. - * @param[in] pSrc points to the input vector - * @param[in] offset is the offset to be added - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_offset_q15( - q15_t * pSrc, - q15_t offset, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Adds a constant offset to a Q31 vector. - * @param[in] pSrc points to the input vector - * @param[in] offset is the offset to be added - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_offset_q31( - q31_t * pSrc, - q31_t offset, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Negates the elements of a floating-point vector. - * @param[in] pSrc points to the input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_negate_f32( - float32_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Negates the elements of a Q7 vector. - * @param[in] pSrc points to the input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_negate_q7( - q7_t * pSrc, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Negates the elements of a Q15 vector. - * @param[in] pSrc points to the input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_negate_q15( - q15_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Negates the elements of a Q31 vector. - * @param[in] pSrc points to the input vector - * @param[out] pDst points to the output vector - * @param[in] blockSize number of samples in the vector - */ - void arm_negate_q31( - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Copies the elements of a floating-point vector. - * @param[in] pSrc input pointer - * @param[out] pDst output pointer - * @param[in] blockSize number of samples to process - */ - void arm_copy_f32( - float32_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Copies the elements of a Q7 vector. - * @param[in] pSrc input pointer - * @param[out] pDst output pointer - * @param[in] blockSize number of samples to process - */ - void arm_copy_q7( - q7_t * pSrc, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Copies the elements of a Q15 vector. - * @param[in] pSrc input pointer - * @param[out] pDst output pointer - * @param[in] blockSize number of samples to process - */ - void arm_copy_q15( - q15_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Copies the elements of a Q31 vector. - * @param[in] pSrc input pointer - * @param[out] pDst output pointer - * @param[in] blockSize number of samples to process - */ - void arm_copy_q31( - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Fills a constant value into a floating-point vector. - * @param[in] value input value to be filled - * @param[out] pDst output pointer - * @param[in] blockSize number of samples to process - */ - void arm_fill_f32( - float32_t value, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Fills a constant value into a Q7 vector. - * @param[in] value input value to be filled - * @param[out] pDst output pointer - * @param[in] blockSize number of samples to process - */ - void arm_fill_q7( - q7_t value, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Fills a constant value into a Q15 vector. - * @param[in] value input value to be filled - * @param[out] pDst output pointer - * @param[in] blockSize number of samples to process - */ - void arm_fill_q15( - q15_t value, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Fills a constant value into a Q31 vector. - * @param[in] value input value to be filled - * @param[out] pDst output pointer - * @param[in] blockSize number of samples to process - */ - void arm_fill_q31( - q31_t value, - q31_t * pDst, - uint32_t blockSize); - - -/** - * @brief Convolution of floating-point sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the location where the output result is written. Length srcALen+srcBLen-1. - */ - void arm_conv_f32( - float32_t * pSrcA, - uint32_t srcALen, - float32_t * pSrcB, - uint32_t srcBLen, - float32_t * pDst); - - - /** - * @brief Convolution of Q15 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length srcALen+srcBLen-1. - * @param[in] pScratch1 points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2. - * @param[in] pScratch2 points to scratch buffer of size min(srcALen, srcBLen). - */ - void arm_conv_opt_q15( - q15_t * pSrcA, - uint32_t srcALen, - q15_t * pSrcB, - uint32_t srcBLen, - q15_t * pDst, - q15_t * pScratch1, - q15_t * pScratch2); - - -/** - * @brief Convolution of Q15 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the location where the output result is written. Length srcALen+srcBLen-1. - */ - void arm_conv_q15( - q15_t * pSrcA, - uint32_t srcALen, - q15_t * pSrcB, - uint32_t srcBLen, - q15_t * pDst); - - - /** - * @brief Convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4 - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length srcALen+srcBLen-1. - */ - void arm_conv_fast_q15( - q15_t * pSrcA, - uint32_t srcALen, - q15_t * pSrcB, - uint32_t srcBLen, - q15_t * pDst); - - - /** - * @brief Convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4 - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length srcALen+srcBLen-1. - * @param[in] pScratch1 points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2. - * @param[in] pScratch2 points to scratch buffer of size min(srcALen, srcBLen). - */ - void arm_conv_fast_opt_q15( - q15_t * pSrcA, - uint32_t srcALen, - q15_t * pSrcB, - uint32_t srcBLen, - q15_t * pDst, - q15_t * pScratch1, - q15_t * pScratch2); - - - /** - * @brief Convolution of Q31 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length srcALen+srcBLen-1. - */ - void arm_conv_q31( - q31_t * pSrcA, - uint32_t srcALen, - q31_t * pSrcB, - uint32_t srcBLen, - q31_t * pDst); - - - /** - * @brief Convolution of Q31 sequences (fast version) for Cortex-M3 and Cortex-M4 - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length srcALen+srcBLen-1. - */ - void arm_conv_fast_q31( - q31_t * pSrcA, - uint32_t srcALen, - q31_t * pSrcB, - uint32_t srcBLen, - q31_t * pDst); - - - /** - * @brief Convolution of Q7 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length srcALen+srcBLen-1. - * @param[in] pScratch1 points to scratch buffer(of type q15_t) of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2. - * @param[in] pScratch2 points to scratch buffer (of type q15_t) of size min(srcALen, srcBLen). - */ - void arm_conv_opt_q7( - q7_t * pSrcA, - uint32_t srcALen, - q7_t * pSrcB, - uint32_t srcBLen, - q7_t * pDst, - q15_t * pScratch1, - q15_t * pScratch2); - - - /** - * @brief Convolution of Q7 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length srcALen+srcBLen-1. - */ - void arm_conv_q7( - q7_t * pSrcA, - uint32_t srcALen, - q7_t * pSrcB, - uint32_t srcBLen, - q7_t * pDst); - - - /** - * @brief Partial convolution of floating-point sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data - * @param[in] firstIndex is the first output sample to start with. - * @param[in] numPoints is the number of output points to be computed. - * @return Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2]. - */ - arm_status arm_conv_partial_f32( - float32_t * pSrcA, - uint32_t srcALen, - float32_t * pSrcB, - uint32_t srcBLen, - float32_t * pDst, - uint32_t firstIndex, - uint32_t numPoints); - - - /** - * @brief Partial convolution of Q15 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data - * @param[in] firstIndex is the first output sample to start with. - * @param[in] numPoints is the number of output points to be computed. - * @param[in] pScratch1 points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2. - * @param[in] pScratch2 points to scratch buffer of size min(srcALen, srcBLen). - * @return Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2]. - */ - arm_status arm_conv_partial_opt_q15( - q15_t * pSrcA, - uint32_t srcALen, - q15_t * pSrcB, - uint32_t srcBLen, - q15_t * pDst, - uint32_t firstIndex, - uint32_t numPoints, - q15_t * pScratch1, - q15_t * pScratch2); - - - /** - * @brief Partial convolution of Q15 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data - * @param[in] firstIndex is the first output sample to start with. - * @param[in] numPoints is the number of output points to be computed. - * @return Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2]. - */ - arm_status arm_conv_partial_q15( - q15_t * pSrcA, - uint32_t srcALen, - q15_t * pSrcB, - uint32_t srcBLen, - q15_t * pDst, - uint32_t firstIndex, - uint32_t numPoints); - - - /** - * @brief Partial convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4 - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data - * @param[in] firstIndex is the first output sample to start with. - * @param[in] numPoints is the number of output points to be computed. - * @return Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2]. - */ - arm_status arm_conv_partial_fast_q15( - q15_t * pSrcA, - uint32_t srcALen, - q15_t * pSrcB, - uint32_t srcBLen, - q15_t * pDst, - uint32_t firstIndex, - uint32_t numPoints); - - - /** - * @brief Partial convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4 - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data - * @param[in] firstIndex is the first output sample to start with. - * @param[in] numPoints is the number of output points to be computed. - * @param[in] pScratch1 points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2. - * @param[in] pScratch2 points to scratch buffer of size min(srcALen, srcBLen). - * @return Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2]. - */ - arm_status arm_conv_partial_fast_opt_q15( - q15_t * pSrcA, - uint32_t srcALen, - q15_t * pSrcB, - uint32_t srcBLen, - q15_t * pDst, - uint32_t firstIndex, - uint32_t numPoints, - q15_t * pScratch1, - q15_t * pScratch2); - - - /** - * @brief Partial convolution of Q31 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data - * @param[in] firstIndex is the first output sample to start with. - * @param[in] numPoints is the number of output points to be computed. - * @return Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2]. - */ - arm_status arm_conv_partial_q31( - q31_t * pSrcA, - uint32_t srcALen, - q31_t * pSrcB, - uint32_t srcBLen, - q31_t * pDst, - uint32_t firstIndex, - uint32_t numPoints); - - - /** - * @brief Partial convolution of Q31 sequences (fast version) for Cortex-M3 and Cortex-M4 - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data - * @param[in] firstIndex is the first output sample to start with. - * @param[in] numPoints is the number of output points to be computed. - * @return Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2]. - */ - arm_status arm_conv_partial_fast_q31( - q31_t * pSrcA, - uint32_t srcALen, - q31_t * pSrcB, - uint32_t srcBLen, - q31_t * pDst, - uint32_t firstIndex, - uint32_t numPoints); - - - /** - * @brief Partial convolution of Q7 sequences - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data - * @param[in] firstIndex is the first output sample to start with. - * @param[in] numPoints is the number of output points to be computed. - * @param[in] pScratch1 points to scratch buffer(of type q15_t) of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2. - * @param[in] pScratch2 points to scratch buffer (of type q15_t) of size min(srcALen, srcBLen). - * @return Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2]. - */ - arm_status arm_conv_partial_opt_q7( - q7_t * pSrcA, - uint32_t srcALen, - q7_t * pSrcB, - uint32_t srcBLen, - q7_t * pDst, - uint32_t firstIndex, - uint32_t numPoints, - q15_t * pScratch1, - q15_t * pScratch2); - - -/** - * @brief Partial convolution of Q7 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data - * @param[in] firstIndex is the first output sample to start with. - * @param[in] numPoints is the number of output points to be computed. - * @return Returns either ARM_MATH_SUCCESS if the function completed correctly or ARM_MATH_ARGUMENT_ERROR if the requested subset is not in the range [0 srcALen+srcBLen-2]. - */ - arm_status arm_conv_partial_q7( - q7_t * pSrcA, - uint32_t srcALen, - q7_t * pSrcB, - uint32_t srcBLen, - q7_t * pDst, - uint32_t firstIndex, - uint32_t numPoints); - - - /** - * @brief Instance structure for the Q15 FIR decimator. - */ - typedef struct - { - uint8_t M; /**< decimation factor. */ - uint16_t numTaps; /**< number of coefficients in the filter. */ - q15_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/ - q15_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - } arm_fir_decimate_instance_q15; - - /** - * @brief Instance structure for the Q31 FIR decimator. - */ - typedef struct - { - uint8_t M; /**< decimation factor. */ - uint16_t numTaps; /**< number of coefficients in the filter. */ - q31_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/ - q31_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - } arm_fir_decimate_instance_q31; - - /** - * @brief Instance structure for the floating-point FIR decimator. - */ - typedef struct - { - uint8_t M; /**< decimation factor. */ - uint16_t numTaps; /**< number of coefficients in the filter. */ - float32_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/ - float32_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - } arm_fir_decimate_instance_f32; - - - /** - * @brief Processing function for the floating-point FIR decimator. - * @param[in] S points to an instance of the floating-point FIR decimator 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 input samples to process per call. - */ - void arm_fir_decimate_f32( - const arm_fir_decimate_instance_f32 * S, - float32_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the floating-point FIR decimator. - * @param[in,out] S points to an instance of the floating-point FIR decimator structure. - * @param[in] numTaps number of coefficients in the filter. - * @param[in] M decimation factor. - * @param[in] pCoeffs points to the filter coefficients. - * @param[in] pState points to the state buffer. - * @param[in] blockSize number of input samples to process per call. - * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_LENGTH_ERROR if - * <code>blockSize</code> is not a multiple of <code>M</code>. - */ - arm_status arm_fir_decimate_init_f32( - arm_fir_decimate_instance_f32 * S, - uint16_t numTaps, - uint8_t M, - float32_t * pCoeffs, - float32_t * pState, - uint32_t blockSize); - - - /** - * @brief Processing function for the Q15 FIR decimator. - * @param[in] S points to an instance of the Q15 FIR decimator 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 input samples to process per call. - */ - void arm_fir_decimate_q15( - const arm_fir_decimate_instance_q15 * S, - q15_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Processing function for the Q15 FIR decimator (fast variant) for Cortex-M3 and Cortex-M4. - * @param[in] S points to an instance of the Q15 FIR decimator 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 input samples to process per call. - */ - void arm_fir_decimate_fast_q15( - const arm_fir_decimate_instance_q15 * S, - q15_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q15 FIR decimator. - * @param[in,out] S points to an instance of the Q15 FIR decimator structure. - * @param[in] numTaps number of coefficients in the filter. - * @param[in] M decimation factor. - * @param[in] pCoeffs points to the filter coefficients. - * @param[in] pState points to the state buffer. - * @param[in] blockSize number of input samples to process per call. - * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_LENGTH_ERROR if - * <code>blockSize</code> is not a multiple of <code>M</code>. - */ - arm_status arm_fir_decimate_init_q15( - arm_fir_decimate_instance_q15 * S, - uint16_t numTaps, - uint8_t M, - q15_t * pCoeffs, - q15_t * pState, - uint32_t blockSize); - - - /** - * @brief Processing function for the Q31 FIR decimator. - * @param[in] S points to an instance of the Q31 FIR decimator 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 input samples to process per call. - */ - void arm_fir_decimate_q31( - const arm_fir_decimate_instance_q31 * S, - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - /** - * @brief Processing function for the Q31 FIR decimator (fast variant) for Cortex-M3 and Cortex-M4. - * @param[in] S points to an instance of the Q31 FIR decimator 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 input samples to process per call. - */ - void arm_fir_decimate_fast_q31( - arm_fir_decimate_instance_q31 * S, - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q31 FIR decimator. - * @param[in,out] S points to an instance of the Q31 FIR decimator structure. - * @param[in] numTaps number of coefficients in the filter. - * @param[in] M decimation factor. - * @param[in] pCoeffs points to the filter coefficients. - * @param[in] pState points to the state buffer. - * @param[in] blockSize number of input samples to process per call. - * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_LENGTH_ERROR if - * <code>blockSize</code> is not a multiple of <code>M</code>. - */ - arm_status arm_fir_decimate_init_q31( - arm_fir_decimate_instance_q31 * S, - uint16_t numTaps, - uint8_t M, - q31_t * pCoeffs, - q31_t * pState, - uint32_t blockSize); - - - /** - * @brief Instance structure for the Q15 FIR interpolator. - */ - typedef struct - { - uint8_t L; /**< upsample factor. */ - uint16_t phaseLength; /**< length of each polyphase filter component. */ - q15_t *pCoeffs; /**< points to the coefficient array. The array is of length L*phaseLength. */ - q15_t *pState; /**< points to the state variable array. The array is of length blockSize+phaseLength-1. */ - } arm_fir_interpolate_instance_q15; - - /** - * @brief Instance structure for the Q31 FIR interpolator. - */ - typedef struct - { - uint8_t L; /**< upsample factor. */ - uint16_t phaseLength; /**< length of each polyphase filter component. */ - q31_t *pCoeffs; /**< points to the coefficient array. The array is of length L*phaseLength. */ - q31_t *pState; /**< points to the state variable array. The array is of length blockSize+phaseLength-1. */ - } arm_fir_interpolate_instance_q31; - - /** - * @brief Instance structure for the floating-point FIR interpolator. - */ - typedef struct - { - uint8_t L; /**< upsample factor. */ - uint16_t phaseLength; /**< length of each polyphase filter component. */ - float32_t *pCoeffs; /**< points to the coefficient array. The array is of length L*phaseLength. */ - float32_t *pState; /**< points to the state variable array. The array is of length phaseLength+numTaps-1. */ - } arm_fir_interpolate_instance_f32; - - - /** - * @brief Processing function for the Q15 FIR interpolator. - * @param[in] S points to an instance of the Q15 FIR interpolator 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 input samples to process per call. - */ - void arm_fir_interpolate_q15( - const arm_fir_interpolate_instance_q15 * S, - q15_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q15 FIR interpolator. - * @param[in,out] S points to an instance of the Q15 FIR interpolator structure. - * @param[in] L upsample factor. - * @param[in] numTaps number of filter coefficients in the filter. - * @param[in] pCoeffs points to the filter coefficient buffer. - * @param[in] pState points to the state buffer. - * @param[in] blockSize number of input samples to process per call. - * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_LENGTH_ERROR if - * the filter length <code>numTaps</code> is not a multiple of the interpolation factor <code>L</code>. - */ - arm_status arm_fir_interpolate_init_q15( - arm_fir_interpolate_instance_q15 * S, - uint8_t L, - uint16_t numTaps, - q15_t * pCoeffs, - q15_t * pState, - uint32_t blockSize); - - - /** - * @brief Processing function for the Q31 FIR interpolator. - * @param[in] S points to an instance of the Q15 FIR interpolator 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 input samples to process per call. - */ - void arm_fir_interpolate_q31( - const arm_fir_interpolate_instance_q31 * S, - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q31 FIR interpolator. - * @param[in,out] S points to an instance of the Q31 FIR interpolator structure. - * @param[in] L upsample factor. - * @param[in] numTaps number of filter coefficients in the filter. - * @param[in] pCoeffs points to the filter coefficient buffer. - * @param[in] pState points to the state buffer. - * @param[in] blockSize number of input samples to process per call. - * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_LENGTH_ERROR if - * the filter length <code>numTaps</code> is not a multiple of the interpolation factor <code>L</code>. - */ - arm_status arm_fir_interpolate_init_q31( - arm_fir_interpolate_instance_q31 * S, - uint8_t L, - uint16_t numTaps, - q31_t * pCoeffs, - q31_t * pState, - uint32_t blockSize); - - - /** - * @brief Processing function for the floating-point FIR interpolator. - * @param[in] S points to an instance of the floating-point FIR interpolator 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 input samples to process per call. - */ - void arm_fir_interpolate_f32( - const arm_fir_interpolate_instance_f32 * S, - float32_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the floating-point FIR interpolator. - * @param[in,out] S points to an instance of the floating-point FIR interpolator structure. - * @param[in] L upsample factor. - * @param[in] numTaps number of filter coefficients in the filter. - * @param[in] pCoeffs points to the filter coefficient buffer. - * @param[in] pState points to the state buffer. - * @param[in] blockSize number of input samples to process per call. - * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_LENGTH_ERROR if - * the filter length <code>numTaps</code> is not a multiple of the interpolation factor <code>L</code>. - */ - arm_status arm_fir_interpolate_init_f32( - arm_fir_interpolate_instance_f32 * S, - uint8_t L, - uint16_t numTaps, - float32_t * pCoeffs, - float32_t * pState, - uint32_t blockSize); - - - /** - * @brief Instance structure for the high precision Q31 Biquad cascade filter. - */ - typedef struct - { - uint8_t numStages; /**< number of 2nd order stages in the filter. Overall order is 2*numStages. */ - q63_t *pState; /**< points to the array of state coefficients. The array is of length 4*numStages. */ - q31_t *pCoeffs; /**< points to the array of coefficients. The array is of length 5*numStages. */ - uint8_t postShift; /**< additional shift, in bits, applied to each output sample. */ - } arm_biquad_cas_df1_32x64_ins_q31; - - - /** - * @param[in] S points to an instance of the high precision Q31 Biquad cascade filter 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. - */ - void arm_biquad_cas_df1_32x64_q31( - const arm_biquad_cas_df1_32x64_ins_q31 * S, - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @param[in,out] S points to an instance of the high precision Q31 Biquad cascade filter structure. - * @param[in] numStages number of 2nd order stages in the filter. - * @param[in] pCoeffs points to the filter coefficients. - * @param[in] pState points to the state buffer. - * @param[in] postShift shift to be applied to the output. Varies according to the coefficients format - */ - void arm_biquad_cas_df1_32x64_init_q31( - arm_biquad_cas_df1_32x64_ins_q31 * S, - uint8_t numStages, - q31_t * pCoeffs, - q63_t * pState, - uint8_t postShift); - - - /** - * @brief Instance structure for the floating-point transposed direct form II Biquad cascade filter. - */ - typedef struct - { - uint8_t numStages; /**< number of 2nd order stages in the filter. Overall order is 2*numStages. */ - float32_t *pState; /**< points to the array of state coefficients. The array is of length 2*numStages. */ - float32_t *pCoeffs; /**< points to the array of coefficients. The array is of length 5*numStages. */ - } arm_biquad_cascade_df2T_instance_f32; - - /** - * @brief Instance structure for the floating-point transposed direct form II Biquad cascade filter. - */ - typedef struct - { - uint8_t numStages; /**< number of 2nd order stages in the filter. Overall order is 2*numStages. */ - float32_t *pState; /**< points to the array of state coefficients. The array is of length 4*numStages. */ - float32_t *pCoeffs; /**< points to the array of coefficients. The array is of length 5*numStages. */ - } arm_biquad_cascade_stereo_df2T_instance_f32; - - /** - * @brief Instance structure for the floating-point transposed direct form II Biquad cascade filter. - */ - typedef struct - { - uint8_t numStages; /**< number of 2nd order stages in the filter. Overall order is 2*numStages. */ - float64_t *pState; /**< points to the array of state coefficients. The array is of length 2*numStages. */ - float64_t *pCoeffs; /**< points to the array of coefficients. The array is of length 5*numStages. */ - } arm_biquad_cascade_df2T_instance_f64; - - - /** - * @brief Processing function for the floating-point transposed direct form II Biquad cascade filter. - * @param[in] S points to an instance of the filter data 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. - */ - void arm_biquad_cascade_df2T_f32( - const arm_biquad_cascade_df2T_instance_f32 * S, - float32_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Processing function for the floating-point transposed direct form II Biquad cascade filter. 2 channels - * @param[in] S points to an instance of the filter data 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. - */ - void arm_biquad_cascade_stereo_df2T_f32( - const arm_biquad_cascade_stereo_df2T_instance_f32 * S, - float32_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Processing function for the floating-point transposed direct form II Biquad cascade filter. - * @param[in] S points to an instance of the filter data 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. - */ - void arm_biquad_cascade_df2T_f64( - const arm_biquad_cascade_df2T_instance_f64 * S, - float64_t * pSrc, - float64_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the floating-point transposed direct form II Biquad cascade filter. - * @param[in,out] S points to an instance of the filter data structure. - * @param[in] numStages number of 2nd order stages in the filter. - * @param[in] pCoeffs points to the filter coefficients. - * @param[in] pState points to the state buffer. - */ - void arm_biquad_cascade_df2T_init_f32( - arm_biquad_cascade_df2T_instance_f32 * S, - uint8_t numStages, - float32_t * pCoeffs, - float32_t * pState); - - - /** - * @brief Initialization function for the floating-point transposed direct form II Biquad cascade filter. - * @param[in,out] S points to an instance of the filter data structure. - * @param[in] numStages number of 2nd order stages in the filter. - * @param[in] pCoeffs points to the filter coefficients. - * @param[in] pState points to the state buffer. - */ - void arm_biquad_cascade_stereo_df2T_init_f32( - arm_biquad_cascade_stereo_df2T_instance_f32 * S, - uint8_t numStages, - float32_t * pCoeffs, - float32_t * pState); - - - /** - * @brief Initialization function for the floating-point transposed direct form II Biquad cascade filter. - * @param[in,out] S points to an instance of the filter data structure. - * @param[in] numStages number of 2nd order stages in the filter. - * @param[in] pCoeffs points to the filter coefficients. - * @param[in] pState points to the state buffer. - */ - void arm_biquad_cascade_df2T_init_f64( - arm_biquad_cascade_df2T_instance_f64 * S, - uint8_t numStages, - float64_t * pCoeffs, - float64_t * pState); - - - /** - * @brief Instance structure for the Q15 FIR lattice filter. - */ - typedef struct - { - uint16_t numStages; /**< number of filter stages. */ - q15_t *pState; /**< points to the state variable array. The array is of length numStages. */ - q15_t *pCoeffs; /**< points to the coefficient array. The array is of length numStages. */ - } arm_fir_lattice_instance_q15; - - /** - * @brief Instance structure for the Q31 FIR lattice filter. - */ - typedef struct - { - uint16_t numStages; /**< number of filter stages. */ - q31_t *pState; /**< points to the state variable array. The array is of length numStages. */ - q31_t *pCoeffs; /**< points to the coefficient array. The array is of length numStages. */ - } arm_fir_lattice_instance_q31; - - /** - * @brief Instance structure for the floating-point FIR lattice filter. - */ - typedef struct - { - uint16_t numStages; /**< number of filter stages. */ - float32_t *pState; /**< points to the state variable array. The array is of length numStages. */ - float32_t *pCoeffs; /**< points to the coefficient array. The array is of length numStages. */ - } arm_fir_lattice_instance_f32; - - - /** - * @brief Initialization function for the Q15 FIR lattice filter. - * @param[in] S points to an instance of the Q15 FIR lattice structure. - * @param[in] numStages number of filter stages. - * @param[in] pCoeffs points to the coefficient buffer. The array is of length numStages. - * @param[in] pState points to the state buffer. The array is of length numStages. - */ - void arm_fir_lattice_init_q15( - arm_fir_lattice_instance_q15 * S, - uint16_t numStages, - q15_t * pCoeffs, - q15_t * pState); - - - /** - * @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. - */ - void arm_fir_lattice_q15( - const arm_fir_lattice_instance_q15 * S, - q15_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q31 FIR lattice filter. - * @param[in] S points to an instance of the Q31 FIR lattice structure. - * @param[in] numStages number of filter stages. - * @param[in] pCoeffs points to the coefficient buffer. The array is of length numStages. - * @param[in] pState points to the state buffer. The array is of length numStages. - */ - void arm_fir_lattice_init_q31( - arm_fir_lattice_instance_q31 * S, - uint16_t numStages, - q31_t * pCoeffs, - q31_t * pState); - - - /** - * @brief Processing function for the Q31 FIR lattice filter. - * @param[in] S points to an instance of the Q31 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. - */ - void arm_fir_lattice_q31( - const arm_fir_lattice_instance_q31 * S, - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - -/** - * @brief Initialization function for the floating-point FIR lattice filter. - * @param[in] S points to an instance of the floating-point FIR lattice structure. - * @param[in] numStages number of filter stages. - * @param[in] pCoeffs points to the coefficient buffer. The array is of length numStages. - * @param[in] pState points to the state buffer. The array is of length numStages. - */ - void arm_fir_lattice_init_f32( - arm_fir_lattice_instance_f32 * S, - uint16_t numStages, - float32_t * pCoeffs, - float32_t * pState); - - - /** - * @brief Processing function for the floating-point FIR lattice filter. - * @param[in] S points to an instance of the floating-point 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. - */ - void arm_fir_lattice_f32( - const arm_fir_lattice_instance_f32 * S, - float32_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Instance structure for the Q15 IIR lattice filter. - */ - typedef struct - { - uint16_t numStages; /**< number of stages in the filter. */ - q15_t *pState; /**< points to the state variable array. The array is of length numStages+blockSize. */ - q15_t *pkCoeffs; /**< points to the reflection coefficient array. The array is of length numStages. */ - q15_t *pvCoeffs; /**< points to the ladder coefficient array. The array is of length numStages+1. */ - } arm_iir_lattice_instance_q15; - - /** - * @brief Instance structure for the Q31 IIR lattice filter. - */ - typedef struct - { - uint16_t numStages; /**< number of stages in the filter. */ - q31_t *pState; /**< points to the state variable array. The array is of length numStages+blockSize. */ - q31_t *pkCoeffs; /**< points to the reflection coefficient array. The array is of length numStages. */ - q31_t *pvCoeffs; /**< points to the ladder coefficient array. The array is of length numStages+1. */ - } arm_iir_lattice_instance_q31; - - /** - * @brief Instance structure for the floating-point IIR lattice filter. - */ - typedef struct - { - uint16_t numStages; /**< number of stages in the filter. */ - float32_t *pState; /**< points to the state variable array. The array is of length numStages+blockSize. */ - float32_t *pkCoeffs; /**< points to the reflection coefficient array. The array is of length numStages. */ - float32_t *pvCoeffs; /**< points to the ladder coefficient array. The array is of length numStages+1. */ - } arm_iir_lattice_instance_f32; - - - /** - * @brief Processing function for the floating-point IIR lattice filter. - * @param[in] S points to an instance of the floating-point IIR 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. - */ - void arm_iir_lattice_f32( - const arm_iir_lattice_instance_f32 * S, - float32_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the floating-point IIR lattice filter. - * @param[in] S points to an instance of the floating-point IIR lattice structure. - * @param[in] numStages number of stages in the filter. - * @param[in] pkCoeffs points to the reflection coefficient buffer. The array is of length numStages. - * @param[in] pvCoeffs points to the ladder coefficient buffer. The array is of length numStages+1. - * @param[in] pState points to the state buffer. The array is of length numStages+blockSize-1. - * @param[in] blockSize number of samples to process. - */ - void arm_iir_lattice_init_f32( - arm_iir_lattice_instance_f32 * S, - uint16_t numStages, - float32_t * pkCoeffs, - float32_t * pvCoeffs, - float32_t * pState, - uint32_t blockSize); - - - /** - * @brief Processing function for the Q31 IIR lattice filter. - * @param[in] S points to an instance of the Q31 IIR 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. - */ - void arm_iir_lattice_q31( - const arm_iir_lattice_instance_q31 * S, - q31_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q31 IIR lattice filter. - * @param[in] S points to an instance of the Q31 IIR lattice structure. - * @param[in] numStages number of stages in the filter. - * @param[in] pkCoeffs points to the reflection coefficient buffer. The array is of length numStages. - * @param[in] pvCoeffs points to the ladder coefficient buffer. The array is of length numStages+1. - * @param[in] pState points to the state buffer. The array is of length numStages+blockSize. - * @param[in] blockSize number of samples to process. - */ - void arm_iir_lattice_init_q31( - arm_iir_lattice_instance_q31 * S, - uint16_t numStages, - q31_t * pkCoeffs, - q31_t * pvCoeffs, - q31_t * pState, - uint32_t blockSize); - - - /** - * @brief Processing function for the Q15 IIR lattice filter. - * @param[in] S points to an instance of the Q15 IIR 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. - */ - void arm_iir_lattice_q15( - const arm_iir_lattice_instance_q15 * S, - q15_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - -/** - * @brief Initialization function for the Q15 IIR lattice filter. - * @param[in] S points to an instance of the fixed-point Q15 IIR lattice structure. - * @param[in] numStages number of stages in the filter. - * @param[in] pkCoeffs points to reflection coefficient buffer. The array is of length numStages. - * @param[in] pvCoeffs points to ladder coefficient buffer. The array is of length numStages+1. - * @param[in] pState points to state buffer. The array is of length numStages+blockSize. - * @param[in] blockSize number of samples to process per call. - */ - void arm_iir_lattice_init_q15( - arm_iir_lattice_instance_q15 * S, - uint16_t numStages, - q15_t * pkCoeffs, - q15_t * pvCoeffs, - q15_t * pState, - uint32_t blockSize); - - - /** - * @brief Instance structure for the floating-point LMS filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of coefficients in the filter. */ - float32_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - float32_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */ - float32_t mu; /**< step size that controls filter coefficient updates. */ - } arm_lms_instance_f32; - - - /** - * @brief Processing function for floating-point LMS filter. - * @param[in] S points to an instance of the floating-point LMS filter structure. - * @param[in] pSrc points to the block of input data. - * @param[in] pRef points to the block of reference data. - * @param[out] pOut points to the block of output data. - * @param[out] pErr points to the block of error data. - * @param[in] blockSize number of samples to process. - */ - void arm_lms_f32( - const arm_lms_instance_f32 * S, - float32_t * pSrc, - float32_t * pRef, - float32_t * pOut, - float32_t * pErr, - uint32_t blockSize); - - - /** - * @brief Initialization function for floating-point LMS filter. - * @param[in] S points to an instance of the floating-point LMS filter structure. - * @param[in] numTaps number of filter coefficients. - * @param[in] pCoeffs points to the coefficient buffer. - * @param[in] pState points to state buffer. - * @param[in] mu step size that controls filter coefficient updates. - * @param[in] blockSize number of samples to process. - */ - void arm_lms_init_f32( - arm_lms_instance_f32 * S, - uint16_t numTaps, - float32_t * pCoeffs, - float32_t * pState, - float32_t mu, - uint32_t blockSize); - - - /** - * @brief Instance structure for the Q15 LMS filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of coefficients in the filter. */ - q15_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - q15_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */ - q15_t mu; /**< step size that controls filter coefficient updates. */ - uint32_t postShift; /**< bit shift applied to coefficients. */ - } arm_lms_instance_q15; - - - /** - * @brief Initialization function for the Q15 LMS filter. - * @param[in] S points to an instance of the Q15 LMS filter structure. - * @param[in] numTaps number of filter coefficients. - * @param[in] pCoeffs points to the coefficient buffer. - * @param[in] pState points to the state buffer. - * @param[in] mu step size that controls filter coefficient updates. - * @param[in] blockSize number of samples to process. - * @param[in] postShift bit shift applied to coefficients. - */ - void arm_lms_init_q15( - arm_lms_instance_q15 * S, - uint16_t numTaps, - q15_t * pCoeffs, - q15_t * pState, - q15_t mu, - uint32_t blockSize, - uint32_t postShift); - - - /** - * @brief Processing function for Q15 LMS filter. - * @param[in] S points to an instance of the Q15 LMS filter structure. - * @param[in] pSrc points to the block of input data. - * @param[in] pRef points to the block of reference data. - * @param[out] pOut points to the block of output data. - * @param[out] pErr points to the block of error data. - * @param[in] blockSize number of samples to process. - */ - void arm_lms_q15( - const arm_lms_instance_q15 * S, - q15_t * pSrc, - q15_t * pRef, - q15_t * pOut, - q15_t * pErr, - uint32_t blockSize); - - - /** - * @brief Instance structure for the Q31 LMS filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of coefficients in the filter. */ - q31_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - q31_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */ - q31_t mu; /**< step size that controls filter coefficient updates. */ - uint32_t postShift; /**< bit shift applied to coefficients. */ - } arm_lms_instance_q31; - - - /** - * @brief Processing function for Q31 LMS filter. - * @param[in] S points to an instance of the Q15 LMS filter structure. - * @param[in] pSrc points to the block of input data. - * @param[in] pRef points to the block of reference data. - * @param[out] pOut points to the block of output data. - * @param[out] pErr points to the block of error data. - * @param[in] blockSize number of samples to process. - */ - void arm_lms_q31( - const arm_lms_instance_q31 * S, - q31_t * pSrc, - q31_t * pRef, - q31_t * pOut, - q31_t * pErr, - uint32_t blockSize); - - - /** - * @brief Initialization function for Q31 LMS filter. - * @param[in] S points to an instance of the Q31 LMS filter structure. - * @param[in] numTaps number of filter coefficients. - * @param[in] pCoeffs points to coefficient buffer. - * @param[in] pState points to state buffer. - * @param[in] mu step size that controls filter coefficient updates. - * @param[in] blockSize number of samples to process. - * @param[in] postShift bit shift applied to coefficients. - */ - void arm_lms_init_q31( - arm_lms_instance_q31 * S, - uint16_t numTaps, - q31_t * pCoeffs, - q31_t * pState, - q31_t mu, - uint32_t blockSize, - uint32_t postShift); - - - /** - * @brief Instance structure for the floating-point normalized LMS filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of coefficients in the filter. */ - float32_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - float32_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */ - float32_t mu; /**< step size that control filter coefficient updates. */ - float32_t energy; /**< saves previous frame energy. */ - float32_t x0; /**< saves previous input sample. */ - } arm_lms_norm_instance_f32; - - - /** - * @brief Processing function for floating-point normalized LMS filter. - * @param[in] S points to an instance of the floating-point normalized LMS filter structure. - * @param[in] pSrc points to the block of input data. - * @param[in] pRef points to the block of reference data. - * @param[out] pOut points to the block of output data. - * @param[out] pErr points to the block of error data. - * @param[in] blockSize number of samples to process. - */ - void arm_lms_norm_f32( - arm_lms_norm_instance_f32 * S, - float32_t * pSrc, - float32_t * pRef, - float32_t * pOut, - float32_t * pErr, - uint32_t blockSize); - - - /** - * @brief Initialization function for floating-point normalized LMS filter. - * @param[in] S points to an instance of the floating-point LMS filter structure. - * @param[in] numTaps number of filter coefficients. - * @param[in] pCoeffs points to coefficient buffer. - * @param[in] pState points to state buffer. - * @param[in] mu step size that controls filter coefficient updates. - * @param[in] blockSize number of samples to process. - */ - void arm_lms_norm_init_f32( - arm_lms_norm_instance_f32 * S, - uint16_t numTaps, - float32_t * pCoeffs, - float32_t * pState, - float32_t mu, - uint32_t blockSize); - - - /** - * @brief Instance structure for the Q31 normalized LMS filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of coefficients in the filter. */ - q31_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - q31_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */ - q31_t mu; /**< step size that controls filter coefficient updates. */ - uint8_t postShift; /**< bit shift applied to coefficients. */ - q31_t *recipTable; /**< points to the reciprocal initial value table. */ - q31_t energy; /**< saves previous frame energy. */ - q31_t x0; /**< saves previous input sample. */ - } arm_lms_norm_instance_q31; - - - /** - * @brief Processing function for Q31 normalized LMS filter. - * @param[in] S points to an instance of the Q31 normalized LMS filter structure. - * @param[in] pSrc points to the block of input data. - * @param[in] pRef points to the block of reference data. - * @param[out] pOut points to the block of output data. - * @param[out] pErr points to the block of error data. - * @param[in] blockSize number of samples to process. - */ - void arm_lms_norm_q31( - arm_lms_norm_instance_q31 * S, - q31_t * pSrc, - q31_t * pRef, - q31_t * pOut, - q31_t * pErr, - uint32_t blockSize); - - - /** - * @brief Initialization function for Q31 normalized LMS filter. - * @param[in] S points to an instance of the Q31 normalized LMS filter structure. - * @param[in] numTaps number of filter coefficients. - * @param[in] pCoeffs points to coefficient buffer. - * @param[in] pState points to state buffer. - * @param[in] mu step size that controls filter coefficient updates. - * @param[in] blockSize number of samples to process. - * @param[in] postShift bit shift applied to coefficients. - */ - void arm_lms_norm_init_q31( - arm_lms_norm_instance_q31 * S, - uint16_t numTaps, - q31_t * pCoeffs, - q31_t * pState, - q31_t mu, - uint32_t blockSize, - uint8_t postShift); - - - /** - * @brief Instance structure for the Q15 normalized LMS filter. - */ - typedef struct - { - uint16_t numTaps; /**< Number of coefficients in the filter. */ - q15_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */ - q15_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */ - q15_t mu; /**< step size that controls filter coefficient updates. */ - uint8_t postShift; /**< bit shift applied to coefficients. */ - q15_t *recipTable; /**< Points to the reciprocal initial value table. */ - q15_t energy; /**< saves previous frame energy. */ - q15_t x0; /**< saves previous input sample. */ - } arm_lms_norm_instance_q15; - - - /** - * @brief Processing function for Q15 normalized LMS filter. - * @param[in] S points to an instance of the Q15 normalized LMS filter structure. - * @param[in] pSrc points to the block of input data. - * @param[in] pRef points to the block of reference data. - * @param[out] pOut points to the block of output data. - * @param[out] pErr points to the block of error data. - * @param[in] blockSize number of samples to process. - */ - void arm_lms_norm_q15( - arm_lms_norm_instance_q15 * S, - q15_t * pSrc, - q15_t * pRef, - q15_t * pOut, - q15_t * pErr, - uint32_t blockSize); - - - /** - * @brief Initialization function for Q15 normalized LMS filter. - * @param[in] S points to an instance of the Q15 normalized LMS filter structure. - * @param[in] numTaps number of filter coefficients. - * @param[in] pCoeffs points to coefficient buffer. - * @param[in] pState points to state buffer. - * @param[in] mu step size that controls filter coefficient updates. - * @param[in] blockSize number of samples to process. - * @param[in] postShift bit shift applied to coefficients. - */ - void arm_lms_norm_init_q15( - arm_lms_norm_instance_q15 * S, - uint16_t numTaps, - q15_t * pCoeffs, - q15_t * pState, - q15_t mu, - uint32_t blockSize, - uint8_t postShift); - - - /** - * @brief Correlation of floating-point sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1. - */ - void arm_correlate_f32( - float32_t * pSrcA, - uint32_t srcALen, - float32_t * pSrcB, - uint32_t srcBLen, - float32_t * pDst); - - - /** - * @brief Correlation of Q15 sequences - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1. - * @param[in] pScratch points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2. - */ - void arm_correlate_opt_q15( - q15_t * pSrcA, - uint32_t srcALen, - q15_t * pSrcB, - uint32_t srcBLen, - q15_t * pDst, - q15_t * pScratch); - - - /** - * @brief Correlation of Q15 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1. - */ - - void arm_correlate_q15( - q15_t * pSrcA, - uint32_t srcALen, - q15_t * pSrcB, - uint32_t srcBLen, - q15_t * pDst); - - - /** - * @brief Correlation of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1. - */ - - void arm_correlate_fast_q15( - q15_t * pSrcA, - uint32_t srcALen, - q15_t * pSrcB, - uint32_t srcBLen, - q15_t * pDst); - - - /** - * @brief Correlation of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1. - * @param[in] pScratch points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2. - */ - void arm_correlate_fast_opt_q15( - q15_t * pSrcA, - uint32_t srcALen, - q15_t * pSrcB, - uint32_t srcBLen, - q15_t * pDst, - q15_t * pScratch); - - - /** - * @brief Correlation of Q31 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1. - */ - void arm_correlate_q31( - q31_t * pSrcA, - uint32_t srcALen, - q31_t * pSrcB, - uint32_t srcBLen, - q31_t * pDst); - - - /** - * @brief Correlation of Q31 sequences (fast version) for Cortex-M3 and Cortex-M4 - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1. - */ - void arm_correlate_fast_q31( - q31_t * pSrcA, - uint32_t srcALen, - q31_t * pSrcB, - uint32_t srcBLen, - q31_t * pDst); - - - /** - * @brief Correlation of Q7 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1. - * @param[in] pScratch1 points to scratch buffer(of type q15_t) of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2. - * @param[in] pScratch2 points to scratch buffer (of type q15_t) of size min(srcALen, srcBLen). - */ - void arm_correlate_opt_q7( - q7_t * pSrcA, - uint32_t srcALen, - q7_t * pSrcB, - uint32_t srcBLen, - q7_t * pDst, - q15_t * pScratch1, - q15_t * pScratch2); - - - /** - * @brief Correlation of Q7 sequences. - * @param[in] pSrcA points to the first input sequence. - * @param[in] srcALen length of the first input sequence. - * @param[in] pSrcB points to the second input sequence. - * @param[in] srcBLen length of the second input sequence. - * @param[out] pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1. - */ - void arm_correlate_q7( - q7_t * pSrcA, - uint32_t srcALen, - q7_t * pSrcB, - uint32_t srcBLen, - q7_t * pDst); - - - /** - * @brief Instance structure for the floating-point sparse FIR filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of coefficients in the filter. */ - uint16_t stateIndex; /**< state buffer index. Points to the oldest sample in the state buffer. */ - float32_t *pState; /**< points to the state buffer array. The array is of length maxDelay+blockSize-1. */ - float32_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/ - uint16_t maxDelay; /**< maximum offset specified by the pTapDelay array. */ - int32_t *pTapDelay; /**< points to the array of delay values. The array is of length numTaps. */ - } arm_fir_sparse_instance_f32; - - /** - * @brief Instance structure for the Q31 sparse FIR filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of coefficients in the filter. */ - uint16_t stateIndex; /**< state buffer index. Points to the oldest sample in the state buffer. */ - q31_t *pState; /**< points to the state buffer array. The array is of length maxDelay+blockSize-1. */ - q31_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/ - uint16_t maxDelay; /**< maximum offset specified by the pTapDelay array. */ - int32_t *pTapDelay; /**< points to the array of delay values. The array is of length numTaps. */ - } arm_fir_sparse_instance_q31; - - /** - * @brief Instance structure for the Q15 sparse FIR filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of coefficients in the filter. */ - uint16_t stateIndex; /**< state buffer index. Points to the oldest sample in the state buffer. */ - q15_t *pState; /**< points to the state buffer array. The array is of length maxDelay+blockSize-1. */ - q15_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/ - uint16_t maxDelay; /**< maximum offset specified by the pTapDelay array. */ - int32_t *pTapDelay; /**< points to the array of delay values. The array is of length numTaps. */ - } arm_fir_sparse_instance_q15; - - /** - * @brief Instance structure for the Q7 sparse FIR filter. - */ - typedef struct - { - uint16_t numTaps; /**< number of coefficients in the filter. */ - uint16_t stateIndex; /**< state buffer index. Points to the oldest sample in the state buffer. */ - q7_t *pState; /**< points to the state buffer array. The array is of length maxDelay+blockSize-1. */ - q7_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/ - uint16_t maxDelay; /**< maximum offset specified by the pTapDelay array. */ - int32_t *pTapDelay; /**< points to the array of delay values. The array is of length numTaps. */ - } arm_fir_sparse_instance_q7; - - - /** - * @brief Processing function for the floating-point sparse FIR filter. - * @param[in] S points to an instance of the floating-point sparse FIR structure. - * @param[in] pSrc points to the block of input data. - * @param[out] pDst points to the block of output data - * @param[in] pScratchIn points to a temporary buffer of size blockSize. - * @param[in] blockSize number of input samples to process per call. - */ - void arm_fir_sparse_f32( - arm_fir_sparse_instance_f32 * S, - float32_t * pSrc, - float32_t * pDst, - float32_t * pScratchIn, - uint32_t blockSize); - - - /** - * @brief Initialization function for the floating-point sparse FIR filter. - * @param[in,out] S points to an instance of the floating-point sparse FIR structure. - * @param[in] numTaps number of nonzero coefficients in the filter. - * @param[in] pCoeffs points to the array of filter coefficients. - * @param[in] pState points to the state buffer. - * @param[in] pTapDelay points to the array of offset times. - * @param[in] maxDelay maximum offset time supported. - * @param[in] blockSize number of samples that will be processed per block. - */ - void arm_fir_sparse_init_f32( - arm_fir_sparse_instance_f32 * S, - uint16_t numTaps, - float32_t * pCoeffs, - float32_t * pState, - int32_t * pTapDelay, - uint16_t maxDelay, - uint32_t blockSize); - - - /** - * @brief Processing function for the Q31 sparse FIR filter. - * @param[in] S points to an instance of the Q31 sparse FIR structure. - * @param[in] pSrc points to the block of input data. - * @param[out] pDst points to the block of output data - * @param[in] pScratchIn points to a temporary buffer of size blockSize. - * @param[in] blockSize number of input samples to process per call. - */ - void arm_fir_sparse_q31( - arm_fir_sparse_instance_q31 * S, - q31_t * pSrc, - q31_t * pDst, - q31_t * pScratchIn, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q31 sparse FIR filter. - * @param[in,out] S points to an instance of the Q31 sparse FIR structure. - * @param[in] numTaps number of nonzero coefficients in the filter. - * @param[in] pCoeffs points to the array of filter coefficients. - * @param[in] pState points to the state buffer. - * @param[in] pTapDelay points to the array of offset times. - * @param[in] maxDelay maximum offset time supported. - * @param[in] blockSize number of samples that will be processed per block. - */ - void arm_fir_sparse_init_q31( - arm_fir_sparse_instance_q31 * S, - uint16_t numTaps, - q31_t * pCoeffs, - q31_t * pState, - int32_t * pTapDelay, - uint16_t maxDelay, - uint32_t blockSize); - - - /** - * @brief Processing function for the Q15 sparse FIR filter. - * @param[in] S points to an instance of the Q15 sparse FIR structure. - * @param[in] pSrc points to the block of input data. - * @param[out] pDst points to the block of output data - * @param[in] pScratchIn points to a temporary buffer of size blockSize. - * @param[in] pScratchOut points to a temporary buffer of size blockSize. - * @param[in] blockSize number of input samples to process per call. - */ - void arm_fir_sparse_q15( - arm_fir_sparse_instance_q15 * S, - q15_t * pSrc, - q15_t * pDst, - q15_t * pScratchIn, - q31_t * pScratchOut, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q15 sparse FIR filter. - * @param[in,out] S points to an instance of the Q15 sparse FIR structure. - * @param[in] numTaps number of nonzero coefficients in the filter. - * @param[in] pCoeffs points to the array of filter coefficients. - * @param[in] pState points to the state buffer. - * @param[in] pTapDelay points to the array of offset times. - * @param[in] maxDelay maximum offset time supported. - * @param[in] blockSize number of samples that will be processed per block. - */ - void arm_fir_sparse_init_q15( - arm_fir_sparse_instance_q15 * S, - uint16_t numTaps, - q15_t * pCoeffs, - q15_t * pState, - int32_t * pTapDelay, - uint16_t maxDelay, - uint32_t blockSize); - - - /** - * @brief Processing function for the Q7 sparse FIR filter. - * @param[in] S points to an instance of the Q7 sparse FIR structure. - * @param[in] pSrc points to the block of input data. - * @param[out] pDst points to the block of output data - * @param[in] pScratchIn points to a temporary buffer of size blockSize. - * @param[in] pScratchOut points to a temporary buffer of size blockSize. - * @param[in] blockSize number of input samples to process per call. - */ - void arm_fir_sparse_q7( - arm_fir_sparse_instance_q7 * S, - q7_t * pSrc, - q7_t * pDst, - q7_t * pScratchIn, - q31_t * pScratchOut, - uint32_t blockSize); - - - /** - * @brief Initialization function for the Q7 sparse FIR filter. - * @param[in,out] S points to an instance of the Q7 sparse FIR structure. - * @param[in] numTaps number of nonzero coefficients in the filter. - * @param[in] pCoeffs points to the array of filter coefficients. - * @param[in] pState points to the state buffer. - * @param[in] pTapDelay points to the array of offset times. - * @param[in] maxDelay maximum offset time supported. - * @param[in] blockSize number of samples that will be processed per block. - */ - void arm_fir_sparse_init_q7( - arm_fir_sparse_instance_q7 * S, - uint16_t numTaps, - q7_t * pCoeffs, - q7_t * pState, - int32_t * pTapDelay, - uint16_t maxDelay, - uint32_t blockSize); - - - /** - * @brief Floating-point sin_cos function. - * @param[in] theta input value in degrees - * @param[out] pSinVal points to the processed sine output. - * @param[out] pCosVal points to the processed cos output. - */ - void arm_sin_cos_f32( - float32_t theta, - float32_t * pSinVal, - float32_t * pCosVal); - - - /** - * @brief Q31 sin_cos function. - * @param[in] theta scaled input value in degrees - * @param[out] pSinVal points to the processed sine output. - * @param[out] pCosVal points to the processed cosine output. - */ - void arm_sin_cos_q31( - q31_t theta, - q31_t * pSinVal, - q31_t * pCosVal); - - - /** - * @brief Floating-point complex conjugate. - * @param[in] pSrc points to the input vector - * @param[out] pDst points to the output vector - * @param[in] numSamples number of complex samples in each vector - */ - void arm_cmplx_conj_f32( - float32_t * pSrc, - float32_t * pDst, - uint32_t numSamples); - - /** - * @brief Q31 complex conjugate. - * @param[in] pSrc points to the input vector - * @param[out] pDst points to the output vector - * @param[in] numSamples number of complex samples in each vector - */ - void arm_cmplx_conj_q31( - q31_t * pSrc, - q31_t * pDst, - uint32_t numSamples); - - - /** - * @brief Q15 complex conjugate. - * @param[in] pSrc points to the input vector - * @param[out] pDst points to the output vector - * @param[in] numSamples number of complex samples in each vector - */ - void arm_cmplx_conj_q15( - q15_t * pSrc, - q15_t * pDst, - uint32_t numSamples); - - - /** - * @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 - */ - void arm_cmplx_mag_squared_f32( - float32_t * pSrc, - float32_t * pDst, - uint32_t numSamples); - - - /** - * @brief Q31 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 - */ - void arm_cmplx_mag_squared_q31( - q31_t * pSrc, - q31_t * pDst, - uint32_t numSamples); - - - /** - * @brief Q15 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 - */ - void arm_cmplx_mag_squared_q15( - q15_t * pSrc, - q15_t * pDst, - uint32_t numSamples); - - - /** - * @ingroup groupController - */ - - /** - * @defgroup PID PID Motor Control - * - * A Proportional Integral Derivative (PID) controller is a generic feedback control - * loop mechanism widely used in industrial control systems. - * A PID controller is the most commonly used type of feedback controller. - * - * This set of functions implements (PID) controllers - * for Q15, Q31, and floating-point data types. The functions operate on a single sample - * of data and each call to the function returns a single processed value. - * <code>S</code> points to an instance of the PID control data structure. <code>in</code> - * is the input sample value. The functions return the output value. - * - * \par Algorithm: - * <pre> - * y[n] = y[n-1] + A0 * x[n] + A1 * x[n-1] + A2 * x[n-2] - * A0 = Kp + Ki + Kd - * A1 = (-Kp ) - (2 * Kd ) - * A2 = Kd </pre> - * - * \par - * where \c Kp is proportional constant, \c Ki is Integral constant and \c Kd is Derivative constant - * - * \par - * \image html PID.gif "Proportional Integral Derivative Controller" - * - * \par - * The PID controller calculates an "error" value as the difference between - * the measured output and the reference input. - * The controller attempts to minimize the error by adjusting the process control inputs. - * The proportional value determines the reaction to the current error, - * the integral value determines the reaction based on the sum of recent errors, - * and the derivative value determines the reaction based on the rate at which the error has been changing. - * - * \par Instance Structure - * The Gains A0, A1, A2 and state variables for a PID controller are stored together in an instance data structure. - * A separate instance structure must be defined for each PID Controller. - * There are separate instance structure declarations for each of the 3 supported data types. - * - * \par Reset Functions - * There is also an associated reset function for each data type which clears the state array. - * - * \par Initialization Functions - * There is also an associated initialization function for each data type. - * The initialization function performs the following operations: - * - Initializes the Gains A0, A1, A2 from Kp,Ki, Kd gains. - * - Zeros out the values in the state buffer. - * - * \par - * Instance structure cannot be placed into a const data section and it is recommended to use the initialization function. - * - * \par Fixed-Point Behavior - * Care must be taken when using the fixed-point versions of the PID Controller functions. - * In particular, the overflow and saturation behavior of the accumulator used in each function must be considered. - * Refer to the function specific documentation below for usage guidelines. - */ - - /** - * @addtogroup PID - * @{ - */ - - /** - * @brief Process function for the floating-point PID Control. - * @param[in,out] S is an instance of the floating-point PID Control structure - * @param[in] in input sample to process - * @return out processed output sample. - */ - static __INLINE float32_t arm_pid_f32( - arm_pid_instance_f32 * S, - float32_t in) - { - float32_t out; - - /* y[n] = y[n-1] + A0 * x[n] + A1 * x[n-1] + A2 * x[n-2] */ - out = (S->A0 * in) + - (S->A1 * S->state[0]) + (S->A2 * S->state[1]) + (S->state[2]); - - /* Update state */ - S->state[1] = S->state[0]; - S->state[0] = in; - S->state[2] = out; - - /* return to application */ - return (out); - - } - - /** - * @brief Process function for the Q31 PID Control. - * @param[in,out] S points to an instance of the Q31 PID Control structure - * @param[in] in input sample to process - * @return out processed output sample. - * - * <b>Scaling and Overflow Behavior:</b> - * \par - * The function is implemented using an internal 64-bit accumulator. - * The accumulator has a 2.62 format and maintains full precision of the intermediate multiplication results but provides only a single guard bit. - * Thus, if the accumulator result overflows it wraps around rather than clip. - * In order to avoid overflows completely the input signal must be scaled down by 2 bits as there are four additions. - * After all multiply-accumulates are performed, the 2.62 accumulator is truncated to 1.32 format and then saturated to 1.31 format. - */ - static __INLINE q31_t arm_pid_q31( - arm_pid_instance_q31 * S, - q31_t in) - { - q63_t acc; - q31_t out; - - /* acc = A0 * x[n] */ - acc = (q63_t) S->A0 * in; - - /* acc += A1 * x[n-1] */ - acc += (q63_t) S->A1 * S->state[0]; - - /* acc += A2 * x[n-2] */ - acc += (q63_t) S->A2 * S->state[1]; - - /* convert output to 1.31 format to add y[n-1] */ - out = (q31_t) (acc >> 31u); - - /* out += y[n-1] */ - out += S->state[2]; - - /* Update state */ - S->state[1] = S->state[0]; - S->state[0] = in; - S->state[2] = out; - - /* return to application */ - return (out); - } - - - /** - * @brief Process function for the Q15 PID Control. - * @param[in,out] S points to an instance of the Q15 PID Control structure - * @param[in] in input sample to process - * @return out processed output sample. - * - * <b>Scaling and Overflow Behavior:</b> - * \par - * The function is implemented using a 64-bit internal accumulator. - * Both Gains and state variables are represented in 1.15 format and multiplications yield a 2.30 result. - * The 2.30 intermediate results are accumulated in a 64-bit accumulator in 34.30 format. - * There is no risk of internal overflow with this approach and the full precision of intermediate multiplications is preserved. - * After all additions have been performed, the accumulator is truncated to 34.15 format by discarding low 15 bits. - * Lastly, the accumulator is saturated to yield a result in 1.15 format. - */ - static __INLINE q15_t arm_pid_q15( - arm_pid_instance_q15 * S, - q15_t in) - { - q63_t acc; - q15_t out; - -#ifndef ARM_MATH_CM0_FAMILY - __SIMD32_TYPE *vstate; - - /* Implementation of PID controller */ - - /* acc = A0 * x[n] */ - acc = (q31_t) __SMUAD((uint32_t)S->A0, (uint32_t)in); - - /* acc += A1 * x[n-1] + A2 * x[n-2] */ - vstate = __SIMD32_CONST(S->state); - acc = (q63_t)__SMLALD((uint32_t)S->A1, (uint32_t)*vstate, (uint64_t)acc); -#else - /* acc = A0 * x[n] */ - acc = ((q31_t) S->A0) * in; - - /* acc += A1 * x[n-1] + A2 * x[n-2] */ - acc += (q31_t) S->A1 * S->state[0]; - acc += (q31_t) S->A2 * S->state[1]; -#endif - - /* acc += y[n-1] */ - acc += (q31_t) S->state[2] << 15; - - /* saturate the output */ - out = (q15_t) (__SSAT((acc >> 15), 16)); - - /* Update state */ - S->state[1] = S->state[0]; - S->state[0] = in; - S->state[2] = out; - - /* return to application */ - return (out); - } - - /** - * @} end of PID group - */ - - - /** - * @brief Floating-point matrix inverse. - * @param[in] src points to the instance of the input floating-point matrix structure. - * @param[out] dst points to the instance of the output floating-point matrix structure. - * @return The function returns ARM_MATH_SIZE_MISMATCH, if the dimensions do not match. - * If the input matrix is singular (does not have an inverse), then the algorithm terminates and returns error status ARM_MATH_SINGULAR. - */ - arm_status arm_mat_inverse_f32( - const arm_matrix_instance_f32 * src, - arm_matrix_instance_f32 * dst); - - - /** - * @brief Floating-point matrix inverse. - * @param[in] src points to the instance of the input floating-point matrix structure. - * @param[out] dst points to the instance of the output floating-point matrix structure. - * @return The function returns ARM_MATH_SIZE_MISMATCH, if the dimensions do not match. - * If the input matrix is singular (does not have an inverse), then the algorithm terminates and returns error status ARM_MATH_SINGULAR. - */ - arm_status arm_mat_inverse_f64( - const arm_matrix_instance_f64 * src, - arm_matrix_instance_f64 * dst); - - - - /** - * @ingroup groupController - */ - - /** - * @defgroup clarke Vector Clarke Transform - * Forward Clarke transform converts the instantaneous stator phases into a two-coordinate time invariant vector. - * Generally the Clarke transform uses three-phase currents <code>Ia, Ib and Ic</code> to calculate currents - * in the two-phase orthogonal stator axis <code>Ialpha</code> and <code>Ibeta</code>. - * When <code>Ialpha</code> is superposed with <code>Ia</code> as shown in the figure below - * \image html clarke.gif Stator current space vector and its components in (a,b). - * and <code>Ia + Ib + Ic = 0</code>, in this condition <code>Ialpha</code> and <code>Ibeta</code> - * can be calculated using only <code>Ia</code> and <code>Ib</code>. - * - * The function operates on a single sample of data and each call to the function returns the processed output. - * The library provides separate functions for Q31 and floating-point data types. - * \par Algorithm - * \image html clarkeFormula.gif - * where <code>Ia</code> and <code>Ib</code> are the instantaneous stator phases and - * <code>pIalpha</code> and <code>pIbeta</code> are the two coordinates of time invariant vector. - * \par Fixed-Point Behavior - * Care must be taken when using the Q31 version of the Clarke transform. - * In particular, the overflow and saturation behavior of the accumulator used must be considered. - * Refer to the function specific documentation below for usage guidelines. - */ - - /** - * @addtogroup clarke - * @{ - */ - - /** - * - * @brief Floating-point Clarke transform - * @param[in] Ia input three-phase coordinate <code>a</code> - * @param[in] Ib input three-phase coordinate <code>b</code> - * @param[out] pIalpha points to output two-phase orthogonal vector axis alpha - * @param[out] pIbeta points to output two-phase orthogonal vector axis beta - */ - static __INLINE void arm_clarke_f32( - float32_t Ia, - float32_t Ib, - float32_t * pIalpha, - float32_t * pIbeta) - { - /* Calculate pIalpha using the equation, pIalpha = Ia */ - *pIalpha = Ia; - - /* Calculate pIbeta using the equation, pIbeta = (1/sqrt(3)) * Ia + (2/sqrt(3)) * Ib */ - *pIbeta = ((float32_t) 0.57735026919 * Ia + (float32_t) 1.15470053838 * Ib); - } - - - /** - * @brief Clarke transform for Q31 version - * @param[in] Ia input three-phase coordinate <code>a</code> - * @param[in] Ib input three-phase coordinate <code>b</code> - * @param[out] pIalpha points to output two-phase orthogonal vector axis alpha - * @param[out] pIbeta points to output two-phase orthogonal vector axis beta - * - * <b>Scaling and Overflow Behavior:</b> - * \par - * The function is implemented using an internal 32-bit accumulator. - * The accumulator maintains 1.31 format by truncating lower 31 bits of the intermediate multiplication in 2.62 format. - * There is saturation on the addition, hence there is no risk of overflow. - */ - static __INLINE void arm_clarke_q31( - q31_t Ia, - q31_t Ib, - q31_t * pIalpha, - q31_t * pIbeta) - { - q31_t product1, product2; /* Temporary variables used to store intermediate results */ - - /* Calculating pIalpha from Ia by equation pIalpha = Ia */ - *pIalpha = Ia; - - /* Intermediate product is calculated by (1/(sqrt(3)) * Ia) */ - product1 = (q31_t) (((q63_t) Ia * 0x24F34E8B) >> 30); - - /* Intermediate product is calculated by (2/sqrt(3) * Ib) */ - product2 = (q31_t) (((q63_t) Ib * 0x49E69D16) >> 30); - - /* pIbeta is calculated by adding the intermediate products */ - *pIbeta = __QADD(product1, product2); - } - - /** - * @} end of clarke group - */ - - /** - * @brief Converts the elements of the Q7 vector to Q31 vector. - * @param[in] pSrc input pointer - * @param[out] pDst output pointer - * @param[in] blockSize number of samples to process - */ - void arm_q7_to_q31( - q7_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - - /** - * @ingroup groupController - */ - - /** - * @defgroup inv_clarke Vector Inverse Clarke Transform - * Inverse Clarke transform converts the two-coordinate time invariant vector into instantaneous stator phases. - * - * The function operates on a single sample of data and each call to the function returns the processed output. - * The library provides separate functions for Q31 and floating-point data types. - * \par Algorithm - * \image html clarkeInvFormula.gif - * where <code>pIa</code> and <code>pIb</code> are the instantaneous stator phases and - * <code>Ialpha</code> and <code>Ibeta</code> are the two coordinates of time invariant vector. - * \par Fixed-Point Behavior - * Care must be taken when using the Q31 version of the Clarke transform. - * In particular, the overflow and saturation behavior of the accumulator used must be considered. - * Refer to the function specific documentation below for usage guidelines. - */ - - /** - * @addtogroup inv_clarke - * @{ - */ - - /** - * @brief Floating-point Inverse Clarke transform - * @param[in] Ialpha input two-phase orthogonal vector axis alpha - * @param[in] Ibeta input two-phase orthogonal vector axis beta - * @param[out] pIa points to output three-phase coordinate <code>a</code> - * @param[out] pIb points to output three-phase coordinate <code>b</code> - */ - static __INLINE void arm_inv_clarke_f32( - float32_t Ialpha, - float32_t Ibeta, - float32_t * pIa, - float32_t * pIb) - { - /* Calculating pIa from Ialpha by equation pIa = Ialpha */ - *pIa = Ialpha; - - /* Calculating pIb from Ialpha and Ibeta by equation pIb = -(1/2) * Ialpha + (sqrt(3)/2) * Ibeta */ - *pIb = -0.5f * Ialpha + 0.8660254039f * Ibeta; - } - - - /** - * @brief Inverse Clarke transform for Q31 version - * @param[in] Ialpha input two-phase orthogonal vector axis alpha - * @param[in] Ibeta input two-phase orthogonal vector axis beta - * @param[out] pIa points to output three-phase coordinate <code>a</code> - * @param[out] pIb points to output three-phase coordinate <code>b</code> - * - * <b>Scaling and Overflow Behavior:</b> - * \par - * The function is implemented using an internal 32-bit accumulator. - * The accumulator maintains 1.31 format by truncating lower 31 bits of the intermediate multiplication in 2.62 format. - * There is saturation on the subtraction, hence there is no risk of overflow. - */ - static __INLINE void arm_inv_clarke_q31( - q31_t Ialpha, - q31_t Ibeta, - q31_t * pIa, - q31_t * pIb) - { - q31_t product1, product2; /* Temporary variables used to store intermediate results */ - - /* Calculating pIa from Ialpha by equation pIa = Ialpha */ - *pIa = Ialpha; - - /* Intermediate product is calculated by (1/(2*sqrt(3)) * Ia) */ - product1 = (q31_t) (((q63_t) (Ialpha) * (0x40000000)) >> 31); - - /* Intermediate product is calculated by (1/sqrt(3) * pIb) */ - product2 = (q31_t) (((q63_t) (Ibeta) * (0x6ED9EBA1)) >> 31); - - /* pIb is calculated by subtracting the products */ - *pIb = __QSUB(product2, product1); - } - - /** - * @} end of inv_clarke group - */ - - /** - * @brief Converts the elements of the Q7 vector to Q15 vector. - * @param[in] pSrc input pointer - * @param[out] pDst output pointer - * @param[in] blockSize number of samples to process - */ - void arm_q7_to_q15( - q7_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - - /** - * @ingroup groupController - */ - - /** - * @defgroup park Vector Park Transform - * - * Forward Park transform converts the input two-coordinate vector to flux and torque components. - * The Park transform can be used to realize the transformation of the <code>Ialpha</code> and the <code>Ibeta</code> currents - * from the stationary to the moving reference frame and control the spatial relationship between - * the stator vector current and rotor flux vector. - * If we consider the d axis aligned with the rotor flux, the diagram below shows the - * current vector and the relationship from the two reference frames: - * \image html park.gif "Stator current space vector and its component in (a,b) and in the d,q rotating reference frame" - * - * The function operates on a single sample of data and each call to the function returns the processed output. - * The library provides separate functions for Q31 and floating-point data types. - * \par Algorithm - * \image html parkFormula.gif - * where <code>Ialpha</code> and <code>Ibeta</code> are the stator vector components, - * <code>pId</code> and <code>pIq</code> are rotor vector components and <code>cosVal</code> and <code>sinVal</code> are the - * cosine and sine values of theta (rotor flux position). - * \par Fixed-Point Behavior - * Care must be taken when using the Q31 version of the Park transform. - * In particular, the overflow and saturation behavior of the accumulator used must be considered. - * Refer to the function specific documentation below for usage guidelines. - */ - - /** - * @addtogroup park - * @{ - */ - - /** - * @brief Floating-point Park transform - * @param[in] Ialpha input two-phase vector coordinate alpha - * @param[in] Ibeta input two-phase vector coordinate beta - * @param[out] pId points to output rotor reference frame d - * @param[out] pIq points to output rotor reference frame q - * @param[in] sinVal sine value of rotation angle theta - * @param[in] cosVal cosine value of rotation angle theta - * - * The function implements the forward Park transform. - * - */ - static __INLINE void arm_park_f32( - float32_t Ialpha, - float32_t Ibeta, - float32_t * pId, - float32_t * pIq, - float32_t sinVal, - float32_t cosVal) - { - /* Calculate pId using the equation, pId = Ialpha * cosVal + Ibeta * sinVal */ - *pId = Ialpha * cosVal + Ibeta * sinVal; - - /* Calculate pIq using the equation, pIq = - Ialpha * sinVal + Ibeta * cosVal */ - *pIq = -Ialpha * sinVal + Ibeta * cosVal; - } - - - /** - * @brief Park transform for Q31 version - * @param[in] Ialpha input two-phase vector coordinate alpha - * @param[in] Ibeta input two-phase vector coordinate beta - * @param[out] pId points to output rotor reference frame d - * @param[out] pIq points to output rotor reference frame q - * @param[in] sinVal sine value of rotation angle theta - * @param[in] cosVal cosine value of rotation angle theta - * - * <b>Scaling and Overflow Behavior:</b> - * \par - * The function is implemented using an internal 32-bit accumulator. - * The accumulator maintains 1.31 format by truncating lower 31 bits of the intermediate multiplication in 2.62 format. - * There is saturation on the addition and subtraction, hence there is no risk of overflow. - */ - static __INLINE void arm_park_q31( - q31_t Ialpha, - q31_t Ibeta, - q31_t * pId, - q31_t * pIq, - q31_t sinVal, - q31_t cosVal) - { - q31_t product1, product2; /* Temporary variables used to store intermediate results */ - q31_t product3, product4; /* Temporary variables used to store intermediate results */ - - /* Intermediate product is calculated by (Ialpha * cosVal) */ - product1 = (q31_t) (((q63_t) (Ialpha) * (cosVal)) >> 31); - - /* Intermediate product is calculated by (Ibeta * sinVal) */ - product2 = (q31_t) (((q63_t) (Ibeta) * (sinVal)) >> 31); - - - /* Intermediate product is calculated by (Ialpha * sinVal) */ - product3 = (q31_t) (((q63_t) (Ialpha) * (sinVal)) >> 31); - - /* Intermediate product is calculated by (Ibeta * cosVal) */ - product4 = (q31_t) (((q63_t) (Ibeta) * (cosVal)) >> 31); - - /* Calculate pId by adding the two intermediate products 1 and 2 */ - *pId = __QADD(product1, product2); - - /* Calculate pIq by subtracting the two intermediate products 3 from 4 */ - *pIq = __QSUB(product4, product3); - } - - /** - * @} end of park group - */ - - /** - * @brief Converts the elements of the Q7 vector to floating-point vector. - * @param[in] pSrc is input pointer - * @param[out] pDst is output pointer - * @param[in] blockSize is the number of samples to process - */ - void arm_q7_to_float( - q7_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @ingroup groupController - */ - - /** - * @defgroup inv_park Vector Inverse Park transform - * Inverse Park transform converts the input flux and torque components to two-coordinate vector. - * - * The function operates on a single sample of data and each call to the function returns the processed output. - * The library provides separate functions for Q31 and floating-point data types. - * \par Algorithm - * \image html parkInvFormula.gif - * where <code>pIalpha</code> and <code>pIbeta</code> are the stator vector components, - * <code>Id</code> and <code>Iq</code> are rotor vector components and <code>cosVal</code> and <code>sinVal</code> are the - * cosine and sine values of theta (rotor flux position). - * \par Fixed-Point Behavior - * Care must be taken when using the Q31 version of the Park transform. - * In particular, the overflow and saturation behavior of the accumulator used must be considered. - * Refer to the function specific documentation below for usage guidelines. - */ - - /** - * @addtogroup inv_park - * @{ - */ - - /** - * @brief Floating-point Inverse Park transform - * @param[in] Id input coordinate of rotor reference frame d - * @param[in] Iq input coordinate of rotor reference frame q - * @param[out] pIalpha points to output two-phase orthogonal vector axis alpha - * @param[out] pIbeta points to output two-phase orthogonal vector axis beta - * @param[in] sinVal sine value of rotation angle theta - * @param[in] cosVal cosine value of rotation angle theta - */ - static __INLINE void arm_inv_park_f32( - float32_t Id, - float32_t Iq, - float32_t * pIalpha, - float32_t * pIbeta, - float32_t sinVal, - float32_t cosVal) - { - /* Calculate pIalpha using the equation, pIalpha = Id * cosVal - Iq * sinVal */ - *pIalpha = Id * cosVal - Iq * sinVal; - - /* Calculate pIbeta using the equation, pIbeta = Id * sinVal + Iq * cosVal */ - *pIbeta = Id * sinVal + Iq * cosVal; - } - - - /** - * @brief Inverse Park transform for Q31 version - * @param[in] Id input coordinate of rotor reference frame d - * @param[in] Iq input coordinate of rotor reference frame q - * @param[out] pIalpha points to output two-phase orthogonal vector axis alpha - * @param[out] pIbeta points to output two-phase orthogonal vector axis beta - * @param[in] sinVal sine value of rotation angle theta - * @param[in] cosVal cosine value of rotation angle theta - * - * <b>Scaling and Overflow Behavior:</b> - * \par - * The function is implemented using an internal 32-bit accumulator. - * The accumulator maintains 1.31 format by truncating lower 31 bits of the intermediate multiplication in 2.62 format. - * There is saturation on the addition, hence there is no risk of overflow. - */ - static __INLINE void arm_inv_park_q31( - q31_t Id, - q31_t Iq, - q31_t * pIalpha, - q31_t * pIbeta, - q31_t sinVal, - q31_t cosVal) - { - q31_t product1, product2; /* Temporary variables used to store intermediate results */ - q31_t product3, product4; /* Temporary variables used to store intermediate results */ - - /* Intermediate product is calculated by (Id * cosVal) */ - product1 = (q31_t) (((q63_t) (Id) * (cosVal)) >> 31); - - /* Intermediate product is calculated by (Iq * sinVal) */ - product2 = (q31_t) (((q63_t) (Iq) * (sinVal)) >> 31); - - - /* Intermediate product is calculated by (Id * sinVal) */ - product3 = (q31_t) (((q63_t) (Id) * (sinVal)) >> 31); - - /* Intermediate product is calculated by (Iq * cosVal) */ - product4 = (q31_t) (((q63_t) (Iq) * (cosVal)) >> 31); - - /* Calculate pIalpha by using the two intermediate products 1 and 2 */ - *pIalpha = __QSUB(product1, product2); - - /* Calculate pIbeta by using the two intermediate products 3 and 4 */ - *pIbeta = __QADD(product4, product3); - } - - /** - * @} end of Inverse park group - */ - - - /** - * @brief Converts the elements of the Q31 vector to floating-point vector. - * @param[in] pSrc is input pointer - * @param[out] pDst is output pointer - * @param[in] blockSize is the number of samples to process - */ - void arm_q31_to_float( - q31_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - /** - * @ingroup groupInterpolation - */ - - /** - * @defgroup LinearInterpolate Linear Interpolation - * - * Linear interpolation is a method of curve fitting using linear polynomials. - * Linear interpolation works by effectively drawing a straight line between two neighboring samples and returning the appropriate point along that line - * - * \par - * \image html LinearInterp.gif "Linear interpolation" - * - * \par - * A Linear Interpolate function calculates an output value(y), for the input(x) - * using linear interpolation of the input values x0, x1( nearest input values) and the output values y0 and y1(nearest output values) - * - * \par Algorithm: - * <pre> - * y = y0 + (x - x0) * ((y1 - y0)/(x1-x0)) - * where x0, x1 are nearest values of input x - * y0, y1 are nearest values to output y - * </pre> - * - * \par - * This set of functions implements Linear interpolation process - * for Q7, Q15, Q31, and floating-point data types. The functions operate on a single - * sample of data and each call to the function returns a single processed value. - * <code>S</code> points to an instance of the Linear Interpolate function data structure. - * <code>x</code> is the input sample value. The functions returns the output value. - * - * \par - * if x is outside of the table boundary, Linear interpolation returns first value of the table - * if x is below input range and returns last value of table if x is above range. - */ - - /** - * @addtogroup LinearInterpolate - * @{ - */ - - /** - * @brief Process function for the floating-point Linear Interpolation Function. - * @param[in,out] S is an instance of the floating-point Linear Interpolation structure - * @param[in] x input sample to process - * @return y processed output sample. - * - */ - static __INLINE float32_t arm_linear_interp_f32( - arm_linear_interp_instance_f32 * S, - float32_t x) - { - float32_t y; - float32_t x0, x1; /* Nearest input values */ - float32_t y0, y1; /* Nearest output values */ - float32_t xSpacing = S->xSpacing; /* spacing between input values */ - int32_t i; /* Index variable */ - float32_t *pYData = S->pYData; /* pointer to output table */ - - /* Calculation of index */ - i = (int32_t) ((x - S->x1) / xSpacing); - - if(i < 0) - { - /* Iniatilize output for below specified range as least output value of table */ - y = pYData[0]; - } - else if((uint32_t)i >= S->nValues) - { - /* Iniatilize output for above specified range as last output value of table */ - y = pYData[S->nValues - 1]; - } - else - { - /* Calculation of nearest input values */ - x0 = S->x1 + i * xSpacing; - x1 = S->x1 + (i + 1) * xSpacing; - - /* Read of nearest output values */ - y0 = pYData[i]; - y1 = pYData[i + 1]; - - /* Calculation of output */ - y = y0 + (x - x0) * ((y1 - y0) / (x1 - x0)); - - } - - /* returns output value */ - return (y); - } - - - /** - * - * @brief Process function for the Q31 Linear Interpolation Function. - * @param[in] pYData pointer to Q31 Linear Interpolation table - * @param[in] x input sample to process - * @param[in] nValues number of table values - * @return y processed output sample. - * - * \par - * Input sample <code>x</code> is in 12.20 format which contains 12 bits for table index and 20 bits for fractional part. - * This function can support maximum of table size 2^12. - * - */ - static __INLINE q31_t arm_linear_interp_q31( - q31_t * pYData, - q31_t x, - uint32_t nValues) - { - q31_t y; /* output */ - q31_t y0, y1; /* Nearest output values */ - q31_t fract; /* fractional part */ - int32_t index; /* Index to read nearest output values */ - - /* Input is in 12.20 format */ - /* 12 bits for the table index */ - /* Index value calculation */ - index = ((x & (q31_t)0xFFF00000) >> 20); - - if(index >= (int32_t)(nValues - 1)) - { - return (pYData[nValues - 1]); - } - else if(index < 0) - { - return (pYData[0]); - } - else - { - /* 20 bits for the fractional part */ - /* shift left by 11 to keep fract in 1.31 format */ - fract = (x & 0x000FFFFF) << 11; - - /* Read two nearest output values from the index in 1.31(q31) format */ - y0 = pYData[index]; - y1 = pYData[index + 1]; - - /* Calculation of y0 * (1-fract) and y is in 2.30 format */ - y = ((q31_t) ((q63_t) y0 * (0x7FFFFFFF - fract) >> 32)); - - /* Calculation of y0 * (1-fract) + y1 *fract and y is in 2.30 format */ - y += ((q31_t) (((q63_t) y1 * fract) >> 32)); - - /* Convert y to 1.31 format */ - return (y << 1u); - } - } - - - /** - * - * @brief Process function for the Q15 Linear Interpolation Function. - * @param[in] pYData pointer to Q15 Linear Interpolation table - * @param[in] x input sample to process - * @param[in] nValues number of table values - * @return y processed output sample. - * - * \par - * Input sample <code>x</code> is in 12.20 format which contains 12 bits for table index and 20 bits for fractional part. - * This function can support maximum of table size 2^12. - * - */ - static __INLINE q15_t arm_linear_interp_q15( - q15_t * pYData, - q31_t x, - uint32_t nValues) - { - q63_t y; /* output */ - q15_t y0, y1; /* Nearest output values */ - q31_t fract; /* fractional part */ - int32_t index; /* Index to read nearest output values */ - - /* Input is in 12.20 format */ - /* 12 bits for the table index */ - /* Index value calculation */ - index = ((x & (int32_t)0xFFF00000) >> 20); - - if(index >= (int32_t)(nValues - 1)) - { - return (pYData[nValues - 1]); - } - else if(index < 0) - { - return (pYData[0]); - } - else - { - /* 20 bits for the fractional part */ - /* fract is in 12.20 format */ - fract = (x & 0x000FFFFF); - - /* Read two nearest output values from the index */ - y0 = pYData[index]; - y1 = pYData[index + 1]; - - /* Calculation of y0 * (1-fract) and y is in 13.35 format */ - y = ((q63_t) y0 * (0xFFFFF - fract)); - - /* Calculation of (y0 * (1-fract) + y1 * fract) and y is in 13.35 format */ - y += ((q63_t) y1 * (fract)); - - /* convert y to 1.15 format */ - return (q15_t) (y >> 20); - } - } - - - /** - * - * @brief Process function for the Q7 Linear Interpolation Function. - * @param[in] pYData pointer to Q7 Linear Interpolation table - * @param[in] x input sample to process - * @param[in] nValues number of table values - * @return y processed output sample. - * - * \par - * Input sample <code>x</code> is in 12.20 format which contains 12 bits for table index and 20 bits for fractional part. - * This function can support maximum of table size 2^12. - */ - static __INLINE q7_t arm_linear_interp_q7( - q7_t * pYData, - q31_t x, - uint32_t nValues) - { - q31_t y; /* output */ - q7_t y0, y1; /* Nearest output values */ - q31_t fract; /* fractional part */ - uint32_t index; /* Index to read nearest output values */ - - /* Input is in 12.20 format */ - /* 12 bits for the table index */ - /* Index value calculation */ - if (x < 0) - { - return (pYData[0]); - } - index = (x >> 20) & 0xfff; - - if(index >= (nValues - 1)) - { - return (pYData[nValues - 1]); - } - else - { - /* 20 bits for the fractional part */ - /* fract is in 12.20 format */ - fract = (x & 0x000FFFFF); - - /* Read two nearest output values from the index and are in 1.7(q7) format */ - y0 = pYData[index]; - y1 = pYData[index + 1]; - - /* Calculation of y0 * (1-fract ) and y is in 13.27(q27) format */ - y = ((y0 * (0xFFFFF - fract))); - - /* Calculation of y1 * fract + y0 * (1-fract) and y is in 13.27(q27) format */ - y += (y1 * fract); - - /* convert y to 1.7(q7) format */ - return (q7_t) (y >> 20); - } - } - - /** - * @} end of LinearInterpolate group - */ - - /** - * @brief Fast approximation to the trigonometric sine function for floating-point data. - * @param[in] x input value in radians. - * @return sin(x). - */ - float32_t arm_sin_f32( - float32_t x); - - - /** - * @brief Fast approximation to the trigonometric sine function for Q31 data. - * @param[in] x Scaled input value in radians. - * @return sin(x). - */ - q31_t arm_sin_q31( - q31_t x); - - - /** - * @brief Fast approximation to the trigonometric sine function for Q15 data. - * @param[in] x Scaled input value in radians. - * @return sin(x). - */ - q15_t arm_sin_q15( - q15_t x); - - - /** - * @brief Fast approximation to the trigonometric cosine function for floating-point data. - * @param[in] x input value in radians. - * @return cos(x). - */ - float32_t arm_cos_f32( - float32_t x); - - - /** - * @brief Fast approximation to the trigonometric cosine function for Q31 data. - * @param[in] x Scaled input value in radians. - * @return cos(x). - */ - q31_t arm_cos_q31( - q31_t x); - - - /** - * @brief Fast approximation to the trigonometric cosine function for Q15 data. - * @param[in] x Scaled input value in radians. - * @return cos(x). - */ - q15_t arm_cos_q15( - q15_t x); - - - /** - * @ingroup groupFastMath - */ - - - /** - * @defgroup SQRT Square Root - * - * Computes the square root of a number. - * There are separate functions for Q15, Q31, and floating-point data types. - * The square root function is computed using the Newton-Raphson algorithm. - * This is an iterative algorithm of the form: - * <pre> - * x1 = x0 - f(x0)/f'(x0) - * </pre> - * where <code>x1</code> is the current estimate, - * <code>x0</code> is the previous estimate, and - * <code>f'(x0)</code> is the derivative of <code>f()</code> evaluated at <code>x0</code>. - * For the square root function, the algorithm reduces to: - * <pre> - * x0 = in/2 [initial guess] - * x1 = 1/2 * ( x0 + in / x0) [each iteration] - * </pre> - */ - - - /** - * @addtogroup SQRT - * @{ - */ - - /** - * @brief Floating-point square root function. - * @param[in] in input value. - * @param[out] pOut square root of input value. - * @return The function returns ARM_MATH_SUCCESS if input value is positive value or ARM_MATH_ARGUMENT_ERROR if - * <code>in</code> is negative value and returns zero output for negative values. - */ - static __INLINE arm_status arm_sqrt_f32( - float32_t in, - float32_t * pOut) - { - if(in >= 0.0f) - { - -#if (__FPU_USED == 1) && defined ( __CC_ARM ) - *pOut = __sqrtf(in); -#elif (__FPU_USED == 1) && (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050)) - *pOut = __builtin_sqrtf(in); -#elif (__FPU_USED == 1) && defined(__GNUC__) - *pOut = __builtin_sqrtf(in); -#elif (__FPU_USED == 1) && defined ( __ICCARM__ ) && (__VER__ >= 6040000) - __ASM("VSQRT.F32 %0,%1" : "=t"(*pOut) : "t"(in)); -#else - *pOut = sqrtf(in); -#endif - - return (ARM_MATH_SUCCESS); - } - else - { - *pOut = 0.0f; - return (ARM_MATH_ARGUMENT_ERROR); - } - } - - - /** - * @brief Q31 square root function. - * @param[in] in input value. The range of the input value is [0 +1) or 0x00000000 to 0x7FFFFFFF. - * @param[out] pOut square root of input value. - * @return The function returns ARM_MATH_SUCCESS if input value is positive value or ARM_MATH_ARGUMENT_ERROR if - * <code>in</code> is negative value and returns zero output for negative values. - */ - arm_status arm_sqrt_q31( - q31_t in, - q31_t * pOut); - - - /** - * @brief Q15 square root function. - * @param[in] in input value. The range of the input value is [0 +1) or 0x0000 to 0x7FFF. - * @param[out] pOut square root of input value. - * @return The function returns ARM_MATH_SUCCESS if input value is positive value or ARM_MATH_ARGUMENT_ERROR if - * <code>in</code> is negative value and returns zero output for negative values. - */ - arm_status arm_sqrt_q15( - q15_t in, - q15_t * pOut); - - /** - * @} end of SQRT group - */ - - - /** - * @brief floating-point Circular write function. - */ - static __INLINE void arm_circularWrite_f32( - int32_t * circBuffer, - int32_t L, - uint16_t * writeOffset, - int32_t bufferInc, - const int32_t * src, - int32_t srcInc, - uint32_t blockSize) - { - uint32_t i = 0u; - int32_t wOffset; - - /* Copy the value of Index pointer that points - * to the current location where the input samples to be copied */ - wOffset = *writeOffset; - - /* Loop over the blockSize */ - i = blockSize; - - while(i > 0u) - { - /* copy the input sample to the circular buffer */ - circBuffer[wOffset] = *src; - - /* Update the input pointer */ - src += srcInc; - - /* Circularly update wOffset. Watch out for positive and negative value */ - wOffset += bufferInc; - if(wOffset >= L) - wOffset -= L; - - /* Decrement the loop counter */ - i--; - } - - /* Update the index pointer */ - *writeOffset = (uint16_t)wOffset; - } - - - - /** - * @brief floating-point Circular Read function. - */ - static __INLINE void arm_circularRead_f32( - int32_t * circBuffer, - int32_t L, - int32_t * readOffset, - int32_t bufferInc, - int32_t * dst, - int32_t * dst_base, - int32_t dst_length, - int32_t dstInc, - uint32_t blockSize) - { - uint32_t i = 0u; - int32_t rOffset, dst_end; - - /* Copy the value of Index pointer that points - * to the current location from where the input samples to be read */ - rOffset = *readOffset; - dst_end = (int32_t) (dst_base + dst_length); - - /* Loop over the blockSize */ - i = blockSize; - - while(i > 0u) - { - /* copy the sample from the circular buffer to the destination buffer */ - *dst = circBuffer[rOffset]; - - /* Update the input pointer */ - dst += dstInc; - - if(dst == (int32_t *) dst_end) - { - dst = dst_base; - } - - /* Circularly update rOffset. Watch out for positive and negative value */ - rOffset += bufferInc; - - if(rOffset >= L) - { - rOffset -= L; - } - - /* Decrement the loop counter */ - i--; - } - - /* Update the index pointer */ - *readOffset = rOffset; - } - - - /** - * @brief Q15 Circular write function. - */ - static __INLINE void arm_circularWrite_q15( - q15_t * circBuffer, - int32_t L, - uint16_t * writeOffset, - int32_t bufferInc, - const q15_t * src, - int32_t srcInc, - uint32_t blockSize) - { - uint32_t i = 0u; - int32_t wOffset; - - /* Copy the value of Index pointer that points - * to the current location where the input samples to be copied */ - wOffset = *writeOffset; - - /* Loop over the blockSize */ - i = blockSize; - - while(i > 0u) - { - /* copy the input sample to the circular buffer */ - circBuffer[wOffset] = *src; - - /* Update the input pointer */ - src += srcInc; - - /* Circularly update wOffset. Watch out for positive and negative value */ - wOffset += bufferInc; - if(wOffset >= L) - wOffset -= L; - - /* Decrement the loop counter */ - i--; - } - - /* Update the index pointer */ - *writeOffset = (uint16_t)wOffset; - } - - - /** - * @brief Q15 Circular Read function. - */ - static __INLINE void arm_circularRead_q15( - q15_t * circBuffer, - int32_t L, - int32_t * readOffset, - int32_t bufferInc, - q15_t * dst, - q15_t * dst_base, - int32_t dst_length, - int32_t dstInc, - uint32_t blockSize) - { - uint32_t i = 0; - int32_t rOffset, dst_end; - - /* Copy the value of Index pointer that points - * to the current location from where the input samples to be read */ - rOffset = *readOffset; - - dst_end = (int32_t) (dst_base + dst_length); - - /* Loop over the blockSize */ - i = blockSize; - - while(i > 0u) - { - /* copy the sample from the circular buffer to the destination buffer */ - *dst = circBuffer[rOffset]; - - /* Update the input pointer */ - dst += dstInc; - - if(dst == (q15_t *) dst_end) - { - dst = dst_base; - } - - /* Circularly update wOffset. Watch out for positive and negative value */ - rOffset += bufferInc; - - if(rOffset >= L) - { - rOffset -= L; - } - - /* Decrement the loop counter */ - i--; - } - - /* Update the index pointer */ - *readOffset = rOffset; - } - - - /** - * @brief Q7 Circular write function. - */ - static __INLINE void arm_circularWrite_q7( - q7_t * circBuffer, - int32_t L, - uint16_t * writeOffset, - int32_t bufferInc, - const q7_t * src, - int32_t srcInc, - uint32_t blockSize) - { - uint32_t i = 0u; - int32_t wOffset; - - /* Copy the value of Index pointer that points - * to the current location where the input samples to be copied */ - wOffset = *writeOffset; - - /* Loop over the blockSize */ - i = blockSize; - - while(i > 0u) - { - /* copy the input sample to the circular buffer */ - circBuffer[wOffset] = *src; - - /* Update the input pointer */ - src += srcInc; - - /* Circularly update wOffset. Watch out for positive and negative value */ - wOffset += bufferInc; - if(wOffset >= L) - wOffset -= L; - - /* Decrement the loop counter */ - i--; - } - - /* Update the index pointer */ - *writeOffset = (uint16_t)wOffset; - } - - - /** - * @brief Q7 Circular Read function. - */ - static __INLINE void arm_circularRead_q7( - q7_t * circBuffer, - int32_t L, - int32_t * readOffset, - int32_t bufferInc, - q7_t * dst, - q7_t * dst_base, - int32_t dst_length, - int32_t dstInc, - uint32_t blockSize) - { - uint32_t i = 0; - int32_t rOffset, dst_end; - - /* Copy the value of Index pointer that points - * to the current location from where the input samples to be read */ - rOffset = *readOffset; - - dst_end = (int32_t) (dst_base + dst_length); - - /* Loop over the blockSize */ - i = blockSize; - - while(i > 0u) - { - /* copy the sample from the circular buffer to the destination buffer */ - *dst = circBuffer[rOffset]; - - /* Update the input pointer */ - dst += dstInc; - - if(dst == (q7_t *) dst_end) - { - dst = dst_base; - } - - /* Circularly update rOffset. Watch out for positive and negative value */ - rOffset += bufferInc; - - if(rOffset >= L) - { - rOffset -= L; - } - - /* Decrement the loop counter */ - i--; - } - - /* Update the index pointer */ - *readOffset = rOffset; - } - - - /** - * @brief Sum of the squares of the elements of a Q31 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_power_q31( - q31_t * pSrc, - uint32_t blockSize, - q63_t * pResult); - - - /** - * @brief Sum of the squares of the elements of a floating-point vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_power_f32( - float32_t * pSrc, - uint32_t blockSize, - float32_t * pResult); - - - /** - * @brief Sum of the squares of the elements of a Q15 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_power_q15( - q15_t * pSrc, - uint32_t blockSize, - q63_t * pResult); - - - /** - * @brief Sum of the squares of the elements of a Q7 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_power_q7( - q7_t * pSrc, - uint32_t blockSize, - q31_t * pResult); - - - /** - * @brief Mean value of a Q7 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_mean_q7( - q7_t * pSrc, - uint32_t blockSize, - q7_t * pResult); - - - /** - * @brief Mean value of a Q15 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_mean_q15( - q15_t * pSrc, - uint32_t blockSize, - q15_t * pResult); - - - /** - * @brief Mean value of a Q31 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_mean_q31( - q31_t * pSrc, - uint32_t blockSize, - q31_t * pResult); - - - /** - * @brief Mean value of a floating-point vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_mean_f32( - float32_t * pSrc, - uint32_t blockSize, - float32_t * pResult); - - - /** - * @brief Variance of the elements of a floating-point vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_var_f32( - float32_t * pSrc, - uint32_t blockSize, - float32_t * pResult); - - - /** - * @brief Variance of the elements of a Q31 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_var_q31( - q31_t * pSrc, - uint32_t blockSize, - q31_t * pResult); - - - /** - * @brief Variance of the elements of a Q15 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_var_q15( - q15_t * pSrc, - uint32_t blockSize, - q15_t * pResult); - - - /** - * @brief Root Mean Square of the elements of a floating-point vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_rms_f32( - float32_t * pSrc, - uint32_t blockSize, - float32_t * pResult); - - - /** - * @brief Root Mean Square of the elements of a Q31 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_rms_q31( - q31_t * pSrc, - uint32_t blockSize, - q31_t * pResult); - - - /** - * @brief Root Mean Square of the elements of a Q15 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_rms_q15( - q15_t * pSrc, - uint32_t blockSize, - q15_t * pResult); - - - /** - * @brief Standard deviation of the elements of a floating-point vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_std_f32( - float32_t * pSrc, - uint32_t blockSize, - float32_t * pResult); - - - /** - * @brief Standard deviation of the elements of a Q31 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_std_q31( - q31_t * pSrc, - uint32_t blockSize, - q31_t * pResult); - - - /** - * @brief Standard deviation of the elements of a Q15 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output value. - */ - void arm_std_q15( - q15_t * pSrc, - uint32_t blockSize, - q15_t * pResult); - - - /** - * @brief Floating-point complex magnitude - * @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 - */ - void arm_cmplx_mag_f32( - float32_t * pSrc, - float32_t * pDst, - uint32_t numSamples); - - - /** - * @brief Q31 complex magnitude - * @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 - */ - void arm_cmplx_mag_q31( - q31_t * pSrc, - q31_t * pDst, - uint32_t numSamples); - - - /** - * @brief Q15 complex magnitude - * @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 - */ - void arm_cmplx_mag_q15( - q15_t * pSrc, - q15_t * pDst, - uint32_t numSamples); - - - /** - * @brief Q15 complex dot product - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[in] numSamples number of complex samples in each vector - * @param[out] realResult real part of the result returned here - * @param[out] imagResult imaginary part of the result returned here - */ - void arm_cmplx_dot_prod_q15( - q15_t * pSrcA, - q15_t * pSrcB, - uint32_t numSamples, - q31_t * realResult, - q31_t * imagResult); - - - /** - * @brief Q31 complex dot product - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[in] numSamples number of complex samples in each vector - * @param[out] realResult real part of the result returned here - * @param[out] imagResult imaginary part of the result returned here - */ - void arm_cmplx_dot_prod_q31( - q31_t * pSrcA, - q31_t * pSrcB, - uint32_t numSamples, - q63_t * realResult, - q63_t * imagResult); - - - /** - * @brief Floating-point complex dot product - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[in] numSamples number of complex samples in each vector - * @param[out] realResult real part of the result returned here - * @param[out] imagResult imaginary part of the result returned here - */ - void arm_cmplx_dot_prod_f32( - float32_t * pSrcA, - float32_t * pSrcB, - uint32_t numSamples, - float32_t * realResult, - float32_t * imagResult); - - - /** - * @brief Q15 complex-by-real multiplication - * @param[in] pSrcCmplx points to the complex input vector - * @param[in] pSrcReal points to the real input vector - * @param[out] pCmplxDst points to the complex output vector - * @param[in] numSamples number of samples in each vector - */ - void arm_cmplx_mult_real_q15( - q15_t * pSrcCmplx, - q15_t * pSrcReal, - q15_t * pCmplxDst, - uint32_t numSamples); - - - /** - * @brief Q31 complex-by-real multiplication - * @param[in] pSrcCmplx points to the complex input vector - * @param[in] pSrcReal points to the real input vector - * @param[out] pCmplxDst points to the complex output vector - * @param[in] numSamples number of samples in each vector - */ - void arm_cmplx_mult_real_q31( - q31_t * pSrcCmplx, - q31_t * pSrcReal, - q31_t * pCmplxDst, - uint32_t numSamples); - - - /** - * @brief Floating-point complex-by-real multiplication - * @param[in] pSrcCmplx points to the complex input vector - * @param[in] pSrcReal points to the real input vector - * @param[out] pCmplxDst points to the complex output vector - * @param[in] numSamples number of samples in each vector - */ - void arm_cmplx_mult_real_f32( - float32_t * pSrcCmplx, - float32_t * pSrcReal, - float32_t * pCmplxDst, - uint32_t numSamples); - - - /** - * @brief Minimum value of a Q7 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] result is output pointer - * @param[in] index is the array index of the minimum value in the input buffer. - */ - void arm_min_q7( - q7_t * pSrc, - uint32_t blockSize, - q7_t * result, - uint32_t * index); - - - /** - * @brief Minimum value of a Q15 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output pointer - * @param[in] pIndex is the array index of the minimum value in the input buffer. - */ - void arm_min_q15( - q15_t * pSrc, - uint32_t blockSize, - q15_t * pResult, - uint32_t * pIndex); - - - /** - * @brief Minimum value of a Q31 vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output pointer - * @param[out] pIndex is the array index of the minimum value in the input buffer. - */ - void arm_min_q31( - q31_t * pSrc, - uint32_t blockSize, - q31_t * pResult, - uint32_t * pIndex); - - - /** - * @brief Minimum value of a floating-point vector. - * @param[in] pSrc is input pointer - * @param[in] blockSize is the number of samples to process - * @param[out] pResult is output pointer - * @param[out] pIndex is the array index of the minimum value in the input buffer. - */ - void arm_min_f32( - float32_t * pSrc, - uint32_t blockSize, - float32_t * pResult, - uint32_t * pIndex); - - -/** - * @brief Maximum value of a Q7 vector. - * @param[in] pSrc points to the input buffer - * @param[in] blockSize length of the input vector - * @param[out] pResult maximum value returned here - * @param[out] pIndex index of maximum value returned here - */ - void arm_max_q7( - q7_t * pSrc, - uint32_t blockSize, - q7_t * pResult, - uint32_t * pIndex); - - -/** - * @brief Maximum value of a Q15 vector. - * @param[in] pSrc points to the input buffer - * @param[in] blockSize length of the input vector - * @param[out] pResult maximum value returned here - * @param[out] pIndex index of maximum value returned here - */ - void arm_max_q15( - q15_t * pSrc, - uint32_t blockSize, - q15_t * pResult, - uint32_t * pIndex); - - -/** - * @brief Maximum value of a Q31 vector. - * @param[in] pSrc points to the input buffer - * @param[in] blockSize length of the input vector - * @param[out] pResult maximum value returned here - * @param[out] pIndex index of maximum value returned here - */ - void arm_max_q31( - q31_t * pSrc, - uint32_t blockSize, - q31_t * pResult, - uint32_t * pIndex); - - -/** - * @brief Maximum value of a floating-point vector. - * @param[in] pSrc points to the input buffer - * @param[in] blockSize length of the input vector - * @param[out] pResult maximum value returned here - * @param[out] pIndex index of maximum value returned here - */ - void arm_max_f32( - float32_t * pSrc, - uint32_t blockSize, - float32_t * pResult, - uint32_t * pIndex); - - - /** - * @brief Q15 complex-by-complex multiplication - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] numSamples number of complex samples in each vector - */ - void arm_cmplx_mult_cmplx_q15( - q15_t * pSrcA, - q15_t * pSrcB, - q15_t * pDst, - uint32_t numSamples); - - - /** - * @brief Q31 complex-by-complex multiplication - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] numSamples number of complex samples in each vector - */ - void arm_cmplx_mult_cmplx_q31( - q31_t * pSrcA, - q31_t * pSrcB, - q31_t * pDst, - uint32_t numSamples); - - - /** - * @brief Floating-point complex-by-complex multiplication - * @param[in] pSrcA points to the first input vector - * @param[in] pSrcB points to the second input vector - * @param[out] pDst points to the output vector - * @param[in] numSamples number of complex samples in each vector - */ - void arm_cmplx_mult_cmplx_f32( - float32_t * pSrcA, - float32_t * pSrcB, - float32_t * pDst, - uint32_t numSamples); - - - /** - * @brief Converts the elements of the floating-point vector to Q31 vector. - * @param[in] pSrc points to the floating-point input vector - * @param[out] pDst points to the Q31 output vector - * @param[in] blockSize length of the input vector - */ - void arm_float_to_q31( - float32_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Converts the elements of the floating-point vector to Q15 vector. - * @param[in] pSrc points to the floating-point input vector - * @param[out] pDst points to the Q15 output vector - * @param[in] blockSize length of the input vector - */ - void arm_float_to_q15( - float32_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Converts the elements of the floating-point vector to Q7 vector. - * @param[in] pSrc points to the floating-point input vector - * @param[out] pDst points to the Q7 output vector - * @param[in] blockSize length of the input vector - */ - void arm_float_to_q7( - float32_t * pSrc, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Converts the elements of the Q31 vector to Q15 vector. - * @param[in] pSrc is input pointer - * @param[out] pDst is output pointer - * @param[in] blockSize is the number of samples to process - */ - void arm_q31_to_q15( - q31_t * pSrc, - q15_t * pDst, - uint32_t blockSize); - - - /** - * @brief Converts the elements of the Q31 vector to Q7 vector. - * @param[in] pSrc is input pointer - * @param[out] pDst is output pointer - * @param[in] blockSize is the number of samples to process - */ - void arm_q31_to_q7( - q31_t * pSrc, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @brief Converts the elements of the Q15 vector to floating-point vector. - * @param[in] pSrc is input pointer - * @param[out] pDst is output pointer - * @param[in] blockSize is the number of samples to process - */ - void arm_q15_to_float( - q15_t * pSrc, - float32_t * pDst, - uint32_t blockSize); - - - /** - * @brief Converts the elements of the Q15 vector to Q31 vector. - * @param[in] pSrc is input pointer - * @param[out] pDst is output pointer - * @param[in] blockSize is the number of samples to process - */ - void arm_q15_to_q31( - q15_t * pSrc, - q31_t * pDst, - uint32_t blockSize); - - - /** - * @brief Converts the elements of the Q15 vector to Q7 vector. - * @param[in] pSrc is input pointer - * @param[out] pDst is output pointer - * @param[in] blockSize is the number of samples to process - */ - void arm_q15_to_q7( - q15_t * pSrc, - q7_t * pDst, - uint32_t blockSize); - - - /** - * @ingroup groupInterpolation - */ - - /** - * @defgroup BilinearInterpolate Bilinear Interpolation - * - * Bilinear interpolation is an extension of linear interpolation applied to a two dimensional grid. - * The underlying function <code>f(x, y)</code> is sampled on a regular grid and the interpolation process - * determines values between the grid points. - * Bilinear interpolation is equivalent to two step linear interpolation, first in the x-dimension and then in the y-dimension. - * Bilinear interpolation is often used in image processing to rescale images. - * The CMSIS DSP library provides bilinear interpolation functions for Q7, Q15, Q31, and floating-point data types. - * - * <b>Algorithm</b> - * \par - * The instance structure used by the bilinear interpolation functions describes a two dimensional data table. - * For floating-point, the instance structure is defined as: - * <pre> - * typedef struct - * { - * uint16_t numRows; - * uint16_t numCols; - * float32_t *pData; - * } arm_bilinear_interp_instance_f32; - * </pre> - * - * \par - * where <code>numRows</code> specifies the number of rows in the table; - * <code>numCols</code> specifies the number of columns in the table; - * and <code>pData</code> points to an array of size <code>numRows*numCols</code> values. - * The data table <code>pTable</code> is organized in row order and the supplied data values fall on integer indexes. - * That is, table element (x,y) is located at <code>pTable[x + y*numCols]</code> where x and y are integers. - * - * \par - * Let <code>(x, y)</code> specify the desired interpolation point. Then define: - * <pre> - * XF = floor(x) - * YF = floor(y) - * </pre> - * \par - * The interpolated output point is computed as: - * <pre> - * f(x, y) = f(XF, YF) * (1-(x-XF)) * (1-(y-YF)) - * + f(XF+1, YF) * (x-XF)*(1-(y-YF)) - * + f(XF, YF+1) * (1-(x-XF))*(y-YF) - * + f(XF+1, YF+1) * (x-XF)*(y-YF) - * </pre> - * Note that the coordinates (x, y) contain integer and fractional components. - * The integer components specify which portion of the table to use while the - * fractional components control the interpolation processor. - * - * \par - * if (x,y) are outside of the table boundary, Bilinear interpolation returns zero output. - */ - - /** - * @addtogroup BilinearInterpolate - * @{ - */ - - - /** - * - * @brief Floating-point bilinear interpolation. - * @param[in,out] S points to an instance of the interpolation structure. - * @param[in] X interpolation coordinate. - * @param[in] Y interpolation coordinate. - * @return out interpolated value. - */ - static __INLINE float32_t arm_bilinear_interp_f32( - const arm_bilinear_interp_instance_f32 * S, - float32_t X, - float32_t Y) - { - float32_t out; - float32_t f00, f01, f10, f11; - float32_t *pData = S->pData; - int32_t xIndex, yIndex, index; - float32_t xdiff, ydiff; - float32_t b1, b2, b3, b4; - - xIndex = (int32_t) X; - yIndex = (int32_t) Y; - - /* Care taken for table outside boundary */ - /* Returns zero output when values are outside table boundary */ - if(xIndex < 0 || xIndex > (S->numRows - 1) || yIndex < 0 || yIndex > (S->numCols - 1)) - { - return (0); - } - - /* Calculation of index for two nearest points in X-direction */ - index = (xIndex - 1) + (yIndex - 1) * S->numCols; - - - /* Read two nearest points in X-direction */ - f00 = pData[index]; - f01 = pData[index + 1]; - - /* Calculation of index for two nearest points in Y-direction */ - index = (xIndex - 1) + (yIndex) * S->numCols; - - - /* Read two nearest points in Y-direction */ - f10 = pData[index]; - f11 = pData[index + 1]; - - /* Calculation of intermediate values */ - b1 = f00; - b2 = f01 - f00; - b3 = f10 - f00; - b4 = f00 - f01 - f10 + f11; - - /* Calculation of fractional part in X */ - xdiff = X - xIndex; - - /* Calculation of fractional part in Y */ - ydiff = Y - yIndex; - - /* Calculation of bi-linear interpolated output */ - out = b1 + b2 * xdiff + b3 * ydiff + b4 * xdiff * ydiff; - - /* return to application */ - return (out); - } - - - /** - * - * @brief Q31 bilinear interpolation. - * @param[in,out] S points to an instance of the interpolation structure. - * @param[in] X interpolation coordinate in 12.20 format. - * @param[in] Y interpolation coordinate in 12.20 format. - * @return out interpolated value. - */ - static __INLINE q31_t arm_bilinear_interp_q31( - arm_bilinear_interp_instance_q31 * S, - q31_t X, - q31_t Y) - { - q31_t out; /* Temporary output */ - q31_t acc = 0; /* output */ - q31_t xfract, yfract; /* X, Y fractional parts */ - q31_t x1, x2, y1, y2; /* Nearest output values */ - int32_t rI, cI; /* Row and column indices */ - q31_t *pYData = S->pData; /* pointer to output table values */ - uint32_t nCols = S->numCols; /* num of rows */ - - /* Input is in 12.20 format */ - /* 12 bits for the table index */ - /* Index value calculation */ - rI = ((X & (q31_t)0xFFF00000) >> 20); - - /* Input is in 12.20 format */ - /* 12 bits for the table index */ - /* Index value calculation */ - cI = ((Y & (q31_t)0xFFF00000) >> 20); - - /* Care taken for table outside boundary */ - /* Returns zero output when values are outside table boundary */ - if(rI < 0 || rI > (S->numRows - 1) || cI < 0 || cI > (S->numCols - 1)) - { - return (0); - } - - /* 20 bits for the fractional part */ - /* shift left xfract by 11 to keep 1.31 format */ - xfract = (X & 0x000FFFFF) << 11u; - - /* Read two nearest output values from the index */ - x1 = pYData[(rI) + (int32_t)nCols * (cI) ]; - x2 = pYData[(rI) + (int32_t)nCols * (cI) + 1]; - - /* 20 bits for the fractional part */ - /* shift left yfract by 11 to keep 1.31 format */ - yfract = (Y & 0x000FFFFF) << 11u; - - /* Read two nearest output values from the index */ - y1 = pYData[(rI) + (int32_t)nCols * (cI + 1) ]; - y2 = pYData[(rI) + (int32_t)nCols * (cI + 1) + 1]; - - /* Calculation of x1 * (1-xfract ) * (1-yfract) and acc is in 3.29(q29) format */ - out = ((q31_t) (((q63_t) x1 * (0x7FFFFFFF - xfract)) >> 32)); - acc = ((q31_t) (((q63_t) out * (0x7FFFFFFF - yfract)) >> 32)); - - /* x2 * (xfract) * (1-yfract) in 3.29(q29) and adding to acc */ - out = ((q31_t) ((q63_t) x2 * (0x7FFFFFFF - yfract) >> 32)); - acc += ((q31_t) ((q63_t) out * (xfract) >> 32)); - - /* y1 * (1 - xfract) * (yfract) in 3.29(q29) and adding to acc */ - out = ((q31_t) ((q63_t) y1 * (0x7FFFFFFF - xfract) >> 32)); - acc += ((q31_t) ((q63_t) out * (yfract) >> 32)); - - /* y2 * (xfract) * (yfract) in 3.29(q29) and adding to acc */ - out = ((q31_t) ((q63_t) y2 * (xfract) >> 32)); - acc += ((q31_t) ((q63_t) out * (yfract) >> 32)); - - /* Convert acc to 1.31(q31) format */ - return ((q31_t)(acc << 2)); - } - - - /** - * @brief Q15 bilinear interpolation. - * @param[in,out] S points to an instance of the interpolation structure. - * @param[in] X interpolation coordinate in 12.20 format. - * @param[in] Y interpolation coordinate in 12.20 format. - * @return out interpolated value. - */ - static __INLINE q15_t arm_bilinear_interp_q15( - arm_bilinear_interp_instance_q15 * S, - q31_t X, - q31_t Y) - { - q63_t acc = 0; /* output */ - q31_t out; /* Temporary output */ - q15_t x1, x2, y1, y2; /* Nearest output values */ - q31_t xfract, yfract; /* X, Y fractional parts */ - int32_t rI, cI; /* Row and column indices */ - q15_t *pYData = S->pData; /* pointer to output table values */ - uint32_t nCols = S->numCols; /* num of rows */ - - /* Input is in 12.20 format */ - /* 12 bits for the table index */ - /* Index value calculation */ - rI = ((X & (q31_t)0xFFF00000) >> 20); - - /* Input is in 12.20 format */ - /* 12 bits for the table index */ - /* Index value calculation */ - cI = ((Y & (q31_t)0xFFF00000) >> 20); - - /* Care taken for table outside boundary */ - /* Returns zero output when values are outside table boundary */ - if(rI < 0 || rI > (S->numRows - 1) || cI < 0 || cI > (S->numCols - 1)) - { - return (0); - } - - /* 20 bits for the fractional part */ - /* xfract should be in 12.20 format */ - xfract = (X & 0x000FFFFF); - - /* Read two nearest output values from the index */ - x1 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI) ]; - x2 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI) + 1]; - - /* 20 bits for the fractional part */ - /* yfract should be in 12.20 format */ - yfract = (Y & 0x000FFFFF); - - /* Read two nearest output values from the index */ - y1 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI + 1) ]; - y2 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI + 1) + 1]; - - /* Calculation of x1 * (1-xfract ) * (1-yfract) and acc is in 13.51 format */ - - /* x1 is in 1.15(q15), xfract in 12.20 format and out is in 13.35 format */ - /* convert 13.35 to 13.31 by right shifting and out is in 1.31 */ - out = (q31_t) (((q63_t) x1 * (0xFFFFF - xfract)) >> 4u); - acc = ((q63_t) out * (0xFFFFF - yfract)); - - /* x2 * (xfract) * (1-yfract) in 1.51 and adding to acc */ - out = (q31_t) (((q63_t) x2 * (0xFFFFF - yfract)) >> 4u); - acc += ((q63_t) out * (xfract)); - - /* y1 * (1 - xfract) * (yfract) in 1.51 and adding to acc */ - out = (q31_t) (((q63_t) y1 * (0xFFFFF - xfract)) >> 4u); - acc += ((q63_t) out * (yfract)); - - /* y2 * (xfract) * (yfract) in 1.51 and adding to acc */ - out = (q31_t) (((q63_t) y2 * (xfract)) >> 4u); - acc += ((q63_t) out * (yfract)); - - /* acc is in 13.51 format and down shift acc by 36 times */ - /* Convert out to 1.15 format */ - return ((q15_t)(acc >> 36)); - } - - - /** - * @brief Q7 bilinear interpolation. - * @param[in,out] S points to an instance of the interpolation structure. - * @param[in] X interpolation coordinate in 12.20 format. - * @param[in] Y interpolation coordinate in 12.20 format. - * @return out interpolated value. - */ - static __INLINE q7_t arm_bilinear_interp_q7( - arm_bilinear_interp_instance_q7 * S, - q31_t X, - q31_t Y) - { - q63_t acc = 0; /* output */ - q31_t out; /* Temporary output */ - q31_t xfract, yfract; /* X, Y fractional parts */ - q7_t x1, x2, y1, y2; /* Nearest output values */ - int32_t rI, cI; /* Row and column indices */ - q7_t *pYData = S->pData; /* pointer to output table values */ - uint32_t nCols = S->numCols; /* num of rows */ - - /* Input is in 12.20 format */ - /* 12 bits for the table index */ - /* Index value calculation */ - rI = ((X & (q31_t)0xFFF00000) >> 20); - - /* Input is in 12.20 format */ - /* 12 bits for the table index */ - /* Index value calculation */ - cI = ((Y & (q31_t)0xFFF00000) >> 20); - - /* Care taken for table outside boundary */ - /* Returns zero output when values are outside table boundary */ - if(rI < 0 || rI > (S->numRows - 1) || cI < 0 || cI > (S->numCols - 1)) - { - return (0); - } - - /* 20 bits for the fractional part */ - /* xfract should be in 12.20 format */ - xfract = (X & (q31_t)0x000FFFFF); - - /* Read two nearest output values from the index */ - x1 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI) ]; - x2 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI) + 1]; - - /* 20 bits for the fractional part */ - /* yfract should be in 12.20 format */ - yfract = (Y & (q31_t)0x000FFFFF); - - /* Read two nearest output values from the index */ - y1 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI + 1) ]; - y2 = pYData[((uint32_t)rI) + nCols * ((uint32_t)cI + 1) + 1]; - - /* Calculation of x1 * (1-xfract ) * (1-yfract) and acc is in 16.47 format */ - out = ((x1 * (0xFFFFF - xfract))); - acc = (((q63_t) out * (0xFFFFF - yfract))); - - /* x2 * (xfract) * (1-yfract) in 2.22 and adding to acc */ - out = ((x2 * (0xFFFFF - yfract))); - acc += (((q63_t) out * (xfract))); - - /* y1 * (1 - xfract) * (yfract) in 2.22 and adding to acc */ - out = ((y1 * (0xFFFFF - xfract))); - acc += (((q63_t) out * (yfract))); - - /* y2 * (xfract) * (yfract) in 2.22 and adding to acc */ - out = ((y2 * (yfract))); - acc += (((q63_t) out * (xfract))); - - /* acc in 16.47 format and down shift by 40 to convert to 1.7 format */ - return ((q7_t)(acc >> 40)); - } - - /** - * @} end of BilinearInterpolate group - */ - - -/* SMMLAR */ -#define multAcc_32x32_keep32_R(a, x, y) \ - a = (q31_t) (((((q63_t) a) << 32) + ((q63_t) x * y) + 0x80000000LL ) >> 32) - -/* SMMLSR */ -#define multSub_32x32_keep32_R(a, x, y) \ - a = (q31_t) (((((q63_t) a) << 32) - ((q63_t) x * y) + 0x80000000LL ) >> 32) - -/* SMMULR */ -#define mult_32x32_keep32_R(a, x, y) \ - a = (q31_t) (((q63_t) x * y + 0x80000000LL ) >> 32) - -/* SMMLA */ -#define multAcc_32x32_keep32(a, x, y) \ - a += (q31_t) (((q63_t) x * y) >> 32) - -/* SMMLS */ -#define multSub_32x32_keep32(a, x, y) \ - a -= (q31_t) (((q63_t) x * y) >> 32) - -/* SMMUL */ -#define mult_32x32_keep32(a, x, y) \ - a = (q31_t) (((q63_t) x * y ) >> 32) - - -#if defined ( __CC_ARM ) - /* Enter low optimization region - place directly above function definition */ - #if defined( ARM_MATH_CM4 ) || defined( ARM_MATH_CM7) - #define LOW_OPTIMIZATION_ENTER \ - _Pragma ("push") \ - _Pragma ("O1") - #else - #define LOW_OPTIMIZATION_ENTER - #endif - - /* Exit low optimization region - place directly after end of function definition */ - #if defined( ARM_MATH_CM4 ) || defined( ARM_MATH_CM7) - #define LOW_OPTIMIZATION_EXIT \ - _Pragma ("pop") - #else - #define LOW_OPTIMIZATION_EXIT - #endif - - /* Enter low optimization region - place directly above function definition */ - #define IAR_ONLY_LOW_OPTIMIZATION_ENTER - - /* Exit low optimization region - place directly after end of function definition */ - #define IAR_ONLY_LOW_OPTIMIZATION_EXIT - -#elif defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050) - #define LOW_OPTIMIZATION_ENTER - #define LOW_OPTIMIZATION_EXIT - #define IAR_ONLY_LOW_OPTIMIZATION_ENTER - #define IAR_ONLY_LOW_OPTIMIZATION_EXIT - -#elif defined(__GNUC__) - #define LOW_OPTIMIZATION_ENTER __attribute__(( optimize("-O1") )) - #define LOW_OPTIMIZATION_EXIT - #define IAR_ONLY_LOW_OPTIMIZATION_ENTER - #define IAR_ONLY_LOW_OPTIMIZATION_EXIT - -#elif defined(__ICCARM__) - /* Enter low optimization region - place directly above function definition */ - #if defined( ARM_MATH_CM4 ) || defined( ARM_MATH_CM7) - #define LOW_OPTIMIZATION_ENTER \ - _Pragma ("optimize=low") - #else - #define LOW_OPTIMIZATION_ENTER - #endif - - /* Exit low optimization region - place directly after end of function definition */ - #define LOW_OPTIMIZATION_EXIT - - /* Enter low optimization region - place directly above function definition */ - #if defined( ARM_MATH_CM4 ) || defined( ARM_MATH_CM7) - #define IAR_ONLY_LOW_OPTIMIZATION_ENTER \ - _Pragma ("optimize=low") - #else - #define IAR_ONLY_LOW_OPTIMIZATION_ENTER - #endif - - /* Exit low optimization region - place directly after end of function definition */ - #define IAR_ONLY_LOW_OPTIMIZATION_EXIT - -#elif defined(__CSMC__) - #define LOW_OPTIMIZATION_ENTER - #define LOW_OPTIMIZATION_EXIT - #define IAR_ONLY_LOW_OPTIMIZATION_ENTER - #define IAR_ONLY_LOW_OPTIMIZATION_EXIT - -#elif defined(__TASKING__) - #define LOW_OPTIMIZATION_ENTER - #define LOW_OPTIMIZATION_EXIT - #define IAR_ONLY_LOW_OPTIMIZATION_ENTER - #define IAR_ONLY_LOW_OPTIMIZATION_EXIT - -#endif - - -#ifdef __cplusplus -} -#endif - - -#if defined ( __GNUC__ ) -#pragma GCC diagnostic pop -#endif - -#endif /* _ARM_MATH_H */ - -/** - * - * End of file. - */ |