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CMSIS DSP library

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cmsis_dsp/arm_math.h@3:7a284390b0ce, 2013-11-08 (annotated)

Committer:
mbed_official
Date:
Fri Nov 08 13:45:10 2013 +0000
Revision:
3:7a284390b0ce
Parent:
2:da51fb522205
Child:
5:3762170b6d4d
Synchronized with git revision e69956aba2f68a2a26ac26b051f8d349deaa1ce8

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 3:7a284390b0ce 1 /* ----------------------------------------------------------------------
mbed_official 3:7a284390b0ce 2 * Copyright (C) 2010-2013 ARM Limited. All rights reserved.
mbed_official 3:7a284390b0ce 3 *
mbed_official 3:7a284390b0ce 4 * $Date: 17. January 2013
mbed_official 3:7a284390b0ce 5 * $Revision: V1.4.1
mbed_official 3:7a284390b0ce 6 *
mbed_official 3:7a284390b0ce 7 * Project: CMSIS DSP Library
mbed_official 3:7a284390b0ce 8 * Title: arm_math.h
mbed_official 3:7a284390b0ce 9 *
mbed_official 3:7a284390b0ce 10 * Description: Public header file for CMSIS DSP Library
mbed_official 3:7a284390b0ce 11 *
mbed_official 3:7a284390b0ce 12 * Target Processor: Cortex-M4/Cortex-M3/Cortex-M0
mbed_official 3:7a284390b0ce 13 *
mbed_official 3:7a284390b0ce 14 * Redistribution and use in source and binary forms, with or without
mbed_official 3:7a284390b0ce 15 * modification, are permitted provided that the following conditions
mbed_official 3:7a284390b0ce 16 * are met:
mbed_official 3:7a284390b0ce 17 * - Redistributions of source code must retain the above copyright
mbed_official 3:7a284390b0ce 18 * notice, this list of conditions and the following disclaimer.
mbed_official 3:7a284390b0ce 19 * - Redistributions in binary form must reproduce the above copyright
mbed_official 3:7a284390b0ce 20 * notice, this list of conditions and the following disclaimer in
mbed_official 3:7a284390b0ce 21 * the documentation and/or other materials provided with the
mbed_official 3:7a284390b0ce 22 * distribution.
mbed_official 3:7a284390b0ce 23 * - Neither the name of ARM LIMITED nor the names of its contributors
mbed_official 3:7a284390b0ce 24 * may be used to endorse or promote products derived from this
mbed_official 3:7a284390b0ce 25 * software without specific prior written permission.
mbed_official 3:7a284390b0ce 26 *
mbed_official 3:7a284390b0ce 27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
mbed_official 3:7a284390b0ce 28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
mbed_official 3:7a284390b0ce 29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
mbed_official 3:7a284390b0ce 30 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
mbed_official 3:7a284390b0ce 31 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
mbed_official 3:7a284390b0ce 32 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
mbed_official 3:7a284390b0ce 33 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
mbed_official 3:7a284390b0ce 34 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 3:7a284390b0ce 35 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
mbed_official 3:7a284390b0ce 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
mbed_official 3:7a284390b0ce 37 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
mbed_official 3:7a284390b0ce 38 * POSSIBILITY OF SUCH DAMAGE.
emilmont 1:fdd22bb7aa52 39 * -------------------------------------------------------------------- */
emilmont 1:fdd22bb7aa52 40
emilmont 1:fdd22bb7aa52 41 /**
emilmont 1:fdd22bb7aa52 42 \mainpage CMSIS DSP Software Library
emilmont 1:fdd22bb7aa52 43 *
emilmont 1:fdd22bb7aa52 44 * <b>Introduction</b>
emilmont 1:fdd22bb7aa52 45 *
mbed_official 3:7a284390b0ce 46 * This user manual describes the CMSIS DSP software library,
emilmont 1:fdd22bb7aa52 47 * a suite of common signal processing functions for use on Cortex-M processor based devices.
emilmont 1:fdd22bb7aa52 48 *
mbed_official 3:7a284390b0ce 49 * The library is divided into a number of functions each covering a specific category:
emilmont 1:fdd22bb7aa52 50 * - Basic math functions
emilmont 1:fdd22bb7aa52 51 * - Fast math functions
emilmont 1:fdd22bb7aa52 52 * - Complex math functions
emilmont 1:fdd22bb7aa52 53 * - Filters
emilmont 1:fdd22bb7aa52 54 * - Matrix functions
emilmont 1:fdd22bb7aa52 55 * - Transforms
emilmont 1:fdd22bb7aa52 56 * - Motor control functions
emilmont 1:fdd22bb7aa52 57 * - Statistical functions
emilmont 1:fdd22bb7aa52 58 * - Support functions
emilmont 1:fdd22bb7aa52 59 * - Interpolation functions
emilmont 1:fdd22bb7aa52 60 *
emilmont 1:fdd22bb7aa52 61 * The library has separate functions for operating on 8-bit integers, 16-bit integers,
mbed_official 3:7a284390b0ce 62 * 32-bit integer and 32-bit floating-point values.
emilmont 1:fdd22bb7aa52 63 *
emilmont 1:fdd22bb7aa52 64 * <b>Using the Library</b>
emilmont 1:fdd22bb7aa52 65 *
emilmont 1:fdd22bb7aa52 66 * The library installer contains prebuilt versions of the libraries in the <code>Lib</code> folder.
emilmont 1:fdd22bb7aa52 67 * - arm_cortexM4lf_math.lib (Little endian and Floating Point Unit on Cortex-M4)
emilmont 1:fdd22bb7aa52 68 * - arm_cortexM4bf_math.lib (Big endian and Floating Point Unit on Cortex-M4)
emilmont 1:fdd22bb7aa52 69 * - arm_cortexM4l_math.lib (Little endian on Cortex-M4)
emilmont 1:fdd22bb7aa52 70 * - arm_cortexM4b_math.lib (Big endian on Cortex-M4)
emilmont 1:fdd22bb7aa52 71 * - arm_cortexM3l_math.lib (Little endian on Cortex-M3)
emilmont 1:fdd22bb7aa52 72 * - arm_cortexM3b_math.lib (Big endian on Cortex-M3)
emilmont 1:fdd22bb7aa52 73 * - arm_cortexM0l_math.lib (Little endian on Cortex-M0)
emilmont 1:fdd22bb7aa52 74 * - arm_cortexM0b_math.lib (Big endian on Cortex-M3)
emilmont 1:fdd22bb7aa52 75 *
emilmont 1:fdd22bb7aa52 76 * The library functions are declared in the public file <code>arm_math.h</code> which is placed in the <code>Include</code> folder.
mbed_official 3:7a284390b0ce 77 * Simply include this file and link the appropriate library in the application and begin calling the library functions. The Library supports single
mbed_official 3:7a284390b0ce 78 * public header file <code> arm_math.h</code> for Cortex-M4/M3/M0 with little endian and big endian. Same header file will be used for floating point unit(FPU) variants.
mbed_official 3:7a284390b0ce 79 * Define the appropriate pre processor MACRO ARM_MATH_CM4 or ARM_MATH_CM3 or
mbed_official 3:7a284390b0ce 80 * ARM_MATH_CM0 or ARM_MATH_CM0PLUS depending on the target processor in the application.
emilmont 1:fdd22bb7aa52 81 *
emilmont 1:fdd22bb7aa52 82 * <b>Examples</b>
emilmont 1:fdd22bb7aa52 83 *
emilmont 1:fdd22bb7aa52 84 * The library ships with a number of examples which demonstrate how to use the library functions.
emilmont 1:fdd22bb7aa52 85 *
mbed_official 3:7a284390b0ce 86 * <b>Toolchain Support</b>
mbed_official 3:7a284390b0ce 87 *
mbed_official 3:7a284390b0ce 88 * The library has been developed and tested with MDK-ARM version 4.60.
mbed_official 3:7a284390b0ce 89 * The library is being tested in GCC and IAR toolchains and updates on this activity will be made available shortly.
mbed_official 3:7a284390b0ce 90 *
emilmont 1:fdd22bb7aa52 91 * <b>Building the Library</b>
emilmont 1:fdd22bb7aa52 92 *
emilmont 1:fdd22bb7aa52 93 * The library installer contains project files to re build libraries on MDK Tool chain in the <code>CMSIS\\DSP_Lib\\Source\\ARM</code> folder.
emilmont 1:fdd22bb7aa52 94 * - arm_cortexM0b_math.uvproj
emilmont 1:fdd22bb7aa52 95 * - arm_cortexM0l_math.uvproj
emilmont 1:fdd22bb7aa52 96 * - arm_cortexM3b_math.uvproj
mbed_official 3:7a284390b0ce 97 * - arm_cortexM3l_math.uvproj
emilmont 1:fdd22bb7aa52 98 * - arm_cortexM4b_math.uvproj
emilmont 1:fdd22bb7aa52 99 * - arm_cortexM4l_math.uvproj
emilmont 1:fdd22bb7aa52 100 * - arm_cortexM4bf_math.uvproj
emilmont 1:fdd22bb7aa52 101 * - arm_cortexM4lf_math.uvproj
emilmont 1:fdd22bb7aa52 102 *
emilmont 1:fdd22bb7aa52 103 *
mbed_official 3:7a284390b0ce 104 * The project can be built by opening the appropriate project in MDK-ARM 4.60 chain and defining the optional pre processor MACROs detailed above.
mbed_official 3:7a284390b0ce 105 *
mbed_official 3:7a284390b0ce 106 * <b>Pre-processor Macros</b>
mbed_official 3:7a284390b0ce 107 *
mbed_official 3:7a284390b0ce 108 * Each library project have differant pre-processor macros.
mbed_official 3:7a284390b0ce 109 *
mbed_official 3:7a284390b0ce 110 * - UNALIGNED_SUPPORT_DISABLE:
mbed_official 3:7a284390b0ce 111 *
mbed_official 3:7a284390b0ce 112 * Define macro UNALIGNED_SUPPORT_DISABLE, If the silicon does not support unaligned memory access
mbed_official 3:7a284390b0ce 113 *
mbed_official 3:7a284390b0ce 114 * - ARM_MATH_BIG_ENDIAN:
mbed_official 3:7a284390b0ce 115 *
mbed_official 3:7a284390b0ce 116 * Define macro ARM_MATH_BIG_ENDIAN to build the library for big endian targets. By default library builds for little endian targets.
mbed_official 3:7a284390b0ce 117 *
mbed_official 3:7a284390b0ce 118 * - ARM_MATH_MATRIX_CHECK:
mbed_official 3:7a284390b0ce 119 *
mbed_official 3:7a284390b0ce 120 * Define macro ARM_MATH_MATRIX_CHECK for checking on the input and output sizes of matrices
mbed_official 3:7a284390b0ce 121 *
mbed_official 3:7a284390b0ce 122 * - ARM_MATH_ROUNDING:
mbed_official 3:7a284390b0ce 123 *
mbed_official 3:7a284390b0ce 124 * Define macro ARM_MATH_ROUNDING for rounding on support functions
mbed_official 3:7a284390b0ce 125 *
mbed_official 3:7a284390b0ce 126 * - ARM_MATH_CMx:
mbed_official 3:7a284390b0ce 127 *
mbed_official 3:7a284390b0ce 128 * Define macro ARM_MATH_CM4 for building the library on Cortex-M4 target, ARM_MATH_CM3 for building library on Cortex-M3 target
mbed_official 3:7a284390b0ce 129 * and ARM_MATH_CM0 for building library on cortex-M0 target, ARM_MATH_CM0PLUS for building library on cortex-M0+ target.
mbed_official 3:7a284390b0ce 130 *
mbed_official 3:7a284390b0ce 131 * - __FPU_PRESENT:
mbed_official 3:7a284390b0ce 132 *
mbed_official 3:7a284390b0ce 133 * Initialize macro __FPU_PRESENT = 1 when building on FPU supported Targets. Enable this macro for M4bf and M4lf libraries
emilmont 1:fdd22bb7aa52 134 *
emilmont 1:fdd22bb7aa52 135 * <b>Copyright Notice</b>
emilmont 1:fdd22bb7aa52 136 *
mbed_official 3:7a284390b0ce 137 * Copyright (C) 2010-2013 ARM Limited. All rights reserved.
emilmont 1:fdd22bb7aa52 138 */
emilmont 1:fdd22bb7aa52 139
emilmont 1:fdd22bb7aa52 140
emilmont 1:fdd22bb7aa52 141 /**
emilmont 1:fdd22bb7aa52 142 * @defgroup groupMath Basic Math Functions
emilmont 1:fdd22bb7aa52 143 */
emilmont 1:fdd22bb7aa52 144
emilmont 1:fdd22bb7aa52 145 /**
emilmont 1:fdd22bb7aa52 146 * @defgroup groupFastMath Fast Math Functions
emilmont 1:fdd22bb7aa52 147 * This set of functions provides a fast approximation to sine, cosine, and square root.
emilmont 1:fdd22bb7aa52 148 * As compared to most of the other functions in the CMSIS math library, the fast math functions
emilmont 1:fdd22bb7aa52 149 * operate on individual values and not arrays.
emilmont 1:fdd22bb7aa52 150 * There are separate functions for Q15, Q31, and floating-point data.
emilmont 1:fdd22bb7aa52 151 *
emilmont 1:fdd22bb7aa52 152 */
emilmont 1:fdd22bb7aa52 153
emilmont 1:fdd22bb7aa52 154 /**
emilmont 1:fdd22bb7aa52 155 * @defgroup groupCmplxMath Complex Math Functions
emilmont 1:fdd22bb7aa52 156 * This set of functions operates on complex data vectors.
emilmont 1:fdd22bb7aa52 157 * The data in the complex arrays is stored in an interleaved fashion
emilmont 1:fdd22bb7aa52 158 * (real, imag, real, imag, ...).
emilmont 1:fdd22bb7aa52 159 * In the API functions, the number of samples in a complex array refers
emilmont 1:fdd22bb7aa52 160 * to the number of complex values; the array contains twice this number of
emilmont 1:fdd22bb7aa52 161 * real values.
emilmont 1:fdd22bb7aa52 162 */
emilmont 1:fdd22bb7aa52 163
emilmont 1:fdd22bb7aa52 164 /**
emilmont 1:fdd22bb7aa52 165 * @defgroup groupFilters Filtering Functions
emilmont 1:fdd22bb7aa52 166 */
emilmont 1:fdd22bb7aa52 167
emilmont 1:fdd22bb7aa52 168 /**
emilmont 1:fdd22bb7aa52 169 * @defgroup groupMatrix Matrix Functions
emilmont 1:fdd22bb7aa52 170 *
emilmont 1:fdd22bb7aa52 171 * This set of functions provides basic matrix math operations.
emilmont 1:fdd22bb7aa52 172 * The functions operate on matrix data structures. For example,
emilmont 1:fdd22bb7aa52 173 * the type
emilmont 1:fdd22bb7aa52 174 * definition for the floating-point matrix structure is shown
emilmont 1:fdd22bb7aa52 175 * below:
emilmont 1:fdd22bb7aa52 176 * <pre>
emilmont 1:fdd22bb7aa52 177 * typedef struct
emilmont 1:fdd22bb7aa52 178 * {
emilmont 1:fdd22bb7aa52 179 * uint16_t numRows; // number of rows of the matrix.
emilmont 1:fdd22bb7aa52 180 * uint16_t numCols; // number of columns of the matrix.
emilmont 1:fdd22bb7aa52 181 * float32_t *pData; // points to the data of the matrix.
emilmont 1:fdd22bb7aa52 182 * } arm_matrix_instance_f32;
emilmont 1:fdd22bb7aa52 183 * </pre>
emilmont 1:fdd22bb7aa52 184 * There are similar definitions for Q15 and Q31 data types.
emilmont 1:fdd22bb7aa52 185 *
emilmont 1:fdd22bb7aa52 186 * The structure specifies the size of the matrix and then points to
emilmont 1:fdd22bb7aa52 187 * an array of data. The array is of size <code>numRows X numCols</code>
emilmont 1:fdd22bb7aa52 188 * and the values are arranged in row order. That is, the
emilmont 1:fdd22bb7aa52 189 * matrix element (i, j) is stored at:
emilmont 1:fdd22bb7aa52 190 * <pre>
emilmont 1:fdd22bb7aa52 191 * pData[i*numCols + j]
emilmont 1:fdd22bb7aa52 192 * </pre>
emilmont 1:fdd22bb7aa52 193 *
emilmont 1:fdd22bb7aa52 194 * \par Init Functions
emilmont 1:fdd22bb7aa52 195 * There is an associated initialization function for each type of matrix
emilmont 1:fdd22bb7aa52 196 * data structure.
emilmont 1:fdd22bb7aa52 197 * The initialization function sets the values of the internal structure fields.
emilmont 1:fdd22bb7aa52 198 * Refer to the function <code>arm_mat_init_f32()</code>, <code>arm_mat_init_q31()</code>
emilmont 1:fdd22bb7aa52 199 * and <code>arm_mat_init_q15()</code> for floating-point, Q31 and Q15 types, respectively.
emilmont 1:fdd22bb7aa52 200 *
emilmont 1:fdd22bb7aa52 201 * \par
emilmont 1:fdd22bb7aa52 202 * Use of the initialization function is optional. However, if initialization function is used
emilmont 1:fdd22bb7aa52 203 * then the instance structure cannot be placed into a const data section.
emilmont 1:fdd22bb7aa52 204 * To place the instance structure in a const data
emilmont 1:fdd22bb7aa52 205 * section, manually initialize the data structure. For example:
emilmont 1:fdd22bb7aa52 206 * <pre>
emilmont 1:fdd22bb7aa52 207 * <code>arm_matrix_instance_f32 S = {nRows, nColumns, pData};</code>
emilmont 1:fdd22bb7aa52 208 * <code>arm_matrix_instance_q31 S = {nRows, nColumns, pData};</code>
emilmont 1:fdd22bb7aa52 209 * <code>arm_matrix_instance_q15 S = {nRows, nColumns, pData};</code>
emilmont 1:fdd22bb7aa52 210 * </pre>
emilmont 1:fdd22bb7aa52 211 * where <code>nRows</code> specifies the number of rows, <code>nColumns</code>
emilmont 1:fdd22bb7aa52 212 * specifies the number of columns, and <code>pData</code> points to the
emilmont 1:fdd22bb7aa52 213 * data array.
emilmont 1:fdd22bb7aa52 214 *
emilmont 1:fdd22bb7aa52 215 * \par Size Checking
emilmont 1:fdd22bb7aa52 216 * By default all of the matrix functions perform size checking on the input and
emilmont 1:fdd22bb7aa52 217 * output matrices. For example, the matrix addition function verifies that the
emilmont 1:fdd22bb7aa52 218 * two input matrices and the output matrix all have the same number of rows and
emilmont 1:fdd22bb7aa52 219 * columns. If the size check fails the functions return:
emilmont 1:fdd22bb7aa52 220 * <pre>
emilmont 1:fdd22bb7aa52 221 * ARM_MATH_SIZE_MISMATCH
emilmont 1:fdd22bb7aa52 222 * </pre>
emilmont 1:fdd22bb7aa52 223 * Otherwise the functions return
emilmont 1:fdd22bb7aa52 224 * <pre>
emilmont 1:fdd22bb7aa52 225 * ARM_MATH_SUCCESS
emilmont 1:fdd22bb7aa52 226 * </pre>
emilmont 1:fdd22bb7aa52 227 * There is some overhead associated with this matrix size checking.
emilmont 1:fdd22bb7aa52 228 * The matrix size checking is enabled via the \#define
emilmont 1:fdd22bb7aa52 229 * <pre>
emilmont 1:fdd22bb7aa52 230 * ARM_MATH_MATRIX_CHECK
emilmont 1:fdd22bb7aa52 231 * </pre>
emilmont 1:fdd22bb7aa52 232 * within the library project settings. By default this macro is defined
emilmont 1:fdd22bb7aa52 233 * and size checking is enabled. By changing the project settings and
emilmont 1:fdd22bb7aa52 234 * undefining this macro size checking is eliminated and the functions
emilmont 1:fdd22bb7aa52 235 * run a bit faster. With size checking disabled the functions always
emilmont 1:fdd22bb7aa52 236 * return <code>ARM_MATH_SUCCESS</code>.
emilmont 1:fdd22bb7aa52 237 */
emilmont 1:fdd22bb7aa52 238
emilmont 1:fdd22bb7aa52 239 /**
emilmont 1:fdd22bb7aa52 240 * @defgroup groupTransforms Transform Functions
emilmont 1:fdd22bb7aa52 241 */
emilmont 1:fdd22bb7aa52 242
emilmont 1:fdd22bb7aa52 243 /**
emilmont 1:fdd22bb7aa52 244 * @defgroup groupController Controller Functions
emilmont 1:fdd22bb7aa52 245 */
emilmont 1:fdd22bb7aa52 246
emilmont 1:fdd22bb7aa52 247 /**
emilmont 1:fdd22bb7aa52 248 * @defgroup groupStats Statistics Functions
emilmont 1:fdd22bb7aa52 249 */
emilmont 1:fdd22bb7aa52 250 /**
emilmont 1:fdd22bb7aa52 251 * @defgroup groupSupport Support Functions
emilmont 1:fdd22bb7aa52 252 */
emilmont 1:fdd22bb7aa52 253
emilmont 1:fdd22bb7aa52 254 /**
emilmont 1:fdd22bb7aa52 255 * @defgroup groupInterpolation Interpolation Functions
emilmont 1:fdd22bb7aa52 256 * These functions perform 1- and 2-dimensional interpolation of data.
emilmont 1:fdd22bb7aa52 257 * Linear interpolation is used for 1-dimensional data and
emilmont 1:fdd22bb7aa52 258 * bilinear interpolation is used for 2-dimensional data.
emilmont 1:fdd22bb7aa52 259 */
emilmont 1:fdd22bb7aa52 260
emilmont 1:fdd22bb7aa52 261 /**
emilmont 1:fdd22bb7aa52 262 * @defgroup groupExamples Examples
emilmont 1:fdd22bb7aa52 263 */
emilmont 1:fdd22bb7aa52 264 #ifndef _ARM_MATH_H
emilmont 1:fdd22bb7aa52 265 #define _ARM_MATH_H
emilmont 1:fdd22bb7aa52 266
emilmont 1:fdd22bb7aa52 267 #define __CMSIS_GENERIC /* disable NVIC and Systick functions */
emilmont 1:fdd22bb7aa52 268
emilmont 1:fdd22bb7aa52 269 #if defined (ARM_MATH_CM4)
emilmont 1:fdd22bb7aa52 270 #include "core_cm4.h"
emilmont 1:fdd22bb7aa52 271 #elif defined (ARM_MATH_CM3)
emilmont 1:fdd22bb7aa52 272 #include "core_cm3.h"
emilmont 1:fdd22bb7aa52 273 #elif defined (ARM_MATH_CM0)
emilmont 1:fdd22bb7aa52 274 #include "core_cm0.h"
mbed_official 3:7a284390b0ce 275 #define ARM_MATH_CM0_FAMILY
mbed_official 3:7a284390b0ce 276 #elif defined (ARM_MATH_CM0PLUS)
mbed_official 3:7a284390b0ce 277 #include "core_cm0plus.h"
mbed_official 3:7a284390b0ce 278 #define ARM_MATH_CM0_FAMILY
emilmont 1:fdd22bb7aa52 279 #else
emilmont 1:fdd22bb7aa52 280 #include "ARMCM4.h"
emilmont 1:fdd22bb7aa52 281 #warning "Define either ARM_MATH_CM4 OR ARM_MATH_CM3...By Default building on ARM_MATH_CM4....."
emilmont 1:fdd22bb7aa52 282 #endif
emilmont 1:fdd22bb7aa52 283
emilmont 1:fdd22bb7aa52 284 #undef __CMSIS_GENERIC /* enable NVIC and Systick functions */
emilmont 1:fdd22bb7aa52 285 #include "string.h"
emilmont 1:fdd22bb7aa52 286 #include "math.h"
emilmont 2:da51fb522205 287 #ifdef __cplusplus
emilmont 1:fdd22bb7aa52 288 extern "C"
emilmont 1:fdd22bb7aa52 289 {
emilmont 1:fdd22bb7aa52 290 #endif
emilmont 1:fdd22bb7aa52 291
emilmont 1:fdd22bb7aa52 292
emilmont 1:fdd22bb7aa52 293 /**
emilmont 1:fdd22bb7aa52 294 * @brief Macros required for reciprocal calculation in Normalized LMS
emilmont 1:fdd22bb7aa52 295 */
emilmont 1:fdd22bb7aa52 296
emilmont 2:da51fb522205 297 #define DELTA_Q31 (0x100)
emilmont 2:da51fb522205 298 #define DELTA_Q15 0x5
emilmont 2:da51fb522205 299 #define INDEX_MASK 0x0000003F
emilmont 1:fdd22bb7aa52 300 #ifndef PI
emilmont 2:da51fb522205 301 #define PI 3.14159265358979f
emilmont 1:fdd22bb7aa52 302 #endif
emilmont 1:fdd22bb7aa52 303
emilmont 1:fdd22bb7aa52 304 /**
emilmont 1:fdd22bb7aa52 305 * @brief Macros required for SINE and COSINE Fast math approximations
emilmont 1:fdd22bb7aa52 306 */
emilmont 1:fdd22bb7aa52 307
emilmont 2:da51fb522205 308 #define TABLE_SIZE 256
emilmont 2:da51fb522205 309 #define TABLE_SPACING_Q31 0x800000
emilmont 2:da51fb522205 310 #define TABLE_SPACING_Q15 0x80
emilmont 1:fdd22bb7aa52 311
emilmont 1:fdd22bb7aa52 312 /**
emilmont 1:fdd22bb7aa52 313 * @brief Macros required for SINE and COSINE Controller functions
emilmont 1:fdd22bb7aa52 314 */
emilmont 1:fdd22bb7aa52 315 /* 1.31(q31) Fixed value of 2/360 */
emilmont 1:fdd22bb7aa52 316 /* -1 to +1 is divided into 360 values so total spacing is (2/360) */
emilmont 2:da51fb522205 317 #define INPUT_SPACING 0xB60B61
emilmont 1:fdd22bb7aa52 318
emilmont 1:fdd22bb7aa52 319 /**
emilmont 1:fdd22bb7aa52 320 * @brief Macro for Unaligned Support
emilmont 1:fdd22bb7aa52 321 */
emilmont 1:fdd22bb7aa52 322 #ifndef UNALIGNED_SUPPORT_DISABLE
emilmont 1:fdd22bb7aa52 323 #define ALIGN4
emilmont 1:fdd22bb7aa52 324 #else
emilmont 1:fdd22bb7aa52 325 #if defined (__GNUC__)
emilmont 1:fdd22bb7aa52 326 #define ALIGN4 __attribute__((aligned(4)))
emilmont 1:fdd22bb7aa52 327 #else
emilmont 1:fdd22bb7aa52 328 #define ALIGN4 __align(4)
emilmont 1:fdd22bb7aa52 329 #endif
emilmont 2:da51fb522205 330 #endif /* #ifndef UNALIGNED_SUPPORT_DISABLE */
emilmont 1:fdd22bb7aa52 331
emilmont 1:fdd22bb7aa52 332 /**
emilmont 1:fdd22bb7aa52 333 * @brief Error status returned by some functions in the library.
emilmont 1:fdd22bb7aa52 334 */
emilmont 1:fdd22bb7aa52 335
emilmont 1:fdd22bb7aa52 336 typedef enum
emilmont 1:fdd22bb7aa52 337 {
emilmont 1:fdd22bb7aa52 338 ARM_MATH_SUCCESS = 0, /**< No error */
emilmont 1:fdd22bb7aa52 339 ARM_MATH_ARGUMENT_ERROR = -1, /**< One or more arguments are incorrect */
emilmont 1:fdd22bb7aa52 340 ARM_MATH_LENGTH_ERROR = -2, /**< Length of data buffer is incorrect */
emilmont 1:fdd22bb7aa52 341 ARM_MATH_SIZE_MISMATCH = -3, /**< Size of matrices is not compatible with the operation. */
emilmont 1:fdd22bb7aa52 342 ARM_MATH_NANINF = -4, /**< Not-a-number (NaN) or infinity is generated */
emilmont 1:fdd22bb7aa52 343 ARM_MATH_SINGULAR = -5, /**< Generated by matrix inversion if the input matrix is singular and cannot be inverted. */
emilmont 1:fdd22bb7aa52 344 ARM_MATH_TEST_FAILURE = -6 /**< Test Failed */
emilmont 1:fdd22bb7aa52 345 } arm_status;
emilmont 1:fdd22bb7aa52 346
emilmont 1:fdd22bb7aa52 347 /**
emilmont 1:fdd22bb7aa52 348 * @brief 8-bit fractional data type in 1.7 format.
emilmont 1:fdd22bb7aa52 349 */
emilmont 1:fdd22bb7aa52 350 typedef int8_t q7_t;
emilmont 1:fdd22bb7aa52 351
emilmont 1:fdd22bb7aa52 352 /**
emilmont 1:fdd22bb7aa52 353 * @brief 16-bit fractional data type in 1.15 format.
emilmont 1:fdd22bb7aa52 354 */
emilmont 1:fdd22bb7aa52 355 typedef int16_t q15_t;
emilmont 1:fdd22bb7aa52 356
emilmont 1:fdd22bb7aa52 357 /**
emilmont 1:fdd22bb7aa52 358 * @brief 32-bit fractional data type in 1.31 format.
emilmont 1:fdd22bb7aa52 359 */
emilmont 1:fdd22bb7aa52 360 typedef int32_t q31_t;
emilmont 1:fdd22bb7aa52 361
emilmont 1:fdd22bb7aa52 362 /**
emilmont 1:fdd22bb7aa52 363 * @brief 64-bit fractional data type in 1.63 format.
emilmont 1:fdd22bb7aa52 364 */
emilmont 1:fdd22bb7aa52 365 typedef int64_t q63_t;
emilmont 1:fdd22bb7aa52 366
emilmont 1:fdd22bb7aa52 367 /**
emilmont 1:fdd22bb7aa52 368 * @brief 32-bit floating-point type definition.
emilmont 1:fdd22bb7aa52 369 */
emilmont 1:fdd22bb7aa52 370 typedef float float32_t;
emilmont 1:fdd22bb7aa52 371
emilmont 1:fdd22bb7aa52 372 /**
emilmont 1:fdd22bb7aa52 373 * @brief 64-bit floating-point type definition.
emilmont 1:fdd22bb7aa52 374 */
emilmont 1:fdd22bb7aa52 375 typedef double float64_t;
emilmont 1:fdd22bb7aa52 376
emilmont 1:fdd22bb7aa52 377 /**
emilmont 1:fdd22bb7aa52 378 * @brief definition to read/write two 16 bit values.
emilmont 1:fdd22bb7aa52 379 */
mbed_official 3:7a284390b0ce 380 #if defined __CC_ARM
mbed_official 3:7a284390b0ce 381 #define __SIMD32_TYPE int32_t __packed
mbed_official 3:7a284390b0ce 382 #define CMSIS_UNUSED __attribute__((unused))
mbed_official 3:7a284390b0ce 383 #elif defined __ICCARM__
mbed_official 3:7a284390b0ce 384 #define CMSIS_UNUSED
mbed_official 3:7a284390b0ce 385 #define __SIMD32_TYPE int32_t __packed
mbed_official 3:7a284390b0ce 386 #elif defined __GNUC__
mbed_official 3:7a284390b0ce 387 #define __SIMD32_TYPE int32_t
mbed_official 3:7a284390b0ce 388 #define CMSIS_UNUSED __attribute__((unused))
emilmont 1:fdd22bb7aa52 389 #else
mbed_official 3:7a284390b0ce 390 #error Unknown compiler
mbed_official 3:7a284390b0ce 391 #endif
mbed_official 3:7a284390b0ce 392
mbed_official 3:7a284390b0ce 393 #define __SIMD32(addr) (*(__SIMD32_TYPE **) & (addr))
mbed_official 3:7a284390b0ce 394 #define __SIMD32_CONST(addr) ((__SIMD32_TYPE *)(addr))
mbed_official 3:7a284390b0ce 395
mbed_official 3:7a284390b0ce 396 #define _SIMD32_OFFSET(addr) (*(__SIMD32_TYPE *) (addr))
mbed_official 3:7a284390b0ce 397
mbed_official 3:7a284390b0ce 398 #define __SIMD64(addr) (*(int64_t **) & (addr))
mbed_official 3:7a284390b0ce 399
mbed_official 3:7a284390b0ce 400 #if defined (ARM_MATH_CM3) || defined (ARM_MATH_CM0_FAMILY)
emilmont 1:fdd22bb7aa52 401 /**
emilmont 1:fdd22bb7aa52 402 * @brief definition to pack two 16 bit values.
emilmont 1:fdd22bb7aa52 403 */
emilmont 1:fdd22bb7aa52 404 #define __PKHBT(ARG1, ARG2, ARG3) ( (((int32_t)(ARG1) << 0) & (int32_t)0x0000FFFF) | \
emilmont 1:fdd22bb7aa52 405 (((int32_t)(ARG2) << ARG3) & (int32_t)0xFFFF0000) )
emilmont 1:fdd22bb7aa52 406 #define __PKHTB(ARG1, ARG2, ARG3) ( (((int32_t)(ARG1) << 0) & (int32_t)0xFFFF0000) | \
emilmont 1:fdd22bb7aa52 407 (((int32_t)(ARG2) >> ARG3) & (int32_t)0x0000FFFF) )
emilmont 1:fdd22bb7aa52 408
emilmont 1:fdd22bb7aa52 409 #endif
emilmont 1:fdd22bb7aa52 410
emilmont 1:fdd22bb7aa52 411
emilmont 1:fdd22bb7aa52 412 /**
emilmont 1:fdd22bb7aa52 413 * @brief definition to pack four 8 bit values.
emilmont 1:fdd22bb7aa52 414 */
emilmont 1:fdd22bb7aa52 415 #ifndef ARM_MATH_BIG_ENDIAN
emilmont 1:fdd22bb7aa52 416
emilmont 2:da51fb522205 417 #define __PACKq7(v0,v1,v2,v3) ( (((int32_t)(v0) << 0) & (int32_t)0x000000FF) | \
emilmont 2:da51fb522205 418 (((int32_t)(v1) << 8) & (int32_t)0x0000FF00) | \
emilmont 2:da51fb522205 419 (((int32_t)(v2) << 16) & (int32_t)0x00FF0000) | \
emilmont 2:da51fb522205 420 (((int32_t)(v3) << 24) & (int32_t)0xFF000000) )
emilmont 1:fdd22bb7aa52 421 #else
emilmont 1:fdd22bb7aa52 422
emilmont 2:da51fb522205 423 #define __PACKq7(v0,v1,v2,v3) ( (((int32_t)(v3) << 0) & (int32_t)0x000000FF) | \
emilmont 2:da51fb522205 424 (((int32_t)(v2) << 8) & (int32_t)0x0000FF00) | \
emilmont 2:da51fb522205 425 (((int32_t)(v1) << 16) & (int32_t)0x00FF0000) | \
emilmont 2:da51fb522205 426 (((int32_t)(v0) << 24) & (int32_t)0xFF000000) )
emilmont 1:fdd22bb7aa52 427
emilmont 1:fdd22bb7aa52 428 #endif
emilmont 1:fdd22bb7aa52 429
emilmont 1:fdd22bb7aa52 430
emilmont 1:fdd22bb7aa52 431 /**
emilmont 1:fdd22bb7aa52 432 * @brief Clips Q63 to Q31 values.
emilmont 1:fdd22bb7aa52 433 */
mbed_official 3:7a284390b0ce 434 static __INLINE q31_t clip_q63_to_q31(
emilmont 1:fdd22bb7aa52 435 q63_t x)
emilmont 1:fdd22bb7aa52 436 {
emilmont 1:fdd22bb7aa52 437 return ((q31_t) (x >> 32) != ((q31_t) x >> 31)) ?
emilmont 1:fdd22bb7aa52 438 ((0x7FFFFFFF ^ ((q31_t) (x >> 63)))) : (q31_t) x;
emilmont 1:fdd22bb7aa52 439 }
emilmont 1:fdd22bb7aa52 440
emilmont 1:fdd22bb7aa52 441 /**
emilmont 1:fdd22bb7aa52 442 * @brief Clips Q63 to Q15 values.
emilmont 1:fdd22bb7aa52 443 */
mbed_official 3:7a284390b0ce 444 static __INLINE q15_t clip_q63_to_q15(
emilmont 1:fdd22bb7aa52 445 q63_t x)
emilmont 1:fdd22bb7aa52 446 {
emilmont 1:fdd22bb7aa52 447 return ((q31_t) (x >> 32) != ((q31_t) x >> 31)) ?
emilmont 1:fdd22bb7aa52 448 ((0x7FFF ^ ((q15_t) (x >> 63)))) : (q15_t) (x >> 15);
emilmont 1:fdd22bb7aa52 449 }
emilmont 1:fdd22bb7aa52 450
emilmont 1:fdd22bb7aa52 451 /**
emilmont 1:fdd22bb7aa52 452 * @brief Clips Q31 to Q7 values.
emilmont 1:fdd22bb7aa52 453 */
mbed_official 3:7a284390b0ce 454 static __INLINE q7_t clip_q31_to_q7(
emilmont 1:fdd22bb7aa52 455 q31_t x)
emilmont 1:fdd22bb7aa52 456 {
emilmont 1:fdd22bb7aa52 457 return ((q31_t) (x >> 24) != ((q31_t) x >> 23)) ?
emilmont 1:fdd22bb7aa52 458 ((0x7F ^ ((q7_t) (x >> 31)))) : (q7_t) x;
emilmont 1:fdd22bb7aa52 459 }
emilmont 1:fdd22bb7aa52 460
emilmont 1:fdd22bb7aa52 461 /**
emilmont 1:fdd22bb7aa52 462 * @brief Clips Q31 to Q15 values.
emilmont 1:fdd22bb7aa52 463 */
mbed_official 3:7a284390b0ce 464 static __INLINE q15_t clip_q31_to_q15(
emilmont 1:fdd22bb7aa52 465 q31_t x)
emilmont 1:fdd22bb7aa52 466 {
emilmont 1:fdd22bb7aa52 467 return ((q31_t) (x >> 16) != ((q31_t) x >> 15)) ?
emilmont 1:fdd22bb7aa52 468 ((0x7FFF ^ ((q15_t) (x >> 31)))) : (q15_t) x;
emilmont 1:fdd22bb7aa52 469 }
emilmont 1:fdd22bb7aa52 470
emilmont 1:fdd22bb7aa52 471 /**
emilmont 1:fdd22bb7aa52 472 * @brief Multiplies 32 X 64 and returns 32 bit result in 2.30 format.
emilmont 1:fdd22bb7aa52 473 */
emilmont 1:fdd22bb7aa52 474
mbed_official 3:7a284390b0ce 475 static __INLINE q63_t mult32x64(
emilmont 1:fdd22bb7aa52 476 q63_t x,
emilmont 1:fdd22bb7aa52 477 q31_t y)
emilmont 1:fdd22bb7aa52 478 {
emilmont 1:fdd22bb7aa52 479 return ((((q63_t) (x & 0x00000000FFFFFFFF) * y) >> 32) +
emilmont 1:fdd22bb7aa52 480 (((q63_t) (x >> 32) * y)));
emilmont 1:fdd22bb7aa52 481 }
emilmont 1:fdd22bb7aa52 482
emilmont 1:fdd22bb7aa52 483
mbed_official 3:7a284390b0ce 484 #if defined (ARM_MATH_CM0_FAMILY) && defined ( __CC_ARM )
emilmont 1:fdd22bb7aa52 485 #define __CLZ __clz
mbed_official 3:7a284390b0ce 486 #elif defined (ARM_MATH_CM0_FAMILY) && ((defined (__ICCARM__)) ||(defined (__GNUC__)) || defined (__TASKING__) )
mbed_official 3:7a284390b0ce 487
mbed_official 3:7a284390b0ce 488 static __INLINE uint32_t __CLZ(
mbed_official 3:7a284390b0ce 489 q31_t data);
mbed_official 3:7a284390b0ce 490
mbed_official 3:7a284390b0ce 491
mbed_official 3:7a284390b0ce 492 static __INLINE uint32_t __CLZ(
mbed_official 3:7a284390b0ce 493 q31_t data)
emilmont 1:fdd22bb7aa52 494 {
emilmont 1:fdd22bb7aa52 495 uint32_t count = 0;
emilmont 1:fdd22bb7aa52 496 uint32_t mask = 0x80000000;
emilmont 1:fdd22bb7aa52 497
emilmont 1:fdd22bb7aa52 498 while((data & mask) == 0)
emilmont 1:fdd22bb7aa52 499 {
emilmont 1:fdd22bb7aa52 500 count += 1u;
emilmont 1:fdd22bb7aa52 501 mask = mask >> 1u;
emilmont 1:fdd22bb7aa52 502 }
emilmont 1:fdd22bb7aa52 503
emilmont 1:fdd22bb7aa52 504 return (count);
emilmont 1:fdd22bb7aa52 505
emilmont 1:fdd22bb7aa52 506 }
emilmont 1:fdd22bb7aa52 507
emilmont 1:fdd22bb7aa52 508 #endif
emilmont 1:fdd22bb7aa52 509
emilmont 1:fdd22bb7aa52 510 /**
mbed_official 3:7a284390b0ce 511 * @brief Function to Calculates 1/in (reciprocal) value of Q31 Data type.
mbed_official 3:7a284390b0ce 512 */
mbed_official 3:7a284390b0ce 513
mbed_official 3:7a284390b0ce 514 static __INLINE uint32_t arm_recip_q31(
emilmont 1:fdd22bb7aa52 515 q31_t in,
emilmont 1:fdd22bb7aa52 516 q31_t * dst,
emilmont 1:fdd22bb7aa52 517 q31_t * pRecipTable)
emilmont 1:fdd22bb7aa52 518 {
emilmont 1:fdd22bb7aa52 519
emilmont 1:fdd22bb7aa52 520 uint32_t out, tempVal;
emilmont 1:fdd22bb7aa52 521 uint32_t index, i;
emilmont 1:fdd22bb7aa52 522 uint32_t signBits;
emilmont 1:fdd22bb7aa52 523
emilmont 1:fdd22bb7aa52 524 if(in > 0)
emilmont 1:fdd22bb7aa52 525 {
emilmont 1:fdd22bb7aa52 526 signBits = __CLZ(in) - 1;
emilmont 1:fdd22bb7aa52 527 }
emilmont 1:fdd22bb7aa52 528 else
emilmont 1:fdd22bb7aa52 529 {
emilmont 1:fdd22bb7aa52 530 signBits = __CLZ(-in) - 1;
emilmont 1:fdd22bb7aa52 531 }
emilmont 1:fdd22bb7aa52 532
emilmont 1:fdd22bb7aa52 533 /* Convert input sample to 1.31 format */
emilmont 1:fdd22bb7aa52 534 in = in << signBits;
emilmont 1:fdd22bb7aa52 535
emilmont 1:fdd22bb7aa52 536 /* calculation of index for initial approximated Val */
emilmont 1:fdd22bb7aa52 537 index = (uint32_t) (in >> 24u);
emilmont 1:fdd22bb7aa52 538 index = (index & INDEX_MASK);
emilmont 1:fdd22bb7aa52 539
emilmont 1:fdd22bb7aa52 540 /* 1.31 with exp 1 */
emilmont 1:fdd22bb7aa52 541 out = pRecipTable[index];
emilmont 1:fdd22bb7aa52 542
emilmont 1:fdd22bb7aa52 543 /* calculation of reciprocal value */
emilmont 1:fdd22bb7aa52 544 /* running approximation for two iterations */
emilmont 1:fdd22bb7aa52 545 for (i = 0u; i < 2u; i++)
emilmont 1:fdd22bb7aa52 546 {
emilmont 1:fdd22bb7aa52 547 tempVal = (q31_t) (((q63_t) in * out) >> 31u);
emilmont 1:fdd22bb7aa52 548 tempVal = 0x7FFFFFFF - tempVal;
emilmont 1:fdd22bb7aa52 549 /* 1.31 with exp 1 */
emilmont 1:fdd22bb7aa52 550 //out = (q31_t) (((q63_t) out * tempVal) >> 30u);
emilmont 1:fdd22bb7aa52 551 out = (q31_t) clip_q63_to_q31(((q63_t) out * tempVal) >> 30u);
emilmont 1:fdd22bb7aa52 552 }
emilmont 1:fdd22bb7aa52 553
emilmont 1:fdd22bb7aa52 554 /* write output */
emilmont 1:fdd22bb7aa52 555 *dst = out;
emilmont 1:fdd22bb7aa52 556
emilmont 1:fdd22bb7aa52 557 /* return num of signbits of out = 1/in value */
emilmont 1:fdd22bb7aa52 558 return (signBits + 1u);
emilmont 1:fdd22bb7aa52 559
emilmont 1:fdd22bb7aa52 560 }
emilmont 1:fdd22bb7aa52 561
emilmont 1:fdd22bb7aa52 562 /**
mbed_official 3:7a284390b0ce 563 * @brief Function to Calculates 1/in (reciprocal) value of Q15 Data type.
mbed_official 3:7a284390b0ce 564 */
mbed_official 3:7a284390b0ce 565 static __INLINE uint32_t arm_recip_q15(
emilmont 1:fdd22bb7aa52 566 q15_t in,
emilmont 1:fdd22bb7aa52 567 q15_t * dst,
emilmont 1:fdd22bb7aa52 568 q15_t * pRecipTable)
emilmont 1:fdd22bb7aa52 569 {
emilmont 1:fdd22bb7aa52 570
emilmont 1:fdd22bb7aa52 571 uint32_t out = 0, tempVal = 0;
emilmont 1:fdd22bb7aa52 572 uint32_t index = 0, i = 0;
emilmont 1:fdd22bb7aa52 573 uint32_t signBits = 0;
emilmont 1:fdd22bb7aa52 574
emilmont 1:fdd22bb7aa52 575 if(in > 0)
emilmont 1:fdd22bb7aa52 576 {
emilmont 1:fdd22bb7aa52 577 signBits = __CLZ(in) - 17;
emilmont 1:fdd22bb7aa52 578 }
emilmont 1:fdd22bb7aa52 579 else
emilmont 1:fdd22bb7aa52 580 {
emilmont 1:fdd22bb7aa52 581 signBits = __CLZ(-in) - 17;
emilmont 1:fdd22bb7aa52 582 }
emilmont 1:fdd22bb7aa52 583
emilmont 1:fdd22bb7aa52 584 /* Convert input sample to 1.15 format */
emilmont 1:fdd22bb7aa52 585 in = in << signBits;
emilmont 1:fdd22bb7aa52 586
emilmont 1:fdd22bb7aa52 587 /* calculation of index for initial approximated Val */
emilmont 1:fdd22bb7aa52 588 index = in >> 8;
emilmont 1:fdd22bb7aa52 589 index = (index & INDEX_MASK);
emilmont 1:fdd22bb7aa52 590
emilmont 1:fdd22bb7aa52 591 /* 1.15 with exp 1 */
emilmont 1:fdd22bb7aa52 592 out = pRecipTable[index];
emilmont 1:fdd22bb7aa52 593
emilmont 1:fdd22bb7aa52 594 /* calculation of reciprocal value */
emilmont 1:fdd22bb7aa52 595 /* running approximation for two iterations */
emilmont 1:fdd22bb7aa52 596 for (i = 0; i < 2; i++)
emilmont 1:fdd22bb7aa52 597 {
emilmont 1:fdd22bb7aa52 598 tempVal = (q15_t) (((q31_t) in * out) >> 15);
emilmont 1:fdd22bb7aa52 599 tempVal = 0x7FFF - tempVal;
emilmont 1:fdd22bb7aa52 600 /* 1.15 with exp 1 */
emilmont 1:fdd22bb7aa52 601 out = (q15_t) (((q31_t) out * tempVal) >> 14);
emilmont 1:fdd22bb7aa52 602 }
emilmont 1:fdd22bb7aa52 603
emilmont 1:fdd22bb7aa52 604 /* write output */
emilmont 1:fdd22bb7aa52 605 *dst = out;
emilmont 1:fdd22bb7aa52 606
emilmont 1:fdd22bb7aa52 607 /* return num of signbits of out = 1/in value */
emilmont 1:fdd22bb7aa52 608 return (signBits + 1);
emilmont 1:fdd22bb7aa52 609
emilmont 1:fdd22bb7aa52 610 }
emilmont 1:fdd22bb7aa52 611
emilmont 1:fdd22bb7aa52 612
emilmont 1:fdd22bb7aa52 613 /*
emilmont 1:fdd22bb7aa52 614 * @brief C custom defined intrinisic function for only M0 processors
emilmont 1:fdd22bb7aa52 615 */
mbed_official 3:7a284390b0ce 616 #if defined(ARM_MATH_CM0_FAMILY)
mbed_official 3:7a284390b0ce 617
mbed_official 3:7a284390b0ce 618 static __INLINE q31_t __SSAT(
emilmont 1:fdd22bb7aa52 619 q31_t x,
emilmont 1:fdd22bb7aa52 620 uint32_t y)
emilmont 1:fdd22bb7aa52 621 {
emilmont 1:fdd22bb7aa52 622 int32_t posMax, negMin;
emilmont 1:fdd22bb7aa52 623 uint32_t i;
emilmont 1:fdd22bb7aa52 624
emilmont 1:fdd22bb7aa52 625 posMax = 1;
emilmont 1:fdd22bb7aa52 626 for (i = 0; i < (y - 1); i++)
emilmont 1:fdd22bb7aa52 627 {
emilmont 1:fdd22bb7aa52 628 posMax = posMax * 2;
emilmont 1:fdd22bb7aa52 629 }
emilmont 1:fdd22bb7aa52 630
emilmont 1:fdd22bb7aa52 631 if(x > 0)
emilmont 1:fdd22bb7aa52 632 {
emilmont 1:fdd22bb7aa52 633 posMax = (posMax - 1);
emilmont 1:fdd22bb7aa52 634
emilmont 1:fdd22bb7aa52 635 if(x > posMax)
emilmont 1:fdd22bb7aa52 636 {
emilmont 1:fdd22bb7aa52 637 x = posMax;
emilmont 1:fdd22bb7aa52 638 }
emilmont 1:fdd22bb7aa52 639 }
emilmont 1:fdd22bb7aa52 640 else
emilmont 1:fdd22bb7aa52 641 {
emilmont 1:fdd22bb7aa52 642 negMin = -posMax;
emilmont 1:fdd22bb7aa52 643
emilmont 1:fdd22bb7aa52 644 if(x < negMin)
emilmont 1:fdd22bb7aa52 645 {
emilmont 1:fdd22bb7aa52 646 x = negMin;
emilmont 1:fdd22bb7aa52 647 }
emilmont 1:fdd22bb7aa52 648 }
emilmont 1:fdd22bb7aa52 649 return (x);
emilmont 1:fdd22bb7aa52 650
emilmont 1:fdd22bb7aa52 651
emilmont 1:fdd22bb7aa52 652 }
emilmont 1:fdd22bb7aa52 653
mbed_official 3:7a284390b0ce 654 #endif /* end of ARM_MATH_CM0_FAMILY */
emilmont 1:fdd22bb7aa52 655
emilmont 1:fdd22bb7aa52 656
emilmont 1:fdd22bb7aa52 657
emilmont 1:fdd22bb7aa52 658 /*
emilmont 1:fdd22bb7aa52 659 * @brief C custom defined intrinsic function for M3 and M0 processors
emilmont 1:fdd22bb7aa52 660 */
mbed_official 3:7a284390b0ce 661 #if defined (ARM_MATH_CM3) || defined (ARM_MATH_CM0_FAMILY)
emilmont 1:fdd22bb7aa52 662
emilmont 1:fdd22bb7aa52 663 /*
emilmont 1:fdd22bb7aa52 664 * @brief C custom defined QADD8 for M3 and M0 processors
emilmont 1:fdd22bb7aa52 665 */
mbed_official 3:7a284390b0ce 666 static __INLINE q31_t __QADD8(
emilmont 1:fdd22bb7aa52 667 q31_t x,
emilmont 1:fdd22bb7aa52 668 q31_t y)
emilmont 1:fdd22bb7aa52 669 {
emilmont 1:fdd22bb7aa52 670
emilmont 1:fdd22bb7aa52 671 q31_t sum;
emilmont 1:fdd22bb7aa52 672 q7_t r, s, t, u;
emilmont 1:fdd22bb7aa52 673
emilmont 1:fdd22bb7aa52 674 r = (q7_t) x;
emilmont 1:fdd22bb7aa52 675 s = (q7_t) y;
emilmont 1:fdd22bb7aa52 676
emilmont 1:fdd22bb7aa52 677 r = __SSAT((q31_t) (r + s), 8);
emilmont 1:fdd22bb7aa52 678 s = __SSAT(((q31_t) (((x << 16) >> 24) + ((y << 16) >> 24))), 8);
emilmont 1:fdd22bb7aa52 679 t = __SSAT(((q31_t) (((x << 8) >> 24) + ((y << 8) >> 24))), 8);
emilmont 1:fdd22bb7aa52 680 u = __SSAT(((q31_t) ((x >> 24) + (y >> 24))), 8);
emilmont 1:fdd22bb7aa52 681
emilmont 1:fdd22bb7aa52 682 sum =
emilmont 1:fdd22bb7aa52 683 (((q31_t) u << 24) & 0xFF000000) | (((q31_t) t << 16) & 0x00FF0000) |
emilmont 1:fdd22bb7aa52 684 (((q31_t) s << 8) & 0x0000FF00) | (r & 0x000000FF);
emilmont 1:fdd22bb7aa52 685
emilmont 1:fdd22bb7aa52 686 return sum;
emilmont 1:fdd22bb7aa52 687
emilmont 1:fdd22bb7aa52 688 }
emilmont 1:fdd22bb7aa52 689
emilmont 1:fdd22bb7aa52 690 /*
emilmont 1:fdd22bb7aa52 691 * @brief C custom defined QSUB8 for M3 and M0 processors
emilmont 1:fdd22bb7aa52 692 */
mbed_official 3:7a284390b0ce 693 static __INLINE q31_t __QSUB8(
emilmont 1:fdd22bb7aa52 694 q31_t x,
emilmont 1:fdd22bb7aa52 695 q31_t y)
emilmont 1:fdd22bb7aa52 696 {
emilmont 1:fdd22bb7aa52 697
emilmont 1:fdd22bb7aa52 698 q31_t sum;
emilmont 1:fdd22bb7aa52 699 q31_t r, s, t, u;
emilmont 1:fdd22bb7aa52 700
emilmont 1:fdd22bb7aa52 701 r = (q7_t) x;
emilmont 1:fdd22bb7aa52 702 s = (q7_t) y;
emilmont 1:fdd22bb7aa52 703
emilmont 1:fdd22bb7aa52 704 r = __SSAT((r - s), 8);
emilmont 1:fdd22bb7aa52 705 s = __SSAT(((q31_t) (((x << 16) >> 24) - ((y << 16) >> 24))), 8) << 8;
emilmont 1:fdd22bb7aa52 706 t = __SSAT(((q31_t) (((x << 8) >> 24) - ((y << 8) >> 24))), 8) << 16;
emilmont 1:fdd22bb7aa52 707 u = __SSAT(((q31_t) ((x >> 24) - (y >> 24))), 8) << 24;
emilmont 1:fdd22bb7aa52 708
emilmont 1:fdd22bb7aa52 709 sum =
emilmont 1:fdd22bb7aa52 710 (u & 0xFF000000) | (t & 0x00FF0000) | (s & 0x0000FF00) | (r &
emilmont 1:fdd22bb7aa52 711 0x000000FF);
emilmont 1:fdd22bb7aa52 712
emilmont 1:fdd22bb7aa52 713 return sum;
emilmont 1:fdd22bb7aa52 714 }
emilmont 1:fdd22bb7aa52 715
emilmont 1:fdd22bb7aa52 716 /*
emilmont 1:fdd22bb7aa52 717 * @brief C custom defined QADD16 for M3 and M0 processors
emilmont 1:fdd22bb7aa52 718 */
emilmont 1:fdd22bb7aa52 719
emilmont 1:fdd22bb7aa52 720 /*
emilmont 1:fdd22bb7aa52 721 * @brief C custom defined QADD16 for M3 and M0 processors
emilmont 1:fdd22bb7aa52 722 */
mbed_official 3:7a284390b0ce 723 static __INLINE q31_t __QADD16(
emilmont 1:fdd22bb7aa52 724 q31_t x,
emilmont 1:fdd22bb7aa52 725 q31_t y)
emilmont 1:fdd22bb7aa52 726 {
emilmont 1:fdd22bb7aa52 727
emilmont 1:fdd22bb7aa52 728 q31_t sum;
emilmont 1:fdd22bb7aa52 729 q31_t r, s;
emilmont 1:fdd22bb7aa52 730
emilmont 1:fdd22bb7aa52 731 r = (short) x;
emilmont 1:fdd22bb7aa52 732 s = (short) y;
emilmont 1:fdd22bb7aa52 733
emilmont 1:fdd22bb7aa52 734 r = __SSAT(r + s, 16);
emilmont 1:fdd22bb7aa52 735 s = __SSAT(((q31_t) ((x >> 16) + (y >> 16))), 16) << 16;
emilmont 1:fdd22bb7aa52 736
emilmont 1:fdd22bb7aa52 737 sum = (s & 0xFFFF0000) | (r & 0x0000FFFF);
emilmont 1:fdd22bb7aa52 738
emilmont 1:fdd22bb7aa52 739 return sum;
emilmont 1:fdd22bb7aa52 740
emilmont 1:fdd22bb7aa52 741 }
emilmont 1:fdd22bb7aa52 742
emilmont 1:fdd22bb7aa52 743 /*
emilmont 1:fdd22bb7aa52 744 * @brief C custom defined SHADD16 for M3 and M0 processors
emilmont 1:fdd22bb7aa52 745 */
mbed_official 3:7a284390b0ce 746 static __INLINE q31_t __SHADD16(
emilmont 1:fdd22bb7aa52 747 q31_t x,
emilmont 1:fdd22bb7aa52 748 q31_t y)
emilmont 1:fdd22bb7aa52 749 {
emilmont 1:fdd22bb7aa52 750
emilmont 1:fdd22bb7aa52 751 q31_t sum;
emilmont 1:fdd22bb7aa52 752 q31_t r, s;
emilmont 1:fdd22bb7aa52 753
emilmont 1:fdd22bb7aa52 754 r = (short) x;
emilmont 1:fdd22bb7aa52 755 s = (short) y;
emilmont 1:fdd22bb7aa52 756
emilmont 1:fdd22bb7aa52 757 r = ((r >> 1) + (s >> 1));
emilmont 1:fdd22bb7aa52 758 s = ((q31_t) ((x >> 17) + (y >> 17))) << 16;
emilmont 1:fdd22bb7aa52 759
emilmont 1:fdd22bb7aa52 760 sum = (s & 0xFFFF0000) | (r & 0x0000FFFF);
emilmont 1:fdd22bb7aa52 761
emilmont 1:fdd22bb7aa52 762 return sum;
emilmont 1:fdd22bb7aa52 763
emilmont 1:fdd22bb7aa52 764 }
emilmont 1:fdd22bb7aa52 765
emilmont 1:fdd22bb7aa52 766 /*
emilmont 1:fdd22bb7aa52 767 * @brief C custom defined QSUB16 for M3 and M0 processors
emilmont 1:fdd22bb7aa52 768 */
mbed_official 3:7a284390b0ce 769 static __INLINE q31_t __QSUB16(
emilmont 1:fdd22bb7aa52 770 q31_t x,
emilmont 1:fdd22bb7aa52 771 q31_t y)
emilmont 1:fdd22bb7aa52 772 {
emilmont 1:fdd22bb7aa52 773
emilmont 1:fdd22bb7aa52 774 q31_t sum;
emilmont 1:fdd22bb7aa52 775 q31_t r, s;
emilmont 1:fdd22bb7aa52 776
emilmont 1:fdd22bb7aa52 777 r = (short) x;
emilmont 1:fdd22bb7aa52 778 s = (short) y;
emilmont 1:fdd22bb7aa52 779
emilmont 1:fdd22bb7aa52 780 r = __SSAT(r - s, 16);
emilmont 1:fdd22bb7aa52 781 s = __SSAT(((q31_t) ((x >> 16) - (y >> 16))), 16) << 16;
emilmont 1:fdd22bb7aa52 782
emilmont 1:fdd22bb7aa52 783 sum = (s & 0xFFFF0000) | (r & 0x0000FFFF);
emilmont 1:fdd22bb7aa52 784
emilmont 1:fdd22bb7aa52 785 return sum;
emilmont 1:fdd22bb7aa52 786 }
emilmont 1:fdd22bb7aa52 787
emilmont 1:fdd22bb7aa52 788 /*
emilmont 1:fdd22bb7aa52 789 * @brief C custom defined SHSUB16 for M3 and M0 processors
emilmont 1:fdd22bb7aa52 790 */
mbed_official 3:7a284390b0ce 791 static __INLINE q31_t __SHSUB16(
emilmont 1:fdd22bb7aa52 792 q31_t x,
emilmont 1:fdd22bb7aa52 793 q31_t y)
emilmont 1:fdd22bb7aa52 794 {
emilmont 1:fdd22bb7aa52 795
emilmont 1:fdd22bb7aa52 796 q31_t diff;
emilmont 1:fdd22bb7aa52 797 q31_t r, s;
emilmont 1:fdd22bb7aa52 798
emilmont 1:fdd22bb7aa52 799 r = (short) x;
emilmont 1:fdd22bb7aa52 800 s = (short) y;
emilmont 1:fdd22bb7aa52 801
emilmont 1:fdd22bb7aa52 802 r = ((r >> 1) - (s >> 1));
emilmont 1:fdd22bb7aa52 803 s = (((x >> 17) - (y >> 17)) << 16);
emilmont 1:fdd22bb7aa52 804
emilmont 1:fdd22bb7aa52 805 diff = (s & 0xFFFF0000) | (r & 0x0000FFFF);
emilmont 1:fdd22bb7aa52 806
emilmont 1:fdd22bb7aa52 807 return diff;
emilmont 1:fdd22bb7aa52 808 }
emilmont 1:fdd22bb7aa52 809
emilmont 1:fdd22bb7aa52 810 /*
emilmont 1:fdd22bb7aa52 811 * @brief C custom defined QASX for M3 and M0 processors
emilmont 1:fdd22bb7aa52 812 */
mbed_official 3:7a284390b0ce 813 static __INLINE q31_t __QASX(
emilmont 1:fdd22bb7aa52 814 q31_t x,
emilmont 1:fdd22bb7aa52 815 q31_t y)
emilmont 1:fdd22bb7aa52 816 {
emilmont 1:fdd22bb7aa52 817
emilmont 1:fdd22bb7aa52 818 q31_t sum = 0;
emilmont 1:fdd22bb7aa52 819
emilmont 1:fdd22bb7aa52 820 sum =
emilmont 1:fdd22bb7aa52 821 ((sum +
emilmont 1:fdd22bb7aa52 822 clip_q31_to_q15((q31_t) ((short) (x >> 16) + (short) y))) << 16) +
emilmont 1:fdd22bb7aa52 823 clip_q31_to_q15((q31_t) ((short) x - (short) (y >> 16)));
emilmont 1:fdd22bb7aa52 824
emilmont 1:fdd22bb7aa52 825 return sum;
emilmont 1:fdd22bb7aa52 826 }
emilmont 1:fdd22bb7aa52 827
emilmont 1:fdd22bb7aa52 828 /*
emilmont 1:fdd22bb7aa52 829 * @brief C custom defined SHASX for M3 and M0 processors
emilmont 1:fdd22bb7aa52 830 */
mbed_official 3:7a284390b0ce 831 static __INLINE q31_t __SHASX(
emilmont 1:fdd22bb7aa52 832 q31_t x,
emilmont 1:fdd22bb7aa52 833 q31_t y)
emilmont 1:fdd22bb7aa52 834 {
emilmont 1:fdd22bb7aa52 835
emilmont 1:fdd22bb7aa52 836 q31_t sum;
emilmont 1:fdd22bb7aa52 837 q31_t r, s;
emilmont 1:fdd22bb7aa52 838
emilmont 1:fdd22bb7aa52 839 r = (short) x;
emilmont 1:fdd22bb7aa52 840 s = (short) y;
emilmont 1:fdd22bb7aa52 841
emilmont 1:fdd22bb7aa52 842 r = ((r >> 1) - (y >> 17));
emilmont 1:fdd22bb7aa52 843 s = (((x >> 17) + (s >> 1)) << 16);
emilmont 1:fdd22bb7aa52 844
emilmont 1:fdd22bb7aa52 845 sum = (s & 0xFFFF0000) | (r & 0x0000FFFF);
emilmont 1:fdd22bb7aa52 846
emilmont 1:fdd22bb7aa52 847 return sum;
emilmont 1:fdd22bb7aa52 848 }
emilmont 1:fdd22bb7aa52 849
emilmont 1:fdd22bb7aa52 850
emilmont 1:fdd22bb7aa52 851 /*
emilmont 1:fdd22bb7aa52 852 * @brief C custom defined QSAX for M3 and M0 processors
emilmont 1:fdd22bb7aa52 853 */
mbed_official 3:7a284390b0ce 854 static __INLINE q31_t __QSAX(
emilmont 1:fdd22bb7aa52 855 q31_t x,
emilmont 1:fdd22bb7aa52 856 q31_t y)
emilmont 1:fdd22bb7aa52 857 {
emilmont 1:fdd22bb7aa52 858
emilmont 1:fdd22bb7aa52 859 q31_t sum = 0;
emilmont 1:fdd22bb7aa52 860
emilmont 1:fdd22bb7aa52 861 sum =
emilmont 1:fdd22bb7aa52 862 ((sum +
emilmont 1:fdd22bb7aa52 863 clip_q31_to_q15((q31_t) ((short) (x >> 16) - (short) y))) << 16) +
emilmont 1:fdd22bb7aa52 864 clip_q31_to_q15((q31_t) ((short) x + (short) (y >> 16)));
emilmont 1:fdd22bb7aa52 865
emilmont 1:fdd22bb7aa52 866 return sum;
emilmont 1:fdd22bb7aa52 867 }
emilmont 1:fdd22bb7aa52 868
emilmont 1:fdd22bb7aa52 869 /*
emilmont 1:fdd22bb7aa52 870 * @brief C custom defined SHSAX for M3 and M0 processors
emilmont 1:fdd22bb7aa52 871 */
mbed_official 3:7a284390b0ce 872 static __INLINE q31_t __SHSAX(
emilmont 1:fdd22bb7aa52 873 q31_t x,
emilmont 1:fdd22bb7aa52 874 q31_t y)
emilmont 1:fdd22bb7aa52 875 {
emilmont 1:fdd22bb7aa52 876
emilmont 1:fdd22bb7aa52 877 q31_t sum;
emilmont 1:fdd22bb7aa52 878 q31_t r, s;
emilmont 1:fdd22bb7aa52 879
emilmont 1:fdd22bb7aa52 880 r = (short) x;
emilmont 1:fdd22bb7aa52 881 s = (short) y;
emilmont 1:fdd22bb7aa52 882
emilmont 1:fdd22bb7aa52 883 r = ((r >> 1) + (y >> 17));
emilmont 1:fdd22bb7aa52 884 s = (((x >> 17) - (s >> 1)) << 16);
emilmont 1:fdd22bb7aa52 885
emilmont 1:fdd22bb7aa52 886 sum = (s & 0xFFFF0000) | (r & 0x0000FFFF);
emilmont 1:fdd22bb7aa52 887
emilmont 1:fdd22bb7aa52 888 return sum;
emilmont 1:fdd22bb7aa52 889 }
emilmont 1:fdd22bb7aa52 890
emilmont 1:fdd22bb7aa52 891 /*
emilmont 1:fdd22bb7aa52 892 * @brief C custom defined SMUSDX for M3 and M0 processors
emilmont 1:fdd22bb7aa52 893 */
mbed_official 3:7a284390b0ce 894 static __INLINE q31_t __SMUSDX(
emilmont 1:fdd22bb7aa52 895 q31_t x,
emilmont 1:fdd22bb7aa52 896 q31_t y)
emilmont 1:fdd22bb7aa52 897 {
emilmont 1:fdd22bb7aa52 898
emilmont 1:fdd22bb7aa52 899 return ((q31_t) (((short) x * (short) (y >> 16)) -
emilmont 1:fdd22bb7aa52 900 ((short) (x >> 16) * (short) y)));
emilmont 1:fdd22bb7aa52 901 }
emilmont 1:fdd22bb7aa52 902
emilmont 1:fdd22bb7aa52 903 /*
emilmont 1:fdd22bb7aa52 904 * @brief C custom defined SMUADX for M3 and M0 processors
emilmont 1:fdd22bb7aa52 905 */
mbed_official 3:7a284390b0ce 906 static __INLINE q31_t __SMUADX(
emilmont 1:fdd22bb7aa52 907 q31_t x,
emilmont 1:fdd22bb7aa52 908 q31_t y)
emilmont 1:fdd22bb7aa52 909 {
emilmont 1:fdd22bb7aa52 910
emilmont 1:fdd22bb7aa52 911 return ((q31_t) (((short) x * (short) (y >> 16)) +
emilmont 1:fdd22bb7aa52 912 ((short) (x >> 16) * (short) y)));
emilmont 1:fdd22bb7aa52 913 }
emilmont 1:fdd22bb7aa52 914
emilmont 1:fdd22bb7aa52 915 /*
emilmont 1:fdd22bb7aa52 916 * @brief C custom defined QADD for M3 and M0 processors
emilmont 1:fdd22bb7aa52 917 */
mbed_official 3:7a284390b0ce 918 static __INLINE q31_t __QADD(
emilmont 1:fdd22bb7aa52 919 q31_t x,
emilmont 1:fdd22bb7aa52 920 q31_t y)
emilmont 1:fdd22bb7aa52 921 {
emilmont 1:fdd22bb7aa52 922 return clip_q63_to_q31((q63_t) x + y);
emilmont 1:fdd22bb7aa52 923 }
emilmont 1:fdd22bb7aa52 924
emilmont 1:fdd22bb7aa52 925 /*
emilmont 1:fdd22bb7aa52 926 * @brief C custom defined QSUB for M3 and M0 processors
emilmont 1:fdd22bb7aa52 927 */
mbed_official 3:7a284390b0ce 928 static __INLINE q31_t __QSUB(
emilmont 1:fdd22bb7aa52 929 q31_t x,
emilmont 1:fdd22bb7aa52 930 q31_t y)
emilmont 1:fdd22bb7aa52 931 {
emilmont 1:fdd22bb7aa52 932 return clip_q63_to_q31((q63_t) x - y);
emilmont 1:fdd22bb7aa52 933 }
emilmont 1:fdd22bb7aa52 934
emilmont 1:fdd22bb7aa52 935 /*
emilmont 1:fdd22bb7aa52 936 * @brief C custom defined SMLAD for M3 and M0 processors
emilmont 1:fdd22bb7aa52 937 */
mbed_official 3:7a284390b0ce 938 static __INLINE q31_t __SMLAD(
emilmont 1:fdd22bb7aa52 939 q31_t x,
emilmont 1:fdd22bb7aa52 940 q31_t y,
emilmont 1:fdd22bb7aa52 941 q31_t sum)
emilmont 1:fdd22bb7aa52 942 {
emilmont 1:fdd22bb7aa52 943
emilmont 1:fdd22bb7aa52 944 return (sum + ((short) (x >> 16) * (short) (y >> 16)) +
emilmont 1:fdd22bb7aa52 945 ((short) x * (short) y));
emilmont 1:fdd22bb7aa52 946 }
emilmont 1:fdd22bb7aa52 947
emilmont 1:fdd22bb7aa52 948 /*
emilmont 1:fdd22bb7aa52 949 * @brief C custom defined SMLADX for M3 and M0 processors
emilmont 1:fdd22bb7aa52 950 */
mbed_official 3:7a284390b0ce 951 static __INLINE q31_t __SMLADX(
emilmont 1:fdd22bb7aa52 952 q31_t x,
emilmont 1:fdd22bb7aa52 953 q31_t y,
emilmont 1:fdd22bb7aa52 954 q31_t sum)
emilmont 1:fdd22bb7aa52 955 {
emilmont 1:fdd22bb7aa52 956
emilmont 1:fdd22bb7aa52 957 return (sum + ((short) (x >> 16) * (short) (y)) +
emilmont 1:fdd22bb7aa52 958 ((short) x * (short) (y >> 16)));
emilmont 1:fdd22bb7aa52 959 }
emilmont 1:fdd22bb7aa52 960
emilmont 1:fdd22bb7aa52 961 /*
emilmont 1:fdd22bb7aa52 962 * @brief C custom defined SMLSDX for M3 and M0 processors
emilmont 1:fdd22bb7aa52 963 */
mbed_official 3:7a284390b0ce 964 static __INLINE q31_t __SMLSDX(
emilmont 1:fdd22bb7aa52 965 q31_t x,
emilmont 1:fdd22bb7aa52 966 q31_t y,
emilmont 1:fdd22bb7aa52 967 q31_t sum)
emilmont 1:fdd22bb7aa52 968 {
emilmont 1:fdd22bb7aa52 969
emilmont 1:fdd22bb7aa52 970 return (sum - ((short) (x >> 16) * (short) (y)) +
emilmont 1:fdd22bb7aa52 971 ((short) x * (short) (y >> 16)));
emilmont 1:fdd22bb7aa52 972 }
emilmont 1:fdd22bb7aa52 973
emilmont 1:fdd22bb7aa52 974 /*
emilmont 1:fdd22bb7aa52 975 * @brief C custom defined SMLALD for M3 and M0 processors
emilmont 1:fdd22bb7aa52 976 */
mbed_official 3:7a284390b0ce 977 static __INLINE q63_t __SMLALD(
emilmont 1:fdd22bb7aa52 978 q31_t x,
emilmont 1:fdd22bb7aa52 979 q31_t y,
emilmont 1:fdd22bb7aa52 980 q63_t sum)
emilmont 1:fdd22bb7aa52 981 {
emilmont 1:fdd22bb7aa52 982
emilmont 1:fdd22bb7aa52 983 return (sum + ((short) (x >> 16) * (short) (y >> 16)) +
emilmont 1:fdd22bb7aa52 984 ((short) x * (short) y));
emilmont 1:fdd22bb7aa52 985 }
emilmont 1:fdd22bb7aa52 986
emilmont 1:fdd22bb7aa52 987 /*
emilmont 1:fdd22bb7aa52 988 * @brief C custom defined SMLALDX for M3 and M0 processors
emilmont 1:fdd22bb7aa52 989 */
mbed_official 3:7a284390b0ce 990 static __INLINE q63_t __SMLALDX(
emilmont 1:fdd22bb7aa52 991 q31_t x,
emilmont 1:fdd22bb7aa52 992 q31_t y,
emilmont 1:fdd22bb7aa52 993 q63_t sum)
emilmont 1:fdd22bb7aa52 994 {
emilmont 1:fdd22bb7aa52 995
emilmont 1:fdd22bb7aa52 996 return (sum + ((short) (x >> 16) * (short) y)) +
emilmont 1:fdd22bb7aa52 997 ((short) x * (short) (y >> 16));
emilmont 1:fdd22bb7aa52 998 }
emilmont 1:fdd22bb7aa52 999
emilmont 1:fdd22bb7aa52 1000 /*
emilmont 1:fdd22bb7aa52 1001 * @brief C custom defined SMUAD for M3 and M0 processors
emilmont 1:fdd22bb7aa52 1002 */
mbed_official 3:7a284390b0ce 1003 static __INLINE q31_t __SMUAD(
emilmont 1:fdd22bb7aa52 1004 q31_t x,
emilmont 1:fdd22bb7aa52 1005 q31_t y)
emilmont 1:fdd22bb7aa52 1006 {
emilmont 1:fdd22bb7aa52 1007
emilmont 1:fdd22bb7aa52 1008 return (((x >> 16) * (y >> 16)) +
emilmont 1:fdd22bb7aa52 1009 (((x << 16) >> 16) * ((y << 16) >> 16)));
emilmont 1:fdd22bb7aa52 1010 }
emilmont 1:fdd22bb7aa52 1011
emilmont 1:fdd22bb7aa52 1012 /*
emilmont 1:fdd22bb7aa52 1013 * @brief C custom defined SMUSD for M3 and M0 processors
emilmont 1:fdd22bb7aa52 1014 */
mbed_official 3:7a284390b0ce 1015 static __INLINE q31_t __SMUSD(
emilmont 1:fdd22bb7aa52 1016 q31_t x,
emilmont 1:fdd22bb7aa52 1017 q31_t y)
emilmont 1:fdd22bb7aa52 1018 {
emilmont 1:fdd22bb7aa52 1019
emilmont 1:fdd22bb7aa52 1020 return (-((x >> 16) * (y >> 16)) +
emilmont 1:fdd22bb7aa52 1021 (((x << 16) >> 16) * ((y << 16) >> 16)));
emilmont 1:fdd22bb7aa52 1022 }
emilmont 1:fdd22bb7aa52 1023
emilmont 1:fdd22bb7aa52 1024
emilmont 1:fdd22bb7aa52 1025 /*
emilmont 1:fdd22bb7aa52 1026 * @brief C custom defined SXTB16 for M3 and M0 processors
emilmont 1:fdd22bb7aa52 1027 */
mbed_official 3:7a284390b0ce 1028 static __INLINE q31_t __SXTB16(
emilmont 1:fdd22bb7aa52 1029 q31_t x)
emilmont 1:fdd22bb7aa52 1030 {
emilmont 1:fdd22bb7aa52 1031
emilmont 1:fdd22bb7aa52 1032 return ((((x << 24) >> 24) & 0x0000FFFF) |
emilmont 1:fdd22bb7aa52 1033 (((x << 8) >> 8) & 0xFFFF0000));
emilmont 1:fdd22bb7aa52 1034 }
emilmont 1:fdd22bb7aa52 1035
emilmont 1:fdd22bb7aa52 1036
mbed_official 3:7a284390b0ce 1037 #endif /* defined (ARM_MATH_CM3) || defined (ARM_MATH_CM0_FAMILY) */
emilmont 1:fdd22bb7aa52 1038
emilmont 1:fdd22bb7aa52 1039
emilmont 1:fdd22bb7aa52 1040 /**
emilmont 1:fdd22bb7aa52 1041 * @brief Instance structure for the Q7 FIR filter.
emilmont 1:fdd22bb7aa52 1042 */
emilmont 1:fdd22bb7aa52 1043 typedef struct
emilmont 1:fdd22bb7aa52 1044 {
emilmont 1:fdd22bb7aa52 1045 uint16_t numTaps; /**< number of filter coefficients in the filter. */
emilmont 1:fdd22bb7aa52 1046 q7_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 1047 q7_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/
emilmont 1:fdd22bb7aa52 1048 } arm_fir_instance_q7;
emilmont 1:fdd22bb7aa52 1049
emilmont 1:fdd22bb7aa52 1050 /**
emilmont 1:fdd22bb7aa52 1051 * @brief Instance structure for the Q15 FIR filter.
emilmont 1:fdd22bb7aa52 1052 */
emilmont 1:fdd22bb7aa52 1053 typedef struct
emilmont 1:fdd22bb7aa52 1054 {
emilmont 1:fdd22bb7aa52 1055 uint16_t numTaps; /**< number of filter coefficients in the filter. */
emilmont 1:fdd22bb7aa52 1056 q15_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 1057 q15_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/
emilmont 1:fdd22bb7aa52 1058 } arm_fir_instance_q15;
emilmont 1:fdd22bb7aa52 1059
emilmont 1:fdd22bb7aa52 1060 /**
emilmont 1:fdd22bb7aa52 1061 * @brief Instance structure for the Q31 FIR filter.
emilmont 1:fdd22bb7aa52 1062 */
emilmont 1:fdd22bb7aa52 1063 typedef struct
emilmont 1:fdd22bb7aa52 1064 {
emilmont 1:fdd22bb7aa52 1065 uint16_t numTaps; /**< number of filter coefficients in the filter. */
emilmont 1:fdd22bb7aa52 1066 q31_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 1067 q31_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */
emilmont 1:fdd22bb7aa52 1068 } arm_fir_instance_q31;
emilmont 1:fdd22bb7aa52 1069
emilmont 1:fdd22bb7aa52 1070 /**
emilmont 1:fdd22bb7aa52 1071 * @brief Instance structure for the floating-point FIR filter.
emilmont 1:fdd22bb7aa52 1072 */
emilmont 1:fdd22bb7aa52 1073 typedef struct
emilmont 1:fdd22bb7aa52 1074 {
emilmont 1:fdd22bb7aa52 1075 uint16_t numTaps; /**< number of filter coefficients in the filter. */
emilmont 1:fdd22bb7aa52 1076 float32_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 1077 float32_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */
emilmont 1:fdd22bb7aa52 1078 } arm_fir_instance_f32;
emilmont 1:fdd22bb7aa52 1079
emilmont 1:fdd22bb7aa52 1080
emilmont 1:fdd22bb7aa52 1081 /**
emilmont 1:fdd22bb7aa52 1082 * @brief Processing function for the Q7 FIR filter.
emilmont 1:fdd22bb7aa52 1083 * @param[in] *S points to an instance of the Q7 FIR filter structure.
emilmont 1:fdd22bb7aa52 1084 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 1085 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 1086 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 1087 * @return none.
emilmont 1:fdd22bb7aa52 1088 */
emilmont 1:fdd22bb7aa52 1089 void arm_fir_q7(
emilmont 1:fdd22bb7aa52 1090 const arm_fir_instance_q7 * S,
emilmont 1:fdd22bb7aa52 1091 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 1092 q7_t * pDst,
emilmont 1:fdd22bb7aa52 1093 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1094
emilmont 1:fdd22bb7aa52 1095
emilmont 1:fdd22bb7aa52 1096 /**
emilmont 1:fdd22bb7aa52 1097 * @brief Initialization function for the Q7 FIR filter.
emilmont 1:fdd22bb7aa52 1098 * @param[in,out] *S points to an instance of the Q7 FIR structure.
emilmont 1:fdd22bb7aa52 1099 * @param[in] numTaps Number of filter coefficients in the filter.
emilmont 1:fdd22bb7aa52 1100 * @param[in] *pCoeffs points to the filter coefficients.
emilmont 1:fdd22bb7aa52 1101 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 1102 * @param[in] blockSize number of samples that are processed.
emilmont 1:fdd22bb7aa52 1103 * @return none
emilmont 1:fdd22bb7aa52 1104 */
emilmont 1:fdd22bb7aa52 1105 void arm_fir_init_q7(
emilmont 1:fdd22bb7aa52 1106 arm_fir_instance_q7 * S,
emilmont 1:fdd22bb7aa52 1107 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 1108 q7_t * pCoeffs,
emilmont 1:fdd22bb7aa52 1109 q7_t * pState,
emilmont 1:fdd22bb7aa52 1110 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1111
emilmont 1:fdd22bb7aa52 1112
emilmont 1:fdd22bb7aa52 1113 /**
emilmont 1:fdd22bb7aa52 1114 * @brief Processing function for the Q15 FIR filter.
emilmont 1:fdd22bb7aa52 1115 * @param[in] *S points to an instance of the Q15 FIR structure.
emilmont 1:fdd22bb7aa52 1116 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 1117 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 1118 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 1119 * @return none.
emilmont 1:fdd22bb7aa52 1120 */
emilmont 1:fdd22bb7aa52 1121 void arm_fir_q15(
emilmont 1:fdd22bb7aa52 1122 const arm_fir_instance_q15 * S,
emilmont 1:fdd22bb7aa52 1123 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 1124 q15_t * pDst,
emilmont 1:fdd22bb7aa52 1125 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1126
emilmont 1:fdd22bb7aa52 1127 /**
emilmont 1:fdd22bb7aa52 1128 * @brief Processing function for the fast Q15 FIR filter for Cortex-M3 and Cortex-M4.
emilmont 1:fdd22bb7aa52 1129 * @param[in] *S points to an instance of the Q15 FIR filter structure.
emilmont 1:fdd22bb7aa52 1130 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 1131 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 1132 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 1133 * @return none.
emilmont 1:fdd22bb7aa52 1134 */
emilmont 1:fdd22bb7aa52 1135 void arm_fir_fast_q15(
emilmont 1:fdd22bb7aa52 1136 const arm_fir_instance_q15 * S,
emilmont 1:fdd22bb7aa52 1137 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 1138 q15_t * pDst,
emilmont 1:fdd22bb7aa52 1139 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1140
emilmont 1:fdd22bb7aa52 1141 /**
emilmont 1:fdd22bb7aa52 1142 * @brief Initialization function for the Q15 FIR filter.
emilmont 1:fdd22bb7aa52 1143 * @param[in,out] *S points to an instance of the Q15 FIR filter structure.
emilmont 1:fdd22bb7aa52 1144 * @param[in] numTaps Number of filter coefficients in the filter. Must be even and greater than or equal to 4.
emilmont 1:fdd22bb7aa52 1145 * @param[in] *pCoeffs points to the filter coefficients.
emilmont 1:fdd22bb7aa52 1146 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 1147 * @param[in] blockSize number of samples that are processed at a time.
emilmont 1:fdd22bb7aa52 1148 * @return The function returns ARM_MATH_SUCCESS if initialization was successful or ARM_MATH_ARGUMENT_ERROR if
emilmont 1:fdd22bb7aa52 1149 * <code>numTaps</code> is not a supported value.
emilmont 1:fdd22bb7aa52 1150 */
emilmont 1:fdd22bb7aa52 1151
emilmont 1:fdd22bb7aa52 1152 arm_status arm_fir_init_q15(
emilmont 1:fdd22bb7aa52 1153 arm_fir_instance_q15 * S,
emilmont 1:fdd22bb7aa52 1154 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 1155 q15_t * pCoeffs,
emilmont 1:fdd22bb7aa52 1156 q15_t * pState,
emilmont 1:fdd22bb7aa52 1157 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1158
emilmont 1:fdd22bb7aa52 1159 /**
emilmont 1:fdd22bb7aa52 1160 * @brief Processing function for the Q31 FIR filter.
emilmont 1:fdd22bb7aa52 1161 * @param[in] *S points to an instance of the Q31 FIR filter structure.
emilmont 1:fdd22bb7aa52 1162 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 1163 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 1164 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 1165 * @return none.
emilmont 1:fdd22bb7aa52 1166 */
emilmont 1:fdd22bb7aa52 1167 void arm_fir_q31(
emilmont 1:fdd22bb7aa52 1168 const arm_fir_instance_q31 * S,
emilmont 1:fdd22bb7aa52 1169 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 1170 q31_t * pDst,
emilmont 1:fdd22bb7aa52 1171 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1172
emilmont 1:fdd22bb7aa52 1173 /**
emilmont 1:fdd22bb7aa52 1174 * @brief Processing function for the fast Q31 FIR filter for Cortex-M3 and Cortex-M4.
emilmont 1:fdd22bb7aa52 1175 * @param[in] *S points to an instance of the Q31 FIR structure.
emilmont 1:fdd22bb7aa52 1176 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 1177 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 1178 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 1179 * @return none.
emilmont 1:fdd22bb7aa52 1180 */
emilmont 1:fdd22bb7aa52 1181 void arm_fir_fast_q31(
emilmont 1:fdd22bb7aa52 1182 const arm_fir_instance_q31 * S,
emilmont 1:fdd22bb7aa52 1183 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 1184 q31_t * pDst,
emilmont 1:fdd22bb7aa52 1185 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1186
emilmont 1:fdd22bb7aa52 1187 /**
emilmont 1:fdd22bb7aa52 1188 * @brief Initialization function for the Q31 FIR filter.
emilmont 1:fdd22bb7aa52 1189 * @param[in,out] *S points to an instance of the Q31 FIR structure.
emilmont 2:da51fb522205 1190 * @param[in] numTaps Number of filter coefficients in the filter.
emilmont 2:da51fb522205 1191 * @param[in] *pCoeffs points to the filter coefficients.
emilmont 2:da51fb522205 1192 * @param[in] *pState points to the state buffer.
emilmont 2:da51fb522205 1193 * @param[in] blockSize number of samples that are processed at a time.
emilmont 2:da51fb522205 1194 * @return none.
emilmont 1:fdd22bb7aa52 1195 */
emilmont 1:fdd22bb7aa52 1196 void arm_fir_init_q31(
emilmont 1:fdd22bb7aa52 1197 arm_fir_instance_q31 * S,
emilmont 1:fdd22bb7aa52 1198 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 1199 q31_t * pCoeffs,
emilmont 1:fdd22bb7aa52 1200 q31_t * pState,
emilmont 1:fdd22bb7aa52 1201 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1202
emilmont 1:fdd22bb7aa52 1203 /**
emilmont 1:fdd22bb7aa52 1204 * @brief Processing function for the floating-point FIR filter.
emilmont 1:fdd22bb7aa52 1205 * @param[in] *S points to an instance of the floating-point FIR structure.
emilmont 1:fdd22bb7aa52 1206 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 1207 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 1208 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 1209 * @return none.
emilmont 1:fdd22bb7aa52 1210 */
emilmont 1:fdd22bb7aa52 1211 void arm_fir_f32(
emilmont 1:fdd22bb7aa52 1212 const arm_fir_instance_f32 * S,
emilmont 1:fdd22bb7aa52 1213 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 1214 float32_t * pDst,
emilmont 1:fdd22bb7aa52 1215 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1216
emilmont 1:fdd22bb7aa52 1217 /**
emilmont 1:fdd22bb7aa52 1218 * @brief Initialization function for the floating-point FIR filter.
emilmont 1:fdd22bb7aa52 1219 * @param[in,out] *S points to an instance of the floating-point FIR filter structure.
emilmont 2:da51fb522205 1220 * @param[in] numTaps Number of filter coefficients in the filter.
emilmont 2:da51fb522205 1221 * @param[in] *pCoeffs points to the filter coefficients.
emilmont 2:da51fb522205 1222 * @param[in] *pState points to the state buffer.
emilmont 2:da51fb522205 1223 * @param[in] blockSize number of samples that are processed at a time.
emilmont 2:da51fb522205 1224 * @return none.
emilmont 1:fdd22bb7aa52 1225 */
emilmont 1:fdd22bb7aa52 1226 void arm_fir_init_f32(
emilmont 1:fdd22bb7aa52 1227 arm_fir_instance_f32 * S,
emilmont 1:fdd22bb7aa52 1228 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 1229 float32_t * pCoeffs,
emilmont 1:fdd22bb7aa52 1230 float32_t * pState,
emilmont 1:fdd22bb7aa52 1231 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1232
emilmont 1:fdd22bb7aa52 1233
emilmont 1:fdd22bb7aa52 1234 /**
emilmont 1:fdd22bb7aa52 1235 * @brief Instance structure for the Q15 Biquad cascade filter.
emilmont 1:fdd22bb7aa52 1236 */
emilmont 1:fdd22bb7aa52 1237 typedef struct
emilmont 1:fdd22bb7aa52 1238 {
emilmont 1:fdd22bb7aa52 1239 int8_t numStages; /**< number of 2nd order stages in the filter. Overall order is 2*numStages. */
emilmont 1:fdd22bb7aa52 1240 q15_t *pState; /**< Points to the array of state coefficients. The array is of length 4*numStages. */
emilmont 1:fdd22bb7aa52 1241 q15_t *pCoeffs; /**< Points to the array of coefficients. The array is of length 5*numStages. */
emilmont 1:fdd22bb7aa52 1242 int8_t postShift; /**< Additional shift, in bits, applied to each output sample. */
emilmont 1:fdd22bb7aa52 1243
emilmont 1:fdd22bb7aa52 1244 } arm_biquad_casd_df1_inst_q15;
emilmont 1:fdd22bb7aa52 1245
emilmont 1:fdd22bb7aa52 1246
emilmont 1:fdd22bb7aa52 1247 /**
emilmont 1:fdd22bb7aa52 1248 * @brief Instance structure for the Q31 Biquad cascade filter.
emilmont 1:fdd22bb7aa52 1249 */
emilmont 1:fdd22bb7aa52 1250 typedef struct
emilmont 1:fdd22bb7aa52 1251 {
emilmont 1:fdd22bb7aa52 1252 uint32_t numStages; /**< number of 2nd order stages in the filter. Overall order is 2*numStages. */
emilmont 1:fdd22bb7aa52 1253 q31_t *pState; /**< Points to the array of state coefficients. The array is of length 4*numStages. */
emilmont 1:fdd22bb7aa52 1254 q31_t *pCoeffs; /**< Points to the array of coefficients. The array is of length 5*numStages. */
emilmont 1:fdd22bb7aa52 1255 uint8_t postShift; /**< Additional shift, in bits, applied to each output sample. */
emilmont 1:fdd22bb7aa52 1256
emilmont 1:fdd22bb7aa52 1257 } arm_biquad_casd_df1_inst_q31;
emilmont 1:fdd22bb7aa52 1258
emilmont 1:fdd22bb7aa52 1259 /**
emilmont 1:fdd22bb7aa52 1260 * @brief Instance structure for the floating-point Biquad cascade filter.
emilmont 1:fdd22bb7aa52 1261 */
emilmont 1:fdd22bb7aa52 1262 typedef struct
emilmont 1:fdd22bb7aa52 1263 {
emilmont 1:fdd22bb7aa52 1264 uint32_t numStages; /**< number of 2nd order stages in the filter. Overall order is 2*numStages. */
emilmont 1:fdd22bb7aa52 1265 float32_t *pState; /**< Points to the array of state coefficients. The array is of length 4*numStages. */
emilmont 1:fdd22bb7aa52 1266 float32_t *pCoeffs; /**< Points to the array of coefficients. The array is of length 5*numStages. */
emilmont 1:fdd22bb7aa52 1267
emilmont 1:fdd22bb7aa52 1268
emilmont 1:fdd22bb7aa52 1269 } arm_biquad_casd_df1_inst_f32;
emilmont 1:fdd22bb7aa52 1270
emilmont 1:fdd22bb7aa52 1271
emilmont 1:fdd22bb7aa52 1272
emilmont 1:fdd22bb7aa52 1273 /**
emilmont 1:fdd22bb7aa52 1274 * @brief Processing function for the Q15 Biquad cascade filter.
emilmont 1:fdd22bb7aa52 1275 * @param[in] *S points to an instance of the Q15 Biquad cascade structure.
emilmont 1:fdd22bb7aa52 1276 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 1277 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 1278 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 1279 * @return none.
emilmont 1:fdd22bb7aa52 1280 */
emilmont 1:fdd22bb7aa52 1281
emilmont 1:fdd22bb7aa52 1282 void arm_biquad_cascade_df1_q15(
emilmont 1:fdd22bb7aa52 1283 const arm_biquad_casd_df1_inst_q15 * S,
emilmont 1:fdd22bb7aa52 1284 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 1285 q15_t * pDst,
emilmont 1:fdd22bb7aa52 1286 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1287
emilmont 1:fdd22bb7aa52 1288 /**
emilmont 1:fdd22bb7aa52 1289 * @brief Initialization function for the Q15 Biquad cascade filter.
emilmont 1:fdd22bb7aa52 1290 * @param[in,out] *S points to an instance of the Q15 Biquad cascade structure.
emilmont 1:fdd22bb7aa52 1291 * @param[in] numStages number of 2nd order stages in the filter.
emilmont 1:fdd22bb7aa52 1292 * @param[in] *pCoeffs points to the filter coefficients.
emilmont 1:fdd22bb7aa52 1293 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 1294 * @param[in] postShift Shift to be applied to the output. Varies according to the coefficients format
emilmont 1:fdd22bb7aa52 1295 * @return none
emilmont 1:fdd22bb7aa52 1296 */
emilmont 1:fdd22bb7aa52 1297
emilmont 1:fdd22bb7aa52 1298 void arm_biquad_cascade_df1_init_q15(
emilmont 1:fdd22bb7aa52 1299 arm_biquad_casd_df1_inst_q15 * S,
emilmont 1:fdd22bb7aa52 1300 uint8_t numStages,
emilmont 1:fdd22bb7aa52 1301 q15_t * pCoeffs,
emilmont 1:fdd22bb7aa52 1302 q15_t * pState,
emilmont 1:fdd22bb7aa52 1303 int8_t postShift);
emilmont 1:fdd22bb7aa52 1304
emilmont 1:fdd22bb7aa52 1305
emilmont 1:fdd22bb7aa52 1306 /**
emilmont 1:fdd22bb7aa52 1307 * @brief Fast but less precise processing function for the Q15 Biquad cascade filter for Cortex-M3 and Cortex-M4.
emilmont 1:fdd22bb7aa52 1308 * @param[in] *S points to an instance of the Q15 Biquad cascade structure.
emilmont 1:fdd22bb7aa52 1309 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 1310 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 1311 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 1312 * @return none.
emilmont 1:fdd22bb7aa52 1313 */
emilmont 1:fdd22bb7aa52 1314
emilmont 1:fdd22bb7aa52 1315 void arm_biquad_cascade_df1_fast_q15(
emilmont 1:fdd22bb7aa52 1316 const arm_biquad_casd_df1_inst_q15 * S,
emilmont 1:fdd22bb7aa52 1317 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 1318 q15_t * pDst,
emilmont 1:fdd22bb7aa52 1319 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1320
emilmont 1:fdd22bb7aa52 1321
emilmont 1:fdd22bb7aa52 1322 /**
emilmont 1:fdd22bb7aa52 1323 * @brief Processing function for the Q31 Biquad cascade filter
emilmont 1:fdd22bb7aa52 1324 * @param[in] *S points to an instance of the Q31 Biquad cascade structure.
emilmont 1:fdd22bb7aa52 1325 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 1326 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 1327 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 1328 * @return none.
emilmont 1:fdd22bb7aa52 1329 */
emilmont 1:fdd22bb7aa52 1330
emilmont 1:fdd22bb7aa52 1331 void arm_biquad_cascade_df1_q31(
emilmont 1:fdd22bb7aa52 1332 const arm_biquad_casd_df1_inst_q31 * S,
emilmont 1:fdd22bb7aa52 1333 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 1334 q31_t * pDst,
emilmont 1:fdd22bb7aa52 1335 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1336
emilmont 1:fdd22bb7aa52 1337 /**
emilmont 1:fdd22bb7aa52 1338 * @brief Fast but less precise processing function for the Q31 Biquad cascade filter for Cortex-M3 and Cortex-M4.
emilmont 1:fdd22bb7aa52 1339 * @param[in] *S points to an instance of the Q31 Biquad cascade structure.
emilmont 1:fdd22bb7aa52 1340 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 1341 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 1342 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 1343 * @return none.
emilmont 1:fdd22bb7aa52 1344 */
emilmont 1:fdd22bb7aa52 1345
emilmont 1:fdd22bb7aa52 1346 void arm_biquad_cascade_df1_fast_q31(
emilmont 1:fdd22bb7aa52 1347 const arm_biquad_casd_df1_inst_q31 * S,
emilmont 1:fdd22bb7aa52 1348 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 1349 q31_t * pDst,
emilmont 1:fdd22bb7aa52 1350 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1351
emilmont 1:fdd22bb7aa52 1352 /**
emilmont 1:fdd22bb7aa52 1353 * @brief Initialization function for the Q31 Biquad cascade filter.
emilmont 1:fdd22bb7aa52 1354 * @param[in,out] *S points to an instance of the Q31 Biquad cascade structure.
emilmont 1:fdd22bb7aa52 1355 * @param[in] numStages number of 2nd order stages in the filter.
emilmont 1:fdd22bb7aa52 1356 * @param[in] *pCoeffs points to the filter coefficients.
emilmont 1:fdd22bb7aa52 1357 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 1358 * @param[in] postShift Shift to be applied to the output. Varies according to the coefficients format
emilmont 1:fdd22bb7aa52 1359 * @return none
emilmont 1:fdd22bb7aa52 1360 */
emilmont 1:fdd22bb7aa52 1361
emilmont 1:fdd22bb7aa52 1362 void arm_biquad_cascade_df1_init_q31(
emilmont 1:fdd22bb7aa52 1363 arm_biquad_casd_df1_inst_q31 * S,
emilmont 1:fdd22bb7aa52 1364 uint8_t numStages,
emilmont 1:fdd22bb7aa52 1365 q31_t * pCoeffs,
emilmont 1:fdd22bb7aa52 1366 q31_t * pState,
emilmont 1:fdd22bb7aa52 1367 int8_t postShift);
emilmont 1:fdd22bb7aa52 1368
emilmont 1:fdd22bb7aa52 1369 /**
emilmont 1:fdd22bb7aa52 1370 * @brief Processing function for the floating-point Biquad cascade filter.
emilmont 1:fdd22bb7aa52 1371 * @param[in] *S points to an instance of the floating-point Biquad cascade structure.
emilmont 1:fdd22bb7aa52 1372 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 1373 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 1374 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 1375 * @return none.
emilmont 1:fdd22bb7aa52 1376 */
emilmont 1:fdd22bb7aa52 1377
emilmont 1:fdd22bb7aa52 1378 void arm_biquad_cascade_df1_f32(
emilmont 1:fdd22bb7aa52 1379 const arm_biquad_casd_df1_inst_f32 * S,
emilmont 1:fdd22bb7aa52 1380 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 1381 float32_t * pDst,
emilmont 1:fdd22bb7aa52 1382 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1383
emilmont 1:fdd22bb7aa52 1384 /**
emilmont 1:fdd22bb7aa52 1385 * @brief Initialization function for the floating-point Biquad cascade filter.
emilmont 1:fdd22bb7aa52 1386 * @param[in,out] *S points to an instance of the floating-point Biquad cascade structure.
emilmont 1:fdd22bb7aa52 1387 * @param[in] numStages number of 2nd order stages in the filter.
emilmont 1:fdd22bb7aa52 1388 * @param[in] *pCoeffs points to the filter coefficients.
emilmont 1:fdd22bb7aa52 1389 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 1390 * @return none
emilmont 1:fdd22bb7aa52 1391 */
emilmont 1:fdd22bb7aa52 1392
emilmont 1:fdd22bb7aa52 1393 void arm_biquad_cascade_df1_init_f32(
emilmont 1:fdd22bb7aa52 1394 arm_biquad_casd_df1_inst_f32 * S,
emilmont 1:fdd22bb7aa52 1395 uint8_t numStages,
emilmont 1:fdd22bb7aa52 1396 float32_t * pCoeffs,
emilmont 1:fdd22bb7aa52 1397 float32_t * pState);
emilmont 1:fdd22bb7aa52 1398
emilmont 1:fdd22bb7aa52 1399
emilmont 1:fdd22bb7aa52 1400 /**
emilmont 1:fdd22bb7aa52 1401 * @brief Instance structure for the floating-point matrix structure.
emilmont 1:fdd22bb7aa52 1402 */
emilmont 1:fdd22bb7aa52 1403
emilmont 1:fdd22bb7aa52 1404 typedef struct
emilmont 1:fdd22bb7aa52 1405 {
emilmont 1:fdd22bb7aa52 1406 uint16_t numRows; /**< number of rows of the matrix. */
emilmont 1:fdd22bb7aa52 1407 uint16_t numCols; /**< number of columns of the matrix. */
emilmont 1:fdd22bb7aa52 1408 float32_t *pData; /**< points to the data of the matrix. */
emilmont 1:fdd22bb7aa52 1409 } arm_matrix_instance_f32;
emilmont 1:fdd22bb7aa52 1410
emilmont 1:fdd22bb7aa52 1411 /**
emilmont 1:fdd22bb7aa52 1412 * @brief Instance structure for the Q15 matrix structure.
emilmont 1:fdd22bb7aa52 1413 */
emilmont 1:fdd22bb7aa52 1414
emilmont 1:fdd22bb7aa52 1415 typedef struct
emilmont 1:fdd22bb7aa52 1416 {
emilmont 1:fdd22bb7aa52 1417 uint16_t numRows; /**< number of rows of the matrix. */
emilmont 1:fdd22bb7aa52 1418 uint16_t numCols; /**< number of columns of the matrix. */
emilmont 1:fdd22bb7aa52 1419 q15_t *pData; /**< points to the data of the matrix. */
emilmont 1:fdd22bb7aa52 1420
emilmont 1:fdd22bb7aa52 1421 } arm_matrix_instance_q15;
emilmont 1:fdd22bb7aa52 1422
emilmont 1:fdd22bb7aa52 1423 /**
emilmont 1:fdd22bb7aa52 1424 * @brief Instance structure for the Q31 matrix structure.
emilmont 1:fdd22bb7aa52 1425 */
emilmont 1:fdd22bb7aa52 1426
emilmont 1:fdd22bb7aa52 1427 typedef struct
emilmont 1:fdd22bb7aa52 1428 {
emilmont 1:fdd22bb7aa52 1429 uint16_t numRows; /**< number of rows of the matrix. */
emilmont 1:fdd22bb7aa52 1430 uint16_t numCols; /**< number of columns of the matrix. */
emilmont 1:fdd22bb7aa52 1431 q31_t *pData; /**< points to the data of the matrix. */
emilmont 1:fdd22bb7aa52 1432
emilmont 1:fdd22bb7aa52 1433 } arm_matrix_instance_q31;
emilmont 1:fdd22bb7aa52 1434
emilmont 1:fdd22bb7aa52 1435
emilmont 1:fdd22bb7aa52 1436
emilmont 1:fdd22bb7aa52 1437 /**
emilmont 1:fdd22bb7aa52 1438 * @brief Floating-point matrix addition.
emilmont 1:fdd22bb7aa52 1439 * @param[in] *pSrcA points to the first input matrix structure
emilmont 1:fdd22bb7aa52 1440 * @param[in] *pSrcB points to the second input matrix structure
emilmont 1:fdd22bb7aa52 1441 * @param[out] *pDst points to output matrix structure
emilmont 1:fdd22bb7aa52 1442 * @return The function returns either
emilmont 1:fdd22bb7aa52 1443 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1444 */
emilmont 1:fdd22bb7aa52 1445
emilmont 1:fdd22bb7aa52 1446 arm_status arm_mat_add_f32(
emilmont 1:fdd22bb7aa52 1447 const arm_matrix_instance_f32 * pSrcA,
emilmont 1:fdd22bb7aa52 1448 const arm_matrix_instance_f32 * pSrcB,
emilmont 1:fdd22bb7aa52 1449 arm_matrix_instance_f32 * pDst);
emilmont 1:fdd22bb7aa52 1450
emilmont 1:fdd22bb7aa52 1451 /**
emilmont 1:fdd22bb7aa52 1452 * @brief Q15 matrix addition.
emilmont 1:fdd22bb7aa52 1453 * @param[in] *pSrcA points to the first input matrix structure
emilmont 1:fdd22bb7aa52 1454 * @param[in] *pSrcB points to the second input matrix structure
emilmont 1:fdd22bb7aa52 1455 * @param[out] *pDst points to output matrix structure
emilmont 1:fdd22bb7aa52 1456 * @return The function returns either
emilmont 1:fdd22bb7aa52 1457 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1458 */
emilmont 1:fdd22bb7aa52 1459
emilmont 1:fdd22bb7aa52 1460 arm_status arm_mat_add_q15(
emilmont 1:fdd22bb7aa52 1461 const arm_matrix_instance_q15 * pSrcA,
emilmont 1:fdd22bb7aa52 1462 const arm_matrix_instance_q15 * pSrcB,
emilmont 1:fdd22bb7aa52 1463 arm_matrix_instance_q15 * pDst);
emilmont 1:fdd22bb7aa52 1464
emilmont 1:fdd22bb7aa52 1465 /**
emilmont 1:fdd22bb7aa52 1466 * @brief Q31 matrix addition.
emilmont 1:fdd22bb7aa52 1467 * @param[in] *pSrcA points to the first input matrix structure
emilmont 1:fdd22bb7aa52 1468 * @param[in] *pSrcB points to the second input matrix structure
emilmont 1:fdd22bb7aa52 1469 * @param[out] *pDst points to output matrix structure
emilmont 1:fdd22bb7aa52 1470 * @return The function returns either
emilmont 1:fdd22bb7aa52 1471 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1472 */
emilmont 1:fdd22bb7aa52 1473
emilmont 1:fdd22bb7aa52 1474 arm_status arm_mat_add_q31(
emilmont 1:fdd22bb7aa52 1475 const arm_matrix_instance_q31 * pSrcA,
emilmont 1:fdd22bb7aa52 1476 const arm_matrix_instance_q31 * pSrcB,
emilmont 1:fdd22bb7aa52 1477 arm_matrix_instance_q31 * pDst);
emilmont 1:fdd22bb7aa52 1478
emilmont 1:fdd22bb7aa52 1479
emilmont 1:fdd22bb7aa52 1480 /**
emilmont 1:fdd22bb7aa52 1481 * @brief Floating-point matrix transpose.
emilmont 1:fdd22bb7aa52 1482 * @param[in] *pSrc points to the input matrix
emilmont 1:fdd22bb7aa52 1483 * @param[out] *pDst points to the output matrix
emilmont 2:da51fb522205 1484 * @return The function returns either <code>ARM_MATH_SIZE_MISMATCH</code>
emilmont 1:fdd22bb7aa52 1485 * or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1486 */
emilmont 1:fdd22bb7aa52 1487
emilmont 1:fdd22bb7aa52 1488 arm_status arm_mat_trans_f32(
emilmont 1:fdd22bb7aa52 1489 const arm_matrix_instance_f32 * pSrc,
emilmont 1:fdd22bb7aa52 1490 arm_matrix_instance_f32 * pDst);
emilmont 1:fdd22bb7aa52 1491
emilmont 1:fdd22bb7aa52 1492
emilmont 1:fdd22bb7aa52 1493 /**
emilmont 1:fdd22bb7aa52 1494 * @brief Q15 matrix transpose.
emilmont 1:fdd22bb7aa52 1495 * @param[in] *pSrc points to the input matrix
emilmont 1:fdd22bb7aa52 1496 * @param[out] *pDst points to the output matrix
emilmont 2:da51fb522205 1497 * @return The function returns either <code>ARM_MATH_SIZE_MISMATCH</code>
emilmont 1:fdd22bb7aa52 1498 * or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1499 */
emilmont 1:fdd22bb7aa52 1500
emilmont 1:fdd22bb7aa52 1501 arm_status arm_mat_trans_q15(
emilmont 1:fdd22bb7aa52 1502 const arm_matrix_instance_q15 * pSrc,
emilmont 1:fdd22bb7aa52 1503 arm_matrix_instance_q15 * pDst);
emilmont 1:fdd22bb7aa52 1504
emilmont 1:fdd22bb7aa52 1505 /**
emilmont 1:fdd22bb7aa52 1506 * @brief Q31 matrix transpose.
emilmont 1:fdd22bb7aa52 1507 * @param[in] *pSrc points to the input matrix
emilmont 1:fdd22bb7aa52 1508 * @param[out] *pDst points to the output matrix
emilmont 2:da51fb522205 1509 * @return The function returns either <code>ARM_MATH_SIZE_MISMATCH</code>
emilmont 1:fdd22bb7aa52 1510 * or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1511 */
emilmont 1:fdd22bb7aa52 1512
emilmont 1:fdd22bb7aa52 1513 arm_status arm_mat_trans_q31(
emilmont 1:fdd22bb7aa52 1514 const arm_matrix_instance_q31 * pSrc,
emilmont 1:fdd22bb7aa52 1515 arm_matrix_instance_q31 * pDst);
emilmont 1:fdd22bb7aa52 1516
emilmont 1:fdd22bb7aa52 1517
emilmont 1:fdd22bb7aa52 1518 /**
emilmont 1:fdd22bb7aa52 1519 * @brief Floating-point matrix multiplication
emilmont 1:fdd22bb7aa52 1520 * @param[in] *pSrcA points to the first input matrix structure
emilmont 1:fdd22bb7aa52 1521 * @param[in] *pSrcB points to the second input matrix structure
emilmont 1:fdd22bb7aa52 1522 * @param[out] *pDst points to output matrix structure
emilmont 1:fdd22bb7aa52 1523 * @return The function returns either
emilmont 1:fdd22bb7aa52 1524 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1525 */
emilmont 1:fdd22bb7aa52 1526
emilmont 1:fdd22bb7aa52 1527 arm_status arm_mat_mult_f32(
emilmont 1:fdd22bb7aa52 1528 const arm_matrix_instance_f32 * pSrcA,
emilmont 1:fdd22bb7aa52 1529 const arm_matrix_instance_f32 * pSrcB,
emilmont 1:fdd22bb7aa52 1530 arm_matrix_instance_f32 * pDst);
emilmont 1:fdd22bb7aa52 1531
emilmont 1:fdd22bb7aa52 1532 /**
emilmont 1:fdd22bb7aa52 1533 * @brief Q15 matrix multiplication
emilmont 1:fdd22bb7aa52 1534 * @param[in] *pSrcA points to the first input matrix structure
emilmont 1:fdd22bb7aa52 1535 * @param[in] *pSrcB points to the second input matrix structure
emilmont 1:fdd22bb7aa52 1536 * @param[out] *pDst points to output matrix structure
mbed_official 3:7a284390b0ce 1537 * @param[in] *pState points to the array for storing intermediate results
emilmont 1:fdd22bb7aa52 1538 * @return The function returns either
emilmont 1:fdd22bb7aa52 1539 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1540 */
emilmont 1:fdd22bb7aa52 1541
emilmont 1:fdd22bb7aa52 1542 arm_status arm_mat_mult_q15(
emilmont 1:fdd22bb7aa52 1543 const arm_matrix_instance_q15 * pSrcA,
emilmont 1:fdd22bb7aa52 1544 const arm_matrix_instance_q15 * pSrcB,
emilmont 1:fdd22bb7aa52 1545 arm_matrix_instance_q15 * pDst,
emilmont 1:fdd22bb7aa52 1546 q15_t * pState);
emilmont 1:fdd22bb7aa52 1547
emilmont 1:fdd22bb7aa52 1548 /**
emilmont 1:fdd22bb7aa52 1549 * @brief Q15 matrix multiplication (fast variant) for Cortex-M3 and Cortex-M4
emilmont 1:fdd22bb7aa52 1550 * @param[in] *pSrcA points to the first input matrix structure
emilmont 1:fdd22bb7aa52 1551 * @param[in] *pSrcB points to the second input matrix structure
emilmont 1:fdd22bb7aa52 1552 * @param[out] *pDst points to output matrix structure
mbed_official 3:7a284390b0ce 1553 * @param[in] *pState points to the array for storing intermediate results
emilmont 1:fdd22bb7aa52 1554 * @return The function returns either
emilmont 1:fdd22bb7aa52 1555 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1556 */
emilmont 1:fdd22bb7aa52 1557
emilmont 1:fdd22bb7aa52 1558 arm_status arm_mat_mult_fast_q15(
emilmont 1:fdd22bb7aa52 1559 const arm_matrix_instance_q15 * pSrcA,
emilmont 1:fdd22bb7aa52 1560 const arm_matrix_instance_q15 * pSrcB,
emilmont 1:fdd22bb7aa52 1561 arm_matrix_instance_q15 * pDst,
emilmont 1:fdd22bb7aa52 1562 q15_t * pState);
emilmont 1:fdd22bb7aa52 1563
emilmont 1:fdd22bb7aa52 1564 /**
emilmont 1:fdd22bb7aa52 1565 * @brief Q31 matrix multiplication
emilmont 1:fdd22bb7aa52 1566 * @param[in] *pSrcA points to the first input matrix structure
emilmont 1:fdd22bb7aa52 1567 * @param[in] *pSrcB points to the second input matrix structure
emilmont 1:fdd22bb7aa52 1568 * @param[out] *pDst points to output matrix structure
emilmont 1:fdd22bb7aa52 1569 * @return The function returns either
emilmont 1:fdd22bb7aa52 1570 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1571 */
emilmont 1:fdd22bb7aa52 1572
emilmont 1:fdd22bb7aa52 1573 arm_status arm_mat_mult_q31(
emilmont 1:fdd22bb7aa52 1574 const arm_matrix_instance_q31 * pSrcA,
emilmont 1:fdd22bb7aa52 1575 const arm_matrix_instance_q31 * pSrcB,
emilmont 1:fdd22bb7aa52 1576 arm_matrix_instance_q31 * pDst);
emilmont 1:fdd22bb7aa52 1577
emilmont 1:fdd22bb7aa52 1578 /**
emilmont 1:fdd22bb7aa52 1579 * @brief Q31 matrix multiplication (fast variant) for Cortex-M3 and Cortex-M4
emilmont 1:fdd22bb7aa52 1580 * @param[in] *pSrcA points to the first input matrix structure
emilmont 1:fdd22bb7aa52 1581 * @param[in] *pSrcB points to the second input matrix structure
emilmont 1:fdd22bb7aa52 1582 * @param[out] *pDst points to output matrix structure
emilmont 1:fdd22bb7aa52 1583 * @return The function returns either
emilmont 1:fdd22bb7aa52 1584 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1585 */
emilmont 1:fdd22bb7aa52 1586
emilmont 1:fdd22bb7aa52 1587 arm_status arm_mat_mult_fast_q31(
emilmont 1:fdd22bb7aa52 1588 const arm_matrix_instance_q31 * pSrcA,
emilmont 1:fdd22bb7aa52 1589 const arm_matrix_instance_q31 * pSrcB,
emilmont 1:fdd22bb7aa52 1590 arm_matrix_instance_q31 * pDst);
emilmont 1:fdd22bb7aa52 1591
emilmont 1:fdd22bb7aa52 1592
emilmont 1:fdd22bb7aa52 1593 /**
emilmont 1:fdd22bb7aa52 1594 * @brief Floating-point matrix subtraction
emilmont 1:fdd22bb7aa52 1595 * @param[in] *pSrcA points to the first input matrix structure
emilmont 1:fdd22bb7aa52 1596 * @param[in] *pSrcB points to the second input matrix structure
emilmont 1:fdd22bb7aa52 1597 * @param[out] *pDst points to output matrix structure
emilmont 1:fdd22bb7aa52 1598 * @return The function returns either
emilmont 1:fdd22bb7aa52 1599 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1600 */
emilmont 1:fdd22bb7aa52 1601
emilmont 1:fdd22bb7aa52 1602 arm_status arm_mat_sub_f32(
emilmont 1:fdd22bb7aa52 1603 const arm_matrix_instance_f32 * pSrcA,
emilmont 1:fdd22bb7aa52 1604 const arm_matrix_instance_f32 * pSrcB,
emilmont 1:fdd22bb7aa52 1605 arm_matrix_instance_f32 * pDst);
emilmont 1:fdd22bb7aa52 1606
emilmont 1:fdd22bb7aa52 1607 /**
emilmont 1:fdd22bb7aa52 1608 * @brief Q15 matrix subtraction
emilmont 1:fdd22bb7aa52 1609 * @param[in] *pSrcA points to the first input matrix structure
emilmont 1:fdd22bb7aa52 1610 * @param[in] *pSrcB points to the second input matrix structure
emilmont 1:fdd22bb7aa52 1611 * @param[out] *pDst points to output matrix structure
emilmont 1:fdd22bb7aa52 1612 * @return The function returns either
emilmont 1:fdd22bb7aa52 1613 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1614 */
emilmont 1:fdd22bb7aa52 1615
emilmont 1:fdd22bb7aa52 1616 arm_status arm_mat_sub_q15(
emilmont 1:fdd22bb7aa52 1617 const arm_matrix_instance_q15 * pSrcA,
emilmont 1:fdd22bb7aa52 1618 const arm_matrix_instance_q15 * pSrcB,
emilmont 1:fdd22bb7aa52 1619 arm_matrix_instance_q15 * pDst);
emilmont 1:fdd22bb7aa52 1620
emilmont 1:fdd22bb7aa52 1621 /**
emilmont 1:fdd22bb7aa52 1622 * @brief Q31 matrix subtraction
emilmont 1:fdd22bb7aa52 1623 * @param[in] *pSrcA points to the first input matrix structure
emilmont 1:fdd22bb7aa52 1624 * @param[in] *pSrcB points to the second input matrix structure
emilmont 1:fdd22bb7aa52 1625 * @param[out] *pDst points to output matrix structure
emilmont 1:fdd22bb7aa52 1626 * @return The function returns either
emilmont 1:fdd22bb7aa52 1627 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1628 */
emilmont 1:fdd22bb7aa52 1629
emilmont 1:fdd22bb7aa52 1630 arm_status arm_mat_sub_q31(
emilmont 1:fdd22bb7aa52 1631 const arm_matrix_instance_q31 * pSrcA,
emilmont 1:fdd22bb7aa52 1632 const arm_matrix_instance_q31 * pSrcB,
emilmont 1:fdd22bb7aa52 1633 arm_matrix_instance_q31 * pDst);
emilmont 1:fdd22bb7aa52 1634
emilmont 1:fdd22bb7aa52 1635 /**
emilmont 1:fdd22bb7aa52 1636 * @brief Floating-point matrix scaling.
emilmont 1:fdd22bb7aa52 1637 * @param[in] *pSrc points to the input matrix
emilmont 1:fdd22bb7aa52 1638 * @param[in] scale scale factor
emilmont 1:fdd22bb7aa52 1639 * @param[out] *pDst points to the output matrix
emilmont 1:fdd22bb7aa52 1640 * @return The function returns either
emilmont 1:fdd22bb7aa52 1641 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1642 */
emilmont 1:fdd22bb7aa52 1643
emilmont 1:fdd22bb7aa52 1644 arm_status arm_mat_scale_f32(
emilmont 1:fdd22bb7aa52 1645 const arm_matrix_instance_f32 * pSrc,
emilmont 1:fdd22bb7aa52 1646 float32_t scale,
emilmont 1:fdd22bb7aa52 1647 arm_matrix_instance_f32 * pDst);
emilmont 1:fdd22bb7aa52 1648
emilmont 1:fdd22bb7aa52 1649 /**
emilmont 1:fdd22bb7aa52 1650 * @brief Q15 matrix scaling.
emilmont 1:fdd22bb7aa52 1651 * @param[in] *pSrc points to input matrix
emilmont 1:fdd22bb7aa52 1652 * @param[in] scaleFract fractional portion of the scale factor
emilmont 1:fdd22bb7aa52 1653 * @param[in] shift number of bits to shift the result by
emilmont 1:fdd22bb7aa52 1654 * @param[out] *pDst points to output matrix
emilmont 1:fdd22bb7aa52 1655 * @return The function returns either
emilmont 1:fdd22bb7aa52 1656 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1657 */
emilmont 1:fdd22bb7aa52 1658
emilmont 1:fdd22bb7aa52 1659 arm_status arm_mat_scale_q15(
emilmont 1:fdd22bb7aa52 1660 const arm_matrix_instance_q15 * pSrc,
emilmont 1:fdd22bb7aa52 1661 q15_t scaleFract,
emilmont 1:fdd22bb7aa52 1662 int32_t shift,
emilmont 1:fdd22bb7aa52 1663 arm_matrix_instance_q15 * pDst);
emilmont 1:fdd22bb7aa52 1664
emilmont 1:fdd22bb7aa52 1665 /**
emilmont 1:fdd22bb7aa52 1666 * @brief Q31 matrix scaling.
emilmont 1:fdd22bb7aa52 1667 * @param[in] *pSrc points to input matrix
emilmont 1:fdd22bb7aa52 1668 * @param[in] scaleFract fractional portion of the scale factor
emilmont 1:fdd22bb7aa52 1669 * @param[in] shift number of bits to shift the result by
emilmont 1:fdd22bb7aa52 1670 * @param[out] *pDst points to output matrix structure
emilmont 1:fdd22bb7aa52 1671 * @return The function returns either
emilmont 1:fdd22bb7aa52 1672 * <code>ARM_MATH_SIZE_MISMATCH</code> or <code>ARM_MATH_SUCCESS</code> based on the outcome of size checking.
emilmont 1:fdd22bb7aa52 1673 */
emilmont 1:fdd22bb7aa52 1674
emilmont 1:fdd22bb7aa52 1675 arm_status arm_mat_scale_q31(
emilmont 1:fdd22bb7aa52 1676 const arm_matrix_instance_q31 * pSrc,
emilmont 1:fdd22bb7aa52 1677 q31_t scaleFract,
emilmont 1:fdd22bb7aa52 1678 int32_t shift,
emilmont 1:fdd22bb7aa52 1679 arm_matrix_instance_q31 * pDst);
emilmont 1:fdd22bb7aa52 1680
emilmont 1:fdd22bb7aa52 1681
emilmont 1:fdd22bb7aa52 1682 /**
emilmont 1:fdd22bb7aa52 1683 * @brief Q31 matrix initialization.
emilmont 1:fdd22bb7aa52 1684 * @param[in,out] *S points to an instance of the floating-point matrix structure.
emilmont 1:fdd22bb7aa52 1685 * @param[in] nRows number of rows in the matrix.
emilmont 1:fdd22bb7aa52 1686 * @param[in] nColumns number of columns in the matrix.
emilmont 2:da51fb522205 1687 * @param[in] *pData points to the matrix data array.
emilmont 1:fdd22bb7aa52 1688 * @return none
emilmont 1:fdd22bb7aa52 1689 */
emilmont 1:fdd22bb7aa52 1690
emilmont 1:fdd22bb7aa52 1691 void arm_mat_init_q31(
emilmont 1:fdd22bb7aa52 1692 arm_matrix_instance_q31 * S,
emilmont 1:fdd22bb7aa52 1693 uint16_t nRows,
emilmont 1:fdd22bb7aa52 1694 uint16_t nColumns,
emilmont 1:fdd22bb7aa52 1695 q31_t * pData);
emilmont 1:fdd22bb7aa52 1696
emilmont 1:fdd22bb7aa52 1697 /**
emilmont 1:fdd22bb7aa52 1698 * @brief Q15 matrix initialization.
emilmont 1:fdd22bb7aa52 1699 * @param[in,out] *S points to an instance of the floating-point matrix structure.
emilmont 1:fdd22bb7aa52 1700 * @param[in] nRows number of rows in the matrix.
emilmont 1:fdd22bb7aa52 1701 * @param[in] nColumns number of columns in the matrix.
emilmont 2:da51fb522205 1702 * @param[in] *pData points to the matrix data array.
emilmont 1:fdd22bb7aa52 1703 * @return none
emilmont 1:fdd22bb7aa52 1704 */
emilmont 1:fdd22bb7aa52 1705
emilmont 1:fdd22bb7aa52 1706 void arm_mat_init_q15(
emilmont 1:fdd22bb7aa52 1707 arm_matrix_instance_q15 * S,
emilmont 1:fdd22bb7aa52 1708 uint16_t nRows,
emilmont 1:fdd22bb7aa52 1709 uint16_t nColumns,
emilmont 1:fdd22bb7aa52 1710 q15_t * pData);
emilmont 1:fdd22bb7aa52 1711
emilmont 1:fdd22bb7aa52 1712 /**
emilmont 1:fdd22bb7aa52 1713 * @brief Floating-point matrix initialization.
emilmont 1:fdd22bb7aa52 1714 * @param[in,out] *S points to an instance of the floating-point matrix structure.
emilmont 1:fdd22bb7aa52 1715 * @param[in] nRows number of rows in the matrix.
emilmont 1:fdd22bb7aa52 1716 * @param[in] nColumns number of columns in the matrix.
emilmont 2:da51fb522205 1717 * @param[in] *pData points to the matrix data array.
emilmont 1:fdd22bb7aa52 1718 * @return none
emilmont 1:fdd22bb7aa52 1719 */
emilmont 1:fdd22bb7aa52 1720
emilmont 1:fdd22bb7aa52 1721 void arm_mat_init_f32(
emilmont 1:fdd22bb7aa52 1722 arm_matrix_instance_f32 * S,
emilmont 1:fdd22bb7aa52 1723 uint16_t nRows,
emilmont 1:fdd22bb7aa52 1724 uint16_t nColumns,
emilmont 1:fdd22bb7aa52 1725 float32_t * pData);
emilmont 1:fdd22bb7aa52 1726
emilmont 1:fdd22bb7aa52 1727
emilmont 1:fdd22bb7aa52 1728
emilmont 1:fdd22bb7aa52 1729 /**
emilmont 1:fdd22bb7aa52 1730 * @brief Instance structure for the Q15 PID Control.
emilmont 1:fdd22bb7aa52 1731 */
emilmont 1:fdd22bb7aa52 1732 typedef struct
emilmont 1:fdd22bb7aa52 1733 {
emilmont 1:fdd22bb7aa52 1734 q15_t A0; /**< The derived gain, A0 = Kp + Ki + Kd . */
mbed_official 3:7a284390b0ce 1735 #ifdef ARM_MATH_CM0_FAMILY
emilmont 1:fdd22bb7aa52 1736 q15_t A1;
emilmont 1:fdd22bb7aa52 1737 q15_t A2;
emilmont 1:fdd22bb7aa52 1738 #else
emilmont 1:fdd22bb7aa52 1739 q31_t A1; /**< The derived gain A1 = -Kp - 2Kd | Kd.*/
emilmont 1:fdd22bb7aa52 1740 #endif
emilmont 1:fdd22bb7aa52 1741 q15_t state[3]; /**< The state array of length 3. */
emilmont 1:fdd22bb7aa52 1742 q15_t Kp; /**< The proportional gain. */
emilmont 1:fdd22bb7aa52 1743 q15_t Ki; /**< The integral gain. */
emilmont 1:fdd22bb7aa52 1744 q15_t Kd; /**< The derivative gain. */
emilmont 1:fdd22bb7aa52 1745 } arm_pid_instance_q15;
emilmont 1:fdd22bb7aa52 1746
emilmont 1:fdd22bb7aa52 1747 /**
emilmont 1:fdd22bb7aa52 1748 * @brief Instance structure for the Q31 PID Control.
emilmont 1:fdd22bb7aa52 1749 */
emilmont 1:fdd22bb7aa52 1750 typedef struct
emilmont 1:fdd22bb7aa52 1751 {
emilmont 1:fdd22bb7aa52 1752 q31_t A0; /**< The derived gain, A0 = Kp + Ki + Kd . */
emilmont 1:fdd22bb7aa52 1753 q31_t A1; /**< The derived gain, A1 = -Kp - 2Kd. */
emilmont 1:fdd22bb7aa52 1754 q31_t A2; /**< The derived gain, A2 = Kd . */
emilmont 1:fdd22bb7aa52 1755 q31_t state[3]; /**< The state array of length 3. */
emilmont 1:fdd22bb7aa52 1756 q31_t Kp; /**< The proportional gain. */
emilmont 1:fdd22bb7aa52 1757 q31_t Ki; /**< The integral gain. */
emilmont 1:fdd22bb7aa52 1758 q31_t Kd; /**< The derivative gain. */
emilmont 1:fdd22bb7aa52 1759
emilmont 1:fdd22bb7aa52 1760 } arm_pid_instance_q31;
emilmont 1:fdd22bb7aa52 1761
emilmont 1:fdd22bb7aa52 1762 /**
emilmont 1:fdd22bb7aa52 1763 * @brief Instance structure for the floating-point PID Control.
emilmont 1:fdd22bb7aa52 1764 */
emilmont 1:fdd22bb7aa52 1765 typedef struct
emilmont 1:fdd22bb7aa52 1766 {
emilmont 1:fdd22bb7aa52 1767 float32_t A0; /**< The derived gain, A0 = Kp + Ki + Kd . */
emilmont 1:fdd22bb7aa52 1768 float32_t A1; /**< The derived gain, A1 = -Kp - 2Kd. */
emilmont 1:fdd22bb7aa52 1769 float32_t A2; /**< The derived gain, A2 = Kd . */
emilmont 1:fdd22bb7aa52 1770 float32_t state[3]; /**< The state array of length 3. */
emilmont 1:fdd22bb7aa52 1771 float32_t Kp; /**< The proportional gain. */
emilmont 1:fdd22bb7aa52 1772 float32_t Ki; /**< The integral gain. */
emilmont 1:fdd22bb7aa52 1773 float32_t Kd; /**< The derivative gain. */
emilmont 1:fdd22bb7aa52 1774 } arm_pid_instance_f32;
emilmont 1:fdd22bb7aa52 1775
emilmont 1:fdd22bb7aa52 1776
emilmont 1:fdd22bb7aa52 1777
emilmont 1:fdd22bb7aa52 1778 /**
emilmont 1:fdd22bb7aa52 1779 * @brief Initialization function for the floating-point PID Control.
emilmont 1:fdd22bb7aa52 1780 * @param[in,out] *S points to an instance of the PID structure.
emilmont 1:fdd22bb7aa52 1781 * @param[in] resetStateFlag flag to reset the state. 0 = no change in state 1 = reset the state.
emilmont 1:fdd22bb7aa52 1782 * @return none.
emilmont 1:fdd22bb7aa52 1783 */
emilmont 1:fdd22bb7aa52 1784 void arm_pid_init_f32(
emilmont 1:fdd22bb7aa52 1785 arm_pid_instance_f32 * S,
emilmont 1:fdd22bb7aa52 1786 int32_t resetStateFlag);
emilmont 1:fdd22bb7aa52 1787
emilmont 1:fdd22bb7aa52 1788 /**
emilmont 1:fdd22bb7aa52 1789 * @brief Reset function for the floating-point PID Control.
emilmont 1:fdd22bb7aa52 1790 * @param[in,out] *S is an instance of the floating-point PID Control structure
emilmont 1:fdd22bb7aa52 1791 * @return none
emilmont 1:fdd22bb7aa52 1792 */
emilmont 1:fdd22bb7aa52 1793 void arm_pid_reset_f32(
emilmont 1:fdd22bb7aa52 1794 arm_pid_instance_f32 * S);
emilmont 1:fdd22bb7aa52 1795
emilmont 1:fdd22bb7aa52 1796
emilmont 1:fdd22bb7aa52 1797 /**
emilmont 1:fdd22bb7aa52 1798 * @brief Initialization function for the Q31 PID Control.
emilmont 1:fdd22bb7aa52 1799 * @param[in,out] *S points to an instance of the Q15 PID structure.
emilmont 1:fdd22bb7aa52 1800 * @param[in] resetStateFlag flag to reset the state. 0 = no change in state 1 = reset the state.
emilmont 1:fdd22bb7aa52 1801 * @return none.
emilmont 1:fdd22bb7aa52 1802 */
emilmont 1:fdd22bb7aa52 1803 void arm_pid_init_q31(
emilmont 1:fdd22bb7aa52 1804 arm_pid_instance_q31 * S,
emilmont 1:fdd22bb7aa52 1805 int32_t resetStateFlag);
emilmont 1:fdd22bb7aa52 1806
emilmont 1:fdd22bb7aa52 1807
emilmont 1:fdd22bb7aa52 1808 /**
emilmont 1:fdd22bb7aa52 1809 * @brief Reset function for the Q31 PID Control.
emilmont 1:fdd22bb7aa52 1810 * @param[in,out] *S points to an instance of the Q31 PID Control structure
emilmont 1:fdd22bb7aa52 1811 * @return none
emilmont 1:fdd22bb7aa52 1812 */
emilmont 1:fdd22bb7aa52 1813
emilmont 1:fdd22bb7aa52 1814 void arm_pid_reset_q31(
emilmont 1:fdd22bb7aa52 1815 arm_pid_instance_q31 * S);
emilmont 1:fdd22bb7aa52 1816
emilmont 1:fdd22bb7aa52 1817 /**
emilmont 1:fdd22bb7aa52 1818 * @brief Initialization function for the Q15 PID Control.
emilmont 1:fdd22bb7aa52 1819 * @param[in,out] *S points to an instance of the Q15 PID structure.
emilmont 1:fdd22bb7aa52 1820 * @param[in] resetStateFlag flag to reset the state. 0 = no change in state 1 = reset the state.
emilmont 1:fdd22bb7aa52 1821 * @return none.
emilmont 1:fdd22bb7aa52 1822 */
emilmont 1:fdd22bb7aa52 1823 void arm_pid_init_q15(
emilmont 1:fdd22bb7aa52 1824 arm_pid_instance_q15 * S,
emilmont 1:fdd22bb7aa52 1825 int32_t resetStateFlag);
emilmont 1:fdd22bb7aa52 1826
emilmont 1:fdd22bb7aa52 1827 /**
emilmont 1:fdd22bb7aa52 1828 * @brief Reset function for the Q15 PID Control.
emilmont 1:fdd22bb7aa52 1829 * @param[in,out] *S points to an instance of the q15 PID Control structure
emilmont 1:fdd22bb7aa52 1830 * @return none
emilmont 1:fdd22bb7aa52 1831 */
emilmont 1:fdd22bb7aa52 1832 void arm_pid_reset_q15(
emilmont 1:fdd22bb7aa52 1833 arm_pid_instance_q15 * S);
emilmont 1:fdd22bb7aa52 1834
emilmont 1:fdd22bb7aa52 1835
emilmont 1:fdd22bb7aa52 1836 /**
emilmont 1:fdd22bb7aa52 1837 * @brief Instance structure for the floating-point Linear Interpolate function.
emilmont 1:fdd22bb7aa52 1838 */
emilmont 1:fdd22bb7aa52 1839 typedef struct
emilmont 1:fdd22bb7aa52 1840 {
emilmont 1:fdd22bb7aa52 1841 uint32_t nValues; /**< nValues */
emilmont 1:fdd22bb7aa52 1842 float32_t x1; /**< x1 */
emilmont 1:fdd22bb7aa52 1843 float32_t xSpacing; /**< xSpacing */
emilmont 1:fdd22bb7aa52 1844 float32_t *pYData; /**< pointer to the table of Y values */
emilmont 1:fdd22bb7aa52 1845 } arm_linear_interp_instance_f32;
emilmont 1:fdd22bb7aa52 1846
emilmont 1:fdd22bb7aa52 1847 /**
emilmont 1:fdd22bb7aa52 1848 * @brief Instance structure for the floating-point bilinear interpolation function.
emilmont 1:fdd22bb7aa52 1849 */
emilmont 1:fdd22bb7aa52 1850
emilmont 1:fdd22bb7aa52 1851 typedef struct
emilmont 1:fdd22bb7aa52 1852 {
emilmont 1:fdd22bb7aa52 1853 uint16_t numRows; /**< number of rows in the data table. */
emilmont 1:fdd22bb7aa52 1854 uint16_t numCols; /**< number of columns in the data table. */
emilmont 1:fdd22bb7aa52 1855 float32_t *pData; /**< points to the data table. */
emilmont 1:fdd22bb7aa52 1856 } arm_bilinear_interp_instance_f32;
emilmont 1:fdd22bb7aa52 1857
emilmont 1:fdd22bb7aa52 1858 /**
emilmont 1:fdd22bb7aa52 1859 * @brief Instance structure for the Q31 bilinear interpolation function.
emilmont 1:fdd22bb7aa52 1860 */
emilmont 1:fdd22bb7aa52 1861
emilmont 1:fdd22bb7aa52 1862 typedef struct
emilmont 1:fdd22bb7aa52 1863 {
emilmont 1:fdd22bb7aa52 1864 uint16_t numRows; /**< number of rows in the data table. */
emilmont 1:fdd22bb7aa52 1865 uint16_t numCols; /**< number of columns in the data table. */
emilmont 1:fdd22bb7aa52 1866 q31_t *pData; /**< points to the data table. */
emilmont 1:fdd22bb7aa52 1867 } arm_bilinear_interp_instance_q31;
emilmont 1:fdd22bb7aa52 1868
emilmont 1:fdd22bb7aa52 1869 /**
emilmont 1:fdd22bb7aa52 1870 * @brief Instance structure for the Q15 bilinear interpolation function.
emilmont 1:fdd22bb7aa52 1871 */
emilmont 1:fdd22bb7aa52 1872
emilmont 1:fdd22bb7aa52 1873 typedef struct
emilmont 1:fdd22bb7aa52 1874 {
emilmont 1:fdd22bb7aa52 1875 uint16_t numRows; /**< number of rows in the data table. */
emilmont 1:fdd22bb7aa52 1876 uint16_t numCols; /**< number of columns in the data table. */
emilmont 1:fdd22bb7aa52 1877 q15_t *pData; /**< points to the data table. */
emilmont 1:fdd22bb7aa52 1878 } arm_bilinear_interp_instance_q15;
emilmont 1:fdd22bb7aa52 1879
emilmont 1:fdd22bb7aa52 1880 /**
emilmont 1:fdd22bb7aa52 1881 * @brief Instance structure for the Q15 bilinear interpolation function.
emilmont 1:fdd22bb7aa52 1882 */
emilmont 1:fdd22bb7aa52 1883
emilmont 1:fdd22bb7aa52 1884 typedef struct
emilmont 1:fdd22bb7aa52 1885 {
emilmont 1:fdd22bb7aa52 1886 uint16_t numRows; /**< number of rows in the data table. */
emilmont 1:fdd22bb7aa52 1887 uint16_t numCols; /**< number of columns in the data table. */
emilmont 1:fdd22bb7aa52 1888 q7_t *pData; /**< points to the data table. */
emilmont 1:fdd22bb7aa52 1889 } arm_bilinear_interp_instance_q7;
emilmont 1:fdd22bb7aa52 1890
emilmont 1:fdd22bb7aa52 1891
emilmont 1:fdd22bb7aa52 1892 /**
emilmont 1:fdd22bb7aa52 1893 * @brief Q7 vector multiplication.
emilmont 1:fdd22bb7aa52 1894 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 1895 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 1896 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 1897 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 1898 * @return none.
emilmont 1:fdd22bb7aa52 1899 */
emilmont 1:fdd22bb7aa52 1900
emilmont 1:fdd22bb7aa52 1901 void arm_mult_q7(
emilmont 1:fdd22bb7aa52 1902 q7_t * pSrcA,
emilmont 1:fdd22bb7aa52 1903 q7_t * pSrcB,
emilmont 1:fdd22bb7aa52 1904 q7_t * pDst,
emilmont 1:fdd22bb7aa52 1905 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1906
emilmont 1:fdd22bb7aa52 1907 /**
emilmont 1:fdd22bb7aa52 1908 * @brief Q15 vector multiplication.
emilmont 1:fdd22bb7aa52 1909 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 1910 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 1911 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 1912 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 1913 * @return none.
emilmont 1:fdd22bb7aa52 1914 */
emilmont 1:fdd22bb7aa52 1915
emilmont 1:fdd22bb7aa52 1916 void arm_mult_q15(
emilmont 1:fdd22bb7aa52 1917 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 1918 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 1919 q15_t * pDst,
emilmont 1:fdd22bb7aa52 1920 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1921
emilmont 1:fdd22bb7aa52 1922 /**
emilmont 1:fdd22bb7aa52 1923 * @brief Q31 vector multiplication.
emilmont 1:fdd22bb7aa52 1924 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 1925 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 1926 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 1927 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 1928 * @return none.
emilmont 1:fdd22bb7aa52 1929 */
emilmont 1:fdd22bb7aa52 1930
emilmont 1:fdd22bb7aa52 1931 void arm_mult_q31(
emilmont 1:fdd22bb7aa52 1932 q31_t * pSrcA,
emilmont 1:fdd22bb7aa52 1933 q31_t * pSrcB,
emilmont 1:fdd22bb7aa52 1934 q31_t * pDst,
emilmont 1:fdd22bb7aa52 1935 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1936
emilmont 1:fdd22bb7aa52 1937 /**
emilmont 1:fdd22bb7aa52 1938 * @brief Floating-point vector multiplication.
emilmont 1:fdd22bb7aa52 1939 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 1940 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 1941 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 1942 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 1943 * @return none.
emilmont 1:fdd22bb7aa52 1944 */
emilmont 1:fdd22bb7aa52 1945
emilmont 1:fdd22bb7aa52 1946 void arm_mult_f32(
emilmont 1:fdd22bb7aa52 1947 float32_t * pSrcA,
emilmont 1:fdd22bb7aa52 1948 float32_t * pSrcB,
emilmont 1:fdd22bb7aa52 1949 float32_t * pDst,
emilmont 1:fdd22bb7aa52 1950 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 1951
emilmont 1:fdd22bb7aa52 1952
mbed_official 3:7a284390b0ce 1953
mbed_official 3:7a284390b0ce 1954
emilmont 1:fdd22bb7aa52 1955
emilmont 1:fdd22bb7aa52 1956
emilmont 1:fdd22bb7aa52 1957 /**
emilmont 1:fdd22bb7aa52 1958 * @brief Instance structure for the Q15 CFFT/CIFFT function.
emilmont 1:fdd22bb7aa52 1959 */
emilmont 1:fdd22bb7aa52 1960
emilmont 1:fdd22bb7aa52 1961 typedef struct
emilmont 1:fdd22bb7aa52 1962 {
emilmont 1:fdd22bb7aa52 1963 uint16_t fftLen; /**< length of the FFT. */
emilmont 1:fdd22bb7aa52 1964 uint8_t ifftFlag; /**< flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. */
emilmont 1:fdd22bb7aa52 1965 uint8_t bitReverseFlag; /**< flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. */
emilmont 1:fdd22bb7aa52 1966 q15_t *pTwiddle; /**< points to the Sin twiddle factor table. */
emilmont 1:fdd22bb7aa52 1967 uint16_t *pBitRevTable; /**< points to the bit reversal table. */
emilmont 1:fdd22bb7aa52 1968 uint16_t twidCoefModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */
emilmont 1:fdd22bb7aa52 1969 uint16_t bitRevFactor; /**< bit reversal modifier that supports different size FFTs with the same bit reversal table. */
emilmont 1:fdd22bb7aa52 1970 } arm_cfft_radix2_instance_q15;
emilmont 1:fdd22bb7aa52 1971
mbed_official 3:7a284390b0ce 1972 arm_status arm_cfft_radix2_init_q15(
mbed_official 3:7a284390b0ce 1973 arm_cfft_radix2_instance_q15 * S,
mbed_official 3:7a284390b0ce 1974 uint16_t fftLen,
mbed_official 3:7a284390b0ce 1975 uint8_t ifftFlag,
mbed_official 3:7a284390b0ce 1976 uint8_t bitReverseFlag);
mbed_official 3:7a284390b0ce 1977
mbed_official 3:7a284390b0ce 1978 void arm_cfft_radix2_q15(
mbed_official 3:7a284390b0ce 1979 const arm_cfft_radix2_instance_q15 * S,
mbed_official 3:7a284390b0ce 1980 q15_t * pSrc);
mbed_official 3:7a284390b0ce 1981
mbed_official 3:7a284390b0ce 1982
mbed_official 3:7a284390b0ce 1983
mbed_official 3:7a284390b0ce 1984 /**
mbed_official 3:7a284390b0ce 1985 * @brief Instance structure for the Q15 CFFT/CIFFT function.
mbed_official 3:7a284390b0ce 1986 */
mbed_official 3:7a284390b0ce 1987
mbed_official 3:7a284390b0ce 1988 typedef struct
mbed_official 3:7a284390b0ce 1989 {
mbed_official 3:7a284390b0ce 1990 uint16_t fftLen; /**< length of the FFT. */
mbed_official 3:7a284390b0ce 1991 uint8_t ifftFlag; /**< flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. */
mbed_official 3:7a284390b0ce 1992 uint8_t bitReverseFlag; /**< flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. */
mbed_official 3:7a284390b0ce 1993 q15_t *pTwiddle; /**< points to the twiddle factor table. */
mbed_official 3:7a284390b0ce 1994 uint16_t *pBitRevTable; /**< points to the bit reversal table. */
mbed_official 3:7a284390b0ce 1995 uint16_t twidCoefModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */
mbed_official 3:7a284390b0ce 1996 uint16_t bitRevFactor; /**< bit reversal modifier that supports different size FFTs with the same bit reversal table. */
mbed_official 3:7a284390b0ce 1997 } arm_cfft_radix4_instance_q15;
mbed_official 3:7a284390b0ce 1998
mbed_official 3:7a284390b0ce 1999 arm_status arm_cfft_radix4_init_q15(
mbed_official 3:7a284390b0ce 2000 arm_cfft_radix4_instance_q15 * S,
mbed_official 3:7a284390b0ce 2001 uint16_t fftLen,
mbed_official 3:7a284390b0ce 2002 uint8_t ifftFlag,
mbed_official 3:7a284390b0ce 2003 uint8_t bitReverseFlag);
mbed_official 3:7a284390b0ce 2004
mbed_official 3:7a284390b0ce 2005 void arm_cfft_radix4_q15(
mbed_official 3:7a284390b0ce 2006 const arm_cfft_radix4_instance_q15 * S,
mbed_official 3:7a284390b0ce 2007 q15_t * pSrc);
mbed_official 3:7a284390b0ce 2008
emilmont 1:fdd22bb7aa52 2009 /**
emilmont 1:fdd22bb7aa52 2010 * @brief Instance structure for the Radix-2 Q31 CFFT/CIFFT function.
emilmont 1:fdd22bb7aa52 2011 */
emilmont 1:fdd22bb7aa52 2012
emilmont 1:fdd22bb7aa52 2013 typedef struct
emilmont 1:fdd22bb7aa52 2014 {
emilmont 1:fdd22bb7aa52 2015 uint16_t fftLen; /**< length of the FFT. */
emilmont 1:fdd22bb7aa52 2016 uint8_t ifftFlag; /**< flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. */
emilmont 1:fdd22bb7aa52 2017 uint8_t bitReverseFlag; /**< flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. */
emilmont 1:fdd22bb7aa52 2018 q31_t *pTwiddle; /**< points to the Twiddle factor table. */
emilmont 1:fdd22bb7aa52 2019 uint16_t *pBitRevTable; /**< points to the bit reversal table. */
emilmont 1:fdd22bb7aa52 2020 uint16_t twidCoefModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */
emilmont 1:fdd22bb7aa52 2021 uint16_t bitRevFactor; /**< bit reversal modifier that supports different size FFTs with the same bit reversal table. */
emilmont 1:fdd22bb7aa52 2022 } arm_cfft_radix2_instance_q31;
emilmont 1:fdd22bb7aa52 2023
mbed_official 3:7a284390b0ce 2024 arm_status arm_cfft_radix2_init_q31(
mbed_official 3:7a284390b0ce 2025 arm_cfft_radix2_instance_q31 * S,
mbed_official 3:7a284390b0ce 2026 uint16_t fftLen,
mbed_official 3:7a284390b0ce 2027 uint8_t ifftFlag,
mbed_official 3:7a284390b0ce 2028 uint8_t bitReverseFlag);
mbed_official 3:7a284390b0ce 2029
mbed_official 3:7a284390b0ce 2030 void arm_cfft_radix2_q31(
mbed_official 3:7a284390b0ce 2031 const arm_cfft_radix2_instance_q31 * S,
mbed_official 3:7a284390b0ce 2032 q31_t * pSrc);
mbed_official 3:7a284390b0ce 2033
mbed_official 3:7a284390b0ce 2034 /**
mbed_official 3:7a284390b0ce 2035 * @brief Instance structure for the Q31 CFFT/CIFFT function.
mbed_official 3:7a284390b0ce 2036 */
mbed_official 3:7a284390b0ce 2037
mbed_official 3:7a284390b0ce 2038 typedef struct
mbed_official 3:7a284390b0ce 2039 {
mbed_official 3:7a284390b0ce 2040 uint16_t fftLen; /**< length of the FFT. */
mbed_official 3:7a284390b0ce 2041 uint8_t ifftFlag; /**< flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. */
mbed_official 3:7a284390b0ce 2042 uint8_t bitReverseFlag; /**< flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. */
mbed_official 3:7a284390b0ce 2043 q31_t *pTwiddle; /**< points to the twiddle factor table. */
mbed_official 3:7a284390b0ce 2044 uint16_t *pBitRevTable; /**< points to the bit reversal table. */
mbed_official 3:7a284390b0ce 2045 uint16_t twidCoefModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */
mbed_official 3:7a284390b0ce 2046 uint16_t bitRevFactor; /**< bit reversal modifier that supports different size FFTs with the same bit reversal table. */
mbed_official 3:7a284390b0ce 2047 } arm_cfft_radix4_instance_q31;
mbed_official 3:7a284390b0ce 2048
mbed_official 3:7a284390b0ce 2049
mbed_official 3:7a284390b0ce 2050 void arm_cfft_radix4_q31(
mbed_official 3:7a284390b0ce 2051 const arm_cfft_radix4_instance_q31 * S,
mbed_official 3:7a284390b0ce 2052 q31_t * pSrc);
mbed_official 3:7a284390b0ce 2053
mbed_official 3:7a284390b0ce 2054 arm_status arm_cfft_radix4_init_q31(
mbed_official 3:7a284390b0ce 2055 arm_cfft_radix4_instance_q31 * S,
mbed_official 3:7a284390b0ce 2056 uint16_t fftLen,
mbed_official 3:7a284390b0ce 2057 uint8_t ifftFlag,
mbed_official 3:7a284390b0ce 2058 uint8_t bitReverseFlag);
mbed_official 3:7a284390b0ce 2059
emilmont 1:fdd22bb7aa52 2060 /**
emilmont 1:fdd22bb7aa52 2061 * @brief Instance structure for the floating-point CFFT/CIFFT function.
emilmont 1:fdd22bb7aa52 2062 */
emilmont 1:fdd22bb7aa52 2063
emilmont 1:fdd22bb7aa52 2064 typedef struct
emilmont 1:fdd22bb7aa52 2065 {
emilmont 1:fdd22bb7aa52 2066 uint16_t fftLen; /**< length of the FFT. */
emilmont 1:fdd22bb7aa52 2067 uint8_t ifftFlag; /**< flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. */
emilmont 1:fdd22bb7aa52 2068 uint8_t bitReverseFlag; /**< flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. */
emilmont 1:fdd22bb7aa52 2069 float32_t *pTwiddle; /**< points to the Twiddle factor table. */
emilmont 1:fdd22bb7aa52 2070 uint16_t *pBitRevTable; /**< points to the bit reversal table. */
emilmont 1:fdd22bb7aa52 2071 uint16_t twidCoefModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */
emilmont 1:fdd22bb7aa52 2072 uint16_t bitRevFactor; /**< bit reversal modifier that supports different size FFTs with the same bit reversal table. */
emilmont 1:fdd22bb7aa52 2073 float32_t onebyfftLen; /**< value of 1/fftLen. */
emilmont 1:fdd22bb7aa52 2074 } arm_cfft_radix2_instance_f32;
emilmont 1:fdd22bb7aa52 2075
mbed_official 3:7a284390b0ce 2076 /* Deprecated */
emilmont 1:fdd22bb7aa52 2077 arm_status arm_cfft_radix2_init_f32(
emilmont 1:fdd22bb7aa52 2078 arm_cfft_radix2_instance_f32 * S,
emilmont 1:fdd22bb7aa52 2079 uint16_t fftLen,
emilmont 1:fdd22bb7aa52 2080 uint8_t ifftFlag,
emilmont 1:fdd22bb7aa52 2081 uint8_t bitReverseFlag);
emilmont 1:fdd22bb7aa52 2082
mbed_official 3:7a284390b0ce 2083 /* Deprecated */
mbed_official 3:7a284390b0ce 2084 void arm_cfft_radix2_f32(
mbed_official 3:7a284390b0ce 2085 const arm_cfft_radix2_instance_f32 * S,
emilmont 1:fdd22bb7aa52 2086 float32_t * pSrc);
emilmont 1:fdd22bb7aa52 2087
emilmont 1:fdd22bb7aa52 2088 /**
mbed_official 3:7a284390b0ce 2089 * @brief Instance structure for the floating-point CFFT/CIFFT function.
mbed_official 3:7a284390b0ce 2090 */
mbed_official 3:7a284390b0ce 2091
mbed_official 3:7a284390b0ce 2092 typedef struct
mbed_official 3:7a284390b0ce 2093 {
mbed_official 3:7a284390b0ce 2094 uint16_t fftLen; /**< length of the FFT. */
mbed_official 3:7a284390b0ce 2095 uint8_t ifftFlag; /**< flag that selects forward (ifftFlag=0) or inverse (ifftFlag=1) transform. */
mbed_official 3:7a284390b0ce 2096 uint8_t bitReverseFlag; /**< flag that enables (bitReverseFlag=1) or disables (bitReverseFlag=0) bit reversal of output. */
mbed_official 3:7a284390b0ce 2097 float32_t *pTwiddle; /**< points to the Twiddle factor table. */
mbed_official 3:7a284390b0ce 2098 uint16_t *pBitRevTable; /**< points to the bit reversal table. */
mbed_official 3:7a284390b0ce 2099 uint16_t twidCoefModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */
mbed_official 3:7a284390b0ce 2100 uint16_t bitRevFactor; /**< bit reversal modifier that supports different size FFTs with the same bit reversal table. */
mbed_official 3:7a284390b0ce 2101 float32_t onebyfftLen; /**< value of 1/fftLen. */
mbed_official 3:7a284390b0ce 2102 } arm_cfft_radix4_instance_f32;
mbed_official 3:7a284390b0ce 2103
mbed_official 3:7a284390b0ce 2104 /* Deprecated */
emilmont 1:fdd22bb7aa52 2105 arm_status arm_cfft_radix4_init_f32(
emilmont 1:fdd22bb7aa52 2106 arm_cfft_radix4_instance_f32 * S,
emilmont 1:fdd22bb7aa52 2107 uint16_t fftLen,
emilmont 1:fdd22bb7aa52 2108 uint8_t ifftFlag,
emilmont 1:fdd22bb7aa52 2109 uint8_t bitReverseFlag);
emilmont 1:fdd22bb7aa52 2110
mbed_official 3:7a284390b0ce 2111 /* Deprecated */
mbed_official 3:7a284390b0ce 2112 void arm_cfft_radix4_f32(
mbed_official 3:7a284390b0ce 2113 const arm_cfft_radix4_instance_f32 * S,
mbed_official 3:7a284390b0ce 2114 float32_t * pSrc);
mbed_official 3:7a284390b0ce 2115
mbed_official 3:7a284390b0ce 2116 /**
mbed_official 3:7a284390b0ce 2117 * @brief Instance structure for the floating-point CFFT/CIFFT function.
mbed_official 3:7a284390b0ce 2118 */
mbed_official 3:7a284390b0ce 2119
mbed_official 3:7a284390b0ce 2120 typedef struct
mbed_official 3:7a284390b0ce 2121 {
mbed_official 3:7a284390b0ce 2122 uint16_t fftLen; /**< length of the FFT. */
mbed_official 3:7a284390b0ce 2123 const float32_t *pTwiddle; /**< points to the Twiddle factor table. */
mbed_official 3:7a284390b0ce 2124 const uint16_t *pBitRevTable; /**< points to the bit reversal table. */
mbed_official 3:7a284390b0ce 2125 uint16_t bitRevLength; /**< bit reversal table length. */
mbed_official 3:7a284390b0ce 2126 } arm_cfft_instance_f32;
mbed_official 3:7a284390b0ce 2127
mbed_official 3:7a284390b0ce 2128 void arm_cfft_f32(
mbed_official 3:7a284390b0ce 2129 const arm_cfft_instance_f32 * S,
mbed_official 3:7a284390b0ce 2130 float32_t * p1,
mbed_official 3:7a284390b0ce 2131 uint8_t ifftFlag,
mbed_official 3:7a284390b0ce 2132 uint8_t bitReverseFlag);
emilmont 1:fdd22bb7aa52 2133
emilmont 1:fdd22bb7aa52 2134 /**
emilmont 1:fdd22bb7aa52 2135 * @brief Instance structure for the Q15 RFFT/RIFFT function.
emilmont 1:fdd22bb7aa52 2136 */
emilmont 1:fdd22bb7aa52 2137
emilmont 1:fdd22bb7aa52 2138 typedef struct
emilmont 1:fdd22bb7aa52 2139 {
emilmont 1:fdd22bb7aa52 2140 uint32_t fftLenReal; /**< length of the real FFT. */
emilmont 1:fdd22bb7aa52 2141 uint32_t fftLenBy2; /**< length of the complex FFT. */
emilmont 1:fdd22bb7aa52 2142 uint8_t ifftFlagR; /**< flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform. */
emilmont 1:fdd22bb7aa52 2143 uint8_t bitReverseFlagR; /**< flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output. */
emilmont 1:fdd22bb7aa52 2144 uint32_t twidCoefRModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */
emilmont 1:fdd22bb7aa52 2145 q15_t *pTwiddleAReal; /**< points to the real twiddle factor table. */
emilmont 1:fdd22bb7aa52 2146 q15_t *pTwiddleBReal; /**< points to the imag twiddle factor table. */
emilmont 1:fdd22bb7aa52 2147 arm_cfft_radix4_instance_q15 *pCfft; /**< points to the complex FFT instance. */
emilmont 1:fdd22bb7aa52 2148 } arm_rfft_instance_q15;
emilmont 1:fdd22bb7aa52 2149
mbed_official 3:7a284390b0ce 2150 arm_status arm_rfft_init_q15(
mbed_official 3:7a284390b0ce 2151 arm_rfft_instance_q15 * S,
mbed_official 3:7a284390b0ce 2152 arm_cfft_radix4_instance_q15 * S_CFFT,
mbed_official 3:7a284390b0ce 2153 uint32_t fftLenReal,
mbed_official 3:7a284390b0ce 2154 uint32_t ifftFlagR,
mbed_official 3:7a284390b0ce 2155 uint32_t bitReverseFlag);
mbed_official 3:7a284390b0ce 2156
mbed_official 3:7a284390b0ce 2157 void arm_rfft_q15(
mbed_official 3:7a284390b0ce 2158 const arm_rfft_instance_q15 * S,
mbed_official 3:7a284390b0ce 2159 q15_t * pSrc,
mbed_official 3:7a284390b0ce 2160 q15_t * pDst);
mbed_official 3:7a284390b0ce 2161
emilmont 1:fdd22bb7aa52 2162 /**
emilmont 1:fdd22bb7aa52 2163 * @brief Instance structure for the Q31 RFFT/RIFFT function.
emilmont 1:fdd22bb7aa52 2164 */
emilmont 1:fdd22bb7aa52 2165
emilmont 1:fdd22bb7aa52 2166 typedef struct
emilmont 1:fdd22bb7aa52 2167 {
emilmont 1:fdd22bb7aa52 2168 uint32_t fftLenReal; /**< length of the real FFT. */
emilmont 1:fdd22bb7aa52 2169 uint32_t fftLenBy2; /**< length of the complex FFT. */
emilmont 1:fdd22bb7aa52 2170 uint8_t ifftFlagR; /**< flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform. */
emilmont 1:fdd22bb7aa52 2171 uint8_t bitReverseFlagR; /**< flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output. */
emilmont 1:fdd22bb7aa52 2172 uint32_t twidCoefRModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */
emilmont 1:fdd22bb7aa52 2173 q31_t *pTwiddleAReal; /**< points to the real twiddle factor table. */
emilmont 1:fdd22bb7aa52 2174 q31_t *pTwiddleBReal; /**< points to the imag twiddle factor table. */
emilmont 1:fdd22bb7aa52 2175 arm_cfft_radix4_instance_q31 *pCfft; /**< points to the complex FFT instance. */
emilmont 1:fdd22bb7aa52 2176 } arm_rfft_instance_q31;
emilmont 1:fdd22bb7aa52 2177
mbed_official 3:7a284390b0ce 2178 arm_status arm_rfft_init_q31(
mbed_official 3:7a284390b0ce 2179 arm_rfft_instance_q31 * S,
mbed_official 3:7a284390b0ce 2180 arm_cfft_radix4_instance_q31 * S_CFFT,
mbed_official 3:7a284390b0ce 2181 uint32_t fftLenReal,
mbed_official 3:7a284390b0ce 2182 uint32_t ifftFlagR,
mbed_official 3:7a284390b0ce 2183 uint32_t bitReverseFlag);
mbed_official 3:7a284390b0ce 2184
mbed_official 3:7a284390b0ce 2185 void arm_rfft_q31(
mbed_official 3:7a284390b0ce 2186 const arm_rfft_instance_q31 * S,
mbed_official 3:7a284390b0ce 2187 q31_t * pSrc,
mbed_official 3:7a284390b0ce 2188 q31_t * pDst);
mbed_official 3:7a284390b0ce 2189
emilmont 1:fdd22bb7aa52 2190 /**
emilmont 1:fdd22bb7aa52 2191 * @brief Instance structure for the floating-point RFFT/RIFFT function.
emilmont 1:fdd22bb7aa52 2192 */
emilmont 1:fdd22bb7aa52 2193
emilmont 1:fdd22bb7aa52 2194 typedef struct
emilmont 1:fdd22bb7aa52 2195 {
emilmont 1:fdd22bb7aa52 2196 uint32_t fftLenReal; /**< length of the real FFT. */
emilmont 1:fdd22bb7aa52 2197 uint16_t fftLenBy2; /**< length of the complex FFT. */
emilmont 1:fdd22bb7aa52 2198 uint8_t ifftFlagR; /**< flag that selects forward (ifftFlagR=0) or inverse (ifftFlagR=1) transform. */
emilmont 1:fdd22bb7aa52 2199 uint8_t bitReverseFlagR; /**< flag that enables (bitReverseFlagR=1) or disables (bitReverseFlagR=0) bit reversal of output. */
emilmont 1:fdd22bb7aa52 2200 uint32_t twidCoefRModifier; /**< twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. */
emilmont 1:fdd22bb7aa52 2201 float32_t *pTwiddleAReal; /**< points to the real twiddle factor table. */
emilmont 1:fdd22bb7aa52 2202 float32_t *pTwiddleBReal; /**< points to the imag twiddle factor table. */
emilmont 1:fdd22bb7aa52 2203 arm_cfft_radix4_instance_f32 *pCfft; /**< points to the complex FFT instance. */
emilmont 1:fdd22bb7aa52 2204 } arm_rfft_instance_f32;
emilmont 1:fdd22bb7aa52 2205
emilmont 1:fdd22bb7aa52 2206 arm_status arm_rfft_init_f32(
emilmont 1:fdd22bb7aa52 2207 arm_rfft_instance_f32 * S,
emilmont 1:fdd22bb7aa52 2208 arm_cfft_radix4_instance_f32 * S_CFFT,
emilmont 1:fdd22bb7aa52 2209 uint32_t fftLenReal,
emilmont 1:fdd22bb7aa52 2210 uint32_t ifftFlagR,
emilmont 1:fdd22bb7aa52 2211 uint32_t bitReverseFlag);
emilmont 1:fdd22bb7aa52 2212
emilmont 1:fdd22bb7aa52 2213 void arm_rfft_f32(
emilmont 1:fdd22bb7aa52 2214 const arm_rfft_instance_f32 * S,
emilmont 1:fdd22bb7aa52 2215 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 2216 float32_t * pDst);
emilmont 1:fdd22bb7aa52 2217
emilmont 1:fdd22bb7aa52 2218 /**
mbed_official 3:7a284390b0ce 2219 * @brief Instance structure for the floating-point RFFT/RIFFT function.
mbed_official 3:7a284390b0ce 2220 */
mbed_official 3:7a284390b0ce 2221
mbed_official 3:7a284390b0ce 2222 typedef struct
mbed_official 3:7a284390b0ce 2223 {
mbed_official 3:7a284390b0ce 2224 arm_cfft_instance_f32 Sint; /**< Internal CFFT structure. */
mbed_official 3:7a284390b0ce 2225 uint16_t fftLenRFFT; /**< length of the real sequence */
mbed_official 3:7a284390b0ce 2226 float32_t * pTwiddleRFFT; /**< Twiddle factors real stage */
mbed_official 3:7a284390b0ce 2227 } arm_rfft_fast_instance_f32 ;
mbed_official 3:7a284390b0ce 2228
mbed_official 3:7a284390b0ce 2229 arm_status arm_rfft_fast_init_f32 (
mbed_official 3:7a284390b0ce 2230 arm_rfft_fast_instance_f32 * S,
mbed_official 3:7a284390b0ce 2231 uint16_t fftLen);
mbed_official 3:7a284390b0ce 2232
mbed_official 3:7a284390b0ce 2233 void arm_rfft_fast_f32(
mbed_official 3:7a284390b0ce 2234 arm_rfft_fast_instance_f32 * S,
mbed_official 3:7a284390b0ce 2235 float32_t * p, float32_t * pOut,
mbed_official 3:7a284390b0ce 2236 uint8_t ifftFlag);
mbed_official 3:7a284390b0ce 2237
mbed_official 3:7a284390b0ce 2238 /**
emilmont 1:fdd22bb7aa52 2239 * @brief Instance structure for the floating-point DCT4/IDCT4 function.
emilmont 1:fdd22bb7aa52 2240 */
emilmont 1:fdd22bb7aa52 2241
emilmont 1:fdd22bb7aa52 2242 typedef struct
emilmont 1:fdd22bb7aa52 2243 {
emilmont 1:fdd22bb7aa52 2244 uint16_t N; /**< length of the DCT4. */
emilmont 1:fdd22bb7aa52 2245 uint16_t Nby2; /**< half of the length of the DCT4. */
emilmont 1:fdd22bb7aa52 2246 float32_t normalize; /**< normalizing factor. */
emilmont 1:fdd22bb7aa52 2247 float32_t *pTwiddle; /**< points to the twiddle factor table. */
emilmont 1:fdd22bb7aa52 2248 float32_t *pCosFactor; /**< points to the cosFactor table. */
emilmont 1:fdd22bb7aa52 2249 arm_rfft_instance_f32 *pRfft; /**< points to the real FFT instance. */
emilmont 1:fdd22bb7aa52 2250 arm_cfft_radix4_instance_f32 *pCfft; /**< points to the complex FFT instance. */
emilmont 1:fdd22bb7aa52 2251 } arm_dct4_instance_f32;
emilmont 1:fdd22bb7aa52 2252
emilmont 1:fdd22bb7aa52 2253 /**
emilmont 1:fdd22bb7aa52 2254 * @brief Initialization function for the floating-point DCT4/IDCT4.
emilmont 1:fdd22bb7aa52 2255 * @param[in,out] *S points to an instance of floating-point DCT4/IDCT4 structure.
emilmont 1:fdd22bb7aa52 2256 * @param[in] *S_RFFT points to an instance of floating-point RFFT/RIFFT structure.
emilmont 1:fdd22bb7aa52 2257 * @param[in] *S_CFFT points to an instance of floating-point CFFT/CIFFT structure.
emilmont 1:fdd22bb7aa52 2258 * @param[in] N length of the DCT4.
emilmont 1:fdd22bb7aa52 2259 * @param[in] Nby2 half of the length of the DCT4.
emilmont 1:fdd22bb7aa52 2260 * @param[in] normalize normalizing factor.
emilmont 2:da51fb522205 2261 * @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.
emilmont 1:fdd22bb7aa52 2262 */
emilmont 1:fdd22bb7aa52 2263
emilmont 1:fdd22bb7aa52 2264 arm_status arm_dct4_init_f32(
emilmont 1:fdd22bb7aa52 2265 arm_dct4_instance_f32 * S,
emilmont 1:fdd22bb7aa52 2266 arm_rfft_instance_f32 * S_RFFT,
emilmont 1:fdd22bb7aa52 2267 arm_cfft_radix4_instance_f32 * S_CFFT,
emilmont 1:fdd22bb7aa52 2268 uint16_t N,
emilmont 1:fdd22bb7aa52 2269 uint16_t Nby2,
emilmont 1:fdd22bb7aa52 2270 float32_t normalize);
emilmont 1:fdd22bb7aa52 2271
emilmont 1:fdd22bb7aa52 2272 /**
emilmont 1:fdd22bb7aa52 2273 * @brief Processing function for the floating-point DCT4/IDCT4.
emilmont 1:fdd22bb7aa52 2274 * @param[in] *S points to an instance of the floating-point DCT4/IDCT4 structure.
emilmont 1:fdd22bb7aa52 2275 * @param[in] *pState points to state buffer.
emilmont 1:fdd22bb7aa52 2276 * @param[in,out] *pInlineBuffer points to the in-place input and output buffer.
emilmont 1:fdd22bb7aa52 2277 * @return none.
emilmont 1:fdd22bb7aa52 2278 */
emilmont 1:fdd22bb7aa52 2279
emilmont 1:fdd22bb7aa52 2280 void arm_dct4_f32(
emilmont 1:fdd22bb7aa52 2281 const arm_dct4_instance_f32 * S,
emilmont 1:fdd22bb7aa52 2282 float32_t * pState,
emilmont 1:fdd22bb7aa52 2283 float32_t * pInlineBuffer);
emilmont 1:fdd22bb7aa52 2284
emilmont 1:fdd22bb7aa52 2285 /**
emilmont 1:fdd22bb7aa52 2286 * @brief Instance structure for the Q31 DCT4/IDCT4 function.
emilmont 1:fdd22bb7aa52 2287 */
emilmont 1:fdd22bb7aa52 2288
emilmont 1:fdd22bb7aa52 2289 typedef struct
emilmont 1:fdd22bb7aa52 2290 {
emilmont 1:fdd22bb7aa52 2291 uint16_t N; /**< length of the DCT4. */
emilmont 1:fdd22bb7aa52 2292 uint16_t Nby2; /**< half of the length of the DCT4. */
emilmont 1:fdd22bb7aa52 2293 q31_t normalize; /**< normalizing factor. */
emilmont 1:fdd22bb7aa52 2294 q31_t *pTwiddle; /**< points to the twiddle factor table. */
emilmont 1:fdd22bb7aa52 2295 q31_t *pCosFactor; /**< points to the cosFactor table. */
emilmont 1:fdd22bb7aa52 2296 arm_rfft_instance_q31 *pRfft; /**< points to the real FFT instance. */
emilmont 1:fdd22bb7aa52 2297 arm_cfft_radix4_instance_q31 *pCfft; /**< points to the complex FFT instance. */
emilmont 1:fdd22bb7aa52 2298 } arm_dct4_instance_q31;
emilmont 1:fdd22bb7aa52 2299
emilmont 1:fdd22bb7aa52 2300 /**
emilmont 1:fdd22bb7aa52 2301 * @brief Initialization function for the Q31 DCT4/IDCT4.
emilmont 1:fdd22bb7aa52 2302 * @param[in,out] *S points to an instance of Q31 DCT4/IDCT4 structure.
emilmont 1:fdd22bb7aa52 2303 * @param[in] *S_RFFT points to an instance of Q31 RFFT/RIFFT structure
emilmont 1:fdd22bb7aa52 2304 * @param[in] *S_CFFT points to an instance of Q31 CFFT/CIFFT structure
emilmont 1:fdd22bb7aa52 2305 * @param[in] N length of the DCT4.
emilmont 1:fdd22bb7aa52 2306 * @param[in] Nby2 half of the length of the DCT4.
emilmont 1:fdd22bb7aa52 2307 * @param[in] normalize normalizing factor.
emilmont 2:da51fb522205 2308 * @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.
emilmont 1:fdd22bb7aa52 2309 */
emilmont 1:fdd22bb7aa52 2310
emilmont 1:fdd22bb7aa52 2311 arm_status arm_dct4_init_q31(
emilmont 1:fdd22bb7aa52 2312 arm_dct4_instance_q31 * S,
emilmont 1:fdd22bb7aa52 2313 arm_rfft_instance_q31 * S_RFFT,
emilmont 1:fdd22bb7aa52 2314 arm_cfft_radix4_instance_q31 * S_CFFT,
emilmont 1:fdd22bb7aa52 2315 uint16_t N,
emilmont 1:fdd22bb7aa52 2316 uint16_t Nby2,
emilmont 1:fdd22bb7aa52 2317 q31_t normalize);
emilmont 1:fdd22bb7aa52 2318
emilmont 1:fdd22bb7aa52 2319 /**
emilmont 1:fdd22bb7aa52 2320 * @brief Processing function for the Q31 DCT4/IDCT4.
emilmont 1:fdd22bb7aa52 2321 * @param[in] *S points to an instance of the Q31 DCT4 structure.
emilmont 1:fdd22bb7aa52 2322 * @param[in] *pState points to state buffer.
emilmont 1:fdd22bb7aa52 2323 * @param[in,out] *pInlineBuffer points to the in-place input and output buffer.
emilmont 1:fdd22bb7aa52 2324 * @return none.
emilmont 1:fdd22bb7aa52 2325 */
emilmont 1:fdd22bb7aa52 2326
emilmont 1:fdd22bb7aa52 2327 void arm_dct4_q31(
emilmont 1:fdd22bb7aa52 2328 const arm_dct4_instance_q31 * S,
emilmont 1:fdd22bb7aa52 2329 q31_t * pState,
emilmont 1:fdd22bb7aa52 2330 q31_t * pInlineBuffer);
emilmont 1:fdd22bb7aa52 2331
emilmont 1:fdd22bb7aa52 2332 /**
emilmont 1:fdd22bb7aa52 2333 * @brief Instance structure for the Q15 DCT4/IDCT4 function.
emilmont 1:fdd22bb7aa52 2334 */
emilmont 1:fdd22bb7aa52 2335
emilmont 1:fdd22bb7aa52 2336 typedef struct
emilmont 1:fdd22bb7aa52 2337 {
emilmont 1:fdd22bb7aa52 2338 uint16_t N; /**< length of the DCT4. */
emilmont 1:fdd22bb7aa52 2339 uint16_t Nby2; /**< half of the length of the DCT4. */
emilmont 1:fdd22bb7aa52 2340 q15_t normalize; /**< normalizing factor. */
emilmont 1:fdd22bb7aa52 2341 q15_t *pTwiddle; /**< points to the twiddle factor table. */
emilmont 1:fdd22bb7aa52 2342 q15_t *pCosFactor; /**< points to the cosFactor table. */
emilmont 1:fdd22bb7aa52 2343 arm_rfft_instance_q15 *pRfft; /**< points to the real FFT instance. */
emilmont 1:fdd22bb7aa52 2344 arm_cfft_radix4_instance_q15 *pCfft; /**< points to the complex FFT instance. */
emilmont 1:fdd22bb7aa52 2345 } arm_dct4_instance_q15;
emilmont 1:fdd22bb7aa52 2346
emilmont 1:fdd22bb7aa52 2347 /**
emilmont 1:fdd22bb7aa52 2348 * @brief Initialization function for the Q15 DCT4/IDCT4.
emilmont 1:fdd22bb7aa52 2349 * @param[in,out] *S points to an instance of Q15 DCT4/IDCT4 structure.
emilmont 1:fdd22bb7aa52 2350 * @param[in] *S_RFFT points to an instance of Q15 RFFT/RIFFT structure.
emilmont 1:fdd22bb7aa52 2351 * @param[in] *S_CFFT points to an instance of Q15 CFFT/CIFFT structure.
emilmont 1:fdd22bb7aa52 2352 * @param[in] N length of the DCT4.
emilmont 1:fdd22bb7aa52 2353 * @param[in] Nby2 half of the length of the DCT4.
emilmont 1:fdd22bb7aa52 2354 * @param[in] normalize normalizing factor.
emilmont 2:da51fb522205 2355 * @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.
emilmont 1:fdd22bb7aa52 2356 */
emilmont 1:fdd22bb7aa52 2357
emilmont 1:fdd22bb7aa52 2358 arm_status arm_dct4_init_q15(
emilmont 1:fdd22bb7aa52 2359 arm_dct4_instance_q15 * S,
emilmont 1:fdd22bb7aa52 2360 arm_rfft_instance_q15 * S_RFFT,
emilmont 1:fdd22bb7aa52 2361 arm_cfft_radix4_instance_q15 * S_CFFT,
emilmont 1:fdd22bb7aa52 2362 uint16_t N,
emilmont 1:fdd22bb7aa52 2363 uint16_t Nby2,
emilmont 1:fdd22bb7aa52 2364 q15_t normalize);
emilmont 1:fdd22bb7aa52 2365
emilmont 1:fdd22bb7aa52 2366 /**
emilmont 1:fdd22bb7aa52 2367 * @brief Processing function for the Q15 DCT4/IDCT4.
emilmont 1:fdd22bb7aa52 2368 * @param[in] *S points to an instance of the Q15 DCT4 structure.
emilmont 1:fdd22bb7aa52 2369 * @param[in] *pState points to state buffer.
emilmont 1:fdd22bb7aa52 2370 * @param[in,out] *pInlineBuffer points to the in-place input and output buffer.
emilmont 1:fdd22bb7aa52 2371 * @return none.
emilmont 1:fdd22bb7aa52 2372 */
emilmont 1:fdd22bb7aa52 2373
emilmont 1:fdd22bb7aa52 2374 void arm_dct4_q15(
emilmont 1:fdd22bb7aa52 2375 const arm_dct4_instance_q15 * S,
emilmont 1:fdd22bb7aa52 2376 q15_t * pState,
emilmont 1:fdd22bb7aa52 2377 q15_t * pInlineBuffer);
emilmont 1:fdd22bb7aa52 2378
emilmont 1:fdd22bb7aa52 2379 /**
emilmont 1:fdd22bb7aa52 2380 * @brief Floating-point vector addition.
emilmont 1:fdd22bb7aa52 2381 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 2382 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 2383 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2384 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2385 * @return none.
emilmont 1:fdd22bb7aa52 2386 */
emilmont 1:fdd22bb7aa52 2387
emilmont 1:fdd22bb7aa52 2388 void arm_add_f32(
emilmont 1:fdd22bb7aa52 2389 float32_t * pSrcA,
emilmont 1:fdd22bb7aa52 2390 float32_t * pSrcB,
emilmont 1:fdd22bb7aa52 2391 float32_t * pDst,
emilmont 1:fdd22bb7aa52 2392 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2393
emilmont 1:fdd22bb7aa52 2394 /**
emilmont 1:fdd22bb7aa52 2395 * @brief Q7 vector addition.
emilmont 1:fdd22bb7aa52 2396 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 2397 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 2398 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2399 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2400 * @return none.
emilmont 1:fdd22bb7aa52 2401 */
emilmont 1:fdd22bb7aa52 2402
emilmont 1:fdd22bb7aa52 2403 void arm_add_q7(
emilmont 1:fdd22bb7aa52 2404 q7_t * pSrcA,
emilmont 1:fdd22bb7aa52 2405 q7_t * pSrcB,
emilmont 1:fdd22bb7aa52 2406 q7_t * pDst,
emilmont 1:fdd22bb7aa52 2407 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2408
emilmont 1:fdd22bb7aa52 2409 /**
emilmont 1:fdd22bb7aa52 2410 * @brief Q15 vector addition.
emilmont 1:fdd22bb7aa52 2411 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 2412 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 2413 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2414 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2415 * @return none.
emilmont 1:fdd22bb7aa52 2416 */
emilmont 1:fdd22bb7aa52 2417
emilmont 1:fdd22bb7aa52 2418 void arm_add_q15(
emilmont 1:fdd22bb7aa52 2419 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 2420 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 2421 q15_t * pDst,
emilmont 1:fdd22bb7aa52 2422 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2423
emilmont 1:fdd22bb7aa52 2424 /**
emilmont 1:fdd22bb7aa52 2425 * @brief Q31 vector addition.
emilmont 1:fdd22bb7aa52 2426 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 2427 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 2428 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2429 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2430 * @return none.
emilmont 1:fdd22bb7aa52 2431 */
emilmont 1:fdd22bb7aa52 2432
emilmont 1:fdd22bb7aa52 2433 void arm_add_q31(
emilmont 1:fdd22bb7aa52 2434 q31_t * pSrcA,
emilmont 1:fdd22bb7aa52 2435 q31_t * pSrcB,
emilmont 1:fdd22bb7aa52 2436 q31_t * pDst,
emilmont 1:fdd22bb7aa52 2437 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2438
emilmont 1:fdd22bb7aa52 2439 /**
emilmont 1:fdd22bb7aa52 2440 * @brief Floating-point vector subtraction.
emilmont 1:fdd22bb7aa52 2441 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 2442 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 2443 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2444 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2445 * @return none.
emilmont 1:fdd22bb7aa52 2446 */
emilmont 1:fdd22bb7aa52 2447
emilmont 1:fdd22bb7aa52 2448 void arm_sub_f32(
emilmont 1:fdd22bb7aa52 2449 float32_t * pSrcA,
emilmont 1:fdd22bb7aa52 2450 float32_t * pSrcB,
emilmont 1:fdd22bb7aa52 2451 float32_t * pDst,
emilmont 1:fdd22bb7aa52 2452 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2453
emilmont 1:fdd22bb7aa52 2454 /**
emilmont 1:fdd22bb7aa52 2455 * @brief Q7 vector subtraction.
emilmont 1:fdd22bb7aa52 2456 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 2457 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 2458 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2459 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2460 * @return none.
emilmont 1:fdd22bb7aa52 2461 */
emilmont 1:fdd22bb7aa52 2462
emilmont 1:fdd22bb7aa52 2463 void arm_sub_q7(
emilmont 1:fdd22bb7aa52 2464 q7_t * pSrcA,
emilmont 1:fdd22bb7aa52 2465 q7_t * pSrcB,
emilmont 1:fdd22bb7aa52 2466 q7_t * pDst,
emilmont 1:fdd22bb7aa52 2467 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2468
emilmont 1:fdd22bb7aa52 2469 /**
emilmont 1:fdd22bb7aa52 2470 * @brief Q15 vector subtraction.
emilmont 1:fdd22bb7aa52 2471 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 2472 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 2473 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2474 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2475 * @return none.
emilmont 1:fdd22bb7aa52 2476 */
emilmont 1:fdd22bb7aa52 2477
emilmont 1:fdd22bb7aa52 2478 void arm_sub_q15(
emilmont 1:fdd22bb7aa52 2479 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 2480 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 2481 q15_t * pDst,
emilmont 1:fdd22bb7aa52 2482 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2483
emilmont 1:fdd22bb7aa52 2484 /**
emilmont 1:fdd22bb7aa52 2485 * @brief Q31 vector subtraction.
emilmont 1:fdd22bb7aa52 2486 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 2487 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 2488 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2489 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2490 * @return none.
emilmont 1:fdd22bb7aa52 2491 */
emilmont 1:fdd22bb7aa52 2492
emilmont 1:fdd22bb7aa52 2493 void arm_sub_q31(
emilmont 1:fdd22bb7aa52 2494 q31_t * pSrcA,
emilmont 1:fdd22bb7aa52 2495 q31_t * pSrcB,
emilmont 1:fdd22bb7aa52 2496 q31_t * pDst,
emilmont 1:fdd22bb7aa52 2497 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2498
emilmont 1:fdd22bb7aa52 2499 /**
emilmont 1:fdd22bb7aa52 2500 * @brief Multiplies a floating-point vector by a scalar.
emilmont 1:fdd22bb7aa52 2501 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2502 * @param[in] scale scale factor to be applied
emilmont 1:fdd22bb7aa52 2503 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2504 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2505 * @return none.
emilmont 1:fdd22bb7aa52 2506 */
emilmont 1:fdd22bb7aa52 2507
emilmont 1:fdd22bb7aa52 2508 void arm_scale_f32(
emilmont 1:fdd22bb7aa52 2509 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 2510 float32_t scale,
emilmont 1:fdd22bb7aa52 2511 float32_t * pDst,
emilmont 1:fdd22bb7aa52 2512 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2513
emilmont 1:fdd22bb7aa52 2514 /**
emilmont 1:fdd22bb7aa52 2515 * @brief Multiplies a Q7 vector by a scalar.
emilmont 1:fdd22bb7aa52 2516 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2517 * @param[in] scaleFract fractional portion of the scale value
emilmont 1:fdd22bb7aa52 2518 * @param[in] shift number of bits to shift the result by
emilmont 1:fdd22bb7aa52 2519 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2520 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2521 * @return none.
emilmont 1:fdd22bb7aa52 2522 */
emilmont 1:fdd22bb7aa52 2523
emilmont 1:fdd22bb7aa52 2524 void arm_scale_q7(
emilmont 1:fdd22bb7aa52 2525 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 2526 q7_t scaleFract,
emilmont 1:fdd22bb7aa52 2527 int8_t shift,
emilmont 1:fdd22bb7aa52 2528 q7_t * pDst,
emilmont 1:fdd22bb7aa52 2529 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2530
emilmont 1:fdd22bb7aa52 2531 /**
emilmont 1:fdd22bb7aa52 2532 * @brief Multiplies a Q15 vector by a scalar.
emilmont 1:fdd22bb7aa52 2533 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2534 * @param[in] scaleFract fractional portion of the scale value
emilmont 1:fdd22bb7aa52 2535 * @param[in] shift number of bits to shift the result by
emilmont 1:fdd22bb7aa52 2536 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2537 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2538 * @return none.
emilmont 1:fdd22bb7aa52 2539 */
emilmont 1:fdd22bb7aa52 2540
emilmont 1:fdd22bb7aa52 2541 void arm_scale_q15(
emilmont 1:fdd22bb7aa52 2542 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 2543 q15_t scaleFract,
emilmont 1:fdd22bb7aa52 2544 int8_t shift,
emilmont 1:fdd22bb7aa52 2545 q15_t * pDst,
emilmont 1:fdd22bb7aa52 2546 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2547
emilmont 1:fdd22bb7aa52 2548 /**
emilmont 1:fdd22bb7aa52 2549 * @brief Multiplies a Q31 vector by a scalar.
emilmont 1:fdd22bb7aa52 2550 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2551 * @param[in] scaleFract fractional portion of the scale value
emilmont 1:fdd22bb7aa52 2552 * @param[in] shift number of bits to shift the result by
emilmont 1:fdd22bb7aa52 2553 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2554 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2555 * @return none.
emilmont 1:fdd22bb7aa52 2556 */
emilmont 1:fdd22bb7aa52 2557
emilmont 1:fdd22bb7aa52 2558 void arm_scale_q31(
emilmont 1:fdd22bb7aa52 2559 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 2560 q31_t scaleFract,
emilmont 1:fdd22bb7aa52 2561 int8_t shift,
emilmont 1:fdd22bb7aa52 2562 q31_t * pDst,
emilmont 1:fdd22bb7aa52 2563 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2564
emilmont 1:fdd22bb7aa52 2565 /**
emilmont 1:fdd22bb7aa52 2566 * @brief Q7 vector absolute value.
emilmont 1:fdd22bb7aa52 2567 * @param[in] *pSrc points to the input buffer
emilmont 1:fdd22bb7aa52 2568 * @param[out] *pDst points to the output buffer
emilmont 1:fdd22bb7aa52 2569 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2570 * @return none.
emilmont 1:fdd22bb7aa52 2571 */
emilmont 1:fdd22bb7aa52 2572
emilmont 1:fdd22bb7aa52 2573 void arm_abs_q7(
emilmont 1:fdd22bb7aa52 2574 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 2575 q7_t * pDst,
emilmont 1:fdd22bb7aa52 2576 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2577
emilmont 1:fdd22bb7aa52 2578 /**
emilmont 1:fdd22bb7aa52 2579 * @brief Floating-point vector absolute value.
emilmont 1:fdd22bb7aa52 2580 * @param[in] *pSrc points to the input buffer
emilmont 1:fdd22bb7aa52 2581 * @param[out] *pDst points to the output buffer
emilmont 1:fdd22bb7aa52 2582 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2583 * @return none.
emilmont 1:fdd22bb7aa52 2584 */
emilmont 1:fdd22bb7aa52 2585
emilmont 1:fdd22bb7aa52 2586 void arm_abs_f32(
emilmont 1:fdd22bb7aa52 2587 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 2588 float32_t * pDst,
emilmont 1:fdd22bb7aa52 2589 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2590
emilmont 1:fdd22bb7aa52 2591 /**
emilmont 1:fdd22bb7aa52 2592 * @brief Q15 vector absolute value.
emilmont 1:fdd22bb7aa52 2593 * @param[in] *pSrc points to the input buffer
emilmont 1:fdd22bb7aa52 2594 * @param[out] *pDst points to the output buffer
emilmont 1:fdd22bb7aa52 2595 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2596 * @return none.
emilmont 1:fdd22bb7aa52 2597 */
emilmont 1:fdd22bb7aa52 2598
emilmont 1:fdd22bb7aa52 2599 void arm_abs_q15(
emilmont 1:fdd22bb7aa52 2600 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 2601 q15_t * pDst,
emilmont 1:fdd22bb7aa52 2602 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2603
emilmont 1:fdd22bb7aa52 2604 /**
emilmont 1:fdd22bb7aa52 2605 * @brief Q31 vector absolute value.
emilmont 1:fdd22bb7aa52 2606 * @param[in] *pSrc points to the input buffer
emilmont 1:fdd22bb7aa52 2607 * @param[out] *pDst points to the output buffer
emilmont 1:fdd22bb7aa52 2608 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2609 * @return none.
emilmont 1:fdd22bb7aa52 2610 */
emilmont 1:fdd22bb7aa52 2611
emilmont 1:fdd22bb7aa52 2612 void arm_abs_q31(
emilmont 1:fdd22bb7aa52 2613 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 2614 q31_t * pDst,
emilmont 1:fdd22bb7aa52 2615 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2616
emilmont 1:fdd22bb7aa52 2617 /**
emilmont 1:fdd22bb7aa52 2618 * @brief Dot product of floating-point vectors.
emilmont 1:fdd22bb7aa52 2619 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 2620 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 2621 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2622 * @param[out] *result output result returned here
emilmont 1:fdd22bb7aa52 2623 * @return none.
emilmont 1:fdd22bb7aa52 2624 */
emilmont 1:fdd22bb7aa52 2625
emilmont 1:fdd22bb7aa52 2626 void arm_dot_prod_f32(
emilmont 1:fdd22bb7aa52 2627 float32_t * pSrcA,
emilmont 1:fdd22bb7aa52 2628 float32_t * pSrcB,
emilmont 1:fdd22bb7aa52 2629 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 2630 float32_t * result);
emilmont 1:fdd22bb7aa52 2631
emilmont 1:fdd22bb7aa52 2632 /**
emilmont 1:fdd22bb7aa52 2633 * @brief Dot product of Q7 vectors.
emilmont 1:fdd22bb7aa52 2634 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 2635 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 2636 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2637 * @param[out] *result output result returned here
emilmont 1:fdd22bb7aa52 2638 * @return none.
emilmont 1:fdd22bb7aa52 2639 */
emilmont 1:fdd22bb7aa52 2640
emilmont 1:fdd22bb7aa52 2641 void arm_dot_prod_q7(
emilmont 1:fdd22bb7aa52 2642 q7_t * pSrcA,
emilmont 1:fdd22bb7aa52 2643 q7_t * pSrcB,
emilmont 1:fdd22bb7aa52 2644 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 2645 q31_t * result);
emilmont 1:fdd22bb7aa52 2646
emilmont 1:fdd22bb7aa52 2647 /**
emilmont 1:fdd22bb7aa52 2648 * @brief Dot product of Q15 vectors.
emilmont 1:fdd22bb7aa52 2649 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 2650 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 2651 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2652 * @param[out] *result output result returned here
emilmont 1:fdd22bb7aa52 2653 * @return none.
emilmont 1:fdd22bb7aa52 2654 */
emilmont 1:fdd22bb7aa52 2655
emilmont 1:fdd22bb7aa52 2656 void arm_dot_prod_q15(
emilmont 1:fdd22bb7aa52 2657 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 2658 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 2659 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 2660 q63_t * result);
emilmont 1:fdd22bb7aa52 2661
emilmont 1:fdd22bb7aa52 2662 /**
emilmont 1:fdd22bb7aa52 2663 * @brief Dot product of Q31 vectors.
emilmont 1:fdd22bb7aa52 2664 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 2665 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 2666 * @param[in] blockSize number of samples in each vector
emilmont 1:fdd22bb7aa52 2667 * @param[out] *result output result returned here
emilmont 1:fdd22bb7aa52 2668 * @return none.
emilmont 1:fdd22bb7aa52 2669 */
emilmont 1:fdd22bb7aa52 2670
emilmont 1:fdd22bb7aa52 2671 void arm_dot_prod_q31(
emilmont 1:fdd22bb7aa52 2672 q31_t * pSrcA,
emilmont 1:fdd22bb7aa52 2673 q31_t * pSrcB,
emilmont 1:fdd22bb7aa52 2674 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 2675 q63_t * result);
emilmont 1:fdd22bb7aa52 2676
emilmont 1:fdd22bb7aa52 2677 /**
emilmont 1:fdd22bb7aa52 2678 * @brief Shifts the elements of a Q7 vector a specified number of bits.
emilmont 1:fdd22bb7aa52 2679 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2680 * @param[in] shiftBits number of bits to shift. A positive value shifts left; a negative value shifts right.
emilmont 1:fdd22bb7aa52 2681 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2682 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2683 * @return none.
emilmont 1:fdd22bb7aa52 2684 */
emilmont 1:fdd22bb7aa52 2685
emilmont 1:fdd22bb7aa52 2686 void arm_shift_q7(
emilmont 1:fdd22bb7aa52 2687 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 2688 int8_t shiftBits,
emilmont 1:fdd22bb7aa52 2689 q7_t * pDst,
emilmont 1:fdd22bb7aa52 2690 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2691
emilmont 1:fdd22bb7aa52 2692 /**
emilmont 1:fdd22bb7aa52 2693 * @brief Shifts the elements of a Q15 vector a specified number of bits.
emilmont 1:fdd22bb7aa52 2694 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2695 * @param[in] shiftBits number of bits to shift. A positive value shifts left; a negative value shifts right.
emilmont 1:fdd22bb7aa52 2696 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2697 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2698 * @return none.
emilmont 1:fdd22bb7aa52 2699 */
emilmont 1:fdd22bb7aa52 2700
emilmont 1:fdd22bb7aa52 2701 void arm_shift_q15(
emilmont 1:fdd22bb7aa52 2702 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 2703 int8_t shiftBits,
emilmont 1:fdd22bb7aa52 2704 q15_t * pDst,
emilmont 1:fdd22bb7aa52 2705 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2706
emilmont 1:fdd22bb7aa52 2707 /**
emilmont 1:fdd22bb7aa52 2708 * @brief Shifts the elements of a Q31 vector a specified number of bits.
emilmont 1:fdd22bb7aa52 2709 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2710 * @param[in] shiftBits number of bits to shift. A positive value shifts left; a negative value shifts right.
emilmont 1:fdd22bb7aa52 2711 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2712 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2713 * @return none.
emilmont 1:fdd22bb7aa52 2714 */
emilmont 1:fdd22bb7aa52 2715
emilmont 1:fdd22bb7aa52 2716 void arm_shift_q31(
emilmont 1:fdd22bb7aa52 2717 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 2718 int8_t shiftBits,
emilmont 1:fdd22bb7aa52 2719 q31_t * pDst,
emilmont 1:fdd22bb7aa52 2720 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2721
emilmont 1:fdd22bb7aa52 2722 /**
emilmont 1:fdd22bb7aa52 2723 * @brief Adds a constant offset to a floating-point vector.
emilmont 1:fdd22bb7aa52 2724 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2725 * @param[in] offset is the offset to be added
emilmont 1:fdd22bb7aa52 2726 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2727 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2728 * @return none.
emilmont 1:fdd22bb7aa52 2729 */
emilmont 1:fdd22bb7aa52 2730
emilmont 1:fdd22bb7aa52 2731 void arm_offset_f32(
emilmont 1:fdd22bb7aa52 2732 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 2733 float32_t offset,
emilmont 1:fdd22bb7aa52 2734 float32_t * pDst,
emilmont 1:fdd22bb7aa52 2735 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2736
emilmont 1:fdd22bb7aa52 2737 /**
emilmont 1:fdd22bb7aa52 2738 * @brief Adds a constant offset to a Q7 vector.
emilmont 1:fdd22bb7aa52 2739 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2740 * @param[in] offset is the offset to be added
emilmont 1:fdd22bb7aa52 2741 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2742 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2743 * @return none.
emilmont 1:fdd22bb7aa52 2744 */
emilmont 1:fdd22bb7aa52 2745
emilmont 1:fdd22bb7aa52 2746 void arm_offset_q7(
emilmont 1:fdd22bb7aa52 2747 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 2748 q7_t offset,
emilmont 1:fdd22bb7aa52 2749 q7_t * pDst,
emilmont 1:fdd22bb7aa52 2750 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2751
emilmont 1:fdd22bb7aa52 2752 /**
emilmont 1:fdd22bb7aa52 2753 * @brief Adds a constant offset to a Q15 vector.
emilmont 1:fdd22bb7aa52 2754 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2755 * @param[in] offset is the offset to be added
emilmont 1:fdd22bb7aa52 2756 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2757 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2758 * @return none.
emilmont 1:fdd22bb7aa52 2759 */
emilmont 1:fdd22bb7aa52 2760
emilmont 1:fdd22bb7aa52 2761 void arm_offset_q15(
emilmont 1:fdd22bb7aa52 2762 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 2763 q15_t offset,
emilmont 1:fdd22bb7aa52 2764 q15_t * pDst,
emilmont 1:fdd22bb7aa52 2765 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2766
emilmont 1:fdd22bb7aa52 2767 /**
emilmont 1:fdd22bb7aa52 2768 * @brief Adds a constant offset to a Q31 vector.
emilmont 1:fdd22bb7aa52 2769 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2770 * @param[in] offset is the offset to be added
emilmont 1:fdd22bb7aa52 2771 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2772 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2773 * @return none.
emilmont 1:fdd22bb7aa52 2774 */
emilmont 1:fdd22bb7aa52 2775
emilmont 1:fdd22bb7aa52 2776 void arm_offset_q31(
emilmont 1:fdd22bb7aa52 2777 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 2778 q31_t offset,
emilmont 1:fdd22bb7aa52 2779 q31_t * pDst,
emilmont 1:fdd22bb7aa52 2780 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2781
emilmont 1:fdd22bb7aa52 2782 /**
emilmont 1:fdd22bb7aa52 2783 * @brief Negates the elements of a floating-point vector.
emilmont 1:fdd22bb7aa52 2784 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2785 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2786 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2787 * @return none.
emilmont 1:fdd22bb7aa52 2788 */
emilmont 1:fdd22bb7aa52 2789
emilmont 1:fdd22bb7aa52 2790 void arm_negate_f32(
emilmont 1:fdd22bb7aa52 2791 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 2792 float32_t * pDst,
emilmont 1:fdd22bb7aa52 2793 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2794
emilmont 1:fdd22bb7aa52 2795 /**
emilmont 1:fdd22bb7aa52 2796 * @brief Negates the elements of a Q7 vector.
emilmont 1:fdd22bb7aa52 2797 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2798 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2799 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2800 * @return none.
emilmont 1:fdd22bb7aa52 2801 */
emilmont 1:fdd22bb7aa52 2802
emilmont 1:fdd22bb7aa52 2803 void arm_negate_q7(
emilmont 1:fdd22bb7aa52 2804 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 2805 q7_t * pDst,
emilmont 1:fdd22bb7aa52 2806 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2807
emilmont 1:fdd22bb7aa52 2808 /**
emilmont 1:fdd22bb7aa52 2809 * @brief Negates the elements of a Q15 vector.
emilmont 1:fdd22bb7aa52 2810 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2811 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2812 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2813 * @return none.
emilmont 1:fdd22bb7aa52 2814 */
emilmont 1:fdd22bb7aa52 2815
emilmont 1:fdd22bb7aa52 2816 void arm_negate_q15(
emilmont 1:fdd22bb7aa52 2817 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 2818 q15_t * pDst,
emilmont 1:fdd22bb7aa52 2819 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2820
emilmont 1:fdd22bb7aa52 2821 /**
emilmont 1:fdd22bb7aa52 2822 * @brief Negates the elements of a Q31 vector.
emilmont 1:fdd22bb7aa52 2823 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 2824 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 2825 * @param[in] blockSize number of samples in the vector
emilmont 1:fdd22bb7aa52 2826 * @return none.
emilmont 1:fdd22bb7aa52 2827 */
emilmont 1:fdd22bb7aa52 2828
emilmont 1:fdd22bb7aa52 2829 void arm_negate_q31(
emilmont 1:fdd22bb7aa52 2830 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 2831 q31_t * pDst,
emilmont 1:fdd22bb7aa52 2832 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2833 /**
mbed_official 3:7a284390b0ce 2834 * @brief Copies the elements of a floating-point vector.
emilmont 1:fdd22bb7aa52 2835 * @param[in] *pSrc input pointer
emilmont 1:fdd22bb7aa52 2836 * @param[out] *pDst output pointer
emilmont 1:fdd22bb7aa52 2837 * @param[in] blockSize number of samples to process
emilmont 1:fdd22bb7aa52 2838 * @return none.
emilmont 1:fdd22bb7aa52 2839 */
emilmont 1:fdd22bb7aa52 2840 void arm_copy_f32(
emilmont 1:fdd22bb7aa52 2841 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 2842 float32_t * pDst,
emilmont 1:fdd22bb7aa52 2843 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2844
emilmont 1:fdd22bb7aa52 2845 /**
mbed_official 3:7a284390b0ce 2846 * @brief Copies the elements of a Q7 vector.
emilmont 1:fdd22bb7aa52 2847 * @param[in] *pSrc input pointer
emilmont 1:fdd22bb7aa52 2848 * @param[out] *pDst output pointer
emilmont 1:fdd22bb7aa52 2849 * @param[in] blockSize number of samples to process
emilmont 1:fdd22bb7aa52 2850 * @return none.
emilmont 1:fdd22bb7aa52 2851 */
emilmont 1:fdd22bb7aa52 2852 void arm_copy_q7(
emilmont 1:fdd22bb7aa52 2853 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 2854 q7_t * pDst,
emilmont 1:fdd22bb7aa52 2855 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2856
emilmont 1:fdd22bb7aa52 2857 /**
mbed_official 3:7a284390b0ce 2858 * @brief Copies the elements of a Q15 vector.
emilmont 1:fdd22bb7aa52 2859 * @param[in] *pSrc input pointer
emilmont 1:fdd22bb7aa52 2860 * @param[out] *pDst output pointer
emilmont 1:fdd22bb7aa52 2861 * @param[in] blockSize number of samples to process
emilmont 1:fdd22bb7aa52 2862 * @return none.
emilmont 1:fdd22bb7aa52 2863 */
emilmont 1:fdd22bb7aa52 2864 void arm_copy_q15(
emilmont 1:fdd22bb7aa52 2865 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 2866 q15_t * pDst,
emilmont 1:fdd22bb7aa52 2867 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2868
emilmont 1:fdd22bb7aa52 2869 /**
mbed_official 3:7a284390b0ce 2870 * @brief Copies the elements of a Q31 vector.
emilmont 1:fdd22bb7aa52 2871 * @param[in] *pSrc input pointer
emilmont 1:fdd22bb7aa52 2872 * @param[out] *pDst output pointer
emilmont 1:fdd22bb7aa52 2873 * @param[in] blockSize number of samples to process
emilmont 1:fdd22bb7aa52 2874 * @return none.
emilmont 1:fdd22bb7aa52 2875 */
emilmont 1:fdd22bb7aa52 2876 void arm_copy_q31(
emilmont 1:fdd22bb7aa52 2877 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 2878 q31_t * pDst,
emilmont 1:fdd22bb7aa52 2879 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2880 /**
mbed_official 3:7a284390b0ce 2881 * @brief Fills a constant value into a floating-point vector.
emilmont 1:fdd22bb7aa52 2882 * @param[in] value input value to be filled
emilmont 1:fdd22bb7aa52 2883 * @param[out] *pDst output pointer
emilmont 1:fdd22bb7aa52 2884 * @param[in] blockSize number of samples to process
emilmont 1:fdd22bb7aa52 2885 * @return none.
emilmont 1:fdd22bb7aa52 2886 */
emilmont 1:fdd22bb7aa52 2887 void arm_fill_f32(
emilmont 1:fdd22bb7aa52 2888 float32_t value,
emilmont 1:fdd22bb7aa52 2889 float32_t * pDst,
emilmont 1:fdd22bb7aa52 2890 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2891
emilmont 1:fdd22bb7aa52 2892 /**
mbed_official 3:7a284390b0ce 2893 * @brief Fills a constant value into a Q7 vector.
emilmont 1:fdd22bb7aa52 2894 * @param[in] value input value to be filled
emilmont 1:fdd22bb7aa52 2895 * @param[out] *pDst output pointer
emilmont 1:fdd22bb7aa52 2896 * @param[in] blockSize number of samples to process
emilmont 1:fdd22bb7aa52 2897 * @return none.
emilmont 1:fdd22bb7aa52 2898 */
emilmont 1:fdd22bb7aa52 2899 void arm_fill_q7(
emilmont 1:fdd22bb7aa52 2900 q7_t value,
emilmont 1:fdd22bb7aa52 2901 q7_t * pDst,
emilmont 1:fdd22bb7aa52 2902 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2903
emilmont 1:fdd22bb7aa52 2904 /**
mbed_official 3:7a284390b0ce 2905 * @brief Fills a constant value into a Q15 vector.
emilmont 1:fdd22bb7aa52 2906 * @param[in] value input value to be filled
emilmont 1:fdd22bb7aa52 2907 * @param[out] *pDst output pointer
emilmont 1:fdd22bb7aa52 2908 * @param[in] blockSize number of samples to process
emilmont 1:fdd22bb7aa52 2909 * @return none.
emilmont 1:fdd22bb7aa52 2910 */
emilmont 1:fdd22bb7aa52 2911 void arm_fill_q15(
emilmont 1:fdd22bb7aa52 2912 q15_t value,
emilmont 1:fdd22bb7aa52 2913 q15_t * pDst,
emilmont 1:fdd22bb7aa52 2914 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2915
emilmont 1:fdd22bb7aa52 2916 /**
mbed_official 3:7a284390b0ce 2917 * @brief Fills a constant value into a Q31 vector.
emilmont 1:fdd22bb7aa52 2918 * @param[in] value input value to be filled
emilmont 1:fdd22bb7aa52 2919 * @param[out] *pDst output pointer
emilmont 1:fdd22bb7aa52 2920 * @param[in] blockSize number of samples to process
emilmont 1:fdd22bb7aa52 2921 * @return none.
emilmont 1:fdd22bb7aa52 2922 */
emilmont 1:fdd22bb7aa52 2923 void arm_fill_q31(
emilmont 1:fdd22bb7aa52 2924 q31_t value,
emilmont 1:fdd22bb7aa52 2925 q31_t * pDst,
emilmont 1:fdd22bb7aa52 2926 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 2927
mbed_official 3:7a284390b0ce 2928 /**
mbed_official 3:7a284390b0ce 2929 * @brief Convolution of floating-point sequences.
mbed_official 3:7a284390b0ce 2930 * @param[in] *pSrcA points to the first input sequence.
mbed_official 3:7a284390b0ce 2931 * @param[in] srcALen length of the first input sequence.
mbed_official 3:7a284390b0ce 2932 * @param[in] *pSrcB points to the second input sequence.
mbed_official 3:7a284390b0ce 2933 * @param[in] srcBLen length of the second input sequence.
mbed_official 3:7a284390b0ce 2934 * @param[out] *pDst points to the location where the output result is written. Length srcALen+srcBLen-1.
mbed_official 3:7a284390b0ce 2935 * @return none.
emilmont 1:fdd22bb7aa52 2936 */
emilmont 1:fdd22bb7aa52 2937
emilmont 1:fdd22bb7aa52 2938 void arm_conv_f32(
emilmont 1:fdd22bb7aa52 2939 float32_t * pSrcA,
emilmont 1:fdd22bb7aa52 2940 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 2941 float32_t * pSrcB,
emilmont 1:fdd22bb7aa52 2942 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 2943 float32_t * pDst);
emilmont 1:fdd22bb7aa52 2944
mbed_official 3:7a284390b0ce 2945
mbed_official 3:7a284390b0ce 2946 /**
mbed_official 3:7a284390b0ce 2947 * @brief Convolution of Q15 sequences.
mbed_official 3:7a284390b0ce 2948 * @param[in] *pSrcA points to the first input sequence.
mbed_official 3:7a284390b0ce 2949 * @param[in] srcALen length of the first input sequence.
mbed_official 3:7a284390b0ce 2950 * @param[in] *pSrcB points to the second input sequence.
mbed_official 3:7a284390b0ce 2951 * @param[in] srcBLen length of the second input sequence.
mbed_official 3:7a284390b0ce 2952 * @param[out] *pDst points to the block of output data Length srcALen+srcBLen-1.
mbed_official 3:7a284390b0ce 2953 * @param[in] *pScratch1 points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
mbed_official 3:7a284390b0ce 2954 * @param[in] *pScratch2 points to scratch buffer of size min(srcALen, srcBLen).
mbed_official 3:7a284390b0ce 2955 * @return none.
emilmont 1:fdd22bb7aa52 2956 */
emilmont 1:fdd22bb7aa52 2957
emilmont 1:fdd22bb7aa52 2958
emilmont 1:fdd22bb7aa52 2959 void arm_conv_opt_q15(
emilmont 1:fdd22bb7aa52 2960 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 2961 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 2962 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 2963 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 2964 q15_t * pDst,
emilmont 1:fdd22bb7aa52 2965 q15_t * pScratch1,
emilmont 1:fdd22bb7aa52 2966 q15_t * pScratch2);
emilmont 1:fdd22bb7aa52 2967
emilmont 1:fdd22bb7aa52 2968
mbed_official 3:7a284390b0ce 2969 /**
mbed_official 3:7a284390b0ce 2970 * @brief Convolution of Q15 sequences.
mbed_official 3:7a284390b0ce 2971 * @param[in] *pSrcA points to the first input sequence.
mbed_official 3:7a284390b0ce 2972 * @param[in] srcALen length of the first input sequence.
mbed_official 3:7a284390b0ce 2973 * @param[in] *pSrcB points to the second input sequence.
mbed_official 3:7a284390b0ce 2974 * @param[in] srcBLen length of the second input sequence.
mbed_official 3:7a284390b0ce 2975 * @param[out] *pDst points to the location where the output result is written. Length srcALen+srcBLen-1.
mbed_official 3:7a284390b0ce 2976 * @return none.
emilmont 1:fdd22bb7aa52 2977 */
emilmont 1:fdd22bb7aa52 2978
emilmont 1:fdd22bb7aa52 2979 void arm_conv_q15(
emilmont 1:fdd22bb7aa52 2980 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 2981 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 2982 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 2983 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 2984 q15_t * pDst);
emilmont 1:fdd22bb7aa52 2985
emilmont 1:fdd22bb7aa52 2986 /**
emilmont 1:fdd22bb7aa52 2987 * @brief Convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4
emilmont 1:fdd22bb7aa52 2988 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 2989 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 2990 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 2991 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 2992 * @param[out] *pDst points to the block of output data Length srcALen+srcBLen-1.
emilmont 1:fdd22bb7aa52 2993 * @return none.
emilmont 1:fdd22bb7aa52 2994 */
emilmont 1:fdd22bb7aa52 2995
emilmont 1:fdd22bb7aa52 2996 void arm_conv_fast_q15(
emilmont 2:da51fb522205 2997 q15_t * pSrcA,
emilmont 2:da51fb522205 2998 uint32_t srcALen,
emilmont 2:da51fb522205 2999 q15_t * pSrcB,
emilmont 2:da51fb522205 3000 uint32_t srcBLen,
emilmont 2:da51fb522205 3001 q15_t * pDst);
emilmont 1:fdd22bb7aa52 3002
emilmont 1:fdd22bb7aa52 3003 /**
emilmont 1:fdd22bb7aa52 3004 * @brief Convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4
emilmont 1:fdd22bb7aa52 3005 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 3006 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 3007 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 3008 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 3009 * @param[out] *pDst points to the block of output data Length srcALen+srcBLen-1.
mbed_official 3:7a284390b0ce 3010 * @param[in] *pScratch1 points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
mbed_official 3:7a284390b0ce 3011 * @param[in] *pScratch2 points to scratch buffer of size min(srcALen, srcBLen).
mbed_official 3:7a284390b0ce 3012 * @return none.
emilmont 1:fdd22bb7aa52 3013 */
emilmont 1:fdd22bb7aa52 3014
emilmont 1:fdd22bb7aa52 3015 void arm_conv_fast_opt_q15(
emilmont 1:fdd22bb7aa52 3016 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 3017 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3018 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 3019 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3020 q15_t * pDst,
emilmont 1:fdd22bb7aa52 3021 q15_t * pScratch1,
emilmont 1:fdd22bb7aa52 3022 q15_t * pScratch2);
emilmont 1:fdd22bb7aa52 3023
emilmont 1:fdd22bb7aa52 3024
emilmont 1:fdd22bb7aa52 3025
emilmont 1:fdd22bb7aa52 3026 /**
emilmont 1:fdd22bb7aa52 3027 * @brief Convolution of Q31 sequences.
emilmont 1:fdd22bb7aa52 3028 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 3029 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 3030 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 3031 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 3032 * @param[out] *pDst points to the block of output data Length srcALen+srcBLen-1.
emilmont 1:fdd22bb7aa52 3033 * @return none.
emilmont 1:fdd22bb7aa52 3034 */
emilmont 1:fdd22bb7aa52 3035
emilmont 1:fdd22bb7aa52 3036 void arm_conv_q31(
emilmont 1:fdd22bb7aa52 3037 q31_t * pSrcA,
emilmont 1:fdd22bb7aa52 3038 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3039 q31_t * pSrcB,
emilmont 1:fdd22bb7aa52 3040 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3041 q31_t * pDst);
emilmont 1:fdd22bb7aa52 3042
emilmont 1:fdd22bb7aa52 3043 /**
emilmont 1:fdd22bb7aa52 3044 * @brief Convolution of Q31 sequences (fast version) for Cortex-M3 and Cortex-M4
emilmont 1:fdd22bb7aa52 3045 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 3046 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 3047 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 3048 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 3049 * @param[out] *pDst points to the block of output data Length srcALen+srcBLen-1.
emilmont 1:fdd22bb7aa52 3050 * @return none.
emilmont 1:fdd22bb7aa52 3051 */
emilmont 1:fdd22bb7aa52 3052
emilmont 1:fdd22bb7aa52 3053 void arm_conv_fast_q31(
emilmont 1:fdd22bb7aa52 3054 q31_t * pSrcA,
emilmont 1:fdd22bb7aa52 3055 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3056 q31_t * pSrcB,
emilmont 1:fdd22bb7aa52 3057 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3058 q31_t * pDst);
emilmont 1:fdd22bb7aa52 3059
emilmont 1:fdd22bb7aa52 3060
mbed_official 3:7a284390b0ce 3061 /**
mbed_official 3:7a284390b0ce 3062 * @brief Convolution of Q7 sequences.
mbed_official 3:7a284390b0ce 3063 * @param[in] *pSrcA points to the first input sequence.
mbed_official 3:7a284390b0ce 3064 * @param[in] srcALen length of the first input sequence.
mbed_official 3:7a284390b0ce 3065 * @param[in] *pSrcB points to the second input sequence.
mbed_official 3:7a284390b0ce 3066 * @param[in] srcBLen length of the second input sequence.
mbed_official 3:7a284390b0ce 3067 * @param[out] *pDst points to the block of output data Length srcALen+srcBLen-1.
mbed_official 3:7a284390b0ce 3068 * @param[in] *pScratch1 points to scratch buffer(of type q15_t) of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
mbed_official 3:7a284390b0ce 3069 * @param[in] *pScratch2 points to scratch buffer (of type q15_t) of size min(srcALen, srcBLen).
mbed_official 3:7a284390b0ce 3070 * @return none.
emilmont 1:fdd22bb7aa52 3071 */
emilmont 1:fdd22bb7aa52 3072
emilmont 1:fdd22bb7aa52 3073 void arm_conv_opt_q7(
emilmont 1:fdd22bb7aa52 3074 q7_t * pSrcA,
emilmont 1:fdd22bb7aa52 3075 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3076 q7_t * pSrcB,
emilmont 1:fdd22bb7aa52 3077 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3078 q7_t * pDst,
emilmont 1:fdd22bb7aa52 3079 q15_t * pScratch1,
emilmont 1:fdd22bb7aa52 3080 q15_t * pScratch2);
emilmont 1:fdd22bb7aa52 3081
emilmont 1:fdd22bb7aa52 3082
emilmont 1:fdd22bb7aa52 3083
emilmont 1:fdd22bb7aa52 3084 /**
emilmont 1:fdd22bb7aa52 3085 * @brief Convolution of Q7 sequences.
emilmont 1:fdd22bb7aa52 3086 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 3087 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 3088 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 3089 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 3090 * @param[out] *pDst points to the block of output data Length srcALen+srcBLen-1.
emilmont 1:fdd22bb7aa52 3091 * @return none.
emilmont 1:fdd22bb7aa52 3092 */
emilmont 1:fdd22bb7aa52 3093
emilmont 1:fdd22bb7aa52 3094 void arm_conv_q7(
emilmont 1:fdd22bb7aa52 3095 q7_t * pSrcA,
emilmont 1:fdd22bb7aa52 3096 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3097 q7_t * pSrcB,
emilmont 1:fdd22bb7aa52 3098 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3099 q7_t * pDst);
emilmont 1:fdd22bb7aa52 3100
emilmont 1:fdd22bb7aa52 3101
emilmont 1:fdd22bb7aa52 3102 /**
emilmont 1:fdd22bb7aa52 3103 * @brief Partial convolution of floating-point sequences.
emilmont 1:fdd22bb7aa52 3104 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 3105 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 3106 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 3107 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 3108 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3109 * @param[in] firstIndex is the first output sample to start with.
emilmont 1:fdd22bb7aa52 3110 * @param[in] numPoints is the number of output points to be computed.
emilmont 1:fdd22bb7aa52 3111 * @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].
emilmont 1:fdd22bb7aa52 3112 */
emilmont 1:fdd22bb7aa52 3113
emilmont 1:fdd22bb7aa52 3114 arm_status arm_conv_partial_f32(
emilmont 1:fdd22bb7aa52 3115 float32_t * pSrcA,
emilmont 1:fdd22bb7aa52 3116 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3117 float32_t * pSrcB,
emilmont 1:fdd22bb7aa52 3118 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3119 float32_t * pDst,
emilmont 1:fdd22bb7aa52 3120 uint32_t firstIndex,
emilmont 1:fdd22bb7aa52 3121 uint32_t numPoints);
emilmont 1:fdd22bb7aa52 3122
mbed_official 3:7a284390b0ce 3123 /**
mbed_official 3:7a284390b0ce 3124 * @brief Partial convolution of Q15 sequences.
mbed_official 3:7a284390b0ce 3125 * @param[in] *pSrcA points to the first input sequence.
mbed_official 3:7a284390b0ce 3126 * @param[in] srcALen length of the first input sequence.
mbed_official 3:7a284390b0ce 3127 * @param[in] *pSrcB points to the second input sequence.
mbed_official 3:7a284390b0ce 3128 * @param[in] srcBLen length of the second input sequence.
mbed_official 3:7a284390b0ce 3129 * @param[out] *pDst points to the block of output data
mbed_official 3:7a284390b0ce 3130 * @param[in] firstIndex is the first output sample to start with.
mbed_official 3:7a284390b0ce 3131 * @param[in] numPoints is the number of output points to be computed.
mbed_official 3:7a284390b0ce 3132 * @param[in] * pScratch1 points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
mbed_official 3:7a284390b0ce 3133 * @param[in] * pScratch2 points to scratch buffer of size min(srcALen, srcBLen).
mbed_official 3:7a284390b0ce 3134 * @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].
emilmont 1:fdd22bb7aa52 3135 */
emilmont 1:fdd22bb7aa52 3136
emilmont 1:fdd22bb7aa52 3137 arm_status arm_conv_partial_opt_q15(
emilmont 1:fdd22bb7aa52 3138 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 3139 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3140 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 3141 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3142 q15_t * pDst,
emilmont 1:fdd22bb7aa52 3143 uint32_t firstIndex,
emilmont 1:fdd22bb7aa52 3144 uint32_t numPoints,
emilmont 1:fdd22bb7aa52 3145 q15_t * pScratch1,
emilmont 1:fdd22bb7aa52 3146 q15_t * pScratch2);
emilmont 1:fdd22bb7aa52 3147
emilmont 1:fdd22bb7aa52 3148
emilmont 1:fdd22bb7aa52 3149 /**
emilmont 1:fdd22bb7aa52 3150 * @brief Partial convolution of Q15 sequences.
emilmont 1:fdd22bb7aa52 3151 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 3152 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 3153 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 3154 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 3155 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3156 * @param[in] firstIndex is the first output sample to start with.
emilmont 1:fdd22bb7aa52 3157 * @param[in] numPoints is the number of output points to be computed.
emilmont 1:fdd22bb7aa52 3158 * @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].
emilmont 1:fdd22bb7aa52 3159 */
emilmont 1:fdd22bb7aa52 3160
emilmont 1:fdd22bb7aa52 3161 arm_status arm_conv_partial_q15(
emilmont 1:fdd22bb7aa52 3162 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 3163 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3164 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 3165 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3166 q15_t * pDst,
emilmont 1:fdd22bb7aa52 3167 uint32_t firstIndex,
emilmont 1:fdd22bb7aa52 3168 uint32_t numPoints);
emilmont 1:fdd22bb7aa52 3169
emilmont 1:fdd22bb7aa52 3170 /**
emilmont 1:fdd22bb7aa52 3171 * @brief Partial convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4
emilmont 1:fdd22bb7aa52 3172 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 3173 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 3174 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 3175 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 3176 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3177 * @param[in] firstIndex is the first output sample to start with.
emilmont 1:fdd22bb7aa52 3178 * @param[in] numPoints is the number of output points to be computed.
emilmont 1:fdd22bb7aa52 3179 * @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].
emilmont 1:fdd22bb7aa52 3180 */
emilmont 1:fdd22bb7aa52 3181
emilmont 1:fdd22bb7aa52 3182 arm_status arm_conv_partial_fast_q15(
emilmont 2:da51fb522205 3183 q15_t * pSrcA,
emilmont 2:da51fb522205 3184 uint32_t srcALen,
emilmont 2:da51fb522205 3185 q15_t * pSrcB,
emilmont 2:da51fb522205 3186 uint32_t srcBLen,
emilmont 2:da51fb522205 3187 q15_t * pDst,
emilmont 2:da51fb522205 3188 uint32_t firstIndex,
emilmont 2:da51fb522205 3189 uint32_t numPoints);
emilmont 1:fdd22bb7aa52 3190
emilmont 1:fdd22bb7aa52 3191
emilmont 1:fdd22bb7aa52 3192 /**
emilmont 1:fdd22bb7aa52 3193 * @brief Partial convolution of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4
emilmont 1:fdd22bb7aa52 3194 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 3195 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 3196 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 3197 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 3198 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3199 * @param[in] firstIndex is the first output sample to start with.
emilmont 1:fdd22bb7aa52 3200 * @param[in] numPoints is the number of output points to be computed.
mbed_official 3:7a284390b0ce 3201 * @param[in] * pScratch1 points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
mbed_official 3:7a284390b0ce 3202 * @param[in] * pScratch2 points to scratch buffer of size min(srcALen, srcBLen).
mbed_official 3:7a284390b0ce 3203 * @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].
emilmont 1:fdd22bb7aa52 3204 */
emilmont 1:fdd22bb7aa52 3205
emilmont 1:fdd22bb7aa52 3206 arm_status arm_conv_partial_fast_opt_q15(
emilmont 1:fdd22bb7aa52 3207 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 3208 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3209 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 3210 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3211 q15_t * pDst,
emilmont 1:fdd22bb7aa52 3212 uint32_t firstIndex,
emilmont 1:fdd22bb7aa52 3213 uint32_t numPoints,
emilmont 1:fdd22bb7aa52 3214 q15_t * pScratch1,
emilmont 1:fdd22bb7aa52 3215 q15_t * pScratch2);
emilmont 1:fdd22bb7aa52 3216
emilmont 1:fdd22bb7aa52 3217
emilmont 1:fdd22bb7aa52 3218 /**
emilmont 1:fdd22bb7aa52 3219 * @brief Partial convolution of Q31 sequences.
emilmont 1:fdd22bb7aa52 3220 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 3221 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 3222 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 3223 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 3224 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3225 * @param[in] firstIndex is the first output sample to start with.
emilmont 1:fdd22bb7aa52 3226 * @param[in] numPoints is the number of output points to be computed.
emilmont 1:fdd22bb7aa52 3227 * @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].
emilmont 1:fdd22bb7aa52 3228 */
emilmont 1:fdd22bb7aa52 3229
emilmont 1:fdd22bb7aa52 3230 arm_status arm_conv_partial_q31(
emilmont 1:fdd22bb7aa52 3231 q31_t * pSrcA,
emilmont 1:fdd22bb7aa52 3232 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3233 q31_t * pSrcB,
emilmont 1:fdd22bb7aa52 3234 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3235 q31_t * pDst,
emilmont 1:fdd22bb7aa52 3236 uint32_t firstIndex,
emilmont 1:fdd22bb7aa52 3237 uint32_t numPoints);
emilmont 1:fdd22bb7aa52 3238
emilmont 1:fdd22bb7aa52 3239
emilmont 1:fdd22bb7aa52 3240 /**
emilmont 1:fdd22bb7aa52 3241 * @brief Partial convolution of Q31 sequences (fast version) for Cortex-M3 and Cortex-M4
emilmont 1:fdd22bb7aa52 3242 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 3243 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 3244 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 3245 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 3246 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3247 * @param[in] firstIndex is the first output sample to start with.
emilmont 1:fdd22bb7aa52 3248 * @param[in] numPoints is the number of output points to be computed.
emilmont 1:fdd22bb7aa52 3249 * @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].
emilmont 1:fdd22bb7aa52 3250 */
emilmont 1:fdd22bb7aa52 3251
emilmont 1:fdd22bb7aa52 3252 arm_status arm_conv_partial_fast_q31(
emilmont 1:fdd22bb7aa52 3253 q31_t * pSrcA,
emilmont 1:fdd22bb7aa52 3254 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3255 q31_t * pSrcB,
emilmont 1:fdd22bb7aa52 3256 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3257 q31_t * pDst,
emilmont 1:fdd22bb7aa52 3258 uint32_t firstIndex,
emilmont 1:fdd22bb7aa52 3259 uint32_t numPoints);
emilmont 1:fdd22bb7aa52 3260
emilmont 1:fdd22bb7aa52 3261
mbed_official 3:7a284390b0ce 3262 /**
mbed_official 3:7a284390b0ce 3263 * @brief Partial convolution of Q7 sequences
mbed_official 3:7a284390b0ce 3264 * @param[in] *pSrcA points to the first input sequence.
mbed_official 3:7a284390b0ce 3265 * @param[in] srcALen length of the first input sequence.
mbed_official 3:7a284390b0ce 3266 * @param[in] *pSrcB points to the second input sequence.
mbed_official 3:7a284390b0ce 3267 * @param[in] srcBLen length of the second input sequence.
mbed_official 3:7a284390b0ce 3268 * @param[out] *pDst points to the block of output data
mbed_official 3:7a284390b0ce 3269 * @param[in] firstIndex is the first output sample to start with.
mbed_official 3:7a284390b0ce 3270 * @param[in] numPoints is the number of output points to be computed.
mbed_official 3:7a284390b0ce 3271 * @param[in] *pScratch1 points to scratch buffer(of type q15_t) of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
mbed_official 3:7a284390b0ce 3272 * @param[in] *pScratch2 points to scratch buffer (of type q15_t) of size min(srcALen, srcBLen).
mbed_official 3:7a284390b0ce 3273 * @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].
emilmont 1:fdd22bb7aa52 3274 */
emilmont 1:fdd22bb7aa52 3275
emilmont 1:fdd22bb7aa52 3276 arm_status arm_conv_partial_opt_q7(
emilmont 1:fdd22bb7aa52 3277 q7_t * pSrcA,
emilmont 1:fdd22bb7aa52 3278 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3279 q7_t * pSrcB,
emilmont 1:fdd22bb7aa52 3280 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3281 q7_t * pDst,
emilmont 1:fdd22bb7aa52 3282 uint32_t firstIndex,
emilmont 1:fdd22bb7aa52 3283 uint32_t numPoints,
emilmont 1:fdd22bb7aa52 3284 q15_t * pScratch1,
emilmont 1:fdd22bb7aa52 3285 q15_t * pScratch2);
emilmont 1:fdd22bb7aa52 3286
emilmont 1:fdd22bb7aa52 3287
emilmont 1:fdd22bb7aa52 3288 /**
emilmont 1:fdd22bb7aa52 3289 * @brief Partial convolution of Q7 sequences.
emilmont 1:fdd22bb7aa52 3290 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 3291 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 3292 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 3293 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 3294 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3295 * @param[in] firstIndex is the first output sample to start with.
emilmont 1:fdd22bb7aa52 3296 * @param[in] numPoints is the number of output points to be computed.
emilmont 1:fdd22bb7aa52 3297 * @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].
emilmont 1:fdd22bb7aa52 3298 */
emilmont 1:fdd22bb7aa52 3299
emilmont 1:fdd22bb7aa52 3300 arm_status arm_conv_partial_q7(
emilmont 1:fdd22bb7aa52 3301 q7_t * pSrcA,
emilmont 1:fdd22bb7aa52 3302 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 3303 q7_t * pSrcB,
emilmont 1:fdd22bb7aa52 3304 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 3305 q7_t * pDst,
emilmont 1:fdd22bb7aa52 3306 uint32_t firstIndex,
emilmont 1:fdd22bb7aa52 3307 uint32_t numPoints);
emilmont 1:fdd22bb7aa52 3308
emilmont 1:fdd22bb7aa52 3309
emilmont 1:fdd22bb7aa52 3310
emilmont 1:fdd22bb7aa52 3311 /**
emilmont 1:fdd22bb7aa52 3312 * @brief Instance structure for the Q15 FIR decimator.
emilmont 1:fdd22bb7aa52 3313 */
emilmont 1:fdd22bb7aa52 3314
emilmont 1:fdd22bb7aa52 3315 typedef struct
emilmont 1:fdd22bb7aa52 3316 {
emilmont 1:fdd22bb7aa52 3317 uint8_t M; /**< decimation factor. */
emilmont 1:fdd22bb7aa52 3318 uint16_t numTaps; /**< number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 3319 q15_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/
emilmont 1:fdd22bb7aa52 3320 q15_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 3321 } arm_fir_decimate_instance_q15;
emilmont 1:fdd22bb7aa52 3322
emilmont 1:fdd22bb7aa52 3323 /**
emilmont 1:fdd22bb7aa52 3324 * @brief Instance structure for the Q31 FIR decimator.
emilmont 1:fdd22bb7aa52 3325 */
emilmont 1:fdd22bb7aa52 3326
emilmont 1:fdd22bb7aa52 3327 typedef struct
emilmont 1:fdd22bb7aa52 3328 {
emilmont 1:fdd22bb7aa52 3329 uint8_t M; /**< decimation factor. */
emilmont 1:fdd22bb7aa52 3330 uint16_t numTaps; /**< number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 3331 q31_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/
emilmont 1:fdd22bb7aa52 3332 q31_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 3333
emilmont 1:fdd22bb7aa52 3334 } arm_fir_decimate_instance_q31;
emilmont 1:fdd22bb7aa52 3335
emilmont 1:fdd22bb7aa52 3336 /**
emilmont 1:fdd22bb7aa52 3337 * @brief Instance structure for the floating-point FIR decimator.
emilmont 1:fdd22bb7aa52 3338 */
emilmont 1:fdd22bb7aa52 3339
emilmont 1:fdd22bb7aa52 3340 typedef struct
emilmont 1:fdd22bb7aa52 3341 {
emilmont 1:fdd22bb7aa52 3342 uint8_t M; /**< decimation factor. */
emilmont 1:fdd22bb7aa52 3343 uint16_t numTaps; /**< number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 3344 float32_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/
emilmont 1:fdd22bb7aa52 3345 float32_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 3346
emilmont 1:fdd22bb7aa52 3347 } arm_fir_decimate_instance_f32;
emilmont 1:fdd22bb7aa52 3348
emilmont 1:fdd22bb7aa52 3349
emilmont 1:fdd22bb7aa52 3350
emilmont 1:fdd22bb7aa52 3351 /**
emilmont 1:fdd22bb7aa52 3352 * @brief Processing function for the floating-point FIR decimator.
emilmont 1:fdd22bb7aa52 3353 * @param[in] *S points to an instance of the floating-point FIR decimator structure.
emilmont 1:fdd22bb7aa52 3354 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3355 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3356 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3357 * @return none
emilmont 1:fdd22bb7aa52 3358 */
emilmont 1:fdd22bb7aa52 3359
emilmont 1:fdd22bb7aa52 3360 void arm_fir_decimate_f32(
emilmont 1:fdd22bb7aa52 3361 const arm_fir_decimate_instance_f32 * S,
emilmont 1:fdd22bb7aa52 3362 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 3363 float32_t * pDst,
emilmont 1:fdd22bb7aa52 3364 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3365
emilmont 1:fdd22bb7aa52 3366
emilmont 1:fdd22bb7aa52 3367 /**
emilmont 1:fdd22bb7aa52 3368 * @brief Initialization function for the floating-point FIR decimator.
emilmont 1:fdd22bb7aa52 3369 * @param[in,out] *S points to an instance of the floating-point FIR decimator structure.
emilmont 1:fdd22bb7aa52 3370 * @param[in] numTaps number of coefficients in the filter.
emilmont 1:fdd22bb7aa52 3371 * @param[in] M decimation factor.
emilmont 1:fdd22bb7aa52 3372 * @param[in] *pCoeffs points to the filter coefficients.
emilmont 1:fdd22bb7aa52 3373 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 3374 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3375 * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_LENGTH_ERROR if
emilmont 1:fdd22bb7aa52 3376 * <code>blockSize</code> is not a multiple of <code>M</code>.
emilmont 1:fdd22bb7aa52 3377 */
emilmont 1:fdd22bb7aa52 3378
emilmont 1:fdd22bb7aa52 3379 arm_status arm_fir_decimate_init_f32(
emilmont 1:fdd22bb7aa52 3380 arm_fir_decimate_instance_f32 * S,
emilmont 1:fdd22bb7aa52 3381 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 3382 uint8_t M,
emilmont 1:fdd22bb7aa52 3383 float32_t * pCoeffs,
emilmont 1:fdd22bb7aa52 3384 float32_t * pState,
emilmont 1:fdd22bb7aa52 3385 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3386
emilmont 1:fdd22bb7aa52 3387 /**
emilmont 1:fdd22bb7aa52 3388 * @brief Processing function for the Q15 FIR decimator.
emilmont 1:fdd22bb7aa52 3389 * @param[in] *S points to an instance of the Q15 FIR decimator structure.
emilmont 1:fdd22bb7aa52 3390 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3391 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3392 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3393 * @return none
emilmont 1:fdd22bb7aa52 3394 */
emilmont 1:fdd22bb7aa52 3395
emilmont 1:fdd22bb7aa52 3396 void arm_fir_decimate_q15(
emilmont 1:fdd22bb7aa52 3397 const arm_fir_decimate_instance_q15 * S,
emilmont 1:fdd22bb7aa52 3398 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 3399 q15_t * pDst,
emilmont 1:fdd22bb7aa52 3400 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3401
emilmont 1:fdd22bb7aa52 3402 /**
emilmont 1:fdd22bb7aa52 3403 * @brief Processing function for the Q15 FIR decimator (fast variant) for Cortex-M3 and Cortex-M4.
emilmont 1:fdd22bb7aa52 3404 * @param[in] *S points to an instance of the Q15 FIR decimator structure.
emilmont 1:fdd22bb7aa52 3405 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3406 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3407 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3408 * @return none
emilmont 1:fdd22bb7aa52 3409 */
emilmont 1:fdd22bb7aa52 3410
emilmont 1:fdd22bb7aa52 3411 void arm_fir_decimate_fast_q15(
emilmont 1:fdd22bb7aa52 3412 const arm_fir_decimate_instance_q15 * S,
emilmont 1:fdd22bb7aa52 3413 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 3414 q15_t * pDst,
emilmont 1:fdd22bb7aa52 3415 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3416
emilmont 1:fdd22bb7aa52 3417
emilmont 1:fdd22bb7aa52 3418
emilmont 1:fdd22bb7aa52 3419 /**
emilmont 1:fdd22bb7aa52 3420 * @brief Initialization function for the Q15 FIR decimator.
emilmont 1:fdd22bb7aa52 3421 * @param[in,out] *S points to an instance of the Q15 FIR decimator structure.
emilmont 1:fdd22bb7aa52 3422 * @param[in] numTaps number of coefficients in the filter.
emilmont 1:fdd22bb7aa52 3423 * @param[in] M decimation factor.
emilmont 1:fdd22bb7aa52 3424 * @param[in] *pCoeffs points to the filter coefficients.
emilmont 1:fdd22bb7aa52 3425 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 3426 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3427 * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_LENGTH_ERROR if
emilmont 1:fdd22bb7aa52 3428 * <code>blockSize</code> is not a multiple of <code>M</code>.
emilmont 1:fdd22bb7aa52 3429 */
emilmont 1:fdd22bb7aa52 3430
emilmont 1:fdd22bb7aa52 3431 arm_status arm_fir_decimate_init_q15(
emilmont 1:fdd22bb7aa52 3432 arm_fir_decimate_instance_q15 * S,
emilmont 1:fdd22bb7aa52 3433 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 3434 uint8_t M,
emilmont 1:fdd22bb7aa52 3435 q15_t * pCoeffs,
emilmont 1:fdd22bb7aa52 3436 q15_t * pState,
emilmont 1:fdd22bb7aa52 3437 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3438
emilmont 1:fdd22bb7aa52 3439 /**
emilmont 1:fdd22bb7aa52 3440 * @brief Processing function for the Q31 FIR decimator.
emilmont 1:fdd22bb7aa52 3441 * @param[in] *S points to an instance of the Q31 FIR decimator structure.
emilmont 1:fdd22bb7aa52 3442 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3443 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3444 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3445 * @return none
emilmont 1:fdd22bb7aa52 3446 */
emilmont 1:fdd22bb7aa52 3447
emilmont 1:fdd22bb7aa52 3448 void arm_fir_decimate_q31(
emilmont 1:fdd22bb7aa52 3449 const arm_fir_decimate_instance_q31 * S,
emilmont 1:fdd22bb7aa52 3450 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 3451 q31_t * pDst,
emilmont 1:fdd22bb7aa52 3452 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3453
emilmont 1:fdd22bb7aa52 3454 /**
emilmont 1:fdd22bb7aa52 3455 * @brief Processing function for the Q31 FIR decimator (fast variant) for Cortex-M3 and Cortex-M4.
emilmont 1:fdd22bb7aa52 3456 * @param[in] *S points to an instance of the Q31 FIR decimator structure.
emilmont 1:fdd22bb7aa52 3457 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3458 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3459 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3460 * @return none
emilmont 1:fdd22bb7aa52 3461 */
emilmont 1:fdd22bb7aa52 3462
emilmont 1:fdd22bb7aa52 3463 void arm_fir_decimate_fast_q31(
emilmont 1:fdd22bb7aa52 3464 arm_fir_decimate_instance_q31 * S,
emilmont 1:fdd22bb7aa52 3465 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 3466 q31_t * pDst,
emilmont 1:fdd22bb7aa52 3467 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3468
emilmont 1:fdd22bb7aa52 3469
emilmont 1:fdd22bb7aa52 3470 /**
emilmont 1:fdd22bb7aa52 3471 * @brief Initialization function for the Q31 FIR decimator.
emilmont 1:fdd22bb7aa52 3472 * @param[in,out] *S points to an instance of the Q31 FIR decimator structure.
emilmont 1:fdd22bb7aa52 3473 * @param[in] numTaps number of coefficients in the filter.
emilmont 1:fdd22bb7aa52 3474 * @param[in] M decimation factor.
emilmont 1:fdd22bb7aa52 3475 * @param[in] *pCoeffs points to the filter coefficients.
emilmont 1:fdd22bb7aa52 3476 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 3477 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3478 * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_LENGTH_ERROR if
emilmont 1:fdd22bb7aa52 3479 * <code>blockSize</code> is not a multiple of <code>M</code>.
emilmont 1:fdd22bb7aa52 3480 */
emilmont 1:fdd22bb7aa52 3481
emilmont 1:fdd22bb7aa52 3482 arm_status arm_fir_decimate_init_q31(
emilmont 1:fdd22bb7aa52 3483 arm_fir_decimate_instance_q31 * S,
emilmont 1:fdd22bb7aa52 3484 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 3485 uint8_t M,
emilmont 1:fdd22bb7aa52 3486 q31_t * pCoeffs,
emilmont 1:fdd22bb7aa52 3487 q31_t * pState,
emilmont 1:fdd22bb7aa52 3488 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3489
emilmont 1:fdd22bb7aa52 3490
emilmont 1:fdd22bb7aa52 3491
emilmont 1:fdd22bb7aa52 3492 /**
emilmont 1:fdd22bb7aa52 3493 * @brief Instance structure for the Q15 FIR interpolator.
emilmont 1:fdd22bb7aa52 3494 */
emilmont 1:fdd22bb7aa52 3495
emilmont 1:fdd22bb7aa52 3496 typedef struct
emilmont 1:fdd22bb7aa52 3497 {
emilmont 1:fdd22bb7aa52 3498 uint8_t L; /**< upsample factor. */
emilmont 1:fdd22bb7aa52 3499 uint16_t phaseLength; /**< length of each polyphase filter component. */
emilmont 1:fdd22bb7aa52 3500 q15_t *pCoeffs; /**< points to the coefficient array. The array is of length L*phaseLength. */
emilmont 1:fdd22bb7aa52 3501 q15_t *pState; /**< points to the state variable array. The array is of length blockSize+phaseLength-1. */
emilmont 1:fdd22bb7aa52 3502 } arm_fir_interpolate_instance_q15;
emilmont 1:fdd22bb7aa52 3503
emilmont 1:fdd22bb7aa52 3504 /**
emilmont 1:fdd22bb7aa52 3505 * @brief Instance structure for the Q31 FIR interpolator.
emilmont 1:fdd22bb7aa52 3506 */
emilmont 1:fdd22bb7aa52 3507
emilmont 1:fdd22bb7aa52 3508 typedef struct
emilmont 1:fdd22bb7aa52 3509 {
emilmont 1:fdd22bb7aa52 3510 uint8_t L; /**< upsample factor. */
emilmont 1:fdd22bb7aa52 3511 uint16_t phaseLength; /**< length of each polyphase filter component. */
emilmont 1:fdd22bb7aa52 3512 q31_t *pCoeffs; /**< points to the coefficient array. The array is of length L*phaseLength. */
emilmont 1:fdd22bb7aa52 3513 q31_t *pState; /**< points to the state variable array. The array is of length blockSize+phaseLength-1. */
emilmont 1:fdd22bb7aa52 3514 } arm_fir_interpolate_instance_q31;
emilmont 1:fdd22bb7aa52 3515
emilmont 1:fdd22bb7aa52 3516 /**
emilmont 1:fdd22bb7aa52 3517 * @brief Instance structure for the floating-point FIR interpolator.
emilmont 1:fdd22bb7aa52 3518 */
emilmont 1:fdd22bb7aa52 3519
emilmont 1:fdd22bb7aa52 3520 typedef struct
emilmont 1:fdd22bb7aa52 3521 {
emilmont 1:fdd22bb7aa52 3522 uint8_t L; /**< upsample factor. */
emilmont 1:fdd22bb7aa52 3523 uint16_t phaseLength; /**< length of each polyphase filter component. */
emilmont 1:fdd22bb7aa52 3524 float32_t *pCoeffs; /**< points to the coefficient array. The array is of length L*phaseLength. */
emilmont 1:fdd22bb7aa52 3525 float32_t *pState; /**< points to the state variable array. The array is of length phaseLength+numTaps-1. */
emilmont 1:fdd22bb7aa52 3526 } arm_fir_interpolate_instance_f32;
emilmont 1:fdd22bb7aa52 3527
emilmont 1:fdd22bb7aa52 3528
emilmont 1:fdd22bb7aa52 3529 /**
emilmont 1:fdd22bb7aa52 3530 * @brief Processing function for the Q15 FIR interpolator.
emilmont 1:fdd22bb7aa52 3531 * @param[in] *S points to an instance of the Q15 FIR interpolator structure.
emilmont 1:fdd22bb7aa52 3532 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3533 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 3534 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3535 * @return none.
emilmont 1:fdd22bb7aa52 3536 */
emilmont 1:fdd22bb7aa52 3537
emilmont 1:fdd22bb7aa52 3538 void arm_fir_interpolate_q15(
emilmont 1:fdd22bb7aa52 3539 const arm_fir_interpolate_instance_q15 * S,
emilmont 1:fdd22bb7aa52 3540 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 3541 q15_t * pDst,
emilmont 1:fdd22bb7aa52 3542 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3543
emilmont 1:fdd22bb7aa52 3544
emilmont 1:fdd22bb7aa52 3545 /**
emilmont 1:fdd22bb7aa52 3546 * @brief Initialization function for the Q15 FIR interpolator.
emilmont 1:fdd22bb7aa52 3547 * @param[in,out] *S points to an instance of the Q15 FIR interpolator structure.
emilmont 1:fdd22bb7aa52 3548 * @param[in] L upsample factor.
emilmont 1:fdd22bb7aa52 3549 * @param[in] numTaps number of filter coefficients in the filter.
emilmont 1:fdd22bb7aa52 3550 * @param[in] *pCoeffs points to the filter coefficient buffer.
emilmont 1:fdd22bb7aa52 3551 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 3552 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3553 * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_LENGTH_ERROR if
emilmont 1:fdd22bb7aa52 3554 * the filter length <code>numTaps</code> is not a multiple of the interpolation factor <code>L</code>.
emilmont 1:fdd22bb7aa52 3555 */
emilmont 1:fdd22bb7aa52 3556
emilmont 1:fdd22bb7aa52 3557 arm_status arm_fir_interpolate_init_q15(
emilmont 1:fdd22bb7aa52 3558 arm_fir_interpolate_instance_q15 * S,
emilmont 1:fdd22bb7aa52 3559 uint8_t L,
emilmont 1:fdd22bb7aa52 3560 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 3561 q15_t * pCoeffs,
emilmont 1:fdd22bb7aa52 3562 q15_t * pState,
emilmont 1:fdd22bb7aa52 3563 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3564
emilmont 1:fdd22bb7aa52 3565 /**
emilmont 1:fdd22bb7aa52 3566 * @brief Processing function for the Q31 FIR interpolator.
emilmont 1:fdd22bb7aa52 3567 * @param[in] *S points to an instance of the Q15 FIR interpolator structure.
emilmont 1:fdd22bb7aa52 3568 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3569 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 3570 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3571 * @return none.
emilmont 1:fdd22bb7aa52 3572 */
emilmont 1:fdd22bb7aa52 3573
emilmont 1:fdd22bb7aa52 3574 void arm_fir_interpolate_q31(
emilmont 1:fdd22bb7aa52 3575 const arm_fir_interpolate_instance_q31 * S,
emilmont 1:fdd22bb7aa52 3576 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 3577 q31_t * pDst,
emilmont 1:fdd22bb7aa52 3578 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3579
emilmont 1:fdd22bb7aa52 3580 /**
emilmont 1:fdd22bb7aa52 3581 * @brief Initialization function for the Q31 FIR interpolator.
emilmont 1:fdd22bb7aa52 3582 * @param[in,out] *S points to an instance of the Q31 FIR interpolator structure.
emilmont 1:fdd22bb7aa52 3583 * @param[in] L upsample factor.
emilmont 1:fdd22bb7aa52 3584 * @param[in] numTaps number of filter coefficients in the filter.
emilmont 1:fdd22bb7aa52 3585 * @param[in] *pCoeffs points to the filter coefficient buffer.
emilmont 1:fdd22bb7aa52 3586 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 3587 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3588 * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_LENGTH_ERROR if
emilmont 1:fdd22bb7aa52 3589 * the filter length <code>numTaps</code> is not a multiple of the interpolation factor <code>L</code>.
emilmont 1:fdd22bb7aa52 3590 */
emilmont 1:fdd22bb7aa52 3591
emilmont 1:fdd22bb7aa52 3592 arm_status arm_fir_interpolate_init_q31(
emilmont 1:fdd22bb7aa52 3593 arm_fir_interpolate_instance_q31 * S,
emilmont 1:fdd22bb7aa52 3594 uint8_t L,
emilmont 1:fdd22bb7aa52 3595 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 3596 q31_t * pCoeffs,
emilmont 1:fdd22bb7aa52 3597 q31_t * pState,
emilmont 1:fdd22bb7aa52 3598 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3599
emilmont 1:fdd22bb7aa52 3600
emilmont 1:fdd22bb7aa52 3601 /**
emilmont 1:fdd22bb7aa52 3602 * @brief Processing function for the floating-point FIR interpolator.
emilmont 1:fdd22bb7aa52 3603 * @param[in] *S points to an instance of the floating-point FIR interpolator structure.
emilmont 1:fdd22bb7aa52 3604 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3605 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 3606 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3607 * @return none.
emilmont 1:fdd22bb7aa52 3608 */
emilmont 1:fdd22bb7aa52 3609
emilmont 1:fdd22bb7aa52 3610 void arm_fir_interpolate_f32(
emilmont 1:fdd22bb7aa52 3611 const arm_fir_interpolate_instance_f32 * S,
emilmont 1:fdd22bb7aa52 3612 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 3613 float32_t * pDst,
emilmont 1:fdd22bb7aa52 3614 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3615
emilmont 1:fdd22bb7aa52 3616 /**
emilmont 1:fdd22bb7aa52 3617 * @brief Initialization function for the floating-point FIR interpolator.
emilmont 1:fdd22bb7aa52 3618 * @param[in,out] *S points to an instance of the floating-point FIR interpolator structure.
emilmont 1:fdd22bb7aa52 3619 * @param[in] L upsample factor.
emilmont 1:fdd22bb7aa52 3620 * @param[in] numTaps number of filter coefficients in the filter.
emilmont 1:fdd22bb7aa52 3621 * @param[in] *pCoeffs points to the filter coefficient buffer.
emilmont 1:fdd22bb7aa52 3622 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 3623 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 3624 * @return The function returns ARM_MATH_SUCCESS if initialization is successful or ARM_MATH_LENGTH_ERROR if
emilmont 1:fdd22bb7aa52 3625 * the filter length <code>numTaps</code> is not a multiple of the interpolation factor <code>L</code>.
emilmont 1:fdd22bb7aa52 3626 */
emilmont 1:fdd22bb7aa52 3627
emilmont 1:fdd22bb7aa52 3628 arm_status arm_fir_interpolate_init_f32(
emilmont 1:fdd22bb7aa52 3629 arm_fir_interpolate_instance_f32 * S,
emilmont 1:fdd22bb7aa52 3630 uint8_t L,
emilmont 1:fdd22bb7aa52 3631 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 3632 float32_t * pCoeffs,
emilmont 1:fdd22bb7aa52 3633 float32_t * pState,
emilmont 1:fdd22bb7aa52 3634 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3635
emilmont 1:fdd22bb7aa52 3636 /**
emilmont 1:fdd22bb7aa52 3637 * @brief Instance structure for the high precision Q31 Biquad cascade filter.
emilmont 1:fdd22bb7aa52 3638 */
emilmont 1:fdd22bb7aa52 3639
emilmont 1:fdd22bb7aa52 3640 typedef struct
emilmont 1:fdd22bb7aa52 3641 {
emilmont 1:fdd22bb7aa52 3642 uint8_t numStages; /**< number of 2nd order stages in the filter. Overall order is 2*numStages. */
emilmont 1:fdd22bb7aa52 3643 q63_t *pState; /**< points to the array of state coefficients. The array is of length 4*numStages. */
emilmont 1:fdd22bb7aa52 3644 q31_t *pCoeffs; /**< points to the array of coefficients. The array is of length 5*numStages. */
emilmont 1:fdd22bb7aa52 3645 uint8_t postShift; /**< additional shift, in bits, applied to each output sample. */
emilmont 1:fdd22bb7aa52 3646
emilmont 1:fdd22bb7aa52 3647 } arm_biquad_cas_df1_32x64_ins_q31;
emilmont 1:fdd22bb7aa52 3648
emilmont 1:fdd22bb7aa52 3649
emilmont 1:fdd22bb7aa52 3650 /**
emilmont 1:fdd22bb7aa52 3651 * @param[in] *S points to an instance of the high precision Q31 Biquad cascade filter structure.
emilmont 1:fdd22bb7aa52 3652 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3653 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3654 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 3655 * @return none.
emilmont 1:fdd22bb7aa52 3656 */
emilmont 1:fdd22bb7aa52 3657
emilmont 1:fdd22bb7aa52 3658 void arm_biquad_cas_df1_32x64_q31(
emilmont 1:fdd22bb7aa52 3659 const arm_biquad_cas_df1_32x64_ins_q31 * S,
emilmont 1:fdd22bb7aa52 3660 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 3661 q31_t * pDst,
emilmont 1:fdd22bb7aa52 3662 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3663
emilmont 1:fdd22bb7aa52 3664
emilmont 1:fdd22bb7aa52 3665 /**
emilmont 1:fdd22bb7aa52 3666 * @param[in,out] *S points to an instance of the high precision Q31 Biquad cascade filter structure.
emilmont 1:fdd22bb7aa52 3667 * @param[in] numStages number of 2nd order stages in the filter.
emilmont 1:fdd22bb7aa52 3668 * @param[in] *pCoeffs points to the filter coefficients.
emilmont 1:fdd22bb7aa52 3669 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 3670 * @param[in] postShift shift to be applied to the output. Varies according to the coefficients format
emilmont 1:fdd22bb7aa52 3671 * @return none
emilmont 1:fdd22bb7aa52 3672 */
emilmont 1:fdd22bb7aa52 3673
emilmont 1:fdd22bb7aa52 3674 void arm_biquad_cas_df1_32x64_init_q31(
emilmont 1:fdd22bb7aa52 3675 arm_biquad_cas_df1_32x64_ins_q31 * S,
emilmont 1:fdd22bb7aa52 3676 uint8_t numStages,
emilmont 1:fdd22bb7aa52 3677 q31_t * pCoeffs,
emilmont 1:fdd22bb7aa52 3678 q63_t * pState,
emilmont 1:fdd22bb7aa52 3679 uint8_t postShift);
emilmont 1:fdd22bb7aa52 3680
emilmont 1:fdd22bb7aa52 3681
emilmont 1:fdd22bb7aa52 3682
emilmont 1:fdd22bb7aa52 3683 /**
emilmont 1:fdd22bb7aa52 3684 * @brief Instance structure for the floating-point transposed direct form II Biquad cascade filter.
emilmont 1:fdd22bb7aa52 3685 */
emilmont 1:fdd22bb7aa52 3686
emilmont 1:fdd22bb7aa52 3687 typedef struct
emilmont 1:fdd22bb7aa52 3688 {
emilmont 1:fdd22bb7aa52 3689 uint8_t numStages; /**< number of 2nd order stages in the filter. Overall order is 2*numStages. */
emilmont 1:fdd22bb7aa52 3690 float32_t *pState; /**< points to the array of state coefficients. The array is of length 2*numStages. */
emilmont 1:fdd22bb7aa52 3691 float32_t *pCoeffs; /**< points to the array of coefficients. The array is of length 5*numStages. */
emilmont 1:fdd22bb7aa52 3692 } arm_biquad_cascade_df2T_instance_f32;
emilmont 1:fdd22bb7aa52 3693
emilmont 1:fdd22bb7aa52 3694
emilmont 1:fdd22bb7aa52 3695 /**
emilmont 1:fdd22bb7aa52 3696 * @brief Processing function for the floating-point transposed direct form II Biquad cascade filter.
emilmont 1:fdd22bb7aa52 3697 * @param[in] *S points to an instance of the filter data structure.
emilmont 1:fdd22bb7aa52 3698 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3699 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3700 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 3701 * @return none.
emilmont 1:fdd22bb7aa52 3702 */
emilmont 1:fdd22bb7aa52 3703
emilmont 1:fdd22bb7aa52 3704 void arm_biquad_cascade_df2T_f32(
emilmont 1:fdd22bb7aa52 3705 const arm_biquad_cascade_df2T_instance_f32 * S,
emilmont 1:fdd22bb7aa52 3706 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 3707 float32_t * pDst,
emilmont 1:fdd22bb7aa52 3708 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3709
emilmont 1:fdd22bb7aa52 3710
emilmont 1:fdd22bb7aa52 3711 /**
emilmont 1:fdd22bb7aa52 3712 * @brief Initialization function for the floating-point transposed direct form II Biquad cascade filter.
emilmont 1:fdd22bb7aa52 3713 * @param[in,out] *S points to an instance of the filter data structure.
emilmont 1:fdd22bb7aa52 3714 * @param[in] numStages number of 2nd order stages in the filter.
emilmont 1:fdd22bb7aa52 3715 * @param[in] *pCoeffs points to the filter coefficients.
emilmont 1:fdd22bb7aa52 3716 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 3717 * @return none
emilmont 1:fdd22bb7aa52 3718 */
emilmont 1:fdd22bb7aa52 3719
emilmont 1:fdd22bb7aa52 3720 void arm_biquad_cascade_df2T_init_f32(
emilmont 1:fdd22bb7aa52 3721 arm_biquad_cascade_df2T_instance_f32 * S,
emilmont 1:fdd22bb7aa52 3722 uint8_t numStages,
emilmont 1:fdd22bb7aa52 3723 float32_t * pCoeffs,
emilmont 1:fdd22bb7aa52 3724 float32_t * pState);
emilmont 1:fdd22bb7aa52 3725
emilmont 1:fdd22bb7aa52 3726
emilmont 1:fdd22bb7aa52 3727
emilmont 1:fdd22bb7aa52 3728 /**
emilmont 1:fdd22bb7aa52 3729 * @brief Instance structure for the Q15 FIR lattice filter.
emilmont 1:fdd22bb7aa52 3730 */
emilmont 1:fdd22bb7aa52 3731
emilmont 1:fdd22bb7aa52 3732 typedef struct
emilmont 1:fdd22bb7aa52 3733 {
emilmont 1:fdd22bb7aa52 3734 uint16_t numStages; /**< number of filter stages. */
emilmont 1:fdd22bb7aa52 3735 q15_t *pState; /**< points to the state variable array. The array is of length numStages. */
emilmont 1:fdd22bb7aa52 3736 q15_t *pCoeffs; /**< points to the coefficient array. The array is of length numStages. */
emilmont 1:fdd22bb7aa52 3737 } arm_fir_lattice_instance_q15;
emilmont 1:fdd22bb7aa52 3738
emilmont 1:fdd22bb7aa52 3739 /**
emilmont 1:fdd22bb7aa52 3740 * @brief Instance structure for the Q31 FIR lattice filter.
emilmont 1:fdd22bb7aa52 3741 */
emilmont 1:fdd22bb7aa52 3742
emilmont 1:fdd22bb7aa52 3743 typedef struct
emilmont 1:fdd22bb7aa52 3744 {
emilmont 1:fdd22bb7aa52 3745 uint16_t numStages; /**< number of filter stages. */
emilmont 1:fdd22bb7aa52 3746 q31_t *pState; /**< points to the state variable array. The array is of length numStages. */
emilmont 1:fdd22bb7aa52 3747 q31_t *pCoeffs; /**< points to the coefficient array. The array is of length numStages. */
emilmont 1:fdd22bb7aa52 3748 } arm_fir_lattice_instance_q31;
emilmont 1:fdd22bb7aa52 3749
emilmont 1:fdd22bb7aa52 3750 /**
emilmont 1:fdd22bb7aa52 3751 * @brief Instance structure for the floating-point FIR lattice filter.
emilmont 1:fdd22bb7aa52 3752 */
emilmont 1:fdd22bb7aa52 3753
emilmont 1:fdd22bb7aa52 3754 typedef struct
emilmont 1:fdd22bb7aa52 3755 {
emilmont 1:fdd22bb7aa52 3756 uint16_t numStages; /**< number of filter stages. */
emilmont 1:fdd22bb7aa52 3757 float32_t *pState; /**< points to the state variable array. The array is of length numStages. */
emilmont 1:fdd22bb7aa52 3758 float32_t *pCoeffs; /**< points to the coefficient array. The array is of length numStages. */
emilmont 1:fdd22bb7aa52 3759 } arm_fir_lattice_instance_f32;
emilmont 1:fdd22bb7aa52 3760
emilmont 1:fdd22bb7aa52 3761 /**
emilmont 1:fdd22bb7aa52 3762 * @brief Initialization function for the Q15 FIR lattice filter.
emilmont 1:fdd22bb7aa52 3763 * @param[in] *S points to an instance of the Q15 FIR lattice structure.
emilmont 1:fdd22bb7aa52 3764 * @param[in] numStages number of filter stages.
mbed_official 3:7a284390b0ce 3765 * @param[in] *pCoeffs points to the coefficient buffer. The array is of length numStages.
mbed_official 3:7a284390b0ce 3766 * @param[in] *pState points to the state buffer. The array is of length numStages.
emilmont 1:fdd22bb7aa52 3767 * @return none.
emilmont 1:fdd22bb7aa52 3768 */
emilmont 1:fdd22bb7aa52 3769
emilmont 1:fdd22bb7aa52 3770 void arm_fir_lattice_init_q15(
emilmont 1:fdd22bb7aa52 3771 arm_fir_lattice_instance_q15 * S,
emilmont 1:fdd22bb7aa52 3772 uint16_t numStages,
emilmont 1:fdd22bb7aa52 3773 q15_t * pCoeffs,
emilmont 1:fdd22bb7aa52 3774 q15_t * pState);
emilmont 1:fdd22bb7aa52 3775
emilmont 1:fdd22bb7aa52 3776
emilmont 1:fdd22bb7aa52 3777 /**
emilmont 1:fdd22bb7aa52 3778 * @brief Processing function for the Q15 FIR lattice filter.
emilmont 1:fdd22bb7aa52 3779 * @param[in] *S points to an instance of the Q15 FIR lattice structure.
emilmont 1:fdd22bb7aa52 3780 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3781 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 3782 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 3783 * @return none.
emilmont 1:fdd22bb7aa52 3784 */
emilmont 1:fdd22bb7aa52 3785 void arm_fir_lattice_q15(
emilmont 1:fdd22bb7aa52 3786 const arm_fir_lattice_instance_q15 * S,
emilmont 1:fdd22bb7aa52 3787 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 3788 q15_t * pDst,
emilmont 1:fdd22bb7aa52 3789 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3790
emilmont 1:fdd22bb7aa52 3791 /**
emilmont 1:fdd22bb7aa52 3792 * @brief Initialization function for the Q31 FIR lattice filter.
emilmont 1:fdd22bb7aa52 3793 * @param[in] *S points to an instance of the Q31 FIR lattice structure.
emilmont 1:fdd22bb7aa52 3794 * @param[in] numStages number of filter stages.
emilmont 1:fdd22bb7aa52 3795 * @param[in] *pCoeffs points to the coefficient buffer. The array is of length numStages.
emilmont 1:fdd22bb7aa52 3796 * @param[in] *pState points to the state buffer. The array is of length numStages.
emilmont 1:fdd22bb7aa52 3797 * @return none.
emilmont 1:fdd22bb7aa52 3798 */
emilmont 1:fdd22bb7aa52 3799
emilmont 1:fdd22bb7aa52 3800 void arm_fir_lattice_init_q31(
emilmont 1:fdd22bb7aa52 3801 arm_fir_lattice_instance_q31 * S,
emilmont 1:fdd22bb7aa52 3802 uint16_t numStages,
emilmont 1:fdd22bb7aa52 3803 q31_t * pCoeffs,
emilmont 1:fdd22bb7aa52 3804 q31_t * pState);
emilmont 1:fdd22bb7aa52 3805
emilmont 1:fdd22bb7aa52 3806
emilmont 1:fdd22bb7aa52 3807 /**
emilmont 1:fdd22bb7aa52 3808 * @brief Processing function for the Q31 FIR lattice filter.
emilmont 1:fdd22bb7aa52 3809 * @param[in] *S points to an instance of the Q31 FIR lattice structure.
emilmont 1:fdd22bb7aa52 3810 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3811 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3812 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 3813 * @return none.
emilmont 1:fdd22bb7aa52 3814 */
emilmont 1:fdd22bb7aa52 3815
emilmont 1:fdd22bb7aa52 3816 void arm_fir_lattice_q31(
emilmont 1:fdd22bb7aa52 3817 const arm_fir_lattice_instance_q31 * S,
emilmont 1:fdd22bb7aa52 3818 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 3819 q31_t * pDst,
emilmont 1:fdd22bb7aa52 3820 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3821
emilmont 1:fdd22bb7aa52 3822 /**
emilmont 1:fdd22bb7aa52 3823 * @brief Initialization function for the floating-point FIR lattice filter.
emilmont 1:fdd22bb7aa52 3824 * @param[in] *S points to an instance of the floating-point FIR lattice structure.
emilmont 1:fdd22bb7aa52 3825 * @param[in] numStages number of filter stages.
emilmont 1:fdd22bb7aa52 3826 * @param[in] *pCoeffs points to the coefficient buffer. The array is of length numStages.
emilmont 1:fdd22bb7aa52 3827 * @param[in] *pState points to the state buffer. The array is of length numStages.
emilmont 1:fdd22bb7aa52 3828 * @return none.
emilmont 1:fdd22bb7aa52 3829 */
emilmont 1:fdd22bb7aa52 3830
emilmont 1:fdd22bb7aa52 3831 void arm_fir_lattice_init_f32(
emilmont 1:fdd22bb7aa52 3832 arm_fir_lattice_instance_f32 * S,
emilmont 1:fdd22bb7aa52 3833 uint16_t numStages,
emilmont 1:fdd22bb7aa52 3834 float32_t * pCoeffs,
emilmont 1:fdd22bb7aa52 3835 float32_t * pState);
emilmont 1:fdd22bb7aa52 3836
emilmont 1:fdd22bb7aa52 3837 /**
emilmont 1:fdd22bb7aa52 3838 * @brief Processing function for the floating-point FIR lattice filter.
emilmont 1:fdd22bb7aa52 3839 * @param[in] *S points to an instance of the floating-point FIR lattice structure.
emilmont 1:fdd22bb7aa52 3840 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3841 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 3842 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 3843 * @return none.
emilmont 1:fdd22bb7aa52 3844 */
emilmont 1:fdd22bb7aa52 3845
emilmont 1:fdd22bb7aa52 3846 void arm_fir_lattice_f32(
emilmont 1:fdd22bb7aa52 3847 const arm_fir_lattice_instance_f32 * S,
emilmont 1:fdd22bb7aa52 3848 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 3849 float32_t * pDst,
emilmont 1:fdd22bb7aa52 3850 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3851
emilmont 1:fdd22bb7aa52 3852 /**
emilmont 1:fdd22bb7aa52 3853 * @brief Instance structure for the Q15 IIR lattice filter.
emilmont 1:fdd22bb7aa52 3854 */
emilmont 1:fdd22bb7aa52 3855 typedef struct
emilmont 1:fdd22bb7aa52 3856 {
emilmont 1:fdd22bb7aa52 3857 uint16_t numStages; /**< number of stages in the filter. */
emilmont 1:fdd22bb7aa52 3858 q15_t *pState; /**< points to the state variable array. The array is of length numStages+blockSize. */
emilmont 1:fdd22bb7aa52 3859 q15_t *pkCoeffs; /**< points to the reflection coefficient array. The array is of length numStages. */
emilmont 1:fdd22bb7aa52 3860 q15_t *pvCoeffs; /**< points to the ladder coefficient array. The array is of length numStages+1. */
emilmont 1:fdd22bb7aa52 3861 } arm_iir_lattice_instance_q15;
emilmont 1:fdd22bb7aa52 3862
emilmont 1:fdd22bb7aa52 3863 /**
emilmont 1:fdd22bb7aa52 3864 * @brief Instance structure for the Q31 IIR lattice filter.
emilmont 1:fdd22bb7aa52 3865 */
emilmont 1:fdd22bb7aa52 3866 typedef struct
emilmont 1:fdd22bb7aa52 3867 {
emilmont 1:fdd22bb7aa52 3868 uint16_t numStages; /**< number of stages in the filter. */
emilmont 1:fdd22bb7aa52 3869 q31_t *pState; /**< points to the state variable array. The array is of length numStages+blockSize. */
emilmont 1:fdd22bb7aa52 3870 q31_t *pkCoeffs; /**< points to the reflection coefficient array. The array is of length numStages. */
emilmont 1:fdd22bb7aa52 3871 q31_t *pvCoeffs; /**< points to the ladder coefficient array. The array is of length numStages+1. */
emilmont 1:fdd22bb7aa52 3872 } arm_iir_lattice_instance_q31;
emilmont 1:fdd22bb7aa52 3873
emilmont 1:fdd22bb7aa52 3874 /**
emilmont 1:fdd22bb7aa52 3875 * @brief Instance structure for the floating-point IIR lattice filter.
emilmont 1:fdd22bb7aa52 3876 */
emilmont 1:fdd22bb7aa52 3877 typedef struct
emilmont 1:fdd22bb7aa52 3878 {
emilmont 1:fdd22bb7aa52 3879 uint16_t numStages; /**< number of stages in the filter. */
emilmont 1:fdd22bb7aa52 3880 float32_t *pState; /**< points to the state variable array. The array is of length numStages+blockSize. */
emilmont 1:fdd22bb7aa52 3881 float32_t *pkCoeffs; /**< points to the reflection coefficient array. The array is of length numStages. */
emilmont 1:fdd22bb7aa52 3882 float32_t *pvCoeffs; /**< points to the ladder coefficient array. The array is of length numStages+1. */
emilmont 1:fdd22bb7aa52 3883 } arm_iir_lattice_instance_f32;
emilmont 1:fdd22bb7aa52 3884
emilmont 1:fdd22bb7aa52 3885 /**
emilmont 1:fdd22bb7aa52 3886 * @brief Processing function for the floating-point IIR lattice filter.
emilmont 1:fdd22bb7aa52 3887 * @param[in] *S points to an instance of the floating-point IIR lattice structure.
emilmont 1:fdd22bb7aa52 3888 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3889 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 3890 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 3891 * @return none.
emilmont 1:fdd22bb7aa52 3892 */
emilmont 1:fdd22bb7aa52 3893
emilmont 1:fdd22bb7aa52 3894 void arm_iir_lattice_f32(
emilmont 1:fdd22bb7aa52 3895 const arm_iir_lattice_instance_f32 * S,
emilmont 1:fdd22bb7aa52 3896 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 3897 float32_t * pDst,
emilmont 1:fdd22bb7aa52 3898 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3899
emilmont 1:fdd22bb7aa52 3900 /**
emilmont 1:fdd22bb7aa52 3901 * @brief Initialization function for the floating-point IIR lattice filter.
emilmont 1:fdd22bb7aa52 3902 * @param[in] *S points to an instance of the floating-point IIR lattice structure.
emilmont 1:fdd22bb7aa52 3903 * @param[in] numStages number of stages in the filter.
emilmont 1:fdd22bb7aa52 3904 * @param[in] *pkCoeffs points to the reflection coefficient buffer. The array is of length numStages.
emilmont 1:fdd22bb7aa52 3905 * @param[in] *pvCoeffs points to the ladder coefficient buffer. The array is of length numStages+1.
emilmont 1:fdd22bb7aa52 3906 * @param[in] *pState points to the state buffer. The array is of length numStages+blockSize-1.
emilmont 1:fdd22bb7aa52 3907 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 3908 * @return none.
emilmont 1:fdd22bb7aa52 3909 */
emilmont 1:fdd22bb7aa52 3910
emilmont 1:fdd22bb7aa52 3911 void arm_iir_lattice_init_f32(
emilmont 1:fdd22bb7aa52 3912 arm_iir_lattice_instance_f32 * S,
emilmont 1:fdd22bb7aa52 3913 uint16_t numStages,
emilmont 1:fdd22bb7aa52 3914 float32_t * pkCoeffs,
emilmont 1:fdd22bb7aa52 3915 float32_t * pvCoeffs,
emilmont 1:fdd22bb7aa52 3916 float32_t * pState,
emilmont 1:fdd22bb7aa52 3917 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3918
emilmont 1:fdd22bb7aa52 3919
emilmont 1:fdd22bb7aa52 3920 /**
emilmont 1:fdd22bb7aa52 3921 * @brief Processing function for the Q31 IIR lattice filter.
emilmont 1:fdd22bb7aa52 3922 * @param[in] *S points to an instance of the Q31 IIR lattice structure.
emilmont 1:fdd22bb7aa52 3923 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3924 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 3925 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 3926 * @return none.
emilmont 1:fdd22bb7aa52 3927 */
emilmont 1:fdd22bb7aa52 3928
emilmont 1:fdd22bb7aa52 3929 void arm_iir_lattice_q31(
emilmont 1:fdd22bb7aa52 3930 const arm_iir_lattice_instance_q31 * S,
emilmont 1:fdd22bb7aa52 3931 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 3932 q31_t * pDst,
emilmont 1:fdd22bb7aa52 3933 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3934
emilmont 1:fdd22bb7aa52 3935
emilmont 1:fdd22bb7aa52 3936 /**
emilmont 1:fdd22bb7aa52 3937 * @brief Initialization function for the Q31 IIR lattice filter.
emilmont 1:fdd22bb7aa52 3938 * @param[in] *S points to an instance of the Q31 IIR lattice structure.
emilmont 1:fdd22bb7aa52 3939 * @param[in] numStages number of stages in the filter.
emilmont 1:fdd22bb7aa52 3940 * @param[in] *pkCoeffs points to the reflection coefficient buffer. The array is of length numStages.
emilmont 1:fdd22bb7aa52 3941 * @param[in] *pvCoeffs points to the ladder coefficient buffer. The array is of length numStages+1.
emilmont 1:fdd22bb7aa52 3942 * @param[in] *pState points to the state buffer. The array is of length numStages+blockSize.
emilmont 1:fdd22bb7aa52 3943 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 3944 * @return none.
emilmont 1:fdd22bb7aa52 3945 */
emilmont 1:fdd22bb7aa52 3946
emilmont 1:fdd22bb7aa52 3947 void arm_iir_lattice_init_q31(
emilmont 1:fdd22bb7aa52 3948 arm_iir_lattice_instance_q31 * S,
emilmont 1:fdd22bb7aa52 3949 uint16_t numStages,
emilmont 1:fdd22bb7aa52 3950 q31_t * pkCoeffs,
emilmont 1:fdd22bb7aa52 3951 q31_t * pvCoeffs,
emilmont 1:fdd22bb7aa52 3952 q31_t * pState,
emilmont 1:fdd22bb7aa52 3953 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3954
emilmont 1:fdd22bb7aa52 3955
emilmont 1:fdd22bb7aa52 3956 /**
emilmont 1:fdd22bb7aa52 3957 * @brief Processing function for the Q15 IIR lattice filter.
emilmont 1:fdd22bb7aa52 3958 * @param[in] *S points to an instance of the Q15 IIR lattice structure.
emilmont 1:fdd22bb7aa52 3959 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 3960 * @param[out] *pDst points to the block of output data.
emilmont 1:fdd22bb7aa52 3961 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 3962 * @return none.
emilmont 1:fdd22bb7aa52 3963 */
emilmont 1:fdd22bb7aa52 3964
emilmont 1:fdd22bb7aa52 3965 void arm_iir_lattice_q15(
emilmont 1:fdd22bb7aa52 3966 const arm_iir_lattice_instance_q15 * S,
emilmont 1:fdd22bb7aa52 3967 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 3968 q15_t * pDst,
emilmont 1:fdd22bb7aa52 3969 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3970
emilmont 1:fdd22bb7aa52 3971
emilmont 1:fdd22bb7aa52 3972 /**
emilmont 1:fdd22bb7aa52 3973 * @brief Initialization function for the Q15 IIR lattice filter.
emilmont 1:fdd22bb7aa52 3974 * @param[in] *S points to an instance of the fixed-point Q15 IIR lattice structure.
emilmont 1:fdd22bb7aa52 3975 * @param[in] numStages number of stages in the filter.
emilmont 1:fdd22bb7aa52 3976 * @param[in] *pkCoeffs points to reflection coefficient buffer. The array is of length numStages.
emilmont 1:fdd22bb7aa52 3977 * @param[in] *pvCoeffs points to ladder coefficient buffer. The array is of length numStages+1.
emilmont 1:fdd22bb7aa52 3978 * @param[in] *pState points to state buffer. The array is of length numStages+blockSize.
emilmont 1:fdd22bb7aa52 3979 * @param[in] blockSize number of samples to process per call.
emilmont 1:fdd22bb7aa52 3980 * @return none.
emilmont 1:fdd22bb7aa52 3981 */
emilmont 1:fdd22bb7aa52 3982
emilmont 1:fdd22bb7aa52 3983 void arm_iir_lattice_init_q15(
emilmont 1:fdd22bb7aa52 3984 arm_iir_lattice_instance_q15 * S,
emilmont 1:fdd22bb7aa52 3985 uint16_t numStages,
emilmont 1:fdd22bb7aa52 3986 q15_t * pkCoeffs,
emilmont 1:fdd22bb7aa52 3987 q15_t * pvCoeffs,
emilmont 1:fdd22bb7aa52 3988 q15_t * pState,
emilmont 1:fdd22bb7aa52 3989 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 3990
emilmont 1:fdd22bb7aa52 3991 /**
emilmont 1:fdd22bb7aa52 3992 * @brief Instance structure for the floating-point LMS filter.
emilmont 1:fdd22bb7aa52 3993 */
emilmont 1:fdd22bb7aa52 3994
emilmont 1:fdd22bb7aa52 3995 typedef struct
emilmont 1:fdd22bb7aa52 3996 {
emilmont 1:fdd22bb7aa52 3997 uint16_t numTaps; /**< number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 3998 float32_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 3999 float32_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */
emilmont 1:fdd22bb7aa52 4000 float32_t mu; /**< step size that controls filter coefficient updates. */
emilmont 1:fdd22bb7aa52 4001 } arm_lms_instance_f32;
emilmont 1:fdd22bb7aa52 4002
emilmont 1:fdd22bb7aa52 4003 /**
emilmont 1:fdd22bb7aa52 4004 * @brief Processing function for floating-point LMS filter.
emilmont 1:fdd22bb7aa52 4005 * @param[in] *S points to an instance of the floating-point LMS filter structure.
emilmont 1:fdd22bb7aa52 4006 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 4007 * @param[in] *pRef points to the block of reference data.
emilmont 1:fdd22bb7aa52 4008 * @param[out] *pOut points to the block of output data.
emilmont 1:fdd22bb7aa52 4009 * @param[out] *pErr points to the block of error data.
emilmont 1:fdd22bb7aa52 4010 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 4011 * @return none.
emilmont 1:fdd22bb7aa52 4012 */
emilmont 1:fdd22bb7aa52 4013
emilmont 1:fdd22bb7aa52 4014 void arm_lms_f32(
emilmont 1:fdd22bb7aa52 4015 const arm_lms_instance_f32 * S,
emilmont 1:fdd22bb7aa52 4016 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 4017 float32_t * pRef,
emilmont 1:fdd22bb7aa52 4018 float32_t * pOut,
emilmont 1:fdd22bb7aa52 4019 float32_t * pErr,
emilmont 1:fdd22bb7aa52 4020 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4021
emilmont 1:fdd22bb7aa52 4022 /**
emilmont 1:fdd22bb7aa52 4023 * @brief Initialization function for floating-point LMS filter.
emilmont 1:fdd22bb7aa52 4024 * @param[in] *S points to an instance of the floating-point LMS filter structure.
emilmont 1:fdd22bb7aa52 4025 * @param[in] numTaps number of filter coefficients.
emilmont 1:fdd22bb7aa52 4026 * @param[in] *pCoeffs points to the coefficient buffer.
emilmont 1:fdd22bb7aa52 4027 * @param[in] *pState points to state buffer.
emilmont 1:fdd22bb7aa52 4028 * @param[in] mu step size that controls filter coefficient updates.
emilmont 1:fdd22bb7aa52 4029 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 4030 * @return none.
emilmont 1:fdd22bb7aa52 4031 */
emilmont 1:fdd22bb7aa52 4032
emilmont 1:fdd22bb7aa52 4033 void arm_lms_init_f32(
emilmont 1:fdd22bb7aa52 4034 arm_lms_instance_f32 * S,
emilmont 1:fdd22bb7aa52 4035 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 4036 float32_t * pCoeffs,
emilmont 1:fdd22bb7aa52 4037 float32_t * pState,
emilmont 1:fdd22bb7aa52 4038 float32_t mu,
emilmont 1:fdd22bb7aa52 4039 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4040
emilmont 1:fdd22bb7aa52 4041 /**
emilmont 1:fdd22bb7aa52 4042 * @brief Instance structure for the Q15 LMS filter.
emilmont 1:fdd22bb7aa52 4043 */
emilmont 1:fdd22bb7aa52 4044
emilmont 1:fdd22bb7aa52 4045 typedef struct
emilmont 1:fdd22bb7aa52 4046 {
emilmont 1:fdd22bb7aa52 4047 uint16_t numTaps; /**< number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 4048 q15_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 4049 q15_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */
emilmont 1:fdd22bb7aa52 4050 q15_t mu; /**< step size that controls filter coefficient updates. */
emilmont 1:fdd22bb7aa52 4051 uint32_t postShift; /**< bit shift applied to coefficients. */
emilmont 1:fdd22bb7aa52 4052 } arm_lms_instance_q15;
emilmont 1:fdd22bb7aa52 4053
emilmont 1:fdd22bb7aa52 4054
emilmont 1:fdd22bb7aa52 4055 /**
emilmont 1:fdd22bb7aa52 4056 * @brief Initialization function for the Q15 LMS filter.
emilmont 1:fdd22bb7aa52 4057 * @param[in] *S points to an instance of the Q15 LMS filter structure.
emilmont 1:fdd22bb7aa52 4058 * @param[in] numTaps number of filter coefficients.
emilmont 1:fdd22bb7aa52 4059 * @param[in] *pCoeffs points to the coefficient buffer.
emilmont 1:fdd22bb7aa52 4060 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 4061 * @param[in] mu step size that controls filter coefficient updates.
emilmont 1:fdd22bb7aa52 4062 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 4063 * @param[in] postShift bit shift applied to coefficients.
emilmont 1:fdd22bb7aa52 4064 * @return none.
emilmont 1:fdd22bb7aa52 4065 */
emilmont 1:fdd22bb7aa52 4066
emilmont 1:fdd22bb7aa52 4067 void arm_lms_init_q15(
emilmont 1:fdd22bb7aa52 4068 arm_lms_instance_q15 * S,
emilmont 1:fdd22bb7aa52 4069 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 4070 q15_t * pCoeffs,
emilmont 1:fdd22bb7aa52 4071 q15_t * pState,
emilmont 1:fdd22bb7aa52 4072 q15_t mu,
emilmont 1:fdd22bb7aa52 4073 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 4074 uint32_t postShift);
emilmont 1:fdd22bb7aa52 4075
emilmont 1:fdd22bb7aa52 4076 /**
emilmont 1:fdd22bb7aa52 4077 * @brief Processing function for Q15 LMS filter.
emilmont 1:fdd22bb7aa52 4078 * @param[in] *S points to an instance of the Q15 LMS filter structure.
emilmont 1:fdd22bb7aa52 4079 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 4080 * @param[in] *pRef points to the block of reference data.
emilmont 1:fdd22bb7aa52 4081 * @param[out] *pOut points to the block of output data.
emilmont 1:fdd22bb7aa52 4082 * @param[out] *pErr points to the block of error data.
emilmont 1:fdd22bb7aa52 4083 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 4084 * @return none.
emilmont 1:fdd22bb7aa52 4085 */
emilmont 1:fdd22bb7aa52 4086
emilmont 1:fdd22bb7aa52 4087 void arm_lms_q15(
emilmont 1:fdd22bb7aa52 4088 const arm_lms_instance_q15 * S,
emilmont 1:fdd22bb7aa52 4089 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 4090 q15_t * pRef,
emilmont 1:fdd22bb7aa52 4091 q15_t * pOut,
emilmont 1:fdd22bb7aa52 4092 q15_t * pErr,
emilmont 1:fdd22bb7aa52 4093 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4094
emilmont 1:fdd22bb7aa52 4095
emilmont 1:fdd22bb7aa52 4096 /**
emilmont 1:fdd22bb7aa52 4097 * @brief Instance structure for the Q31 LMS filter.
emilmont 1:fdd22bb7aa52 4098 */
emilmont 1:fdd22bb7aa52 4099
emilmont 1:fdd22bb7aa52 4100 typedef struct
emilmont 1:fdd22bb7aa52 4101 {
emilmont 1:fdd22bb7aa52 4102 uint16_t numTaps; /**< number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 4103 q31_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 4104 q31_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */
emilmont 1:fdd22bb7aa52 4105 q31_t mu; /**< step size that controls filter coefficient updates. */
emilmont 1:fdd22bb7aa52 4106 uint32_t postShift; /**< bit shift applied to coefficients. */
emilmont 1:fdd22bb7aa52 4107
emilmont 1:fdd22bb7aa52 4108 } arm_lms_instance_q31;
emilmont 1:fdd22bb7aa52 4109
emilmont 1:fdd22bb7aa52 4110 /**
emilmont 1:fdd22bb7aa52 4111 * @brief Processing function for Q31 LMS filter.
emilmont 1:fdd22bb7aa52 4112 * @param[in] *S points to an instance of the Q15 LMS filter structure.
emilmont 1:fdd22bb7aa52 4113 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 4114 * @param[in] *pRef points to the block of reference data.
emilmont 1:fdd22bb7aa52 4115 * @param[out] *pOut points to the block of output data.
emilmont 1:fdd22bb7aa52 4116 * @param[out] *pErr points to the block of error data.
emilmont 1:fdd22bb7aa52 4117 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 4118 * @return none.
emilmont 1:fdd22bb7aa52 4119 */
emilmont 1:fdd22bb7aa52 4120
emilmont 1:fdd22bb7aa52 4121 void arm_lms_q31(
emilmont 1:fdd22bb7aa52 4122 const arm_lms_instance_q31 * S,
emilmont 1:fdd22bb7aa52 4123 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 4124 q31_t * pRef,
emilmont 1:fdd22bb7aa52 4125 q31_t * pOut,
emilmont 1:fdd22bb7aa52 4126 q31_t * pErr,
emilmont 1:fdd22bb7aa52 4127 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4128
emilmont 1:fdd22bb7aa52 4129 /**
emilmont 1:fdd22bb7aa52 4130 * @brief Initialization function for Q31 LMS filter.
emilmont 1:fdd22bb7aa52 4131 * @param[in] *S points to an instance of the Q31 LMS filter structure.
emilmont 1:fdd22bb7aa52 4132 * @param[in] numTaps number of filter coefficients.
emilmont 1:fdd22bb7aa52 4133 * @param[in] *pCoeffs points to coefficient buffer.
emilmont 1:fdd22bb7aa52 4134 * @param[in] *pState points to state buffer.
emilmont 1:fdd22bb7aa52 4135 * @param[in] mu step size that controls filter coefficient updates.
emilmont 1:fdd22bb7aa52 4136 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 4137 * @param[in] postShift bit shift applied to coefficients.
emilmont 1:fdd22bb7aa52 4138 * @return none.
emilmont 1:fdd22bb7aa52 4139 */
emilmont 1:fdd22bb7aa52 4140
emilmont 1:fdd22bb7aa52 4141 void arm_lms_init_q31(
emilmont 1:fdd22bb7aa52 4142 arm_lms_instance_q31 * S,
emilmont 1:fdd22bb7aa52 4143 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 4144 q31_t * pCoeffs,
emilmont 1:fdd22bb7aa52 4145 q31_t * pState,
emilmont 1:fdd22bb7aa52 4146 q31_t mu,
emilmont 1:fdd22bb7aa52 4147 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 4148 uint32_t postShift);
emilmont 1:fdd22bb7aa52 4149
emilmont 1:fdd22bb7aa52 4150 /**
emilmont 1:fdd22bb7aa52 4151 * @brief Instance structure for the floating-point normalized LMS filter.
emilmont 1:fdd22bb7aa52 4152 */
emilmont 1:fdd22bb7aa52 4153
emilmont 1:fdd22bb7aa52 4154 typedef struct
emilmont 1:fdd22bb7aa52 4155 {
emilmont 1:fdd22bb7aa52 4156 uint16_t numTaps; /**< number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 4157 float32_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 4158 float32_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */
emilmont 1:fdd22bb7aa52 4159 float32_t mu; /**< step size that control filter coefficient updates. */
emilmont 1:fdd22bb7aa52 4160 float32_t energy; /**< saves previous frame energy. */
emilmont 1:fdd22bb7aa52 4161 float32_t x0; /**< saves previous input sample. */
emilmont 1:fdd22bb7aa52 4162 } arm_lms_norm_instance_f32;
emilmont 1:fdd22bb7aa52 4163
emilmont 1:fdd22bb7aa52 4164 /**
emilmont 1:fdd22bb7aa52 4165 * @brief Processing function for floating-point normalized LMS filter.
emilmont 1:fdd22bb7aa52 4166 * @param[in] *S points to an instance of the floating-point normalized LMS filter structure.
emilmont 1:fdd22bb7aa52 4167 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 4168 * @param[in] *pRef points to the block of reference data.
emilmont 1:fdd22bb7aa52 4169 * @param[out] *pOut points to the block of output data.
emilmont 1:fdd22bb7aa52 4170 * @param[out] *pErr points to the block of error data.
emilmont 1:fdd22bb7aa52 4171 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 4172 * @return none.
emilmont 1:fdd22bb7aa52 4173 */
emilmont 1:fdd22bb7aa52 4174
emilmont 1:fdd22bb7aa52 4175 void arm_lms_norm_f32(
emilmont 1:fdd22bb7aa52 4176 arm_lms_norm_instance_f32 * S,
emilmont 1:fdd22bb7aa52 4177 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 4178 float32_t * pRef,
emilmont 1:fdd22bb7aa52 4179 float32_t * pOut,
emilmont 1:fdd22bb7aa52 4180 float32_t * pErr,
emilmont 1:fdd22bb7aa52 4181 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4182
emilmont 1:fdd22bb7aa52 4183 /**
emilmont 1:fdd22bb7aa52 4184 * @brief Initialization function for floating-point normalized LMS filter.
emilmont 1:fdd22bb7aa52 4185 * @param[in] *S points to an instance of the floating-point LMS filter structure.
emilmont 1:fdd22bb7aa52 4186 * @param[in] numTaps number of filter coefficients.
emilmont 1:fdd22bb7aa52 4187 * @param[in] *pCoeffs points to coefficient buffer.
emilmont 1:fdd22bb7aa52 4188 * @param[in] *pState points to state buffer.
emilmont 1:fdd22bb7aa52 4189 * @param[in] mu step size that controls filter coefficient updates.
emilmont 1:fdd22bb7aa52 4190 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 4191 * @return none.
emilmont 1:fdd22bb7aa52 4192 */
emilmont 1:fdd22bb7aa52 4193
emilmont 1:fdd22bb7aa52 4194 void arm_lms_norm_init_f32(
emilmont 1:fdd22bb7aa52 4195 arm_lms_norm_instance_f32 * S,
emilmont 1:fdd22bb7aa52 4196 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 4197 float32_t * pCoeffs,
emilmont 1:fdd22bb7aa52 4198 float32_t * pState,
emilmont 1:fdd22bb7aa52 4199 float32_t mu,
emilmont 1:fdd22bb7aa52 4200 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4201
emilmont 1:fdd22bb7aa52 4202
emilmont 1:fdd22bb7aa52 4203 /**
emilmont 1:fdd22bb7aa52 4204 * @brief Instance structure for the Q31 normalized LMS filter.
emilmont 1:fdd22bb7aa52 4205 */
emilmont 1:fdd22bb7aa52 4206 typedef struct
emilmont 1:fdd22bb7aa52 4207 {
emilmont 1:fdd22bb7aa52 4208 uint16_t numTaps; /**< number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 4209 q31_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 4210 q31_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */
emilmont 1:fdd22bb7aa52 4211 q31_t mu; /**< step size that controls filter coefficient updates. */
emilmont 1:fdd22bb7aa52 4212 uint8_t postShift; /**< bit shift applied to coefficients. */
emilmont 1:fdd22bb7aa52 4213 q31_t *recipTable; /**< points to the reciprocal initial value table. */
emilmont 1:fdd22bb7aa52 4214 q31_t energy; /**< saves previous frame energy. */
emilmont 1:fdd22bb7aa52 4215 q31_t x0; /**< saves previous input sample. */
emilmont 1:fdd22bb7aa52 4216 } arm_lms_norm_instance_q31;
emilmont 1:fdd22bb7aa52 4217
emilmont 1:fdd22bb7aa52 4218 /**
emilmont 1:fdd22bb7aa52 4219 * @brief Processing function for Q31 normalized LMS filter.
emilmont 1:fdd22bb7aa52 4220 * @param[in] *S points to an instance of the Q31 normalized LMS filter structure.
emilmont 1:fdd22bb7aa52 4221 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 4222 * @param[in] *pRef points to the block of reference data.
emilmont 1:fdd22bb7aa52 4223 * @param[out] *pOut points to the block of output data.
emilmont 1:fdd22bb7aa52 4224 * @param[out] *pErr points to the block of error data.
emilmont 1:fdd22bb7aa52 4225 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 4226 * @return none.
emilmont 1:fdd22bb7aa52 4227 */
emilmont 1:fdd22bb7aa52 4228
emilmont 1:fdd22bb7aa52 4229 void arm_lms_norm_q31(
emilmont 1:fdd22bb7aa52 4230 arm_lms_norm_instance_q31 * S,
emilmont 1:fdd22bb7aa52 4231 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 4232 q31_t * pRef,
emilmont 1:fdd22bb7aa52 4233 q31_t * pOut,
emilmont 1:fdd22bb7aa52 4234 q31_t * pErr,
emilmont 1:fdd22bb7aa52 4235 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4236
emilmont 1:fdd22bb7aa52 4237 /**
emilmont 1:fdd22bb7aa52 4238 * @brief Initialization function for Q31 normalized LMS filter.
emilmont 1:fdd22bb7aa52 4239 * @param[in] *S points to an instance of the Q31 normalized LMS filter structure.
emilmont 1:fdd22bb7aa52 4240 * @param[in] numTaps number of filter coefficients.
emilmont 1:fdd22bb7aa52 4241 * @param[in] *pCoeffs points to coefficient buffer.
emilmont 1:fdd22bb7aa52 4242 * @param[in] *pState points to state buffer.
emilmont 1:fdd22bb7aa52 4243 * @param[in] mu step size that controls filter coefficient updates.
emilmont 1:fdd22bb7aa52 4244 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 4245 * @param[in] postShift bit shift applied to coefficients.
emilmont 1:fdd22bb7aa52 4246 * @return none.
emilmont 1:fdd22bb7aa52 4247 */
emilmont 1:fdd22bb7aa52 4248
emilmont 1:fdd22bb7aa52 4249 void arm_lms_norm_init_q31(
emilmont 1:fdd22bb7aa52 4250 arm_lms_norm_instance_q31 * S,
emilmont 1:fdd22bb7aa52 4251 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 4252 q31_t * pCoeffs,
emilmont 1:fdd22bb7aa52 4253 q31_t * pState,
emilmont 1:fdd22bb7aa52 4254 q31_t mu,
emilmont 1:fdd22bb7aa52 4255 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 4256 uint8_t postShift);
emilmont 1:fdd22bb7aa52 4257
emilmont 1:fdd22bb7aa52 4258 /**
emilmont 1:fdd22bb7aa52 4259 * @brief Instance structure for the Q15 normalized LMS filter.
emilmont 1:fdd22bb7aa52 4260 */
emilmont 1:fdd22bb7aa52 4261
emilmont 1:fdd22bb7aa52 4262 typedef struct
emilmont 1:fdd22bb7aa52 4263 {
emilmont 1:fdd22bb7aa52 4264 uint16_t numTaps; /**< Number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 4265 q15_t *pState; /**< points to the state variable array. The array is of length numTaps+blockSize-1. */
emilmont 1:fdd22bb7aa52 4266 q15_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps. */
emilmont 1:fdd22bb7aa52 4267 q15_t mu; /**< step size that controls filter coefficient updates. */
emilmont 1:fdd22bb7aa52 4268 uint8_t postShift; /**< bit shift applied to coefficients. */
emilmont 1:fdd22bb7aa52 4269 q15_t *recipTable; /**< Points to the reciprocal initial value table. */
emilmont 1:fdd22bb7aa52 4270 q15_t energy; /**< saves previous frame energy. */
emilmont 1:fdd22bb7aa52 4271 q15_t x0; /**< saves previous input sample. */
emilmont 1:fdd22bb7aa52 4272 } arm_lms_norm_instance_q15;
emilmont 1:fdd22bb7aa52 4273
emilmont 1:fdd22bb7aa52 4274 /**
emilmont 1:fdd22bb7aa52 4275 * @brief Processing function for Q15 normalized LMS filter.
emilmont 1:fdd22bb7aa52 4276 * @param[in] *S points to an instance of the Q15 normalized LMS filter structure.
emilmont 1:fdd22bb7aa52 4277 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 4278 * @param[in] *pRef points to the block of reference data.
emilmont 1:fdd22bb7aa52 4279 * @param[out] *pOut points to the block of output data.
emilmont 1:fdd22bb7aa52 4280 * @param[out] *pErr points to the block of error data.
emilmont 1:fdd22bb7aa52 4281 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 4282 * @return none.
emilmont 1:fdd22bb7aa52 4283 */
emilmont 1:fdd22bb7aa52 4284
emilmont 1:fdd22bb7aa52 4285 void arm_lms_norm_q15(
emilmont 1:fdd22bb7aa52 4286 arm_lms_norm_instance_q15 * S,
emilmont 1:fdd22bb7aa52 4287 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 4288 q15_t * pRef,
emilmont 1:fdd22bb7aa52 4289 q15_t * pOut,
emilmont 1:fdd22bb7aa52 4290 q15_t * pErr,
emilmont 1:fdd22bb7aa52 4291 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4292
emilmont 1:fdd22bb7aa52 4293
emilmont 1:fdd22bb7aa52 4294 /**
emilmont 1:fdd22bb7aa52 4295 * @brief Initialization function for Q15 normalized LMS filter.
emilmont 1:fdd22bb7aa52 4296 * @param[in] *S points to an instance of the Q15 normalized LMS filter structure.
emilmont 1:fdd22bb7aa52 4297 * @param[in] numTaps number of filter coefficients.
emilmont 1:fdd22bb7aa52 4298 * @param[in] *pCoeffs points to coefficient buffer.
emilmont 1:fdd22bb7aa52 4299 * @param[in] *pState points to state buffer.
emilmont 1:fdd22bb7aa52 4300 * @param[in] mu step size that controls filter coefficient updates.
emilmont 1:fdd22bb7aa52 4301 * @param[in] blockSize number of samples to process.
emilmont 1:fdd22bb7aa52 4302 * @param[in] postShift bit shift applied to coefficients.
emilmont 1:fdd22bb7aa52 4303 * @return none.
emilmont 1:fdd22bb7aa52 4304 */
emilmont 1:fdd22bb7aa52 4305
emilmont 1:fdd22bb7aa52 4306 void arm_lms_norm_init_q15(
emilmont 1:fdd22bb7aa52 4307 arm_lms_norm_instance_q15 * S,
emilmont 1:fdd22bb7aa52 4308 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 4309 q15_t * pCoeffs,
emilmont 1:fdd22bb7aa52 4310 q15_t * pState,
emilmont 1:fdd22bb7aa52 4311 q15_t mu,
emilmont 1:fdd22bb7aa52 4312 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 4313 uint8_t postShift);
emilmont 1:fdd22bb7aa52 4314
emilmont 1:fdd22bb7aa52 4315 /**
emilmont 1:fdd22bb7aa52 4316 * @brief Correlation of floating-point sequences.
emilmont 1:fdd22bb7aa52 4317 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 4318 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 4319 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 4320 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 4321 * @param[out] *pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
emilmont 1:fdd22bb7aa52 4322 * @return none.
emilmont 1:fdd22bb7aa52 4323 */
emilmont 1:fdd22bb7aa52 4324
emilmont 1:fdd22bb7aa52 4325 void arm_correlate_f32(
emilmont 1:fdd22bb7aa52 4326 float32_t * pSrcA,
emilmont 1:fdd22bb7aa52 4327 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 4328 float32_t * pSrcB,
emilmont 1:fdd22bb7aa52 4329 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 4330 float32_t * pDst);
emilmont 1:fdd22bb7aa52 4331
emilmont 1:fdd22bb7aa52 4332
mbed_official 3:7a284390b0ce 4333 /**
mbed_official 3:7a284390b0ce 4334 * @brief Correlation of Q15 sequences
mbed_official 3:7a284390b0ce 4335 * @param[in] *pSrcA points to the first input sequence.
mbed_official 3:7a284390b0ce 4336 * @param[in] srcALen length of the first input sequence.
mbed_official 3:7a284390b0ce 4337 * @param[in] *pSrcB points to the second input sequence.
mbed_official 3:7a284390b0ce 4338 * @param[in] srcBLen length of the second input sequence.
mbed_official 3:7a284390b0ce 4339 * @param[out] *pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
mbed_official 3:7a284390b0ce 4340 * @param[in] *pScratch points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
mbed_official 3:7a284390b0ce 4341 * @return none.
emilmont 1:fdd22bb7aa52 4342 */
emilmont 1:fdd22bb7aa52 4343 void arm_correlate_opt_q15(
emilmont 1:fdd22bb7aa52 4344 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 4345 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 4346 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 4347 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 4348 q15_t * pDst,
emilmont 1:fdd22bb7aa52 4349 q15_t * pScratch);
emilmont 1:fdd22bb7aa52 4350
emilmont 1:fdd22bb7aa52 4351
emilmont 1:fdd22bb7aa52 4352 /**
emilmont 1:fdd22bb7aa52 4353 * @brief Correlation of Q15 sequences.
emilmont 1:fdd22bb7aa52 4354 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 4355 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 4356 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 4357 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 4358 * @param[out] *pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
emilmont 1:fdd22bb7aa52 4359 * @return none.
emilmont 1:fdd22bb7aa52 4360 */
emilmont 1:fdd22bb7aa52 4361
emilmont 1:fdd22bb7aa52 4362 void arm_correlate_q15(
emilmont 1:fdd22bb7aa52 4363 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 4364 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 4365 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 4366 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 4367 q15_t * pDst);
emilmont 1:fdd22bb7aa52 4368
emilmont 1:fdd22bb7aa52 4369 /**
emilmont 1:fdd22bb7aa52 4370 * @brief Correlation of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4.
emilmont 1:fdd22bb7aa52 4371 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 4372 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 4373 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 4374 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 4375 * @param[out] *pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
emilmont 1:fdd22bb7aa52 4376 * @return none.
emilmont 1:fdd22bb7aa52 4377 */
emilmont 1:fdd22bb7aa52 4378
emilmont 1:fdd22bb7aa52 4379 void arm_correlate_fast_q15(
emilmont 2:da51fb522205 4380 q15_t * pSrcA,
emilmont 2:da51fb522205 4381 uint32_t srcALen,
emilmont 2:da51fb522205 4382 q15_t * pSrcB,
emilmont 2:da51fb522205 4383 uint32_t srcBLen,
emilmont 2:da51fb522205 4384 q15_t * pDst);
emilmont 1:fdd22bb7aa52 4385
emilmont 1:fdd22bb7aa52 4386
emilmont 1:fdd22bb7aa52 4387
emilmont 1:fdd22bb7aa52 4388 /**
emilmont 1:fdd22bb7aa52 4389 * @brief Correlation of Q15 sequences (fast version) for Cortex-M3 and Cortex-M4.
emilmont 1:fdd22bb7aa52 4390 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 4391 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 4392 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 4393 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 4394 * @param[out] *pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
mbed_official 3:7a284390b0ce 4395 * @param[in] *pScratch points to scratch buffer of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
emilmont 1:fdd22bb7aa52 4396 * @return none.
emilmont 1:fdd22bb7aa52 4397 */
emilmont 1:fdd22bb7aa52 4398
emilmont 1:fdd22bb7aa52 4399 void arm_correlate_fast_opt_q15(
emilmont 1:fdd22bb7aa52 4400 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 4401 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 4402 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 4403 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 4404 q15_t * pDst,
emilmont 1:fdd22bb7aa52 4405 q15_t * pScratch);
emilmont 1:fdd22bb7aa52 4406
emilmont 1:fdd22bb7aa52 4407 /**
emilmont 1:fdd22bb7aa52 4408 * @brief Correlation of Q31 sequences.
emilmont 1:fdd22bb7aa52 4409 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 4410 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 4411 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 4412 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 4413 * @param[out] *pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
emilmont 1:fdd22bb7aa52 4414 * @return none.
emilmont 1:fdd22bb7aa52 4415 */
emilmont 1:fdd22bb7aa52 4416
emilmont 1:fdd22bb7aa52 4417 void arm_correlate_q31(
emilmont 1:fdd22bb7aa52 4418 q31_t * pSrcA,
emilmont 1:fdd22bb7aa52 4419 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 4420 q31_t * pSrcB,
emilmont 1:fdd22bb7aa52 4421 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 4422 q31_t * pDst);
emilmont 1:fdd22bb7aa52 4423
emilmont 1:fdd22bb7aa52 4424 /**
emilmont 1:fdd22bb7aa52 4425 * @brief Correlation of Q31 sequences (fast version) for Cortex-M3 and Cortex-M4
emilmont 1:fdd22bb7aa52 4426 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 4427 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 4428 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 4429 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 4430 * @param[out] *pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
emilmont 1:fdd22bb7aa52 4431 * @return none.
emilmont 1:fdd22bb7aa52 4432 */
emilmont 1:fdd22bb7aa52 4433
emilmont 1:fdd22bb7aa52 4434 void arm_correlate_fast_q31(
emilmont 1:fdd22bb7aa52 4435 q31_t * pSrcA,
emilmont 1:fdd22bb7aa52 4436 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 4437 q31_t * pSrcB,
emilmont 1:fdd22bb7aa52 4438 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 4439 q31_t * pDst);
emilmont 1:fdd22bb7aa52 4440
emilmont 1:fdd22bb7aa52 4441
emilmont 1:fdd22bb7aa52 4442
mbed_official 3:7a284390b0ce 4443 /**
mbed_official 3:7a284390b0ce 4444 * @brief Correlation of Q7 sequences.
mbed_official 3:7a284390b0ce 4445 * @param[in] *pSrcA points to the first input sequence.
mbed_official 3:7a284390b0ce 4446 * @param[in] srcALen length of the first input sequence.
mbed_official 3:7a284390b0ce 4447 * @param[in] *pSrcB points to the second input sequence.
mbed_official 3:7a284390b0ce 4448 * @param[in] srcBLen length of the second input sequence.
mbed_official 3:7a284390b0ce 4449 * @param[out] *pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
mbed_official 3:7a284390b0ce 4450 * @param[in] *pScratch1 points to scratch buffer(of type q15_t) of size max(srcALen, srcBLen) + 2*min(srcALen, srcBLen) - 2.
mbed_official 3:7a284390b0ce 4451 * @param[in] *pScratch2 points to scratch buffer (of type q15_t) of size min(srcALen, srcBLen).
mbed_official 3:7a284390b0ce 4452 * @return none.
emilmont 1:fdd22bb7aa52 4453 */
emilmont 1:fdd22bb7aa52 4454
emilmont 1:fdd22bb7aa52 4455 void arm_correlate_opt_q7(
emilmont 1:fdd22bb7aa52 4456 q7_t * pSrcA,
emilmont 1:fdd22bb7aa52 4457 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 4458 q7_t * pSrcB,
emilmont 1:fdd22bb7aa52 4459 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 4460 q7_t * pDst,
emilmont 1:fdd22bb7aa52 4461 q15_t * pScratch1,
emilmont 1:fdd22bb7aa52 4462 q15_t * pScratch2);
emilmont 1:fdd22bb7aa52 4463
emilmont 1:fdd22bb7aa52 4464
emilmont 1:fdd22bb7aa52 4465 /**
emilmont 1:fdd22bb7aa52 4466 * @brief Correlation of Q7 sequences.
emilmont 1:fdd22bb7aa52 4467 * @param[in] *pSrcA points to the first input sequence.
emilmont 1:fdd22bb7aa52 4468 * @param[in] srcALen length of the first input sequence.
emilmont 1:fdd22bb7aa52 4469 * @param[in] *pSrcB points to the second input sequence.
emilmont 1:fdd22bb7aa52 4470 * @param[in] srcBLen length of the second input sequence.
emilmont 1:fdd22bb7aa52 4471 * @param[out] *pDst points to the block of output data Length 2 * max(srcALen, srcBLen) - 1.
emilmont 1:fdd22bb7aa52 4472 * @return none.
emilmont 1:fdd22bb7aa52 4473 */
emilmont 1:fdd22bb7aa52 4474
emilmont 1:fdd22bb7aa52 4475 void arm_correlate_q7(
emilmont 1:fdd22bb7aa52 4476 q7_t * pSrcA,
emilmont 1:fdd22bb7aa52 4477 uint32_t srcALen,
emilmont 1:fdd22bb7aa52 4478 q7_t * pSrcB,
emilmont 1:fdd22bb7aa52 4479 uint32_t srcBLen,
emilmont 1:fdd22bb7aa52 4480 q7_t * pDst);
emilmont 1:fdd22bb7aa52 4481
emilmont 1:fdd22bb7aa52 4482
emilmont 1:fdd22bb7aa52 4483 /**
emilmont 1:fdd22bb7aa52 4484 * @brief Instance structure for the floating-point sparse FIR filter.
emilmont 1:fdd22bb7aa52 4485 */
emilmont 1:fdd22bb7aa52 4486 typedef struct
emilmont 1:fdd22bb7aa52 4487 {
emilmont 1:fdd22bb7aa52 4488 uint16_t numTaps; /**< number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 4489 uint16_t stateIndex; /**< state buffer index. Points to the oldest sample in the state buffer. */
emilmont 1:fdd22bb7aa52 4490 float32_t *pState; /**< points to the state buffer array. The array is of length maxDelay+blockSize-1. */
emilmont 1:fdd22bb7aa52 4491 float32_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/
emilmont 1:fdd22bb7aa52 4492 uint16_t maxDelay; /**< maximum offset specified by the pTapDelay array. */
emilmont 1:fdd22bb7aa52 4493 int32_t *pTapDelay; /**< points to the array of delay values. The array is of length numTaps. */
emilmont 1:fdd22bb7aa52 4494 } arm_fir_sparse_instance_f32;
emilmont 1:fdd22bb7aa52 4495
emilmont 1:fdd22bb7aa52 4496 /**
emilmont 1:fdd22bb7aa52 4497 * @brief Instance structure for the Q31 sparse FIR filter.
emilmont 1:fdd22bb7aa52 4498 */
emilmont 1:fdd22bb7aa52 4499
emilmont 1:fdd22bb7aa52 4500 typedef struct
emilmont 1:fdd22bb7aa52 4501 {
emilmont 1:fdd22bb7aa52 4502 uint16_t numTaps; /**< number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 4503 uint16_t stateIndex; /**< state buffer index. Points to the oldest sample in the state buffer. */
emilmont 1:fdd22bb7aa52 4504 q31_t *pState; /**< points to the state buffer array. The array is of length maxDelay+blockSize-1. */
emilmont 1:fdd22bb7aa52 4505 q31_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/
emilmont 1:fdd22bb7aa52 4506 uint16_t maxDelay; /**< maximum offset specified by the pTapDelay array. */
emilmont 1:fdd22bb7aa52 4507 int32_t *pTapDelay; /**< points to the array of delay values. The array is of length numTaps. */
emilmont 1:fdd22bb7aa52 4508 } arm_fir_sparse_instance_q31;
emilmont 1:fdd22bb7aa52 4509
emilmont 1:fdd22bb7aa52 4510 /**
emilmont 1:fdd22bb7aa52 4511 * @brief Instance structure for the Q15 sparse FIR filter.
emilmont 1:fdd22bb7aa52 4512 */
emilmont 1:fdd22bb7aa52 4513
emilmont 1:fdd22bb7aa52 4514 typedef struct
emilmont 1:fdd22bb7aa52 4515 {
emilmont 1:fdd22bb7aa52 4516 uint16_t numTaps; /**< number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 4517 uint16_t stateIndex; /**< state buffer index. Points to the oldest sample in the state buffer. */
emilmont 1:fdd22bb7aa52 4518 q15_t *pState; /**< points to the state buffer array. The array is of length maxDelay+blockSize-1. */
emilmont 1:fdd22bb7aa52 4519 q15_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/
emilmont 1:fdd22bb7aa52 4520 uint16_t maxDelay; /**< maximum offset specified by the pTapDelay array. */
emilmont 1:fdd22bb7aa52 4521 int32_t *pTapDelay; /**< points to the array of delay values. The array is of length numTaps. */
emilmont 1:fdd22bb7aa52 4522 } arm_fir_sparse_instance_q15;
emilmont 1:fdd22bb7aa52 4523
emilmont 1:fdd22bb7aa52 4524 /**
emilmont 1:fdd22bb7aa52 4525 * @brief Instance structure for the Q7 sparse FIR filter.
emilmont 1:fdd22bb7aa52 4526 */
emilmont 1:fdd22bb7aa52 4527
emilmont 1:fdd22bb7aa52 4528 typedef struct
emilmont 1:fdd22bb7aa52 4529 {
emilmont 1:fdd22bb7aa52 4530 uint16_t numTaps; /**< number of coefficients in the filter. */
emilmont 1:fdd22bb7aa52 4531 uint16_t stateIndex; /**< state buffer index. Points to the oldest sample in the state buffer. */
emilmont 1:fdd22bb7aa52 4532 q7_t *pState; /**< points to the state buffer array. The array is of length maxDelay+blockSize-1. */
emilmont 1:fdd22bb7aa52 4533 q7_t *pCoeffs; /**< points to the coefficient array. The array is of length numTaps.*/
emilmont 1:fdd22bb7aa52 4534 uint16_t maxDelay; /**< maximum offset specified by the pTapDelay array. */
emilmont 1:fdd22bb7aa52 4535 int32_t *pTapDelay; /**< points to the array of delay values. The array is of length numTaps. */
emilmont 1:fdd22bb7aa52 4536 } arm_fir_sparse_instance_q7;
emilmont 1:fdd22bb7aa52 4537
emilmont 1:fdd22bb7aa52 4538 /**
emilmont 1:fdd22bb7aa52 4539 * @brief Processing function for the floating-point sparse FIR filter.
emilmont 1:fdd22bb7aa52 4540 * @param[in] *S points to an instance of the floating-point sparse FIR structure.
emilmont 1:fdd22bb7aa52 4541 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 4542 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 4543 * @param[in] *pScratchIn points to a temporary buffer of size blockSize.
emilmont 1:fdd22bb7aa52 4544 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 4545 * @return none.
emilmont 1:fdd22bb7aa52 4546 */
emilmont 1:fdd22bb7aa52 4547
emilmont 1:fdd22bb7aa52 4548 void arm_fir_sparse_f32(
emilmont 1:fdd22bb7aa52 4549 arm_fir_sparse_instance_f32 * S,
emilmont 1:fdd22bb7aa52 4550 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 4551 float32_t * pDst,
emilmont 1:fdd22bb7aa52 4552 float32_t * pScratchIn,
emilmont 1:fdd22bb7aa52 4553 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4554
emilmont 1:fdd22bb7aa52 4555 /**
emilmont 1:fdd22bb7aa52 4556 * @brief Initialization function for the floating-point sparse FIR filter.
emilmont 1:fdd22bb7aa52 4557 * @param[in,out] *S points to an instance of the floating-point sparse FIR structure.
emilmont 1:fdd22bb7aa52 4558 * @param[in] numTaps number of nonzero coefficients in the filter.
emilmont 1:fdd22bb7aa52 4559 * @param[in] *pCoeffs points to the array of filter coefficients.
emilmont 1:fdd22bb7aa52 4560 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 4561 * @param[in] *pTapDelay points to the array of offset times.
emilmont 1:fdd22bb7aa52 4562 * @param[in] maxDelay maximum offset time supported.
emilmont 1:fdd22bb7aa52 4563 * @param[in] blockSize number of samples that will be processed per block.
emilmont 1:fdd22bb7aa52 4564 * @return none
emilmont 1:fdd22bb7aa52 4565 */
emilmont 1:fdd22bb7aa52 4566
emilmont 1:fdd22bb7aa52 4567 void arm_fir_sparse_init_f32(
emilmont 1:fdd22bb7aa52 4568 arm_fir_sparse_instance_f32 * S,
emilmont 1:fdd22bb7aa52 4569 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 4570 float32_t * pCoeffs,
emilmont 1:fdd22bb7aa52 4571 float32_t * pState,
emilmont 1:fdd22bb7aa52 4572 int32_t * pTapDelay,
emilmont 1:fdd22bb7aa52 4573 uint16_t maxDelay,
emilmont 1:fdd22bb7aa52 4574 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4575
emilmont 1:fdd22bb7aa52 4576 /**
emilmont 1:fdd22bb7aa52 4577 * @brief Processing function for the Q31 sparse FIR filter.
emilmont 1:fdd22bb7aa52 4578 * @param[in] *S points to an instance of the Q31 sparse FIR structure.
emilmont 1:fdd22bb7aa52 4579 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 4580 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 4581 * @param[in] *pScratchIn points to a temporary buffer of size blockSize.
emilmont 1:fdd22bb7aa52 4582 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 4583 * @return none.
emilmont 1:fdd22bb7aa52 4584 */
emilmont 1:fdd22bb7aa52 4585
emilmont 1:fdd22bb7aa52 4586 void arm_fir_sparse_q31(
emilmont 1:fdd22bb7aa52 4587 arm_fir_sparse_instance_q31 * S,
emilmont 1:fdd22bb7aa52 4588 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 4589 q31_t * pDst,
emilmont 1:fdd22bb7aa52 4590 q31_t * pScratchIn,
emilmont 1:fdd22bb7aa52 4591 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4592
emilmont 1:fdd22bb7aa52 4593 /**
emilmont 1:fdd22bb7aa52 4594 * @brief Initialization function for the Q31 sparse FIR filter.
emilmont 1:fdd22bb7aa52 4595 * @param[in,out] *S points to an instance of the Q31 sparse FIR structure.
emilmont 1:fdd22bb7aa52 4596 * @param[in] numTaps number of nonzero coefficients in the filter.
emilmont 1:fdd22bb7aa52 4597 * @param[in] *pCoeffs points to the array of filter coefficients.
emilmont 1:fdd22bb7aa52 4598 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 4599 * @param[in] *pTapDelay points to the array of offset times.
emilmont 1:fdd22bb7aa52 4600 * @param[in] maxDelay maximum offset time supported.
emilmont 1:fdd22bb7aa52 4601 * @param[in] blockSize number of samples that will be processed per block.
emilmont 1:fdd22bb7aa52 4602 * @return none
emilmont 1:fdd22bb7aa52 4603 */
emilmont 1:fdd22bb7aa52 4604
emilmont 1:fdd22bb7aa52 4605 void arm_fir_sparse_init_q31(
emilmont 1:fdd22bb7aa52 4606 arm_fir_sparse_instance_q31 * S,
emilmont 1:fdd22bb7aa52 4607 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 4608 q31_t * pCoeffs,
emilmont 1:fdd22bb7aa52 4609 q31_t * pState,
emilmont 1:fdd22bb7aa52 4610 int32_t * pTapDelay,
emilmont 1:fdd22bb7aa52 4611 uint16_t maxDelay,
emilmont 1:fdd22bb7aa52 4612 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4613
emilmont 1:fdd22bb7aa52 4614 /**
emilmont 1:fdd22bb7aa52 4615 * @brief Processing function for the Q15 sparse FIR filter.
emilmont 1:fdd22bb7aa52 4616 * @param[in] *S points to an instance of the Q15 sparse FIR structure.
emilmont 1:fdd22bb7aa52 4617 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 4618 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 4619 * @param[in] *pScratchIn points to a temporary buffer of size blockSize.
emilmont 1:fdd22bb7aa52 4620 * @param[in] *pScratchOut points to a temporary buffer of size blockSize.
emilmont 1:fdd22bb7aa52 4621 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 4622 * @return none.
emilmont 1:fdd22bb7aa52 4623 */
emilmont 1:fdd22bb7aa52 4624
emilmont 1:fdd22bb7aa52 4625 void arm_fir_sparse_q15(
emilmont 1:fdd22bb7aa52 4626 arm_fir_sparse_instance_q15 * S,
emilmont 1:fdd22bb7aa52 4627 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 4628 q15_t * pDst,
emilmont 1:fdd22bb7aa52 4629 q15_t * pScratchIn,
emilmont 1:fdd22bb7aa52 4630 q31_t * pScratchOut,
emilmont 1:fdd22bb7aa52 4631 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4632
emilmont 1:fdd22bb7aa52 4633
emilmont 1:fdd22bb7aa52 4634 /**
emilmont 1:fdd22bb7aa52 4635 * @brief Initialization function for the Q15 sparse FIR filter.
emilmont 1:fdd22bb7aa52 4636 * @param[in,out] *S points to an instance of the Q15 sparse FIR structure.
emilmont 1:fdd22bb7aa52 4637 * @param[in] numTaps number of nonzero coefficients in the filter.
emilmont 1:fdd22bb7aa52 4638 * @param[in] *pCoeffs points to the array of filter coefficients.
emilmont 1:fdd22bb7aa52 4639 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 4640 * @param[in] *pTapDelay points to the array of offset times.
emilmont 1:fdd22bb7aa52 4641 * @param[in] maxDelay maximum offset time supported.
emilmont 1:fdd22bb7aa52 4642 * @param[in] blockSize number of samples that will be processed per block.
emilmont 1:fdd22bb7aa52 4643 * @return none
emilmont 1:fdd22bb7aa52 4644 */
emilmont 1:fdd22bb7aa52 4645
emilmont 1:fdd22bb7aa52 4646 void arm_fir_sparse_init_q15(
emilmont 1:fdd22bb7aa52 4647 arm_fir_sparse_instance_q15 * S,
emilmont 1:fdd22bb7aa52 4648 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 4649 q15_t * pCoeffs,
emilmont 1:fdd22bb7aa52 4650 q15_t * pState,
emilmont 1:fdd22bb7aa52 4651 int32_t * pTapDelay,
emilmont 1:fdd22bb7aa52 4652 uint16_t maxDelay,
emilmont 1:fdd22bb7aa52 4653 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4654
emilmont 1:fdd22bb7aa52 4655 /**
emilmont 1:fdd22bb7aa52 4656 * @brief Processing function for the Q7 sparse FIR filter.
emilmont 1:fdd22bb7aa52 4657 * @param[in] *S points to an instance of the Q7 sparse FIR structure.
emilmont 1:fdd22bb7aa52 4658 * @param[in] *pSrc points to the block of input data.
emilmont 1:fdd22bb7aa52 4659 * @param[out] *pDst points to the block of output data
emilmont 1:fdd22bb7aa52 4660 * @param[in] *pScratchIn points to a temporary buffer of size blockSize.
emilmont 1:fdd22bb7aa52 4661 * @param[in] *pScratchOut points to a temporary buffer of size blockSize.
emilmont 1:fdd22bb7aa52 4662 * @param[in] blockSize number of input samples to process per call.
emilmont 1:fdd22bb7aa52 4663 * @return none.
emilmont 1:fdd22bb7aa52 4664 */
emilmont 1:fdd22bb7aa52 4665
emilmont 1:fdd22bb7aa52 4666 void arm_fir_sparse_q7(
emilmont 1:fdd22bb7aa52 4667 arm_fir_sparse_instance_q7 * S,
emilmont 1:fdd22bb7aa52 4668 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 4669 q7_t * pDst,
emilmont 1:fdd22bb7aa52 4670 q7_t * pScratchIn,
emilmont 1:fdd22bb7aa52 4671 q31_t * pScratchOut,
emilmont 1:fdd22bb7aa52 4672 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4673
emilmont 1:fdd22bb7aa52 4674 /**
emilmont 1:fdd22bb7aa52 4675 * @brief Initialization function for the Q7 sparse FIR filter.
emilmont 1:fdd22bb7aa52 4676 * @param[in,out] *S points to an instance of the Q7 sparse FIR structure.
emilmont 1:fdd22bb7aa52 4677 * @param[in] numTaps number of nonzero coefficients in the filter.
emilmont 1:fdd22bb7aa52 4678 * @param[in] *pCoeffs points to the array of filter coefficients.
emilmont 1:fdd22bb7aa52 4679 * @param[in] *pState points to the state buffer.
emilmont 1:fdd22bb7aa52 4680 * @param[in] *pTapDelay points to the array of offset times.
emilmont 1:fdd22bb7aa52 4681 * @param[in] maxDelay maximum offset time supported.
emilmont 1:fdd22bb7aa52 4682 * @param[in] blockSize number of samples that will be processed per block.
emilmont 1:fdd22bb7aa52 4683 * @return none
emilmont 1:fdd22bb7aa52 4684 */
emilmont 1:fdd22bb7aa52 4685
emilmont 1:fdd22bb7aa52 4686 void arm_fir_sparse_init_q7(
emilmont 1:fdd22bb7aa52 4687 arm_fir_sparse_instance_q7 * S,
emilmont 1:fdd22bb7aa52 4688 uint16_t numTaps,
emilmont 1:fdd22bb7aa52 4689 q7_t * pCoeffs,
emilmont 1:fdd22bb7aa52 4690 q7_t * pState,
emilmont 1:fdd22bb7aa52 4691 int32_t * pTapDelay,
emilmont 1:fdd22bb7aa52 4692 uint16_t maxDelay,
emilmont 1:fdd22bb7aa52 4693 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 4694
emilmont 1:fdd22bb7aa52 4695
emilmont 1:fdd22bb7aa52 4696 /*
emilmont 1:fdd22bb7aa52 4697 * @brief Floating-point sin_cos function.
mbed_official 3:7a284390b0ce 4698 * @param[in] theta input value in degrees
mbed_official 3:7a284390b0ce 4699 * @param[out] *pSinVal points to the processed sine output.
mbed_official 3:7a284390b0ce 4700 * @param[out] *pCosVal points to the processed cos output.
emilmont 1:fdd22bb7aa52 4701 * @return none.
emilmont 1:fdd22bb7aa52 4702 */
emilmont 1:fdd22bb7aa52 4703
emilmont 1:fdd22bb7aa52 4704 void arm_sin_cos_f32(
emilmont 1:fdd22bb7aa52 4705 float32_t theta,
emilmont 1:fdd22bb7aa52 4706 float32_t * pSinVal,
emilmont 1:fdd22bb7aa52 4707 float32_t * pCcosVal);
emilmont 1:fdd22bb7aa52 4708
emilmont 1:fdd22bb7aa52 4709 /*
emilmont 1:fdd22bb7aa52 4710 * @brief Q31 sin_cos function.
mbed_official 3:7a284390b0ce 4711 * @param[in] theta scaled input value in degrees
mbed_official 3:7a284390b0ce 4712 * @param[out] *pSinVal points to the processed sine output.
mbed_official 3:7a284390b0ce 4713 * @param[out] *pCosVal points to the processed cosine output.
emilmont 1:fdd22bb7aa52 4714 * @return none.
emilmont 1:fdd22bb7aa52 4715 */
emilmont 1:fdd22bb7aa52 4716
emilmont 1:fdd22bb7aa52 4717 void arm_sin_cos_q31(
emilmont 1:fdd22bb7aa52 4718 q31_t theta,
emilmont 1:fdd22bb7aa52 4719 q31_t * pSinVal,
emilmont 1:fdd22bb7aa52 4720 q31_t * pCosVal);
emilmont 1:fdd22bb7aa52 4721
emilmont 1:fdd22bb7aa52 4722
emilmont 1:fdd22bb7aa52 4723 /**
emilmont 1:fdd22bb7aa52 4724 * @brief Floating-point complex conjugate.
emilmont 1:fdd22bb7aa52 4725 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 4726 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 4727 * @param[in] numSamples number of complex samples in each vector
emilmont 1:fdd22bb7aa52 4728 * @return none.
emilmont 1:fdd22bb7aa52 4729 */
emilmont 1:fdd22bb7aa52 4730
emilmont 1:fdd22bb7aa52 4731 void arm_cmplx_conj_f32(
emilmont 1:fdd22bb7aa52 4732 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 4733 float32_t * pDst,
emilmont 1:fdd22bb7aa52 4734 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 4735
emilmont 1:fdd22bb7aa52 4736 /**
emilmont 1:fdd22bb7aa52 4737 * @brief Q31 complex conjugate.
emilmont 1:fdd22bb7aa52 4738 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 4739 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 4740 * @param[in] numSamples number of complex samples in each vector
emilmont 1:fdd22bb7aa52 4741 * @return none.
emilmont 1:fdd22bb7aa52 4742 */
emilmont 1:fdd22bb7aa52 4743
emilmont 1:fdd22bb7aa52 4744 void arm_cmplx_conj_q31(
emilmont 1:fdd22bb7aa52 4745 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 4746 q31_t * pDst,
emilmont 1:fdd22bb7aa52 4747 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 4748
emilmont 1:fdd22bb7aa52 4749 /**
emilmont 1:fdd22bb7aa52 4750 * @brief Q15 complex conjugate.
emilmont 1:fdd22bb7aa52 4751 * @param[in] *pSrc points to the input vector
emilmont 1:fdd22bb7aa52 4752 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 4753 * @param[in] numSamples number of complex samples in each vector
emilmont 1:fdd22bb7aa52 4754 * @return none.
emilmont 1:fdd22bb7aa52 4755 */
emilmont 1:fdd22bb7aa52 4756
emilmont 1:fdd22bb7aa52 4757 void arm_cmplx_conj_q15(
emilmont 1:fdd22bb7aa52 4758 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 4759 q15_t * pDst,
emilmont 1:fdd22bb7aa52 4760 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 4761
emilmont 1:fdd22bb7aa52 4762
emilmont 1:fdd22bb7aa52 4763
emilmont 1:fdd22bb7aa52 4764 /**
emilmont 1:fdd22bb7aa52 4765 * @brief Floating-point complex magnitude squared
emilmont 1:fdd22bb7aa52 4766 * @param[in] *pSrc points to the complex input vector
emilmont 1:fdd22bb7aa52 4767 * @param[out] *pDst points to the real output vector
emilmont 1:fdd22bb7aa52 4768 * @param[in] numSamples number of complex samples in the input vector
emilmont 1:fdd22bb7aa52 4769 * @return none.
emilmont 1:fdd22bb7aa52 4770 */
emilmont 1:fdd22bb7aa52 4771
emilmont 1:fdd22bb7aa52 4772 void arm_cmplx_mag_squared_f32(
emilmont 1:fdd22bb7aa52 4773 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 4774 float32_t * pDst,
emilmont 1:fdd22bb7aa52 4775 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 4776
emilmont 1:fdd22bb7aa52 4777 /**
emilmont 1:fdd22bb7aa52 4778 * @brief Q31 complex magnitude squared
emilmont 1:fdd22bb7aa52 4779 * @param[in] *pSrc points to the complex input vector
emilmont 1:fdd22bb7aa52 4780 * @param[out] *pDst points to the real output vector
emilmont 1:fdd22bb7aa52 4781 * @param[in] numSamples number of complex samples in the input vector
emilmont 1:fdd22bb7aa52 4782 * @return none.
emilmont 1:fdd22bb7aa52 4783 */
emilmont 1:fdd22bb7aa52 4784
emilmont 1:fdd22bb7aa52 4785 void arm_cmplx_mag_squared_q31(
emilmont 1:fdd22bb7aa52 4786 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 4787 q31_t * pDst,
emilmont 1:fdd22bb7aa52 4788 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 4789
emilmont 1:fdd22bb7aa52 4790 /**
emilmont 1:fdd22bb7aa52 4791 * @brief Q15 complex magnitude squared
emilmont 1:fdd22bb7aa52 4792 * @param[in] *pSrc points to the complex input vector
emilmont 1:fdd22bb7aa52 4793 * @param[out] *pDst points to the real output vector
emilmont 1:fdd22bb7aa52 4794 * @param[in] numSamples number of complex samples in the input vector
emilmont 1:fdd22bb7aa52 4795 * @return none.
emilmont 1:fdd22bb7aa52 4796 */
emilmont 1:fdd22bb7aa52 4797
emilmont 1:fdd22bb7aa52 4798 void arm_cmplx_mag_squared_q15(
emilmont 1:fdd22bb7aa52 4799 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 4800 q15_t * pDst,
emilmont 1:fdd22bb7aa52 4801 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 4802
emilmont 1:fdd22bb7aa52 4803
emilmont 1:fdd22bb7aa52 4804 /**
emilmont 1:fdd22bb7aa52 4805 * @ingroup groupController
emilmont 1:fdd22bb7aa52 4806 */
emilmont 1:fdd22bb7aa52 4807
emilmont 1:fdd22bb7aa52 4808 /**
emilmont 1:fdd22bb7aa52 4809 * @defgroup PID PID Motor Control
emilmont 1:fdd22bb7aa52 4810 *
mbed_official 3:7a284390b0ce 4811 * A Proportional Integral Derivative (PID) controller is a generic feedback control
emilmont 1:fdd22bb7aa52 4812 * loop mechanism widely used in industrial control systems.
emilmont 1:fdd22bb7aa52 4813 * A PID controller is the most commonly used type of feedback controller.
emilmont 1:fdd22bb7aa52 4814 *
emilmont 1:fdd22bb7aa52 4815 * This set of functions implements (PID) controllers
emilmont 1:fdd22bb7aa52 4816 * for Q15, Q31, and floating-point data types. The functions operate on a single sample
emilmont 1:fdd22bb7aa52 4817 * of data and each call to the function returns a single processed value.
emilmont 1:fdd22bb7aa52 4818 * <code>S</code> points to an instance of the PID control data structure. <code>in</code>
emilmont 1:fdd22bb7aa52 4819 * is the input sample value. The functions return the output value.
emilmont 1:fdd22bb7aa52 4820 *
emilmont 1:fdd22bb7aa52 4821 * \par Algorithm:
emilmont 1:fdd22bb7aa52 4822 * <pre>
emilmont 1:fdd22bb7aa52 4823 * y[n] = y[n-1] + A0 * x[n] + A1 * x[n-1] + A2 * x[n-2]
emilmont 1:fdd22bb7aa52 4824 * A0 = Kp + Ki + Kd
emilmont 1:fdd22bb7aa52 4825 * A1 = (-Kp ) - (2 * Kd )
emilmont 1:fdd22bb7aa52 4826 * A2 = Kd </pre>
emilmont 1:fdd22bb7aa52 4827 *
emilmont 1:fdd22bb7aa52 4828 * \par
emilmont 1:fdd22bb7aa52 4829 * where \c Kp is proportional constant, \c Ki is Integral constant and \c Kd is Derivative constant
mbed_official 3:7a284390b0ce 4830 *
mbed_official 3:7a284390b0ce 4831 * \par
mbed_official 3:7a284390b0ce 4832 * \image html PID.gif "Proportional Integral Derivative Controller"
emilmont 1:fdd22bb7aa52 4833 *
emilmont 1:fdd22bb7aa52 4834 * \par
emilmont 1:fdd22bb7aa52 4835 * The PID controller calculates an "error" value as the difference between
emilmont 1:fdd22bb7aa52 4836 * the measured output and the reference input.
mbed_official 3:7a284390b0ce 4837 * The controller attempts to minimize the error by adjusting the process control inputs.
mbed_official 3:7a284390b0ce 4838 * The proportional value determines the reaction to the current error,
mbed_official 3:7a284390b0ce 4839 * the integral value determines the reaction based on the sum of recent errors,
emilmont 1:fdd22bb7aa52 4840 * and the derivative value determines the reaction based on the rate at which the error has been changing.
emilmont 1:fdd22bb7aa52 4841 *
mbed_official 3:7a284390b0ce 4842 * \par Instance Structure
mbed_official 3:7a284390b0ce 4843 * The Gains A0, A1, A2 and state variables for a PID controller are stored together in an instance data structure.
mbed_official 3:7a284390b0ce 4844 * A separate instance structure must be defined for each PID Controller.
mbed_official 3:7a284390b0ce 4845 * There are separate instance structure declarations for each of the 3 supported data types.
mbed_official 3:7a284390b0ce 4846 *
mbed_official 3:7a284390b0ce 4847 * \par Reset Functions
mbed_official 3:7a284390b0ce 4848 * There is also an associated reset function for each data type which clears the state array.
emilmont 1:fdd22bb7aa52 4849 *
mbed_official 3:7a284390b0ce 4850 * \par Initialization Functions
mbed_official 3:7a284390b0ce 4851 * There is also an associated initialization function for each data type.
mbed_official 3:7a284390b0ce 4852 * The initialization function performs the following operations:
emilmont 1:fdd22bb7aa52 4853 * - Initializes the Gains A0, A1, A2 from Kp,Ki, Kd gains.
mbed_official 3:7a284390b0ce 4854 * - Zeros out the values in the state buffer.
mbed_official 3:7a284390b0ce 4855 *
mbed_official 3:7a284390b0ce 4856 * \par
mbed_official 3:7a284390b0ce 4857 * Instance structure cannot be placed into a const data section and it is recommended to use the initialization function.
emilmont 1:fdd22bb7aa52 4858 *
mbed_official 3:7a284390b0ce 4859 * \par Fixed-Point Behavior
mbed_official 3:7a284390b0ce 4860 * Care must be taken when using the fixed-point versions of the PID Controller functions.
mbed_official 3:7a284390b0ce 4861 * In particular, the overflow and saturation behavior of the accumulator used in each function must be considered.
mbed_official 3:7a284390b0ce 4862 * Refer to the function specific documentation below for usage guidelines.
emilmont 1:fdd22bb7aa52 4863 */
emilmont 1:fdd22bb7aa52 4864
emilmont 1:fdd22bb7aa52 4865 /**
emilmont 1:fdd22bb7aa52 4866 * @addtogroup PID
emilmont 1:fdd22bb7aa52 4867 * @{
emilmont 1:fdd22bb7aa52 4868 */
emilmont 1:fdd22bb7aa52 4869
emilmont 1:fdd22bb7aa52 4870 /**
emilmont 1:fdd22bb7aa52 4871 * @brief Process function for the floating-point PID Control.
emilmont 1:fdd22bb7aa52 4872 * @param[in,out] *S is an instance of the floating-point PID Control structure
emilmont 1:fdd22bb7aa52 4873 * @param[in] in input sample to process
emilmont 1:fdd22bb7aa52 4874 * @return out processed output sample.
emilmont 1:fdd22bb7aa52 4875 */
emilmont 1:fdd22bb7aa52 4876
emilmont 1:fdd22bb7aa52 4877
mbed_official 3:7a284390b0ce 4878 static __INLINE float32_t arm_pid_f32(
emilmont 1:fdd22bb7aa52 4879 arm_pid_instance_f32 * S,
emilmont 1:fdd22bb7aa52 4880 float32_t in)
emilmont 1:fdd22bb7aa52 4881 {
emilmont 1:fdd22bb7aa52 4882 float32_t out;
emilmont 1:fdd22bb7aa52 4883
emilmont 1:fdd22bb7aa52 4884 /* y[n] = y[n-1] + A0 * x[n] + A1 * x[n-1] + A2 * x[n-2] */
emilmont 1:fdd22bb7aa52 4885 out = (S->A0 * in) +
emilmont 1:fdd22bb7aa52 4886 (S->A1 * S->state[0]) + (S->A2 * S->state[1]) + (S->state[2]);
emilmont 1:fdd22bb7aa52 4887
emilmont 1:fdd22bb7aa52 4888 /* Update state */
emilmont 1:fdd22bb7aa52 4889 S->state[1] = S->state[0];
emilmont 1:fdd22bb7aa52 4890 S->state[0] = in;
emilmont 1:fdd22bb7aa52 4891 S->state[2] = out;
emilmont 1:fdd22bb7aa52 4892
emilmont 1:fdd22bb7aa52 4893 /* return to application */
emilmont 1:fdd22bb7aa52 4894 return (out);
emilmont 1:fdd22bb7aa52 4895
emilmont 1:fdd22bb7aa52 4896 }
emilmont 1:fdd22bb7aa52 4897
emilmont 1:fdd22bb7aa52 4898 /**
emilmont 1:fdd22bb7aa52 4899 * @brief Process function for the Q31 PID Control.
emilmont 1:fdd22bb7aa52 4900 * @param[in,out] *S points to an instance of the Q31 PID Control structure
emilmont 1:fdd22bb7aa52 4901 * @param[in] in input sample to process
emilmont 1:fdd22bb7aa52 4902 * @return out processed output sample.
emilmont 1:fdd22bb7aa52 4903 *
mbed_official 3:7a284390b0ce 4904 * <b>Scaling and Overflow Behavior:</b>
mbed_official 3:7a284390b0ce 4905 * \par
mbed_official 3:7a284390b0ce 4906 * The function is implemented using an internal 64-bit accumulator.
mbed_official 3:7a284390b0ce 4907 * The accumulator has a 2.62 format and maintains full precision of the intermediate multiplication results but provides only a single guard bit.
mbed_official 3:7a284390b0ce 4908 * Thus, if the accumulator result overflows it wraps around rather than clip.
mbed_official 3:7a284390b0ce 4909 * In order to avoid overflows completely the input signal must be scaled down by 2 bits as there are four additions.
mbed_official 3:7a284390b0ce 4910 * After all multiply-accumulates are performed, the 2.62 accumulator is truncated to 1.32 format and then saturated to 1.31 format.
mbed_official 3:7a284390b0ce 4911 */
mbed_official 3:7a284390b0ce 4912
mbed_official 3:7a284390b0ce 4913 static __INLINE q31_t arm_pid_q31(
emilmont 1:fdd22bb7aa52 4914 arm_pid_instance_q31 * S,
emilmont 1:fdd22bb7aa52 4915 q31_t in)
emilmont 1:fdd22bb7aa52 4916 {
emilmont 1:fdd22bb7aa52 4917 q63_t acc;
emilmont 1:fdd22bb7aa52 4918 q31_t out;
emilmont 1:fdd22bb7aa52 4919
emilmont 1:fdd22bb7aa52 4920 /* acc = A0 * x[n] */
emilmont 1:fdd22bb7aa52 4921 acc = (q63_t) S->A0 * in;
emilmont 1:fdd22bb7aa52 4922
emilmont 1:fdd22bb7aa52 4923 /* acc += A1 * x[n-1] */
emilmont 1:fdd22bb7aa52 4924 acc += (q63_t) S->A1 * S->state[0];
emilmont 1:fdd22bb7aa52 4925
emilmont 1:fdd22bb7aa52 4926 /* acc += A2 * x[n-2] */
emilmont 1:fdd22bb7aa52 4927 acc += (q63_t) S->A2 * S->state[1];
emilmont 1:fdd22bb7aa52 4928
emilmont 1:fdd22bb7aa52 4929 /* convert output to 1.31 format to add y[n-1] */
emilmont 1:fdd22bb7aa52 4930 out = (q31_t) (acc >> 31u);
emilmont 1:fdd22bb7aa52 4931
emilmont 1:fdd22bb7aa52 4932 /* out += y[n-1] */
emilmont 1:fdd22bb7aa52 4933 out += S->state[2];
emilmont 1:fdd22bb7aa52 4934
emilmont 1:fdd22bb7aa52 4935 /* Update state */
emilmont 1:fdd22bb7aa52 4936 S->state[1] = S->state[0];
emilmont 1:fdd22bb7aa52 4937 S->state[0] = in;
emilmont 1:fdd22bb7aa52 4938 S->state[2] = out;
emilmont 1:fdd22bb7aa52 4939
emilmont 1:fdd22bb7aa52 4940 /* return to application */
emilmont 1:fdd22bb7aa52 4941 return (out);
emilmont 1:fdd22bb7aa52 4942
emilmont 1:fdd22bb7aa52 4943 }
emilmont 1:fdd22bb7aa52 4944
emilmont 1:fdd22bb7aa52 4945 /**
emilmont 1:fdd22bb7aa52 4946 * @brief Process function for the Q15 PID Control.
emilmont 1:fdd22bb7aa52 4947 * @param[in,out] *S points to an instance of the Q15 PID Control structure
emilmont 1:fdd22bb7aa52 4948 * @param[in] in input sample to process
emilmont 1:fdd22bb7aa52 4949 * @return out processed output sample.
emilmont 1:fdd22bb7aa52 4950 *
mbed_official 3:7a284390b0ce 4951 * <b>Scaling and Overflow Behavior:</b>
mbed_official 3:7a284390b0ce 4952 * \par
mbed_official 3:7a284390b0ce 4953 * The function is implemented using a 64-bit internal accumulator.
mbed_official 3:7a284390b0ce 4954 * Both Gains and state variables are represented in 1.15 format and multiplications yield a 2.30 result.
mbed_official 3:7a284390b0ce 4955 * The 2.30 intermediate results are accumulated in a 64-bit accumulator in 34.30 format.
mbed_official 3:7a284390b0ce 4956 * There is no risk of internal overflow with this approach and the full precision of intermediate multiplications is preserved.
mbed_official 3:7a284390b0ce 4957 * After all additions have been performed, the accumulator is truncated to 34.15 format by discarding low 15 bits.
emilmont 1:fdd22bb7aa52 4958 * Lastly, the accumulator is saturated to yield a result in 1.15 format.
emilmont 1:fdd22bb7aa52 4959 */
emilmont 1:fdd22bb7aa52 4960
mbed_official 3:7a284390b0ce 4961 static __INLINE q15_t arm_pid_q15(
emilmont 1:fdd22bb7aa52 4962 arm_pid_instance_q15 * S,
emilmont 1:fdd22bb7aa52 4963 q15_t in)
emilmont 1:fdd22bb7aa52 4964 {
emilmont 1:fdd22bb7aa52 4965 q63_t acc;
emilmont 1:fdd22bb7aa52 4966 q15_t out;
emilmont 1:fdd22bb7aa52 4967
mbed_official 3:7a284390b0ce 4968 #ifndef ARM_MATH_CM0_FAMILY
mbed_official 3:7a284390b0ce 4969 __SIMD32_TYPE *vstate;
mbed_official 3:7a284390b0ce 4970
emilmont 1:fdd22bb7aa52 4971 /* Implementation of PID controller */
emilmont 1:fdd22bb7aa52 4972
emilmont 1:fdd22bb7aa52 4973 /* acc = A0 * x[n] */
emilmont 1:fdd22bb7aa52 4974 acc = (q31_t) __SMUAD(S->A0, in);
emilmont 1:fdd22bb7aa52 4975
mbed_official 3:7a284390b0ce 4976 /* acc += A1 * x[n-1] + A2 * x[n-2] */
mbed_official 3:7a284390b0ce 4977 vstate = __SIMD32_CONST(S->state);
mbed_official 3:7a284390b0ce 4978 acc = __SMLALD(S->A1, (q31_t) *vstate, acc);
mbed_official 3:7a284390b0ce 4979
mbed_official 3:7a284390b0ce 4980 #else
mbed_official 3:7a284390b0ce 4981 /* acc = A0 * x[n] */
mbed_official 3:7a284390b0ce 4982 acc = ((q31_t) S->A0) * in;
emilmont 1:fdd22bb7aa52 4983
emilmont 1:fdd22bb7aa52 4984 /* acc += A1 * x[n-1] + A2 * x[n-2] */
emilmont 1:fdd22bb7aa52 4985 acc += (q31_t) S->A1 * S->state[0];
emilmont 1:fdd22bb7aa52 4986 acc += (q31_t) S->A2 * S->state[1];
emilmont 1:fdd22bb7aa52 4987
emilmont 1:fdd22bb7aa52 4988 #endif
emilmont 1:fdd22bb7aa52 4989
emilmont 1:fdd22bb7aa52 4990 /* acc += y[n-1] */
emilmont 1:fdd22bb7aa52 4991 acc += (q31_t) S->state[2] << 15;
emilmont 1:fdd22bb7aa52 4992
emilmont 1:fdd22bb7aa52 4993 /* saturate the output */
emilmont 1:fdd22bb7aa52 4994 out = (q15_t) (__SSAT((acc >> 15), 16));
emilmont 1:fdd22bb7aa52 4995
emilmont 1:fdd22bb7aa52 4996 /* Update state */
emilmont 1:fdd22bb7aa52 4997 S->state[1] = S->state[0];
emilmont 1:fdd22bb7aa52 4998 S->state[0] = in;
emilmont 1:fdd22bb7aa52 4999 S->state[2] = out;
emilmont 1:fdd22bb7aa52 5000
emilmont 1:fdd22bb7aa52 5001 /* return to application */
emilmont 1:fdd22bb7aa52 5002 return (out);
emilmont 1:fdd22bb7aa52 5003
emilmont 1:fdd22bb7aa52 5004 }
emilmont 1:fdd22bb7aa52 5005
emilmont 1:fdd22bb7aa52 5006 /**
emilmont 1:fdd22bb7aa52 5007 * @} end of PID group
emilmont 1:fdd22bb7aa52 5008 */
emilmont 1:fdd22bb7aa52 5009
emilmont 1:fdd22bb7aa52 5010
emilmont 1:fdd22bb7aa52 5011 /**
emilmont 1:fdd22bb7aa52 5012 * @brief Floating-point matrix inverse.
emilmont 1:fdd22bb7aa52 5013 * @param[in] *src points to the instance of the input floating-point matrix structure.
emilmont 1:fdd22bb7aa52 5014 * @param[out] *dst points to the instance of the output floating-point matrix structure.
emilmont 1:fdd22bb7aa52 5015 * @return The function returns ARM_MATH_SIZE_MISMATCH, if the dimensions do not match.
emilmont 1:fdd22bb7aa52 5016 * If the input matrix is singular (does not have an inverse), then the algorithm terminates and returns error status ARM_MATH_SINGULAR.
emilmont 1:fdd22bb7aa52 5017 */
emilmont 1:fdd22bb7aa52 5018
emilmont 1:fdd22bb7aa52 5019 arm_status arm_mat_inverse_f32(
emilmont 1:fdd22bb7aa52 5020 const arm_matrix_instance_f32 * src,
emilmont 1:fdd22bb7aa52 5021 arm_matrix_instance_f32 * dst);
emilmont 1:fdd22bb7aa52 5022
emilmont 1:fdd22bb7aa52 5023
emilmont 1:fdd22bb7aa52 5024
emilmont 1:fdd22bb7aa52 5025 /**
emilmont 1:fdd22bb7aa52 5026 * @ingroup groupController
emilmont 1:fdd22bb7aa52 5027 */
emilmont 1:fdd22bb7aa52 5028
emilmont 1:fdd22bb7aa52 5029
emilmont 1:fdd22bb7aa52 5030 /**
emilmont 1:fdd22bb7aa52 5031 * @defgroup clarke Vector Clarke Transform
emilmont 1:fdd22bb7aa52 5032 * Forward Clarke transform converts the instantaneous stator phases into a two-coordinate time invariant vector.
emilmont 1:fdd22bb7aa52 5033 * Generally the Clarke transform uses three-phase currents <code>Ia, Ib and Ic</code> to calculate currents
emilmont 1:fdd22bb7aa52 5034 * in the two-phase orthogonal stator axis <code>Ialpha</code> and <code>Ibeta</code>.
emilmont 1:fdd22bb7aa52 5035 * When <code>Ialpha</code> is superposed with <code>Ia</code> as shown in the figure below
emilmont 1:fdd22bb7aa52 5036 * \image html clarke.gif Stator current space vector and its components in (a,b).
emilmont 1:fdd22bb7aa52 5037 * and <code>Ia + Ib + Ic = 0</code>, in this condition <code>Ialpha</code> and <code>Ibeta</code>
emilmont 1:fdd22bb7aa52 5038 * can be calculated using only <code>Ia</code> and <code>Ib</code>.
emilmont 1:fdd22bb7aa52 5039 *
mbed_official 3:7a284390b0ce 5040 * The function operates on a single sample of data and each call to the function returns the processed output.
emilmont 1:fdd22bb7aa52 5041 * The library provides separate functions for Q31 and floating-point data types.
emilmont 1:fdd22bb7aa52 5042 * \par Algorithm
emilmont 1:fdd22bb7aa52 5043 * \image html clarkeFormula.gif
emilmont 1:fdd22bb7aa52 5044 * where <code>Ia</code> and <code>Ib</code> are the instantaneous stator phases and
emilmont 1:fdd22bb7aa52 5045 * <code>pIalpha</code> and <code>pIbeta</code> are the two coordinates of time invariant vector.
emilmont 1:fdd22bb7aa52 5046 * \par Fixed-Point Behavior
emilmont 1:fdd22bb7aa52 5047 * Care must be taken when using the Q31 version of the Clarke transform.
emilmont 1:fdd22bb7aa52 5048 * In particular, the overflow and saturation behavior of the accumulator used must be considered.
emilmont 1:fdd22bb7aa52 5049 * Refer to the function specific documentation below for usage guidelines.
emilmont 1:fdd22bb7aa52 5050 */
emilmont 1:fdd22bb7aa52 5051
emilmont 1:fdd22bb7aa52 5052 /**
emilmont 1:fdd22bb7aa52 5053 * @addtogroup clarke
emilmont 1:fdd22bb7aa52 5054 * @{
emilmont 1:fdd22bb7aa52 5055 */
emilmont 1:fdd22bb7aa52 5056
emilmont 1:fdd22bb7aa52 5057 /**
emilmont 1:fdd22bb7aa52 5058 *
emilmont 1:fdd22bb7aa52 5059 * @brief Floating-point Clarke transform
emilmont 1:fdd22bb7aa52 5060 * @param[in] Ia input three-phase coordinate <code>a</code>
emilmont 1:fdd22bb7aa52 5061 * @param[in] Ib input three-phase coordinate <code>b</code>
emilmont 1:fdd22bb7aa52 5062 * @param[out] *pIalpha points to output two-phase orthogonal vector axis alpha
emilmont 1:fdd22bb7aa52 5063 * @param[out] *pIbeta points to output two-phase orthogonal vector axis beta
emilmont 1:fdd22bb7aa52 5064 * @return none.
emilmont 1:fdd22bb7aa52 5065 */
emilmont 1:fdd22bb7aa52 5066
mbed_official 3:7a284390b0ce 5067 static __INLINE void arm_clarke_f32(
emilmont 1:fdd22bb7aa52 5068 float32_t Ia,
emilmont 1:fdd22bb7aa52 5069 float32_t Ib,
emilmont 1:fdd22bb7aa52 5070 float32_t * pIalpha,
emilmont 1:fdd22bb7aa52 5071 float32_t * pIbeta)
emilmont 1:fdd22bb7aa52 5072 {
emilmont 1:fdd22bb7aa52 5073 /* Calculate pIalpha using the equation, pIalpha = Ia */
emilmont 1:fdd22bb7aa52 5074 *pIalpha = Ia;
emilmont 1:fdd22bb7aa52 5075
emilmont 1:fdd22bb7aa52 5076 /* Calculate pIbeta using the equation, pIbeta = (1/sqrt(3)) * Ia + (2/sqrt(3)) * Ib */
emilmont 1:fdd22bb7aa52 5077 *pIbeta =
emilmont 1:fdd22bb7aa52 5078 ((float32_t) 0.57735026919 * Ia + (float32_t) 1.15470053838 * Ib);
emilmont 1:fdd22bb7aa52 5079
emilmont 1:fdd22bb7aa52 5080 }
emilmont 1:fdd22bb7aa52 5081
emilmont 1:fdd22bb7aa52 5082 /**
emilmont 1:fdd22bb7aa52 5083 * @brief Clarke transform for Q31 version
emilmont 1:fdd22bb7aa52 5084 * @param[in] Ia input three-phase coordinate <code>a</code>
emilmont 1:fdd22bb7aa52 5085 * @param[in] Ib input three-phase coordinate <code>b</code>
emilmont 1:fdd22bb7aa52 5086 * @param[out] *pIalpha points to output two-phase orthogonal vector axis alpha
emilmont 1:fdd22bb7aa52 5087 * @param[out] *pIbeta points to output two-phase orthogonal vector axis beta
emilmont 1:fdd22bb7aa52 5088 * @return none.
emilmont 1:fdd22bb7aa52 5089 *
emilmont 1:fdd22bb7aa52 5090 * <b>Scaling and Overflow Behavior:</b>
emilmont 1:fdd22bb7aa52 5091 * \par
emilmont 1:fdd22bb7aa52 5092 * The function is implemented using an internal 32-bit accumulator.
emilmont 1:fdd22bb7aa52 5093 * The accumulator maintains 1.31 format by truncating lower 31 bits of the intermediate multiplication in 2.62 format.
emilmont 1:fdd22bb7aa52 5094 * There is saturation on the addition, hence there is no risk of overflow.
emilmont 1:fdd22bb7aa52 5095 */
emilmont 1:fdd22bb7aa52 5096
mbed_official 3:7a284390b0ce 5097 static __INLINE void arm_clarke_q31(
emilmont 1:fdd22bb7aa52 5098 q31_t Ia,
emilmont 1:fdd22bb7aa52 5099 q31_t Ib,
emilmont 1:fdd22bb7aa52 5100 q31_t * pIalpha,
emilmont 1:fdd22bb7aa52 5101 q31_t * pIbeta)
emilmont 1:fdd22bb7aa52 5102 {
emilmont 1:fdd22bb7aa52 5103 q31_t product1, product2; /* Temporary variables used to store intermediate results */
emilmont 1:fdd22bb7aa52 5104
emilmont 1:fdd22bb7aa52 5105 /* Calculating pIalpha from Ia by equation pIalpha = Ia */
emilmont 1:fdd22bb7aa52 5106 *pIalpha = Ia;
emilmont 1:fdd22bb7aa52 5107
emilmont 1:fdd22bb7aa52 5108 /* Intermediate product is calculated by (1/(sqrt(3)) * Ia) */
emilmont 1:fdd22bb7aa52 5109 product1 = (q31_t) (((q63_t) Ia * 0x24F34E8B) >> 30);
emilmont 1:fdd22bb7aa52 5110
emilmont 1:fdd22bb7aa52 5111 /* Intermediate product is calculated by (2/sqrt(3) * Ib) */
emilmont 1:fdd22bb7aa52 5112 product2 = (q31_t) (((q63_t) Ib * 0x49E69D16) >> 30);
emilmont 1:fdd22bb7aa52 5113
emilmont 1:fdd22bb7aa52 5114 /* pIbeta is calculated by adding the intermediate products */
emilmont 1:fdd22bb7aa52 5115 *pIbeta = __QADD(product1, product2);
emilmont 1:fdd22bb7aa52 5116 }
emilmont 1:fdd22bb7aa52 5117
emilmont 1:fdd22bb7aa52 5118 /**
emilmont 1:fdd22bb7aa52 5119 * @} end of clarke group
emilmont 1:fdd22bb7aa52 5120 */
emilmont 1:fdd22bb7aa52 5121
emilmont 1:fdd22bb7aa52 5122 /**
emilmont 1:fdd22bb7aa52 5123 * @brief Converts the elements of the Q7 vector to Q31 vector.
emilmont 1:fdd22bb7aa52 5124 * @param[in] *pSrc input pointer
emilmont 1:fdd22bb7aa52 5125 * @param[out] *pDst output pointer
emilmont 1:fdd22bb7aa52 5126 * @param[in] blockSize number of samples to process
emilmont 1:fdd22bb7aa52 5127 * @return none.
emilmont 1:fdd22bb7aa52 5128 */
emilmont 1:fdd22bb7aa52 5129 void arm_q7_to_q31(
emilmont 1:fdd22bb7aa52 5130 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 5131 q31_t * pDst,
emilmont 1:fdd22bb7aa52 5132 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 5133
emilmont 1:fdd22bb7aa52 5134
emilmont 1:fdd22bb7aa52 5135
emilmont 1:fdd22bb7aa52 5136
emilmont 1:fdd22bb7aa52 5137 /**
emilmont 1:fdd22bb7aa52 5138 * @ingroup groupController
emilmont 1:fdd22bb7aa52 5139 */
emilmont 1:fdd22bb7aa52 5140
emilmont 1:fdd22bb7aa52 5141 /**
emilmont 1:fdd22bb7aa52 5142 * @defgroup inv_clarke Vector Inverse Clarke Transform
emilmont 1:fdd22bb7aa52 5143 * Inverse Clarke transform converts the two-coordinate time invariant vector into instantaneous stator phases.
mbed_official 3:7a284390b0ce 5144 *
mbed_official 3:7a284390b0ce 5145 * The function operates on a single sample of data and each call to the function returns the processed output.
emilmont 1:fdd22bb7aa52 5146 * The library provides separate functions for Q31 and floating-point data types.
emilmont 1:fdd22bb7aa52 5147 * \par Algorithm
emilmont 1:fdd22bb7aa52 5148 * \image html clarkeInvFormula.gif
emilmont 1:fdd22bb7aa52 5149 * where <code>pIa</code> and <code>pIb</code> are the instantaneous stator phases and
emilmont 1:fdd22bb7aa52 5150 * <code>Ialpha</code> and <code>Ibeta</code> are the two coordinates of time invariant vector.
emilmont 1:fdd22bb7aa52 5151 * \par Fixed-Point Behavior
emilmont 1:fdd22bb7aa52 5152 * Care must be taken when using the Q31 version of the Clarke transform.
emilmont 1:fdd22bb7aa52 5153 * In particular, the overflow and saturation behavior of the accumulator used must be considered.
emilmont 1:fdd22bb7aa52 5154 * Refer to the function specific documentation below for usage guidelines.
emilmont 1:fdd22bb7aa52 5155 */
emilmont 1:fdd22bb7aa52 5156
emilmont 1:fdd22bb7aa52 5157 /**
emilmont 1:fdd22bb7aa52 5158 * @addtogroup inv_clarke
emilmont 1:fdd22bb7aa52 5159 * @{
emilmont 1:fdd22bb7aa52 5160 */
emilmont 1:fdd22bb7aa52 5161
emilmont 1:fdd22bb7aa52 5162 /**
emilmont 1:fdd22bb7aa52 5163 * @brief Floating-point Inverse Clarke transform
emilmont 1:fdd22bb7aa52 5164 * @param[in] Ialpha input two-phase orthogonal vector axis alpha
emilmont 1:fdd22bb7aa52 5165 * @param[in] Ibeta input two-phase orthogonal vector axis beta
emilmont 1:fdd22bb7aa52 5166 * @param[out] *pIa points to output three-phase coordinate <code>a</code>
emilmont 1:fdd22bb7aa52 5167 * @param[out] *pIb points to output three-phase coordinate <code>b</code>
emilmont 1:fdd22bb7aa52 5168 * @return none.
emilmont 1:fdd22bb7aa52 5169 */
emilmont 1:fdd22bb7aa52 5170
emilmont 1:fdd22bb7aa52 5171
mbed_official 3:7a284390b0ce 5172 static __INLINE void arm_inv_clarke_f32(
emilmont 1:fdd22bb7aa52 5173 float32_t Ialpha,
emilmont 1:fdd22bb7aa52 5174 float32_t Ibeta,
emilmont 1:fdd22bb7aa52 5175 float32_t * pIa,
emilmont 1:fdd22bb7aa52 5176 float32_t * pIb)
emilmont 1:fdd22bb7aa52 5177 {
emilmont 1:fdd22bb7aa52 5178 /* Calculating pIa from Ialpha by equation pIa = Ialpha */
emilmont 1:fdd22bb7aa52 5179 *pIa = Ialpha;
emilmont 1:fdd22bb7aa52 5180
emilmont 1:fdd22bb7aa52 5181 /* Calculating pIb from Ialpha and Ibeta by equation pIb = -(1/2) * Ialpha + (sqrt(3)/2) * Ibeta */
emilmont 1:fdd22bb7aa52 5182 *pIb = -0.5 * Ialpha + (float32_t) 0.8660254039 *Ibeta;
emilmont 1:fdd22bb7aa52 5183
emilmont 1:fdd22bb7aa52 5184 }
emilmont 1:fdd22bb7aa52 5185
emilmont 1:fdd22bb7aa52 5186 /**
mbed_official 3:7a284390b0ce 5187 * @brief Inverse Clarke transform for Q31 version
emilmont 1:fdd22bb7aa52 5188 * @param[in] Ialpha input two-phase orthogonal vector axis alpha
emilmont 1:fdd22bb7aa52 5189 * @param[in] Ibeta input two-phase orthogonal vector axis beta
emilmont 1:fdd22bb7aa52 5190 * @param[out] *pIa points to output three-phase coordinate <code>a</code>
emilmont 1:fdd22bb7aa52 5191 * @param[out] *pIb points to output three-phase coordinate <code>b</code>
emilmont 1:fdd22bb7aa52 5192 * @return none.
emilmont 1:fdd22bb7aa52 5193 *
emilmont 1:fdd22bb7aa52 5194 * <b>Scaling and Overflow Behavior:</b>
emilmont 1:fdd22bb7aa52 5195 * \par
emilmont 1:fdd22bb7aa52 5196 * The function is implemented using an internal 32-bit accumulator.
emilmont 1:fdd22bb7aa52 5197 * The accumulator maintains 1.31 format by truncating lower 31 bits of the intermediate multiplication in 2.62 format.
emilmont 1:fdd22bb7aa52 5198 * There is saturation on the subtraction, hence there is no risk of overflow.
emilmont 1:fdd22bb7aa52 5199 */
emilmont 1:fdd22bb7aa52 5200
mbed_official 3:7a284390b0ce 5201 static __INLINE void arm_inv_clarke_q31(
emilmont 1:fdd22bb7aa52 5202 q31_t Ialpha,
emilmont 1:fdd22bb7aa52 5203 q31_t Ibeta,
emilmont 1:fdd22bb7aa52 5204 q31_t * pIa,
emilmont 1:fdd22bb7aa52 5205 q31_t * pIb)
emilmont 1:fdd22bb7aa52 5206 {
emilmont 1:fdd22bb7aa52 5207 q31_t product1, product2; /* Temporary variables used to store intermediate results */
emilmont 1:fdd22bb7aa52 5208
emilmont 1:fdd22bb7aa52 5209 /* Calculating pIa from Ialpha by equation pIa = Ialpha */
emilmont 1:fdd22bb7aa52 5210 *pIa = Ialpha;
emilmont 1:fdd22bb7aa52 5211
emilmont 1:fdd22bb7aa52 5212 /* Intermediate product is calculated by (1/(2*sqrt(3)) * Ia) */
emilmont 1:fdd22bb7aa52 5213 product1 = (q31_t) (((q63_t) (Ialpha) * (0x40000000)) >> 31);
emilmont 1:fdd22bb7aa52 5214
emilmont 1:fdd22bb7aa52 5215 /* Intermediate product is calculated by (1/sqrt(3) * pIb) */
emilmont 1:fdd22bb7aa52 5216 product2 = (q31_t) (((q63_t) (Ibeta) * (0x6ED9EBA1)) >> 31);
emilmont 1:fdd22bb7aa52 5217
emilmont 1:fdd22bb7aa52 5218 /* pIb is calculated by subtracting the products */
emilmont 1:fdd22bb7aa52 5219 *pIb = __QSUB(product2, product1);
emilmont 1:fdd22bb7aa52 5220
emilmont 1:fdd22bb7aa52 5221 }
emilmont 1:fdd22bb7aa52 5222
emilmont 1:fdd22bb7aa52 5223 /**
emilmont 1:fdd22bb7aa52 5224 * @} end of inv_clarke group
emilmont 1:fdd22bb7aa52 5225 */
emilmont 1:fdd22bb7aa52 5226
emilmont 1:fdd22bb7aa52 5227 /**
emilmont 1:fdd22bb7aa52 5228 * @brief Converts the elements of the Q7 vector to Q15 vector.
emilmont 1:fdd22bb7aa52 5229 * @param[in] *pSrc input pointer
emilmont 1:fdd22bb7aa52 5230 * @param[out] *pDst output pointer
emilmont 1:fdd22bb7aa52 5231 * @param[in] blockSize number of samples to process
emilmont 1:fdd22bb7aa52 5232 * @return none.
emilmont 1:fdd22bb7aa52 5233 */
emilmont 1:fdd22bb7aa52 5234 void arm_q7_to_q15(
emilmont 1:fdd22bb7aa52 5235 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 5236 q15_t * pDst,
emilmont 1:fdd22bb7aa52 5237 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 5238
emilmont 1:fdd22bb7aa52 5239
emilmont 1:fdd22bb7aa52 5240
emilmont 1:fdd22bb7aa52 5241 /**
emilmont 1:fdd22bb7aa52 5242 * @ingroup groupController
emilmont 1:fdd22bb7aa52 5243 */
emilmont 1:fdd22bb7aa52 5244
emilmont 1:fdd22bb7aa52 5245 /**
emilmont 1:fdd22bb7aa52 5246 * @defgroup park Vector Park Transform
emilmont 1:fdd22bb7aa52 5247 *
emilmont 1:fdd22bb7aa52 5248 * Forward Park transform converts the input two-coordinate vector to flux and torque components.
mbed_official 3:7a284390b0ce 5249 * The Park transform can be used to realize the transformation of the <code>Ialpha</code> and the <code>Ibeta</code> currents
mbed_official 3:7a284390b0ce 5250 * from the stationary to the moving reference frame and control the spatial relationship between
emilmont 1:fdd22bb7aa52 5251 * the stator vector current and rotor flux vector.
mbed_official 3:7a284390b0ce 5252 * If we consider the d axis aligned with the rotor flux, the diagram below shows the
emilmont 1:fdd22bb7aa52 5253 * current vector and the relationship from the two reference frames:
emilmont 1:fdd22bb7aa52 5254 * \image html park.gif "Stator current space vector and its component in (a,b) and in the d,q rotating reference frame"
emilmont 1:fdd22bb7aa52 5255 *
mbed_official 3:7a284390b0ce 5256 * The function operates on a single sample of data and each call to the function returns the processed output.
emilmont 1:fdd22bb7aa52 5257 * The library provides separate functions for Q31 and floating-point data types.
emilmont 1:fdd22bb7aa52 5258 * \par Algorithm
emilmont 1:fdd22bb7aa52 5259 * \image html parkFormula.gif
mbed_official 3:7a284390b0ce 5260 * where <code>Ialpha</code> and <code>Ibeta</code> are the stator vector components,
mbed_official 3:7a284390b0ce 5261 * <code>pId</code> and <code>pIq</code> are rotor vector components and <code>cosVal</code> and <code>sinVal</code> are the
emilmont 1:fdd22bb7aa52 5262 * cosine and sine values of theta (rotor flux position).
emilmont 1:fdd22bb7aa52 5263 * \par Fixed-Point Behavior
emilmont 1:fdd22bb7aa52 5264 * Care must be taken when using the Q31 version of the Park transform.
emilmont 1:fdd22bb7aa52 5265 * In particular, the overflow and saturation behavior of the accumulator used must be considered.
emilmont 1:fdd22bb7aa52 5266 * Refer to the function specific documentation below for usage guidelines.
emilmont 1:fdd22bb7aa52 5267 */
emilmont 1:fdd22bb7aa52 5268
emilmont 1:fdd22bb7aa52 5269 /**
emilmont 1:fdd22bb7aa52 5270 * @addtogroup park
emilmont 1:fdd22bb7aa52 5271 * @{
emilmont 1:fdd22bb7aa52 5272 */
emilmont 1:fdd22bb7aa52 5273
emilmont 1:fdd22bb7aa52 5274 /**
emilmont 1:fdd22bb7aa52 5275 * @brief Floating-point Park transform
emilmont 1:fdd22bb7aa52 5276 * @param[in] Ialpha input two-phase vector coordinate alpha
emilmont 1:fdd22bb7aa52 5277 * @param[in] Ibeta input two-phase vector coordinate beta
emilmont 2:da51fb522205 5278 * @param[out] *pId points to output rotor reference frame d
emilmont 2:da51fb522205 5279 * @param[out] *pIq points to output rotor reference frame q
emilmont 1:fdd22bb7aa52 5280 * @param[in] sinVal sine value of rotation angle theta
emilmont 1:fdd22bb7aa52 5281 * @param[in] cosVal cosine value of rotation angle theta
emilmont 1:fdd22bb7aa52 5282 * @return none.
emilmont 1:fdd22bb7aa52 5283 *
emilmont 1:fdd22bb7aa52 5284 * The function implements the forward Park transform.
emilmont 1:fdd22bb7aa52 5285 *
emilmont 1:fdd22bb7aa52 5286 */
emilmont 1:fdd22bb7aa52 5287
mbed_official 3:7a284390b0ce 5288 static __INLINE void arm_park_f32(
emilmont 1:fdd22bb7aa52 5289 float32_t Ialpha,
emilmont 1:fdd22bb7aa52 5290 float32_t Ibeta,
emilmont 1:fdd22bb7aa52 5291 float32_t * pId,
emilmont 1:fdd22bb7aa52 5292 float32_t * pIq,
emilmont 1:fdd22bb7aa52 5293 float32_t sinVal,
emilmont 1:fdd22bb7aa52 5294 float32_t cosVal)
emilmont 1:fdd22bb7aa52 5295 {
emilmont 1:fdd22bb7aa52 5296 /* Calculate pId using the equation, pId = Ialpha * cosVal + Ibeta * sinVal */
emilmont 1:fdd22bb7aa52 5297 *pId = Ialpha * cosVal + Ibeta * sinVal;
emilmont 1:fdd22bb7aa52 5298
emilmont 1:fdd22bb7aa52 5299 /* Calculate pIq using the equation, pIq = - Ialpha * sinVal + Ibeta * cosVal */
emilmont 1:fdd22bb7aa52 5300 *pIq = -Ialpha * sinVal + Ibeta * cosVal;
emilmont 1:fdd22bb7aa52 5301
emilmont 1:fdd22bb7aa52 5302 }
emilmont 1:fdd22bb7aa52 5303
emilmont 1:fdd22bb7aa52 5304 /**
mbed_official 3:7a284390b0ce 5305 * @brief Park transform for Q31 version
emilmont 1:fdd22bb7aa52 5306 * @param[in] Ialpha input two-phase vector coordinate alpha
emilmont 1:fdd22bb7aa52 5307 * @param[in] Ibeta input two-phase vector coordinate beta
emilmont 1:fdd22bb7aa52 5308 * @param[out] *pId points to output rotor reference frame d
emilmont 1:fdd22bb7aa52 5309 * @param[out] *pIq points to output rotor reference frame q
emilmont 1:fdd22bb7aa52 5310 * @param[in] sinVal sine value of rotation angle theta
emilmont 1:fdd22bb7aa52 5311 * @param[in] cosVal cosine value of rotation angle theta
emilmont 1:fdd22bb7aa52 5312 * @return none.
emilmont 1:fdd22bb7aa52 5313 *
emilmont 1:fdd22bb7aa52 5314 * <b>Scaling and Overflow Behavior:</b>
emilmont 1:fdd22bb7aa52 5315 * \par
emilmont 1:fdd22bb7aa52 5316 * The function is implemented using an internal 32-bit accumulator.
emilmont 1:fdd22bb7aa52 5317 * The accumulator maintains 1.31 format by truncating lower 31 bits of the intermediate multiplication in 2.62 format.
emilmont 1:fdd22bb7aa52 5318 * There is saturation on the addition and subtraction, hence there is no risk of overflow.
emilmont 1:fdd22bb7aa52 5319 */
emilmont 1:fdd22bb7aa52 5320
emilmont 1:fdd22bb7aa52 5321
mbed_official 3:7a284390b0ce 5322 static __INLINE void arm_park_q31(
emilmont 1:fdd22bb7aa52 5323 q31_t Ialpha,
emilmont 1:fdd22bb7aa52 5324 q31_t Ibeta,
emilmont 1:fdd22bb7aa52 5325 q31_t * pId,
emilmont 1:fdd22bb7aa52 5326 q31_t * pIq,
emilmont 1:fdd22bb7aa52 5327 q31_t sinVal,
emilmont 1:fdd22bb7aa52 5328 q31_t cosVal)
emilmont 1:fdd22bb7aa52 5329 {
emilmont 1:fdd22bb7aa52 5330 q31_t product1, product2; /* Temporary variables used to store intermediate results */
emilmont 1:fdd22bb7aa52 5331 q31_t product3, product4; /* Temporary variables used to store intermediate results */
emilmont 1:fdd22bb7aa52 5332
emilmont 1:fdd22bb7aa52 5333 /* Intermediate product is calculated by (Ialpha * cosVal) */
emilmont 1:fdd22bb7aa52 5334 product1 = (q31_t) (((q63_t) (Ialpha) * (cosVal)) >> 31);
emilmont 1:fdd22bb7aa52 5335
emilmont 1:fdd22bb7aa52 5336 /* Intermediate product is calculated by (Ibeta * sinVal) */
emilmont 1:fdd22bb7aa52 5337 product2 = (q31_t) (((q63_t) (Ibeta) * (sinVal)) >> 31);
emilmont 1:fdd22bb7aa52 5338
emilmont 1:fdd22bb7aa52 5339
emilmont 1:fdd22bb7aa52 5340 /* Intermediate product is calculated by (Ialpha * sinVal) */
emilmont 1:fdd22bb7aa52 5341 product3 = (q31_t) (((q63_t) (Ialpha) * (sinVal)) >> 31);
emilmont 1:fdd22bb7aa52 5342
emilmont 1:fdd22bb7aa52 5343 /* Intermediate product is calculated by (Ibeta * cosVal) */
emilmont 1:fdd22bb7aa52 5344 product4 = (q31_t) (((q63_t) (Ibeta) * (cosVal)) >> 31);
emilmont 1:fdd22bb7aa52 5345
emilmont 1:fdd22bb7aa52 5346 /* Calculate pId by adding the two intermediate products 1 and 2 */
emilmont 1:fdd22bb7aa52 5347 *pId = __QADD(product1, product2);
emilmont 1:fdd22bb7aa52 5348
emilmont 1:fdd22bb7aa52 5349 /* Calculate pIq by subtracting the two intermediate products 3 from 4 */
emilmont 1:fdd22bb7aa52 5350 *pIq = __QSUB(product4, product3);
emilmont 1:fdd22bb7aa52 5351 }
emilmont 1:fdd22bb7aa52 5352
emilmont 1:fdd22bb7aa52 5353 /**
emilmont 1:fdd22bb7aa52 5354 * @} end of park group
emilmont 1:fdd22bb7aa52 5355 */
emilmont 1:fdd22bb7aa52 5356
emilmont 1:fdd22bb7aa52 5357 /**
emilmont 1:fdd22bb7aa52 5358 * @brief Converts the elements of the Q7 vector to floating-point vector.
emilmont 1:fdd22bb7aa52 5359 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 5360 * @param[out] *pDst is output pointer
emilmont 1:fdd22bb7aa52 5361 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 5362 * @return none.
emilmont 1:fdd22bb7aa52 5363 */
emilmont 1:fdd22bb7aa52 5364 void arm_q7_to_float(
emilmont 1:fdd22bb7aa52 5365 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 5366 float32_t * pDst,
emilmont 1:fdd22bb7aa52 5367 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 5368
emilmont 1:fdd22bb7aa52 5369
emilmont 1:fdd22bb7aa52 5370 /**
emilmont 1:fdd22bb7aa52 5371 * @ingroup groupController
emilmont 1:fdd22bb7aa52 5372 */
emilmont 1:fdd22bb7aa52 5373
emilmont 1:fdd22bb7aa52 5374 /**
emilmont 1:fdd22bb7aa52 5375 * @defgroup inv_park Vector Inverse Park transform
emilmont 1:fdd22bb7aa52 5376 * Inverse Park transform converts the input flux and torque components to two-coordinate vector.
emilmont 1:fdd22bb7aa52 5377 *
mbed_official 3:7a284390b0ce 5378 * The function operates on a single sample of data and each call to the function returns the processed output.
emilmont 1:fdd22bb7aa52 5379 * The library provides separate functions for Q31 and floating-point data types.
emilmont 1:fdd22bb7aa52 5380 * \par Algorithm
emilmont 1:fdd22bb7aa52 5381 * \image html parkInvFormula.gif
mbed_official 3:7a284390b0ce 5382 * where <code>pIalpha</code> and <code>pIbeta</code> are the stator vector components,
mbed_official 3:7a284390b0ce 5383 * <code>Id</code> and <code>Iq</code> are rotor vector components and <code>cosVal</code> and <code>sinVal</code> are the
emilmont 1:fdd22bb7aa52 5384 * cosine and sine values of theta (rotor flux position).
emilmont 1:fdd22bb7aa52 5385 * \par Fixed-Point Behavior
emilmont 1:fdd22bb7aa52 5386 * Care must be taken when using the Q31 version of the Park transform.
emilmont 1:fdd22bb7aa52 5387 * In particular, the overflow and saturation behavior of the accumulator used must be considered.
emilmont 1:fdd22bb7aa52 5388 * Refer to the function specific documentation below for usage guidelines.
emilmont 1:fdd22bb7aa52 5389 */
emilmont 1:fdd22bb7aa52 5390
emilmont 1:fdd22bb7aa52 5391 /**
emilmont 1:fdd22bb7aa52 5392 * @addtogroup inv_park
emilmont 1:fdd22bb7aa52 5393 * @{
emilmont 1:fdd22bb7aa52 5394 */
emilmont 1:fdd22bb7aa52 5395
emilmont 1:fdd22bb7aa52 5396 /**
emilmont 1:fdd22bb7aa52 5397 * @brief Floating-point Inverse Park transform
emilmont 1:fdd22bb7aa52 5398 * @param[in] Id input coordinate of rotor reference frame d
emilmont 1:fdd22bb7aa52 5399 * @param[in] Iq input coordinate of rotor reference frame q
emilmont 1:fdd22bb7aa52 5400 * @param[out] *pIalpha points to output two-phase orthogonal vector axis alpha
emilmont 1:fdd22bb7aa52 5401 * @param[out] *pIbeta points to output two-phase orthogonal vector axis beta
emilmont 1:fdd22bb7aa52 5402 * @param[in] sinVal sine value of rotation angle theta
emilmont 1:fdd22bb7aa52 5403 * @param[in] cosVal cosine value of rotation angle theta
emilmont 1:fdd22bb7aa52 5404 * @return none.
emilmont 1:fdd22bb7aa52 5405 */
emilmont 1:fdd22bb7aa52 5406
mbed_official 3:7a284390b0ce 5407 static __INLINE void arm_inv_park_f32(
emilmont 1:fdd22bb7aa52 5408 float32_t Id,
emilmont 1:fdd22bb7aa52 5409 float32_t Iq,
emilmont 1:fdd22bb7aa52 5410 float32_t * pIalpha,
emilmont 1:fdd22bb7aa52 5411 float32_t * pIbeta,
emilmont 1:fdd22bb7aa52 5412 float32_t sinVal,
emilmont 1:fdd22bb7aa52 5413 float32_t cosVal)
emilmont 1:fdd22bb7aa52 5414 {
emilmont 1:fdd22bb7aa52 5415 /* Calculate pIalpha using the equation, pIalpha = Id * cosVal - Iq * sinVal */
emilmont 1:fdd22bb7aa52 5416 *pIalpha = Id * cosVal - Iq * sinVal;
emilmont 1:fdd22bb7aa52 5417
emilmont 1:fdd22bb7aa52 5418 /* Calculate pIbeta using the equation, pIbeta = Id * sinVal + Iq * cosVal */
emilmont 1:fdd22bb7aa52 5419 *pIbeta = Id * sinVal + Iq * cosVal;
emilmont 1:fdd22bb7aa52 5420
emilmont 1:fdd22bb7aa52 5421 }
emilmont 1:fdd22bb7aa52 5422
emilmont 1:fdd22bb7aa52 5423
emilmont 1:fdd22bb7aa52 5424 /**
mbed_official 3:7a284390b0ce 5425 * @brief Inverse Park transform for Q31 version
emilmont 1:fdd22bb7aa52 5426 * @param[in] Id input coordinate of rotor reference frame d
emilmont 1:fdd22bb7aa52 5427 * @param[in] Iq input coordinate of rotor reference frame q
emilmont 1:fdd22bb7aa52 5428 * @param[out] *pIalpha points to output two-phase orthogonal vector axis alpha
emilmont 1:fdd22bb7aa52 5429 * @param[out] *pIbeta points to output two-phase orthogonal vector axis beta
emilmont 1:fdd22bb7aa52 5430 * @param[in] sinVal sine value of rotation angle theta
emilmont 1:fdd22bb7aa52 5431 * @param[in] cosVal cosine value of rotation angle theta
emilmont 1:fdd22bb7aa52 5432 * @return none.
emilmont 1:fdd22bb7aa52 5433 *
emilmont 1:fdd22bb7aa52 5434 * <b>Scaling and Overflow Behavior:</b>
emilmont 1:fdd22bb7aa52 5435 * \par
emilmont 1:fdd22bb7aa52 5436 * The function is implemented using an internal 32-bit accumulator.
emilmont 1:fdd22bb7aa52 5437 * The accumulator maintains 1.31 format by truncating lower 31 bits of the intermediate multiplication in 2.62 format.
emilmont 1:fdd22bb7aa52 5438 * There is saturation on the addition, hence there is no risk of overflow.
emilmont 1:fdd22bb7aa52 5439 */
emilmont 1:fdd22bb7aa52 5440
emilmont 1:fdd22bb7aa52 5441
mbed_official 3:7a284390b0ce 5442 static __INLINE void arm_inv_park_q31(
emilmont 1:fdd22bb7aa52 5443 q31_t Id,
emilmont 1:fdd22bb7aa52 5444 q31_t Iq,
emilmont 1:fdd22bb7aa52 5445 q31_t * pIalpha,
emilmont 1:fdd22bb7aa52 5446 q31_t * pIbeta,
emilmont 1:fdd22bb7aa52 5447 q31_t sinVal,
emilmont 1:fdd22bb7aa52 5448 q31_t cosVal)
emilmont 1:fdd22bb7aa52 5449 {
emilmont 1:fdd22bb7aa52 5450 q31_t product1, product2; /* Temporary variables used to store intermediate results */
emilmont 1:fdd22bb7aa52 5451 q31_t product3, product4; /* Temporary variables used to store intermediate results */
emilmont 1:fdd22bb7aa52 5452
emilmont 1:fdd22bb7aa52 5453 /* Intermediate product is calculated by (Id * cosVal) */
emilmont 1:fdd22bb7aa52 5454 product1 = (q31_t) (((q63_t) (Id) * (cosVal)) >> 31);
emilmont 1:fdd22bb7aa52 5455
emilmont 1:fdd22bb7aa52 5456 /* Intermediate product is calculated by (Iq * sinVal) */
emilmont 1:fdd22bb7aa52 5457 product2 = (q31_t) (((q63_t) (Iq) * (sinVal)) >> 31);
emilmont 1:fdd22bb7aa52 5458
emilmont 1:fdd22bb7aa52 5459
emilmont 1:fdd22bb7aa52 5460 /* Intermediate product is calculated by (Id * sinVal) */
emilmont 1:fdd22bb7aa52 5461 product3 = (q31_t) (((q63_t) (Id) * (sinVal)) >> 31);
emilmont 1:fdd22bb7aa52 5462
emilmont 1:fdd22bb7aa52 5463 /* Intermediate product is calculated by (Iq * cosVal) */
emilmont 1:fdd22bb7aa52 5464 product4 = (q31_t) (((q63_t) (Iq) * (cosVal)) >> 31);
emilmont 1:fdd22bb7aa52 5465
emilmont 1:fdd22bb7aa52 5466 /* Calculate pIalpha by using the two intermediate products 1 and 2 */
emilmont 1:fdd22bb7aa52 5467 *pIalpha = __QSUB(product1, product2);
emilmont 1:fdd22bb7aa52 5468
emilmont 1:fdd22bb7aa52 5469 /* Calculate pIbeta by using the two intermediate products 3 and 4 */
emilmont 1:fdd22bb7aa52 5470 *pIbeta = __QADD(product4, product3);
emilmont 1:fdd22bb7aa52 5471
emilmont 1:fdd22bb7aa52 5472 }
emilmont 1:fdd22bb7aa52 5473
emilmont 1:fdd22bb7aa52 5474 /**
emilmont 1:fdd22bb7aa52 5475 * @} end of Inverse park group
emilmont 1:fdd22bb7aa52 5476 */
emilmont 1:fdd22bb7aa52 5477
emilmont 1:fdd22bb7aa52 5478
emilmont 1:fdd22bb7aa52 5479 /**
emilmont 1:fdd22bb7aa52 5480 * @brief Converts the elements of the Q31 vector to floating-point vector.
emilmont 1:fdd22bb7aa52 5481 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 5482 * @param[out] *pDst is output pointer
emilmont 1:fdd22bb7aa52 5483 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 5484 * @return none.
emilmont 1:fdd22bb7aa52 5485 */
emilmont 1:fdd22bb7aa52 5486 void arm_q31_to_float(
emilmont 1:fdd22bb7aa52 5487 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 5488 float32_t * pDst,
emilmont 1:fdd22bb7aa52 5489 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 5490
emilmont 1:fdd22bb7aa52 5491 /**
emilmont 1:fdd22bb7aa52 5492 * @ingroup groupInterpolation
emilmont 1:fdd22bb7aa52 5493 */
emilmont 1:fdd22bb7aa52 5494
emilmont 1:fdd22bb7aa52 5495 /**
emilmont 1:fdd22bb7aa52 5496 * @defgroup LinearInterpolate Linear Interpolation
emilmont 1:fdd22bb7aa52 5497 *
emilmont 1:fdd22bb7aa52 5498 * Linear interpolation is a method of curve fitting using linear polynomials.
emilmont 1:fdd22bb7aa52 5499 * Linear interpolation works by effectively drawing a straight line between two neighboring samples and returning the appropriate point along that line
emilmont 1:fdd22bb7aa52 5500 *
mbed_official 3:7a284390b0ce 5501 * \par
emilmont 1:fdd22bb7aa52 5502 * \image html LinearInterp.gif "Linear interpolation"
emilmont 1:fdd22bb7aa52 5503 *
emilmont 1:fdd22bb7aa52 5504 * \par
emilmont 1:fdd22bb7aa52 5505 * A Linear Interpolate function calculates an output value(y), for the input(x)
emilmont 1:fdd22bb7aa52 5506 * using linear interpolation of the input values x0, x1( nearest input values) and the output values y0 and y1(nearest output values)
emilmont 1:fdd22bb7aa52 5507 *
emilmont 1:fdd22bb7aa52 5508 * \par Algorithm:
emilmont 1:fdd22bb7aa52 5509 * <pre>
emilmont 1:fdd22bb7aa52 5510 * y = y0 + (x - x0) * ((y1 - y0)/(x1-x0))
emilmont 1:fdd22bb7aa52 5511 * where x0, x1 are nearest values of input x
emilmont 1:fdd22bb7aa52 5512 * y0, y1 are nearest values to output y
emilmont 1:fdd22bb7aa52 5513 * </pre>
emilmont 1:fdd22bb7aa52 5514 *
emilmont 1:fdd22bb7aa52 5515 * \par
emilmont 1:fdd22bb7aa52 5516 * This set of functions implements Linear interpolation process
emilmont 1:fdd22bb7aa52 5517 * for Q7, Q15, Q31, and floating-point data types. The functions operate on a single
emilmont 1:fdd22bb7aa52 5518 * sample of data and each call to the function returns a single processed value.
emilmont 1:fdd22bb7aa52 5519 * <code>S</code> points to an instance of the Linear Interpolate function data structure.
emilmont 1:fdd22bb7aa52 5520 * <code>x</code> is the input sample value. The functions returns the output value.
mbed_official 3:7a284390b0ce 5521 *
emilmont 1:fdd22bb7aa52 5522 * \par
mbed_official 3:7a284390b0ce 5523 * if x is outside of the table boundary, Linear interpolation returns first value of the table
mbed_official 3:7a284390b0ce 5524 * if x is below input range and returns last value of table if x is above range.
emilmont 1:fdd22bb7aa52 5525 */
emilmont 1:fdd22bb7aa52 5526
emilmont 1:fdd22bb7aa52 5527 /**
emilmont 1:fdd22bb7aa52 5528 * @addtogroup LinearInterpolate
emilmont 1:fdd22bb7aa52 5529 * @{
emilmont 1:fdd22bb7aa52 5530 */
emilmont 1:fdd22bb7aa52 5531
emilmont 1:fdd22bb7aa52 5532 /**
emilmont 1:fdd22bb7aa52 5533 * @brief Process function for the floating-point Linear Interpolation Function.
emilmont 1:fdd22bb7aa52 5534 * @param[in,out] *S is an instance of the floating-point Linear Interpolation structure
emilmont 1:fdd22bb7aa52 5535 * @param[in] x input sample to process
emilmont 1:fdd22bb7aa52 5536 * @return y processed output sample.
emilmont 1:fdd22bb7aa52 5537 *
emilmont 1:fdd22bb7aa52 5538 */
emilmont 1:fdd22bb7aa52 5539
mbed_official 3:7a284390b0ce 5540 static __INLINE float32_t arm_linear_interp_f32(
emilmont 1:fdd22bb7aa52 5541 arm_linear_interp_instance_f32 * S,
emilmont 1:fdd22bb7aa52 5542 float32_t x)
emilmont 1:fdd22bb7aa52 5543 {
emilmont 1:fdd22bb7aa52 5544
emilmont 1:fdd22bb7aa52 5545 float32_t y;
emilmont 1:fdd22bb7aa52 5546 float32_t x0, x1; /* Nearest input values */
emilmont 1:fdd22bb7aa52 5547 float32_t y0, y1; /* Nearest output values */
emilmont 1:fdd22bb7aa52 5548 float32_t xSpacing = S->xSpacing; /* spacing between input values */
emilmont 1:fdd22bb7aa52 5549 int32_t i; /* Index variable */
emilmont 1:fdd22bb7aa52 5550 float32_t *pYData = S->pYData; /* pointer to output table */
emilmont 1:fdd22bb7aa52 5551
emilmont 1:fdd22bb7aa52 5552 /* Calculation of index */
mbed_official 3:7a284390b0ce 5553 i = (int32_t) ((x - S->x1) / xSpacing);
emilmont 1:fdd22bb7aa52 5554
emilmont 1:fdd22bb7aa52 5555 if(i < 0)
emilmont 1:fdd22bb7aa52 5556 {
emilmont 1:fdd22bb7aa52 5557 /* Iniatilize output for below specified range as least output value of table */
emilmont 1:fdd22bb7aa52 5558 y = pYData[0];
emilmont 1:fdd22bb7aa52 5559 }
mbed_official 3:7a284390b0ce 5560 else if((uint32_t)i >= S->nValues)
emilmont 1:fdd22bb7aa52 5561 {
emilmont 1:fdd22bb7aa52 5562 /* Iniatilize output for above specified range as last output value of table */
emilmont 1:fdd22bb7aa52 5563 y = pYData[S->nValues - 1];
emilmont 1:fdd22bb7aa52 5564 }
emilmont 1:fdd22bb7aa52 5565 else
emilmont 1:fdd22bb7aa52 5566 {
emilmont 1:fdd22bb7aa52 5567 /* Calculation of nearest input values */
emilmont 1:fdd22bb7aa52 5568 x0 = S->x1 + i * xSpacing;
emilmont 1:fdd22bb7aa52 5569 x1 = S->x1 + (i + 1) * xSpacing;
emilmont 1:fdd22bb7aa52 5570
emilmont 1:fdd22bb7aa52 5571 /* Read of nearest output values */
emilmont 1:fdd22bb7aa52 5572 y0 = pYData[i];
emilmont 1:fdd22bb7aa52 5573 y1 = pYData[i + 1];
emilmont 1:fdd22bb7aa52 5574
emilmont 1:fdd22bb7aa52 5575 /* Calculation of output */
emilmont 1:fdd22bb7aa52 5576 y = y0 + (x - x0) * ((y1 - y0) / (x1 - x0));
emilmont 1:fdd22bb7aa52 5577
emilmont 1:fdd22bb7aa52 5578 }
emilmont 1:fdd22bb7aa52 5579
emilmont 1:fdd22bb7aa52 5580 /* returns output value */
emilmont 1:fdd22bb7aa52 5581 return (y);
emilmont 1:fdd22bb7aa52 5582 }
emilmont 1:fdd22bb7aa52 5583
emilmont 1:fdd22bb7aa52 5584 /**
emilmont 1:fdd22bb7aa52 5585 *
emilmont 1:fdd22bb7aa52 5586 * @brief Process function for the Q31 Linear Interpolation Function.
emilmont 1:fdd22bb7aa52 5587 * @param[in] *pYData pointer to Q31 Linear Interpolation table
emilmont 1:fdd22bb7aa52 5588 * @param[in] x input sample to process
emilmont 1:fdd22bb7aa52 5589 * @param[in] nValues number of table values
emilmont 1:fdd22bb7aa52 5590 * @return y processed output sample.
emilmont 1:fdd22bb7aa52 5591 *
emilmont 1:fdd22bb7aa52 5592 * \par
emilmont 1:fdd22bb7aa52 5593 * Input sample <code>x</code> is in 12.20 format which contains 12 bits for table index and 20 bits for fractional part.
emilmont 1:fdd22bb7aa52 5594 * This function can support maximum of table size 2^12.
emilmont 1:fdd22bb7aa52 5595 *
emilmont 1:fdd22bb7aa52 5596 */
emilmont 1:fdd22bb7aa52 5597
emilmont 1:fdd22bb7aa52 5598
mbed_official 3:7a284390b0ce 5599 static __INLINE q31_t arm_linear_interp_q31(
emilmont 1:fdd22bb7aa52 5600 q31_t * pYData,
emilmont 1:fdd22bb7aa52 5601 q31_t x,
emilmont 1:fdd22bb7aa52 5602 uint32_t nValues)
emilmont 1:fdd22bb7aa52 5603 {
emilmont 1:fdd22bb7aa52 5604 q31_t y; /* output */
emilmont 1:fdd22bb7aa52 5605 q31_t y0, y1; /* Nearest output values */
emilmont 1:fdd22bb7aa52 5606 q31_t fract; /* fractional part */
emilmont 1:fdd22bb7aa52 5607 int32_t index; /* Index to read nearest output values */
emilmont 1:fdd22bb7aa52 5608
emilmont 1:fdd22bb7aa52 5609 /* Input is in 12.20 format */
emilmont 1:fdd22bb7aa52 5610 /* 12 bits for the table index */
emilmont 1:fdd22bb7aa52 5611 /* Index value calculation */
emilmont 1:fdd22bb7aa52 5612 index = ((x & 0xFFF00000) >> 20);
emilmont 1:fdd22bb7aa52 5613
mbed_official 3:7a284390b0ce 5614 if(index >= (int32_t)(nValues - 1))
emilmont 1:fdd22bb7aa52 5615 {
emilmont 1:fdd22bb7aa52 5616 return (pYData[nValues - 1]);
emilmont 1:fdd22bb7aa52 5617 }
emilmont 1:fdd22bb7aa52 5618 else if(index < 0)
emilmont 1:fdd22bb7aa52 5619 {
emilmont 1:fdd22bb7aa52 5620 return (pYData[0]);
emilmont 1:fdd22bb7aa52 5621 }
emilmont 1:fdd22bb7aa52 5622 else
emilmont 1:fdd22bb7aa52 5623 {
emilmont 1:fdd22bb7aa52 5624
emilmont 1:fdd22bb7aa52 5625 /* 20 bits for the fractional part */
emilmont 1:fdd22bb7aa52 5626 /* shift left by 11 to keep fract in 1.31 format */
emilmont 1:fdd22bb7aa52 5627 fract = (x & 0x000FFFFF) << 11;
emilmont 1:fdd22bb7aa52 5628
emilmont 1:fdd22bb7aa52 5629 /* Read two nearest output values from the index in 1.31(q31) format */
emilmont 1:fdd22bb7aa52 5630 y0 = pYData[index];
emilmont 1:fdd22bb7aa52 5631 y1 = pYData[index + 1u];
emilmont 1:fdd22bb7aa52 5632
emilmont 1:fdd22bb7aa52 5633 /* Calculation of y0 * (1-fract) and y is in 2.30 format */
emilmont 1:fdd22bb7aa52 5634 y = ((q31_t) ((q63_t) y0 * (0x7FFFFFFF - fract) >> 32));
emilmont 1:fdd22bb7aa52 5635
emilmont 1:fdd22bb7aa52 5636 /* Calculation of y0 * (1-fract) + y1 *fract and y is in 2.30 format */
emilmont 1:fdd22bb7aa52 5637 y += ((q31_t) (((q63_t) y1 * fract) >> 32));
emilmont 1:fdd22bb7aa52 5638
emilmont 1:fdd22bb7aa52 5639 /* Convert y to 1.31 format */
emilmont 1:fdd22bb7aa52 5640 return (y << 1u);
emilmont 1:fdd22bb7aa52 5641
emilmont 1:fdd22bb7aa52 5642 }
emilmont 1:fdd22bb7aa52 5643
emilmont 1:fdd22bb7aa52 5644 }
emilmont 1:fdd22bb7aa52 5645
emilmont 1:fdd22bb7aa52 5646 /**
emilmont 1:fdd22bb7aa52 5647 *
emilmont 1:fdd22bb7aa52 5648 * @brief Process function for the Q15 Linear Interpolation Function.
emilmont 1:fdd22bb7aa52 5649 * @param[in] *pYData pointer to Q15 Linear Interpolation table
emilmont 1:fdd22bb7aa52 5650 * @param[in] x input sample to process
emilmont 1:fdd22bb7aa52 5651 * @param[in] nValues number of table values
emilmont 1:fdd22bb7aa52 5652 * @return y processed output sample.
emilmont 1:fdd22bb7aa52 5653 *
emilmont 1:fdd22bb7aa52 5654 * \par
emilmont 1:fdd22bb7aa52 5655 * Input sample <code>x</code> is in 12.20 format which contains 12 bits for table index and 20 bits for fractional part.
mbed_official 3:7a284390b0ce 5656 * This function can support maximum of table size 2^12.
emilmont 1:fdd22bb7aa52 5657 *
emilmont 1:fdd22bb7aa52 5658 */
emilmont 1:fdd22bb7aa52 5659
emilmont 1:fdd22bb7aa52 5660
mbed_official 3:7a284390b0ce 5661 static __INLINE q15_t arm_linear_interp_q15(
emilmont 1:fdd22bb7aa52 5662 q15_t * pYData,
emilmont 1:fdd22bb7aa52 5663 q31_t x,
emilmont 1:fdd22bb7aa52 5664 uint32_t nValues)
emilmont 1:fdd22bb7aa52 5665 {
emilmont 1:fdd22bb7aa52 5666 q63_t y; /* output */
emilmont 1:fdd22bb7aa52 5667 q15_t y0, y1; /* Nearest output values */
emilmont 1:fdd22bb7aa52 5668 q31_t fract; /* fractional part */
emilmont 1:fdd22bb7aa52 5669 int32_t index; /* Index to read nearest output values */
emilmont 1:fdd22bb7aa52 5670
emilmont 1:fdd22bb7aa52 5671 /* Input is in 12.20 format */
emilmont 1:fdd22bb7aa52 5672 /* 12 bits for the table index */
emilmont 1:fdd22bb7aa52 5673 /* Index value calculation */
emilmont 1:fdd22bb7aa52 5674 index = ((x & 0xFFF00000) >> 20u);
emilmont 1:fdd22bb7aa52 5675
mbed_official 3:7a284390b0ce 5676 if(index >= (int32_t)(nValues - 1))
emilmont 1:fdd22bb7aa52 5677 {
emilmont 1:fdd22bb7aa52 5678 return (pYData[nValues - 1]);
emilmont 1:fdd22bb7aa52 5679 }
emilmont 1:fdd22bb7aa52 5680 else if(index < 0)
emilmont 1:fdd22bb7aa52 5681 {
emilmont 1:fdd22bb7aa52 5682 return (pYData[0]);
emilmont 1:fdd22bb7aa52 5683 }
emilmont 1:fdd22bb7aa52 5684 else
emilmont 1:fdd22bb7aa52 5685 {
emilmont 1:fdd22bb7aa52 5686 /* 20 bits for the fractional part */
emilmont 1:fdd22bb7aa52 5687 /* fract is in 12.20 format */
emilmont 1:fdd22bb7aa52 5688 fract = (x & 0x000FFFFF);
emilmont 1:fdd22bb7aa52 5689
emilmont 1:fdd22bb7aa52 5690 /* Read two nearest output values from the index */
emilmont 1:fdd22bb7aa52 5691 y0 = pYData[index];
emilmont 1:fdd22bb7aa52 5692 y1 = pYData[index + 1u];
emilmont 1:fdd22bb7aa52 5693
emilmont 1:fdd22bb7aa52 5694 /* Calculation of y0 * (1-fract) and y is in 13.35 format */
emilmont 1:fdd22bb7aa52 5695 y = ((q63_t) y0 * (0xFFFFF - fract));
emilmont 1:fdd22bb7aa52 5696
emilmont 1:fdd22bb7aa52 5697 /* Calculation of (y0 * (1-fract) + y1 * fract) and y is in 13.35 format */
emilmont 1:fdd22bb7aa52 5698 y += ((q63_t) y1 * (fract));
emilmont 1:fdd22bb7aa52 5699
emilmont 1:fdd22bb7aa52 5700 /* convert y to 1.15 format */
emilmont 1:fdd22bb7aa52 5701 return (y >> 20);
emilmont 1:fdd22bb7aa52 5702 }
emilmont 1:fdd22bb7aa52 5703
emilmont 1:fdd22bb7aa52 5704
emilmont 1:fdd22bb7aa52 5705 }
emilmont 1:fdd22bb7aa52 5706
emilmont 1:fdd22bb7aa52 5707 /**
emilmont 1:fdd22bb7aa52 5708 *
emilmont 1:fdd22bb7aa52 5709 * @brief Process function for the Q7 Linear Interpolation Function.
emilmont 1:fdd22bb7aa52 5710 * @param[in] *pYData pointer to Q7 Linear Interpolation table
emilmont 1:fdd22bb7aa52 5711 * @param[in] x input sample to process
emilmont 1:fdd22bb7aa52 5712 * @param[in] nValues number of table values
emilmont 1:fdd22bb7aa52 5713 * @return y processed output sample.
emilmont 1:fdd22bb7aa52 5714 *
emilmont 1:fdd22bb7aa52 5715 * \par
emilmont 1:fdd22bb7aa52 5716 * Input sample <code>x</code> is in 12.20 format which contains 12 bits for table index and 20 bits for fractional part.
emilmont 1:fdd22bb7aa52 5717 * This function can support maximum of table size 2^12.
emilmont 1:fdd22bb7aa52 5718 */
emilmont 1:fdd22bb7aa52 5719
emilmont 1:fdd22bb7aa52 5720
mbed_official 3:7a284390b0ce 5721 static __INLINE q7_t arm_linear_interp_q7(
emilmont 1:fdd22bb7aa52 5722 q7_t * pYData,
emilmont 1:fdd22bb7aa52 5723 q31_t x,
emilmont 1:fdd22bb7aa52 5724 uint32_t nValues)
emilmont 1:fdd22bb7aa52 5725 {
emilmont 1:fdd22bb7aa52 5726 q31_t y; /* output */
emilmont 1:fdd22bb7aa52 5727 q7_t y0, y1; /* Nearest output values */
emilmont 1:fdd22bb7aa52 5728 q31_t fract; /* fractional part */
mbed_official 3:7a284390b0ce 5729 uint32_t index; /* Index to read nearest output values */
emilmont 1:fdd22bb7aa52 5730
emilmont 1:fdd22bb7aa52 5731 /* Input is in 12.20 format */
emilmont 1:fdd22bb7aa52 5732 /* 12 bits for the table index */
emilmont 1:fdd22bb7aa52 5733 /* Index value calculation */
mbed_official 3:7a284390b0ce 5734 if (x < 0)
mbed_official 3:7a284390b0ce 5735 {
mbed_official 3:7a284390b0ce 5736 return (pYData[0]);
mbed_official 3:7a284390b0ce 5737 }
mbed_official 3:7a284390b0ce 5738 index = (x >> 20) & 0xfff;
emilmont 1:fdd22bb7aa52 5739
emilmont 1:fdd22bb7aa52 5740
emilmont 1:fdd22bb7aa52 5741 if(index >= (nValues - 1))
emilmont 1:fdd22bb7aa52 5742 {
emilmont 1:fdd22bb7aa52 5743 return (pYData[nValues - 1]);
emilmont 1:fdd22bb7aa52 5744 }
emilmont 1:fdd22bb7aa52 5745 else
emilmont 1:fdd22bb7aa52 5746 {
emilmont 1:fdd22bb7aa52 5747
emilmont 1:fdd22bb7aa52 5748 /* 20 bits for the fractional part */
emilmont 1:fdd22bb7aa52 5749 /* fract is in 12.20 format */
emilmont 1:fdd22bb7aa52 5750 fract = (x & 0x000FFFFF);
emilmont 1:fdd22bb7aa52 5751
emilmont 1:fdd22bb7aa52 5752 /* Read two nearest output values from the index and are in 1.7(q7) format */
emilmont 1:fdd22bb7aa52 5753 y0 = pYData[index];
emilmont 1:fdd22bb7aa52 5754 y1 = pYData[index + 1u];
emilmont 1:fdd22bb7aa52 5755
emilmont 1:fdd22bb7aa52 5756 /* Calculation of y0 * (1-fract ) and y is in 13.27(q27) format */
emilmont 1:fdd22bb7aa52 5757 y = ((y0 * (0xFFFFF - fract)));
emilmont 1:fdd22bb7aa52 5758
emilmont 1:fdd22bb7aa52 5759 /* Calculation of y1 * fract + y0 * (1-fract) and y is in 13.27(q27) format */
emilmont 1:fdd22bb7aa52 5760 y += (y1 * fract);
emilmont 1:fdd22bb7aa52 5761
emilmont 1:fdd22bb7aa52 5762 /* convert y to 1.7(q7) format */
emilmont 1:fdd22bb7aa52 5763 return (y >> 20u);
emilmont 1:fdd22bb7aa52 5764
emilmont 1:fdd22bb7aa52 5765 }
emilmont 1:fdd22bb7aa52 5766
emilmont 1:fdd22bb7aa52 5767 }
emilmont 1:fdd22bb7aa52 5768 /**
emilmont 1:fdd22bb7aa52 5769 * @} end of LinearInterpolate group
emilmont 1:fdd22bb7aa52 5770 */
emilmont 1:fdd22bb7aa52 5771
emilmont 1:fdd22bb7aa52 5772 /**
emilmont 1:fdd22bb7aa52 5773 * @brief Fast approximation to the trigonometric sine function for floating-point data.
emilmont 1:fdd22bb7aa52 5774 * @param[in] x input value in radians.
emilmont 1:fdd22bb7aa52 5775 * @return sin(x).
emilmont 1:fdd22bb7aa52 5776 */
emilmont 1:fdd22bb7aa52 5777
emilmont 1:fdd22bb7aa52 5778 float32_t arm_sin_f32(
emilmont 1:fdd22bb7aa52 5779 float32_t x);
emilmont 1:fdd22bb7aa52 5780
emilmont 1:fdd22bb7aa52 5781 /**
emilmont 1:fdd22bb7aa52 5782 * @brief Fast approximation to the trigonometric sine function for Q31 data.
emilmont 1:fdd22bb7aa52 5783 * @param[in] x Scaled input value in radians.
emilmont 1:fdd22bb7aa52 5784 * @return sin(x).
emilmont 1:fdd22bb7aa52 5785 */
emilmont 1:fdd22bb7aa52 5786
emilmont 1:fdd22bb7aa52 5787 q31_t arm_sin_q31(
emilmont 1:fdd22bb7aa52 5788 q31_t x);
emilmont 1:fdd22bb7aa52 5789
emilmont 1:fdd22bb7aa52 5790 /**
emilmont 1:fdd22bb7aa52 5791 * @brief Fast approximation to the trigonometric sine function for Q15 data.
emilmont 1:fdd22bb7aa52 5792 * @param[in] x Scaled input value in radians.
emilmont 1:fdd22bb7aa52 5793 * @return sin(x).
emilmont 1:fdd22bb7aa52 5794 */
emilmont 1:fdd22bb7aa52 5795
emilmont 1:fdd22bb7aa52 5796 q15_t arm_sin_q15(
emilmont 1:fdd22bb7aa52 5797 q15_t x);
emilmont 1:fdd22bb7aa52 5798
emilmont 1:fdd22bb7aa52 5799 /**
emilmont 1:fdd22bb7aa52 5800 * @brief Fast approximation to the trigonometric cosine function for floating-point data.
emilmont 1:fdd22bb7aa52 5801 * @param[in] x input value in radians.
emilmont 1:fdd22bb7aa52 5802 * @return cos(x).
emilmont 1:fdd22bb7aa52 5803 */
emilmont 1:fdd22bb7aa52 5804
emilmont 1:fdd22bb7aa52 5805 float32_t arm_cos_f32(
emilmont 1:fdd22bb7aa52 5806 float32_t x);
emilmont 1:fdd22bb7aa52 5807
emilmont 1:fdd22bb7aa52 5808 /**
emilmont 1:fdd22bb7aa52 5809 * @brief Fast approximation to the trigonometric cosine function for Q31 data.
emilmont 1:fdd22bb7aa52 5810 * @param[in] x Scaled input value in radians.
emilmont 1:fdd22bb7aa52 5811 * @return cos(x).
emilmont 1:fdd22bb7aa52 5812 */
emilmont 1:fdd22bb7aa52 5813
emilmont 1:fdd22bb7aa52 5814 q31_t arm_cos_q31(
emilmont 1:fdd22bb7aa52 5815 q31_t x);
emilmont 1:fdd22bb7aa52 5816
emilmont 1:fdd22bb7aa52 5817 /**
emilmont 1:fdd22bb7aa52 5818 * @brief Fast approximation to the trigonometric cosine function for Q15 data.
emilmont 1:fdd22bb7aa52 5819 * @param[in] x Scaled input value in radians.
emilmont 1:fdd22bb7aa52 5820 * @return cos(x).
emilmont 1:fdd22bb7aa52 5821 */
emilmont 1:fdd22bb7aa52 5822
emilmont 1:fdd22bb7aa52 5823 q15_t arm_cos_q15(
emilmont 1:fdd22bb7aa52 5824 q15_t x);
emilmont 1:fdd22bb7aa52 5825
emilmont 1:fdd22bb7aa52 5826
emilmont 1:fdd22bb7aa52 5827 /**
emilmont 1:fdd22bb7aa52 5828 * @ingroup groupFastMath
emilmont 1:fdd22bb7aa52 5829 */
emilmont 1:fdd22bb7aa52 5830
emilmont 1:fdd22bb7aa52 5831
emilmont 1:fdd22bb7aa52 5832 /**
emilmont 1:fdd22bb7aa52 5833 * @defgroup SQRT Square Root
emilmont 1:fdd22bb7aa52 5834 *
emilmont 1:fdd22bb7aa52 5835 * Computes the square root of a number.
mbed_official 3:7a284390b0ce 5836 * There are separate functions for Q15, Q31, and floating-point data types.
emilmont 1:fdd22bb7aa52 5837 * The square root function is computed using the Newton-Raphson algorithm.
emilmont 1:fdd22bb7aa52 5838 * This is an iterative algorithm of the form:
emilmont 1:fdd22bb7aa52 5839 * <pre>
emilmont 1:fdd22bb7aa52 5840 * x1 = x0 - f(x0)/f'(x0)
emilmont 1:fdd22bb7aa52 5841 * </pre>
emilmont 1:fdd22bb7aa52 5842 * where <code>x1</code> is the current estimate,
mbed_official 3:7a284390b0ce 5843 * <code>x0</code> is the previous estimate, and
emilmont 1:fdd22bb7aa52 5844 * <code>f'(x0)</code> is the derivative of <code>f()</code> evaluated at <code>x0</code>.
emilmont 1:fdd22bb7aa52 5845 * For the square root function, the algorithm reduces to:
emilmont 1:fdd22bb7aa52 5846 * <pre>
emilmont 1:fdd22bb7aa52 5847 * x0 = in/2 [initial guess]
emilmont 1:fdd22bb7aa52 5848 * x1 = 1/2 * ( x0 + in / x0) [each iteration]
emilmont 1:fdd22bb7aa52 5849 * </pre>
emilmont 1:fdd22bb7aa52 5850 */
emilmont 1:fdd22bb7aa52 5851
emilmont 1:fdd22bb7aa52 5852
emilmont 1:fdd22bb7aa52 5853 /**
emilmont 1:fdd22bb7aa52 5854 * @addtogroup SQRT
emilmont 1:fdd22bb7aa52 5855 * @{
emilmont 1:fdd22bb7aa52 5856 */
emilmont 1:fdd22bb7aa52 5857
emilmont 1:fdd22bb7aa52 5858 /**
emilmont 1:fdd22bb7aa52 5859 * @brief Floating-point square root function.
emilmont 1:fdd22bb7aa52 5860 * @param[in] in input value.
emilmont 1:fdd22bb7aa52 5861 * @param[out] *pOut square root of input value.
emilmont 1:fdd22bb7aa52 5862 * @return The function returns ARM_MATH_SUCCESS if input value is positive value or ARM_MATH_ARGUMENT_ERROR if
emilmont 1:fdd22bb7aa52 5863 * <code>in</code> is negative value and returns zero output for negative values.
emilmont 1:fdd22bb7aa52 5864 */
emilmont 1:fdd22bb7aa52 5865
mbed_official 3:7a284390b0ce 5866 static __INLINE arm_status arm_sqrt_f32(
emilmont 1:fdd22bb7aa52 5867 float32_t in,
emilmont 1:fdd22bb7aa52 5868 float32_t * pOut)
emilmont 1:fdd22bb7aa52 5869 {
emilmont 1:fdd22bb7aa52 5870 if(in > 0)
emilmont 1:fdd22bb7aa52 5871 {
emilmont 1:fdd22bb7aa52 5872
mbed_official 3:7a284390b0ce 5873 // #if __FPU_USED
mbed_official 3:7a284390b0ce 5874 #if (__FPU_USED == 1) && defined ( __CC_ARM )
mbed_official 3:7a284390b0ce 5875 *pOut = __sqrtf(in);
mbed_official 3:7a284390b0ce 5876 #else
mbed_official 3:7a284390b0ce 5877 *pOut = sqrtf(in);
mbed_official 3:7a284390b0ce 5878 #endif
emilmont 1:fdd22bb7aa52 5879
emilmont 1:fdd22bb7aa52 5880 return (ARM_MATH_SUCCESS);
emilmont 1:fdd22bb7aa52 5881 }
emilmont 1:fdd22bb7aa52 5882 else
emilmont 1:fdd22bb7aa52 5883 {
emilmont 1:fdd22bb7aa52 5884 *pOut = 0.0f;
emilmont 1:fdd22bb7aa52 5885 return (ARM_MATH_ARGUMENT_ERROR);
emilmont 1:fdd22bb7aa52 5886 }
emilmont 1:fdd22bb7aa52 5887
emilmont 1:fdd22bb7aa52 5888 }
emilmont 1:fdd22bb7aa52 5889
emilmont 1:fdd22bb7aa52 5890
emilmont 1:fdd22bb7aa52 5891 /**
emilmont 1:fdd22bb7aa52 5892 * @brief Q31 square root function.
emilmont 1:fdd22bb7aa52 5893 * @param[in] in input value. The range of the input value is [0 +1) or 0x00000000 to 0x7FFFFFFF.
emilmont 1:fdd22bb7aa52 5894 * @param[out] *pOut square root of input value.
emilmont 1:fdd22bb7aa52 5895 * @return The function returns ARM_MATH_SUCCESS if input value is positive value or ARM_MATH_ARGUMENT_ERROR if
emilmont 1:fdd22bb7aa52 5896 * <code>in</code> is negative value and returns zero output for negative values.
emilmont 1:fdd22bb7aa52 5897 */
emilmont 1:fdd22bb7aa52 5898 arm_status arm_sqrt_q31(
emilmont 1:fdd22bb7aa52 5899 q31_t in,
emilmont 1:fdd22bb7aa52 5900 q31_t * pOut);
emilmont 1:fdd22bb7aa52 5901
emilmont 1:fdd22bb7aa52 5902 /**
emilmont 1:fdd22bb7aa52 5903 * @brief Q15 square root function.
emilmont 1:fdd22bb7aa52 5904 * @param[in] in input value. The range of the input value is [0 +1) or 0x0000 to 0x7FFF.
emilmont 1:fdd22bb7aa52 5905 * @param[out] *pOut square root of input value.
emilmont 1:fdd22bb7aa52 5906 * @return The function returns ARM_MATH_SUCCESS if input value is positive value or ARM_MATH_ARGUMENT_ERROR if
emilmont 1:fdd22bb7aa52 5907 * <code>in</code> is negative value and returns zero output for negative values.
emilmont 1:fdd22bb7aa52 5908 */
emilmont 1:fdd22bb7aa52 5909 arm_status arm_sqrt_q15(
emilmont 1:fdd22bb7aa52 5910 q15_t in,
emilmont 1:fdd22bb7aa52 5911 q15_t * pOut);
emilmont 1:fdd22bb7aa52 5912
emilmont 1:fdd22bb7aa52 5913 /**
emilmont 1:fdd22bb7aa52 5914 * @} end of SQRT group
emilmont 1:fdd22bb7aa52 5915 */
emilmont 1:fdd22bb7aa52 5916
emilmont 1:fdd22bb7aa52 5917
emilmont 1:fdd22bb7aa52 5918
emilmont 1:fdd22bb7aa52 5919
emilmont 1:fdd22bb7aa52 5920
emilmont 1:fdd22bb7aa52 5921
emilmont 1:fdd22bb7aa52 5922 /**
emilmont 1:fdd22bb7aa52 5923 * @brief floating-point Circular write function.
emilmont 1:fdd22bb7aa52 5924 */
emilmont 1:fdd22bb7aa52 5925
mbed_official 3:7a284390b0ce 5926 static __INLINE void arm_circularWrite_f32(
emilmont 1:fdd22bb7aa52 5927 int32_t * circBuffer,
emilmont 1:fdd22bb7aa52 5928 int32_t L,
emilmont 1:fdd22bb7aa52 5929 uint16_t * writeOffset,
emilmont 1:fdd22bb7aa52 5930 int32_t bufferInc,
emilmont 1:fdd22bb7aa52 5931 const int32_t * src,
emilmont 1:fdd22bb7aa52 5932 int32_t srcInc,
emilmont 1:fdd22bb7aa52 5933 uint32_t blockSize)
emilmont 1:fdd22bb7aa52 5934 {
emilmont 1:fdd22bb7aa52 5935 uint32_t i = 0u;
emilmont 1:fdd22bb7aa52 5936 int32_t wOffset;
emilmont 1:fdd22bb7aa52 5937
emilmont 1:fdd22bb7aa52 5938 /* Copy the value of Index pointer that points
emilmont 1:fdd22bb7aa52 5939 * to the current location where the input samples to be copied */
emilmont 1:fdd22bb7aa52 5940 wOffset = *writeOffset;
emilmont 1:fdd22bb7aa52 5941
emilmont 1:fdd22bb7aa52 5942 /* Loop over the blockSize */
emilmont 1:fdd22bb7aa52 5943 i = blockSize;
emilmont 1:fdd22bb7aa52 5944
emilmont 1:fdd22bb7aa52 5945 while(i > 0u)
emilmont 1:fdd22bb7aa52 5946 {
emilmont 1:fdd22bb7aa52 5947 /* copy the input sample to the circular buffer */
emilmont 1:fdd22bb7aa52 5948 circBuffer[wOffset] = *src;
emilmont 1:fdd22bb7aa52 5949
emilmont 1:fdd22bb7aa52 5950 /* Update the input pointer */
emilmont 1:fdd22bb7aa52 5951 src += srcInc;
emilmont 1:fdd22bb7aa52 5952
emilmont 1:fdd22bb7aa52 5953 /* Circularly update wOffset. Watch out for positive and negative value */
emilmont 1:fdd22bb7aa52 5954 wOffset += bufferInc;
emilmont 1:fdd22bb7aa52 5955 if(wOffset >= L)
emilmont 1:fdd22bb7aa52 5956 wOffset -= L;
emilmont 1:fdd22bb7aa52 5957
emilmont 1:fdd22bb7aa52 5958 /* Decrement the loop counter */
emilmont 1:fdd22bb7aa52 5959 i--;
emilmont 1:fdd22bb7aa52 5960 }
emilmont 1:fdd22bb7aa52 5961
emilmont 1:fdd22bb7aa52 5962 /* Update the index pointer */
emilmont 1:fdd22bb7aa52 5963 *writeOffset = wOffset;
emilmont 1:fdd22bb7aa52 5964 }
emilmont 1:fdd22bb7aa52 5965
emilmont 1:fdd22bb7aa52 5966
emilmont 1:fdd22bb7aa52 5967
emilmont 1:fdd22bb7aa52 5968 /**
emilmont 1:fdd22bb7aa52 5969 * @brief floating-point Circular Read function.
emilmont 1:fdd22bb7aa52 5970 */
mbed_official 3:7a284390b0ce 5971 static __INLINE void arm_circularRead_f32(
emilmont 1:fdd22bb7aa52 5972 int32_t * circBuffer,
emilmont 1:fdd22bb7aa52 5973 int32_t L,
emilmont 1:fdd22bb7aa52 5974 int32_t * readOffset,
emilmont 1:fdd22bb7aa52 5975 int32_t bufferInc,
emilmont 1:fdd22bb7aa52 5976 int32_t * dst,
emilmont 1:fdd22bb7aa52 5977 int32_t * dst_base,
emilmont 1:fdd22bb7aa52 5978 int32_t dst_length,
emilmont 1:fdd22bb7aa52 5979 int32_t dstInc,
emilmont 1:fdd22bb7aa52 5980 uint32_t blockSize)
emilmont 1:fdd22bb7aa52 5981 {
emilmont 1:fdd22bb7aa52 5982 uint32_t i = 0u;
emilmont 1:fdd22bb7aa52 5983 int32_t rOffset, dst_end;
emilmont 1:fdd22bb7aa52 5984
emilmont 1:fdd22bb7aa52 5985 /* Copy the value of Index pointer that points
emilmont 1:fdd22bb7aa52 5986 * to the current location from where the input samples to be read */
emilmont 1:fdd22bb7aa52 5987 rOffset = *readOffset;
emilmont 1:fdd22bb7aa52 5988 dst_end = (int32_t) (dst_base + dst_length);
emilmont 1:fdd22bb7aa52 5989
emilmont 1:fdd22bb7aa52 5990 /* Loop over the blockSize */
emilmont 1:fdd22bb7aa52 5991 i = blockSize;
emilmont 1:fdd22bb7aa52 5992
emilmont 1:fdd22bb7aa52 5993 while(i > 0u)
emilmont 1:fdd22bb7aa52 5994 {
emilmont 1:fdd22bb7aa52 5995 /* copy the sample from the circular buffer to the destination buffer */
emilmont 1:fdd22bb7aa52 5996 *dst = circBuffer[rOffset];
emilmont 1:fdd22bb7aa52 5997
emilmont 1:fdd22bb7aa52 5998 /* Update the input pointer */
emilmont 1:fdd22bb7aa52 5999 dst += dstInc;
emilmont 1:fdd22bb7aa52 6000
emilmont 1:fdd22bb7aa52 6001 if(dst == (int32_t *) dst_end)
emilmont 1:fdd22bb7aa52 6002 {
emilmont 1:fdd22bb7aa52 6003 dst = dst_base;
emilmont 1:fdd22bb7aa52 6004 }
emilmont 1:fdd22bb7aa52 6005
emilmont 1:fdd22bb7aa52 6006 /* Circularly update rOffset. Watch out for positive and negative value */
emilmont 1:fdd22bb7aa52 6007 rOffset += bufferInc;
emilmont 1:fdd22bb7aa52 6008
emilmont 1:fdd22bb7aa52 6009 if(rOffset >= L)
emilmont 1:fdd22bb7aa52 6010 {
emilmont 1:fdd22bb7aa52 6011 rOffset -= L;
emilmont 1:fdd22bb7aa52 6012 }
emilmont 1:fdd22bb7aa52 6013
emilmont 1:fdd22bb7aa52 6014 /* Decrement the loop counter */
emilmont 1:fdd22bb7aa52 6015 i--;
emilmont 1:fdd22bb7aa52 6016 }
emilmont 1:fdd22bb7aa52 6017
emilmont 1:fdd22bb7aa52 6018 /* Update the index pointer */
emilmont 1:fdd22bb7aa52 6019 *readOffset = rOffset;
emilmont 1:fdd22bb7aa52 6020 }
emilmont 1:fdd22bb7aa52 6021
emilmont 1:fdd22bb7aa52 6022 /**
emilmont 1:fdd22bb7aa52 6023 * @brief Q15 Circular write function.
emilmont 1:fdd22bb7aa52 6024 */
emilmont 1:fdd22bb7aa52 6025
mbed_official 3:7a284390b0ce 6026 static __INLINE void arm_circularWrite_q15(
emilmont 1:fdd22bb7aa52 6027 q15_t * circBuffer,
emilmont 1:fdd22bb7aa52 6028 int32_t L,
emilmont 1:fdd22bb7aa52 6029 uint16_t * writeOffset,
emilmont 1:fdd22bb7aa52 6030 int32_t bufferInc,
emilmont 1:fdd22bb7aa52 6031 const q15_t * src,
emilmont 1:fdd22bb7aa52 6032 int32_t srcInc,
emilmont 1:fdd22bb7aa52 6033 uint32_t blockSize)
emilmont 1:fdd22bb7aa52 6034 {
emilmont 1:fdd22bb7aa52 6035 uint32_t i = 0u;
emilmont 1:fdd22bb7aa52 6036 int32_t wOffset;
emilmont 1:fdd22bb7aa52 6037
emilmont 1:fdd22bb7aa52 6038 /* Copy the value of Index pointer that points
emilmont 1:fdd22bb7aa52 6039 * to the current location where the input samples to be copied */
emilmont 1:fdd22bb7aa52 6040 wOffset = *writeOffset;
emilmont 1:fdd22bb7aa52 6041
emilmont 1:fdd22bb7aa52 6042 /* Loop over the blockSize */
emilmont 1:fdd22bb7aa52 6043 i = blockSize;
emilmont 1:fdd22bb7aa52 6044
emilmont 1:fdd22bb7aa52 6045 while(i > 0u)
emilmont 1:fdd22bb7aa52 6046 {
emilmont 1:fdd22bb7aa52 6047 /* copy the input sample to the circular buffer */
emilmont 1:fdd22bb7aa52 6048 circBuffer[wOffset] = *src;
emilmont 1:fdd22bb7aa52 6049
emilmont 1:fdd22bb7aa52 6050 /* Update the input pointer */
emilmont 1:fdd22bb7aa52 6051 src += srcInc;
emilmont 1:fdd22bb7aa52 6052
emilmont 1:fdd22bb7aa52 6053 /* Circularly update wOffset. Watch out for positive and negative value */
emilmont 1:fdd22bb7aa52 6054 wOffset += bufferInc;
emilmont 1:fdd22bb7aa52 6055 if(wOffset >= L)
emilmont 1:fdd22bb7aa52 6056 wOffset -= L;
emilmont 1:fdd22bb7aa52 6057
emilmont 1:fdd22bb7aa52 6058 /* Decrement the loop counter */
emilmont 1:fdd22bb7aa52 6059 i--;
emilmont 1:fdd22bb7aa52 6060 }
emilmont 1:fdd22bb7aa52 6061
emilmont 1:fdd22bb7aa52 6062 /* Update the index pointer */
emilmont 1:fdd22bb7aa52 6063 *writeOffset = wOffset;
emilmont 1:fdd22bb7aa52 6064 }
emilmont 1:fdd22bb7aa52 6065
emilmont 1:fdd22bb7aa52 6066
emilmont 1:fdd22bb7aa52 6067
emilmont 1:fdd22bb7aa52 6068 /**
emilmont 1:fdd22bb7aa52 6069 * @brief Q15 Circular Read function.
emilmont 1:fdd22bb7aa52 6070 */
mbed_official 3:7a284390b0ce 6071 static __INLINE void arm_circularRead_q15(
emilmont 1:fdd22bb7aa52 6072 q15_t * circBuffer,
emilmont 1:fdd22bb7aa52 6073 int32_t L,
emilmont 1:fdd22bb7aa52 6074 int32_t * readOffset,
emilmont 1:fdd22bb7aa52 6075 int32_t bufferInc,
emilmont 1:fdd22bb7aa52 6076 q15_t * dst,
emilmont 1:fdd22bb7aa52 6077 q15_t * dst_base,
emilmont 1:fdd22bb7aa52 6078 int32_t dst_length,
emilmont 1:fdd22bb7aa52 6079 int32_t dstInc,
emilmont 1:fdd22bb7aa52 6080 uint32_t blockSize)
emilmont 1:fdd22bb7aa52 6081 {
emilmont 1:fdd22bb7aa52 6082 uint32_t i = 0;
emilmont 1:fdd22bb7aa52 6083 int32_t rOffset, dst_end;
emilmont 1:fdd22bb7aa52 6084
emilmont 1:fdd22bb7aa52 6085 /* Copy the value of Index pointer that points
emilmont 1:fdd22bb7aa52 6086 * to the current location from where the input samples to be read */
emilmont 1:fdd22bb7aa52 6087 rOffset = *readOffset;
emilmont 1:fdd22bb7aa52 6088
emilmont 1:fdd22bb7aa52 6089 dst_end = (int32_t) (dst_base + dst_length);
emilmont 1:fdd22bb7aa52 6090
emilmont 1:fdd22bb7aa52 6091 /* Loop over the blockSize */
emilmont 1:fdd22bb7aa52 6092 i = blockSize;
emilmont 1:fdd22bb7aa52 6093
emilmont 1:fdd22bb7aa52 6094 while(i > 0u)
emilmont 1:fdd22bb7aa52 6095 {
emilmont 1:fdd22bb7aa52 6096 /* copy the sample from the circular buffer to the destination buffer */
emilmont 1:fdd22bb7aa52 6097 *dst = circBuffer[rOffset];
emilmont 1:fdd22bb7aa52 6098
emilmont 1:fdd22bb7aa52 6099 /* Update the input pointer */
emilmont 1:fdd22bb7aa52 6100 dst += dstInc;
emilmont 1:fdd22bb7aa52 6101
emilmont 1:fdd22bb7aa52 6102 if(dst == (q15_t *) dst_end)
emilmont 1:fdd22bb7aa52 6103 {
emilmont 1:fdd22bb7aa52 6104 dst = dst_base;
emilmont 1:fdd22bb7aa52 6105 }
emilmont 1:fdd22bb7aa52 6106
emilmont 1:fdd22bb7aa52 6107 /* Circularly update wOffset. Watch out for positive and negative value */
emilmont 1:fdd22bb7aa52 6108 rOffset += bufferInc;
emilmont 1:fdd22bb7aa52 6109
emilmont 1:fdd22bb7aa52 6110 if(rOffset >= L)
emilmont 1:fdd22bb7aa52 6111 {
emilmont 1:fdd22bb7aa52 6112 rOffset -= L;
emilmont 1:fdd22bb7aa52 6113 }
emilmont 1:fdd22bb7aa52 6114
emilmont 1:fdd22bb7aa52 6115 /* Decrement the loop counter */
emilmont 1:fdd22bb7aa52 6116 i--;
emilmont 1:fdd22bb7aa52 6117 }
emilmont 1:fdd22bb7aa52 6118
emilmont 1:fdd22bb7aa52 6119 /* Update the index pointer */
emilmont 1:fdd22bb7aa52 6120 *readOffset = rOffset;
emilmont 1:fdd22bb7aa52 6121 }
emilmont 1:fdd22bb7aa52 6122
emilmont 1:fdd22bb7aa52 6123
emilmont 1:fdd22bb7aa52 6124 /**
emilmont 1:fdd22bb7aa52 6125 * @brief Q7 Circular write function.
emilmont 1:fdd22bb7aa52 6126 */
emilmont 1:fdd22bb7aa52 6127
mbed_official 3:7a284390b0ce 6128 static __INLINE void arm_circularWrite_q7(
emilmont 1:fdd22bb7aa52 6129 q7_t * circBuffer,
emilmont 1:fdd22bb7aa52 6130 int32_t L,
emilmont 1:fdd22bb7aa52 6131 uint16_t * writeOffset,
emilmont 1:fdd22bb7aa52 6132 int32_t bufferInc,
emilmont 1:fdd22bb7aa52 6133 const q7_t * src,
emilmont 1:fdd22bb7aa52 6134 int32_t srcInc,
emilmont 1:fdd22bb7aa52 6135 uint32_t blockSize)
emilmont 1:fdd22bb7aa52 6136 {
emilmont 1:fdd22bb7aa52 6137 uint32_t i = 0u;
emilmont 1:fdd22bb7aa52 6138 int32_t wOffset;
emilmont 1:fdd22bb7aa52 6139
emilmont 1:fdd22bb7aa52 6140 /* Copy the value of Index pointer that points
emilmont 1:fdd22bb7aa52 6141 * to the current location where the input samples to be copied */
emilmont 1:fdd22bb7aa52 6142 wOffset = *writeOffset;
emilmont 1:fdd22bb7aa52 6143
emilmont 1:fdd22bb7aa52 6144 /* Loop over the blockSize */
emilmont 1:fdd22bb7aa52 6145 i = blockSize;
emilmont 1:fdd22bb7aa52 6146
emilmont 1:fdd22bb7aa52 6147 while(i > 0u)
emilmont 1:fdd22bb7aa52 6148 {
emilmont 1:fdd22bb7aa52 6149 /* copy the input sample to the circular buffer */
emilmont 1:fdd22bb7aa52 6150 circBuffer[wOffset] = *src;
emilmont 1:fdd22bb7aa52 6151
emilmont 1:fdd22bb7aa52 6152 /* Update the input pointer */
emilmont 1:fdd22bb7aa52 6153 src += srcInc;
emilmont 1:fdd22bb7aa52 6154
emilmont 1:fdd22bb7aa52 6155 /* Circularly update wOffset. Watch out for positive and negative value */
emilmont 1:fdd22bb7aa52 6156 wOffset += bufferInc;
emilmont 1:fdd22bb7aa52 6157 if(wOffset >= L)
emilmont 1:fdd22bb7aa52 6158 wOffset -= L;
emilmont 1:fdd22bb7aa52 6159
emilmont 1:fdd22bb7aa52 6160 /* Decrement the loop counter */
emilmont 1:fdd22bb7aa52 6161 i--;
emilmont 1:fdd22bb7aa52 6162 }
emilmont 1:fdd22bb7aa52 6163
emilmont 1:fdd22bb7aa52 6164 /* Update the index pointer */
emilmont 1:fdd22bb7aa52 6165 *writeOffset = wOffset;
emilmont 1:fdd22bb7aa52 6166 }
emilmont 1:fdd22bb7aa52 6167
emilmont 1:fdd22bb7aa52 6168
emilmont 1:fdd22bb7aa52 6169
emilmont 1:fdd22bb7aa52 6170 /**
emilmont 1:fdd22bb7aa52 6171 * @brief Q7 Circular Read function.
emilmont 1:fdd22bb7aa52 6172 */
mbed_official 3:7a284390b0ce 6173 static __INLINE void arm_circularRead_q7(
emilmont 1:fdd22bb7aa52 6174 q7_t * circBuffer,
emilmont 1:fdd22bb7aa52 6175 int32_t L,
emilmont 1:fdd22bb7aa52 6176 int32_t * readOffset,
emilmont 1:fdd22bb7aa52 6177 int32_t bufferInc,
emilmont 1:fdd22bb7aa52 6178 q7_t * dst,
emilmont 1:fdd22bb7aa52 6179 q7_t * dst_base,
emilmont 1:fdd22bb7aa52 6180 int32_t dst_length,
emilmont 1:fdd22bb7aa52 6181 int32_t dstInc,
emilmont 1:fdd22bb7aa52 6182 uint32_t blockSize)
emilmont 1:fdd22bb7aa52 6183 {
emilmont 1:fdd22bb7aa52 6184 uint32_t i = 0;
emilmont 1:fdd22bb7aa52 6185 int32_t rOffset, dst_end;
emilmont 1:fdd22bb7aa52 6186
emilmont 1:fdd22bb7aa52 6187 /* Copy the value of Index pointer that points
emilmont 1:fdd22bb7aa52 6188 * to the current location from where the input samples to be read */
emilmont 1:fdd22bb7aa52 6189 rOffset = *readOffset;
emilmont 1:fdd22bb7aa52 6190
emilmont 1:fdd22bb7aa52 6191 dst_end = (int32_t) (dst_base + dst_length);
emilmont 1:fdd22bb7aa52 6192
emilmont 1:fdd22bb7aa52 6193 /* Loop over the blockSize */
emilmont 1:fdd22bb7aa52 6194 i = blockSize;
emilmont 1:fdd22bb7aa52 6195
emilmont 1:fdd22bb7aa52 6196 while(i > 0u)
emilmont 1:fdd22bb7aa52 6197 {
emilmont 1:fdd22bb7aa52 6198 /* copy the sample from the circular buffer to the destination buffer */
emilmont 1:fdd22bb7aa52 6199 *dst = circBuffer[rOffset];
emilmont 1:fdd22bb7aa52 6200
emilmont 1:fdd22bb7aa52 6201 /* Update the input pointer */
emilmont 1:fdd22bb7aa52 6202 dst += dstInc;
emilmont 1:fdd22bb7aa52 6203
emilmont 1:fdd22bb7aa52 6204 if(dst == (q7_t *) dst_end)
emilmont 1:fdd22bb7aa52 6205 {
emilmont 1:fdd22bb7aa52 6206 dst = dst_base;
emilmont 1:fdd22bb7aa52 6207 }
emilmont 1:fdd22bb7aa52 6208
emilmont 1:fdd22bb7aa52 6209 /* Circularly update rOffset. Watch out for positive and negative value */
emilmont 1:fdd22bb7aa52 6210 rOffset += bufferInc;
emilmont 1:fdd22bb7aa52 6211
emilmont 1:fdd22bb7aa52 6212 if(rOffset >= L)
emilmont 1:fdd22bb7aa52 6213 {
emilmont 1:fdd22bb7aa52 6214 rOffset -= L;
emilmont 1:fdd22bb7aa52 6215 }
emilmont 1:fdd22bb7aa52 6216
emilmont 1:fdd22bb7aa52 6217 /* Decrement the loop counter */
emilmont 1:fdd22bb7aa52 6218 i--;
emilmont 1:fdd22bb7aa52 6219 }
emilmont 1:fdd22bb7aa52 6220
emilmont 1:fdd22bb7aa52 6221 /* Update the index pointer */
emilmont 1:fdd22bb7aa52 6222 *readOffset = rOffset;
emilmont 1:fdd22bb7aa52 6223 }
emilmont 1:fdd22bb7aa52 6224
emilmont 1:fdd22bb7aa52 6225
emilmont 1:fdd22bb7aa52 6226 /**
emilmont 1:fdd22bb7aa52 6227 * @brief Sum of the squares of the elements of a Q31 vector.
emilmont 1:fdd22bb7aa52 6228 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6229 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6230 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6231 * @return none.
emilmont 1:fdd22bb7aa52 6232 */
emilmont 1:fdd22bb7aa52 6233
emilmont 1:fdd22bb7aa52 6234 void arm_power_q31(
emilmont 1:fdd22bb7aa52 6235 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 6236 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6237 q63_t * pResult);
emilmont 1:fdd22bb7aa52 6238
emilmont 1:fdd22bb7aa52 6239 /**
emilmont 1:fdd22bb7aa52 6240 * @brief Sum of the squares of the elements of a floating-point vector.
emilmont 1:fdd22bb7aa52 6241 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6242 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6243 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6244 * @return none.
emilmont 1:fdd22bb7aa52 6245 */
emilmont 1:fdd22bb7aa52 6246
emilmont 1:fdd22bb7aa52 6247 void arm_power_f32(
emilmont 1:fdd22bb7aa52 6248 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 6249 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6250 float32_t * pResult);
emilmont 1:fdd22bb7aa52 6251
emilmont 1:fdd22bb7aa52 6252 /**
emilmont 1:fdd22bb7aa52 6253 * @brief Sum of the squares of the elements of a Q15 vector.
emilmont 1:fdd22bb7aa52 6254 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6255 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6256 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6257 * @return none.
emilmont 1:fdd22bb7aa52 6258 */
emilmont 1:fdd22bb7aa52 6259
emilmont 1:fdd22bb7aa52 6260 void arm_power_q15(
emilmont 1:fdd22bb7aa52 6261 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 6262 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6263 q63_t * pResult);
emilmont 1:fdd22bb7aa52 6264
emilmont 1:fdd22bb7aa52 6265 /**
emilmont 1:fdd22bb7aa52 6266 * @brief Sum of the squares of the elements of a Q7 vector.
emilmont 1:fdd22bb7aa52 6267 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6268 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6269 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6270 * @return none.
emilmont 1:fdd22bb7aa52 6271 */
emilmont 1:fdd22bb7aa52 6272
emilmont 1:fdd22bb7aa52 6273 void arm_power_q7(
emilmont 1:fdd22bb7aa52 6274 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 6275 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6276 q31_t * pResult);
emilmont 1:fdd22bb7aa52 6277
emilmont 1:fdd22bb7aa52 6278 /**
emilmont 1:fdd22bb7aa52 6279 * @brief Mean value of a Q7 vector.
emilmont 1:fdd22bb7aa52 6280 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6281 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6282 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6283 * @return none.
emilmont 1:fdd22bb7aa52 6284 */
emilmont 1:fdd22bb7aa52 6285
emilmont 1:fdd22bb7aa52 6286 void arm_mean_q7(
emilmont 1:fdd22bb7aa52 6287 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 6288 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6289 q7_t * pResult);
emilmont 1:fdd22bb7aa52 6290
emilmont 1:fdd22bb7aa52 6291 /**
emilmont 1:fdd22bb7aa52 6292 * @brief Mean value of a Q15 vector.
emilmont 1:fdd22bb7aa52 6293 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6294 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6295 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6296 * @return none.
emilmont 1:fdd22bb7aa52 6297 */
emilmont 1:fdd22bb7aa52 6298 void arm_mean_q15(
emilmont 1:fdd22bb7aa52 6299 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 6300 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6301 q15_t * pResult);
emilmont 1:fdd22bb7aa52 6302
emilmont 1:fdd22bb7aa52 6303 /**
emilmont 1:fdd22bb7aa52 6304 * @brief Mean value of a Q31 vector.
emilmont 1:fdd22bb7aa52 6305 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6306 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6307 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6308 * @return none.
emilmont 1:fdd22bb7aa52 6309 */
emilmont 1:fdd22bb7aa52 6310 void arm_mean_q31(
emilmont 1:fdd22bb7aa52 6311 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 6312 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6313 q31_t * pResult);
emilmont 1:fdd22bb7aa52 6314
emilmont 1:fdd22bb7aa52 6315 /**
emilmont 1:fdd22bb7aa52 6316 * @brief Mean value of a floating-point vector.
emilmont 1:fdd22bb7aa52 6317 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6318 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6319 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6320 * @return none.
emilmont 1:fdd22bb7aa52 6321 */
emilmont 1:fdd22bb7aa52 6322 void arm_mean_f32(
emilmont 1:fdd22bb7aa52 6323 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 6324 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6325 float32_t * pResult);
emilmont 1:fdd22bb7aa52 6326
emilmont 1:fdd22bb7aa52 6327 /**
emilmont 1:fdd22bb7aa52 6328 * @brief Variance of the elements of a floating-point vector.
emilmont 1:fdd22bb7aa52 6329 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6330 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6331 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6332 * @return none.
emilmont 1:fdd22bb7aa52 6333 */
emilmont 1:fdd22bb7aa52 6334
emilmont 1:fdd22bb7aa52 6335 void arm_var_f32(
emilmont 1:fdd22bb7aa52 6336 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 6337 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6338 float32_t * pResult);
emilmont 1:fdd22bb7aa52 6339
emilmont 1:fdd22bb7aa52 6340 /**
emilmont 1:fdd22bb7aa52 6341 * @brief Variance of the elements of a Q31 vector.
emilmont 1:fdd22bb7aa52 6342 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6343 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6344 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6345 * @return none.
emilmont 1:fdd22bb7aa52 6346 */
emilmont 1:fdd22bb7aa52 6347
emilmont 1:fdd22bb7aa52 6348 void arm_var_q31(
emilmont 1:fdd22bb7aa52 6349 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 6350 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6351 q63_t * pResult);
emilmont 1:fdd22bb7aa52 6352
emilmont 1:fdd22bb7aa52 6353 /**
emilmont 1:fdd22bb7aa52 6354 * @brief Variance of the elements of a Q15 vector.
emilmont 1:fdd22bb7aa52 6355 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6356 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6357 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6358 * @return none.
emilmont 1:fdd22bb7aa52 6359 */
emilmont 1:fdd22bb7aa52 6360
emilmont 1:fdd22bb7aa52 6361 void arm_var_q15(
emilmont 1:fdd22bb7aa52 6362 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 6363 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6364 q31_t * pResult);
emilmont 1:fdd22bb7aa52 6365
emilmont 1:fdd22bb7aa52 6366 /**
emilmont 1:fdd22bb7aa52 6367 * @brief Root Mean Square of the elements of a floating-point vector.
emilmont 1:fdd22bb7aa52 6368 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6369 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6370 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6371 * @return none.
emilmont 1:fdd22bb7aa52 6372 */
emilmont 1:fdd22bb7aa52 6373
emilmont 1:fdd22bb7aa52 6374 void arm_rms_f32(
emilmont 1:fdd22bb7aa52 6375 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 6376 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6377 float32_t * pResult);
emilmont 1:fdd22bb7aa52 6378
emilmont 1:fdd22bb7aa52 6379 /**
emilmont 1:fdd22bb7aa52 6380 * @brief Root Mean Square of the elements of a Q31 vector.
emilmont 1:fdd22bb7aa52 6381 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6382 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6383 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6384 * @return none.
emilmont 1:fdd22bb7aa52 6385 */
emilmont 1:fdd22bb7aa52 6386
emilmont 1:fdd22bb7aa52 6387 void arm_rms_q31(
emilmont 1:fdd22bb7aa52 6388 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 6389 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6390 q31_t * pResult);
emilmont 1:fdd22bb7aa52 6391
emilmont 1:fdd22bb7aa52 6392 /**
emilmont 1:fdd22bb7aa52 6393 * @brief Root Mean Square of the elements of a Q15 vector.
emilmont 1:fdd22bb7aa52 6394 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6395 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6396 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6397 * @return none.
emilmont 1:fdd22bb7aa52 6398 */
emilmont 1:fdd22bb7aa52 6399
emilmont 1:fdd22bb7aa52 6400 void arm_rms_q15(
emilmont 1:fdd22bb7aa52 6401 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 6402 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6403 q15_t * pResult);
emilmont 1:fdd22bb7aa52 6404
emilmont 1:fdd22bb7aa52 6405 /**
emilmont 1:fdd22bb7aa52 6406 * @brief Standard deviation of the elements of a floating-point vector.
emilmont 1:fdd22bb7aa52 6407 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6408 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6409 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6410 * @return none.
emilmont 1:fdd22bb7aa52 6411 */
emilmont 1:fdd22bb7aa52 6412
emilmont 1:fdd22bb7aa52 6413 void arm_std_f32(
emilmont 1:fdd22bb7aa52 6414 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 6415 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6416 float32_t * pResult);
emilmont 1:fdd22bb7aa52 6417
emilmont 1:fdd22bb7aa52 6418 /**
emilmont 1:fdd22bb7aa52 6419 * @brief Standard deviation of the elements of a Q31 vector.
emilmont 1:fdd22bb7aa52 6420 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6421 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6422 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6423 * @return none.
emilmont 1:fdd22bb7aa52 6424 */
emilmont 1:fdd22bb7aa52 6425
emilmont 1:fdd22bb7aa52 6426 void arm_std_q31(
emilmont 1:fdd22bb7aa52 6427 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 6428 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6429 q31_t * pResult);
emilmont 1:fdd22bb7aa52 6430
emilmont 1:fdd22bb7aa52 6431 /**
emilmont 1:fdd22bb7aa52 6432 * @brief Standard deviation of the elements of a Q15 vector.
emilmont 1:fdd22bb7aa52 6433 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6434 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6435 * @param[out] *pResult is output value.
emilmont 1:fdd22bb7aa52 6436 * @return none.
emilmont 1:fdd22bb7aa52 6437 */
emilmont 1:fdd22bb7aa52 6438
emilmont 1:fdd22bb7aa52 6439 void arm_std_q15(
emilmont 1:fdd22bb7aa52 6440 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 6441 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6442 q15_t * pResult);
emilmont 1:fdd22bb7aa52 6443
emilmont 1:fdd22bb7aa52 6444 /**
emilmont 1:fdd22bb7aa52 6445 * @brief Floating-point complex magnitude
emilmont 1:fdd22bb7aa52 6446 * @param[in] *pSrc points to the complex input vector
emilmont 1:fdd22bb7aa52 6447 * @param[out] *pDst points to the real output vector
emilmont 1:fdd22bb7aa52 6448 * @param[in] numSamples number of complex samples in the input vector
emilmont 1:fdd22bb7aa52 6449 * @return none.
emilmont 1:fdd22bb7aa52 6450 */
emilmont 1:fdd22bb7aa52 6451
emilmont 1:fdd22bb7aa52 6452 void arm_cmplx_mag_f32(
emilmont 1:fdd22bb7aa52 6453 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 6454 float32_t * pDst,
emilmont 1:fdd22bb7aa52 6455 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 6456
emilmont 1:fdd22bb7aa52 6457 /**
emilmont 1:fdd22bb7aa52 6458 * @brief Q31 complex magnitude
emilmont 1:fdd22bb7aa52 6459 * @param[in] *pSrc points to the complex input vector
emilmont 1:fdd22bb7aa52 6460 * @param[out] *pDst points to the real output vector
emilmont 1:fdd22bb7aa52 6461 * @param[in] numSamples number of complex samples in the input vector
emilmont 1:fdd22bb7aa52 6462 * @return none.
emilmont 1:fdd22bb7aa52 6463 */
emilmont 1:fdd22bb7aa52 6464
emilmont 1:fdd22bb7aa52 6465 void arm_cmplx_mag_q31(
emilmont 1:fdd22bb7aa52 6466 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 6467 q31_t * pDst,
emilmont 1:fdd22bb7aa52 6468 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 6469
emilmont 1:fdd22bb7aa52 6470 /**
emilmont 1:fdd22bb7aa52 6471 * @brief Q15 complex magnitude
emilmont 1:fdd22bb7aa52 6472 * @param[in] *pSrc points to the complex input vector
emilmont 1:fdd22bb7aa52 6473 * @param[out] *pDst points to the real output vector
emilmont 1:fdd22bb7aa52 6474 * @param[in] numSamples number of complex samples in the input vector
emilmont 1:fdd22bb7aa52 6475 * @return none.
emilmont 1:fdd22bb7aa52 6476 */
emilmont 1:fdd22bb7aa52 6477
emilmont 1:fdd22bb7aa52 6478 void arm_cmplx_mag_q15(
emilmont 1:fdd22bb7aa52 6479 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 6480 q15_t * pDst,
emilmont 1:fdd22bb7aa52 6481 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 6482
emilmont 1:fdd22bb7aa52 6483 /**
emilmont 1:fdd22bb7aa52 6484 * @brief Q15 complex dot product
emilmont 1:fdd22bb7aa52 6485 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 6486 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 6487 * @param[in] numSamples number of complex samples in each vector
emilmont 1:fdd22bb7aa52 6488 * @param[out] *realResult real part of the result returned here
emilmont 1:fdd22bb7aa52 6489 * @param[out] *imagResult imaginary part of the result returned here
emilmont 1:fdd22bb7aa52 6490 * @return none.
emilmont 1:fdd22bb7aa52 6491 */
emilmont 1:fdd22bb7aa52 6492
emilmont 1:fdd22bb7aa52 6493 void arm_cmplx_dot_prod_q15(
emilmont 1:fdd22bb7aa52 6494 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 6495 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 6496 uint32_t numSamples,
emilmont 1:fdd22bb7aa52 6497 q31_t * realResult,
emilmont 1:fdd22bb7aa52 6498 q31_t * imagResult);
emilmont 1:fdd22bb7aa52 6499
emilmont 1:fdd22bb7aa52 6500 /**
emilmont 1:fdd22bb7aa52 6501 * @brief Q31 complex dot product
emilmont 1:fdd22bb7aa52 6502 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 6503 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 6504 * @param[in] numSamples number of complex samples in each vector
emilmont 1:fdd22bb7aa52 6505 * @param[out] *realResult real part of the result returned here
emilmont 1:fdd22bb7aa52 6506 * @param[out] *imagResult imaginary part of the result returned here
emilmont 1:fdd22bb7aa52 6507 * @return none.
emilmont 1:fdd22bb7aa52 6508 */
emilmont 1:fdd22bb7aa52 6509
emilmont 1:fdd22bb7aa52 6510 void arm_cmplx_dot_prod_q31(
emilmont 1:fdd22bb7aa52 6511 q31_t * pSrcA,
emilmont 1:fdd22bb7aa52 6512 q31_t * pSrcB,
emilmont 1:fdd22bb7aa52 6513 uint32_t numSamples,
emilmont 1:fdd22bb7aa52 6514 q63_t * realResult,
emilmont 1:fdd22bb7aa52 6515 q63_t * imagResult);
emilmont 1:fdd22bb7aa52 6516
emilmont 1:fdd22bb7aa52 6517 /**
emilmont 1:fdd22bb7aa52 6518 * @brief Floating-point complex dot product
emilmont 1:fdd22bb7aa52 6519 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 6520 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 6521 * @param[in] numSamples number of complex samples in each vector
emilmont 1:fdd22bb7aa52 6522 * @param[out] *realResult real part of the result returned here
emilmont 1:fdd22bb7aa52 6523 * @param[out] *imagResult imaginary part of the result returned here
emilmont 1:fdd22bb7aa52 6524 * @return none.
emilmont 1:fdd22bb7aa52 6525 */
emilmont 1:fdd22bb7aa52 6526
emilmont 1:fdd22bb7aa52 6527 void arm_cmplx_dot_prod_f32(
emilmont 1:fdd22bb7aa52 6528 float32_t * pSrcA,
emilmont 1:fdd22bb7aa52 6529 float32_t * pSrcB,
emilmont 1:fdd22bb7aa52 6530 uint32_t numSamples,
emilmont 1:fdd22bb7aa52 6531 float32_t * realResult,
emilmont 1:fdd22bb7aa52 6532 float32_t * imagResult);
emilmont 1:fdd22bb7aa52 6533
emilmont 1:fdd22bb7aa52 6534 /**
emilmont 1:fdd22bb7aa52 6535 * @brief Q15 complex-by-real multiplication
emilmont 1:fdd22bb7aa52 6536 * @param[in] *pSrcCmplx points to the complex input vector
emilmont 1:fdd22bb7aa52 6537 * @param[in] *pSrcReal points to the real input vector
emilmont 1:fdd22bb7aa52 6538 * @param[out] *pCmplxDst points to the complex output vector
emilmont 1:fdd22bb7aa52 6539 * @param[in] numSamples number of samples in each vector
emilmont 1:fdd22bb7aa52 6540 * @return none.
emilmont 1:fdd22bb7aa52 6541 */
emilmont 1:fdd22bb7aa52 6542
emilmont 1:fdd22bb7aa52 6543 void arm_cmplx_mult_real_q15(
emilmont 1:fdd22bb7aa52 6544 q15_t * pSrcCmplx,
emilmont 1:fdd22bb7aa52 6545 q15_t * pSrcReal,
emilmont 1:fdd22bb7aa52 6546 q15_t * pCmplxDst,
emilmont 1:fdd22bb7aa52 6547 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 6548
emilmont 1:fdd22bb7aa52 6549 /**
emilmont 1:fdd22bb7aa52 6550 * @brief Q31 complex-by-real multiplication
emilmont 1:fdd22bb7aa52 6551 * @param[in] *pSrcCmplx points to the complex input vector
emilmont 1:fdd22bb7aa52 6552 * @param[in] *pSrcReal points to the real input vector
emilmont 1:fdd22bb7aa52 6553 * @param[out] *pCmplxDst points to the complex output vector
emilmont 1:fdd22bb7aa52 6554 * @param[in] numSamples number of samples in each vector
emilmont 1:fdd22bb7aa52 6555 * @return none.
emilmont 1:fdd22bb7aa52 6556 */
emilmont 1:fdd22bb7aa52 6557
emilmont 1:fdd22bb7aa52 6558 void arm_cmplx_mult_real_q31(
emilmont 1:fdd22bb7aa52 6559 q31_t * pSrcCmplx,
emilmont 1:fdd22bb7aa52 6560 q31_t * pSrcReal,
emilmont 1:fdd22bb7aa52 6561 q31_t * pCmplxDst,
emilmont 1:fdd22bb7aa52 6562 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 6563
emilmont 1:fdd22bb7aa52 6564 /**
emilmont 1:fdd22bb7aa52 6565 * @brief Floating-point complex-by-real multiplication
emilmont 1:fdd22bb7aa52 6566 * @param[in] *pSrcCmplx points to the complex input vector
emilmont 1:fdd22bb7aa52 6567 * @param[in] *pSrcReal points to the real input vector
emilmont 1:fdd22bb7aa52 6568 * @param[out] *pCmplxDst points to the complex output vector
emilmont 1:fdd22bb7aa52 6569 * @param[in] numSamples number of samples in each vector
emilmont 1:fdd22bb7aa52 6570 * @return none.
emilmont 1:fdd22bb7aa52 6571 */
emilmont 1:fdd22bb7aa52 6572
emilmont 1:fdd22bb7aa52 6573 void arm_cmplx_mult_real_f32(
emilmont 1:fdd22bb7aa52 6574 float32_t * pSrcCmplx,
emilmont 1:fdd22bb7aa52 6575 float32_t * pSrcReal,
emilmont 1:fdd22bb7aa52 6576 float32_t * pCmplxDst,
emilmont 1:fdd22bb7aa52 6577 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 6578
emilmont 1:fdd22bb7aa52 6579 /**
emilmont 1:fdd22bb7aa52 6580 * @brief Minimum value of a Q7 vector.
emilmont 1:fdd22bb7aa52 6581 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6582 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6583 * @param[out] *result is output pointer
emilmont 1:fdd22bb7aa52 6584 * @param[in] index is the array index of the minimum value in the input buffer.
emilmont 1:fdd22bb7aa52 6585 * @return none.
emilmont 1:fdd22bb7aa52 6586 */
emilmont 1:fdd22bb7aa52 6587
emilmont 1:fdd22bb7aa52 6588 void arm_min_q7(
emilmont 1:fdd22bb7aa52 6589 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 6590 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6591 q7_t * result,
emilmont 1:fdd22bb7aa52 6592 uint32_t * index);
emilmont 1:fdd22bb7aa52 6593
emilmont 1:fdd22bb7aa52 6594 /**
emilmont 1:fdd22bb7aa52 6595 * @brief Minimum value of a Q15 vector.
emilmont 1:fdd22bb7aa52 6596 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6597 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6598 * @param[out] *pResult is output pointer
emilmont 1:fdd22bb7aa52 6599 * @param[in] *pIndex is the array index of the minimum value in the input buffer.
emilmont 1:fdd22bb7aa52 6600 * @return none.
emilmont 1:fdd22bb7aa52 6601 */
emilmont 1:fdd22bb7aa52 6602
emilmont 1:fdd22bb7aa52 6603 void arm_min_q15(
emilmont 1:fdd22bb7aa52 6604 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 6605 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6606 q15_t * pResult,
emilmont 1:fdd22bb7aa52 6607 uint32_t * pIndex);
emilmont 1:fdd22bb7aa52 6608
emilmont 1:fdd22bb7aa52 6609 /**
emilmont 1:fdd22bb7aa52 6610 * @brief Minimum value of a Q31 vector.
emilmont 1:fdd22bb7aa52 6611 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6612 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6613 * @param[out] *pResult is output pointer
emilmont 1:fdd22bb7aa52 6614 * @param[out] *pIndex is the array index of the minimum value in the input buffer.
emilmont 1:fdd22bb7aa52 6615 * @return none.
emilmont 1:fdd22bb7aa52 6616 */
emilmont 1:fdd22bb7aa52 6617 void arm_min_q31(
emilmont 1:fdd22bb7aa52 6618 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 6619 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6620 q31_t * pResult,
emilmont 1:fdd22bb7aa52 6621 uint32_t * pIndex);
emilmont 1:fdd22bb7aa52 6622
emilmont 1:fdd22bb7aa52 6623 /**
emilmont 1:fdd22bb7aa52 6624 * @brief Minimum value of a floating-point vector.
emilmont 1:fdd22bb7aa52 6625 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6626 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6627 * @param[out] *pResult is output pointer
emilmont 1:fdd22bb7aa52 6628 * @param[out] *pIndex is the array index of the minimum value in the input buffer.
emilmont 1:fdd22bb7aa52 6629 * @return none.
emilmont 1:fdd22bb7aa52 6630 */
emilmont 1:fdd22bb7aa52 6631
emilmont 1:fdd22bb7aa52 6632 void arm_min_f32(
emilmont 1:fdd22bb7aa52 6633 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 6634 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6635 float32_t * pResult,
emilmont 1:fdd22bb7aa52 6636 uint32_t * pIndex);
emilmont 1:fdd22bb7aa52 6637
emilmont 1:fdd22bb7aa52 6638 /**
emilmont 1:fdd22bb7aa52 6639 * @brief Maximum value of a Q7 vector.
emilmont 1:fdd22bb7aa52 6640 * @param[in] *pSrc points to the input buffer
emilmont 1:fdd22bb7aa52 6641 * @param[in] blockSize length of the input vector
emilmont 1:fdd22bb7aa52 6642 * @param[out] *pResult maximum value returned here
emilmont 1:fdd22bb7aa52 6643 * @param[out] *pIndex index of maximum value returned here
emilmont 1:fdd22bb7aa52 6644 * @return none.
emilmont 1:fdd22bb7aa52 6645 */
emilmont 1:fdd22bb7aa52 6646
emilmont 1:fdd22bb7aa52 6647 void arm_max_q7(
emilmont 1:fdd22bb7aa52 6648 q7_t * pSrc,
emilmont 1:fdd22bb7aa52 6649 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6650 q7_t * pResult,
emilmont 1:fdd22bb7aa52 6651 uint32_t * pIndex);
emilmont 1:fdd22bb7aa52 6652
emilmont 1:fdd22bb7aa52 6653 /**
emilmont 1:fdd22bb7aa52 6654 * @brief Maximum value of a Q15 vector.
emilmont 1:fdd22bb7aa52 6655 * @param[in] *pSrc points to the input buffer
emilmont 1:fdd22bb7aa52 6656 * @param[in] blockSize length of the input vector
emilmont 1:fdd22bb7aa52 6657 * @param[out] *pResult maximum value returned here
emilmont 1:fdd22bb7aa52 6658 * @param[out] *pIndex index of maximum value returned here
emilmont 1:fdd22bb7aa52 6659 * @return none.
emilmont 1:fdd22bb7aa52 6660 */
emilmont 1:fdd22bb7aa52 6661
emilmont 1:fdd22bb7aa52 6662 void arm_max_q15(
emilmont 1:fdd22bb7aa52 6663 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 6664 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6665 q15_t * pResult,
emilmont 1:fdd22bb7aa52 6666 uint32_t * pIndex);
emilmont 1:fdd22bb7aa52 6667
emilmont 1:fdd22bb7aa52 6668 /**
emilmont 1:fdd22bb7aa52 6669 * @brief Maximum value of a Q31 vector.
emilmont 1:fdd22bb7aa52 6670 * @param[in] *pSrc points to the input buffer
emilmont 1:fdd22bb7aa52 6671 * @param[in] blockSize length of the input vector
emilmont 1:fdd22bb7aa52 6672 * @param[out] *pResult maximum value returned here
emilmont 1:fdd22bb7aa52 6673 * @param[out] *pIndex index of maximum value returned here
emilmont 1:fdd22bb7aa52 6674 * @return none.
emilmont 1:fdd22bb7aa52 6675 */
emilmont 1:fdd22bb7aa52 6676
emilmont 1:fdd22bb7aa52 6677 void arm_max_q31(
emilmont 1:fdd22bb7aa52 6678 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 6679 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6680 q31_t * pResult,
emilmont 1:fdd22bb7aa52 6681 uint32_t * pIndex);
emilmont 1:fdd22bb7aa52 6682
emilmont 1:fdd22bb7aa52 6683 /**
emilmont 1:fdd22bb7aa52 6684 * @brief Maximum value of a floating-point vector.
emilmont 1:fdd22bb7aa52 6685 * @param[in] *pSrc points to the input buffer
emilmont 1:fdd22bb7aa52 6686 * @param[in] blockSize length of the input vector
emilmont 1:fdd22bb7aa52 6687 * @param[out] *pResult maximum value returned here
emilmont 1:fdd22bb7aa52 6688 * @param[out] *pIndex index of maximum value returned here
emilmont 1:fdd22bb7aa52 6689 * @return none.
emilmont 1:fdd22bb7aa52 6690 */
emilmont 1:fdd22bb7aa52 6691
emilmont 1:fdd22bb7aa52 6692 void arm_max_f32(
emilmont 1:fdd22bb7aa52 6693 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 6694 uint32_t blockSize,
emilmont 1:fdd22bb7aa52 6695 float32_t * pResult,
emilmont 1:fdd22bb7aa52 6696 uint32_t * pIndex);
emilmont 1:fdd22bb7aa52 6697
emilmont 1:fdd22bb7aa52 6698 /**
emilmont 1:fdd22bb7aa52 6699 * @brief Q15 complex-by-complex multiplication
emilmont 1:fdd22bb7aa52 6700 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 6701 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 6702 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 6703 * @param[in] numSamples number of complex samples in each vector
emilmont 1:fdd22bb7aa52 6704 * @return none.
emilmont 1:fdd22bb7aa52 6705 */
emilmont 1:fdd22bb7aa52 6706
emilmont 1:fdd22bb7aa52 6707 void arm_cmplx_mult_cmplx_q15(
emilmont 1:fdd22bb7aa52 6708 q15_t * pSrcA,
emilmont 1:fdd22bb7aa52 6709 q15_t * pSrcB,
emilmont 1:fdd22bb7aa52 6710 q15_t * pDst,
emilmont 1:fdd22bb7aa52 6711 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 6712
emilmont 1:fdd22bb7aa52 6713 /**
emilmont 1:fdd22bb7aa52 6714 * @brief Q31 complex-by-complex multiplication
emilmont 1:fdd22bb7aa52 6715 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 6716 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 6717 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 6718 * @param[in] numSamples number of complex samples in each vector
emilmont 1:fdd22bb7aa52 6719 * @return none.
emilmont 1:fdd22bb7aa52 6720 */
emilmont 1:fdd22bb7aa52 6721
emilmont 1:fdd22bb7aa52 6722 void arm_cmplx_mult_cmplx_q31(
emilmont 1:fdd22bb7aa52 6723 q31_t * pSrcA,
emilmont 1:fdd22bb7aa52 6724 q31_t * pSrcB,
emilmont 1:fdd22bb7aa52 6725 q31_t * pDst,
emilmont 1:fdd22bb7aa52 6726 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 6727
emilmont 1:fdd22bb7aa52 6728 /**
emilmont 1:fdd22bb7aa52 6729 * @brief Floating-point complex-by-complex multiplication
emilmont 1:fdd22bb7aa52 6730 * @param[in] *pSrcA points to the first input vector
emilmont 1:fdd22bb7aa52 6731 * @param[in] *pSrcB points to the second input vector
emilmont 1:fdd22bb7aa52 6732 * @param[out] *pDst points to the output vector
emilmont 1:fdd22bb7aa52 6733 * @param[in] numSamples number of complex samples in each vector
emilmont 1:fdd22bb7aa52 6734 * @return none.
emilmont 1:fdd22bb7aa52 6735 */
emilmont 1:fdd22bb7aa52 6736
emilmont 1:fdd22bb7aa52 6737 void arm_cmplx_mult_cmplx_f32(
emilmont 1:fdd22bb7aa52 6738 float32_t * pSrcA,
emilmont 1:fdd22bb7aa52 6739 float32_t * pSrcB,
emilmont 1:fdd22bb7aa52 6740 float32_t * pDst,
emilmont 1:fdd22bb7aa52 6741 uint32_t numSamples);
emilmont 1:fdd22bb7aa52 6742
emilmont 1:fdd22bb7aa52 6743 /**
mbed_official 3:7a284390b0ce 6744 * @brief Converts the elements of the floating-point vector to Q31 vector.
mbed_official 3:7a284390b0ce 6745 * @param[in] *pSrc points to the floating-point input vector
emilmont 1:fdd22bb7aa52 6746 * @param[out] *pDst points to the Q31 output vector
mbed_official 3:7a284390b0ce 6747 * @param[in] blockSize length of the input vector
mbed_official 3:7a284390b0ce 6748 * @return none.
emilmont 1:fdd22bb7aa52 6749 */
emilmont 1:fdd22bb7aa52 6750 void arm_float_to_q31(
emilmont 1:fdd22bb7aa52 6751 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 6752 q31_t * pDst,
emilmont 1:fdd22bb7aa52 6753 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 6754
emilmont 1:fdd22bb7aa52 6755 /**
mbed_official 3:7a284390b0ce 6756 * @brief Converts the elements of the floating-point vector to Q15 vector.
mbed_official 3:7a284390b0ce 6757 * @param[in] *pSrc points to the floating-point input vector
emilmont 1:fdd22bb7aa52 6758 * @param[out] *pDst points to the Q15 output vector
mbed_official 3:7a284390b0ce 6759 * @param[in] blockSize length of the input vector
emilmont 1:fdd22bb7aa52 6760 * @return none
emilmont 1:fdd22bb7aa52 6761 */
emilmont 1:fdd22bb7aa52 6762 void arm_float_to_q15(
emilmont 1:fdd22bb7aa52 6763 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 6764 q15_t * pDst,
emilmont 1:fdd22bb7aa52 6765 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 6766
emilmont 1:fdd22bb7aa52 6767 /**
mbed_official 3:7a284390b0ce 6768 * @brief Converts the elements of the floating-point vector to Q7 vector.
mbed_official 3:7a284390b0ce 6769 * @param[in] *pSrc points to the floating-point input vector
emilmont 1:fdd22bb7aa52 6770 * @param[out] *pDst points to the Q7 output vector
mbed_official 3:7a284390b0ce 6771 * @param[in] blockSize length of the input vector
emilmont 1:fdd22bb7aa52 6772 * @return none
emilmont 1:fdd22bb7aa52 6773 */
emilmont 1:fdd22bb7aa52 6774 void arm_float_to_q7(
emilmont 1:fdd22bb7aa52 6775 float32_t * pSrc,
emilmont 1:fdd22bb7aa52 6776 q7_t * pDst,
emilmont 1:fdd22bb7aa52 6777 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 6778
emilmont 1:fdd22bb7aa52 6779
emilmont 1:fdd22bb7aa52 6780 /**
emilmont 1:fdd22bb7aa52 6781 * @brief Converts the elements of the Q31 vector to Q15 vector.
emilmont 1:fdd22bb7aa52 6782 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6783 * @param[out] *pDst is output pointer
emilmont 1:fdd22bb7aa52 6784 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6785 * @return none.
emilmont 1:fdd22bb7aa52 6786 */
emilmont 1:fdd22bb7aa52 6787 void arm_q31_to_q15(
emilmont 1:fdd22bb7aa52 6788 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 6789 q15_t * pDst,
emilmont 1:fdd22bb7aa52 6790 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 6791
emilmont 1:fdd22bb7aa52 6792 /**
emilmont 1:fdd22bb7aa52 6793 * @brief Converts the elements of the Q31 vector to Q7 vector.
emilmont 1:fdd22bb7aa52 6794 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6795 * @param[out] *pDst is output pointer
emilmont 1:fdd22bb7aa52 6796 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6797 * @return none.
emilmont 1:fdd22bb7aa52 6798 */
emilmont 1:fdd22bb7aa52 6799 void arm_q31_to_q7(
emilmont 1:fdd22bb7aa52 6800 q31_t * pSrc,
emilmont 1:fdd22bb7aa52 6801 q7_t * pDst,
emilmont 1:fdd22bb7aa52 6802 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 6803
emilmont 1:fdd22bb7aa52 6804 /**
emilmont 1:fdd22bb7aa52 6805 * @brief Converts the elements of the Q15 vector to floating-point vector.
emilmont 1:fdd22bb7aa52 6806 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6807 * @param[out] *pDst is output pointer
emilmont 1:fdd22bb7aa52 6808 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6809 * @return none.
emilmont 1:fdd22bb7aa52 6810 */
emilmont 1:fdd22bb7aa52 6811 void arm_q15_to_float(
emilmont 1:fdd22bb7aa52 6812 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 6813 float32_t * pDst,
emilmont 1:fdd22bb7aa52 6814 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 6815
emilmont 1:fdd22bb7aa52 6816
emilmont 1:fdd22bb7aa52 6817 /**
emilmont 1:fdd22bb7aa52 6818 * @brief Converts the elements of the Q15 vector to Q31 vector.
emilmont 1:fdd22bb7aa52 6819 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6820 * @param[out] *pDst is output pointer
emilmont 1:fdd22bb7aa52 6821 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6822 * @return none.
emilmont 1:fdd22bb7aa52 6823 */
emilmont 1:fdd22bb7aa52 6824 void arm_q15_to_q31(
emilmont 1:fdd22bb7aa52 6825 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 6826 q31_t * pDst,
emilmont 1:fdd22bb7aa52 6827 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 6828
emilmont 1:fdd22bb7aa52 6829
emilmont 1:fdd22bb7aa52 6830 /**
emilmont 1:fdd22bb7aa52 6831 * @brief Converts the elements of the Q15 vector to Q7 vector.
emilmont 1:fdd22bb7aa52 6832 * @param[in] *pSrc is input pointer
emilmont 1:fdd22bb7aa52 6833 * @param[out] *pDst is output pointer
emilmont 1:fdd22bb7aa52 6834 * @param[in] blockSize is the number of samples to process
emilmont 1:fdd22bb7aa52 6835 * @return none.
emilmont 1:fdd22bb7aa52 6836 */
emilmont 1:fdd22bb7aa52 6837 void arm_q15_to_q7(
emilmont 1:fdd22bb7aa52 6838 q15_t * pSrc,
emilmont 1:fdd22bb7aa52 6839 q7_t * pDst,
emilmont 1:fdd22bb7aa52 6840 uint32_t blockSize);
emilmont 1:fdd22bb7aa52 6841
emilmont 1:fdd22bb7aa52 6842
emilmont 1:fdd22bb7aa52 6843 /**
emilmont 1:fdd22bb7aa52 6844 * @ingroup groupInterpolation
emilmont 1:fdd22bb7aa52 6845 */
emilmont 1:fdd22bb7aa52 6846
emilmont 1:fdd22bb7aa52 6847 /**
emilmont 1:fdd22bb7aa52 6848 * @defgroup BilinearInterpolate Bilinear Interpolation
emilmont 1:fdd22bb7aa52 6849 *
emilmont 1:fdd22bb7aa52 6850 * Bilinear interpolation is an extension of linear interpolation applied to a two dimensional grid.
emilmont 1:fdd22bb7aa52 6851 * The underlying function <code>f(x, y)</code> is sampled on a regular grid and the interpolation process
emilmont 1:fdd22bb7aa52 6852 * determines values between the grid points.
emilmont 1:fdd22bb7aa52 6853 * Bilinear interpolation is equivalent to two step linear interpolation, first in the x-dimension and then in the y-dimension.
emilmont 1:fdd22bb7aa52 6854 * Bilinear interpolation is often used in image processing to rescale images.
emilmont 1:fdd22bb7aa52 6855 * The CMSIS DSP library provides bilinear interpolation functions for Q7, Q15, Q31, and floating-point data types.
emilmont 1:fdd22bb7aa52 6856 *
emilmont 1:fdd22bb7aa52 6857 * <b>Algorithm</b>
emilmont 1:fdd22bb7aa52 6858 * \par
emilmont 1:fdd22bb7aa52 6859 * The instance structure used by the bilinear interpolation functions describes a two dimensional data table.
emilmont 1:fdd22bb7aa52 6860 * For floating-point, the instance structure is defined as:
emilmont 1:fdd22bb7aa52 6861 * <pre>
emilmont 1:fdd22bb7aa52 6862 * typedef struct
emilmont 1:fdd22bb7aa52 6863 * {
emilmont 1:fdd22bb7aa52 6864 * uint16_t numRows;
emilmont 1:fdd22bb7aa52 6865 * uint16_t numCols;
emilmont 1:fdd22bb7aa52 6866 * float32_t *pData;
emilmont 1:fdd22bb7aa52 6867 * } arm_bilinear_interp_instance_f32;
emilmont 1:fdd22bb7aa52 6868 * </pre>
emilmont 1:fdd22bb7aa52 6869 *
emilmont 1:fdd22bb7aa52 6870 * \par
emilmont 1:fdd22bb7aa52 6871 * where <code>numRows</code> specifies the number of rows in the table;
emilmont 1:fdd22bb7aa52 6872 * <code>numCols</code> specifies the number of columns in the table;
emilmont 1:fdd22bb7aa52 6873 * and <code>pData</code> points to an array of size <code>numRows*numCols</code> values.
emilmont 1:fdd22bb7aa52 6874 * The data table <code>pTable</code> is organized in row order and the supplied data values fall on integer indexes.
emilmont 1:fdd22bb7aa52 6875 * That is, table element (x,y) is located at <code>pTable[x + y*numCols]</code> where x and y are integers.
emilmont 1:fdd22bb7aa52 6876 *
emilmont 1:fdd22bb7aa52 6877 * \par
emilmont 1:fdd22bb7aa52 6878 * Let <code>(x, y)</code> specify the desired interpolation point. Then define:
emilmont 1:fdd22bb7aa52 6879 * <pre>
emilmont 1:fdd22bb7aa52 6880 * XF = floor(x)
emilmont 1:fdd22bb7aa52 6881 * YF = floor(y)
emilmont 1:fdd22bb7aa52 6882 * </pre>
emilmont 1:fdd22bb7aa52 6883 * \par
emilmont 1:fdd22bb7aa52 6884 * The interpolated output point is computed as:
emilmont 1:fdd22bb7aa52 6885 * <pre>
emilmont 1:fdd22bb7aa52 6886 * f(x, y) = f(XF, YF) * (1-(x-XF)) * (1-(y-YF))
emilmont 1:fdd22bb7aa52 6887 * + f(XF+1, YF) * (x-XF)*(1-(y-YF))
emilmont 1:fdd22bb7aa52 6888 * + f(XF, YF+1) * (1-(x-XF))*(y-YF)
emilmont 1:fdd22bb7aa52 6889 * + f(XF+1, YF+1) * (x-XF)*(y-YF)
emilmont 1:fdd22bb7aa52 6890 * </pre>
mbed_official 3:7a284390b0ce 6891 * Note that the coordinates (x, y) contain integer and fractional components.
emilmont 1:fdd22bb7aa52 6892 * The integer components specify which portion of the table to use while the
emilmont 1:fdd22bb7aa52 6893 * fractional components control the interpolation processor.
emilmont 1:fdd22bb7aa52 6894 *
emilmont 1:fdd22bb7aa52 6895 * \par
mbed_official 3:7a284390b0ce 6896 * if (x,y) are outside of the table boundary, Bilinear interpolation returns zero output.
emilmont 1:fdd22bb7aa52 6897 */
emilmont 1:fdd22bb7aa52 6898
emilmont 1:fdd22bb7aa52 6899 /**
emilmont 1:fdd22bb7aa52 6900 * @addtogroup BilinearInterpolate
emilmont 1:fdd22bb7aa52 6901 * @{
emilmont 1:fdd22bb7aa52 6902 */
emilmont 1:fdd22bb7aa52 6903
emilmont 1:fdd22bb7aa52 6904 /**
emilmont 1:fdd22bb7aa52 6905 *
emilmont 1:fdd22bb7aa52 6906 * @brief Floating-point bilinear interpolation.
emilmont 1:fdd22bb7aa52 6907 * @param[in,out] *S points to an instance of the interpolation structure.
emilmont 1:fdd22bb7aa52 6908 * @param[in] X interpolation coordinate.
emilmont 1:fdd22bb7aa52 6909 * @param[in] Y interpolation coordinate.
emilmont 1:fdd22bb7aa52 6910 * @return out interpolated value.
emilmont 1:fdd22bb7aa52 6911 */
emilmont 1:fdd22bb7aa52 6912
emilmont 1:fdd22bb7aa52 6913
mbed_official 3:7a284390b0ce 6914 static __INLINE float32_t arm_bilinear_interp_f32(
emilmont 1:fdd22bb7aa52 6915 const arm_bilinear_interp_instance_f32 * S,
emilmont 1:fdd22bb7aa52 6916 float32_t X,
emilmont 1:fdd22bb7aa52 6917 float32_t Y)
emilmont 1:fdd22bb7aa52 6918 {
emilmont 1:fdd22bb7aa52 6919 float32_t out;
emilmont 1:fdd22bb7aa52 6920 float32_t f00, f01, f10, f11;
emilmont 1:fdd22bb7aa52 6921 float32_t *pData = S->pData;
emilmont 1:fdd22bb7aa52 6922 int32_t xIndex, yIndex, index;
emilmont 1:fdd22bb7aa52 6923 float32_t xdiff, ydiff;
emilmont 1:fdd22bb7aa52 6924 float32_t b1, b2, b3, b4;
emilmont 1:fdd22bb7aa52 6925
emilmont 1:fdd22bb7aa52 6926 xIndex = (int32_t) X;
emilmont 1:fdd22bb7aa52 6927 yIndex = (int32_t) Y;
emilmont 1:fdd22bb7aa52 6928
emilmont 1:fdd22bb7aa52 6929 /* Care taken for table outside boundary */
emilmont 1:fdd22bb7aa52 6930 /* Returns zero output when values are outside table boundary */
emilmont 1:fdd22bb7aa52 6931 if(xIndex < 0 || xIndex > (S->numRows - 1) || yIndex < 0
emilmont 1:fdd22bb7aa52 6932 || yIndex > (S->numCols - 1))
emilmont 1:fdd22bb7aa52 6933 {
emilmont 1:fdd22bb7aa52 6934 return (0);
emilmont 1:fdd22bb7aa52 6935 }
emilmont 1:fdd22bb7aa52 6936
emilmont 1:fdd22bb7aa52 6937 /* Calculation of index for two nearest points in X-direction */
emilmont 1:fdd22bb7aa52 6938 index = (xIndex - 1) + (yIndex - 1) * S->numCols;
emilmont 1:fdd22bb7aa52 6939
emilmont 1:fdd22bb7aa52 6940
emilmont 1:fdd22bb7aa52 6941 /* Read two nearest points in X-direction */
emilmont 1:fdd22bb7aa52 6942 f00 = pData[index];
emilmont 1:fdd22bb7aa52 6943 f01 = pData[index + 1];
emilmont 1:fdd22bb7aa52 6944
emilmont 1:fdd22bb7aa52 6945 /* Calculation of index for two nearest points in Y-direction */
emilmont 1:fdd22bb7aa52 6946 index = (xIndex - 1) + (yIndex) * S->numCols;
emilmont 1:fdd22bb7aa52 6947
emilmont 1:fdd22bb7aa52 6948
emilmont 1:fdd22bb7aa52 6949 /* Read two nearest points in Y-direction */
emilmont 1:fdd22bb7aa52 6950 f10 = pData[index];
emilmont 1:fdd22bb7aa52 6951 f11 = pData[index + 1];
emilmont 1:fdd22bb7aa52 6952
emilmont 1:fdd22bb7aa52 6953 /* Calculation of intermediate values */
emilmont 1:fdd22bb7aa52 6954 b1 = f00;
emilmont 1:fdd22bb7aa52 6955 b2 = f01 - f00;
emilmont 1:fdd22bb7aa52 6956 b3 = f10 - f00;
emilmont 1:fdd22bb7aa52 6957 b4 = f00 - f01 - f10 + f11;
emilmont 1:fdd22bb7aa52 6958
emilmont 1:fdd22bb7aa52 6959 /* Calculation of fractional part in X */
emilmont 1:fdd22bb7aa52 6960 xdiff = X - xIndex;
emilmont 1:fdd22bb7aa52 6961
emilmont 1:fdd22bb7aa52 6962 /* Calculation of fractional part in Y */
emilmont 1:fdd22bb7aa52 6963 ydiff = Y - yIndex;
emilmont 1:fdd22bb7aa52 6964
emilmont 1:fdd22bb7aa52 6965 /* Calculation of bi-linear interpolated output */
emilmont 1:fdd22bb7aa52 6966 out = b1 + b2 * xdiff + b3 * ydiff + b4 * xdiff * ydiff;
emilmont 1:fdd22bb7aa52 6967
emilmont 1:fdd22bb7aa52 6968 /* return to application */
emilmont 1:fdd22bb7aa52 6969 return (out);
emilmont 1:fdd22bb7aa52 6970
emilmont 1:fdd22bb7aa52 6971 }
emilmont 1:fdd22bb7aa52 6972
emilmont 1:fdd22bb7aa52 6973 /**
emilmont 1:fdd22bb7aa52 6974 *
emilmont 1:fdd22bb7aa52 6975 * @brief Q31 bilinear interpolation.
emilmont 1:fdd22bb7aa52 6976 * @param[in,out] *S points to an instance of the interpolation structure.
emilmont 1:fdd22bb7aa52 6977 * @param[in] X interpolation coordinate in 12.20 format.
emilmont 1:fdd22bb7aa52 6978 * @param[in] Y interpolation coordinate in 12.20 format.
emilmont 1:fdd22bb7aa52 6979 * @return out interpolated value.
emilmont 1:fdd22bb7aa52 6980 */
emilmont 1:fdd22bb7aa52 6981
mbed_official 3:7a284390b0ce 6982 static __INLINE q31_t arm_bilinear_interp_q31(
emilmont 1:fdd22bb7aa52 6983 arm_bilinear_interp_instance_q31 * S,
emilmont 1:fdd22bb7aa52 6984 q31_t X,
emilmont 1:fdd22bb7aa52 6985 q31_t Y)
emilmont 1:fdd22bb7aa52 6986 {
emilmont 1:fdd22bb7aa52 6987 q31_t out; /* Temporary output */
emilmont 1:fdd22bb7aa52 6988 q31_t acc = 0; /* output */
emilmont 1:fdd22bb7aa52 6989 q31_t xfract, yfract; /* X, Y fractional parts */
emilmont 1:fdd22bb7aa52 6990 q31_t x1, x2, y1, y2; /* Nearest output values */
emilmont 1:fdd22bb7aa52 6991 int32_t rI, cI; /* Row and column indices */
emilmont 1:fdd22bb7aa52 6992 q31_t *pYData = S->pData; /* pointer to output table values */
emilmont 1:fdd22bb7aa52 6993 uint32_t nCols = S->numCols; /* num of rows */
emilmont 1:fdd22bb7aa52 6994
emilmont 1:fdd22bb7aa52 6995
emilmont 1:fdd22bb7aa52 6996 /* Input is in 12.20 format */
emilmont 1:fdd22bb7aa52 6997 /* 12 bits for the table index */
emilmont 1:fdd22bb7aa52 6998 /* Index value calculation */
emilmont 1:fdd22bb7aa52 6999 rI = ((X & 0xFFF00000) >> 20u);
emilmont 1:fdd22bb7aa52 7000
emilmont 1:fdd22bb7aa52 7001 /* Input is in 12.20 format */
emilmont 1:fdd22bb7aa52 7002 /* 12 bits for the table index */
emilmont 1:fdd22bb7aa52 7003 /* Index value calculation */
emilmont 1:fdd22bb7aa52 7004 cI = ((Y & 0xFFF00000) >> 20u);
emilmont 1:fdd22bb7aa52 7005
emilmont 1:fdd22bb7aa52 7006 /* Care taken for table outside boundary */
emilmont 1:fdd22bb7aa52 7007 /* Returns zero output when values are outside table boundary */
emilmont 1:fdd22bb7aa52 7008 if(rI < 0 || rI > (S->numRows - 1) || cI < 0 || cI > (S->numCols - 1))
emilmont 1:fdd22bb7aa52 7009 {
emilmont 1:fdd22bb7aa52 7010 return (0);
emilmont 1:fdd22bb7aa52 7011 }
emilmont 1:fdd22bb7aa52 7012
emilmont 1:fdd22bb7aa52 7013 /* 20 bits for the fractional part */
emilmont 1:fdd22bb7aa52 7014 /* shift left xfract by 11 to keep 1.31 format */
emilmont 1:fdd22bb7aa52 7015 xfract = (X & 0x000FFFFF) << 11u;
emilmont 1:fdd22bb7aa52 7016
emilmont 1:fdd22bb7aa52 7017 /* Read two nearest output values from the index */
emilmont 1:fdd22bb7aa52 7018 x1 = pYData[(rI) + nCols * (cI)];
emilmont 1:fdd22bb7aa52 7019 x2 = pYData[(rI) + nCols * (cI) + 1u];
emilmont 1:fdd22bb7aa52 7020
emilmont 1:fdd22bb7aa52 7021 /* 20 bits for the fractional part */
emilmont 1:fdd22bb7aa52 7022 /* shift left yfract by 11 to keep 1.31 format */
emilmont 1:fdd22bb7aa52 7023 yfract = (Y & 0x000FFFFF) << 11u;
emilmont 1:fdd22bb7aa52 7024
emilmont 1:fdd22bb7aa52 7025 /* Read two nearest output values from the index */
emilmont 1:fdd22bb7aa52 7026 y1 = pYData[(rI) + nCols * (cI + 1)];
emilmont 1:fdd22bb7aa52 7027 y2 = pYData[(rI) + nCols * (cI + 1) + 1u];
emilmont 1:fdd22bb7aa52 7028
emilmont 1:fdd22bb7aa52 7029 /* Calculation of x1 * (1-xfract ) * (1-yfract) and acc is in 3.29(q29) format */
emilmont 1:fdd22bb7aa52 7030 out = ((q31_t) (((q63_t) x1 * (0x7FFFFFFF - xfract)) >> 32));
emilmont 1:fdd22bb7aa52 7031 acc = ((q31_t) (((q63_t) out * (0x7FFFFFFF - yfract)) >> 32));
emilmont 1:fdd22bb7aa52 7032
emilmont 1:fdd22bb7aa52 7033 /* x2 * (xfract) * (1-yfract) in 3.29(q29) and adding to acc */
emilmont 1:fdd22bb7aa52 7034 out = ((q31_t) ((q63_t) x2 * (0x7FFFFFFF - yfract) >> 32));
emilmont 1:fdd22bb7aa52 7035 acc += ((q31_t) ((q63_t) out * (xfract) >> 32));
emilmont 1:fdd22bb7aa52 7036
emilmont 1:fdd22bb7aa52 7037 /* y1 * (1 - xfract) * (yfract) in 3.29(q29) and adding to acc */
emilmont 1:fdd22bb7aa52 7038 out = ((q31_t) ((q63_t) y1 * (0x7FFFFFFF - xfract) >> 32));
emilmont 1:fdd22bb7aa52 7039 acc += ((q31_t) ((q63_t) out * (yfract) >> 32));
emilmont 1:fdd22bb7aa52 7040
emilmont 1:fdd22bb7aa52 7041 /* y2 * (xfract) * (yfract) in 3.29(q29) and adding to acc */
emilmont 1:fdd22bb7aa52 7042 out = ((q31_t) ((q63_t) y2 * (xfract) >> 32));
emilmont 1:fdd22bb7aa52 7043 acc += ((q31_t) ((q63_t) out * (yfract) >> 32));
emilmont 1:fdd22bb7aa52 7044
emilmont 1:fdd22bb7aa52 7045 /* Convert acc to 1.31(q31) format */
emilmont 1:fdd22bb7aa52 7046 return (acc << 2u);
emilmont 1:fdd22bb7aa52 7047
emilmont 1:fdd22bb7aa52 7048 }
emilmont 1:fdd22bb7aa52 7049
emilmont 1:fdd22bb7aa52 7050 /**
emilmont 1:fdd22bb7aa52 7051 * @brief Q15 bilinear interpolation.
emilmont 1:fdd22bb7aa52 7052 * @param[in,out] *S points to an instance of the interpolation structure.
emilmont 1:fdd22bb7aa52 7053 * @param[in] X interpolation coordinate in 12.20 format.
emilmont 1:fdd22bb7aa52 7054 * @param[in] Y interpolation coordinate in 12.20 format.
emilmont 1:fdd22bb7aa52 7055 * @return out interpolated value.
emilmont 1:fdd22bb7aa52 7056 */
emilmont 1:fdd22bb7aa52 7057
mbed_official 3:7a284390b0ce 7058 static __INLINE q15_t arm_bilinear_interp_q15(
emilmont 1:fdd22bb7aa52 7059 arm_bilinear_interp_instance_q15 * S,
emilmont 1:fdd22bb7aa52 7060 q31_t X,
emilmont 1:fdd22bb7aa52 7061 q31_t Y)
emilmont 1:fdd22bb7aa52 7062 {
emilmont 1:fdd22bb7aa52 7063 q63_t acc = 0; /* output */
emilmont 1:fdd22bb7aa52 7064 q31_t out; /* Temporary output */
emilmont 1:fdd22bb7aa52 7065 q15_t x1, x2, y1, y2; /* Nearest output values */
emilmont 1:fdd22bb7aa52 7066 q31_t xfract, yfract; /* X, Y fractional parts */
emilmont 1:fdd22bb7aa52 7067 int32_t rI, cI; /* Row and column indices */
emilmont 1:fdd22bb7aa52 7068 q15_t *pYData = S->pData; /* pointer to output table values */
emilmont 1:fdd22bb7aa52 7069 uint32_t nCols = S->numCols; /* num of rows */
emilmont 1:fdd22bb7aa52 7070
emilmont 1:fdd22bb7aa52 7071 /* Input is in 12.20 format */
emilmont 1:fdd22bb7aa52 7072 /* 12 bits for the table index */
emilmont 1:fdd22bb7aa52 7073 /* Index value calculation */
emilmont 1:fdd22bb7aa52 7074 rI = ((X & 0xFFF00000) >> 20);
emilmont 1:fdd22bb7aa52 7075
emilmont 1:fdd22bb7aa52 7076 /* Input is in 12.20 format */
emilmont 1:fdd22bb7aa52 7077 /* 12 bits for the table index */
emilmont 1:fdd22bb7aa52 7078 /* Index value calculation */
emilmont 1:fdd22bb7aa52 7079 cI = ((Y & 0xFFF00000) >> 20);
emilmont 1:fdd22bb7aa52 7080
emilmont 1:fdd22bb7aa52 7081 /* Care taken for table outside boundary */
emilmont 1:fdd22bb7aa52 7082 /* Returns zero output when values are outside table boundary */
emilmont 1:fdd22bb7aa52 7083 if(rI < 0 || rI > (S->numRows - 1) || cI < 0 || cI > (S->numCols - 1))
emilmont 1:fdd22bb7aa52 7084 {
emilmont 1:fdd22bb7aa52 7085 return (0);
emilmont 1:fdd22bb7aa52 7086 }
emilmont 1:fdd22bb7aa52 7087
emilmont 1:fdd22bb7aa52 7088 /* 20 bits for the fractional part */
emilmont 1:fdd22bb7aa52 7089 /* xfract should be in 12.20 format */
emilmont 1:fdd22bb7aa52 7090 xfract = (X & 0x000FFFFF);
emilmont 1:fdd22bb7aa52 7091
emilmont 1:fdd22bb7aa52 7092 /* Read two nearest output values from the index */
emilmont 1:fdd22bb7aa52 7093 x1 = pYData[(rI) + nCols * (cI)];
emilmont 1:fdd22bb7aa52 7094 x2 = pYData[(rI) + nCols * (cI) + 1u];
emilmont 1:fdd22bb7aa52 7095
emilmont 1:fdd22bb7aa52 7096
emilmont 1:fdd22bb7aa52 7097 /* 20 bits for the fractional part */
emilmont 1:fdd22bb7aa52 7098 /* yfract should be in 12.20 format */
emilmont 1:fdd22bb7aa52 7099 yfract = (Y & 0x000FFFFF);
emilmont 1:fdd22bb7aa52 7100
emilmont 1:fdd22bb7aa52 7101 /* Read two nearest output values from the index */
emilmont 1:fdd22bb7aa52 7102 y1 = pYData[(rI) + nCols * (cI + 1)];
emilmont 1:fdd22bb7aa52 7103 y2 = pYData[(rI) + nCols * (cI + 1) + 1u];
emilmont 1:fdd22bb7aa52 7104
emilmont 1:fdd22bb7aa52 7105 /* Calculation of x1 * (1-xfract ) * (1-yfract) and acc is in 13.51 format */
emilmont 1:fdd22bb7aa52 7106
emilmont 1:fdd22bb7aa52 7107 /* x1 is in 1.15(q15), xfract in 12.20 format and out is in 13.35 format */
emilmont 1:fdd22bb7aa52 7108 /* convert 13.35 to 13.31 by right shifting and out is in 1.31 */
emilmont 1:fdd22bb7aa52 7109 out = (q31_t) (((q63_t) x1 * (0xFFFFF - xfract)) >> 4u);
emilmont 1:fdd22bb7aa52 7110 acc = ((q63_t) out * (0xFFFFF - yfract));
emilmont 1:fdd22bb7aa52 7111
emilmont 1:fdd22bb7aa52 7112 /* x2 * (xfract) * (1-yfract) in 1.51 and adding to acc */
emilmont 1:fdd22bb7aa52 7113 out = (q31_t) (((q63_t) x2 * (0xFFFFF - yfract)) >> 4u);
emilmont 1:fdd22bb7aa52 7114 acc += ((q63_t) out * (xfract));
emilmont 1:fdd22bb7aa52 7115
emilmont 1:fdd22bb7aa52 7116 /* y1 * (1 - xfract) * (yfract) in 1.51 and adding to acc */
emilmont 1:fdd22bb7aa52 7117 out = (q31_t) (((q63_t) y1 * (0xFFFFF - xfract)) >> 4u);
emilmont 1:fdd22bb7aa52 7118 acc += ((q63_t) out * (yfract));
emilmont 1:fdd22bb7aa52 7119
emilmont 1:fdd22bb7aa52 7120 /* y2 * (xfract) * (yfract) in 1.51 and adding to acc */
emilmont 1:fdd22bb7aa52 7121 out = (q31_t) (((q63_t) y2 * (xfract)) >> 4u);
emilmont 1:fdd22bb7aa52 7122 acc += ((q63_t) out * (yfract));
emilmont 1:fdd22bb7aa52 7123
emilmont 1:fdd22bb7aa52 7124 /* acc is in 13.51 format and down shift acc by 36 times */
emilmont 1:fdd22bb7aa52 7125 /* Convert out to 1.15 format */
emilmont 1:fdd22bb7aa52 7126 return (acc >> 36);
emilmont 1:fdd22bb7aa52 7127
emilmont 1:fdd22bb7aa52 7128 }
emilmont 1:fdd22bb7aa52 7129
emilmont 1:fdd22bb7aa52 7130 /**
emilmont 1:fdd22bb7aa52 7131 * @brief Q7 bilinear interpolation.
emilmont 1:fdd22bb7aa52 7132 * @param[in,out] *S points to an instance of the interpolation structure.
emilmont 1:fdd22bb7aa52 7133 * @param[in] X interpolation coordinate in 12.20 format.
emilmont 1:fdd22bb7aa52 7134 * @param[in] Y interpolation coordinate in 12.20 format.
emilmont 1:fdd22bb7aa52 7135 * @return out interpolated value.
emilmont 1:fdd22bb7aa52 7136 */
emilmont 1:fdd22bb7aa52 7137
mbed_official 3:7a284390b0ce 7138 static __INLINE q7_t arm_bilinear_interp_q7(
emilmont 1:fdd22bb7aa52 7139 arm_bilinear_interp_instance_q7 * S,
emilmont 1:fdd22bb7aa52 7140 q31_t X,
emilmont 1:fdd22bb7aa52 7141 q31_t Y)
emilmont 1:fdd22bb7aa52 7142 {
emilmont 1:fdd22bb7aa52 7143 q63_t acc = 0; /* output */
emilmont 1:fdd22bb7aa52 7144 q31_t out; /* Temporary output */
emilmont 1:fdd22bb7aa52 7145 q31_t xfract, yfract; /* X, Y fractional parts */
emilmont 1:fdd22bb7aa52 7146 q7_t x1, x2, y1, y2; /* Nearest output values */
emilmont 1:fdd22bb7aa52 7147 int32_t rI, cI; /* Row and column indices */
emilmont 1:fdd22bb7aa52 7148 q7_t *pYData = S->pData; /* pointer to output table values */
emilmont 1:fdd22bb7aa52 7149 uint32_t nCols = S->numCols; /* num of rows */
emilmont 1:fdd22bb7aa52 7150
emilmont 1:fdd22bb7aa52 7151 /* Input is in 12.20 format */
emilmont 1:fdd22bb7aa52 7152 /* 12 bits for the table index */
emilmont 1:fdd22bb7aa52 7153 /* Index value calculation */
emilmont 1:fdd22bb7aa52 7154 rI = ((X & 0xFFF00000) >> 20);
emilmont 1:fdd22bb7aa52 7155
emilmont 1:fdd22bb7aa52 7156 /* Input is in 12.20 format */
emilmont 1:fdd22bb7aa52 7157 /* 12 bits for the table index */
emilmont 1:fdd22bb7aa52 7158 /* Index value calculation */
emilmont 1:fdd22bb7aa52 7159 cI = ((Y & 0xFFF00000) >> 20);
emilmont 1:fdd22bb7aa52 7160
emilmont 1:fdd22bb7aa52 7161 /* Care taken for table outside boundary */
emilmont 1:fdd22bb7aa52 7162 /* Returns zero output when values are outside table boundary */
emilmont 1:fdd22bb7aa52 7163 if(rI < 0 || rI > (S->numRows - 1) || cI < 0 || cI > (S->numCols - 1))
emilmont 1:fdd22bb7aa52 7164 {
emilmont 1:fdd22bb7aa52 7165 return (0);
emilmont 1:fdd22bb7aa52 7166 }
emilmont 1:fdd22bb7aa52 7167
emilmont 1:fdd22bb7aa52 7168 /* 20 bits for the fractional part */
emilmont 1:fdd22bb7aa52 7169 /* xfract should be in 12.20 format */
emilmont 1:fdd22bb7aa52 7170 xfract = (X & 0x000FFFFF);
emilmont 1:fdd22bb7aa52 7171
emilmont 1:fdd22bb7aa52 7172 /* Read two nearest output values from the index */
emilmont 1:fdd22bb7aa52 7173 x1 = pYData[(rI) + nCols * (cI)];
emilmont 1:fdd22bb7aa52 7174 x2 = pYData[(rI) + nCols * (cI) + 1u];
emilmont 1:fdd22bb7aa52 7175
emilmont 1:fdd22bb7aa52 7176
emilmont 1:fdd22bb7aa52 7177 /* 20 bits for the fractional part */
emilmont 1:fdd22bb7aa52 7178 /* yfract should be in 12.20 format */
emilmont 1:fdd22bb7aa52 7179 yfract = (Y & 0x000FFFFF);
emilmont 1:fdd22bb7aa52 7180
emilmont 1:fdd22bb7aa52 7181 /* Read two nearest output values from the index */
emilmont 1:fdd22bb7aa52 7182 y1 = pYData[(rI) + nCols * (cI + 1)];
emilmont 1:fdd22bb7aa52 7183 y2 = pYData[(rI) + nCols * (cI + 1) + 1u];
emilmont 1:fdd22bb7aa52 7184
emilmont 1:fdd22bb7aa52 7185 /* Calculation of x1 * (1-xfract ) * (1-yfract) and acc is in 16.47 format */
emilmont 1:fdd22bb7aa52 7186 out = ((x1 * (0xFFFFF - xfract)));
emilmont 1:fdd22bb7aa52 7187 acc = (((q63_t) out * (0xFFFFF - yfract)));
emilmont 1:fdd22bb7aa52 7188
emilmont 1:fdd22bb7aa52 7189 /* x2 * (xfract) * (1-yfract) in 2.22 and adding to acc */
emilmont 1:fdd22bb7aa52 7190 out = ((x2 * (0xFFFFF - yfract)));
emilmont 1:fdd22bb7aa52 7191 acc += (((q63_t) out * (xfract)));
emilmont 1:fdd22bb7aa52 7192
emilmont 1:fdd22bb7aa52 7193 /* y1 * (1 - xfract) * (yfract) in 2.22 and adding to acc */
emilmont 1:fdd22bb7aa52 7194 out = ((y1 * (0xFFFFF - xfract)));
emilmont 1:fdd22bb7aa52 7195 acc += (((q63_t) out * (yfract)));
emilmont 1:fdd22bb7aa52 7196
emilmont 1:fdd22bb7aa52 7197 /* y2 * (xfract) * (yfract) in 2.22 and adding to acc */
emilmont 1:fdd22bb7aa52 7198 out = ((y2 * (yfract)));
emilmont 1:fdd22bb7aa52 7199 acc += (((q63_t) out * (xfract)));
emilmont 1:fdd22bb7aa52 7200
emilmont 1:fdd22bb7aa52 7201 /* acc in 16.47 format and down shift by 40 to convert to 1.7 format */
emilmont 1:fdd22bb7aa52 7202 return (acc >> 40);
emilmont 1:fdd22bb7aa52 7203
emilmont 1:fdd22bb7aa52 7204 }
emilmont 1:fdd22bb7aa52 7205
emilmont 1:fdd22bb7aa52 7206 /**
emilmont 1:fdd22bb7aa52 7207 * @} end of BilinearInterpolate group
emilmont 1:fdd22bb7aa52 7208 */
emilmont 1:fdd22bb7aa52 7209
emilmont 1:fdd22bb7aa52 7210
mbed_official 3:7a284390b0ce 7211 #if defined ( __CC_ARM ) //Keil
mbed_official 3:7a284390b0ce 7212 //SMMLAR
mbed_official 3:7a284390b0ce 7213 #define multAcc_32x32_keep32_R(a, x, y) \
mbed_official 3:7a284390b0ce 7214 a = (q31_t) (((((q63_t) a) << 32) + ((q63_t) x * y) + 0x80000000LL ) >> 32)
mbed_official 3:7a284390b0ce 7215
mbed_official 3:7a284390b0ce 7216 //SMMLSR
mbed_official 3:7a284390b0ce 7217 #define multSub_32x32_keep32_R(a, x, y) \
mbed_official 3:7a284390b0ce 7218 a = (q31_t) (((((q63_t) a) << 32) - ((q63_t) x * y) + 0x80000000LL ) >> 32)
mbed_official 3:7a284390b0ce 7219
mbed_official 3:7a284390b0ce 7220 //SMMULR
mbed_official 3:7a284390b0ce 7221 #define mult_32x32_keep32_R(a, x, y) \
mbed_official 3:7a284390b0ce 7222 a = (q31_t) (((q63_t) x * y + 0x80000000LL ) >> 32)
mbed_official 3:7a284390b0ce 7223
mbed_official 3:7a284390b0ce 7224 //Enter low optimization region - place directly above function definition
mbed_official 3:7a284390b0ce 7225 #define LOW_OPTIMIZATION_ENTER \
mbed_official 3:7a284390b0ce 7226 _Pragma ("push") \
mbed_official 3:7a284390b0ce 7227 _Pragma ("O1")
mbed_official 3:7a284390b0ce 7228
mbed_official 3:7a284390b0ce 7229 //Exit low optimization region - place directly after end of function definition
mbed_official 3:7a284390b0ce 7230 #define LOW_OPTIMIZATION_EXIT \
mbed_official 3:7a284390b0ce 7231 _Pragma ("pop")
mbed_official 3:7a284390b0ce 7232
mbed_official 3:7a284390b0ce 7233 //Enter low optimization region - place directly above function definition
mbed_official 3:7a284390b0ce 7234 #define IAR_ONLY_LOW_OPTIMIZATION_ENTER
mbed_official 3:7a284390b0ce 7235
mbed_official 3:7a284390b0ce 7236 //Exit low optimization region - place directly after end of function definition
mbed_official 3:7a284390b0ce 7237 #define IAR_ONLY_LOW_OPTIMIZATION_EXIT
mbed_official 3:7a284390b0ce 7238
mbed_official 3:7a284390b0ce 7239 #elif defined(__ICCARM__) //IAR
mbed_official 3:7a284390b0ce 7240 //SMMLA
mbed_official 3:7a284390b0ce 7241 #define multAcc_32x32_keep32_R(a, x, y) \
mbed_official 3:7a284390b0ce 7242 a += (q31_t) (((q63_t) x * y) >> 32)
mbed_official 3:7a284390b0ce 7243
mbed_official 3:7a284390b0ce 7244 //SMMLS
mbed_official 3:7a284390b0ce 7245 #define multSub_32x32_keep32_R(a, x, y) \
mbed_official 3:7a284390b0ce 7246 a -= (q31_t) (((q63_t) x * y) >> 32)
mbed_official 3:7a284390b0ce 7247
mbed_official 3:7a284390b0ce 7248 //SMMUL
mbed_official 3:7a284390b0ce 7249 #define mult_32x32_keep32_R(a, x, y) \
mbed_official 3:7a284390b0ce 7250 a = (q31_t) (((q63_t) x * y ) >> 32)
mbed_official 3:7a284390b0ce 7251
mbed_official 3:7a284390b0ce 7252 //Enter low optimization region - place directly above function definition
mbed_official 3:7a284390b0ce 7253 #define LOW_OPTIMIZATION_ENTER \
mbed_official 3:7a284390b0ce 7254 _Pragma ("optimize=low")
mbed_official 3:7a284390b0ce 7255
mbed_official 3:7a284390b0ce 7256 //Exit low optimization region - place directly after end of function definition
mbed_official 3:7a284390b0ce 7257 #define LOW_OPTIMIZATION_EXIT
mbed_official 3:7a284390b0ce 7258
mbed_official 3:7a284390b0ce 7259 //Enter low optimization region - place directly above function definition
mbed_official 3:7a284390b0ce 7260 #define IAR_ONLY_LOW_OPTIMIZATION_ENTER \
mbed_official 3:7a284390b0ce 7261 _Pragma ("optimize=low")
mbed_official 3:7a284390b0ce 7262
mbed_official 3:7a284390b0ce 7263 //Exit low optimization region - place directly after end of function definition
mbed_official 3:7a284390b0ce 7264 #define IAR_ONLY_LOW_OPTIMIZATION_EXIT
mbed_official 3:7a284390b0ce 7265
mbed_official 3:7a284390b0ce 7266 #elif defined(__GNUC__)
mbed_official 3:7a284390b0ce 7267 //SMMLA
mbed_official 3:7a284390b0ce 7268 #define multAcc_32x32_keep32_R(a, x, y) \
mbed_official 3:7a284390b0ce 7269 a += (q31_t) (((q63_t) x * y) >> 32)
mbed_official 3:7a284390b0ce 7270
mbed_official 3:7a284390b0ce 7271 //SMMLS
mbed_official 3:7a284390b0ce 7272 #define multSub_32x32_keep32_R(a, x, y) \
mbed_official 3:7a284390b0ce 7273 a -= (q31_t) (((q63_t) x * y) >> 32)
mbed_official 3:7a284390b0ce 7274
mbed_official 3:7a284390b0ce 7275 //SMMUL
mbed_official 3:7a284390b0ce 7276 #define mult_32x32_keep32_R(a, x, y) \
mbed_official 3:7a284390b0ce 7277 a = (q31_t) (((q63_t) x * y ) >> 32)
mbed_official 3:7a284390b0ce 7278
mbed_official 3:7a284390b0ce 7279 #define LOW_OPTIMIZATION_ENTER __attribute__(( optimize("-O1") ))
mbed_official 3:7a284390b0ce 7280
mbed_official 3:7a284390b0ce 7281 #define LOW_OPTIMIZATION_EXIT
mbed_official 3:7a284390b0ce 7282
mbed_official 3:7a284390b0ce 7283 #define IAR_ONLY_LOW_OPTIMIZATION_ENTER
mbed_official 3:7a284390b0ce 7284
mbed_official 3:7a284390b0ce 7285 #define IAR_ONLY_LOW_OPTIMIZATION_EXIT
mbed_official 3:7a284390b0ce 7286
mbed_official 3:7a284390b0ce 7287 #endif
mbed_official 3:7a284390b0ce 7288
emilmont 1:fdd22bb7aa52 7289
emilmont 1:fdd22bb7aa52 7290
emilmont 1:fdd22bb7aa52 7291
emilmont 1:fdd22bb7aa52 7292
emilmont 2:da51fb522205 7293 #ifdef __cplusplus
emilmont 1:fdd22bb7aa52 7294 }
emilmont 1:fdd22bb7aa52 7295 #endif
emilmont 1:fdd22bb7aa52 7296
emilmont 1:fdd22bb7aa52 7297
emilmont 1:fdd22bb7aa52 7298 #endif /* _ARM_MATH_H */
emilmont 1:fdd22bb7aa52 7299
emilmont 1:fdd22bb7aa52 7300
emilmont 1:fdd22bb7aa52 7301 /**
emilmont 1:fdd22bb7aa52 7302 *
emilmont 1:fdd22bb7aa52 7303 * End of file.
emilmont 1:fdd22bb7aa52 7304 */