tmk_core/tool/mbed/mbed-sdk/libraries/dsp/cmsis_dsp/arm_common_tables.h

   1 /* ----------------------------------------------------------------------
   2 * Copyright (C) 2010-2013 ARM Limited. All rights reserved.
   3 *
   4 * $Date:        17. January 2013
   5 * $Revision:    V1.4.1
   6 *
   7 * Project:      CMSIS DSP Library
   8 * Title:        arm_common_tables.h
   9 *
  10 * Description:  This file has extern declaration for common tables like Bitreverse, reciprocal etc which are used across different functions
  11 *
  12 * Target Processor: Cortex-M4/Cortex-M3
  13 *
  14 * Redistribution and use in source and binary forms, with or without
  15 * modification, are permitted provided that the following conditions
  16 * are met:
  17 *   - Redistributions of source code must retain the above copyright
  18 *     notice, this list of conditions and the following disclaimer.
  19 *   - Redistributions in binary form must reproduce the above copyright
  20 *     notice, this list of conditions and the following disclaimer in
  21 *     the documentation and/or other materials provided with the
  22 *     distribution.
  23 *   - Neither the name of ARM LIMITED nor the names of its contributors
  24 *     may be used to endorse or promote products derived from this
  25 *     software without specific prior written permission.
  26 *
  27 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  28 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  29 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
  30 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
  31 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  32 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
  33 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  34 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  35 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  37 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  38 * POSSIBILITY OF SUCH DAMAGE.
  39 * -------------------------------------------------------------------- */
  40
  41 #ifndef _ARM_COMMON_TABLES_H
  42 #define _ARM_COMMON_TABLES_H
  43
  44 #include "arm_math.h"
  45
  46 extern const uint16_t armBitRevTable[1024];
  47 extern const q15_t armRecipTableQ15[64];
  48 extern const q31_t armRecipTableQ31[64];
  49 extern const q31_t realCoefAQ31[1024];
  50 extern const q31_t realCoefBQ31[1024];
  51 extern const float32_t twiddleCoef_16[32];
  52 extern const float32_t twiddleCoef_32[64];
  53 extern const float32_t twiddleCoef_64[128];
  54 extern const float32_t twiddleCoef_128[256];
  55 extern const float32_t twiddleCoef_256[512];
  56 extern const float32_t twiddleCoef_512[1024];
  57 extern const float32_t twiddleCoef_1024[2048];
  58 extern const float32_t twiddleCoef_2048[4096];
  59 extern const float32_t twiddleCoef_4096[8192];
  60 #define twiddleCoef twiddleCoef_4096
  61 extern const q31_t twiddleCoefQ31[6144];
  62 extern const q15_t twiddleCoefQ15[6144];
  63 extern const float32_t twiddleCoef_rfft_32[32];
  64 extern const float32_t twiddleCoef_rfft_64[64];
  65 extern const float32_t twiddleCoef_rfft_128[128];
  66 extern const float32_t twiddleCoef_rfft_256[256];
  67 extern const float32_t twiddleCoef_rfft_512[512];
  68 extern const float32_t twiddleCoef_rfft_1024[1024];
  69 extern const float32_t twiddleCoef_rfft_2048[2048];
  70 extern const float32_t twiddleCoef_rfft_4096[4096];
  71
  72
  73 #define ARMBITREVINDEXTABLE__16_TABLE_LENGTH ((uint16_t)20  )
  74 #define ARMBITREVINDEXTABLE__32_TABLE_LENGTH ((uint16_t)48  )
  75 #define ARMBITREVINDEXTABLE__64_TABLE_LENGTH ((uint16_t)56  )
  76 #define ARMBITREVINDEXTABLE_128_TABLE_LENGTH ((uint16_t)208 )
  77 #define ARMBITREVINDEXTABLE_256_TABLE_LENGTH ((uint16_t)440 )
  78 #define ARMBITREVINDEXTABLE_512_TABLE_LENGTH ((uint16_t)448 )
  79 #define ARMBITREVINDEXTABLE1024_TABLE_LENGTH ((uint16_t)1800)
  80 #define ARMBITREVINDEXTABLE2048_TABLE_LENGTH ((uint16_t)3808)
  81 #define ARMBITREVINDEXTABLE4096_TABLE_LENGTH ((uint16_t)4032)
  82
  83 extern const uint16_t armBitRevIndexTable16[ARMBITREVINDEXTABLE__16_TABLE_LENGTH];
  84 extern const uint16_t armBitRevIndexTable32[ARMBITREVINDEXTABLE__32_TABLE_LENGTH];
  85 extern const uint16_t armBitRevIndexTable64[ARMBITREVINDEXTABLE__64_TABLE_LENGTH];
  86 extern const uint16_t armBitRevIndexTable128[ARMBITREVINDEXTABLE_128_TABLE_LENGTH];
  87 extern const uint16_t armBitRevIndexTable256[ARMBITREVINDEXTABLE_256_TABLE_LENGTH];
  88 extern const uint16_t armBitRevIndexTable512[ARMBITREVINDEXTABLE_512_TABLE_LENGTH];
  89 extern const uint16_t armBitRevIndexTable1024[ARMBITREVINDEXTABLE1024_TABLE_LENGTH];
  90 extern const uint16_t armBitRevIndexTable2048[ARMBITREVINDEXTABLE2048_TABLE_LENGTH];
  91 extern const uint16_t armBitRevIndexTable4096[ARMBITREVINDEXTABLE4096_TABLE_LENGTH];
  92
  93 #endif /*  ARM_COMMON_TABLES_H */