arm_common_tables.h

00001 /* ----------------------------------------------------------------------
00002 * Copyright (C) 2010-2013 ARM Limited. All rights reserved.
00003 *
00004 * $Date:        17. January 2013
00005 * $Revision:    V1.4.1
00006 *
00007 * Project:      CMSIS DSP Library
00008 * Title:        arm_common_tables.h
00009 *
00010 * Description:  This file has extern declaration for common tables like Bitreverse, reciprocal etc which are used across different functions
00011 *
00012 * Target Processor: Cortex-M4/Cortex-M3
00013 *
00014 * Redistribution and use in source and binary forms, with or without
00015 * modification, are permitted provided that the following conditions
00016 * are met:
00017 *   - Redistributions of source code must retain the above copyright
00018 *     notice, this list of conditions and the following disclaimer.
00019 *   - Redistributions in binary form must reproduce the above copyright
00020 *     notice, this list of conditions and the following disclaimer in
00021 *     the documentation and/or other materials provided with the
00022 *     distribution.
00023 *   - Neither the name of ARM LIMITED nor the names of its contributors
00024 *     may be used to endorse or promote products derived from this
00025 *     software without specific prior written permission.
00026 *
00027 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00028 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00029 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
00030 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
00031 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
00032 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
00033 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00034 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00035 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00036 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
00037 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00038 * POSSIBILITY OF SUCH DAMAGE.
00039 * -------------------------------------------------------------------- */
00040 
00041 #ifndef _ARM_COMMON_TABLES_H
00042 #define _ARM_COMMON_TABLES_H
00043 
00044 #include "arm_math.h"
00045 
00046 extern const uint16_t armBitRevTable [1024];
00047 extern const q15_t armRecipTableQ15[64];
00048 extern const q31_t armRecipTableQ31[64];
00049 extern const q31_t realCoefAQ31 [1024];
00050 extern const q31_t realCoefBQ31 [1024];
00051 extern const float32_t twiddleCoef_16 [32];
00052 extern const float32_t twiddleCoef_32 [64];
00053 extern const float32_t twiddleCoef_64 [128];
00054 extern const float32_t twiddleCoef_128 [256];
00055 extern const float32_t twiddleCoef_256 [512];
00056 extern const float32_t twiddleCoef_512 [1024];
00057 extern const float32_t twiddleCoef_1024 [2048];
00058 extern const float32_t twiddleCoef_2048 [4096];
00059 extern const float32_t twiddleCoef_4096 [8192];
00060 #define twiddleCoef twiddleCoef_4096
00061 extern const q31_t twiddleCoefQ31 [6144];
00062 extern const q15_t twiddleCoefQ15 [6144];
00063 extern const float32_t twiddleCoef_rfft_32[32];
00064 extern const float32_t twiddleCoef_rfft_64[64];
00065 extern const float32_t twiddleCoef_rfft_128[128];
00066 extern const float32_t twiddleCoef_rfft_256[256];
00067 extern const float32_t twiddleCoef_rfft_512[512];
00068 extern const float32_t twiddleCoef_rfft_1024[1024];
00069 extern const float32_t twiddleCoef_rfft_2048[2048];
00070 extern const float32_t twiddleCoef_rfft_4096[4096];
00071 
00072 
00073 #define ARMBITREVINDEXTABLE__16_TABLE_LENGTH ((uint16_t)20  )
00074 #define ARMBITREVINDEXTABLE__32_TABLE_LENGTH ((uint16_t)48  )
00075 #define ARMBITREVINDEXTABLE__64_TABLE_LENGTH ((uint16_t)56  )
00076 #define ARMBITREVINDEXTABLE_128_TABLE_LENGTH ((uint16_t)208 )
00077 #define ARMBITREVINDEXTABLE_256_TABLE_LENGTH ((uint16_t)440 )
00078 #define ARMBITREVINDEXTABLE_512_TABLE_LENGTH ((uint16_t)448 )
00079 #define ARMBITREVINDEXTABLE1024_TABLE_LENGTH ((uint16_t)1800)
00080 #define ARMBITREVINDEXTABLE2048_TABLE_LENGTH ((uint16_t)3808)
00081 #define ARMBITREVINDEXTABLE4096_TABLE_LENGTH ((uint16_t)4032)
00082 
00083 extern const uint16_t armBitRevIndexTable16[ARMBITREVINDEXTABLE__16_TABLE_LENGTH];
00084 extern const uint16_t armBitRevIndexTable32[ARMBITREVINDEXTABLE__32_TABLE_LENGTH];
00085 extern const uint16_t armBitRevIndexTable64[ARMBITREVINDEXTABLE__64_TABLE_LENGTH];
00086 extern const uint16_t armBitRevIndexTable128[ARMBITREVINDEXTABLE_128_TABLE_LENGTH];
00087 extern const uint16_t armBitRevIndexTable256[ARMBITREVINDEXTABLE_256_TABLE_LENGTH];
00088 extern const uint16_t armBitRevIndexTable512[ARMBITREVINDEXTABLE_512_TABLE_LENGTH];
00089 extern const uint16_t armBitRevIndexTable1024[ARMBITREVINDEXTABLE1024_TABLE_LENGTH];
00090 extern const uint16_t armBitRevIndexTable2048[ARMBITREVINDEXTABLE2048_TABLE_LENGTH];
00091 extern const uint16_t armBitRevIndexTable4096[ARMBITREVINDEXTABLE4096_TABLE_LENGTH];
00092 
00093 #endif /*  ARM_COMMON_TABLES_H */