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| 1 | +/* ---------------------------------------------------------------------- |
| 2 | + * Project: CMSIS DSP Library |
| 3 | + * Title: arm_common_tables.h |
| 4 | + * Description: Extern declaration for common tables |
| 5 | + * |
| 6 | + * $Date: 27. January 2017 |
| 7 | + * $Revision: V.1.5.1 |
| 8 | + * |
| 9 | + * Target Processor: Cortex-M cores |
| 10 | + * -------------------------------------------------------------------- */ |
| 11 | +/* |
| 12 | + * Copyright (C) 2010-2017 ARM Limited or its affiliates. All rights reserved. |
| 13 | + * |
| 14 | + * SPDX-License-Identifier: Apache-2.0 |
| 15 | + * |
| 16 | + * Licensed under the Apache License, Version 2.0 (the License); you may |
| 17 | + * not use this file except in compliance with the License. |
| 18 | + * You may obtain a copy of the License at |
| 19 | + * |
| 20 | + * www.apache.org/licenses/LICENSE-2.0 |
| 21 | + * |
| 22 | + * Unless required by applicable law or agreed to in writing, software |
| 23 | + * distributed under the License is distributed on an AS IS BASIS, WITHOUT |
| 24 | + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 25 | + * See the License for the specific language governing permissions and |
| 26 | + * limitations under the License. |
| 27 | + */ |
| 28 | + |
| 29 | +#ifndef _ARM_COMMON_TABLES_H |
| 30 | +#define _ARM_COMMON_TABLES_H |
| 31 | + |
| 32 | +#include "arm_math.h" |
| 33 | + |
| 34 | +extern const uint16_t armBitRevTable[1024]; |
| 35 | +extern const q15_t armRecipTableQ15[64]; |
| 36 | +extern const q31_t armRecipTableQ31[64]; |
| 37 | +extern const float32_t twiddleCoef_16[32]; |
| 38 | +extern const float32_t twiddleCoef_32[64]; |
| 39 | +extern const float32_t twiddleCoef_64[128]; |
| 40 | +extern const float32_t twiddleCoef_128[256]; |
| 41 | +extern const float32_t twiddleCoef_256[512]; |
| 42 | +extern const float32_t twiddleCoef_512[1024]; |
| 43 | +extern const float32_t twiddleCoef_1024[2048]; |
| 44 | +extern const float32_t twiddleCoef_2048[4096]; |
| 45 | +extern const float32_t twiddleCoef_4096[8192]; |
| 46 | +#define twiddleCoef twiddleCoef_4096 |
| 47 | +extern const q31_t twiddleCoef_16_q31[24]; |
| 48 | +extern const q31_t twiddleCoef_32_q31[48]; |
| 49 | +extern const q31_t twiddleCoef_64_q31[96]; |
| 50 | +extern const q31_t twiddleCoef_128_q31[192]; |
| 51 | +extern const q31_t twiddleCoef_256_q31[384]; |
| 52 | +extern const q31_t twiddleCoef_512_q31[768]; |
| 53 | +extern const q31_t twiddleCoef_1024_q31[1536]; |
| 54 | +extern const q31_t twiddleCoef_2048_q31[3072]; |
| 55 | +extern const q31_t twiddleCoef_4096_q31[6144]; |
| 56 | +extern const q15_t twiddleCoef_16_q15[24]; |
| 57 | +extern const q15_t twiddleCoef_32_q15[48]; |
| 58 | +extern const q15_t twiddleCoef_64_q15[96]; |
| 59 | +extern const q15_t twiddleCoef_128_q15[192]; |
| 60 | +extern const q15_t twiddleCoef_256_q15[384]; |
| 61 | +extern const q15_t twiddleCoef_512_q15[768]; |
| 62 | +extern const q15_t twiddleCoef_1024_q15[1536]; |
| 63 | +extern const q15_t twiddleCoef_2048_q15[3072]; |
| 64 | +extern const q15_t twiddleCoef_4096_q15[6144]; |
| 65 | +extern const float32_t twiddleCoef_rfft_32[32]; |
| 66 | +extern const float32_t twiddleCoef_rfft_64[64]; |
| 67 | +extern const float32_t twiddleCoef_rfft_128[128]; |
| 68 | +extern const float32_t twiddleCoef_rfft_256[256]; |
| 69 | +extern const float32_t twiddleCoef_rfft_512[512]; |
| 70 | +extern const float32_t twiddleCoef_rfft_1024[1024]; |
| 71 | +extern const float32_t twiddleCoef_rfft_2048[2048]; |
| 72 | +extern const float32_t twiddleCoef_rfft_4096[4096]; |
| 73 | + |
| 74 | +/* floating-point bit reversal tables */ |
| 75 | +#define ARMBITREVINDEXTABLE_16_TABLE_LENGTH ((uint16_t)20) |
| 76 | +#define ARMBITREVINDEXTABLE_32_TABLE_LENGTH ((uint16_t)48) |
| 77 | +#define ARMBITREVINDEXTABLE_64_TABLE_LENGTH ((uint16_t)56) |
| 78 | +#define ARMBITREVINDEXTABLE_128_TABLE_LENGTH ((uint16_t)208) |
| 79 | +#define ARMBITREVINDEXTABLE_256_TABLE_LENGTH ((uint16_t)440) |
| 80 | +#define ARMBITREVINDEXTABLE_512_TABLE_LENGTH ((uint16_t)448) |
| 81 | +#define ARMBITREVINDEXTABLE_1024_TABLE_LENGTH ((uint16_t)1800) |
| 82 | +#define ARMBITREVINDEXTABLE_2048_TABLE_LENGTH ((uint16_t)3808) |
| 83 | +#define ARMBITREVINDEXTABLE_4096_TABLE_LENGTH ((uint16_t)4032) |
| 84 | + |
| 85 | +extern const uint16_t armBitRevIndexTable16[ARMBITREVINDEXTABLE_16_TABLE_LENGTH]; |
| 86 | +extern const uint16_t armBitRevIndexTable32[ARMBITREVINDEXTABLE_32_TABLE_LENGTH]; |
| 87 | +extern const uint16_t armBitRevIndexTable64[ARMBITREVINDEXTABLE_64_TABLE_LENGTH]; |
| 88 | +extern const uint16_t armBitRevIndexTable128[ARMBITREVINDEXTABLE_128_TABLE_LENGTH]; |
| 89 | +extern const uint16_t armBitRevIndexTable256[ARMBITREVINDEXTABLE_256_TABLE_LENGTH]; |
| 90 | +extern const uint16_t armBitRevIndexTable512[ARMBITREVINDEXTABLE_512_TABLE_LENGTH]; |
| 91 | +extern const uint16_t armBitRevIndexTable1024[ARMBITREVINDEXTABLE_1024_TABLE_LENGTH]; |
| 92 | +extern const uint16_t armBitRevIndexTable2048[ARMBITREVINDEXTABLE_2048_TABLE_LENGTH]; |
| 93 | +extern const uint16_t armBitRevIndexTable4096[ARMBITREVINDEXTABLE_4096_TABLE_LENGTH]; |
| 94 | + |
| 95 | +/* fixed-point bit reversal tables */ |
| 96 | +#define ARMBITREVINDEXTABLE_FIXED_16_TABLE_LENGTH ((uint16_t)12) |
| 97 | +#define ARMBITREVINDEXTABLE_FIXED_32_TABLE_LENGTH ((uint16_t)24) |
| 98 | +#define ARMBITREVINDEXTABLE_FIXED_64_TABLE_LENGTH ((uint16_t)56) |
| 99 | +#define ARMBITREVINDEXTABLE_FIXED_128_TABLE_LENGTH ((uint16_t)112) |
| 100 | +#define ARMBITREVINDEXTABLE_FIXED_256_TABLE_LENGTH ((uint16_t)240) |
| 101 | +#define ARMBITREVINDEXTABLE_FIXED_512_TABLE_LENGTH ((uint16_t)480) |
| 102 | +#define ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH ((uint16_t)992) |
| 103 | +#define ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH ((uint16_t)1984) |
| 104 | +#define ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH ((uint16_t)4032) |
| 105 | + |
| 106 | +extern const uint16_t armBitRevIndexTable_fixed_16[ARMBITREVINDEXTABLE_FIXED_16_TABLE_LENGTH]; |
| 107 | +extern const uint16_t armBitRevIndexTable_fixed_32[ARMBITREVINDEXTABLE_FIXED_32_TABLE_LENGTH]; |
| 108 | +extern const uint16_t armBitRevIndexTable_fixed_64[ARMBITREVINDEXTABLE_FIXED_64_TABLE_LENGTH]; |
| 109 | +extern const uint16_t armBitRevIndexTable_fixed_128[ARMBITREVINDEXTABLE_FIXED_128_TABLE_LENGTH]; |
| 110 | +extern const uint16_t armBitRevIndexTable_fixed_256[ARMBITREVINDEXTABLE_FIXED_256_TABLE_LENGTH]; |
| 111 | +extern const uint16_t armBitRevIndexTable_fixed_512[ARMBITREVINDEXTABLE_FIXED_512_TABLE_LENGTH]; |
| 112 | +extern const uint16_t armBitRevIndexTable_fixed_1024[ARMBITREVINDEXTABLE_FIXED_1024_TABLE_LENGTH]; |
| 113 | +extern const uint16_t armBitRevIndexTable_fixed_2048[ARMBITREVINDEXTABLE_FIXED_2048_TABLE_LENGTH]; |
| 114 | +extern const uint16_t armBitRevIndexTable_fixed_4096[ARMBITREVINDEXTABLE_FIXED_4096_TABLE_LENGTH]; |
| 115 | + |
| 116 | +/* Tables for Fast Math Sine and Cosine */ |
| 117 | +extern const float32_t sinTable_f32[FAST_MATH_TABLE_SIZE + 1]; |
| 118 | +extern const q31_t sinTable_q31[FAST_MATH_TABLE_SIZE + 1]; |
| 119 | +extern const q15_t sinTable_q15[FAST_MATH_TABLE_SIZE + 1]; |
| 120 | + |
| 121 | +#endif /* ARM_COMMON_TABLES_H */ |
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