83 lines
2.8 KiB
C
83 lines
2.8 KiB
C
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/*
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* Copyright (C) 2017 XRADIO TECHNOLOGY CO., LTD. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name of XRADIO TECHNOLOGY CO., LTD. nor the names of
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* its contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _FFT_H_
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#define _FFT_H_
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#define debug_print_en 0
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#define fref 24 // ref xtal freqency is 24MHz
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typedef enum {
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Max287x_Power_Level0 = 0, /*!< 00 = -4dBm */
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Max287x_Power_Level1 = 1, /*!< 00 = -1dBm */
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Max287x_Power_Level2 = 2, /*!< 00 = +2dBm */
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Max287x_Power_Level3 = 3 /*!< 00 = +5dBm */
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} PowerLevel;
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#define round(x) (__u32)((x)+0.5)
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typedef unsigned long long u64;
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typedef unsigned int u32;
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typedef unsigned short u16;
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typedef unsigned char u8;
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typedef signed long long s64;
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typedef signed int s32;
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typedef signed short s16;
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typedef signed char s8;
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typedef u8 __u8;
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typedef u16 __u16;
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typedef u32 __u32;
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typedef u64 __u64;
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typedef s8 __s8;
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typedef s16 __s16;
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typedef s32 __s32;
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typedef s64 __s64;
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typedef struct _COMPLEX {
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__s32 Re;
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__s32 Im;
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} COMPLEX;
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typedef struct _FFT_RESULT {
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double sig_power;
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double noise_power;
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double Harm2nd_power;
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double Harm3th_power;
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float sig_freq;
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} FFT_RESULT;
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COMPLEX complex_add(COMPLEX x1, COMPLEX x2);
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COMPLEX complex_sub(COMPLEX x1, COMPLEX x2);
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COMPLEX complex_mul(COMPLEX x1, COMPLEX x2);
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#endif
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