/*
 * Copyright (C) 2017 XRADIO TECHNOLOGY CO., LTD. All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *    1. Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *    2. Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the
 *       distribution.
 *    3. Neither the name of XRADIO TECHNOLOGY CO., LTD. nor the names of
 *       its contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 *  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 *  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 *  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 *  OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 *  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 *  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 *  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef _FFT_H_
#define _FFT_H_

#define debug_print_en    0
#define fref            24    // ref xtal freqency is 24MHz


typedef enum {
	Max287x_Power_Level0 =    0,            /*!< 00 = -4dBm */
	Max287x_Power_Level1 =    1,            /*!< 00 = -1dBm */
	Max287x_Power_Level2 =    2,            /*!< 00 = +2dBm */
	Max287x_Power_Level3 =    3             /*!< 00 = +5dBm */
} PowerLevel;

#define round(x)    (__u32)((x)+0.5)

typedef unsigned long long  u64;
typedef unsigned int        u32;
typedef unsigned short      u16;
typedef unsigned char       u8;
typedef signed long long    s64;
typedef signed int          s32;
typedef signed short        s16;
typedef signed char         s8;

typedef u8  __u8;
typedef u16 __u16;
typedef u32 __u32;
typedef u64 __u64;

typedef s8  __s8;
typedef s16 __s16;
typedef s32 __s32;
typedef s64 __s64;

typedef struct _COMPLEX {
	__s32 Re;
	__s32 Im;
} COMPLEX;

typedef struct _FFT_RESULT {
	double sig_power;
	double noise_power;
	double Harm2nd_power;
	double Harm3th_power;
	float sig_freq;
} FFT_RESULT;

COMPLEX complex_add(COMPLEX x1, COMPLEX x2);
COMPLEX complex_sub(COMPLEX x1, COMPLEX x2);
COMPLEX complex_mul(COMPLEX x1, COMPLEX x2);

#endif