pinebuds/platform/hal/hal_hwfft.h

/***************************************************************************
 *
 * Copyright 2015-2019 BES.
 * All rights reserved. All unpublished rights reserved.
 *
 * No part of this work may be used or reproduced in any form or by any
 * means, or stored in a database or retrieval system, without prior written
 * permission of BES.
 *
 * Use of this work is governed by a license granted by BES.
 * This work contains confidential and proprietary information of
 * BES. which is protected by copyright, trade secret,
 * trademark and other intellectual property rights.
 *
 ****************************************************************************/
#ifndef __HAL_HWFFT__
#define __HAL_HWFFT__

#ifdef __cplusplus
extern "C" {
#endif

//#include "cmsis_os.h"

#define HWFFT_USE_BUSY_WAIT 1
#define HAVE_EQUIVALENT_MODE 1 /* 128in 128out not 128in 130out mode  */

struct hwfft_t {
    int mode;
    int order;
    int sym_fft;
    //osSemaphoreId _osSemaphoreId;
   // osSemaphoreDef_t _osSemaphoreDef;
//#ifdef CMSIS_OS_RTX
//    uint32_t _semaphore_data[2];
//#endif
};

enum hwfft_mode_t {
    HWFFT_MODE_FFT = 0x1,
    HWFFT_MODE_IFFT = 0x2,
    HWFFT_MODE_EQVL_FFT = 0x4,
    HWFFT_MODE_EQVL_IFFT = 0x8,
};

enum hwfft_order_t {
    HWFFT_ORDER_64SAMP  = 64,
    HWFFT_ORDER_128SAMP = 128,
    HWFFT_ORDER_256SAMP = 256,
    HWFFT_ORDER_512SAMP = 512,
};

bool hwfft_is_enable(void);
int hwfft_destroy(struct hwfft_t *fft_inst);
/*
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>hwfft_t <EFBFBD>ṹ<EFBFBD><EFBFBD>
mode: hwfft_mode_t<EFBFBD><EFBFBD><EFBFBD><EFBFBD>HWFFT_MODE_FFT:  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱsym_fft<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<EFBFBD><EFBFBD>
                                                                  ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n/2+1 <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱsym_fft<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ1<EFBFBD><EFBFBD>
                                      HWFFT_MODE_IFFT:  <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱsym_fft<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ0<EFBFBD><EFBFBD>
                                                                   ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> n/2+1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʱsym_fft<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ1<EFBFBD><EFBFBD>
                                      HWFFT_MODE_EQVL_FFT: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>spx_fft<EFBFBD><EFBFBD><EFBFBD><EFBFBD>fftģʽ
                                      HWFFT_MODE_EQVL_IFFT: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>spx_ifft<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ifftģʽ
                                                                 
order: hwfft_order_t<EFBFBD><EFBFBD><EFBFBD>ͣ<EFBFBD>֧<EFBFBD><EFBFBD> 512/256/128/64 <EFBFBD><EFBFBD><EFBFBD><EFBFBD> fft/ifft

sym_fft:  1: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>fft<EFBFBD>ĶԳ<EFBFBD><EFBFBD><EFBFBD>;<EFBFBD><EFBFBD>fft<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n/2+1 <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
                <EFBFBD><EFBFBD>ifft<EFBFBD><EFBFBD> <EFBFBD><EFBFBD><EFBFBD><EFBFBD> n/2+1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD>ʵ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>n Ϊfft/ifft<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
              0: <EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>n<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
int hwfft_create(struct hwfft_t *fft_inst, int mode, int order, int sym_fft);
/*
<EFBFBD><EFBFBD><EFBFBD><EFBFBD>fft/ifft
fft_inst: hwfft_create<EFBFBD><EFBFBD><EFBFBD>ɵĶ<EFBFBD>Ӧ<EFBFBD>ṹ<EFBFBD><EFBFBD>
in: <EFBFBD><EFBFBD><EFBFBD><EFBFBD>buf
out: <EFBFBD><EFBFBD><EFBFBD><EFBFBD>buf
*/
int hwfft_fft_process(struct hwfft_t *fft_inst, short *in, short *out);
/*
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> fft/ifft
fft_inst: hwfft_create<EFBFBD><EFBFBD><EFBFBD>ɵĶ<EFBFBD>Ӧ<EFBFBD>ṹ<EFBFBD><EFBFBD>
in: <EFBFBD><EFBFBD><EFBFBD><EFBFBD>buf<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>fft<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>buf<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
out: <EFBFBD><EFBFBD><EFBFBD><EFBFBD>buf
num: <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mode: 0 һֱ<EFBFBD>ȵ<EFBFBD>fft<EFBFBD><EFBFBD><EFBFBD>ɺ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ŷ<EFBFBD><EFBFBD><EFBFBD>
         1 dma<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɣ<EFBFBD>fft<EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɷ<EFBFBD><EFBFBD>أ<EFBFBD>cpu<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ӳ<EFBFBD><EFBFBD>fft ʱ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
*/
int hwfft_multifft_process(struct hwfft_t *fft_inst, short *in, short *out, unsigned short num,unsigned char mode);

#ifdef __cplusplus
}
#endif

#endif