mcu/driver/audio/src32_inc/ecall_fec.h

/*============================================================================*/
/* eCall ANSI C fixed-point reference source code                             */
/*                                                                            */
/* File:         ecall_fec.h                                                  */
/* Version:      8.6.0 (Rel8) / 9.4.0 (Rel9)                                  */
/* Date:         2011-02-08                                                   */
/* Description:  Turbo encoder and decoder (header file)                      */
/*----------------------------------------------------------------------------*/

#ifndef ECALL_FEC_H_
#define ECALL_FEC_H_

#include "ecall_defines.h"
#include "ecall_rom.h"


/*============================================================================*/
/* Encoder functions                                                          */
/*----------------------------------------------------------------------------*/

void FecEncode(Ord1*);

void AttachCrc(const Ord1*, Ord1*);
void Scramble(const Ord1*, Ord1*);
void EncodeTwo(Ord1*);
void EncodeOne(Ord1*, Int16);

/*============================================================================*/
/* Decoder functions                                                          */
/*----------------------------------------------------------------------------*/

Bool FecDecode(const IntLLR*, Int16, Ord1*);

void UpdateBuffer(IntLLR*, const IntLLR*, Int16);
void DecodeBuffer(const IntLLR*, const IntLLR*,
                  const IntLLR*, const IntLLR*, Ord1*);

Bool DecodeCrc(const Ord1*);
void Interleave(const IntLLR*, IntLLR*);
void Deinterleave(IntLLR*);
void Descramble(Ord1*);
void Bcjr(const IntLLR*, IntLLR*);

IntLLR GammaQ(Int16, Int16, const IntLLR*, const IntLLR*);
IntLLR JacLog(Int32, Int32);

void FecInit(void *addr);
void FecDeinit(void);

#endif