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/***********************************************************************
**  File Name:    SecurityVoice.h
**  Part Number:  TLV320AIC10/11EVM-SW-00105
************************************************************************
**  Copyright (c) Texas Instruments, Inc. 2000
************************************************************************
**
**  Release History:
**     Version      Date          Engr          Description
**      1.00     10-11-2000    Wendy X Fang   Original Release
**
************************************************************************
**
**  Function:
**    This is the head file for SecurityVoice.c, which defines all of
**    the variables and parameters.
**
***********************************************************************/

/***********************************************************************
**  Define Statements
***********************************************************************/

/***********************************************************************
**  Global Varaibles that are Used for Security Voice System
***********************************************************************/
unsigned int  SCarrierInd  = 0; /* carrier SINE index  */
int           SCarrier     = 0; /* carrier SINE signal */
int           SOut         = 0; /* securied voice output */
int           MicPhIn      = 0; /* microphone input to slave AIC */

/* Filter Parameters: bo+b1z-1+b2z-2/(1+a1z-1+a2z-2) */
int           b0       =  3198; /* b0 = 0.0976 */
int           b1       =  6400; /* b1 = 0.1953 */
int           b2       =  3198; /* b2 = 0.0976 */
int           a1       =-30894; /* a1 =-0.9428 */
int           a2       = 10922; /* a2 = 0.3333 */
/*int           b0       =  7787;  b0 = 0.2376 */
/*int           b1       = 15574;  b1 = 0.4753 */
/*int           b2       =  7787;  b2 = 0.2376 */
/*int           a1       = -7550;  a1 =-0.2304 */
/*int           a2       =  5930;  a2 = 0.1810 */
   
int     SInMx    = 0;     /* mixed signal = SIn*SCarrier */
int     SInMxZ1  = 0;     /* mixed signal = SIn*Scarrier*z-1 */
int     SInMxZ2  = 0;     /* mixed signal = SIn*SCarrier*z-2 */
int     SOutZ1   = 0;     /* output during filtering*z-1 */
int     SOutZ2   = 0;     /* output during filtering*z-2 */

long  int    SOutTemp = 0;     /* output during filtering */
long  int    SOutTemp1, SOutTemp2, 
             SOutTemp3, SOutTemp4, SOutTemp5;  
  
/***********************************************************************
**  Global Varaibles Used for TX DTMF Tone
***********************************************************************/
extern   int  ToneWave;
extern   unsigned int  SL_ADC;  /* slave AIC10 ADC input(microphone)*/
extern   int  f697[];           /* 697Hz sine table(16KHz SampleRate)*/
extern   int  f770[];           /* 770Hz sine table(16KHz S.R.)  */
extern   int  f852[];           /* 852Hz sine table(16KHz S.R.)  */
extern   int  f941[];           /* 941Hz sine table(16KHz S.R.)  */
extern   int  f1209[];          /* 1209Hz sine table(16KHz S.R.) */

/***********************************************************************
**  End of File -- SecurityVoice.h
***********************************************************************/