s_code.c

wcdma模型

/*
 | Project:     WCDMA simulation environment
 | Module:      
 | Author:      
 | Date:        February, 1999
 |
 | History:
 |              May 20,  1999 Maarit Melvasalo 
 |
 |  File    :   s_code.c
 |  Abstract:
 |              This function      
 |
 | USER GIVEN PARAMETERS
 |
 | 0: SF   = Spreading code length  
 |
 |
 | Copyright disclaimer:
 |   This software was developed at the National Institute of Standards
 |   and Technology by employees of the Federal Government in the course
 |   of their official duties. Pursuant to title 17 Section 105 of the
 |   United States Code this software is not subject to copyright
 |   protection and is in the public domain.
 |
 |   We would appreciate acknowledgement if the software is used.
 *
 */



#define S_FUNCTION_NAME s_code
#define S_FUNCTION_LEVEL 2

#include <math.h>
#include "simstruc.h"
#include "tmwtypes.h"
#include "config_wcdma.h"


/* USER GIVEN PARAMETERS AND DEFINITIONS /**/

/*Number of input and output ports/**/
#define NINPUTS   0
#define NOUTPUTS  1

/* Number of user given parameters/**/  

#define NPARAMS 1


/* Spreading code parameter /**/

#define C_PARAM(S) ssGetSFcnParam(S,0)           
#define nCode (int_T)(mxGetPr(C_PARAM(S))[0])    

#define td 1



static void mdlInitializeSizes(SimStruct *S)
{
  ssSetNumSFcnParams(S, NPARAMS);  

  if (ssGetNumSFcnParams(S) != ssGetSFcnParamsCount(S)) 
 {
      return;
 }
    if (!ssSetNumInputPorts(S, NINPUTS)) return;

    if (!ssSetNumOutputPorts(S, NOUTPUTS)) return;
    ssSetOutputPortWidth(S, 0, nCode); 

    ssSetNumSampleTimes(S, 1);
    ssSetNumIWork(S, nCode + 1);

    ssSetSFcnParamNotTunable(S,0);  /* speeds up simulations*/  

    /* Take care when specifying exception free code - see sfuntmpl.doc */
    ssSetOptions(S, SS_OPTION_EXCEPTION_FREE_CODE);
    /* do not use mxCalloc or  mexErrMsgTxt functions */
}


/* Function: mdlInitializeSampleTimes =========================================
 * Abstract:
 *    Specifiy that sampletime is given by the user
 */
static void mdlInitializeSampleTimes(SimStruct *S)
{
  ssSetSampleTime(S, 0, td); 
    ssSetOffsetTime(S, 0, 0.0);
}


#define MDL_INITIALIZE_CONDITIONS
/* Function: mdlInitializeConditions ========================================
 * Abstract:
 */
static void mdlInitializeConditions(SimStruct *S)
{
    int_T             *iwork = ssGetIWork(S);
    int_T i;



    iwork[nCode ] = wcdma_code_init(nCode);

    i= wcdma_ovsf_code(iwork[nCode],iwork);/**/


}


/* Function: mdlOutputs =======================================================
 * Abstract:
 * The output is the inpulse response convoluted with the received bits 
 * for NDISKS previous time intervals.
 * 
 */
static void mdlOutputs(SimStruct *S, int_T tid)
{
  real_T            *y    = ssGetOutputPortRealSignal(S,0);
  int_T             *iwork = ssGetIWork(S);   
  int_T i;
    
  {
    for (i = 0; i< nCode; i++) { 
      y[i] = iwork[i] ;
    }
 
  }
}

/* Function: mdlTerminate =====================================================
 * Abstract:
 * 
 */
static void mdlTerminate(SimStruct *S)
{  
  int_T             *iwork = ssGetIWork(S);   
  int_T tmp;

  tmp = wcdma_code_free(iwork[nCode]);/**/
}

#ifdef  MATLAB_MEX_FILE    /* Is this file being compiled as a MEX-file? */
#include "simulink.c"      /* MEX-file interface mechanism */
#else
#include "cg_sfun.h"       /* Code generation registration function */
#endif