/*
 * File: AWGN.c
 *
 *
  *
  *   --- THIS FILE GENERATED BY S-FUNCTION BUILDER: 3.0 ---
  *
  *   This file is an S-function produced by the S-Function
  *   Builder which only recognizes certain fields.  Changes made
  *   outside these fields will be lost the next time the block is
  *   used to load, edit, and resave this file. This file will be overwritten
  *   by the S-function Builder block. If you want to edit this file by hand, 
  *   you must change it only in the area defined as:  
  *
  *        %%%-SFUNWIZ_defines_Changes_BEGIN
  *        #define NAME 'replacement text' 
  *        %%% SFUNWIZ_defines_Changes_END
  *
  *   DO NOT change NAME--Change the 'replacement text' only.
  *
  *   For better compatibility with the Real-Time Workshop, the
  *   "wrapper" S-function technique is used.  This is discussed
  *   in the Real-Time Workshop User's Manual in the Chapter titled,
  *   "Wrapper S-functions".
  *
  *  -------------------------------------------------------------------------
  * | See matlabroot/simulink/src/sfuntmpl_doc.c for a more detailed template |
  *  ------------------------------------------------------------------------- 
 * Created: Mon Mar  6 23:13:56 2006
 * 
 *
 */


#define S_FUNCTION_NAME AWGN
#define S_FUNCTION_LEVEL 2
/*<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/
/* %%%-SFUNWIZ_defines_Changes_BEGIN --- EDIT HERE TO _END */
#define NUM_INPUTS          1
/* Input Port  0 */
#define IN_PORT_0_NAME      u0
#define INPUT_0_WIDTH       1
#define INPUT_DIMS_0_COL    1
#define INPUT_0_DTYPE       real_T
#define INPUT_0_COMPLEX     COMPLEX_NO
#define IN_0_FRAME_BASED    FRAME_NO
#define IN_0_DIMS           1-D
#define INPUT_0_FEEDTHROUGH 1
#define IN_0_ISSIGNED        0
#define IN_0_WORDLENGTH      8
#define IN_0_FIXPOINTSCALING 1
#define IN_0_FRACTIONLENGTH  9
#define IN_0_BIAS            0
#define IN_0_SLOPE           0.125

#define NUM_OUTPUTS          1
/* Output Port  0 */
#define OUT_PORT_0_NAME      y0
#define OUTPUT_0_WIDTH       1
#define OUTPUT_DIMS_0_COL    1
#define OUTPUT_0_DTYPE       real_T
#define OUTPUT_0_COMPLEX     COMPLEX_NO
#define OUT_0_FRAME_BASED    FRAME_NO
#define OUT_0_DIMS           1-D
#define OUT_0_ISSIGNED        1
#define OUT_0_WORDLENGTH      8
#define OUT_0_FIXPOINTSCALING 1
#define OUT_0_FRACTIONLENGTH  3
#define OUT_0_BIAS            0
#define OUT_0_SLOPE           0.125

#define NPARAMS              3
/* Parameter  1 */
#define PARAMETER_0_NAME      EbNo
#define PARAMETER_0_DTYPE     real_T
#define PARAMETER_0_COMPLEX   COMPLEX_NO
/* Parameter  2 */
#define PARAMETER_1_NAME      rate
#define PARAMETER_1_DTYPE     real_T
#define PARAMETER_1_COMPLEX   COMPLEX_NO
/* Parameter  3 */
#define PARAMETER_2_NAME      a
#define PARAMETER_2_DTYPE     real_T
#define PARAMETER_2_COMPLEX   COMPLEX_NO

#define SAMPLE_TIME_0        INHERITED_SAMPLE_TIME
#define NUM_DISC_STATES      0
#define DISC_STATES_IC       [0]
#define NUM_CONT_STATES      0
#define CONT_STATES_IC       [0]

#define SFUNWIZ_GENERATE_TLC 1
#define SOURCEFILES "__SFB__"
#define PANELINDEX           6
#define USE_SIMSTRUCT        0
#define SHOW_COMPILE_STEPS   0                   
#define CREATE_DEBUG_MEXFILE 0
#define SAVE_CODE_ONLY       0
#define SFUNWIZ_REVISION     3.0
/* %%%-SFUNWIZ_defines_Changes_END --- EDIT HERE TO _BEGIN */
/*<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<*/
#include "simstruc.h"
#define PARAM_DEF0(S) ssGetSFcnParam(S, 0)
#define PARAM_DEF1(S) ssGetSFcnParam(S, 1)
#define PARAM_DEF2(S) ssGetSFcnParam(S, 2)

#define IS_PARAM_DOUBLE(pVal) (mxIsNumeric(pVal) && !mxIsLogical(pVal) &&\
!mxIsEmpty(pVal) && !mxIsSparse(pVal) && !mxIsComplex(pVal) && mxIsDouble(pVal))

extern void AWGN_Outputs_wrapper(const real_T *u0,
                          real_T *y0  , 
                          const real_T  *EbNo, const int_T  p_width0, 
                          const real_T  *rate, const int_T  p_width1, 
                          const real_T  *a,  const int_T p_width2);

/*====================*
 * S-function methods *
 *====================*/
#define MDL_CHECK_PARAMETERS
 #if defined(MDL_CHECK_PARAMETERS) && defined(MATLAB_MEX_FILE)
   /* Function: mdlCheckParameters =============================================
     * Abstract:
     *    Validate our parameters to verify they are okay.
     */
    static void mdlCheckParameters(SimStruct *S)
    {
     #define PrmNumPos 46
     int paramIndex = 0;
     bool validParam = false;
     char paramVector[] ={'1','2','3'};
     static char parameterErrorMsg[] ="The data type and/or complexity of parameter    does not match the information "
     "specified in the S-function Builder dialog. For non-double parameters you will need to cast them using int8, int16,"
     "int32, uint8, uint16, uint32 or boolean."; 

     /* All parameters must match the S-function Builder Dialog */
     

	 {
	  const mxArray *pVal0 = ssGetSFcnParam(S,0);
	  if (!IS_PARAM_DOUBLE(pVal0)) {
	    validParam = true;
	    paramIndex = 0;
	    goto EXIT_POINT;
	  }
	 }

	 {
	  const mxArray *pVal1 = ssGetSFcnParam(S,1);
	  if (!IS_PARAM_DOUBLE(pVal1)) {
	    validParam = true;
	    paramIndex = 1;
	    goto EXIT_POINT;
	  }
	 }

	 {
	  const mxArray *pVal2 = ssGetSFcnParam(S,2);
	  if (!IS_PARAM_DOUBLE(pVal2)) {
	    validParam = true;
	    paramIndex = 2;
	    goto EXIT_POINT;
	  }
	 }
     EXIT_POINT:
      if (validParam) {
	  parameterErrorMsg[PrmNumPos] = paramVector[paramIndex];
	  ssSetErrorStatus(S,parameterErrorMsg);
      }
	return;
    }
 #endif /* MDL_CHECK_PARAMETERS */
/* Function: mdlInitializeSizes ===============================================
 * Abstract:
 *   Setup sizes of the various vectors.
 */
static void mdlInitializeSizes(SimStruct *S)
{

    DECL_AND_INIT_DIMSINFO(inputDimsInfo);
    DECL_AND_INIT_DIMSINFO(outputDimsInfo);
    ssSetNumSFcnParams(S, NPARAMS);  /* Number of expected parameters */
      #if defined(MATLAB_MEX_FILE)
	if (ssGetNumSFcnParams(S) == ssGetSFcnParamsCount(S)) {
	  mdlCheckParameters(S);
	  if (ssGetErrorStatus(S) != NULL) {
	    return;
	  }
	 } else {
	   return; /* Parameter mismatch will be reported by Simulink */
	 }
      #endif

    ssSetNumContStates(S, NUM_CONT_STATES);
    ssSetNumDiscStates(S, NUM_DISC_STATES);

    if (!ssSetNumInputPorts(S, NUM_INPUTS)) return;
    ssSetInputPortWidth(S, 0, INPUT_0_WIDTH);
    ssSetInputPortDataType(S, 0, SS_DOUBLE);
    ssSetInputPortComplexSignal(S, 0, INPUT_0_COMPLEX);
    ssSetInputPortDirectFeedThrough(S, 0, INPUT_0_FEEDTHROUGH);
    ssSetInputPortRequiredContiguous(S, 0, 1); /*direct input signal access*/

    if (!ssSetNumOutputPorts(S, NUM_OUTPUTS)) return;
    ssSetOutputPortWidth(S, 0, OUTPUT_0_WIDTH);
    ssSetOutputPortDataType(S, 0, SS_DOUBLE);
    ssSetOutputPortComplexSignal(S, 0, OUTPUT_0_COMPLEX);
    ssSetNumSampleTimes(S, 1);
    ssSetNumRWork(S, 0);
    ssSetNumIWork(S, 0);
    ssSetNumPWork(S, 0);
    ssSetNumModes(S, 0);
    ssSetNumNonsampledZCs(S, 0);

    /* Take care when specifying exception free code - see sfuntmpl_doc.c */
    ssSetOptions(S, (SS_OPTION_EXCEPTION_FREE_CODE |
                     SS_OPTION_USE_TLC_WITH_ACCELERATOR |
		     SS_OPTION_WORKS_WITH_CODE_REUSE));
}

# define MDL_SET_INPUT_PORT_FRAME_DATA
static void mdlSetInputPortFrameData(SimStruct  *S, 
                                     int_T      port,
                                     Frame_T    frameData)
{
    ssSetInputPortFrameData(S, port, frameData);
}
/* Function: mdlInitializeSampleTimes =========================================
 * Abstract:
 *    Specifiy  the sample time.
 */
static void mdlInitializeSampleTimes(SimStruct *S)
{
    ssSetSampleTime(S, 0, SAMPLE_TIME_0);
    ssSetOffsetTime(S, 0, 0.0);
}

#define MDL_SET_INPUT_PORT_DATA_TYPE
static void mdlSetInputPortDataType(SimStruct *S, int port, DTypeId dType)
{
    ssSetInputPortDataType( S, 0, dType);
}
#define MDL_SET_OUTPUT_PORT_DATA_TYPE
static void mdlSetOutputPortDataType(SimStruct *S, int port, DTypeId dType)
{
    ssSetOutputPortDataType(S, 0, dType);
}

#define MDL_SET_DEFAULT_PORT_DATA_TYPES
static void mdlSetDefaultPortDataTypes(SimStruct *S)
{
  ssSetInputPortDataType( S, 0, SS_DOUBLE);
 ssSetOutputPortDataType(S, 0, SS_DOUBLE);
}
/* Function: mdlOutputs =======================================================
 *
*/
static void mdlOutputs(SimStruct *S, int_T tid)
{
    const real_T   *u0  = (const real_T*) ssGetInputPortSignal(S,0);
    real_T        *y0  = (real_T *)ssGetOutputPortRealSignal(S,0);
    const int_T   p_width0  = mxGetNumberOfElements(PARAM_DEF0(S));
    const int_T   p_width1  = mxGetNumberOfElements(PARAM_DEF1(S));
    const int_T   p_width2  = mxGetNumberOfElements(PARAM_DEF2(S));
    const real_T  *EbNo  = mxGetData(PARAM_DEF0(S));
    const real_T  *rate  = mxGetData(PARAM_DEF1(S));
    const real_T  *a  = mxGetData(PARAM_DEF2(S));

    AWGN_Outputs_wrapper(u0, y0, EbNo, p_width0, rate, p_width1, a, p_width2);
}



/* Function: mdlTerminate =====================================================
 * Abstract:
 *    In this function, you should perform any actions that are necessary
 *    at the termination of a simulation.  For example, if memory was
 *    allocated in mdlStart, this is the place to free it.
 */
static void mdlTerminate(SimStruct *S)
{
}

#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