rpp/blocks/sfunction_frayreceive.c

   1 /* Copyright (C) 2013 Czech Technical University in Prague
   2  *
   3  * Authors:
   4  *     - Michal Horn <hornimch@fel.cvut.cz>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  *
  19  * File : sfunction_frayreceive.c
  20  * Abstract:
  21  *     C-MEX S-function block for RPP FlexRay RX buffer configuration and message receiving.
  22  *
  23  * References:
  24  *     header.c
  25  *     trailer.c
  26  *
  27  * Compile with:
  28  *     <matlabroot>/bin/mex sfunction_frayreceive.c
  29  */
  30
  31
  32 #define S_FUNCTION_NAME sfunction_frayreceive
  33 #include "header.c"
  34 #include <stdio.h>
  35
  36 enum params {
  37         channel_IDX                                             = 0,
  38         cycleCounterFiltering_IDX               = 1,
  39         maxPayload_IDX                                  = 2,
  40         msgBufferInterrupt_IDX                  = 3,
  41         payloadPreambleIndicatorTr_IDX  = 4,
  42         singleTransmit_IDX                              = 5,
  43         slotId_IDX                                              = 6,
  44         PARAM_COUNT
  45 };
  46
  47 enum outputs {
  48         OUTPUT_ERROR_FLAG,
  49         OUTPUT_MESSAGE,
  50         OUTPUT_LENGTH,
  51         OUTPUT_TRIGGER,
  52         OUTPUT_COUNT,
  53 };
  54
  55
  56 static void mdlInitializeSizes(SimStruct *S)
  57 {
  58     if(!rppSetNumParams(S, PARAM_COUNT)) {
  59         return;
  60     }
  61
  62     /*
  63      * Configure input ports: 0
  64      */
  65     if(!ssSetNumInputPorts(S, 0)) {
  66         return;
  67     }
  68
  69
  70     /*
  71      * Configure output ports: 4
  72      *  - Error flag.
  73          *  - Message
  74          *  - Length (number of received bytes)
  75          *  - Trigger
  76      */
  77     if(!ssSetNumOutputPorts(S, OUTPUT_COUNT)) {
  78         return;
  79     }
  80         rppAddOutputPort(S, OUTPUT_ERROR_FLAG, SS_BOOLEAN);
  81         rppAddOutputVectorPort(S, OUTPUT_MESSAGE, SS_UINT8, 2*(int_T)mxGetPr(ssGetSFcnParam(S, 2))[0]);
  82         rppAddOutputPort(S, OUTPUT_LENGTH, SS_UINT8);
  83         rppAddOutputPort(S, OUTPUT_TRIGGER, SS_BOOLEAN);
  84
  85     /* Set standard options for this block */
  86     rppSetStandardOptions(S);
  87 }
  88
  89
  90 #ifdef MATLAB_MEX_FILE
  91 #define MDL_CHECK_PARAMETERS
  92 static void mdlCheckParameters(SimStruct *S)
  93 {
  94
  95 }
  96 #endif
  97
  98
  99 #ifdef MATLAB_MEX_FILE
 100 #define MDL_SET_WORK_WIDTHS
 101 static void mdlSetWorkWidths(SimStruct *S)
 102 {
 103     /* Set number of run-time parameters */
 104     if(!ssSetNumRunTimeParams(S, PARAM_COUNT)) {
 105         return;
 106     }
 107
 108     /* Register the run-time parameter 1 */
 109     ssRegDlgParamAsRunTimeParam(S, channel_IDX, channel_IDX, "channel", SS_UINT8);
 110     ssRegDlgParamAsRunTimeParam(S, cycleCounterFiltering_IDX, cycleCounterFiltering_IDX, "cycleCounterFiltering", SS_UINT8);
 111     ssRegDlgParamAsRunTimeParam(S, maxPayload_IDX, maxPayload_IDX, "maxPayload", SS_UINT8);
 112     ssRegDlgParamAsRunTimeParam(S, msgBufferInterrupt_IDX, msgBufferInterrupt_IDX, "msgBufferInterrupt", SS_BOOLEAN);
 113     ssRegDlgParamAsRunTimeParam(S, payloadPreambleIndicatorTr_IDX, payloadPreambleIndicatorTr_IDX, "payloadPreambleIndicatorTr", SS_BOOLEAN);
 114     ssRegDlgParamAsRunTimeParam(S, singleTransmit_IDX, singleTransmit_IDX, "singleTransmit", SS_BOOLEAN);
 115     ssRegDlgParamAsRunTimeParam(S, slotId_IDX, slotId_IDX, "slotId", SS_UINT32);
 116 }
 117 #endif
 118
 119
 120 #define COMMON_MDLINITIALIZESAMPLETIMES_INHERIT
 121 #define UNUSED_MDLOUTPUTS
 122 #define UNUSED_MDLTERMINATE
 123 #include "trailer.c"