rpp/blocks/sfunction_frayreceive.c

   1 /* Copyright (C) 2013, 2014 Czech Technical University in Prague
   2  *
   3  * Authors:
   4  *     - Michal Horn <hornimch@fel.cvut.cz>
   5  *
   6  * This document contains proprietary information belonging to Czech
   7  * Technical University in Prague. Passing on and copying of this
   8  * document, and communication of its contents is not permitted
   9  * without prior written authorization.
  10  *
  11  * File : sfunction_frayreceive.c
  12  * Abstract:
  13  *     C-MEX S-function block for RPP FlexRay RX buffer configuration and message receiving.
  14  *
  15  * References:
  16  *     header.c
  17  *     trailer.c
  18  *
  19  * Compile with:
  20  *     <matlabroot>/bin/mex sfunction_frayreceive.c
  21  */
  22
  23 /*
  24 %YAML 1.2
  25 ---
  26 Name: Configure RX buffer
  27 Category: FlexRayin
  28 Header: rpp/fr.h
  29 Mnemonic: FRC
  30
  31 Inputs:
  32
  33 Outputs:
  34   - { name: "ErrFlag", type: "bool" }
  35   - { name: "Receive", type: "uint8 vector" }
  36   - { name: "Length", type: "uint8" }
  37   - { name: "Trigger", type: "bool" }
  38
  39 Parameters:
  40   - { name: "channel", type: "uint8" }
  41   - { name: "cycleCounterFiltering", type: "uint8" }
  42   - { name: "maxPayload", type: "uint8", range: "(in half-words)" }
  43   - { name: "msgBufferInterrupt", type: "bool" }
  44   - { name: "payloadPreambleIndicatorTr", type: "bool" }
  45   - { name: "singleTransmit", type: "bool" }
  46   - { name: "slotId", type: "uint32" }
  47   - { name: "bufferId", type: "uint32" }
  48
  49 # Description and Help is in Markdown mark-up
  50 Description: &desc |
  51
  52   This block ...
  53
  54 Help: *desc
  55
  56 Status: Beta
  57
  58 RPP API functions used:
  59
  60 Relevant demos:
  61 ...
  62 */
  63
  64 #define S_FUNCTION_NAME sfunction_frayreceive
  65 #include "header.c"
  66 #include <stdio.h>
  67
  68 enum params {
  69         channel_IDX                                             = 0,
  70         cycleCounterFiltering_IDX               = 1,
  71         maxPayload_IDX                                  = 2,
  72         msgBufferInterrupt_IDX                  = 3,
  73         payloadPreambleIndicatorTr_IDX  = 4,
  74         singleTransmit_IDX                              = 5,
  75         slotId_IDX                                              = 6,
  76         bufferId_IDX                                    = 7,
  77         PARAM_COUNT
  78 };
  79
  80 enum outputs {
  81         OUTPUT_ERROR_FLAG,
  82         OUTPUT_MESSAGE,
  83         OUTPUT_LENGTH,
  84         OUTPUT_TRIGGER,
  85         OUTPUT_COUNT,
  86 };
  87
  88
  89 static void mdlInitializeSizes(SimStruct *S)
  90 {
  91     if (!rppSetNumParams(S, PARAM_COUNT)) {
  92         return;
  93     }
  94
  95     /*
  96      * Configure input ports: 0
  97      */
  98     if (!ssSetNumInputPorts(S, 0)) {
  99         return;
 100     }
 101
 102
 103     /*
 104      * Configure output ports: 4
 105      *  - Error flag.
 106          *  - Message
 107          *  - Length (number of received bytes)
 108          *  - Trigger
 109      */
 110     if (!ssSetNumOutputPorts(S, OUTPUT_COUNT)) {
 111         return;
 112     }
 113         rppAddOutputPort(S, OUTPUT_ERROR_FLAG, SS_BOOLEAN);
 114         rppAddOutputVectorPort(S, OUTPUT_MESSAGE, SS_UINT8, 2*(int_T)mxGetPr(ssGetSFcnParam(S, 2))[0]);
 115         rppAddOutputPort(S, OUTPUT_LENGTH, SS_UINT8);
 116         rppAddOutputPort(S, OUTPUT_TRIGGER, SS_BOOLEAN);
 117
 118     /* Set standard options for this block */
 119     rppSetStandardOptions(S);
 120 }
 121
 122
 123 #ifdef MATLAB_MEX_FILE
 124 #define MDL_CHECK_PARAMETERS
 125 static void mdlCheckParameters(SimStruct *S)
 126 {
 127
 128 }
 129 #endif
 130
 131
 132 #ifdef MATLAB_MEX_FILE
 133 #define MDL_SET_WORK_WIDTHS
 134 static void mdlSetWorkWidths(SimStruct *S)
 135 {
 136     /* Set number of run-time parameters */
 137     if (!ssSetNumRunTimeParams(S, PARAM_COUNT)) {
 138         return;
 139     }
 140
 141     /* Register the run-time parameter 1 */
 142     ssRegDlgParamAsRunTimeParam(S, channel_IDX, channel_IDX, "channel", SS_UINT8);
 143     ssRegDlgParamAsRunTimeParam(S, cycleCounterFiltering_IDX, cycleCounterFiltering_IDX, "cycleCounterFiltering", SS_UINT8);
 144     ssRegDlgParamAsRunTimeParam(S, maxPayload_IDX, maxPayload_IDX, "maxPayload", SS_UINT8);
 145     ssRegDlgParamAsRunTimeParam(S, msgBufferInterrupt_IDX, msgBufferInterrupt_IDX, "msgBufferInterrupt", SS_BOOLEAN);
 146     ssRegDlgParamAsRunTimeParam(S, payloadPreambleIndicatorTr_IDX, payloadPreambleIndicatorTr_IDX, "payloadPreambleIndicatorTr", SS_BOOLEAN);
 147     ssRegDlgParamAsRunTimeParam(S, singleTransmit_IDX, singleTransmit_IDX, "singleTransmit", SS_BOOLEAN);
 148     ssRegDlgParamAsRunTimeParam(S, slotId_IDX, slotId_IDX, "slotId", SS_UINT32);
 149     ssRegDlgParamAsRunTimeParam(S, bufferId_IDX, bufferId_IDX, "bufferId", SS_UINT32);
 150 }
 151 #endif
 152
 153
 154 #define COMMON_MDLINITIALIZESAMPLETIMES_INHERIT
 155 #define UNUSED_MDLOUTPUTS
 156 #define UNUSED_MDLTERMINATE
 157 #include "trailer.c"