ert_make_rtw_hook(hookMethod,modelName,rtwroot,templateMakefile,buildOpts,buildArgs)

function ert_make_rtw_hook(hookMethod,modelName,rtwroot,templateMakefile,buildOpts,buildArgs)
% ERT_MAKE_RTW_HOOK - ERT hook file for the RTW build process (make_rtw).
% 
% <<Includes multiple configuration options using buildArgs>>
%
% Called by RTW for system target file ert.tlc for strategic stages of the RTW
% process.
%
% ert_make_rtw_hook(hookMethod, modelName, rtwroot, templateMakefile,
%                   buildOpts, buildArgs)
%
% hookMethod:
%   Specifies the stage of the RTW build process.  Possible values are
%   entry, before_tlc, before_make, and exit.
%
% modelName:
%   Name of model.  Valid for all stages.
%
% rtwroot:
%   Reserved.
%
% templateMakefile:
%   Name of template makefile.  Valid for stages 'before_make' and 'exit'.
%
% buildOpts:
%   Valid for stages 'before_make' and 'exit', a MATLAB structure
%   containing fields
%
%   modules:
%     Char array specifying list of generated C files: model.c, model_data.c,
%     etc.
%
%   codeFormat:
%     Char array containing code format: 'RealTime', 'RealTimeMalloc',
%     'Embedded-C', and 'S-Function'
%
%   noninlinedSFcns:
%     Cell array specifying list of non-inlined S-Functions.
%
%   compilerEnvVal:
%     String specifying compiler environment variable value, e.g.,
%     D:\Applications\Microsoft Visual
%
% buildArgs:
%   Char array containing the argument to make_rtw.  When pressing the build
%   button through the simulation parameter dialog, buildArgs is taken
%   verbatim from whatever follows make_rtw in the make command edit field.
%   <<inludes options for -opt, -debug, -model>>

% Copyright 1996-2003 The MathWorks, Inc.
% $Revision: $ $Date: $
  
  switch hookMethod
   case 'entry'
    % Called at start of code generation process (before anything happens.)
    % Valid arguments at this stage are hookMethod, modelName, and buildArgs.
    
    disp('Auto configuring model for ERT target based on ert_make_rtw_hook.m file.')

    uset_param(modelName,'BackupSettings');
    try
      if strcmpi(buildArgs, '-opt')
       disp('Configuration based on optimized code efficiency (-opt)');
       ConfigurationOptimized(modelName);
      elseif strcmpi(buildArgs, '-debug')
       disp('Configuation based on maximum clarity and traceability (-debug)');
       ConfigurationDebug(modelName);
      elseif strcmpi(buildArgs, '-model')
       disp('Configuration based on current model settings (-model)');
       return;
      else
       disp('Configuration based on default autoconfig values');
       EntryConfiguration(modelName);
      end
      disp('To change setings use -opt/-debug/-model as args for make_rtw');
    catch
      uset_param(modelName,'RestoreSettings');
      error(lasterr)
    end
    
   case 'before_tlc'
    % Called just prior to invoking TLC Compiler (actual code generation.)
    % Valid arguments at this stage are hookMethod, modelName, and
    % buildArgs
    
   case 'before_make'
    % Called after code generation is complete, and just prior to kicking
    % off make process (assuming code generation only is not selected.)  All
    % arguments are valid at this stage.

   case 'exit'
    % Called at the end of the RTW build process.  All arguments are valid
    % at this stage.
    
    % disp('Restoring model configuration.');
    % uset_param(modelName,'RestoreSettings');
    
  end

  
function EntryConfiguration(model)
  
  % Options related to code efficiency (set for maximum efficiency)
  
  uset_param(model,'InlineParams','on');
  uset_param(model,'BlockReduction','on');
  uset_param(model,'ConditionalExecOptimization','on');
  uset_param(model,'ParameterPooling','on');
  uset_param(model,'OptimizeBlockIOStorage','on');
  uset_param(model,'ExpressionFolding','on');
  uset_param(model,'FoldNonRolledExpr','on');
  uset_param(model,'EnforceIntegerDowncast','off');
  uset_param(model,'InlineInvariantSignals','on');
  uset_param(model,'LocalBlockOutputs','on');
  uset_param(model,'BufferReuse','on');
  uset_param(model,'RollThreshold',5);
  uset_param(model,'ZeroExternalMemoryAtStartup','off');
  uset_param(model,'ZeroInternalMemoryAtStartup','off');
  uset_param(model,'CombineOutputUpdateFcns','on');
  uset_param(model,'InitFltsAndDblsToZero','off');
  uset_param(model,'StateBitSets','on');
  uset_param(model,'DataBitSets','on');
  
  % It is very important to configure to use boolean data types, but
  % may cause a model to fail to update diagram.
  
  uset_param(model,'BooleanDataType','on');
  
  % Target Environment
  
  % Note: Target word lengths should be set inside ert_rtw_info_hook.m, and
  % extracted as follows.  For details on setting up the C implemenation
  % details for RTW, type
  %
  % >> type example_rtw_info_hook
  %
  % This code synchronizes the model word sizes to the target word sizes.

  targetwordlenghts = struct2cell(rtwwordlengths(model));
  wordlengths = [] ; comma = '';
  for idx = 1 : length(targetwordlenghts)
    str = num2str(double(targetwordlenghts{idx}));
    wordlengths = [wordlengths,sprintf('%s%s',comma,str)];
    comma = ',';
  end
  
  uset_param(model,'Solver','FixedStepDiscrete');
  uset_param(model,'SolverMode','Auto');
  uset_param(model,'GenerateSampleERTMain','on');
  uset_param(model,'TargetOS','BareBoardExample');
  uset_param(model,'PurelyIntegerCode','off');
  uset_param(model,'ProdHWDeviceType','Microprocessor');
  uset_param(model,'ProdHWWordLengths', wordlengths);
  uset_param(model,'GenFloatMathFcnCalls','ANSI_C');
  
  % Identifiers
  
  uset_param(model,'PrefixModelToSubsysFcnNames','on');
  uset_param(model,'IncHierarchyInIds','on');
  uset_param(model,'IncDataTypeInIds','on');
  uset_param(model,'MaxIdLength',31);
  uset_param(model,'InlinedPrmAccess','Literals');
  uset_param(model,'IgnoreCustomStorageClasses','off');
  
  % Traceability
  
  uset_param(model,'GenerateComments','on');
  uset_param(model,'InsertBlockDesc','on');
  uset_param(model,'ShowEliminatedStatement','off');
  
  % Interfaces
  
  uset_param(model,'MultiInstanced','off');
  uset_param(model,'MultiInstanceErrorCode','Error');
  uset_param(model,'RootIOStructures','off');
  uset_param(model,'SuppressErrorStatus','off');
  uset_param(model,'IgnoreCustomStorageClasses','off');
  uset_param(model,'ParameterTuning','off');
  uset_param(model,'BlockIOSignals','off');
  uset_param(model,'ExtMode','off');
  uset_param(model,'IncludeMdlTerminateFcn','off');
  uset_param(model,'GenerateASAP2','off');
  
  % Build environment
  
  uset_param(model,'RTWVerbose','off');
  uset_param(model,'GenerateReport','off');
  uset_param(model,'GenerateErtSFunction','off');
  
  % Workspace I/O
  
  uset_param(model,'MatFileLogging','off');
  uset_param(model,'SaveTime','off');
  uset_param(model,'SaveOutput','off');
  uset_param(model,'SaveState','off');
  uset_param(model,'SaveFinalState','off');