hti/HtiCommPlugins/HtiUsbSerialCommPlugin/src/HtiUsbSerialCommEcomPlugin.cpp
changeset 36 813b186005b6
parent 30 86a2e675b80a
child 41 838cdffd57ce
equal deleted inserted replaced
30:86a2e675b80a 36:813b186005b6
     1 /*
       
     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     3 * All rights reserved.
       
     4 * This component and the accompanying materials are made available
       
     5 * under the terms of "Eclipse Public License v1.0"
       
     6 * which accompanies this distribution, and is available
       
     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".
       
     8 *
       
     9 * Initial Contributors:
       
    10 * Nokia Corporation - initial contribution.
       
    11 *
       
    12 * Contributors:
       
    13 *
       
    14 * Description:  ECOM plugin for serial communication over USB port
       
    15 *
       
    16 */
       
    17 
       
    18 
       
    19 // INCLUDE FILES
       
    20 #include <badesca.h>
       
    21 #include <f32file.h>
       
    22 
       
    23 #include "HtiUsbSerialCommEcomPlugin.h"
       
    24 #include <HtiCfg.h>
       
    25 #include <HtiLogging.h>
       
    26 
       
    27 // EXTERNAL DATA STRUCTURES
       
    28 
       
    29 // EXTERNAL FUNCTION PROTOTYPES
       
    30 
       
    31 // CONSTANTS
       
    32 _LIT( KHtiUsbSerialError, "HtiUsbSerialError" );
       
    33 _LIT( KHtiOkButton, "OK" );
       
    34 
       
    35 _LIT( KHtiCfgPath,          "\\" ); // root of drive
       
    36 _LIT( KHtiUsbSerialCommCfg, "HTIUsbSerialComm.cfg" );
       
    37 _LIT8( KUsbPortNumber,      "PortNumber" );
       
    38 _LIT8( KUsbDataRate,        "DataRate" );
       
    39 _LIT8( KUsbRetryTimes,      "RetryTimes" );
       
    40 _LIT8( KUsbRetryInterval,   "RetryInterval" );
       
    41 
       
    42 // _LIT( KUsbPddName, "" );
       
    43 _LIT( KUsbLddName, "EUSBC" );
       
    44 _LIT( KUsbCsyName, "ECACM");
       
    45 
       
    46 const TInt KDefaultUsbPort = 1;
       
    47 
       
    48 const static TUint KReceiveBufferLength = 4 * 1024;
       
    49 const static TUint KSendBufferLength =    4 * 1024;
       
    50 
       
    51 const static TInt KMaxHtiNotifierLength = 128;
       
    52 
       
    53 // MACROS
       
    54 
       
    55 // MODULE DATA STRUCTURES
       
    56 
       
    57 // LOCAL FUNCTION PROTOTYPES
       
    58 
       
    59 // FORWARD DECLARATIONS
       
    60 
       
    61 // ============================ MEMBER FUNCTIONS ===============================
       
    62 
       
    63 // -----------------------------------------------------------------------------
       
    64 // CHtiUsbSerialCommEcomPlugin::NewL
       
    65 // Two-phased constructor.
       
    66 // -----------------------------------------------------------------------------
       
    67 CHtiUsbSerialCommEcomPlugin* CHtiUsbSerialCommEcomPlugin::NewL()
       
    68     {
       
    69     HTI_LOG_FUNC_IN( "CHtiUsbSerialCommEcomPlugin::NewL" );
       
    70     CHtiUsbSerialCommEcomPlugin* plugin =
       
    71         new ( ELeave ) CHtiUsbSerialCommEcomPlugin();
       
    72     CleanupStack::PushL( plugin );
       
    73     plugin->ConstructL();
       
    74     CleanupStack::Pop( plugin );
       
    75     HTI_LOG_FUNC_OUT( "CHtiUsbSerialCommEcomPlugin::NewL" );
       
    76     return plugin;
       
    77     }
       
    78 
       
    79 // -----------------------------------------------------------------------------
       
    80 // CHtiUsbSerialCommEcomPlugin::~CHtiUsbSerialCommEcomPlugin
       
    81 // Destructor.
       
    82 // -----------------------------------------------------------------------------
       
    83 CHtiUsbSerialCommEcomPlugin::~CHtiUsbSerialCommEcomPlugin()
       
    84     {
       
    85     HTI_LOG_FUNC_IN( "CHtiUsbSerialCommEcomPlugin::~CHtiUsbSerialCommEcomPlugin" );
       
    86     iCommPort.Close();
       
    87     iCommServ.Close();
       
    88     delete iCfg;
       
    89     User::FreeLogicalDevice( KUsbLddName() );
       
    90     HTI_LOG_FUNC_OUT( "CHtiUsbSerialCommEcomPlugin::~CHtiUsbSerialCommEcomPlugin" );
       
    91     }
       
    92 
       
    93 // -----------------------------------------------------------------------------
       
    94 // CHtiUsbSerialCommEcomPlugin::CHtiUsbSerialCommEcomPlugin
       
    95 // C++ default constructor can NOT contain any code, that might leave.
       
    96 // -----------------------------------------------------------------------------
       
    97 CHtiUsbSerialCommEcomPlugin::CHtiUsbSerialCommEcomPlugin()
       
    98     {
       
    99     // default port settings
       
   100     iPortNumber = KDefaultUsbPort;
       
   101     iDataRate   = EBps115200;
       
   102     iParity     = EParityNone;
       
   103     iDataBits   = EData8;
       
   104     iStopBits   = EStop1;
       
   105     iHandshake  = 0;
       
   106     }
       
   107 
       
   108 // -----------------------------------------------------------------------------
       
   109 // CHtiUsbSerialCommEcomPlugin::ConstructL
       
   110 // Symbian 2nd phase constructor - can leave.
       
   111 // -----------------------------------------------------------------------------
       
   112 void CHtiUsbSerialCommEcomPlugin::ConstructL()
       
   113     {
       
   114     TRAPD( err, LoadConfigL() );
       
   115     if ( err == KErrNone )
       
   116         {
       
   117         ReadConfig();
       
   118         }
       
   119     InitCommServerL();
       
   120     InitCommPortL();
       
   121     }
       
   122 
       
   123 // -----------------------------------------------------------------------------
       
   124 // CHtiUsbSerialCommEcomPlugin::LoadConfigL
       
   125 // Loads the plugin configuration file from disk to iCfg.
       
   126 // -----------------------------------------------------------------------------
       
   127 void CHtiUsbSerialCommEcomPlugin::LoadConfigL()
       
   128     {
       
   129     HTI_LOG_FUNC_IN( "CHtiUsbSerialCommEcomPlugin::LoadConfigL" );
       
   130     iCfg = CHtiCfg::NewL();
       
   131     HTI_LOG_TEXT( "CHtiCfg constructed - loading cfg file" );
       
   132     iCfg->LoadCfgL( KHtiCfgPath, KHtiUsbSerialCommCfg );
       
   133     HTI_LOG_TEXT( "Cfg file loaded" );
       
   134     HTI_LOG_FUNC_OUT( "CHtiUsbSerialCommEcomPlugin::LoadConfigL" );
       
   135     }
       
   136 
       
   137 // -----------------------------------------------------------------------------
       
   138 // CHtiUsbSerialCommEcomPlugin::ReadConfig
       
   139 // Reads the parameters from loaded configuration file.
       
   140 // -----------------------------------------------------------------------------
       
   141 void CHtiUsbSerialCommEcomPlugin::ReadConfig()
       
   142     {
       
   143     HTI_LOG_FUNC_IN( "CHtiUsbSerialCommEcomPlugin::ReadConfig" );
       
   144 
       
   145     TInt portNumberCfg = 0;
       
   146     TRAPD( paramErr,
       
   147             portNumberCfg = iCfg->GetParameterIntL( KUsbPortNumber ) );
       
   148     if ( paramErr != KErrNone )
       
   149         {
       
   150         HTI_LOG_FORMAT(
       
   151             "PortNumber not defined in cfg, using default value %d",
       
   152             iPortNumber );
       
   153         portNumberCfg = iPortNumber;
       
   154         }
       
   155     iPortNumber = portNumberCfg;
       
   156 
       
   157     TInt dataRateCfg = 0;
       
   158     TRAP( paramErr, dataRateCfg = iCfg->GetParameterIntL( KUsbDataRate ) );
       
   159     if ( paramErr != KErrNone )
       
   160         {
       
   161         HTI_LOG_TEXT( "DataRate not defined in cfg, using default" );
       
   162         }
       
   163     else
       
   164         {
       
   165         switch ( dataRateCfg )
       
   166             {
       
   167             case 2400:    iDataRate = EBps2400;    break;
       
   168             case 4800:    iDataRate = EBps4800;    break;
       
   169             case 9600:    iDataRate = EBps9600;    break;
       
   170             case 19200:   iDataRate = EBps19200;   break;
       
   171             case 38400:   iDataRate = EBps38400;   break;
       
   172             case 57600:   iDataRate = EBps57600;   break;
       
   173             case 115200:  iDataRate = EBps115200;  break;
       
   174             case 576000:  iDataRate = EBps576000;  break;
       
   175             case 1152000: iDataRate = EBps1152000; break;
       
   176             case 4000000: iDataRate = EBps4000000; break;
       
   177             default:
       
   178                 HTI_LOG_FORMAT(
       
   179                     "Unsupported DataRate %d defined - using default",
       
   180                     dataRateCfg );
       
   181                 break;
       
   182             }
       
   183         }
       
   184 
       
   185     HTI_LOG_FUNC_OUT( "CHtiUsbSerialCommEcomPlugin::ReadConfig" );
       
   186     }
       
   187 
       
   188 // -----------------------------------------------------------------------------
       
   189 // CHtiUsbSerialCommEcomPlugin::InitCommServerL
       
   190 // Starts the comm server, loads comms module and device drivers.
       
   191 // -----------------------------------------------------------------------------
       
   192 void CHtiUsbSerialCommEcomPlugin::InitCommServerL()
       
   193     {
       
   194     HTI_LOG_FUNC_IN( "CHtiUsbSerialCommEcomPlugin::InitCommServerL" );
       
   195 
       
   196     TInt err = KErrNone;
       
   197 
       
   198     // start the comm server
       
   199     err = StartC32();
       
   200     if ( err != KErrNone && err != KErrAlreadyExists )
       
   201         {
       
   202         ShowErrorNotifierL( _L( "Failed to start comm server" ), err );
       
   203         User::Leave( err );
       
   204         }
       
   205 
       
   206     // connect to RCommServ
       
   207     err = iCommServ.Connect();
       
   208     if ( err != KErrNone )
       
   209         {
       
   210         ShowErrorNotifierL( _L( "Failed to connect to comm server" ), err );
       
   211         User::Leave( err );
       
   212         }
       
   213 
       
   214     // load comms module (CSY file)
       
   215     err = iCommServ.LoadCommModule( KUsbCsyName() );
       
   216     if ( err != KErrNone )
       
   217         {
       
   218         ShowErrorNotifierL( _L( "Failed to load comms module" ), err );
       
   219         User::Leave( err );
       
   220         }
       
   221 
       
   222     /* USB PDD is usually a kernel extension so no need to load separately.
       
   223     // load physical device driver
       
   224     TInt err = User::LoadPhysicalDevice( KUsbPddName );
       
   225     if ( err != KErrNone && err != KErrAlreadyExists )
       
   226         {
       
   227         ShowErrorNotifierL( _L( "Failed to load USB PDD" ), err );
       
   228         User::Leave( err );
       
   229         }
       
   230     */
       
   231 
       
   232     // load logical device driver
       
   233     err = User::LoadLogicalDevice( KUsbLddName() );
       
   234     if ( err != KErrNone && err != KErrAlreadyExists )
       
   235         {
       
   236         ShowErrorNotifierL( _L( "Failed to load USB LDD" ), err );
       
   237         User::Leave( err );
       
   238         }
       
   239 
       
   240     HTI_LOG_FUNC_OUT( "CHtiUsbSerialCommEcomPlugin::InitCommServerL" );
       
   241     }
       
   242 
       
   243 // -----------------------------------------------------------------------------
       
   244 // CHtiUsbSerialCommEcomPlugin::InitCommPortL
       
   245 // Checks that the comms module is valid and opens the port.
       
   246 // -----------------------------------------------------------------------------
       
   247 void CHtiUsbSerialCommEcomPlugin::InitCommPortL()
       
   248     {
       
   249     HTI_LOG_FUNC_IN( "CHtiUsbSerialCommEcomPlugin::InitCommPortL" );
       
   250 
       
   251     TInt err = KErrNone;
       
   252     // check the number of loaded comms modules
       
   253     TInt commsCount = 0;
       
   254     err = iCommServ.NumPorts( commsCount );
       
   255     if ( err != KErrNone || commsCount < 1 )
       
   256         {
       
   257         if ( err != KErrNone )
       
   258             {
       
   259             ShowErrorNotifierL( _L( "Failed to get comms module count" ), err );
       
   260             User::Leave( err );
       
   261             }
       
   262         else
       
   263             {
       
   264             ShowErrorNotifierL( _L( "No comms module loaded" ), KErrNotFound );
       
   265             User::Leave( KErrNotFound );
       
   266             }
       
   267         }
       
   268 
       
   269     HTI_LOG_FORMAT( "Found %d loaded comms modules", commsCount );
       
   270 
       
   271     // get info about our loaded comms module
       
   272     TSerialInfo serialInfo;
       
   273     TBool found = EFalse;
       
   274     for ( TInt i = 0; i < commsCount && !found; i++ )
       
   275         {
       
   276         TBuf<32> moduleName;
       
   277         err = iCommServ.GetPortInfo( i, moduleName, serialInfo );
       
   278         if ( err != KErrNone )
       
   279             {
       
   280             ShowErrorNotifierL( _L( "Failed to get port info" ), err );
       
   281             User::Leave( err );
       
   282             }
       
   283         HTI_LOG_FORMAT( "Found comms module %S", &moduleName );
       
   284         HTI_LOG_FORMAT( "Comms module description: %S",
       
   285             &( serialInfo.iDescription ) );
       
   286         if ( moduleName.CompareF( KUsbCsyName ) == 0 )
       
   287             {
       
   288             found = ETrue;
       
   289             HTI_LOG_FORMAT( "Lowest port num  = %d", serialInfo.iLowUnit );
       
   290             HTI_LOG_FORMAT( "Highest port num = %d", serialInfo.iHighUnit );
       
   291             }
       
   292         }
       
   293 
       
   294     if ( !found )
       
   295         {
       
   296         ShowErrorNotifierL( _L( "Failed to get port info" ), KErrNotFound );
       
   297         User::Leave( KErrNotFound );
       
   298         }
       
   299 
       
   300     // create port name
       
   301     TBuf<KMaxPortName + 4> commPort;
       
   302     commPort.Append( serialInfo.iName );
       
   303     commPort.AppendFill( ':', 2 );
       
   304     commPort.AppendNum( iPortNumber );
       
   305     HTI_LOG_FORMAT( "Opening port %S", &commPort );
       
   306 
       
   307     // try to open the port
       
   308     err = iCommPort.Open( iCommServ, commPort, ECommExclusive, ECommRoleDTE );
       
   309     if ( err )
       
   310         {
       
   311         //read retry parameters from cfg
       
   312         TInt retryTimes = 10;
       
   313         TRAPD( paramRetryTimesErr,
       
   314                 retryTimes = iCfg->GetParameterIntL( KUsbRetryTimes ) );
       
   315         if ( paramRetryTimesErr != KErrNone )
       
   316             {
       
   317             HTI_LOG_TEXT( "RetryTimes is not defined in cfg, using default" );
       
   318             }
       
   319         HTI_LOG_FORMAT( " RetryTimes  = %d", retryTimes );
       
   320         
       
   321         TInt retryInterval = 10;
       
   322         TRAPD( paramRetryIntervalErr,
       
   323                 retryInterval = iCfg->GetParameterIntL( KUsbRetryInterval ) );
       
   324         if ( paramRetryIntervalErr != KErrNone )
       
   325             {
       
   326             HTI_LOG_TEXT( "RetryInterval is not defined in cfg, using default" );
       
   327             }
       
   328         HTI_LOG_FORMAT( " RetryInterval  = %d(s)", retryInterval );
       
   329 
       
   330         // retry to open the port
       
   331         for( TInt i=0; i<retryTimes; i++ )
       
   332             {
       
   333             User::After( retryInterval * 1000000 );
       
   334             err = iCommPort.Open( iCommServ, commPort, ECommExclusive, ECommRoleDTE );
       
   335             if( !err )
       
   336                 {
       
   337                 break;
       
   338                 }
       
   339             }
       
   340 
       
   341         if( err )
       
   342             {
       
   343             HTI_LOG_FORMAT( "Failed to open port %d", err );
       
   344             ShowErrorNotifierL( _L( "Failed to open port" ), err );
       
   345             }
       
   346         }
       
   347     User::LeaveIfError( err );
       
   348     HTI_LOG_TEXT( "Port open - checking port capabilities" );
       
   349 
       
   350     // check port data rate capability
       
   351     TCommCaps portCaps;
       
   352     iCommPort.Caps( portCaps );
       
   353     HTI_LOG_TEXT( "Port capabilities:" );
       
   354     HTI_LOG_FORMAT( " DataRate  = %d", portCaps().iRate );
       
   355     HTI_LOG_FORMAT( " Parity    = %d", portCaps().iParity );
       
   356     HTI_LOG_FORMAT( " DataBits  = %d", portCaps().iDataBits );
       
   357     HTI_LOG_FORMAT( " StopBits  = %d", portCaps().iStopBits );
       
   358     HTI_LOG_FORMAT( " Handshake = %d", portCaps().iHandshake );
       
   359     HTI_LOG_FORMAT( " Signals   = %d", portCaps().iSignals );
       
   360     HTI_LOG_FORMAT( " Fifo      = %d", portCaps().iFifo );
       
   361     HTI_LOG_FORMAT( " SIR       = %d", portCaps().iSIR );
       
   362 
       
   363     TUint reqRateCapsBitmask = RateCapsBitmaskFromRate( iDataRate );
       
   364     HTI_LOG_FORMAT( "Required data rate capability bitmask %d",
       
   365         reqRateCapsBitmask );
       
   366 
       
   367     if ( reqRateCapsBitmask == 0 ||
       
   368          ( reqRateCapsBitmask & portCaps().iRate ) == 0 )
       
   369         {
       
   370         ShowErrorNotifierL( _L( "Unsupported data rate configured" ),
       
   371             KErrNotSupported );
       
   372         User::Leave( KErrNotSupported );
       
   373         }
       
   374     HTI_LOG_TEXT( "Data rate supported - setting port configuration" );
       
   375 
       
   376     // set port configuration
       
   377     TCommConfig portSettings;
       
   378     iCommPort.Config( portSettings );
       
   379     portSettings().iRate      = iDataRate;
       
   380     portSettings().iParity    = iParity;
       
   381     portSettings().iDataBits  = iDataBits;
       
   382     portSettings().iStopBits  = iStopBits;
       
   383     portSettings().iFifo      = EFifoEnable;
       
   384     portSettings().iHandshake = iHandshake;
       
   385 
       
   386     err = iCommPort.SetConfig( portSettings );
       
   387     if ( err )
       
   388         {
       
   389         HTI_LOG_FORMAT( "Failed to set port settings %d", err );
       
   390         ShowErrorNotifierL( _L( "Failed to set port settings" ), err );
       
   391         User::Leave( err );
       
   392         }
       
   393 
       
   394     iCommPort.SetReceiveBufferLength( KReceiveBufferLength );
       
   395 
       
   396     HTI_LOG_TEXT( "Port open and configured" );
       
   397     HTI_LOG_FUNC_OUT( "CHtiUsbSerialCommEcomPlugin::InitCommPortL" );
       
   398     }
       
   399 
       
   400 // -----------------------------------------------------------------------------
       
   401 // CHtiUsbSerialCommEcomPlugin::Receive
       
   402 // Receive data from comm port.
       
   403 // -----------------------------------------------------------------------------
       
   404 void CHtiUsbSerialCommEcomPlugin::Receive( TDes8& aRawdataBuf,
       
   405                                         TRequestStatus& aStatus )
       
   406     {
       
   407     HTI_LOG_FUNC_IN( "CHtiUsbSerialCommEcomPlugin::Receive" );
       
   408     HTI_LOG_FORMAT( "Buf max len: %d", aRawdataBuf.MaxLength() );
       
   409     iCommPort.ReadOneOrMore( aStatus, aRawdataBuf );
       
   410     HTI_LOG_FUNC_OUT( "CHtiUsbSerialCommEcomPlugin::Receive" );
       
   411     }
       
   412 
       
   413 // -----------------------------------------------------------------------------
       
   414 // CHtiUsbSerialCommEcomPlugin::Send
       
   415 // Write data to comm port.
       
   416 // -----------------------------------------------------------------------------
       
   417 void CHtiUsbSerialCommEcomPlugin::Send( const TDesC8& aRawdataBuf,
       
   418                                            TRequestStatus& aStatus )
       
   419     {
       
   420     HTI_LOG_FUNC_IN( "CHtiUsbSerialCommEcomPlugin::Send" );
       
   421     iCommPort.Write( aStatus, aRawdataBuf );
       
   422     HTI_LOG_FUNC_OUT( "CHtiUsbSerialCommEcomPlugin::Send" );
       
   423     }
       
   424 
       
   425 // -----------------------------------------------------------------------------
       
   426 // CHtiUsbSerialCommEcomPlugin::CancelReceive
       
   427 // Cancel a pending read.
       
   428 // -----------------------------------------------------------------------------
       
   429 void CHtiUsbSerialCommEcomPlugin::CancelReceive()
       
   430     {
       
   431     HTI_LOG_FUNC_IN( "CHtiUsbSerialCommEcomPlugin::CancelReceive" );
       
   432     iCommPort.ReadCancel();
       
   433     HTI_LOG_FUNC_OUT( "CHtiUsbSerialCommEcomPlugin::CancelReceive" );
       
   434     }
       
   435 
       
   436 // -----------------------------------------------------------------------------
       
   437 // CHtiUsbSerialCommEcomPlugin::CancelSend
       
   438 // Cancel a pending write.
       
   439 // -----------------------------------------------------------------------------
       
   440 void CHtiUsbSerialCommEcomPlugin::CancelSend()
       
   441     {
       
   442     HTI_LOG_FUNC_IN( "CHtiUsbSerialCommEcomPlugin::CancelSend" );
       
   443     iCommPort.WriteCancel();
       
   444     HTI_LOG_FUNC_OUT( "CHtiUsbSerialCommEcomPlugin::CancelSend" );
       
   445     }
       
   446 
       
   447 // -----------------------------------------------------------------------------
       
   448 // CHtiUsbSerialCommEcomPlugin::GetSendBufferSize
       
   449 // -----------------------------------------------------------------------------
       
   450 TInt CHtiUsbSerialCommEcomPlugin::GetSendBufferSize()
       
   451     {
       
   452     return KSendBufferLength;
       
   453     }
       
   454 
       
   455 // -----------------------------------------------------------------------------
       
   456 // CHtiUsbSerialCommEcomPlugin::GetReceiveBufferSize
       
   457 // -----------------------------------------------------------------------------
       
   458 TInt CHtiUsbSerialCommEcomPlugin::GetReceiveBufferSize()
       
   459     {
       
   460     return KReceiveBufferLength;
       
   461     }
       
   462 
       
   463 // -----------------------------------------------------------------------------
       
   464 // CHtiUsbSerialCommEcomPlugin::RateCapsBitmaskFromRate
       
   465 // Converts a TBps enumeration value to a corresponding bitmask.
       
   466 // -----------------------------------------------------------------------------
       
   467 TUint CHtiUsbSerialCommEcomPlugin::RateCapsBitmaskFromRate( TBps aDataRate )
       
   468     {
       
   469     switch ( aDataRate )
       
   470         {
       
   471         case EBps50:      return KCapsBps50;
       
   472         case EBps75:      return KCapsBps75;
       
   473         case EBps110:     return KCapsBps110;
       
   474         case EBps134:     return KCapsBps134;
       
   475         case EBps150:     return KCapsBps150;
       
   476         case EBps300:     return KCapsBps300;
       
   477         case EBps600:     return KCapsBps600;
       
   478         case EBps1200:    return KCapsBps1200;
       
   479         case EBps1800:    return KCapsBps1800;
       
   480         case EBps2000:    return KCapsBps2000;
       
   481         case EBps2400:    return KCapsBps2400;
       
   482         case EBps3600:    return KCapsBps3600;
       
   483         case EBps4800:    return KCapsBps4800;
       
   484         case EBps7200:    return KCapsBps7200;
       
   485         case EBps9600:    return KCapsBps9600;
       
   486         case EBps19200:   return KCapsBps19200;
       
   487         case EBps38400:   return KCapsBps38400;
       
   488         case EBps57600:   return KCapsBps57600;
       
   489         case EBps115200:  return KCapsBps115200;
       
   490         case EBps230400:  return KCapsBps230400;
       
   491         case EBps460800:  return KCapsBps460800;
       
   492         case EBps576000:  return KCapsBps576000;
       
   493         case EBps1152000: return KCapsBps1152000;
       
   494         case EBps4000000: return KCapsBps4000000;
       
   495         default:          return 0;
       
   496         }
       
   497     }
       
   498 
       
   499 // -----------------------------------------------------------------------------
       
   500 // CHtiUsbSerialCommEcomPlugin::ShowErrorNotifierL
       
   501 // Shows an error notifier dialog with text and error code.
       
   502 // -----------------------------------------------------------------------------
       
   503 void CHtiUsbSerialCommEcomPlugin::ShowErrorNotifierL( const TDesC& aText,
       
   504                                                       TInt aErr )
       
   505     {
       
   506     RNotifier notifier;
       
   507     User::LeaveIfError( notifier.Connect() );
       
   508 
       
   509     TBuf<KMaxHtiNotifierLength> errorMsg;
       
   510     // aText is cut if it's too long - leaving some space also for error code
       
   511     errorMsg.Append( aText.Left( errorMsg.MaxLength() - 10 ) );
       
   512     errorMsg.Append( _L("\n") );
       
   513     errorMsg.AppendNum( aErr );
       
   514 
       
   515     TRequestStatus status;
       
   516     TInt button;
       
   517     notifier.Notify( KHtiUsbSerialError, errorMsg,
       
   518                      KHtiOkButton, KNullDesC, button, status );
       
   519     User::WaitForRequest( status );
       
   520     notifier.Close();
       
   521     }
       
   522 
       
   523 
       
   524 // End of file