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1 /* |
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2 * Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Monitors signal changes on network side and reports changes |
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15 * |
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16 */ |
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17 |
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18 |
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19 #ifdef PRJ_USE_NETWORK_STUBS |
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20 #include <c32comm_stub.h> |
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21 #else |
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22 #include <d32comm.h> |
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23 #endif |
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24 #include "DunTransporter.h" |
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25 #include "DunSignalNotify.h" |
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26 #include "DunDebug.h" |
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27 |
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28 const TUint KDunSixLowestBitsMask = 0x3F; // Symbian magic |
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29 |
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30 // ======== MEMBER FUNCTIONS ======== |
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31 |
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32 // --------------------------------------------------------------------------- |
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33 // Two-phased constructor. |
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34 // --------------------------------------------------------------------------- |
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35 // |
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36 CDunSignalNotify* CDunSignalNotify::NewL( MDunTransporterUtilityAux* aUtility ) |
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37 { |
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38 CDunSignalNotify* self = new (ELeave) CDunSignalNotify( aUtility ); |
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39 CleanupStack::PushL( self ); |
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40 self->ConstructL(); |
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41 CleanupStack::Pop( self ); |
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42 return self; |
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43 } |
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44 |
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45 // --------------------------------------------------------------------------- |
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46 // Destructor |
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47 // --------------------------------------------------------------------------- |
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48 // |
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49 CDunSignalNotify::~CDunSignalNotify() |
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50 { |
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51 FTRACE(FPrint( _L("CDunSignalNotify::~CDunSignalNotify()") )); |
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52 ResetData(); |
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53 FTRACE(FPrint( _L("CDunSignalNotify::~CDunSignalNotify() complete") )); |
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54 } |
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55 |
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56 // --------------------------------------------------------------------------- |
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57 // Resets data to initial values |
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58 // --------------------------------------------------------------------------- |
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59 // |
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60 void CDunSignalNotify::ResetData() |
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61 { |
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62 FTRACE(FPrint( _L("CDunSignalNotify::ResetData()") )); |
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63 // APIs affecting this: |
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64 // IssueRequest() |
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65 Stop(); |
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66 // AddCallback() |
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67 iCallbacks.Close(); |
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68 // AddEndpointReadyCallback() |
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69 iERCallbacks.Close(); |
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70 // Internal |
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71 Initialize(); |
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72 FTRACE(FPrint( _L("CDunSignalNotify::ResetData() complete") )); |
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73 } |
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74 |
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75 // --------------------------------------------------------------------------- |
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76 // Adds callback for line status change controlling |
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77 // The callback will be called when line status change is detected in |
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78 // endpoint |
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79 // --------------------------------------------------------------------------- |
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80 // |
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81 TInt CDunSignalNotify::AddCallback( MDunConnMon* aCallback ) |
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82 { |
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83 FTRACE(FPrint( _L("CDunSignalNotify::AddCallback()" ) )); |
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84 if ( !aCallback ) |
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85 { |
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86 FTRACE(FPrint( _L("CDunSignalNotify::AddCallback() (ERROR) complete" ) )); |
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87 return KErrGeneral; |
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88 } |
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89 TInt retTemp = iCallbacks.Find( aCallback ); |
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90 if ( retTemp != KErrNotFound ) |
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91 { |
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92 FTRACE(FPrint( _L("CDunSignalNotify::AddCallback() (already exists) complete" ) )); |
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93 return KErrAlreadyExists; |
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94 } |
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95 retTemp = iCallbacks.Append( aCallback ); |
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96 if ( retTemp != KErrNone ) |
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97 { |
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98 FTRACE(FPrint( _L("CDunSignalNotify::AddCallback() (append failed!) complete" ) )); |
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99 return retTemp; |
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100 } |
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101 FTRACE(FPrint( _L("CDunSignalNotify::AddCallback() complete" ) )); |
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102 return KErrNone; |
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103 } |
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104 |
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105 // --------------------------------------------------------------------------- |
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106 // Adds callback for endpoint readiness |
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107 // The callback will be called when the endpoint is ready or not ready |
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108 // --------------------------------------------------------------------------- |
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109 // |
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110 TInt CDunSignalNotify::AddEndpointReadyCallback( |
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111 MDunEndpointReady* aERCallback ) |
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112 { |
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113 FTRACE(FPrint( _L("CDunSignalNotify::AddEndpointReadyCallback()" ) )); |
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114 if ( !aERCallback ) |
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115 { |
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116 FTRACE(FPrint( _L("CDunSignalNotify::AddEndpointReadyCallback() (aERCallback) not initialized!" ) )); |
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117 return KErrGeneral; |
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118 } |
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119 TInt retTemp = iERCallbacks.Find( aERCallback ); |
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120 if ( retTemp != KErrNotFound ) |
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121 { |
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122 FTRACE(FPrint( _L("CDunSignalNotify::AddEndpointReadyCallback() (already exists) complete" ) )); |
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123 return KErrAlreadyExists; |
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124 } |
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125 retTemp = iERCallbacks.Append( aERCallback ); |
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126 if ( retTemp != KErrNone ) |
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127 { |
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128 FTRACE(FPrint( _L("CDunSignalNotify::AddEndpointReadyCallback() (append failed!) complete" ) )); |
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129 return retTemp; |
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130 } |
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131 ReportEndpointReady( ETrue ); // report immediately as this is a hack |
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132 FTRACE(FPrint( _L("CDunSignalNotify::AddEndpointReadyCallback() complete" ) )); |
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133 return KErrNone; |
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134 } |
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135 |
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136 // --------------------------------------------------------------------------- |
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137 // Sets media to use for this endpoint monitor |
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138 // --------------------------------------------------------------------------- |
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139 // |
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140 TInt CDunSignalNotify::SetMedia( RComm* aComm ) |
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141 { |
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142 FTRACE(FPrint( _L("CDunSignalNotify::SetMedia()" ))); |
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143 if ( !aComm ) |
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144 { |
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145 FTRACE(FPrint( _L("CDunSignalNotify::SetMedia() (aComm) not initialized!" ))); |
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146 return KErrGeneral; |
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147 } |
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148 // As it's not possible to listen for RFCOMM signal changes the RTS and DTR |
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149 // signals should be anyway set high to Dataport |
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150 aComm->SetSignals( KSignalRTS|KSignalDTR, 0 ); |
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151 // Next check if signal change notification from Dataport supported |
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152 TCommCaps2 caps; |
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153 aComm->Caps( caps ); |
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154 if ( !(caps().iNotificationCaps & KNotifySignalsChangeSupported) ) |
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155 { |
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156 FTRACE(FPrint( _L("CDunSignalNotify::SetMedia() (RComm) (not supported) complete" ))); |
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157 return KErrNotSupported; |
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158 } |
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159 iListenSignals = KSignalDTEInputs; |
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160 iNetwork = aComm; |
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161 FTRACE(FPrint( _L("CDunSignalNotify::SetMedia() (RComm) complete" ))); |
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162 return KErrNone; |
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163 } |
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164 |
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165 // --------------------------------------------------------------------------- |
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166 // Issues request to start monitoring the endpoint for line status change |
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167 // --------------------------------------------------------------------------- |
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168 // |
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169 TInt CDunSignalNotify::IssueRequest() |
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170 { |
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171 FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest()" ))); |
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172 if ( iSignalNotifyState != EDunStateIdle ) |
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173 { |
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174 FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() (not ready) complete" ))); |
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175 return KErrNotReady; |
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176 } |
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177 if ( !iNetwork ) |
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178 { |
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179 FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() (iNetwork) not initialized!" ) )); |
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180 return KErrGeneral; |
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181 } |
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182 TUint currentSignals = iNetwork->Signals( iListenSignals ); |
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183 TUint oldSignalsLow = iSignals & KDunSixLowestBitsMask; |
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184 TUint newSignalsLow = currentSignals & KDunSixLowestBitsMask; |
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185 TUint oldSignalsHigh = oldSignalsLow * KSignalChanged; |
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186 TUint newSignalsHigh = newSignalsLow * KSignalChanged; |
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187 FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() oldSignalsLow=0x%08X" ), oldSignalsLow )); |
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188 FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() newSignalsLow=0x%08X" ), newSignalsLow )); |
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189 FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() oldSignalsHigh=0x%08X" ), oldSignalsHigh )); |
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190 FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() newSignalsHigh=0x%08X" ), newSignalsHigh )); |
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191 if ( newSignalsLow != oldSignalsLow ) |
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192 { |
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193 FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() signals already set..." ) )); |
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194 iSignals = newSignalsLow | (oldSignalsHigh ^ newSignalsHigh); |
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195 ManageSignalChange(); |
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196 } |
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197 else |
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198 { |
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199 FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() start waiting for change..." ) )); |
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200 iStatus = KRequestPending; |
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201 iNetwork->NotifySignalChange( iStatus, iSignals, iListenSignals ); |
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202 SetActive(); |
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203 iSignalNotifyState = EDunStateSignalNotify; |
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204 } |
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205 FTRACE(FPrint( _L("CDunSignalNotify::IssueRequest() complete" ))); |
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206 return KErrNone; |
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207 } |
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208 |
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209 // --------------------------------------------------------------------------- |
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210 // Stops monitoring the endpoint for line status change |
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211 // --------------------------------------------------------------------------- |
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212 // |
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213 TInt CDunSignalNotify::Stop() |
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214 { |
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215 FTRACE(FPrint( _L("CDunSignalNotify::Stop()" ))); |
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216 if ( iSignalNotifyState != EDunStateSignalNotify ) |
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217 { |
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218 FTRACE(FPrint( _L("CDunSignalNotify::Stop() (not ready) complete" ))); |
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219 return KErrNotReady; |
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220 } |
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221 if ( !iNetwork ) |
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222 { |
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223 FTRACE(FPrint( _L("CDunSignalNotify::Stop() (iNetwork) not initialized!" ))); |
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224 return KErrGeneral; |
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225 } |
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226 iNetwork->NotifySignalChangeCancel(); |
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227 Cancel(); |
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228 iSignalNotifyState = EDunStateIdle; |
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229 FTRACE(FPrint( _L("CDunSignalNotify::Stop() complete" ))); |
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230 return KErrNone; |
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231 } |
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232 |
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233 // --------------------------------------------------------------------------- |
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234 // CDunSignalNotify::CDunSignalNotify |
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235 // --------------------------------------------------------------------------- |
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236 // |
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237 CDunSignalNotify::CDunSignalNotify( MDunTransporterUtilityAux* aUtility ) : |
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238 CActive( EPriorityHigh ), |
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239 iUtility( aUtility ) |
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240 { |
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241 Initialize(); |
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242 } |
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243 |
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244 // --------------------------------------------------------------------------- |
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245 // CDunSignalNotify::ConstructL |
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246 // --------------------------------------------------------------------------- |
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247 // |
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248 void CDunSignalNotify::ConstructL() |
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249 { |
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250 FTRACE(FPrint( _L("CDunSignalNotify::ConstructL()" ) )); |
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251 if ( !iUtility ) |
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252 { |
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253 User::Leave( KErrGeneral ); |
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254 } |
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255 CActiveScheduler::Add( this ); |
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256 FTRACE(FPrint( _L("CDunSignalNotify::ConstructL() complete" ) )); |
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257 } |
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258 |
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259 // --------------------------------------------------------------------------- |
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260 // Initializes this class |
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261 // --------------------------------------------------------------------------- |
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262 // |
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263 void CDunSignalNotify::Initialize() |
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264 { |
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265 FTRACE(FPrint( _L("CDunSignalNotify::Initialize()" ) )); |
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266 // Don't initialize iUtility here (it is set through NewL) |
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267 iSignalNotifyState = EDunStateIdle; |
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268 iListenSignals = 0; |
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269 iSignals = 0; |
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270 iNetwork = NULL; |
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271 FTRACE(FPrint( _L("CDunSignalNotify::Initialize() complete" ) )); |
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272 } |
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273 |
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274 // --------------------------------------------------------------------------- |
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275 // Manages signal changes |
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276 // --------------------------------------------------------------------------- |
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277 // |
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278 void CDunSignalNotify::ManageSignalChange() |
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279 { |
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280 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange()" ) )); |
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281 // The following signals are input signals from network side: |
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282 // KSignalDTEInputs = KSignalCTS | KSignalDSR | KSignalDCD | KSignalRNG |
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283 if ( iSignals & KCTSChanged ) |
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284 { |
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285 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() checking CTS..." ) )); |
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286 if ( iSignals & KSignalCTS ) // CTS changed to high |
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287 { |
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288 ReportSignalChange( KSignalCTS, 0 ); |
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289 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() CTS changed high" ) )); |
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290 } |
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291 else // CTS changed to low |
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292 { |
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293 ReportSignalChange( 0, KSignalCTS ); |
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294 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() CTS changed low" ) )); |
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295 } |
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296 } |
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297 if ( iSignals & KDSRChanged ) |
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298 { |
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299 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() checking DSR..." ) )); |
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300 if ( iSignals & KSignalDSR ) // DSR changed to high |
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301 { |
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302 ReportSignalChange( KSignalDSR, 0 ); |
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303 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() DSR changed high" ) )); |
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304 } |
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305 else // DSR changed to low |
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306 { |
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307 ReportSignalChange( 0, KSignalDSR ); |
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308 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() DSR changed low" ) )); |
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309 } |
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310 } |
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311 if ( iSignals & KDCDChanged ) |
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312 { |
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313 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() checking DCD..." ) )); |
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314 if ( iSignals & KSignalDCD ) // DCD changed to high |
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315 { |
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316 ReportSignalChange( KSignalDCD, 0 ); |
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317 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() DCD changed high" ) )); |
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318 } |
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319 else // DCD changed to low |
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320 { |
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321 ReportSignalChange( 0, KSignalDCD ); |
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322 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() DCD changed low" ) )); |
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323 } |
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324 } |
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325 if ( iSignals & KRNGChanged ) |
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326 { |
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327 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() checking RNG..." ) )); |
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328 if ( iSignals & KSignalRNG ) // RNG changed to high |
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329 { |
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330 ReportSignalChange( KSignalRNG, 0 ); |
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331 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() RNG changed high" ) )); |
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332 } |
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333 else // RNG changed to low |
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334 { |
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335 ReportSignalChange( 0, KSignalRNG ); |
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336 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() RNG changed low" ) )); |
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337 } |
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338 } |
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339 IssueRequest(); |
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340 FTRACE(FPrint( _L("CDunSignalNotify::ManageSignalChange() complete" ) )); |
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341 } |
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342 |
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343 // --------------------------------------------------------------------------- |
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344 // Reports signal change |
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345 // --------------------------------------------------------------------------- |
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346 // |
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347 void CDunSignalNotify::ReportSignalChange( TUint aSetMask, TUint aClearMask ) |
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348 { |
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349 FTRACE(FPrint( _L("CDunSignalNotify::ReportSignalChange()" ) )); |
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350 |
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351 TUint signalType = aClearMask; |
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352 TUint signalHigh = EFalse; |
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353 if ( aSetMask != 0 ) |
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354 { |
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355 signalType = aSetMask; |
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356 signalHigh = ETrue; |
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357 } |
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358 TInt i; |
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359 TInt count = iCallbacks.Count(); |
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360 TDunConnectionReason connReason; |
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361 TConnId localId = iUtility->GetLocalId( iNetwork ); |
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362 connReason.iReasonType = EDunReasonTypeSignal; |
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363 connReason.iContext = EDunMediaContextNetwork; |
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364 connReason.iSignalType = signalType; |
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365 connReason.iSignalHigh = signalHigh; |
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366 connReason.iDirection = EDunDirectionUndefined; |
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367 connReason.iErrorCode = KErrNone; |
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368 for ( i=0; i<count; i++ ) |
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369 { |
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370 TRAP_IGNORE( |
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371 iCallbacks[i]->NotifyProgressChangeL( localId, connReason ) ); |
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372 } |
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373 |
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374 FTRACE(FPrint( _L("CDunSignalNotify::ReportSignalChange() complete" ) )); |
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375 } |
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376 |
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377 // --------------------------------------------------------------------------- |
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378 // Reports endpoint ready or not ready |
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379 // --------------------------------------------------------------------------- |
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380 // |
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381 void CDunSignalNotify::ReportEndpointReady( TBool aReady ) |
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382 { |
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383 FTRACE(FPrint( _L("CDunSignalNotify::ReportEndpointReady()" ) )); |
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384 TInt count = iERCallbacks.Count(); |
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385 for ( TInt i=0; i<count; i++ ) |
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386 { |
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387 if ( aReady ) |
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388 { |
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389 iERCallbacks[i]->NotifyEndpointReady(); |
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390 } |
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391 else // not ready |
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392 { |
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393 iERCallbacks[i]->NotifyEndpointNotReady(); |
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394 } |
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395 } |
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396 FTRACE(FPrint( _L("CDunSignalNotify::ReportEndpointReady() complete" ) )); |
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397 } |
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398 |
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399 // --------------------------------------------------------------------------- |
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400 // From class CActive. |
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401 // Gets called when line status changes |
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402 // --------------------------------------------------------------------------- |
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403 // |
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404 void CDunSignalNotify::RunL() |
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405 { |
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406 FTRACE(FPrint( _L("CDunSignalNotify::RunL()" ) )); |
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407 iSignalNotifyState = EDunStateIdle; |
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408 TInt retTemp = iStatus.Int(); |
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409 if ( retTemp != KErrNone ) |
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410 { |
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411 TInt i; |
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412 TInt count = iCallbacks.Count(); |
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413 TDunConnectionReason connReason; |
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414 TConnId localId = iUtility->GetLocalId( iNetwork ); |
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415 connReason.iReasonType = EDunReasonTypeRunL; |
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416 connReason.iContext = EDunMediaContextNetwork; |
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417 connReason.iSignalType = 0; |
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418 connReason.iSignalHigh = EFalse; |
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419 connReason.iDirection = EDunDirectionUndefined; |
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420 connReason.iErrorCode = retTemp; |
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421 for ( i=0; i<count; i++ ) |
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422 { |
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423 TRAP_IGNORE( |
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424 iCallbacks[i]->NotifyProgressChangeL( localId, connReason ) ); |
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425 } |
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426 return; |
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427 } |
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428 FTRACE(FPrint( _L("CDunSignalNotify::RunL() managing signal 0x%08X" ), iSignals )); |
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429 ManageSignalChange(); |
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430 FTRACE(FPrint( _L("CDunSignalNotify::RunL() complete" ) )); |
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431 } |
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432 |
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433 // --------------------------------------------------------------------------- |
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434 // From class CActive. |
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435 // Gets called on cancel |
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436 // --------------------------------------------------------------------------- |
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437 // |
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438 void CDunSignalNotify::DoCancel() |
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439 { |
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440 } |