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1 /* |
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2 * Copyright (c) 2008-2010 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: Copies signals changes between network and local media |
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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 "DunSignalCopy.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 CDunSignalCopy* CDunSignalCopy::NewL() |
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37 { |
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38 CDunSignalCopy* self = new (ELeave) CDunSignalCopy(); |
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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 CDunSignalCopy::~CDunSignalCopy() |
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50 { |
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51 FTRACE(FPrint( _L("CDunSignalCopy::~CDunSignalCopy()") )); |
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52 ResetData(); |
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53 FTRACE(FPrint( _L("CDunSignalCopy::~CDunSignalCopy() 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 CDunSignalCopy::ResetData() |
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61 { |
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62 FTRACE(FPrint( _L("CDunSignalCopy::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 // Internal |
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69 Initialize(); |
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70 FTRACE(FPrint( _L("CDunSignalCopy::ResetData() complete") )); |
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71 } |
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72 |
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73 // --------------------------------------------------------------------------- |
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74 // Adds callback for line status change controlling |
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75 // The callback will be called when RunL error is detected |
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76 // --------------------------------------------------------------------------- |
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77 // |
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78 TInt CDunSignalCopy::AddCallback( MDunConnMon* aCallback ) |
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79 { |
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80 FTRACE(FPrint( _L("CDunSignalCopy::AddCallback()" ) )); |
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81 if ( !aCallback ) |
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82 { |
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83 FTRACE(FPrint( _L("CDunSignalCopy::AddCallback() (aCallback) not initialized!" ) )); |
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84 return KErrGeneral; |
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85 } |
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86 TInt retTemp = iCallbacks.Find( aCallback ); |
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87 if ( retTemp != KErrNotFound ) |
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88 { |
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89 FTRACE(FPrint( _L("CDunSignalCopy::AddCallback() (already exists) complete" ) )); |
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90 return KErrAlreadyExists; |
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91 } |
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92 retTemp = iCallbacks.Append( aCallback ); |
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93 if ( retTemp != KErrNone ) |
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94 { |
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95 FTRACE(FPrint( _L("CDunSignalCopy::AddCallback() (append failed!) complete" ) )); |
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96 return retTemp; |
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97 } |
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98 FTRACE(FPrint( _L("CDunSignalCopy::AddCallback() complete" ) )); |
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99 return KErrNone; |
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100 } |
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101 |
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102 // --------------------------------------------------------------------------- |
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103 // Sets media to use for this endpoint monitor |
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104 // --------------------------------------------------------------------------- |
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105 // |
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106 TInt CDunSignalCopy::SetMedia( RComm* aComm, |
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107 RComm* aNetwork, |
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108 TDunStreamType aStreamType ) |
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109 { |
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110 FTRACE(FPrint( _L("CDunSignalCopy::SetMedia()" ))); |
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111 if ( !aNetwork ) |
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112 { |
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113 FTRACE(FPrint( _L("CDunSignalCopy::SetMedia() (aComm) not initialized!" ))); |
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114 return KErrGeneral; |
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115 } |
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116 RComm* comm = NULL; |
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117 if ( aStreamType == EDunStreamTypeUpstream ) |
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118 { |
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119 iContextInUse = EDunMediaContextLocal; |
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120 comm = aComm; |
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121 } |
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122 else if ( aStreamType == EDunStreamTypeDownstream ) |
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123 { |
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124 iContextInUse = EDunMediaContextNetwork; |
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125 comm = aNetwork; |
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126 } |
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127 else |
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128 { |
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129 FTRACE(FPrint( _L("CDunSignalCopy::SetMedia() (aStreamtype) not initialized!" ))); |
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130 return KErrGeneral; |
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131 } |
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132 // No possibility to do iUtility->GetLocalId() here as aComm is not yet |
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133 // in channel data; use aComm directly |
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134 TCommCaps2 caps; |
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135 comm->Caps( caps ); |
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136 if ( !(caps().iNotificationCaps & KNotifySignalsChangeSupported) ) |
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137 { |
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138 FTRACE(FPrint( _L("CDunSignalCopy::SetMedia() (RComm) (not supported) complete" ))); |
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139 return KErrNotSupported; |
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140 } |
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141 iComm = aComm; |
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142 iNetwork = aNetwork; |
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143 iStreamType = aStreamType; |
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144 FTRACE(FPrint( _L("CDunSignalCopy::SetMedia() (RComm) complete" ))); |
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145 return KErrNone; |
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146 } |
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147 |
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148 // --------------------------------------------------------------------------- |
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149 // Issues request to start monitoring the endpoint for line status change |
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150 // --------------------------------------------------------------------------- |
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151 // |
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152 TInt CDunSignalCopy::IssueRequest() |
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153 { |
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154 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest()" ))); |
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155 if ( iSignalCopyState != EDunStateIdle ) |
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156 { |
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157 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() (not ready) complete" ) )); |
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158 return KErrNotReady; |
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159 } |
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160 RComm* comm = NULL; |
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161 if ( iStreamType == EDunStreamTypeUpstream ) |
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162 { |
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163 iListenSignals = KSignalDCEInputs; |
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164 comm = iComm; |
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165 } |
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166 else if ( iStreamType == EDunStreamTypeDownstream ) |
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167 { |
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168 iListenSignals = KSignalDTEInputs; |
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169 comm = iNetwork; |
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170 } |
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171 else |
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172 { |
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173 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() (ERROR) complete" ) )); |
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174 return KErrGeneral; |
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175 } |
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176 TUint currentSignals = comm->Signals( iListenSignals ); |
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177 TUint oldSignalsLow = iSignals & KDunSixLowestBitsMask; |
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178 TUint newSignalsLow = currentSignals & KDunSixLowestBitsMask; |
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179 TUint oldSignalsHigh = oldSignalsLow * KSignalChanged; |
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180 TUint newSignalsHigh = newSignalsLow * KSignalChanged; |
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181 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() oldSignalsLow=0x%08X" ), oldSignalsLow )); |
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182 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() newSignalsLow=0x%08X" ), newSignalsLow )); |
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183 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() oldSignalsHigh=0x%08X" ), oldSignalsHigh )); |
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184 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() newSignalsHigh=0x%08X" ), newSignalsHigh )); |
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185 if ( newSignalsLow != oldSignalsLow ) |
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186 { |
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187 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() signals already set..." ) )); |
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188 iSignals = newSignalsLow | (oldSignalsHigh ^ newSignalsHigh); |
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189 ManageSignalChange(); |
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190 } |
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191 else |
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192 { |
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193 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() start waiting for change..." ) )); |
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194 iStatus = KRequestPending; |
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195 comm->NotifySignalChange( iStatus, iSignals, iListenSignals ); |
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196 SetActive(); |
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197 iSignalCopyState = EDunStateSignalCopy; |
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198 } |
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199 FTRACE(FPrint( _L("CDunSignalCopy::IssueRequest() complete" ))); |
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200 return KErrNone; |
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201 } |
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202 |
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203 // --------------------------------------------------------------------------- |
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204 // Stops monitoring the endpoint for line status change |
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205 // --------------------------------------------------------------------------- |
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206 // |
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207 TInt CDunSignalCopy::Stop() |
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208 { |
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209 FTRACE(FPrint( _L("CDunSignalCopy::Stop()" ))); |
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210 if ( iSignalCopyState != EDunStateSignalCopy ) |
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211 { |
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212 FTRACE(FPrint( _L("CDunSignalCopy::Stop() (not ready) complete" ))); |
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213 return KErrNotReady; |
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214 } |
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215 if ( iStreamType == EDunStreamTypeUpstream ) |
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216 { |
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217 iComm->NotifySignalChangeCancel(); |
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218 } |
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219 else if ( iStreamType == EDunStreamTypeDownstream ) |
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220 { |
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221 iNetwork->NotifySignalChangeCancel(); |
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222 } |
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223 else |
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224 { |
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225 FTRACE(FPrint( _L("CDunSignalCopy::Stop() (ERROR) complete" ))); |
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226 return KErrGeneral; |
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227 } |
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228 Cancel(); |
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229 iSignalCopyState = EDunStateIdle; |
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230 FTRACE(FPrint( _L("CDunSignalCopy::Stop() complete" ))); |
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231 return KErrNone; |
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232 } |
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233 |
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234 // --------------------------------------------------------------------------- |
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235 // CDunSignalCopy::CDunSignalCopy |
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236 // --------------------------------------------------------------------------- |
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237 // |
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238 CDunSignalCopy::CDunSignalCopy() : |
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239 CActive( EPriorityHigh ) |
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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 // CDunSignalCopy::ConstructL |
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246 // --------------------------------------------------------------------------- |
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247 // |
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248 void CDunSignalCopy::ConstructL() |
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249 { |
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250 FTRACE(FPrint( _L("CDunSignalCopy::ConstructL()" ) )); |
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251 CActiveScheduler::Add( this ); |
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252 FTRACE(FPrint( _L("CDunSignalCopy::ConstructL() complete" ) )); |
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253 } |
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254 |
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255 // --------------------------------------------------------------------------- |
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256 // Initializes this class |
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257 // --------------------------------------------------------------------------- |
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258 // |
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259 void CDunSignalCopy::Initialize() |
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260 { |
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261 FTRACE(FPrint( _L("CDunSignalCopy::Initialize()" ) )); |
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262 iContextInUse = EDunMediaContextUndefined; |
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263 iStreamType = EDunStreamTypeUndefined; |
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264 iSignalCopyState = EDunStateIdle; |
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265 iListenSignals = 0; |
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266 iSignals = 0; |
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267 iNetwork = NULL; |
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268 iComm = NULL; |
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269 FTRACE(FPrint( _L("CDunSignalCopy::Initialize() complete" ) )); |
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270 } |
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271 |
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272 // --------------------------------------------------------------------------- |
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273 // Manages signal changes |
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274 // --------------------------------------------------------------------------- |
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275 // |
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276 void CDunSignalCopy::ManageSignalChange() |
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277 { |
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278 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChange()" ) )); |
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279 |
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280 if ( iStreamType == EDunStreamTypeUpstream ) |
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281 { |
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282 // Manage upstream case |
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283 ManageSignalChangeUpstream(); |
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284 } |
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285 else // iStreamType == EDunStreamTypeDownstream |
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286 { |
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287 // Manage downstream case |
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288 ManageSignalChangeDownstream(); |
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289 } |
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290 |
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291 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChange() complete" ) )); |
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292 } |
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293 |
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294 // --------------------------------------------------------------------------- |
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295 // Manages upstream signal changes |
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296 // --------------------------------------------------------------------------- |
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297 // |
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298 void CDunSignalCopy::ManageSignalChangeUpstream() |
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299 { |
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300 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream()" ) )); |
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301 // For upstream the following signals are set for local media: |
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302 // KSignalDCEInputs = KSignalRTS | KSignalDTR |
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303 if ( iSignals & KRTSChanged ) |
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304 { |
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305 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() checking RTS..." ) )); |
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306 if ( iSignals & KSignalRTS ) // RTS changed to high |
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307 { |
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308 ChangeUpstreamSignal( KSignalRTS, 0 ); |
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309 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() RTS changed high" ) )); |
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310 } |
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311 else // RTS changed to low |
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312 { |
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313 ChangeUpstreamSignal( 0, KSignalRTS ); |
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314 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() RTS changed low" ) )); |
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315 } |
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316 } |
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317 if ( iSignals & KDTRChanged ) |
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318 { |
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319 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() checking DTR..." ) )); |
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320 if ( iSignals & KSignalDTR ) // DTR changed to high |
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321 { |
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322 ChangeUpstreamSignal( KSignalDTR, 0 ); |
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323 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() DTR changed high" ) )); |
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324 } |
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325 else // DTR changed to low |
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326 { |
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327 ChangeUpstreamSignal( 0, KSignalDTR ); |
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328 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() DTR changed low" ) )); |
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329 } |
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330 } |
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331 IssueRequest(); |
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332 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeUpstream() complete" ) )); |
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333 } |
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334 |
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335 // --------------------------------------------------------------------------- |
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336 // Manages downstream signal changes |
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337 // --------------------------------------------------------------------------- |
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338 // |
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339 void CDunSignalCopy::ManageSignalChangeDownstream() |
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340 { |
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341 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream()" ) )); |
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342 // For downstream the following signals are set for network: |
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343 // KSignalDTEInputs = KSignalCTS | KSignalDSR | KSignalDCD | KSignalRNG |
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344 if ( iSignals & KCTSChanged ) |
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345 { |
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346 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() checking CTS..." ) )); |
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347 if ( iSignals & KSignalCTS ) // CTS changed to high or initially high |
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348 { |
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349 ChangeDownstreamSignal( KSignalCTS, 0 ); |
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350 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() CTS changed high" ) )); |
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351 } |
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352 else // CTS changed to low |
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353 { |
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354 ChangeDownstreamSignal( 0, KSignalCTS ); |
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355 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() CTS changed low" ) )); |
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356 } |
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357 } |
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358 if ( iSignals & KDSRChanged ) |
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359 { |
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360 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() checking DSR..." ) )); |
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361 if ( iSignals & KSignalDSR ) // DSR changed to high |
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362 { |
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363 ChangeDownstreamSignal( KSignalDSR, 0 ); |
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364 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() DSR changed high" ) )); |
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365 } |
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366 else // DSR changed to low |
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367 { |
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368 ChangeDownstreamSignal( 0, KSignalDSR ); |
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369 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() DSR changed low" ) )); |
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370 } |
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371 } |
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372 if ( iSignals & KDCDChanged ) |
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373 { |
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374 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() checking DCD..." ) )); |
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375 if ( iSignals & KSignalDCD ) // DCD changed to high |
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376 { |
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377 ChangeDownstreamSignal( KSignalDCD, 0 ); |
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378 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() DCD changed high" ) )); |
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379 } |
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380 else // DCD changed to low |
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381 { |
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382 ChangeDownstreamSignal( 0, KSignalDCD ); |
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383 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() DCD changed low" ) )); |
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384 } |
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385 } |
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386 if ( iSignals & KRNGChanged ) |
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387 { |
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388 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() checking RNG..." ) )); |
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389 if ( iSignals & KSignalRNG ) // RNG changed to high |
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390 { |
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391 ChangeDownstreamSignal( KSignalRNG, 0 ); |
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392 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() RNG changed high" ) )); |
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393 } |
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394 else // RNG changed to low |
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395 { |
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396 ChangeDownstreamSignal( 0, KSignalRNG ); |
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397 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() RNG changed low" ) )); |
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398 } |
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399 } |
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400 IssueRequest(); |
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401 FTRACE(FPrint( _L("CDunSignalCopy::ManageSignalChangeDownstream() complete" ) )); |
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402 } |
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403 |
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404 // --------------------------------------------------------------------------- |
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405 // Changes upstream signal |
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406 // --------------------------------------------------------------------------- |
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407 // |
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408 void CDunSignalCopy::ChangeUpstreamSignal( TUint aSetMask, TUint aClearMask ) |
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409 { |
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410 FTRACE(FPrint( _L("CDunSignalCopy::ChangeUpstreamSignal()" ) )); |
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411 if ( iNetwork ) |
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412 { |
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413 iNetwork->SetSignals( aSetMask, aClearMask ); |
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414 } |
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415 // Add other cases here if necessary |
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416 FTRACE(FPrint( _L("CDunSignalCopy::ChangeUpstreamSignal() complete" ) )); |
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417 } |
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418 |
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419 // --------------------------------------------------------------------------- |
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420 // Changes downstream signal |
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421 // --------------------------------------------------------------------------- |
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422 // |
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423 void CDunSignalCopy::ChangeDownstreamSignal( TUint aSetMask, TUint aClearMask ) |
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424 { |
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425 FTRACE(FPrint( _L("CDunSignalCopy::ChangeDownstreamSignal()" ) )); |
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426 if ( iComm ) |
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427 { |
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428 iComm->SetSignals( aSetMask, aClearMask ); |
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429 } |
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430 // Add other cases here if necessary |
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431 FTRACE(FPrint( _L("CDunSignalCopy::ChangeDownstreamSignal() complete" ) )); |
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432 } |
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433 |
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434 // --------------------------------------------------------------------------- |
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435 // From class CActive. |
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436 // Gets called when line status changes |
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437 // --------------------------------------------------------------------------- |
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438 // |
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439 void CDunSignalCopy::RunL() |
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440 { |
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441 FTRACE(FPrint( _L("CDunSignalCopy::RunL()" ) )); |
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442 iSignalCopyState = EDunStateIdle; |
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443 TInt retTemp = iStatus.Int(); |
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444 if ( retTemp != KErrNone ) |
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445 { |
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446 FTRACE(FPrint( _L("CDunSignalCopy::RunL() (failed) complete (%d)"), retTemp)); |
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447 TInt i; |
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448 TInt count = iCallbacks.Count(); |
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449 TDunConnectionReason connReason; |
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450 connReason.iReasonType = EDunReasonTypeRunL; |
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451 connReason.iContext = iContextInUse; |
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452 connReason.iSignalType = 0; |
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453 connReason.iSignalHigh = EFalse; |
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454 connReason.iDirection = EDunDirectionUndefined; |
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455 connReason.iErrorCode = retTemp; |
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456 for ( i=0; i<count; i++ ) |
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457 { |
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458 TRAP_IGNORE( |
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459 iCallbacks[i]->NotifyProgressChangeL( iComm, connReason ) ); |
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460 } |
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461 return; |
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462 } |
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463 FTRACE(FPrint( _L("CDunSignalCopy::RunL() managing signal 0x%08X" ), iSignals )); |
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464 ManageSignalChange(); |
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465 FTRACE(FPrint( _L("CDunSignalCopy::RunL() complete" ) )); |
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466 } |
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467 |
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468 // --------------------------------------------------------------------------- |
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469 // From class CActive. |
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470 // Gets called on cancel |
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471 // --------------------------------------------------------------------------- |
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472 // |
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473 void CDunSignalCopy::DoCancel() |
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474 { |
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475 } |