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1 /* |
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2 * Copyright (c) 2007-2008 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: Implementation of the handover trigger |
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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 |
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20 #include <e32base.h> |
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21 |
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22 #include <vccsubscribekeys.h> |
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23 #include "vccuipsproperty.h" |
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24 #include "vcchotrigger.h" |
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25 #include "vccsignallevelhandler.h" |
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26 #include "vccwlansignallevelhandler.h" |
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27 #include "vccgsmsignallevelhandler.h" |
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28 #include "rubydebug.h" |
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29 #include "vcchopolicyreader.h" |
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30 #include "vcccchmonitor.h" |
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31 #include "vccengpsproperty.h" |
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32 #include "cvccperformer.h" |
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33 |
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34 // Min. signal strength. |
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35 static const TInt32 KStrengthMin = 110; |
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36 |
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37 // ======== MEMBER FUNCTIONS ======== |
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38 |
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39 // --------------------------------------------------------------------------- |
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40 // Symbian constructor |
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41 // --------------------------------------------------------------------------- |
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42 // |
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43 EXPORT_C CVccHoTrigger* CVccHoTrigger::NewL() |
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44 { |
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45 RUBY_DEBUG_BLOCKL( "CVccHoTrigger::NewL" ); |
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46 |
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47 CVccHoTrigger* self = new ( ELeave ) CVccHoTrigger(); |
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48 |
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49 CleanupStack::PushL( self ); |
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50 |
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51 self->ConstructL(); |
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52 |
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53 CleanupStack::Pop( self ); |
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54 |
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55 return self; |
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56 } |
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57 |
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58 // --------------------------------------------------------------------------- |
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59 // Destructor |
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60 // --------------------------------------------------------------------------- |
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61 // |
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62 CVccHoTrigger::~CVccHoTrigger() |
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63 { |
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64 RUBY_DEBUG0( "CVccHoTrigger::~CVccHoTrigger() - ENTER" ); |
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65 |
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66 delete iProperty; |
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67 delete iWlanSignalLevelHandler; |
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68 delete iGsmSignalLevelHandler; |
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69 delete iHoPolicyReader; |
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70 delete iCchMonitor; |
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71 delete iEngPsProperty; |
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72 |
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73 RUBY_DEBUG0( "CVccHoTrigger::~CVccHoTrigger() - EXIT" ); |
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74 } |
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75 |
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76 // ----------------------------------------------------------------------------- |
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77 // CVccHoTrigger::CVccHoTrigger() |
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78 // C++ default constructor can NOT contain any code, that might leave. |
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79 // ----------------------------------------------------------------------------- |
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80 // |
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81 CVccHoTrigger::CVccHoTrigger() : //: CActive( EPriorityStandard ) |
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82 iGsmClass( ESignalClassUndefined ), |
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83 iWlanClass( ESignalClassUndefined ), |
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84 iManualHoDone( EFalse ), |
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85 iHoNotAllowed( EFalse ), |
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86 iHoAllowedIfCsOriginated( ETrue ) |
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87 { |
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88 RUBY_DEBUG_BLOCK( "CVccHoTrigger::CVccHoTrigger" ); |
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89 } |
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90 // --------------------------------------------------------------------------- |
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91 // 2nd phase constructor |
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92 // --------------------------------------------------------------------------- |
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93 // |
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94 void CVccHoTrigger::ConstructL() |
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95 { |
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96 RUBY_DEBUG_BLOCKL( "CVccHoTrigger::ConstructL" ); |
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97 |
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98 iProperty = CVccUiPsProperty::NewL(); |
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99 iHoPolicyReader = CVccHoPolicyReader::NewL(); |
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100 iHoPolicyReader->ReadSettingsL(); |
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101 |
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102 iEngPsProperty = CVccEngPsProperty::NewL(); |
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103 iPolicy = iHoPolicyReader->HoPolicy(); |
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104 TSignalLevelParams gsm = iHoPolicyReader->CsSignalLevelParams(); |
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105 TSignalLevelParams wlan = iHoPolicyReader->PsSignalLevelParams(); |
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106 |
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107 |
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108 iWlanSignalLevelHandler = |
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109 CVccWlanSignalLevelHandler::NewL( *this, wlan, *iEngPsProperty ); |
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110 |
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111 |
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112 iGsmSignalLevelHandler = |
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113 CVccGsmSignalLevelHandler::NewL( *this, gsm ); |
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114 |
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115 iHoAllowedIfCsOriginated = iPolicy.DtAllowedWhenCsOriginated(); |
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116 // Previous signal level class must be undefined |
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117 iPreviousGsmClass = ESignalClassUndefined; |
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118 iPreviousWlanClass = ESignalClassUndefined; |
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119 // In the beginning the VoIP service is not available. |
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120 // This will be changed when the cch monitor calls us |
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121 // when the service is available. |
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122 iCchServiceStatus = EServiceUnavailable; |
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123 |
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124 // CS network has signal level zero if the service is not |
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125 // available. |
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126 iCsSignalLevel = KStrengthMin; |
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127 |
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128 // We are not stared yet. |
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129 iStarted = EFalse; |
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130 |
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131 // Update P&S keys to tell if we can do ho or not. |
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132 UpdatePsKeysL(); |
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133 // Create the CCH monitor. We are the observer to be |
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134 // notified when the status changes. |
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135 iCchMonitor = CVccCchMonitor::NewL( *this ); |
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136 } |
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137 |
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138 // ----------------------------------------------------------------------------- |
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139 // Stop monitoring |
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140 // ----------------------------------------------------------------------------- |
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141 // |
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142 EXPORT_C void CVccHoTrigger::Stop() |
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143 { |
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144 RUBY_DEBUG_BLOCK( "CVccHoTrigger::Stop" ); |
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145 Stop( *iWhoStartedMe ); |
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146 } |
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147 |
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148 // ----------------------------------------------------------------------------- |
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149 // Stop monitoring |
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150 // ----------------------------------------------------------------------------- |
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151 // |
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152 EXPORT_C void CVccHoTrigger::Stop( CVccPerformer& aStopper ) |
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153 { |
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154 RUBY_DEBUG_BLOCK( "CVccHoTrigger::Stop" ); |
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155 // If someone else that the one who started us tries |
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156 // to stop us, we do not allow it. |
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157 // There may be several performers that are in differnet state |
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158 // and in those state they do not need trigger and thus try |
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159 // to stop us. |
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160 if ( iWhoStartedMe == &aStopper ) |
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161 { |
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162 iWhoStartedMe = NULL; |
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163 iStarted = EFalse; |
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164 TRAP_IGNORE( UpdatePsKeysL() ); |
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165 TRAP_IGNORE( iProperty->NotifySubscriberL( EVccNoRequestOngoing ) ); |
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166 iWlanSignalLevelHandler->Stop(); |
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167 iGsmSignalLevelHandler->Stop(); |
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168 |
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169 iGsmClass = ESignalClassUndefined; |
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170 iWlanClass = ESignalClassUndefined; |
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171 |
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172 // Reset CS signal strength to min |
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173 iCsSignalLevel = KStrengthMin; |
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174 |
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175 // Disable (do not send notifications). |
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176 // The service is not actually disabled. |
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177 // It will be disabled (if needed) when the monitor |
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178 // is deleted. |
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179 iCchMonitor->DisableService(); |
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180 RUBY_DEBUG0( " -Trigger stopped"); |
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181 } |
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182 } |
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183 |
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184 // ----------------------------------------------------------------------------- |
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185 // Start monitoring |
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186 // We must not leave. |
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187 // ----------------------------------------------------------------------------- |
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188 // |
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189 EXPORT_C void CVccHoTrigger::Start( CVccPerformer& aWhoStartedMe, |
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190 TBool aCsOriginated ) |
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191 { |
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192 RUBY_DEBUG_BLOCK( "CVccHoTrigger::Start" ); |
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193 if( iHoAllowedIfCsOriginated == EFalse && aCsOriginated ) |
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194 { |
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195 RUBY_DEBUG0( "HO not allowed for CS originated calls" ); |
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196 |
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197 Stop(); |
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198 return; |
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199 } |
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200 //anyone can start, but only the last one who started can stop the trigger |
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201 iWhoStartedMe = &aWhoStartedMe; |
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202 if( !iStarted ) |
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203 { |
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204 |
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205 // Previous signal level class must be undefined |
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206 iPreviousGsmClass = ESignalClassUndefined; |
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207 iPreviousWlanClass = ESignalClassUndefined; |
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208 |
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209 // read signal high/low levels, timers etc. |
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210 TRAPD( err, iHoPolicyReader->ReadSettingsL() ); |
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211 RUBY_DEBUG1( "reading ho settings, err = %d", err ); |
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212 |
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213 if ( !err ) |
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214 { |
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215 TSignalLevelParams gsm = iHoPolicyReader->CsSignalLevelParams(); |
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216 TSignalLevelParams wlan = iHoPolicyReader->PsSignalLevelParams(); |
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217 iPolicy = iHoPolicyReader->HoPolicy(); |
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218 |
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219 iWlanSignalLevelHandler->SetParams( wlan ); |
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220 iGsmSignalLevelHandler->SetParams( gsm ); |
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221 |
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222 TRAPD( err_wlan, iWlanSignalLevelHandler->StartL() ); |
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223 RUBY_DEBUG1( "starting wlan signal level handler, err = %d", err_wlan ); |
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224 TRAPD( err_gsm, iGsmSignalLevelHandler->StartL() ); |
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225 RUBY_DEBUG1( "starting gsm signal level handler, err = %d", err_gsm ); |
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226 |
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227 if ( !err_wlan && !err_gsm ) |
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228 { |
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229 // Enable the VoIP service to be able to do VoIP calls. |
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230 TRAPD( err_cch, iCchMonitor->EnableServiceL() ); |
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231 RUBY_DEBUG1( "enabling service, err = %d", err_cch ); |
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232 |
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233 if ( !err_cch ) |
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234 { |
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235 // Everything was started ok |
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236 iStarted = ETrue; |
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237 } |
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238 } |
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239 else |
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240 { |
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241 // Stop the handlers just in case either one was started |
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242 iWlanSignalLevelHandler->Stop(); |
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243 iGsmSignalLevelHandler->Stop(); |
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244 } |
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245 } |
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246 |
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247 TRAP_IGNORE( UpdatePsKeysL() ); |
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248 } |
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249 } |
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250 |
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251 // ----------------------------------------------------------------------------- |
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252 // Set the domain type of the current call |
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253 // ----------------------------------------------------------------------------- |
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254 // |
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255 EXPORT_C void CVccHoTrigger::SetCurrentDomainType( TCallDomainType aDomainType ) |
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256 { |
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257 RUBY_DEBUG_BLOCK( "CVccHoTrigger::SetCurrentDomainType" ); |
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258 iDomainType = aDomainType; |
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259 } |
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260 |
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261 // ----------------------------------------------------------------------------- |
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262 // Set the preferred domain type |
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263 // ----------------------------------------------------------------------------- |
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264 // |
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265 EXPORT_C void CVccHoTrigger::SetPreferredDomainType( |
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266 TVccHoPolicyPreferredDomain aDomainType ) |
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267 { |
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268 RUBY_DEBUG1( "CVccHoTrigger::SetPreferredDomainType(%d)", aDomainType ); |
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269 iPolicy.SetPreferredDomain( aDomainType ); |
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270 } |
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271 |
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272 // ----------------------------------------------------------------------------- |
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273 // Set Immediate Domain Transfer on/off |
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274 // ----------------------------------------------------------------------------- |
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275 // |
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276 EXPORT_C void CVccHoTrigger::SetImmediateDomainTransfer( TBool aImmediateDT ) |
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277 { |
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278 RUBY_DEBUG1( "CVccHoTrigger::SetImmediateDomainTransfer(%d)", aImmediateDT ); |
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279 iPolicy.SetDoImmediateHo( aImmediateDT ); |
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280 } |
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281 |
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282 // ----------------------------------------------------------------------------- |
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283 // Handles wlan signal change notifications |
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284 // ----------------------------------------------------------------------------- |
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285 // |
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286 void CVccHoTrigger::WlanSignalChanged( |
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287 TInt32 /*aSignalStrength*/, |
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288 TSignalStrengthClass aClass ) |
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289 { |
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290 RUBY_DEBUG_BLOCK( "CVccHoTrigger::WlanSignalChanged" ); |
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291 |
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292 //Store signal strength class to that we know later what is the strength |
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293 iWlanClass = aClass; |
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294 |
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295 RUBY_DEBUG1( " -iWlanClass=%x ", iWlanClass ); |
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296 RUBY_DEBUG1( " -iDomainType=%x ", iDomainType ); |
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297 RUBY_DEBUG1( " -iGsmClass=%x ", iGsmClass ); |
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298 RUBY_DEBUG1( " -DoImmediateHO=%x ", iPolicy.DoImmediateHo() ); |
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299 RUBY_DEBUG1( " -PreferredDomain=%x ", iPolicy.PreferredDomain() ); |
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300 RUBY_DEBUG1( " -iGsmClass=%x ", iGsmClass ); |
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301 RUBY_DEBUG1( " -DoHoInHeldWaitingCalls=%x ", iPolicy.DoHoInHeldWaitingCalls() ); |
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302 RUBY_DEBUG0( "0 = GOOD, 1 = WEAK, 2 = UNDEFINED" ); |
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303 |
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304 // If the previous class is the same as the new one |
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305 // - do nothing. |
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306 |
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307 if ( iPreviousWlanClass == iWlanClass ) |
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308 { |
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309 if (iWlanClass == ESignalClassWeak) |
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310 { |
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311 RUBY_DEBUG0( "Signal is still weak try again to do HO" ); |
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312 } |
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313 else |
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314 { |
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315 RUBY_DEBUG0( "No change in WLAN signal class -> return" ); |
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316 return; |
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317 } |
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318 } |
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319 else |
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320 { |
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321 iPreviousWlanClass = iWlanClass; |
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322 } |
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323 |
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324 TriggerHo(); |
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325 } |
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326 |
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327 // ----------------------------------------------------------------------------- |
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328 // Handles GSM singnal change notifications |
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329 // ----------------------------------------------------------------------------- |
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330 // |
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331 void CVccHoTrigger::GsmSignalChanged( |
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332 TInt32 aSignalStrength, |
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333 TSignalStrengthClass aClass ) |
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334 { |
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335 RUBY_DEBUG_BLOCK( "VccHoTrigger::GsmSignalChanged" ); |
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336 RUBY_DEBUG1( " -iCsSignalLevel=%d ", aSignalStrength ); |
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337 |
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338 //Store signal strength class to that we know later what is the strength |
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339 iGsmClass = aClass; |
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340 |
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341 // Save the signal strength as "status". |
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342 // Zero (0) means that the service is not available. |
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343 iCsSignalLevel = aSignalStrength; |
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344 |
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345 // Update P&S keys to tell if we can do ho or not. |
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346 // If the signal level has gone to zero, we are unable to |
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347 // do hondover. |
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348 |
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349 TVccHoStatus hoStatus( EVccHoStateUnknown ); |
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350 iEngPsProperty->GetCurrentHoStatus( hoStatus ); |
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351 |
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352 if( hoStatus != EVccCsToPsHoStarted || hoStatus != EVccCsToPsHoInprogress |
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353 || hoStatus != EVccPsToCsHoStarted || hoStatus != EVccPsToCsHoInprogress ) |
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354 { |
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355 RUBY_DEBUG0( "HO not in progress, updating keys" ); |
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356 TRAP_IGNORE( UpdatePsKeysL() ); |
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357 } |
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358 |
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359 RUBY_DEBUG1( " -iWlanClass=%x ", iWlanClass ); |
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360 RUBY_DEBUG1( " -iDomainType=%x ", iDomainType ); |
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361 RUBY_DEBUG1( " -iGsmClass=%x ", iGsmClass ); |
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362 RUBY_DEBUG1( " -DoImmediateHO=%x ", iPolicy.DoImmediateHo() ); |
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363 RUBY_DEBUG1( " -PreferredDomain=%x ", iPolicy.PreferredDomain() ); |
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364 RUBY_DEBUG1( " -DoHoInHeldWaitingCalls=%x ", iPolicy.DoHoInHeldWaitingCalls() ); |
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365 RUBY_DEBUG0( "0 = GOOD, 1 = WEAK, 2 = UNDEFINED" ); |
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366 |
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367 // If the previous class is the same as the new one |
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368 // - do nothing. |
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369 |
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370 if ( iPreviousGsmClass == iGsmClass && iWlanClass != ESignalClassWeak ) |
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371 { |
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372 RUBY_DEBUG0( "No change in GSM signal class -> return" ); |
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373 |
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374 return; |
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375 } |
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376 else |
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377 { |
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378 iPreviousGsmClass = iGsmClass; |
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379 } |
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380 |
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381 TriggerHo(); |
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382 } |
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383 |
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384 // ----------------------------------------------------------------------------- |
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385 // Handles CCH monitor notifications |
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386 // ----------------------------------------------------------------------------- |
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387 // |
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388 void CVccHoTrigger::CchServiceStatusChanged( TServiceStatus aStatus ) |
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389 { |
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390 RUBY_DEBUG_BLOCK( "VccHoTrigger::CchServiceStateChanged" ); |
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391 RUBY_DEBUG1( " -Service status = %d", aStatus ); |
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392 |
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393 // Save the status |
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394 iCchServiceStatus = aStatus; |
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395 |
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396 TRAP_IGNORE( UpdatePsKeysL() ); |
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397 TriggerHo(); |
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398 } |
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399 |
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400 // ----------------------------------------------------------------------------- |
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401 // Check if the CS or PS services are available or not |
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402 // ----------------------------------------------------------------------------- |
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403 // |
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404 TBool CVccHoTrigger::ServicesAvailable() |
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405 { |
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406 RUBY_DEBUG_BLOCK( "CVccHoTrigger::AreServicesAvailable" ); |
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407 |
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408 TBool retVal( ETrue ); |
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409 |
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410 // If PS service (VoIP service) is unavailable or |
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411 // the CS service == 0 (i.e. signal level), |
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412 // we cannot do handover. |
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413 |
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414 if ( iCchServiceStatus == EServiceUnavailable || |
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415 iCsSignalLevel == KStrengthMin ) |
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416 { |
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417 RUBY_DEBUG0( " -VoIP/CS service(s) not available" ); |
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418 retVal = EFalse; |
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419 } |
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420 |
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421 return retVal; |
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422 } |
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423 |
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424 // ----------------------------------------------------------------------------- |
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425 // Update (write) service status state to P&S. |
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426 // ----------------------------------------------------------------------------- |
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427 // |
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428 void CVccHoTrigger::UpdatePsKeysL() |
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429 { |
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430 RUBY_DEBUG_BLOCK( "CVccHoTrigger::UpdatePsKeysL" ); |
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431 |
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432 // If we are started and both services are available, |
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433 // handover can be done. |
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434 // Services available in CS means that we have |
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435 // signal strength != KStrengthMin (which is 110, returned |
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436 // from the CS signal level monitor). |
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437 |
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438 RUBY_DEBUG1( " -iStarted = %d", iStarted ); |
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439 RUBY_DEBUG1( " -iHoNotAllowed = %d", iHoNotAllowed ); |
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440 RUBY_DEBUG1( " -Service status = %d (0=unavailable, 1=available)", iCchServiceStatus ); |
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441 RUBY_DEBUG1( " -CS signal min level = 110, current level = %d", iCsSignalLevel ); |
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442 |
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443 if ( iStarted && |
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444 ( iCchServiceStatus == EServiceAvailable ) && |
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445 ( iCsSignalLevel != KStrengthMin ) && |
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446 ( !iHoNotAllowed ) ) |
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447 { |
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448 RUBY_DEBUG0( " -We are started and both services are available" ); |
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449 // Check HO direction restrictions |
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450 if ( ( iPolicy.AllowedDirection() & ECsToPsAllowed ) && |
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451 ( iPolicy.AllowedDirection() & EPsToCsAllowed ) ) |
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452 { |
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453 if( iPolicy.DoHoInHeldWaitingCalls() ) |
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454 { |
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455 RUBY_DEBUG0( " -Services available and ho allowed to both \ |
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456 directions, also in multicall" ); |
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457 iEngPsProperty->NotifySubscriberL( EVccHoStateIdle, KErrNone ); |
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458 } |
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459 else |
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460 { |
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461 RUBY_DEBUG0( " -Services available and ho allowed to both \ |
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462 directions but not in multicall" ); |
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463 iEngPsProperty->NotifySubscriberL( EVccHoStateIdleIfSingleCall, KErrNone ); |
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464 } |
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465 } |
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466 else if ( !( iPolicy.AllowedDirection() & ECsToPsAllowed ) && |
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467 ( iPolicy.AllowedDirection() & EPsToCsAllowed ) ) |
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468 { |
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469 if( iPolicy.DoHoInHeldWaitingCalls() ) |
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470 { |
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471 RUBY_DEBUG0( " -HO allowed only to CS" ); |
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472 iEngPsProperty->NotifySubscriberL( EVccCsToPsNotAllowed, KErrNone ); |
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473 } |
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474 else |
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475 { |
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476 RUBY_DEBUG0( " -HO allowed only to CS, in single call situation" ); |
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477 iEngPsProperty->NotifySubscriberL( EVccHoAllowedToCsIfSingleCall, KErrNone ); |
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478 } |
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479 } |
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480 else if ( !( iPolicy.AllowedDirection() & EPsToCsAllowed ) && |
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481 ( iPolicy.AllowedDirection() & ECsToPsAllowed ) ) |
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482 { |
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483 if( iPolicy.DoHoInHeldWaitingCalls() ) |
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484 { |
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485 RUBY_DEBUG0( " -HO allowed only to PS" ); |
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486 iEngPsProperty->NotifySubscriberL( EVccPsToCsNotAllowed, KErrNone ); |
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487 } |
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488 else |
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489 { |
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490 RUBY_DEBUG0( " -HO allowed only to PS, in single call situation" ); |
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491 iEngPsProperty->NotifySubscriberL( EVccHoAllowedToPsIfSingleCall, KErrNone ); |
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492 } |
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493 } |
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494 } |
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495 else |
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496 { |
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497 RUBY_DEBUG0( " -We are stopped or services are unavailable:" ); |
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498 iEngPsProperty->NotifySubscriberL( EVccHoUnavailable, KErrNotReady ); |
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499 } |
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500 } |
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501 |
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502 // ----------------------------------------------------------------------------- |
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503 // If manual HO is done, no automatic should be made. |
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504 // ----------------------------------------------------------------------------- |
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505 // |
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506 EXPORT_C void CVccHoTrigger::ManualHoCallStarted() |
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507 { |
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508 RUBY_DEBUG_BLOCK( "CVccHoTrigger::ManualHoCallStarted" ); |
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509 iManualHoDone = ETrue; |
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510 //notify Wlan Signal Level Handler so it can stop polling WLAN signal |
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511 iWlanSignalLevelHandler->SetManualHoDone( ETrue ); |
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512 } |
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513 |
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514 // ----------------------------------------------------------------------------- |
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515 // After manual HO call has been released automatic HOs can be made again. |
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516 // ----------------------------------------------------------------------------- |
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517 // |
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518 EXPORT_C void CVccHoTrigger::ManualHoCallReleased() |
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519 { |
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520 RUBY_DEBUG_BLOCK( "CVccHoTrigger::ManualHoCallReleased" ); |
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521 iManualHoDone = EFalse; |
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522 |
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523 iWlanSignalLevelHandler->SetManualHoDone( EFalse ); |
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524 } |
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525 |
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526 // ----------------------------------------------------------------------------- |
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527 // During conference HO is not allowed |
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528 // ----------------------------------------------------------------------------- |
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529 // |
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530 EXPORT_C void CVccHoTrigger::HoNotAllowedL() |
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531 { |
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532 RUBY_DEBUG_BLOCK( "CVccHoTrigger::HoNotAllowedL" ); |
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533 iHoNotAllowed = ETrue; |
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534 UpdatePsKeysL(); |
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535 } |
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536 |
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537 // ----------------------------------------------------------------------------- |
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538 // After conference HO is allowed again |
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539 // ----------------------------------------------------------------------------- |
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540 // |
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541 EXPORT_C void CVccHoTrigger::HoAllowed() |
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542 { |
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543 RUBY_DEBUG_BLOCK( "CVccHoTrigger::HoAllowed" ); |
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544 iHoNotAllowed = EFalse; |
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545 TRAP_IGNORE( UpdatePsKeysL() ); |
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546 } |
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547 |
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548 // ----------------------------------------------------------------------------- |
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549 // Read settings |
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550 // ----------------------------------------------------------------------------- |
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551 // |
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552 EXPORT_C void CVccHoTrigger::ReadHoAllowedWhenCsOriginatedSettingL() |
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553 { |
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554 iHoPolicyReader->ReadSettingsL(); |
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555 iPolicy = iHoPolicyReader->HoPolicy(); |
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556 iHoAllowedIfCsOriginated = iPolicy.DtAllowedWhenCsOriginated(); |
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557 } |
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558 |
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559 // ----------------------------------------------------------------------------- |
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560 // Initiate the actual ho when its ok |
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561 // ----------------------------------------------------------------------------- |
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562 // |
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563 void CVccHoTrigger::TriggerHo() |
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564 { |
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565 RUBY_DEBUG_BLOCK( "CVccHoTrigger::TriggerHo" ); |
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566 |
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567 RUBY_DEBUG1("Current domain is: %d", iDomainType); |
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568 //Check if manual ho is already made during this call and the |
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569 //service availability. |
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570 if( iManualHoDone || !ServicesAvailable() || iHoNotAllowed ) |
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571 { |
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572 return; |
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573 } |
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574 |
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575 //If immediate ho is "ON" do it first and then return. |
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576 if( iPolicy.DoImmediateHo() ) |
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577 { |
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578 if ( DoImmediateHo() ) |
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579 { |
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580 RUBY_DEBUG0( "VccHoTrigger::TriggerHo - immediate HO was initiated" ); |
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581 return; |
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582 } |
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583 RUBY_DEBUG0( "VccHoTrigger::TriggerHo - no immediate HO" ); |
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584 } |
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585 |
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586 if ( ( iWlanClass == ESignalClassWeak || iCchServiceStatus == EServiceUnavailable )&& |
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587 iGsmClass == ESignalClassNormal && |
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588 ( iPolicy.AllowedDirection() & EPsToCsAllowed ) && iDomainType == ECallDomainTypePS ) |
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589 { |
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590 RUBY_DEBUG0( "VccHoTrigger::WlanSignalChanged - NotifySubscriberL" ); |
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591 |
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592 // First empty the key, so that director |
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593 // gets notified about all changes |
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594 |
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595 TRAP_IGNORE( iProperty->NotifySubscriberL( EVccNoRequestOngoing ) ); |
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596 // Check whether HO is allowed in multicall situation |
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597 if( iPolicy.DoHoInHeldWaitingCalls() ) |
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598 { |
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599 TRAP_IGNORE( iProperty->NotifySubscriberL( |
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600 EVccAutomaticStartPsToCsHoRequest ) ); |
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601 } |
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602 else |
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603 { |
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604 TRAP_IGNORE( iProperty->NotifySubscriberL( |
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605 EVccAutomaticStartPsToCsHoRequestIfSingleCall ) ); |
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606 } |
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607 |
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608 } |
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609 |
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610 else if ( iGsmClass == ESignalClassWeak && |
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611 iWlanClass == ESignalClassNormal && |
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612 ( iPolicy.AllowedDirection() & ECsToPsAllowed )) |
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613 { |
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614 RUBY_DEBUG0( "VccHoTrigger::GsmSignalChanged - NotifySubscriberL" ); |
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615 |
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616 // First empty the key, so that director |
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617 // gets notified about all changes |
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618 |
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619 TRAP_IGNORE( iProperty->NotifySubscriberL( EVccNoRequestOngoing ) ); |
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620 // Check whether HO is allowed in multicall situation |
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621 if( iPolicy.DoHoInHeldWaitingCalls() ) |
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622 { |
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623 TRAP_IGNORE( iProperty->NotifySubscriberL( |
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624 EVccAutomaticStartCsToPsHoRequest ) ); |
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625 } |
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626 else |
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627 { |
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628 TRAP_IGNORE( iProperty->NotifySubscriberL( |
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629 EVccAutomaticStartCsToPsHoRequestIfSingleCall ) ); |
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630 } |
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631 } |
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632 } |
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633 |
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634 // ----------------------------------------------------------------------------- |
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635 // Initiate immediate ho |
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636 // ----------------------------------------------------------------------------- |
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637 // |
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638 TBool CVccHoTrigger::DoImmediateHo() |
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639 { |
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640 RUBY_DEBUG_BLOCK( "CVccHoTrigger::DoImmediateHo" ); |
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641 TBool ret( EFalse ); |
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642 if( ( iPolicy.PreferredDomain() == ECsPreferred ) && |
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643 iGsmClass == ESignalClassNormal && |
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644 ( iPolicy.AllowedDirection() & EPsToCsAllowed ) ) |
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645 { |
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646 // Current call is PS, CS signal is ok, preferred domain is CS |
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647 // and immediate HO is requested -> HANDOVER to CS |
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648 |
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649 RUBY_DEBUG0( "VccHoTrigger::GsmSignalChanged - NotifySubscriberL ->\ |
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650 IMMEDIATE HO to CS" ); |
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651 |
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652 // First empty the key, so that director gets |
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653 // notified about all changes |
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654 |
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655 TRAP_IGNORE( iProperty->NotifySubscriberL( EVccNoRequestOngoing ) ); |
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656 |
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657 // Check whether HO is allowed in multicall situation |
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658 if( iPolicy.DoHoInHeldWaitingCalls() ) |
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659 { |
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660 TRAP_IGNORE( iProperty->NotifySubscriberL( |
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661 EVccAutomaticStartPsToCsHoRequest ) ); |
|
662 ret = ETrue; |
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663 } |
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664 else |
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665 { |
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666 TRAP_IGNORE( iProperty->NotifySubscriberL( |
|
667 EVccAutomaticStartPsToCsHoRequestIfSingleCall ) ); |
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668 ret = ETrue; |
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669 } |
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670 } |
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671 |
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672 else if ( (iPolicy.PreferredDomain() == EPsPreferred) && |
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673 iWlanClass == ESignalClassNormal && iCchServiceStatus != EServiceUnavailable && |
|
674 ( iPolicy.AllowedDirection() & ECsToPsAllowed ) && iDomainType != ECallDomainTypePS ) |
|
675 { |
|
676 // Current call is CS, PS signal is ok, preferred domain is PS and |
|
677 // immediate HO is requested -> HANDOVER to PS |
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678 |
|
679 RUBY_DEBUG0( "VccHoTrigger::WlanSignalChanged - NotifySubscriberL ->\ |
|
680 IMMEDIATE HO to PS" ); |
|
681 |
|
682 // First empty the key, so that director gets |
|
683 // notified about all changes |
|
684 |
|
685 TRAP_IGNORE( iProperty->NotifySubscriberL( EVccNoRequestOngoing ) ); |
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686 |
|
687 // Check whether HO is allowed in multicall situation |
|
688 if( iPolicy.DoHoInHeldWaitingCalls() ) |
|
689 { |
|
690 TRAP_IGNORE( iProperty->NotifySubscriberL( |
|
691 EVccAutomaticStartCsToPsHoRequest ) ); |
|
692 ret = ETrue; |
|
693 } |
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694 else |
|
695 { |
|
696 TRAP_IGNORE( iProperty->NotifySubscriberL( |
|
697 EVccAutomaticStartCsToPsHoRequestIfSingleCall ) ); |
|
698 ret = ETrue; |
|
699 } |
|
700 } |
|
701 return ret; |
|
702 } |