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1 /* |
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2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: Bluetooth Engine server state machine class implementation. |
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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 <ecom/ecomresolverparams.h> |
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21 |
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22 #include "btengsrvstate.h" |
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23 #include "btengserver.h" |
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24 #include "btengsrvpluginmgr.h" |
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25 #include "debug.h" |
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26 |
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27 |
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28 // ======== MEMBER FUNCTIONS ======== |
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29 |
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30 // --------------------------------------------------------------------------- |
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31 // C++ default constructor |
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32 // --------------------------------------------------------------------------- |
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33 // |
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34 CBTEngSrvState::CBTEngSrvState( CBTEngServer* aServer ) |
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35 : iState( EInit ), |
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36 iOperation( ESrvOpIdle ), |
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37 iServer( aServer ) |
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38 { |
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39 } |
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40 |
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41 |
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42 // --------------------------------------------------------------------------- |
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43 // Symbian 2nd-phase constructor |
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44 // --------------------------------------------------------------------------- |
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45 // |
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46 void CBTEngSrvState::ConstructL() |
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47 { |
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48 TRACE_FUNC_ENTRY |
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49 // Create the active object handling asynchronous state transitions. |
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50 // The state transitions need to be done fast, as it can be initiated |
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51 // through user interaction (i.e. the user is waiting). |
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52 const TCallBack cb(&ChangeStateCb, this); |
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53 iAsyncCallback = new(ELeave) CAsyncCallBack(cb, CActive::EPriorityHigh); |
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54 TRACE_FUNC_EXIT |
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55 } |
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56 |
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57 |
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58 // --------------------------------------------------------------------------- |
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59 // NewL |
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60 // --------------------------------------------------------------------------- |
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61 // |
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62 CBTEngSrvState* CBTEngSrvState::NewL( CBTEngServer* aServer ) |
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63 { |
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64 CBTEngSrvState* self = new( ELeave ) CBTEngSrvState( aServer ); |
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65 CleanupStack::PushL( self ); |
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66 self->ConstructL(); |
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67 CleanupStack::Pop( self ); |
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68 return self; |
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69 } |
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70 |
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71 |
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72 // --------------------------------------------------------------------------- |
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73 // Destructor |
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74 // --------------------------------------------------------------------------- |
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75 // |
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76 CBTEngSrvState::~CBTEngSrvState() |
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77 { |
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78 delete iAsyncCallback; |
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79 } |
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80 |
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81 |
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82 // --------------------------------------------------------------------------- |
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83 // Returns the current state machine operation. |
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84 // --------------------------------------------------------------------------- |
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85 // |
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86 CBTEngSrvState::TBTEngSrvOperation CBTEngSrvState::CurrentOperation() |
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87 { |
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88 return iOperation; |
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89 } |
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90 |
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91 |
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92 // --------------------------------------------------------------------------- |
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93 // ?implementation_description |
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94 // --------------------------------------------------------------------------- |
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95 // |
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96 void CBTEngSrvState::StartStateMachineL( TBool aState ) |
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97 { |
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98 TRACE_FUNC_ENTRY |
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99 if( aState ) |
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100 { |
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101 // Power on; starting state is initializing the stack |
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102 iState = EInitBTStack; |
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103 iOperation = EPowerOn; |
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104 } |
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105 else |
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106 { |
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107 // Power off, starting state is to disconnect the plug-ins |
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108 iState = EDisconnectPlugins; |
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109 iOperation = EPowerOff; |
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110 iServer->UpdateCenRepPowerKeyL( EBTPowerOff ); |
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111 iServer->SetUiIndicatorsL(); |
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112 } |
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113 ChangeState(); |
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114 } |
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115 |
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116 |
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117 // --------------------------------------------------------------------------- |
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118 // ?implementation_description |
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119 // --------------------------------------------------------------------------- |
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120 // |
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121 void CBTEngSrvState::ChangeState() |
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122 { |
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123 TRACE_FUNC_ENTRY |
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124 if(!iAsyncCallback->IsActive()) |
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125 { |
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126 iAsyncCallback->CallBack(); |
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127 } |
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128 } |
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129 |
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130 // --------------------------------------------------------------------------- |
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131 // ?implementation_description |
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132 // --------------------------------------------------------------------------- |
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133 // |
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134 TInt CBTEngSrvState::ChangeStateCb(TAny* aThis) |
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135 { |
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136 TRAPD(err, static_cast<CBTEngSrvState*>(aThis)->RequestCompletedL()); |
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137 if(err != KErrNone) |
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138 { |
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139 static_cast<CBTEngSrvState*>(aThis)->HandleError(err); |
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140 } |
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141 return KErrNone; |
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142 } |
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143 |
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144 // --------------------------------------------------------------------------- |
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145 // From class MBTEngActiveObserver. |
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146 // ?implementation_description |
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147 // --------------------------------------------------------------------------- |
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148 // |
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149 void CBTEngSrvState::RequestCompletedL() |
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150 { |
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151 switch( iState ) |
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152 { |
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153 case EInitBTStack: |
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154 { |
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155 iState = ELoadDIService; |
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156 iServer->InitBTStackL(); |
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157 } |
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158 break; |
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159 case ELoadDIService: |
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160 { |
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161 iState = ELoadPlugins; |
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162 iServer->ManageDIServiceL( ETrue ); |
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163 } |
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164 break; |
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165 case ELoadPlugins: |
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166 { |
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167 iState = ELoadNextPlugin; |
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168 TEComResolverParams params; |
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169 iServer->iPluginMgr->LoadProfilePluginsL( params ); |
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170 } |
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171 break; |
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172 case ELoadNextPlugin: |
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173 { |
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174 // Only change the state when all plug-ins are loaded |
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175 if( iServer->iPluginMgr->LoadPluginL() <= 0 ) |
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176 { |
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177 iState = EIdle; |
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178 } |
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179 } |
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180 break; |
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181 case EStopBTStack: |
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182 { |
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183 iState = EWaitingForPowerOff; |
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184 iServer->StopBTStackL(); |
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185 } |
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186 break; |
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187 case EUnloadDIService: |
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188 { |
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189 iState = EStopBTStack; |
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190 iServer->ManageDIServiceL( EFalse ); |
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191 } |
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192 break; |
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193 case EUnloadPlugins: |
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194 { |
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195 iState = EUnloadDIService; |
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196 iServer->iPluginMgr->UnloadProfilePlugins(); |
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197 } |
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198 break; |
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199 case EDisconnectPlugins: |
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200 { |
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201 iState = EUnloadPlugins; |
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202 // This is the starting state; the disconnect command has |
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203 // already been sent. Just one more loop to give more time |
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204 // for disconnecting. |
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205 } |
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206 break; |
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207 case EWaitingForPowerOff: |
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208 { |
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209 // Disconnecting all connections completed and |
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210 // called us back; we are done. |
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211 iState = EIdle; |
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212 } // Fall through |
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213 case EIdle: |
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214 { |
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215 if( iOperation == EPowerOn ) |
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216 { |
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217 iServer->UpdateCenRepPowerKeyL( EBTPowerOn ); |
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218 iServer->SetUiIndicatorsL(); |
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219 } |
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220 iOperation = ESrvOpIdle; |
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221 iServer->CheckIdle(); |
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222 } |
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223 case EInit: |
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224 default: |
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225 break; |
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226 } |
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227 // In state EWaitingForPowerOff, we change the state |
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228 // through a callback in the server. |
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229 if( iOperation != ESrvOpIdle && iState != EWaitingForPowerOff ) |
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230 { |
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231 ChangeState(); |
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232 } |
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233 TRACE_FUNC_EXIT |
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234 } |
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235 |
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236 |
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237 // --------------------------------------------------------------------------- |
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238 // From class MBTEngActiveObserver. |
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239 // Handles a leave in RunL/RequestCompletedL. |
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240 // --------------------------------------------------------------------------- |
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241 // |
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242 void CBTEngSrvState::HandleError(TInt aError) |
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243 { |
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244 TRACE_FUNC_ARG( ( _L( "error: %d" ), aError ) ) |
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245 |
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246 (void) aError; |
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247 // All critical operations are done in turning power on; all other |
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248 // operations are recoverable i.e. we can do without loading/unloading |
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249 // of services. So simply change the state to handle next state change. |
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250 ChangeState(); |
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251 } |