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1 /* |
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2 * Copyright (c) 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: Implementation of the GPS Watcher |
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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 // INCLUDE FILES |
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20 #include <e32base.h> |
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21 #include <e32svr.h> |
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22 |
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23 #include "GPSWatcher.h" |
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24 #include "GPSTimeUpdater.h" |
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25 #include "DRMClock.h" |
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26 #include "drmlog.h" |
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27 |
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28 |
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29 // ============================ MEMBER FUNCTIONS =============================== |
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30 |
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31 |
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32 // ----------------------------------------------------------------------------- |
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33 // CGPSWatcher::CGPSWatcher |
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34 // C++ default constructor can NOT contain any code, that |
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35 // might leave. |
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36 // ----------------------------------------------------------------------------- |
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37 // |
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38 CGPSWatcher::CGPSWatcher( CDRMClock* aClock ) : |
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39 CActive(EPriorityHigh), |
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40 iClock( aClock ) |
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41 { |
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42 CActiveScheduler::Add(this); |
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43 } |
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44 |
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45 // ----------------------------------------------------------------------------- |
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46 // CGPSWatcher::~CGPSWatcher |
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47 // C++ destructor |
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48 // ----------------------------------------------------------------------------- |
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49 // |
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50 CGPSWatcher::~CGPSWatcher() |
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51 { |
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52 Cancel(); |
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53 |
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54 delete iTimeUpdater; |
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55 iTimeUpdater = 0; |
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56 |
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57 iPosServer.Close(); |
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58 } |
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59 |
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60 // ----------------------------------------------------------------------------- |
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61 // CGPSWatcher::NewL |
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62 // Two-phased constructor |
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63 // ----------------------------------------------------------------------------- |
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64 // |
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65 CGPSWatcher* CGPSWatcher::NewL( CDRMClock* aClock ) |
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66 { |
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67 CGPSWatcher* self = new (ELeave) CGPSWatcher( aClock ); |
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68 |
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69 CleanupStack::PushL(self); |
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70 self->ConstructL(); |
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71 CleanupStack::Pop(self); |
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72 |
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73 return self; |
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74 } |
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75 |
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76 // ----------------------------------------------------------------------------- |
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77 // CGPSWatcher::ConstructL |
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78 // Symbian 2nd phase constructor can leave. |
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79 // ----------------------------------------------------------------------------- |
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80 // |
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81 void CGPSWatcher::ConstructL() |
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82 { |
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83 User::LeaveIfError(iPosServer.Connect()); |
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84 |
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85 // Immediately subscribe for module status events |
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86 iStatusEvent.SetRequestedEvents(TPositionModuleStatusEventBase::EEventDeviceStatus); |
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87 Subscribe(); |
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88 |
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89 // Check initial state |
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90 CheckModules(); |
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91 } |
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92 |
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93 // ----------------------------------------------------------------------------- |
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94 // CGPSWatcher::Subscribe |
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95 // Subscribe to position events |
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96 // ----------------------------------------------------------------------------- |
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97 // |
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98 void CGPSWatcher::Subscribe() |
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99 { |
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100 iPosServer.NotifyModuleStatusEvent(iStatusEvent, iStatus); |
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101 SetActive(); |
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102 } |
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103 |
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104 // ----------------------------------------------------------------------------- |
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105 // CGPSWatcher::RunL |
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106 // Inherited from CActive |
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107 // ----------------------------------------------------------------------------- |
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108 // |
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109 void CGPSWatcher::RunL() |
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110 { |
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111 // If we already updated the time: |
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112 if( iTimeUpdater && iTimeUpdater->TimeReceived() ) |
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113 { |
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114 DRMLOG( _L("CGPSWatcher::RunL: time updater exists, time received, deleting")); |
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115 iClock->Notify( CDRMClock::ENotifyGPSTimeReceived ); |
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116 DRMLOG( _L("CGPSWatcher::RunL: object deleted, returning")); |
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117 return; |
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118 } |
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119 |
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120 Subscribe(); |
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121 TPositionModuleStatusEventBase::TModuleEvent occurredEvents = iStatusEvent.OccurredEvents(); |
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122 DRMLOG2(_L("CGPSWatcher::RunL: occurredEvents = 0x%X"), occurredEvents); |
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123 |
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124 // If time updater is not running, check module statuses |
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125 if(!iTimeUpdater) |
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126 CheckModules(); |
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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 // CGPSWatcher::DoCancel |
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132 // Inherited from CActive |
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133 // ----------------------------------------------------------------------------- |
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134 // |
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135 void CGPSWatcher::DoCancel() |
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136 { |
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137 iPosServer.CancelRequest(EPositionServerNotifyModuleStatusEvent); |
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138 } |
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139 |
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140 // ----------------------------------------------------------------------------- |
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141 // CGPSWatcher::RunError |
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142 // Inherited from CActive |
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143 // ----------------------------------------------------------------------------- |
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144 // |
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145 TInt CGPSWatcher::RunError( TInt /*aError*/ ) |
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146 { |
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147 // ignore errors |
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148 return KErrNone; |
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149 } |
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150 |
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151 // ----------------------------------------------------------------------------- |
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152 // CGPSWatcher::CheckModules |
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153 // Check what modules are present and act accordingly |
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154 // ----------------------------------------------------------------------------- |
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155 // |
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156 void CGPSWatcher::CheckModules() |
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157 { |
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158 // Get number of modules |
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159 TUint numModules; |
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160 if(iPosServer.GetNumModules(numModules)!=KErrNone || !numModules) |
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161 return; |
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162 |
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163 // Collect all active and satellite capable modules |
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164 TFullName moduleName; |
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165 RPointerArray<TPositionModuleInfo> satelliteModules; |
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166 |
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167 TPositionModuleInfo *moduleInfo(0); |
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168 |
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169 for(TUint i=0; i<numModules; i++) |
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170 { |
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171 if(!moduleInfo) |
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172 { |
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173 moduleInfo = new TPositionModuleInfo; |
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174 if(!moduleInfo) |
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175 { |
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176 continue; |
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177 } |
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178 } |
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179 |
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180 // Get module info from the server |
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181 if(iPosServer.GetModuleInfoByIndex(i, *moduleInfo) != KErrNone) |
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182 { |
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183 continue; |
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184 } |
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185 |
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186 // Check if the module is internal and satellite capable |
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187 if(! (moduleInfo->DeviceLocation() & TPositionModuleInfo::EDeviceInternal) || |
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188 ! (moduleInfo->Capabilities() & TPositionModuleInfo::ECapabilitySatellite) ) |
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189 { |
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190 // Not internal or satellite capable |
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191 continue; |
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192 } |
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193 |
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194 // Get module status |
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195 TPositionModuleStatus moduleStatus; |
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196 if(iPosServer.GetModuleStatus(moduleStatus, moduleInfo->ModuleId()) != KErrNone) |
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197 { |
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198 continue; |
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199 } |
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200 // Check if the module is active |
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201 if(moduleStatus.DeviceStatus() != TPositionModuleStatus::EDeviceActive) |
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202 { |
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203 continue; |
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204 } |
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205 |
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206 moduleInfo->GetModuleName(moduleName); |
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207 |
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208 DRMLOG6( _L("Module %d: id=0x%08X, name = %S, cap=0x%08X, status=%d"), i, moduleInfo->ModuleId().iUid, &moduleName, moduleInfo->Capabilities(), moduleStatus.DeviceStatus()); |
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209 |
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210 // Active internal satellite device, try to append in the array |
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211 if(satelliteModules.Append(moduleInfo) == KErrNone) |
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212 { |
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213 moduleInfo = 0; |
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214 } |
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215 } |
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216 |
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217 delete moduleInfo; |
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218 |
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219 if(satelliteModules.Count()) |
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220 { |
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221 DRMLOG( _L("Active satellite module available") ); |
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222 // We have an active satellite module available |
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223 TPositionModuleId moduleId = satelliteModules[0]->ModuleId(); |
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224 |
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225 // Just allocating/deleting the time updater will do the trick |
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226 iTimeUpdater = CGPSTimeUpdater::New(iPosServer, moduleId, iClock); |
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227 } |
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228 else |
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229 { |
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230 DRMLOG( _L("No active satellite modules available") ); |
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231 // Delete time updater since no active GPS anymore |
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232 delete iTimeUpdater; iTimeUpdater = 0; |
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233 } |
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234 |
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235 satelliteModules.ResetAndDestroy(); |
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236 satelliteModules.Close(); |
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237 } |