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1 /* |
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2 * Copyright (c) 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: AT NVRAM status change listener and notifier |
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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 "DunAtNvramListen.h" |
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20 #include "DunDebug.h" |
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21 |
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22 // --------------------------------------------------------------------------- |
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23 // Two-phased constructor. |
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24 // --------------------------------------------------------------------------- |
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25 // |
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26 CDunAtNvramListen* CDunAtNvramListen::NewL( RATExt* aAtCmdExt, |
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27 RATExtCommon* aAtCmdExtCommon ) |
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28 { |
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29 CDunAtNvramListen* self = NewLC( aAtCmdExt, aAtCmdExtCommon ); |
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30 CleanupStack::Pop( self ); |
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31 return self; |
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32 } |
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33 |
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34 // --------------------------------------------------------------------------- |
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35 // Two-phased constructor. |
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36 // --------------------------------------------------------------------------- |
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37 // |
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38 CDunAtNvramListen* CDunAtNvramListen::NewLC( RATExt* aAtCmdExt, |
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39 RATExtCommon* aAtCmdExtCommon ) |
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40 { |
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41 CDunAtNvramListen* self = new (ELeave) CDunAtNvramListen( |
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42 aAtCmdExt, |
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43 aAtCmdExtCommon ); |
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44 CleanupStack::PushL( self ); |
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45 self->ConstructL(); |
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46 return self; |
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47 } |
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48 |
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49 // --------------------------------------------------------------------------- |
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50 // Destructor. |
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51 // --------------------------------------------------------------------------- |
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52 // |
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53 CDunAtNvramListen::~CDunAtNvramListen() |
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54 { |
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55 FTRACE(FPrint( _L("CDunAtNvramListen::~CDunAtNvramListen()") )); |
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56 ResetData(); |
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57 FTRACE(FPrint( _L("CDunAtNvramListen::~CDunAtNvramListen() complete") )); |
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58 } |
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59 |
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60 // --------------------------------------------------------------------------- |
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61 // Resets data to initial values |
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62 // --------------------------------------------------------------------------- |
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63 // |
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64 void CDunAtNvramListen::ResetData() |
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65 { |
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66 FTRACE(FPrint( _L("CDunAtNvramListen::ResetData()") )); |
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67 // APIs affecting this: |
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68 // IssueRequest() |
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69 Stop(); |
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70 // Internal |
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71 Initialize(); |
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72 FTRACE(FPrint( _L("CDunAtNvramListen::ResetData() complete") )); |
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73 } |
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74 |
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75 // --------------------------------------------------------------------------- |
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76 // Starts waiting for NVRAM status changes |
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77 // --------------------------------------------------------------------------- |
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78 // |
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79 TInt CDunAtNvramListen::IssueRequest() |
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80 { |
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81 FTRACE(FPrint( _L("CDunAtNvramListen::IssueRequest()") )); |
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82 if ( iNvramHandleState != EDunStateIdle ) |
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83 { |
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84 FTRACE(FPrint( _L("CDunAtNvramListen::IssueRequest() (not ready) complete") )); |
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85 return KErrNotReady; |
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86 } |
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87 if ( !iStarted ) |
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88 { |
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89 iAtCmdExtCommon->GetNvramStatus( iNvramBuffer ); |
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90 iAtCmdExt->BroadcastNvramStatusChange( iNvramBuffer ); |
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91 iStarted = ETrue; |
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92 } |
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93 iStatus = KRequestPending; |
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94 iAtCmdExtCommon->ReceiveNvramStatusChange( iStatus, iNvramBuffer ); |
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95 SetActive(); |
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96 iNvramHandleState = EDunStateNvramListening; |
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97 FTRACE(FPrint( _L("CDunAtNvramListen::IssueRequest() complete") )); |
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98 return KErrNone; |
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99 } |
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100 |
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101 // --------------------------------------------------------------------------- |
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102 // Stops waiting for NVRAM status changes |
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103 // --------------------------------------------------------------------------- |
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104 // |
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105 TInt CDunAtNvramListen::Stop() |
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106 { |
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107 FTRACE(FPrint( _L("CDunAtNvramListen::Stop()") )); |
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108 if ( iNvramHandleState != EDunStateNvramListening ) |
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109 { |
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110 FTRACE(FPrint( _L("CDunAtNvramListen::Stop() (not ready) complete" ))); |
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111 return KErrNotReady; |
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112 } |
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113 iAtCmdExtCommon->CancelReceiveNvramStatusChange(); |
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114 Cancel(); |
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115 iNvramHandleState = EDunStateIdle; |
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116 FTRACE(FPrint( _L("CDunAtNvramListen::Stop() complete") )); |
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117 // Note: Don't mark iStarted to EFalse here! |
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118 return KErrNone; |
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119 } |
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120 |
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121 // --------------------------------------------------------------------------- |
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122 // CDunAtNvramListen::CDunAtNvramListen |
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123 // --------------------------------------------------------------------------- |
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124 // |
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125 CDunAtNvramListen::CDunAtNvramListen( RATExt* aAtCmdExt, |
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126 RATExtCommon* aAtCmdExtCommon ) : |
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127 CActive( EPriorityHigh ), |
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128 iAtCmdExt( aAtCmdExt ), |
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129 iAtCmdExtCommon( aAtCmdExtCommon ) |
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130 { |
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131 Initialize(); |
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132 } |
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133 |
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134 // --------------------------------------------------------------------------- |
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135 // CDunAtNvramListen::ConstructL |
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136 // --------------------------------------------------------------------------- |
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137 // |
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138 void CDunAtNvramListen::ConstructL() |
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139 { |
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140 FTRACE(FPrint( _L("CDunAtNvramListen::ConstructL()") )); |
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141 if ( !iAtCmdExt || !iAtCmdExtCommon ) |
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142 { |
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143 User::Leave( KErrGeneral ); |
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144 } |
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145 CActiveScheduler::Add( this ); |
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146 FTRACE(FPrint( _L("CDunAtNvramListen::ConstructL() complete") )); |
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147 } |
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148 |
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149 // --------------------------------------------------------------------------- |
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150 // Initializes this class |
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151 // --------------------------------------------------------------------------- |
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152 // |
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153 void CDunAtNvramListen::Initialize() |
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154 { |
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155 // Don't initialize iAtCmdExt here (it is set through NewL) |
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156 // Don't initialize iAtCmdExtCommon here (it is set through NewL) |
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157 iNvramHandleState = EDunStateIdle; |
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158 iStarted = EFalse; |
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159 } |
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160 |
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161 // --------------------------------------------------------------------------- |
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162 // From class CActive. |
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163 // Gets called when NVRAM has changed |
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164 // --------------------------------------------------------------------------- |
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165 // |
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166 void CDunAtNvramListen::RunL() |
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167 { |
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168 FTRACE(FPrint( _L("CDunAtNvramListen::RunL()") )); |
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169 iNvramHandleState = EDunStateIdle; |
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170 TInt retTemp = iStatus.Int(); |
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171 if ( retTemp != KErrNone ) |
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172 { |
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173 FTRACE(FPrint( _L("CDunAtNvramListen::RunL() (ERROR) complete (%d)"), retTemp )); |
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174 return; |
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175 } |
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176 iAtCmdExt->BroadcastNvramStatusChange( iNvramBuffer ); |
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177 IssueRequest(); |
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178 FTRACE(FPrint( _L("CDunAtNvramListen::RunL() complete") )); |
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179 } |
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180 |
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181 // --------------------------------------------------------------------------- |
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182 // From class CActive. |
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183 // Gets called on cancel |
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184 // --------------------------------------------------------------------------- |
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185 // |
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186 void CDunAtNvramListen::DoCancel() |
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187 { |
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188 FTRACE(FPrint( _L("CDunAtNvramListen::DoCancel()") )); |
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189 FTRACE(FPrint( _L("CDunAtNvramListen::DoCancel() complete") )); |
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190 } |