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1 // Copyright (c) 2003-2009 Nokia Corporation and/or its subsidiary(-ies). |
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2 // All rights reserved. |
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3 // This component and the accompanying materials are made available |
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4 // under the terms of the License "Eclipse Public License v1.0" |
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5 // which accompanies this distribution, and is available |
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6 // at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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7 // |
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8 // Initial Contributors: |
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9 // Nokia Corporation - initial contribution. |
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10 // |
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11 // Contributors: |
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12 // |
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13 // Description: |
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14 // Tests erasing of Flash while forcing suspend-resume cycles |
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15 // This is a soak-test version that runs continously |
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16 // This test is similar to TF_SUSPENDSOAK except that it uses |
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17 // writes to interrupt the erase instead of reads. |
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18 // |
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19 // |
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20 |
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21 #include <e32std.h> |
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22 #include <e32std_private.h> |
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23 #include <e32svr.h> |
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24 #include <e32test.h> |
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25 #include "randgen.h" |
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26 #include "user_config.h" |
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27 |
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28 RTest test( _L("TF_SUSPENDSOAKW") ); |
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29 |
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30 |
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31 |
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32 |
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33 class CEraser |
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34 { |
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35 public: |
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36 enum TFunction |
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37 { |
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38 EIdle, |
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39 EEraseBlock |
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40 }; |
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41 |
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42 public: |
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43 ~CEraser(); |
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44 void CreateL(); |
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45 void Stop(); |
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46 void WaitForReady(); |
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47 inline TBool CheckDone() const |
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48 { |
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49 return (EIdle == iRequestedFunction); |
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50 } |
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51 |
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52 inline void WaitForDone() |
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53 { |
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54 WaitForReady(); |
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55 iWaitingSignal.Signal(); // resignal, ready for next Start() |
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56 }; |
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57 |
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58 void EraseBlock( TUint32 aOffset, TUint aLength ); |
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59 |
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60 private: |
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61 void Panic( TInt aPanicNum ); |
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62 void Start( TFunction aFunction ); |
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63 |
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64 static TInt EraserThread( TAny* aParam ); |
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65 |
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66 void DoEraseBlock(); |
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67 |
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68 private: |
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69 RThread iThread; |
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70 |
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71 // |
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72 // Shared between main & eraser thread |
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73 // |
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74 TFunction iRequestedFunction; |
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75 RSemaphore iGoSignal; |
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76 RSemaphore iWaitingSignal; |
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77 TBool iStop; |
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78 |
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79 // |
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80 // These are local to the eraser thread |
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81 // |
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82 TUint iOffset; |
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83 TUint iLength; |
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84 TBusLocalDrive iDrive; |
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85 }; |
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86 |
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87 |
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88 |
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89 CEraser::~CEraser() |
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90 { |
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91 iThread.Terminate( KErrNone ); |
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92 iThread.Close(); |
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93 iGoSignal.Close(); |
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94 iWaitingSignal.Close(); |
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95 } |
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96 |
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97 void CEraser::Panic( TInt aPanicNum ) |
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98 { |
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99 _LIT( KPanicCat, "ERASE-T" ); |
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100 User::Panic( KPanicCat, aPanicNum ); |
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101 RProcess().Panic( KPanicCat, aPanicNum ); |
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102 } |
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103 |
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104 |
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105 void CEraser::CreateL() |
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106 // |
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107 // Create new thread and wait for it to become ready |
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108 // |
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109 { |
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110 iGoSignal.CreateLocal( 0 ); // initially blocked |
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111 iWaitingSignal.CreateLocal( 0 ); // initially blocked |
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112 iStop = EFalse; |
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113 User::LeaveIfError( iThread.Create( _L("ERASER"), EraserThread, 2048, 2048, 65536, this ) ); |
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114 test.Printf( _L("Eraser thread created\n") ); |
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115 |
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116 iThread.Resume(); |
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117 |
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118 test.Printf( _L("Waiting for thread to become ready\n") ); |
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119 WaitForReady(); |
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120 iWaitingSignal.Signal(); |
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121 } |
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122 |
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123 void CEraser::Start( TFunction aFunction ) |
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124 // |
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125 // Start the suspender thread executing function aFunction |
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126 // |
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127 { |
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128 iStop = EFalse; |
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129 WaitForReady(); |
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130 iRequestedFunction = aFunction; |
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131 iGoSignal.Signal(); |
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132 } |
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133 |
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134 void CEraser::Stop() |
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135 // |
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136 // Stop the thread |
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137 // |
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138 { |
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139 iStop = ETrue; |
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140 } |
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141 |
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142 void CEraser::WaitForReady() |
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143 { |
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144 iWaitingSignal.Wait(); |
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145 } |
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146 |
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147 void CEraser::EraseBlock( TUint32 aOffset, TUint aLength ) |
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148 { |
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149 iOffset = aOffset; |
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150 iLength = aLength; |
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151 Start( EEraseBlock ); |
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152 } |
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153 |
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154 |
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155 TInt CEraser::EraserThread( TAny* aParam ) |
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156 // |
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157 // The thread which executes suspend functions |
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158 // |
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159 { |
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160 RDebug::Print( _L("Eraser thread starts") ); |
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161 |
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162 CEraser& self = *reinterpret_cast<CEraser*>(aParam); |
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163 |
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164 // |
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165 // Open our own TBusLogicalDevice channel |
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166 // |
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167 TBool changedFlag; |
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168 if( KErrNone != self.iDrive.Connect( KDriveNumber, changedFlag ) ) |
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169 { |
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170 self.Panic( 1 ); |
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171 } |
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172 |
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173 RDebug::Print( _L("Eraser thread connected to drive") ); |
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174 |
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175 while( !self.iStop ) |
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176 { |
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177 // |
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178 // Signal that we are ready for a request |
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179 // |
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180 _LIT( KWaitMsg, "Eraser thread waiting..." ); |
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181 RDebug::Print( KWaitMsg ); |
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182 self.iWaitingSignal.Signal(); |
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183 |
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184 // |
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185 // Wait for a request |
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186 // |
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187 self.iGoSignal.Wait(); |
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188 _LIT( KGoMsg, "Eraser thread go (%d)" ); |
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189 RDebug::Print( KGoMsg, self.iRequestedFunction ); |
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190 |
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191 switch( self.iRequestedFunction ) |
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192 { |
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193 case EEraseBlock: |
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194 self.DoEraseBlock(); |
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195 break; |
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196 |
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197 case EIdle: |
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198 default: |
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199 self.Panic( 0 ); |
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200 } |
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201 |
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202 self.iRequestedFunction = EIdle; |
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203 } |
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204 |
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205 self.iDrive.Disconnect(); |
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206 return KErrNone; |
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207 } |
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208 |
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209 void CEraser::DoEraseBlock() |
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210 // |
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211 // Issue an erase |
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212 // |
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213 { |
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214 _LIT( KEraseStartMsg, "Eraser starting erase..." ); |
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215 RDebug::Print( KEraseStartMsg ); |
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216 |
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217 TInt r = iDrive.Format( TInt64(iOffset), iLength ); |
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218 |
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219 if( KErrNone != r ) |
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220 { |
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221 RDebug::Print( _L("Eraser: FAIL: erase request returns %d"), r ); |
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222 Panic( 2 ); |
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223 } |
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224 } |
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225 |
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226 |
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227 |
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228 class CSuspendTest : public CBase |
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229 { |
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230 public: |
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231 ~CSuspendTest(); |
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232 |
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233 void CreateL(); |
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234 |
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235 void DoTest(); |
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236 |
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237 private: |
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238 |
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239 TInt EraseOneBlock( TInt aBlockNumber ); |
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240 TInt ZeroFillBlock( TInt aBlockNumber ); |
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241 TBool ValidateBlock( TInt aBlockNumber, TUint32 aFillWord ); |
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242 TInt ZeroAllBlocks(); |
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243 TBool ValidateAllBlocks( TUint32 aFillWord ); |
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244 void TimeSinceStart() const; |
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245 |
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246 void DoRandomWriteSoak(); |
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247 |
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248 private: |
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249 TBusLocalDrive iDrive; |
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250 TBool iDriveOpened; |
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251 |
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252 CEraser* iEraser; |
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253 |
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254 TInt iFlashSize; |
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255 TInt iBlockSize; |
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256 TInt iBlockCount; |
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257 |
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258 TTime iStartTime; |
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259 |
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260 TBuf8<512> iReadBuffer; |
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261 }; |
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262 |
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263 |
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264 CSuspendTest::~CSuspendTest() |
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265 { |
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266 if( iDriveOpened ) |
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267 { |
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268 iDrive.Disconnect(); |
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269 } |
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270 |
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271 delete iEraser; |
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272 } |
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273 |
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274 |
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275 |
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276 void CSuspendTest::CreateL() |
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277 { |
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278 // |
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279 // Create the eraser thread |
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280 // |
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281 iEraser = new(ELeave) CEraser; |
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282 iEraser->CreateL(); |
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283 |
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284 // |
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285 // Load the device drivers |
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286 // |
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287 TInt r; |
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288 #ifndef SKIP_PDD_LOAD |
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289 test.Printf( _L("Loading %S\n"), &KLfsDriverName ); |
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290 r = User::LoadPhysicalDevice( KLfsDriverName ); |
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291 test( KErrNone == r || KErrAlreadyExists == r ); |
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292 #endif |
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293 |
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294 #ifdef UNMOUNT_DRIVE |
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295 RFs fs; |
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296 test( KErrNone == fs.Connect() ); |
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297 test( KErrNone == fs.SetSessionPath( _L("Z:\\") ) ); |
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298 TFullName name; |
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299 fs.FileSystemName( name, KLffsLogicalDriveNumber ); |
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300 if( name.Length() > 0 ) |
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301 { |
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302 test.Printf( _L("Unmounting drive") ); |
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303 test( KErrNone == fs.DismountFileSystem( _L("Lffs"), KLffsLogicalDriveNumber) ); |
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304 User::After( 2000000 ); |
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305 test.Printf( _L("Drive unmounted") ); |
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306 } |
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307 fs.Close(); |
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308 #endif |
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309 |
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310 // |
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311 // Open a TBusLogicalDevice to it |
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312 // |
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313 test.Printf( _L("Opening media channel\n") ); |
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314 TBool changedFlag = EFalse; |
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315 r = iDrive.Connect( KDriveNumber, changedFlag ); |
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316 User::LeaveIfError( r ); |
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317 iDriveOpened = ETrue; |
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318 |
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319 // |
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320 // Get size of Flash drive, block size, block count |
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321 // |
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322 TLocalDriveCapsV2Buf info; |
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323 iDrive.Caps(info); |
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324 iFlashSize = I64LOW(info().iSize); |
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325 iBlockSize = info().iEraseBlockSize; |
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326 iBlockCount = iFlashSize / iBlockSize; |
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327 |
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328 test.Printf( _L("Flash size is 0x%x bytes\n"), iFlashSize ); |
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329 test.Printf( _L("Block size is 0x%x bytes\n"), iBlockSize ); |
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330 test.Printf( _L("Block count is %d\n"), iBlockCount ); |
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331 |
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332 test.Printf( _L("CreateL complete\n") ); |
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333 } |
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334 |
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335 |
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336 void CSuspendTest::DoTest() |
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337 // |
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338 // Main test dispatcher |
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339 // |
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340 { |
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341 DoRandomWriteSoak(); |
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342 } |
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343 |
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344 |
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345 TInt CSuspendTest::EraseOneBlock( TInt aBlockNumber ) |
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346 // |
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347 // Erases block aBlockNumber on Flash |
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348 // |
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349 { |
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350 TInt blockBaseOffset = aBlockNumber * iBlockSize; |
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351 |
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352 test.Printf( _L("Erasing block %d (offs=0x%x)\n"), aBlockNumber, blockBaseOffset ); |
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353 |
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354 TInt r = iDrive.Format( blockBaseOffset, iBlockSize ); |
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355 |
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356 test.Printf( _L("... block erased, rv=%d\n"), r ); |
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357 return r; |
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358 } |
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359 |
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360 |
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361 TBool CSuspendTest::ValidateBlock( TInt aBlockNumber, TUint32 aFillWord ) |
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362 // |
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363 // Checks that every word in block aBlockNumber has the value aFillWord |
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364 // |
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365 { |
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366 TUint offset = aBlockNumber * iBlockSize; |
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367 test.Printf( _L("Validating block %d (offs=0x%x)\n"), aBlockNumber, offset ); |
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368 |
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369 TBool failed = EFalse; |
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370 const TInt readBufLen = iReadBuffer.MaxLength(); |
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371 |
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372 for( TInt len = iBlockSize; len > 0 && !failed ;) |
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373 { |
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374 TInt r = iDrive.Read( offset, readBufLen, iReadBuffer ); |
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375 if( r != KErrNone ) |
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376 { |
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377 test.Printf( _L("... FAIL: read failed (%d) at offset 0x%x\n"), r, offset ); |
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378 test( KErrNone == r ); |
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379 } |
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380 test( iReadBuffer.Length() == readBufLen ); |
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381 |
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382 TUint32* p = (TUint32*)iReadBuffer.Ptr(); |
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383 for( TInt i = 0; i < readBufLen; i += 4 ) |
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384 { |
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385 if( aFillWord != *p ) |
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386 { |
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387 failed = ETrue; |
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388 test.Printf( _L("... FAILED: word @ offs=0x%x, read=0x%x, expected=0x%x\n"), |
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389 offset+i, p[0], aFillWord ); |
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390 break; |
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391 } |
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392 ++p; |
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393 } |
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394 offset += readBufLen; |
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395 len -= readBufLen; |
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396 } |
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397 |
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398 return !failed; |
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399 } |
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400 |
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401 |
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402 TInt CSuspendTest::ZeroFillBlock( TInt aBlockNumber ) |
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403 // |
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404 // Zero-fills and entire block |
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405 // The requires that writing works |
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406 // |
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407 { |
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408 test.Printf( _L("Zero-filling block %d\n"), aBlockNumber ); |
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409 |
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410 // |
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411 // Create a buffer full of zeros |
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412 // |
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413 const TInt KZeroBufSize = 512; |
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414 |
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415 TBuf8<KZeroBufSize> buf; |
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416 buf.FillZ( buf.MaxLength() ); |
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417 |
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418 // |
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419 // Write the data out to the Flash |
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420 // |
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421 TInt writeCount = iBlockSize / KZeroBufSize; |
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422 TInt r = KErrNone; |
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423 TUint blockBaseOffset = aBlockNumber * iBlockSize; |
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424 TInt pos = blockBaseOffset; |
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425 for( ; (writeCount > 0) && (KErrNone == r); writeCount-- ) |
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426 { |
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427 r = iDrive.Write( pos, buf ); |
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428 if( r != KErrNone ) |
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429 { |
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430 test.Printf( _L("... FAIL: write failed (%d) at offset 0x%x\n"), pos ); |
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431 } |
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432 pos += KZeroBufSize; |
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433 } |
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434 |
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435 return r; |
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436 } |
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437 |
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438 |
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439 TInt CSuspendTest::ZeroAllBlocks() |
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440 // |
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441 // Writes zeros to all blocks |
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442 // |
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443 { |
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444 test.Printf( _L("Zeroing all blocks\n") ); |
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445 |
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446 TInt r = KErrNone; |
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447 for( TInt i = 0; (i < iBlockCount) && (KErrNone == r); i++ ) |
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448 { |
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449 r = ZeroFillBlock( i ); |
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450 } |
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451 |
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452 return r; |
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453 } |
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454 |
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455 TBool CSuspendTest::ValidateAllBlocks( TUint32 aFillWord ) |
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456 // |
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457 // Checks that all blocks contain aFillWord |
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458 // |
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459 { |
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460 test.Printf( _L("Validating all blocks\n") ); |
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461 |
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462 TBool failed = EFalse; |
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463 for( TInt i = 0; (i < iBlockCount) && (!failed); i++ ) |
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464 { |
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465 failed = !ValidateBlock( i, aFillWord ); |
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466 } |
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467 |
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468 return !failed; |
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469 } |
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470 |
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471 |
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472 void CSuspendTest::TimeSinceStart() const |
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473 { |
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474 TTimeIntervalSeconds timeTaken; |
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475 TTime time; |
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476 time.HomeTime(); |
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477 TInt r = time.SecondsFrom(iStartTime, timeTaken); |
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478 test(r == KErrNone); |
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479 TInt totalTime = timeTaken.Int(); |
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480 |
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481 TInt seconds = totalTime % 60; |
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482 TInt minutes = (totalTime / 60) % 60; |
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483 TInt hours = totalTime / 3600; |
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484 |
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485 test.Printf( _L("Time since test started = %d:%d:%d\n"), hours, minutes, seconds ); |
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486 } |
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487 |
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488 |
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489 |
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490 void CSuspendTest::DoRandomWriteSoak() |
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491 // |
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492 // For each block issues an erase and then |
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493 // starts issuing write requests. The intervals |
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494 // between write requests are derived from the |
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495 // pseudo-random number generator. |
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496 // Each block is checked after is has been erased |
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497 // |
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498 // The same data is written each time. This data is |
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499 // also generated from the random number generator. After |
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500 // each erase the data is read back to check that it is |
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501 // correct. |
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502 // |
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503 { |
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504 test.Next( _L("Erase suspend soak test using random writes") ); |
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505 |
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506 TRandomGenerator random; |
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507 random.SetSeed( 0x13E00103 ); |
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508 |
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509 test.Printf( _L("Preparing buffer") ); |
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510 TBuf8<20> writeBuf; |
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511 writeBuf.SetLength( writeBuf.MaxLength() ); |
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512 for( TInt i = writeBuf.Length(); i > 0;) |
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513 { |
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514 --i; |
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515 writeBuf[i] = static_cast<TUint8>( random.Next() ); |
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516 } |
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517 |
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518 test.Printf( _L("Starting test") ); |
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519 random.SetSeed( MAKE_TINT64( 0xA05BE111,0x00101111 ) ); |
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520 iStartTime.HomeTime(); |
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521 |
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522 // |
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523 // We repeat the test for each block, erasing block n and reading from |
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524 // block (n+1) modulo iBlockCount |
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525 // |
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526 |
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527 // |
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528 // Writes are always done to the block that we just erased. This |
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529 // TBool prevents us starting writes until we have erased a block. |
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530 // |
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531 TBool firstErase = ETrue; |
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532 for(;;) |
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533 { |
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534 TimeSinceStart(); |
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535 |
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536 for( TInt eraseBlock = 0; eraseBlock < iBlockCount; eraseBlock++ ) |
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537 { |
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538 TUint32 writeBlock = eraseBlock - 1; |
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539 if( 0 == eraseBlock ) |
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540 { |
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541 writeBlock = iBlockCount - 1; |
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542 } |
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543 |
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544 TUint32 erasePos = eraseBlock * iBlockSize; |
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545 TInt writePos = writeBlock * iBlockSize; |
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546 |
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547 test.Printf( _L("Erasing block %d, writing to block %d"), |
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548 eraseBlock, writeBlock ); |
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549 |
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550 // |
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551 // Zero the block we are about to erase |
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552 // |
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553 test( KErrNone == ZeroFillBlock( eraseBlock ) ); |
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554 test( ValidateBlock( eraseBlock, 0 ) ); |
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555 |
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556 // |
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557 // Start the erase |
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558 // |
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559 _LIT( KEraseNotify, "Main thread starting erase\n" ); |
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560 test.Printf( KEraseNotify ); |
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561 iEraser->EraseBlock( erasePos, iBlockSize ); |
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562 |
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563 // |
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564 // Now we loop, waiting for random intervals, issuing |
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565 // writes, until the erase completes |
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566 // |
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567 |
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568 TBool didWrite = EFalse; |
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569 while( !iEraser->CheckDone() ) |
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570 { |
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571 // |
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572 // Get a pseudo-random interval between 0 and 524.288 milliseconds |
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573 // |
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574 TInt delayInMicroseconds = random.Next() % 0x80000; |
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575 User::After( delayInMicroseconds ); |
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576 |
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577 if( !firstErase ) |
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578 { |
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579 test( KErrNone == iDrive.Write( writePos, writeBuf ) ); |
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580 _LIT( KWriteNotify, "Done write" ); |
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581 test.Printf( KWriteNotify ); |
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582 didWrite = ETrue; |
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583 } |
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584 } |
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585 |
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586 // |
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587 // Now check that the block was erased |
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588 // |
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589 test( ValidateBlock( eraseBlock, 0xFFFFFFFF ) ); |
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590 firstErase = EFalse; |
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591 |
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592 // |
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593 // Also check that the data written to the Flash is correct. |
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594 // |
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595 if( didWrite ) |
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596 { |
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597 TBuf8<20> readBuf; |
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598 test( KErrNone == iDrive.Read( writePos, writeBuf.Length(), readBuf ) ); |
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599 test( readBuf == writeBuf ); |
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600 test.Printf( _L("Write data is ok") ); |
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601 } |
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602 } |
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603 } |
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604 } |
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605 |
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606 |
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607 |
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608 |
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609 void E32Main() |
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610 { |
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611 test.Title(); |
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612 test.Start(_L("Testing media erase+suspend operations")); |
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613 |
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614 CSuspendTest suspendTest; |
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615 TRAPD( ret, suspendTest.CreateL() ); |
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616 if( KErrNone == ret ) |
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617 { |
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618 suspendTest.DoTest(); |
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619 } |
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620 |
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621 test.End(); |
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622 } |
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623 |