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