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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 // |
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16 // |
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17 |
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18 #include <e32std.h> |
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19 #include <e32std_private.h> |
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20 #include <e32svr.h> |
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21 #include <e32test.h> |
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22 #include "user_config.h" |
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23 |
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24 RTest test( _L("TF_SUSPEND") ); |
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25 |
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26 |
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27 |
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28 class CEraser |
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29 { |
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30 public: |
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31 enum TFunction |
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32 { |
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33 EEraseBlock |
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34 }; |
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35 |
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36 public: |
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37 ~CEraser(); |
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38 void CreateL(); |
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39 void Stop(); |
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40 void WaitForReady(); |
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41 |
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42 inline void WaitForDone() |
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43 { |
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44 WaitForReady(); |
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45 iWaitingSignal.Signal(); // resignal, ready for next Start() |
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46 }; |
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47 |
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48 void EraseBlock( TUint32 aOffset, TUint aLength ); |
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49 |
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50 private: |
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51 void Panic( TInt aPanicNum ); |
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52 void Start( TFunction aFunction ); |
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53 |
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54 static TInt EraserThread( TAny* aParam ); |
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55 |
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56 void DoEraseBlock(); |
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57 |
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58 private: |
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59 RThread iThread; |
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60 |
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61 // |
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62 // Shared between main & eraser thread |
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63 // |
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64 TFunction iRequestedFunction; |
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65 RSemaphore iGoSignal; |
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66 RSemaphore iWaitingSignal; |
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67 TBool iStop; |
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68 |
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69 // |
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70 // These are local to the eraser thread |
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71 // |
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72 TUint iOffset; |
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73 TUint iLength; |
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74 TBusLocalDrive iDrive; |
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75 }; |
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76 |
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77 |
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78 |
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79 CEraser::~CEraser() |
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80 { |
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81 iThread.Terminate( KErrNone ); |
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82 iThread.Close(); |
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83 iGoSignal.Close(); |
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84 iWaitingSignal.Close(); |
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85 } |
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86 |
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87 void CEraser::Panic( TInt aPanicNum ) |
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88 { |
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89 _LIT( KPanicCat, "ERASE-T" ); |
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90 User::Panic( KPanicCat, aPanicNum ); |
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91 RProcess().Panic( KPanicCat, aPanicNum ); |
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92 } |
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93 |
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94 |
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95 void CEraser::CreateL() |
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96 // |
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97 // Create new thread and wait for it to become ready |
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98 // |
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99 { |
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100 iGoSignal.CreateLocal( 0 ); // initially blocked |
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101 iWaitingSignal.CreateLocal( 0 ); // initially blocked |
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102 iStop = EFalse; |
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103 User::LeaveIfError( iThread.Create( _L("ERASER"), EraserThread, 2048, 2048, 65536, this ) ); |
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104 test.Printf( _L("Eraser thread created\n") ); |
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105 |
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106 iThread.Resume(); |
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107 |
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108 test.Printf( _L("Waiting for thread to become ready\n") ); |
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109 WaitForReady(); |
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110 iWaitingSignal.Signal(); |
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111 } |
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112 |
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113 void CEraser::Start( TFunction aFunction ) |
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114 // |
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115 // Start the suspender thread executing function aFunction |
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116 // |
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117 { |
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118 iStop = EFalse; |
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119 WaitForReady(); |
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120 iRequestedFunction = aFunction; |
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121 iGoSignal.Signal(); |
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122 } |
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123 |
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124 void CEraser::Stop() |
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125 // |
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126 // Stop the thread |
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127 // |
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128 { |
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129 iStop = ETrue; |
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130 } |
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131 |
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132 void CEraser::WaitForReady() |
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133 { |
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134 iWaitingSignal.Wait(); |
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135 } |
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136 |
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137 void CEraser::EraseBlock( TUint32 aOffset, TUint aLength ) |
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138 // |
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139 // Execute a block erase |
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140 // |
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141 { |
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142 iOffset = aOffset; |
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143 iLength = aLength; |
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144 Start( EEraseBlock ); |
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145 } |
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146 |
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147 |
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148 TInt CEraser::EraserThread( TAny* aParam ) |
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149 // |
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150 // The thread which executes suspend functions |
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151 // |
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152 { |
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153 RDebug::Print( _L("Eraser thread starts") ); |
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154 |
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155 CEraser& self = *reinterpret_cast<CEraser*>(aParam); |
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156 |
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157 // |
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158 // Open our own TBusLogicalDevice channel |
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159 // |
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160 TBool changedFlag; |
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161 if( KErrNone != self.iDrive.Connect( KDriveNumber, changedFlag ) ) |
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162 { |
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163 self.Panic( 1 ); |
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164 } |
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165 |
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166 RDebug::Print( _L("Eraser thread connected to drive") ); |
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167 |
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168 while( !self.iStop ) |
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169 { |
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170 // |
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171 // Signal that we are ready for a request |
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172 // |
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173 RDebug::Print( _L("Eraser thread waiting...") ); |
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174 self.iWaitingSignal.Signal(); |
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175 |
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176 // |
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177 // Wait for a request |
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178 // |
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179 self.iGoSignal.Wait(); |
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180 RDebug::Print( _L("Eraser thread go (%d)"), self.iRequestedFunction ); |
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181 |
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182 switch( self.iRequestedFunction ) |
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183 { |
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184 case EEraseBlock: |
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185 self.DoEraseBlock(); |
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186 break; |
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187 |
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188 default: |
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189 self.Panic( 0 ); |
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190 } |
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191 |
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192 } |
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193 |
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194 self.iDrive.Disconnect(); |
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195 return KErrNone; |
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196 } |
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197 |
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198 void CEraser::DoEraseBlock() |
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199 // |
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200 // Issue an erase |
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201 // |
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202 { |
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203 RDebug::Print( _L("Eraser starting erase...") ); |
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204 |
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205 TInt64 offs( iOffset ); |
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206 TInt r = iDrive.Format( offs, iLength ); |
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207 |
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208 if( KErrNone != r ) |
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209 { |
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210 RDebug::Print( _L("Eraser: FAIL: erase request returns %d"), r ); |
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211 Panic( 2 ); |
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212 } |
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213 } |
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214 |
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215 |
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216 |
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217 class CSuspendTest : public CBase |
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218 { |
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219 public: |
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220 ~CSuspendTest(); |
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221 |
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222 void CreateL(); |
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223 |
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224 void DoTest(); |
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225 |
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226 private: |
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227 |
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228 TInt EraseOneBlock( TInt aBlockNumber ); |
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229 TInt ZeroFillBlock( TInt aBlockNumber ); |
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230 TBool ValidateBlock( TInt aBlockNumber, TUint32 aFillWord ); |
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231 TInt ZeroAllBlocks(); |
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232 TBool ValidateAllBlocks( TUint32 aFillWord ); |
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233 |
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234 void DoImmediateSuspendTest(); |
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235 |
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236 private: |
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237 TBusLocalDrive iDrive; |
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238 TBool iDriveOpened; |
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239 |
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240 CEraser* iEraser; |
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241 |
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242 TInt iFlashSize; |
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243 TInt iBlockSize; |
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244 TInt iBlockCount; |
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245 |
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246 TBuf8<512> iReadBuffer; |
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247 }; |
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248 |
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249 |
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250 CSuspendTest::~CSuspendTest() |
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251 { |
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252 if( iDriveOpened ) |
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253 { |
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254 iDrive.Disconnect(); |
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255 } |
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256 |
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257 delete iEraser; |
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258 } |
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259 |
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260 |
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261 |
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262 void CSuspendTest::CreateL() |
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263 { |
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264 // |
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265 // Create the eraser thread |
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266 // |
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267 iEraser = new(ELeave) CEraser; |
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268 iEraser->CreateL(); |
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269 |
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270 // |
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271 // Load the device drivers |
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272 // |
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273 TInt r; |
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274 #ifndef SKIP_PDD_LOAD |
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275 test.Printf( _L("Loading %S\n"), &KLfsDriverName ); |
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276 r = User::LoadPhysicalDevice( KLfsDriverName ); |
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277 test( KErrNone == r || KErrAlreadyExists == r ); |
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278 #endif |
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279 |
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280 #ifdef UNMOUNT_DRIVE |
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281 RFs fs; |
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282 test( KErrNone == fs.Connect() ); |
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283 #if 0 |
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284 // XXX - not EKA2 |
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285 test( KErrNone == fs.SetDefaultPath( _L("Z:\\") ) ); |
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286 #endif |
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287 TFullName name; |
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288 fs.FileSystemName( name, KLffsLogicalDriveNumber ); |
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289 if( name.Length() > 0 ) |
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290 { |
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291 test.Printf( _L("Unmounting drive") ); |
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292 test( KErrNone == fs.DismountFileSystem( _L("Lffs"), KLffsLogicalDriveNumber) ); |
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293 User::After( 2000000 ); |
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294 test.Printf( _L("Drive unmounted") ); |
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295 } |
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296 fs.Close(); |
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297 #endif |
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298 |
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299 // |
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300 // Open a TBusLogicalDevice to the driver |
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301 // |
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302 test.Printf( _L("Opening media channel\n") ); |
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303 TBool changedFlag = EFalse; |
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304 r = iDrive.Connect( KDriveNumber, changedFlag ); |
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305 User::LeaveIfError( r ); |
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306 iDriveOpened = ETrue; |
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307 |
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308 // |
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309 // Get size of Flash drive, block size, block count |
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310 // |
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311 TLocalDriveCapsV2Buf info; |
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312 iDrive.Caps(info); |
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313 iFlashSize = I64LOW(info().iSize); |
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314 iBlockSize = info().iEraseBlockSize; |
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315 iBlockCount = iFlashSize / iBlockSize; |
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316 |
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317 test.Printf( _L("Flash size is 0x%x bytes\n"), iFlashSize ); |
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318 test.Printf( _L("Block size is 0x%x bytes\n"), iBlockSize ); |
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319 test.Printf( _L("Block count is %d\n"), iBlockCount ); |
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320 |
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321 test.Printf( _L("CreateL complete\n") ); |
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322 } |
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323 |
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324 |
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325 void CSuspendTest::DoTest() |
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326 // |
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327 // Main test dispatcher |
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328 // |
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329 { |
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330 DoImmediateSuspendTest(); |
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331 } |
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332 |
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333 |
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334 TInt CSuspendTest::EraseOneBlock( TInt aBlockNumber ) |
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335 // |
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336 // Erases block aBlockNumber on Flash |
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337 // |
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338 { |
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339 TInt blockBaseOffset = aBlockNumber * iBlockSize; |
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340 |
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341 test.Printf( _L("Erasing block %d (offs=0x%x)\n"), aBlockNumber, blockBaseOffset ); |
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342 |
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343 TInt r = iDrive.Format( blockBaseOffset, iBlockSize ); |
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344 |
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345 test.Printf( _L("... block erased, rv=%d\n"), r ); |
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346 return r; |
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347 } |
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348 |
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349 |
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350 TBool CSuspendTest::ValidateBlock( TInt aBlockNumber, TUint32 aFillWord ) |
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351 // |
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352 // Checks that every word in block aBlockNumber has the value aFillWord |
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353 // |
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354 { |
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355 TUint offset = aBlockNumber * iBlockSize; |
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356 test.Printf( _L("Validating block %d (offs=0x%x)\n"), aBlockNumber, offset ); |
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357 |
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358 TBool failed = EFalse; |
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359 const TInt readBufLen = iReadBuffer.MaxLength(); |
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360 |
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361 for( TInt len = iBlockSize; len > 0 && !failed ;) |
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362 { |
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363 TInt r = iDrive.Read( offset, readBufLen, iReadBuffer ); |
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364 if( r != KErrNone ) |
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365 { |
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366 test.Printf( _L("... FAIL: read failed (%d) at offset 0x%x\n"), r, offset ); |
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367 test( KErrNone == r ); |
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368 } |
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369 test( iReadBuffer.Length() == readBufLen ); |
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370 |
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371 TUint32* p = (TUint32*)iReadBuffer.Ptr(); |
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372 for( TInt i = 0; i < readBufLen; i += 4 ) |
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373 { |
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374 if( aFillWord != *p ) |
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375 { |
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376 failed = ETrue; |
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377 test.Printf( _L("... FAILED: word @ offs=0x%x, read=0x%x, expected=0x%x\n"), |
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378 offset+i, p[0], aFillWord ); |
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379 break; |
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380 } |
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381 ++p; |
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382 } |
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383 offset += readBufLen; |
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384 len -= readBufLen; |
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385 } |
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386 |
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387 return !failed; |
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388 } |
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389 |
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390 |
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391 TInt CSuspendTest::ZeroFillBlock( TInt aBlockNumber ) |
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392 // |
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393 // Zero-fills and entire block |
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394 // The requires that writing works |
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395 // |
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396 { |
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397 test.Printf( _L("Zero-filling block %d\n"), aBlockNumber ); |
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398 |
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399 // |
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400 // Create a buffer full of zeros |
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401 // |
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402 const TInt KZeroBufSize = 512; |
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403 |
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404 TBuf8<KZeroBufSize> buf; |
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405 buf.FillZ( buf.MaxLength() ); |
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406 |
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407 // |
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408 // Write the data out to the Flash |
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409 // |
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410 TInt writeCount = iBlockSize / KZeroBufSize; |
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411 TInt r = KErrNone; |
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412 TInt blockBaseOffset = aBlockNumber * iBlockSize; |
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413 for( ; (writeCount > 0) && (KErrNone == r); writeCount-- ) |
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414 { |
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415 r = iDrive.Write( blockBaseOffset, buf ); |
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416 if( r != KErrNone ) |
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417 { |
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418 test.Printf( _L("... FAIL: write failed (%d) at offset 0x%x\n"), blockBaseOffset ); |
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419 } |
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420 blockBaseOffset += KZeroBufSize; |
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421 } |
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422 |
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423 return r; |
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424 } |
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425 |
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426 |
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427 TInt CSuspendTest::ZeroAllBlocks() |
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428 // |
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429 // Writes zeros to all blocks |
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430 // |
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431 { |
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432 test.Printf( _L("Zeroing all blocks\n") ); |
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433 |
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434 TInt r = KErrNone; |
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435 for( TInt i = 0; (i < iBlockCount) && (KErrNone == r); i++ ) |
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436 { |
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437 r = ZeroFillBlock( i ); |
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438 } |
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439 |
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440 return r; |
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441 } |
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442 |
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443 TBool CSuspendTest::ValidateAllBlocks( TUint32 aFillWord ) |
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444 // |
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445 // Checks that all blocks contain aFillWord |
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446 // |
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447 { |
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448 test.Printf( _L("Validating all blocks\n") ); |
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449 |
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450 TBool failed = EFalse; |
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451 for( TInt i = 0; (i < iBlockCount) && (!failed); i++ ) |
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452 { |
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453 failed = !ValidateBlock( i, aFillWord ); |
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454 } |
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455 |
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456 return !failed; |
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457 } |
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458 |
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459 |
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460 void CSuspendTest::DoImmediateSuspendTest() |
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461 // |
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462 // For each block issues an erase and then immediately |
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463 // requests a read on another block. Waits for erase to |
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464 // finish and validates it |
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465 // |
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466 { |
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467 test.Next( _L("Immediate suspend test") ); |
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468 test( KErrNone == ZeroAllBlocks() ); |
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469 test( ValidateAllBlocks( 0 ) ); |
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470 |
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471 // |
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472 // We repeat the test for each block, erasing block n and reading from |
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473 // block (n+1) modulo iBlockCount |
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474 // |
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475 for( TInt eraseBlock = 0; eraseBlock < iBlockCount; eraseBlock++ ) |
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476 { |
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477 TUint32 readBlock = (eraseBlock + 1) % iBlockCount; |
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478 TUint32 erasePos = eraseBlock * iBlockSize; |
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479 TInt readPos = readBlock * iBlockSize; |
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480 |
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481 TBuf8<32> buf; |
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482 |
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483 // |
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484 // Start the erase |
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485 // |
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486 iEraser->EraseBlock( erasePos, iBlockSize ); |
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487 |
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488 // |
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489 // Do a read immediately |
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490 // |
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491 test.Printf( _L("main thread requesting read") ); |
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492 test( KErrNone == iDrive.Read( readPos, buf.MaxLength(), buf ) ); |
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493 |
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494 // |
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495 // Wait for erase to finish |
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496 // |
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497 test.Printf( _L("main thread waiting for erase to finish...") ); |
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498 iEraser->WaitForDone(); |
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499 |
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500 // |
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501 // Now check that the block was erased |
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502 // |
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503 test( ValidateBlock( eraseBlock, 0xFFFFFFFF ) ); |
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504 |
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505 } |
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506 |
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507 } |
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508 |
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509 |
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510 |
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511 |
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512 TInt E32Main() |
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513 { |
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514 test.Title(); |
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515 test.Start(_L("Testing media erase+suspend operations")); |
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516 |
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517 CSuspendTest suspendTest; |
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518 TRAPD( ret, suspendTest.CreateL() ); |
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519 if( KErrNone == ret ) |
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520 { |
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521 suspendTest.DoTest(); |
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522 } |
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523 |
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524 test.End(); |
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525 return KErrNone; |
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526 } |