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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. Does not test suspending (see TF_SUSPEND) |
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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 "randgen.h" |
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23 #include "user_config.h" |
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24 |
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25 RTest test( _L("TF_ERASE") ); |
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26 |
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27 |
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28 class CEraseTest : public CBase |
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29 { |
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30 public: |
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31 ~CEraseTest(); |
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32 |
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33 void CreateL(); |
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34 |
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35 void DoTest(); |
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36 |
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37 private: |
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38 void DoSimpleTest(); |
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39 void DoSimpleTest2(); |
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40 void DoPseudoRandomTest(); |
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41 void DoRangeTest(); |
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42 |
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43 TInt EraseOneBlock( TInt aBlockNumber ); |
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44 TInt ZeroFillBlock( TInt aBlockNumber ); |
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45 TBool ValidateBlock( TInt aBlockNumber, TUint32 aFillWord ); |
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46 |
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47 |
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48 private: |
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49 TBusLocalDrive iDrive; |
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50 TBool iDriveOpened; |
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51 |
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52 TInt iFlashSize; |
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53 TInt iBlockSize; |
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54 TInt iBlockCount; |
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55 |
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56 TBuf8<512> iReadBuffer; |
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57 |
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58 }; |
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59 |
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60 |
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61 CEraseTest::~CEraseTest() |
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62 { |
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63 if( iDriveOpened ) |
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64 { |
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65 iDrive.Disconnect(); |
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66 } |
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67 } |
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68 |
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69 |
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70 |
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71 void CEraseTest::CreateL() |
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72 { |
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73 // |
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74 // Load the device drivers |
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75 // |
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76 #ifndef SKIP_PDD_LOAD |
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77 test.Printf( _L("Loading %S\n"), &KLfsDriverName ); |
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78 r = User::LoadPhysicalDevice( KLfsDriverName ); |
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79 test( KErrNone == r || KErrAlreadyExists == r ); |
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80 #endif |
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81 |
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82 #ifdef UNMOUNT_DRIVE |
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83 RFs fs; |
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84 test( KErrNone == fs.Connect() ); |
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85 #if 0 |
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86 // XXX - not eka2 |
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87 test( KErrNone == fs.SetDefaultPath( _L("Z:\\") ) ); |
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88 #endif |
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89 TFullName name; |
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90 fs.FileSystemName( name, KLffsLogicalDriveNumber ); |
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91 if( name.Length() > 0 ) |
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92 { |
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93 test.Printf( _L("Unmounting drive") ); |
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94 test( KErrNone == fs.DismountFileSystem( _L("Lffs"), KLffsLogicalDriveNumber) ); |
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95 User::After( 2000000 ); |
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96 test.Printf( _L("Drive unmounted") ); |
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97 } |
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98 fs.Close(); |
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99 #endif |
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100 |
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101 // |
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102 // Open a TBusLogicalDevice to drive |
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103 // |
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104 test.Printf( _L("Opening media channel\n") ); |
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105 static TBool changedFlag = EFalse; |
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106 User::LeaveIfError( iDrive.Connect( KDriveNumber, changedFlag ) ); |
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107 iDriveOpened = ETrue; |
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108 |
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109 // |
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110 // Get size of Flash drive, block size, block count |
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111 // |
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112 TLocalDriveCapsV2Buf info; |
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113 iDrive.Caps(info); |
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114 iFlashSize = I64LOW(info().iSize); |
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115 iBlockSize = info().iEraseBlockSize; |
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116 iBlockCount = iFlashSize / iBlockSize; |
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117 |
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118 test.Printf( _L("Flash size is 0x%x bytes\n"), iFlashSize ); |
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119 test.Printf( _L("Block size is 0x%x bytes\n"), iBlockSize ); |
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120 test.Printf( _L("Block count is %d\n"), iBlockCount ); |
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121 |
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122 test.Printf( _L("CreateL complete\n") ); |
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123 } |
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124 |
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125 |
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126 void CEraseTest::DoTest() |
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127 // |
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128 // Main test dispatcher |
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129 // |
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130 { |
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131 test.Next( _L("Starting tests...") ); |
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132 DoSimpleTest(); |
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133 DoSimpleTest2(); |
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134 DoPseudoRandomTest(); |
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135 DoRangeTest(); |
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136 } |
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137 |
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138 |
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139 TInt CEraseTest::EraseOneBlock( TInt aBlockNumber ) |
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140 // |
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141 // Erases block aBlockNumber on Flash |
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142 // |
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143 { |
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144 TInt blockBaseOffset = aBlockNumber * iBlockSize; |
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145 |
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146 test.Printf( _L("Erasing block %d (offs=0x%x)\n"), aBlockNumber, blockBaseOffset ); |
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147 |
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148 TInt r = iDrive.Format( blockBaseOffset, iBlockSize ); |
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149 |
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150 test.Printf( _L("... Format returned %d\n"), r ); |
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151 return r; |
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152 } |
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153 |
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154 |
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155 TBool CEraseTest::ValidateBlock( TInt aBlockNumber, TUint32 aFillWord ) |
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156 // |
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157 // Checks that every word in block aBlockNumber has the value aFillWord |
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158 // |
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159 { |
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160 TUint offset = aBlockNumber * iBlockSize; |
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161 test.Printf( _L("Validating block %d (offs=0x%x)\n"), aBlockNumber, offset ); |
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162 |
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163 TBool failed = EFalse; |
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164 const TInt readBufLen = iReadBuffer.MaxLength(); |
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165 |
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166 for( TInt len = iBlockSize; len > 0 && !failed ;) |
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167 { |
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168 TInt r = iDrive.Read( offset, readBufLen, iReadBuffer ); |
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169 if( r != KErrNone ) |
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170 { |
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171 test.Printf( _L("... FAIL: read failed (%d) at offset 0x%x\n"), r, offset ); |
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172 test( KErrNone == r ); |
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173 } |
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174 test( iReadBuffer.Length() == readBufLen ); |
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175 |
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176 TUint32* p = (TUint32*)iReadBuffer.Ptr(); |
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177 for( TInt i = 0; i < readBufLen; i += 4 ) |
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178 { |
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179 if( aFillWord != *p ) |
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180 { |
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181 failed = ETrue; |
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182 test.Printf( _L("... FAILED: word @ offs=0x%x, read=0x%x, expected=0x%x\n"), |
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183 offset+i, p[0], aFillWord ); |
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184 break; |
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185 } |
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186 ++p; |
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187 } |
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188 offset += readBufLen; |
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189 len -= readBufLen; |
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190 } |
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191 |
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192 return !failed; |
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193 } |
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194 |
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195 |
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196 TInt CEraseTest::ZeroFillBlock( TInt aBlockNumber ) |
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197 // |
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198 // Zero-fills an entire block |
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199 // The requires that writing works (so as a side-effect performs a |
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200 // very basic test of writing) |
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201 // |
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202 { |
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203 test.Printf( _L("Zero-filling block %d\n"), aBlockNumber ); |
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204 |
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205 // |
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206 // Create a buffer full of zeros |
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207 // |
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208 const TInt KZeroBufSize = 512; |
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209 |
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210 TBuf8<KZeroBufSize> buf; |
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211 buf.FillZ( buf.MaxLength() ); |
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212 |
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213 // |
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214 // Write the data out to the Flash |
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215 // |
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216 TInt writeCount = iBlockSize / KZeroBufSize; |
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217 TInt r = KErrNone; |
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218 TInt blockBaseOffset = aBlockNumber * iBlockSize; |
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219 for( ; (writeCount > 0) && (KErrNone == r); writeCount-- ) |
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220 { |
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221 r = iDrive.Write( blockBaseOffset, buf ); |
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222 if( r != KErrNone ) |
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223 { |
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224 test.Printf( _L("... FAIL: write failed (%d) at offset 0x%x\n"), r, blockBaseOffset ); |
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225 } |
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226 blockBaseOffset += KZeroBufSize; |
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227 } |
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228 |
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229 return r; |
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230 } |
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231 |
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232 |
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233 void CEraseTest::DoSimpleTest() |
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234 // |
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235 // Simple erase test. This just zero-fills and then erases each block in turn |
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236 // |
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237 { |
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238 test.Next( _L("Simple test: erases each block in turn\n") ); |
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239 |
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240 for( TInt block = 0; block < iBlockCount; block++ ) |
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241 { |
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242 test( KErrNone == ZeroFillBlock( block ) ); |
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243 test( ValidateBlock( block, 0 ) ); |
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244 test( KErrNone == EraseOneBlock( block ) ); |
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245 test( ValidateBlock( block, 0xFFFFFFFF ) ); |
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246 } |
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247 } |
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248 |
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249 void CEraseTest::DoSimpleTest2() |
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250 // |
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251 // Another simple erase test. |
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252 // This time we zero-fill all blocks first, then erase them all |
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253 // |
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254 { |
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255 test.Next( _L("Simple test2 : zero-fills whole Flash, then erases all blocks\n") ); |
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256 |
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257 for( TInt block = 0; block < iBlockCount; block++ ) |
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258 { |
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259 test( KErrNone == ZeroFillBlock( block ) ); |
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260 test( ValidateBlock( block, 0 ) ); |
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261 } |
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262 |
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263 for( TInt block = 0; block < iBlockCount; block++ ) |
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264 { |
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265 test( KErrNone == EraseOneBlock( block ) ); |
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266 test( ValidateBlock( block, 0xFFFFFFFF ) ); |
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267 } |
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268 } |
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269 |
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270 |
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271 |
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272 void CEraseTest::DoPseudoRandomTest() |
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273 // |
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274 // Erases the blocks in pseudo-random order, zero-filling first |
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275 // |
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276 { |
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277 test.Next( _L("Test random erase order\n") ); |
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278 |
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279 TRandomGenerator random; |
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280 #if 0 |
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281 random.SetSeed( TInt64(0x1020466E, 0x3F9C0C00) ); |
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282 #else |
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283 random.SetSeed( 0x1020466E ); |
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284 #endif |
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285 |
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286 for( TInt count = 0; count < 50; count++ ) |
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287 { |
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288 TUint block = random.Next() % iBlockCount; |
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289 test( KErrNone == ZeroFillBlock( block ) ); |
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290 |
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291 test( ValidateBlock( block, 0 ) ); |
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292 |
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293 test( KErrNone == EraseOneBlock( block ) ); |
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294 |
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295 test( ValidateBlock( block, 0xFFFFFFFF ) ); |
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296 } |
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297 } |
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298 |
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299 void CEraseTest::DoRangeTest() |
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300 // |
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301 // Simple erase test. This just zero-fills and then erases each block in turn |
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302 // |
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303 { |
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304 test.Next( _L("Range test: check that erase only affects erased block\n") ); |
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305 |
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306 // |
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307 // Pre-fill all blocks with zero |
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308 // |
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309 test.Printf( _L("Pre-zeroing blocks\n") ); |
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310 for( TInt block = 0; block < iBlockCount; block++ ) |
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311 { |
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312 test( KErrNone == ZeroFillBlock( block ) ); |
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313 test( ValidateBlock( block, 0 ) ); |
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314 } |
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315 |
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316 // |
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317 // The test is to erase a block. Check it is erased and all |
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318 // other blocks are still zeros. Then we re-zero the block just |
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319 // erased and repeat test with next block |
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320 // |
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321 test.Printf( _L("Now testing erase...\n") ); |
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322 for( TInt eraseBlock = 0; eraseBlock < iBlockCount; eraseBlock++ ) |
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323 { |
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324 test( KErrNone == EraseOneBlock( eraseBlock ) ); |
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325 test( ValidateBlock( eraseBlock, 0xFFFFFFFF ) ); |
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326 |
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327 // check all other blocks are still zero |
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328 for( TInt j = 0; j < iBlockCount; j++ ) |
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329 { |
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330 if( j != eraseBlock ) |
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331 { |
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332 // test if not the one we just erased |
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333 test( ValidateBlock( j, 0 ) ); |
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334 } |
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335 } |
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336 |
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337 // Now zero-fill the block we just erased and move to next block |
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338 test( KErrNone == ZeroFillBlock( eraseBlock ) ); |
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339 test( ValidateBlock( eraseBlock, 0 ) ); |
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340 } |
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341 |
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342 } |
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343 |
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344 |
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345 TInt E32Main() |
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346 { |
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347 test.Title(); |
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348 test.Start(_L("Testing media erase operations")); |
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349 |
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350 CEraseTest eraseTest; |
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351 TRAPD( ret, eraseTest.CreateL() ); |
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352 if( KErrNone == ret ) |
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353 { |
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354 eraseTest.DoTest(); |
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355 } |
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356 |
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357 test.End(); |
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358 return KErrNone; |
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359 } |