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1 // Copyright (c) 2001-2009 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 // Simple app to dump out the contents of a drive |
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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_DUMP") ); |
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25 |
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26 |
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27 const TInt KBytesPerLine = 32; |
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28 |
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29 |
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30 class CDumper : public CBase |
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31 { |
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32 public: |
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33 ~CDumper(); |
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34 |
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35 void CreateL(); |
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36 void DoDump(); |
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37 |
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38 private: |
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39 void Add3Bytes( const TUint8* aBytes ); |
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40 |
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41 private: |
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42 TBusLocalDrive iDrive; |
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43 TBool iDriveOpened; |
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44 TBool iDriveSize; |
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45 |
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46 TBuf<KBytesPerLine> iLineBuf; |
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47 }; |
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48 |
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49 |
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50 CDumper::~CDumper() |
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51 { |
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52 if( iDriveOpened ) |
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53 { |
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54 iDrive.Disconnect(); |
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55 } |
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56 } |
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57 |
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58 |
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59 |
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60 void CDumper::CreateL() |
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61 { |
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62 // |
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63 // Load the device driver |
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64 // |
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65 #ifdef UNMOUNT_DRIVE |
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66 RFs fs; |
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67 test( KErrNone == fs.Connect() ); |
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68 #if 0 |
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69 // XXX not EKA2 |
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70 test( KErrNone == fs.SetDefaultPath( _L("Z:\\") ) ); |
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71 #endif |
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72 TFullName name; |
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73 fs.FileSystemName( name, KLffsLogicalDriveNumber ); |
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74 if( name.Length() > 0 ) |
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75 { |
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76 test.Printf( _L("Unmounting drive") ); |
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77 test( KErrNone == fs.DismountFileSystem( _L("Lffs"), KLffsLogicalDriveNumber) ); |
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78 User::After( 2000000 ); |
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79 test.Printf( _L("Drive unmounted") ); |
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80 } |
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81 fs.Close(); |
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82 #endif |
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83 |
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84 // |
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85 // Open a TBusLogicalDevice to it |
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86 // |
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87 test.Printf( _L("Opening media channel") ); |
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88 TBool changedFlag = EFalse; |
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89 User::LeaveIfError( iDrive.Connect( KDriveNumber, changedFlag ) ); |
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90 iDriveOpened = ETrue; |
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91 |
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92 // |
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93 // Get size of Flash drive |
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94 // |
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95 TLocalDriveCapsV2Buf info; |
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96 iDrive.Caps(info); |
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97 iDriveSize = I64LOW(info().iSize); |
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98 |
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99 |
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100 iLineBuf.Zero(); |
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101 test.Printf( _L("Drive size is 0x%x bytes"), iDriveSize ); |
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102 } |
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103 |
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104 |
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105 void CDumper::Add3Bytes( const TUint8* aBytes ) |
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106 { |
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107 TUint8 buf[4]; // produces four output bytes |
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108 |
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109 buf[0] = 0x30 + (aBytes[0] >> 2); // first 6 bits |
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110 buf[1] = 0x30 + ( ((aBytes[0] << 4)&0x30) | (aBytes[1] >> 4)); |
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111 buf[2] = 0x30 + ( ((aBytes[1] << 2)&0x3C) | (aBytes[2] >> 6)); |
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112 buf[3] = 0x30 + (aBytes[2] & 0x3F); // last 6 bits |
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113 |
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114 TInt avail = iLineBuf.MaxLength() - iLineBuf.Length(); |
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115 if( avail > 4 ) |
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116 { |
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117 avail = 4; |
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118 } |
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119 |
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120 TUint8* p = &buf[0]; |
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121 for( TInt i = 0; i < avail; i++ ) |
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122 { |
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123 iLineBuf.Append( *p++ ); |
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124 } |
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125 if( avail < 4 ) |
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126 { |
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127 test.Printf( iLineBuf ); |
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128 iLineBuf.Zero(); |
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129 for( TInt i = 4 - avail; i > 0; i-- ) |
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130 { |
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131 iLineBuf.Append( *p++ ); |
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132 } |
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133 } |
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134 } |
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135 |
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136 |
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137 |
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138 void CDumper::DoDump() |
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139 { |
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140 TBuf8<300> buf; |
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141 |
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142 TInt remain = iDriveSize; |
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143 TInt64 offset = 0; |
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144 while( remain > 0 ) |
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145 { |
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146 TInt readLen = Min( remain, 300 ); |
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147 TInt r = iDrive.Read( offset, readLen, buf ); |
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148 if( KErrNone != r ) |
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149 { |
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150 RDebug::Print( _L("Error: drive read failed %d"), r ); |
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151 return; |
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152 } |
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153 TUint8* p = (TUint8*)buf.Ptr(); |
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154 TInt remainder = readLen % 3; |
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155 if( remainder != 0 ) |
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156 { |
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157 // leftover bytes, must be end of media, pad buffer |
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158 buf.AppendFill( 0x0, 3 - remainder ); |
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159 readLen += 3 - remainder; // round up |
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160 } |
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161 for( TInt i = readLen / 3; i > 0; i-- ) |
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162 { |
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163 Add3Bytes( p ); |
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164 p += 3; |
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165 } |
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166 offset += readLen; |
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167 remain -= readLen; |
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168 } |
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169 test.Printf( iLineBuf ); // remaining bit |
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170 } |
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171 |
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172 |
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173 TInt E32Main() |
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174 { |
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175 test.Title(); |
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176 test.Start(_L("Dumping Flash contents....")); |
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177 |
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178 CDumper dumper; |
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179 TRAPD( ret, dumper.CreateL() ); |
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180 if( KErrNone == ret ) |
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181 { |
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182 dumper.DoDump(); |
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183 } |
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184 return KErrNone; |
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185 } |