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1 // Copyright (c) 2008-2009 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 // |
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15 |
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16 /** |
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17 @file |
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18 @internalTechnology |
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19 */ |
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20 |
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21 #include <e32base.h> |
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22 |
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23 #include "shared.h" |
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24 #include "msgservice.h" |
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25 #include "msctypes.h" |
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26 |
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27 #include "mprotocol.h" |
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28 #include "mblocktransferprotocol.h" |
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29 #include "tspcclientinterface.h" |
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30 #include "cscsiprotocol.h" |
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31 |
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32 #include "cusbhostmslogicalunit.h" |
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33 #include "usbmshostpanic.h" |
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34 #include "msdebug.h" |
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35 #include "debug.h" |
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36 |
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37 |
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38 CUsbHostMsLogicalUnit* CUsbHostMsLogicalUnit::NewL(TLun aLun) |
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39 { |
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40 __MSFNSLOG |
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41 CUsbHostMsLogicalUnit* r = new (ELeave) CUsbHostMsLogicalUnit(aLun); |
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42 CleanupStack::PushL(r); |
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43 r->ConstructL(); |
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44 CleanupStack::Pop(); |
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45 return r; |
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46 } |
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47 |
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48 |
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49 void CUsbHostMsLogicalUnit::ConstructL() |
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50 { |
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51 __MSFNLOG |
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52 const TInt KInitialDataBufSize = 0x200; |
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53 iDataBuf.CreateL(KInitialDataBufSize); |
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54 } |
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55 |
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56 |
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57 CUsbHostMsLogicalUnit::CUsbHostMsLogicalUnit(TLun aLun) |
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58 : iProtocol(NULL), |
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59 iLun(aLun), |
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60 iSuspendRequest(EFalse) |
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61 { |
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62 __MSFNLOG |
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63 } |
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64 |
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65 CUsbHostMsLogicalUnit::~CUsbHostMsLogicalUnit() |
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66 { |
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67 __MSFNLOG |
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68 iDataBuf.Close(); |
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69 delete iProtocol; |
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70 } |
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71 |
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72 |
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73 void CUsbHostMsLogicalUnit::InitL() |
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74 { |
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75 __MSFNLOG |
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76 iProtocol->InitialiseUnitL(); |
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77 } |
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78 |
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79 void CUsbHostMsLogicalUnit::UnInitL() |
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80 { |
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81 __MSFNLOG |
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82 iProtocol->UninitialiseUnitL(); |
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83 } |
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84 |
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85 void CUsbHostMsLogicalUnit::ReadL(const RMessage2& aMessage) |
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86 { |
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87 __MSFNLOG |
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88 TReadWrite p; |
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89 TPtr8 pReadWrite((TUint8*)&p,sizeof(TReadWrite)); |
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90 aMessage.ReadL(0, pReadWrite); |
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91 __HOSTPRINT2(_L("pos = 0x%lx len = %08x"), p.iPos, p.iLen); |
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92 |
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93 User::LeaveIfError(CheckPosition(p)); |
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94 |
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95 // check if buffer can hold requested data and resize if not |
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96 if (iDataBuf.MaxLength() < p.iLen) |
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97 iDataBuf.ReAllocL(p.iLen); |
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98 |
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99 iProtocol->ReadL(p.iPos, iDataBuf, p.iLen); |
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100 aMessage.WriteL(1, iDataBuf); |
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101 } |
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102 |
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103 |
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104 void CUsbHostMsLogicalUnit::WriteL(const RMessage2& aMessage) |
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105 { |
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106 __MSFNLOG |
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107 TReadWrite p; |
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108 TPtr8 pReadWrite((TUint8*)&p,sizeof(TReadWrite)); |
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109 aMessage.ReadL(1, pReadWrite); |
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110 __HOSTPRINT2(_L("pos = 0x%lx len = %08x"), p.iPos, p.iLen); |
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111 |
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112 User::LeaveIfError(CheckPosition(p)); |
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113 |
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114 // check if buffer can hold requested data and resize if not |
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115 if (iDataBuf.MaxLength() < p.iLen) |
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116 iDataBuf.ReAllocL(p.iLen); |
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117 |
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118 aMessage.ReadL(0, iDataBuf); |
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119 iProtocol->WriteL(p.iPos, iDataBuf, p.iLen); |
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120 } |
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121 |
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122 |
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123 void CUsbHostMsLogicalUnit::EraseL(const RMessage2& aMessage) |
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124 { |
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125 __MSFNLOG |
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126 TReadWrite p; |
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127 TPtr8 pReadWrite((TUint8*)&p,sizeof(TReadWrite)); |
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128 aMessage.ReadL(0, pReadWrite); |
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129 __HOSTPRINT2(_L("pos = 0x%lx len = %08x"), p.iPos, p.iLen); |
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130 |
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131 User::LeaveIfError(CheckPosition(p)); |
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132 |
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133 // check if buffer can hold requested data and resize if not |
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134 if (iDataBuf.MaxLength() < p.iLen) |
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135 iDataBuf.ReAllocL(p.iLen); |
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136 |
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137 iDataBuf.FillZ(p.iLen); |
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138 iProtocol->WriteL(p.iPos, iDataBuf, p.iLen); |
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139 } |
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140 |
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141 |
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142 void CUsbHostMsLogicalUnit::CapsL(const RMessage2& aMessage) |
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143 { |
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144 __MSFNLOG |
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145 |
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146 TCapsInfo capsInfo; |
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147 TPckg<TCapsInfo> pckg(capsInfo); |
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148 iProtocol->GetCapacityL(capsInfo); |
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149 iSize = static_cast<TInt64>(capsInfo.iNumberOfBlocks) * capsInfo.iBlockLength; |
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150 aMessage.WriteL(0, pckg); |
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151 } |
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152 |
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153 void CUsbHostMsLogicalUnit::NotifyChange(const RMessage2& aMessage) |
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154 { |
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155 __MSFNLOG |
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156 iProtocol->NotifyChange(aMessage); |
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157 } |
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158 |
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159 |
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160 void CUsbHostMsLogicalUnit::ForceCompleteNotifyChangeL() |
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161 { |
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162 __MSFNLOG |
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163 iProtocol->ForceCompleteNotifyChangeL(); |
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164 } |
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165 |
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166 void CUsbHostMsLogicalUnit::CancelChangeNotifierL() |
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167 { |
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168 __MSFNLOG |
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169 iProtocol->CancelChangeNotifierL(); |
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170 } |
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171 |
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172 TBool CUsbHostMsLogicalUnit::IsConnected() |
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173 { |
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174 return iProtocol->IsConnected() ? ETrue : EFalse; |
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175 } |
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176 |
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177 TBool CUsbHostMsLogicalUnit::IsReadyToSuspend() |
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178 { |
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179 __MSFNLOG |
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180 return iSuspendRequest ? ETrue : EFalse; |
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181 } |
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182 |
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183 void CUsbHostMsLogicalUnit::ReadyToSuspend() |
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184 { |
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185 __MSFNLOG |
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186 iSuspendRequest = ETrue; |
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187 } |
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188 |
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189 void CUsbHostMsLogicalUnit::CancelReadyToSuspend() |
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190 { |
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191 __MSFNLOG |
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192 iSuspendRequest = EFalse; |
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193 } |
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194 |
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195 void CUsbHostMsLogicalUnit::SuspendL() |
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196 { |
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197 __MSFNLOG |
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198 iProtocol->SuspendL(); |
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199 } |
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200 |
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201 void CUsbHostMsLogicalUnit::ResumeL() |
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202 { |
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203 __MSFNLOG |
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204 // We do not cancel iSuspendRequest here |
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205 iProtocol->ResumeL(); |
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206 } |
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207 |
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208 void CUsbHostMsLogicalUnit::DoLunReadyCheckL() |
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209 { |
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210 __MSFNLOG |
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211 iProtocol->DoScsiReadyCheckEventL(); |
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212 } |
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213 |
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214 TInt CUsbHostMsLogicalUnit::InitialiseProtocolL(TLun aLun, |
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215 THostMassStorageConfig& aConfig, |
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216 MTransport& aTransport) |
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217 { |
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218 __MSFNLOG |
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219 __ASSERT_DEBUG(iProtocol == NULL, User::Panic(KUsbMsHostPanicCat, EProtocolNotFree)); |
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220 switch(aConfig.iProtocolId) |
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221 { |
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222 case ScsiProtocol: |
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223 iProtocol = CScsiProtocol::NewL(aLun, aTransport); |
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224 break; |
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225 default: |
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226 __HOSTPRINT(_L("Unsupported Transport class requested")); |
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227 iProtocol = NULL; |
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228 return KErrNotSupported; |
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229 } |
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230 return KErrNone; |
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231 } |
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232 |
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233 TInt CUsbHostMsLogicalUnit::CheckPosition(const TReadWrite& aReadWrite) |
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234 { |
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235 if (aReadWrite.iLen == 0) |
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236 { |
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237 if (aReadWrite.iPos == iSize) |
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238 return KErrEof; |
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239 else |
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240 return KErrArgument; |
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241 } |
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242 |
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243 // detect drive not present |
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244 if (iSize == 0) |
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245 return KErrNotReady; |
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246 |
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247 if (aReadWrite.iPos >= iSize) |
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248 return KErrArgument; |
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249 return KErrNone; |
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250 } |