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1 // Copyright (c) 2004-2009 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 // CUsbMassStorageController implementation. |
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15 // |
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16 // |
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17 |
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18 /** |
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19 @file |
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20 @internalTechnology |
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21 */ |
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22 |
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23 #include "cusbmassstoragecontroller.h" |
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24 #include "massstoragedebug.h" |
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25 #include "scsiprot.h" |
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26 #include "cbulkonlytransport.h" |
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27 |
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28 /** |
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29 Destructor |
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30 */ |
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31 CUsbMassStorageController::~CUsbMassStorageController() |
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32 { |
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33 delete iServer; |
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34 delete iProtocol; |
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35 delete iTransport; |
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36 delete iDriveManager; |
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37 } |
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38 |
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39 /** |
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40 Creates the drive manager, transport, protocol and server |
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41 |
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42 @param aMaxDrives Maximum number of Mass Storage drives supported. |
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43 */ |
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44 void CUsbMassStorageController::CreateL(RArray<TInt>& aDriveMapping) |
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45 { |
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46 __PRINT(_L("CUsbMassStorageController::CreateL In")); |
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47 iTransportLddFlag = EUsbcsc; // Create transport object using SC Ldd By default |
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48 //Save this value for use in the Reset method. |
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49 iMaxDrives = aDriveMapping.Count(); |
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50 //Create and init drive manager |
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51 iDriveManager = CDriveManager::NewL(aDriveMapping); |
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52 |
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53 //Create transport and protocol and initialize them |
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54 __PRINT(_L("CUsbMassStorageController::CreateL: Creating transport and protocol")); |
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55 iTransport = CBulkOnlyTransport::NewL(iMaxDrives, *this, iTransportLddFlag); |
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56 if (!iTransport) |
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57 User::Leave(KErrNoMemory); |
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58 |
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59 iProtocol = CScsiProtocol::NewL(*iDriveManager); |
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60 |
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61 //Create and start server |
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62 __PRINT(_L("CUsbMassStorageController::CreateL: Creating server")); |
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63 iServer = CUsbMassStorageServer::NewLC(*this); |
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64 CleanupStack::Pop(iServer); |
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65 __PRINT(_L("CUsbMassStorageController::CreateL Out")); |
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66 } |
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67 |
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68 /** |
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69 Returns a reference to the drive manager |
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70 |
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71 @return A reference to the drive manager |
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72 */ |
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73 CDriveManager& CUsbMassStorageController::DriveManager() |
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74 { |
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75 return *iDriveManager; |
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76 } |
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77 |
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78 |
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79 void CUsbMassStorageController::GetTransport(MTransportBase* &aTransport) |
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80 { |
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81 aTransport = iTransport; |
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82 } |
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83 |
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84 /** |
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85 Starts the transport and initializes the protocol. |
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86 |
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87 @param aConfig Reference to Mass Storage configuration data |
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88 */ |
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89 TInt CUsbMassStorageController::Start(TMassStorageConfig& aConfig) |
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90 { |
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91 __PRINT(_L("CUsbMassStorageController::Start In")); |
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92 //Save this value for use in the Reset method. |
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93 iConfig = aConfig; |
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94 |
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95 __ASSERT_DEBUG(iTransport, User::Invariant()); |
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96 if ((iTransport->InitialiseTransportL((TInt) iTransportLddFlag)) != KErrNone) |
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97 { |
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98 iTransportLddFlag = EUsbc; // If SC Ldd not present use the default USB Client Ldd |
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99 delete iTransport; |
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100 iTransport = CBulkOnlyTransport::NewL(iMaxDrives, *this, iTransportLddFlag); |
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101 if (!iTransport) |
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102 User::Leave(KErrNoMemory); |
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103 if ((iTransport->InitialiseTransportL((TInt) iTransportLddFlag)) != KErrNone) |
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104 return KErrNotFound; |
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105 } |
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106 |
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107 TInt err = KErrNotReady; |
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108 |
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109 if (iProtocol && iTransport) |
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110 { |
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111 iTransport->RegisterProtocol(*iProtocol); |
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112 iProtocol->RegisterTransport(iTransport); |
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113 __PRINT(_L("CUsbMassStorageController::Start: Starting")); |
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114 ((CScsiProtocol*)iProtocol)->SetScsiParameters(aConfig); |
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115 err = iTransport->Start(); |
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116 } |
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117 |
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118 __PRINT(_L("CUsbMassStorageController::Start Out")); |
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119 |
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120 return err; |
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121 } |
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122 |
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123 /** |
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124 Stops the transport. |
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125 */ |
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126 TInt CUsbMassStorageController::Stop() |
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127 { |
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128 |
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129 __PRINT(_L("CUsbMassStorageController::Stop In")); |
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130 TInt err = KErrNotReady; |
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131 if (iTransport) |
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132 { |
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133 __PRINT(_L("CUsbMassStorageController::Stop: Stopping")); |
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134 err = iTransport->Stop(); |
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135 } |
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136 TInt i=0; |
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137 for (i=0; i<=iMaxDrives; ++i) |
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138 { |
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139 iDriveManager->SetCritical(i, EFalse); //unset critical |
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140 } |
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141 __PRINT(_L("CUsbMassStorageController::Stop Out")); |
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142 |
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143 return err; |
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144 } |
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145 |
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146 /** |
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147 Delete the transport and protocol and start new ones. |
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148 */ |
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149 void CUsbMassStorageController::Reset() |
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150 { |
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151 |
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152 delete iProtocol; |
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153 iProtocol = NULL; |
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154 |
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155 //Create transport and protocol and initialize them |
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156 __PRINT(_L("CUsbMassStorageController::Reset: Creating protocol")); |
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157 |
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158 TRAPD(err,iProtocol = CScsiProtocol::NewL(*iDriveManager)); |
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159 err = err; |
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160 __ASSERT_DEBUG(err==KErrNone, User::Invariant()); |
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161 iTransport->RegisterProtocol(*iProtocol); |
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162 iProtocol->RegisterTransport(iTransport); |
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163 } |
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164 |