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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 #include <e32base_private.h> |
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23 #include <d32usbdi_hubdriver.h> |
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24 #include <d32usbdi.h> |
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25 #include <d32otgdi.h> |
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26 #include <d32usbdescriptors.h> |
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27 #include <d32usbtransfers.h> |
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28 #ifdef MASSSTORAGE_PUBLISHER |
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29 #include <e32property.h> |
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30 #endif |
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31 #include "botmsctypes.h" |
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32 #include "msctypes.h" |
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33 #include "mscutils.h" |
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34 #include "mtransport.h" |
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35 #include "mprotocol.h" |
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36 #include "cusbifacehandler.h" |
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37 #include "cbulkonlytransport.h" |
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38 #include "debug.h" |
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39 #include "msdebug.h" |
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40 |
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41 CBulkOnlyTransport::CBulkOnlyTransport() |
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42 : iBulkOutCbwTd(KCbwPacketSize), |
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43 iBulkDataTd(KResponsePacketSize), |
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44 iBulkInCswTd(KCswPacketSize) |
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45 { |
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46 __MSFNLOG |
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47 } |
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48 |
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49 CBulkOnlyTransport::~CBulkOnlyTransport() |
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50 { |
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51 __MSFNLOG |
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52 delete iUsbInterfaceHandler; |
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53 UnInitialiseTransport(); |
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54 iInterface.Close(); |
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55 } |
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56 |
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57 /** |
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58 Create CBulkOnlyTransport object. |
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59 |
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60 @param aInterfaceId The interface ID of the device |
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61 |
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62 @return CBulkOnlyTransport* Pointer to the created object |
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63 */ |
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64 CBulkOnlyTransport* CBulkOnlyTransport::NewL(TUint aInterfaceId) |
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65 { |
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66 __MSFNSLOG |
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67 CBulkOnlyTransport* transport = new (ELeave) CBulkOnlyTransport(); |
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68 CleanupStack::PushL(transport); |
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69 transport->ConstructL(aInterfaceId); |
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70 CleanupStack::Pop(transport); |
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71 return transport; |
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72 } |
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73 |
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74 |
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75 void CBulkOnlyTransport::ConstructL(TUint aInterfaceId) |
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76 { |
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77 __MSFNSLOG |
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78 User::LeaveIfError(iInterface.Open(aInterfaceId)); |
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79 iUsbInterfaceHandler = CUsbInterfaceHandler::NewL(iInterface); |
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80 InitialiseTransport(); |
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81 } |
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82 |
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83 |
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84 void CBulkOnlyTransport::Resume() |
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85 { |
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86 __MSFNSLOG |
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87 __BOTPRINT(_L("BOT RESUME")); |
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88 User::AfterHighRes(1000 * 1000); // DEF126984 - we need delay here in order for the usb to resume properly in the case of cancelling a suspend |
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89 iInterface.CancelPermitSuspend(); |
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90 User::AfterHighRes(1000 * 1000); // DEF126984 - we need delay here in order for the usb to resume properly in the case of cancelling a suspend |
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91 } |
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92 |
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93 void CBulkOnlyTransport::Suspend(TRequestStatus &aStatus) |
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94 { |
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95 __MSFNSLOG |
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96 __BOTPRINT(_L("BOT SUSPEND")); |
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97 // iInterface.PermitRemoteWakeup(ETrue); |
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98 iInterface.PermitSuspendAndWaitForResume(aStatus); |
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99 } |
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100 |
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101 TInt CBulkOnlyTransport::InitialiseTransport() |
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102 { |
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103 __MSFNLOG |
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104 TInt BulkOutEpAddr; |
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105 TInt BulkInEpAddr; |
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106 const TUint8 KEpDirectionIn = 0x80; |
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107 const TUint8 KEpDirectionOut = 0x00; |
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108 const TUint8 KTransferTypeBulk = 0x02; |
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109 |
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110 GetEndpointAddress(iInterface,0,KTransferTypeBulk,KEpDirectionOut,BulkOutEpAddr); |
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111 GetEndpointAddress(iInterface,0,KTransferTypeBulk,KEpDirectionIn,BulkInEpAddr); |
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112 iInterface.OpenPipeForEndpoint(iBulkPipeOut, BulkOutEpAddr, EFalse); |
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113 iInterface.OpenPipeForEndpoint(iBulkPipeIn, BulkInEpAddr, EFalse); |
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114 |
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115 if (iInterface.RegisterTransferDescriptor(iBulkOutCbwTd) != KErrNone || |
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116 iInterface.RegisterTransferDescriptor(iBulkDataTd) != KErrNone || |
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117 iInterface.RegisterTransferDescriptor(iBulkInCswTd) != KErrNone) |
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118 { |
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119 return KErrGeneral; |
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120 } |
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121 |
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122 if (iInterface.InitialiseTransferDescriptors() != KErrNone) |
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123 { |
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124 return KErrGeneral; |
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125 } |
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126 return KErrNone; |
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127 } |
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128 |
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129 |
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130 void CBulkOnlyTransport::UnInitialiseTransport() |
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131 { |
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132 __MSFNLOG |
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133 iBulkPipeOut.Close(); |
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134 iBulkPipeIn.Close(); |
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135 } |
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136 |
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137 TInt CBulkOnlyTransport::GetEndpointAddress(RUsbInterface& aUsbInterface, |
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138 TInt aInterfaceSetting, |
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139 TUint8 aTransferType, |
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140 TUint8 aDirection, |
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141 TInt& aEndpointAddress) |
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142 { |
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143 __MSFNLOG |
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144 TUsbInterfaceDescriptor alternateInterfaceDescriptor; |
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145 |
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146 if (aUsbInterface.GetAlternateInterfaceDescriptor(aInterfaceSetting, alternateInterfaceDescriptor)) |
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147 { |
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148 __BOTPRINT1(_L("GetEndpointAddress : <Error> Unable to get alternate interface (%x) descriptor"),aInterfaceSetting); |
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149 return KErrGeneral; |
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150 } |
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151 |
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152 TUsbGenericDescriptor* descriptor = alternateInterfaceDescriptor.iFirstChild; |
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153 |
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154 while (descriptor) |
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155 { |
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156 TUsbEndpointDescriptor* endpoint = TUsbEndpointDescriptor::Cast(descriptor); |
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157 if (endpoint) |
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158 { |
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159 if ((endpoint->Attributes() & aTransferType) == aTransferType) |
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160 { |
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161 // Found the endpoint address |
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162 if ( (endpoint->EndpointAddress() & 0x80) == aDirection) |
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163 { |
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164 aEndpointAddress = endpoint->EndpointAddress(); |
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165 __BOTPRINT(_L("GetEndpointAddress : Endpoint address found")); |
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166 return KErrNone; |
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167 } |
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168 } |
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169 } |
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170 descriptor = descriptor->iNextPeer; |
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171 } |
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172 |
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173 // Unable to find the endpoint address |
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174 __BOTPRINT(_L("GetEndpointAddress : Unable to find endpoint address matching the specified attributes")); |
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175 return KErrNotFound; |
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176 } |
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177 |
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178 void CBulkOnlyTransport::GetMaxLun(TLun* aMaxLun, const RMessage2& aMessage) |
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179 { |
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180 __MSFNLOG |
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181 iUsbInterfaceHandler->GetMaxLun(aMaxLun, aMessage); |
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182 } |
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183 |
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184 TInt CBulkOnlyTransport::Reset() |
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185 { |
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186 __MSFNLOG |
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187 RUsbInterface::TUsbTransferRequestDetails reqDetails; |
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188 _LIT8(KNullDesC8,""); |
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189 |
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190 reqDetails.iRequestType = 0x21; |
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191 reqDetails.iRequest = 0xFF; |
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192 reqDetails.iValue = 0x0000; |
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193 reqDetails.iIndex = 0x0000; |
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194 reqDetails.iFlags = 0x04; // Short transfer OK |
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195 |
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196 iInterface.Ep0Transfer(reqDetails, KNullDesC8, (TDes8 &) KNullDesC8, iStatus); |
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197 User::WaitForRequest(iStatus); |
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198 __BOTPRINT1(_L("BOT RESET[%d]"), iStatus.Int()); |
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199 |
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200 if (iStatus.Int() != KErrNone) |
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201 { |
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202 return KErrGeneral; |
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203 } |
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204 |
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205 return KErrNone; |
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206 } |
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207 |
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208 void CBulkOnlyTransport::DoResetRecovery() |
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209 { |
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210 __MSFNLOG |
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211 |
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212 __BOTPRINT(_L("BOT RESET RECOVERY")); |
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213 #ifdef MASSSTORAGE_PUBLISHER |
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214 TMsPublisher publisher(TMsPublisher::KBotResetProperty); |
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215 #endif |
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216 Reset(); |
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217 iBulkPipeIn.ClearRemoteStall(); |
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218 iBulkPipeOut.ClearRemoteStall(); |
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219 } |
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220 |
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221 |
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222 void CBulkOnlyTransport::SendCbwL(const MClientCommandServiceReq* aReq, |
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223 TBotCbw::TCbwDirection aDirection, |
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224 TUint32 aTransferLength) |
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225 { |
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226 __MSFNLOG |
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227 __BOTPRINT1(_L("Cbw Tag=0x%x"), iCbwTag); |
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228 |
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229 iCbw.SetTag(iCbwTag++); |
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230 iCbw.SetDataTransferLength(aTransferLength); |
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231 iCbw.SetDataTransferDirection(aDirection); |
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232 iCbw.SetLun(iLun); |
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233 |
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234 TPtr8 buf = iBulkOutCbwTd.WritableBuffer(); |
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235 iCbw.EncodeL(buf, aReq); |
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236 |
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237 iBulkOutCbwTd.SaveData(buf.Length()); |
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238 iBulkPipeOut.Transfer(iBulkOutCbwTd, iStatus); |
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239 User::WaitForRequest(iStatus); |
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240 |
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241 TInt r = iStatus.Int(); |
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242 if (r != KErrNone) |
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243 { |
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244 if (r == KErrUsbStalled) |
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245 { |
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246 __BOTPRINT(_L("Cbw: BulkOut stalled")); |
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247 DoResetRecovery(); |
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248 } |
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249 __BOTPRINT1(_L("Usb transfer error %d"),r); |
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250 User::Leave(KErrGeneral); |
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251 } |
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252 } |
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253 |
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254 |
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255 void CBulkOnlyTransport::ReceiveCswL() |
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256 { |
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257 __MSFNLOG |
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258 iBulkInCswTd.SaveData(KCswPacketSize); |
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259 iBulkPipeIn.Transfer(iBulkInCswTd, iStatus); |
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260 User::WaitForRequest(iStatus); |
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261 |
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262 TInt r = iStatus.Int(); |
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263 if (r != KErrNone) |
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264 { |
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265 if (r == KErrUsbStalled) |
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266 { |
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267 __BOTPRINT(_L("Csw: Clearing BulkIn stall")); |
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268 iBulkPipeIn.ClearRemoteStall(); |
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269 iBulkInCswTd.SaveData(KCswPacketSize); |
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270 iBulkPipeIn.Transfer(iBulkInCswTd, iStatus); |
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271 User::WaitForRequest(iStatus); |
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272 #ifdef MASSSTORAGE_PUBLISHER |
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273 TMsPublisher publisher(TMsPublisher::KStallProperty); |
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274 #endif |
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275 r = iStatus.Int(); |
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276 if (r == KErrUsbStalled) |
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277 { |
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278 __BOTPRINT(_L("Csw: BulkIn stalled")); |
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279 DoResetRecovery(); |
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280 } |
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281 } |
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282 // Handle other usb error and retry failures |
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283 if (r != KErrNone) |
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284 { |
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285 __BOTPRINT1(_L("Usb transfer error %d"), r); |
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286 User::Leave(KErrGeneral); |
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287 } |
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288 } |
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289 |
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290 TPtrC8 data = iBulkInCswTd.Buffer(); |
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291 r = iCsw.Decode(data); |
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292 if (r != KErrNone) |
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293 { |
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294 __BOTPRINT(_L("Csw: Invalid")); |
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295 DoResetRecovery(); |
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296 User::Leave(KErrGeneral); |
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297 } |
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298 } |
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299 |
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300 |
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301 TInt CBulkOnlyTransport::SendControlCmdL(const MClientCommandServiceReq* aCommand) |
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302 { |
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303 __MSFNLOG |
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304 SendCbwL(aCommand, TBotCbw::EDataOut, 0); |
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305 ReceiveCswL(); |
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306 return ProcessZeroTransferL(); |
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307 } |
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308 |
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309 |
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310 TInt CBulkOnlyTransport::SendControlCmdL(const MClientCommandServiceReq* aCommand, |
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311 MClientCommandServiceResp* aResp) |
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312 { |
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313 __MSFNLOG |
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314 |
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315 SendCbwL(aCommand, TBotCbw::EDataIn, aResp->DataLength()); |
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316 |
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317 if (aResp->DataLength() > KResponsePacketSize) |
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318 { |
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319 __BOTPRINT(_L("Control command response length not supported")); |
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320 User::Leave(KErrGeneral); |
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321 } |
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322 |
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323 iBulkDataTd.SaveData(KResponsePacketSize); |
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324 iBulkPipeIn.Transfer(iBulkDataTd, iStatus); |
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325 User::WaitForRequest(iStatus); |
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326 TInt r = iStatus.Int(); |
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327 if (r != KErrNone) |
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328 { |
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329 if (r != KErrUsbStalled) |
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330 { |
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331 __BOTPRINT1(_L("Usb transfer error %d"),r); |
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332 User::Leave(KErrGeneral); |
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333 } |
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334 __BOTPRINT(_L("SendControlCmdL ClearRemoteStall")); |
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335 iBulkPipeIn.ClearRemoteStall(); |
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336 ReceiveCswL(); |
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337 return KErrCommandStalled; |
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338 } |
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339 TPtrC8 data = iBulkDataTd.Buffer(); |
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340 |
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341 ReceiveCswL(); |
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342 |
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343 TUint32 dataReceived = 0; |
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344 r = ProcessInTransferL(dataReceived); |
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345 if (!r) |
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346 { |
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347 |
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348 if (dataReceived == 0) |
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349 { |
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350 __BOTPRINT1(_L("Warning: No data received"), dataReceived); |
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351 return KErrCommandNotSupported; |
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352 } |
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353 |
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354 TRAP(r, aResp->DecodeL(data)); |
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355 } |
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356 return r; |
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357 } |
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358 |
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359 |
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360 TInt CBulkOnlyTransport::SendDataRxCmdL(const MClientCommandServiceReq* aCommand, |
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361 TDes8& aCopyBuf, |
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362 TInt& aLen) |
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363 { |
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364 __MSFNLOG |
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365 |
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366 TInt r = KErrNone; |
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367 SendCbwL(aCommand, TBotCbw::EDataIn, aLen); |
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368 |
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369 // store initial length as data is appended to the buffer |
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370 TInt startPos = aCopyBuf.Length(); |
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371 |
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372 TInt len = aLen; |
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373 |
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374 while (len) |
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375 { |
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376 if(len > KResponsePacketSize) |
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377 iBulkDataTd.SaveData(KResponsePacketSize); |
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378 else |
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379 iBulkDataTd.SaveData(len); |
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380 iBulkPipeIn.Transfer(iBulkDataTd, iStatus); |
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381 User::WaitForRequest(iStatus); |
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382 |
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383 r = iStatus.Int(); |
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384 if (r != KErrNone) |
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385 { |
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386 if (r == KErrUsbStalled) |
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387 { |
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388 __BOTPRINT(_L("SendDataRxCmdL ClearRemoteStall")); |
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389 iBulkPipeIn.ClearRemoteStall(); |
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390 #ifdef MASSSTORAGE_PUBLISHER |
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391 TMsPublisher publisher(TMsPublisher::KStallProperty); |
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392 #endif |
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393 break; |
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394 } |
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395 DoResetRecovery(); |
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396 __BOTPRINT1(_L("Usb transfer error %d"),r); |
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397 User::Leave(KErrGeneral); |
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398 } |
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399 |
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400 TPtrC8 data = iBulkDataTd.Buffer(); |
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401 aCopyBuf.Append(data.Ptr(), data.Length()); |
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402 if(len > KResponsePacketSize) |
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403 len -= KResponsePacketSize; |
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404 else |
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405 len = 0; |
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406 } |
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407 |
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408 ReceiveCswL(); |
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409 TUint32 lenReceived = 0; |
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410 |
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411 r = ProcessInTransferL(lenReceived); |
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412 aLen = lenReceived; |
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413 aCopyBuf.SetLength(startPos + lenReceived); |
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414 |
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415 return r; |
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416 } |
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417 |
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418 TInt CBulkOnlyTransport::SendDataTxCmdL(const MClientCommandServiceReq* aCommand, |
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419 TDesC8& aData, |
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420 TUint aPos, |
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421 TInt& aLen) |
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422 { |
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423 __MSFNLOG |
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424 TInt r = KErrNone; |
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425 |
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426 SendCbwL(aCommand, TBotCbw::EDataOut, aLen); |
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427 |
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428 TInt len = aLen; |
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429 TInt length = 0; |
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430 iBulkDataTd.SetZlpStatus(RUsbTransferDescriptor::ESuppressZlp); |
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431 while (len) |
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432 { |
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433 TPtr8 senddata = iBulkDataTd.WritableBuffer(); |
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434 senddata.Append(aData.Ptr() + length + aPos, len > KResponsePacketSize? KResponsePacketSize : len); |
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435 |
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436 iBulkDataTd.SaveData(senddata.Length()); |
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437 iBulkPipeOut.Transfer(iBulkDataTd, iStatus); |
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438 User::WaitForRequest(iStatus); |
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439 |
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440 if (iStatus.Int() != KErrNone) |
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441 { |
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442 if (iStatus.Int() == KErrUsbStalled) |
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443 { |
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444 __BOTPRINT(_L("SendDataTxCmdL ClearRemoteStall")); |
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445 iBulkPipeOut.ClearRemoteStall(); |
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446 #ifdef MASSSTORAGE_PUBLISHER |
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447 TMsPublisher publisher(TMsPublisher::KStallProperty); |
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448 #endif |
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449 break; |
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450 } |
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451 DoResetRecovery(); |
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452 __BOTPRINT1(_L("Usb transfer error %d"), r); |
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453 User::Leave(KErrGeneral); |
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454 } |
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455 |
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456 if(len > KResponsePacketSize) |
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457 { |
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458 len -= KResponsePacketSize; |
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459 length += KResponsePacketSize; |
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460 } |
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461 else |
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462 { |
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463 length += len; |
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464 len = 0; |
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465 } |
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466 } |
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467 |
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468 ReceiveCswL(); |
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469 |
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470 TUint32 lenSent = 0; |
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471 r = ProcessOutTransferL(lenSent); |
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472 aLen = lenSent; |
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473 |
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474 return r; |
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475 } |
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476 |
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477 |
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478 TInt CBulkOnlyTransport::ProcessZeroTransferL() |
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479 { |
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480 __MSFNLOG |
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481 // process 13 cases |
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482 |
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483 __ASSERT_DEBUG(iCbw.iDirection == TBotCbw::EDataOut, User::Invariant()); |
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484 __ASSERT_DEBUG(iCbw.iDataTransferLength == 0, User::Invariant()); |
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485 |
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486 // Hn - Host expects no data transfers |
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487 if (!iCsw.IsValidCsw(iCbw.iTag)) |
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488 { |
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489 __BOTPRINT(_L("BOT CSW Invalid")); |
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490 DoResetRecovery(); |
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491 User::Leave(KErrGeneral); |
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492 } |
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493 if (!iCsw.IsMeaningfulCsw(iCbw.iDataTransferLength)) |
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494 { |
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495 __BOTPRINT(_L("BOT CSW not meaningful")); |
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496 DoResetRecovery(); |
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497 User::Leave(KErrGeneral); |
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498 } |
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499 |
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500 if (iCsw.iStatus == TBotCsw::EPhaseError) |
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501 { |
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502 // Case (2) or (3) |
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503 __BOTPRINT(_L("BOT Phase Error")); |
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504 // Reset Recovery |
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505 DoResetRecovery(); |
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506 User::Leave(KErrGeneral); |
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507 } |
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508 |
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509 if (iCsw.iDataResidue != 0) |
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510 { |
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511 // should not happen |
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512 __BOTPRINT(_L("BOT Residue is invalid!")); |
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513 // Reset Recovery |
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514 DoResetRecovery(); |
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515 User::Leave(KErrGeneral); |
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516 } |
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517 |
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518 // all ok if here |
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519 return (iCsw.iStatus == TBotCsw::ECommandPassed) ? KErrNone : KErrCommandFailed; |
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520 } |
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521 |
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522 |
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523 TInt CBulkOnlyTransport::ProcessInTransferL(TUint32& aDataReceived) |
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524 { |
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525 __MSFNLOG |
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526 aDataReceived = 0; |
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527 // process 13 cases |
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528 |
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529 __ASSERT_DEBUG(iCbw.iDirection == TBotCbw::EDataIn, User::Invariant()); |
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530 |
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531 // Hi - Host expects to receive data from the device |
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532 if (!iCsw.IsValidCsw(iCbw.iTag)) |
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533 { |
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534 __BOTPRINT(_L("BOT CSW Invalid")); |
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535 DoResetRecovery(); |
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536 User::Leave(KErrGeneral); |
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537 } |
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538 if (!iCsw.IsMeaningfulCsw(iCbw.iDataTransferLength)) |
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539 { |
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540 __BOTPRINT(_L("BOT CSW not meaningful")); |
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541 DoResetRecovery(); |
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542 User::Leave(KErrGeneral); |
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543 } |
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544 |
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545 |
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546 if (iCsw.iStatus == TBotCsw::EPhaseError) |
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547 { |
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548 __BOTPRINT(_L("BOT Phase Error")); |
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549 // Case (7) or (8) |
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550 // Reset Recovery |
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551 DoResetRecovery(); |
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552 User::Leave(KErrGeneral); |
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553 } |
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554 |
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555 // all ok if here |
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556 // Case (4), (5) or (6) |
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557 aDataReceived = iCbw.iDataTransferLength - iCsw.iDataResidue; |
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558 return (iCsw.iStatus == TBotCsw::ECommandPassed) ? KErrNone : KErrCommandFailed; |
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559 } |
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560 |
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561 |
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562 TInt CBulkOnlyTransport::ProcessOutTransferL(TUint32& aDataReceived) |
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563 { |
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564 __MSFNLOG |
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565 aDataReceived = 0; |
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566 // process 13 cases |
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567 |
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568 __ASSERT_DEBUG(iCbw.iDirection == TBotCbw::EDataOut, User::Invariant()); |
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569 |
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570 // Ho - Host expects to send data to the device |
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571 if (!iCsw.IsValidCsw(iCbw.iTag)) |
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572 { |
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573 __BOTPRINT(_L("BOT CSW Invalid")); |
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574 DoResetRecovery(); |
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575 User::Leave(KErrGeneral); |
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576 } |
|
577 if (!iCsw.IsMeaningfulCsw(iCbw.iDataTransferLength)) |
|
578 { |
|
579 __BOTPRINT(_L("BOT CSW not meaningful")); |
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580 DoResetRecovery(); |
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581 User::Leave(KErrGeneral); |
|
582 } |
|
583 |
|
584 if (iCsw.iStatus == TBotCsw::EPhaseError) |
|
585 { |
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586 __BOTPRINT(_L("BOT Phase Error")); |
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587 // Case (10) or (13) |
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588 // Reset Recovery |
|
589 DoResetRecovery(); |
|
590 User::Leave(KErrGeneral); |
|
591 } |
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592 |
|
593 // all ok if here |
|
594 // Case (9), (11) or (12) |
|
595 aDataReceived = iCbw.iDataTransferLength - iCsw.iDataResidue; |
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596 return (iCsw.iStatus == TBotCsw::ECommandPassed) ? KErrNone : KErrCommandFailed; |
|
597 } |
|
598 |
|
599 |
|
600 void CBulkOnlyTransport::SetLun(TLun aLun) |
|
601 { |
|
602 __MSFNLOG |
|
603 iLun = aLun; |
|
604 __BOTPRINT1(_L("CBulkOnlyTransport::SetLun(%d)"), aLun) |
|
605 } |
|
606 |
|
607 |
|
608 /** |
|
609 Encode CBW into the supplied buffer. The command is also encoded using the |
|
610 supplied encoding method of MClientCommandServiceReq. |
|
611 |
|
612 @param aBuffer The buffer to copy the encoded stream in to |
|
613 @param aCommand The command to be encoded into the Command Block field |
|
614 */ |
|
615 void TBotCbw::EncodeL(TPtr8 &aBuffer, const MClientCommandServiceReq* aCommand) const |
|
616 { |
|
617 __MSFNSLOG |
|
618 aBuffer.SetLength(KCbwLength); |
|
619 |
|
620 TPtr8 commandBlock = aBuffer.MidTPtr(TBotCbw::KCbwCbOffset); |
|
621 |
|
622 aBuffer.FillZ(); |
|
623 |
|
624 TInt cbLength = aCommand->EncodeRequestL(commandBlock); |
|
625 |
|
626 TUint8* ptr = (TUint8 *) aBuffer.Ptr(); |
|
627 LittleEndian::Put32(&ptr[KCbwSignatureOffset], 0x43425355); |
|
628 LittleEndian::Put32(&ptr[KCbwTagOffset], iTag); |
|
629 LittleEndian::Put32(&ptr[KCbwDataTransferLengthOffset], iDataTransferLength); |
|
630 aBuffer[KCbwFlagOffset] = (iDirection == EDataOut) ? 0x00 : 0x80; |
|
631 aBuffer[KCbwLunOffset] = iLun; |
|
632 aBuffer[KCbwCbLengthOffset] = cbLength; |
|
633 __BOTPRINT1(_L("BOT TBotCbw::Encode Lun=%d"), iLun); |
|
634 } |
|
635 |
|
636 |
|
637 /** |
|
638 Decode stream into TBotCsw. |
|
639 |
|
640 @param aPtr A buffer containing CSW stream |
|
641 */ |
|
642 TInt TBotCsw::Decode(const TDesC8& aPtr) |
|
643 { |
|
644 __MSFNLOG |
|
645 if (aPtr.Length() != KCswLength) |
|
646 { |
|
647 __BOTPRINT1(_L("Invalid CSW length %d"), aPtr.Length()); |
|
648 return KErrGeneral; |
|
649 } |
|
650 |
|
651 iSignature = LittleEndian::Get32(&aPtr[KCswSignatureOffset]); |
|
652 iTag = LittleEndian::Get32(&aPtr[KCswTagOffset]); |
|
653 iDataResidue = LittleEndian::Get32(&aPtr[KCswDataResidueOffset]); |
|
654 |
|
655 TInt status = aPtr[KCswStatusOffset]; |
|
656 iStatus = static_cast<TCswStatus>(status); |
|
657 __BOTPRINT1(_L("BOT CSW Status = %d"), iStatus); |
|
658 return KErrNone; |
|
659 } |
|
660 |
|
661 |
|
662 /** |
|
663 Checks that CSW contents are valid, USB Mass Storage Class Bulk-Only |
|
664 Transport 6.3. |
|
665 |
|
666 @param aTag The tag value received from the device |
|
667 |
|
668 @return TBool Return ETrue if valid else EFalse |
|
669 */ |
|
670 TBool TBotCsw::IsValidCsw(TUint32 aTag) const |
|
671 { |
|
672 __MSFNSLOG |
|
673 if (iSignature != 0x53425355) |
|
674 { |
|
675 return EFalse; |
|
676 } |
|
677 if (iTag != aTag) |
|
678 { |
|
679 return EFalse; |
|
680 } |
|
681 return ETrue; |
|
682 } |
|
683 |
|
684 |
|
685 /** |
|
686 Checks that CSW contents are meaningful, USB Mass Storage Class Bulk-Only |
|
687 Transport 6.3. |
|
688 |
|
689 @param aTransferLength Number of bytes transferred |
|
690 |
|
691 @return TBool Return ETrue if meaningful else EFalse |
|
692 */ |
|
693 TBool TBotCsw::IsMeaningfulCsw(TUint32 aTransferLength) const |
|
694 { |
|
695 __MSFNSLOG |
|
696 if (iStatus != EPhaseError) |
|
697 { |
|
698 if (iDataResidue > aTransferLength) |
|
699 { |
|
700 return EFalse; |
|
701 } |
|
702 } |
|
703 return ETrue; |
|
704 } |
|
705 |
|
706 #ifdef MASSSTORAGE_PUBLISHER |
|
707 TMsPublisher::TMsPublisher(TPropertyKeys aKey) |
|
708 { |
|
709 RProperty prop; |
|
710 |
|
711 const TUid KUidHostMassStorageCategory = {KMyUid}; |
|
712 |
|
713 TInt ret = prop.Attach(KUidHostMassStorageCategory, aKey); |
|
714 __BOTPRINT2(_L("Property Key[%d] attach ret=%d"), aKey, ret); |
|
715 if (ret == KErrNone) |
|
716 { |
|
717 TInt flag; |
|
718 ret = prop.Get(KUidHostMassStorageCategory, aKey, flag); |
|
719 if (ret == KErrNone) |
|
720 { |
|
721 flag++; |
|
722 ret = prop.Set(KUidHostMassStorageCategory, aKey, flag); |
|
723 } |
|
724 __BOTPRINT3(_L("Property Set[%d] ret=%d Counter=%d"), aKey, ret, flag); |
|
725 prop.Close(); |
|
726 } |
|
727 } |
|
728 |
|
729 #endif |
|
730 |