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1 // Copyright (c) 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 |
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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 <e32base.h> |
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24 #include <d32usbc.h> |
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25 |
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26 #include "mstypes.h" |
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27 #include "msctypes.h" |
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28 #include "usbmsclientpanic.h" |
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29 #include "botmsctypes.h" |
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30 #include "testman.h" |
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31 #include "botmscserver.h" |
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32 |
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33 #include "mserverprotocol.h" |
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34 #include "mdevicetransport.h" |
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35 |
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36 #include "mstypes.h" |
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37 #include "botcontrolinterface.h" |
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38 #include "debug.h" |
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39 #include "msdebug.h" |
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40 #include "cusbmassstorageserver.h" |
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41 #include "cusbmassstoragecontroller.h" |
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42 #include "drivemanager.h" |
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43 #include "cbulkonlytransport.h" |
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44 |
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45 #define KInEndpoint EEndpoint1 |
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46 #define KOutEndpoint EEndpoint2 |
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47 |
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48 |
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49 //------------------------------------- |
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50 /** |
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51 Create CBulkOnlyTransport object |
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52 @param aNumDrives - The number of drives available for MS |
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53 @param aController - reference to the parent |
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54 @return pointer to newly created object |
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55 */ |
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56 CBulkOnlyTransport* CBulkOnlyTransport::NewL(TInt aNumDrives, |
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57 CUsbMassStorageController& aController) |
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58 { |
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59 __MSFNSLOG |
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60 if (aNumDrives <=0 || static_cast<TUint>(aNumDrives) > KUsbMsMaxDrives) |
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61 { |
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62 User::Leave(KErrArgument); |
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63 } |
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64 CBulkOnlyTransport* self = new(ELeave) CBulkOnlyTransport(aNumDrives, aController); |
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65 CleanupStack::PushL(self); |
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66 self->ConstructL(); |
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67 CleanupStack::Pop(self); |
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68 return self; |
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69 } |
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70 |
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71 #ifdef MSDC_TESTMODE |
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72 CBulkOnlyTransport* CBulkOnlyTransport::NewL(TInt aNumDrives, |
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73 CUsbMassStorageController& aController, |
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74 TTestParser* aTestParser) |
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75 { |
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76 __MSFNSLOG |
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77 if (aNumDrives <=0 || static_cast<TUint>(aNumDrives) > KUsbMsMaxDrives) |
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78 { |
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79 User::Leave(KErrArgument); |
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80 } |
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81 CBulkOnlyTransport* self = new(ELeave) CBulkOnlyTransport(aNumDrives, |
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82 aController, |
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83 aTestParser); |
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84 CleanupStack::PushL(self); |
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85 self->ConstructL(); |
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86 CleanupStack::Pop(self); |
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87 return self; |
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88 } |
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89 #endif |
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90 |
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91 |
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92 /** |
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93 c'tor |
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94 @param aNumDrives - The number of drives available for MS |
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95 @param aController - reference to the parent |
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96 */ |
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97 CBulkOnlyTransport::CBulkOnlyTransport(TInt aNumDrives, |
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98 CUsbMassStorageController& aController): |
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99 CActive(EPriorityStandard), |
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100 iMaxLun(aNumDrives-1), |
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101 iController(aController), |
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102 iStallAllowed(ETrue) |
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103 { |
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104 __MSFNLOG |
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105 } |
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106 |
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107 #ifdef MSDC_TESTMODE |
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108 CBulkOnlyTransport::CBulkOnlyTransport(TInt aNumDrives, |
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109 CUsbMassStorageController& aController, |
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110 TTestParser* aTestParser) |
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111 : CActive(EPriorityStandard), |
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112 iMaxLun(aNumDrives-1), |
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113 iController(aController), |
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114 iStallAllowed(ETrue), |
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115 iTestParser(aTestParser) |
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116 { |
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117 __MSFNLOG |
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118 } |
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119 #endif |
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120 |
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121 |
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122 /** |
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123 Constructs the CBulkOnlyTranspor object |
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124 */ |
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125 void CBulkOnlyTransport::ConstructL() |
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126 { |
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127 __MSFNLOG |
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128 iBotControlInterface = CBotControlInterface::NewL(*this); |
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129 iDeviceStateNotifier = CActiveDeviceStateNotifier::NewL(*this); |
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130 CActiveScheduler::Add(this); |
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131 } |
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132 |
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133 |
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134 /** |
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135 Destructor |
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136 */ |
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137 CBulkOnlyTransport::~CBulkOnlyTransport() |
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138 { |
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139 __MSFNLOG |
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140 if (iInterfaceConfigured) |
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141 { |
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142 Stop(); |
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143 } |
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144 delete iBotControlInterface; |
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145 delete iDeviceStateNotifier; |
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146 } |
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147 |
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148 |
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149 /** |
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150 Set or unset configuration descriptor for USB MassStorage Bulk Only transport |
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151 |
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152 @param aUnset indicate whether set or unset descriptor |
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153 @return KErrNone if operation was completed successfully, errorcode otherwise |
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154 */ |
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155 TInt CBulkOnlyTransport::SetupConfigurationDescriptor(TBool aUnset) |
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156 { |
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157 __MSFNLOG |
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158 TInt ret(KErrNone); |
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159 TInt configDescriptorSize(0); |
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160 |
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161 iLdd.GetConfigurationDescriptorSize(configDescriptorSize); |
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162 if (static_cast<TUint>(configDescriptorSize) != KUsbDescSize_Config) |
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163 { |
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164 return KErrCorrupt; |
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165 } |
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166 |
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167 TBuf8<KUsbDescSize_Config> configDescriptor; |
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168 ret = iLdd.GetConfigurationDescriptor(configDescriptor); |
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169 if (ret != KErrNone) |
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170 { |
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171 return ret; |
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172 } |
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173 |
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174 // I beleive that other fields setted up during LDD initialisation |
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175 if (aUnset) |
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176 { |
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177 --configDescriptor[KUsbNumInterfacesOffset]; |
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178 } |
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179 else |
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180 { |
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181 ++configDescriptor[KUsbNumInterfacesOffset]; |
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182 } |
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183 ret = iLdd.SetConfigurationDescriptor(configDescriptor); |
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184 |
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185 return ret; |
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186 } |
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187 |
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188 |
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189 /** |
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190 Set up interface descriptor |
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191 |
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192 @return KErrNone if operation was completed successfully, errorcode otherwise |
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193 */ |
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194 TInt CBulkOnlyTransport::SetupInterfaceDescriptors() |
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195 { |
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196 __MSFNLOG |
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197 // Device caps |
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198 TUsbDeviceCaps d_caps; |
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199 TInt ret = iLdd.DeviceCaps(d_caps); |
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200 if (ret != KErrNone) |
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201 { |
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202 return ret; |
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203 } |
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204 TInt totalEndpoints = d_caps().iTotalEndpoints; |
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205 if (totalEndpoints < KRequiredNumberOfEndpoints) |
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206 { |
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207 return KErrHardwareNotAvailable; |
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208 } |
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209 |
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210 // Endpoint caps |
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211 TUsbcEndpointData data[KUsbcMaxEndpoints]; |
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212 TPtr8 dataptr(reinterpret_cast<TUint8*>(data), sizeof(data), sizeof(data)); |
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213 ret = iLdd.EndpointCaps(dataptr); |
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214 if (ret != KErrNone) |
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215 { |
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216 return ret; |
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217 } |
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218 |
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219 // Set the active interface |
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220 TUsbcInterfaceInfoBuf ifc; |
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221 TInt ep_found = 0; |
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222 TBool foundBulkIN = EFalse; |
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223 TBool foundBulkOUT = EFalse; |
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224 |
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225 for (TInt i = 0; i < totalEndpoints ; i++) |
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226 { |
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227 const TUsbcEndpointCaps* caps = &data[i].iCaps; |
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228 const TInt maxPacketSize = caps->MaxPacketSize(); |
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229 if (!foundBulkIN && |
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230 (caps->iTypesAndDir & (KUsbEpTypeBulk | KUsbEpDirIn)) == (KUsbEpTypeBulk | KUsbEpDirIn)) |
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231 { |
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232 // KInEndpoint is going to be our TX (IN, write) endpoint |
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233 ifc().iEndpointData[0].iType = KUsbEpTypeBulk; |
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234 ifc().iEndpointData[0].iDir = KUsbEpDirIn; |
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235 ifc().iEndpointData[0].iSize = maxPacketSize; |
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236 ifc().iEndpointData[0].iInterval_Hs = 0; |
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237 foundBulkIN = ETrue; |
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238 if (++ep_found == KRequiredNumberOfEndpoints) |
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239 { |
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240 break; |
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241 } |
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242 continue; |
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243 } |
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244 if (!foundBulkOUT && |
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245 (caps->iTypesAndDir & (KUsbEpTypeBulk | KUsbEpDirOut)) == (KUsbEpTypeBulk | KUsbEpDirOut)) |
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246 { |
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247 // KOutEndpoint is going to be our RX (OUT, read) endpoint |
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248 ifc().iEndpointData[1].iType = KUsbEpTypeBulk; |
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249 ifc().iEndpointData[1].iDir = KUsbEpDirOut; |
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250 ifc().iEndpointData[1].iSize = maxPacketSize; |
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251 ifc().iEndpointData[1].iInterval_Hs = 0; |
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252 foundBulkOUT = ETrue; |
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253 if (++ep_found == KRequiredNumberOfEndpoints) |
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254 { |
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255 break; |
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256 } |
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257 continue; |
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258 } |
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259 } |
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260 if (ep_found != KRequiredNumberOfEndpoints) |
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261 { |
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262 return KErrHardwareNotAvailable; |
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263 } |
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264 |
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265 _LIT16(string, "USB Mass Storage Interface"); |
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266 ifc().iString = const_cast<TDesC16*>(&string); |
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267 ifc().iTotalEndpointsUsed = KRequiredNumberOfEndpoints; |
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268 ifc().iClass.iClassNum = 0x08; // Mass Storage |
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269 ifc().iClass.iSubClassNum = 0x06; // SCSI Transparent Command Set |
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270 ifc().iClass.iProtocolNum = 0x50; // Bulk Only Transport |
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271 |
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272 TUint bandwidth_priority = (EUsbcBandwidthOUTDefault | EUsbcBandwidthINDefault); |
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273 if (d_caps().iHighSpeed) |
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274 { |
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275 // If this device supports USB High-speed, then we request 64KB buffers |
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276 // (otherwise the default 4KB ones will do). |
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277 bandwidth_priority = (EUsbcBandwidthOUTPlus2 | EUsbcBandwidthINPlus2); |
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278 // Also, tell the Protocol about it, because it might want to do some |
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279 // optimizing too. |
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280 iProtocol->ReportHighSpeedDevice(); |
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281 } |
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282 ret = iLdd.SetInterface(0, ifc, bandwidth_priority); |
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283 return ret; |
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284 } |
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285 |
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286 |
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287 /** |
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288 Called by the protocol after processing the packet to indicate that more data is required. |
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289 |
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290 @param aData reference to the data buffer. |
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291 */ |
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292 void CBulkOnlyTransport::SetupDataOut(TPtr8& aData) |
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293 { |
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294 __MSFNLOG |
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295 iDataTransferMan.SetModeDataOut(aData); |
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296 } |
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297 |
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298 /** |
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299 Called by the protocol after processing the packet to indicate that data should be written to the host. |
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300 |
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301 @param aData reference to the data buffer. |
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302 */ |
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303 void CBulkOnlyTransport::SetupDataIn(TPtrC8& aData) |
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304 { |
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305 iDataTransferMan.SetModeDataIn(aData); |
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306 } |
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307 |
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308 |
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309 TInt CBulkOnlyTransport::Start() |
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310 { |
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311 __MSFNLOG |
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312 TInt err = KErrNone; |
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313 |
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314 if (!iProtocol) |
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315 { |
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316 return KErrBadHandle; //protocol should be set up before start |
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317 } |
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318 |
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319 if (IsActive()) |
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320 { |
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321 __PRINT(_L("CBulkOnlyTransport::Start - active before start!\n")); |
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322 return KErrInUse; |
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323 } |
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324 |
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325 if ((err = iLdd.Open(0)) != KErrNone || |
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326 (err = SetupConfigurationDescriptor()) != KErrNone || |
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327 (err = SetupInterfaceDescriptors()) != KErrNone ) |
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328 { |
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329 __PRINT(_L("CBulkOnlyTransport::Start - Error during descriptors setup!\n")); |
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330 return err; |
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331 } |
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332 |
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333 iDeviceStateNotifier->Activate(); // activate notifier wich will wait until USB became configured |
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334 TUsbcDeviceState deviceStatus = EUsbcDeviceStateDefault; |
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335 err = iLdd.DeviceStatus(deviceStatus); |
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336 __PRINT1(_L("CBulkOnlyTransport::Start - Device status = %d\n"), deviceStatus); |
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337 if (err == KErrNone && deviceStatus == EUsbcDeviceStateConfigured) |
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338 { |
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339 __PRINT(_L("CBulkOnlyTransport::Start - Starting bulk only transport\n")); |
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340 err = HwStart(); |
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341 } |
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342 iInterfaceConfigured = ETrue; |
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343 return err; |
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344 } |
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345 |
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346 TInt CBulkOnlyTransport::HwStart(TBool aDiscard) |
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347 { |
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348 __MSFNLOG |
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349 |
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350 TInt lun = MaxLun(); |
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351 do |
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352 { |
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353 Controller().DriveManager().Connect(lun); |
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354 } |
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355 while(--lun >= 0); |
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356 |
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357 TInt res = iBotControlInterface->Start() ; |
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358 |
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359 iCurrentState = ENone; |
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360 iDataTransferMan.Init(); |
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361 iStarted = ETrue; |
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362 |
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363 // Set up DMA if possible (errors are non-critical) |
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364 TInt err = iLdd.AllocateEndpointResource(KOutEndpoint, EUsbcEndpointResourceDMA); |
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365 if (err != KErrNone) |
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366 { |
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367 __PRINT1(_L("Set DMA on OUT endpoint failed with error code: %d"), err); |
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368 } |
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369 err = iLdd.AllocateEndpointResource(KInEndpoint, EUsbcEndpointResourceDMA); |
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370 if (err != KErrNone) |
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371 { |
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372 __PRINT1(_L("Set DMA on IN endpoint failed with error code: %d"), err); |
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373 } |
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374 |
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375 // Set up Double Buffering if possible (errors are non-critical) |
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376 err = iLdd.AllocateEndpointResource(KOutEndpoint, EUsbcEndpointResourceDoubleBuffering); |
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377 if (err != KErrNone) |
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378 { |
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379 __PRINT1(_L("Set Double Buffering on OUT endpoint failed with error code: %d"), err); |
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380 } |
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381 err = iLdd.AllocateEndpointResource(KInEndpoint, EUsbcEndpointResourceDoubleBuffering); |
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382 if (err != KErrNone) |
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383 { |
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384 __PRINT1(_L("Set Double Buffering on IN endpoint failed with error code: %d"), err); |
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385 } |
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386 |
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387 if (aDiscard) |
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388 { |
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389 TInt bytes; |
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390 const TInt err = iLdd.QueryReceiveBuffer(KOutEndpoint, bytes); |
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391 if (err != KErrNone || bytes <= 0) |
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392 { |
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393 __PRINT1(_L("Error: err=%d bytes=%d"), bytes); |
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394 } |
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395 else |
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396 { |
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397 __PRINT1(_L("RxBuffer has %d bytes"), bytes); |
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398 FlushDataOut(bytes); |
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399 } |
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400 } |
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401 |
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402 ClientReadCbw(); |
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403 return res; |
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404 } |
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405 |
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406 |
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407 void CBulkOnlyTransport::HwStop() |
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408 { |
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409 __MSFNLOG |
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410 if (iStarted) |
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411 { |
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412 iController.DriveManager().Disconnect(); |
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413 Cancel(); |
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414 iBotControlInterface->Cancel(); |
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415 iProtocol->Cancel(); |
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416 iStarted = EFalse; |
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417 } |
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418 } |
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419 |
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420 |
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421 void CBulkOnlyTransport::HwSuspend() |
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422 { |
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423 __MSFNLOG |
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424 iController.DriveManager().Disconnect(); |
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425 } |
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426 |
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427 |
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428 void CBulkOnlyTransport::HwResume() |
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429 { |
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430 __MSFNLOG |
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431 iController.DriveManager().Connect(); |
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432 } |
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433 |
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434 |
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435 /** |
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436 Stops the Bulk Only Transport |
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437 */ |
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438 TInt CBulkOnlyTransport::Stop() |
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439 { |
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440 __MSFNLOG |
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441 iBotControlInterface->Cancel(); |
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442 iDeviceStateNotifier->Cancel(); |
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443 Cancel(); |
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444 if (iInterfaceConfigured) |
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445 { |
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446 iLdd.ReleaseInterface(0); |
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447 SetupConfigurationDescriptor(ETrue); |
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448 iLdd.Close(); |
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449 } |
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450 iCurrentState = ENone; |
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451 iInterfaceConfigured = EFalse; |
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452 |
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453 return KErrNone; |
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454 } |
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455 |
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456 |
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457 /** |
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458 Read aLength bytes of data from the host into the read buffer. |
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459 @param aLength The number of bytes to read from the host. |
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460 */ |
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461 void CBulkOnlyTransport::ClientReadCbw() |
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462 { |
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463 __MSFNLOG |
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464 if (IsActive()) |
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465 { |
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466 __PRINT(_L("Still active\n")); |
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467 __ASSERT_DEBUG(EFalse, User::Panic(KUsbMsClientPanicCat, EMsBulkOnlyStillActive)); |
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468 return; |
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469 } |
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470 |
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471 ReadCbw(); |
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472 } |
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473 |
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474 |
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475 void CBulkOnlyTransport::ReadCbw() |
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476 { |
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477 __MSFNLOG |
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478 iCbwBuf.SetMax(); |
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479 iLdd.ReadUntilShort(iStatus, KOutEndpoint, iCbwBuf, iCbwBuf.Length()); |
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480 iCurrentState = EWaitForCBW; |
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481 SetActive(); |
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482 } |
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483 |
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484 |
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485 void CBulkOnlyTransport::DoCancel() |
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486 { |
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487 __MSFNLOG |
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488 iLdd.WriteCancel(KInEndpoint); |
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489 iLdd.ReadCancel(KOutEndpoint); |
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490 } |
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491 |
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492 |
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493 void CBulkOnlyTransport::Activate(TInt aReason) |
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494 { |
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495 __MSFNLOG |
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496 SetActive(); |
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497 TRequestStatus* r = &iStatus; |
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498 User::RequestComplete(r, aReason); |
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499 } |
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500 |
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501 |
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502 void CBulkOnlyTransport::RunL() |
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503 { |
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504 __MSFNLOG |
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505 if (iStatus != KErrNone) |
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506 { |
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507 __PRINT1(_L("Error %d in RunL, halt endpoints \n"), iStatus.Int()); |
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508 SetPermError(); //halt endpoints for reset recovery |
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509 return; |
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510 } |
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511 |
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512 switch (iCurrentState) |
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513 { |
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514 case EWaitForCBW: |
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515 __PRINT(_L("EWaitForCBW")); |
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516 TRAPD(err, DecodeCbwL()); |
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517 if (err) |
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518 { |
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519 // CBW not valid or meaningful |
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520 // Specification says: "If the CBW is not valid, the device |
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521 // shall STALL the Bulk-In pipe. Also, the device shall either |
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522 // STALL the Bulk-Out pipe, or the device shall accept and |
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523 // discard any Bulk-Out data. The device shall maintain this |
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524 // state until a Reset Recovery." Here we keep bulk-in ep |
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525 // stalled and ignore bulk-out ep. |
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526 SetPermError(); |
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527 return; |
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528 } |
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529 break; |
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530 |
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531 case EHandleDataIn: |
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532 { |
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533 __PRINT(_L("EHandleDataIn")); |
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534 iDataTransferMan.SetModeNoData(); |
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535 |
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536 if (iDataTransferMan.iDataResidue && iStallAllowed) |
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537 { |
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538 StallEndpointAndWaitForClear(KInEndpoint); |
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539 } |
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540 #ifdef MSDC_TESTMODE |
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541 if (iTestParser && iTestParser->Enabled()) |
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542 { |
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543 if (iTestParser->TestCase() == TTestParser::ETestCaseDiStallCsw) |
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544 { |
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545 iTestParser->ClrTestCase(); |
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546 __TESTMODEPRINT1("CBW Tag=0x%x: Stalling CSW Data-In", iCbwTag); |
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547 StallEndpointAndWaitForClear(KInEndpoint); |
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548 } |
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549 } |
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550 #endif |
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551 SendCsw(iCbwTag, iDataTransferMan.iDataResidue, iCmdStatus); |
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552 } |
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553 break; |
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554 |
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555 case EHandleDataOut: |
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556 { |
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557 TUint bytesWritten; |
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558 TInt ret = iProtocol->MediaWritePacket(bytesWritten); |
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559 iDataTransferMan.iDataResidue -= bytesWritten; |
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560 |
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561 switch(ret) |
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562 { |
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563 case KErrCompletion: |
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564 { |
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565 // The protocol has indicated with KErrCompletion that |
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566 // sufficient data is available in the buffer to process the |
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567 // transfer immediately. |
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568 |
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569 TInt deviceDataLength = iDataTransferMan.iReadBuf.Length(); |
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570 iLdd.Read(iStatus, KOutEndpoint, iDataTransferMan.iReadBuf, deviceDataLength); |
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571 SetActive(); |
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572 } |
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573 break; |
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574 case KErrNotReady: |
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575 { |
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576 // The protocol has indicated with KErrNotReady that |
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577 // insufficient data is available in the buffer, so should wait |
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578 // for it to arrive. |
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579 TInt deviceDataLength = iDataTransferMan.iReadBuf.Length(); |
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580 iLdd.Read(iStatus, KOutEndpoint, iDataTransferMan.iReadBuf, deviceDataLength); |
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581 SetActive(); |
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582 } |
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583 break; |
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584 case KErrAbort: |
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585 { |
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586 iDataTransferMan.SetModeNoData(); |
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587 iCmdStatus = TBotCsw::ECommandFailed; |
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588 if (iDataTransferMan.iDataResidue) |
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589 { |
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590 __PRINT(_L("Discarding residue")); |
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591 FlushDataOut(iDataTransferMan.iTransportResidue); |
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592 } |
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593 SendCsw(iCbwTag, iDataTransferMan.iDataResidue, iCmdStatus); |
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594 } |
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595 break; |
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596 |
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597 case KErrNone: |
|
598 default: |
|
599 { |
|
600 // The protocol has indicated that transfer is complete, so |
|
601 // send the CSW response to the host. |
|
602 iDataTransferMan.SetModeNoData(); |
|
603 #ifdef MSDC_TESTMODE |
|
604 if (iDataTransferMan.iDataResidue) |
|
605 { |
|
606 TBool done = EFalse; |
|
607 if (iTestParser && iTestParser->Enabled()) |
|
608 { |
|
609 TInt testCase = iTestParser->TestCase(); |
|
610 if (testCase == TTestParser::ETestCaseDoStallCsw) |
|
611 { |
|
612 iTestParser->ClrTestCase(); |
|
613 __TESTMODEPRINT1("CBW Tag=0x%x: Stalling CSW Data-Out", iCbwTag); |
|
614 StallEndpointAndWaitForClear(KInEndpoint); |
|
615 done = ETrue; |
|
616 } |
|
617 } |
|
618 if (!done) |
|
619 { |
|
620 __PRINT(_L("Discarding residue")); |
|
621 // we have to read as much data as available that host PC |
|
622 // sends; otherwise, bulk-out endpoint will need to keep |
|
623 // sending NAK back. |
|
624 FlushDataOut(iDataTransferMan.iDataResidue); |
|
625 __TESTMODEPRINT2("CBW Tag=0x%x: Residue = x%x", |
|
626 iCbwTag, iDataTransferMan.iDataResidue); |
|
627 } |
|
628 } |
|
629 else |
|
630 { |
|
631 if (iTestParser && iTestParser->Enabled()) |
|
632 { |
|
633 TInt testCase = iTestParser->TestCase(); |
|
634 if (testCase == TTestParser::ETestCaseDoStallCsw) |
|
635 { |
|
636 iTestParser->ClrTestCase(); |
|
637 __TESTMODEPRINT1("CBW Tag=0x%x: Stalling CSW Data-Out", iCbwTag); |
|
638 StallEndpointAndWaitForClear(KInEndpoint); |
|
639 } |
|
640 } |
|
641 } |
|
642 |
|
643 #else |
|
644 if (iDataTransferMan.iDataResidue) |
|
645 { |
|
646 __PRINT(_L("Discarding residue")); |
|
647 // we have to read as much data as available that host PC |
|
648 // sends; otherwise, bulk-out endpoint will need to keep |
|
649 // sending NAK back. |
|
650 FlushDataOut(iDataTransferMan.iDataResidue); |
|
651 } |
|
652 #endif |
|
653 SendCsw(iCbwTag, iDataTransferMan.iDataResidue, iCmdStatus); |
|
654 } |
|
655 break; // KErrNone |
|
656 } // switch |
|
657 } |
|
658 break; // EReadingData |
|
659 |
|
660 case ESendingCSW: |
|
661 __PRINT(_L("ESendingCSW")); |
|
662 ReadCbw(); |
|
663 break; |
|
664 |
|
665 case EPermErr: |
|
666 __PRINT(_L("EPermErr")); |
|
667 StallEndpointAndWaitForClear(KInEndpoint); |
|
668 break; |
|
669 |
|
670 default: |
|
671 SetPermError(); // unexpected state |
|
672 } |
|
673 } |
|
674 |
|
675 |
|
676 /** |
|
677 Decode the CBW received from the host via KOutEndpoint |
|
678 |
|
679 - If the header is valid, the data content is passed to the parser. |
|
680 - Depending on the command, more data may be transmitted/received. |
|
681 - ...or the CSW is sent (if not a data command). |
|
682 |
|
683 */ |
|
684 void CBulkOnlyTransport::DecodeCbwL() |
|
685 { |
|
686 __MSFNLOG |
|
687 TBotServerReq req; |
|
688 req.DecodeL(iCbwBuf); |
|
689 |
|
690 if (!(req.IsValidCbw() && req.IsMeaningfulCbw(iMaxLun))) |
|
691 { |
|
692 User::Leave(KErrGeneral); |
|
693 } |
|
694 |
|
695 TPtrC8 aData(&iCbwBuf[TBotCbw::KCbwCbOffset], TBotCbw::KMaxCbwcbLength); |
|
696 //aData.Set(&iCbwBuf[TBotCbw::KCbwCbOffset], TBotCbw::KMaxCbwcbLength); |
|
697 TUint8 lun = req.Lun(); |
|
698 |
|
699 iCbwTag = req.Tag(); |
|
700 TUint32 hostDataLength = req.DataTransferLength(); |
|
701 iDataTransferMan.SetHostDataLen(hostDataLength); |
|
702 |
|
703 TBotServerReq::TCbwDirection dataToHost = req.Direction(); |
|
704 |
|
705 __PRINT4(_L("lun =%d, hostDataLength=%d, CBWtag = 0x%X\n, dataToHost=%d\n"), |
|
706 lun, hostDataLength, iCbwTag, dataToHost); |
|
707 |
|
708 ////////////////////////////////////////////// |
|
709 TBool ret = iProtocol->DecodePacket(aData, lun); |
|
710 ////////////////////////////////////////////// |
|
711 |
|
712 iStallAllowed = ETrue; |
|
713 |
|
714 if (!ret) |
|
715 { |
|
716 __PRINT(_L("Command Failed\n")); |
|
717 iCmdStatus = TBotCsw::ECommandFailed; |
|
718 } |
|
719 else |
|
720 { |
|
721 __PRINT(_L("Command Passed\n")); |
|
722 iCmdStatus = TBotCsw::ECommandPassed; |
|
723 } |
|
724 |
|
725 if (hostDataLength) // Host expected data transfer |
|
726 { |
|
727 if (dataToHost == TBotServerReq::EDataIn) // send data to host |
|
728 { |
|
729 if (!iDataTransferMan.IsModeDataIn()) |
|
730 { |
|
731 __PRINT(_L("Write buffer was not setup\n")); |
|
732 |
|
733 if (hostDataLength <= KBOTMaxBufSize) |
|
734 { |
|
735 // Case 4 or 8" |
|
736 iBuf.FillZ(hostDataLength); |
|
737 iLdd.Write(iStatus, KInEndpoint, iBuf, hostDataLength); |
|
738 SetActive(); |
|
739 iCurrentState = EHandleDataIn; |
|
740 iStallAllowed = EFalse; |
|
741 if (iDataTransferMan.IsModeDataOut()) |
|
742 { |
|
743 //read buffer WAS set up - case (8) |
|
744 iCmdStatus = TBotCsw::EPhaseError; |
|
745 } |
|
746 return; |
|
747 } |
|
748 else |
|
749 { |
|
750 // Use next block instead of StallEndpointAndWaitForClear(KInEndpoint); |
|
751 FlushDataIn(hostDataLength); |
|
752 } |
|
753 |
|
754 if (iDataTransferMan.IsModeDataOut()) |
|
755 { |
|
756 //read buffer WAS set up - case (8) |
|
757 SendCsw(iCbwTag, hostDataLength, TBotCsw::EPhaseError); |
|
758 //don't care to reset any flag - should get reset recovery |
|
759 } |
|
760 else |
|
761 { |
|
762 // case (4) |
|
763 SendCsw(iCbwTag, hostDataLength, iCmdStatus); |
|
764 } |
|
765 return; |
|
766 } |
|
767 |
|
768 //================== |
|
769 TInt deviceDataLength = iDataTransferMan.iWriteBuf.Length(); |
|
770 iDataTransferMan.iDataResidue = hostDataLength - deviceDataLength; |
|
771 |
|
772 #ifdef MSDC_TESTMODE |
|
773 if (iTestParser && iTestParser->Enabled()) |
|
774 { |
|
775 TInt testCase = iTestParser->TestCase(); |
|
776 if (testCase == TTestParser::ETestCaseDiResidue) |
|
777 { |
|
778 __TESTMODEPRINT2("DataIN (Data Residue) %x %x", iTestParser->TestCounter(), hostDataLength); |
|
779 |
|
780 const TInt KTransferLength = 0x100; |
|
781 const TInt KResidueA = KTransferLength/4 -10; |
|
782 const TInt KResidueB = KTransferLength/4 - 10; |
|
783 if (hostDataLength > KTransferLength) |
|
784 { |
|
785 TInt residue = 0; |
|
786 TInt i = iTestParser->TestCounter(); |
|
787 switch (i) |
|
788 { |
|
789 case 0: |
|
790 iTestParser->ClrTestCase(); |
|
791 break; |
|
792 case 1: |
|
793 residue = KResidueA; |
|
794 break; |
|
795 case 2: |
|
796 residue = KResidueB; |
|
797 break; |
|
798 |
|
799 default: |
|
800 break; |
|
801 } |
|
802 |
|
803 //deviceDataLength -= residue; |
|
804 iDataTransferMan.iDataResidue = residue; |
|
805 iStallAllowed = EFalse; |
|
806 iTestParser->DecTestCounter(); |
|
807 |
|
808 __TESTMODEPRINT4("CBW Tag=0x%x: Setting Residue (Data-In) hdl=%x ddl=%x residue=%x", |
|
809 iCbwTag, hostDataLength, deviceDataLength, residue); |
|
810 } |
|
811 } |
|
812 } |
|
813 #endif |
|
814 if (deviceDataLength < hostDataLength && hostDataLength <= KBOTMaxBufSize) |
|
815 { |
|
816 // do not pad |
|
817 // iStallAllowed = ETrue; |
|
818 // __PRINT1(_L("iBuf.Length=%d\n"),iBuf.Length()); |
|
819 // iLdd.Write(iStatus, KInEndpoint, iBuf, deviceDataLength); |
|
820 // SetActive(); |
|
821 //iCurrentState = EWritingData; |
|
822 |
|
823 // pad |
|
824 iBuf.Zero(); |
|
825 iBuf.Append(iDataTransferMan.iWriteBuf); |
|
826 iBuf.SetLength(hostDataLength); |
|
827 iStallAllowed = EFalse; |
|
828 __PRINT1(_L("iBuf.Length=%d\n"),iBuf.Length()); |
|
829 iLdd.Write(iStatus, KInEndpoint, iBuf, hostDataLength); |
|
830 SetActive(); |
|
831 iCurrentState = EHandleDataIn; |
|
832 |
|
833 return; |
|
834 } |
|
835 |
|
836 if (deviceDataLength == hostDataLength) |
|
837 { |
|
838 //case (6)[==] |
|
839 #ifdef MSDC_TESTMODE |
|
840 if (iTestParser && iTestParser->Enabled()) |
|
841 { |
|
842 if (iTestParser->TestCase() == TTestParser::ETestCaseDiStallData) |
|
843 { |
|
844 iTestParser->ClrTestCase(); |
|
845 __TESTMODEPRINT1("CBW Tag=0x%x: Stalling CSW Data-In", iCbwTag); |
|
846 StallEndpointAndWaitForClear(KInEndpoint); |
|
847 } |
|
848 } |
|
849 #endif |
|
850 |
|
851 DataInWriteRequest(deviceDataLength); |
|
852 return; |
|
853 } |
|
854 else if (deviceDataLength < hostDataLength) |
|
855 { |
|
856 //case (5)[<] |
|
857 DataInWriteRequest(deviceDataLength, ETrue); // Send ZLP |
|
858 return; |
|
859 } |
|
860 else |
|
861 { |
|
862 // deviceDataLength > hostDataLength - case (7) |
|
863 iCmdStatus = TBotCsw::EPhaseError; |
|
864 iDataTransferMan.iDataResidue = 0; |
|
865 DataInWriteRequest(hostDataLength); |
|
866 return; |
|
867 } |
|
868 } |
|
869 else // read data from host |
|
870 { |
|
871 if (!iDataTransferMan.IsModeDataOut()) |
|
872 { |
|
873 __PRINT(_L("Read buffer was not setup\n")); |
|
874 |
|
875 // Use next block instead of StallEndpointAndWaitForClear(KOutEndpoint); |
|
876 FlushDataOut(hostDataLength); |
|
877 if (iDataTransferMan.IsModeDataIn()) |
|
878 { |
|
879 //case (10) |
|
880 SendCsw(iCbwTag, hostDataLength, TBotCsw::EPhaseError); |
|
881 } |
|
882 else |
|
883 { |
|
884 // case (9) |
|
885 SendCsw(iCbwTag, hostDataLength, iCmdStatus); |
|
886 } |
|
887 return; |
|
888 } |
|
889 |
|
890 TInt deviceDataLength = iDataTransferMan.iReadBuf.Length(); |
|
891 |
|
892 if (deviceDataLength <= hostDataLength) |
|
893 { |
|
894 // case (11) and (12) |
|
895 #ifdef MSDC_TESTMODE |
|
896 TBool done = EFalse; |
|
897 if (iTestParser && iTestParser->Enabled()) |
|
898 { |
|
899 TInt testCase = iTestParser->TestCase(); |
|
900 |
|
901 if (testCase == TTestParser::ETestCaseDoStallData) |
|
902 { |
|
903 iTestParser->ClrTestCase(); |
|
904 // Stall Data Out |
|
905 __TESTMODEPRINT2("CBW Tag=0x%x: Stalling Data (Data-Out) Residue = x%x", |
|
906 iCbwTag, iDataTransferMan.iDataResidue); |
|
907 StallEndpointAndWaitForClear(KOutEndpoint); |
|
908 TInt bytes; |
|
909 const TInt err = iLdd.QueryReceiveBuffer(KOutEndpoint, bytes); |
|
910 __PRINT1(_L("Error: err=%d bytes=%d"), bytes); |
|
911 FlushDataOut(bytes); |
|
912 } |
|
913 } |
|
914 if (!done) |
|
915 { |
|
916 DataOutReadRequest(deviceDataLength); |
|
917 } |
|
918 #else |
|
919 DataOutRead(deviceDataLength); |
|
920 #endif |
|
921 return; |
|
922 } |
|
923 else |
|
924 { |
|
925 // case (13) |
|
926 /** |
|
927 * Comment following line in order to pass compliant test. |
|
928 * As spec said in case 13:"The device may receive data up to a |
|
929 * total of dCBWDataTransferLength." |
|
930 * Here we choose to ignore incoming data. |
|
931 */ |
|
932 //StallEndpointAndWaitForClear(KOutEndpoint); //Stall Out endpoint |
|
933 if (iDataTransferMan.IsModeDataOut()) |
|
934 { |
|
935 iDataTransferMan.SetModeNoData(); |
|
936 iLdd.Read(iStatus, KOutEndpoint, iDataTransferMan.iReadBuf, hostDataLength); |
|
937 User::WaitForRequest(iStatus); |
|
938 iProtocol->MediaWriteAbort(); |
|
939 } |
|
940 SendCsw(iCbwTag, hostDataLength, TBotCsw::EPhaseError); |
|
941 return; |
|
942 } |
|
943 } |
|
944 } |
|
945 else // Host expected no data transfer |
|
946 { |
|
947 __PRINT(_L("No data transfer expected\n")); |
|
948 iDataTransferMan.iDataResidue = 0; |
|
949 if (!iDataTransferMan.IsModeNoData()) |
|
950 { |
|
951 // case (2) and (3) |
|
952 SendCsw(iCbwTag, 0, TBotCsw::EPhaseError); |
|
953 } |
|
954 else |
|
955 { |
|
956 //case (1) |
|
957 #ifdef MSDC_TESTMODE |
|
958 if (iTestParser && iTestParser->Enabled()) |
|
959 { |
|
960 TInt testCase = iTestParser->TestCase(); |
|
961 if (testCase == TTestParser::ETestCaseNoDataStallCsw) |
|
962 { |
|
963 __TESTMODEPRINT1("CBW Tag=0x%x: Stalling CSW for Case 1 (Hn=Dn)", iCbwTag); |
|
964 iTestParser->ClrTestCase(); |
|
965 StallEndpointAndWaitForClear(KInEndpoint); |
|
966 } |
|
967 |
|
968 if (testCase == TTestParser::ETestCaseNoDataPhaseError) |
|
969 { |
|
970 __TESTMODEPRINT1("CBW Tag=0x%x: Enabling phase error (no data)", iCbwTag); |
|
971 iTestParser->SetPhaseError(); |
|
972 } |
|
973 } |
|
974 #endif |
|
975 SendCsw(iCbwTag, 0, iCmdStatus); |
|
976 } |
|
977 } |
|
978 } |
|
979 |
|
980 |
|
981 /** |
|
982 Initiate stalling of bulk IN endpoint. |
|
983 Used when protocol wants to force host to initiate a reset recovery. |
|
984 */ |
|
985 void CBulkOnlyTransport::SetPermError() |
|
986 { |
|
987 __MSFNLOG |
|
988 iCurrentState = EPermErr; |
|
989 Activate(KErrNone); |
|
990 } |
|
991 |
|
992 |
|
993 /** |
|
994 Send data provided by protocol to the host |
|
995 |
|
996 @param aLength amount of data (in bytes) to be send to host |
|
997 */ |
|
998 void CBulkOnlyTransport::DataInWriteRequest(TUint aLength, TBool aZlpRequired) |
|
999 { |
|
1000 __MSFNLOG |
|
1001 iLdd.Write(iStatus, KInEndpoint, iDataTransferMan.iWriteBuf, aLength, aZlpRequired); |
|
1002 iDataTransferMan.iTransportResidue -= aLength; |
|
1003 iCurrentState = EHandleDataIn; |
|
1004 SetActive(); |
|
1005 } |
|
1006 |
|
1007 |
|
1008 /** |
|
1009 Request data form the host for the protocol |
|
1010 |
|
1011 @param aLength amount of data (in bytes) to be received from the host |
|
1012 */ |
|
1013 void CBulkOnlyTransport::DataOutReadRequest(TUint aLength) |
|
1014 { |
|
1015 __MSFNLOG |
|
1016 iLdd.Read(iStatus, KOutEndpoint, iDataTransferMan.iReadBuf, aLength); |
|
1017 iDataTransferMan.iTransportResidue -= aLength; |
|
1018 iCurrentState = EHandleDataOut; |
|
1019 SetActive(); |
|
1020 } |
|
1021 |
|
1022 |
|
1023 /** |
|
1024 Send Command Status Wrapper to the host |
|
1025 |
|
1026 @param aTag Echo of Command Block Tag sent by the host. |
|
1027 @param aDataResidue the difference between the amount of data expected by the |
|
1028 host, and the actual amount of data processed by the device. |
|
1029 @param aStatus indicates the success or failure of the command. |
|
1030 */ |
|
1031 void CBulkOnlyTransport::SendCsw(TUint aTag, TUint32 aDataResidue, TBotCsw::TCswStatus aStatus) |
|
1032 { |
|
1033 __MSFNLOG |
|
1034 __PRINT2(_L("DataResidue = %d, Status = %d \n"), aDataResidue, aStatus); |
|
1035 iCsw.SetLength(TBotCsw::KCswLength); |
|
1036 TBotServerResp resp(iCbwTag, aDataResidue, aStatus); |
|
1037 #ifdef MSDC_TESTMODE |
|
1038 resp.EncodeL(iCsw, iTestParser); |
|
1039 #else |
|
1040 resp.EncodeL(iCsw); |
|
1041 #endif |
|
1042 iLdd.Write(iStatus, KInEndpoint, iCsw, TBotCsw::KCswLength); |
|
1043 iCurrentState = ESendingCSW; |
|
1044 SetActive(); |
|
1045 } |
|
1046 |
|
1047 |
|
1048 /** |
|
1049 Associates the transport with the protocol. Called during initialization of the controller. |
|
1050 |
|
1051 @param aProtocol reference to the protocol |
|
1052 */ |
|
1053 void CBulkOnlyTransport::RegisterProtocol(MServerProtocol& aProtocol) |
|
1054 { |
|
1055 __MSFNLOG |
|
1056 iProtocol = &aProtocol; |
|
1057 } |
|
1058 |
|
1059 |
|
1060 /** |
|
1061 Used by CControlInterface |
|
1062 |
|
1063 @return reference to the controller which instantiate the CBulkOnlyTransport |
|
1064 */ |
|
1065 CUsbMassStorageController& CBulkOnlyTransport::Controller() |
|
1066 { |
|
1067 return iController; |
|
1068 } |
|
1069 |
|
1070 |
|
1071 /** |
|
1072 @return the number of logical units supported by the device. |
|
1073 Logical Unit Numbers on the device shall be numbered contiguously starting from LUN |
|
1074 0 to a maximum LUN of 15 (Fh). |
|
1075 */ |
|
1076 TInt CBulkOnlyTransport::MaxLun() |
|
1077 { |
|
1078 __MSFNLOG |
|
1079 return iMaxLun; |
|
1080 } |
|
1081 |
|
1082 |
|
1083 /** |
|
1084 Used by CControlInterface |
|
1085 @return reference to USB logical driver |
|
1086 */ |
|
1087 RDevUsbcClient& CBulkOnlyTransport::Ldd() |
|
1088 { |
|
1089 return iLdd; |
|
1090 } |
|
1091 |
|
1092 |
|
1093 void CBulkOnlyTransport::StallEndpointAndWaitForClear(TEndpointNumber aEndpoint) |
|
1094 { |
|
1095 __MSFNLOG |
|
1096 __ASSERT_DEBUG(aEndpoint != EEndpoint0, User::Panic(KUsbMsClientPanicCat, EMsWrongEndpoint)); |
|
1097 |
|
1098 // Now stall this endpoint |
|
1099 __PRINT1(_L("Stalling endpoint %d"), aEndpoint); |
|
1100 __TESTMODEPRINT2("CBW Tag=0x%x: Stalling endpoint %d", iCbwTag, aEndpoint); |
|
1101 TInt r = iLdd.HaltEndpoint(aEndpoint); |
|
1102 if (r != KErrNone) |
|
1103 { |
|
1104 __PRINT2(_L("Error: stalling ep %d failed: %d"), aEndpoint, r); |
|
1105 } |
|
1106 TEndpointState ep_state; |
|
1107 TInt i = 0; |
|
1108 do |
|
1109 { |
|
1110 // Wait for 10ms before checking the ep status |
|
1111 User::After(10000); |
|
1112 |
|
1113 if (aEndpoint == KInEndpoint) |
|
1114 { |
|
1115 // Discard BULK-OUT data |
|
1116 TInt bytes; |
|
1117 const TInt err = iLdd.QueryReceiveBuffer(KOutEndpoint, bytes); |
|
1118 if (err != KErrNone || bytes <= 0) |
|
1119 { |
|
1120 __PRINT1(_L("Error: err=%d bytes=%d"), bytes); |
|
1121 } |
|
1122 else |
|
1123 { |
|
1124 __PRINT1(_L("RxBuffer has %d bytes"), bytes); |
|
1125 FlushDataOut(bytes); |
|
1126 } |
|
1127 } |
|
1128 |
|
1129 iLdd.EndpointStatus(aEndpoint, ep_state); |
|
1130 if (++i >= 550) |
|
1131 { |
|
1132 // 5.5 secs should be enough (see 9.2.6.1 Request Processing Timing) |
|
1133 __PRINT1(_L("Error: Checked for ep %d de-stall for 5.5s - giving up now"), aEndpoint); |
|
1134 __TESTMODEPRINT1("Error: Checked for ep %d de-stall for 5.5s - giving up now", aEndpoint); |
|
1135 // We can now only hope for a Reset Recovery |
|
1136 return; |
|
1137 } |
|
1138 } while ((ep_state == EEndpointStateStalled) && iStarted); |
|
1139 __PRINT2(_L("Checked for ep %d de-stall: %d time(s)"), aEndpoint, i); |
|
1140 __TESTMODEPRINT2("Checked for ep %d de-stall: %d time(s)", aEndpoint, i); |
|
1141 } |
|
1142 |
|
1143 |
|
1144 |
|
1145 /** |
|
1146 Called by the protocol to determine how many bytes of data are available in the read buffer. |
|
1147 |
|
1148 @return The number of bytes available in the read buffer |
|
1149 */ |
|
1150 TInt CBulkOnlyTransport::BytesAvailable() |
|
1151 { |
|
1152 __MSFNLOG |
|
1153 TInt bytes = 0; |
|
1154 TInt err = iLdd.QueryReceiveBuffer(KOutEndpoint, bytes); |
|
1155 if (err != KErrNone) |
|
1156 bytes = 0; |
|
1157 return bytes; |
|
1158 } |
|
1159 |
|
1160 |
|
1161 /** |
|
1162 * Read out rest data from KOutEndpoint and discard them |
|
1163 */ |
|
1164 void CBulkOnlyTransport::FlushDataOut(TInt aLength) |
|
1165 { |
|
1166 __MSFNLOG |
|
1167 iBuf.SetMax(); |
|
1168 TRequestStatus status; |
|
1169 while (aLength > 0) |
|
1170 { |
|
1171 iLdd.ReadOneOrMore(status, KOutEndpoint, iBuf, iBuf.Length()); |
|
1172 User::WaitForRequest(status); |
|
1173 TInt err = status.Int(); |
|
1174 if (err != KErrNone) |
|
1175 { |
|
1176 // Bad. |
|
1177 break; |
|
1178 } |
|
1179 aLength -= iBuf.Length(); |
|
1180 } |
|
1181 } |
|
1182 |
|
1183 |
|
1184 void CBulkOnlyTransport::FlushDataIn(TInt aLength) |
|
1185 { |
|
1186 iBuf.SetMax(); |
|
1187 TInt c = 0; |
|
1188 TInt len; |
|
1189 TRequestStatus status; |
|
1190 while (c < aLength) |
|
1191 { |
|
1192 len = aLength - c; |
|
1193 if (len > KBOTMaxBufSize) |
|
1194 { |
|
1195 len = KBOTMaxBufSize; |
|
1196 } |
|
1197 iLdd.Write(status, KInEndpoint, iBuf, len); |
|
1198 User::WaitForRequest(status); |
|
1199 c += KBOTMaxBufSize; |
|
1200 } |
|
1201 } |
|
1202 |
|
1203 // |
|
1204 // --- class CActiveDeviceStateNotifier --------------------------------------------------------- |
|
1205 // |
|
1206 CActiveDeviceStateNotifier::CActiveDeviceStateNotifier(CBulkOnlyTransport& aParent) |
|
1207 : CActive(EPriorityStandard), |
|
1208 iParent(aParent), |
|
1209 iDeviceState(EUsbcNoState), |
|
1210 iOldDeviceState(EUsbcNoState) |
|
1211 { |
|
1212 __MSFNLOG |
|
1213 } |
|
1214 |
|
1215 |
|
1216 CActiveDeviceStateNotifier* CActiveDeviceStateNotifier::NewL(CBulkOnlyTransport& aParent) |
|
1217 { |
|
1218 __MSFNSLOG |
|
1219 CActiveDeviceStateNotifier* self = new (ELeave) CActiveDeviceStateNotifier(aParent); |
|
1220 CleanupStack::PushL(self); |
|
1221 self->ConstructL(); |
|
1222 CActiveScheduler::Add(self); |
|
1223 CleanupStack::Pop(); // self |
|
1224 return (self); |
|
1225 } |
|
1226 |
|
1227 |
|
1228 void CActiveDeviceStateNotifier::ConstructL() |
|
1229 { |
|
1230 __MSFNLOG |
|
1231 } |
|
1232 |
|
1233 |
|
1234 CActiveDeviceStateNotifier::~CActiveDeviceStateNotifier() |
|
1235 { |
|
1236 __MSFNLOG |
|
1237 Cancel(); // base class |
|
1238 } |
|
1239 |
|
1240 |
|
1241 void CActiveDeviceStateNotifier::DoCancel() |
|
1242 /** |
|
1243 * |
|
1244 */ |
|
1245 { |
|
1246 __MSFNLOG |
|
1247 iParent.Ldd().AlternateDeviceStatusNotifyCancel(); |
|
1248 } |
|
1249 |
|
1250 |
|
1251 void CActiveDeviceStateNotifier::RunL() |
|
1252 /** |
|
1253 * |
|
1254 */ |
|
1255 { |
|
1256 __MSFNLOG |
|
1257 // This displays the device state. |
|
1258 // In a real world program, the user could take here appropriate action (cancel a |
|
1259 // transfer request or whatever). |
|
1260 if (!(iDeviceState & KUsbAlternateSetting)) |
|
1261 { |
|
1262 switch (iDeviceState) |
|
1263 { |
|
1264 case EUsbcDeviceStateUndefined: |
|
1265 __PRINT(_L("Device State notifier: Undefined\n")); |
|
1266 iParent.HwStop(); |
|
1267 break; |
|
1268 case EUsbcDeviceStateAttached: |
|
1269 __PRINT(_L("Device State notifier: Attached\n")); |
|
1270 iParent.HwStop(); |
|
1271 break; |
|
1272 case EUsbcDeviceStatePowered: |
|
1273 __PRINT(_L("Device State notifier: Powered\n")); |
|
1274 iParent.HwStop(); |
|
1275 break; |
|
1276 case EUsbcDeviceStateDefault: |
|
1277 __PRINT(_L("Device State notifier: Default\n")); |
|
1278 iParent.HwStop(); |
|
1279 break; |
|
1280 case EUsbcDeviceStateAddress: |
|
1281 __PRINT(_L("Device State notifier: Address\n")); |
|
1282 iParent.HwStop(); |
|
1283 break; |
|
1284 case EUsbcDeviceStateConfigured: |
|
1285 __PRINT(_L("Device State notifier: Configured\n")); |
|
1286 if (iOldDeviceState == EUsbcDeviceStateSuspended) |
|
1287 { |
|
1288 iParent.HwResume(); |
|
1289 } |
|
1290 else |
|
1291 { |
|
1292 iParent.HwStart(); |
|
1293 } |
|
1294 break; |
|
1295 case EUsbcDeviceStateSuspended: |
|
1296 __PRINT(_L("Device State notifier: Suspended\n")); |
|
1297 if (iOldDeviceState == EUsbcDeviceStateConfigured) |
|
1298 { |
|
1299 iParent.HwSuspend(); |
|
1300 } |
|
1301 break; |
|
1302 default: |
|
1303 __PRINT(_L("Device State notifier: ***BAD***\n")); |
|
1304 iParent.HwStop(); |
|
1305 break; |
|
1306 } |
|
1307 iOldDeviceState = iDeviceState; |
|
1308 } |
|
1309 else if (iDeviceState & KUsbAlternateSetting) |
|
1310 { |
|
1311 __PRINT1(_L("Device State notifier: Alternate interface setting has changed: now %d\n"), iDeviceState & ~KUsbAlternateSetting); |
|
1312 } |
|
1313 Activate(); |
|
1314 } |
|
1315 |
|
1316 |
|
1317 void CActiveDeviceStateNotifier::Activate() |
|
1318 /** |
|
1319 * |
|
1320 */ |
|
1321 { |
|
1322 __MSFNLOG |
|
1323 if (IsActive()) |
|
1324 { |
|
1325 __PRINT(_L("Still active\n")); |
|
1326 return; |
|
1327 } |
|
1328 iParent.Ldd().AlternateDeviceStatusNotify(iStatus, iDeviceState); |
|
1329 SetActive(); |
|
1330 } |