author | Pat Downey <patd@symbian.org> |
Wed, 01 Sep 2010 12:35:00 +0100 | |
branch | RCL_3 |
changeset 43 | 012cc2ee6408 |
parent 42 | f92a4f87e424 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* Adheres to the UsbMan USB Class Controller API and talks to C32 |
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* to manage the stub2.CSY that is used to provide a virtual |
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* serial port service to clients |
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* |
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*/ |
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/** |
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@file |
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*/ |
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#include "Stub2CC.h" |
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#include <usb_std.h> |
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#include <es_ini.h> |
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#include <d32usbc.h> |
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#include <usb/usblogger.h> |
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#ifdef __FLOG_ACTIVE |
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_LIT8(KLogComponent, "STUB2CC"); |
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#endif |
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#include "usbmaninternalconstants.h" |
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// Panic category |
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_LIT( Kstub2CcPanicCategory, "Usbstub2Cc" ); |
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/** |
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* Panic codes for the USB stub2 Class Controller. |
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*/ |
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enum Tstub2CcPanic |
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{ |
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/** Class called while in an illegal state */ |
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EBadApiCall = 0, |
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/** Asynchronous function called (not needed, as all requests complete synchronously) */ |
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EUnusedFunction = 1, |
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/** Error reading ini file. */ |
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EPanicBadIniFile = 2, |
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/** Bad value for the iNumberOfstub2Functions member.*/ |
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EPanicBadNumberOfstub2Functions = 3, |
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EPanicUnexpectedStatus, |
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EPanicUnexpectedState |
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}; |
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_LIT16(KIfcName, "SubCC 1 Interface"); |
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const TInt KMaxPacketTypeInterrupt = 64; |
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const TInt KPollInterval = 128; |
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/** |
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* Constructs a CUsbstub2ClassController object |
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* |
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* @param aOwner USB Device that owns and manages the class |
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* |
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* @return A new CUsbstub2ClassController object |
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*/ |
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CUsbstub2ClassController* CUsbstub2ClassController::NewL( |
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MUsbClassControllerNotify& aOwner) |
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{ |
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CUsbstub2ClassController* r = new (ELeave) CUsbstub2ClassController(aOwner); |
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CleanupStack::PushL(r); |
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r->ConstructL(); |
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CleanupStack::Pop(); |
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return r; |
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} |
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/** |
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* Destructor |
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*/ |
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CUsbstub2ClassController::~CUsbstub2ClassController() |
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{ |
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Cancel(); |
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iTimer.Close(); |
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#ifndef __WINS__ |
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iLdd.Close(); |
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#endif |
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} |
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/** |
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* Constructor. |
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* |
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* @param aOwner USB Device that owns and manages the class |
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*/ |
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CUsbstub2ClassController::CUsbstub2ClassController( |
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MUsbClassControllerNotify& aOwner) |
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109 |
: CUsbClassControllerPlugIn(aOwner, Kstub2StartupPriority), |
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iStartDelay(Kstub2CCDefaultDelay), |
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111 |
iStopDelay(Kstub2CCDefaultDelay), |
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112 |
iFailToStart(EFalse), |
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113 |
iFailToStop(EFalse) |
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114 |
|
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115 |
{ |
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iTimer.CreateLocal(); |
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117 |
} |
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118 |
|
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119 |
|
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120 |
|
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121 |
/** |
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* 2nd Phase Construction. |
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123 |
*/ |
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124 |
void CUsbstub2ClassController::ConstructL() |
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125 |
{ |
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//read INI file |
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TInt ret; |
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CESockIniData* ini = 0; |
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_LIT(KIniFile, "c:\\testdata\\config\\stub2cc.ini"); |
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TRAP(ret, ini=CESockIniData::NewL(KIniFile)); |
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if(ret!=KErrNone) |
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132 |
return; |
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133 |
|
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CleanupStack::PushL(ini); |
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135 |
|
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136 |
TInt val; |
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137 |
if ((ini->FindVar(_L("0x10203287"),_L("StartDelay"), val))) |
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138 |
{ |
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139 |
iStartDelay = val; |
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140 |
} |
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141 |
if ((ini->FindVar(_L("0x10203287"),_L("StopDelay"), val))) |
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142 |
{ |
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143 |
iStopDelay = val; |
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144 |
} |
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145 |
if ((ini->FindVar(_L("0x10203287"),_L("FailToStart"), val)) && val!=0) |
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146 |
{ |
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147 |
iFailToStart = ETrue; |
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148 |
} |
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149 |
if ((ini->FindVar(_L("0x10203287"),_L("FailToStop"), val)) && val!=0 ) |
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150 |
{ |
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151 |
iFailToStop = ETrue; |
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152 |
} |
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153 |
CleanupStack::PopAndDestroy(ini); |
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154 |
} |
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155 |
|
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156 |
/** |
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157 |
* Called by UsbMan when it wants to start the USB stub2 class. This always |
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158 |
* completes immediately. |
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159 |
* |
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160 |
* @param aStatus The caller's request status, filled in with an error code |
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161 |
*/ |
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162 |
void CUsbstub2ClassController::Start(TRequestStatus& aStatus) |
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163 |
{ |
43 | 164 |
LOG_FUNC |
165 |
||
0
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166 |
aStatus = KRequestPending; |
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167 |
iReportStatus = &aStatus; |
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168 |
//If we are already started then just complete the request. |
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169 |
if (iState == EUsbServiceStarted) |
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170 |
{ |
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171 |
User::RequestComplete(iReportStatus, KErrNone); |
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172 |
return; |
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173 |
} |
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|
174 |
|
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175 |
if (iFailToStart) |
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176 |
{ |
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177 |
User::RequestComplete(iReportStatus, KErrGeneral); |
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178 |
return; |
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179 |
} |
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180 |
|
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181 |
iState = EUsbServiceStarting; |
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|
182 |
#ifndef __WINS__ |
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183 |
TInt ret = iLdd.Open(0); |
43 | 184 |
LOGTEXT2(_L8("Open LDD, ret=%d"), ret); |
0
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185 |
ret = SetUpInterface(); |
43 | 186 |
LOGTEXT2(_L8("SetUpInterface(), ret=%d"), ret); |
0
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187 |
#endif |
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188 |
|
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|
189 |
|
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190 |
iTimer.After(iStatus, iStartDelay*1000); //convert from usec to msec |
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191 |
SetActive(); |
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192 |
} |
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|
193 |
|
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|
194 |
/** |
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195 |
* Called by UsbMan when it wants to stop the USB stub2 class. |
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196 |
* |
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197 |
* @param aStatus The caller's request status: always set to KErrNone |
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198 |
*/ |
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|
199 |
void CUsbstub2ClassController::Stop(TRequestStatus& aStatus) |
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200 |
{ |
43 | 201 |
LOG_FUNC |
202 |
||
0
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|
203 |
aStatus = KRequestPending; |
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|
204 |
iReportStatus = &aStatus; |
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|
205 |
//If we are already idle then just complete the request. |
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|
206 |
if (iState == EUsbServiceIdle) |
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|
207 |
{ |
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|
208 |
User::RequestComplete(iReportStatus, KErrNone); |
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|
209 |
return; |
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210 |
} |
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|
211 |
|
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|
212 |
if (iFailToStop) |
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|
213 |
{ |
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|
214 |
User::RequestComplete(iReportStatus, KErrGeneral); |
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|
215 |
return; |
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|
216 |
} |
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|
217 |
|
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|
218 |
iState = EUsbServiceStopping; |
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|
219 |
|
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|
220 |
#ifndef __WINS__ |
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iLdd.Close(); |
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#endif |
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223 |
|
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iTimer.After(iStatus, iStopDelay*1000); //convert from usec to msec |
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SetActive(); |
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226 |
} |
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|
227 |
|
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/** |
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* Gets information about the descriptor which this class provides. |
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* |
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* @param aDescriptorInfo Descriptor info structure filled in by this function |
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*/ |
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233 |
void CUsbstub2ClassController::GetDescriptorInfo(TUsbDescriptor& aDescriptorInfo) const |
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234 |
{ |
43 | 235 |
LOG_FUNC |
236 |
||
0
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237 |
aDescriptorInfo.iLength = Kstub2DescriptorLength; |
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aDescriptorInfo.iNumInterfaces = Kstub2NumberOfInterfacesPerstub2Function; |
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239 |
} |
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240 |
|
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241 |
|
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242 |
/** |
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243 |
* Standard active object RunL. |
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244 |
*/ |
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245 |
void CUsbstub2ClassController::RunL() |
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246 |
{ |
43 | 247 |
LOG_FUNC |
248 |
||
249 |
__ASSERT_DEBUG( iStatus == KErrNone, _USB_PANIC(Kstub2CcPanicCategory, EPanicUnexpectedStatus) ); |
|
0
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250 |
switch (iState) |
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251 |
{ |
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252 |
case EUsbServiceStarting: |
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iState = EUsbServiceStarted; |
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254 |
break; |
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255 |
case EUsbServiceStopping: |
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256 |
iState = EUsbServiceIdle; |
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|
257 |
break; |
43 | 258 |
default: |
259 |
_USB_PANIC(Kstub2CcPanicCategory, EPanicUnexpectedState); |
|
0
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260 |
} |
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261 |
*iReportStatus = KErrNone; |
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262 |
User::RequestComplete(iReportStatus, iStatus.Int()); |
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263 |
} |
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264 |
|
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265 |
/** |
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266 |
* Standard active object cancellation function. Never called because this |
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267 |
* class has no asynchronous requests. |
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268 |
*/ |
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269 |
void CUsbstub2ClassController::DoCancel() |
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270 |
{ |
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271 |
|
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272 |
if (IsActive()) |
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273 |
{ |
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274 |
iTimer.Cancel(); |
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275 |
} |
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276 |
switch (iState) |
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277 |
{ |
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278 |
case EUsbServiceStarting: |
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iState = EUsbServiceIdle; |
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280 |
break; |
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281 |
case EUsbServiceStopping: |
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282 |
iState = EUsbServiceStarted; |
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|
283 |
break; |
43 | 284 |
default: |
285 |
_USB_PANIC(Kstub2CcPanicCategory, EPanicUnexpectedState); |
|
0
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286 |
} |
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Revision: 201001
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|
287 |
*iReportStatus = KErrNone; |
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Revision: 201001
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|
288 |
User::RequestComplete(iReportStatus, KErrCancel); |
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Revision: 201001
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|
289 |
} |
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|
290 |
|
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Revision: 201001
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|
291 |
/** |
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Revision: 201001
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|
292 |
* Standard active object error function. Never called because this class has |
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Revision: 201001
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|
293 |
* no asynchronous requests, and hence its RunL is never called. |
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|
294 |
* |
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|
295 |
* @param aError The error code (unused) |
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|
296 |
* @return Always KErrNone to avoid an active scheduler panic |
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|
297 |
*/ |
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Revision: 201001
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|
298 |
TInt CUsbstub2ClassController::RunError(TInt /*aError*/) |
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Revision: 201001
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|
299 |
{ |
43 | 300 |
__ASSERT_DEBUG( EFalse, _USB_PANIC(Kstub2CcPanicCategory, EUnusedFunction) ); |
0
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|
301 |
return KErrNone; |
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Revision: 201001
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|
302 |
} |
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|
303 |
|
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|
304 |
TInt CUsbstub2ClassController::SetUpInterface() |
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|
305 |
/** |
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|
306 |
* Set up the interface for use. This involves finding a "Interrupt IN" |
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|
307 |
* endpoint and, if found, configuring the interface. |
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|
308 |
*/ |
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Revision: 201001
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diff
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|
309 |
{ |
43 | 310 |
LOGTEXT(_L8(">>CCdcControlInterface::SetUpInterface")); |
311 |
||
0
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Revision: 201001
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diff
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|
312 |
TUsbDeviceCaps dCaps; |
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Revision: 201001
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diff
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|
313 |
TInt ret = iLdd.DeviceCaps(dCaps); |
43 | 314 |
LOGTEXT(_L8("\tchecking result of DeviceCaps")); |
0
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diff
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|
315 |
if ( ret ) |
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Revision: 201001
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parents:
diff
changeset
|
316 |
{ |
43 | 317 |
LOGTEXT2(_L8("<<CCdcControlInterface::SetUpInterface ret=%d"), ret); |
0
c9bc50fca66e
Revision: 201001
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diff
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|
318 |
return ret; |
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Revision: 201001
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diff
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|
319 |
} |
c9bc50fca66e
Revision: 201001
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parents:
diff
changeset
|
320 |
|
c9bc50fca66e
Revision: 201001
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parents:
diff
changeset
|
321 |
const TUint KRequiredNumberOfEndpoints = 1; // in addition to endpoint 0. |
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Revision: 201001
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diff
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|
322 |
|
c9bc50fca66e
Revision: 201001
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parents:
diff
changeset
|
323 |
const TUint totalEndpoints = static_cast<TUint>(dCaps().iTotalEndpoints); |
43 | 324 |
LOGTEXT2(_L8("\tiTotalEndpoints = %d"), totalEndpoints); |
0
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Revision: 201001
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parents:
diff
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|
325 |
if ( totalEndpoints < KRequiredNumberOfEndpoints ) |
c9bc50fca66e
Revision: 201001
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parents:
diff
changeset
|
326 |
{ |
43 | 327 |
LOGTEXT2(_L8("<<CCdcControlInterface::SetUpInterface ret=%d"), |
328 |
KErrGeneral); |
|
0
c9bc50fca66e
Revision: 201001
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parents:
diff
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|
329 |
return KErrGeneral; |
c9bc50fca66e
Revision: 201001
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parents:
diff
changeset
|
330 |
} |
c9bc50fca66e
Revision: 201001
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parents:
diff
changeset
|
331 |
|
c9bc50fca66e
Revision: 201001
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parents:
diff
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|
332 |
// Endpoints |
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Revision: 201001
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parents:
diff
changeset
|
333 |
TUsbcEndpointData data[KUsbcMaxEndpoints]; |
c9bc50fca66e
Revision: 201001
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parents:
diff
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|
334 |
TPtr8 dataptr(reinterpret_cast<TUint8*>(data), sizeof(data), sizeof(data)); |
c9bc50fca66e
Revision: 201001
Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
parents:
diff
changeset
|
335 |
ret = iLdd.EndpointCaps(dataptr); |
43 | 336 |
LOGTEXT(_L8("\tchecking result of EndpointCaps")); |
0
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if ( ret ) |
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{ |
43 | 339 |
LOGTEXT2(_L8("<<CCdcControlInterface::SetUpInterface ret=%d"), ret); |
0
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return ret; |
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} |
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342 |
|
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// Set the active interface |
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TUsbcInterfaceInfoBuf ifc; |
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TBool epFound = EFalse; |
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for ( TUint i = 0 ; i < totalEndpoints ; i++ ) |
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{ |
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const TUsbcEndpointCaps* caps = &data[i].iCaps; |
43 | 349 |
__ASSERT_DEBUG(caps,_USB_PANIC(Kstub2CcPanicCategory, EPanicUnexpectedStatus)); |
350 |
||
0
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if (data[i].iInUse) |
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{ |
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continue; |
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} |
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355 |
|
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if ((caps->iTypesAndDir & (KUsbEpTypeInterrupt | KUsbEpDirIn)) == |
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(KUsbEpTypeInterrupt | KUsbEpDirIn)) |
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{ |
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// EEndpoint1 is interrupt endpoint |
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ifc().iEndpointData[0].iType = KUsbEpTypeInterrupt; |
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ifc().iEndpointData[0].iDir = KUsbEpDirIn; |
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362 |
|
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//get the max packet size it can potentially support |
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//it's possible that it can support Isoch (1023) which is greater |
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//than max for Int at 64 |
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TInt maxSize = Min(caps->MaxPacketSize(), KMaxPacketTypeInterrupt); |
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367 |
|
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ifc().iEndpointData[0].iSize = maxSize; |
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369 |
|
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ifc().iEndpointData[0].iInterval = KPollInterval; |
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epFound = ETrue; |
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break; |
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} |
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} |
43 | 375 |
LOGTEXT(_L8("\tchecking epFound")); |
0
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if ( !epFound ) |
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{ |
43 | 378 |
LOGTEXT2(_L8("<<CCdcControlInterface::SetUpInterface ret=%d"), |
379 |
KErrGeneral); |
|
0
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return KErrGeneral; |
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} |
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382 |
|
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TName ifcName(KIfcName); |
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ifc().iString = &ifcName; |
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ifc().iTotalEndpointsUsed = KRequiredNumberOfEndpoints; |
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// Codes taken from USBCDC 1.1. |
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ifc().iClass.iClassNum = 0x02; // Table 15- Communication Interface Class |
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ifc().iClass.iSubClassNum = 0x02; // Table 16- Abstract Control Model |
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ifc().iClass.iProtocolNum = 0x01; // Table 17- Hayes compatible |
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|
43 | 391 |
LOGTEXT(_L8("\tabout to call SetInterface")); |
0
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// Zero effectively indicates that alternate interfaces are not used. |
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ret = iLdd.SetInterface(0, ifc); |
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|
43 | 395 |
LOGTEXT2(_L8("<<CCdcControlInterface::SetUpInterface ret=%d"), ret); |
0
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return ret; |
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} |
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398 |
|
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// |
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400 |
// End of file |