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1 // Copyright (c) 2001-2009 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 "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 #include "gprs.h" |
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17 #include "Gprscontext.h" |
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18 #include "mSLOGGER.H" |
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19 #include <pcktcs.h> |
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20 #include "ATGprsAttach.H" |
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21 #include "ATIO.H" |
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22 #include <etelpckt.h> |
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23 #include "TSYCONFG.H" |
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24 #include "NOTIFY.H" |
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25 #include "Matstd.h" |
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26 |
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27 /** |
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28 * @file |
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29 * This file implements the CATGprsAttach class which is one of the state machine used by the |
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30 * GPRS AT TSY library. |
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31 */ |
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32 |
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33 /** |
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34 * This state machine uses the "AT+CGATT" command to connect to the GPRS network. |
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35 */ |
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36 _LIT8(KAttachCommand, "AT+CGATT=1\r"); |
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37 |
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38 CATGprsAttach* CATGprsAttach::NewL(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals ) |
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39 /** |
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40 * Standard 2 phase constructor. |
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41 * |
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42 * @param aIo pointer to communication object. |
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43 * @param aTelObject pointer to parent. |
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44 * @param aPhoneGlobals pointer to phone global wide states. |
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45 */ |
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46 { |
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47 CATGprsAttach* p =new(ELeave) CATGprsAttach(aIo, aTelObject, aInit, aPhoneGlobals); |
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48 CleanupStack::PushL(p); |
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49 p->ConstructL(); |
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50 CleanupStack::Pop(); |
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51 |
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52 return p; |
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53 } |
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54 |
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55 void CATGprsAttach::ConstructL() |
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56 /** |
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57 * Construct all objects that can leave. |
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58 */ |
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59 { |
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60 CATCommands::ConstructL(); |
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61 } |
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62 |
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63 CATGprsAttach::CATGprsAttach(CATIO* aIo, CTelObject* aTelObject, CATInit* aInit, CPhoneGlobals* aPhoneGlobals) |
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64 :CATCommands(aIo, aTelObject, aInit, aPhoneGlobals) |
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65 /** |
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66 * Constructor. |
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67 * |
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68 * @param aIo pointer to communication object. |
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69 * @param aTelObject pointer to parent. |
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70 * @param aInit pointer to AT phone init object. |
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71 * @param aPhoneGlobals pointer to phone global wide states. |
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72 */ |
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73 { |
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74 LOGTEXT(_L8("CATGprsAttach::CATGprsAttach called")); |
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75 } |
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76 |
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77 |
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78 CATGprsAttach::~CATGprsAttach() |
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79 /** |
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80 * Destructor. |
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81 */ |
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82 { |
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83 LOGTEXT(_L8("CATGprsAttach::~CATGprsAttach called")); |
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84 iIo->RemoveExpectStrings(this); |
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85 } |
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86 |
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87 |
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88 void CATGprsAttach::Start(TTsyReqHandle aTsyReqHandle, TAny* /*aParams*/) |
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89 /** |
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90 * This is the standard entry point for sending attach command. |
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91 * @param aTsyReqHandle handle to the client. |
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92 */ |
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93 { |
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94 LOGTEXT(_L8("CATGprsAttach::Start called")); |
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95 iReqHandle = aTsyReqHandle; |
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96 iState=ESendAttachCommand; |
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97 Write(KAttachCommand, KGprsCommandTimeOut); |
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98 } |
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99 |
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100 |
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101 void CATGprsAttach::Stop(TTsyReqHandle aTsyReqHandle) |
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102 /** |
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103 * This funciton stops this AT state machine |
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104 */ |
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105 { |
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106 LOGTEXT(_L8("CATGprsAttach::Stop called")); |
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107 if(iState!=EATNotInProgress && aTsyReqHandle==iReqHandle) |
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108 { |
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109 LOGTEXT(_L8("CATGprsAttach::Stop Completing client request with KErrCancel")); |
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110 Complete(KErrCancel,ETimeOutCompletion); // Pretend we have had a timeout |
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111 } |
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112 } |
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113 |
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114 |
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115 void CATGprsAttach::CompleteWithIOError(TEventSource aSource,TInt aStatus) |
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116 /** |
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117 * This Function completes the command from the client with an error. |
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118 * @param aSource source of event from communication class. |
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119 * @param aStatus status of event. |
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120 */ |
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121 { |
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122 LOGTEXT(_L8("CATGprsAttach::CompleteWithIOError called")); |
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123 Complete(aStatus, aSource); |
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124 } |
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125 |
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126 |
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127 void CATGprsAttach::Complete(TInt aError,TEventSource aSource) |
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128 /** |
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129 * This Function completes the command from the client. |
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130 * @param aError an error code to relay to client. |
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131 */ |
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132 { |
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133 LOGTEXT2(_L8("CATGprsAttach::Complete called error: %d"), aError); |
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134 RemoveStdExpectStrings(); |
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135 iIo->WriteAndTimerCancel(this); |
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136 iIo->RemoveExpectStrings(this); |
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137 if (aError==KErrNone) |
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138 { |
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139 ((CGprs*)iTelObject)->SetStatus(RPacketService::EStatusAttached); |
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140 iPhoneGlobals->iNotificationStore->CheckNotification(iTelObject, EPacketStatusChanged); |
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141 } |
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142 |
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143 // Allow our base class to do its thing and then complete the client request |
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144 CATCommands::Complete(aError,aSource); |
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145 iTelObject->ReqCompleted(iReqHandle, aError); |
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146 |
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147 iState = EATNotInProgress; |
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148 } |
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149 |
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150 |
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151 void CATGprsAttach::EventSignal(TEventSource aSource) |
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152 /** |
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153 * This function contains the state machine for the command. The states flow consecutively and are |
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154 * described below. |
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155 * @par ESendAttachCommand |
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156 * Reads the Modem's response to the AT+CGATT=1 command and completes the request. |
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157 */ |
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158 { |
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159 LOGTEXT2(_L8("CATGprsAttach::EventSignal called with iState=%d"),iState); |
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160 |
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161 if ((aSource==ETimeOutCompletion)) |
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162 { |
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163 LOGTEXT(_L8("CATGprsAttach::EventSignal, Timeout")); |
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164 Complete(KErrTimedOut,aSource); |
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165 return; |
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166 } |
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167 |
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168 switch(iState) |
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169 { |
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170 case ESendAttachCommand: |
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171 __ASSERT_ALWAYS(aSource==EWriteCompletion,Panic(EATCommand_IllegalCompletionWriteExpected)); |
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172 { |
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173 LOGTEXT(_L8("CATGprsAttach::EventSignal, ESendConnectCommand")); |
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174 __ASSERT_ALWAYS(aSource==EWriteCompletion,Panic(EATCommand_IllegalCompletionWriteExpected)); |
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175 StandardWriteCompletionHandler(aSource, KGprsLongCommandTimeOut); |
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176 iState = EAttachReadComplete; |
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177 } |
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178 break; |
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179 case EAttachReadComplete: |
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180 __ASSERT_ALWAYS(aSource==EReadCompletion,Panic(EATCommand_IllegalCompletionWriteExpected)); |
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181 { |
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182 LOGTEXT(_L8("CATGprsAttach::EventSignal, EConnectReadComplete")); |
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183 __ASSERT_ALWAYS(aSource==EReadCompletion,Panic(EATCommand_IllegalCompletionReadExpected)); |
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184 TInt ret = ValidateExpectString(); |
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185 Complete(ret, aSource); |
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186 } |
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187 break; |
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188 case EATNotInProgress: |
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189 break; |
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190 default: |
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191 { |
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192 LOGTEXT(_L8("CATGprsAttach::EventSignal, Default, panic")); |
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193 Panic(EIllegalEvent); |
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194 } |
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195 } |
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196 } |