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1 /** |
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2 * Copyright (c) 1997-2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 * All rights reserved. |
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4 * This component and the accompanying materials are made available |
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5 * under the terms of "Eclipse Public License v1.0" |
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6 * which accompanies this distribution, and is available |
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7 * at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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8 * |
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9 * Initial Contributors: |
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10 * Nokia Corporation - initial contribution. |
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11 * |
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12 * Contributors: |
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13 * |
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14 * Description: |
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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 |
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20 /** |
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21 @file SLIP.H |
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22 @internalComponent |
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23 */ |
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24 |
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25 #if !defined(__SLIP_H__) |
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26 #define __SLIP_H__ |
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27 |
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28 #include <es_mbuf.h> |
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29 #include <comms-infras/nifif.h> |
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30 #include <nifutl.h> |
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31 |
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32 //////////////////////////////////////////////////////////////////////////////// |
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33 |
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34 const TInt KSlipDefaultMtu = 576; ///< default Maximum transmit unit |
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35 const TUint KSlipEndCh = 0300; ///< End of frame |
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36 const TUint KSlipEscCh = 0333; |
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37 const TUint KSlipEscEndCh = 0334; |
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38 const TUint KSlipEscEscCh = 0335; |
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39 const TUint KSlipWriterPrority = 20; |
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40 const TUint KSlipReaderPrority = 10; |
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41 |
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42 //////////////////////////////////////////////////////////////////////////////// |
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43 |
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44 enum TSlipPanic { PanicSlipAssert1, |
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45 PanicSlipAssert2, |
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46 PanicSlipAssert3, |
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47 PanicSlipAssert4, |
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48 PanicSlipAssert5, |
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49 PanicSlipAssert6, |
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50 PanicSlipAssert7, |
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51 PanicSlipAssert8 |
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52 |
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53 }; |
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54 void SlipPanic(TSlipPanic aPanic); |
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55 |
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56 enum TSlipFault {}; |
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57 |
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58 void SlipFault(TSlipFault aFault); |
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59 |
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60 //////////////////////////////////////////////////////////////////////////////// |
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61 // SLIP Protocol Factory |
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62 //////////////////////////////////////////////////////////////////////////////// |
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63 |
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64 NONSHARABLE_CLASS(CSlipIfFactory) : public CNifIfFactory |
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65 /** |
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66 @internalComponent |
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67 */ |
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68 { |
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69 protected: |
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70 virtual void InstallL(); |
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71 virtual CNifIfBase* NewInterfaceL(const TDesC& aName); |
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72 TInt Info(TNifIfInfo& aInfo, TInt aIndex) const; |
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73 }; |
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74 |
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75 //////////////////////////////////////////////////////////////////////////////// |
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76 // Slip Interface |
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77 //////////////////////////////////////////////////////////////////////////////// |
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78 |
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79 const TUint KSlipBufSize = 1024; |
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80 |
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81 class TSlipBuf : public TBuf8<KSlipBufSize> |
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82 /** |
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83 @internalComponent |
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84 */ |
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85 { |
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86 public: |
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87 #ifndef _DEBUG |
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88 inline const TUint8 &operator[](TInt aIndex) const |
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89 { return iBuf[aIndex]; } |
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90 inline TUint8 &operator[](TInt aIndex) |
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91 { return iBuf[aIndex]; } |
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92 #endif |
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93 }; |
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94 |
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95 const TUint KSlipIsUp = 0x01; |
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96 const TUint KSlipSendBusy = 0x02; |
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97 const TUint KSlipSendInUse = 0x04; |
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98 const TUint KSlipRecvEscPend = 0x08; |
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99 const TUint KSlipCommConfigOk = 0x10; |
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100 |
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101 NONSHARABLE_CLASS(CSlip) : public CNifIfLink, public MComm |
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102 /** |
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103 @internalComponent |
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104 */ |
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105 { |
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106 public: |
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107 CSlip(CNifIfFactory& aFactory); |
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108 ~CSlip(); |
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109 |
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110 virtual void BindL(TAny *aId); |
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111 virtual TInt State(); |
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112 virtual TInt Control(TUint aLevel,TUint aName,TDes8& aOption, TAny* aSource=0); |
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113 virtual TInt Send(RMBufChain& aPdu, TAny* aSource=0); |
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114 virtual TInt Start(); |
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115 virtual void Stop(TInt aReason, MNifIfNotify::TAction aAction); |
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116 virtual CNifIfBase* GetBinderL(const TDesC& aName); |
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117 virtual void Info(TNifIfInfo& aInfo) const; |
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118 virtual TInt Notification(TAgentToNifEventType aEvent, void * aInfo); |
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119 virtual void Restart(CNifIfBase* aIf); |
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120 static void FillInInfo(TNifIfInfo& aInfo); |
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121 // |
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122 void CommReadComplete(TInt aStatus); |
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123 void CommWriteComplete(TInt aStatus); |
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124 |
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125 // Slip Family |
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126 static void FillinInfo(TServerProtocolDesc &aEntry); |
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127 private: |
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128 void DoRecv(); |
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129 void DoSend(); |
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130 void LinkDown(TInt aReason); |
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131 TInt PacketModeOn(); |
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132 TInt PacketModeOff(); |
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133 TInt SpeedMetric(); |
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134 private: |
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135 TCommConfig iOrigConfig; |
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136 TUint iFlags; |
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137 CProtocolBase* iIpProtocol; |
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138 |
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139 /** Sender */ |
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140 CAsyncCallBack* iSendCallBack; |
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141 |
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142 RMBufPktQ iSendPktQ; |
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143 RMBufChain iSendPkt; |
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144 RMBuf* iSendMBuf; |
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145 TUint8* iSendMPtr; |
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146 TSlipBuf iSendBuf; |
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147 |
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148 TInt iSendMBufs; ///< Send current level |
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149 TInt iSendLoWat; ///< Send flow on level |
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150 TInt iSendHiWat; ///< Send flow off level |
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151 TSlipBuf iRecvBuf; ///< Receiver |
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152 |
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153 TInt iRecvLen; |
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154 RMBuf* iRecvMBuf; |
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155 TUint8* iRecvMPtr; |
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156 RMBufQ iRecvQ; |
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157 }; |
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158 |
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159 #endif |