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1 /* |
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2 * Copyright (c) 2005-2008 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 the License "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: Implementation of the WlanDot11IdleScanningMode class. |
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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 * %version: 19 % |
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20 */ |
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21 |
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22 #include "config.h" |
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23 #include "umacdot11idlescanningmode.h" |
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24 #include "umacscanfsmcntx.h" |
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25 #include "UmacContextImpl.h" |
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26 #include "UmacWsaWriteMib.h" |
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27 #include "UmacWsaScan.h" |
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28 #include "umacwhastopscan.h" |
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29 #include "umacwhatodot11typeconverter.h" |
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30 |
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31 #ifndef NDEBUG |
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32 const TInt8 WlanDot11IdleScanningMode::iName[] = "dot11-idlescanningmode"; |
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33 |
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34 const TUint8 WlanDot11IdleScanningMode::iStateName |
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35 [ESTATEMAX][KMaxStateStringLength] = |
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36 { |
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37 {"EINIT"}, |
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38 {"ESETSLEEPMODE"}, |
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39 {"EEXECUTESCANFSM"}, |
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40 {"ECONTINUEDOT11TRAVERSE"} |
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41 }; |
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42 |
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43 const TUint8 WlanDot11IdleScanningMode::iEventName |
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44 [EEVENTMAX][KMaxEventStringLength] = |
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45 { |
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46 {"ESTATEENTRY"}, |
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47 {"ETXCOMPLETE"}, |
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48 {"ESTARTSCANNINGMODE"}, |
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49 {"ESCANMODERUNNING"}, |
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50 {"ESTOPSCANNINGMODE"}, |
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51 {"ESCANNINGMODEEXIT"}, |
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52 {"EABORT"} |
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53 }; |
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54 #endif |
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55 |
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56 // ======== MEMBER FUNCTIONS ======== |
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57 |
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58 // ----------------------------------------------------------------------------- |
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59 // |
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60 // ----------------------------------------------------------------------------- |
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61 // |
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62 WlanDot11IdleScanningMode::~WlanDot11IdleScanningMode() |
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63 { |
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64 iCtxImpl = NULL; |
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65 iChannels = NULL; |
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66 iSSID = NULL; |
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67 iPimpl = NULL; |
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68 } |
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69 |
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70 // ----------------------------------------------------------------------------- |
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71 // |
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72 // ----------------------------------------------------------------------------- |
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73 // |
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74 void WlanDot11IdleScanningMode::Set( |
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75 WlanContextImpl& aCtxImpl ) |
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76 { |
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77 iCtxImpl = &aCtxImpl; |
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78 } |
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79 |
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80 // ----------------------------------------------------------------------------- |
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81 // |
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82 // ----------------------------------------------------------------------------- |
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83 // |
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84 void WlanDot11IdleScanningMode::Set( |
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85 TScanMode aMode, |
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86 const TSSID& aSSID, |
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87 TUint32 aScanRate, |
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88 SChannels& aChannels, |
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89 TUint32 aMinChannelTime, |
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90 TUint32 aMaxChannelTime, |
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91 TBool aSplitScan ) |
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92 { |
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93 // we can store pointers as oid parameters are guaranteed to be valid |
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94 // to the point the corresponding completion method is called |
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95 iMode = aMode; |
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96 iSSID = &aSSID; |
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97 iScanRate = aScanRate; |
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98 iChannels = &aChannels; |
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99 iMinChannelTime = aMinChannelTime; |
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100 iMaxChannelTime = aMaxChannelTime; |
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101 iSplitScan = aSplitScan; |
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102 } |
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103 |
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104 // ----------------------------------------------------------------------------- |
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105 // The internal state transition method. |
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106 // It is guaranteed by the FSM framework that no WHA command is pending |
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107 // when this method is entered |
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108 // ----------------------------------------------------------------------------- |
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109 // |
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110 void WlanDot11IdleScanningMode::ChangeInternalState( |
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111 WlanContextImpl& aCtxImpl, |
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112 TState aNewState ) |
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113 { |
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114 iState = aNewState; |
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115 Fsm( aCtxImpl, ESTATEENTRY ); |
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116 } |
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117 |
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118 // ----------------------------------------------------------------------------- |
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119 // The event dispatcher method. |
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120 // It is guaranteed by the FSM framework that no WHA command is pending |
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121 // when this method is entered |
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122 // ----------------------------------------------------------------------------- |
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123 // |
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124 void WlanDot11IdleScanningMode::Fsm( |
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125 WlanContextImpl& aCtxImpl, |
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126 TEvent aEvent ) |
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127 { |
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128 OsTracePrint( KScan, |
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129 (TUint8*)("UMAC * dot11-idlescanningmode * FSM EVENT") ); |
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130 #ifndef NDEBUG |
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131 OsTracePrint( KScan, (TUint8*)("event:")); |
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132 OsTracePrint( KScan, iEventName[aEvent] ); |
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133 OsTracePrint( KScan, (TUint8*)("state:")); |
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134 OsTracePrint( KScan, iStateName[iState] ); |
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135 #endif |
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136 |
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137 switch ( aEvent ) |
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138 { |
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139 case ESTATEENTRY: |
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140 OnStateEntryEvent( aCtxImpl ); |
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141 break; |
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142 case ETXCOMPLETE: |
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143 OnTxCompleteEvent( aCtxImpl ); |
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144 break; |
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145 case ESTARTSCANNINGMODE: |
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146 OnStartScanningModeEvent( aCtxImpl ); |
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147 break; |
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148 case ESCANMODERUNNING: |
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149 OnScanModeRunningEvent( aCtxImpl ); |
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150 break; |
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151 case ESTOPSCANNINGMODE: |
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152 OnStopScanningModeEvent( aCtxImpl ); |
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153 break; |
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154 case ESCANNINGMODEEXIT: |
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155 OnScanningModeExitEvent( aCtxImpl ); |
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156 break; |
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157 case EABORT: |
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158 OnAbortEvent( aCtxImpl ); |
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159 break; |
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160 default: |
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161 // catch internal FSM programming error |
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162 #ifndef NDEBUG |
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163 OsTracePrint( KErrorLevel, (TUint8*)("event:")); |
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164 OsTracePrint( KErrorLevel, iEventName[aEvent] ); |
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165 #endif |
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166 OsAssert( (TUint8*)("* UMAC * panic"), |
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167 (TUint8*)(WLAN_FILE), __LINE__ ); |
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168 break; |
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169 } |
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170 } |
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171 |
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172 // ----------------------------------------------------------------------------- |
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173 // Handler for the event. |
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174 // It is guaranteed by the FSM framework that no WHA command is pending |
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175 // when this method is entered |
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176 // ----------------------------------------------------------------------------- |
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177 // |
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178 void WlanDot11IdleScanningMode::OnStateEntryEvent( |
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179 WlanContextImpl& aCtxImpl ) |
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180 { |
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181 switch ( iState ) |
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182 { |
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183 case EINIT: |
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184 iPimpl = static_cast<WlanScanFsmCntx*> |
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185 (os_alloc( sizeof(WlanScanFsmCntx) )); |
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186 if ( iPimpl ) |
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187 { |
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188 // allocation success |
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189 new (iPimpl) WlanScanFsmCntx( *this ); |
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190 // start fsm traversal |
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191 if ( aCtxImpl.Reassociate() ) |
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192 { |
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193 // a roaming case |
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194 ChangeInternalState( aCtxImpl, EEXECUTESCANFSM ); |
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195 } |
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196 else |
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197 { |
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198 // not a roaming case |
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199 ChangeInternalState( aCtxImpl, ESETSLEEPMODE ); |
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200 } |
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201 } |
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202 else |
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203 { |
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204 // allocation failure |
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205 Fsm( aCtxImpl, EABORT ); |
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206 } |
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207 |
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208 break; |
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209 case ESETSLEEPMODE: |
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210 SetSleepMode( aCtxImpl ); |
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211 break; |
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212 case EEXECUTESCANFSM: |
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213 ExecuteScanFsm( aCtxImpl ); |
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214 break; |
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215 case ECONTINUEDOT11TRAVERSE: |
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216 ContinueDot11StateTraversal( aCtxImpl ); |
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217 break; |
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218 default: |
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219 // catch internal FSM programming error |
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220 #ifndef NDEBUG |
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221 OsTracePrint( KErrorLevel, (TUint8*)("state:")); |
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222 OsTracePrint( KErrorLevel, iStateName[iState] ); |
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223 #endif |
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224 OsAssert( (TUint8*)("* UMAC * panic"), |
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225 (TUint8*)(WLAN_FILE), __LINE__ ); |
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226 break; |
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227 } |
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228 } |
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229 |
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230 // ----------------------------------------------------------------------------- |
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231 // Handler for the event. |
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232 // It is guaranteed by the FSM framework that no WHA command is pending |
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233 // when this method is entered |
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234 // ----------------------------------------------------------------------------- |
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235 // |
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236 void WlanDot11IdleScanningMode::OnTxCompleteEvent( |
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237 WlanContextImpl& aCtxImpl ) |
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238 { |
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239 switch ( iState ) |
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240 { |
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241 case ESETSLEEPMODE: |
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242 ChangeInternalState( aCtxImpl, EEXECUTESCANFSM ); |
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243 break; |
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244 case EEXECUTESCANFSM: |
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245 // we are running the scan fsm |
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246 // and we have nothing to do here |
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247 break; |
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248 default: |
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249 // catch internal FSM programming error |
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250 #ifndef NDEBUG |
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251 OsTracePrint( KErrorLevel, (TUint8*)("state:")); |
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252 OsTracePrint( KErrorLevel, iStateName[iState] ); |
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253 #endif |
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254 OsAssert( (TUint8*)("* UMAC * panic"), |
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255 (TUint8*)(WLAN_FILE), __LINE__ ); |
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256 break; |
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257 } |
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258 } |
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259 |
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260 // ----------------------------------------------------------------------------- |
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261 // Handler for the event. |
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262 // It is guaranteed by the FSM framework that no WHA command is pending |
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263 // when this method is entered |
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264 // ----------------------------------------------------------------------------- |
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265 // |
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266 void WlanDot11IdleScanningMode::OnStartScanningModeEvent( |
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267 WlanContextImpl& aCtxImpl ) |
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268 { |
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269 // start the scanning mode |
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270 |
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271 // convert scan parameters to WHA types |
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272 // Note that we need to deallocate the memory from whaChannels |
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273 // - which is allocated in ConvertToWhaTypes() - when we are done |
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274 |
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275 WHA::SSSID* wha_ssid = |
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276 static_cast<WHA::SSSID*>(os_alloc( sizeof(WHA::SSSID) )); |
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277 if ( !wha_ssid ) |
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278 { |
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279 // memory allocation failue; that's fatal |
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280 Fsm( aCtxImpl, EABORT ); |
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281 return; |
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282 } |
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283 |
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284 WHA::SChannels* wha_channels( NULL ); |
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285 TUint8 wha_channelcount( 0 ); |
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286 |
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287 if ( !(WlanWhaToDot11TypeConverter::ConvertToWhaTypes( |
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288 aCtxImpl, |
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289 iSSID, |
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290 *wha_ssid, |
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291 iChannels, |
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292 iMinChannelTime, |
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293 iMaxChannelTime, |
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294 wha_channels, |
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295 wha_channelcount )) ) |
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296 { |
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297 // memory allocation failue; that's fatal |
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298 os_free( wha_ssid ); |
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299 Fsm( aCtxImpl, EABORT ); |
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300 } |
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301 else |
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302 { |
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303 // start the scanning process |
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304 |
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305 const TUint8 KNbrOfProbeReqsPerCh = 2; |
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306 const TUint8 KNoProbeReqs = 0; |
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307 const TUint8 KNbrOfSsids = 1; |
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308 const TUint8 KNoSsids = 0; |
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309 |
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310 // 1st set the context |
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311 aCtxImpl.WsaScan().Set( |
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312 aCtxImpl, |
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313 iScanRate, |
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314 iChannels->iBand, |
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315 wha_channelcount, |
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316 wha_channels, |
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317 WHA::EFgScan, |
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318 (iMode == EActiveScan) ? KNbrOfProbeReqsPerCh : KNoProbeReqs, |
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319 iSplitScan, |
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320 wha_ssid->iSSIDLength ? KNbrOfSsids : KNoSsids, |
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321 wha_ssid ); |
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322 |
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323 // change global state: entry procedure triggers action |
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324 ChangeState( aCtxImpl, |
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325 *this, // prev state |
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326 aCtxImpl.WsaScan() // next state |
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327 ); |
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328 |
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329 // as the parameters have been supplied we can now deallocate |
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330 os_free( wha_ssid ); |
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331 os_free( wha_channels ); |
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332 } |
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333 } |
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334 |
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335 // ----------------------------------------------------------------------------- |
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336 // Handler for the event. |
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337 // It is guaranteed by the FSM framework that no WHA command is pending |
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338 // when this method is entered |
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339 // ----------------------------------------------------------------------------- |
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340 // |
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341 void WlanDot11IdleScanningMode::OnScanModeRunningEvent( |
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342 WlanContextImpl& aCtxImpl ) const |
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343 { |
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344 // complete the scan request |
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345 |
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346 OsTracePrint( KScan, (TUint8*) |
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347 ("UMAC: WlanDot11IdleScanningMode::OnScanModeRunningEvent: Complete scan request") ); |
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348 OnOidComplete( aCtxImpl ); |
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349 } |
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350 |
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351 // ----------------------------------------------------------------------------- |
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352 // Handler for the event. |
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353 // It is guaranteed by the FSM framework that no WHA command is pending |
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354 // when this method is entered |
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355 // ----------------------------------------------------------------------------- |
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356 // |
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357 void WlanDot11IdleScanningMode::OnStopScanningModeEvent( |
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358 WlanContextImpl& aCtxImpl ) |
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359 { |
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360 // change global state: entry procedure triggers action |
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361 ChangeState( aCtxImpl, |
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362 *this, // prev state |
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363 aCtxImpl.WhaStopScan() // next state |
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364 ); |
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365 } |
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366 |
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367 // ----------------------------------------------------------------------------- |
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368 // Handler for the event. |
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369 // It is guaranteed by the FSM framework that no WHA command is pending |
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370 // when this method is entered |
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371 // ----------------------------------------------------------------------------- |
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372 // |
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373 void WlanDot11IdleScanningMode::OnScanningModeExitEvent( |
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374 WlanContextImpl& aCtxImpl ) |
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375 { |
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376 // scanning mode has stopped and so can we |
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377 |
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378 // request the next state (dot11IdleState) to inform the mgmt client about |
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379 // scan completion upon state entry |
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380 aCtxImpl.iStates.iIdleState.CompleteScanUponEntry(); |
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381 |
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382 ChangeInternalState( aCtxImpl, ECONTINUEDOT11TRAVERSE ); |
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383 } |
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384 |
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385 // --------------------------------------------------------- |
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386 // simulate macnotresponding error |
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387 // --------------------------------------------------------- |
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388 // |
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389 void WlanDot11IdleScanningMode::OnAbortEvent( |
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390 WlanContextImpl& aCtxImpl ) |
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391 { |
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392 OsTracePrint( KWarningLevel, |
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393 (TUint8*)("UMAC * dot11-idlescanningmode * abort") ); |
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394 |
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395 DoErrorIndication( aCtxImpl, WHA::KErrorMacNotResponding ); |
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396 } |
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397 |
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398 // ----------------------------------------------------------------------------- |
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399 // |
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400 // ----------------------------------------------------------------------------- |
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401 // |
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402 void WlanDot11IdleScanningMode::SetSleepMode( |
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403 WlanContextImpl& aCtxImpl ) |
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404 { |
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405 WHA::SsleepMode* mib |
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406 = static_cast<WHA::SsleepMode*> |
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407 (os_alloc( sizeof( WHA::SsleepMode ) )); |
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408 |
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409 if ( !mib ) |
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410 { |
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411 // this is fatal |
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412 Fsm( aCtxImpl, EABORT ); |
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413 return; |
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414 } |
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415 |
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416 mib->iMode = WHA::KPowerDownMode; |
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417 |
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418 WlanWsaWriteMib& wha_cmd = aCtxImpl.WsaWriteMib(); |
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419 wha_cmd.Set( |
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420 aCtxImpl, WHA::KMibSleepMode, sizeof(*mib), mib ); |
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421 |
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422 // change global state: entry procedure triggers action |
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423 ChangeState( aCtxImpl, |
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424 *this, // prev state |
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425 wha_cmd // next state |
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426 ); |
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427 |
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428 // as the parameters have been supplied we can now deallocate |
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429 os_free( mib ); |
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430 } |
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431 |
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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 void WlanDot11IdleScanningMode::ExecuteScanFsm( |
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437 WlanContextImpl& /*aCtxImpl*/ ) |
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438 { |
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439 // start scan fsm |
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440 iPimpl->Current().StartScanningMode( *iPimpl ); |
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441 } |
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442 |
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443 // ----------------------------------------------------------------------------- |
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444 // |
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445 // ----------------------------------------------------------------------------- |
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446 // |
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447 void WlanDot11IdleScanningMode::ContinueDot11StateTraversal( |
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448 WlanContextImpl& aCtxImpl ) |
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449 { |
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450 // return back to dot11idle |
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451 ChangeState( aCtxImpl, |
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452 *this, // prev state |
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453 aCtxImpl.iStates.iIdleState // next state |
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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 // Handler for WHA command response event. |
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459 // It is guaranteed by the global protocol fsm framework that no WHA command is |
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460 // pending when this method is entered |
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461 // ----------------------------------------------------------------------------- |
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462 // |
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463 void WlanDot11IdleScanningMode::OnWhaCommandResponse( |
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464 WlanContextImpl& aCtxImpl, |
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465 WHA::TCommandId aCommandId, |
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466 WHA::TStatus /*aStatus*/, |
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467 const WHA::UCommandResponseParams& /*aCommandResponseParams*/, |
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468 TUint32 /*aAct*/ ) |
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469 { |
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470 if ( aCommandId == WHA::EScanCommandResponse ) |
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471 { |
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472 OsTracePrint( KScan, (TUint8*)("UMAC * OnScanningModeStarted")); |
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473 |
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474 // morph event to the scan fsm |
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475 iPimpl->Current().OnScanningModeStarted( *iPimpl ); |
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476 } |
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477 else if ( aCommandId == WHA::EStopScanResponse ) |
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478 { |
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479 // complete the stop scan request |
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480 |
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481 OsTracePrint( KScan, (TUint8*) |
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482 ("UMAC: WlanDot11IdleScanningMode::OnWhaCommandResponse: complete stop scan request")); |
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483 |
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484 OnOidComplete( aCtxImpl ); |
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485 } |
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486 else |
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487 { |
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488 // has to be the write mib command response. |
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489 // We have nothing to do here |
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490 } |
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491 } |
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492 |
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493 // ----------------------------------------------------------------------------- |
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494 // Handler for WHA command completion event. |
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495 // It is guaranteed by the global protocol fsm framework that no WHA command is |
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496 // pending when this method is entered |
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497 // ----------------------------------------------------------------------------- |
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498 // |
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499 TBool WlanDot11IdleScanningMode::CommandComplete( |
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500 WlanContextImpl& /*aCtxImpl*/, |
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501 WHA::TCompleteCommandId aCompleteCommandId, |
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502 WHA::TStatus /*aStatus*/, |
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503 const WHA::UCommandCompletionParams& /*aCommandCompletionParams*/ ) |
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504 { |
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505 if ( aCompleteCommandId != WHA::EScanComplete ) |
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506 { |
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507 // implementation error as this can be the only one |
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508 OsAssert( (TUint8*)("UMAC * panic"), (TUint8*)(WLAN_FILE), __LINE__ ); |
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509 } |
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510 |
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511 OsTracePrint( KScan, (TUint8*)("UMAC * OnScanningModeStopped")); |
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512 |
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513 // morph event to scan fsm |
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514 iPimpl->Current().OnScanningModeStopped( *iPimpl ); |
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515 |
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516 // as scanning mode has ended we will change dot11 state. |
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517 // Signal it to caller |
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518 return ETrue; |
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519 } |
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520 |
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521 // ----------------------------------------------------------------------------- |
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522 // |
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523 // ----------------------------------------------------------------------------- |
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524 // |
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525 TAny* WlanDot11IdleScanningMode::RequestForBuffer( |
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526 WlanContextImpl& aCtxImpl, |
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527 TUint16 aLength ) |
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528 { |
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529 return aCtxImpl.GetRxBuffer( aLength ); |
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530 } |
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531 |
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532 // ----------------------------------------------------------------------------- |
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533 // |
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534 // ----------------------------------------------------------------------------- |
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535 // |
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536 void WlanDot11IdleScanningMode::ReceivePacket( |
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537 WlanContextImpl& aCtxImpl, |
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538 WHA::TStatus aStatus, |
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539 const void* aFrame, |
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540 TUint16 aLength, |
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541 WHA::TRate /*aRate*/, |
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542 WHA::TRcpi aRcpi, |
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543 WHA::TChannelNumber /*aChannel*/, |
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544 TUint8* aBuffer, |
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545 TUint32 /*aFlags*/ ) |
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546 { |
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547 if ( aStatus == WHA::KSuccess ) |
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548 { |
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549 // frame reception success |
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550 |
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551 const Sdot11MacHeader* hdr |
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552 = reinterpret_cast<Sdot11MacHeader*>(const_cast<TAny*>(aFrame)); |
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553 |
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554 OsTracePrint( KRxFrame, (TUint8*) |
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555 ("UMAC: dot11-idlescanningmode * frame rx * frame type: 0x%02x"), |
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556 hdr->iFrameControl.iType ); |
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557 |
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558 if ( (hdr->iFrameControl.iType |
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559 == E802Dot11FrameTypeBeacon) |
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560 || (hdr->iFrameControl.iType |
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561 == E802Dot11FrameTypeProbeResp) ) |
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562 { |
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563 // as we have a beacon or probe response frame we will pass it to |
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564 // the client of the mgmt interface |
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565 XferDot11FrameToMgmtClient( |
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566 aCtxImpl, |
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567 aFrame, |
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568 aLength, |
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569 aRcpi, |
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570 aBuffer ); |
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571 } |
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572 else |
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573 { |
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574 // other than scan frame received. This may be legal if the frame |
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575 // was received before receiving WHA::CommandResponse for WHA::Scan |
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576 // cmd. However, in other cases it may be an implementation error |
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577 // in the underlying adaptation layer. In any case the frame is not |
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578 // applicable for us as we are doing dot11idle mode scan (we are |
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579 // not connected) and we will ignore it |
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580 OsTracePrint( KRxFrame | KWarningLevel, (TUint8*) |
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581 ("UMAC: WlanDot11IdleScanningMode::ReceivePacket: WARNING: Other than scan frame received. Frame type: 0x%02x"), |
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582 hdr->iFrameControl.iType ); |
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583 |
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584 // release the Rx buffer |
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585 aCtxImpl.iUmac.MarkRxBufFree( aBuffer ); |
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586 } |
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587 } |
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588 else |
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589 { |
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590 // frame reception failure |
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591 OsTracePrint( KErrorLevel, (TUint8*) |
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592 ("UMAC * dot11-idlescanningmode * frame rx failure * status: %d"), |
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593 aStatus ); |
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594 |
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595 // release the Rx buffer |
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596 aCtxImpl.iUmac.MarkRxBufFree( aBuffer ); |
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597 } |
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598 } |
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599 |
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600 // ----------------------------------------------------------------------------- |
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601 // |
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602 // ----------------------------------------------------------------------------- |
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603 // |
|
604 void WlanDot11IdleScanningMode::Entry( |
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605 WlanContextImpl& aCtxImpl ) |
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606 { |
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607 if ( aCtxImpl.WsaCmdActive() ) |
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608 { |
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609 // sanity checking code |
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610 OsAssert( (TUint8*)("UMAC * panic"), (TUint8*)(WLAN_FILE), __LINE__ ); |
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611 } |
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612 |
|
613 // we don't want to do full event dispatching here as we want |
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614 // to run this dot11 state in non pre-emptive mode. |
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615 // However, we do want to handle the scan complete event in case it has |
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616 // been registered |
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617 if ( aCtxImpl.CommandCompletionEventRegistered( WHA::EScanComplete ) ) |
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618 { |
|
619 OsTracePrint( KScan, (TUint8*) |
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620 ("UMAC: WlanDot11IdleScanningMode::Entry: Scan complete event registered") ); |
|
621 |
|
622 aCtxImpl.DispatchCommandCompletionEvent(); |
|
623 // in this case we have actually already changed to another state |
|
624 // so there's nothing more for us to do here |
|
625 } |
|
626 else |
|
627 { |
|
628 // scan complete event not registered. Continue in the normal fashion |
|
629 |
|
630 if ( iState != EINIT ) |
|
631 { |
|
632 // this is NOT the start of the the FSM actions |
|
633 // note that we send the ETXCOMPLETE event as the states |
|
634 // that wait for it are the only ones that can be interrupted |
|
635 // as they are asynchronous operations by nature |
|
636 // and wait for corresponding WHA completion method |
|
637 Fsm( aCtxImpl, ETXCOMPLETE ); |
|
638 } |
|
639 else |
|
640 { |
|
641 // this is the start of the FSM actions |
|
642 Fsm( aCtxImpl, ESTATEENTRY ); |
|
643 } |
|
644 } |
|
645 } |
|
646 |
|
647 // ----------------------------------------------------------------------------- |
|
648 // |
|
649 // ----------------------------------------------------------------------------- |
|
650 // |
|
651 void WlanDot11IdleScanningMode::Exit( |
|
652 WlanContextImpl& /*aCtxImpl*/ ) |
|
653 { |
|
654 // reset fsm |
|
655 iState = EINIT; |
|
656 |
|
657 // get rid of scan fsm implementation |
|
658 iPimpl->~WlanScanFsmCntx(); |
|
659 os_free( iPimpl ); |
|
660 iPimpl = NULL; |
|
661 } |
|
662 |
|
663 // ----------------------------------------------------------------------------- |
|
664 // |
|
665 // ----------------------------------------------------------------------------- |
|
666 // |
|
667 TBool WlanDot11IdleScanningMode::StopScan( WlanContextImpl& /*aCtxImpl*/ ) |
|
668 { |
|
669 // inform scan fsm that scanning mode stop is desired |
|
670 iPimpl->Current().StopScanningMode( *iPimpl ); |
|
671 // indicate that a state change has occurred |
|
672 return ETrue; |
|
673 } |
|
674 |
|
675 #ifndef NDEBUG |
|
676 // ----------------------------------------------------------------------------- |
|
677 // |
|
678 // ----------------------------------------------------------------------------- |
|
679 // |
|
680 const TInt8* WlanDot11IdleScanningMode::GetStateName( |
|
681 TUint8& aLength ) const |
|
682 { |
|
683 aLength = sizeof( iName ); |
|
684 return iName; |
|
685 } |
|
686 #endif |
|
687 |
|
688 // ----------------------------------------------------------------------------- |
|
689 // Handler for scan fsm event. |
|
690 // It is guaranteed by the FSM framework that no WHA command is pending |
|
691 // when this method is entered |
|
692 // ----------------------------------------------------------------------------- |
|
693 // |
|
694 void WlanDot11IdleScanningMode::OnScanFsmEvent( |
|
695 MWlanScanFsmCb::TEvent aEvent ) |
|
696 { |
|
697 OsTracePrint( KScan, (TUint8*) |
|
698 ("UMAC: * dot11-idlescanningmode * SCAN FSM EVENT: %d"), aEvent ); |
|
699 |
|
700 // do what the scan fsm desires |
|
701 switch( aEvent ) |
|
702 { |
|
703 case EFSMSTARTSCANNINGMODE: |
|
704 // scanning mode start desired |
|
705 Fsm( *iCtxImpl, ESTARTSCANNINGMODE ); |
|
706 break; |
|
707 case EFSMSCANMODERUNNING: |
|
708 // scanning mode is running |
|
709 Fsm( *iCtxImpl, ESCANMODERUNNING ); |
|
710 break; |
|
711 case EFSMSTOPSCANNINGMODE: |
|
712 // scanning mode stop desired |
|
713 Fsm( *iCtxImpl, ESTOPSCANNINGMODE ); |
|
714 break; |
|
715 |
|
716 case EFSMSCANMODESTOPPED: |
|
717 // scanning mode has stopped |
|
718 Fsm( *iCtxImpl, ESCANNINGMODEEXIT ); |
|
719 break; |
|
720 default: |
|
721 // catch scan FSM programming error |
|
722 OsTracePrint( KErrorLevel, |
|
723 (TUint8*)("UMAC: scan fsm event: :%d"), aEvent); |
|
724 OsAssert( (TUint8*)("UMAC: panic"), |
|
725 (TUint8*)(WLAN_FILE), __LINE__ ); |
|
726 break; |
|
727 } |
|
728 } |