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1 // Copyright (c) 2003-2009 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 // Implements the Synchronous SAP class |
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15 // |
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16 // |
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17 |
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18 #include <bluetooth/logger.h> |
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19 #include <bt_sock.h> |
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20 #include "SCOSAP.h" |
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21 #include "physicallinksmanager.h" |
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22 #include "physicallinks.h" |
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23 #include "hcifacade.h" |
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24 #include "linkutil.h" |
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25 #include "linkmuxer.h" |
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26 |
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27 #ifdef __FLOG_ACTIVE |
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28 _LIT8(KLogComponent, LOG_COMPONENT_LINKMGR); |
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29 #endif |
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30 |
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31 |
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32 CBTSynchronousLink::CBTSynchronousLink(CPhysicalLinksManager& aLinksMan, CPhysicalLink* aPhysicalLink, TLinkType aLinkType) |
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33 : CBTBasebandSAP(aLinksMan, aPhysicalLink), iLinkType(aLinkType) |
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34 { |
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35 LOG2(_L("Creating sync SAP 0x%08x, type %d"), this, aLinkType); |
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36 iState = &aLinksMan.LinkManagerProtocol(). |
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37 SyncStateFactory().GetState(CSyncLinkStateFactory::EClosed); |
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38 } |
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39 |
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40 void CBTSynchronousLink::ConstructL() |
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41 { |
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42 CBTBasebandSAP::ConstructL(); |
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43 } |
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44 |
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45 CBTSynchronousLink::~CBTSynchronousLink() |
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46 { |
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47 LOG2(_L("Destroying sync SAP 0x%08x, iPhysicalLink 0x%08x"), this, iPhysicalLink); |
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48 |
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49 /* |
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50 The ASSERT below has been commented due to an issue with ESock. |
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51 |
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52 During a normal shutdown, a CBTSynchronousLink will always unbind from the physical link before |
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53 calling CanClose(). However automated tests have shown that there is no guarantee that during a |
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54 normal shutdown ESock will wait until the SAP has called CanClose() before deleting it. If |
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55 the socket is closed whilst ESock is waiting for the CanClose() it will immediately delete the |
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56 SAP (and complete the Shutdown request with KErrCancel). In this case the SAP will still be |
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57 bound to a physical link. |
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58 |
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59 If the ESock issue is rectified, the ASSERT should be reinstated. |
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60 |
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61 |
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62 ASSERT(!iPhysicalLink); |
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63 */ |
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64 |
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65 iState->Deletion(*this); |
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66 |
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67 ReleaseAndUnbind(); |
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68 } |
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69 |
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70 void CBTSynchronousLink::ReleaseAndUnbind() |
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71 /** |
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72 NB If the physical link is unbound, and the SCO packet type is |
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73 already ENoSCOLink, this function will do nothing! |
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74 */ |
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75 { |
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76 LOG1(_L("CBTSyncLink (0x%08x): Release and unbind"), this); |
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77 |
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78 if(iPhysicalLink) |
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79 { |
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80 iPhysicalLink->UndoOverridePark(); |
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81 } |
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82 UnbindLink(iLinkType); //sets iPhysicalLink to NULL |
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83 } |
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84 |
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85 void CBTSynchronousLink::PhysicalLinkChange(const TBTBasebandEventNotification& IF_FLOGGING(aEvent), CPhysicalLink& __DEBUG_ONLY(aPhysicalLink)) |
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86 { |
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87 __ASSERT_DEBUG(&aPhysicalLink == iPhysicalLink, Panic(EBTSCOSAPWrongPhysicalLink)); |
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88 |
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89 // spec says should never have got parked with sco link |
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90 //__ASSERT_DEBUG(!(aEvent.EventType() & ENotifyParkMode), Panic(EBTSCOSAPExistsWhenParking)); |
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91 // |
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92 // Above ASSERT too strong as races are occuring. Log, but 'ignore'. |
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93 |
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94 #ifdef __FLOG_ACTIVE |
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95 if (!(aEvent.EventType() & ENotifyParkMode)) |
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96 { |
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97 LOG(_L("Sync SAP: Park request received with an active eSCO link. Likely to be a race.")); |
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98 } |
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99 #endif |
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100 } |
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101 |
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102 void CBTSynchronousLink::AutoBind() |
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103 /** |
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104 Pick an appropriate local port. |
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105 **/ |
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106 { |
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107 } |
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108 |
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109 TInt CBTSynchronousLink::SetLocalName(TSockAddr& /*aAddr*/) |
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110 /** |
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111 Override KErrNotSupported in base class. |
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112 */ |
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113 { |
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114 return KErrNone; |
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115 } |
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116 |
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117 void CBTSynchronousLink::Start() |
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118 { |
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119 iState->Start(*this); |
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120 } |
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121 |
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122 void CBTSynchronousLink::Timeout(TBasebandTimeout aTimeout) |
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123 { |
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124 iState->Timeout(*this, aTimeout); |
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125 } |
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126 |
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127 TInt CBTSynchronousLink::SetRemName(TSockAddr& aAddr) |
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128 { |
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129 TBTSockAddr bbAddr(aAddr); // convert |
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130 iRemoteDev=bbAddr.BTAddr(); |
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131 |
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132 return KErrNone; // to avoid race conditions we check for ACL later |
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133 } |
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134 |
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135 void CBTSynchronousLink::ActiveOpen() |
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136 /** |
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137 Attach SCO link - the packet type should have been set by this stage |
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138 **/ |
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139 { |
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140 iState->ActiveOpen(*this); |
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141 } |
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142 |
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143 void CBTSynchronousLink::DoActiveOpenL() |
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144 { |
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145 // proceed with creating the SCO link, but first check that phy exists |
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146 CPhysicalLink* foundPhysicalLink = iLinksMan.FindPhysicalLink(iRemoteDev); |
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147 |
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148 if (!foundPhysicalLink) |
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149 { |
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150 // cannot do this until baseband is up...SCO Transports aren't allowed to instantiate |
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151 // PHYs |
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152 User::Leave(KErrNotReady); |
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153 } |
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154 else |
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155 { |
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156 if (foundPhysicalLink->HasSyncLink()) |
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157 { |
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158 User::Leave(KErrInUse); |
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159 } |
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160 |
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161 // go and actually make the link |
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162 if(!IsLinkProbablyPossible()) |
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163 { |
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164 User::Leave(KErrOverflow); |
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165 } |
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166 foundPhysicalLink->OverridePark(); |
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167 BindLink(iLinkType, *foundPhysicalLink); |
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168 |
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169 //Initiate a SCO connection with user specified packet types. all types will be allowed |
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170 //if SetOption has not been called. |
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171 TInt err = MakeConnection(foundPhysicalLink); |
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172 if (err) |
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173 { |
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174 UnbindLink(iLinkType); |
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175 User::Leave(err); |
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176 } |
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177 } |
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178 } |
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179 |
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180 TInt CBTSynchronousLink::PassiveOpen(TUint aQueSize) |
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181 /** |
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182 Record ourselves as willing to accept a SCO link (possibly of the CoD we want) |
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183 **/ |
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184 { |
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185 LOG1(_L("CBTSyncLink (0x%08x): PassiveOpen"), this); |
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186 return iState->PassiveOpen(*this, aQueSize); |
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187 } |
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188 |
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189 TUint CBTSynchronousLink::Write(const TDesC8& aData, TUint aOptions, TSockAddr* aAddr) |
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190 { |
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191 return iState->Write(*this, aData, aOptions, aAddr); |
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192 } |
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193 |
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194 void CBTSynchronousLink::PacketsSent(THCIConnHandle /*aHandle*/, TUint16 /*aNumPackets*/) |
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195 { |
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196 // ignore - no need to unblock socket |
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197 } |
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198 |
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199 TBool CBTSynchronousLink::ConnectRequest(const TBTConnect& aSCOLink, const CPhysicalLink& aPhysicalLink) |
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200 { |
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201 return iState->ConnectRequest(*this, aSCOLink, aPhysicalLink); |
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202 } |
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203 |
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204 void CBTSynchronousLink::GetData(TDes8& aDesc,TUint /*aOptions*/,TSockAddr* /*aAddr*/) |
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205 { |
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206 // return the packet - we only have one - if other stuff has got overwritten |
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207 // so be it - we're going for synchronicity... |
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208 aDesc = InboundFrame(); |
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209 } |
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210 |
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211 void CBTSynchronousLink::ConnectComplete(const TBTConnect& aSCOLink) |
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212 { |
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213 TBTSyncConnectOpts SCODefaultOpts(KSCODefaultTransmissionInterval, KSCODefaultRetransmissionWindow, |
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214 KSCODefaultRxPacketLength, KSCODefaultTxPacketLength, KSCODefaultAirMode); |
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215 |
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216 SyncConnectComplete(aSCOLink, SCODefaultOpts); |
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217 } |
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218 |
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219 void CBTSynchronousLink::SyncConnectComplete(const TBTConnect& aSCOLink, const TBTSyncConnectOpts& aSyncOpts) |
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220 { |
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221 iState->ConnectComplete(*this, aSCOLink, aSyncOpts); |
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222 } |
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223 |
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224 void CBTSynchronousLink::Disconnection() |
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225 { |
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226 LOG2(_L("CBTSyncLink (0x%08x): disconnection on handle %d"), this, iHandle); |
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227 iState->Disconnection(*this); |
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228 } |
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229 |
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230 void CBTSynchronousLink::ParentClosing() |
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231 { |
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232 iState->ParentClosing(*this); |
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233 } |
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234 |
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235 void CBTSynchronousLink::DataReceived(THCIConnHandle __DEBUG_ONLY(aConnH), TUint8 /*aIgnore*/, const TDesC8& aData) |
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236 { |
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237 __ASSERT_DEBUG(aConnH == Handle(), Panic(EBTSCOSAPWrongSCOSAP)); |
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238 iState->DataReceived(*this, aData); |
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239 } |
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240 |
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241 void CBTSynchronousLink::Error(TInt aErr) |
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242 { |
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243 iState->Error(*this, aErr); |
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244 } |
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245 |
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246 void CBTSynchronousLink::Shutdown(TCloseType aClose) |
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247 /** |
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248 Detach SCO |
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249 **/ |
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250 { |
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251 LOG2(_L("CBTSyncLink (0x%08x): shutdown no data on handle %d"), this, iHandle); |
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252 iState->Shutdown(*this, aClose); |
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253 } |
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254 |
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255 void CBTSynchronousLink::Shutdown(TCloseType aClose, const TDesC8& /*aDisconnectionData*/) |
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256 /** |
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257 Detach SCO - ESock seems to send us through this way |
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258 whatever the client request has been. The overload above probably does |
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259 not need implementing. |
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260 **/ |
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261 { |
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262 LOG2(_L("CBTSyncLink (0x%08x): shutdown on handle %d"), this, iHandle); |
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263 iState->Shutdown(*this, aClose); |
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264 } |
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265 |
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266 TBool CBTSynchronousLink::IsIdle() const |
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267 { |
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268 return iState->IsIdle(); |
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269 } |
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270 |
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271 TBool CBTSynchronousLink::IsOpen() const |
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272 { |
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273 return iState->IsOpen(); |
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274 } |
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275 |
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276 TInt CBTSynchronousLink::CommonShutdown() |
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277 { |
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278 // not common to all baseband SAPs - only for closing SCO links at moment |
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279 // since PhysicalLink object looks after the PHY, and ACL goes up/down with that |
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280 TRAPD(err, iLinksMan.HCIFacade().DisconnectL(Handle(), static_cast<THCIErrorCode>(KActiveDisconnectReason))); |
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281 return err; |
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282 } |
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283 |
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284 TBool CBTSynchronousLink::ConnectPending() const |
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285 { |
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286 return iState->IsConnectPending(); |
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287 } |
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288 |
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289 |
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290 |
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291 //---------------------------------------------------------------------------------- |
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292 // STATE FACTORY |
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293 //---------------------------------------------------------------------------------- |
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294 |
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295 CSyncLinkStateFactory* CSyncLinkStateFactory::NewL() |
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296 { |
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297 CSyncLinkStateFactory* ret=new (ELeave) CSyncLinkStateFactory(); |
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298 CleanupStack::PushL(ret); |
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299 ret->ConstructL(); |
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300 CleanupStack::Pop(); |
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301 return ret; |
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302 } |
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303 |
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304 void CSyncLinkStateFactory::ConstructL() |
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305 { |
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306 iStates[EClosed] =new (ELeave) TSCOLinkStateClosed(*this); |
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307 iStates[EWaitForSCO] =new (ELeave) TSCOLinkStateWaitForSCO(*this); |
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308 iStates[EListening] =new (ELeave) TSCOLinkStateListening(*this); |
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309 iStates[EAccepting] =new (ELeave) TSCOLinkStateAccepting(*this); |
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310 iStates[EWaitForStart] =new (ELeave) TSCOLinkStateWaitForStart(*this); |
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311 iStates[EWaitForStartError] =new (ELeave) TSCOLinkStateWaitForStartError(*this); |
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312 iStates[EOpen] =new (ELeave) TSCOLinkStateOpen(*this); |
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313 iStates[EClosing] =new (ELeave) TSCOLinkStateClosing(*this); |
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314 } |
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315 |
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316 CSyncLinkStateFactory::~CSyncLinkStateFactory() |
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317 { |
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318 iStates.DeleteAll(); |
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319 } |
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320 |
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321 TSyncLinkState& CSyncLinkStateFactory::GetState(CSyncLinkStateFactory::TSyncLinkStates aState) |
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322 { |
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323 __ASSERT_DEBUG(iStates[aState], Panic(ELinkMgrBadSCOState)); |
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324 return *iStates[aState]; |
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325 } |
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326 |
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327 TInt CSyncLinkStateFactory::StateIndex(const TSyncLinkState* aState) const |
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328 { |
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329 TInt state; |
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330 for (state = 0; state < ESyncLinkMaxState; state++) |
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331 { |
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332 if (iStates[state] == aState) |
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333 { |
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334 return state; |
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335 } |
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336 } |
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337 |
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338 return KUnknownState; |
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339 } |
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340 |
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341 |
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342 |
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343 |
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344 //---------------------------------------------------------------------------------- |
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345 // STATES |
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346 //---------------------------------------------------------------------------------- |
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347 |
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348 TSyncLinkState::TSyncLinkState(CSyncLinkStateFactory& aFactory) |
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349 : iFactory(aFactory) |
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350 { |
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351 } |
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352 |
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353 void TSyncLinkState::PanicInState(TLinkPanic aPanic) const |
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354 { |
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355 Panic(aPanic, iFactory.StateIndex(this)); |
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356 } |
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357 |
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358 void TSyncLinkState::ChangeState(CBTSynchronousLink& aContext, CSyncLinkStateFactory::TSyncLinkStates aState) const |
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359 { |
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360 aContext.iState->Exit(aContext); |
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361 |
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362 #ifdef __FLOG_ACTIVE |
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363 TSyncLinkState* state=&iFactory.GetState(aState); |
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364 LOG2(_L("SCOLink: State %S -> %S"), &aContext.iState->iName, &state->iName); |
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365 #endif //__FLOG_ACTIVE |
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366 aContext.iState=&iFactory.GetState(aState); |
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367 |
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368 aContext.iState->Enter(aContext); |
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369 } |
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370 |
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371 void TSyncLinkState::Enter(CBTSynchronousLink& /*aContext*/) const |
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372 { |
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373 // do nothing |
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374 } |
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375 |
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376 void TSyncLinkState::Deletion(CBTSynchronousLink& /*aContext*/) const |
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377 { |
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378 PanicInState(EBTSCOSAPUnexpectedEvent); |
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379 } |
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380 |
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381 void TSyncLinkState::Exit(CBTSynchronousLink& /*aContext*/) const |
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382 { |
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383 // do nothing |
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384 } |
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385 |
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386 void TSyncLinkState::Timeout(CBTSynchronousLink& /*aContext*/, TBasebandTimeout /*aTimeout*/) const |
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387 { |
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388 PanicInState(EBTSCOSAPUnexpectedEvent); |
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389 } |
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390 |
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391 void TSyncLinkState::Shutdown(CBTSynchronousLink& /*aContext*/, CServProviderBase::TCloseType /*aCloseType*/) const |
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392 { |
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393 PanicInState(EBTSCOSAPUnexpectedEvent); |
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394 } |
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395 |
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396 TInt TSyncLinkState::PassiveOpen(CBTSynchronousLink& /*aContext*/, TUint /*aQueSize*/) const |
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397 { |
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398 PanicInState(EBTSCOSAPUnexpectedEvent); |
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399 return KErrNotSupported; |
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400 } |
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401 |
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402 void TSyncLinkState::ActiveOpen(CBTSynchronousLink& /*aContext*/) const |
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403 { |
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404 PanicInState(EBTSCOSAPUnexpectedEvent); |
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405 } |
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406 |
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407 TBool TSyncLinkState::ConnectRequest(CBTSynchronousLink& /*aContext*/, const TBTConnect& /*aSCOLink*/, const CPhysicalLink& /*aPhysicalLink*/) const |
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408 { |
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409 #ifdef _DEBUG |
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410 PanicInState(EBTSCOSAPUnexpectedEvent); //listener code could be suspect |
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411 #endif |
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412 return EFalse; |
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413 } |
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414 |
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415 void TSyncLinkState::Error(CBTSynchronousLink& /*aContext*/, TInt __DEBUG_ONLY(aErr)) const |
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416 { |
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417 // Don't propogate the error as listeners don't care if the hardware has gone down |
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418 __ASSERT_DEBUG(aErr==KErrHardwareNotAvailable||aErr==EHostSecurityRejection, PanicInState(EBTSCOSAPUnexpectedEvent)); |
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419 } |
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420 |
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421 void TSyncLinkState::ConnectComplete(CBTSynchronousLink& /*aContext*/, const TBTConnect& /*aConnect*/, const TBTSyncConnectOpts& /*aSyncOpts*/) const |
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422 { |
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423 // eat unexpected HW event |
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424 } |
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425 |
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426 void TSyncLinkState::Disconnection(CBTSynchronousLink& /*aContext*/) const |
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427 { |
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428 // eat unexpected HW event |
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429 } |
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430 |
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431 void TSyncLinkState::DataReceived(CBTSynchronousLink& /*aContext*/, const TDesC8& /*aData*/) const |
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432 { |
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433 // dump data |
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434 } |
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435 |
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436 void TSyncLinkState::PacketTypeChange(CBTSynchronousLink& /*aContext*/, THCIErrorCode /*aErr*/, THCIConnHandle /*aConnH*/, TUint16 /*aNewPacket*/) const |
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437 { |
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438 PanicInState(EBTSCOSAPUnexpectedEvent); |
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439 } |
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440 |
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441 void TSyncLinkState::Start(CBTSynchronousLink& /*aContext*/) const |
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442 { |
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443 PanicInState(EBTSCOSAPUnexpectedEvent); |
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444 } |
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445 |
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446 TUint TSyncLinkState::Write(CBTSynchronousLink& /*aContext*/, const TDesC8& /*aData*/, TUint /*aOptions*/, TSockAddr* /*aAddr*/) const |
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447 { |
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448 PanicInState(EBTSCOSAPUnexpectedEvent); |
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449 return 0; |
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450 } |
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451 |
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452 TBool TSyncLinkState::IsIdle() const |
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453 { |
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454 return EFalse; |
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455 } |
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456 |
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457 TBool TSyncLinkState::IsOpen() const |
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458 { |
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459 return EFalse; |
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460 } |
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461 |
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462 void TSyncLinkState::ParentClosing(CBTSynchronousLink& /*aContext*/) const |
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463 { |
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464 // Swallow the event. |
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465 } |
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466 |
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467 TBool TSyncLinkState::IsConnectPending() const |
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468 { |
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469 return EFalse; |
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470 } |
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471 |
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472 //---------------------------------------------------------------------------------- |
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473 |
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474 TSCOLinkStateClosed::TSCOLinkStateClosed(CSyncLinkStateFactory& aFactory) |
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475 : TSyncLinkState(aFactory) |
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476 { |
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477 STATENAME("TSCOLinkStateClosed"); |
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478 } |
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479 |
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480 void TSCOLinkStateClosed::Enter(CBTSynchronousLink& aContext) const |
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481 { |
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482 aContext.ReleaseAndUnbind(); |
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483 } |
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484 |
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485 void TSCOLinkStateClosed::Start(CBTSynchronousLink& /*aContext*/) const |
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486 { |
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487 //gulp |
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488 } |
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489 |
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490 void TSCOLinkStateClosed::ActiveOpen(CBTSynchronousLink& aContext) const |
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491 { |
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492 TRAPD(err, aContext.DoActiveOpenL()); |
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493 if (err) |
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494 { |
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495 aContext.Socket()->Error(err, MSocketNotify::EErrorConnect); |
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496 } |
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497 else |
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498 { |
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499 ChangeState(aContext, CSyncLinkStateFactory::EWaitForSCO); |
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500 } |
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501 } |
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502 |
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503 TBool TSCOLinkStateClosed::IsIdle() const |
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504 { |
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505 return ETrue; |
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506 } |
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507 |
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508 |
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509 TInt TSCOLinkStateClosed::PassiveOpen(CBTSynchronousLink& aContext, TUint /*aQueSize*/) const |
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510 { |
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511 // need to attach to the PHY |
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512 |
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513 TInt err = aContext.iLinksMan.AddListener(aContext, aContext.iLinkType); |
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514 |
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515 if (err == KErrNone) |
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516 { |
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517 ChangeState(aContext, CSyncLinkStateFactory::EListening); |
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518 } |
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519 |
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520 return err; |
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521 } |
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522 |
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523 void TSCOLinkStateClosed::Shutdown(CBTSynchronousLink& aContext, CServProviderBase::TCloseType aCloseType) const |
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524 { |
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525 LOG(_L("CBTSyncLink: closed state shutdown, immediate")); |
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526 if (aCloseType == CServProviderBase::ENormal) |
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527 { |
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528 aContext.Socket()->CanClose(); // tell socket it's fine to go |
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529 } |
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530 } |
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531 |
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532 |
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533 void TSCOLinkStateClosed::Deletion(CBTSynchronousLink& /*aContext*/) const |
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534 { |
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535 // allowed |
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536 } |
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537 |
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538 void TSCOLinkStateClosed::Disconnection(CBTSynchronousLink& /*aContext*/) const |
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539 { |
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540 //discard |
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541 } |
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542 |
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543 //---------------------------------------------------------------------------------- |
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544 |
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545 TSCOLinkStateWaitForSCO::TSCOLinkStateWaitForSCO(CSyncLinkStateFactory& aFactory) |
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546 : TSyncLinkState(aFactory) |
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547 { |
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548 STATENAME("TSCOLinkStateWaitForSCO"); |
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549 } |
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550 |
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551 |
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552 void TSCOLinkStateWaitForSCO::ConnectComplete(CBTSynchronousLink& aContext, const TBTConnect& aSCOInfo, const TBTSyncConnectOpts& aSyncOpts) const |
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553 { |
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554 aContext.iHandle = aSCOInfo.iConnH; |
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555 aContext.iRemoteDev = aSCOInfo.iBdaddr; |
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556 |
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557 aContext.SetExtOptions(aSyncOpts); |
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558 |
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559 aContext.Socket()->ConnectComplete(); |
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560 |
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561 ChangeState(aContext, CSyncLinkStateFactory::EOpen); |
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562 } |
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563 |
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564 void TSCOLinkStateWaitForSCO::Disconnection(CBTSynchronousLink& aContext) const |
|
565 { |
|
566 // The SCO is not currently connected, therefore this |
|
567 // must be a PHY disconnection event. A ConnectionComplete event |
|
568 // should not be received now so enter the closed state. |
|
569 aContext.Socket()->Error(ENoConnection, MSocketNotify::EErrorConnect); |
|
570 ChangeState(aContext, CSyncLinkStateFactory::EClosed); |
|
571 } |
|
572 |
|
573 |
|
574 void TSCOLinkStateWaitForSCO::Error(CBTSynchronousLink& aContext, TInt aErr) const |
|
575 { |
|
576 // SCO failed |
|
577 aContext.Socket()->Error(aErr, MSocketNotify::EErrorConnect); |
|
578 ChangeState(aContext, CSyncLinkStateFactory::EClosed); |
|
579 } |
|
580 |
|
581 |
|
582 void TSCOLinkStateWaitForSCO::Shutdown(CBTSynchronousLink& aContext, CServProviderBase::TCloseType aCloseType) const |
|
583 { |
|
584 // just change to closing - we'll get notified of PhyUp, but that'll get swallowed |
|
585 // and the connection will timeout and die. |
|
586 if (aCloseType == CServProviderBase::ENormal) |
|
587 { |
|
588 LOG(_L("CBTSyncLink: wait for SCO state shutdown, move to closing")); |
|
589 ChangeState(aContext, CSyncLinkStateFactory::EClosing); |
|
590 } |
|
591 else |
|
592 { |
|
593 LOG(_L("CBTSyncLink: wait for SCO state shutdown, die immediately")); |
|
594 aContext.ReleaseAndUnbind(); |
|
595 ChangeState(aContext, CSyncLinkStateFactory::EClosed); |
|
596 } |
|
597 } |
|
598 |
|
599 TBool TSCOLinkStateWaitForSCO::IsConnectPending() const |
|
600 { |
|
601 return ETrue; |
|
602 } |
|
603 |
|
604 |
|
605 |
|
606 |
|
607 //---------------------------------------------------------------------------------- |
|
608 |
|
609 TSCOLinkStateWaitForStart::TSCOLinkStateWaitForStart(CSyncLinkStateFactory& aFactory) |
|
610 : TSyncLinkState(aFactory) |
|
611 { |
|
612 STATENAME("TSCOLinkStateWaitForStart"); |
|
613 } |
|
614 |
|
615 |
|
616 void TSCOLinkStateWaitForStart::Start(CBTSynchronousLink& aContext) const |
|
617 /** |
|
618 Called as a result of a socket "ConnectComplete" |
|
619 */ |
|
620 { |
|
621 aContext.ListeningSAP()->RemoveChild(&aContext); |
|
622 aContext.ListeningSAP() = NULL; |
|
623 ChangeState(aContext, CSyncLinkStateFactory::EOpen); |
|
624 } |
|
625 |
|
626 void TSCOLinkStateWaitForStart::Error(CBTSynchronousLink& aContext, TInt /*aError*/) const |
|
627 { |
|
628 aContext.ReleaseAndUnbind(); |
|
629 // no socket to notify of error until Start - transition state |
|
630 ChangeState(aContext, CSyncLinkStateFactory::EWaitForStartError); |
|
631 } |
|
632 |
|
633 void TSCOLinkStateWaitForStart::Disconnection(CBTSynchronousLink& aContext) const |
|
634 { |
|
635 // the open - but unaccepted - link has disappeared |
|
636 Error(aContext, KErrDisconnected); |
|
637 } |
|
638 |
|
639 void TSCOLinkStateWaitForStart::Deletion(CBTSynchronousLink& aContext) const |
|
640 { |
|
641 // allowed deletion - should be listening SAP that is deleting us from |
|
642 // an unwanted connection |
|
643 aContext.ReleaseAndUnbind(); |
|
644 aContext.ListeningSAP()->RemoveChild(&aContext); |
|
645 } |
|
646 |
|
647 void TSCOLinkStateWaitForStart::Shutdown(CBTSynchronousLink& aContext, CServProviderBase::TCloseType /*aCloseType*/) const |
|
648 { |
|
649 LOG(_L("CBTSyncLink: wait for start state shutdown, tell peer and die")); |
|
650 TInt err = aContext.CommonShutdown(); // tell peer |
|
651 if (err) |
|
652 { |
|
653 Error(aContext, KErrCouldNotDisconnect); |
|
654 } |
|
655 |
|
656 aContext.ReleaseAndUnbind(); |
|
657 |
|
658 // just go |
|
659 aContext.ListeningSAP()->DeleteChild(&aContext); |
|
660 } |
|
661 |
|
662 |
|
663 //---------------------------------------------------------------------------------- |
|
664 |
|
665 TSCOLinkStateWaitForStartError::TSCOLinkStateWaitForStartError(CSyncLinkStateFactory& aFactory) |
|
666 : TSyncLinkState(aFactory) |
|
667 { |
|
668 STATENAME("TSCOLinkStateWaitForStartError"); |
|
669 } |
|
670 |
|
671 void TSCOLinkStateWaitForStartError::Shutdown(CBTSynchronousLink& aContext, CServProviderBase::TCloseType aCloseType) const |
|
672 { |
|
673 LOG(_L("CBTSyncLink: wait for start error state shutdown, immediate")); |
|
674 ChangeState(aContext, CSyncLinkStateFactory::EClosed); |
|
675 if (aCloseType == CServProviderBase::ENormal) |
|
676 { |
|
677 aContext.Socket()->CanClose(); |
|
678 } |
|
679 } |
|
680 |
|
681 void TSCOLinkStateWaitForStartError::Start(CBTSynchronousLink& aContext) const |
|
682 { |
|
683 // summat went wrong - close and remove this acceptor |
|
684 ChangeState(aContext, CSyncLinkStateFactory::EClosed); |
|
685 aContext.Socket()->Disconnect(); |
|
686 |
|
687 aContext.ListeningSAP()->RemoveChild(&aContext); |
|
688 } |
|
689 |
|
690 void TSCOLinkStateWaitForStartError::Deletion(CBTSynchronousLink& aContext) const |
|
691 { |
|
692 // allowed deletion - should be listening SAP that is deleting us from |
|
693 // an unwanted connection |
|
694 aContext.ReleaseAndUnbind(); |
|
695 aContext.ListeningSAP()->RemoveChild(&aContext); |
|
696 } |
|
697 |
|
698 //---------------------------------------------------------------------------------- |
|
699 |
|
700 TSCOLinkStateListening::TSCOLinkStateListening(CSyncLinkStateFactory& aFactory) |
|
701 : TSyncLinkState(aFactory) |
|
702 { |
|
703 STATENAME("TSCOLinkStateListening"); |
|
704 } |
|
705 |
|
706 void TSCOLinkStateListening::Deletion(CBTSynchronousLink& aContext) const |
|
707 { |
|
708 delete aContext.iChild; |
|
709 } |
|
710 |
|
711 void TSCOLinkStateListening::Shutdown(CBTSynchronousLink& aContext, CServProviderBase::TCloseType aCloseType) const |
|
712 { |
|
713 LOG(_L("CBTSyncLink: listening state shutdown, immediate")); |
|
714 if (aContext.iChild) |
|
715 { |
|
716 aContext.iChild->ParentClosing(); |
|
717 } |
|
718 |
|
719 ChangeState(aContext, CSyncLinkStateFactory::EClosed); |
|
720 if (aCloseType == CServProviderBase::ENormal) |
|
721 { |
|
722 aContext.Socket()->CanClose(); |
|
723 } |
|
724 } |
|
725 |
|
726 TBool TSCOLinkStateListening::ConnectRequest(CBTSynchronousLink& aContext, const TBTConnect& /*aSCOLink*/, const CPhysicalLink& aPhysicalLink) const |
|
727 { |
|
728 // only support one 'link' (HCI-wise!) at moment |
|
729 TRAPD(err, SpawnL(aContext, const_cast<CPhysicalLink&>(aPhysicalLink))); |
|
730 return (err==KErrNone); |
|
731 // don't transition state yet - connection may fail. |
|
732 }; |
|
733 |
|
734 |
|
735 void TSCOLinkStateListening::SpawnL(CBTSynchronousLink& aContext, CPhysicalLink& aPhysicalLink) const |
|
736 { |
|
737 CBTSynchronousLink* child; |
|
738 switch (aContext.iLinkType) |
|
739 { |
|
740 case ESCOLink: |
|
741 child = CSCOLink::NewLC(aContext.iLinksMan, NULL); |
|
742 break; |
|
743 default: |
|
744 child = CeSCOLink::NewLC(aContext.iLinksMan, NULL); |
|
745 break; |
|
746 } |
|
747 |
|
748 // configure the SAP and prepare PHY for SCO link |
|
749 User::LeaveIfError(child->BindLink(child->iLinkType, aPhysicalLink)); |
|
750 |
|
751 // tell child about parent |
|
752 child->ListeningSAP() = &aContext; |
|
753 |
|
754 // and tell parent about child |
|
755 aContext.iChild = child; |
|
756 CleanupStack::Pop(child); |
|
757 |
|
758 aPhysicalLink.OverridePark(); |
|
759 |
|
760 child->iRemoteDev = aPhysicalLink.BDAddr(); |
|
761 |
|
762 // transition for child is Closed->Accepting |
|
763 ChangeState(*child, CSyncLinkStateFactory::EAccepting); |
|
764 } |
|
765 |
|
766 void TSCOLinkStateListening::Exit(CBTSynchronousLink& aContext) const |
|
767 { |
|
768 aContext.iLinksMan.RemoveListener(aContext); |
|
769 } |
|
770 |
|
771 |
|
772 //---------------------------------------------------------------------------------- |
|
773 |
|
774 TSCOLinkStateAccepting::TSCOLinkStateAccepting(CSyncLinkStateFactory& aFactory) |
|
775 : TSyncLinkState(aFactory) |
|
776 { |
|
777 STATENAME("TSCOLinkStateAccepting"); |
|
778 } |
|
779 |
|
780 void TSCOLinkStateAccepting::Enter(CBTSynchronousLink& aContext) const |
|
781 { |
|
782 // start watchdog |
|
783 aContext.iAcceptWatchdog.Start(); |
|
784 } |
|
785 |
|
786 void TSCOLinkStateAccepting::Exit(CBTSynchronousLink& aContext) const |
|
787 { |
|
788 // Ensure watchdog is cancelled (calling Cancel twice is OK) |
|
789 aContext.iAcceptWatchdog.Cancel(); |
|
790 } |
|
791 |
|
792 void TSCOLinkStateAccepting::ConnectComplete(CBTSynchronousLink& aContext, const TBTConnect& aSCOInfo, const TBTSyncConnectOpts& aSyncOpts) const |
|
793 { |
|
794 // cancel watchdog |
|
795 aContext.iAcceptWatchdog.Cancel(); |
|
796 |
|
797 aContext.iHandle = aSCOInfo.iConnH; |
|
798 aContext.iRemoteDev = aSCOInfo.iBdaddr; |
|
799 aContext.SetExtOptions(aSyncOpts); |
|
800 |
|
801 if (aContext.iClosePending) |
|
802 { |
|
803 //aContext.Shutdown(CServProviderBase::EImmediate);//this just resets iClosePending to ETrue |
|
804 TInt err = aContext.CommonShutdown(); |
|
805 |
|
806 if (err) |
|
807 { |
|
808 aContext.Socket()->Error(KErrCouldNotDisconnect, MSocketNotify::EErrorClose); |
|
809 ChangeState(aContext, CSyncLinkStateFactory::EOpen); |
|
810 } |
|
811 else |
|
812 { |
|
813 // wait for disconnection complete before anything else |
|
814 ChangeState(aContext, CSyncLinkStateFactory::EClosing); |
|
815 } |
|
816 } |
|
817 else |
|
818 { |
|
819 // let the listening Socket know... |
|
820 __ASSERT_DEBUG(aContext.iParent, PanicInState(EBTSCOSAPParentlessChild)); |
|
821 __ASSERT_DEBUG(aContext.iParent->Socket(), PanicInState(EBTSCOSAPNullSocket)); |
|
822 ChangeState(aContext, CSyncLinkStateFactory::EWaitForStart); |
|
823 aContext.iParent->Socket()->ConnectComplete(aContext); // tell listening socket about its new SAP |
|
824 } |
|
825 } |
|
826 |
|
827 void TSCOLinkStateAccepting::Error(CBTSynchronousLink& aContext, TInt /*aError*/) const |
|
828 { |
|
829 // cancel watchdog |
|
830 aContext.iAcceptWatchdog.Cancel(); |
|
831 |
|
832 aContext.ReleaseAndUnbind(); |
|
833 |
|
834 // aContext will be deleted |
|
835 aContext.ListeningSAP()->DeleteChild(&aContext); |
|
836 } |
|
837 |
|
838 void TSCOLinkStateAccepting::Deletion(CBTSynchronousLink& aContext) const |
|
839 { |
|
840 // cancel watchdog |
|
841 aContext.iAcceptWatchdog.Cancel(); |
|
842 |
|
843 // allowed deletion |
|
844 aContext.ReleaseAndUnbind(); |
|
845 aContext.ListeningSAP()->RemoveChild(&aContext); |
|
846 } |
|
847 |
|
848 void TSCOLinkStateAccepting::Timeout(CBTSynchronousLink& aContext, TBasebandTimeout aTimeout) const |
|
849 { |
|
850 if (aTimeout == EAccept) |
|
851 { |
|
852 // the accept never worked - give up |
|
853 Error(aContext, KErrTimedOut); |
|
854 } |
|
855 } |
|
856 |
|
857 void TSCOLinkStateAccepting::Shutdown(CBTSynchronousLink& aContext, CServProviderBase::TCloseType IF_FLOGGING(aCloseType)) const |
|
858 { |
|
859 LOG1(_L("CBTSyncLink: accepting state shutdown, just take a note. Type: %d"), aCloseType); |
|
860 aContext.iClosePending = ETrue; |
|
861 } |
|
862 |
|
863 void TSCOLinkStateAccepting::Disconnection(CBTSynchronousLink& aContext) const |
|
864 { |
|
865 LOG(_L("CBTSyncLink: accepting state and PHY has disconnected.")); |
|
866 Error(aContext, KErrDisconnected); |
|
867 } |
|
868 |
|
869 void TSCOLinkStateAccepting::ParentClosing(CBTSynchronousLink& aContext) const |
|
870 { |
|
871 aContext.iClosePending = ETrue; |
|
872 } |
|
873 |
|
874 |
|
875 //---------------------------------------------------------------------------------- |
|
876 |
|
877 TSCOLinkStateOpen::TSCOLinkStateOpen(CSyncLinkStateFactory& aFactory) |
|
878 : TSyncLinkState(aFactory) |
|
879 { |
|
880 STATENAME("TSCOLinkStateOpen"); |
|
881 } |
|
882 |
|
883 void TSCOLinkStateOpen::Shutdown(CBTSynchronousLink& aContext, CServProviderBase::TCloseType aCloseType) const |
|
884 { |
|
885 TInt err = aContext.CommonShutdown(); |
|
886 |
|
887 if (err) |
|
888 { |
|
889 aContext.Socket()->Error(KErrCouldNotDisconnect, MSocketNotify::EErrorClose); |
|
890 } |
|
891 else |
|
892 { |
|
893 if (aCloseType == CServProviderBase::ENormal) |
|
894 { |
|
895 LOG(_L("CBTSyncLink: open state shutdown, wait for link down")); |
|
896 |
|
897 // wait for disconnection complete before anything else |
|
898 ChangeState(aContext, CSyncLinkStateFactory::EClosing); |
|
899 } |
|
900 else |
|
901 { |
|
902 LOG(_L("CBTSyncLink: open state shutdown, immediate")); |
|
903 |
|
904 aContext.ReleaseAndUnbind(); |
|
905 aContext.iLinksMan.Baseband().UpdateModelForDisconnection(aContext.iHandle, aContext.LinkType()); |
|
906 ChangeState(aContext, CSyncLinkStateFactory::EClosed); |
|
907 } |
|
908 } |
|
909 } |
|
910 |
|
911 TUint TSCOLinkStateOpen::Write(CBTSynchronousLink& aContext, const TDesC8& aData, TUint aOptions, TSockAddr* aAddr) const |
|
912 { |
|
913 TUint retVal = aContext.DoWrite(aData, aOptions, aAddr); |
|
914 return retVal; |
|
915 } |
|
916 |
|
917 void TSCOLinkStateOpen::Disconnection(CBTSynchronousLink& aContext) const |
|
918 { |
|
919 // we were open, go to closed |
|
920 ChangeState(aContext, CSyncLinkStateFactory::EClosed); |
|
921 aContext.Socket()->Disconnect(); |
|
922 } |
|
923 |
|
924 void TSCOLinkStateOpen::Error(CBTSynchronousLink& aContext, TInt /*aErr*/) const |
|
925 { |
|
926 // the link has gone - go through disconnect path |
|
927 aContext.Disconnection(); |
|
928 } |
|
929 |
|
930 void TSCOLinkStateOpen::PacketTypeChange(CBTSynchronousLink& __DEBUG_ONLY(aContext), THCIErrorCode aErr, THCIConnHandle __DEBUG_ONLY(aConnH), TUint16 /*aNewPacketMask*/) const |
|
931 { |
|
932 __ASSERT_DEBUG(aConnH == aContext.Handle(), PanicInState(EBTSCOSAPWrongSCOSAP)); |
|
933 |
|
934 if (aErr == KErrNone) |
|
935 { |
|
936 // in 1.1 this won't happen - for 1.2 eSCO do something here |
|
937 } |
|
938 else |
|
939 { |
|
940 // dump |
|
941 } |
|
942 } |
|
943 |
|
944 void TSCOLinkStateOpen::DataReceived(CBTSynchronousLink& aContext, const TDesC8& aData) const |
|
945 { |
|
946 __ASSERT_DEBUG(aData.Size() <= KInboundSCODataSize, Panic(ESCOInboundPacketTooLarge)); |
|
947 aContext.InboundFrame() = aData; |
|
948 |
|
949 // signal (stream) socket of number of bytes we have |
|
950 aContext.Socket()->NewData(aData.Length()); |
|
951 } |
|
952 |
|
953 TBool TSCOLinkStateOpen::IsOpen() const |
|
954 { |
|
955 return ETrue; |
|
956 } |
|
957 |
|
958 void TSCOLinkStateOpen::Exit(CBTSynchronousLink& /*aContext*/) const |
|
959 { |
|
960 } |
|
961 |
|
962 |
|
963 //---------------------------------------------------------------------------------- |
|
964 |
|
965 TSCOLinkStateClosing::TSCOLinkStateClosing(CSyncLinkStateFactory& aFactory) |
|
966 : TSyncLinkState(aFactory) |
|
967 { |
|
968 STATENAME("TSCOLinkStateClosing"); |
|
969 } |
|
970 |
|
971 void TSCOLinkStateClosing::Shutdown(CBTSynchronousLink& aContext, CServProviderBase::TCloseType aCloseType) const |
|
972 { |
|
973 LOG(_L("CBTSyncLink: closing state shutdown, immediate")); |
|
974 |
|
975 ChangeState(aContext, CSyncLinkStateFactory::EClosed); |
|
976 if ((aCloseType == CServProviderBase::ENormal) && (aContext.iSocket)) |
|
977 { |
|
978 aContext.Socket()->CanClose(); |
|
979 } |
|
980 } |
|
981 |
|
982 void TSCOLinkStateClosing::ActiveOpen(CBTSynchronousLink& aContext) const |
|
983 { |
|
984 // erk - have been asked to Open as we're closing down |
|
985 // the link hasn't gone yet, so just say it's there! |
|
986 ChangeState(aContext, CSyncLinkStateFactory::EOpen); |
|
987 aContext.Socket()->ConnectComplete(); |
|
988 } |
|
989 |
|
990 |
|
991 void TSCOLinkStateClosing::Error(CBTSynchronousLink& aContext, TInt /*aError*/) const |
|
992 { |
|
993 ChangeState(aContext, CSyncLinkStateFactory::EClosed); |
|
994 } |
|
995 |
|
996 void TSCOLinkStateClosing::Disconnection(CBTSynchronousLink& aContext) const |
|
997 { |
|
998 LOG(_L("CBTSyncLink: disconnection notification in closing state")); |
|
999 |
|
1000 // as expected |
|
1001 ChangeState(aContext, CSyncLinkStateFactory::EClosed); |
|
1002 if (aContext.iSocket) |
|
1003 { |
|
1004 aContext.Socket()->CanClose(); |
|
1005 } |
|
1006 // Otherwise just swallow the event... |
|
1007 } |
|
1008 |
|
1009 TBool TSCOLinkStateClosing::IsIdle() const |
|
1010 { |
|
1011 return ETrue; |
|
1012 } |
|
1013 |
|
1014 void TSCOLinkStateClosing::ConnectComplete(CBTSynchronousLink& aContext, const TBTConnect& aSCOInfo, const TBTSyncConnectOpts& /*aSyncOpts*/) const |
|
1015 { |
|
1016 LOG(_L("CBTSyncLink: connection notification in closing state")); |
|
1017 |
|
1018 // This connection is no longer required, so close the socket |
|
1019 ChangeState(aContext, CSyncLinkStateFactory::EClosed); |
|
1020 |
|
1021 |
|
1022 //The call path to this ConnectComplete will have included CPhysicalLink::ConnectionComplete. |
|
1023 //CPhysicalLink::ConnectionComplete updates the baseband model to show a new SCO link is in place |
|
1024 //But if the SCO link is in state TSCOLinkStateClosing, setup of the new link won't occur. So the model |
|
1025 //should be updated again. If it isn't updated, it won't be possible to add a new SCO link, because the |
|
1026 //model will indicate that one already exists. |
|
1027 aContext.iLinksMan.Baseband().UpdateModelForDisconnection(aSCOInfo.iConnH, aSCOInfo.iLinkType); |
|
1028 |
|
1029 //Even though the SAP is now EClosed, the baseband might have a SCO link to the remote device. |
|
1030 //The only way to be sure is to send a Disconnect. The transition to EClosed at the will have |
|
1031 //unbound this SAP from the PHY, so if the remote device responds to the Disconnect, the response |
|
1032 //will be thrown away. |
|
1033 TRAP_IGNORE(aContext.iLinksMan.HCIFacade().DisconnectL(aSCOInfo.iConnH, ERemoteUserEndedConnection)); |
|
1034 |
|
1035 if (aContext.iSocket) |
|
1036 { |
|
1037 aContext.Socket()->CanClose(); |
|
1038 } |
|
1039 // socket could be deleted now so be careful |
|
1040 } |
|
1041 |
|
1042 void TSCOLinkStateClosing::Deletion(CBTSynchronousLink& /*aContext*/) const |
|
1043 { |
|
1044 // allowed |
|
1045 } |
|
1046 |
|
1047 //----------------------------------------------------------------------------------- |
|
1048 |